Commit | Line | Data |
---|---|---|
059ec3d9 PH |
1 | /************************************************* |
2 | * Exim - an Internet mail transport agent * | |
3 | *************************************************/ | |
4 | ||
c4ceed07 | 5 | /* Copyright (c) University of Cambridge 1995 - 2012 */ |
059ec3d9 PH |
6 | /* See the file NOTICE for conditions of use and distribution. */ |
7 | ||
8 | /* Functions for reading the configuration file, and for displaying | |
9 | overall configuration values. Thanks to Brian Candler for the original | |
10 | implementation of the conditional .ifdef etc. */ | |
11 | ||
12 | #include "exim.h" | |
13 | ||
14 | #define CSTATE_STACK_SIZE 10 | |
15 | ||
16 | ||
17 | /* Structure for chain (stack) of .included files */ | |
18 | ||
19 | typedef struct config_file_item { | |
20 | struct config_file_item *next; | |
21 | uschar *filename; | |
22 | FILE *file; | |
23 | int lineno; | |
24 | } config_file_item; | |
25 | ||
26 | /* Structure of table of conditional words and their state transitions */ | |
27 | ||
28 | typedef struct cond_item { | |
29 | uschar *name; | |
30 | int namelen; | |
31 | int action1; | |
32 | int action2; | |
33 | int pushpop; | |
34 | } cond_item; | |
35 | ||
36 | /* Structure of table of syslog facility names and values */ | |
37 | ||
38 | typedef struct syslog_fac_item { | |
39 | uschar *name; | |
40 | int value; | |
41 | } syslog_fac_item; | |
42 | ||
43 | ||
44 | /* Static variables */ | |
45 | ||
46 | static config_file_item *config_file_stack = NULL; /* For includes */ | |
47 | ||
48 | static uschar *syslog_facility_str = NULL; | |
49 | static uschar next_section[24]; | |
50 | static uschar time_buffer[24]; | |
51 | ||
52 | /* State variables for conditional loading (.ifdef / .else / .endif) */ | |
53 | ||
54 | static int cstate = 0; | |
55 | static int cstate_stack_ptr = -1; | |
56 | static int cstate_stack[CSTATE_STACK_SIZE]; | |
57 | ||
58 | /* Table of state transitions for handling conditional inclusions. There are | |
59 | four possible state transitions: | |
60 | ||
61 | .ifdef true | |
62 | .ifdef false | |
63 | .elifdef true (or .else) | |
64 | .elifdef false | |
65 | ||
66 | .endif just causes the previous cstate to be popped off the stack */ | |
67 | ||
68 | static int next_cstate[3][4] = | |
69 | { | |
70 | /* State 0: reading from file, or reading until next .else or .endif */ | |
71 | { 0, 1, 2, 2 }, | |
72 | /* State 1: condition failed, skipping until next .else or .endif */ | |
73 | { 2, 2, 0, 1 }, | |
74 | /* State 2: skipping until .endif */ | |
75 | { 2, 2, 2, 2 }, | |
76 | }; | |
77 | ||
78 | /* Table of conditionals and the states to set. For each name, there are four | |
79 | values: the length of the name (to save computing it each time), the state to | |
80 | set if a macro was found in the line, the state to set if a macro was not found | |
81 | in the line, and a stack manipulation setting which is: | |
82 | ||
83 | -1 pull state value off the stack | |
84 | 0 don't alter the stack | |
85 | +1 push value onto stack, before setting new state | |
86 | */ | |
87 | ||
88 | static cond_item cond_list[] = { | |
89 | { US"ifdef", 5, 0, 1, 1 }, | |
90 | { US"ifndef", 6, 1, 0, 1 }, | |
91 | { US"elifdef", 7, 2, 3, 0 }, | |
92 | { US"elifndef", 8, 3, 2, 0 }, | |
93 | { US"else", 4, 2, 2, 0 }, | |
94 | { US"endif", 5, 0, 0, -1 } | |
95 | }; | |
96 | ||
97 | static int cond_list_size = sizeof(cond_list)/sizeof(cond_item); | |
98 | ||
99 | /* Table of syslog facility names and their values */ | |
100 | ||
101 | static syslog_fac_item syslog_list[] = { | |
102 | { US"mail", LOG_MAIL }, | |
103 | { US"user", LOG_USER }, | |
104 | { US"news", LOG_NEWS }, | |
105 | { US"uucp", LOG_UUCP }, | |
106 | { US"local0", LOG_LOCAL0 }, | |
107 | { US"local1", LOG_LOCAL1 }, | |
108 | { US"local2", LOG_LOCAL2 }, | |
109 | { US"local3", LOG_LOCAL3 }, | |
110 | { US"local4", LOG_LOCAL4 }, | |
111 | { US"local5", LOG_LOCAL5 }, | |
112 | { US"local6", LOG_LOCAL6 }, | |
113 | { US"local7", LOG_LOCAL7 }, | |
114 | { US"daemon", LOG_DAEMON } | |
115 | }; | |
116 | ||
117 | static int syslog_list_size = sizeof(syslog_list)/sizeof(syslog_fac_item); | |
118 | ||
119 | ||
120 | ||
121 | ||
122 | /************************************************* | |
123 | * Main configuration options * | |
124 | *************************************************/ | |
125 | ||
126 | /* The list of options that can be set in the main configuration file. This | |
127 | must be in alphabetic order because it is searched by binary chop. */ | |
128 | ||
129 | static optionlist optionlist_config[] = { | |
130 | { "*set_exim_group", opt_bool|opt_hidden, &exim_gid_set }, | |
131 | { "*set_exim_user", opt_bool|opt_hidden, &exim_uid_set }, | |
132 | { "*set_system_filter_group", opt_bool|opt_hidden, &system_filter_gid_set }, | |
133 | { "*set_system_filter_user", opt_bool|opt_hidden, &system_filter_uid_set }, | |
134 | { "accept_8bitmime", opt_bool, &accept_8bitmime }, | |
135 | { "acl_not_smtp", opt_stringptr, &acl_not_smtp }, | |
54cdb463 PH |
136 | #ifdef WITH_CONTENT_SCAN |
137 | { "acl_not_smtp_mime", opt_stringptr, &acl_not_smtp_mime }, | |
138 | #endif | |
45b91596 | 139 | { "acl_not_smtp_start", opt_stringptr, &acl_not_smtp_start }, |
059ec3d9 PH |
140 | { "acl_smtp_auth", opt_stringptr, &acl_smtp_auth }, |
141 | { "acl_smtp_connect", opt_stringptr, &acl_smtp_connect }, | |
142 | { "acl_smtp_data", opt_stringptr, &acl_smtp_data }, | |
fd98a5c6 JH |
143 | #ifdef EXPERIMENTAL_PRDR |
144 | { "acl_smtp_data_prdr", opt_stringptr, &acl_smtp_data_prdr }, | |
145 | #endif | |
80a47a2c TK |
146 | #ifndef DISABLE_DKIM |
147 | { "acl_smtp_dkim", opt_stringptr, &acl_smtp_dkim }, | |
148 | #endif | |
059ec3d9 PH |
149 | { "acl_smtp_etrn", opt_stringptr, &acl_smtp_etrn }, |
150 | { "acl_smtp_expn", opt_stringptr, &acl_smtp_expn }, | |
151 | { "acl_smtp_helo", opt_stringptr, &acl_smtp_helo }, | |
152 | { "acl_smtp_mail", opt_stringptr, &acl_smtp_mail }, | |
153 | { "acl_smtp_mailauth", opt_stringptr, &acl_smtp_mailauth }, | |
8523533c TK |
154 | #ifdef WITH_CONTENT_SCAN |
155 | { "acl_smtp_mime", opt_stringptr, &acl_smtp_mime }, | |
156 | #endif | |
8f128379 | 157 | { "acl_smtp_notquit", opt_stringptr, &acl_smtp_notquit }, |
059ec3d9 PH |
158 | { "acl_smtp_predata", opt_stringptr, &acl_smtp_predata }, |
159 | { "acl_smtp_quit", opt_stringptr, &acl_smtp_quit }, | |
160 | { "acl_smtp_rcpt", opt_stringptr, &acl_smtp_rcpt }, | |
161 | #ifdef SUPPORT_TLS | |
162 | { "acl_smtp_starttls", opt_stringptr, &acl_smtp_starttls }, | |
163 | #endif | |
164 | { "acl_smtp_vrfy", opt_stringptr, &acl_smtp_vrfy }, | |
165 | { "admin_groups", opt_gidlist, &admin_groups }, | |
166 | { "allow_domain_literals", opt_bool, &allow_domain_literals }, | |
167 | { "allow_mx_to_ip", opt_bool, &allow_mx_to_ip }, | |
168 | { "allow_utf8_domains", opt_bool, &allow_utf8_domains }, | |
169 | { "auth_advertise_hosts", opt_stringptr, &auth_advertise_hosts }, | |
170 | { "auto_thaw", opt_time, &auto_thaw }, | |
8523533c TK |
171 | #ifdef WITH_CONTENT_SCAN |
172 | { "av_scanner", opt_stringptr, &av_scanner }, | |
173 | #endif | |
059ec3d9 | 174 | { "bi_command", opt_stringptr, &bi_command }, |
8523533c TK |
175 | #ifdef EXPERIMENTAL_BRIGHTMAIL |
176 | { "bmi_config_file", opt_stringptr, &bmi_config_file }, | |
177 | #endif | |
059ec3d9 PH |
178 | { "bounce_message_file", opt_stringptr, &bounce_message_file }, |
179 | { "bounce_message_text", opt_stringptr, &bounce_message_text }, | |
180 | { "bounce_return_body", opt_bool, &bounce_return_body }, | |
181 | { "bounce_return_message", opt_bool, &bounce_return_message }, | |
182 | { "bounce_return_size_limit", opt_mkint, &bounce_return_size_limit }, | |
183 | { "bounce_sender_authentication",opt_stringptr,&bounce_sender_authentication }, | |
184 | { "callout_domain_negative_expire", opt_time, &callout_cache_domain_negative_expire }, | |
185 | { "callout_domain_positive_expire", opt_time, &callout_cache_domain_positive_expire }, | |
186 | { "callout_negative_expire", opt_time, &callout_cache_negative_expire }, | |
187 | { "callout_positive_expire", opt_time, &callout_cache_positive_expire }, | |
188 | { "callout_random_local_part",opt_stringptr, &callout_random_local_part }, | |
189 | { "check_log_inodes", opt_int, &check_log_inodes }, | |
190 | { "check_log_space", opt_Kint, &check_log_space }, | |
a0d6ba8a | 191 | { "check_rfc2047_length", opt_bool, &check_rfc2047_length }, |
059ec3d9 PH |
192 | { "check_spool_inodes", opt_int, &check_spool_inodes }, |
193 | { "check_spool_space", opt_Kint, &check_spool_space }, | |
194 | { "daemon_smtp_port", opt_stringptr|opt_hidden, &daemon_smtp_port }, | |
195 | { "daemon_smtp_ports", opt_stringptr, &daemon_smtp_port }, | |
4aee0225 PH |
196 | { "daemon_startup_retries", opt_int, &daemon_startup_retries }, |
197 | { "daemon_startup_sleep", opt_time, &daemon_startup_sleep }, | |
6a8f9482 TK |
198 | #ifdef EXPERIMENTAL_DCC |
199 | { "dcc_direct_add_header", opt_bool, &dcc_direct_add_header }, | |
200 | { "dccifd_address", opt_stringptr, &dccifd_address }, | |
201 | { "dccifd_options", opt_stringptr, &dccifd_options }, | |
202 | #endif | |
059ec3d9 PH |
203 | { "delay_warning", opt_timelist, &delay_warning }, |
204 | { "delay_warning_condition", opt_stringptr, &delay_warning_condition }, | |
205 | { "deliver_drop_privilege", opt_bool, &deliver_drop_privilege }, | |
206 | { "deliver_queue_load_max", opt_fixed, &deliver_queue_load_max }, | |
207 | { "delivery_date_remove", opt_bool, &delivery_date_remove }, | |
54fc8428 PH |
208 | #ifdef ENABLE_DISABLE_FSYNC |
209 | { "disable_fsync", opt_bool, &disable_fsync }, | |
210 | #endif | |
7e66e54d | 211 | { "disable_ipv6", opt_bool, &disable_ipv6 }, |
80a47a2c TK |
212 | #ifndef DISABLE_DKIM |
213 | { "dkim_verify_signers", opt_stringptr, &dkim_verify_signers }, | |
214 | #endif | |
059ec3d9 PH |
215 | { "dns_again_means_nonexist", opt_stringptr, &dns_again_means_nonexist }, |
216 | { "dns_check_names_pattern", opt_stringptr, &check_dns_names_pattern }, | |
e5a9dba6 PH |
217 | { "dns_csa_search_limit", opt_int, &dns_csa_search_limit }, |
218 | { "dns_csa_use_reverse", opt_bool, &dns_csa_use_reverse }, | |
059ec3d9 PH |
219 | { "dns_ipv4_lookup", opt_stringptr, &dns_ipv4_lookup }, |
220 | { "dns_retrans", opt_time, &dns_retrans }, | |
221 | { "dns_retry", opt_int, &dns_retry }, | |
0fbd9bff | 222 | { "dns_dnssec_ok", opt_int, &dns_dnssec_ok }, |
e97d1f08 | 223 | { "dns_use_edns0", opt_int, &dns_use_edns0 }, |
059ec3d9 PH |
224 | /* This option is now a no-op, retained for compability */ |
225 | { "drop_cr", opt_bool, &drop_cr }, | |
226 | /*********************************************************/ | |
0e22dfd1 | 227 | { "dsn_from", opt_stringptr, &dsn_from }, |
059ec3d9 PH |
228 | { "envelope_to_remove", opt_bool, &envelope_to_remove }, |
229 | { "errors_copy", opt_stringptr, &errors_copy }, | |
230 | { "errors_reply_to", opt_stringptr, &errors_reply_to }, | |
231 | { "exim_group", opt_gid, &exim_gid }, | |
232 | { "exim_path", opt_stringptr, &exim_path }, | |
233 | { "exim_user", opt_uid, &exim_uid }, | |
234 | { "extra_local_interfaces", opt_stringptr, &extra_local_interfaces }, | |
235 | { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments }, | |
236 | { "finduser_retries", opt_int, &finduser_retries }, | |
237 | { "freeze_tell", opt_stringptr, &freeze_tell }, | |
238 | { "gecos_name", opt_stringptr, &gecos_name }, | |
239 | { "gecos_pattern", opt_stringptr, &gecos_pattern }, | |
83da1223 | 240 | #ifdef SUPPORT_TLS |
e6060e2c | 241 | { "gnutls_compat_mode", opt_bool, &gnutls_compat_mode }, |
a5f239e4 | 242 | { "gnutls_enable_pkcs11", opt_bool, &gnutls_enable_pkcs11 }, |
b1770b6e | 243 | /* These three gnutls_require_* options stopped working in Exim 4.80 */ |
83da1223 PH |
244 | { "gnutls_require_kx", opt_stringptr, &gnutls_require_kx }, |
245 | { "gnutls_require_mac", opt_stringptr, &gnutls_require_mac }, | |
246 | { "gnutls_require_protocols", opt_stringptr, &gnutls_require_proto }, | |
247 | #endif | |
059ec3d9 PH |
248 | { "header_line_maxsize", opt_int, &header_line_maxsize }, |
249 | { "header_maxsize", opt_int, &header_maxsize }, | |
250 | { "headers_charset", opt_stringptr, &headers_charset }, | |
251 | { "helo_accept_junk_hosts", opt_stringptr, &helo_accept_junk_hosts }, | |
252 | { "helo_allow_chars", opt_stringptr, &helo_allow_chars }, | |
253 | { "helo_lookup_domains", opt_stringptr, &helo_lookup_domains }, | |
254 | { "helo_try_verify_hosts", opt_stringptr, &helo_try_verify_hosts }, | |
255 | { "helo_verify_hosts", opt_stringptr, &helo_verify_hosts }, | |
256 | { "hold_domains", opt_stringptr, &hold_domains }, | |
257 | { "host_lookup", opt_stringptr, &host_lookup }, | |
258 | { "host_lookup_order", opt_stringptr, &host_lookup_order }, | |
259 | { "host_reject_connection", opt_stringptr, &host_reject_connection }, | |
260 | { "hosts_connection_nolog", opt_stringptr, &hosts_connection_nolog }, | |
261 | { "hosts_treat_as_local", opt_stringptr, &hosts_treat_as_local }, | |
262 | #ifdef LOOKUP_IBASE | |
263 | { "ibase_servers", opt_stringptr, &ibase_servers }, | |
264 | #endif | |
265 | { "ignore_bounce_errors_after", opt_time, &ignore_bounce_errors_after }, | |
266 | { "ignore_fromline_hosts", opt_stringptr, &ignore_fromline_hosts }, | |
267 | { "ignore_fromline_local", opt_bool, &ignore_fromline_local }, | |
268 | { "keep_malformed", opt_time, &keep_malformed }, | |
269 | #ifdef LOOKUP_LDAP | |
bc19a55b PP |
270 | { "ldap_ca_cert_dir", opt_stringptr, &eldap_ca_cert_dir }, |
271 | { "ldap_ca_cert_file", opt_stringptr, &eldap_ca_cert_file }, | |
272 | { "ldap_cert_file", opt_stringptr, &eldap_cert_file }, | |
273 | { "ldap_cert_key", opt_stringptr, &eldap_cert_key }, | |
274 | { "ldap_cipher_suite", opt_stringptr, &eldap_cipher_suite }, | |
059ec3d9 | 275 | { "ldap_default_servers", opt_stringptr, &eldap_default_servers }, |
bc19a55b PP |
276 | { "ldap_require_cert", opt_stringptr, &eldap_require_cert }, |
277 | { "ldap_start_tls", opt_bool, &eldap_start_tls }, | |
059ec3d9 PH |
278 | { "ldap_version", opt_int, &eldap_version }, |
279 | #endif | |
280 | { "local_from_check", opt_bool, &local_from_check }, | |
281 | { "local_from_prefix", opt_stringptr, &local_from_prefix }, | |
282 | { "local_from_suffix", opt_stringptr, &local_from_suffix }, | |
283 | { "local_interfaces", opt_stringptr, &local_interfaces }, | |
284 | { "local_scan_timeout", opt_time, &local_scan_timeout }, | |
285 | { "local_sender_retain", opt_bool, &local_sender_retain }, | |
286 | { "localhost_number", opt_stringptr, &host_number_string }, | |
287 | { "log_file_path", opt_stringptr, &log_file_path }, | |
288 | { "log_selector", opt_stringptr, &log_selector_string }, | |
289 | { "log_timezone", opt_bool, &log_timezone }, | |
290 | { "lookup_open_max", opt_int, &lookup_open_max }, | |
291 | { "max_username_length", opt_int, &max_username_length }, | |
ddea74fa | 292 | { "message_body_newlines", opt_bool, &message_body_newlines }, |
059ec3d9 PH |
293 | { "message_body_visible", opt_mkint, &message_body_visible }, |
294 | { "message_id_header_domain", opt_stringptr, &message_id_domain }, | |
295 | { "message_id_header_text", opt_stringptr, &message_id_text }, | |
296 | { "message_logs", opt_bool, &message_logs }, | |
297 | { "message_size_limit", opt_stringptr, &message_size_limit }, | |
298 | #ifdef SUPPORT_MOVE_FROZEN_MESSAGES | |
299 | { "move_frozen_messages", opt_bool, &move_frozen_messages }, | |
300 | #endif | |
301 | { "mua_wrapper", opt_bool, &mua_wrapper }, | |
302 | #ifdef LOOKUP_MYSQL | |
303 | { "mysql_servers", opt_stringptr, &mysql_servers }, | |
304 | #endif | |
305 | { "never_users", opt_uidlist, &never_users }, | |
77bb000f PP |
306 | #ifdef SUPPORT_TLS |
307 | { "openssl_options", opt_stringptr, &openssl_options }, | |
308 | #endif | |
059ec3d9 PH |
309 | #ifdef LOOKUP_ORACLE |
310 | { "oracle_servers", opt_stringptr, &oracle_servers }, | |
311 | #endif | |
312 | { "percent_hack_domains", opt_stringptr, &percent_hack_domains }, | |
313 | #ifdef EXIM_PERL | |
314 | { "perl_at_start", opt_bool, &opt_perl_at_start }, | |
315 | { "perl_startup", opt_stringptr, &opt_perl_startup }, | |
316 | #endif | |
317 | #ifdef LOOKUP_PGSQL | |
318 | { "pgsql_servers", opt_stringptr, &pgsql_servers }, | |
319 | #endif | |
320 | { "pid_file_path", opt_stringptr, &pid_file_path }, | |
321 | { "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts }, | |
fd98a5c6 JH |
322 | #ifdef EXPERIMENTAL_PRDR |
323 | { "prdr_enable", opt_bool, &prdr_enable }, | |
324 | #endif | |
059ec3d9 PH |
325 | { "preserve_message_logs", opt_bool, &preserve_message_logs }, |
326 | { "primary_hostname", opt_stringptr, &primary_hostname }, | |
327 | { "print_topbitchars", opt_bool, &print_topbitchars }, | |
328 | { "process_log_path", opt_stringptr, &process_log_path }, | |
329 | { "prod_requires_admin", opt_bool, &prod_requires_admin }, | |
330 | { "qualify_domain", opt_stringptr, &qualify_domain_sender }, | |
331 | { "qualify_recipient", opt_stringptr, &qualify_domain_recipient }, | |
332 | { "queue_domains", opt_stringptr, &queue_domains }, | |
333 | { "queue_list_requires_admin",opt_bool, &queue_list_requires_admin }, | |
334 | { "queue_only", opt_bool, &queue_only }, | |
335 | { "queue_only_file", opt_stringptr, &queue_only_file }, | |
336 | { "queue_only_load", opt_fixed, &queue_only_load }, | |
8669f003 | 337 | { "queue_only_load_latch", opt_bool, &queue_only_load_latch }, |
059ec3d9 PH |
338 | { "queue_only_override", opt_bool, &queue_only_override }, |
339 | { "queue_run_in_order", opt_bool, &queue_run_in_order }, | |
340 | { "queue_run_max", opt_int, &queue_run_max }, | |
341 | { "queue_smtp_domains", opt_stringptr, &queue_smtp_domains }, | |
342 | { "receive_timeout", opt_time, &receive_timeout }, | |
343 | { "received_header_text", opt_stringptr, &received_header_text }, | |
344 | { "received_headers_max", opt_int, &received_headers_max }, | |
345 | { "recipient_unqualified_hosts", opt_stringptr, &recipient_unqualified_hosts }, | |
346 | { "recipients_max", opt_int, &recipients_max }, | |
347 | { "recipients_max_reject", opt_bool, &recipients_max_reject }, | |
348 | { "remote_max_parallel", opt_int, &remote_max_parallel }, | |
349 | { "remote_sort_domains", opt_stringptr, &remote_sort_domains }, | |
350 | { "retry_data_expire", opt_time, &retry_data_expire }, | |
351 | { "retry_interval_max", opt_time, &retry_interval_max }, | |
352 | { "return_path_remove", opt_bool, &return_path_remove }, | |
353 | { "return_size_limit", opt_mkint|opt_hidden, &bounce_return_size_limit }, | |
354 | { "rfc1413_hosts", opt_stringptr, &rfc1413_hosts }, | |
355 | { "rfc1413_query_timeout", opt_time, &rfc1413_query_timeout }, | |
356 | { "sender_unqualified_hosts", opt_stringptr, &sender_unqualified_hosts }, | |
357 | { "smtp_accept_keepalive", opt_bool, &smtp_accept_keepalive }, | |
358 | { "smtp_accept_max", opt_int, &smtp_accept_max }, | |
359 | { "smtp_accept_max_nonmail", opt_int, &smtp_accept_max_nonmail }, | |
360 | { "smtp_accept_max_nonmail_hosts", opt_stringptr, &smtp_accept_max_nonmail_hosts }, | |
361 | { "smtp_accept_max_per_connection", opt_int, &smtp_accept_max_per_connection }, | |
362 | { "smtp_accept_max_per_host", opt_stringptr, &smtp_accept_max_per_host }, | |
363 | { "smtp_accept_queue", opt_int, &smtp_accept_queue }, | |
364 | { "smtp_accept_queue_per_connection", opt_int, &smtp_accept_queue_per_connection }, | |
365 | { "smtp_accept_reserve", opt_int, &smtp_accept_reserve }, | |
366 | { "smtp_active_hostname", opt_stringptr, &raw_active_hostname }, | |
367 | { "smtp_banner", opt_stringptr, &smtp_banner }, | |
368 | { "smtp_check_spool_space", opt_bool, &smtp_check_spool_space }, | |
369 | { "smtp_connect_backlog", opt_int, &smtp_connect_backlog }, | |
370 | { "smtp_enforce_sync", opt_bool, &smtp_enforce_sync }, | |
371 | { "smtp_etrn_command", opt_stringptr, &smtp_etrn_command }, | |
372 | { "smtp_etrn_serialize", opt_bool, &smtp_etrn_serialize }, | |
