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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" | |
665a873d | 13 | RCSID("$OpenBSD: servconf.c,v 1.144 2005/08/06 10:03:12 dtucker Exp $"); |
3c0ef626 | 14 | |
15 | #include "ssh.h" | |
16 | #include "log.h" | |
17 | #include "servconf.h" | |
18 | #include "xmalloc.h" | |
19 | #include "compat.h" | |
20 | #include "pathnames.h" | |
3c0ef626 | 21 | #include "misc.h" |
22 | #include "cipher.h" | |
23 | #include "kex.h" | |
24 | #include "mac.h" | |
25 | ||
26 | static void add_listen_addr(ServerOptions *, char *, u_short); | |
27 | static void add_one_listen_addr(ServerOptions *, char *, u_short); | |
28 | ||
700318f3 | 29 | /* Use of privilege separation or not */ |
30 | extern int use_privsep; | |
3c0ef626 | 31 | |
32 | /* Initializes the server options to their default values. */ | |
33 | ||
34 | void | |
35 | initialize_server_options(ServerOptions *options) | |
36 | { | |
37 | memset(options, 0, sizeof(*options)); | |
38 | ||
39 | /* Portable-specific options */ | |
0fff78ff | 40 | options->use_pam = -1; |
3c0ef626 | 41 | |
42 | /* Standard Options */ | |
43 | options->num_ports = 0; | |
44 | options->ports_from_cmdline = 0; | |
45 | options->listen_addrs = NULL; | |
996d5e62 | 46 | options->address_family = -1; |
3c0ef626 | 47 | options->num_host_key_files = 0; |
48 | options->pid_file = NULL; | |
49 | options->server_key_bits = -1; | |
50 | options->login_grace_time = -1; | |
51 | options->key_regeneration_time = -1; | |
52 | options->permit_root_login = PERMIT_NOT_SET; | |
53 | options->ignore_rhosts = -1; | |
54 | options->ignore_user_known_hosts = -1; | |
55 | options->print_motd = -1; | |
56 | options->print_lastlog = -1; | |
57 | options->x11_forwarding = -1; | |
58 | options->x11_display_offset = -1; | |
e9a17296 | 59 | options->x11_use_localhost = -1; |
3c0ef626 | 60 | options->xauth_location = NULL; |
61 | options->strict_modes = -1; | |
cdd66111 | 62 | options->tcp_keep_alive = -1; |
e9a17296 | 63 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
64 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
3c0ef626 | 65 | options->rhosts_rsa_authentication = -1; |
66 | options->hostbased_authentication = -1; | |
67 | options->hostbased_uses_name_from_packet_only = -1; | |
68 | options->rsa_authentication = -1; | |
69 | options->pubkey_authentication = -1; | |
3c0ef626 | 70 | options->kerberos_authentication = -1; |
71 | options->kerberos_or_local_passwd = -1; | |
72 | options->kerberos_ticket_cleanup = -1; | |
cdd66111 | 73 | options->kerberos_get_afs_token = -1; |
0fff78ff | 74 | options->gss_authentication=-1; |
75 | options->gss_cleanup_creds = -1; | |
3c0ef626 | 76 | options->password_authentication = -1; |
77 | options->kbd_interactive_authentication = -1; | |
78 | options->challenge_response_authentication = -1; | |
79 | options->permit_empty_passwd = -1; | |
41b2f314 | 80 | options->permit_user_env = -1; |
3c0ef626 | 81 | options->use_login = -1; |
f5799ae1 | 82 | options->compression = -1; |
3c0ef626 | 83 | options->allow_tcp_forwarding = -1; |
84 | options->num_allow_users = 0; | |
85 | options->num_deny_users = 0; | |
86 | options->num_allow_groups = 0; | |
87 | options->num_deny_groups = 0; | |
88 | options->ciphers = NULL; | |
89 | options->macs = NULL; | |
90 | options->protocol = SSH_PROTO_UNKNOWN; | |
91 | options->gateway_ports = -1; | |
92 | options->num_subsystems = 0; | |
93 | options->max_startups_begin = -1; | |
94 | options->max_startups_rate = -1; | |
95 | options->max_startups = -1; | |
c9f39d2c | 96 | options->max_authtries = -1; |
3c0ef626 | 97 | options->banner = NULL; |
0fff78ff | 98 | options->use_dns = -1; |
3c0ef626 | 99 | options->client_alive_interval = -1; |
100 | options->client_alive_count_max = -1; | |
101 | options->authorized_keys_file = NULL; | |
102 | options->authorized_keys_file2 = NULL; | |
c9f39d2c | 103 | options->num_accept_env = 0; |
700318f3 | 104 | |
105 | /* Needs to be accessable in many places */ | |
106 | use_privsep = -1; | |
3c0ef626 | 107 | } |
108 | ||
109 | void | |
110 | fill_default_server_options(ServerOptions *options) | |
111 | { | |
112 | /* Portable-specific options */ | |
0fff78ff | 113 | if (options->use_pam == -1) |
acc3d05e | 114 | options->use_pam = 0; |
3c0ef626 | 115 | |
116 | /* Standard Options */ | |
117 | if (options->protocol == SSH_PROTO_UNKNOWN) | |
118 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
119 | if (options->num_host_key_files == 0) { | |
120 | /* fill default hostkeys for protocols */ | |
121 | if (options->protocol & SSH_PROTO_1) | |
e9a17296 | 122 | options->host_key_files[options->num_host_key_files++] = |
123 | _PATH_HOST_KEY_FILE; | |
124 | if (options->protocol & SSH_PROTO_2) { | |
125 | options->host_key_files[options->num_host_key_files++] = | |
126 | _PATH_HOST_RSA_KEY_FILE; | |
127 | options->host_key_files[options->num_host_key_files++] = | |
128 | _PATH_HOST_DSA_KEY_FILE; | |
129 | } | |
3c0ef626 | 130 | } |
131 | if (options->num_ports == 0) | |
132 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
