Annotation of src/usr.bin/ssh/servconf.c, Revision 1.405
1.405 ! djm 1: /* $OpenBSD: servconf.c,v 1.404 2024/02/20 04:10:03 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:
1.102 provos 67: /* Use of privilege separation or not */
68: extern int use_privsep;
1.338 markus 69: extern struct sshbuf *cfg;
1.62 markus 70:
1.1 deraadt 71: /* Initializes the server options to their default values. */
72:
1.34 markus 73: void
1.25 markus 74: initialize_server_options(ServerOptions *options)
1.1 deraadt 75: {
1.25 markus 76: memset(options, 0, sizeof(*options));
1.29 markus 77: options->num_ports = 0;
78: options->ports_from_cmdline = 0;
1.266 dtucker 79: options->queued_listen_addrs = NULL;
80: options->num_queued_listens = 0;
1.29 markus 81: options->listen_addrs = NULL;
1.315 djm 82: options->num_listen_addrs = 0;
1.138 djm 83: options->address_family = -1;
1.316 djm 84: options->routing_domain = NULL;
1.54 markus 85: options->num_host_key_files = 0;
1.203 djm 86: options->num_host_cert_files = 0;
1.240 markus 87: options->host_key_agent = NULL;
1.36 markus 88: options->pid_file = NULL;
1.25 markus 89: options->login_grace_time = -1;
1.279 chris 90: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 91: options->ignore_rhosts = -1;
92: options->ignore_user_known_hosts = -1;
93: options->print_motd = -1;
1.72 stevesk 94: options->print_lastlog = -1;
1.25 markus 95: options->x11_forwarding = -1;
96: options->x11_display_offset = -1;
1.99 stevesk 97: options->x11_use_localhost = -1;
1.244 djm 98: options->permit_tty = -1;
1.250 djm 99: options->permit_user_rc = -1;
1.42 markus 100: options->xauth_location = NULL;
1.25 markus 101: options->strict_modes = -1;
1.129 markus 102: options->tcp_keep_alive = -1;
1.101 markus 103: options->log_facility = SYSLOG_FACILITY_NOT_SET;
104: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.370 djm 105: options->num_log_verbose = 0;
106: options->log_verbose = NULL;
1.75 markus 107: options->hostbased_authentication = -1;
108: options->hostbased_uses_name_from_packet_only = -1;
1.375 dtucker 109: options->hostbased_accepted_algos = NULL;
1.276 markus 110: options->hostkeyalgorithms = NULL;
1.54 markus 111: options->pubkey_authentication = -1;
1.354 djm 112: options->pubkey_auth_options = -1;
1.374 dtucker 113: options->pubkey_accepted_algos = NULL;
1.25 markus 114: options->kerberos_authentication = -1;
115: options->kerberos_or_local_passwd = -1;
116: options->kerberos_ticket_cleanup = -1;
1.130 jakob 117: options->kerberos_get_afs_token = -1;
1.125 markus 118: options->gss_authentication=-1;
119: options->gss_cleanup_creds = -1;
1.271 djm 120: options->gss_strict_acceptor = -1;
1.25 markus 121: options->password_authentication = -1;
1.52 markus 122: options->kbd_interactive_authentication = -1;
1.25 markus 123: options->permit_empty_passwd = -1;
1.113 markus 124: options->permit_user_env = -1;
1.367 djm 125: options->permit_user_env_allowlist = NULL;
1.111 markus 126: options->compression = -1;
1.235 dtucker 127: options->rekey_limit = -1;
128: options->rekey_interval = -1;
1.53 markus 129: options->allow_tcp_forwarding = -1;
1.251 millert 130: options->allow_streamlocal_forwarding = -1;
1.178 pyr 131: options->allow_agent_forwarding = -1;
1.25 markus 132: options->num_allow_users = 0;
133: options->num_deny_users = 0;
134: options->num_allow_groups = 0;
135: options->num_deny_groups = 0;
1.33 markus 136: options->ciphers = NULL;
1.66 markus 137: options->macs = NULL;
1.211 djm 138: options->kex_algorithms = NULL;
1.341 djm 139: options->ca_sign_algorithms = NULL;
1.251 millert 140: options->fwd_opts.gateway_ports = -1;
141: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
142: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 143: options->num_subsystems = 0;
1.50 markus 144: options->max_startups_begin = -1;
145: options->max_startups_rate = -1;
1.46 markus 146: options->max_startups = -1;
1.372 dtucker 147: options->per_source_max_startups = -1;
148: options->per_source_masklen_ipv4 = -1;
149: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 150: options->max_authtries = -1;
1.180 djm 151: options->max_sessions = -1;
1.57 markus 152: options->banner = NULL;
1.122 markus 153: options->use_dns = -1;
1.77 beck 154: options->client_alive_interval = -1;
155: options->client_alive_count_max = -1;
1.219 djm 156: options->num_authkeys_files = 0;
1.131 djm 157: options->num_accept_env = 0;
1.332 djm 158: options->num_setenv = 0;
1.145 reyk 159: options->permit_tun = -1;
1.310 djm 160: options->permitted_opens = NULL;
1.330 djm 161: options->permitted_listens = NULL;
1.158 dtucker 162: options->adm_forced_command = NULL;
1.176 djm 163: options->chroot_directory = NULL;
1.231 djm 164: options->authorized_keys_command = NULL;
165: options->authorized_keys_command_user = NULL;
1.204 djm 166: options->revoked_keys_file = NULL;
1.355 djm 167: options->sk_provider = NULL;
1.204 djm 168: options->trusted_user_ca_keys = NULL;
1.208 djm 169: options->authorized_principals_file = NULL;
1.270 djm 170: options->authorized_principals_command = NULL;
171: options->authorized_principals_command_user = NULL;
1.213 djm 172: options->ip_qos_interactive = -1;
173: options->ip_qos_bulk = -1;
1.225 djm 174: options->version_addendum = NULL;
1.256 djm 175: options->fingerprint_hash = -1;
1.301 djm 176: options->disable_forwarding = -1;
1.309 djm 177: options->expose_userauth_info = -1;
1.386 djm 178: options->required_rsa_size = -1;
1.389 djm 179: options->channel_timeouts = NULL;
180: options->num_channel_timeouts = 0;
1.390 djm 181: options->unused_connection_timeout = -1;
1.1 deraadt 182: }
183:
1.257 djm 184: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
185: static int
186: option_clear_or_none(const char *o)
187: {
188: return o == NULL || strcasecmp(o, "none") == 0;
189: }
190:
1.282 djm 191: static void
192: assemble_algorithms(ServerOptions *o)
193: {
1.341 djm 194: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 195: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 196: int r;
1.335 djm 197:
198: all_cipher = cipher_alg_list(',', 0);
199: all_mac = mac_alg_list(',');
200: all_kex = kex_alg_list(',');
201: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 202: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 203: /* remove unsupported algos from default lists */
1.367 djm 204: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
205: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
206: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
207: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
208: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 209: #define ASSEMBLE(what, defaults, all) \
210: do { \
211: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 212: fatal_fr(r, "%s", #what); \
1.340 djm 213: } while (0)
1.358 dtucker 214: ASSEMBLE(ciphers, def_cipher, all_cipher);
215: ASSEMBLE(macs, def_mac, all_mac);
216: ASSEMBLE(kex_algorithms, def_kex, all_kex);
217: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 218: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 219: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 220: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 221: #undef ASSEMBLE
1.335 djm 222: free(all_cipher);
223: free(all_mac);
224: free(all_kex);
225: free(all_key);
1.341 djm 226: free(all_sig);
1.358 dtucker 227: free(def_cipher);
228: free(def_mac);
229: free(def_kex);
230: free(def_key);
231: free(def_sig);
1.282 djm 232: }
233:
1.314 djm 234: void
235: servconf_add_hostkey(const char *file, const int line,
1.344 djm 236: ServerOptions *options, const char *path, int userprovided)
1.314 djm 237: {
238: char *apath = derelativise_path(path);
239:
1.376 markus 240: opt_array_append2(file, line, "HostKey",
1.344 djm 241: &options->host_key_files, &options->host_key_file_userprovided,
242: &options->num_host_key_files, apath, userprovided);
1.314 djm 243: free(apath);
244: }
245:
246: void
247: servconf_add_hostcert(const char *file, const int line,
248: ServerOptions *options, const char *path)
249: {
250: char *apath = derelativise_path(path);
251:
1.376 markus 252: opt_array_append(file, line, "HostCertificate",
1.314 djm 253: &options->host_cert_files, &options->num_host_cert_files, apath);
254: free(apath);
255: }
256:
1.34 markus 257: void
1.25 markus 258: fill_default_server_options(ServerOptions *options)
1.1 deraadt 259: {
1.314 djm 260: u_int i;
1.257 djm 261:
1.54 markus 262: if (options->num_host_key_files == 0) {
1.293 naddy 263: /* fill default hostkeys */
1.314 djm 264: servconf_add_hostkey("[default]", 0, options,
1.344 djm 265: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 266: servconf_add_hostkey("[default]", 0, options,
1.344 djm 267: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 268: servconf_add_hostkey("[default]", 0, options,
1.344 djm 269: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 270: #ifdef WITH_XMSS
1.325 markus 271: servconf_add_hostkey("[default]", 0, options,
1.344 djm 272: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 273: #endif /* WITH_XMSS */
1.54 markus 274: }
1.203 djm 275: /* No certificates by default */
1.29 markus 276: if (options->num_ports == 0)
277: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 278: if (options->address_family == -1)
279: options->address_family = AF_UNSPEC;
1.29 markus 280: if (options->listen_addrs == NULL)
1.315 djm 281: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 282: if (options->pid_file == NULL)
1.257 djm 283: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 284: if (options->moduli_file == NULL)
285: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 286: if (options->login_grace_time == -1)
1.115 stevesk 287: options->login_grace_time = 120;
1.67 markus 288: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 289: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 290: if (options->ignore_rhosts == -1)
1.30 markus 291: options->ignore_rhosts = 1;
1.25 markus 292: if (options->ignore_user_known_hosts == -1)
293: options->ignore_user_known_hosts = 0;
294: if (options->print_motd == -1)
295: options->print_motd = 1;
1.72 stevesk 296: if (options->print_lastlog == -1)
297: options->print_lastlog = 1;
1.25 markus 298: if (options->x11_forwarding == -1)
1.30 markus 299: options->x11_forwarding = 0;
1.25 markus 300: if (options->x11_display_offset == -1)
1.30 markus 301: options->x11_display_offset = 10;
1.99 stevesk 302: if (options->x11_use_localhost == -1)
303: options->x11_use_localhost = 1;
1.42 markus 304: if (options->xauth_location == NULL)
1.257 djm 305: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 306: if (options->permit_tty == -1)
307: options->permit_tty = 1;
1.250 djm 308: if (options->permit_user_rc == -1)
309: options->permit_user_rc = 1;
1.25 markus 310: if (options->strict_modes == -1)
311: options->strict_modes = 1;
1.129 markus 312: if (options->tcp_keep_alive == -1)
313: options->tcp_keep_alive = 1;
1.101 markus 314: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 315: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 316: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 317: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 318: if (options->hostbased_authentication == -1)
319: options->hostbased_authentication = 0;
320: if (options->hostbased_uses_name_from_packet_only == -1)
321: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 322: if (options->pubkey_authentication == -1)
323: options->pubkey_authentication = 1;
1.354 djm 324: if (options->pubkey_auth_options == -1)
325: options->pubkey_auth_options = 0;
1.25 markus 326: if (options->kerberos_authentication == -1)
1.107 markus 327: options->kerberos_authentication = 0;
1.25 markus 328: if (options->kerberos_or_local_passwd == -1)
329: options->kerberos_or_local_passwd = 1;
330: if (options->kerberos_ticket_cleanup == -1)
331: options->kerberos_ticket_cleanup = 1;
1.130 jakob 332: if (options->kerberos_get_afs_token == -1)
333: options->kerberos_get_afs_token = 0;
1.125 markus 334: if (options->gss_authentication == -1)
335: options->gss_authentication = 0;
336: if (options->gss_cleanup_creds == -1)
337: options->gss_cleanup_creds = 1;
1.271 djm 338: if (options->gss_strict_acceptor == -1)
1.302 djm 339: options->gss_strict_acceptor = 1;
1.25 markus 340: if (options->password_authentication == -1)
341: options->password_authentication = 1;
1.52 markus 342: if (options->kbd_interactive_authentication == -1)
1.381 dtucker 343: options->kbd_interactive_authentication = 1;
1.25 markus 344: if (options->permit_empty_passwd == -1)
1.30 markus 345: options->permit_empty_passwd = 0;
1.334 djm 346: if (options->permit_user_env == -1) {
1.113 markus 347: options->permit_user_env = 0;
1.367 djm 348: options->permit_user_env_allowlist = NULL;
1.334 djm 349: }
1.111 markus 350: if (options->compression == -1)
1.359 dtucker 351: #ifdef WITH_ZLIB
1.337 sf 352: options->compression = COMP_DELAYED;
1.359 dtucker 353: #else
354: options->compression = COMP_NONE;
355: #endif
356:
1.235 dtucker 357: if (options->rekey_limit == -1)
358: options->rekey_limit = 0;
359: if (options->rekey_interval == -1)
360: options->rekey_interval = 0;
1.53 markus 361: if (options->allow_tcp_forwarding == -1)
1.233 djm 362: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 363: if (options->allow_streamlocal_forwarding == -1)
364: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 365: if (options->allow_agent_forwarding == -1)
366: options->allow_agent_forwarding = 1;
1.251 millert 367: if (options->fwd_opts.gateway_ports == -1)
368: options->fwd_opts.gateway_ports = 0;
1.46 markus 369: if (options->max_startups == -1)
1.234 dtucker 370: options->max_startups = 100;
1.50 markus 371: if (options->max_startups_rate == -1)
1.234 dtucker 372: options->max_startups_rate = 30; /* 30% */
1.50 markus 373: if (options->max_startups_begin == -1)
1.234 dtucker 374: options->max_startups_begin = 10;
1.372 dtucker 375: if (options->per_source_max_startups == -1)
376: options->per_source_max_startups = INT_MAX;
377: if (options->per_source_masklen_ipv4 == -1)
378: options->per_source_masklen_ipv4 = 32;
379: if (options->per_source_masklen_ipv6 == -1)
380: options->per_source_masklen_ipv6 = 128;
1.133 dtucker 381: if (options->max_authtries == -1)
382: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 383: if (options->max_sessions == -1)
384: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 385: if (options->use_dns == -1)
1.260 deraadt 386: options->use_dns = 0;
1.77 beck 387: if (options->client_alive_interval == -1)
1.95 deraadt 388: options->client_alive_interval = 0;
1.77 beck 389: if (options->client_alive_count_max == -1)
390: options->client_alive_count_max = 3;
1.219 djm 391: if (options->num_authkeys_files == 0) {
1.376 markus 392: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 393: &options->authorized_keys_files,
394: &options->num_authkeys_files,
395: _PATH_SSH_USER_PERMITTED_KEYS);
1.376 markus 396: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 397: &options->authorized_keys_files,
398: &options->num_authkeys_files,
399: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 400: }
1.145 reyk 401: if (options->permit_tun == -1)
1.146 reyk 402: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 403: if (options->ip_qos_interactive == -1)
1.327 job 404: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 405: if (options->ip_qos_bulk == -1)
1.327 job 406: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 407: if (options->version_addendum == NULL)
408: options->version_addendum = xstrdup("");
1.251 millert 409: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
410: options->fwd_opts.streamlocal_bind_mask = 0177;
411: if (options->fwd_opts.streamlocal_bind_unlink == -1)
412: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 413: if (options->fingerprint_hash == -1)
414: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 415: if (options->disable_forwarding == -1)
416: options->disable_forwarding = 0;
1.309 djm 417: if (options->expose_userauth_info == -1)
418: options->expose_userauth_info = 0;
1.355 djm 419: if (options->sk_provider == NULL)
420: options->sk_provider = xstrdup("internal");
1.386 djm 421: if (options->required_rsa_size == -1)
422: options->required_rsa_size = SSH_RSA_MINIMUM_MODULUS_SIZE;
1.390 djm 423: if (options->unused_connection_timeout == -1)
424: options->unused_connection_timeout = 0;
1.277 djm 425:
1.282 djm 426: assemble_algorithms(options);
1.277 djm 427:
1.285 djm 428: /* Turn privilege separation and sandboxing on by default */
1.102 provos 429: if (use_privsep == -1)
1.285 djm 430: use_privsep = PRIVSEP_ON;
1.257 djm 431:
432: #define CLEAR_ON_NONE(v) \
433: do { \
434: if (option_clear_or_none(v)) { \
435: free(v); \
436: v = NULL; \
437: } \
438: } while(0)
1.389 djm 439: #define CLEAR_ON_NONE_ARRAY(v, nv, none) \
440: do { \
441: if (options->nv == 1 && \
442: strcasecmp(options->v[0], none) == 0) { \
443: free(options->v[0]); \
444: free(options->v); \
445: options->v = NULL; \
446: options->nv = 0; \
447: } \
448: } while (0)
1.257 djm 449: CLEAR_ON_NONE(options->pid_file);
450: CLEAR_ON_NONE(options->xauth_location);
451: CLEAR_ON_NONE(options->banner);
452: CLEAR_ON_NONE(options->trusted_user_ca_keys);
