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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" | |
bbcf899f | 13 | RCSID("$OpenBSD: servconf.c,v 1.56 2001/01/07 11:28:06 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; |
8efc0c15 | 81 | } |
82 | ||
6ae2364d | 83 | void |
5260325f | 84 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 85 | { |
fa08c86b | 86 | if (options->protocol == SSH_PROTO_UNKNOWN) |
87 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
88 | if (options->num_host_key_files == 0) { | |
89 | /* fill default hostkeys for protocols */ | |
90 | if (options->protocol & SSH_PROTO_1) | |
91 | options->host_key_files[options->num_host_key_files++] = HOST_KEY_FILE; | |
92 | if (options->protocol & SSH_PROTO_2) | |
93 | options->host_key_files[options->num_host_key_files++] = HOST_DSA_KEY_FILE; | |
94 | } | |
48e671d5 | 95 | if (options->num_ports == 0) |
96 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
97 | if (options->listen_addrs == NULL) | |
98 | add_listen_addr(options, NULL); | |
0fbe8c74 | 99 | if (options->pid_file == NULL) |
100 | options->pid_file = SSH_DAEMON_PID_FILE; | |
5260325f | 101 | if (options->server_key_bits == -1) |
102 | options->server_key_bits = 768; | |
103 | if (options->login_grace_time == -1) | |
104 | options->login_grace_time = 600; | |
105 | if (options->key_regeneration_time == -1) | |
106 | options->key_regeneration_time = 3600; | |
107 | if (options->permit_root_login == -1) | |
108 | options->permit_root_login = 1; /* yes */ | |
109 | if (options->ignore_rhosts == -1) | |
c8d54615 | 110 | options->ignore_rhosts = 1; |
5260325f | 111 | if (options->ignore_user_known_hosts == -1) |
112 | options->ignore_user_known_hosts = 0; | |
113 | if (options->check_mail == -1) | |
114 | options->check_mail = 0; | |
115 | if (options->print_motd == -1) | |
116 | options->print_motd = 1; | |
117 | if (options->x11_forwarding == -1) | |
c8d54615 | 118 | options->x11_forwarding = 0; |
5260325f | 119 | if (options->x11_display_offset == -1) |
c8d54615 | 120 | options->x11_display_offset = 10; |
fa649821 | 121 | #ifdef XAUTH_PATH |
122 | if (options->xauth_location == NULL) | |
123 | options->xauth_location = XAUTH_PATH; | |
124 | #endif /* XAUTH_PATH */ | |
5260325f | 125 | if (options->strict_modes == -1) |
126 | options->strict_modes = 1; | |
127 | if (options->keepalives == -1) | |
128 | options->keepalives = 1; | |
129 | if (options->log_facility == (SyslogFacility) (-1)) | |
130 | options->log_facility = SYSLOG_FACILITY_AUTH; | |
131 | if (options->log_level == (LogLevel) (-1)) | |
bbcf899f | 132 | options->log_level = SYSLOG_LEVEL_NOTICE; |
5260325f | 133 | if (options->rhosts_authentication == -1) |
134 | options->rhosts_authentication = 0; | |
135 | if (options->rhosts_rsa_authentication == -1) | |
c8d54615 | 136 | options->rhosts_rsa_authentication = 0; |
5260325f | 137 | if (options->rsa_authentication == -1) |
138 | options->rsa_authentication = 1; | |
fa08c86b | 139 | if (options->pubkey_authentication == -1) |
140 | options->pubkey_authentication = 1; | |
8efc0c15 | 141 | #ifdef KRB4 |
5260325f | 142 | if (options->kerberos_authentication == -1) |
143 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); | |
144 | if (options->kerberos_or_local_passwd == -1) | |
145 | options->kerberos_or_local_passwd = 1; | |
146 | if (options->kerberos_ticket_cleanup == -1) | |
147 | options->kerberos_ticket_cleanup = 1; | |
8efc0c15 | 148 | #endif /* KRB4 */ |
149 | #ifdef AFS | |
5260325f | 150 | if (options->kerberos_tgt_passing == -1) |
