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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" | |
31b41ceb | 13 | RCSID("$OpenBSD: servconf.c,v 1.138 2004/12/23 23:11:00 djm Exp $"); |
8efc0c15 | 14 | |
15 | #include "ssh.h" | |
42f11eb2 | 16 | #include "log.h" |
8efc0c15 | 17 | #include "servconf.h" |
18 | #include "xmalloc.h" | |
a8be9f80 | 19 | #include "compat.h" |
42f11eb2 | 20 | #include "pathnames.h" |
42f11eb2 | 21 | #include "misc.h" |
22 | #include "cipher.h" | |
b2552997 | 23 | #include "kex.h" |
24 | #include "mac.h" | |
42f11eb2 | 25 | |
396c147e | 26 | static void add_listen_addr(ServerOptions *, char *, u_short); |
27 | static void add_one_listen_addr(ServerOptions *, char *, u_short); | |
48e671d5 | 28 | |
1853d1ef | 29 | /* Use of privilege separation or not */ |
30 | extern int use_privsep; | |
42f11eb2 | 31 | |
8efc0c15 | 32 | /* Initializes the server options to their default values. */ |
33 | ||
6ae2364d | 34 | void |
5260325f | 35 | initialize_server_options(ServerOptions *options) |
8efc0c15 | 36 | { |
5260325f | 37 | memset(options, 0, sizeof(*options)); |
e15895cd | 38 | |
39 | /* Portable-specific options */ | |
7fceb20d | 40 | options->use_pam = -1; |
e15895cd | 41 | |
42 | /* Standard Options */ | |
48e671d5 | 43 | options->num_ports = 0; |
44 | options->ports_from_cmdline = 0; | |
45 | options->listen_addrs = NULL; | |
31b41ceb | 46 | options->address_family = -1; |
fa08c86b | 47 | options->num_host_key_files = 0; |
0fbe8c74 | 48 | options->pid_file = NULL; |
5260325f | 49 | options->server_key_bits = -1; |
50 | options->login_grace_time = -1; | |
51 | options->key_regeneration_time = -1; | |
15853e93 | 52 | options->permit_root_login = PERMIT_NOT_SET; |
5260325f | 53 | options->ignore_rhosts = -1; |
54 | options->ignore_user_known_hosts = -1; | |
55 | options->print_motd = -1; | |
4f4648f9 | 56 | options->print_lastlog = -1; |
5260325f | 57 | options->x11_forwarding = -1; |
58 | options->x11_display_offset = -1; | |
e6e573bd | 59 | options->x11_use_localhost = -1; |
fa649821 | 60 | options->xauth_location = NULL; |
5260325f | 61 | options->strict_modes = -1; |
fd573618 | 62 | options->tcp_keep_alive = -1; |
5eaf8578 | 63 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
64 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
5260325f | 65 | options->rhosts_rsa_authentication = -1; |
8002af61 | 66 | options->hostbased_authentication = -1; |
67 | options->hostbased_uses_name_from_packet_only = -1; | |
5260325f | 68 | options->rsa_authentication = -1; |
fa08c86b | 69 | options->pubkey_authentication = -1; |
5260325f | 70 | options->kerberos_authentication = -1; |
71 | options->kerberos_or_local_passwd = -1; | |
72 | options->kerberos_ticket_cleanup = -1; | |
a1e30b47 | 73 | options->kerberos_get_afs_token = -1; |
7364bd04 | 74 | options->gss_authentication=-1; |
75 | options->gss_cleanup_creds = -1; | |
5260325f | 76 | options->password_authentication = -1; |
94ec8c6b | 77 | options->kbd_interactive_authentication = -1; |
5ba55ada | 78 | options->challenge_response_authentication = -1; |
5260325f | 79 | options->permit_empty_passwd = -1; |
f00bab84 | 80 | options->permit_user_env = -1; |
5260325f | 81 | options->use_login = -1; |
636f76ca | 82 | options->compression = -1; |
33de75a3 | 83 | options->allow_tcp_forwarding = -1; |
5260325f | 84 | options->num_allow_users = 0; |
85 | options->num_deny_users = 0; | |
86 | options->num_allow_groups = 0; | |
87 | options->num_deny_groups = 0; | |
a8be9f80 | 88 | options->ciphers = NULL; |
b2552997 | 89 | options->macs = NULL; |
a8be9f80 | 90 | options->protocol = SSH_PROTO_UNKNOWN; |
1d1ffb87 | 91 | options->gateway_ports = -1; |
38c295d6 | 92 | options->num_subsystems = 0; |
c345cf9d | 93 | options->max_startups_begin = -1; |
94 | options->max_startups_rate = -1; | |
089fbbd2 | 95 | options->max_startups = -1; |
af4bd935 | 96 | options->max_authtries = -1; |
eea39c02 | 97 | options->banner = NULL; |
c5a7d788 | 98 | options->use_dns = -1; |
3ffc6336 | 99 | options->client_alive_interval = -1; |
100 | options->client_alive_count_max = -1; | |
c8445989 | 101 | options->authorized_keys_file = NULL; |
102 | options->authorized_keys_file2 = NULL; | |
61a2c1da | 103 | options->num_accept_env = 0; |
1853d1ef | 104 | |
1853d1ef | 105 | /* Needs to be accessable in many places */ |
106 | use_privsep = -1; | |
8efc0c15 | 107 | } |
108 | ||
6ae2364d | 109 | void |
5260325f | 110 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 111 | { |
e15895cd | 112 | /* Portable-specific options */ |
7fceb20d | 113 | if (options->use_pam == -1) |
0a23d79f | 114 | options->use_pam = 0; |
e15895cd | 115 | |
116 | /* Standard Options */ | |
fa08c86b | 117 | if (options->protocol == SSH_PROTO_UNKNOWN) |
118 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
119 | if (options->num_host_key_files == 0) { | |
120 | /* fill default hostkeys for protocols */ | |
121 | if (options->protocol & SSH_PROTO_1) | |
0f84fe37 | 122 | options->host_key_files[options->num_host_key_files++] = |
123 | _PATH_HOST_KEY_FILE; | |
124 | if (options->protocol & SSH_PROTO_2) { | |
125 | options->host_key_files[options->num_host_key_files++] = | |