453: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 454: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 455: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 456: CLEAR_ON_NONE(options->adm_forced_command);
457: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 458: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 459: CLEAR_ON_NONE(options->host_key_agent);
1.389 djm 460:
1.257 djm 461: for (i = 0; i < options->num_host_key_files; i++)
462: CLEAR_ON_NONE(options->host_key_files[i]);
463: for (i = 0; i < options->num_host_cert_files; i++)
464: CLEAR_ON_NONE(options->host_cert_files[i]);
1.389 djm 465:
466: CLEAR_ON_NONE_ARRAY(channel_timeouts, num_channel_timeouts, "none");
467: CLEAR_ON_NONE_ARRAY(auth_methods, num_auth_methods, "any");
1.257 djm 468: #undef CLEAR_ON_NONE
1.389 djm 469: #undef CLEAR_ON_NONE_ARRAY
1.1 deraadt 470: }
471:
472: /* Keyword tokens. */
1.25 markus 473: typedef enum {
474: sBadOption, /* == unknown option */
1.293 naddy 475: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 476: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 477: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.382 millert 478: sKerberosGetAFSToken, sPasswordAuthentication,
479: sKbdInteractiveAuthentication, sListenAddress, sAddressFamily,
1.72 stevesk 480: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 481: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 482: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 483: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 484: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 485: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 486: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 487: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 488: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 489: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 490: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 491: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 492: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 493: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 494: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 495: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 496: sHostCertificate, sInclude,
1.208 djm 497: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 498: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 499: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 500: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 501: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 502: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 503: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 504: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.390 djm 505: sRequiredRSASize, sChannelTimeout, sUnusedConnectionTimeout,
1.295 djm 506: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 507: } ServerOpCodes;
508:
1.360 djm 509: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
510: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
511: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
512: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 513: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 514:
1.1 deraadt 515: /* Textual representation of the tokens. */
1.25 markus 516: static struct {
517: const char *name;
518: ServerOpCodes opcode;
1.153 dtucker 519: u_int flags;
1.25 markus 520: } keywords[] = {
1.153 dtucker 521: { "port", sPort, SSHCFG_GLOBAL },
522: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
523: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 524: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 525: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 526: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 527: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 528: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 529: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 530: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 531: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 532: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 533: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 534: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 535: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 536: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 537: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 538: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 539: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 540: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 541: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 542: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 543: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 544: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 545: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 546: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 547: #ifdef KRB5
1.168 dtucker 548: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 549: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
550: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
551: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 552: #else
1.168 dtucker 553: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 554: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
555: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
556: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 557: #endif
1.153 dtucker 558: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
559: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 560: #ifdef GSSAPI
1.168 dtucker 561: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 562: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 563: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 564: #else
1.168 dtucker 565: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 566: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 567: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 568: #endif
1.168 dtucker 569: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
570: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.381 dtucker 571: { "challengeresponseauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
572: { "skeyauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
1.153 dtucker 573: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
574: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
575: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
576: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
577: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 578: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 579: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 580: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
581: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
582: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 583: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
584: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 585: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 586: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 587: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 588: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 589: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 590: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
591: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
592: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 593: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 594: { "allowusers", sAllowUsers, SSHCFG_ALL },
595: { "denyusers", sDenyUsers, SSHCFG_ALL },
596: { "allowgroups", sAllowGroups, SSHCFG_ALL },
597: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 598: { "ciphers", sCiphers, SSHCFG_GLOBAL },
599: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 600: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 601: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
1.401 djm 602: { "subsystem", sSubsystem, SSHCFG_ALL },
1.153 dtucker 603: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 604: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
605: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 606: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 607: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 608: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 609: { "usedns", sUseDNS, SSHCFG_GLOBAL },
610: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
611: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 612: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
613: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 614: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 615: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 616: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 617: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 618: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 619: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 620: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 621: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 622: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 623: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 624: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 625: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 626: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 627: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 628: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
629: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 630: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 631: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 632: { "include", sInclude, SSHCFG_ALL },
1.213 djm 633: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 634: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
635: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 636: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
637: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 638: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 639: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 640: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
641: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
642: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 643: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 644: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 645: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 646: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 647: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 648: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.386 djm 649: { "requiredrsasize", sRequiredRSASize, SSHCFG_ALL },
1.389 djm 650: { "channeltimeout", sChannelTimeout, SSHCFG_ALL },
1.390 djm 651: { "unusedconnectiontimeout", sUnusedConnectionTimeout, SSHCFG_ALL },
1.153 dtucker 652: { NULL, sBadOption, 0 }
1.1 deraadt 653: };
654:
1.182 dtucker 655: static struct {
656: int val;
657: char *text;
658: } tunmode_desc[] = {
659: { SSH_TUNMODE_NO, "no" },
660: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
661: { SSH_TUNMODE_ETHERNET, "ethernet" },
662: { SSH_TUNMODE_YES, "yes" },
663: { -1, NULL }
664: };
665:
1.329 djm 666: /* Returns an opcode name from its number */
667:
668: static const char *
669: lookup_opcode_name(ServerOpCodes code)
670: {
671: u_int i;
672:
673: for (i = 0; keywords[i].name != NULL; i++)
674: if (keywords[i].opcode == code)
675: return(keywords[i].name);
676: return "UNKNOWN";
677: }
678:
679:
1.27 markus 680: /*
1.73 stevesk 681: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 682: */
1.1 deraadt 683:
1.34 markus 684: static ServerOpCodes
1.25 markus 685: parse_token(const char *cp, const char *filename,
1.153 dtucker 686: int linenum, u_int *flags)
1.1 deraadt 687: {
1.55 markus 688: u_int i;
1.1 deraadt 689:
1.25 markus 690: for (i = 0; keywords[i].name; i++)
1.153 dtucker 691: if (strcasecmp(cp, keywords[i].name) == 0) {
692: *flags = keywords[i].flags;
1.25 markus 693: return keywords[i].opcode;
1.153 dtucker 694: }
1.25 markus 695:
1.78 stevesk 696: error("%s: line %d: Bad configuration option: %s",
697: filename, linenum, cp);
1.25 markus 698: return sBadOption;
1.1 deraadt 699: }
700:
1.202 djm 701: char *
702: derelativise_path(const char *path)
703: {
1.259 deraadt 704: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 705:
1.257 djm 706: if (strcasecmp(path, "none") == 0)
707: return xstrdup("none");
1.202 djm 708: expanded = tilde_expand_filename(path, getuid());
1.343 djm 709: if (path_absolute(expanded))
1.202 djm 710: return expanded;
1.207 djm 711: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 712: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 713: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 714: free(expanded);
1.202 djm 715: return ret;
716: }
717:
1.84 itojun 718: static void
1.315 djm 719: add_listen_addr(ServerOptions *options, const char *addr,
720: const char *rdomain, int port)
1.74 stevesk 721: {
1.142 djm 722: u_int i;
1.74 stevesk 723:
1.315 djm 724: if (port > 0)
725: add_one_listen_addr(options, addr, rdomain, port);
726: else {
727: for (i = 0; i < options->num_ports; i++) {
728: add_one_listen_addr(options, addr, rdomain,
729: options->ports[i]);
730: }
731: }
1.74 stevesk 732: }
733:
1.84 itojun 734: static void
1.315 djm 735: add_one_listen_addr(ServerOptions *options, const char *addr,
736: const char *rdomain, int port)
1.29 markus 737: {
738: struct addrinfo hints, *ai, *aitop;
739: char strport[NI_MAXSERV];
740: int gaierr;
1.315 djm 741: u_int i;
742:
743: /* Find listen_addrs entry for this rdomain */
744: for (i = 0; i < options->num_listen_addrs; i++) {
745: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
746: break;
747: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
748: continue;
749: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
750: break;
751: }
752: if (i >= options->num_listen_addrs) {
753: /* No entry for this rdomain; allocate one */
754: if (i >= INT_MAX)
1.371 djm 755: fatal_f("too many listen addresses");
1.315 djm 756: options->listen_addrs = xrecallocarray(options->listen_addrs,
757: options->num_listen_addrs, options->num_listen_addrs + 1,
758: sizeof(*options->listen_addrs));
759: i = options->num_listen_addrs++;
760: if (rdomain != NULL)
761: options->listen_addrs[i].rdomain = xstrdup(rdomain);
762: }
763: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 764:
1.74 stevesk 765: memset(&hints, 0, sizeof(hints));
1.138 djm 766: hints.ai_family = options->address_family;
1.74 stevesk 767: hints.ai_socktype = SOCK_STREAM;
768: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 769: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 770: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
771: fatal("bad addr or host: %s (%s)",
772: addr ? addr : "<NULL>",
1.173 dtucker 773: ssh_gai_strerror(gaierr));
1.74 stevesk 774: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
775: ;
1.315 djm 776: ai->ai_next = options->listen_addrs[i].addrs;
777: options->listen_addrs[i].addrs = aitop;
778: }
779:
780: /* Returns nonzero if the routing domain name is valid */
781: static int
782: valid_rdomain(const char *name)
783: {
784: const char *errstr;
785: long long num;
786: struct rt_tableinfo info;
787: int mib[6];
788: size_t miblen = sizeof(mib);
789:
790: if (name == NULL)
791: return 1;
792:
793: num = strtonum(name, 0, 255, &errstr);
794: if (errstr != NULL)
795: return 0;
796:
797: /* Check whether the table actually exists */
798: memset(mib, 0, sizeof(mib));
799: mib[0] = CTL_NET;
800: mib[1] = PF_ROUTE;
801: mib[4] = NET_RT_TABLE;
802: mib[5] = (int)num;
803: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
804: return 0;
805:
806: return 1;
1.29 markus 807: }
808:
1.266 dtucker 809: /*
810: * Queue a ListenAddress to be processed once we have all of the Ports
811: * and AddressFamily options.
812: */
813: static void
1.315 djm 814: queue_listen_addr(ServerOptions *options, const char *addr,
815: const char *rdomain, int port)
1.266 dtucker 816: {
1.315 djm 817: struct queued_listenaddr *qla;
818:
819: options->queued_listen_addrs = xrecallocarray(
820: options->queued_listen_addrs,
821: options->num_queued_listens, options->num_queued_listens + 1,
822: sizeof(*options->queued_listen_addrs));
823: qla = &options->queued_listen_addrs[options->num_queued_listens++];
824: qla->addr = xstrdup(addr);
825: qla->port = port;
826: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 827: }
828:
829: /*
830: * Process queued (text) ListenAddress entries.
831: */
832: static void
833: process_queued_listen_addrs(ServerOptions *options)
834: {
835: u_int i;
1.315 djm 836: struct queued_listenaddr *qla;
1.266 dtucker 837:
838: if (options->num_ports == 0)
839: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
840: if (options->address_family == -1)
841: options->address_family = AF_UNSPEC;
842:
843: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 844: qla = &options->queued_listen_addrs[i];
845: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
846: free(qla->addr);
847: free(qla->rdomain);
1.266 dtucker 848: }
849: free(options->queued_listen_addrs);
850: options->queued_listen_addrs = NULL;
851: options->num_queued_listens = 0;
852: }
853:
1.310 djm 854: /*
1.329 djm 855: * Inform channels layer of permitopen options for a single forwarding
856: * direction (local/remote).
