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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" | |
33de75a3 | 13 | RCSID("$OpenBSD: servconf.c,v 1.53 2000/10/14 12:12:09 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; | |
5260325f | 32 | options->host_key_file = NULL; |
1d1ffb87 | 33 | options->host_dsa_key_file = NULL; |
0fbe8c74 | 34 | options->pid_file = NULL; |
5260325f | 35 | options->server_key_bits = -1; |
36 | options->login_grace_time = -1; | |
37 | options->key_regeneration_time = -1; | |
38 | options->permit_root_login = -1; | |
39 | options->ignore_rhosts = -1; | |
40 | options->ignore_user_known_hosts = -1; | |
41 | options->print_motd = -1; | |
42 | options->check_mail = -1; | |
43 | options->x11_forwarding = -1; | |
44 | options->x11_display_offset = -1; | |
fa649821 | 45 | options->xauth_location = NULL; |
5260325f | 46 | options->strict_modes = -1; |
47 | options->keepalives = -1; | |
48 | options->log_facility = (SyslogFacility) - 1; | |
49 | options->log_level = (LogLevel) - 1; | |
50 | options->rhosts_authentication = -1; | |
51 | options->rhosts_rsa_authentication = -1; | |
52 | options->rsa_authentication = -1; | |
1d1ffb87 | 53 | options->dsa_authentication = -1; |
8efc0c15 | 54 | #ifdef KRB4 |
5260325f | 55 | options->kerberos_authentication = -1; |
56 | options->kerberos_or_local_passwd = -1; | |
57 | options->kerberos_ticket_cleanup = -1; | |
8efc0c15 | 58 | #endif |
59 | #ifdef AFS | |
5260325f | 60 | options->kerberos_tgt_passing = -1; |
61 | options->afs_token_passing = -1; | |
8efc0c15 | 62 | #endif |
5260325f | 63 | options->password_authentication = -1; |
94ec8c6b | 64 | options->kbd_interactive_authentication = -1; |
8efc0c15 | 65 | #ifdef SKEY |
5260325f | 66 | options->skey_authentication = -1; |
8efc0c15 | 67 | #endif |
5260325f | 68 | options->permit_empty_passwd = -1; |
69 | options->use_login = -1; | |
33de75a3 | 70 | options->allow_tcp_forwarding = -1; |
5260325f | 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; | |
94ec8c6b | 153 | if (options->kbd_interactive_authentication == -1) |
154 | options->kbd_interactive_authentication = 0; | |
8efc0c15 | 155 | #ifdef SKEY |
5260325f | 156 | if (options->skey_authentication == -1) |
157 | options->skey_authentication = 1; | |
8efc0c15 | 158 | #endif |
5260325f | 159 | if (options->permit_empty_passwd == -1) |
c8d54615 | 160 | options->permit_empty_passwd = 0; |
5260325f | 161 | if (options->use_login == -1) |
162 | options->use_login = 0; | |
33de75a3 | 163 | if (options->allow_tcp_forwarding == -1) |
164 | options->allow_tcp_forwarding = 1; | |
a8be9f80 | 165 | if (options->protocol == SSH_PROTO_UNKNOWN) |
a306f2dd | 166 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; |
1d1ffb87 | 167 | if (options->gateway_ports == -1) |
168 | options->gateway_ports = 0; | |
089fbbd2 | 169 | if (options->max_startups == -1) |
170 | options->max_startups = 10; | |
c345cf9d | 171 | if (options->max_startups_rate == -1) |
172 | options->max_startups_rate = 100; /* 100% */ | |
173 | if (options->max_startups_begin == -1) | |
174 | options->max_startups_begin = options->max_startups; | |
8efc0c15 | 175 | } |
176 | ||
8efc0c15 | 177 | /* Keyword tokens. */ |
5260325f | 178 | typedef enum { |
179 | sBadOption, /* == unknown option */ | |
180 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
181 | sPermitRootLogin, sLogFacility, sLogLevel, | |
182 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, | |
8efc0c15 | 183 | #ifdef KRB4 |
5260325f | 184 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
