]>
Commit | Line | Data |
---|---|---|
8efc0c15 | 1 | /* |
5260325f | 2 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
3 | * All rights reserved | |
6ae2364d | 4 | * |
bcbf86ec | 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". | |
5260325f | 10 | */ |
8efc0c15 | 11 | |
12 | #include "includes.h" | |
eea39c02 | 13 | RCSID("$OpenBSD: servconf.c,v 1.57 2001/01/08 22:29:05 markus Exp $"); |
8efc0c15 | 14 | |
15 | #include "ssh.h" | |
16 | #include "servconf.h" | |
17 | #include "xmalloc.h" | |
a8be9f80 | 18 | #include "compat.h" |
8efc0c15 | 19 | |
48e671d5 | 20 | /* add listen address */ |
21 | void add_listen_addr(ServerOptions *options, char *addr); | |
22 | ||
8efc0c15 | 23 | /* Initializes the server options to their default values. */ |
24 | ||
6ae2364d | 25 | void |
5260325f | 26 | initialize_server_options(ServerOptions *options) |
8efc0c15 | 27 | { |
5260325f | 28 | memset(options, 0, sizeof(*options)); |
48e671d5 | 29 | options->num_ports = 0; |
30 | options->ports_from_cmdline = 0; | |
31 | options->listen_addrs = NULL; | |
fa08c86b | 32 | options->num_host_key_files = 0; |
0fbe8c74 | 33 | options->pid_file = NULL; |
5260325f | 34 | options->server_key_bits = -1; |
35 | options->login_grace_time = -1; | |
36 | options->key_regeneration_time = -1; | |
37 | options->permit_root_login = -1; | |
38 | options->ignore_rhosts = -1; | |
39 | options->ignore_user_known_hosts = -1; | |
40 | options->print_motd = -1; | |
41 | options->check_mail = -1; | |
42 | options->x11_forwarding = -1; | |
43 | options->x11_display_offset = -1; | |
fa649821 | 44 | options->xauth_location = NULL; |
5260325f | 45 | options->strict_modes = -1; |
46 | options->keepalives = -1; | |
47 | options->log_facility = (SyslogFacility) - 1; | |
48 | options->log_level = (LogLevel) - 1; | |
49 | options->rhosts_authentication = -1; | |
50 | options->rhosts_rsa_authentication = -1; | |
51 | options->rsa_authentication = -1; | |
fa08c86b | 52 | options->pubkey_authentication = -1; |
8efc0c15 | 53 | #ifdef KRB4 |
5260325f | 54 | options->kerberos_authentication = -1; |
55 | options->kerberos_or_local_passwd = -1; | |
56 | options->kerberos_ticket_cleanup = -1; | |
8efc0c15 | 57 | #endif |
58 | #ifdef AFS | |
5260325f | 59 | options->kerberos_tgt_passing = -1; |
60 | options->afs_token_passing = -1; | |
8efc0c15 | 61 | #endif |
5260325f | 62 | options->password_authentication = -1; |
94ec8c6b | 63 | options->kbd_interactive_authentication = -1; |
8efc0c15 | 64 | #ifdef SKEY |
5260325f | 65 | options->skey_authentication = -1; |
8efc0c15 | 66 | #endif |
5260325f | 67 | options->permit_empty_passwd = -1; |
68 | options->use_login = -1; | |
33de75a3 | 69 | options->allow_tcp_forwarding = -1; |
5260325f | 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; |
38c295d6 | 77 | options->num_subsystems = 0; |
c345cf9d | 78 | options->max_startups_begin = -1; |
79 | options->max_startups_rate = -1; | |
089fbbd2 | 80 | options->max_startups = -1; |
eea39c02 | 81 | options->banner = NULL; |
8efc0c15 | 82 | } |
83 | ||
6ae2364d | 84 | void |
5260325f | 85 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 86 | { |
fa08c86b | 87 | if (options->protocol == SSH_PROTO_UNKNOWN) |
88 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
89 | if (options->num_host_key_files == 0) { | |
90 | /* fill default hostkeys for protocols */ | |
91 | if (options->protocol & SSH_PROTO_1) | |
92 | options->host_key_files[options->num_host_key_files++] = HOST_KEY_FILE; | |
