Annotation of src/usr.bin/ssh/servconf.c, Revision 1.407
1.407 ! djm 1: /* $OpenBSD: servconf.c,v 1.406 2024/05/17 00:30:24 djm Exp $ */
1.1 deraadt 2: /*
1.26 deraadt 3: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4: * All rights reserved
1.34 markus 5: *
1.51 deraadt 6: * As far as I am concerned, the code I have written for this software
7: * can be used freely for any purpose. Any derived versions of this
8: * software must be clearly marked as such, and if the derived work is
9: * incompatible with the protocol description in the RFC file, it must be
10: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 11: */
1.1 deraadt 12:
1.152 stevesk 13: #include <sys/types.h>
14: #include <sys/socket.h>
1.179 djm 15: #include <sys/queue.h>
1.315 djm 16: #include <sys/sysctl.h>
1.366 markus 17: #include <sys/stat.h>
1.154 stevesk 18:
1.213 djm 19: #include <netinet/in.h>
20: #include <netinet/ip.h>
1.315 djm 21: #include <net/route.h>
1.213 djm 22:
1.235 dtucker 23: #include <ctype.h>
1.360 djm 24: #include <glob.h>
1.154 stevesk 25: #include <netdb.h>
1.165 dtucker 26: #include <pwd.h>
1.162 stevesk 27: #include <stdio.h>
1.161 stevesk 28: #include <stdlib.h>
1.160 stevesk 29: #include <string.h>
1.164 deraadt 30: #include <signal.h>
1.155 stevesk 31: #include <unistd.h>
1.259 deraadt 32: #include <limits.h>
1.164 deraadt 33: #include <stdarg.h>
1.182 dtucker 34: #include <errno.h>
1.236 dtucker 35: #include <util.h>
1.1 deraadt 36:
1.164 deraadt 37: #include "xmalloc.h"
1.1 deraadt 38: #include "ssh.h"
1.62 markus 39: #include "log.h"
1.338 markus 40: #include "sshbuf.h"
1.251 millert 41: #include "misc.h"
1.1 deraadt 42: #include "servconf.h"
1.60 markus 43: #include "pathnames.h"
1.62 markus 44: #include "cipher.h"
1.339 markus 45: #include "sshkey.h"
1.66 markus 46: #include "kex.h"
47: #include "mac.h"
1.153 dtucker 48: #include "match.h"
1.156 dtucker 49: #include "channels.h"
1.165 dtucker 50: #include "groupaccess.h"
1.226 dtucker 51: #include "canohost.h"
52: #include "packet.h"
1.338 markus 53: #include "ssherr.h"
1.232 djm 54: #include "hostfile.h"
55: #include "auth.h"
1.252 djm 56: #include "myproposal.h"
1.256 djm 57: #include "digest.h"
1.345 djm 58:
1.315 djm 59: static void add_listen_addr(ServerOptions *, const char *,
60: const char *, int);
61: static void add_one_listen_addr(ServerOptions *, const char *,
62: const char *, int);
1.364 djm 63: static void parse_server_config_depth(ServerOptions *options,
64: const char *filename, struct sshbuf *conf, struct include_list *includes,
1.360 djm 65: struct connection_info *connectinfo, int flags, int *activep, int depth);
1.29 markus 66:
1.338 markus 67: extern struct sshbuf *cfg;
1.62 markus 68:
1.1 deraadt 69: /* Initializes the server options to their default values. */
70:
1.34 markus 71: void
1.25 markus 72: initialize_server_options(ServerOptions *options)
1.1 deraadt 73: {
1.25 markus 74: memset(options, 0, sizeof(*options));
1.29 markus 75: options->num_ports = 0;
76: options->ports_from_cmdline = 0;
1.266 dtucker 77: options->queued_listen_addrs = NULL;
78: options->num_queued_listens = 0;
1.29 markus 79: options->listen_addrs = NULL;
1.315 djm 80: options->num_listen_addrs = 0;
1.138 djm 81: options->address_family = -1;
1.316 djm 82: options->routing_domain = NULL;
1.54 markus 83: options->num_host_key_files = 0;
1.203 djm 84: options->num_host_cert_files = 0;
1.240 markus 85: options->host_key_agent = NULL;
1.36 markus 86: options->pid_file = NULL;
1.25 markus 87: options->login_grace_time = -1;
1.279 chris 88: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 89: options->ignore_rhosts = -1;
90: options->ignore_user_known_hosts = -1;
91: options->print_motd = -1;
1.72 stevesk 92: options->print_lastlog = -1;
1.25 markus 93: options->x11_forwarding = -1;
94: options->x11_display_offset = -1;
1.99 stevesk 95: options->x11_use_localhost = -1;
1.244 djm 96: options->permit_tty = -1;
1.250 djm 97: options->permit_user_rc = -1;
1.42 markus 98: options->xauth_location = NULL;
1.25 markus 99: options->strict_modes = -1;
1.129 markus 100: options->tcp_keep_alive = -1;
1.101 markus 101: options->log_facility = SYSLOG_FACILITY_NOT_SET;
102: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.370 djm 103: options->num_log_verbose = 0;
104: options->log_verbose = NULL;
1.75 markus 105: options->hostbased_authentication = -1;
106: options->hostbased_uses_name_from_packet_only = -1;
1.375 dtucker 107: options->hostbased_accepted_algos = NULL;
1.276 markus 108: options->hostkeyalgorithms = NULL;
1.54 markus 109: options->pubkey_authentication = -1;
1.354 djm 110: options->pubkey_auth_options = -1;
1.374 dtucker 111: options->pubkey_accepted_algos = NULL;
1.25 markus 112: options->kerberos_authentication = -1;
113: options->kerberos_or_local_passwd = -1;
114: options->kerberos_ticket_cleanup = -1;
1.130 jakob 115: options->kerberos_get_afs_token = -1;
1.125 markus 116: options->gss_authentication=-1;
117: options->gss_cleanup_creds = -1;
1.271 djm 118: options->gss_strict_acceptor = -1;
1.25 markus 119: options->password_authentication = -1;
1.52 markus 120: options->kbd_interactive_authentication = -1;
1.25 markus 121: options->permit_empty_passwd = -1;
1.113 markus 122: options->permit_user_env = -1;
1.367 djm 123: options->permit_user_env_allowlist = NULL;
1.111 markus 124: options->compression = -1;
1.235 dtucker 125: options->rekey_limit = -1;
126: options->rekey_interval = -1;
1.53 markus 127: options->allow_tcp_forwarding = -1;
1.251 millert 128: options->allow_streamlocal_forwarding = -1;
1.178 pyr 129: options->allow_agent_forwarding = -1;
1.25 markus 130: options->num_allow_users = 0;
131: options->num_deny_users = 0;
132: options->num_allow_groups = 0;
133: options->num_deny_groups = 0;
1.33 markus 134: options->ciphers = NULL;
1.66 markus 135: options->macs = NULL;
1.211 djm 136: options->kex_algorithms = NULL;
1.341 djm 137: options->ca_sign_algorithms = NULL;
1.251 millert 138: options->fwd_opts.gateway_ports = -1;
139: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
140: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 141: options->num_subsystems = 0;
1.50 markus 142: options->max_startups_begin = -1;
143: options->max_startups_rate = -1;
1.46 markus 144: options->max_startups = -1;
1.372 dtucker 145: options->per_source_max_startups = -1;
146: options->per_source_masklen_ipv4 = -1;
147: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 148: options->max_authtries = -1;
1.180 djm 149: options->max_sessions = -1;
1.57 markus 150: options->banner = NULL;
1.122 markus 151: options->use_dns = -1;
1.77 beck 152: options->client_alive_interval = -1;
153: options->client_alive_count_max = -1;
1.219 djm 154: options->num_authkeys_files = 0;
1.131 djm 155: options->num_accept_env = 0;
1.332 djm 156: options->num_setenv = 0;
1.145 reyk 157: options->permit_tun = -1;
1.310 djm 158: options->permitted_opens = NULL;
1.330 djm 159: options->permitted_listens = NULL;
1.158 dtucker 160: options->adm_forced_command = NULL;
1.176 djm 161: options->chroot_directory = NULL;
1.231 djm 162: options->authorized_keys_command = NULL;
163: options->authorized_keys_command_user = NULL;
1.204 djm 164: options->revoked_keys_file = NULL;
1.355 djm 165: options->sk_provider = NULL;
1.204 djm 166: options->trusted_user_ca_keys = NULL;
1.208 djm 167: options->authorized_principals_file = NULL;
1.270 djm 168: options->authorized_principals_command = NULL;
169: options->authorized_principals_command_user = NULL;
1.213 djm 170: options->ip_qos_interactive = -1;
171: options->ip_qos_bulk = -1;
1.225 djm 172: options->version_addendum = NULL;
1.256 djm 173: options->fingerprint_hash = -1;
1.301 djm 174: options->disable_forwarding = -1;
1.309 djm 175: options->expose_userauth_info = -1;
1.386 djm 176: options->required_rsa_size = -1;
1.389 djm 177: options->channel_timeouts = NULL;
178: options->num_channel_timeouts = 0;
1.390 djm 179: options->unused_connection_timeout = -1;
1.406 djm 180: options->sshd_session_path = NULL;
1.1 deraadt 181: }
182:
1.257 djm 183: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
184: static int
185: option_clear_or_none(const char *o)
186: {
187: return o == NULL || strcasecmp(o, "none") == 0;
188: }
189:
1.282 djm 190: static void
191: assemble_algorithms(ServerOptions *o)
192: {
1.341 djm 193: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 194: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 195: int r;
1.335 djm 196:
197: all_cipher = cipher_alg_list(',', 0);
198: all_mac = mac_alg_list(',');
199: all_kex = kex_alg_list(',');
200: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 201: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 202: /* remove unsupported algos from default lists */
1.367 djm 203: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
204: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
205: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
206: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
207: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 208: #define ASSEMBLE(what, defaults, all) \
209: do { \
210: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 211: fatal_fr(r, "%s", #what); \
1.340 djm 212: } while (0)
1.358 dtucker 213: ASSEMBLE(ciphers, def_cipher, all_cipher);
214: ASSEMBLE(macs, def_mac, all_mac);
215: ASSEMBLE(kex_algorithms, def_kex, all_kex);
216: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 217: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 218: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 219: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 220: #undef ASSEMBLE
1.335 djm 221: free(all_cipher);
222: free(all_mac);
223: free(all_kex);
224: free(all_key);
1.341 djm 225: free(all_sig);
1.358 dtucker 226: free(def_cipher);
227: free(def_mac);
228: free(def_kex);
229: free(def_key);
230: free(def_sig);
1.282 djm 231: }
232:
1.314 djm 233: void
234: servconf_add_hostkey(const char *file, const int line,
1.344 djm 235: ServerOptions *options, const char *path, int userprovided)
1.314 djm 236: {
237: char *apath = derelativise_path(path);
238:
1.376 markus 239: opt_array_append2(file, line, "HostKey",
1.344 djm 240: &options->host_key_files, &options->host_key_file_userprovided,
241: &options->num_host_key_files, apath, userprovided);
1.314 djm 242: free(apath);
243: }
244:
245: void
246: servconf_add_hostcert(const char *file, const int line,
247: ServerOptions *options, const char *path)
248: {
249: char *apath = derelativise_path(path);
250:
1.376 markus 251: opt_array_append(file, line, "HostCertificate",
1.314 djm 252: &options->host_cert_files, &options->num_host_cert_files, apath);
253: free(apath);
254: }
255:
1.34 markus 256: void
1.25 markus 257: fill_default_server_options(ServerOptions *options)
1.1 deraadt 258: {
1.314 djm 259: u_int i;
1.257 djm 260:
1.54 markus 261: if (options->num_host_key_files == 0) {
1.293 naddy 262: /* fill default hostkeys */
1.314 djm 263: servconf_add_hostkey("[default]", 0, options,
1.344 djm 264: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 265: servconf_add_hostkey("[default]", 0, options,
1.344 djm 266: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 267: servconf_add_hostkey("[default]", 0, options,
1.344 djm 268: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 269: #ifdef WITH_XMSS
1.325 markus 270: servconf_add_hostkey("[default]", 0, options,
1.344 djm 271: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 272: #endif /* WITH_XMSS */
1.54 markus 273: }
1.203 djm 274: /* No certificates by default */
1.29 markus 275: if (options->num_ports == 0)
276: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 277: if (options->address_family == -1)
278: options->address_family = AF_UNSPEC;
1.29 markus 279: if (options->listen_addrs == NULL)
1.315 djm 280: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 281: if (options->pid_file == NULL)
1.257 djm 282: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 283: if (options->moduli_file == NULL)
284: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 285: if (options->login_grace_time == -1)
1.115 stevesk 286: options->login_grace_time = 120;
1.67 markus 287: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 288: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 289: if (options->ignore_rhosts == -1)
1.30 markus 290: options->ignore_rhosts = 1;
1.25 markus 291: if (options->ignore_user_known_hosts == -1)
292: options->ignore_user_known_hosts = 0;
293: if (options->print_motd == -1)
294: options->print_motd = 1;
1.72 stevesk 295: if (options->print_lastlog == -1)
296: options->print_lastlog = 1;
1.25 markus 297: if (options->x11_forwarding == -1)
1.30 markus 298: options->x11_forwarding = 0;
1.25 markus 299: if (options->x11_display_offset == -1)
1.30 markus 300: options->x11_display_offset = 10;
1.99 stevesk 301: if (options->x11_use_localhost == -1)
302: options->x11_use_localhost = 1;
1.42 markus 303: if (options->xauth_location == NULL)
1.257 djm 304: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 305: if (options->permit_tty == -1)
306: options->permit_tty = 1;
1.250 djm 307: if (options->permit_user_rc == -1)
308: options->permit_user_rc = 1;
1.25 markus 309: if (options->strict_modes == -1)
310: options->strict_modes = 1;
1.129 markus 311: if (options->tcp_keep_alive == -1)
312: options->tcp_keep_alive = 1;
1.101 markus 313: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 314: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 315: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 316: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 317: if (options->hostbased_authentication == -1)
318: options->hostbased_authentication = 0;
319: if (options->hostbased_uses_name_from_packet_only == -1)
320: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 321: if (options->pubkey_authentication == -1)
322: options->pubkey_authentication = 1;
1.354 djm 323: if (options->pubkey_auth_options == -1)
324: options->pubkey_auth_options = 0;
1.25 markus 325: if (options->kerberos_authentication == -1)
1.107 markus 326: options->kerberos_authentication = 0;
1.25 markus 327: if (options->kerberos_or_local_passwd == -1)
328: options->kerberos_or_local_passwd = 1;
329: if (options->kerberos_ticket_cleanup == -1)
330: options->kerberos_ticket_cleanup = 1;
1.130 jakob 331: if (options->kerberos_get_afs_token == -1)
332: options->kerberos_get_afs_token = 0;
1.125 markus 333: if (options->gss_authentication == -1)
334: options->gss_authentication = 0;
335: if (options->gss_cleanup_creds == -1)
336: options->gss_cleanup_creds = 1;
1.271 djm 337: if (options->gss_strict_acceptor == -1)
1.302 djm 338: options->gss_strict_acceptor = 1;
1.25 markus 339: if (options->password_authentication == -1)
340: options->password_authentication = 1;
1.52 markus 341: if (options->kbd_interactive_authentication == -1)
1.381 dtucker 342: options->kbd_interactive_authentication = 1;
1.25 markus 343: if (options->permit_empty_passwd == -1)
1.30 markus 344: options->permit_empty_passwd = 0;
1.334 djm 345: if (options->permit_user_env == -1) {
1.113 markus 346: options->permit_user_env = 0;
1.367 djm 347: options->permit_user_env_allowlist = NULL;
1.334 djm 348: }
1.111 markus 349: if (options->compression == -1)
1.359 dtucker 350: #ifdef WITH_ZLIB
1.337 sf 351: options->compression = COMP_DELAYED;
1.359 dtucker 352: #else
353: options->compression = COMP_NONE;
354: #endif
355:
1.235 dtucker 356: if (options->rekey_limit == -1)
357: options->rekey_limit = 0;
358: if (options->rekey_interval == -1)
359: options->rekey_interval = 0;
1.53 markus 360: if (options->allow_tcp_forwarding == -1)
1.233 djm 361: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 362: if (options->allow_streamlocal_forwarding == -1)
363: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 364: if (options->allow_agent_forwarding == -1)
365: options->allow_agent_forwarding = 1;
1.251 millert 366: if (options->fwd_opts.gateway_ports == -1)
367: options->fwd_opts.gateway_ports = 0;
1.46 markus 368: if (options->max_startups == -1)
1.234 dtucker 369: options->max_startups = 100;
1.50 markus 370: if (options->max_startups_rate == -1)
1.234 dtucker 371: options->max_startups_rate = 30; /* 30% */
1.50 markus 372: if (options->max_startups_begin == -1)
1.234 dtucker 373: options->max_startups_begin = 10;
1.372 dtucker 374: if (options->per_source_max_startups == -1)
375: options->per_source_max_startups = INT_MAX;
376: if (options->per_source_masklen_ipv4 == -1)
377: options->per_source_masklen_ipv4 = 32;
378: if (options->per_source_masklen_ipv6 == -1)
379: options->per_source_masklen_ipv6 = 128;
1.133 dtucker 380: if (options->max_authtries == -1)
381: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 382: if (options->max_sessions == -1)
383: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 384: if (options->use_dns == -1)
1.260 deraadt 385: options->use_dns = 0;
1.77 beck 386: if (options->client_alive_interval == -1)
1.95 deraadt 387: options->client_alive_interval = 0;
1.77 beck 388: if (options->client_alive_count_max == -1)
389: options->client_alive_count_max = 3;
1.219 djm 390: if (options->num_authkeys_files == 0) {
1.376 markus 391: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 392: &options->authorized_keys_files,
393: &options->num_authkeys_files,
394: _PATH_SSH_USER_PERMITTED_KEYS);
1.376 markus 395: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 396: &options->authorized_keys_files,
397: &options->num_authkeys_files,
398: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 399: }
1.145 reyk 400: if (options->permit_tun == -1)
1.146 reyk 401: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 402: if (options->ip_qos_interactive == -1)
1.327 job 403: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 404: if (options->ip_qos_bulk == -1)
