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30460aeb | 1 | /* $OpenBSD: servconf.c,v 1.165 2006/08/14 12:40:25 dtucker Exp $ */ |
3c0ef626 | 2 | /* |
3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
4 | * All rights reserved | |
5 | * | |
6 | * As far as I am concerned, the code I have written for this software | |
7 | * can be used freely for any purpose. Any derived versions of this | |
8 | * software must be clearly marked as such, and if the derived work is | |
9 | * incompatible with the protocol description in the RFC file, it must be | |
10 | * called by a name other than "ssh" or "Secure Shell". | |
11 | */ | |
12 | ||
13 | #include "includes.h" | |
3c0ef626 | 14 | |
30460aeb | 15 | #include <sys/types.h> |
16 | #include <sys/socket.h> | |
17 | ||
18 | #include <netdb.h> | |
19 | #include <pwd.h> | |
20 | #include <stdio.h> | |
21 | #include <stdlib.h> | |
22 | #include <string.h> | |
23 | #include <signal.h> | |
24 | #include <unistd.h> | |
25 | #include <stdarg.h> | |
26 | ||
27 | #include "xmalloc.h" | |
3c0ef626 | 28 | #include "ssh.h" |
29 | #include "log.h" | |
30460aeb | 30 | #include "buffer.h" |
3c0ef626 | 31 | #include "servconf.h" |
3c0ef626 | 32 | #include "compat.h" |
33 | #include "pathnames.h" | |
3c0ef626 | 34 | #include "misc.h" |
35 | #include "cipher.h" | |
30460aeb | 36 | #include "key.h" |
3c0ef626 | 37 | #include "kex.h" |
38 | #include "mac.h" | |
30460aeb | 39 | #include "match.h" |
40 | #include "channels.h" | |
41 | #include "groupaccess.h" | |
3c0ef626 | 42 | |
43 | static void add_listen_addr(ServerOptions *, char *, u_short); | |
44 | static void add_one_listen_addr(ServerOptions *, char *, u_short); | |
45 | ||
350391c5 | 46 | /* Use of privilege separation or not */ |
47 | extern int use_privsep; | |
30460aeb | 48 | extern Buffer cfg; |
3c0ef626 | 49 | |
50 | /* Initializes the server options to their default values. */ | |
51 | ||
52 | void | |
53 | initialize_server_options(ServerOptions *options) | |
54 | { | |
55 | memset(options, 0, sizeof(*options)); | |
56 | ||
57 | /* Portable-specific options */ | |
7cac2b65 | 58 | options->use_pam = -1; |
3c0ef626 | 59 | |
60 | /* Standard Options */ | |
61 | options->num_ports = 0; | |
62 | options->ports_from_cmdline = 0; | |
63 | options->listen_addrs = NULL; | |
dfddba3d | 64 | options->address_family = -1; |
3c0ef626 | 65 | options->num_host_key_files = 0; |
66 | options->pid_file = NULL; | |
67 | options->server_key_bits = -1; | |
68 | options->login_grace_time = -1; | |
69 | options->key_regeneration_time = -1; | |
70 | options->permit_root_login = PERMIT_NOT_SET; | |
71 | options->ignore_rhosts = -1; | |
72 | options->ignore_user_known_hosts = -1; | |
73 | options->print_motd = -1; | |
74 | options->print_lastlog = -1; | |
75 | options->x11_forwarding = -1; | |
76 | options->x11_display_offset = -1; | |
e9702f7d | 77 | options->x11_use_localhost = -1; |
3c0ef626 | 78 | options->xauth_location = NULL; |
79 | options->strict_modes = -1; | |
540d72c3 | 80 | options->tcp_keep_alive = -1; |
e9702f7d | 81 | options->log_facility = SYSLOG_FACILITY_NOT_SET; |
82 | options->log_level = SYSLOG_LEVEL_NOT_SET; | |
3c0ef626 | 83 | options->rhosts_rsa_authentication = -1; |
84 | options->hostbased_authentication = -1; | |
85 | options->hostbased_uses_name_from_packet_only = -1; | |
86 | options->rsa_authentication = -1; | |
87 | options->pubkey_authentication = -1; | |
3c0ef626 | 88 | options->kerberos_authentication = -1; |
89 | options->kerberos_or_local_passwd = -1; | |
90 | options->kerberos_ticket_cleanup = -1; | |
75be3237 | 91 | #ifdef SESSION_HOOKS |
92 | options->session_hooks_allow = -1; | |
93 | options->session_hooks_startup_cmd = NULL; | |
94 | options->session_hooks_shutdown_cmd = NULL; | |
3c0ef626 | 95 | #endif |
540d72c3 | 96 | options->kerberos_get_afs_token = -1; |
7cac2b65 | 97 | options->gss_authentication=-1; |
fe4ad273 | 98 | options->gss_keyex = -1; |
7cac2b65 | 99 | options->gss_cleanup_creds = -1; |
f713db99 | 100 | options->gss_strict_acceptor = -1; |
826a9049 | 101 | options->gsi_allow_limited_proxy = -1; |
3c0ef626 | 102 | options->password_authentication = -1; |
103 | options->kbd_interactive_authentication = -1; | |
104 | options->challenge_response_authentication = -1; | |
105 | options->permit_empty_passwd = -1; | |
d03f4262 | 106 | options->permit_user_env = -1; |
3c0ef626 | 107 | options->use_login = -1; |
44a053a3 | 108 | options->compression = -1; |
3c0ef626 | 109 | options->allow_tcp_forwarding = -1; |
110 | options->num_allow_users = 0; | |
111 | options->num_deny_users = 0; | |
112 | options->num_allow_groups = 0; | |
113 | options->num_deny_groups = 0; | |
114 | options->ciphers = NULL; | |
115 | options->macs = NULL; | |
116 | options->protocol = SSH_PROTO_UNKNOWN; | |
117 | options->gateway_ports = -1; | |
118 | options->num_subsystems = 0; | |
119 | options->max_startups_begin = -1; | |
120 | options->max_startups_rate = -1; | |
121 | options->max_startups = -1; | |
7e82606e | 122 | options->max_authtries = -1; |
3c0ef626 | 123 | options->banner = NULL; |
7cac2b65 | 124 | options->use_dns = -1; |
3c0ef626 | 125 | options->client_alive_interval = -1; |
126 | options->client_alive_count_max = -1; | |
127 | options->authorized_keys_file = NULL; | |
128 | options->authorized_keys_file2 = NULL; | |
7e82606e | 129 | options->num_accept_env = 0; |
08822d99 | 130 | options->permit_tun = -1; |
30460aeb | 131 | options->num_permitted_opens = -1; |
132 | options->adm_forced_command = NULL; | |
f713db99 | 133 | options->none_enabled = -1; |
134 | options->tcp_rcv_buf_poll = -1; | |
135 | options->hpn_disabled = -1; | |
136 | options->hpn_buffer_size = -1; | |
3c0ef626 | 137 | } |
138 | ||
139 | void | |
140 | fill_default_server_options(ServerOptions *options) | |
141 | { | |
a7213e65 | 142 | |
3c0ef626 | 143 | /* Portable-specific options */ |
7cac2b65 | 144 | if (options->use_pam == -1) |
29d88157 | 145 | options->use_pam = 0; |
3c0ef626 | 146 | |
147 | /* Standard Options */ | |
148 | if (options->protocol == SSH_PROTO_UNKNOWN) | |
149 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; | |
150 | if (options->num_host_key_files == 0) { | |
151 | /* fill default hostkeys for protocols */ | |
152 | if (options->protocol & SSH_PROTO_1) | |
e9702f7d | 153 | options->host_key_files[options->num_host_key_files++] = |
154 | _PATH_HOST_KEY_FILE; | |
155 | if (options->protocol & SSH_PROTO_2) { | |
156 | options->host_key_files[options->num_host_key_files++] = | |
157 | _PATH_HOST_RSA_KEY_FILE; | |
158 | options->host_key_files[options->num_host_key_files++] = | |
159 | _PATH_HOST_DSA_KEY_FILE; | |
160 | } | |
3c0ef626 | 161 | } |
162 | if (options->num_ports == 0) | |
163 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
164 | if (options->listen_addrs == NULL) | |
165 | add_listen_addr(options, NULL, 0); | |
166 | if (options->pid_file == NULL) | |
167 | options->pid_file = _PATH_SSH_DAEMON_PID_FILE; | |
168 | if (options->server_key_bits == -1) | |
169 | options->server_key_bits = 768; | |
170 | if (options->login_grace_time == -1) | |
d03f4262 | 171 | options->login_grace_time = 120; |
3c0ef626 | 172 | if (options->key_regeneration_time == -1) |
173 | options->key_regeneration_time = 3600; | |
174 | if (options->permit_root_login == PERMIT_NOT_SET) | |
175 | options->permit_root_login = PERMIT_YES; | |
176 | if (options->ignore_rhosts == -1) | |
177 | options->ignore_rhosts = 1; | |
