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Commit | Line | Data |
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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" | |
6005a40c | 13 | RCSID("$OpenBSD: servconf.c,v 1.59 2001/01/19 12:45:26 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; |
5260325f | 64 | options->skey_authentication = -1; |
5260325f | 65 | options->permit_empty_passwd = -1; |
66 | options->use_login = -1; | |
33de75a3 | 67 | options->allow_tcp_forwarding = -1; |
5260325f | 68 | options->num_allow_users = 0; |
69 | options->num_deny_users = 0; | |
70 | options->num_allow_groups = 0; | |
71 | options->num_deny_groups = 0; | |
a8be9f80 | 72 | options->ciphers = NULL; |
73 | options->protocol = SSH_PROTO_UNKNOWN; | |
1d1ffb87 | 74 | options->gateway_ports = -1; |
38c295d6 | 75 | options->num_subsystems = 0; |
c345cf9d | 76 | options->max_startups_begin = -1; |
77 | options->max_startups_rate = -1; | |
089fbbd2 | 78 | options->max_startups = -1; |
eea39c02 | 79 | options->banner = NULL; |
8efc0c15 | 80 | } |
81 | ||
6ae2364d | 82 | void |
5260325f | 83 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 84 | { |
fa08c86b | 85 | if (options->protocol == SSH_PROTO_UNKNOWN) |
86 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
87 | if (options->num_host_key_files == 0) { | |
88 | /* fill default hostkeys for protocols */ | |
89 | if (options->protocol & SSH_PROTO_1) | |
90 | options->host_key_files[options->num_host_key_files++] = HOST_KEY_FILE; | |
91 | if (options->protocol & SSH_PROTO_2) | |
92 | options->host_key_files[options->num_host_key_files++] = HOST_DSA_KEY_FILE; | |
93 | } | |
48e671d5 | 94 | if (options->num_ports == 0) |
95 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
96 | if (options->listen_addrs == NULL) | |
97 | add_listen_addr(options, NULL); | |
0fbe8c74 | 98 | if (options->pid_file == NULL) |
99 | options->pid_file = SSH_DAEMON_PID_FILE; | |
5260325f | 100 | if (options->server_key_bits == -1) |
101 | options->server_key_bits = 768; | |
102 | if (options->login_grace_time == -1) | |
103 | options->login_grace_time = 600; | |
104 | if (options->key_regeneration_time == -1) | |
105 | options->key_regeneration_time = 3600; | |
106 | if (options->permit_root_login == -1) | |
107 | options->permit_root_login = 1; /* yes */ | |
108 | if (options->ignore_rhosts == -1) | |
c8d54615 | 109 | options->ignore_rhosts = 1; |
5260325f | 110 | if (options->ignore_user_known_hosts == -1) |
111 | options->ignore_user_known_hosts = 0; | |
112 | if (options->check_mail == -1) | |
113 | options->check_mail = 0; | |
114 | if (options->print_motd == -1) | |
115 | options->print_motd = 1; | |
116 | if (options->x11_forwarding == -1) | |
c8d54615 | 117 | options->x11_forwarding = 0; |
5260325f | 118 | if (options->x11_display_offset == -1) |
c8d54615 | 119 | options->x11_display_offset = 10; |
fa649821 | 120 | #ifdef XAUTH_PATH |
121 | if (options->xauth_location == NULL) | |
122 | options->xauth_location = XAUTH_PATH; | |
123 | #endif /* XAUTH_PATH */ | |
5260325f | 124 | if (options->strict_modes == -1) |
125 | options->strict_modes = 1; | |
126 | if (options->keepalives == -1) | |
127 | options->keepalives = 1; | |
128 | if (options->log_facility == (SyslogFacility) (-1)) | |
129 | options->log_facility = SYSLOG_FACILITY_AUTH; | |
130 | if (options->log_level == (LogLevel) (-1)) | |
59c97189 | 131 | options->log_level = SYSLOG_LEVEL_INFO; |
5260325f | 132 | if (options->rhosts_authentication == -1) |
133 | options->rhosts_authentication = 0; | |
134 | if (options->rhosts_rsa_authentication == -1) | |
c8d54615 | 135 | options->rhosts_rsa_authentication = 0; |
