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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" | |
c345cf9d | 15 | RCSID("$OpenBSD: servconf.c,v 1.50 2000/07/22 09:14:36 markus Exp $"); |
8efc0c15 | 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; | |
fa649821 | 47 | options->xauth_location = NULL; |
5260325f | 48 | options->strict_modes = -1; |
49 | options->keepalives = -1; | |
50 | options->log_facility = (SyslogFacility) - 1; | |
51 | options->log_level = (LogLevel) - 1; | |
52 | options->rhosts_authentication = -1; | |
53 | options->rhosts_rsa_authentication = -1; | |
54 | options->rsa_authentication = -1; | |
1d1ffb87 | 55 | options->dsa_authentication = -1; |
8efc0c15 | 56 | #ifdef KRB4 |
5260325f | 57 | options->kerberos_authentication = -1; |
58 | options->kerberos_or_local_passwd = -1; | |
59 | options->kerberos_ticket_cleanup = -1; | |
8efc0c15 | 60 | #endif |
61 | #ifdef AFS | |
5260325f | 62 | options->kerberos_tgt_passing = -1; |
63 | options->afs_token_passing = -1; | |
8efc0c15 | 64 | #endif |
5260325f | 65 | options->password_authentication = -1; |
8efc0c15 | 66 | #ifdef SKEY |
5260325f | 67 | options->skey_authentication = -1; |
8efc0c15 | 68 | #endif |
5260325f | 69 | options->permit_empty_passwd = -1; |
70 | options->use_login = -1; | |
71 | options->num_allow_users = 0; | |
72 | options->num_deny_users = 0; | |
73 | options->num_allow_groups = 0; | |
74 | options->num_deny_groups = 0; | |
a8be9f80 | 75 | options->ciphers = NULL; |
76 | options->protocol = SSH_PROTO_UNKNOWN; | |
1d1ffb87 | 77 | options->gateway_ports = -1; |
38c295d6 | 78 | options->num_subsystems = 0; |
c345cf9d | 79 | options->max_startups_begin = -1; |
80 | options->max_startups_rate = -1; | |
089fbbd2 | 81 | options->max_startups = -1; |
8efc0c15 | 82 | } |
83 | ||
6ae2364d | 84 | void |
5260325f | 85 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 86 | { |
48e671d5 | 87 | if (options->num_ports == 0) |
88 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
89 | if (options->listen_addrs == NULL) | |
90 | add_listen_addr(options, NULL); | |
5260325f | 91 | if (options->host_key_file == NULL) |
92 | options->host_key_file = HOST_KEY_FILE; | |
1d1ffb87 | 93 | if (options->host_dsa_key_file == NULL) |
94 | options->host_dsa_key_file = HOST_DSA_KEY_FILE; | |
0fbe8c74 | 95 | if (options->pid_file == NULL) |
96 | options->pid_file = SSH_DAEMON_PID_FILE; | |
5260325f | 97 | if (options->server_key_bits == -1) |
98 | options->server_key_bits = 768; | |
99 | if (options->login_grace_time == -1) | |
100 | options->login_grace_time = 600; | |
101 | if (options->key_regeneration_time == -1) | |
102 | options->key_regeneration_time = 3600; | |
103 | if (options->permit_root_login == -1) | |
104 | options->permit_root_login = 1; /* yes */ | |
105 | if (options->ignore_rhosts == -1) | |
c8d54615 | 106 | options->ignore_rhosts = 1; |
5260325f | 107 | if (options->ignore_user_known_hosts == -1) |
108 | options->ignore_user_known_hosts = 0; | |
109 | if (options->check_mail == -1) | |
110 | options->check_mail = 0; | |
111 | if (options->print_motd == -1) | |
112 | options->print_motd = 1; | |
113 | if (options->x11_forwarding == -1) | |
c8d54615 | 114 | options->x11_forwarding = 0; |
5260325f | 115 | if (options->x11_display_offset == -1) |
c8d54615 | 116 | options->x11_display_offset = 10; |
fa649821 | 117 | #ifdef XAUTH_PATH |
118 | if (options->xauth_location == NULL) | |
119 | options->xauth_location = XAUTH_PATH; | |
120 | #endif /* XAUTH_PATH */ | |
5260325f | 121 | if (options->strict_modes == -1) |
122 | options->strict_modes = 1; | |