373 | { "smtp_load_reserve", opt_fixed, &smtp_load_reserve }, | |
374 | { "smtp_max_synprot_errors", opt_int, &smtp_max_synprot_errors }, | |
375 | { "smtp_max_unknown_commands",opt_int, &smtp_max_unknown_commands }, | |
376 | { "smtp_ratelimit_hosts", opt_stringptr, &smtp_ratelimit_hosts }, | |
377 | { "smtp_ratelimit_mail", opt_stringptr, &smtp_ratelimit_mail }, | |
378 | { "smtp_ratelimit_rcpt", opt_stringptr, &smtp_ratelimit_rcpt }, | |
379 | { "smtp_receive_timeout", opt_time, &smtp_receive_timeout }, | |
380 | { "smtp_reserve_hosts", opt_stringptr, &smtp_reserve_hosts }, | |
381 | { "smtp_return_error_details",opt_bool, &smtp_return_error_details }, | |
8523533c TK |
382 | #ifdef WITH_CONTENT_SCAN |
383 | { "spamd_address", opt_stringptr, &spamd_address }, | |
65a7d8c3 NM |
384 | #endif |
385 | #ifdef EXPERIMENTAL_SPF | |
386 | { "spf_guess", opt_stringptr, &spf_guess }, | |
8523533c | 387 | #endif |
059ec3d9 PH |
388 | { "split_spool_directory", opt_bool, &split_spool_directory }, |
389 | { "spool_directory", opt_stringptr, &spool_directory }, | |
31480e42 PH |
390 | #ifdef LOOKUP_SQLITE |
391 | { "sqlite_lock_timeout", opt_int, &sqlite_lock_timeout }, | |
392 | #endif | |
8523533c TK |
393 | #ifdef EXPERIMENTAL_SRS |
394 | { "srs_config", opt_stringptr, &srs_config }, | |
384152a6 TK |
395 | { "srs_hashlength", opt_int, &srs_hashlength }, |
396 | { "srs_hashmin", opt_int, &srs_hashmin }, | |
397 | { "srs_maxage", opt_int, &srs_maxage }, | |
398 | { "srs_secrets", opt_stringptr, &srs_secrets }, | |
399 | { "srs_usehash", opt_bool, &srs_usehash }, | |
400 | { "srs_usetimestamp", opt_bool, &srs_usetimestamp }, | |
8523533c | 401 | #endif |
38a0a95f | 402 | { "strict_acl_vars", opt_bool, &strict_acl_vars }, |
059ec3d9 PH |
403 | { "strip_excess_angle_brackets", opt_bool, &strip_excess_angle_brackets }, |
404 | { "strip_trailing_dot", opt_bool, &strip_trailing_dot }, | |
405 | { "syslog_duplication", opt_bool, &syslog_duplication }, | |
406 | { "syslog_facility", opt_stringptr, &syslog_facility_str }, | |
407 | { "syslog_processname", opt_stringptr, &syslog_processname }, | |
408 | { "syslog_timestamp", opt_bool, &syslog_timestamp }, | |
409 | { "system_filter", opt_stringptr, &system_filter }, | |
410 | { "system_filter_directory_transport", opt_stringptr,&system_filter_directory_transport }, | |
411 | { "system_filter_file_transport",opt_stringptr,&system_filter_file_transport }, | |
412 | { "system_filter_group", opt_gid, &system_filter_gid }, | |
413 | { "system_filter_pipe_transport",opt_stringptr,&system_filter_pipe_transport }, | |
414 | { "system_filter_reply_transport",opt_stringptr,&system_filter_reply_transport }, | |
415 | { "system_filter_user", opt_uid, &system_filter_uid }, | |
416 | { "tcp_nodelay", opt_bool, &tcp_nodelay }, | |
5dc43717 JJ |
417 | #ifdef USE_TCP_WRAPPERS |
418 | { "tcp_wrappers_daemon_name", opt_stringptr, &tcp_wrappers_daemon_name }, | |
419 | #endif | |
059ec3d9 PH |
420 | { "timeout_frozen_after", opt_time, &timeout_frozen_after }, |
421 | { "timezone", opt_stringptr, &timezone_string }, | |
422 | #ifdef SUPPORT_TLS | |
423 | { "tls_advertise_hosts", opt_stringptr, &tls_advertise_hosts }, | |
424 | { "tls_certificate", opt_stringptr, &tls_certificate }, | |
425 | { "tls_crl", opt_stringptr, &tls_crl }, | |
3375e053 | 426 | { "tls_dh_max_bits", opt_int, &tls_dh_max_bits }, |
059ec3d9 | 427 | { "tls_dhparam", opt_stringptr, &tls_dhparam }, |
817d9f57 | 428 | # if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS) |
3f7eeb86 | 429 | { "tls_ocsp_file", opt_stringptr, &tls_ocsp_file }, |
817d9f57 JH |
430 | # endif |
431 | { "tls_on_connect_ports", opt_stringptr, &tls_in.on_connect_ports }, | |
059ec3d9 PH |
432 | { "tls_privatekey", opt_stringptr, &tls_privatekey }, |
433 | { "tls_remember_esmtp", opt_bool, &tls_remember_esmtp }, | |
434 | { "tls_require_ciphers", opt_stringptr, &tls_require_ciphers }, | |
435 | { "tls_try_verify_hosts", opt_stringptr, &tls_try_verify_hosts }, | |
436 | { "tls_verify_certificates", opt_stringptr, &tls_verify_certificates }, | |
437 | { "tls_verify_hosts", opt_stringptr, &tls_verify_hosts }, | |
438 | #endif | |
439 | { "trusted_groups", opt_gidlist, &trusted_groups }, | |
440 | { "trusted_users", opt_uidlist, &trusted_users }, | |
441 | { "unknown_login", opt_stringptr, &unknown_login }, | |
442 | { "unknown_username", opt_stringptr, &unknown_username }, | |
443 | { "untrusted_set_sender", opt_stringptr, &untrusted_set_sender }, | |
444 | { "uucp_from_pattern", opt_stringptr, &uucp_from_pattern }, | |
445 | { "uucp_from_sender", opt_stringptr, &uucp_from_sender }, | |
446 | { "warn_message_file", opt_stringptr, &warn_message_file }, | |
447 | { "write_rejectlog", opt_bool, &write_rejectlog } | |
448 | }; | |
449 | ||
450 | static int optionlist_config_size = | |
451 | sizeof(optionlist_config)/sizeof(optionlist); | |
452 | ||
453 | ||
454 | ||
455 | /************************************************* | |
456 | * Find the name of an option * | |
457 | *************************************************/ | |
458 | ||
459 | /* This function is to aid debugging. Various functions take arguments that are | |
460 | pointer variables in the options table or in option tables for various drivers. | |
461 | For debugging output, it is useful to be able to find the name of the option | |
462 | which is currently being processed. This function finds it, if it exists, by | |
463 | searching the table(s). | |
464 | ||
465 | Arguments: a value that is presumed to be in the table above | |
466 | Returns: the option name, or an empty string | |
467 | */ | |
468 | ||
469 | uschar * | |
470 | readconf_find_option(void *p) | |
471 | { | |
472 | int i; | |
473 | router_instance *r; | |
474 | transport_instance *t; | |
475 | ||
476 | for (i = 0; i < optionlist_config_size; i++) | |
477 | if (p == optionlist_config[i].value) return US optionlist_config[i].name; | |
478 | ||
479 | for (r = routers; r != NULL; r = r->next) | |
480 | { | |
481 | router_info *ri = r->info; | |
482 | for (i = 0; i < ri->options_count[0]; i++) | |
483 | { | |
484 | if ((ri->options[i].type & opt_mask) != opt_stringptr) continue; | |
485 | if (p == (char *)(r->options_block) + (long int)(ri->options[i].value)) | |
486 | return US ri->options[i].name; | |
487 | } | |
488 | } | |
489 | ||
490 | for (t = transports; t != NULL; t = t->next) | |
491 | { | |
492 | transport_info *ti = t->info; | |
493 | for (i = 0; i < ti->options_count[0]; i++) | |
494 | { | |
495 | if ((ti->options[i].type & opt_mask) != opt_stringptr) continue; | |
496 | if (p == (char *)(t->options_block) + (long int)(ti->options[i].value)) | |
497 | return US ti->options[i].name; | |
498 | } | |
499 | } | |
500 | ||
501 | return US""; | |
502 | } | |
503 | ||
504 | ||
505 | ||
506 | ||
cf00dad6 PH |
507 | /************************************************* |
508 | * Deal with an assignment to a macro * | |
509 | *************************************************/ | |
510 | ||
511 | /* This function is called when a line that starts with an upper case letter is | |
512 | encountered. The argument "line" should contain a complete logical line, and | |
513 | start with the first letter of the macro name. The macro name and the | |
514 | replacement text are extracted and stored. Redefinition of existing, | |
515 | non-command line, macros is permitted using '==' instead of '='. | |
516 | ||
517 | Arguments: | |
518 | s points to the start of the logical line | |
519 | ||
520 | Returns: nothing | |
521 | */ | |
522 | ||
523 | static void | |
524 | read_macro_assignment(uschar *s) | |
525 | { | |
526 | uschar name[64]; | |
527 | int namelen = 0; | |
528 | BOOL redef = FALSE; | |
529 | macro_item *m; | |
530 | macro_item *mlast = NULL; | |
531 | ||
532 | while (isalnum(*s) || *s == '_') | |
533 | { | |
534 | if (namelen >= sizeof(name) - 1) | |
535 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
ef840681 | 536 | "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1); |
cf00dad6 PH |
537 | name[namelen++] = *s++; |
538 | } | |
539 | name[namelen] = 0; | |
540 | ||
541 | while (isspace(*s)) s++; | |
542 | if (*s++ != '=') | |
543 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition"); | |
544 | ||
545 | if (*s == '=') | |
546 | { | |
547 | redef = TRUE; | |
548 | s++; | |
549 | } | |
550 | while (isspace(*s)) s++; | |
551 | ||
552 | /* If an existing macro of the same name was defined on the command line, we | |
553 | just skip this definition. It's an error to attempt to redefine a macro without | |
554 | redef set to TRUE, or to redefine a macro when it hasn't been defined earlier. | |
555 | It is also an error to define a macro whose name begins with the name of a | |
556 | previously defined macro. Note: it is documented that the other way round | |
557 | works. */ | |
558 | ||
559 | for (m = macros; m != NULL; m = m->next) | |
560 | { | |
561 | int len = Ustrlen(m->name); | |
562 | ||
563 | if (Ustrcmp(m->name, name) == 0) | |
564 | { | |
565 | if (!m->command_line && !redef) | |
566 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already " | |
567 | "defined (use \"==\" if you want to redefine it", name); | |
568 | break; | |
569 | } | |
570 | ||
571 | if (len < namelen && Ustrstr(name, m->name) != NULL) | |
572 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as " | |
573 | "a macro because previously defined macro \"%s\" is a substring", | |
574 | name, m->name); | |
575 | ||
576 | /* We cannot have this test, because it is documented that a substring | |
577 | macro is permitted (there is even an example). | |
578 | * | |
579 | * if (len > namelen && Ustrstr(m->name, name) != NULL) | |
580 | * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as " | |
581 | * "a macro because it is a substring of previously defined macro \"%s\"", | |
582 | * name, m->name); | |
583 | */ | |
584 | ||
585 | mlast = m; | |
586 | } | |
587 | ||
588 | /* Check for an overriding command-line definition. */ | |
589 | ||
590 | if (m != NULL && m->command_line) return; | |
591 | ||
592 | /* Redefinition must refer to an existing macro. */ | |
593 | ||
594 | if (redef) | |
595 | { | |
596 | if (m == NULL) | |
597 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro " | |
598 | "\"%s\"", name); | |
599 | } | |
600 | ||
601 | /* We have a new definition. The macro_item structure includes a final vector | |
602 | called "name" which is one byte long. Thus, adding "namelen" gives us enough | |
603 | room to store the "name" string. */ | |
604 | ||
605 | else | |
606 | { | |
607 | m = store_get(sizeof(macro_item) + namelen); | |
608 | if (macros == NULL) macros = m; else mlast->next = m; | |
609 | Ustrncpy(m->name, name, namelen); | |
610 | m->name[namelen] = 0; | |
611 | m->next = NULL; | |
612 | m->command_line = FALSE; | |
613 | } | |
614 | ||
615 | /* Set the value of the new or redefined macro */ | |
616 | ||
617 | m->replacement = string_copy(s); | |
618 | } | |
619 | ||
620 | ||
621 | ||
622 | ||
059ec3d9 PH |
623 | |
624 | /************************************************* | |
625 | * Read configuration line * | |
626 | *************************************************/ | |
627 | ||
628 | /* A logical line of text is read from the configuration file into the big | |
629 | buffer, taking account of macros, .includes, and continuations. The size of | |
630 | big_buffer is increased if necessary. The count of configuration lines is | |
631 | maintained. Physical input lines starting with # (ignoring leading white space, | |
632 | and after macro replacement) and empty logical lines are always ignored. | |
633 | Leading and trailing spaces are removed. | |
634 | ||
635 | If we hit a line of the form "begin xxxx", the xxxx is placed in the | |
636 | next_section vector, and the function returns NULL, indicating the end of a | |
637 | configuration section. On end-of-file, NULL is returned with next_section | |
638 | empty. | |
639 | ||
640 | Arguments: none | |
641 | ||
642 | Returns: a pointer to the first non-blank in the line, | |
643 | or NULL if eof or end of section is reached | |
644 | */ | |
645 | ||
646 | static uschar * | |
647 | get_config_line(void) | |
648 | { | |
649 | int startoffset = 0; /* To first non-blank char in logical line */ | |
650 | int len = 0; /* Of logical line so far */ | |
651 | int newlen; | |
652 | uschar *s, *ss; | |
653 | macro_item *m; | |
654 | BOOL macro_found; | |
655 | ||
656 | /* Loop for handling continuation lines, skipping comments, and dealing with | |
657 | .include files. */ | |
658 | ||
659 | for (;;) | |
660 | { | |
661 | if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL) | |
662 | { | |
663 | if (config_file_stack != NULL) /* EOF inside .include */ | |
664 | { | |
f1e894f3 | 665 | (void)fclose(config_file); |
059ec3d9 PH |
666 | config_file = config_file_stack->file; |
667 | config_filename = config_file_stack->filename; | |
668 | config_lineno = config_file_stack->lineno; | |
669 | config_file_stack = config_file_stack->next; | |
670 | continue; | |
671 | } | |
672 | ||
673 | /* EOF at top level */ | |
674 | ||
675 | if (cstate_stack_ptr >= 0) | |
676 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
677 | "Unexpected end of configuration file: .endif missing"); | |
678 | ||
679 | if (len != 0) break; /* EOF after continuation */ | |
680 | next_section[0] = 0; /* EOF at start of logical line */ | |
681 | return NULL; | |
682 | } | |
683 | ||
684 | config_lineno++; | |
685 | newlen = len + Ustrlen(big_buffer + len); | |
686 | ||
687 | /* Handle pathologically long physical lines - yes, it did happen - by | |
688 | extending big_buffer at this point. The code also copes with very long | |
689 | logical lines. */ | |
690 | ||
691 | while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n') | |
692 | { | |
693 | uschar *newbuffer; | |
694 | big_buffer_size += BIG_BUFFER_SIZE; | |
695 | newbuffer = store_malloc(big_buffer_size); | |
696 | ||
697 | /* This use of strcpy is OK because we know that the string in the old | |
698 | buffer is shorter than the new buffer. */ | |
699 | ||
700 | Ustrcpy(newbuffer, big_buffer); | |
701 | store_free(big_buffer); | |
702 | big_buffer = newbuffer; | |
703 | if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL) | |
704 | break; | |
705 | newlen += Ustrlen(big_buffer + newlen); | |
706 | } | |
707 | ||
708 | /* Find the true start of the physical line - leading spaces are always | |
709 | ignored. */ | |
710 | ||
711 | ss = big_buffer + len; | |
712 | while (isspace(*ss)) ss++; | |
713 | ||
714 | /* Process the physical line for macros. If this is the start of the logical | |
715 | line, skip over initial text at the start of the line if it starts with an | |
716 | upper case character followed by a sequence of name characters and an equals | |
717 | sign, because that is the definition of a new macro, and we don't do | |
718 | replacement therein. */ | |
719 | ||
720 | s = ss; | |
721 | if (len == 0 && isupper(*s)) | |
722 | { | |
723 | while (isalnum(*s) || *s == '_') s++; | |
724 | while (isspace(*s)) s++; | |
725 | if (*s != '=') s = ss; /* Not a macro definition */ | |
726 | } | |
727 | ||
728 | /* For each defined macro, scan the line (from after XXX= if present), | |
729 | replacing all occurrences of the macro. */ | |
730 | ||
731 | macro_found = FALSE; | |
732 | for (m = macros; m != NULL; m = m->next) | |
733 | { | |
734 | uschar *p, *pp; | |
735 | uschar *t = s; | |
736 | ||
737 | while ((p = Ustrstr(t, m->name)) != NULL) | |
738 | { | |
739 | int moveby; | |
740 | int namelen = Ustrlen(m->name); | |
741 | int replen = Ustrlen(m->replacement); | |
742 | ||
743 | /* Expand the buffer if necessary */ | |
744 | ||
745 | while (newlen - namelen + replen + 1 > big_buffer_size) | |
746 | { | |
747 | int newsize = big_buffer_size + BIG_BUFFER_SIZE; | |
748 | uschar *newbuffer = store_malloc(newsize); | |
749 | memcpy(newbuffer, big_buffer, newlen + 1); | |
750 | p = newbuffer + (p - big_buffer); | |
751 | s = newbuffer + (s - big_buffer); | |
752 | ss = newbuffer + (ss - big_buffer); | |
753 | t = newbuffer + (t - big_buffer); | |
754 | big_buffer_size = newsize; | |
755 | store_free(big_buffer); | |
756 | big_buffer = newbuffer; | |
757 | } | |
758 | ||
759 | /* Shuffle the remaining characters up or down in the buffer before | |
760 | copying in the replacement text. Don't rescan the replacement for this | |
761 | same macro. */ | |
762 | ||
763 | pp = p + namelen; | |
764 | moveby = replen - namelen; | |
765 | if (moveby != 0) | |
766 | { | |
767 | memmove(p + replen, pp, (big_buffer + newlen) - pp + 1); | |
768 | newlen += moveby; | |
769 | } | |
770 | Ustrncpy(p, m->replacement, replen); | |
771 | t = p + replen; | |
772 | macro_found = TRUE; | |
773 | } | |
774 | } | |
775 | ||
776 | /* An empty macro replacement at the start of a line could mean that ss no | |
777 | longer points to the first non-blank character. */ | |
778 | ||
779 | while (isspace(*ss)) ss++; | |
780 | ||
781 | /* Check for comment lines - these are physical lines. */ | |
782 | ||
783 | if (*ss == '#') continue; | |
784 | ||
785 | /* Handle conditionals, which are also applied to physical lines. Conditions | |
786 | are of the form ".ifdef ANYTEXT" and are treated as true if any macro | |
787 | expansion occured on the rest of the line. A preliminary test for the leading | |
788 | '.' saves effort on most lines. */ | |
789 | ||
790 | if (*ss == '.') | |
791 | { | |
792 | int i; | |
793 | ||
794 | /* Search the list of conditional directives */ | |
795 | ||
796 | for (i = 0; i < cond_list_size; i++) | |
797 | { | |
798 | int n; | |
799 | cond_item *c = cond_list+i; | |
800 | if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue; | |
801 | ||
802 | /* The following character must be white space or end of string */ | |
803 | ||
804 | n = ss[1 + c->namelen]; | |
805 | if (n != ' ' && n != 't' && n != '\n' && n != 0) break; | |
806 | ||
807 | /* .ifdef and .ifndef push the current state onto the stack, then set | |
808 | a new one from the table. Stack overflow is an error */ | |
809 | ||
810 | if (c->pushpop > 0) | |
811 | { | |
812 | if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1) | |
813 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
814 | ".%s nested too deeply", c->name); | |
815 | cstate_stack[++cstate_stack_ptr] = cstate; | |
816 | cstate = next_cstate[cstate][macro_found? c->action1 : c->action2]; | |
817 | } | |
818 | ||
819 | /* For any of the others, stack underflow is an error. The next state | |
820 | comes either from the stack (.endif) or from the table. */ | |
821 | ||
822 | else | |
823 | { | |
824 | if (cstate_stack_ptr < 0) | |
825 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
826 | ".%s without matching .ifdef", c->name); | |
827 | cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] : | |
828 | next_cstate[cstate][macro_found? c->action1 : c->action2]; | |
829 | } | |
830 | ||
831 | /* Having dealt with a directive, break the loop */ | |
832 | ||
833 | break; | |
834 | } | |
835 | ||
836 | /* If we have handled a conditional directive, continue with the next | |
837 | physical line. Otherwise, fall through. */ | |
838 | ||
839 | if (i < cond_list_size) continue; | |
840 | } | |
841 | ||
842 | /* If the conditional state is not 0 (actively using these lines), ignore | |
843 | this input line. */ | |
844 | ||
845 | if (cstate != 0) continue; /* Conditional skip */ | |
846 | ||
847 | /* Handle .include lines - these are also physical lines. */ | |
848 | ||
849 | if (Ustrncmp(ss, ".include", 8) == 0 && | |
850 | (isspace(ss[8]) || | |
851 | (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18])))) | |
852 | { | |
853 | uschar *t; | |
854 | int include_if_exists = isspace(ss[8])? 0 : 10; | |
855 | config_file_item *save; | |
856 | struct stat statbuf; | |
857 | ||
858 | ss += 9 + include_if_exists; | |
859 | while (isspace(*ss)) ss++; | |
860 | t = ss + Ustrlen(ss); | |
861 | while (t > ss && isspace(t[-1])) t--; | |
