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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" | |
861cc543 | 13 | RCSID("$OpenBSD: servconf.c,v 1.137 2004/08/13 11:09:24 dtucker 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 | |
42f11eb2 | 29 | /* AF_UNSPEC or AF_INET or AF_INET6 */ |
30 | extern int IPv4or6; | |
1853d1ef | 31 | /* Use of privilege separation or not */ |
32 | extern int use_privsep; | |
42f11eb2 | 33 | |
8efc0c15 | 34 | /* Initializes the server options to their default values. */ |
35 | ||
6ae2364d | 36 | void |
5260325f | 37 | initialize_server_options(ServerOptions *options) |
8efc0c15 | 38 | { |
5260325f | 39 | memset(options, 0, sizeof(*options)); |
e15895cd | 40 | |
41 | /* Portable-specific options */ | |
7fceb20d | 42 | options->use_pam = -1; |
e15895cd | 43 | |
44 | /* Standard Options */ | |
48e671d5 | 45 | options->num_ports = 0; |
46 | options->ports_from_cmdline = 0; | |
47 | options->listen_addrs = NULL; | |
fa08c86b | 48 | options->num_host_key_files = 0; |
0fbe8c74 | 49 | options->pid_file = NULL; |
5260325f | 50 | options->server_key_bits = -1; |
51 | options->login_grace_time = -1; | |
52 | options->key_regeneration_time = -1; | |
15853e93 | 53 | options->permit_root_login = PERMIT_NOT_SET; |
5260325f | 54 | options->ignore_rhosts = -1; |
55 | options->ignore_user_known_hosts = -1; | |
56 | options->print_motd = -1; | |
4f4648f9 | 57 | options->print_lastlog = -1; |
5260325f | 58 | options->x11_forwarding = -1; |
59 | options->x11_display_offset = -1; | |
e6e573bd | 60 | options->x11_use_localhost = -1; |
fa649821 | 61 | options->xauth_location = NULL; |
5260325f | 62 | options->strict_modes = -1; |
fd573618 | 63 | options->tcp_keep_alive = -1; |
5eaf8578 | 64 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
65 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
5260325f | 66 | options->rhosts_rsa_authentication = -1; |
8002af61 | 67 | options->hostbased_authentication = -1; |
68 | options->hostbased_uses_name_from_packet_only = -1; | |
5260325f | 69 | options->rsa_authentication = -1; |
fa08c86b | 70 | options->pubkey_authentication = -1; |
5260325f | 71 | options->kerberos_authentication = -1; |
72 | options->kerberos_or_local_passwd = -1; | |
73 | options->kerberos_ticket_cleanup = -1; | |
a1e30b47 | 74 | options->kerberos_get_afs_token = -1; |
7364bd04 | 75 | options->gss_authentication=-1; |
76 | options->gss_cleanup_creds = -1; | |
5260325f | 77 | options->password_authentication = -1; |
94ec8c6b | 78 | options->kbd_interactive_authentication = -1; |
5ba55ada | 79 | options->challenge_response_authentication = -1; |
5260325f | 80 | options->permit_empty_passwd = -1; |
f00bab84 | 81 | options->permit_user_env = -1; |
5260325f | 82 | options->use_login = -1; |
636f76ca | 83 | options->compression = -1; |
33de75a3 | 84 | options->allow_tcp_forwarding = -1; |
5260325f | 85 | options->num_allow_users = 0; |
86 | options->num_deny_users = 0; | |
87 | options->num_allow_groups = 0; | |
88 | options->num_deny_groups = 0; | |
a8be9f80 | 89 | options->ciphers = NULL; |
b2552997 | 90 | options->macs = NULL; |
a8be9f80 | 91 | options->protocol = SSH_PROTO_UNKNOWN; |
1d1ffb87 | 92 | options->gateway_ports = -1; |
38c295d6 | 93 | options->num_subsystems = 0; |
c345cf9d | 94 | options->max_startups_begin = -1; |
95 | options->max_startups_rate = -1; | |
089fbbd2 | 96 | options->max_startups = -1; |
af4bd935 | 97 | options->max_authtries = -1; |
eea39c02 | 98 | options->banner = NULL; |
c5a7d788 | 99 | options->use_dns = -1; |
3ffc6336 | 100 | options->client_alive_interval = -1; |
101 | options->client_alive_count_max = -1; | |
c8445989 | 102 | options->authorized_keys_file = NULL; |
103 | options->authorized_keys_file2 = NULL; | |
61a2c1da | 104 | options->num_accept_env = 0; |
1853d1ef | 105 | |
1853d1ef | 106 | /* Needs to be accessable in many places */ |
107 | use_privsep = -1; | |
8efc0c15 | 108 | } |
109 | ||
6ae2364d | 110 | void |
5260325f | 111 | fill_default_server_options(ServerOptions *options) |
8efc0c15 | 112 | { |
e15895cd | 113 | /* Portable-specific options */ |
7fceb20d | 114 | if (options->use_pam == -1) |
0a23d79f | 115 | options->use_pam = 0; |
e15895cd | 116 | |
117 | /* Standard Options */ | |
fa08c86b | 118 | if (options->protocol == SSH_PROTO_UNKNOWN) |
119 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
120 | if (options->num_host_key_files == 0) { | |
121 | /* fill default hostkeys for protocols */ | |
