Commit | Line | Data |
---|---|---|
495ae4b0 PH |
1 | Change log file for Exim from version 4.21 |
2 | ------------------------------------------- | |
3 | ||
c0e56233 TF |
4 | |
5 | Exim version 4.83 | |
6 | ----------------- | |
7 | ||
8 | TF/01 Correctly close the server side of TLS when forking for delivery. | |
9 | ||
10 | When a message was received over SMTP with TLS, Exim failed to clear up | |
11 | the incoming connection properly after forking off the child process to | |
12 | deliver the message. In some situations the subsequent outgoing | |
13 | delivery connection happened to have the same fd number as the incoming | |
14 | connection previously had. Exim would try to use TLS and fail, logging | |
15 | a "Bad file descriptor" error. | |
16 | ||
7245734e TF |
17 | TF/02 Portability fix for building lookup modules on Solaris when the xpg4 |
18 | utilities have not been installed. | |
19 | ||
fd5dad68 JH |
20 | JH/01 Fix memory-handling in use of acl as a conditional; avoid free of |
21 | temporary space as the ACL may create new global variables. | |
22 | ||
5428a946 TL |
23 | TL/01 LDAP support uses per connection or global context settings, depending |
24 | upon the detected version of the libraries at build time. | |
25 | ||
a3c86431 TL |
26 | TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection |
27 | to extract and use the src ip:port in logging and expansions as if it | |
28 | were a direct connection from the outside internet. | |
29 | ||
aa26e137 JH |
30 | JH/02 Add ${listextract {number}{list}{success}{fail}}. |
31 | ||
5a1b8443 WB |
32 | TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents. |
33 | Properly escape header and check for NULL return. | |
34 | ||
72c9e342 PP |
35 | PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok |
36 | not dns_use_dnssec. | |
37 | ||
76f44207 WB |
38 | JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp. |
39 | ||
770747fd MFM |
40 | TL/04 Add verify = header_names_ascii check to reject email with non-ASCII |
41 | characters in header names, implemented as a verify condition. | |
42 | Contributed by Michael Fischer v. Mollard. | |
43 | ||
8ddef691 | 44 | TL/05 Rename SPF condition results err_perm and err_temp to standardized |
982650ec TL |
45 | results permerror and temperror. Previous values are deprecated but |
46 | still accepted. In a future release, err_perm and err_temp will be | |
47 | completely removed, which will be a backward incompatibility if the | |
48 | ACL tests for either of these two old results. Patch contributed by | |
8ddef691 | 49 | user bes-internal on the mailing list. |
c0e56233 | 50 | |
b9c2e32f AR |
51 | JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau. |
52 | ||
e45a1c37 JH |
53 | JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log |
54 | selectors, in both main and reject logs. | |
55 | ||
67d81c10 JH |
56 | JH/06 Log outbound-TLS and port details, subject to log selectors, for a |
57 | failed delivery. | |
58 | ||
b1f8e4f8 JH |
59 | JH/07 Add malware type "sock" for talking to simple daemon. |
60 | ||
511a6c14 | 61 | JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport. |
511a6c14 JH |
62 | |
63 | JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in | |
64 | routers/transports under cutthrough routing. | |
214042d2 | 65 | |
51c7471d JH |
66 | JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative |
67 | numbers. Touch up "bool" conditional to keep the same definition. | |
68 | ||
3695be34 TL |
69 | TL/06 Remove duplicated language in spec file from 4.82 TL/16. |
70 | ||
1e06383a TL |
71 | JH/11 Add dnsdb tlsa lookup. From Todd Lyons. |
72 | ||
76146973 JH |
73 | JH/12 Expand items in router/transport headers_add or headers_remove lists |
74 | individually rather than the list as a whole. Bug 1452. | |
75 | ||
76 | Required for reasonable handling of multiple headers_ options when | |
77 | they may be empty; requires that headers_remove items with embedded | |
78 | colons must have them doubled (or the list-separator changed). | |
79 | ||
8c8b8274 TL |
80 | TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly |
81 | view the policy declared in the DMARC record. Currently, $dmarc_status | |
82 | is a combined value of both the record presence and the result of the | |
83 | analysis. | |
b1f8e4f8 | 84 | |
35aba663 JH |
85 | JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455. |
86 | ||
8c51eead | 87 | JH/14 New options dnssec_request_domains, dnssec_require_domains on the |
578897ea JH |
88 | dnslookup router and the smtp transport (applying to the forward |
89 | lookup). | |
8c51eead | 90 | |
deae092e HS |
91 | TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list |
92 | of ldap servers used for a specific lookup. Patch provided by Heiko | |
93 | Schlichting. | |
35aba663 | 94 | |
fd3b6a4a | 95 | JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups. |
4e0983dc | 96 | New variable $lookup_dnssec_authenticated for observability. |
fd3b6a4a | 97 | |
8d91c6dc LT |
98 | TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use. |
99 | Patch submitted by Lars Timman. | |
100 | ||
2b4a568d JH |
101 | JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459. |
102 | ||
d2af03f4 HS |
103 | TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim. |
104 | Requires trusted mode and valid format message id, aborts otherwise. | |
105 | Patch contributed by Heiko Schlichting. | |
106 | ||
9d1c15ef JH |
107 | JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item |
108 | certextract with support for various fields. Bug 1358. | |
109 | ||
44662487 JH |
110 | JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling |
111 | is requested by default, modifiable by smtp transport option | |
6a8a60e0 JH |
112 | hosts_request_ocsp. |
113 | ||
114 | JH/22 Expansion operators ${md5:string} and ${sha1::string} can now | |
115 | operate on certificate variables to give certificate fingerprints | |
9ef9101c | 116 | Also new ${sha256:cert_variable}. |
44662487 | 117 | |
fd3b6a4a | 118 | |
2c422e6f | 119 | Exim version 4.82 |
98a90c36 PP |
120 | ----------------- |
121 | ||
122 | PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities. | |
123 | ||
12f69989 PP |
124 | PP/02 Make -n do something, by making it not do something. |
125 | When combined with -bP, the name of an option is not output. | |
126 | ||
54c90be1 PP |
127 | PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured |
128 | by GnuTLS. | |
129 | ||
1f4a55da PP |
130 | PP/04 First step towards DNSSEC, provide $sender_host_dnssec for |
131 | $sender_host_name and config options to manage this, and basic check | |
132 | routines. | |
133 | ||
13363eba | 134 | PP/05 DSCP support for outbound connections and control modifier for inbound. |
36a3ae5f | 135 | |
66645890 | 136 | PP/06 Cyrus SASL: set local and remote IP;port properties for driver. |
e402235f PP |
137 | (Only plugin which currently uses this is kerberos4, which nobody should |
138 | be using, but we should make it available and other future plugins might | |
139 | conceivably use it, even though it would break NAT; stuff *should* be | |
140 | using channel bindings instead). | |
66645890 | 141 | |
a3fb9793 | 142 | PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process |
f4ee74ac PP |
143 | name; added for Sendmail compatibility; requires admin caller. |
144 | Handle -G as equivalent to "control = suppress_local_fixups" (we used to | |
145 | just ignore it); requires trusted caller. | |
a3fb9793 | 146 | Also parse but ignore: -Ac -Am -X<logfile> |
f4ee74ac | 147 | Bugzilla 1117. |
a3fb9793 | 148 | |
d27f98fe | 149 | TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing. |
98a90c36 | 150 | |
6822b909 TL |
151 | TL/02 Add +smtp_confirmation as a default logging option. |
152 | ||
e7568d51 TL |
153 | TL/03 Bugzilla 198 - Implement remove_header ACL modifier. |
154 | Patch by Magnus Holmgren from 2007-02-20. | |
155 | ||
ae0e32ee | 156 | TL/04 Bugzilla 1281 - Spec typo. |
ca0ff207 | 157 | Bugzilla 1283 - Spec typo. |
97f42f10 | 158 | Bugzilla 1290 - Spec grammar fixes. |
ca0ff207 TL |
159 | |
160 | TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation. | |
ae0e32ee | 161 | |
e2658fff TL |
162 | TL/06 Add Experimental DMARC support using libopendmarc libraries. |
163 | ||
83712b39 TL |
164 | TL/07 Fix an out of order global option causing a segfault. Reported to dev |
165 | mailing list by by Dmitry Isaikin. | |
166 | ||
976b7e9f JH |
167 | JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support. |
168 | ||
be4a1376 JH |
169 | JH/02 Support "G" suffix to numbers in ${if comparisons. |
170 | ||
ec4b68e5 PP |
171 | PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL. |
172 | ||
d7148a07 NM |
173 | NM/01 Bugzilla 1197 - Spec typo |
174 | Bugzilla 1196 - Spec examples corrections | |
ec4b68e5 | 175 | |
585121e2 | 176 | JH/03 Add expansion operators ${listnamed:name} and ${listcount:string} |
ec4b68e5 | 177 | |
2519e60d TL |
178 | PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called |
179 | gnutls_enable_pkcs11, but renamed to more accurately indicate its | |
180 | function. | |
a5f239e4 | 181 | |
13d08c90 PP |
182 | PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC. |
183 | Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler. | |
184 | ||
bef3ea7f JH |
185 | JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition |
186 | "acl {{name}{arg}...}", and optional args on acl condition | |
187 | "acl = name arg..." | |
a5f239e4 | 188 | |
846726c5 JH |
189 | JH/05 Permit multiple router/transport headers_add/remove lines. |
190 | ||
3a796370 JH |
191 | JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination. |
192 | ||
ea722490 | 193 | JH/07 Avoid using a waiting database for a single-message-only transport. |
8b260705 PP |
194 | Performance patch from Paul Fisher. Bugzilla 1262. |
195 | ||
b1b05573 JH |
196 | JH/08 Strip leading/trailing newlines from add_header ACL modifier data. |
197 | Bugzilla 884. | |
198 | ||
362145b5 JH |
199 | JH/09 Add $headers_added variable, with content from use of ACL modifier |
200 | add_header (but not yet added to the message). Bugzilla 199. | |
201 | ||
3c0a92dc JH |
202 | JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line. |
203 | Pulled from Bugzilla 817 by Wolfgang Breyha. | |
204 | ||
6d7c6175 PP |
205 | PP/11 SECURITY: protect DKIM DNS decoding from remote exploit. |
206 | CVE-2012-5671 | |
e78e6ecf | 207 | (nb: this is the same fix as in Exim 4.80.1) |
6d7c6175 | 208 | |
6f123593 JH |
209 | JH/11 Add A= logging on delivery lines, and a client_set_id option on |
210 | authenticators. | |
211 | ||
c8e2fc1e JH |
212 | JH/12 Add optional authenticated_sender logging to A= and a log_selector |
213 | for control. | |
214 | ||
005ac57f PP |
215 | PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29. |
216 | ||
3f1df0e3 PP |
217 | PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not |
218 | advertise SMTP AUTH mechanism to us, instead of a generic | |
219 | protocol violation error. Also, make Exim more robust to bad | |
220 | data from the Dovecot auth socket. | |
221 | ||
67bd1ab3 TF |
222 | TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients. |
223 | ||
224 | When a queue runner is handling a message, Exim first routes the | |
225 | recipient addresses, during which it prunes them based on the retry | |
226 | hints database. After that it attempts to deliver the message to | |
227 | any remaining recipients. It then updates the hints database using | |
228 | the retry rules. | |
229 | ||
230 | So if a recipient address works intermittently, it can get repeatedly | |
231 | deferred at routing time. The retry hints record remains fresh so the | |
232 | address never reaches the final cutoff time. | |
233 | ||
234 | This is a fairly common occurrence when a user is bumping up against | |
235 | their storage quota. Exim had some logic in its local delivery code | |
236 | to deal with this. However it did not apply to per-recipient defers | |
237 | in remote deliveries, e.g. over LMTP to a separate IMAP message store. | |
238 | ||
1ddeb334 TF |
239 | This change adds a proper retry rule check during routing so that the |
240 | final cutoff time is checked against the message's age. We only do | |
241 | this check if there is an address retry record and there is not a | |
242 | domain retry record; this implies that previous attempts to handle | |
243 | the address had the retry_use_local_parts option turned on. We use | |
244 | this as an approximation for the destination being like a local | |
245 | delivery, as in LMTP. | |
67bd1ab3 TF |
246 | |
247 | I suspect this new check makes the old local delivery cutoff check | |
248 | redundant, but I have not verified this so I left the code in place. | |
249 | ||
326cdc37 TF |
250 | TF/02 Correct gecos expansion when From: is a prefix of the username. |
251 | ||
252 | Test 0254 submits a message to Exim with the header | |
253 | ||
254 | Resent-From: f | |
255 | ||
256 | When I ran the test suite under the user fanf2, Exim expanded | |
257 | the header to contain my full name, whereas it should have added | |
258 | a Resent-Sender: header. It erroneously treats any prefix of the | |
259 | username as equal to the username. | |
260 | ||
261 | This change corrects that bug. | |
262 | ||
f62514b3 GF |
263 | GF/01 DCC debug and logging tidyup |
264 | Error conditions log to paniclog rather than rejectlog. | |
265 | Debug lines prefixed by "DCC: " to remove any ambiguity. | |
266 | ||
eb505532 TF |
267 | TF/03 Avoid unnecessary rebuilds of lookup-related code. |
268 | ||
14c7b357 PP |
269 | PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server. |
270 | Bug spotted by Jeremy Harris; was flawed since initial commit. | |
271 | Would have resulted in OCSP responses post-SNI triggering an Exim | |
272 | NULL dereference and crash. | |
273 | ||
94eaf700 PP |
274 | JH/13 Add $router_name and $transport_name variables. Bugzilla 308. |
275 | ||
6f5a440a PP |
276 | PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd. |
277 | Bug detection, analysis and fix by Samuel Thibault. | |
278 | Bugzilla 1331, Debian bug #698092. | |
279 | ||
514ee161 SC |
280 | SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]' |
281 | ||
fd98a5c6 JH |
282 | JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt). |
283 | Server implementation by Todd Lyons, client by JH. | |
284 | Only enabled when compiled with EXPERIMENTAL_PRDR. A new | |
285 | config variable "prdr_enable" controls whether the server | |
286 | advertises the facility. If the client requests PRDR a new | |
287 | acl_data_smtp_prdr ACL is called once for each recipient, after | |
288 | the body content is received and before the acl_smtp_data ACL. | |
289 | The client is controlled by bolth of: a hosts_try_prdr option | |
290 | on the smtp transport, and the server advertisement. | |
291 | Default client logging of deliveries and rejections involving | |
292 | PRDR are flagged with the string "PRDR". | |
293 | ||
035c7f1e PP |
294 | PP/16 Fix problems caused by timeouts during quit ACLs trying to double |
295 | fclose(). Diagnosis by Todd Lyons. | |
296 | ||
ff284120 PP |
297 | PP/17 Update configure.default to handle IPv6 localhost better. |
298 | Patch by Alain Williams (plus minor tweaks). | |
299 | Bugzilla 880. | |
300 | ||
26e72755 PP |
301 | PP/18 OpenSSL made graceful with empty tls_verify_certificates setting. |
302 | This is now consistent with GnuTLS, and is now documented: the | |
303 | previous undocumented portable approach to treating the option as | |
304 | unset was to force an expansion failure. That still works, and | |
305 | an empty string is now equivalent. | |
306 | ||
0fbd9bff PP |
307 | PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it |
308 | clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag, | |
309 | not performing validation itself. | |
310 | ||
700d22f3 PP |
311 | PP/20 Added force_command boolean option to pipe transport. |
312 | Patch from Nick Koston, of cPanel Inc. | |
313 | ||
fcc8e047 JH |
314 | JH/15 AUTH support on callouts (and hence cutthrough-deliveries). |
315 | Bugzilla 321, 823. | |
316 | ||
7142daca PP |
317 | TF/04 Added udpsend ACL modifer and hexquote expansion operator |
318 | ||
8c020188 PP |
319 | PP/21 Fix eximon continuous updating with timestamped log-files. |
320 | Broken in a format-string cleanup in 4.80, missed when I repaired the | |
321 | other false fix of the same issue. | |
322 | Report and fix from Heiko Schlichting. | |
323 | Bugzilla 1363. | |
324 | ||
d13cdd30 PP |
325 | PP/22 Guard LDAP TLS usage against Solaris LDAP variant. |
326 | Report from Prashanth Katuri. | |
327 | ||
e2fbf4a2 PP |
328 | PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options. |
329 | It's SecureTransport, so affects any MacOS clients which use the | |
330 | system-integrated TLS libraries, including email clients. | |
331 | ||
f4c1088b PP |
332 | PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if |
333 | using a MIME ACL for non-SMTP local injection. | |
334 | Report and assistance in diagnosis by Warren Baker. | |
335 | ||
c5c2182f PP |
336 | TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver. |
337 | ||
73431ca9 JH |
338 | JH/16 Fix comparisons for 64b. Bugzilla 1385. |
339 | ||
2d07a215 TL |
340 | TL/09 Add expansion variable $authenticated_fail_id to keep track of |
341 | last id that failed so it may be referenced in subsequent ACL's. | |
342 | ||
a30a8861 TL |
343 | TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by |
344 | Alexander Miroch. | |
345 | ||
33382dd9 TL |
346 | TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls |
347 | ldap library initialization, allowing self-signed CA's to be | |
348 | used. Also properly sets require_cert option later in code by | |
349 | using NULL (global ldap config) instead of ldap handle (per | |
350 | session). Bug diagnosis and testing by alxgomz. | |
6d7c6175 | 351 | |
046172e6 TL |
352 | TL/12 Enhanced documentation in the ratelimit.pl script provided in |
353 | the src/util/ subdirectory. | |
354 | ||
1a7b746d TL |
355 | TL/13 Bug 1301 - Imported transport SQL logging patch from Axel Rau |
356 | renamed to Transport Post Delivery Action by Jeremy Harris, as | |
9bdd29ad TL |
357 | EXPERIMENTAL_TPDA. |
358 | ||
359 | TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled | |
360 | when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable | |
361 | redis_servers = needs to be configured which will be used by the redis | |
362 | lookup. Patch from Warren Baker, of The Packet Hub. | |
363 | ||
237b2cf2 TL |
364 | TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall. |
365 | ||
9fc5a352 TL |
366 | TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a |
367 | hostname or reverse DNS when processing a host list. Used suggestions | |
368 | from multiple comments on this bug. | |
1a7b746d | 369 | |
b10e4ec2 TL |
370 | TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey. |
371 | ||
e2cebd74 TL |
372 | TL/18 Had previously added a -CONTINUE option to runtest in the test suite. |
373 | Missed a few lines, added it to make the runtest require no keyboard | |
374 | interaction. | |
375 | ||
376 | TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite | |
377 | contains upper case chars. Make router use caseful_local_part. | |
378 | ||
2519e60d TL |
379 | TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS |
380 | support when GnuTLS has been built with p11-kit. | |
381 | ||
e78e6ecf | 382 | |
4263f395 PP |
383 | Exim version 4.80.1 |
384 | ------------------- | |
385 | ||
386 | PP/01 SECURITY: protect DKIM DNS decoding from remote exploit. | |
387 | CVE-2012-5671 | |
2c422e6f | 388 | This, or similar/improved, will also be change PP/11 of 4.82. |
3c0a92dc | 389 | |
ea722490 | 390 | |
b1770b6e | 391 | Exim version 4.80 |
0599f9cf PP |
392 | ----------------- |
393 | ||
394 | PP/01 Handle short writes when writing local log-files. | |
395 | In practice, only affects FreeBSD (8 onwards). | |
396 | Bugzilla 1053, with thanks to Dmitry Isaikin. | |
397 | ||
23c7e742 NM |
398 | NM/01 Bugzilla 949 - Documentation tweak |
399 | ||
b322aac8 NM |
400 | NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps |
401 | improved. | |
402 | ||
4a891427 NM |
403 | NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs. |
404 | ||
c1e794ba | 405 | PP/02 Implemented gsasl authenticator. |
b322aac8 | 406 | |
97753960 PP |
407 | PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option. |
408 | ||
409 | PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use | |
410 | `pkg-config foo` for cflags/libs. | |
411 | ||
df6303fa PP |
412 | PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent |
413 | with rest of GSASL and with heimdal_gssapi. | |
414 | ||
7e6a8985 PP |
415 | PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use |
416 | `pkg-config foo` for cflags/libs for the TLS implementation. | |
417 | ||
f1e05cc7 | 418 | PP/07 New expansion variable $tls_bits; Cyrus SASL server connection |
20aa9dbd PP |
419 | properties get this fed in as external SSF. A number of robustness |
420 | and debugging improvements to the cyrus_sasl authenticator. | |
b322aac8 | 421 | |
4c287009 PP |
422 | PP/08 cyrus_sasl server now expands the server_realm option. |
423 | ||
b98bb9ac PP |
424 | PP/09 Bugzilla 1214 - Log authentication information in reject log. |
425 | Patch by Jeremy Harris. | |
426 | ||
4a6a987a PP |
427 | PP/10 Added dbmjz lookup type. |
428 | ||
c45dd180 | 429 | PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid. |
c7955b11 | 430 | |
7db8d074 PP |
431 | PP/12 MAIL args handles TAB as well as SP, for better interop with |
432 | non-compliant senders. | |
433 | Analysis and variant patch by Todd Lyons. | |
434 | ||
eae0036b | 435 | NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated |
e0df1c83 DM |
436 | Bug report from Lars Müller <lars@samba.org> (via SUSE), |
437 | Patch from Dirk Mueller <dmueller@suse.com> | |
438 | ||
dec5017e PP |
439 | PP/13 tls_peerdn now print-escaped for spool files. |
440 | Observed some $tls_peerdn in wild which contained \n, which resulted | |
441 | in spool file corruption. | |
442 | ||
c80c5570 PP |
443 | PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options" |
444 | values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read | |
445 | or write after TLS renegotiation, which otherwise led to messages | |
446 | "Got SSL error 2". | |
447 | ||
076b11e2 PP |
448 | TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted |
449 | as a tracking header (ie: a signed header comes before the signature). | |
450 | Patch from Wolfgang Breyha. | |
451 | ||
5407bfff JH |
452 | JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a |
453 | comma-sep list; embedded commas doubled. | |
454 | ||
9e45c72b PP |
455 | JH/02 Refactored ACL "verify =" logic to table-driven dispatch. |
456 | ||
e74376d8 PP |
457 | PP/15 LDAP: Check for errors of TLS initialisation, to give correct |
458 | diagnostics. | |
459 | Report and patch from Dmitry Banschikov. | |
460 | ||
da3ad30d PP |
461 | PP/16 Removed "dont_insert_empty_fragments" fron "openssl_options". |
462 | Removed SSL_clear() after SSL_new() which led to protocol negotiation | |
463 | failures. We appear to now support TLS1.1+ with Exim. | |
464 | ||
7be682ca PP |
465 | PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate |
466 | lets Exim select keys and certificates based upon TLS SNI from client. | |
3f0945ff PP |
467 | Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly |
468 | before an outbound SMTP session. New log_selector, +tls_sni. | |
7be682ca | 469 | |
ef840681 PP |
470 | PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid |
471 | NULL dereference. Report and patch from Alun Jones. | |
472 | ||
5bfb4cdf PP |
473 | PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage |
474 | on less well tested platforms). Obviates NetBSD pkgsrc patch-ac. | |
475 | Not seeing resolver debug output on NetBSD, but suspect this is a | |
476 | resolver implementation change. | |
477 | ||
c6e95d22 PP |
478 | PP/20 Revert part of NM/04, it broke log_path containing %D expansions. |
479 | Left warnings. Added "eximon gdb" invocation mode. | |
480 | ||
9cbad13b PP |
481 | PP/21 Defaulting "accept_8bitmime" to true, not false. |
482 | ||
9ee44efb PP |
483 | PP/22 Added -bw for inetd wait mode support. |
484 | ||
6a6084f8 PP |
485 | PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to |
486 | locate the relevant includes and libraries. Made this the default. | |
487 | ||
12dd53c7 PP |
488 | PP/24 Fixed headers_only on smtp transports (was not sending trailing dot). |
489 | Bugzilla 1246, report and most of solution from Tomasz Kusy. | |
490 | ||
9e45c72b | 491 | JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m"). |
97d17305 JH |
492 | This may cause build issues on older platforms. |
493 | ||
17c76198 PP |
494 | PP/25 Revamped GnuTLS support, passing tls_require_ciphers to |
495 | gnutls_priority_init, ignoring Exim options gnutls_require_kx, | |
496 | gnutls_require_mac & gnutls_require_protocols (no longer supported). | |
497 | Added SNI support via GnuTLS too. | |
af3498d6 | 498 | Made ${randint:..} supplier available, if using not-too-old GnuTLS. |
17c76198 | 499 | |
53947857 | 500 | PP/26 Added EXPERIMENTAL_OCSP for OpenSSL. |
3f7eeb86 | 501 | |
eae0036b | 502 | PP/27 Applied dnsdb SPF support patch from Janne Snabb. |
8ee4b30e PP |
503 | Applied second patch from Janne, implementing suggestion to default |
504 | multiple-strings-in-record handling to match SPF spec. | |
eae0036b | 505 | |
9e45c72b | 506 | JH/04 Added expansion variable $tod_epoch_l for a higher-precision time. |
2605c55b | 507 | |
7390e768 PP |
508 | PP/28 Fix DCC dcc_header content corruption (stack memory referenced, |
509 | read-only, out of scope). | |
510 | Patch from Wolfgang Breyha, report from Stuart Northfield. | |
511 | ||
08488c86 PP |
512 | PP/29 Fix three issues highlighted by clang analyser static analysis. |
513 | Only crash-plausible issue would require the Cambridge-specific | |
514 | iplookup router and a misconfiguration. | |
515 | Report from Marcin Mirosław. | |
516 | ||
6475bd82 PP |
517 | PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy. |
518 | ||
81f91683 PP |
519 | PP/31 %D in printf continues to cause issues (-Wformat=security), so for |
520 | now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS. | |
521 | As part of this, removing so much warning spew let me fix some minor | |
522 | real issues in debug logging. | |
523 | ||
5779e6aa PP |
524 | PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing |
525 | assignment on my part. Fixed. | |
526 | ||
3375e053 PP |
527 | PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit |
528 | of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by | |
529 | Janne Snabb (who went above and beyond: thank you). | |
530 | ||
531 | PP/34 Validate tls_require_ciphers on startup, since debugging an invalid | |
532 | string otherwise requires a connection and a bunch more work and it's | |
78e0c7a3 PP |
533 | relatively easy to get wrong. Should also expose TLS library linkage |
534 | problems. | |
3375e053 | 535 | |
9d26b8c0 PP |
536 | PP/35 Pull in <features.h> on Linux, for some portability edge-cases of |
537 | 64-bit ${eval} (JH/03). | |
538 | ||
57eb9e91 | 539 | PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of |
b87a6e0e PP |
540 | GNU libc to support some of the 64-bit stuff, should not lead to |
541 | conflicts. Defined before os.h is pulled in, so if a given platform | |
542 | needs to override this, it can. | |
543 | ||
16880d1a PP |
544 | PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought |
545 | protection layer was required, which is not implemented. | |
546 | Bugzilla 1254, patch from Wolfgang Breyha. | |
547 | ||
a799883d PP |
548 | PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built |
549 | into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make | |
550 | tls_dhparam take prime identifiers. Also unbreak combination of | |
551 | OpenSSL+DH_params+TLSSNI. | |
552 | ||
3ecab157 | 553 | PP/39 Disable SSLv2 by default in OpenSSL support. |
f0f5a555 | 554 | |
0599f9cf | 555 | |
867fcbf5 PP |
556 | Exim version 4.77 |
557 | ----------------- | |
558 | ||
559 | PP/01 Solaris build fix for Oracle's LDAP libraries. | |
560 | Bugzilla 1109, patch from Stephen Usher. | |
561 | ||
f1a29782 TF |
562 | TF/01 HP/UX build fix: avoid arithmetic on a void pointer. |
563 | ||
ab42bd23 TK |
564 | TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o |
565 | whitespace trailer | |
867fcbf5 | 566 | |
0ca0cf52 TF |
567 | TF/02 Fix a couple more cases where we did not log the error message |
568 | when unlink() failed. See also change 4.74-TF/03. | |
569 | ||
921b12ca TF |
570 | TF/03 Make the exiwhat support code safe for signals. Previously Exim might |
571 | lock up or crash if it happened to be inside a call to libc when it | |
572 | got a SIGUSR1 from exiwhat. | |
573 | ||
574 | The SIGUSR1 handler appends the current process status to the process | |
575 | log which is later printed by exiwhat. It used to use the general | |
576 | purpose logging code to do this, but several functions it calls are | |
577 | not safe for signals. | |
578 | ||
579 | The new output code in the SIGUSR1 handler is specific to the process | |
580 | log, and simple enough that it's easy to inspect for signal safety. | |
581 | Removing some special cases also simplifies the general logging code. | |
582 | Removing the spurious timestamps from the process log simplifies | |
583 | exiwhat. | |
584 | ||
c99ce5c9 TF |
585 | TF/04 Improved ratelimit ACL condition. |
586 | ||
587 | The /noupdate option has been deprecated in favour of /readonly which | |
588 | has clearer semantics. The /leaky, /strict, and /readonly update modes | |
589 | are mutually exclusive. The update mode is no longer included in the | |
590 | database key; it just determines when the database is updated. (This | |
591 | means that when you upgrde Exim will forget old rate measurements.) | |
592 | ||
593 | Exim now checks that the per_* options are used with an update mode that | |
594 | makes sense for the current ACL. For example, when Exim is processing a | |
595 | message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify | |
596 | per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you | |
597 | must specify per_mail/readonly. If you omit the update mode it defaults to | |
598 | /leaky where that makes sense (as before) or /readonly where required. | |
599 | ||
600 | The /noupdate option is now undocumented but still supported for | |
601 | backwards compatibility. It is equivalent to /readonly except that in | |
602 | ACLs where /readonly is required you may specify /leaky/noupdate or | |
603 | /strict/noupdate which are treated the same as /readonly. | |
604 | ||
605 | A useful new feature is the /count= option. This is a generalization | |
606 | of the per_byte option, so that you can measure the throughput of other | |
607 | aggregate values. For example, the per_byte option is now equivalent | |
608 | to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }. | |
609 | ||
610 | The per_rcpt option has been generalized using the /count= mechanism | |
611 | (though it's more complicated than the per_byte equivalence). When it is | |
612 | used in acl_smtp_rcpt, the per_rcpt option adds recipients to the | |
613 | measured rate one at a time; if it is used later (e.g. in acl_smtp_data) | |
614 | or in a non-SMTP ACL it adds all the recipients in one go. (The latter | |
615 | /count=$recipients_count behaviour used to work only in non-SMTP ACLs.) | |
616 | Note that using per_rcpt with a non-readonly update mode in more than | |
617 | one ACL will cause the recipients to be double-counted. (The per_mail | |
618 | and per_byte options don't have this problem.) | |
619 | ||
620 | The handling of very low rates has changed slightly. If the computed rate | |
621 | is less than the event's count (usually one) then this event is the first | |
622 | after a long gap. In this case the rate is set to the same as this event's | |
623 | count, so that the first message of a spam run is counted properly. | |
624 | ||
625 | The major new feature is a mechanism for counting the rate of unique | |
626 | events. The new per_addr option counts the number of different | |
627 | recipients that someone has sent messages to in the last time period. It | |
628 | behaves like per_rcpt if all the recipient addresses are different, but | |
629 | duplicate recipient addresses do not increase the measured rate. Like | |
630 | the /count= option this is a general mechanism, so the per_addr option | |
631 | is equivalent to per_rcpt/unique=$local_part@$domain. You can, for | |
632 | example, measure the rate that a client uses different sender addresses | |
633 | with the options per_mail/unique=$sender_address. There are further | |
634 | details in the main documentation. | |
635 | ||
3634fc25 TF |
636 | TF/05 Removed obsolete $Cambridge$ CVS revision strings. |
637 | ||
792e8a19 TF |
638 | TF/06 Removed a few PCRE remnants. |
639 | ||
5901f0ab TF |
640 | TF/07 Automatically extract Exim's version number from tags in the git |
641 | repository when doing development or release builds. | |
642 | ||
7f2a2a43 PP |
643 | PP/02 Raise smtp_cmd_buffer_size to 16kB. |
644 | Bugzilla 879. Patch from Paul Fisher. | |
e2ca7082 | 645 | |
061b7ebd PP |
646 | PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport. |
647 | Heavily based on revision 40f9a89a from Simon Arlott's tree. | |
648 | Bugzilla 97. | |
649 | ||
e12f8c32 PP |
650 | PP/04 Use .dylib instead of .so for dynamic library loading on MacOS. |
651 | ||
9e949f00 | 652 | PP/05 Variable $av_failed, true if the AV scanner deferred. |
7f2a2a43 PP |
653 | Bugzilla 1078. Patch from John Horne. |
654 | ||
655 | PP/06 Stop make process more reliably on build failure. | |
656 | Bugzilla 1087. Patch from Heiko Schlittermann. | |
9e949f00 | 657 | |
555ae6af | 658 | PP/07 Make maildir_use_size_file an _expandable_ boolean. |
ac53fcda PP |
659 | Bugzilla 1089. Patch from Heiko Schlittermann. |
660 | ||
661 | PP/08 Handle ${run} returning more data than OS pipe buffer size. | |
662 | Bugzilla 1131. Patch from Holger Weiß. | |
555ae6af | 663 | |
6f7fe114 PP |
664 | PP/09 Handle IPv6 addresses with SPF. |
665 | Bugzilla 860. Patch from Wolfgang Breyha. | |
666 | ||
c566dd90 PP |
667 | PP/10 GnuTLS: support TLS 1.2 & 1.1. |
668 | Bugzilla 1156. | |
89f897c3 PP |
669 | Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler]. |
670 | Bugzilla 1095. | |
c566dd90 | 671 | |
d6cc7c78 | 672 | PP/11 match_* no longer expand right-hand-side by default. |
39257585 PP |
673 | New compile-time build option, EXPAND_LISTMATCH_RHS. |
674 | New expansion conditions, "inlist", "inlisti". | |
675 | ||
0d0e4455 PP |
676 | PP/12 fix uninitialised greeting string from PP/03 (smtps client support). |
677 | ||
3399bb60 | 678 | PP/13 shell and compiler warnings fixes for RC1-RC4 changes. |
d690cbdc PP |
679 | |
680 | PP/14 fix log_write() format string regression from TF/03. | |
681 | Bugzilla 1152. Patch from Dmitry Isaikin. | |
682 | ||
0ca0cf52 | 683 | |
10906672 PP |
684 | Exim version 4.76 |
685 | ----------------- | |
686 | ||
687 | PP/01 The new ldap_require_cert option would segfault if used. Fixed. | |
688 | ||
754a0503 PP |
689 | PP/02 Harmonised TLS library version reporting; only show if debugging. |
690 | Layout now matches that introduced for other libraries in 4.74 PP/03. | |
691 | ||
c0c7b2da PP |
692 | PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1 |
693 | ||
e97d1f08 PP |
694 | PP/04 New "dns_use_edns0" global option. |
695 | ||
084c1d8c PP |
696 | PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid. |
697 | Bugzilla 1098. | |
698 | ||
4e7ee012 PP |
699 | PP/06 Extra paranoia around buffer usage at the STARTTLS transition. |
700 | nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316 | |
da80c2a8 | 701 | |
c8d52a00 PP |
702 | TK/01 Updated PolarSSL code to 0.14.2. |
703 | Bugzilla 1097. Patch from Andreas Metzler. | |
704 | ||
54e7ce4a PP |
705 | PP/07 Catch divide-by-zero in ${eval:...}. |
706 | Fixes bugzilla 1102. | |
707 | ||
5ee6f336 PP |
708 | PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed. |
709 | Bugzilla 1104. | |
710 | ||
c8d52a00 | 711 | TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a |
6ea4a851 PP |
712 | format-string attack -- SECURITY: remote arbitrary code execution. |
713 | ||
714 | TK/03 SECURITY - DKIM signature header parsing was double-expanded, second | |
715 | time unintentionally subject to list matching rules, letting the header | |
716 | cause arbitrary Exim lookups (of items which can occur in lists, *not* | |
717 | arbitrary string expansion). This allowed for information disclosure. | |
718 | ||
719 | PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to | |
720 | INT_MIN/-1 -- value coerced to INT_MAX. | |
c8d52a00 | 721 | |
10906672 | 722 | |
aa097c4c NM |
723 | Exim version 4.75 |
724 | ----------------- | |
725 | ||
4c9ef03a | 726 | NM/01 Workround for PCRE version dependency in version reporting |
aa097c4c NM |
727 | Bugzilla 1073 |
728 | ||
7f3d9eff TF |
729 | TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0. |
730 | This fixes portability to compilers other than gcc, notably | |
731 | Solaris CC and HP-UX CC. Fixes Bugzilla 1050. | |
732 | ||
159f52d2 TF |
733 | TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup |
734 | makefiles for portability to HP-UX and POSIX correctness. | |
735 | ||
0cc9542a PP |
736 | PP/01 Permit LOOKUP_foo enabling on the make command-line. |
737 | Also via indented variable definition in the Makefile. | |
738 | (Debugging by Oliver Heesakkers). | |
739 | ||
f7274286 PP |
740 | PP/02 Restore caching of spamd results with expanded spamd_address. |
741 | Patch from author of expandable spamd_address patch, Wolfgang Breyha. | |
742 | ||
7b797365 PP |
743 | PP/03 Build issue: lookups-Makefile now exports LC_ALL=C |
744 | Improves build reliability. Fix from: Frank Elsner | |
745 | ||
caacae52 NM |
746 | NM/02 Fix wide character breakage in the rfc2047 coding |
747 | Fixes bug 1064. Patch from Andrey N. Oktyabrski | |
748 | ||
09dcaba9 NM |
749 | NM/03 Allow underscore in dnslist lookups |
750 | Fixes bug 1026. Patch from Graeme Fowler | |
751 | ||
bc19a55b PP |
752 | PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps). |
753 | Code patches from Adam Ciarcinski of NetBSD. | |
caacae52 | 754 | |
bd4c9759 NM |
755 | NM/04 Fixed exiqgrep to cope with mailq missing size issue |
756 | Fixes bug 943. | |
757 | ||
b72aab72 PP |
758 | PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which |
759 | is logged, to avoid truncation. Patch from John Horne. | |
760 | ||
2fe76745 PP |
761 | PP/06 Bugzilla 1042: implement freeze_signal on pipe transports. |
762 | Patch from Jakob Hirsch. | |
763 | ||
76aa570c PP |
764 | PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal |
765 | SQL string expansion failure details. | |
766 | Patch from Andrey Oktyabrski. | |
767 | ||
f1e5fef5 PP |
768 | PP/08 Bugzilla 486: implement %M datestamping in log filenames. |
769 | Patch from Simon Arlott. | |
770 | ||
4d805ee9 PP |
771 | PP/09 New lookups functionality failed to compile on old gcc which rejects |
772 | extern declarations in function scope. | |
773 | Patch from Oliver Fleischmann | |
774 | ||
cd59ab18 PP |
775 | PP/10 Use sig_atomic_t for flags set from signal handlers. |
776 | Check getgroups() return and improve debugging. | |
777 | Fixed developed for diagnosis in bug 927 (which turned out to be | |
778 | a kernel bug). | |
779 | ||
332f5cf3 PP |
780 | PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag. |
781 | Patch from Mark Zealey. | |
782 | ||
29cfeb94 PP |
783 | PP/12 Bugzilla 1056: Improved spamd server selection. |
784 | Patch from Mark Zealey. | |
785 | ||
660242ad PP |
786 | PP/13 Bugzilla 1086: Deal with maildir quota file races. |
787 | Based on patch from Heiko Schlittermann. | |
788 | ||
bc4bc4c5 PP |
789 | PP/14 Bugzilla 1019: DKIM multiple signature generation fix. |
790 | Patch from Uwe Doering, sign-off by Michael Haardt. | |
791 | ||
2e64baa9 NM |
792 | NM/05 Fix to spam.c to accommodate older gcc versions which dislike |
793 | variable declaration deep within a block. Bug and patch from | |
794 | Dennis Davis. | |
795 | ||
bddd7526 PP |
796 | PP/15 lookups-Makefile IRIX compatibilty coercion. |
797 | ||
6bac1a9a PP |
798 | PP/16 Make DISABLE_DKIM build knob functional. |
799 | ||
552193f0 NM |
800 | NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler |
801 | Patch by Simon Arlott | |
baeee2c1 | 802 | |
1b587e48 TF |
803 | TF/03 Fix valgrind.h portability to C89 compilers that do not support |
804 | variable argument macros. Our copy now differs from upstream. | |
805 | ||
aa097c4c | 806 | |
8c07b69f TF |
807 | Exim version 4.74 |
808 | ----------------- | |
809 | ||
810 | TF/01 Failure to get a lock on a hints database can have serious | |
811 | consequences so log it to the panic log. | |
812 | ||
c0ea85ab TF |
813 | TF/02 Log LMTP confirmation messages in the same way as SMTP, |
814 | controlled using the smtp_confirmation log selector. | |
815 | ||
0761d44e TF |
816 | TF/03 Include the error message when we fail to unlink a spool file. |
817 | ||
0a349494 PP |
818 | DW/01 Bugzilla 139: Support dynamically loaded lookups as modules. |
819 | With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux | |
820 | for maintaining out-of-tree patches for some time. | |
821 | ||
822 | PP/01 Bugzilla 139: Documentation and portability issues. | |
823 | Avoid GNU Makefile-isms, let Exim continue to build on BSD. | |
824 | Handle per-OS dynamic-module compilation flags. | |
825 | ||
fea24b2e PP |
826 | PP/02 Let /dev/null have normal permissions. |
827 | The 4.73 fixes were a little too stringent and complained about the | |
828 | permissions on /dev/null. Exempt it from some checks. | |
829 | Reported by Andreas M. Kirchwitz. | |
830 | ||
6545de78 PP |
831 | PP/03 Report version information for many libraries, including |
832 | Exim version information for dynamically loaded libraries. Created | |