178 | if (options->ignore_user_known_hosts == -1) | |
179 | options->ignore_user_known_hosts = 0; | |
180 | if (options->print_motd == -1) | |
181 | options->print_motd = 1; | |
182 | if (options->print_lastlog == -1) | |
183 | options->print_lastlog = 1; | |
184 | if (options->x11_forwarding == -1) | |
185 | options->x11_forwarding = 0; | |
186 | if (options->x11_display_offset == -1) | |
187 | options->x11_display_offset = 10; | |
e9702f7d | 188 | if (options->x11_use_localhost == -1) |
189 | options->x11_use_localhost = 1; | |
3c0ef626 | 190 | if (options->xauth_location == NULL) |
191 | options->xauth_location = _PATH_XAUTH; | |
3c0ef626 | 192 | if (options->strict_modes == -1) |
193 | options->strict_modes = 1; | |
540d72c3 | 194 | if (options->tcp_keep_alive == -1) |
195 | options->tcp_keep_alive = 1; | |
e9702f7d | 196 | if (options->log_facility == SYSLOG_FACILITY_NOT_SET) |
3c0ef626 | 197 | options->log_facility = SYSLOG_FACILITY_AUTH; |
e9702f7d | 198 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
3c0ef626 | 199 | options->log_level = SYSLOG_LEVEL_INFO; |
3c0ef626 | 200 | if (options->rhosts_rsa_authentication == -1) |
201 | options->rhosts_rsa_authentication = 0; | |
202 | if (options->hostbased_authentication == -1) | |
203 | options->hostbased_authentication = 0; | |
204 | if (options->hostbased_uses_name_from_packet_only == -1) | |
205 | options->hostbased_uses_name_from_packet_only = 0; | |
206 | if (options->rsa_authentication == -1) | |
207 | options->rsa_authentication = 1; | |
208 | if (options->pubkey_authentication == -1) | |
209 | options->pubkey_authentication = 1; | |
7cac2b65 | 210 | if (options->kerberos_authentication == -1) |
211 | options->kerberos_authentication = 0; | |
212 | if (options->kerberos_or_local_passwd == -1) | |
213 | options->kerberos_or_local_passwd = 1; | |
214 | if (options->kerberos_ticket_cleanup == -1) | |
215 | options->kerberos_ticket_cleanup = 1; | |
540d72c3 | 216 | if (options->kerberos_get_afs_token == -1) |
217 | options->kerberos_get_afs_token = 0; | |
5598e598 | 218 | if (options->gss_authentication == -1) |
219 | options->gss_authentication = 1; | |
220 | if (options->gss_keyex == -1) | |
7cac2b65 | 221 | options->gss_keyex = 1; |
5598e598 | 222 | if (options->gss_cleanup_creds == -1) |
223 | options->gss_cleanup_creds = 1; | |
f713db99 | 224 | if (options->gss_strict_acceptor == -1) |
225 | options->gss_strict_acceptor = 0; | |
826a9049 | 226 | if (options->gsi_allow_limited_proxy == -1) |
227 | options->gsi_allow_limited_proxy = 0; | |
3c0ef626 | 228 | if (options->password_authentication == -1) |
229 | options->password_authentication = 1; | |
230 | if (options->kbd_interactive_authentication == -1) | |
231 | options->kbd_interactive_authentication = 0; | |
232 | if (options->challenge_response_authentication == -1) | |
233 | options->challenge_response_authentication = 1; | |
234 | if (options->permit_empty_passwd == -1) | |
235 | options->permit_empty_passwd = 0; | |
d03f4262 | 236 | if (options->permit_user_env == -1) |
237 | options->permit_user_env = 0; | |
3c0ef626 | 238 | if (options->use_login == -1) |
239 | options->use_login = 0; | |
44a053a3 | 240 | if (options->compression == -1) |
2ce0bfe4 | 241 | options->compression = COMP_DELAYED; |
3c0ef626 | 242 | if (options->allow_tcp_forwarding == -1) |
243 | options->allow_tcp_forwarding = 1; | |
244 | if (options->gateway_ports == -1) | |
245 | options->gateway_ports = 0; | |
246 | if (options->max_startups == -1) | |
247 | options->max_startups = 10; | |
248 | if (options->max_startups_rate == -1) | |
249 | options->max_startups_rate = 100; /* 100% */ | |
250 | if (options->max_startups_begin == -1) | |
251 | options->max_startups_begin = options->max_startups; | |
7e82606e | 252 | if (options->max_authtries == -1) |
253 | options->max_authtries = DEFAULT_AUTH_FAIL_MAX; | |
7cac2b65 | 254 | if (options->use_dns == -1) |
255 | options->use_dns = 1; | |
3c0ef626 | 256 | if (options->client_alive_interval == -1) |
e9702f7d | 257 | options->client_alive_interval = 0; |
3c0ef626 | 258 | if (options->client_alive_count_max == -1) |
259 | options->client_alive_count_max = 3; | |
260 | if (options->authorized_keys_file2 == NULL) { | |
261 | /* authorized_keys_file2 falls back to authorized_keys_file */ | |
262 | if (options->authorized_keys_file != NULL) | |
263 | options->authorized_keys_file2 = options->authorized_keys_file; | |
264 | else | |
265 | options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2; | |
266 | } | |
267 | if (options->authorized_keys_file == NULL) | |
268 | options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS; | |
08822d99 | 269 | if (options->permit_tun == -1) |
270 | options->permit_tun = SSH_TUNMODE_NO; | |
350391c5 | 271 | |
a7213e65 | 272 | if (options->hpn_disabled == -1) |
273 | options->hpn_disabled = 0; | |
274 | ||
275 | if (options->hpn_buffer_size == -1) | |
276 | options->hpn_buffer_size = 2*1024*1024; | |
277 | else { | |
278 | if (options->hpn_buffer_size == 0) | |
279 | options->hpn_buffer_size = 1; | |
280 | /* limit the maximum buffer to 7MB */ | |
281 | if (options->hpn_buffer_size > 7168) | |
282 | options->hpn_buffer_size = 7168; | |
283 | options->hpn_buffer_size *=1024; | |
284 | } | |
285 | ||
44a053a3 | 286 | /* Turn privilege separation on by default */ |
350391c5 | 287 | if (use_privsep == -1) |
44a053a3 | 288 | use_privsep = 1; |
289 | ||
a7213e65 | 290 | |
291 | ||
d03f4262 | 292 | #ifndef HAVE_MMAP |
44a053a3 | 293 | if (use_privsep && options->compression == 1) { |
294 | error("This platform does not support both privilege " | |
295 | "separation and compression"); | |
296 | error("Compression disabled"); | |
297 | options->compression = 0; | |
298 | } | |
299 | #endif | |
300 | ||
3c0ef626 | 301 | } |
302 | ||
303 | /* Keyword tokens. */ | |
304 | typedef enum { | |
305 | sBadOption, /* == unknown option */ | |
306 | /* Portable-specific options */ | |
7cac2b65 | 307 | sUsePAM, |
3c0ef626 | 308 | /* Standard Options */ |
309 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, | |
310 | sPermitRootLogin, sLogFacility, sLogLevel, | |
7cac2b65 | 311 | sRhostsRSAAuthentication, sRSAAuthentication, |
3c0ef626 | 312 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
540d72c3 | 313 | sKerberosGetAFSToken, |
7cac2b65 | 314 | sKerberosTgtPassing, sChallengeResponseAuthentication, |
75be3237 | 315 | #ifdef SESSION_HOOKS |
316 | sAllowSessionHooks, sSessionHookStartupCmd, sSessionHookShutdownCmd, | |
3c0ef626 | 317 | #endif |
dfddba3d | 318 | sPasswordAuthentication, sKbdInteractiveAuthentication, |
319 | sListenAddress, sAddressFamily, | |
3c0ef626 | 320 | sPrintMotd, sPrintLastLog, sIgnoreRhosts, |
e9702f7d | 321 | sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost, |
540d72c3 | 322 | sStrictModes, sEmptyPasswd, sTCPKeepAlive, |
d03f4262 | 323 | sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression, |
3c0ef626 | 324 | sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
325 | sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile, | |
7e82606e | 326 | sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, |
327 | sMaxStartups, sMaxAuthTries, | |
7cac2b65 | 328 | sBanner, sUseDNS, sHostbasedAuthentication, |
e9702f7d | 329 | sHostbasedUsesNameFromPacketOnly, sClientAliveInterval, |
3c0ef626 | 330 | sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2, |