151 | options->kerberos_tgt_passing = 0; | |
152 | if (options->afs_token_passing == -1) | |
153 | options->afs_token_passing = k_hasafs(); | |
8efc0c15 | 154 | #endif /* AFS */ |
5260325f | 155 | if (options->password_authentication == -1) |
156 | options->password_authentication = 1; | |
94ec8c6b | 157 | if (options->kbd_interactive_authentication == -1) |
158 | options->kbd_interactive_authentication = 0; | |
8efc0c15 | 159 | #ifdef SKEY |
5260325f | 160 | if (options->skey_authentication == -1) |
161 | options->skey_authentication = 1; | |
8efc0c15 | 162 | #endif |
5260325f | 163 | if (options->permit_empty_passwd == -1) |
c8d54615 | 164 | options->permit_empty_passwd = 0; |
5260325f | 165 | if (options->use_login == -1) |
166 | options->use_login = 0; | |
33de75a3 | 167 | if (options->allow_tcp_forwarding == -1) |
168 | options->allow_tcp_forwarding = 1; | |
1d1ffb87 | 169 | if (options->gateway_ports == -1) |
170 | options->gateway_ports = 0; | |
089fbbd2 | 171 | if (options->max_startups == -1) |
172 | options->max_startups = 10; | |
c345cf9d | 173 | if (options->max_startups_rate == -1) |
174 | options->max_startups_rate = 100; /* 100% */ | |
175 | if (options->max_startups_begin == -1) | |
176 | options->max_startups_begin = options->max_startups; | |
8efc0c15 | 177 | } |
178 | ||
8efc0c15 | 179 | /* Keyword tokens. */ |
5260325f | 180 | typedef enum { |
181 | sBadOption, /* == unknown option */ | |
182 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
183 | sPermitRootLogin, sLogFacility, sLogLevel, | |
184 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 185 | #ifdef KRB4 |
5260325f | 186 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 187 | #endif |
188 | #ifdef AFS | |
5260325f | 189 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 190 | #endif |
191 | #ifdef SKEY | |
5260325f | 192 | sSkeyAuthentication, |
8efc0c15 | 193 | #endif |
94ec8c6b | 194 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, |
5260325f | 195 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, |
196 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
33de75a3 | 197 | sUseLogin, sAllowTcpForwarding, |
198 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
fa08c86b | 199 | sIgnoreUserKnownHosts, sCiphers, sProtocol, sPidFile, |
200 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups, | |
8efc0c15 | 201 | } ServerOpCodes; |
202 | ||
203 | /* Textual representation of the tokens. */ | |
5260325f | 204 | static struct { |
205 | const char *name; | |
206 | ServerOpCodes opcode; | |
207 | } keywords[] = { | |
208 | { "port", sPort }, | |
209 | { "hostkey", sHostKeyFile }, | |
fa08c86b | 210 | { "hostdsakey", sHostKeyFile }, /* alias */ |
0fbe8c74 | 211 | { "pidfile", sPidFile }, |
5260325f | 212 | { "serverkeybits", sServerKeyBits }, |
213 | { "logingracetime", sLoginGraceTime }, | |
214 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
215 | { "permitrootlogin", sPermitRootLogin }, | |
216 | { "syslogfacility", sLogFacility }, | |
217 | { "loglevel", sLogLevel }, | |
218 | { "rhostsauthentication", sRhostsAuthentication }, | |
219 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
220 | { "rsaauthentication", sRSAAuthentication }, | |
fa08c86b | 221 | { "pubkeyauthentication", sPubkeyAuthentication }, |
222 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
8efc0c15 | 223 | #ifdef KRB4 |
5260325f | 224 | { "kerberosauthentication", sKerberosAuthentication }, |
225 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
226 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 227 | #endif |