1.327 job 405: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 406: if (options->version_addendum == NULL)
407: options->version_addendum = xstrdup("");
1.251 millert 408: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
409: options->fwd_opts.streamlocal_bind_mask = 0177;
410: if (options->fwd_opts.streamlocal_bind_unlink == -1)
411: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 412: if (options->fingerprint_hash == -1)
413: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 414: if (options->disable_forwarding == -1)
415: options->disable_forwarding = 0;
1.309 djm 416: if (options->expose_userauth_info == -1)
417: options->expose_userauth_info = 0;
1.355 djm 418: if (options->sk_provider == NULL)
419: options->sk_provider = xstrdup("internal");
1.386 djm 420: if (options->required_rsa_size == -1)
421: options->required_rsa_size = SSH_RSA_MINIMUM_MODULUS_SIZE;
1.390 djm 422: if (options->unused_connection_timeout == -1)
423: options->unused_connection_timeout = 0;
1.406 djm 424: if (options->sshd_session_path == NULL)
425: options->sshd_session_path = xstrdup(_PATH_SSHD_SESSION);
1.277 djm 426:
1.282 djm 427: assemble_algorithms(options);
1.277 djm 428:
1.257 djm 429: #define CLEAR_ON_NONE(v) \
430: do { \
431: if (option_clear_or_none(v)) { \
432: free(v); \
433: v = NULL; \
434: } \
435: } while(0)
1.389 djm 436: #define CLEAR_ON_NONE_ARRAY(v, nv, none) \
437: do { \
438: if (options->nv == 1 && \
439: strcasecmp(options->v[0], none) == 0) { \
440: free(options->v[0]); \
441: free(options->v); \
442: options->v = NULL; \
443: options->nv = 0; \
444: } \
445: } while (0)
1.257 djm 446: CLEAR_ON_NONE(options->pid_file);
447: CLEAR_ON_NONE(options->xauth_location);
448: CLEAR_ON_NONE(options->banner);
449: CLEAR_ON_NONE(options->trusted_user_ca_keys);
450: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 451: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 452: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 453: CLEAR_ON_NONE(options->adm_forced_command);
454: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 455: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 456: CLEAR_ON_NONE(options->host_key_agent);
1.389 djm 457:
1.257 djm 458: for (i = 0; i < options->num_host_key_files; i++)
459: CLEAR_ON_NONE(options->host_key_files[i]);
460: for (i = 0; i < options->num_host_cert_files; i++)
461: CLEAR_ON_NONE(options->host_cert_files[i]);
1.389 djm 462:
463: CLEAR_ON_NONE_ARRAY(channel_timeouts, num_channel_timeouts, "none");
464: CLEAR_ON_NONE_ARRAY(auth_methods, num_auth_methods, "any");
1.257 djm 465: #undef CLEAR_ON_NONE
1.389 djm 466: #undef CLEAR_ON_NONE_ARRAY
1.1 deraadt 467: }
468:
469: /* Keyword tokens. */
1.25 markus 470: typedef enum {
471: sBadOption, /* == unknown option */
1.293 naddy 472: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 473: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 474: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.382 millert 475: sKerberosGetAFSToken, sPasswordAuthentication,
476: sKbdInteractiveAuthentication, sListenAddress, sAddressFamily,
1.72 stevesk 477: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 478: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 479: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 480: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 481: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 482: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 483: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 484: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 485: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 486: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 487: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 488: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 489: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 490: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 491: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 492: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 493: sHostCertificate, sInclude,
1.208 djm 494: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 495: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 496: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 497: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 498: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 499: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 500: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 501: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.390 djm 502: sRequiredRSASize, sChannelTimeout, sUnusedConnectionTimeout,
1.407 ! djm 503: sSshdSessionPath,
1.295 djm 504: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 505: } ServerOpCodes;
506:
1.360 djm 507: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
508: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
509: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
510: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 511: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 512:
1.1 deraadt 513: /* Textual representation of the tokens. */
1.25 markus 514: static struct {
515: const char *name;
516: ServerOpCodes opcode;
1.153 dtucker 517: u_int flags;
1.25 markus 518: } keywords[] = {
1.153 dtucker 519: { "port", sPort, SSHCFG_GLOBAL },
520: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
521: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 522: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 523: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 524: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 525: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 526: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 527: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 528: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 529: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 530: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 531: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 532: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 533: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 534: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 535: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 536: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 537: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 538: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 539: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 540: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 541: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 542: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 543: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 544: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 545: #ifdef KRB5
1.168 dtucker 546: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 547: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
548: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
549: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 550: #else
1.168 dtucker 551: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 552: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
553: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
554: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 555: #endif
1.153 dtucker 556: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
557: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 558: #ifdef GSSAPI
1.168 dtucker 559: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 560: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 561: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 562: #else
1.168 dtucker 563: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 564: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 565: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 566: #endif
1.168 dtucker 567: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
568: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.381 dtucker 569: { "challengeresponseauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
570: { "skeyauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
1.153 dtucker 571: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
572: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
573: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
574: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
575: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 576: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 577: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 578: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
579: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
580: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 581: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
582: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 583: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 584: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 585: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 586: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 587: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 588: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
589: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
590: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 591: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 592: { "allowusers", sAllowUsers, SSHCFG_ALL },
593: { "denyusers", sDenyUsers, SSHCFG_ALL },
594: { "allowgroups", sAllowGroups, SSHCFG_ALL },
595: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 596: { "ciphers", sCiphers, SSHCFG_GLOBAL },
597: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 598: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 599: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
1.401 djm 600: { "subsystem", sSubsystem, SSHCFG_ALL },
1.153 dtucker 601: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 602: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
603: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 604: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 605: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 606: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 607: { "usedns", sUseDNS, SSHCFG_GLOBAL },
608: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
609: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 610: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
611: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 612: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 613: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 614: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 615: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 616: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 617: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 618: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 619: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 620: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 621: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 622: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 623: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 624: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 625: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 626: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
627: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 628: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 629: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 630: { "include", sInclude, SSHCFG_ALL },
1.213 djm 631: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 632: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
633: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 634: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
635: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 636: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 637: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 638: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
639: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
640: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 641: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 642: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 643: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 644: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 645: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 646: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.386 djm 647: { "requiredrsasize", sRequiredRSASize, SSHCFG_ALL },
1.389 djm 648: { "channeltimeout", sChannelTimeout, SSHCFG_ALL },
1.390 djm 649: { "unusedconnectiontimeout", sUnusedConnectionTimeout, SSHCFG_ALL },
1.407 ! djm 650: { "sshdsessionpath", sSshdSessionPath, SSHCFG_GLOBAL },
1.153 dtucker 651: { NULL, sBadOption, 0 }
1.1 deraadt 652: };
653:
1.182 dtucker 654: static struct {
655: int val;
656: char *text;
657: } tunmode_desc[] = {
658: { SSH_TUNMODE_NO, "no" },
659: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
660: { SSH_TUNMODE_ETHERNET, "ethernet" },
661: { SSH_TUNMODE_YES, "yes" },
662: { -1, NULL }
663: };
664:
1.329 djm 665: /* Returns an opcode name from its number */
666:
667: static const char *
668: lookup_opcode_name(ServerOpCodes code)
669: {
670: u_int i;
671:
672: for (i = 0; keywords[i].name != NULL; i++)
673: if (keywords[i].opcode == code)
674: return(keywords[i].name);
675: return "UNKNOWN";
676: }
677:
678:
1.27 markus 679: /*
1.73 stevesk 680: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 681: */
1.1 deraadt 682:
1.34 markus 683: static ServerOpCodes
1.25 markus 684: parse_token(const char *cp, const char *filename,
1.153 dtucker 685: int linenum, u_int *flags)
1.1 deraadt 686: {
1.55 markus 687: u_int i;
1.1 deraadt 688:
1.25 markus 689: for (i = 0; keywords[i].name; i++)
1.153 dtucker 690: if (strcasecmp(cp, keywords[i].name) == 0) {
691: *flags = keywords[i].flags;
1.25 markus 692: return keywords[i].opcode;
1.153 dtucker 693: }
1.25 markus 694:
1.78 stevesk 695: error("%s: line %d: Bad configuration option: %s",
696: filename, linenum, cp);
1.25 markus 697: return sBadOption;
1.1 deraadt 698: }
699:
1.202 djm 700: char *
701: derelativise_path(const char *path)
702: {
1.259 deraadt 703: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 704:
1.257 djm 705: if (strcasecmp(path, "none") == 0)
706: return xstrdup("none");
1.202 djm 707: expanded = tilde_expand_filename(path, getuid());
1.343 djm 708: if (path_absolute(expanded))
1.202 djm 709: return expanded;
1.207 djm 710: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 711: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 712: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 713: free(expanded);
1.202 djm 714: return ret;
715: }
716:
1.84 itojun 717: static void
1.315 djm 718: add_listen_addr(ServerOptions *options, const char *addr,
719: const char *rdomain, int port)
1.74 stevesk 720: {
1.142 djm 721: u_int i;
1.74 stevesk 722:
1.315 djm 723: if (port > 0)
724: add_one_listen_addr(options, addr, rdomain, port);
725: else {
726: for (i = 0; i < options->num_ports; i++) {
727: add_one_listen_addr(options, addr, rdomain,
728: options->ports[i]);
729: }
730: }
1.74 stevesk 731: }
732:
1.84 itojun 733: static void
1.315 djm 734: add_one_listen_addr(ServerOptions *options, const char *addr,
735: const char *rdomain, int port)
1.29 markus 736: {
737: struct addrinfo hints, *ai, *aitop;
738: char strport[NI_MAXSERV];
739: int gaierr;
1.315 djm 740: u_int i;
741:
742: /* Find listen_addrs entry for this rdomain */
743: for (i = 0; i < options->num_listen_addrs; i++) {
744: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
745: break;
746: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
747: continue;
748: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
749: break;
750: }
751: if (i >= options->num_listen_addrs) {
752: /* No entry for this rdomain; allocate one */
753: if (i >= INT_MAX)
1.371 djm 754: fatal_f("too many listen addresses");
1.315 djm 755: options->listen_addrs = xrecallocarray(options->listen_addrs,
756: options->num_listen_addrs, options->num_listen_addrs + 1,
757: sizeof(*options->listen_addrs));
758: i = options->num_listen_addrs++;
759: if (rdomain != NULL)
760: options->listen_addrs[i].rdomain = xstrdup(rdomain);
761: }
762: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 763:
1.74 stevesk 764: memset(&hints, 0, sizeof(hints));
1.138 djm 765: hints.ai_family = options->address_family;
1.74 stevesk 766: hints.ai_socktype = SOCK_STREAM;
767: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 768: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 769: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
770: fatal("bad addr or host: %s (%s)",
771: addr ? addr : "<NULL>",
1.173 dtucker 772: ssh_gai_strerror(gaierr));
1.74 stevesk 773: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
774: ;
1.315 djm 775: ai->ai_next = options->listen_addrs[i].addrs;
776: options->listen_addrs[i].addrs = aitop;
777: }
778:
779: /* Returns nonzero if the routing domain name is valid */
780: static int
781: valid_rdomain(const char *name)
782: {
783: const char *errstr;
784: long long num;
785: struct rt_tableinfo info;
786: int mib[6];
787: size_t miblen = sizeof(mib);
788:
789: if (name == NULL)
790: return 1;
791:
792: num = strtonum(name, 0, 255, &errstr);
793: if (errstr != NULL)
794: return 0;
795:
796: /* Check whether the table actually exists */
797: memset(mib, 0, sizeof(mib));
798: mib[0] = CTL_NET;
799: mib[1] = PF_ROUTE;
800: mib[4] = NET_RT_TABLE;
801: mib[5] = (int)num;
802: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
803: return 0;
804:
805: return 1;
1.29 markus 806: }
807:
1.266 dtucker 808: /*
809: * Queue a ListenAddress to be processed once we have all of the Ports
810: * and AddressFamily options.
