Annotation of src/usr.bin/ssh/servconf.c, Revision 1.389
1.226 dtucker 1:
1.389 ! djm 2: /* $OpenBSD: servconf.c,v 1.388 2022/11/07 10:05:39 dtucker Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.315 djm 17: #include <sys/sysctl.h>
1.366 markus 18: #include <sys/stat.h>
1.154 stevesk 19:
1.213 djm 20: #include <netinet/in.h>
21: #include <netinet/ip.h>
1.315 djm 22: #include <net/route.h>
1.213 djm 23:
1.235 dtucker 24: #include <ctype.h>
1.360 djm 25: #include <glob.h>
1.154 stevesk 26: #include <netdb.h>
1.165 dtucker 27: #include <pwd.h>
1.162 stevesk 28: #include <stdio.h>
1.161 stevesk 29: #include <stdlib.h>
1.160 stevesk 30: #include <string.h>
1.164 deraadt 31: #include <signal.h>
1.155 stevesk 32: #include <unistd.h>
1.259 deraadt 33: #include <limits.h>
1.164 deraadt 34: #include <stdarg.h>
1.182 dtucker 35: #include <errno.h>
1.236 dtucker 36: #include <util.h>
1.1 deraadt 37:
1.164 deraadt 38: #include "xmalloc.h"
1.1 deraadt 39: #include "ssh.h"
1.62 markus 40: #include "log.h"
1.338 markus 41: #include "sshbuf.h"
1.251 millert 42: #include "misc.h"
1.1 deraadt 43: #include "servconf.h"
1.33 markus 44: #include "compat.h"
1.60 markus 45: #include "pathnames.h"
1.62 markus 46: #include "cipher.h"
1.339 markus 47: #include "sshkey.h"
1.66 markus 48: #include "kex.h"
49: #include "mac.h"
1.153 dtucker 50: #include "match.h"
1.156 dtucker 51: #include "channels.h"
1.165 dtucker 52: #include "groupaccess.h"
1.226 dtucker 53: #include "canohost.h"
54: #include "packet.h"
1.338 markus 55: #include "ssherr.h"
1.232 djm 56: #include "hostfile.h"
57: #include "auth.h"
1.252 djm 58: #include "myproposal.h"
1.256 djm 59: #include "digest.h"
1.345 djm 60:
1.315 djm 61: static void add_listen_addr(ServerOptions *, const char *,
62: const char *, int);
63: static void add_one_listen_addr(ServerOptions *, const char *,
64: const char *, int);
1.364 djm 65: static void parse_server_config_depth(ServerOptions *options,
66: const char *filename, struct sshbuf *conf, struct include_list *includes,
1.360 djm 67: struct connection_info *connectinfo, int flags, int *activep, int depth);
1.29 markus 68:
1.102 provos 69: /* Use of privilege separation or not */
70: extern int use_privsep;
1.338 markus 71: extern struct sshbuf *cfg;
1.62 markus 72:
1.1 deraadt 73: /* Initializes the server options to their default values. */
74:
1.34 markus 75: void
1.25 markus 76: initialize_server_options(ServerOptions *options)
1.1 deraadt 77: {
1.25 markus 78: memset(options, 0, sizeof(*options));
1.29 markus 79: options->num_ports = 0;
80: options->ports_from_cmdline = 0;
1.266 dtucker 81: options->queued_listen_addrs = NULL;
82: options->num_queued_listens = 0;
1.29 markus 83: options->listen_addrs = NULL;
1.315 djm 84: options->num_listen_addrs = 0;
1.138 djm 85: options->address_family = -1;
1.316 djm 86: options->routing_domain = NULL;
1.54 markus 87: options->num_host_key_files = 0;
1.203 djm 88: options->num_host_cert_files = 0;
1.240 markus 89: options->host_key_agent = NULL;
1.36 markus 90: options->pid_file = NULL;
1.25 markus 91: options->login_grace_time = -1;
1.279 chris 92: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 93: options->ignore_rhosts = -1;
94: options->ignore_user_known_hosts = -1;
95: options->print_motd = -1;
1.72 stevesk 96: options->print_lastlog = -1;
1.25 markus 97: options->x11_forwarding = -1;
98: options->x11_display_offset = -1;
1.99 stevesk 99: options->x11_use_localhost = -1;
1.244 djm 100: options->permit_tty = -1;
1.250 djm 101: options->permit_user_rc = -1;
1.42 markus 102: options->xauth_location = NULL;
1.25 markus 103: options->strict_modes = -1;
1.129 markus 104: options->tcp_keep_alive = -1;
1.101 markus 105: options->log_facility = SYSLOG_FACILITY_NOT_SET;
106: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.370 djm 107: options->num_log_verbose = 0;
108: options->log_verbose = NULL;
1.75 markus 109: options->hostbased_authentication = -1;
110: options->hostbased_uses_name_from_packet_only = -1;
1.375 dtucker 111: options->hostbased_accepted_algos = NULL;
1.276 markus 112: options->hostkeyalgorithms = NULL;
1.54 markus 113: options->pubkey_authentication = -1;
1.354 djm 114: options->pubkey_auth_options = -1;
1.374 dtucker 115: options->pubkey_accepted_algos = NULL;
1.25 markus 116: options->kerberos_authentication = -1;
117: options->kerberos_or_local_passwd = -1;
118: options->kerberos_ticket_cleanup = -1;
1.130 jakob 119: options->kerberos_get_afs_token = -1;
1.125 markus 120: options->gss_authentication=-1;
121: options->gss_cleanup_creds = -1;
1.271 djm 122: options->gss_strict_acceptor = -1;
1.25 markus 123: options->password_authentication = -1;
1.52 markus 124: options->kbd_interactive_authentication = -1;
1.25 markus 125: options->permit_empty_passwd = -1;
1.113 markus 126: options->permit_user_env = -1;
1.367 djm 127: options->permit_user_env_allowlist = NULL;
1.111 markus 128: options->compression = -1;
1.235 dtucker 129: options->rekey_limit = -1;
130: options->rekey_interval = -1;
1.53 markus 131: options->allow_tcp_forwarding = -1;
1.251 millert 132: options->allow_streamlocal_forwarding = -1;
1.178 pyr 133: options->allow_agent_forwarding = -1;
1.25 markus 134: options->num_allow_users = 0;
135: options->num_deny_users = 0;
136: options->num_allow_groups = 0;
137: options->num_deny_groups = 0;
1.33 markus 138: options->ciphers = NULL;
1.66 markus 139: options->macs = NULL;
1.211 djm 140: options->kex_algorithms = NULL;
1.341 djm 141: options->ca_sign_algorithms = NULL;
1.251 millert 142: options->fwd_opts.gateway_ports = -1;
143: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
144: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 145: options->num_subsystems = 0;
1.50 markus 146: options->max_startups_begin = -1;
147: options->max_startups_rate = -1;
1.46 markus 148: options->max_startups = -1;
1.372 dtucker 149: options->per_source_max_startups = -1;
150: options->per_source_masklen_ipv4 = -1;
151: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 152: options->max_authtries = -1;
1.180 djm 153: options->max_sessions = -1;
1.57 markus 154: options->banner = NULL;
1.122 markus 155: options->use_dns = -1;
1.77 beck 156: options->client_alive_interval = -1;
157: options->client_alive_count_max = -1;
1.219 djm 158: options->num_authkeys_files = 0;
1.131 djm 159: options->num_accept_env = 0;
1.332 djm 160: options->num_setenv = 0;
1.145 reyk 161: options->permit_tun = -1;
1.310 djm 162: options->permitted_opens = NULL;
1.330 djm 163: options->permitted_listens = NULL;
1.158 dtucker 164: options->adm_forced_command = NULL;
1.176 djm 165: options->chroot_directory = NULL;
1.231 djm 166: options->authorized_keys_command = NULL;
167: options->authorized_keys_command_user = NULL;
1.204 djm 168: options->revoked_keys_file = NULL;
1.355 djm 169: options->sk_provider = NULL;
1.204 djm 170: options->trusted_user_ca_keys = NULL;
1.208 djm 171: options->authorized_principals_file = NULL;
1.270 djm 172: options->authorized_principals_command = NULL;
173: options->authorized_principals_command_user = NULL;
1.213 djm 174: options->ip_qos_interactive = -1;
175: options->ip_qos_bulk = -1;
1.225 djm 176: options->version_addendum = NULL;
1.256 djm 177: options->fingerprint_hash = -1;
1.301 djm 178: options->disable_forwarding = -1;
1.309 djm 179: options->expose_userauth_info = -1;
1.386 djm 180: options->required_rsa_size = -1;
1.389 ! djm 181: options->channel_timeouts = NULL;
! 182: options->num_channel_timeouts = 0;
1.1 deraadt 183: }
184:
1.257 djm 185: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