1.310 djm 857: */
1.329 djm 858: static void
859: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
860: char **opens, u_int num_opens)
1.310 djm 861: {
862: u_int i;
863: int port;
1.383 dtucker 864: char *host, *arg, *oarg;
1.329 djm 865: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
866: const char *what = lookup_opcode_name(opcode);
1.310 djm 867:
1.329 djm 868: channel_clear_permission(ssh, FORWARD_ADM, where);
869: if (num_opens == 0)
1.310 djm 870: return; /* permit any */
871:
872: /* handle keywords: "any" / "none" */
1.329 djm 873: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 874: return;
1.329 djm 875: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
876: channel_disable_admin(ssh, where);
1.310 djm 877: return;
878: }
879: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 880: for (i = 0; i < num_opens; i++) {
881: oarg = arg = xstrdup(opens[i]);
1.383 dtucker 882: host = hpdelim(&arg);
883: if (host == NULL)
1.371 djm 884: fatal_f("missing host in %s", what);
1.310 djm 885: host = cleanhostname(host);
886: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.371 djm 887: fatal_f("bad port number in %s", what);
1.310 djm 888: /* Send it to channels layer */
1.329 djm 889: channel_add_permission(ssh, FORWARD_ADM,
890: where, host, port);
1.310 djm 891: free(oarg);
892: }
893: }
894:
1.329 djm 895: /*
896: * Inform channels layer of permitopen options from configuration.
897: */
898: void
899: process_permitopen(struct ssh *ssh, ServerOptions *options)
900: {
901: process_permitopen_list(ssh, sPermitOpen,
902: options->permitted_opens, options->num_permitted_opens);
1.330 djm 903: process_permitopen_list(ssh, sPermitListen,
904: options->permitted_listens,
905: options->num_permitted_listens);
1.329 djm 906: }
907:
1.389 djm 908: void
909: process_channel_timeouts(struct ssh *ssh, ServerOptions *options)
910: {
1.394 millert 911: int secs;
912: u_int i;
1.389 djm 913: char *type;
914:
915: debug3_f("setting %u timeouts", options->num_channel_timeouts);
916: channel_clear_timeouts(ssh);
917: for (i = 0; i < options->num_channel_timeouts; i++) {
1.403 djm 918: if (parse_pattern_interval(options->channel_timeouts[i],
1.389 djm 919: &type, &secs) != 0) {
920: fatal_f("internal error: bad timeout %s",
921: options->channel_timeouts[i]);
922: }
923: channel_add_timeout(ssh, type, secs);
924: free(type);
925: }
926: }
927:
1.226 dtucker 928: struct connection_info *
1.346 djm 929: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 930: {
931: static struct connection_info ci;
932:
1.346 djm 933: if (ssh == NULL || !populate)
1.226 dtucker 934: return &ci;
1.286 djm 935: ci.host = auth_get_canonical_hostname(ssh, use_dns);
936: ci.address = ssh_remote_ipaddr(ssh);
937: ci.laddress = ssh_local_ipaddr(ssh);
938: ci.lport = ssh_local_port(ssh);
1.317 djm 939: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 940: return &ci;
941: }
942:
1.153 dtucker 943: /*
944: * The strategy for the Match blocks is that the config file is parsed twice.
945: *
946: * The first time is at startup. activep is initialized to 1 and the
947: * directives in the global context are processed and acted on. Hitting a
948: * Match directive unsets activep and the directives inside the block are
949: * checked for syntax only.
950: *
951: * The second time is after a connection has been established but before
952: * authentication. activep is initialized to 2 and global config directives
953: * are ignored since they have already been processed. If the criteria in a
954: * Match block is met, activep is set and the subsequent directives
955: * processed and actioned until EOF or another Match block unsets it. Any
956: * options set are copied into the main server config.
957: *
958: * Potential additions/improvements:
1.295 djm 959: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 960: *
961: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
962: * Match Address 192.168.0.*
963: * Tag trusted
964: * Match Group wheel
965: * Tag trusted
966: * Match Tag trusted
967: * AllowTcpForwarding yes
968: * GatewayPorts clientspecified
969: * [...]
970: *
971: * - Add a PermittedChannelRequests directive
972: * Match Group shell
973: * PermittedChannelRequests session,forwarded-tcpip
974: */
975:
976: static int
1.165 dtucker 977: match_cfg_line_group(const char *grps, int line, const char *user)
978: {
979: int result = 0;
980: struct passwd *pw;
981:
982: if (user == NULL)
983: goto out;
984:
985: if ((pw = getpwnam(user)) == NULL) {
986: debug("Can't match group at line %d because user %.100s does "
987: "not exist", line, user);
988: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
989: debug("Can't Match group because user %.100s not in any group "
990: "at line %d", user, line);
1.186 djm 991: } else if (ga_match_pattern_list(grps) != 1) {
992: debug("user %.100s does not match group list %.100s at line %d",
993: user, grps, line);
1.165 dtucker 994: } else {
1.186 djm 995: debug("user %.100s matched group list %.100s at line %d", user,
996: grps, line);
1.165 dtucker 997: result = 1;
998: }
999: out:
1000: ga_free();
1001: return result;
1002: }
1003:
1.319 dtucker 1004: static void
1005: match_test_missing_fatal(const char *criteria, const char *attrib)
1006: {
1007: fatal("'Match %s' in configuration but '%s' not in connection "
1008: "test specification.", criteria, attrib);
1009: }
1010:
1.226 dtucker 1011: /*
1.230 dtucker 1012: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 1013: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 1014: * not match.
1.226 dtucker 1015: */
1.165 dtucker 1016: static int
1.226 dtucker 1017: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 1018: {
1.243 dtucker 1019: int result = 1, attributes = 0, port;
1.153 dtucker 1020: char *arg, *attrib, *cp = *condition;
1021:
1.226 dtucker 1022: if (ci == NULL)
1.153 dtucker 1023: debug3("checking syntax for 'Match %s'", cp);
1024: else
1.226 dtucker 1025: debug3("checking match for '%s' user %s host %s addr %s "
1026: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
1027: ci->host ? ci->host : "(null)",
1028: ci->address ? ci->address : "(null)",
1029: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 1030:
1031: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 1032: /* Terminate on comment */
1033: if (*attrib == '#') {
1034: cp = NULL; /* mark all arguments consumed */
1035: break;
1036: }
1037: arg = NULL;
1.243 dtucker 1038: attributes++;
1.380 djm 1039: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1040: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 1041: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
1042: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1043: error("'all' cannot be combined with other "
1044: "Match attributes");
1045: return -1;
1046: }
1.380 djm 1047: if (arg != NULL && *arg == '#')
1048: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1049: *condition = cp;
1050: return 1;
1051: }
1.380 djm 1052: /* All other criteria require an argument */
1053: if ((arg = strdelim(&cp)) == NULL ||
1054: *arg == '\0' || *arg == '#') {
1.153 dtucker 1055: error("Missing Match criteria for %s", attrib);
1056: return -1;
1057: }
1058: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1059: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1060: result = 0;
1061: continue;
1062: }
1.319 dtucker 1063: if (ci->user == NULL)
1064: match_test_missing_fatal("User", "user");
1.349 dtucker 1065: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1066: result = 0;
1067: else
1068: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1069: "line %d", ci->user, arg, line);
1.165 dtucker 1070: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1071: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1072: result = 0;
1073: continue;
1074: }
1.319 dtucker 1075: if (ci->user == NULL)
1076: match_test_missing_fatal("Group", "user");
1.226 dtucker 1077: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1078: case -1:
1079: return -1;
1080: case 0:
1081: result = 0;
1082: }
1.153 dtucker 1083: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1084: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1085: result = 0;
1086: continue;
1087: }
1.319 dtucker 1088: if (ci->host == NULL)
1089: match_test_missing_fatal("Host", "host");
1.269 djm 1090: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1091: result = 0;
1092: else
1093: debug("connection from %.100s matched 'Host "
1.226 dtucker 1094: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1095: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1096: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1097: if (addr_match_list(NULL, arg) != 0)
1098: fatal("Invalid Match address argument "
1099: "'%s' at line %d", arg, line);
1.226 dtucker 1100: result = 0;
1101: continue;
1102: }
1.319 dtucker 1103: if (ci->address == NULL)
1104: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1105: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1106: case 1:
1107: debug("connection from %.100s matched 'Address "
1.226 dtucker 1108: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1109: break;
1110: case 0:
1.183 djm 1111: case -1:
1.153 dtucker 1112: result = 0;
1.181 djm 1113: break;
1.183 djm 1114: case -2:
1.181 djm 1115: return -1;
1.153 dtucker 1116: }
1.226 dtucker 1117: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1118: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1119: if (addr_match_list(NULL, arg) != 0)
1120: fatal("Invalid Match localaddress "
1121: "argument '%s' at line %d", arg,
1122: line);
1.226 dtucker 1123: result = 0;
1124: continue;
1125: }
1.319 dtucker 1126: if (ci->laddress == NULL)
1127: match_test_missing_fatal("LocalAddress",
1128: "laddr");
1.226 dtucker 1129: switch (addr_match_list(ci->laddress, arg)) {
1130: case 1:
1131: debug("connection from %.100s matched "
1132: "'LocalAddress %.100s' at line %d",
1133: ci->laddress, arg, line);
1134: break;
1135: case 0:
1136: case -1:
1137: result = 0;
1138: break;
1139: case -2:
1140: return -1;
1141: }
1142: } else if (strcasecmp(attrib, "localport") == 0) {
1143: if ((port = a2port(arg)) == -1) {
1144: error("Invalid LocalPort '%s' on Match line",
1145: arg);
1146: return -1;
1147: }
1.351 dtucker 1148: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1149: result = 0;
1150: continue;
1151: }
1.319 dtucker 1152: if (ci->lport == 0)
1153: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1154: /* TODO support port lists */
1155: if (port == ci->lport)
1156: debug("connection from %.100s matched "
1157: "'LocalPort %d' at line %d",
1158: ci->laddress, port, line);
1159: else
1160: result = 0;
1.317 djm 1161: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1162: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1163: result = 0;
1164: continue;
1165: }
1.351 dtucker 1166: if (ci->rdomain == NULL)
1167: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1168: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1169: result = 0;
1170: else
1171: debug("user %.100s matched 'RDomain %.100s' at "
1172: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1173: } else {
1174: error("Unsupported Match attribute %s", attrib);
1175: return -1;
1176: }
1.243 dtucker 1177: }
1178: if (attributes == 0) {
1179: error("One or more attributes required for Match");
1180: return -1;
1.153 dtucker 1181: }
1.226 dtucker 1182: if (ci != NULL)
1.153 dtucker 1183: debug3("match %sfound", result ? "" : "not ");
1184: *condition = cp;
1185: return result;
1186: }
1187:
1.158 dtucker 1188: #define WHITESPACE " \t\r\n"
1189:
1.220 djm 1190: /* Multistate option parsing */
1191: struct multistate {
1192: char *key;
1193: int value;
1194: };
1.320 djm 1195: static const struct multistate multistate_flag[] = {
1196: { "yes", 1 },
1197: { "no", 0 },
1198: { NULL, -1 }
1199: };
1.363 djm 1200: static const struct multistate multistate_ignore_rhosts[] = {
1201: { "yes", IGNORE_RHOSTS_YES },
1202: { "no", IGNORE_RHOSTS_NO },
1203: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1204: { NULL, -1 }
1205: };
1.220 djm 1206: static const struct multistate multistate_addressfamily[] = {
1207: { "inet", AF_INET },
1208: { "inet6", AF_INET6 },
1209: { "any", AF_UNSPEC },
1210: { NULL, -1 }
1211: };
1212: static const struct multistate multistate_permitrootlogin[] = {
1213: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1214: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1215: { "forced-commands-only", PERMIT_FORCED_ONLY },
1216: { "yes", PERMIT_YES },
1217: { "no", PERMIT_NO },
1218: { NULL, -1 }
1219: };
1220: static const struct multistate multistate_compression[] = {
1.359 dtucker 1221: #ifdef WITH_ZLIB
1.337 sf 1222: { "yes", COMP_DELAYED },
