Annotation of src/usr.bin/ssh/servconf.c, Revision 1.391
1.226 dtucker 1:
1.391 ! djm 2: /* $OpenBSD: servconf.c,v 1.390 2023/01/17 09:44:48 djm Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.315 djm 17: #include <sys/sysctl.h>
1.366 markus 18: #include <sys/stat.h>
1.154 stevesk 19:
1.213 djm 20: #include <netinet/in.h>
21: #include <netinet/ip.h>
1.315 djm 22: #include <net/route.h>
1.213 djm 23:
1.235 dtucker 24: #include <ctype.h>
1.360 djm 25: #include <glob.h>
1.154 stevesk 26: #include <netdb.h>
1.165 dtucker 27: #include <pwd.h>
1.162 stevesk 28: #include <stdio.h>
1.161 stevesk 29: #include <stdlib.h>
1.160 stevesk 30: #include <string.h>
1.164 deraadt 31: #include <signal.h>
1.155 stevesk 32: #include <unistd.h>
1.259 deraadt 33: #include <limits.h>
1.164 deraadt 34: #include <stdarg.h>
1.182 dtucker 35: #include <errno.h>
1.236 dtucker 36: #include <util.h>
1.1 deraadt 37:
1.164 deraadt 38: #include "xmalloc.h"
1.1 deraadt 39: #include "ssh.h"
1.62 markus 40: #include "log.h"
1.338 markus 41: #include "sshbuf.h"
1.251 millert 42: #include "misc.h"
1.1 deraadt 43: #include "servconf.h"
1.33 markus 44: #include "compat.h"
1.60 markus 45: #include "pathnames.h"
1.62 markus 46: #include "cipher.h"
1.339 markus 47: #include "sshkey.h"
1.66 markus 48: #include "kex.h"
49: #include "mac.h"
1.153 dtucker 50: #include "match.h"
1.156 dtucker 51: #include "channels.h"
1.165 dtucker 52: #include "groupaccess.h"
1.226 dtucker 53: #include "canohost.h"
54: #include "packet.h"
1.338 markus 55: #include "ssherr.h"
1.232 djm 56: #include "hostfile.h"
57: #include "auth.h"
1.252 djm 58: #include "myproposal.h"
1.256 djm 59: #include "digest.h"
1.345 djm 60:
1.315 djm 61: static void add_listen_addr(ServerOptions *, const char *,
62: const char *, int);
63: static void add_one_listen_addr(ServerOptions *, const char *,
64: const char *, int);
1.364 djm 65: static void parse_server_config_depth(ServerOptions *options,
66: const char *filename, struct sshbuf *conf, struct include_list *includes,
1.360 djm 67: struct connection_info *connectinfo, int flags, int *activep, int depth);
1.29 markus 68:
1.102 provos 69: /* Use of privilege separation or not */
70: extern int use_privsep;
1.338 markus 71: extern struct sshbuf *cfg;
1.62 markus 72:
1.1 deraadt 73: /* Initializes the server options to their default values. */
74:
1.34 markus 75: void
1.25 markus 76: initialize_server_options(ServerOptions *options)
1.1 deraadt 77: {
1.25 markus 78: memset(options, 0, sizeof(*options));
1.29 markus 79: options->num_ports = 0;
80: options->ports_from_cmdline = 0;
1.266 dtucker 81: options->queued_listen_addrs = NULL;
82: options->num_queued_listens = 0;
1.29 markus 83: options->listen_addrs = NULL;
1.315 djm 84: options->num_listen_addrs = 0;
1.138 djm 85: options->address_family = -1;
1.316 djm 86: options->routing_domain = NULL;
1.54 markus 87: options->num_host_key_files = 0;
1.203 djm 88: options->num_host_cert_files = 0;
1.240 markus 89: options->host_key_agent = NULL;
1.36 markus 90: options->pid_file = NULL;
1.25 markus 91: options->login_grace_time = -1;
1.279 chris 92: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 93: options->ignore_rhosts = -1;
94: options->ignore_user_known_hosts = -1;
95: options->print_motd = -1;
1.72 stevesk 96: options->print_lastlog = -1;
1.25 markus 97: options->x11_forwarding = -1;
98: options->x11_display_offset = -1;
1.99 stevesk 99: options->x11_use_localhost = -1;
1.244 djm 100: options->permit_tty = -1;
1.250 djm 101: options->permit_user_rc = -1;
1.42 markus 102: options->xauth_location = NULL;
1.25 markus 103: options->strict_modes = -1;
1.129 markus 104: options->tcp_keep_alive = -1;
1.101 markus 105: options->log_facility = SYSLOG_FACILITY_NOT_SET;
106: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.370 djm 107: options->num_log_verbose = 0;
108: options->log_verbose = NULL;
1.75 markus 109: options->hostbased_authentication = -1;
110: options->hostbased_uses_name_from_packet_only = -1;
1.375 dtucker 111: options->hostbased_accepted_algos = NULL;
1.276 markus 112: options->hostkeyalgorithms = NULL;
1.54 markus 113: options->pubkey_authentication = -1;
1.354 djm 114: options->pubkey_auth_options = -1;
1.374 dtucker 115: options->pubkey_accepted_algos = NULL;
1.25 markus 116: options->kerberos_authentication = -1;
117: options->kerberos_or_local_passwd = -1;
118: options->kerberos_ticket_cleanup = -1;
1.130 jakob 119: options->kerberos_get_afs_token = -1;
1.125 markus 120: options->gss_authentication=-1;
121: options->gss_cleanup_creds = -1;
1.271 djm 122: options->gss_strict_acceptor = -1;
1.25 markus 123: options->password_authentication = -1;
1.52 markus 124: options->kbd_interactive_authentication = -1;
1.25 markus 125: options->permit_empty_passwd = -1;
1.113 markus 126: options->permit_user_env = -1;
1.367 djm 127: options->permit_user_env_allowlist = NULL;
1.111 markus 128: options->compression = -1;
1.235 dtucker 129: options->rekey_limit = -1;
130: options->rekey_interval = -1;
1.53 markus 131: options->allow_tcp_forwarding = -1;
1.251 millert 132: options->allow_streamlocal_forwarding = -1;
1.178 pyr 133: options->allow_agent_forwarding = -1;
1.25 markus 134: options->num_allow_users = 0;
135: options->num_deny_users = 0;
136: options->num_allow_groups = 0;
137: options->num_deny_groups = 0;
1.33 markus 138: options->ciphers = NULL;
1.66 markus 139: options->macs = NULL;
1.211 djm 140: options->kex_algorithms = NULL;
1.341 djm 141: options->ca_sign_algorithms = NULL;
1.251 millert 142: options->fwd_opts.gateway_ports = -1;
143: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
144: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 145: options->num_subsystems = 0;
1.50 markus 146: options->max_startups_begin = -1;
147: options->max_startups_rate = -1;
1.46 markus 148: options->max_startups = -1;
1.372 dtucker 149: options->per_source_max_startups = -1;
150: options->per_source_masklen_ipv4 = -1;
151: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 152: options->max_authtries = -1;
1.180 djm 153: options->max_sessions = -1;
1.57 markus 154: options->banner = NULL;
1.122 markus 155: options->use_dns = -1;
1.77 beck 156: options->client_alive_interval = -1;
157: options->client_alive_count_max = -1;
1.219 djm 158: options->num_authkeys_files = 0;
1.131 djm 159: options->num_accept_env = 0;
1.332 djm 160: options->num_setenv = 0;
1.145 reyk 161: options->permit_tun = -1;
1.310 djm 162: options->permitted_opens = NULL;
1.330 djm 163: options->permitted_listens = NULL;
1.158 dtucker 164: options->adm_forced_command = NULL;
1.176 djm 165: options->chroot_directory = NULL;
1.231 djm 166: options->authorized_keys_command = NULL;
167: options->authorized_keys_command_user = NULL;
1.204 djm 168: options->revoked_keys_file = NULL;
1.355 djm 169: options->sk_provider = NULL;
1.204 djm 170: options->trusted_user_ca_keys = NULL;
1.208 djm 171: options->authorized_principals_file = NULL;
1.270 djm 172: options->authorized_principals_command = NULL;
173: options->authorized_principals_command_user = NULL;
1.213 djm 174: options->ip_qos_interactive = -1;
175: options->ip_qos_bulk = -1;
1.225 djm 176: options->version_addendum = NULL;
1.256 djm 177: options->fingerprint_hash = -1;
1.301 djm 178: options->disable_forwarding = -1;
1.309 djm 179: options->expose_userauth_info = -1;
1.386 djm 180: options->required_rsa_size = -1;
1.389 djm 181: options->channel_timeouts = NULL;
182: options->num_channel_timeouts = 0;
1.390 djm 183: options->unused_connection_timeout = -1;
1.1 deraadt 184: }
185:
1.257 djm 186: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
187: static int
188: option_clear_or_none(const char *o)
189: {
190: return o == NULL || strcasecmp(o, "none") == 0;
191: }
192:
1.282 djm 193: static void
194: assemble_algorithms(ServerOptions *o)
195: {
1.341 djm 196: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 197: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 198: int r;
1.335 djm 199:
200: all_cipher = cipher_alg_list(',', 0);
201: all_mac = mac_alg_list(',');
202: all_kex = kex_alg_list(',');
203: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 204: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 205: /* remove unsupported algos from default lists */
1.367 djm 206: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
207: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
208: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
209: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
210: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 211: #define ASSEMBLE(what, defaults, all) \
212: do { \
213: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 214: fatal_fr(r, "%s", #what); \
1.340 djm 215: } while (0)
1.358 dtucker 216: ASSEMBLE(ciphers, def_cipher, all_cipher);
217: ASSEMBLE(macs, def_mac, all_mac);
218: ASSEMBLE(kex_algorithms, def_kex, all_kex);
219: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 220: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 221: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 222: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 223: #undef ASSEMBLE
1.335 djm 224: free(all_cipher);
225: free(all_mac);
226: free(all_kex);
227: free(all_key);
1.341 djm 228: free(all_sig);
1.358 dtucker 229: free(def_cipher);
230: free(def_mac);
231: free(def_kex);
232: free(def_key);
233: free(def_sig);
1.282 djm 234: }
235:
1.314 djm 236: void
237: servconf_add_hostkey(const char *file, const int line,
1.344 djm 238: ServerOptions *options, const char *path, int userprovided)
1.314 djm 239: {
240: char *apath = derelativise_path(path);
241:
1.376 markus 242: opt_array_append2(file, line, "HostKey",
1.344 djm 243: &options->host_key_files, &options->host_key_file_userprovided,
244: &options->num_host_key_files, apath, userprovided);
1.314 djm 245: free(apath);
246: }
247:
248: void
249: servconf_add_hostcert(const char *file, const int line,
250: ServerOptions *options, const char *path)
251: {
252: char *apath = derelativise_path(path);
253:
1.376 markus 254: opt_array_append(file, line, "HostCertificate",
1.314 djm 255: &options->host_cert_files, &options->num_host_cert_files, apath);
256: free(apath);
257: }
258:
1.34 markus 259: void
1.25 markus 260: fill_default_server_options(ServerOptions *options)
1.1 deraadt 261: {
1.314 djm 262: u_int i;
1.257 djm 263:
1.54 markus 264: if (options->num_host_key_files == 0) {
1.293 naddy 265: /* fill default hostkeys */
1.314 djm 266: servconf_add_hostkey("[default]", 0, options,
1.344 djm 267: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 268: servconf_add_hostkey("[default]", 0, options,
1.344 djm 269: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 270: servconf_add_hostkey("[default]", 0, options,
1.344 djm 271: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 272: #ifdef WITH_XMSS
1.325 markus 273: servconf_add_hostkey("[default]", 0, options,
1.344 djm 274: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 275: #endif /* WITH_XMSS */
1.54 markus 276: }
1.203 djm 277: /* No certificates by default */
1.29 markus 278: if (options->num_ports == 0)
279: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 280: if (options->address_family == -1)
281: options->address_family = AF_UNSPEC;
1.29 markus 282: if (options->listen_addrs == NULL)
1.315 djm 283: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 284: if (options->pid_file == NULL)
1.257 djm 285: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 286: if (options->moduli_file == NULL)
287: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 288: if (options->login_grace_time == -1)
1.115 stevesk 289: options->login_grace_time = 120;
1.67 markus 290: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 291: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 292: if (options->ignore_rhosts == -1)
1.30 markus 293: options->ignore_rhosts = 1;
1.25 markus 294: if (options->ignore_user_known_hosts == -1)
295: options->ignore_user_known_hosts = 0;
296: if (options->print_motd == -1)
297: options->print_motd = 1;
1.72 stevesk 298: if (options->print_lastlog == -1)
299: options->print_lastlog = 1;
1.25 markus 300: if (options->x11_forwarding == -1)
1.30 markus 301: options->x11_forwarding = 0;
1.25 markus 302: if (options->x11_display_offset == -1)
1.30 markus 303: options->x11_display_offset = 10;
1.99 stevesk 304: if (options->x11_use_localhost == -1)
305: options->x11_use_localhost = 1;
1.42 markus 306: if (options->xauth_location == NULL)
1.257 djm 307: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 308: if (options->permit_tty == -1)
309: options->permit_tty = 1;
1.250 djm 310: if (options->permit_user_rc == -1)
311: options->permit_user_rc = 1;
1.25 markus 312: if (options->strict_modes == -1)
313: options->strict_modes = 1;
1.129 markus 314: if (options->tcp_keep_alive == -1)
315: options->tcp_keep_alive = 1;
1.101 markus 316: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 317: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 318: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 319: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 320: if (options->hostbased_authentication == -1)
321: options->hostbased_authentication = 0;
322: if (options->hostbased_uses_name_from_packet_only == -1)
323: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 324: if (options->pubkey_authentication == -1)
325: options->pubkey_authentication = 1;
1.354 djm 326: if (options->pubkey_auth_options == -1)
327: options->pubkey_auth_options = 0;
1.25 markus 328: if (options->kerberos_authentication == -1)
1.107 markus 329: options->kerberos_authentication = 0;
1.25 markus 330: if (options->kerberos_or_local_passwd == -1)
331: options->kerberos_or_local_passwd = 1;
332: if (options->kerberos_ticket_cleanup == -1)
333: options->kerberos_ticket_cleanup = 1;
1.130 jakob 334: if (options->kerberos_get_afs_token == -1)
335: options->kerberos_get_afs_token = 0;
1.125 markus 336: if (options->gss_authentication == -1)
337: options->gss_authentication = 0;
338: if (options->gss_cleanup_creds == -1)
339: options->gss_cleanup_creds = 1;
1.271 djm 340: if (options->gss_strict_acceptor == -1)
1.302 djm 341: options->gss_strict_acceptor = 1;
1.25 markus 342: if (options->password_authentication == -1)
343: options->password_authentication = 1;
1.52 markus 344: if (options->kbd_interactive_authentication == -1)
1.381 dtucker 345: options->kbd_interactive_authentication = 1;
1.25 markus 346: if (options->permit_empty_passwd == -1)
1.30 markus 347: options->permit_empty_passwd = 0;
1.334 djm 348: if (options->permit_user_env == -1) {
1.113 markus 349: options->permit_user_env = 0;
1.367 djm 350: options->permit_user_env_allowlist = NULL;
1.334 djm 351: }
1.111 markus 352: if (options->compression == -1)
1.359 dtucker 353: #ifdef WITH_ZLIB
1.337 sf 354: options->compression = COMP_DELAYED;
1.359 dtucker 355: #else
356: options->compression = COMP_NONE;
357: #endif
358:
1.235 dtucker 359: if (options->rekey_limit == -1)
360: options->rekey_limit = 0;
361: if (options->rekey_interval == -1)
362: options->rekey_interval = 0;
1.53 markus 363: if (options->allow_tcp_forwarding == -1)
1.233 djm 364: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 365: if (options->allow_streamlocal_forwarding == -1)
366: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 367: if (options->allow_agent_forwarding == -1)
368: options->allow_agent_forwarding = 1;
1.251 millert 369: if (options->fwd_opts.gateway_ports == -1)
370: options->fwd_opts.gateway_ports = 0;
1.46 markus 371: if (options->max_startups == -1)
1.234 dtucker 372: options->max_startups = 100;
1.50 markus 373: if (options->max_startups_rate == -1)
1.234 dtucker 374: options->max_startups_rate = 30; /* 30% */
1.50 markus 375: if (options->max_startups_begin == -1)
1.234 dtucker 376: options->max_startups_begin = 10;
1.372 dtucker 377: if (options->per_source_max_startups == -1)
378: options->per_source_max_startups = INT_MAX;
379: if (options->per_source_masklen_ipv4 == -1)
380: options->per_source_masklen_ipv4 = 32;
381: if (options->per_source_masklen_ipv6 == -1)
382: options->per_source_masklen_ipv6 = 128;
1.133 dtucker 383: if (options->max_authtries == -1)
384: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 385: if (options->max_sessions == -1)
386: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 387: if (options->use_dns == -1)
1.260 deraadt 388: options->use_dns = 0;
1.77 beck 389: if (options->client_alive_interval == -1)
1.95 deraadt 390: options->client_alive_interval = 0;
1.77 beck 391: if (options->client_alive_count_max == -1)
392: options->client_alive_count_max = 3;
1.219 djm 393: if (options->num_authkeys_files == 0) {
1.376 markus 394: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 395: &options->authorized_keys_files,
396: &options->num_authkeys_files,
397: _PATH_SSH_USER_PERMITTED_KEYS);
1.376 markus 398: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 399: &options->authorized_keys_files,
400: &options->num_authkeys_files,
401: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 402: }
1.145 reyk 403: if (options->permit_tun == -1)
1.146 reyk 404: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 405: if (options->ip_qos_interactive == -1)
1.327 job 406: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 407: if (options->ip_qos_bulk == -1)
1.327 job 408: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 409: if (options->version_addendum == NULL)
410: options->version_addendum = xstrdup("");
1.251 millert 411: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