8efc0c15 | 185 | #endif |
186 | #ifdef AFS | |
5260325f | 187 | sKerberosTgtPassing, sAFSTokenPassing, |
8efc0c15 | 188 | #endif |
189 | #ifdef SKEY | |
5260325f | 190 | sSkeyAuthentication, |
8efc0c15 | 191 | #endif |
94ec8c6b | 192 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, |
5260325f | 193 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, |
194 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, | |
33de75a3 | 195 | sUseLogin, sAllowTcpForwarding, |
196 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, | |
1d1ffb87 | 197 | sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile, |
089fbbd2 | 198 | sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups |
8efc0c15 | 199 | } ServerOpCodes; |
200 | ||
201 | /* Textual representation of the tokens. */ | |
5260325f | 202 | static struct { |
203 | const char *name; | |
204 | ServerOpCodes opcode; | |
205 | } keywords[] = { | |
206 | { "port", sPort }, | |
207 | { "hostkey", sHostKeyFile }, | |
1d1ffb87 | 208 | { "hostdsakey", sHostDSAKeyFile }, |
0fbe8c74 | 209 | { "pidfile", sPidFile }, |
5260325f | 210 | { "serverkeybits", sServerKeyBits }, |
211 | { "logingracetime", sLoginGraceTime }, | |
212 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
213 | { "permitrootlogin", sPermitRootLogin }, | |
214 | { "syslogfacility", sLogFacility }, | |
215 | { "loglevel", sLogLevel }, | |
216 | { "rhostsauthentication", sRhostsAuthentication }, | |
217 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, | |
218 | { "rsaauthentication", sRSAAuthentication }, | |
1d1ffb87 | 219 | { "dsaauthentication", sDSAAuthentication }, |
8efc0c15 | 220 | #ifdef KRB4 |
5260325f | 221 | { "kerberosauthentication", sKerberosAuthentication }, |
222 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
223 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
8efc0c15 | 224 | #endif |
225 | #ifdef AFS | |
5260325f | 226 | { "kerberostgtpassing", sKerberosTgtPassing }, |
227 | { "afstokenpassing", sAFSTokenPassing }, | |
8efc0c15 | 228 | #endif |
5260325f | 229 | { "passwordauthentication", sPasswordAuthentication }, |
94ec8c6b | 230 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, |
8efc0c15 | 231 | #ifdef SKEY |
5260325f | 232 | { "skeyauthentication", sSkeyAuthentication }, |
8efc0c15 | 233 | #endif |
5260325f | 234 | { "checkmail", sCheckMail }, |
235 | { "listenaddress", sListenAddress }, | |
236 | { "printmotd", sPrintMotd }, | |
237 | { "ignorerhosts", sIgnoreRhosts }, | |
238 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
239 | { "x11forwarding", sX11Forwarding }, | |
240 | { "x11displayoffset", sX11DisplayOffset }, | |
fa649821 | 241 | { "xauthlocation", sXAuthLocation }, |
5260325f | 242 | { "strictmodes", sStrictModes }, |
243 | { "permitemptypasswords", sEmptyPasswd }, | |
244 | { "uselogin", sUseLogin }, | |
245 | { "randomseed", sRandomSeedFile }, | |
246 | { "keepalive", sKeepAlives }, | |
33de75a3 | 247 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 248 | { "allowusers", sAllowUsers }, |
249 | { "denyusers", sDenyUsers }, | |
250 | { "allowgroups", sAllowGroups }, | |
251 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 252 | { "ciphers", sCiphers }, |
253 | { "protocol", sProtocol }, | |
1d1ffb87 | 254 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 255 | { "subsystem", sSubsystem }, |
089fbbd2 | 256 | { "maxstartups", sMaxStartups }, |
5260325f | 257 | { NULL, 0 } |
8efc0c15 | 258 | }; |
259 | ||
aa3378df | 260 | /* |