123 | if (options->keepalives == -1) | |
124 | options->keepalives = 1; | |
125 | if (options->log_facility == (SyslogFacility) (-1)) | |
126 | options->log_facility = SYSLOG_FACILITY_AUTH; | |
127 | if (options->log_level == (LogLevel) (-1)) | |
128 | options->log_level = SYSLOG_LEVEL_INFO; | |
129 | if (options->rhosts_authentication == -1) | |
130 | options->rhosts_authentication = 0; | |
131 | if (options->rhosts_rsa_authentication == -1) | |
c8d54615 | 132 | options->rhosts_rsa_authentication = 0; |
5260325f | 133 | if (options->rsa_authentication == -1) |
134 | options->rsa_authentication = 1; | |
1d1ffb87 | 135 | if (options->dsa_authentication == -1) |
136 | options->dsa_authentication = 1; | |
8efc0c15 | 137 | #ifdef KRB4 |
5260325f | 138 | if (options->kerberos_authentication == -1) |
139 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); | |
140 | if (options->kerberos_or_local_passwd == -1) | |
141 | options->kerberos_or_local_passwd = 1; | |
142 | if (options->kerberos_ticket_cleanup == -1) | |
143 | options->kerberos_ticket_cleanup = 1; | |
8efc0c15 | 144 | #endif /* KRB4 */ |
145 | #ifdef AFS | |
5260325f | 146 | if (options->kerberos_tgt_passing == -1) |
147 | options->kerberos_tgt_passing = 0; | |
148 | if (options->afs_token_passing == -1) | |
149 | options->afs_token_passing = k_hasafs(); | |
8efc0c15 | 150 | #endif /* AFS */ |
5260325f | 151 | if (options->password_authentication == -1) |
152 | options->password_authentication = 1; | |
8efc0c15 | 153 | #ifdef SKEY |
5260325f | 154 | if (options->skey_authentication == -1) |
155 | options->skey_authentication = 1; | |
8efc0c15 | 156 | #endif |
5260325f | 157 | if (options->permit_empty_passwd == -1) |
c8d54615 | 158 | options->permit_empty_passwd = 0; |
5260325f | 159 | if (options->use_login == -1) |
160 | options->use_login = 0; | |
a8be9f80 | 161 | if (options->protocol == SSH_PROTO_UNKNOWN) |
a306f2dd | 162 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; |
1d1ffb87 | 163 | if (options->gateway_ports == -1) |
164 | options->gateway_ports = 0; | |
089fbbd2 | 165 | if (options->max_startups == -1) |
166 | options->max_startups = 10; | |
c345cf9d | 167 | if (options->max_startups_rate == -1) |
168 | options->max_startups_rate = 100; /* 100% */ | |
169 | if (options->max_startups_begin == -1) | |
170 | options->max_startups_begin = options->max_startups; | |
8efc0c15 | 171 | } |
172 | ||
8efc0c15 | 173 | /* Keyword tokens. */ |
5260325f | 174 | typedef enum { |
175 | sBadOption, /* == unknown option */ | |
176 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
177 | sPermitRootLogin, sLogFacility, sLogLevel, | |
178 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 179 | #ifdef KRB4 |
5260325f | 180 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 181 | #endif |
182 | #ifdef AFS | |
5260325f | 183 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 184 | #endif |
185 | #ifdef SKEY | |
5260325f | 186 | sSkeyAuthentication, |
8efc0c15 | 187 | #endif |
5260325f | 188 | sPasswordAuthentication, sListenAddress, |
189 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, | |
190 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
191 | sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
1d1ffb87 | 192 | sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile, |
089fbbd2 | 193 | sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups |
8efc0c15 | 194 | } ServerOpCodes; |
195 | ||
196 | /* Textual representation of the tokens. */ | |
5260325f | 197 | static struct { |
198 | const char *name; | |
199 | ServerOpCodes opcode; | |
200 | } keywords[] = { | |