862 | if (*ss == '\"' && t[-1] == '\"') | |
863 | { | |
864 | ss++; | |
865 | t--; | |
866 | } | |
867 | *t = 0; | |
868 | ||
145396a6 PH |
869 | if (*ss != '/') |
870 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-" | |
871 | "absolute path \"%s\"", ss); | |
872 | ||
059ec3d9 PH |
873 | if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue; |
874 | ||
875 | save = store_get(sizeof(config_file_item)); | |
876 | save->next = config_file_stack; | |
877 | config_file_stack = save; | |
878 | save->file = config_file; | |
879 | save->filename = config_filename; | |
880 | save->lineno = config_lineno; | |
881 | ||
882 | config_file = Ufopen(ss, "rb"); | |
883 | if (config_file == NULL) | |
884 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included " | |
885 | "configuration file %s", ss); | |
886 | config_filename = string_copy(ss); | |
887 | config_lineno = 0; | |
888 | continue; | |
889 | } | |
890 | ||
891 | /* If this is the start of the logical line, remember where the non-blank | |
892 | data starts. Otherwise shuffle down continuation lines to remove leading | |
893 | white space. */ | |
894 | ||
895 | if (len == 0) | |
896 | startoffset = ss - big_buffer; | |
897 | else | |
898 | { | |
899 | s = big_buffer + len; | |
900 | if (ss > s) | |
901 | { | |
902 | memmove(s, ss, (newlen - len) - (ss - s) + 1); | |
903 | newlen -= ss - s; | |
904 | } | |
905 | } | |
906 | ||
907 | /* Accept the new addition to the line. Remove trailing white space. */ | |
908 | ||
909 | len = newlen; | |
910 | while (len > 0 && isspace(big_buffer[len-1])) len--; | |
911 | big_buffer[len] = 0; | |
912 | ||
913 | /* We are done if the line does not end in backslash and contains some data. | |
914 | Empty logical lines are ignored. For continuations, remove the backslash and | |
915 | go round the loop to read the continuation line. */ | |
916 | ||
917 | if (len > 0) | |
918 | { | |
919 | if (big_buffer[len-1] != '\\') break; /* End of logical line */ | |
920 | big_buffer[--len] = 0; /* Remove backslash */ | |
921 | } | |
922 | } /* Loop for reading multiple physical lines */ | |
923 | ||
924 | /* We now have a logical line. Test for the end of a configuration section (or, | |
925 | more accurately, for the start of the next section). Place the name of the next | |
926 | section in next_section, and return NULL. If the name given is longer than | |
927 | next_section, truncate it. It will be unrecognized later, because all the known | |
928 | section names do fit. Leave space for pluralizing. */ | |
929 | ||
930 | s = big_buffer + startoffset; /* First non-space character */ | |
931 | if (strncmpic(s, US"begin ", 6) == 0) | |
932 | { | |
933 | s += 6; | |
934 | while (isspace(*s)) s++; | |
935 | if (big_buffer + len - s > sizeof(next_section) - 2) | |
936 | s[sizeof(next_section) - 2] = 0; | |
937 | Ustrcpy(next_section, s); | |
938 | return NULL; | |
939 | } | |
940 | ||
941 | /* Return the first non-blank character. */ | |
942 | ||
943 | return s; | |
944 | } | |
945 | ||
946 | ||
947 | ||
948 | /************************************************* | |
949 | * Read a name * | |
950 | *************************************************/ | |
951 | ||
952 | /* The yield is the pointer to the next uschar. Names longer than the | |
953 | output space are silently truncated. This function is also used from acl.c when | |
954 | parsing ACLs. | |
955 | ||
956 | Arguments: | |
957 | name where to put the name | |
958 | len length of name | |
959 | s input pointer | |
960 | ||
961 | Returns: new input pointer | |
962 | */ | |
963 | ||
964 | uschar * | |
965 | readconf_readname(uschar *name, int len, uschar *s) | |
966 | { | |
967 | int p = 0; | |
968 | while (isspace(*s)) s++; | |
969 | if (isalpha(*s)) | |
970 | { | |
971 | while (isalnum(*s) || *s == '_') | |
972 | { | |
973 | if (p < len-1) name[p++] = *s; | |
974 | s++; | |
975 | } | |
976 | } | |
977 | name[p] = 0; | |
978 | while (isspace(*s)) s++; | |
979 | return s; | |
980 | } | |
981 | ||
982 | ||
983 | ||
984 | ||
985 | /************************************************* | |
986 | * Read a time value * | |
987 | *************************************************/ | |
988 | ||
989 | /* This function is also called from outside, to read argument | |
990 | time values. The format of a time value is: | |
991 | ||
992 | [<n>w][<n>d][<n>h][<n>m][<n>s] | |
993 | ||
994 | as long as at least one is present. If a format error is encountered, | |
995 | return a negative value. The value must be terminated by the given | |
996 | terminator. | |
997 | ||
998 | Arguments: | |
999 | s input pointer | |
1000 | terminator required terminating character | |
1001 | return_msec if TRUE, allow fractional seconds and return milliseconds | |
1002 | ||
1003 | Returns: the time value, or -1 on syntax error | |
1004 | value is seconds if return_msec is FALSE | |
1005 | value is milliseconds if return_msec is TRUE | |
1006 | */ | |
1007 | ||
1008 | int | |
1009 | readconf_readtime(uschar *s, int terminator, BOOL return_msec) | |
1010 | { | |
1011 | int yield = 0; | |
1012 | for (;;) | |
1013 | { | |
1014 | int value, count; | |
1015 | double fraction; | |
1016 | ||
1017 | if (!isdigit(*s)) return -1; | |
1018 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1019 | s += count; | |
1020 | ||
1021 | switch (*s) | |
1022 | { | |
1023 | case 'w': value *= 7; | |
1024 | case 'd': value *= 24; | |
1025 | case 'h': value *= 60; | |
1026 | case 'm': value *= 60; | |
1027 | case 's': s++; | |
1028 | break; | |
1029 | ||
1030 | case '.': | |
1031 | if (!return_msec) return -1; | |
1032 | (void)sscanf(CS s, "%lf%n", &fraction, &count); | |
1033 | s += count; | |
1034 | if (*s++ != 's') return -1; | |
1035 | yield += (int)(fraction * 1000.0); | |
1036 | break; | |
1037 | ||
1038 | default: return -1; | |
1039 | } | |
1040 | ||
1041 | if (return_msec) value *= 1000; | |
1042 | yield += value; | |
1043 | if (*s == terminator) return yield; | |
1044 | } | |
1045 | /* Control never reaches here. */ | |
1046 | } | |
1047 | ||
1048 | ||
1049 | ||
1050 | /************************************************* | |
1051 | * Read a fixed point value * | |
1052 | *************************************************/ | |
1053 | ||
1054 | /* The value is returned *1000 | |
1055 | ||
1056 | Arguments: | |
1057 | s input pointer | |
1058 | terminator required terminator | |
1059 | ||
1060 | Returns: the value, or -1 on error | |
1061 | */ | |
1062 | ||
1063 | static int | |
1064 | readconf_readfixed(uschar *s, int terminator) | |
1065 | { | |
1066 | int yield = 0; | |
1067 | int value, count; | |
1068 | if (!isdigit(*s)) return -1; | |
1069 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1070 | s += count; | |
1071 | yield = value * 1000; | |
1072 | if (*s == '.') | |
1073 | { | |
1074 | int m = 100; | |
1075 | while (isdigit((*(++s)))) | |
1076 | { | |
1077 | yield += (*s - '0') * m; | |
1078 | m /= 10; | |
1079 | } | |
1080 | } | |
1081 | ||
1082 | return (*s == terminator)? yield : (-1); | |
1083 | } | |
1084 | ||
1085 | ||
1086 | ||
1087 | /************************************************* | |
1088 | * Find option in list * | |
1089 | *************************************************/ | |
1090 | ||
1091 | /* The lists are always in order, so binary chop can be used. | |
1092 | ||
1093 | Arguments: | |
1094 | name the option name to search for | |
1095 | ol the first entry in the option list | |
1096 | last one more than the offset of the last entry in the option list | |
1097 | ||
1098 | Returns: pointer to an option entry, or NULL if not found | |
1099 | */ | |
1100 | ||
1101 | static optionlist * | |
1102 | find_option(uschar *name, optionlist *ol, int last) | |
1103 | { | |
1104 | int first = 0; | |
1105 | while (last > first) | |
1106 | { | |
1107 | int middle = (first + last)/2; | |
1108 | int c = Ustrcmp(name, ol[middle].name); | |
1109 | if (c == 0) return ol + middle; | |
1110 | else if (c > 0) first = middle + 1; | |
1111 | else last = middle; | |
1112 | } | |
1113 | return NULL; | |
1114 | } | |
1115 | ||
1116 | ||
1117 | ||
1118 | /************************************************* | |
1119 | * Find a set flag in option list * | |
1120 | *************************************************/ | |
1121 | ||
1122 | /* Because some versions of Unix make no restrictions on the values of uids and | |
1123 | gids (even negative ones), we cannot represent "unset" by a special value. | |
1124 | There is therefore a separate boolean variable for each one indicating whether | |
1125 | a value is set or not. This function returns a pointer to the boolean, given | |
1126 | the original option name. It is a major disaster if the flag cannot be found. | |
1127 | ||
1128 | Arguments: | |
1129 | name the name of the uid or gid option | |
1130 | oltop points to the start of the relevant option list | |
1131 | last one more than the offset of the last item in the option list | |
1132 | data_block NULL when reading main options => data values in the option | |
1133 | list are absolute addresses; otherwise they are byte offsets | |
1134 | in data_block (used for driver options) | |
1135 | ||
1136 | Returns: a pointer to the boolean flag. | |
1137 | */ | |
1138 | ||
1139 | static BOOL * | |
1140 | get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block) | |
1141 | { | |
1142 | optionlist *ol; | |
1143 | uschar name2[64]; | |
1144 | sprintf(CS name2, "*set_%.50s", name); | |
1145 | ol = find_option(name2, oltop, last); | |
1146 | if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE, | |
1147 | "Exim internal error: missing set flag for %s", name); | |
1148 | return (data_block == NULL)? (BOOL *)(ol->value) : | |
1149 | (BOOL *)((uschar *)data_block + (long int)(ol->value)); | |
1150 | } | |
1151 | ||
1152 | ||
1153 | ||
1154 | ||
1155 | /************************************************* | |
1156 | * Output extra characters message and die * | |
1157 | *************************************************/ | |
1158 | ||
1159 | /* Called when an option line has junk on the end. Sometimes this is because | |
1160 | the sysadmin thinks comments are permitted. | |
1161 | ||
1162 | Arguments: | |
1163 | s points to the extra characters | |
1164 | t1..t3 strings to insert in the log message | |
1165 | ||
1166 | Returns: doesn't return; dies | |
1167 | */ | |
1168 | ||
1169 | static void | |
1170 | extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3) | |
1171 | { | |
1172 | uschar *comment = US""; | |
1173 | if (*s == '#') comment = US" (# is comment only at line start)"; | |
1174 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1175 | "extra characters follow %s%s%s%s", t1, t2, t3, comment); | |
1176 | } | |
1177 | ||
1178 | ||
1179 | ||
1180 | /************************************************* | |
1181 | * Read rewrite information * | |
1182 | *************************************************/ | |
1183 | ||
1184 | /* Each line of rewrite information contains: | |
1185 | ||
1186 | . A complete address in the form user@domain, possibly with | |
1187 | leading * for each part; or alternatively, a regex. | |
1188 | ||
1189 | . A replacement string (which will be expanded). | |
1190 | ||
1191 | . An optional sequence of one-letter flags, indicating which | |
1192 | headers etc. to apply this rule to. | |
1193 | ||
1194 | All this is decoded and placed into a control block. The OR of the flags is | |
1195 | maintained in a common word. | |
1196 | ||
1197 | Arguments: | |
1198 | p points to the string that makes up the rule | |
1199 | existflags points to the overall flag word | |
1200 | isglobal TRUE if reading global rewrite rules | |
1201 | ||
1202 | Returns: the control block for the parsed rule. | |
1203 | */ | |
1204 | ||
1205 | static rewrite_rule * | |
1206 | readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal) | |
1207 | { | |
1208 | rewrite_rule *next = store_get(sizeof(rewrite_rule)); | |
1209 | ||
1210 | next->next = NULL; | |
1211 | next->key = string_dequote(&p); | |
1212 | ||
1213 | while (isspace(*p)) p++; | |
1214 | if (*p == 0) | |
1215 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1216 | "missing rewrite replacement string"); | |
1217 | ||
1218 | next->flags = 0; | |
1219 | next->replacement = string_dequote(&p); | |
1220 | ||
1221 | while (*p != 0) switch (*p++) | |
1222 | { | |
1223 | case ' ': case '\t': break; | |
1224 | ||
1225 | case 'q': next->flags |= rewrite_quit; break; | |
1226 | case 'w': next->flags |= rewrite_whole; break; | |
1227 | ||
1228 | case 'h': next->flags |= rewrite_all_headers; break; | |
1229 | case 's': next->flags |= rewrite_sender; break; | |
1230 | case 'f': next->flags |= rewrite_from; break; | |
1231 | case 't': next->flags |= rewrite_to; break; | |
1232 | case 'c': next->flags |= rewrite_cc; break; | |
1233 | case 'b': next->flags |= rewrite_bcc; break; | |
1234 | case 'r': next->flags |= rewrite_replyto; break; | |
1235 | ||
1236 | case 'E': next->flags |= rewrite_all_envelope; break; | |
1237 | case 'F': next->flags |= rewrite_envfrom; break; | |
1238 | case 'T': next->flags |= rewrite_envto; break; | |
1239 | ||
1240 | case 'Q': next->flags |= rewrite_qualify; break; | |
1241 | case 'R': next->flags |= rewrite_repeat; break; | |
1242 | ||
1243 | case 'S': | |
1244 | next->flags |= rewrite_smtp; | |
1245 | if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0) | |
1246 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1247 | "rewrite rule has the S flag but is not a regular expression"); | |
1248 | break; | |
1249 | ||
1250 | default: | |
1251 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1252 | "unknown rewrite flag character '%c' " | |
1253 | "(could be missing quotes round replacement item)", p[-1]); | |
1254 | break; | |
1255 | } | |
1256 | ||
1257 | /* If no action flags are set, set all the "normal" rewrites. */ | |
1258 | ||
1259 | if ((next->flags & (rewrite_all | rewrite_smtp)) == 0) | |
1260 | next->flags |= isglobal? rewrite_all : rewrite_all_headers; | |
1261 | ||
1262 | /* Remember which exist, for optimization, and return the rule */ | |
1263 | ||
1264 | *existflags |= next->flags; | |
1265 | return next; | |
1266 | } | |
1267 | ||
1268 | ||
1269 | ||
1270 | ||
1271 | /************************************************* | |
1272 | * Read global rewrite information * | |
1273 | *************************************************/ | |
1274 | ||
1275 | /* Each line is a single rewrite rule; it is parsed into a control block | |
1276 | by readconf_one_rewrite(), and its flags are ORed into the global flag | |
1277 | word rewrite_existflags. */ | |
1278 | ||
1279 | void | |
1280 | readconf_rewrites(void) | |
1281 | { | |
1282 | rewrite_rule **chain = &global_rewrite_rules; | |
1283 | uschar *p; | |
1284 | ||
1285 | while ((p = get_config_line()) != NULL) | |
1286 | { | |
1287 | rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE); | |
1288 | *chain = next; | |
1289 | chain = &(next->next); | |
1290 | } | |
1291 | } | |
1292 | ||
1293 | ||
1294 | ||
1295 | /************************************************* | |
1296 | * Read a string * | |
1297 | *************************************************/ | |
1298 | ||
1299 | /* Strings are read into the normal store pool. As long we aren't too | |
1300 | near the end of the current block, the string will just use what is necessary | |
1301 | on the top of the stacking pool, because string_cat() uses the extension | |
1302 | mechanism. | |
1303 | ||
1304 | Argument: | |
1305 | s the rest of the input line | |
1306 | name the option name (for errors) | |
1307 | ||
1308 | Returns: pointer to the string | |
1309 | */ | |
1310 | ||
1311 | static uschar * | |
1312 | read_string(uschar *s, uschar *name) | |
1313 | { | |
1314 | uschar *yield; | |
1315 | uschar *ss; | |
1316 | ||
1317 | if (*s != '\"') return string_copy(s); | |
1318 | ||
1319 | ss = s; | |
1320 | yield = string_dequote(&s); | |
1321 | ||
1322 | if (s == ss+1 || s[-1] != '\"') | |
1323 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1324 | "missing quote at end of string value for %s", name); | |
1325 | ||
1326 | if (*s != 0) extra_chars_error(s, US"string value for ", name, US""); | |
1327 | ||
1328 | return yield; | |
1329 | } | |
1330 | ||
1331 | ||
1332 | /************************************************* | |
1333 | * Handle option line * | |
1334 | *************************************************/ | |
1335 | ||
1336 | /* This function is called from several places to process a line containing the | |
1337 | setting of an option. The first argument is the line to be decoded; it has been | |
1338 | checked not to be empty and not to start with '#'. Trailing newlines and white | |
1339 | space have been removed. The second argument is a pointer to the list of | |
1340 | variable names that are to be recognized, together with their types and | |
1341 | locations, and the third argument gives the number of entries in the list. | |
1342 | ||
1343 | The fourth argument is a pointer to a data block. If it is NULL, then the data | |
1344 | values in the options list are absolute addresses. Otherwise, they are byte | |
1345 | offsets in the data block. | |
1346 | ||
1347 | String option data may continue onto several lines; this function reads further | |
1348 | data from config_file if necessary. | |
1349 | ||
1350 | The yield of this function is normally zero. If a string continues onto | |
1351 | multiple lines, then the data value is permitted to be followed by a comma | |
1352 | or a semicolon (for use in drivers) and the yield is that character. | |
1353 | ||
1354 | Arguments: | |
1355 | buffer contains the configuration line to be handled | |
1356 | oltop points to the start of the relevant option list | |
1357 | last one more than the offset of the last item in the option list | |
1358 | data_block NULL when reading main options => data values in the option | |
1359 | list are absolute addresses; otherwise they are byte offsets | |
1360 | in data_block when they have opt_public set; otherwise | |
1361 | they are byte offsets in data_block->options_block. | |
1362 | unknown_txt format string to use in panic message for unknown option; | |
1363 | must contain %s for option name | |
1364 | if given as NULL, don't panic on unknown option | |
1365 | ||
1366 | Returns: TRUE if an option was read successfully, | |
1367 | FALSE false for an unknown option if unknown_txt == NULL, | |
1368 | otherwise panic and die on an unknown option | |
1369 | */ | |
1370 | ||
1371 | static BOOL | |
1372 | readconf_handle_option(uschar *buffer, optionlist *oltop, int last, | |
1373 | void *data_block, uschar *unknown_txt) | |
1374 | { | |
1375 | int ptr = 0; | |
1376 | int offset = 0; | |
1377 | int n, count, type, value; | |
1378 | int issecure = 0; | |
1379 | uid_t uid; | |
1380 | gid_t gid; | |
1381 | BOOL boolvalue = TRUE; | |
1382 | BOOL freesptr = TRUE; | |
1383 | optionlist *ol, *ol2; | |
1384 | struct passwd *pw; | |
1385 | void *reset_point; | |
1386 | int intbase = 0; | |
1387 | uschar *inttype = US""; | |
1388 | uschar *sptr; | |
1389 | uschar *s = buffer; | |
532be449 PP |
1390 | uschar *saved_condition, *strtemp; |
1391 | uschar **str_target; | |
059ec3d9 PH |
1392 | uschar name[64]; |
1393 | uschar name2[64]; | |
1394 | ||
1395 | /* There may be leading spaces; thereafter, we expect an option name starting | |
1396 | with a letter. */ | |
1397 | ||
1398 | while (isspace(*s)) s++; | |
1399 | if (!isalpha(*s)) | |
1400 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s); | |
1401 | ||
1402 | /* Read the name of the option, and skip any subsequent white space. If | |
1403 | it turns out that what we read was "hide", set the flag indicating that | |
1404 | this is a secure option, and loop to read the next word. */ | |
1405 | ||
1406 | for (n = 0; n < 2; n++) | |
1407 | { | |
1408 | while (isalnum(*s) || *s == '_') | |
1409 | { | |
1410 | if (ptr < sizeof(name)-1) name[ptr++] = *s; | |
1411 | s++; | |
1412 | } | |
1413 | name[ptr] = 0; | |
1414 | while (isspace(*s)) s++; | |
