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3c0ef626 | 1 | /* |
2 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
3 | * All rights reserved | |
4 | * | |
5 | * As far as I am concerned, the code I have written for this software | |
6 | * can be used freely for any purpose. Any derived versions of this | |
7 | * software must be clearly marked as such, and if the derived work is | |
8 | * incompatible with the protocol description in the RFC file, it must be | |
9 | * called by a name other than "ssh" or "Secure Shell". | |
10 | */ | |
11 | ||
12 | #include "includes.h" | |
1c14df9e | 13 | RCSID("$OpenBSD: servconf.c,v 1.116 2003/02/21 09:05:53 markus Exp $"); |
3c0ef626 | 14 | |
b9a54c29 | 15 | #if defined(KRB4) |
16 | #include <krb.h> | |
17 | #endif | |
18 | #if defined(KRB5) | |
19 | #ifdef HEIMDAL | |
b9a54c29 | 20 | #else |
21 | /* Bodge - but then, so is using the kerberos IV KEYFILE to get a Kerberos V | |
22 | * keytab */ | |
23 | #define KEYFILE "/etc/krb5.keytab" | |
24 | #endif | |
3c0ef626 | 25 | #endif |
26 | #ifdef AFS | |
27 | #include <kafs.h> | |
28 | #endif | |
29 | ||
30 | #include "ssh.h" | |
31 | #include "log.h" | |
32 | #include "servconf.h" | |
33 | #include "xmalloc.h" | |
34 | #include "compat.h" | |
35 | #include "pathnames.h" | |
36 | #include "tildexpand.h" | |
37 | #include "misc.h" | |
38 | #include "cipher.h" | |
39 | #include "kex.h" | |
40 | #include "mac.h" | |
41 | ||
42 | static void add_listen_addr(ServerOptions *, char *, u_short); | |
43 | static void add_one_listen_addr(ServerOptions *, char *, u_short); | |
44 | ||
45 | /* AF_UNSPEC or AF_INET or AF_INET6 */ | |
46 | extern int IPv4or6; | |
2980ea68 | 47 | /* Use of privilege separation or not */ |
48 | extern int use_privsep; | |
3c0ef626 | 49 | |
50 | /* Initializes the server options to their default values. */ | |
51 | ||
52 | void | |
53 | initialize_server_options(ServerOptions *options) | |
54 | { | |
55 | memset(options, 0, sizeof(*options)); | |
56 | ||
57 | /* Portable-specific options */ | |
58 | options->pam_authentication_via_kbd_int = -1; | |
59 | ||
60 | /* Standard Options */ | |
61 | options->num_ports = 0; | |
62 | options->ports_from_cmdline = 0; | |
63 | options->listen_addrs = NULL; | |
64 | options->num_host_key_files = 0; | |
65 | options->pid_file = NULL; | |
66 | options->server_key_bits = -1; | |
67 | options->login_grace_time = -1; | |
68 | options->key_regeneration_time = -1; | |
69 | options->permit_root_login = PERMIT_NOT_SET; | |
70 | options->ignore_rhosts = -1; | |
71 | options->ignore_user_known_hosts = -1; | |
72 | options->print_motd = -1; | |
73 | options->print_lastlog = -1; | |
74 | options->x11_forwarding = -1; | |
75 | options->x11_display_offset = -1; | |
e9a17296 | 76 | options->x11_use_localhost = -1; |
3c0ef626 | 77 | options->xauth_location = NULL; |
78 | options->strict_modes = -1; | |
79 | options->keepalives = -1; | |
e9a17296 | 80 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
81 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
3c0ef626 | 82 | options->rhosts_authentication = -1; |
83 | options->rhosts_rsa_authentication = -1; | |
84 | options->hostbased_authentication = -1; | |
85 | options->hostbased_uses_name_from_packet_only = -1; | |
86 | options->rsa_authentication = -1; | |
87 | options->pubkey_authentication = -1; | |
b9a54c29 | 88 | #ifdef GSSAPI |
89 | options->gss_authentication=-1; | |
90 | options->gss_keyex=-1; | |
91 | options->gss_use_session_ccache = -1; | |
92 | options->gss_cleanup_creds = -1; | |
93 | #endif | |
3c0ef626 | 94 | #if defined(KRB4) || defined(KRB5) |
95 | options->kerberos_authentication = -1; | |
96 | options->kerberos_or_local_passwd = -1; | |
97 | options->kerberos_ticket_cleanup = -1; | |
98 | #endif | |
99 | #if defined(AFS) || defined(KRB5) | |
100 | options->kerberos_tgt_passing = -1; | |
101 | #endif | |
102 | #ifdef AFS | |
103 | options->afs_token_passing = -1; | |
88928908 | 104 | #endif |
105 | #ifdef SESSION_HOOKS | |
106 | options->session_hooks_allow = -1; | |
107 | options->session_hooks_startup_cmd = NULL; | |
108 | options->session_hooks_shutdown_cmd = NULL; | |
3c0ef626 | 109 | #endif |
110 | options->password_authentication = -1; | |
111 | options->kbd_interactive_authentication = -1; | |
112 | options->challenge_response_authentication = -1; | |
113 | options->permit_empty_passwd = -1; | |
e54b3d7c | 114 | options->permit_user_env = -1; |
3c0ef626 | 115 | options->use_login = -1; |
ff2d7a98 | 116 | options->compression = -1; |
3c0ef626 | 117 | options->allow_tcp_forwarding = -1; |
118 | options->num_allow_users = 0; | |
119 | options->num_deny_users = 0; | |
120 | options->num_allow_groups = 0; | |
121 | options->num_deny_groups = 0; | |
122 | options->ciphers = NULL; | |
123 | options->macs = NULL; | |
124 | options->protocol = SSH_PROTO_UNKNOWN; | |
125 | options->gateway_ports = -1; | |
126 | options->num_subsystems = 0; | |
127 | options->max_startups_begin = -1; | |
128 | options->max_startups_rate = -1; | |
