Annotation of src/usr.bin/ssh/servconf.c, Revision 1.393
1.226 dtucker 1:
1.393 ! djm 2: /* $OpenBSD: servconf.c,v 1.392 2023/03/05 05:34:09 dtucker 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"
1.60 markus 44: #include "pathnames.h"
1.62 markus 45: #include "cipher.h"
1.339 markus 46: #include "sshkey.h"
1.66 markus 47: #include "kex.h"
48: #include "mac.h"
1.153 dtucker 49: #include "match.h"
1.156 dtucker 50: #include "channels.h"
1.165 dtucker 51: #include "groupaccess.h"
1.226 dtucker 52: #include "canohost.h"
53: #include "packet.h"
1.338 markus 54: #include "ssherr.h"
1.232 djm 55: #include "hostfile.h"
56: #include "auth.h"
1.252 djm 57: #include "myproposal.h"
1.256 djm 58: #include "digest.h"
1.345 djm 59:
1.315 djm 60: static void add_listen_addr(ServerOptions *, const char *,
61: const char *, int);
62: static void add_one_listen_addr(ServerOptions *, const char *,
63: const char *, int);
1.364 djm 64: static void parse_server_config_depth(ServerOptions *options,
65: const char *filename, struct sshbuf *conf, struct include_list *includes,
1.360 djm 66: struct connection_info *connectinfo, int flags, int *activep, int depth);
1.29 markus 67:
1.102 provos 68: /* Use of privilege separation or not */
69: extern int use_privsep;
1.338 markus 70: extern struct sshbuf *cfg;
1.62 markus 71:
1.1 deraadt 72: /* Initializes the server options to their default values. */
73:
1.34 markus 74: void
1.25 markus 75: initialize_server_options(ServerOptions *options)
1.1 deraadt 76: {
1.25 markus 77: memset(options, 0, sizeof(*options));
1.29 markus 78: options->num_ports = 0;
79: options->ports_from_cmdline = 0;
1.266 dtucker 80: options->queued_listen_addrs = NULL;
81: options->num_queued_listens = 0;
1.29 markus 82: options->listen_addrs = NULL;
1.315 djm 83: options->num_listen_addrs = 0;
1.138 djm 84: options->address_family = -1;
1.316 djm 85: options->routing_domain = NULL;
1.54 markus 86: options->num_host_key_files = 0;
1.203 djm 87: options->num_host_cert_files = 0;
1.240 markus 88: options->host_key_agent = NULL;
1.36 markus 89: options->pid_file = NULL;
1.25 markus 90: options->login_grace_time = -1;
1.279 chris 91: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 92: options->ignore_rhosts = -1;
93: options->ignore_user_known_hosts = -1;
94: options->print_motd = -1;
1.72 stevesk 95: options->print_lastlog = -1;
1.25 markus 96: options->x11_forwarding = -1;
97: options->x11_display_offset = -1;
1.99 stevesk 98: options->x11_use_localhost = -1;
1.244 djm 99: options->permit_tty = -1;
1.250 djm 100: options->permit_user_rc = -1;
1.42 markus 101: options->xauth_location = NULL;
1.25 markus 102: options->strict_modes = -1;
1.129 markus 103: options->tcp_keep_alive = -1;
1.101 markus 104: options->log_facility = SYSLOG_FACILITY_NOT_SET;
105: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.370 djm 106: options->num_log_verbose = 0;
107: options->log_verbose = NULL;
1.75 markus 108: options->hostbased_authentication = -1;
109: options->hostbased_uses_name_from_packet_only = -1;
1.375 dtucker 110: options->hostbased_accepted_algos = NULL;
1.276 markus 111: options->hostkeyalgorithms = NULL;
1.54 markus 112: options->pubkey_authentication = -1;
1.354 djm 113: options->pubkey_auth_options = -1;
1.374 dtucker 114: options->pubkey_accepted_algos = NULL;
1.25 markus 115: options->kerberos_authentication = -1;
116: options->kerberos_or_local_passwd = -1;
117: options->kerberos_ticket_cleanup = -1;
1.130 jakob 118: options->kerberos_get_afs_token = -1;
1.125 markus 119: options->gss_authentication=-1;
120: options->gss_cleanup_creds = -1;
1.271 djm 121: options->gss_strict_acceptor = -1;
1.25 markus 122: options->password_authentication = -1;
1.52 markus 123: options->kbd_interactive_authentication = -1;
1.25 markus 124: options->permit_empty_passwd = -1;
1.113 markus 125: options->permit_user_env = -1;
1.367 djm 126: options->permit_user_env_allowlist = NULL;
1.111 markus 127: options->compression = -1;
1.235 dtucker 128: options->rekey_limit = -1;
129: options->rekey_interval = -1;
1.53 markus 130: options->allow_tcp_forwarding = -1;
1.251 millert 131: options->allow_streamlocal_forwarding = -1;
1.178 pyr 132: options->allow_agent_forwarding = -1;
1.25 markus 133: options->num_allow_users = 0;
134: options->num_deny_users = 0;
135: options->num_allow_groups = 0;
136: options->num_deny_groups = 0;
1.33 markus 137: options->ciphers = NULL;
1.66 markus 138: options->macs = NULL;
1.211 djm 139: options->kex_algorithms = NULL;
1.341 djm 140: options->ca_sign_algorithms = NULL;
1.251 millert 141: options->fwd_opts.gateway_ports = -1;
142: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
143: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 144: options->num_subsystems = 0;
1.50 markus 145: options->max_startups_begin = -1;
146: options->max_startups_rate = -1;
1.46 markus 147: options->max_startups = -1;
1.372 dtucker 148: options->per_source_max_startups = -1;
149: options->per_source_masklen_ipv4 = -1;
150: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 151: options->max_authtries = -1;
1.180 djm 152: options->max_sessions = -1;
1.57 markus 153: options->banner = NULL;
1.122 markus 154: options->use_dns = -1;
1.77 beck 155: options->client_alive_interval = -1;
156: options->client_alive_count_max = -1;
1.219 djm 157: options->num_authkeys_files = 0;
1.131 djm 158: options->num_accept_env = 0;
1.332 djm 159: options->num_setenv = 0;
1.145 reyk 160: options->permit_tun = -1;
1.310 djm 161: options->permitted_opens = NULL;
1.330 djm 162: options->permitted_listens = NULL;
1.158 dtucker 163: options->adm_forced_command = NULL;
1.176 djm 164: options->chroot_directory = NULL;
1.231 djm 165: options->authorized_keys_command = NULL;
166: options->authorized_keys_command_user = NULL;
1.204 djm 167: options->revoked_keys_file = NULL;
1.355 djm 168: options->sk_provider = NULL;
1.204 djm 169: options->trusted_user_ca_keys = NULL;
1.208 djm 170: options->authorized_principals_file = NULL;
1.270 djm 171: options->authorized_principals_command = NULL;
172: options->authorized_principals_command_user = NULL;
1.213 djm 173: options->ip_qos_interactive = -1;
174: options->ip_qos_bulk = -1;
1.225 djm 175: options->version_addendum = NULL;
1.256 djm 176: options->fingerprint_hash = -1;
1.301 djm 177: options->disable_forwarding = -1;
1.309 djm 178: options->expose_userauth_info = -1;
1.386 djm 179: options->required_rsa_size = -1;
1.389 djm 180: options->channel_timeouts = NULL;
181: options->num_channel_timeouts = 0;
1.390 djm 182: options->unused_connection_timeout = -1;
1.1 deraadt 183: }
184:
1.257 djm 185: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
186: static int
187: option_clear_or_none(const char *o)
188: {
189: return o == NULL || strcasecmp(o, "none") == 0;
190: }
191:
1.282 djm 192: static void
193: assemble_algorithms(ServerOptions *o)
194: {
1.341 djm 195: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 196: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 197: int r;
1.335 djm 198:
199: all_cipher = cipher_alg_list(',', 0);
200: all_mac = mac_alg_list(',');
201: all_kex = kex_alg_list(',');
202: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 203: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 204: /* remove unsupported algos from default lists */
1.367 djm 205: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
206: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
207: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
208: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
209: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 210: #define ASSEMBLE(what, defaults, all) \
211: do { \
212: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 213: fatal_fr(r, "%s", #what); \
1.340 djm 214: } while (0)
1.358 dtucker 215: ASSEMBLE(ciphers, def_cipher, all_cipher);
216: ASSEMBLE(macs, def_mac, all_mac);
217: ASSEMBLE(kex_algorithms, def_kex, all_kex);
218: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 219: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 220: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 221: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 222: #undef ASSEMBLE
1.335 djm 223: free(all_cipher);
224: free(all_mac);
225: free(all_kex);
226: free(all_key);
1.341 djm 227: free(all_sig);
1.358 dtucker 228: free(def_cipher);
229: free(def_mac);
230: free(def_kex);
231: free(def_key);
232: free(def_sig);
1.282 djm 233: }
234:
1.314 djm 235: void
236: servconf_add_hostkey(const char *file, const int line,
1.344 djm 237: ServerOptions *options, const char *path, int userprovided)
1.314 djm 238: {
239: char *apath = derelativise_path(path);
240:
1.376 markus 241: opt_array_append2(file, line, "HostKey",
1.344 djm 242: &options->host_key_files, &options->host_key_file_userprovided,
243: &options->num_host_key_files, apath, userprovided);
1.314 djm 244: free(apath);
245: }
246:
247: void
248: servconf_add_hostcert(const char *file, const int line,
249: ServerOptions *options, const char *path)
250: {
251: char *apath = derelativise_path(path);
252:
1.376 markus 253: opt_array_append(file, line, "HostCertificate",
1.314 djm 254: &options->host_cert_files, &options->num_host_cert_files, apath);
255: free(apath);
256: }
257:
1.34 markus 258: void
1.25 markus 259: fill_default_server_options(ServerOptions *options)
1.1 deraadt 260: {
1.314 djm 261: u_int i;
1.257 djm 262:
1.54 markus 263: if (options->num_host_key_files == 0) {
1.293 naddy 264: /* fill default hostkeys */
1.314 djm 265: servconf_add_hostkey("[default]", 0, options,
1.344 djm 266: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 267: servconf_add_hostkey("[default]", 0, options,
1.344 djm 268: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 269: servconf_add_hostkey("[default]", 0, options,
1.344 djm 270: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 271: #ifdef WITH_XMSS
1.325 markus 272: servconf_add_hostkey("[default]", 0, options,
1.344 djm 273: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 274: #endif /* WITH_XMSS */
1.54 markus 275: }
1.203 djm 276: /* No certificates by default */
1.29 markus 277: if (options->num_ports == 0)
278: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 279: if (options->address_family == -1)
280: options->address_family = AF_UNSPEC;
1.29 markus 281: if (options->listen_addrs == NULL)
1.315 djm 282: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 283: if (options->pid_file == NULL)
1.257 djm 284: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 285: if (options->moduli_file == NULL)
286: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 287: if (options->login_grace_time == -1)
1.115 stevesk 288: options->login_grace_time = 120;
1.67 markus 289: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 290: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 291: if (options->ignore_rhosts == -1)
1.30 markus 292: options->ignore_rhosts = 1;
1.25 markus 293: if (options->ignore_user_known_hosts == -1)
294: options->ignore_user_known_hosts = 0;
295: if (options->print_motd == -1)
296: options->print_motd = 1;
1.72 stevesk 297: if (options->print_lastlog == -1)
298: options->print_lastlog = 1;
1.25 markus 299: if (options->x11_forwarding == -1)
1.30 markus 300: options->x11_forwarding = 0;
1.25 markus 301: if (options->x11_display_offset == -1)
1.30 markus 302: options->x11_display_offset = 10;
1.99 stevesk 303: if (options->x11_use_localhost == -1)
304: options->x11_use_localhost = 1;
1.42 markus 305: if (options->xauth_location == NULL)
1.257 djm 306: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 307: if (options->permit_tty == -1)
308: options->permit_tty = 1;
1.250 djm 309: if (options->permit_user_rc == -1)
310: options->permit_user_rc = 1;
1.25 markus 311: if (options->strict_modes == -1)
312: options->strict_modes = 1;
1.129 markus 313: if (options->tcp_keep_alive == -1)
314: options->tcp_keep_alive = 1;
1.101 markus 315: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 316: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 317: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 318: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 319: if (options->hostbased_authentication == -1)
320: options->hostbased_authentication = 0;
321: if (options->hostbased_uses_name_from_packet_only == -1)
322: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 323: if (options->pubkey_authentication == -1)
324: options->pubkey_authentication = 1;
1.354 djm 325: if (options->pubkey_auth_options == -1)
326: options->pubkey_auth_options = 0;
1.25 markus 327: if (options->kerberos_authentication == -1)
1.107 markus 328: options->kerberos_authentication = 0;
1.25 markus 329: if (options->kerberos_or_local_passwd == -1)
330: options->kerberos_or_local_passwd = 1;
331: if (options->kerberos_ticket_cleanup == -1)
332: options->kerberos_ticket_cleanup = 1;
1.130 jakob 333: if (options->kerberos_get_afs_token == -1)
334: options->kerberos_get_afs_token = 0;
1.125 markus 335: if (options->gss_authentication == -1)
336: options->gss_authentication = 0;
337: if (options->gss_cleanup_creds == -1)
338: options->gss_cleanup_creds = 1;
1.271 djm 339: if (options->gss_strict_acceptor == -1)
1.302 djm 340: options->gss_strict_acceptor = 1;
1.25 markus 341: if (options->password_authentication == -1)
342: options->password_authentication = 1;
1.52 markus 343: if (options->kbd_interactive_authentication == -1)
1.381 dtucker 344: options->kbd_interactive_authentication = 1;
1.25 markus 345: if (options->permit_empty_passwd == -1)
1.30 markus 346: options->permit_empty_passwd = 0;
1.334 djm 347: if (options->permit_user_env == -1) {
1.113 markus 348: options->permit_user_env = 0;
1.367 djm 349: options->permit_user_env_allowlist = NULL;
1.334 djm 350: }
1.111 markus 351: if (options->compression == -1)
1.359 dtucker 352: #ifdef WITH_ZLIB
1.337 sf 353: options->compression = COMP_DELAYED;
1.359 dtucker 354: #else
355: options->compression = COMP_NONE;
356: #endif
357:
1.235 dtucker 358: if (options->rekey_limit == -1)
359: options->rekey_limit = 0;
360: if (options->rekey_interval == -1)
361: options->rekey_interval = 0;
1.53 markus 362: if (options->allow_tcp_forwarding == -1)
1.233 djm 363: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 364: if (options->allow_streamlocal_forwarding == -1)
365: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 366: if (options->allow_agent_forwarding == -1)
367: options->allow_agent_forwarding = 1;
1.251 millert 368: if (options->fwd_opts.gateway_ports == -1)
369: options->fwd_opts.gateway_ports = 0;
1.46 markus 370: if (options->max_startups == -1)
1.234 dtucker 371: options->max_startups = 100;
1.50 markus 372: if (options->max_startups_rate == -1)
1.234 dtucker 373: options->max_startups_rate = 30; /* 30% */
1.50 markus 374: if (options->max_startups_begin == -1)
1.234 dtucker 375: options->max_startups_begin = 10;
1.372 dtucker 376: if (options->per_source_max_startups == -1)
377: options->per_source_max_startups = INT_MAX;
378: if (options->per_source_masklen_ipv4 == -1)
379: options->per_source_masklen_ipv4 = 32;
380: if (options->per_source_masklen_ipv6 == -1)
381: options->per_source_masklen_ipv6 = 128;
1.133 dtucker 382: if (options->max_authtries == -1)
383: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 384: if (options->max_sessions == -1)
385: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 386: if (options->use_dns == -1)
1.260 deraadt 387: options->use_dns = 0;
1.77 beck 388: if (options->client_alive_interval == -1)
1.95 deraadt 389: options->client_alive_interval = 0;
1.77 beck 390: if (options->client_alive_count_max == -1)
391: options->client_alive_count_max = 3;
1.219 djm 392: if (options->num_authkeys_files == 0) {
1.376 markus 393: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 394: &options->authorized_keys_files,
395: &options->num_authkeys_files,
396: _PATH_SSH_USER_PERMITTED_KEYS);
1.376 markus 397: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 398: &options->authorized_keys_files,
399: &options->num_authkeys_files,
400: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 401: }
1.145 reyk 402: if (options->permit_tun == -1)
1.146 reyk 403: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 404: if (options->ip_qos_interactive == -1)
1.327 job 405: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 406: if (options->ip_qos_bulk == -1)
1.327 job 407: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 408: if (options->version_addendum == NULL)
409: options->version_addendum = xstrdup("");
1.251 millert 410: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
411: options->fwd_opts.streamlocal_bind_mask = 0177;
412: if (options->fwd_opts.streamlocal_bind_unlink == -1)
413: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 414: if (options->fingerprint_hash == -1)
415: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 416: if (options->disable_forwarding == -1)
417: options->disable_forwarding = 0;
1.309 djm 418: if (options->expose_userauth_info == -1)
419: options->expose_userauth_info = 0;