126 | _PATH_HOST_RSA_KEY_FILE; | |
127 | options->host_key_files[options->num_host_key_files++] = | |
128 | _PATH_HOST_DSA_KEY_FILE; | |
129 | } | |
fa08c86b | 130 | } |
48e671d5 | 131 | if (options->num_ports == 0) |
132 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
133 | if (options->listen_addrs == NULL) | |
2d2a2c65 | 134 | add_listen_addr(options, NULL, 0); |
0fbe8c74 | 135 | if (options->pid_file == NULL) |
42f11eb2 | 136 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; |
5260325f | 137 | if (options->server_key_bits == -1) |
138 | options->server_key_bits = 768; | |
139 | if (options->login_grace_time == -1) | |
3445ca02 | 140 | options->login_grace_time = 120; |
5260325f | 141 | if (options->key_regeneration_time == -1) |
142 | options->key_regeneration_time = 3600; | |
15853e93 | 143 | if (options->permit_root_login == PERMIT_NOT_SET) |
144 | options->permit_root_login = PERMIT_YES; | |
5260325f | 145 | if (options->ignore_rhosts == -1) |
c8d54615 | 146 | options->ignore_rhosts = 1; |
5260325f | 147 | if (options->ignore_user_known_hosts == -1) |
148 | options->ignore_user_known_hosts = 0; | |
5260325f | 149 | if (options->print_motd == -1) |
150 | options->print_motd = 1; | |
4f4648f9 | 151 | if (options->print_lastlog == -1) |
152 | options->print_lastlog = 1; | |
5260325f | 153 | if (options->x11_forwarding == -1) |
c8d54615 | 154 | options->x11_forwarding = 0; |
5260325f | 155 | if (options->x11_display_offset == -1) |
c8d54615 | 156 | options->x11_display_offset = 10; |
e6e573bd | 157 | if (options->x11_use_localhost == -1) |
158 | options->x11_use_localhost = 1; | |
fa649821 | 159 | if (options->xauth_location == NULL) |
fd9ede94 | 160 | options->xauth_location = _PATH_XAUTH; |
5260325f | 161 | if (options->strict_modes == -1) |
162 | options->strict_modes = 1; | |
fd573618 | 163 | if (options->tcp_keep_alive == -1) |
164 | options->tcp_keep_alive = 1; | |
5eaf8578 | 165 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
5260325f | 166 | options->log_facility = SYSLOG_FACILITY_AUTH; |
5eaf8578 | 167 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
59c97189 | 168 | options->log_level = SYSLOG_LEVEL_INFO; |
5260325f | 169 | if (options->rhosts_rsa_authentication == -1) |
c8d54615 | 170 | options->rhosts_rsa_authentication = 0; |
8002af61 | 171 | if (options->hostbased_authentication == -1) |
172 | options->hostbased_authentication = 0; | |
173 | if (options->hostbased_uses_name_from_packet_only == -1) | |
174 | options->hostbased_uses_name_from_packet_only = 0; | |
5260325f | 175 | if (options->rsa_authentication == -1) |
176 | options->rsa_authentication = 1; | |
fa08c86b | 177 | if (options->pubkey_authentication == -1) |
178 | options->pubkey_authentication = 1; | |
5260325f | 179 | if (options->kerberos_authentication == -1) |
eadc806d | 180 | options->kerberos_authentication = 0; |
5260325f | 181 | if (options->kerberos_or_local_passwd == -1) |
182 | options->kerberos_or_local_passwd = 1; | |
183 | if (options->kerberos_ticket_cleanup == -1) | |
184 | options->kerberos_ticket_cleanup = 1; | |
a1e30b47 | 185 | if (options->kerberos_get_afs_token == -1) |
186 | options->kerberos_get_afs_token = 0; | |
7364bd04 | 187 | if (options->gss_authentication == -1) |
188 | options->gss_authentication = 0; | |
189 | if (options->gss_cleanup_creds == -1) | |
190 | options->gss_cleanup_creds = 1; | |
5260325f | 191 | if (options->password_authentication == -1) |
192 | options->password_authentication = 1; | |
94ec8c6b | 193 | if (options->kbd_interactive_authentication == -1) |
194 | options->kbd_interactive_authentication = 0; | |
5ba55ada | 195 | if (options->challenge_response_authentication == -1) |
196 | options->challenge_response_authentication = 1; | |
5260325f | 197 | if (options->permit_empty_passwd == -1) |
c8d54615 | 198 | options->permit_empty_passwd = 0; |
f00bab84 | 199 | if (options->permit_user_env == -1) |
200 | options->permit_user_env = 0; | |
5260325f | 201 | if (options->use_login == -1) |
202 | options->use_login = 0; | |
636f76ca | 203 | if (options->compression == -1) |
204 | options->compression = 1; | |
33de75a3 | 205 | if (options->allow_tcp_forwarding == -1) |
206 | options->allow_tcp_forwarding = 1; | |
1d1ffb87 | 207 | if (options->gateway_ports == -1) |
208 | options->gateway_ports = 0; | |
089fbbd2 | 209 | if (options->max_startups == -1) |
210 | options->max_startups = 10; | |
c345cf9d | 211 | if (options->max_startups_rate == -1) |
212 | options->max_startups_rate = 100; /* 100% */ | |
213 | if (options->max_startups_begin == -1) | |
214 | options->max_startups_begin = options->max_startups; | |
af4bd935 | 215 | if (options->max_authtries == -1) |
216 | options->max_authtries = DEFAULT_AUTH_FAIL_MAX; | |
c5a7d788 | 217 | if (options->use_dns == -1) |
218 | options->use_dns = 1; | |
3ffc6336 | 219 | if (options->client_alive_interval == -1) |
184eed6a | 220 | options->client_alive_interval = 0; |
3ffc6336 | 221 | if (options->client_alive_count_max == -1) |
222 | options->client_alive_count_max = 3; | |
5df83e07 | 223 | if (options->authorized_keys_file2 == NULL) { |