5260325f | 136 | if (options->rsa_authentication == -1) |
137 | options->rsa_authentication = 1; | |
fa08c86b | 138 | if (options->pubkey_authentication == -1) |
139 | options->pubkey_authentication = 1; | |
8efc0c15 | 140 | #ifdef KRB4 |
5260325f | 141 | if (options->kerberos_authentication == -1) |
142 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); | |
143 | if (options->kerberos_or_local_passwd == -1) | |
144 | options->kerberos_or_local_passwd = 1; | |
145 | if (options->kerberos_ticket_cleanup == -1) | |
146 | options->kerberos_ticket_cleanup = 1; | |
8efc0c15 | 147 | #endif /* KRB4 */ |
148 | #ifdef AFS | |
5260325f | 149 | if (options->kerberos_tgt_passing == -1) |
150 | options->kerberos_tgt_passing = 0; | |
151 | if (options->afs_token_passing == -1) | |
152 | options->afs_token_passing = k_hasafs(); | |
8efc0c15 | 153 | #endif /* AFS */ |
5260325f | 154 | if (options->password_authentication == -1) |
155 | options->password_authentication = 1; | |
94ec8c6b | 156 | if (options->kbd_interactive_authentication == -1) |
157 | options->kbd_interactive_authentication = 0; | |
5260325f | 158 | if (options->skey_authentication == -1) |
159 | options->skey_authentication = 1; | |
5260325f | 160 | if (options->permit_empty_passwd == -1) |
c8d54615 | 161 | options->permit_empty_passwd = 0; |
5260325f | 162 | if (options->use_login == -1) |
163 | options->use_login = 0; | |
33de75a3 | 164 | if (options->allow_tcp_forwarding == -1) |
165 | options->allow_tcp_forwarding = 1; | |
1d1ffb87 | 166 | if (options->gateway_ports == -1) |
167 | options->gateway_ports = 0; | |
089fbbd2 | 168 | if (options->max_startups == -1) |
169 | options->max_startups = 10; | |
c345cf9d | 170 | if (options->max_startups_rate == -1) |
171 | options->max_startups_rate = 100; /* 100% */ | |
172 | if (options->max_startups_begin == -1) | |
173 | options->max_startups_begin = options->max_startups; | |
8efc0c15 | 174 | } |
175 | ||
8efc0c15 | 176 | /* Keyword tokens. */ |
5260325f | 177 | typedef enum { |
178 | sBadOption, /* == unknown option */ | |
179 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
180 | sPermitRootLogin, sLogFacility, sLogLevel, | |
181 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 182 | #ifdef KRB4 |
5260325f | 183 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 184 | #endif |
185 | #ifdef AFS | |
5260325f | 186 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 187 | #endif |
5260325f | 188 | sSkeyAuthentication, |
94ec8c6b | 189 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, |
5260325f | 190 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, |
191 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
33de75a3 | 192 | sUseLogin, sAllowTcpForwarding, |
193 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
fa08c86b | 194 | sIgnoreUserKnownHosts, sCiphers, sProtocol, sPidFile, |
195 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups, | |
eea39c02 | 196 | sBanner |
8efc0c15 | 197 | } ServerOpCodes; |
198 | ||
199 | /* Textual representation of the tokens. */ | |
5260325f | 200 | static struct { |
201 | const char *name; | |
202 | ServerOpCodes opcode; | |
203 | } keywords[] = { | |
204 | { "port", sPort }, | |
205 | { "hostkey", sHostKeyFile }, | |
fa08c86b | 206 | { "hostdsakey", sHostKeyFile }, /* alias */ |
0fbe8c74 | 207 | { "pidfile", sPidFile }, |
5260325f | 208 | { "serverkeybits", sServerKeyBits }, |
209 | { "logingracetime", sLoginGraceTime }, | |
210 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
211 | { "permitrootlogin", sPermitRootLogin }, | |
212 | { "syslogfacility", sLogFacility }, | |
213 | { "loglevel", sLogLevel }, | |
214 | { "rhostsauthentication", sRhostsAuthentication }, | |
