Commit | Line | Data |
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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 }, | |
80a47a2c TK |
143 | #ifndef DISABLE_DKIM |
144 | { "acl_smtp_dkim", opt_stringptr, &acl_smtp_dkim }, | |
145 | #endif | |
059ec3d9 PH |
146 | { "acl_smtp_etrn", opt_stringptr, &acl_smtp_etrn }, |
147 | { "acl_smtp_expn", opt_stringptr, &acl_smtp_expn }, | |
148 | { "acl_smtp_helo", opt_stringptr, &acl_smtp_helo }, | |
149 | { "acl_smtp_mail", opt_stringptr, &acl_smtp_mail }, | |
150 | { "acl_smtp_mailauth", opt_stringptr, &acl_smtp_mailauth }, | |
8523533c TK |
151 | #ifdef WITH_CONTENT_SCAN |
152 | { "acl_smtp_mime", opt_stringptr, &acl_smtp_mime }, | |
153 | #endif | |
8f128379 | 154 | { "acl_smtp_notquit", opt_stringptr, &acl_smtp_notquit }, |
059ec3d9 PH |
155 | { "acl_smtp_predata", opt_stringptr, &acl_smtp_predata }, |
156 | { "acl_smtp_quit", opt_stringptr, &acl_smtp_quit }, | |
157 | { "acl_smtp_rcpt", opt_stringptr, &acl_smtp_rcpt }, | |
158 | #ifdef SUPPORT_TLS | |
159 | { "acl_smtp_starttls", opt_stringptr, &acl_smtp_starttls }, | |
160 | #endif | |
161 | { "acl_smtp_vrfy", opt_stringptr, &acl_smtp_vrfy }, | |
162 | { "admin_groups", opt_gidlist, &admin_groups }, | |
163 | { "allow_domain_literals", opt_bool, &allow_domain_literals }, | |
164 | { "allow_mx_to_ip", opt_bool, &allow_mx_to_ip }, | |
165 | { "allow_utf8_domains", opt_bool, &allow_utf8_domains }, | |
166 | { "auth_advertise_hosts", opt_stringptr, &auth_advertise_hosts }, | |
167 | { "auto_thaw", opt_time, &auto_thaw }, | |
8523533c TK |
168 | #ifdef WITH_CONTENT_SCAN |
169 | { "av_scanner", opt_stringptr, &av_scanner }, | |
170 | #endif | |
059ec3d9 | 171 | { "bi_command", opt_stringptr, &bi_command }, |
8523533c TK |
172 | #ifdef EXPERIMENTAL_BRIGHTMAIL |
173 | { "bmi_config_file", opt_stringptr, &bmi_config_file }, | |
174 | #endif | |
059ec3d9 PH |
175 | { "bounce_message_file", opt_stringptr, &bounce_message_file }, |
176 | { "bounce_message_text", opt_stringptr, &bounce_message_text }, | |
177 | { "bounce_return_body", opt_bool, &bounce_return_body }, | |
178 | { "bounce_return_message", opt_bool, &bounce_return_message }, | |
179 | { "bounce_return_size_limit", opt_mkint, &bounce_return_size_limit }, | |
180 | { "bounce_sender_authentication",opt_stringptr,&bounce_sender_authentication }, | |
181 | { "callout_domain_negative_expire", opt_time, &callout_cache_domain_negative_expire }, | |
182 | { "callout_domain_positive_expire", opt_time, &callout_cache_domain_positive_expire }, | |
183 | { "callout_negative_expire", opt_time, &callout_cache_negative_expire }, | |
184 | { "callout_positive_expire", opt_time, &callout_cache_positive_expire }, | |
185 | { "callout_random_local_part",opt_stringptr, &callout_random_local_part }, | |
186 | { "check_log_inodes", opt_int, &check_log_inodes }, | |
187 | { "check_log_space", opt_Kint, &check_log_space }, | |
a0d6ba8a | 188 | { "check_rfc2047_length", opt_bool, &check_rfc2047_length }, |
059ec3d9 PH |
189 | { "check_spool_inodes", opt_int, &check_spool_inodes }, |
190 | { "check_spool_space", opt_Kint, &check_spool_space }, | |
191 | { "daemon_smtp_port", opt_stringptr|opt_hidden, &daemon_smtp_port }, | |
192 | { "daemon_smtp_ports", opt_stringptr, &daemon_smtp_port }, | |
4aee0225 PH |
193 | { "daemon_startup_retries", opt_int, &daemon_startup_retries }, |
194 | { "daemon_startup_sleep", opt_time, &daemon_startup_sleep }, | |
6a8f9482 TK |
195 | #ifdef EXPERIMENTAL_DCC |
196 | { "dcc_direct_add_header", opt_bool, &dcc_direct_add_header }, | |
197 | { "dccifd_address", opt_stringptr, &dccifd_address }, | |
198 | { "dccifd_options", opt_stringptr, &dccifd_options }, | |
199 | #endif | |
059ec3d9 PH |
200 | { "delay_warning", opt_timelist, &delay_warning }, |
201 | { "delay_warning_condition", opt_stringptr, &delay_warning_condition }, | |
202 | { "deliver_drop_privilege", opt_bool, &deliver_drop_privilege }, | |
203 | { "deliver_queue_load_max", opt_fixed, &deliver_queue_load_max }, | |
204 | { "delivery_date_remove", opt_bool, &delivery_date_remove }, | |
54fc8428 PH |
205 | #ifdef ENABLE_DISABLE_FSYNC |
206 | { "disable_fsync", opt_bool, &disable_fsync }, | |
207 | #endif | |
7e66e54d | 208 | { "disable_ipv6", opt_bool, &disable_ipv6 }, |
80a47a2c TK |
209 | #ifndef DISABLE_DKIM |
210 | { "dkim_verify_signers", opt_stringptr, &dkim_verify_signers }, | |
211 | #endif | |
059ec3d9 PH |
212 | { "dns_again_means_nonexist", opt_stringptr, &dns_again_means_nonexist }, |
213 | { "dns_check_names_pattern", opt_stringptr, &check_dns_names_pattern }, | |
e5a9dba6 PH |
214 | { "dns_csa_search_limit", opt_int, &dns_csa_search_limit }, |
215 | { "dns_csa_use_reverse", opt_bool, &dns_csa_use_reverse }, | |
059ec3d9 PH |
216 | { "dns_ipv4_lookup", opt_stringptr, &dns_ipv4_lookup }, |
217 | { "dns_retrans", opt_time, &dns_retrans }, | |
218 | { "dns_retry", opt_int, &dns_retry }, | |
1f4a55da | 219 | { "dns_use_dnssec", opt_int, &dns_use_dnssec }, |
e97d1f08 | 220 | { "dns_use_edns0", opt_int, &dns_use_edns0 }, |
059ec3d9 PH |
221 | /* This option is now a no-op, retained for compability */ |
222 | { "drop_cr", opt_bool, &drop_cr }, | |
223 | /*********************************************************/ | |
0e22dfd1 | 224 | { "dsn_from", opt_stringptr, &dsn_from }, |
059ec3d9 PH |
225 | { "envelope_to_remove", opt_bool, &envelope_to_remove }, |
226 | { "errors_copy", opt_stringptr, &errors_copy }, | |
227 | { "errors_reply_to", opt_stringptr, &errors_reply_to }, | |
228 | { "exim_group", opt_gid, &exim_gid }, | |
229 | { "exim_path", opt_stringptr, &exim_path }, | |
230 | { "exim_user", opt_uid, &exim_uid }, | |
231 | { "extra_local_interfaces", opt_stringptr, &extra_local_interfaces }, | |
232 | { "extract_addresses_remove_arguments", opt_bool, &extract_addresses_remove_arguments }, | |
233 | { "finduser_retries", opt_int, &finduser_retries }, | |
234 | { "freeze_tell", opt_stringptr, &freeze_tell }, | |
235 | { "gecos_name", opt_stringptr, &gecos_name }, | |
236 | { "gecos_pattern", opt_stringptr, &gecos_pattern }, | |
83da1223 | 237 | #ifdef SUPPORT_TLS |
e6060e2c | 238 | { "gnutls_compat_mode", opt_bool, &gnutls_compat_mode }, |
b1770b6e | 239 | /* These three gnutls_require_* options stopped working in Exim 4.80 */ |
83da1223 PH |
240 | { "gnutls_require_kx", opt_stringptr, &gnutls_require_kx }, |
241 | { "gnutls_require_mac", opt_stringptr, &gnutls_require_mac }, | |
242 | { "gnutls_require_protocols", opt_stringptr, &gnutls_require_proto }, | |
243 | #endif | |
059ec3d9 PH |
244 | { "header_line_maxsize", opt_int, &header_line_maxsize }, |
245 | { "header_maxsize", opt_int, &header_maxsize }, | |
246 | { "headers_charset", opt_stringptr, &headers_charset }, | |
247 | { "helo_accept_junk_hosts", opt_stringptr, &helo_accept_junk_hosts }, | |
248 | { "helo_allow_chars", opt_stringptr, &helo_allow_chars }, | |
249 | { "helo_lookup_domains", opt_stringptr, &helo_lookup_domains }, | |
250 | { "helo_try_verify_hosts", opt_stringptr, &helo_try_verify_hosts }, | |
251 | { "helo_verify_hosts", opt_stringptr, &helo_verify_hosts }, | |
252 | { "hold_domains", opt_stringptr, &hold_domains }, | |
253 | { "host_lookup", opt_stringptr, &host_lookup }, | |
254 | { "host_lookup_order", opt_stringptr, &host_lookup_order }, | |
255 | { "host_reject_connection", opt_stringptr, &host_reject_connection }, | |
256 | { "hosts_connection_nolog", opt_stringptr, &hosts_connection_nolog }, | |
257 | { "hosts_treat_as_local", opt_stringptr, &hosts_treat_as_local }, | |
258 | #ifdef LOOKUP_IBASE | |
259 | { "ibase_servers", opt_stringptr, &ibase_servers }, | |
260 | #endif | |
261 | { "ignore_bounce_errors_after", opt_time, &ignore_bounce_errors_after }, | |
262 | { "ignore_fromline_hosts", opt_stringptr, &ignore_fromline_hosts }, | |
263 | { "ignore_fromline_local", opt_bool, &ignore_fromline_local }, | |
264 | { "keep_malformed", opt_time, &keep_malformed }, | |
265 | #ifdef LOOKUP_LDAP | |
bc19a55b PP |
266 | { "ldap_ca_cert_dir", opt_stringptr, &eldap_ca_cert_dir }, |
267 | { "ldap_ca_cert_file", opt_stringptr, &eldap_ca_cert_file }, | |
268 | { "ldap_cert_file", opt_stringptr, &eldap_cert_file }, | |
269 | { "ldap_cert_key", opt_stringptr, &eldap_cert_key }, | |
270 | { "ldap_cipher_suite", opt_stringptr, &eldap_cipher_suite }, | |
059ec3d9 | 271 | { "ldap_default_servers", opt_stringptr, &eldap_default_servers }, |
bc19a55b PP |
272 | { "ldap_require_cert", opt_stringptr, &eldap_require_cert }, |
273 | { "ldap_start_tls", opt_bool, &eldap_start_tls }, | |
059ec3d9 PH |
274 | { "ldap_version", opt_int, &eldap_version }, |
275 | #endif | |
276 | { "local_from_check", opt_bool, &local_from_check }, | |
277 | { "local_from_prefix", opt_stringptr, &local_from_prefix }, | |
278 | { "local_from_suffix", opt_stringptr, &local_from_suffix }, | |
279 | { "local_interfaces", opt_stringptr, &local_interfaces }, | |
280 | { "local_scan_timeout", opt_time, &local_scan_timeout }, | |
281 | { "local_sender_retain", opt_bool, &local_sender_retain }, | |
282 | { "localhost_number", opt_stringptr, &host_number_string }, | |
283 | { "log_file_path", opt_stringptr, &log_file_path }, | |
284 | { "log_selector", opt_stringptr, &log_selector_string }, | |
285 | { "log_timezone", opt_bool, &log_timezone }, | |
286 | { "lookup_open_max", opt_int, &lookup_open_max }, | |
287 | { "max_username_length", opt_int, &max_username_length }, | |
ddea74fa | 288 | { "message_body_newlines", opt_bool, &message_body_newlines }, |
059ec3d9 PH |
289 | { "message_body_visible", opt_mkint, &message_body_visible }, |
290 | { "message_id_header_domain", opt_stringptr, &message_id_domain }, | |
291 | { "message_id_header_text", opt_stringptr, &message_id_text }, | |
292 | { "message_logs", opt_bool, &message_logs }, | |
293 | { "message_size_limit", opt_stringptr, &message_size_limit }, | |
294 | #ifdef SUPPORT_MOVE_FROZEN_MESSAGES | |
295 | { "move_frozen_messages", opt_bool, &move_frozen_messages }, | |
296 | #endif | |
297 | { "mua_wrapper", opt_bool, &mua_wrapper }, | |
298 | #ifdef LOOKUP_MYSQL | |
299 | { "mysql_servers", opt_stringptr, &mysql_servers }, | |
300 | #endif | |
301 | { "never_users", opt_uidlist, &never_users }, | |
77bb000f PP |
302 | #ifdef SUPPORT_TLS |
303 | { "openssl_options", opt_stringptr, &openssl_options }, | |
304 | #endif | |
059ec3d9 PH |
305 | #ifdef LOOKUP_ORACLE |
306 | { "oracle_servers", opt_stringptr, &oracle_servers }, | |
307 | #endif | |
308 | { "percent_hack_domains", opt_stringptr, &percent_hack_domains }, | |
309 | #ifdef EXIM_PERL | |
310 | { "perl_at_start", opt_bool, &opt_perl_at_start }, | |
311 | { "perl_startup", opt_stringptr, &opt_perl_startup }, | |
312 | #endif | |
313 | #ifdef LOOKUP_PGSQL | |
314 | { "pgsql_servers", opt_stringptr, &pgsql_servers }, | |
315 | #endif | |
316 | { "pid_file_path", opt_stringptr, &pid_file_path }, | |
317 | { "pipelining_advertise_hosts", opt_stringptr, &pipelining_advertise_hosts }, | |
318 | { "preserve_message_logs", opt_bool, &preserve_message_logs }, | |
319 | { "primary_hostname", opt_stringptr, &primary_hostname }, | |
320 | { "print_topbitchars", opt_bool, &print_topbitchars }, | |
321 | { "process_log_path", opt_stringptr, &process_log_path }, | |
322 | { "prod_requires_admin", opt_bool, &prod_requires_admin }, | |
323 | { "qualify_domain", opt_stringptr, &qualify_domain_sender }, | |
324 | { "qualify_recipient", opt_stringptr, &qualify_domain_recipient }, | |
325 | { "queue_domains", opt_stringptr, &queue_domains }, | |
326 | { "queue_list_requires_admin",opt_bool, &queue_list_requires_admin }, | |
327 | { "queue_only", opt_bool, &queue_only }, | |
328 | { "queue_only_file", opt_stringptr, &queue_only_file }, | |
329 | { "queue_only_load", opt_fixed, &queue_only_load }, | |
8669f003 | 330 | { "queue_only_load_latch", opt_bool, &queue_only_load_latch }, |
059ec3d9 PH |
331 | { "queue_only_override", opt_bool, &queue_only_override }, |
332 | { "queue_run_in_order", opt_bool, &queue_run_in_order }, | |
333 | { "queue_run_max", opt_int, &queue_run_max }, | |
334 | { "queue_smtp_domains", opt_stringptr, &queue_smtp_domains }, | |
335 | { "receive_timeout", opt_time, &receive_timeout }, | |
336 | { "received_header_text", opt_stringptr, &received_header_text }, | |
337 | { "received_headers_max", opt_int, &received_headers_max }, | |
338 | { "recipient_unqualified_hosts", opt_stringptr, &recipient_unqualified_hosts }, | |
339 | { "recipients_max", opt_int, &recipients_max }, | |
340 | { "recipients_max_reject", opt_bool, &recipients_max_reject }, | |
341 | { "remote_max_parallel", opt_int, &remote_max_parallel }, | |
342 | { "remote_sort_domains", opt_stringptr, &remote_sort_domains }, | |
343 | { "retry_data_expire", opt_time, &retry_data_expire }, | |
344 | { "retry_interval_max", opt_time, &retry_interval_max }, | |
345 | { "return_path_remove", opt_bool, &return_path_remove }, | |
346 | { "return_size_limit", opt_mkint|opt_hidden, &bounce_return_size_limit }, | |
347 | { "rfc1413_hosts", opt_stringptr, &rfc1413_hosts }, | |
348 | { "rfc1413_query_timeout", opt_time, &rfc1413_query_timeout }, | |
349 | { "sender_unqualified_hosts", opt_stringptr, &sender_unqualified_hosts }, | |
350 | { "smtp_accept_keepalive", opt_bool, &smtp_accept_keepalive }, | |
351 | { "smtp_accept_max", opt_int, &smtp_accept_max }, | |
352 | { "smtp_accept_max_nonmail", opt_int, &smtp_accept_max_nonmail }, | |
353 | { "smtp_accept_max_nonmail_hosts", opt_stringptr, &smtp_accept_max_nonmail_hosts }, | |
354 | { "smtp_accept_max_per_connection", opt_int, &smtp_accept_max_per_connection }, | |
355 | { "smtp_accept_max_per_host", opt_stringptr, &smtp_accept_max_per_host }, | |
356 | { "smtp_accept_queue", opt_int, &smtp_accept_queue }, | |
357 | { "smtp_accept_queue_per_connection", opt_int, &smtp_accept_queue_per_connection }, | |
358 | { "smtp_accept_reserve", opt_int, &smtp_accept_reserve }, | |
359 | { "smtp_active_hostname", opt_stringptr, &raw_active_hostname }, | |
360 | { "smtp_banner", opt_stringptr, &smtp_banner }, | |
361 | { "smtp_check_spool_space", opt_bool, &smtp_check_spool_space }, | |
362 | { "smtp_connect_backlog", opt_int, &smtp_connect_backlog }, | |
363 | { "smtp_enforce_sync", opt_bool, &smtp_enforce_sync }, | |
364 | { "smtp_etrn_command", opt_stringptr, &smtp_etrn_command }, | |
365 | { "smtp_etrn_serialize", opt_bool, &smtp_etrn_serialize }, | |
366 | { "smtp_load_reserve", opt_fixed, &smtp_load_reserve }, | |
367 | { "smtp_max_synprot_errors", opt_int, &smtp_max_synprot_errors }, | |
368 | { "smtp_max_unknown_commands",opt_int, &smtp_max_unknown_commands }, | |
369 | { "smtp_ratelimit_hosts", opt_stringptr, &smtp_ratelimit_hosts }, | |
370 | { "smtp_ratelimit_mail", opt_stringptr, &smtp_ratelimit_mail }, | |
371 | { "smtp_ratelimit_rcpt", opt_stringptr, &smtp_ratelimit_rcpt }, | |
372 | { "smtp_receive_timeout", opt_time, &smtp_receive_timeout }, | |
373 | { "smtp_reserve_hosts", opt_stringptr, &smtp_reserve_hosts }, | |
374 | { "smtp_return_error_details",opt_bool, &smtp_return_error_details }, | |
8523533c TK |
375 | #ifdef WITH_CONTENT_SCAN |
376 | { "spamd_address", opt_stringptr, &spamd_address }, | |
65a7d8c3 NM |
377 | #endif |
378 | #ifdef EXPERIMENTAL_SPF | |
379 | { "spf_guess", opt_stringptr, &spf_guess }, | |
8523533c | 380 | #endif |
059ec3d9 PH |
381 | { "split_spool_directory", opt_bool, &split_spool_directory }, |
382 | { "spool_directory", opt_stringptr, &spool_directory }, | |
31480e42 PH |
383 | #ifdef LOOKUP_SQLITE |
384 | { "sqlite_lock_timeout", opt_int, &sqlite_lock_timeout }, | |
385 | #endif | |
8523533c TK |
386 | #ifdef EXPERIMENTAL_SRS |
387 | { "srs_config", opt_stringptr, &srs_config }, | |
384152a6 TK |
388 | { "srs_hashlength", opt_int, &srs_hashlength }, |
389 | { "srs_hashmin", opt_int, &srs_hashmin }, | |
390 | { "srs_maxage", opt_int, &srs_maxage }, | |
391 | { "srs_secrets", opt_stringptr, &srs_secrets }, | |
392 | { "srs_usehash", opt_bool, &srs_usehash }, | |
393 | { "srs_usetimestamp", opt_bool, &srs_usetimestamp }, | |
8523533c | 394 | #endif |
38a0a95f | 395 | { "strict_acl_vars", opt_bool, &strict_acl_vars }, |
059ec3d9 PH |
396 | { "strip_excess_angle_brackets", opt_bool, &strip_excess_angle_brackets }, |
397 | { "strip_trailing_dot", opt_bool, &strip_trailing_dot }, | |
398 | { "syslog_duplication", opt_bool, &syslog_duplication }, | |
399 | { "syslog_facility", opt_stringptr, &syslog_facility_str }, | |
400 | { "syslog_processname", opt_stringptr, &syslog_processname }, | |
401 | { "syslog_timestamp", opt_bool, &syslog_timestamp }, | |
402 | { "system_filter", opt_stringptr, &system_filter }, | |
403 | { "system_filter_directory_transport", opt_stringptr,&system_filter_directory_transport }, | |
404 | { "system_filter_file_transport",opt_stringptr,&system_filter_file_transport }, | |
405 | { "system_filter_group", opt_gid, &system_filter_gid }, | |
406 | { "system_filter_pipe_transport",opt_stringptr,&system_filter_pipe_transport }, | |
407 | { "system_filter_reply_transport",opt_stringptr,&system_filter_reply_transport }, | |
408 | { "system_filter_user", opt_uid, &system_filter_uid }, | |
409 | { "tcp_nodelay", opt_bool, &tcp_nodelay }, | |
5dc43717 JJ |
410 | #ifdef USE_TCP_WRAPPERS |
411 | { "tcp_wrappers_daemon_name", opt_stringptr, &tcp_wrappers_daemon_name }, | |
412 | #endif | |
059ec3d9 PH |
413 | { "timeout_frozen_after", opt_time, &timeout_frozen_after }, |
414 | { "timezone", opt_stringptr, &timezone_string }, | |
415 | #ifdef SUPPORT_TLS | |
416 | { "tls_advertise_hosts", opt_stringptr, &tls_advertise_hosts }, | |
417 | { "tls_certificate", opt_stringptr, &tls_certificate }, | |
418 | { "tls_crl", opt_stringptr, &tls_crl }, | |
3375e053 | 419 | { "tls_dh_max_bits", opt_int, &tls_dh_max_bits }, |
059ec3d9 | 420 | { "tls_dhparam", opt_stringptr, &tls_dhparam }, |
3f7eeb86 PP |
421 | #if defined(EXPERIMENTAL_OCSP) && !defined(USE_GNUTLS) |
422 | { "tls_ocsp_file", opt_stringptr, &tls_ocsp_file }, | |
423 | #endif | |
059ec3d9 PH |
424 | { "tls_on_connect_ports", opt_stringptr, &tls_on_connect_ports }, |
425 | { "tls_privatekey", opt_stringptr, &tls_privatekey }, | |
426 | { "tls_remember_esmtp", opt_bool, &tls_remember_esmtp }, | |
427 | { "tls_require_ciphers", opt_stringptr, &tls_require_ciphers }, | |
428 | { "tls_try_verify_hosts", opt_stringptr, &tls_try_verify_hosts }, | |
429 | { "tls_verify_certificates", opt_stringptr, &tls_verify_certificates }, | |
430 | { "tls_verify_hosts", opt_stringptr, &tls_verify_hosts }, | |
431 | #endif | |
432 | { "trusted_groups", opt_gidlist, &trusted_groups }, | |
433 | { "trusted_users", opt_uidlist, &trusted_users }, | |
434 | { "unknown_login", opt_stringptr, &unknown_login }, | |
435 | { "unknown_username", opt_stringptr, &unknown_username }, | |
436 | { "untrusted_set_sender", opt_stringptr, &untrusted_set_sender }, | |
437 | { "uucp_from_pattern", opt_stringptr, &uucp_from_pattern }, | |
438 | { "uucp_from_sender", opt_stringptr, &uucp_from_sender }, | |
439 | { "warn_message_file", opt_stringptr, &warn_message_file }, | |
440 | { "write_rejectlog", opt_bool, &write_rejectlog } | |
441 | }; | |
442 | ||
443 | static int optionlist_config_size = | |
444 | sizeof(optionlist_config)/sizeof(optionlist); | |
445 | ||
446 | ||
447 | ||
448 | /************************************************* | |
449 | * Find the name of an option * | |
450 | *************************************************/ | |