228 | #ifdef AFS | |
5260325f | 229 | { "kerberostgtpassing", sKerberosTgtPassing }, |
230 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 231 | #endif |
5260325f | 232 | { "passwordauthentication", sPasswordAuthentication }, |
94ec8c6b | 233 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, |
8efc0c15 | 234 | #ifdef SKEY |
5260325f | 235 | { "skeyauthentication", sSkeyAuthentication }, |
8efc0c15 | 236 | #endif |
5260325f | 237 | { "checkmail", sCheckMail }, |
238 | { "listenaddress", sListenAddress }, | |
239 | { "printmotd", sPrintMotd }, | |
240 | { "ignorerhosts", sIgnoreRhosts }, | |
241 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
242 | { "x11forwarding", sX11Forwarding }, | |
243 | { "x11displayoffset", sX11DisplayOffset }, | |
fa649821 | 244 | { "xauthlocation", sXAuthLocation }, |
5260325f | 245 | { "strictmodes", sStrictModes }, |
246 | { "permitemptypasswords", sEmptyPasswd }, | |
247 | { "uselogin", sUseLogin }, | |
248 | { "randomseed", sRandomSeedFile }, | |
249 | { "keepalive", sKeepAlives }, | |
33de75a3 | 250 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 251 | { "allowusers", sAllowUsers }, |
252 | { "denyusers", sDenyUsers }, | |
253 | { "allowgroups", sAllowGroups }, | |
254 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 255 | { "ciphers", sCiphers }, |
256 | { "protocol", sProtocol }, | |
1d1ffb87 | 257 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 258 | { "subsystem", sSubsystem }, |
089fbbd2 | 259 | { "maxstartups", sMaxStartups }, |
5260325f | 260 | { NULL, 0 } |
8efc0c15 | 261 | }; |
262 | ||
aa3378df | 263 | /* |
264 | * Returns the number of the token pointed to by cp of length len. Never | |
265 | * returns if the token is not known. | |
266 | */ | |
8efc0c15 | 267 | |
6ae2364d | 268 | static ServerOpCodes |
5260325f | 269 | parse_token(const char *cp, const char *filename, |
270 | int linenum) | |
8efc0c15 | 271 | { |
1e3b8b07 | 272 | u_int i; |
8efc0c15 | 273 | |
5260325f | 274 | for (i = 0; keywords[i].name; i++) |
aa3378df | 275 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 276 | return keywords[i].opcode; |
8efc0c15 | 277 | |
5260325f | 278 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
279 | filename, linenum, cp); | |
280 | return sBadOption; | |
8efc0c15 | 281 | } |
282 | ||
48e671d5 | 283 | /* |
284 | * add listen address | |
285 | */ | |
6ae2364d | 286 | void |
48e671d5 | 287 | add_listen_addr(ServerOptions *options, char *addr) |
288 | { | |
289 | extern int IPv4or6; | |
290 | struct addrinfo hints, *ai, *aitop; | |
291 | char strport[NI_MAXSERV]; | |
292 | int gaierr; | |
293 | int i; | |
294 | ||
295 | if (options->num_ports == 0) | |
296 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
297 | for (i = 0; i < options->num_ports; i++) { | |
298 | memset(&hints, 0, sizeof(hints)); | |
299 | hints.ai_family = IPv4or6; | |
300 | hints.ai_socktype = SOCK_STREAM; | |
301 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
302 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
303 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
304 | fatal("bad addr or host: %s (%s)\n", | |
305 | addr ? addr : "<NULL>", | |
306 | gai_strerror(gaierr)); | |
307 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
308 | ; | |
309 | ai->ai_next = options->listen_addrs; | |
310 | options->listen_addrs = aitop; | |
311 | } | |
312 | } | |
313 | ||
8efc0c15 | 314 | /* Reads the server configuration file. */ |
315 | ||
6ae2364d | 316 | void |
5260325f | 317 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 318 | { |
5260325f | 319 | FILE *f; |