1415 | if (Ustrcmp(name, "hide") != 0) break; | |
1416 | issecure = opt_secure; | |
1417 | ptr = 0; | |
1418 | } | |
1419 | ||
1420 | /* Deal with "no_" or "not_" here for booleans */ | |
1421 | ||
1422 | if (Ustrncmp(name, "no_", 3) == 0) | |
1423 | { | |
1424 | boolvalue = FALSE; | |
1425 | offset = 3; | |
1426 | } | |
1427 | ||
1428 | if (Ustrncmp(name, "not_", 4) == 0) | |
1429 | { | |
1430 | boolvalue = FALSE; | |
1431 | offset = 4; | |
1432 | } | |
1433 | ||
1434 | /* Search the list for the given name. A non-existent name, or an option that | |
1435 | is set twice, is a disaster. */ | |
1436 | ||
1437 | ol = find_option(name + offset, oltop, last); | |
1438 | ||
1439 | if (ol == NULL) | |
1440 | { | |
1441 | if (unknown_txt == NULL) return FALSE; | |
1442 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name); | |
1443 | } | |
1444 | ||
846726c5 JH |
1445 | if ((ol->type & opt_set) && !(ol->type & (opt_rep_con | opt_rep_str))) |
1446 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1447 | "\"%s\" option set for the second time", name); | |
059ec3d9 PH |
1448 | |
1449 | ol->type |= opt_set | issecure; | |
1450 | type = ol->type & opt_mask; | |
1451 | ||
1452 | /* Types with data values must be followed by '='; the "no[t]_" prefix | |
1453 | applies only to boolean values. */ | |
1454 | ||
1455 | if (type < opt_bool || type > opt_bool_last) | |
1456 | { | |
1457 | if (offset != 0) | |
1458 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1459 | "negation prefix applied to a non-boolean option"); | |
1460 | if (*s == 0) | |
1461 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1462 | "unexpected end of line (data missing) after %s", name); | |
1463 | if (*s != '=') | |
1464 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name); | |
1465 | } | |
1466 | ||
1467 | /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and | |
1468 | true/false/yes/no, or, in the case of opt_expanded_bool, a general string that | |
1469 | ultimately expands to one of those values. */ | |
1470 | ||
1471 | else if (*s != 0 && (offset != 0 || *s != '=')) | |
1472 | extra_chars_error(s, US"boolean option ", name, US""); | |
1473 | ||
1474 | /* Skip white space after = */ | |
1475 | ||
1476 | if (*s == '=') while (isspace((*(++s)))); | |
1477 | ||
1478 | /* If there is a data block and the opt_public flag is not set, change | |
1479 | the data block pointer to the private options block. */ | |
1480 | ||
1481 | if (data_block != NULL && (ol->type & opt_public) == 0) | |
1482 | data_block = (void *)(((driver_instance *)data_block)->options_block); | |
1483 | ||
1484 | /* Now get the data according to the type. */ | |
1485 | ||
1486 | switch (type) | |
1487 | { | |
1488 | /* If a string value is not enclosed in quotes, it consists of | |
1489 | the rest of the current line, verbatim. Otherwise, string escapes | |
1490 | are processed. | |
1491 | ||
1492 | A transport is specified as a string, which is then looked up in the | |
1493 | list of transports. A search type is specified as one of a number of | |
1494 | known strings. | |
1495 | ||
1496 | A set or rewrite rules for a driver is specified as a string, which is | |
1497 | then parsed into a suitable chain of control blocks. | |
1498 | ||
1499 | Uids and gids are specified as strings which are then looked up in the | |
1500 | passwd file. Lists of uids and gids are similarly specified as colon- | |
1501 | separated strings. */ | |
1502 | ||
1503 | case opt_stringptr: | |
1504 | case opt_uid: | |
1505 | case opt_gid: | |
1506 | case opt_expand_uid: | |
1507 | case opt_expand_gid: | |
1508 | case opt_uidlist: | |
1509 | case opt_gidlist: | |
1510 | case opt_rewrite: | |
1511 | ||
1512 | reset_point = sptr = read_string(s, name); | |
1513 | ||
1514 | /* Having read a string, we now have several different ways of using it, | |
1515 | depending on the data type, so do another switch. If keeping the actual | |
1516 | string is not required (because it is interpreted), freesptr is set TRUE, | |
1517 | and at the end we reset the pool. */ | |
1518 | ||
1519 | switch (type) | |
1520 | { | |
1521 | /* If this was a string, set the variable to point to the new string, | |
1522 | and set the flag so its store isn't reclaimed. If it was a list of rewrite | |
1523 | rules, we still keep the string (for printing), and parse the rules into a | |
1524 | control block and flags word. */ | |
1525 | ||
1526 | case opt_stringptr: | |
532be449 PP |
1527 | if (data_block == NULL) |
1528 | str_target = (uschar **)(ol->value); | |
1529 | else | |
1530 | str_target = (uschar **)((uschar *)data_block + (long int)(ol->value)); | |
846726c5 | 1531 | if (ol->type & opt_rep_con) |
532be449 | 1532 | { |
6a8de854 PP |
1533 | /* We already have a condition, we're conducting a crude hack to let |
1534 | multiple condition rules be chained together, despite storing them in | |
1535 | text form. */ | |
532be449 | 1536 | saved_condition = *str_target; |
6a8de854 | 1537 | strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}", |
532be449 PP |
1538 | saved_condition, sptr); |
1539 | *str_target = string_copy_malloc(strtemp); | |
846726c5 JH |
1540 | /* TODO(pdp): there is a memory leak here and just below |
1541 | when we set 3 or more conditions; I still don't | |
1542 | understand the store mechanism enough to know | |
1543 | what's the safe way to free content from an earlier store. | |
6a8de854 PP |
1544 | AFAICT, stores stack, so freeing an early stored item also stores |
1545 | all data alloc'd after it. If we knew conditions were adjacent, | |
1546 | we could survive that, but we don't. So I *think* we need to take | |
1547 | another bit from opt_type to indicate "malloced"; this seems like | |
1548 | quite a hack, especially for this one case. It also means that | |
1549 | we can't ever reclaim the store from the *first* condition. | |
1550 | ||
1551 | Because we only do this once, near process start-up, I'm prepared to | |
1552 | let this slide for the time being, even though it rankles. */ | |
532be449 | 1553 | } |
846726c5 JH |
1554 | else if (*str_target && (ol->type & opt_rep_str)) |
1555 | { | |
1556 | uschar sep = Ustrncmp(name, "headers_add", 11)==0 ? '\n' : ':'; | |
1557 | saved_condition = *str_target; | |
d9d29e05 | 1558 | strtemp = saved_condition + Ustrlen(saved_condition)-1; |
846726c5 JH |
1559 | if (*strtemp == sep) *strtemp = 0; /* eliminate trailing list-sep */ |
1560 | strtemp = string_sprintf("%s%c%s", saved_condition, sep, sptr); | |
1561 | *str_target = string_copy_malloc(strtemp); | |
1562 | } | |
532be449 PP |
1563 | else |
1564 | { | |
1565 | *str_target = sptr; | |
1566 | freesptr = FALSE; | |
1567 | } | |
1568 | break; | |
1569 | ||
059ec3d9 PH |
1570 | case opt_rewrite: |
1571 | if (data_block == NULL) | |
1572 | *((uschar **)(ol->value)) = sptr; | |
1573 | else | |
1574 | *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr; | |
1575 | freesptr = FALSE; | |
1576 | if (type == opt_rewrite) | |
1577 | { | |
1578 | int sep = 0; | |
1579 | int *flagptr; | |
1580 | uschar *p = sptr; | |
1581 | rewrite_rule **chain; | |
1582 | optionlist *ol3; | |
1583 | ||
1584 | sprintf(CS name2, "*%.50s_rules", name); | |
1585 | ol2 = find_option(name2, oltop, last); | |
1586 | sprintf(CS name2, "*%.50s_flags", name); | |
1587 | ol3 = find_option(name2, oltop, last); | |
1588 | ||
1589 | if (ol2 == NULL || ol3 == NULL) | |
1590 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1591 | "rewrite rules not available for driver"); | |
1592 | ||
1593 | if (data_block == NULL) | |
1594 | { | |
1595 | chain = (rewrite_rule **)(ol2->value); | |
1596 | flagptr = (int *)(ol3->value); | |
1597 | } | |
1598 | else | |
1599 | { | |
1600 | chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value)); | |
1601 | flagptr = (int *)((uschar *)data_block + (long int)(ol3->value)); | |
1602 | } | |
1603 | ||
1604 | while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE)) | |
1605 | != NULL) | |
1606 | { | |
1607 | rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE); | |
1608 | *chain = next; | |
1609 | chain = &(next->next); | |
1610 | } | |
1611 | ||
1612 | if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0) | |
1613 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a " | |
1614 | "non-header rewrite - not allowed at transport time -"); | |
1615 | } | |
1616 | break; | |
1617 | ||
1618 | /* If it was an expanded uid, see if there is any expansion to be | |
1619 | done by checking for the presence of a $ character. If there is, save it | |
1620 | in the corresponding *expand_user option field. Otherwise, fall through | |
1621 | to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds | |
1622 | of data. */ | |
1623 | ||
1624 | case opt_expand_uid: | |
1625 | sprintf(CS name2, "*expand_%.50s", name); | |
1626 | ol2 = find_option(name2, oltop, last); | |
1627 | if (ol2 != NULL) | |
1628 | { | |
1629 | uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL; | |
1630 | ||
1631 | if (data_block == NULL) | |
1632 | *((uschar **)(ol2->value)) = ss; | |
1633 | else | |
1634 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss; | |
1635 | ||
1636 | if (ss != NULL) | |
1637 | { | |
1638 | *(get_set_flag(name, oltop, last, data_block)) = FALSE; | |
1639 | freesptr = FALSE; | |
1640 | break; | |
1641 | } | |
1642 | } | |
1643 | ||
1644 | /* Look up a fixed uid, and also make use of the corresponding gid | |
1645 | if a passwd entry is returned and the gid has not been set. */ | |
1646 | ||
1647 | case opt_uid: | |
1648 | if (!route_finduser(sptr, &pw, &uid)) | |
1649 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr); | |
1650 | if (data_block == NULL) | |
1651 | *((uid_t *)(ol->value)) = uid; | |
1652 | else | |
1653 | *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid; | |
1654 | ||
1655 | /* Set the flag indicating a fixed value is set */ | |
1656 | ||
1657 | *(get_set_flag(name, oltop, last, data_block)) = TRUE; | |
1658 | ||
1659 | /* Handle matching gid if we have a passwd entry: done by finding the | |
1660 | same name with terminating "user" changed to "group"; if not found, | |
1661 | ignore. Also ignore if the value is already set. */ | |
1662 | ||
1663 | if (pw == NULL) break; | |
1664 | Ustrcpy(name+Ustrlen(name)-4, "group"); | |
1665 | ol2 = find_option(name, oltop, last); | |
1666 | if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid || | |
1667 | (ol2->type & opt_mask) == opt_expand_gid)) | |
1668 | { | |
1669 | BOOL *set_flag = get_set_flag(name, oltop, last, data_block); | |
1670 | if (! *set_flag) | |
1671 | { | |
1672 | if (data_block == NULL) | |
1673 | *((gid_t *)(ol2->value)) = pw->pw_gid; | |
1674 | else | |
1675 | *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid; | |
1676 | *set_flag = TRUE; | |
1677 | } | |
1678 | } | |
1679 | break; | |
1680 | ||
1681 | /* If it was an expanded gid, see if there is any expansion to be | |
1682 | done by checking for the presence of a $ character. If there is, save it | |
1683 | in the corresponding *expand_user option field. Otherwise, fall through | |
1684 | to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds | |
1685 | of data. */ | |
1686 | ||
1687 | case opt_expand_gid: | |
1688 | sprintf(CS name2, "*expand_%.50s", name); | |
1689 | ol2 = find_option(name2, oltop, last); | |
1690 | if (ol2 != NULL) | |
1691 | { | |
1692 | uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL; | |
1693 | ||
1694 | if (data_block == NULL) | |
1695 | *((uschar **)(ol2->value)) = ss; | |
1696 | else | |
1697 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss; | |
1698 | ||
1699 | if (ss != NULL) | |
1700 | { | |
1701 | *(get_set_flag(name, oltop, last, data_block)) = FALSE; | |
1702 | freesptr = FALSE; | |
1703 | break; | |
1704 | } | |
1705 | } | |
1706 | ||
1707 | /* Handle freestanding gid */ | |
1708 | ||
1709 | case opt_gid: | |
1710 | if (!route_findgroup(sptr, &gid)) | |
1711 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr); | |
1712 | if (data_block == NULL) | |
1713 | *((gid_t *)(ol->value)) = gid; | |
1714 | else | |
1715 | *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid; | |
1716 | *(get_set_flag(name, oltop, last, data_block)) = TRUE; | |
1717 | break; | |
1718 | ||
1719 | /* If it was a uid list, look up each individual entry, and build | |
1720 | a vector of uids, with a count in the first element. Put the vector | |
1721 | in malloc store so we can free the string. (We are reading into | |
1722 | permanent store already.) */ | |
1723 | ||
1724 | case opt_uidlist: | |
1725 | { | |
1726 | int count = 1; | |
1727 | uid_t *list; | |
1728 | int ptr = 0; | |
0925ede6 PH |
1729 | uschar *p; |
1730 | uschar *op = expand_string (sptr); | |
1731 | ||
1732 | if (op == NULL) | |
1733 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s", | |
1734 | name, expand_string_message); | |
059ec3d9 | 1735 | |
0925ede6 | 1736 | p = op; |
059ec3d9 | 1737 | if (*p != 0) count++; |
0925ede6 | 1738 | while (*p != 0) if (*p++ == ':' && *p != 0) count++; |
059ec3d9 PH |
1739 | list = store_malloc(count*sizeof(uid_t)); |
1740 | list[ptr++] = (uid_t)(count - 1); | |
1741 | ||
1742 | if (data_block == NULL) | |
1743 | *((uid_t **)(ol->value)) = list; | |
1744 | else | |
1745 | *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list; | |
1746 | ||
0925ede6 | 1747 | p = op; |
059ec3d9 PH |
1748 | while (count-- > 1) |
1749 | { | |
1750 | int sep = 0; | |
1751 | (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE); | |
1752 | if (!route_finduser(big_buffer, NULL, &uid)) | |
1753 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", | |
1754 | big_buffer); | |
1755 | list[ptr++] = uid; | |
1756 | } | |
1757 | } | |
1758 | break; | |
1759 | ||
1760 | /* If it was a gid list, look up each individual entry, and build | |
1761 | a vector of gids, with a count in the first element. Put the vector | |
1762 | in malloc store so we can free the string. (We are reading into permanent | |
1763 | store already.) */ | |
1764 | ||
1765 | case opt_gidlist: | |
1766 | { | |
1767 | int count = 1; | |
1768 | gid_t *list; | |
1769 | int ptr = 0; | |
0925ede6 PH |
1770 | uschar *p; |
1771 | uschar *op = expand_string (sptr); | |
1772 | ||
1773 | if (op == NULL) | |
1774 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s", | |
1775 | name, expand_string_message); | |
059ec3d9 | 1776 | |
0925ede6 | 1777 | p = op; |
059ec3d9 | 1778 | if (*p != 0) count++; |
0925ede6 | 1779 | while (*p != 0) if (*p++ == ':' && *p != 0) count++; |
059ec3d9 PH |
1780 | list = store_malloc(count*sizeof(gid_t)); |
1781 | list[ptr++] = (gid_t)(count - 1); | |
1782 | ||
1783 | if (data_block == NULL) | |
1784 | *((gid_t **)(ol->value)) = list; | |
1785 | else | |
1786 | *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list; | |
1787 | ||
0925ede6 | 1788 | p = op; |
059ec3d9 PH |
1789 | while (count-- > 1) |
1790 | { | |
1791 | int sep = 0; | |
1792 | (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE); | |
1793 | if (!route_findgroup(big_buffer, &gid)) | |
1794 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", | |
1795 | big_buffer); | |
1796 | list[ptr++] = gid; | |
1797 | } | |
1798 | } | |
1799 | break; | |
1800 | } | |
1801 | ||
1802 | /* Release store if the value of the string doesn't need to be kept. */ | |
1803 | ||
1804 | if (freesptr) store_reset(reset_point); | |
1805 | break; | |
1806 | ||
1807 | /* Expanded boolean: if no characters follow, or if there are no dollar | |
1808 | characters, this is a fixed-valued boolean, and we fall through. Otherwise, | |
1809 | save the string for later expansion in the alternate place. */ | |
1810 | ||
1811 | case opt_expand_bool: | |
1812 | if (*s != 0 && Ustrchr(s, '$') != 0) | |
1813 | { | |
1814 | sprintf(CS name2, "*expand_%.50s", name); | |
1815 | ol2 = find_option(name2, oltop, last); | |
1816 | if (ol2 != NULL) | |
1817 | { | |
1818 | reset_point = sptr = read_string(s, name); | |
1819 | if (data_block == NULL) | |
1820 | *((uschar **)(ol2->value)) = sptr; | |
1821 | else | |
1822 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr; | |
1823 | freesptr = FALSE; | |
1824 | break; | |
1825 | } | |
1826 | } | |
1827 | /* Fall through */ | |
1828 | ||
1829 | /* Boolean: if no characters follow, the value is boolvalue. Otherwise | |
1830 | look for yes/not/true/false. Some booleans are stored in a single bit in | |
1831 | a single int. There's a special fudge for verify settings; without a suffix | |
1832 | they set both xx_sender and xx_recipient. The table points to the sender | |
1833 | value; search subsequently for the recipient. There's another special case: | |
1834 | opt_bool_set also notes when a boolean has been set. */ | |
1835 | ||
1836 | case opt_bool: | |
1837 | case opt_bit: | |
1838 | case opt_bool_verify: | |
1839 | case opt_bool_set: | |
1840 | if (*s != 0) | |
1841 | { | |
1842 | s = readconf_readname(name2, 64, s); | |
1843 | if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0) | |
1844 | boolvalue = TRUE; | |
1845 | else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0) | |
1846 | boolvalue = FALSE; | |
1847 | else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1848 | "\"%s\" is not a valid value for the \"%s\" option", name2, name); | |
1849 | if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2), | |
1850 | US"for boolean option ", name); | |
1851 | } | |
1852 | ||
1853 | /* Handle single-bit type. */ | |
1854 | ||
1855 | if (type == opt_bit) | |
1856 | { | |
1857 | int bit = 1 << ((ol->type >> 16) & 31); | |
1858 | int *ptr = (data_block == NULL)? | |
1859 | (int *)(ol->value) : | |
1860 | (int *)((uschar *)data_block + (long int)ol->value); | |
1861 | if (boolvalue) *ptr |= bit; else *ptr &= ~bit; | |
1862 | break; | |
1863 | } | |
1864 | ||
1865 | /* Handle full BOOL types */ | |
1866 | ||
1867 | if (data_block == NULL) | |
1868 | *((BOOL *)(ol->value)) = boolvalue; | |
1869 | else | |
1870 | *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue; | |
1871 | ||
1872 | /* Verify fudge */ | |
1873 | ||
1874 | if (type == opt_bool_verify) | |
1875 | { | |
1876 | sprintf(CS name2, "%.50s_recipient", name + offset); | |
1877 | ol2 = find_option(name2, oltop, last); | |
1878 | if (ol2 != NULL) | |
1879 | { | |
1880 | if (data_block == NULL) | |
1881 | *((BOOL *)(ol2->value)) = boolvalue; | |
1882 | else | |
1883 | *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue; | |
1884 | } | |
1885 | } | |
1886 | ||
1887 | /* Note that opt_bool_set type is set, if there is somewhere to do so */ | |
1888 | ||
1889 | else if (type == opt_bool_set) | |
1890 | { | |
1891 | sprintf(CS name2, "*set_%.50s", name + offset); | |
1892 | ol2 = find_option(name2, oltop, last); | |
1893 | if (ol2 != NULL) | |
1894 | { | |
1895 | if (data_block == NULL) | |
1896 | *((BOOL *)(ol2->value)) = TRUE; | |
1897 | else | |
1898 | *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE; | |
1899 | } | |
1900 | } | |
1901 | break; | |
1902 | ||
1903 | /* Octal integer */ | |
1904 | ||
1905 | case opt_octint: | |
1906 | intbase = 8; | |
1907 | inttype = US"octal "; | |
1908 | ||
1909 | /* Integer: a simple(ish) case; allow octal and hex formats, and | |
1910 | suffixes K and M. The different types affect output, not input. */ | |
1911 | ||
1912 | case opt_mkint: | |
1913 | case opt_int: | |
1914 | { | |
1915 | uschar *endptr; | |
7e8d92ba PH |
1916 | long int lvalue; |
1917 | ||
059ec3d9 | 1918 | errno = 0; |
7e8d92ba | 1919 | lvalue = strtol(CS s, CSS &endptr, intbase); |
059ec3d9 PH |
1920 | |
1921 | if (endptr == s) | |
1922 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s", | |
1923 | inttype, name); | |
1924 | ||
1925 | if (errno != ERANGE) | |
1926 | { | |
1927 | if (tolower(*endptr) == 'k') | |
1928 | { | |
7e8d92ba PH |
1929 | if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE; |
1930 | else lvalue *= 1024; | |
059ec3d9 PH |
1931 | endptr++; |
1932 | } | |
1933 | else if (tolower(*endptr) == 'm') | |
1934 | { | |
