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Commit | Line | Data |
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8efc0c15 | 1 | /* |
6ae2364d | 2 | * |
5260325f | 3 | * servconf.c |
6ae2364d | 4 | * |
5260325f | 5 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
6ae2364d | 6 | * |
5260325f | 7 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
8 | * All rights reserved | |
6ae2364d | 9 | * |
5260325f | 10 | * Created: Mon Aug 21 15:48:58 1995 ylo |
6ae2364d | 11 | * |
5260325f | 12 | */ |
8efc0c15 | 13 | |
14 | #include "includes.h" | |
15 | RCSID("$Id$"); | |
16 | ||
17 | #include "ssh.h" | |
18 | #include "servconf.h" | |
19 | #include "xmalloc.h" | |
a8be9f80 | 20 | #include "compat.h" |
8efc0c15 | 21 | |
48e671d5 | 22 | /* add listen address */ |
23 | void add_listen_addr(ServerOptions *options, char *addr); | |
24 | ||
8efc0c15 | 25 | /* Initializes the server options to their default values. */ |
26 | ||
6ae2364d | 27 | void |
5260325f | 28 | initialize_server_options(ServerOptions *options) |
8efc0c15 | 29 | { |
5260325f | 30 | memset(options, 0, sizeof(*options)); |
48e671d5 | 31 | options->num_ports = 0; |
32 | options->ports_from_cmdline = 0; | |
33 | options->listen_addrs = NULL; | |
5260325f | 34 | options->host_key_file = NULL; |
1d1ffb87 | 35 | options->host_dsa_key_file = NULL; |
0fbe8c74 | 36 | options->pid_file = NULL; |
5260325f | 37 | options->server_key_bits = -1; |
38 | options->login_grace_time = -1; | |
39 | options->key_regeneration_time = -1; | |
40 | options->permit_root_login = -1; | |
41 | options->ignore_rhosts = -1; | |
42 | options->ignore_user_known_hosts = -1; | |
43 | options->print_motd = -1; | |
44 | options->check_mail = -1; | |
45 | options->x11_forwarding = -1; | |
46 | options->x11_display_offset = -1; | |
47 | options->strict_modes = -1; | |
48 | options->keepalives = -1; | |
49 | options->log_facility = (SyslogFacility) - 1; | |
50 | options->log_level = (LogLevel) - 1; | |
51 | options->rhosts_authentication = -1; | |
52 | options->rhosts_rsa_authentication = -1; | |
53 | options->rsa_authentication = -1; | |
1d1ffb87 | 54 | options->dsa_authentication = -1; |
8efc0c15 | 55 | #ifdef KRB4 |
5260325f | 56 | options->kerberos_authentication = -1; |
57 | options->kerberos_or_local_passwd = -1; | |
58 | options->kerberos_ticket_cleanup = -1; | |
8efc0c15 | 59 | #endif |
60 | #ifdef AFS | |
5260325f | 61 | options->kerberos_tgt_passing = -1; |
62 | options->afs_token_passing = -1; | |
8efc0c15 | 63 | #endif |
5260325f | 64 | options->password_authentication = -1; |
8efc0c15 | 65 | #ifdef SKEY |
5260325f | 66 | options->skey_authentication = -1; |
8efc0c15 | 67 | #endif |
5260325f | 68 | options->permit_empty_passwd = -1; |
69 | options->use_login = -1; | |
70 | options->num_allow_users = 0; | |
71 | options->num_deny_users = 0; | |
72 | options->num_allow_groups = 0; | |
73 | options->num_deny_groups = 0; | |
a8be9f80 | 74 | options->ciphers = NULL; |
75 | options->protocol = SSH_PROTO_UNKNOWN; | |
1d1ffb87 | 76 | options->gateway_ports = -1; |
8efc0c15 | 77 | } |
78 | ||
6ae2364d | 79 | void |
5260325f | 80 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 81 | { |
48e671d5 | 82 | if (options->num_ports == 0) |
83 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
84 | if (options->listen_addrs == NULL) | |