93 | if (options->protocol & SSH_PROTO_2) | |
94 | options->host_key_files[options->num_host_key_files++] = HOST_DSA_KEY_FILE; | |
95 | } | |
48e671d5 | 96 | if (options->num_ports == 0) |
97 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
98 | if (options->listen_addrs == NULL) | |
99 | add_listen_addr(options, NULL); | |
0fbe8c74 | 100 | if (options->pid_file == NULL) |
101 | options->pid_file = SSH_DAEMON_PID_FILE; | |
5260325f | 102 | if (options->server_key_bits == -1) |
103 | options->server_key_bits = 768; | |
104 | if (options->login_grace_time == -1) | |
105 | options->login_grace_time = 600; | |
106 | if (options->key_regeneration_time == -1) | |
107 | options->key_regeneration_time = 3600; | |
108 | if (options->permit_root_login == -1) | |
109 | options->permit_root_login = 1; /* yes */ | |
110 | if (options->ignore_rhosts == -1) | |
c8d54615 | 111 | options->ignore_rhosts = 1; |
5260325f | 112 | if (options->ignore_user_known_hosts == -1) |
113 | options->ignore_user_known_hosts = 0; | |
114 | if (options->check_mail == -1) | |
115 | options->check_mail = 0; | |
116 | if (options->print_motd == -1) | |
117 | options->print_motd = 1; | |
118 | if (options->x11_forwarding == -1) | |
c8d54615 | 119 | options->x11_forwarding = 0; |
5260325f | 120 | if (options->x11_display_offset == -1) |
c8d54615 | 121 | options->x11_display_offset = 10; |
fa649821 | 122 | #ifdef XAUTH_PATH |
123 | if (options->xauth_location == NULL) | |
124 | options->xauth_location = XAUTH_PATH; | |
125 | #endif /* XAUTH_PATH */ | |
5260325f | 126 | if (options->strict_modes == -1) |
127 | options->strict_modes = 1; | |
128 | if (options->keepalives == -1) | |
129 | options->keepalives = 1; | |
130 | if (options->log_facility == (SyslogFacility) (-1)) | |
131 | options->log_facility = SYSLOG_FACILITY_AUTH; | |
132 | if (options->log_level == (LogLevel) (-1)) | |
bbcf899f | 133 | options->log_level = SYSLOG_LEVEL_NOTICE; |
5260325f | 134 | if (options->rhosts_authentication == -1) |
135 | options->rhosts_authentication = 0; | |
136 | if (options->rhosts_rsa_authentication == -1) | |
c8d54615 | 137 | options->rhosts_rsa_authentication = 0; |
5260325f | 138 | if (options->rsa_authentication == -1) |
139 | options->rsa_authentication = 1; | |
fa08c86b | 140 | if (options->pubkey_authentication == -1) |
141 | options->pubkey_authentication = 1; | |
8efc0c15 | 142 | #ifdef KRB4 |
5260325f | 143 | if (options->kerberos_authentication == -1) |
144 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); | |
145 | if (options->kerberos_or_local_passwd == -1) | |
146 | options->kerberos_or_local_passwd = 1; | |
147 | if (options->kerberos_ticket_cleanup == -1) | |
148 | options->kerberos_ticket_cleanup = 1; | |
8efc0c15 | 149 | #endif /* KRB4 */ |
150 | #ifdef AFS | |
5260325f | 151 | if (options->kerberos_tgt_passing == -1) |
152 | options->kerberos_tgt_passing = 0; | |
153 | if (options->afs_token_passing == -1) | |
154 | options->afs_token_passing = k_hasafs(); | |
8efc0c15 | 155 | #endif /* AFS */ |
5260325f | 156 | if (options->password_authentication == -1) |
157 | options->password_authentication = 1; | |
94ec8c6b | 158 | if (options->kbd_interactive_authentication == -1) |
159 | options->kbd_interactive_authentication = 0; | |
8efc0c15 | 160 | #ifdef SKEY |
5260325f | 161 | if (options->skey_authentication == -1) |
162 | options->skey_authentication = 1; | |
8efc0c15 | 163 | #endif |
5260325f | 164 | if (options->permit_empty_passwd == -1) |
