Annotation of src/usr.bin/ssh/servconf.c, Revision 1.401
1.401 ! djm 1: /* $OpenBSD: servconf.c,v 1.400 2023/09/06 23:26:37 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: /* Parse a ChannelTimeout clause "pattern=interval" */
909: static int
1.394 millert 910: parse_timeout(const char *s, char **typep, int *secsp)
1.389 djm 911: {
912: char *cp, *sdup;
913: int secs;
914:
915: if (typep != NULL)
916: *typep = NULL;
917: if (secsp != NULL)
918: *secsp = 0;
919: if (s == NULL)
920: return -1;
921: sdup = xstrdup(s);
922:
923: if ((cp = strchr(sdup, '=')) == NULL || cp == sdup) {
924: free(sdup);
925: return -1;
926: }
927: *cp++ = '\0';
928: if ((secs = convtime(cp)) < 0) {
929: free(sdup);
930: return -1;
931: }
932: /* success */
933: if (typep != NULL)
934: *typep = xstrdup(sdup);
935: if (secsp != NULL)
1.394 millert 936: *secsp = secs;
1.389 djm 937: free(sdup);
938: return 0;
939: }
940:
941: void
942: process_channel_timeouts(struct ssh *ssh, ServerOptions *options)
943: {
1.394 millert 944: int secs;
945: u_int i;
1.389 djm 946: char *type;
947:
948: debug3_f("setting %u timeouts", options->num_channel_timeouts);
949: channel_clear_timeouts(ssh);
950: for (i = 0; i < options->num_channel_timeouts; i++) {
951: if (parse_timeout(options->channel_timeouts[i],
952: &type, &secs) != 0) {
953: fatal_f("internal error: bad timeout %s",
954: options->channel_timeouts[i]);
955: }
956: channel_add_timeout(ssh, type, secs);
957: free(type);
958: }
959: }
960:
1.226 dtucker 961: struct connection_info *
1.346 djm 962: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 963: {
964: static struct connection_info ci;
965:
1.346 djm 966: if (ssh == NULL || !populate)
1.226 dtucker 967: return &ci;
1.286 djm 968: ci.host = auth_get_canonical_hostname(ssh, use_dns);
969: ci.address = ssh_remote_ipaddr(ssh);
970: ci.laddress = ssh_local_ipaddr(ssh);
971: ci.lport = ssh_local_port(ssh);
1.317 djm 972: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 973: return &ci;
974: }
975:
1.153 dtucker 976: /*
977: * The strategy for the Match blocks is that the config file is parsed twice.
978: *
979: * The first time is at startup. activep is initialized to 1 and the
980: * directives in the global context are processed and acted on. Hitting a
981: * Match directive unsets activep and the directives inside the block are
982: * checked for syntax only.
983: *
984: * The second time is after a connection has been established but before
985: * authentication. activep is initialized to 2 and global config directives
986: * are ignored since they have already been processed. If the criteria in a
987: * Match block is met, activep is set and the subsequent directives
988: * processed and actioned until EOF or another Match block unsets it. Any
989: * options set are copied into the main server config.
990: *
991: * Potential additions/improvements:
1.295 djm 992: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 993: *
994: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
995: * Match Address 192.168.0.*
996: * Tag trusted
997: * Match Group wheel
998: * Tag trusted
999: * Match Tag trusted
1000: * AllowTcpForwarding yes
1001: * GatewayPorts clientspecified
1002: * [...]
1003: *
1004: * - Add a PermittedChannelRequests directive
1005: * Match Group shell
1006: * PermittedChannelRequests session,forwarded-tcpip
1007: */
1008:
1009: static int
1.165 dtucker 1010: match_cfg_line_group(const char *grps, int line, const char *user)
1011: {
1012: int result = 0;
1013: struct passwd *pw;
1014:
1015: if (user == NULL)
1016: goto out;
1017:
1018: if ((pw = getpwnam(user)) == NULL) {
1019: debug("Can't match group at line %d because user %.100s does "
1020: "not exist", line, user);
1021: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
1022: debug("Can't Match group because user %.100s not in any group "
1023: "at line %d", user, line);
1.186 djm 1024: } else if (ga_match_pattern_list(grps) != 1) {
1025: debug("user %.100s does not match group list %.100s at line %d",
1026: user, grps, line);
1.165 dtucker 1027: } else {
1.186 djm 1028: debug("user %.100s matched group list %.100s at line %d", user,
1029: grps, line);
1.165 dtucker 1030: result = 1;
1031: }
1032: out:
1033: ga_free();
1034: return result;
1035: }
1036:
1.319 dtucker 1037: static void
1038: match_test_missing_fatal(const char *criteria, const char *attrib)
1039: {
1040: fatal("'Match %s' in configuration but '%s' not in connection "
1041: "test specification.", criteria, attrib);
1042: }
1043:
1.226 dtucker 1044: /*
1.230 dtucker 1045: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 1046: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 1047: * not match.
1.226 dtucker 1048: */
1.165 dtucker 1049: static int
1.226 dtucker 1050: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 1051: {
1.243 dtucker 1052: int result = 1, attributes = 0, port;
1.153 dtucker 1053: char *arg, *attrib, *cp = *condition;
1054:
1.226 dtucker 1055: if (ci == NULL)
1.153 dtucker 1056: debug3("checking syntax for 'Match %s'", cp);
1057: else
1.226 dtucker 1058: debug3("checking match for '%s' user %s host %s addr %s "
1059: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
1060: ci->host ? ci->host : "(null)",
1061: ci->address ? ci->address : "(null)",
1062: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 1063:
1064: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 1065: /* Terminate on comment */
1066: if (*attrib == '#') {
1067: cp = NULL; /* mark all arguments consumed */
1068: break;
1069: }
1070: arg = NULL;
1.243 dtucker 1071: attributes++;
1.380 djm 1072: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1073: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 1074: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
1075: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1076: error("'all' cannot be combined with other "
1077: "Match attributes");
1078: return -1;
1079: }
1.380 djm 1080: if (arg != NULL && *arg == '#')
1081: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1082: *condition = cp;
1083: return 1;
1084: }
1.380 djm 1085: /* All other criteria require an argument */
1086: if ((arg = strdelim(&cp)) == NULL ||
1087: *arg == '\0' || *arg == '#') {
1.153 dtucker 1088: error("Missing Match criteria for %s", attrib);
1089: return -1;
1090: }
1091: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1092: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1093: result = 0;
1094: continue;
1095: }
1.319 dtucker 1096: if (ci->user == NULL)
1097: match_test_missing_fatal("User", "user");
1.349 dtucker 1098: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1099: result = 0;
1100: else
1101: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1102: "line %d", ci->user, arg, line);
1.165 dtucker 1103: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1104: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1105: result = 0;
1106: continue;
1107: }
1.319 dtucker 1108: if (ci->user == NULL)
1109: match_test_missing_fatal("Group", "user");
1.226 dtucker 1110: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1111: case -1:
1112: return -1;
1113: case 0:
1114: result = 0;
1115: }
1.153 dtucker 1116: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1117: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1118: result = 0;
1119: continue;
1120: }
1.319 dtucker 1121: if (ci->host == NULL)
1122: match_test_missing_fatal("Host", "host");
1.269 djm 1123: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1124: result = 0;
1125: else
1126: debug("connection from %.100s matched 'Host "
1.226 dtucker 1127: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1128: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1129: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1130: if (addr_match_list(NULL, arg) != 0)
1131: fatal("Invalid Match address argument "
1132: "'%s' at line %d", arg, line);
1.226 dtucker 1133: result = 0;
1134: continue;
1135: }
1.319 dtucker 1136: if (ci->address == NULL)
1137: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1138: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1139: case 1:
1140: debug("connection from %.100s matched 'Address "
1.226 dtucker 1141: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1142: break;
1143: case 0:
1.183 djm 1144: case -1:
1.153 dtucker 1145: result = 0;
1.181 djm 1146: break;
1.183 djm 1147: case -2:
1.181 djm 1148: return -1;
1.153 dtucker 1149: }
1.226 dtucker 1150: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1151: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1152: if (addr_match_list(NULL, arg) != 0)
1153: fatal("Invalid Match localaddress "
1154: "argument '%s' at line %d", arg,
1155: line);
1.226 dtucker 1156: result = 0;
1157: continue;
1158: }
1.319 dtucker 1159: if (ci->laddress == NULL)
1160: match_test_missing_fatal("LocalAddress",
1161: "laddr");
1.226 dtucker 1162: switch (addr_match_list(ci->laddress, arg)) {
1163: case 1:
1164: debug("connection from %.100s matched "
1165: "'LocalAddress %.100s' at line %d",
1166: ci->laddress, arg, line);
1167: break;
1168: case 0:
1169: case -1:
1170: result = 0;
1171: break;
1172: case -2:
1173: return -1;
1174: }
1175: } else if (strcasecmp(attrib, "localport") == 0) {
1176: if ((port = a2port(arg)) == -1) {
1177: error("Invalid LocalPort '%s' on Match line",
1178: arg);
1179: return -1;
1180: }
1.351 dtucker 1181: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1182: result = 0;
1183: continue;
1184: }
1.319 dtucker 1185: if (ci->lport == 0)
1186: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1187: /* TODO support port lists */
1188: if (port == ci->lport)
1189: debug("connection from %.100s matched "