833 | version.h, now support a version extension string for distributors | |
834 | who patch heavily. Dynamic module ABI change. | |
835 | ||
1670ef10 PP |
836 | PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a |
837 | privilege escalation vulnerability whereby the Exim run-time user | |
838 | can cause root to append content of the attacker's choosing to | |
839 | arbitrary files. | |
840 | ||
c0886197 PP |
841 | PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code. |
842 | (Wolfgang Breyha) | |
843 | ||
b7487bce PP |
844 | PP/06 Bugzilla 1071: fix delivery logging with untrusted macros. |
845 | If dropping privileges for untrusted macros, we disabled normal logging | |
846 | on the basis that it would fail; for the Exim run-time user, this is not | |
847 | the case, and it resulted in successful deliveries going unlogged. | |
848 | Fixed. Reported by Andreas Metzler. | |
849 | ||
8c07b69f | 850 | |
97fd1e48 | 851 | Exim version 4.73 |
ed7f7860 | 852 | ----------------- |
97fd1e48 PP |
853 | |
854 | PP/01 Date: & Message-Id: revert to normally being appended to a message, | |
855 | only prepend for the Resent-* case. Fixes regression introduced in | |
856 | Exim 4.70 by NM/22 for Bugzilla 607. | |
857 | ||
6901c596 PP |
858 | PP/02 Include check_rfc2047_length in configure.default because we're seeing |
859 | increasing numbers of administrators be bitten by this. | |
860 | ||
a8c8d6b5 JJ |
861 | JJ/01 Added DISABLE_DKIM and comment to src/EDITME |
862 | ||
77bb000f PP |
863 | PP/03 Bugzilla 994: added openssl_options main configuration option. |
864 | ||
a29e5231 PP |
865 | PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads. |
866 | ||
ec5a0394 | 867 | PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports. |
a29e5231 | 868 | |
55c75993 PP |
869 | PP/06 Adjust NTLM authentication to handle SASL Initial Response. |
870 | ||
453a6645 | 871 | PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but |
ec5a0394 PP |
872 | without a peer certificate, leading to a segfault because of an |
873 | assumption that peers always have certificates. Be a little more | |
453a6645 PP |
874 | paranoid. Problem reported by Martin Tscholak. |
875 | ||
8544e77a PP |
876 | PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content |
877 | filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes | |
878 | NB: ClamAV planning to remove STREAM in "middle of 2010". | |
3346ab01 PP |
879 | CL also introduces -bmalware, various -d+acl logging additions and |
880 | more caution in buffer sizes. | |
8544e77a | 881 | |
83e029d5 PP |
882 | PP/09 Implemented reverse_ip expansion operator. |
883 | ||
ed7f7860 PP |
884 | PP/10 Bugzilla 937: provide a "debug" ACL control. |
885 | ||
7d9f747b PP |
886 | PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne. |
887 | ||
4b2241d2 PP |
888 | PP/12 Bugzilla 973: Implement --version. |
889 | ||
10385c15 PP |
890 | PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0. |
891 | ||
dbc4b90d PP |
892 | PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler. |
893 | ||
532be449 PP |
894 | PP/15 Bugzilla 816: support multiple condition rules on Routers. |
895 | ||
6a8de854 | 896 | PP/16 Add bool_lax{} expansion operator and use that for combining multiple |
71265ae9 PP |
897 | condition rules, instead of bool{}. Make both bool{} and bool_lax{} |
898 | ignore trailing whitespace. | |
6a8de854 | 899 | |
5dc43717 JJ |
900 | JJ/02 prevent non-panic DKIM error from being sent to paniclog |
901 | ||
902 | JJ/03 added tcp_wrappers_daemon_name to allow host entries other than | |
903 | "exim" to be used | |
55c75993 | 904 | |
3346ab01 PP |
905 | PP/17 Fix malware regression for cmdline scanner introduced in PP/08. |
906 | Notification from Dr Andrew Aitchison. | |
907 | ||
491fab4c PP |
908 | PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's |
909 | ExtendedDetectionInfo response format. | |
910 | Notification from John Horne. | |
911 | ||
13eb9497 PP |
912 | PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards |
913 | compatible. | |
914 | ||
915 | PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http: | |
916 | XSL and documented dependency on system catalogs, with examples of how | |
917 | it normally works. | |
918 | ||
7f36d675 DW |
919 | DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store |
920 | access. | |
921 | ||
c1d94452 DW |
922 | DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour |
923 | of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a | |
924 | configuration file which is writeable by the Exim user or group. | |
925 | ||
e2f5dc15 DW |
926 | DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability |
927 | of configuration files to cover files specified with the -C option if | |
928 | they are going to be used with root privileges, not just the default | |
929 | configuration file. | |
930 | ||
cd25e41d DW |
931 | DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY |
932 | option (effectively making it always true). | |
933 | ||
261dc43e DW |
934 | DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration |
935 | files to be used while preserving root privileges. | |
936 | ||
fa32850b DW |
937 | DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure |
938 | that rogue child processes cannot use them. | |
939 | ||
79d4bc3d PP |
940 | PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim |
941 | run-time user, instead of root. | |
942 | ||
43236f35 | 943 | PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the |
2cfd3221 PP |
944 | Exim run-time user without dropping privileges. |
945 | ||
fb08281f DW |
946 | DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the |
947 | result string, instead of calling string_vformat() twice with the same | |
948 | arguments. | |
3346ab01 | 949 | |
74935b98 DW |
950 | DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not |
951 | for other users. Others should always drop root privileges if they use | |
952 | -C on the command line, even for a whitelisted configure file. | |
953 | ||
90b6341f DW |
954 | DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes. |
955 | ||
57730b52 ML |
956 | NM/01 Fixed bug #1002 - Message loss when using multiple deliveries |
957 | ||
66581d1e | 958 | |
465e92cf JJ |
959 | Exim version 4.72 |
960 | ----------------- | |
961 | ||
453a6645 PP |
962 | JJ/01 installed exipick 20100104.1, adding $max_received_linelength, |
963 | $data_path, and $header_path variables; fixed documentation bugs and | |
964 | typos | |
465e92cf | 965 | |
453a6645 PP |
966 | JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow |
967 | exipick to access non-standard spools, including the "frozen" queue | |
968 | (Finput) | |
edae0343 | 969 | |
9bd3e22c NM |
970 | NM/01 Bugzilla 965: Support mysql stored procedures. |
971 | Patch from Alain Williams | |
972 | ||
bb576ff7 NM |
973 | NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD |
974 | ||
5a1a5845 NM |
975 | NM/03 Bugzilla 955: Documentation fix for max_rcpts. |
976 | Patch from Andreas Metzler | |
977 | ||
981a9fad NM |
978 | NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator. |
979 | Patch from Kirill Miazine | |
980 | ||
7fc497ee NM |
981 | NM/05 Bugzilla 671: Added umask to procmail example. |
982 | ||
1a41defa JJ |
983 | JJ/03 installed exipick 20100323.0, fixing doc bug |
984 | ||
a466095c | 985 | NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail |
b26eacf1 | 986 | directory. Notification and patch from Dan Rosenberg. |
a466095c | 987 | |
94a6bd0b NM |
988 | TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1. |
989 | ||
990 | TK/02 Improve log output when DKIM signing operation fails. | |
991 | ||
992 | MH/01 Treat the transport option dkim_domain as a colon separated | |
993 | list, not as a single string, and sign the message with each element, | |
994 | omitting multiple occurences of the same signer. | |
995 | ||
c1b141a8 NM |
996 | NM/07 Null terminate DKIM strings, Null initialise DKIM variable |
997 | Bugzilla 985, 986. Patch by Simon Arlott | |
94a6bd0b | 998 | |
b26eacf1 | 999 | NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related) |
0d0c6357 NM |
1000 | Patch by Simon Arlott |
1001 | ||
179c5980 | 1002 | PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on |
b26eacf1 | 1003 | MBX locking. Notification from Dan Rosenberg. |
179c5980 | 1004 | |
9bd3e22c | 1005 | |
7c6d71af NM |
1006 | Exim version 4.71 |
1007 | ----------------- | |
1008 | ||
7d9f747b | 1009 | TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body. |
7c6d71af | 1010 | |
f013fb92 NM |
1011 | NM/01 Bugzilla 913: Documentation fix for gnutls_* options. |
1012 | ||
0eb8eedd NM |
1013 | NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults. |
1014 | ||
663ee6d9 NM |
1015 | NM/03 Bugzilla 847: Enable DNSDB lookup by default. |
1016 | ||
177ebd9b NM |
1017 | NM/04 Bugzilla 915: Flag broken perl installation during build. |
1018 | ||
7c6d71af | 1019 | |
210f147e NM |
1020 | Exim version 4.70 |
1021 | ----------------- | |
1022 | ||
cdd3bb85 | 1023 | TK/01 Added patch by Johannes Berg that expands the main option |
e739e3d9 | 1024 | "spamd_address" if it starts with a dollar sign. |
cdd3bb85 TK |
1025 | |
1026 | TK/02 Write list of recipients to X-Envelope-Sender header when building | |
1027 | the mbox-format spool file for content scanning (suggested by Jakob | |
7d9f747b | 1028 | Hirsch). |
cdd3bb85 TK |
1029 | |
1030 | TK/03 Added patch by Wolfgang Breyha that adds experimental DCC | |
1031 | (http://www.dcc-servers.net/) support via dccifd. Activated by | |
e739e3d9 | 1032 | setting EXPERIMENTAL_DCC=yes in Local/Makefile. |
cdd3bb85 TK |
1033 | |
1034 | TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted | |
1035 | by Mark Daniel Reidel <mr@df.eu>. | |
1036 | ||
210f147e NM |
1037 | NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree. |
1038 | When building exim an external PCRE library is now needed - | |
1039 | PCRE is a system library on the majority of modern systems. | |
1040 | See entry on PCRE_LIBS in EDITME file. | |
1041 | ||
deafd5b3 NM |
1042 | NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator |
1043 | conversation. Added nologin parameter to request. | |
7d9f747b | 1044 | Patch contributed by Kirill Miazine. |
deafd5b3 | 1045 | |
089793a4 TF |
1046 | TF/01 Do not log submission mode rewrites if they do not change the address. |
1047 | ||
5f16ca82 TF |
1048 | TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c. |
1049 | ||
dae9d94e | 1050 | NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty |
7d9f747b | 1051 | log files in place. Contributed by Roberto Lima. |
dae9d94e | 1052 | |
7d9f747b | 1053 | NM/04 Bugzilla 667: Close socket used by dovecot authenticator. |
3f0da4d0 | 1054 | |
06864c44 TF |
1055 | TF/03 Bugzilla 615: When checking the local_parts router precondition |
1056 | after a local_part_suffix or local_part_prefix option, Exim now | |
1057 | does not use the address's named list lookup cache, since this | |
1058 | contains cached lookups for the whole local part. | |
1059 | ||
65a7d8c3 | 1060 | NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by |
7d9f747b | 1061 | Robert Millan. Documentation is in experimental-spec.txt. |
65a7d8c3 | 1062 | |
23510047 | 1063 | TF/04 Bugzilla 668: Fix parallel build (make -j). |
65a7d8c3 | 1064 | |
7d9f747b | 1065 | NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000. |
5f28a6e8 | 1066 | |
7d8eec3a | 1067 | NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling. |
7d9f747b | 1068 | Patch provided by Jan Srzednicki. |
6c588e74 | 1069 | |
89dec7b6 TF |
1070 | TF/05 Leading white space used to be stripped from $spam_report which |
1071 | wrecked the formatting. Now it is preserved. | |
5f28a6e8 | 1072 | |
a99de90c TF |
1073 | TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so |
1074 | that they are available at delivery time. | |
1075 | ||
e2803e40 TF |
1076 | TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional. |
1077 | ||
7199e1ee TF |
1078 | TF/08 TLS error reporting now respects the incoming_interface and |
1079 | incoming_port log selectors. | |
1080 | ||
e276e04b TF |
1081 | TF/09 Produce a more useful error message if an SMTP transport's hosts |
1082 | setting expands to an empty string. | |
1083 | ||
ce552449 | 1084 | NM/06 Bugzilla 744: EXPN did not work under TLS. |
7d9f747b | 1085 | Patch provided by Phil Pennock. |
ce552449 | 1086 | |
e765a0f1 | 1087 | NM/07 Bugzilla 769: Extraneous comma in usage fprintf |
7d9f747b | 1088 | Patch provided by Richard Godbee. |
e765a0f1 | 1089 | |
4f054c63 | 1090 | NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be |
447de4b0 | 1091 | acl_smtp_notquit, added index entry. |
4f054c63 | 1092 | |
7d9f747b PP |
1093 | NM/09 Bugzilla 787: Potential buffer overflow in string_format. |
1094 | Patch provided by Eugene Bujak. | |
24c929a2 | 1095 | |
7d9f747b PP |
1096 | NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to |
1097 | accept(). Patch provided by Maxim Dounin. | |
cf73943b | 1098 | |
b52bc06e | 1099 | NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero. |
7d9f747b | 1100 | Patch provided by Phil Pennock. |
b52bc06e | 1101 | |
447de4b0 NM |
1102 | NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists. |
1103 | ||
4c69d561 | 1104 | NM/13 Bugzilla 590: Correct handling of Resent-Date headers. |
7d9f747b | 1105 | Patch provided by Brad "anomie" Jorsch. |
4c69d561 | 1106 | |
d5c39246 | 1107 | NM/14 Bugzilla 622: Added timeout setting to transport filter. |
7d9f747b | 1108 | Patch provided by Dean Brooks. |
9b989985 | 1109 | |
0b23848a TK |
1110 | TK/05 Add native DKIM support (does not depend on external libraries). |
1111 | ||
8f3414a1 | 1112 | NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful. |
7d9f747b | 1113 | Patch provided by Graeme Fowler. |
e2aacdfd | 1114 | |
fb6f955d NM |
1115 | NM/16 Bugzilla 851: Documentation example syntax fix. |
1116 | ||
1117 | NM/17 Changed NOTICE file to remove references to embedded PCRE. | |
8f3414a1 | 1118 | |
7d9f747b PP |
1119 | NM/18 Bugzilla 894: Fix issue with very long lines including comments in |
1120 | lsearch. | |
dbb0bf41 | 1121 | |
7d9f747b PP |
1122 | NM/19 Bugzilla 745: TLS version reporting. |
1123 | Patch provided by Phil Pennock. | |
f3766eb5 | 1124 | |
7d9f747b PP |
1125 | NM/20 Bugzilla 167: bool: condition support. |
1126 | Patch provided by Phil Pennock. | |
36f12725 | 1127 | |
7d9f747b PP |
1128 | NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken |
1129 | clients. Patch provided by Phil Pennock. | |
e6060e2c | 1130 | |
7d9f747b PP |
1131 | NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date. |
1132 | Patch provided by Brad "anomie" Jorsch. | |
5eb690a1 | 1133 | |
7d9f747b PP |
1134 | NM/23 Bugzilla 687: Fix misparses in eximstats. |
1135 | Patch provided by Heiko Schlittermann. | |
d5c13d66 | 1136 | |
7d9f747b PP |
1137 | NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid. |
1138 | Patch provided by Heiko Schlittermann. | |
b2335c0b | 1139 | |
7d9f747b | 1140 | NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file. |
1da77999 | 1141 | plus update to original patch. |
f4cd9433 | 1142 | |
7d9f747b | 1143 | NM/26 Bugzilla 799: Documentation correction for ratelimit. |
dc988b7e | 1144 | |
7d9f747b PP |
1145 | NM/27 Bugzilla 802: Improvements to local interface IP addr detection. |
1146 | Patch provided by David Brownlee. | |
8dc71ab3 | 1147 | |
7d9f747b | 1148 | NM/28 Bugzilla 807: Improvements to LMTP delivery logging. |
400eda43 | 1149 | |
7d9f747b | 1150 | NM/29 Bugzilla 862, 866, 875: Documentation bugfixes. |
ec5a421b | 1151 | |
7d9f747b | 1152 | NM/30 Bugzilla 888: TLS documentation bugfixes. |
07af267e | 1153 | |
7d9f747b | 1154 | NM/31 Bugzilla 896: Dovecot buffer overrun fix. |
51473862 | 1155 | |
17792b53 | 1156 | NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --" |
7d9f747b | 1157 | Unlike the original bugzilla I have changed all shell scripts in src tree. |
17792b53 | 1158 | |
7d9f747b PP |
1159 | NM/33 Bugzilla 898: Transport filter timeout fix. |
1160 | Patch by Todd Rinaldo. | |
52383f8f | 1161 | |
91576cec | 1162 | NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches. |
7d9f747b | 1163 | Patch by Serge Demonchaux. |
5ca6d115 | 1164 | |
7d9f747b PP |
1165 | NM/35 Bugzilla 39: Base64 decode bug fixes. |
1166 | Patch by Jakob Hirsch. | |
baee9eee | 1167 | |
7d9f747b | 1168 | NM/36 Bugzilla 909: Correct connect() call in dcc code. |
e93a964c | 1169 | |
7d9f747b | 1170 | NM/37 Bugzilla 910: Correct issue with relaxed/simple handling. |
9bf3d68f | 1171 | |
7d9f747b | 1172 | NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed. |
96535b98 | 1173 | |
7d9f747b | 1174 | NM/39 Bugzilla 911: Fixed MakeLinks build script. |
30339e0f | 1175 | |
deafd5b3 | 1176 | |
47db1125 NM |
1177 | Exim version 4.69 |
1178 | ----------------- | |
1179 | ||
4b3504d0 TK |
1180 | TK/01 Add preliminary DKIM support. Currently requires a forked version of |
1181 | ALT-N's libdkim that I have put here: | |
1182 | http://duncanthrax.net/exim-experimental/ | |
1183 | ||
1184 | Note to Michael Haardt: I had to rename some vars in sieve.c. They | |
1185 | were called 'true' and it seems that C99 defines that as a reserved | |
1186 | keyword to be used with 'bool' variable types. That means you could | |
1187 | not include C99-style headers which use bools without triggering | |
1188 | build errors in sieve.c. | |
1189 | ||
81ea09ca NM |
1190 | NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked |
1191 | as mailq or other aliases. Changed the --help handling significantly | |
1192 | to do whats expected. exim_usage() emits usage/help information. | |
1193 | ||
f13cddcb SC |
1194 | SC/01 Added the -bylocaldomain option to eximstats. |
1195 | ||
7d9f747b | 1196 | NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr. |
8ad076b2 | 1197 | |
7d9f747b | 1198 | NM/03 Bugzilla 613: Documentation fix for acl_not_smtp. |
a843aaa6 | 1199 | |
7d9f747b | 1200 | NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall). |
47db1125 NM |
1201 | |
1202 | ||
eb4c0de6 PH |
1203 | Exim version 4.68 |
1204 | ----------------- | |
1205 | ||
1206 | PH/01 Another patch from the Sieve maintainer. | |
1207 | ||
6a3bceb1 PH |
1208 | PH/02 When an IPv6 address is converted to a string for single-key lookup |
1209 | in an address list (e.g. for an item such as "net24-dbm;/net/works"), | |
1210 | dots are used instead of colons so that keys in lsearch files need not | |
1211 | contain colons. This was done some time before quoting was made available | |
1212 | in lsearch files. However, iplsearch files do require colons in IPv6 keys | |
1213 | (notated using the quote facility) so as to distinguish them from IPv4 | |
1214 | keys. This meant that lookups for IP addresses in host lists did not work | |
1215 | for iplsearch lookups. | |
1216 | ||
1217 | This has been fixed by arranging for IPv6 addresses to be expressed with | |
1218 | colons if the lookup type is iplsearch. This is not incompatible, because | |
1219 | previously such lookups could never work. | |
1220 | ||
1221 | The situation is now rather anomolous, since one *can* have colons in | |
1222 | ordinary lsearch keys. However, making the change in all cases is | |
1223 | incompatible and would probably break a number of configurations. | |
1224 | ||
2e30fa9d TK |
1225 | TK/01 Change PRVS address formatting scheme to reflect latests BATV draft |
1226 | version. | |
1227 | ||
0806a9c5 MH |
1228 | MH/01 The "spam" ACL condition code contained a sscanf() call with a %s |
1229 | conversion specification without a maximum field width, thereby enabling | |
1230 | a rogue spamd server to cause a buffer overflow. While nobody in their | |
1231 | right mind would setup Exim to query an untrusted spamd server, an | |
1232 | attacker that gains access to a server running spamd could potentially | |
1233 | exploit this vulnerability to run arbitrary code as the Exim user. | |
1234 | ||
ae276964 TK |
1235 | TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use |
1236 | $primary_hostname instead of what libspf2 thinks the hosts name is. | |
1237 | ||
0f2cbd1b MH |
1238 | MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for |
1239 | a directory entry by the name of the lookup key. Previously, if a | |
1240 | symlink pointed to a non-existing file or a file in a directory that | |
1241 | Exim lacked permissions to read, a lookup for a key matching that | |
1242 | symlink would fail. Now it is enough that a matching directory entry | |
1243 | exists, symlink or not. (Bugzilla 503.) | |
1244 | ||
2b85bce7 PH |
1245 | PH/03 The body_linecount and body_zerocount variables are now exported in the |
1246 | local_scan API. | |
1247 | ||
93655c46 PH |
1248 | PH/04 Added the $dnslist_matched variable. |
1249 | ||
6c512171 PH |
1250 | PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client. |
1251 | This means they are set thereafter only if the connection becomes | |
1252 | encrypted. | |
1253 | ||
1254 | PH/06 Added the client_condition to authenticators so that some can be skipped | |
1255 | by clients under certain conditions. | |
1256 | ||
aa6dc513 PH |
1257 | PH/07 The error message for a badly-placed control=no_multiline_responses left |
1258 | "_responses" off the end of the name. | |
1259 | ||
a96603a0 PH |
1260 | PH/08 Added -Mvc to output a copy of a message in RFC 2822 format. |
1261 | ||
8f240103 PH |
1262 | PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly |
1263 | (without spaces) instead of just copying the configuration text. | |
1264 | ||
1265 | PH/10 Added the /noupdate option to the ratelimit ACL condition. | |
1266 | ||
d677b2f2 PH |
1267 | PH/11 Added $max_received_linelength. |
1268 | ||
d52120f2 PH |
1269 | PH/12 Added +ignore_defer and +include_defer to host lists. |
1270 | ||
64f2600a PH |
1271 | PH/13 Installed PCRE version 7.2. This needed some changes because of the new |
1272 | way in which PCRE > 7.0 is built. | |
1273 | ||
8669f003 PH |
1274 | PH/14 Implemented queue_only_load_latch. |
1275 | ||
a4dc33a8 PH |
1276 | PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a |
1277 | MAIL command. The effect was to mangle the value on 64-bit systems. | |
1278 | ||
d6a60c0f PH |
1279 | PH/16 Another patch from the Sieve maintainer. |
1280 | ||
8f128379 PH |
1281 | PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper. |
1282 | ||
8932dffe PH |
1283 | PH/18 If a system quota error occurred while trying to create the file for |
1284 | a maildir delivery, the message "Mailbox is full" was not appended to the | |
1285 | bounce if the delivery eventually timed out. Change 4.67/27 below applied | |
1286 | only to a quota excession during the actual writing of the file. | |
d6a60c0f | 1287 | |
ddea74fa | 1288 | PH/19 It seems that peer DN values may contain newlines (and other non-printing |
48ed62d9 PH |
1289 | characters?) which causes problems in log lines. The DN values are now |
1290 | passed through string_printing() before being added to log lines. | |
1291 | ||
ddea74fa | 1292 | PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle |
b7670459 PH |
1293 | and InterBase are left for another time.) |
1294 | ||
ddea74fa PH |
1295 | PH/21 Added message_body_newlines option. |
1296 | ||
ce9f225c PH |
1297 | PH/22 Guard against possible overflow in moan_check_errorcopy(). |
1298 | ||
19897d52 PH |
1299 | PH/23 POSIX allows open() to be a macro; guard against that. |
1300 | ||
bc64a74d PH |
1301 | PH/24 If the recipient of an error message contained an @ in the local part |
1302 | (suitably quoted, of course), incorrect values were put in $domain and | |
1303 | $local_part during the evaluation of errors_copy. | |
1304 | ||
eb4c0de6 | 1305 | |
b4ed4da0 PH |
1306 | Exim version 4.67 |
1307 | ----------------- | |
1308 | ||
22ad45c9 MH |
1309 | MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address |
1310 | is unset (happens when testing with -bh and -oMi isn't used). Thanks to | |
1311 | Jan Srzednicki. | |
1312 | ||
b4ed4da0 PH |
1313 | PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not |
1314 | issue a MAIL command. | |
1315 | ||
431b7361 PH |
1316 | PH/02 In an ACL statement such as |
1317 | ||
1318 | deny dnslists = X!=127.0.0.2 : X=127.0.0.2 | |
1319 | ||
1320 | if a client was not listed at all, or was listed with a value other than | |
1321 | 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list, | |
1322 | the condition was not true (as it should be), so access was not denied. | |
1323 | The bug was that the ! inversion was incorrectly passed on to the second | |
1324 | item. This has been fixed. | |
1325 | ||
1326 | PH/03 Added additional dnslists conditions == and =& which are different from | |
1327 | = and & when the dns lookup returns more than one IP address. | |
1328 | ||
83da1223 PH |
1329 | PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the |
1330 | cipher suites used by GnuTLS. These options are ignored by OpenSSL. | |
1331 | ||
54fc8428 PH |
1332 | PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_ |
1333 | FSYNC, which compiles an option called disable_fsync that allows for | |
1334 | bypassing fsync(). The documentation is heavily laced with warnings. | |
1335 | ||
34c5e8dd SC |
1336 | SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket. |
1337 | ||
bbe15da8 PH |
1338 | PH/06 Some tidies to the infrastructure of the Test Suite that is concerned |
1339 | with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT | |
1340 | to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile, | |
1341 | including adding "make clean"; (3) Added -fPIC when compiling the test | |
1342 | dynamically loaded module, to get rid of a warning. | |
1343 | ||
0e8a9471 MH |
1344 | MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce |
1345 | message fails, move_frozen_messages = true and ignore_bounce_errors_after | |
1346 | = 0s. The bug is otherwise harmless. | |
1347 | ||
f0872424 PH |
1348 | PH/07 There was a bug in the dovecot authenticator such that the value of |
1349 | $auth1 could be overwritten, and so not correctly preserved, after a | |
1350 | successful authentication. This usually meant that the value preserved by | |
1351 | the server_setid option was incorrect. | |
1352 | ||
b01dd148 PH |
1353 | PH/08 Added $smtp_count_at_connection_start, deliberately with a long name. |
1354 | ||
6bf342e1 PH |
1355 | PH/09 Installed PCRE release 7.0. |
1356 | ||
273f34d0 PH |
1357 | PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being |
1358 | run for batched SMTP input. It is now run at the start of every message | |
1359 | in the batch. While fixing this I discovered that the process information | |
1360 | (output by running exiwhat) was not always getting set for -bs and -bS | |
1361 | input. This is fixed, and it now also says "batched" for BSMTP. | |
1362 | ||
cf8b11a5 PH |
1363 | PH/11 Added control=no_pipelining. |
1364 | ||
41c7c167 PH |
1365 | PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's |
1366 | patch, slightly modified), and move the expansion of helo_data till after | |
1367 | the connection is made in the smtp transport (so it can use these | |
1368 | values). | |
1369 | ||
9c57cbc0 PH |
1370 | PH/13 Added ${rfc2047d: to decoded RFC 2047 strings. |
1371 | ||
f3f065bb PH |
1372 | PH/14 Added log_selector = +pid. |
1373 | ||
047bdd8c PH |
1374 | PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set. |
1375 | ||
0ce9abe6 PH |
1376 | PH/16 Add ${if forany and ${if forall. |
1377 | ||
0e22dfd1 PH |
1378 | PH/17 Added dsn_from option to vary the From: line in DSNs. |
1379 | ||
4c590bd1 PH |
1380 | PH/18 Flush SMTP output before performing a callout, unless control = |
1381 | no_callout_flush is set. | |
1382 | ||
09945f1e PH |
1383 | PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender |
1384 | was true (the default) a successful delivery failed to delete the retry | |
1385 | item, thus causing premature timeout of the address. The bug is now | |
1386 | fixed. | |
1387 | ||
c51b8e75 PH |
1388 | PH/20 Added hosts_avoid_pipelining to the smtp transport. |
1389 | ||
e28326d8 PH |
1390 | PH/21 Long custom messages for fakedefer and fakereject are now split up |
1391 | into multiline reponses in the same way that messages for "deny" and | |
1392 | other ACL rejections are. | |
1393 | ||
75b1493f PH |
1394 | PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep, |
1395 | with slight modification. | |
1396 | ||
7c5214ec PH |
1397 | PH/23 Applied sieve patches from the maintainer "tracking the latest notify |
1398 | draft, changing the syntax and factoring some duplicate code". | |
1399 | ||
4311097e PH |
1400 | PH/24 When the log selector "outgoing_port" was set, the port was shown as -1 |
1401 | for deliveries of the second and subsequent messages over the same SMTP | |
1402 | connection. | |
1403 | ||
29f89cad PH |
1404 | PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and |
1405 | ${reduce, with only minor "tidies". | |
1406 | ||
5e687460 SC |
1407 | SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match. |
1408 | ||
c3611384 PH |
1409 | PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its |
1410 | expansion side effects. | |
1411 | ||
5a11a7b4 PH |
1412 | PH/27 When a message times out after an over-quota error from an Exim-imposed |
1413 | quota, the bounce message says "mailbox is full". This message was not | |
1414 | being given when it was a system quota that was exceeded. It now should | |
1415 | be the same. | |
1416 | ||
0e20aff9 MH |
1417 | MH/03 Made $recipients available in local_scan(). local_scan() already has |
1418 | better access to the recipient list through recipients_list[], but | |
1419 | $recipients can be useful in postmaster-provided expansion strings. | |
1420 | ||
ca86f471 PH |
1421 | PH/28 The $smtp_command and $smtp_command_argument variables were not correct |
1422 | in the case of a MAIL command with additional options following the | |
1423 | address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings | |
1424 | were accidentally chopped off. | |
1425 | ||
a14e5636 PH |
1426 | PH/29 SMTP synchronization checks are implemented when a command is read - |
1427 | there is a check that no more input is waiting when there shouldn't be | |
1428 | any. However, for some commands, a delay in an ACL can mean that it is | |
1429 | some time before the response is written. In this time, more input might | |
1430 | arrive, invalidly. So now there are extra checks after an ACL has run for | |
1431 | HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when | |
1432 | pipelining has not been advertised. | |
1433 | ||
ec95d1a6 PH |
1434 | PH/30 MH's patch to allow iscntrl() characters to be list separators. |
1435 | ||
42855d71 PH |
1436 | PH/31 Unlike :fail:, a custom message specified with :defer: was not being |
1437 | returned in the SMTP response when smtp_return_error_details was false. | |
1438 | This has been fixed. | |
1439 | ||
57c2c631 PH |
1440 | PH/32 Change the Dovecot authenticator to use read() and write() on the socket |
1441 | instead of the C I/O that was originally supplied, because problems were | |
1442 | reported on Solaris. | |
1443 | ||
58c01c94 PH |
1444 | PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in |
1445 | Exim which did not show up earlier: it was assuming that a call to | |
1446 | SSL_CTX_set_info_callback() might give an error value. In fact, there is | |
1447 | no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback() | |
1448 | was a macro that became an assignment, so it seemed to work. This has | |
1449 | changed to a proper function call with a void return, hence the compile | |
1450 | error. Exim's code has been fixed. | |
1451 | ||
dee5a20a PH |
1452 | PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit |
1453 | cpus. | |
1454 | ||
d2ee6114 PH |
1455 | PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify". |
1456 | ||
b2d5182b PH |
1457 | PH/36 Applied John Jetmore's patch to add -v functionality to exigrep. |
1458 | ||
79749a79 PH |
1459 | PH/37 If a message is not accepted after it has had an id assigned (e.g. |
1460 | because it turns out to be too big or there is a timeout) there is no | |
3ce62588 PH |
1461 | "Completed" line in the log. When some messages of this type were |
1462 | selected by exigrep, they were listed as "not completed". Others were | |
1463 | picked up by some special patterns. I have improved the selection | |
1464 | criteria to be more general. | |
79749a79 | 1465 | |
c456d9bb PH |
1466 | PH/38 The host_find_failed option in the manualroute router can now be set |
1467 | to "ignore", to completely ignore a host whose IP address cannot be | |
1468 | found. If all hosts are ignored, the behaviour is controlled by the new | |
1469 | host_all_ignored option. | |
1470 | ||
cd9868ec PH |
1471 | PH/39 In a list of hosts for manualroute, if one item (either because of multi- |
1472 | homing or because of multiple MX records with /mx) generated more than | |
1473 | one IP address, and the following item turned out to be the local host, | |
1474 | all the secondary addresses of the first item were incorrectly removed | |
1475 | from the list, along with the local host and any following hosts (which | |
1476 | is what is supposed to happen). | |
1477 | ||
ebeaf996 PH |
1478 | PH/40 When Exim receives a message, it writes the login name, uid, and gid of |
1479 | whoever called Exim into the -H file. In the case of the daemon it was | |
1480 | behaving confusingly. When first started, it used values for whoever | |
1481 | started the daemon, but after a SIGHUP it used the Exim user (because it | |
1482 | calls itself on a restart). I have changed the code so that it now always | |
1483 | uses the Exim user. | |
1484 | ||
2679d413 PH |
1485 | PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a |
1486 | message are rejected with the same error (e.g. no authentication or bad | |
1487 | sender address), and a DATA command is nevertheless sent (as can happen | |
1488 | with PIPELINING or a stupid MUA), the error message that was given to the | |
1489 | RCPT commands is included in the rejection of the DATA command. This is | |
1490 | intended to be helpful for MUAs that show only the final error to their | |
1491 | users. | |
1492 | ||
84024b72 PH |
1493 | PH/42 Another patch from the Sieve maintainer. |
1494 | ||
8005d38e SC |
1495 | SC/02 Eximstats - Differentiate between permanent and temporary rejects. |
1496 | Eximstats - Fixed some broken HTML links and added missing column headers | |
1497 | (Jez Hancock). | |
1498 | Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email | |
1499 | columns for Rejects, Temp Rejects, Ham, and Spam rows. | |
1500 | ||
3298c6c6 SC |
1501 | SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables. |
1502 | ||
a43a27c5 PH |
1503 | PH/43 Yet another patch from the Sieve maintainer. |
1504 | ||
58eb016e | 1505 | PH/44 I found a way to check for a TCP/IP connection going away before sending |
563b63fa PH |
1506 | the response to the final '.' that terminates a message, but only in the |
1507 | case where the client has not sent further data following the '.' | |
1508 | (unfortunately, this is allowed). However, in many cases there won't be | |
1509 | any further data because there won't be any more messages to send. A call | |
1510 | to select() can be used: if it shows that the input is "ready", there is | |
1511 | either input waiting, or the socket has been closed. An attempt to read | |
1512 | the next input character can distinguish the two cases. Previously, Exim | |
58eb016e | 1513 | would have sent an OK response which the client would never have see. |
563b63fa PH |
1514 | This could lead to message repetition. This fix should cure that, at |
1515 | least in a lot of common cases. | |
58eb016e | 1516 | |
b43a74ea PH |
1517 | PH/45 Do not advertise STARTTLS in response to HELP unless it would be |
1518 | advertised in response to EHLO. | |
1519 | ||
b4ed4da0 | 1520 | |
5dd1517f PH |
1521 | Exim version 4.66 |
1522 | ----------------- | |
1523 | ||
1524 | PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one | |
1525 | fixed by 4.65/MH/01 (is this a record?) are fixed: | |
1526 | ||
1527 | (i) An empty string was always treated as zero by the numeric comparison | |
1528 | operators. This behaviour has been restored. | |
1529 | ||
1530 | (ii) It is documented that the numeric comparison operators always treat | |
1531 | their arguments as decimal numbers. This was broken in that numbers | |
1532 | starting with 0 were being interpreted as octal. | |
1533 | ||
1534 | While fixing these problems I realized that there was another issue that | |
1535 | hadn't been noticed. Values of message_size_limit (both the global option | |
1536 | and the transport option) were treated as octal if they started with 0. | |
1537 | The documentation was vague. These values are now always treated as | |
1538 | decimal, and I will make that clear in the documentation. | |
1539 | ||
1540 | ||
93cfa765 TK |
1541 | Exim version 4.65 |
1542 | ----------------- | |
1543 | ||
1544 | TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with | |
1545 | Linux large file support (_FILE_OFFSET_BITS=64) on older glibc | |
1546 | versions. (#438) | |
1547 | ||
d6066548 MH |
1548 | MH/01 Don't check that the operands of numeric comparison operators are |
1549 | integers when their expansion is in "skipping" mode (fixes bug | |
1550 | introduced by 4.64-PH/07). | |
1551 | ||
4362ff0d PH |
1552 | PH/01 If a system filter or a router generates more than SHRT_MAX (32767) |
1553 | child addresses, Exim now panics and dies. Previously, because the count | |
1554 | is held in a short int, deliveries were likely to be lost. As such a | |
1555 | large number of recipients for a single message is ridiculous | |
1556 | (performance will be very, very poor), I have chosen to impose a limit | |
1557 | rather than extend the field. | |
1558 | ||
93cfa765 | 1559 | |
944e9e9c TF |
1560 | Exim version 4.64 |
1561 | ----------------- | |
aa41d2de | 1562 | |
21d74bd9 TK |
1563 | TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a |
1564 | leftover -K file (the existence of which was triggered by #402). | |
1565 | While we were at it, introduced process PID as part of the -K | |
1566 | filename. This should rule out race conditions when creating | |
1567 | these files. | |
1568 | ||
1569 | TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing | |
1570 | processing considerably. Previous code took too long for large mails, | |
1571 | triggering a timeout which in turn triggers #401. | |
1572 | ||
1573 | TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used | |
1574 | in the DK code in transports.c. sendfile() is not really portable, | |
1575 | hence the _LINUX specificness. | |
944e9e9c TF |
1576 | |
1577 | TF/01 In the add_headers option to the mail command in an Exim filter, | |
1578 | there was a bug that Exim would claim a syntax error in any | |
1579 | header after the first one which had an odd number of characters | |
1580 | in the field name. | |
1581 | ||
2b1c6e3a PH |
1582 | PH/01 If a server that rejects MAIL FROM:<> was the target of a sender |
1583 | callout verification, Exim cached a "reject" for the entire domain. This | |
1584 | is correct for most verifications, but it is not correct for a recipient | |
1585 | verification with use_sender or use_postmaster set, because in that case | |
1586 | the callout does not use MAIL FROM:<>. Exim now distinguishes the special | |
1587 | case of MAIL FROM:<> rejection from other early rejections (e.g. | |
1588 | rejection of HELO). When verifying a recipient using a non-null MAIL | |
1589 | address, the cache is ignored if it shows MAIL FROM:<> rejection. | |
1590 | Whatever the result of the callout, the value of the domain cache is | |
1591 | left unchanged (for any other kind of callout, getting as far as trying | |
1592 | RCPT means that the domain itself is ok). | |
1593 | ||
1f872c80 PH |
1594 | PH/02 Tidied a number of unused variable and signed/unsigned warnings that |
1595 | gcc 4.1.1 threw up. | |
1596 | ||
1597 | PH/03 On Solaris, an unexpectedly close socket (dropped connection) can | |
1598 | manifest itself as EPIPE rather than ECONNECT. When tidying away a | |
1599 | session, the daemon ignores ECONNECT errors and logs others; it now | |
1600 | ignores EPIPE as well. | |
1601 | ||
d203e649 PH |
1602 | PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c |
1603 | (quoted-printable decoding). | |
1604 | ||
cc2ed8f7 | 1605 | PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and |
21a04aa3 | 1606 | later the small subsequent patch to fix an introduced bug. |
f951fd57 | 1607 | |
ddfcd446 PH |
1608 | PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer. |
1609 | ||
d45b1de8 PH |
1610 | PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}. |
1611 | ||
1612 | PH/08 An error is now given if message_size_limit is specified negative. | |
1613 | ||
38a0a95f | 1614 | PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables |
641cb756 | 1615 | to be given (somewhat) arbitrary names. |
38a0a95f | 1616 | |
a2405d83 JJ |
1617 | JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced |
1618 | in 4.64-PH/09. | |
1619 | ||
1620 | JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions, | |
1621 | miscellaneous code fixes | |
1622 | ||
6ea85e9a PH |
1623 | PH/10 Added the log_reject_target ACL modifier to specify where to log |
1624 | rejections. | |
1625 | ||
26da7e20 PH |
1626 | PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_ |
1627 | hostname. This is wrong, because it relates to the incoming message (and | |
1628 | probably the interface on which it is arriving) and not to the outgoing | |
1629 | callout (which could be using a different interface). This has been | |
1630 | changed to use the value of the helo_data option from the smtp transport | |
1631 | instead - this is what is used when a message is actually being sent. If | |
1632 | there is no remote transport (possible with a router that sets up host | |
1633 | addresses), $smtp_active_hostname is used. | |
6ea85e9a | 1634 | |
14aa5a05 | 1635 | PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various |