c8d54615 | 165 | options->permit_empty_passwd = 0; |
5260325f | 166 | if (options->use_login == -1) |
167 | options->use_login = 0; | |
33de75a3 | 168 | if (options->allow_tcp_forwarding == -1) |
169 | options->allow_tcp_forwarding = 1; | |
1d1ffb87 | 170 | if (options->gateway_ports == -1) |
171 | options->gateway_ports = 0; | |
089fbbd2 | 172 | if (options->max_startups == -1) |
173 | options->max_startups = 10; | |
c345cf9d | 174 | if (options->max_startups_rate == -1) |
175 | options->max_startups_rate = 100; /* 100% */ | |
176 | if (options->max_startups_begin == -1) | |
177 | options->max_startups_begin = options->max_startups; | |
8efc0c15 | 178 | } |
179 | ||
8efc0c15 | 180 | /* Keyword tokens. */ |
5260325f | 181 | typedef enum { |
182 | sBadOption, /* == unknown option */ | |
183 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
184 | sPermitRootLogin, sLogFacility, sLogLevel, | |
185 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 186 | #ifdef KRB4 |
5260325f | 187 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 188 | #endif |
189 | #ifdef AFS | |
5260325f | 190 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 191 | #endif |
192 | #ifdef SKEY | |
5260325f | 193 | sSkeyAuthentication, |
8efc0c15 | 194 | #endif |
94ec8c6b | 195 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, |
5260325f | 196 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, |
197 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
33de75a3 | 198 | sUseLogin, sAllowTcpForwarding, |
199 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
fa08c86b | 200 | sIgnoreUserKnownHosts, sCiphers, sProtocol, sPidFile, |
201 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups, | |
eea39c02 | 202 | sBanner |
8efc0c15 | 203 | } ServerOpCodes; |
204 | ||
205 | /* Textual representation of the tokens. */ | |
5260325f | 206 | static struct { |
207 | const char *name; | |
208 | ServerOpCodes opcode; | |
209 | } keywords[] = { | |
210 | { "port", sPort }, | |
211 | { "hostkey", sHostKeyFile }, | |
fa08c86b | 212 | { "hostdsakey", sHostKeyFile }, /* alias */ |
0fbe8c74 | 213 | { "pidfile", sPidFile }, |
5260325f | 214 | { "serverkeybits", sServerKeyBits }, |
215 | { "logingracetime", sLoginGraceTime }, | |
216 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
217 | { "permitrootlogin", sPermitRootLogin }, | |
218 | { "syslogfacility", sLogFacility }, | |
219 | { "loglevel", sLogLevel }, | |
220 | { "rhostsauthentication", sRhostsAuthentication }, | |
221 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
222 | { "rsaauthentication", sRSAAuthentication }, | |
fa08c86b | 223 | { "pubkeyauthentication", sPubkeyAuthentication }, |
224 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
8efc0c15 | 225 | #ifdef KRB4 |
5260325f | 226 | { "kerberosauthentication", sKerberosAuthentication }, |
227 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
228 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 229 | #endif |
230 | #ifdef AFS | |
5260325f | 231 | { "kerberostgtpassing", sKerberosTgtPassing }, |
232 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 233 | #endif |
5260325f | 234 | { "passwordauthentication", sPasswordAuthentication }, |
94ec8c6b | 235 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, |
8efc0c15 | 236 | #ifdef SKEY |
5260325f | 237 | { "skeyauthentication", sSkeyAuthentication }, |
8efc0c15 | 238 | #endif |
5260325f | 239 | { "checkmail", sCheckMail }, |
240 | { "listenaddress", sListenAddress }, | |
241 | { "printmotd", sPrintMotd }, | |