412: options->fwd_opts.streamlocal_bind_mask = 0177;
413: if (options->fwd_opts.streamlocal_bind_unlink == -1)
414: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 415: if (options->fingerprint_hash == -1)
416: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 417: if (options->disable_forwarding == -1)
418: options->disable_forwarding = 0;
1.309 djm 419: if (options->expose_userauth_info == -1)
420: options->expose_userauth_info = 0;
1.355 djm 421: if (options->sk_provider == NULL)
422: options->sk_provider = xstrdup("internal");
1.386 djm 423: if (options->required_rsa_size == -1)
424: options->required_rsa_size = SSH_RSA_MINIMUM_MODULUS_SIZE;
1.390 djm 425: if (options->unused_connection_timeout == -1)
426: options->unused_connection_timeout = 0;
1.277 djm 427:
1.282 djm 428: assemble_algorithms(options);
1.277 djm 429:
1.285 djm 430: /* Turn privilege separation and sandboxing on by default */
1.102 provos 431: if (use_privsep == -1)
1.285 djm 432: use_privsep = PRIVSEP_ON;
1.257 djm 433:
434: #define CLEAR_ON_NONE(v) \
435: do { \
436: if (option_clear_or_none(v)) { \
437: free(v); \
438: v = NULL; \
439: } \
440: } while(0)
1.389 djm 441: #define CLEAR_ON_NONE_ARRAY(v, nv, none) \
442: do { \
443: if (options->nv == 1 && \
444: strcasecmp(options->v[0], none) == 0) { \
445: free(options->v[0]); \
446: free(options->v); \
447: options->v = NULL; \
448: options->nv = 0; \
449: } \
450: } while (0)
1.257 djm 451: CLEAR_ON_NONE(options->pid_file);
452: CLEAR_ON_NONE(options->xauth_location);
453: CLEAR_ON_NONE(options->banner);
454: CLEAR_ON_NONE(options->trusted_user_ca_keys);
455: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 456: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 457: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 458: CLEAR_ON_NONE(options->adm_forced_command);
459: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 460: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 461: CLEAR_ON_NONE(options->host_key_agent);
1.389 djm 462:
1.257 djm 463: for (i = 0; i < options->num_host_key_files; i++)
464: CLEAR_ON_NONE(options->host_key_files[i]);
465: for (i = 0; i < options->num_host_cert_files; i++)
466: CLEAR_ON_NONE(options->host_cert_files[i]);
1.389 djm 467:
468: CLEAR_ON_NONE_ARRAY(channel_timeouts, num_channel_timeouts, "none");
469: CLEAR_ON_NONE_ARRAY(auth_methods, num_auth_methods, "any");
1.257 djm 470: #undef CLEAR_ON_NONE
1.389 djm 471: #undef CLEAR_ON_NONE_ARRAY
1.1 deraadt 472: }
473:
474: /* Keyword tokens. */
1.25 markus 475: typedef enum {
476: sBadOption, /* == unknown option */
1.293 naddy 477: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 478: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 479: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.382 millert 480: sKerberosGetAFSToken, sPasswordAuthentication,
481: sKbdInteractiveAuthentication, sListenAddress, sAddressFamily,
1.72 stevesk 482: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 483: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 484: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 485: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 486: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 487: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 488: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 489: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 490: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 491: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 492: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 493: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 494: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 495: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 496: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 497: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 498: sHostCertificate, sInclude,
1.208 djm 499: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 500: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 501: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 502: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 503: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 504: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 505: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 506: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.390 djm 507: sRequiredRSASize, sChannelTimeout, sUnusedConnectionTimeout,
1.295 djm 508: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 509: } ServerOpCodes;
510:
1.360 djm 511: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
512: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
513: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
514: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 515: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 516:
1.1 deraadt 517: /* Textual representation of the tokens. */
1.25 markus 518: static struct {
519: const char *name;
520: ServerOpCodes opcode;
1.153 dtucker 521: u_int flags;
1.25 markus 522: } keywords[] = {
1.153 dtucker 523: { "port", sPort, SSHCFG_GLOBAL },
524: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
525: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 526: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 527: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 528: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 529: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 530: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 531: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 532: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 533: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 534: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 535: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 536: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 537: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 538: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 539: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 540: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 541: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 542: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 543: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 544: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 545: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 546: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 547: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 548: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 549: #ifdef KRB5
1.168 dtucker 550: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 551: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
552: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
553: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 554: #else
1.168 dtucker 555: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 556: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
557: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
558: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 559: #endif
1.153 dtucker 560: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
561: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 562: #ifdef GSSAPI
1.168 dtucker 563: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 564: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 565: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 566: #else
1.168 dtucker 567: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 568: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 569: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 570: #endif
1.168 dtucker 571: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
572: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.381 dtucker 573: { "challengeresponseauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
574: { "skeyauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
1.153 dtucker 575: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
576: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
577: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
578: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
579: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 580: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 581: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 582: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
583: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
584: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 585: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
586: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 587: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 588: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 589: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 590: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 591: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 592: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
593: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
594: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 595: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 596: { "allowusers", sAllowUsers, SSHCFG_ALL },
597: { "denyusers", sDenyUsers, SSHCFG_ALL },
598: { "allowgroups", sAllowGroups, SSHCFG_ALL },
599: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 600: { "ciphers", sCiphers, SSHCFG_GLOBAL },
601: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 602: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 603: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
604: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
605: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 606: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
607: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 608: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 609: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 610: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 611: { "usedns", sUseDNS, SSHCFG_GLOBAL },
612: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
613: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 614: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
615: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 616: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 617: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 618: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 619: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 620: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 621: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 622: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 623: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 624: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 625: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 626: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 627: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 628: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 629: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 630: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
631: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 632: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 633: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 634: { "include", sInclude, SSHCFG_ALL },
1.213 djm 635: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 636: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
637: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 638: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
639: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 640: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 641: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 642: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
643: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
644: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 645: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 646: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 647: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 648: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 649: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 650: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.386 djm 651: { "requiredrsasize", sRequiredRSASize, SSHCFG_ALL },
1.389 djm 652: { "channeltimeout", sChannelTimeout, SSHCFG_ALL },
1.390 djm 653: { "unusedconnectiontimeout", sUnusedConnectionTimeout, SSHCFG_ALL },
1.153 dtucker 654: { NULL, sBadOption, 0 }
1.1 deraadt 655: };
656:
1.182 dtucker 657: static struct {
658: int val;
659: char *text;
660: } tunmode_desc[] = {
661: { SSH_TUNMODE_NO, "no" },
662: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
663: { SSH_TUNMODE_ETHERNET, "ethernet" },
664: { SSH_TUNMODE_YES, "yes" },
665: { -1, NULL }
666: };
667:
1.329 djm 668: /* Returns an opcode name from its number */
669:
670: static const char *
671: lookup_opcode_name(ServerOpCodes code)
672: {
673: u_int i;
674:
675: for (i = 0; keywords[i].name != NULL; i++)
676: if (keywords[i].opcode == code)
677: return(keywords[i].name);
678: return "UNKNOWN";
679: }
680:
681:
1.27 markus 682: /*
1.73 stevesk 683: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 684: */
1.1 deraadt 685:
1.34 markus 686: static ServerOpCodes
1.25 markus 687: parse_token(const char *cp, const char *filename,
1.153 dtucker 688: int linenum, u_int *flags)
1.1 deraadt 689: {
1.55 markus 690: u_int i;
1.1 deraadt 691:
1.25 markus 692: for (i = 0; keywords[i].name; i++)
1.153 dtucker 693: if (strcasecmp(cp, keywords[i].name) == 0) {
694: *flags = keywords[i].flags;
1.25 markus 695: return keywords[i].opcode;
1.153 dtucker 696: }
1.25 markus 697:
1.78 stevesk 698: error("%s: line %d: Bad configuration option: %s",
699: filename, linenum, cp);
1.25 markus 700: return sBadOption;
1.1 deraadt 701: }
702:
1.202 djm 703: char *
704: derelativise_path(const char *path)
705: {
1.259 deraadt 706: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 707:
1.257 djm 708: if (strcasecmp(path, "none") == 0)
709: return xstrdup("none");
1.202 djm 710: expanded = tilde_expand_filename(path, getuid());
1.343 djm 711: if (path_absolute(expanded))
1.202 djm 712: return expanded;
1.207 djm 713: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 714: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 715: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 716: free(expanded);
1.202 djm 717: return ret;
718: }
719:
1.84 itojun 720: static void
1.315 djm 721: add_listen_addr(ServerOptions *options, const char *addr,
722: const char *rdomain, int port)
1.74 stevesk 723: {
1.142 djm 724: u_int i;
1.74 stevesk 725:
1.315 djm 726: if (port > 0)
727: add_one_listen_addr(options, addr, rdomain, port);
728: else {
729: for (i = 0; i < options->num_ports; i++) {
730: add_one_listen_addr(options, addr, rdomain,
731: options->ports[i]);
732: }
733: }
1.74 stevesk 734: }
735:
1.84 itojun 736: static void
1.315 djm 737: add_one_listen_addr(ServerOptions *options, const char *addr,
738: const char *rdomain, int port)
1.29 markus 739: {
740: struct addrinfo hints, *ai, *aitop;
741: char strport[NI_MAXSERV];
742: int gaierr;
1.315 djm 743: u_int i;
744:
745: /* Find listen_addrs entry for this rdomain */
746: for (i = 0; i < options->num_listen_addrs; i++) {
747: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
748: break;
749: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
750: continue;
751: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
752: break;
753: }
754: if (i >= options->num_listen_addrs) {
755: /* No entry for this rdomain; allocate one */
756: if (i >= INT_MAX)
1.371 djm 757: fatal_f("too many listen addresses");
1.315 djm 758: options->listen_addrs = xrecallocarray(options->listen_addrs,
759: options->num_listen_addrs, options->num_listen_addrs + 1,
760: sizeof(*options->listen_addrs));
761: i = options->num_listen_addrs++;
762: if (rdomain != NULL)
763: options->listen_addrs[i].rdomain = xstrdup(rdomain);
764: }
765: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 766:
1.74 stevesk 767: memset(&hints, 0, sizeof(hints));
1.138 djm 768: hints.ai_family = options->address_family;
1.74 stevesk 769: hints.ai_socktype = SOCK_STREAM;
770: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 771: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 772: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
773: fatal("bad addr or host: %s (%s)",
774: addr ? addr : "<NULL>",
1.173 dtucker 775: ssh_gai_strerror(gaierr));
1.74 stevesk 776: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
777: ;
1.315 djm 778: ai->ai_next = options->listen_addrs[i].addrs;
779: options->listen_addrs[i].addrs = aitop;
780: }
781:
782: /* Returns nonzero if the routing domain name is valid */
783: static int
784: valid_rdomain(const char *name)
785: {
786: const char *errstr;
787: long long num;
788: struct rt_tableinfo info;
789: int mib[6];
790: size_t miblen = sizeof(mib);
791:
792: if (name == NULL)
793: return 1;
794:
795: num = strtonum(name, 0, 255, &errstr);
796: if (errstr != NULL)
797: return 0;
798:
799: /* Check whether the table actually exists */
800: memset(mib, 0, sizeof(mib));
801: mib[0] = CTL_NET;
802: mib[1] = PF_ROUTE;
803: mib[4] = NET_RT_TABLE;
804: mib[5] = (int)num;
805: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
806: return 0;
807:
808: return 1;
1.29 markus 809: }
810:
1.266 dtucker 811: /*
812: * Queue a ListenAddress to be processed once we have all of the Ports
813: * and AddressFamily options.