1.355 djm 420: if (options->sk_provider == NULL)
421: options->sk_provider = xstrdup("internal");
1.386 djm 422: if (options->required_rsa_size == -1)
423: options->required_rsa_size = SSH_RSA_MINIMUM_MODULUS_SIZE;
1.390 djm 424: if (options->unused_connection_timeout == -1)
425: options->unused_connection_timeout = 0;
1.277 djm 426:
1.282 djm 427: assemble_algorithms(options);
1.277 djm 428:
1.285 djm 429: /* Turn privilege separation and sandboxing on by default */
1.102 provos 430: if (use_privsep == -1)
1.285 djm 431: use_privsep = PRIVSEP_ON;
1.257 djm 432:
433: #define CLEAR_ON_NONE(v) \
434: do { \
435: if (option_clear_or_none(v)) { \
436: free(v); \
437: v = NULL; \
438: } \
439: } while(0)
1.389 djm 440: #define CLEAR_ON_NONE_ARRAY(v, nv, none) \
441: do { \
442: if (options->nv == 1 && \
443: strcasecmp(options->v[0], none) == 0) { \
444: free(options->v[0]); \
445: free(options->v); \
446: options->v = NULL; \
447: options->nv = 0; \
448: } \
449: } while (0)
1.257 djm 450: CLEAR_ON_NONE(options->pid_file);
451: CLEAR_ON_NONE(options->xauth_location);
452: CLEAR_ON_NONE(options->banner);
453: CLEAR_ON_NONE(options->trusted_user_ca_keys);
454: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 455: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 456: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 457: CLEAR_ON_NONE(options->adm_forced_command);
458: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 459: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 460: CLEAR_ON_NONE(options->host_key_agent);
1.389 djm 461:
1.257 djm 462: for (i = 0; i < options->num_host_key_files; i++)
463: CLEAR_ON_NONE(options->host_key_files[i]);
464: for (i = 0; i < options->num_host_cert_files; i++)
465: CLEAR_ON_NONE(options->host_cert_files[i]);
1.389 djm 466:
467: CLEAR_ON_NONE_ARRAY(channel_timeouts, num_channel_timeouts, "none");
468: CLEAR_ON_NONE_ARRAY(auth_methods, num_auth_methods, "any");
1.257 djm 469: #undef CLEAR_ON_NONE
1.389 djm 470: #undef CLEAR_ON_NONE_ARRAY
1.1 deraadt 471: }
472:
473: /* Keyword tokens. */
1.25 markus 474: typedef enum {
475: sBadOption, /* == unknown option */
1.293 naddy 476: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 477: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 478: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.382 millert 479: sKerberosGetAFSToken, sPasswordAuthentication,
480: sKbdInteractiveAuthentication, sListenAddress, sAddressFamily,
1.72 stevesk 481: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 482: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 483: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 484: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 485: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 486: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 487: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 488: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 489: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 490: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 491: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 492: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 493: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 494: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 495: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 496: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 497: sHostCertificate, sInclude,
1.208 djm 498: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 499: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 500: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 501: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 502: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 503: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 504: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 505: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.390 djm 506: sRequiredRSASize, sChannelTimeout, sUnusedConnectionTimeout,
1.295 djm 507: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 508: } ServerOpCodes;
509:
1.360 djm 510: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
511: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
512: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
513: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 514: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 515:
1.1 deraadt 516: /* Textual representation of the tokens. */
1.25 markus 517: static struct {
518: const char *name;
519: ServerOpCodes opcode;
1.153 dtucker 520: u_int flags;
1.25 markus 521: } keywords[] = {
1.153 dtucker 522: { "port", sPort, SSHCFG_GLOBAL },
523: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
524: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 525: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 526: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 527: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 528: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 529: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 530: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 531: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 532: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 533: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 534: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 535: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 536: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 537: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 538: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 539: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 540: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 541: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 542: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 543: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 544: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 545: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 546: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 547: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 548: #ifdef KRB5
1.168 dtucker 549: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 550: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
551: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
552: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 553: #else
1.168 dtucker 554: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 555: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
556: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
557: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 558: #endif
1.153 dtucker 559: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
560: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 561: #ifdef GSSAPI
1.168 dtucker 562: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 563: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 564: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 565: #else
1.168 dtucker 566: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 567: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 568: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 569: #endif
1.168 dtucker 570: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
571: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.381 dtucker 572: { "challengeresponseauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
573: { "skeyauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
1.153 dtucker 574: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
575: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
576: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
577: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
578: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 579: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 580: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 581: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
582: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
583: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 584: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
585: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 586: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 587: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 588: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 589: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 590: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 591: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
592: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
593: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 594: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 595: { "allowusers", sAllowUsers, SSHCFG_ALL },
596: { "denyusers", sDenyUsers, SSHCFG_ALL },
597: { "allowgroups", sAllowGroups, SSHCFG_ALL },
598: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 599: { "ciphers", sCiphers, SSHCFG_GLOBAL },
600: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 601: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 602: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
603: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
604: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 605: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
606: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 607: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 608: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 609: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 610: { "usedns", sUseDNS, SSHCFG_GLOBAL },
611: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
612: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 613: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
614: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 615: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 616: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 617: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 618: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 619: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 620: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 621: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 622: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 623: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 624: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 625: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 626: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 627: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 628: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 629: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
630: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 631: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 632: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 633: { "include", sInclude, SSHCFG_ALL },
1.213 djm 634: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 635: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
636: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 637: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
638: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 639: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 640: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 641: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
642: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
643: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 644: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 645: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 646: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 647: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 648: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 649: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.386 djm 650: { "requiredrsasize", sRequiredRSASize, SSHCFG_ALL },
1.389 djm 651: { "channeltimeout", sChannelTimeout, SSHCFG_ALL },
1.390 djm 652: { "unusedconnectiontimeout", sUnusedConnectionTimeout, SSHCFG_ALL },
1.153 dtucker 653: { NULL, sBadOption, 0 }
1.1 deraadt 654: };
655:
1.182 dtucker 656: static struct {
657: int val;
658: char *text;
659: } tunmode_desc[] = {
660: { SSH_TUNMODE_NO, "no" },
661: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
662: { SSH_TUNMODE_ETHERNET, "ethernet" },
663: { SSH_TUNMODE_YES, "yes" },
664: { -1, NULL }
665: };
666:
1.329 djm 667: /* Returns an opcode name from its number */
668:
669: static const char *
670: lookup_opcode_name(ServerOpCodes code)
671: {
672: u_int i;
673:
674: for (i = 0; keywords[i].name != NULL; i++)
675: if (keywords[i].opcode == code)
676: return(keywords[i].name);
677: return "UNKNOWN";
678: }
679:
680:
1.27 markus 681: /*
1.73 stevesk 682: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 683: */
1.1 deraadt 684:
1.34 markus 685: static ServerOpCodes
1.25 markus 686: parse_token(const char *cp, const char *filename,
1.153 dtucker 687: int linenum, u_int *flags)
1.1 deraadt 688: {
1.55 markus 689: u_int i;
1.1 deraadt 690:
1.25 markus 691: for (i = 0; keywords[i].name; i++)
1.153 dtucker 692: if (strcasecmp(cp, keywords[i].name) == 0) {
693: *flags = keywords[i].flags;
1.25 markus 694: return keywords[i].opcode;
1.153 dtucker 695: }
1.25 markus 696:
1.78 stevesk 697: error("%s: line %d: Bad configuration option: %s",
698: filename, linenum, cp);
1.25 markus 699: return sBadOption;
1.1 deraadt 700: }
701:
1.202 djm 702: char *
703: derelativise_path(const char *path)
704: {
1.259 deraadt 705: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 706:
1.257 djm 707: if (strcasecmp(path, "none") == 0)
708: return xstrdup("none");
1.202 djm 709: expanded = tilde_expand_filename(path, getuid());
1.343 djm 710: if (path_absolute(expanded))
1.202 djm 711: return expanded;
1.207 djm 712: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 713: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 714: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 715: free(expanded);
1.202 djm 716: return ret;
717: }
718:
1.84 itojun 719: static void
1.315 djm 720: add_listen_addr(ServerOptions *options, const char *addr,
721: const char *rdomain, int port)
1.74 stevesk 722: {
1.142 djm 723: u_int i;
1.74 stevesk 724:
1.315 djm 725: if (port > 0)
726: add_one_listen_addr(options, addr, rdomain, port);
727: else {
728: for (i = 0; i < options->num_ports; i++) {
729: add_one_listen_addr(options, addr, rdomain,
730: options->ports[i]);
731: }
732: }
1.74 stevesk 733: }
734:
1.84 itojun 735: static void
1.315 djm 736: add_one_listen_addr(ServerOptions *options, const char *addr,
737: const char *rdomain, int port)
1.29 markus 738: {
739: struct addrinfo hints, *ai, *aitop;
740: char strport[NI_MAXSERV];
741: int gaierr;
1.315 djm 742: u_int i;
743:
744: /* Find listen_addrs entry for this rdomain */
745: for (i = 0; i < options->num_listen_addrs; i++) {
746: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
747: break;
748: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
749: continue;
750: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
751: break;
752: }
753: if (i >= options->num_listen_addrs) {
754: /* No entry for this rdomain; allocate one */
755: if (i >= INT_MAX)
1.371 djm 756: fatal_f("too many listen addresses");
1.315 djm 757: options->listen_addrs = xrecallocarray(options->listen_addrs,
758: options->num_listen_addrs, options->num_listen_addrs + 1,
759: sizeof(*options->listen_addrs));
760: i = options->num_listen_addrs++;
761: if (rdomain != NULL)
762: options->listen_addrs[i].rdomain = xstrdup(rdomain);
763: }
764: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 765:
1.74 stevesk 766: memset(&hints, 0, sizeof(hints));
1.138 djm 767: hints.ai_family = options->address_family;
1.74 stevesk 768: hints.ai_socktype = SOCK_STREAM;
769: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 770: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 771: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
772: fatal("bad addr or host: %s (%s)",
773: addr ? addr : "<NULL>",
1.173 dtucker 774: ssh_gai_strerror(gaierr));
1.74 stevesk 775: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
776: ;
1.315 djm 777: ai->ai_next = options->listen_addrs[i].addrs;
778: options->listen_addrs[i].addrs = aitop;
779: }
780:
781: /* Returns nonzero if the routing domain name is valid */
782: static int
783: valid_rdomain(const char *name)
784: {
785: const char *errstr;
786: long long num;
787: struct rt_tableinfo info;
788: int mib[6];
789: size_t miblen = sizeof(mib);
790:
791: if (name == NULL)
792: return 1;
793:
794: num = strtonum(name, 0, 255, &errstr);
795: if (errstr != NULL)
796: return 0;
797:
798: /* Check whether the table actually exists */
799: memset(mib, 0, sizeof(mib));
800: mib[0] = CTL_NET;
801: mib[1] = PF_ROUTE;
802: mib[4] = NET_RT_TABLE;
803: mib[5] = (int)num;
804: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
805: return 0;
806:
807: return 1;
1.29 markus 808: }
809:
1.266 dtucker 810: /*
811: * Queue a ListenAddress to be processed once we have all of the Ports
812: * and AddressFamily options.