201 | { "port", sPort }, | |
202 | { "hostkey", sHostKeyFile }, | |
1d1ffb87 | 203 | { "hostdsakey", sHostDSAKeyFile }, |
0fbe8c74 | 204 | { "pidfile", sPidFile }, |
5260325f | 205 | { "serverkeybits", sServerKeyBits }, |
206 | { "logingracetime", sLoginGraceTime }, | |
207 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
208 | { "permitrootlogin", sPermitRootLogin }, | |
209 | { "syslogfacility", sLogFacility }, | |
210 | { "loglevel", sLogLevel }, | |
211 | { "rhostsauthentication", sRhostsAuthentication }, | |
212 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
213 | { "rsaauthentication", sRSAAuthentication }, | |
1d1ffb87 | 214 | { "dsaauthentication", sDSAAuthentication }, |
8efc0c15 | 215 | #ifdef KRB4 |
5260325f | 216 | { "kerberosauthentication", sKerberosAuthentication }, |
217 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
218 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 219 | #endif |
220 | #ifdef AFS | |
5260325f | 221 | { "kerberostgtpassing", sKerberosTgtPassing }, |
222 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 223 | #endif |
5260325f | 224 | { "passwordauthentication", sPasswordAuthentication }, |
8efc0c15 | 225 | #ifdef SKEY |
5260325f | 226 | { "skeyauthentication", sSkeyAuthentication }, |
8efc0c15 | 227 | #endif |
5260325f | 228 | { "checkmail", sCheckMail }, |
229 | { "listenaddress", sListenAddress }, | |
230 | { "printmotd", sPrintMotd }, | |
231 | { "ignorerhosts", sIgnoreRhosts }, | |
232 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
233 | { "x11forwarding", sX11Forwarding }, | |
234 | { "x11displayoffset", sX11DisplayOffset }, | |
fa649821 | 235 | { "xauthlocation", sXAuthLocation }, |
5260325f | 236 | { "strictmodes", sStrictModes }, |
237 | { "permitemptypasswords", sEmptyPasswd }, | |
238 | { "uselogin", sUseLogin }, | |
239 | { "randomseed", sRandomSeedFile }, | |
240 | { "keepalive", sKeepAlives }, | |
241 | { "allowusers", sAllowUsers }, | |
242 | { "denyusers", sDenyUsers }, | |
243 | { "allowgroups", sAllowGroups }, | |
244 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 245 | { "ciphers", sCiphers }, |
246 | { "protocol", sProtocol }, | |
1d1ffb87 | 247 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 248 | { "subsystem", sSubsystem }, |
089fbbd2 | 249 | { "maxstartups", sMaxStartups }, |
5260325f | 250 | { NULL, 0 } |
8efc0c15 | 251 | }; |
252 | ||
aa3378df | 253 | /* |
254 | * Returns the number of the token pointed to by cp of length len. Never | |
255 | * returns if the token is not known. | |
256 | */ | |
8efc0c15 | 257 | |
6ae2364d | 258 | static ServerOpCodes |
5260325f | 259 | parse_token(const char *cp, const char *filename, |
260 | int linenum) | |
8efc0c15 | 261 | { |
5260325f | 262 | unsigned int i; |
8efc0c15 | 263 | |
5260325f | 264 | for (i = 0; keywords[i].name; i++) |
aa3378df | 265 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 266 | return keywords[i].opcode; |
8efc0c15 | 267 | |
5260325f | 268 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
269 | filename, linenum, cp); | |
270 | return sBadOption; | |
8efc0c15 | 271 | } |
272 | ||
48e671d5 | 273 | /* |
274 | * add listen address | |
275 | */ | |
6ae2364d | 276 | void |
48e671d5 | 277 | add_listen_addr(ServerOptions *options, char *addr) |
278 | { | |
279 | extern int IPv4or6; | |
280 | struct addrinfo hints, *ai, *aitop; | |
281 | char strport[NI_MAXSERV]; | |
282 | int gaierr; | |
283 | int i; | |
284 | ||
285 | if (options->num_ports == 0) | |
286 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
287 | for (i = 0; i < options->num_ports; i++) { | |