215 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
216 | { "rsaauthentication", sRSAAuthentication }, | |
fa08c86b | 217 | { "pubkeyauthentication", sPubkeyAuthentication }, |
218 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
8efc0c15 | 219 | #ifdef KRB4 |
5260325f | 220 | { "kerberosauthentication", sKerberosAuthentication }, |
221 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
222 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 223 | #endif |
224 | #ifdef AFS | |
5260325f | 225 | { "kerberostgtpassing", sKerberosTgtPassing }, |
226 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 227 | #endif |
5260325f | 228 | { "passwordauthentication", sPasswordAuthentication }, |
94ec8c6b | 229 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, |
5260325f | 230 | { "skeyauthentication", sSkeyAuthentication }, |
5260325f | 231 | { "checkmail", sCheckMail }, |
232 | { "listenaddress", sListenAddress }, | |
233 | { "printmotd", sPrintMotd }, | |
234 | { "ignorerhosts", sIgnoreRhosts }, | |
235 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
236 | { "x11forwarding", sX11Forwarding }, | |
237 | { "x11displayoffset", sX11DisplayOffset }, | |
fa649821 | 238 | { "xauthlocation", sXAuthLocation }, |
5260325f | 239 | { "strictmodes", sStrictModes }, |
240 | { "permitemptypasswords", sEmptyPasswd }, | |
241 | { "uselogin", sUseLogin }, | |
242 | { "randomseed", sRandomSeedFile }, | |
243 | { "keepalive", sKeepAlives }, | |
33de75a3 | 244 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 245 | { "allowusers", sAllowUsers }, |
246 | { "denyusers", sDenyUsers }, | |
247 | { "allowgroups", sAllowGroups }, | |
248 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 249 | { "ciphers", sCiphers }, |
250 | { "protocol", sProtocol }, | |
1d1ffb87 | 251 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 252 | { "subsystem", sSubsystem }, |
089fbbd2 | 253 | { "maxstartups", sMaxStartups }, |
eea39c02 | 254 | { "banner", sBanner }, |
5260325f | 255 | { NULL, 0 } |
8efc0c15 | 256 | }; |
257 | ||
aa3378df | 258 | /* |
259 | * Returns the number of the token pointed to by cp of length len. Never | |
260 | * returns if the token is not known. | |
261 | */ | |
8efc0c15 | 262 | |
6ae2364d | 263 | static ServerOpCodes |
5260325f | 264 | parse_token(const char *cp, const char *filename, |
265 | int linenum) | |
8efc0c15 | 266 | { |
1e3b8b07 | 267 | u_int i; |
8efc0c15 | 268 | |
5260325f | 269 | for (i = 0; keywords[i].name; i++) |
aa3378df | 270 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 271 | return keywords[i].opcode; |
8efc0c15 | 272 | |
5260325f | 273 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
274 | filename, linenum, cp); | |
275 | return sBadOption; | |
8efc0c15 | 276 | } |
277 | ||
48e671d5 | 278 | /* |
279 | * add listen address | |
280 | */ | |
6ae2364d | 281 | void |
48e671d5 | 282 | add_listen_addr(ServerOptions *options, char *addr) |
283 | { | |
284 | extern int IPv4or6; | |
285 | struct addrinfo hints, *ai, *aitop; | |
286 | char strport[NI_MAXSERV]; | |
287 | int gaierr; | |
288 | int i; | |
289 | ||
290 | if (options->num_ports == 0) | |
291 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
292 | for (i = 0; i < options->num_ports; i++) { | |
293 | memset(&hints, 0, sizeof(hints)); | |
294 | hints.ai_family = IPv4or6; | |
295 | hints.ai_socktype = SOCK_STREAM; | |
296 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
297 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
298 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
299 | fatal("bad addr or host: %s (%s)\n", | |
300 | addr ? addr : "<NULL>", | |
301 | gai_strerror(gaierr)); | |