451 | ||
452 | /* This function is to aid debugging. Various functions take arguments that are | |
453 | pointer variables in the options table or in option tables for various drivers. | |
454 | For debugging output, it is useful to be able to find the name of the option | |
455 | which is currently being processed. This function finds it, if it exists, by | |
456 | searching the table(s). | |
457 | ||
458 | Arguments: a value that is presumed to be in the table above | |
459 | Returns: the option name, or an empty string | |
460 | */ | |
461 | ||
462 | uschar * | |
463 | readconf_find_option(void *p) | |
464 | { | |
465 | int i; | |
466 | router_instance *r; | |
467 | transport_instance *t; | |
468 | ||
469 | for (i = 0; i < optionlist_config_size; i++) | |
470 | if (p == optionlist_config[i].value) return US optionlist_config[i].name; | |
471 | ||
472 | for (r = routers; r != NULL; r = r->next) | |
473 | { | |
474 | router_info *ri = r->info; | |
475 | for (i = 0; i < ri->options_count[0]; i++) | |
476 | { | |
477 | if ((ri->options[i].type & opt_mask) != opt_stringptr) continue; | |
478 | if (p == (char *)(r->options_block) + (long int)(ri->options[i].value)) | |
479 | return US ri->options[i].name; | |
480 | } | |
481 | } | |
482 | ||
483 | for (t = transports; t != NULL; t = t->next) | |
484 | { | |
485 | transport_info *ti = t->info; | |
486 | for (i = 0; i < ti->options_count[0]; i++) | |
487 | { | |
488 | if ((ti->options[i].type & opt_mask) != opt_stringptr) continue; | |
489 | if (p == (char *)(t->options_block) + (long int)(ti->options[i].value)) | |
490 | return US ti->options[i].name; | |
491 | } | |
492 | } | |
493 | ||
494 | return US""; | |
495 | } | |
496 | ||
497 | ||
498 | ||
499 | ||
cf00dad6 PH |
500 | /************************************************* |
501 | * Deal with an assignment to a macro * | |
502 | *************************************************/ | |
503 | ||
504 | /* This function is called when a line that starts with an upper case letter is | |
505 | encountered. The argument "line" should contain a complete logical line, and | |
506 | start with the first letter of the macro name. The macro name and the | |
507 | replacement text are extracted and stored. Redefinition of existing, | |
508 | non-command line, macros is permitted using '==' instead of '='. | |
509 | ||
510 | Arguments: | |
511 | s points to the start of the logical line | |
512 | ||
513 | Returns: nothing | |
514 | */ | |
515 | ||
516 | static void | |
517 | read_macro_assignment(uschar *s) | |
518 | { | |
519 | uschar name[64]; | |
520 | int namelen = 0; | |
521 | BOOL redef = FALSE; | |
522 | macro_item *m; | |
523 | macro_item *mlast = NULL; | |
524 | ||
525 | while (isalnum(*s) || *s == '_') | |
526 | { | |
527 | if (namelen >= sizeof(name) - 1) | |
528 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
ef840681 | 529 | "macro name too long (maximum is " SIZE_T_FMT " characters)", sizeof(name) - 1); |
cf00dad6 PH |
530 | name[namelen++] = *s++; |
531 | } | |
532 | name[namelen] = 0; | |
533 | ||
534 | while (isspace(*s)) s++; | |
535 | if (*s++ != '=') | |
536 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "malformed macro definition"); | |
537 | ||
538 | if (*s == '=') | |
539 | { | |
540 | redef = TRUE; | |
541 | s++; | |
542 | } | |
543 | while (isspace(*s)) s++; | |
544 | ||
545 | /* If an existing macro of the same name was defined on the command line, we | |
546 | just skip this definition. It's an error to attempt to redefine a macro without | |
547 | redef set to TRUE, or to redefine a macro when it hasn't been defined earlier. | |
548 | It is also an error to define a macro whose name begins with the name of a | |
549 | previously defined macro. Note: it is documented that the other way round | |
550 | works. */ | |
551 | ||
552 | for (m = macros; m != NULL; m = m->next) | |
553 | { | |
554 | int len = Ustrlen(m->name); | |
555 | ||
556 | if (Ustrcmp(m->name, name) == 0) | |
557 | { | |
558 | if (!m->command_line && !redef) | |
559 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "macro \"%s\" is already " | |
560 | "defined (use \"==\" if you want to redefine it", name); | |
561 | break; | |
562 | } | |
563 | ||
564 | if (len < namelen && Ustrstr(name, m->name) != NULL) | |
565 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as " | |
566 | "a macro because previously defined macro \"%s\" is a substring", | |
567 | name, m->name); | |
568 | ||
569 | /* We cannot have this test, because it is documented that a substring | |
570 | macro is permitted (there is even an example). | |
571 | * | |
572 | * if (len > namelen && Ustrstr(m->name, name) != NULL) | |
573 | * log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "\"%s\" cannot be defined as " | |
574 | * "a macro because it is a substring of previously defined macro \"%s\"", | |
575 | * name, m->name); | |
576 | */ | |
577 | ||
578 | mlast = m; | |
579 | } | |
580 | ||
581 | /* Check for an overriding command-line definition. */ | |
582 | ||
583 | if (m != NULL && m->command_line) return; | |
584 | ||
585 | /* Redefinition must refer to an existing macro. */ | |
586 | ||
587 | if (redef) | |
588 | { | |
589 | if (m == NULL) | |
590 | log_write(0, LOG_CONFIG|LOG_PANIC_DIE, "can't redefine an undefined macro " | |
591 | "\"%s\"", name); | |
592 | } | |
593 | ||
594 | /* We have a new definition. The macro_item structure includes a final vector | |
595 | called "name" which is one byte long. Thus, adding "namelen" gives us enough | |
596 | room to store the "name" string. */ | |
597 | ||
598 | else | |
599 | { | |
600 | m = store_get(sizeof(macro_item) + namelen); | |
601 | if (macros == NULL) macros = m; else mlast->next = m; | |
602 | Ustrncpy(m->name, name, namelen); | |
603 | m->name[namelen] = 0; | |
604 | m->next = NULL; | |
605 | m->command_line = FALSE; | |
606 | } | |
607 | ||
608 | /* Set the value of the new or redefined macro */ | |
609 | ||
610 | m->replacement = string_copy(s); | |
611 | } | |
612 | ||
613 | ||
614 | ||
615 | ||
059ec3d9 PH |
616 | |
617 | /************************************************* | |
618 | * Read configuration line * | |
619 | *************************************************/ | |
620 | ||
621 | /* A logical line of text is read from the configuration file into the big | |
622 | buffer, taking account of macros, .includes, and continuations. The size of | |
623 | big_buffer is increased if necessary. The count of configuration lines is | |
624 | maintained. Physical input lines starting with # (ignoring leading white space, | |
625 | and after macro replacement) and empty logical lines are always ignored. | |
626 | Leading and trailing spaces are removed. | |
627 | ||
628 | If we hit a line of the form "begin xxxx", the xxxx is placed in the | |
629 | next_section vector, and the function returns NULL, indicating the end of a | |
630 | configuration section. On end-of-file, NULL is returned with next_section | |
631 | empty. | |
632 | ||
633 | Arguments: none | |
634 | ||
635 | Returns: a pointer to the first non-blank in the line, | |
636 | or NULL if eof or end of section is reached | |
637 | */ | |
638 | ||
639 | static uschar * | |
640 | get_config_line(void) | |
641 | { | |
642 | int startoffset = 0; /* To first non-blank char in logical line */ | |
643 | int len = 0; /* Of logical line so far */ | |
644 | int newlen; | |
645 | uschar *s, *ss; | |
646 | macro_item *m; | |
647 | BOOL macro_found; | |
648 | ||
649 | /* Loop for handling continuation lines, skipping comments, and dealing with | |
650 | .include files. */ | |
651 | ||
652 | for (;;) | |
653 | { | |
654 | if (Ufgets(big_buffer+len, big_buffer_size-len, config_file) == NULL) | |
655 | { | |
656 | if (config_file_stack != NULL) /* EOF inside .include */ | |
657 | { | |
f1e894f3 | 658 | (void)fclose(config_file); |
059ec3d9 PH |
659 | config_file = config_file_stack->file; |
660 | config_filename = config_file_stack->filename; | |
661 | config_lineno = config_file_stack->lineno; | |
662 | config_file_stack = config_file_stack->next; | |
663 | continue; | |
664 | } | |
665 | ||
666 | /* EOF at top level */ | |
667 | ||
668 | if (cstate_stack_ptr >= 0) | |
669 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
670 | "Unexpected end of configuration file: .endif missing"); | |
671 | ||
672 | if (len != 0) break; /* EOF after continuation */ | |
673 | next_section[0] = 0; /* EOF at start of logical line */ | |
674 | return NULL; | |
675 | } | |
676 | ||
677 | config_lineno++; | |
678 | newlen = len + Ustrlen(big_buffer + len); | |
679 | ||
680 | /* Handle pathologically long physical lines - yes, it did happen - by | |
681 | extending big_buffer at this point. The code also copes with very long | |
682 | logical lines. */ | |
683 | ||
684 | while (newlen == big_buffer_size - 1 && big_buffer[newlen - 1] != '\n') | |
685 | { | |
686 | uschar *newbuffer; | |
687 | big_buffer_size += BIG_BUFFER_SIZE; | |
688 | newbuffer = store_malloc(big_buffer_size); | |
689 | ||
690 | /* This use of strcpy is OK because we know that the string in the old | |
691 | buffer is shorter than the new buffer. */ | |
692 | ||
693 | Ustrcpy(newbuffer, big_buffer); | |
694 | store_free(big_buffer); | |
695 | big_buffer = newbuffer; | |
696 | if (Ufgets(big_buffer+newlen, big_buffer_size-newlen, config_file) == NULL) | |
697 | break; | |
698 | newlen += Ustrlen(big_buffer + newlen); | |
699 | } | |
700 | ||
701 | /* Find the true start of the physical line - leading spaces are always | |
702 | ignored. */ | |
703 | ||
704 | ss = big_buffer + len; | |
705 | while (isspace(*ss)) ss++; | |
706 | ||
707 | /* Process the physical line for macros. If this is the start of the logical | |
708 | line, skip over initial text at the start of the line if it starts with an | |
709 | upper case character followed by a sequence of name characters and an equals | |
710 | sign, because that is the definition of a new macro, and we don't do | |
711 | replacement therein. */ | |
712 | ||
713 | s = ss; | |
714 | if (len == 0 && isupper(*s)) | |
715 | { | |
716 | while (isalnum(*s) || *s == '_') s++; | |
717 | while (isspace(*s)) s++; | |
718 | if (*s != '=') s = ss; /* Not a macro definition */ | |
719 | } | |
720 | ||
721 | /* For each defined macro, scan the line (from after XXX= if present), | |
722 | replacing all occurrences of the macro. */ | |
723 | ||
724 | macro_found = FALSE; | |
725 | for (m = macros; m != NULL; m = m->next) | |
726 | { | |
727 | uschar *p, *pp; | |
728 | uschar *t = s; | |
729 | ||
730 | while ((p = Ustrstr(t, m->name)) != NULL) | |
731 | { | |
732 | int moveby; | |
733 | int namelen = Ustrlen(m->name); | |
734 | int replen = Ustrlen(m->replacement); | |
735 | ||
736 | /* Expand the buffer if necessary */ | |
737 | ||
738 | while (newlen - namelen + replen + 1 > big_buffer_size) | |
739 | { | |
740 | int newsize = big_buffer_size + BIG_BUFFER_SIZE; | |
741 | uschar *newbuffer = store_malloc(newsize); | |
742 | memcpy(newbuffer, big_buffer, newlen + 1); | |
743 | p = newbuffer + (p - big_buffer); | |
744 | s = newbuffer + (s - big_buffer); | |
745 | ss = newbuffer + (ss - big_buffer); | |
746 | t = newbuffer + (t - big_buffer); | |
747 | big_buffer_size = newsize; | |
748 | store_free(big_buffer); | |
749 | big_buffer = newbuffer; | |
750 | } | |
751 | ||
752 | /* Shuffle the remaining characters up or down in the buffer before | |
753 | copying in the replacement text. Don't rescan the replacement for this | |
754 | same macro. */ | |
755 | ||
756 | pp = p + namelen; | |
757 | moveby = replen - namelen; | |
758 | if (moveby != 0) | |
759 | { | |
760 | memmove(p + replen, pp, (big_buffer + newlen) - pp + 1); | |
761 | newlen += moveby; | |
762 | } | |
763 | Ustrncpy(p, m->replacement, replen); | |
764 | t = p + replen; | |
765 | macro_found = TRUE; | |
766 | } | |
767 | } | |
768 | ||
769 | /* An empty macro replacement at the start of a line could mean that ss no | |
770 | longer points to the first non-blank character. */ | |
771 | ||
772 | while (isspace(*ss)) ss++; | |
773 | ||
774 | /* Check for comment lines - these are physical lines. */ | |
775 | ||
776 | if (*ss == '#') continue; | |
777 | ||
778 | /* Handle conditionals, which are also applied to physical lines. Conditions | |
779 | are of the form ".ifdef ANYTEXT" and are treated as true if any macro | |
780 | expansion occured on the rest of the line. A preliminary test for the leading | |
781 | '.' saves effort on most lines. */ | |
782 | ||
783 | if (*ss == '.') | |
784 | { | |
785 | int i; | |
786 | ||
787 | /* Search the list of conditional directives */ | |
788 | ||
789 | for (i = 0; i < cond_list_size; i++) | |
790 | { | |
791 | int n; | |
792 | cond_item *c = cond_list+i; | |
793 | if (Ustrncmp(ss+1, c->name, c->namelen) != 0) continue; | |
794 | ||
795 | /* The following character must be white space or end of string */ | |
796 | ||
797 | n = ss[1 + c->namelen]; | |
798 | if (n != ' ' && n != 't' && n != '\n' && n != 0) break; | |
799 | ||
800 | /* .ifdef and .ifndef push the current state onto the stack, then set | |
801 | a new one from the table. Stack overflow is an error */ | |
802 | ||
803 | if (c->pushpop > 0) | |
804 | { | |
805 | if (cstate_stack_ptr >= CSTATE_STACK_SIZE - 1) | |
806 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
807 | ".%s nested too deeply", c->name); | |
808 | cstate_stack[++cstate_stack_ptr] = cstate; | |
809 | cstate = next_cstate[cstate][macro_found? c->action1 : c->action2]; | |
810 | } | |
811 | ||
812 | /* For any of the others, stack underflow is an error. The next state | |
813 | comes either from the stack (.endif) or from the table. */ | |
814 | ||
815 | else | |
816 | { | |
817 | if (cstate_stack_ptr < 0) | |
818 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
819 | ".%s without matching .ifdef", c->name); | |
820 | cstate = (c->pushpop < 0)? cstate_stack[cstate_stack_ptr--] : | |
821 | next_cstate[cstate][macro_found? c->action1 : c->action2]; | |
822 | } | |
823 | ||
824 | /* Having dealt with a directive, break the loop */ | |
825 | ||
826 | break; | |
827 | } | |
828 | ||
829 | /* If we have handled a conditional directive, continue with the next | |
830 | physical line. Otherwise, fall through. */ | |
831 | ||
832 | if (i < cond_list_size) continue; | |
833 | } | |
834 | ||
835 | /* If the conditional state is not 0 (actively using these lines), ignore | |
836 | this input line. */ | |
837 | ||
838 | if (cstate != 0) continue; /* Conditional skip */ | |
839 | ||
840 | /* Handle .include lines - these are also physical lines. */ | |
841 | ||
842 | if (Ustrncmp(ss, ".include", 8) == 0 && | |
843 | (isspace(ss[8]) || | |
844 | (Ustrncmp(ss+8, "_if_exists", 10) == 0 && isspace(ss[18])))) | |
845 | { | |
846 | uschar *t; | |
847 | int include_if_exists = isspace(ss[8])? 0 : 10; | |
848 | config_file_item *save; | |
849 | struct stat statbuf; | |
850 | ||
851 | ss += 9 + include_if_exists; | |
852 | while (isspace(*ss)) ss++; | |
853 | t = ss + Ustrlen(ss); | |
854 | while (t > ss && isspace(t[-1])) t--; | |
855 | if (*ss == '\"' && t[-1] == '\"') | |
856 | { | |
857 | ss++; | |
858 | t--; | |
859 | } | |
860 | *t = 0; | |
861 | ||
145396a6 PH |
862 | if (*ss != '/') |
863 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, ".include specifies a non-" | |
864 | "absolute path \"%s\"", ss); | |
865 | ||
059ec3d9 PH |
866 | if (include_if_exists != 0 && (Ustat(ss, &statbuf) != 0)) continue; |
867 | ||
868 | save = store_get(sizeof(config_file_item)); | |
869 | save->next = config_file_stack; | |
870 | config_file_stack = save; | |
871 | save->file = config_file; | |
872 | save->filename = config_filename; | |
873 | save->lineno = config_lineno; | |
874 | ||
875 | config_file = Ufopen(ss, "rb"); | |
876 | if (config_file == NULL) | |
877 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to open included " | |
878 | "configuration file %s", ss); | |
879 | config_filename = string_copy(ss); | |
880 | config_lineno = 0; | |
881 | continue; | |
882 | } | |
883 | ||
884 | /* If this is the start of the logical line, remember where the non-blank | |
885 | data starts. Otherwise shuffle down continuation lines to remove leading | |
886 | white space. */ | |
887 | ||
888 | if (len == 0) | |
889 | startoffset = ss - big_buffer; | |
890 | else | |
891 | { | |
892 | s = big_buffer + len; | |
893 | if (ss > s) | |
894 | { | |
895 | memmove(s, ss, (newlen - len) - (ss - s) + 1); | |
896 | newlen -= ss - s; | |
897 | } | |
898 | } | |
899 | ||
900 | /* Accept the new addition to the line. Remove trailing white space. */ | |
901 | ||
902 | len = newlen; | |
903 | while (len > 0 && isspace(big_buffer[len-1])) len--; | |
904 | big_buffer[len] = 0; | |
905 | ||
906 | /* We are done if the line does not end in backslash and contains some data. | |
907 | Empty logical lines are ignored. For continuations, remove the backslash and | |
908 | go round the loop to read the continuation line. */ | |
909 | ||
910 | if (len > 0) | |
911 | { | |
912 | if (big_buffer[len-1] != '\\') break; /* End of logical line */ | |
913 | big_buffer[--len] = 0; /* Remove backslash */ | |
914 | } | |
915 | } /* Loop for reading multiple physical lines */ | |
916 | ||
917 | /* We now have a logical line. Test for the end of a configuration section (or, | |
918 | more accurately, for the start of the next section). Place the name of the next | |
919 | section in next_section, and return NULL. If the name given is longer than | |
920 | next_section, truncate it. It will be unrecognized later, because all the known | |
921 | section names do fit. Leave space for pluralizing. */ | |
922 | ||
923 | s = big_buffer + startoffset; /* First non-space character */ | |
924 | if (strncmpic(s, US"begin ", 6) == 0) | |
925 | { | |
926 | s += 6; | |
927 | while (isspace(*s)) s++; | |
928 | if (big_buffer + len - s > sizeof(next_section) - 2) | |
929 | s[sizeof(next_section) - 2] = 0; | |
930 | Ustrcpy(next_section, s); | |
931 | return NULL; | |
932 | } | |
933 | ||
934 | /* Return the first non-blank character. */ | |
935 | ||
936 | return s; | |
937 | } | |
938 | ||
939 | ||
940 | ||
941 | /************************************************* | |
942 | * Read a name * | |
943 | *************************************************/ | |
944 | ||
945 | /* The yield is the pointer to the next uschar. Names longer than the | |
946 | output space are silently truncated. This function is also used from acl.c when | |
947 | parsing ACLs. | |
948 | ||
949 | Arguments: | |
950 | name where to put the name | |
951 | len length of name | |
952 | s input pointer | |
953 | ||
954 | Returns: new input pointer | |
955 | */ | |
956 | ||
957 | uschar * | |
958 | readconf_readname(uschar *name, int len, uschar *s) | |
959 | { | |
960 | int p = 0; | |
961 | while (isspace(*s)) s++; | |
962 | if (isalpha(*s)) | |
963 | { | |
964 | while (isalnum(*s) || *s == '_') | |
965 | { | |
966 | if (p < len-1) name[p++] = *s; | |
967 | s++; | |
968 | } | |
969 | } | |
970 | name[p] = 0; | |
971 | while (isspace(*s)) s++; | |
972 | return s; | |
973 | } | |
974 | ||
975 | ||
976 | ||
977 | ||
978 | /************************************************* | |
979 | * Read a time value * | |
980 | *************************************************/ | |
981 | ||
982 | /* This function is also called from outside, to read argument | |