261 | * Returns the number of the token pointed to by cp of length len. Never | |
262 | * returns if the token is not known. | |
263 | */ | |
8efc0c15 | 264 | |
6ae2364d | 265 | static ServerOpCodes |
5260325f | 266 | parse_token(const char *cp, const char *filename, |
267 | int linenum) | |
8efc0c15 | 268 | { |
5260325f | 269 | unsigned int i; |
8efc0c15 | 270 | |
5260325f | 271 | for (i = 0; keywords[i].name; i++) |
aa3378df | 272 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 273 | return keywords[i].opcode; |
8efc0c15 | 274 | |
5260325f | 275 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
276 | filename, linenum, cp); | |
277 | return sBadOption; | |
8efc0c15 | 278 | } |
279 | ||
48e671d5 | 280 | /* |
281 | * add listen address | |
282 | */ | |
6ae2364d | 283 | void |
48e671d5 | 284 | add_listen_addr(ServerOptions *options, char *addr) |
285 | { | |
286 | extern int IPv4or6; | |
287 | struct addrinfo hints, *ai, *aitop; | |
288 | char strport[NI_MAXSERV]; | |
289 | int gaierr; | |
290 | int i; | |
291 | ||
292 | if (options->num_ports == 0) | |
293 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
294 | for (i = 0; i < options->num_ports; i++) { | |
295 | memset(&hints, 0, sizeof(hints)); | |
296 | hints.ai_family = IPv4or6; | |
297 | hints.ai_socktype = SOCK_STREAM; | |
298 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
299 | snprintf(strport, sizeof strport, "%d", options->ports[i]); | |
300 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) | |
301 | fatal("bad addr or host: %s (%s)\n", | |
302 | addr ? addr : "<NULL>", | |
303 | gai_strerror(gaierr)); | |
304 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
305 | ; | |
306 | ai->ai_next = options->listen_addrs; | |
307 | options->listen_addrs = aitop; | |
308 | } | |
309 | } | |
310 | ||
8efc0c15 | 311 | /* Reads the server configuration file. */ |
312 | ||
6ae2364d | 313 | void |
5260325f | 314 | read_server_config(ServerOptions *options, const char *filename) |
8efc0c15 | 315 | { |
5260325f | 316 | FILE *f; |
317 | char line[1024]; | |
089fbbd2 | 318 | char *cp, **charptr, *arg; |
5260325f | 319 | int linenum, *intptr, value; |
320 | int bad_options = 0; | |
321 | ServerOpCodes opcode; | |
38c295d6 | 322 | int i; |
5260325f | 323 | |
324 | f = fopen(filename, "r"); | |
325 | if (!f) { | |
326 | perror(filename); | |
8efc0c15 | 327 | exit(1); |
5260325f | 328 | } |
329 | linenum = 0; | |
330 | while (fgets(line, sizeof(line), f)) { | |
331 | linenum++; | |
704b1659 | 332 | cp = line; |
333 | arg = strdelim(&cp); | |
334 | /* Ignore leading whitespace */ | |
335 | if (*arg == '\0') | |
336 | arg = strdelim(&cp); | |
337 | if (!*arg || *arg == '#') | |
5260325f | 338 | continue; |
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: | |
1d1ffb87 | 392 | case sHostDSAKeyFile: |
e78a59f5 | 393 | charptr = (opcode == sHostKeyFile ) ? |
1d1ffb87 | 394 | &options->host_key_file : &options->host_dsa_key_file; |
fa649821 | 395 | parse_filename: |
704b1659 | 396 | arg = strdelim(&cp); |
089fbbd2 | 397 | if (!arg || *arg == '\0') { |
5260325f | 398 | fprintf(stderr, "%s line %d: missing file name.\n", |
0fbe8c74 | 399 | filename, linenum); |
400 | exit(1); | |
401 | } | |
402 | if (*charptr == NULL) | |
089fbbd2 | 403 | *charptr = tilde_expand_filename(arg, getuid()); |
0fbe8c74 | 404 | break; |
405 | ||
406 | case sPidFile: | |
407 | charptr = &options->pid_file; | |
fa649821 | 408 | goto parse_filename; |
5260325f | 409 | |
410 | case sRandomSeedFile: | |
411 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", | |