813: */
814: static void
1.315 djm 815: queue_listen_addr(ServerOptions *options, const char *addr,
816: const char *rdomain, int port)
1.266 dtucker 817: {
1.315 djm 818: struct queued_listenaddr *qla;
819:
820: options->queued_listen_addrs = xrecallocarray(
821: options->queued_listen_addrs,
822: options->num_queued_listens, options->num_queued_listens + 1,
823: sizeof(*options->queued_listen_addrs));
824: qla = &options->queued_listen_addrs[options->num_queued_listens++];
825: qla->addr = xstrdup(addr);
826: qla->port = port;
827: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 828: }
829:
830: /*
831: * Process queued (text) ListenAddress entries.
832: */
833: static void
834: process_queued_listen_addrs(ServerOptions *options)
835: {
836: u_int i;
1.315 djm 837: struct queued_listenaddr *qla;
1.266 dtucker 838:
839: if (options->num_ports == 0)
840: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
841: if (options->address_family == -1)
842: options->address_family = AF_UNSPEC;
843:
844: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 845: qla = &options->queued_listen_addrs[i];
846: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
847: free(qla->addr);
848: free(qla->rdomain);
1.266 dtucker 849: }
850: free(options->queued_listen_addrs);
851: options->queued_listen_addrs = NULL;
852: options->num_queued_listens = 0;
853: }
854:
1.310 djm 855: /*
1.329 djm 856: * Inform channels layer of permitopen options for a single forwarding
857: * direction (local/remote).
1.310 djm 858: */
1.329 djm 859: static void
860: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
861: char **opens, u_int num_opens)
1.310 djm 862: {
863: u_int i;
864: int port;
1.383 dtucker 865: char *host, *arg, *oarg;
1.329 djm 866: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
867: const char *what = lookup_opcode_name(opcode);
1.310 djm 868:
1.329 djm 869: channel_clear_permission(ssh, FORWARD_ADM, where);
870: if (num_opens == 0)
1.310 djm 871: return; /* permit any */
872:
873: /* handle keywords: "any" / "none" */
1.329 djm 874: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 875: return;
1.329 djm 876: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
877: channel_disable_admin(ssh, where);
1.310 djm 878: return;
879: }
880: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 881: for (i = 0; i < num_opens; i++) {
882: oarg = arg = xstrdup(opens[i]);
1.383 dtucker 883: host = hpdelim(&arg);
884: if (host == NULL)
1.371 djm 885: fatal_f("missing host in %s", what);
1.310 djm 886: host = cleanhostname(host);
887: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.371 djm 888: fatal_f("bad port number in %s", what);
1.310 djm 889: /* Send it to channels layer */
1.329 djm 890: channel_add_permission(ssh, FORWARD_ADM,
891: where, host, port);
1.310 djm 892: free(oarg);
893: }
894: }
895:
1.329 djm 896: /*
897: * Inform channels layer of permitopen options from configuration.
898: */
899: void
900: process_permitopen(struct ssh *ssh, ServerOptions *options)
901: {
902: process_permitopen_list(ssh, sPermitOpen,
903: options->permitted_opens, options->num_permitted_opens);
1.330 djm 904: process_permitopen_list(ssh, sPermitListen,
905: options->permitted_listens,
906: options->num_permitted_listens);
1.329 djm 907: }
908:
1.389 djm 909: /* Parse a ChannelTimeout clause "pattern=interval" */
910: static int
911: parse_timeout(const char *s, char **typep, u_int *secsp)
912: {
913: char *cp, *sdup;
914: int secs;
915:
916: if (typep != NULL)
917: *typep = NULL;
918: if (secsp != NULL)
919: *secsp = 0;
920: if (s == NULL)
921: return -1;
922: sdup = xstrdup(s);
923:
924: if ((cp = strchr(sdup, '=')) == NULL || cp == sdup) {
925: free(sdup);
926: return -1;
927: }
928: *cp++ = '\0';
929: if ((secs = convtime(cp)) < 0) {
930: free(sdup);
931: return -1;
932: }
933: /* success */
934: if (typep != NULL)
935: *typep = xstrdup(sdup);
936: if (secsp != NULL)
937: *secsp = (u_int)secs;
938: free(sdup);
939: return 0;
940: }
941:
942: void
943: process_channel_timeouts(struct ssh *ssh, ServerOptions *options)
944: {
945: u_int i, secs;
946: char *type;
947:
948: debug3_f("setting %u timeouts", options->num_channel_timeouts);
949: channel_clear_timeouts(ssh);
950: for (i = 0; i < options->num_channel_timeouts; i++) {
951: if (parse_timeout(options->channel_timeouts[i],
952: &type, &secs) != 0) {
953: fatal_f("internal error: bad timeout %s",
954: options->channel_timeouts[i]);
955: }
956: channel_add_timeout(ssh, type, secs);
957: free(type);
958: }
959: }
960:
1.226 dtucker 961: struct connection_info *
1.346 djm 962: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 963: {
964: static struct connection_info ci;
965:
1.346 djm 966: if (ssh == NULL || !populate)
1.226 dtucker 967: return &ci;
1.286 djm 968: ci.host = auth_get_canonical_hostname(ssh, use_dns);
969: ci.address = ssh_remote_ipaddr(ssh);
970: ci.laddress = ssh_local_ipaddr(ssh);
971: ci.lport = ssh_local_port(ssh);
1.317 djm 972: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 973: return &ci;
974: }
975:
1.153 dtucker 976: /*
977: * The strategy for the Match blocks is that the config file is parsed twice.
978: *
979: * The first time is at startup. activep is initialized to 1 and the
980: * directives in the global context are processed and acted on. Hitting a
981: * Match directive unsets activep and the directives inside the block are
982: * checked for syntax only.
983: *
984: * The second time is after a connection has been established but before
985: * authentication. activep is initialized to 2 and global config directives
986: * are ignored since they have already been processed. If the criteria in a
987: * Match block is met, activep is set and the subsequent directives
988: * processed and actioned until EOF or another Match block unsets it. Any
989: * options set are copied into the main server config.
990: *
991: * Potential additions/improvements:
1.295 djm 992: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 993: *
994: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
995: * Match Address 192.168.0.*
996: * Tag trusted
997: * Match Group wheel
998: * Tag trusted
999: * Match Tag trusted
1000: * AllowTcpForwarding yes
1001: * GatewayPorts clientspecified
1002: * [...]
1003: *
1004: * - Add a PermittedChannelRequests directive
1005: * Match Group shell
1006: * PermittedChannelRequests session,forwarded-tcpip
1007: */
1008:
1009: static int
1.165 dtucker 1010: match_cfg_line_group(const char *grps, int line, const char *user)
1011: {
1012: int result = 0;
1013: struct passwd *pw;
1014:
1015: if (user == NULL)
1016: goto out;
1017:
1018: if ((pw = getpwnam(user)) == NULL) {
1019: debug("Can't match group at line %d because user %.100s does "
1020: "not exist", line, user);
1021: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
1022: debug("Can't Match group because user %.100s not in any group "
1023: "at line %d", user, line);
1.186 djm 1024: } else if (ga_match_pattern_list(grps) != 1) {
1025: debug("user %.100s does not match group list %.100s at line %d",
1026: user, grps, line);
1.165 dtucker 1027: } else {
1.186 djm 1028: debug("user %.100s matched group list %.100s at line %d", user,
1029: grps, line);
1.165 dtucker 1030: result = 1;
1031: }
1032: out:
1033: ga_free();
1034: return result;
1035: }
1036:
1.319 dtucker 1037: static void
1038: match_test_missing_fatal(const char *criteria, const char *attrib)
1039: {
1040: fatal("'Match %s' in configuration but '%s' not in connection "
1041: "test specification.", criteria, attrib);
1042: }
1043:
1.226 dtucker 1044: /*
1.230 dtucker 1045: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 1046: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 1047: * not match.
1.226 dtucker 1048: */
1.165 dtucker 1049: static int
1.226 dtucker 1050: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 1051: {
1.243 dtucker 1052: int result = 1, attributes = 0, port;
1.153 dtucker 1053: char *arg, *attrib, *cp = *condition;
1054:
1.226 dtucker 1055: if (ci == NULL)
1.153 dtucker 1056: debug3("checking syntax for 'Match %s'", cp);
1057: else
1.226 dtucker 1058: debug3("checking match for '%s' user %s host %s addr %s "
1059: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
1060: ci->host ? ci->host : "(null)",
1061: ci->address ? ci->address : "(null)",
1062: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 1063:
1064: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 1065: /* Terminate on comment */
1066: if (*attrib == '#') {
1067: cp = NULL; /* mark all arguments consumed */
1068: break;
1069: }
1070: arg = NULL;
1.243 dtucker 1071: attributes++;
1.380 djm 1072: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1073: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 1074: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
1075: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1076: error("'all' cannot be combined with other "
1077: "Match attributes");
1078: return -1;
1079: }
1.380 djm 1080: if (arg != NULL && *arg == '#')
1081: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1082: *condition = cp;
1083: return 1;
1084: }
1.380 djm 1085: /* All other criteria require an argument */
1086: if ((arg = strdelim(&cp)) == NULL ||
1087: *arg == '\0' || *arg == '#') {
1.153 dtucker 1088: error("Missing Match criteria for %s", attrib);
1089: return -1;
1090: }
1091: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1092: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1093: result = 0;
1094: continue;
1095: }
1.319 dtucker 1096: if (ci->user == NULL)
1097: match_test_missing_fatal("User", "user");
1.349 dtucker 1098: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1099: result = 0;
1100: else
1101: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1102: "line %d", ci->user, arg, line);
1.165 dtucker 1103: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1104: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1105: result = 0;
1106: continue;
1107: }
1.319 dtucker 1108: if (ci->user == NULL)
1109: match_test_missing_fatal("Group", "user");
1.226 dtucker 1110: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1111: case -1:
1112: return -1;
1113: case 0:
1114: result = 0;
1115: }
1.153 dtucker 1116: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1117: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1118: result = 0;
1119: continue;
1120: }
1.319 dtucker 1121: if (ci->host == NULL)
1122: match_test_missing_fatal("Host", "host");
1.269 djm 1123: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1124: result = 0;
1125: else
1126: debug("connection from %.100s matched 'Host "
1.226 dtucker 1127: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1128: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1129: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1130: if (addr_match_list(NULL, arg) != 0)
1131: fatal("Invalid Match address argument "
1132: "'%s' at line %d", arg, line);
1.226 dtucker 1133: result = 0;
1134: continue;
1135: }
1.319 dtucker 1136: if (ci->address == NULL)
1137: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1138: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1139: case 1:
1140: debug("connection from %.100s matched 'Address "
1.226 dtucker 1141: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1142: break;
1143: case 0:
1.183 djm 1144: case -1:
1.153 dtucker 1145: result = 0;
1.181 djm 1146: break;
1.183 djm 1147: case -2:
1.181 djm 1148: return -1;
1.153 dtucker 1149: }
1.226 dtucker 1150: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1151: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1152: if (addr_match_list(NULL, arg) != 0)
1153: fatal("Invalid Match localaddress "
1154: "argument '%s' at line %d", arg,
1155: line);
1.226 dtucker 1156: result = 0;
1157: continue;
1158: }
1.319 dtucker 1159: if (ci->laddress == NULL)
1160: match_test_missing_fatal("LocalAddress",
1161: "laddr");