302 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
303 | ; | |
304 | ai->ai_next = options->listen_addrs; | |
305 | options->listen_addrs = aitop; | |
306 | } | |
307 | } | |
308 | ||
8efc0c15 | 309 | /* Reads the server configuration file. */ |
310 | ||
6ae2364d | 311 | void |
5260325f | 312 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 313 | { |
5260325f | 314 | FILE *f; |
315 | char line[1024]; | |
089fbbd2 | 316 | char *cp, **charptr, *arg; |
5260325f | 317 | int linenum, *intptr, value; |
318 | int bad_options = 0; | |
319 | ServerOpCodes opcode; | |
38c295d6 | 320 | int i; |
5260325f | 321 | |
322 | f = fopen(filename, "r"); | |
323 | if (!f) { | |
324 | perror(filename); | |
8efc0c15 | 325 | exit(1); |
5260325f | 326 | } |
327 | linenum = 0; | |
328 | while (fgets(line, sizeof(line), f)) { | |
329 | linenum++; | |
704b1659 | 330 | cp = line; |
331 | arg = strdelim(&cp); | |
332 | /* Ignore leading whitespace */ | |
333 | if (*arg == '\0') | |
334 | arg = strdelim(&cp); | |
335 | if (!*arg || *arg == '#') | |
5260325f | 336 | continue; |
fa08c86b | 337 | intptr = NULL; |
338 | charptr = NULL; | |
089fbbd2 | 339 | opcode = parse_token(arg, filename, linenum); |
5260325f | 340 | switch (opcode) { |
341 | case sBadOption: | |
342 | bad_options++; | |
343 | continue; | |
344 | case sPort: | |
48e671d5 | 345 | /* ignore ports from configfile if cmdline specifies ports */ |
346 | if (options->ports_from_cmdline) | |
347 | continue; | |
348 | if (options->listen_addrs != NULL) | |
349 | fatal("%s line %d: ports must be specified before " | |
350 | "ListenAdress.\n", filename, linenum); | |
351 | if (options->num_ports >= MAX_PORTS) | |
352 | fatal("%s line %d: too many ports.\n", | |
6ae2364d | 353 | filename, linenum); |
704b1659 | 354 | arg = strdelim(&cp); |
089fbbd2 | 355 | if (!arg || *arg == '\0') |
48e671d5 | 356 | fatal("%s line %d: missing port number.\n", |
357 | filename, linenum); | |
089fbbd2 | 358 | options->ports[options->num_ports++] = atoi(arg); |
48e671d5 | 359 | break; |
360 | ||
361 | case sServerKeyBits: | |
362 | intptr = &options->server_key_bits; | |
5260325f | 363 | parse_int: |
704b1659 | 364 | arg = strdelim(&cp); |
089fbbd2 | 365 | if (!arg || *arg == '\0') { |
5260325f | 366 | fprintf(stderr, "%s line %d: missing integer value.\n", |
367 | filename, linenum); | |
368 | exit(1); | |
369 | } | |
089fbbd2 | 370 | value = atoi(arg); |
5260325f | 371 | if (*intptr == -1) |
372 | *intptr = value; | |
373 | break; | |
374 | ||
5260325f | 375 | case sLoginGraceTime: |
376 | intptr = &options->login_grace_time; | |
377 | goto parse_int; | |
378 | ||
379 | case sKeyRegenerationTime: | |
380 | intptr = &options->key_regeneration_time; | |
381 | goto parse_int; | |
382 | ||
383 | case sListenAddress: | |
704b1659 | 384 | arg = strdelim(&cp); |
089fbbd2 | 385 | if (!arg || *arg == '\0') |
48e671d5 | 386 | fatal("%s line %d: missing inet addr.\n", |
387 | filename, linenum); | |
089fbbd2 | 388 | add_listen_addr(options, arg); |
5260325f | 389 | break; |
390 | ||
391 | case sHostKeyFile: | |
fa08c86b | 392 | intptr = &options->num_host_key_files; |
393 | if (*intptr >= MAX_HOSTKEYS) { | |
394 | fprintf(stderr, "%s line %d: to many host keys specified (max %d).\n", | |
395 | filename, linenum, MAX_HOSTKEYS); | |
396 | exit(1); | |
397 | } | |
398 | charptr = &options->host_key_files[*intptr]; | |
fa649821 | 399 | parse_filename: |
704b1659 | 400 | arg = strdelim(&cp); |
089fbbd2 | 401 | if (!arg || *arg == '\0') { |
5260325f | 402 | fprintf(stderr, "%s line %d: missing file name.\n", |
0fbe8c74 | 403 | filename, linenum); |
404 | exit(1); | |
405 | } | |
fa08c86b | 406 | if (*charptr == NULL) { |