242 | { "ignorerhosts", sIgnoreRhosts }, | |
243 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
244 | { "x11forwarding", sX11Forwarding }, | |
245 | { "x11displayoffset", sX11DisplayOffset }, | |
fa649821 | 246 | { "xauthlocation", sXAuthLocation }, |
5260325f | 247 | { "strictmodes", sStrictModes }, |
248 | { "permitemptypasswords", sEmptyPasswd }, | |
249 | { "uselogin", sUseLogin }, | |
250 | { "randomseed", sRandomSeedFile }, | |
251 | { "keepalive", sKeepAlives }, | |
33de75a3 | 252 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 253 | { "allowusers", sAllowUsers }, |
254 | { "denyusers", sDenyUsers }, | |
255 | { "allowgroups", sAllowGroups }, | |
256 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 257 | { "ciphers", sCiphers }, |
258 | { "protocol", sProtocol }, | |
1d1ffb87 | 259 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 260 | { "subsystem", sSubsystem }, |
089fbbd2 | 261 | { "maxstartups", sMaxStartups }, |
eea39c02 | 262 | { "banner", sBanner }, |
5260325f | 263 | { NULL, 0 } |
8efc0c15 | 264 | }; |
265 | ||
aa3378df | 266 | /* |
267 | * Returns the number of the token pointed to by cp of length len. Never | |
268 | * returns if the token is not known. | |
269 | */ | |
8efc0c15 | 270 | |
6ae2364d | 271 | static ServerOpCodes |
5260325f | 272 | parse_token(const char *cp, const char *filename, |
273 | int linenum) | |
8efc0c15 | 274 | { |
1e3b8b07 | 275 | u_int i; |
8efc0c15 | 276 | |
5260325f | 277 | for (i = 0; keywords[i].name; i++) |
aa3378df | 278 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 279 | return keywords[i].opcode; |
8efc0c15 | 280 | |
5260325f | 281 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
282 | filename, linenum, cp); | |
283 | return sBadOption; | |
8efc0c15 | 284 | } |
285 | ||
48e671d5 | 286 | /* |
287 | * add listen address | |
288 | */ | |
6ae2364d | 289 | void |
48e671d5 | 290 | add_listen_addr(ServerOptions *options, char *addr) |
291 | { | |
292 | extern int IPv4or6; | |
293 | struct addrinfo hints, *ai, *aitop; | |
294 | char strport[NI_MAXSERV]; | |
295 | int gaierr; | |
296 | int i; | |
297 | ||
298 | if (options->num_ports == 0) | |
299 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
300 | for (i = 0; i < options->num_ports; i++) { | |
301 | memset(&hints, 0, sizeof(hints)); | |
302 | hints.ai_family = IPv4or6; | |
303 | hints.ai_socktype = SOCK_STREAM; | |
304 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
305 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
306 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
307 | fatal("bad addr or host: %s (%s)\n", | |
308 | addr ? addr : "<NULL>", | |
309 | gai_strerror(gaierr)); | |
310 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
311 | ; | |
312 | ai->ai_next = options->listen_addrs; | |
313 | options->listen_addrs = aitop; | |
314 | } | |
315 | } | |
316 | ||
8efc0c15 | 317 | /* Reads the server configuration file. */ |
318 | ||
6ae2364d | 319 | void |
5260325f | 320 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 321 | { |
5260325f | 322 | FILE *f; |
323 | char line[1024]; | |
089fbbd2 | 324 | char *cp, **charptr, *arg; |
5260325f | 325 | int linenum, *intptr, value; |
326 | int bad_options = 0; | |
327 | ServerOpCodes opcode; | |
38c295d6 | 328 | int i; |
5260325f | 329 | |
330 | f = fopen(filename, "r"); | |
331 | if (!f) { | |
332 | perror(filename); | |
8efc0c15 | 333 | exit(1); |
5260325f | 334 | } |
335 | linenum = 0; | |
336 | while (fgets(line, sizeof(line), f)) { | |