7befa435 | 1636 | tweaks were necessary in order to get it to work (see also 21 below): |
14aa5a05 PH |
1637 | (a) The code assumed that strncpy() returns a negative number on buffer |
1638 | overflow, which isn't the case. Replaced with Exim's string_format() | |
1639 | function. | |
1640 | (b) There were several signed/unsigned issues. I just did the minimum | |
1641 | hacking in of casts. There is scope for a larger refactoring. | |
1642 | (c) The code used strcasecmp() which is not a standard C function. | |
1643 | Replaced with Exim's strcmpic() function. | |
1644 | (d) The code set only $1; it now sets $auth1 as well. | |
1645 | (e) A simple test gave the error "authentication client didn't specify | |
1646 | service in request". It would seem that Dovecot has changed its | |
1647 | interface. Fortunately there's a specification; I followed it and | |
1648 | changed what the client sends and it appears to be working now. | |
1649 | ||
ff75a1f7 PH |
1650 | PH/13 Added $message_headers_raw to provide the headers without RFC 2047 |
1651 | decoding. | |
1652 | ||
e6f6568e PH |
1653 | PH/14 Corrected misleading output from -bv when -v was also used. Suppose the |
1654 | address A is aliased to B and C, where B exists and C does not. Without | |
1655 | -v the output is "A verified" because verification stops after a | |
1656 | successful redirection if more than one address is generated. However, | |
1657 | with -v the child addresses are also verified. Exim was outputting "A | |
1658 | failed to verify" and then showing the successful verification for C, | |
1659 | with its parentage. It now outputs "B failed to verify", showing B's | |
1660 | parentage before showing the successful verification of C. | |
1661 | ||
d6f6e0dc PH |
1662 | PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to |
1663 | look up a TXT record in a specific list after matching in a combined | |
1664 | list. | |
1665 | ||
322050c2 PH |
1666 | PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and |
1667 | RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when | |
1668 | they consult the DNS. I had assumed they would set it the way they | |
1669 | wanted; and indeed my experiments on Linux seem to show that in some | |
1670 | cases they do (I could influence IPv6 lookups but not IPv4 lookups). | |
1671 | To be on the safe side, however, I have now made the interface to | |
1672 | host_find_byname() similar to host_find_bydns(), with an argument | |
1673 | containing the DNS resolver options. The host_find_byname() function now | |
1674 | sets these options at its start, just as host_find_bydns() does. The smtp | |
1675 | transport options dns_qualify_single and dns_search_parents are passed to | |
1676 | host_find_byname() when gethostbyname=TRUE in this transport. Other uses | |
1677 | of host_find_byname() use the default settings of RES_DEFNAMES | |
1678 | (qualify_single) but not RES_DNSRCH (search_parents). | |
1679 | ||
08955dd3 PH |
1680 | PH/17 Applied (a modified version of) Nico Erfurth's patch to make |
1681 | spool_read_header() do less string testing, by means of a preliminary | |
1682 | switch on the second character of optional "-foo" lines. (This is | |
1683 | overdue, caused by the large number of possibilities that now exist. | |
1684 | Originally there were few.) While I was there, I also converted the | |
1685 | str(n)cmp tests so they don't re-test the leading "-" and the first | |
1686 | character, in the hope this might squeeze out yet more improvement. | |
1687 | ||
1eccaa59 PH |
1688 | PH/18 Two problems with "group" syntax in header lines when verifying: (1) The |
1689 | flag allowing group syntax was set by the header_syntax check but not | |
1690 | turned off, possible causing trouble later; (2) The flag was not being | |
1691 | set at all for the header_verify test, causing "group"-style headers to | |
1692 | be rejected. I have now set it in this case, and also caused header_ | |
1693 | verify to ignore an empty address taken from a group. While doing this, I | |
1694 | came across some other cases where the code for allowing group syntax | |
1695 | while scanning a header line wasn't quite right (mostly, not resetting | |
1696 | the flag correctly in the right place). These bugs could have caused | |
1697 | trouble for malformed header lines. I hope it is now all correct. | |
1698 | ||
602e59e5 PH |
1699 | PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called |
1700 | with the "reply" argument non-NULL. The code, however (which originally | |
1701 | came from elsewhere) had *some* tests for NULL when it wrote to *reply, | |
1702 | but it didn't always do it. This confused somebody who was copying the | |
1703 | code for some other use. I have removed all the tests. | |
1704 | ||
411ef850 PH |
1705 | PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a |
1706 | feature that was used to support insecure browsers during the U.S. crypto | |
1707 | embargo. It requires special client support, and Exim is probably the | |
1708 | only MTA that supported it -- and would never use it because real RSA is | |
1709 | always available. This code has been removed, because it had the bad | |
1710 | effect of slowing Exim down by computing (never used) parameters for the | |
1711 | RSA_EXPORT functionality. | |
1712 | ||
7befa435 PH |
1713 | PH/21 On the advice of Timo Sirainen, added a check to the dovecot |
1714 | authenticator to fail if there's a tab character in the incoming data | |
1715 | (there should never be unless someone is messing about, as it's supposed | |
1716 | to be base64-encoded). Also added, on Timo's advice, the "secured" option | |
1717 | if the connection is using TLS or if the remote IP is the same as the | |
1718 | local IP, and the "valid-client-cert option" if a client certificate has | |
1719 | been verified. | |
1720 | ||
48da4259 | 1721 | PH/22 As suggested by Dennis Davis, added a server_condition option to *all* |
16ff981e PH |
1722 | authenticators. This can be used for authorization after authentication |
1723 | succeeds. (In the case of plaintext, it servers for both authentication | |
1724 | and authorization.) | |
1725 | ||
48da4259 PH |
1726 | PH/23 Testing for tls_required and lost_connection in a retry rule didn't work |
1727 | if any retry times were supplied. | |
1728 | ||
d1d5595c PH |
1729 | PH/24 Exim crashed if verify=helo was activated during an incoming -bs |
1730 | connection, where there is no client IP address to check. In this | |
1731 | situation, the verify now always succeeds. | |
1732 | ||
0ef732d9 PH |
1733 | PH/25 Applied John Jetmore's -Mset patch. |
1734 | ||
328895cc PH |
1735 | PH/26 Added -bem to be like -Mset, but loading a message from a file. |
1736 | ||
fd700877 PH |
1737 | PH/27 In a string expansion for a processed (not raw) header when multiple |
1738 | headers of the same name were present, leading whitespace was being | |
1739 | removed from all of them, but trailing whitespace was being removed only | |
1740 | from the last one. Now trailing whitespace is removed from each header | |
f6c332bd PH |
1741 | before concatenation. Completely empty headers in a concatenation (as |
1742 | before) are ignored. | |
fd700877 | 1743 | |
8dce1a6f PH |
1744 | PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John |
1745 | Jetmore). It would have mis-read ACL variables from pre-4.61 spool files. | |
1746 | ||
17af4a17 PH |
1747 | PH/29 [Removed. This was a change that I later backed out, and forgot to |
1748 | correct the ChangeLog entry (that I had efficiently created) before | |
1749 | committing the later change.] | |
f6c332bd PH |
1750 | |
1751 | PH/30 Exim was sometimes attempting to deliver messages that had suffered | |
1752 | address errors (4xx response to RCPT) over the same connection as other | |
1753 | messages routed to the same hosts. Such deliveries are always "forced", | |
1754 | so retry times are not inspected. This resulted in far too many retries | |
1755 | for the affected addresses. The effect occurred only when there were more | |
1756 | hosts than the hosts_max_try setting in the smtp transport when it had | |
1757 | the 4xx errors. Those hosts that it had tried were not added to the list | |
1758 | of hosts for which the message was waiting, so if all were tried, there | |
1759 | was no problem. Two fixes have been applied: | |
1760 | ||
1761 | (i) If there are any address or message errors in an SMTP delivery, none | |
1762 | of the hosts (tried or untried) are now added to the list of hosts | |
1763 | for which the message is waiting, so the message should not be a | |
1764 | candidate for sending over the same connection that was used for a | |
1765 | successful delivery of some other message. This seems entirely | |
1766 | reasonable: after all the message is NOT "waiting for some host". | |
1767 | This is so "obvious" that I'm not sure why it wasn't done | |
1768 | previously. Hope I haven't missed anything, but it can't do any | |
1769 | harm, as the worst effect is to miss an optimization. | |
1770 | ||
1771 | (ii) If, despite (i), such a delivery is accidentally attempted, the | |
1772 | routing retry time is respected, so at least it doesn't keep | |
1773 | hammering the server. | |
1774 | ||
c1114884 PH |
1775 | PH/31 Installed Andrew Findlay's patch to close the writing end of the socket |
1776 | in ${readsocket because some servers need this prod. | |
1777 | ||
7a0743eb PH |
1778 | PH/32 Added some extra debug output when updating a wait-xxx database. |
1779 | ||
0d85fa3f PH |
1780 | PH/33 The hint "could be header name not terminated by colon", which has been |
1781 | given for certain expansion errors for a long time, was not being given | |
1782 | for the ${if def:h_colon_omitted{... case. | |
1783 | ||
1bf43b78 PH |
1784 | PH/34 The spec says: "With one important exception, whenever a domain list is |
1785 | being scanned, $domain contains the subject domain." There was at least | |
1786 | one case where this was not true. | |
1787 | ||
520de300 PH |
1788 | PH/35 The error "getsockname() failed: connection reset by peer" was being |
1789 | written to the panic log as well as the main log, but it isn't really | |
1790 | panic-worthy as it just means the connection died rather early on. I have | |
1791 | removed the panic log writing for the ECONNRESET error when getsockname() | |
1792 | fails. | |
1793 | ||
48c7f9e2 PH |
1794 | PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue |
1795 | runs only) independently of the message's sender address. This meant | |
1796 | that, if the 4xx error was in fact related to the sender, a different | |
1797 | message to the same recipient with a different sender could confuse | |
1798 | things. In particualar, this can happen when sending to a greylisting | |
1799 | server, but other circumstances could also provoke similar problems. | |
1800 | I have changed the default so that the retry time for these errors is now | |
1801 | based a combination of the sender and recipient addresses. This change | |
1802 | can be overridden by setting address_retry_include_sender=false in the | |
1803 | smtp transport. | |
1804 | ||
99ea1c86 PH |
1805 | PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the |
1806 | remote server are returned as part of bounce messages. This was not | |
1807 | happening for LMTP over a pipe (the lmtp transport), but now it is the | |
1808 | same for both kinds of LMTP. | |
1809 | ||
a2042e78 PH |
1810 | PH/38 Despite being documented as not happening, Exim was rewriting addresses |
1811 | in header lines that were in fact CNAMEs. This is no longer the case. | |
1812 | ||
4fbcfc2e PH |
1813 | PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored, |
1814 | and queue runs started by the daemon processed all messages. This has | |
1815 | been fixed so that -R and -S can now usefully be given with -q<time>. | |
1816 | ||
aa41d2de PH |
1817 | PH/40 Import PCRE release 6.7 (fixes some bugs). |
1818 | ||
af561417 PH |
1819 | PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch). |
1820 | ||
3cc66b45 PH |
1821 | PH/42 Give an error if -q is specified more than once. |
1822 | ||
194cc0e4 PH |
1823 | PH/43 Renamed the variables $interface_address and $interface_port as |
1824 | $received_ip_address and $received_port, to make it clear that these | |
1825 | values apply to message reception, and not to the outgoing interface when | |
1826 | a message is delivered. (The old names remain recognized, of course.) | |
1827 | ||
a401ddaa PH |
1828 | PH/44 There was no timeout on the connect() call when using a Unix domain |
1829 | socket in the ${readsocket expansion. There now is. | |
1830 | ||
4e88a19f PH |
1831 | PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to |
1832 | be meaningful with "accept". | |
1833 | ||
d7d7b289 SC |
1834 | SC/01 Eximstats V1.43 |
1835 | Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear. | |
1836 | ||
1837 | SC/02 Eximstats V1.44 | |
1838 | Use a glob alias rather than an array ref in the generated | |
1839 | parser. This improves both readability and performance. | |
1840 | ||
1841 | SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell) | |
1842 | Collect SpamAssassin and rejection statistics. | |
1843 | Don't display local sender or destination tables unless | |
1844 | there is data to show. | |
1845 | Added average volumes into the top table text output. | |
1846 | ||
1847 | SC/04 Eximstats V1.46 | |
1848 | Collect data on the number of addresses (recipients) | |
1849 | as well as the number of messages. | |
1850 | ||
1851 | SC/05 Eximstats V1.47 | |
1852 | Added 'Message too big' to the list of mail rejection | |
1853 | reasons (thanks to Marco Gaiarin). | |
1854 | ||
1855 | SC/06 Eximstats V1.48 | |
1856 | Mainlog lines which have GMT offsets and are too short to | |
1857 | have a flag are now skipped. | |
1858 | ||
1859 | SC/07 Eximstats V1.49 (Alain Williams) | |
1860 | Added the -emptyok flag. | |
1861 | ||
1862 | SC/08 Eximstats V1.50 | |
1863 | Fixes for obtaining the IP address from reject messages. | |
1864 | ||
0ea2a468 JJ |
1865 | JJ/03 exipick.20061117.2, made header handling as similar to exim as possible |
1866 | (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed | |
1867 | whitesspace changes from 4.64-PH/27 | |
1868 | ||
1869 | JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to | |
1870 | match 4.64-PH/13 | |
1871 | ||
1872 | JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria | |
1873 | are found, allow negative numbers in numeric criteria) | |
1874 | ||
1875 | JJ/06 exipick.20061117.2, added new $message_body_missing variable | |
1876 | ||
1877 | JJ/07 exipick.20061117.2, added $received_ip_address and $received_port | |
1878 | to match changes made in 4.64-PH/43 | |
1879 | ||
8a10f5a4 PH |
1880 | PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm. |
1881 | ||
30e18802 PH |
1882 | PH/47 Put in an explicit test for a DNS lookup of an address record where the |
1883 | "domain" is actually an IP address, and force a failure. This locks out | |
1884 | those revolvers/nameservers that support "A-for-A" lookups, in | |
1885 | contravention of the specifications. | |
1886 | ||
55728a4f PH |
1887 | PH/48 When a host name was looked up from an IP address, and the subsequent |
1888 | forward lookup of the name timed out, the host name was left in | |
1889 | $sender_host_name, contrary to the specification. | |
d7d7b289 | 1890 | |
d7837193 PH |
1891 | PH/49 Although default lookup types such as lsearch* or cdb*@ have always been |
1892 | restricted to single-key lookups, Exim was not diagnosing an error if | |
1893 | * or *@ was used with a query-style lookup. | |
1894 | ||
87054a31 PH |
1895 | PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024. |
1896 | ||
ea2c01d2 MH |
1897 | MH/01 local_scan ABI version incremented to 1.1. It should have been updated |
1898 | long ago, but noone interested enough thought of it. Let's just say that | |
1899 | the "1.1" means that there are some new functions that weren't there at | |
1900 | some point in the past. | |
1901 | ||
e4fa6968 PH |
1902 | PH/51 Error processing for expansion failure of helo_data from an smtp |
1903 | transport during callout processing was broken. | |
1904 | ||
56f5d9bd PH |
1905 | PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be |
1906 | tested/used via the -bh/-bhc/-bs options. | |
1907 | ||
922e1c28 PH |
1908 | PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE |
1909 | bug, fixed in subsequent PCRE releases). | |
1910 | ||
21eb6e72 PH |
1911 | PH/54 Applied Robert Bannocks' patch to avoid a problem with references that |
1912 | arises when using the Solaris LDAP libraries (but not with OpenLDAP). | |
1913 | ||
a0540757 PH |
1914 | PH/55 Check for a ridiculously long file name in exim_dbmbuild. |
1915 | ||
944e9e9c | 1916 | |
478be7b0 SC |
1917 | Exim version 4.63 |
1918 | ----------------- | |
1919 | ||
1920 | SC/01 Use a glob alias rather than an array ref in eximstats generated | |
1921 | parser. This improves both readability and performance. | |
1922 | ||
1923 | SC/02 Collect SpamAssassin and rejection statistics in eximstats. | |
1924 | Don't display local sender or destination tables in eximstats unless | |
1925 | there is data to show. | |
1926 | Added average volumes into the eximstats top table text output. | |
1927 | ||
1928 | SC/03 Collect data on the number of addresses (recipients) as well | |
1929 | as the number of messages in eximstats. | |
1930 | ||
2b965a65 TF |
1931 | TF/01 Correct an error in the documentation for the redirect router. Exim |
1932 | does (usually) call initgroups() when daemonizing. | |
478be7b0 | 1933 | |
45b91596 PH |
1934 | TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs |
1935 | with consistent privilege compared to when running as a daemon. | |
478be7b0 | 1936 | |
c59f5781 TF |
1937 | TF/03 Note in the spec that $authenticated_id is not set for local |
1938 | submissions from trusted users. | |
1939 | ||
90fc3069 TF |
1940 | TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp. |
1941 | Thanks to Dean Brooks <dean@iglou.com> for the patch. | |
1942 | ||
6083aca0 TF |
1943 | TF/05 Make it easier to get SMTP authentication and TLS/SSL support working |
1944 | by adding some example configuration directives to the default | |
1945 | configuration file. A little bit of work is required to uncomment the | |
1946 | directives and define how usernames and passwords are checked, but | |
1947 | there is now a framework to start from. | |
1948 | ||
765b530f PH |
1949 | PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old" |
1950 | functions that Exim currently uses aren't defined in ldap.h for OpenLDAP | |
1951 | without this. I don't know how relevant this is to other LDAP libraries. | |
1952 | ||
4e167a8c PH |
1953 | PH/02 Add the verb name to the "unknown ACL verb" error. |
1954 | ||
4608d683 PH |
1955 | PH/03 Magnus Holmgren's patch for filter_prepend_home. |
1956 | ||
b8dc3e4a PH |
1957 | PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work. |
1958 | ||
5418e93b PH |
1959 | PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home |
1960 | directory not expanded when it should be if an expanded home directory | |
1961 | was set for the address (which is overridden by the transport). | |
1962 | ||
b4a9bda2 PH |
1963 | PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with |
1964 | libradius. | |
1965 | ||
45b91596 PH |
1966 | PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the |
1967 | bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL, | |
1968 | because it is too late at that time, and has no effect. | |
1969 | ||
5547e2c5 PH |
1970 | PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a |
1971 | security issue with \' (bugzilla #107). I could not use the | |
1972 | PQescapeStringConn() function, because it needs a PGconn value as one of | |
1973 | its arguments. | |
1974 | ||
dbcef0ea PH |
1975 | PH/08 When testing addresses using -bt, indicate those final addresses that |
1976 | are duplicates that would not cause an additional delivery. At least one | |
1977 | person was confused, thinking that -bt output corresponded to deliveries. | |
1978 | (Suppressing duplicates isn't a good idea as you lose the information | |
1979 | about possibly different redirections that led to the duplicates.) | |
1980 | ||
25257489 PH |
1981 | PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on |
1982 | systems where poll() doesn't work, in particular OS X. | |
1983 | ||
c816d124 PH |
1984 | PH/10 Added more information to debugging output for retry time not reached. |
1985 | ||
a9ccd69a PH |
1986 | PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read |
1987 | operations in malware.c. | |
1988 | ||
75fa1910 PH |
1989 | PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys |
1990 | signatures. | |
1991 | ||
a7d7aa58 PH |
1992 | PH/13 If write_rejectlog was set false when logging was sent to syslog with |
1993 | syslog_duplication set false, log lines that would normally be written | |
1994 | both the the main log and to the reject log were not written to syslog at | |
1995 | all. | |
1996 | ||
42119b09 PH |
1997 | PH/14 In the default configuration, change the use of "message" in ACL warn |
1998 | statements to "add_header". | |
1999 | ||
41609df5 PH |
2000 | PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not |
2001 | not followed by a command (e.g. "seen endif"). | |
2002 | ||
a5bd321b PH |
2003 | PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail: |
2004 | and :defer: in a redirect router. Add forbid_smtp_code to suppress the | |
2005 | latter. | |
2006 | ||
e85a7ad5 | 2007 | PH/17 Added extra conditions to the default value of delay_warning_condition |
5dff5817 PH |
2008 | so that it is now: |
2009 | ||
e85a7ad5 PH |
2010 | ${if or { \ |
2011 | { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \ | |
2012 | { match{$h_precedence:}{(?i)bulk|list|junk} } \ | |
2013 | { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \ | |
5dff5817 PH |
2014 | }{no}{yes}} |
2015 | ||
e85a7ad5 PH |
2016 | The Auto-Submitted: and various List- headers are standardised, whereas I |
2017 | don't think Precedence: ever was. | |
5dff5817 | 2018 | |
d8fe1c03 PH |
2019 | PH/18 Refactored debugging code in route_finduser() to show more information, |
2020 | in particular, the error code if getpwnam() issues one. | |
2021 | ||
16282d2b PH |
2022 | PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module. |
2023 | This is apparently needed in addition to the PH/07 change above to avoid | |
2024 | any possible encoding problems. | |
2025 | ||
35d40a98 PH |
2026 | PH/20 Perl can change the locale. Exim was resetting it after a ${perl call, |
2027 | but not after initializing Perl. | |
2028 | ||
034d99ab PH |
2029 | PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and |
2030 | output them only if debugging. By default they are written stderr, | |
2031 | apparently, which is not desirable. | |
2032 | ||
6ec97b1b PH |
2033 | PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on |
2034 | queries. | |
2035 | ||
e22ca4ac JJ |
2036 | JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and |
2037 | --not options | |
2038 | ||
2039 | JJ/02 exipick: rewrote --help documentation to hopefully make more clear. | |
2040 | ||
33d73e3b PH |
2041 | PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is |
2042 | authenticated or an ident call has been made. Suppress the default | |
2043 | values for $authenticated_id and $authenticated_sender (but permit -oMai | |
2044 | and -oMas) when testing with -bh. | |
2045 | ||
9ecb03f3 PH |
2046 | PH/24 Re-jigged the order of the tests in the default configuration so that the |
2047 | tests for valid domains and recipients precede the DNS black list and CSA | |
2048 | tests, on the grounds that those ones are more expensive. | |
2049 | ||
084efe8d PH |
2050 | PH/25 Exim was not testing for a space following SMTP commands such as EHLO |
2051 | that require one. Thus, EHLORHUBARB was interpreted as a valid command. | |
2052 | This bug exists in every version of Exim that I still have, right back to | |
2053 | 0.12. | |
2054 | ||
366fc9f0 PH |
2055 | PH/26 (n)wildlsearch lookups are documented as being done case-insensitively. |
2056 | However, an attempt to turn on case-sensitivity in a regex key by | |
2057 | including (?-i) didn't work because the subject string was already | |
2058 | lowercased, and the effects were non-intuitive. It turns out that a | |
2059 | one-line patch can be used to allow (?-i) to work as expected. | |
2060 | ||
c59f5781 | 2061 | |
c887c79e TF |
2062 | Exim version 4.62 |
2063 | ----------------- | |
2064 | ||
2065 | TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst | |
2066 | other effects) broke the use of negated acl sub-conditions. | |
2067 | ||
1cce3af8 PH |
2068 | PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore |
2069 | patch). | |
2070 | ||
afb3eaaf PH |
2071 | PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow". |
2072 | "Deny" causes Exim to reject the incoming connection with a 554 error. | |
2073 | Unfortunately, if there is a major crisis, such as a disk failure, | |
2074 | tcp-wrappers gives "deny", whereas what one would like would be some | |
2075 | kind of temporary error. A kludge has been added to help with this. | |
2076 | Before calling hosts_ctl(), errno is set zero. If the result is "deny", a | |
2077 | 554 error is used if errno is still zero or contains ENOENT (which occurs | |
2078 | if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a | |
2079 | 451 error is used. | |
2080 | ||
e173618b PH |
2081 | PH/03 Add -lutil to the default FreeBSD LIBS setting. |
2082 | ||
dd16e114 PH |
2083 | PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host |
2084 | errors. Otherwise a message that provokes a temporary error (when other | |
2085 | messages do not) can cause a whole host to time out. | |
2086 | ||
f7fd3850 PH |
2087 | PH/05 Batch deliveries by appendfile and pipe transports did not work when the |
2088 | addresses were routed directly to files or pipes from a redirect router. | |
2089 | File deliveries just didn't batch; pipe deliveries might have suffered | |
2090 | odd errors. | |
2091 | ||
d87df92c PH |
2092 | PH/06 A failure to get a lock for a hints database would erroneously always say |
2093 | "Failed to get write lock", even when it was really a read lock. | |
2094 | ||
7e9f683d PH |
2095 | PH/07 The appendfile transport was creating MBX lock files with a fixed mode |
2096 | of 0600. This has been changed to use the value of the lockfile_mode | |
2097 | option (which defaults to 0600). | |
2098 | ||
bfad5236 PH |
2099 | PH/08 Applied small patch from the Sieve maintainer. |
2100 | ||
01c490df PH |
2101 | PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash |
2102 | folder from quota calculations, a direct delivery into this folder messed | |
2103 | up the contents of the maildirsize file. This was because the regex was | |
2104 | used only to exclude .Trash (or whatever) when the size of the mailbox | |
2105 | was calculated. There was no check that a delivery was happening into an | |
2106 | excluded directory. This bug has been fixed by ignoring all quota | |
2107 | processing for deliveries into excluded directories. | |
2108 | ||
d6629cdc PH |
2109 | PH/10 Added the maildirfolder_create_regex option to appendfile. |
2110 | ||
1cce3af8 | 2111 | |
214e2000 PH |
2112 | Exim version 4.61 |
2113 | ----------------- | |
2114 | ||
2115 | PH/01 The code for finding all the local interface addresses on a FreeBSD | |
2116 | system running IPv6 was broken. This may well have applied to all BSD | |
2117 | systems, as well as to others that have similar system calls. The broken | |
2118 | code found IPv4 interfaces correctly, but gave incorrect values for the | |
2119 | IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was | |
2120 | that it would not match correctly against @[] and not recognize the IPv6 | |
2121 | addresses as local. | |
2122 | ||
f9daeae0 PH |
2123 | PH/02 The ipliteral router was not recognizing addresses of the form user@ |
2124 | [ipv6:....] because it didn't know about the "ipv6:" prefix. | |
2125 | ||
7e66e54d PH |
2126 | PH/03 Added disable_ipv6. |
2127 | ||
c8ea1597 PH |
2128 | PH/04 Changed $reply_address to use the raw form of the headers instead of the |
2129 | decoded form, because it is most often used to construct To: headers | |
2130 | lines in autoreplies, and the decoded form may well be syntactically | |
2131 | invalid. However, $reply_address has leading white space removed, and all | |
2132 | newlines turned into spaces so that the autoreply transport does not | |
2133 | grumble. | |
2134 | ||
911f6fde PH |
2135 | PH/05 If group was specified without a user on a router, and no group or user |
2136 | was specified on a transport, the group from the router was ignored. | |
2137 | ||
47ca6d6c PH |
2138 | PH/06 Increased the number of ACL variables to 20 of each type, and arranged |
2139 | for visible compile-time settings that can be used to change these | |
2140 | numbers, for those that want even more. Backwards compatibility with old | |
2141 | spool files has been maintained. However, going back to a previous Exim | |
2142 | release will lost any variables that are in spool files. | |
2143 | ||
ed0e9820 PH |
2144 | PH/07 Two small changes when running in the test harness: increase delay when |
2145 | passing a TCP/IP connection to a new process, in case the original | |
2146 | process has to generate a bounce, and remove special handling of | |
2147 | 127.0.0.2 (sic), which is no longer necessary. | |
2148 | ||
eff37e47 PH |
2149 | PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to |
2150 | be the same on different OS. | |
2151 | ||
1921d2ea PH |
2152 | PH/09 Moved a debug statement in filter processing to avoid a race problem when |
2153 | testing. | |
2154 | ||
b3f69ca8 JJ |
2155 | JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:" |
2156 | whether --show-vars was specified or not | |
2157 | ||
2158 | JJ/02 exipick: Added support for new ACL variable spool format introduced | |
2159 | in 4.61-PH/06 | |
2160 | ||
424a1c63 PH |
2161 | PH/10 Fixed another bug related to PH/04 above: if an incoming message had a |
2162 | syntactically invalid From: or Reply-to: line, and a filter used this to | |
2163 | generate an autoreply, and therefore failed to obtain an address for the | |
2164 | autoreply, Exim could try to deliver to a non-existent relative file | |
2165 | name, causing unrelated and misleading errors. What now happens is that | |
2166 | it logs this as a hard delivery error, but does not attempt to create a | |
2167 | bounce message. | |
2168 | ||
7a100415 PH |
2169 | PH/11 The exinext utility has a -C option for testing purposes, but although |
2170 | the given file was scanned by exinext itself; it wasn't being passed on | |
2171 | when Exim was called. | |
2172 | ||
19b9dc85 PH |
2173 | PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as |
2174 | an end-of-file indication when reading a command response. | |
2175 | ||
309bd837 PH |
2176 | PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was |
2177 | compiled. In many other places in Exim, IPv6 addresses are always | |
2178 | recognized, so I have changed this. It also means that IPv4 domain | |
2179 | literals of the form [IPV4:n.n.n.n] are now always recognized. | |
2180 | ||
59e82a2a PH |
2181 | PH/14 When a uid/gid is specified for the queryprogram router, it cannot be |
2182 | used if the router is not running as root, for example, when verifying at | |
2183 | ACL time, or when using -bh. The debugging output from this situation was | |
2184 | non-existent - all you got was a failure to exec. I have made two | |
2185 | changes: | |
2186 | ||
2187 | (a) Failures to set uid/gid, the current directory, or a process leader | |
2188 | in a subprocess such as that created by queryprogram now generate | |
2189 | suitable debugging ouput when -d is set. | |
2190 | ||
2191 | (b) The queryprogram router detects when it is not running as root, | |
2192 | outputs suitable debugging information if -d is set, and then runs | |
2193 | the subprocess without attempting to change uid/gid. | |
2194 | ||
9edc04ce PH |
2195 | PH/15 Minor change to Makefile for building test_host (undocumented testing |
2196 | feature). | |
2197 | ||
1349e1e5 PH |
2198 | PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the |
2199 | additional section of a DNS packet that returns MX or SRV records. | |
2200 | Instead, it always explicitly searches for A/AAAA records. This avoids | |
2201 | major problems that occur when a DNS server includes only records of one | |
2202 | type (A or AAAA) in an MX/SRV packet. A byproduct of this change has | |
2203 | fixed another bug: if SRV records were looked up and the corresponding | |
2204 | address records were *not* found in the additional section, the port | |
2205 | values from the SRV records were lost. | |
2206 | ||
ea49d0e1 PH |
2207 | PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not |
2208 | using the correct key (the original address) when searching the retry | |
2209 | rules in order to find which one to use for generating the retry hint. | |
2210 | ||
064a94c9 PH |
2211 | PH/18 If quota_warn_message contains a From: header, Exim now refrains from |
2212 | adding the default one. Similarly, if it contains a Reply-To: header, the | |
2213 | errors_reply_to option, if set, is not used. | |
2214 | ||
727071f8 PH |
2215 | PH/19 When calculating a retry time, Exim used to measure the "time since |
2216 | failure" by looking at the "first failed" field in the retry record. Now | |
2217 | it does not use this if it is later than than the arrival time of the | |
2218 | message. Instead it uses the arrival time. This makes for better | |
2219 | behaviour in cases where some deliveries succeed, thus re-setting the | |
2220 | "first failed" field. An example is a quota failure for a huge message | |
2221 | when small messages continue to be delivered. Without this change, the | |
2222 | "time since failure" will always be short, possible causing more frequent | |
2223 | delivery attempts for the huge message than are intended. | |
dd16e114 | 2224 | [Note: This change was subsequently modified - see PH/04 for 4.62.] |
727071f8 | 2225 | |
f78eb7c6 PH |
2226 | PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as |
2227 | $1, $2, $3) because the numerical variables can be reset during some | |
2228 | expansion items (e.g. "match"), thereby losing the authentication data. | |
2229 | ||
21c28500 PH |
2230 | PH/21 Make -bV show the size of off_t variables so that the test suite can |
2231 | decide whether to run tests for quotas > 2G. | |
2232 | ||
2233 | PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold, | |
2234 | mailbox_size, and mailbox_filecount in the appendfile transport. If a | |
2235 | filecount value is greater than 2G or if a quota value is greater than 2G | |
2236 | on a system where the size of off_t is not greater than 4, a panic error | |
2237 | is given. | |
2238 | ||
1688f43b PH |
2239 | PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can |
2240 | never match. The debug and -bh output now contains an explicit error | |
2241 | message indicating a malformed IPv4 address or mask. | |
2242 | ||
2243 | PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address | |
2244 | 1.2.3.4 without a mask. Now it is not recognized as an IP address, and | |
2245 | PH/23 above applies. | |
2246 | ||
9675b384 PH |
2247 | PH/25 Do not write to syslog when running in the test harness. The only |
2248 | occasion when this arises is a failure to open the main or panic logs | |
2249 | (for which there is an explicit test). | |
2250 | ||
6a3f1455 PH |
2251 | PH/26 Added the /no_tell option to "control=freeze". |
2252 | ||
dac79d3e PH |
2253 | PH/27 If a host name lookup failed very early in a connection, for example, if |
2254 | the IP address matched host_lookup and the reverse lookup yielded a name | |
2255 | that did not have a forward lookup, an error message of the form "no IP | |
2256 | address found for host xxx.xxx.xxx (during SMTP connection from NULL)" | |
2257 | could be logged. Now it outputs the IP address instead of "NULL". | |
1349e1e5 | 2258 | |
5977a0b3 PH |
2259 | PH/28 An enabling patch from MH: add new function child_open_exim2() which |
2260 | allows the sender and the authenticated sender to be set when | |
2261 | submitting a message from within Exim. Since child_open_exim() is | |
2262 | documented for local_scan(), the new function should be too. | |
2263 | ||
c91535f3 PH |
2264 | PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being |
2265 | ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that | |
2266 | results in an empty string is now treated as unset. | |
2267 | ||
0d46a8c8 PH |
2268 | PH/30 Fix eximon buffer overflow bug (Bugzilla #73). |
2269 | ||
278c6e6c PH |
2270 | PH/31 Added sender_verify_fail logging option. |
2271 | ||
2cbb4081 PH |
2272 | PH/32 In November 2003, the code in Exim that added an empty Bcc: header when |
2273 | needed by RFC 822 but not by RFC 2822 was commented out. I have now | |
2274 | tidied the source and removed it altogether. | |
2275 | ||
3eef829e PH |
2276 | PH/33 When a queue run was abandoned because the load average was too high, a |
2277 | log line was always written; now it is written only if the queue_run log | |
2278 | selector is set. In addition, the log line for abandonment now contains | |
2279 | information about the queue run such as the pid. This is always present | |
2280 | in "start" and "stop" lines but was omitted from the "abandon" line. | |
2281 | ||
1ab95fa6 PH |
2282 | PH/34 Omit spaces between a header name and the colon in the error message that |
2283 | is given when verify = headers_syntax fails (if there are lots of them, | |
2284 | the message gets confusing). | |
2285 | ||
230205fc PH |
2286 | PH/35 Change the default for dns_check_names_pattern to allow slashes within |
2287 | names, as there are now some PTR records that contain slashes. This check | |
2288 | is only to protect against broken name servers that fall over on strange | |
2289 | characters, so the fact that it applies to all lookups doesn't matter. | |
2290 | ||
75e0e026 PH |
2291 | PH/36 Now that the new test suite is complete, we can remove some of the |
2292 | special code in Exim that was needed for the old test suite. For example, | |
2293 | sorting DNS records because real resolvers return them in an arbitrary | |
2294 | order. The new test suite's fake resolver always returns records in the | |
2295 | same order. | |
2296 | ||
2297 | PH/37 When running in the test harness, use -odi for submitted messages (e.g. | |
2298 | bounces) except when queue_only is set, to avoid logging races between | |
2299 | the different processes. | |
2300 | ||
145396a6 PH |
2301 | PH/38 Panic-die if .include specifies a non-absolute path. |
2302 | ||
3cd34f13 PH |
2303 | PH/39 A tweak to the "H" retry rule from its user. |
2304 | ||
11121d3d JJ |
2305 | JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified |
2306 | a label. They prevented compilation on older perls. | |
2307 | ||
2308 | JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused | |
2309 | a warning to be raised on newish perls. | |
2310 | ||
2311 | JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages | |
2312 | on queue. Changes to match documented behaviour of showing count of | |
2313 | messages matching specified criteria. | |
2314 | ||
8def5aaf PH |
2315 | PH/40 Changed the default ident timeout from 30s to 5s. |
2316 | ||
929ba01c PH |
2317 | PH/41 Added support for the use of login_cap features, on those BSD systems |
2318 | that have them, for controlling the resources used by pipe deliveries. | |
2319 | ||
2632889e PH |
2320 | PH/42 The content-scanning code uses fopen() to create files in which to put |
2321 | message data. Previously it was not paying any attention to the mode of | |
2322 | the files. Exim runs with umask(0) because the rest of the code creates | |
2323 | files with open(), and sets the required mode explicitly. Thus, these | |
2324 | files were ending up world-writeable. This was not a big issue, because, | |
2325 | being within the spool directory, they were not world-accessible. I have | |
2326 | created a function called modefopen, which takes an additional mode | |
2327 | argument. It sets umask(777), creates the file, chmods it to the required | |
2328 | mode, then resets the umask. All the relevant calls to fopen() in the | |
2329 | content scanning code have been changed to use this function. | |
2330 | ||
944a9c55 PH |
2331 | PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset |
2332 | to 24 hours. This avoids potential overflow problems when processing G | |
2333 | and H retry rules. I suspect nobody ever tinkers with this value. | |
2334 | ||
4a23603b PH |
2335 | PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile. |
2336 | ||
4730f942 PH |
2337 | PH/45 When the plaintext authenticator is running as a client, the server's |
2338 | challenges are checked to ensure they are valid base64 strings. By | |
2339 | default, the authentication attempt is cancelled if an invalid string is | |
2340 | received. Setting client_ignore_invalid_base64 true ignores these errors. | |
2341 | The decoded challenge strings are now placed in $auth1, $auth2, etc. as | |
2342 | they are received. Thus, the responses can be made to depend on the | |
2343 | challenges. If an invalid string is ignored, an empty string is placed in | |
2344 | the variable. | |
2345 | ||
30dba1e6 PH |
2346 | PH/46 Messages that are created by the autoreply transport now contains a |
2347 | References: header, in accordance with RFCs 2822 and 3834. | |
2348 | ||
382afc6b PH |
2349 | PH/47 Added authenticated_sender_force to the smtp transport. |
2350 | ||
a86229cf PH |
2351 | PH/48 The ${prvs expansion was broken on systems where time_t was long long. |
2352 | ||
50c99ba6 PH |
2353 | PH/49 Installed latest patch from the Sieve maintainer. |
2354 | ||
d35e429d PH |
2355 | PH/50 When an Exim quota was set without a file count quota, and mailbox_size |