811: */
812: static void
1.315 djm 813: queue_listen_addr(ServerOptions *options, const char *addr,
814: const char *rdomain, int port)
1.266 dtucker 815: {
1.315 djm 816: struct queued_listenaddr *qla;
817:
818: options->queued_listen_addrs = xrecallocarray(
819: options->queued_listen_addrs,
820: options->num_queued_listens, options->num_queued_listens + 1,
821: sizeof(*options->queued_listen_addrs));
822: qla = &options->queued_listen_addrs[options->num_queued_listens++];
823: qla->addr = xstrdup(addr);
824: qla->port = port;
825: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 826: }
827:
828: /*
829: * Process queued (text) ListenAddress entries.
830: */
831: static void
832: process_queued_listen_addrs(ServerOptions *options)
833: {
834: u_int i;
1.315 djm 835: struct queued_listenaddr *qla;
1.266 dtucker 836:
837: if (options->num_ports == 0)
838: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
839: if (options->address_family == -1)
840: options->address_family = AF_UNSPEC;
841:
842: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 843: qla = &options->queued_listen_addrs[i];
844: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
845: free(qla->addr);
846: free(qla->rdomain);
1.266 dtucker 847: }
848: free(options->queued_listen_addrs);
849: options->queued_listen_addrs = NULL;
850: options->num_queued_listens = 0;
851: }
852:
1.310 djm 853: /*
1.153 dtucker 854: * The strategy for the Match blocks is that the config file is parsed twice.
855: *
856: * The first time is at startup. activep is initialized to 1 and the
857: * directives in the global context are processed and acted on. Hitting a
858: * Match directive unsets activep and the directives inside the block are
859: * checked for syntax only.
860: *
861: * The second time is after a connection has been established but before
862: * authentication. activep is initialized to 2 and global config directives
863: * are ignored since they have already been processed. If the criteria in a
864: * Match block is met, activep is set and the subsequent directives
865: * processed and actioned until EOF or another Match block unsets it. Any
866: * options set are copied into the main server config.
867: *
868: * Potential additions/improvements:
1.295 djm 869: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 870: *
871: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
872: * Match Address 192.168.0.*
873: * Tag trusted
874: * Match Group wheel
875: * Tag trusted
876: * Match Tag trusted
877: * AllowTcpForwarding yes
878: * GatewayPorts clientspecified
879: * [...]
880: *
881: * - Add a PermittedChannelRequests directive
882: * Match Group shell
883: * PermittedChannelRequests session,forwarded-tcpip
884: */
885:
886: static int
1.165 dtucker 887: match_cfg_line_group(const char *grps, int line, const char *user)
888: {
889: int result = 0;
890: struct passwd *pw;
891:
892: if (user == NULL)
893: goto out;
894:
895: if ((pw = getpwnam(user)) == NULL) {
896: debug("Can't match group at line %d because user %.100s does "
897: "not exist", line, user);
898: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
899: debug("Can't Match group because user %.100s not in any group "
900: "at line %d", user, line);
1.186 djm 901: } else if (ga_match_pattern_list(grps) != 1) {
902: debug("user %.100s does not match group list %.100s at line %d",
903: user, grps, line);
1.165 dtucker 904: } else {
1.186 djm 905: debug("user %.100s matched group list %.100s at line %d", user,
906: grps, line);
1.165 dtucker 907: result = 1;
908: }
909: out:
910: ga_free();
911: return result;
912: }
913:
1.319 dtucker 914: static void
915: match_test_missing_fatal(const char *criteria, const char *attrib)
916: {
917: fatal("'Match %s' in configuration but '%s' not in connection "
918: "test specification.", criteria, attrib);
919: }
920:
1.226 dtucker 921: /*
1.230 dtucker 922: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 923: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 924: * not match.
1.226 dtucker 925: */
1.165 dtucker 926: static int
1.226 dtucker 927: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 928: {
1.243 dtucker 929: int result = 1, attributes = 0, port;
1.153 dtucker 930: char *arg, *attrib, *cp = *condition;
931:
1.226 dtucker 932: if (ci == NULL)
1.153 dtucker 933: debug3("checking syntax for 'Match %s'", cp);
934: else
1.226 dtucker 935: debug3("checking match for '%s' user %s host %s addr %s "
936: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
937: ci->host ? ci->host : "(null)",
938: ci->address ? ci->address : "(null)",
939: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 940:
941: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 942: /* Terminate on comment */
943: if (*attrib == '#') {
944: cp = NULL; /* mark all arguments consumed */
945: break;
946: }
947: arg = NULL;
1.243 dtucker 948: attributes++;
1.380 djm 949: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 950: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 951: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
952: *arg != '\0' && *arg != '#')) {
1.243 dtucker 953: error("'all' cannot be combined with other "
954: "Match attributes");
955: return -1;
956: }
1.380 djm 957: if (arg != NULL && *arg == '#')
958: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 959: *condition = cp;
960: return 1;
961: }
1.380 djm 962: /* All other criteria require an argument */
963: if ((arg = strdelim(&cp)) == NULL ||
964: *arg == '\0' || *arg == '#') {
1.153 dtucker 965: error("Missing Match criteria for %s", attrib);
966: return -1;
967: }
968: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 969: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 970: result = 0;
971: continue;
972: }
1.319 dtucker 973: if (ci->user == NULL)
974: match_test_missing_fatal("User", "user");
1.349 dtucker 975: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 976: result = 0;
977: else
978: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 979: "line %d", ci->user, arg, line);
1.165 dtucker 980: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 981: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 982: result = 0;
983: continue;
984: }
1.319 dtucker 985: if (ci->user == NULL)
986: match_test_missing_fatal("Group", "user");
1.226 dtucker 987: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 988: case -1:
989: return -1;
990: case 0:
991: result = 0;
992: }
1.153 dtucker 993: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 994: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 995: result = 0;
996: continue;
997: }
1.319 dtucker 998: if (ci->host == NULL)
999: match_test_missing_fatal("Host", "host");
1.269 djm 1000: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1001: result = 0;
1002: else
1003: debug("connection from %.100s matched 'Host "
1.226 dtucker 1004: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1005: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1006: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1007: if (addr_match_list(NULL, arg) != 0)
1008: fatal("Invalid Match address argument "
1009: "'%s' at line %d", arg, line);
1.226 dtucker 1010: result = 0;
1011: continue;
1012: }
1.319 dtucker 1013: if (ci->address == NULL)
1014: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1015: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1016: case 1:
1017: debug("connection from %.100s matched 'Address "
1.226 dtucker 1018: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1019: break;
1020: case 0:
1.183 djm 1021: case -1:
1.153 dtucker 1022: result = 0;
1.181 djm 1023: break;
1.183 djm 1024: case -2:
1.181 djm 1025: return -1;
1.153 dtucker 1026: }
1.226 dtucker 1027: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1028: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1029: if (addr_match_list(NULL, arg) != 0)
1030: fatal("Invalid Match localaddress "
1031: "argument '%s' at line %d", arg,
1032: line);
1.226 dtucker 1033: result = 0;
1034: continue;
1035: }
1.319 dtucker 1036: if (ci->laddress == NULL)
1037: match_test_missing_fatal("LocalAddress",
1038: "laddr");
1.226 dtucker 1039: switch (addr_match_list(ci->laddress, arg)) {
1040: case 1:
1041: debug("connection from %.100s matched "
1042: "'LocalAddress %.100s' at line %d",
1043: ci->laddress, arg, line);
1044: break;
1045: case 0:
1046: case -1:
1047: result = 0;
1048: break;
1049: case -2:
1050: return -1;
1051: }
1052: } else if (strcasecmp(attrib, "localport") == 0) {
1053: if ((port = a2port(arg)) == -1) {
1054: error("Invalid LocalPort '%s' on Match line",
1055: arg);
1056: return -1;
1057: }
1.351 dtucker 1058: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1059: result = 0;
1060: continue;
1061: }
1.319 dtucker 1062: if (ci->lport == 0)
1063: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1064: /* TODO support port lists */
1065: if (port == ci->lport)
1066: debug("connection from %.100s matched "
1067: "'LocalPort %d' at line %d",
1068: ci->laddress, port, line);
1069: else
1070: result = 0;
1.317 djm 1071: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1072: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1073: result = 0;
1074: continue;
1075: }
1.351 dtucker 1076: if (ci->rdomain == NULL)
1077: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1078: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1079: result = 0;
1080: else
1081: debug("user %.100s matched 'RDomain %.100s' at "
1082: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1083: } else {
1084: error("Unsupported Match attribute %s", attrib);
1085: return -1;
1086: }
1.243 dtucker 1087: }
1088: if (attributes == 0) {
1089: error("One or more attributes required for Match");
1090: return -1;
1.153 dtucker 1091: }
1.226 dtucker 1092: if (ci != NULL)
1.153 dtucker 1093: debug3("match %sfound", result ? "" : "not ");
1094: *condition = cp;
1095: return result;
1096: }
1097:
1.158 dtucker 1098: #define WHITESPACE " \t\r\n"
1099:
1.220 djm 1100: /* Multistate option parsing */
1101: struct multistate {
1102: char *key;
1103: int value;
1104: };
1.320 djm 1105: static const struct multistate multistate_flag[] = {
1106: { "yes", 1 },
1107: { "no", 0 },
1108: { NULL, -1 }
1109: };
1.363 djm 1110: static const struct multistate multistate_ignore_rhosts[] = {
1111: { "yes", IGNORE_RHOSTS_YES },
1112: { "no", IGNORE_RHOSTS_NO },
1113: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1114: { NULL, -1 }
1115: };
1.220 djm 1116: static const struct multistate multistate_addressfamily[] = {
1117: { "inet", AF_INET },
1118: { "inet6", AF_INET6 },
1119: { "any", AF_UNSPEC },
1120: { NULL, -1 }
1121: };
1122: static const struct multistate multistate_permitrootlogin[] = {
1123: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1124: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1125: { "forced-commands-only", PERMIT_FORCED_ONLY },
1126: { "yes", PERMIT_YES },
1127: { "no", PERMIT_NO },
1128: { NULL, -1 }
1129: };
1130: static const struct multistate multistate_compression[] = {
1.359 dtucker 1131: #ifdef WITH_ZLIB
1.337 sf 1132: { "yes", COMP_DELAYED },
1133: { "delayed", COMP_DELAYED },
1.359 dtucker 1134: #endif
1.220 djm 1135: { "no", COMP_NONE },
1136: { NULL, -1 }
1137: };
1138: static const struct multistate multistate_gatewayports[] = {
1139: { "clientspecified", 2 },
1140: { "yes", 1 },
1141: { "no", 0 },
1.222 djm 1142: { NULL, -1 }
1143: };
1.233 djm 1144: static const struct multistate multistate_tcpfwd[] = {
1145: { "yes", FORWARD_ALLOW },
1146: { "all", FORWARD_ALLOW },
1147: { "no", FORWARD_DENY },
1148: { "remote", FORWARD_REMOTE },
1149: { "local", FORWARD_LOCAL },
1150: { NULL, -1 }
1151: };
1.220 djm 1152:
1.360 djm 1153: static int
1154: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1155: const char *filename, int linenum, int *activep,
1.365 djm 1156: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1157: struct include_list *includes)
1.1 deraadt 1158: {
1.383 dtucker 1159: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.405 djm 1160: int cmdline = 0, *intptr, value, value2, n, port, oactive, r;
1161: int ca_only = 0, found = 0;
1.174 dtucker 1162: SyslogFacility *log_facility_ptr;
1163: LogLevel *log_level_ptr;
1.25 markus 1164: ServerOpCodes opcode;
1.405 djm 1165: u_int i, *uintptr, flags = 0;