85 | add_listen_addr(options, NULL); | |
5260325f | 86 | if (options->host_key_file == NULL) |
87 | options->host_key_file = HOST_KEY_FILE; | |
1d1ffb87 | 88 | if (options->host_dsa_key_file == NULL) |
89 | options->host_dsa_key_file = HOST_DSA_KEY_FILE; | |
0fbe8c74 | 90 | if (options->pid_file == NULL) |
91 | options->pid_file = SSH_DAEMON_PID_FILE; | |
5260325f | 92 | if (options->server_key_bits == -1) |
93 | options->server_key_bits = 768; | |
94 | if (options->login_grace_time == -1) | |
95 | options->login_grace_time = 600; | |
96 | if (options->key_regeneration_time == -1) | |
97 | options->key_regeneration_time = 3600; | |
98 | if (options->permit_root_login == -1) | |
99 | options->permit_root_login = 1; /* yes */ | |
100 | if (options->ignore_rhosts == -1) | |
c8d54615 | 101 | options->ignore_rhosts = 1; |
5260325f | 102 | if (options->ignore_user_known_hosts == -1) |
103 | options->ignore_user_known_hosts = 0; | |
104 | if (options->check_mail == -1) | |
105 | options->check_mail = 0; | |
106 | if (options->print_motd == -1) | |
107 | options->print_motd = 1; | |
108 | if (options->x11_forwarding == -1) | |
c8d54615 | 109 | options->x11_forwarding = 0; |
5260325f | 110 | if (options->x11_display_offset == -1) |
c8d54615 | 111 | options->x11_display_offset = 10; |
5260325f | 112 | if (options->strict_modes == -1) |
113 | options->strict_modes = 1; | |
114 | if (options->keepalives == -1) | |
115 | options->keepalives = 1; | |
116 | if (options->log_facility == (SyslogFacility) (-1)) | |
117 | options->log_facility = SYSLOG_FACILITY_AUTH; | |
118 | if (options->log_level == (LogLevel) (-1)) | |
119 | options->log_level = SYSLOG_LEVEL_INFO; | |
120 | if (options->rhosts_authentication == -1) | |
121 | options->rhosts_authentication = 0; | |
122 | if (options->rhosts_rsa_authentication == -1) | |
c8d54615 | 123 | options->rhosts_rsa_authentication = 0; |
5260325f | 124 | if (options->rsa_authentication == -1) |
125 | options->rsa_authentication = 1; | |
1d1ffb87 | 126 | if (options->dsa_authentication == -1) |
127 | options->dsa_authentication = 1; | |
8efc0c15 | 128 | #ifdef KRB4 |
5260325f | 129 | if (options->kerberos_authentication == -1) |
130 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); | |
131 | if (options->kerberos_or_local_passwd == -1) | |
132 | options->kerberos_or_local_passwd = 1; | |
133 | if (options->kerberos_ticket_cleanup == -1) | |
134 | options->kerberos_ticket_cleanup = 1; | |
8efc0c15 | 135 | #endif /* KRB4 */ |
136 | #ifdef AFS | |
5260325f | 137 | if (options->kerberos_tgt_passing == -1) |
138 | options->kerberos_tgt_passing = 0; | |
139 | if (options->afs_token_passing == -1) | |
140 | options->afs_token_passing = k_hasafs(); | |
8efc0c15 | 141 | #endif /* AFS */ |
5260325f | 142 | if (options->password_authentication == -1) |
143 | options->password_authentication = 1; | |
8efc0c15 | 144 | #ifdef SKEY |
5260325f | 145 | if (options->skey_authentication == -1) |
146 | options->skey_authentication = 1; | |
8efc0c15 | 147 | #endif |
5260325f | 148 | if (options->permit_empty_passwd == -1) |
c8d54615 | 149 | options->permit_empty_passwd = 0; |
5260325f | 150 | if (options->use_login == -1) |
151 | options->use_login = 0; | |
a8be9f80 | 152 | if (options->protocol == SSH_PROTO_UNKNOWN) |
a306f2dd | 153 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; |