7e8d92ba | 1935 | if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024)) |
059ec3d9 | 1936 | errno = ERANGE; |
7e8d92ba | 1937 | else lvalue *= 1024*1024; |
059ec3d9 PH |
1938 | endptr++; |
1939 | } | |
1940 | } | |
1941 | ||
7e8d92ba PH |
1942 | if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN) |
1943 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1944 | "absolute value of integer \"%s\" is too large (overflow)", s); | |
059ec3d9 PH |
1945 | |
1946 | while (isspace(*endptr)) endptr++; | |
1947 | if (*endptr != 0) | |
1948 | extra_chars_error(endptr, inttype, US"integer value for ", name); | |
7e8d92ba PH |
1949 | |
1950 | value = (int)lvalue; | |
059ec3d9 PH |
1951 | } |
1952 | ||
1953 | if (data_block == NULL) | |
1954 | *((int *)(ol->value)) = value; | |
1955 | else | |
1956 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
1957 | break; | |
1958 | ||
1959 | /* Integer held in K: again, allow octal and hex formats, and suffixes K and | |
1960 | M. */ | |
1961 | ||
1962 | case opt_Kint: | |
1963 | { | |
1964 | uschar *endptr; | |
1965 | errno = 0; | |
1966 | value = strtol(CS s, CSS &endptr, intbase); | |
1967 | ||
1968 | if (endptr == s) | |
1969 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s", | |
1970 | inttype, name); | |
1971 | ||
1972 | if (errno != ERANGE) | |
1973 | { | |
1974 | if (tolower(*endptr) == 'm') | |
1975 | { | |
1976 | if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE; | |
1977 | else value *= 1024; | |
1978 | endptr++; | |
1979 | } | |
1980 | else if (tolower(*endptr) == 'k') | |
1981 | { | |
1982 | endptr++; | |
1983 | } | |
1984 | else | |
1985 | { | |
1986 | value = (value + 512)/1024; | |
1987 | } | |
1988 | } | |
1989 | ||
1990 | if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1991 | "absolute value of integer \"%s\" is too large (overflow)", s); | |
1992 | ||
1993 | while (isspace(*endptr)) endptr++; | |
1994 | if (*endptr != 0) | |
1995 | extra_chars_error(endptr, inttype, US"integer value for ", name); | |
1996 | } | |
1997 | ||
1998 | if (data_block == NULL) | |
1999 | *((int *)(ol->value)) = value; | |
2000 | else | |
2001 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
2002 | break; | |
2003 | ||
2004 | /* Fixed-point number: held to 3 decimal places. */ | |
2005 | ||
2006 | case opt_fixed: | |
2007 | if (sscanf(CS s, "%d%n", &value, &count) != 1) | |
2008 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2009 | "fixed-point number expected for %s", name); | |
2010 | ||
2011 | if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2012 | "integer \"%s\" is too large (overflow)", s); | |
2013 | ||
2014 | value *= 1000; | |
2015 | ||
2016 | if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2017 | "integer \"%s\" is too large (overflow)", s); | |
2018 | ||
2019 | if (s[count] == '.') | |
2020 | { | |
2021 | int d = 100; | |
2022 | while (isdigit(s[++count])) | |
2023 | { | |
2024 | value += (s[count] - '0') * d; | |
2025 | d /= 10; | |
2026 | } | |
2027 | } | |
2028 | ||
2029 | while (isspace(s[count])) count++; | |
2030 | ||
2031 | if (s[count] != 0) | |
2032 | extra_chars_error(s+count, US"fixed-point value for ", name, US""); | |
2033 | ||
2034 | if (data_block == NULL) | |
2035 | *((int *)(ol->value)) = value; | |
2036 | else | |
2037 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
2038 | break; | |
2039 | ||
2040 | /* There's a special routine to read time values. */ | |
2041 | ||
2042 | case opt_time: | |
2043 | value = readconf_readtime(s, 0, FALSE); | |
2044 | if (value < 0) | |
2045 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s", | |
2046 | name); | |
2047 | if (data_block == NULL) | |
2048 | *((int *)(ol->value)) = value; | |
2049 | else | |
2050 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
2051 | break; | |
2052 | ||
2053 | /* A time list is a list of colon-separated times, with the first | |
2054 | element holding the size of the list and the second the number of | |
2055 | entries used. */ | |
2056 | ||
2057 | case opt_timelist: | |
2058 | { | |
2059 | int count = 0; | |
2060 | int *list = (data_block == NULL)? | |
2061 | (int *)(ol->value) : | |
2062 | (int *)((uschar *)data_block + (long int)(ol->value)); | |
2063 | ||
2064 | if (*s != 0) for (count = 1; count <= list[0] - 2; count++) | |
2065 | { | |
2066 | int terminator = 0; | |
2067 | uschar *snext = Ustrchr(s, ':'); | |
2068 | if (snext != NULL) | |
2069 | { | |
2070 | uschar *ss = snext; | |
2071 | while (ss > s && isspace(ss[-1])) ss--; | |
2072 | terminator = *ss; | |
2073 | } | |
2074 | value = readconf_readtime(s, terminator, FALSE); | |
2075 | if (value < 0) | |
2076 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s", | |
2077 | name); | |
2078 | if (count > 1 && value <= list[count]) | |
2079 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2080 | "time value out of order for %s", name); | |
2081 | list[count+1] = value; | |
2082 | if (snext == NULL) break; | |
2083 | s = snext + 1; | |
2084 | while (isspace(*s)) s++; | |
2085 | } | |
2086 | ||
2087 | if (count > list[0] - 2) | |
2088 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s", | |
2089 | name); | |
2090 | if (count > 0 && list[2] == 0) count = 0; | |
2091 | list[1] = count; | |
2092 | } | |
2093 | ||
2094 | break; | |
2095 | } | |
2096 | ||
2097 | return TRUE; | |
2098 | } | |
2099 | ||
2100 | ||
2101 | ||
2102 | /************************************************* | |
2103 | * Print a time value * | |
2104 | *************************************************/ | |
2105 | ||
2106 | /* | |
2107 | Argument: a time value in seconds | |
2108 | Returns: pointer to a fixed buffer containing the time as a string, | |
2109 | in readconf_readtime() format | |
2110 | */ | |
2111 | ||
2112 | uschar * | |
2113 | readconf_printtime(int t) | |
2114 | { | |
2115 | int s, m, h, d, w; | |
2116 | uschar *p = time_buffer; | |
2117 | ||
ea49d0e1 PH |
2118 | if (t < 0) |
2119 | { | |
2120 | *p++ = '-'; | |
2121 | t = -t; | |
2122 | } | |
2123 | ||
059ec3d9 PH |
2124 | s = t % 60; |
2125 | t /= 60; | |
2126 | m = t % 60; | |
2127 | t /= 60; | |
2128 | h = t % 24; | |
2129 | t /= 24; | |
2130 | d = t % 7; | |
2131 | w = t/7; | |
2132 | ||
2133 | if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; } | |
2134 | if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; } | |
2135 | if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; } | |
2136 | if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; } | |
2137 | if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s); | |
2138 | ||
2139 | return time_buffer; | |
2140 | } | |
2141 | ||
2142 | ||
2143 | ||
2144 | /************************************************* | |
2145 | * Print an individual option value * | |
2146 | *************************************************/ | |
2147 | ||
2148 | /* This is used by the -bP option, so prints to the standard output. | |
2149 | The entire options list is passed in as an argument, because some options come | |
2150 | in pairs - typically uid/gid settings, which can either be explicit numerical | |
2151 | values, or strings to be expanded later. If the numerical value is unset, | |
2152 | search for "*expand_<name>" to see if there is a string equivalent. | |
2153 | ||
2154 | Arguments: | |
2155 | ol option entry, or NULL for an unknown option | |
2156 | name option name | |
2157 | options_block NULL for main configuration options; otherwise points to | |
2158 | a driver block; if the option doesn't have opt_public | |
2159 | set, then options_block->options_block is where the item | |
2160 | resides. | |
2161 | oltop points to the option list in which ol exists | |
2162 | last one more than the offset of the last entry in optop | |
12f69989 | 2163 | no_labels do not show "foo = " at the start. |
059ec3d9 PH |
2164 | |
2165 | Returns: nothing | |
2166 | */ | |
2167 | ||
2168 | static void | |
2169 | print_ol(optionlist *ol, uschar *name, void *options_block, | |
12f69989 | 2170 | optionlist *oltop, int last, BOOL no_labels) |
059ec3d9 PH |
2171 | { |
2172 | struct passwd *pw; | |
2173 | struct group *gr; | |
2174 | optionlist *ol2; | |
2175 | void *value; | |
2176 | uid_t *uidlist; | |
2177 | gid_t *gidlist; | |
2178 | uschar *s; | |
2179 | uschar name2[64]; | |
2180 | ||
2181 | if (ol == NULL) | |
2182 | { | |
2183 | printf("%s is not a known option\n", name); | |
2184 | return; | |
2185 | } | |
2186 | ||
2187 | /* Non-admin callers cannot see options that have been flagged secure by the | |
2188 | "hide" prefix. */ | |
2189 | ||
2190 | if (!admin_user && (ol->type & opt_secure) != 0) | |
2191 | { | |
12f69989 PP |
2192 | const char * const hidden = "<value not displayable>"; |
2193 | if (no_labels) | |
2194 | printf("%s\n", hidden); | |
2195 | else | |
2196 | printf("%s = %s\n", name, hidden); | |
059ec3d9 PH |
2197 | return; |
2198 | } | |
2199 | ||
2200 | /* Else show the value of the option */ | |
2201 | ||
2202 | value = ol->value; | |
2203 | if (options_block != NULL) | |
2204 | { | |
2205 | if ((ol->type & opt_public) == 0) | |
2206 | options_block = (void *)(((driver_instance *)options_block)->options_block); | |
2207 | value = (void *)((uschar *)options_block + (long int)value); | |
2208 | } | |
2209 | ||
2210 | switch(ol->type & opt_mask) | |
2211 | { | |
2212 | case opt_stringptr: | |
2213 | case opt_rewrite: /* Show the text value */ | |
2214 | s = *((uschar **)value); | |
12f69989 PP |
2215 | if (!no_labels) printf("%s = ", name); |
2216 | printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE)); | |
059ec3d9 PH |
2217 | break; |
2218 | ||
2219 | case opt_int: | |
12f69989 PP |
2220 | if (!no_labels) printf("%s = ", name); |
2221 | printf("%d\n", *((int *)value)); | |
059ec3d9 PH |
2222 | break; |
2223 | ||
2224 | case opt_mkint: | |
2225 | { | |
2226 | int x = *((int *)value); | |
2227 | if (x != 0 && (x & 1023) == 0) | |
2228 | { | |
2229 | int c = 'K'; | |
2230 | x >>= 10; | |
2231 | if ((x & 1023) == 0) | |
2232 | { | |
2233 | c = 'M'; | |
2234 | x >>= 10; | |
2235 | } | |
12f69989 PP |
2236 | if (!no_labels) printf("%s = ", name); |
2237 | printf("%d%c\n", x, c); | |
2238 | } | |
2239 | else | |
2240 | { | |
2241 | if (!no_labels) printf("%s = ", name); | |
2242 | printf("%d\n", x); | |
059ec3d9 | 2243 | } |
059ec3d9 PH |
2244 | } |
2245 | break; | |
2246 | ||
2247 | case opt_Kint: | |
2248 | { | |
2249 | int x = *((int *)value); | |
12f69989 PP |
2250 | if (!no_labels) printf("%s = ", name); |
2251 | if (x == 0) printf("0\n"); | |
2252 | else if ((x & 1023) == 0) printf("%dM\n", x >> 10); | |
2253 | else printf("%dK\n", x); | |
059ec3d9 PH |
2254 | } |
2255 | break; | |
2256 | ||
2257 | case opt_octint: | |
12f69989 PP |
2258 | if (!no_labels) printf("%s = ", name); |
2259 | printf("%#o\n", *((int *)value)); | |
059ec3d9 PH |
2260 | break; |
2261 | ||
2262 | /* Can be negative only when "unset", in which case integer */ | |
2263 | ||
2264 | case opt_fixed: | |
2265 | { | |
2266 | int x = *((int *)value); | |
2267 | int f = x % 1000; | |
2268 | int d = 100; | |
2269 | if (x < 0) printf("%s =\n", name); else | |
2270 | { | |
12f69989 PP |
2271 | if (!no_labels) printf("%s = ", name); |
2272 | printf("%d.", x/1000); | |
059ec3d9 PH |
2273 | do |
2274 | { | |
2275 | printf("%d", f/d); | |
2276 | f %= d; | |
2277 | d /= 10; | |
2278 | } | |
2279 | while (f != 0); | |
2280 | printf("\n"); | |
2281 | } | |
2282 | } | |
2283 | break; | |
2284 | ||
2285 | /* If the numerical value is unset, try for the string value */ | |
2286 | ||
2287 | case opt_expand_uid: | |
2288 | if (! *get_set_flag(name, oltop, last, options_block)) | |
2289 | { | |
2290 | sprintf(CS name2, "*expand_%.50s", name); | |
2291 | ol2 = find_option(name2, oltop, last); | |
2292 | if (ol2 != NULL) | |
2293 | { | |
2294 | void *value2 = ol2->value; | |
2295 | if (options_block != NULL) | |
2296 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2297 | s = *((uschar **)value2); | |
12f69989 PP |
2298 | if (!no_labels) printf("%s = ", name); |
2299 | printf("%s\n", (s == NULL)? US"" : string_printing(s)); | |
059ec3d9 PH |
2300 | break; |
2301 | } | |
2302 | } | |
2303 | ||
2304 | /* Else fall through */ | |
2305 | ||
2306 | case opt_uid: | |
12f69989 | 2307 | if (!no_labels) printf("%s = ", name); |
059ec3d9 | 2308 | if (! *get_set_flag(name, oltop, last, options_block)) |
12f69989 | 2309 | printf("\n"); |
059ec3d9 PH |
2310 | else |
2311 | { | |
2312 | pw = getpwuid(*((uid_t *)value)); | |
2313 | if (pw == NULL) | |
12f69989 PP |
2314 | printf("%ld\n", (long int)(*((uid_t *)value))); |
2315 | else printf("%s\n", pw->pw_name); | |
059ec3d9 PH |
2316 | } |
2317 | break; | |
2318 | ||
2319 | /* If the numerical value is unset, try for the string value */ | |
2320 | ||
2321 | case opt_expand_gid: | |
2322 | if (! *get_set_flag(name, oltop, last, options_block)) | |
2323 | { | |
2324 | sprintf(CS name2, "*expand_%.50s", name); | |
2325 | ol2 = find_option(name2, oltop, last); | |
2326 | if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr) | |
2327 | { | |
2328 | void *value2 = ol2->value; | |
2329 | if (options_block != NULL) | |
2330 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2331 | s = *((uschar **)value2); | |
12f69989 PP |
2332 | if (!no_labels) printf("%s = ", name); |
2333 | printf("%s\n", (s == NULL)? US"" : string_printing(s)); | |
059ec3d9 PH |
2334 | break; |
2335 | } | |
2336 | } | |
2337 | ||
2338 | /* Else fall through */ | |
2339 | ||
2340 | case opt_gid: | |
12f69989 | 2341 | if (!no_labels) printf("%s = ", name); |
059ec3d9 | 2342 | if (! *get_set_flag(name, oltop, last, options_block)) |
12f69989 | 2343 | printf("\n"); |
059ec3d9 PH |
2344 | else |
2345 | { | |
2346 | gr = getgrgid(*((int *)value)); | |
2347 | if (gr == NULL) | |
12f69989 PP |
2348 | printf("%ld\n", (long int)(*((int *)value))); |
2349 | else printf("%s\n", gr->gr_name); | |
059ec3d9 PH |
2350 | } |
2351 | break; | |
2352 | ||
2353 | case opt_uidlist: | |
2354 | uidlist = *((uid_t **)value); | |
12f69989 | 2355 | if (!no_labels) printf("%s =", name); |
059ec3d9 PH |
2356 | if (uidlist != NULL) |
2357 | { | |
2358 | int i; | |
2359 | uschar sep = ' '; | |
12f69989 | 2360 | if (no_labels) sep = '\0'; |
059ec3d9 PH |
2361 | for (i = 1; i <= (int)(uidlist[0]); i++) |
2362 | { | |
2363 | uschar *name = NULL; | |
2364 | pw = getpwuid(uidlist[i]); | |
2365 | if (pw != NULL) name = US pw->pw_name; | |
12f69989 PP |
2366 | if (sep != '\0') printf("%c", sep); |
2367 | if (name != NULL) printf("%s", name); | |
2368 | else printf("%ld", (long int)(uidlist[i])); | |
059ec3d9 PH |
2369 | sep = ':'; |
2370 | } | |
2371 | } | |
2372 | printf("\n"); | |
2373 | break; | |
2374 | ||
2375 | case opt_gidlist: | |
2376 | gidlist = *((gid_t **)value); | |
12f69989 | 2377 | if (!no_labels) printf("%s =", name); |
059ec3d9 PH |
2378 | if (gidlist != NULL) |
2379 | { | |
2380 | int i; | |
2381 | uschar sep = ' '; | |
12f69989 | 2382 | if (no_labels) sep = '\0'; |
059ec3d9 PH |
2383 | for (i = 1; i <= (int)(gidlist[0]); i++) |
2384 | { | |
2385 | uschar *name = NULL; | |
2386 | gr = getgrgid(gidlist[i]); | |
2387 | if (gr != NULL) name = US gr->gr_name; | |
12f69989 PP |
2388 | if (sep != '\0') printf("%c", sep); |
2389 | if (name != NULL) printf("%s", name); | |
2390 | else printf("%ld", (long int)(gidlist[i])); | |
059ec3d9 PH |
2391 | sep = ':'; |
2392 | } | |
2393 | } | |
2394 | printf("\n"); | |
2395 | break; | |
2396 | ||
2397 | case opt_time: | |
12f69989 PP |
2398 | if (!no_labels) printf("%s = ", name); |
2399 | printf("%s\n", readconf_printtime(*((int *)value))); | |
059ec3d9 PH |
2400 | break; |
2401 | ||
2402 | case opt_timelist: | |
2403 | { | |
2404 | int i; | |
2405 | int *list = (int *)value; | |
12f69989 | 2406 | if (!no_labels) printf("%s = ", name); |
059ec3d9 PH |
2407 | for (i = 0; i < list[1]; i++) |
2408 | printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2])); | |
2409 | printf("\n"); | |
2410 | } | |
2411 | break; | |
2412 | ||
2413 | case opt_bit: | |
2414 | printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))? | |
2415 | "" : "no_", name); | |
2416 | break; | |
2417 | ||
2418 | case opt_expand_bool: | |
2419 | sprintf(CS name2, "*expand_%.50s", name); | |
2420 | ol2 = find_option(name2, oltop, last); | |
2421 | if (ol2 != NULL && ol2->value != NULL) | |
2422 | { | |
2423 | void *value2 = ol2->value; | |
2424 | if (options_block != NULL) | |
2425 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2426 | s = *((uschar **)value2); | |
2427 | if (s != NULL) | |
2428 | { | |
12f69989 PP |
2429 | if (!no_labels) printf("%s = ", name); |
2430 | printf("%s\n", string_printing(s)); | |
059ec3d9 PH |
2431 | break; |
2432 | } | |
2433 | /* s == NULL => string not set; fall through */ | |
2434 | } | |
2435 | ||
2436 | /* Fall through */ | |
2437 | ||
2438 | case opt_bool: | |
2439 | case opt_bool_verify: | |
2440 | case opt_bool_set: | |
2441 | printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name); | |
2442 | break; | |
2443 | } | |
2444 | } | |
2445 | ||
2446 | ||
2447 | ||
2448 | /************************************************* | |
2449 | * Print value from main configuration * | |
2450 | *************************************************/ | |
2451 | ||
2452 | /* This function, called as a result of encountering the -bP option, | |
2453 | causes the value of any main configuration variable to be output if the | |
2454 | second argument is NULL. There are some special values: | |
2455 | ||
2456 | all print all main configuration options | |
2457 | configure_file print the name of the configuration file | |
2458 | routers print the routers' configurations | |
2459 | transports print the transports' configuration | |
2460 | authenticators print the authenticators' configuration | |
5d9c27ec | 2461 | macros print the macros' configuration |
059ec3d9 PH |
2462 | router_list print a list of router names |
2463 | transport_list print a list of transport names | |
2464 | authenticator_list print a list of authentication mechanism names | |
5d9c27ec | 2465 | macro_list print a list of macro names |
059ec3d9 PH |
2466 | +name print a named list item |
2467 | local_scan print the local_scan options | |
2468 | ||
5d9c27ec TK |
2469 | If the second argument is not NULL, it must be one of "router", "transport", |
2470 | "authenticator" or "macro" in which case the first argument identifies the | |
2471 | driver whose options are to be printed. | |
059ec3d9 PH |
2472 | |
2473 | Arguments: | |
2474 | name option name if type == NULL; else driver name | |
2475 | type NULL or driver type name, as described above | |
12f69989 | 2476 | no_labels avoid the "foo = " at the start of an item |
059ec3d9 PH |
2477 | |
2478 | Returns: nothing | |
2479 | */ | |
2480 | ||
2481 | void | |
12f69989 | 2482 | readconf_print(uschar *name, uschar *type, BOOL no_labels) |
059ec3d9 PH |
2483 | { |
2484 | BOOL names_only = FALSE; | |
2485 | optionlist *ol; | |
2486 | optionlist *ol2 = NULL; | |
2487 | driver_instance *d = NULL; | |
5d9c27ec | 2488 | macro_item *m; |
059ec3d9 PH |
2489 | int size = 0; |
2490 | ||
2491 | if (type == NULL) | |
2492 | { | |
2493 | if (*name == '+') | |
2494 | { | |
2495 | int i; | |
2496 | tree_node *t; | |
2497 | BOOL found = FALSE; | |
2498 | static uschar *types[] = { US"address", US"domain", US"host", | |
2499 | US"localpart" }; | |
2500 | static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor, | |
2501 | &hostlist_anchor, &localpartlist_anchor }; | |
2502 | ||
2503 | for (i = 0; i < 4; i++) | |
2504 | { | |
2505 | t = tree_search(*(anchors[i]), name+1); | |
2506 | if (t != NULL) | |
2507 | { | |
2508 | found = TRUE; | |
12f69989 PP |
2509 | if (no_labels) |
2510 | printf("%s\n", ((namedlist_block *)(t->data.ptr))->string); | |
2511 | else | |
2512 | printf("%slist %s = %s\n", types[i], name+1, | |
2513 | ((namedlist_block *)(t->data.ptr))->string); | |
059ec3d9 PH |
2514 | } |
2515 | } | |
2516 | ||
2517 | if (!found) | |
2518 | printf("no address, domain, host, or local part list called \"%s\" " | |