2356 | was also set, the appendfile transport was unnecessarily scanning a | |
2357 | directory of message files (e.g. for maildir delivery) to find the count | |
2358 | of files (along with the size), even though it did not need this | |
2359 | information. It now does the scan only if it needs to find either the | |
2360 | size of the count of files. | |
2361 | ||
f90d018c PH |
2362 | PH/51 Added ${time_eval: to convert Exim time strings into seconds. |
2363 | ||
75def545 PH |
2364 | PH/52 Two bugs concerned with error handling when the smtp transport is |
2365 | used in LMTP mode: | |
2366 | ||
2367 | (i) Exim was not creating retry information for temporary errors given | |
2368 | for individual recipients after the DATA command when the smtp transport | |
2369 | was used in LMTP mode. This meant that they could be retried too | |
2370 | frequently, and not timed out correctly. | |
2371 | ||
2372 | (ii) Exim was setting the flag that allows error details to be returned | |
2373 | for LMTP errors on RCPT commands, but not for LMTP errors for individual | |
2374 | recipients that were returned after the DATA command. | |
2375 | ||
2376 | PH/53 This is related to PH/52, but is more general: for any failing address, | |
2377 | when detailed error information was permitted to be returned to the | |
2378 | sender, but the error was temporary, then after the final timeout, only | |
2379 | "retry timeout exceeded" was returned. Now it returns the full error as | |
2380 | well as "retry timeout exceeded". | |
2381 | ||
c46782ef PH |
2382 | PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that |
2383 | do this, and (what is worse) MTAs that accept it. | |
2384 | ||
71fafd95 PH |
2385 | PH/55 Added the add_header modified to ACLs. The use of "message" with "warn" |
2386 | will now be deprecated. | |
2387 | ||
2c5db4fd PH |
2388 | PH/56 New os.c-cygwin from the Cygwin maintainer. |
2389 | ||
9cf6b11a JJ |
2390 | JJ/06 exipick: added --unsorted option to allow unsorted output in all output |
2391 | formats (previously only available in exim formats via -bpr, -bpru, | |
2392 | and -bpra. Now also available in native and exiqgrep formats) | |
2393 | ||
2394 | JJ/07 exipick: added --freeze and --thaw options to allow faster interaction | |
2395 | with very large, slow to parse queues | |
2396 | ||
2397 | JJ/08 exipick: added ! as generic prefix to negate any criteria format | |
2398 | ||
2399 | JJ/09 exipick: miscellaneous performance enhancements (~24% improvements) | |
2400 | ||
898d150f PH |
2401 | PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing |
2402 | responses to authentication challenges, though it was showing the | |
2403 | challenges; (ii) I've removed the CR characters from the debug output for | |
2404 | SMTP output lines. | |
2405 | ||
46218253 PH |
2406 | PH/58 Allow for the insertion of a newline as well as a space when a string |
2407 | is turned into more than one encoded-word during RFC 2047 encoding. The | |
2408 | Sieve code now uses this. | |
2409 | ||
e97957bc PH |
2410 | PH/59 Added the following errors that can be detected in retry rules: mail_4xx, |
2411 | data_4xx, lost_connection, tls_required. | |
2412 | ||
81e509d7 PH |
2413 | PH/60 When a VRFY deferred or FAILED, the log message rather than the user |
2414 | message was being sent as an SMTP response. | |
2415 | ||
3d240ff7 PH |
2416 | PH/61 Add -l and -k options to exicyclog. |
2417 | ||
b37c4101 PH |
2418 | PH/62 When verifying, if an address was redirected to one new address, so that |
2419 | verification continued, and the new address failed or deferred after | |
2420 | having set something in $address_data, the value of $address_data was not | |
2421 | passed back to the ACL. This was different to the case when no | |
2422 | redirection occurred. The value is now passed back in both cases. | |
2423 | ||
79378e0f PH |
2424 | PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to |
2425 | HAVE_SETCLASSRESOURCES because there are different APIs in use that all | |
2426 | use login_cap.h, so on its own it isn't the distinguishing feature. The | |
2427 | new name refers directly to the setclassresources() function. | |
2428 | ||
e49c7bb4 PH |
2429 | PH/65 Added configuration files for NetBSD3. |
2430 | ||
d114ec46 PH |
2431 | PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11. |
2432 | ||
f3d7df6c PH |
2433 | PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6 |
2434 | is preferred over IPv4. | |
2435 | ||
715ab376 PH |
2436 | PH/68 The bounce_return_message and bounce_return_body options were not being |
2437 | honoured for bounces generated during the reception of non-SMTP messages. | |
2438 | In particular, this applied to messages rejected by the ACL. This bug has | |
2439 | been fixed. However, if bounce_return_message is true and bounce_return_ | |
2440 | body is false, the headers that are returned for a non-SMTP message | |
2441 | include only those that have been read before the error was detected. | |
2442 | (In the case of an ACL rejection, they have all been read.) | |
2443 | ||
6b31b150 PH |
2444 | PH/69 The HTML version of the specification is now built in a directory called |
2445 | spec_html instead of spec.html, because the latter looks like a path with | |
2446 | a MIME-type, and this confuses some software. | |
2447 | ||
2448 | PH/70 Catch two compiler warnings in sieve.c. | |
2449 | ||
d515a917 PH |
2450 | PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The |
2451 | function verify_get_ident() calls ip_connect() to connect a socket, but | |
2452 | if the "connect()" function timed out, ip_connect() used to close the | |
2453 | socket. However, verify_get_ident() also closes the socket later, and in | |
2454 | between Exim writes to the log, which may get opened at this point. When | |
2455 | the socket was closed in ip_connect(), the log could get the same file | |
2456 | descriptor number as the socket. This naturally causes chaos. The fix is | |
2457 | not to close the socket in ip_connect(); the socket should be closed by | |
2458 | the function that creates it. There was only one place in the code where | |
2459 | this was missing, in the iplookup router, which I don't think anybody now | |
2460 | uses, but I've fixed it anyway. | |
2461 | ||
9b8fadde PH |
2462 | PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as |
2463 | well as to direct DNS lookups. Otherwise the handling of names in host | |
2464 | lists is inconsistent and therefore confusing. | |
2465 | ||
214e2000 | 2466 | |
5de37277 PH |
2467 | Exim version 4.60 |
2468 | ----------------- | |
2469 | ||
cc38ddbf PH |
2470 | PH/01 Two changes to the default runtime configuration: |
2471 | ||
2472 | (1) Move the checks for relay_from_hosts and authenticated clients from | |
2473 | after to before the (commented out) DNS black list checks. | |
2474 | ||
2475 | (2) Add control=submission to the relay_from_hosts and authenticated | |
2476 | clients checks, on the grounds that messages accepted by these | |
2477 | statements are most likely to be submissions. | |
5de37277 | 2478 | |
72fdd6ae PH |
2479 | PH/02 Several tidies to the handling of ${prvs and ${prvscheck: |
2480 | ||
2481 | (1) Generate an error if the third argument for the ${prvs expansion is | |
2482 | not a single digit. | |
2483 | ||
2484 | (2) Treat a missing third argument of ${prvscheck as if it were an empty | |
2485 | string. | |
2486 | ||
2487 | (3) Reset the variables that are obtained from the first argument of | |
2488 | ${prvscheck and used in the second argument before leaving the code, | |
2489 | because their memory is reclaimed, so using them afterwards may do | |
2490 | silly things. | |
2491 | ||
2492 | (4) Tidy up the code for expanding the arguments of ${prvscheck one by | |
2493 | one (it's much easier than Tom thought :-). | |
2494 | ||
2495 | (5) Because of (4), we can now allow for the use of $prvscheck_result | |
2496 | inside the third argument. | |
cb9328de | 2497 | |
cb741023 PH |
2498 | PH/03 For some reason, the default setting of PATH when running a command from |
2499 | a pipe transport was just "/usr/bin". I have changed it to | |
2500 | "/bin:/usr/bin". | |
2501 | ||
f174f16e PH |
2502 | PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause |
2503 | anything to be listed in the output from -bV. | |
b2f5a032 | 2504 | |
c25242d7 PH |
2505 | PH/05 When a filter generated an autoreply, the entire To: header line was |
2506 | quoted in the delivery log line, like this: | |
2507 | ||
2508 | => >A.N.Other <ano@some.domain> <original@ddress> ... | |
2509 | ||
2510 | This has been changed so that it extracts the operative address. There | |
2511 | may be more than one such address. If so, they are comma-separated, like | |
2512 | this: | |
2513 | ||
2514 | => >ano@some.domain,ona@other.domain <original@ddress> ... | |
2515 | ||
82c19f95 PH |
2516 | PH/06 When a client host used a correct literal IP address in a HELO or EHLO |
2517 | command, (for example, EHLO [1.2.3.4]) and the client's IP address was | |
2518 | not being looked up in the rDNS to get a host name, Exim was showing the | |
2519 | IP address twice in Received: lines, even though the IP addresses were | |
2520 | identical. For example: | |
2521 | ||
2522 | Received: from [1.2.3.4] (helo=[1.2.3.4]) | |
2523 | ||
2524 | However, if the real host name was known, it was omitting the HELO data | |
2525 | if it matched the actual IP address. This has been tidied up so that it | |
2526 | doesn't show the same IP address twice. | |
2527 | ||
d7ffbc12 PH |
2528 | PH/07 When both +timestamp and +memory debugging was on, the value given by |
2529 | $tod_xxx expansions could be wrong, because the tod_stamp() function was | |
2530 | called by the debug printing, thereby overwriting the timestamp buffer. | |
2531 | Debugging no longer uses the tod_stamp() function when +timestamp is set. | |
2532 | ||
9f526266 PH |
2533 | PH/08 When the original message was included in an autoreply transport, it |
2534 | always said "this is a copy of the message, including all the headers", | |
2535 | even if body_only or headers_only was set. It now gives an appropriate | |
2536 | message. | |
2537 | ||
87fcc8b9 PH |
2538 | PH/09 Applied a patch from the Sieve maintainer which: |
2539 | ||
2540 | o fixes some comments | |
2541 | o adds the (disabled) notify extension core | |
2542 | o adds some debug output for the result of if/elsif tests | |
2543 | o points to the current vacation draft in the documentation | |
2544 | and documents the missing references header update | |
2545 | ||
2546 | and most important: | |
2547 | ||
2548 | o fixes a bug in processing the envelope test (when testing | |
2549 | multiple envelope elements, the last element determinted the | |
2550 | result) | |
2551 | ||
456682f5 PH |
2552 | PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to |
2553 | Electronic Mail") by including: | |
2554 | ||
2555 | Auto-submitted: auto-generated | |
2556 | ||
2557 | in the messages that it generates (bounce messages and others, such as | |
2558 | warnings). In the case of bounce messages for non-SMTP mesages, there was | |
2559 | also a typo: it was using "Auto_submitted" (underscore instead of | |
2560 | hyphen). Since every message generated by Exim is necessarily in response | |
2561 | to another message, thes have all been changed to: | |
2562 | ||
2563 | Auto-Submitted: auto-replied | |
2564 | ||
2565 | in accordance with these statements in the RFC: | |
2566 | ||
2567 | The auto-replied keyword: | |
2568 | ||
2569 | - SHOULD be used on messages sent in direct response to another | |
2570 | message by an automatic process, | |
2571 | ||
2572 | - MUST NOT be used on manually-generated messages, | |
2573 | ||
2574 | - MAY be used on Delivery Status Notifications (DSNs) and Message | |
2575 | Disposition Notifications (MDNs), | |
2576 | ||
2577 | - MUST NOT be used on messages generated by automatic or periodic | |
2578 | processes, except for messages which are automatic responses to | |
2579 | other messages. | |
2580 | ||
3e46c1aa PH |
2581 | PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}" |
2582 | to the default Received: header definition. | |
456682f5 | 2583 | |
49826d12 PH |
2584 | PH/12 Added log selector acl_warn_skipped (default on). |
2585 | ||
eba0c039 PH |
2586 | PH/13 After a successful wildlsearch lookup, discard the values of numeric |
2587 | variables because (a) they are in the wrong storage pool and (b) even if | |
2588 | they were copied, it wouldn't work properly because of the caching. | |
2589 | ||
a0d6ba8a PH |
2590 | PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length |
2591 | checking when decoding. Apparently there are clients that generate | |
2592 | overlong encoded strings. Why am I not surprised? | |
2593 | ||
f0917727 PH |
2594 | PH/15 If the first argument of "${if match_address" was not empty, but did not |
2595 | contain an "@" character, Exim crashed. Now it writes a panic log message | |
2596 | and treats the condition as false. | |
2597 | ||
096fee00 PH |
2598 | PH/16 In autoreply, treat an empty string for "once" the same as unset. |
2599 | ||
024bd3c2 PH |
2600 | PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve |
2601 | extension "envelope-auth". The code is finished and in agreement with | |
2602 | other implementations, but there is no documentation so far and in fact, | |
2603 | nobody wrote the draft yet. This extension is currently #undef'ed, thus | |
2604 | not changing the active code. | |
2605 | ||
2606 | Print executed "if" and "elsif" statements when debugging is used. This | |
2607 | helps a great deal to understand what a filter does. | |
2608 | ||
2609 | Document more things not specified clearly in RFC3028. I had all this | |
2610 | sorted out, when out of a sudden new issues came to my mind. Oops." | |
2611 | ||
df199fec PH |
2612 | PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists |
2613 | (Bugzilla #53). | |
2614 | ||
d27f1df3 PH |
2615 | PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated |
2616 | canonical form (as documented). However, after a host name lookup from | |
2617 | the IP address, check_host() was doing a simple string comparison with | |
2618 | addresses acquired from the DNS when checking that the found name did | |
2619 | have the original IP as one of its addresses. Since any found IPv6 | |
2620 | addresses are likely to be in abbreviated form, the comparison could | |
2621 | fail. Luckily, there already exists a function for doing the comparison | |
2622 | by converting both addresses to binary, so now that is used instead of | |
2623 | the text comparison. | |
2624 | ||
96776534 PH |
2625 | PH/20 There was another similar case to PH/19, when a complete host name was |
2626 | given in a host list; looking up its IP address could give an abbreviated | |
2627 | form, whereas the current host's name might or might not be abbreviated. | |
2628 | The same fix has been applied. | |
2629 | ||
5de37277 | 2630 | |
9a799bc0 PH |
2631 | Exim version 4.54 |
2632 | ----------------- | |
2633 | ||
2634 | PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was | |
2635 | set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not. | |
2636 | It now does. | |
2637 | ||
99a4b039 PH |
2638 | PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on |
2639 | the CVS lines, and there was a missing #if HAVE_IPV6 in host.c. | |
2640 | ||
2641 | PH/03 Typo: missing ".o" in src/pcre/Makefile. | |
2642 | ||
4b233853 PH |
2643 | PH/04 Tighten up "personal" tests: Instead of testing for any "List-" |
2644 | header line, restrict the check to what is listed in RFCs 2369 and 2929. | |
2645 | Also, for "Auto-Submitted", treat anything other than "no" as | |
2646 | non-personal, in accordance with RFC 3834. (Previously it treated | |
2647 | anything starting "auto-" as non-personal.) | |
2648 | ||
8857ccfd PH |
2649 | TF/01 The control=submission/name=... option had a problem with syntax |
2650 | errors if the name included a slash character. The /name= option | |
2651 | now slurps the rest of the string, so it can include any characters | |
2652 | but it must come last in the list of options (after /sender_retain | |
2653 | or /domain=). | |
2654 | ||
433a2980 PH |
2655 | PH/05 Some modifications to the interface to the fake nameserver for the new |
2656 | testing suite. | |
2657 | ||
3e46c1aa | 2658 | |
9a799bc0 | 2659 | |
e3a311ba TK |
2660 | Exim version 4.53 |
2661 | ----------------- | |
2662 | ||
2663 | TK/01 Added the "success_on_redirect" address verification option. See | |
2664 | NewStuff for rationale and an example. | |
2665 | ||
13b685f9 PH |
2666 | PH/01 Added support for SQLite, basic code supplied by David Woodhouse. |
2667 | ||
395ff96d PH |
2668 | PH/02 Patch to exigrep to allow it to work on syslog lines. |
2669 | ||
5b68f6e4 PH |
2670 | PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of |
2671 | fread() to skip over the body file's header line, because in Cygwin the | |
2672 | header line is locked and is inaccessible. | |
2673 | ||
1ab52c69 PH |
2674 | PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both |
2675 | co-exist for some time) to make it clear that it is the Exim ID that is | |
2676 | referenced, not the Message-ID: header line. | |
2677 | ||
b07e6aa3 PH |
2678 | PH/05 Replaced all Tom's calls to snprintf() with calls to the internal |
2679 | string_format() function, because snprintf() does not exist on all | |
2680 | operating systems. | |
2681 | ||
254e032f PH |
2682 | PH/06 The use of forbid_filter_existstest now also locks out the use of the |
2683 | ${stat: expansion item. | |
2684 | ||
3af76a81 PH |
2685 | PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP |
2686 | protocol synchronization error", to keep the pedants happy. | |
2687 | ||
2548ba04 PH |
2688 | PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as |
2689 | well as for IRIX systems, when gcc is being used. See the host.c source | |
2690 | file for comments. | |
2691 | ||
b6c6011d PH |
2692 | PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer. |
2693 | ||
cf39cf57 PH |
2694 | PH/10 Named domain lists were not working if used in a queue_smtp_domains |
2695 | setting. | |
2696 | ||
f1513293 PH |
2697 | PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp |
2698 | transport and to the smtp transport in LMTP mode. | |
2699 | ||
727549a4 PH |
2700 | TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway). |
2701 | ||
af46795e PH |
2702 | PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to |
2703 | run a filter in a subprocess. This could lead to confusion in subsequent | |
2704 | lookups in the parent process. There should also be a search_tidyup() at | |
2705 | the end of the subprocess. | |
2706 | ||
d7b47fd0 PH |
2707 | PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true |
2708 | only if the host matched helo_try_verify_hosts, which caused the | |
2709 | verification to occur when the EHLO/HELO command was issued. The ACL just | |
2710 | tested the remembered result. Now, if a previous verification attempt has | |
2711 | not happened, "verify = helo" does it there and then. | |
2712 | ||
ee744174 JJ |
2713 | JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04) |
2714 | ||
b582ab87 PH |
2715 | TK/03 Fix log output including CR from clamd. |
2716 | ||
41a13e0a PH |
2717 | PH/14 A reference to $reply_address when Reply-to: was empty and From: did not |
2718 | exist provoked a memory error which could cause a segfault. | |
2719 | ||
f625cc5a PH |
2720 | PH/15 Installed PCRE 6.2 |
2721 | ||
2722 | PH/17 Defined BIND_8_COMPAT in the Darwin os.h file. | |
2723 | ||
21f7af35 PH |
2724 | PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause |
2725 | of the problem. Specifically, suggested +O2 rather than +O1 for the | |
2726 | HP-UX compiler. | |
2727 | ||
31480e42 PH |
2728 | PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch). |
2729 | ||
2d280592 PH |
2730 | PH/20 If a delivery was routed to a non-standard port by means of an SRV |
2731 | record, the port was not correctly logged when the outgoing_port log | |
2732 | selector was set (it logged the transort's default port). | |
2733 | ||
7cd1141b PH |
2734 | PH/21 Added support for host-specific ports to manualroute, queryprogram, |
2735 | fallback_hosts, and "hosts" in the smtp transport. | |
2736 | ||
2737 | PH/22 If the log selector "outgoing_port" is set, the port is now also given on | |
2738 | host errors such as "Connection refused". | |
2739 | ||
750af86e PH |
2740 | PH/23 Applied a patch to fix problems with exim-4.52 while doing radius |
2741 | authentication with radiusclient 0.4.9: | |
2742 | ||
2743 | - Error returned from rc_read_config was caught wrongly | |
2744 | - Username/password not passed on to radius server due to wrong length. | |
2745 | ||
2746 | The presumption is that some radiusclient API changes for 4.51/PH/17 | |
2747 | were not taken care of correctly. The code is still untested by me (my | |
2748 | Linux distribution still has 0.3.2 of radiusclient), but it was | |
2749 | contributed by a Radius user. | |
2750 | ||
2751 | PH/24 When doing a callout, the value of $domain wasn't set correctly when | |
2752 | expanding the "port" option of the smtp transport. | |
2753 | ||
4304270b TK |
2754 | TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met |
2755 | while reading a MIME header. Thanks to Tom Hughes for a patch. | |
2756 | ||
750af86e PH |
2757 | PH/24 Include config.h inside local_scan.h so that configuration settings are |
2758 | available. | |
2759 | ||
64ffc24f PH |
2760 | PH/25 Make $smtp_command_argument available after all SMTP commands. This means |
2761 | that in an ACL for RCPT (for example), you can examine exactly what was | |
2762 | received. | |
2763 | ||
5dd9625b PH |
2764 | PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO |
2765 | commands, but it was not correctly comparing the address with the actual | |
2766 | client host address. Thus, it would show the EHLO address in Received: | |
2767 | header lines when this was not necessary. | |
2768 | ||
5591031b PH |
2769 | PH/27 Added the % operator to ${eval:}. |
2770 | ||
ba18e66a PH |
2771 | PH/28 Exim tries to create and chdir to its spool directory when it starts; |
2772 | it should be ignoring failures (because with -C, for example, it has lost | |
2773 | privilege). It wasn't ignoring creation failures other than "already | |
2774 | exists". | |
2775 | ||
9cec981f PH |
2776 | PH/29 Added "crypteq" to the list of supported features that Exim outputs when |
2777 | -bV or -d is used. | |
2778 | ||
aa2b5c79 PH |
2779 | PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed |
2780 | because an input line was too long, either on its own, or by virtue of | |
1509d3a8 PH |
2781 | too many continuations, the temporary file was not being removed, and the |
2782 | return code was incorrect. | |
aa2b5c79 | 2783 | |
48a53b7f PH |
2784 | PH/31 Missing "BOOL" in function definition in filtertest.c. |
2785 | ||
1c59d63b PH |
2786 | PH/32 Applied Sieve patches from the maintainer. |
2787 | ||
671012da TK |
2788 | TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67. |
2789 | ||
1509d3a8 PH |
2790 | PH/33 Added "verify = not_blind". |
2791 | ||
2792 | PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in | |
2793 | Local/Makefile (with some defaults set). These are used in built scripts | |
2794 | such as exicyclog, but they have never been used in the exim_install | |
2795 | script (though there are many overriding facilities there). I have | |
2796 | arranged that the exim_install script now takes note of these two | |
2797 | settings. | |
2798 | ||
2799 | PH/35 Installed configuration files for Dragonfly. | |
2800 | ||
2fe1a124 PH |
2801 | PH/36 When a locally submitted message by a trusted user did not contain a |
2802 | From: header, and the sender address was obtained from -f or from an SMTP | |
2803 | MAIL command, and the trusted user did not use -F to supply a sender | |
2804 | name, $originator_name was incorrectly used when constructing a From: | |
2805 | header. Furthermore, $originator_name was used for submission mode | |
2806 | messages from external hosts without From: headers in a similar way, | |
2807 | which is clearly wrong. | |
2808 | ||
8800895a PH |
2809 | PH/37 Added control=suppress_local_fixups. |
2810 | ||
ccfdb010 PH |
2811 | PH/38 When log_selector = +received_sender was set, and the addition of the |
2812 | sender made the log line's construction buffer exactly full, or one byte | |
2813 | less than full, an overflow happened when the terminating "\n" was | |
2814 | subsequently added. | |
2815 | ||
1130bfb0 PH |
2816 | PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry |
2817 | when the result of a list match is failure because a DNS lookup failed. | |
2818 | ||
ebcb507f PH |
2819 | PH/40 RM_COMMAND is now used in the building process. |
2820 | ||
c35e155c PH |
2821 | PH/41 Added a "distclean" target to the top-level Makefile; it deletes all |
2822 | the "build-* directories that it finds. | |
2823 | ||
95d1f782 PH |
2824 | PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP |
2825 | address in a domain literal was a prefix of an interface address. | |
2826 | ||
fd6de02e PH |
2827 | PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains |
2828 | when verifying a sender address, unless rewrite_headers is false. | |
2829 | ||
58de37c5 PH |
2830 | PH/44 Wrote a long comment about why errors_to addresses are verified as |
2831 | recipients, not senders. | |
2832 | ||
261cf466 TF |
2833 | TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when |
2834 | the ratelimit ACL was added. | |
2835 | ||
3ee512ff PH |
2836 | PH/45 Added $smtp_command for the full command (cf $smtp_command_argument). |
2837 | ||
e08c430f PH |
2838 | PH/46 Added extra information about PostgreSQL errors to the error string. |
2839 | ||
bef5a11f PH |
2840 | PH/47 Added an interface to a fake DNS resolver for use by the new test suite, |
2841 | avoiding the need to install special zones in a real server. This is | |
2842 | backwards compatible; if it can't find the fake resolver, it drops back. | |
2843 | Thus, both old and new test suites can be run. | |
2844 | ||
7546de58 TF |
2845 | TF/02 Added util/ratelimit.pl |
2846 | ||
e5d5a95f TF |
2847 | TF/03 Minor fix to the ratelimit code to improve its behaviour in case the |
2848 | clock is set back in time. | |
2849 | ||
2e88a017 TF |
2850 | TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian |
2851 | Candler <B.Candler@pobox.com>. | |
2852 | ||
a5f65aa4 TF |
2853 | TF/05 The fix for PH/43 was not completely correct; widen_domains is always |
2854 | OK for addresses that are the result of redirections. | |
2855 | ||
e7726cbf PH |
2856 | PH/48 A number of further additions for the benefit of the new test suite, |
2857 | including a fake gethostbyname() that interfaces to the fake DNS resolver | |
2858 | (see PH/47 above). | |
2859 | ||
a7fdad5b TF |
2860 | TF/06 The fix for widen_domains has also been applied to qualify_single and |
2861 | search_parents which are the other dnslookup options that can cause | |
2862 | header rewrites. | |
2863 | ||
6af56900 PH |
2864 | PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter |
2865 | type ("H"). | |
2866 | ||
0925ede6 PH |
2867 | PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable. |
2868 | ||
66afa403 TF |
2869 | TF/07 Exim produced the error message "an SRV record indicated no SMTP |
2870 | service" if it encountered an MX record with an empty target hostname. | |
2871 | The message is now "an MX or SRV record indicated no SMTP service". | |
2872 | ||
0154e85a TF |
2873 | TF/08 Change PH/13 introduced the possibility that verify=helo may defer, |
2874 | if the DNS of the sending site is misconfigured. This is quite a | |
2875 | common situation. This change restores the behaviour of treating a | |
2876 | helo verification defer as a failure. | |
2877 | ||
16f12c76 PH |
2878 | PH/51 If self=fail was set on a router, the bounce message did not include the |
2879 | actual error message. | |
2880 | ||
bbe902f0 | 2881 | |
e5a9dba6 PH |
2882 | Exim version 4.52 |
2883 | ----------------- | |
2884 | ||
2885 | TF/01 Added support for Client SMTP Authorization. See NewStuff for details. | |
2886 | ||
22c3b60b PH |
2887 | PH/01 When a transport filter timed out in a pipe delivery, and the pipe |
2888 | command itself ended in error, the underlying message about the transport | |
2889 | filter timeout was being overwritten with the pipe command error. Now the | |
2890 | underlying error message should be appended to the second error message. | |
2891 | ||
06a9b4b5 PH |
2892 | TK/01 Fix poll() being unavailable on Mac OSX 10.2. |
2893 | ||
c1ac6996 PH |
2894 | PH/02 Reduce the amount of output that "make" produces by default. Full output |
2895 | can still be requested. | |
2896 | ||
9c7a242c PH |
2897 | PH/03 The warning log line about a condition test deferring for a "warn" verb |
2898 | was being output only once per connection, rather than after each | |
2899 | occurrence (because it was using the same function as for successful | |
2900 | "warn" verbs). This seems wrong, so I have changed it. | |
2901 | ||
87ba3f5f PH |
2902 | TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that |
2903 | it should not have, which might have caused a crash in the right | |
2904 | circumstances, but probably never did. | |
2905 | ||
2906 | PH/04 Installed a modified version of Tony Finch's patch to make submission | |
2907 | mode fix the return path as well as the Sender: header line, and to | |
2908 | add a /name= option so that you can make the user's friendly name appear | |
2909 | in the header line. | |
2910 | ||
29aba418 TF |
2911 | TF/03 Added the control = fakedefer ACL modifier. |
2912 | ||
fe0dab11 TF |
2913 | TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to |
2914 | Mark Lowes for thorough testing. | |
870f6ba8 | 2915 | |
11d337a4 TK |
2916 | TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0. |
2917 | ||
2918 | TK/03 Merged latest SRS patch from Miles Wilton. | |
2919 | ||
415c8f3b PH |
2920 | PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts |
2921 | with the definition in sysexits.h (which is #included earlier). | |
2922 | Fortunately, Exim does not actually use EX_OK. The code used to try to | |
2923 | preserve the sysexits.h value, by assumimg that macro definitions were | |
2924 | scanned for macro replacements. I have been disabused of this notion, | |
2925 | so now the code just undefines EX_OK before #including unistd.h. | |
11d337a4 | 2926 | |
958541e9 PH |
2927 | PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout |
2928 | in the smtp transport. When a block could not be written in a single | |
2929 | write() function, the timeout was being re-applied to each part-write. | |
2930 | This seems wrong - if the receiver was accepting one byte at a time it | |
2931 | would take for ever. The timeout is now adjusted when this happens. It | |
2932 | doesn't have to be particularly precise. | |
2933 | ||
c206415f TK |
2934 | TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for |
2935 | details. Thanks to Chris Webb <chris@arachsys.com> for the patch! | |
2936 | ||
2a4be8f9 PH |
2937 | PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster> |
2938 | without a domain if the check to <postmaster@domain> fails. | |
2939 | ||
1cba11c5 SC |
2940 | SC/01 Eximstats: added -xls and the ability to specify output files |
2941 | (patch written by Frank Heydlauf). | |
2942 | ||
2943 | SC/02 Eximstats: use FileHandles for outputing results. | |
2944 | ||
2945 | SC/03 Eximstats: allow any combination of xls, txt, and html output. | |
2946 | ||
2947 | SC/04 Eximstats: fixed display of large numbers with -nvr option | |
2948 | ||
2949 | SC/05 Eximstats: fixed merging of reports with empty tables. | |
2950 | ||
2951 | SC/06 Eximstats: added the -include_original_destination flag | |
2952 | ||
2953 | SC/07 Eximstats: removed tabs and trailing whitespace. | |
2954 | ||
1005d00e TK |
2955 | TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller. |
2956 | ||
2957 | TK/06 MBOX spool code: Add real "From " MBOX separator line | |
2958 | so the .eml file is really in mbox format (even though | |
2959 | most programs do not really care). Patch from Alex Miller. | |
2960 | ||
2961 | TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers. | |
2962 | The latter is generated from $received_to and is only set if the | |
2963 | message has one envelope recipient. SA can use these headers, | |
2964 | obviously out-of-the-box. Patch from Alex Miller. | |
2965 | ||
9b4768fa PH |
2966 | PH/08 The ${def test on a variable was returning false if the variable's |
2967 | value was "0", contrary to what the specification has always said! | |
2968 | The result should be true unless the variable is empty. | |
2969 | ||
2970 | PH/09 The syntax error of a character other than { following "${if | |
2971 | def:variable_name" (after optional whitespace) was not being diagnosed. | |
2972 | An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an | |
2973 | accidental colon was present, for example, could give incorrect results. | |
2974 | ||
0d7eb84a PH |
2975 | PH/10 Tidied the code in a number of places where the st_size field of a stat() |
2976 | result is used (not including appendfile, where other changes are about | |
2977 | to be made). | |
2978 | ||
2979 | PH/11 Upgraded appendfile so that quotas larger than 2G are now supported. | |
2980 | This involved changing a lot of size variables from int to off_t. It | |
2981 | should work with maildirs and everything. | |
2982 | ||
40727bee TK |
2983 | TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of |
2984 | spamd dying while we are connected to it. | |
2985 | ||
554d2369 TF |
2986 | TF/05 Fixed a ${extract error message typo reported by Jeremy Harris |
2987 | <jgh@wizmail.org> | |
2988 | ||
1f922db1 PH |
2989 | PH/12 Applied Alex Kiernan's patch for the API change for the error callback |
2990 | function for BDB 4.3. | |
2991 | ||
ef213c3b PH |
2992 | PH/13 Changed auto_thaw such that it does not apply to bounce messages. |
2993 | ||
8ac170f3 PH |
2994 | PH/14 Imported PCRE 6.0; this was more than just a trivial operation because |
2995 | the sources for PCRE have been re-arranged and more files are now | |
2996 | involved. | |
2997 | ||
b1c749bb PH |
2998 | PH/15 The code I had for printing potentially long long variables in PH/11 |
2999 | above was not the best (it lost precision). The length of off_t variables | |
3000 | is now inspected at build time, and an appropriate printing format (%ld | |
c6c2dc1d PH |
3001 | or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T |
3002 | to be "long long int" or "long int". This is needed for the internal | |
3003 | formatting function string_vformat(). | |
b1c749bb | 3004 | |
4aac9b49 PH |
3005 | PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in |
3006 | the configuration file to be ":syslog", then the script "guesses" where | |
3007 | the logs files are, rather than using the compiled in default. In our | |
3008 | case the guess is not the same as the compiled default, so the script | |
3009 | suddenly stopped working when I started to use syslog. The patch checks | |
3010 | to see if log_file_path is "". If so, it attempts to read it from exim | |
3011 | with no configuration file to get the compiled in version, before it | |
3012 | falls back to the previous guessing code." | |
3013 | ||
294520c8 TK |
3014 | TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with |
3015 | implementing BATV in an Exim configuration. See NewStuff for the gory | |
3016 | details. | |
3017 | ||
5bd022fe PH |
3018 | PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and |
3019 | Makefile that are specific to HP-UX. | |
3020 | ||
90e9ce59 PH |
3021 | PH/18 If the "use_postmaster" option was set for a recipient callout together |
3022 | with the "random" option, the postmaster address was used as the MAIL | |
3023 | FROM address for the random test, but not for the subsequent recipient | |
3024 | test. It is now used for both. | |
3025 | ||
5ea81592 PH |
3026 | PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The |
3027 | patch removes a few documentation additions to RFC 3028, because the | |
3028 | latest draft now contains them. It adds the new en;ascii-case comparator | |
3029 | and a new error check for 8bit text in MIME parts. Comparator and | |
3030 | require names are now matched exactly. I enabled the subaddress | |
3031 | extension, but it is not well tested yet (read: it works for me)." | |
3032 | ||
c6c2dc1d PH |
3033 | PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to |
3034 | rework some of the code of TK/09 above to avoid the hardwired use of | |
3035 | "%lld" and "long long". Replaced the call to snprintf() with a call to | |
3036 | string_vformat(). | |
3037 | ||
fffffe4c PH |
3038 | PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX |
3039 | records point to non-existent hosts", "retry timeout exceeded", and | |
3040 | "retry time not reached for any host after a long failure period". | |
ca02eafb | 3041 | |
9a26b6b2 PH |
3042 | PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with |
3043 | experimental DomainKeys support: | |
3044 | ||
3045 | (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken. | |
3046 | (2) On an error such as an illegally used "control", the wrong name for | |
3047 | the control was given. | |
3048 | ||
3049 | These problems did NOT occur unless DomainKeys support was compiled. | |
3050 | ||
4aee0225 PH |
3051 | PH/23 Added daemon_startup_retries and daemon_startup_sleep. |
3052 | ||
32d668a5 PH |
3053 | PH/24 Added ${if match_ip condition. |
3054 | ||
8187c3f3 PH |
3055 | PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints |
3056 | databases so that it will be absolutely obvious if a crash occurs in the | |
3057 | DB library. This is a regular occurrence (often caused by mis-matched | |
3058 | db.h files). | |
3059 | ||
ff790e47 | 3060 | PH/26 Insert a lot of missing (void) casts for functions such as chown(), |
f1e894f3 PH |
3061 | chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were |
3062 | picked up on a user's system that detects such things. There doesn't seem | |
3063 | to be a gcc warning option for this - only an attribute that has to be | |
3064 | put on the function's prototype. It seems that in Fedora Core 4 they have | |
3065 | set this on a number of new functions. No doubt there will be more in due | |
3066 | course. | |
ff790e47 | 3067 | |
5417f6d1 PH |
3068 | PH/27 If a dnslookup or manualroute router is set with verify=only, it need not |
3069 | specify a transport. However, if an address that was verified by such a | |
3070 | router was the subject of a callout, Exim crashed because it tried to | |
3071 | read the rcpt_include_affixes from the non-existent transport. Now it | |
3072 | just assumes that the setting of that option is false. This bug was | |
3073 | introduced by 4.51/PH/31. | |
3074 | ||
59cf8544 PH |
3075 | PH/28 Changed -d+all to exclude +memory, because that information is very |
3076 | rarely of interest, but it makes the output a lot bigger. People tend to | |
3077 | do -d+all out of habit. | |
3078 | ||
e7ad8a65 PH |
3079 | PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the |
3080 | code in os-type was giving problems when libc.so lives in lib64, like on | |
3081 | x86_64 Fedora Core. | |
3082 | ||
ade42478 PH |
3083 | PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These |
3084 | aren't the modern standard, and it seems that some systems' include files | |
3085 | don't always have them. Exim was already checking for some of the newer | |
3086 | ones like T_AAAA, and defining it itself. I've added checks for all the | |
3087 | record types that Exim uses. | |
3088 | ||
182ad5cf PH |
3089 | PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was |
3090 | not automatically generating a new one, as it is supposed to. This | |
3091 | prevented TLS from working. If the file did exist, but contained invalid | |
3092 | data, a new version was generated, as expected. It was only the case of a | |
3093 | non-existent file that was broken. | |
3094 | ||
b0d9fc80 TK |
3095 | TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction |
3096 | with a change in libdomainkeys > 0.64. | |
3097 | ||
3098 | TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved | |
3099 | from DNS. If the selector record carries the flag, it now has | |
3100 | precedence over the domain-wide flag. | |
3101 | ||
3102 | TK/12 Cleared some compiler warnings related to SPF, SRS and DK code. | |
3103 | ||
47c7a64a PH |
3104 | PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as |
3105 | the use of a port name that isn't defined in /etc/services) occurred, the | |
3106 | message was deferred as in a normal delivery, and thus remained on the | |
3107 | spool, instead of being failed because of the mua_wrapper setting. This | |
3108 | is now fixed, and I tidied up some of the mua_wrapper messages at the | |
3109 | same time. | |
3110 | ||
a388bce4 SC |
3111 | SC/08 Eximstats: whilst parsing the mainlog(s), store information about |
3112 | the messages in a hash of arrays rather than using individual hashes. | |
3113 | This is a bit cleaner and results in dramatic memory savings, albeit | |
3114 | at a slight CPU cost. | |
3115 | ||
3116 | SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags | |
3117 | as requested by Marc Sherman. | |
3118 | ||
3119 | SC/10 Eximstats: added histograms for user specified patterns as requested | |
3120 | by Marc Sherman. | |
3121 | ||
0793e4ed SC |
3122 | SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified. |
3123 | ||
c58b88df PH |
3124 | PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of |
3125 | fopen() in the content-scanning modules that did not already have it. | |
3126 | ||
e7ad8a65 | 3127 | |
7982096b PH |
3128 | Exim version 4.51 |
3129 | ----------------- | |
3130 | ||
1a46a8c5 PH |
3131 | TK/01 Added Yahoo DomainKeys support via libdomainkeys. See |
3132 | doc/experimental-spec.txt for details. (http://domainkeys.sf.net) | |