224 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
225 | if (options->authorized_keys_file != NULL) | |
226 | options->authorized_keys_file2 = options->authorized_keys_file; | |
227 | else | |
228 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
229 | } | |
230 | if (options->authorized_keys_file == NULL) | |
231 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
1853d1ef | 232 | |
2ee1b704 | 233 | /* Turn privilege separation on by default */ |
1853d1ef | 234 | if (use_privsep == -1) |
2ee1b704 | 235 | use_privsep = 1; |
e299a298 | 236 | |
4165b82e | 237 | #ifndef HAVE_MMAP |
e299a298 | 238 | if (use_privsep && options->compression == 1) { |
239 | error("This platform does not support both privilege " | |
240 | "separation and compression"); | |
241 | error("Compression disabled"); | |
242 | options->compression = 0; | |
243 | } | |
244 | #endif | |
245 | ||
8efc0c15 | 246 | } |
247 | ||
8efc0c15 | 248 | /* Keyword tokens. */ |
5260325f | 249 | typedef enum { |
250 | sBadOption, /* == unknown option */ | |
e15895cd | 251 | /* Portable-specific options */ |
7fceb20d | 252 | sUsePAM, |
e15895cd | 253 | /* Standard Options */ |
5260325f | 254 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, |
255 | sPermitRootLogin, sLogFacility, sLogLevel, | |
0598d99d | 256 | sRhostsRSAAuthentication, sRSAAuthentication, |
5260325f | 257 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
a1e30b47 | 258 | sKerberosGetAFSToken, |
1c590258 | 259 | sKerberosTgtPassing, sChallengeResponseAuthentication, |
31b41ceb | 260 | sPasswordAuthentication, sKbdInteractiveAuthentication, |
261 | sListenAddress, sAddressFamily, | |
4f4648f9 | 262 | sPrintMotd, sPrintLastLog, sIgnoreRhosts, |
e6e573bd | 263 | sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, |
fd573618 | 264 | sStrictModes, sEmptyPasswd, sTCPKeepAlive, |
f00bab84 | 265 | sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, |
33de75a3 | 266 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
b2552997 | 267 | sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, |
af4bd935 | 268 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, |
269 | sMaxStartups, sMaxAuthTries, | |
c5a7d788 | 270 | sBanner, sUseDNS, sHostbasedAuthentication, |
184eed6a | 271 | sHostbasedUsesNameFromPacketOnly, sClientAliveInterval, |
c8445989 | 272 | sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2, |
61a2c1da | 273 | sGssAuthentication, sGssCleanupCreds, sAcceptEnv, |
2ea6de2b | 274 | sUsePrivilegeSeparation, |
a2144546 | 275 | sDeprecated, sUnsupported |
8efc0c15 | 276 | } ServerOpCodes; |
277 | ||
278 | /* Textual representation of the tokens. */ | |
5260325f | 279 | static struct { |
280 | const char *name; | |
281 | ServerOpCodes opcode; | |
282 | } keywords[] = { | |
e15895cd | 283 | /* Portable-specific options */ |
b06b11ad | 284 | #ifdef USE_PAM |
fe46678b | 285 | { "usepam", sUsePAM }, |
b06b11ad | 286 | #else |
fe46678b | 287 | { "usepam", sUnsupported }, |
b06b11ad | 288 | #endif |
fe46678b | 289 | { "pamauthenticationviakbdint", sDeprecated }, |
e15895cd | 290 | /* Standard Options */ |
5260325f | 291 | { "port", sPort }, |
292 | { "hostkey", sHostKeyFile }, | |
fa08c86b | 293 | { "hostdsakey", sHostKeyFile }, /* alias */ |
2b87da3b | 294 | { "pidfile", sPidFile }, |
5260325f | 295 | { "serverkeybits", sServerKeyBits }, |
296 | { "logingracetime", sLoginGraceTime }, | |
297 | { "keyregenerationinterval", sKeyRegenerationTime }, | |
298 | { "permitrootlogin", sPermitRootLogin }, | |
299 | { "syslogfacility", sLogFacility }, | |
300 | { "loglevel", sLogLevel }, | |
0598d99d | 301 | { "rhostsauthentication", sDeprecated }, |
5260325f | 302 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, |
8002af61 | 303 | { "hostbasedauthentication", sHostbasedAuthentication }, |
304 | { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly }, | |
5260325f | 305 | { "rsaauthentication", sRSAAuthentication }, |
fa08c86b | 306 | { "pubkeyauthentication", sPubkeyAuthentication }, |
307 | { "dsaauthentication", sPubkeyAuthentication }, /* alias */ | |
1c590258 | 308 | #ifdef KRB5 |
5260325f | 309 | { "kerberosauthentication", sKerberosAuthentication }, |
310 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, | |
311 | { "kerberosticketcleanup", sKerberosTicketCleanup }, | |
bcfcc5f9 | 312 | #ifdef USE_AFS |
a1e30b47 | 313 | { "kerberosgetafstoken", sKerberosGetAFSToken }, |
309af4e5 | 314 | #else |
315 | { "kerberosgetafstoken", sUnsupported }, | |
316 | #endif | |
a2144546 | 317 | #else |
318 | { "kerberosauthentication", sUnsupported }, | |
319 | { "kerberosorlocalpasswd", sUnsupported }, | |
320 | { "kerberosticketcleanup", sUnsupported }, | |
a1e30b47 | 321 | { "kerberosgetafstoken", sUnsupported }, |
a2144546 | 322 | #endif |
8f73f7bb | 323 | { "kerberostgtpassing", sUnsupported }, |
a2144546 | 324 | { "afstokenpassing", sUnsupported }, |
7364bd04 | 325 | #ifdef GSSAPI |
326 | { "gssapiauthentication", sGssAuthentication }, | |
e377c083 | 327 | { "gssapicleanupcredentials", sGssCleanupCreds }, |
7364bd04 | 328 | #else |
329 | { "gssapiauthentication", sUnsupported }, | |
e377c083 | 330 | { "gssapicleanupcredentials", sUnsupported }, |