f713db99 | 331 | sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor, |
a7213e65 | 332 | sGssKeyEx, |
826a9049 | 333 | sGsiAllowLimitedProxy, |
f713db99 | 334 | sAcceptEnv, sPermitTunnel, |
30460aeb | 335 | sMatch, sPermitOpen, sForceCommand, |
336 | sUsePrivilegeSeparation, | |
337 | sNoneEnabled, sTcpRcvBufPoll, | |
a7213e65 | 338 | sHPNDisabled, sHPNBufferSize, |
7cac2b65 | 339 | sDeprecated, sUnsupported |
3c0ef626 | 340 | } ServerOpCodes; |
341 | ||
30460aeb | 342 | #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */ |
343 | #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */ | |
344 | #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH) | |
345 | ||
3c0ef626 | 346 | /* Textual representation of the tokens. */ |
347 | static struct { | |
348 | const char *name; | |
349 | ServerOpCodes opcode; | |
30460aeb | 350 | u_int flags; |
3c0ef626 | 351 | } keywords[] = { |
352 | /* Portable-specific options */ | |
7cac2b65 | 353 | #ifdef USE_PAM |
30460aeb | 354 | { "usepam", sUsePAM, SSHCFG_GLOBAL }, |
7cac2b65 | 355 | #else |
30460aeb | 356 | { "usepam", sUnsupported, SSHCFG_GLOBAL }, |
7cac2b65 | 357 | #endif |
30460aeb | 358 | { "pamauthenticationviakbdint", sDeprecated, SSHCFG_GLOBAL }, |
3c0ef626 | 359 | /* Standard Options */ |
30460aeb | 360 | { "port", sPort, SSHCFG_GLOBAL }, |
361 | { "hostkey", sHostKeyFile, SSHCFG_GLOBAL }, | |
362 | { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */ | |
363 | { "pidfile", sPidFile, SSHCFG_GLOBAL }, | |
364 | { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL }, | |
365 | { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL }, | |
366 | { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL }, | |
367 | { "permitrootlogin", sPermitRootLogin, SSHCFG_GLOBAL }, | |
368 | { "syslogfacility", sLogFacility, SSHCFG_GLOBAL }, | |
369 | { "loglevel", sLogLevel, SSHCFG_GLOBAL }, | |
370 | { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL }, | |
371 | { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_GLOBAL }, | |
372 | { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_GLOBAL }, | |
373 | { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_GLOBAL }, | |
374 | { "rsaauthentication", sRSAAuthentication, SSHCFG_GLOBAL }, | |
375 | { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, | |
376 | { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */ | |
7cac2b65 | 377 | #ifdef KRB5 |
30460aeb | 378 | { "kerberosauthentication", sKerberosAuthentication, SSHCFG_GLOBAL }, |
379 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL }, | |
380 | { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL }, | |
540d72c3 | 381 | #ifdef USE_AFS |
30460aeb | 382 | { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL }, |
540d72c3 | 383 | #else |
30460aeb | 384 | { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL }, |
540d72c3 | 385 | #endif |
7cac2b65 | 386 | #else |
30460aeb | 387 | { "kerberosauthentication", sUnsupported, SSHCFG_GLOBAL }, |
388 | { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL }, | |
389 | { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL }, | |
390 | { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL }, | |
7cac2b65 | 391 | #endif |
30460aeb | 392 | { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL }, |
393 | { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL }, | |
5598e598 | 394 | #ifdef GSSAPI |
30460aeb | 395 | { "gssapiauthentication", sGssAuthentication, SSHCFG_GLOBAL }, |
30460aeb | 396 | { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL }, |
f713db99 | 397 | { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL }, |
398 | { "gssapikeyexchange", sGssKeyEx, SSHCFG_GLOBAL }, | |
826a9049 | 399 | #ifdef GSI |
30460aeb | 400 | { "gsiallowlimitedproxy", sGsiAllowLimitedProxy, SSHCFG_GLOBAL }, |
826a9049 | 401 | #endif |
7cac2b65 | 402 | #else |
30460aeb | 403 | { "gssapiauthentication", sUnsupported, SSHCFG_GLOBAL }, |
30460aeb | 404 | { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL }, |
f713db99 | 405 | { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL }, |
406 | { "gssapikeyexchange", sUnsupported, SSHCFG_GLOBAL }, | |
407 | #ifdef GSI | |
408 | { "gsiallowlimitedproxy", sUnsupported, SSHCFG_GLOBAL }, | |
409 | #endif | |
3c0ef626 | 410 | #endif |
75be3237 | 411 | #ifdef SESSION_HOOKS |
30460aeb | 412 | { "allowsessionhooks", sAllowSessionHooks, SSHCFG_GLOBAL }, |
413 | { "sessionhookstartupcmd", sSessionHookStartupCmd, SSHCFG_GLOBAL }, | |
414 | { "sessionhookshutdowncmd", sSessionHookShutdownCmd, SSHCFG_GLOBAL }, | |
75be3237 | 415 | #endif |
30460aeb | 416 | { "passwordauthentication", sPasswordAuthentication, SSHCFG_GLOBAL }, |
417 | { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_GLOBAL }, | |
418 | { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, | |
419 | { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */ | |
420 | { "checkmail", sDeprecated, SSHCFG_GLOBAL }, | |
421 | { "listenaddress", sListenAddress, SSHCFG_GLOBAL }, | |
422 | { "addressfamily", sAddressFamily, SSHCFG_GLOBAL }, | |
423 | { "printmotd", sPrintMotd, SSHCFG_GLOBAL }, | |
424 | { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL }, | |
425 | { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL }, | |
426 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL }, | |
427 | { "x11forwarding", sX11Forwarding, SSHCFG_ALL }, | |
428 | { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL }, | |
429 | { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL }, | |
430 | { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL }, | |
431 | { "strictmodes", sStrictModes, SSHCFG_GLOBAL }, | |
432 | { "permitemptypasswords", sEmptyPasswd, SSHCFG_GLOBAL }, | |
433 | { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL }, | |
434 | { "uselogin", sUseLogin, SSHCFG_GLOBAL }, | |
435 | { "compression", sCompression, SSHCFG_GLOBAL }, | |
436 | { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, | |
437 | { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */ | |
438 | { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL }, | |
439 | { "allowusers", sAllowUsers, SSHCFG_GLOBAL }, | |
440 | { "denyusers", sDenyUsers, SSHCFG_GLOBAL }, | |
441 | { "allowgroups", sAllowGroups, SSHCFG_GLOBAL }, | |
442 | { "denygroups", sDenyGroups, SSHCFG_GLOBAL }, | |
443 | { "ciphers", sCiphers, SSHCFG_GLOBAL }, | |
444 | { "macs", sMacs, SSHCFG_GLOBAL }, | |
445 | { "protocol", sProtocol, SSHCFG_GLOBAL }, | |
446 | { "gatewayports", sGatewayPorts, SSHCFG_ALL }, | |
447 | { "subsystem", sSubsystem, SSHCFG_GLOBAL }, | |
448 | { "maxstartups", sMaxStartups, SSHCFG_GLOBAL }, | |
449 | { "maxauthtries", sMaxAuthTries, SSHCFG_GLOBAL }, | |
450 | { "banner", sBanner, SSHCFG_GLOBAL }, | |
451 | { "usedns", sUseDNS, SSHCFG_GLOBAL }, | |
452 | { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL }, | |
453 | { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL }, | |
454 | { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL }, | |
455 | { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL }, | |
456 | { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_GLOBAL }, | |
457 | { "authorizedkeysfile2", sAuthorizedKeysFile2, SSHCFG_GLOBAL }, | |
458 | { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL }, | |
459 | { "acceptenv", sAcceptEnv, SSHCFG_GLOBAL }, | |
460 | { "permittunnel", sPermitTunnel, SSHCFG_GLOBAL }, | |
461 | { "match", sMatch, SSHCFG_ALL }, | |