1d1ffb87 | 154 | if (options->gateway_ports == -1) |
155 | options->gateway_ports = 0; | |
8efc0c15 | 156 | } |
157 | ||
158 | #define WHITESPACE " \t\r\n" | |
159 | ||
160 | /* Keyword tokens. */ | |
5260325f | 161 | typedef enum { |
162 | sBadOption, /* == unknown option */ | |
163 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
164 | sPermitRootLogin, sLogFacility, sLogLevel, | |
165 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 166 | #ifdef KRB4 |
5260325f | 167 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 168 | #endif |
169 | #ifdef AFS | |
5260325f | 170 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 171 | #endif |
172 | #ifdef SKEY | |
5260325f | 173 | sSkeyAuthentication, |
8efc0c15 | 174 | #endif |
5260325f | 175 | sPasswordAuthentication, sListenAddress, |
176 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, | |
177 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
178 | sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
1d1ffb87 | 179 | sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile, |
180 | sGatewayPorts, sDSAAuthentication | |
8efc0c15 | 181 | } ServerOpCodes; |
182 | ||
183 | /* Textual representation of the tokens. */ | |
5260325f | 184 | static struct { |
185 | const char *name; | |
186 | ServerOpCodes opcode; | |
187 | } keywords[] = { | |
188 | { "port", sPort }, | |
189 | { "hostkey", sHostKeyFile }, | |
1d1ffb87 | 190 | { "hostdsakey", sHostDSAKeyFile }, |
0fbe8c74 | 191 | { "pidfile", sPidFile }, |
5260325f | 192 | { "serverkeybits", sServerKeyBits }, |
193 | { "logingracetime", sLoginGraceTime }, | |
194 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
195 | { "permitrootlogin", sPermitRootLogin }, | |
196 | { "syslogfacility", sLogFacility }, | |
197 | { "loglevel", sLogLevel }, | |
198 | { "rhostsauthentication", sRhostsAuthentication }, | |
199 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
200 | { "rsaauthentication", sRSAAuthentication }, | |
1d1ffb87 | 201 | { "dsaauthentication", sDSAAuthentication }, |
8efc0c15 | 202 | #ifdef KRB4 |
5260325f | 203 | { "kerberosauthentication", sKerberosAuthentication }, |
204 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
205 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 206 | #endif |
207 | #ifdef AFS | |
5260325f | 208 | { "kerberostgtpassing", sKerberosTgtPassing }, |
209 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 210 | #endif |
5260325f | 211 | { "passwordauthentication", sPasswordAuthentication }, |
8efc0c15 | 212 | #ifdef SKEY |
5260325f | 213 | { "skeyauthentication", sSkeyAuthentication }, |
8efc0c15 | 214 | #endif |
5260325f | 215 | { "checkmail", sCheckMail }, |
216 | { "listenaddress", sListenAddress }, | |
217 | { "printmotd", sPrintMotd }, | |
218 | { "ignorerhosts", sIgnoreRhosts }, | |
219 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
220 | { "x11forwarding", sX11Forwarding }, | |
221 | { "x11displayoffset", sX11DisplayOffset }, | |
222 | { "strictmodes", sStrictModes }, | |
223 | { "permitemptypasswords", sEmptyPasswd }, | |
224 | { "uselogin", sUseLogin }, | |
225 | { "randomseed", sRandomSeedFile }, | |
226 | { "keepalive", sKeepAlives }, | |
227 | { "allowusers", sAllowUsers }, | |
228 | { "denyusers", sDenyUsers }, | |
229 | { "allowgroups", sAllowGroups }, | |