1223: { "delayed", COMP_DELAYED },
1.359 dtucker 1224: #endif
1.220 djm 1225: { "no", COMP_NONE },
1226: { NULL, -1 }
1227: };
1228: static const struct multistate multistate_gatewayports[] = {
1229: { "clientspecified", 2 },
1230: { "yes", 1 },
1231: { "no", 0 },
1.222 djm 1232: { NULL, -1 }
1233: };
1.233 djm 1234: static const struct multistate multistate_tcpfwd[] = {
1235: { "yes", FORWARD_ALLOW },
1236: { "all", FORWARD_ALLOW },
1237: { "no", FORWARD_DENY },
1238: { "remote", FORWARD_REMOTE },
1239: { "local", FORWARD_LOCAL },
1240: { NULL, -1 }
1241: };
1.220 djm 1242:
1.360 djm 1243: static int
1244: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1245: const char *filename, int linenum, int *activep,
1.365 djm 1246: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1247: struct include_list *includes)
1.1 deraadt 1248: {
1.383 dtucker 1249: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.405 ! djm 1250: int cmdline = 0, *intptr, value, value2, n, port, oactive, r;
! 1251: int ca_only = 0, found = 0;
1.174 dtucker 1252: SyslogFacility *log_facility_ptr;
1253: LogLevel *log_level_ptr;
1.25 markus 1254: ServerOpCodes opcode;
1.405 ! djm 1255: u_int i, *uintptr, flags = 0;
1.151 djm 1256: size_t len;
1.237 dtucker 1257: long long val64;
1.220 djm 1258: const struct multistate *multistate_ptr;
1.322 dtucker 1259: const char *errstr;
1.360 djm 1260: struct include_item *item;
1261: glob_t gbuf;
1.380 djm 1262: char **oav = NULL, **av;
1263: int oac = 0, ac;
1264: int ret = -1;
1.405 ! djm 1265: char **strs = NULL; /* string array arguments; freed implicitly */
! 1266: u_int nstrs = 0;
1.303 djm 1267:
1268: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1269: if ((len = strlen(line)) == 0)
1270: return 0;
1271: for (len--; len > 0; len--) {
1272: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1273: break;
1274: line[len] = '\0';
1275: }
1.25 markus 1276:
1.380 djm 1277: str = line;
1278: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1279: return 0;
1.94 markus 1280: /* Ignore leading whitespace */
1.380 djm 1281: if (*keyword == '\0')
1282: keyword = strdelim(&str);
1283: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1284: return 0;
1.380 djm 1285: if (str == NULL || *str == '\0') {
1286: error("%s line %d: no argument after keyword \"%s\"",
1287: filename, linenum, keyword);
1288: return -1;
1289: }
1.94 markus 1290: intptr = NULL;
1291: charptr = NULL;
1.380 djm 1292: opcode = parse_token(keyword, filename, linenum, &flags);
1293:
1294: if (argv_split(str, &oac, &oav, 1) != 0) {
1295: error("%s line %d: invalid quotes", filename, linenum);
1296: return -1;
1297: }
1298: ac = oac;
1299: av = oav;
1.153 dtucker 1300:
1301: if (activep == NULL) { /* We are processing a command line directive */
1302: cmdline = 1;
1303: activep = &cmdline;
1304: }
1.360 djm 1305: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1306: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1307: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1308: if (connectinfo == NULL) {
1.153 dtucker 1309: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1310: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1311: } else { /* this is a directive we have already processed */
1.380 djm 1312: ret = 0;
1313: goto out;
1.153 dtucker 1314: }
1315: }
1316:
1.94 markus 1317: switch (opcode) {
1318: case sBadOption:
1.380 djm 1319: goto out;
1.94 markus 1320: case sPort:
1321: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1322: if (options->ports_from_cmdline) {
1323: argv_consume(&ac);
1324: break;
1325: }
1.94 markus 1326: if (options->num_ports >= MAX_PORTS)
1327: fatal("%s line %d: too many ports.",
1328: filename, linenum);
1.380 djm 1329: arg = argv_next(&ac, &av);
1.94 markus 1330: if (!arg || *arg == '\0')
1331: fatal("%s line %d: missing port number.",
1332: filename, linenum);
1333: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1334: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1335: fatal("%s line %d: Badly formatted port number.",
1336: filename, linenum);
1337: break;
1.29 markus 1338:
1.94 markus 1339: case sLoginGraceTime:
1340: intptr = &options->login_grace_time;
1.180 djm 1341: parse_time:
1.380 djm 1342: arg = argv_next(&ac, &av);
1.94 markus 1343: if (!arg || *arg == '\0')
1344: fatal("%s line %d: missing time value.",
1345: filename, linenum);
1346: if ((value = convtime(arg)) == -1)
1347: fatal("%s line %d: invalid time value.",
1348: filename, linenum);
1.268 djm 1349: if (*activep && *intptr == -1)
1.94 markus 1350: *intptr = value;
1351: break;
1352:
1353: case sListenAddress:
1.380 djm 1354: arg = argv_next(&ac, &av);
1.139 djm 1355: if (arg == NULL || *arg == '\0')
1356: fatal("%s line %d: missing address",
1.94 markus 1357: filename, linenum);
1.144 dtucker 1358: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1359: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1360: && strchr(p+1, ':') != NULL) {
1.315 djm 1361: port = 0;
1362: p = arg;
1363: } else {
1.347 dtucker 1364: arg2 = NULL;
1.383 dtucker 1365: p = hpdelim(&arg);
1366: if (p == NULL)
1.315 djm 1367: fatal("%s line %d: bad address:port usage",
1368: filename, linenum);
1369: p = cleanhostname(p);
1370: if (arg == NULL)
1371: port = 0;
1372: else if ((port = a2port(arg)) <= 0)
1373: fatal("%s line %d: bad port number",
1374: filename, linenum);
1375: }
1376: /* Optional routing table */
1377: arg2 = NULL;
1.380 djm 1378: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1379: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1380: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1381: fatal("%s line %d: bad ListenAddress syntax",
1382: filename, linenum);
1383: if (!valid_rdomain(arg2))
1384: fatal("%s line %d: bad routing domain",
1385: filename, linenum);
1.144 dtucker 1386: }
1.315 djm 1387: queue_listen_addr(options, p, arg2, port);
1.25 markus 1388:
1.138 djm 1389: break;
1390:
1391: case sAddressFamily:
1.220 djm 1392: intptr = &options->address_family;
1393: multistate_ptr = multistate_addressfamily;
1394: parse_multistate:
1.380 djm 1395: arg = argv_next(&ac, &av);
1.141 markus 1396: if (!arg || *arg == '\0')
1.220 djm 1397: fatal("%s line %d: missing argument.",
1.141 markus 1398: filename, linenum);
1.220 djm 1399: value = -1;
1400: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1401: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1402: value = multistate_ptr[i].value;
1403: break;
1404: }
1405: }
1406: if (value == -1)
1407: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1408: filename, linenum, arg);
1.220 djm 1409: if (*activep && *intptr == -1)
1.138 djm 1410: *intptr = value;
1.94 markus 1411: break;
1412:
1413: case sHostKeyFile:
1.380 djm 1414: arg = argv_next(&ac, &av);
1.94 markus 1415: if (!arg || *arg == '\0')
1416: fatal("%s line %d: missing file name.",
1417: filename, linenum);
1.344 djm 1418: if (*activep) {
1419: servconf_add_hostkey(filename, linenum,
1420: options, arg, 1);
1421: }
1.94 markus 1422: break;
1.76 stevesk 1423:
1.240 markus 1424: case sHostKeyAgent:
1425: charptr = &options->host_key_agent;
1.380 djm 1426: arg = argv_next(&ac, &av);
1.240 markus 1427: if (!arg || *arg == '\0')
1428: fatal("%s line %d: missing socket name.",
1429: filename, linenum);
1430: if (*activep && *charptr == NULL)
1431: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1432: xstrdup(arg) : derelativise_path(arg);
1433: break;
1434:
1.203 djm 1435: case sHostCertificate:
1.380 djm 1436: arg = argv_next(&ac, &av);
1.314 djm 1437: if (!arg || *arg == '\0')
1438: fatal("%s line %d: missing file name.",
1439: filename, linenum);
1440: if (*activep)
1441: servconf_add_hostcert(filename, linenum, options, arg);
1442: break;
1.203 djm 1443:
1.94 markus 1444: case sPidFile:
1445: charptr = &options->pid_file;
1.314 djm 1446: parse_filename:
1.380 djm 1447: arg = argv_next(&ac, &av);
1.314 djm 1448: if (!arg || *arg == '\0')
1449: fatal("%s line %d: missing file name.",
1450: filename, linenum);
1451: if (*activep && *charptr == NULL) {
1452: *charptr = derelativise_path(arg);
1453: /* increase optional counter */
1454: if (intptr != NULL)
1455: *intptr = *intptr + 1;
1456: }
1457: break;
1.25 markus 1458:
1.378 dtucker 1459: case sModuliFile:
1460: charptr = &options->moduli_file;
1461: goto parse_filename;
1462:
1.94 markus 1463: case sPermitRootLogin:
1464: intptr = &options->permit_root_login;
1.220 djm 1465: multistate_ptr = multistate_permitrootlogin;
1466: goto parse_multistate;
1.36 markus 1467:
1.94 markus 1468: case sIgnoreRhosts:
1469: intptr = &options->ignore_rhosts;
1.363 djm 1470: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1471: goto parse_multistate;
1.94 markus 1472:
1473: case sIgnoreUserKnownHosts:
1474: intptr = &options->ignore_user_known_hosts;
1.363 djm 1475: parse_flag:
1476: multistate_ptr = multistate_flag;
1477: goto parse_multistate;
1.94 markus 1478:
1479: case sHostbasedAuthentication:
1480: intptr = &options->hostbased_authentication;
1481: goto parse_flag;
1482:
1483: case sHostbasedUsesNameFromPacketOnly:
1484: intptr = &options->hostbased_uses_name_from_packet_only;
1485: goto parse_flag;
1486:
1.375 dtucker 1487: case sHostbasedAcceptedAlgorithms:
1488: charptr = &options->hostbased_accepted_algos;
1.395 djm 1489: ca_only = 0;
1.374 dtucker 1490: parse_pubkey_algos:
1.380 djm 1491: arg = argv_next(&ac, &av);
1.258 djm 1492: if (!arg || *arg == '\0')
1493: fatal("%s line %d: Missing argument.",
1494: filename, linenum);
1.304 djm 1495: if (*arg != '-' &&
1.352 naddy 1496: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1.395 djm 1497: arg + 1 : arg, 1, ca_only))
1.258 djm 1498: fatal("%s line %d: Bad key types '%s'.",
1499: filename, linenum, arg ? arg : "<NONE>");
1500: if (*activep && *charptr == NULL)
1501: *charptr = xstrdup(arg);
1502: break;
1503:
1.276 markus 1504: case sHostKeyAlgorithms:
1505: charptr = &options->hostkeyalgorithms;
1.395 djm 1506: ca_only = 0;
1.374 dtucker 1507: goto parse_pubkey_algos;
1.276 markus 1508:
1.341 djm 1509: case sCASignatureAlgorithms:
1510: charptr = &options->ca_sign_algorithms;
1.395 djm 1511: ca_only = 1;
1.374 dtucker 1512: goto parse_pubkey_algos;
1.341 djm 1513:
1.94 markus 1514: case sPubkeyAuthentication:
1515: intptr = &options->pubkey_authentication;
1.395 djm 1516: ca_only = 0;
1.94 markus 1517: goto parse_flag;
1.119 jakob 1518:
1.374 dtucker 1519: case sPubkeyAcceptedAlgorithms:
1520: charptr = &options->pubkey_accepted_algos;
1.395 djm 1521: ca_only = 0;
1.374 dtucker 1522: goto parse_pubkey_algos;
1.258 djm 1523:
1.354 djm 1524: case sPubkeyAuthOptions:
1525: intptr = &options->pubkey_auth_options;
1526: value = 0;
1.380 djm 1527: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1528: if (strcasecmp(arg, "none") == 0)
1529: continue;
1530: if (strcasecmp(arg, "touch-required") == 0)
1531: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1532: else if (strcasecmp(arg, "verify-required") == 0)
1533: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1534: else {
1.380 djm 1535: error("%s line %d: unsupported %s option %s",
1536: filename, linenum, keyword, arg);
1537: goto out;
1.354 djm 1538: }
1539: }
1540: if (*activep && *intptr == -1)
1541: *intptr = value;
1542: break;
1543:
1.94 markus 1544: case sKerberosAuthentication:
1545: intptr = &options->kerberos_authentication;
1546: goto parse_flag;
1547:
1548: case sKerberosOrLocalPasswd:
1549: intptr = &options->kerberos_or_local_passwd;
1550: goto parse_flag;
1551:
1552: case sKerberosTicketCleanup:
1553: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1554: goto parse_flag;
1555:
1556: case sKerberosGetAFSToken:
1557: intptr = &options->kerberos_get_afs_token;
1.125 markus 1558: goto parse_flag;
1559:
1560: case sGssAuthentication:
1561: intptr = &options->gss_authentication;
1562: goto parse_flag;
1563:
1564: case sGssCleanupCreds:
1565: intptr = &options->gss_cleanup_creds;
1.271 djm 1566: goto parse_flag;
1567:
1568: case sGssStrictAcceptor:
1569: intptr = &options->gss_strict_acceptor;
1.94 markus 1570: goto parse_flag;
1571:
1572: case sPasswordAuthentication:
1573: intptr = &options->password_authentication;
1574: goto parse_flag;
1575:
1576: case sKbdInteractiveAuthentication:
1577: intptr = &options->kbd_interactive_authentication;
1578: goto parse_flag;
1579:
1580: case sPrintMotd:
1581: intptr = &options->print_motd;
1582: goto parse_flag;
1583:
1584: case sPrintLastLog:
1585: intptr = &options->print_lastlog;
1586: goto parse_flag;
1587:
1588: case sX11Forwarding:
1589: intptr = &options->x11_forwarding;
1590: goto parse_flag;
1591:
1592: case sX11DisplayOffset:
1593: intptr = &options->x11_display_offset;
1.293 naddy 1594: parse_int:
1.380 djm 1595: arg = argv_next(&ac, &av);