129 | options->max_startups = -1; | |
130 | options->banner = NULL; | |
e9a17296 | 131 | options->verify_reverse_mapping = -1; |
3c0ef626 | 132 | options->client_alive_interval = -1; |
133 | options->client_alive_count_max = -1; | |
134 | options->authorized_keys_file = NULL; | |
135 | options->authorized_keys_file2 = NULL; | |
2980ea68 | 136 | |
137 | /* Needs to be accessable in many places */ | |
138 | use_privsep = -1; | |
3c0ef626 | 139 | } |
140 | ||
141 | void | |
142 | fill_default_server_options(ServerOptions *options) | |
143 | { | |
144 | /* Portable-specific options */ | |
145 | if (options->pam_authentication_via_kbd_int == -1) | |
146 | options->pam_authentication_via_kbd_int = 0; | |
147 | ||
148 | /* Standard Options */ | |
149 | if (options->protocol == SSH_PROTO_UNKNOWN) | |
150 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
151 | if (options->num_host_key_files == 0) { | |
152 | /* fill default hostkeys for protocols */ | |
153 | if (options->protocol & SSH_PROTO_1) | |
e9a17296 | 154 | options->host_key_files[options->num_host_key_files++] = |
155 | _PATH_HOST_KEY_FILE; | |
156 | if (options->protocol & SSH_PROTO_2) { | |
157 | options->host_key_files[options->num_host_key_files++] = | |
158 | _PATH_HOST_RSA_KEY_FILE; | |
159 | options->host_key_files[options->num_host_key_files++] = | |
160 | _PATH_HOST_DSA_KEY_FILE; | |
161 | } | |
3c0ef626 | 162 | } |
163 | if (options->num_ports == 0) | |
164 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
165 | if (options->listen_addrs == NULL) | |
166 | add_listen_addr(options, NULL, 0); | |
167 | if (options->pid_file == NULL) | |
168 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; | |
169 | if (options->server_key_bits == -1) | |
170 | options->server_key_bits = 768; | |
171 | if (options->login_grace_time == -1) | |
e54b3d7c | 172 | options->login_grace_time = 120; |
3c0ef626 | 173 | if (options->key_regeneration_time == -1) |
174 | options->key_regeneration_time = 3600; | |
175 | if (options->permit_root_login == PERMIT_NOT_SET) | |
176 | options->permit_root_login = PERMIT_YES; | |
177 | if (options->ignore_rhosts == -1) | |
178 | options->ignore_rhosts = 1; | |
179 | if (options->ignore_user_known_hosts == -1) | |
180 | options->ignore_user_known_hosts = 0; | |
181 | if (options->print_motd == -1) | |
182 | options->print_motd = 1; | |
183 | if (options->print_lastlog == -1) | |
184 | options->print_lastlog = 1; | |
185 | if (options->x11_forwarding == -1) | |
186 | options->x11_forwarding = 0; | |
187 | if (options->x11_display_offset == -1) | |
188 | options->x11_display_offset = 10; | |
e9a17296 | 189 | if (options->x11_use_localhost == -1) |
190 | options->x11_use_localhost = 1; | |
3c0ef626 | 191 | if (options->xauth_location == NULL) |
192 | options->xauth_location = _PATH_XAUTH; | |
3c0ef626 | 193 | if (options->strict_modes == -1) |
194 | options->strict_modes = 1; | |
195 | if (options->keepalives == -1) | |
196 | options->keepalives = 1; | |
e9a17296 | 197 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
3c0ef626 | 198 | options->log_facility = SYSLOG_FACILITY_AUTH; |
e9a17296 | 199 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
3c0ef626 | 200 | options->log_level = SYSLOG_LEVEL_INFO; |
201 | if (options->rhosts_authentication == -1) | |
202 | options->rhosts_authentication = 0; | |
203 | if (options->rhosts_rsa_authentication == -1) | |
204 | options->rhosts_rsa_authentication = 0; | |
205 | if (options->hostbased_authentication == -1) | |
206 | options->hostbased_authentication = 0; | |
207 | if (options->hostbased_uses_name_from_packet_only == -1) | |
208 | options->hostbased_uses_name_from_packet_only = 0; | |
209 | if (options->rsa_authentication == -1) | |
210 | options->rsa_authentication = 1; | |
211 | if (options->pubkey_authentication == -1) | |
212 | options->pubkey_authentication = 1; | |
b9a54c29 | 213 | #ifdef GSSAPI |
214 | if (options->gss_authentication == -1) | |
215 | options->gss_authentication = 1; | |
216 | if (options->gss_keyex == -1) | |
217 | options->gss_keyex =1; | |
218 | if (options->gss_use_session_ccache == -1) | |
219 | options->gss_use_session_ccache = 1; | |
220 | if (options->gss_cleanup_creds == -1) | |
221 | options->gss_cleanup_creds = 1; | |
222 | #endif | |
3c0ef626 | 223 | #if defined(KRB4) || defined(KRB5) |
224 | if (options->kerberos_authentication == -1) | |
2980ea68 | 225 | options->kerberos_authentication = 0; |
3c0ef626 | 226 | if (options->kerberos_or_local_passwd == -1) |
227 | options->kerberos_or_local_passwd = 1; | |
228 | if (options->kerberos_ticket_cleanup == -1) | |
229 | options->kerberos_ticket_cleanup = 1; | |
230 | #endif | |
231 | #if defined(AFS) || defined(KRB5) | |
232 | if (options->kerberos_tgt_passing == -1) | |
233 | options->kerberos_tgt_passing = 0; | |
234 | #endif | |
e9a17296 | 235 | #ifdef AFS |
3c0ef626 | 236 | if (options->afs_token_passing == -1) |
2980ea68 | 237 | options->afs_token_passing = 0; |
88928908 | 238 | #endif |
239 | #ifdef SESSION_HOOKS | |