133 | if (options->listen_addrs == NULL) | |
134 | add_listen_addr(options, NULL, 0); | |
135 | if (options->pid_file == NULL) | |
136 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; | |
137 | if (options->server_key_bits == -1) | |
138 | options->server_key_bits = 768; | |
139 | if (options->login_grace_time == -1) | |
41b2f314 | 140 | options->login_grace_time = 120; |
3c0ef626 | 141 | if (options->key_regeneration_time == -1) |
142 | options->key_regeneration_time = 3600; | |
143 | if (options->permit_root_login == PERMIT_NOT_SET) | |
144 | options->permit_root_login = PERMIT_YES; | |
145 | if (options->ignore_rhosts == -1) | |
146 | options->ignore_rhosts = 1; | |
147 | if (options->ignore_user_known_hosts == -1) | |
148 | options->ignore_user_known_hosts = 0; | |
149 | if (options->print_motd == -1) | |
150 | options->print_motd = 1; | |
151 | if (options->print_lastlog == -1) | |
152 | options->print_lastlog = 1; | |
153 | if (options->x11_forwarding == -1) | |
154 | options->x11_forwarding = 0; | |
155 | if (options->x11_display_offset == -1) | |
156 | options->x11_display_offset = 10; | |
e9a17296 | 157 | if (options->x11_use_localhost == -1) |
158 | options->x11_use_localhost = 1; | |
3c0ef626 | 159 | if (options->xauth_location == NULL) |
160 | options->xauth_location = _PATH_XAUTH; | |
3c0ef626 | 161 | if (options->strict_modes == -1) |
162 | options->strict_modes = 1; | |
cdd66111 | 163 | if (options->tcp_keep_alive == -1) |
164 | options->tcp_keep_alive = 1; | |
e9a17296 | 165 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
3c0ef626 | 166 | options->log_facility = SYSLOG_FACILITY_AUTH; |
e9a17296 | 167 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
3c0ef626 | 168 | options->log_level = SYSLOG_LEVEL_INFO; |
3c0ef626 | 169 | if (options->rhosts_rsa_authentication == -1) |
170 | options->rhosts_rsa_authentication = 0; | |
171 | if (options->hostbased_authentication == -1) | |
172 | options->hostbased_authentication = 0; | |
173 | if (options->hostbased_uses_name_from_packet_only == -1) | |
174 | options->hostbased_uses_name_from_packet_only = 0; | |
175 | if (options->rsa_authentication == -1) | |
176 | options->rsa_authentication = 1; | |
177 | if (options->pubkey_authentication == -1) | |
178 | options->pubkey_authentication = 1; | |
3c0ef626 | 179 | if (options->kerberos_authentication == -1) |
700318f3 | 180 | options->kerberos_authentication = 0; |
3c0ef626 | 181 | if (options->kerberos_or_local_passwd == -1) |
182 | options->kerberos_or_local_passwd = 1; | |
183 | if (options->kerberos_ticket_cleanup == -1) | |
184 | options->kerberos_ticket_cleanup = 1; | |
cdd66111 | 185 | if (options->kerberos_get_afs_token == -1) |
186 | options->kerberos_get_afs_token = 0; | |
0fff78ff | 187 | if (options->gss_authentication == -1) |
188 | options->gss_authentication = 0; | |
189 | if (options->gss_cleanup_creds == -1) | |
190 | options->gss_cleanup_creds = 1; | |
3c0ef626 | 191 | if (options->password_authentication == -1) |
192 | options->password_authentication = 1; | |
193 | if (options->kbd_interactive_authentication == -1) | |
194 | options->kbd_interactive_authentication = 0; | |
195 | if (options->challenge_response_authentication == -1) | |
196 | options->challenge_response_authentication = 1; | |
197 | if (options->permit_empty_passwd == -1) | |
198 | options->permit_empty_passwd = 0; | |
41b2f314 | 199 | if (options->permit_user_env == -1) |
200 | options->permit_user_env = 0; | |
3c0ef626 | 201 | if (options->use_login == -1) |
202 | options->use_login = 0; | |
f5799ae1 | 203 | if (options->compression == -1) |
665a873d | 204 | options->compression = COMP_DELAYED; |
3c0ef626 | 205 | if (options->allow_tcp_forwarding == -1) |
206 | options->allow_tcp_forwarding = 1; | |
207 | if (options->gateway_ports == -1) | |
208 | options->gateway_ports = 0; | |
209 | if (options->max_startups == -1) | |
210 | options->max_startups = 10; | |
211 | if (options->max_startups_rate == -1) | |
212 | options->max_startups_rate = 100; /* 100% */ | |
213 | if (options->max_startups_begin == -1) | |
214 | options->max_startups_begin = options->max_startups; | |
c9f39d2c | 215 | if (options->max_authtries == -1) |
216 | options->max_authtries = DEFAULT_AUTH_FAIL_MAX; | |
0fff78ff | 217 | if (options->use_dns == -1) |
218 | options->use_dns = 1; | |
3c0ef626 | 219 | if (options->client_alive_interval == -1) |
e9a17296 | 220 | options->client_alive_interval = 0; |
3c0ef626 | 221 | if (options->client_alive_count_max == -1) |
222 | options->client_alive_count_max = 3; | |
223 | if (options->authorized_keys_file2 == NULL) { | |
224 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
225 | if (options->authorized_keys_file != NULL) | |
226 | options->authorized_keys_file2 = options->authorized_keys_file; | |
227 | else | |
228 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
229 | } | |
230 | if (options->authorized_keys_file == NULL) | |
231 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
700318f3 | 232 | |
f5799ae1 | 233 | /* Turn privilege separation on by default */ |
700318f3 | 234 | if (use_privsep == -1) |