1.322 dtucker 1596: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1597: fatal("%s line %d: %s integer value %s.",
1598: filename, linenum, keyword, errstr);
1.293 naddy 1599: if (*activep && *intptr == -1)
1600: *intptr = value;
1601: break;
1.99 stevesk 1602:
1603: case sX11UseLocalhost:
1604: intptr = &options->x11_use_localhost;
1605: goto parse_flag;
1.94 markus 1606:
1607: case sXAuthLocation:
1608: charptr = &options->xauth_location;
1609: goto parse_filename;
1610:
1.244 djm 1611: case sPermitTTY:
1612: intptr = &options->permit_tty;
1613: goto parse_flag;
1614:
1.250 djm 1615: case sPermitUserRC:
1616: intptr = &options->permit_user_rc;
1617: goto parse_flag;
1618:
1.94 markus 1619: case sStrictModes:
1620: intptr = &options->strict_modes;
1621: goto parse_flag;
1622:
1.129 markus 1623: case sTCPKeepAlive:
1624: intptr = &options->tcp_keep_alive;
1.94 markus 1625: goto parse_flag;
1626:
1627: case sEmptyPasswd:
1628: intptr = &options->permit_empty_passwd;
1.113 markus 1629: goto parse_flag;
1630:
1631: case sPermitUserEnvironment:
1632: intptr = &options->permit_user_env;
1.367 djm 1633: charptr = &options->permit_user_env_allowlist;
1.380 djm 1634: arg = argv_next(&ac, &av);
1.334 djm 1635: if (!arg || *arg == '\0')
1.380 djm 1636: fatal("%s line %d: %s missing argument.",
1637: filename, linenum, keyword);
1.334 djm 1638: value = 0;
1639: p = NULL;
1640: if (strcmp(arg, "yes") == 0)
1641: value = 1;
1642: else if (strcmp(arg, "no") == 0)
1643: value = 0;
1644: else {
1645: /* Pattern-list specified */
1646: value = 1;
1647: p = xstrdup(arg);
1648: }
1649: if (*activep && *intptr == -1) {
1650: *intptr = value;
1651: *charptr = p;
1652: p = NULL;
1653: }
1654: free(p);
1655: break;
1.94 markus 1656:
1.111 markus 1657: case sCompression:
1658: intptr = &options->compression;
1.220 djm 1659: multistate_ptr = multistate_compression;
1660: goto parse_multistate;
1.94 markus 1661:
1.235 dtucker 1662: case sRekeyLimit:
1.380 djm 1663: arg = argv_next(&ac, &av);
1.235 dtucker 1664: if (!arg || *arg == '\0')
1.380 djm 1665: fatal("%s line %d: %s missing argument.",
1666: filename, linenum, keyword);
1.235 dtucker 1667: if (strcmp(arg, "default") == 0) {
1668: val64 = 0;
1669: } else {
1.236 dtucker 1670: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1671: fatal("%.200s line %d: Bad %s number '%s': %s",
1672: filename, linenum, keyword,
1673: arg, strerror(errno));
1.235 dtucker 1674: if (val64 != 0 && val64 < 16)
1.380 djm 1675: fatal("%.200s line %d: %s too small",
1676: filename, linenum, keyword);
1.235 dtucker 1677: }
1678: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1679: options->rekey_limit = val64;
1.380 djm 1680: if (ac != 0) { /* optional rekey interval present */
1681: if (strcmp(av[0], "none") == 0) {
1682: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1683: break;
1684: }
1685: intptr = &options->rekey_interval;
1686: goto parse_time;
1687: }
1688: break;
1689:
1.94 markus 1690: case sGatewayPorts:
1.251 millert 1691: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1692: multistate_ptr = multistate_gatewayports;
1693: goto parse_multistate;
1.25 markus 1694:
1.122 markus 1695: case sUseDNS:
1696: intptr = &options->use_dns;
1.94 markus 1697: goto parse_flag;
1.53 markus 1698:
1.94 markus 1699: case sLogFacility:
1.174 dtucker 1700: log_facility_ptr = &options->log_facility;
1.380 djm 1701: arg = argv_next(&ac, &av);
1.94 markus 1702: value = log_facility_number(arg);
1.101 markus 1703: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1704: fatal("%.200s line %d: unsupported log facility '%s'",
1705: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1706: if (*log_facility_ptr == -1)
1707: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1708: break;
1.25 markus 1709:
1.94 markus 1710: case sLogLevel:
1.174 dtucker 1711: log_level_ptr = &options->log_level;
1.380 djm 1712: arg = argv_next(&ac, &av);
1.94 markus 1713: value = log_level_number(arg);
1.101 markus 1714: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1715: fatal("%.200s line %d: unsupported log level '%s'",
1716: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1717: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1718: *log_level_ptr = (LogLevel) value;
1.94 markus 1719: break;
1720:
1.370 djm 1721: case sLogVerbose:
1.380 djm 1722: found = options->num_log_verbose == 0;
1723: while ((arg = argv_next(&ac, &av)) != NULL) {
1724: if (*arg == '\0') {
1725: error("%s line %d: keyword %s empty argument",
1726: filename, linenum, keyword);
1727: goto out;
1728: }
1729: /* Allow "none" only in first position */
1730: if (strcasecmp(arg, "none") == 0) {
1.405 ! djm 1731: if (nstrs > 0 || ac > 0) {
1.380 djm 1732: error("%s line %d: keyword %s \"none\" "
1733: "argument must appear alone.",
1734: filename, linenum, keyword);
1735: goto out;
1736: }
1737: }
1738: opt_array_append(filename, linenum, keyword,
1.405 ! djm 1739: &strs, &nstrs, arg);
! 1740: }
! 1741: if (nstrs == 0) {
! 1742: fatal("%s line %d: no %s specified",
! 1743: filename, linenum, keyword);
! 1744: }
! 1745: if (found && *activep) {
! 1746: options->log_verbose = strs;
! 1747: options->num_log_verbose = nstrs;
! 1748: strs = NULL; /* transferred */
! 1749: nstrs = 0;
1.370 djm 1750: }
1751: break;
1752:
1.94 markus 1753: case sAllowTcpForwarding:
1754: intptr = &options->allow_tcp_forwarding;
1.233 djm 1755: multistate_ptr = multistate_tcpfwd;
1756: goto parse_multistate;
1.102 provos 1757:
1.251 millert 1758: case sAllowStreamLocalForwarding:
1759: intptr = &options->allow_streamlocal_forwarding;
1760: multistate_ptr = multistate_tcpfwd;
1761: goto parse_multistate;
1762:
1.178 pyr 1763: case sAllowAgentForwarding:
1764: intptr = &options->allow_agent_forwarding;
1765: goto parse_flag;
1766:
1.301 djm 1767: case sDisableForwarding:
1768: intptr = &options->disable_forwarding;
1769: goto parse_flag;
1770:
1.94 markus 1771: case sAllowUsers:
1.380 djm 1772: chararrayptr = &options->allow_users;
1773: uintptr = &options->num_allow_users;
1774: parse_allowdenyusers:
1.405 ! djm 1775: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 1776: while ((arg = argv_next(&ac, &av)) != NULL) {
1777: if (*arg == '\0' ||
1778: match_user(NULL, NULL, NULL, arg) == -1)
1779: fatal("%s line %d: invalid %s pattern: \"%s\"",
1780: filename, linenum, keyword, arg);
1.405 ! djm 1781: found = 1;
1.227 markus 1782: if (!*activep)
1783: continue;
1.380 djm 1784: opt_array_append(filename, linenum, keyword,
1785: chararrayptr, uintptr, arg);
1.94 markus 1786: }
1.405 ! djm 1787: if (!found) {
! 1788: fatal("%s line %d: no %s specified",
! 1789: filename, linenum, keyword);
! 1790: }
1.94 markus 1791: break;
1.25 markus 1792:
1.94 markus 1793: case sDenyUsers:
1.380 djm 1794: chararrayptr = &options->deny_users;
1795: uintptr = &options->num_deny_users;
1796: goto parse_allowdenyusers;
1.25 markus 1797:
1.94 markus 1798: case sAllowGroups:
1.380 djm 1799: chararrayptr = &options->allow_groups;
1800: uintptr = &options->num_allow_groups;
1.405 ! djm 1801: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 1802: parse_allowdenygroups:
1803: while ((arg = argv_next(&ac, &av)) != NULL) {
1804: if (*arg == '\0')
1805: fatal("%s line %d: empty %s pattern",
1806: filename, linenum, keyword);
1.405 ! djm 1807: found = 1;
1.227 markus 1808: if (!*activep)
1809: continue;
1.380 djm 1810: opt_array_append(filename, linenum, keyword,
1811: chararrayptr, uintptr, arg);
1.94 markus 1812: }
1.405 ! djm 1813: if (!found) {
! 1814: fatal("%s line %d: no %s specified",
! 1815: filename, linenum, keyword);
! 1816: }
1.94 markus 1817: break;
1.33 markus 1818:
1.94 markus 1819: case sDenyGroups:
1.380 djm 1820: chararrayptr = &options->deny_groups;
1821: uintptr = &options->num_deny_groups;
1822: goto parse_allowdenygroups;
1.66 markus 1823:
1.94 markus 1824: case sCiphers:
1.380 djm 1825: arg = argv_next(&ac, &av);
1.94 markus 1826: if (!arg || *arg == '\0')
1.380 djm 1827: fatal("%s line %d: %s missing argument.",
1828: filename, linenum, keyword);
1.352 naddy 1829: if (*arg != '-' &&
1830: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1831: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1832: filename, linenum, arg ? arg : "<NONE>");
1833: if (options->ciphers == NULL)
1834: options->ciphers = xstrdup(arg);
1835: break;
1.33 markus 1836:
1.94 markus 1837: case sMacs:
1.380 djm 1838: arg = argv_next(&ac, &av);
1.94 markus 1839: if (!arg || *arg == '\0')
1.380 djm 1840: fatal("%s line %d: %s missing argument.",
1841: filename, linenum, keyword);
1.352 naddy 1842: if (*arg != '-' &&
1843: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1844: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1845: filename, linenum, arg ? arg : "<NONE>");
1846: if (options->macs == NULL)
1847: options->macs = xstrdup(arg);
1.211 djm 1848: break;
1849:
1850: case sKexAlgorithms:
1.380 djm 1851: arg = argv_next(&ac, &av);
1.211 djm 1852: if (!arg || *arg == '\0')
1.380 djm 1853: fatal("%s line %d: %s missing argument.",
1854: filename, linenum, keyword);
1.304 djm 1855: if (*arg != '-' &&
1.352 naddy 1856: !kex_names_valid(*arg == '+' || *arg == '^' ?
1857: arg + 1 : arg))
1.211 djm 1858: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1859: filename, linenum, arg ? arg : "<NONE>");
1860: if (options->kex_algorithms == NULL)
1861: options->kex_algorithms = xstrdup(arg);
1.94 markus 1862: break;
1.43 jakob 1863:
1.94 markus 1864: case sSubsystem:
1.380 djm 1865: arg = argv_next(&ac, &av);
1.94 markus 1866: if (!arg || *arg == '\0')
1.380 djm 1867: fatal("%s line %d: %s missing argument.",
1868: filename, linenum, keyword);
1.153 dtucker 1869: if (!*activep) {
1.398 djm 1870: argv_consume(&ac);
1871: break;
1872: }
1873: found = 0;
1874: for (i = 0; i < options->num_subsystems; i++) {
1875: if (strcmp(arg, options->subsystem_name[i]) == 0) {
1876: found = 1;
1877: break;
1878: }
1879: }
1880: if (found) {
1881: debug("%s line %d: Subsystem '%s' already defined.",
1882: filename, linenum, arg);
1883: argv_consume(&ac);
1.153 dtucker 1884: break;
1885: }
1.400 djm 1886: options->subsystem_name = xrecallocarray(
1887: options->subsystem_name, options->num_subsystems,
1888: options->num_subsystems + 1,
1.402 djm 1889: sizeof(*options->subsystem_name));
1.400 djm 1890: options->subsystem_command = xrecallocarray(
1891: options->subsystem_command, options->num_subsystems,
1892: options->num_subsystems + 1,
1.402 djm 1893: sizeof(*options->subsystem_command));
1.400 djm 1894: options->subsystem_args = xrecallocarray(
1895: options->subsystem_args, options->num_subsystems,
1896: options->num_subsystems + 1,
1.402 djm 1897: sizeof(*options->subsystem_args));
1.94 markus 1898: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1899: arg = argv_next(&ac, &av);
1.399 djm 1900: if (!arg || *arg == '\0') {
1.94 markus 1901: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1902: filename, linenum);
1.399 djm 1903: }
1904: options->subsystem_command[options->num_subsystems] =
1905: xstrdup(arg);
1.151 djm 1906: /* Collect arguments (separate to executable) */
1.399 djm 1907: arg = argv_assemble(1, &arg); /* quote command correctly */
1908: arg2 = argv_assemble(ac, av); /* rest of command */
1909: xasprintf(&options->subsystem_args[options->num_subsystems],
1.404 djm 1910: "%s%s%s", arg, *arg2 == '\0' ? "" : " ", arg2);
1.399 djm 1911: free(arg2);
1912: argv_consume(&ac);
1.94 markus 1913: options->num_subsystems++;
1914: break;
1.46 markus 1915:
1.94 markus 1916: case sMaxStartups:
1.380 djm 1917: arg = argv_next(&ac, &av);
1.94 markus 1918: if (!arg || *arg == '\0')
1.380 djm 1919: fatal("%s line %d: %s missing argument.",
1920: filename, linenum, keyword);
1.94 markus 1921: if ((n = sscanf(arg, "%d:%d:%d",
1922: &options->max_startups_begin,
1923: &options->max_startups_rate,
1924: &options->max_startups)) == 3) {
1925: if (options->max_startups_begin >
1926: options->max_startups ||
1927: options->max_startups_rate > 100 ||
1928: options->max_startups_rate < 1)
1.380 djm 1929: fatal("%s line %d: Invalid %s spec.",
1930: filename, linenum, keyword);
1.94 markus 1931: } else if (n != 1)
1.380 djm 1932: fatal("%s line %d: Invalid %s spec.",
1933: filename, linenum, keyword);
1.94 markus 1934: else
1935: options->max_startups = options->max_startups_begin;
1.387 dtucker 1936: if (options->max_startups <= 0 ||
1937: options->max_startups_begin <= 0)
1938: fatal("%s line %d: Invalid %s spec.",
1939: filename, linenum, keyword);
1.94 markus 1940: break;
1.133 dtucker 1941:
1.372 dtucker 1942: case sPerSourceNetBlockSize:
1.380 djm 1943: arg = argv_next(&ac, &av);
1.372 dtucker 1944: if (!arg || *arg == '\0')
1.380 djm 1945: fatal("%s line %d: %s missing argument.",
1946: filename, linenum, keyword);