240 | if (options->session_hooks_allow == -1) | |
241 | { | |
242 | options->session_hooks_allow = 0; | |
243 | options->session_hooks_startup_cmd = NULL; | |
244 | options->session_hooks_shutdown_cmd = NULL; | |
245 | } | |
3c0ef626 | 246 | #endif |
247 | if (options->password_authentication == -1) | |
248 | options->password_authentication = 1; | |
249 | if (options->kbd_interactive_authentication == -1) | |
250 | options->kbd_interactive_authentication = 0; | |
251 | if (options->challenge_response_authentication == -1) | |
252 | options->challenge_response_authentication = 1; | |
253 | if (options->permit_empty_passwd == -1) | |
254 | options->permit_empty_passwd = 0; | |
e54b3d7c | 255 | if (options->permit_user_env == -1) |
256 | options->permit_user_env = 0; | |
3c0ef626 | 257 | if (options->use_login == -1) |
258 | options->use_login = 0; | |
ff2d7a98 | 259 | if (options->compression == -1) |
260 | options->compression = 1; | |
3c0ef626 | 261 | if (options->allow_tcp_forwarding == -1) |
262 | options->allow_tcp_forwarding = 1; | |
263 | if (options->gateway_ports == -1) | |
264 | options->gateway_ports = 0; | |
265 | if (options->max_startups == -1) | |
266 | options->max_startups = 10; | |
267 | if (options->max_startups_rate == -1) | |
268 | options->max_startups_rate = 100; /* 100% */ | |
269 | if (options->max_startups_begin == -1) | |
270 | options->max_startups_begin = options->max_startups; | |
e9a17296 | 271 | if (options->verify_reverse_mapping == -1) |
272 | options->verify_reverse_mapping = 0; | |
3c0ef626 | 273 | if (options->client_alive_interval == -1) |
e9a17296 | 274 | options->client_alive_interval = 0; |
3c0ef626 | 275 | if (options->client_alive_count_max == -1) |
276 | options->client_alive_count_max = 3; | |
277 | if (options->authorized_keys_file2 == NULL) { | |
278 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
279 | if (options->authorized_keys_file != NULL) | |
280 | options->authorized_keys_file2 = options->authorized_keys_file; | |
281 | else | |
282 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
283 | } | |
284 | if (options->authorized_keys_file == NULL) | |
285 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
2980ea68 | 286 | |
ff2d7a98 | 287 | /* Turn privilege separation on by default */ |
2980ea68 | 288 | if (use_privsep == -1) |
ff2d7a98 | 289 | use_privsep = 1; |
290 | ||
e54b3d7c | 291 | #ifndef HAVE_MMAP |
ff2d7a98 | 292 | if (use_privsep && options->compression == 1) { |
293 | error("This platform does not support both privilege " | |
294 | "separation and compression"); | |
295 | error("Compression disabled"); | |
296 | options->compression = 0; | |
297 | } | |
298 | #endif | |
299 | ||
3c0ef626 | 300 | } |
301 | ||
302 | /* Keyword tokens. */ | |
303 | typedef enum { | |
304 | sBadOption, /* == unknown option */ | |
305 | /* Portable-specific options */ | |
306 | sPAMAuthenticationViaKbdInt, | |
307 | /* Standard Options */ | |
308 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
309 | sPermitRootLogin, sLogFacility, sLogLevel, | |
310 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
b9a54c29 | 311 | #ifdef GSSAPI |
312 | sGssAuthentication, sGssKeyEx, sGssUseSessionCredCache, sGssCleanupCreds, | |
313 | #endif | |
3c0ef626 | 314 | #if defined(KRB4) || defined(KRB5) |
315 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, | |
316 | #endif | |
317 | #if defined(AFS) || defined(KRB5) | |
318 | sKerberosTgtPassing, | |
319 | #endif | |
320 | #ifdef AFS | |
321 | sAFSTokenPassing, | |
88928908 | 322 | #endif |
323 | #ifdef SESSION_HOOKS | |
324 | sAllowSessionHooks, sSessionHookStartupCmd, sSessionHookShutdownCmd, | |
3c0ef626 | 325 | #endif |
326 | sChallengeResponseAuthentication, | |
327 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, | |
328 | sPrintMotd, sPrintLastLog, sIgnoreRhosts, | |
e9a17296 | 329 | sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, |
3c0ef626 | 330 | sStrictModes, sEmptyPasswd, sKeepAlives, |
e54b3d7c | 331 | sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, |
3c0ef626 | 332 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
333 | sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, | |
334 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups, | |
e9a17296 | 335 | sBanner, sVerifyReverseMapping, sHostbasedAuthentication, |
336 | sHostbasedUsesNameFromPacketOnly, sClientAliveInterval, | |
3c0ef626 | 337 | sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2, |
2980ea68 | 338 | sUsePrivilegeSeparation, |
e9a17296 | 339 | sDeprecated |
3c0ef626 | 340 | } ServerOpCodes; |
341 | ||
342 | /* Textual representation of the tokens. */ | |
343 | static struct { | |
344 | const char *name; | |
345 | ServerOpCodes opcode; | |
346 | } keywords[] = { | |
347 | /* Portable-specific options */ | |
348 | { "PAMAuthenticationViaKbdInt", sPAMAuthenticationViaKbdInt }, | |
349 | /* Standard Options */ | |
350 | { "port", sPort }, | |
351 | { "hostkey", sHostKeyFile }, | |
352 | { "hostdsakey", sHostKeyFile }, /* alias */ | |