1.226 dtucker 1162: switch (addr_match_list(ci->laddress, arg)) {
1163: case 1:
1164: debug("connection from %.100s matched "
1165: "'LocalAddress %.100s' at line %d",
1166: ci->laddress, arg, line);
1167: break;
1168: case 0:
1169: case -1:
1170: result = 0;
1171: break;
1172: case -2:
1173: return -1;
1174: }
1175: } else if (strcasecmp(attrib, "localport") == 0) {
1176: if ((port = a2port(arg)) == -1) {
1177: error("Invalid LocalPort '%s' on Match line",
1178: arg);
1179: return -1;
1180: }
1.351 dtucker 1181: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1182: result = 0;
1183: continue;
1184: }
1.319 dtucker 1185: if (ci->lport == 0)
1186: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1187: /* TODO support port lists */
1188: if (port == ci->lport)
1189: debug("connection from %.100s matched "
1190: "'LocalPort %d' at line %d",
1191: ci->laddress, port, line);
1192: else
1193: result = 0;
1.317 djm 1194: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1195: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1196: result = 0;
1197: continue;
1198: }
1.351 dtucker 1199: if (ci->rdomain == NULL)
1200: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1201: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1202: result = 0;
1203: else
1204: debug("user %.100s matched 'RDomain %.100s' at "
1205: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1206: } else {
1207: error("Unsupported Match attribute %s", attrib);
1208: return -1;
1209: }
1.243 dtucker 1210: }
1211: if (attributes == 0) {
1212: error("One or more attributes required for Match");
1213: return -1;
1.153 dtucker 1214: }
1.226 dtucker 1215: if (ci != NULL)
1.153 dtucker 1216: debug3("match %sfound", result ? "" : "not ");
1217: *condition = cp;
1218: return result;
1219: }
1220:
1.158 dtucker 1221: #define WHITESPACE " \t\r\n"
1222:
1.220 djm 1223: /* Multistate option parsing */
1224: struct multistate {
1225: char *key;
1226: int value;
1227: };
1.320 djm 1228: static const struct multistate multistate_flag[] = {
1229: { "yes", 1 },
1230: { "no", 0 },
1231: { NULL, -1 }
1232: };
1.363 djm 1233: static const struct multistate multistate_ignore_rhosts[] = {
1234: { "yes", IGNORE_RHOSTS_YES },
1235: { "no", IGNORE_RHOSTS_NO },
1236: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1237: { NULL, -1 }
1238: };
1.220 djm 1239: static const struct multistate multistate_addressfamily[] = {
1240: { "inet", AF_INET },
1241: { "inet6", AF_INET6 },
1242: { "any", AF_UNSPEC },
1243: { NULL, -1 }
1244: };
1245: static const struct multistate multistate_permitrootlogin[] = {
1246: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1247: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1248: { "forced-commands-only", PERMIT_FORCED_ONLY },
1249: { "yes", PERMIT_YES },
1250: { "no", PERMIT_NO },
1251: { NULL, -1 }
1252: };
1253: static const struct multistate multistate_compression[] = {
1.359 dtucker 1254: #ifdef WITH_ZLIB
1.337 sf 1255: { "yes", COMP_DELAYED },
1256: { "delayed", COMP_DELAYED },
1.359 dtucker 1257: #endif
1.220 djm 1258: { "no", COMP_NONE },
1259: { NULL, -1 }
1260: };
1261: static const struct multistate multistate_gatewayports[] = {
1262: { "clientspecified", 2 },
1263: { "yes", 1 },
1264: { "no", 0 },
1.222 djm 1265: { NULL, -1 }
1266: };
1.233 djm 1267: static const struct multistate multistate_tcpfwd[] = {
1268: { "yes", FORWARD_ALLOW },
1269: { "all", FORWARD_ALLOW },
1270: { "no", FORWARD_DENY },
1271: { "remote", FORWARD_REMOTE },
1272: { "local", FORWARD_LOCAL },
1273: { NULL, -1 }
1274: };
1.220 djm 1275:
1.360 djm 1276: static int
1277: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1278: const char *filename, int linenum, int *activep,
1.365 djm 1279: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1280: struct include_list *includes)
1.1 deraadt 1281: {
1.383 dtucker 1282: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.360 djm 1283: int cmdline = 0, *intptr, value, value2, n, port, oactive, r, found;
1.174 dtucker 1284: SyslogFacility *log_facility_ptr;
1285: LogLevel *log_level_ptr;
1.25 markus 1286: ServerOpCodes opcode;
1.329 djm 1287: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1288: size_t len;
1.237 dtucker 1289: long long val64;
1.220 djm 1290: const struct multistate *multistate_ptr;
1.322 dtucker 1291: const char *errstr;
1.360 djm 1292: struct include_item *item;
1293: glob_t gbuf;
1.380 djm 1294: char **oav = NULL, **av;
1295: int oac = 0, ac;
1296: int ret = -1;
1.303 djm 1297:
1298: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1299: if ((len = strlen(line)) == 0)
1300: return 0;
1301: for (len--; len > 0; len--) {
1302: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1303: break;
1304: line[len] = '\0';
1305: }
1.25 markus 1306:
1.380 djm 1307: str = line;
1308: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1309: return 0;
1.94 markus 1310: /* Ignore leading whitespace */
1.380 djm 1311: if (*keyword == '\0')
1312: keyword = strdelim(&str);
1313: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1314: return 0;
1.380 djm 1315: if (str == NULL || *str == '\0') {
1316: error("%s line %d: no argument after keyword \"%s\"",
1317: filename, linenum, keyword);
1318: return -1;
1319: }
1.94 markus 1320: intptr = NULL;
1321: charptr = NULL;
1.380 djm 1322: opcode = parse_token(keyword, filename, linenum, &flags);
1323:
1324: if (argv_split(str, &oac, &oav, 1) != 0) {
1325: error("%s line %d: invalid quotes", filename, linenum);
1326: return -1;
1327: }
1328: ac = oac;
1329: av = oav;
1.153 dtucker 1330:
1331: if (activep == NULL) { /* We are processing a command line directive */
1332: cmdline = 1;
1333: activep = &cmdline;
1334: }
1.360 djm 1335: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1336: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1337: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1338: if (connectinfo == NULL) {
1.153 dtucker 1339: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1340: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1341: } else { /* this is a directive we have already processed */
1.380 djm 1342: ret = 0;
1343: goto out;
1.153 dtucker 1344: }
1345: }
1346:
1.94 markus 1347: switch (opcode) {
1348: case sBadOption:
1.380 djm 1349: goto out;
1.94 markus 1350: case sPort:
1351: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1352: if (options->ports_from_cmdline) {
1353: argv_consume(&ac);
1354: break;
1355: }
1.94 markus 1356: if (options->num_ports >= MAX_PORTS)
1357: fatal("%s line %d: too many ports.",
1358: filename, linenum);
1.380 djm 1359: arg = argv_next(&ac, &av);
1.94 markus 1360: if (!arg || *arg == '\0')
1361: fatal("%s line %d: missing port number.",
1362: filename, linenum);
1363: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1364: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1365: fatal("%s line %d: Badly formatted port number.",
1366: filename, linenum);
1367: break;
1.29 markus 1368:
1.94 markus 1369: case sLoginGraceTime:
1370: intptr = &options->login_grace_time;
1.180 djm 1371: parse_time:
1.380 djm 1372: arg = argv_next(&ac, &av);
1.94 markus 1373: if (!arg || *arg == '\0')
1374: fatal("%s line %d: missing time value.",
1375: filename, linenum);
1376: if ((value = convtime(arg)) == -1)
1377: fatal("%s line %d: invalid time value.",
1378: filename, linenum);
1.268 djm 1379: if (*activep && *intptr == -1)
1.94 markus 1380: *intptr = value;
1381: break;
1382:
1383: case sListenAddress:
1.380 djm 1384: arg = argv_next(&ac, &av);
1.139 djm 1385: if (arg == NULL || *arg == '\0')
1386: fatal("%s line %d: missing address",
1.94 markus 1387: filename, linenum);
1.144 dtucker 1388: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1389: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1390: && strchr(p+1, ':') != NULL) {
1.315 djm 1391: port = 0;
1392: p = arg;
1393: } else {
1.347 dtucker 1394: arg2 = NULL;
1.383 dtucker 1395: p = hpdelim(&arg);
1396: if (p == NULL)
1.315 djm 1397: fatal("%s line %d: bad address:port usage",
1398: filename, linenum);
1399: p = cleanhostname(p);
1400: if (arg == NULL)
1401: port = 0;
1402: else if ((port = a2port(arg)) <= 0)
1403: fatal("%s line %d: bad port number",
1404: filename, linenum);
1405: }
1406: /* Optional routing table */
1407: arg2 = NULL;
1.380 djm 1408: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1409: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1410: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1411: fatal("%s line %d: bad ListenAddress syntax",
1412: filename, linenum);
1413: if (!valid_rdomain(arg2))
1414: fatal("%s line %d: bad routing domain",
1415: filename, linenum);
1.144 dtucker 1416: }
1.315 djm 1417: queue_listen_addr(options, p, arg2, port);
1.25 markus 1418:
1.138 djm 1419: break;
1420:
1421: case sAddressFamily:
1.220 djm 1422: intptr = &options->address_family;
1423: multistate_ptr = multistate_addressfamily;
1424: parse_multistate:
1.380 djm 1425: arg = argv_next(&ac, &av);
1.141 markus 1426: if (!arg || *arg == '\0')
1.220 djm 1427: fatal("%s line %d: missing argument.",
1.141 markus 1428: filename, linenum);
1.220 djm 1429: value = -1;
1430: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1431: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1432: value = multistate_ptr[i].value;
1433: break;
1434: }
1435: }
1436: if (value == -1)
1437: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1438: filename, linenum, arg);
1.220 djm 1439: if (*activep && *intptr == -1)
1.138 djm 1440: *intptr = value;
1.94 markus 1441: break;
1442:
1443: case sHostKeyFile:
1.380 djm 1444: arg = argv_next(&ac, &av);
1.94 markus 1445: if (!arg || *arg == '\0')
1446: fatal("%s line %d: missing file name.",
1447: filename, linenum);
1.344 djm 1448: if (*activep) {
1449: servconf_add_hostkey(filename, linenum,
1450: options, arg, 1);
1451: }
1.94 markus 1452: break;
1.76 stevesk 1453:
1.240 markus 1454: case sHostKeyAgent:
1455: charptr = &options->host_key_agent;
1.380 djm 1456: arg = argv_next(&ac, &av);
1.240 markus 1457: if (!arg || *arg == '\0')
1458: fatal("%s line %d: missing socket name.",
1459: filename, linenum);
1460: if (*activep && *charptr == NULL)
1461: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1462: xstrdup(arg) : derelativise_path(arg);
1463: break;
1464:
1.203 djm 1465: case sHostCertificate:
1.380 djm 1466: arg = argv_next(&ac, &av);
1.314 djm 1467: if (!arg || *arg == '\0')
1468: fatal("%s line %d: missing file name.",
1469: filename, linenum);
1470: if (*activep)
1471: servconf_add_hostcert(filename, linenum, options, arg);
1472: break;
1.203 djm 1473:
1.94 markus 1474: case sPidFile:
1475: charptr = &options->pid_file;
1.314 djm 1476: parse_filename:
1.380 djm 1477: arg = argv_next(&ac, &av);
1.314 djm 1478: if (!arg || *arg == '\0')
1479: fatal("%s line %d: missing file name.",
1480: filename, linenum);
1481: if (*activep && *charptr == NULL) {
1482: *charptr = derelativise_path(arg);
1483: /* increase optional counter */
1484: if (intptr != NULL)
1485: *intptr = *intptr + 1;
1486: }
1487: break;
1.25 markus 1488:
1.378 dtucker 1489: case sModuliFile:
1490: charptr = &options->moduli_file;
1491: goto parse_filename;
1492:
1.94 markus 1493: case sPermitRootLogin:
1494: intptr = &options->permit_root_login;
1.220 djm 1495: multistate_ptr = multistate_permitrootlogin;
1496: goto parse_multistate;
1.36 markus 1497:
1.94 markus 1498: case sIgnoreRhosts:
1499: intptr = &options->ignore_rhosts;
1.363 djm 1500: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1501: goto parse_multistate;
1.94 markus 1502:
1503: case sIgnoreUserKnownHosts:
1504: intptr = &options->ignore_user_known_hosts;
1.363 djm 1505: parse_flag:
1506: multistate_ptr = multistate_flag;
1507: goto parse_multistate;
1.94 markus 1508:
1509: case sHostbasedAuthentication:
1510: intptr = &options->hostbased_authentication;
1511: goto parse_flag;
1512:
1513: case sHostbasedUsesNameFromPacketOnly:
1514: intptr = &options->hostbased_uses_name_from_packet_only;
1515: goto parse_flag;
1516:
1.375 dtucker 1517: case sHostbasedAcceptedAlgorithms:
1518: charptr = &options->hostbased_accepted_algos;
1.374 dtucker 1519: parse_pubkey_algos:
1.380 djm 1520: arg = argv_next(&ac, &av);
1.258 djm 1521: if (!arg || *arg == '\0')
1522: fatal("%s line %d: Missing argument.",
1523: filename, linenum);
1.304 djm 1524: if (*arg != '-' &&
1.352 naddy 1525: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1526: arg + 1 : arg, 1))
1.258 djm 1527: fatal("%s line %d: Bad key types '%s'.",
1528: filename, linenum, arg ? arg : "<NONE>");
1529: if (*activep && *charptr == NULL)
1530: *charptr = xstrdup(arg);
1531: break;
1532:
1.276 markus 1533: case sHostKeyAlgorithms:
1534: charptr = &options->hostkeyalgorithms;
1.374 dtucker 1535: goto parse_pubkey_algos;
1.276 markus 1536:
1.341 djm 1537: case sCASignatureAlgorithms:
1538: charptr = &options->ca_sign_algorithms;
1.374 dtucker 1539: goto parse_pubkey_algos;
1.341 djm 1540:
1.94 markus 1541: case sPubkeyAuthentication:
1542: intptr = &options->pubkey_authentication;
1543: goto parse_flag;
1.119 jakob 1544:
1.374 dtucker 1545: case sPubkeyAcceptedAlgorithms:
1546: charptr = &options->pubkey_accepted_algos;
1547: goto parse_pubkey_algos;
1.258 djm 1548:
1.354 djm 1549: case sPubkeyAuthOptions:
1550: intptr = &options->pubkey_auth_options;
1551: value = 0;
1.380 djm 1552: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1553: if (strcasecmp(arg, "none") == 0)
1554: continue;
1555: if (strcasecmp(arg, "touch-required") == 0)
1556: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1557: else if (strcasecmp(arg, "verify-required") == 0)
1558: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1559: else {
1.380 djm 1560: error("%s line %d: unsupported %s option %s",
1561: filename, linenum, keyword, arg);
1562: goto out;
1.354 djm 1563: }
1564: }
1565: if (*activep && *intptr == -1)
1566: *intptr = value;
1567: break;
1568:
1.94 markus 1569: case sKerberosAuthentication:
1570: intptr = &options->kerberos_authentication;
1571: goto parse_flag;
1572:
1573: case sKerberosOrLocalPasswd:
1574: intptr = &options->kerberos_or_local_passwd;
1575: goto parse_flag;
1576:
1577: case sKerberosTicketCleanup:
1578: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1579: goto parse_flag;
1580:
1581: case sKerberosGetAFSToken:
1582: intptr = &options->kerberos_get_afs_token;
1.125 markus 1583: goto parse_flag;
1584:
1585: case sGssAuthentication:
1586: intptr = &options->gss_authentication;
1587: goto parse_flag;
1588:
1589: case sGssCleanupCreds:
1590: intptr = &options->gss_cleanup_creds;
1.271 djm 1591: goto parse_flag;
1592:
1593: case sGssStrictAcceptor:
1594: intptr = &options->gss_strict_acceptor;
1.94 markus 1595: goto parse_flag;
1596:
1597: case sPasswordAuthentication:
1598: intptr = &options->password_authentication;
1599: goto parse_flag;
1600:
1601: case sKbdInteractiveAuthentication:
1602: intptr = &options->kbd_interactive_authentication;
1603: goto parse_flag;
1604:
1605: case sPrintMotd:
1606: intptr = &options->print_motd;
1607: goto parse_flag;
1608:
1609: case sPrintLastLog:
1610: intptr = &options->print_lastlog;
1611: goto parse_flag;
1612:
1613: case sX11Forwarding:
1614: intptr = &options->x11_forwarding;
1615: goto parse_flag;
1616:
1617: case sX11DisplayOffset:
1618: intptr = &options->x11_display_offset;
1.293 naddy 1619: parse_int:
1.380 djm 1620: arg = argv_next(&ac, &av);
1.322 dtucker 1621: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1622: fatal("%s line %d: %s integer value %s.",
1623: filename, linenum, keyword, errstr);
1.293 naddy 1624: if (*activep && *intptr == -1)
1625: *intptr = value;
1626: break;
1.99 stevesk 1627:
1628: case sX11UseLocalhost:
1629: intptr = &options->x11_use_localhost;
1630: goto parse_flag;
1.94 markus 1631:
1632: case sXAuthLocation:
1633: charptr = &options->xauth_location;
1634: goto parse_filename;
1635:
1.244 djm 1636: case sPermitTTY:
1637: intptr = &options->permit_tty;
1638: goto parse_flag;
1639:
1.250 djm 1640: case sPermitUserRC:
1641: intptr = &options->permit_user_rc;
1642: goto parse_flag;
1643:
1.94 markus 1644: case sStrictModes:
1645: intptr = &options->strict_modes;
1646: goto parse_flag;
1647:
1.129 markus 1648: case sTCPKeepAlive:
1649: intptr = &options->tcp_keep_alive;
1.94 markus 1650: goto parse_flag;
1651:
1652: case sEmptyPasswd:
1653: intptr = &options->permit_empty_passwd;
1.113 markus 1654: goto parse_flag;
1655:
1656: case sPermitUserEnvironment:
1657: intptr = &options->permit_user_env;
1.367 djm 1658: charptr = &options->permit_user_env_allowlist;
1.380 djm 1659: arg = argv_next(&ac, &av);
1.334 djm 1660: if (!arg || *arg == '\0')
1.380 djm 1661: fatal("%s line %d: %s missing argument.",
1662: filename, linenum, keyword);
1.334 djm 1663: value = 0;
1664: p = NULL;
1665: if (strcmp(arg, "yes") == 0)
1666: value = 1;
1667: else if (strcmp(arg, "no") == 0)
1668: value = 0;
1669: else {
1670: /* Pattern-list specified */
1671: value = 1;
1672: p = xstrdup(arg);
1673: }
1674: if (*activep && *intptr == -1) {
1675: *intptr = value;
1676: *charptr = p;
1677: p = NULL;
1678: }
1679: free(p);
1680: break;
1.94 markus 1681:
1.111 markus 1682: case sCompression:
1683: intptr = &options->compression;
1.220 djm 1684: multistate_ptr = multistate_compression;
1685: goto parse_multistate;
1.94 markus 1686:
1.235 dtucker 1687: case sRekeyLimit:
1.380 djm 1688: arg = argv_next(&ac, &av);
1.235 dtucker 1689: if (!arg || *arg == '\0')
1.380 djm 1690: fatal("%s line %d: %s missing argument.",
1691: filename, linenum, keyword);
1.235 dtucker 1692: if (strcmp(arg, "default") == 0) {
1693: val64 = 0;
1694: } else {
1.236 dtucker 1695: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1696: fatal("%.200s line %d: Bad %s number '%s': %s",
1697: filename, linenum, keyword,
1698: arg, strerror(errno));
1.235 dtucker 1699: if (val64 != 0 && val64 < 16)
1.380 djm 1700: fatal("%.200s line %d: %s too small",
1701: filename, linenum, keyword);
1.235 dtucker 1702: }
1703: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1704: options->rekey_limit = val64;
1.380 djm 1705: if (ac != 0) { /* optional rekey interval present */
1706: if (strcmp(av[0], "none") == 0) {
1707: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1708: break;
1709: }
1710: intptr = &options->rekey_interval;
1711: goto parse_time;
1712: }
1713: break;
1714:
1.94 markus 1715: case sGatewayPorts:
1.251 millert 1716: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1717: multistate_ptr = multistate_gatewayports;
1718: goto parse_multistate;
1.25 markus 1719:
1.122 markus 1720: case sUseDNS:
1721: intptr = &options->use_dns;
1.94 markus 1722: goto parse_flag;
1.53 markus 1723:
1.94 markus 1724: case sLogFacility:
1.174 dtucker 1725: log_facility_ptr = &options->log_facility;
1.380 djm 1726: arg = argv_next(&ac, &av);
1.94 markus 1727: value = log_facility_number(arg);
1.101 markus 1728: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1729: fatal("%.200s line %d: unsupported log facility '%s'",
1730: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1731: if (*log_facility_ptr == -1)
1732: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1733: break;
1.25 markus 1734:
1.94 markus 1735: case sLogLevel:
1.174 dtucker 1736: log_level_ptr = &options->log_level;
1.380 djm 1737: arg = argv_next(&ac, &av);
1.94 markus 1738: value = log_level_number(arg);
1.101 markus 1739: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1740: fatal("%.200s line %d: unsupported log level '%s'",
1741: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1742: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1743: *log_level_ptr = (LogLevel) value;
1.94 markus 1744: break;
1745:
1.370 djm 1746: case sLogVerbose:
1.380 djm 1747: found = options->num_log_verbose == 0;
1748: i = 0;
1749: while ((arg = argv_next(&ac, &av)) != NULL) {
1750: if (*arg == '\0') {
1751: error("%s line %d: keyword %s empty argument",
1752: filename, linenum, keyword);
1753: goto out;
1754: }
1755: /* Allow "none" only in first position */
1756: if (strcasecmp(arg, "none") == 0) {
1757: if (i > 0 || ac > 0) {
1758: error("%s line %d: keyword %s \"none\" "
1759: "argument must appear alone.",
1760: filename, linenum, keyword);
1761: goto out;
1762: }
1763: }
1764: i++;
1765: if (!found || !*activep)
1.370 djm 1766: continue;
1.380 djm 1767: opt_array_append(filename, linenum, keyword,
1.370 djm 1768: &options->log_verbose, &options->num_log_verbose,
1769: arg);
1770: }
1771: break;
1772:
1.94 markus 1773: case sAllowTcpForwarding:
1774: intptr = &options->allow_tcp_forwarding;
1.233 djm 1775: multistate_ptr = multistate_tcpfwd;
1776: goto parse_multistate;
1.102 provos 1777:
1.251 millert 1778: case sAllowStreamLocalForwarding:
1779: intptr = &options->allow_streamlocal_forwarding;
1780: multistate_ptr = multistate_tcpfwd;
1781: goto parse_multistate;
1782:
1.178 pyr 1783: case sAllowAgentForwarding:
1784: intptr = &options->allow_agent_forwarding;
1785: goto parse_flag;
1786:
1.301 djm 1787: case sDisableForwarding:
1788: intptr = &options->disable_forwarding;
1789: goto parse_flag;
1790:
1.94 markus 1791: case sAllowUsers:
1.380 djm 1792: chararrayptr = &options->allow_users;
1793: uintptr = &options->num_allow_users;
1794: parse_allowdenyusers:
1795: while ((arg = argv_next(&ac, &av)) != NULL) {
1796: if (*arg == '\0' ||
1797: match_user(NULL, NULL, NULL, arg) == -1)
1798: fatal("%s line %d: invalid %s pattern: \"%s\"",
1799: filename, linenum, keyword, arg);
1.227 markus 1800: if (!*activep)
1801: continue;
1.380 djm 1802: opt_array_append(filename, linenum, keyword,
1803: chararrayptr, uintptr, arg);
1.94 markus 1804: }
1805: break;
1.25 markus 1806:
1.94 markus 1807: case sDenyUsers:
1.380 djm 1808: chararrayptr = &options->deny_users;
1809: uintptr = &options->num_deny_users;
1810: goto parse_allowdenyusers;
1.25 markus 1811:
1.94 markus 1812: case sAllowGroups:
1.380 djm 1813: chararrayptr = &options->allow_groups;
1814: uintptr = &options->num_allow_groups;
1815: parse_allowdenygroups:
1816: while ((arg = argv_next(&ac, &av)) != NULL) {
1817: if (*arg == '\0')
1818: fatal("%s line %d: empty %s pattern",
1819: filename, linenum, keyword);
1.227 markus 1820: if (!*activep)
1821: continue;
1.380 djm 1822: opt_array_append(filename, linenum, keyword,
1823: chararrayptr, uintptr, arg);
1.94 markus 1824: }
1825: break;
1.33 markus 1826:
1.94 markus 1827: case sDenyGroups:
1.380 djm 1828: chararrayptr = &options->deny_groups;
1829: uintptr = &options->num_deny_groups;
1830: goto parse_allowdenygroups;
1.66 markus 1831:
1.94 markus 1832: case sCiphers:
1.380 djm 1833: arg = argv_next(&ac, &av);
1.94 markus 1834: if (!arg || *arg == '\0')
1.380 djm 1835: fatal("%s line %d: %s missing argument.",
1836: filename, linenum, keyword);
1.352 naddy 1837: if (*arg != '-' &&
1838: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1839: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1840: filename, linenum, arg ? arg : "<NONE>");
1841: if (options->ciphers == NULL)
1842: options->ciphers = xstrdup(arg);
1843: break;
1.33 markus 1844:
1.94 markus 1845: case sMacs:
1.380 djm 1846: arg = argv_next(&ac, &av);
1.94 markus 1847: if (!arg || *arg == '\0')
1.380 djm 1848: fatal("%s line %d: %s missing argument.",
1849: filename, linenum, keyword);
1.352 naddy 1850: if (*arg != '-' &&
1851: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1852: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1853: filename, linenum, arg ? arg : "<NONE>");
1854: if (options->macs == NULL)
1855: options->macs = xstrdup(arg);
1.211 djm 1856: break;
1857:
1858: case sKexAlgorithms:
1.380 djm 1859: arg = argv_next(&ac, &av);
1.211 djm 1860: if (!arg || *arg == '\0')
1.380 djm 1861: fatal("%s line %d: %s missing argument.",
1862: filename, linenum, keyword);
1.304 djm 1863: if (*arg != '-' &&
1.352 naddy 1864: !kex_names_valid(*arg == '+' || *arg == '^' ?