320 | char line[1024]; | |
089fbbd2 | 321 | char *cp, **charptr, *arg; |
5260325f | 322 | int linenum, *intptr, value; |
323 | int bad_options = 0; | |
324 | ServerOpCodes opcode; | |
38c295d6 | 325 | int i; |
5260325f | 326 | |
327 | f = fopen(filename, "r"); | |
328 | if (!f) { | |
329 | perror(filename); | |
8efc0c15 | 330 | exit(1); |
5260325f | 331 | } |
332 | linenum = 0; | |
333 | while (fgets(line, sizeof(line), f)) { | |
334 | linenum++; | |
704b1659 | 335 | cp = line; |
336 | arg = strdelim(&cp); | |
337 | /* Ignore leading whitespace */ | |
338 | if (*arg == '\0') | |
339 | arg = strdelim(&cp); | |
340 | if (!*arg || *arg == '#') | |
5260325f | 341 | continue; |
fa08c86b | 342 | intptr = NULL; |
343 | charptr = NULL; | |
089fbbd2 | 344 | opcode = parse_token(arg, filename, linenum); |
5260325f | 345 | switch (opcode) { |
346 | case sBadOption: | |
347 | bad_options++; | |
348 | continue; | |
349 | case sPort: | |
48e671d5 | 350 | /* ignore ports from configfile if cmdline specifies ports */ |
351 | if (options->ports_from_cmdline) | |
352 | continue; | |
353 | if (options->listen_addrs != NULL) | |
354 | fatal("%s line %d: ports must be specified before " | |
355 | "ListenAdress.\n", filename, linenum); | |
356 | if (options->num_ports >= MAX_PORTS) | |
357 | fatal("%s line %d: too many ports.\n", | |
6ae2364d | 358 | filename, linenum); |
704b1659 | 359 | arg = strdelim(&cp); |
089fbbd2 | 360 | if (!arg || *arg == '\0') |
48e671d5 | 361 | fatal("%s line %d: missing port number.\n", |
362 | filename, linenum); | |
089fbbd2 | 363 | options->ports[options->num_ports++] = atoi(arg); |
48e671d5 | 364 | break; |
365 | ||
366 | case sServerKeyBits: | |
367 | intptr = &options->server_key_bits; | |
5260325f | 368 | parse_int: |
704b1659 | 369 | arg = strdelim(&cp); |
089fbbd2 | 370 | if (!arg || *arg == '\0') { |
5260325f | 371 | fprintf(stderr, "%s line %d: missing integer value.\n", |
372 | filename, linenum); | |
373 | exit(1); | |
374 | } | |
089fbbd2 | 375 | value = atoi(arg); |
5260325f | 376 | if (*intptr == -1) |
377 | *intptr = value; | |
378 | break; | |
379 | ||
5260325f | 380 | case sLoginGraceTime: |
381 | intptr = &options->login_grace_time; | |
382 | goto parse_int; | |
383 | ||
384 | case sKeyRegenerationTime: | |
385 | intptr = &options->key_regeneration_time; | |
386 | goto parse_int; | |
387 | ||
388 | case sListenAddress: | |
704b1659 | 389 | arg = strdelim(&cp); |
089fbbd2 | 390 | if (!arg || *arg == '\0') |
48e671d5 | 391 | fatal("%s line %d: missing inet addr.\n", |
392 | filename, linenum); | |
089fbbd2 | 393 | add_listen_addr(options, arg); |
5260325f | 394 | break; |
395 | ||
396 | case sHostKeyFile: | |
fa08c86b | 397 | intptr = &options->num_host_key_files; |
398 | if (*intptr >= MAX_HOSTKEYS) { | |
399 | fprintf(stderr, "%s line %d: to many host keys specified (max %d).\n", | |
400 | filename, linenum, MAX_HOSTKEYS); | |
401 | exit(1); | |
402 | } | |
403 | charptr = &options->host_key_files[*intptr]; | |
fa649821 | 404 | parse_filename: |
704b1659 | 405 | arg = strdelim(&cp); |
089fbbd2 | 406 | if (!arg || *arg == '\0') { |
5260325f | 407 | fprintf(stderr, "%s line %d: missing file name.\n", |
0fbe8c74 | 408 | filename, linenum); |
409 | exit(1); | |
410 | } | |
fa08c86b | 411 | if (*charptr == NULL) { |
089fbbd2 | 412 | *charptr = tilde_expand_filename(arg, getuid()); |
fa08c86b | 413 | /* increase optional counter */ |
414 | if (intptr != NULL) | |
415 | *intptr = *intptr + 1; | |
416 | } | |
0fbe8c74 | 417 | break; |
418 | ||
419 | case sPidFile: | |