1.151 djm 1166: size_t len;
1.237 dtucker 1167: long long val64;
1.220 djm 1168: const struct multistate *multistate_ptr;
1.322 dtucker 1169: const char *errstr;
1.360 djm 1170: struct include_item *item;
1171: glob_t gbuf;
1.380 djm 1172: char **oav = NULL, **av;
1173: int oac = 0, ac;
1174: int ret = -1;
1.405 djm 1175: char **strs = NULL; /* string array arguments; freed implicitly */
1176: u_int nstrs = 0;
1.303 djm 1177:
1178: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1179: if ((len = strlen(line)) == 0)
1180: return 0;
1181: for (len--; len > 0; len--) {
1182: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1183: break;
1184: line[len] = '\0';
1185: }
1.25 markus 1186:
1.380 djm 1187: str = line;
1188: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1189: return 0;
1.94 markus 1190: /* Ignore leading whitespace */
1.380 djm 1191: if (*keyword == '\0')
1192: keyword = strdelim(&str);
1193: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1194: return 0;
1.380 djm 1195: if (str == NULL || *str == '\0') {
1196: error("%s line %d: no argument after keyword \"%s\"",
1197: filename, linenum, keyword);
1198: return -1;
1199: }
1.94 markus 1200: intptr = NULL;
1201: charptr = NULL;
1.380 djm 1202: opcode = parse_token(keyword, filename, linenum, &flags);
1203:
1204: if (argv_split(str, &oac, &oav, 1) != 0) {
1205: error("%s line %d: invalid quotes", filename, linenum);
1206: return -1;
1207: }
1208: ac = oac;
1209: av = oav;
1.153 dtucker 1210:
1211: if (activep == NULL) { /* We are processing a command line directive */
1212: cmdline = 1;
1213: activep = &cmdline;
1214: }
1.360 djm 1215: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1216: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1217: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1218: if (connectinfo == NULL) {
1.153 dtucker 1219: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1220: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1221: } else { /* this is a directive we have already processed */
1.380 djm 1222: ret = 0;
1223: goto out;
1.153 dtucker 1224: }
1225: }
1226:
1.94 markus 1227: switch (opcode) {
1228: case sBadOption:
1.380 djm 1229: goto out;
1.94 markus 1230: case sPort:
1231: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1232: if (options->ports_from_cmdline) {
1233: argv_consume(&ac);
1234: break;
1235: }
1.94 markus 1236: if (options->num_ports >= MAX_PORTS)
1237: fatal("%s line %d: too many ports.",
1238: filename, linenum);
1.380 djm 1239: arg = argv_next(&ac, &av);
1.94 markus 1240: if (!arg || *arg == '\0')
1241: fatal("%s line %d: missing port number.",
1242: filename, linenum);
1243: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1244: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1245: fatal("%s line %d: Badly formatted port number.",
1246: filename, linenum);
1247: break;
1.29 markus 1248:
1.94 markus 1249: case sLoginGraceTime:
1250: intptr = &options->login_grace_time;
1.180 djm 1251: parse_time:
1.380 djm 1252: arg = argv_next(&ac, &av);
1.94 markus 1253: if (!arg || *arg == '\0')
1254: fatal("%s line %d: missing time value.",
1255: filename, linenum);
1256: if ((value = convtime(arg)) == -1)
1257: fatal("%s line %d: invalid time value.",
1258: filename, linenum);
1.268 djm 1259: if (*activep && *intptr == -1)
1.94 markus 1260: *intptr = value;
1261: break;
1262:
1263: case sListenAddress:
1.380 djm 1264: arg = argv_next(&ac, &av);
1.139 djm 1265: if (arg == NULL || *arg == '\0')
1266: fatal("%s line %d: missing address",
1.94 markus 1267: filename, linenum);
1.144 dtucker 1268: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1269: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1270: && strchr(p+1, ':') != NULL) {
1.315 djm 1271: port = 0;
1272: p = arg;
1273: } else {
1.347 dtucker 1274: arg2 = NULL;
1.383 dtucker 1275: p = hpdelim(&arg);
1276: if (p == NULL)
1.315 djm 1277: fatal("%s line %d: bad address:port usage",
1278: filename, linenum);
1279: p = cleanhostname(p);
1280: if (arg == NULL)
1281: port = 0;
1282: else if ((port = a2port(arg)) <= 0)
1283: fatal("%s line %d: bad port number",
1284: filename, linenum);
1285: }
1286: /* Optional routing table */
1287: arg2 = NULL;
1.380 djm 1288: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1289: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1290: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1291: fatal("%s line %d: bad ListenAddress syntax",
1292: filename, linenum);
1293: if (!valid_rdomain(arg2))
1294: fatal("%s line %d: bad routing domain",
1295: filename, linenum);
1.144 dtucker 1296: }
1.315 djm 1297: queue_listen_addr(options, p, arg2, port);
1.25 markus 1298:
1.138 djm 1299: break;
1300:
1301: case sAddressFamily:
1.220 djm 1302: intptr = &options->address_family;
1303: multistate_ptr = multistate_addressfamily;
1304: parse_multistate:
1.380 djm 1305: arg = argv_next(&ac, &av);
1.141 markus 1306: if (!arg || *arg == '\0')
1.220 djm 1307: fatal("%s line %d: missing argument.",
1.141 markus 1308: filename, linenum);
1.220 djm 1309: value = -1;
1310: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1311: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1312: value = multistate_ptr[i].value;
1313: break;
1314: }
1315: }
1316: if (value == -1)
1317: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1318: filename, linenum, arg);
1.220 djm 1319: if (*activep && *intptr == -1)
1.138 djm 1320: *intptr = value;
1.94 markus 1321: break;
1322:
1323: case sHostKeyFile:
1.380 djm 1324: arg = argv_next(&ac, &av);
1.94 markus 1325: if (!arg || *arg == '\0')
1326: fatal("%s line %d: missing file name.",
1327: filename, linenum);
1.344 djm 1328: if (*activep) {
1329: servconf_add_hostkey(filename, linenum,
1330: options, arg, 1);
1331: }
1.94 markus 1332: break;
1.76 stevesk 1333:
1.240 markus 1334: case sHostKeyAgent:
1335: charptr = &options->host_key_agent;
1.380 djm 1336: arg = argv_next(&ac, &av);
1.240 markus 1337: if (!arg || *arg == '\0')
1338: fatal("%s line %d: missing socket name.",
1339: filename, linenum);
1340: if (*activep && *charptr == NULL)
1341: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1342: xstrdup(arg) : derelativise_path(arg);
1343: break;
1344:
1.203 djm 1345: case sHostCertificate:
1.380 djm 1346: arg = argv_next(&ac, &av);
1.314 djm 1347: if (!arg || *arg == '\0')
1348: fatal("%s line %d: missing file name.",
1349: filename, linenum);
1350: if (*activep)
1351: servconf_add_hostcert(filename, linenum, options, arg);
1352: break;
1.203 djm 1353:
1.94 markus 1354: case sPidFile:
1355: charptr = &options->pid_file;
1.314 djm 1356: parse_filename:
1.380 djm 1357: arg = argv_next(&ac, &av);
1.314 djm 1358: if (!arg || *arg == '\0')
1359: fatal("%s line %d: missing file name.",
1360: filename, linenum);
1361: if (*activep && *charptr == NULL) {
1362: *charptr = derelativise_path(arg);
1363: /* increase optional counter */
1364: if (intptr != NULL)
1365: *intptr = *intptr + 1;
1366: }
1367: break;
1.25 markus 1368:
1.378 dtucker 1369: case sModuliFile:
1370: charptr = &options->moduli_file;
1371: goto parse_filename;
1372:
1.94 markus 1373: case sPermitRootLogin:
1374: intptr = &options->permit_root_login;
1.220 djm 1375: multistate_ptr = multistate_permitrootlogin;
1376: goto parse_multistate;
1.36 markus 1377:
1.94 markus 1378: case sIgnoreRhosts:
1379: intptr = &options->ignore_rhosts;
1.363 djm 1380: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1381: goto parse_multistate;
1.94 markus 1382:
1383: case sIgnoreUserKnownHosts:
1384: intptr = &options->ignore_user_known_hosts;
1.363 djm 1385: parse_flag:
1386: multistate_ptr = multistate_flag;
1387: goto parse_multistate;
1.94 markus 1388:
1389: case sHostbasedAuthentication:
1390: intptr = &options->hostbased_authentication;
1391: goto parse_flag;
1392:
1393: case sHostbasedUsesNameFromPacketOnly:
1394: intptr = &options->hostbased_uses_name_from_packet_only;
1395: goto parse_flag;
1396:
1.375 dtucker 1397: case sHostbasedAcceptedAlgorithms:
1398: charptr = &options->hostbased_accepted_algos;
1.395 djm 1399: ca_only = 0;
1.374 dtucker 1400: parse_pubkey_algos:
1.380 djm 1401: arg = argv_next(&ac, &av);
1.258 djm 1402: if (!arg || *arg == '\0')
1403: fatal("%s line %d: Missing argument.",
1404: filename, linenum);
1.304 djm 1405: if (*arg != '-' &&
1.352 naddy 1406: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1.395 djm 1407: arg + 1 : arg, 1, ca_only))
1.258 djm 1408: fatal("%s line %d: Bad key types '%s'.",
1409: filename, linenum, arg ? arg : "<NONE>");
1410: if (*activep && *charptr == NULL)
1411: *charptr = xstrdup(arg);
1412: break;
1413:
1.276 markus 1414: case sHostKeyAlgorithms:
1415: charptr = &options->hostkeyalgorithms;
1.395 djm 1416: ca_only = 0;
1.374 dtucker 1417: goto parse_pubkey_algos;
1.276 markus 1418:
1.341 djm 1419: case sCASignatureAlgorithms:
1420: charptr = &options->ca_sign_algorithms;
1.395 djm 1421: ca_only = 1;
1.374 dtucker 1422: goto parse_pubkey_algos;
1.341 djm 1423:
1.94 markus 1424: case sPubkeyAuthentication:
1425: intptr = &options->pubkey_authentication;
1.395 djm 1426: ca_only = 0;
1.94 markus 1427: goto parse_flag;
1.119 jakob 1428:
1.374 dtucker 1429: case sPubkeyAcceptedAlgorithms:
1430: charptr = &options->pubkey_accepted_algos;
1.395 djm 1431: ca_only = 0;
1.374 dtucker 1432: goto parse_pubkey_algos;
1.258 djm 1433:
1.354 djm 1434: case sPubkeyAuthOptions:
1435: intptr = &options->pubkey_auth_options;
1436: value = 0;
1.380 djm 1437: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1438: if (strcasecmp(arg, "none") == 0)
1439: continue;
1440: if (strcasecmp(arg, "touch-required") == 0)
1441: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1442: else if (strcasecmp(arg, "verify-required") == 0)
1443: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1444: else {
1.380 djm 1445: error("%s line %d: unsupported %s option %s",
1446: filename, linenum, keyword, arg);
1447: goto out;
1.354 djm 1448: }
1449: }
1450: if (*activep && *intptr == -1)
1451: *intptr = value;
1452: break;
1453:
1.94 markus 1454: case sKerberosAuthentication:
1455: intptr = &options->kerberos_authentication;
1456: goto parse_flag;
1457:
1458: case sKerberosOrLocalPasswd:
1459: intptr = &options->kerberos_or_local_passwd;
1460: goto parse_flag;
1461:
1462: case sKerberosTicketCleanup:
1463: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1464: goto parse_flag;
1465:
1466: case sKerberosGetAFSToken:
1467: intptr = &options->kerberos_get_afs_token;
1.125 markus 1468: goto parse_flag;
1469:
1470: case sGssAuthentication:
1471: intptr = &options->gss_authentication;
1472: goto parse_flag;
1473:
1474: case sGssCleanupCreds:
1475: intptr = &options->gss_cleanup_creds;
1.271 djm 1476: goto parse_flag;
1477:
1478: case sGssStrictAcceptor:
1479: intptr = &options->gss_strict_acceptor;
1.94 markus 1480: goto parse_flag;
1481:
1482: case sPasswordAuthentication:
1483: intptr = &options->password_authentication;
1484: goto parse_flag;
1485:
1486: case sKbdInteractiveAuthentication:
1487: intptr = &options->kbd_interactive_authentication;
1488: goto parse_flag;
1489:
1490: case sPrintMotd:
1491: intptr = &options->print_motd;
1492: goto parse_flag;
1493:
1494: case sPrintLastLog:
1495: intptr = &options->print_lastlog;
1496: goto parse_flag;
1497:
1498: case sX11Forwarding:
1499: intptr = &options->x11_forwarding;
1500: goto parse_flag;
1501:
1502: case sX11DisplayOffset:
1503: intptr = &options->x11_display_offset;
1.293 naddy 1504: parse_int:
1.380 djm 1505: arg = argv_next(&ac, &av);
1.322 dtucker 1506: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1507: fatal("%s line %d: %s integer value %s.",
1508: filename, linenum, keyword, errstr);
1.293 naddy 1509: if (*activep && *intptr == -1)
1510: *intptr = value;
1511: break;
1.99 stevesk 1512:
1513: case sX11UseLocalhost:
1514: intptr = &options->x11_use_localhost;
1515: goto parse_flag;
1.94 markus 1516:
1517: case sXAuthLocation:
1518: charptr = &options->xauth_location;
1519: goto parse_filename;
1520:
1.244 djm 1521: case sPermitTTY:
1522: intptr = &options->permit_tty;
1523: goto parse_flag;
1524:
1.250 djm 1525: case sPermitUserRC:
1526: intptr = &options->permit_user_rc;
1527: goto parse_flag;
1528:
1.94 markus 1529: case sStrictModes:
1530: intptr = &options->strict_modes;