814: */
815: static void
1.315 djm 816: queue_listen_addr(ServerOptions *options, const char *addr,
817: const char *rdomain, int port)
1.266 dtucker 818: {
1.315 djm 819: struct queued_listenaddr *qla;
820:
821: options->queued_listen_addrs = xrecallocarray(
822: options->queued_listen_addrs,
823: options->num_queued_listens, options->num_queued_listens + 1,
824: sizeof(*options->queued_listen_addrs));
825: qla = &options->queued_listen_addrs[options->num_queued_listens++];
826: qla->addr = xstrdup(addr);
827: qla->port = port;
828: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 829: }
830:
831: /*
832: * Process queued (text) ListenAddress entries.
833: */
834: static void
835: process_queued_listen_addrs(ServerOptions *options)
836: {
837: u_int i;
1.315 djm 838: struct queued_listenaddr *qla;
1.266 dtucker 839:
840: if (options->num_ports == 0)
841: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
842: if (options->address_family == -1)
843: options->address_family = AF_UNSPEC;
844:
845: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 846: qla = &options->queued_listen_addrs[i];
847: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
848: free(qla->addr);
849: free(qla->rdomain);
1.266 dtucker 850: }
851: free(options->queued_listen_addrs);
852: options->queued_listen_addrs = NULL;
853: options->num_queued_listens = 0;
854: }
855:
1.310 djm 856: /*
1.329 djm 857: * Inform channels layer of permitopen options for a single forwarding
858: * direction (local/remote).
1.310 djm 859: */
1.329 djm 860: static void
861: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
862: char **opens, u_int num_opens)
1.310 djm 863: {
864: u_int i;
865: int port;
1.383 dtucker 866: char *host, *arg, *oarg;
1.329 djm 867: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
868: const char *what = lookup_opcode_name(opcode);
1.310 djm 869:
1.329 djm 870: channel_clear_permission(ssh, FORWARD_ADM, where);
871: if (num_opens == 0)
1.310 djm 872: return; /* permit any */
873:
874: /* handle keywords: "any" / "none" */
1.329 djm 875: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 876: return;
1.329 djm 877: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
878: channel_disable_admin(ssh, where);
1.310 djm 879: return;
880: }
881: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 882: for (i = 0; i < num_opens; i++) {
883: oarg = arg = xstrdup(opens[i]);
1.383 dtucker 884: host = hpdelim(&arg);
885: if (host == NULL)
1.371 djm 886: fatal_f("missing host in %s", what);
1.310 djm 887: host = cleanhostname(host);
888: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.371 djm 889: fatal_f("bad port number in %s", what);
1.310 djm 890: /* Send it to channels layer */
1.329 djm 891: channel_add_permission(ssh, FORWARD_ADM,
892: where, host, port);
1.310 djm 893: free(oarg);
894: }
895: }
896:
1.329 djm 897: /*
898: * Inform channels layer of permitopen options from configuration.
899: */
900: void
901: process_permitopen(struct ssh *ssh, ServerOptions *options)
902: {
903: process_permitopen_list(ssh, sPermitOpen,
904: options->permitted_opens, options->num_permitted_opens);
1.330 djm 905: process_permitopen_list(ssh, sPermitListen,
906: options->permitted_listens,
907: options->num_permitted_listens);
1.329 djm 908: }
909:
1.389 djm 910: /* Parse a ChannelTimeout clause "pattern=interval" */
911: static int
912: parse_timeout(const char *s, char **typep, u_int *secsp)
913: {
914: char *cp, *sdup;
915: int secs;
916:
917: if (typep != NULL)
918: *typep = NULL;
919: if (secsp != NULL)
920: *secsp = 0;
921: if (s == NULL)
922: return -1;
923: sdup = xstrdup(s);
924:
925: if ((cp = strchr(sdup, '=')) == NULL || cp == sdup) {
926: free(sdup);
927: return -1;
928: }
929: *cp++ = '\0';
930: if ((secs = convtime(cp)) < 0) {
931: free(sdup);
932: return -1;
933: }
934: /* success */
935: if (typep != NULL)
936: *typep = xstrdup(sdup);
937: if (secsp != NULL)
938: *secsp = (u_int)secs;
939: free(sdup);
940: return 0;
941: }
942:
943: void
944: process_channel_timeouts(struct ssh *ssh, ServerOptions *options)
945: {
946: u_int i, secs;
947: char *type;
948:
949: debug3_f("setting %u timeouts", options->num_channel_timeouts);
950: channel_clear_timeouts(ssh);
951: for (i = 0; i < options->num_channel_timeouts; i++) {
952: if (parse_timeout(options->channel_timeouts[i],
953: &type, &secs) != 0) {
954: fatal_f("internal error: bad timeout %s",
955: options->channel_timeouts[i]);
956: }
957: channel_add_timeout(ssh, type, secs);
958: free(type);
959: }
960: }
961:
1.226 dtucker 962: struct connection_info *
1.346 djm 963: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 964: {
965: static struct connection_info ci;
966:
1.346 djm 967: if (ssh == NULL || !populate)
1.226 dtucker 968: return &ci;
1.286 djm 969: ci.host = auth_get_canonical_hostname(ssh, use_dns);
970: ci.address = ssh_remote_ipaddr(ssh);
971: ci.laddress = ssh_local_ipaddr(ssh);
972: ci.lport = ssh_local_port(ssh);
1.317 djm 973: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 974: return &ci;
975: }
976:
1.153 dtucker 977: /*
978: * The strategy for the Match blocks is that the config file is parsed twice.
979: *
980: * The first time is at startup. activep is initialized to 1 and the
981: * directives in the global context are processed and acted on. Hitting a
982: * Match directive unsets activep and the directives inside the block are
983: * checked for syntax only.
984: *
985: * The second time is after a connection has been established but before
986: * authentication. activep is initialized to 2 and global config directives
987: * are ignored since they have already been processed. If the criteria in a
988: * Match block is met, activep is set and the subsequent directives
989: * processed and actioned until EOF or another Match block unsets it. Any
990: * options set are copied into the main server config.
991: *
992: * Potential additions/improvements:
1.295 djm 993: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 994: *
995: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
996: * Match Address 192.168.0.*
997: * Tag trusted
998: * Match Group wheel
999: * Tag trusted
1000: * Match Tag trusted
1001: * AllowTcpForwarding yes
1002: * GatewayPorts clientspecified
1003: * [...]
1004: *
1005: * - Add a PermittedChannelRequests directive
1006: * Match Group shell
1007: * PermittedChannelRequests session,forwarded-tcpip
1008: */
1009:
1010: static int
1.165 dtucker 1011: match_cfg_line_group(const char *grps, int line, const char *user)
1012: {
1013: int result = 0;
1014: struct passwd *pw;
1015:
1016: if (user == NULL)
1017: goto out;
1018:
1019: if ((pw = getpwnam(user)) == NULL) {
1020: debug("Can't match group at line %d because user %.100s does "
1021: "not exist", line, user);
1022: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
1023: debug("Can't Match group because user %.100s not in any group "
1024: "at line %d", user, line);
1.186 djm 1025: } else if (ga_match_pattern_list(grps) != 1) {
1026: debug("user %.100s does not match group list %.100s at line %d",
1027: user, grps, line);
1.165 dtucker 1028: } else {
1.186 djm 1029: debug("user %.100s matched group list %.100s at line %d", user,
1030: grps, line);
1.165 dtucker 1031: result = 1;
1032: }
1033: out:
1034: ga_free();
1035: return result;
1036: }
1037:
1.319 dtucker 1038: static void
1039: match_test_missing_fatal(const char *criteria, const char *attrib)
1040: {
1041: fatal("'Match %s' in configuration but '%s' not in connection "
1042: "test specification.", criteria, attrib);
1043: }
1044:
1.226 dtucker 1045: /*
1.230 dtucker 1046: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 1047: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 1048: * not match.
1.226 dtucker 1049: */
1.165 dtucker 1050: static int
1.226 dtucker 1051: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 1052: {
1.243 dtucker 1053: int result = 1, attributes = 0, port;
1.153 dtucker 1054: char *arg, *attrib, *cp = *condition;
1055:
1.226 dtucker 1056: if (ci == NULL)
1.153 dtucker 1057: debug3("checking syntax for 'Match %s'", cp);
1058: else
1.226 dtucker 1059: debug3("checking match for '%s' user %s host %s addr %s "
1060: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
1061: ci->host ? ci->host : "(null)",
1062: ci->address ? ci->address : "(null)",
1063: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 1064:
1065: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 1066: /* Terminate on comment */
1067: if (*attrib == '#') {
1068: cp = NULL; /* mark all arguments consumed */
1069: break;
1070: }
1071: arg = NULL;
1.243 dtucker 1072: attributes++;
1.380 djm 1073: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1074: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 1075: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
1076: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1077: error("'all' cannot be combined with other "
1078: "Match attributes");
1079: return -1;
1080: }
1.380 djm 1081: if (arg != NULL && *arg == '#')
1082: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1083: *condition = cp;
1084: return 1;
1085: }
1.380 djm 1086: /* All other criteria require an argument */
1087: if ((arg = strdelim(&cp)) == NULL ||
1088: *arg == '\0' || *arg == '#') {
1.153 dtucker 1089: error("Missing Match criteria for %s", attrib);
1090: return -1;
1091: }
1092: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1093: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1094: result = 0;
1095: continue;
1096: }
1.319 dtucker 1097: if (ci->user == NULL)
1098: match_test_missing_fatal("User", "user");
1.349 dtucker 1099: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1100: result = 0;
1101: else
1102: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1103: "line %d", ci->user, arg, line);
1.165 dtucker 1104: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1105: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1106: result = 0;
1107: continue;
1108: }
1.319 dtucker 1109: if (ci->user == NULL)
1110: match_test_missing_fatal("Group", "user");
1.226 dtucker 1111: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1112: case -1:
1113: return -1;
1114: case 0:
1115: result = 0;
1116: }
1.153 dtucker 1117: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1118: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1119: result = 0;
1120: continue;
1121: }
1.319 dtucker 1122: if (ci->host == NULL)
1123: match_test_missing_fatal("Host", "host");
1.269 djm 1124: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1125: result = 0;
1126: else
1127: debug("connection from %.100s matched 'Host "
1.226 dtucker 1128: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1129: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1130: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1131: if (addr_match_list(NULL, arg) != 0)
1132: fatal("Invalid Match address argument "
1133: "'%s' at line %d", arg, line);
1.226 dtucker 1134: result = 0;
1135: continue;
1136: }
1.319 dtucker 1137: if (ci->address == NULL)
1138: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1139: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1140: case 1:
1141: debug("connection from %.100s matched 'Address "
1.226 dtucker 1142: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1143: break;
1144: case 0:
1.183 djm 1145: case -1:
1.153 dtucker 1146: result = 0;
1.181 djm 1147: break;
1.183 djm 1148: case -2:
1.181 djm 1149: return -1;
1.153 dtucker 1150: }
1.226 dtucker 1151: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1152: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1153: if (addr_match_list(NULL, arg) != 0)
1154: fatal("Invalid Match localaddress "
1155: "argument '%s' at line %d", arg,
1156: line);
1.226 dtucker 1157: result = 0;
1158: continue;
1159: }
1.319 dtucker 1160: if (ci->laddress == NULL)
1161: match_test_missing_fatal("LocalAddress",
1162: "laddr");