462 | { "permitopen", sPermitOpen, SSHCFG_ALL }, | |
463 | { "forcecommand", sForceCommand, SSHCFG_ALL }, | |
f713db99 | 464 | { "noneenabled", sNoneEnabled }, |
465 | { "hpndisabled", sHPNDisabled }, | |
466 | { "hpnbuffersize", sHPNBufferSize }, | |
467 | { "tcprcvbufpoll", sTcpRcvBufPoll }, | |
30460aeb | 468 | { NULL, sBadOption, 0 } |
3c0ef626 | 469 | }; |
470 | ||
471 | /* | |
472 | * Returns the number of the token pointed to by cp or sBadOption. | |
473 | */ | |
474 | ||
475 | static ServerOpCodes | |
476 | parse_token(const char *cp, const char *filename, | |
30460aeb | 477 | int linenum, u_int *flags) |
3c0ef626 | 478 | { |
479 | u_int i; | |
480 | ||
481 | for (i = 0; keywords[i].name; i++) | |
30460aeb | 482 | if (strcasecmp(cp, keywords[i].name) == 0) { |
483 | *flags = keywords[i].flags; | |
484 | return keywords[i].opcode; | |
485 | } | |
486 | ||
3c0ef626 | 487 | error("%s: line %d: Bad configuration option: %s", |
488 | filename, linenum, cp); | |
489 | return sBadOption; | |
490 | } | |
491 | ||
492 | static void | |
493 | add_listen_addr(ServerOptions *options, char *addr, u_short port) | |
494 | { | |
2ce0bfe4 | 495 | u_int i; |
3c0ef626 | 496 | |
497 | if (options->num_ports == 0) | |
498 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; | |
dfddba3d | 499 | if (options->address_family == -1) |
500 | options->address_family = AF_UNSPEC; | |
3c0ef626 | 501 | if (port == 0) |
502 | for (i = 0; i < options->num_ports; i++) | |
503 | add_one_listen_addr(options, addr, options->ports[i]); | |
504 | else | |
505 | add_one_listen_addr(options, addr, port); | |
506 | } | |
507 | ||
508 | static void | |
509 | add_one_listen_addr(ServerOptions *options, char *addr, u_short port) | |
510 | { | |
511 | struct addrinfo hints, *ai, *aitop; | |
512 | char strport[NI_MAXSERV]; | |
513 | int gaierr; | |
514 | ||
515 | memset(&hints, 0, sizeof(hints)); | |
dfddba3d | 516 | hints.ai_family = options->address_family; |
3c0ef626 | 517 | hints.ai_socktype = SOCK_STREAM; |
518 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; | |
276b07a3 | 519 | snprintf(strport, sizeof strport, "%u", port); |
3c0ef626 | 520 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
521 | fatal("bad addr or host: %s (%s)", | |
522 | addr ? addr : "<NULL>", | |
523 | gai_strerror(gaierr)); | |
524 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) | |
525 | ; | |
526 | ai->ai_next = options->listen_addrs; | |
527 | options->listen_addrs = aitop; | |
528 | } | |
529 | ||
30460aeb | 530 | /* |
531 | * The strategy for the Match blocks is that the config file is parsed twice. | |
532 | * | |
533 | * The first time is at startup. activep is initialized to 1 and the | |
534 | * directives in the global context are processed and acted on. Hitting a | |
535 | * Match directive unsets activep and the directives inside the block are | |
536 | * checked for syntax only. | |
537 | * | |
538 | * The second time is after a connection has been established but before | |
539 | * authentication. activep is initialized to 2 and global config directives | |
540 | * are ignored since they have already been processed. If the criteria in a | |
541 | * Match block is met, activep is set and the subsequent directives | |
542 | * processed and actioned until EOF or another Match block unsets it. Any | |
543 | * options set are copied into the main server config. | |
544 | * | |
545 | * Potential additions/improvements: | |
546 | * - Add Match support for pre-kex directives, eg Protocol, Ciphers. | |
547 | * | |
548 | * - Add a Tag directive (idea from David Leonard) ala pf, eg: | |
549 | * Match Address 192.168.0.* | |
550 | * Tag trusted | |
551 | * Match Group wheel | |
552 | * Tag trusted | |
553 | * Match Tag trusted | |
554 | * AllowTcpForwarding yes | |
555 | * GatewayPorts clientspecified | |
556 | * [...] | |
557 | * | |
558 | * - Add a PermittedChannelRequests directive | |
559 | * Match Group shell | |
560 | * PermittedChannelRequests session,forwarded-tcpip | |
561 | */ | |
562 | ||
563 | static int | |
564 | match_cfg_line_group(const char *grps, int line, const char *user) | |
565 | { | |
566 | int result = 0; | |
567 | u_int ngrps = 0; | |
568 | char *arg, *p, *cp, *grplist[MAX_MATCH_GROUPS]; | |
569 | struct passwd *pw; | |
570 | ||
571 | /* | |
572 | * Even if we do not have a user yet, we still need to check for | |
573 | * valid syntax. | |
574 | */ | |
575 | arg = cp = xstrdup(grps); | |
576 | while ((p = strsep(&cp, ",")) != NULL && *p != '\0') { | |
577 | if (ngrps >= MAX_MATCH_GROUPS) { | |
578 | error("line %d: too many groups in Match Group", line); | |
579 | result = -1; | |
580 | goto out; | |
581 | } | |
582 | grplist[ngrps++] = p; | |
583 | } | |
584 | ||
585 | if (user == NULL) | |
586 | goto out; | |
587 | ||
588 | if ((pw = getpwnam(user)) == NULL) { | |
589 | debug("Can't match group at line %d because user %.100s does " | |
590 | "not exist", line, user); | |
591 | } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) { | |
592 | debug("Can't Match group because user %.100s not in any group " | |
593 | "at line %d", user, line); | |
594 | } else if (ga_match(grplist, ngrps) != 1) { | |
595 | debug("user %.100s does not match group %.100s at line %d", | |
596 | user, arg, line); | |
597 | } else { | |
598 | debug("user %.100s matched group %.100s at line %d", user, | |
599 | arg, line); | |
600 | result = 1; | |
601 | } | |
602 | out: | |
603 | ga_free(); | |
604 | xfree(arg); | |
605 | return result; | |
606 | } | |
607 | ||
608 | static int | |
609 | match_cfg_line(char **condition, int line, const char *user, const char *host, | |
610 | const char *address) | |
611 | { | |
612 | int result = 1; | |
613 | char *arg, *attrib, *cp = *condition; | |
614 | size_t len; | |
615 | ||
616 | if (user == NULL) | |
617 | debug3("checking syntax for 'Match %s'", cp); | |
618 | else | |
619 | debug3("checking match for '%s' user %s host %s addr %s", cp, | |
620 | user ? user : "(null)", host ? host : "(null)", | |
621 | address ? address : "(null)"); | |
622 | ||
623 | while ((attrib = strdelim(&cp)) && *attrib != '\0') { | |
624 | if ((arg = strdelim(&cp)) == NULL || *arg == '\0') { | |
625 | error("Missing Match criteria for %s", attrib); | |
626 | return -1; | |
627 | } | |
628 | len = strlen(arg); | |
629 | if (strcasecmp(attrib, "user") == 0) { | |
630 | if (!user) { | |
631 | result = 0; | |
632 | continue; | |
633 | } | |
634 | if (match_pattern_list(user, arg, len, 0) != 1) | |
635 | result = 0; | |
636 | else | |
637 | debug("user %.100s matched 'User %.100s' at " | |
638 | "line %d", user, arg, line); | |
639 | } else if (strcasecmp(attrib, "group") == 0) { | |
640 | switch (match_cfg_line_group(arg, line, user)) { | |
641 | case -1: | |
642 | return -1; | |
643 | case 0: | |
644 | result = 0; | |
645 | } | |
646 | } else if (strcasecmp(attrib, "host") == 0) { | |
647 | if (!host) { | |
648 | result = 0; | |
649 | continue; | |
650 | } | |
651 | if (match_hostname(host, arg, len) != 1) | |
652 | result = 0; | |
653 | else | |
654 | debug("connection from %.100s matched 'Host " | |
655 | "%.100s' at line %d", host, arg, line); | |
656 | } else if (strcasecmp(attrib, "address") == 0) { | |
657 | debug("address '%s' arg '%s'", address, arg); | |
658 | if (!address) { | |
659 | result = 0; | |
660 | continue; | |
661 | } | |
662 | if (match_hostname(address, arg, len) != 1) | |
663 | result = 0; | |
664 | else | |