122 | if (options->protocol & SSH_PROTO_1) | |
0f84fe37 | 123 | options->host_key_files[options->num_host_key_files++] = |
124 | _PATH_HOST_KEY_FILE; | |
125 | if (options->protocol & SSH_PROTO_2) { | |
126 | options->host_key_files[options->num_host_key_files++] = | |
127 | _PATH_HOST_RSA_KEY_FILE; | |
128 | options->host_key_files[options->num_host_key_files++] = | |
129 | _PATH_HOST_DSA_KEY_FILE; | |
130 | } | |
fa08c86b | 131 | } |
48e671d5 | 132 | if (options->num_ports == 0) |
133 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
134 | if (options->listen_addrs == NULL) | |
2d2a2c65 | 135 | add_listen_addr(options, NULL, 0); |
0fbe8c74 | 136 | if (options->pid_file == NULL) |
42f11eb2 | 137 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; |
5260325f | 138 | if (options->server_key_bits == -1) |
139 | options->server_key_bits = 768; | |
140 | if (options->login_grace_time == -1) | |
3445ca02 | 141 | options->login_grace_time = 120; |
5260325f | 142 | if (options->key_regeneration_time == -1) |
143 | options->key_regeneration_time = 3600; | |
15853e93 | 144 | if (options->permit_root_login == PERMIT_NOT_SET) |
145 | options->permit_root_login = PERMIT_YES; | |
5260325f | 146 | if (options->ignore_rhosts == -1) |
c8d54615 | 147 | options->ignore_rhosts = 1; |
5260325f | 148 | if (options->ignore_user_known_hosts == -1) |
149 | options->ignore_user_known_hosts = 0; | |
5260325f | 150 | if (options->print_motd == -1) |
151 | options->print_motd = 1; | |
4f4648f9 | 152 | if (options->print_lastlog == -1) |
153 | options->print_lastlog = 1; | |
5260325f | 154 | if (options->x11_forwarding == -1) |
c8d54615 | 155 | options->x11_forwarding = 0; |
5260325f | 156 | if (options->x11_display_offset == -1) |
c8d54615 | 157 | options->x11_display_offset = 10; |
e6e573bd | 158 | if (options->x11_use_localhost == -1) |
159 | options->x11_use_localhost = 1; | |
fa649821 | 160 | if (options->xauth_location == NULL) |
fd9ede94 | 161 | options->xauth_location = _PATH_XAUTH; |
5260325f | 162 | if (options->strict_modes == -1) |
163 | options->strict_modes = 1; | |
fd573618 | 164 | if (options->tcp_keep_alive == -1) |
165 | options->tcp_keep_alive = 1; | |
5eaf8578 | 166 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
5260325f | 167 | options->log_facility = SYSLOG_FACILITY_AUTH; |
5eaf8578 | 168 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
59c97189 | 169 | options->log_level = SYSLOG_LEVEL_INFO; |
5260325f | 170 | if (options->rhosts_rsa_authentication == -1) |
c8d54615 | 171 | options->rhosts_rsa_authentication = 0; |
8002af61 | 172 | if (options->hostbased_authentication == -1) |
173 | options->hostbased_authentication = 0; | |
174 | if (options->hostbased_uses_name_from_packet_only == -1) | |
175 | options->hostbased_uses_name_from_packet_only = 0; | |
5260325f | 176 | if (options->rsa_authentication == -1) |
177 | options->rsa_authentication = 1; | |
fa08c86b | 178 | if (options->pubkey_authentication == -1) |
179 | options->pubkey_authentication = 1; | |
5260325f | 180 | if (options->kerberos_authentication == -1) |
eadc806d | 181 | options->kerberos_authentication = 0; |
5260325f | 182 | if (options->kerberos_or_local_passwd == -1) |
183 | options->kerberos_or_local_passwd = 1; | |
184 | if (options->kerberos_ticket_cleanup == -1) | |
185 | options->kerberos_ticket_cleanup = 1; | |
a1e30b47 | 186 | if (options->kerberos_get_afs_token == -1) |
187 | options->kerberos_get_afs_token = 0; | |
7364bd04 | 188 | if (options->gss_authentication == -1) |
189 | options->gss_authentication = 0; | |
190 | if (options->gss_cleanup_creds == -1) | |
191 | options->gss_cleanup_creds = 1; | |
5260325f | 192 | if (options->password_authentication == -1) |
193 | options->password_authentication = 1; | |
94ec8c6b | 194 | if (options->kbd_interactive_authentication == -1) |
195 | options->kbd_interactive_authentication = 0; | |
5ba55ada | 196 | if (options->challenge_response_authentication == -1) |
197 | options->challenge_response_authentication = 1; | |
5260325f | 198 | if (options->permit_empty_passwd == -1) |
c8d54615 | 199 | options->permit_empty_passwd = 0; |
f00bab84 | 200 | if (options->permit_user_env == -1) |
201 | options->permit_user_env = 0; | |
5260325f | 202 | if (options->use_login == -1) |
203 | options->use_login = 0; | |
636f76ca | 204 | if (options->compression == -1) |
205 | options->compression = 1; | |
33de75a3 | 206 | if (options->allow_tcp_forwarding == -1) |
207 | options->allow_tcp_forwarding = 1; | |