1.226 dtucker 1163: switch (addr_match_list(ci->laddress, arg)) {
1164: case 1:
1165: debug("connection from %.100s matched "
1166: "'LocalAddress %.100s' at line %d",
1167: ci->laddress, arg, line);
1168: break;
1169: case 0:
1170: case -1:
1171: result = 0;
1172: break;
1173: case -2:
1174: return -1;
1175: }
1176: } else if (strcasecmp(attrib, "localport") == 0) {
1177: if ((port = a2port(arg)) == -1) {
1178: error("Invalid LocalPort '%s' on Match line",
1179: arg);
1180: return -1;
1181: }
1.351 dtucker 1182: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1183: result = 0;
1184: continue;
1185: }
1.319 dtucker 1186: if (ci->lport == 0)
1187: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1188: /* TODO support port lists */
1189: if (port == ci->lport)
1190: debug("connection from %.100s matched "
1191: "'LocalPort %d' at line %d",
1192: ci->laddress, port, line);
1193: else
1194: result = 0;
1.317 djm 1195: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1196: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1197: result = 0;
1198: continue;
1199: }
1.351 dtucker 1200: if (ci->rdomain == NULL)
1201: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1202: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1203: result = 0;
1204: else
1205: debug("user %.100s matched 'RDomain %.100s' at "
1206: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1207: } else {
1208: error("Unsupported Match attribute %s", attrib);
1209: return -1;
1210: }
1.243 dtucker 1211: }
1212: if (attributes == 0) {
1213: error("One or more attributes required for Match");
1214: return -1;
1.153 dtucker 1215: }
1.226 dtucker 1216: if (ci != NULL)
1.153 dtucker 1217: debug3("match %sfound", result ? "" : "not ");
1218: *condition = cp;
1219: return result;
1220: }
1221:
1.158 dtucker 1222: #define WHITESPACE " \t\r\n"
1223:
1.220 djm 1224: /* Multistate option parsing */
1225: struct multistate {
1226: char *key;
1227: int value;
1228: };
1.320 djm 1229: static const struct multistate multistate_flag[] = {
1230: { "yes", 1 },
1231: { "no", 0 },
1232: { NULL, -1 }
1233: };
1.363 djm 1234: static const struct multistate multistate_ignore_rhosts[] = {
1235: { "yes", IGNORE_RHOSTS_YES },
1236: { "no", IGNORE_RHOSTS_NO },
1237: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1238: { NULL, -1 }
1239: };
1.220 djm 1240: static const struct multistate multistate_addressfamily[] = {
1241: { "inet", AF_INET },
1242: { "inet6", AF_INET6 },
1243: { "any", AF_UNSPEC },
1244: { NULL, -1 }
1245: };
1246: static const struct multistate multistate_permitrootlogin[] = {
1247: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1248: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1249: { "forced-commands-only", PERMIT_FORCED_ONLY },
1250: { "yes", PERMIT_YES },
1251: { "no", PERMIT_NO },
1252: { NULL, -1 }
1253: };
1254: static const struct multistate multistate_compression[] = {
1.359 dtucker 1255: #ifdef WITH_ZLIB
1.337 sf 1256: { "yes", COMP_DELAYED },
1257: { "delayed", COMP_DELAYED },
1.359 dtucker 1258: #endif
1.220 djm 1259: { "no", COMP_NONE },
1260: { NULL, -1 }
1261: };
1262: static const struct multistate multistate_gatewayports[] = {
1263: { "clientspecified", 2 },
1264: { "yes", 1 },
1265: { "no", 0 },
1.222 djm 1266: { NULL, -1 }
1267: };
1.233 djm 1268: static const struct multistate multistate_tcpfwd[] = {
1269: { "yes", FORWARD_ALLOW },
1270: { "all", FORWARD_ALLOW },
1271: { "no", FORWARD_DENY },
1272: { "remote", FORWARD_REMOTE },
1273: { "local", FORWARD_LOCAL },
1274: { NULL, -1 }
1275: };
1.220 djm 1276:
1.360 djm 1277: static int
1278: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1279: const char *filename, int linenum, int *activep,
1.365 djm 1280: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1281: struct include_list *includes)
1.1 deraadt 1282: {
1.383 dtucker 1283: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.360 djm 1284: int cmdline = 0, *intptr, value, value2, n, port, oactive, r, found;
1.174 dtucker 1285: SyslogFacility *log_facility_ptr;
1286: LogLevel *log_level_ptr;
1.25 markus 1287: ServerOpCodes opcode;
1.329 djm 1288: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1289: size_t len;
1.237 dtucker 1290: long long val64;
1.220 djm 1291: const struct multistate *multistate_ptr;
1.322 dtucker 1292: const char *errstr;
1.360 djm 1293: struct include_item *item;
1294: glob_t gbuf;
1.380 djm 1295: char **oav = NULL, **av;
1296: int oac = 0, ac;
1297: int ret = -1;
1.303 djm 1298:
1299: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1300: if ((len = strlen(line)) == 0)
1301: return 0;
1302: for (len--; len > 0; len--) {
1303: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1304: break;
1305: line[len] = '\0';
1306: }
1.25 markus 1307:
1.380 djm 1308: str = line;
1309: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1310: return 0;
1.94 markus 1311: /* Ignore leading whitespace */
1.380 djm 1312: if (*keyword == '\0')
1313: keyword = strdelim(&str);
1314: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1315: return 0;
1.380 djm 1316: if (str == NULL || *str == '\0') {
1317: error("%s line %d: no argument after keyword \"%s\"",
1318: filename, linenum, keyword);
1319: return -1;
1320: }
1.94 markus 1321: intptr = NULL;
1322: charptr = NULL;
1.380 djm 1323: opcode = parse_token(keyword, filename, linenum, &flags);
1324:
1325: if (argv_split(str, &oac, &oav, 1) != 0) {
1326: error("%s line %d: invalid quotes", filename, linenum);
1327: return -1;
1328: }
1329: ac = oac;
1330: av = oav;
1.153 dtucker 1331:
1332: if (activep == NULL) { /* We are processing a command line directive */
1333: cmdline = 1;
1334: activep = &cmdline;
1335: }
1.360 djm 1336: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1337: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1338: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1339: if (connectinfo == NULL) {
1.153 dtucker 1340: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1341: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1342: } else { /* this is a directive we have already processed */
1.380 djm 1343: ret = 0;
1344: goto out;
1.153 dtucker 1345: }
1346: }
1347:
1.94 markus 1348: switch (opcode) {
1349: case sBadOption:
1.380 djm 1350: goto out;
1.94 markus 1351: case sPort:
1352: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1353: if (options->ports_from_cmdline) {
1354: argv_consume(&ac);
1355: break;
1356: }
1.94 markus 1357: if (options->num_ports >= MAX_PORTS)
1358: fatal("%s line %d: too many ports.",
1359: filename, linenum);
1.380 djm 1360: arg = argv_next(&ac, &av);
1.94 markus 1361: if (!arg || *arg == '\0')
1362: fatal("%s line %d: missing port number.",
1363: filename, linenum);
1364: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1365: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1366: fatal("%s line %d: Badly formatted port number.",
1367: filename, linenum);
1368: break;
1.29 markus 1369:
1.94 markus 1370: case sLoginGraceTime:
1371: intptr = &options->login_grace_time;
1.180 djm 1372: parse_time:
1.380 djm 1373: arg = argv_next(&ac, &av);
1.94 markus 1374: if (!arg || *arg == '\0')
1375: fatal("%s line %d: missing time value.",
1376: filename, linenum);
1377: if ((value = convtime(arg)) == -1)
1378: fatal("%s line %d: invalid time value.",
1379: filename, linenum);
1.268 djm 1380: if (*activep && *intptr == -1)
1.94 markus 1381: *intptr = value;
1382: break;
1383:
1384: case sListenAddress:
1.380 djm 1385: arg = argv_next(&ac, &av);
1.139 djm 1386: if (arg == NULL || *arg == '\0')
1387: fatal("%s line %d: missing address",
1.94 markus 1388: filename, linenum);
1.144 dtucker 1389: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1390: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1391: && strchr(p+1, ':') != NULL) {
1.315 djm 1392: port = 0;
1393: p = arg;
1394: } else {
1.347 dtucker 1395: arg2 = NULL;
1.383 dtucker 1396: p = hpdelim(&arg);
1397: if (p == NULL)
1.315 djm 1398: fatal("%s line %d: bad address:port usage",
1399: filename, linenum);
1400: p = cleanhostname(p);
1401: if (arg == NULL)
1402: port = 0;
1403: else if ((port = a2port(arg)) <= 0)
1404: fatal("%s line %d: bad port number",
1405: filename, linenum);
1406: }
1407: /* Optional routing table */
1408: arg2 = NULL;
1.380 djm 1409: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1410: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1411: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1412: fatal("%s line %d: bad ListenAddress syntax",
1413: filename, linenum);
1414: if (!valid_rdomain(arg2))
1415: fatal("%s line %d: bad routing domain",
1416: filename, linenum);
1.144 dtucker 1417: }
1.315 djm 1418: queue_listen_addr(options, p, arg2, port);
1.25 markus 1419:
1.138 djm 1420: break;
1421:
1422: case sAddressFamily:
1.220 djm 1423: intptr = &options->address_family;
1424: multistate_ptr = multistate_addressfamily;
1425: parse_multistate:
1.380 djm 1426: arg = argv_next(&ac, &av);
1.141 markus 1427: if (!arg || *arg == '\0')
1.220 djm 1428: fatal("%s line %d: missing argument.",
1.141 markus 1429: filename, linenum);
1.220 djm 1430: value = -1;
1431: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1432: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1433: value = multistate_ptr[i].value;
1434: break;
1435: }
1436: }
1437: if (value == -1)
1438: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1439: filename, linenum, arg);
1.220 djm 1440: if (*activep && *intptr == -1)
1.138 djm 1441: *intptr = value;
1.94 markus 1442: break;
1443:
1444: case sHostKeyFile:
1.380 djm 1445: arg = argv_next(&ac, &av);
1.94 markus 1446: if (!arg || *arg == '\0')
1447: fatal("%s line %d: missing file name.",
1448: filename, linenum);
1.344 djm 1449: if (*activep) {
1450: servconf_add_hostkey(filename, linenum,
1451: options, arg, 1);
1452: }
1.94 markus 1453: break;
1.76 stevesk 1454:
1.240 markus 1455: case sHostKeyAgent:
1456: charptr = &options->host_key_agent;
1.380 djm 1457: arg = argv_next(&ac, &av);
1.240 markus 1458: if (!arg || *arg == '\0')
1459: fatal("%s line %d: missing socket name.",
1460: filename, linenum);
1461: if (*activep && *charptr == NULL)
1462: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1463: xstrdup(arg) : derelativise_path(arg);
1464: break;
1465:
1.203 djm 1466: case sHostCertificate:
1.380 djm 1467: arg = argv_next(&ac, &av);
1.314 djm 1468: if (!arg || *arg == '\0')
1469: fatal("%s line %d: missing file name.",
1470: filename, linenum);
1471: if (*activep)
1472: servconf_add_hostcert(filename, linenum, options, arg);
1473: break;
1.203 djm 1474:
1.94 markus 1475: case sPidFile:
1476: charptr = &options->pid_file;
1.314 djm 1477: parse_filename:
1.380 djm 1478: arg = argv_next(&ac, &av);
1.314 djm 1479: if (!arg || *arg == '\0')
1480: fatal("%s line %d: missing file name.",
1481: filename, linenum);
1482: if (*activep && *charptr == NULL) {
1483: *charptr = derelativise_path(arg);
1484: /* increase optional counter */
1485: if (intptr != NULL)
1486: *intptr = *intptr + 1;
1487: }
1488: break;
1.25 markus 1489:
1.378 dtucker 1490: case sModuliFile:
1491: charptr = &options->moduli_file;
1492: goto parse_filename;
1493:
1.94 markus 1494: case sPermitRootLogin:
1495: intptr = &options->permit_root_login;
1.220 djm 1496: multistate_ptr = multistate_permitrootlogin;
1497: goto parse_multistate;
1.36 markus 1498:
1.94 markus 1499: case sIgnoreRhosts:
1500: intptr = &options->ignore_rhosts;
1.363 djm 1501: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1502: goto parse_multistate;
1.94 markus 1503:
1504: case sIgnoreUserKnownHosts:
1505: intptr = &options->ignore_user_known_hosts;
1.363 djm 1506: parse_flag:
1507: multistate_ptr = multistate_flag;
1508: goto parse_multistate;
1.94 markus 1509:
1510: case sHostbasedAuthentication:
1511: intptr = &options->hostbased_authentication;
1512: goto parse_flag;
1513:
1514: case sHostbasedUsesNameFromPacketOnly:
1515: intptr = &options->hostbased_uses_name_from_packet_only;
1516: goto parse_flag;
1517:
1.375 dtucker 1518: case sHostbasedAcceptedAlgorithms:
1519: charptr = &options->hostbased_accepted_algos;
1.374 dtucker 1520: parse_pubkey_algos:
1.380 djm 1521: arg = argv_next(&ac, &av);
1.258 djm 1522: if (!arg || *arg == '\0')
1523: fatal("%s line %d: Missing argument.",
1524: filename, linenum);
1.304 djm 1525: if (*arg != '-' &&
1.352 naddy 1526: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1527: arg + 1 : arg, 1))
1.258 djm 1528: fatal("%s line %d: Bad key types '%s'.",
1529: filename, linenum, arg ? arg : "<NONE>");
1530: if (*activep && *charptr == NULL)
1531: *charptr = xstrdup(arg);
1532: break;
1533:
1.276 markus 1534: case sHostKeyAlgorithms:
1535: charptr = &options->hostkeyalgorithms;
1.374 dtucker 1536: goto parse_pubkey_algos;
1.276 markus 1537:
1.341 djm 1538: case sCASignatureAlgorithms:
1539: charptr = &options->ca_sign_algorithms;
1.374 dtucker 1540: goto parse_pubkey_algos;
1.341 djm 1541:
1.94 markus 1542: case sPubkeyAuthentication:
1543: intptr = &options->pubkey_authentication;
1544: goto parse_flag;
1.119 jakob 1545:
1.374 dtucker 1546: case sPubkeyAcceptedAlgorithms:
1547: charptr = &options->pubkey_accepted_algos;
1548: goto parse_pubkey_algos;
1.258 djm 1549:
1.354 djm 1550: case sPubkeyAuthOptions:
1551: intptr = &options->pubkey_auth_options;
1552: value = 0;
1.380 djm 1553: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1554: if (strcasecmp(arg, "none") == 0)
1555: continue;
1556: if (strcasecmp(arg, "touch-required") == 0)
1557: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1558: else if (strcasecmp(arg, "verify-required") == 0)
1559: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1560: else {
1.380 djm 1561: error("%s line %d: unsupported %s option %s",
1562: filename, linenum, keyword, arg);
1563: goto out;
1.354 djm 1564: }
1565: }
1566: if (*activep && *intptr == -1)
1567: *intptr = value;
1568: break;
1569:
1.94 markus 1570: case sKerberosAuthentication:
1571: intptr = &options->kerberos_authentication;
1572: goto parse_flag;
1573:
1574: case sKerberosOrLocalPasswd:
1575: intptr = &options->kerberos_or_local_passwd;
1576: goto parse_flag;
1577:
1578: case sKerberosTicketCleanup:
1579: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1580: goto parse_flag;
1581:
1582: case sKerberosGetAFSToken:
1583: intptr = &options->kerberos_get_afs_token;
1.125 markus 1584: goto parse_flag;
1585:
1586: case sGssAuthentication:
1587: intptr = &options->gss_authentication;
1588: goto parse_flag;
1589:
1590: case sGssCleanupCreds:
1591: intptr = &options->gss_cleanup_creds;
1.271 djm 1592: goto parse_flag;
1593:
1594: case sGssStrictAcceptor:
1595: intptr = &options->gss_strict_acceptor;
1.94 markus 1596: goto parse_flag;
1597:
1598: case sPasswordAuthentication:
1599: intptr = &options->password_authentication;
1600: goto parse_flag;
1601:
1602: case sKbdInteractiveAuthentication:
1603: intptr = &options->kbd_interactive_authentication;
1604: goto parse_flag;
1605:
1606: case sPrintMotd:
1607: intptr = &options->print_motd;
1608: goto parse_flag;
1609:
1610: case sPrintLastLog:
1611: intptr = &options->print_lastlog;
1612: goto parse_flag;
1613:
1614: case sX11Forwarding:
1615: intptr = &options->x11_forwarding;
1616: goto parse_flag;
1617:
1618: case sX11DisplayOffset:
1619: intptr = &options->x11_display_offset;
1.293 naddy 1620: parse_int:
1.380 djm 1621: arg = argv_next(&ac, &av);
1.322 dtucker 1622: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1623: fatal("%s line %d: %s integer value %s.",
1624: filename, linenum, keyword, errstr);
1.293 naddy 1625: if (*activep && *intptr == -1)
1626: *intptr = value;
1627: break;
1.99 stevesk 1628:
1629: case sX11UseLocalhost:
1630: intptr = &options->x11_use_localhost;
1631: goto parse_flag;
1.94 markus 1632:
1633: case sXAuthLocation:
1634: charptr = &options->xauth_location;
1635: goto parse_filename;
1636:
1.244 djm 1637: case sPermitTTY:
1638: intptr = &options->permit_tty;
1639: goto parse_flag;
1640:
1.250 djm 1641: case sPermitUserRC:
1642: intptr = &options->permit_user_rc;
1643: goto parse_flag;
1644:
1.94 markus 1645: case sStrictModes:
1646: intptr = &options->strict_modes;
1647: goto parse_flag;
1648:
1.129 markus 1649: case sTCPKeepAlive:
1650: intptr = &options->tcp_keep_alive;
1.94 markus 1651: goto parse_flag;
1652:
1653: case sEmptyPasswd:
1654: intptr = &options->permit_empty_passwd;
1.113 markus 1655: goto parse_flag;
1656:
1657: case sPermitUserEnvironment:
1658: intptr = &options->permit_user_env;
1.367 djm 1659: charptr = &options->permit_user_env_allowlist;
1.380 djm 1660: arg = argv_next(&ac, &av);
1.334 djm 1661: if (!arg || *arg == '\0')
1.380 djm 1662: fatal("%s line %d: %s missing argument.",
1663: filename, linenum, keyword);
1.334 djm 1664: value = 0;
1665: p = NULL;
1666: if (strcmp(arg, "yes") == 0)
1667: value = 1;
1668: else if (strcmp(arg, "no") == 0)
1669: value = 0;
1670: else {
1671: /* Pattern-list specified */
1672: value = 1;
1673: p = xstrdup(arg);
1674: }
1675: if (*activep && *intptr == -1) {
1676: *intptr = value;
1677: *charptr = p;
1678: p = NULL;
1679: }
1680: free(p);
1681: break;
1.94 markus 1682:
1.111 markus 1683: case sCompression:
1684: intptr = &options->compression;
1.220 djm 1685: multistate_ptr = multistate_compression;
1686: goto parse_multistate;
1.94 markus 1687:
1.235 dtucker 1688: case sRekeyLimit:
1.380 djm 1689: arg = argv_next(&ac, &av);
1.235 dtucker 1690: if (!arg || *arg == '\0')
1.380 djm 1691: fatal("%s line %d: %s missing argument.",
1692: filename, linenum, keyword);
1.235 dtucker 1693: if (strcmp(arg, "default") == 0) {
1694: val64 = 0;
1695: } else {
1.236 dtucker 1696: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1697: fatal("%.200s line %d: Bad %s number '%s': %s",
1698: filename, linenum, keyword,
1699: arg, strerror(errno));
1.235 dtucker 1700: if (val64 != 0 && val64 < 16)
1.380 djm 1701: fatal("%.200s line %d: %s too small",
1702: filename, linenum, keyword);
1.235 dtucker 1703: }
1704: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1705: options->rekey_limit = val64;
1.380 djm 1706: if (ac != 0) { /* optional rekey interval present */
1707: if (strcmp(av[0], "none") == 0) {
1708: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1709: break;
1710: }
1711: intptr = &options->rekey_interval;
1712: goto parse_time;
1713: }
1714: break;
1715:
1.94 markus 1716: case sGatewayPorts:
1.251 millert 1717: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1718: multistate_ptr = multistate_gatewayports;
1719: goto parse_multistate;
1.25 markus 1720:
1.122 markus 1721: case sUseDNS:
1722: intptr = &options->use_dns;
1.94 markus 1723: goto parse_flag;
1.53 markus 1724:
1.94 markus 1725: case sLogFacility:
1.174 dtucker 1726: log_facility_ptr = &options->log_facility;
1.380 djm 1727: arg = argv_next(&ac, &av);
1.94 markus 1728: value = log_facility_number(arg);
1.101 markus 1729: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1730: fatal("%.200s line %d: unsupported log facility '%s'",
1731: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1732: if (*log_facility_ptr == -1)
1733: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1734: break;
1.25 markus 1735:
1.94 markus 1736: case sLogLevel:
1.174 dtucker 1737: log_level_ptr = &options->log_level;
1.380 djm 1738: arg = argv_next(&ac, &av);
1.94 markus 1739: value = log_level_number(arg);
1.101 markus 1740: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1741: fatal("%.200s line %d: unsupported log level '%s'",
1742: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1743: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1744: *log_level_ptr = (LogLevel) value;
1.94 markus 1745: break;
1746:
1.370 djm 1747: case sLogVerbose:
1.380 djm 1748: found = options->num_log_verbose == 0;
1749: i = 0;
1750: while ((arg = argv_next(&ac, &av)) != NULL) {
1751: if (*arg == '\0') {
1752: error("%s line %d: keyword %s empty argument",
1753: filename, linenum, keyword);
1754: goto out;
1755: }
1756: /* Allow "none" only in first position */
1757: if (strcasecmp(arg, "none") == 0) {
1758: if (i > 0 || ac > 0) {
1759: error("%s line %d: keyword %s \"none\" "
1760: "argument must appear alone.",
1761: filename, linenum, keyword);
1762: goto out;
1763: }
1764: }
1765: i++;
1766: if (!found || !*activep)
1.370 djm 1767: continue;
1.380 djm 1768: opt_array_append(filename, linenum, keyword,
1.370 djm 1769: &options->log_verbose, &options->num_log_verbose,
1770: arg);
1771: }
1772: break;
1773:
1.94 markus 1774: case sAllowTcpForwarding:
1775: intptr = &options->allow_tcp_forwarding;
1.233 djm 1776: multistate_ptr = multistate_tcpfwd;
1777: goto parse_multistate;
1.102 provos 1778:
1.251 millert 1779: case sAllowStreamLocalForwarding:
1780: intptr = &options->allow_streamlocal_forwarding;
1781: multistate_ptr = multistate_tcpfwd;
1782: goto parse_multistate;
1783:
1.178 pyr 1784: case sAllowAgentForwarding:
1785: intptr = &options->allow_agent_forwarding;
1786: goto parse_flag;
1787:
1.301 djm 1788: case sDisableForwarding:
1789: intptr = &options->disable_forwarding;
1790: goto parse_flag;
1791:
1.94 markus 1792: case sAllowUsers:
1.380 djm 1793: chararrayptr = &options->allow_users;
1794: uintptr = &options->num_allow_users;
1795: parse_allowdenyusers:
1796: while ((arg = argv_next(&ac, &av)) != NULL) {
1797: if (*arg == '\0' ||
1798: match_user(NULL, NULL, NULL, arg) == -1)
1799: fatal("%s line %d: invalid %s pattern: \"%s\"",
1800: filename, linenum, keyword, arg);
1.227 markus 1801: if (!*activep)
1802: continue;
1.380 djm 1803: opt_array_append(filename, linenum, keyword,
1804: chararrayptr, uintptr, arg);
1.94 markus 1805: }
1806: break;
1.25 markus 1807:
1.94 markus 1808: case sDenyUsers:
1.380 djm 1809: chararrayptr = &options->deny_users;
1810: uintptr = &options->num_deny_users;
1811: goto parse_allowdenyusers;
1.25 markus 1812:
1.94 markus 1813: case sAllowGroups:
1.380 djm 1814: chararrayptr = &options->allow_groups;
1815: uintptr = &options->num_allow_groups;
1816: parse_allowdenygroups:
1817: while ((arg = argv_next(&ac, &av)) != NULL) {
1818: if (*arg == '\0')
1819: fatal("%s line %d: empty %s pattern",
1820: filename, linenum, keyword);
1.227 markus 1821: if (!*activep)
1822: continue;
1.380 djm 1823: opt_array_append(filename, linenum, keyword,
1824: chararrayptr, uintptr, arg);
1.94 markus 1825: }
1826: break;
1.33 markus 1827:
1.94 markus 1828: case sDenyGroups:
1.380 djm 1829: chararrayptr = &options->deny_groups;
1830: uintptr = &options->num_deny_groups;
1831: goto parse_allowdenygroups;
1.66 markus 1832:
1.94 markus 1833: case sCiphers:
1.380 djm 1834: arg = argv_next(&ac, &av);
1.94 markus 1835: if (!arg || *arg == '\0')
1.380 djm 1836: fatal("%s line %d: %s missing argument.",
1837: filename, linenum, keyword);
1.352 naddy 1838: if (*arg != '-' &&
1839: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1840: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1841: filename, linenum, arg ? arg : "<NONE>");
1842: if (options->ciphers == NULL)
1843: options->ciphers = xstrdup(arg);
1844: break;
1.33 markus 1845:
1.94 markus 1846: case sMacs:
1.380 djm 1847: arg = argv_next(&ac, &av);
1.94 markus 1848: if (!arg || *arg == '\0')
1.380 djm 1849: fatal("%s line %d: %s missing argument.",
1850: filename, linenum, keyword);
1.352 naddy 1851: if (*arg != '-' &&
1852: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1853: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1854: filename, linenum, arg ? arg : "<NONE>");
1855: if (options->macs == NULL)
1856: options->macs = xstrdup(arg);
1.211 djm 1857: break;
1858:
1859: case sKexAlgorithms:
1.380 djm 1860: arg = argv_next(&ac, &av);
1.211 djm 1861: if (!arg || *arg == '\0')
1.380 djm 1862: fatal("%s line %d: %s missing argument.",
1863: filename, linenum, keyword);
1.304 djm 1864: if (*arg != '-' &&
1.352 naddy 1865: !kex_names_valid(*arg == '+' || *arg == '^' ?