665 | debug("connection from %.100s matched 'Address " | |
666 | "%.100s' at line %d", address, arg, line); | |
667 | } else { | |
668 | error("Unsupported Match attribute %s", attrib); | |
669 | return -1; | |
670 | } | |
671 | } | |
672 | if (user != NULL) | |
673 | debug3("match %sfound", result ? "" : "not "); | |
674 | *condition = cp; | |
675 | return result; | |
676 | } | |
677 | ||
678 | #define WHITESPACE " \t\r\n" | |
679 | ||
e9702f7d | 680 | int |
681 | process_server_config_line(ServerOptions *options, char *line, | |
30460aeb | 682 | const char *filename, int linenum, int *activep, const char *user, |
683 | const char *host, const char *address) | |
3c0ef626 | 684 | { |
3c0ef626 | 685 | char *cp, **charptr, *arg, *p; |
30460aeb | 686 | int cmdline = 0, *intptr, value, n; |
3c0ef626 | 687 | ServerOpCodes opcode; |
dfddba3d | 688 | u_short port; |
30460aeb | 689 | u_int i, flags = 0; |
690 | size_t len; | |
3c0ef626 | 691 | |
e9702f7d | 692 | cp = line; |
30460aeb | 693 | if ((arg = strdelim(&cp)) == NULL) |
694 | return 0; | |
e9702f7d | 695 | /* Ignore leading whitespace */ |
696 | if (*arg == '\0') | |
3c0ef626 | 697 | arg = strdelim(&cp); |
e9702f7d | 698 | if (!arg || !*arg || *arg == '#') |
699 | return 0; | |
700 | intptr = NULL; | |
701 | charptr = NULL; | |
30460aeb | 702 | opcode = parse_token(arg, filename, linenum, &flags); |
703 | ||
704 | if (activep == NULL) { /* We are processing a command line directive */ | |
705 | cmdline = 1; | |
706 | activep = &cmdline; | |
707 | } | |
708 | if (*activep && opcode != sMatch) | |
709 | debug3("%s:%d setting %s %s", filename, linenum, arg, cp); | |
710 | if (*activep == 0 && !(flags & SSHCFG_MATCH)) { | |
711 | if (user == NULL) { | |
712 | fatal("%s line %d: Directive '%s' is not allowed " | |
713 | "within a Match block", filename, linenum, arg); | |
714 | } else { /* this is a directive we have already processed */ | |
715 | while (arg) | |
716 | arg = strdelim(&cp); | |
717 | return 0; | |
718 | } | |
719 | } | |
a7213e65 | 720 | |
e9702f7d | 721 | switch (opcode) { |
722 | /* Portable-specific options */ | |
7cac2b65 | 723 | case sUsePAM: |
724 | intptr = &options->use_pam; | |
e9702f7d | 725 | goto parse_flag; |
3c0ef626 | 726 | |
e9702f7d | 727 | /* Standard Options */ |
728 | case sBadOption: | |
729 | return -1; | |
730 | case sPort: | |
731 | /* ignore ports from configfile if cmdline specifies ports */ | |
732 | if (options->ports_from_cmdline) | |
733 | return 0; | |
734 | if (options->listen_addrs != NULL) | |
735 | fatal("%s line %d: ports must be specified before " | |
736 | "ListenAddress.", filename, linenum); | |
737 | if (options->num_ports >= MAX_PORTS) | |
738 | fatal("%s line %d: too many ports.", | |
739 | filename, linenum); | |
740 | arg = strdelim(&cp); | |
741 | if (!arg || *arg == '\0') | |
742 | fatal("%s line %d: missing port number.", | |
743 | filename, linenum); | |
744 | options->ports[options->num_ports++] = a2port(arg); | |
745 | if (options->ports[options->num_ports-1] == 0) | |
746 | fatal("%s line %d: Badly formatted port number.", | |
747 | filename, linenum); | |
748 | break; | |
749 | ||
750 | case sServerKeyBits: | |
751 | intptr = &options->server_key_bits; | |
3c0ef626 | 752 | parse_int: |
e9702f7d | 753 | arg = strdelim(&cp); |
754 | if (!arg || *arg == '\0') | |
755 | fatal("%s line %d: missing integer value.", | |
756 | filename, linenum); | |
757 | value = atoi(arg); | |
30460aeb | 758 | if (*activep && *intptr == -1) |
e9702f7d | 759 | *intptr = value; |
760 | break; | |
761 | ||
762 | case sLoginGraceTime: | |
763 | intptr = &options->login_grace_time; | |
3c0ef626 | 764 | parse_time: |
e9702f7d | 765 | arg = strdelim(&cp); |
766 | if (!arg || *arg == '\0') | |
767 | fatal("%s line %d: missing time value.", | |
768 | filename, linenum); | |
769 | if ((value = convtime(arg)) == -1) | |
770 | fatal("%s line %d: invalid time value.", | |
771 | filename, linenum); | |
772 | if (*intptr == -1) | |
773 | *intptr = value; | |
774 | break; | |
775 | ||
776 | case sKeyRegenerationTime: | |
777 | intptr = &options->key_regeneration_time; | |
778 | goto parse_time; | |
779 | ||
780 | case sListenAddress: | |
781 | arg = strdelim(&cp); | |
dfddba3d | 782 | if (arg == NULL || *arg == '\0') |
783 | fatal("%s line %d: missing address", | |
e9702f7d | 784 | filename, linenum); |
2ce0bfe4 | 785 | /* check for bare IPv6 address: no "[]" and 2 or more ":" */ |
786 | if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL | |
787 | && strchr(p+1, ':') != NULL) { | |
788 | add_listen_addr(options, arg, 0); | |
789 | break; | |
790 | } | |
dfddba3d | 791 | p = hpdelim(&arg); |
792 | if (p == NULL) | |
793 | fatal("%s line %d: bad address:port usage", | |
e9702f7d | 794 | filename, linenum); |
dfddba3d | 795 | p = cleanhostname(p); |
796 | if (arg == NULL) | |
797 | port = 0; | |
798 | else if ((port = a2port(arg)) == 0) | |
799 | fatal("%s line %d: bad port number", filename, linenum); | |
800 | ||
801 | add_listen_addr(options, p, port); | |
802 | ||
803 | break; | |
804 | ||
805 | case sAddressFamily: | |
806 | arg = strdelim(&cp); | |
2ce0bfe4 | 807 | if (!arg || *arg == '\0') |
808 | fatal("%s line %d: missing address family.", | |
809 | filename, linenum); | |
dfddba3d | 810 | intptr = &options->address_family; |
811 | if (options->listen_addrs != NULL) | |
812 | fatal("%s line %d: address family must be specified before " | |
813 | "ListenAddress.", filename, linenum); | |
814 | if (strcasecmp(arg, "inet") == 0) | |
815 | value = AF_INET; | |
816 | else if (strcasecmp(arg, "inet6") == 0) | |
817 | value = AF_INET6; | |
818 | else if (strcasecmp(arg, "any") == 0) | |
819 | value = AF_UNSPEC; | |
820 | else | |
821 | fatal("%s line %d: unsupported address family \"%s\".", | |
822 | filename, linenum, arg); | |
823 | if (*intptr == -1) | |
824 | *intptr = value; | |
e9702f7d | 825 | break; |
826 | ||
827 | case sHostKeyFile: | |
828 | intptr = &options->num_host_key_files; | |
829 | if (*intptr >= MAX_HOSTKEYS) | |
830 | fatal("%s line %d: too many host keys specified (max %d).", | |
831 | filename, linenum, MAX_HOSTKEYS); | |
832 | charptr = &options->host_key_files[*intptr]; | |
3c0ef626 | 833 | parse_filename: |
e9702f7d | 834 | arg = strdelim(&cp); |
835 | if (!arg || *arg == '\0') | |
836 | fatal("%s line %d: missing file name.", | |
837 | filename, linenum); | |
30460aeb | 838 | if (*activep && *charptr == NULL) { |
e9702f7d | 839 | *charptr = tilde_expand_filename(arg, getuid()); |
840 | /* increase optional counter */ | |
841 | if (intptr != NULL) | |
842 | *intptr = *intptr + 1; | |
843 | } | |
844 | break; | |
3c0ef626 | 845 | |
e9702f7d | 846 | case sPidFile: |
847 | charptr = &options->pid_file; | |
848 | goto parse_filename; | |
3c0ef626 | 849 | |
e9702f7d | 850 | case sPermitRootLogin: |
851 | intptr = &options->permit_root_login; | |
852 | arg = strdelim(&cp); | |
853 | if (!arg || *arg == '\0') | |
854 | fatal("%s line %d: missing yes/" | |
855 | "without-password/forced-commands-only/no " | |
856 | "argument.", filename, linenum); | |
857 | value = 0; /* silence compiler */ | |
858 | if (strcmp(arg, "without-password") == 0) | |
859 | value = PERMIT_NO_PASSWD; | |
860 | else if (strcmp(arg, "forced-commands-only") == 0) | |
861 | value = PERMIT_FORCED_ONLY; | |
862 | else if (strcmp(arg, "yes") == 0) | |
863 | value = PERMIT_YES; | |
864 | else if (strcmp(arg, "no") == 0) | |
865 | value = PERMIT_NO; | |