1190: "'LocalPort %d' at line %d",
1191: ci->laddress, port, line);
1192: else
1193: result = 0;
1.317 djm 1194: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1195: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1196: result = 0;
1197: continue;
1198: }
1.351 dtucker 1199: if (ci->rdomain == NULL)
1200: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1201: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1202: result = 0;
1203: else
1204: debug("user %.100s matched 'RDomain %.100s' at "
1205: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1206: } else {
1207: error("Unsupported Match attribute %s", attrib);
1208: return -1;
1209: }
1.243 dtucker 1210: }
1211: if (attributes == 0) {
1212: error("One or more attributes required for Match");
1213: return -1;
1.153 dtucker 1214: }
1.226 dtucker 1215: if (ci != NULL)
1.153 dtucker 1216: debug3("match %sfound", result ? "" : "not ");
1217: *condition = cp;
1218: return result;
1219: }
1220:
1.158 dtucker 1221: #define WHITESPACE " \t\r\n"
1222:
1.220 djm 1223: /* Multistate option parsing */
1224: struct multistate {
1225: char *key;
1226: int value;
1227: };
1.320 djm 1228: static const struct multistate multistate_flag[] = {
1229: { "yes", 1 },
1230: { "no", 0 },
1231: { NULL, -1 }
1232: };
1.363 djm 1233: static const struct multistate multistate_ignore_rhosts[] = {
1234: { "yes", IGNORE_RHOSTS_YES },
1235: { "no", IGNORE_RHOSTS_NO },
1236: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1237: { NULL, -1 }
1238: };
1.220 djm 1239: static const struct multistate multistate_addressfamily[] = {
1240: { "inet", AF_INET },
1241: { "inet6", AF_INET6 },
1242: { "any", AF_UNSPEC },
1243: { NULL, -1 }
1244: };
1245: static const struct multistate multistate_permitrootlogin[] = {
1246: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1247: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1248: { "forced-commands-only", PERMIT_FORCED_ONLY },
1249: { "yes", PERMIT_YES },
1250: { "no", PERMIT_NO },
1251: { NULL, -1 }
1252: };
1253: static const struct multistate multistate_compression[] = {
1.359 dtucker 1254: #ifdef WITH_ZLIB
1.337 sf 1255: { "yes", COMP_DELAYED },
1256: { "delayed", COMP_DELAYED },
1.359 dtucker 1257: #endif
1.220 djm 1258: { "no", COMP_NONE },
1259: { NULL, -1 }
1260: };
1261: static const struct multistate multistate_gatewayports[] = {
1262: { "clientspecified", 2 },
1263: { "yes", 1 },
1264: { "no", 0 },
1.222 djm 1265: { NULL, -1 }
1266: };
1.233 djm 1267: static const struct multistate multistate_tcpfwd[] = {
1268: { "yes", FORWARD_ALLOW },
1269: { "all", FORWARD_ALLOW },
1270: { "no", FORWARD_DENY },
1271: { "remote", FORWARD_REMOTE },
1272: { "local", FORWARD_LOCAL },
1273: { NULL, -1 }
1274: };
1.220 djm 1275:
1.360 djm 1276: static int
1277: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1278: const char *filename, int linenum, int *activep,
1.365 djm 1279: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1280: struct include_list *includes)
1.1 deraadt 1281: {
1.383 dtucker 1282: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.360 djm 1283: int cmdline = 0, *intptr, value, value2, n, port, oactive, r, found;
1.395 djm 1284: int ca_only = 0;
1.174 dtucker 1285: SyslogFacility *log_facility_ptr;
1286: LogLevel *log_level_ptr;
1.25 markus 1287: ServerOpCodes opcode;
1.329 djm 1288: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1289: size_t len;
1.237 dtucker 1290: long long val64;
1.220 djm 1291: const struct multistate *multistate_ptr;
1.322 dtucker 1292: const char *errstr;
1.360 djm 1293: struct include_item *item;
1294: glob_t gbuf;
1.380 djm 1295: char **oav = NULL, **av;
1296: int oac = 0, ac;
1297: int ret = -1;
1.303 djm 1298:
1299: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1300: if ((len = strlen(line)) == 0)
1301: return 0;
1302: for (len--; len > 0; len--) {
1303: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1304: break;
1305: line[len] = '\0';
1306: }
1.25 markus 1307:
1.380 djm 1308: str = line;
1309: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1310: return 0;
1.94 markus 1311: /* Ignore leading whitespace */
1.380 djm 1312: if (*keyword == '\0')
1313: keyword = strdelim(&str);
1314: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1315: return 0;
1.380 djm 1316: if (str == NULL || *str == '\0') {
1317: error("%s line %d: no argument after keyword \"%s\"",
1318: filename, linenum, keyword);
1319: return -1;
1320: }
1.94 markus 1321: intptr = NULL;
1322: charptr = NULL;
1.380 djm 1323: opcode = parse_token(keyword, filename, linenum, &flags);
1324:
1325: if (argv_split(str, &oac, &oav, 1) != 0) {
1326: error("%s line %d: invalid quotes", filename, linenum);
1327: return -1;
1328: }
1329: ac = oac;
1330: av = oav;
1.153 dtucker 1331:
1332: if (activep == NULL) { /* We are processing a command line directive */
1333: cmdline = 1;
1334: activep = &cmdline;
1335: }
1.360 djm 1336: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1337: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1338: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1339: if (connectinfo == NULL) {
1.153 dtucker 1340: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1341: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1342: } else { /* this is a directive we have already processed */
1.380 djm 1343: ret = 0;
1344: goto out;
1.153 dtucker 1345: }
1346: }
1347:
1.94 markus 1348: switch (opcode) {
1349: case sBadOption:
1.380 djm 1350: goto out;
1.94 markus 1351: case sPort:
1352: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1353: if (options->ports_from_cmdline) {
1354: argv_consume(&ac);
1355: break;
1356: }
1.94 markus 1357: if (options->num_ports >= MAX_PORTS)
1358: fatal("%s line %d: too many ports.",
1359: filename, linenum);
1.380 djm 1360: arg = argv_next(&ac, &av);
1.94 markus 1361: if (!arg || *arg == '\0')
1362: fatal("%s line %d: missing port number.",
1363: filename, linenum);
1364: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1365: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1366: fatal("%s line %d: Badly formatted port number.",
1367: filename, linenum);
1368: break;
1.29 markus 1369:
1.94 markus 1370: case sLoginGraceTime:
1371: intptr = &options->login_grace_time;
1.180 djm 1372: parse_time:
1.380 djm 1373: arg = argv_next(&ac, &av);
1.94 markus 1374: if (!arg || *arg == '\0')
1375: fatal("%s line %d: missing time value.",
1376: filename, linenum);
1377: if ((value = convtime(arg)) == -1)
1378: fatal("%s line %d: invalid time value.",
1379: filename, linenum);
1.268 djm 1380: if (*activep && *intptr == -1)
1.94 markus 1381: *intptr = value;
1382: break;
1383:
1384: case sListenAddress:
1.380 djm 1385: arg = argv_next(&ac, &av);
1.139 djm 1386: if (arg == NULL || *arg == '\0')
1387: fatal("%s line %d: missing address",
1.94 markus 1388: filename, linenum);
1.144 dtucker 1389: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1390: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1391: && strchr(p+1, ':') != NULL) {
1.315 djm 1392: port = 0;
1393: p = arg;
1394: } else {
1.347 dtucker 1395: arg2 = NULL;
1.383 dtucker 1396: p = hpdelim(&arg);
1397: if (p == NULL)
1.315 djm 1398: fatal("%s line %d: bad address:port usage",
1399: filename, linenum);
1400: p = cleanhostname(p);
1401: if (arg == NULL)
1402: port = 0;
1403: else if ((port = a2port(arg)) <= 0)
1404: fatal("%s line %d: bad port number",
1405: filename, linenum);
1406: }
1407: /* Optional routing table */
1408: arg2 = NULL;
1.380 djm 1409: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1410: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1411: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1412: fatal("%s line %d: bad ListenAddress syntax",
1413: filename, linenum);
1414: if (!valid_rdomain(arg2))
1415: fatal("%s line %d: bad routing domain",
1416: filename, linenum);
1.144 dtucker 1417: }
1.315 djm 1418: queue_listen_addr(options, p, arg2, port);
1.25 markus 1419:
1.138 djm 1420: break;
1421:
1422: case sAddressFamily:
1.220 djm 1423: intptr = &options->address_family;
1424: multistate_ptr = multistate_addressfamily;
1425: parse_multistate:
1.380 djm 1426: arg = argv_next(&ac, &av);
1.141 markus 1427: if (!arg || *arg == '\0')
1.220 djm 1428: fatal("%s line %d: missing argument.",
1.141 markus 1429: filename, linenum);
1.220 djm 1430: value = -1;
1431: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1432: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1433: value = multistate_ptr[i].value;
1434: break;
1435: }
1436: }
1437: if (value == -1)
1438: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1439: filename, linenum, arg);
1.220 djm 1440: if (*activep && *intptr == -1)
1.138 djm 1441: *intptr = value;
1.94 markus 1442: break;
1443:
1444: case sHostKeyFile:
1.380 djm 1445: arg = argv_next(&ac, &av);
1.94 markus 1446: if (!arg || *arg == '\0')
1447: fatal("%s line %d: missing file name.",
1448: filename, linenum);
1.344 djm 1449: if (*activep) {
1450: servconf_add_hostkey(filename, linenum,
1451: options, arg, 1);
1452: }
1.94 markus 1453: break;
1.76 stevesk 1454:
1.240 markus 1455: case sHostKeyAgent:
1456: charptr = &options->host_key_agent;
1.380 djm 1457: arg = argv_next(&ac, &av);
1.240 markus 1458: if (!arg || *arg == '\0')
1459: fatal("%s line %d: missing socket name.",
1460: filename, linenum);
1461: if (*activep && *charptr == NULL)
1462: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1463: xstrdup(arg) : derelativise_path(arg);
1464: break;
1465:
1.203 djm 1466: case sHostCertificate:
1.380 djm 1467: arg = argv_next(&ac, &av);
1.314 djm 1468: if (!arg || *arg == '\0')
1469: fatal("%s line %d: missing file name.",
1470: filename, linenum);
1471: if (*activep)