337 | linenum++; | |
704b1659 | 338 | cp = line; |
339 | arg = strdelim(&cp); | |
340 | /* Ignore leading whitespace */ | |
341 | if (*arg == '\0') | |
342 | arg = strdelim(&cp); | |
343 | if (!*arg || *arg == '#') | |
5260325f | 344 | continue; |
fa08c86b | 345 | intptr = NULL; |
346 | charptr = NULL; | |
089fbbd2 | 347 | opcode = parse_token(arg, filename, linenum); |
5260325f | 348 | switch (opcode) { |
349 | case sBadOption: | |
350 | bad_options++; | |
351 | continue; | |
352 | case sPort: | |
48e671d5 | 353 | /* ignore ports from configfile if cmdline specifies ports */ |
354 | if (options->ports_from_cmdline) | |
355 | continue; | |
356 | if (options->listen_addrs != NULL) | |
357 | fatal("%s line %d: ports must be specified before " | |
358 | "ListenAdress.\n", filename, linenum); | |
359 | if (options->num_ports >= MAX_PORTS) | |
360 | fatal("%s line %d: too many ports.\n", | |
6ae2364d | 361 | filename, linenum); |
704b1659 | 362 | arg = strdelim(&cp); |
089fbbd2 | 363 | if (!arg || *arg == '\0') |
48e671d5 | 364 | fatal("%s line %d: missing port number.\n", |
365 | filename, linenum); | |
089fbbd2 | 366 | options->ports[options->num_ports++] = atoi(arg); |
48e671d5 | 367 | break; |
368 | ||
369 | case sServerKeyBits: | |
370 | intptr = &options->server_key_bits; | |
5260325f | 371 | parse_int: |
704b1659 | 372 | arg = strdelim(&cp); |
089fbbd2 | 373 | if (!arg || *arg == '\0') { |
5260325f | 374 | fprintf(stderr, "%s line %d: missing integer value.\n", |
375 | filename, linenum); | |
376 | exit(1); | |
377 | } | |
089fbbd2 | 378 | value = atoi(arg); |
5260325f | 379 | if (*intptr == -1) |
380 | *intptr = value; | |
381 | break; | |
382 | ||
5260325f | 383 | case sLoginGraceTime: |
384 | intptr = &options->login_grace_time; | |
385 | goto parse_int; | |
386 | ||
387 | case sKeyRegenerationTime: | |
388 | intptr = &options->key_regeneration_time; | |
389 | goto parse_int; | |
390 | ||
391 | case sListenAddress: | |
704b1659 | 392 | arg = strdelim(&cp); |
089fbbd2 | 393 | if (!arg || *arg == '\0') |
48e671d5 | 394 | fatal("%s line %d: missing inet addr.\n", |
395 | filename, linenum); | |
089fbbd2 | 396 | add_listen_addr(options, arg); |
5260325f | 397 | break; |
398 | ||
399 | case sHostKeyFile: | |
fa08c86b | 400 | intptr = &options->num_host_key_files; |
401 | if (*intptr >= MAX_HOSTKEYS) { | |
402 | fprintf(stderr, "%s line %d: to many host keys specified (max %d).\n", | |
403 | filename, linenum, MAX_HOSTKEYS); | |
404 | exit(1); | |
405 | } | |
406 | charptr = &options->host_key_files[*intptr]; | |
fa649821 | 407 | parse_filename: |
704b1659 | 408 | arg = strdelim(&cp); |
089fbbd2 | 409 | if (!arg || *arg == '\0') { |
5260325f | 410 | fprintf(stderr, "%s line %d: missing file name.\n", |
0fbe8c74 | 411 | filename, linenum); |
412 | exit(1); | |
413 | } | |
fa08c86b | 414 | if (*charptr == NULL) { |
089fbbd2 | 415 | *charptr = tilde_expand_filename(arg, getuid()); |
fa08c86b | 416 | /* increase optional counter */ |
417 | if (intptr != NULL) | |
418 | *intptr = *intptr + 1; | |
419 | } | |
0fbe8c74 | 420 | break; |
421 | ||
422 | case sPidFile: | |
423 | charptr = &options->pid_file; | |
fa649821 | 424 | goto parse_filename; |
5260325f | 425 | |
426 | case sRandomSeedFile: | |
427 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
428 | filename, linenum); | |
704b1659 | 429 | arg = strdelim(&cp); |
5260325f | 430 | break; |
431 | ||
432 | case sPermitRootLogin: | |
433 | intptr = &options->permit_root_login; | |