230 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 231 | { "ciphers", sCiphers }, |
232 | { "protocol", sProtocol }, | |
1d1ffb87 | 233 | { "gatewayports", sGatewayPorts }, |
5260325f | 234 | { NULL, 0 } |
8efc0c15 | 235 | }; |
236 | ||
aa3378df | 237 | /* |
238 | * Returns the number of the token pointed to by cp of length len. Never | |
239 | * returns if the token is not known. | |
240 | */ | |
8efc0c15 | 241 | |
6ae2364d | 242 | static ServerOpCodes |
5260325f | 243 | parse_token(const char *cp, const char *filename, |
244 | int linenum) | |
8efc0c15 | 245 | { |
5260325f | 246 | unsigned int i; |
8efc0c15 | 247 | |
5260325f | 248 | for (i = 0; keywords[i].name; i++) |
aa3378df | 249 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 250 | return keywords[i].opcode; |
8efc0c15 | 251 | |
5260325f | 252 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
253 | filename, linenum, cp); | |
254 | return sBadOption; | |
8efc0c15 | 255 | } |
256 | ||
48e671d5 | 257 | /* |
258 | * add listen address | |
259 | */ | |
6ae2364d | 260 | void |
48e671d5 | 261 | add_listen_addr(ServerOptions *options, char *addr) |
262 | { | |
263 | extern int IPv4or6; | |
264 | struct addrinfo hints, *ai, *aitop; | |
265 | char strport[NI_MAXSERV]; | |
266 | int gaierr; | |
267 | int i; | |
268 | ||
269 | if (options->num_ports == 0) | |
270 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
271 | for (i = 0; i < options->num_ports; i++) { | |
272 | memset(&hints, 0, sizeof(hints)); | |
273 | hints.ai_family = IPv4or6; | |
274 | hints.ai_socktype = SOCK_STREAM; | |
275 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
276 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
277 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
278 | fatal("bad addr or host: %s (%s)\n", | |
279 | addr ? addr : "<NULL>", | |
280 | gai_strerror(gaierr)); | |
281 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
282 | ; | |
283 | ai->ai_next = options->listen_addrs; | |
284 | options->listen_addrs = aitop; | |
285 | } | |
286 | } | |
287 | ||
8efc0c15 | 288 | /* Reads the server configuration file. */ |
289 | ||
6ae2364d | 290 | void |
5260325f | 291 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 292 | { |
5260325f | 293 | FILE *f; |
294 | char line[1024]; | |
295 | char *cp, **charptr; | |
296 | int linenum, *intptr, value; | |
297 | int bad_options = 0; | |
298 | ServerOpCodes opcode; | |
299 | ||
300 | f = fopen(filename, "r"); | |
301 | if (!f) { | |
302 | perror(filename); | |
8efc0c15 | 303 | exit(1); |
5260325f | 304 | } |
305 | linenum = 0; | |
306 | while (fgets(line, sizeof(line), f)) { | |
307 | linenum++; | |
308 | cp = line + strspn(line, WHITESPACE); | |
309 | if (!*cp || *cp == '#') | |
310 | continue; | |
311 | cp = strtok(cp, WHITESPACE); | |
5260325f | 312 | opcode = parse_token(cp, filename, linenum); |
313 | switch (opcode) { | |
314 | case sBadOption: | |
315 | bad_options++; | |
316 | continue; | |
317 | case sPort: | |
48e671d5 | 318 | /* ignore ports from configfile if cmdline specifies ports */ |
319 | if (options->ports_from_cmdline) | |
320 | continue; | |
321 | if (options->listen_addrs != NULL) | |
322 | fatal("%s line %d: ports must be specified before " | |
323 | "ListenAdress.\n", filename, linenum); | |
324 | if (options->num_ports >= MAX_PORTS) | |