7364bd04 | 331 | #endif |
5260325f | 332 | { "passwordauthentication", sPasswordAuthentication }, |
94ec8c6b | 333 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication }, |
d464095c | 334 | { "challengeresponseauthentication", sChallengeResponseAuthentication }, |
335 | { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */ | |
5c53a31e | 336 | { "checkmail", sDeprecated }, |
5260325f | 337 | { "listenaddress", sListenAddress }, |
31b41ceb | 338 | { "addressfamily", sAddressFamily }, |
5260325f | 339 | { "printmotd", sPrintMotd }, |
4f4648f9 | 340 | { "printlastlog", sPrintLastLog }, |
5260325f | 341 | { "ignorerhosts", sIgnoreRhosts }, |
342 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
343 | { "x11forwarding", sX11Forwarding }, | |
344 | { "x11displayoffset", sX11DisplayOffset }, | |
e6e573bd | 345 | { "x11uselocalhost", sX11UseLocalhost }, |
fa649821 | 346 | { "xauthlocation", sXAuthLocation }, |
5260325f | 347 | { "strictmodes", sStrictModes }, |
348 | { "permitemptypasswords", sEmptyPasswd }, | |
f00bab84 | 349 | { "permituserenvironment", sPermitUserEnvironment }, |
5260325f | 350 | { "uselogin", sUseLogin }, |
636f76ca | 351 | { "compression", sCompression }, |
fd573618 | 352 | { "tcpkeepalive", sTCPKeepAlive }, |
353 | { "keepalive", sTCPKeepAlive }, /* obsolete alias */ | |
33de75a3 | 354 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 355 | { "allowusers", sAllowUsers }, |
356 | { "denyusers", sDenyUsers }, | |
357 | { "allowgroups", sAllowGroups }, | |
358 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 359 | { "ciphers", sCiphers }, |
b2552997 | 360 | { "macs", sMacs }, |
a8be9f80 | 361 | { "protocol", sProtocol }, |
1d1ffb87 | 362 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 363 | { "subsystem", sSubsystem }, |
089fbbd2 | 364 | { "maxstartups", sMaxStartups }, |
af4bd935 | 365 | { "maxauthtries", sMaxAuthTries }, |
eea39c02 | 366 | { "banner", sBanner }, |
c5a7d788 | 367 | { "usedns", sUseDNS }, |
368 | { "verifyreversemapping", sDeprecated }, | |
369 | { "reversemappingcheck", sDeprecated }, | |
3ffc6336 | 370 | { "clientaliveinterval", sClientAliveInterval }, |
371 | { "clientalivecountmax", sClientAliveCountMax }, | |
c8445989 | 372 | { "authorizedkeysfile", sAuthorizedKeysFile }, |
373 | { "authorizedkeysfile2", sAuthorizedKeysFile2 }, | |
1853d1ef | 374 | { "useprivilegeseparation", sUsePrivilegeSeparation}, |
61a2c1da | 375 | { "acceptenv", sAcceptEnv }, |
17a3011c | 376 | { NULL, sBadOption } |
8efc0c15 | 377 | }; |
378 | ||
aa3378df | 379 | /* |
6be9a5e8 | 380 | * Returns the number of the token pointed to by cp or sBadOption. |
aa3378df | 381 | */ |
8efc0c15 | 382 | |
6ae2364d | 383 | static ServerOpCodes |
5260325f | 384 | parse_token(const char *cp, const char *filename, |
385 | int linenum) | |
8efc0c15 | 386 | { |
1e3b8b07 | 387 | u_int i; |
8efc0c15 | 388 | |
5260325f | 389 | for (i = 0; keywords[i].name; i++) |
aa3378df | 390 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 391 | return keywords[i].opcode; |
8efc0c15 | 392 | |
b7c70970 | 393 | error("%s: line %d: Bad configuration option: %s", |
394 | filename, linenum, cp); | |
5260325f | 395 | return sBadOption; |
8efc0c15 | 396 | } |
397 | ||
396c147e | 398 | static void |
2d2a2c65 | 399 | add_listen_addr(ServerOptions *options, char *addr, u_short port) |
48e671d5 | 400 | { |
48e671d5 | 401 | int i; |
402 | ||
403 | if (options->num_ports == 0) | |
404 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
31b41ceb | 405 | if (options->address_family == -1) |
406 | options->address_family = AF_UNSPEC; | |
2d2a2c65 | 407 | if (port == 0) |
d11c1288 | 408 | for (i = 0; i < options->num_ports; i++) |
409 | add_one_listen_addr(options, addr, options->ports[i]); | |
410 | else | |
2d2a2c65 | 411 | add_one_listen_addr(options, addr, port); |
d11c1288 | 412 | } |
413 | ||
396c147e | 414 | static void |
d11c1288 | 415 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) |
416 | { | |
417 | struct addrinfo hints, *ai, *aitop; | |
418 | char strport[NI_MAXSERV]; | |
419 | int gaierr; | |
420 | ||
421 | memset(&hints, 0, sizeof(hints)); | |
31b41ceb | 422 | hints.ai_family = options->address_family; |
d11c1288 | 423 | hints.ai_socktype = SOCK_STREAM; |
424 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
7528d467 | 425 | snprintf(strport, sizeof strport, "%u", port); |
d11c1288 | 426 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
427 | fatal("bad addr or host: %s (%s)", | |
428 | addr ? addr : "<NULL>", | |
429 | gai_strerror(gaierr)); | |
430 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
431 | ; | |
432 | ai->ai_next = options->listen_addrs; | |
433 | options->listen_addrs = aitop; | |
48e671d5 | 434 | } |
435 | ||
2717fa0f | 436 | int |
437 | process_server_config_line(ServerOptions *options, char *line, | |
438 | const char *filename, int linenum) | |
8efc0c15 | 439 | { |
d11c1288 | 440 | char *cp, **charptr, *arg, *p; |
7528d467 | 441 | int *intptr, value, i, n; |
5260325f | 442 | ServerOpCodes opcode; |
443 | ||
2717fa0f | 444 | cp = line; |
445 | arg = strdelim(&cp); | |