1866: arg + 1 : arg))
1.211 djm 1867: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1868: filename, linenum, arg ? arg : "<NONE>");
1869: if (options->kex_algorithms == NULL)
1870: options->kex_algorithms = xstrdup(arg);
1.94 markus 1871: break;
1.43 jakob 1872:
1.94 markus 1873: case sSubsystem:
1874: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1875: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1876: filename, linenum);
1.94 markus 1877: }
1.380 djm 1878: arg = argv_next(&ac, &av);
1.94 markus 1879: if (!arg || *arg == '\0')
1.380 djm 1880: fatal("%s line %d: %s missing argument.",
1881: filename, linenum, keyword);
1.153 dtucker 1882: if (!*activep) {
1.380 djm 1883: arg = argv_next(&ac, &av);
1.153 dtucker 1884: break;
1885: }
1.94 markus 1886: for (i = 0; i < options->num_subsystems; i++)
1887: if (strcmp(arg, options->subsystem_name[i]) == 0)
1.380 djm 1888: fatal("%s line %d: Subsystem '%s' "
1889: "already defined.", filename, linenum, arg);
1.94 markus 1890: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1891: arg = argv_next(&ac, &av);
1.94 markus 1892: if (!arg || *arg == '\0')
1893: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1894: filename, linenum);
1.94 markus 1895: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1896:
1897: /* Collect arguments (separate to executable) */
1898: p = xstrdup(arg);
1899: len = strlen(p) + 1;
1.380 djm 1900: while ((arg = argv_next(&ac, &av)) != NULL) {
1.151 djm 1901: len += 1 + strlen(arg);
1.264 deraadt 1902: p = xreallocarray(p, 1, len);
1.151 djm 1903: strlcat(p, " ", len);
1904: strlcat(p, arg, len);
1905: }
1906: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1907: options->num_subsystems++;
1908: break;
1.46 markus 1909:
1.94 markus 1910: case sMaxStartups:
1.380 djm 1911: arg = argv_next(&ac, &av);
1.94 markus 1912: if (!arg || *arg == '\0')
1.380 djm 1913: fatal("%s line %d: %s missing argument.",
1914: filename, linenum, keyword);
1.94 markus 1915: if ((n = sscanf(arg, "%d:%d:%d",
1916: &options->max_startups_begin,
1917: &options->max_startups_rate,
1918: &options->max_startups)) == 3) {
1919: if (options->max_startups_begin >
1920: options->max_startups ||
1921: options->max_startups_rate > 100 ||
1922: options->max_startups_rate < 1)
1.380 djm 1923: fatal("%s line %d: Invalid %s spec.",
1924: filename, linenum, keyword);
1.94 markus 1925: } else if (n != 1)
1.380 djm 1926: fatal("%s line %d: Invalid %s spec.",
1927: filename, linenum, keyword);
1.94 markus 1928: else
1929: options->max_startups = options->max_startups_begin;
1.387 dtucker 1930: if (options->max_startups <= 0 ||
1931: options->max_startups_begin <= 0)
1932: fatal("%s line %d: Invalid %s spec.",
1933: filename, linenum, keyword);
1.94 markus 1934: break;
1.133 dtucker 1935:
1.372 dtucker 1936: case sPerSourceNetBlockSize:
1.380 djm 1937: arg = argv_next(&ac, &av);
1.372 dtucker 1938: if (!arg || *arg == '\0')
1.380 djm 1939: fatal("%s line %d: %s missing argument.",
1940: filename, linenum, keyword);
1.372 dtucker 1941: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1942: case 2:
1943: if (value2 < 0 || value2 > 128)
1944: n = -1;
1945: /* FALLTHROUGH */
1946: case 1:
1947: if (value < 0 || value > 32)
1948: n = -1;
1949: }
1950: if (n != 1 && n != 2)
1.380 djm 1951: fatal("%s line %d: Invalid %s spec.",
1952: filename, linenum, keyword);
1.372 dtucker 1953: if (*activep) {
1954: options->per_source_masklen_ipv4 = value;
1955: options->per_source_masklen_ipv6 = value2;
1956: }
1957: break;
1958:
1959: case sPerSourceMaxStartups:
1.380 djm 1960: arg = argv_next(&ac, &av);
1.372 dtucker 1961: if (!arg || *arg == '\0')
1.380 djm 1962: fatal("%s line %d: %s missing argument.",
1963: filename, linenum, keyword);
1.372 dtucker 1964: if (strcmp(arg, "none") == 0) { /* no limit */
1965: value = INT_MAX;
1966: } else {
1967: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1968: fatal("%s line %d: %s integer value %s.",
1969: filename, linenum, keyword, errstr);
1.372 dtucker 1970: }
1971: if (*activep)
1972: options->per_source_max_startups = value;
1973: break;
1974:
1.133 dtucker 1975: case sMaxAuthTries:
1976: intptr = &options->max_authtries;
1977: goto parse_int;
1.94 markus 1978:
1.180 djm 1979: case sMaxSessions:
1980: intptr = &options->max_sessions;
1981: goto parse_int;
1982:
1.94 markus 1983: case sBanner:
1984: charptr = &options->banner;
1985: goto parse_filename;
1.176 djm 1986:
1.94 markus 1987: /*
1988: * These options can contain %X options expanded at
1989: * connect time, so that you can specify paths like:
1990: *
1991: * AuthorizedKeysFile /etc/ssh_keys/%u
1992: */
1993: case sAuthorizedKeysFile:
1.380 djm 1994: uvalue = options->num_authkeys_files;
1995: while ((arg = argv_next(&ac, &av)) != NULL) {
1996: if (*arg == '\0') {
1997: error("%s line %d: keyword %s empty argument",
1998: filename, linenum, keyword);
1999: goto out;
2000: }
2001: arg2 = tilde_expand_filename(arg, getuid());
2002: if (*activep && uvalue == 0) {
2003: opt_array_append(filename, linenum, keyword,
1.314 djm 2004: &options->authorized_keys_files,
1.380 djm 2005: &options->num_authkeys_files, arg2);
1.219 djm 2006: }
1.380 djm 2007: free(arg2);
1.219 djm 2008: }
1.380 djm 2009: break;
1.219 djm 2010:
1.208 djm 2011: case sAuthorizedPrincipalsFile:
2012: charptr = &options->authorized_principals_file;
1.380 djm 2013: arg = argv_next(&ac, &av);
1.205 djm 2014: if (!arg || *arg == '\0')
1.380 djm 2015: fatal("%s line %d: %s missing argument.",
2016: filename, linenum, keyword);
1.205 djm 2017: if (*activep && *charptr == NULL) {
1.206 markus 2018: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 2019: /* increase optional counter */
2020: if (intptr != NULL)
2021: *intptr = *intptr + 1;
2022: }
2023: break;
1.94 markus 2024:
2025: case sClientAliveInterval:
2026: intptr = &options->client_alive_interval;
2027: goto parse_time;
2028:
2029: case sClientAliveCountMax:
2030: intptr = &options->client_alive_count_max;
2031: goto parse_int;
1.131 djm 2032:
2033: case sAcceptEnv:
1.380 djm 2034: while ((arg = argv_next(&ac, &av)) != NULL) {
2035: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 2036: fatal("%s line %d: Invalid environment name.",
2037: filename, linenum);
1.153 dtucker 2038: if (!*activep)
1.227 markus 2039: continue;
1.380 djm 2040: opt_array_append(filename, linenum, keyword,
1.314 djm 2041: &options->accept_env, &options->num_accept_env,
2042: arg);
1.131 djm 2043: }
2044: break;
1.145 reyk 2045:
1.332 djm 2046: case sSetEnv:
2047: uvalue = options->num_setenv;
1.380 djm 2048: while ((arg = argv_next(&ac, &av)) != NULL) {
2049: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 2050: fatal("%s line %d: Invalid environment.",
2051: filename, linenum);
2052: if (!*activep || uvalue != 0)
2053: continue;
1.385 djm 2054: if (lookup_setenv_in_list(arg, options->setenv,
2055: options->num_setenv) != NULL) {
2056: debug2("%s line %d: ignoring duplicate env "
2057: "name \"%.64s\"", filename, linenum, arg);
2058: continue;
2059: }
1.380 djm 2060: opt_array_append(filename, linenum, keyword,
1.332 djm 2061: &options->setenv, &options->num_setenv, arg);
2062: }
2063: break;
2064:
1.145 reyk 2065: case sPermitTunnel:
2066: intptr = &options->permit_tun;
1.380 djm 2067: arg = argv_next(&ac, &av);
1.146 reyk 2068: if (!arg || *arg == '\0')
1.380 djm 2069: fatal("%s line %d: %s missing argument.",
2070: filename, linenum, keyword);
1.182 dtucker 2071: value = -1;
2072: for (i = 0; tunmode_desc[i].val != -1; i++)
2073: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2074: value = tunmode_desc[i].val;
2075: break;
2076: }
2077: if (value == -1)
1.380 djm 2078: fatal("%s line %d: bad %s argument %s",
2079: filename, linenum, keyword, arg);
1.268 djm 2080: if (*activep && *intptr == -1)
1.146 reyk 2081: *intptr = value;
2082: break;
1.94 markus 2083:
1.360 djm 2084: case sInclude:
2085: if (cmdline) {
2086: fatal("Include directive not supported as a "
2087: "command-line option");
2088: }
2089: value = 0;
1.380 djm 2090: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2091: if (*arg2 == '\0') {
2092: error("%s line %d: keyword %s empty argument",
2093: filename, linenum, keyword);
2094: goto out;
2095: }
1.360 djm 2096: value++;
2097: found = 0;
2098: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2099: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2100: } else
2101: arg = xstrdup(arg2);
2102:
2103: /*
2104: * Don't let included files clobber the containing
2105: * file's Match state.
2106: */
2107: oactive = *activep;
2108:
2109: /* consult cache of include files */
2110: TAILQ_FOREACH(item, includes, entry) {
2111: if (strcmp(item->selector, arg) != 0)
2112: continue;
2113: if (item->filename != NULL) {
2114: parse_server_config_depth(options,
2115: item->filename, item->contents,
2116: includes, connectinfo,
1.365 djm 2117: (*inc_flags & SSHCFG_MATCH_ONLY
2118: ? SSHCFG_MATCH_ONLY : (oactive
2119: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2120: activep, depth + 1);
2121: }
2122: found = 1;
2123: *activep = oactive;
2124: }
2125: if (found != 0) {
2126: free(arg);
2127: continue;
2128: }
2129:
2130: /* requested glob was not in cache */
2131: debug2("%s line %d: new include %s",
2132: filename, linenum, arg);
2133: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2134: if (r != GLOB_NOMATCH) {
1.380 djm 2135: fatal("%s line %d: include \"%s\" glob "
2136: "failed", filename, linenum, arg);
1.360 djm 2137: }
2138: /*
2139: * If no entry matched then record a
2140: * placeholder to skip later glob calls.
2141: */
2142: debug2("%s line %d: no match for %s",
2143: filename, linenum, arg);
2144: item = xcalloc(1, sizeof(*item));
2145: item->selector = strdup(arg);
2146: TAILQ_INSERT_TAIL(includes,
2147: item, entry);
2148: }
2149: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2150: fatal_f("too many glob results");
1.360 djm 2151: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2152: debug2("%s line %d: including %s",
2153: filename, linenum, gbuf.gl_pathv[n]);
2154: item = xcalloc(1, sizeof(*item));
2155: item->selector = strdup(arg);
2156: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2157: if ((item->contents = sshbuf_new()) == NULL)
2158: fatal_f("sshbuf_new failed");
1.360 djm 2159: load_server_config(item->filename,
2160: item->contents);
2161: parse_server_config_depth(options,
2162: item->filename, item->contents,
2163: includes, connectinfo,
1.365 djm 2164: (*inc_flags & SSHCFG_MATCH_ONLY
2165: ? SSHCFG_MATCH_ONLY : (oactive
2166: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2167: activep, depth + 1);
2168: *activep = oactive;
2169: TAILQ_INSERT_TAIL(includes, item, entry);
2170: }
2171: globfree(&gbuf);
2172: free(arg);
2173: }
2174: if (value == 0) {
1.380 djm 2175: fatal("%s line %d: %s missing filename argument",
2176: filename, linenum, keyword);
1.360 djm 2177: }
2178: break;
2179:
1.153 dtucker 2180: case sMatch:
2181: if (cmdline)
2182: fatal("Match directive not supported as a command-line "
1.379 djm 2183: "option");
1.380 djm 2184: value = match_cfg_line(&str, linenum,
1.365 djm 2185: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2186: if (value < 0)
2187: fatal("%s line %d: Bad Match condition", filename,
2188: linenum);
1.365 djm 2189: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2190: /*
2191: * The MATCH_ONLY flag is applicable only until the first
2192: * match block.
2193: */
1.365 djm 2194: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2195: /*
2196: * If match_cfg_line() didn't consume all its arguments then
2197: * arrange for the extra arguments check below to fail.
2198: */
2199: if (str == NULL || *str == '\0')
2200: argv_consume(&ac);
1.156 dtucker 2201: break;
2202:
1.330 djm 2203: case sPermitListen:
1.156 dtucker 2204: case sPermitOpen:
1.330 djm 2205: if (opcode == sPermitListen) {
2206: uintptr = &options->num_permitted_listens;
2207: chararrayptr = &options->permitted_listens;
1.329 djm 2208: } else {
2209: uintptr = &options->num_permitted_opens;
2210: chararrayptr = &options->permitted_opens;
2211: }
1.380 djm 2212: arg = argv_next(&ac, &av);
1.156 dtucker 2213: if (!arg || *arg == '\0')
1.380 djm 2214: fatal("%s line %d: %s missing argument.",
2215: filename, linenum, keyword);
1.329 djm 2216: uvalue = *uintptr; /* modified later */
1.310 djm 2217: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 2218: if (*activep && uvalue == 0) {
2219: *uintptr = 1;
2220: *chararrayptr = xcalloc(1,
2221: sizeof(**chararrayptr));
2222: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 2223: }
1.156 dtucker 2224: break;
2225: }
1.380 djm 2226: for (; arg != NULL && *arg != '\0'; arg = argv_next(&ac, &av)) {
1.333 djm 2227: if (opcode == sPermitListen &&
2228: strchr(arg, ':') == NULL) {
2229: /*
2230: * Allow bare port number for PermitListen
2231: * to indicate a wildcard listen host.
2232: */
2233: xasprintf(&arg2, "*:%s", arg);
2234: } else {
2235: arg2 = xstrdup(arg);
1.383 dtucker 2236: p = hpdelim(&arg);
2237: if (p == NULL) {
1.380 djm 2238: fatal("%s line %d: %s missing host",
2239: filename, linenum, keyword);
1.333 djm 2240: }
2241: p = cleanhostname(p);
1.329 djm 2242: }
2243: if (arg == NULL ||
2244: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2245: fatal("%s line %d: %s bad port number",
2246: filename, linenum, keyword);
1.329 djm 2247: }
2248: if (*activep && uvalue == 0) {
1.380 djm 2249: opt_array_append(filename, linenum, keyword,
1.329 djm 2250: chararrayptr, uintptr, arg2);
1.314 djm 2251: }
2252: free(arg2);
1.159 dtucker 2253: }
1.153 dtucker 2254: break;
2255:
1.158 dtucker 2256: case sForceCommand:
1.380 djm 2257: if (str == NULL || *str == '\0')
2258: fatal("%s line %d: %s missing argument.",
2259: filename, linenum, keyword);
2260: len = strspn(str, WHITESPACE);
1.158 dtucker 2261: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2262: options->adm_forced_command = xstrdup(str + len);
2263: argv_consume(&ac);
2264: break;
1.158 dtucker 2265:
1.176 djm 2266: case sChrootDirectory:
2267: charptr = &options->chroot_directory;
1.177 djm 2268:
1.380 djm 2269: arg = argv_next(&ac, &av);
1.177 djm 2270: if (!arg || *arg == '\0')
1.380 djm 2271: fatal("%s line %d: %s missing argument.",
2272: filename, linenum, keyword);
1.177 djm 2273: if (*activep && *charptr == NULL)
2274: *charptr = xstrdup(arg);
2275: break;
1.176 djm 2276:
1.204 djm 2277: case sTrustedUserCAKeys:
2278: charptr = &options->trusted_user_ca_keys;
2279: goto parse_filename;
2280:
2281: case sRevokedKeys:
2282: charptr = &options->revoked_keys_file;
2283: goto parse_filename;
2284:
1.355 djm 2285: case sSecurityKeyProvider:
2286: charptr = &options->sk_provider;
1.380 djm 2287: arg = argv_next(&ac, &av);
1.356 djm 2288: if (!arg || *arg == '\0')
1.380 djm 2289: fatal("%s line %d: %s missing argument.",
2290: filename, linenum, keyword);
1.356 djm 2291: if (*activep && *charptr == NULL) {
2292: *charptr = strcasecmp(arg, "internal") == 0 ?