1.372 dtucker 1947: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1948: case 2:
1949: if (value2 < 0 || value2 > 128)
1950: n = -1;
1951: /* FALLTHROUGH */
1952: case 1:
1953: if (value < 0 || value > 32)
1954: n = -1;
1955: }
1956: if (n != 1 && n != 2)
1.380 djm 1957: fatal("%s line %d: Invalid %s spec.",
1958: filename, linenum, keyword);
1.372 dtucker 1959: if (*activep) {
1960: options->per_source_masklen_ipv4 = value;
1961: options->per_source_masklen_ipv6 = value2;
1962: }
1963: break;
1964:
1965: case sPerSourceMaxStartups:
1.380 djm 1966: arg = argv_next(&ac, &av);
1.372 dtucker 1967: if (!arg || *arg == '\0')
1.380 djm 1968: fatal("%s line %d: %s missing argument.",
1969: filename, linenum, keyword);
1.372 dtucker 1970: if (strcmp(arg, "none") == 0) { /* no limit */
1971: value = INT_MAX;
1972: } else {
1973: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1974: fatal("%s line %d: %s integer value %s.",
1975: filename, linenum, keyword, errstr);
1.372 dtucker 1976: }
1.397 djm 1977: if (*activep && options->per_source_max_startups == -1)
1.372 dtucker 1978: options->per_source_max_startups = value;
1979: break;
1980:
1.133 dtucker 1981: case sMaxAuthTries:
1982: intptr = &options->max_authtries;
1983: goto parse_int;
1.94 markus 1984:
1.180 djm 1985: case sMaxSessions:
1986: intptr = &options->max_sessions;
1987: goto parse_int;
1988:
1.94 markus 1989: case sBanner:
1990: charptr = &options->banner;
1991: goto parse_filename;
1.176 djm 1992:
1.94 markus 1993: /*
1994: * These options can contain %X options expanded at
1995: * connect time, so that you can specify paths like:
1996: *
1997: * AuthorizedKeysFile /etc/ssh_keys/%u
1998: */
1999: case sAuthorizedKeysFile:
1.405 ! djm 2000: found = options->num_authkeys_files == 0;
1.380 djm 2001: while ((arg = argv_next(&ac, &av)) != NULL) {
2002: if (*arg == '\0') {
2003: error("%s line %d: keyword %s empty argument",
2004: filename, linenum, keyword);
2005: goto out;
2006: }
2007: arg2 = tilde_expand_filename(arg, getuid());
1.405 ! djm 2008: opt_array_append(filename, linenum, keyword,
! 2009: &strs, &nstrs, arg2);
1.380 djm 2010: free(arg2);
1.219 djm 2011: }
1.405 ! djm 2012: if (nstrs == 0) {
! 2013: fatal("%s line %d: no %s specified",
! 2014: filename, linenum, keyword);
! 2015: }
! 2016: if (found && *activep) {
! 2017: options->authorized_keys_files = strs;
! 2018: options->num_authkeys_files = nstrs;
! 2019: strs = NULL; /* transferred */
! 2020: nstrs = 0;
! 2021: }
1.380 djm 2022: break;
1.219 djm 2023:
1.208 djm 2024: case sAuthorizedPrincipalsFile:
2025: charptr = &options->authorized_principals_file;
1.380 djm 2026: arg = argv_next(&ac, &av);
1.205 djm 2027: if (!arg || *arg == '\0')
1.380 djm 2028: fatal("%s line %d: %s missing argument.",
2029: filename, linenum, keyword);
1.205 djm 2030: if (*activep && *charptr == NULL) {
1.206 markus 2031: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 2032: /* increase optional counter */
2033: if (intptr != NULL)
2034: *intptr = *intptr + 1;
2035: }
2036: break;
1.94 markus 2037:
2038: case sClientAliveInterval:
2039: intptr = &options->client_alive_interval;
2040: goto parse_time;
2041:
2042: case sClientAliveCountMax:
2043: intptr = &options->client_alive_count_max;
2044: goto parse_int;
1.131 djm 2045:
2046: case sAcceptEnv:
1.405 ! djm 2047: /* XXX appends to list; doesn't respect first-match-wins */
1.380 djm 2048: while ((arg = argv_next(&ac, &av)) != NULL) {
2049: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 2050: fatal("%s line %d: Invalid environment name.",
2051: filename, linenum);
1.405 ! djm 2052: found = 1;
1.153 dtucker 2053: if (!*activep)
1.227 markus 2054: continue;
1.380 djm 2055: opt_array_append(filename, linenum, keyword,
1.314 djm 2056: &options->accept_env, &options->num_accept_env,
2057: arg);
1.131 djm 2058: }
1.405 ! djm 2059: if (!found) {
! 2060: fatal("%s line %d: no %s specified",
! 2061: filename, linenum, keyword);
! 2062: }
1.131 djm 2063: break;
1.145 reyk 2064:
1.332 djm 2065: case sSetEnv:
1.405 ! djm 2066: found = options->num_setenv == 0;
1.380 djm 2067: while ((arg = argv_next(&ac, &av)) != NULL) {
2068: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 2069: fatal("%s line %d: Invalid environment.",
2070: filename, linenum);
1.405 ! djm 2071: if (lookup_setenv_in_list(arg, strs, nstrs) != NULL) {
1.385 djm 2072: debug2("%s line %d: ignoring duplicate env "
2073: "name \"%.64s\"", filename, linenum, arg);
2074: continue;
2075: }
1.380 djm 2076: opt_array_append(filename, linenum, keyword,
1.405 ! djm 2077: &strs, &nstrs, arg);
! 2078: }
! 2079: if (nstrs == 0) {
! 2080: fatal("%s line %d: no %s specified",
! 2081: filename, linenum, keyword);
! 2082: }
! 2083: if (found && *activep) {
! 2084: options->setenv = strs;
! 2085: options->num_setenv = nstrs;
! 2086: strs = NULL; /* transferred */
! 2087: nstrs = 0;
1.332 djm 2088: }
2089: break;
2090:
1.145 reyk 2091: case sPermitTunnel:
2092: intptr = &options->permit_tun;
1.380 djm 2093: arg = argv_next(&ac, &av);
1.146 reyk 2094: if (!arg || *arg == '\0')
1.380 djm 2095: fatal("%s line %d: %s missing argument.",
2096: filename, linenum, keyword);
1.182 dtucker 2097: value = -1;
2098: for (i = 0; tunmode_desc[i].val != -1; i++)
2099: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2100: value = tunmode_desc[i].val;
2101: break;
2102: }
2103: if (value == -1)
1.380 djm 2104: fatal("%s line %d: bad %s argument %s",
2105: filename, linenum, keyword, arg);
1.268 djm 2106: if (*activep && *intptr == -1)
1.146 reyk 2107: *intptr = value;
2108: break;
1.94 markus 2109:
1.360 djm 2110: case sInclude:
2111: if (cmdline) {
2112: fatal("Include directive not supported as a "
2113: "command-line option");
2114: }
2115: value = 0;
1.380 djm 2116: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2117: if (*arg2 == '\0') {
2118: error("%s line %d: keyword %s empty argument",
2119: filename, linenum, keyword);
2120: goto out;
2121: }
1.360 djm 2122: value++;
2123: found = 0;
2124: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2125: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2126: } else
2127: arg = xstrdup(arg2);
2128:
2129: /*
2130: * Don't let included files clobber the containing
2131: * file's Match state.
2132: */
2133: oactive = *activep;
2134:
2135: /* consult cache of include files */
2136: TAILQ_FOREACH(item, includes, entry) {
2137: if (strcmp(item->selector, arg) != 0)
2138: continue;
2139: if (item->filename != NULL) {
2140: parse_server_config_depth(options,
2141: item->filename, item->contents,
2142: includes, connectinfo,
1.365 djm 2143: (*inc_flags & SSHCFG_MATCH_ONLY
2144: ? SSHCFG_MATCH_ONLY : (oactive
2145: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2146: activep, depth + 1);
2147: }
2148: found = 1;
2149: *activep = oactive;
2150: }
2151: if (found != 0) {
2152: free(arg);
2153: continue;
2154: }
2155:
2156: /* requested glob was not in cache */
2157: debug2("%s line %d: new include %s",
2158: filename, linenum, arg);
2159: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2160: if (r != GLOB_NOMATCH) {
1.380 djm 2161: fatal("%s line %d: include \"%s\" glob "
2162: "failed", filename, linenum, arg);
1.360 djm 2163: }
2164: /*
2165: * If no entry matched then record a
2166: * placeholder to skip later glob calls.
2167: */
2168: debug2("%s line %d: no match for %s",
2169: filename, linenum, arg);
2170: item = xcalloc(1, sizeof(*item));
2171: item->selector = strdup(arg);
2172: TAILQ_INSERT_TAIL(includes,
2173: item, entry);
2174: }
2175: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2176: fatal_f("too many glob results");
1.360 djm 2177: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2178: debug2("%s line %d: including %s",
2179: filename, linenum, gbuf.gl_pathv[n]);
2180: item = xcalloc(1, sizeof(*item));
2181: item->selector = strdup(arg);
2182: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2183: if ((item->contents = sshbuf_new()) == NULL)
2184: fatal_f("sshbuf_new failed");
1.360 djm 2185: load_server_config(item->filename,
2186: item->contents);
2187: parse_server_config_depth(options,
2188: item->filename, item->contents,
2189: includes, connectinfo,
1.365 djm 2190: (*inc_flags & SSHCFG_MATCH_ONLY
2191: ? SSHCFG_MATCH_ONLY : (oactive
2192: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2193: activep, depth + 1);
2194: *activep = oactive;
2195: TAILQ_INSERT_TAIL(includes, item, entry);
2196: }
2197: globfree(&gbuf);
2198: free(arg);
2199: }
2200: if (value == 0) {
1.380 djm 2201: fatal("%s line %d: %s missing filename argument",
2202: filename, linenum, keyword);
1.360 djm 2203: }
2204: break;
2205:
1.153 dtucker 2206: case sMatch:
2207: if (cmdline)
2208: fatal("Match directive not supported as a command-line "
1.379 djm 2209: "option");
1.380 djm 2210: value = match_cfg_line(&str, linenum,
1.365 djm 2211: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2212: if (value < 0)
2213: fatal("%s line %d: Bad Match condition", filename,
2214: linenum);
1.365 djm 2215: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2216: /*
2217: * The MATCH_ONLY flag is applicable only until the first
2218: * match block.
2219: */
1.365 djm 2220: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2221: /*
2222: * If match_cfg_line() didn't consume all its arguments then
2223: * arrange for the extra arguments check below to fail.
2224: */
2225: if (str == NULL || *str == '\0')
2226: argv_consume(&ac);
1.156 dtucker 2227: break;
2228:
1.330 djm 2229: case sPermitListen:
1.156 dtucker 2230: case sPermitOpen:
1.330 djm 2231: if (opcode == sPermitListen) {
2232: uintptr = &options->num_permitted_listens;
2233: chararrayptr = &options->permitted_listens;
1.329 djm 2234: } else {
2235: uintptr = &options->num_permitted_opens;
2236: chararrayptr = &options->permitted_opens;
2237: }
1.405 ! djm 2238: found = *uintptr == 0;
! 2239: while ((arg = argv_next(&ac, &av)) != NULL) {
! 2240: if (strcmp(arg, "any") == 0 ||
! 2241: strcmp(arg, "none") == 0) {
! 2242: if (nstrs != 0) {
! 2243: fatal("%s line %d: %s must appear "
! 2244: "alone on a %s line.",
! 2245: filename, linenum, arg, keyword);
! 2246: }
! 2247: opt_array_append(filename, linenum, keyword,
! 2248: &strs, &nstrs, arg);
! 2249: continue;
1.311 dtucker 2250: }
1.405 ! djm 2251:
1.333 djm 2252: if (opcode == sPermitListen &&
2253: strchr(arg, ':') == NULL) {
2254: /*
2255: * Allow bare port number for PermitListen
2256: * to indicate a wildcard listen host.
2257: */
2258: xasprintf(&arg2, "*:%s", arg);
2259: } else {
2260: arg2 = xstrdup(arg);
1.383 dtucker 2261: p = hpdelim(&arg);
2262: if (p == NULL) {
1.380 djm 2263: fatal("%s line %d: %s missing host",
2264: filename, linenum, keyword);
1.333 djm 2265: }
2266: p = cleanhostname(p);
1.329 djm 2267: }
2268: if (arg == NULL ||
2269: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2270: fatal("%s line %d: %s bad port number",
2271: filename, linenum, keyword);
1.329 djm 2272: }
1.405 ! djm 2273: opt_array_append(filename, linenum, keyword,
! 2274: &strs, &nstrs, arg2);
1.314 djm 2275: free(arg2);
1.159 dtucker 2276: }
1.405 ! djm 2277: if (nstrs == 0) {
! 2278: fatal("%s line %d: %s missing argument.",
! 2279: filename, linenum, keyword);
! 2280: }
! 2281: if (found && *activep) {
! 2282: *chararrayptr = strs;
! 2283: *uintptr = nstrs;
! 2284: strs = NULL; /* transferred */
! 2285: nstrs = 0;
! 2286: }
1.153 dtucker 2287: break;
2288:
1.158 dtucker 2289: case sForceCommand:
1.380 djm 2290: if (str == NULL || *str == '\0')
2291: fatal("%s line %d: %s missing argument.",
2292: filename, linenum, keyword);
2293: len = strspn(str, WHITESPACE);
1.158 dtucker 2294: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2295: options->adm_forced_command = xstrdup(str + len);
2296: argv_consume(&ac);
2297: break;
1.158 dtucker 2298:
1.176 djm 2299: case sChrootDirectory:
2300: charptr = &options->chroot_directory;
1.177 djm 2301:
1.380 djm 2302: arg = argv_next(&ac, &av);
1.177 djm 2303: if (!arg || *arg == '\0')
1.380 djm 2304: fatal("%s line %d: %s missing argument.",
2305: filename, linenum, keyword);
1.177 djm 2306: if (*activep && *charptr == NULL)
2307: *charptr = xstrdup(arg);
2308: break;
1.176 djm 2309:
1.204 djm 2310: case sTrustedUserCAKeys:
2311: charptr = &options->trusted_user_ca_keys;
2312: goto parse_filename;
2313:
2314: case sRevokedKeys:
2315: charptr = &options->revoked_keys_file;
2316: goto parse_filename;
2317:
1.355 djm 2318: case sSecurityKeyProvider:
2319: charptr = &options->sk_provider;
1.380 djm 2320: arg = argv_next(&ac, &av);
1.356 djm 2321: if (!arg || *arg == '\0')
1.380 djm 2322: fatal("%s line %d: %s missing argument.",
2323: filename, linenum, keyword);
1.356 djm 2324: if (*activep && *charptr == NULL) {
2325: *charptr = strcasecmp(arg, "internal") == 0 ?