1d1ffb87 | 208 | if (options->gateway_ports == -1) |
209 | options->gateway_ports = 0; | |
089fbbd2 | 210 | if (options->max_startups == -1) |
211 | options->max_startups = 10; | |
c345cf9d | 212 | if (options->max_startups_rate == -1) |
213 | options->max_startups_rate = 100; /* 100% */ | |
214 | if (options->max_startups_begin == -1) | |
215 | options->max_startups_begin = options->max_startups; | |
af4bd935 | 216 | if (options->max_authtries == -1) |
217 | options->max_authtries = DEFAULT_AUTH_FAIL_MAX; | |
c5a7d788 | 218 | if (options->use_dns == -1) |
219 | options->use_dns = 1; | |
3ffc6336 | 220 | if (options->client_alive_interval == -1) |
184eed6a | 221 | options->client_alive_interval = 0; |
3ffc6336 | 222 | if (options->client_alive_count_max == -1) |
223 | options->client_alive_count_max = 3; | |
5df83e07 | 224 | if (options->authorized_keys_file2 == NULL) { |
225 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
226 | if (options->authorized_keys_file != NULL) | |
227 | options->authorized_keys_file2 = options->authorized_keys_file; | |
228 | else | |
229 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
230 | } | |
231 | if (options->authorized_keys_file == NULL) | |
232 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
1853d1ef | 233 | |
2ee1b704 | 234 | /* Turn privilege separation on by default */ |
1853d1ef | 235 | if (use_privsep == -1) |
2ee1b704 | 236 | use_privsep = 1; |
e299a298 | 237 | |
4165b82e | 238 | #ifndef HAVE_MMAP |
e299a298 | 239 | if (use_privsep && options->compression == 1) { |
240 | error("This platform does not support both privilege " | |
241 | "separation and compression"); | |
242 | error("Compression disabled"); | |
243 | options->compression = 0; | |
244 | } | |
245 | #endif | |
246 | ||
8efc0c15 | 247 | } |
248 | ||
8efc0c15 | 249 | /* Keyword tokens. */ |
5260325f | 250 | typedef enum { |
251 | sBadOption, /* == unknown option */ | |
e15895cd | 252 | /* Portable-specific options */ |
7fceb20d | 253 | sUsePAM, |
e15895cd | 254 | /* Standard Options */ |
5260325f | 255 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, |
256 | sPermitRootLogin, sLogFacility, sLogLevel, | |
0598d99d | 257 | sRhostsRSAAuthentication, sRSAAuthentication, |
5260325f | 258 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
a1e30b47 | 259 | sKerberosGetAFSToken, |
1c590258 | 260 | sKerberosTgtPassing, sChallengeResponseAuthentication, |
94ec8c6b | 261 | sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress, |
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 }, |
338 | { "printmotd", sPrintMotd }, | |
4f4648f9 | 339 | { "printlastlog", sPrintLastLog }, |
5260325f | 340 | { "ignorerhosts", sIgnoreRhosts }, |
341 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, | |
342 | { "x11forwarding", sX11Forwarding }, | |
343 | { "x11displayoffset", sX11DisplayOffset }, | |
e6e573bd | 344 | { "x11uselocalhost", sX11UseLocalhost }, |
fa649821 | 345 | { "xauthlocation", sXAuthLocation }, |
5260325f | 346 | { "strictmodes", sStrictModes }, |
347 | { "permitemptypasswords", sEmptyPasswd }, | |
f00bab84 | 348 | { "permituserenvironment", sPermitUserEnvironment }, |
5260325f | 349 | { "uselogin", sUseLogin }, |
636f76ca | 350 | { "compression", sCompression }, |
fd573618 | 351 | { "tcpkeepalive", sTCPKeepAlive }, |
352 | { "keepalive", sTCPKeepAlive }, /* obsolete alias */ | |
33de75a3 | 353 | { "allowtcpforwarding", sAllowTcpForwarding }, |
5260325f | 354 | { "allowusers", sAllowUsers }, |
355 | { "denyusers", sDenyUsers }, | |
356 | { "allowgroups", sAllowGroups }, | |
357 | { "denygroups", sDenyGroups }, | |
a8be9f80 | 358 | { "ciphers", sCiphers }, |
b2552997 | 359 | { "macs", sMacs }, |
a8be9f80 | 360 | { "protocol", sProtocol }, |
1d1ffb87 | 361 | { "gatewayports", sGatewayPorts }, |
38c295d6 | 362 | { "subsystem", sSubsystem }, |
089fbbd2 | 363 | { "maxstartups", sMaxStartups }, |
af4bd935 | 364 | { "maxauthtries", sMaxAuthTries }, |
eea39c02 | 365 | { "banner", sBanner }, |
c5a7d788 | 366 | { "usedns", sUseDNS }, |
367 | { "verifyreversemapping", sDeprecated }, | |
368 | { "reversemappingcheck", sDeprecated }, | |
3ffc6336 | 369 | { "clientaliveinterval", sClientAliveInterval }, |
370 | { "clientalivecountmax", sClientAliveCountMax }, | |
c8445989 | 371 | { "authorizedkeysfile", sAuthorizedKeysFile }, |
372 | { "authorizedkeysfile2", sAuthorizedKeysFile2 }, | |
1853d1ef | 373 | { "useprivilegeseparation", sUsePrivilegeSeparation}, |
61a2c1da | 374 | { "acceptenv", sAcceptEnv }, |