2519 | "exists\n", name+1); | |
2520 | ||
2521 | return; | |
2522 | } | |
2523 | ||
2524 | if (Ustrcmp(name, "configure_file") == 0) | |
2525 | { | |
2526 | printf("%s\n", CS config_main_filename); | |
2527 | return; | |
2528 | } | |
2529 | ||
2530 | if (Ustrcmp(name, "all") == 0) | |
2531 | { | |
2532 | for (ol = optionlist_config; | |
2533 | ol < optionlist_config + optionlist_config_size; ol++) | |
2534 | { | |
2535 | if ((ol->type & opt_hidden) == 0) | |
12f69989 PP |
2536 | print_ol(ol, US ol->name, NULL, |
2537 | optionlist_config, optionlist_config_size, | |
2538 | no_labels); | |
059ec3d9 PH |
2539 | } |
2540 | return; | |
2541 | } | |
2542 | ||
2543 | if (Ustrcmp(name, "local_scan") == 0) | |
2544 | { | |
2545 | #ifndef LOCAL_SCAN_HAS_OPTIONS | |
2546 | printf("local_scan() options are not supported\n"); | |
2547 | #else | |
2548 | for (ol = local_scan_options; | |
2549 | ol < local_scan_options + local_scan_options_count; ol++) | |
2550 | { | |
2551 | print_ol(ol, US ol->name, NULL, local_scan_options, | |
12f69989 | 2552 | local_scan_options_count, no_labels); |
059ec3d9 PH |
2553 | } |
2554 | #endif | |
2555 | return; | |
2556 | } | |
2557 | ||
2558 | if (Ustrcmp(name, "routers") == 0) | |
2559 | { | |
2560 | type = US"router"; | |
2561 | name = NULL; | |
2562 | } | |
2563 | else if (Ustrcmp(name, "transports") == 0) | |
2564 | { | |
2565 | type = US"transport"; | |
2566 | name = NULL; | |
2567 | } | |
2568 | ||
2569 | else if (Ustrcmp(name, "authenticators") == 0) | |
2570 | { | |
2571 | type = US"authenticator"; | |
2572 | name = NULL; | |
2573 | } | |
2574 | ||
5d9c27ec | 2575 | else if (Ustrcmp(name, "macros") == 0) |
059ec3d9 | 2576 | { |
5d9c27ec | 2577 | type = US"macro"; |
059ec3d9 | 2578 | name = NULL; |
059ec3d9 PH |
2579 | } |
2580 | ||
2581 | else if (Ustrcmp(name, "router_list") == 0) | |
2582 | { | |
2583 | type = US"router"; | |
2584 | name = NULL; | |
2585 | names_only = TRUE; | |
2586 | } | |
5d9c27ec | 2587 | |
059ec3d9 PH |
2588 | else if (Ustrcmp(name, "transport_list") == 0) |
2589 | { | |
2590 | type = US"transport"; | |
2591 | name = NULL; | |
2592 | names_only = TRUE; | |
2593 | } | |
5d9c27ec TK |
2594 | |
2595 | else if (Ustrcmp(name, "authenticator_list") == 0) | |
2596 | { | |
2597 | type = US"authenticator"; | |
2598 | name = NULL; | |
2599 | names_only = TRUE; | |
2600 | } | |
2601 | ||
2602 | else if (Ustrcmp(name, "macro_list") == 0) | |
2603 | { | |
2604 | type = US"macro"; | |
2605 | name = NULL; | |
2606 | names_only = TRUE; | |
2607 | } | |
2608 | ||
059ec3d9 PH |
2609 | else |
2610 | { | |
2611 | print_ol(find_option(name, optionlist_config, optionlist_config_size), | |
12f69989 | 2612 | name, NULL, optionlist_config, optionlist_config_size, no_labels); |
059ec3d9 PH |
2613 | return; |
2614 | } | |
2615 | } | |
2616 | ||
2617 | /* Handle the options for a router or transport. Skip options that are flagged | |
2618 | as hidden. Some of these are options with names starting with '*', used for | |
2619 | internal alternative representations of other options (which the printing | |
2620 | function will sort out). Others are synonyms kept for backward compatibility. | |
2621 | */ | |
2622 | ||
2623 | if (Ustrcmp(type, "router") == 0) | |
2624 | { | |
2625 | d = (driver_instance *)routers; | |
2626 | ol2 = optionlist_routers; | |
2627 | size = optionlist_routers_size; | |
2628 | } | |
2629 | else if (Ustrcmp(type, "transport") == 0) | |
2630 | { | |
2631 | d = (driver_instance *)transports; | |
2632 | ol2 = optionlist_transports; | |
2633 | size = optionlist_transports_size; | |
2634 | } | |
2635 | else if (Ustrcmp(type, "authenticator") == 0) | |
2636 | { | |
2637 | d = (driver_instance *)auths; | |
2638 | ol2 = optionlist_auths; | |
2639 | size = optionlist_auths_size; | |
2640 | } | |
2641 | ||
5d9c27ec TK |
2642 | else if (Ustrcmp(type, "macro") == 0) |
2643 | { | |
2644 | /* People store passwords in macros and they were previously not available | |
2645 | for printing. So we have an admin_users restriction. */ | |
2646 | if (!admin_user) | |
2647 | { | |
2648 | fprintf(stderr, "exim: permission denied\n"); | |
2649 | exit(EXIT_FAILURE); | |
2650 | } | |
2651 | for (m = macros; m != NULL; m = m->next) | |
2652 | { | |
2653 | if (name == NULL || Ustrcmp(name, m->name) == 0) | |
2654 | { | |
2655 | if (names_only) | |
2656 | printf("%s\n", CS m->name); | |
2657 | else | |
2658 | printf("%s=%s\n", CS m->name, CS m->replacement); | |
2659 | if (name != NULL) | |
2660 | return; | |
2661 | } | |
2662 | } | |
2663 | if (name != NULL) | |
2664 | printf("%s %s not found\n", type, name); | |
2665 | return; | |
2666 | } | |
2667 | ||
059ec3d9 PH |
2668 | if (names_only) |
2669 | { | |
2670 | for (; d != NULL; d = d->next) printf("%s\n", CS d->name); | |
2671 | return; | |
2672 | } | |
2673 | ||
2674 | /* Either search for a given driver, or print all of them */ | |
2675 | ||
2676 | for (; d != NULL; d = d->next) | |
2677 | { | |
2678 | if (name == NULL) | |
2679 | printf("\n%s %s:\n", d->name, type); | |
2680 | else if (Ustrcmp(d->name, name) != 0) continue; | |
2681 | ||
2682 | for (ol = ol2; ol < ol2 + size; ol++) | |
2683 | { | |
2684 | if ((ol->type & opt_hidden) == 0) | |
12f69989 | 2685 | print_ol(ol, US ol->name, d, ol2, size, no_labels); |
059ec3d9 PH |
2686 | } |
2687 | ||
2688 | for (ol = d->info->options; | |
2689 | ol < d->info->options + *(d->info->options_count); ol++) | |
2690 | { | |
2691 | if ((ol->type & opt_hidden) == 0) | |
12f69989 | 2692 | print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels); |
059ec3d9 PH |
2693 | } |
2694 | if (name != NULL) return; | |
2695 | } | |
2696 | if (name != NULL) printf("%s %s not found\n", type, name); | |
2697 | } | |
2698 | ||
2699 | ||
2700 | ||
2701 | /************************************************* | |
2702 | * Read a named list item * | |
2703 | *************************************************/ | |
2704 | ||
2705 | /* This function reads a name and a list (i.e. string). The name is used to | |
2706 | save the list in a tree, sorted by its name. Each entry also has a number, | |
2707 | which can be used for caching tests, but if the string contains any expansion | |
2708 | items other than $key, the number is set negative to inhibit caching. This | |
2709 | mechanism is used for domain, host, and address lists that are referenced by | |
2710 | the "+name" syntax. | |
2711 | ||
2712 | Arguments: | |
2713 | anchorp points to the tree anchor | |
2714 | numberp points to the current number for this tree | |
2715 | max the maximum number permitted | |
2716 | s the text of the option line, starting immediately after the name | |
2717 | of the list type | |
2718 | tname the name of the list type, for messages | |
2719 | ||
2720 | Returns: nothing | |
2721 | */ | |
2722 | ||
2723 | static void | |
2724 | read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s, | |
2725 | uschar *tname) | |
2726 | { | |
2727 | BOOL forcecache = FALSE; | |
2728 | uschar *ss; | |
2729 | tree_node *t; | |
2730 | namedlist_block *nb = store_get(sizeof(namedlist_block)); | |
2731 | ||
2732 | if (Ustrncmp(s, "_cache", 6) == 0) | |
2733 | { | |
2734 | forcecache = TRUE; | |
2735 | s += 6; | |
2736 | } | |
2737 | ||
2738 | if (!isspace(*s)) | |
2739 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line"); | |
2740 | ||
2741 | if (*numberp >= max) | |
2742 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n", | |
2743 | tname, max); | |
2744 | ||
2745 | while (isspace(*s)) s++; | |
2746 | ss = s; | |
2747 | while (isalnum(*s) || *s == '_') s++; | |
2748 | t = store_get(sizeof(tree_node) + s-ss); | |
2749 | Ustrncpy(t->name, ss, s-ss); | |
2750 | t->name[s-ss] = 0; | |
2751 | while (isspace(*s)) s++; | |
2752 | ||
2753 | if (!tree_insertnode(anchorp, t)) | |
2754 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2755 | "duplicate name \"%s\" for a named %s", t->name, tname); | |
2756 | ||
2757 | t->data.ptr = nb; | |
2758 | nb->number = *numberp; | |
2759 | *numberp += 1; | |
2760 | ||
2761 | if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2762 | "missing '=' after \"%s\"", t->name); | |
2763 | while (isspace(*s)) s++; | |
2764 | nb->string = read_string(s, t->name); | |
2765 | nb->cache_data = NULL; | |
2766 | ||
2767 | /* Check the string for any expansions; if any are found, mark this list | |
2768 | uncacheable unless the user has explicited forced caching. */ | |
2769 | ||
2770 | if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1; | |
2771 | } | |
2772 | ||
2773 | ||
2774 | ||
2775 | ||
2776 | /************************************************* | |
2777 | * Unpick data for a rate limit * | |
2778 | *************************************************/ | |
2779 | ||
2780 | /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four | |
2781 | separate values. | |
2782 | ||
2783 | Arguments: | |
2784 | s string, in the form t,b,f,l | |
2785 | where t is the threshold (integer) | |
2786 | b is the initial delay (time) | |
2787 | f is the multiplicative factor (fixed point) | |
2788 | k is the maximum time (time) | |
2789 | threshold where to store threshold | |
2790 | base where to store base in milliseconds | |
2791 | factor where to store factor in milliseconds | |
2792 | limit where to store limit | |
2793 | ||
2794 | Returns: nothing (panics on error) | |
2795 | */ | |
2796 | ||
2797 | static void | |
2798 | unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor, | |
2799 | int *limit) | |
2800 | { | |
2801 | uschar bstring[16], lstring[16]; | |
2802 | ||
2803 | if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring, | |
2804 | factor, lstring) == 4) | |
2805 | { | |
2806 | *base = readconf_readtime(bstring, 0, TRUE); | |
2807 | *limit = readconf_readtime(lstring, 0, TRUE); | |
2808 | if (*base >= 0 && *limit >= 0) return; | |
2809 | } | |
2810 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s); | |
2811 | } | |
2812 | ||
2813 | ||
2814 | ||
2815 | ||
3375e053 PP |
2816 | /************************************************* |
2817 | * Drop privs for checking TLS config * | |
2818 | *************************************************/ | |
2819 | ||
2820 | /* We want to validate TLS options during readconf, but do not want to be | |
2821 | root when we call into the TLS library, in case of library linkage errors | |
2822 | which cause segfaults; before this check, those were always done as the Exim | |
2823 | runtime user and it makes sense to continue with that. | |
2824 | ||
2825 | Assumes: tls_require_ciphers has been set, if it will be | |
2826 | exim_user has been set, if it will be | |
2827 | exim_group has been set, if it will be | |
2828 | ||
2829 | Returns: bool for "okay"; false will cause caller to immediately exit. | |
2830 | */ | |
2831 | ||
2832 | #ifdef SUPPORT_TLS | |
2833 | static BOOL | |
2834 | tls_dropprivs_validate_require_cipher(void) | |
2835 | { | |
2836 | const uschar *errmsg; | |
2837 | pid_t pid; | |
2838 | int rc, status; | |
2839 | void (*oldsignal)(int); | |
2840 | ||
2841 | oldsignal = signal(SIGCHLD, SIG_DFL); | |
2842 | ||
2843 | fflush(NULL); | |
2844 | if ((pid = fork()) < 0) | |
2845 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check"); | |
2846 | ||
2847 | if (pid == 0) | |
2848 | { | |
1d7a353e PP |
2849 | /* in some modes, will have dropped privilege already */ |
2850 | if (!geteuid()) | |
2851 | exim_setugid(exim_uid, exim_gid, FALSE, | |
2852 | US"calling tls_validate_require_cipher"); | |
3375e053 PP |
2853 | |
2854 | errmsg = tls_validate_require_cipher(); | |
2855 | if (errmsg) | |
2856 | { | |
2857 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
2858 | "tls_require_ciphers invalid: %s", errmsg); | |
2859 | } | |
2860 | fflush(NULL); | |
2861 | _exit(0); | |
2862 | } | |
2863 | ||
2864 | do { | |
2865 | rc = waitpid(pid, &status, 0); | |
2866 | } while (rc < 0 && errno == EINTR); | |
2867 | ||
9d26b8c0 | 2868 | DEBUG(D_tls) |
3375e053 PP |
2869 | debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n", |
2870 | (int)pid, status); | |
2871 | ||
2872 | signal(SIGCHLD, oldsignal); | |
2873 | ||
2874 | return status == 0; | |
2875 | } | |
2876 | #endif /* SUPPORT_TLS */ | |
2877 | ||
2878 | ||
2879 | ||
2880 | ||
059ec3d9 PH |
2881 | /************************************************* |
2882 | * Read main configuration options * | |
2883 | *************************************************/ | |
2884 | ||
2885 | /* This function is the first to be called for configuration reading. It | |
2886 | opens the configuration file and reads general configuration settings until | |
2887 | it reaches the end of the configuration section. The file is then left open so | |
2888 | that the remaining configuration data can subsequently be read if needed for | |
2889 | this run of Exim. | |
2890 | ||
2891 | The configuration file must be owned either by root or exim, and be writeable | |
2892 | only by root or uid/gid exim. The values for Exim's uid and gid can be changed | |
2893 | in the config file, so the test is done on the compiled in values. A slight | |
2894 | anomaly, to be carefully documented. | |
2895 | ||
2896 | The name of the configuration file is taken from a list that is included in the | |
2897 | binary of Exim. It can be altered from the command line, but if that is done, | |
2898 | root privilege is immediately withdrawn unless the caller is root or exim. | |
2899 | The first file on the list that exists is used. | |
2900 | ||
2901 | For use on multiple systems that share file systems, first look for a | |
2902 | configuration file whose name has the current node name on the end. If that is | |
2903 | not found, try the generic name. For really contorted configurations, that run | |
2904 | multiple Exims with different uid settings, first try adding the effective uid | |
2905 | before the node name. These complications are going to waste resources on most | |
2906 | systems. Therefore they are available only when requested by compile-time | |
2907 | options. */ | |
2908 | ||
2909 | void | |
2910 | readconf_main(void) | |
2911 | { | |
2912 | int sep = 0; | |
2913 | struct stat statbuf; | |
2914 | uschar *s, *filename; | |
2915 | uschar *list = config_main_filelist; | |
2916 | ||
2917 | /* Loop through the possible file names */ | |
2918 | ||
2919 | while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)) | |
2920 | != NULL) | |
2921 | { | |
2922 | /* Cut out all the fancy processing unless specifically wanted */ | |
2923 | ||
2924 | #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID) | |
2925 | uschar *suffix = filename + Ustrlen(filename); | |
2926 | ||
2927 | /* Try for the node-specific file if a node name exists */ | |
2928 | ||
2929 | #ifdef CONFIGURE_FILE_USE_NODE | |
2930 | struct utsname uts; | |
2931 | if (uname(&uts) >= 0) | |
2932 | { | |
2933 | #ifdef CONFIGURE_FILE_USE_EUID | |
2934 | sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename); | |
2935 | config_file = Ufopen(filename, "rb"); | |
2936 | if (config_file == NULL) | |
2937 | #endif /* CONFIGURE_FILE_USE_EUID */ | |
2938 | { | |
2939 | sprintf(CS suffix, ".%.256s", uts.nodename); | |
2940 | config_file = Ufopen(filename, "rb"); | |
2941 | } | |
2942 | } | |
2943 | #endif /* CONFIGURE_FILE_USE_NODE */ | |
2944 | ||
2945 | /* Otherwise, try the generic name, possibly with the euid added */ | |
2946 | ||
2947 | #ifdef CONFIGURE_FILE_USE_EUID | |
2948 | if (config_file == NULL) | |
2949 | { | |
2950 | sprintf(CS suffix, ".%ld", (long int)original_euid); | |
2951 | config_file = Ufopen(filename, "rb"); | |
2952 | } | |
2953 | #endif /* CONFIGURE_FILE_USE_EUID */ | |
2954 | ||
2955 | /* Finally, try the unadorned name */ | |
2956 | ||
2957 | if (config_file == NULL) | |
2958 | { | |
2959 | *suffix = 0; | |
2960 | config_file = Ufopen(filename, "rb"); | |
2961 | } | |
2962 | #else /* if neither defined */ | |
2963 | ||
2964 | /* This is the common case when the fancy processing is not included. */ | |
2965 | ||
2966 | config_file = Ufopen(filename, "rb"); | |
2967 | #endif | |
2968 | ||
2969 | /* If the file does not exist, continue to try any others. For any other | |
2970 | error, break out (and die). */ | |
2971 | ||
2972 | if (config_file != NULL || errno != ENOENT) break; | |
2973 | } | |
2974 | ||
2975 | /* On success, save the name for verification; config_filename is used when | |
2976 | logging configuration errors (it changes for .included files) whereas | |
2977 | config_main_filename is the name shown by -bP. Failure to open a configuration | |
2978 | file is a serious disaster. */ | |
2979 | ||
2980 | if (config_file != NULL) | |
2981 | { | |
2982 | config_filename = config_main_filename = string_copy(filename); | |
2983 | } | |
2984 | else | |
2985 | { | |
2986 | if (filename == NULL) | |
2987 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): " | |
2988 | "%s", config_main_filelist); | |
2989 | else | |
2990 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno, | |
2991 | "configuration file %s", filename)); | |
2992 | } | |
2993 | ||
e2f5dc15 | 2994 | /* Check the status of the file we have opened, if we have retained root |
fea24b2e | 2995 | privileges and the file isn't /dev/null (which *should* be 0666). */ |
059ec3d9 | 2996 | |
fea24b2e | 2997 | if (trusted_config && Ustrcmp(filename, US"/dev/null")) |
059ec3d9 PH |
2998 | { |
2999 | if (fstat(fileno(config_file), &statbuf) != 0) | |
3000 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s", | |
3001 | big_buffer); | |
3002 | ||
c1d94452 | 3003 | if ((statbuf.st_uid != root_uid /* owner not root */ |
059ec3d9 PH |
3004 | #ifdef CONFIGURE_OWNER |
3005 | && statbuf.st_uid != config_uid /* owner not the special one */ | |
3006 | #endif | |
3007 | ) || /* or */ | |
c1d94452 | 3008 | (statbuf.st_gid != root_gid /* group not root & */ |
35edf2ff PH |
3009 | #ifdef CONFIGURE_GROUP |
3010 | && statbuf.st_gid != config_gid /* group not the special one */ | |
8e669ac1 | 3011 | #endif |
35edf2ff | 3012 | && (statbuf.st_mode & 020) != 0) || /* group writeable */ |
059ec3d9 PH |
3013 | /* or */ |
3014 | ((statbuf.st_mode & 2) != 0)) /* world writeable */ | |
3015 | ||
3016 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the " | |
3017 | "wrong owner, group, or mode", big_buffer); | |
3018 | } | |
3019 | ||
3020 | /* Process the main configuration settings. They all begin with a lower case | |
3021 | letter. If we see something starting with an upper case letter, it is taken as | |
3022 | a macro definition. */ | |
3023 | ||
3024 | while ((s = get_config_line()) != NULL) | |
3025 | { | |
cf00dad6 | 3026 | if (isupper(s[0])) read_macro_assignment(s); |
059ec3d9 PH |
3027 | |
3028 | else if (Ustrncmp(s, "domainlist", 10) == 0) | |
3029 | read_named_list(&domainlist_anchor, &domainlist_count, | |
3030 | MAX_NAMED_LIST, s+10, US"domain list"); | |
3031 | ||
3032 | else if (Ustrncmp(s, "hostlist", 8) == 0) | |
3033 | read_named_list(&hostlist_anchor, &hostlist_count, | |
3034 | MAX_NAMED_LIST, s+8, US"host list"); | |
3035 | ||
3036 | else if (Ustrncmp(s, US"addresslist", 11) == 0) | |
3037 | read_named_list(&addresslist_anchor, &addresslist_count, | |
3038 | MAX_NAMED_LIST, s+11, US"address list"); | |
3039 | ||
3040 | else if (Ustrncmp(s, US"localpartlist", 13) == 0) | |
3041 | read_named_list(&localpartlist_anchor, &localpartlist_count, | |
3042 | MAX_NAMED_LIST, s+13, US"local part list"); | |
3043 | ||
3044 | else | |
3045 | (void) readconf_handle_option(s, optionlist_config, optionlist_config_size, | |
3046 | NULL, US"main option \"%s\" unknown"); | |
3047 | } | |
3048 | ||
3049 | ||
3050 | /* If local_sender_retain is set, local_from_check must be unset. */ | |
3051 | ||
3052 | if (local_sender_retain && local_from_check) | |
3053 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and " | |
3054 | "local_sender_retain are set; this combination is not allowed"); | |
3055 | ||
3056 | /* If the timezone string is empty, set it to NULL, implying no TZ variable | |
3057 | wanted. */ | |
3058 | ||