353 | { "pidfile", sPidFile }, | |
354 | { "serverkeybits", sServerKeyBits }, | |
355 | { "logingracetime", sLoginGraceTime }, | |
356 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
357 | { "permitrootlogin", sPermitRootLogin }, | |
358 | { "syslogfacility", sLogFacility }, | |
359 | { "loglevel", sLogLevel }, | |
360 | { "rhostsauthentication", sRhostsAuthentication }, | |
361 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
362 | { "hostbasedauthentication", sHostbasedAuthentication }, | |
363 | { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly }, | |
364 | { "rsaauthentication", sRSAAuthentication }, | |
365 | { "pubkeyauthentication", sPubkeyAuthentication }, | |
366 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
b9a54c29 | 367 | #ifdef GSSAPI |
368 | { "gssapiauthentication", sGssAuthentication }, | |
369 | { "gssapikeyexchange", sGssKeyEx }, | |
370 | { "gssusesessionccache", sGssUseSessionCredCache }, | |
371 | { "gssapiusesessioncredcache", sGssUseSessionCredCache }, | |
372 | { "gssapicleanupcreds", sGssCleanupCreds }, | |
373 | #endif | |
3c0ef626 | 374 | #if defined(KRB4) || defined(KRB5) |
375 | { "kerberosauthentication", sKerberosAuthentication }, | |
376 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
377 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
378 | #endif | |
379 | #if defined(AFS) || defined(KRB5) | |
380 | { "kerberostgtpassing", sKerberosTgtPassing }, | |
381 | #endif | |
382 | #ifdef AFS | |
383 | { "afstokenpassing", sAFSTokenPassing }, | |
384 | #endif | |
88928908 | 385 | #ifdef SESSION_HOOKS |
386 | { "allowsessionhooks", sAllowSessionHooks }, | |
387 | { "sessionhookstartupcmd", sSessionHookStartupCmd }, | |
388 | { "sessionhookshutdowncmd", sSessionHookShutdownCmd }, | |
389 | #endif | |
3c0ef626 | 390 | { "passwordauthentication", sPasswordAuthentication }, |
391 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, | |
392 | { "challengeresponseauthentication", sChallengeResponseAuthentication }, | |
393 | { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */ | |
394 | { "checkmail", sDeprecated }, | |
395 | { "listenaddress", sListenAddress }, | |
396 | { "printmotd", sPrintMotd }, | |
397 | { "printlastlog", sPrintLastLog }, | |
398 | { "ignorerhosts", sIgnoreRhosts }, | |
399 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
400 | { "x11forwarding", sX11Forwarding }, | |
401 | { "x11displayoffset", sX11DisplayOffset }, | |
e9a17296 | 402 | { "x11uselocalhost", sX11UseLocalhost }, |
3c0ef626 | 403 | { "xauthlocation", sXAuthLocation }, |
404 | { "strictmodes", sStrictModes }, | |
405 | { "permitemptypasswords", sEmptyPasswd }, | |
e54b3d7c | 406 | { "permituserenvironment", sPermitUserEnvironment }, |
3c0ef626 | 407 | { "uselogin", sUseLogin }, |
ff2d7a98 | 408 | { "compression", sCompression }, |
3c0ef626 | 409 | { "keepalive", sKeepAlives }, |
410 | { "allowtcpforwarding", sAllowTcpForwarding }, | |
411 | { "allowusers", sAllowUsers }, | |
412 | { "denyusers", sDenyUsers }, | |
413 | { "allowgroups", sAllowGroups }, | |
414 | { "denygroups", sDenyGroups }, | |
415 | { "ciphers", sCiphers }, | |
416 | { "macs", sMacs }, | |
417 | { "protocol", sProtocol }, | |
418 | { "gatewayports", sGatewayPorts }, | |
419 | { "subsystem", sSubsystem }, | |
420 | { "maxstartups", sMaxStartups }, | |
421 | { "banner", sBanner }, | |
e9a17296 | 422 | { "verifyreversemapping", sVerifyReverseMapping }, |
423 | { "reversemappingcheck", sVerifyReverseMapping }, | |
3c0ef626 | 424 | { "clientaliveinterval", sClientAliveInterval }, |
425 | { "clientalivecountmax", sClientAliveCountMax }, | |
426 | { "authorizedkeysfile", sAuthorizedKeysFile }, | |
427 | { "authorizedkeysfile2", sAuthorizedKeysFile2 }, | |
2980ea68 | 428 | { "useprivilegeseparation", sUsePrivilegeSeparation}, |
e9a17296 | 429 | { NULL, sBadOption } |
3c0ef626 | 430 | }; |
431 | ||
432 | /* | |
433 | * Returns the number of the token pointed to by cp or sBadOption. | |
434 | */ | |
435 | ||
436 | static ServerOpCodes | |
437 | parse_token(const char *cp, const char *filename, | |
438 | int linenum) | |
439 | { | |
440 | u_int i; | |
441 | ||
442 | for (i = 0; keywords[i].name; i++) | |
443 | if (strcasecmp(cp, keywords[i].name) == 0) | |
444 | return keywords[i].opcode; | |
445 | ||
446 | error("%s: line %d: Bad configuration option: %s", | |
447 | filename, linenum, cp); | |
448 | return sBadOption; | |
449 | } | |
450 | ||
451 | static void | |
452 | add_listen_addr(ServerOptions *options, char *addr, u_short port) | |
453 | { | |
454 | int i; | |
455 | ||
456 | if (options->num_ports == 0) | |
457 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
458 | if (port == 0) | |
459 | for (i = 0; i < options->num_ports; i++) | |
460 | add_one_listen_addr(options, addr, options->ports[i]); | |
461 | else | |
462 | add_one_listen_addr(options, addr, port); | |
463 | } | |
464 | ||
465 | static void | |
466 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) | |
467 | { | |
468 | struct addrinfo hints, *ai, *aitop; | |
