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3c0ef626 | 1 | /* |
2 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
3 | * All rights reserved | |
4 | * | |
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". | |
10 | */ | |
11 | ||
12 | #include "includes.h" | |
34fee935 | 13 | RCSID("$OpenBSD: servconf.c,v 1.144 2005/08/06 10:03:12 dtucker Exp $"); |
3c0ef626 | 14 | |
15 | #include "ssh.h" | |
16 | #include "log.h" | |
17 | #include "servconf.h" | |
18 | #include "xmalloc.h" | |
19 | #include "compat.h" | |
20 | #include "pathnames.h" | |
3c0ef626 | 21 | #include "misc.h" |
22 | #include "cipher.h" | |
23 | #include "kex.h" | |
24 | #include "mac.h" | |
25 | ||
26 | static void add_listen_addr(ServerOptions *, char *, u_short); | |
27 | static void add_one_listen_addr(ServerOptions *, char *, u_short); | |
28 | ||
2980ea68 | 29 | /* Use of privilege separation or not */ |
30 | extern int use_privsep; | |
3c0ef626 | 31 | |
32 | /* Initializes the server options to their default values. */ | |
33 | ||
34 | void | |
35 | initialize_server_options(ServerOptions *options) | |
36 | { | |
37 | memset(options, 0, sizeof(*options)); | |
38 | ||
39 | /* Portable-specific options */ | |
70791e56 | 40 | options->use_pam = -1; |
3c0ef626 | 41 | |
42 | /* Standard Options */ | |
43 | options->num_ports = 0; | |
44 | options->ports_from_cmdline = 0; | |
45 | options->listen_addrs = NULL; | |
34fee935 | 46 | options->address_family = -1; |
3c0ef626 | 47 | options->num_host_key_files = 0; |
48 | options->pid_file = NULL; | |
49 | options->server_key_bits = -1; | |
50 | options->login_grace_time = -1; | |
51 | options->key_regeneration_time = -1; | |
52 | options->permit_root_login = PERMIT_NOT_SET; | |
53 | options->ignore_rhosts = -1; | |
54 | options->ignore_user_known_hosts = -1; | |
55 | options->print_motd = -1; | |
56 | options->print_lastlog = -1; | |
57 | options->x11_forwarding = -1; | |
58 | options->x11_display_offset = -1; | |
e9a17296 | 59 | options->x11_use_localhost = -1; |
3c0ef626 | 60 | options->xauth_location = NULL; |
61 | options->strict_modes = -1; | |
416fd2a8 | 62 | options->tcp_keep_alive = -1; |
e9a17296 | 63 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
64 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
3c0ef626 | 65 | options->rhosts_rsa_authentication = -1; |
66 | options->hostbased_authentication = -1; | |
67 | options->hostbased_uses_name_from_packet_only = -1; | |
68 | options->rsa_authentication = -1; | |
69 | options->pubkey_authentication = -1; | |
3c0ef626 | 70 | options->kerberos_authentication = -1; |
71 | options->kerberos_or_local_passwd = -1; | |
72 | options->kerberos_ticket_cleanup = -1; | |
88928908 | 73 | #ifdef SESSION_HOOKS |
74 | options->session_hooks_allow = -1; | |
75 | options->session_hooks_startup_cmd = NULL; | |
76 | options->session_hooks_shutdown_cmd = NULL; | |
3c0ef626 | 77 | #endif |
416fd2a8 | 78 | options->kerberos_get_afs_token = -1; |
70791e56 | 79 | options->gss_authentication=-1; |
34fee935 | 80 | options->gss_keyex = -1; |
70791e56 | 81 | options->gss_cleanup_creds = -1; |
3c0ef626 | 82 | options->password_authentication = -1; |
83 | options->kbd_interactive_authentication = -1; | |
84 | options->challenge_response_authentication = -1; | |
85 | options->permit_empty_passwd = -1; | |
e54b3d7c | 86 | options->permit_user_env = -1; |
3c0ef626 | 87 | options->use_login = -1; |
ff2d7a98 | 88 | options->compression = -1; |
3c0ef626 | 89 | options->allow_tcp_forwarding = -1; |
90 | options->num_allow_users = 0; | |
91 | options->num_deny_users = 0; | |
92 | options->num_allow_groups = 0; | |
93 | options->num_deny_groups = 0; | |
94 | options->ciphers = NULL; | |
95 | options->macs = NULL; | |
96 | options->protocol = SSH_PROTO_UNKNOWN; | |
97 | options->gateway_ports = -1; | |
98 | options->num_subsystems = 0; | |
99 | options->max_startups_begin = -1; | |
100 | options->max_startups_rate = -1; | |
101 | options->max_startups = -1; | |
1b56ff3d | 102 | options->max_authtries = -1; |
3c0ef626 | 103 | options->banner = NULL; |
70791e56 | 104 | options->use_dns = -1; |
3c0ef626 | 105 | options->client_alive_interval = -1; |
106 | options->client_alive_count_max = -1; | |
107 | options->authorized_keys_file = NULL; | |
108 | options->authorized_keys_file2 = NULL; | |
1b56ff3d | 109 | options->num_accept_env = 0; |
2980ea68 | 110 | |
111 | /* Needs to be accessable in many places */ | |
112 | use_privsep = -1; | |
3c0ef626 | 113 | } |
114 | ||
115 | void | |
116 | fill_default_server_options(ServerOptions *options) | |
117 | { | |
118 | /* Portable-specific options */ | |
70791e56 | 119 | if (options->use_pam == -1) |
120 | options->use_pam = 0; | |
3c0ef626 | 121 | |
122 | /* Standard Options */ | |
123 | if (options->protocol == SSH_PROTO_UNKNOWN) | |
124 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
125 | if (options->num_host_key_files == 0) { | |
126 | /* fill default hostkeys for protocols */ | |
127 | if (options->protocol & SSH_PROTO_1) | |
e9a17296 | 128 | options->host_key_files[options->num_host_key_files++] = |
129 | _PATH_HOST_KEY_FILE; | |
130 | if (options->protocol & SSH_PROTO_2) { | |
131 | options->host_key_files[options->num_host_key_files++] = | |
132 | _PATH_HOST_RSA_KEY_FILE; | |
133 | options->host_key_files[options->num_host_key_files++] = | |