420 | charptr = &options->pid_file; | |
fa649821 | 421 | goto parse_filename; |
5260325f | 422 | |
423 | case sRandomSeedFile: | |
424 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
425 | filename, linenum); | |
704b1659 | 426 | arg = strdelim(&cp); |
5260325f | 427 | break; |
428 | ||
429 | case sPermitRootLogin: | |
430 | intptr = &options->permit_root_login; | |
704b1659 | 431 | arg = strdelim(&cp); |
089fbbd2 | 432 | if (!arg || *arg == '\0') { |
5260325f | 433 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
434 | filename, linenum); | |
435 | exit(1); | |
436 | } | |
089fbbd2 | 437 | if (strcmp(arg, "without-password") == 0) |
5260325f | 438 | value = 2; |
089fbbd2 | 439 | else if (strcmp(arg, "yes") == 0) |
5260325f | 440 | value = 1; |
089fbbd2 | 441 | else if (strcmp(arg, "no") == 0) |
5260325f | 442 | value = 0; |
443 | else { | |
444 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
089fbbd2 | 445 | filename, linenum, arg); |
5260325f | 446 | exit(1); |
447 | } | |
448 | if (*intptr == -1) | |
449 | *intptr = value; | |
450 | break; | |
451 | ||
452 | case sIgnoreRhosts: | |
453 | intptr = &options->ignore_rhosts; | |
454 | parse_flag: | |
704b1659 | 455 | arg = strdelim(&cp); |
089fbbd2 | 456 | if (!arg || *arg == '\0') { |
5260325f | 457 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
458 | filename, linenum); | |
459 | exit(1); | |
460 | } | |
089fbbd2 | 461 | if (strcmp(arg, "yes") == 0) |
5260325f | 462 | value = 1; |
089fbbd2 | 463 | else if (strcmp(arg, "no") == 0) |
5260325f | 464 | value = 0; |
465 | else { | |
466 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
089fbbd2 | 467 | filename, linenum, arg); |
5260325f | 468 | exit(1); |
469 | } | |
470 | if (*intptr == -1) | |
471 | *intptr = value; | |
472 | break; | |
473 | ||
474 | case sIgnoreUserKnownHosts: | |
475 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 476 | goto parse_flag; |
5260325f | 477 | |
478 | case sRhostsAuthentication: | |
479 | intptr = &options->rhosts_authentication; | |
480 | goto parse_flag; | |
481 | ||
482 | case sRhostsRSAAuthentication: | |
483 | intptr = &options->rhosts_rsa_authentication; | |
484 | goto parse_flag; | |
485 | ||
486 | case sRSAAuthentication: | |
487 | intptr = &options->rsa_authentication; | |
488 | goto parse_flag; | |
489 | ||
fa08c86b | 490 | case sPubkeyAuthentication: |
491 | intptr = &options->pubkey_authentication; | |
1d1ffb87 | 492 | goto parse_flag; |
493 | ||
8efc0c15 | 494 | #ifdef KRB4 |
5260325f | 495 | case sKerberosAuthentication: |
496 | intptr = &options->kerberos_authentication; | |
497 | goto parse_flag; | |
498 | ||
499 | case sKerberosOrLocalPasswd: | |
500 | intptr = &options->kerberos_or_local_passwd; | |
501 | goto parse_flag; | |
502 | ||
503 | case sKerberosTicketCleanup: | |
504 | intptr = &options->kerberos_ticket_cleanup; | |
505 | goto parse_flag; | |
8efc0c15 | 506 | #endif |
5260325f | 507 | |
8efc0c15 | 508 | #ifdef AFS |
5260325f | 509 | case sKerberosTgtPassing: |
510 | intptr = &options->kerberos_tgt_passing; | |
511 | goto parse_flag; | |
8efc0c15 | 512 | |
5260325f | 513 | case sAFSTokenPassing: |
514 | intptr = &options->afs_token_passing; | |
515 | goto parse_flag; | |
8efc0c15 | 516 | #endif |
517 | ||
5260325f | 518 | case sPasswordAuthentication: |
519 | intptr = &options->password_authentication; | |
520 | goto parse_flag; | |
8efc0c15 | 521 | |
94ec8c6b | 522 | case sKbdInteractiveAuthentication: |
523 | intptr = &options->kbd_interactive_authentication; | |
524 | goto parse_flag; | |
525 | ||
5260325f | 526 | case sCheckMail: |