1531: goto parse_flag;
1532:
1.129 markus 1533: case sTCPKeepAlive:
1534: intptr = &options->tcp_keep_alive;
1.94 markus 1535: goto parse_flag;
1536:
1537: case sEmptyPasswd:
1538: intptr = &options->permit_empty_passwd;
1.113 markus 1539: goto parse_flag;
1540:
1541: case sPermitUserEnvironment:
1542: intptr = &options->permit_user_env;
1.367 djm 1543: charptr = &options->permit_user_env_allowlist;
1.380 djm 1544: arg = argv_next(&ac, &av);
1.334 djm 1545: if (!arg || *arg == '\0')
1.380 djm 1546: fatal("%s line %d: %s missing argument.",
1547: filename, linenum, keyword);
1.334 djm 1548: value = 0;
1549: p = NULL;
1550: if (strcmp(arg, "yes") == 0)
1551: value = 1;
1552: else if (strcmp(arg, "no") == 0)
1553: value = 0;
1554: else {
1555: /* Pattern-list specified */
1556: value = 1;
1557: p = xstrdup(arg);
1558: }
1559: if (*activep && *intptr == -1) {
1560: *intptr = value;
1561: *charptr = p;
1562: p = NULL;
1563: }
1564: free(p);
1565: break;
1.94 markus 1566:
1.111 markus 1567: case sCompression:
1568: intptr = &options->compression;
1.220 djm 1569: multistate_ptr = multistate_compression;
1570: goto parse_multistate;
1.94 markus 1571:
1.235 dtucker 1572: case sRekeyLimit:
1.380 djm 1573: arg = argv_next(&ac, &av);
1.235 dtucker 1574: if (!arg || *arg == '\0')
1.380 djm 1575: fatal("%s line %d: %s missing argument.",
1576: filename, linenum, keyword);
1.235 dtucker 1577: if (strcmp(arg, "default") == 0) {
1578: val64 = 0;
1579: } else {
1.236 dtucker 1580: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1581: fatal("%.200s line %d: Bad %s number '%s': %s",
1582: filename, linenum, keyword,
1583: arg, strerror(errno));
1.235 dtucker 1584: if (val64 != 0 && val64 < 16)
1.380 djm 1585: fatal("%.200s line %d: %s too small",
1586: filename, linenum, keyword);
1.235 dtucker 1587: }
1588: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1589: options->rekey_limit = val64;
1.380 djm 1590: if (ac != 0) { /* optional rekey interval present */
1591: if (strcmp(av[0], "none") == 0) {
1592: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1593: break;
1594: }
1595: intptr = &options->rekey_interval;
1596: goto parse_time;
1597: }
1598: break;
1599:
1.94 markus 1600: case sGatewayPorts:
1.251 millert 1601: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1602: multistate_ptr = multistate_gatewayports;
1603: goto parse_multistate;
1.25 markus 1604:
1.122 markus 1605: case sUseDNS:
1606: intptr = &options->use_dns;
1.94 markus 1607: goto parse_flag;
1.53 markus 1608:
1.94 markus 1609: case sLogFacility:
1.174 dtucker 1610: log_facility_ptr = &options->log_facility;
1.380 djm 1611: arg = argv_next(&ac, &av);
1.94 markus 1612: value = log_facility_number(arg);
1.101 markus 1613: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1614: fatal("%.200s line %d: unsupported log facility '%s'",
1615: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1616: if (*log_facility_ptr == -1)
1617: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1618: break;
1.25 markus 1619:
1.94 markus 1620: case sLogLevel:
1.174 dtucker 1621: log_level_ptr = &options->log_level;
1.380 djm 1622: arg = argv_next(&ac, &av);
1.94 markus 1623: value = log_level_number(arg);
1.101 markus 1624: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1625: fatal("%.200s line %d: unsupported log level '%s'",
1626: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1627: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1628: *log_level_ptr = (LogLevel) value;
1.94 markus 1629: break;
1630:
1.370 djm 1631: case sLogVerbose:
1.380 djm 1632: found = options->num_log_verbose == 0;
1633: while ((arg = argv_next(&ac, &av)) != NULL) {
1634: if (*arg == '\0') {
1635: error("%s line %d: keyword %s empty argument",
1636: filename, linenum, keyword);
1637: goto out;
1638: }
1639: /* Allow "none" only in first position */
1640: if (strcasecmp(arg, "none") == 0) {
1.405 djm 1641: if (nstrs > 0 || ac > 0) {
1.380 djm 1642: error("%s line %d: keyword %s \"none\" "
1643: "argument must appear alone.",
1644: filename, linenum, keyword);
1645: goto out;
1646: }
1647: }
1648: opt_array_append(filename, linenum, keyword,
1.405 djm 1649: &strs, &nstrs, arg);
1650: }
1651: if (nstrs == 0) {
1652: fatal("%s line %d: no %s specified",
1653: filename, linenum, keyword);
1654: }
1655: if (found && *activep) {
1656: options->log_verbose = strs;
1657: options->num_log_verbose = nstrs;
1658: strs = NULL; /* transferred */
1659: nstrs = 0;
1.370 djm 1660: }
1661: break;
1662:
1.94 markus 1663: case sAllowTcpForwarding:
1664: intptr = &options->allow_tcp_forwarding;
1.233 djm 1665: multistate_ptr = multistate_tcpfwd;
1666: goto parse_multistate;
1.102 provos 1667:
1.251 millert 1668: case sAllowStreamLocalForwarding:
1669: intptr = &options->allow_streamlocal_forwarding;
1670: multistate_ptr = multistate_tcpfwd;
1671: goto parse_multistate;
1672:
1.178 pyr 1673: case sAllowAgentForwarding:
1674: intptr = &options->allow_agent_forwarding;
1675: goto parse_flag;
1676:
1.301 djm 1677: case sDisableForwarding:
1678: intptr = &options->disable_forwarding;
1679: goto parse_flag;
1680:
1.94 markus 1681: case sAllowUsers:
1.380 djm 1682: chararrayptr = &options->allow_users;
1683: uintptr = &options->num_allow_users;
1684: parse_allowdenyusers:
1.405 djm 1685: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 1686: while ((arg = argv_next(&ac, &av)) != NULL) {
1687: if (*arg == '\0' ||
1688: match_user(NULL, NULL, NULL, arg) == -1)
1689: fatal("%s line %d: invalid %s pattern: \"%s\"",
1690: filename, linenum, keyword, arg);
1.405 djm 1691: found = 1;
1.227 markus 1692: if (!*activep)
1693: continue;
1.380 djm 1694: opt_array_append(filename, linenum, keyword,
1695: chararrayptr, uintptr, arg);
1.94 markus 1696: }
1.405 djm 1697: if (!found) {
1698: fatal("%s line %d: no %s specified",
1699: filename, linenum, keyword);
1700: }
1.94 markus 1701: break;
1.25 markus 1702:
1.94 markus 1703: case sDenyUsers:
1.380 djm 1704: chararrayptr = &options->deny_users;
1705: uintptr = &options->num_deny_users;
1706: goto parse_allowdenyusers;
1.25 markus 1707:
1.94 markus 1708: case sAllowGroups:
1.380 djm 1709: chararrayptr = &options->allow_groups;
1710: uintptr = &options->num_allow_groups;
1.405 djm 1711: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 1712: parse_allowdenygroups:
1713: while ((arg = argv_next(&ac, &av)) != NULL) {
1714: if (*arg == '\0')
1715: fatal("%s line %d: empty %s pattern",
1716: filename, linenum, keyword);
1.405 djm 1717: found = 1;
1.227 markus 1718: if (!*activep)
1719: continue;
1.380 djm 1720: opt_array_append(filename, linenum, keyword,
1721: chararrayptr, uintptr, arg);
1.94 markus 1722: }
1.405 djm 1723: if (!found) {
1724: fatal("%s line %d: no %s specified",
1725: filename, linenum, keyword);
1726: }
1.94 markus 1727: break;
1.33 markus 1728:
1.94 markus 1729: case sDenyGroups:
1.380 djm 1730: chararrayptr = &options->deny_groups;
1731: uintptr = &options->num_deny_groups;
1732: goto parse_allowdenygroups;
1.66 markus 1733:
1.94 markus 1734: case sCiphers:
1.380 djm 1735: arg = argv_next(&ac, &av);
1.94 markus 1736: if (!arg || *arg == '\0')
1.380 djm 1737: fatal("%s line %d: %s missing argument.",
1738: filename, linenum, keyword);
1.352 naddy 1739: if (*arg != '-' &&
1740: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1741: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1742: filename, linenum, arg ? arg : "<NONE>");
1743: if (options->ciphers == NULL)
1744: options->ciphers = xstrdup(arg);
1745: break;
1.33 markus 1746:
1.94 markus 1747: case sMacs:
1.380 djm 1748: arg = argv_next(&ac, &av);
1.94 markus 1749: if (!arg || *arg == '\0')
1.380 djm 1750: fatal("%s line %d: %s missing argument.",
1751: filename, linenum, keyword);
1.352 naddy 1752: if (*arg != '-' &&
1753: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1754: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1755: filename, linenum, arg ? arg : "<NONE>");
1756: if (options->macs == NULL)
1757: options->macs = xstrdup(arg);
1.211 djm 1758: break;
1759:
1760: case sKexAlgorithms:
1.380 djm 1761: arg = argv_next(&ac, &av);
1.211 djm 1762: if (!arg || *arg == '\0')
1.380 djm 1763: fatal("%s line %d: %s missing argument.",
1764: filename, linenum, keyword);
1.304 djm 1765: if (*arg != '-' &&
1.352 naddy 1766: !kex_names_valid(*arg == '+' || *arg == '^' ?
1767: arg + 1 : arg))
1.211 djm 1768: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1769: filename, linenum, arg ? arg : "<NONE>");
1770: if (options->kex_algorithms == NULL)
1771: options->kex_algorithms = xstrdup(arg);
1.94 markus 1772: break;
1.43 jakob 1773:
1.94 markus 1774: case sSubsystem:
1.380 djm 1775: arg = argv_next(&ac, &av);
1.94 markus 1776: if (!arg || *arg == '\0')
1.380 djm 1777: fatal("%s line %d: %s missing argument.",
1778: filename, linenum, keyword);
1.153 dtucker 1779: if (!*activep) {
1.398 djm 1780: argv_consume(&ac);
1781: break;
1782: }
1783: found = 0;
1784: for (i = 0; i < options->num_subsystems; i++) {
1785: if (strcmp(arg, options->subsystem_name[i]) == 0) {
1786: found = 1;
1787: break;
1788: }
1789: }
1790: if (found) {
1791: debug("%s line %d: Subsystem '%s' already defined.",
1792: filename, linenum, arg);
1793: argv_consume(&ac);
1.153 dtucker 1794: break;
1795: }
1.400 djm 1796: options->subsystem_name = xrecallocarray(
1797: options->subsystem_name, options->num_subsystems,
1798: options->num_subsystems + 1,
1.402 djm 1799: sizeof(*options->subsystem_name));
1.400 djm 1800: options->subsystem_command = xrecallocarray(
1801: options->subsystem_command, options->num_subsystems,
1802: options->num_subsystems + 1,
1.402 djm 1803: sizeof(*options->subsystem_command));
1.400 djm 1804: options->subsystem_args = xrecallocarray(
1805: options->subsystem_args, options->num_subsystems,
1806: options->num_subsystems + 1,
1.402 djm 1807: sizeof(*options->subsystem_args));
1.94 markus 1808: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1809: arg = argv_next(&ac, &av);
1.399 djm 1810: if (!arg || *arg == '\0') {
1.94 markus 1811: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1812: filename, linenum);
1.399 djm 1813: }
1814: options->subsystem_command[options->num_subsystems] =
1815: xstrdup(arg);
1.151 djm 1816: /* Collect arguments (separate to executable) */
1.399 djm 1817: arg = argv_assemble(1, &arg); /* quote command correctly */
1818: arg2 = argv_assemble(ac, av); /* rest of command */
1819: xasprintf(&options->subsystem_args[options->num_subsystems],
1.404 djm 1820: "%s%s%s", arg, *arg2 == '\0' ? "" : " ", arg2);
1.399 djm 1821: free(arg2);
1822: argv_consume(&ac);
1.94 markus 1823: options->num_subsystems++;
1824: break;
1.46 markus 1825:
1.94 markus 1826: case sMaxStartups:
1.380 djm 1827: arg = argv_next(&ac, &av);
1.94 markus 1828: if (!arg || *arg == '\0')
1.380 djm 1829: fatal("%s line %d: %s missing argument.",
1830: filename, linenum, keyword);
1.94 markus 1831: if ((n = sscanf(arg, "%d:%d:%d",
1832: &options->max_startups_begin,
1833: &options->max_startups_rate,
1834: &options->max_startups)) == 3) {
1835: if (options->max_startups_begin >
1836: options->max_startups ||
1837: options->max_startups_rate > 100 ||
1838: options->max_startups_rate < 1)
1.380 djm 1839: fatal("%s line %d: Invalid %s spec.",
1840: filename, linenum, keyword);
1.94 markus 1841: } else if (n != 1)
1.380 djm 1842: fatal("%s line %d: Invalid %s spec.",
1843: filename, linenum, keyword);
1.94 markus 1844: else
1845: options->max_startups = options->max_startups_begin;
1.387 dtucker 1846: if (options->max_startups <= 0 ||
1847: options->max_startups_begin <= 0)
1848: fatal("%s line %d: Invalid %s spec.",
1849: filename, linenum, keyword);
1.94 markus 1850: break;
1.133 dtucker 1851:
1.372 dtucker 1852: case sPerSourceNetBlockSize:
1.380 djm 1853: arg = argv_next(&ac, &av);
1.372 dtucker 1854: if (!arg || *arg == '\0')
1.380 djm 1855: fatal("%s line %d: %s missing argument.",
1856: filename, linenum, keyword);
1.372 dtucker 1857: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1858: case 2:
1859: if (value2 < 0 || value2 > 128)
1860: n = -1;
1861: /* FALLTHROUGH */
1862: case 1:
1863: if (value < 0 || value > 32)
1864: n = -1;
1865: }
1866: if (n != 1 && n != 2)
1.380 djm 1867: fatal("%s line %d: Invalid %s spec.",
1868: filename, linenum, keyword);