446 | /* Ignore leading whitespace */ | |
447 | if (*arg == '\0') | |
704b1659 | 448 | arg = strdelim(&cp); |
2717fa0f | 449 | if (!arg || !*arg || *arg == '#') |
450 | return 0; | |
451 | intptr = NULL; | |
452 | charptr = NULL; | |
453 | opcode = parse_token(arg, filename, linenum); | |
454 | switch (opcode) { | |
455 | /* Portable-specific options */ | |
7fceb20d | 456 | case sUsePAM: |
457 | intptr = &options->use_pam; | |
2717fa0f | 458 | goto parse_flag; |
48e671d5 | 459 | |
2717fa0f | 460 | /* Standard Options */ |
461 | case sBadOption: | |
462 | return -1; | |
463 | case sPort: | |
464 | /* ignore ports from configfile if cmdline specifies ports */ | |
465 | if (options->ports_from_cmdline) | |
466 | return 0; | |
467 | if (options->listen_addrs != NULL) | |
468 | fatal("%s line %d: ports must be specified before " | |
3a454b6a | 469 | "ListenAddress.", filename, linenum); |
2717fa0f | 470 | if (options->num_ports >= MAX_PORTS) |
471 | fatal("%s line %d: too many ports.", | |
472 | filename, linenum); | |
473 | arg = strdelim(&cp); | |
474 | if (!arg || *arg == '\0') | |
475 | fatal("%s line %d: missing port number.", | |
476 | filename, linenum); | |
477 | options->ports[options->num_ports++] = a2port(arg); | |
478 | if (options->ports[options->num_ports-1] == 0) | |
479 | fatal("%s line %d: Badly formatted port number.", | |
480 | filename, linenum); | |
481 | break; | |
482 | ||
483 | case sServerKeyBits: | |
484 | intptr = &options->server_key_bits; | |
5260325f | 485 | parse_int: |
2717fa0f | 486 | arg = strdelim(&cp); |
487 | if (!arg || *arg == '\0') | |
488 | fatal("%s line %d: missing integer value.", | |
489 | filename, linenum); | |
490 | value = atoi(arg); | |
491 | if (*intptr == -1) | |
492 | *intptr = value; | |
493 | break; | |
494 | ||
495 | case sLoginGraceTime: | |
496 | intptr = &options->login_grace_time; | |
e2b1fb42 | 497 | parse_time: |
2717fa0f | 498 | arg = strdelim(&cp); |
499 | if (!arg || *arg == '\0') | |
500 | fatal("%s line %d: missing time value.", | |
501 | filename, linenum); | |
502 | if ((value = convtime(arg)) == -1) | |
503 | fatal("%s line %d: invalid time value.", | |
504 | filename, linenum); | |
505 | if (*intptr == -1) | |
506 | *intptr = value; | |
507 | break; | |
508 | ||
509 | case sKeyRegenerationTime: | |
510 | intptr = &options->key_regeneration_time; | |
511 | goto parse_time; | |
512 | ||
513 | case sListenAddress: | |
514 | arg = strdelim(&cp); | |
515 | if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0) | |
516 | fatal("%s line %d: missing inet addr.", | |
517 | filename, linenum); | |
518 | if (*arg == '[') { | |
519 | if ((p = strchr(arg, ']')) == NULL) | |
520 | fatal("%s line %d: bad ipv6 inet addr usage.", | |
e2b1fb42 | 521 | filename, linenum); |
2717fa0f | 522 | arg++; |
523 | memmove(p, p+1, strlen(p+1)+1); | |
524 | } else if (((p = strchr(arg, ':')) == NULL) || | |
525 | (strchr(p+1, ':') != NULL)) { | |
526 | add_listen_addr(options, arg, 0); | |
e2b1fb42 | 527 | break; |
2717fa0f | 528 | } |
529 | if (*p == ':') { | |
530 | u_short port; | |
5260325f | 531 | |
2717fa0f | 532 | p++; |
533 | if (*p == '\0') | |
534 | fatal("%s line %d: bad inet addr:port usage.", | |
48e671d5 | 535 | filename, linenum); |
2717fa0f | 536 | else { |
537 | *(p-1) = '\0'; | |
538 | if ((port = a2port(p)) == 0) | |
539 | fatal("%s line %d: bad port number.", | |
d11c1288 | 540 | filename, linenum); |
2717fa0f | 541 | add_listen_addr(options, arg, port); |
d11c1288 | 542 | } |
2717fa0f | 543 | } else if (*p == '\0') |
544 | add_listen_addr(options, arg, 0); | |
545 | else | |
546 | fatal("%s line %d: bad inet addr usage.", | |
547 | filename, linenum); | |
548 | break; | |
549 | ||
31b41ceb | 550 | case sAddressFamily: |
551 | arg = strdelim(&cp); | |
552 | intptr = &options->address_family; | |
553 | if (options->listen_addrs != NULL) | |
554 | fatal("%s line %d: address family must be specified before " | |
555 | "ListenAddress.", filename, linenum); | |
556 | if (strcasecmp(arg, "inet") == 0) | |
557 | value = AF_INET; | |
558 | else if (strcasecmp(arg, "inet6") == 0) | |
559 | value = AF_INET6; | |
560 | else if (strcasecmp(arg, "any") == 0) | |
561 | value = AF_UNSPEC; | |
562 | else | |
563 | fatal("%s line %d: unsupported address family \"%s\".", | |
564 | filename, linenum, arg); | |
565 | if (*intptr == -1) | |
566 | *intptr = value; | |
567 | break; | |
568 | ||
2717fa0f | 569 | case sHostKeyFile: |
570 | intptr = &options->num_host_key_files; | |
571 | if (*intptr >= MAX_HOSTKEYS) | |
572 | fatal("%s line %d: too many host keys specified (max %d).", | |
573 | filename, linenum, MAX_HOSTKEYS); | |
574 | charptr = &options->host_key_files[*intptr]; | |
fa649821 | 575 | parse_filename: |
2717fa0f | 576 | arg = strdelim(&cp); |
577 | if (!arg || *arg == '\0') | |
578 | fatal("%s line %d: missing file name.", | |
579 | filename, linenum); | |
580 | if (*charptr == NULL) { | |
581 | *charptr = tilde_expand_filename(arg, getuid()); | |
582 | /* increase optional counter */ | |
583 | if (intptr != NULL) | |
584 | *intptr = *intptr + 1; | |
585 | } | |
586 | break; | |
0fbe8c74 | 587 | |
2717fa0f | 588 | case sPidFile: |