412 | filename, linenum); | |
704b1659 | 413 | arg = strdelim(&cp); |
5260325f | 414 | break; |
415 | ||
416 | case sPermitRootLogin: | |
417 | intptr = &options->permit_root_login; | |
704b1659 | 418 | arg = strdelim(&cp); |
089fbbd2 | 419 | if (!arg || *arg == '\0') { |
5260325f | 420 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
421 | filename, linenum); | |
422 | exit(1); | |
423 | } | |
089fbbd2 | 424 | if (strcmp(arg, "without-password") == 0) |
5260325f | 425 | value = 2; |
089fbbd2 | 426 | else if (strcmp(arg, "yes") == 0) |
5260325f | 427 | value = 1; |
089fbbd2 | 428 | else if (strcmp(arg, "no") == 0) |
5260325f | 429 | value = 0; |
430 | else { | |
431 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", | |
089fbbd2 | 432 | filename, linenum, arg); |
5260325f | 433 | exit(1); |
434 | } | |
435 | if (*intptr == -1) | |
436 | *intptr = value; | |
437 | break; | |
438 | ||
439 | case sIgnoreRhosts: | |
440 | intptr = &options->ignore_rhosts; | |
441 | parse_flag: | |
704b1659 | 442 | arg = strdelim(&cp); |
089fbbd2 | 443 | if (!arg || *arg == '\0') { |
5260325f | 444 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
445 | filename, linenum); | |
446 | exit(1); | |
447 | } | |
089fbbd2 | 448 | if (strcmp(arg, "yes") == 0) |
5260325f | 449 | value = 1; |
089fbbd2 | 450 | else if (strcmp(arg, "no") == 0) |
5260325f | 451 | value = 0; |
452 | else { | |
453 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", | |
089fbbd2 | 454 | filename, linenum, arg); |
5260325f | 455 | exit(1); |
456 | } | |
457 | if (*intptr == -1) | |
458 | *intptr = value; | |
459 | break; | |
460 | ||
461 | case sIgnoreUserKnownHosts: | |
462 | intptr = &options->ignore_user_known_hosts; | |
c8d54615 | 463 | goto parse_flag; |
5260325f | 464 | |
465 | case sRhostsAuthentication: | |
466 | intptr = &options->rhosts_authentication; | |
467 | goto parse_flag; | |
468 | ||
469 | case sRhostsRSAAuthentication: | |
470 | intptr = &options->rhosts_rsa_authentication; | |
471 | goto parse_flag; | |
472 | ||
473 | case sRSAAuthentication: | |
474 | intptr = &options->rsa_authentication; | |
475 | goto parse_flag; | |
476 | ||
1d1ffb87 | 477 | case sDSAAuthentication: |
478 | intptr = &options->dsa_authentication; | |
479 | goto parse_flag; | |
480 | ||
8efc0c15 | 481 | #ifdef KRB4 |
5260325f | 482 | case sKerberosAuthentication: |
483 | intptr = &options->kerberos_authentication; | |
484 | goto parse_flag; | |
485 | ||
486 | case sKerberosOrLocalPasswd: | |
487 | intptr = &options->kerberos_or_local_passwd; | |
488 | goto parse_flag; | |
489 | ||
490 | case sKerberosTicketCleanup: | |
491 | intptr = &options->kerberos_ticket_cleanup; | |
492 | goto parse_flag; | |
8efc0c15 | 493 | #endif |
5260325f | 494 | |
8efc0c15 | 495 | #ifdef AFS |
5260325f | 496 | case sKerberosTgtPassing: |
497 | intptr = &options->kerberos_tgt_passing; | |
498 | goto parse_flag; | |
8efc0c15 | 499 | |
5260325f | 500 | case sAFSTokenPassing: |
501 | intptr = &options->afs_token_passing; | |
502 | goto parse_flag; | |
8efc0c15 | 503 | #endif |
504 | ||
5260325f | 505 | case sPasswordAuthentication: |
506 | intptr = &options->password_authentication; | |
507 | goto parse_flag; | |
8efc0c15 | 508 | |
94ec8c6b | 509 | case sKbdInteractiveAuthentication: |
510 | intptr = &options->kbd_interactive_authentication; | |
511 | goto parse_flag; | |
512 | ||
5260325f | 513 | case sCheckMail: |
514 | intptr = &options->check_mail; | |
515 | goto parse_flag; | |
8efc0c15 | 516 | |
517 | #ifdef SKEY | |