2326: xstrdup(arg) : derelativise_path(arg);
2327: /* increase optional counter */
2328: if (intptr != NULL)
2329: *intptr = *intptr + 1;
2330: }
2331: break;
1.355 djm 2332:
1.213 djm 2333: case sIPQoS:
1.380 djm 2334: arg = argv_next(&ac, &av);
2335: if (!arg || *arg == '\0')
2336: fatal("%s line %d: %s missing argument.",
2337: filename, linenum, keyword);
1.213 djm 2338: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2339: fatal("%s line %d: Bad %s value: %s",
2340: filename, linenum, keyword, arg);
2341: arg = argv_next(&ac, &av);
1.213 djm 2342: if (arg == NULL)
2343: value2 = value;
2344: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2345: fatal("%s line %d: Bad %s value: %s",
2346: filename, linenum, keyword, arg);
1.213 djm 2347: if (*activep) {
2348: options->ip_qos_interactive = value;
2349: options->ip_qos_bulk = value2;
2350: }
2351: break;
2352:
1.225 djm 2353: case sVersionAddendum:
1.380 djm 2354: if (str == NULL || *str == '\0')
2355: fatal("%s line %d: %s missing argument.",
2356: filename, linenum, keyword);
2357: len = strspn(str, WHITESPACE);
2358: if (strchr(str + len, '\r') != NULL) {
2359: fatal("%.200s line %d: Invalid %s argument",
2360: filename, linenum, keyword);
2361: }
2362: if ((arg = strchr(line, '#')) != NULL) {
2363: *arg = '\0';
2364: rtrim(line);
2365: }
1.225 djm 2366: if (*activep && options->version_addendum == NULL) {
1.380 djm 2367: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2368: options->version_addendum = xstrdup("");
2369: else
1.380 djm 2370: options->version_addendum = xstrdup(str + len);
1.225 djm 2371: }
1.380 djm 2372: argv_consume(&ac);
2373: break;
1.225 djm 2374:
1.231 djm 2375: case sAuthorizedKeysCommand:
1.380 djm 2376: charptr = &options->authorized_keys_command;
2377: parse_command:
2378: len = strspn(str, WHITESPACE);
2379: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2380: fatal("%.200s line %d: %s must be an absolute path",
2381: filename, linenum, keyword);
2382: }
1.393 djm 2383: if (*activep && *charptr == NULL)
1.380 djm 2384: *charptr = xstrdup(str + len);
2385: argv_consume(&ac);
2386: break;
1.231 djm 2387:
2388: case sAuthorizedKeysCommandUser:
2389: charptr = &options->authorized_keys_command_user;
1.380 djm 2390: parse_localuser:
2391: arg = argv_next(&ac, &av);
2392: if (!arg || *arg == '\0') {
2393: fatal("%s line %d: missing %s argument.",
2394: filename, linenum, keyword);
2395: }
1.231 djm 2396: if (*activep && *charptr == NULL)
2397: *charptr = xstrdup(arg);
2398: break;
2399:
1.270 djm 2400: case sAuthorizedPrincipalsCommand:
1.380 djm 2401: charptr = &options->authorized_principals_command;
2402: goto parse_command;
1.270 djm 2403:
2404: case sAuthorizedPrincipalsCommandUser:
2405: charptr = &options->authorized_principals_command_user;
1.380 djm 2406: goto parse_localuser;
1.270 djm 2407:
1.232 djm 2408: case sAuthenticationMethods:
1.380 djm 2409: found = options->num_auth_methods == 0;
2410: value = 0; /* seen "any" pseudo-method */
2411: while ((arg = argv_next(&ac, &av)) != NULL) {
2412: if (strcmp(arg, "any") == 0) {
1.405 ! djm 2413: if (nstrs > 0) {
1.380 djm 2414: fatal("%s line %d: \"any\" must "
2415: "appear alone in %s",
2416: filename, linenum, keyword);
1.291 djm 2417: }
1.380 djm 2418: value = 1;
2419: } else if (value) {
2420: fatal("%s line %d: \"any\" must appear "
2421: "alone in %s", filename, linenum, keyword);
2422: } else if (auth2_methods_valid(arg, 0) != 0) {
2423: fatal("%s line %d: invalid %s method list.",
2424: filename, linenum, keyword);
1.291 djm 2425: }
1.380 djm 2426: opt_array_append(filename, linenum, keyword,
1.405 ! djm 2427: &strs, &nstrs, arg);
1.380 djm 2428: }
1.405 ! djm 2429: if (nstrs == 0) {
1.380 djm 2430: fatal("%s line %d: no %s specified",
2431: filename, linenum, keyword);
1.232 djm 2432: }
1.405 ! djm 2433: if (found && *activep) {
! 2434: options->auth_methods = strs;
! 2435: options->num_auth_methods = nstrs;
! 2436: strs = NULL; /* transferred */
! 2437: nstrs = 0;
! 2438: }
1.380 djm 2439: break;
1.232 djm 2440:
1.251 millert 2441: case sStreamLocalBindMask:
1.380 djm 2442: arg = argv_next(&ac, &av);
1.251 millert 2443: if (!arg || *arg == '\0')
1.380 djm 2444: fatal("%s line %d: %s missing argument.",
2445: filename, linenum, keyword);
1.251 millert 2446: /* Parse mode in octal format */
2447: value = strtol(arg, &p, 8);
2448: if (arg == p || value < 0 || value > 0777)
1.380 djm 2449: fatal("%s line %d: Invalid %s.",
2450: filename, linenum, keyword);
1.268 djm 2451: if (*activep)
2452: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2453: break;
2454:
2455: case sStreamLocalBindUnlink:
2456: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2457: goto parse_flag;
2458:
1.256 djm 2459: case sFingerprintHash:
1.380 djm 2460: arg = argv_next(&ac, &av);
1.256 djm 2461: if (!arg || *arg == '\0')
1.380 djm 2462: fatal("%s line %d: %s missing argument.",
2463: filename, linenum, keyword);
1.256 djm 2464: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2465: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2466: filename, linenum, keyword, arg);
1.256 djm 2467: if (*activep)
2468: options->fingerprint_hash = value;
2469: break;
2470:
1.309 djm 2471: case sExposeAuthInfo:
2472: intptr = &options->expose_userauth_info;
2473: goto parse_flag;
2474:
1.316 djm 2475: case sRDomain:
2476: charptr = &options->routing_domain;
1.380 djm 2477: arg = argv_next(&ac, &av);
1.316 djm 2478: if (!arg || *arg == '\0')
1.380 djm 2479: fatal("%s line %d: %s missing argument.",
2480: filename, linenum, keyword);
1.316 djm 2481: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2482: !valid_rdomain(arg))
1.380 djm 2483: fatal("%s line %d: invalid routing domain",
1.316 djm 2484: filename, linenum);
2485: if (*activep && *charptr == NULL)
2486: *charptr = xstrdup(arg);
1.321 dtucker 2487: break;
1.316 djm 2488:
1.386 djm 2489: case sRequiredRSASize:
2490: intptr = &options->required_rsa_size;
2491: goto parse_int;
2492:
1.389 djm 2493: case sChannelTimeout:
1.405 ! djm 2494: found = options->num_channel_timeouts == 0;
1.389 djm 2495: while ((arg = argv_next(&ac, &av)) != NULL) {
2496: /* Allow "none" only in first position */
2497: if (strcasecmp(arg, "none") == 0) {
1.405 ! djm 2498: if (nstrs > 0 || ac > 0) {
1.389 djm 2499: error("%s line %d: keyword %s \"none\" "
2500: "argument must appear alone.",
2501: filename, linenum, keyword);
2502: goto out;
2503: }
1.403 djm 2504: } else if (parse_pattern_interval(arg,
2505: NULL, NULL) != 0) {
1.389 djm 2506: fatal("%s line %d: invalid channel timeout %s",
2507: filename, linenum, arg);
2508: }
2509: opt_array_append(filename, linenum, keyword,
1.405 ! djm 2510: &strs, &nstrs, arg);
! 2511: }
! 2512: if (nstrs == 0) {
! 2513: fatal("%s line %d: no %s specified",
! 2514: filename, linenum, keyword);
! 2515: }
! 2516: if (found && *activep) {
! 2517: options->channel_timeouts = strs;
! 2518: options->num_channel_timeouts = nstrs;
! 2519: strs = NULL; /* transferred */
! 2520: nstrs = 0;
1.389 djm 2521: }
2522: break;
2523:
1.390 djm 2524: case sUnusedConnectionTimeout:
2525: intptr = &options->unused_connection_timeout;
2526: /* peek at first arg for "none" so we can reuse parse_time */
2527: if (av[0] != NULL && strcasecmp(av[0], "none") == 0) {
2528: (void)argv_next(&ac, &av); /* consume arg */
2529: if (*activep)
2530: *intptr = 0;
2531: break;
2532: }
2533: goto parse_time;
2534:
1.94 markus 2535: case sDeprecated:
1.295 djm 2536: case sIgnore:
1.121 jakob 2537: case sUnsupported:
1.295 djm 2538: do_log2(opcode == sIgnore ?
2539: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2540: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2541: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2542: keyword);
2543: argv_consume(&ac);
1.94 markus 2544: break;
2545:
2546: default:
2547: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2548: filename, linenum, keyword, opcode);
2549: }
2550: /* Check that there is no garbage at end of line. */
2551: if (ac > 0) {
2552: error("%.200s line %d: keyword %s extra arguments "
2553: "at end of line", filename, linenum, keyword);
2554: goto out;
1.94 markus 2555: }
1.380 djm 2556:
2557: /* success */
2558: ret = 0;
2559: out:
1.405 ! djm 2560: opt_array_free2(strs, NULL, nstrs);
1.380 djm 2561: argv_free(oav, oac);
2562: return ret;
1.94 markus 2563: }
2564:
1.360 djm 2565: int
2566: process_server_config_line(ServerOptions *options, char *line,
2567: const char *filename, int linenum, int *activep,
2568: struct connection_info *connectinfo, struct include_list *includes)
2569: {
1.365 djm 2570: int inc_flags = 0;
2571:
1.360 djm 2572: return process_server_config_line_depth(options, line, filename,
1.365 djm 2573: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2574: }
2575:
2576:
1.94 markus 2577: /* Reads the server configuration file. */
1.25 markus 2578:
1.94 markus 2579: void
1.338 markus 2580: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2581: {
1.366 markus 2582: struct stat st;
1.331 markus 2583: char *line = NULL, *cp;
2584: size_t linesize = 0;
1.94 markus 2585: FILE *f;
1.388 dtucker 2586: int r;
1.81 stevesk 2587:
1.371 djm 2588: debug2_f("filename %s", filename);
1.134 djm 2589: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2590: perror(filename);
2591: exit(1);
2592: }
1.338 markus 2593: sshbuf_reset(conf);
1.366 markus 2594: /* grow buffer, so realloc is avoided for large config files */
2595: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2596: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2597: fatal_fr(r, "allocate");
1.331 markus 2598: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2599: /*
1.380 djm 2600: * Strip whitespace
1.135 deraadt 2601: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2602: * line numbers later for error messages
2603: */
2604: cp = line + strspn(line, " \t\r");
1.338 markus 2605: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2606: fatal_fr(r, "sshbuf_put");
1.134 djm 2607: }
1.331 markus 2608: free(line);
1.338 markus 2609: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2610: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2611: fclose(f);
1.371 djm 2612: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2613: }
2614:
2615: void
1.226 dtucker 2616: parse_server_match_config(ServerOptions *options,
1.360 djm 2617: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2618: {
2619: ServerOptions mo;
2620:
2621: initialize_server_options(&mo);
1.360 djm 2622: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2623: connectinfo, 0);
1.168 dtucker 2624: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2625: }
2626:
1.226 dtucker 2627: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2628: {
2629: char *p;
2630:
2631: while ((p = strsep(&spec, ",")) && *p != '\0') {
2632: if (strncmp(p, "addr=", 5) == 0) {
2633: ci->address = xstrdup(p + 5);
2634: } else if (strncmp(p, "host=", 5) == 0) {
2635: ci->host = xstrdup(p + 5);
2636: } else if (strncmp(p, "user=", 5) == 0) {
2637: ci->user = xstrdup(p + 5);
2638: } else if (strncmp(p, "laddr=", 6) == 0) {
2639: ci->laddress = xstrdup(p + 6);
1.317 djm 2640: } else if (strncmp(p, "rdomain=", 8) == 0) {
2641: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2642: } else if (strncmp(p, "lport=", 6) == 0) {
2643: ci->lport = a2port(p + 6);
2644: if (ci->lport == -1) {
2645: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2646: " specification %s\n", p+6, p);
1.226 dtucker 2647: return -1;
2648: }
2649: } else {
2650: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2651: p);
1.226 dtucker 2652: return -1;
2653: }
2654: }
2655: return 0;
2656: }
2657:
1.401 djm 2658: void
2659: servconf_merge_subsystems(ServerOptions *dst, ServerOptions *src)
2660: {
2661: u_int i, j, found;
2662:
2663: for (i = 0; i < src->num_subsystems; i++) {
2664: found = 0;
2665: for (j = 0; j < dst->num_subsystems; j++) {
2666: if (strcmp(src->subsystem_name[i],
2667: dst->subsystem_name[j]) == 0) {
2668: found = 1;
2669: break;
2670: }
2671: }
2672: if (found) {
2673: debug_f("override \"%s\"", dst->subsystem_name[j]);
2674: free(dst->subsystem_command[j]);
2675: free(dst->subsystem_args[j]);
2676: dst->subsystem_command[j] =
2677: xstrdup(src->subsystem_command[i]);
2678: dst->subsystem_args[j] =
2679: xstrdup(src->subsystem_args[i]);
2680: continue;
2681: }
2682: debug_f("add \"%s\"", src->subsystem_name[i]);
2683: dst->subsystem_name = xrecallocarray(
2684: dst->subsystem_name, dst->num_subsystems,
1.402 djm 2685: dst->num_subsystems + 1, sizeof(*dst->subsystem_name));
1.401 djm 2686: dst->subsystem_command = xrecallocarray(
2687: dst->subsystem_command, dst->num_subsystems,
1.402 djm 2688: dst->num_subsystems + 1, sizeof(*dst->subsystem_command));
1.401 djm 2689: dst->subsystem_args = xrecallocarray(
2690: dst->subsystem_args, dst->num_subsystems,
1.402 djm 2691: dst->num_subsystems + 1, sizeof(*dst->subsystem_args));
1.401 djm 2692: j = dst->num_subsystems++;
2693: dst->subsystem_name[j] = xstrdup(src->subsystem_name[i]);
2694: dst->subsystem_command[j] = xstrdup(src->subsystem_command[i]);
2695: dst->subsystem_args[j] = xstrdup(src->subsystem_args[i]);
2696: }
2697: }
2698:
1.168 dtucker 2699: /*
2700: * Copy any supported values that are set.
2701: *
1.195 jj 2702: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2703: * array values that are not used pre-authentication, because any that we
1.328 djm 2704: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2705: */
1.153 dtucker 2706: void
1.168 dtucker 2707: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2708: {
1.247 djm 2709: #define M_CP_INTOPT(n) do {\
2710: if (src->n != -1) \
2711: dst->n = src->n; \
2712: } while (0)
2713:
1.168 dtucker 2714: M_CP_INTOPT(password_authentication);
2715: M_CP_INTOPT(gss_authentication);
2716: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2717: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2718: M_CP_INTOPT(kerberos_authentication);
2719: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2720: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2721: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2722: M_CP_INTOPT(permit_root_login);
1.188 djm 2723: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2724: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2725:
2726: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2727: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2728: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2729: M_CP_INTOPT(disable_forwarding);
1.309 djm 2730: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2731: M_CP_INTOPT(permit_tun);
1.251 millert 2732: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2733: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2734: M_CP_INTOPT(x11_display_offset);
2735: M_CP_INTOPT(x11_forwarding);
2736: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2737: M_CP_INTOPT(permit_tty);
1.250 djm 2738: M_CP_INTOPT(permit_user_rc);
1.180 djm 2739: M_CP_INTOPT(max_sessions);
1.184 dtucker 2740: M_CP_INTOPT(max_authtries);
1.300 markus 2741: M_CP_INTOPT(client_alive_count_max);
2742: M_CP_INTOPT(client_alive_interval);
1.213 djm 2743: M_CP_INTOPT(ip_qos_interactive);
2744: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2745: M_CP_INTOPT(rekey_limit);
2746: M_CP_INTOPT(rekey_interval);
1.308 djm 2747: M_CP_INTOPT(log_level);
1.386 djm 2748: M_CP_INTOPT(required_rsa_size);
1.390 djm 2749: M_CP_INTOPT(unused_connection_timeout);
1.289 djm 2750:
2751: /*
2752: * The bind_mask is a mode_t that may be unsigned, so we can't use
2753: * M_CP_INTOPT - it does a signed comparison that causes compiler
2754: * warnings.