1865: arg + 1 : arg))
1.211 djm 1866: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1867: filename, linenum, arg ? arg : "<NONE>");
1868: if (options->kex_algorithms == NULL)
1869: options->kex_algorithms = xstrdup(arg);
1.94 markus 1870: break;
1.43 jakob 1871:
1.94 markus 1872: case sSubsystem:
1873: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1874: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1875: filename, linenum);
1.94 markus 1876: }
1.380 djm 1877: arg = argv_next(&ac, &av);
1.94 markus 1878: if (!arg || *arg == '\0')
1.380 djm 1879: fatal("%s line %d: %s missing argument.",
1880: filename, linenum, keyword);
1.153 dtucker 1881: if (!*activep) {
1.380 djm 1882: arg = argv_next(&ac, &av);
1.153 dtucker 1883: break;
1884: }
1.94 markus 1885: for (i = 0; i < options->num_subsystems; i++)
1886: if (strcmp(arg, options->subsystem_name[i]) == 0)
1.380 djm 1887: fatal("%s line %d: Subsystem '%s' "
1888: "already defined.", filename, linenum, arg);
1.94 markus 1889: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1890: arg = argv_next(&ac, &av);
1.94 markus 1891: if (!arg || *arg == '\0')
1892: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1893: filename, linenum);
1.94 markus 1894: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1895:
1896: /* Collect arguments (separate to executable) */
1897: p = xstrdup(arg);
1898: len = strlen(p) + 1;
1.380 djm 1899: while ((arg = argv_next(&ac, &av)) != NULL) {
1.151 djm 1900: len += 1 + strlen(arg);
1.264 deraadt 1901: p = xreallocarray(p, 1, len);
1.151 djm 1902: strlcat(p, " ", len);
1903: strlcat(p, arg, len);
1904: }
1905: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1906: options->num_subsystems++;
1907: break;
1.46 markus 1908:
1.94 markus 1909: case sMaxStartups:
1.380 djm 1910: arg = argv_next(&ac, &av);
1.94 markus 1911: if (!arg || *arg == '\0')
1.380 djm 1912: fatal("%s line %d: %s missing argument.",
1913: filename, linenum, keyword);
1.94 markus 1914: if ((n = sscanf(arg, "%d:%d:%d",
1915: &options->max_startups_begin,
1916: &options->max_startups_rate,
1917: &options->max_startups)) == 3) {
1918: if (options->max_startups_begin >
1919: options->max_startups ||
1920: options->max_startups_rate > 100 ||
1921: options->max_startups_rate < 1)
1.380 djm 1922: fatal("%s line %d: Invalid %s spec.",
1923: filename, linenum, keyword);
1.94 markus 1924: } else if (n != 1)
1.380 djm 1925: fatal("%s line %d: Invalid %s spec.",
1926: filename, linenum, keyword);
1.94 markus 1927: else
1928: options->max_startups = options->max_startups_begin;
1.387 dtucker 1929: if (options->max_startups <= 0 ||
1930: options->max_startups_begin <= 0)
1931: fatal("%s line %d: Invalid %s spec.",
1932: filename, linenum, keyword);
1.94 markus 1933: break;
1.133 dtucker 1934:
1.372 dtucker 1935: case sPerSourceNetBlockSize:
1.380 djm 1936: arg = argv_next(&ac, &av);
1.372 dtucker 1937: if (!arg || *arg == '\0')
1.380 djm 1938: fatal("%s line %d: %s missing argument.",
1939: filename, linenum, keyword);
1.372 dtucker 1940: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1941: case 2:
1942: if (value2 < 0 || value2 > 128)
1943: n = -1;
1944: /* FALLTHROUGH */
1945: case 1:
1946: if (value < 0 || value > 32)
1947: n = -1;
1948: }
1949: if (n != 1 && n != 2)
1.380 djm 1950: fatal("%s line %d: Invalid %s spec.",
1951: filename, linenum, keyword);
1.372 dtucker 1952: if (*activep) {
1953: options->per_source_masklen_ipv4 = value;
1954: options->per_source_masklen_ipv6 = value2;
1955: }
1956: break;
1957:
1958: case sPerSourceMaxStartups:
1.380 djm 1959: arg = argv_next(&ac, &av);
1.372 dtucker 1960: if (!arg || *arg == '\0')
1.380 djm 1961: fatal("%s line %d: %s missing argument.",
1962: filename, linenum, keyword);
1.372 dtucker 1963: if (strcmp(arg, "none") == 0) { /* no limit */
1964: value = INT_MAX;
1965: } else {
1966: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1967: fatal("%s line %d: %s integer value %s.",
1968: filename, linenum, keyword, errstr);
1.372 dtucker 1969: }
1970: if (*activep)
1971: options->per_source_max_startups = value;
1972: break;
1973:
1.133 dtucker 1974: case sMaxAuthTries:
1975: intptr = &options->max_authtries;
1976: goto parse_int;
1.94 markus 1977:
1.180 djm 1978: case sMaxSessions:
1979: intptr = &options->max_sessions;
1980: goto parse_int;
1981:
1.94 markus 1982: case sBanner:
1983: charptr = &options->banner;
1984: goto parse_filename;
1.176 djm 1985:
1.94 markus 1986: /*
1987: * These options can contain %X options expanded at
1988: * connect time, so that you can specify paths like:
1989: *
1990: * AuthorizedKeysFile /etc/ssh_keys/%u
1991: */
1992: case sAuthorizedKeysFile:
1.380 djm 1993: uvalue = options->num_authkeys_files;
1994: while ((arg = argv_next(&ac, &av)) != NULL) {
1995: if (*arg == '\0') {
1996: error("%s line %d: keyword %s empty argument",
1997: filename, linenum, keyword);
1998: goto out;
1999: }
2000: arg2 = tilde_expand_filename(arg, getuid());
2001: if (*activep && uvalue == 0) {
2002: opt_array_append(filename, linenum, keyword,
1.314 djm 2003: &options->authorized_keys_files,
1.380 djm 2004: &options->num_authkeys_files, arg2);
1.219 djm 2005: }
1.380 djm 2006: free(arg2);
1.219 djm 2007: }
1.380 djm 2008: break;
1.219 djm 2009:
1.208 djm 2010: case sAuthorizedPrincipalsFile:
2011: charptr = &options->authorized_principals_file;
1.380 djm 2012: arg = argv_next(&ac, &av);
1.205 djm 2013: if (!arg || *arg == '\0')
1.380 djm 2014: fatal("%s line %d: %s missing argument.",
2015: filename, linenum, keyword);
1.205 djm 2016: if (*activep && *charptr == NULL) {
1.206 markus 2017: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 2018: /* increase optional counter */
2019: if (intptr != NULL)
2020: *intptr = *intptr + 1;
2021: }
2022: break;
1.94 markus 2023:
2024: case sClientAliveInterval:
2025: intptr = &options->client_alive_interval;
2026: goto parse_time;
2027:
2028: case sClientAliveCountMax:
2029: intptr = &options->client_alive_count_max;
2030: goto parse_int;
1.131 djm 2031:
2032: case sAcceptEnv:
1.380 djm 2033: while ((arg = argv_next(&ac, &av)) != NULL) {
2034: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 2035: fatal("%s line %d: Invalid environment name.",
2036: filename, linenum);
1.153 dtucker 2037: if (!*activep)
1.227 markus 2038: continue;
1.380 djm 2039: opt_array_append(filename, linenum, keyword,
1.314 djm 2040: &options->accept_env, &options->num_accept_env,
2041: arg);
1.131 djm 2042: }
2043: break;
1.145 reyk 2044:
1.332 djm 2045: case sSetEnv:
2046: uvalue = options->num_setenv;
1.380 djm 2047: while ((arg = argv_next(&ac, &av)) != NULL) {
2048: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 2049: fatal("%s line %d: Invalid environment.",
2050: filename, linenum);
2051: if (!*activep || uvalue != 0)
2052: continue;
1.385 djm 2053: if (lookup_setenv_in_list(arg, options->setenv,
2054: options->num_setenv) != NULL) {
2055: debug2("%s line %d: ignoring duplicate env "
2056: "name \"%.64s\"", filename, linenum, arg);
2057: continue;
2058: }
1.380 djm 2059: opt_array_append(filename, linenum, keyword,
1.332 djm 2060: &options->setenv, &options->num_setenv, arg);
2061: }
2062: break;
2063:
1.145 reyk 2064: case sPermitTunnel:
2065: intptr = &options->permit_tun;
1.380 djm 2066: arg = argv_next(&ac, &av);
1.146 reyk 2067: if (!arg || *arg == '\0')
1.380 djm 2068: fatal("%s line %d: %s missing argument.",
2069: filename, linenum, keyword);
1.182 dtucker 2070: value = -1;
2071: for (i = 0; tunmode_desc[i].val != -1; i++)
2072: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2073: value = tunmode_desc[i].val;
2074: break;
2075: }
2076: if (value == -1)
1.380 djm 2077: fatal("%s line %d: bad %s argument %s",
2078: filename, linenum, keyword, arg);
1.268 djm 2079: if (*activep && *intptr == -1)
1.146 reyk 2080: *intptr = value;
2081: break;
1.94 markus 2082:
1.360 djm 2083: case sInclude:
2084: if (cmdline) {
2085: fatal("Include directive not supported as a "
2086: "command-line option");
2087: }
2088: value = 0;
1.380 djm 2089: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2090: if (*arg2 == '\0') {
2091: error("%s line %d: keyword %s empty argument",
2092: filename, linenum, keyword);
2093: goto out;
2094: }
1.360 djm 2095: value++;
2096: found = 0;
2097: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2098: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2099: } else
2100: arg = xstrdup(arg2);
2101:
2102: /*
2103: * Don't let included files clobber the containing
2104: * file's Match state.
2105: */
2106: oactive = *activep;
2107:
2108: /* consult cache of include files */
2109: TAILQ_FOREACH(item, includes, entry) {
2110: if (strcmp(item->selector, arg) != 0)
2111: continue;
2112: if (item->filename != NULL) {
2113: parse_server_config_depth(options,
2114: item->filename, item->contents,
2115: includes, connectinfo,
1.365 djm 2116: (*inc_flags & SSHCFG_MATCH_ONLY
2117: ? SSHCFG_MATCH_ONLY : (oactive
2118: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2119: activep, depth + 1);
2120: }
2121: found = 1;
2122: *activep = oactive;
2123: }
2124: if (found != 0) {
2125: free(arg);
2126: continue;
2127: }
2128:
2129: /* requested glob was not in cache */
2130: debug2("%s line %d: new include %s",
2131: filename, linenum, arg);
2132: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2133: if (r != GLOB_NOMATCH) {
1.380 djm 2134: fatal("%s line %d: include \"%s\" glob "
2135: "failed", filename, linenum, arg);
1.360 djm 2136: }
2137: /*
2138: * If no entry matched then record a
2139: * placeholder to skip later glob calls.
2140: */
2141: debug2("%s line %d: no match for %s",
2142: filename, linenum, arg);
2143: item = xcalloc(1, sizeof(*item));
2144: item->selector = strdup(arg);
2145: TAILQ_INSERT_TAIL(includes,
2146: item, entry);
2147: }
2148: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2149: fatal_f("too many glob results");
1.360 djm 2150: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2151: debug2("%s line %d: including %s",
2152: filename, linenum, gbuf.gl_pathv[n]);
2153: item = xcalloc(1, sizeof(*item));
2154: item->selector = strdup(arg);
2155: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2156: if ((item->contents = sshbuf_new()) == NULL)
2157: fatal_f("sshbuf_new failed");
1.360 djm 2158: load_server_config(item->filename,
2159: item->contents);
2160: parse_server_config_depth(options,
2161: item->filename, item->contents,
2162: includes, connectinfo,
1.365 djm 2163: (*inc_flags & SSHCFG_MATCH_ONLY
2164: ? SSHCFG_MATCH_ONLY : (oactive
2165: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2166: activep, depth + 1);
2167: *activep = oactive;
2168: TAILQ_INSERT_TAIL(includes, item, entry);
2169: }
2170: globfree(&gbuf);
2171: free(arg);
2172: }
2173: if (value == 0) {
1.380 djm 2174: fatal("%s line %d: %s missing filename argument",
2175: filename, linenum, keyword);
1.360 djm 2176: }
2177: break;
2178:
1.153 dtucker 2179: case sMatch:
2180: if (cmdline)
2181: fatal("Match directive not supported as a command-line "
1.379 djm 2182: "option");
1.380 djm 2183: value = match_cfg_line(&str, linenum,
1.365 djm 2184: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2185: if (value < 0)
2186: fatal("%s line %d: Bad Match condition", filename,
2187: linenum);
1.365 djm 2188: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2189: /*
2190: * The MATCH_ONLY flag is applicable only until the first
2191: * match block.
2192: */
1.365 djm 2193: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2194: /*
2195: * If match_cfg_line() didn't consume all its arguments then
2196: * arrange for the extra arguments check below to fail.
2197: */
2198: if (str == NULL || *str == '\0')
2199: argv_consume(&ac);
1.156 dtucker 2200: break;
2201:
1.330 djm 2202: case sPermitListen:
1.156 dtucker 2203: case sPermitOpen:
1.330 djm 2204: if (opcode == sPermitListen) {
2205: uintptr = &options->num_permitted_listens;
2206: chararrayptr = &options->permitted_listens;
1.329 djm 2207: } else {
2208: uintptr = &options->num_permitted_opens;
2209: chararrayptr = &options->permitted_opens;
2210: }
1.380 djm 2211: arg = argv_next(&ac, &av);
1.156 dtucker 2212: if (!arg || *arg == '\0')
1.380 djm 2213: fatal("%s line %d: %s missing argument.",
2214: filename, linenum, keyword);
1.329 djm 2215: uvalue = *uintptr; /* modified later */
1.310 djm 2216: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 2217: if (*activep && uvalue == 0) {
2218: *uintptr = 1;
2219: *chararrayptr = xcalloc(1,
2220: sizeof(**chararrayptr));
2221: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 2222: }
1.156 dtucker 2223: break;
2224: }
1.380 djm 2225: for (; arg != NULL && *arg != '\0'; arg = argv_next(&ac, &av)) {
1.333 djm 2226: if (opcode == sPermitListen &&
2227: strchr(arg, ':') == NULL) {
2228: /*
2229: * Allow bare port number for PermitListen
2230: * to indicate a wildcard listen host.
2231: */
2232: xasprintf(&arg2, "*:%s", arg);
2233: } else {
2234: arg2 = xstrdup(arg);
1.383 dtucker 2235: p = hpdelim(&arg);
2236: if (p == NULL) {
1.380 djm 2237: fatal("%s line %d: %s missing host",
2238: filename, linenum, keyword);
1.333 djm 2239: }
2240: p = cleanhostname(p);
1.329 djm 2241: }
2242: if (arg == NULL ||
2243: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2244: fatal("%s line %d: %s bad port number",
2245: filename, linenum, keyword);
1.329 djm 2246: }
2247: if (*activep && uvalue == 0) {
1.380 djm 2248: opt_array_append(filename, linenum, keyword,
1.329 djm 2249: chararrayptr, uintptr, arg2);
1.314 djm 2250: }
2251: free(arg2);
1.159 dtucker 2252: }
1.153 dtucker 2253: break;
2254:
1.158 dtucker 2255: case sForceCommand:
1.380 djm 2256: if (str == NULL || *str == '\0')
2257: fatal("%s line %d: %s missing argument.",
2258: filename, linenum, keyword);
2259: len = strspn(str, WHITESPACE);
1.158 dtucker 2260: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2261: options->adm_forced_command = xstrdup(str + len);
2262: argv_consume(&ac);
2263: break;
1.158 dtucker 2264:
1.176 djm 2265: case sChrootDirectory:
2266: charptr = &options->chroot_directory;
1.177 djm 2267:
1.380 djm 2268: arg = argv_next(&ac, &av);
1.177 djm 2269: if (!arg || *arg == '\0')
1.380 djm 2270: fatal("%s line %d: %s missing argument.",
2271: filename, linenum, keyword);
1.177 djm 2272: if (*activep && *charptr == NULL)
2273: *charptr = xstrdup(arg);
2274: break;
1.176 djm 2275:
1.204 djm 2276: case sTrustedUserCAKeys:
2277: charptr = &options->trusted_user_ca_keys;
2278: goto parse_filename;
2279:
2280: case sRevokedKeys:
2281: charptr = &options->revoked_keys_file;
2282: goto parse_filename;
2283:
1.355 djm 2284: case sSecurityKeyProvider:
2285: charptr = &options->sk_provider;
1.380 djm 2286: arg = argv_next(&ac, &av);
1.356 djm 2287: if (!arg || *arg == '\0')
1.380 djm 2288: fatal("%s line %d: %s missing argument.",
2289: filename, linenum, keyword);
1.356 djm 2290: if (*activep && *charptr == NULL) {
2291: *charptr = strcasecmp(arg, "internal") == 0 ?