3133 | ||
2f079f46 | 3134 | TK/02 Fix ACL "control" statement not being available in MIME ACL. |
1a46a8c5 PH |
3135 | |
3136 | TK/03 Fix ACL "regex" condition not being available in MIME ACL. | |
3137 | ||
3138 | PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used | |
3139 | to test Sieve filters that use "vacation". | |
3140 | ||
3141 | PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch | |
3142 | that changes the way the GnuTLS parameters are stored in the cache file. | |
3143 | The new format can be generated externally. For backward compatibility, | |
3144 | if the data in the cache doesn't make sense, Exim assumes it has read an | |
3145 | old-format file, and it generates new data and writes a new file. This | |
3146 | means that you can't go back to an older release without removing the | |
3147 | file. | |
3148 | ||
3149 | PH/03 A redirect router that has both "unseen" and "one_time" set does not | |
3150 | work if there are any delivery delays because "one_time" forces the | |
3151 | parent to be marked "delivered", so its unseen clone is never tried | |
3152 | again. For this reason, Exim now forbids the simultaneous setting of | |
3153 | these two options. | |
3154 | ||
3155 | PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are | |
3156 | redirected to themselves ("homonym" addresses). Read the long ChangeLog | |
3157 | entry if you want to know the details. The fix, however, neglected to | |
3158 | consider the case when local delivery batching is involved. The test for | |
3159 | "previously delivered" was not happening when checking to see if an | |
3160 | address could be batched with a previous (undelivered) one; under | |
3161 | certain circumstances this could lead to multiple deliveries to the same | |
c2c19e9d | 3162 | address. |
1a46a8c5 PH |
3163 | |
3164 | PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T | |
3165 | in its include files, and this causes problems building Exim. | |
3166 | ||
3167 | PH/06 A number of "verify =" ACL conditions have no options (e.g. verify = | |
3168 | header_syntax) but Exim was just ignoring anything given after a slash. | |
3169 | In particular, this caused confusion with an attempt to use "verify = | |
3170 | reverse_host_lookup/defer_ok". An error is now given when options are | |
3171 | supplied for verify items that do not have them. (Maybe reverse_host_ | |
3172 | lookup should have a defer_ok option, but that's a different point.) | |
3173 | ||
3174 | PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as | |
3175 | defined by RFC 821) to 2048, because there were problems with some AUTH | |
3176 | commands, and RFC 1869 says the size should be increased for extended | |
3177 | SMTP commands that take arguments. | |
3178 | ||
3179 | PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony | |
3180 | Finch). | |
3181 | ||
3182 | PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an | |
3183 | "unknown" error; now it says that the functionality isn't in the binary. | |
8d67ada3 | 3184 | |
49c2d5ea PH |
3185 | PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in |
3186 | an address' error message when a string expansion fails (syntax or | |
f331f3b6 PH |
3187 | whatever). Otherwise the password may appear in the log. Following change |
3188 | PH/42 below, there is no longer a chance of it appearing in a bounce | |
3189 | message. | |
49c2d5ea | 3190 | |
bf759a8b PH |
3191 | PH/11 Installed exipick version 20050225.0 from John Jetmore. |
3192 | ||
83364d30 PH |
3193 | PH/12 If the last host in a fallback_hosts list was multihomed, only the first |
3194 | of its addresses was ever tried. (Bugzilla bug #2.) | |
3195 | ||
7999bbd7 PH |
3196 | PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed |
3197 | the result incorrectly in the debug output. (It correctly added a newline | |
3198 | to what was transported.) | |
3199 | ||
7dbf77c9 PH |
3200 | TF/01 Added $received_time. |
3201 | ||
74e0617f PH |
3202 | PH/14 Modified the default configuration to add an acl_smtp_data ACL, with |
3203 | commented out examples of how to interface to a virus scanner and to | |
3204 | SpamAssassin. Also added commented examples of av_scanner and | |
3205 | spamd_address settings. | |
3206 | ||
2f079f46 PH |
3207 | PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions |
3208 | and controls are allowed in which ACLs. There were a couple of minor | |
3209 | errors. Some of the entries in the conditions table (which is a table of | |
3210 | where they are NOT allowed) were getting very unwieldy; rewrote them as a | |
3211 | negation of where the condition IS allowed. | |
3212 | ||
8c841523 PH |
3213 | PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer. |
3214 | ||
7766a4f0 PH |
3215 | PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the |
3216 | header file does not have a version number, so I've had to invent a new | |
3217 | value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new | |
3218 | API. The code is untested by me (my Linux distribution still has 0.3.2 of | |
3219 | radiusclient), but it was contributed by a Radius user. | |
3220 | ||
8b417f2c PH |
3221 | PH/18 Installed Lars Mainka's patch for the support of CRL collections in |
3222 | files or directories, for OpenSSL. | |
3223 | ||
901f42cb PH |
3224 | PH/19 When an Exim process that is running as root has to create an Exim log |
3225 | file, it does so in a subprocess that runs as exim:exim so as to get the | |
3226 | ownership right at creation (otherwise, other Exim processes might see | |
3227 | the file with the wrong ownership). There was no test for failure of this | |
3228 | fork() call, which would lead to the process getting stuck as it waited | |
3229 | for a non-existent subprocess. Forks do occasionally fail when resources | |
3230 | run out. I reviewed all the other calls to fork(); they all seem to check | |
3231 | for failure. | |
3232 | ||
f9b9210e PH |
3233 | PH/20 When checking for unexpected SMTP input at connect time (before writing |
3234 | the banner), Exim was not dealing correctly with a non-positive return | |
3235 | from the read() function. If the client had disconnected by this time, | |
3236 | the result was a log entry for a synchronization error with an empty | |
3237 | string after "input=" when read() returned zero. If read() returned -1 | |
3238 | (an event I could not check), uninitialized data bytes were printed. | |
3239 | There were reports of junk text (parts of files, etc) appearing after | |
3240 | "input=". | |
3241 | ||
54cdb463 PH |
3242 | PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages. |
3243 | ||
cf00dad6 PH |
3244 | PH/22 Added support for macro redefinition, and (re)definition in between |
3245 | driver and ACL definitions. | |
3246 | ||
acb1b346 PH |
3247 | PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then |
3248 | forgetting to use the resulting value; it was using the unexpanded value. | |
3249 | ||
c5ddb310 PH |
3250 | PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it |
3251 | hadn't been configured. The fix is from Juergen Kreileder, who | |
3252 | understands it better than I do: | |
3253 | ||
3254 | "Here's what I see happening with three configured cyrus_sasl | |
3255 | authenticators configured (plain, login, cram-md5): | |
3256 | ||
3257 | On startup auth_cyrus_sasl_init() gets called for each of these. | |
3258 | This means three calls to sasl_listmech() without a specified mech_list. | |
3259 | => SASL tests which mechs of all available mechs actually work | |
3260 | => three warnings about OTP not working | |
3261 | => the returned list contains: plain, login, cram-md5, digest-md5, ... | |
3262 | ||
3263 | With the patch, sasl_listmech() also gets called three times. But now | |
3264 | SASL's mech_list option is set to the server_mech specified in the the | |
3265 | authenticator. Or in other words, the answer from sasl_listmech() | |
3266 | gets limited to just the mech you're testing for (which is different | |
3267 | for each call.) | |
3268 | => the return list contains just 'plain' or 'login', 'cram-md5' or | |
3269 | nothing depending on the value of ob->server_mech. | |
3270 | ||
3271 | I've just tested the patch: Authentication still works fine, | |
3272 | unavailable mechs specified in the exim configuration are still | |
3273 | caught, and the auth.log warnings about OTP are gone." | |
3274 | ||
31619da6 PH |
3275 | PH/25 When debugging is enabled, the contents of the command line are added |
3276 | to the debugging output, even when log_selector=+arguments is not | |
3277 | specified. | |
3278 | ||
bebaf0fc PH |
3279 | PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the |
3280 | answer is "GNU", and only if the return is "GNU/something" is the answer | |
3281 | "Linux". | |
3282 | ||
475fe28a PH |
3283 | PH/27 $acl_verify_message is now set immediately after the failure of a |
3284 | verification in an ACL, and so is available in subsequent modifiers. In | |
3285 | particular, the message can be preserved by coding like this: | |
3286 | ||
3287 | warn !verify = sender | |
3288 | set acl_m0 = $acl_verify_message | |
3289 | ||
3290 | Previously, $acl_verify_message was set only while expanding "message" | |
3291 | and "log_message" when a very denied access. | |
3292 | ||
7e8bec7a PH |
3293 | PH/28 Modified OS/os.c-Linux with |
3294 | ||
3295 | -#ifndef OS_LOAD_AVERAGE | |
3296 | +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__) | |
3297 | ||
3298 | to make Exim compile on kfreebsd-gnu. (I'm totally confused about the | |
3299 | nomenclature these days.) | |
3300 | ||
e4a89c47 PH |
3301 | PH/29 Installed patch from the Sieve maintainer that adds the options |
3302 | sieve_useraddress and sieve_subaddress to the redirect router. | |
3303 | ||
5ca2a9a1 PH |
3304 | PH/30 In these circumstances: |
3305 | . Two addresses routed to the same list of hosts; | |
3306 | . First host does not offer TLS; | |
3307 | . First host accepts first address; | |
3308 | . First host gives temporary error to second address; | |
3309 | . Second host offers TLS and a TLS session is established; | |
3310 | . Second host accepts second address. | |
3311 | Exim incorrectly logged both deliveries with the TLS parameters (cipher | |
3312 | and peerdn, if requested) that were in fact used only for the second | |
3313 | address. | |
7e8bec7a | 3314 | |
c688b954 PH |
3315 | PH/31 When doing a callout as part of verifying an address, Exim was not paying |
3316 | attention to any local part prefix or suffix that was matched by the | |
3317 | router that accepted the address. It now behaves in the same way as it | |
3318 | does for delivery: the affixes are removed from the local part unless | |
3319 | rcpt_include_affixes is set on the transport. | |
3320 | ||
fed77020 PH |
3321 | PH/32 Add the sender address, as F=<...>, to the log line when logging a |
3322 | timeout during the DATA phase of an incoming message. | |
3323 | ||
7fe1560f PH |
3324 | PH/33 Sieve envelope tests were broken for match types other than :is. I have |
3325 | applied a patch sanctioned by the Sieve maintainer. | |
c688b954 | 3326 | |
ebb6e6d5 PH |
3327 | PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where |
3328 | the uid or gid is negative. A case of a negative gid caused this to be | |
3329 | noticed. The fix allows for either to be negative. | |
3330 | ||
9c4e8f60 PH |
3331 | PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code |
3332 | clutter, but the tables that are indexed by ACL_WHERE_xxx values had been | |
3333 | overlooked. | |
3334 | ||
3335 | PH/36 The change PH/12 above was broken. Fixed it. | |
3336 | ||
d7174846 PH |
3337 | PH/37 Exim used to check for duplicate addresses in the middle of routing, on |
3338 | the grounds that routing the same address twice would always produce the | |
3339 | same answer. This might have been true once, but it is certainly no | |
3340 | longer true now. Routing a child address may depend on the previous | |
3341 | routing that produced that child. Some complicated redirection strategies | |
3342 | went wrong when messages had multiple recipients, and made Exim's | |
3343 | behaviour dependent on the order in which the addresses were given. | |
3344 | ||
3345 | I have moved the duplicate checking until after the routing is complete. | |
3346 | Exim scans the addresses that are assigned to local and remote | |
3347 | transports, and removes any duplicates. This means that more work will be | |
3348 | done, as duplicates will always all be routed, but duplicates are | |
3349 | presumably rare, so I don't expect this is of any significance. | |
3350 | ||
3351 | For deliveries to pipes, files, and autoreplies, the duplicate checking | |
3352 | still happens during the routing process, since they are not going to be | |
3353 | routed further. | |
3354 | ||
cfe75fc3 PH |
3355 | PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner. |
3356 | It corrects a timeout issue with spamd. This is Ian's comment: "The | |
3357 | background is that sometimes spamd either never reads data from a | |
3358 | connection it has accepted, or it never writes response data. The exiscan | |
3359 | spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it | |
3360 | blindly assumes that writes won't block so it may never time out." | |
3361 | ||
be22d70e PH |
3362 | PH/39 Allow G after quota size as well as K and M. |
3363 | ||
0612b098 PH |
3364 | PH/40 The value set for $authenticated_id in an authenticator may not contain |
3365 | binary zeroes or newlines because the value is written to log lines and | |
3366 | to spool files. There was no check on this. Now the value is run through | |
3367 | the string_printing() function so that such characters are converted to | |
3368 | printable escape sequences. | |
3369 | ||
2e0c1448 PH |
3370 | PH/41 $message_linecount is a new variable that contains the total number of |
3371 | lines in the message. Compare $body_linecount, which is the count for the | |
3372 | body only. | |
3373 | ||
447d236c PH |
3374 | PH/42 Exim no longer gives details of delivery errors for specific addresses in |
3375 | bounce and delay warning messages, except in certain special cases, which | |
3376 | are as follows: | |
3377 | ||
3378 | (a) An SMTP error message from a remote host; | |
3379 | (b) A message specified in a :fail: redirection; | |
3380 | (c) A message specified in a "fail" command in a system filter; | |
3381 | (d) A message specified in a FAIL return from the queryprogram router; | |
3382 | (e) A message specified by the cannot_route_message router option. | |
3383 | ||
3384 | In these cases only, Exim does include the error details in bounce and | |
3385 | warning messages. There are also a few cases where bland messages such | |
3386 | as "unrouteable address" or "local delivery error" are given. | |
3387 | ||
d20976dc PH |
3388 | PH/43 $value is now also set for the "else" part of a ${run expansion. |
3389 | ||
f656d135 PH |
3390 | PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still |
3391 | being worked on, but at least Exim now implements the latest version to | |
3392 | play with." | |
3393 | ||
2e2a30b4 PH |
3394 | PH/45 In a pipe transport, although a timeout while waiting for the pipe |
3395 | process to complete was treated as a delivery failure, a timeout while | |
3396 | writing the message to the pipe was logged, but erroneously treated as a | |
3397 | successful delivery. Such timeouts include transport filter timeouts. For | |
3398 | consistency with the overall process timeout, these timeouts are now | |
3399 | treated as errors, giving rise to delivery failures by default. However, | |
3400 | there is now a new Boolean option for the pipe transport called | |
3401 | timeout_defer, which, if set TRUE, converts the failures into defers for | |
3402 | both kinds of timeout. A transport filter timeout is now identified in | |
3403 | the log output. | |
3404 | ||
9176e9f0 PH |
3405 | PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On |
3406 | systems where "make" and "gmake" are different, calling "gmake" at top | |
3407 | level broke things. I've arranged for the value of $(MAKE) to be passed | |
3408 | from the Makefile to this script so that it can call the same version of | |
3409 | "make". | |
3410 | ||
7982096b | 3411 | |
bbe902f0 PH |
3412 | A note about Exim versions 4.44 and 4.50 |
3413 | ---------------------------------------- | |
3414 | ||
3415 | Exim 4.50 was meant to be the next release after 4.43. It contains a lot of | |
3416 | changes of various kinds. As a consequence, a big documentation update was | |
3417 | needed. This delayed the release for rather longer than seemed good, especially | |
3418 | in the light of a couple of (minor) security issues. Therefore, the changes | |
3419 | that fixed bugs were backported into 4.43, to create a 4.44 maintenance | |
3420 | release. So 4.44 and 4.50 are in effect two different branches that both start | |
3421 | from 4.43. | |
3422 | ||
3423 | I have left the 4.50 change log unchanged; it contains all the changes since | |
3424 | 4.43. The change log for 4.44 is below; many of its items are identical to | |
3425 | those for 4.50. This seems to be the most sensible way to preserve the | |
3426 | historical information. | |
3427 | ||
3428 | ||
f7b63901 | 3429 | Exim version 4.50 |
495ae4b0 PH |
3430 | ----------------- |
3431 | ||
5fe762f6 PH |
3432 | 1. Minor wording change to the doc/README.SIEVE file. |
3433 | ||
139059f6 | 3434 | 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the |
5fe762f6 | 3435 | computation of the current number of files was incorrect. |
495ae4b0 | 3436 | |
7086e875 PH |
3437 | 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The |
3438 | bug fixed in 4.43/37 would have been diagnosed quickly if this had been in | |
3439 | place. | |
3440 | ||
35af9f61 PH |
3441 | 4. Give more explanation in the error message when the command for a transport |
3442 | filter fails to execute. | |
3443 | ||
b668c215 PH |
3444 | 5. There are several places where Exim runs a non-Exim command in a |
3445 | subprocess. The SIGUSR1 signal should be disabled for these processes. This | |
3446 | was being done only for the command run by the queryprogram router. It is | |
3447 | now done for all such subprocesses. The other cases are: ${run, transport | |
3448 | filters, and the commands run by the lmtp and pipe transports. | |
3449 | ||
a494b1e1 PH |
3450 | 6. Added CONFIGURE_GROUP build-time option. |
3451 | ||
3452 | 7. Some older OS have a limit of 256 on the maximum number of file | |
3453 | descriptors. Exim was using setrlimit() to set 1000 as a large value | |
3454 | unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these | |
3455 | systems. I've change it so that if it can't get 1000, it tries for 256. | |
35edf2ff | 3456 | |
c5fcb476 PH |
3457 | 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This |
3458 | was an oversight, and furthermore, ever since the addition of extra | |
3459 | controls (e.g. 4.43/32), the checks on when to allow different forms of | |
3460 | "control" were broken. There should now be diagnostics for all cases when a | |
3461 | control that does not make sense is encountered. | |
3462 | ||
69358f02 PH |
3463 | 9. Added the /retain_sender option to "control=submission". |
3464 | ||
5be20824 PH |
3465 | 10. $recipients is now available in the predata ACL (oversight). |
3466 | ||
eb2c0248 PH |
3467 | 11. Tidy the search cache before the fork to do a delivery from a message |
3468 | received from the command line. Otherwise the child will trigger a lookup | |
3469 | failure and thereby defer the delivery if it tries to use (for example) a | |
3470 | cached ldap connection that the parent has called unbind on. | |
3471 | ||
2a3eea10 PH |
3472 | 12. If verify=recipient was followed by verify=sender in a RCPT ACL, the value |
3473 | of $address_data from the recipient verification was clobbered by the | |
3474 | sender verification. | |
3475 | ||
3476 | 13. The value of address_data from a sender verification is now available in | |
3477 | $sender_address_data in subsequent conditions in the ACL statement. | |
3478 | ||
23c7ff99 PH |
3479 | 14. Added forbid_sieve_filter and forbid_exim_filter to the redirect router. |
3480 | ||
4deaf07d PH |
3481 | 15. Added a new option "connect=<time>" to callout options, to set a different |
3482 | connection timeout. | |
3483 | ||
926e1192 PH |
3484 | 16. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0 |
3485 | was its contents. (It was OK if the option was not defined at all.) | |
3486 | ||
650edc6f PH |
3487 | 17. A "Completed" log line is now written for messages that are removed from |
3488 | the spool by the -Mrm option. | |
3489 | ||
2c7db3f5 PH |
3490 | 18. New variables $sender_verify_failure and $recipient_verify_failure contain |
3491 | information about exactly what failed. | |
3492 | ||
3d235903 PH |
3493 | 19. Added -dd to debug only the daemon process. |
3494 | ||
7c7ad977 PH |
3495 | 20. Incorporated Michael Haardt's patch to ldap.c for improving the way it |
3496 | handles timeouts, both on the server side and network timeouts. Renamed the | |
3497 | CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility). | |
3498 | ||
981756db PH |
3499 | 21. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp". |
3500 | It is now set to "smtps". | |
3501 | ||
d4eb88df PH |
3502 | 22. $host_address is now set to the target address during the checking of |
3503 | ignore_target_hosts. | |
3504 | ||
3505 | 23. When checking ignore_target_hosts for an ipliteral router, no host name was | |
3506 | being passed; this would have caused $sender_host_name to have been used if | |
3507 | matching the list had actually called for a host name (not very likely, | |
3508 | since this list is usually IP addresses). A host name is now passed as | |
3509 | "[x.x.x.x]". | |
3510 | ||
7d468ab8 PH |
3511 | 24. Changed the calls that set up the SIGCHLD handler in the daemon to use the |
3512 | code that specifies a non-restarting handler (typically sigaction() in | |
3513 | modern systems) in an attempt to fix a rare and obscure crash bug. | |
3514 | ||
3515 | 25. Narrowed the window for a race in the daemon that could cause it to ignore | |
3516 | SIGCHLD signals. This is not a major problem, because they are used only to | |
3517 | wake it up if nothing else does. | |
3518 | ||
62c0818f PH |
3519 | 26. A malformed maildirsize file could cause Exim to calculate negative values |
3520 | for the mailbox size or file count. Odd effects could occur as a result. | |
3521 | The maildirsize information is now recalculated if the size or filecount | |
3522 | end up negative. | |
3523 | ||
26034054 PH |
3524 | 27. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this |
3525 | support for a long time. Removed HAVE_SYS_VFS_H. | |
3526 | ||
af66f652 PH |
3527 | 28. Installed the latest version of exipick from John Jetmore. |
3528 | ||
90af77f4 PH |
3529 | 29. In an address list, if the pattern was not a regular expression, an empty |
3530 | subject address (from a bounce message) matched only if the pattern was an | |
3531 | empty string. Non-empty patterns were not even tested. This was the wrong | |
3532 | because it is perfectly reasonable to use an empty address as part of a | |
3533 | database query. An empty address is now tested by patterns that are | |
3534 | lookups. However, all the other forms of pattern expect the subject to | |
3535 | contain a local part and a domain, and therefore, for them, an empty | |
3536 | address still always fails if the pattern is not itself empty. | |
3537 | ||
d8ef3577 PH |
3538 | 30. Exim went into a mad DNS loop when attempting to do a callout where the |
3539 | host was specified on an smtp transport, and looking it up yielded more | |
3540 | than one IP address. | |
3541 | ||
5cb8cbc6 PH |
3542 | 31. Re-factored the code for checking spool and log partition space into a |
3543 | function that finds that data and another that does the check. The former | |
3544 | is then used to implement four new variables: $spool_space, $log_space, | |
3545 | $spool_inodes, and $log_inodes. | |
3546 | ||
14702f5b PH |
3547 | 32. The RFC2047 encoding function was originally intended for short strings |
3548 | such as real names; it was not keeping to the 75-character limit for | |
3549 | encoded words that the RFC imposes. It now respects the limit, and | |
3550 | generates multiple encoded words if necessary. To be on the safe side, I | |
3551 | have increased the buffer size for the ${rfc2047: expansion operator from | |
3552 | 1024 to 2048 bytes. | |
3553 | ||
063b1e99 PH |
3554 | 33. It is now permitted to omit both strings after an "if" condition; if the |
3555 | condition is true, the result is "true". As before, when the second string | |
3556 | is omitted, a false condition yields an empty string. This makes it less | |
3557 | cumbersome to write custom ACL and router conditions. | |
3558 | ||
652e1b65 PH |
3559 | 34. Failure to deliver a bounce message always caused it to be frozen, even if |
3560 | there was an errors_to setting on the router. The errors_to setting is now | |
3561 | respected. | |
3562 | ||
6f0c9a4f PH |
3563 | 35. If an IPv6 address is given for -bh or -bhc, it is now converted to the |
3564 | canonical form (fully expanded) before being placed in | |
3565 | $sender_host_address. | |
3566 | ||
33397d19 PH |
3567 | 36. The table in the code that translates DNS record types into text (T_A to |
3568 | "A" for instance) was missing entries for NS and CNAME. It is just possible | |
3569 | that this could have caused confusion if both these types were looked up | |
3570 | for the same domain, because the text type is used as part of Exim's | |
3571 | per-process caching. But the chance of anyone hitting this buglet seems | |
3572 | very small. | |
3573 | ||
7bb56e1f PH |
3574 | 37. The dnsdb lookup has been extended in a number of ways. |
3575 | ||
3576 | (1) There is a new type, "zns", which walks up the domain tree until it | |
3577 | finds some nameserver records. It should be used with care. | |
3578 | ||
ea3bc19b PH |
3579 | (2) There is a new type, "mxh", which is like "mx" except that it returns |
3580 | just the host names, not the priorities. | |
3581 | ||
3582 | (3) It is now possible to give a list of domains (or IP addresses) to be | |
ff4dbb19 PH |
3583 | looked up. The behaviour when one of the lookups defers can be |
3584 | controlled by a keyword. | |
7bb56e1f | 3585 | |
ea3bc19b | 3586 | (4) It is now possible to specify the separator character for use when |
7bb56e1f | 3587 | multiple records are returned. |
33397d19 | 3588 | |
0bcb2a0e PH |
3589 | 38. The dnslists ACL condition has been extended: it is now possible to supply |
3590 | a list of IP addresses and/or domains to be looked up in a particular DNS | |
3591 | domain. | |
3592 | ||
2ac0e484 PH |
3593 | 39. Added log_selector=+queue_time_overall. |
3594 | ||
4e1fde53 PH |
3595 | 40. When running the queue in the test harness, wait just a tad after forking a |
3596 | delivery process, to get repeatability of debugging output. | |
3597 | ||
de365ded PH |
3598 | 41. Include certificate and key file names in error message when GnuTLS fails |
3599 | to set them up, because the GnuTLS error message doesn't include the name | |
3600 | of the failing file when there is a problem reading it. | |
3601 | ||
f05da2e8 PH |
3602 | 42. Allow both -bf and -bF in the same test run. |
3603 | ||
d6453af2 PH |
3604 | 43. Did the same fix as 41 above for OpenSSL, which had the same infelicity. |
3605 | ||
f7b63901 PH |
3606 | 44. The "Exiscan patch" is now merged into the mainline Exim source. |
3607 | ||
3608 | 45. Sometimes the final signoff response after QUIT could fail to get | |
3609 | transmitted in the non-TLS case. Testing !tls_active instead of tls_active | |
3610 | < 0 before doing a fflush(). This bug looks as though it goes back to the | |
3611 | introduction of TLS in release 3.20, but "sometimes" must have been rare | |
3612 | because the tests only now provoked it. | |
3613 | ||
a444213a PH |
3614 | 46. Reset the locale to "C" after calling embedded Perl, in case it was changed |
3615 | (this can affect the format of dates). | |
3616 | ||
0ec020ea PH |
3617 | 47. exim_tidydb, when checking for the continued existence of a message for |
3618 | which it has found a message-specific retry record, was not finding | |
3619 | messages that were in split spool directories. Consequently, it was | |
3620 | deleting retry records that should have stayed in existence. | |
3621 | ||
b1206957 PH |
3622 | 48. Steve fixed some bugs in eximstats. |
3623 | ||
3624 | 49. The SPA authentication driver was not abandoning authentication and moving | |
3625 | on to the next authenticator when an expansion was forced to fail, | |
3626 | contradicting the general specification for all authenticators. Instead it | |
3627 | was generating a temporary error. It now behaves as specified. | |
3628 | ||
26dd5a95 PH |
3629 | 50. The default ordering of permitted cipher suites for GnuTLS was pessimal |
3630 | (the order specifies the preference for clients). The order is now AES256, | |
3631 | AES128, 3DES, ARCFOUR128. | |
3632 | ||
343b2385 PH |
3633 | 51. Small patch to Sieve code - explicitly set From: when generating an |
3634 | autoreply. | |
3635 | ||
1c5466b9 PH |
3636 | 52. Exim crashed if a remote delivery caused a very long error message to be |
3637 | recorded - for instance if somebody sent an entire SpamAssassin report back | |
3638 | as a large number of 550 error lines. This bug was coincidentally fixed by | |
3639 | increasing the size of one of Exim's internal buffers (big_buffer) that | |
3640 | happened as part of the Exiscan merge. However, to be on the safe side, I | |
3641 | have made the code more robust (and fixed the comments that describe what | |
3642 | is going on). | |
3643 | ||
55ee9ee3 PH |
3644 | 53. Now that there can be additional text after "Completed" in log lines (if |
3645 | the queue_time_overall log selector is set), a one-byte patch to exigrep | |
3646 | was needed to allow it to recognize "Completed" as not the last thing in | |
3647 | the line. | |
3648 | ||
d38f8232 PH |
3649 | 54. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A |
3650 | patch that reportedly fixes this has been added. I am not expert enough to | |
3651 | create a test for it. This is what the patch creator wrote: | |
3652 | ||
3653 | "I found a little strange behaviour of ldap code when working with | |
3654 | Windows 2003 AD Domain, where users was placed in more than one | |
3655 | Organization Units. When I tried to give exim partial DN, the exit code | |
3656 | of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE. | |
3657 | But simultaneously result of request was absolutely normal ldap result, | |
3658 | so I produce this patch..." | |
3659 | ||
3295e65b PH |
3660 | Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_ |
3661 | REFERENCE, so I have modified the code to exclude the patch when that macro | |
3662 | is not defined. | |
3663 | ||
7102e136 PH |
3664 | 55. Some experimental protocols are using DNS PTR records for new purposes. The |
3665 | keys for these records are domain names, not reversed IP addresses. The | |
b975ba52 PH |
3666 | dnsdb PTR lookup now tests whether its key is an IP address. If not, it |
3667 | leaves it alone. Component reversal etc. now happens only for IP addresses. | |
ea3a6f44 | 3668 | CAN-2005-0021 |
7102e136 | 3669 | |
3ca0ba97 PH |
3670 | 56. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP. |
3671 | ||
c2bcbe20 PH |
3672 | 57. Double the size of the debug message buffer (to 2048) so that more of very |
3673 | long debug lines gets shown. | |
3674 | ||
18ce445d PH |
3675 | 58. The exicyclog utility now does better if the number of log files to keep |
3676 | exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02... | |
3677 | ||
1f5b4c3d PH |
3678 | 59. Two changes related to the smtp_active_hostname option: |
3679 | ||
3680 | (1) $smtp_active_hostname is now available as a variable. | |
3681 | (2) The default for smtp_banner uses $smtp_active_hostname instead | |
3682 | of $primary_hostname. | |
3683 | ||
b975ba52 PH |
3684 | 60. The host_aton() function is supposed to be passed a string that is known |
3685 | to be a valid IP address. However, in the case of IPv6 addresses, it was | |
3686 | not checking this. This is a hostage to fortune. Exim now panics and dies | |
3687 | if the condition is not met. A case was found where this could be provoked | |
85b87bc2 PH |
3688 | from a dnsdb PTR lookup with an IPv6 address that had more than 8 |
3689 | components; fortuitously, this particular loophole had already been fixed | |
3690 | by change 4.50/55 above. | |
3691 | ||
3692 | If there are any other similar loopholes, the new check in host_aton() | |
3693 | itself should stop them being exploited. The report I received stated that | |
3694 | data on the command line could provoke the exploit when Exim was running as | |
3695 | exim, but did not say which command line option was involved. All I could | |
3696 | find was the use of -be with a bad dnsdb PTR lookup, and in that case it is | |
3697 | running as the user. | |
ea3a6f44 | 3698 | CAN-2005-0021 |
85b87bc2 PH |
3699 | |
3700 | 61. There was a buffer overflow vulnerability in the SPA authentication code | |
3701 | (which came originally from the Samba project). I have added a test to the | |
3702 | spa_base64_to_bits() function which I hope fixes it. | |
ea3a6f44 | 3703 | CAN-2005-0022 |
b975ba52 | 3704 | |
17ffcae7 PH |
3705 | 62. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and |
3706 | os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD. | |
3707 | ||
d95f9fdb PH |
3708 | 63. The daemon start-up calls getloadavg() while still root for those OS that |
3709 | need the first call to be done as root, but it missed one case: when | |
3710 | deliver_queue_load_max is set with deliver_drop_privilege. This is | |
3711 | necessary for the benefit of the queue runner, because there is no re-exec | |
3712 | when deliver_drop_privilege is set. | |
3713 | ||
86b8287f PH |
3714 | 64. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs. |
3715 | This has been fixed. | |
3716 | ||
60dc5e56 PH |
3717 | 65. Caching of lookup data for "hosts =" ACL conditions, when a named host list |
3718 | was in use, was not putting the data itself into the right store pool; | |
3719 | consequently, it could be overwritten for a subsequent message in the same | |
3720 | SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked | |
3721 | the caching.) | |
3722 | ||
533244af PH |
3723 | 66. Added hosts_max_try_hardlimit to the smtp transport, default 50. |
3724 | ||
a5a28604 PH |
3725 | 67. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP |
3726 | address", "IPv4 address", and "IPv6 address", respectively. Some calls of | |
3727 | the function were treating the return as a boolean value, which happened to | |
3728 | work because 0=false and not-0=true, but is not correct code. | |
3729 | ||
7e634d24 PH |
3730 | 68. The host_aton() function was not handling scoped IPv6 addresses (those |
3731 | with, for example, "%eth0" on the end) correctly. | |
3732 | ||
3e11c26b PH |
3733 | 69. Fixed some compiler warnings in acl.c for the bitmaps specified with |
3734 | negated items (that is, ~something) in unsigned ints. Some compilers | |
3735 | apparently mutter when there is no cast. | |
3736 | ||
6729cf78 PH |
3737 | 70. If an address verification called from an ACL failed, and did not produce a |
3738 | user-specific message (i.e. there was only a "system" message), nothing was | |
3739 | put in $acl_verify_message. In this situation, it now puts the system | |
3740 | message there. | |
3741 | ||
00f00ca5 PH |
3742 | 71. Change 4.23/11 added synchronization checking at the start of an SMTP |
3743 | session; change 4.31/43 added the unwanted input to the log line - except | |
3744 | that it did not do this in the start of session case. It now does. | |
3745 | ||
c9bdd01c PH |
3746 | 72. After a timeout in a callout SMTP session, Exim still sent a QUIT command. |
3747 | This is wrong and can cause the other end to generate a synchronization | |
3748 | error if it is another Exim or anything else that does the synchronization | |
3749 | check. A QUIT command is no longer sent after a timeout. | |
3750 | ||
d43194df PH |
3751 | 73. $host_lookup_deferred has been added, to make it easier to detect DEFERs |
3752 | during host lookups. | |
3753 | ||
fe5b5d0b PH |
3754 | 74. The defer_ok option of callout verification was not working if it was used |
3755 | when verifying addresses in header lines, that is, for this case: | |
3756 | ||
3757 | verify = header_sender/callout=defer_ok | |
3758 | ||
76a2d7ba PH |
3759 | 75. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that |
3760 | those file descriptors could be used for SMTP connections. If anything | |
3761 | wrote to stderr (the example that came up was "warn" in embedded Perl), it | |
3762 | could be sent to the SMTP client, causing chaos. The daemon now opens | |
3763 | stdin, stdout, and stderr to /dev/null when it puts itself into the | |
3764 | background. | |
3765 | ||
3766 | 76. Arrange for output from Perl's "warn" command to be written to Exim's main | |
3767 | log by default. The user can override this with suitable Perl magic. | |
3768 | ||
04f7d5b9 PH |
3769 | 77. The use of log_message on a "discard" ACL verb, which is supposed to add to |
3770 | the log message when discard triggers, was not working for the DATA ACL or | |
3771 | for the non-SMTP ACL. | |
3772 | ||
bc60667e PH |
3773 | 78. Error message wording change in sieve.c. |
3774 | ||
bb6e88ff PH |
3775 | 79. If smtp_accept_max_per_host was set, the number of connections could be |
3776 | restricted to fewer than expected, because the daemon was trying to set up | |
3777 | a new connection before checking whether the processes handling previous | |
3778 | connections had finished. The check for completed processes is now done | |
3779 | earlier. On busy systems, this bug wouldn't be noticed because something | |
3780 | else would have woken the daemon, and it would have reaped the completed | |
3781 | process earlier. | |
3782 | ||
1e70f85b PH |
3783 | 80. If a message was submitted locally by a user whose login name contained one |
3784 | or more spaces (ugh!), the spool file that Exim wrote was not re-readable. | |
3785 | It caused a spool format error. I have fixed the spool reading code. A | |
3786 | related problem was that the "from" clause in the Received: line became | |
3787 | illegal because of the space(s). It is now covered by ${quote_local_part. | |
3788 | ||
3789 | 81. Included the latest eximstats from Steve (adds average sizes to HTML Top | |
3790 | tables). | |
3791 | ||
4e01f9d6 PH |
3792 | 82. Updated OS/Makefile-AIX as per message from Mike Meredith. |
3793 | ||
1ee1cef2 PH |
3794 | 83. Patch from Sieve maintainer to fix unterminated string problem in |
3795 | "vacation" handling. | |
3796 | ||
6e2b4ccc PH |
3797 | 84. Some minor changes to the Linux configuration files to help with other |
3798 | OS variants using glibc. | |
3799 | ||
8e669ac1 PH |
3800 | 85. One more patch for Sieve to update vacation handling to latest spec. |
3801 | ||
495ae4b0 | 3802 | |
bbe902f0 PH |
3803 | ---------------------------------------------------- |
3804 | See the note above about the 4.44 and 4.50 releases. | |
3805 | ---------------------------------------------------- | |
3806 | ||
3807 | ||
3808 | Exim version 4.44 | |
3809 | ----------------- | |
3810 | ||
3811 | 1. Change 4.43/35 introduced a bug that caused file counts to be | |
3812 | incorrectly computed when quota_filecount was set in an appendfile | |
3813 | transport | |
3814 | ||
3815 | 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The | |
3816 | bug fixed in 4.43/37 would have been diagnosed quickly if this had been in | |
3817 | place. | |
3818 | ||
3819 | 3. Give more explanation in the error message when the command for a transport | |
3820 | filter fails to execute. | |
3821 | ||
3822 | 4. There are several places where Exim runs a non-Exim command in a | |
3823 | subprocess. The SIGUSR1 signal should be disabled for these processes. This | |
3824 | was being done only for the command run by the queryprogram router. It is | |
3825 | now done for all such subprocesses. The other cases are: ${run, transport | |
3826 | filters, and the commands run by the lmtp and pipe transports. | |
3827 | ||
3828 | 5. Some older OS have a limit of 256 on the maximum number of file | |
3829 | descriptors. Exim was using setrlimit() to set 1000 as a large value | |
3830 | unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these | |
3831 | systems. I've change it so that if it can't get 1000, it tries for 256. | |
3832 | ||
3833 | 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This | |
3834 | was an oversight, and furthermore, ever since the addition of extra | |
3835 | controls (e.g. 4.43/32), the checks on when to allow different forms of | |
3836 | "control" were broken. There should now be diagnostics for all cases when a | |
3837 | control that does not make sense is encountered. | |
3838 | ||
3839 | 7. $recipients is now available in the predata ACL (oversight). | |
3840 | ||
3841 | 8. Tidy the search cache before the fork to do a delivery from a message | |
3842 | received from the command line. Otherwise the child will trigger a lookup | |
3843 | failure and thereby defer the delivery if it tries to use (for example) a | |
3844 | cached ldap connection that the parent has called unbind on. | |
3845 | ||
3846 | 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value | |
3847 | of $address_data from the recipient verification was clobbered by the | |
3848 | sender verification. | |
3849 | ||
3850 | 10. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0 | |
3851 | was its contents. (It was OK if the option was not defined at all.) | |
3852 | ||
3853 | 11. A "Completed" log line is now written for messages that are removed from | |
3854 | the spool by the -Mrm option. | |