134 | _PATH_HOST_DSA_KEY_FILE; | |
135 | } | |
3c0ef626 | 136 | } |
137 | if (options->num_ports == 0) | |
138 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
139 | if (options->listen_addrs == NULL) | |
140 | add_listen_addr(options, NULL, 0); | |
141 | if (options->pid_file == NULL) | |
142 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; | |
143 | if (options->server_key_bits == -1) | |
144 | options->server_key_bits = 768; | |
145 | if (options->login_grace_time == -1) | |
e54b3d7c | 146 | options->login_grace_time = 120; |
3c0ef626 | 147 | if (options->key_regeneration_time == -1) |
148 | options->key_regeneration_time = 3600; | |
149 | if (options->permit_root_login == PERMIT_NOT_SET) | |
150 | options->permit_root_login = PERMIT_YES; | |
151 | if (options->ignore_rhosts == -1) | |
152 | options->ignore_rhosts = 1; | |
153 | if (options->ignore_user_known_hosts == -1) | |
154 | options->ignore_user_known_hosts = 0; | |
155 | if (options->print_motd == -1) | |
156 | options->print_motd = 1; | |
157 | if (options->print_lastlog == -1) | |
158 | options->print_lastlog = 1; | |
159 | if (options->x11_forwarding == -1) | |
160 | options->x11_forwarding = 0; | |
161 | if (options->x11_display_offset == -1) | |
162 | options->x11_display_offset = 10; | |
e9a17296 | 163 | if (options->x11_use_localhost == -1) |
164 | options->x11_use_localhost = 1; | |
3c0ef626 | 165 | if (options->xauth_location == NULL) |
166 | options->xauth_location = _PATH_XAUTH; | |
3c0ef626 | 167 | if (options->strict_modes == -1) |
168 | options->strict_modes = 1; | |
416fd2a8 | 169 | if (options->tcp_keep_alive == -1) |
170 | options->tcp_keep_alive = 1; | |
e9a17296 | 171 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
3c0ef626 | 172 | options->log_facility = SYSLOG_FACILITY_AUTH; |
e9a17296 | 173 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
3c0ef626 | 174 | options->log_level = SYSLOG_LEVEL_INFO; |
3c0ef626 | 175 | if (options->rhosts_rsa_authentication == -1) |
176 | options->rhosts_rsa_authentication = 0; | |
177 | if (options->hostbased_authentication == -1) | |
178 | options->hostbased_authentication = 0; | |
179 | if (options->hostbased_uses_name_from_packet_only == -1) | |
180 | options->hostbased_uses_name_from_packet_only = 0; | |
181 | if (options->rsa_authentication == -1) | |
182 | options->rsa_authentication = 1; | |
183 | if (options->pubkey_authentication == -1) | |
184 | options->pubkey_authentication = 1; | |
70791e56 | 185 | if (options->kerberos_authentication == -1) |
186 | options->kerberos_authentication = 0; | |
187 | if (options->kerberos_or_local_passwd == -1) | |
188 | options->kerberos_or_local_passwd = 1; | |
189 | if (options->kerberos_ticket_cleanup == -1) | |
190 | options->kerberos_ticket_cleanup = 1; | |
416fd2a8 | 191 | if (options->kerberos_get_afs_token == -1) |
192 | options->kerberos_get_afs_token = 0; | |
b9a54c29 | 193 | if (options->gss_authentication == -1) |
194 | options->gss_authentication = 1; | |
195 | if (options->gss_keyex == -1) | |
70791e56 | 196 | options->gss_keyex = 1; |
b9a54c29 | 197 | if (options->gss_cleanup_creds == -1) |
198 | options->gss_cleanup_creds = 1; | |
3c0ef626 | 199 | if (options->password_authentication == -1) |
200 | options->password_authentication = 1; | |
201 | if (options->kbd_interactive_authentication == -1) | |
202 | options->kbd_interactive_authentication = 0; | |
203 | if (options->challenge_response_authentication == -1) | |
204 | options->challenge_response_authentication = 1; | |
205 | if (options->permit_empty_passwd == -1) | |
206 | options->permit_empty_passwd = 0; | |
e54b3d7c | 207 | if (options->permit_user_env == -1) |
208 | options->permit_user_env = 0; | |
3c0ef626 | 209 | if (options->use_login == -1) |
210 | options->use_login = 0; | |
ff2d7a98 | 211 | if (options->compression == -1) |
34fee935 | 212 | options->compression = COMP_DELAYED; |
3c0ef626 | 213 | if (options->allow_tcp_forwarding == -1) |
214 | options->allow_tcp_forwarding = 1; | |
215 | if (options->gateway_ports == -1) | |
216 | options->gateway_ports = 0; | |
217 | if (options->max_startups == -1) | |
218 | options->max_startups = 10; | |
219 | if (options->max_startups_rate == -1) | |
220 | options->max_startups_rate = 100; /* 100% */ | |
221 | if (options->max_startups_begin == -1) | |
222 | options->max_startups_begin = options->max_startups; | |
1b56ff3d | 223 | if (options->max_authtries == -1) |
224 | options->max_authtries = DEFAULT_AUTH_FAIL_MAX; | |
70791e56 | 225 | if (options->use_dns == -1) |
226 | options->use_dns = 1; | |
3c0ef626 | 227 | if (options->client_alive_interval == -1) |
e9a17296 | 228 | options->client_alive_interval = 0; |
3c0ef626 | 229 | if (options->client_alive_count_max == -1) |
230 | options->client_alive_count_max = 3; | |
231 | if (options->authorized_keys_file2 == NULL) { | |
232 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
233 | if (options->authorized_keys_file != NULL) | |
234 | options->authorized_keys_file2 = options->authorized_keys_file; | |
235 | else | |
236 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
237 | } | |
238 | if (options->authorized_keys_file == NULL) | |
239 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
2980ea68 | 240 | |
ff2d7a98 | 241 | /* Turn privilege separation on by default */ |