589 | charptr = &options->pid_file; | |
590 | goto parse_filename; | |
5260325f | 591 | |
2717fa0f | 592 | case sPermitRootLogin: |
593 | intptr = &options->permit_root_login; | |
594 | arg = strdelim(&cp); | |
595 | if (!arg || *arg == '\0') | |
596 | fatal("%s line %d: missing yes/" | |
597 | "without-password/forced-commands-only/no " | |
598 | "argument.", filename, linenum); | |
599 | value = 0; /* silence compiler */ | |
600 | if (strcmp(arg, "without-password") == 0) | |
601 | value = PERMIT_NO_PASSWD; | |
602 | else if (strcmp(arg, "forced-commands-only") == 0) | |
603 | value = PERMIT_FORCED_ONLY; | |
604 | else if (strcmp(arg, "yes") == 0) | |
605 | value = PERMIT_YES; | |
606 | else if (strcmp(arg, "no") == 0) | |
607 | value = PERMIT_NO; | |
608 | else | |
609 | fatal("%s line %d: Bad yes/" | |
610 | "without-password/forced-commands-only/no " | |
611 | "argument: %s", filename, linenum, arg); | |
612 | if (*intptr == -1) | |
613 | *intptr = value; | |
614 | break; | |
615 | ||
616 | case sIgnoreRhosts: | |
617 | intptr = &options->ignore_rhosts; | |
5260325f | 618 | parse_flag: |
2717fa0f | 619 | arg = strdelim(&cp); |
620 | if (!arg || *arg == '\0') | |
621 | fatal("%s line %d: missing yes/no argument.", | |
622 | filename, linenum); | |
623 | value = 0; /* silence compiler */ | |
624 | if (strcmp(arg, "yes") == 0) | |
625 | value = 1; | |
626 | else if (strcmp(arg, "no") == 0) | |
627 | value = 0; | |
628 | else | |
629 | fatal("%s line %d: Bad yes/no argument: %s", | |
630 | filename, linenum, arg); | |
631 | if (*intptr == -1) | |
632 | *intptr = value; | |
633 | break; | |
634 | ||
635 | case sIgnoreUserKnownHosts: | |
636 | intptr = &options->ignore_user_known_hosts; | |
637 | goto parse_flag; | |
638 | ||
2717fa0f | 639 | case sRhostsRSAAuthentication: |
640 | intptr = &options->rhosts_rsa_authentication; | |
641 | goto parse_flag; | |
642 | ||
643 | case sHostbasedAuthentication: | |
644 | intptr = &options->hostbased_authentication; | |
645 | goto parse_flag; | |
646 | ||
647 | case sHostbasedUsesNameFromPacketOnly: | |
648 | intptr = &options->hostbased_uses_name_from_packet_only; | |
649 | goto parse_flag; | |
650 | ||
651 | case sRSAAuthentication: | |
652 | intptr = &options->rsa_authentication; | |
653 | goto parse_flag; | |
654 | ||
655 | case sPubkeyAuthentication: | |
656 | intptr = &options->pubkey_authentication; | |
657 | goto parse_flag; | |
d0ec7f42 | 658 | |
2717fa0f | 659 | case sKerberosAuthentication: |
660 | intptr = &options->kerberos_authentication; | |
661 | goto parse_flag; | |
5260325f | 662 | |
2717fa0f | 663 | case sKerberosOrLocalPasswd: |
664 | intptr = &options->kerberos_or_local_passwd; | |
665 | goto parse_flag; | |
5260325f | 666 | |
2717fa0f | 667 | case sKerberosTicketCleanup: |
668 | intptr = &options->kerberos_ticket_cleanup; | |
669 | goto parse_flag; | |
d0ec7f42 | 670 | |
a1e30b47 | 671 | case sKerberosGetAFSToken: |
672 | intptr = &options->kerberos_get_afs_token; | |
673 | goto parse_flag; | |
674 | ||
7364bd04 | 675 | case sGssAuthentication: |
676 | intptr = &options->gss_authentication; | |
677 | goto parse_flag; | |
678 | ||
679 | case sGssCleanupCreds: | |
680 | intptr = &options->gss_cleanup_creds; | |
681 | goto parse_flag; | |
682 | ||
2717fa0f | 683 | case sPasswordAuthentication: |
684 | intptr = &options->password_authentication; | |
685 | goto parse_flag; | |
5260325f | 686 | |
2717fa0f | 687 | case sKbdInteractiveAuthentication: |
688 | intptr = &options->kbd_interactive_authentication; | |
689 | goto parse_flag; | |
8002af61 | 690 | |
2717fa0f | 691 | case sChallengeResponseAuthentication: |
692 | intptr = &options->challenge_response_authentication; | |
693 | goto parse_flag; | |
8002af61 | 694 | |
2717fa0f | 695 | case sPrintMotd: |
696 | intptr = &options->print_motd; | |
697 | goto parse_flag; | |
5260325f | 698 | |
2717fa0f | 699 | case sPrintLastLog: |
700 | intptr = &options->print_lastlog; | |
701 | goto parse_flag; | |
5260325f | 702 | |
2717fa0f | 703 | case sX11Forwarding: |
704 | intptr = &options->x11_forwarding; | |
705 | goto parse_flag; | |
5260325f | 706 | |
2717fa0f | 707 | case sX11DisplayOffset: |
708 | intptr = &options->x11_display_offset; | |
709 | goto parse_int; | |
8efc0c15 | 710 | |
e6e573bd | 711 | case sX11UseLocalhost: |
712 | intptr = &options->x11_use_localhost; | |
713 | goto parse_flag; | |
714 | ||
2717fa0f | 715 | case sXAuthLocation: |
716 | charptr = &options->xauth_location; | |
717 | goto parse_filename; | |
5260325f | 718 | |
2717fa0f | 719 | case sStrictModes: |
720 | intptr = &options->strict_modes; | |
721 | goto parse_flag; | |
5260325f | 722 | |
fd573618 | 723 | case sTCPKeepAlive: |
724 | intptr = &options->tcp_keep_alive; | |
2717fa0f | 725 | goto parse_flag; |
33de75a3 | 726 | |
2717fa0f | 727 | case sEmptyPasswd: |
728 | intptr = &options->permit_empty_passwd; | |
729 | goto parse_flag; | |
5260325f | 730 | |
f00bab84 | 731 | case sPermitUserEnvironment: |
732 | intptr = &options->permit_user_env; | |
733 | goto parse_flag; | |
734 | ||
2717fa0f | 735 | case sUseLogin: |
736 | intptr = &options->use_login; | |
737 | goto parse_flag; | |