469 | char strport[NI_MAXSERV]; | |
470 | int gaierr; | |
471 | ||
472 | memset(&hints, 0, sizeof(hints)); | |
473 | hints.ai_family = IPv4or6; | |
474 | hints.ai_socktype = SOCK_STREAM; | |
475 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
ff2d7a98 | 476 | snprintf(strport, sizeof strport, "%u", port); |
3c0ef626 | 477 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
478 | fatal("bad addr or host: %s (%s)", | |
479 | addr ? addr : "<NULL>", | |
480 | gai_strerror(gaierr)); | |
481 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
482 | ; | |
483 | ai->ai_next = options->listen_addrs; | |
484 | options->listen_addrs = aitop; | |
485 | } | |
486 | ||
e9a17296 | 487 | int |
488 | process_server_config_line(ServerOptions *options, char *line, | |
489 | const char *filename, int linenum) | |
3c0ef626 | 490 | { |
3c0ef626 | 491 | char *cp, **charptr, *arg, *p; |
ff2d7a98 | 492 | int *intptr, value, i, n; |
3c0ef626 | 493 | ServerOpCodes opcode; |
3c0ef626 | 494 | |
e9a17296 | 495 | cp = line; |
496 | arg = strdelim(&cp); | |
497 | /* Ignore leading whitespace */ | |
498 | if (*arg == '\0') | |
3c0ef626 | 499 | arg = strdelim(&cp); |
e9a17296 | 500 | if (!arg || !*arg || *arg == '#') |
501 | return 0; | |
502 | intptr = NULL; | |
503 | charptr = NULL; | |
504 | opcode = parse_token(arg, filename, linenum); | |
505 | switch (opcode) { | |
506 | /* Portable-specific options */ | |
507 | case sPAMAuthenticationViaKbdInt: | |
508 | intptr = &options->pam_authentication_via_kbd_int; | |
509 | goto parse_flag; | |
3c0ef626 | 510 | |
e9a17296 | 511 | /* Standard Options */ |
512 | case sBadOption: | |
513 | return -1; | |
514 | case sPort: | |
515 | /* ignore ports from configfile if cmdline specifies ports */ | |
516 | if (options->ports_from_cmdline) | |
517 | return 0; | |
518 | if (options->listen_addrs != NULL) | |
519 | fatal("%s line %d: ports must be specified before " | |
520 | "ListenAddress.", filename, linenum); | |
521 | if (options->num_ports >= MAX_PORTS) | |
522 | fatal("%s line %d: too many ports.", | |
523 | filename, linenum); | |
524 | arg = strdelim(&cp); | |
525 | if (!arg || *arg == '\0') | |
526 | fatal("%s line %d: missing port number.", | |
527 | filename, linenum); | |
528 | options->ports[options->num_ports++] = a2port(arg); | |
529 | if (options->ports[options->num_ports-1] == 0) | |
530 | fatal("%s line %d: Badly formatted port number.", | |
531 | filename, linenum); | |
532 | break; | |
533 | ||
534 | case sServerKeyBits: | |
535 | intptr = &options->server_key_bits; | |
3c0ef626 | 536 | parse_int: |
e9a17296 | 537 | arg = strdelim(&cp); |
538 | if (!arg || *arg == '\0') | |
539 | fatal("%s line %d: missing integer value.", | |
540 | filename, linenum); | |
541 | value = atoi(arg); | |
542 | if (*intptr == -1) | |
543 | *intptr = value; | |
544 | break; | |
545 | ||
546 | case sLoginGraceTime: | |
547 | intptr = &options->login_grace_time; | |
3c0ef626 | 548 | parse_time: |
e9a17296 | 549 | arg = strdelim(&cp); |
550 | if (!arg || *arg == '\0') | |
551 | fatal("%s line %d: missing time value.", | |
552 | filename, linenum); | |
553 | if ((value = convtime(arg)) == -1) | |
554 | fatal("%s line %d: invalid time value.", | |
555 | filename, linenum); | |
556 | if (*intptr == -1) | |
557 | *intptr = value; | |
558 | break; | |
559 | ||
560 | case sKeyRegenerationTime: | |
561 | intptr = &options->key_regeneration_time; | |
562 | goto parse_time; | |
563 | ||
564 | case sListenAddress: | |
565 | arg = strdelim(&cp); | |
566 | if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0) | |
567 | fatal("%s line %d: missing inet addr.", | |
568 | filename, linenum); | |
569 | if (*arg == '[') { | |
570 | if ((p = strchr(arg, ']')) == NULL) | |
571 | fatal("%s line %d: bad ipv6 inet addr usage.", | |
3c0ef626 | 572 | filename, linenum); |
e9a17296 | 573 | arg++; |
574 | memmove(p, p+1, strlen(p+1)+1); | |
575 | } else if (((p = strchr(arg, ':')) == NULL) || | |
576 | (strchr(p+1, ':') != NULL)) { | |
577 | add_listen_addr(options, arg, 0); | |
3c0ef626 | 578 | break; |
e9a17296 | 579 | } |
580 | if (*p == ':') { | |
581 | u_short port; | |
3c0ef626 | 582 | |
e9a17296 | 583 | p++; |
584 | if (*p == '\0') | |
585 | fatal("%s line %d: bad inet addr:port usage.", | |
3c0ef626 | 586 | filename, linenum); |
e9a17296 | 587 | else { |
588 | *(p-1) = '\0'; | |
589 | if ((port = a2port(p)) == 0) | |
590 | fatal("%s line %d: bad port number.", | |
3c0ef626 | 591 | filename, linenum); |
e9a17296 | 592 | add_listen_addr(options, arg, port); |
3c0ef626 | 593 | } |
e9a17296 | 594 | } else if (*p == '\0') |
595 | add_listen_addr(options, arg, 0); | |
596 | else | |
597 | fatal("%s line %d: bad inet addr usage.", | |
598 | filename, linenum); | |
599 | break; | |
600 | ||
601 | case sHostKeyFile: | |
602 | intptr = &options->num_host_key_files; | |
603 | if (*intptr >= MAX_HOSTKEYS) | |
604 | fatal("%s line %d: too many host keys specified (max %d).", | |
605 | filename, linenum, MAX_HOSTKEYS); | |
606 | charptr = &options->host_key_files[*intptr]; | |