2980ea68 | 242 | if (use_privsep == -1) |
ff2d7a98 | 243 | use_privsep = 1; |
244 | ||
e54b3d7c | 245 | #ifndef HAVE_MMAP |
ff2d7a98 | 246 | if (use_privsep && options->compression == 1) { |
247 | error("This platform does not support both privilege " | |
248 | "separation and compression"); | |
249 | error("Compression disabled"); | |
250 | options->compression = 0; | |
251 | } | |
252 | #endif | |
253 | ||
3c0ef626 | 254 | } |
255 | ||
256 | /* Keyword tokens. */ | |
257 | typedef enum { | |
258 | sBadOption, /* == unknown option */ | |
259 | /* Portable-specific options */ | |
70791e56 | 260 | sUsePAM, |
3c0ef626 | 261 | /* Standard Options */ |
262 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
263 | sPermitRootLogin, sLogFacility, sLogLevel, | |
70791e56 | 264 | sRhostsRSAAuthentication, sRSAAuthentication, |
3c0ef626 | 265 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
416fd2a8 | 266 | sKerberosGetAFSToken, |
70791e56 | 267 | sKerberosTgtPassing, sChallengeResponseAuthentication, |
88928908 | 268 | #ifdef SESSION_HOOKS |
269 | sAllowSessionHooks, sSessionHookStartupCmd, sSessionHookShutdownCmd, | |
3c0ef626 | 270 | #endif |
34fee935 | 271 | sPasswordAuthentication, sKbdInteractiveAuthentication, |
272 | sListenAddress, sAddressFamily, | |
3c0ef626 | 273 | sPrintMotd, sPrintLastLog, sIgnoreRhosts, |
e9a17296 | 274 | sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, |
416fd2a8 | 275 | sStrictModes, sEmptyPasswd, sTCPKeepAlive, |
e54b3d7c | 276 | sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, |
3c0ef626 | 277 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
278 | sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, | |
1b56ff3d | 279 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, |
280 | sMaxStartups, sMaxAuthTries, | |
70791e56 | 281 | sBanner, sUseDNS, sHostbasedAuthentication, |
e9a17296 | 282 | sHostbasedUsesNameFromPacketOnly, sClientAliveInterval, |
3c0ef626 | 283 | sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2, |
34fee935 | 284 | sGssAuthentication, sGssKeyEx, sGssCleanupCreds, sAcceptEnv, |
2980ea68 | 285 | sUsePrivilegeSeparation, |
70791e56 | 286 | sDeprecated, sUnsupported |
3c0ef626 | 287 | } ServerOpCodes; |
288 | ||
289 | /* Textual representation of the tokens. */ | |
290 | static struct { | |
291 | const char *name; | |
292 | ServerOpCodes opcode; | |
293 | } keywords[] = { | |
294 | /* Portable-specific options */ | |
70791e56 | 295 | #ifdef USE_PAM |
296 | { "usepam", sUsePAM }, | |
297 | #else | |
298 | { "usepam", sUnsupported }, | |
299 | #endif | |
300 | { "pamauthenticationviakbdint", sDeprecated }, | |
3c0ef626 | 301 | /* Standard Options */ |
302 | { "port", sPort }, | |
303 | { "hostkey", sHostKeyFile }, | |
304 | { "hostdsakey", sHostKeyFile }, /* alias */ | |
305 | { "pidfile", sPidFile }, | |
306 | { "serverkeybits", sServerKeyBits }, | |
307 | { "logingracetime", sLoginGraceTime }, | |
308 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
309 | { "permitrootlogin", sPermitRootLogin }, | |
310 | { "syslogfacility", sLogFacility }, | |
311 | { "loglevel", sLogLevel }, | |
70791e56 | 312 | { "rhostsauthentication", sDeprecated }, |
3c0ef626 | 313 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, |
314 | { "hostbasedauthentication", sHostbasedAuthentication }, | |
315 | { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly }, | |
316 | { "rsaauthentication", sRSAAuthentication }, | |
317 | { "pubkeyauthentication", sPubkeyAuthentication }, | |
318 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
70791e56 | 319 | #ifdef KRB5 |
320 | { "kerberosauthentication", sKerberosAuthentication }, | |
321 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
322 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
416fd2a8 | 323 | #ifdef USE_AFS |
324 | { "kerberosgetafstoken", sKerberosGetAFSToken }, | |
325 | #else | |
326 | { "kerberosgetafstoken", sUnsupported }, | |
327 | #endif | |
70791e56 | 328 | #else |
329 | { "kerberosauthentication", sUnsupported }, | |
330 | { "kerberosorlocalpasswd", sUnsupported }, | |
331 | { "kerberosticketcleanup", sUnsupported }, | |
416fd2a8 | 332 | { "kerberosgetafstoken", sUnsupported }, |
70791e56 | 333 | #endif |
334 | { "kerberostgtpassing", sUnsupported }, | |
335 | { "afstokenpassing", sUnsupported }, | |
b9a54c29 | 336 | #ifdef GSSAPI |
337 | { "gssapiauthentication", sGssAuthentication }, | |
338 | { "gssapikeyexchange", sGssKeyEx }, | |
416fd2a8 | 339 | { "gssapicleanupcredentials", sGssCleanupCreds }, |
70791e56 | 340 | #else |
341 | { "gssapiauthentication", sUnsupported }, | |
342 | { "gssapikeyexchange", sUnsupported }, | |
416fd2a8 | 343 | { "gssapicleanupcredentials", sUnsupported }, |
3c0ef626 | 344 | #endif |
88928908 | 345 | #ifdef SESSION_HOOKS |
346 | { "allowsessionhooks", sAllowSessionHooks }, | |
347 | { "sessionhookstartupcmd", sSessionHookStartupCmd }, | |
348 | { "sessionhookshutdowncmd", sSessionHookShutdownCmd }, | |
349 | #endif | |
3c0ef626 | 350 | { "passwordauthentication", sPasswordAuthentication }, |
351 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, | |
352 | { "challengeresponseauthentication", sChallengeResponseAuthentication }, | |
353 | { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */ | |
354 | { "checkmail", sDeprecated }, | |