983 | time values. The format of a time value is: | |
984 | ||
985 | [<n>w][<n>d][<n>h][<n>m][<n>s] | |
986 | ||
987 | as long as at least one is present. If a format error is encountered, | |
988 | return a negative value. The value must be terminated by the given | |
989 | terminator. | |
990 | ||
991 | Arguments: | |
992 | s input pointer | |
993 | terminator required terminating character | |
994 | return_msec if TRUE, allow fractional seconds and return milliseconds | |
995 | ||
996 | Returns: the time value, or -1 on syntax error | |
997 | value is seconds if return_msec is FALSE | |
998 | value is milliseconds if return_msec is TRUE | |
999 | */ | |
1000 | ||
1001 | int | |
1002 | readconf_readtime(uschar *s, int terminator, BOOL return_msec) | |
1003 | { | |
1004 | int yield = 0; | |
1005 | for (;;) | |
1006 | { | |
1007 | int value, count; | |
1008 | double fraction; | |
1009 | ||
1010 | if (!isdigit(*s)) return -1; | |
1011 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1012 | s += count; | |
1013 | ||
1014 | switch (*s) | |
1015 | { | |
1016 | case 'w': value *= 7; | |
1017 | case 'd': value *= 24; | |
1018 | case 'h': value *= 60; | |
1019 | case 'm': value *= 60; | |
1020 | case 's': s++; | |
1021 | break; | |
1022 | ||
1023 | case '.': | |
1024 | if (!return_msec) return -1; | |
1025 | (void)sscanf(CS s, "%lf%n", &fraction, &count); | |
1026 | s += count; | |
1027 | if (*s++ != 's') return -1; | |
1028 | yield += (int)(fraction * 1000.0); | |
1029 | break; | |
1030 | ||
1031 | default: return -1; | |
1032 | } | |
1033 | ||
1034 | if (return_msec) value *= 1000; | |
1035 | yield += value; | |
1036 | if (*s == terminator) return yield; | |
1037 | } | |
1038 | /* Control never reaches here. */ | |
1039 | } | |
1040 | ||
1041 | ||
1042 | ||
1043 | /************************************************* | |
1044 | * Read a fixed point value * | |
1045 | *************************************************/ | |
1046 | ||
1047 | /* The value is returned *1000 | |
1048 | ||
1049 | Arguments: | |
1050 | s input pointer | |
1051 | terminator required terminator | |
1052 | ||
1053 | Returns: the value, or -1 on error | |
1054 | */ | |
1055 | ||
1056 | static int | |
1057 | readconf_readfixed(uschar *s, int terminator) | |
1058 | { | |
1059 | int yield = 0; | |
1060 | int value, count; | |
1061 | if (!isdigit(*s)) return -1; | |
1062 | (void)sscanf(CS s, "%d%n", &value, &count); | |
1063 | s += count; | |
1064 | yield = value * 1000; | |
1065 | if (*s == '.') | |
1066 | { | |
1067 | int m = 100; | |
1068 | while (isdigit((*(++s)))) | |
1069 | { | |
1070 | yield += (*s - '0') * m; | |
1071 | m /= 10; | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | return (*s == terminator)? yield : (-1); | |
1076 | } | |
1077 | ||
1078 | ||
1079 | ||
1080 | /************************************************* | |
1081 | * Find option in list * | |
1082 | *************************************************/ | |
1083 | ||
1084 | /* The lists are always in order, so binary chop can be used. | |
1085 | ||
1086 | Arguments: | |
1087 | name the option name to search for | |
1088 | ol the first entry in the option list | |
1089 | last one more than the offset of the last entry in the option list | |
1090 | ||
1091 | Returns: pointer to an option entry, or NULL if not found | |
1092 | */ | |
1093 | ||
1094 | static optionlist * | |
1095 | find_option(uschar *name, optionlist *ol, int last) | |
1096 | { | |
1097 | int first = 0; | |
1098 | while (last > first) | |
1099 | { | |
1100 | int middle = (first + last)/2; | |
1101 | int c = Ustrcmp(name, ol[middle].name); | |
1102 | if (c == 0) return ol + middle; | |
1103 | else if (c > 0) first = middle + 1; | |
1104 | else last = middle; | |
1105 | } | |
1106 | return NULL; | |
1107 | } | |
1108 | ||
1109 | ||
1110 | ||
1111 | /************************************************* | |
1112 | * Find a set flag in option list * | |
1113 | *************************************************/ | |
1114 | ||
1115 | /* Because some versions of Unix make no restrictions on the values of uids and | |
1116 | gids (even negative ones), we cannot represent "unset" by a special value. | |
1117 | There is therefore a separate boolean variable for each one indicating whether | |
1118 | a value is set or not. This function returns a pointer to the boolean, given | |
1119 | the original option name. It is a major disaster if the flag cannot be found. | |
1120 | ||
1121 | Arguments: | |
1122 | name the name of the uid or gid option | |
1123 | oltop points to the start of the relevant option list | |
1124 | last one more than the offset of the last item in the option list | |
1125 | data_block NULL when reading main options => data values in the option | |
1126 | list are absolute addresses; otherwise they are byte offsets | |
1127 | in data_block (used for driver options) | |
1128 | ||
1129 | Returns: a pointer to the boolean flag. | |
1130 | */ | |
1131 | ||
1132 | static BOOL * | |
1133 | get_set_flag(uschar *name, optionlist *oltop, int last, void *data_block) | |
1134 | { | |
1135 | optionlist *ol; | |
1136 | uschar name2[64]; | |
1137 | sprintf(CS name2, "*set_%.50s", name); | |
1138 | ol = find_option(name2, oltop, last); | |
1139 | if (ol == NULL) log_write(0, LOG_MAIN|LOG_PANIC_DIE, | |
1140 | "Exim internal error: missing set flag for %s", name); | |
1141 | return (data_block == NULL)? (BOOL *)(ol->value) : | |
1142 | (BOOL *)((uschar *)data_block + (long int)(ol->value)); | |
1143 | } | |
1144 | ||
1145 | ||
1146 | ||
1147 | ||
1148 | /************************************************* | |
1149 | * Output extra characters message and die * | |
1150 | *************************************************/ | |
1151 | ||
1152 | /* Called when an option line has junk on the end. Sometimes this is because | |
1153 | the sysadmin thinks comments are permitted. | |
1154 | ||
1155 | Arguments: | |
1156 | s points to the extra characters | |
1157 | t1..t3 strings to insert in the log message | |
1158 | ||
1159 | Returns: doesn't return; dies | |
1160 | */ | |
1161 | ||
1162 | static void | |
1163 | extra_chars_error(uschar *s, uschar *t1, uschar *t2, uschar *t3) | |
1164 | { | |
1165 | uschar *comment = US""; | |
1166 | if (*s == '#') comment = US" (# is comment only at line start)"; | |
1167 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1168 | "extra characters follow %s%s%s%s", t1, t2, t3, comment); | |
1169 | } | |
1170 | ||
1171 | ||
1172 | ||
1173 | /************************************************* | |
1174 | * Read rewrite information * | |
1175 | *************************************************/ | |
1176 | ||
1177 | /* Each line of rewrite information contains: | |
1178 | ||
1179 | . A complete address in the form user@domain, possibly with | |
1180 | leading * for each part; or alternatively, a regex. | |
1181 | ||
1182 | . A replacement string (which will be expanded). | |
1183 | ||
1184 | . An optional sequence of one-letter flags, indicating which | |
1185 | headers etc. to apply this rule to. | |
1186 | ||
1187 | All this is decoded and placed into a control block. The OR of the flags is | |
1188 | maintained in a common word. | |
1189 | ||
1190 | Arguments: | |
1191 | p points to the string that makes up the rule | |
1192 | existflags points to the overall flag word | |
1193 | isglobal TRUE if reading global rewrite rules | |
1194 | ||
1195 | Returns: the control block for the parsed rule. | |
1196 | */ | |
1197 | ||
1198 | static rewrite_rule * | |
1199 | readconf_one_rewrite(uschar *p, int *existflags, BOOL isglobal) | |
1200 | { | |
1201 | rewrite_rule *next = store_get(sizeof(rewrite_rule)); | |
1202 | ||
1203 | next->next = NULL; | |
1204 | next->key = string_dequote(&p); | |
1205 | ||
1206 | while (isspace(*p)) p++; | |
1207 | if (*p == 0) | |
1208 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1209 | "missing rewrite replacement string"); | |
1210 | ||
1211 | next->flags = 0; | |
1212 | next->replacement = string_dequote(&p); | |
1213 | ||
1214 | while (*p != 0) switch (*p++) | |
1215 | { | |
1216 | case ' ': case '\t': break; | |
1217 | ||
1218 | case 'q': next->flags |= rewrite_quit; break; | |
1219 | case 'w': next->flags |= rewrite_whole; break; | |
1220 | ||
1221 | case 'h': next->flags |= rewrite_all_headers; break; | |
1222 | case 's': next->flags |= rewrite_sender; break; | |
1223 | case 'f': next->flags |= rewrite_from; break; | |
1224 | case 't': next->flags |= rewrite_to; break; | |
1225 | case 'c': next->flags |= rewrite_cc; break; | |
1226 | case 'b': next->flags |= rewrite_bcc; break; | |
1227 | case 'r': next->flags |= rewrite_replyto; break; | |
1228 | ||
1229 | case 'E': next->flags |= rewrite_all_envelope; break; | |
1230 | case 'F': next->flags |= rewrite_envfrom; break; | |
1231 | case 'T': next->flags |= rewrite_envto; break; | |
1232 | ||
1233 | case 'Q': next->flags |= rewrite_qualify; break; | |
1234 | case 'R': next->flags |= rewrite_repeat; break; | |
1235 | ||
1236 | case 'S': | |
1237 | next->flags |= rewrite_smtp; | |
1238 | if (next->key[0] != '^' && Ustrncmp(next->key, "\\N^", 3) != 0) | |
1239 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1240 | "rewrite rule has the S flag but is not a regular expression"); | |
1241 | break; | |
1242 | ||
1243 | default: | |
1244 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1245 | "unknown rewrite flag character '%c' " | |
1246 | "(could be missing quotes round replacement item)", p[-1]); | |
1247 | break; | |
1248 | } | |
1249 | ||
1250 | /* If no action flags are set, set all the "normal" rewrites. */ | |
1251 | ||
1252 | if ((next->flags & (rewrite_all | rewrite_smtp)) == 0) | |
1253 | next->flags |= isglobal? rewrite_all : rewrite_all_headers; | |
1254 | ||
1255 | /* Remember which exist, for optimization, and return the rule */ | |
1256 | ||
1257 | *existflags |= next->flags; | |
1258 | return next; | |
1259 | } | |
1260 | ||
1261 | ||
1262 | ||
1263 | ||
1264 | /************************************************* | |
1265 | * Read global rewrite information * | |
1266 | *************************************************/ | |
1267 | ||
1268 | /* Each line is a single rewrite rule; it is parsed into a control block | |
1269 | by readconf_one_rewrite(), and its flags are ORed into the global flag | |
1270 | word rewrite_existflags. */ | |
1271 | ||
1272 | void | |
1273 | readconf_rewrites(void) | |
1274 | { | |
1275 | rewrite_rule **chain = &global_rewrite_rules; | |
1276 | uschar *p; | |
1277 | ||
1278 | while ((p = get_config_line()) != NULL) | |
1279 | { | |
1280 | rewrite_rule *next = readconf_one_rewrite(p, &rewrite_existflags, TRUE); | |
1281 | *chain = next; | |
1282 | chain = &(next->next); | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | ||
1287 | ||
1288 | /************************************************* | |
1289 | * Read a string * | |
1290 | *************************************************/ | |
1291 | ||
1292 | /* Strings are read into the normal store pool. As long we aren't too | |
1293 | near the end of the current block, the string will just use what is necessary | |
1294 | on the top of the stacking pool, because string_cat() uses the extension | |
1295 | mechanism. | |
1296 | ||
1297 | Argument: | |
1298 | s the rest of the input line | |
1299 | name the option name (for errors) | |
1300 | ||
1301 | Returns: pointer to the string | |
1302 | */ | |
1303 | ||
1304 | static uschar * | |
1305 | read_string(uschar *s, uschar *name) | |
1306 | { | |
1307 | uschar *yield; | |
1308 | uschar *ss; | |
1309 | ||
1310 | if (*s != '\"') return string_copy(s); | |
1311 | ||
1312 | ss = s; | |
1313 | yield = string_dequote(&s); | |
1314 | ||
1315 | if (s == ss+1 || s[-1] != '\"') | |
1316 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1317 | "missing quote at end of string value for %s", name); | |
1318 | ||
1319 | if (*s != 0) extra_chars_error(s, US"string value for ", name, US""); | |
1320 | ||
1321 | return yield; | |
1322 | } | |
1323 | ||
1324 | ||
1325 | /************************************************* | |
1326 | * Handle option line * | |
1327 | *************************************************/ | |
1328 | ||
1329 | /* This function is called from several places to process a line containing the | |
1330 | setting of an option. The first argument is the line to be decoded; it has been | |
1331 | checked not to be empty and not to start with '#'. Trailing newlines and white | |
1332 | space have been removed. The second argument is a pointer to the list of | |
1333 | variable names that are to be recognized, together with their types and | |
1334 | locations, and the third argument gives the number of entries in the list. | |
1335 | ||
1336 | The fourth argument is a pointer to a data block. If it is NULL, then the data | |
1337 | values in the options list are absolute addresses. Otherwise, they are byte | |
1338 | offsets in the data block. | |
1339 | ||
1340 | String option data may continue onto several lines; this function reads further | |
1341 | data from config_file if necessary. | |
1342 | ||
1343 | The yield of this function is normally zero. If a string continues onto | |
1344 | multiple lines, then the data value is permitted to be followed by a comma | |
1345 | or a semicolon (for use in drivers) and the yield is that character. | |
1346 | ||
1347 | Arguments: | |
1348 | buffer contains the configuration line to be handled | |
1349 | oltop points to the start of the relevant option list | |
1350 | last one more than the offset of the last item in the option list | |
1351 | data_block NULL when reading main options => data values in the option | |
1352 | list are absolute addresses; otherwise they are byte offsets | |
1353 | in data_block when they have opt_public set; otherwise | |
1354 | they are byte offsets in data_block->options_block. | |
1355 | unknown_txt format string to use in panic message for unknown option; | |
1356 | must contain %s for option name | |
1357 | if given as NULL, don't panic on unknown option | |
1358 | ||
1359 | Returns: TRUE if an option was read successfully, | |
1360 | FALSE false for an unknown option if unknown_txt == NULL, | |
1361 | otherwise panic and die on an unknown option | |
1362 | */ | |
1363 | ||
1364 | static BOOL | |
1365 | readconf_handle_option(uschar *buffer, optionlist *oltop, int last, | |
1366 | void *data_block, uschar *unknown_txt) | |
1367 | { | |
1368 | int ptr = 0; | |
1369 | int offset = 0; | |
1370 | int n, count, type, value; | |
1371 | int issecure = 0; | |
1372 | uid_t uid; | |
1373 | gid_t gid; | |
1374 | BOOL boolvalue = TRUE; | |
1375 | BOOL freesptr = TRUE; | |
532be449 | 1376 | BOOL extra_condition = FALSE; |
059ec3d9 PH |
1377 | optionlist *ol, *ol2; |
1378 | struct passwd *pw; | |
1379 | void *reset_point; | |
1380 | int intbase = 0; | |
1381 | uschar *inttype = US""; | |
1382 | uschar *sptr; | |
1383 | uschar *s = buffer; | |
532be449 PP |
1384 | uschar *saved_condition, *strtemp; |
1385 | uschar **str_target; | |
059ec3d9 PH |
1386 | uschar name[64]; |
1387 | uschar name2[64]; | |
1388 | ||
1389 | /* There may be leading spaces; thereafter, we expect an option name starting | |
1390 | with a letter. */ | |
1391 | ||
1392 | while (isspace(*s)) s++; | |
1393 | if (!isalpha(*s)) | |
1394 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option setting expected: %s", s); | |
1395 | ||
1396 | /* Read the name of the option, and skip any subsequent white space. If | |
1397 | it turns out that what we read was "hide", set the flag indicating that | |
1398 | this is a secure option, and loop to read the next word. */ | |
1399 | ||
1400 | for (n = 0; n < 2; n++) | |
1401 | { | |
1402 | while (isalnum(*s) || *s == '_') | |
1403 | { | |
1404 | if (ptr < sizeof(name)-1) name[ptr++] = *s; | |
1405 | s++; | |
1406 | } | |
1407 | name[ptr] = 0; | |
1408 | while (isspace(*s)) s++; | |
1409 | if (Ustrcmp(name, "hide") != 0) break; | |
1410 | issecure = opt_secure; | |
1411 | ptr = 0; | |
1412 | } | |
1413 | ||
1414 | /* Deal with "no_" or "not_" here for booleans */ | |
1415 | ||
1416 | if (Ustrncmp(name, "no_", 3) == 0) | |
1417 | { | |
1418 | boolvalue = FALSE; | |
1419 | offset = 3; | |
1420 | } | |
1421 | ||
1422 | if (Ustrncmp(name, "not_", 4) == 0) | |
1423 | { | |
1424 | boolvalue = FALSE; | |
1425 | offset = 4; | |
1426 | } | |
1427 | ||
1428 | /* Search the list for the given name. A non-existent name, or an option that | |
1429 | is set twice, is a disaster. */ | |
1430 | ||
1431 | ol = find_option(name + offset, oltop, last); | |
1432 | ||
1433 | if (ol == NULL) | |
1434 | { | |
1435 | if (unknown_txt == NULL) return FALSE; | |
1436 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, CS unknown_txt, name); | |
1437 | } | |
1438 | ||
1439 | if ((ol->type & opt_set) != 0) | |
1440 | { | |
1441 | uschar *mname = name; | |
1442 | if (Ustrncmp(mname, "no_", 3) == 0) mname += 3; | |
532be449 PP |
1443 | if (Ustrcmp(mname, "condition") == 0) |
1444 | extra_condition = TRUE; | |
1445 | else | |
1446 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1447 | "\"%s\" option set for the second time", mname); | |
059ec3d9 PH |
1448 | } |
1449 | ||
1450 | ol->type |= opt_set | issecure; | |
1451 | type = ol->type & opt_mask; | |
1452 | ||
1453 | /* Types with data values must be followed by '='; the "no[t]_" prefix | |
1454 | applies only to boolean values. */ | |
1455 | ||
1456 | if (type < opt_bool || type > opt_bool_last) | |
1457 | { | |
1458 | if (offset != 0) | |
1459 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1460 | "negation prefix applied to a non-boolean option"); | |
1461 | if (*s == 0) | |
1462 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1463 | "unexpected end of line (data missing) after %s", name); | |
1464 | if (*s != '=') | |
1465 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing \"=\" after %s", name); | |
1466 | } | |
1467 | ||
1468 | /* If a boolean wasn't preceded by "no[t]_" it can be followed by = and | |
1469 | true/false/yes/no, or, in the case of opt_expanded_bool, a general string that | |
1470 | ultimately expands to one of those values. */ | |
1471 | ||
1472 | else if (*s != 0 && (offset != 0 || *s != '=')) | |
1473 | extra_chars_error(s, US"boolean option ", name, US""); | |
1474 | ||
1475 | /* Skip white space after = */ | |
1476 | ||
1477 | if (*s == '=') while (isspace((*(++s)))); | |
1478 | ||
1479 | /* If there is a data block and the opt_public flag is not set, change | |
1480 | the data block pointer to the private options block. */ | |
1481 | ||
1482 | if (data_block != NULL && (ol->type & opt_public) == 0) | |
1483 | data_block = (void *)(((driver_instance *)data_block)->options_block); | |
1484 | ||
1485 | /* Now get the data according to the type. */ | |
1486 | ||
1487 | switch (type) | |
1488 | { | |
1489 | /* If a string value is not enclosed in quotes, it consists of | |
1490 | the rest of the current line, verbatim. Otherwise, string escapes | |
1491 | are processed. | |
1492 | ||
1493 | A transport is specified as a string, which is then looked up in the | |
1494 | list of transports. A search type is specified as one of a number of | |
1495 | known strings. | |
1496 | ||
1497 | A set or rewrite rules for a driver is specified as a string, which is | |
1498 | then parsed into a suitable chain of control blocks. | |
1499 | ||
1500 | Uids and gids are specified as strings which are then looked up in the | |