3c0ef626 | 607 | parse_filename: |
e9a17296 | 608 | arg = strdelim(&cp); |
609 | if (!arg || *arg == '\0') | |
610 | fatal("%s line %d: missing file name.", | |
611 | filename, linenum); | |
612 | if (*charptr == NULL) { | |
613 | *charptr = tilde_expand_filename(arg, getuid()); | |
614 | /* increase optional counter */ | |
615 | if (intptr != NULL) | |
616 | *intptr = *intptr + 1; | |
617 | } | |
618 | break; | |
3c0ef626 | 619 | |
e9a17296 | 620 | case sPidFile: |
621 | charptr = &options->pid_file; | |
622 | goto parse_filename; | |
3c0ef626 | 623 | |
e9a17296 | 624 | case sPermitRootLogin: |
625 | intptr = &options->permit_root_login; | |
626 | arg = strdelim(&cp); | |
627 | if (!arg || *arg == '\0') | |
628 | fatal("%s line %d: missing yes/" | |
629 | "without-password/forced-commands-only/no " | |
630 | "argument.", filename, linenum); | |
631 | value = 0; /* silence compiler */ | |
632 | if (strcmp(arg, "without-password") == 0) | |
633 | value = PERMIT_NO_PASSWD; | |
634 | else if (strcmp(arg, "forced-commands-only") == 0) | |
635 | value = PERMIT_FORCED_ONLY; | |
636 | else if (strcmp(arg, "yes") == 0) | |
637 | value = PERMIT_YES; | |
638 | else if (strcmp(arg, "no") == 0) | |
639 | value = PERMIT_NO; | |
640 | else | |
641 | fatal("%s line %d: Bad yes/" | |
642 | "without-password/forced-commands-only/no " | |
643 | "argument: %s", filename, linenum, arg); | |
644 | if (*intptr == -1) | |
645 | *intptr = value; | |
646 | break; | |
647 | ||
648 | case sIgnoreRhosts: | |
649 | intptr = &options->ignore_rhosts; | |
3c0ef626 | 650 | parse_flag: |
e9a17296 | 651 | arg = strdelim(&cp); |
652 | if (!arg || *arg == '\0') | |
653 | fatal("%s line %d: missing yes/no argument.", | |
654 | filename, linenum); | |
655 | value = 0; /* silence compiler */ | |
656 | if (strcmp(arg, "yes") == 0) | |
657 | value = 1; | |
658 | else if (strcmp(arg, "no") == 0) | |
659 | value = 0; | |
660 | else | |
661 | fatal("%s line %d: Bad yes/no argument: %s", | |
662 | filename, linenum, arg); | |
663 | if (*intptr == -1) | |
664 | *intptr = value; | |
665 | break; | |
666 | ||
667 | case sIgnoreUserKnownHosts: | |
668 | intptr = &options->ignore_user_known_hosts; | |
669 | goto parse_flag; | |
670 | ||
671 | case sRhostsAuthentication: | |
672 | intptr = &options->rhosts_authentication; | |
673 | goto parse_flag; | |
674 | ||
675 | case sRhostsRSAAuthentication: | |
676 | intptr = &options->rhosts_rsa_authentication; | |
677 | goto parse_flag; | |
678 | ||
679 | case sHostbasedAuthentication: | |
680 | intptr = &options->hostbased_authentication; | |
681 | goto parse_flag; | |
682 | ||
683 | case sHostbasedUsesNameFromPacketOnly: | |
684 | intptr = &options->hostbased_uses_name_from_packet_only; | |
685 | goto parse_flag; | |
686 | ||
687 | case sRSAAuthentication: | |
688 | intptr = &options->rsa_authentication; | |
689 | goto parse_flag; | |
690 | ||
691 | case sPubkeyAuthentication: | |
692 | intptr = &options->pubkey_authentication; | |
693 | goto parse_flag; | |
b9a54c29 | 694 | #ifdef GSSAPI |
695 | case sGssAuthentication: | |
696 | intptr = &options->gss_authentication; | |
697 | goto parse_flag; | |
698 | case sGssKeyEx: | |
699 | intptr = &options->gss_keyex; | |
700 | goto parse_flag; | |
701 | case sGssUseSessionCredCache: | |
702 | intptr = &options->gss_use_session_ccache; | |
703 | goto parse_flag; | |
704 | case sGssCleanupCreds: | |
705 | intptr = &options->gss_cleanup_creds; | |
706 | goto parse_flag; | |
707 | #endif | |
e9a17296 | 708 | #if defined(KRB4) || defined(KRB5) |
709 | case sKerberosAuthentication: | |
710 | intptr = &options->kerberos_authentication; | |
711 | goto parse_flag; | |
3c0ef626 | 712 | |
e9a17296 | 713 | case sKerberosOrLocalPasswd: |
714 | intptr = &options->kerberos_or_local_passwd; | |
715 | goto parse_flag; | |
3c0ef626 | 716 | |
e9a17296 | 717 | case sKerberosTicketCleanup: |
718 | intptr = &options->kerberos_ticket_cleanup; | |
719 | goto parse_flag; | |
720 | #endif | |
721 | #if defined(AFS) || defined(KRB5) | |
722 | case sKerberosTgtPassing: | |
723 | intptr = &options->kerberos_tgt_passing; | |
724 | goto parse_flag; | |
725 | #endif | |
726 | #ifdef AFS | |
727 | case sAFSTokenPassing: | |
728 | intptr = &options->afs_token_passing; | |
729 | goto parse_flag; | |
730 | #endif | |
88928908 | 731 | #ifdef SESSION_HOOKS |
732 | case sAllowSessionHooks: | |
733 | intptr = &options->session_hooks_allow; | |
734 | goto parse_flag; | |
735 | case sSessionHookStartupCmd: | |
736 | case sSessionHookShutdownCmd: | |
737 | arg = strdelim(&cp); | |
738 | if (!arg || *arg == '\0') | |
739 | fatal("%s line %d: empty session hook command", | |
740 | filename, linenum); | |
741 | if (opcode==sSessionHookStartupCmd) | |
742 | options->session_hooks_startup_cmd = strdup(arg); | |
743 | else | |
744 | options->session_hooks_shutdown_cmd = strdup(arg); | |
745 | break; | |
746 | #endif | |
e9a17296 | 747 | case sPasswordAuthentication: |
748 | intptr = &options->password_authentication; | |
749 | goto parse_flag; | |