5260325f | 738 | |
636f76ca | 739 | case sCompression: |
740 | intptr = &options->compression; | |
741 | goto parse_flag; | |
742 | ||
2717fa0f | 743 | case sGatewayPorts: |
744 | intptr = &options->gateway_ports; | |
745 | goto parse_flag; | |
5260325f | 746 | |
c5a7d788 | 747 | case sUseDNS: |
748 | intptr = &options->use_dns; | |
2717fa0f | 749 | goto parse_flag; |
5260325f | 750 | |
2717fa0f | 751 | case sLogFacility: |
752 | intptr = (int *) &options->log_facility; | |
753 | arg = strdelim(&cp); | |
754 | value = log_facility_number(arg); | |
5eaf8578 | 755 | if (value == SYSLOG_FACILITY_NOT_SET) |
2717fa0f | 756 | fatal("%.200s line %d: unsupported log facility '%s'", |
757 | filename, linenum, arg ? arg : "<NONE>"); | |
758 | if (*intptr == -1) | |
759 | *intptr = (SyslogFacility) value; | |
760 | break; | |
761 | ||
762 | case sLogLevel: | |
763 | intptr = (int *) &options->log_level; | |
764 | arg = strdelim(&cp); | |
765 | value = log_level_number(arg); | |
5eaf8578 | 766 | if (value == SYSLOG_LEVEL_NOT_SET) |
2717fa0f | 767 | fatal("%.200s line %d: unsupported log level '%s'", |
768 | filename, linenum, arg ? arg : "<NONE>"); | |
769 | if (*intptr == -1) | |
770 | *intptr = (LogLevel) value; | |
771 | break; | |
772 | ||
773 | case sAllowTcpForwarding: | |
774 | intptr = &options->allow_tcp_forwarding; | |
775 | goto parse_flag; | |
776 | ||
1853d1ef | 777 | case sUsePrivilegeSeparation: |
778 | intptr = &use_privsep; | |
779 | goto parse_flag; | |
780 | ||
2717fa0f | 781 | case sAllowUsers: |
782 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
783 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
784 | fatal("%s line %d: too many allow users.", | |
785 | filename, linenum); | |
7528d467 | 786 | options->allow_users[options->num_allow_users++] = |
787 | xstrdup(arg); | |
2717fa0f | 788 | } |
789 | break; | |
a8be9f80 | 790 | |
2717fa0f | 791 | case sDenyUsers: |
792 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
793 | if (options->num_deny_users >= MAX_DENY_USERS) | |
794 | fatal( "%s line %d: too many deny users.", | |
795 | filename, linenum); | |
7528d467 | 796 | options->deny_users[options->num_deny_users++] = |
797 | xstrdup(arg); | |
2717fa0f | 798 | } |
799 | break; | |
b2552997 | 800 | |
2717fa0f | 801 | case sAllowGroups: |
802 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
803 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
804 | fatal("%s line %d: too many allow groups.", | |
805 | filename, linenum); | |
7528d467 | 806 | options->allow_groups[options->num_allow_groups++] = |
807 | xstrdup(arg); | |
2717fa0f | 808 | } |
809 | break; | |
a8be9f80 | 810 | |
2717fa0f | 811 | case sDenyGroups: |
812 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
813 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
814 | fatal("%s line %d: too many deny groups.", | |
815 | filename, linenum); | |
816 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
817 | } | |
818 | break; | |
38c295d6 | 819 | |
2717fa0f | 820 | case sCiphers: |
821 | arg = strdelim(&cp); | |
822 | if (!arg || *arg == '\0') | |
823 | fatal("%s line %d: Missing argument.", filename, linenum); | |
824 | if (!ciphers_valid(arg)) | |
825 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
826 | filename, linenum, arg ? arg : "<NONE>"); | |
827 | if (options->ciphers == NULL) | |
828 | options->ciphers = xstrdup(arg); | |
829 | break; | |
830 | ||
831 | case sMacs: | |
832 | arg = strdelim(&cp); | |
833 | if (!arg || *arg == '\0') | |
834 | fatal("%s line %d: Missing argument.", filename, linenum); | |
835 | if (!mac_valid(arg)) | |
836 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
837 | filename, linenum, arg ? arg : "<NONE>"); | |
838 | if (options->macs == NULL) | |
839 | options->macs = xstrdup(arg); | |
840 | break; | |
841 | ||
842 | case sProtocol: | |
843 | intptr = &options->protocol; | |
844 | arg = strdelim(&cp); | |
845 | if (!arg || *arg == '\0') | |
846 | fatal("%s line %d: Missing argument.", filename, linenum); | |
847 | value = proto_spec(arg); | |
848 | if (value == SSH_PROTO_UNKNOWN) | |
849 | fatal("%s line %d: Bad protocol spec '%s'.", | |
184eed6a | 850 | filename, linenum, arg ? arg : "<NONE>"); |
2717fa0f | 851 | if (*intptr == SSH_PROTO_UNKNOWN) |
852 | *intptr = value; | |
853 | break; | |
854 | ||
855 | case sSubsystem: | |
856 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
857 | fatal("%s line %d: too many subsystems defined.", | |
184eed6a | 858 | filename, linenum); |
2717fa0f | 859 | } |
860 | arg = strdelim(&cp); | |
861 | if (!arg || *arg == '\0') | |
862 | fatal("%s line %d: Missing subsystem name.", | |
184eed6a | 863 | filename, linenum); |
2717fa0f | 864 | for (i = 0; i < options->num_subsystems; i++) |
865 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
866 | fatal("%s line %d: Subsystem '%s' already defined.", | |
184eed6a | 867 | filename, linenum, arg); |
2717fa0f | 868 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); |
869 | arg = strdelim(&cp); | |
870 | if (!arg || *arg == '\0') | |
871 | fatal("%s line %d: Missing subsystem command.", | |
184eed6a | 872 | filename, linenum); |