288 | memset(&hints, 0, sizeof(hints)); | |
289 | hints.ai_family = IPv4or6; | |
290 | hints.ai_socktype = SOCK_STREAM; | |
291 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
292 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
293 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
294 | fatal("bad addr or host: %s (%s)\n", | |
295 | addr ? addr : "<NULL>", | |
296 | gai_strerror(gaierr)); | |
297 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
298 | ; | |
299 | ai->ai_next = options->listen_addrs; | |
300 | options->listen_addrs = aitop; | |
301 | } | |
302 | } | |
303 | ||
8efc0c15 | 304 | /* Reads the server configuration file. */ |
305 | ||
6ae2364d | 306 | void |
5260325f | 307 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 308 | { |
5260325f | 309 | FILE *f; |
310 | char line[1024]; | |
089fbbd2 | 311 | char *cp, **charptr, *arg; |
5260325f | 312 | int linenum, *intptr, value; |
313 | int bad_options = 0; | |
314 | ServerOpCodes opcode; | |
38c295d6 | 315 | int i; |
5260325f | 316 | |
317 | f = fopen(filename, "r"); | |
318 | if (!f) { | |
319 | perror(filename); | |
8efc0c15 | 320 | exit(1); |
5260325f | 321 | } |
322 | linenum = 0; | |
323 | while (fgets(line, sizeof(line), f)) { | |
324 | linenum++; | |
704b1659 | 325 | cp = line; |
326 | arg = strdelim(&cp); | |
327 | /* Ignore leading whitespace */ | |
328 | if (*arg == '\0') | |
329 | arg = strdelim(&cp); | |
330 | if (!*arg || *arg == '#') | |
5260325f | 331 | continue; |
089fbbd2 | 332 | opcode = parse_token(arg, filename, linenum); |
5260325f | 333 | switch (opcode) { |
334 | case sBadOption: | |
335 | bad_options++; | |
336 | continue; | |
337 | case sPort: | |
48e671d5 | 338 | /* ignore ports from configfile if cmdline specifies ports */ |
339 | if (options->ports_from_cmdline) | |
340 | continue; | |
341 | if (options->listen_addrs != NULL) | |
342 | fatal("%s line %d: ports must be specified before " | |
343 | "ListenAdress.\n", filename, linenum); | |
344 | if (options->num_ports >= MAX_PORTS) | |
345 | fatal("%s line %d: too many ports.\n", | |
6ae2364d | 346 | filename, linenum); |
704b1659 | 347 | arg = strdelim(&cp); |
089fbbd2 | 348 | if (!arg || *arg == '\0') |
48e671d5 | 349 | fatal("%s line %d: missing port number.\n", |
350 | filename, linenum); | |
089fbbd2 | 351 | options->ports[options->num_ports++] = atoi(arg); |
48e671d5 | 352 | break; |
353 | ||
354 | case sServerKeyBits: | |
355 | intptr = &options->server_key_bits; | |
5260325f | 356 | parse_int: |
704b1659 | 357 | arg = strdelim(&cp); |
089fbbd2 | 358 | if (!arg || *arg == '\0') { |
5260325f | 359 | fprintf(stderr, "%s line %d: missing integer value.\n", |
360 | filename, linenum); | |
361 | exit(1); | |
362 | } | |
089fbbd2 | 363 | value = atoi(arg); |
5260325f | 364 | if (*intptr == -1) |
365 | *intptr = value; | |
366 | break; | |
367 | ||
5260325f | 368 | case sLoginGraceTime: |
369 | intptr = &options->login_grace_time; | |
370 | goto parse_int; | |
371 | ||
372 | case sKeyRegenerationTime: | |
373 | intptr = &options->key_regeneration_time; | |
374 | goto parse_int; | |
375 | ||
376 | case sListenAddress: | |
704b1659 | 377 | arg = strdelim(&cp); |
089fbbd2 | 378 | if (!arg || *arg == '\0') |
48e671d5 | 379 | fatal("%s line %d: missing inet addr.\n", |
380 | filename, linenum); | |
089fbbd2 | 381 | add_listen_addr(options, arg); |
5260325f | 382 | break; |
383 | ||
384 | case sHostKeyFile: | |
1d1ffb87 | 385 | case sHostDSAKeyFile: |
e78a59f5 | 386 | charptr = (opcode == sHostKeyFile ) ? |
1d1ffb87 | 387 | &options->host_key_file : &options->host_dsa_key_file; |
fa649821 | 388 | parse_filename: |