186: static int
187: option_clear_or_none(const char *o)
188: {
189: return o == NULL || strcasecmp(o, "none") == 0;
190: }
191:
1.282 djm 192: static void
193: assemble_algorithms(ServerOptions *o)
194: {
1.341 djm 195: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 196: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 197: int r;
1.335 djm 198:
199: all_cipher = cipher_alg_list(',', 0);
200: all_mac = mac_alg_list(',');
201: all_kex = kex_alg_list(',');
202: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 203: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 204: /* remove unsupported algos from default lists */
1.367 djm 205: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
206: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
207: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
208: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
209: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 210: #define ASSEMBLE(what, defaults, all) \
211: do { \
212: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 213: fatal_fr(r, "%s", #what); \
1.340 djm 214: } while (0)
1.358 dtucker 215: ASSEMBLE(ciphers, def_cipher, all_cipher);
216: ASSEMBLE(macs, def_mac, all_mac);
217: ASSEMBLE(kex_algorithms, def_kex, all_kex);
218: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 219: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 220: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 221: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 222: #undef ASSEMBLE
1.335 djm 223: free(all_cipher);
224: free(all_mac);
225: free(all_kex);
226: free(all_key);
1.341 djm 227: free(all_sig);
1.358 dtucker 228: free(def_cipher);
229: free(def_mac);
230: free(def_kex);
231: free(def_key);
232: free(def_sig);
1.282 djm 233: }
234:
1.314 djm 235: void
236: servconf_add_hostkey(const char *file, const int line,
1.344 djm 237: ServerOptions *options, const char *path, int userprovided)
1.314 djm 238: {
239: char *apath = derelativise_path(path);
240:
1.376 markus 241: opt_array_append2(file, line, "HostKey",
1.344 djm 242: &options->host_key_files, &options->host_key_file_userprovided,
243: &options->num_host_key_files, apath, userprovided);
1.314 djm 244: free(apath);
245: }
246:
247: void
248: servconf_add_hostcert(const char *file, const int line,
249: ServerOptions *options, const char *path)
250: {
251: char *apath = derelativise_path(path);
252:
1.376 markus 253: opt_array_append(file, line, "HostCertificate",
1.314 djm 254: &options->host_cert_files, &options->num_host_cert_files, apath);
255: free(apath);
256: }
257:
1.34 markus 258: void
1.25 markus 259: fill_default_server_options(ServerOptions *options)
1.1 deraadt 260: {
1.314 djm 261: u_int i;
1.257 djm 262:
1.54 markus 263: if (options->num_host_key_files == 0) {
1.293 naddy 264: /* fill default hostkeys */
1.314 djm 265: servconf_add_hostkey("[default]", 0, options,
1.344 djm 266: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 267: servconf_add_hostkey("[default]", 0, options,
1.344 djm 268: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 269: servconf_add_hostkey("[default]", 0, options,
1.344 djm 270: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 271: #ifdef WITH_XMSS
1.325 markus 272: servconf_add_hostkey("[default]", 0, options,
1.344 djm 273: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 274: #endif /* WITH_XMSS */
1.54 markus 275: }
1.203 djm 276: /* No certificates by default */
1.29 markus 277: if (options->num_ports == 0)
278: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 279: if (options->address_family == -1)
280: options->address_family = AF_UNSPEC;
1.29 markus 281: if (options->listen_addrs == NULL)
1.315 djm 282: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 283: if (options->pid_file == NULL)
1.257 djm 284: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 285: if (options->moduli_file == NULL)
286: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 287: if (options->login_grace_time == -1)
1.115 stevesk 288: options->login_grace_time = 120;
1.67 markus 289: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 290: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 291: if (options->ignore_rhosts == -1)
1.30 markus 292: options->ignore_rhosts = 1;
1.25 markus 293: if (options->ignore_user_known_hosts == -1)
294: options->ignore_user_known_hosts = 0;
295: if (options->print_motd == -1)
296: options->print_motd = 1;
1.72 stevesk 297: if (options->print_lastlog == -1)
298: options->print_lastlog = 1;
1.25 markus 299: if (options->x11_forwarding == -1)
1.30 markus 300: options->x11_forwarding = 0;
1.25 markus 301: if (options->x11_display_offset == -1)
1.30 markus 302: options->x11_display_offset = 10;
1.99 stevesk 303: if (options->x11_use_localhost == -1)
304: options->x11_use_localhost = 1;
1.42 markus 305: if (options->xauth_location == NULL)
1.257 djm 306: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 307: if (options->permit_tty == -1)
308: options->permit_tty = 1;
1.250 djm 309: if (options->permit_user_rc == -1)
310: options->permit_user_rc = 1;
1.25 markus 311: if (options->strict_modes == -1)
312: options->strict_modes = 1;
1.129 markus 313: if (options->tcp_keep_alive == -1)
314: options->tcp_keep_alive = 1;
1.101 markus 315: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 316: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 317: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 318: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 319: if (options->hostbased_authentication == -1)
320: options->hostbased_authentication = 0;
321: if (options->hostbased_uses_name_from_packet_only == -1)
322: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 323: if (options->pubkey_authentication == -1)
324: options->pubkey_authentication = 1;
1.354 djm 325: if (options->pubkey_auth_options == -1)
326: options->pubkey_auth_options = 0;
1.25 markus 327: if (options->kerberos_authentication == -1)
1.107 markus 328: options->kerberos_authentication = 0;
1.25 markus 329: if (options->kerberos_or_local_passwd == -1)
330: options->kerberos_or_local_passwd = 1;
331: if (options->kerberos_ticket_cleanup == -1)
332: options->kerberos_ticket_cleanup = 1;
1.130 jakob 333: if (options->kerberos_get_afs_token == -1)
334: options->kerberos_get_afs_token = 0;
1.125 markus 335: if (options->gss_authentication == -1)
336: options->gss_authentication = 0;
337: if (options->gss_cleanup_creds == -1)
338: options->gss_cleanup_creds = 1;
1.271 djm 339: if (options->gss_strict_acceptor == -1)
1.302 djm 340: options->gss_strict_acceptor = 1;
1.25 markus 341: if (options->password_authentication == -1)
342: options->password_authentication = 1;
1.52 markus 343: if (options->kbd_interactive_authentication == -1)
1.381 dtucker 344: options->kbd_interactive_authentication = 1;
1.25 markus 345: if (options->permit_empty_passwd == -1)
1.30 markus 346: options->permit_empty_passwd = 0;
1.334 djm 347: if (options->permit_user_env == -1) {
1.113 markus 348: options->permit_user_env = 0;
1.367 djm 349: options->permit_user_env_allowlist = NULL;
1.334 djm 350: }
1.111 markus 351: if (options->compression == -1)
1.359 dtucker 352: #ifdef WITH_ZLIB
1.337 sf 353: options->compression = COMP_DELAYED;
1.359 dtucker 354: #else
355: options->compression = COMP_NONE;
356: #endif
357:
1.235 dtucker 358: if (options->rekey_limit == -1)
359: options->rekey_limit = 0;
360: if (options->rekey_interval == -1)
361: options->rekey_interval = 0;
1.53 markus 362: if (options->allow_tcp_forwarding == -1)