17a3011c | 375 | { NULL, sBadOption } |
8efc0c15 | 376 | }; |
377 | ||
aa3378df | 378 | /* |
6be9a5e8 | 379 | * Returns the number of the token pointed to by cp or sBadOption. |
aa3378df | 380 | */ |
8efc0c15 | 381 | |
6ae2364d | 382 | static ServerOpCodes |
5260325f | 383 | parse_token(const char *cp, const char *filename, |
384 | int linenum) | |
8efc0c15 | 385 | { |
1e3b8b07 | 386 | u_int i; |
8efc0c15 | 387 | |
5260325f | 388 | for (i = 0; keywords[i].name; i++) |
aa3378df | 389 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 390 | return keywords[i].opcode; |
8efc0c15 | 391 | |
b7c70970 | 392 | error("%s: line %d: Bad configuration option: %s", |
393 | filename, linenum, cp); | |
5260325f | 394 | return sBadOption; |
8efc0c15 | 395 | } |
396 | ||
396c147e | 397 | static void |
2d2a2c65 | 398 | add_listen_addr(ServerOptions *options, char *addr, u_short port) |
48e671d5 | 399 | { |
48e671d5 | 400 | int i; |
401 | ||
402 | if (options->num_ports == 0) | |
403 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
2d2a2c65 | 404 | if (port == 0) |
d11c1288 | 405 | for (i = 0; i < options->num_ports; i++) |
406 | add_one_listen_addr(options, addr, options->ports[i]); | |
407 | else | |
2d2a2c65 | 408 | add_one_listen_addr(options, addr, port); |
d11c1288 | 409 | } |
410 | ||
396c147e | 411 | static void |
d11c1288 | 412 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) |
413 | { | |
414 | struct addrinfo hints, *ai, *aitop; | |
415 | char strport[NI_MAXSERV]; | |
416 | int gaierr; | |
417 | ||
418 | memset(&hints, 0, sizeof(hints)); | |
419 | hints.ai_family = IPv4or6; | |
420 | hints.ai_socktype = SOCK_STREAM; | |
421 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
7528d467 | 422 | snprintf(strport, sizeof strport, "%u", port); |
d11c1288 | 423 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
424 | fatal("bad addr or host: %s (%s)", | |
425 | addr ? addr : "<NULL>", | |
426 | gai_strerror(gaierr)); | |
427 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
428 | ; | |
429 | ai->ai_next = options->listen_addrs; | |
430 | options->listen_addrs = aitop; | |
48e671d5 | 431 | } |
432 | ||
2717fa0f | 433 | int |
434 | process_server_config_line(ServerOptions *options, char *line, | |
435 | const char *filename, int linenum) | |
8efc0c15 | 436 | { |
d11c1288 | 437 | char *cp, **charptr, *arg, *p; |
7528d467 | 438 | int *intptr, value, i, n; |
5260325f | 439 | ServerOpCodes opcode; |
440 | ||
2717fa0f | 441 | cp = line; |
442 | arg = strdelim(&cp); | |
443 | /* Ignore leading whitespace */ | |
444 | if (*arg == '\0') | |
704b1659 | 445 | arg = strdelim(&cp); |
2717fa0f | 446 | if (!arg || !*arg || *arg == '#') |
447 | return 0; | |
448 | intptr = NULL; | |
449 | charptr = NULL; | |
450 | opcode = parse_token(arg, filename, linenum); | |
451 | switch (opcode) { | |
452 | /* Portable-specific options */ | |
7fceb20d | 453 | case sUsePAM: |
454 | intptr = &options->use_pam; | |
2717fa0f | 455 | goto parse_flag; |
48e671d5 | 456 | |
2717fa0f | 457 | /* Standard Options */ |
458 | case sBadOption: | |
459 | return -1; | |
460 | case sPort: | |
461 | /* ignore ports from configfile if cmdline specifies ports */ | |
462 | if (options->ports_from_cmdline) | |
463 | return 0; | |
464 | if (options->listen_addrs != NULL) | |
465 | fatal("%s line %d: ports must be specified before " | |
3a454b6a | 466 | "ListenAddress.", filename, linenum); |
2717fa0f | 467 | if (options->num_ports >= MAX_PORTS) |
468 | fatal("%s line %d: too many ports.", | |
469 | filename, linenum); | |
470 | arg = strdelim(&cp); | |
471 | if (!arg || *arg == '\0') | |
472 | fatal("%s line %d: missing port number.", | |
473 | filename, linenum); | |
474 | options->ports[options->num_ports++] = a2port(arg); | |
475 | if (options->ports[options->num_ports-1] == 0) | |
476 | fatal("%s line %d: Badly formatted port number.", | |
477 | filename, linenum); | |
478 | break; | |
479 | ||
480 | case sServerKeyBits: | |
481 | intptr = &options->server_key_bits; | |
5260325f | 482 | parse_int: |
2717fa0f | 483 | arg = strdelim(&cp); |
484 | if (!arg || *arg == '\0') | |
485 | fatal("%s line %d: missing integer value.", | |
486 | filename, linenum); | |
487 | value = atoi(arg); | |
488 | if (*intptr == -1) | |
489 | *intptr = value; | |
490 | break; | |
491 | ||
492 | case sLoginGraceTime: | |
493 | intptr = &options->login_grace_time; | |
e2b1fb42 | 494 | parse_time: |
2717fa0f | 495 | arg = strdelim(&cp); |