2293: xstrdup(arg) : derelativise_path(arg);
2294: /* increase optional counter */
2295: if (intptr != NULL)
2296: *intptr = *intptr + 1;
2297: }
2298: break;
1.355 djm 2299:
1.213 djm 2300: case sIPQoS:
1.380 djm 2301: arg = argv_next(&ac, &av);
2302: if (!arg || *arg == '\0')
2303: fatal("%s line %d: %s missing argument.",
2304: filename, linenum, keyword);
1.213 djm 2305: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2306: fatal("%s line %d: Bad %s value: %s",
2307: filename, linenum, keyword, arg);
2308: arg = argv_next(&ac, &av);
1.213 djm 2309: if (arg == NULL)
2310: value2 = value;
2311: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2312: fatal("%s line %d: Bad %s value: %s",
2313: filename, linenum, keyword, arg);
1.213 djm 2314: if (*activep) {
2315: options->ip_qos_interactive = value;
2316: options->ip_qos_bulk = value2;
2317: }
2318: break;
2319:
1.225 djm 2320: case sVersionAddendum:
1.380 djm 2321: if (str == NULL || *str == '\0')
2322: fatal("%s line %d: %s missing argument.",
2323: filename, linenum, keyword);
2324: len = strspn(str, WHITESPACE);
2325: if (strchr(str + len, '\r') != NULL) {
2326: fatal("%.200s line %d: Invalid %s argument",
2327: filename, linenum, keyword);
2328: }
2329: if ((arg = strchr(line, '#')) != NULL) {
2330: *arg = '\0';
2331: rtrim(line);
2332: }
1.225 djm 2333: if (*activep && options->version_addendum == NULL) {
1.380 djm 2334: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2335: options->version_addendum = xstrdup("");
2336: else
1.380 djm 2337: options->version_addendum = xstrdup(str + len);
1.225 djm 2338: }
1.380 djm 2339: argv_consume(&ac);
2340: break;
1.225 djm 2341:
1.231 djm 2342: case sAuthorizedKeysCommand:
1.380 djm 2343: charptr = &options->authorized_keys_command;
2344: parse_command:
2345: len = strspn(str, WHITESPACE);
2346: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2347: fatal("%.200s line %d: %s must be an absolute path",
2348: filename, linenum, keyword);
2349: }
2350: if (*activep && options->authorized_keys_command == NULL)
2351: *charptr = xstrdup(str + len);
2352: argv_consume(&ac);
2353: break;
1.231 djm 2354:
2355: case sAuthorizedKeysCommandUser:
2356: charptr = &options->authorized_keys_command_user;
1.380 djm 2357: parse_localuser:
2358: arg = argv_next(&ac, &av);
2359: if (!arg || *arg == '\0') {
2360: fatal("%s line %d: missing %s argument.",
2361: filename, linenum, keyword);
2362: }
1.231 djm 2363: if (*activep && *charptr == NULL)
2364: *charptr = xstrdup(arg);
2365: break;
2366:
1.270 djm 2367: case sAuthorizedPrincipalsCommand:
1.380 djm 2368: charptr = &options->authorized_principals_command;
2369: goto parse_command;
1.270 djm 2370:
2371: case sAuthorizedPrincipalsCommandUser:
2372: charptr = &options->authorized_principals_command_user;
1.380 djm 2373: goto parse_localuser;
1.270 djm 2374:
1.232 djm 2375: case sAuthenticationMethods:
1.380 djm 2376: found = options->num_auth_methods == 0;
2377: value = 0; /* seen "any" pseudo-method */
2378: value2 = 0; /* successfully parsed any method */
2379: while ((arg = argv_next(&ac, &av)) != NULL) {
2380: if (strcmp(arg, "any") == 0) {
2381: if (options->num_auth_methods > 0) {
2382: fatal("%s line %d: \"any\" must "
2383: "appear alone in %s",
2384: filename, linenum, keyword);
1.291 djm 2385: }
1.380 djm 2386: value = 1;
2387: } else if (value) {
2388: fatal("%s line %d: \"any\" must appear "
2389: "alone in %s", filename, linenum, keyword);
2390: } else if (auth2_methods_valid(arg, 0) != 0) {
2391: fatal("%s line %d: invalid %s method list.",
2392: filename, linenum, keyword);
1.291 djm 2393: }
1.380 djm 2394: value2 = 1;
2395: if (!found || !*activep)
2396: continue;
2397: opt_array_append(filename, linenum, keyword,
2398: &options->auth_methods,
2399: &options->num_auth_methods, arg);
2400: }
2401: if (value2 == 0) {
2402: fatal("%s line %d: no %s specified",
2403: filename, linenum, keyword);
1.232 djm 2404: }
1.380 djm 2405: break;
1.232 djm 2406:
1.251 millert 2407: case sStreamLocalBindMask:
1.380 djm 2408: arg = argv_next(&ac, &av);
1.251 millert 2409: if (!arg || *arg == '\0')
1.380 djm 2410: fatal("%s line %d: %s missing argument.",
2411: filename, linenum, keyword);
1.251 millert 2412: /* Parse mode in octal format */
2413: value = strtol(arg, &p, 8);
2414: if (arg == p || value < 0 || value > 0777)
1.380 djm 2415: fatal("%s line %d: Invalid %s.",
2416: filename, linenum, keyword);
1.268 djm 2417: if (*activep)
2418: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2419: break;
2420:
2421: case sStreamLocalBindUnlink:
2422: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2423: goto parse_flag;
2424:
1.256 djm 2425: case sFingerprintHash:
1.380 djm 2426: arg = argv_next(&ac, &av);
1.256 djm 2427: if (!arg || *arg == '\0')
1.380 djm 2428: fatal("%s line %d: %s missing argument.",
2429: filename, linenum, keyword);
1.256 djm 2430: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2431: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2432: filename, linenum, keyword, arg);
1.256 djm 2433: if (*activep)
2434: options->fingerprint_hash = value;
2435: break;
2436:
1.309 djm 2437: case sExposeAuthInfo:
2438: intptr = &options->expose_userauth_info;
2439: goto parse_flag;
2440:
1.316 djm 2441: case sRDomain:
2442: charptr = &options->routing_domain;
1.380 djm 2443: arg = argv_next(&ac, &av);
1.316 djm 2444: if (!arg || *arg == '\0')
1.380 djm 2445: fatal("%s line %d: %s missing argument.",
2446: filename, linenum, keyword);
1.316 djm 2447: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2448: !valid_rdomain(arg))
1.380 djm 2449: fatal("%s line %d: invalid routing domain",
1.316 djm 2450: filename, linenum);
2451: if (*activep && *charptr == NULL)
2452: *charptr = xstrdup(arg);
1.321 dtucker 2453: break;
1.316 djm 2454:
1.386 djm 2455: case sRequiredRSASize:
2456: intptr = &options->required_rsa_size;
2457: goto parse_int;
2458:
1.389 djm 2459: case sChannelTimeout:
2460: uvalue = options->num_channel_timeouts;
2461: i = 0;
2462: while ((arg = argv_next(&ac, &av)) != NULL) {
2463: /* Allow "none" only in first position */
2464: if (strcasecmp(arg, "none") == 0) {
2465: if (i > 0 || ac > 0) {
2466: error("%s line %d: keyword %s \"none\" "
2467: "argument must appear alone.",
2468: filename, linenum, keyword);
2469: goto out;
2470: }
2471: } else if (parse_timeout(arg, NULL, NULL) != 0) {
2472: fatal("%s line %d: invalid channel timeout %s",
2473: filename, linenum, arg);
2474: }
2475: if (!*activep || uvalue != 0)
2476: continue;
2477: opt_array_append(filename, linenum, keyword,
2478: &options->channel_timeouts,
2479: &options->num_channel_timeouts, arg);
2480: }
2481: break;
2482:
1.390 djm 2483: case sUnusedConnectionTimeout:
2484: intptr = &options->unused_connection_timeout;
2485: /* peek at first arg for "none" so we can reuse parse_time */
2486: if (av[0] != NULL && strcasecmp(av[0], "none") == 0) {
2487: (void)argv_next(&ac, &av); /* consume arg */
2488: if (*activep)
2489: *intptr = 0;
2490: break;
2491: }
2492: goto parse_time;
2493:
1.94 markus 2494: case sDeprecated:
1.295 djm 2495: case sIgnore:
1.121 jakob 2496: case sUnsupported:
1.295 djm 2497: do_log2(opcode == sIgnore ?
2498: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2499: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2500: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2501: keyword);
2502: argv_consume(&ac);
1.94 markus 2503: break;
2504:
2505: default:
2506: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2507: filename, linenum, keyword, opcode);
2508: }
2509: /* Check that there is no garbage at end of line. */
2510: if (ac > 0) {
2511: error("%.200s line %d: keyword %s extra arguments "
2512: "at end of line", filename, linenum, keyword);
2513: goto out;
1.94 markus 2514: }
1.380 djm 2515:
2516: /* success */
2517: ret = 0;
2518: out:
2519: argv_free(oav, oac);
2520: return ret;
1.94 markus 2521: }
2522:
1.360 djm 2523: int
2524: process_server_config_line(ServerOptions *options, char *line,
2525: const char *filename, int linenum, int *activep,
2526: struct connection_info *connectinfo, struct include_list *includes)
2527: {
1.365 djm 2528: int inc_flags = 0;
2529:
1.360 djm 2530: return process_server_config_line_depth(options, line, filename,
1.365 djm 2531: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2532: }
2533:
2534:
1.94 markus 2535: /* Reads the server configuration file. */
1.25 markus 2536:
1.94 markus 2537: void
1.338 markus 2538: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2539: {
1.366 markus 2540: struct stat st;
1.331 markus 2541: char *line = NULL, *cp;
2542: size_t linesize = 0;
1.94 markus 2543: FILE *f;
1.388 dtucker 2544: int r;
1.81 stevesk 2545:
1.371 djm 2546: debug2_f("filename %s", filename);
1.134 djm 2547: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2548: perror(filename);
2549: exit(1);
2550: }
1.338 markus 2551: sshbuf_reset(conf);
1.366 markus 2552: /* grow buffer, so realloc is avoided for large config files */
2553: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2554: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2555: fatal_fr(r, "allocate");
1.331 markus 2556: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2557: /*
1.380 djm 2558: * Strip whitespace
1.135 deraadt 2559: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2560: * line numbers later for error messages
2561: */
2562: cp = line + strspn(line, " \t\r");
1.338 markus 2563: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2564: fatal_fr(r, "sshbuf_put");
1.134 djm 2565: }
1.331 markus 2566: free(line);
1.338 markus 2567: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2568: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2569: fclose(f);
1.371 djm 2570: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2571: }
2572:
2573: void
1.226 dtucker 2574: parse_server_match_config(ServerOptions *options,
1.360 djm 2575: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2576: {
2577: ServerOptions mo;
2578:
2579: initialize_server_options(&mo);
1.360 djm 2580: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2581: connectinfo, 0);
1.168 dtucker 2582: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2583: }
2584:
1.226 dtucker 2585: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2586: {
2587: char *p;
2588:
2589: while ((p = strsep(&spec, ",")) && *p != '\0') {
2590: if (strncmp(p, "addr=", 5) == 0) {
2591: ci->address = xstrdup(p + 5);
2592: } else if (strncmp(p, "host=", 5) == 0) {
2593: ci->host = xstrdup(p + 5);
2594: } else if (strncmp(p, "user=", 5) == 0) {
2595: ci->user = xstrdup(p + 5);
2596: } else if (strncmp(p, "laddr=", 6) == 0) {
2597: ci->laddress = xstrdup(p + 6);
1.317 djm 2598: } else if (strncmp(p, "rdomain=", 8) == 0) {
2599: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2600: } else if (strncmp(p, "lport=", 6) == 0) {
2601: ci->lport = a2port(p + 6);
2602: if (ci->lport == -1) {
2603: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2604: " specification %s\n", p+6, p);
1.226 dtucker 2605: return -1;
2606: }
2607: } else {
2608: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2609: p);
1.226 dtucker 2610: return -1;
2611: }
2612: }
2613: return 0;
2614: }
2615:
1.168 dtucker 2616: /*
2617: * Copy any supported values that are set.
2618: *
1.195 jj 2619: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2620: * array values that are not used pre-authentication, because any that we
1.328 djm 2621: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2622: */
1.153 dtucker 2623: void
1.168 dtucker 2624: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2625: {
1.247 djm 2626: #define M_CP_INTOPT(n) do {\
2627: if (src->n != -1) \
2628: dst->n = src->n; \
2629: } while (0)
2630:
1.168 dtucker 2631: M_CP_INTOPT(password_authentication);
2632: M_CP_INTOPT(gss_authentication);
2633: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2634: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2635: M_CP_INTOPT(kerberos_authentication);
2636: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2637: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2638: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2639: M_CP_INTOPT(permit_root_login);
1.188 djm 2640: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2641: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2642:
2643: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2644: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2645: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2646: M_CP_INTOPT(disable_forwarding);
1.309 djm 2647: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2648: M_CP_INTOPT(permit_tun);
1.251 millert 2649: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2650: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2651: M_CP_INTOPT(x11_display_offset);
2652: M_CP_INTOPT(x11_forwarding);
2653: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2654: M_CP_INTOPT(permit_tty);
1.250 djm 2655: M_CP_INTOPT(permit_user_rc);
1.180 djm 2656: M_CP_INTOPT(max_sessions);
1.184 dtucker 2657: M_CP_INTOPT(max_authtries);
1.300 markus 2658: M_CP_INTOPT(client_alive_count_max);
2659: M_CP_INTOPT(client_alive_interval);
1.213 djm 2660: M_CP_INTOPT(ip_qos_interactive);
2661: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2662: M_CP_INTOPT(rekey_limit);
2663: M_CP_INTOPT(rekey_interval);
1.308 djm 2664: M_CP_INTOPT(log_level);
1.386 djm 2665: M_CP_INTOPT(required_rsa_size);
1.390 djm 2666: M_CP_INTOPT(unused_connection_timeout);
1.289 djm 2667:
2668: /*
2669: * The bind_mask is a mode_t that may be unsigned, so we can't use
2670: * M_CP_INTOPT - it does a signed comparison that causes compiler
2671: * warnings.