866 | else | |
867 | fatal("%s line %d: Bad yes/" | |
868 | "without-password/forced-commands-only/no " | |
869 | "argument: %s", filename, linenum, arg); | |
870 | if (*intptr == -1) | |
871 | *intptr = value; | |
872 | break; | |
3c0ef626 | 873 | |
e9702f7d | 874 | case sIgnoreRhosts: |
875 | intptr = &options->ignore_rhosts; | |
876 | parse_flag: | |
877 | arg = strdelim(&cp); | |
878 | if (!arg || *arg == '\0') | |
879 | fatal("%s line %d: missing yes/no argument.", | |
880 | filename, linenum); | |
881 | value = 0; /* silence compiler */ | |
882 | if (strcmp(arg, "yes") == 0) | |
883 | value = 1; | |
884 | else if (strcmp(arg, "no") == 0) | |
885 | value = 0; | |
886 | else | |
887 | fatal("%s line %d: Bad yes/no argument: %s", | |
888 | filename, linenum, arg); | |
30460aeb | 889 | if (*activep && *intptr == -1) |
e9702f7d | 890 | *intptr = value; |
891 | break; | |
892 | ||
a7213e65 | 893 | case sNoneEnabled: |
894 | intptr = &options->none_enabled; | |
895 | goto parse_flag; | |
896 | ||
897 | case sTcpRcvBufPoll: | |
898 | intptr = &options->tcp_rcv_buf_poll; | |
899 | goto parse_flag; | |
900 | ||
901 | case sHPNDisabled: | |
902 | intptr = &options->hpn_disabled; | |
903 | goto parse_flag; | |
904 | ||
905 | case sHPNBufferSize: | |
906 | intptr = &options->hpn_buffer_size; | |
907 | goto parse_int; | |
908 | ||
e9702f7d | 909 | case sIgnoreUserKnownHosts: |
910 | intptr = &options->ignore_user_known_hosts; | |
911 | goto parse_flag; | |
912 | ||
e9702f7d | 913 | case sRhostsRSAAuthentication: |
914 | intptr = &options->rhosts_rsa_authentication; | |
915 | goto parse_flag; | |
916 | ||
917 | case sHostbasedAuthentication: | |
918 | intptr = &options->hostbased_authentication; | |
919 | goto parse_flag; | |
920 | ||
921 | case sHostbasedUsesNameFromPacketOnly: | |
922 | intptr = &options->hostbased_uses_name_from_packet_only; | |
923 | goto parse_flag; | |
924 | ||
925 | case sRSAAuthentication: | |
926 | intptr = &options->rsa_authentication; | |
927 | goto parse_flag; | |
928 | ||
929 | case sPubkeyAuthentication: | |
930 | intptr = &options->pubkey_authentication; | |
931 | goto parse_flag; | |
7cac2b65 | 932 | |
e9702f7d | 933 | case sKerberosAuthentication: |
934 | intptr = &options->kerberos_authentication; | |
935 | goto parse_flag; | |
3c0ef626 | 936 | |
e9702f7d | 937 | case sKerberosOrLocalPasswd: |
938 | intptr = &options->kerberos_or_local_passwd; | |
939 | goto parse_flag; | |
3c0ef626 | 940 | |
e9702f7d | 941 | case sKerberosTicketCleanup: |
942 | intptr = &options->kerberos_ticket_cleanup; | |
943 | goto parse_flag; | |
7cac2b65 | 944 | |
540d72c3 | 945 | case sKerberosGetAFSToken: |
946 | intptr = &options->kerberos_get_afs_token; | |
947 | goto parse_flag; | |
948 | ||
7cac2b65 | 949 | case sGssAuthentication: |
950 | intptr = &options->gss_authentication; | |
e9702f7d | 951 | goto parse_flag; |
7cac2b65 | 952 | |
953 | case sGssKeyEx: | |
954 | intptr = &options->gss_keyex; | |
e9702f7d | 955 | goto parse_flag; |
7cac2b65 | 956 | |
7cac2b65 | 957 | case sGssCleanupCreds: |
958 | intptr = &options->gss_cleanup_creds; | |
959 | goto parse_flag; | |
960 | ||
f713db99 | 961 | case sGssStrictAcceptor: |
962 | intptr = &options->gss_strict_acceptor; | |
963 | ||
826a9049 | 964 | case sGsiAllowLimitedProxy: |
965 | intptr = &options->gsi_allow_limited_proxy; | |
966 | goto parse_flag; | |
967 | ||
75be3237 | 968 | #ifdef SESSION_HOOKS |
969 | case sAllowSessionHooks: | |
970 | intptr = &options->session_hooks_allow; | |
971 | goto parse_flag; | |
972 | case sSessionHookStartupCmd: | |
973 | case sSessionHookShutdownCmd: | |
974 | arg = strdelim(&cp); | |
975 | if (!arg || *arg == '\0') | |
976 | fatal("%s line %d: empty session hook command", | |
977 | filename, linenum); | |
978 | if (opcode==sSessionHookStartupCmd) | |
979 | options->session_hooks_startup_cmd = strdup(arg); | |
980 | else | |
981 | options->session_hooks_shutdown_cmd = strdup(arg); | |
982 | break; | |
983 | #endif | |
7cac2b65 | 984 | |
e9702f7d | 985 | case sPasswordAuthentication: |
986 | intptr = &options->password_authentication; | |
987 | goto parse_flag; | |
3c0ef626 | 988 | |
e9702f7d | 989 | case sKbdInteractiveAuthentication: |
990 | intptr = &options->kbd_interactive_authentication; | |
991 | goto parse_flag; | |
3c0ef626 | 992 | |
e9702f7d | 993 | case sChallengeResponseAuthentication: |
994 | intptr = &options->challenge_response_authentication; | |
995 | goto parse_flag; | |
3c0ef626 | 996 | |
e9702f7d | 997 | case sPrintMotd: |
998 | intptr = &options->print_motd; | |
999 | goto parse_flag; | |
3c0ef626 | 1000 | |
e9702f7d | 1001 | case sPrintLastLog: |
1002 | intptr = &options->print_lastlog; | |
1003 | goto parse_flag; | |
3c0ef626 | 1004 | |
e9702f7d | 1005 | case sX11Forwarding: |
1006 | intptr = &options->x11_forwarding; | |
1007 | goto parse_flag; | |
3c0ef626 | 1008 | |
e9702f7d | 1009 | case sX11DisplayOffset: |
1010 | intptr = &options->x11_display_offset; | |
1011 | goto parse_int; | |
3c0ef626 | 1012 | |
e9702f7d | 1013 | case sX11UseLocalhost: |
1014 | intptr = &options->x11_use_localhost; | |
1015 | goto parse_flag; | |
3c0ef626 | 1016 | |
e9702f7d | 1017 | case sXAuthLocation: |
1018 | charptr = &options->xauth_location; | |
1019 | goto parse_filename; | |
3c0ef626 | 1020 | |
e9702f7d | 1021 | case sStrictModes: |
1022 | intptr = &options->strict_modes; | |
1023 | goto parse_flag; | |
3c0ef626 | 1024 | |
540d72c3 | 1025 | case sTCPKeepAlive: |
1026 | intptr = &options->tcp_keep_alive; | |
e9702f7d | 1027 | goto parse_flag; |
3c0ef626 | 1028 | |
e9702f7d | 1029 | case sEmptyPasswd: |
1030 | intptr = &options->permit_empty_passwd; | |
1031 | goto parse_flag; | |
1032 | ||
d03f4262 | 1033 | case sPermitUserEnvironment: |
1034 | intptr = &options->permit_user_env; | |
1035 | goto parse_flag; | |
1036 | ||
e9702f7d | 1037 | case sUseLogin: |
1038 | intptr = &options->use_login; | |
1039 | goto parse_flag; | |
1040 | ||
44a053a3 | 1041 | case sCompression: |
1042 | intptr = &options->compression; | |
2ce0bfe4 | 1043 | arg = strdelim(&cp); |
1044 | if (!arg || *arg == '\0') | |
1045 | fatal("%s line %d: missing yes/no/delayed " | |
1046 | "argument.", filename, linenum); | |
1047 | value = 0; /* silence compiler */ | |
1048 | if (strcmp(arg, "delayed") == 0) | |
1049 | value = COMP_DELAYED; | |
1050 | else if (strcmp(arg, "yes") == 0) | |
1051 | value = COMP_ZLIB; | |
1052 | else if (strcmp(arg, "no") == 0) | |
1053 | value = COMP_NONE; | |
1054 | else | |
1055 | fatal("%s line %d: Bad yes/no/delayed " | |
1056 | "argument: %s", filename, linenum, arg); | |
1057 | if (*intptr == -1) | |
1058 | *intptr = value; | |
1059 | break; | |
44a053a3 | 1060 | |
e9702f7d | 1061 | case sGatewayPorts: |
1062 | intptr = &options->gateway_ports; | |
dfddba3d | 1063 | arg = strdelim(&cp); |
1064 | if (!arg || *arg == '\0') | |
1065 | fatal("%s line %d: missing yes/no/clientspecified " | |
1066 | "argument.", filename, linenum); | |
1067 | value = 0; /* silence compiler */ | |
1068 | if (strcmp(arg, "clientspecified") == 0) | |
1069 | value = 2; | |
1070 | else if (strcmp(arg, "yes") == 0) | |
1071 | value = 1; | |
1072 | else if (strcmp(arg, "no") == 0) | |
1073 | value = 0; | |
1074 | else | |
1075 | fatal("%s line %d: Bad yes/no/clientspecified " | |
1076 | "argument: %s", filename, linenum, arg); | |
1077 | if (*intptr == -1) | |
1078 | *intptr = value; | |
1079 | break; | |
e9702f7d | 1080 | |