496 | if (!arg || *arg == '\0') | |
497 | fatal("%s line %d: missing time value.", | |
498 | filename, linenum); | |
499 | if ((value = convtime(arg)) == -1) | |
500 | fatal("%s line %d: invalid time value.", | |
501 | filename, linenum); | |
502 | if (*intptr == -1) | |
503 | *intptr = value; | |
504 | break; | |
505 | ||
506 | case sKeyRegenerationTime: | |
507 | intptr = &options->key_regeneration_time; | |
508 | goto parse_time; | |
509 | ||
510 | case sListenAddress: | |
511 | arg = strdelim(&cp); | |
512 | if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0) | |
513 | fatal("%s line %d: missing inet addr.", | |
514 | filename, linenum); | |
515 | if (*arg == '[') { | |
516 | if ((p = strchr(arg, ']')) == NULL) | |
517 | fatal("%s line %d: bad ipv6 inet addr usage.", | |
e2b1fb42 | 518 | filename, linenum); |
2717fa0f | 519 | arg++; |
520 | memmove(p, p+1, strlen(p+1)+1); | |
521 | } else if (((p = strchr(arg, ':')) == NULL) || | |
522 | (strchr(p+1, ':') != NULL)) { | |
523 | add_listen_addr(options, arg, 0); | |
e2b1fb42 | 524 | break; |
2717fa0f | 525 | } |
526 | if (*p == ':') { | |
527 | u_short port; | |
5260325f | 528 | |
2717fa0f | 529 | p++; |
530 | if (*p == '\0') | |
531 | fatal("%s line %d: bad inet addr:port usage.", | |
48e671d5 | 532 | filename, linenum); |
2717fa0f | 533 | else { |
534 | *(p-1) = '\0'; | |
535 | if ((port = a2port(p)) == 0) | |
536 | fatal("%s line %d: bad port number.", | |
d11c1288 | 537 | filename, linenum); |
2717fa0f | 538 | add_listen_addr(options, arg, port); |
d11c1288 | 539 | } |
2717fa0f | 540 | } else if (*p == '\0') |
541 | add_listen_addr(options, arg, 0); | |
542 | else | |
543 | fatal("%s line %d: bad inet addr usage.", | |
544 | filename, linenum); | |
545 | break; | |
546 | ||
547 | case sHostKeyFile: | |
548 | intptr = &options->num_host_key_files; | |
549 | if (*intptr >= MAX_HOSTKEYS) | |
550 | fatal("%s line %d: too many host keys specified (max %d).", | |
551 | filename, linenum, MAX_HOSTKEYS); | |
552 | charptr = &options->host_key_files[*intptr]; | |
fa649821 | 553 | parse_filename: |
2717fa0f | 554 | arg = strdelim(&cp); |
555 | if (!arg || *arg == '\0') | |
556 | fatal("%s line %d: missing file name.", | |
557 | filename, linenum); | |
558 | if (*charptr == NULL) { | |
559 | *charptr = tilde_expand_filename(arg, getuid()); | |
560 | /* increase optional counter */ | |
561 | if (intptr != NULL) | |
562 | *intptr = *intptr + 1; | |
563 | } | |
564 | break; | |
0fbe8c74 | 565 | |
2717fa0f | 566 | case sPidFile: |
567 | charptr = &options->pid_file; | |
568 | goto parse_filename; | |
5260325f | 569 | |
2717fa0f | 570 | case sPermitRootLogin: |
571 | intptr = &options->permit_root_login; | |
572 | arg = strdelim(&cp); | |
573 | if (!arg || *arg == '\0') | |
574 | fatal("%s line %d: missing yes/" | |
575 | "without-password/forced-commands-only/no " | |
576 | "argument.", filename, linenum); | |
577 | value = 0; /* silence compiler */ | |
578 | if (strcmp(arg, "without-password") == 0) | |
579 | value = PERMIT_NO_PASSWD; | |
580 | else if (strcmp(arg, "forced-commands-only") == 0) | |
581 | value = PERMIT_FORCED_ONLY; | |
582 | else if (strcmp(arg, "yes") == 0) | |
583 | value = PERMIT_YES; | |
584 | else if (strcmp(arg, "no") == 0) | |
585 | value = PERMIT_NO; | |
586 | else | |
587 | fatal("%s line %d: Bad yes/" | |
588 | "without-password/forced-commands-only/no " | |
589 | "argument: %s", filename, linenum, arg); | |
590 | if (*intptr == -1) | |
591 | *intptr = value; | |
592 | break; | |
593 | ||
594 | case sIgnoreRhosts: | |
595 | intptr = &options->ignore_rhosts; | |
5260325f | 596 | parse_flag: |
2717fa0f | 597 | arg = strdelim(&cp); |
598 | if (!arg || *arg == '\0') | |
599 | fatal("%s line %d: missing yes/no argument.", | |
600 | filename, linenum); | |
601 | value = 0; /* silence compiler */ | |
602 | if (strcmp(arg, "yes") == 0) | |
603 | value = 1; | |
604 | else if (strcmp(arg, "no") == 0) | |
605 | value = 0; | |
606 | else | |
607 | fatal("%s line %d: Bad yes/no argument: %s", | |
608 | filename, linenum, arg); | |
609 | if (*intptr == -1) | |
610 | *intptr = value; | |
611 | break; | |
612 | ||
613 | case sIgnoreUserKnownHosts: | |
614 | intptr = &options->ignore_user_known_hosts; | |
615 | goto parse_flag; | |
616 | ||
2717fa0f | 617 | case sRhostsRSAAuthentication: |
618 | intptr = &options->rhosts_rsa_authentication; | |
619 | goto parse_flag; | |
620 | ||
621 | case sHostbasedAuthentication: | |
622 | intptr = &options->hostbased_authentication; | |