f5799ae1 | 235 | use_privsep = 1; |
236 | ||
41b2f314 | 237 | #ifndef HAVE_MMAP |
f5799ae1 | 238 | if (use_privsep && options->compression == 1) { |
239 | error("This platform does not support both privilege " | |
240 | "separation and compression"); | |
241 | error("Compression disabled"); | |
242 | options->compression = 0; | |
243 | } | |
244 | #endif | |
245 | ||
3c0ef626 | 246 | } |
247 | ||
248 | /* Keyword tokens. */ | |
249 | typedef enum { | |
250 | sBadOption, /* == unknown option */ | |
251 | /* Portable-specific options */ | |
0fff78ff | 252 | sUsePAM, |
3c0ef626 | 253 | /* Standard Options */ |
254 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
255 | sPermitRootLogin, sLogFacility, sLogLevel, | |
0fff78ff | 256 | sRhostsRSAAuthentication, sRSAAuthentication, |
3c0ef626 | 257 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
cdd66111 | 258 | sKerberosGetAFSToken, |
0fff78ff | 259 | sKerberosTgtPassing, sChallengeResponseAuthentication, |
996d5e62 | 260 | sPasswordAuthentication, sKbdInteractiveAuthentication, |
261 | sListenAddress, sAddressFamily, | |
3c0ef626 | 262 | sPrintMotd, sPrintLastLog, sIgnoreRhosts, |
e9a17296 | 263 | sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, |
cdd66111 | 264 | sStrictModes, sEmptyPasswd, sTCPKeepAlive, |
41b2f314 | 265 | sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, |
3c0ef626 | 266 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
267 | sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, | |
c9f39d2c | 268 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, |
269 | sMaxStartups, sMaxAuthTries, | |
0fff78ff | 270 | sBanner, sUseDNS, sHostbasedAuthentication, |
e9a17296 | 271 | sHostbasedUsesNameFromPacketOnly, sClientAliveInterval, |
3c0ef626 | 272 | sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2, |
c9f39d2c | 273 | sGssAuthentication, sGssCleanupCreds, sAcceptEnv, |
700318f3 | 274 | sUsePrivilegeSeparation, |
0fff78ff | 275 | sDeprecated, sUnsupported |
3c0ef626 | 276 | } ServerOpCodes; |
277 | ||
278 | /* Textual representation of the tokens. */ | |
279 | static struct { | |
280 | const char *name; | |
281 | ServerOpCodes opcode; | |
282 | } keywords[] = { | |
283 | /* Portable-specific options */ | |
0fff78ff | 284 | #ifdef USE_PAM |
285 | { "usepam", sUsePAM }, | |
286 | #else | |
287 | { "usepam", sUnsupported }, | |
288 | #endif | |
289 | { "pamauthenticationviakbdint", sDeprecated }, | |
3c0ef626 | 290 | /* Standard Options */ |
291 | { "port", sPort }, | |
292 | { "hostkey", sHostKeyFile }, | |
293 | { "hostdsakey", sHostKeyFile }, /* alias */ | |
294 | { "pidfile", sPidFile }, | |
295 | { "serverkeybits", sServerKeyBits }, | |
296 | { "logingracetime", sLoginGraceTime }, | |
297 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
298 | { "permitrootlogin", sPermitRootLogin }, | |
299 | { "syslogfacility", sLogFacility }, | |
300 | { "loglevel", sLogLevel }, | |
0fff78ff | 301 | { "rhostsauthentication", sDeprecated }, |
3c0ef626 | 302 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, |
303 | { "hostbasedauthentication", sHostbasedAuthentication }, | |
304 | { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly }, | |
305 | { "rsaauthentication", sRSAAuthentication }, | |
306 | { "pubkeyauthentication", sPubkeyAuthentication }, | |
307 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
0fff78ff | 308 | #ifdef KRB5 |
3c0ef626 | 309 | { "kerberosauthentication", sKerberosAuthentication }, |
310 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
311 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
cdd66111 | 312 | #ifdef USE_AFS |
313 | { "kerberosgetafstoken", sKerberosGetAFSToken }, | |
314 | #else | |
315 | { "kerberosgetafstoken", sUnsupported }, | |
316 | #endif | |
0fff78ff | 317 | #else |
318 | { "kerberosauthentication", sUnsupported }, | |
319 | { "kerberosorlocalpasswd", sUnsupported }, | |
320 | { "kerberosticketcleanup", sUnsupported }, | |
cdd66111 | 321 | { "kerberosgetafstoken", sUnsupported }, |
3c0ef626 | 322 | #endif |
0fff78ff | 323 | { "kerberostgtpassing", sUnsupported }, |
324 | { "afstokenpassing", sUnsupported }, | |
325 | #ifdef GSSAPI | |
326 | { "gssapiauthentication", sGssAuthentication }, | |
cdd66111 | 327 | { "gssapicleanupcredentials", sGssCleanupCreds }, |
0fff78ff | 328 | #else |
329 | { "gssapiauthentication", sUnsupported }, | |
cdd66111 | 330 | { "gssapicleanupcredentials", sUnsupported }, |
3c0ef626 | 331 | #endif |
332 | { "passwordauthentication", sPasswordAuthentication }, | |
333 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, | |
334 | { "challengeresponseauthentication", sChallengeResponseAuthentication }, | |
335 | { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */ | |
336 | { "checkmail", sDeprecated }, | |
337 | { "listenaddress", sListenAddress }, | |
996d5e62 | 338 | { "addressfamily", sAddressFamily }, |
3c0ef626 | 339 | { "printmotd", sPrintMotd }, |
340 | { "printlastlog", sPrintLastLog }, | |
341 | { "ignorerhosts", sIgnoreRhosts }, | |
342 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