1.233 djm 363: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 364: if (options->allow_streamlocal_forwarding == -1)
365: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 366: if (options->allow_agent_forwarding == -1)
367: options->allow_agent_forwarding = 1;
1.251 millert 368: if (options->fwd_opts.gateway_ports == -1)
369: options->fwd_opts.gateway_ports = 0;
1.46 markus 370: if (options->max_startups == -1)
1.234 dtucker 371: options->max_startups = 100;
1.50 markus 372: if (options->max_startups_rate == -1)
1.234 dtucker 373: options->max_startups_rate = 30; /* 30% */
1.50 markus 374: if (options->max_startups_begin == -1)
1.234 dtucker 375: options->max_startups_begin = 10;
1.372 dtucker 376: if (options->per_source_max_startups == -1)
377: options->per_source_max_startups = INT_MAX;
378: if (options->per_source_masklen_ipv4 == -1)
379: options->per_source_masklen_ipv4 = 32;
380: if (options->per_source_masklen_ipv6 == -1)
381: options->per_source_masklen_ipv6 = 128;
1.133 dtucker 382: if (options->max_authtries == -1)
383: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 384: if (options->max_sessions == -1)
385: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 386: if (options->use_dns == -1)
1.260 deraadt 387: options->use_dns = 0;
1.77 beck 388: if (options->client_alive_interval == -1)
1.95 deraadt 389: options->client_alive_interval = 0;
1.77 beck 390: if (options->client_alive_count_max == -1)
391: options->client_alive_count_max = 3;
1.219 djm 392: if (options->num_authkeys_files == 0) {
1.376 markus 393: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 394: &options->authorized_keys_files,
395: &options->num_authkeys_files,
396: _PATH_SSH_USER_PERMITTED_KEYS);
1.376 markus 397: opt_array_append("[default]", 0, "AuthorizedKeysFiles",
1.314 djm 398: &options->authorized_keys_files,
399: &options->num_authkeys_files,
400: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 401: }
1.145 reyk 402: if (options->permit_tun == -1)
1.146 reyk 403: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 404: if (options->ip_qos_interactive == -1)
1.327 job 405: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 406: if (options->ip_qos_bulk == -1)
1.327 job 407: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 408: if (options->version_addendum == NULL)
409: options->version_addendum = xstrdup("");
1.251 millert 410: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
411: options->fwd_opts.streamlocal_bind_mask = 0177;
412: if (options->fwd_opts.streamlocal_bind_unlink == -1)
413: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 414: if (options->fingerprint_hash == -1)
415: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 416: if (options->disable_forwarding == -1)
417: options->disable_forwarding = 0;
1.309 djm 418: if (options->expose_userauth_info == -1)
419: options->expose_userauth_info = 0;
1.355 djm 420: if (options->sk_provider == NULL)
421: options->sk_provider = xstrdup("internal");
1.386 djm 422: if (options->required_rsa_size == -1)
423: options->required_rsa_size = SSH_RSA_MINIMUM_MODULUS_SIZE;
1.277 djm 424:
1.282 djm 425: assemble_algorithms(options);
1.277 djm 426:
1.285 djm 427: /* Turn privilege separation and sandboxing on by default */
1.102 provos 428: if (use_privsep == -1)
1.285 djm 429: use_privsep = PRIVSEP_ON;
1.257 djm 430:
431: #define CLEAR_ON_NONE(v) \
432: do { \
433: if (option_clear_or_none(v)) { \
434: free(v); \
435: v = NULL; \
436: } \
437: } while(0)
1.389 ! djm 438: #define CLEAR_ON_NONE_ARRAY(v, nv, none) \
! 439: do { \
! 440: if (options->nv == 1 && \
! 441: strcasecmp(options->v[0], none) == 0) { \
! 442: free(options->v[0]); \
! 443: free(options->v); \
! 444: options->v = NULL; \
! 445: options->nv = 0; \
! 446: } \
! 447: } while (0)
1.257 djm 448: CLEAR_ON_NONE(options->pid_file);
449: CLEAR_ON_NONE(options->xauth_location);
450: CLEAR_ON_NONE(options->banner);
451: CLEAR_ON_NONE(options->trusted_user_ca_keys);
452: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 453: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 454: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 455: CLEAR_ON_NONE(options->adm_forced_command);
456: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 457: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 458: CLEAR_ON_NONE(options->host_key_agent);
1.389 ! djm 459:
1.257 djm 460: for (i = 0; i < options->num_host_key_files; i++)
461: CLEAR_ON_NONE(options->host_key_files[i]);
462: for (i = 0; i < options->num_host_cert_files; i++)
463: CLEAR_ON_NONE(options->host_cert_files[i]);
1.389 ! djm 464:
! 465: CLEAR_ON_NONE_ARRAY(channel_timeouts, num_channel_timeouts, "none");
! 466: CLEAR_ON_NONE_ARRAY(auth_methods, num_auth_methods, "any");
1.257 djm 467: #undef CLEAR_ON_NONE
1.389 ! djm 468: #undef CLEAR_ON_NONE_ARRAY
1.1 deraadt 469: }
470:
471: /* Keyword tokens. */
1.25 markus 472: typedef enum {
473: sBadOption, /* == unknown option */
1.293 naddy 474: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 475: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 476: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.382 millert 477: sKerberosGetAFSToken, sPasswordAuthentication,
478: sKbdInteractiveAuthentication, sListenAddress, sAddressFamily,
1.72 stevesk 479: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 480: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 481: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 482: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 483: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 484: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 485: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 486: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 487: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 488: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 489: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 490: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 491: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 492: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 493: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 494: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 495: sHostCertificate, sInclude,
1.208 djm 496: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 497: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 498: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 499: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 500: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 501: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 502: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 503: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.389 ! djm 504: sRequiredRSASize, sChannelTimeout,
1.295 djm 505: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 506: } ServerOpCodes;
507:
1.360 djm 508: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
509: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
510: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
511: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 512: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 513:
1.1 deraadt 514: /* Textual representation of the tokens. */
1.25 markus 515: static struct {
516: const char *name;
517: ServerOpCodes opcode;
1.153 dtucker 518: u_int flags;
1.25 markus 519: } keywords[] = {
1.153 dtucker 520: { "port", sPort, SSHCFG_GLOBAL },
521: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