623 | goto parse_flag; | |
624 | ||
625 | case sHostbasedUsesNameFromPacketOnly: | |
626 | intptr = &options->hostbased_uses_name_from_packet_only; | |
627 | goto parse_flag; | |
628 | ||
629 | case sRSAAuthentication: | |
630 | intptr = &options->rsa_authentication; | |
631 | goto parse_flag; | |
632 | ||
633 | case sPubkeyAuthentication: | |
634 | intptr = &options->pubkey_authentication; | |
635 | goto parse_flag; | |
d0ec7f42 | 636 | |
2717fa0f | 637 | case sKerberosAuthentication: |
638 | intptr = &options->kerberos_authentication; | |
639 | goto parse_flag; | |
5260325f | 640 | |
2717fa0f | 641 | case sKerberosOrLocalPasswd: |
642 | intptr = &options->kerberos_or_local_passwd; | |
643 | goto parse_flag; | |
5260325f | 644 | |
2717fa0f | 645 | case sKerberosTicketCleanup: |
646 | intptr = &options->kerberos_ticket_cleanup; | |
647 | goto parse_flag; | |
d0ec7f42 | 648 | |
a1e30b47 | 649 | case sKerberosGetAFSToken: |
650 | intptr = &options->kerberos_get_afs_token; | |
651 | goto parse_flag; | |
652 | ||
7364bd04 | 653 | case sGssAuthentication: |
654 | intptr = &options->gss_authentication; | |
655 | goto parse_flag; | |
656 | ||
657 | case sGssCleanupCreds: | |
658 | intptr = &options->gss_cleanup_creds; | |
659 | goto parse_flag; | |
660 | ||
2717fa0f | 661 | case sPasswordAuthentication: |
662 | intptr = &options->password_authentication; | |
663 | goto parse_flag; | |
5260325f | 664 | |
2717fa0f | 665 | case sKbdInteractiveAuthentication: |
666 | intptr = &options->kbd_interactive_authentication; | |
667 | goto parse_flag; | |
8002af61 | 668 | |
2717fa0f | 669 | case sChallengeResponseAuthentication: |
670 | intptr = &options->challenge_response_authentication; | |
671 | goto parse_flag; | |
8002af61 | 672 | |
2717fa0f | 673 | case sPrintMotd: |
674 | intptr = &options->print_motd; | |
675 | goto parse_flag; | |
5260325f | 676 | |
2717fa0f | 677 | case sPrintLastLog: |
678 | intptr = &options->print_lastlog; | |
679 | goto parse_flag; | |
5260325f | 680 | |
2717fa0f | 681 | case sX11Forwarding: |
682 | intptr = &options->x11_forwarding; | |
683 | goto parse_flag; | |
5260325f | 684 | |
2717fa0f | 685 | case sX11DisplayOffset: |
686 | intptr = &options->x11_display_offset; | |
687 | goto parse_int; | |
8efc0c15 | 688 | |
e6e573bd | 689 | case sX11UseLocalhost: |
690 | intptr = &options->x11_use_localhost; | |
691 | goto parse_flag; | |
692 | ||
2717fa0f | 693 | case sXAuthLocation: |
694 | charptr = &options->xauth_location; | |
695 | goto parse_filename; | |
5260325f | 696 | |
2717fa0f | 697 | case sStrictModes: |
698 | intptr = &options->strict_modes; | |
699 | goto parse_flag; | |
5260325f | 700 | |
fd573618 | 701 | case sTCPKeepAlive: |
702 | intptr = &options->tcp_keep_alive; | |
2717fa0f | 703 | goto parse_flag; |
33de75a3 | 704 | |
2717fa0f | 705 | case sEmptyPasswd: |
706 | intptr = &options->permit_empty_passwd; | |
707 | goto parse_flag; | |
5260325f | 708 | |
f00bab84 | 709 | case sPermitUserEnvironment: |
710 | intptr = &options->permit_user_env; | |
711 | goto parse_flag; | |
712 | ||
2717fa0f | 713 | case sUseLogin: |
714 | intptr = &options->use_login; | |
715 | goto parse_flag; | |
5260325f | 716 | |
636f76ca | 717 | case sCompression: |
718 | intptr = &options->compression; | |
719 | goto parse_flag; | |
720 | ||
2717fa0f | 721 | case sGatewayPorts: |
722 | intptr = &options->gateway_ports; | |
723 | goto parse_flag; | |
5260325f | 724 | |
c5a7d788 | 725 | case sUseDNS: |
726 | intptr = &options->use_dns; | |
2717fa0f | 727 | goto parse_flag; |
5260325f | 728 | |
2717fa0f | 729 | case sLogFacility: |
730 | intptr = (int *) &options->log_facility; | |
731 | arg = strdelim(&cp); | |
732 | value = log_facility_number(arg); | |
5eaf8578 | 733 | if (value == SYSLOG_FACILITY_NOT_SET) |
2717fa0f | 734 | fatal("%.200s line %d: unsupported log facility '%s'", |
735 | filename, linenum, arg ? arg : "<NONE>"); | |
736 | if (*intptr == -1) | |
737 | *intptr = (SyslogFacility) value; | |
738 | break; | |
739 | ||
740 | case sLogLevel: | |
741 | intptr = (int *) &options->log_level; | |
742 | arg = strdelim(&cp); | |
743 | value = log_level_number(arg); | |
5eaf8578 | 744 | if (value == SYSLOG_LEVEL_NOT_SET) |
2717fa0f | 745 | fatal("%.200s line %d: unsupported log level '%s'", |
746 | filename, linenum, arg ? arg : "<NONE>"); | |
747 | if (*intptr == -1) | |
748 | *intptr = (LogLevel) value; | |
749 | break; | |
750 | ||
751 | case sAllowTcpForwarding: | |