343 | { "x11forwarding", sX11Forwarding }, | |
344 | { "x11displayoffset", sX11DisplayOffset }, | |
e9a17296 | 345 | { "x11uselocalhost", sX11UseLocalhost }, |
3c0ef626 | 346 | { "xauthlocation", sXAuthLocation }, |
347 | { "strictmodes", sStrictModes }, | |
348 | { "permitemptypasswords", sEmptyPasswd }, | |
41b2f314 | 349 | { "permituserenvironment", sPermitUserEnvironment }, |
3c0ef626 | 350 | { "uselogin", sUseLogin }, |
f5799ae1 | 351 | { "compression", sCompression }, |
cdd66111 | 352 | { "tcpkeepalive", sTCPKeepAlive }, |
353 | { "keepalive", sTCPKeepAlive }, /* obsolete alias */ | |
3c0ef626 | 354 | { "allowtcpforwarding", sAllowTcpForwarding }, |
355 | { "allowusers", sAllowUsers }, | |
356 | { "denyusers", sDenyUsers }, | |
357 | { "allowgroups", sAllowGroups }, | |
358 | { "denygroups", sDenyGroups }, | |
359 | { "ciphers", sCiphers }, | |
360 | { "macs", sMacs }, | |
361 | { "protocol", sProtocol }, | |
362 | { "gatewayports", sGatewayPorts }, | |
363 | { "subsystem", sSubsystem }, | |
364 | { "maxstartups", sMaxStartups }, | |
c9f39d2c | 365 | { "maxauthtries", sMaxAuthTries }, |
3c0ef626 | 366 | { "banner", sBanner }, |
0fff78ff | 367 | { "usedns", sUseDNS }, |
368 | { "verifyreversemapping", sDeprecated }, | |
369 | { "reversemappingcheck", sDeprecated }, | |
3c0ef626 | 370 | { "clientaliveinterval", sClientAliveInterval }, |
371 | { "clientalivecountmax", sClientAliveCountMax }, | |
372 | { "authorizedkeysfile", sAuthorizedKeysFile }, | |
373 | { "authorizedkeysfile2", sAuthorizedKeysFile2 }, | |
700318f3 | 374 | { "useprivilegeseparation", sUsePrivilegeSeparation}, |
c9f39d2c | 375 | { "acceptenv", sAcceptEnv }, |
e9a17296 | 376 | { NULL, sBadOption } |
3c0ef626 | 377 | }; |
378 | ||
379 | /* | |
380 | * Returns the number of the token pointed to by cp or sBadOption. | |
381 | */ | |
382 | ||
383 | static ServerOpCodes | |
384 | parse_token(const char *cp, const char *filename, | |
385 | int linenum) | |
386 | { | |
387 | u_int i; | |
388 | ||
389 | for (i = 0; keywords[i].name; i++) | |
390 | if (strcasecmp(cp, keywords[i].name) == 0) | |
391 | return keywords[i].opcode; | |
392 | ||
393 | error("%s: line %d: Bad configuration option: %s", | |
394 | filename, linenum, cp); | |
395 | return sBadOption; | |
396 | } | |
397 | ||
398 | static void | |
399 | add_listen_addr(ServerOptions *options, char *addr, u_short port) | |
400 | { | |
665a873d | 401 | u_int i; |
3c0ef626 | 402 | |
403 | if (options->num_ports == 0) | |
404 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
996d5e62 | 405 | if (options->address_family == -1) |
406 | options->address_family = AF_UNSPEC; | |
3c0ef626 | 407 | if (port == 0) |
408 | for (i = 0; i < options->num_ports; i++) | |
409 | add_one_listen_addr(options, addr, options->ports[i]); | |
410 | else | |
411 | add_one_listen_addr(options, addr, port); | |
412 | } | |
413 | ||
414 | static void | |
415 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) | |
416 | { | |
417 | struct addrinfo hints, *ai, *aitop; | |
418 | char strport[NI_MAXSERV]; | |
419 | int gaierr; | |
420 | ||
421 | memset(&hints, 0, sizeof(hints)); | |
996d5e62 | 422 | hints.ai_family = options->address_family; |
3c0ef626 | 423 | hints.ai_socktype = SOCK_STREAM; |
424 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
680cee3b | 425 | snprintf(strport, sizeof strport, "%u", port); |
3c0ef626 | 426 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
427 | fatal("bad addr or host: %s (%s)", | |
428 | addr ? addr : "<NULL>", | |
429 | gai_strerror(gaierr)); | |
430 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
431 | ; | |
432 | ai->ai_next = options->listen_addrs; | |
433 | options->listen_addrs = aitop; | |
434 | } | |
435 | ||
e9a17296 | 436 | int |
437 | process_server_config_line(ServerOptions *options, char *line, | |
438 | const char *filename, int linenum) | |
3c0ef626 | 439 | { |
3c0ef626 | 440 | char *cp, **charptr, *arg, *p; |
665a873d | 441 | int *intptr, value, n; |
3c0ef626 | 442 | ServerOpCodes opcode; |
996d5e62 | 443 | u_short port; |
665a873d | 444 | u_int i; |
3c0ef626 | 445 | |
e9a17296 | 446 | cp = line; |
447 | arg = strdelim(&cp); | |
448 | /* Ignore leading whitespace */ | |
449 | if (*arg == '\0') | |
3c0ef626 | 450 | arg = strdelim(&cp); |
e9a17296 | 451 | if (!arg || !*arg || *arg == '#') |
452 | return 0; | |
453 | intptr = NULL; | |
454 | charptr = NULL; | |
455 | opcode = parse_token(arg, filename, linenum); | |
456 | switch (opcode) { | |
457 | /* Portable-specific options */ | |
0fff78ff | 458 | case sUsePAM: |
459 | intptr = &options->use_pam; | |
e9a17296 | 460 | goto parse_flag; |
3c0ef626 | 461 | |
e9a17296 | 462 | /* Standard Options */ |
463 | case sBadOption: | |
464 | return -1; | |
465 | case sPort: | |
466 | /* ignore ports from configfile if cmdline specifies ports */ | |
467 | if (options->ports_from_cmdline) | |
468 | return 0; | |
469 | if (options->listen_addrs != NULL) | |
470 | fatal("%s line %d: ports must be specified before " | |
471 | "ListenAddress.", filename, linenum); | |
472 | if (options->num_ports >= MAX_PORTS) | |