704b1659 | 389 | arg = strdelim(&cp); |
089fbbd2 | 390 | if (!arg || *arg == '\0') { |
5260325f | 391 | fprintf(stderr, "%s line %d: missing file name.\n", |
0fbe8c74 | 392 | filename, linenum); |
393 | exit(1); | |
394 | } | |
395 | if (*charptr == NULL) | |
089fbbd2 | 396 | *charptr = tilde_expand_filename(arg, getuid()); |
0fbe8c74 | 397 | break; |
398 | ||
399 | case sPidFile: | |
400 | charptr = &options->pid_file; | |
fa649821 | 401 | goto parse_filename; |
5260325f | 402 | |
403 | case sRandomSeedFile: | |
404 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
405 | filename, linenum); | |
704b1659 | 406 | arg = strdelim(&cp); |
5260325f | 407 | break; |
408 | ||
409 | case sPermitRootLogin: | |
410 | intptr = &options->permit_root_login; | |
704b1659 | 411 | arg = strdelim(&cp); |
089fbbd2 | 412 | if (!arg || *arg == '\0') { |
5260325f | 413 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
414 | filename, linenum); | |
415 | exit(1); | |
416 | } | |
089fbbd2 | 417 | if (strcmp(arg, "without-password") == 0) |
5260325f | 418 | value = 2; |
089fbbd2 | 419 | else if (strcmp(arg, "yes") == 0) |
5260325f | 420 | value = 1; |
089fbbd2 | 421 | else if (strcmp(arg, "no") == 0) |
5260325f | 422 | value = 0; |
423 | else { | |
424 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
089fbbd2 | 425 | filename, linenum, arg); |
5260325f | 426 | exit(1); |
427 | } | |
428 | if (*intptr == -1) | |
429 | *intptr = value; | |
430 | break; | |
431 | ||
432 | case sIgnoreRhosts: | |
433 | intptr = &options->ignore_rhosts; | |
434 | parse_flag: | |
704b1659 | 435 | arg = strdelim(&cp); |
089fbbd2 | 436 | if (!arg || *arg == '\0') { |
5260325f | 437 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
438 | filename, linenum); | |
439 | exit(1); | |
440 | } | |
089fbbd2 | 441 | if (strcmp(arg, "yes") == 0) |
5260325f | 442 | value = 1; |
089fbbd2 | 443 | else if (strcmp(arg, "no") == 0) |
5260325f | 444 | value = 0; |
445 | else { | |
446 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
089fbbd2 | 447 | filename, linenum, arg); |
5260325f | 448 | exit(1); |
449 | } | |
450 | if (*intptr == -1) | |
451 | *intptr = value; | |
452 | break; | |
453 | ||
454 | case sIgnoreUserKnownHosts: | |
455 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 456 | goto parse_flag; |
5260325f | 457 | |
458 | case sRhostsAuthentication: | |
459 | intptr = &options->rhosts_authentication; | |
460 | goto parse_flag; | |
461 | ||
462 | case sRhostsRSAAuthentication: | |
463 | intptr = &options->rhosts_rsa_authentication; | |
464 | goto parse_flag; | |
465 | ||
466 | case sRSAAuthentication: | |
467 | intptr = &options->rsa_authentication; | |
468 | goto parse_flag; | |
469 | ||
1d1ffb87 | 470 | case sDSAAuthentication: |
471 | intptr = &options->dsa_authentication; | |
472 | goto parse_flag; | |
473 | ||
8efc0c15 | 474 | #ifdef KRB4 |
5260325f | 475 | case sKerberosAuthentication: |
476 | intptr = &options->kerberos_authentication; | |
477 | goto parse_flag; | |
478 | ||
479 | case sKerberosOrLocalPasswd: | |
480 | intptr = &options->kerberos_or_local_passwd; | |
481 | goto parse_flag; | |
482 | ||
483 | case sKerberosTicketCleanup: | |
484 | intptr = &options->kerberos_ticket_cleanup; | |
485 | goto parse_flag; | |
8efc0c15 | 486 | #endif |
5260325f | 487 | |
8efc0c15 | 488 | #ifdef AFS |
5260325f | 489 | case sKerberosTgtPassing: |
490 | intptr = &options->kerberos_tgt_passing; | |
491 | goto parse_flag; | |
8efc0c15 | 492 | |
5260325f | 493 | case sAFSTokenPassing: |
494 | intptr = &options->afs_token_passing; | |
495 | goto parse_flag; | |