3059 | if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL; | |
3060 | ||
944a9c55 PH |
3061 | /* The max retry interval must not be greater than 24 hours. */ |
3062 | ||
3063 | if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60; | |
3064 | ||
059ec3d9 PH |
3065 | /* remote_max_parallel must be > 0 */ |
3066 | ||
3067 | if (remote_max_parallel <= 0) remote_max_parallel = 1; | |
3068 | ||
6a3f1455 PH |
3069 | /* Save the configured setting of freeze_tell, so we can re-instate it at the |
3070 | start of a new SMTP message. */ | |
3071 | ||
3072 | freeze_tell_config = freeze_tell; | |
3073 | ||
059ec3d9 PH |
3074 | /* The primary host name may be required for expansion of spool_directory |
3075 | and log_file_path, so make sure it is set asap. It is obtained from uname(), | |
3076 | but if that yields an unqualified value, make a FQDN by using gethostbyname to | |
3077 | canonize it. Some people like upper case letters in their host names, so we | |
3078 | don't force the case. */ | |
3079 | ||
3080 | if (primary_hostname == NULL) | |
3081 | { | |
3082 | uschar *hostname; | |
3083 | struct utsname uts; | |
3084 | if (uname(&uts) < 0) | |
3085 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name"); | |
3086 | hostname = US uts.nodename; | |
3087 | ||
3088 | if (Ustrchr(hostname, '.') == NULL) | |
3089 | { | |
3090 | int af = AF_INET; | |
3091 | struct hostent *hostdata; | |
3092 | ||
3093 | #if HAVE_IPV6 | |
7e66e54d | 3094 | if (!disable_ipv6 && (dns_ipv4_lookup == NULL || |
059ec3d9 | 3095 | match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN, |
7e66e54d | 3096 | TRUE, NULL) != OK)) |
059ec3d9 PH |
3097 | af = AF_INET6; |
3098 | #else | |
3099 | af = AF_INET; | |
3100 | #endif | |
3101 | ||
3102 | for (;;) | |
3103 | { | |
3104 | #if HAVE_IPV6 | |
3105 | #if HAVE_GETIPNODEBYNAME | |
3106 | int error_num; | |
3107 | hostdata = getipnodebyname(CS hostname, af, 0, &error_num); | |
3108 | #else | |
3109 | hostdata = gethostbyname2(CS hostname, af); | |
3110 | #endif | |
3111 | #else | |
3112 | hostdata = gethostbyname(CS hostname); | |
3113 | #endif | |
3114 | ||
3115 | if (hostdata != NULL) | |
3116 | { | |
3117 | hostname = US hostdata->h_name; | |
3118 | break; | |
3119 | } | |
3120 | ||
3121 | if (af == AF_INET) break; | |
3122 | af = AF_INET; | |
3123 | } | |
3124 | } | |
3125 | ||
3126 | primary_hostname = string_copy(hostname); | |
3127 | } | |
3128 | ||
3129 | /* Set up default value for smtp_active_hostname */ | |
3130 | ||
3131 | smtp_active_hostname = primary_hostname; | |
3132 | ||
3133 | /* If spool_directory wasn't set in the build-time configuration, it must have | |
3134 | got set above. Of course, writing to the log may not work if log_file_path is | |
3135 | not set, but it will at least get to syslog or somewhere, with any luck. */ | |
3136 | ||
3137 | if (*spool_directory == 0) | |
3138 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot " | |
3139 | "proceed"); | |
3140 | ||
3141 | /* Expand the spool directory name; it may, for example, contain the primary | |
3142 | host name. Same comment about failure. */ | |
3143 | ||
3144 | s = expand_string(spool_directory); | |
3145 | if (s == NULL) | |
3146 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory " | |
3147 | "\"%s\": %s", spool_directory, expand_string_message); | |
3148 | spool_directory = s; | |
3149 | ||
3150 | /* Expand log_file_path, which must contain "%s" in any component that isn't | |
f1e5fef5 PP |
3151 | the null string or "syslog". It is also allowed to contain one instance of %D |
3152 | or %M. However, it must NOT contain % followed by anything else. */ | |
059ec3d9 PH |
3153 | |
3154 | if (*log_file_path != 0) | |
3155 | { | |
3156 | uschar *ss, *sss; | |
3157 | int sep = ':'; /* Fixed for log file path */ | |
3158 | s = expand_string(log_file_path); | |
3159 | if (s == NULL) | |
3160 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path " | |
3161 | "\"%s\": %s", log_file_path, expand_string_message); | |
3162 | ||
3163 | ss = s; | |
3164 | while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL) | |
3165 | { | |
3166 | uschar *t; | |
3167 | if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue; | |
3168 | t = Ustrstr(sss, "%s"); | |
3169 | if (t == NULL) | |
3170 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not " | |
3171 | "contain \"%%s\"", sss); | |
3172 | *t = 'X'; | |
3173 | t = Ustrchr(sss, '%'); | |
3174 | if (t != NULL) | |
3175 | { | |
f1e5fef5 | 3176 | if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL) |
059ec3d9 PH |
3177 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains " |
3178 | "unexpected \"%%\" character", s); | |
3179 | } | |
3180 | } | |
3181 | ||
3182 | log_file_path = s; | |
3183 | } | |
3184 | ||
3185 | /* Interpret syslog_facility into an integer argument for 'ident' param to | |
3186 | openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the | |
3187 | leading "log_". */ | |
3188 | ||
3189 | if (syslog_facility_str != NULL) | |
3190 | { | |
3191 | int i; | |
3192 | uschar *s = syslog_facility_str; | |
3193 | ||
3194 | if ((Ustrlen(syslog_facility_str) >= 4) && | |
3195 | (strncmpic(syslog_facility_str, US"log_", 4) == 0)) | |
3196 | s += 4; | |
3197 | ||
3198 | for (i = 0; i < syslog_list_size; i++) | |
3199 | { | |
3200 | if (strcmpic(s, syslog_list[i].name) == 0) | |
3201 | { | |
3202 | syslog_facility = syslog_list[i].value; | |
3203 | break; | |
3204 | } | |
3205 | } | |
3206 | ||
3207 | if (i >= syslog_list_size) | |
3208 | { | |
3209 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3210 | "failed to interpret syslog_facility \"%s\"", syslog_facility_str); | |
3211 | } | |
3212 | } | |
3213 | ||
3214 | /* Expand pid_file_path */ | |
3215 | ||
3216 | if (*pid_file_path != 0) | |
3217 | { | |
3218 | s = expand_string(pid_file_path); | |
3219 | if (s == NULL) | |
3220 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path " | |
3221 | "\"%s\": %s", pid_file_path, expand_string_message); | |
3222 | pid_file_path = s; | |
3223 | } | |
3224 | ||
921b12ca TF |
3225 | /* Set default value of process_log_path */ |
3226 | ||
3227 | if (process_log_path == NULL || *process_log_path =='\0') | |
3228 | process_log_path = string_sprintf("%s/exim-process.info", spool_directory); | |
3229 | ||
059ec3d9 PH |
3230 | /* Compile the regex for matching a UUCP-style "From_" line in an incoming |
3231 | message. */ | |
3232 | ||
3233 | regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE); | |
3234 | ||
3235 | /* Unpick the SMTP rate limiting options, if set */ | |
3236 | ||
3237 | if (smtp_ratelimit_mail != NULL) | |
3238 | { | |
3239 | unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold, | |
3240 | &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit); | |
3241 | } | |
3242 | ||
3243 | if (smtp_ratelimit_rcpt != NULL) | |
3244 | { | |
3245 | unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold, | |
3246 | &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit); | |
3247 | } | |
3248 | ||
3249 | /* The qualify domains default to the primary host name */ | |
3250 | ||
3251 | if (qualify_domain_sender == NULL) | |
3252 | qualify_domain_sender = primary_hostname; | |
3253 | if (qualify_domain_recipient == NULL) | |
3254 | qualify_domain_recipient = qualify_domain_sender; | |
3255 | ||
3256 | /* Setting system_filter_user in the configuration sets the gid as well if a | |
3257 | name is given, but a numerical value does not. */ | |
3258 | ||
3259 | if (system_filter_uid_set && !system_filter_gid_set) | |
3260 | { | |
3261 | struct passwd *pw = getpwuid(system_filter_uid); | |
3262 | if (pw == NULL) | |
3263 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld", | |
3264 | (long int)system_filter_uid); | |
3265 | system_filter_gid = pw->pw_gid; | |
3266 | system_filter_gid_set = TRUE; | |
3267 | } | |
3268 | ||
3269 | /* If the errors_reply_to field is set, check that it is syntactically valid | |
3270 | and ensure it contains a domain. */ | |
3271 | ||
3272 | if (errors_reply_to != NULL) | |
3273 | { | |
3274 | uschar *errmess; | |
3275 | int start, end, domain; | |
3276 | uschar *recipient = parse_extract_address(errors_reply_to, &errmess, | |
3277 | &start, &end, &domain, FALSE); | |
3278 | ||
3279 | if (recipient == NULL) | |
3280 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3281 | "error in errors_reply_to (%s): %s", errors_reply_to, errmess); | |
3282 | ||
3283 | if (domain == 0) | |
3284 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3285 | "errors_reply_to (%s) does not contain a domain", errors_reply_to); | |
3286 | } | |
3287 | ||
3288 | /* If smtp_accept_queue or smtp_accept_max_per_host is set, then | |
3289 | smtp_accept_max must also be set. */ | |
3290 | ||
3291 | if (smtp_accept_max == 0 && | |
3292 | (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL)) | |
3293 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3294 | "smtp_accept_max must be set if smtp_accept_queue or " | |
3295 | "smtp_accept_max_per_host is set"); | |
3296 | ||
3297 | /* Set up the host number if anything is specified. It is an expanded string | |
3298 | so that it can be computed from the host name, for example. We do this last | |
3299 | so as to ensure that everything else is set up before the expansion. */ | |
3300 | ||
3301 | if (host_number_string != NULL) | |
3302 | { | |
ef840681 | 3303 | long int n; |
059ec3d9 PH |
3304 | uschar *end; |
3305 | uschar *s = expand_string(host_number_string); | |
ef840681 PP |
3306 | if (s == NULL) |
3307 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, | |
3308 | "failed to expand localhost_number \"%s\": %s", | |
3309 | host_number_string, expand_string_message); | |
3310 | n = Ustrtol(s, &end, 0); | |
059ec3d9 PH |
3311 | while (isspace(*end)) end++; |
3312 | if (*end != 0) | |
3313 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3314 | "localhost_number value is not a number: %s", s); | |
3315 | if (n > LOCALHOST_MAX) | |
3316 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3317 | "localhost_number is greater than the maximum allowed value (%d)", | |
3318 | LOCALHOST_MAX); | |
3319 | host_number = n; | |
3320 | } | |
3321 | ||
3322 | #ifdef SUPPORT_TLS | |
3323 | /* If tls_verify_hosts is set, tls_verify_certificates must also be set */ | |
3324 | ||
3325 | if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) && | |
3326 | tls_verify_certificates == NULL) | |
3327 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3328 | "tls_%sverify_hosts is set, but tls_verify_certificates is not set", | |
3329 | (tls_verify_hosts != NULL)? "" : "try_"); | |
77bb000f | 3330 | |
3375e053 PP |
3331 | /* This also checks that the library linkage is working and we can call |
3332 | routines in it, so call even if tls_require_ciphers is unset */ | |
3333 | if (!tls_dropprivs_validate_require_cipher()) | |
3334 | exit(1); | |
3335 | ||
3336 | /* Magic number: at time of writing, 1024 has been the long-standing value | |
3337 | used by so many clients, and what Exim used to use always, that it makes | |
3338 | sense to just min-clamp this max-clamp at that. */ | |
3339 | if (tls_dh_max_bits < 1024) | |
3340 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3341 | "tls_dh_max_bits is too small, must be at least 1024 for interop"); | |
3342 | ||
77bb000f PP |
3343 | /* If openssl_options is set, validate it */ |
3344 | if (openssl_options != NULL) | |
3345 | { | |
3346 | # ifdef USE_GNUTLS | |
3347 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
a053d125 | 3348 | "openssl_options is set but we're using GnuTLS"); |
77bb000f PP |
3349 | # else |
3350 | long dummy; | |
3351 | if (!(tls_openssl_options_parse(openssl_options, &dummy))) | |
3352 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
a053d125 | 3353 | "openssl_options parse error: %s", openssl_options); |
77bb000f PP |
3354 | # endif |
3355 | } | |
059ec3d9 PH |
3356 | #endif |
3357 | } | |
3358 | ||
3359 | ||
3360 | ||
3361 | /************************************************* | |
3362 | * Initialize one driver * | |
3363 | *************************************************/ | |
3364 | ||
3365 | /* This is called once the driver's generic options, if any, have been read. | |
3366 | We can now find the driver, set up defaults for the private options, and | |
3367 | unset any "set" bits in the private options table (which might have been | |
3368 | set by another incarnation of the same driver). | |
3369 | ||
3370 | Arguments: | |
3371 | d pointer to driver instance block, with generic | |
3372 | options filled in | |
3373 | drivers_available vector of available drivers | |
3374 | size_of_info size of each block in drivers_available | |
3375 | class class of driver, for error message | |
3376 | ||
3377 | Returns: pointer to the driver info block | |
3378 | */ | |
3379 | ||
3380 | static driver_info * | |
3381 | init_driver(driver_instance *d, driver_info *drivers_available, | |
3382 | int size_of_info, uschar *class) | |
3383 | { | |
3384 | driver_info *dd; | |
3385 | ||
3386 | for (dd = drivers_available; dd->driver_name[0] != 0; | |
3387 | dd = (driver_info *)(((uschar *)dd) + size_of_info)) | |
3388 | { | |
3389 | if (Ustrcmp(d->driver_name, dd->driver_name) == 0) | |
3390 | { | |
3391 | int i; | |
3392 | int len = dd->options_len; | |
3393 | d->info = dd; | |
3394 | d->options_block = store_get(len); | |
3395 | memcpy(d->options_block, dd->options_block, len); | |
3396 | for (i = 0; i < *(dd->options_count); i++) | |
3397 | dd->options[i].type &= ~opt_set; | |
3398 | return dd; | |
3399 | } | |
3400 | } | |
3401 | ||
3402 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3403 | "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name); | |
3404 | ||
3405 | return NULL; /* never obeyed */ | |
3406 | } | |
3407 | ||
3408 | ||
3409 | ||
3410 | ||
3411 | /************************************************* | |
3412 | * Initialize driver list * | |
3413 | *************************************************/ | |
3414 | ||
3415 | /* This function is called for routers, transports, and authentication | |
3416 | mechanisms. It reads the data from the current point in the configuration file | |
3417 | up to the end of the section, and sets up a chain of instance blocks according | |
3418 | to the file's contents. The file will already have been opened by a call to | |
3419 | readconf_main, and must be left open for subsequent reading of further data. | |
3420 | ||
3421 | Any errors cause a panic crash. Note that the blocks with names driver_info and | |
3422 | driver_instance must map the first portions of all the _info and _instance | |
3423 | blocks for this shared code to work. | |
3424 | ||
3425 | Arguments: | |
3426 | class "router", "transport", or "authenticator" | |
3427 | anchor &routers, &transports, &auths | |
3428 | drivers_available available drivers | |
3429 | size_of_info size of each info block | |
3430 | instance_default points to default data for an instance | |
3431 | instance_size size of instance block | |
3432 | driver_optionlist generic option list | |
3433 | driver_optionlist_count count of generic option list | |
3434 | ||
3435 | Returns: nothing | |
3436 | */ | |
3437 | ||
3438 | void | |
3439 | readconf_driver_init( | |
3440 | uschar *class, | |
3441 | driver_instance **anchor, | |
3442 | driver_info *drivers_available, | |
3443 | int size_of_info, | |
3444 | void *instance_default, | |
3445 | int instance_size, | |
3446 | optionlist *driver_optionlist, | |
3447 | int driver_optionlist_count) | |
3448 | { | |
3449 | driver_instance **p = anchor; | |
3450 | driver_instance *d = NULL; | |
3451 | uschar *buffer; | |
3452 | ||
059ec3d9 PH |
3453 | while ((buffer = get_config_line()) != NULL) |
3454 | { | |
3455 | uschar name[64]; | |
cf00dad6 | 3456 | uschar *s; |
059ec3d9 | 3457 | |
cf00dad6 PH |
3458 | /* Read the first name on the line and test for the start of a new driver. A |
3459 | macro definition indicates the end of the previous driver. If this isn't the | |
3460 | start of a new driver, the line will be re-read. */ | |
059ec3d9 | 3461 | |
cf00dad6 PH |
3462 | s = readconf_readname(name, sizeof(name), buffer); |
3463 | ||
3464 | /* Handle macro definition, first finishing off the initialization of the | |
3465 | previous driver, if any. */ | |
3466 | ||
3467 | if (isupper(*name) && *s == '=') | |
3468 | { | |
3469 | if (d != NULL) | |
3470 | { | |
3471 | if (d->driver_name == NULL) | |
3472 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3473 | "no driver defined for %s \"%s\"", class, d->name); | |
3474 | (d->info->init)(d); | |
3475 | d = NULL; | |
3476 | } | |
3477 | read_macro_assignment(buffer); | |
3478 | continue; | |
3479 | } | |
059ec3d9 PH |
3480 | |
3481 | /* If the line starts with a name terminated by a colon, we are at the | |
3482 | start of the definition of a new driver. The rest of the line must be | |
3483 | blank. */ | |
3484 | ||
3485 | if (*s++ == ':') | |
3486 | { | |
3487 | int i; | |
3488 | ||
3489 | /* Finish off initializing the previous driver. */ | |
3490 | ||
3491 | if (d != NULL) | |
3492 | { | |
3493 | if (d->driver_name == NULL) | |
3494 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3495 | "no driver defined for %s \"%s\"", class, d->name); | |
3496 | (d->info->init)(d); | |
3497 | } | |
3498 | ||
3499 | /* Check that we haven't already got a driver of this name */ | |
3500 | ||
3501 | for (d = *anchor; d != NULL; d = d->next) | |
3502 | if (Ustrcmp(name, d->name) == 0) | |
3503 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3504 | "there are two %ss called \"%s\"", class, name); | |
3505 | ||
3506 | /* Set up a new driver instance data block on the chain, with | |
3507 | its default values installed. */ | |
3508 | ||
3509 | d = store_get(instance_size); | |
3510 | memcpy(d, instance_default, instance_size); | |
3511 | *p = d; | |
3512 | p = &(d->next); | |
3513 | d->name = string_copy(name); | |
3514 | ||
3515 | /* Clear out the "set" bits in the generic options */ | |
3516 | ||
3517 | for (i = 0; i < driver_optionlist_count; i++) | |
3518 | driver_optionlist[i].type &= ~opt_set; | |
3519 | ||
3520 | /* Check nothing more on this line, then do the next loop iteration. */ | |
3521 | ||
3522 | while (isspace(*s)) s++; | |
3523 | if (*s != 0) extra_chars_error(s, US"driver name ", name, US""); | |
3524 | continue; | |
3525 | } | |
3526 | ||
cf00dad6 PH |
3527 | /* Not the start of a new driver. Give an error if we have not set up a |
3528 | current driver yet. */ | |
059ec3d9 PH |
3529 | |
3530 | if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3531 | "%s name missing", class); | |
3532 | ||
3533 | /* First look to see if this is a generic option; if it is "driver", | |
3534 | initialize the driver. If is it not a generic option, we can look for a | |
3535 | private option provided that the driver has been previously set up. */ | |
3536 | ||
3537 | if (readconf_handle_option(buffer, driver_optionlist, | |
3538 | driver_optionlist_count, d, NULL)) | |
3539 | { | |
3540 | if (d->info == NULL && d->driver_name != NULL) | |
3541 | init_driver(d, drivers_available, size_of_info, class); | |
3542 | } | |
3543 | ||
3544 | /* Handle private options - pass the generic block because some may | |
3545 | live therein. A flag with each option indicates if it is in the public | |
3546 | block. */ | |
3547 | ||
3548 | else if (d->info != NULL) | |
3549 | { | |
3550 | readconf_handle_option(buffer, d->info->options, | |
3551 | *(d->info->options_count), d, US"option \"%s\" unknown"); | |
3552 | } | |
3553 | ||
3554 | /* The option is not generic and the driver name has not yet been given. */ | |
3555 | ||
3556 | else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown " | |
3557 | "(\"driver\" must be specified before any private options)", name); | |
3558 | } | |
3559 | ||
3560 | /* Run the initialization function for the final driver. */ | |
3561 | ||
3562 | if (d != NULL) | |
3563 | { | |
3564 | if (d->driver_name == NULL) | |