2292: xstrdup(arg) : derelativise_path(arg);
2293: /* increase optional counter */
2294: if (intptr != NULL)
2295: *intptr = *intptr + 1;
2296: }
2297: break;
1.355 djm 2298:
1.213 djm 2299: case sIPQoS:
1.380 djm 2300: arg = argv_next(&ac, &av);
2301: if (!arg || *arg == '\0')
2302: fatal("%s line %d: %s missing argument.",
2303: filename, linenum, keyword);
1.213 djm 2304: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2305: fatal("%s line %d: Bad %s value: %s",
2306: filename, linenum, keyword, arg);
2307: arg = argv_next(&ac, &av);
1.213 djm 2308: if (arg == NULL)
2309: value2 = value;
2310: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2311: fatal("%s line %d: Bad %s value: %s",
2312: filename, linenum, keyword, arg);
1.213 djm 2313: if (*activep) {
2314: options->ip_qos_interactive = value;
2315: options->ip_qos_bulk = value2;
2316: }
2317: break;
2318:
1.225 djm 2319: case sVersionAddendum:
1.380 djm 2320: if (str == NULL || *str == '\0')
2321: fatal("%s line %d: %s missing argument.",
2322: filename, linenum, keyword);
2323: len = strspn(str, WHITESPACE);
2324: if (strchr(str + len, '\r') != NULL) {
2325: fatal("%.200s line %d: Invalid %s argument",
2326: filename, linenum, keyword);
2327: }
2328: if ((arg = strchr(line, '#')) != NULL) {
2329: *arg = '\0';
2330: rtrim(line);
2331: }
1.225 djm 2332: if (*activep && options->version_addendum == NULL) {
1.380 djm 2333: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2334: options->version_addendum = xstrdup("");
2335: else
1.380 djm 2336: options->version_addendum = xstrdup(str + len);
1.225 djm 2337: }
1.380 djm 2338: argv_consume(&ac);
2339: break;
1.225 djm 2340:
1.231 djm 2341: case sAuthorizedKeysCommand:
1.380 djm 2342: charptr = &options->authorized_keys_command;
2343: parse_command:
2344: len = strspn(str, WHITESPACE);
2345: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2346: fatal("%.200s line %d: %s must be an absolute path",
2347: filename, linenum, keyword);
2348: }
1.393 ! djm 2349: if (*activep && *charptr == NULL)
1.380 djm 2350: *charptr = xstrdup(str + len);
2351: argv_consume(&ac);
2352: break;
1.231 djm 2353:
2354: case sAuthorizedKeysCommandUser:
2355: charptr = &options->authorized_keys_command_user;
1.380 djm 2356: parse_localuser:
2357: arg = argv_next(&ac, &av);
2358: if (!arg || *arg == '\0') {
2359: fatal("%s line %d: missing %s argument.",
2360: filename, linenum, keyword);
2361: }
1.231 djm 2362: if (*activep && *charptr == NULL)
2363: *charptr = xstrdup(arg);
2364: break;
2365:
1.270 djm 2366: case sAuthorizedPrincipalsCommand:
1.380 djm 2367: charptr = &options->authorized_principals_command;
2368: goto parse_command;
1.270 djm 2369:
2370: case sAuthorizedPrincipalsCommandUser:
2371: charptr = &options->authorized_principals_command_user;
1.380 djm 2372: goto parse_localuser;
1.270 djm 2373:
1.232 djm 2374: case sAuthenticationMethods:
1.380 djm 2375: found = options->num_auth_methods == 0;
2376: value = 0; /* seen "any" pseudo-method */
2377: value2 = 0; /* successfully parsed any method */
2378: while ((arg = argv_next(&ac, &av)) != NULL) {
2379: if (strcmp(arg, "any") == 0) {
2380: if (options->num_auth_methods > 0) {
2381: fatal("%s line %d: \"any\" must "
2382: "appear alone in %s",
2383: filename, linenum, keyword);
1.291 djm 2384: }
1.380 djm 2385: value = 1;
2386: } else if (value) {
2387: fatal("%s line %d: \"any\" must appear "
2388: "alone in %s", filename, linenum, keyword);
2389: } else if (auth2_methods_valid(arg, 0) != 0) {
2390: fatal("%s line %d: invalid %s method list.",
2391: filename, linenum, keyword);
1.291 djm 2392: }
1.380 djm 2393: value2 = 1;
2394: if (!found || !*activep)
2395: continue;
2396: opt_array_append(filename, linenum, keyword,
2397: &options->auth_methods,
2398: &options->num_auth_methods, arg);
2399: }
2400: if (value2 == 0) {
2401: fatal("%s line %d: no %s specified",
2402: filename, linenum, keyword);
1.232 djm 2403: }
1.380 djm 2404: break;
1.232 djm 2405:
1.251 millert 2406: case sStreamLocalBindMask:
1.380 djm 2407: arg = argv_next(&ac, &av);
1.251 millert 2408: if (!arg || *arg == '\0')
1.380 djm 2409: fatal("%s line %d: %s missing argument.",
2410: filename, linenum, keyword);
1.251 millert 2411: /* Parse mode in octal format */
2412: value = strtol(arg, &p, 8);
2413: if (arg == p || value < 0 || value > 0777)
1.380 djm 2414: fatal("%s line %d: Invalid %s.",
2415: filename, linenum, keyword);
1.268 djm 2416: if (*activep)
2417: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2418: break;
2419:
2420: case sStreamLocalBindUnlink:
2421: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2422: goto parse_flag;
2423:
1.256 djm 2424: case sFingerprintHash:
1.380 djm 2425: arg = argv_next(&ac, &av);
1.256 djm 2426: if (!arg || *arg == '\0')
1.380 djm 2427: fatal("%s line %d: %s missing argument.",
2428: filename, linenum, keyword);
1.256 djm 2429: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2430: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2431: filename, linenum, keyword, arg);
1.256 djm 2432: if (*activep)
2433: options->fingerprint_hash = value;
2434: break;
2435:
1.309 djm 2436: case sExposeAuthInfo:
2437: intptr = &options->expose_userauth_info;
2438: goto parse_flag;
2439:
1.316 djm 2440: case sRDomain:
2441: charptr = &options->routing_domain;
1.380 djm 2442: arg = argv_next(&ac, &av);
1.316 djm 2443: if (!arg || *arg == '\0')
1.380 djm 2444: fatal("%s line %d: %s missing argument.",
2445: filename, linenum, keyword);
1.316 djm 2446: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2447: !valid_rdomain(arg))
1.380 djm 2448: fatal("%s line %d: invalid routing domain",
1.316 djm 2449: filename, linenum);
2450: if (*activep && *charptr == NULL)
2451: *charptr = xstrdup(arg);
1.321 dtucker 2452: break;
1.316 djm 2453:
1.386 djm 2454: case sRequiredRSASize:
2455: intptr = &options->required_rsa_size;
2456: goto parse_int;
2457:
1.389 djm 2458: case sChannelTimeout:
2459: uvalue = options->num_channel_timeouts;
2460: i = 0;
2461: while ((arg = argv_next(&ac, &av)) != NULL) {
2462: /* Allow "none" only in first position */
2463: if (strcasecmp(arg, "none") == 0) {
2464: if (i > 0 || ac > 0) {
2465: error("%s line %d: keyword %s \"none\" "
2466: "argument must appear alone.",
2467: filename, linenum, keyword);
2468: goto out;
2469: }
2470: } else if (parse_timeout(arg, NULL, NULL) != 0) {
2471: fatal("%s line %d: invalid channel timeout %s",
2472: filename, linenum, arg);
2473: }
2474: if (!*activep || uvalue != 0)
2475: continue;
2476: opt_array_append(filename, linenum, keyword,
2477: &options->channel_timeouts,
2478: &options->num_channel_timeouts, arg);
2479: }
2480: break;
2481:
1.390 djm 2482: case sUnusedConnectionTimeout:
2483: intptr = &options->unused_connection_timeout;
2484: /* peek at first arg for "none" so we can reuse parse_time */
2485: if (av[0] != NULL && strcasecmp(av[0], "none") == 0) {
2486: (void)argv_next(&ac, &av); /* consume arg */
2487: if (*activep)
2488: *intptr = 0;
2489: break;
2490: }
2491: goto parse_time;
2492:
1.94 markus 2493: case sDeprecated:
1.295 djm 2494: case sIgnore:
1.121 jakob 2495: case sUnsupported:
1.295 djm 2496: do_log2(opcode == sIgnore ?
2497: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2498: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2499: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2500: keyword);
2501: argv_consume(&ac);
1.94 markus 2502: break;
2503:
2504: default:
2505: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2506: filename, linenum, keyword, opcode);
2507: }
2508: /* Check that there is no garbage at end of line. */
2509: if (ac > 0) {
2510: error("%.200s line %d: keyword %s extra arguments "
2511: "at end of line", filename, linenum, keyword);
2512: goto out;
1.94 markus 2513: }
1.380 djm 2514:
2515: /* success */
2516: ret = 0;
2517: out:
2518: argv_free(oav, oac);
2519: return ret;
1.94 markus 2520: }
2521:
1.360 djm 2522: int
2523: process_server_config_line(ServerOptions *options, char *line,
2524: const char *filename, int linenum, int *activep,
2525: struct connection_info *connectinfo, struct include_list *includes)
2526: {
1.365 djm 2527: int inc_flags = 0;
2528:
1.360 djm 2529: return process_server_config_line_depth(options, line, filename,
1.365 djm 2530: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2531: }
2532:
2533:
1.94 markus 2534: /* Reads the server configuration file. */
1.25 markus 2535:
1.94 markus 2536: void
1.338 markus 2537: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2538: {
1.366 markus 2539: struct stat st;
1.331 markus 2540: char *line = NULL, *cp;
2541: size_t linesize = 0;
1.94 markus 2542: FILE *f;
1.388 dtucker 2543: int r;
1.81 stevesk 2544:
1.371 djm 2545: debug2_f("filename %s", filename);
1.134 djm 2546: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2547: perror(filename);
2548: exit(1);
2549: }
1.338 markus 2550: sshbuf_reset(conf);
1.366 markus 2551: /* grow buffer, so realloc is avoided for large config files */
2552: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2553: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2554: fatal_fr(r, "allocate");
1.331 markus 2555: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2556: /*
1.380 djm 2557: * Strip whitespace
1.135 deraadt 2558: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2559: * line numbers later for error messages
2560: */
2561: cp = line + strspn(line, " \t\r");
1.338 markus 2562: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2563: fatal_fr(r, "sshbuf_put");
1.134 djm 2564: }
1.331 markus 2565: free(line);
1.338 markus 2566: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2567: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2568: fclose(f);
1.371 djm 2569: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2570: }
2571:
2572: void
1.226 dtucker 2573: parse_server_match_config(ServerOptions *options,
1.360 djm 2574: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2575: {
2576: ServerOptions mo;
2577:
2578: initialize_server_options(&mo);
1.360 djm 2579: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2580: connectinfo, 0);
1.168 dtucker 2581: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2582: }
2583:
1.226 dtucker 2584: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2585: {
2586: char *p;
2587:
2588: while ((p = strsep(&spec, ",")) && *p != '\0') {
2589: if (strncmp(p, "addr=", 5) == 0) {
2590: ci->address = xstrdup(p + 5);
2591: } else if (strncmp(p, "host=", 5) == 0) {
2592: ci->host = xstrdup(p + 5);
2593: } else if (strncmp(p, "user=", 5) == 0) {
2594: ci->user = xstrdup(p + 5);
2595: } else if (strncmp(p, "laddr=", 6) == 0) {
2596: ci->laddress = xstrdup(p + 6);
1.317 djm 2597: } else if (strncmp(p, "rdomain=", 8) == 0) {
2598: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2599: } else if (strncmp(p, "lport=", 6) == 0) {
2600: ci->lport = a2port(p + 6);
2601: if (ci->lport == -1) {
2602: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2603: " specification %s\n", p+6, p);
1.226 dtucker 2604: return -1;
2605: }
2606: } else {
2607: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2608: p);
1.226 dtucker 2609: return -1;
2610: }
2611: }
2612: return 0;
2613: }
2614:
1.168 dtucker 2615: /*
2616: * Copy any supported values that are set.
2617: *
1.195 jj 2618: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2619: * array values that are not used pre-authentication, because any that we
1.328 djm 2620: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2621: */
1.153 dtucker 2622: void
1.168 dtucker 2623: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2624: {
1.247 djm 2625: #define M_CP_INTOPT(n) do {\
2626: if (src->n != -1) \
2627: dst->n = src->n; \
2628: } while (0)
2629:
1.168 dtucker 2630: M_CP_INTOPT(password_authentication);
2631: M_CP_INTOPT(gss_authentication);
2632: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2633: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2634: M_CP_INTOPT(kerberos_authentication);
2635: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2636: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2637: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2638: M_CP_INTOPT(permit_root_login);
1.188 djm 2639: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2640: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2641:
2642: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2643: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2644: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2645: M_CP_INTOPT(disable_forwarding);
1.309 djm 2646: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2647: M_CP_INTOPT(permit_tun);
1.251 millert 2648: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2649: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2650: M_CP_INTOPT(x11_display_offset);
2651: M_CP_INTOPT(x11_forwarding);
2652: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2653: M_CP_INTOPT(permit_tty);
1.250 djm 2654: M_CP_INTOPT(permit_user_rc);
1.180 djm 2655: M_CP_INTOPT(max_sessions);
1.184 dtucker 2656: M_CP_INTOPT(max_authtries);
1.300 markus 2657: M_CP_INTOPT(client_alive_count_max);
2658: M_CP_INTOPT(client_alive_interval);
1.213 djm 2659: M_CP_INTOPT(ip_qos_interactive);
2660: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2661: M_CP_INTOPT(rekey_limit);
2662: M_CP_INTOPT(rekey_interval);
1.308 djm 2663: M_CP_INTOPT(log_level);
1.386 djm 2664: M_CP_INTOPT(required_rsa_size);
1.390 djm 2665: M_CP_INTOPT(unused_connection_timeout);
1.289 djm 2666:
2667: /*
2668: * The bind_mask is a mode_t that may be unsigned, so we can't use
2669: * M_CP_INTOPT - it does a signed comparison that causes compiler
2670: * warnings.