355 | { "listenaddress", sListenAddress }, | |
34fee935 | 356 | { "addressfamily", sAddressFamily }, |
3c0ef626 | 357 | { "printmotd", sPrintMotd }, |
358 | { "printlastlog", sPrintLastLog }, | |
359 | { "ignorerhosts", sIgnoreRhosts }, | |
360 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
361 | { "x11forwarding", sX11Forwarding }, | |
362 | { "x11displayoffset", sX11DisplayOffset }, | |
e9a17296 | 363 | { "x11uselocalhost", sX11UseLocalhost }, |
3c0ef626 | 364 | { "xauthlocation", sXAuthLocation }, |
365 | { "strictmodes", sStrictModes }, | |
366 | { "permitemptypasswords", sEmptyPasswd }, | |
e54b3d7c | 367 | { "permituserenvironment", sPermitUserEnvironment }, |
3c0ef626 | 368 | { "uselogin", sUseLogin }, |
ff2d7a98 | 369 | { "compression", sCompression }, |
416fd2a8 | 370 | { "tcpkeepalive", sTCPKeepAlive }, |
371 | { "keepalive", sTCPKeepAlive }, /* obsolete alias */ | |
3c0ef626 | 372 | { "allowtcpforwarding", sAllowTcpForwarding }, |
373 | { "allowusers", sAllowUsers }, | |
374 | { "denyusers", sDenyUsers }, | |
375 | { "allowgroups", sAllowGroups }, | |
376 | { "denygroups", sDenyGroups }, | |
377 | { "ciphers", sCiphers }, | |
378 | { "macs", sMacs }, | |
379 | { "protocol", sProtocol }, | |
380 | { "gatewayports", sGatewayPorts }, | |
381 | { "subsystem", sSubsystem }, | |
382 | { "maxstartups", sMaxStartups }, | |
1b56ff3d | 383 | { "maxauthtries", sMaxAuthTries }, |
3c0ef626 | 384 | { "banner", sBanner }, |
70791e56 | 385 | { "usedns", sUseDNS }, |
386 | { "verifyreversemapping", sDeprecated }, | |
387 | { "reversemappingcheck", sDeprecated }, | |
3c0ef626 | 388 | { "clientaliveinterval", sClientAliveInterval }, |
389 | { "clientalivecountmax", sClientAliveCountMax }, | |
390 | { "authorizedkeysfile", sAuthorizedKeysFile }, | |
391 | { "authorizedkeysfile2", sAuthorizedKeysFile2 }, | |
2980ea68 | 392 | { "useprivilegeseparation", sUsePrivilegeSeparation}, |
1b56ff3d | 393 | { "acceptenv", sAcceptEnv }, |
e9a17296 | 394 | { NULL, sBadOption } |
3c0ef626 | 395 | }; |
396 | ||
397 | /* | |
398 | * Returns the number of the token pointed to by cp or sBadOption. | |
399 | */ | |
400 | ||
401 | static ServerOpCodes | |
402 | parse_token(const char *cp, const char *filename, | |
403 | int linenum) | |
404 | { | |
405 | u_int i; | |
406 | ||
407 | for (i = 0; keywords[i].name; i++) | |
408 | if (strcasecmp(cp, keywords[i].name) == 0) | |
409 | return keywords[i].opcode; | |
410 | ||
411 | error("%s: line %d: Bad configuration option: %s", | |
412 | filename, linenum, cp); | |
413 | return sBadOption; | |
414 | } | |
415 | ||
416 | static void | |
417 | add_listen_addr(ServerOptions *options, char *addr, u_short port) | |
418 | { | |
34fee935 | 419 | u_int i; |
3c0ef626 | 420 | |
421 | if (options->num_ports == 0) | |
422 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
34fee935 | 423 | if (options->address_family == -1) |
424 | options->address_family = AF_UNSPEC; | |
3c0ef626 | 425 | if (port == 0) |
426 | for (i = 0; i < options->num_ports; i++) | |
427 | add_one_listen_addr(options, addr, options->ports[i]); | |
428 | else | |
429 | add_one_listen_addr(options, addr, port); | |
430 | } | |
431 | ||
432 | static void | |
433 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) | |
434 | { | |
435 | struct addrinfo hints, *ai, *aitop; | |
436 | char strport[NI_MAXSERV]; | |
437 | int gaierr; | |
438 | ||
439 | memset(&hints, 0, sizeof(hints)); | |
34fee935 | 440 | hints.ai_family = options->address_family; |
3c0ef626 | 441 | hints.ai_socktype = SOCK_STREAM; |
442 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
ff2d7a98 | 443 | snprintf(strport, sizeof strport, "%u", port); |
3c0ef626 | 444 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
445 | fatal("bad addr or host: %s (%s)", | |
446 | addr ? addr : "<NULL>", | |
447 | gai_strerror(gaierr)); | |
448 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
449 | ; | |
450 | ai->ai_next = options->listen_addrs; | |
451 | options->listen_addrs = aitop; | |
452 | } | |
453 | ||
e9a17296 | 454 | int |
455 | process_server_config_line(ServerOptions *options, char *line, | |
456 | const char *filename, int linenum) | |
3c0ef626 | 457 | { |
3c0ef626 | 458 | char *cp, **charptr, *arg, *p; |
34fee935 | 459 | int *intptr, value, n; |
3c0ef626 | 460 | ServerOpCodes opcode; |
34fee935 | 461 | u_short port; |
462 | u_int i; | |
3c0ef626 | 463 | |
e9a17296 | 464 | cp = line; |
465 | arg = strdelim(&cp); | |
466 | /* Ignore leading whitespace */ | |
467 | if (*arg == '\0') | |
3c0ef626 | 468 | arg = strdelim(&cp); |
e9a17296 | 469 | if (!arg || !*arg || *arg == '#') |
470 | return 0; | |
471 | intptr = NULL; | |
472 | charptr = NULL; | |
473 | opcode = parse_token(arg, filename, linenum); | |
474 | switch (opcode) { | |
475 | /* Portable-specific options */ | |
70791e56 | 476 | case sUsePAM: |
477 | intptr = &options->use_pam; | |
e9a17296 | 478 | goto parse_flag; |
3c0ef626 | 479 | |
e9a17296 | 480 | /* Standard Options */ |
481 | case sBadOption: | |
482 | return -1; | |
483 | case sPort: | |
484 | /* ignore ports from configfile if cmdline specifies ports */ | |
485 | if (options->ports_from_cmdline) | |
486 | return 0; | |
487 | if (options->listen_addrs != NULL) | |
488 | fatal("%s line %d: ports must be specified before " | |
489 | "ListenAddress.", filename, linenum); | |