473 | fatal("%s line %d: too many ports.", | |
474 | filename, linenum); | |
475 | arg = strdelim(&cp); | |
476 | if (!arg || *arg == '\0') | |
477 | fatal("%s line %d: missing port number.", | |
478 | filename, linenum); | |
479 | options->ports[options->num_ports++] = a2port(arg); | |
480 | if (options->ports[options->num_ports-1] == 0) | |
481 | fatal("%s line %d: Badly formatted port number.", | |
482 | filename, linenum); | |
483 | break; | |
484 | ||
485 | case sServerKeyBits: | |
486 | intptr = &options->server_key_bits; | |
3c0ef626 | 487 | parse_int: |
e9a17296 | 488 | arg = strdelim(&cp); |
489 | if (!arg || *arg == '\0') | |
490 | fatal("%s line %d: missing integer value.", | |
491 | filename, linenum); | |
492 | value = atoi(arg); | |
493 | if (*intptr == -1) | |
494 | *intptr = value; | |
495 | break; | |
496 | ||
497 | case sLoginGraceTime: | |
498 | intptr = &options->login_grace_time; | |
3c0ef626 | 499 | parse_time: |
e9a17296 | 500 | arg = strdelim(&cp); |
501 | if (!arg || *arg == '\0') | |
502 | fatal("%s line %d: missing time value.", | |
503 | filename, linenum); | |
504 | if ((value = convtime(arg)) == -1) | |
505 | fatal("%s line %d: invalid time value.", | |
506 | filename, linenum); | |
507 | if (*intptr == -1) | |
508 | *intptr = value; | |
509 | break; | |
510 | ||
511 | case sKeyRegenerationTime: | |
512 | intptr = &options->key_regeneration_time; | |
513 | goto parse_time; | |
514 | ||
515 | case sListenAddress: | |
516 | arg = strdelim(&cp); | |
996d5e62 | 517 | if (arg == NULL || *arg == '\0') |
518 | fatal("%s line %d: missing address", | |
e9a17296 | 519 | filename, linenum); |
665a873d | 520 | /* check for bare IPv6 address: no "[]" and 2 or more ":" */ |
521 | if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL | |
522 | && strchr(p+1, ':') != NULL) { | |
523 | add_listen_addr(options, arg, 0); | |
524 | break; | |
525 | } | |
996d5e62 | 526 | p = hpdelim(&arg); |
527 | if (p == NULL) | |
528 | fatal("%s line %d: bad address:port usage", | |
e9a17296 | 529 | filename, linenum); |
996d5e62 | 530 | p = cleanhostname(p); |
531 | if (arg == NULL) | |
532 | port = 0; | |
533 | else if ((port = a2port(arg)) == 0) | |
534 | fatal("%s line %d: bad port number", filename, linenum); | |
535 | ||
536 | add_listen_addr(options, p, port); | |
537 | ||
538 | break; | |
539 | ||
540 | case sAddressFamily: | |
541 | arg = strdelim(&cp); | |
665a873d | 542 | if (!arg || *arg == '\0') |
543 | fatal("%s line %d: missing address family.", | |
544 | filename, linenum); | |
996d5e62 | 545 | intptr = &options->address_family; |
546 | if (options->listen_addrs != NULL) | |
547 | fatal("%s line %d: address family must be specified before " | |
548 | "ListenAddress.", filename, linenum); | |
549 | if (strcasecmp(arg, "inet") == 0) | |
550 | value = AF_INET; | |
551 | else if (strcasecmp(arg, "inet6") == 0) | |
552 | value = AF_INET6; | |
553 | else if (strcasecmp(arg, "any") == 0) | |
554 | value = AF_UNSPEC; | |
555 | else | |
556 | fatal("%s line %d: unsupported address family \"%s\".", | |
557 | filename, linenum, arg); | |
558 | if (*intptr == -1) | |
559 | *intptr = value; | |
e9a17296 | 560 | break; |
561 | ||
562 | case sHostKeyFile: | |
563 | intptr = &options->num_host_key_files; | |
564 | if (*intptr >= MAX_HOSTKEYS) | |
565 | fatal("%s line %d: too many host keys specified (max %d).", | |
566 | filename, linenum, MAX_HOSTKEYS); | |
567 | charptr = &options->host_key_files[*intptr]; | |
3c0ef626 | 568 | parse_filename: |
e9a17296 | 569 | arg = strdelim(&cp); |
570 | if (!arg || *arg == '\0') | |
571 | fatal("%s line %d: missing file name.", | |
572 | filename, linenum); | |
573 | if (*charptr == NULL) { | |
574 | *charptr = tilde_expand_filename(arg, getuid()); | |
575 | /* increase optional counter */ | |
576 | if (intptr != NULL) | |
577 | *intptr = *intptr + 1; | |
578 | } | |
579 | break; | |
3c0ef626 | 580 | |
e9a17296 | 581 | case sPidFile: |
582 | charptr = &options->pid_file; | |
583 | goto parse_filename; | |
3c0ef626 | 584 | |
e9a17296 | 585 | case sPermitRootLogin: |
586 | intptr = &options->permit_root_login; | |
587 | arg = strdelim(&cp); | |
588 | if (!arg || *arg == '\0') | |
589 | fatal("%s line %d: missing yes/" | |
590 | "without-password/forced-commands-only/no " | |
591 | "argument.", filename, linenum); | |
592 | value = 0; /* silence compiler */ | |
593 | if (strcmp(arg, "without-password") == 0) | |
594 | value = PERMIT_NO_PASSWD; | |
595 | else if (strcmp(arg, "forced-commands-only") == 0) | |
596 | value = PERMIT_FORCED_ONLY; | |
597 | else if (strcmp(arg, "yes") == 0) | |
598 | value = PERMIT_YES; | |
599 | else if (strcmp(arg, "no") == 0) | |
600 | value = PERMIT_NO; | |
601 | else | |
602 | fatal("%s line %d: Bad yes/" | |
603 | "without-password/forced-commands-only/no " | |
604 | "argument: %s", filename, linenum, arg); | |
605 | if (*intptr == -1) | |
606 | *intptr = value; | |
607 | break; | |
608 | ||
609 | case sIgnoreRhosts: | |
610 | intptr = &options->ignore_rhosts; | |
3c0ef626 | 611 | parse_flag: |
e9a17296 | 612 | arg = strdelim(&cp); |
613 | if (!arg || *arg == '\0') | |