522: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 523: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 524: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 525: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 526: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 527: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 528: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 529: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 530: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 531: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 532: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 533: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 534: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 535: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 536: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 537: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 538: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 539: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 540: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 541: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 542: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 543: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 544: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 545: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 546: #ifdef KRB5
1.168 dtucker 547: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 548: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
549: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
550: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 551: #else
1.168 dtucker 552: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 553: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
554: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
555: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 556: #endif
1.153 dtucker 557: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
558: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 559: #ifdef GSSAPI
1.168 dtucker 560: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 561: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 562: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 563: #else
1.168 dtucker 564: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 565: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 566: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 567: #endif
1.168 dtucker 568: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
569: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.381 dtucker 570: { "challengeresponseauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
571: { "skeyauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL }, /* alias */
1.153 dtucker 572: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
573: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
574: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
575: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
576: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 577: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 578: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 579: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
580: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
581: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 582: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
583: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 584: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 585: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 586: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 587: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 588: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 589: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
590: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
591: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 592: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 593: { "allowusers", sAllowUsers, SSHCFG_ALL },
594: { "denyusers", sDenyUsers, SSHCFG_ALL },
595: { "allowgroups", sAllowGroups, SSHCFG_ALL },
596: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 597: { "ciphers", sCiphers, SSHCFG_GLOBAL },
598: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 599: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 600: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
601: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
602: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 603: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
604: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 605: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 606: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 607: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 608: { "usedns", sUseDNS, SSHCFG_GLOBAL },
609: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
610: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 611: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
612: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 613: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 614: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 615: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 616: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 617: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 618: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 619: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 620: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 621: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 622: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 623: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 624: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 625: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 626: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 627: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
628: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 629: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 630: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 631: { "include", sInclude, SSHCFG_ALL },
1.213 djm 632: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 633: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
634: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 635: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
636: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 637: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 638: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 639: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
640: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
641: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 642: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 643: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 644: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 645: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 646: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 647: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.386 djm 648: { "requiredrsasize", sRequiredRSASize, SSHCFG_ALL },
1.389 ! djm 649: { "channeltimeout", sChannelTimeout, SSHCFG_ALL },
1.153 dtucker 650: { NULL, sBadOption, 0 }
1.1 deraadt 651: };
652:
1.182 dtucker 653: static struct {
654: int val;
655: char *text;
656: } tunmode_desc[] = {
657: { SSH_TUNMODE_NO, "no" },
658: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
659: { SSH_TUNMODE_ETHERNET, "ethernet" },
660: { SSH_TUNMODE_YES, "yes" },
661: { -1, NULL }
662: };
663:
1.329 djm 664: /* Returns an opcode name from its number */
665:
666: static const char *
667: lookup_opcode_name(ServerOpCodes code)
668: {
669: u_int i;
670:
671: for (i = 0; keywords[i].name != NULL; i++)
672: if (keywords[i].opcode == code)
673: return(keywords[i].name);
674: return "UNKNOWN";
675: }
676:
677:
1.27 markus 678: /*
1.73 stevesk 679: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 680: */
1.1 deraadt 681:
1.34 markus 682: static ServerOpCodes
1.25 markus 683: parse_token(const char *cp, const char *filename,
1.153 dtucker 684: int linenum, u_int *flags)
1.1 deraadt 685: {
1.55 markus 686: u_int i;
1.1 deraadt 687:
1.25 markus 688: for (i = 0; keywords[i].name; i++)
1.153 dtucker 689: if (strcasecmp(cp, keywords[i].name) == 0) {
690: *flags = keywords[i].flags;
1.25 markus 691: return keywords[i].opcode;
1.153 dtucker 692: }
1.25 markus 693:
1.78 stevesk 694: error("%s: line %d: Bad configuration option: %s",
695: filename, linenum, cp);
1.25 markus 696: return sBadOption;
1.1 deraadt 697: }
698:
1.202 djm 699: char *
700: derelativise_path(const char *path)
701: {
1.259 deraadt 702: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 703:
1.257 djm 704: if (strcasecmp(path, "none") == 0)
705: return xstrdup("none");
1.202 djm 706: expanded = tilde_expand_filename(path, getuid());
1.343 djm 707: if (path_absolute(expanded))
1.202 djm 708: return expanded;
1.207 djm 709: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 710: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 711: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 712: free(expanded);
1.202 djm 713: return ret;
714: }
715:
1.84 itojun 716: static void
1.315 djm 717: add_listen_addr(ServerOptions *options, const char *addr,
718: const char *rdomain, int port)
1.74 stevesk 719: {
1.142 djm 720: u_int i;
1.74 stevesk 721:
1.315 djm 722: if (port > 0)
723: add_one_listen_addr(options, addr, rdomain, port);
724: else {
725: for (i = 0; i < options->num_ports; i++) {
726: add_one_listen_addr(options, addr, rdomain,
727: options->ports[i]);
728: }
729: }
1.74 stevesk 730: }
731:
1.84 itojun 732: static void
1.315 djm 733: add_one_listen_addr(ServerOptions *options, const char *addr,
734: const char *rdomain, int port)
1.29 markus 735: {
736: struct addrinfo hints, *ai, *aitop;
737: char strport[NI_MAXSERV];
738: int gaierr;
1.315 djm 739: u_int i;
740:
741: /* Find listen_addrs entry for this rdomain */
742: for (i = 0; i < options->num_listen_addrs; i++) {
743: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
744: break;
745: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
746: continue;
747: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
748: break;
749: }
750: if (i >= options->num_listen_addrs) {
751: /* No entry for this rdomain; allocate one */
752: if (i >= INT_MAX)
1.371 djm 753: fatal_f("too many listen addresses");
1.315 djm 754: options->listen_addrs = xrecallocarray(options->listen_addrs,
755: options->num_listen_addrs, options->num_listen_addrs + 1,
756: sizeof(*options->listen_addrs));
757: i = options->num_listen_addrs++;
758: if (rdomain != NULL)
759: options->listen_addrs[i].rdomain = xstrdup(rdomain);
760: }
761: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 762:
1.74 stevesk 763: memset(&hints, 0, sizeof(hints));
1.138 djm 764: hints.ai_family = options->address_family;
1.74 stevesk 765: hints.ai_socktype = SOCK_STREAM;
766: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 767: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 768: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
769: fatal("bad addr or host: %s (%s)",
770: addr ? addr : "<NULL>",
1.173 dtucker 771: ssh_gai_strerror(gaierr));
1.74 stevesk 772: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
773: ;
1.315 djm 774: ai->ai_next = options->listen_addrs[i].addrs;
775: options->listen_addrs[i].addrs = aitop;
776: }
777:
778: /* Returns nonzero if the routing domain name is valid */
779: static int
780: valid_rdomain(const char *name)
781: {
782: const char *errstr;
783: long long num;
784: struct rt_tableinfo info;
785: int mib[6];
786: size_t miblen = sizeof(mib);
787:
788: if (name == NULL)
789: return 1;
790:
791: num = strtonum(name, 0, 255, &errstr);
792: if (errstr != NULL)
793: return 0;
794:
795: /* Check whether the table actually exists */
796: memset(mib, 0, sizeof(mib));
797: mib[0] = CTL_NET;
798: mib[1] = PF_ROUTE;
799: mib[4] = NET_RT_TABLE;
800: mib[5] = (int)num;
801: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
802: return 0;
803:
804: return 1;
1.29 markus 805: }
806:
1.266 dtucker 807: /*
808: * Queue a ListenAddress to be processed once we have all of the Ports
809: * and AddressFamily options.
810: */
811: static void
1.315 djm 812: queue_listen_addr(ServerOptions *options, const char *addr,
813: const char *rdomain, int port)
1.266 dtucker 814: {
1.315 djm 815: struct queued_listenaddr *qla;
816:
817: options->queued_listen_addrs = xrecallocarray(
818: options->queued_listen_addrs,
819: options->num_queued_listens, options->num_queued_listens + 1,
820: sizeof(*options->queued_listen_addrs));
821: qla = &options->queued_listen_addrs[options->num_queued_listens++];
822: qla->addr = xstrdup(addr);
823: qla->port = port;
824: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 825: }
826:
827: /*
828: * Process queued (text) ListenAddress entries.
829: */
830: static void
831: process_queued_listen_addrs(ServerOptions *options)
832: {
833: u_int i;
1.315 djm 834: struct queued_listenaddr *qla;
1.266 dtucker 835:
836: if (options->num_ports == 0)
837: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
838: if (options->address_family == -1)
839: options->address_family = AF_UNSPEC;
840:
841: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 842: qla = &options->queued_listen_addrs[i];
843: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
844: free(qla->addr);
845: free(qla->rdomain);
1.266 dtucker 846: }
847: free(options->queued_listen_addrs);
848: options->queued_listen_addrs = NULL;
849: options->num_queued_listens = 0;
850: }
851:
1.310 djm 852: /*
1.329 djm 853: * Inform channels layer of permitopen options for a single forwarding
854: * direction (local/remote).
1.310 djm 855: */
1.329 djm 856: static void
857: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
858: char **opens, u_int num_opens)
1.310 djm 859: {
860: u_int i;
861: int port;
1.383 dtucker 862: char *host, *arg, *oarg;
1.329 djm 863: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
864: const char *what = lookup_opcode_name(opcode);
1.310 djm 865:
1.329 djm 866: channel_clear_permission(ssh, FORWARD_ADM, where);
867: if (num_opens == 0)
1.310 djm 868: return; /* permit any */
869:
870: /* handle keywords: "any" / "none" */
1.329 djm 871: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 872: return;
1.329 djm 873: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
874: channel_disable_admin(ssh, where);
1.310 djm 875: return;
876: }
877: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 878: for (i = 0; i < num_opens; i++) {
879: oarg = arg = xstrdup(opens[i]);
1.383 dtucker 880: host = hpdelim(&arg);
881: if (host == NULL)
1.371 djm 882: fatal_f("missing host in %s", what);
1.310 djm 883: host = cleanhostname(host);
884: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.371 djm 885: fatal_f("bad port number in %s", what);
1.310 djm 886: /* Send it to channels layer */
1.329 djm 887: channel_add_permission(ssh, FORWARD_ADM,
888: where, host, port);
1.310 djm 889: free(oarg);
890: }
891: }
892:
1.329 djm 893: /*
894: * Inform channels layer of permitopen options from configuration.