089fbbd2 | 407 | *charptr = tilde_expand_filename(arg, getuid()); |
fa08c86b | 408 | /* increase optional counter */ |
409 | if (intptr != NULL) | |
410 | *intptr = *intptr + 1; | |
411 | } | |
0fbe8c74 | 412 | break; |
413 | ||
414 | case sPidFile: | |
415 | charptr = &options->pid_file; | |
fa649821 | 416 | goto parse_filename; |
5260325f | 417 | |
418 | case sRandomSeedFile: | |
419 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
420 | filename, linenum); | |
704b1659 | 421 | arg = strdelim(&cp); |
5260325f | 422 | break; |
423 | ||
424 | case sPermitRootLogin: | |
425 | intptr = &options->permit_root_login; | |
704b1659 | 426 | arg = strdelim(&cp); |
089fbbd2 | 427 | if (!arg || *arg == '\0') { |
5260325f | 428 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
429 | filename, linenum); | |
430 | exit(1); | |
431 | } | |
089fbbd2 | 432 | if (strcmp(arg, "without-password") == 0) |
5260325f | 433 | value = 2; |
089fbbd2 | 434 | else if (strcmp(arg, "yes") == 0) |
5260325f | 435 | value = 1; |
089fbbd2 | 436 | else if (strcmp(arg, "no") == 0) |
5260325f | 437 | value = 0; |
438 | else { | |
439 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
089fbbd2 | 440 | filename, linenum, arg); |
5260325f | 441 | exit(1); |
442 | } | |
443 | if (*intptr == -1) | |
444 | *intptr = value; | |
445 | break; | |
446 | ||
447 | case sIgnoreRhosts: | |
448 | intptr = &options->ignore_rhosts; | |
449 | parse_flag: | |
704b1659 | 450 | arg = strdelim(&cp); |
089fbbd2 | 451 | if (!arg || *arg == '\0') { |
5260325f | 452 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
453 | filename, linenum); | |
454 | exit(1); | |
455 | } | |
089fbbd2 | 456 | if (strcmp(arg, "yes") == 0) |
5260325f | 457 | value = 1; |
089fbbd2 | 458 | else if (strcmp(arg, "no") == 0) |
5260325f | 459 | value = 0; |
460 | else { | |
461 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
089fbbd2 | 462 | filename, linenum, arg); |
5260325f | 463 | exit(1); |
464 | } | |
465 | if (*intptr == -1) | |
466 | *intptr = value; | |
467 | break; | |
468 | ||
469 | case sIgnoreUserKnownHosts: | |
470 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 471 | goto parse_flag; |
5260325f | 472 | |
473 | case sRhostsAuthentication: | |
474 | intptr = &options->rhosts_authentication; | |
475 | goto parse_flag; | |
476 | ||
477 | case sRhostsRSAAuthentication: | |
478 | intptr = &options->rhosts_rsa_authentication; | |
479 | goto parse_flag; | |
480 | ||
481 | case sRSAAuthentication: | |
482 | intptr = &options->rsa_authentication; | |
483 | goto parse_flag; | |
484 | ||
fa08c86b | 485 | case sPubkeyAuthentication: |
486 | intptr = &options->pubkey_authentication; | |
1d1ffb87 | 487 | goto parse_flag; |
488 | ||
8efc0c15 | 489 | #ifdef KRB4 |
5260325f | 490 | case sKerberosAuthentication: |
491 | intptr = &options->kerberos_authentication; | |
492 | goto parse_flag; | |
493 | ||
494 | case sKerberosOrLocalPasswd: | |
495 | intptr = &options->kerberos_or_local_passwd; | |
496 | goto parse_flag; | |
497 | ||
498 | case sKerberosTicketCleanup: | |
499 | intptr = &options->kerberos_ticket_cleanup; | |
500 | goto parse_flag; | |
8efc0c15 | 501 | #endif |
5260325f | 502 | |
8efc0c15 | 503 | #ifdef AFS |
5260325f | 504 | case sKerberosTgtPassing: |
505 | intptr = &options->kerberos_tgt_passing; | |
506 | goto parse_flag; | |
8efc0c15 | 507 | |
5260325f | 508 | case sAFSTokenPassing: |
509 | intptr = &options->afs_token_passing; | |
510 | goto parse_flag; | |
8efc0c15 | 511 | #endif |
512 | ||
5260325f | 513 | case sPasswordAuthentication: |
514 | intptr = &options->password_authentication; | |
515 | goto parse_flag; | |
8efc0c15 | 516 | |
94ec8c6b | 517 | case sKbdInteractiveAuthentication: |