1472: servconf_add_hostcert(filename, linenum, options, arg);
1473: break;
1.203 djm 1474:
1.94 markus 1475: case sPidFile:
1476: charptr = &options->pid_file;
1.314 djm 1477: parse_filename:
1.380 djm 1478: arg = argv_next(&ac, &av);
1.314 djm 1479: if (!arg || *arg == '\0')
1480: fatal("%s line %d: missing file name.",
1481: filename, linenum);
1482: if (*activep && *charptr == NULL) {
1483: *charptr = derelativise_path(arg);
1484: /* increase optional counter */
1485: if (intptr != NULL)
1486: *intptr = *intptr + 1;
1487: }
1488: break;
1.25 markus 1489:
1.378 dtucker 1490: case sModuliFile:
1491: charptr = &options->moduli_file;
1492: goto parse_filename;
1493:
1.94 markus 1494: case sPermitRootLogin:
1495: intptr = &options->permit_root_login;
1.220 djm 1496: multistate_ptr = multistate_permitrootlogin;
1497: goto parse_multistate;
1.36 markus 1498:
1.94 markus 1499: case sIgnoreRhosts:
1500: intptr = &options->ignore_rhosts;
1.363 djm 1501: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1502: goto parse_multistate;
1.94 markus 1503:
1504: case sIgnoreUserKnownHosts:
1505: intptr = &options->ignore_user_known_hosts;
1.363 djm 1506: parse_flag:
1507: multistate_ptr = multistate_flag;
1508: goto parse_multistate;
1.94 markus 1509:
1510: case sHostbasedAuthentication:
1511: intptr = &options->hostbased_authentication;
1512: goto parse_flag;
1513:
1514: case sHostbasedUsesNameFromPacketOnly:
1515: intptr = &options->hostbased_uses_name_from_packet_only;
1516: goto parse_flag;
1517:
1.375 dtucker 1518: case sHostbasedAcceptedAlgorithms:
1519: charptr = &options->hostbased_accepted_algos;
1.395 djm 1520: ca_only = 0;
1.374 dtucker 1521: parse_pubkey_algos:
1.380 djm 1522: arg = argv_next(&ac, &av);
1.258 djm 1523: if (!arg || *arg == '\0')
1524: fatal("%s line %d: Missing argument.",
1525: filename, linenum);
1.304 djm 1526: if (*arg != '-' &&
1.352 naddy 1527: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1.395 djm 1528: arg + 1 : arg, 1, ca_only))
1.258 djm 1529: fatal("%s line %d: Bad key types '%s'.",
1530: filename, linenum, arg ? arg : "<NONE>");
1531: if (*activep && *charptr == NULL)
1532: *charptr = xstrdup(arg);
1533: break;
1534:
1.276 markus 1535: case sHostKeyAlgorithms:
1536: charptr = &options->hostkeyalgorithms;
1.395 djm 1537: ca_only = 0;
1.374 dtucker 1538: goto parse_pubkey_algos;
1.276 markus 1539:
1.341 djm 1540: case sCASignatureAlgorithms:
1541: charptr = &options->ca_sign_algorithms;
1.395 djm 1542: ca_only = 1;
1.374 dtucker 1543: goto parse_pubkey_algos;
1.341 djm 1544:
1.94 markus 1545: case sPubkeyAuthentication:
1546: intptr = &options->pubkey_authentication;
1.395 djm 1547: ca_only = 0;
1.94 markus 1548: goto parse_flag;
1.119 jakob 1549:
1.374 dtucker 1550: case sPubkeyAcceptedAlgorithms:
1551: charptr = &options->pubkey_accepted_algos;
1.395 djm 1552: ca_only = 0;
1.374 dtucker 1553: goto parse_pubkey_algos;
1.258 djm 1554:
1.354 djm 1555: case sPubkeyAuthOptions:
1556: intptr = &options->pubkey_auth_options;
1557: value = 0;
1.380 djm 1558: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1559: if (strcasecmp(arg, "none") == 0)
1560: continue;
1561: if (strcasecmp(arg, "touch-required") == 0)
1562: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1563: else if (strcasecmp(arg, "verify-required") == 0)
1564: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1565: else {
1.380 djm 1566: error("%s line %d: unsupported %s option %s",
1567: filename, linenum, keyword, arg);
1568: goto out;
1.354 djm 1569: }
1570: }
1571: if (*activep && *intptr == -1)
1572: *intptr = value;
1573: break;
1574:
1.94 markus 1575: case sKerberosAuthentication:
1576: intptr = &options->kerberos_authentication;
1577: goto parse_flag;
1578:
1579: case sKerberosOrLocalPasswd:
1580: intptr = &options->kerberos_or_local_passwd;
1581: goto parse_flag;
1582:
1583: case sKerberosTicketCleanup:
1584: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1585: goto parse_flag;
1586:
1587: case sKerberosGetAFSToken:
1588: intptr = &options->kerberos_get_afs_token;
1.125 markus 1589: goto parse_flag;
1590:
1591: case sGssAuthentication:
1592: intptr = &options->gss_authentication;
1593: goto parse_flag;
1594:
1595: case sGssCleanupCreds:
1596: intptr = &options->gss_cleanup_creds;
1.271 djm 1597: goto parse_flag;
1598:
1599: case sGssStrictAcceptor:
1600: intptr = &options->gss_strict_acceptor;
1.94 markus 1601: goto parse_flag;
1602:
1603: case sPasswordAuthentication:
1604: intptr = &options->password_authentication;
1605: goto parse_flag;
1606:
1607: case sKbdInteractiveAuthentication:
1608: intptr = &options->kbd_interactive_authentication;
1609: goto parse_flag;
1610:
1611: case sPrintMotd:
1612: intptr = &options->print_motd;
1613: goto parse_flag;
1614:
1615: case sPrintLastLog:
1616: intptr = &options->print_lastlog;
1617: goto parse_flag;
1618:
1619: case sX11Forwarding:
1620: intptr = &options->x11_forwarding;
1621: goto parse_flag;
1622:
1623: case sX11DisplayOffset:
1624: intptr = &options->x11_display_offset;
1.293 naddy 1625: parse_int:
1.380 djm 1626: arg = argv_next(&ac, &av);
1.322 dtucker 1627: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1628: fatal("%s line %d: %s integer value %s.",
1629: filename, linenum, keyword, errstr);
1.293 naddy 1630: if (*activep && *intptr == -1)
1631: *intptr = value;
1632: break;
1.99 stevesk 1633:
1634: case sX11UseLocalhost:
1635: intptr = &options->x11_use_localhost;
1636: goto parse_flag;
1.94 markus 1637:
1638: case sXAuthLocation:
1639: charptr = &options->xauth_location;
1640: goto parse_filename;
1641:
1.244 djm 1642: case sPermitTTY:
1643: intptr = &options->permit_tty;
1644: goto parse_flag;
1645:
1.250 djm 1646: case sPermitUserRC:
1647: intptr = &options->permit_user_rc;
1648: goto parse_flag;
1649:
1.94 markus 1650: case sStrictModes:
1651: intptr = &options->strict_modes;
1652: goto parse_flag;
1653:
1.129 markus 1654: case sTCPKeepAlive:
1655: intptr = &options->tcp_keep_alive;
1.94 markus 1656: goto parse_flag;
1657:
1658: case sEmptyPasswd:
1659: intptr = &options->permit_empty_passwd;
1.113 markus 1660: goto parse_flag;
1661:
1662: case sPermitUserEnvironment:
1663: intptr = &options->permit_user_env;
1.367 djm 1664: charptr = &options->permit_user_env_allowlist;
1.380 djm 1665: arg = argv_next(&ac, &av);
1.334 djm 1666: if (!arg || *arg == '\0')
1.380 djm 1667: fatal("%s line %d: %s missing argument.",
1668: filename, linenum, keyword);
1.334 djm 1669: value = 0;
1670: p = NULL;
1671: if (strcmp(arg, "yes") == 0)
1672: value = 1;
1673: else if (strcmp(arg, "no") == 0)
1674: value = 0;
1675: else {
1676: /* Pattern-list specified */
1677: value = 1;
1678: p = xstrdup(arg);
1679: }
1680: if (*activep && *intptr == -1) {
1681: *intptr = value;
1682: *charptr = p;
1683: p = NULL;
1684: }
1685: free(p);
1686: break;
1.94 markus 1687:
1.111 markus 1688: case sCompression:
1689: intptr = &options->compression;
1.220 djm 1690: multistate_ptr = multistate_compression;
1691: goto parse_multistate;
1.94 markus 1692:
1.235 dtucker 1693: case sRekeyLimit:
1.380 djm 1694: arg = argv_next(&ac, &av);
1.235 dtucker 1695: if (!arg || *arg == '\0')
1.380 djm 1696: fatal("%s line %d: %s missing argument.",
1697: filename, linenum, keyword);
1.235 dtucker 1698: if (strcmp(arg, "default") == 0) {
1699: val64 = 0;
1700: } else {
1.236 dtucker 1701: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1702: fatal("%.200s line %d: Bad %s number '%s': %s",
1703: filename, linenum, keyword,
1704: arg, strerror(errno));
1.235 dtucker 1705: if (val64 != 0 && val64 < 16)
1.380 djm 1706: fatal("%.200s line %d: %s too small",
1707: filename, linenum, keyword);
1.235 dtucker 1708: }
1709: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1710: options->rekey_limit = val64;
1.380 djm 1711: if (ac != 0) { /* optional rekey interval present */
1712: if (strcmp(av[0], "none") == 0) {
1713: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1714: break;
1715: }
1716: intptr = &options->rekey_interval;
1717: goto parse_time;
1718: }
1719: break;
1720:
1.94 markus 1721: case sGatewayPorts:
1.251 millert 1722: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1723: multistate_ptr = multistate_gatewayports;
1724: goto parse_multistate;
1.25 markus 1725:
1.122 markus 1726: case sUseDNS:
1727: intptr = &options->use_dns;
1.94 markus 1728: goto parse_flag;
1.53 markus 1729:
1.94 markus 1730: case sLogFacility:
1.174 dtucker 1731: log_facility_ptr = &options->log_facility;
1.380 djm 1732: arg = argv_next(&ac, &av);
1.94 markus 1733: value = log_facility_number(arg);
1.101 markus 1734: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1735: fatal("%.200s line %d: unsupported log facility '%s'",
1736: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1737: if (*log_facility_ptr == -1)
1738: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1739: break;
1.25 markus 1740:
1.94 markus 1741: case sLogLevel:
1.174 dtucker 1742: log_level_ptr = &options->log_level;
1.380 djm 1743: arg = argv_next(&ac, &av);
1.94 markus 1744: value = log_level_number(arg);
1.101 markus 1745: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1746: fatal("%.200s line %d: unsupported log level '%s'",
1747: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1748: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1749: *log_level_ptr = (LogLevel) value;
1.94 markus 1750: break;
1751:
1.370 djm 1752: case sLogVerbose:
1.380 djm 1753: found = options->num_log_verbose == 0;
1754: i = 0;
1755: while ((arg = argv_next(&ac, &av)) != NULL) {
1756: if (*arg == '\0') {
1757: error("%s line %d: keyword %s empty argument",
1758: filename, linenum, keyword);
1759: goto out;
1760: }
1761: /* Allow "none" only in first position */