752 | intptr = &options->allow_tcp_forwarding; | |
753 | goto parse_flag; | |
754 | ||
1853d1ef | 755 | case sUsePrivilegeSeparation: |
756 | intptr = &use_privsep; | |
757 | goto parse_flag; | |
758 | ||
2717fa0f | 759 | case sAllowUsers: |
760 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
761 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
762 | fatal("%s line %d: too many allow users.", | |
763 | filename, linenum); | |
7528d467 | 764 | options->allow_users[options->num_allow_users++] = |
765 | xstrdup(arg); | |
2717fa0f | 766 | } |
767 | break; | |
a8be9f80 | 768 | |
2717fa0f | 769 | case sDenyUsers: |
770 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
771 | if (options->num_deny_users >= MAX_DENY_USERS) | |
772 | fatal( "%s line %d: too many deny users.", | |
773 | filename, linenum); | |
7528d467 | 774 | options->deny_users[options->num_deny_users++] = |
775 | xstrdup(arg); | |
2717fa0f | 776 | } |
777 | break; | |
b2552997 | 778 | |
2717fa0f | 779 | case sAllowGroups: |
780 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
781 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
782 | fatal("%s line %d: too many allow groups.", | |
783 | filename, linenum); | |
7528d467 | 784 | options->allow_groups[options->num_allow_groups++] = |
785 | xstrdup(arg); | |
2717fa0f | 786 | } |
787 | break; | |
a8be9f80 | 788 | |
2717fa0f | 789 | case sDenyGroups: |
790 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
791 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
792 | fatal("%s line %d: too many deny groups.", | |
793 | filename, linenum); | |
794 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
795 | } | |
796 | break; | |
38c295d6 | 797 | |
2717fa0f | 798 | case sCiphers: |
799 | arg = strdelim(&cp); | |
800 | if (!arg || *arg == '\0') | |
801 | fatal("%s line %d: Missing argument.", filename, linenum); | |
802 | if (!ciphers_valid(arg)) | |
803 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
804 | filename, linenum, arg ? arg : "<NONE>"); | |
805 | if (options->ciphers == NULL) | |
806 | options->ciphers = xstrdup(arg); | |
807 | break; | |
808 | ||
809 | case sMacs: | |
810 | arg = strdelim(&cp); | |
811 | if (!arg || *arg == '\0') | |
812 | fatal("%s line %d: Missing argument.", filename, linenum); | |
813 | if (!mac_valid(arg)) | |
814 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
815 | filename, linenum, arg ? arg : "<NONE>"); | |
816 | if (options->macs == NULL) | |
817 | options->macs = xstrdup(arg); | |
818 | break; | |
819 | ||
820 | case sProtocol: | |
821 | intptr = &options->protocol; | |
822 | arg = strdelim(&cp); | |
823 | if (!arg || *arg == '\0') | |
824 | fatal("%s line %d: Missing argument.", filename, linenum); | |
825 | value = proto_spec(arg); | |
826 | if (value == SSH_PROTO_UNKNOWN) | |
827 | fatal("%s line %d: Bad protocol spec '%s'.", | |
184eed6a | 828 | filename, linenum, arg ? arg : "<NONE>"); |
2717fa0f | 829 | if (*intptr == SSH_PROTO_UNKNOWN) |
830 | *intptr = value; | |
831 | break; | |
832 | ||
833 | case sSubsystem: | |
834 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
835 | fatal("%s line %d: too many subsystems defined.", | |
184eed6a | 836 | filename, linenum); |
2717fa0f | 837 | } |
838 | arg = strdelim(&cp); | |
839 | if (!arg || *arg == '\0') | |
840 | fatal("%s line %d: Missing subsystem name.", | |
184eed6a | 841 | filename, linenum); |
2717fa0f | 842 | for (i = 0; i < options->num_subsystems; i++) |
843 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
844 | fatal("%s line %d: Subsystem '%s' already defined.", | |
184eed6a | 845 | filename, linenum, arg); |
2717fa0f | 846 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); |
847 | arg = strdelim(&cp); | |
848 | if (!arg || *arg == '\0') | |
849 | fatal("%s line %d: Missing subsystem command.", | |
184eed6a | 850 | filename, linenum); |
2717fa0f | 851 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
852 | options->num_subsystems++; | |
853 | break; | |
854 | ||
855 | case sMaxStartups: | |
856 | arg = strdelim(&cp); | |
857 | if (!arg || *arg == '\0') | |
858 | fatal("%s line %d: Missing MaxStartups spec.", | |
184eed6a | 859 | filename, linenum); |
2717fa0f | 860 | if ((n = sscanf(arg, "%d:%d:%d", |
861 | &options->max_startups_begin, | |
862 | &options->max_startups_rate, | |
863 | &options->max_startups)) == 3) { | |
864 | if (options->max_startups_begin > | |
865 | options->max_startups || | |
866 | options->max_startups_rate > 100 || | |
867 | options->max_startups_rate < 1) | |