527 | intptr = &options->check_mail; | |
528 | goto parse_flag; | |
8efc0c15 | 529 | |
530 | #ifdef SKEY | |
5260325f | 531 | case sSkeyAuthentication: |
532 | intptr = &options->skey_authentication; | |
533 | goto parse_flag; | |
8efc0c15 | 534 | #endif |
535 | ||
5260325f | 536 | case sPrintMotd: |
537 | intptr = &options->print_motd; | |
538 | goto parse_flag; | |
539 | ||
540 | case sX11Forwarding: | |
541 | intptr = &options->x11_forwarding; | |
542 | goto parse_flag; | |
543 | ||
544 | case sX11DisplayOffset: | |
545 | intptr = &options->x11_display_offset; | |
546 | goto parse_int; | |
547 | ||
fa649821 | 548 | case sXAuthLocation: |
549 | charptr = &options->xauth_location; | |
550 | goto parse_filename; | |
551 | ||
5260325f | 552 | case sStrictModes: |
553 | intptr = &options->strict_modes; | |
554 | goto parse_flag; | |
555 | ||
556 | case sKeepAlives: | |
557 | intptr = &options->keepalives; | |
558 | goto parse_flag; | |
559 | ||
560 | case sEmptyPasswd: | |
561 | intptr = &options->permit_empty_passwd; | |
562 | goto parse_flag; | |
563 | ||
564 | case sUseLogin: | |
565 | intptr = &options->use_login; | |
566 | goto parse_flag; | |
567 | ||
1d1ffb87 | 568 | case sGatewayPorts: |
569 | intptr = &options->gateway_ports; | |
570 | goto parse_flag; | |
571 | ||
5260325f | 572 | case sLogFacility: |
573 | intptr = (int *) &options->log_facility; | |
704b1659 | 574 | arg = strdelim(&cp); |
089fbbd2 | 575 | value = log_facility_number(arg); |
5260325f | 576 | if (value == (SyslogFacility) - 1) |
577 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
089fbbd2 | 578 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 579 | if (*intptr == -1) |
580 | *intptr = (SyslogFacility) value; | |
581 | break; | |
582 | ||
583 | case sLogLevel: | |
584 | intptr = (int *) &options->log_level; | |
704b1659 | 585 | arg = strdelim(&cp); |
089fbbd2 | 586 | value = log_level_number(arg); |
5260325f | 587 | if (value == (LogLevel) - 1) |
588 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
089fbbd2 | 589 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 590 | if (*intptr == -1) |
591 | *intptr = (LogLevel) value; | |
592 | break; | |
593 | ||
33de75a3 | 594 | case sAllowTcpForwarding: |
595 | intptr = &options->allow_tcp_forwarding; | |
596 | goto parse_flag; | |
597 | ||
5260325f | 598 | case sAllowUsers: |
704b1659 | 599 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 600 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
601 | fatal("%s line %d: too many allow users.\n", | |
602 | filename, linenum); | |
089fbbd2 | 603 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
5260325f | 604 | } |
605 | break; | |
606 | ||
607 | case sDenyUsers: | |
704b1659 | 608 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 609 | if (options->num_deny_users >= MAX_DENY_USERS) |
610 | fatal( "%s line %d: too many deny users.\n", | |
611 | filename, linenum); | |
089fbbd2 | 612 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
5260325f | 613 | } |
614 | break; | |
615 | ||
616 | case sAllowGroups: | |
704b1659 | 617 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 618 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
619 | fatal("%s line %d: too many allow groups.\n", | |
620 | filename, linenum); | |
089fbbd2 | 621 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
5260325f | 622 | } |
623 | break; | |
624 | ||
625 | case sDenyGroups: | |
704b1659 | 626 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 627 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
628 | fatal("%s line %d: too many deny groups.\n", | |