490 | if (options->num_ports >= MAX_PORTS) | |
491 | fatal("%s line %d: too many ports.", | |
492 | filename, linenum); | |
493 | arg = strdelim(&cp); | |
494 | if (!arg || *arg == '\0') | |
495 | fatal("%s line %d: missing port number.", | |
496 | filename, linenum); | |
497 | options->ports[options->num_ports++] = a2port(arg); | |
498 | if (options->ports[options->num_ports-1] == 0) | |
499 | fatal("%s line %d: Badly formatted port number.", | |
500 | filename, linenum); | |
501 | break; | |
502 | ||
503 | case sServerKeyBits: | |
504 | intptr = &options->server_key_bits; | |
3c0ef626 | 505 | parse_int: |
e9a17296 | 506 | arg = strdelim(&cp); |
507 | if (!arg || *arg == '\0') | |
508 | fatal("%s line %d: missing integer value.", | |
509 | filename, linenum); | |
510 | value = atoi(arg); | |
511 | if (*intptr == -1) | |
512 | *intptr = value; | |
513 | break; | |
514 | ||
515 | case sLoginGraceTime: | |
516 | intptr = &options->login_grace_time; | |
3c0ef626 | 517 | parse_time: |
e9a17296 | 518 | arg = strdelim(&cp); |
519 | if (!arg || *arg == '\0') | |
520 | fatal("%s line %d: missing time value.", | |
521 | filename, linenum); | |
522 | if ((value = convtime(arg)) == -1) | |
523 | fatal("%s line %d: invalid time value.", | |
524 | filename, linenum); | |
525 | if (*intptr == -1) | |
526 | *intptr = value; | |
527 | break; | |
528 | ||
529 | case sKeyRegenerationTime: | |
530 | intptr = &options->key_regeneration_time; | |
531 | goto parse_time; | |
532 | ||
533 | case sListenAddress: | |
534 | arg = strdelim(&cp); | |
34fee935 | 535 | if (arg == NULL || *arg == '\0') |
536 | fatal("%s line %d: missing address", | |
e9a17296 | 537 | filename, linenum); |
34fee935 | 538 | /* check for bare IPv6 address: no "[]" and 2 or more ":" */ |
539 | if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL | |
540 | && strchr(p+1, ':') != NULL) { | |
e9a17296 | 541 | add_listen_addr(options, arg, 0); |
3c0ef626 | 542 | break; |
e9a17296 | 543 | } |
34fee935 | 544 | p = hpdelim(&arg); |
545 | if (p == NULL) | |
546 | fatal("%s line %d: bad address:port usage", | |
547 | filename, linenum); | |
548 | p = cleanhostname(p); | |
549 | if (arg == NULL) | |
550 | port = 0; | |
551 | else if ((port = a2port(arg)) == 0) | |
552 | fatal("%s line %d: bad port number", filename, linenum); | |
3c0ef626 | 553 | |
34fee935 | 554 | add_listen_addr(options, p, port); |
555 | ||
556 | break; | |
557 | ||
558 | case sAddressFamily: | |
559 | arg = strdelim(&cp); | |
560 | if (!arg || *arg == '\0') | |
561 | fatal("%s line %d: missing address family.", | |
e9a17296 | 562 | filename, linenum); |
34fee935 | 563 | intptr = &options->address_family; |
564 | if (options->listen_addrs != NULL) | |
565 | fatal("%s line %d: address family must be specified before " | |
566 | "ListenAddress.", filename, linenum); | |
567 | if (strcasecmp(arg, "inet") == 0) | |
568 | value = AF_INET; | |
569 | else if (strcasecmp(arg, "inet6") == 0) | |
570 | value = AF_INET6; | |
571 | else if (strcasecmp(arg, "any") == 0) | |
572 | value = AF_UNSPEC; | |
573 | else | |
574 | fatal("%s line %d: unsupported address family \"%s\".", | |
575 | filename, linenum, arg); | |
576 | if (*intptr == -1) | |
577 | *intptr = value; | |
e9a17296 | 578 | break; |
579 | ||
580 | case sHostKeyFile: | |
581 | intptr = &options->num_host_key_files; | |
582 | if (*intptr >= MAX_HOSTKEYS) | |
583 | fatal("%s line %d: too many host keys specified (max %d).", | |
584 | filename, linenum, MAX_HOSTKEYS); | |
585 | charptr = &options->host_key_files[*intptr]; | |
3c0ef626 | 586 | parse_filename: |
e9a17296 | 587 | arg = strdelim(&cp); |
588 | if (!arg || *arg == '\0') | |
589 | fatal("%s line %d: missing file name.", | |
590 | filename, linenum); | |
591 | if (*charptr == NULL) { | |
592 | *charptr = tilde_expand_filename(arg, getuid()); | |
593 | /* increase optional counter */ | |
594 | if (intptr != NULL) | |
595 | *intptr = *intptr + 1; | |
596 | } | |
597 | break; | |
3c0ef626 | 598 | |
e9a17296 | 599 | case sPidFile: |
600 | charptr = &options->pid_file; | |
601 | goto parse_filename; | |
3c0ef626 | 602 | |
e9a17296 | 603 | case sPermitRootLogin: |
604 | intptr = &options->permit_root_login; | |
605 | arg = strdelim(&cp); | |
606 | if (!arg || *arg == '\0') | |
607 | fatal("%s line %d: missing yes/" | |
608 | "without-password/forced-commands-only/no " | |
609 | "argument.", filename, linenum); | |
610 | value = 0; /* silence compiler */ | |
611 | if (strcmp(arg, "without-password") == 0) | |
612 | value = PERMIT_NO_PASSWD; | |
613 | else if (strcmp(arg, "forced-commands-only") == 0) | |
614 | value = PERMIT_FORCED_ONLY; | |
615 | else if (strcmp(arg, "yes") == 0) | |
616 | value = PERMIT_YES; | |
617 | else if (strcmp(arg, "no") == 0) | |
618 | value = PERMIT_NO; | |
619 | else | |
620 | fatal("%s line %d: Bad yes/" | |
621 | "without-password/forced-commands-only/no " | |
622 | "argument: %s", filename, linenum, arg); | |
623 | if (*intptr == -1) | |
624 | *intptr = value; | |
625 | break; | |
626 | ||
627 | case sIgnoreRhosts: | |
628 | intptr = &options->ignore_rhosts; | |
3c0ef626 | 629 | parse_flag: |
e9a17296 | 630 | arg = strdelim(&cp); |
631 | if (!arg || *arg == '\0') | |
632 | fatal("%s line %d: missing yes/no argument.", | |
633 | filename, linenum); | |