1.372 dtucker 1869: if (*activep) {
1870: options->per_source_masklen_ipv4 = value;
1871: options->per_source_masklen_ipv6 = value2;
1872: }
1873: break;
1874:
1875: case sPerSourceMaxStartups:
1.380 djm 1876: arg = argv_next(&ac, &av);
1.372 dtucker 1877: if (!arg || *arg == '\0')
1.380 djm 1878: fatal("%s line %d: %s missing argument.",
1879: filename, linenum, keyword);
1.372 dtucker 1880: if (strcmp(arg, "none") == 0) { /* no limit */
1881: value = INT_MAX;
1882: } else {
1883: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1884: fatal("%s line %d: %s integer value %s.",
1885: filename, linenum, keyword, errstr);
1.372 dtucker 1886: }
1.397 djm 1887: if (*activep && options->per_source_max_startups == -1)
1.372 dtucker 1888: options->per_source_max_startups = value;
1889: break;
1890:
1.133 dtucker 1891: case sMaxAuthTries:
1892: intptr = &options->max_authtries;
1893: goto parse_int;
1.94 markus 1894:
1.180 djm 1895: case sMaxSessions:
1896: intptr = &options->max_sessions;
1897: goto parse_int;
1898:
1.94 markus 1899: case sBanner:
1900: charptr = &options->banner;
1901: goto parse_filename;
1.176 djm 1902:
1.94 markus 1903: /*
1904: * These options can contain %X options expanded at
1905: * connect time, so that you can specify paths like:
1906: *
1907: * AuthorizedKeysFile /etc/ssh_keys/%u
1908: */
1909: case sAuthorizedKeysFile:
1.405 djm 1910: found = options->num_authkeys_files == 0;
1.380 djm 1911: while ((arg = argv_next(&ac, &av)) != NULL) {
1912: if (*arg == '\0') {
1913: error("%s line %d: keyword %s empty argument",
1914: filename, linenum, keyword);
1915: goto out;
1916: }
1917: arg2 = tilde_expand_filename(arg, getuid());
1.405 djm 1918: opt_array_append(filename, linenum, keyword,
1919: &strs, &nstrs, arg2);
1.380 djm 1920: free(arg2);
1.219 djm 1921: }
1.405 djm 1922: if (nstrs == 0) {
1923: fatal("%s line %d: no %s specified",
1924: filename, linenum, keyword);
1925: }
1926: if (found && *activep) {
1927: options->authorized_keys_files = strs;
1928: options->num_authkeys_files = nstrs;
1929: strs = NULL; /* transferred */
1930: nstrs = 0;
1931: }
1.380 djm 1932: break;
1.219 djm 1933:
1.208 djm 1934: case sAuthorizedPrincipalsFile:
1935: charptr = &options->authorized_principals_file;
1.380 djm 1936: arg = argv_next(&ac, &av);
1.205 djm 1937: if (!arg || *arg == '\0')
1.380 djm 1938: fatal("%s line %d: %s missing argument.",
1939: filename, linenum, keyword);
1.205 djm 1940: if (*activep && *charptr == NULL) {
1.206 markus 1941: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1942: /* increase optional counter */
1943: if (intptr != NULL)
1944: *intptr = *intptr + 1;
1945: }
1946: break;
1.94 markus 1947:
1948: case sClientAliveInterval:
1949: intptr = &options->client_alive_interval;
1950: goto parse_time;
1951:
1952: case sClientAliveCountMax:
1953: intptr = &options->client_alive_count_max;
1954: goto parse_int;
1.131 djm 1955:
1956: case sAcceptEnv:
1.405 djm 1957: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 1958: while ((arg = argv_next(&ac, &av)) != NULL) {
1959: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 1960: fatal("%s line %d: Invalid environment name.",
1961: filename, linenum);
1.405 djm 1962: found = 1;
1.153 dtucker 1963: if (!*activep)
1.227 markus 1964: continue;
1.380 djm 1965: opt_array_append(filename, linenum, keyword,
1.314 djm 1966: &options->accept_env, &options->num_accept_env,
1967: arg);
1.131 djm 1968: }
1.405 djm 1969: if (!found) {
1970: fatal("%s line %d: no %s specified",
1971: filename, linenum, keyword);
1972: }
1.131 djm 1973: break;
1.145 reyk 1974:
1.332 djm 1975: case sSetEnv:
1.405 djm 1976: found = options->num_setenv == 0;
1.380 djm 1977: while ((arg = argv_next(&ac, &av)) != NULL) {
1978: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 1979: fatal("%s line %d: Invalid environment.",
1980: filename, linenum);
1.405 djm 1981: if (lookup_setenv_in_list(arg, strs, nstrs) != NULL) {
1.385 djm 1982: debug2("%s line %d: ignoring duplicate env "
1983: "name \"%.64s\"", filename, linenum, arg);
1984: continue;
1985: }
1.380 djm 1986: opt_array_append(filename, linenum, keyword,
1.405 djm 1987: &strs, &nstrs, arg);
1988: }
1989: if (nstrs == 0) {
1990: fatal("%s line %d: no %s specified",
1991: filename, linenum, keyword);
1992: }
1993: if (found && *activep) {
1994: options->setenv = strs;
1995: options->num_setenv = nstrs;
1996: strs = NULL; /* transferred */
1997: nstrs = 0;
1.332 djm 1998: }
1999: break;
2000:
1.145 reyk 2001: case sPermitTunnel:
2002: intptr = &options->permit_tun;
1.380 djm 2003: arg = argv_next(&ac, &av);
1.146 reyk 2004: if (!arg || *arg == '\0')
1.380 djm 2005: fatal("%s line %d: %s missing argument.",
2006: filename, linenum, keyword);
1.182 dtucker 2007: value = -1;
2008: for (i = 0; tunmode_desc[i].val != -1; i++)
2009: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2010: value = tunmode_desc[i].val;
2011: break;
2012: }
2013: if (value == -1)
1.380 djm 2014: fatal("%s line %d: bad %s argument %s",
2015: filename, linenum, keyword, arg);
1.268 djm 2016: if (*activep && *intptr == -1)
1.146 reyk 2017: *intptr = value;
2018: break;
1.94 markus 2019:
1.360 djm 2020: case sInclude:
2021: if (cmdline) {
2022: fatal("Include directive not supported as a "
2023: "command-line option");
2024: }
2025: value = 0;
1.380 djm 2026: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2027: if (*arg2 == '\0') {
2028: error("%s line %d: keyword %s empty argument",
2029: filename, linenum, keyword);
2030: goto out;
2031: }
1.360 djm 2032: value++;
2033: found = 0;
2034: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2035: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2036: } else
2037: arg = xstrdup(arg2);
2038:
2039: /*
2040: * Don't let included files clobber the containing
2041: * file's Match state.
2042: */
2043: oactive = *activep;
2044:
2045: /* consult cache of include files */
2046: TAILQ_FOREACH(item, includes, entry) {
2047: if (strcmp(item->selector, arg) != 0)
2048: continue;
2049: if (item->filename != NULL) {
2050: parse_server_config_depth(options,
2051: item->filename, item->contents,
2052: includes, connectinfo,
1.365 djm 2053: (*inc_flags & SSHCFG_MATCH_ONLY
2054: ? SSHCFG_MATCH_ONLY : (oactive
2055: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2056: activep, depth + 1);
2057: }
2058: found = 1;
2059: *activep = oactive;
2060: }
2061: if (found != 0) {
2062: free(arg);
2063: continue;
2064: }
2065:
2066: /* requested glob was not in cache */
2067: debug2("%s line %d: new include %s",
2068: filename, linenum, arg);
2069: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2070: if (r != GLOB_NOMATCH) {
1.380 djm 2071: fatal("%s line %d: include \"%s\" glob "
2072: "failed", filename, linenum, arg);
1.360 djm 2073: }
2074: /*
2075: * If no entry matched then record a
2076: * placeholder to skip later glob calls.
2077: */
2078: debug2("%s line %d: no match for %s",
2079: filename, linenum, arg);
2080: item = xcalloc(1, sizeof(*item));
2081: item->selector = strdup(arg);
2082: TAILQ_INSERT_TAIL(includes,
2083: item, entry);
2084: }
2085: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2086: fatal_f("too many glob results");
1.360 djm 2087: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2088: debug2("%s line %d: including %s",
2089: filename, linenum, gbuf.gl_pathv[n]);
2090: item = xcalloc(1, sizeof(*item));
2091: item->selector = strdup(arg);
2092: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2093: if ((item->contents = sshbuf_new()) == NULL)
2094: fatal_f("sshbuf_new failed");
1.360 djm 2095: load_server_config(item->filename,
2096: item->contents);
2097: parse_server_config_depth(options,
2098: item->filename, item->contents,
2099: includes, connectinfo,
1.365 djm 2100: (*inc_flags & SSHCFG_MATCH_ONLY
2101: ? SSHCFG_MATCH_ONLY : (oactive
2102: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2103: activep, depth + 1);
2104: *activep = oactive;
2105: TAILQ_INSERT_TAIL(includes, item, entry);
2106: }
2107: globfree(&gbuf);
2108: free(arg);
2109: }
2110: if (value == 0) {
1.380 djm 2111: fatal("%s line %d: %s missing filename argument",
2112: filename, linenum, keyword);
1.360 djm 2113: }
2114: break;
2115:
1.153 dtucker 2116: case sMatch:
2117: if (cmdline)
2118: fatal("Match directive not supported as a command-line "
1.379 djm 2119: "option");
1.380 djm 2120: value = match_cfg_line(&str, linenum,
1.365 djm 2121: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2122: if (value < 0)
2123: fatal("%s line %d: Bad Match condition", filename,
2124: linenum);
1.365 djm 2125: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2126: /*
2127: * The MATCH_ONLY flag is applicable only until the first
2128: * match block.
2129: */
1.365 djm 2130: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2131: /*
2132: * If match_cfg_line() didn't consume all its arguments then
2133: * arrange for the extra arguments check below to fail.
2134: */
2135: if (str == NULL || *str == '\0')
2136: argv_consume(&ac);
1.156 dtucker 2137: break;
2138:
1.330 djm 2139: case sPermitListen:
1.156 dtucker 2140: case sPermitOpen:
1.330 djm 2141: if (opcode == sPermitListen) {
2142: uintptr = &options->num_permitted_listens;
2143: chararrayptr = &options->permitted_listens;
1.329 djm 2144: } else {
2145: uintptr = &options->num_permitted_opens;
2146: chararrayptr = &options->permitted_opens;
2147: }
1.405 djm 2148: found = *uintptr == 0;
2149: while ((arg = argv_next(&ac, &av)) != NULL) {
2150: if (strcmp(arg, "any") == 0 ||
2151: strcmp(arg, "none") == 0) {
2152: if (nstrs != 0) {
2153: fatal("%s line %d: %s must appear "
2154: "alone on a %s line.",
2155: filename, linenum, arg, keyword);
2156: }
2157: opt_array_append(filename, linenum, keyword,
2158: &strs, &nstrs, arg);
2159: continue;
1.311 dtucker 2160: }
1.405 djm 2161:
1.333 djm 2162: if (opcode == sPermitListen &&
2163: strchr(arg, ':') == NULL) {
2164: /*
2165: * Allow bare port number for PermitListen
2166: * to indicate a wildcard listen host.
2167: */
2168: xasprintf(&arg2, "*:%s", arg);
2169: } else {
2170: arg2 = xstrdup(arg);
1.383 dtucker 2171: p = hpdelim(&arg);
2172: if (p == NULL) {
1.380 djm 2173: fatal("%s line %d: %s missing host",
2174: filename, linenum, keyword);
1.333 djm 2175: }
2176: p = cleanhostname(p);
1.329 djm 2177: }
2178: if (arg == NULL ||
2179: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2180: fatal("%s line %d: %s bad port number",
2181: filename, linenum, keyword);
1.329 djm 2182: }
1.405 djm 2183: opt_array_append(filename, linenum, keyword,
2184: &strs, &nstrs, arg2);
1.314 djm 2185: free(arg2);
1.159 dtucker 2186: }
1.405 djm 2187: if (nstrs == 0) {
2188: fatal("%s line %d: %s missing argument.",
2189: filename, linenum, keyword);
2190: }
2191: if (found && *activep) {
2192: *chararrayptr = strs;
2193: *uintptr = nstrs;
2194: strs = NULL; /* transferred */
2195: nstrs = 0;
2196: }
1.153 dtucker 2197: break;
2198:
1.158 dtucker 2199: case sForceCommand:
1.380 djm 2200: if (str == NULL || *str == '\0')
2201: fatal("%s line %d: %s missing argument.",
2202: filename, linenum, keyword);
2203: len = strspn(str, WHITESPACE);
1.158 dtucker 2204: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2205: options->adm_forced_command = xstrdup(str + len);
2206: argv_consume(&ac);
2207: break;
1.158 dtucker 2208:
1.176 djm 2209: case sChrootDirectory:
2210: charptr = &options->chroot_directory;
1.177 djm 2211:
1.380 djm 2212: arg = argv_next(&ac, &av);
1.177 djm 2213: if (!arg || *arg == '\0')
1.380 djm 2214: fatal("%s line %d: %s missing argument.",
2215: filename, linenum, keyword);
1.177 djm 2216: if (*activep && *charptr == NULL)
2217: *charptr = xstrdup(arg);
2218: break;
1.176 djm 2219:
1.204 djm 2220: case sTrustedUserCAKeys:
2221: charptr = &options->trusted_user_ca_keys;
2222: goto parse_filename;
2223:
2224: case sRevokedKeys:
2225: charptr = &options->revoked_keys_file;
2226: goto parse_filename;
2227:
1.355 djm 2228: case sSecurityKeyProvider:
2229: charptr = &options->sk_provider;
1.380 djm 2230: arg = argv_next(&ac, &av);
1.356 djm 2231: if (!arg || *arg == '\0')
1.380 djm 2232: fatal("%s line %d: %s missing argument.",
2233: filename, linenum, keyword);
1.356 djm 2234: if (*activep && *charptr == NULL) {
2235: *charptr = strcasecmp(arg, "internal") == 0 ?