325 | fatal("%s line %d: too many ports.\n", | |
6ae2364d | 326 | filename, linenum); |
48e671d5 | 327 | cp = strtok(NULL, WHITESPACE); |
328 | if (!cp) | |
329 | fatal("%s line %d: missing port number.\n", | |
330 | filename, linenum); | |
331 | options->ports[options->num_ports++] = atoi(cp); | |
332 | break; | |
333 | ||
334 | case sServerKeyBits: | |
335 | intptr = &options->server_key_bits; | |
5260325f | 336 | parse_int: |
337 | cp = strtok(NULL, WHITESPACE); | |
338 | if (!cp) { | |
339 | fprintf(stderr, "%s line %d: missing integer value.\n", | |
340 | filename, linenum); | |
341 | exit(1); | |
342 | } | |
343 | value = atoi(cp); | |
344 | if (*intptr == -1) | |
345 | *intptr = value; | |
346 | break; | |
347 | ||
5260325f | 348 | case sLoginGraceTime: |
349 | intptr = &options->login_grace_time; | |
350 | goto parse_int; | |
351 | ||
352 | case sKeyRegenerationTime: | |
353 | intptr = &options->key_regeneration_time; | |
354 | goto parse_int; | |
355 | ||
356 | case sListenAddress: | |
357 | cp = strtok(NULL, WHITESPACE); | |
48e671d5 | 358 | if (!cp) |
359 | fatal("%s line %d: missing inet addr.\n", | |
360 | filename, linenum); | |
361 | add_listen_addr(options, cp); | |
5260325f | 362 | break; |
363 | ||
364 | case sHostKeyFile: | |
1d1ffb87 | 365 | case sHostDSAKeyFile: |
e78a59f5 | 366 | charptr = (opcode == sHostKeyFile ) ? |
1d1ffb87 | 367 | &options->host_key_file : &options->host_dsa_key_file; |
5260325f | 368 | cp = strtok(NULL, WHITESPACE); |
369 | if (!cp) { | |
370 | fprintf(stderr, "%s line %d: missing file name.\n", | |
0fbe8c74 | 371 | filename, linenum); |
372 | exit(1); | |
373 | } | |
374 | if (*charptr == NULL) | |
375 | *charptr = tilde_expand_filename(cp, getuid()); | |
376 | break; | |
377 | ||
378 | case sPidFile: | |
379 | charptr = &options->pid_file; | |
380 | cp = strtok(NULL, WHITESPACE); | |
381 | if (!cp) { | |
382 | fprintf(stderr, "%s line %d: missing file name.\n", | |
383 | filename, linenum); | |
5260325f | 384 | exit(1); |
385 | } | |
386 | if (*charptr == NULL) | |
387 | *charptr = tilde_expand_filename(cp, getuid()); | |
388 | break; | |
389 | ||
390 | case sRandomSeedFile: | |
391 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
392 | filename, linenum); | |
393 | cp = strtok(NULL, WHITESPACE); | |
394 | break; | |
395 | ||
396 | case sPermitRootLogin: | |
397 | intptr = &options->permit_root_login; | |
398 | cp = strtok(NULL, WHITESPACE); | |
399 | if (!cp) { | |
400 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", | |
401 | filename, linenum); | |
402 | exit(1); | |
403 | } | |
404 | if (strcmp(cp, "without-password") == 0) | |
405 | value = 2; | |
406 | else if (strcmp(cp, "yes") == 0) | |
407 | value = 1; | |
408 | else if (strcmp(cp, "no") == 0) | |
409 | value = 0; | |
410 | else { | |
411 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
412 | filename, linenum, cp); | |
413 | exit(1); | |
414 | } | |
415 | if (*intptr == -1) | |
416 | *intptr = value; | |
417 | break; | |
418 | ||
419 | case sIgnoreRhosts: | |
420 | intptr = &options->ignore_rhosts; | |
421 | parse_flag: | |
422 | cp = strtok(NULL, WHITESPACE); | |
423 | if (!cp) { | |
424 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", | |
425 | filename, linenum); | |
426 | exit(1); | |
427 | } | |
428 | if (strcmp(cp, "yes") == 0) | |