1501 | passwd file. Lists of uids and gids are similarly specified as colon- | |
1502 | separated strings. */ | |
1503 | ||
1504 | case opt_stringptr: | |
1505 | case opt_uid: | |
1506 | case opt_gid: | |
1507 | case opt_expand_uid: | |
1508 | case opt_expand_gid: | |
1509 | case opt_uidlist: | |
1510 | case opt_gidlist: | |
1511 | case opt_rewrite: | |
1512 | ||
1513 | reset_point = sptr = read_string(s, name); | |
1514 | ||
1515 | /* Having read a string, we now have several different ways of using it, | |
1516 | depending on the data type, so do another switch. If keeping the actual | |
1517 | string is not required (because it is interpreted), freesptr is set TRUE, | |
1518 | and at the end we reset the pool. */ | |
1519 | ||
1520 | switch (type) | |
1521 | { | |
1522 | /* If this was a string, set the variable to point to the new string, | |
1523 | and set the flag so its store isn't reclaimed. If it was a list of rewrite | |
1524 | rules, we still keep the string (for printing), and parse the rules into a | |
1525 | control block and flags word. */ | |
1526 | ||
1527 | case opt_stringptr: | |
532be449 PP |
1528 | if (data_block == NULL) |
1529 | str_target = (uschar **)(ol->value); | |
1530 | else | |
1531 | str_target = (uschar **)((uschar *)data_block + (long int)(ol->value)); | |
1532 | if (extra_condition) | |
1533 | { | |
6a8de854 PP |
1534 | /* We already have a condition, we're conducting a crude hack to let |
1535 | multiple condition rules be chained together, despite storing them in | |
1536 | text form. */ | |
532be449 | 1537 | saved_condition = *str_target; |
6a8de854 | 1538 | strtemp = string_sprintf("${if and{{bool_lax{%s}}{bool_lax{%s}}}}", |
532be449 PP |
1539 | saved_condition, sptr); |
1540 | *str_target = string_copy_malloc(strtemp); | |
6a8de854 PP |
1541 | /* TODO(pdp): there is a memory leak here when we set 3 or more |
1542 | conditions; I still don't understand the store mechanism enough | |
1543 | to know what's the safe way to free content from an earlier store. | |
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 PP |
1553 | } |
1554 | else | |
1555 | { | |
1556 | *str_target = sptr; | |
1557 | freesptr = FALSE; | |
1558 | } | |
1559 | break; | |
1560 | ||
059ec3d9 PH |
1561 | case opt_rewrite: |
1562 | if (data_block == NULL) | |
1563 | *((uschar **)(ol->value)) = sptr; | |
1564 | else | |
1565 | *((uschar **)((uschar *)data_block + (long int)(ol->value))) = sptr; | |
1566 | freesptr = FALSE; | |
1567 | if (type == opt_rewrite) | |
1568 | { | |
1569 | int sep = 0; | |
1570 | int *flagptr; | |
1571 | uschar *p = sptr; | |
1572 | rewrite_rule **chain; | |
1573 | optionlist *ol3; | |
1574 | ||
1575 | sprintf(CS name2, "*%.50s_rules", name); | |
1576 | ol2 = find_option(name2, oltop, last); | |
1577 | sprintf(CS name2, "*%.50s_flags", name); | |
1578 | ol3 = find_option(name2, oltop, last); | |
1579 | ||
1580 | if (ol2 == NULL || ol3 == NULL) | |
1581 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1582 | "rewrite rules not available for driver"); | |
1583 | ||
1584 | if (data_block == NULL) | |
1585 | { | |
1586 | chain = (rewrite_rule **)(ol2->value); | |
1587 | flagptr = (int *)(ol3->value); | |
1588 | } | |
1589 | else | |
1590 | { | |
1591 | chain = (rewrite_rule **)((uschar *)data_block + (long int)(ol2->value)); | |
1592 | flagptr = (int *)((uschar *)data_block + (long int)(ol3->value)); | |
1593 | } | |
1594 | ||
1595 | while ((p = string_nextinlist(&sptr, &sep, big_buffer, BIG_BUFFER_SIZE)) | |
1596 | != NULL) | |
1597 | { | |
1598 | rewrite_rule *next = readconf_one_rewrite(p, flagptr, FALSE); | |
1599 | *chain = next; | |
1600 | chain = &(next->next); | |
1601 | } | |
1602 | ||
1603 | if ((*flagptr & (rewrite_all_envelope | rewrite_smtp)) != 0) | |
1604 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "rewrite rule specifies a " | |
1605 | "non-header rewrite - not allowed at transport time -"); | |
1606 | } | |
1607 | break; | |
1608 | ||
1609 | /* If it was an expanded uid, see if there is any expansion to be | |
1610 | done by checking for the presence of a $ character. If there is, save it | |
1611 | in the corresponding *expand_user option field. Otherwise, fall through | |
1612 | to treat it as a fixed uid. Ensure mutual exclusivity of the two kinds | |
1613 | of data. */ | |
1614 | ||
1615 | case opt_expand_uid: | |
1616 | sprintf(CS name2, "*expand_%.50s", name); | |
1617 | ol2 = find_option(name2, oltop, last); | |
1618 | if (ol2 != NULL) | |
1619 | { | |
1620 | uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL; | |
1621 | ||
1622 | if (data_block == NULL) | |
1623 | *((uschar **)(ol2->value)) = ss; | |
1624 | else | |
1625 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss; | |
1626 | ||
1627 | if (ss != NULL) | |
1628 | { | |
1629 | *(get_set_flag(name, oltop, last, data_block)) = FALSE; | |
1630 | freesptr = FALSE; | |
1631 | break; | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | /* Look up a fixed uid, and also make use of the corresponding gid | |
1636 | if a passwd entry is returned and the gid has not been set. */ | |
1637 | ||
1638 | case opt_uid: | |
1639 | if (!route_finduser(sptr, &pw, &uid)) | |
1640 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", sptr); | |
1641 | if (data_block == NULL) | |
1642 | *((uid_t *)(ol->value)) = uid; | |
1643 | else | |
1644 | *((uid_t *)((uschar *)data_block + (long int)(ol->value))) = uid; | |
1645 | ||
1646 | /* Set the flag indicating a fixed value is set */ | |
1647 | ||
1648 | *(get_set_flag(name, oltop, last, data_block)) = TRUE; | |
1649 | ||
1650 | /* Handle matching gid if we have a passwd entry: done by finding the | |
1651 | same name with terminating "user" changed to "group"; if not found, | |
1652 | ignore. Also ignore if the value is already set. */ | |
1653 | ||
1654 | if (pw == NULL) break; | |
1655 | Ustrcpy(name+Ustrlen(name)-4, "group"); | |
1656 | ol2 = find_option(name, oltop, last); | |
1657 | if (ol2 != NULL && ((ol2->type & opt_mask) == opt_gid || | |
1658 | (ol2->type & opt_mask) == opt_expand_gid)) | |
1659 | { | |
1660 | BOOL *set_flag = get_set_flag(name, oltop, last, data_block); | |
1661 | if (! *set_flag) | |
1662 | { | |
1663 | if (data_block == NULL) | |
1664 | *((gid_t *)(ol2->value)) = pw->pw_gid; | |
1665 | else | |
1666 | *((gid_t *)((uschar *)data_block + (long int)(ol2->value))) = pw->pw_gid; | |
1667 | *set_flag = TRUE; | |
1668 | } | |
1669 | } | |
1670 | break; | |
1671 | ||
1672 | /* If it was an expanded gid, see if there is any expansion to be | |
1673 | done by checking for the presence of a $ character. If there is, save it | |
1674 | in the corresponding *expand_user option field. Otherwise, fall through | |
1675 | to treat it as a fixed gid. Ensure mutual exclusivity of the two kinds | |
1676 | of data. */ | |
1677 | ||
1678 | case opt_expand_gid: | |
1679 | sprintf(CS name2, "*expand_%.50s", name); | |
1680 | ol2 = find_option(name2, oltop, last); | |
1681 | if (ol2 != NULL) | |
1682 | { | |
1683 | uschar *ss = (Ustrchr(sptr, '$') != NULL)? sptr : NULL; | |
1684 | ||
1685 | if (data_block == NULL) | |
1686 | *((uschar **)(ol2->value)) = ss; | |
1687 | else | |
1688 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = ss; | |
1689 | ||
1690 | if (ss != NULL) | |
1691 | { | |
1692 | *(get_set_flag(name, oltop, last, data_block)) = FALSE; | |
1693 | freesptr = FALSE; | |
1694 | break; | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | /* Handle freestanding gid */ | |
1699 | ||
1700 | case opt_gid: | |
1701 | if (!route_findgroup(sptr, &gid)) | |
1702 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", sptr); | |
1703 | if (data_block == NULL) | |
1704 | *((gid_t *)(ol->value)) = gid; | |
1705 | else | |
1706 | *((gid_t *)((uschar *)data_block + (long int)(ol->value))) = gid; | |
1707 | *(get_set_flag(name, oltop, last, data_block)) = TRUE; | |
1708 | break; | |
1709 | ||
1710 | /* If it was a uid list, look up each individual entry, and build | |
1711 | a vector of uids, with a count in the first element. Put the vector | |
1712 | in malloc store so we can free the string. (We are reading into | |
1713 | permanent store already.) */ | |
1714 | ||
1715 | case opt_uidlist: | |
1716 | { | |
1717 | int count = 1; | |
1718 | uid_t *list; | |
1719 | int ptr = 0; | |
0925ede6 PH |
1720 | uschar *p; |
1721 | uschar *op = expand_string (sptr); | |
1722 | ||
1723 | if (op == NULL) | |
1724 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s", | |
1725 | name, expand_string_message); | |
059ec3d9 | 1726 | |
0925ede6 | 1727 | p = op; |
059ec3d9 | 1728 | if (*p != 0) count++; |
0925ede6 | 1729 | while (*p != 0) if (*p++ == ':' && *p != 0) count++; |
059ec3d9 PH |
1730 | list = store_malloc(count*sizeof(uid_t)); |
1731 | list[ptr++] = (uid_t)(count - 1); | |
1732 | ||
1733 | if (data_block == NULL) | |
1734 | *((uid_t **)(ol->value)) = list; | |
1735 | else | |
1736 | *((uid_t **)((uschar *)data_block + (long int)(ol->value))) = list; | |
1737 | ||
0925ede6 | 1738 | p = op; |
059ec3d9 PH |
1739 | while (count-- > 1) |
1740 | { | |
1741 | int sep = 0; | |
1742 | (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE); | |
1743 | if (!route_finduser(big_buffer, NULL, &uid)) | |
1744 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "user %s was not found", | |
1745 | big_buffer); | |
1746 | list[ptr++] = uid; | |
1747 | } | |
1748 | } | |
1749 | break; | |
1750 | ||
1751 | /* If it was a gid list, look up each individual entry, and build | |
1752 | a vector of gids, with a count in the first element. Put the vector | |
1753 | in malloc store so we can free the string. (We are reading into permanent | |
1754 | store already.) */ | |
1755 | ||
1756 | case opt_gidlist: | |
1757 | { | |
1758 | int count = 1; | |
1759 | gid_t *list; | |
1760 | int ptr = 0; | |
0925ede6 PH |
1761 | uschar *p; |
1762 | uschar *op = expand_string (sptr); | |
1763 | ||
1764 | if (op == NULL) | |
1765 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "failed to expand %s: %s", | |
1766 | name, expand_string_message); | |
059ec3d9 | 1767 | |
0925ede6 | 1768 | p = op; |
059ec3d9 | 1769 | if (*p != 0) count++; |
0925ede6 | 1770 | while (*p != 0) if (*p++ == ':' && *p != 0) count++; |
059ec3d9 PH |
1771 | list = store_malloc(count*sizeof(gid_t)); |
1772 | list[ptr++] = (gid_t)(count - 1); | |
1773 | ||
1774 | if (data_block == NULL) | |
1775 | *((gid_t **)(ol->value)) = list; | |
1776 | else | |
1777 | *((gid_t **)((uschar *)data_block + (long int)(ol->value))) = list; | |
1778 | ||
0925ede6 | 1779 | p = op; |
059ec3d9 PH |
1780 | while (count-- > 1) |
1781 | { | |
1782 | int sep = 0; | |
1783 | (void)string_nextinlist(&p, &sep, big_buffer, BIG_BUFFER_SIZE); | |
1784 | if (!route_findgroup(big_buffer, &gid)) | |
1785 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "group %s was not found", | |
1786 | big_buffer); | |
1787 | list[ptr++] = gid; | |
1788 | } | |
1789 | } | |
1790 | break; | |
1791 | } | |
1792 | ||
1793 | /* Release store if the value of the string doesn't need to be kept. */ | |
1794 | ||
1795 | if (freesptr) store_reset(reset_point); | |
1796 | break; | |
1797 | ||
1798 | /* Expanded boolean: if no characters follow, or if there are no dollar | |
1799 | characters, this is a fixed-valued boolean, and we fall through. Otherwise, | |
1800 | save the string for later expansion in the alternate place. */ | |
1801 | ||
1802 | case opt_expand_bool: | |
1803 | if (*s != 0 && Ustrchr(s, '$') != 0) | |
1804 | { | |
1805 | sprintf(CS name2, "*expand_%.50s", name); | |
1806 | ol2 = find_option(name2, oltop, last); | |
1807 | if (ol2 != NULL) | |
1808 | { | |
1809 | reset_point = sptr = read_string(s, name); | |
1810 | if (data_block == NULL) | |
1811 | *((uschar **)(ol2->value)) = sptr; | |
1812 | else | |
1813 | *((uschar **)((uschar *)data_block + (long int)(ol2->value))) = sptr; | |
1814 | freesptr = FALSE; | |
1815 | break; | |
1816 | } | |
1817 | } | |
1818 | /* Fall through */ | |
1819 | ||
1820 | /* Boolean: if no characters follow, the value is boolvalue. Otherwise | |
1821 | look for yes/not/true/false. Some booleans are stored in a single bit in | |
1822 | a single int. There's a special fudge for verify settings; without a suffix | |
1823 | they set both xx_sender and xx_recipient. The table points to the sender | |
1824 | value; search subsequently for the recipient. There's another special case: | |
1825 | opt_bool_set also notes when a boolean has been set. */ | |
1826 | ||
1827 | case opt_bool: | |
1828 | case opt_bit: | |
1829 | case opt_bool_verify: | |
1830 | case opt_bool_set: | |
1831 | if (*s != 0) | |
1832 | { | |
1833 | s = readconf_readname(name2, 64, s); | |
1834 | if (strcmpic(name2, US"true") == 0 || strcmpic(name2, US"yes") == 0) | |
1835 | boolvalue = TRUE; | |
1836 | else if (strcmpic(name2, US"false") == 0 || strcmpic(name2, US"no") == 0) | |
1837 | boolvalue = FALSE; | |
1838 | else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1839 | "\"%s\" is not a valid value for the \"%s\" option", name2, name); | |
1840 | if (*s != 0) extra_chars_error(s, string_sprintf("\"%s\" ", name2), | |
1841 | US"for boolean option ", name); | |
1842 | } | |
1843 | ||
1844 | /* Handle single-bit type. */ | |
1845 | ||
1846 | if (type == opt_bit) | |
1847 | { | |
1848 | int bit = 1 << ((ol->type >> 16) & 31); | |
1849 | int *ptr = (data_block == NULL)? | |
1850 | (int *)(ol->value) : | |
1851 | (int *)((uschar *)data_block + (long int)ol->value); | |
1852 | if (boolvalue) *ptr |= bit; else *ptr &= ~bit; | |
1853 | break; | |
1854 | } | |
1855 | ||
1856 | /* Handle full BOOL types */ | |
1857 | ||
1858 | if (data_block == NULL) | |
1859 | *((BOOL *)(ol->value)) = boolvalue; | |
1860 | else | |
1861 | *((BOOL *)((uschar *)data_block + (long int)(ol->value))) = boolvalue; | |
1862 | ||
1863 | /* Verify fudge */ | |
1864 | ||
1865 | if (type == opt_bool_verify) | |
1866 | { | |
1867 | sprintf(CS name2, "%.50s_recipient", name + offset); | |
1868 | ol2 = find_option(name2, oltop, last); | |
1869 | if (ol2 != NULL) | |
1870 | { | |
1871 | if (data_block == NULL) | |
1872 | *((BOOL *)(ol2->value)) = boolvalue; | |
1873 | else | |
1874 | *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = boolvalue; | |
1875 | } | |
1876 | } | |
1877 | ||
1878 | /* Note that opt_bool_set type is set, if there is somewhere to do so */ | |
1879 | ||
1880 | else if (type == opt_bool_set) | |
1881 | { | |
1882 | sprintf(CS name2, "*set_%.50s", name + offset); | |
1883 | ol2 = find_option(name2, oltop, last); | |
1884 | if (ol2 != NULL) | |
1885 | { | |
1886 | if (data_block == NULL) | |
1887 | *((BOOL *)(ol2->value)) = TRUE; | |
1888 | else | |
1889 | *((BOOL *)((uschar *)data_block + (long int)(ol2->value))) = TRUE; | |
1890 | } | |
1891 | } | |
1892 | break; | |
1893 | ||
1894 | /* Octal integer */ | |
1895 | ||
1896 | case opt_octint: | |
1897 | intbase = 8; | |
1898 | inttype = US"octal "; | |
1899 | ||
1900 | /* Integer: a simple(ish) case; allow octal and hex formats, and | |
1901 | suffixes K and M. The different types affect output, not input. */ | |
1902 | ||
1903 | case opt_mkint: | |
1904 | case opt_int: | |
1905 | { | |
1906 | uschar *endptr; | |
7e8d92ba PH |
1907 | long int lvalue; |
1908 | ||
059ec3d9 | 1909 | errno = 0; |
7e8d92ba | 1910 | lvalue = strtol(CS s, CSS &endptr, intbase); |
059ec3d9 PH |
1911 | |
1912 | if (endptr == s) | |
1913 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s", | |
1914 | inttype, name); | |
1915 | ||
1916 | if (errno != ERANGE) | |
1917 | { | |
1918 | if (tolower(*endptr) == 'k') | |
1919 | { | |
7e8d92ba PH |
1920 | if (lvalue > INT_MAX/1024 || lvalue < INT_MIN/1024) errno = ERANGE; |
1921 | else lvalue *= 1024; | |
059ec3d9 PH |
1922 | endptr++; |
1923 | } | |
1924 | else if (tolower(*endptr) == 'm') | |
1925 | { | |
7e8d92ba | 1926 | if (lvalue > INT_MAX/(1024*1024) || lvalue < INT_MIN/(1024*1024)) |
059ec3d9 | 1927 | errno = ERANGE; |
7e8d92ba | 1928 | else lvalue *= 1024*1024; |
059ec3d9 PH |
1929 | endptr++; |
1930 | } | |
1931 | } | |
1932 | ||
7e8d92ba PH |
1933 | if (errno == ERANGE || lvalue > INT_MAX || lvalue < INT_MIN) |
1934 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1935 | "absolute value of integer \"%s\" is too large (overflow)", s); | |
059ec3d9 PH |
1936 | |
1937 | while (isspace(*endptr)) endptr++; | |
1938 | if (*endptr != 0) | |
1939 | extra_chars_error(endptr, inttype, US"integer value for ", name); | |
7e8d92ba PH |
1940 | |
1941 | value = (int)lvalue; | |
059ec3d9 PH |
1942 | } |
1943 | ||
1944 | if (data_block == NULL) | |
1945 | *((int *)(ol->value)) = value; | |
1946 | else | |
1947 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
1948 | break; | |
1949 | ||
1950 | /* Integer held in K: again, allow octal and hex formats, and suffixes K and | |
1951 | M. */ | |
1952 | ||
1953 | case opt_Kint: | |
1954 | { | |
1955 | uschar *endptr; | |
1956 | errno = 0; | |
1957 | value = strtol(CS s, CSS &endptr, intbase); | |
1958 | ||
1959 | if (endptr == s) | |
1960 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%sinteger expected for %s", | |
1961 | inttype, name); | |
1962 | ||
1963 | if (errno != ERANGE) | |
1964 | { | |
1965 | if (tolower(*endptr) == 'm') | |
1966 | { | |
1967 | if (value > INT_MAX/1024 || value < INT_MIN/1024) errno = ERANGE; | |
1968 | else value *= 1024; | |
1969 | endptr++; | |
1970 | } | |
1971 | else if (tolower(*endptr) == 'k') | |
1972 | { | |
1973 | endptr++; | |
1974 | } | |
1975 | else | |
1976 | { | |
1977 | value = (value + 512)/1024; | |
1978 | } | |
1979 | } | |
1980 | ||
1981 | if (errno == ERANGE) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
1982 | "absolute value of integer \"%s\" is too large (overflow)", s); | |
1983 | ||
1984 | while (isspace(*endptr)) endptr++; | |
1985 | if (*endptr != 0) | |
1986 | extra_chars_error(endptr, inttype, US"integer value for ", name); | |
1987 | } | |
1988 | ||
1989 | if (data_block == NULL) | |
1990 | *((int *)(ol->value)) = value; | |
1991 | else | |
1992 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
1993 | break; | |
1994 | ||
1995 | /* Fixed-point number: held to 3 decimal places. */ | |
1996 | ||
1997 | case opt_fixed: | |
1998 | if (sscanf(CS s, "%d%n", &value, &count) != 1) | |
1999 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2000 | "fixed-point number expected for %s", name); | |
2001 | ||
2002 | if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2003 | "integer \"%s\" is too large (overflow)", s); | |
2004 | ||
2005 | value *= 1000; | |
2006 | ||
2007 | if (value < 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2008 | "integer \"%s\" is too large (overflow)", s); | |
2009 | ||
2010 | if (s[count] == '.') | |
2011 | { | |
2012 | int d = 100; | |
2013 | while (isdigit(s[++count])) | |
2014 | { | |
2015 | value += (s[count] - '0') * d; | |
2016 | d /= 10; | |
2017 | } | |
2018 | } | |
2019 | ||
2020 | while (isspace(s[count])) count++; | |
2021 | ||
2022 | if (s[count] != 0) | |
2023 | extra_chars_error(s+count, US"fixed-point value for ", name, US""); | |
2024 | ||
2025 | if (data_block == NULL) | |
2026 | *((int *)(ol->value)) = value; | |
2027 | else | |
2028 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
2029 | break; | |
2030 | ||
2031 | /* There's a special routine to read time values. */ | |
2032 | ||
2033 | case opt_time: | |
2034 | value = readconf_readtime(s, 0, FALSE); | |