2236: xstrdup(arg) : derelativise_path(arg);
2237: /* increase optional counter */
2238: if (intptr != NULL)
2239: *intptr = *intptr + 1;
2240: }
2241: break;
1.355 djm 2242:
1.213 djm 2243: case sIPQoS:
1.380 djm 2244: arg = argv_next(&ac, &av);
2245: if (!arg || *arg == '\0')
2246: fatal("%s line %d: %s missing argument.",
2247: filename, linenum, keyword);
1.213 djm 2248: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2249: fatal("%s line %d: Bad %s value: %s",
2250: filename, linenum, keyword, arg);
2251: arg = argv_next(&ac, &av);
1.213 djm 2252: if (arg == NULL)
2253: value2 = value;
2254: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2255: fatal("%s line %d: Bad %s value: %s",
2256: filename, linenum, keyword, arg);
1.213 djm 2257: if (*activep) {
2258: options->ip_qos_interactive = value;
2259: options->ip_qos_bulk = value2;
2260: }
2261: break;
2262:
1.225 djm 2263: case sVersionAddendum:
1.380 djm 2264: if (str == NULL || *str == '\0')
2265: fatal("%s line %d: %s missing argument.",
2266: filename, linenum, keyword);
2267: len = strspn(str, WHITESPACE);
2268: if (strchr(str + len, '\r') != NULL) {
2269: fatal("%.200s line %d: Invalid %s argument",
2270: filename, linenum, keyword);
2271: }
2272: if ((arg = strchr(line, '#')) != NULL) {
2273: *arg = '\0';
2274: rtrim(line);
2275: }
1.225 djm 2276: if (*activep && options->version_addendum == NULL) {
1.380 djm 2277: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2278: options->version_addendum = xstrdup("");
2279: else
1.380 djm 2280: options->version_addendum = xstrdup(str + len);
1.225 djm 2281: }
1.380 djm 2282: argv_consume(&ac);
2283: break;
1.225 djm 2284:
1.231 djm 2285: case sAuthorizedKeysCommand:
1.380 djm 2286: charptr = &options->authorized_keys_command;
2287: parse_command:
2288: len = strspn(str, WHITESPACE);
2289: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2290: fatal("%.200s line %d: %s must be an absolute path",
2291: filename, linenum, keyword);
2292: }
1.393 djm 2293: if (*activep && *charptr == NULL)
1.380 djm 2294: *charptr = xstrdup(str + len);
2295: argv_consume(&ac);
2296: break;
1.231 djm 2297:
2298: case sAuthorizedKeysCommandUser:
2299: charptr = &options->authorized_keys_command_user;
1.380 djm 2300: parse_localuser:
2301: arg = argv_next(&ac, &av);
2302: if (!arg || *arg == '\0') {
2303: fatal("%s line %d: missing %s argument.",
2304: filename, linenum, keyword);
2305: }
1.231 djm 2306: if (*activep && *charptr == NULL)
2307: *charptr = xstrdup(arg);
2308: break;
2309:
1.270 djm 2310: case sAuthorizedPrincipalsCommand:
1.380 djm 2311: charptr = &options->authorized_principals_command;
2312: goto parse_command;
1.270 djm 2313:
2314: case sAuthorizedPrincipalsCommandUser:
2315: charptr = &options->authorized_principals_command_user;
1.380 djm 2316: goto parse_localuser;
1.270 djm 2317:
1.232 djm 2318: case sAuthenticationMethods:
1.380 djm 2319: found = options->num_auth_methods == 0;
2320: value = 0; /* seen "any" pseudo-method */
2321: while ((arg = argv_next(&ac, &av)) != NULL) {
2322: if (strcmp(arg, "any") == 0) {
1.405 djm 2323: if (nstrs > 0) {
1.380 djm 2324: fatal("%s line %d: \"any\" must "
2325: "appear alone in %s",
2326: filename, linenum, keyword);
1.291 djm 2327: }
1.380 djm 2328: value = 1;
2329: } else if (value) {
2330: fatal("%s line %d: \"any\" must appear "
2331: "alone in %s", filename, linenum, keyword);
2332: } else if (auth2_methods_valid(arg, 0) != 0) {
2333: fatal("%s line %d: invalid %s method list.",
2334: filename, linenum, keyword);
1.291 djm 2335: }
1.380 djm 2336: opt_array_append(filename, linenum, keyword,
1.405 djm 2337: &strs, &nstrs, arg);
1.380 djm 2338: }
1.405 djm 2339: if (nstrs == 0) {
1.380 djm 2340: fatal("%s line %d: no %s specified",
2341: filename, linenum, keyword);
1.232 djm 2342: }
1.405 djm 2343: if (found && *activep) {
2344: options->auth_methods = strs;
2345: options->num_auth_methods = nstrs;
2346: strs = NULL; /* transferred */
2347: nstrs = 0;
2348: }
1.380 djm 2349: break;
1.232 djm 2350:
1.251 millert 2351: case sStreamLocalBindMask:
1.380 djm 2352: arg = argv_next(&ac, &av);
1.251 millert 2353: if (!arg || *arg == '\0')
1.380 djm 2354: fatal("%s line %d: %s missing argument.",
2355: filename, linenum, keyword);
1.251 millert 2356: /* Parse mode in octal format */
2357: value = strtol(arg, &p, 8);
2358: if (arg == p || value < 0 || value > 0777)
1.380 djm 2359: fatal("%s line %d: Invalid %s.",
2360: filename, linenum, keyword);
1.268 djm 2361: if (*activep)
2362: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2363: break;
2364:
2365: case sStreamLocalBindUnlink:
2366: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2367: goto parse_flag;
2368:
1.256 djm 2369: case sFingerprintHash:
1.380 djm 2370: arg = argv_next(&ac, &av);
1.256 djm 2371: if (!arg || *arg == '\0')
1.380 djm 2372: fatal("%s line %d: %s missing argument.",
2373: filename, linenum, keyword);
1.256 djm 2374: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2375: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2376: filename, linenum, keyword, arg);
1.256 djm 2377: if (*activep)
2378: options->fingerprint_hash = value;
2379: break;
2380:
1.309 djm 2381: case sExposeAuthInfo:
2382: intptr = &options->expose_userauth_info;
2383: goto parse_flag;
2384:
1.316 djm 2385: case sRDomain:
2386: charptr = &options->routing_domain;
1.380 djm 2387: arg = argv_next(&ac, &av);
1.316 djm 2388: if (!arg || *arg == '\0')
1.380 djm 2389: fatal("%s line %d: %s missing argument.",
2390: filename, linenum, keyword);
1.316 djm 2391: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2392: !valid_rdomain(arg))
1.380 djm 2393: fatal("%s line %d: invalid routing domain",
1.316 djm 2394: filename, linenum);
2395: if (*activep && *charptr == NULL)
2396: *charptr = xstrdup(arg);
1.321 dtucker 2397: break;
1.316 djm 2398:
1.386 djm 2399: case sRequiredRSASize:
2400: intptr = &options->required_rsa_size;
2401: goto parse_int;
2402:
1.389 djm 2403: case sChannelTimeout:
1.405 djm 2404: found = options->num_channel_timeouts == 0;
1.389 djm 2405: while ((arg = argv_next(&ac, &av)) != NULL) {
2406: /* Allow "none" only in first position */
2407: if (strcasecmp(arg, "none") == 0) {
1.405 djm 2408: if (nstrs > 0 || ac > 0) {
1.389 djm 2409: error("%s line %d: keyword %s \"none\" "
2410: "argument must appear alone.",
2411: filename, linenum, keyword);
2412: goto out;
2413: }
1.403 djm 2414: } else if (parse_pattern_interval(arg,
2415: NULL, NULL) != 0) {
1.389 djm 2416: fatal("%s line %d: invalid channel timeout %s",
2417: filename, linenum, arg);
2418: }
2419: opt_array_append(filename, linenum, keyword,
1.405 djm 2420: &strs, &nstrs, arg);
2421: }
2422: if (nstrs == 0) {
2423: fatal("%s line %d: no %s specified",
2424: filename, linenum, keyword);
2425: }
2426: if (found && *activep) {
2427: options->channel_timeouts = strs;
2428: options->num_channel_timeouts = nstrs;
2429: strs = NULL; /* transferred */
2430: nstrs = 0;
1.389 djm 2431: }
2432: break;
2433:
1.390 djm 2434: case sUnusedConnectionTimeout:
2435: intptr = &options->unused_connection_timeout;
2436: /* peek at first arg for "none" so we can reuse parse_time */
2437: if (av[0] != NULL && strcasecmp(av[0], "none") == 0) {
2438: (void)argv_next(&ac, &av); /* consume arg */
2439: if (*activep)
2440: *intptr = 0;
2441: break;
2442: }
2443: goto parse_time;
2444:
1.407 ! djm 2445: case sSshdSessionPath:
1.406 djm 2446: charptr = &options->sshd_session_path;
2447: goto parse_filename;
2448:
1.94 markus 2449: case sDeprecated:
1.295 djm 2450: case sIgnore:
1.121 jakob 2451: case sUnsupported:
1.295 djm 2452: do_log2(opcode == sIgnore ?
2453: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2454: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2455: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2456: keyword);
2457: argv_consume(&ac);
1.94 markus 2458: break;
2459:
2460: default:
2461: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2462: filename, linenum, keyword, opcode);
2463: }
2464: /* Check that there is no garbage at end of line. */
2465: if (ac > 0) {
2466: error("%.200s line %d: keyword %s extra arguments "
2467: "at end of line", filename, linenum, keyword);
2468: goto out;
1.94 markus 2469: }
1.380 djm 2470:
2471: /* success */
2472: ret = 0;
2473: out:
1.405 djm 2474: opt_array_free2(strs, NULL, nstrs);
1.380 djm 2475: argv_free(oav, oac);
2476: return ret;
1.94 markus 2477: }
2478:
1.360 djm 2479: int
2480: process_server_config_line(ServerOptions *options, char *line,
2481: const char *filename, int linenum, int *activep,
2482: struct connection_info *connectinfo, struct include_list *includes)
2483: {
1.365 djm 2484: int inc_flags = 0;
2485:
1.360 djm 2486: return process_server_config_line_depth(options, line, filename,
1.365 djm 2487: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2488: }
2489:
2490:
1.94 markus 2491: /* Reads the server configuration file. */
1.25 markus 2492:
1.94 markus 2493: void
1.338 markus 2494: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2495: {
1.366 markus 2496: struct stat st;
1.331 markus 2497: char *line = NULL, *cp;
2498: size_t linesize = 0;
1.94 markus 2499: FILE *f;
1.388 dtucker 2500: int r;
1.81 stevesk 2501:
1.371 djm 2502: debug2_f("filename %s", filename);
1.134 djm 2503: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2504: perror(filename);
2505: exit(1);
2506: }
1.338 markus 2507: sshbuf_reset(conf);
1.366 markus 2508: /* grow buffer, so realloc is avoided for large config files */
2509: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2510: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2511: fatal_fr(r, "allocate");
1.331 markus 2512: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2513: /*
1.380 djm 2514: * Strip whitespace
1.135 deraadt 2515: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2516: * line numbers later for error messages
2517: */
2518: cp = line + strspn(line, " \t\r");
1.338 markus 2519: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2520: fatal_fr(r, "sshbuf_put");
1.134 djm 2521: }
1.331 markus 2522: free(line);
1.338 markus 2523: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2524: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2525: fclose(f);
1.371 djm 2526: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2527: }
2528:
2529: void
1.226 dtucker 2530: parse_server_match_config(ServerOptions *options,
1.360 djm 2531: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2532: {
2533: ServerOptions mo;
2534:
2535: initialize_server_options(&mo);
1.360 djm 2536: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2537: connectinfo, 0);
1.168 dtucker 2538: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2539: }
2540:
1.226 dtucker 2541: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2542: {
2543: char *p;
2544:
2545: while ((p = strsep(&spec, ",")) && *p != '\0') {
2546: if (strncmp(p, "addr=", 5) == 0) {
2547: ci->address = xstrdup(p + 5);
2548: } else if (strncmp(p, "host=", 5) == 0) {
2549: ci->host = xstrdup(p + 5);
2550: } else if (strncmp(p, "user=", 5) == 0) {
2551: ci->user = xstrdup(p + 5);
2552: } else if (strncmp(p, "laddr=", 6) == 0) {
2553: ci->laddress = xstrdup(p + 6);
1.317 djm 2554: } else if (strncmp(p, "rdomain=", 8) == 0) {
2555: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2556: } else if (strncmp(p, "lport=", 6) == 0) {
2557: ci->lport = a2port(p + 6);
2558: if (ci->lport == -1) {
2559: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2560: " specification %s\n", p+6, p);
1.226 dtucker 2561: return -1;
2562: }
2563: } else {
2564: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2565: p);
1.226 dtucker 2566: return -1;
2567: }
2568: }
2569: return 0;
2570: }
2571:
1.401 djm 2572: void
2573: servconf_merge_subsystems(ServerOptions *dst, ServerOptions *src)
2574: {
2575: u_int i, j, found;
2576:
2577: for (i = 0; i < src->num_subsystems; i++) {
2578: found = 0;
2579: for (j = 0; j < dst->num_subsystems; j++) {
2580: if (strcmp(src->subsystem_name[i],
2581: dst->subsystem_name[j]) == 0) {
2582: found = 1;
2583: break;
2584: }
2585: }
2586: if (found) {
2587: debug_f("override \"%s\"", dst->subsystem_name[j]);
2588: free(dst->subsystem_command[j]);
2589: free(dst->subsystem_args[j]);
2590: dst->subsystem_command[j] =
2591: xstrdup(src->subsystem_command[i]);
2592: dst->subsystem_args[j] =
2593: xstrdup(src->subsystem_args[i]);
2594: continue;
2595: }
2596: debug_f("add \"%s\"", src->subsystem_name[i]);
2597: dst->subsystem_name = xrecallocarray(
2598: dst->subsystem_name, dst->num_subsystems,
1.402 djm 2599: dst->num_subsystems + 1, sizeof(*dst->subsystem_name));
1.401 djm 2600: dst->subsystem_command = xrecallocarray(
2601: dst->subsystem_command, dst->num_subsystems,
1.402 djm 2602: dst->num_subsystems + 1, sizeof(*dst->subsystem_command));
1.401 djm 2603: dst->subsystem_args = xrecallocarray(
2604: dst->subsystem_args, dst->num_subsystems,
1.402 djm 2605: dst->num_subsystems + 1, sizeof(*dst->subsystem_args));
1.401 djm 2606: j = dst->num_subsystems++;
2607: dst->subsystem_name[j] = xstrdup(src->subsystem_name[i]);
2608: dst->subsystem_command[j] = xstrdup(src->subsystem_command[i]);
2609: dst->subsystem_args[j] = xstrdup(src->subsystem_args[i]);
2610: }
2611: }
2612:
1.168 dtucker 2613: /*
2614: * Copy any supported values that are set.
2615: *
1.195 jj 2616: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2617: * array values that are not used pre-authentication, because any that we
1.328 djm 2618: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2619: */
1.153 dtucker 2620: void
1.168 dtucker 2621: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2622: {
1.247 djm 2623: #define M_CP_INTOPT(n) do {\
2624: if (src->n != -1) \
2625: dst->n = src->n; \
2626: } while (0)
2627:
1.168 dtucker 2628: M_CP_INTOPT(password_authentication);
2629: M_CP_INTOPT(gss_authentication);
2630: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2631: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2632: M_CP_INTOPT(kerberos_authentication);
2633: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2634: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2635: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2636: M_CP_INTOPT(permit_root_login);
1.188 djm 2637: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2638: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2639:
2640: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2641: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2642: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2643: M_CP_INTOPT(disable_forwarding);
1.309 djm 2644: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2645: M_CP_INTOPT(permit_tun);
1.251 millert 2646: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2647: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2648: M_CP_INTOPT(x11_display_offset);
2649: M_CP_INTOPT(x11_forwarding);
2650: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2651: M_CP_INTOPT(permit_tty);
1.250 djm 2652: M_CP_INTOPT(permit_user_rc);
1.180 djm 2653: M_CP_INTOPT(max_sessions);
1.184 dtucker 2654: M_CP_INTOPT(max_authtries);
1.300 markus 2655: M_CP_INTOPT(client_alive_count_max);
2656: M_CP_INTOPT(client_alive_interval);
1.213 djm 2657: M_CP_INTOPT(ip_qos_interactive);
2658: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2659: M_CP_INTOPT(rekey_limit);
2660: M_CP_INTOPT(rekey_interval);
1.308 djm 2661: M_CP_INTOPT(log_level);
1.386 djm 2662: M_CP_INTOPT(required_rsa_size);
1.390 djm 2663: M_CP_INTOPT(unused_connection_timeout);
1.289 djm 2664:
2665: /*
2666: * The bind_mask is a mode_t that may be unsigned, so we can't use
2667: * M_CP_INTOPT - it does a signed comparison that causes compiler
2668: * warnings.