704b1659 | 434 | arg = strdelim(&cp); |
089fbbd2 | 435 | if (!arg || *arg == '\0') { |
5260325f | 436 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
437 | filename, linenum); | |
438 | exit(1); | |
439 | } | |
089fbbd2 | 440 | if (strcmp(arg, "without-password") == 0) |
5260325f | 441 | value = 2; |
089fbbd2 | 442 | else if (strcmp(arg, "yes") == 0) |
5260325f | 443 | value = 1; |
089fbbd2 | 444 | else if (strcmp(arg, "no") == 0) |
5260325f | 445 | value = 0; |
446 | else { | |
447 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
089fbbd2 | 448 | filename, linenum, arg); |
5260325f | 449 | exit(1); |
450 | } | |
451 | if (*intptr == -1) | |
452 | *intptr = value; | |
453 | break; | |
454 | ||
455 | case sIgnoreRhosts: | |
456 | intptr = &options->ignore_rhosts; | |
457 | parse_flag: | |
704b1659 | 458 | arg = strdelim(&cp); |
089fbbd2 | 459 | if (!arg || *arg == '\0') { |
5260325f | 460 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
461 | filename, linenum); | |
462 | exit(1); | |
463 | } | |
089fbbd2 | 464 | if (strcmp(arg, "yes") == 0) |
5260325f | 465 | value = 1; |
089fbbd2 | 466 | else if (strcmp(arg, "no") == 0) |
5260325f | 467 | value = 0; |
468 | else { | |
469 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
089fbbd2 | 470 | filename, linenum, arg); |
5260325f | 471 | exit(1); |
472 | } | |
473 | if (*intptr == -1) | |
474 | *intptr = value; | |
475 | break; | |
476 | ||
477 | case sIgnoreUserKnownHosts: | |
478 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 479 | goto parse_flag; |
5260325f | 480 | |
481 | case sRhostsAuthentication: | |
482 | intptr = &options->rhosts_authentication; | |
483 | goto parse_flag; | |
484 | ||
485 | case sRhostsRSAAuthentication: | |
486 | intptr = &options->rhosts_rsa_authentication; | |
487 | goto parse_flag; | |
488 | ||
489 | case sRSAAuthentication: | |
490 | intptr = &options->rsa_authentication; | |
491 | goto parse_flag; | |
492 | ||
fa08c86b | 493 | case sPubkeyAuthentication: |
494 | intptr = &options->pubkey_authentication; | |
1d1ffb87 | 495 | goto parse_flag; |
496 | ||
8efc0c15 | 497 | #ifdef KRB4 |
5260325f | 498 | case sKerberosAuthentication: |
499 | intptr = &options->kerberos_authentication; | |
500 | goto parse_flag; | |
501 | ||
502 | case sKerberosOrLocalPasswd: | |
503 | intptr = &options->kerberos_or_local_passwd; | |
504 | goto parse_flag; | |
505 | ||
506 | case sKerberosTicketCleanup: | |
507 | intptr = &options->kerberos_ticket_cleanup; | |
508 | goto parse_flag; | |
8efc0c15 | 509 | #endif |
5260325f | 510 | |
8efc0c15 | 511 | #ifdef AFS |
5260325f | 512 | case sKerberosTgtPassing: |
513 | intptr = &options->kerberos_tgt_passing; | |
514 | goto parse_flag; | |
8efc0c15 | 515 | |
5260325f | 516 | case sAFSTokenPassing: |
517 | intptr = &options->afs_token_passing; | |
518 | goto parse_flag; | |
8efc0c15 | 519 | #endif |
520 | ||
5260325f | 521 | case sPasswordAuthentication: |
522 | intptr = &options->password_authentication; | |
523 | goto parse_flag; | |
8efc0c15 | 524 | |
94ec8c6b | 525 | case sKbdInteractiveAuthentication: |
526 | intptr = &options->kbd_interactive_authentication; | |
527 | goto parse_flag; | |
528 | ||
5260325f | 529 | case sCheckMail: |
530 | intptr = &options->check_mail; | |
531 | goto parse_flag; | |
8efc0c15 | 532 | |
533 | #ifdef SKEY | |
5260325f | 534 | case sSkeyAuthentication: |
535 | intptr = &options->skey_authentication; | |
536 | goto parse_flag; | |
8efc0c15 | 537 | #endif |
538 | ||