1762: if (strcasecmp(arg, "none") == 0) {
1763: if (i > 0 || ac > 0) {
1764: error("%s line %d: keyword %s \"none\" "
1765: "argument must appear alone.",
1766: filename, linenum, keyword);
1767: goto out;
1768: }
1769: }
1770: i++;
1771: if (!found || !*activep)
1.370 djm 1772: continue;
1.380 djm 1773: opt_array_append(filename, linenum, keyword,
1.370 djm 1774: &options->log_verbose, &options->num_log_verbose,
1775: arg);
1776: }
1777: break;
1778:
1.94 markus 1779: case sAllowTcpForwarding:
1780: intptr = &options->allow_tcp_forwarding;
1.233 djm 1781: multistate_ptr = multistate_tcpfwd;
1782: goto parse_multistate;
1.102 provos 1783:
1.251 millert 1784: case sAllowStreamLocalForwarding:
1785: intptr = &options->allow_streamlocal_forwarding;
1786: multistate_ptr = multistate_tcpfwd;
1787: goto parse_multistate;
1788:
1.178 pyr 1789: case sAllowAgentForwarding:
1790: intptr = &options->allow_agent_forwarding;
1791: goto parse_flag;
1792:
1.301 djm 1793: case sDisableForwarding:
1794: intptr = &options->disable_forwarding;
1795: goto parse_flag;
1796:
1.94 markus 1797: case sAllowUsers:
1.380 djm 1798: chararrayptr = &options->allow_users;
1799: uintptr = &options->num_allow_users;
1800: parse_allowdenyusers:
1801: while ((arg = argv_next(&ac, &av)) != NULL) {
1802: if (*arg == '\0' ||
1803: match_user(NULL, NULL, NULL, arg) == -1)
1804: fatal("%s line %d: invalid %s pattern: \"%s\"",
1805: filename, linenum, keyword, arg);
1.227 markus 1806: if (!*activep)
1807: continue;
1.380 djm 1808: opt_array_append(filename, linenum, keyword,
1809: chararrayptr, uintptr, arg);
1.94 markus 1810: }
1811: break;
1.25 markus 1812:
1.94 markus 1813: case sDenyUsers:
1.380 djm 1814: chararrayptr = &options->deny_users;
1815: uintptr = &options->num_deny_users;
1816: goto parse_allowdenyusers;
1.25 markus 1817:
1.94 markus 1818: case sAllowGroups:
1.380 djm 1819: chararrayptr = &options->allow_groups;
1820: uintptr = &options->num_allow_groups;
1821: parse_allowdenygroups:
1822: while ((arg = argv_next(&ac, &av)) != NULL) {
1823: if (*arg == '\0')
1824: fatal("%s line %d: empty %s pattern",
1825: filename, linenum, keyword);
1.227 markus 1826: if (!*activep)
1827: continue;
1.380 djm 1828: opt_array_append(filename, linenum, keyword,
1829: chararrayptr, uintptr, arg);
1.94 markus 1830: }
1831: break;
1.33 markus 1832:
1.94 markus 1833: case sDenyGroups:
1.380 djm 1834: chararrayptr = &options->deny_groups;
1835: uintptr = &options->num_deny_groups;
1836: goto parse_allowdenygroups;
1.66 markus 1837:
1.94 markus 1838: case sCiphers:
1.380 djm 1839: arg = argv_next(&ac, &av);
1.94 markus 1840: if (!arg || *arg == '\0')
1.380 djm 1841: fatal("%s line %d: %s missing argument.",
1842: filename, linenum, keyword);
1.352 naddy 1843: if (*arg != '-' &&
1844: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1845: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1846: filename, linenum, arg ? arg : "<NONE>");
1847: if (options->ciphers == NULL)
1848: options->ciphers = xstrdup(arg);
1849: break;
1.33 markus 1850:
1.94 markus 1851: case sMacs:
1.380 djm 1852: arg = argv_next(&ac, &av);
1.94 markus 1853: if (!arg || *arg == '\0')
1.380 djm 1854: fatal("%s line %d: %s missing argument.",
1855: filename, linenum, keyword);
1.352 naddy 1856: if (*arg != '-' &&
1857: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1858: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1859: filename, linenum, arg ? arg : "<NONE>");
1860: if (options->macs == NULL)
1861: options->macs = xstrdup(arg);
1.211 djm 1862: break;
1863:
1864: case sKexAlgorithms:
1.380 djm 1865: arg = argv_next(&ac, &av);
1.211 djm 1866: if (!arg || *arg == '\0')
1.380 djm 1867: fatal("%s line %d: %s missing argument.",
1868: filename, linenum, keyword);
1.304 djm 1869: if (*arg != '-' &&
1.352 naddy 1870: !kex_names_valid(*arg == '+' || *arg == '^' ?
1871: arg + 1 : arg))
1.211 djm 1872: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1873: filename, linenum, arg ? arg : "<NONE>");
1874: if (options->kex_algorithms == NULL)
1875: options->kex_algorithms = xstrdup(arg);
1.94 markus 1876: break;
1.43 jakob 1877:
1.94 markus 1878: case sSubsystem:
1.380 djm 1879: arg = argv_next(&ac, &av);
1.94 markus 1880: if (!arg || *arg == '\0')
1.380 djm 1881: fatal("%s line %d: %s missing argument.",
1882: filename, linenum, keyword);
1.153 dtucker 1883: if (!*activep) {
1.398 djm 1884: argv_consume(&ac);
1885: break;
1886: }
1887: found = 0;
1888: for (i = 0; i < options->num_subsystems; i++) {
1889: if (strcmp(arg, options->subsystem_name[i]) == 0) {
1890: found = 1;
1891: break;
1892: }
1893: }
1894: if (found) {
1895: debug("%s line %d: Subsystem '%s' already defined.",
1896: filename, linenum, arg);
1897: argv_consume(&ac);
1.153 dtucker 1898: break;
1899: }
1.400 djm 1900: options->subsystem_name = xrecallocarray(
1901: options->subsystem_name, options->num_subsystems,
1902: options->num_subsystems + 1,
1903: sizeof(options->subsystem_name));
1904: options->subsystem_command = xrecallocarray(
1905: options->subsystem_command, options->num_subsystems,
1906: options->num_subsystems + 1,
1907: sizeof(options->subsystem_command));
1908: options->subsystem_args = xrecallocarray(
1909: options->subsystem_args, options->num_subsystems,
1910: options->num_subsystems + 1,
1911: sizeof(options->subsystem_args));
1.94 markus 1912: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1913: arg = argv_next(&ac, &av);
1.399 djm 1914: if (!arg || *arg == '\0') {
1.94 markus 1915: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1916: filename, linenum);
1.399 djm 1917: }
1918: options->subsystem_command[options->num_subsystems] =
1919: xstrdup(arg);
1.151 djm 1920: /* Collect arguments (separate to executable) */
1.399 djm 1921: arg = argv_assemble(1, &arg); /* quote command correctly */
1922: arg2 = argv_assemble(ac, av); /* rest of command */
1923: xasprintf(&options->subsystem_args[options->num_subsystems],
1924: "%s %s", arg, arg2);
1925: free(arg2);
1926: argv_consume(&ac);
1.94 markus 1927: options->num_subsystems++;
1928: break;
1.46 markus 1929:
1.94 markus 1930: case sMaxStartups:
1.380 djm 1931: arg = argv_next(&ac, &av);
1.94 markus 1932: if (!arg || *arg == '\0')
1.380 djm 1933: fatal("%s line %d: %s missing argument.",
1934: filename, linenum, keyword);
1.94 markus 1935: if ((n = sscanf(arg, "%d:%d:%d",
1936: &options->max_startups_begin,
1937: &options->max_startups_rate,
1938: &options->max_startups)) == 3) {
1939: if (options->max_startups_begin >
1940: options->max_startups ||
1941: options->max_startups_rate > 100 ||
1942: options->max_startups_rate < 1)
1.380 djm 1943: fatal("%s line %d: Invalid %s spec.",
1944: filename, linenum, keyword);
1.94 markus 1945: } else if (n != 1)
1.380 djm 1946: fatal("%s line %d: Invalid %s spec.",
1947: filename, linenum, keyword);
1.94 markus 1948: else
1949: options->max_startups = options->max_startups_begin;
1.387 dtucker 1950: if (options->max_startups <= 0 ||
1951: options->max_startups_begin <= 0)
1952: fatal("%s line %d: Invalid %s spec.",
1953: filename, linenum, keyword);
1.94 markus 1954: break;
1.133 dtucker 1955:
1.372 dtucker 1956: case sPerSourceNetBlockSize:
1.380 djm 1957: arg = argv_next(&ac, &av);
1.372 dtucker 1958: if (!arg || *arg == '\0')
1.380 djm 1959: fatal("%s line %d: %s missing argument.",
1960: filename, linenum, keyword);
1.372 dtucker 1961: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1962: case 2:
1963: if (value2 < 0 || value2 > 128)
1964: n = -1;
1965: /* FALLTHROUGH */
1966: case 1:
1967: if (value < 0 || value > 32)
1968: n = -1;
1969: }
1970: if (n != 1 && n != 2)
1.380 djm 1971: fatal("%s line %d: Invalid %s spec.",
1972: filename, linenum, keyword);
1.372 dtucker 1973: if (*activep) {
1974: options->per_source_masklen_ipv4 = value;
1975: options->per_source_masklen_ipv6 = value2;
1976: }
1977: break;
1978:
1979: case sPerSourceMaxStartups:
1.380 djm 1980: arg = argv_next(&ac, &av);
1.372 dtucker 1981: if (!arg || *arg == '\0')
1.380 djm 1982: fatal("%s line %d: %s missing argument.",
1983: filename, linenum, keyword);
1.372 dtucker 1984: if (strcmp(arg, "none") == 0) { /* no limit */
1985: value = INT_MAX;
1986: } else {
1987: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1988: fatal("%s line %d: %s integer value %s.",
1989: filename, linenum, keyword, errstr);
1.372 dtucker 1990: }
1.397 djm 1991: if (*activep && options->per_source_max_startups == -1)
1.372 dtucker 1992: options->per_source_max_startups = value;
1993: break;
1994:
1.133 dtucker 1995: case sMaxAuthTries:
1996: intptr = &options->max_authtries;
1997: goto parse_int;
1.94 markus 1998:
1.180 djm 1999: case sMaxSessions:
2000: intptr = &options->max_sessions;
2001: goto parse_int;
2002:
1.94 markus 2003: case sBanner:
2004: charptr = &options->banner;
2005: goto parse_filename;
1.176 djm 2006:
1.94 markus 2007: /*
2008: * These options can contain %X options expanded at
2009: * connect time, so that you can specify paths like:
2010: *
2011: * AuthorizedKeysFile /etc/ssh_keys/%u
2012: */
2013: case sAuthorizedKeysFile:
1.380 djm 2014: uvalue = options->num_authkeys_files;
2015: while ((arg = argv_next(&ac, &av)) != NULL) {
2016: if (*arg == '\0') {
2017: error("%s line %d: keyword %s empty argument",
2018: filename, linenum, keyword);
2019: goto out;
2020: }
2021: arg2 = tilde_expand_filename(arg, getuid());
2022: if (*activep && uvalue == 0) {
2023: opt_array_append(filename, linenum, keyword,
1.314 djm 2024: &options->authorized_keys_files,
1.380 djm 2025: &options->num_authkeys_files, arg2);
1.219 djm 2026: }
1.380 djm 2027: free(arg2);
1.219 djm 2028: }
1.380 djm 2029: break;
1.219 djm 2030:
1.208 djm 2031: case sAuthorizedPrincipalsFile:
2032: charptr = &options->authorized_principals_file;
1.380 djm 2033: arg = argv_next(&ac, &av);
1.205 djm 2034: if (!arg || *arg == '\0')
1.380 djm 2035: fatal("%s line %d: %s missing argument.",
2036: filename, linenum, keyword);
1.205 djm 2037: if (*activep && *charptr == NULL) {
1.206 markus 2038: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 2039: /* increase optional counter */
2040: if (intptr != NULL)
2041: *intptr = *intptr + 1;
2042: }
2043: break;
1.94 markus 2044:
2045: case sClientAliveInterval:
2046: intptr = &options->client_alive_interval;
2047: goto parse_time;
2048:
2049: case sClientAliveCountMax:
2050: intptr = &options->client_alive_count_max;
2051: goto parse_int;
1.131 djm 2052:
2053: case sAcceptEnv:
1.380 djm 2054: while ((arg = argv_next(&ac, &av)) != NULL) {
2055: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 2056: fatal("%s line %d: Invalid environment name.",
2057: filename, linenum);
1.153 dtucker 2058: if (!*activep)
1.227 markus 2059: continue;
1.380 djm 2060: opt_array_append(filename, linenum, keyword,
1.314 djm 2061: &options->accept_env, &options->num_accept_env,
2062: arg);
1.131 djm 2063: }
2064: break;
1.145 reyk 2065:
1.332 djm 2066: case sSetEnv:
2067: uvalue = options->num_setenv;
1.380 djm 2068: while ((arg = argv_next(&ac, &av)) != NULL) {
2069: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 2070: fatal("%s line %d: Invalid environment.",
2071: filename, linenum);
2072: if (!*activep || uvalue != 0)
2073: continue;
1.385 djm 2074: if (lookup_setenv_in_list(arg, options->setenv,
2075: options->num_setenv) != NULL) {
2076: debug2("%s line %d: ignoring duplicate env "
2077: "name \"%.64s\"", filename, linenum, arg);
2078: continue;
2079: }
1.380 djm 2080: opt_array_append(filename, linenum, keyword,
1.332 djm 2081: &options->setenv, &options->num_setenv, arg);
2082: }
2083: break;
2084:
1.145 reyk 2085: case sPermitTunnel:
2086: intptr = &options->permit_tun;
1.380 djm 2087: arg = argv_next(&ac, &av);
1.146 reyk 2088: if (!arg || *arg == '\0')
1.380 djm 2089: fatal("%s line %d: %s missing argument.",
2090: filename, linenum, keyword);
1.182 dtucker 2091: value = -1;
2092: for (i = 0; tunmode_desc[i].val != -1; i++)
2093: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2094: value = tunmode_desc[i].val;
2095: break;
2096: }
2097: if (value == -1)
1.380 djm 2098: fatal("%s line %d: bad %s argument %s",
2099: filename, linenum, keyword, arg);
1.268 djm 2100: if (*activep && *intptr == -1)
1.146 reyk 2101: *intptr = value;
2102: break;
1.94 markus 2103:
1.360 djm 2104: case sInclude:
2105: if (cmdline) {
2106: fatal("Include directive not supported as a "
2107: "command-line option");
2108: }
2109: value = 0;
1.380 djm 2110: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2111: if (*arg2 == '\0') {
2112: error("%s line %d: keyword %s empty argument",
2113: filename, linenum, keyword);
2114: goto out;
2115: }
1.360 djm 2116: value++;
2117: found = 0;
2118: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2119: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2120: } else
2121: arg = xstrdup(arg2);
2122:
2123: /*
2124: * Don't let included files clobber the containing
2125: * file's Match state.
2126: */
2127: oactive = *activep;
2128:
2129: /* consult cache of include files */
2130: TAILQ_FOREACH(item, includes, entry) {
2131: if (strcmp(item->selector, arg) != 0)
2132: continue;
2133: if (item->filename != NULL) {
2134: parse_server_config_depth(options,
2135: item->filename, item->contents,
2136: includes, connectinfo,
1.365 djm 2137: (*inc_flags & SSHCFG_MATCH_ONLY
2138: ? SSHCFG_MATCH_ONLY : (oactive
2139: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2140: activep, depth + 1);
2141: }
2142: found = 1;
2143: *activep = oactive;
2144: }
2145: if (found != 0) {
2146: free(arg);
2147: continue;
2148: }
2149:
2150: /* requested glob was not in cache */
2151: debug2("%s line %d: new include %s",
2152: filename, linenum, arg);
2153: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2154: if (r != GLOB_NOMATCH) {
1.380 djm 2155: fatal("%s line %d: include \"%s\" glob "
2156: "failed", filename, linenum, arg);
1.360 djm 2157: }
2158: /*
2159: * If no entry matched then record a
2160: * placeholder to skip later glob calls.
2161: */
2162: debug2("%s line %d: no match for %s",
2163: filename, linenum, arg);
2164: item = xcalloc(1, sizeof(*item));
2165: item->selector = strdup(arg);
2166: TAILQ_INSERT_TAIL(includes,
2167: item, entry);
2168: }
2169: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2170: fatal_f("too many glob results");
1.360 djm 2171: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2172: debug2("%s line %d: including %s",
2173: filename, linenum, gbuf.gl_pathv[n]);
2174: item = xcalloc(1, sizeof(*item));
2175: item->selector = strdup(arg);
2176: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2177: if ((item->contents = sshbuf_new()) == NULL)
2178: fatal_f("sshbuf_new failed");
1.360 djm 2179: load_server_config(item->filename,
2180: item->contents);
2181: parse_server_config_depth(options,
2182: item->filename, item->contents,
2183: includes, connectinfo,
1.365 djm 2184: (*inc_flags & SSHCFG_MATCH_ONLY
2185: ? SSHCFG_MATCH_ONLY : (oactive
2186: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2187: activep, depth + 1);
2188: *activep = oactive;
2189: TAILQ_INSERT_TAIL(includes, item, entry);
2190: }
2191: globfree(&gbuf);
2192: free(arg);
2193: }
2194: if (value == 0) {
1.380 djm 2195: fatal("%s line %d: %s missing filename argument",
2196: filename, linenum, keyword);
1.360 djm 2197: }
2198: break;
2199:
1.153 dtucker 2200: case sMatch:
2201: if (cmdline)
2202: fatal("Match directive not supported as a command-line "
1.379 djm 2203: "option");
1.380 djm 2204: value = match_cfg_line(&str, linenum,
1.365 djm 2205: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2206: if (value < 0)
2207: fatal("%s line %d: Bad Match condition", filename,
2208: linenum);
1.365 djm 2209: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2210: /*
2211: * The MATCH_ONLY flag is applicable only until the first
2212: * match block.
2213: */
1.365 djm 2214: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2215: /*
2216: * If match_cfg_line() didn't consume all its arguments then
2217: * arrange for the extra arguments check below to fail.
2218: */
2219: if (str == NULL || *str == '\0')
2220: argv_consume(&ac);
1.156 dtucker 2221: break;
2222:
1.330 djm 2223: case sPermitListen:
1.156 dtucker 2224: case sPermitOpen:
1.330 djm 2225: if (opcode == sPermitListen) {
2226: uintptr = &options->num_permitted_listens;
2227: chararrayptr = &options->permitted_listens;
1.329 djm 2228: } else {
2229: uintptr = &options->num_permitted_opens;
2230: chararrayptr = &options->permitted_opens;
2231: }
1.380 djm 2232: arg = argv_next(&ac, &av);
1.156 dtucker 2233: if (!arg || *arg == '\0')
1.380 djm 2234: fatal("%s line %d: %s missing argument.",
2235: filename, linenum, keyword);
1.329 djm 2236: uvalue = *uintptr; /* modified later */
1.310 djm 2237: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 2238: if (*activep && uvalue == 0) {
2239: *uintptr = 1;
2240: *chararrayptr = xcalloc(1,
2241: sizeof(**chararrayptr));
2242: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 2243: }
1.156 dtucker 2244: break;
2245: }
1.380 djm 2246: for (; arg != NULL && *arg != '\0'; arg = argv_next(&ac, &av)) {
1.333 djm 2247: if (opcode == sPermitListen &&
2248: strchr(arg, ':') == NULL) {
2249: /*
2250: * Allow bare port number for PermitListen
2251: * to indicate a wildcard listen host.
2252: */
2253: xasprintf(&arg2, "*:%s", arg);
2254: } else {
2255: arg2 = xstrdup(arg);
1.383 dtucker 2256: p = hpdelim(&arg);
2257: if (p == NULL) {
1.380 djm 2258: fatal("%s line %d: %s missing host",
2259: filename, linenum, keyword);
1.333 djm 2260: }
2261: p = cleanhostname(p);
1.329 djm 2262: }
2263: if (arg == NULL ||
2264: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2265: fatal("%s line %d: %s bad port number",
2266: filename, linenum, keyword);
1.329 djm 2267: }
2268: if (*activep && uvalue == 0) {
1.380 djm 2269: opt_array_append(filename, linenum, keyword,
1.329 djm 2270: chararrayptr, uintptr, arg2);
1.314 djm 2271: }
2272: free(arg2);
1.159 dtucker 2273: }
1.153 dtucker 2274: break;
2275:
1.158 dtucker 2276: case sForceCommand:
1.380 djm 2277: if (str == NULL || *str == '\0')
2278: fatal("%s line %d: %s missing argument.",
2279: filename, linenum, keyword);
2280: len = strspn(str, WHITESPACE);
1.158 dtucker 2281: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2282: options->adm_forced_command = xstrdup(str + len);
2283: argv_consume(&ac);
2284: break;
1.158 dtucker 2285:
1.176 djm 2286: case sChrootDirectory:
2287: charptr = &options->chroot_directory;
1.177 djm 2288:
1.380 djm 2289: arg = argv_next(&ac, &av);
1.177 djm 2290: if (!arg || *arg == '\0')
1.380 djm 2291: fatal("%s line %d: %s missing argument.",
2292: filename, linenum, keyword);
1.177 djm 2293: if (*activep && *charptr == NULL)
2294: *charptr = xstrdup(arg);
2295: break;
1.176 djm 2296:
1.204 djm 2297: case sTrustedUserCAKeys:
2298: charptr = &options->trusted_user_ca_keys;
2299: goto parse_filename;
2300:
2301: case sRevokedKeys:
2302: charptr = &options->revoked_keys_file;
2303: goto parse_filename;
2304:
1.355 djm 2305: case sSecurityKeyProvider:
2306: charptr = &options->sk_provider;
1.380 djm 2307: arg = argv_next(&ac, &av);
1.356 djm 2308: if (!arg || *arg == '\0')
1.380 djm 2309: fatal("%s line %d: %s missing argument.",
2310: filename, linenum, keyword);
1.356 djm 2311: if (*activep && *charptr == NULL) {
2312: *charptr = strcasecmp(arg, "internal") == 0 ?