8efc0c15 | 496 | #endif |
497 | ||
5260325f | 498 | case sPasswordAuthentication: |
499 | intptr = &options->password_authentication; | |
500 | goto parse_flag; | |
8efc0c15 | 501 | |
5260325f | 502 | case sCheckMail: |
503 | intptr = &options->check_mail; | |
504 | goto parse_flag; | |
8efc0c15 | 505 | |
506 | #ifdef SKEY | |
5260325f | 507 | case sSkeyAuthentication: |
508 | intptr = &options->skey_authentication; | |
509 | goto parse_flag; | |
8efc0c15 | 510 | #endif |
511 | ||
5260325f | 512 | case sPrintMotd: |
513 | intptr = &options->print_motd; | |
514 | goto parse_flag; | |
515 | ||
516 | case sX11Forwarding: | |
517 | intptr = &options->x11_forwarding; | |
518 | goto parse_flag; | |
519 | ||
520 | case sX11DisplayOffset: | |
521 | intptr = &options->x11_display_offset; | |
522 | goto parse_int; | |
523 | ||
fa649821 | 524 | case sXAuthLocation: |
525 | charptr = &options->xauth_location; | |
526 | goto parse_filename; | |
527 | ||
5260325f | 528 | case sStrictModes: |
529 | intptr = &options->strict_modes; | |
530 | goto parse_flag; | |
531 | ||
532 | case sKeepAlives: | |
533 | intptr = &options->keepalives; | |
534 | goto parse_flag; | |
535 | ||
536 | case sEmptyPasswd: | |
537 | intptr = &options->permit_empty_passwd; | |
538 | goto parse_flag; | |
539 | ||
540 | case sUseLogin: | |
541 | intptr = &options->use_login; | |
542 | goto parse_flag; | |
543 | ||
1d1ffb87 | 544 | case sGatewayPorts: |
545 | intptr = &options->gateway_ports; | |
546 | goto parse_flag; | |
547 | ||
5260325f | 548 | case sLogFacility: |
549 | intptr = (int *) &options->log_facility; | |
704b1659 | 550 | arg = strdelim(&cp); |
089fbbd2 | 551 | value = log_facility_number(arg); |
5260325f | 552 | if (value == (SyslogFacility) - 1) |
553 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
089fbbd2 | 554 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 555 | if (*intptr == -1) |
556 | *intptr = (SyslogFacility) value; | |
557 | break; | |
558 | ||
559 | case sLogLevel: | |
560 | intptr = (int *) &options->log_level; | |
704b1659 | 561 | arg = strdelim(&cp); |
089fbbd2 | 562 | value = log_level_number(arg); |
5260325f | 563 | if (value == (LogLevel) - 1) |
564 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
089fbbd2 | 565 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 566 | if (*intptr == -1) |
567 | *intptr = (LogLevel) value; | |
568 | break; | |
569 | ||
570 | case sAllowUsers: | |
704b1659 | 571 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 572 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
573 | fatal("%s line %d: too many allow users.\n", | |
574 | filename, linenum); | |
089fbbd2 | 575 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
5260325f | 576 | } |
577 | break; | |
578 | ||
579 | case sDenyUsers: | |
704b1659 | 580 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 581 | if (options->num_deny_users >= MAX_DENY_USERS) |
582 | fatal( "%s line %d: too many deny users.\n", | |
583 | filename, linenum); | |
089fbbd2 | 584 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
5260325f | 585 | } |
586 | break; | |
587 | ||
588 | case sAllowGroups: | |
704b1659 | 589 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 590 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
591 | fatal("%s line %d: too many allow groups.\n", | |
592 | filename, linenum); | |
089fbbd2 | 593 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
5260325f | 594 | } |
595 | break; | |
596 | ||
597 | case sDenyGroups: | |
704b1659 | 598 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 599 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