3855 | ||
3856 | 12. $host_address is now set to the target address during the checking of | |
3857 | ignore_target_hosts. | |
3858 | ||
3859 | 13. When checking ignore_target_hosts for an ipliteral router, no host name was | |
3860 | being passed; this would have caused $sender_host_name to have been used if | |
3861 | matching the list had actually called for a host name (not very likely, | |
3862 | since this list is usually IP addresses). A host name is now passed as | |
3863 | "[x.x.x.x]". | |
3864 | ||
3865 | 14. Changed the calls that set up the SIGCHLD handler in the daemon to use the | |
3866 | code that specifies a non-restarting handler (typically sigaction() in | |
3867 | modern systems) in an attempt to fix a rare and obscure crash bug. | |
3868 | ||
3869 | 15. Narrowed the window for a race in the daemon that could cause it to ignore | |
3870 | SIGCHLD signals. This is not a major problem, because they are used only to | |
3871 | wake it up if nothing else does. | |
3872 | ||
3873 | 16. A malformed maildirsize file could cause Exim to calculate negative values | |
3874 | for the mailbox size or file count. Odd effects could occur as a result. | |
3875 | The maildirsize information is now recalculated if the size or filecount | |
3876 | end up negative. | |
3877 | ||
3878 | 17. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this | |
3879 | support for a long time. Removed HAVE_SYS_VFS_H. | |
3880 | ||
ea3a6f44 | 3881 | 18. Updated exipick to current release from John Jetmore. |
bbe902f0 PH |
3882 | |
3883 | 19. Allow an empty sender to be matched against a lookup in an address list. | |
3884 | Previously the only cases considered were a regular expression, or an | |
3885 | empty pattern. | |
3886 | ||
3887 | 20. Exim went into a mad DNS lookup loop when doing a callout where the | |
3888 | host was specified on the transport, if the DNS lookup yielded more than | |
3889 | one IP address. | |
3890 | ||
ea3a6f44 NM |
3891 | 21. The RFC2047 encoding function was originally intended for short strings |
3892 | such as real names; it was not keeping to the 75-character limit for | |
3893 | encoded words that the RFC imposes. It now respects the limit, and | |
3894 | generates multiple encoded words if necessary. To be on the safe side, I | |
3895 | have increased the buffer size for the ${rfc2047: expansion operator from | |
3896 | 1024 to 2048 bytes. | |
bbe902f0 | 3897 | |
ea3a6f44 NM |
3898 | 22. Failure to deliver a bounce message always caused it to be frozen, even if |
3899 | there was an errors_to setting on the router. The errors_to setting is now | |
3900 | respected. | |
bbe902f0 PH |
3901 | |
3902 | 23. If an IPv6 address is given for -bh or -bhc, it is now converted to the | |
3903 | canonical form (fully expanded) before being placed in | |
3904 | $sender_host_address. | |
3905 | ||
3906 | 24. Updated eximstats to version 1.33 | |
3907 | ||
ea3a6f44 NM |
3908 | 25. Include certificate and key file names in error message when GnuTLS fails |
3909 | to set them up, because the GnuTLS error message doesn't include the name | |
3910 | of the failing file when there is a problem reading it. | |
bbe902f0 PH |
3911 | |
3912 | 26. Expand error message when OpenSSL has problems setting up cert/key files. | |
ea3a6f44 | 3913 | As per change 25. |
bbe902f0 | 3914 | |
ea3a6f44 NM |
3915 | 27. Reset the locale to "C" after calling embedded Perl, in case it was changed |
3916 | (this can affect the format of dates). | |
bbe902f0 | 3917 | |
ea3a6f44 NM |
3918 | 28. exim_tidydb, when checking for the continued existence of a message for |
3919 | which it has found a message-specific retry record, was not finding | |
3920 | messages that were in split spool directories. Consequently, it was | |
3921 | deleting retry records that should have stayed in existence. | |
bbe902f0 PH |
3922 | |
3923 | 29. eximstats updated to version 1.35 | |
3924 | 1.34 - allow eximstats to parse syslog lines as well as mainlog lines | |
3925 | 1.35 - bugfix such that pie charts by volume are generated correctly | |
3926 | ||
ea3a6f44 NM |
3927 | 30. The SPA authentication driver was not abandoning authentication and moving |
3928 | on to the next authenticator when an expansion was forced to fail, | |
3929 | contradicting the general specification for all authenticators. Instead it | |
3930 | was generating a temporary error. It now behaves as specified. | |
bbe902f0 | 3931 | |
ea3a6f44 NM |
3932 | 31. The default ordering of permitted cipher suites for GnuTLS was pessimal |
3933 | (the order specifies the preference for clients). The order is now AES256, | |
3934 | AES128, 3DES, ARCFOUR128. | |
bbe902f0 | 3935 | |
ea3a6f44 NM |
3936 | 31. Small patch to Sieve code - explicitly set From: when generating an |
3937 | autoreply. | |
bbe902f0 | 3938 | |
ea3a6f44 NM |
3939 | 32. Exim crashed if a remote delivery caused a very long error message to be |
3940 | recorded - for instance if somebody sent an entire SpamAssassin report back | |
3941 | as a large number of 550 error lines. This bug was coincidentally fixed by | |
3942 | increasing the size of one of Exim's internal buffers (big_buffer) that | |
3943 | happened as part of the Exiscan merge. However, to be on the safe side, I | |
3944 | have made the code more robust (and fixed the comments that describe what | |
3945 | is going on). | |
bbe902f0 | 3946 | |
ea3a6f44 NM |
3947 | 33. Some experimental protocols are using DNS PTR records for new purposes. The |
3948 | keys for these records are domain names, not reversed IP addresses. The | |
3949 | dnsdb PTR lookup now tests whether its key is an IP address. If not, it | |
3950 | leaves it alone. Component reversal etc. now happens only for IP addresses. | |
bbe902f0 PH |
3951 | CAN-2005-0021 |
3952 | ||
ea3a6f44 NM |
3953 | 34. The host_aton() function is supposed to be passed a string that is known |
3954 | to be a valid IP address. However, in the case of IPv6 addresses, it was | |
3955 | not checking this. This is a hostage to fortune. Exim now panics and dies | |
3956 | if the condition is not met. A case was found where this could be provoked | |
3957 | from a dnsdb PTR lookup with an IPv6 address that had more than 8 | |
3958 | components; fortuitously, this particular loophole had already been fixed | |
3959 | by change 4.50/55 or 4.44/33 above. | |
3960 | ||
3961 | If there are any other similar loopholes, the new check in host_aton() | |
3962 | itself should stop them being exploited. The report I received stated that | |
3963 | data on the command line could provoke the exploit when Exim was running as | |
3964 | exim, but did not say which command line option was involved. All I could | |
3965 | find was the use of -be with a bad dnsdb PTR lookup, and in that case it is | |
3966 | running as the user. | |
bbe902f0 PH |
3967 | CAN-2005-0021 |
3968 | ||
ea3a6f44 NM |
3969 | 35. There was a buffer overflow vulnerability in the SPA authentication code |
3970 | (which came originally from the Samba project). I have added a test to the | |
3971 | spa_base64_to_bits() function which I hope fixes it. | |
bbe902f0 PH |
3972 | CAN-2005-0022 |
3973 | ||
ea3a6f44 NM |
3974 | 36. The daemon start-up calls getloadavg() while still root for those OS that |
3975 | need the first call to be done as root, but it missed one case: when | |
3976 | deliver_queue_load_max is set with deliver_drop_privilege. This is | |
3977 | necessary for the benefit of the queue runner, because there is no re-exec | |
3978 | when deliver_drop_privilege is set. | |
bbe902f0 | 3979 | |
ea3a6f44 NM |
3980 | 37. Caching of lookup data for "hosts =" ACL conditions, when a named host list |
3981 | was in use, was not putting the data itself into the right store pool; | |
3982 | consequently, it could be overwritten for a subsequent message in the same | |
3983 | SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked | |
3984 | the caching.) | |
bbe902f0 | 3985 | |
ea3a6f44 NM |
3986 | 38. Sometimes the final signoff response after QUIT could fail to get |
3987 | transmitted in the non-TLS case. Testing !tls_active instead of tls_active | |
3988 | < 0 before doing a fflush(). This bug looks as though it goes back to the | |
3989 | introduction of TLS in release 3.20, but "sometimes" must have been rare | |
3990 | because the tests only now provoked it. | |
bbe902f0 PH |
3991 | |
3992 | ||
495ae4b0 PH |
3993 | Exim version 4.43 |
3994 | ----------------- | |
3995 | ||
3996 | 1. Fixed a longstanding but relatively impotent bug: a long time ago, before | |
3997 | PIPELINING, the function smtp_write_command() used to return TRUE or FALSE. | |
3998 | Now it returns an integer. A number of calls were still expecting a T/F | |
3999 | return. Fortuitously, in all cases, the tests worked in OK situations, | |
4000 | which is the norm. However, things would have gone wrong on any write | |
4001 | failures on the smtp file descriptor. This function is used when sending | |
4002 | messages over SMTP and also when doing verify callouts. | |
4003 | ||
4004 | 2. When Exim is called to do synchronous delivery of a locally submitted | |
4005 | message (the -odf or -odi options), it no longer closes stderr before doing | |
4006 | the delivery. | |
4007 | ||
4008 | 3. Implemented the mua_wrapper option. | |
4009 | ||
4010 | 4. Implemented mx_fail_domains and srv_fail_domains for the dnslookup router. | |
4011 | ||
4012 | 5. Implemented the functions header_remove(), header_testname(), | |
4013 | header_add_at_position(), and receive_remove_recipient(), and exported them | |
4014 | to local_scan(). | |
4015 | ||
4016 | 6. If an ACL "warn" statement specified the addition of headers, Exim already | |
4017 | inserted X-ACL-Warn: at the start if there was no header name. However, it | |
4018 | was not making this test for the second and subsequent header lines if | |
4019 | there were newlines in the string. This meant that an invalid header could | |
4020 | be inserted if Exim was badly configured. | |
4021 | ||
4022 | 7. Allow an ACL "warn" statement to add header lines at the start or after all | |
4023 | the Received: headers, as well as at the end. | |
4024 | ||
4025 | 8. Added the rcpt_4xx retry error code. | |
4026 | ||
4027 | 9. Added postmaster_mailfrom=xxx to callout verification option. | |
4028 | ||
4029 | 10. Added mailfrom=xxxx to the callout verification option, for verify= | |
4030 | header_sender only. | |
4031 | ||
4032 | 11. ${substr_1_:xxxx} and ${substr__3:xxxx} are now diagnosed as syntax errors | |
4033 | (they previously behaved as ${substr_1_0:xxxx} and ${substr:_0_3:xxxx}). | |
4034 | ||
4035 | 12. Inserted some casts to stop certain compilers warning when using pointer | |
4036 | differences as field lengths or precisions in printf-type calls (mostly | |
4037 | affecting debugging statements). | |
4038 | ||
4039 | 13. Added optional readline() support for -be (dynamically loaded). | |
4040 | ||
4041 | 14. Obscure bug fix: if a message error (e.g. 4xx to MAIL) happened within the | |
4042 | same clock tick as a message's arrival, so that its received time was the | |
4043 | same as the "first fail" time on the retry record, and that message | |
4044 | remained on the queue past the ultimate address timeout, every queue runner | |
4045 | would try a delivery (because it was past the ultimate address timeout) but | |
4046 | after another failure, the ultimate address timeout, which should have then | |
4047 | bounced the address, did not kick in. This was a "< instead of <=" error; | |
4048 | in most cases the first failure would have been in the next clock tick | |
4049 | after the received time, and all would be well. | |
4050 | ||
4051 | 15. The special items beginning with @ in domain lists (e.g. @mx_any) were not | |
4052 | being recognized when the domain list was tested by the match_domain | |
4053 | condition in an expansion string. | |
4054 | ||
4055 | 16. Added the ${str2b64: operator. | |
4056 | ||
4057 | 17. Exim was always calling setrlimit() to set a large limit for the number of | |
4058 | processes, without checking whether the existing limit was already | |
4059 | adequate. (It did check for the limit on file descriptors.) Furthermore, | |
4060 | errors from getrlimit() and setrlimit() were being ignored. Now they are | |
4061 | logged to the main and panic logs, but Exim does carry on, to try to do its | |
4062 | job under whatever limits there are. | |
4063 | ||
4064 | 18. Imported PCRE 5.0. | |
4065 | ||
4066 | 19. Trivial typo in log message " temporarily refused connection" (the leading | |
4067 | space). | |
4068 | ||
4069 | 20. If the log selector return_path_on_delivery was set and an address was | |
4070 | redirected to /dev/null, the delivery process crashed because it assumed | |
4071 | that a return path would always be set for a "successful" delivery. In this | |
4072 | case, the whole delivery is bypassed as an optimization, and therefore no | |
4073 | return path is set. | |
4074 | ||
4075 | 21. Internal re-arrangement: the function for sending a challenge and reading | |
4076 | a response while authentication was assuming a zero-terminated challenge | |
4077 | string. It's now changed to take a pointer and a length, to allow for | |
4078 | binary data in such strings. | |
4079 | ||
4080 | 22. Added the cyrus_sasl authenticator (code supplied by MBM). | |
4081 | ||
4082 | 23. Exim was not respecting finduser_retries when seeking the login of the | |
4083 | uid under which it was called; it was always trying 10 times. (The default | |
4084 | setting of finduser_retries is zero.) Also, it was sleeping after the final | |
4085 | failure, which is pointless. | |
4086 | ||
4087 | 24. Implemented tls_on_connect_ports. | |
4088 | ||
4089 | 25. Implemented acl_smtp_predata. | |
4090 | ||
4091 | 26. If the domain in control=submission is set empty, Exim assumes that the | |
4092 | authenticated id is a complete email address when it generates From: or | |
4093 | Sender: header lines. | |
4094 | ||
4095 | 27. Added "#define SOCKLEN_T int" to OS/os.h-SCO and OS/os.h-SCO_SV. Also added | |
4096 | definitions to OS/Makefile-SCO and OS/Makefile-SCO_SV that put basename, | |
4097 | chown and chgrp in /bin and hostname in /usr/bin. | |
4098 | ||
4099 | 28. Exim was keeping the "process log" file open after each use, just as it | |
4100 | does for the main log. This opens the possibility of it remaining open for | |
4101 | long periods when the USR1 signal hits a daemon. Occasional processlog | |
4102 | errors were reported, that could have been caused by this. Anyway, it seems | |
4103 | much more sensible not to leave this file open at all, so that is what now | |
4104 | happens. | |
4105 | ||
4106 | 29. The long-running daemon process does not normally write to the log once it | |
4107 | has entered its main loop, and it closes the log before doing so. This is | |
4108 | so that log files can straightforwardly be renamed and moved. However, | |
4109 | there are a couple of unusual error situations where the daemon does write | |
4110 | log entries, and I had neglected to close the log afterwards. | |
4111 | ||
4112 | 30. The text of an SMTP error response that was received during a remote | |
4113 | delivery was being truncated at 512 bytes. This is too short for some of | |
4114 | the long messages that one sometimes sees. I've increased the limit to | |
4115 | 1024. | |
4116 | ||
4117 | 31. It is now possible to make retry rules that apply only when a message has a | |
4118 | specific sender, in particular, an empty sender. | |
4119 | ||
4120 | 32. Added "control = enforce_sync" and "control = no_enforce_sync". This makes | |
4121 | it possible to be selective about when SMTP synchronization is enforced. | |
4122 | ||
4123 | 33. Added "control = caseful_local_part" and "control = "caselower_local_part". | |
4124 | ||
4125 | 32. Implemented hosts_connection_nolog. | |
4126 | ||
4127 | 33. Added an ACL for QUIT. | |
4128 | ||
4129 | 34. Setting "delay_warning=" to disable warnings was not working; it gave a | |
4130 | syntax error. | |
4131 | ||
4132 | 35. Added mailbox_size and mailbox_filecount to appendfile. | |
4133 | ||
4134 | 36. Added control = no_multiline_responses to ACLs. | |
4135 | ||
4136 | 37. There was a bug in the logic of the code that waits for the clock to tick | |
4137 | in the case where the clock went backwards by a substantial amount such | |
4138 | that the microsecond fraction of "now" was more than the microsecond | |
4139 | fraction of "then" (but the whole seconds number was less). | |
4140 | ||
4141 | 38. Added support for the libradius Radius client library this is found on | |
4142 | FreeBSD (previously only the radiusclient library was supported). | |
4143 | ||
4144 | ||
4145 | Exim version 4.42 | |
4146 | ----------------- | |
4147 | ||
4148 | 1. When certain lookups returned multiple values in the form name=value, the | |
4149 | quoting of the values was not always being done properly. Specifically: | |
4150 | (a) If the value started with a double quote, but contained no whitespace, | |
4151 | it was not quoted. | |
4152 | (b) If the value contained whitespace other than a space character (i.e. | |
4153 | tabs or newlines or carriage returns) it was not quoted. | |
4154 | This fix has been applied to the mysql and pgsql lookups by writing a | |
4155 | separate quoting function and calling it from the lookup code. The fix | |
4156 | should probably also be applied to nisplus, ibase and oracle lookups, but | |
4157 | since I cannot test any of those, I have not disturbed their existing code. | |
4158 | ||
4159 | 2. A hit in the callout cache for a specific address caused a log line with no | |
4160 | reason for rejecting RCPT. Now it says "Previous (cached) callout | |
4161 | verification failure". | |
4162 | ||
4163 | 3. There was an off-by-one bug in the queryprogram router. An over-long | |
4164 | return line was truncated at 256 instead of 255 characters, thereby | |
4165 | overflowing its buffer with the terminating zero. As well as fixing this, I | |
4166 | have increased the buffer size to 1024 (and made a note to document this). | |
4167 | ||
4168 | 4. If an interrupt, such as the USR1 signal that is send by exiwhat, arrives | |
4169 | when Exim is waiting for an SMTP response from a remote server, Exim | |
4170 | restarts its select() call on the socket, thereby resetting its timeout. | |
4171 | This is not a problem when such interrupts are rare. Somebody set up a cron | |
4172 | job to run exiwhat every 2 minutes, which is less than the normal select() | |
4173 | timeout (5 or 10 minutes). This meant that the select() timeout never | |
4174 | kicked in because it was always reset. I have fixed this by comparing the | |
4175 | time when an interrupt arrives with the time at the start of the first call | |
4176 | to select(). If more time than the timeout has elapsed, the interrupt is | |
4177 | treated as a timeout. | |
4178 | ||
4179 | 5. Some internal re-factoring in preparation for the addition of Sieve | |
4180 | extensions (by MH). In particular, the "personal" test is moved to a | |
4181 | separate function, and given an option for scanning Cc: and Bcc: (which is | |
4182 | not set for Exim filters). | |
4183 | ||
4184 | 6. When Exim created an email address using the login of the caller as the | |
4185 | local part (e.g. when creating a From: or Sender: header line), it was not | |
4186 | quoting the local part when it contained special characters such as @. | |
4187 | ||
4188 | 7. Installed new OpenBSD configuration files. | |
4189 | ||
4190 | 8. Reworded some messages for syntax errors in "and" and "or" conditions to | |
4191 | try to make them clearer. | |
4192 | ||
4193 | 9. Callout options, other than the timeout value, were being ignored when | |
4194 | verifying sender addresses in header lines. For example, when using | |
4195 | ||
4196 | verify = header_sender/callout=no_cache | |
4197 | ||
4198 | the cache was (incorrectly) being used. | |
4199 | ||
4200 | 10. Added a missing instance of ${EXE} to the exim_install script; this affects | |
4201 | only the Cygwin environment. | |
4202 | ||
4203 | 11. When return_path_on_delivery was set as a log selector, if different remote | |
4204 | addresses in the same message used different return paths and parallel | |
4205 | remote delivery occurred, the wrong values would sometimes be logged. | |
4206 | (Whenever a remote delivery process finished, the return path value from | |
4207 | the most recently started remote delivery process was logged.) | |
4208 | ||
4209 | 12. RFC 3848 specifies standard names for the "with" phrase in Received: header | |
4210 | lines when AUTH and/or TLS are in use. This is the "received protocol" | |
4211 | field. Exim used to use "asmtp" for authenticated SMTP, without any | |
4212 | indication (in the protocol name) for TLS use. Now it follows the RFC and | |
4213 | uses "esmtpa" if the connection is authenticated, "esmtps" if it is | |
4214 | encrypted, and "esmtpsa" if it is both encrypted and authenticated. These | |
4215 | names appear in log lines as well as in Received: header lines. | |
4216 | ||
4217 | 13. Installed MH's patches for Sieve to add the "copy" and "vacation" | |
4218 | extensions, and comparison tests, and to fix some bugs. | |
4219 | ||
4220 | 14. Changes to the "personal" filter test: | |
4221 | ||
4222 | (1) The test was buggy in that it was just doing the equivalent of | |
4223 | "contains" tests on header lines. For example, if a user's address was | |
4224 | anne@some.where, the "personal" test would incorrectly be true for | |
4225 | ||
4226 | To: susanne@some.where | |
4227 | ||
4228 | This test is now done by extracting each address from the header in turn, | |
4229 | and checking the entire address. Other tests that are part of "personal" | |
4230 | are now done using regular expressions (for example, to check local parts | |
4231 | of addresses in From: header lines). | |
4232 | ||
4233 | (2) The list of non-personal local parts in From: addresses has been | |
4234 | extended to include "listserv", "majordomo", "*-request", and "owner-*", | |
4235 | taken from the Sieve specification recommendations. | |
4236 | ||
4237 | (3) If the message contains any header line starting with "List-" it is | |
4238 | treated as non-personal. | |
4239 | ||
4240 | (4) The test for "circular" in the Subject: header line has been removed | |
4241 | because it now seems ill-conceived. | |
4242 | ||
4243 | 15. Minor typos in src/EDITME comments corrected. | |
4244 | ||
4245 | 16. Installed latest exipick from John Jetmore. | |
4246 | ||
4247 | 17. If headers_add on a router specified a text string that was too long for | |
4248 | string_sprintf() - that is, longer than 8192 bytes - Exim panicked. The use | |
4249 | of string_sprintf() is now avoided. | |
4250 | ||
4251 | 18. $message_body_size was not set (it was always zero) when running the DATA | |
4252 | ACL and the local_scan() function. | |
4253 | ||
4254 | 19. For the "mail" command in an Exim filter, no default was being set for | |
4255 | the once_repeat time, causing a random time value to be used if "once" was | |
4256 | specified. (If the value happened to be <= 0, no repeat happened.) The | |
4257 | default is now 0s, meaning "never repeat". The "vacation" command was OK | |
4258 | (its default is 7d). It's somewhat surprising nobody ever noticed this bug | |
4259 | (I found it when inspecting the code). | |
4260 | ||
4261 | 20. There is now an overall timeout for performing a callout verification. It | |
4262 | defaults to 4 times the callout timeout, which applies to individual SMTP | |
4263 | commands during the callout. The overall timeout applies when there is more | |
4264 | than one host that can be tried. The timeout is checked before trying the | |
4265 | next host. This prevents very long delays if there are a large number of | |
4266 | hosts and all are timing out (e.g. when the network connections are timing | |
4267 | out). The value of the overall timeout can be changed by specifying an | |
4268 | additional sub-option for "callout", called "maxwait". For example: | |
4269 | ||
4270 | verify = sender/callout=5s,maxwait=20s | |
4271 | ||
4272 | 21. Add O_APPEND to the open() call for maildirsize files (Exim already seeks | |
4273 | to the end before writing, but this should make it even safer). | |
4274 | ||
4275 | 22. Exim was forgetting that it had advertised PIPELINING for the second and | |
4276 | subsequent messages on an SMTP connection. It was also not resetting its | |
4277 | memory on STARTTLS and an internal HELO. | |
4278 | ||
4279 | 23. When Exim logs an SMTP synchronization error within a session, it now | |
4280 | records whether PIPELINING has been advertised or not. | |
4281 | ||
4282 | 24. Added 3 instances of "(long int)" casts to time_t variables that were being | |
4283 | formatted using %ld, because on OpenBSD (and perhaps others), time_t is int | |
4284 | rather than long int. | |
4285 | ||
4286 | 25. Installed the latest Cygwin configuration files from the Cygwin maintainer. | |
4287 | ||
4288 | 26. Added the never_mail option to autoreply. | |
4289 | ||
4290 | ||
4291 | Exim version 4.41 | |
4292 | ----------------- | |
4293 | ||
4294 | 1. A reorganization of the code in order to implement 4.40/8 caused a daemon | |
4295 | crash if the getsockname() call failed; this can happen if a connection is | |
4296 | closed very soon after it is established. The problem was simply in the | |
4297 | order in which certain operations were done, causing Exim to try to write | |
4298 | to the SMTP stream before it had set up the file descriptor. The bug has | |
4299 | been fixed by making things happen in the correct order. | |
4300 | ||
4301 | ||
4302 | Exim version 4.40 | |
4303 | ----------------- | |
4304 | ||
4305 | 1. If "drop" was used in a DATA ACL, the SMTP output buffer was not flushed | |
4306 | before the connection was closed, thus losing the rejection response. | |
4307 | ||
4308 | 2. Commented out the definition of SOCKLEN_T in os.h-SunOS5. It is needed for | |
4309 | some early Solaris releases, but causes trouble in current releases where | |
4310 | socklen_t is defined. | |
4311 | ||
4312 | 3. When std{in,out,err} are closed, re-open them to /dev/null so that they | |
4313 | always exist. | |
4314 | ||
4315 | 4. Minor refactoring of os.c-Linux to avoid compiler warning when IPv6 is not | |
4316 | configured. | |
4317 | ||
4318 | 5. Refactoring in expand.c to improve memory usage. Pre-allocate a block so | |
4319 | that releasing the top of it at the end releases what was used for sub- | |
4320 | expansions (unless the block got too big). However, discard this block if | |
4321 | the first thing is a variable or header, so that we can use its block when | |
4322 | it is dynamic (useful for very large $message_headers, for example). | |
4323 | ||
4324 | 6. Lookups now cache *every* query, not just the most recent. A new, separate | |
4325 | store pool is used for this. It can be recovered when all lookup caches are | |
4326 | flushed. Lookups now release memory at the end of their result strings. | |
4327 | This has involved some general refactoring of the lookup sources. | |
4328 | ||
4329 | 7. Some code has been added to the store_xxx() functions to reduce the amount | |
4330 | of flapping under certain conditions. | |
4331 | ||
4332 | 8. log_incoming_interface used to affect only the <= reception log lines. Now | |
4333 | it causes the local interface and port to be added to several more SMTP log | |
4334 | lines, for example "SMTP connection from", and rejection lines. | |
4335 | ||
4336 | 9. The Sieve author supplied some patches for the doc/README.SIEVE file. | |
4337 | ||
4338 | 10. Added a conditional definition of _BSD_SOCKLEN_T to os.h-Darwin. | |
4339 | ||
4340 | 11. If $host_data was set by virtue of a hosts lookup in an ACL, its value | |
4341 | could be overwritten at the end of the current message (or the start of a | |
4342 | new message if it was set in a HELO ACL). The value is now preserved for | |
4343 | the duration of the SMTP connection. | |
4344 | ||
4345 | 12. If a transport had a headers_rewrite setting, and a matching header line | |
4346 | contained an unqualified address, that address was qualified, even if it | |
4347 | did not match any rewriting rules. The underlying bug was that the values | |
4348 | of the flags that permit the existence of unqualified sender and recipient | |
4349 | addresses in header lines (set by {sender,recipient}_unqualified_hosts for | |
4350 | non-local messages, and by -bnq for local messages) were not being | |
4351 | preserved with the message after it was received. | |
4352 | ||
4353 | 13. When Exim was logging an SMTP synchronization error, it could sometimes log | |
4354 | "next input=" as part of the text comprising the host identity instead of | |
4355 | the correct text. The code was using the same buffer for two different | |
4356 | strings. However, depending on which order the printing function evaluated | |
4357 | its arguments, the bug did not always show up. Under Linux, for example, my | |
4358 | test suite worked just fine. | |
4359 | ||
4360 | 14. Exigrep contained a use of Perl's "our" scoping after change 4.31/70. This | |
4361 | doesn't work with some older versions of Perl. It has been changed to "my", | |
4362 | which in any case is probably the better facility to use. | |
4363 | ||
4364 | 15. A really picky compiler found some instances of statements for creating | |
4365 | error messages that either had too many or two few arguments for the format | |
4366 | string. | |
4367 | ||
4368 | 16. The size of the buffer for calls to the DNS resolver has been increased | |
4369 | from 1024 to 2048. A larger buffer is needed when performing PTR lookups | |
4370 | for addresses that have a lot of PTR records. This alleviates a problem; it | |
4371 | does not fully solve it. | |
4372 | ||
4373 | 17. A dnsdb lookup for PTR records that receives more data than will fit in the | |
4374 | buffer now truncates the list and logs the incident, which is the same | |
4375 | action as happens when Exim is looking up a host name and its aliases. | |
4376 | Previously in this situation something unpredictable would happen; | |
4377 | sometimes it was "internal error: store_reset failed". | |
4378 | ||
4379 | 18. If a server dropped the connection unexpectedly when an Exim client was | |
4380 | using GnuTLS and trying to read a response, the client delivery process | |
4381 | crashed while trying to generate an error log message. | |
4382 | ||
4383 | 19. If a "warn" verb in an ACL added multiple headers to a message in a single | |
4384 | string, for example: | |
4385 | ||
4386 | warn message = H1: something\nH2: something | |
4387 | ||
4388 | the text was added as a single header line from Exim's point of view | |
4389 | though it ended up OK in the delivered message. However, searching for the | |
4390 | second and subsequent header lines using $h_h2: did not work. This has been | |
4391 | fixed. Similarly, if a system filter added multiple headers in this way, | |
4392 | the routers could not see them. | |
4393 | ||
4394 | 20. Expanded the error message when iplsearch is called with an invalid key to | |
4395 | suggest using net-iplsearch in a host list. | |
4396 | ||
4397 | 21. When running tests using -bh, any delays imposed by "delay" modifiers in | |
4398 | ACLs are no longer actually imposed (and a message to that effect is | |
4399 | output). | |
4400 | ||
4401 | 22. If a "gecos" field in a passwd entry contained escaped characters, in | |
4402 | particular, if it contained a \" sequence, Exim got it wrong when building | |
4403 | a From: or a Sender: header from that name. A second bug also caused | |
4404 | incorrect handling when an unquoted " was present following a character | |
4405 | that needed quoting. | |
4406 | ||
4407 | 23. "{crypt}" as a password encryption mechanism for a "crypteq" expansion item | |
4408 | was not being matched caselessly. | |
4409 | ||
4410 | 24. Arranged for all hyphens in the exim.8 source to be escaped with | |
4411 | backslashes. | |
4412 | ||
4413 | 25. Change 16 of 4.32, which reversed 71 or 4.31 didn't quite do the job | |
4414 | properly. Recipient callout cache records were still being keyed to include | |
4415 | the sender, even when use_sender was set false. This led to far more | |
4416 | callouts that were necessary. The sender is no longer included in the key | |
4417 | when use_sender is false. | |
4418 | ||
4419 | 26. Added "control = submission" modifier to ACLs. | |
4420 | ||
4421 | 27. Added the ${base62d: operator to decode base 62 numbers. | |
4422 | ||
4423 | 28. dnsdb lookups can now access SRV records. | |
4424 | ||
4425 | 29. CONFIGURE_OWNER can be set at build time to define an alternative owner for | |
4426 | the configuration file. | |
4427 | ||
4428 | 30. The debug message "delivering xxxxxx-xxxxxx-xx" is now output in verbose | |
4429 | (-v) mode. This makes the output for a verbose queue run more intelligible. | |
4430 | ||
4431 | 31. Added a use_postmaster feature to recipient callouts. | |
4432 | ||
4433 | 32. Added the $body_zerocount variable, containing the number of binary zero | |
4434 | bytes in the message body. | |
4435 | ||
4436 | 33. The time of last modification of the "new" subdirectory is now used as the | |
4437 | "mailbox time last read" when there is a quota error for a maildir | |
4438 | delivery. | |
4439 | ||
4440 | 34. Added string comparison operators lt, lti, le, lei, gt, gti, ge, gei. | |
4441 | ||
4442 | 35. Added +ignore_unknown as a special item in host lists. | |
4443 | ||
4444 | 36. Code for decoding IPv6 addresses in host lists is now included, even if | |
4445 | IPv6 support is not being compiled. This fixes a bug in which an IPv6 | |
4446 | address was recognized as an IP address, but was then not correctly decoded | |
4447 | into binary, causing unexpected and incorrect effects when compared with | |
4448 | another IP address. | |
4449 | ||
4450 | ||
4451 | Exim version 4.34 | |
4452 | ----------------- | |
4453 | ||
4454 | 1. Very minor rewording of debugging text in manualroute to say "list of | |
4455 | hosts" instead of "hostlist". | |
4456 | ||
4457 | 2. If verify=header_syntax was set, and a header line with an unqualified | |
4458 | address (no domain) and a large number of spaces between the end of the | |
4459 | name and the colon was received, the reception process suffered a buffer | |
4460 | overflow, and (when I tested it) crashed. This was caused by some obsolete | |
4461 | code that should have been removed. The fix is to remove it! | |
4462 | ||
4463 | 3. When running in the test harness, delay a bit after writing a bounce | |
4464 | message to get a bit more predictability in the log output. | |
4465 | ||
4466 | 4. Added a call to search_tidyup() just before forking a reception process. In | |
4467 | theory, someone could use a lookup in the expansion of smtp_accept_max_ | |
4468 | per_host which, without the tidyup, could leave open a database connection. | |
4469 | ||
4470 | 5. Added the variables $recipient_data and $sender_data which get set from a | |
4471 | lookup success in an ACL "recipients" or "senders" condition, or a router | |
4472 | "senders" option, similar to $domain_data and $local_part_data. | |
4473 | ||
4474 | 6. Moved the writing of debug_print from before to after the "senders" test | |
4475 | for routers. | |
4476 | ||
4477 | 7. Change 4.31/66 (moving the time when the Received: is generated) caused | |
4478 | problems for message scanning, either using a data ACL, or using | |
4479 | local_scan() because the Received: header was not generated till after they | |
4480 | were called (in order to set the time as the time of reception completion). | |
4481 | I have revised the way this works. The header is now generated after the | |
4482 | body is received, but before the ACL or local_scan() are called. After they | |
4483 | are run, the timestamp in the header is updated. | |
4484 | ||
4485 | ||
4486 | Exim version 4.33 | |
4487 | ----------------- | |
4488 | ||
4489 | 1. Change 4.24/6 introduced a bug because the SIGALRM handler was disabled | |
4490 | before starting a queue runner without re-exec. This happened only when | |
4491 | deliver_drop_privilege was set or when the Exim user was set to root. The | |
4492 | effect of the bug was that timeouts during subsequent deliveries caused | |
4493 | crashes instead of being properly handled. The handler is now left at its | |
4494 | default (and expected) setting. | |
4495 | ||
4496 | 2. The other case in which a daemon avoids a re-exec is to deliver an incoming | |
4497 | message, again when deliver_drop_privilege is set or Exim is run as root. | |
4498 | The bug described in (1) was not present in this case, but the tidying up | |
4499 | of the other signals was missing. I have made the two cases consistent. | |
4500 | ||
4501 | 3. The ignore_target_hosts setting on a manualroute router was being ignored | |
4502 | for hosts that were looked up using the /MX notation. | |
4503 | ||
4504 | 4. Added /ignore=<ip list> feature to @mx_any, @mx_primary, and @mx_secondary | |
4505 | in domain lists. | |
4506 | ||
4507 | 5. Change 4.31/55 was buggy, and broke when there was a rewriting rule that | |
4508 | operated on the sender address. After changing the $sender_address to <> | |
4509 | for the sender address verify, Exim was re-instated it as the original | |
4510 | (before rewriting) address, but remembering that it had rewritten it, so it | |
4511 | wasn't rewriting it again. This bug also had the effect of breaking the | |
4512 | sender address verification caching when the sender address was rewritten. | |
4513 | ||
4514 | 6. The ignore_target_hosts option was being ignored by the ipliteral router. | |
4515 | This has been changed so that if the ip literal address matches | |
4516 | ignore_target_hosts, the router declines. | |
4517 | ||
4518 | 7. Added expansion conditions match_domain, match_address, and match_local_ | |
4519 | part (NOT match_host). | |
4520 | ||
4521 | 8. The placeholder for the Received: header didn't have a length field set. | |
4522 | ||
4523 | 9. Added code to Exim itself and to exim_lock to test for a specific race | |
4524 | condition that could lead to file corruption when using MBX delivery. The | |
4525 | issue is with the lockfile that is created in /tmp. If this file is removed | |
4526 | after a process has opened it but before that process has acquired a lock, | |
4527 | there is the potential for a second process to recreate the file and also | |
4528 | acquire a lock. This could lead to two Exim processes writing to the file | |
4529 | at the same time. The added code performs the same test as UW imapd; it | |
4530 | checks after acquiring the lock that its file descriptor still refers to | |
4531 | the same named file. | |
4532 | ||
4533 | 10. The buffer for building added header lines was of fixed size, 8192 bytes. | |
4534 | It is now parameterized by HEADER_ADD_BUFFER_SIZE and this can be adjusted | |
4535 | when Exim is built. | |
4536 | ||
4537 | 11. Added the smtp_active_hostname option. If used, this will typically be made | |
4538 | to depend on the incoming interface address. Because $interface_address is | |
4539 | not set up until the daemon has forked a reception process, error responses | |
4540 | that can happen earlier (such as "too many connections") no longer contain | |
4541 | a host name. | |
4542 | ||
4543 | 12. If an expansion in a condition on a "warn" statement fails because a lookup | |
4544 | defers, the "warn" statement is abandoned, and the next ACL statement is | |
4545 | processed. Previously this caused the whole ACL to be aborted. | |
4546 | ||
4547 | 13. Added the iplsearch lookup type. | |
4548 | ||
4549 | 14. Added ident_timeout as a log selector. | |
4550 | ||
4551 | 15. Added tls_certificate_verified as a log selector. | |
4552 | ||
4553 | 16. Added a global option tls_require_ciphers (compare the smtp transport | |
4554 | option of the same name). This controls incoming TLS connections. | |
4555 | ||
4556 | 17. I finally figured out how to make tls_require_ciphers do a similar thing | |
4557 | in GNUtls to what it does in OpenSSL, that is, set up an appropriate list | |
4558 | before starting the TLS session. | |
4559 | ||
4560 | 18. Tabs are now shown as \t in -bP output. | |
4561 | ||
4562 | 19. If the log selector return_path_on_delivery was set, Exim crashed when | |
4563 | bouncing a message because it had too many Received: header lines. | |
4564 | ||
4565 | 20. If two routers both had headers_remove settings, and the first one included | |
4566 | a superfluous trailing colon, the final name in the first list and the | |
4567 | first name in the second list were incorrectly joined into one item (with a | |
4568 | colon in the middle). | |
4569 | ||
4570 | ||
4571 | Exim version 4.32 | |
4572 | ----------------- | |
4573 | ||
4574 | 1. Added -C and -D options to the exinext utility, mainly to make it easier | |
4575 | to include in the automated testing, but these could be helpful when | |
4576 | multiple configurations are in use. | |
4577 | ||
4578 | 2. The exinext utility was not formatting the output nicely when there was | |
4579 | an alternate port involved in the retry record key, nor when there was a | |
4580 | message id as well (for retries that were specific to a specific message | |
4581 | and a specific host). It was also confused by IPv6 addresses, because of | |
4582 | the additional colons they contain. I have fixed the IPv4 problem, and | |
4583 | patched it up to do a reasonable job for IPv6. | |
4584 | ||
4585 | 3. When there is an error after a MAIL, RCPT, or DATA SMTP command during | |
4586 | delivery, the log line now contains "pipelined" if PIPELINING was used. | |
4587 | ||
4588 | 4. An SMTP transport process used to panic and die if the bind() call to set | |
4589 | an explicit outgoing interface failed. This has been changed; it is now | |
4590 | treated in the same way as a connect() failure. | |
4591 | ||