614 | fatal("%s line %d: missing yes/no argument.", | |
615 | filename, linenum); | |
616 | value = 0; /* silence compiler */ | |
617 | if (strcmp(arg, "yes") == 0) | |
618 | value = 1; | |
619 | else if (strcmp(arg, "no") == 0) | |
620 | value = 0; | |
621 | else | |
622 | fatal("%s line %d: Bad yes/no argument: %s", | |
623 | filename, linenum, arg); | |
624 | if (*intptr == -1) | |
625 | *intptr = value; | |
626 | break; | |
627 | ||
628 | case sIgnoreUserKnownHosts: | |
629 | intptr = &options->ignore_user_known_hosts; | |
630 | goto parse_flag; | |
631 | ||
e9a17296 | 632 | case sRhostsRSAAuthentication: |
633 | intptr = &options->rhosts_rsa_authentication; | |
634 | goto parse_flag; | |
635 | ||
636 | case sHostbasedAuthentication: | |
637 | intptr = &options->hostbased_authentication; | |
638 | goto parse_flag; | |
639 | ||
640 | case sHostbasedUsesNameFromPacketOnly: | |
641 | intptr = &options->hostbased_uses_name_from_packet_only; | |
642 | goto parse_flag; | |
643 | ||
644 | case sRSAAuthentication: | |
645 | intptr = &options->rsa_authentication; | |
646 | goto parse_flag; | |
647 | ||
648 | case sPubkeyAuthentication: | |
649 | intptr = &options->pubkey_authentication; | |
650 | goto parse_flag; | |
0fff78ff | 651 | |
e9a17296 | 652 | case sKerberosAuthentication: |
653 | intptr = &options->kerberos_authentication; | |
654 | goto parse_flag; | |
3c0ef626 | 655 | |
e9a17296 | 656 | case sKerberosOrLocalPasswd: |
657 | intptr = &options->kerberos_or_local_passwd; | |
658 | goto parse_flag; | |
3c0ef626 | 659 | |
e9a17296 | 660 | case sKerberosTicketCleanup: |
661 | intptr = &options->kerberos_ticket_cleanup; | |
662 | goto parse_flag; | |
0fff78ff | 663 | |
cdd66111 | 664 | case sKerberosGetAFSToken: |
665 | intptr = &options->kerberos_get_afs_token; | |
666 | goto parse_flag; | |
667 | ||
0fff78ff | 668 | case sGssAuthentication: |
669 | intptr = &options->gss_authentication; | |
e9a17296 | 670 | goto parse_flag; |
0fff78ff | 671 | |
672 | case sGssCleanupCreds: | |
673 | intptr = &options->gss_cleanup_creds; | |
e9a17296 | 674 | goto parse_flag; |
3c0ef626 | 675 | |
e9a17296 | 676 | case sPasswordAuthentication: |
677 | intptr = &options->password_authentication; | |
678 | goto parse_flag; | |
3c0ef626 | 679 | |
e9a17296 | 680 | case sKbdInteractiveAuthentication: |
681 | intptr = &options->kbd_interactive_authentication; | |
682 | goto parse_flag; | |
3c0ef626 | 683 | |
e9a17296 | 684 | case sChallengeResponseAuthentication: |
685 | intptr = &options->challenge_response_authentication; | |
686 | goto parse_flag; | |
3c0ef626 | 687 | |
e9a17296 | 688 | case sPrintMotd: |
689 | intptr = &options->print_motd; | |
690 | goto parse_flag; | |
3c0ef626 | 691 | |
e9a17296 | 692 | case sPrintLastLog: |
693 | intptr = &options->print_lastlog; | |
694 | goto parse_flag; | |
3c0ef626 | 695 | |
e9a17296 | 696 | case sX11Forwarding: |
697 | intptr = &options->x11_forwarding; | |
698 | goto parse_flag; | |
3c0ef626 | 699 | |
e9a17296 | 700 | case sX11DisplayOffset: |
701 | intptr = &options->x11_display_offset; | |
702 | goto parse_int; | |
3c0ef626 | 703 | |
e9a17296 | 704 | case sX11UseLocalhost: |
705 | intptr = &options->x11_use_localhost; | |
706 | goto parse_flag; | |
3c0ef626 | 707 | |
e9a17296 | 708 | case sXAuthLocation: |
709 | charptr = &options->xauth_location; | |
710 | goto parse_filename; | |
3c0ef626 | 711 | |
e9a17296 | 712 | case sStrictModes: |
713 | intptr = &options->strict_modes; | |
714 | goto parse_flag; | |
3c0ef626 | 715 | |
cdd66111 | 716 | case sTCPKeepAlive: |
717 | intptr = &options->tcp_keep_alive; | |
e9a17296 | 718 | goto parse_flag; |
3c0ef626 | 719 | |
e9a17296 | 720 | case sEmptyPasswd: |
721 | intptr = &options->permit_empty_passwd; | |
722 | goto parse_flag; | |
3c0ef626 | 723 | |
41b2f314 | 724 | case sPermitUserEnvironment: |
725 | intptr = &options->permit_user_env; | |
726 | goto parse_flag; | |
727 | ||
e9a17296 | 728 | case sUseLogin: |
729 | intptr = &options->use_login; | |
730 | goto parse_flag; | |
3c0ef626 | 731 | |
f5799ae1 | 732 | case sCompression: |
733 | intptr = &options->compression; | |
665a873d | 734 | arg = strdelim(&cp); |
735 | if (!arg || *arg == '\0') | |
736 | fatal("%s line %d: missing yes/no/delayed " | |
737 | "argument.", filename, linenum); | |
738 | value = 0; /* silence compiler */ | |
739 | if (strcmp(arg, "delayed") == 0) | |
740 | value = COMP_DELAYED; | |
741 | else if (strcmp(arg, "yes") == 0) | |
742 | value = COMP_ZLIB; | |
743 | else if (strcmp(arg, "no") == 0) | |
744 | value = COMP_NONE; | |
745 | else | |
746 | fatal("%s line %d: Bad yes/no/delayed " | |
747 | "argument: %s", filename, linenum, arg); | |
748 | if (*intptr == -1) | |
749 | *intptr = value; | |
750 | break; | |
f5799ae1 | 751 | |
e9a17296 | 752 | case sGatewayPorts: |
753 | intptr = &options->gateway_ports; | |
996d5e62 | 754 | arg = strdelim(&cp); |
755 | if (!arg || *arg == '\0') | |
756 | fatal("%s line %d: missing yes/no/clientspecified " | |
757 | "argument.", filename, linenum); | |
758 | value = 0; /* silence compiler */ | |