2035 | if (value < 0) | |
2036 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s", | |
2037 | name); | |
2038 | if (data_block == NULL) | |
2039 | *((int *)(ol->value)) = value; | |
2040 | else | |
2041 | *((int *)((uschar *)data_block + (long int)(ol->value))) = value; | |
2042 | break; | |
2043 | ||
2044 | /* A time list is a list of colon-separated times, with the first | |
2045 | element holding the size of the list and the second the number of | |
2046 | entries used. */ | |
2047 | ||
2048 | case opt_timelist: | |
2049 | { | |
2050 | int count = 0; | |
2051 | int *list = (data_block == NULL)? | |
2052 | (int *)(ol->value) : | |
2053 | (int *)((uschar *)data_block + (long int)(ol->value)); | |
2054 | ||
2055 | if (*s != 0) for (count = 1; count <= list[0] - 2; count++) | |
2056 | { | |
2057 | int terminator = 0; | |
2058 | uschar *snext = Ustrchr(s, ':'); | |
2059 | if (snext != NULL) | |
2060 | { | |
2061 | uschar *ss = snext; | |
2062 | while (ss > s && isspace(ss[-1])) ss--; | |
2063 | terminator = *ss; | |
2064 | } | |
2065 | value = readconf_readtime(s, terminator, FALSE); | |
2066 | if (value < 0) | |
2067 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "invalid time value for %s", | |
2068 | name); | |
2069 | if (count > 1 && value <= list[count]) | |
2070 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2071 | "time value out of order for %s", name); | |
2072 | list[count+1] = value; | |
2073 | if (snext == NULL) break; | |
2074 | s = snext + 1; | |
2075 | while (isspace(*s)) s++; | |
2076 | } | |
2077 | ||
2078 | if (count > list[0] - 2) | |
2079 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many time values for %s", | |
2080 | name); | |
2081 | if (count > 0 && list[2] == 0) count = 0; | |
2082 | list[1] = count; | |
2083 | } | |
2084 | ||
2085 | break; | |
2086 | } | |
2087 | ||
2088 | return TRUE; | |
2089 | } | |
2090 | ||
2091 | ||
2092 | ||
2093 | /************************************************* | |
2094 | * Print a time value * | |
2095 | *************************************************/ | |
2096 | ||
2097 | /* | |
2098 | Argument: a time value in seconds | |
2099 | Returns: pointer to a fixed buffer containing the time as a string, | |
2100 | in readconf_readtime() format | |
2101 | */ | |
2102 | ||
2103 | uschar * | |
2104 | readconf_printtime(int t) | |
2105 | { | |
2106 | int s, m, h, d, w; | |
2107 | uschar *p = time_buffer; | |
2108 | ||
ea49d0e1 PH |
2109 | if (t < 0) |
2110 | { | |
2111 | *p++ = '-'; | |
2112 | t = -t; | |
2113 | } | |
2114 | ||
059ec3d9 PH |
2115 | s = t % 60; |
2116 | t /= 60; | |
2117 | m = t % 60; | |
2118 | t /= 60; | |
2119 | h = t % 24; | |
2120 | t /= 24; | |
2121 | d = t % 7; | |
2122 | w = t/7; | |
2123 | ||
2124 | if (w > 0) { sprintf(CS p, "%dw", w); while (*p) p++; } | |
2125 | if (d > 0) { sprintf(CS p, "%dd", d); while (*p) p++; } | |
2126 | if (h > 0) { sprintf(CS p, "%dh", h); while (*p) p++; } | |
2127 | if (m > 0) { sprintf(CS p, "%dm", m); while (*p) p++; } | |
2128 | if (s > 0 || p == time_buffer) sprintf(CS p, "%ds", s); | |
2129 | ||
2130 | return time_buffer; | |
2131 | } | |
2132 | ||
2133 | ||
2134 | ||
2135 | /************************************************* | |
2136 | * Print an individual option value * | |
2137 | *************************************************/ | |
2138 | ||
2139 | /* This is used by the -bP option, so prints to the standard output. | |
2140 | The entire options list is passed in as an argument, because some options come | |
2141 | in pairs - typically uid/gid settings, which can either be explicit numerical | |
2142 | values, or strings to be expanded later. If the numerical value is unset, | |
2143 | search for "*expand_<name>" to see if there is a string equivalent. | |
2144 | ||
2145 | Arguments: | |
2146 | ol option entry, or NULL for an unknown option | |
2147 | name option name | |
2148 | options_block NULL for main configuration options; otherwise points to | |
2149 | a driver block; if the option doesn't have opt_public | |
2150 | set, then options_block->options_block is where the item | |
2151 | resides. | |
2152 | oltop points to the option list in which ol exists | |
2153 | last one more than the offset of the last entry in optop | |
12f69989 | 2154 | no_labels do not show "foo = " at the start. |
059ec3d9 PH |
2155 | |
2156 | Returns: nothing | |
2157 | */ | |
2158 | ||
2159 | static void | |
2160 | print_ol(optionlist *ol, uschar *name, void *options_block, | |
12f69989 | 2161 | optionlist *oltop, int last, BOOL no_labels) |
059ec3d9 PH |
2162 | { |
2163 | struct passwd *pw; | |
2164 | struct group *gr; | |
2165 | optionlist *ol2; | |
2166 | void *value; | |
2167 | uid_t *uidlist; | |
2168 | gid_t *gidlist; | |
2169 | uschar *s; | |
2170 | uschar name2[64]; | |
2171 | ||
2172 | if (ol == NULL) | |
2173 | { | |
2174 | printf("%s is not a known option\n", name); | |
2175 | return; | |
2176 | } | |
2177 | ||
2178 | /* Non-admin callers cannot see options that have been flagged secure by the | |
2179 | "hide" prefix. */ | |
2180 | ||
2181 | if (!admin_user && (ol->type & opt_secure) != 0) | |
2182 | { | |
12f69989 PP |
2183 | const char * const hidden = "<value not displayable>"; |
2184 | if (no_labels) | |
2185 | printf("%s\n", hidden); | |
2186 | else | |
2187 | printf("%s = %s\n", name, hidden); | |
059ec3d9 PH |
2188 | return; |
2189 | } | |
2190 | ||
2191 | /* Else show the value of the option */ | |
2192 | ||
2193 | value = ol->value; | |
2194 | if (options_block != NULL) | |
2195 | { | |
2196 | if ((ol->type & opt_public) == 0) | |
2197 | options_block = (void *)(((driver_instance *)options_block)->options_block); | |
2198 | value = (void *)((uschar *)options_block + (long int)value); | |
2199 | } | |
2200 | ||
2201 | switch(ol->type & opt_mask) | |
2202 | { | |
2203 | case opt_stringptr: | |
2204 | case opt_rewrite: /* Show the text value */ | |
2205 | s = *((uschar **)value); | |
12f69989 PP |
2206 | if (!no_labels) printf("%s = ", name); |
2207 | printf("%s\n", (s == NULL)? US"" : string_printing2(s, FALSE)); | |
059ec3d9 PH |
2208 | break; |
2209 | ||
2210 | case opt_int: | |
12f69989 PP |
2211 | if (!no_labels) printf("%s = ", name); |
2212 | printf("%d\n", *((int *)value)); | |
059ec3d9 PH |
2213 | break; |
2214 | ||
2215 | case opt_mkint: | |
2216 | { | |
2217 | int x = *((int *)value); | |
2218 | if (x != 0 && (x & 1023) == 0) | |
2219 | { | |
2220 | int c = 'K'; | |
2221 | x >>= 10; | |
2222 | if ((x & 1023) == 0) | |
2223 | { | |
2224 | c = 'M'; | |
2225 | x >>= 10; | |
2226 | } | |
12f69989 PP |
2227 | if (!no_labels) printf("%s = ", name); |
2228 | printf("%d%c\n", x, c); | |
2229 | } | |
2230 | else | |
2231 | { | |
2232 | if (!no_labels) printf("%s = ", name); | |
2233 | printf("%d\n", x); | |
059ec3d9 | 2234 | } |
059ec3d9 PH |
2235 | } |
2236 | break; | |
2237 | ||
2238 | case opt_Kint: | |
2239 | { | |
2240 | int x = *((int *)value); | |
12f69989 PP |
2241 | if (!no_labels) printf("%s = ", name); |
2242 | if (x == 0) printf("0\n"); | |
2243 | else if ((x & 1023) == 0) printf("%dM\n", x >> 10); | |
2244 | else printf("%dK\n", x); | |
059ec3d9 PH |
2245 | } |
2246 | break; | |
2247 | ||
2248 | case opt_octint: | |
12f69989 PP |
2249 | if (!no_labels) printf("%s = ", name); |
2250 | printf("%#o\n", *((int *)value)); | |
059ec3d9 PH |
2251 | break; |
2252 | ||
2253 | /* Can be negative only when "unset", in which case integer */ | |
2254 | ||
2255 | case opt_fixed: | |
2256 | { | |
2257 | int x = *((int *)value); | |
2258 | int f = x % 1000; | |
2259 | int d = 100; | |
2260 | if (x < 0) printf("%s =\n", name); else | |
2261 | { | |
12f69989 PP |
2262 | if (!no_labels) printf("%s = ", name); |
2263 | printf("%d.", x/1000); | |
059ec3d9 PH |
2264 | do |
2265 | { | |
2266 | printf("%d", f/d); | |
2267 | f %= d; | |
2268 | d /= 10; | |
2269 | } | |
2270 | while (f != 0); | |
2271 | printf("\n"); | |
2272 | } | |
2273 | } | |
2274 | break; | |
2275 | ||
2276 | /* If the numerical value is unset, try for the string value */ | |
2277 | ||
2278 | case opt_expand_uid: | |
2279 | if (! *get_set_flag(name, oltop, last, options_block)) | |
2280 | { | |
2281 | sprintf(CS name2, "*expand_%.50s", name); | |
2282 | ol2 = find_option(name2, oltop, last); | |
2283 | if (ol2 != NULL) | |
2284 | { | |
2285 | void *value2 = ol2->value; | |
2286 | if (options_block != NULL) | |
2287 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2288 | s = *((uschar **)value2); | |
12f69989 PP |
2289 | if (!no_labels) printf("%s = ", name); |
2290 | printf("%s\n", (s == NULL)? US"" : string_printing(s)); | |
059ec3d9 PH |
2291 | break; |
2292 | } | |
2293 | } | |
2294 | ||
2295 | /* Else fall through */ | |
2296 | ||
2297 | case opt_uid: | |
12f69989 | 2298 | if (!no_labels) printf("%s = ", name); |
059ec3d9 | 2299 | if (! *get_set_flag(name, oltop, last, options_block)) |
12f69989 | 2300 | printf("\n"); |
059ec3d9 PH |
2301 | else |
2302 | { | |
2303 | pw = getpwuid(*((uid_t *)value)); | |
2304 | if (pw == NULL) | |
12f69989 PP |
2305 | printf("%ld\n", (long int)(*((uid_t *)value))); |
2306 | else printf("%s\n", pw->pw_name); | |
059ec3d9 PH |
2307 | } |
2308 | break; | |
2309 | ||
2310 | /* If the numerical value is unset, try for the string value */ | |
2311 | ||
2312 | case opt_expand_gid: | |
2313 | if (! *get_set_flag(name, oltop, last, options_block)) | |
2314 | { | |
2315 | sprintf(CS name2, "*expand_%.50s", name); | |
2316 | ol2 = find_option(name2, oltop, last); | |
2317 | if (ol2 != NULL && (ol2->type & opt_mask) == opt_stringptr) | |
2318 | { | |
2319 | void *value2 = ol2->value; | |
2320 | if (options_block != NULL) | |
2321 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2322 | s = *((uschar **)value2); | |
12f69989 PP |
2323 | if (!no_labels) printf("%s = ", name); |
2324 | printf("%s\n", (s == NULL)? US"" : string_printing(s)); | |
059ec3d9 PH |
2325 | break; |
2326 | } | |
2327 | } | |
2328 | ||
2329 | /* Else fall through */ | |
2330 | ||
2331 | case opt_gid: | |
12f69989 | 2332 | if (!no_labels) printf("%s = ", name); |
059ec3d9 | 2333 | if (! *get_set_flag(name, oltop, last, options_block)) |
12f69989 | 2334 | printf("\n"); |
059ec3d9 PH |
2335 | else |
2336 | { | |
2337 | gr = getgrgid(*((int *)value)); | |
2338 | if (gr == NULL) | |
12f69989 PP |
2339 | printf("%ld\n", (long int)(*((int *)value))); |
2340 | else printf("%s\n", gr->gr_name); | |
059ec3d9 PH |
2341 | } |
2342 | break; | |
2343 | ||
2344 | case opt_uidlist: | |
2345 | uidlist = *((uid_t **)value); | |
12f69989 | 2346 | if (!no_labels) printf("%s =", name); |
059ec3d9 PH |
2347 | if (uidlist != NULL) |
2348 | { | |
2349 | int i; | |
2350 | uschar sep = ' '; | |
12f69989 | 2351 | if (no_labels) sep = '\0'; |
059ec3d9 PH |
2352 | for (i = 1; i <= (int)(uidlist[0]); i++) |
2353 | { | |
2354 | uschar *name = NULL; | |
2355 | pw = getpwuid(uidlist[i]); | |
2356 | if (pw != NULL) name = US pw->pw_name; | |
12f69989 PP |
2357 | if (sep != '\0') printf("%c", sep); |
2358 | if (name != NULL) printf("%s", name); | |
2359 | else printf("%ld", (long int)(uidlist[i])); | |
059ec3d9 PH |
2360 | sep = ':'; |
2361 | } | |
2362 | } | |
2363 | printf("\n"); | |
2364 | break; | |
2365 | ||
2366 | case opt_gidlist: | |
2367 | gidlist = *((gid_t **)value); | |
12f69989 | 2368 | if (!no_labels) printf("%s =", name); |
059ec3d9 PH |
2369 | if (gidlist != NULL) |
2370 | { | |
2371 | int i; | |
2372 | uschar sep = ' '; | |
12f69989 | 2373 | if (no_labels) sep = '\0'; |
059ec3d9 PH |
2374 | for (i = 1; i <= (int)(gidlist[0]); i++) |
2375 | { | |
2376 | uschar *name = NULL; | |
2377 | gr = getgrgid(gidlist[i]); | |
2378 | if (gr != NULL) name = US gr->gr_name; | |
12f69989 PP |
2379 | if (sep != '\0') printf("%c", sep); |
2380 | if (name != NULL) printf("%s", name); | |
2381 | else printf("%ld", (long int)(gidlist[i])); | |
059ec3d9 PH |
2382 | sep = ':'; |
2383 | } | |
2384 | } | |
2385 | printf("\n"); | |
2386 | break; | |
2387 | ||
2388 | case opt_time: | |
12f69989 PP |
2389 | if (!no_labels) printf("%s = ", name); |
2390 | printf("%s\n", readconf_printtime(*((int *)value))); | |
059ec3d9 PH |
2391 | break; |
2392 | ||
2393 | case opt_timelist: | |
2394 | { | |
2395 | int i; | |
2396 | int *list = (int *)value; | |
12f69989 | 2397 | if (!no_labels) printf("%s = ", name); |
059ec3d9 PH |
2398 | for (i = 0; i < list[1]; i++) |
2399 | printf("%s%s", (i == 0)? "" : ":", readconf_printtime(list[i+2])); | |
2400 | printf("\n"); | |
2401 | } | |
2402 | break; | |
2403 | ||
2404 | case opt_bit: | |
2405 | printf("%s%s\n", ((*((int *)value)) & (1 << ((ol->type >> 16) & 31)))? | |
2406 | "" : "no_", name); | |
2407 | break; | |
2408 | ||
2409 | case opt_expand_bool: | |
2410 | sprintf(CS name2, "*expand_%.50s", name); | |
2411 | ol2 = find_option(name2, oltop, last); | |
2412 | if (ol2 != NULL && ol2->value != NULL) | |
2413 | { | |
2414 | void *value2 = ol2->value; | |
2415 | if (options_block != NULL) | |
2416 | value2 = (void *)((uschar *)options_block + (long int)value2); | |
2417 | s = *((uschar **)value2); | |
2418 | if (s != NULL) | |
2419 | { | |
12f69989 PP |
2420 | if (!no_labels) printf("%s = ", name); |
2421 | printf("%s\n", string_printing(s)); | |
059ec3d9 PH |
2422 | break; |
2423 | } | |
2424 | /* s == NULL => string not set; fall through */ | |
2425 | } | |
2426 | ||
2427 | /* Fall through */ | |
2428 | ||
2429 | case opt_bool: | |
2430 | case opt_bool_verify: | |
2431 | case opt_bool_set: | |
2432 | printf("%s%s\n", (*((BOOL *)value))? "" : "no_", name); | |
2433 | break; | |
2434 | } | |
2435 | } | |
2436 | ||
2437 | ||
2438 | ||
2439 | /************************************************* | |
2440 | * Print value from main configuration * | |
2441 | *************************************************/ | |
2442 | ||
2443 | /* This function, called as a result of encountering the -bP option, | |
2444 | causes the value of any main configuration variable to be output if the | |
2445 | second argument is NULL. There are some special values: | |
2446 | ||
2447 | all print all main configuration options | |
2448 | configure_file print the name of the configuration file | |
2449 | routers print the routers' configurations | |
2450 | transports print the transports' configuration | |
2451 | authenticators print the authenticators' configuration | |
5d9c27ec | 2452 | macros print the macros' configuration |
059ec3d9 PH |
2453 | router_list print a list of router names |
2454 | transport_list print a list of transport names | |
2455 | authenticator_list print a list of authentication mechanism names | |
5d9c27ec | 2456 | macro_list print a list of macro names |
059ec3d9 PH |
2457 | +name print a named list item |
2458 | local_scan print the local_scan options | |
2459 | ||
5d9c27ec TK |
2460 | If the second argument is not NULL, it must be one of "router", "transport", |
2461 | "authenticator" or "macro" in which case the first argument identifies the | |
2462 | driver whose options are to be printed. | |
059ec3d9 PH |
2463 | |
2464 | Arguments: | |
2465 | name option name if type == NULL; else driver name | |
2466 | type NULL or driver type name, as described above | |
12f69989 | 2467 | no_labels avoid the "foo = " at the start of an item |
059ec3d9 PH |
2468 | |
2469 | Returns: nothing | |
2470 | */ | |
2471 | ||
2472 | void | |
12f69989 | 2473 | readconf_print(uschar *name, uschar *type, BOOL no_labels) |
059ec3d9 PH |
2474 | { |
2475 | BOOL names_only = FALSE; | |
2476 | optionlist *ol; | |
2477 | optionlist *ol2 = NULL; | |
2478 | driver_instance *d = NULL; | |
5d9c27ec | 2479 | macro_item *m; |
059ec3d9 PH |
2480 | int size = 0; |
2481 | ||
2482 | if (type == NULL) | |
2483 | { | |
2484 | if (*name == '+') | |
2485 | { | |
2486 | int i; | |
2487 | tree_node *t; | |
2488 | BOOL found = FALSE; | |
2489 | static uschar *types[] = { US"address", US"domain", US"host", | |
2490 | US"localpart" }; | |
2491 | static tree_node **anchors[] = { &addresslist_anchor, &domainlist_anchor, | |
2492 | &hostlist_anchor, &localpartlist_anchor }; | |
2493 | ||
2494 | for (i = 0; i < 4; i++) | |
2495 | { | |
2496 | t = tree_search(*(anchors[i]), name+1); | |
2497 | if (t != NULL) | |
2498 | { | |
2499 | found = TRUE; | |
12f69989 PP |
2500 | if (no_labels) |
2501 | printf("%s\n", ((namedlist_block *)(t->data.ptr))->string); | |
2502 | else | |
2503 | printf("%slist %s = %s\n", types[i], name+1, | |
2504 | ((namedlist_block *)(t->data.ptr))->string); | |
059ec3d9 PH |
2505 | } |
2506 | } | |
2507 | ||
2508 | if (!found) | |
2509 | printf("no address, domain, host, or local part list called \"%s\" " | |
2510 | "exists\n", name+1); | |
2511 | ||
2512 | return; | |
2513 | } | |
2514 | ||
2515 | if (Ustrcmp(name, "configure_file") == 0) | |
2516 | { | |
2517 | printf("%s\n", CS config_main_filename); | |
2518 | return; | |
2519 | } | |
2520 | ||
2521 | if (Ustrcmp(name, "all") == 0) | |
2522 | { | |
2523 | for (ol = optionlist_config; | |
2524 | ol < optionlist_config + optionlist_config_size; ol++) | |
2525 | { | |
2526 | if ((ol->type & opt_hidden) == 0) | |
12f69989 PP |
2527 | print_ol(ol, US ol->name, NULL, |
2528 | optionlist_config, optionlist_config_size, | |
2529 | no_labels); | |
059ec3d9 PH |
2530 | } |
2531 | return; | |
2532 | } | |
2533 | ||
2534 | if (Ustrcmp(name, "local_scan") == 0) | |
2535 | { | |
2536 | #ifndef LOCAL_SCAN_HAS_OPTIONS | |
2537 | printf("local_scan() options are not supported\n"); | |
2538 | #else | |
2539 | for (ol = local_scan_options; | |
2540 | ol < local_scan_options + local_scan_options_count; ol++) | |
2541 | { | |
2542 | print_ol(ol, US ol->name, NULL, local_scan_options, | |
12f69989 | 2543 | local_scan_options_count, no_labels); |
059ec3d9 PH |
2544 | } |
2545 | #endif | |
2546 | return; | |
2547 | } | |
2548 | ||
2549 | if (Ustrcmp(name, "routers") == 0) | |
2550 | { | |
2551 | type = US"router"; | |
2552 | name = NULL; | |
2553 | } | |
2554 | else if (Ustrcmp(name, "transports") == 0) | |
2555 | { | |
2556 | type = US"transport"; | |
2557 | name = NULL; | |
2558 | } | |
2559 | ||
2560 | else if (Ustrcmp(name, "authenticators") == 0) | |
2561 | { | |
2562 | type = US"authenticator"; | |
2563 | name = NULL; | |
2564 | } | |
2565 | ||
5d9c27ec | 2566 | else if (Ustrcmp(name, "macros") == 0) |
059ec3d9 | 2567 | { |
5d9c27ec | 2568 | type = US"macro"; |
059ec3d9 | 2569 | name = NULL; |
059ec3d9 PH |
2570 | } |
2571 | ||
2572 | else if (Ustrcmp(name, "router_list") == 0) | |
2573 | { | |
2574 | type = US"router"; | |
2575 | name = NULL; | |
2576 | names_only = TRUE; | |
2577 | } | |
5d9c27ec | 2578 | |
059ec3d9 PH |
2579 | else if (Ustrcmp(name, "transport_list") == 0) |
2580 | { | |
2581 | type = US"transport"; | |
2582 | name = NULL; | |
2583 | names_only = TRUE; | |
2584 | } | |
5d9c27ec TK |
2585 | |
2586 | else if (Ustrcmp(name, "authenticator_list") == 0) | |
2587 | { | |
2588 | type = US"authenticator"; | |
2589 | name = NULL; | |
2590 | names_only = TRUE; | |
2591 | } | |
2592 | ||
2593 | else if (Ustrcmp(name, "macro_list") == 0) | |
2594 | { | |
2595 | type = US"macro"; | |
2596 | name = NULL; | |
2597 | names_only = TRUE; | |
2598 | } | |
2599 | ||
059ec3d9 PH |
2600 | else |
2601 | { | |
2602 | print_ol(find_option(name, optionlist_config, optionlist_config_size), | |
12f69989 | 2603 | name, NULL, optionlist_config, optionlist_config_size, no_labels); |
059ec3d9 PH |
2604 | return; |
2605 | } | |
2606 | } | |
2607 | ||