429 | value = 1; | |
430 | else if (strcmp(cp, "no") == 0) | |
431 | value = 0; | |
432 | else { | |
433 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
434 | filename, linenum, cp); | |
435 | exit(1); | |
436 | } | |
437 | if (*intptr == -1) | |
438 | *intptr = value; | |
439 | break; | |
440 | ||
441 | case sIgnoreUserKnownHosts: | |
442 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 443 | goto parse_flag; |
5260325f | 444 | |
445 | case sRhostsAuthentication: | |
446 | intptr = &options->rhosts_authentication; | |
447 | goto parse_flag; | |
448 | ||
449 | case sRhostsRSAAuthentication: | |
450 | intptr = &options->rhosts_rsa_authentication; | |
451 | goto parse_flag; | |
452 | ||
453 | case sRSAAuthentication: | |
454 | intptr = &options->rsa_authentication; | |
455 | goto parse_flag; | |
456 | ||
1d1ffb87 | 457 | case sDSAAuthentication: |
458 | intptr = &options->dsa_authentication; | |
459 | goto parse_flag; | |
460 | ||
8efc0c15 | 461 | #ifdef KRB4 |
5260325f | 462 | case sKerberosAuthentication: |
463 | intptr = &options->kerberos_authentication; | |
464 | goto parse_flag; | |
465 | ||
466 | case sKerberosOrLocalPasswd: | |
467 | intptr = &options->kerberos_or_local_passwd; | |
468 | goto parse_flag; | |
469 | ||
470 | case sKerberosTicketCleanup: | |
471 | intptr = &options->kerberos_ticket_cleanup; | |
472 | goto parse_flag; | |
8efc0c15 | 473 | #endif |
5260325f | 474 | |
8efc0c15 | 475 | #ifdef AFS |
5260325f | 476 | case sKerberosTgtPassing: |
477 | intptr = &options->kerberos_tgt_passing; | |
478 | goto parse_flag; | |
8efc0c15 | 479 | |
5260325f | 480 | case sAFSTokenPassing: |
481 | intptr = &options->afs_token_passing; | |
482 | goto parse_flag; | |
8efc0c15 | 483 | #endif |
484 | ||
5260325f | 485 | case sPasswordAuthentication: |
486 | intptr = &options->password_authentication; | |
487 | goto parse_flag; | |
8efc0c15 | 488 | |
5260325f | 489 | case sCheckMail: |
490 | intptr = &options->check_mail; | |
491 | goto parse_flag; | |
8efc0c15 | 492 | |
493 | #ifdef SKEY | |
5260325f | 494 | case sSkeyAuthentication: |
495 | intptr = &options->skey_authentication; | |
496 | goto parse_flag; | |
8efc0c15 | 497 | #endif |
498 | ||
5260325f | 499 | case sPrintMotd: |
500 | intptr = &options->print_motd; | |
501 | goto parse_flag; | |
502 | ||
503 | case sX11Forwarding: | |
504 | intptr = &options->x11_forwarding; | |
505 | goto parse_flag; | |
506 | ||
507 | case sX11DisplayOffset: | |
508 | intptr = &options->x11_display_offset; | |
509 | goto parse_int; | |
510 | ||
511 | case sStrictModes: | |
512 | intptr = &options->strict_modes; | |
513 | goto parse_flag; | |
514 | ||
515 | case sKeepAlives: | |
516 | intptr = &options->keepalives; | |
517 | goto parse_flag; | |
518 | ||
519 | case sEmptyPasswd: | |
520 | intptr = &options->permit_empty_passwd; | |
521 | goto parse_flag; | |
522 | ||
523 | case sUseLogin: | |
524 | intptr = &options->use_login; | |
525 | goto parse_flag; | |
526 | ||
1d1ffb87 | 527 | case sGatewayPorts: |
528 | intptr = &options->gateway_ports; | |
529 | goto parse_flag; | |
530 | ||
5260325f | 531 | case sLogFacility: |
532 | intptr = (int *) &options->log_facility; | |
533 | cp = strtok(NULL, WHITESPACE); | |
534 | value = log_facility_number(cp); | |
535 | if (value == (SyslogFacility) - 1) | |