634 | value = 0; /* silence compiler */ | |
635 | if (strcmp(arg, "yes") == 0) | |
636 | value = 1; | |
637 | else if (strcmp(arg, "no") == 0) | |
638 | value = 0; | |
639 | else | |
640 | fatal("%s line %d: Bad yes/no argument: %s", | |
641 | filename, linenum, arg); | |
642 | if (*intptr == -1) | |
643 | *intptr = value; | |
644 | break; | |
645 | ||
646 | case sIgnoreUserKnownHosts: | |
647 | intptr = &options->ignore_user_known_hosts; | |
648 | goto parse_flag; | |
649 | ||
e9a17296 | 650 | case sRhostsRSAAuthentication: |
651 | intptr = &options->rhosts_rsa_authentication; | |
652 | goto parse_flag; | |
653 | ||
654 | case sHostbasedAuthentication: | |
655 | intptr = &options->hostbased_authentication; | |
656 | goto parse_flag; | |
657 | ||
658 | case sHostbasedUsesNameFromPacketOnly: | |
659 | intptr = &options->hostbased_uses_name_from_packet_only; | |
660 | goto parse_flag; | |
661 | ||
662 | case sRSAAuthentication: | |
663 | intptr = &options->rsa_authentication; | |
664 | goto parse_flag; | |
665 | ||
666 | case sPubkeyAuthentication: | |
667 | intptr = &options->pubkey_authentication; | |
668 | goto parse_flag; | |
70791e56 | 669 | |
e9a17296 | 670 | case sKerberosAuthentication: |
671 | intptr = &options->kerberos_authentication; | |
672 | goto parse_flag; | |
3c0ef626 | 673 | |
e9a17296 | 674 | case sKerberosOrLocalPasswd: |
675 | intptr = &options->kerberos_or_local_passwd; | |
676 | goto parse_flag; | |
3c0ef626 | 677 | |
e9a17296 | 678 | case sKerberosTicketCleanup: |
679 | intptr = &options->kerberos_ticket_cleanup; | |
680 | goto parse_flag; | |
70791e56 | 681 | |
416fd2a8 | 682 | case sKerberosGetAFSToken: |
683 | intptr = &options->kerberos_get_afs_token; | |
684 | goto parse_flag; | |
685 | ||
70791e56 | 686 | case sGssAuthentication: |
687 | intptr = &options->gss_authentication; | |
e9a17296 | 688 | goto parse_flag; |
70791e56 | 689 | |
690 | case sGssKeyEx: | |
691 | intptr = &options->gss_keyex; | |
e9a17296 | 692 | goto parse_flag; |
70791e56 | 693 | |
70791e56 | 694 | case sGssCleanupCreds: |
695 | intptr = &options->gss_cleanup_creds; | |
696 | goto parse_flag; | |
697 | ||
88928908 | 698 | #ifdef SESSION_HOOKS |
699 | case sAllowSessionHooks: | |
700 | intptr = &options->session_hooks_allow; | |
701 | goto parse_flag; | |
702 | case sSessionHookStartupCmd: | |
703 | case sSessionHookShutdownCmd: | |
704 | arg = strdelim(&cp); | |
705 | if (!arg || *arg == '\0') | |
706 | fatal("%s line %d: empty session hook command", | |
707 | filename, linenum); | |
708 | if (opcode==sSessionHookStartupCmd) | |
709 | options->session_hooks_startup_cmd = strdup(arg); | |
710 | else | |
711 | options->session_hooks_shutdown_cmd = strdup(arg); | |
712 | break; | |
713 | #endif | |
70791e56 | 714 | |
e9a17296 | 715 | case sPasswordAuthentication: |
716 | intptr = &options->password_authentication; | |
717 | goto parse_flag; | |
3c0ef626 | 718 | |
e9a17296 | 719 | case sKbdInteractiveAuthentication: |
720 | intptr = &options->kbd_interactive_authentication; | |
721 | goto parse_flag; | |
3c0ef626 | 722 | |
e9a17296 | 723 | case sChallengeResponseAuthentication: |
724 | intptr = &options->challenge_response_authentication; | |
725 | goto parse_flag; | |
3c0ef626 | 726 | |
e9a17296 | 727 | case sPrintMotd: |
728 | intptr = &options->print_motd; | |
729 | goto parse_flag; | |
3c0ef626 | 730 | |
e9a17296 | 731 | case sPrintLastLog: |
732 | intptr = &options->print_lastlog; | |
733 | goto parse_flag; | |
3c0ef626 | 734 | |
e9a17296 | 735 | case sX11Forwarding: |
736 | intptr = &options->x11_forwarding; | |
737 | goto parse_flag; | |
3c0ef626 | 738 | |
e9a17296 | 739 | case sX11DisplayOffset: |
740 | intptr = &options->x11_display_offset; | |
741 | goto parse_int; | |
3c0ef626 | 742 | |
e9a17296 | 743 | case sX11UseLocalhost: |
744 | intptr = &options->x11_use_localhost; | |
745 | goto parse_flag; | |
3c0ef626 | 746 | |
e9a17296 | 747 | case sXAuthLocation: |
748 | charptr = &options->xauth_location; | |
749 | goto parse_filename; | |
3c0ef626 | 750 | |
e9a17296 | 751 | case sStrictModes: |
752 | intptr = &options->strict_modes; | |
753 | goto parse_flag; | |
3c0ef626 | 754 | |
416fd2a8 | 755 | case sTCPKeepAlive: |
756 | intptr = &options->tcp_keep_alive; | |
e9a17296 | 757 | goto parse_flag; |
3c0ef626 | 758 | |
e9a17296 | 759 | case sEmptyPasswd: |
760 | intptr = &options->permit_empty_passwd; | |
761 | goto parse_flag; | |
3c0ef626 | 762 | |
e54b3d7c | 763 | case sPermitUserEnvironment: |
764 | intptr = &options->permit_user_env; | |
765 | goto parse_flag; | |
766 | ||
e9a17296 | 767 | case sUseLogin: |
768 | intptr = &options->use_login; | |
769 | goto parse_flag; | |
3c0ef626 | 770 | |
ff2d7a98 | 771 | case sCompression: |
772 | intptr = &options->compression; | |
34fee935 | 773 | arg = strdelim(&cp); |
774 | if (!arg || *arg == '\0') | |
775 | fatal("%s line %d: missing yes/no/delayed " | |
776 | "argument.", filename, linenum); | |
777 | value = 0; /* silence compiler */ | |
778 | if (strcmp(arg, "delayed") == 0) | |
779 | value = COMP_DELAYED; | |
780 | else if (strcmp(arg, "yes") == 0) | |
781 | value = COMP_ZLIB; | |
782 | else if (strcmp(arg, "no") == 0) | |
783 | value = COMP_NONE; | |
784 | else | |
785 | fatal("%s line %d: Bad yes/no/delayed " | |
786 | "argument: %s", filename, linenum, arg); | |
787 | if (*intptr == -1) | |