2669: */
1.290 dtucker 2670: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2671: dst->fwd_opts.streamlocal_bind_mask =
2672: src->fwd_opts.streamlocal_bind_mask;
2673: }
1.247 djm 2674:
2675: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2676: #define M_CP_STROPT(n) do {\
2677: if (src->n != NULL && dst->n != src->n) { \
2678: free(dst->n); \
2679: dst->n = src->n; \
2680: } \
2681: } while(0)
1.314 djm 2682: #define M_CP_STRARRAYOPT(s, num_s) do {\
2683: u_int i; \
2684: if (src->num_s != 0) { \
2685: for (i = 0; i < dst->num_s; i++) \
2686: free(dst->s[i]); \
2687: free(dst->s); \
2688: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2689: for (i = 0; i < src->num_s; i++) \
2690: dst->s[i] = xstrdup(src->s[i]); \
2691: dst->num_s = src->num_s; \
1.312 djm 2692: } \
2693: } while(0)
1.168 dtucker 2694:
1.218 djm 2695: /* See comment in servconf.h */
2696: COPY_MATCH_STRING_OPTS();
1.282 djm 2697:
2698: /* Arguments that accept '+...' need to be expanded */
2699: assemble_algorithms(dst);
1.216 djm 2700:
1.217 dtucker 2701: /*
2702: * The only things that should be below this point are string options
2703: * which are only used after authentication.
2704: */
1.168 dtucker 2705: if (preauth)
2706: return;
1.219 djm 2707:
1.283 djm 2708: /* These options may be "none" to clear a global setting */
1.168 dtucker 2709: M_CP_STROPT(adm_forced_command);
1.283 djm 2710: if (option_clear_or_none(dst->adm_forced_command)) {
2711: free(dst->adm_forced_command);
2712: dst->adm_forced_command = NULL;
2713: }
1.176 djm 2714: M_CP_STROPT(chroot_directory);
1.283 djm 2715: if (option_clear_or_none(dst->chroot_directory)) {
2716: free(dst->chroot_directory);
2717: dst->chroot_directory = NULL;
2718: }
1.401 djm 2719:
2720: /* Subsystems require merging. */
2721: servconf_merge_subsystems(dst, src);
1.153 dtucker 2722: }
1.168 dtucker 2723:
2724: #undef M_CP_INTOPT
2725: #undef M_CP_STROPT
1.219 djm 2726: #undef M_CP_STRARRAYOPT
1.153 dtucker 2727:
1.360 djm 2728: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2729: static void
1.360 djm 2730: parse_server_config_depth(ServerOptions *options, const char *filename,
2731: struct sshbuf *conf, struct include_list *includes,
2732: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2733: {
1.360 djm 2734: int linenum, bad_options = 0;
1.136 dtucker 2735: char *cp, *obuf, *cbuf;
1.134 djm 2736:
1.360 djm 2737: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2738: fatal("Too many recursive configuration includes");
2739:
1.371 djm 2740: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2741: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2742:
1.287 djm 2743: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2744: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2745: linenum = 1;
1.140 deraadt 2746: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2747: if (process_server_config_line_depth(options, cp,
1.365 djm 2748: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2749: depth, includes) != 0)
1.94 markus 2750: bad_options++;
1.1 deraadt 2751: }
1.239 djm 2752: free(obuf);
1.78 stevesk 2753: if (bad_options > 0)
2754: fatal("%s: terminating, %d bad configuration options",
2755: filename, bad_options);
1.360 djm 2756: }
2757:
2758: void
2759: parse_server_config(ServerOptions *options, const char *filename,
2760: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2761: struct connection_info *connectinfo, int reexec)
1.360 djm 2762: {
2763: int active = connectinfo ? 0 : 1;
2764: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2765: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2766: if (!reexec)
2767: process_queued_listen_addrs(options);
1.182 dtucker 2768: }
2769:
2770: static const char *
1.221 djm 2771: fmt_multistate_int(int val, const struct multistate *m)
2772: {
2773: u_int i;
2774:
2775: for (i = 0; m[i].key != NULL; i++) {
2776: if (m[i].value == val)
2777: return m[i].key;
2778: }
2779: return "UNKNOWN";
2780: }
2781:
2782: static const char *
1.182 dtucker 2783: fmt_intarg(ServerOpCodes code, int val)
2784: {
1.221 djm 2785: if (val == -1)
2786: return "unset";
2787: switch (code) {
2788: case sAddressFamily:
2789: return fmt_multistate_int(val, multistate_addressfamily);
2790: case sPermitRootLogin:
2791: return fmt_multistate_int(val, multistate_permitrootlogin);
2792: case sGatewayPorts:
2793: return fmt_multistate_int(val, multistate_gatewayports);
2794: case sCompression:
2795: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2796: case sAllowTcpForwarding:
2797: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2798: case sAllowStreamLocalForwarding:
2799: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2800: case sIgnoreRhosts:
2801: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2802: case sFingerprintHash:
2803: return ssh_digest_alg_name(val);
1.221 djm 2804: default:
2805: switch (val) {
2806: case 0:
2807: return "no";
2808: case 1:
2809: return "yes";
2810: default:
2811: return "UNKNOWN";
2812: }
1.182 dtucker 2813: }
2814: }
2815:
2816: static void
2817: dump_cfg_int(ServerOpCodes code, int val)
2818: {
1.390 djm 2819: if (code == sUnusedConnectionTimeout && val == 0) {
2820: printf("%s none\n", lookup_opcode_name(code));
2821: return;
2822: }
1.182 dtucker 2823: printf("%s %d\n", lookup_opcode_name(code), val);
2824: }
2825:
2826: static void
1.263 dtucker 2827: dump_cfg_oct(ServerOpCodes code, int val)
2828: {
2829: printf("%s 0%o\n", lookup_opcode_name(code), val);
2830: }
2831:
2832: static void
1.182 dtucker 2833: dump_cfg_fmtint(ServerOpCodes code, int val)
2834: {
2835: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2836: }
2837:
2838: static void
2839: dump_cfg_string(ServerOpCodes code, const char *val)
2840: {
1.257 djm 2841: printf("%s %s\n", lookup_opcode_name(code),
2842: val == NULL ? "none" : val);
1.182 dtucker 2843: }
2844:
2845: static void
2846: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2847: {
2848: u_int i;
2849:
2850: for (i = 0; i < count; i++)
1.219 djm 2851: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2852: }
2853:
2854: static void
2855: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2856: {
2857: u_int i;
2858:
1.391 djm 2859: switch (code) {
2860: case sAuthenticationMethods:
2861: case sChannelTimeout:
2862: break;
2863: default:
2864: if (count <= 0)
2865: return;
2866: break;
2867: }
2868:
1.219 djm 2869: printf("%s", lookup_opcode_name(code));
2870: for (i = 0; i < count; i++)
2871: printf(" %s", vals[i]);
1.291 djm 2872: if (code == sAuthenticationMethods && count == 0)
2873: printf(" any");
1.389 djm 2874: else if (code == sChannelTimeout && count == 0)
2875: printf(" none");
1.219 djm 2876: printf("\n");
1.182 dtucker 2877: }
2878:
1.315 djm 2879: static char *
2880: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2881: {
1.315 djm 2882: int r;
1.182 dtucker 2883: struct addrinfo *ai;
1.315 djm 2884: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2885: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2886:
1.263 dtucker 2887: /*
2888: * ListenAddress must be after Port. add_one_listen_addr pushes
2889: * addresses onto a stack, so to maintain ordering we need to
2890: * print these in reverse order.
2891: */
1.315 djm 2892: for (ai = la->addrs; ai; ai = ai->ai_next) {
2893: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2894: sizeof(addr), port, sizeof(port),
2895: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2896: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2897: continue;
2898: }
2899: laddr2 = laddr1;
2900: if (ai->ai_family == AF_INET6) {
2901: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2902: addr, port,
2903: la->rdomain == NULL ? "" : " rdomain ",
2904: la->rdomain == NULL ? "" : la->rdomain,
2905: laddr2);
1.182 dtucker 2906: } else {
1.315 djm 2907: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2908: addr, port,
2909: la->rdomain == NULL ? "" : " rdomain ",
2910: la->rdomain == NULL ? "" : la->rdomain,
2911: laddr2);
1.182 dtucker 2912: }
1.315 djm 2913: free(laddr2);
2914: }
2915: return laddr1;
2916: }
2917:
2918: void
2919: dump_config(ServerOptions *o)
2920: {
2921: char *s;
2922: u_int i;
2923:
2924: /* these are usually at the top of the config */
2925: for (i = 0; i < o->num_ports; i++)
2926: printf("port %d\n", o->ports[i]);
2927: dump_cfg_fmtint(sAddressFamily, o->address_family);
2928:
2929: for (i = 0; i < o->num_listen_addrs; i++) {
2930: s = format_listen_addrs(&o->listen_addrs[i]);
2931: printf("%s", s);
2932: free(s);
1.182 dtucker 2933: }
2934:
2935: /* integer arguments */
2936: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2937: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2938: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2939: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2940: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2941: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 2942: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 2943: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.390 djm 2944: dump_cfg_int(sUnusedConnectionTimeout, o->unused_connection_timeout);
1.182 dtucker 2945:
2946: /* formatted integer arguments */
2947: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2948: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2949: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2950: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2951: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2952: o->hostbased_uses_name_from_packet_only);
2953: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2954: #ifdef KRB5
1.182 dtucker 2955: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2956: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2957: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2958: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2959: #endif
2960: #ifdef GSSAPI
1.182 dtucker 2961: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2962: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2963: #endif
1.182 dtucker 2964: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2965: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2966: o->kbd_interactive_authentication);
2967: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2968: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2969: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2970: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2971: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2972: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2973: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2974: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2975: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2976: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2977: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2978: dump_cfg_fmtint(sUseDNS, o->use_dns);
2979: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2980: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2981: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2982: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2983: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2984: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2985: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2986:
2987: /* string arguments */
2988: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 2989: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 2990: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 2991: dump_cfg_string(sCiphers, o->ciphers);
2992: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 2993: dump_cfg_string(sBanner, o->banner);
2994: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2995: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2996: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2997: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 2998: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 2999: dump_cfg_string(sAuthorizedPrincipalsFile,
3000: o->authorized_principals_file);
1.261 dtucker 3001: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
3002: ? "none" : o->version_addendum);
1.231 djm 3003: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
3004: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 3005: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
3006: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 3007: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 3008: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
3009: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 3010: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 3011: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 3012: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 3013: dump_cfg_string(sRDomain, o->routing_domain);
1.407 ! djm 3014: dump_cfg_string(sSshdSessionPath, o->sshd_session_path);
1.182 dtucker 3015:
3016: /* string arguments requiring a lookup */
3017: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
3018: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
3019:
3020: /* string array arguments */
1.219 djm 3021: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
3022: o->authorized_keys_files);
1.182 dtucker 3023: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 3024: o->host_key_files);
1.261 dtucker 3025: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 3026: o->host_cert_files);
1.182 dtucker 3027: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
3028: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
3029: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3030: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3031: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3032: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3033: dump_cfg_strarray_oneline(sAuthenticationMethods,
3034: o->num_auth_methods, o->auth_methods);
1.370 djm 3035: dump_cfg_strarray_oneline(sLogVerbose,
3036: o->num_log_verbose, o->log_verbose);
1.389 djm 3037: dump_cfg_strarray_oneline(sChannelTimeout,
3038: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3039:
3040: /* other arguments */
3041: for (i = 0; i < o->num_subsystems; i++)
3042: printf("subsystem %s %s\n", o->subsystem_name[i],
3043: o->subsystem_args[i]);
3044:
3045: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3046: o->max_startups_rate, o->max_startups);
1.372 dtucker 3047: printf("persourcemaxstartups ");
3048: if (o->per_source_max_startups == INT_MAX)
3049: printf("none\n");
3050: else
3051: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3052: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3053: o->per_source_masklen_ipv6);
1.182 dtucker 3054:
1.318 djm 3055: s = NULL;
3056: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3057: if (tunmode_desc[i].val == o->permit_tun) {
3058: s = tunmode_desc[i].text;
3059: break;
3060: }
1.318 djm 3061: }
1.182 dtucker 3062: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3063:
1.214 stevesk 3064: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3065: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3066:
1.284 dtucker 3067: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3068: o->rekey_interval);
1.182 dtucker 3069:
1.310 djm 3070: printf("permitopen");
3071: if (o->num_permitted_opens == 0)
3072: printf(" any");
3073: else {
3074: for (i = 0; i < o->num_permitted_opens; i++)
3075: printf(" %s", o->permitted_opens[i]);
1.329 djm 3076: }
3077: printf("\n");
1.330 djm 3078: printf("permitlisten");
3079: if (o->num_permitted_listens == 0)
1.329 djm 3080: printf(" any");
3081: else {
1.330 djm 3082: for (i = 0; i < o->num_permitted_listens; i++)
3083: printf(" %s", o->permitted_listens[i]);
1.310 djm 3084: }
3085: printf("\n");
1.334 djm 3086:
1.367 djm 3087: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3088: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3089: } else {
3090: printf("permituserenvironment %s\n",
1.367 djm 3091: o->permit_user_env_allowlist);
1.334 djm 3092: }
3093:
1.354 djm 3094: printf("pubkeyauthoptions");
3095: if (o->pubkey_auth_options == 0)
3096: printf(" none");
3097: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3098: printf(" touch-required");
1.368 djm 3099: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3100: printf(" verify-required");
1.354 djm 3101: printf("\n");
1.1 deraadt 3102: }
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