2313: xstrdup(arg) : derelativise_path(arg);
2314: /* increase optional counter */
2315: if (intptr != NULL)
2316: *intptr = *intptr + 1;
2317: }
2318: break;
1.355 djm 2319:
1.213 djm 2320: case sIPQoS:
1.380 djm 2321: arg = argv_next(&ac, &av);
2322: if (!arg || *arg == '\0')
2323: fatal("%s line %d: %s missing argument.",
2324: filename, linenum, keyword);
1.213 djm 2325: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2326: fatal("%s line %d: Bad %s value: %s",
2327: filename, linenum, keyword, arg);
2328: arg = argv_next(&ac, &av);
1.213 djm 2329: if (arg == NULL)
2330: value2 = value;
2331: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2332: fatal("%s line %d: Bad %s value: %s",
2333: filename, linenum, keyword, arg);
1.213 djm 2334: if (*activep) {
2335: options->ip_qos_interactive = value;
2336: options->ip_qos_bulk = value2;
2337: }
2338: break;
2339:
1.225 djm 2340: case sVersionAddendum:
1.380 djm 2341: if (str == NULL || *str == '\0')
2342: fatal("%s line %d: %s missing argument.",
2343: filename, linenum, keyword);
2344: len = strspn(str, WHITESPACE);
2345: if (strchr(str + len, '\r') != NULL) {
2346: fatal("%.200s line %d: Invalid %s argument",
2347: filename, linenum, keyword);
2348: }
2349: if ((arg = strchr(line, '#')) != NULL) {
2350: *arg = '\0';
2351: rtrim(line);
2352: }
1.225 djm 2353: if (*activep && options->version_addendum == NULL) {
1.380 djm 2354: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2355: options->version_addendum = xstrdup("");
2356: else
1.380 djm 2357: options->version_addendum = xstrdup(str + len);
1.225 djm 2358: }
1.380 djm 2359: argv_consume(&ac);
2360: break;
1.225 djm 2361:
1.231 djm 2362: case sAuthorizedKeysCommand:
1.380 djm 2363: charptr = &options->authorized_keys_command;
2364: parse_command:
2365: len = strspn(str, WHITESPACE);
2366: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2367: fatal("%.200s line %d: %s must be an absolute path",
2368: filename, linenum, keyword);
2369: }
1.393 djm 2370: if (*activep && *charptr == NULL)
1.380 djm 2371: *charptr = xstrdup(str + len);
2372: argv_consume(&ac);
2373: break;
1.231 djm 2374:
2375: case sAuthorizedKeysCommandUser:
2376: charptr = &options->authorized_keys_command_user;
1.380 djm 2377: parse_localuser:
2378: arg = argv_next(&ac, &av);
2379: if (!arg || *arg == '\0') {
2380: fatal("%s line %d: missing %s argument.",
2381: filename, linenum, keyword);
2382: }
1.231 djm 2383: if (*activep && *charptr == NULL)
2384: *charptr = xstrdup(arg);
2385: break;
2386:
1.270 djm 2387: case sAuthorizedPrincipalsCommand:
1.380 djm 2388: charptr = &options->authorized_principals_command;
2389: goto parse_command;
1.270 djm 2390:
2391: case sAuthorizedPrincipalsCommandUser:
2392: charptr = &options->authorized_principals_command_user;
1.380 djm 2393: goto parse_localuser;
1.270 djm 2394:
1.232 djm 2395: case sAuthenticationMethods:
1.380 djm 2396: found = options->num_auth_methods == 0;
2397: value = 0; /* seen "any" pseudo-method */
2398: value2 = 0; /* successfully parsed any method */
2399: while ((arg = argv_next(&ac, &av)) != NULL) {
2400: if (strcmp(arg, "any") == 0) {
2401: if (options->num_auth_methods > 0) {
2402: fatal("%s line %d: \"any\" must "
2403: "appear alone in %s",
2404: filename, linenum, keyword);
1.291 djm 2405: }
1.380 djm 2406: value = 1;
2407: } else if (value) {
2408: fatal("%s line %d: \"any\" must appear "
2409: "alone in %s", filename, linenum, keyword);
2410: } else if (auth2_methods_valid(arg, 0) != 0) {
2411: fatal("%s line %d: invalid %s method list.",
2412: filename, linenum, keyword);
1.291 djm 2413: }
1.380 djm 2414: value2 = 1;
2415: if (!found || !*activep)
2416: continue;
2417: opt_array_append(filename, linenum, keyword,
2418: &options->auth_methods,
2419: &options->num_auth_methods, arg);
2420: }
2421: if (value2 == 0) {
2422: fatal("%s line %d: no %s specified",
2423: filename, linenum, keyword);
1.232 djm 2424: }
1.380 djm 2425: break;
1.232 djm 2426:
1.251 millert 2427: case sStreamLocalBindMask:
1.380 djm 2428: arg = argv_next(&ac, &av);
1.251 millert 2429: if (!arg || *arg == '\0')
1.380 djm 2430: fatal("%s line %d: %s missing argument.",
2431: filename, linenum, keyword);
1.251 millert 2432: /* Parse mode in octal format */
2433: value = strtol(arg, &p, 8);
2434: if (arg == p || value < 0 || value > 0777)
1.380 djm 2435: fatal("%s line %d: Invalid %s.",
2436: filename, linenum, keyword);
1.268 djm 2437: if (*activep)
2438: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2439: break;
2440:
2441: case sStreamLocalBindUnlink:
2442: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2443: goto parse_flag;
2444:
1.256 djm 2445: case sFingerprintHash:
1.380 djm 2446: arg = argv_next(&ac, &av);
1.256 djm 2447: if (!arg || *arg == '\0')
1.380 djm 2448: fatal("%s line %d: %s missing argument.",
2449: filename, linenum, keyword);
1.256 djm 2450: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2451: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2452: filename, linenum, keyword, arg);
1.256 djm 2453: if (*activep)
2454: options->fingerprint_hash = value;
2455: break;
2456:
1.309 djm 2457: case sExposeAuthInfo:
2458: intptr = &options->expose_userauth_info;
2459: goto parse_flag;
2460:
1.316 djm 2461: case sRDomain:
2462: charptr = &options->routing_domain;
1.380 djm 2463: arg = argv_next(&ac, &av);
1.316 djm 2464: if (!arg || *arg == '\0')
1.380 djm 2465: fatal("%s line %d: %s missing argument.",
2466: filename, linenum, keyword);
1.316 djm 2467: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2468: !valid_rdomain(arg))
1.380 djm 2469: fatal("%s line %d: invalid routing domain",
1.316 djm 2470: filename, linenum);
2471: if (*activep && *charptr == NULL)
2472: *charptr = xstrdup(arg);
1.321 dtucker 2473: break;
1.316 djm 2474:
1.386 djm 2475: case sRequiredRSASize:
2476: intptr = &options->required_rsa_size;
2477: goto parse_int;
2478:
1.389 djm 2479: case sChannelTimeout:
2480: uvalue = options->num_channel_timeouts;
2481: i = 0;
2482: while ((arg = argv_next(&ac, &av)) != NULL) {
2483: /* Allow "none" only in first position */
2484: if (strcasecmp(arg, "none") == 0) {
2485: if (i > 0 || ac > 0) {
2486: error("%s line %d: keyword %s \"none\" "
2487: "argument must appear alone.",
2488: filename, linenum, keyword);
2489: goto out;
2490: }
2491: } else if (parse_timeout(arg, NULL, NULL) != 0) {
2492: fatal("%s line %d: invalid channel timeout %s",
2493: filename, linenum, arg);
2494: }
2495: if (!*activep || uvalue != 0)
2496: continue;
2497: opt_array_append(filename, linenum, keyword,
2498: &options->channel_timeouts,
2499: &options->num_channel_timeouts, arg);
2500: }
2501: break;
2502:
1.390 djm 2503: case sUnusedConnectionTimeout:
2504: intptr = &options->unused_connection_timeout;
2505: /* peek at first arg for "none" so we can reuse parse_time */
2506: if (av[0] != NULL && strcasecmp(av[0], "none") == 0) {
2507: (void)argv_next(&ac, &av); /* consume arg */
2508: if (*activep)
2509: *intptr = 0;
2510: break;
2511: }
2512: goto parse_time;
2513:
1.94 markus 2514: case sDeprecated:
1.295 djm 2515: case sIgnore:
1.121 jakob 2516: case sUnsupported:
1.295 djm 2517: do_log2(opcode == sIgnore ?