788 | *intptr = value; | |
789 | break; | |
ff2d7a98 | 790 | |
e9a17296 | 791 | case sGatewayPorts: |
792 | intptr = &options->gateway_ports; | |
34fee935 | 793 | arg = strdelim(&cp); |
794 | if (!arg || *arg == '\0') | |
795 | fatal("%s line %d: missing yes/no/clientspecified " | |
796 | "argument.", filename, linenum); | |
797 | value = 0; /* silence compiler */ | |
798 | if (strcmp(arg, "clientspecified") == 0) | |
799 | value = 2; | |
800 | else if (strcmp(arg, "yes") == 0) | |
801 | value = 1; | |
802 | else if (strcmp(arg, "no") == 0) | |
803 | value = 0; | |
804 | else | |
805 | fatal("%s line %d: Bad yes/no/clientspecified " | |
806 | "argument: %s", filename, linenum, arg); | |
807 | if (*intptr == -1) | |
808 | *intptr = value; | |
809 | break; | |
3c0ef626 | 810 | |
70791e56 | 811 | case sUseDNS: |
812 | intptr = &options->use_dns; | |
e9a17296 | 813 | goto parse_flag; |
3c0ef626 | 814 | |
e9a17296 | 815 | case sLogFacility: |
816 | intptr = (int *) &options->log_facility; | |
817 | arg = strdelim(&cp); | |
818 | value = log_facility_number(arg); | |
819 | if (value == SYSLOG_FACILITY_NOT_SET) | |
820 | fatal("%.200s line %d: unsupported log facility '%s'", | |
821 | filename, linenum, arg ? arg : "<NONE>"); | |
822 | if (*intptr == -1) | |
823 | *intptr = (SyslogFacility) value; | |
824 | break; | |
825 | ||
826 | case sLogLevel: | |
827 | intptr = (int *) &options->log_level; | |
828 | arg = strdelim(&cp); | |
829 | value = log_level_number(arg); | |
830 | if (value == SYSLOG_LEVEL_NOT_SET) | |
831 | fatal("%.200s line %d: unsupported log level '%s'", | |
832 | filename, linenum, arg ? arg : "<NONE>"); | |
833 | if (*intptr == -1) | |
834 | *intptr = (LogLevel) value; | |
835 | break; | |
836 | ||
837 | case sAllowTcpForwarding: | |
838 | intptr = &options->allow_tcp_forwarding; | |
839 | goto parse_flag; | |
840 | ||
2980ea68 | 841 | case sUsePrivilegeSeparation: |
842 | intptr = &use_privsep; | |
843 | goto parse_flag; | |
844 | ||
e9a17296 | 845 | case sAllowUsers: |
846 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
847 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
848 | fatal("%s line %d: too many allow users.", | |
849 | filename, linenum); | |
ff2d7a98 | 850 | options->allow_users[options->num_allow_users++] = |
851 | xstrdup(arg); | |
e9a17296 | 852 | } |
853 | break; | |
3c0ef626 | 854 | |
e9a17296 | 855 | case sDenyUsers: |
856 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
857 | if (options->num_deny_users >= MAX_DENY_USERS) | |
858 | fatal( "%s line %d: too many deny users.", | |
859 | filename, linenum); | |
ff2d7a98 | 860 | options->deny_users[options->num_deny_users++] = |
861 | xstrdup(arg); | |
e9a17296 | 862 | } |
863 | break; | |
3c0ef626 | 864 | |
e9a17296 | 865 | case sAllowGroups: |
866 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
867 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
868 | fatal("%s line %d: too many allow groups.", | |
869 | filename, linenum); | |
ff2d7a98 | 870 | options->allow_groups[options->num_allow_groups++] = |
871 | xstrdup(arg); | |
e9a17296 | 872 | } |
873 | break; | |
3c0ef626 | 874 | |
e9a17296 | 875 | case sDenyGroups: |
876 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
877 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
878 | fatal("%s line %d: too many deny groups.", | |
879 | filename, linenum); | |
880 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
881 | } | |
882 | break; | |
883 | ||
884 | case sCiphers: | |
885 | arg = strdelim(&cp); | |
886 | if (!arg || *arg == '\0') | |
887 | fatal("%s line %d: Missing argument.", filename, linenum); | |
888 | if (!ciphers_valid(arg)) | |
889 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
890 | filename, linenum, arg ? arg : "<NONE>"); | |
891 | if (options->ciphers == NULL) | |
892 | options->ciphers = xstrdup(arg); | |
893 | break; | |
894 | ||
895 | case sMacs: | |
896 | arg = strdelim(&cp); | |
897 | if (!arg || *arg == '\0') | |
898 | fatal("%s line %d: Missing argument.", filename, linenum); | |
899 | if (!mac_valid(arg)) | |
900 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
901 | filename, linenum, arg ? arg : "<NONE>"); | |
902 | if (options->macs == NULL) | |
903 | options->macs = xstrdup(arg); | |
904 | break; | |
905 | ||
906 | case sProtocol: | |
907 | intptr = &options->protocol; | |
908 | arg = strdelim(&cp); | |
909 | if (!arg || *arg == '\0') | |
910 | fatal("%s line %d: Missing argument.", filename, linenum); | |
911 | value = proto_spec(arg); | |
912 | if (value == SSH_PROTO_UNKNOWN) | |
913 | fatal("%s line %d: Bad protocol spec '%s'.", | |
914 | filename, linenum, arg ? arg : "<NONE>"); | |
915 | if (*intptr == SSH_PROTO_UNKNOWN) | |
916 | *intptr = value; | |
917 | break; | |
918 | ||
919 | case sSubsystem: | |
920 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
921 | fatal("%s line %d: too many subsystems defined.", | |
922 | filename, linenum); | |
923 | } | |
924 | arg = strdelim(&cp); | |
925 | if (!arg || *arg == '\0') | |
926 | fatal("%s line %d: Missing subsystem name.", | |
927 | filename, linenum); | |
928 | for (i = 0; i < options->num_subsystems; i++) | |
929 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
930 | fatal("%s line %d: Subsystem '%s' already defined.", | |
931 | filename, linenum, arg); | |