895: */
896: void
897: process_permitopen(struct ssh *ssh, ServerOptions *options)
898: {
899: process_permitopen_list(ssh, sPermitOpen,
900: options->permitted_opens, options->num_permitted_opens);
1.330 djm 901: process_permitopen_list(ssh, sPermitListen,
902: options->permitted_listens,
903: options->num_permitted_listens);
1.329 djm 904: }
905:
1.389 ! djm 906: /* Parse a ChannelTimeout clause "pattern=interval" */
! 907: static int
! 908: parse_timeout(const char *s, char **typep, u_int *secsp)
! 909: {
! 910: char *cp, *sdup;
! 911: int secs;
! 912:
! 913: if (typep != NULL)
! 914: *typep = NULL;
! 915: if (secsp != NULL)
! 916: *secsp = 0;
! 917: if (s == NULL)
! 918: return -1;
! 919: sdup = xstrdup(s);
! 920:
! 921: if ((cp = strchr(sdup, '=')) == NULL || cp == sdup) {
! 922: free(sdup);
! 923: return -1;
! 924: }
! 925: *cp++ = '\0';
! 926: if ((secs = convtime(cp)) < 0) {
! 927: free(sdup);
! 928: return -1;
! 929: }
! 930: /* success */
! 931: if (typep != NULL)
! 932: *typep = xstrdup(sdup);
! 933: if (secsp != NULL)
! 934: *secsp = (u_int)secs;
! 935: free(sdup);
! 936: return 0;
! 937: }
! 938:
! 939: void
! 940: process_channel_timeouts(struct ssh *ssh, ServerOptions *options)
! 941: {
! 942: u_int i, secs;
! 943: char *type;
! 944:
! 945: debug3_f("setting %u timeouts", options->num_channel_timeouts);
! 946: channel_clear_timeouts(ssh);
! 947: for (i = 0; i < options->num_channel_timeouts; i++) {
! 948: if (parse_timeout(options->channel_timeouts[i],
! 949: &type, &secs) != 0) {
! 950: fatal_f("internal error: bad timeout %s",
! 951: options->channel_timeouts[i]);
! 952: }
! 953: channel_add_timeout(ssh, type, secs);
! 954: free(type);
! 955: }
! 956: }
! 957:
1.226 dtucker 958: struct connection_info *
1.346 djm 959: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 960: {
961: static struct connection_info ci;
962:
1.346 djm 963: if (ssh == NULL || !populate)
1.226 dtucker 964: return &ci;
1.286 djm 965: ci.host = auth_get_canonical_hostname(ssh, use_dns);
966: ci.address = ssh_remote_ipaddr(ssh);
967: ci.laddress = ssh_local_ipaddr(ssh);
968: ci.lport = ssh_local_port(ssh);
1.317 djm 969: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 970: return &ci;
971: }
972:
1.153 dtucker 973: /*
974: * The strategy for the Match blocks is that the config file is parsed twice.
975: *
976: * The first time is at startup. activep is initialized to 1 and the
977: * directives in the global context are processed and acted on. Hitting a
978: * Match directive unsets activep and the directives inside the block are
979: * checked for syntax only.
980: *
981: * The second time is after a connection has been established but before
982: * authentication. activep is initialized to 2 and global config directives
983: * are ignored since they have already been processed. If the criteria in a
984: * Match block is met, activep is set and the subsequent directives
985: * processed and actioned until EOF or another Match block unsets it. Any
986: * options set are copied into the main server config.
987: *
988: * Potential additions/improvements:
1.295 djm 989: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 990: *
991: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
992: * Match Address 192.168.0.*
993: * Tag trusted
994: * Match Group wheel
995: * Tag trusted
996: * Match Tag trusted
997: * AllowTcpForwarding yes
998: * GatewayPorts clientspecified
999: * [...]
1000: *
1001: * - Add a PermittedChannelRequests directive
1002: * Match Group shell
1003: * PermittedChannelRequests session,forwarded-tcpip
1004: */
1005:
1006: static int
1.165 dtucker 1007: match_cfg_line_group(const char *grps, int line, const char *user)
1008: {
1009: int result = 0;
1010: struct passwd *pw;
1011:
1012: if (user == NULL)
1013: goto out;
1014:
1015: if ((pw = getpwnam(user)) == NULL) {
1016: debug("Can't match group at line %d because user %.100s does "
1017: "not exist", line, user);
1018: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
1019: debug("Can't Match group because user %.100s not in any group "
1020: "at line %d", user, line);
1.186 djm 1021: } else if (ga_match_pattern_list(grps) != 1) {
1022: debug("user %.100s does not match group list %.100s at line %d",
1023: user, grps, line);
1.165 dtucker 1024: } else {
1.186 djm 1025: debug("user %.100s matched group list %.100s at line %d", user,
1026: grps, line);
1.165 dtucker 1027: result = 1;
1028: }
1029: out:
1030: ga_free();
1031: return result;
1032: }
1033:
1.319 dtucker 1034: static void
1035: match_test_missing_fatal(const char *criteria, const char *attrib)
1036: {
1037: fatal("'Match %s' in configuration but '%s' not in connection "
1038: "test specification.", criteria, attrib);
1039: }
1040:
1.226 dtucker 1041: /*
1.230 dtucker 1042: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 1043: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 1044: * not match.
1.226 dtucker 1045: */
1.165 dtucker 1046: static int
1.226 dtucker 1047: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 1048: {
1.243 dtucker 1049: int result = 1, attributes = 0, port;
1.153 dtucker 1050: char *arg, *attrib, *cp = *condition;
1051:
1.226 dtucker 1052: if (ci == NULL)
1.153 dtucker 1053: debug3("checking syntax for 'Match %s'", cp);
1054: else
1.226 dtucker 1055: debug3("checking match for '%s' user %s host %s addr %s "
1056: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
1057: ci->host ? ci->host : "(null)",
1058: ci->address ? ci->address : "(null)",
1059: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 1060:
1061: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 djm 1062: /* Terminate on comment */
1063: if (*attrib == '#') {
1064: cp = NULL; /* mark all arguments consumed */
1065: break;
1066: }
1067: arg = NULL;
1.243 dtucker 1068: attributes++;
1.380 djm 1069: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1070: if (strcasecmp(attrib, "all") == 0) {
1.380 djm 1071: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
1072: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1073: error("'all' cannot be combined with other "
1074: "Match attributes");
1075: return -1;
1076: }
1.380 djm 1077: if (arg != NULL && *arg == '#')
1078: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1079: *condition = cp;
1080: return 1;
1081: }
1.380 djm 1082: /* All other criteria require an argument */
1083: if ((arg = strdelim(&cp)) == NULL ||
1084: *arg == '\0' || *arg == '#') {
1.153 dtucker 1085: error("Missing Match criteria for %s", attrib);
1086: return -1;
1087: }
1088: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1089: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1090: result = 0;
1091: continue;
1092: }
1.319 dtucker 1093: if (ci->user == NULL)
1094: match_test_missing_fatal("User", "user");