2608 | /* Handle the options for a router or transport. Skip options that are flagged | |
2609 | as hidden. Some of these are options with names starting with '*', used for | |
2610 | internal alternative representations of other options (which the printing | |
2611 | function will sort out). Others are synonyms kept for backward compatibility. | |
2612 | */ | |
2613 | ||
2614 | if (Ustrcmp(type, "router") == 0) | |
2615 | { | |
2616 | d = (driver_instance *)routers; | |
2617 | ol2 = optionlist_routers; | |
2618 | size = optionlist_routers_size; | |
2619 | } | |
2620 | else if (Ustrcmp(type, "transport") == 0) | |
2621 | { | |
2622 | d = (driver_instance *)transports; | |
2623 | ol2 = optionlist_transports; | |
2624 | size = optionlist_transports_size; | |
2625 | } | |
2626 | else if (Ustrcmp(type, "authenticator") == 0) | |
2627 | { | |
2628 | d = (driver_instance *)auths; | |
2629 | ol2 = optionlist_auths; | |
2630 | size = optionlist_auths_size; | |
2631 | } | |
2632 | ||
5d9c27ec TK |
2633 | else if (Ustrcmp(type, "macro") == 0) |
2634 | { | |
2635 | /* People store passwords in macros and they were previously not available | |
2636 | for printing. So we have an admin_users restriction. */ | |
2637 | if (!admin_user) | |
2638 | { | |
2639 | fprintf(stderr, "exim: permission denied\n"); | |
2640 | exit(EXIT_FAILURE); | |
2641 | } | |
2642 | for (m = macros; m != NULL; m = m->next) | |
2643 | { | |
2644 | if (name == NULL || Ustrcmp(name, m->name) == 0) | |
2645 | { | |
2646 | if (names_only) | |
2647 | printf("%s\n", CS m->name); | |
2648 | else | |
2649 | printf("%s=%s\n", CS m->name, CS m->replacement); | |
2650 | if (name != NULL) | |
2651 | return; | |
2652 | } | |
2653 | } | |
2654 | if (name != NULL) | |
2655 | printf("%s %s not found\n", type, name); | |
2656 | return; | |
2657 | } | |
2658 | ||
059ec3d9 PH |
2659 | if (names_only) |
2660 | { | |
2661 | for (; d != NULL; d = d->next) printf("%s\n", CS d->name); | |
2662 | return; | |
2663 | } | |
2664 | ||
2665 | /* Either search for a given driver, or print all of them */ | |
2666 | ||
2667 | for (; d != NULL; d = d->next) | |
2668 | { | |
2669 | if (name == NULL) | |
2670 | printf("\n%s %s:\n", d->name, type); | |
2671 | else if (Ustrcmp(d->name, name) != 0) continue; | |
2672 | ||
2673 | for (ol = ol2; ol < ol2 + size; ol++) | |
2674 | { | |
2675 | if ((ol->type & opt_hidden) == 0) | |
12f69989 | 2676 | print_ol(ol, US ol->name, d, ol2, size, no_labels); |
059ec3d9 PH |
2677 | } |
2678 | ||
2679 | for (ol = d->info->options; | |
2680 | ol < d->info->options + *(d->info->options_count); ol++) | |
2681 | { | |
2682 | if ((ol->type & opt_hidden) == 0) | |
12f69989 | 2683 | print_ol(ol, US ol->name, d, d->info->options, *(d->info->options_count), no_labels); |
059ec3d9 PH |
2684 | } |
2685 | if (name != NULL) return; | |
2686 | } | |
2687 | if (name != NULL) printf("%s %s not found\n", type, name); | |
2688 | } | |
2689 | ||
2690 | ||
2691 | ||
2692 | /************************************************* | |
2693 | * Read a named list item * | |
2694 | *************************************************/ | |
2695 | ||
2696 | /* This function reads a name and a list (i.e. string). The name is used to | |
2697 | save the list in a tree, sorted by its name. Each entry also has a number, | |
2698 | which can be used for caching tests, but if the string contains any expansion | |
2699 | items other than $key, the number is set negative to inhibit caching. This | |
2700 | mechanism is used for domain, host, and address lists that are referenced by | |
2701 | the "+name" syntax. | |
2702 | ||
2703 | Arguments: | |
2704 | anchorp points to the tree anchor | |
2705 | numberp points to the current number for this tree | |
2706 | max the maximum number permitted | |
2707 | s the text of the option line, starting immediately after the name | |
2708 | of the list type | |
2709 | tname the name of the list type, for messages | |
2710 | ||
2711 | Returns: nothing | |
2712 | */ | |
2713 | ||
2714 | static void | |
2715 | read_named_list(tree_node **anchorp, int *numberp, int max, uschar *s, | |
2716 | uschar *tname) | |
2717 | { | |
2718 | BOOL forcecache = FALSE; | |
2719 | uschar *ss; | |
2720 | tree_node *t; | |
2721 | namedlist_block *nb = store_get(sizeof(namedlist_block)); | |
2722 | ||
2723 | if (Ustrncmp(s, "_cache", 6) == 0) | |
2724 | { | |
2725 | forcecache = TRUE; | |
2726 | s += 6; | |
2727 | } | |
2728 | ||
2729 | if (!isspace(*s)) | |
2730 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unrecognized configuration line"); | |
2731 | ||
2732 | if (*numberp >= max) | |
2733 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "too many named %ss (max is %d)\n", | |
2734 | tname, max); | |
2735 | ||
2736 | while (isspace(*s)) s++; | |
2737 | ss = s; | |
2738 | while (isalnum(*s) || *s == '_') s++; | |
2739 | t = store_get(sizeof(tree_node) + s-ss); | |
2740 | Ustrncpy(t->name, ss, s-ss); | |
2741 | t->name[s-ss] = 0; | |
2742 | while (isspace(*s)) s++; | |
2743 | ||
2744 | if (!tree_insertnode(anchorp, t)) | |
2745 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2746 | "duplicate name \"%s\" for a named %s", t->name, tname); | |
2747 | ||
2748 | t->data.ptr = nb; | |
2749 | nb->number = *numberp; | |
2750 | *numberp += 1; | |
2751 | ||
2752 | if (*s++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
2753 | "missing '=' after \"%s\"", t->name); | |
2754 | while (isspace(*s)) s++; | |
2755 | nb->string = read_string(s, t->name); | |
2756 | nb->cache_data = NULL; | |
2757 | ||
2758 | /* Check the string for any expansions; if any are found, mark this list | |
2759 | uncacheable unless the user has explicited forced caching. */ | |
2760 | ||
2761 | if (!forcecache && Ustrchr(nb->string, '$') != NULL) nb->number = -1; | |
2762 | } | |
2763 | ||
2764 | ||
2765 | ||
2766 | ||
2767 | /************************************************* | |
2768 | * Unpick data for a rate limit * | |
2769 | *************************************************/ | |
2770 | ||
2771 | /* This function is called to unpick smtp_ratelimit_{mail,rcpt} into four | |
2772 | separate values. | |
2773 | ||
2774 | Arguments: | |
2775 | s string, in the form t,b,f,l | |
2776 | where t is the threshold (integer) | |
2777 | b is the initial delay (time) | |
2778 | f is the multiplicative factor (fixed point) | |
2779 | k is the maximum time (time) | |
2780 | threshold where to store threshold | |
2781 | base where to store base in milliseconds | |
2782 | factor where to store factor in milliseconds | |
2783 | limit where to store limit | |
2784 | ||
2785 | Returns: nothing (panics on error) | |
2786 | */ | |
2787 | ||
2788 | static void | |
2789 | unpick_ratelimit(uschar *s, int *threshold, int *base, double *factor, | |
2790 | int *limit) | |
2791 | { | |
2792 | uschar bstring[16], lstring[16]; | |
2793 | ||
2794 | if (sscanf(CS s, "%d, %15[0123456789smhdw.], %lf, %15s", threshold, bstring, | |
2795 | factor, lstring) == 4) | |
2796 | { | |
2797 | *base = readconf_readtime(bstring, 0, TRUE); | |
2798 | *limit = readconf_readtime(lstring, 0, TRUE); | |
2799 | if (*base >= 0 && *limit >= 0) return; | |
2800 | } | |
2801 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "malformed ratelimit data: %s", s); | |
2802 | } | |
2803 | ||
2804 | ||
2805 | ||
2806 | ||
3375e053 PP |
2807 | /************************************************* |
2808 | * Drop privs for checking TLS config * | |
2809 | *************************************************/ | |
2810 | ||
2811 | /* We want to validate TLS options during readconf, but do not want to be | |
2812 | root when we call into the TLS library, in case of library linkage errors | |
2813 | which cause segfaults; before this check, those were always done as the Exim | |
2814 | runtime user and it makes sense to continue with that. | |
2815 | ||
2816 | Assumes: tls_require_ciphers has been set, if it will be | |
2817 | exim_user has been set, if it will be | |
2818 | exim_group has been set, if it will be | |
2819 | ||
2820 | Returns: bool for "okay"; false will cause caller to immediately exit. | |
2821 | */ | |
2822 | ||
2823 | #ifdef SUPPORT_TLS | |
2824 | static BOOL | |
2825 | tls_dropprivs_validate_require_cipher(void) | |
2826 | { | |
2827 | const uschar *errmsg; | |
2828 | pid_t pid; | |
2829 | int rc, status; | |
2830 | void (*oldsignal)(int); | |
2831 | ||
2832 | oldsignal = signal(SIGCHLD, SIG_DFL); | |
2833 | ||
2834 | fflush(NULL); | |
2835 | if ((pid = fork()) < 0) | |
2836 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "fork failed for TLS check"); | |
2837 | ||
2838 | if (pid == 0) | |
2839 | { | |
1d7a353e PP |
2840 | /* in some modes, will have dropped privilege already */ |
2841 | if (!geteuid()) | |
2842 | exim_setugid(exim_uid, exim_gid, FALSE, | |
2843 | US"calling tls_validate_require_cipher"); | |
3375e053 PP |
2844 | |
2845 | errmsg = tls_validate_require_cipher(); | |
2846 | if (errmsg) | |
2847 | { | |
2848 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
2849 | "tls_require_ciphers invalid: %s", errmsg); | |
2850 | } | |
2851 | fflush(NULL); | |
2852 | _exit(0); | |
2853 | } | |
2854 | ||
2855 | do { | |
2856 | rc = waitpid(pid, &status, 0); | |
2857 | } while (rc < 0 && errno == EINTR); | |
2858 | ||
9d26b8c0 | 2859 | DEBUG(D_tls) |
3375e053 PP |
2860 | debug_printf("tls_validate_require_cipher child %d ended: status=0x%x\n", |
2861 | (int)pid, status); | |
2862 | ||
2863 | signal(SIGCHLD, oldsignal); | |
2864 | ||
2865 | return status == 0; | |
2866 | } | |
2867 | #endif /* SUPPORT_TLS */ | |
2868 | ||
2869 | ||
2870 | ||
2871 | ||
059ec3d9 PH |
2872 | /************************************************* |
2873 | * Read main configuration options * | |
2874 | *************************************************/ | |
2875 | ||
2876 | /* This function is the first to be called for configuration reading. It | |
2877 | opens the configuration file and reads general configuration settings until | |
2878 | it reaches the end of the configuration section. The file is then left open so | |
2879 | that the remaining configuration data can subsequently be read if needed for | |
2880 | this run of Exim. | |
2881 | ||
2882 | The configuration file must be owned either by root or exim, and be writeable | |
2883 | only by root or uid/gid exim. The values for Exim's uid and gid can be changed | |
2884 | in the config file, so the test is done on the compiled in values. A slight | |
2885 | anomaly, to be carefully documented. | |
2886 | ||
2887 | The name of the configuration file is taken from a list that is included in the | |
2888 | binary of Exim. It can be altered from the command line, but if that is done, | |
2889 | root privilege is immediately withdrawn unless the caller is root or exim. | |
2890 | The first file on the list that exists is used. | |
2891 | ||
2892 | For use on multiple systems that share file systems, first look for a | |
2893 | configuration file whose name has the current node name on the end. If that is | |
2894 | not found, try the generic name. For really contorted configurations, that run | |
2895 | multiple Exims with different uid settings, first try adding the effective uid | |
2896 | before the node name. These complications are going to waste resources on most | |
2897 | systems. Therefore they are available only when requested by compile-time | |
2898 | options. */ | |
2899 | ||
2900 | void | |
2901 | readconf_main(void) | |
2902 | { | |
2903 | int sep = 0; | |
2904 | struct stat statbuf; | |
2905 | uschar *s, *filename; | |
2906 | uschar *list = config_main_filelist; | |
2907 | ||
2908 | /* Loop through the possible file names */ | |
2909 | ||
2910 | while((filename = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)) | |
2911 | != NULL) | |
2912 | { | |
2913 | /* Cut out all the fancy processing unless specifically wanted */ | |
2914 | ||
2915 | #if defined(CONFIGURE_FILE_USE_NODE) || defined(CONFIGURE_FILE_USE_EUID) | |
2916 | uschar *suffix = filename + Ustrlen(filename); | |
2917 | ||
2918 | /* Try for the node-specific file if a node name exists */ | |
2919 | ||
2920 | #ifdef CONFIGURE_FILE_USE_NODE | |
2921 | struct utsname uts; | |
2922 | if (uname(&uts) >= 0) | |
2923 | { | |
2924 | #ifdef CONFIGURE_FILE_USE_EUID | |
2925 | sprintf(CS suffix, ".%ld.%.256s", (long int)original_euid, uts.nodename); | |
2926 | config_file = Ufopen(filename, "rb"); | |
2927 | if (config_file == NULL) | |
2928 | #endif /* CONFIGURE_FILE_USE_EUID */ | |
2929 | { | |
2930 | sprintf(CS suffix, ".%.256s", uts.nodename); | |
2931 | config_file = Ufopen(filename, "rb"); | |
2932 | } | |
2933 | } | |
2934 | #endif /* CONFIGURE_FILE_USE_NODE */ | |
2935 | ||
2936 | /* Otherwise, try the generic name, possibly with the euid added */ | |
2937 | ||
2938 | #ifdef CONFIGURE_FILE_USE_EUID | |
2939 | if (config_file == NULL) | |
2940 | { | |
2941 | sprintf(CS suffix, ".%ld", (long int)original_euid); | |
2942 | config_file = Ufopen(filename, "rb"); | |
2943 | } | |
2944 | #endif /* CONFIGURE_FILE_USE_EUID */ | |
2945 | ||
2946 | /* Finally, try the unadorned name */ | |
2947 | ||
2948 | if (config_file == NULL) | |
2949 | { | |
2950 | *suffix = 0; | |
2951 | config_file = Ufopen(filename, "rb"); | |
2952 | } | |
2953 | #else /* if neither defined */ | |
2954 | ||
2955 | /* This is the common case when the fancy processing is not included. */ | |
2956 | ||
2957 | config_file = Ufopen(filename, "rb"); | |
2958 | #endif | |
2959 | ||
2960 | /* If the file does not exist, continue to try any others. For any other | |
2961 | error, break out (and die). */ | |
2962 | ||
2963 | if (config_file != NULL || errno != ENOENT) break; | |
2964 | } | |
2965 | ||
2966 | /* On success, save the name for verification; config_filename is used when | |
2967 | logging configuration errors (it changes for .included files) whereas | |
2968 | config_main_filename is the name shown by -bP. Failure to open a configuration | |
2969 | file is a serious disaster. */ | |
2970 | ||
2971 | if (config_file != NULL) | |
2972 | { | |
2973 | config_filename = config_main_filename = string_copy(filename); | |
2974 | } | |
2975 | else | |
2976 | { | |
2977 | if (filename == NULL) | |
2978 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "non-existent configuration file(s): " | |
2979 | "%s", config_main_filelist); | |
2980 | else | |
2981 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "%s", string_open_failed(errno, | |
2982 | "configuration file %s", filename)); | |
2983 | } | |
2984 | ||
e2f5dc15 | 2985 | /* Check the status of the file we have opened, if we have retained root |
fea24b2e | 2986 | privileges and the file isn't /dev/null (which *should* be 0666). */ |
059ec3d9 | 2987 | |
fea24b2e | 2988 | if (trusted_config && Ustrcmp(filename, US"/dev/null")) |
059ec3d9 PH |
2989 | { |
2990 | if (fstat(fileno(config_file), &statbuf) != 0) | |
2991 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to stat configuration file %s", | |
2992 | big_buffer); | |
2993 | ||
c1d94452 | 2994 | if ((statbuf.st_uid != root_uid /* owner not root */ |
059ec3d9 PH |
2995 | #ifdef CONFIGURE_OWNER |
2996 | && statbuf.st_uid != config_uid /* owner not the special one */ | |
2997 | #endif | |
2998 | ) || /* or */ | |
c1d94452 | 2999 | (statbuf.st_gid != root_gid /* group not root & */ |
35edf2ff PH |
3000 | #ifdef CONFIGURE_GROUP |
3001 | && statbuf.st_gid != config_gid /* group not the special one */ | |
8e669ac1 | 3002 | #endif |
35edf2ff | 3003 | && (statbuf.st_mode & 020) != 0) || /* group writeable */ |
059ec3d9 PH |
3004 | /* or */ |
3005 | ((statbuf.st_mode & 2) != 0)) /* world writeable */ | |
3006 | ||
3007 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Exim configuration file %s has the " | |
3008 | "wrong owner, group, or mode", big_buffer); | |
3009 | } | |
3010 | ||
3011 | /* Process the main configuration settings. They all begin with a lower case | |
3012 | letter. If we see something starting with an upper case letter, it is taken as | |
3013 | a macro definition. */ | |
3014 | ||
3015 | while ((s = get_config_line()) != NULL) | |
3016 | { | |
cf00dad6 | 3017 | if (isupper(s[0])) read_macro_assignment(s); |
059ec3d9 PH |
3018 | |
3019 | else if (Ustrncmp(s, "domainlist", 10) == 0) | |
3020 | read_named_list(&domainlist_anchor, &domainlist_count, | |
3021 | MAX_NAMED_LIST, s+10, US"domain list"); | |
3022 | ||
3023 | else if (Ustrncmp(s, "hostlist", 8) == 0) | |
3024 | read_named_list(&hostlist_anchor, &hostlist_count, | |
3025 | MAX_NAMED_LIST, s+8, US"host list"); | |
3026 | ||
3027 | else if (Ustrncmp(s, US"addresslist", 11) == 0) | |
3028 | read_named_list(&addresslist_anchor, &addresslist_count, | |
3029 | MAX_NAMED_LIST, s+11, US"address list"); | |
3030 | ||
3031 | else if (Ustrncmp(s, US"localpartlist", 13) == 0) | |
3032 | read_named_list(&localpartlist_anchor, &localpartlist_count, | |
3033 | MAX_NAMED_LIST, s+13, US"local part list"); | |
3034 | ||
3035 | else | |
3036 | (void) readconf_handle_option(s, optionlist_config, optionlist_config_size, | |
3037 | NULL, US"main option \"%s\" unknown"); | |
3038 | } | |
3039 | ||
3040 | ||
3041 | /* If local_sender_retain is set, local_from_check must be unset. */ | |
3042 | ||
3043 | if (local_sender_retain && local_from_check) | |
3044 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "both local_from_check and " | |
3045 | "local_sender_retain are set; this combination is not allowed"); | |
3046 | ||
3047 | /* If the timezone string is empty, set it to NULL, implying no TZ variable | |
3048 | wanted. */ | |
3049 | ||
3050 | if (timezone_string != NULL && *timezone_string == 0) timezone_string = NULL; | |
3051 | ||
944a9c55 PH |
3052 | /* The max retry interval must not be greater than 24 hours. */ |
3053 | ||
3054 | if (retry_interval_max > 24*60*60) retry_interval_max = 24*60*60; | |
3055 | ||
059ec3d9 PH |
3056 | /* remote_max_parallel must be > 0 */ |
3057 | ||
3058 | if (remote_max_parallel <= 0) remote_max_parallel = 1; | |
3059 | ||
6a3f1455 PH |
3060 | /* Save the configured setting of freeze_tell, so we can re-instate it at the |
3061 | start of a new SMTP message. */ | |
3062 | ||
3063 | freeze_tell_config = freeze_tell; | |
3064 | ||
059ec3d9 PH |
3065 | /* The primary host name may be required for expansion of spool_directory |
3066 | and log_file_path, so make sure it is set asap. It is obtained from uname(), | |
3067 | but if that yields an unqualified value, make a FQDN by using gethostbyname to | |
3068 | canonize it. Some people like upper case letters in their host names, so we | |
3069 | don't force the case. */ | |
3070 | ||
3071 | if (primary_hostname == NULL) | |
3072 | { | |
3073 | uschar *hostname; | |
3074 | struct utsname uts; | |
3075 | if (uname(&uts) < 0) | |
3076 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "uname() failed to yield host name"); | |
3077 | hostname = US uts.nodename; | |
3078 | ||
3079 | if (Ustrchr(hostname, '.') == NULL) | |
3080 | { | |
3081 | int af = AF_INET; | |
3082 | struct hostent *hostdata; | |
3083 | ||
3084 | #if HAVE_IPV6 | |
7e66e54d | 3085 | if (!disable_ipv6 && (dns_ipv4_lookup == NULL || |
059ec3d9 | 3086 | match_isinlist(hostname, &dns_ipv4_lookup, 0, NULL, NULL, MCL_DOMAIN, |
7e66e54d | 3087 | TRUE, NULL) != OK)) |
059ec3d9 PH |
3088 | af = AF_INET6; |
3089 | #else | |
3090 | af = AF_INET; | |
3091 | #endif | |
3092 | ||
3093 | for (;;) | |
3094 | { | |