932 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
933 | arg = strdelim(&cp); | |
934 | if (!arg || *arg == '\0') | |
935 | fatal("%s line %d: Missing subsystem command.", | |
936 | filename, linenum); | |
937 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); | |
938 | options->num_subsystems++; | |
939 | break; | |
940 | ||
941 | case sMaxStartups: | |
942 | arg = strdelim(&cp); | |
943 | if (!arg || *arg == '\0') | |
944 | fatal("%s line %d: Missing MaxStartups spec.", | |
945 | filename, linenum); | |
946 | if ((n = sscanf(arg, "%d:%d:%d", | |
947 | &options->max_startups_begin, | |
948 | &options->max_startups_rate, | |
949 | &options->max_startups)) == 3) { | |
950 | if (options->max_startups_begin > | |
951 | options->max_startups || | |
952 | options->max_startups_rate > 100 || | |
953 | options->max_startups_rate < 1) | |
3c0ef626 | 954 | fatal("%s line %d: Illegal MaxStartups spec.", |
955 | filename, linenum); | |
e9a17296 | 956 | } else if (n != 1) |
957 | fatal("%s line %d: Illegal MaxStartups spec.", | |
958 | filename, linenum); | |
959 | else | |
960 | options->max_startups = options->max_startups_begin; | |
961 | break; | |
962 | ||
1b56ff3d | 963 | case sMaxAuthTries: |
964 | intptr = &options->max_authtries; | |
965 | goto parse_int; | |
966 | ||
e9a17296 | 967 | case sBanner: |
968 | charptr = &options->banner; | |
969 | goto parse_filename; | |
970 | /* | |
971 | * These options can contain %X options expanded at | |
972 | * connect time, so that you can specify paths like: | |
973 | * | |
974 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
975 | */ | |
976 | case sAuthorizedKeysFile: | |
977 | case sAuthorizedKeysFile2: | |
978 | charptr = (opcode == sAuthorizedKeysFile ) ? | |
979 | &options->authorized_keys_file : | |
980 | &options->authorized_keys_file2; | |
981 | goto parse_filename; | |
982 | ||
983 | case sClientAliveInterval: | |
984 | intptr = &options->client_alive_interval; | |
985 | goto parse_time; | |
986 | ||
987 | case sClientAliveCountMax: | |
988 | intptr = &options->client_alive_count_max; | |
989 | goto parse_int; | |
990 | ||
1b56ff3d | 991 | case sAcceptEnv: |
992 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
993 | if (strchr(arg, '=') != NULL) | |
994 | fatal("%s line %d: Invalid environment name.", | |
995 | filename, linenum); | |
996 | if (options->num_accept_env >= MAX_ACCEPT_ENV) | |
997 | fatal("%s line %d: too many allow env.", | |
998 | filename, linenum); | |
999 | options->accept_env[options->num_accept_env++] = | |
1000 | xstrdup(arg); | |
1001 | } | |
1002 | break; | |
1003 | ||
e9a17296 | 1004 | case sDeprecated: |
70791e56 | 1005 | logit("%s line %d: Deprecated option %s", |
1006 | filename, linenum, arg); | |
1007 | while (arg) | |
1008 | arg = strdelim(&cp); | |
1009 | break; | |
1010 | ||
1011 | case sUnsupported: | |
1012 | logit("%s line %d: Unsupported option %s", | |
e9a17296 | 1013 | filename, linenum, arg); |
1014 | while (arg) | |
1015 | arg = strdelim(&cp); | |
1016 | break; | |
1017 | ||
1018 | default: | |
1019 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
1020 | filename, linenum, arg, opcode); | |
1021 | } | |
1022 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
1023 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
1024 | filename, linenum, arg); | |
1025 | return 0; | |
1026 | } | |
3c0ef626 | 1027 | |
e9a17296 | 1028 | /* Reads the server configuration file. */ |
3c0ef626 | 1029 | |
e9a17296 | 1030 | void |
1b56ff3d | 1031 | load_server_config(const char *filename, Buffer *conf) |
e9a17296 | 1032 | { |
1b56ff3d | 1033 | char line[1024], *cp; |
ff2d7a98 | 1034 | FILE *f; |
e9a17296 | 1035 | |
1b56ff3d | 1036 | debug2("%s: filename %s", __func__, filename); |
1037 | if ((f = fopen(filename, "r")) == NULL) { | |
e9a17296 | 1038 | perror(filename); |
1039 | exit(1); | |
1040 | } | |
1b56ff3d | 1041 | buffer_clear(conf); |
e9a17296 | 1042 | while (fgets(line, sizeof(line), f)) { |
1b56ff3d | 1043 | /* |
1044 | * Trim out comments and strip whitespace | |
1045 | * NB - preserve newlines, they are needed to reproduce | |
1046 | * line numbers later for error messages | |
1047 | */ | |
1048 | if ((cp = strchr(line, '#')) != NULL) | |
1049 | memcpy(cp, "\n", 2); | |
1050 | cp = line + strspn(line, " \t\r"); | |
1051 | ||
1052 | buffer_append(conf, cp, strlen(cp)); | |
3c0ef626 | 1053 | } |
1b56ff3d | 1054 | buffer_append(conf, "\0", 1); |
3c0ef626 | 1055 | fclose(f); |
1b56ff3d | 1056 | debug2("%s: done config len = %d", __func__, buffer_len(conf)); |
1057 | } | |
1058 | ||
1059 | void | |
1060 | parse_server_config(ServerOptions *options, const char *filename, Buffer *conf) | |
1061 | { | |
1062 | int linenum, bad_options = 0; | |
1063 | char *cp, *obuf, *cbuf; | |
1064 | ||
1065 | debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); | |
1066 | ||
1067 | obuf = cbuf = xstrdup(buffer_ptr(conf)); | |
1068 | linenum = 1; | |
34fee935 | 1069 | while ((cp = strsep(&cbuf, "\n")) != NULL) { |
1b56ff3d | 1070 | if (process_server_config_line(options, cp, filename, |
1071 | linenum++) != 0) | |
1072 | bad_options++; | |
1073 | } | |
1074 | xfree(obuf); | |
3c0ef626 | 1075 | if (bad_options > 0) |
1076 | fatal("%s: terminating, %d bad configuration options", | |
1077 | filename, bad_options); | |
1078 | } |