5260325f | 518 | case sSkeyAuthentication: |
519 | intptr = &options->skey_authentication; | |
520 | goto parse_flag; | |
8efc0c15 | 521 | #endif |
522 | ||
5260325f | 523 | case sPrintMotd: |
524 | intptr = &options->print_motd; | |
525 | goto parse_flag; | |
526 | ||
527 | case sX11Forwarding: | |
528 | intptr = &options->x11_forwarding; | |
529 | goto parse_flag; | |
530 | ||
531 | case sX11DisplayOffset: | |
532 | intptr = &options->x11_display_offset; | |
533 | goto parse_int; | |
534 | ||
fa649821 | 535 | case sXAuthLocation: |
536 | charptr = &options->xauth_location; | |
537 | goto parse_filename; | |
538 | ||
5260325f | 539 | case sStrictModes: |
540 | intptr = &options->strict_modes; | |
541 | goto parse_flag; | |
542 | ||
543 | case sKeepAlives: | |
544 | intptr = &options->keepalives; | |
545 | goto parse_flag; | |
546 | ||
547 | case sEmptyPasswd: | |
548 | intptr = &options->permit_empty_passwd; | |
549 | goto parse_flag; | |
550 | ||
551 | case sUseLogin: | |
552 | intptr = &options->use_login; | |
553 | goto parse_flag; | |
554 | ||
1d1ffb87 | 555 | case sGatewayPorts: |
556 | intptr = &options->gateway_ports; | |
557 | goto parse_flag; | |
558 | ||
5260325f | 559 | case sLogFacility: |
560 | intptr = (int *) &options->log_facility; | |
704b1659 | 561 | arg = strdelim(&cp); |
089fbbd2 | 562 | value = log_facility_number(arg); |
5260325f | 563 | if (value == (SyslogFacility) - 1) |
564 | fatal("%.200s line %d: unsupported log facility '%s'\n", | |
089fbbd2 | 565 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 566 | if (*intptr == -1) |
567 | *intptr = (SyslogFacility) value; | |
568 | break; | |
569 | ||
570 | case sLogLevel: | |
571 | intptr = (int *) &options->log_level; | |
704b1659 | 572 | arg = strdelim(&cp); |
089fbbd2 | 573 | value = log_level_number(arg); |
5260325f | 574 | if (value == (LogLevel) - 1) |
575 | fatal("%.200s line %d: unsupported log level '%s'\n", | |
089fbbd2 | 576 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 577 | if (*intptr == -1) |
578 | *intptr = (LogLevel) value; | |
579 | break; | |
580 | ||
33de75a3 | 581 | case sAllowTcpForwarding: |
582 | intptr = &options->allow_tcp_forwarding; | |
583 | goto parse_flag; | |
584 | ||
5260325f | 585 | case sAllowUsers: |
704b1659 | 586 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 587 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
588 | fatal("%s line %d: too many allow users.\n", | |
589 | filename, linenum); | |
089fbbd2 | 590 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
5260325f | 591 | } |
592 | break; | |
593 | ||
594 | case sDenyUsers: | |
704b1659 | 595 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 596 | if (options->num_deny_users >= MAX_DENY_USERS) |
597 | fatal( "%s line %d: too many deny users.\n", | |
598 | filename, linenum); | |
089fbbd2 | 599 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
5260325f | 600 | } |
601 | break; | |
602 | ||
603 | case sAllowGroups: | |
704b1659 | 604 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 605 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
606 | fatal("%s line %d: too many allow groups.\n", | |
607 | filename, linenum); | |
089fbbd2 | 608 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
5260325f | 609 | } |
610 | break; | |
611 | ||
612 | case sDenyGroups: | |
704b1659 | 613 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
a8be9f80 | 614 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
615 | fatal("%s line %d: too many deny groups.\n", | |
616 | filename, linenum); | |