2717fa0f | 873 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
874 | options->num_subsystems++; | |
875 | break; | |
876 | ||
877 | case sMaxStartups: | |
878 | arg = strdelim(&cp); | |
879 | if (!arg || *arg == '\0') | |
880 | fatal("%s line %d: Missing MaxStartups spec.", | |
184eed6a | 881 | filename, linenum); |
2717fa0f | 882 | if ((n = sscanf(arg, "%d:%d:%d", |
883 | &options->max_startups_begin, | |
884 | &options->max_startups_rate, | |
885 | &options->max_startups)) == 3) { | |
886 | if (options->max_startups_begin > | |
887 | options->max_startups || | |
888 | options->max_startups_rate > 100 || | |
889 | options->max_startups_rate < 1) | |
c345cf9d | 890 | fatal("%s line %d: Illegal MaxStartups spec.", |
97de229c | 891 | filename, linenum); |
2717fa0f | 892 | } else if (n != 1) |
893 | fatal("%s line %d: Illegal MaxStartups spec.", | |
894 | filename, linenum); | |
895 | else | |
896 | options->max_startups = options->max_startups_begin; | |
897 | break; | |
898 | ||
af4bd935 | 899 | case sMaxAuthTries: |
900 | intptr = &options->max_authtries; | |
901 | goto parse_int; | |
902 | ||
2717fa0f | 903 | case sBanner: |
904 | charptr = &options->banner; | |
905 | goto parse_filename; | |
906 | /* | |
907 | * These options can contain %X options expanded at | |
908 | * connect time, so that you can specify paths like: | |
909 | * | |
910 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
911 | */ | |
912 | case sAuthorizedKeysFile: | |
913 | case sAuthorizedKeysFile2: | |
914 | charptr = (opcode == sAuthorizedKeysFile ) ? | |
915 | &options->authorized_keys_file : | |
916 | &options->authorized_keys_file2; | |
917 | goto parse_filename; | |
918 | ||
919 | case sClientAliveInterval: | |
920 | intptr = &options->client_alive_interval; | |
921 | goto parse_time; | |
922 | ||
923 | case sClientAliveCountMax: | |
924 | intptr = &options->client_alive_count_max; | |
925 | goto parse_int; | |
926 | ||
61a2c1da | 927 | case sAcceptEnv: |
928 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
929 | if (strchr(arg, '=') != NULL) | |
930 | fatal("%s line %d: Invalid environment name.", | |
931 | filename, linenum); | |
932 | if (options->num_accept_env >= MAX_ACCEPT_ENV) | |
933 | fatal("%s line %d: too many allow env.", | |
934 | filename, linenum); | |
935 | options->accept_env[options->num_accept_env++] = | |
936 | xstrdup(arg); | |
937 | } | |
938 | break; | |
939 | ||
2717fa0f | 940 | case sDeprecated: |
bbe88b6d | 941 | logit("%s line %d: Deprecated option %s", |
2717fa0f | 942 | filename, linenum, arg); |
943 | while (arg) | |
944 | arg = strdelim(&cp); | |
945 | break; | |
946 | ||
a2144546 | 947 | case sUnsupported: |
948 | logit("%s line %d: Unsupported option %s", | |
949 | filename, linenum, arg); | |
950 | while (arg) | |
951 | arg = strdelim(&cp); | |
952 | break; | |
953 | ||
2717fa0f | 954 | default: |
955 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
956 | filename, linenum, arg, opcode); | |
957 | } | |
958 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
959 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
960 | filename, linenum, arg); | |
961 | return 0; | |
962 | } | |
089fbbd2 | 963 | |
2717fa0f | 964 | /* Reads the server configuration file. */ |
5c53a31e | 965 | |
2717fa0f | 966 | void |
b9a549d7 | 967 | load_server_config(const char *filename, Buffer *conf) |
2717fa0f | 968 | { |
b9a549d7 | 969 | char line[1024], *cp; |
7528d467 | 970 | FILE *f; |
2717fa0f | 971 | |
b9a549d7 | 972 | debug2("%s: filename %s", __func__, filename); |
973 | if ((f = fopen(filename, "r")) == NULL) { | |
2717fa0f | 974 | perror(filename); |
975 | exit(1); | |
976 | } | |
b9a549d7 | 977 | buffer_clear(conf); |
2717fa0f | 978 | while (fgets(line, sizeof(line), f)) { |
b9a549d7 | 979 | /* |
980 | * Trim out comments and strip whitespace | |
f2107e97 | 981 | * NB - preserve newlines, they are needed to reproduce |
b9a549d7 | 982 | * line numbers later for error messages |
983 | */ | |
984 | if ((cp = strchr(line, '#')) != NULL) | |
985 | memcpy(cp, "\n", 2); | |
986 | cp = line + strspn(line, " \t\r"); | |
987 | ||
988 | buffer_append(conf, cp, strlen(cp)); | |
8efc0c15 | 989 | } |
b9a549d7 | 990 | buffer_append(conf, "\0", 1); |
5260325f | 991 | fclose(f); |
b9a549d7 | 992 | debug2("%s: done config len = %d", __func__, buffer_len(conf)); |
993 | } | |
994 | ||
995 | void | |
996 | parse_server_config(ServerOptions *options, const char *filename, Buffer *conf) | |
997 | { | |
998 | int linenum, bad_options = 0; | |
16acb158 | 999 | char *cp, *obuf, *cbuf; |
b9a549d7 | 1000 | |
1001 | debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); | |
1002 | ||
16acb158 | 1003 | obuf = cbuf = xstrdup(buffer_ptr(conf)); |
861cc543 | 1004 | linenum = 1; |
b9a549d7 | 1005 | while((cp = strsep(&cbuf, "\n")) != NULL) { |
1006 | if (process_server_config_line(options, cp, filename, | |
1007 | linenum++) != 0) | |
1008 | bad_options++; | |
1009 | } | |
16acb158 | 1010 | xfree(obuf); |
b7c70970 | 1011 | if (bad_options > 0) |
1012 | fatal("%s: terminating, %d bad configuration options", | |
1013 | filename, bad_options); | |
8efc0c15 | 1014 | } |