518 | intptr = &options->kbd_interactive_authentication; | |
519 | goto parse_flag; | |
520 | ||
5260325f | 521 | case sCheckMail: |
522 | intptr = &options->check_mail; | |
523 | goto parse_flag; | |
8efc0c15 | 524 | |
5260325f | 525 | case sSkeyAuthentication: |
526 | intptr = &options->skey_authentication; | |
527 | goto parse_flag; | |
8efc0c15 | 528 | |
5260325f | 529 | case sPrintMotd: |
530 | intptr = &options->print_motd; | |
531 | goto parse_flag; | |
532 | ||
533 | case sX11Forwarding: | |
534 | intptr = &options->x11_forwarding; | |
535 | goto parse_flag; | |
536 | ||
537 | case sX11DisplayOffset: | |
538 | intptr = &options->x11_display_offset; | |
539 | goto parse_int; | |
540 | ||
fa649821 | 541 | case sXAuthLocation: |
542 | charptr = &options->xauth_location; | |
543 | goto parse_filename; | |
544 | ||
5260325f | 545 | case sStrictModes: |
546 | intptr = &options->strict_modes; | |
547 | goto parse_flag; | |
548 | ||
549 | case sKeepAlives: | |
550 | intptr = &options->keepalives; | |
551 | goto parse_flag; | |
552 | ||
553 | case sEmptyPasswd: | |
554 | intptr = &options->permit_empty_passwd; | |
555 | goto parse_flag; | |
556 | ||
557 | case sUseLogin: | |
558 | intptr = &options->use_login; | |
559 | goto parse_flag; | |
560 | ||
1d1ffb87 | 561 | case sGatewayPorts: |
562 | intptr = &options->gateway_ports; | |
563 | goto parse_flag; | |
564 | ||
5260325f | 565 | case sLogFacility: |
566 | intptr = (int *) &options->log_facility; | |
704b1659 | 567 | arg = strdelim(&cp); |
089fbbd2 | 568 | value = log_facility_number(arg); |
5260325f | 569 | if (value == (SyslogFacility) - 1) |
570 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
089fbbd2 | 571 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 572 | if (*intptr == -1) |
573 | *intptr = (SyslogFacility) value; | |
574 | break; | |
575 | ||
576 | case sLogLevel: | |
577 | intptr = (int *) &options->log_level; | |
704b1659 | 578 | arg = strdelim(&cp); |
089fbbd2 | 579 | value = log_level_number(arg); |
5260325f | 580 | if (value == (LogLevel) - 1) |
581 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
089fbbd2 | 582 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 583 | if (*intptr == -1) |
584 | *intptr = (LogLevel) value; | |
585 | break; | |
586 | ||
33de75a3 | 587 | case sAllowTcpForwarding: |
588 | intptr = &options->allow_tcp_forwarding; | |
589 | goto parse_flag; | |
590 | ||
5260325f | 591 | case sAllowUsers: |
704b1659 | 592 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 593 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
594 | fatal("%s line %d: too many allow users.\n", | |
595 | filename, linenum); | |
089fbbd2 | 596 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
5260325f | 597 | } |
598 | break; | |
599 | ||
600 | case sDenyUsers: | |
704b1659 | 601 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 602 | if (options->num_deny_users >= MAX_DENY_USERS) |
603 | fatal( "%s line %d: too many deny users.\n", | |
604 | filename, linenum); | |
089fbbd2 | 605 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
5260325f | 606 | } |
607 | break; | |
608 | ||
609 | case sAllowGroups: | |
704b1659 | 610 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 611 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
612 | fatal("%s line %d: too many allow groups.\n", | |
613 | filename, linenum); | |
089fbbd2 | 614 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
5260325f | 615 | } |
616 | break; | |
617 | ||
618 | case sDenyGroups: | |
704b1659 | 619 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 620 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
621 | fatal("%s line %d: too many deny groups.\n", | |