629 | filename, linenum); | |
089fbbd2 | 630 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
5260325f | 631 | } |
632 | break; | |
633 | ||
a8be9f80 | 634 | case sCiphers: |
704b1659 | 635 | arg = strdelim(&cp); |
089fbbd2 | 636 | if (!arg || *arg == '\0') |
71276795 | 637 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 638 | if (!ciphers_valid(arg)) |
d0c832f3 | 639 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
089fbbd2 | 640 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 641 | if (options->ciphers == NULL) |
089fbbd2 | 642 | options->ciphers = xstrdup(arg); |
a8be9f80 | 643 | break; |
644 | ||
645 | case sProtocol: | |
646 | intptr = &options->protocol; | |
704b1659 | 647 | arg = strdelim(&cp); |
089fbbd2 | 648 | if (!arg || *arg == '\0') |
71276795 | 649 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 650 | value = proto_spec(arg); |
a8be9f80 | 651 | if (value == SSH_PROTO_UNKNOWN) |
652 | fatal("%s line %d: Bad protocol spec '%s'.", | |
089fbbd2 | 653 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 654 | if (*intptr == SSH_PROTO_UNKNOWN) |
655 | *intptr = value; | |
656 | break; | |
657 | ||
38c295d6 | 658 | case sSubsystem: |
659 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { | |
660 | fatal("%s line %d: too many subsystems defined.", | |
661 | filename, linenum); | |
662 | } | |
704b1659 | 663 | arg = strdelim(&cp); |
089fbbd2 | 664 | if (!arg || *arg == '\0') |
38c295d6 | 665 | fatal("%s line %d: Missing subsystem name.", |
666 | filename, linenum); | |
667 | for (i = 0; i < options->num_subsystems; i++) | |
089fbbd2 | 668 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
38c295d6 | 669 | fatal("%s line %d: Subsystem '%s' already defined.", |
089fbbd2 | 670 | filename, linenum, arg); |
671 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
704b1659 | 672 | arg = strdelim(&cp); |
089fbbd2 | 673 | if (!arg || *arg == '\0') |
38c295d6 | 674 | fatal("%s line %d: Missing subsystem command.", |
675 | filename, linenum); | |
089fbbd2 | 676 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
38c295d6 | 677 | options->num_subsystems++; |
678 | break; | |
679 | ||
089fbbd2 | 680 | case sMaxStartups: |
c345cf9d | 681 | arg = strdelim(&cp); |
682 | if (!arg || *arg == '\0') | |
683 | fatal("%s line %d: Missing MaxStartups spec.", | |
684 | filename, linenum); | |
685 | if (sscanf(arg, "%d:%d:%d", | |
686 | &options->max_startups_begin, | |
687 | &options->max_startups_rate, | |
688 | &options->max_startups) == 3) { | |
689 | if (options->max_startups_begin > | |
690 | options->max_startups || | |
691 | options->max_startups_rate > 100 || | |
692 | options->max_startups_rate < 1) | |
693 | fatal("%s line %d: Illegal MaxStartups spec.", | |
694 | filename, linenum); | |
695 | break; | |
696 | } | |
089fbbd2 | 697 | intptr = &options->max_startups; |
698 | goto parse_int; | |
699 | ||
5260325f | 700 | default: |
701 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
089fbbd2 | 702 | filename, linenum, arg, opcode); |
5260325f | 703 | exit(1); |
8efc0c15 | 704 | } |
704b1659 | 705 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
089fbbd2 | 706 | fprintf(stderr, |
707 | "%s line %d: garbage at end of line; \"%.200s\".\n", | |
708 | filename, linenum, arg); | |
5260325f | 709 | exit(1); |
8efc0c15 | 710 | } |
8efc0c15 | 711 | } |
5260325f | 712 | fclose(f); |
713 | if (bad_options > 0) { | |
714 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
715 | filename, bad_options); | |
716 | exit(1); | |
8efc0c15 | 717 | } |
8efc0c15 | 718 | } |