5260325f | 539 | case sPrintMotd: |
540 | intptr = &options->print_motd; | |
541 | goto parse_flag; | |
542 | ||
543 | case sX11Forwarding: | |
544 | intptr = &options->x11_forwarding; | |
545 | goto parse_flag; | |
546 | ||
547 | case sX11DisplayOffset: | |
548 | intptr = &options->x11_display_offset; | |
549 | goto parse_int; | |
550 | ||
fa649821 | 551 | case sXAuthLocation: |
552 | charptr = &options->xauth_location; | |
553 | goto parse_filename; | |
554 | ||
5260325f | 555 | case sStrictModes: |
556 | intptr = &options->strict_modes; | |
557 | goto parse_flag; | |
558 | ||
559 | case sKeepAlives: | |
560 | intptr = &options->keepalives; | |
561 | goto parse_flag; | |
562 | ||
563 | case sEmptyPasswd: | |
564 | intptr = &options->permit_empty_passwd; | |
565 | goto parse_flag; | |
566 | ||
567 | case sUseLogin: | |
568 | intptr = &options->use_login; | |
569 | goto parse_flag; | |
570 | ||
1d1ffb87 | 571 | case sGatewayPorts: |
572 | intptr = &options->gateway_ports; | |
573 | goto parse_flag; | |
574 | ||
5260325f | 575 | case sLogFacility: |
576 | intptr = (int *) &options->log_facility; | |
704b1659 | 577 | arg = strdelim(&cp); |
089fbbd2 | 578 | value = log_facility_number(arg); |
5260325f | 579 | if (value == (SyslogFacility) - 1) |
580 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
089fbbd2 | 581 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 582 | if (*intptr == -1) |
583 | *intptr = (SyslogFacility) value; | |
584 | break; | |
585 | ||
586 | case sLogLevel: | |
587 | intptr = (int *) &options->log_level; | |
704b1659 | 588 | arg = strdelim(&cp); |
089fbbd2 | 589 | value = log_level_number(arg); |
5260325f | 590 | if (value == (LogLevel) - 1) |
591 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
089fbbd2 | 592 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 593 | if (*intptr == -1) |
594 | *intptr = (LogLevel) value; | |
595 | break; | |
596 | ||
33de75a3 | 597 | case sAllowTcpForwarding: |
598 | intptr = &options->allow_tcp_forwarding; | |
599 | goto parse_flag; | |
600 | ||
5260325f | 601 | case sAllowUsers: |
704b1659 | 602 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 603 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
604 | fatal("%s line %d: too many allow users.\n", | |
605 | filename, linenum); | |
089fbbd2 | 606 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
5260325f | 607 | } |
608 | break; | |
609 | ||
610 | case sDenyUsers: | |
704b1659 | 611 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 612 | if (options->num_deny_users >= MAX_DENY_USERS) |
613 | fatal( "%s line %d: too many deny users.\n", | |
614 | filename, linenum); | |
089fbbd2 | 615 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
5260325f | 616 | } |
617 | break; | |
618 | ||
619 | case sAllowGroups: | |
704b1659 | 620 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 621 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
622 | fatal("%s line %d: too many allow groups.\n", | |
623 | filename, linenum); | |
089fbbd2 | 624 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
5260325f | 625 | } |
626 | break; | |
627 | ||
628 | case sDenyGroups: | |
704b1659 | 629 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 630 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
631 | fatal("%s line %d: too many deny groups.\n", | |
632 | filename, linenum); | |
089fbbd2 | 633 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
5260325f | 634 | } |
635 | break; | |
636 | ||
a8be9f80 | 637 | case sCiphers: |