3565 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3566 | "no driver defined for %s \"%s\"", class, d->name); | |
3567 | (d->info->init)(d); | |
3568 | } | |
3569 | } | |
3570 | ||
3571 | ||
3572 | ||
3573 | /************************************************* | |
3574 | * Check driver dependency * | |
3575 | *************************************************/ | |
3576 | ||
3577 | /* This function is passed a driver instance and a string. It checks whether | |
3578 | any of the string options for the driver contains the given string as an | |
3579 | expansion variable. | |
3580 | ||
3581 | Arguments: | |
3582 | d points to a driver instance block | |
3583 | s the string to search for | |
3584 | ||
3585 | Returns: TRUE if a dependency is found | |
3586 | */ | |
3587 | ||
3588 | BOOL | |
3589 | readconf_depends(driver_instance *d, uschar *s) | |
3590 | { | |
3591 | int count = *(d->info->options_count); | |
3592 | optionlist *ol; | |
3593 | uschar *ss; | |
3594 | ||
3595 | for (ol = d->info->options; ol < d->info->options + count; ol++) | |
3596 | { | |
3597 | void *options_block; | |
3598 | uschar *value; | |
3599 | int type = ol->type & opt_mask; | |
3600 | if (type != opt_stringptr) continue; | |
3601 | options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d; | |
3602 | value = *(uschar **)((uschar *)options_block + (long int)(ol->value)); | |
3603 | if (value != NULL && (ss = Ustrstr(value, s)) != NULL) | |
3604 | { | |
3605 | if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') || | |
3606 | isalnum(ss[Ustrlen(s)])) continue; | |
3607 | DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n", | |
3608 | d->name, ol->name, s); | |
3609 | return TRUE; | |
3610 | } | |
3611 | } | |
3612 | ||
3613 | DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s); | |
3614 | return FALSE; | |
3615 | } | |
3616 | ||
3617 | ||
3618 | ||
3619 | ||
3620 | /************************************************* | |
3621 | * Decode an error type for retries * | |
3622 | *************************************************/ | |
3623 | ||
3624 | /* This function is global because it is also called from the main | |
3625 | program when testing retry information. It decodes strings such as "quota_7d" | |
3626 | into numerical error codes. | |
3627 | ||
3628 | Arguments: | |
3629 | pp points to start of text | |
3630 | p points past end of text | |
3631 | basic_errno points to an int to receive the main error number | |
3632 | more_errno points to an int to receive the secondary error data | |
3633 | ||
3634 | Returns: NULL if decoded correctly; else points to error text | |
3635 | */ | |
3636 | ||
3637 | uschar * | |
3638 | readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno) | |
3639 | { | |
3640 | int len; | |
3641 | uschar *q = pp; | |
3642 | while (q < p && *q != '_') q++; | |
3643 | len = q - pp; | |
3644 | ||
3645 | if (len == 5 && strncmpic(pp, US"quota", len) == 0) | |
3646 | { | |
3647 | *basic_errno = ERRNO_EXIMQUOTA; | |
3648 | if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0) | |
3649 | return US"bad time value"; | |
3650 | } | |
3651 | ||
3652 | else if (len == 7 && strncmpic(pp, US"refused", len) == 0) | |
3653 | { | |
3654 | *basic_errno = ECONNREFUSED; | |
3655 | if (q != p) | |
3656 | { | |
3657 | if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M'; | |
3658 | else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A'; | |
3659 | else return US"A or MX expected after \"refused\""; | |
3660 | } | |
3661 | } | |
3662 | ||
3663 | else if (len == 7 && strncmpic(pp, US"timeout", len) == 0) | |
3664 | { | |
3665 | *basic_errno = ETIMEDOUT; | |
3666 | if (q != p) | |
3667 | { | |
3668 | int i; | |
3669 | int xlen = p - q - 1; | |
3670 | uschar *x = q + 1; | |
3671 | ||
3672 | static uschar *extras[] = | |
3673 | { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" }; | |
3674 | static int values[] = | |
3675 | { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' }; | |
3676 | ||
3677 | for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++) | |
3678 | { | |
3679 | if (strncmpic(x, extras[i], xlen) == 0) | |
3680 | { | |
3681 | *more_errno = values[i]; | |
3682 | break; | |
3683 | } | |
3684 | } | |
3685 | ||
3686 | if (i >= sizeof(extras)/sizeof(uschar *)) | |
3687 | { | |
3688 | if (strncmpic(x, US"DNS", xlen) == 0) | |
3689 | { | |
3690 | log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer " | |
3691 | "available in retry rules (it has never worked) - treated as " | |
3692 | "\"timeout\""); | |
3693 | } | |
3694 | else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\""; | |
3695 | } | |
3696 | } | |
3697 | } | |
3698 | ||
e97957bc PH |
3699 | else if (strncmpic(pp, US"mail_4", 6) == 0 || |
3700 | strncmpic(pp, US"rcpt_4", 6) == 0 || | |
3701 | strncmpic(pp, US"data_4", 6) == 0) | |
059ec3d9 PH |
3702 | { |
3703 | BOOL bad = FALSE; | |
3704 | int x = 255; /* means "any 4xx code" */ | |
3705 | if (p != pp + 8) bad = TRUE; else | |
3706 | { | |
3707 | int a = pp[6], b = pp[7]; | |
3708 | if (isdigit(a)) | |
3709 | { | |
3710 | x = (a - '0') * 10; | |
3711 | if (isdigit(b)) x += b - '0'; | |
3712 | else if (b == 'x') x += 100; | |
3713 | else bad = TRUE; | |
3714 | } | |
3715 | else if (a != 'x' || b != 'x') bad = TRUE; | |
3716 | } | |
3717 | ||
e97957bc PH |
3718 | if (bad) |
3719 | return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where " | |
3720 | "x is literal and d is any digit", pp); | |
059ec3d9 | 3721 | |
e97957bc PH |
3722 | *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX : |
3723 | (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX; | |
059ec3d9 PH |
3724 | *more_errno = x << 8; |
3725 | } | |
3726 | ||
3727 | else if (len == 4 && strncmpic(pp, US"auth", len) == 0 && | |
3728 | strncmpic(q+1, US"failed", p-q-1) == 0) | |
059ec3d9 | 3729 | *basic_errno = ERRNO_AUTHFAIL; |
e97957bc | 3730 | |
48da4259 | 3731 | else if (strncmpic(pp, US"lost_connection", p - pp) == 0) |
e97957bc PH |
3732 | *basic_errno = ERRNO_SMTPCLOSED; |
3733 | ||
48da4259 | 3734 | else if (strncmpic(pp, US"tls_required", p - pp) == 0) |
e97957bc | 3735 | *basic_errno = ERRNO_TLSREQUIRED; |
059ec3d9 PH |
3736 | |
3737 | else if (len != 1 || Ustrncmp(pp, "*", 1) != 0) | |
ef840681 | 3738 | return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp); |
059ec3d9 PH |
3739 | |
3740 | return NULL; | |
3741 | } | |
3742 | ||
3743 | ||
3744 | ||
3745 | ||
3746 | /************************************************* | |
3747 | * Read retry information * | |
3748 | *************************************************/ | |
3749 | ||
3750 | /* Each line of retry information contains: | |
3751 | ||
3752 | . A domain name pattern or an address pattern; | |
3753 | ||
3754 | . An error name, possibly with additional data, or *; | |
3755 | ||
3756 | . An optional sequence of retry items, each consisting of an identifying | |
3757 | letter, a cutoff time, and optional parameters. | |
3758 | ||
3759 | All this is decoded and placed into a control block. */ | |
3760 | ||
3761 | ||
3762 | /* Subroutine to read an argument, preceded by a comma and terminated | |
3763 | by comma, semicolon, whitespace, or newline. The types are: 0 = time value, | |
3764 | 1 = fixed point number (returned *1000). | |
3765 | ||
3766 | Arguments: | |
3767 | paddr pointer to pointer to current character; updated | |
3768 | type 0 => read a time; 1 => read a fixed point number | |
3769 | ||
3770 | Returns: time in seconds or fixed point number * 1000 | |
3771 | */ | |
3772 | ||
3773 | static int | |
3774 | retry_arg(uschar **paddr, int type) | |
3775 | { | |
3776 | uschar *p = *paddr; | |
3777 | uschar *pp; | |
3778 | ||
3779 | if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected"); | |
3780 | ||
3781 | while (isspace(*p)) p++; | |
3782 | pp = p; | |
3783 | while (isalnum(*p) || (type == 1 && *p == '.')) p++; | |
3784 | ||
3785 | if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';') | |
3786 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected"); | |
3787 | ||
3788 | *paddr = p; | |
3789 | switch (type) | |
3790 | { | |
3791 | case 0: | |
3792 | return readconf_readtime(pp, *p, FALSE); | |
3793 | case 1: | |
3794 | return readconf_readfixed(pp, *p); | |
3795 | } | |
3796 | return 0; /* Keep picky compilers happy */ | |
3797 | } | |
3798 | ||
3799 | /* The function proper */ | |
3800 | ||
3801 | void | |
3802 | readconf_retries(void) | |
3803 | { | |
3804 | retry_config **chain = &retries; | |
3805 | retry_config *next; | |
3806 | uschar *p; | |
3807 | ||
3808 | while ((p = get_config_line()) != NULL) | |
3809 | { | |
3810 | retry_rule **rchain; | |
3811 | uschar *pp, *error; | |
3812 | ||
3813 | next = store_get(sizeof(retry_config)); | |
3814 | next->next = NULL; | |
3815 | *chain = next; | |
3816 | chain = &(next->next); | |
3817 | next->basic_errno = next->more_errno = 0; | |
3818 | next->senders = NULL; | |
3819 | next->rules = NULL; | |
3820 | rchain = &(next->rules); | |
3821 | ||
3822 | next->pattern = string_dequote(&p); | |
3823 | while (isspace(*p)) p++; | |
3824 | pp = p; | |
3825 | while (mac_isgraph(*p)) p++; | |
3826 | if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3827 | "missing error type"); | |
3828 | ||
3829 | /* Test error names for things we understand. */ | |
3830 | ||
3831 | if ((error = readconf_retry_error(pp, p, &(next->basic_errno), | |
3832 | &(next->more_errno))) != NULL) | |
3833 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error); | |
3834 | ||
3835 | /* There may be an optional address list of senders to be used as another | |
3836 | constraint on the rule. This was added later, so the syntax is a bit of a | |
3837 | fudge. Anything that is not a retry rule starting "F," or "G," is treated as | |
3838 | an address list. */ | |
3839 | ||
3840 | while (isspace(*p)) p++; | |
3841 | if (Ustrncmp(p, "senders", 7) == 0) | |
3842 | { | |
3843 | p += 7; | |
3844 | while (isspace(*p)) p++; | |
3845 | if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3846 | "\"=\" expected after \"senders\" in retry rule"); | |
3847 | while (isspace(*p)) p++; | |
3848 | next->senders = string_dequote(&p); | |
3849 | } | |
3850 | ||
3851 | /* Now the retry rules. Keep the maximum timeout encountered. */ | |
3852 | ||
3853 | while (isspace(*p)) p++; | |
3854 | ||
3855 | while (*p != 0) | |
3856 | { | |
3857 | retry_rule *rule = store_get(sizeof(retry_rule)); | |
3858 | *rchain = rule; | |
3859 | rchain = &(rule->next); | |
3860 | rule->next = NULL; | |
3861 | rule->rule = toupper(*p++); | |
3862 | rule->timeout = retry_arg(&p, 0); | |
3863 | if (rule->timeout > retry_maximum_timeout) | |
3864 | retry_maximum_timeout = rule->timeout; | |
3865 | ||
3866 | switch (rule->rule) | |
3867 | { | |
3868 | case 'F': /* Fixed interval */ | |
3869 | rule->p1 = retry_arg(&p, 0); | |
3870 | break; | |
3871 | ||
3872 | case 'G': /* Geometrically increasing intervals */ | |
6af56900 | 3873 | case 'H': /* Ditto, but with randomness */ |
059ec3d9 PH |
3874 | rule->p1 = retry_arg(&p, 0); |
3875 | rule->p2 = retry_arg(&p, 1); | |
3876 | break; | |
3877 | ||
3878 | default: | |
3879 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter"); | |
3880 | break; | |
3881 | } | |
3882 | ||
3883 | if (rule->timeout <= 0 || rule->p1 <= 0 || | |
6af56900 | 3884 | (rule->rule != 'F' && rule->p2 < 1000)) |
059ec3d9 PH |
3885 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, |
3886 | "bad parameters for retry rule"); | |
3887 | ||
3888 | while (isspace(*p)) p++; | |
3889 | if (*p == ';') | |
3890 | { | |
3891 | p++; | |
3892 | while (isspace(*p)) p++; | |
3893 | } | |
3894 | else if (*p != 0) | |
3895 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected"); | |
3896 | } | |
3897 | } | |
3898 | } | |
3899 | ||
3900 | ||
3901 | ||
3902 | /************************************************* | |
3903 | * Initialize authenticators * | |
3904 | *************************************************/ | |
3905 | ||
3906 | /* Read the authenticators section of the configuration file. | |
3907 | ||
3908 | Arguments: none | |
3909 | Returns: nothing | |
3910 | */ | |
3911 | ||
3912 | static void | |
3913 | auths_init(void) | |
3914 | { | |
3915 | auth_instance *au, *bu; | |
3916 | readconf_driver_init(US"authenticator", | |
3917 | (driver_instance **)(&auths), /* chain anchor */ | |
3918 | (driver_info *)auths_available, /* available drivers */ | |
3919 | sizeof(auth_info), /* size of info block */ | |
3920 | &auth_defaults, /* default values for generic options */ | |
3921 | sizeof(auth_instance), /* size of instance block */ | |
3922 | optionlist_auths, /* generic options */ | |
3923 | optionlist_auths_size); | |
3924 | ||
3925 | for (au = auths; au != NULL; au = au->next) | |
3926 | { | |
3927 | if (au->public_name == NULL) | |
3928 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for " | |
3929 | "the %s authenticator", au->name); | |
3930 | for (bu = au->next; bu != NULL; bu = bu->next) | |
3931 | { | |
3932 | if (strcmpic(au->public_name, bu->public_name) == 0) | |
3933 | { | |
3934 | if ((au->client && bu->client) || (au->server && bu->server)) | |
3935 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators " | |
3936 | "(%s and %s) have the same public name (%s)", | |
3937 | (au->client)? US"client" : US"server", au->name, bu->name, | |
3938 | au->public_name); | |
3939 | } | |
3940 | } | |
3941 | } | |
3942 | } | |
3943 | ||
3944 | ||
3945 | ||
3946 | ||
3947 | /************************************************* | |
3948 | * Read ACL information * | |
3949 | *************************************************/ | |
3950 | ||
3951 | /* If this run of Exim is not doing something that involves receiving a | |
3952 | message, we can just skip over the ACL information. No need to parse it. | |
3953 | ||
3954 | First, we have a function for acl_read() to call back to get the next line. We | |
3955 | need to remember the line we passed, because at the end it will contain the | |
3956 | name of the next ACL. */ | |
3957 | ||
3958 | static uschar *acl_line; | |
3959 | ||
3960 | static uschar * | |
3961 | acl_callback(void) | |
3962 | { | |
3963 | acl_line = get_config_line(); | |
3964 | return acl_line; | |
3965 | } | |
3966 | ||
3967 | ||
3968 | /* Now the main function: | |
3969 | ||
3970 | Arguments: | |
3971 | skip TRUE when this Exim process is doing something that will | |
3972 | not need the ACL data | |
3973 | ||
3974 | Returns: nothing | |
3975 | */ | |
3976 | ||
3977 | static void | |
3978 | readconf_acl(BOOL skip) | |
3979 | { | |
3980 | uschar *p; | |
3981 | ||
3982 | /* Not receiving messages, don't need to parse the ACL data */ | |
3983 | ||
3984 | if (skip) | |
3985 | { | |
3986 | DEBUG(D_acl) debug_printf("skipping ACL configuration - not needed\n"); | |
3987 | while ((p = get_config_line()) != NULL); | |
3988 | return; | |
3989 | } | |
3990 | ||
cf00dad6 PH |
3991 | /* Read each ACL and add it into the tree. Macro (re)definitions are allowed |
3992 | between ACLs. */ | |
059ec3d9 PH |
3993 | |
3994 | acl_line = get_config_line(); | |
3995 | ||
3996 | while(acl_line != NULL) | |
3997 | { | |
3998 | uschar name[64]; | |
3999 | tree_node *node; | |
4000 | uschar *error; | |
4001 | ||
4002 | p = readconf_readname(name, sizeof(name), acl_line); | |
cf00dad6 PH |
4003 | if (isupper(*name) && *p == '=') |
4004 | { | |
4005 | read_macro_assignment(acl_line); | |
4006 | acl_line = get_config_line(); | |
4007 | continue; | |
4008 | } | |
4009 | ||
4010 | if (*p != ':' || name[0] == 0) | |
4011 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name"); | |
059ec3d9 PH |
4012 | |
4013 | node = store_get(sizeof(tree_node) + Ustrlen(name)); | |
4014 | Ustrcpy(node->name, name); | |
4015 | if (!tree_insertnode(&acl_anchor, node)) | |
4016 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4017 | "there are two ACLs called \"%s\"", name); | |
4018 | ||
4019 | node->data.ptr = acl_read(acl_callback, &error); | |
4020 | ||
4021 | if (node->data.ptr == NULL && error != NULL) | |
4022 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error); | |
4023 | } | |
4024 | } | |
4025 | ||
4026 | ||
4027 | ||
4028 | /************************************************* | |
4029 | * Read configuration for local_scan() * | |
4030 | *************************************************/ | |
4031 | ||
4032 | /* This function is called after "begin local_scan" is encountered in the | |
4033 | configuration file. If the local_scan() function allows for configuration | |
4034 | options, we can process them. Otherwise, we expire in a panic. | |
4035 | ||
4036 | Arguments: none | |
4037 | Returns: nothing | |
4038 | */ | |
4039 | ||
4040 | static void | |
4041 | local_scan_init(void) | |
4042 | { | |
4043 | #ifndef LOCAL_SCAN_HAS_OPTIONS | |
4044 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: " | |
4045 | "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)"); | |
4046 | #else | |
4047 | ||
4048 | uschar *p; | |
4049 | while ((p = get_config_line()) != NULL) | |
4050 | { | |
4051 | (void) readconf_handle_option(p, local_scan_options, local_scan_options_count, | |
4052 | NULL, US"local_scan option \"%s\" unknown"); | |
4053 | } | |
4054 | #endif | |
4055 | } | |
4056 | ||
4057 | ||
4058 | ||
4059 | /************************************************* | |
4060 | * Read rest of configuration (after main) * | |
4061 | *************************************************/ | |
4062 | ||
4063 | /* This function reads the rest of the runtime configuration, after the main | |
4064 | configuration. It is called only when actually needed. Each subsequent section | |
4065 | of the configuration starts with a line of the form | |
4066 | ||
4067 | begin name | |
4068 | ||
4069 | where the name is "routers", "transports", etc. A section is terminated by | |
4070 | hitting the next "begin" line, and the next name is left in next_section. | |
4071 | Because it may confuse people as to whether the names are singular or plural, | |
4072 | we add "s" if it's missing. There is always enough room in next_section for | |
4073 | this. This function is basically just a switch. | |
4074 | ||
4075 | Arguments: | |
4076 | skip_acl TRUE if ACL information is not needed | |
4077 | ||
4078 | Returns: nothing | |
4079 | */ | |
4080 | ||
4081 | static uschar *section_list[] = { | |
4082 | US"acls", | |
4083 | US"authenticators", | |
4084 | US"local_scans", | |
4085 | US"retrys", | |
4086 | US"rewrites", | |
4087 | US"routers", | |
4088 | US"transports"}; | |
4089 | ||
4090 | void | |
4091 | readconf_rest(BOOL skip_acl) | |
4092 | { | |
4093 | int had = 0; | |
4094 | ||
4095 | while(next_section[0] != 0) | |
4096 | { | |
4097 | int bit; | |
4098 | int first = 0; | |
4099 | int last = sizeof(section_list) / sizeof(uschar *); | |
4100 | int mid = last/2; | |
4101 | int n = Ustrlen(next_section); | |
4102 | ||
4103 | if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s"); | |
4104 | ||
4105 | for (;;) | |
4106 | { | |
4107 | int c = strcmpic(next_section, section_list[mid]); | |
4108 | if (c == 0) break; | |
4109 | if (c > 0) first = mid + 1; else last = mid; | |
4110 | if (first >= last) | |
4111 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4112 | "\"%.*s\" is not a known configuration section name", n, next_section); | |
4113 | mid = (last + first)/2; | |
4114 | } | |
4115 | ||
4116 | bit = 1 << mid; | |
4117 | if (((had ^= bit) & bit) == 0) | |
4118 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4119 | "\"%.*s\" section is repeated in the configuration file", n, | |
4120 | next_section); | |
4121 | ||
4122 | switch(mid) | |
4123 | { | |
4124 | case 0: readconf_acl(skip_acl); break; | |
4125 | case 1: auths_init(); break; | |
4126 | case 2: local_scan_init(); break; | |
4127 | case 3: readconf_retries(); break; | |
4128 | case 4: readconf_rewrites(); break; | |
4129 | case 5: route_init(); break; | |
4130 | case 6: transport_init(); break; | |
4131 | } | |
4132 | } | |
4133 | ||
f1e894f3 | 4134 | (void)fclose(config_file); |
059ec3d9 PH |
4135 | } |
4136 | ||
4137 | /* End of readconf.c */ |