759 | if (strcmp(arg, "clientspecified") == 0) | |
760 | value = 2; | |
761 | else if (strcmp(arg, "yes") == 0) | |
762 | value = 1; | |
763 | else if (strcmp(arg, "no") == 0) | |
764 | value = 0; | |
765 | else | |
766 | fatal("%s line %d: Bad yes/no/clientspecified " | |
767 | "argument: %s", filename, linenum, arg); | |
768 | if (*intptr == -1) | |
769 | *intptr = value; | |
770 | break; | |
3c0ef626 | 771 | |
0fff78ff | 772 | case sUseDNS: |
773 | intptr = &options->use_dns; | |
e9a17296 | 774 | goto parse_flag; |
3c0ef626 | 775 | |
e9a17296 | 776 | case sLogFacility: |
777 | intptr = (int *) &options->log_facility; | |
778 | arg = strdelim(&cp); | |
779 | value = log_facility_number(arg); | |
780 | if (value == SYSLOG_FACILITY_NOT_SET) | |
781 | fatal("%.200s line %d: unsupported log facility '%s'", | |
782 | filename, linenum, arg ? arg : "<NONE>"); | |
783 | if (*intptr == -1) | |
784 | *intptr = (SyslogFacility) value; | |
785 | break; | |
786 | ||
787 | case sLogLevel: | |
788 | intptr = (int *) &options->log_level; | |
789 | arg = strdelim(&cp); | |
790 | value = log_level_number(arg); | |
791 | if (value == SYSLOG_LEVEL_NOT_SET) | |
792 | fatal("%.200s line %d: unsupported log level '%s'", | |
793 | filename, linenum, arg ? arg : "<NONE>"); | |
794 | if (*intptr == -1) | |
795 | *intptr = (LogLevel) value; | |
796 | break; | |
797 | ||
798 | case sAllowTcpForwarding: | |
799 | intptr = &options->allow_tcp_forwarding; | |
800 | goto parse_flag; | |
801 | ||
700318f3 | 802 | case sUsePrivilegeSeparation: |
803 | intptr = &use_privsep; | |
804 | goto parse_flag; | |
805 | ||
e9a17296 | 806 | case sAllowUsers: |
807 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
808 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
809 | fatal("%s line %d: too many allow users.", | |
810 | filename, linenum); | |
680cee3b | 811 | options->allow_users[options->num_allow_users++] = |
812 | xstrdup(arg); | |
e9a17296 | 813 | } |
814 | break; | |
3c0ef626 | 815 | |
e9a17296 | 816 | case sDenyUsers: |
817 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
818 | if (options->num_deny_users >= MAX_DENY_USERS) | |
819 | fatal( "%s line %d: too many deny users.", | |
820 | filename, linenum); | |
680cee3b | 821 | options->deny_users[options->num_deny_users++] = |
822 | xstrdup(arg); | |
e9a17296 | 823 | } |
824 | break; | |
3c0ef626 | 825 | |
e9a17296 | 826 | case sAllowGroups: |
827 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
828 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
829 | fatal("%s line %d: too many allow groups.", | |
830 | filename, linenum); | |
680cee3b | 831 | options->allow_groups[options->num_allow_groups++] = |
832 | xstrdup(arg); | |
e9a17296 | 833 | } |
834 | break; | |
3c0ef626 | 835 | |
e9a17296 | 836 | case sDenyGroups: |
837 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
838 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
839 | fatal("%s line %d: too many deny groups.", | |
840 | filename, linenum); | |
841 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
842 | } | |
843 | break; | |
844 | ||
845 | case sCiphers: | |
846 | arg = strdelim(&cp); | |
847 | if (!arg || *arg == '\0') | |
848 | fatal("%s line %d: Missing argument.", filename, linenum); | |
849 | if (!ciphers_valid(arg)) | |
850 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
851 | filename, linenum, arg ? arg : "<NONE>"); | |
852 | if (options->ciphers == NULL) | |
853 | options->ciphers = xstrdup(arg); | |
854 | break; | |
855 | ||
856 | case sMacs: | |
857 | arg = strdelim(&cp); | |
858 | if (!arg || *arg == '\0') | |
859 | fatal("%s line %d: Missing argument.", filename, linenum); | |
860 | if (!mac_valid(arg)) | |
861 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
862 | filename, linenum, arg ? arg : "<NONE>"); | |
863 | if (options->macs == NULL) | |
864 | options->macs = xstrdup(arg); | |
865 | break; | |
866 | ||
867 | case sProtocol: | |
868 | intptr = &options->protocol; | |
869 | arg = strdelim(&cp); | |
870 | if (!arg || *arg == '\0') | |
871 | fatal("%s line %d: Missing argument.", filename, linenum); | |
872 | value = proto_spec(arg); | |
873 | if (value == SSH_PROTO_UNKNOWN) | |
874 | fatal("%s line %d: Bad protocol spec '%s'.", | |
875 | filename, linenum, arg ? arg : "<NONE>"); | |
876 | if (*intptr == SSH_PROTO_UNKNOWN) | |
877 | *intptr = value; | |
878 | break; | |
879 | ||
880 | case sSubsystem: | |
881 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
882 | fatal("%s line %d: too many subsystems defined.", | |
883 | filename, linenum); | |
884 | } | |
885 | arg = strdelim(&cp); | |
886 | if (!arg || *arg == '\0') | |
887 | fatal("%s line %d: Missing subsystem name.", | |
888 | filename, linenum); | |
889 | for (i = 0; i < options->num_subsystems; i++) | |
890 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
891 | fatal("%s line %d: Subsystem '%s' already defined.", | |
892 | filename, linenum, arg); | |
893 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
894 | arg = strdelim(&cp); | |
895 | if (!arg || *arg == '\0') | |
896 | fatal("%s line %d: Missing subsystem command.", | |