7cac2b65 | 1081 | case sUseDNS: |
1082 | intptr = &options->use_dns; | |
e9702f7d | 1083 | goto parse_flag; |
1084 | ||
1085 | case sLogFacility: | |
1086 | intptr = (int *) &options->log_facility; | |
1087 | arg = strdelim(&cp); | |
1088 | value = log_facility_number(arg); | |
1089 | if (value == SYSLOG_FACILITY_NOT_SET) | |
1090 | fatal("%.200s line %d: unsupported log facility '%s'", | |
1091 | filename, linenum, arg ? arg : "<NONE>"); | |
1092 | if (*intptr == -1) | |
1093 | *intptr = (SyslogFacility) value; | |
1094 | break; | |
1095 | ||
1096 | case sLogLevel: | |
1097 | intptr = (int *) &options->log_level; | |
1098 | arg = strdelim(&cp); | |
1099 | value = log_level_number(arg); | |
1100 | if (value == SYSLOG_LEVEL_NOT_SET) | |
1101 | fatal("%.200s line %d: unsupported log level '%s'", | |
1102 | filename, linenum, arg ? arg : "<NONE>"); | |
1103 | if (*intptr == -1) | |
1104 | *intptr = (LogLevel) value; | |
1105 | break; | |
1106 | ||
1107 | case sAllowTcpForwarding: | |
1108 | intptr = &options->allow_tcp_forwarding; | |
1109 | goto parse_flag; | |
1110 | ||
350391c5 | 1111 | case sUsePrivilegeSeparation: |
1112 | intptr = &use_privsep; | |
1113 | goto parse_flag; | |
1114 | ||
e9702f7d | 1115 | case sAllowUsers: |
1116 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
1117 | if (options->num_allow_users >= MAX_ALLOW_USERS) | |
1118 | fatal("%s line %d: too many allow users.", | |
3c0ef626 | 1119 | filename, linenum); |
276b07a3 | 1120 | options->allow_users[options->num_allow_users++] = |
1121 | xstrdup(arg); | |
e9702f7d | 1122 | } |
1123 | break; | |
3c0ef626 | 1124 | |
e9702f7d | 1125 | case sDenyUsers: |
1126 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
1127 | if (options->num_deny_users >= MAX_DENY_USERS) | |
30460aeb | 1128 | fatal("%s line %d: too many deny users.", |
e9702f7d | 1129 | filename, linenum); |
276b07a3 | 1130 | options->deny_users[options->num_deny_users++] = |
1131 | xstrdup(arg); | |
e9702f7d | 1132 | } |
1133 | break; | |
3c0ef626 | 1134 | |
e9702f7d | 1135 | case sAllowGroups: |
1136 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
1137 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) | |
1138 | fatal("%s line %d: too many allow groups.", | |
1139 | filename, linenum); | |
276b07a3 | 1140 | options->allow_groups[options->num_allow_groups++] = |
1141 | xstrdup(arg); | |
e9702f7d | 1142 | } |
1143 | break; | |
1144 | ||
1145 | case sDenyGroups: | |
1146 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
1147 | if (options->num_deny_groups >= MAX_DENY_GROUPS) | |
1148 | fatal("%s line %d: too many deny groups.", | |
1149 | filename, linenum); | |
1150 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); | |
3c0ef626 | 1151 | } |
e9702f7d | 1152 | break; |
1153 | ||
1154 | case sCiphers: | |
1155 | arg = strdelim(&cp); | |
1156 | if (!arg || *arg == '\0') | |
1157 | fatal("%s line %d: Missing argument.", filename, linenum); | |
1158 | if (!ciphers_valid(arg)) | |
1159 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", | |
1160 | filename, linenum, arg ? arg : "<NONE>"); | |
1161 | if (options->ciphers == NULL) | |
1162 | options->ciphers = xstrdup(arg); | |
1163 | break; | |
1164 | ||
1165 | case sMacs: | |
1166 | arg = strdelim(&cp); | |
1167 | if (!arg || *arg == '\0') | |
1168 | fatal("%s line %d: Missing argument.", filename, linenum); | |
1169 | if (!mac_valid(arg)) | |
1170 | fatal("%s line %d: Bad SSH2 mac spec '%s'.", | |
1171 | filename, linenum, arg ? arg : "<NONE>"); | |
1172 | if (options->macs == NULL) | |
1173 | options->macs = xstrdup(arg); | |
1174 | break; | |
1175 | ||
1176 | case sProtocol: | |
1177 | intptr = &options->protocol; | |
1178 | arg = strdelim(&cp); | |
1179 | if (!arg || *arg == '\0') | |
1180 | fatal("%s line %d: Missing argument.", filename, linenum); | |
1181 | value = proto_spec(arg); | |
1182 | if (value == SSH_PROTO_UNKNOWN) | |
1183 | fatal("%s line %d: Bad protocol spec '%s'.", | |
1184 | filename, linenum, arg ? arg : "<NONE>"); | |
1185 | if (*intptr == SSH_PROTO_UNKNOWN) | |
1186 | *intptr = value; | |
1187 | break; | |
1188 | ||
1189 | case sSubsystem: | |
1190 | if (options->num_subsystems >= MAX_SUBSYSTEMS) { | |
1191 | fatal("%s line %d: too many subsystems defined.", | |
1192 | filename, linenum); | |
1193 | } | |
1194 | arg = strdelim(&cp); | |
1195 | if (!arg || *arg == '\0') | |
1196 | fatal("%s line %d: Missing subsystem name.", | |
1197 | filename, linenum); | |
30460aeb | 1198 | if (!*activep) { |
1199 | arg = strdelim(&cp); | |
1200 | break; | |
1201 | } | |
e9702f7d | 1202 | for (i = 0; i < options->num_subsystems; i++) |
1203 | if (strcmp(arg, options->subsystem_name[i]) == 0) | |
1204 | fatal("%s line %d: Subsystem '%s' already defined.", | |
1205 | filename, linenum, arg); | |
1206 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); | |
1207 | arg = strdelim(&cp); | |
1208 | if (!arg || *arg == '\0') | |
1209 | fatal("%s line %d: Missing subsystem command.", | |
1210 | filename, linenum); | |
1211 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); | |
30460aeb | 1212 | |
1213 | /* Collect arguments (separate to executable) */ | |
1214 | p = xstrdup(arg); | |
1215 | len = strlen(p) + 1; | |
1216 | while ((arg = strdelim(&cp)) != NULL && *arg != '\0') { | |
1217 | len += 1 + strlen(arg); | |
1218 | p = xrealloc(p, 1, len); | |
1219 | strlcat(p, " ", len); | |
1220 | strlcat(p, arg, len); | |
1221 | } | |
1222 | options->subsystem_args[options->num_subsystems] = p; | |
e9702f7d | 1223 | options->num_subsystems++; |
1224 | break; | |
1225 | ||
1226 | case sMaxStartups: | |
1227 | arg = strdelim(&cp); | |
1228 | if (!arg || *arg == '\0') | |
1229 | fatal("%s line %d: Missing MaxStartups spec.", | |
1230 | filename, linenum); | |
1231 | if ((n = sscanf(arg, "%d:%d:%d", | |
1232 | &options->max_startups_begin, | |
1233 | &options->max_startups_rate, | |
1234 | &options->max_startups)) == 3) { | |
1235 | if (options->max_startups_begin > | |
1236 | options->max_startups || | |
1237 | options->max_startups_rate > 100 || | |
1238 | options->max_startups_rate < 1) | |
1239 | fatal("%s line %d: Illegal MaxStartups spec.", | |
1240 | filename, linenum); | |
1241 | } else if (n != 1) | |
1242 | fatal("%s line %d: Illegal MaxStartups spec.", | |
1243 | filename, linenum); | |
1244 | else | |
1245 | options->max_startups = options->max_startups_begin; | |
1246 | break; | |
1247 | ||
7e82606e | 1248 | case sMaxAuthTries: |
1249 | intptr = &options->max_authtries; | |
1250 | goto parse_int; | |
1251 | ||
e9702f7d | 1252 | case sBanner: |
1253 | charptr = &options->banner; | |
1254 | goto parse_filename; | |
1255 | /* | |
1256 | * These options can contain %X options expanded at | |
1257 | * connect time, so that you can specify paths like: | |
1258 | * | |
1259 | * AuthorizedKeysFile /etc/ssh_keys/%u | |
1260 | */ | |
1261 | case sAuthorizedKeysFile: | |
1262 | case sAuthorizedKeysFile2: | |
30460aeb | 1263 | charptr = (opcode == sAuthorizedKeysFile) ? |
e9702f7d | 1264 | &options->authorized_keys_file : |
1265 | &options->authorized_keys_file2; | |
1266 | goto parse_filename; | |
1267 | ||
1268 | case sClientAliveInterval: | |
1269 | intptr = &options->client_alive_interval; | |
1270 | goto parse_time; | |
1271 | ||
1272 | case sClientAliveCountMax: | |
1273 | intptr = &options->client_alive_count_max; | |
1274 | goto parse_int; | |
1275 | ||
7e82606e | 1276 | case sAcceptEnv: |