4592 | 5. A reference to $sender_host_name in the part of a conditional expansion | |
4593 | that was being skipped was still causing a DNS lookup. This no longer | |
4594 | occurs. | |
4595 | ||
4596 | 6. The def: expansion condition was not recognizing references to header lines | |
4597 | that used bh_ and bheader_. | |
4598 | ||
4599 | 7. Added the _cache feature to named lists. | |
4600 | ||
4601 | 8. The code for checking quota_filecount in the appendfile transport was | |
4602 | allowing one more file than it should have been. | |
4603 | ||
4604 | 9. For compatibility with Sendmail, the command line option | |
4605 | ||
4606 | -prval:sval | |
4607 | ||
4608 | is equivalent to | |
4609 | ||
4610 | -oMr rval -oMs sval | |
4611 | ||
4612 | and sets the incoming protocol and host name (for trusted callers). The | |
4613 | host name and its colon can be omitted when only the protocol is to be set. | |
4614 | Note the Exim already has two private options, -pd and -ps, that refer to | |
4615 | embedded Perl. It is therefore impossible to set a protocol value of "d" or | |
4616 | "s", but I don't think that's a major issue. | |
4617 | ||
4618 | 10. A number of refactoring changes to the code, none of which should affect | |
4619 | Exim's behaviour: | |
4620 | ||
4621 | (a) The number of logging options was getting close to filling up the | |
4622 | 32-bit word that was used as a bit map. I have split them into two classes: | |
4623 | those that are passed in the argument to log_write(), and those that are | |
4624 | only ever tested independently outside of that function. These are now in | |
4625 | separate 32-bit words, so there is plenty of room for expansion again. | |
4626 | There is no change in the user interface or the logging behaviour. | |
4627 | ||
4628 | (b) When building, for example, log lines, the code previously used a | |
4629 | macro that called string_cat() twice, in order to add two strings. This is | |
4630 | not really sufficiently general. Furthermore, there was one instance where | |
4631 | it was actually wrong because one of the argument was used twice, and in | |
4632 | one call a function was used. (As it happened, calling the function twice | |
4633 | did not affect the overall behaviour.) The macro has been replaced by a | |
4634 | function that can join an arbitrary number of extra strings onto a growing | |
4635 | string. | |
4636 | ||
4637 | (c) The code for expansion conditions now uses a table and a binary chop | |
4638 | instead of a serial search (which was left over from when there were very | |
4639 | few conditions). Also, it now recognizes conditions like "pam" even when | |
4640 | the relevant support is not compiled in: a suitably worded error message is | |
4641 | given if an attempt is made to use such a condition. | |
4642 | ||
4643 | 11. Added ${time_interval:xxxxx}. | |
4644 | ||
4645 | 12. A bug was causing one of the ddress fields not to be passed back correctly | |
4646 | from remote delivery subprocesses. The field in question was not being | |
4647 | subsequently used, so this caused to problems in practice. | |
4648 | ||
4649 | 13. Added new log selectors queue_time and deliver_time. | |
4650 | ||
4651 | 14. Might have fixed a bug in maildirsizefile handling that threw up | |
4652 | "unexpected character" debug warnings, and recalculated the data | |
4653 | unnecessarily. In any case, I expanded the warning message to give more | |
4654 | information. | |
4655 | ||
4656 | 15. Added the message "Restricted characters in address" to the statements in | |
4657 | the default ACL that block characters like @ and % in local parts. | |
4658 | ||
4659 | 16. Change 71 for release 4.31 proved to be much less benign that I imagined. | |
4660 | Three changes have been made: | |
4661 | ||
4662 | (a) There was a serious bug; a negative response to MAIL caused the whole | |
4663 | recipient domain to be cached as invalid, thereby blocking all messages | |
4664 | to all local parts at the same domain, from all senders. This bug has | |
4665 | been fixed. The domain is no longer cached after a negative response to | |
4666 | MAIL if the sender used is not empty. | |
4667 | ||
4668 | (b) The default behaviour of using MAIL FROM:<> for recipient callouts has | |
4669 | been restored. | |
4670 | ||
4671 | (c) A new callout option, "use_sender" has been added for people who want | |
4672 | the modified behaviour. | |
4673 | ||
4674 | ||
4675 | Exim version 4.31 | |
4676 | ----------------- | |
4677 | ||
4678 | 1. Removed "EXTRALIBS=-lwrap" from OS/Makefile-Unixware7 on the advice of | |
4679 | Larry Rosenman. | |
4680 | ||
4681 | 2. Removed "LIBS = -lresolv" from OS/Makefile-Darwin as it is not needed, and | |
4682 | indeed breaks things for older releases. | |
4683 | ||
4684 | 3. Added additional logging to the case where there is a problem reading data | |
4685 | from a filter that is running in a subprocess using a pipe, in order to | |
4686 | try to track down a specific problem. | |
4687 | ||
4688 | 4. Testing facility fudge: when running in the test harness and attempting | |
4689 | to connect to 10.x.x.x (expecting a connection timeout) I'm now sometimes | |
4690 | getting "No route to host". Convert this to a timeout. | |
4691 | ||
4692 | 5. Define ICONV_ARG2_TYPE as "char **" for Unixware7 to avoid compiler | |
4693 | warning. | |
4694 | ||
4695 | 6. Some OS don't have socklen_t but use size_t instead. This affects the | |
4696 | fifth argument of getsockopt() amongst other things. This is now | |
4697 | configurable by a macro called SOCKLEN_T which defaults to socklen_t, but | |
4698 | can be set for individual OS. I have set it for SunOS5, OSF1, and | |
4699 | Unixware7. Current versions of SunOS5 (aka Solaris) do have socklen_t, but | |
4700 | some earlier ones do not. | |
4701 | ||
4702 | 7. Change 4.30/15 was not doing the test caselessly. | |
4703 | ||
4704 | 8. The standard form for an IPv6 address literal was being rejected by address | |
4705 | parsing in, for example, MAIL and RCPT commands. An example of this kind of | |
4706 | address is [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts | |
4707 | this, as well as the form without the "IPv6" on the front (but only when | |
4708 | address literals are enabled, of course). | |
4709 | ||
4710 | 9. Added some casts to avoid compiler warnings in OS/os.c-Linux. | |
4711 | ||
4712 | 10. Exim crashed if a message with an empty sender address specified by -f | |
4713 | encountered a router with an errors_to setting. This could be provoked only | |
4714 | by a command such as | |
4715 | ||
4716 | exim -f "" ... | |
4717 | ||
4718 | where an empty string was supplied; "<>" did not hit this bug. | |
4719 | ||
4720 | 11. Installed PCRE release 4.5. | |
4721 | ||
4722 | 12. If EHLO/HELO was rejected by an ACL, the value of $sender_helo_name | |
4723 | remained set. It is now erased. | |
4724 | ||
4725 | 13. exiqgrep wasn't working on MacOS X because it didn't correctly compute | |
4726 | times from message ids (which are base 36 rather than the normal 62). | |
4727 | ||
4728 | 14. "Expected" SMTP protocol errors that can arise when PIPELINING is in use | |
4729 | were being counted as actual protocol errors, and logged if the log | |
4730 | selector +smtp_protocol_error was set. One cannot be perfect in this test, | |
4731 | but now, if PIPELINING has been advertised, RCPT following a rejected MAIL, | |
4732 | and DATA following a set of rejected RCPTs do not count as protocol errors. | |
4733 | In other words, Exim assumes they were pipelined, though this may not | |
4734 | actually be the case. Of course, in all cases the client gets an | |
4735 | appropriate error code. | |
4736 | ||
4737 | 15. If a lookup fails in an ACL condition, a message about the failure may | |
4738 | be available; it is used if testing the ACL cannot continue, because most | |
4739 | such messages specify what the cause of the deferral is. However, some | |
4740 | messages (e.g. "MYSQL: no data found") do not cause a defer. There was bug | |
4741 | that caused an old message to be retained and used if a later statement | |
4742 | caused a defer, replacing the real cause of the deferral. | |
4743 | ||
4744 | 16. If an IP address had so many PTR records that the DNS lookup buffer | |
4745 | was not large enough to hold them, Exim could crash while trying to process | |
4746 | the truncated data. It now detects and logs this case. | |
4747 | ||
4748 | 17. Further to 4.21/58, another change has been made: if (and only if) the | |
4749 | first line of a message (the first header line) ends with CRLF, a bare LF | |
4750 | in a subsequent header line has a space inserted after it, so as not to | |
4751 | terminate the header. | |
4752 | ||
4753 | 18. Refactoring: tidied an ugly bit of code in appendfile that copied data | |
4754 | unnecessarily, used atoi() instead of strtol(), and didn't check the | |
4755 | termination when getting file sizes from file names by regex. | |
4756 | ||
4757 | 19. Completely re-implemented the support for maildirsize files, in the light | |
4758 | of a number of problems with the previous contributed implementation | |
4759 | (4.30/29). In particular: | |
4760 | ||
4761 | . If the quota is zero, the maildirsize file is maintained, but no quota is | |
4762 | imposed. | |
4763 | ||
4764 | . If the maildir directory does not exist, it is created before any attempt | |
4765 | to write a maildirsize file. | |
4766 | ||
4767 | . The quota value in the file is just a cache; if the quota is changed in | |
4768 | the transport, the new value overrides. | |
4769 | ||
4770 | . A regular expression is available for excluding directories from the | |
4771 | count. | |
4772 | ||
4773 | 20. The autoreply transport checks the characters in options that define the | |
4774 | message's headers; it allows continued headers, but it was checking with | |
4775 | isspace() after an embedded newline instead of explicitly looking for a | |
4776 | space or a tab. | |
4777 | ||
4778 | 21. If all the "regular" hosts to which an address was routed had passed their | |
4779 | expiry times, and had not reached their retry times, the address was | |
4780 | bounced, even if fallback hosts were defined. Now Exim should go on to try | |
4781 | the fallback hosts. | |
4782 | ||
4783 | 22. Increased buffer sizes in the callout code from 1024 to 4096 to match the | |
4784 | equivalent code in the SMTP transport. Some hosts send humungous responses | |
4785 | to HELO/EHLO, more than 1024 it seems. | |
4786 | ||
4787 | 23. Refactoring: code in filter.c used (void *) for "any old type" but this | |
4788 | gives compiler warnings in some environments. I've now done it "properly", | |
4789 | using a union. | |
4790 | ||
4791 | 24. The replacement for inet_ntoa() that is used with gcc on IRIX systems | |
4792 | (because of problems with the built-in one) was declared to return uschar * | |
4793 | instead of char *, causing compiler failure. | |
4794 | ||
4795 | 25. Fixed a file descriptor leak when processing alias/forward files. | |
4796 | ||
4797 | 26. Fixed a minor format string issue in dbfn.c. | |
4798 | ||
4799 | 27. Typo in exim.c: ("dmbnz" for "dbmnz"). | |
4800 | ||
4801 | 28. If a filter file refered to $h_xxx or $message_headers, and the headers | |
4802 | contained RFC 2047 "words", Exim's memory could, under certain conditions, | |
4803 | become corrupted. | |
4804 | ||
4805 | 29. When a sender address is verified, it is cached, to save repeating the test | |
4806 | when there is more than one recipient in a message. However, when the | |
4807 | verification involves a callout, it is possible for different callout | |
4808 | options to be set for different recipients. It is too complicated to keep | |
4809 | track of this in the cache, so now Exim always runs a verification when a | |
4810 | callout is required, relying on the callout cache for the optimization. | |
4811 | The overhead is duplication of the address routing, but this should not be | |
4812 | too great. | |
4813 | ||
4814 | 30. Fixed a bug in callout caching. If a RCPT command caused the sender address | |
4815 | to be verified with callout=postmaster, and the main callout worked but the | |
4816 | postmaster check failed, the verification correctly failed. However, if a | |
4817 | subsequent RCPT command asked for sender verification *without* the | |
4818 | postmaster check, incorrect caching caused this verification also to fail, | |
4819 | incorrectly. | |
4820 | ||
4821 | 31. Exim caches DNS lookup failures so as to avoid multiple timeouts; however, | |
4822 | it was not caching the DNS options (qualify_single, search_parents) that | |
4823 | were used when the lookup failed. A subsequent lookup with different | |
4824 | options therefore always gave the same answer, though there were cases | |
4825 | where it should not have. (Example: a "domains = !$mx_any" option on a | |
4826 | dnslookup router: the "domains" option is always processed without any | |
4827 | widening, but the router might have qualify_single set.) Now Exim uses the | |
4828 | cached value only when the same options are set. | |
4829 | ||
4830 | 32. Added John Jetmore's "exipick" utility to the distribution. | |
4831 | ||
4832 | 33. GnuTLS: When an attempt to start a TLS session fails for any reason other | |
4833 | than a timeout (e.g. a certificate is required, and is not provided), an | |
4834 | Exim server now closes the connection immediately. Previously it waited for | |
4835 | the client to close - but if the client is SSL, it seems that they each | |
4836 | wait for each other, leading to a delay before one of them times out. | |
4837 | ||
4838 | 34: GnuTLS: Updated the code to use the new GnuTLS 1.0.0 API. I have not | |
4839 | maintained 0.8.x compatibility because I don't think many are using it, and | |
4840 | it is clearly obsolete. | |
4841 | ||
4842 | 35. Added TLS support for CRLs: a tls_crl global option and one for the smtp | |
4843 | transport. | |
4844 | ||
4845 | 36. OpenSSL: $tls_certificate_verified was being set to 1 even if the | |
4846 | client certificate was expired. A simple patch fixes this, though I don't | |
4847 | understand the full logic of why the verify callback is called multiple | |
4848 | times. | |
4849 | ||
4850 | 37. OpenSSL: a patch from Robert Roselius: "Enable client-bug workaround. | |
4851 | Versions of OpenSSL as of 0.9.6d include a 'CBC countermeasure' feature, | |
4852 | which causes problems with some clients (such as the Certicom SSL Plus | |
4853 | library used by Eudora). This option, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS, | |
4854 | disables the coutermeasure allowing Eudora to connect." | |
4855 | ||
4856 | 38. Exim was not checking that a write() to a log file succeeded. This could | |
4857 | lead to Bad Things if a log got too big, in particular if it hit a file | |
4858 | size limit. Exim now panics and dies if it cannot write to a log file, just | |
4859 | as it does if it cannot open a log file. | |
4860 | ||
4861 | 39. Modified OS/Makefile-Linux so that it now contains | |
4862 | ||
4863 | CFLAGS=-O -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE | |
4864 | ||
4865 | The two -D definitions ensure that Exim is compiled with large file | |
4866 | support, which makes it possible to handle log files that are bigger than | |
4867 | 2^31. | |
4868 | ||
4869 | 40. Fixed a subtle caching bug: if (in an ACL or a set of routers, for | |
4870 | instance) a domain was checked against a named list that involved a lookup, | |
4871 | causing $domain_data to be set, then another domain was checked against the | |
4872 | same list, then the first domain was re-checked, the value of $domain_data | |
4873 | after the final check could be wrong. In particular, if the second check | |
4874 | failed, it could be set empty. This bug probably also applied to | |
4875 | $localpart_data. | |
4876 | ||
4877 | 41. The strip_trailing_dot option was not being applied to the address given | |
4878 | with the -f command-line option. | |
4879 | ||
4880 | 42. The code for reading a message's header from the spool was incrementing | |
4881 | $received_count, but never initializing it. This meant that the value was | |
4882 | incorrect (doubled) while delivering a message in the same process in which | |
4883 | it was received. In the most common configuration of Exim, this never | |
4884 | happens - a fresh exec is done - but it can happen when | |
4885 | deliver_drop_privilege is set. | |
4886 | ||
4887 | 43. When Exim logs an SMTP synchronization error - client data sent too soon - | |
4888 | it now includes up to 150 characters of the unexpected data in the log | |
4889 | line. | |
4890 | ||
4891 | 44. The exim_dbmbuild utility uses fixed size buffers for reading input lines | |
4892 | and building data strings. The size of both of these buffers was 10 000 | |
4893 | bytes - far larger than anybody would *ever* want, thought I. Needless to | |
4894 | say, somebody hit the limit. I have increased the maximum line length to | |
4895 | 20 000 and the maximum data length of concatenated lines to 100 000. I have | |
4896 | also fixed two bugs, because there was no checking on these buffers. Tsk, | |
4897 | tsk. Now exim_dbmbuild gives a message and exits with an error code if a | |
4898 | buffer is too small. | |
4899 | ||
4900 | 45. The exim_dbmbuild utility did not support quoted keys, as Exim does in | |
4901 | lsearch lookups. Now it does. | |
4902 | ||
4903 | 46. When parsing a route_list item in a manualroute router, a fixed-length | |
4904 | buffer was used for the list of hosts. I made this 1024 bytes long, | |
4905 | thinking that nobody would ever have a list of hosts that long. Wrong. | |
4906 | Somebody had a whole pile of complicated expansion conditions, and the | |
4907 | string was silently truncated, leading to an expansion error. It turns out | |
4908 | that it is easier to change to an unlimited length (owing to other changes | |
4909 | that have happened since this code was originally written) than to build | |
4910 | structure for giving a limitation error. The length of the item that | |
4911 | expands into the list of hosts is now unlimited. | |
4912 | ||
4913 | 47. The lsearch lookup could not handle data where the length of text line was | |
4914 | more than 4095 characters. Such lines were truncated, leading to shortened | |
4915 | data being returned. It should now handle lines of any length. | |
4916 | ||
4917 | 48. Minor wording revision: "cannot test xxx in yyy ACL" becomes "cannot test | |
4918 | xxx condition in yyy ACL" (e.g. "cannot test domains condition in DATA | |
4919 | ACL"). | |
4920 | ||
4921 | 49. Cosmetic tidy to scripts like exicyclog that are generated by globally | |
4922 | replacing strings such as BIN_DIRECTORY in a source file: the replacement | |
4923 | no longer happens in comment lines. A list of replacements is now placed | |
4924 | at the head of all of the source files, except those whose only change is | |
4925 | to replace PERL_COMMAND in the very first #! line. | |
4926 | ||
4927 | 50. Replaced the slow insertion sort in queue.c, for sorting the list of | |
4928 | messages on the queue, with a bottom-up merge sort, using code contributed | |
4929 | by Michael Haardt. This should make operations like -bp somewhat faster on | |
4930 | large queues. It won't affect queue runners, except when queue_run_in_order | |
4931 | is set. | |
4932 | ||
4933 | 51. Installed eximstats 1.31 in the distribution. | |
4934 | ||
4935 | 52. Added support for SRV lookups to the dnslookup router. | |
4936 | ||
4937 | 53. If an ACL referred to $message_body or $message_body_end, the value was not | |
4938 | reset for any messages that followed in the same SMTP session. | |
4939 | ||
4940 | 54. The store-handling optimization for building very long strings was not | |
4941 | differentiating between the different store pools. I don't think this | |
4942 | actually made any difference in practice, but I've tidied it. | |
4943 | ||
4944 | 55. While running the routers to verify a sender address, $sender_address | |
4945 | was still set to the sender address. This is wrong, because when routing to | |
4946 | send a bounce to the sender, it would be empty. Therefore, I have changed | |
4947 | it so that, while verifying a sender address, $sender_address is set to <>. | |
4948 | (There is no change to what happens when verifying a recipient address.) | |
4949 | ||
4950 | 56. After finding MX (or SRV) records, Exim was doing a DNS lookup for the | |
4951 | target A or AAAA records (if not already returned) without resetting the | |
4952 | qualify_single or search_parents options of the DNS resolver. These are | |
4953 | inappropriate in this case because the targets of MX and SRV records must | |
4954 | be FQDNs. A broken DNS record could cause trouble if it happened to have a | |
4955 | target that, when qualified, matched something in the local domain. These | |
4956 | two options are now turned off when doing these lookups. | |
4957 | ||
4958 | 57. It seems that at least some releases of Reiserfs (which does not have the | |
4959 | concept of a fixed number of inodes) returns zero and not -1 for the | |
4960 | number of available inodes. This interacted badly with check_spool_inodes, | |
4961 | which assumed that -1 was the "no such thing" setting. What I have done is | |
4962 | to check that the total number of inodes is greater than zero before doing | |
4963 | the test of how many are available. | |
4964 | ||
4965 | 58. When a "warn" ACL statement has a log_message modifier, the message is | |
4966 | remembered, and not repeated. This is to avoid a lot of repetition when a | |
4967 | message has many recipients that cause the same warning to be written. | |
4968 | Howewer, Exim was preserving the list of already written lines for an | |
4969 | entire SMTP session, which doesn't seem right. The memory is now reset if a | |
4970 | new message is started. | |
4971 | ||
4972 | 59. The "rewrite" debugging flag was not showing the result of rewriting in the | |
4973 | debugging output unless log_rewrite was also set. | |
4974 | ||
4975 | 60. Avoid a compiler warning on 64-bit systems in dsearch.c by avoiding the use | |
4976 | of (int)(handle) when we know that handle contains (void *)(-1). | |
4977 | ||
4978 | 61. The Exim daemon panic-logs an error return when it closes the incoming | |
4979 | connection. However "connection reset by peer" seems to be common, and | |
4980 | isn't really an error worthy of noting specially, so that particular error | |
4981 | is no long logged. | |
4982 | ||
4983 | 62. When Exim is trying to find all the local interfaces, it used to panic and | |
4984 | die if the ioctl to get the interface flags failed. However, it seems that | |
4985 | on at least one OS (Solaris 9) it is possible to have an interface that is | |
4986 | included in the list of interfaces, but for which you get a failure error | |
4987 | for this call. This happens when the interface is not "plumbed" into a | |
4988 | protocol (i.e. neither IPv4 nor IPv6). I've changed the code so that a | |
4989 | failure of the "get flags" call assumes that the interface is down. | |
4990 | ||
4991 | 63. Added a ${eval10: operator, which assumes all numbers are decimal. This | |
4992 | makes life easier for people who are doing arithmetic on fields extracted | |
4993 | from dates, where you often get leading zeros that should not be | |
4994 | interpreted as octal. | |
4995 | ||
4996 | 64. Added qualify_domain to the redirect router, to override the global | |
4997 | setting. | |
4998 | ||
4999 | 65. If a pathologically long header line contained very many addresses (the | |
5000 | report of this problem mentioned 10 000) and each of them was rewritten, | |
5001 | Exim could use up a very large amount of memory. (It kept on making new | |
5002 | copies of the header line as it rewrote, and never released the old ones.) | |
5003 | At the expense of a bit more processing, the header rewriting function has | |
5004 | been changed so that it no longer eats memory in this way. | |
5005 | ||
5006 | 66. The generation of the Received: header has been moved from the time that a | |
5007 | message starts to be received, to the time that it finishes. The timestamp | |
5008 | in the Received: header should now be very close to that of the <= log | |
5009 | line. There are two side-effects of this change: | |
5010 | ||
5011 | (a) If a message is rejected by a DATA or non-SMTP ACL or local_scan(), the | |
5012 | logged header lines no longer include the local Received: line, because | |
5013 | it has not yet been created. The same applies to a copy of the message | |
5014 | that is returned to a non-SMTP sender when a message is rejected. | |
5015 | ||
5016 | (b) When a filter file is tested using -bf, no additional Received: header | |
5017 | is added to the test message. After some thought, I decided that this | |
5018 | is a bug fix. | |
5019 | ||
5020 | This change does not affect the value of $received_for. It is still set | |
5021 | after address rewriting, but before local_scan() is called. | |
5022 | ||
5023 | 67. Installed the latest Cygwin-specific files from the Cygwin maintainer. | |
5024 | ||
5025 | 68. GnuTLS: If an empty file is specified for tls_verify_certificates, GnuTLS | |
5026 | gave an unhelpful panic error message, and a defer error. I have managed to | |
5027 | change this behaviour so that it now rejects any supplied certificate, | |
5028 | which seems right, as the list of acceptable certificates is empty. | |
5029 | ||
5030 | 69. OpenSSL: If an empty file is specified for tls_verify_certificates, OpenSSL | |
5031 | gave an unhelpful defer error. I have not managed to make this reject any | |
5032 | supplied certificates, but the error message it gives is "no certificate | |
5033 | supplied", which is not helpful. | |
5034 | ||
5035 | 70. exigrep's output now also includes lines that are not associated with any | |
5036 | message, but which match the given pattern. Implemented by a patch from | |
5037 | Martin Sluka, which also tidied up the Perl a bit. | |
5038 | ||
5039 | 71. Recipient callout verification, like sender verification, was using <> in | |
5040 | the MAIL FROM command. This isn't really the right thing, since the actual | |
5041 | sender may affect whether the remote host accepts the recipient or not. I | |
5042 | have changed it to use the actual sender in the callout; this means that | |
5043 | the cache record is now keyed on a recipient/sender pair, not just the | |
5044 | recipient address. There doesn't seem to be a real danger of callout loops, | |
5045 | since a callout by the remote host to check the sender would use <>. | |
5046 | [SEE ABOVE: changed after hitting problems.] | |
5047 | ||
5048 | 72. Exim treats illegal SMTP error codes that do not begin with 4 or 5 as | |
5049 | temporary errors. However, in the case of such a code being given after | |
5050 | the end of a data transmission (i.e. after ".") Exim was failing to write | |
5051 | a retry record for the message. (Yes, there was some broken host that was | |
5052 | actually sending 8xx at this point.) | |
5053 | ||
5054 | 73. An unknown lookup type in a host list could cause Exim to panic-die when | |
5055 | the list was checked. (An example that provoked this was putting <; in the | |
5056 | middle of a list instead of at the start.) If this happened during a DATA | |
5057 | ACL check, a -D file could be left lying around. This kind of configuration | |
5058 | error no longer causes Exim to die; instead it causes a defer errror. The | |
5059 | incident is still logged to the main and panic logs. | |
5060 | ||
5061 | 74. Buglet left over from Exim 3 conversion. The message "too many messages | |
5062 | in one connection" was written to the rejectlog but not the mainlog, except | |
5063 | when address rewriting (yes!) was being logged. | |
5064 | ||
5065 | 75. Added write_rejectlog option. | |
5066 | ||
5067 | 76. When a system filter was run not as root (that is, when system_filter_user | |
5068 | was set), the values of the $n variables were not being returned to the | |
5069 | main process; thus, they were not subsequently available in the $sn | |
5070 | variables. | |
5071 | ||
5072 | 77. Added +return_path_on_delivery log selector. | |
5073 | ||
5074 | 78. A connection timeout was being treated differently from recipients deferred | |
5075 | when testing hosts_max_try with a message that was older than the host's | |
5076 | retry timeout. (The host should not be counted, thus allowing all hosts to | |
5077 | be tried at least once before bouncing.) This may have been the cause of an | |
5078 | occasionally reported bug whereby a message would remain on the queue | |
5079 | longer than the retry timeout, but would be bounced if a delivery was | |
5080 | forced. I say "may" because I never totally pinned down the problem; | |
5081 | setting up timeout/retry tests is difficult. See also the next item. | |
5082 | ||
5083 | 79. The ultimate address timeout was not being applied to errors that involved | |
5084 | a combination of host plus message (for example, a timeout on a MAIL | |
5085 | command). When an address resolved to a number of possible hosts, and they | |
5086 | were not all tried for each delivery (e.g. because of hosts_max_try), a | |
5087 | message could remain on the queue longer than the retry timeout. | |
5088 | ||
5089 | 80. Sieve bug: "stop" inside "elsif" was broken. Applied a patch from Michael | |
5090 | Haardt. | |
5091 | ||
5092 | 81. Fixed an obscure SMTP outgoing bug which required at least the following | |
5093 | conditions: (a) there was another message waiting for the same server; | |
5094 | (b) the server returned 5xx to all RCPT commands in the first message so | |
5095 | that the message was not completed; (c) the server dropped the connection | |
5096 | or gave a negative response to the RSET that Exim sends to abort the | |
5097 | transaction. The observed case was a dropped connection after DATA that had | |
5098 | been sent in pipelining mode. That is, the server had advertised PIPELINING | |
5099 | but was not implementing it correctly. The effect of the bug was incorrect | |
5100 | behaviour, such as trying another host, and this could lead to a crash. | |
5101 | ||
5102 | ||
5103 | Exim version 4.30 | |
5104 | ----------------- | |
5105 | ||
5106 | 1. The 3rd arguments to getsockname(), getpeername(), and accept() in exim.c | |
5107 | and daemon.c were passed as pointers to ints; they should have been | |
5108 | pointers to socklen_t variables (which are typically unsigned ints). | |
5109 | ||
5110 | 2. Some signed/unsigned type warnings in the os.c file for Linux have been | |
5111 | fixed. | |
5112 | ||
5113 | 3. Fixed a really odd bug that affected only the testing scheme; patching a | |
5114 | certain fixed string in the binary changed the value of another string that | |
5115 | happened to be identical to the end of the original first string. | |
5116 | ||
5117 | 4. When gethostbyname() (or equivalent) is passed an IP address as a "host | |
5118 | name", it returns that address as the IP address. On some operating | |
5119 | systems (e.g. Solaris), it also passes back the IP address string as the | |
5120 | "host name". However, on others (e.g. Linux), it passes back an empty | |
5121 | string. Exim wasn't checking for this, and was changing the host name to an | |
5122 | empty string, assuming it had been canonicized. | |
5123 | ||
5124 | 5. Although rare, it is permitted to have more than one PTR record for a given | |
5125 | IP address. I thought that gethostbyaddr() or getipnodebyaddr() always gave | |
5126 | all the names associated with an address, because they do in Solaris. | |
5127 | However, it seems that they do not in Linux for data that comes from the | |
5128 | DNS. If an address in /etc/hosts has multiple names, they _are_ all given. | |
5129 | I found this out when I moved to a new Linux workstation and tried to run | |
5130 | the Exim test suite. | |
5131 | ||
5132 | To get round this problem I have changed the code so that it now does its | |
5133 | own call to the DNS to look up PTR records when searching for a host name. | |
5134 | If nothing can be found in the DNS, it tries gethostbyaddr(), so that | |
5135 | addresses that are only in /etc/hosts are still found. | |
5136 | ||
5137 | This behaviour is, however, controlled by an option called host_lookup_ | |
5138 | order, which defaults to "bydns:byaddr". If people want to use the other | |
5139 | order, or indeed, just use one or the other means of lookup, they can | |
5140 | specify it in this variable. | |
5141 | ||
5142 | 6. If a PTR record yields an empty name, Exim treats it as non-existent. In | |
5143 | some operating systems, this comes back from gethostbyaddr() as an empty | |
5144 | string, and this is what Exim used to test for. However, it seems that in | |
5145 | other systems, "." is yielded. Exim now tests for this case too. | |
5146 | ||
5147 | 7. The values of check_spool_space and check_log_space are now held internally | |
5148 | as a number of kilobytes instead of an absolute number of bytes. If a | |
5149 | numbers is specified without 'K' or 'M', it is rounded up to the nearest | |
5150 | kilobyte. This means that much larger values can be stored. | |
5151 | ||
5152 | 8. Exim monitor: an attempt to get the action menu when not actually pointing | |
5153 | at a message produces an empty menu entitled "No message selected". This | |
5154 | works on Solaris (OpenWindows). However, XFree86 does not like a menu with | |
5155 | no entries in it ("Shell widget menu has zero width and/or height"). So I | |
5156 | have added a single, blank menu entry in this case. | |
5157 | ||
5158 | 9. Added ${quote_local_part. | |
5159 | ||
5160 | 10. MIME decoding is now applied to the contents of Subject: header lines when | |
5161 | they are logged. | |
5162 | ||
5163 | 11. Now that a reference to $sender_host_address automatically causes a reverse | |
5164 | lookup to occur if necessary (4.13/18), there is no need to arrange for a | |
5165 | host lookup before query-style lookups in lists that might use this | |
5166 | variable. This has therefore been abolished, and the "net-" prefix is no | |
5167 | longer necessary for query-style lookups. | |
5168 | ||
5169 | 12. The Makefile for SCO_SV contained a setting of LDFLAGS. This appears to | |
5170 | have been a typo for LFLAGS, so it has been changed. | |
5171 | ||
5172 | 13. The install script calls Exim with "-C /dev/null" in order to find the | |
5173 | version number. If ALT_CONFIG_PREFIX was set, this caused an error message | |
5174 | to be output. Howeve, since Exim outputs its version number before the | |
5175 | error, it didn't break the script. It just looked ugly. I fixed this by | |
5176 | always allowing "-C /dev/null" if the caller is root. | |
5177 | ||
5178 | 14. Ignore overlarge ACL variable number when reading spool file - insurance | |
5179 | against a later release with more variables having written the file. | |
5180 | ||
5181 | 15. The standard form for an IPv6 address literal was being rejected by EHLO. | |
5182 | Example: [IPv6:2002:c1ed:8229:10:202:2dff:fe07:a42a]. Exim now accepts | |
5183 | this, as well as the form without the "IPv6" on the front. | |
5184 | ||
5185 | 16. Added CHOWN_COMMAND=/usr/sbin/chown and LIBS=-lresolv to the | |
5186 | OS/Makefile-Darwin file. | |
5187 | ||
5188 | 17. Fixed typo in lookups/ldap.c: D_LOOKUP should be D_lookup. This applied | |
5189 | only to LDAP libraries that do not have LDAP_OPT_DEREF. | |
5190 | ||
5191 | 18. After change 4.21/52, "%ld" was used to format the contents of the $inode | |
5192 | variable. However, some OS use ints for inodes. I've added cast to long int | |
5193 | to get rid of the compiler warning. | |
5194 | ||
5195 | 19. I had forgotten to lock out "/../" in configuration file names when | |
5196 | ALT_CONFIG_PREFIX was set. | |
5197 | ||
5198 | 20. Routers used for verification do not need to specify transports. However, | |
5199 | if such a router generated a host list, and callout was configured, Exim | |
5200 | crashed, because it could not find a port number from the (non-existent) | |
5201 | transport. It now assumes port 25 in this circumstance. | |
5202 | ||
5203 | 21. Added the -t option to exigrep. | |
5204 | ||
5205 | 22. If LOOKUP_LSEARCH is defined, all three linear search methods (lsearch, | |
5206 | wildlsearch, nwildlsearch) are compiled. LOOKUP_WILDLSEARCH and LOOKUP_ | |
5207 | NWILDLSEARCH are now obsolete, but retained for compatibility. If either of | |
5208 | them is set, LOOKUP_LSEARCH is forced. | |
5209 | ||
5210 | 23. "exim -bV" now outputs a list of lookups that are included in the binary. | |
5211 | ||
5212 | 24. Added sender and host information to the "rejected by local_scan()" log | |
5213 | line; previously there was no indication of these. | |
5214 | ||
5215 | 25. Added .include_if_exists. | |
5216 | ||
5217 | 26. Change 3.952/11 added an explicit directory sync on top of a file sync for | |
5218 | Linux. It turns out that not all file systems support this. Apparently some | |
5219 | versions of NFS do not. (It's rare to put Exim's spool on NFS, but people | |
5220 | do it.) To cope with this, the error EINVAL, which means that sync-ing is | |
5221 | not supported on the file descriptor, is now ignored when Exim is trying to | |
5222 | sync a directory. This applies only to Linux. | |
5223 | ||
5224 | 27. Added -DBIND_8_COMPAT to the CLFAGS setting for Darwin. | |
5225 | ||
5226 | 28. In Darwin (MacOS X), the PAM headers are in /usr/include/pam and not in | |
5227 | /usr/include/security. There's now a flag in OS/os.h-Darwin to cope with | |
5228 | this. | |
5229 | ||
5230 | 29. Added support for maildirsize files from supplied patch (modified a bit). | |
5231 | ||
5232 | 30. The use of :fail: followed by an empty string could lead Exim to respond to | |
5233 | sender verification failures with (e.g.): | |
5234 | ||
5235 | 550 Verification failed for <xxx> | |
5236 | 550 Sender verify failed | |
5237 | ||
5238 | where the first response line was missing the '-' that indicates it is not | |
5239 | the final line of the response. | |
5240 | ||
5241 | 31. The loop for finding the name of the user that called Exim had a hardwired | |
5242 | limit of 10; it now uses the value of finduser_retries, which is used for | |
5243 | all other user lookups. | |
5244 | ||
5245 | 32. Added $received_count variable, available in data and not_smtp ACLs, and at | |
5246 | delivery time. | |
5247 | ||
5248 | 33. Exim was neglecting to zero errno before one call of strtol() when | |
5249 | expanding a string and expecting an integer value. On some systems this | |
5250 | resulted in spurious "integer overflow" errors. Also, it was casting the | |
5251 | result into an int without checking. | |
5252 | ||
5253 | 34. Testing for a connection timeout using "timeout_connect" in the retry rules | |
5254 | did not work. The code looks as if it has *never* worked, though it appears | |
5255 | to have been documented since at least releast 1.62. I have made it work. | |
5256 | ||
5257 | 35. The "timeout_DNS" error in retry rules, also documented since at least | |
5258 | 1.62, also never worked. As it isn't clear exactly what this means, and | |
5259 | clearly it isn't a major issue, I have abolished the feature by treating it | |
5260 | as "timeout", and writing a warning to the main and panic logs. | |
5261 | ||
5262 | 36. The display of retry rules for -brt wasn't always showing the error code | |
5263 | correctly. | |
5264 | ||
5265 | 37. Added new error conditions to retry rules: timeout_A, timeout_MX, | |
5266 | timeout_connect_A, timeout_connect_MX. | |
5267 | ||
5268 | 38. Rewriting the envelope sender at SMTP time did not allow it to be rewritten | |
5269 | to the empty sender. | |
5270 | ||
5271 | 39. The daemon was not analysing the content of -oX till after it had closed | |
5272 | stderr and disconnected from the controlling terminal. This meant that any | |
5273 | syntax errors were only noted on the panic log, and the return code from | |
5274 | the command was 0. By re-arranging the code a little, I've made the | |
5275 | decoding happen first, so such errors now appear on stderr, and the return | |
5276 | code is 1. However, the actual setting up of the sockets still happens in | |
5277 | the disconnected process, so errors there are still only recorded on the | |
5278 | panic log. | |
5279 | ||
5280 | 40. A daemon listener on a wildcard IPv6 socket that also accepts IPv4 | |
5281 | connections (as happens on some IP stacks) was logged at start up time as | |
5282 | just listening for IPv6. It now logs "IPv6 with IPv4". This differentiates | |
5283 | it from "IPv6 and IPv4", which means that two separate sockets are being | |
5284 | used. | |
5285 | ||
5286 | 41. The debug output for gethostbyname2() or getipnodebyname() failures now | |
5287 | says whether AF_INET or AF_INET6 was passed as an argument. | |
5288 | ||
5289 | 42. Exiwhat output was messed up when time zones were included in log | |
5290 | timestamps. | |
5291 | ||
5292 | 43. Exiwhat now gives more information about the daemon's listening ports, | |
5293 | and whether -tls-on-connect was used. | |
5294 | ||
5295 | 44. The "port" option of the smtp transport is now expanded. | |
5296 | ||
5297 | 45. A "message" modifier in a "warn" statement in a non-message ACL was being | |
5298 | silently ignored. Now an error message is written to the main and panic | |
5299 | logs. | |
5300 | ||
5301 | 46. There's a new ACL modifier called "logwrite" which writes to a log file | |
5302 | as soon as it is encountered. | |
5303 | ||
5304 | 47. Added $local_user_uid and $local_user_gid at routing time. | |
5305 | ||
5306 | 48. Exim crashed when trying to verify a sender address that was being | |
5307 | rewritten to "<>". | |
5308 | ||
5309 | 49. Exim was recognizing only a space character after ".include". It now also | |
5310 | recognizes a tab character. | |
5311 | ||
5312 | 50. Fixed several bugs in the Perl script that creates the exim.8 man page by | |