622 | filename, linenum); | |
089fbbd2 | 623 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
5260325f | 624 | } |
625 | break; | |
626 | ||
a8be9f80 | 627 | case sCiphers: |
704b1659 | 628 | arg = strdelim(&cp); |
089fbbd2 | 629 | if (!arg || *arg == '\0') |
71276795 | 630 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 631 | if (!ciphers_valid(arg)) |
d0c832f3 | 632 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
089fbbd2 | 633 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 634 | if (options->ciphers == NULL) |
089fbbd2 | 635 | options->ciphers = xstrdup(arg); |
a8be9f80 | 636 | break; |
637 | ||
638 | case sProtocol: | |
639 | intptr = &options->protocol; | |
704b1659 | 640 | arg = strdelim(&cp); |
089fbbd2 | 641 | if (!arg || *arg == '\0') |
71276795 | 642 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 643 | value = proto_spec(arg); |
a8be9f80 | 644 | if (value == SSH_PROTO_UNKNOWN) |
645 | fatal("%s line %d: Bad protocol spec '%s'.", | |
089fbbd2 | 646 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 647 | if (*intptr == SSH_PROTO_UNKNOWN) |
648 | *intptr = value; | |
649 | break; | |
650 | ||
38c295d6 | 651 | case sSubsystem: |
652 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { | |
653 | fatal("%s line %d: too many subsystems defined.", | |
654 | filename, linenum); | |
655 | } | |
704b1659 | 656 | arg = strdelim(&cp); |
089fbbd2 | 657 | if (!arg || *arg == '\0') |
38c295d6 | 658 | fatal("%s line %d: Missing subsystem name.", |
659 | filename, linenum); | |
660 | for (i = 0; i < options->num_subsystems; i++) | |
089fbbd2 | 661 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
38c295d6 | 662 | fatal("%s line %d: Subsystem '%s' already defined.", |
089fbbd2 | 663 | filename, linenum, arg); |
664 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
704b1659 | 665 | arg = strdelim(&cp); |
089fbbd2 | 666 | if (!arg || *arg == '\0') |
38c295d6 | 667 | fatal("%s line %d: Missing subsystem command.", |
668 | filename, linenum); | |
089fbbd2 | 669 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
38c295d6 | 670 | options->num_subsystems++; |
671 | break; | |
672 | ||
089fbbd2 | 673 | case sMaxStartups: |
c345cf9d | 674 | arg = strdelim(&cp); |
675 | if (!arg || *arg == '\0') | |
676 | fatal("%s line %d: Missing MaxStartups spec.", | |
677 | filename, linenum); | |
678 | if (sscanf(arg, "%d:%d:%d", | |
679 | &options->max_startups_begin, | |
680 | &options->max_startups_rate, | |
681 | &options->max_startups) == 3) { | |
682 | if (options->max_startups_begin > | |
683 | options->max_startups || | |
684 | options->max_startups_rate > 100 || | |
685 | options->max_startups_rate < 1) | |
686 | fatal("%s line %d: Illegal MaxStartups spec.", | |
687 | filename, linenum); | |
688 | break; | |
689 | } | |
089fbbd2 | 690 | intptr = &options->max_startups; |
691 | goto parse_int; | |
692 | ||
eea39c02 | 693 | case sBanner: |
694 | charptr = &options->banner; | |
695 | goto parse_filename; | |
696 | ||
5260325f | 697 | default: |
698 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
089fbbd2 | 699 | filename, linenum, arg, opcode); |
5260325f | 700 | exit(1); |
8efc0c15 | 701 | } |
704b1659 | 702 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
089fbbd2 | 703 | fprintf(stderr, |
704 | "%s line %d: garbage at end of line; \"%.200s\".\n", | |
705 | filename, linenum, arg); | |
5260325f | 706 | exit(1); |
8efc0c15 | 707 | } |
8efc0c15 | 708 | } |
5260325f | 709 | fclose(f); |
710 | if (bad_options > 0) { | |
711 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
712 | filename, bad_options); | |
713 | exit(1); | |
8efc0c15 | 714 | } |
8efc0c15 | 715 | } |