3c0ef626 | 750 | |
e9a17296 | 751 | case sKbdInteractiveAuthentication: |
752 | intptr = &options->kbd_interactive_authentication; | |
753 | goto parse_flag; | |
3c0ef626 | 754 | |
e9a17296 | 755 | case sChallengeResponseAuthentication: |
756 | intptr = &options->challenge_response_authentication; | |
757 | goto parse_flag; | |
3c0ef626 | 758 | |
e9a17296 | 759 | case sPrintMotd: |
760 | intptr = &options->print_motd; | |
761 | goto parse_flag; | |
3c0ef626 | 762 | |
e9a17296 | 763 | case sPrintLastLog: |
764 | intptr = &options->print_lastlog; | |
765 | goto parse_flag; | |
3c0ef626 | 766 | |
e9a17296 | 767 | case sX11Forwarding: |
768 | intptr = &options->x11_forwarding; | |
769 | goto parse_flag; | |
3c0ef626 | 770 | |
e9a17296 | 771 | case sX11DisplayOffset: |
772 | intptr = &options->x11_display_offset; | |
773 | goto parse_int; | |
3c0ef626 | 774 | |
e9a17296 | 775 | case sX11UseLocalhost: |
776 | intptr = &options->x11_use_localhost; | |
777 | goto parse_flag; | |
3c0ef626 | 778 | |
e9a17296 | 779 | case sXAuthLocation: |
780 | charptr = &options->xauth_location; | |
781 | goto parse_filename; | |
3c0ef626 | 782 | |
e9a17296 | 783 | case sStrictModes: |
784 | intptr = &options->strict_modes; | |
785 | goto parse_flag; | |
3c0ef626 | 786 | |
e9a17296 | 787 | case sKeepAlives: |
788 | intptr = &options->keepalives; | |
789 | goto parse_flag; | |
3c0ef626 | 790 | |
e9a17296 | 791 | case sEmptyPasswd: |
792 | intptr = &options->permit_empty_passwd; | |
793 | goto parse_flag; | |
3c0ef626 | 794 | |
e54b3d7c | 795 | case sPermitUserEnvironment: |
796 | intptr = &options->permit_user_env; | |
797 | goto parse_flag; | |
798 | ||
e9a17296 | 799 | case sUseLogin: |
800 | intptr = &options->use_login; | |
801 | goto parse_flag; | |
3c0ef626 | 802 | |
ff2d7a98 | 803 | case sCompression: |
804 | intptr = &options->compression; | |
805 | goto parse_flag; | |
806 | ||
e9a17296 | 807 | case sGatewayPorts: |
808 | intptr = &options->gateway_ports; | |
809 | goto parse_flag; | |
3c0ef626 | 810 | |
e9a17296 | 811 | case sVerifyReverseMapping: |
812 | intptr = &options->verify_reverse_mapping; | |
813 | goto parse_flag; | |
3c0ef626 | 814 | |
e9a17296 | 815 | case sLogFacility: |
816 | intptr = (int *) &options->log_facility; | |
817 | arg = strdelim(&cp); | |
818 | value = log_facility_number(arg); | |
819 | if (value == SYSLOG_FACILITY_NOT_SET) | |
820 | fatal("%.200s line %d: unsupported log facility '%s'", | |
821 | filename, linenum, arg ? arg : "<NONE>"); | |
822 | if (*intptr == -1) | |
823 | *intptr = (SyslogFacility) value; | |
824 | break; | |
825 | ||
826 | case sLogLevel: | |
827 | intptr = (int *) &options->log_level; | |
828 | arg = strdelim(&cp); | |
829 | value = log_level_number(arg); | |
830 | if (value == SYSLOG_LEVEL_NOT_SET) | |
831 | fatal("%.200s line %d: unsupported log level '%s'", | |
832 | filename, linenum, arg ? arg : "<NONE>"); | |
833 | if (*intptr == -1) | |
834 | *intptr = (LogLevel) value; | |
835 | break; | |
836 | ||
837 | case sAllowTcpForwarding: | |
838 | intptr = &options->allow_tcp_forwarding; | |
839 | goto parse_flag; | |
840 | ||
2980ea68 | 841 | case sUsePrivilegeSeparation: |
842 | intptr = &use_privsep; | |
843 | goto parse_flag; | |
844 | ||
e9a17296 | 845 | case sAllowUsers: |
846 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
847 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
848 | fatal("%s line %d: too many allow users.", | |
849 | filename, linenum); | |
ff2d7a98 | 850 | options->allow_users[options->num_allow_users++] = |
851 | xstrdup(arg); | |
e9a17296 | 852 | } |
853 | break; | |
3c0ef626 | 854 | |
e9a17296 | 855 | case sDenyUsers: |
856 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
857 | if (options->num_deny_users >= MAX_DENY_USERS) | |
858 | fatal( "%s line %d: too many deny users.", | |
859 | filename, linenum); | |
ff2d7a98 | 860 | options->deny_users[options->num_deny_users++] = |
861 | xstrdup(arg); | |
e9a17296 | 862 | } |
863 | break; | |
3c0ef626 | 864 | |
e9a17296 | 865 | case sAllowGroups: |
866 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
867 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
868 | fatal("%s line %d: too many allow groups.", | |
869 | filename, linenum); | |
ff2d7a98 | 870 | options->allow_groups[options->num_allow_groups++] = |
871 | xstrdup(arg); | |
e9a17296 | 872 | } |
873 | break; | |
3c0ef626 | 874 | |
e9a17296 | 875 | case sDenyGroups: |
876 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
877 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
878 | fatal("%s line %d: too many deny groups.", | |
879 | filename, linenum); | |
880 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
881 | } | |
882 | break; | |
883 | ||
884 | case sCiphers: | |
885 | arg = strdelim(&cp); | |
886 | if (!arg || *arg == '\0') | |
887 | fatal("%s line %d: Missing argument.", filename, linenum); | |
888 | if (!ciphers_valid(arg)) | |
889 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
890 | filename, linenum, arg ? arg : "<NONE>"); | |