2672: */
1.290 dtucker 2673: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2674: dst->fwd_opts.streamlocal_bind_mask =
2675: src->fwd_opts.streamlocal_bind_mask;
2676: }
1.247 djm 2677:
2678: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2679: #define M_CP_STROPT(n) do {\
2680: if (src->n != NULL && dst->n != src->n) { \
2681: free(dst->n); \
2682: dst->n = src->n; \
2683: } \
2684: } while(0)
1.314 djm 2685: #define M_CP_STRARRAYOPT(s, num_s) do {\
2686: u_int i; \
2687: if (src->num_s != 0) { \
2688: for (i = 0; i < dst->num_s; i++) \
2689: free(dst->s[i]); \
2690: free(dst->s); \
2691: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2692: for (i = 0; i < src->num_s; i++) \
2693: dst->s[i] = xstrdup(src->s[i]); \
2694: dst->num_s = src->num_s; \
1.312 djm 2695: } \
2696: } while(0)
1.168 dtucker 2697:
1.218 djm 2698: /* See comment in servconf.h */
2699: COPY_MATCH_STRING_OPTS();
1.282 djm 2700:
2701: /* Arguments that accept '+...' need to be expanded */
2702: assemble_algorithms(dst);
1.216 djm 2703:
1.217 dtucker 2704: /*
2705: * The only things that should be below this point are string options
2706: * which are only used after authentication.
2707: */
1.168 dtucker 2708: if (preauth)
2709: return;
1.219 djm 2710:
1.283 djm 2711: /* These options may be "none" to clear a global setting */
1.168 dtucker 2712: M_CP_STROPT(adm_forced_command);
1.283 djm 2713: if (option_clear_or_none(dst->adm_forced_command)) {
2714: free(dst->adm_forced_command);
2715: dst->adm_forced_command = NULL;
2716: }
1.176 djm 2717: M_CP_STROPT(chroot_directory);
1.283 djm 2718: if (option_clear_or_none(dst->chroot_directory)) {
2719: free(dst->chroot_directory);
2720: dst->chroot_directory = NULL;
2721: }
1.153 dtucker 2722: }
1.168 dtucker 2723:
2724: #undef M_CP_INTOPT
2725: #undef M_CP_STROPT
1.219 djm 2726: #undef M_CP_STRARRAYOPT
1.153 dtucker 2727:
1.360 djm 2728: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2729: static void
1.360 djm 2730: parse_server_config_depth(ServerOptions *options, const char *filename,
2731: struct sshbuf *conf, struct include_list *includes,
2732: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2733: {
1.360 djm 2734: int linenum, bad_options = 0;
1.136 dtucker 2735: char *cp, *obuf, *cbuf;
1.134 djm 2736:
1.360 djm 2737: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2738: fatal("Too many recursive configuration includes");
2739:
1.371 djm 2740: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2741: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2742:
1.287 djm 2743: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2744: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2745: linenum = 1;
1.140 deraadt 2746: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2747: if (process_server_config_line_depth(options, cp,
1.365 djm 2748: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2749: depth, includes) != 0)
1.94 markus 2750: bad_options++;
1.1 deraadt 2751: }
1.239 djm 2752: free(obuf);
1.78 stevesk 2753: if (bad_options > 0)
2754: fatal("%s: terminating, %d bad configuration options",
2755: filename, bad_options);
1.360 djm 2756: }
2757:
2758: void
2759: parse_server_config(ServerOptions *options, const char *filename,
2760: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2761: struct connection_info *connectinfo, int reexec)
1.360 djm 2762: {
2763: int active = connectinfo ? 0 : 1;
2764: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2765: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2766: if (!reexec)
2767: process_queued_listen_addrs(options);
1.182 dtucker 2768: }
2769:
2770: static const char *
1.221 djm 2771: fmt_multistate_int(int val, const struct multistate *m)
2772: {
2773: u_int i;
2774:
2775: for (i = 0; m[i].key != NULL; i++) {
2776: if (m[i].value == val)
2777: return m[i].key;
2778: }
2779: return "UNKNOWN";
2780: }
2781:
2782: static const char *
1.182 dtucker 2783: fmt_intarg(ServerOpCodes code, int val)
2784: {
1.221 djm 2785: if (val == -1)
2786: return "unset";
2787: switch (code) {
2788: case sAddressFamily:
2789: return fmt_multistate_int(val, multistate_addressfamily);
2790: case sPermitRootLogin:
2791: return fmt_multistate_int(val, multistate_permitrootlogin);
2792: case sGatewayPorts:
2793: return fmt_multistate_int(val, multistate_gatewayports);
2794: case sCompression:
2795: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2796: case sAllowTcpForwarding:
2797: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2798: case sAllowStreamLocalForwarding:
2799: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2800: case sIgnoreRhosts:
2801: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2802: case sFingerprintHash:
2803: return ssh_digest_alg_name(val);
1.221 djm 2804: default:
2805: switch (val) {
2806: case 0:
2807: return "no";
2808: case 1:
2809: return "yes";
2810: default:
2811: return "UNKNOWN";
2812: }
1.182 dtucker 2813: }
2814: }
2815:
2816: static void
2817: dump_cfg_int(ServerOpCodes code, int val)
2818: {
1.390 djm 2819: if (code == sUnusedConnectionTimeout && val == 0) {
2820: printf("%s none\n", lookup_opcode_name(code));
2821: return;
2822: }
1.182 dtucker 2823: printf("%s %d\n", lookup_opcode_name(code), val);
2824: }
2825:
2826: static void
1.263 dtucker 2827: dump_cfg_oct(ServerOpCodes code, int val)
2828: {
2829: printf("%s 0%o\n", lookup_opcode_name(code), val);
2830: }
2831:
2832: static void
1.182 dtucker 2833: dump_cfg_fmtint(ServerOpCodes code, int val)
2834: {
2835: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2836: }
2837:
2838: static void
2839: dump_cfg_string(ServerOpCodes code, const char *val)
2840: {
1.257 djm 2841: printf("%s %s\n", lookup_opcode_name(code),
2842: val == NULL ? "none" : val);
1.182 dtucker 2843: }
2844:
2845: static void
2846: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2847: {
2848: u_int i;
2849:
2850: for (i = 0; i < count; i++)
1.219 djm 2851: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2852: }
2853:
2854: static void
2855: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2856: {
2857: u_int i;
2858:
1.391 ! djm 2859: switch (code) {
! 2860: case sAuthenticationMethods:
! 2861: case sChannelTimeout:
! 2862: break;
! 2863: default:
! 2864: if (count <= 0)
! 2865: return;
! 2866: break;
! 2867: }
! 2868:
1.219 djm 2869: printf("%s", lookup_opcode_name(code));
2870: for (i = 0; i < count; i++)
2871: printf(" %s", vals[i]);
1.291 djm 2872: if (code == sAuthenticationMethods && count == 0)
2873: printf(" any");
1.389 djm 2874: else if (code == sChannelTimeout && count == 0)
2875: printf(" none");
1.219 djm 2876: printf("\n");
1.182 dtucker 2877: }
2878:
1.315 djm 2879: static char *
2880: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2881: {
1.315 djm 2882: int r;
1.182 dtucker 2883: struct addrinfo *ai;
1.315 djm 2884: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2885: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2886:
1.263 dtucker 2887: /*
2888: * ListenAddress must be after Port. add_one_listen_addr pushes
2889: * addresses onto a stack, so to maintain ordering we need to
2890: * print these in reverse order.
2891: */
1.315 djm 2892: for (ai = la->addrs; ai; ai = ai->ai_next) {
2893: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2894: sizeof(addr), port, sizeof(port),
2895: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2896: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2897: continue;
2898: }
2899: laddr2 = laddr1;
2900: if (ai->ai_family == AF_INET6) {
2901: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2902: addr, port,
2903: la->rdomain == NULL ? "" : " rdomain ",
2904: la->rdomain == NULL ? "" : la->rdomain,
2905: laddr2);
1.182 dtucker 2906: } else {
1.315 djm 2907: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2908: addr, port,
2909: la->rdomain == NULL ? "" : " rdomain ",
2910: la->rdomain == NULL ? "" : la->rdomain,
2911: laddr2);
1.182 dtucker 2912: }
1.315 djm 2913: free(laddr2);
2914: }
2915: return laddr1;
2916: }
2917:
2918: void
2919: dump_config(ServerOptions *o)
2920: {
2921: char *s;
2922: u_int i;
2923:
2924: /* these are usually at the top of the config */
2925: for (i = 0; i < o->num_ports; i++)
2926: printf("port %d\n", o->ports[i]);
2927: dump_cfg_fmtint(sAddressFamily, o->address_family);
2928:
2929: for (i = 0; i < o->num_listen_addrs; i++) {
2930: s = format_listen_addrs(&o->listen_addrs[i]);
2931: printf("%s", s);
2932: free(s);
1.182 dtucker 2933: }
2934:
2935: /* integer arguments */
2936: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2937: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2938: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2939: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2940: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2941: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 2942: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 2943: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.390 djm 2944: dump_cfg_int(sUnusedConnectionTimeout, o->unused_connection_timeout);
1.182 dtucker 2945:
2946: /* formatted integer arguments */
2947: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2948: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2949: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2950: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2951: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2952: o->hostbased_uses_name_from_packet_only);
2953: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2954: #ifdef KRB5
1.182 dtucker 2955: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2956: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2957: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2958: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2959: #endif
2960: #ifdef GSSAPI
1.182 dtucker 2961: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2962: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2963: #endif
1.182 dtucker 2964: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2965: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2966: o->kbd_interactive_authentication);
2967: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2968: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2969: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2970: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2971: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2972: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2973: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2974: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2975: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2976: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2977: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2978: dump_cfg_fmtint(sUseDNS, o->use_dns);
2979: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2980: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2981: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2982: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2983: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2984: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2985: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2986:
2987: /* string arguments */
2988: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 2989: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 2990: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 2991: dump_cfg_string(sCiphers, o->ciphers);
2992: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 2993: dump_cfg_string(sBanner, o->banner);
2994: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2995: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2996: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2997: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 2998: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 2999: dump_cfg_string(sAuthorizedPrincipalsFile,
3000: o->authorized_principals_file);
1.261 dtucker 3001: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
3002: ? "none" : o->version_addendum);
1.231 djm 3003: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
3004: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 3005: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
3006: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 3007: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 3008: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
3009: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 3010: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 3011: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 3012: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 3013: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 3014:
3015: /* string arguments requiring a lookup */
3016: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
3017: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
3018:
3019: /* string array arguments */
1.219 djm 3020: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
3021: o->authorized_keys_files);
1.182 dtucker 3022: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 3023: o->host_key_files);
1.261 dtucker 3024: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 3025: o->host_cert_files);
1.182 dtucker 3026: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
3027: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
3028: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3029: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3030: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3031: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3032: dump_cfg_strarray_oneline(sAuthenticationMethods,
3033: o->num_auth_methods, o->auth_methods);
1.370 djm 3034: dump_cfg_strarray_oneline(sLogVerbose,
3035: o->num_log_verbose, o->log_verbose);
1.389 djm 3036: dump_cfg_strarray_oneline(sChannelTimeout,
3037: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3038:
3039: /* other arguments */
3040: for (i = 0; i < o->num_subsystems; i++)
3041: printf("subsystem %s %s\n", o->subsystem_name[i],
3042: o->subsystem_args[i]);
3043:
3044: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3045: o->max_startups_rate, o->max_startups);
1.372 dtucker 3046: printf("persourcemaxstartups ");
3047: if (o->per_source_max_startups == INT_MAX)
3048: printf("none\n");
3049: else
3050: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3051: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3052: o->per_source_masklen_ipv6);
1.182 dtucker 3053:
1.318 djm 3054: s = NULL;
3055: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3056: if (tunmode_desc[i].val == o->permit_tun) {
3057: s = tunmode_desc[i].text;
3058: break;
3059: }
1.318 djm 3060: }
1.182 dtucker 3061: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3062:
1.214 stevesk 3063: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3064: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3065:
1.284 dtucker 3066: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3067: o->rekey_interval);
1.182 dtucker 3068:
1.310 djm 3069: printf("permitopen");
3070: if (o->num_permitted_opens == 0)
3071: printf(" any");
3072: else {
3073: for (i = 0; i < o->num_permitted_opens; i++)
3074: printf(" %s", o->permitted_opens[i]);
1.329 djm 3075: }
3076: printf("\n");
1.330 djm 3077: printf("permitlisten");
3078: if (o->num_permitted_listens == 0)
1.329 djm 3079: printf(" any");
3080: else {
1.330 djm 3081: for (i = 0; i < o->num_permitted_listens; i++)
3082: printf(" %s", o->permitted_listens[i]);
1.310 djm 3083: }
3084: printf("\n");
1.334 djm 3085:
1.367 djm 3086: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3087: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3088: } else {
3089: printf("permituserenvironment %s\n",
1.367 djm 3090: o->permit_user_env_allowlist);
1.334 djm 3091: }
3092:
1.354 djm 3093: printf("pubkeyauthoptions");
3094: if (o->pubkey_auth_options == 0)
3095: printf(" none");
3096: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3097: printf(" touch-required");
1.368 djm 3098: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3099: printf(" verify-required");
1.354 djm 3100: printf("\n");
1.1 deraadt 3101: }
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