3095 | #if HAVE_IPV6 | |
3096 | #if HAVE_GETIPNODEBYNAME | |
3097 | int error_num; | |
3098 | hostdata = getipnodebyname(CS hostname, af, 0, &error_num); | |
3099 | #else | |
3100 | hostdata = gethostbyname2(CS hostname, af); | |
3101 | #endif | |
3102 | #else | |
3103 | hostdata = gethostbyname(CS hostname); | |
3104 | #endif | |
3105 | ||
3106 | if (hostdata != NULL) | |
3107 | { | |
3108 | hostname = US hostdata->h_name; | |
3109 | break; | |
3110 | } | |
3111 | ||
3112 | if (af == AF_INET) break; | |
3113 | af = AF_INET; | |
3114 | } | |
3115 | } | |
3116 | ||
3117 | primary_hostname = string_copy(hostname); | |
3118 | } | |
3119 | ||
3120 | /* Set up default value for smtp_active_hostname */ | |
3121 | ||
3122 | smtp_active_hostname = primary_hostname; | |
3123 | ||
3124 | /* If spool_directory wasn't set in the build-time configuration, it must have | |
3125 | got set above. Of course, writing to the log may not work if log_file_path is | |
3126 | not set, but it will at least get to syslog or somewhere, with any luck. */ | |
3127 | ||
3128 | if (*spool_directory == 0) | |
3129 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "spool_directory undefined: cannot " | |
3130 | "proceed"); | |
3131 | ||
3132 | /* Expand the spool directory name; it may, for example, contain the primary | |
3133 | host name. Same comment about failure. */ | |
3134 | ||
3135 | s = expand_string(spool_directory); | |
3136 | if (s == NULL) | |
3137 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand spool_directory " | |
3138 | "\"%s\": %s", spool_directory, expand_string_message); | |
3139 | spool_directory = s; | |
3140 | ||
3141 | /* Expand log_file_path, which must contain "%s" in any component that isn't | |
f1e5fef5 PP |
3142 | the null string or "syslog". It is also allowed to contain one instance of %D |
3143 | or %M. However, it must NOT contain % followed by anything else. */ | |
059ec3d9 PH |
3144 | |
3145 | if (*log_file_path != 0) | |
3146 | { | |
3147 | uschar *ss, *sss; | |
3148 | int sep = ':'; /* Fixed for log file path */ | |
3149 | s = expand_string(log_file_path); | |
3150 | if (s == NULL) | |
3151 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand log_file_path " | |
3152 | "\"%s\": %s", log_file_path, expand_string_message); | |
3153 | ||
3154 | ss = s; | |
3155 | while ((sss = string_nextinlist(&ss,&sep,big_buffer,big_buffer_size)) != NULL) | |
3156 | { | |
3157 | uschar *t; | |
3158 | if (sss[0] == 0 || Ustrcmp(sss, "syslog") == 0) continue; | |
3159 | t = Ustrstr(sss, "%s"); | |
3160 | if (t == NULL) | |
3161 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" does not " | |
3162 | "contain \"%%s\"", sss); | |
3163 | *t = 'X'; | |
3164 | t = Ustrchr(sss, '%'); | |
3165 | if (t != NULL) | |
3166 | { | |
f1e5fef5 | 3167 | if ((t[1] != 'D' && t[1] != 'M') || Ustrchr(t+2, '%') != NULL) |
059ec3d9 PH |
3168 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "log_file_path \"%s\" contains " |
3169 | "unexpected \"%%\" character", s); | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | log_file_path = s; | |
3174 | } | |
3175 | ||
3176 | /* Interpret syslog_facility into an integer argument for 'ident' param to | |
3177 | openlog(). Default is LOG_MAIL set in globals.c. Allow the user to omit the | |
3178 | leading "log_". */ | |
3179 | ||
3180 | if (syslog_facility_str != NULL) | |
3181 | { | |
3182 | int i; | |
3183 | uschar *s = syslog_facility_str; | |
3184 | ||
3185 | if ((Ustrlen(syslog_facility_str) >= 4) && | |
3186 | (strncmpic(syslog_facility_str, US"log_", 4) == 0)) | |
3187 | s += 4; | |
3188 | ||
3189 | for (i = 0; i < syslog_list_size; i++) | |
3190 | { | |
3191 | if (strcmpic(s, syslog_list[i].name) == 0) | |
3192 | { | |
3193 | syslog_facility = syslog_list[i].value; | |
3194 | break; | |
3195 | } | |
3196 | } | |
3197 | ||
3198 | if (i >= syslog_list_size) | |
3199 | { | |
3200 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3201 | "failed to interpret syslog_facility \"%s\"", syslog_facility_str); | |
3202 | } | |
3203 | } | |
3204 | ||
3205 | /* Expand pid_file_path */ | |
3206 | ||
3207 | if (*pid_file_path != 0) | |
3208 | { | |
3209 | s = expand_string(pid_file_path); | |
3210 | if (s == NULL) | |
3211 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to expand pid_file_path " | |
3212 | "\"%s\": %s", pid_file_path, expand_string_message); | |
3213 | pid_file_path = s; | |
3214 | } | |
3215 | ||
921b12ca TF |
3216 | /* Set default value of process_log_path */ |
3217 | ||
3218 | if (process_log_path == NULL || *process_log_path =='\0') | |
3219 | process_log_path = string_sprintf("%s/exim-process.info", spool_directory); | |
3220 | ||
059ec3d9 PH |
3221 | /* Compile the regex for matching a UUCP-style "From_" line in an incoming |
3222 | message. */ | |
3223 | ||
3224 | regex_From = regex_must_compile(uucp_from_pattern, FALSE, TRUE); | |
3225 | ||
3226 | /* Unpick the SMTP rate limiting options, if set */ | |
3227 | ||
3228 | if (smtp_ratelimit_mail != NULL) | |
3229 | { | |
3230 | unpick_ratelimit(smtp_ratelimit_mail, &smtp_rlm_threshold, | |
3231 | &smtp_rlm_base, &smtp_rlm_factor, &smtp_rlm_limit); | |
3232 | } | |
3233 | ||
3234 | if (smtp_ratelimit_rcpt != NULL) | |
3235 | { | |
3236 | unpick_ratelimit(smtp_ratelimit_rcpt, &smtp_rlr_threshold, | |
3237 | &smtp_rlr_base, &smtp_rlr_factor, &smtp_rlr_limit); | |
3238 | } | |
3239 | ||
3240 | /* The qualify domains default to the primary host name */ | |
3241 | ||
3242 | if (qualify_domain_sender == NULL) | |
3243 | qualify_domain_sender = primary_hostname; | |
3244 | if (qualify_domain_recipient == NULL) | |
3245 | qualify_domain_recipient = qualify_domain_sender; | |
3246 | ||
3247 | /* Setting system_filter_user in the configuration sets the gid as well if a | |
3248 | name is given, but a numerical value does not. */ | |
3249 | ||
3250 | if (system_filter_uid_set && !system_filter_gid_set) | |
3251 | { | |
3252 | struct passwd *pw = getpwuid(system_filter_uid); | |
3253 | if (pw == NULL) | |
3254 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed to look up uid %ld", | |
3255 | (long int)system_filter_uid); | |
3256 | system_filter_gid = pw->pw_gid; | |
3257 | system_filter_gid_set = TRUE; | |
3258 | } | |
3259 | ||
3260 | /* If the errors_reply_to field is set, check that it is syntactically valid | |
3261 | and ensure it contains a domain. */ | |
3262 | ||
3263 | if (errors_reply_to != NULL) | |
3264 | { | |
3265 | uschar *errmess; | |
3266 | int start, end, domain; | |
3267 | uschar *recipient = parse_extract_address(errors_reply_to, &errmess, | |
3268 | &start, &end, &domain, FALSE); | |
3269 | ||
3270 | if (recipient == NULL) | |
3271 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3272 | "error in errors_reply_to (%s): %s", errors_reply_to, errmess); | |
3273 | ||
3274 | if (domain == 0) | |
3275 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3276 | "errors_reply_to (%s) does not contain a domain", errors_reply_to); | |
3277 | } | |
3278 | ||
3279 | /* If smtp_accept_queue or smtp_accept_max_per_host is set, then | |
3280 | smtp_accept_max must also be set. */ | |
3281 | ||
3282 | if (smtp_accept_max == 0 && | |
3283 | (smtp_accept_queue > 0 || smtp_accept_max_per_host != NULL)) | |
3284 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3285 | "smtp_accept_max must be set if smtp_accept_queue or " | |
3286 | "smtp_accept_max_per_host is set"); | |
3287 | ||
3288 | /* Set up the host number if anything is specified. It is an expanded string | |
3289 | so that it can be computed from the host name, for example. We do this last | |
3290 | so as to ensure that everything else is set up before the expansion. */ | |
3291 | ||
3292 | if (host_number_string != NULL) | |
3293 | { | |
ef840681 | 3294 | long int n; |
059ec3d9 PH |
3295 | uschar *end; |
3296 | uschar *s = expand_string(host_number_string); | |
ef840681 PP |
3297 | if (s == NULL) |
3298 | log_write(0, LOG_MAIN|LOG_PANIC_DIE, | |
3299 | "failed to expand localhost_number \"%s\": %s", | |
3300 | host_number_string, expand_string_message); | |
3301 | n = Ustrtol(s, &end, 0); | |
059ec3d9 PH |
3302 | while (isspace(*end)) end++; |
3303 | if (*end != 0) | |
3304 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3305 | "localhost_number value is not a number: %s", s); | |
3306 | if (n > LOCALHOST_MAX) | |
3307 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3308 | "localhost_number is greater than the maximum allowed value (%d)", | |
3309 | LOCALHOST_MAX); | |
3310 | host_number = n; | |
3311 | } | |
3312 | ||
3313 | #ifdef SUPPORT_TLS | |
3314 | /* If tls_verify_hosts is set, tls_verify_certificates must also be set */ | |
3315 | ||
3316 | if ((tls_verify_hosts != NULL || tls_try_verify_hosts != NULL) && | |
3317 | tls_verify_certificates == NULL) | |
3318 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3319 | "tls_%sverify_hosts is set, but tls_verify_certificates is not set", | |
3320 | (tls_verify_hosts != NULL)? "" : "try_"); | |
77bb000f | 3321 | |
3375e053 PP |
3322 | /* This also checks that the library linkage is working and we can call |
3323 | routines in it, so call even if tls_require_ciphers is unset */ | |
3324 | if (!tls_dropprivs_validate_require_cipher()) | |
3325 | exit(1); | |
3326 | ||
3327 | /* Magic number: at time of writing, 1024 has been the long-standing value | |
3328 | used by so many clients, and what Exim used to use always, that it makes | |
3329 | sense to just min-clamp this max-clamp at that. */ | |
3330 | if (tls_dh_max_bits < 1024) | |
3331 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3332 | "tls_dh_max_bits is too small, must be at least 1024 for interop"); | |
3333 | ||
77bb000f PP |
3334 | /* If openssl_options is set, validate it */ |
3335 | if (openssl_options != NULL) | |
3336 | { | |
3337 | # ifdef USE_GNUTLS | |
3338 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
a053d125 | 3339 | "openssl_options is set but we're using GnuTLS"); |
77bb000f PP |
3340 | # else |
3341 | long dummy; | |
3342 | if (!(tls_openssl_options_parse(openssl_options, &dummy))) | |
3343 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
a053d125 | 3344 | "openssl_options parse error: %s", openssl_options); |
77bb000f PP |
3345 | # endif |
3346 | } | |
059ec3d9 PH |
3347 | #endif |
3348 | } | |
3349 | ||
3350 | ||
3351 | ||
3352 | /************************************************* | |
3353 | * Initialize one driver * | |
3354 | *************************************************/ | |
3355 | ||
3356 | /* This is called once the driver's generic options, if any, have been read. | |
3357 | We can now find the driver, set up defaults for the private options, and | |
3358 | unset any "set" bits in the private options table (which might have been | |
3359 | set by another incarnation of the same driver). | |
3360 | ||
3361 | Arguments: | |
3362 | d pointer to driver instance block, with generic | |
3363 | options filled in | |
3364 | drivers_available vector of available drivers | |
3365 | size_of_info size of each block in drivers_available | |
3366 | class class of driver, for error message | |
3367 | ||
3368 | Returns: pointer to the driver info block | |
3369 | */ | |
3370 | ||
3371 | static driver_info * | |
3372 | init_driver(driver_instance *d, driver_info *drivers_available, | |
3373 | int size_of_info, uschar *class) | |
3374 | { | |
3375 | driver_info *dd; | |
3376 | ||
3377 | for (dd = drivers_available; dd->driver_name[0] != 0; | |
3378 | dd = (driver_info *)(((uschar *)dd) + size_of_info)) | |
3379 | { | |
3380 | if (Ustrcmp(d->driver_name, dd->driver_name) == 0) | |
3381 | { | |
3382 | int i; | |
3383 | int len = dd->options_len; | |
3384 | d->info = dd; | |
3385 | d->options_block = store_get(len); | |
3386 | memcpy(d->options_block, dd->options_block, len); | |
3387 | for (i = 0; i < *(dd->options_count); i++) | |
3388 | dd->options[i].type &= ~opt_set; | |
3389 | return dd; | |
3390 | } | |
3391 | } | |
3392 | ||
3393 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3394 | "%s %s: cannot find %s driver \"%s\"", class, d->name, class, d->driver_name); | |
3395 | ||
3396 | return NULL; /* never obeyed */ | |
3397 | } | |
3398 | ||
3399 | ||
3400 | ||
3401 | ||
3402 | /************************************************* | |
3403 | * Initialize driver list * | |
3404 | *************************************************/ | |
3405 | ||
3406 | /* This function is called for routers, transports, and authentication | |
3407 | mechanisms. It reads the data from the current point in the configuration file | |
3408 | up to the end of the section, and sets up a chain of instance blocks according | |
3409 | to the file's contents. The file will already have been opened by a call to | |
3410 | readconf_main, and must be left open for subsequent reading of further data. | |
3411 | ||
3412 | Any errors cause a panic crash. Note that the blocks with names driver_info and | |
3413 | driver_instance must map the first portions of all the _info and _instance | |
3414 | blocks for this shared code to work. | |
3415 | ||
3416 | Arguments: | |
3417 | class "router", "transport", or "authenticator" | |
3418 | anchor &routers, &transports, &auths | |
3419 | drivers_available available drivers | |
3420 | size_of_info size of each info block | |
3421 | instance_default points to default data for an instance | |
3422 | instance_size size of instance block | |
3423 | driver_optionlist generic option list | |
3424 | driver_optionlist_count count of generic option list | |
3425 | ||
3426 | Returns: nothing | |
3427 | */ | |
3428 | ||
3429 | void | |
3430 | readconf_driver_init( | |
3431 | uschar *class, | |
3432 | driver_instance **anchor, | |
3433 | driver_info *drivers_available, | |
3434 | int size_of_info, | |
3435 | void *instance_default, | |
3436 | int instance_size, | |
3437 | optionlist *driver_optionlist, | |
3438 | int driver_optionlist_count) | |
3439 | { | |
3440 | driver_instance **p = anchor; | |
3441 | driver_instance *d = NULL; | |
3442 | uschar *buffer; | |
3443 | ||
059ec3d9 PH |
3444 | while ((buffer = get_config_line()) != NULL) |
3445 | { | |
3446 | uschar name[64]; | |
cf00dad6 | 3447 | uschar *s; |
059ec3d9 | 3448 | |
cf00dad6 PH |
3449 | /* Read the first name on the line and test for the start of a new driver. A |
3450 | macro definition indicates the end of the previous driver. If this isn't the | |
3451 | start of a new driver, the line will be re-read. */ | |
059ec3d9 | 3452 | |
cf00dad6 PH |
3453 | s = readconf_readname(name, sizeof(name), buffer); |
3454 | ||
3455 | /* Handle macro definition, first finishing off the initialization of the | |
3456 | previous driver, if any. */ | |
3457 | ||
3458 | if (isupper(*name) && *s == '=') | |
3459 | { | |
3460 | if (d != NULL) | |
3461 | { | |
3462 | if (d->driver_name == NULL) | |
3463 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3464 | "no driver defined for %s \"%s\"", class, d->name); | |
3465 | (d->info->init)(d); | |
3466 | d = NULL; | |
3467 | } | |
3468 | read_macro_assignment(buffer); | |
3469 | continue; | |
3470 | } | |
059ec3d9 PH |
3471 | |
3472 | /* If the line starts with a name terminated by a colon, we are at the | |
3473 | start of the definition of a new driver. The rest of the line must be | |
3474 | blank. */ | |
3475 | ||
3476 | if (*s++ == ':') | |
3477 | { | |
3478 | int i; | |
3479 | ||
3480 | /* Finish off initializing the previous driver. */ | |
3481 | ||
3482 | if (d != NULL) | |
3483 | { | |
3484 | if (d->driver_name == NULL) | |
3485 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3486 | "no driver defined for %s \"%s\"", class, d->name); | |
3487 | (d->info->init)(d); | |
3488 | } | |
3489 | ||
3490 | /* Check that we haven't already got a driver of this name */ | |
3491 | ||
3492 | for (d = *anchor; d != NULL; d = d->next) | |
3493 | if (Ustrcmp(name, d->name) == 0) | |
3494 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3495 | "there are two %ss called \"%s\"", class, name); | |
3496 | ||
3497 | /* Set up a new driver instance data block on the chain, with | |
3498 | its default values installed. */ | |
3499 | ||
3500 | d = store_get(instance_size); | |
3501 | memcpy(d, instance_default, instance_size); | |
3502 | *p = d; | |
3503 | p = &(d->next); | |
3504 | d->name = string_copy(name); | |
3505 | ||
3506 | /* Clear out the "set" bits in the generic options */ | |
3507 | ||
3508 | for (i = 0; i < driver_optionlist_count; i++) | |
3509 | driver_optionlist[i].type &= ~opt_set; | |
3510 | ||
3511 | /* Check nothing more on this line, then do the next loop iteration. */ | |
3512 | ||
3513 | while (isspace(*s)) s++; | |
3514 | if (*s != 0) extra_chars_error(s, US"driver name ", name, US""); | |
3515 | continue; | |
3516 | } | |
3517 | ||
cf00dad6 PH |
3518 | /* Not the start of a new driver. Give an error if we have not set up a |
3519 | current driver yet. */ | |
059ec3d9 PH |
3520 | |
3521 | if (d == NULL) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3522 | "%s name missing", class); | |
3523 | ||
3524 | /* First look to see if this is a generic option; if it is "driver", | |
3525 | initialize the driver. If is it not a generic option, we can look for a | |
3526 | private option provided that the driver has been previously set up. */ | |
3527 | ||
3528 | if (readconf_handle_option(buffer, driver_optionlist, | |
3529 | driver_optionlist_count, d, NULL)) | |
3530 | { | |
3531 | if (d->info == NULL && d->driver_name != NULL) | |
3532 | init_driver(d, drivers_available, size_of_info, class); | |
3533 | } | |
3534 | ||
3535 | /* Handle private options - pass the generic block because some may | |
3536 | live therein. A flag with each option indicates if it is in the public | |
3537 | block. */ | |
3538 | ||
3539 | else if (d->info != NULL) | |
3540 | { | |
3541 | readconf_handle_option(buffer, d->info->options, | |
3542 | *(d->info->options_count), d, US"option \"%s\" unknown"); | |
3543 | } | |
3544 | ||
3545 | /* The option is not generic and the driver name has not yet been given. */ | |
3546 | ||
3547 | else log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "option \"%s\" unknown " | |
3548 | "(\"driver\" must be specified before any private options)", name); | |
3549 | } | |
3550 | ||
3551 | /* Run the initialization function for the final driver. */ | |
3552 | ||
3553 | if (d != NULL) | |
3554 | { | |
3555 | if (d->driver_name == NULL) | |
3556 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, | |
3557 | "no driver defined for %s \"%s\"", class, d->name); | |
3558 | (d->info->init)(d); | |
3559 | } | |
3560 | } | |
3561 | ||
3562 | ||
3563 | ||
3564 | /************************************************* | |
3565 | * Check driver dependency * | |
3566 | *************************************************/ | |
3567 | ||
3568 | /* This function is passed a driver instance and a string. It checks whether | |
3569 | any of the string options for the driver contains the given string as an | |
3570 | expansion variable. | |
3571 | ||
3572 | Arguments: | |
3573 | d points to a driver instance block | |
3574 | s the string to search for | |
3575 | ||
3576 | Returns: TRUE if a dependency is found | |
3577 | */ | |
3578 | ||
3579 | BOOL | |
3580 | readconf_depends(driver_instance *d, uschar *s) | |
3581 | { | |
3582 | int count = *(d->info->options_count); | |
3583 | optionlist *ol; | |
3584 | uschar *ss; | |
3585 | ||