5313 | extracting the relevant information from the specification. The man page no | |
5314 | longer contains scrambled data for the -d option, and I've added a section | |
5315 | at the front about calling Exim under different names. | |
5316 | ||
5317 | 51. Added "extra_headers" argument to the "mail" command in filter files. | |
5318 | ||
5319 | 52. Redirecting mail to an unqualified address in a Sieve filter caused Exim to | |
5320 | crash. | |
5321 | ||
5322 | 53. Installed eximstats 1.29. | |
5323 | ||
5324 | 54. Added transport_filter_timeout as a generic transport option. | |
5325 | ||
5326 | 55. Exim no longer adds an empty Bcc: header to messages that have no To: or | |
5327 | Cc: header lines. This was required by RFC 822, but it not required by RFC | |
5328 | 2822. | |
5329 | ||
5330 | 56. Exim used to add From:, Date:, and Message-Id: header lines to any | |
5331 | incoming messages that did not have them. Now it does so only if the | |
5332 | message originates locally, that is, if there is no associated remote host | |
5333 | address. When Resent- header lines are present, this applies to the Resent- | |
5334 | lines rather than the non-Resent- lines. | |
5335 | ||
5336 | 57. Drop incoming SMTP connection after too many syntax or protocol errors. The | |
5337 | limit is controlled by smtp_max_synprot_errors, defaulting to 3. | |
5338 | ||
5339 | 58. Messages for configuration errors now include the name of the main | |
5340 | configuration file - useful now that there may be more than one file in a | |
5341 | list (.included file names were always shown). | |
5342 | ||
5343 | 59. Change 4.21/82 (run initgroups() when starting the daemon) causes problems | |
5344 | for those rare installations that do not start the daemon as root or run it | |
5345 | setuid root. I've cut out the call to initgroups() if the daemon is not | |
5346 | root at that time. | |
5347 | ||
5348 | 60. The Exim user and group can now be bound into the binary as text strings | |
5349 | that are looked up at the start of Exim's processing. | |
5350 | ||
5351 | 61. Applied a small patch for the Interbase code, supplied by Ard Biesheuvel. | |
5352 | ||
5353 | 62. Added $mailstore_basename variable. | |
5354 | ||
5355 | 63. Installed patch to sieve.c from Michael Haardt. | |
5356 | ||
5357 | 64. When Exim failed to open the panic log after failing to open the main log, | |
5358 | the original message it was trying to log was written to stderr and debug | |
5359 | output, but if they were not available (the usual case in production), it | |
5360 | was lost. Now it is written to syslog before the two lines that record the | |
5361 | failures to open the logs. | |
5362 | ||
5363 | 65. Users' Exim filters run in subprocesses under the user's uid. It is | |
5364 | possible for a "deliver" command or an alias in a "personal" command to | |
5365 | provoke an address rewrite. If logging of address rewriting is configured, | |
5366 | this fails because the process is not running as root or exim. There may be | |
5367 | a better way of dealing with this, but for the moment (because 4.30 needs | |
5368 | to be released), I have disabled address rewrite logging when running a | |
5369 | filter in a non-root, non-exim process. | |
5370 | ||
5371 | ||
5372 | Exim version 4.24 | |
5373 | ----------------- | |
5374 | ||
5375 | 1. The buildconfig auxiliary program wasn't quoting the value set for | |
5376 | HEADERS_CHARSET. This caused a compilation error complaining that 'ISO' was | |
5377 | not defined. This bug was masked in 4.22 by the effect that was fixed in | |
5378 | change 4.23/1. | |
5379 | ||
5380 | 2. Some messages that were rejected after a message id was allocated were | |
5381 | shown as "incomplete" by exigrep. It no longer does this for messages that | |
5382 | are rejected by local_scan() or the DATA or non-SMTP ACLs. | |
5383 | ||
5384 | 3. If a Message-ID: header used a domain literal in the ID, and Exim did not | |
5385 | have allow_domain_literals set, the ID did not get logged in the <= line. | |
5386 | Domain literals are now always recognized in Message-ID: header lines. | |
5387 | ||
5388 | 4. The first argument for a ${extract expansion item is the key name or field | |
5389 | number. Leading and trailing spaces in this item were not being ignored, | |
5390 | causing some misleading effects. | |
5391 | ||
5392 | 5. When deliver_drop_privilege was set, single queue runner processes started | |
5393 | manually (i.e. by the command "exim -q") or by the daemon (which uses the | |
5394 | same command in the process it spins off) were not dropping privilege. | |
5395 | ||
5396 | 6. When the daemon running as "exim" started a queue runner, it always | |
5397 | re-executed Exim in the spun-off process. This is a waste of effort when | |
5398 | deliver_drop_privilege is set. The new process now just calls the | |
5399 | queue-runner function directly. | |
5400 | ||
5401 | ||
5402 | Exim version 4.23 | |
5403 | ----------------- | |
5404 | ||
5405 | 1. Typo in the src/EDITME file: it referred to HEADERS_DECODE_TO instead of | |
5406 | HEADERS_CHARSET. | |
5407 | ||
5408 | 2. Change 4.21/73 introduced a bug. The pid file path set by -oP was being | |
5409 | ignored. Though the use of -oP was forcing the writing of a pid file, it | |
5410 | was always written to the default place. | |
5411 | ||
5412 | 3. If the message "no IP address found for host xxxx" is generated during | |
5413 | incoming verification, it is now followed by identification of the incoming | |
5414 | connection (so you can more easily find what provoked it). | |
5415 | ||
5416 | 4. Bug fix for Sieve filters: "stop" inside a block was not working properly. | |
5417 | ||
5418 | 5. Added some features to "harden" Exim a bit more against certain attacks: | |
5419 | ||
5420 | (a) There is now a build-time option called FIXED_NEVER_USERS that can | |
5421 | be put in Local/Makefile. This is like the never_users runtime option, | |
5422 | but it cannot be overridden. The default setting is "root". | |
5423 | ||
5424 | (b) If ALT_CONFIG_PREFIX is defined in Local/Makefile, it specifies a | |
5425 | prefix string with which any file named in a -C command line option | |
5426 | must start. | |
5427 | ||
5428 | (c) If ALT_CONFIG_ROOT_ONLY is defined in Local/Makefile, root privilege | |
5429 | is retained for -C and -D only if the caller of Exim is root. Without | |
5430 | it, the exim user may also use -C and -D and retain privilege. | |
5431 | ||
5432 | (d) If DISABLE_D_OPTION is defined in Local/Makefile, the use of the -D | |
5433 | command line option is disabled. | |
5434 | ||
5435 | 6. Macro names set by the -D option must start with an upper case letter, just | |
5436 | like macro names defined in the configuration file. | |
5437 | ||
5438 | 7. Added "dereference=" facility to LDAP. | |
5439 | ||
5440 | 8. Two instances of the typo "uknown" in the source files are fixed. | |
5441 | ||
5442 | 9. If a PERL_COMMAND setting in Local/Makefile was not at the start of a line, | |
5443 | the Configure-Makefile script screwed up while processing it. | |
5444 | ||
5445 | 10. Incorporated PCRE 4.4. | |
5446 | ||
5447 | 11. The SMTP synchronization check was not operating right at the start of an | |
5448 | SMTP session. For example, it could not catch a HELO sent before the client | |
5449 | waited for the greeting. There is now a check for outstanding input at the | |
5450 | point when the greeting is written. Because of the duplex, asynchronous | |
5451 | nature of TCP/IP, it cannot be perfect - the incorrect input may be on its | |
5452 | way, but not yet received, when the check is performed. | |
5453 | ||
5454 | 12. Added tcp_nodelay to make it possible to turn of the setting of TCP_NODELAY | |
5455 | on TCP/IP sockets, because this apparently causes some broken clients to | |
5456 | timeout. | |
5457 | ||
5458 | 13. Installed revised OS/Makefile-CYGWIN and OS/os.c-cygwin (the .h file was | |
5459 | unchanged) from the Cygwin maintainer. | |
5460 | ||
5461 | 14. The code for -bV that shows what is in the binary showed "mbx" when maildir | |
5462 | was supported instead of testing for mbx. Effectively a typo. | |
5463 | ||
5464 | 15. The spa authenticator server code was not checking that the input it | |
5465 | received was valid base64. | |
5466 | ||
5467 | 16. The debug output line for the "set" modifier in ACLs was not showing the | |
5468 | name of the variable that was being set. | |
5469 | ||
5470 | 17. Code tidy: the variable type "vtype_string" was never used. Removed it. | |
5471 | ||
5472 | 18. Previously, a reference to $sender_host_name did not cause a DNS reverse | |
5473 | lookup on its own. Something else was needed to trigger the lookup. For | |
5474 | example, a match in host_lookup or the need for a host name in a host list. | |
5475 | Now, if $sender_host_name is referenced and the host name has not yet been | |
5476 | looked up, a lookup is performed. If the lookup fails, the variable remains | |
5477 | empty, and $host_lookup_failed is set to "1". | |
5478 | ||
5479 | 19. Added "eqi" as a case-independent comparison operator. | |
5480 | ||
5481 | 20. The saslauthd authentication condition could segfault if neither service | |
5482 | nor realm was specified. | |
5483 | ||
5484 | 21. If an overflowing value such as "2048M" was set for message_size_limit, the | |
5485 | error message that was logged was misleading, and incoming SMTP | |
5486 | connections were dropped. The message is now more accurate, and temporary | |
5487 | errors are given to SMTP connections. | |
5488 | ||
5489 | 22. In some error situations (such as 21 above) Exim rejects all SMTP commands | |
5490 | (except RSET) with a 421 error, until QUIT is received. However, it was | |
5491 | failing to send a response to QUIT. | |
5492 | ||
5493 | 23. The HELO ACL was being run before the code for helo_try_verify_hosts, | |
5494 | which made it impossible to use "verify = helo" in the HELO ACL. The HELO | |
5495 | ACL is now run after the helo_try_verify_hosts code. | |
5496 | ||
5497 | 24. "{MD5}" and "{SHA1}" are now recognized as equivalent to "{md5"} and | |
5498 | "{sha1}" in the "crypteq" expansion condition (in fact the comparison is | |
5499 | case-independent, so other case variants are also recognized). Apparently | |
5500 | some systems use these upper case variants. | |
5501 | ||
5502 | 25. If more than two messages were waiting for the same host, and a transport | |
5503 | filter was specified for the transport, Exim sent two messages over the | |
5504 | same TCP/IP connection, and then failed with "socket operation on non- | |
5505 | socket" when it tried to send the third. | |
5506 | ||
5507 | 26. Added Exim::debug_write and Exim::log_write for embedded Perl use. | |
5508 | ||
5509 | 27. The extern definition of crypt16() in expand.c was not being excluded when | |
5510 | the OS had its own crypt16() function. | |
5511 | ||
5512 | 28. Added bounce_return_body as a new option, and bounce_return_size_limit | |
5513 | as a preferred synonym for return_size_limit, both as an option and as an | |
5514 | expansion variable. | |
5515 | ||
5516 | 29. Added LIBS=-liconv to OS/Makefile-OSF1. | |
5517 | ||
5518 | 30. Changed the default configuration ACL to relax the local part checking rule | |
5519 | for addresses that are not in any local domains. For these addresses, | |
5520 | slashes and pipe symbols are allowed within local parts, but the sequence | |
5521 | /../ is explicitly forbidden. | |
5522 | ||
5523 | 31. SPA server authentication was not clearing the challenge buffer before | |
5524 | using it. | |
5525 | ||
5526 | 32. log_message in a "warn" ACL statement was writing to the reject log as | |
5527 | well as to the main log, which contradicts the documentation and doesn't | |
5528 | seem right (because no rejection is happening). So I have stopped it. | |
5529 | ||
5530 | 33. Added Ard Biesheuvel's lookup code for accessing an Interbase database. | |
5531 | However, I am unable to do any testing of this. | |
5532 | ||
5533 | 34. Fixed an infelicity in the appendfile transport. When checking directories | |
5534 | for a mailbox, to see if any needed to be created, it was accidentally | |
5535 | using path names with one or more superfluous leading slashes; tracing | |
5536 | would show up entries such as stat("///home/ph10", 0xFFBEEA48). | |
5537 | ||
5538 | 35. If log_message is set on a "discard" verb in a MAIL or RCPT ACL, its | |
5539 | contents are added to the log line that is written for every discarded | |
5540 | recipient. (Previously a log_message setting was ignored.) | |
5541 | ||
5542 | 36. The ${quote: operator now quotes the string if it is empty. | |
5543 | ||
5544 | 37. The install script runs exim in order to find its version number. If for | |
5545 | some reason other than non-existence or emptiness, which it checks, it | |
5546 | could not run './exim', it was installing it with an empty version number, | |
5547 | i.e. as "exim-". This error state is now caught, and the installation is | |
5548 | aborted. | |
5549 | ||
5550 | 38. An argument was missing from the function that creates an error message | |
5551 | when Exim fails to connect to the socket for saslauthd authentication. | |
5552 | This could cause Exim to crash, or give a corrupted message. | |
5553 | ||
5554 | 39. Added isip, isip4, and isip6 to ${if conditions. | |
5555 | ||
5556 | 40. The ACL variables $acl_xx are now saved with the message, and can be | |
5557 | accessed later in routers, transports, and filters. | |
5558 | ||
5559 | 41. The new lookup type nwildlsearch is like wildlsearch, except that the key | |
5560 | strings in the file are not string-expanded. | |
5561 | ||
5562 | 42. If a MAIL command specified a SIZE value that was too large to fit into an | |
5563 | int variable, the check against message_size_limit failed. Such values are | |
5564 | now forced to INT_MAX, which is around 2Gb for a 32-bit variable. Maybe one | |
5565 | day this will have to be increased, but I don't think I want to be around | |
5566 | when emails are that large. | |
5567 | ||
5568 | ||
5569 | ||
5570 | Exim version 4.22 | |
5571 | ----------------- | |
5572 | ||
5573 | 1. Removed HAVE_ICONV=yes from OS/Makefile-FreeBSD, since it seems that | |
5574 | iconv() is not standard in FreeBSD. | |
5575 | ||
5576 | 2. Change 4.21/17 was buggy and could cause stack overwriting on a system with | |
5577 | IPv6 enabled. The observed symptom was a segmentation fault on return from | |
5578 | the function os_common_find_running_interfaces() in src/os.c. | |
5579 | ||
5580 | 3. In the check_special_case() function in daemon.c I had used "errno" as an | |
5581 | argument name, which causes warnings on some systems. This was basically a | |
5582 | typo, since it was named "eno" in the comments! | |
5583 | ||
5584 | 4. The code that waits for the clock to tick (at a resolution of some fraction | |
5585 | of a second) so as to ensure message-id uniqueness was always waiting for | |
5586 | at least one whole tick, when it could have waited for less. [This is | |
5587 | almost certainly not relevant at current processor speeds, where it is | |
5588 | unlikely to ever wait at all. But we try to future-proof.] | |
5589 | ||
5590 | 5. The function that sleeps for a time interval that includes fractions of a | |
5591 | second contained a race. It did not block SIGALRM between setting the | |
5592 | timer, and suspending (a couple of lines later). If the interval was short | |
5593 | and the sigsuspend() was delayed until after it had expired, the suspension | |
5594 | never ended. On busy systems this could lead to processes getting stuck for | |
5595 | ever. | |
5596 | ||
5597 | 6. Some uncommon configurations may cause a lookup to happen in a queue runner | |
5598 | process, before it forks any delivery processes. The open lookup caching | |
5599 | mechanism meant that the open file or database connection was passed into | |
5600 | the delivery process. The problem was that delivery processes always tidy | |
5601 | up cached lookup data. This could cause a problem for the next delivery | |
5602 | process started by the queue runner, because the external queue runner | |
5603 | process does not know about the closure. So the next delivery process | |
5604 | still has data in the lookup cache. In the case of a file lookup, there was | |
5605 | no problem because closing a file descriptor in a subprocess doesn't affect | |
5606 | the parent. However, if the lookup was caching a connection to a database, | |
5607 | the connection was closed, and the second delivery process was likely to | |
5608 | see errors such as "PGSQL: query failed: server closed the connection | |
5609 | unexpectedly". The problem has been fixed by closing all cached lookups | |
5610 | in a queue runner before running a delivery process. | |
5611 | ||
5612 | 7. Compiler warning on Linux for the second argument of iconv(), which doesn't | |
5613 | seem to have the "const" qualifier which it has on other OS. I've | |
5614 | parameterised it. | |
5615 | ||
5616 | 8. Change 4.21/2 was too strict. It is only if there are two authenticators | |
5617 | *of the same type* (client or server) with the same public name that an | |
5618 | error should be diagnosed. | |
5619 | ||
5620 | 9. When Exim looked up a host name for an IP address, but failed to find the | |
5621 | original IP address when looking up the host name (a safety check), it | |
5622 | output the message "<ip address> does not match any IP for NULL", which was | |
5623 | confusing, to say the least. The bug was that the host name should have | |
5624 | appeared instead of "NULL". | |
5625 | ||
5626 | 10. Since release 3.03, if Exim is called by a uid other than root or the Exim | |
5627 | user that is built into the binary, and the -C or -D options is used, root | |
5628 | privilege is dropped before the configuration file is read. In addition, | |
5629 | logging is switched to stderr instead of the normal log files. If the | |
5630 | configuration then re-defines the Exim user, the unprivileged environment | |
5631 | is probably not what is expected, so Exim logs a panic warning message (but | |
5632 | proceeds). | |
5633 | ||
5634 | However, if deliver_drop_privilege is set, the unprivileged state may well | |
5635 | be exactly what is intended, so the warning has been cut out in that case, | |
5636 | and Exim is allowed to try to write to its normal log files. | |
5637 | ||
5638 | ||
5639 | Exim version 4.21 | |
5640 | ----------------- | |
5641 | ||
5642 | 1. smtp_return_error_details was not giving details for temporary sender | |
5643 | or receiver verification errors. | |
5644 | ||
5645 | 2. Diagnose a configuration error if two authenticators have the same public | |
5646 | name. | |
5647 | ||
5648 | 3. Exim used not to create the message log file for a message until the first | |
5649 | delivery attempt. This could be confusing when incoming messages were held | |
5650 | for policy or load reasons. The message log file is now created at the time | |
5651 | the message is received, and an initial "Received" line is written to it. | |
5652 | ||
5653 | 4. The automatically generated man page for command line options had a minor | |
5654 | bug that caused no ill effects; however, a more serious problem was that | |
5655 | the procedure for building the man page automatically didn't always | |
5656 | operate. Consequently, release 4.20 contains an out-of-date version. This | |
5657 | shouldn't happen again. | |
5658 | ||
5659 | 5. When building Exim with embedded Perl support, the script that builds the | |
5660 | Makefile was calling 'perl' to find its compile-time parameters, ignoring | |
5661 | any setting of PERL_COMMAND in Local/Makefile. This is now fixed. | |
5662 | ||
5663 | 6. The freeze_tell option was not being used for messages that were frozen on | |
5664 | arrival, either by an ACL or by local_scan(). | |
5665 | ||
5666 | 7. Added the smtp_incomplete_transaction log selector. | |
5667 | ||
5668 | 8. After STARTTLS, Exim was not forgetting that it had advertised AUTH, so it | |
5669 | was accepting AUTH without a new EHLO. | |
5670 | ||
5671 | 9. Added tls_remember_esmtp to cope with YAEB. This allows AUTH and other | |
5672 | ESMTP extensions after STARTTLS without a new EHLO, in contravention of the | |
5673 | RFC. | |
5674 | ||
5675 | 10. Logging of TCP/IP connections (when configured) now happens in the main | |
5676 | daemon process instead of the child process, so that the TCP/IP connection | |
5677 | count is more accurate (but it can never be perfect). | |
5678 | ||
5679 | 11. The use of "drop" in a nested ACL was not being handled correctly in the | |
5680 | outer ACL. Now, if condition failure induced by the nested "drop" causes | |
5681 | the outer ACL verb to deny access ("accept" or "discard" after "endpass", | |
5682 | or "require"), the connection is dropped. | |
5683 | ||
5684 | 12. Similarly, "discard" in a nested ACL wasn't being handled. A nested ACL | |
5685 | that yield "discard" can now be used with an "accept" or a "discard" verb, | |
5686 | but an error is generated for any others (because I can't see a useful way | |
5687 | to define what should happen). | |
5688 | ||
5689 | 13. When an ACL is read dynamically from a file (or anywhere else), the lines | |
5690 | are now processed in the same way as lines in the Exim configuration file. | |
5691 | In particular, continuation lines are supported. | |
5692 | ||
5693 | 14. Added the "dnslists = a.b.c!=n.n.n.n" feature. | |
5694 | ||
5695 | 15. Added -ti meaning -t -i. | |
5696 | ||
5697 | 16. Check for letters, digits, hyphens, and dots in the names of dnslist | |
5698 | domains, and warn by logging if others are found. | |
5699 | ||
5700 | 17. At least on BSD, alignment is not guarenteed for the array of ifreq's | |
5701 | returned from GIFCONF when Exim is trying to find the list of interfaces on | |
5702 | a host. The code in os.c has been modified to copy each ifreq to an aligned | |
5703 | structure in all cases. | |
5704 | ||
5705 | Also, in some cases, the returned ifreq's were being copied to a 'struct | |
5706 | ifreq' on the stack, which was subsequently passed to host_ntoa(). That | |
5707 | means the last couple of bytes of an IPv6 address could be chopped if the | |
5708 | ifreq contained only a normal sockaddr (14 bytes storage). | |
5709 | ||
5710 | 18. Named domain lists were not supported in the hosts_treat_as_local option. | |
5711 | An entry such as +xxxx was not recognized, and was treated as a literal | |
5712 | domain name. | |
5713 | ||
5714 | 19. Ensure that header lines added by a DATA ACL are included in the reject log | |
5715 | if the ACL subsequently rejects the message. | |
5716 | ||
5717 | 20. Upgrade the cramtest.pl utility script to use Digest::MD5 instead of just | |
5718 | MD5 (which is deprecated). | |
5719 | ||
5720 | 21. When testing a filter file using -bf, Exim was writing a message when it | |
5721 | took the sender from a "From " line in the message, but it was not doing so | |
5722 | when it took $return_path from a Return-Path: header line. It now does. | |
5723 | ||
5724 | 22. If the contents of a "message" modifier for a "warn" ACL verb do not begin | |
5725 | with a valid header line field name (a series of printing characters | |
5726 | terminated by a colon, Exim now inserts X-ACL-Warn: at the beginning. | |
5727 | ||
5728 | 23. Changed "disc" in the source to "disk" to conform to the documentation and | |
5729 | the book and for uniformity. | |
5730 | ||
5731 | 24. Ignore Sendmail's -Ooption=value command line item. | |
5732 | ||
5733 | 25. When execve() failed while trying to run a command in a pipe transport, | |
5734 | Exim was returning EX_UNAVAILBLE (69) from the subprocess. However, this | |
5735 | could be confused with a return value of 69 from the command itself. This | |
5736 | has been changed to 127, the value the shell returns if it is asked to run | |
5737 | a non-existent command. The wording for the related log line suggests a | |
5738 | non-existent command as the problem. | |
5739 | ||
5740 | 26. If received_header_text expands to an empty string, do not add a Received: | |
5741 | header line to the message. (Well, it adds a token one on the spool, but | |
5742 | marks it "old" so that it doesn't get used or transmitted.) | |
5743 | ||
5744 | 27. Installed eximstats 1.28 (addition of -nt option). | |
5745 | ||
5746 | 28. There was no check for failure on the call to getsockname() in the daemon | |
5747 | code. This can fail if there is a shortage of resources on the system, with | |
5748 | ENOMEM, for example. A temporary error is now given on failure. | |
5749 | ||
5750 | 29. Contrary to the C standard, it seems that in some environments, the | |
5751 | equivalent of setlocale(LC_ALL, "C") is not obeyed at the start of a C | |
5752 | program. Exim now does this explicitly; it affects the formatting of | |
5753 | timestamps using strftime(). | |
5754 | ||
5755 | 30. If exiqsumm was given junk data, it threw up some uninitialized variable | |
5756 | complaints. I've now initialized all the variables, to avoid this. | |
5757 | ||
5758 | 32. Header lines added by a system filter were not being "seen" during | |
5759 | transport-time rewrites. | |
5760 | ||
5761 | 33. The info_callback() function passed to OpenSSL is set up with type void | |
5762 | (*)(SSL *, int, int), as described somewhere. However, when calling the | |
5763 | function (actually a macro) that sets it up, the type void(*)() is | |
5764 | expected. I've put in a cast to prevent warnings from picky compilers. | |
5765 | ||
5766 | 34. If a DNS black list lookup found a CNAME record, but there were no A | |
5767 | records associated with the domain it pointed at, Exim crashed. | |
5768 | ||
5769 | 35. If a DNS black list lookup returned more than one A record, Exim ignored | |
5770 | all but the first. It now scans all returned addresses if a particular IP | |
5771 | value is being sought. In this situation, the contents of the | |
5772 | $dnslist_value variable are a list of all the addresses, separated by a | |
5773 | comma and a space. | |
5774 | ||
5775 | 36. Tightened up the rules for host name lookups using reverse DNS. Exim used | |
5776 | to accept a host name and all its aliases if the forward lookup for any of | |
5777 | them yielded the IP address of the incoming connection. Now it accepts only | |
5778 | those names whose forward lookup yields the correct IP address. Any other | |
5779 | names are discarded. This closes a loophole whereby a rogue DNS | |
5780 | administrator could create reverse DNS records to break through a | |
5781 | wildcarded host restriction in an ACL. | |
5782 | ||
5783 | 37. If a user filter or a system filter that ran in a subprocess used any of | |
5784 | the numerical variables ($1, $2 etc), or $thisaddress, in a pipe command, | |
5785 | the wrong values were passed to the pipe command ($thisaddress had the | |
5786 | value of $0, $0 had the value of $1, etc). This bug was introduced by | |
5787 | change 4.11/101, and not discovered because I wrote an inadequate test. :-( | |
5788 | ||
5789 | 38. Improved the line breaking for long SMTP error messages from ACLs. | |
5790 | Previously, if there was no break point between 40 and 75 characters, Exim | |
5791 | left the rest of the message alone. Two changes have been made: (a) I've | |
5792 | reduced the minimum length to 35 characters; (b) if it can't find a break | |
5793 | point between 35 and 75 characters, it looks ahead and uses the first one | |
5794 | that it finds. This may give the occasional overlong line, but at least the | |
5795 | remaining text gets split now. | |
5796 | ||
5797 | 39. Change 82 of 4.11 was unimaginative. It assumed the limit on the number of | |
5798 | file descriptors might be low, and that setting 1000 would always raise it. | |
5799 | It turns out that in some environments, the limit is already over 1000 and | |
5800 | that lowering it causes trouble. So now Exim takes care not to decrease it. | |
5801 | ||
5802 | 40. When delivering a message, the value of $return_path is set to $sender_ | |
5803 | address at the start of routing (routers may change the value). By an | |
5804 | oversight, this default was not being set up when an address was tested by | |
5805 | -bt or -bv, which affected the outcome if any router or filter referred to | |
5806 | $return_path. | |
5807 | ||
5808 | 41. The idea of the "warn" ACL verb is that it adds a header or writes to the | |
5809 | log only when "message" or "log_message" are set. However, if one of the | |
5810 | conditions was an address verification, or a call to a nested ACL, the | |
5811 | messages generated by the underlying test were being passed through. This | |
5812 | no longer happens. The underlying message is available in $acl_verify_ | |
5813 | message for both "message" and "log_message" expansions, so it can be | |
5814 | passed through if needed. | |
5815 | ||
5816 | 42. Added RFC 2047 interpretation of header lines for $h_ expansions, with a | |
5817 | new expansion $bh_ to give the encoded byte string without charset | |
5818 | translation. Translation happens only if iconv() is available; HAVE_ICONV | |
5819 | indicates this at build time. HEADERS_CHARSET gives the charset to | |
5820 | translate to; headers_charset can change it in the configuration, and | |
5821 | "headers charset" can change it in an individual filter file. | |
5822 | ||
5823 | 43. Now that we have a default RFC 2047 charset (see above), the code in Exim | |
5824 | that creates RFC 2047 encoded "words" labels them as that charset instead | |
5825 | of always using iso-8859-1. The cases are (i) the explicit ${rfc2047: | |
5826 | expansion operator; (ii) when Exim creates a From: line for a local | |
5827 | message; (iii) when a header line is rewritten to include a "phrase" part. | |
5828 | ||
5829 | 44. Nasty bug in exiqsumm: the regex to skip already-delivered addresses was | |
5830 | buggy, causing it to skip the first lines of messages whose message ID | |
5831 | ended in 'D'. This would not have bitten before Exim release 4.14, because | |
5832 | message IDs were unlikely to end in 'D' before then. The effect was to have | |
5833 | incorrect size information for certain domains. | |
5834 | ||
5835 | 45. #include "config.h" was missing at the start of the crypt16.c module. This | |
5836 | caused trouble on Tru64 (aka OSF1) systems, because HAVE_CRYPT16 was not | |
5837 | noticed. | |
5838 | ||
5839 | 46. If there was a timeout during a "random" callout check, Exim treated it as | |
5840 | a failure of the random address, and carried on sending RSET and the real | |
5841 | address. If the delay was just some slowness somewhere, the response to the | |
5842 | original RCPT would be taken as a response to RSET and so on, causing | |
5843 | mayhem of various kinds. | |
5844 | ||
5845 | 47. Change 50 for 4.20 was a heap of junk. I don't know what I was thinking | |
5846 | when I implemented it. It didn't allow for the fact that some option values | |
5847 | may legitimatetly be negative (e.g. size_addition), and it didn't even do | |
5848 | the right test for positive values. | |
5849 | ||
5850 | 48. Domain names in DNS records are case-independent. Exim always looks them up | |
5851 | in lower case. Some resolvers return domain names in exactly the case they | |
5852 | appear in the zone file, that is, they may contain uppercase letters. Not | |
5853 | all resolvers do this - some return always lower case. Exim was treating a | |
5854 | change of case by a resolver as a change of domain, similar to a widening | |
5855 | of a domain abbreviation. This triggered its re-routing code and so it was | |
5856 | trying to route what was effectively the same domain again. This normally | |
5857 | caused routing to fail (because the router wouldn't handle the domain | |
5858 | twice). Now Exim checks for this case specially, and just changes the | |
5859 | casing of the domain that it ultimately uses when it transmits the message | |
5860 | envelope. | |
5861 | ||
5862 | 49. Added Sieve (RFC 3028) support, courtesy of Michael Haardt's contributed | |
5863 | module. | |
5864 | ||
5865 | 50. If a filter generated a file delivery with a non-absolute name (possible if | |
5866 | no home directory exists for the router), the forbid_file option was not | |
5867 | forbidding it. | |
5868 | ||
5869 | 51. Added '&' feature to dnslists, to provide bit mask matching in addition to | |
5870 | the existing equality matching. | |
5871 | ||
5872 | 52. Exim was using ints instead of ino_t variables in some places where it was | |
5873 | dealing with inode numbers. | |
5874 | ||
5875 | 53. If TMPDIR is defined in Local/Makefile (default in src/EDITME is | |
5876 | TMPDIR="/tmp"), Exim checks for the presence of an environment variable | |
5877 | called TMPDIR, and if it finds it is different, it changes its value. | |
5878 | ||
5879 | 54. The smtp_printf() function is now made available to local_scan() so | |
5880 | additional output lines can be written before returning. There is also an | |
5881 | smtp_fflush() function to enable the detection of a dropped connection. | |
5882 | The variables smtp_input and smtp_batched_input are exported to | |
5883 | local_scan(). | |
5884 | ||
5885 | 55. Changed the default runtime configuration: the message "Unknown user" | |
5886 | has been removed from the ACL, and instead placed on the localuser router, | |
5887 | using the cannot_route_message feature. This means that any verification | |
5888 | failures that generate their own messages won't get overridden. Similarly, | |
5889 | the "Unrouteable address" message that was in the ACL for unverifiable | |
5890 | relay addresses has also been removed. | |
5891 | ||
5892 | 56. Added hosts_avoid_esmtp to the smtp transport. | |
5893 | ||
5894 | 57. The exicyclog script was not checking for the esoteric option | |
5895 | CONFIGURE_FILE_USE_EUID in the Local/Makefile. It now does this, but it | |
5896 | will work only if exicyclog is run under the appropriate euid. | |
5897 | ||
5898 | 58. Following a discussion on the list, the rules by which Exim recognises line | |
5899 | endings on incoming messages have been changed. The -dropcr and drop_cr | |
5900 | options are now no-ops, retained only for backwards compatibility. The | |
5901 | following line terminators are recognized: LF CRLF CR. However, special | |
5902 | processing applies to CR: | |
5903 | ||
5904 | (i) The sequence CR . CR does *not* terminate an incoming SMTP message, | |
5905 | nor a local message in the state where . is a terminator. | |
5906 | ||
5907 | (ii) If a bare CR is encountered in a header line, an extra space is added | |
5908 | after the line terminator so as not to end the header. The reasoning | |
5909 | behind this is that bare CRs in header lines are most likely either | |
5910 | to be mistakes, or people trying to play silly games. | |
5911 | ||
5912 | 59. The size of a message, as listed by "-bp" or in the Exim monitor window, | |
5913 | was being incorrectly given as 18 bytes larger than it should have been. | |
5914 | This is a VOB (very old bug). | |
5915 | ||
5916 | 60. This may never have affected anything current, but just in case it has: | |
5917 | When the local host is found other than at the start of a list of hosts, | |
5918 | the local host, those with the same MX, and any that follow, are discarded. | |
5919 | When the list in question was part of a longer list of hosts, the following | |
5920 | hosts (not currently being processed) were also being discarded. This no | |
5921 | longer happens. I'm not sure if this situation could ever has previously | |
5922 | arisen. | |
5923 | ||
5924 | 61. Added the "/MX" feature to lists of hosts in the manualroute and query | |
5925 | program routers. | |
5926 | ||
5927 | 62. Whenever Exim generates a new message, it now adds an Auto-Submitted: | |
5928 | header. This is something that is recommended in a new Internet Draft, and | |
5929 | is something that is documented as being done by Sendmail. There are two | |
5930 | possible values. For messages generated by the autoreply transport, Exim | |
5931 | adds: | |
5932 | ||
5933 | Auto-Submitted: auto-replied | |
5934 | ||
5935 | whereas for all other generated messages (e.g. bounces) it adds | |
5936 | ||
5937 | Auto-Submitted: auto-generated | |
5938 | ||
5939 | 63. The "personal" condition in filters now includes a test for the | |
5940 | Auto-Submitted: header. If it contains the string "auto-" the message it | |
5941 | not considered personal. | |
5942 | ||
5943 | 64. Added rcpt_include_affixes as a generic transport option. | |
5944 | ||
5945 | 65. Added queue_only_override (default true). | |
5946 | ||
5947 | 66. Added the syslog_duplication option. | |
5948 | ||
5949 | 67. If what should have been the first header line of a message consisted of | |
5950 | a space followed by a colon, Exim was mis-interpreting it as a header line. | |
5951 | It isn't of course - it is syntactically invalid and should therefore be | |
5952 | treated as the start of the message body. The misbehaviour could have | |
5953 | caused a number of strange effects, including loss of data in subsequent | |
5954 | header lines, and spool format errors. | |
5955 | ||
5956 | 68. Formerly, the AUTH parameter on a MAIL command was trusted only if the | |
5957 | client host had authenticated. This control can now be exercised by an ACL | |
5958 | for more flexibility. | |
5959 | ||
5960 | 69. By default, callouts do not happen when testing with -bh. There is now a | |
5961 | variant, -bhc, which does actually run the callout code, including | |
5962 | consulting and updating the callout cache. | |
5963 | ||
5964 | 70. Added support for saslauthd authentication, courtesy of Alexander | |
5965 | Sabourenkov. | |
5966 | ||
5967 | 71. If statvfs() failed on the spool or log directories while checking their | |
5968 | size for availability, Exim confusingly gave the error "space shortage". | |
5969 | Furthermore, in debugging mode it crashed with a floating point exception. | |
5970 | These checks are done if check_{spool,log}_{space,inodes} are set, and when | |
5971 | an SMTP message arrives with SIZE= on the MAIL command. As this is a really | |
5972 | serious problem, Exim now writes to the main and panic logs when this | |
5973 | happens, with details of the failure. It then refuses to accept the | |
5974 | incoming message, giving the message "spool directory problem" or "log | |
5975 | directory problem" with a 421 code for SMTP messages. | |
5976 | ||
5977 | 72. When Exim is about to re-exec itself, it ensures that the file descriptors | |
5978 | 0, 1, and 2 exist, because some OS complain for execs without them (see | |
5979 | ChangeLog 4.05/30). If necessary, Exim opens /dev/null to use for these | |
5980 | descriptors. However, the code omitted to check that the open succeeded, | |
5981 | causing mysterious errors if for some reason the permissions on /dev/null | |
5982 | got screwed. Now Exim writes a message to the main and panic logs, and | |
5983 | bombs out if it can't open /dev/null. | |
5984 | ||
5985 | 73. Re-vamped the way daemon_smtp_port, local_interfaces, and -oX work and | |
5986 | interact so that it is all more flexible. It is supposed to remain | |
5987 | backwards compatible. Also added extra_local_interfaces. | |
5988 | ||
5989 | 74. Invalid data sent to a SPA (NTLM) server authenticator could cause the code | |
5990 | to bomb out with an assertion failure - to the client this appears as a | |
5991 | connection drop. This problem occurs in the part of the code that was taken | |
5992 | from the Samba project. Fortunately, the assertion is in a very simple | |
5993 | function, so I have fixed this by reproducing the function inline in the | |
5994 | one place where it is called, and arranging for authentication to fail | |
5995 | instead of killing the process with assert(). | |
5996 | ||
5997 | 75. The SPA client code was not working when the server requested OEM rather | |
5998 | than Unicode encoding. | |
5999 | ||
6000 | 76. Added code to make require_files with a specific uid setting more usable in | |
6001 | the case where statting the file as root fails - usually a non-root-mounted | |
6002 | NFS file system. When this happens and the failure is EACCES, Exim now | |
6003 | forks a subprocess and does the per-uid checking as the relevant uid. | |
6004 | ||
6005 | 77. Added process_log_path. | |
6006 | ||
6007 | 78. If log_file_path was not explicitly set, a setting of check_log_space or | |
6008 | check_log_inodes was ignored. | |
6009 | ||
6010 | 79. If a space check for the spool or log partitions fails, the incident is now | |
6011 | logged. Of course, in the latter case the data may get lost... | |
6012 | ||
6013 | 80. Added the %p formatting code to string_format() so that it can be used to | |
6014 | print addresses in debug_print(). Adjusted all the address printing in the | |
6015 | debugging in store.c to use %p rather than %d. | |
6016 | ||
6017 | 81. There was a concern that a line of code in smtp_in.c could overflow a | |
6018 | buffer if a HELO/EHLO command was given followed by 500 or so spaces. As | |
6019 | initially expressed, the concern was not well-founded, because trailing | |
6020 | spaces are removed early. However, if the trailing spaces were followed by | |
6021 | a NULL, they did not get removed, so the overflow was possible. Two fixes | |
6022 | were applied: | |
6023 | ||
6024 | (a) I re-wrote the offending code in a cleaner fashion. | |
6025 | (b) If an incoming SMTP command contains a NULL character, it is rejected | |
6026 | as invalid. | |
6027 | ||
6028 | 82. When Exim changes uid/gid to the Exim user at daemon start time, it now | |
6029 | runs initgroups(), so that if the Exim user is in any additional groups, | |
6030 | they will be used during message reception. | |
6031 | ||
6032 | ||
6033 | Exim version 4.20 | |
6034 | ----------------- | |
6035 | ||
6036 | The change log for 4.20 and earlier releases has been archived. | |
6037 | ||
6038 | **** |