897 | filename, linenum); | |
898 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); | |
899 | options->num_subsystems++; | |
900 | break; | |
901 | ||
902 | case sMaxStartups: | |
903 | arg = strdelim(&cp); | |
904 | if (!arg || *arg == '\0') | |
905 | fatal("%s line %d: Missing MaxStartups spec.", | |
906 | filename, linenum); | |
907 | if ((n = sscanf(arg, "%d:%d:%d", | |
908 | &options->max_startups_begin, | |
909 | &options->max_startups_rate, | |
910 | &options->max_startups)) == 3) { | |
911 | if (options->max_startups_begin > | |
912 | options->max_startups || | |
913 | options->max_startups_rate > 100 || | |
914 | options->max_startups_rate < 1) | |
3c0ef626 | 915 | fatal("%s line %d: Illegal MaxStartups spec.", |
916 | filename, linenum); | |
e9a17296 | 917 | } else if (n != 1) |
918 | fatal("%s line %d: Illegal MaxStartups spec.", | |
919 | filename, linenum); | |
920 | else | |
921 | options->max_startups = options->max_startups_begin; | |
922 | break; | |
923 | ||
c9f39d2c | 924 | case sMaxAuthTries: |
925 | intptr = &options->max_authtries; | |
926 | goto parse_int; | |
927 | ||
e9a17296 | 928 | case sBanner: |
929 | charptr = &options->banner; | |
930 | goto parse_filename; | |
931 | /* | |
932 | * These options can contain %X options expanded at | |
933 | * connect time, so that you can specify paths like: | |
934 | * | |
935 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
936 | */ | |
937 | case sAuthorizedKeysFile: | |
938 | case sAuthorizedKeysFile2: | |
939 | charptr = (opcode == sAuthorizedKeysFile ) ? | |
940 | &options->authorized_keys_file : | |
941 | &options->authorized_keys_file2; | |
942 | goto parse_filename; | |
943 | ||
944 | case sClientAliveInterval: | |
945 | intptr = &options->client_alive_interval; | |
946 | goto parse_time; | |
947 | ||
948 | case sClientAliveCountMax: | |
949 | intptr = &options->client_alive_count_max; | |
950 | goto parse_int; | |
951 | ||
c9f39d2c | 952 | case sAcceptEnv: |
953 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
954 | if (strchr(arg, '=') != NULL) | |
955 | fatal("%s line %d: Invalid environment name.", | |
956 | filename, linenum); | |
957 | if (options->num_accept_env >= MAX_ACCEPT_ENV) | |
958 | fatal("%s line %d: too many allow env.", | |
959 | filename, linenum); | |
960 | options->accept_env[options->num_accept_env++] = | |
961 | xstrdup(arg); | |
962 | } | |
963 | break; | |
964 | ||
e9a17296 | 965 | case sDeprecated: |
0fff78ff | 966 | logit("%s line %d: Deprecated option %s", |
967 | filename, linenum, arg); | |
968 | while (arg) | |
969 | arg = strdelim(&cp); | |
970 | break; | |
971 | ||
972 | case sUnsupported: | |
973 | logit("%s line %d: Unsupported option %s", | |
e9a17296 | 974 | filename, linenum, arg); |
975 | while (arg) | |
976 | arg = strdelim(&cp); | |
977 | break; | |
978 | ||
979 | default: | |
980 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
981 | filename, linenum, arg, opcode); | |
982 | } | |
983 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
984 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
985 | filename, linenum, arg); | |
986 | return 0; | |
987 | } | |
3c0ef626 | 988 | |
e9a17296 | 989 | /* Reads the server configuration file. */ |
3c0ef626 | 990 | |
e9a17296 | 991 | void |
c9f39d2c | 992 | load_server_config(const char *filename, Buffer *conf) |
e9a17296 | 993 | { |
c9f39d2c | 994 | char line[1024], *cp; |
680cee3b | 995 | FILE *f; |
e9a17296 | 996 | |
c9f39d2c | 997 | debug2("%s: filename %s", __func__, filename); |
998 | if ((f = fopen(filename, "r")) == NULL) { | |
e9a17296 | 999 | perror(filename); |
1000 | exit(1); | |
1001 | } | |
c9f39d2c | 1002 | buffer_clear(conf); |
e9a17296 | 1003 | while (fgets(line, sizeof(line), f)) { |
c9f39d2c | 1004 | /* |
1005 | * Trim out comments and strip whitespace | |
1006 | * NB - preserve newlines, they are needed to reproduce | |
1007 | * line numbers later for error messages | |
1008 | */ | |
1009 | if ((cp = strchr(line, '#')) != NULL) | |
1010 | memcpy(cp, "\n", 2); | |
1011 | cp = line + strspn(line, " \t\r"); | |
1012 | ||
1013 | buffer_append(conf, cp, strlen(cp)); | |
3c0ef626 | 1014 | } |
c9f39d2c | 1015 | buffer_append(conf, "\0", 1); |
3c0ef626 | 1016 | fclose(f); |
c9f39d2c | 1017 | debug2("%s: done config len = %d", __func__, buffer_len(conf)); |
1018 | } | |
1019 | ||
1020 | void | |
1021 | parse_server_config(ServerOptions *options, const char *filename, Buffer *conf) | |
1022 | { | |
1023 | int linenum, bad_options = 0; | |
1024 | char *cp, *obuf, *cbuf; | |
1025 | ||
1026 | debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); | |
1027 | ||
1028 | obuf = cbuf = xstrdup(buffer_ptr(conf)); | |
1029 | linenum = 1; | |
dec6d9fe | 1030 | while ((cp = strsep(&cbuf, "\n")) != NULL) { |
c9f39d2c | 1031 | if (process_server_config_line(options, cp, filename, |
1032 | linenum++) != 0) | |
1033 | bad_options++; | |
1034 | } | |
1035 | xfree(obuf); | |
3c0ef626 | 1036 | if (bad_options > 0) |
1037 | fatal("%s: terminating, %d bad configuration options", | |
1038 | filename, bad_options); | |
1039 | } |