1.349 dtucker 1095: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1096: result = 0;
1097: else
1098: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1099: "line %d", ci->user, arg, line);
1.165 dtucker 1100: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1101: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1102: result = 0;
1103: continue;
1104: }
1.319 dtucker 1105: if (ci->user == NULL)
1106: match_test_missing_fatal("Group", "user");
1.226 dtucker 1107: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1108: case -1:
1109: return -1;
1110: case 0:
1111: result = 0;
1112: }
1.153 dtucker 1113: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1114: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1115: result = 0;
1116: continue;
1117: }
1.319 dtucker 1118: if (ci->host == NULL)
1119: match_test_missing_fatal("Host", "host");
1.269 djm 1120: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1121: result = 0;
1122: else
1123: debug("connection from %.100s matched 'Host "
1.226 dtucker 1124: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1125: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1126: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1127: if (addr_match_list(NULL, arg) != 0)
1128: fatal("Invalid Match address argument "
1129: "'%s' at line %d", arg, line);
1.226 dtucker 1130: result = 0;
1131: continue;
1132: }
1.319 dtucker 1133: if (ci->address == NULL)
1134: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1135: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1136: case 1:
1137: debug("connection from %.100s matched 'Address "
1.226 dtucker 1138: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1139: break;
1140: case 0:
1.183 djm 1141: case -1:
1.153 dtucker 1142: result = 0;
1.181 djm 1143: break;
1.183 djm 1144: case -2:
1.181 djm 1145: return -1;
1.153 dtucker 1146: }
1.226 dtucker 1147: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1148: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1149: if (addr_match_list(NULL, arg) != 0)
1150: fatal("Invalid Match localaddress "
1151: "argument '%s' at line %d", arg,
1152: line);
1.226 dtucker 1153: result = 0;
1154: continue;
1155: }
1.319 dtucker 1156: if (ci->laddress == NULL)
1157: match_test_missing_fatal("LocalAddress",
1158: "laddr");
1.226 dtucker 1159: switch (addr_match_list(ci->laddress, arg)) {
1160: case 1:
1161: debug("connection from %.100s matched "
1162: "'LocalAddress %.100s' at line %d",
1163: ci->laddress, arg, line);
1164: break;
1165: case 0:
1166: case -1:
1167: result = 0;
1168: break;
1169: case -2:
1170: return -1;
1171: }
1172: } else if (strcasecmp(attrib, "localport") == 0) {
1173: if ((port = a2port(arg)) == -1) {
1174: error("Invalid LocalPort '%s' on Match line",
1175: arg);
1176: return -1;
1177: }
1.351 dtucker 1178: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1179: result = 0;
1180: continue;
1181: }
1.319 dtucker 1182: if (ci->lport == 0)
1183: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1184: /* TODO support port lists */
1185: if (port == ci->lport)
1186: debug("connection from %.100s matched "
1187: "'LocalPort %d' at line %d",
1188: ci->laddress, port, line);
1189: else
1190: result = 0;
1.317 djm 1191: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1192: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1193: result = 0;
1194: continue;
1195: }
1.351 dtucker 1196: if (ci->rdomain == NULL)
1197: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1198: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1199: result = 0;
1200: else
1201: debug("user %.100s matched 'RDomain %.100s' at "
1202: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1203: } else {
1204: error("Unsupported Match attribute %s", attrib);
1205: return -1;
1206: }
1.243 dtucker 1207: }
1208: if (attributes == 0) {
1209: error("One or more attributes required for Match");
1210: return -1;
1.153 dtucker 1211: }
1.226 dtucker 1212: if (ci != NULL)
1.153 dtucker 1213: debug3("match %sfound", result ? "" : "not ");
1214: *condition = cp;
1215: return result;
1216: }
1217:
1.158 dtucker 1218: #define WHITESPACE " \t\r\n"
1219:
1.220 djm 1220: /* Multistate option parsing */
1221: struct multistate {
1222: char *key;
1223: int value;
1224: };
1.320 djm 1225: static const struct multistate multistate_flag[] = {
1226: { "yes", 1 },
1227: { "no", 0 },
1228: { NULL, -1 }
1229: };
1.363 djm 1230: static const struct multistate multistate_ignore_rhosts[] = {
1231: { "yes", IGNORE_RHOSTS_YES },
1232: { "no", IGNORE_RHOSTS_NO },
1233: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1234: { NULL, -1 }
1235: };
1.220 djm 1236: static const struct multistate multistate_addressfamily[] = {
1237: { "inet", AF_INET },
1238: { "inet6", AF_INET6 },
1239: { "any", AF_UNSPEC },
1240: { NULL, -1 }
1241: };
1242: static const struct multistate multistate_permitrootlogin[] = {
1243: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1244: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1245: { "forced-commands-only", PERMIT_FORCED_ONLY },
1246: { "yes", PERMIT_YES },
1247: { "no", PERMIT_NO },
1248: { NULL, -1 }
1249: };
1250: static const struct multistate multistate_compression[] = {
1.359 dtucker 1251: #ifdef WITH_ZLIB
1.337 sf 1252: { "yes", COMP_DELAYED },
1253: { "delayed", COMP_DELAYED },
1.359 dtucker 1254: #endif
1.220 djm 1255: { "no", COMP_NONE },
1256: { NULL, -1 }
1257: };
1258: static const struct multistate multistate_gatewayports[] = {
1259: { "clientspecified", 2 },
1260: { "yes", 1 },
1261: { "no", 0 },
1.222 djm 1262: { NULL, -1 }
1263: };
1.233 djm 1264: static const struct multistate multistate_tcpfwd[] = {
1265: { "yes", FORWARD_ALLOW },
1266: { "all", FORWARD_ALLOW },
1267: { "no", FORWARD_DENY },
1268: { "remote", FORWARD_REMOTE },
1269: { "local", FORWARD_LOCAL },
1270: { NULL, -1 }
1271: };
1.220 djm 1272:
1.360 djm 1273: static int
1274: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1275: const char *filename, int linenum, int *activep,
1.365 djm 1276: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1277: struct include_list *includes)
1.1 deraadt 1278: {
1.383 dtucker 1279: char *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.360 djm 1280: int cmdline = 0, *intptr, value, value2, n, port, oactive, r, found;
1.174 dtucker 1281: SyslogFacility *log_facility_ptr;
1282: LogLevel *log_level_ptr;
1.25 markus 1283: ServerOpCodes opcode;
1.329 djm 1284: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1285: size_t len;
1.237 dtucker 1286: long long val64;
1.220 djm 1287: const struct multistate *multistate_ptr;
1.322 dtucker 1288: const char *errstr;
1.360 djm 1289: struct include_item *item;
1290: glob_t gbuf;
1.380 djm 1291: char **oav = NULL, **av;
1292: int oac = 0, ac;