2671: */
1.290 dtucker 2672: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2673: dst->fwd_opts.streamlocal_bind_mask =
2674: src->fwd_opts.streamlocal_bind_mask;
2675: }
1.247 djm 2676:
2677: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2678: #define M_CP_STROPT(n) do {\
2679: if (src->n != NULL && dst->n != src->n) { \
2680: free(dst->n); \
2681: dst->n = src->n; \
2682: } \
2683: } while(0)
1.314 djm 2684: #define M_CP_STRARRAYOPT(s, num_s) do {\
2685: u_int i; \
2686: if (src->num_s != 0) { \
2687: for (i = 0; i < dst->num_s; i++) \
2688: free(dst->s[i]); \
2689: free(dst->s); \
2690: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2691: for (i = 0; i < src->num_s; i++) \
2692: dst->s[i] = xstrdup(src->s[i]); \
2693: dst->num_s = src->num_s; \
1.312 djm 2694: } \
2695: } while(0)
1.168 dtucker 2696:
1.218 djm 2697: /* See comment in servconf.h */
2698: COPY_MATCH_STRING_OPTS();
1.282 djm 2699:
2700: /* Arguments that accept '+...' need to be expanded */
2701: assemble_algorithms(dst);
1.216 djm 2702:
1.217 dtucker 2703: /*
2704: * The only things that should be below this point are string options
2705: * which are only used after authentication.
2706: */
1.168 dtucker 2707: if (preauth)
2708: return;
1.219 djm 2709:
1.283 djm 2710: /* These options may be "none" to clear a global setting */
1.168 dtucker 2711: M_CP_STROPT(adm_forced_command);
1.283 djm 2712: if (option_clear_or_none(dst->adm_forced_command)) {
2713: free(dst->adm_forced_command);
2714: dst->adm_forced_command = NULL;
2715: }
1.176 djm 2716: M_CP_STROPT(chroot_directory);
1.283 djm 2717: if (option_clear_or_none(dst->chroot_directory)) {
2718: free(dst->chroot_directory);
2719: dst->chroot_directory = NULL;
2720: }
1.153 dtucker 2721: }
1.168 dtucker 2722:
2723: #undef M_CP_INTOPT
2724: #undef M_CP_STROPT
1.219 djm 2725: #undef M_CP_STRARRAYOPT
1.153 dtucker 2726:
1.360 djm 2727: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2728: static void
1.360 djm 2729: parse_server_config_depth(ServerOptions *options, const char *filename,
2730: struct sshbuf *conf, struct include_list *includes,
2731: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2732: {
1.360 djm 2733: int linenum, bad_options = 0;
1.136 dtucker 2734: char *cp, *obuf, *cbuf;
1.134 djm 2735:
1.360 djm 2736: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2737: fatal("Too many recursive configuration includes");
2738:
1.371 djm 2739: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2740: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2741:
1.287 djm 2742: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2743: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2744: linenum = 1;
1.140 deraadt 2745: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2746: if (process_server_config_line_depth(options, cp,
1.365 djm 2747: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2748: depth, includes) != 0)
1.94 markus 2749: bad_options++;
1.1 deraadt 2750: }
1.239 djm 2751: free(obuf);
1.78 stevesk 2752: if (bad_options > 0)
2753: fatal("%s: terminating, %d bad configuration options",
2754: filename, bad_options);
1.360 djm 2755: }
2756:
2757: void
2758: parse_server_config(ServerOptions *options, const char *filename,
2759: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2760: struct connection_info *connectinfo, int reexec)
1.360 djm 2761: {
2762: int active = connectinfo ? 0 : 1;
2763: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2764: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2765: if (!reexec)
2766: process_queued_listen_addrs(options);
1.182 dtucker 2767: }
2768:
2769: static const char *
1.221 djm 2770: fmt_multistate_int(int val, const struct multistate *m)
2771: {
2772: u_int i;
2773:
2774: for (i = 0; m[i].key != NULL; i++) {
2775: if (m[i].value == val)
2776: return m[i].key;
2777: }
2778: return "UNKNOWN";
2779: }
2780:
2781: static const char *
1.182 dtucker 2782: fmt_intarg(ServerOpCodes code, int val)
2783: {
1.221 djm 2784: if (val == -1)
2785: return "unset";
2786: switch (code) {
2787: case sAddressFamily:
2788: return fmt_multistate_int(val, multistate_addressfamily);
2789: case sPermitRootLogin:
2790: return fmt_multistate_int(val, multistate_permitrootlogin);
2791: case sGatewayPorts:
2792: return fmt_multistate_int(val, multistate_gatewayports);
2793: case sCompression:
2794: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2795: case sAllowTcpForwarding:
2796: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2797: case sAllowStreamLocalForwarding:
2798: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2799: case sIgnoreRhosts:
2800: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2801: case sFingerprintHash:
2802: return ssh_digest_alg_name(val);
1.221 djm 2803: default:
2804: switch (val) {
2805: case 0:
2806: return "no";
2807: case 1:
2808: return "yes";
2809: default:
2810: return "UNKNOWN";
2811: }
1.182 dtucker 2812: }
2813: }
2814:
2815: static void
2816: dump_cfg_int(ServerOpCodes code, int val)
2817: {
1.390 djm 2818: if (code == sUnusedConnectionTimeout && val == 0) {
2819: printf("%s none\n", lookup_opcode_name(code));
2820: return;
2821: }
1.182 dtucker 2822: printf("%s %d\n", lookup_opcode_name(code), val);
2823: }
2824:
2825: static void
1.263 dtucker 2826: dump_cfg_oct(ServerOpCodes code, int val)
2827: {
2828: printf("%s 0%o\n", lookup_opcode_name(code), val);
2829: }
2830:
2831: static void
1.182 dtucker 2832: dump_cfg_fmtint(ServerOpCodes code, int val)
2833: {
2834: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2835: }
2836:
2837: static void
2838: dump_cfg_string(ServerOpCodes code, const char *val)
2839: {
1.257 djm 2840: printf("%s %s\n", lookup_opcode_name(code),
2841: val == NULL ? "none" : val);
1.182 dtucker 2842: }
2843:
2844: static void
2845: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2846: {
2847: u_int i;
2848:
2849: for (i = 0; i < count; i++)
1.219 djm 2850: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2851: }
2852:
2853: static void
2854: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2855: {
2856: u_int i;
2857:
1.391 djm 2858: switch (code) {
2859: case sAuthenticationMethods:
2860: case sChannelTimeout:
2861: break;
2862: default:
2863: if (count <= 0)
2864: return;
2865: break;
2866: }
2867:
1.219 djm 2868: printf("%s", lookup_opcode_name(code));
2869: for (i = 0; i < count; i++)
2870: printf(" %s", vals[i]);
1.291 djm 2871: if (code == sAuthenticationMethods && count == 0)
2872: printf(" any");
1.389 djm 2873: else if (code == sChannelTimeout && count == 0)
2874: printf(" none");
1.219 djm 2875: printf("\n");
1.182 dtucker 2876: }
2877:
1.315 djm 2878: static char *
2879: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2880: {
1.315 djm 2881: int r;
1.182 dtucker 2882: struct addrinfo *ai;
1.315 djm 2883: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2884: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2885:
1.263 dtucker 2886: /*
2887: * ListenAddress must be after Port. add_one_listen_addr pushes
2888: * addresses onto a stack, so to maintain ordering we need to
2889: * print these in reverse order.
2890: */
1.315 djm 2891: for (ai = la->addrs; ai; ai = ai->ai_next) {
2892: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2893: sizeof(addr), port, sizeof(port),
2894: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2895: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2896: continue;
2897: }
2898: laddr2 = laddr1;
2899: if (ai->ai_family == AF_INET6) {
2900: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2901: addr, port,
2902: la->rdomain == NULL ? "" : " rdomain ",
2903: la->rdomain == NULL ? "" : la->rdomain,
2904: laddr2);
1.182 dtucker 2905: } else {
1.315 djm 2906: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2907: addr, port,
2908: la->rdomain == NULL ? "" : " rdomain ",
2909: la->rdomain == NULL ? "" : la->rdomain,
2910: laddr2);
1.182 dtucker 2911: }
1.315 djm 2912: free(laddr2);
2913: }
2914: return laddr1;
2915: }
2916:
2917: void
2918: dump_config(ServerOptions *o)
2919: {
2920: char *s;
2921: u_int i;
2922:
2923: /* these are usually at the top of the config */
2924: for (i = 0; i < o->num_ports; i++)
2925: printf("port %d\n", o->ports[i]);
2926: dump_cfg_fmtint(sAddressFamily, o->address_family);
2927:
2928: for (i = 0; i < o->num_listen_addrs; i++) {
2929: s = format_listen_addrs(&o->listen_addrs[i]);
2930: printf("%s", s);
2931: free(s);
1.182 dtucker 2932: }
2933:
2934: /* integer arguments */
2935: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2936: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2937: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2938: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2939: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2940: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 2941: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 2942: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.390 djm 2943: dump_cfg_int(sUnusedConnectionTimeout, o->unused_connection_timeout);
1.182 dtucker 2944:
2945: /* formatted integer arguments */
2946: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2947: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2948: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2949: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2950: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2951: o->hostbased_uses_name_from_packet_only);
2952: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2953: #ifdef KRB5
1.182 dtucker 2954: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2955: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2956: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2957: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2958: #endif
2959: #ifdef GSSAPI
1.182 dtucker 2960: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2961: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2962: #endif
1.182 dtucker 2963: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2964: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2965: o->kbd_interactive_authentication);
2966: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2967: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2968: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2969: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2970: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2971: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2972: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2973: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2974: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2975: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2976: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2977: dump_cfg_fmtint(sUseDNS, o->use_dns);
2978: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2979: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2980: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2981: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2982: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2983: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2984: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2985:
2986: /* string arguments */
2987: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 2988: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 2989: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 2990: dump_cfg_string(sCiphers, o->ciphers);
2991: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 2992: dump_cfg_string(sBanner, o->banner);
2993: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2994: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2995: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2996: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 2997: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 2998: dump_cfg_string(sAuthorizedPrincipalsFile,
2999: o->authorized_principals_file);
1.261 dtucker 3000: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
3001: ? "none" : o->version_addendum);
1.231 djm 3002: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
3003: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 3004: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
3005: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 3006: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 3007: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
3008: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 3009: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 3010: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 3011: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 3012: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 3013:
3014: /* string arguments requiring a lookup */
3015: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
3016: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
3017:
3018: /* string array arguments */
1.219 djm 3019: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
3020: o->authorized_keys_files);
1.182 dtucker 3021: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 3022: o->host_key_files);
1.261 dtucker 3023: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 3024: o->host_cert_files);
1.182 dtucker 3025: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
3026: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
3027: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3028: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3029: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3030: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3031: dump_cfg_strarray_oneline(sAuthenticationMethods,
3032: o->num_auth_methods, o->auth_methods);
1.370 djm 3033: dump_cfg_strarray_oneline(sLogVerbose,
3034: o->num_log_verbose, o->log_verbose);
1.389 djm 3035: dump_cfg_strarray_oneline(sChannelTimeout,
3036: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3037:
3038: /* other arguments */
3039: for (i = 0; i < o->num_subsystems; i++)
3040: printf("subsystem %s %s\n", o->subsystem_name[i],
3041: o->subsystem_args[i]);
3042:
3043: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3044: o->max_startups_rate, o->max_startups);
1.372 dtucker 3045: printf("persourcemaxstartups ");
3046: if (o->per_source_max_startups == INT_MAX)
3047: printf("none\n");
3048: else
3049: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3050: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3051: o->per_source_masklen_ipv6);
1.182 dtucker 3052:
1.318 djm 3053: s = NULL;
3054: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3055: if (tunmode_desc[i].val == o->permit_tun) {
3056: s = tunmode_desc[i].text;
3057: break;
3058: }
1.318 djm 3059: }
1.182 dtucker 3060: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3061:
1.214 stevesk 3062: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3063: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3064:
1.284 dtucker 3065: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3066: o->rekey_interval);
1.182 dtucker 3067:
1.310 djm 3068: printf("permitopen");
3069: if (o->num_permitted_opens == 0)
3070: printf(" any");
3071: else {
3072: for (i = 0; i < o->num_permitted_opens; i++)
3073: printf(" %s", o->permitted_opens[i]);
1.329 djm 3074: }
3075: printf("\n");
1.330 djm 3076: printf("permitlisten");
3077: if (o->num_permitted_listens == 0)
1.329 djm 3078: printf(" any");
3079: else {
1.330 djm 3080: for (i = 0; i < o->num_permitted_listens; i++)
3081: printf(" %s", o->permitted_listens[i]);
1.310 djm 3082: }
3083: printf("\n");
1.334 djm 3084:
1.367 djm 3085: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3086: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3087: } else {
3088: printf("permituserenvironment %s\n",
1.367 djm 3089: o->permit_user_env_allowlist);
1.334 djm 3090: }
3091:
1.354 djm 3092: printf("pubkeyauthoptions");
3093: if (o->pubkey_auth_options == 0)
3094: printf(" none");
3095: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3096: printf(" touch-required");
1.368 djm 3097: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3098: printf(" verify-required");
1.354 djm 3099: printf("\n");
1.1 deraadt 3100: }
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