2518: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2519: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2520: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2521: keyword);
2522: argv_consume(&ac);
1.94 markus 2523: break;
2524:
2525: default:
2526: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2527: filename, linenum, keyword, opcode);
2528: }
2529: /* Check that there is no garbage at end of line. */
2530: if (ac > 0) {
2531: error("%.200s line %d: keyword %s extra arguments "
2532: "at end of line", filename, linenum, keyword);
2533: goto out;
1.94 markus 2534: }
1.380 djm 2535:
2536: /* success */
2537: ret = 0;
2538: out:
2539: argv_free(oav, oac);
2540: return ret;
1.94 markus 2541: }
2542:
1.360 djm 2543: int
2544: process_server_config_line(ServerOptions *options, char *line,
2545: const char *filename, int linenum, int *activep,
2546: struct connection_info *connectinfo, struct include_list *includes)
2547: {
1.365 djm 2548: int inc_flags = 0;
2549:
1.360 djm 2550: return process_server_config_line_depth(options, line, filename,
1.365 djm 2551: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2552: }
2553:
2554:
1.94 markus 2555: /* Reads the server configuration file. */
1.25 markus 2556:
1.94 markus 2557: void
1.338 markus 2558: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2559: {
1.366 markus 2560: struct stat st;
1.331 markus 2561: char *line = NULL, *cp;
2562: size_t linesize = 0;
1.94 markus 2563: FILE *f;
1.388 dtucker 2564: int r;
1.81 stevesk 2565:
1.371 djm 2566: debug2_f("filename %s", filename);
1.134 djm 2567: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2568: perror(filename);
2569: exit(1);
2570: }
1.338 markus 2571: sshbuf_reset(conf);
1.366 markus 2572: /* grow buffer, so realloc is avoided for large config files */
2573: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2574: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2575: fatal_fr(r, "allocate");
1.331 markus 2576: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2577: /*
1.380 djm 2578: * Strip whitespace
1.135 deraadt 2579: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2580: * line numbers later for error messages
2581: */
2582: cp = line + strspn(line, " \t\r");
1.338 markus 2583: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2584: fatal_fr(r, "sshbuf_put");
1.134 djm 2585: }
1.331 markus 2586: free(line);
1.338 markus 2587: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2588: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2589: fclose(f);
1.371 djm 2590: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2591: }
2592:
2593: void
1.226 dtucker 2594: parse_server_match_config(ServerOptions *options,
1.360 djm 2595: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2596: {
2597: ServerOptions mo;
2598:
2599: initialize_server_options(&mo);
1.360 djm 2600: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2601: connectinfo, 0);
1.168 dtucker 2602: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2603: }
2604:
1.226 dtucker 2605: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2606: {
2607: char *p;
2608:
2609: while ((p = strsep(&spec, ",")) && *p != '\0') {
2610: if (strncmp(p, "addr=", 5) == 0) {
2611: ci->address = xstrdup(p + 5);
2612: } else if (strncmp(p, "host=", 5) == 0) {
2613: ci->host = xstrdup(p + 5);
2614: } else if (strncmp(p, "user=", 5) == 0) {
2615: ci->user = xstrdup(p + 5);
2616: } else if (strncmp(p, "laddr=", 6) == 0) {
2617: ci->laddress = xstrdup(p + 6);
1.317 djm 2618: } else if (strncmp(p, "rdomain=", 8) == 0) {
2619: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2620: } else if (strncmp(p, "lport=", 6) == 0) {
2621: ci->lport = a2port(p + 6);
2622: if (ci->lport == -1) {
2623: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2624: " specification %s\n", p+6, p);
1.226 dtucker 2625: return -1;
2626: }
2627: } else {
2628: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2629: p);
1.226 dtucker 2630: return -1;
2631: }
2632: }
2633: return 0;
2634: }
2635:
1.401 ! djm 2636: void
! 2637: servconf_merge_subsystems(ServerOptions *dst, ServerOptions *src)
! 2638: {
! 2639: u_int i, j, found;
! 2640:
! 2641: for (i = 0; i < src->num_subsystems; i++) {
! 2642: found = 0;
! 2643: for (j = 0; j < dst->num_subsystems; j++) {
! 2644: if (strcmp(src->subsystem_name[i],
! 2645: dst->subsystem_name[j]) == 0) {
! 2646: found = 1;
! 2647: break;
! 2648: }
! 2649: }
! 2650: if (found) {
! 2651: debug_f("override \"%s\"", dst->subsystem_name[j]);
! 2652: free(dst->subsystem_command[j]);
! 2653: free(dst->subsystem_args[j]);
! 2654: dst->subsystem_command[j] =
! 2655: xstrdup(src->subsystem_command[i]);
! 2656: dst->subsystem_args[j] =
! 2657: xstrdup(src->subsystem_args[i]);
! 2658: continue;
! 2659: }
! 2660: debug_f("add \"%s\"", src->subsystem_name[i]);
! 2661: dst->subsystem_name = xrecallocarray(
! 2662: dst->subsystem_name, dst->num_subsystems,
! 2663: dst->num_subsystems + 1, sizeof(dst->subsystem_name));
! 2664: dst->subsystem_command = xrecallocarray(
! 2665: dst->subsystem_command, dst->num_subsystems,
! 2666: dst->num_subsystems + 1, sizeof(dst->subsystem_command));
! 2667: dst->subsystem_args = xrecallocarray(
! 2668: dst->subsystem_args, dst->num_subsystems,
! 2669: dst->num_subsystems + 1, sizeof(dst->subsystem_args));
! 2670: j = dst->num_subsystems++;
! 2671: dst->subsystem_name[j] = xstrdup(src->subsystem_name[i]);
! 2672: dst->subsystem_command[j] = xstrdup(src->subsystem_command[i]);
! 2673: dst->subsystem_args[j] = xstrdup(src->subsystem_args[i]);
! 2674: }
! 2675: }
! 2676:
1.168 dtucker 2677: /*
2678: * Copy any supported values that are set.
2679: *
1.195 jj 2680: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2681: * array values that are not used pre-authentication, because any that we
1.328 djm 2682: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2683: */
1.153 dtucker 2684: void
1.168 dtucker 2685: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2686: {
1.247 djm 2687: #define M_CP_INTOPT(n) do {\
2688: if (src->n != -1) \
2689: dst->n = src->n; \
2690: } while (0)
2691:
1.168 dtucker 2692: M_CP_INTOPT(password_authentication);
2693: M_CP_INTOPT(gss_authentication);
2694: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2695: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2696: M_CP_INTOPT(kerberos_authentication);
2697: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2698: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2699: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2700: M_CP_INTOPT(permit_root_login);
1.188 djm 2701: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2702: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2703:
2704: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2705: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2706: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2707: M_CP_INTOPT(disable_forwarding);
1.309 djm 2708: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2709: M_CP_INTOPT(permit_tun);
1.251 millert 2710: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2711: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2712: M_CP_INTOPT(x11_display_offset);
2713: M_CP_INTOPT(x11_forwarding);
2714: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2715: M_CP_INTOPT(permit_tty);
1.250 djm 2716: M_CP_INTOPT(permit_user_rc);
1.180 djm 2717: M_CP_INTOPT(max_sessions);
1.184 dtucker 2718: M_CP_INTOPT(max_authtries);
1.300 markus 2719: M_CP_INTOPT(client_alive_count_max);
2720: M_CP_INTOPT(client_alive_interval);
1.213 djm 2721: M_CP_INTOPT(ip_qos_interactive);
2722: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2723: M_CP_INTOPT(rekey_limit);
2724: M_CP_INTOPT(rekey_interval);
1.308 djm 2725: M_CP_INTOPT(log_level);
1.386 djm 2726: M_CP_INTOPT(required_rsa_size);
1.390 djm 2727: M_CP_INTOPT(unused_connection_timeout);
1.289 djm 2728:
2729: /*
2730: * The bind_mask is a mode_t that may be unsigned, so we can't use
2731: * M_CP_INTOPT - it does a signed comparison that causes compiler
2732: * warnings.
2733: */
1.290 dtucker 2734: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2735: dst->fwd_opts.streamlocal_bind_mask =
2736: src->fwd_opts.streamlocal_bind_mask;
2737: }
1.247 djm 2738:
2739: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2740: #define M_CP_STROPT(n) do {\
2741: if (src->n != NULL && dst->n != src->n) { \
2742: free(dst->n); \
2743: dst->n = src->n; \
2744: } \
2745: } while(0)
1.314 djm 2746: #define M_CP_STRARRAYOPT(s, num_s) do {\
2747: u_int i; \
2748: if (src->num_s != 0) { \
2749: for (i = 0; i < dst->num_s; i++) \
2750: free(dst->s[i]); \
2751: free(dst->s); \
2752: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2753: for (i = 0; i < src->num_s; i++) \
2754: dst->s[i] = xstrdup(src->s[i]); \
2755: dst->num_s = src->num_s; \
1.312 djm 2756: } \
2757: } while(0)
1.168 dtucker 2758:
1.218 djm 2759: /* See comment in servconf.h */
2760: COPY_MATCH_STRING_OPTS();
1.282 djm 2761:
2762: /* Arguments that accept '+...' need to be expanded */
2763: assemble_algorithms(dst);
1.216 djm 2764:
1.217 dtucker 2765: /*
2766: * The only things that should be below this point are string options
2767: * which are only used after authentication.