c345cf9d | 868 | fatal("%s line %d: Illegal MaxStartups spec.", |
97de229c | 869 | filename, linenum); |
2717fa0f | 870 | } else if (n != 1) |
871 | fatal("%s line %d: Illegal MaxStartups spec.", | |
872 | filename, linenum); | |
873 | else | |
874 | options->max_startups = options->max_startups_begin; | |
875 | break; | |
876 | ||
af4bd935 | 877 | case sMaxAuthTries: |
878 | intptr = &options->max_authtries; | |
879 | goto parse_int; | |
880 | ||
2717fa0f | 881 | case sBanner: |
882 | charptr = &options->banner; | |
883 | goto parse_filename; | |
884 | /* | |
885 | * These options can contain %X options expanded at | |
886 | * connect time, so that you can specify paths like: | |
887 | * | |
888 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
889 | */ | |
890 | case sAuthorizedKeysFile: | |
891 | case sAuthorizedKeysFile2: | |
892 | charptr = (opcode == sAuthorizedKeysFile ) ? | |
893 | &options->authorized_keys_file : | |
894 | &options->authorized_keys_file2; | |
895 | goto parse_filename; | |
896 | ||
897 | case sClientAliveInterval: | |
898 | intptr = &options->client_alive_interval; | |
899 | goto parse_time; | |
900 | ||
901 | case sClientAliveCountMax: | |
902 | intptr = &options->client_alive_count_max; | |
903 | goto parse_int; | |
904 | ||
61a2c1da | 905 | case sAcceptEnv: |
906 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
907 | if (strchr(arg, '=') != NULL) | |
908 | fatal("%s line %d: Invalid environment name.", | |
909 | filename, linenum); | |
910 | if (options->num_accept_env >= MAX_ACCEPT_ENV) | |
911 | fatal("%s line %d: too many allow env.", | |
912 | filename, linenum); | |
913 | options->accept_env[options->num_accept_env++] = | |
914 | xstrdup(arg); | |
915 | } | |
916 | break; | |
917 | ||
2717fa0f | 918 | case sDeprecated: |
bbe88b6d | 919 | logit("%s line %d: Deprecated option %s", |
2717fa0f | 920 | filename, linenum, arg); |
921 | while (arg) | |
922 | arg = strdelim(&cp); | |
923 | break; | |
924 | ||
a2144546 | 925 | case sUnsupported: |
926 | logit("%s line %d: Unsupported option %s", | |
927 | filename, linenum, arg); | |
928 | while (arg) | |
929 | arg = strdelim(&cp); | |
930 | break; | |
931 | ||
2717fa0f | 932 | default: |
933 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
934 | filename, linenum, arg, opcode); | |
935 | } | |
936 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
937 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
938 | filename, linenum, arg); | |
939 | return 0; | |
940 | } | |
089fbbd2 | 941 | |
2717fa0f | 942 | /* Reads the server configuration file. */ |
5c53a31e | 943 | |
2717fa0f | 944 | void |
b9a549d7 | 945 | load_server_config(const char *filename, Buffer *conf) |
2717fa0f | 946 | { |
b9a549d7 | 947 | char line[1024], *cp; |
7528d467 | 948 | FILE *f; |
2717fa0f | 949 | |
b9a549d7 | 950 | debug2("%s: filename %s", __func__, filename); |
951 | if ((f = fopen(filename, "r")) == NULL) { | |
2717fa0f | 952 | perror(filename); |
953 | exit(1); | |
954 | } | |
b9a549d7 | 955 | buffer_clear(conf); |
2717fa0f | 956 | while (fgets(line, sizeof(line), f)) { |
b9a549d7 | 957 | /* |
958 | * Trim out comments and strip whitespace | |
f2107e97 | 959 | * NB - preserve newlines, they are needed to reproduce |
b9a549d7 | 960 | * line numbers later for error messages |
961 | */ | |
962 | if ((cp = strchr(line, '#')) != NULL) | |
963 | memcpy(cp, "\n", 2); | |
964 | cp = line + strspn(line, " \t\r"); | |
965 | ||
966 | buffer_append(conf, cp, strlen(cp)); | |
8efc0c15 | 967 | } |
b9a549d7 | 968 | buffer_append(conf, "\0", 1); |
5260325f | 969 | fclose(f); |
b9a549d7 | 970 | debug2("%s: done config len = %d", __func__, buffer_len(conf)); |
971 | } | |
972 | ||
973 | void | |
974 | parse_server_config(ServerOptions *options, const char *filename, Buffer *conf) | |
975 | { | |
976 | int linenum, bad_options = 0; | |
16acb158 | 977 | char *cp, *obuf, *cbuf; |
b9a549d7 | 978 | |
979 | debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); | |
980 | ||
16acb158 | 981 | obuf = cbuf = xstrdup(buffer_ptr(conf)); |
861cc543 | 982 | linenum = 1; |
b9a549d7 | 983 | while((cp = strsep(&cbuf, "\n")) != NULL) { |
984 | if (process_server_config_line(options, cp, filename, | |
985 | linenum++) != 0) | |
986 | bad_options++; | |
987 | } | |
16acb158 | 988 | xfree(obuf); |
b7c70970 | 989 | if (bad_options > 0) |
990 | fatal("%s: terminating, %d bad configuration options", | |
991 | filename, bad_options); | |
8efc0c15 | 992 | } |