089fbbd2 | 617 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
5260325f | 618 | } |
619 | break; | |
620 | ||
a8be9f80 | 621 | case sCiphers: |
704b1659 | 622 | arg = strdelim(&cp); |
089fbbd2 | 623 | if (!arg || *arg == '\0') |
71276795 | 624 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 625 | if (!ciphers_valid(arg)) |
d0c832f3 | 626 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
089fbbd2 | 627 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 628 | if (options->ciphers == NULL) |
089fbbd2 | 629 | options->ciphers = xstrdup(arg); |
a8be9f80 | 630 | break; |
631 | ||
632 | case sProtocol: | |
633 | intptr = &options->protocol; | |
704b1659 | 634 | arg = strdelim(&cp); |
089fbbd2 | 635 | if (!arg || *arg == '\0') |
71276795 | 636 | fatal("%s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 637 | value = proto_spec(arg); |
a8be9f80 | 638 | if (value == SSH_PROTO_UNKNOWN) |
639 | fatal("%s line %d: Bad protocol spec '%s'.", | |
089fbbd2 | 640 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 641 | if (*intptr == SSH_PROTO_UNKNOWN) |
642 | *intptr = value; | |
643 | break; | |
644 | ||
38c295d6 | 645 | case sSubsystem: |
646 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { | |
647 | fatal("%s line %d: too many subsystems defined.", | |
648 | filename, linenum); | |
649 | } | |
704b1659 | 650 | arg = strdelim(&cp); |
089fbbd2 | 651 | if (!arg || *arg == '\0') |
38c295d6 | 652 | fatal("%s line %d: Missing subsystem name.", |
653 | filename, linenum); | |
654 | for (i = 0; i < options->num_subsystems; i++) | |
089fbbd2 | 655 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
38c295d6 | 656 | fatal("%s line %d: Subsystem '%s' already defined.", |
089fbbd2 | 657 | filename, linenum, arg); |
658 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
704b1659 | 659 | arg = strdelim(&cp); |
089fbbd2 | 660 | if (!arg || *arg == '\0') |
38c295d6 | 661 | fatal("%s line %d: Missing subsystem command.", |
662 | filename, linenum); | |
089fbbd2 | 663 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
38c295d6 | 664 | options->num_subsystems++; |
665 | break; | |
666 | ||
089fbbd2 | 667 | case sMaxStartups: |
c345cf9d | 668 | arg = strdelim(&cp); |
669 | if (!arg || *arg == '\0') | |
670 | fatal("%s line %d: Missing MaxStartups spec.", | |
671 | filename, linenum); | |
672 | if (sscanf(arg, "%d:%d:%d", | |
673 | &options->max_startups_begin, | |
674 | &options->max_startups_rate, | |
675 | &options->max_startups) == 3) { | |
676 | if (options->max_startups_begin > | |
677 | options->max_startups || | |
678 | options->max_startups_rate > 100 || | |
679 | options->max_startups_rate < 1) | |
680 | fatal("%s line %d: Illegal MaxStartups spec.", | |
681 | filename, linenum); | |
682 | break; | |
683 | } | |
089fbbd2 | 684 | intptr = &options->max_startups; |
685 | goto parse_int; | |
686 | ||
5260325f | 687 | default: |
688 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", | |
089fbbd2 | 689 | filename, linenum, arg, opcode); |
5260325f | 690 | exit(1); |
8efc0c15 | 691 | } |
704b1659 | 692 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
089fbbd2 | 693 | fprintf(stderr, |
694 | "%s line %d: garbage at end of line; \"%.200s\".\n", | |
695 | filename, linenum, arg); | |
5260325f | 696 | exit(1); |
8efc0c15 | 697 | } |
8efc0c15 | 698 | } |
5260325f | 699 | fclose(f); |
700 | if (bad_options > 0) { | |
701 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", | |
702 | filename, bad_options); | |
703 | exit(1); | |
8efc0c15 | 704 | } |
8efc0c15 | 705 | } |