2768: */
1.168 dtucker 2769: if (preauth)
2770: return;
1.219 djm 2771:
1.283 djm 2772: /* These options may be "none" to clear a global setting */
1.168 dtucker 2773: M_CP_STROPT(adm_forced_command);
1.283 djm 2774: if (option_clear_or_none(dst->adm_forced_command)) {
2775: free(dst->adm_forced_command);
2776: dst->adm_forced_command = NULL;
2777: }
1.176 djm 2778: M_CP_STROPT(chroot_directory);
1.283 djm 2779: if (option_clear_or_none(dst->chroot_directory)) {
2780: free(dst->chroot_directory);
2781: dst->chroot_directory = NULL;
2782: }
1.401 ! djm 2783:
! 2784: /* Subsystems require merging. */
! 2785: servconf_merge_subsystems(dst, src);
1.153 dtucker 2786: }
1.168 dtucker 2787:
2788: #undef M_CP_INTOPT
2789: #undef M_CP_STROPT
1.219 djm 2790: #undef M_CP_STRARRAYOPT
1.153 dtucker 2791:
1.360 djm 2792: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2793: static void
1.360 djm 2794: parse_server_config_depth(ServerOptions *options, const char *filename,
2795: struct sshbuf *conf, struct include_list *includes,
2796: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2797: {
1.360 djm 2798: int linenum, bad_options = 0;
1.136 dtucker 2799: char *cp, *obuf, *cbuf;
1.134 djm 2800:
1.360 djm 2801: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2802: fatal("Too many recursive configuration includes");
2803:
1.371 djm 2804: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2805: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2806:
1.287 djm 2807: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2808: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2809: linenum = 1;
1.140 deraadt 2810: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2811: if (process_server_config_line_depth(options, cp,
1.365 djm 2812: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2813: depth, includes) != 0)
1.94 markus 2814: bad_options++;
1.1 deraadt 2815: }
1.239 djm 2816: free(obuf);
1.78 stevesk 2817: if (bad_options > 0)
2818: fatal("%s: terminating, %d bad configuration options",
2819: filename, bad_options);
1.360 djm 2820: }
2821:
2822: void
2823: parse_server_config(ServerOptions *options, const char *filename,
2824: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2825: struct connection_info *connectinfo, int reexec)
1.360 djm 2826: {
2827: int active = connectinfo ? 0 : 1;
2828: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2829: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2830: if (!reexec)
2831: process_queued_listen_addrs(options);
1.182 dtucker 2832: }
2833:
2834: static const char *
1.221 djm 2835: fmt_multistate_int(int val, const struct multistate *m)
2836: {
2837: u_int i;
2838:
2839: for (i = 0; m[i].key != NULL; i++) {
2840: if (m[i].value == val)
2841: return m[i].key;
2842: }
2843: return "UNKNOWN";
2844: }
2845:
2846: static const char *
1.182 dtucker 2847: fmt_intarg(ServerOpCodes code, int val)
2848: {
1.221 djm 2849: if (val == -1)
2850: return "unset";
2851: switch (code) {
2852: case sAddressFamily:
2853: return fmt_multistate_int(val, multistate_addressfamily);
2854: case sPermitRootLogin:
2855: return fmt_multistate_int(val, multistate_permitrootlogin);
2856: case sGatewayPorts:
2857: return fmt_multistate_int(val, multistate_gatewayports);
2858: case sCompression:
2859: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2860: case sAllowTcpForwarding:
2861: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2862: case sAllowStreamLocalForwarding:
2863: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2864: case sIgnoreRhosts:
2865: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2866: case sFingerprintHash:
2867: return ssh_digest_alg_name(val);
1.221 djm 2868: default:
2869: switch (val) {
2870: case 0:
2871: return "no";
2872: case 1:
2873: return "yes";
2874: default:
2875: return "UNKNOWN";
2876: }
1.182 dtucker 2877: }
2878: }
2879:
2880: static void
2881: dump_cfg_int(ServerOpCodes code, int val)
2882: {
1.390 djm 2883: if (code == sUnusedConnectionTimeout && val == 0) {
2884: printf("%s none\n", lookup_opcode_name(code));
2885: return;
2886: }
1.182 dtucker 2887: printf("%s %d\n", lookup_opcode_name(code), val);
2888: }
2889:
2890: static void
1.263 dtucker 2891: dump_cfg_oct(ServerOpCodes code, int val)
2892: {
2893: printf("%s 0%o\n", lookup_opcode_name(code), val);
2894: }
2895:
2896: static void
1.182 dtucker 2897: dump_cfg_fmtint(ServerOpCodes code, int val)
2898: {
2899: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2900: }
2901:
2902: static void
2903: dump_cfg_string(ServerOpCodes code, const char *val)
2904: {
1.257 djm 2905: printf("%s %s\n", lookup_opcode_name(code),
2906: val == NULL ? "none" : val);
1.182 dtucker 2907: }
2908:
2909: static void
2910: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2911: {
2912: u_int i;
2913:
2914: for (i = 0; i < count; i++)
1.219 djm 2915: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2916: }
2917:
2918: static void
2919: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2920: {
2921: u_int i;
2922:
1.391 djm 2923: switch (code) {
2924: case sAuthenticationMethods:
2925: case sChannelTimeout:
2926: break;
2927: default:
2928: if (count <= 0)
2929: return;
2930: break;
2931: }
2932:
1.219 djm 2933: printf("%s", lookup_opcode_name(code));
2934: for (i = 0; i < count; i++)
2935: printf(" %s", vals[i]);
1.291 djm 2936: if (code == sAuthenticationMethods && count == 0)
2937: printf(" any");
1.389 djm 2938: else if (code == sChannelTimeout && count == 0)
2939: printf(" none");
1.219 djm 2940: printf("\n");
1.182 dtucker 2941: }
2942:
1.315 djm 2943: static char *
2944: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2945: {
1.315 djm 2946: int r;
1.182 dtucker 2947: struct addrinfo *ai;
1.315 djm 2948: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2949: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2950:
1.263 dtucker 2951: /*
2952: * ListenAddress must be after Port. add_one_listen_addr pushes
2953: * addresses onto a stack, so to maintain ordering we need to
2954: * print these in reverse order.
2955: */
1.315 djm 2956: for (ai = la->addrs; ai; ai = ai->ai_next) {
2957: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2958: sizeof(addr), port, sizeof(port),
2959: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2960: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2961: continue;
2962: }
2963: laddr2 = laddr1;
2964: if (ai->ai_family == AF_INET6) {
2965: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2966: addr, port,
2967: la->rdomain == NULL ? "" : " rdomain ",
2968: la->rdomain == NULL ? "" : la->rdomain,
2969: laddr2);
1.182 dtucker 2970: } else {
1.315 djm 2971: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2972: addr, port,
2973: la->rdomain == NULL ? "" : " rdomain ",
2974: la->rdomain == NULL ? "" : la->rdomain,
2975: laddr2);
1.182 dtucker 2976: }
1.315 djm 2977: free(laddr2);
2978: }
2979: return laddr1;
2980: }
2981:
2982: void
2983: dump_config(ServerOptions *o)
2984: {
2985: char *s;
2986: u_int i;
2987:
2988: /* these are usually at the top of the config */
2989: for (i = 0; i < o->num_ports; i++)
2990: printf("port %d\n", o->ports[i]);
2991: dump_cfg_fmtint(sAddressFamily, o->address_family);
2992:
2993: for (i = 0; i < o->num_listen_addrs; i++) {
2994: s = format_listen_addrs(&o->listen_addrs[i]);
2995: printf("%s", s);
2996: free(s);
1.182 dtucker 2997: }
2998:
2999: /* integer arguments */
3000: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
3001: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
3002: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 3003: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 3004: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
3005: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 3006: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 3007: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.390 djm 3008: dump_cfg_int(sUnusedConnectionTimeout, o->unused_connection_timeout);
1.182 dtucker 3009:
3010: /* formatted integer arguments */
3011: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
3012: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
3013: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
3014: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
3015: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
3016: o->hostbased_uses_name_from_packet_only);
3017: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 3018: #ifdef KRB5
1.182 dtucker 3019: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
3020: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
3021: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
3022: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 3023: #endif
3024: #ifdef GSSAPI
1.182 dtucker 3025: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
3026: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 3027: #endif
1.182 dtucker 3028: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
3029: dump_cfg_fmtint(sKbdInteractiveAuthentication,
3030: o->kbd_interactive_authentication);
3031: dump_cfg_fmtint(sPrintMotd, o->print_motd);
3032: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
3033: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
3034: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 3035: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 3036: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 3037: dump_cfg_fmtint(sStrictModes, o->strict_modes);
3038: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
3039: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
3040: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 3041: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 3042: dump_cfg_fmtint(sUseDNS, o->use_dns);
3043: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 3044: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 3045: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 3046: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 3047: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 3048: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 3049: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 3050:
3051: /* string arguments */
3052: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 3053: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 3054: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 3055: dump_cfg_string(sCiphers, o->ciphers);
3056: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 3057: dump_cfg_string(sBanner, o->banner);
3058: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 3059: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 3060: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
3061: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 3062: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 3063: dump_cfg_string(sAuthorizedPrincipalsFile,
3064: o->authorized_principals_file);
1.261 dtucker 3065: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
3066: ? "none" : o->version_addendum);
1.231 djm 3067: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
3068: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 3069: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
3070: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 3071: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 3072: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
3073: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 3074: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 3075: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 3076: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 3077: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 3078:
3079: /* string arguments requiring a lookup */
3080: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
3081: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
3082:
3083: /* string array arguments */
1.219 djm 3084: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
3085: o->authorized_keys_files);
1.182 dtucker 3086: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 3087: o->host_key_files);
1.261 dtucker 3088: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 3089: o->host_cert_files);
1.182 dtucker 3090: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
3091: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
3092: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3093: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3094: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3095: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3096: dump_cfg_strarray_oneline(sAuthenticationMethods,
3097: o->num_auth_methods, o->auth_methods);
1.370 djm 3098: dump_cfg_strarray_oneline(sLogVerbose,
3099: o->num_log_verbose, o->log_verbose);
1.389 djm 3100: dump_cfg_strarray_oneline(sChannelTimeout,
3101: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3102:
3103: /* other arguments */
3104: for (i = 0; i < o->num_subsystems; i++)
3105: printf("subsystem %s %s\n", o->subsystem_name[i],
3106: o->subsystem_args[i]);
3107:
3108: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3109: o->max_startups_rate, o->max_startups);
1.372 dtucker 3110: printf("persourcemaxstartups ");
3111: if (o->per_source_max_startups == INT_MAX)
3112: printf("none\n");
3113: else
3114: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3115: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3116: o->per_source_masklen_ipv6);
1.182 dtucker 3117:
1.318 djm 3118: s = NULL;
3119: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3120: if (tunmode_desc[i].val == o->permit_tun) {
3121: s = tunmode_desc[i].text;
3122: break;
3123: }
1.318 djm 3124: }
1.182 dtucker 3125: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3126:
1.214 stevesk 3127: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3128: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3129:
1.284 dtucker 3130: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3131: o->rekey_interval);
1.182 dtucker 3132:
1.310 djm 3133: printf("permitopen");
3134: if (o->num_permitted_opens == 0)
3135: printf(" any");
3136: else {
3137: for (i = 0; i < o->num_permitted_opens; i++)
3138: printf(" %s", o->permitted_opens[i]);
1.329 djm 3139: }
3140: printf("\n");
1.330 djm 3141: printf("permitlisten");
3142: if (o->num_permitted_listens == 0)
1.329 djm 3143: printf(" any");
3144: else {
1.330 djm 3145: for (i = 0; i < o->num_permitted_listens; i++)
3146: printf(" %s", o->permitted_listens[i]);
1.310 djm 3147: }
3148: printf("\n");
1.334 djm 3149:
1.367 djm 3150: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3151: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3152: } else {
3153: printf("permituserenvironment %s\n",
1.367 djm 3154: o->permit_user_env_allowlist);
1.334 djm 3155: }
3156:
1.354 djm 3157: printf("pubkeyauthoptions");
3158: if (o->pubkey_auth_options == 0)
3159: printf(" none");
3160: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3161: printf(" touch-required");
1.368 djm 3162: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3163: printf(" verify-required");
1.354 djm 3164: printf("\n");
1.1 deraadt 3165: }
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