1277 | while ((arg = strdelim(&cp)) && *arg != '\0') { | |
1278 | if (strchr(arg, '=') != NULL) | |
1279 | fatal("%s line %d: Invalid environment name.", | |
1280 | filename, linenum); | |
1281 | if (options->num_accept_env >= MAX_ACCEPT_ENV) | |
1282 | fatal("%s line %d: too many allow env.", | |
1283 | filename, linenum); | |
30460aeb | 1284 | if (!*activep) |
1285 | break; | |
7e82606e | 1286 | options->accept_env[options->num_accept_env++] = |
1287 | xstrdup(arg); | |
1288 | } | |
1289 | break; | |
1290 | ||
08822d99 | 1291 | case sPermitTunnel: |
1292 | intptr = &options->permit_tun; | |
1293 | arg = strdelim(&cp); | |
1294 | if (!arg || *arg == '\0') | |
1295 | fatal("%s line %d: Missing yes/point-to-point/" | |
1296 | "ethernet/no argument.", filename, linenum); | |
1297 | value = 0; /* silence compiler */ | |
1298 | if (strcasecmp(arg, "ethernet") == 0) | |
1299 | value = SSH_TUNMODE_ETHERNET; | |
1300 | else if (strcasecmp(arg, "point-to-point") == 0) | |
1301 | value = SSH_TUNMODE_POINTOPOINT; | |
1302 | else if (strcasecmp(arg, "yes") == 0) | |
1303 | value = SSH_TUNMODE_YES; | |
1304 | else if (strcasecmp(arg, "no") == 0) | |
1305 | value = SSH_TUNMODE_NO; | |
1306 | else | |
1307 | fatal("%s line %d: Bad yes/point-to-point/ethernet/" | |
1308 | "no argument: %s", filename, linenum, arg); | |
1309 | if (*intptr == -1) | |
1310 | *intptr = value; | |
1311 | break; | |
1312 | ||
30460aeb | 1313 | case sMatch: |
1314 | if (cmdline) | |
1315 | fatal("Match directive not supported as a command-line " | |
1316 | "option"); | |
1317 | value = match_cfg_line(&cp, linenum, user, host, address); | |
1318 | if (value < 0) | |
1319 | fatal("%s line %d: Bad Match condition", filename, | |
1320 | linenum); | |
1321 | *activep = value; | |
1322 | break; | |
1323 | ||
1324 | case sPermitOpen: | |
1325 | arg = strdelim(&cp); | |
1326 | if (!arg || *arg == '\0') | |
1327 | fatal("%s line %d: missing PermitOpen specification", | |
1328 | filename, linenum); | |
1329 | if (strcmp(arg, "any") == 0) { | |
1330 | if (*activep) { | |
1331 | channel_clear_adm_permitted_opens(); | |
1332 | options->num_permitted_opens = 0; | |
1333 | } | |
1334 | break; | |
1335 | } | |
1336 | for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) { | |
1337 | p = hpdelim(&arg); | |
1338 | if (p == NULL) | |
1339 | fatal("%s line %d: missing host in PermitOpen", | |
1340 | filename, linenum); | |
1341 | p = cleanhostname(p); | |
1342 | if (arg == NULL || (port = a2port(arg)) == 0) | |
1343 | fatal("%s line %d: bad port number in " | |
1344 | "PermitOpen", filename, linenum); | |
1345 | if (*activep && options->num_permitted_opens == -1) { | |
1346 | channel_clear_adm_permitted_opens(); | |
1347 | options->num_permitted_opens = | |
1348 | channel_add_adm_permitted_opens(p, port); | |
1349 | } | |
1350 | } | |
1351 | break; | |
1352 | ||
1353 | case sForceCommand: | |
1354 | if (cp == NULL) | |
1355 | fatal("%.200s line %d: Missing argument.", filename, | |
1356 | linenum); | |
1357 | len = strspn(cp, WHITESPACE); | |
1358 | if (*activep && options->adm_forced_command == NULL) | |
1359 | options->adm_forced_command = xstrdup(cp + len); | |
1360 | return 0; | |
1361 | ||
e9702f7d | 1362 | case sDeprecated: |
7cac2b65 | 1363 | logit("%s line %d: Deprecated option %s", |
1364 | filename, linenum, arg); | |
1365 | while (arg) | |
1366 | arg = strdelim(&cp); | |
1367 | break; | |
1368 | ||
1369 | case sUnsupported: | |
1370 | logit("%s line %d: Unsupported option %s", | |
e9702f7d | 1371 | filename, linenum, arg); |
1372 | while (arg) | |
1373 | arg = strdelim(&cp); | |
1374 | break; | |
1375 | ||
1376 | default: | |
1377 | fatal("%s line %d: Missing handler for opcode %s (%d)", | |
1378 | filename, linenum, arg, opcode); | |
1379 | } | |
1380 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') | |
1381 | fatal("%s line %d: garbage at end of line; \"%.200s\".", | |
1382 | filename, linenum, arg); | |
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | /* Reads the server configuration file. */ | |
1387 | ||
1388 | void | |
7e82606e | 1389 | load_server_config(const char *filename, Buffer *conf) |
e9702f7d | 1390 | { |
7e82606e | 1391 | char line[1024], *cp; |
276b07a3 | 1392 | FILE *f; |
e9702f7d | 1393 | |
7e82606e | 1394 | debug2("%s: filename %s", __func__, filename); |
1395 | if ((f = fopen(filename, "r")) == NULL) { | |
e9702f7d | 1396 | perror(filename); |
1397 | exit(1); | |
1398 | } | |
7e82606e | 1399 | buffer_clear(conf); |
e9702f7d | 1400 | while (fgets(line, sizeof(line), f)) { |
7e82606e | 1401 | /* |
1402 | * Trim out comments and strip whitespace | |
1403 | * NB - preserve newlines, they are needed to reproduce | |
1404 | * line numbers later for error messages | |
1405 | */ | |
1406 | if ((cp = strchr(line, '#')) != NULL) | |
1407 | memcpy(cp, "\n", 2); | |
1408 | cp = line + strspn(line, " \t\r"); | |
1409 | ||
1410 | buffer_append(conf, cp, strlen(cp)); | |
3c0ef626 | 1411 | } |
7e82606e | 1412 | buffer_append(conf, "\0", 1); |
3c0ef626 | 1413 | fclose(f); |
7e82606e | 1414 | debug2("%s: done config len = %d", __func__, buffer_len(conf)); |
1415 | } | |
1416 | ||
1417 | void | |
30460aeb | 1418 | parse_server_match_config(ServerOptions *options, const char *user, |
1419 | const char *host, const char *address) | |
1420 | { | |
1421 | ServerOptions mo; | |
1422 | ||
1423 | initialize_server_options(&mo); | |
1424 | parse_server_config(&mo, "reprocess config", &cfg, user, host, address); | |
1425 | copy_set_server_options(options, &mo); | |
1426 | } | |
1427 | ||
1428 | /* Copy any (supported) values that are set */ | |
1429 | void | |
1430 | copy_set_server_options(ServerOptions *dst, ServerOptions *src) | |
1431 | { | |
1432 | if (src->allow_tcp_forwarding != -1) | |
1433 | dst->allow_tcp_forwarding = src->allow_tcp_forwarding; | |
1434 | if (src->gateway_ports != -1) | |
1435 | dst->gateway_ports = src->gateway_ports; | |
1436 | if (src->adm_forced_command != NULL) { | |
1437 | if (dst->adm_forced_command != NULL) | |
1438 | xfree(dst->adm_forced_command); | |
1439 | dst->adm_forced_command = src->adm_forced_command; | |
1440 | } | |
1441 | if (src->x11_display_offset != -1) | |
1442 | dst->x11_display_offset = src->x11_display_offset; | |
1443 | if (src->x11_forwarding != -1) | |
1444 | dst->x11_forwarding = src->x11_forwarding; | |
1445 | if (src->x11_use_localhost != -1) | |
1446 | dst->x11_use_localhost = src->x11_use_localhost; | |
1447 | } | |
1448 | ||
1449 | void | |
1450 | parse_server_config(ServerOptions *options, const char *filename, Buffer *conf, | |
1451 | const char *user, const char *host, const char *address) | |
7e82606e | 1452 | { |
30460aeb | 1453 | int active, linenum, bad_options = 0; |
7e82606e | 1454 | char *cp, *obuf, *cbuf; |
1455 | ||
1456 | debug2("%s: config %s len %d", __func__, filename, buffer_len(conf)); | |
1457 | ||
1458 | obuf = cbuf = xstrdup(buffer_ptr(conf)); | |
30460aeb | 1459 | active = user ? 0 : 1; |
7e82606e | 1460 | linenum = 1; |
8b32eddc | 1461 | while ((cp = strsep(&cbuf, "\n")) != NULL) { |
7e82606e | 1462 | if (process_server_config_line(options, cp, filename, |
30460aeb | 1463 | linenum++, &active, user, host, address) != 0) |
7e82606e | 1464 | bad_options++; |
1465 | } | |
1466 | xfree(obuf); | |
3c0ef626 | 1467 | if (bad_options > 0) |
1468 | fatal("%s: terminating, %d bad configuration options", | |
1469 | filename, bad_options); | |
1470 | } |