2755: */
1.290 dtucker 2756: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2757: dst->fwd_opts.streamlocal_bind_mask =
2758: src->fwd_opts.streamlocal_bind_mask;
2759: }
1.247 djm 2760:
2761: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2762: #define M_CP_STROPT(n) do {\
2763: if (src->n != NULL && dst->n != src->n) { \
2764: free(dst->n); \
2765: dst->n = src->n; \
2766: } \
2767: } while(0)
1.314 djm 2768: #define M_CP_STRARRAYOPT(s, num_s) do {\
2769: u_int i; \
2770: if (src->num_s != 0) { \
2771: for (i = 0; i < dst->num_s; i++) \
2772: free(dst->s[i]); \
2773: free(dst->s); \
2774: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2775: for (i = 0; i < src->num_s; i++) \
2776: dst->s[i] = xstrdup(src->s[i]); \
2777: dst->num_s = src->num_s; \
1.312 djm 2778: } \
2779: } while(0)
1.168 dtucker 2780:
1.218 djm 2781: /* See comment in servconf.h */
2782: COPY_MATCH_STRING_OPTS();
1.282 djm 2783:
2784: /* Arguments that accept '+...' need to be expanded */
2785: assemble_algorithms(dst);
1.216 djm 2786:
1.217 dtucker 2787: /*
2788: * The only things that should be below this point are string options
2789: * which are only used after authentication.
2790: */
1.168 dtucker 2791: if (preauth)
2792: return;
1.219 djm 2793:
1.283 djm 2794: /* These options may be "none" to clear a global setting */
1.168 dtucker 2795: M_CP_STROPT(adm_forced_command);
1.283 djm 2796: if (option_clear_or_none(dst->adm_forced_command)) {
2797: free(dst->adm_forced_command);
2798: dst->adm_forced_command = NULL;
2799: }
1.176 djm 2800: M_CP_STROPT(chroot_directory);
1.283 djm 2801: if (option_clear_or_none(dst->chroot_directory)) {
2802: free(dst->chroot_directory);
2803: dst->chroot_directory = NULL;
2804: }
1.401 djm 2805:
2806: /* Subsystems require merging. */
2807: servconf_merge_subsystems(dst, src);
1.153 dtucker 2808: }
1.168 dtucker 2809:
2810: #undef M_CP_INTOPT
2811: #undef M_CP_STROPT
1.219 djm 2812: #undef M_CP_STRARRAYOPT
1.153 dtucker 2813:
1.360 djm 2814: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2815: static void
1.360 djm 2816: parse_server_config_depth(ServerOptions *options, const char *filename,
2817: struct sshbuf *conf, struct include_list *includes,
2818: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2819: {
1.360 djm 2820: int linenum, bad_options = 0;
1.136 dtucker 2821: char *cp, *obuf, *cbuf;
1.134 djm 2822:
1.360 djm 2823: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2824: fatal("Too many recursive configuration includes");
2825:
1.371 djm 2826: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2827: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2828:
1.287 djm 2829: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2830: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2831: linenum = 1;
1.140 deraadt 2832: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2833: if (process_server_config_line_depth(options, cp,
1.365 djm 2834: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2835: depth, includes) != 0)
1.94 markus 2836: bad_options++;
1.1 deraadt 2837: }
1.239 djm 2838: free(obuf);
1.78 stevesk 2839: if (bad_options > 0)
2840: fatal("%s: terminating, %d bad configuration options",
2841: filename, bad_options);
1.360 djm 2842: }
2843:
2844: void
2845: parse_server_config(ServerOptions *options, const char *filename,
2846: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2847: struct connection_info *connectinfo, int reexec)
1.360 djm 2848: {
2849: int active = connectinfo ? 0 : 1;
2850: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2851: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2852: if (!reexec)
2853: process_queued_listen_addrs(options);
1.182 dtucker 2854: }
2855:
2856: static const char *
1.221 djm 2857: fmt_multistate_int(int val, const struct multistate *m)
2858: {
2859: u_int i;
2860:
2861: for (i = 0; m[i].key != NULL; i++) {
2862: if (m[i].value == val)
2863: return m[i].key;
2864: }
2865: return "UNKNOWN";
2866: }
2867:
2868: static const char *
1.182 dtucker 2869: fmt_intarg(ServerOpCodes code, int val)
2870: {
1.221 djm 2871: if (val == -1)
2872: return "unset";
2873: switch (code) {
2874: case sAddressFamily:
2875: return fmt_multistate_int(val, multistate_addressfamily);
2876: case sPermitRootLogin:
2877: return fmt_multistate_int(val, multistate_permitrootlogin);
2878: case sGatewayPorts:
2879: return fmt_multistate_int(val, multistate_gatewayports);
2880: case sCompression:
2881: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2882: case sAllowTcpForwarding:
2883: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2884: case sAllowStreamLocalForwarding:
2885: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2886: case sIgnoreRhosts:
2887: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2888: case sFingerprintHash:
2889: return ssh_digest_alg_name(val);
1.221 djm 2890: default:
2891: switch (val) {
2892: case 0:
2893: return "no";
2894: case 1:
2895: return "yes";
2896: default:
2897: return "UNKNOWN";
2898: }
1.182 dtucker 2899: }
2900: }
2901:
2902: static void
2903: dump_cfg_int(ServerOpCodes code, int val)
2904: {
1.390 djm 2905: if (code == sUnusedConnectionTimeout && val == 0) {
2906: printf("%s none\n", lookup_opcode_name(code));
2907: return;
2908: }
1.182 dtucker 2909: printf("%s %d\n", lookup_opcode_name(code), val);
2910: }
2911:
2912: static void
1.263 dtucker 2913: dump_cfg_oct(ServerOpCodes code, int val)
2914: {
2915: printf("%s 0%o\n", lookup_opcode_name(code), val);
2916: }
2917:
2918: static void
1.182 dtucker 2919: dump_cfg_fmtint(ServerOpCodes code, int val)
2920: {
2921: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2922: }
2923:
2924: static void
2925: dump_cfg_string(ServerOpCodes code, const char *val)
2926: {
1.257 djm 2927: printf("%s %s\n", lookup_opcode_name(code),
2928: val == NULL ? "none" : val);
1.182 dtucker 2929: }
2930:
2931: static void
2932: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2933: {
2934: u_int i;
2935:
2936: for (i = 0; i < count; i++)
1.219 djm 2937: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2938: }
2939:
2940: static void
2941: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2942: {
2943: u_int i;
2944:
1.391 djm 2945: switch (code) {
2946: case sAuthenticationMethods:
2947: case sChannelTimeout:
2948: break;
2949: default:
2950: if (count <= 0)
2951: return;
2952: break;
2953: }
2954:
1.219 djm 2955: printf("%s", lookup_opcode_name(code));
2956: for (i = 0; i < count; i++)
2957: printf(" %s", vals[i]);
1.291 djm 2958: if (code == sAuthenticationMethods && count == 0)
2959: printf(" any");
1.389 djm 2960: else if (code == sChannelTimeout && count == 0)
2961: printf(" none");
1.219 djm 2962: printf("\n");
1.182 dtucker 2963: }
2964:
1.315 djm 2965: static char *
2966: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2967: {
1.315 djm 2968: int r;
1.182 dtucker 2969: struct addrinfo *ai;
1.315 djm 2970: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2971: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2972:
1.263 dtucker 2973: /*
2974: * ListenAddress must be after Port. add_one_listen_addr pushes
2975: * addresses onto a stack, so to maintain ordering we need to
2976: * print these in reverse order.
2977: */
1.315 djm 2978: for (ai = la->addrs; ai; ai = ai->ai_next) {
2979: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2980: sizeof(addr), port, sizeof(port),
2981: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2982: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2983: continue;
2984: }
2985: laddr2 = laddr1;
2986: if (ai->ai_family == AF_INET6) {
2987: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2988: addr, port,
2989: la->rdomain == NULL ? "" : " rdomain ",
2990: la->rdomain == NULL ? "" : la->rdomain,
2991: laddr2);
1.182 dtucker 2992: } else {
1.315 djm 2993: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2994: addr, port,
2995: la->rdomain == NULL ? "" : " rdomain ",
2996: la->rdomain == NULL ? "" : la->rdomain,
2997: laddr2);
1.182 dtucker 2998: }
1.315 djm 2999: free(laddr2);
3000: }
3001: return laddr1;
3002: }
3003:
3004: void
3005: dump_config(ServerOptions *o)
3006: {
3007: char *s;
3008: u_int i;
3009:
3010: /* these are usually at the top of the config */
3011: for (i = 0; i < o->num_ports; i++)
3012: printf("port %d\n", o->ports[i]);
3013: dump_cfg_fmtint(sAddressFamily, o->address_family);
3014:
3015: for (i = 0; i < o->num_listen_addrs; i++) {
3016: s = format_listen_addrs(&o->listen_addrs[i]);
3017: printf("%s", s);
3018: free(s);
1.182 dtucker 3019: }
3020:
3021: /* integer arguments */
3022: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
3023: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
3024: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 3025: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 3026: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
3027: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 3028: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 3029: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.390 djm 3030: dump_cfg_int(sUnusedConnectionTimeout, o->unused_connection_timeout);
1.182 dtucker 3031:
3032: /* formatted integer arguments */
3033: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
3034: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
3035: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
3036: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
3037: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
3038: o->hostbased_uses_name_from_packet_only);
3039: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 3040: #ifdef KRB5
1.182 dtucker 3041: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
3042: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
3043: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
3044: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 3045: #endif
3046: #ifdef GSSAPI
1.182 dtucker 3047: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
3048: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 3049: #endif
1.182 dtucker 3050: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
3051: dump_cfg_fmtint(sKbdInteractiveAuthentication,
3052: o->kbd_interactive_authentication);
3053: dump_cfg_fmtint(sPrintMotd, o->print_motd);
3054: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
3055: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
3056: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 3057: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 3058: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 3059: dump_cfg_fmtint(sStrictModes, o->strict_modes);
3060: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
3061: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
3062: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 3063: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 3064: dump_cfg_fmtint(sUseDNS, o->use_dns);
3065: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 3066: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 3067: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 3068: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 3069: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 3070: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 3071: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 3072:
3073: /* string arguments */
3074: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 3075: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 3076: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 3077: dump_cfg_string(sCiphers, o->ciphers);
3078: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 3079: dump_cfg_string(sBanner, o->banner);
3080: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 3081: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 3082: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
3083: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 3084: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 3085: dump_cfg_string(sAuthorizedPrincipalsFile,
3086: o->authorized_principals_file);
1.261 dtucker 3087: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
3088: ? "none" : o->version_addendum);
1.231 djm 3089: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
3090: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 3091: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
3092: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 3093: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 3094: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
3095: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 3096: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 3097: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 3098: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 3099: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 3100:
3101: /* string arguments requiring a lookup */
3102: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
3103: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
3104:
3105: /* string array arguments */
1.219 djm 3106: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
3107: o->authorized_keys_files);
1.182 dtucker 3108: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 3109: o->host_key_files);
1.261 dtucker 3110: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 3111: o->host_cert_files);
1.182 dtucker 3112: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
3113: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
3114: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3115: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3116: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3117: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3118: dump_cfg_strarray_oneline(sAuthenticationMethods,
3119: o->num_auth_methods, o->auth_methods);
1.370 djm 3120: dump_cfg_strarray_oneline(sLogVerbose,
3121: o->num_log_verbose, o->log_verbose);
1.389 djm 3122: dump_cfg_strarray_oneline(sChannelTimeout,
3123: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3124:
3125: /* other arguments */
3126: for (i = 0; i < o->num_subsystems; i++)
3127: printf("subsystem %s %s\n", o->subsystem_name[i],
3128: o->subsystem_args[i]);
3129:
3130: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3131: o->max_startups_rate, o->max_startups);
1.372 dtucker 3132: printf("persourcemaxstartups ");
3133: if (o->per_source_max_startups == INT_MAX)
3134: printf("none\n");
3135: else
3136: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3137: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3138: o->per_source_masklen_ipv6);
1.182 dtucker 3139:
1.318 djm 3140: s = NULL;
3141: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3142: if (tunmode_desc[i].val == o->permit_tun) {
3143: s = tunmode_desc[i].text;
3144: break;
3145: }
1.318 djm 3146: }
1.182 dtucker 3147: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3148:
1.214 stevesk 3149: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3150: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3151:
1.284 dtucker 3152: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3153: o->rekey_interval);
1.182 dtucker 3154:
1.310 djm 3155: printf("permitopen");
3156: if (o->num_permitted_opens == 0)
3157: printf(" any");
3158: else {
3159: for (i = 0; i < o->num_permitted_opens; i++)
3160: printf(" %s", o->permitted_opens[i]);
1.329 djm 3161: }
3162: printf("\n");
1.330 djm 3163: printf("permitlisten");
3164: if (o->num_permitted_listens == 0)
1.329 djm 3165: printf(" any");
3166: else {
1.330 djm 3167: for (i = 0; i < o->num_permitted_listens; i++)
3168: printf(" %s", o->permitted_listens[i]);
1.310 djm 3169: }
3170: printf("\n");
1.334 djm 3171:
1.367 djm 3172: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3173: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3174: } else {
3175: printf("permituserenvironment %s\n",
1.367 djm 3176: o->permit_user_env_allowlist);
1.334 djm 3177: }
3178:
1.354 djm 3179: printf("pubkeyauthoptions");
3180: if (o->pubkey_auth_options == 0)
3181: printf(" none");
3182: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3183: printf(" touch-required");
1.368 djm 3184: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3185: printf(" verify-required");
1.354 djm 3186: printf("\n");
1.1 deraadt 3187: }
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