600 | fatal("%s line %d: too many deny groups.\n", | |
601 | filename, linenum); | |
089fbbd2 | 602 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
5260325f | 603 | } |
604 | break; | |
605 | ||
a8be9f80 | 606 | case sCiphers: |
704b1659 | 607 | arg = strdelim(&cp); |
089fbbd2 | 608 | if (!arg || *arg == '\0') |
71276795 | 609 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 610 | if (!ciphers_valid(arg)) |
d0c832f3 | 611 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
089fbbd2 | 612 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 613 | if (options->ciphers == NULL) |
089fbbd2 | 614 | options->ciphers = xstrdup(arg); |
a8be9f80 | 615 | break; |
616 | ||
617 | case sProtocol: | |
618 | intptr = &options->protocol; | |
704b1659 | 619 | arg = strdelim(&cp); |
089fbbd2 | 620 | if (!arg || *arg == '\0') |
71276795 | 621 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 622 | value = proto_spec(arg); |
a8be9f80 | 623 | if (value == SSH_PROTO_UNKNOWN) |
624 | fatal("%s line %d: Bad protocol spec '%s'.", | |
089fbbd2 | 625 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 626 | if (*intptr == SSH_PROTO_UNKNOWN) |
627 | *intptr = value; | |
628 | break; | |
629 | ||
38c295d6 | 630 | case sSubsystem: |
631 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { | |
632 | fatal("%s line %d: too many subsystems defined.", | |
633 | filename, linenum); | |
634 | } | |
704b1659 | 635 | arg = strdelim(&cp); |
089fbbd2 | 636 | if (!arg || *arg == '\0') |
38c295d6 | 637 | fatal("%s line %d: Missing subsystem name.", |
638 | filename, linenum); | |
639 | for (i = 0; i < options->num_subsystems; i++) | |
089fbbd2 | 640 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
38c295d6 | 641 | fatal("%s line %d: Subsystem '%s' already defined.", |
089fbbd2 | 642 | filename, linenum, arg); |
643 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
704b1659 | 644 | arg = strdelim(&cp); |
089fbbd2 | 645 | if (!arg || *arg == '\0') |
38c295d6 | 646 | fatal("%s line %d: Missing subsystem command.", |
647 | filename, linenum); | |
089fbbd2 | 648 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
38c295d6 | 649 | options->num_subsystems++; |
650 | break; | |
651 | ||
089fbbd2 | 652 | case sMaxStartups: |
c345cf9d | 653 | arg = strdelim(&cp); |
654 | if (!arg || *arg == '\0') | |
655 | fatal("%s line %d: Missing MaxStartups spec.", | |
656 | filename, linenum); | |
657 | if (sscanf(arg, "%d:%d:%d", | |
658 | &options->max_startups_begin, | |
659 | &options->max_startups_rate, | |
660 | &options->max_startups) == 3) { | |
661 | if (options->max_startups_begin > | |
662 | options->max_startups || | |
663 | options->max_startups_rate > 100 || | |
664 | options->max_startups_rate < 1) | |
665 | fatal("%s line %d: Illegal MaxStartups spec.", | |
666 | filename, linenum); | |
667 | break; | |
668 | } | |
089fbbd2 | 669 | intptr = &options->max_startups; |
670 | goto parse_int; | |
671 | ||
5260325f | 672 | default: |
673 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
089fbbd2 | 674 | filename, linenum, arg, opcode); |
5260325f | 675 | exit(1); |
8efc0c15 | 676 | } |
704b1659 | 677 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
089fbbd2 | 678 | fprintf(stderr, |
679 | "%s line %d: garbage at end of line; \"%.200s\".\n", | |
680 | filename, linenum, arg); | |
5260325f | 681 | exit(1); |
8efc0c15 | 682 | } |
8efc0c15 | 683 | } |
5260325f | 684 | fclose(f); |
685 | if (bad_options > 0) { | |
686 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
687 | filename, bad_options); | |
688 | exit(1); | |
8efc0c15 | 689 | } |
8efc0c15 | 690 | } |