891 | if (options->ciphers == NULL) | |
892 | options->ciphers = xstrdup(arg); | |
893 | break; | |
894 | ||
895 | case sMacs: | |
896 | arg = strdelim(&cp); | |
897 | if (!arg || *arg == '\0') | |
898 | fatal("%s line %d: Missing argument.", filename, linenum); | |
899 | if (!mac_valid(arg)) | |
900 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
901 | filename, linenum, arg ? arg : "<NONE>"); | |
902 | if (options->macs == NULL) | |
903 | options->macs = xstrdup(arg); | |
904 | break; | |
905 | ||
906 | case sProtocol: | |
907 | intptr = &options->protocol; | |
908 | arg = strdelim(&cp); | |
909 | if (!arg || *arg == '\0') | |
910 | fatal("%s line %d: Missing argument.", filename, linenum); | |
911 | value = proto_spec(arg); | |
912 | if (value == SSH_PROTO_UNKNOWN) | |
913 | fatal("%s line %d: Bad protocol spec '%s'.", | |
914 | filename, linenum, arg ? arg : "<NONE>"); | |
915 | if (*intptr == SSH_PROTO_UNKNOWN) | |
916 | *intptr = value; | |
917 | break; | |
918 | ||
919 | case sSubsystem: | |
920 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
921 | fatal("%s line %d: too many subsystems defined.", | |
922 | filename, linenum); | |
923 | } | |
924 | arg = strdelim(&cp); | |
925 | if (!arg || *arg == '\0') | |
926 | fatal("%s line %d: Missing subsystem name.", | |
927 | filename, linenum); | |
928 | for (i = 0; i < options->num_subsystems; i++) | |
929 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
930 | fatal("%s line %d: Subsystem '%s' already defined.", | |
931 | filename, linenum, arg); | |
932 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
933 | arg = strdelim(&cp); | |
934 | if (!arg || *arg == '\0') | |
935 | fatal("%s line %d: Missing subsystem command.", | |
936 | filename, linenum); | |
937 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); | |
938 | options->num_subsystems++; | |
939 | break; | |
940 | ||
941 | case sMaxStartups: | |
942 | arg = strdelim(&cp); | |
943 | if (!arg || *arg == '\0') | |
944 | fatal("%s line %d: Missing MaxStartups spec.", | |
945 | filename, linenum); | |
946 | if ((n = sscanf(arg, "%d:%d:%d", | |
947 | &options->max_startups_begin, | |
948 | &options->max_startups_rate, | |
949 | &options->max_startups)) == 3) { | |
950 | if (options->max_startups_begin > | |
951 | options->max_startups || | |
952 | options->max_startups_rate > 100 || | |
953 | options->max_startups_rate < 1) | |
3c0ef626 | 954 | fatal("%s line %d: Illegal MaxStartups spec.", |
955 | filename, linenum); | |
e9a17296 | 956 | } else if (n != 1) |
957 | fatal("%s line %d: Illegal MaxStartups spec.", | |
958 | filename, linenum); | |
959 | else | |
960 | options->max_startups = options->max_startups_begin; | |
961 | break; | |
962 | ||
963 | case sBanner: | |
964 | charptr = &options->banner; | |
965 | goto parse_filename; | |
966 | /* | |
967 | * These options can contain %X options expanded at | |
968 | * connect time, so that you can specify paths like: | |
969 | * | |
970 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
971 | */ | |
972 | case sAuthorizedKeysFile: | |
973 | case sAuthorizedKeysFile2: | |
974 | charptr = (opcode == sAuthorizedKeysFile ) ? | |
975 | &options->authorized_keys_file : | |
976 | &options->authorized_keys_file2; | |
977 | goto parse_filename; | |
978 | ||
979 | case sClientAliveInterval: | |
980 | intptr = &options->client_alive_interval; | |
981 | goto parse_time; | |
982 | ||
983 | case sClientAliveCountMax: | |
984 | intptr = &options->client_alive_count_max; | |
985 | goto parse_int; | |
986 | ||
987 | case sDeprecated: | |
988 | log("%s line %d: Deprecated option %s", | |
989 | filename, linenum, arg); | |
990 | while (arg) | |
991 | arg = strdelim(&cp); | |
992 | break; | |
993 | ||
994 | default: | |
995 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
996 | filename, linenum, arg, opcode); | |
997 | } | |
998 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
999 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
1000 | filename, linenum, arg); | |
1001 | return 0; | |
1002 | } | |
3c0ef626 | 1003 | |
e9a17296 | 1004 | /* Reads the server configuration file. */ |
3c0ef626 | 1005 | |
e9a17296 | 1006 | void |
1007 | read_server_config(ServerOptions *options, const char *filename) | |
1008 | { | |
ff2d7a98 | 1009 | int linenum, bad_options = 0; |
e9a17296 | 1010 | char line[1024]; |
ff2d7a98 | 1011 | FILE *f; |
e9a17296 | 1012 | |
1c14df9e | 1013 | debug2("read_server_config: filename %s", filename); |
e9a17296 | 1014 | f = fopen(filename, "r"); |
1015 | if (!f) { | |
1016 | perror(filename); | |
1017 | exit(1); | |
1018 | } | |
1019 | linenum = 0; | |
1020 | while (fgets(line, sizeof(line), f)) { | |
1021 | /* Update line number counter. */ | |
1022 | linenum++; | |
1023 | if (process_server_config_line(options, line, filename, linenum) != 0) | |
1024 | bad_options++; | |
3c0ef626 | 1025 | } |
1026 | fclose(f); | |
1027 | if (bad_options > 0) | |
1028 | fatal("%s: terminating, %d bad configuration options", | |
1029 | filename, bad_options); | |
1030 | } |