536 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
a8be9f80 | 537 | filename, linenum, cp ? cp : "<NONE>"); |
5260325f | 538 | if (*intptr == -1) |
539 | *intptr = (SyslogFacility) value; | |
540 | break; | |
541 | ||
542 | case sLogLevel: | |
543 | intptr = (int *) &options->log_level; | |
544 | cp = strtok(NULL, WHITESPACE); | |
545 | value = log_level_number(cp); | |
546 | if (value == (LogLevel) - 1) | |
547 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
a8be9f80 | 548 | filename, linenum, cp ? cp : "<NONE>"); |
5260325f | 549 | if (*intptr == -1) |
550 | *intptr = (LogLevel) value; | |
551 | break; | |
552 | ||
553 | case sAllowUsers: | |
554 | while ((cp = strtok(NULL, WHITESPACE))) { | |
a8be9f80 | 555 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
556 | fatal("%s line %d: too many allow users.\n", | |
557 | filename, linenum); | |
5260325f | 558 | options->allow_users[options->num_allow_users++] = xstrdup(cp); |
559 | } | |
560 | break; | |
561 | ||
562 | case sDenyUsers: | |
563 | while ((cp = strtok(NULL, WHITESPACE))) { | |
a8be9f80 | 564 | if (options->num_deny_users >= MAX_DENY_USERS) |
565 | fatal( "%s line %d: too many deny users.\n", | |
566 | filename, linenum); | |
5260325f | 567 | options->deny_users[options->num_deny_users++] = xstrdup(cp); |
568 | } | |
569 | break; | |
570 | ||
571 | case sAllowGroups: | |
572 | while ((cp = strtok(NULL, WHITESPACE))) { | |
a8be9f80 | 573 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
574 | fatal("%s line %d: too many allow groups.\n", | |
575 | filename, linenum); | |
5260325f | 576 | options->allow_groups[options->num_allow_groups++] = xstrdup(cp); |
577 | } | |
578 | break; | |
579 | ||
580 | case sDenyGroups: | |
581 | while ((cp = strtok(NULL, WHITESPACE))) { | |
a8be9f80 | 582 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
583 | fatal("%s line %d: too many deny groups.\n", | |
584 | filename, linenum); | |
5260325f | 585 | options->deny_groups[options->num_deny_groups++] = xstrdup(cp); |
586 | } | |
587 | break; | |
588 | ||
a8be9f80 | 589 | case sCiphers: |
590 | cp = strtok(NULL, WHITESPACE); | |
591 | if (!ciphers_valid(cp)) | |
592 | fatal("%s line %d: Bad cipher spec '%s'.", | |
593 | filename, linenum, cp ? cp : "<NONE>"); | |
594 | if (options->ciphers == NULL) | |
595 | options->ciphers = xstrdup(cp); | |
596 | break; | |
597 | ||
598 | case sProtocol: | |
599 | intptr = &options->protocol; | |
600 | cp = strtok(NULL, WHITESPACE); | |
601 | value = proto_spec(cp); | |
602 | if (value == SSH_PROTO_UNKNOWN) | |
603 | fatal("%s line %d: Bad protocol spec '%s'.", | |
604 | filename, linenum, cp ? cp : "<NONE>"); | |
605 | if (*intptr == SSH_PROTO_UNKNOWN) | |
606 | *intptr = value; | |
607 | break; | |
608 | ||
5260325f | 609 | default: |
610 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
611 | filename, linenum, cp, opcode); | |
612 | exit(1); | |
8efc0c15 | 613 | } |
5260325f | 614 | if (strtok(NULL, WHITESPACE) != NULL) { |
615 | fprintf(stderr, "%s line %d: garbage at end of line.\n", | |
616 | filename, linenum); | |
617 | exit(1); | |
8efc0c15 | 618 | } |
8efc0c15 | 619 | } |
5260325f | 620 | fclose(f); |
621 | if (bad_options > 0) { | |
622 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
623 | filename, bad_options); | |
624 | exit(1); | |
8efc0c15 | 625 | } |
8efc0c15 | 626 | } |