3586 | for (ol = d->info->options; ol < d->info->options + count; ol++) | |
3587 | { | |
3588 | void *options_block; | |
3589 | uschar *value; | |
3590 | int type = ol->type & opt_mask; | |
3591 | if (type != opt_stringptr) continue; | |
3592 | options_block = ((ol->type & opt_public) == 0)? d->options_block : (void *)d; | |
3593 | value = *(uschar **)((uschar *)options_block + (long int)(ol->value)); | |
3594 | if (value != NULL && (ss = Ustrstr(value, s)) != NULL) | |
3595 | { | |
3596 | if (ss <= value || (ss[-1] != '$' && ss[-1] != '{') || | |
3597 | isalnum(ss[Ustrlen(s)])) continue; | |
3598 | DEBUG(D_transport) debug_printf("driver %s: \"%s\" option depends on %s\n", | |
3599 | d->name, ol->name, s); | |
3600 | return TRUE; | |
3601 | } | |
3602 | } | |
3603 | ||
3604 | DEBUG(D_transport) debug_printf("driver %s does not depend on %s\n", d->name, s); | |
3605 | return FALSE; | |
3606 | } | |
3607 | ||
3608 | ||
3609 | ||
3610 | ||
3611 | /************************************************* | |
3612 | * Decode an error type for retries * | |
3613 | *************************************************/ | |
3614 | ||
3615 | /* This function is global because it is also called from the main | |
3616 | program when testing retry information. It decodes strings such as "quota_7d" | |
3617 | into numerical error codes. | |
3618 | ||
3619 | Arguments: | |
3620 | pp points to start of text | |
3621 | p points past end of text | |
3622 | basic_errno points to an int to receive the main error number | |
3623 | more_errno points to an int to receive the secondary error data | |
3624 | ||
3625 | Returns: NULL if decoded correctly; else points to error text | |
3626 | */ | |
3627 | ||
3628 | uschar * | |
3629 | readconf_retry_error(uschar *pp, uschar *p, int *basic_errno, int *more_errno) | |
3630 | { | |
3631 | int len; | |
3632 | uschar *q = pp; | |
3633 | while (q < p && *q != '_') q++; | |
3634 | len = q - pp; | |
3635 | ||
3636 | if (len == 5 && strncmpic(pp, US"quota", len) == 0) | |
3637 | { | |
3638 | *basic_errno = ERRNO_EXIMQUOTA; | |
3639 | if (q != p && (*more_errno = readconf_readtime(q+1, *p, FALSE)) < 0) | |
3640 | return US"bad time value"; | |
3641 | } | |
3642 | ||
3643 | else if (len == 7 && strncmpic(pp, US"refused", len) == 0) | |
3644 | { | |
3645 | *basic_errno = ECONNREFUSED; | |
3646 | if (q != p) | |
3647 | { | |
3648 | if (strncmpic(q+1, US"MX", p-q-1) == 0) *more_errno = 'M'; | |
3649 | else if (strncmpic(q+1, US"A", p-q-1) == 0) *more_errno = 'A'; | |
3650 | else return US"A or MX expected after \"refused\""; | |
3651 | } | |
3652 | } | |
3653 | ||
3654 | else if (len == 7 && strncmpic(pp, US"timeout", len) == 0) | |
3655 | { | |
3656 | *basic_errno = ETIMEDOUT; | |
3657 | if (q != p) | |
3658 | { | |
3659 | int i; | |
3660 | int xlen = p - q - 1; | |
3661 | uschar *x = q + 1; | |
3662 | ||
3663 | static uschar *extras[] = | |
3664 | { US"A", US"MX", US"connect", US"connect_A", US"connect_MX" }; | |
3665 | static int values[] = | |
3666 | { 'A', 'M', RTEF_CTOUT, RTEF_CTOUT|'A', RTEF_CTOUT|'M' }; | |
3667 | ||
3668 | for (i = 0; i < sizeof(extras)/sizeof(uschar *); i++) | |
3669 | { | |
3670 | if (strncmpic(x, extras[i], xlen) == 0) | |
3671 | { | |
3672 | *more_errno = values[i]; | |
3673 | break; | |
3674 | } | |
3675 | } | |
3676 | ||
3677 | if (i >= sizeof(extras)/sizeof(uschar *)) | |
3678 | { | |
3679 | if (strncmpic(x, US"DNS", xlen) == 0) | |
3680 | { | |
3681 | log_write(0, LOG_MAIN|LOG_PANIC, "\"timeout_dns\" is no longer " | |
3682 | "available in retry rules (it has never worked) - treated as " | |
3683 | "\"timeout\""); | |
3684 | } | |
3685 | else return US"\"A\", \"MX\", or \"connect\" expected after \"timeout\""; | |
3686 | } | |
3687 | } | |
3688 | } | |
3689 | ||
e97957bc PH |
3690 | else if (strncmpic(pp, US"mail_4", 6) == 0 || |
3691 | strncmpic(pp, US"rcpt_4", 6) == 0 || | |
3692 | strncmpic(pp, US"data_4", 6) == 0) | |
059ec3d9 PH |
3693 | { |
3694 | BOOL bad = FALSE; | |
3695 | int x = 255; /* means "any 4xx code" */ | |
3696 | if (p != pp + 8) bad = TRUE; else | |
3697 | { | |
3698 | int a = pp[6], b = pp[7]; | |
3699 | if (isdigit(a)) | |
3700 | { | |
3701 | x = (a - '0') * 10; | |
3702 | if (isdigit(b)) x += b - '0'; | |
3703 | else if (b == 'x') x += 100; | |
3704 | else bad = TRUE; | |
3705 | } | |
3706 | else if (a != 'x' || b != 'x') bad = TRUE; | |
3707 | } | |
3708 | ||
e97957bc PH |
3709 | if (bad) |
3710 | return string_sprintf("%.4s_4 must be followed by xx, dx, or dd, where " | |
3711 | "x is literal and d is any digit", pp); | |
059ec3d9 | 3712 | |
e97957bc PH |
3713 | *basic_errno = (*pp == 'm')? ERRNO_MAIL4XX : |
3714 | (*pp == 'r')? ERRNO_RCPT4XX : ERRNO_DATA4XX; | |
059ec3d9 PH |
3715 | *more_errno = x << 8; |
3716 | } | |
3717 | ||
3718 | else if (len == 4 && strncmpic(pp, US"auth", len) == 0 && | |
3719 | strncmpic(q+1, US"failed", p-q-1) == 0) | |
059ec3d9 | 3720 | *basic_errno = ERRNO_AUTHFAIL; |
e97957bc | 3721 | |
48da4259 | 3722 | else if (strncmpic(pp, US"lost_connection", p - pp) == 0) |
e97957bc PH |
3723 | *basic_errno = ERRNO_SMTPCLOSED; |
3724 | ||
48da4259 | 3725 | else if (strncmpic(pp, US"tls_required", p - pp) == 0) |
e97957bc | 3726 | *basic_errno = ERRNO_TLSREQUIRED; |
059ec3d9 PH |
3727 | |
3728 | else if (len != 1 || Ustrncmp(pp, "*", 1) != 0) | |
ef840681 | 3729 | return string_sprintf("unknown or malformed retry error \"%.*s\"", (int) (p-pp), pp); |
059ec3d9 PH |
3730 | |
3731 | return NULL; | |
3732 | } | |
3733 | ||
3734 | ||
3735 | ||
3736 | ||
3737 | /************************************************* | |
3738 | * Read retry information * | |
3739 | *************************************************/ | |
3740 | ||
3741 | /* Each line of retry information contains: | |
3742 | ||
3743 | . A domain name pattern or an address pattern; | |
3744 | ||
3745 | . An error name, possibly with additional data, or *; | |
3746 | ||
3747 | . An optional sequence of retry items, each consisting of an identifying | |
3748 | letter, a cutoff time, and optional parameters. | |
3749 | ||
3750 | All this is decoded and placed into a control block. */ | |
3751 | ||
3752 | ||
3753 | /* Subroutine to read an argument, preceded by a comma and terminated | |
3754 | by comma, semicolon, whitespace, or newline. The types are: 0 = time value, | |
3755 | 1 = fixed point number (returned *1000). | |
3756 | ||
3757 | Arguments: | |
3758 | paddr pointer to pointer to current character; updated | |
3759 | type 0 => read a time; 1 => read a fixed point number | |
3760 | ||
3761 | Returns: time in seconds or fixed point number * 1000 | |
3762 | */ | |
3763 | ||
3764 | static int | |
3765 | retry_arg(uschar **paddr, int type) | |
3766 | { | |
3767 | uschar *p = *paddr; | |
3768 | uschar *pp; | |
3769 | ||
3770 | if (*p++ != ',') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma expected"); | |
3771 | ||
3772 | while (isspace(*p)) p++; | |
3773 | pp = p; | |
3774 | while (isalnum(*p) || (type == 1 && *p == '.')) p++; | |
3775 | ||
3776 | if (*p != 0 && !isspace(*p) && *p != ',' && *p != ';') | |
3777 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "comma or semicolon expected"); | |
3778 | ||
3779 | *paddr = p; | |
3780 | switch (type) | |
3781 | { | |
3782 | case 0: | |
3783 | return readconf_readtime(pp, *p, FALSE); | |
3784 | case 1: | |
3785 | return readconf_readfixed(pp, *p); | |
3786 | } | |
3787 | return 0; /* Keep picky compilers happy */ | |
3788 | } | |
3789 | ||
3790 | /* The function proper */ | |
3791 | ||
3792 | void | |
3793 | readconf_retries(void) | |
3794 | { | |
3795 | retry_config **chain = &retries; | |
3796 | retry_config *next; | |
3797 | uschar *p; | |
3798 | ||
3799 | while ((p = get_config_line()) != NULL) | |
3800 | { | |
3801 | retry_rule **rchain; | |
3802 | uschar *pp, *error; | |
3803 | ||
3804 | next = store_get(sizeof(retry_config)); | |
3805 | next->next = NULL; | |
3806 | *chain = next; | |
3807 | chain = &(next->next); | |
3808 | next->basic_errno = next->more_errno = 0; | |
3809 | next->senders = NULL; | |
3810 | next->rules = NULL; | |
3811 | rchain = &(next->rules); | |
3812 | ||
3813 | next->pattern = string_dequote(&p); | |
3814 | while (isspace(*p)) p++; | |
3815 | pp = p; | |
3816 | while (mac_isgraph(*p)) p++; | |
3817 | if (p - pp <= 0) log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3818 | "missing error type"); | |
3819 | ||
3820 | /* Test error names for things we understand. */ | |
3821 | ||
3822 | if ((error = readconf_retry_error(pp, p, &(next->basic_errno), | |
3823 | &(next->more_errno))) != NULL) | |
3824 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "%s", error); | |
3825 | ||
3826 | /* There may be an optional address list of senders to be used as another | |
3827 | constraint on the rule. This was added later, so the syntax is a bit of a | |
3828 | fudge. Anything that is not a retry rule starting "F," or "G," is treated as | |
3829 | an address list. */ | |
3830 | ||
3831 | while (isspace(*p)) p++; | |
3832 | if (Ustrncmp(p, "senders", 7) == 0) | |
3833 | { | |
3834 | p += 7; | |
3835 | while (isspace(*p)) p++; | |
3836 | if (*p++ != '=') log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
3837 | "\"=\" expected after \"senders\" in retry rule"); | |
3838 | while (isspace(*p)) p++; | |
3839 | next->senders = string_dequote(&p); | |
3840 | } | |
3841 | ||
3842 | /* Now the retry rules. Keep the maximum timeout encountered. */ | |
3843 | ||
3844 | while (isspace(*p)) p++; | |
3845 | ||
3846 | while (*p != 0) | |
3847 | { | |
3848 | retry_rule *rule = store_get(sizeof(retry_rule)); | |
3849 | *rchain = rule; | |
3850 | rchain = &(rule->next); | |
3851 | rule->next = NULL; | |
3852 | rule->rule = toupper(*p++); | |
3853 | rule->timeout = retry_arg(&p, 0); | |
3854 | if (rule->timeout > retry_maximum_timeout) | |
3855 | retry_maximum_timeout = rule->timeout; | |
3856 | ||
3857 | switch (rule->rule) | |
3858 | { | |
3859 | case 'F': /* Fixed interval */ | |
3860 | rule->p1 = retry_arg(&p, 0); | |
3861 | break; | |
3862 | ||
3863 | case 'G': /* Geometrically increasing intervals */ | |
6af56900 | 3864 | case 'H': /* Ditto, but with randomness */ |
059ec3d9 PH |
3865 | rule->p1 = retry_arg(&p, 0); |
3866 | rule->p2 = retry_arg(&p, 1); | |
3867 | break; | |
3868 | ||
3869 | default: | |
3870 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "unknown retry rule letter"); | |
3871 | break; | |
3872 | } | |
3873 | ||
3874 | if (rule->timeout <= 0 || rule->p1 <= 0 || | |
6af56900 | 3875 | (rule->rule != 'F' && rule->p2 < 1000)) |
059ec3d9 PH |
3876 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, |
3877 | "bad parameters for retry rule"); | |
3878 | ||
3879 | while (isspace(*p)) p++; | |
3880 | if (*p == ';') | |
3881 | { | |
3882 | p++; | |
3883 | while (isspace(*p)) p++; | |
3884 | } | |
3885 | else if (*p != 0) | |
3886 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "semicolon expected"); | |
3887 | } | |
3888 | } | |
3889 | } | |
3890 | ||
3891 | ||
3892 | ||
3893 | /************************************************* | |
3894 | * Initialize authenticators * | |
3895 | *************************************************/ | |
3896 | ||
3897 | /* Read the authenticators section of the configuration file. | |
3898 | ||
3899 | Arguments: none | |
3900 | Returns: nothing | |
3901 | */ | |
3902 | ||
3903 | static void | |
3904 | auths_init(void) | |
3905 | { | |
3906 | auth_instance *au, *bu; | |
3907 | readconf_driver_init(US"authenticator", | |
3908 | (driver_instance **)(&auths), /* chain anchor */ | |
3909 | (driver_info *)auths_available, /* available drivers */ | |
3910 | sizeof(auth_info), /* size of info block */ | |
3911 | &auth_defaults, /* default values for generic options */ | |
3912 | sizeof(auth_instance), /* size of instance block */ | |
3913 | optionlist_auths, /* generic options */ | |
3914 | optionlist_auths_size); | |
3915 | ||
3916 | for (au = auths; au != NULL; au = au->next) | |
3917 | { | |
3918 | if (au->public_name == NULL) | |
3919 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "no public name specified for " | |
3920 | "the %s authenticator", au->name); | |
3921 | for (bu = au->next; bu != NULL; bu = bu->next) | |
3922 | { | |
3923 | if (strcmpic(au->public_name, bu->public_name) == 0) | |
3924 | { | |
3925 | if ((au->client && bu->client) || (au->server && bu->server)) | |
3926 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "two %s authenticators " | |
3927 | "(%s and %s) have the same public name (%s)", | |
3928 | (au->client)? US"client" : US"server", au->name, bu->name, | |
3929 | au->public_name); | |
3930 | } | |
3931 | } | |
3932 | } | |
3933 | } | |
3934 | ||
3935 | ||
3936 | ||
3937 | ||
3938 | /************************************************* | |
3939 | * Read ACL information * | |
3940 | *************************************************/ | |
3941 | ||
3942 | /* If this run of Exim is not doing something that involves receiving a | |
3943 | message, we can just skip over the ACL information. No need to parse it. | |
3944 | ||
3945 | First, we have a function for acl_read() to call back to get the next line. We | |
3946 | need to remember the line we passed, because at the end it will contain the | |
3947 | name of the next ACL. */ | |
3948 | ||
3949 | static uschar *acl_line; | |
3950 | ||
3951 | static uschar * | |
3952 | acl_callback(void) | |
3953 | { | |
3954 | acl_line = get_config_line(); | |
3955 | return acl_line; | |
3956 | } | |
3957 | ||
3958 | ||
3959 | /* Now the main function: | |
3960 | ||
3961 | Arguments: | |
3962 | skip TRUE when this Exim process is doing something that will | |
3963 | not need the ACL data | |
3964 | ||
3965 | Returns: nothing | |
3966 | */ | |
3967 | ||
3968 | static void | |
3969 | readconf_acl(BOOL skip) | |
3970 | { | |
3971 | uschar *p; | |
3972 | ||
3973 | /* Not receiving messages, don't need to parse the ACL data */ | |
3974 | ||
3975 | if (skip) | |
3976 | { | |
3977 | DEBUG(D_acl) debug_printf("skipping ACL configuration - not needed\n"); | |
3978 | while ((p = get_config_line()) != NULL); | |
3979 | return; | |
3980 | } | |
3981 | ||
cf00dad6 PH |
3982 | /* Read each ACL and add it into the tree. Macro (re)definitions are allowed |
3983 | between ACLs. */ | |
059ec3d9 PH |
3984 | |
3985 | acl_line = get_config_line(); | |
3986 | ||
3987 | while(acl_line != NULL) | |
3988 | { | |
3989 | uschar name[64]; | |
3990 | tree_node *node; | |
3991 | uschar *error; | |
3992 | ||
3993 | p = readconf_readname(name, sizeof(name), acl_line); | |
cf00dad6 PH |
3994 | if (isupper(*name) && *p == '=') |
3995 | { | |
3996 | read_macro_assignment(acl_line); | |
3997 | acl_line = get_config_line(); | |
3998 | continue; | |
3999 | } | |
4000 | ||
4001 | if (*p != ':' || name[0] == 0) | |
4002 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "missing or malformed ACL name"); | |
059ec3d9 PH |
4003 | |
4004 | node = store_get(sizeof(tree_node) + Ustrlen(name)); | |
4005 | Ustrcpy(node->name, name); | |
4006 | if (!tree_insertnode(&acl_anchor, node)) | |
4007 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4008 | "there are two ACLs called \"%s\"", name); | |
4009 | ||
4010 | node->data.ptr = acl_read(acl_callback, &error); | |
4011 | ||
4012 | if (node->data.ptr == NULL && error != NULL) | |
4013 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "error in ACL: %s", error); | |
4014 | } | |
4015 | } | |
4016 | ||
4017 | ||
4018 | ||
4019 | /************************************************* | |
4020 | * Read configuration for local_scan() * | |
4021 | *************************************************/ | |
4022 | ||
4023 | /* This function is called after "begin local_scan" is encountered in the | |
4024 | configuration file. If the local_scan() function allows for configuration | |
4025 | options, we can process them. Otherwise, we expire in a panic. | |
4026 | ||
4027 | Arguments: none | |
4028 | Returns: nothing | |
4029 | */ | |
4030 | ||
4031 | static void | |
4032 | local_scan_init(void) | |
4033 | { | |
4034 | #ifndef LOCAL_SCAN_HAS_OPTIONS | |
4035 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, "local_scan() options not supported: " | |
4036 | "(LOCAL_SCAN_HAS_OPTIONS not defined in Local/Makefile)"); | |
4037 | #else | |
4038 | ||
4039 | uschar *p; | |
4040 | while ((p = get_config_line()) != NULL) | |
4041 | { | |
4042 | (void) readconf_handle_option(p, local_scan_options, local_scan_options_count, | |
4043 | NULL, US"local_scan option \"%s\" unknown"); | |
4044 | } | |
4045 | #endif | |
4046 | } | |
4047 | ||
4048 | ||
4049 | ||
4050 | /************************************************* | |
4051 | * Read rest of configuration (after main) * | |
4052 | *************************************************/ | |
4053 | ||
4054 | /* This function reads the rest of the runtime configuration, after the main | |
4055 | configuration. It is called only when actually needed. Each subsequent section | |
4056 | of the configuration starts with a line of the form | |
4057 | ||
4058 | begin name | |
4059 | ||
4060 | where the name is "routers", "transports", etc. A section is terminated by | |
4061 | hitting the next "begin" line, and the next name is left in next_section. | |
4062 | Because it may confuse people as to whether the names are singular or plural, | |
4063 | we add "s" if it's missing. There is always enough room in next_section for | |
4064 | this. This function is basically just a switch. | |
4065 | ||
4066 | Arguments: | |
4067 | skip_acl TRUE if ACL information is not needed | |
4068 | ||
4069 | Returns: nothing | |
4070 | */ | |
4071 | ||
4072 | static uschar *section_list[] = { | |
4073 | US"acls", | |
4074 | US"authenticators", | |
4075 | US"local_scans", | |
4076 | US"retrys", | |
4077 | US"rewrites", | |
4078 | US"routers", | |
4079 | US"transports"}; | |
4080 | ||
4081 | void | |
4082 | readconf_rest(BOOL skip_acl) | |
4083 | { | |
4084 | int had = 0; | |
4085 | ||
4086 | while(next_section[0] != 0) | |
4087 | { | |
4088 | int bit; | |
4089 | int first = 0; | |
4090 | int last = sizeof(section_list) / sizeof(uschar *); | |
4091 | int mid = last/2; | |
4092 | int n = Ustrlen(next_section); | |
4093 | ||
4094 | if (tolower(next_section[n-1]) != 's') Ustrcpy(next_section+n, "s"); | |
4095 | ||
4096 | for (;;) | |
4097 | { | |
4098 | int c = strcmpic(next_section, section_list[mid]); | |
4099 | if (c == 0) break; | |
4100 | if (c > 0) first = mid + 1; else last = mid; | |
4101 | if (first >= last) | |
4102 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4103 | "\"%.*s\" is not a known configuration section name", n, next_section); | |
4104 | mid = (last + first)/2; | |
4105 | } | |
4106 | ||
4107 | bit = 1 << mid; | |
4108 | if (((had ^= bit) & bit) == 0) | |
4109 | log_write(0, LOG_PANIC_DIE|LOG_CONFIG_IN, | |
4110 | "\"%.*s\" section is repeated in the configuration file", n, | |
4111 | next_section); | |
4112 | ||
4113 | switch(mid) | |
4114 | { | |
4115 | case 0: readconf_acl(skip_acl); break; | |
4116 | case 1: auths_init(); break; | |
4117 | case 2: local_scan_init(); break; | |
4118 | case 3: readconf_retries(); break; | |
4119 | case 4: readconf_rewrites(); break; | |
4120 | case 5: route_init(); break; | |
4121 | case 6: transport_init(); break; | |
4122 | } | |
4123 | } | |
4124 | ||
f1e894f3 | 4125 | (void)fclose(config_file); |
059ec3d9 PH |
4126 | } |
4127 | ||
4128 | /* End of readconf.c */ |