704b1659 | 638 | arg = strdelim(&cp); |
089fbbd2 | 639 | if (!arg || *arg == '\0') |
71276795 | 640 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 641 | if (!ciphers_valid(arg)) |
d0c832f3 | 642 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
089fbbd2 | 643 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 644 | if (options->ciphers == NULL) |
089fbbd2 | 645 | options->ciphers = xstrdup(arg); |
a8be9f80 | 646 | break; |
647 | ||
648 | case sProtocol: | |
649 | intptr = &options->protocol; | |
704b1659 | 650 | arg = strdelim(&cp); |
089fbbd2 | 651 | if (!arg || *arg == '\0') |
71276795 | 652 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 653 | value = proto_spec(arg); |
a8be9f80 | 654 | if (value == SSH_PROTO_UNKNOWN) |
655 | fatal("%s line %d: Bad protocol spec '%s'.", | |
089fbbd2 | 656 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 657 | if (*intptr == SSH_PROTO_UNKNOWN) |
658 | *intptr = value; | |
659 | break; | |
660 | ||
38c295d6 | 661 | case sSubsystem: |
662 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { | |
663 | fatal("%s line %d: too many subsystems defined.", | |
664 | filename, linenum); | |
665 | } | |
704b1659 | 666 | arg = strdelim(&cp); |
089fbbd2 | 667 | if (!arg || *arg == '\0') |
38c295d6 | 668 | fatal("%s line %d: Missing subsystem name.", |
669 | filename, linenum); | |
670 | for (i = 0; i < options->num_subsystems; i++) | |
089fbbd2 | 671 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
38c295d6 | 672 | fatal("%s line %d: Subsystem '%s' already defined.", |
089fbbd2 | 673 | filename, linenum, arg); |
674 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
704b1659 | 675 | arg = strdelim(&cp); |
089fbbd2 | 676 | if (!arg || *arg == '\0') |
38c295d6 | 677 | fatal("%s line %d: Missing subsystem command.", |
678 | filename, linenum); | |
089fbbd2 | 679 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
38c295d6 | 680 | options->num_subsystems++; |
681 | break; | |
682 | ||
089fbbd2 | 683 | case sMaxStartups: |
c345cf9d | 684 | arg = strdelim(&cp); |
685 | if (!arg || *arg == '\0') | |
686 | fatal("%s line %d: Missing MaxStartups spec.", | |
687 | filename, linenum); | |
688 | if (sscanf(arg, "%d:%d:%d", | |
689 | &options->max_startups_begin, | |
690 | &options->max_startups_rate, | |
691 | &options->max_startups) == 3) { | |
692 | if (options->max_startups_begin > | |
693 | options->max_startups || | |
694 | options->max_startups_rate > 100 || | |
695 | options->max_startups_rate < 1) | |
696 | fatal("%s line %d: Illegal MaxStartups spec.", | |
697 | filename, linenum); | |
698 | break; | |
699 | } | |
089fbbd2 | 700 | intptr = &options->max_startups; |
701 | goto parse_int; | |
702 | ||
eea39c02 | 703 | case sBanner: |
704 | charptr = &options->banner; | |
705 | goto parse_filename; | |
706 | ||
5260325f | 707 | default: |
708 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
089fbbd2 | 709 | filename, linenum, arg, opcode); |
5260325f | 710 | exit(1); |
8efc0c15 | 711 | } |
704b1659 | 712 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
089fbbd2 | 713 | fprintf(stderr, |
714 | "%s line %d: garbage at end of line; \"%.200s\".\n", | |
715 | filename, linenum, arg); | |
5260325f | 716 | exit(1); |
8efc0c15 | 717 | } |
8efc0c15 | 718 | } |
5260325f | 719 | fclose(f); |
720 | if (bad_options > 0) { | |
721 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
722 | filename, bad_options); | |
723 | exit(1); | |
8efc0c15 | 724 | } |
8efc0c15 | 725 | } |