1293: int ret = -1;
1.303 djm 1294:
1295: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1296: if ((len = strlen(line)) == 0)
1297: return 0;
1298: for (len--; len > 0; len--) {
1299: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1300: break;
1301: line[len] = '\0';
1302: }
1.25 markus 1303:
1.380 djm 1304: str = line;
1305: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1306: return 0;
1.94 markus 1307: /* Ignore leading whitespace */
1.380 djm 1308: if (*keyword == '\0')
1309: keyword = strdelim(&str);
1310: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1311: return 0;
1.380 djm 1312: if (str == NULL || *str == '\0') {
1313: error("%s line %d: no argument after keyword \"%s\"",
1314: filename, linenum, keyword);
1315: return -1;
1316: }
1.94 markus 1317: intptr = NULL;
1318: charptr = NULL;
1.380 djm 1319: opcode = parse_token(keyword, filename, linenum, &flags);
1320:
1321: if (argv_split(str, &oac, &oav, 1) != 0) {
1322: error("%s line %d: invalid quotes", filename, linenum);
1323: return -1;
1324: }
1325: ac = oac;
1326: av = oav;
1.153 dtucker 1327:
1328: if (activep == NULL) { /* We are processing a command line directive */
1329: cmdline = 1;
1330: activep = &cmdline;
1331: }
1.360 djm 1332: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 djm 1333: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1334: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1335: if (connectinfo == NULL) {
1.153 dtucker 1336: fatal("%s line %d: Directive '%s' is not allowed "
1.380 djm 1337: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1338: } else { /* this is a directive we have already processed */
1.380 djm 1339: ret = 0;
1340: goto out;
1.153 dtucker 1341: }
1342: }
1343:
1.94 markus 1344: switch (opcode) {
1345: case sBadOption:
1.380 djm 1346: goto out;
1.94 markus 1347: case sPort:
1348: /* ignore ports from configfile if cmdline specifies ports */
1.380 djm 1349: if (options->ports_from_cmdline) {
1350: argv_consume(&ac);
1351: break;
1352: }
1.94 markus 1353: if (options->num_ports >= MAX_PORTS)
1354: fatal("%s line %d: too many ports.",
1355: filename, linenum);
1.380 djm 1356: arg = argv_next(&ac, &av);
1.94 markus 1357: if (!arg || *arg == '\0')
1358: fatal("%s line %d: missing port number.",
1359: filename, linenum);
1360: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1361: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1362: fatal("%s line %d: Badly formatted port number.",
1363: filename, linenum);
1364: break;
1.29 markus 1365:
1.94 markus 1366: case sLoginGraceTime:
1367: intptr = &options->login_grace_time;
1.180 djm 1368: parse_time:
1.380 djm 1369: arg = argv_next(&ac, &av);
1.94 markus 1370: if (!arg || *arg == '\0')
1371: fatal("%s line %d: missing time value.",
1372: filename, linenum);
1373: if ((value = convtime(arg)) == -1)
1374: fatal("%s line %d: invalid time value.",
1375: filename, linenum);
1.268 djm 1376: if (*activep && *intptr == -1)
1.94 markus 1377: *intptr = value;
1378: break;
1379:
1380: case sListenAddress:
1.380 djm 1381: arg = argv_next(&ac, &av);
1.139 djm 1382: if (arg == NULL || *arg == '\0')
1383: fatal("%s line %d: missing address",
1.94 markus 1384: filename, linenum);
1.144 dtucker 1385: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1386: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1387: && strchr(p+1, ':') != NULL) {
1.315 djm 1388: port = 0;
1389: p = arg;
1390: } else {
1.347 dtucker 1391: arg2 = NULL;
1.383 dtucker 1392: p = hpdelim(&arg);
1393: if (p == NULL)
1.315 djm 1394: fatal("%s line %d: bad address:port usage",
1395: filename, linenum);
1396: p = cleanhostname(p);
1397: if (arg == NULL)
1398: port = 0;
1399: else if ((port = a2port(arg)) <= 0)
1400: fatal("%s line %d: bad port number",
1401: filename, linenum);
1402: }
1403: /* Optional routing table */
1404: arg2 = NULL;
1.380 djm 1405: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1406: if (strcmp(arg, "rdomain") != 0 ||
1.380 djm 1407: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1408: fatal("%s line %d: bad ListenAddress syntax",
1409: filename, linenum);
1410: if (!valid_rdomain(arg2))
1411: fatal("%s line %d: bad routing domain",
1412: filename, linenum);
1.144 dtucker 1413: }
1.315 djm 1414: queue_listen_addr(options, p, arg2, port);
1.25 markus 1415:
1.138 djm 1416: break;
1417:
1418: case sAddressFamily:
1.220 djm 1419: intptr = &options->address_family;
1420: multistate_ptr = multistate_addressfamily;
1421: parse_multistate:
1.380 djm 1422: arg = argv_next(&ac, &av);
1.141 markus 1423: if (!arg || *arg == '\0')
1.220 djm 1424: fatal("%s line %d: missing argument.",
1.141 markus 1425: filename, linenum);
1.220 djm 1426: value = -1;
1427: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1428: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1429: value = multistate_ptr[i].value;
1430: break;
1431: }
1432: }
1433: if (value == -1)
1434: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1435: filename, linenum, arg);
1.220 djm 1436: if (*activep && *intptr == -1)
1.138 djm 1437: *intptr = value;
1.94 markus 1438: break;
1439:
1440: case sHostKeyFile:
1.380 djm 1441: arg = argv_next(&ac, &av);
1.94 markus 1442: if (!arg || *arg == '\0')
1443: fatal("%s line %d: missing file name.",
1444: filename, linenum);
1.344 djm 1445: if (*activep) {
1446: servconf_add_hostkey(filename, linenum,
1447: options, arg, 1);
1448: }
1.94 markus 1449: break;
1.76 stevesk 1450:
1.240 markus 1451: case sHostKeyAgent:
1452: charptr = &options->host_key_agent;
1.380 djm 1453: arg = argv_next(&ac, &av);
1.240 markus 1454: if (!arg || *arg == '\0')
1455: fatal("%s line %d: missing socket name.",
1456: filename, linenum);
1457: if (*activep && *charptr == NULL)
1458: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1459: xstrdup(arg) : derelativise_path(arg);
1460: break;
1461:
1.203 djm 1462: case sHostCertificate:
1.380 djm 1463: arg = argv_next(&ac, &av);
1.314 djm 1464: if (!arg || *arg == '\0')
1465: fatal("%s line %d: missing file name.",
1466: filename, linenum);
1467: if (*activep)
1468: servconf_add_hostcert(filename, linenum, options, arg);
1469: break;
1.203 djm 1470:
1.94 markus 1471: case sPidFile:
1472: charptr = &options->pid_file;
1.314 djm 1473: parse_filename:
1.380 djm 1474: arg = argv_next(&ac, &av);
1.314 djm 1475: if (!arg || *arg == '\0')
1476: fatal("%s line %d: missing file name.",
1477: filename, linenum);
1478: if (*activep && *charptr == NULL) {
1479: *charptr = derelativise_path(arg);
1480: /* increase optional counter */
1481: if (intptr != NULL)
1482: *intptr = *intptr + 1;
1483: }
1484: break;
1.25 markus 1485:
1.378 dtucker 1486: case sModuliFile:
1487: charptr = &options->moduli_file;
1488: goto parse_filename;
1489:
1.94 markus 1490: case sPermitRootLogin:
1491: intptr = &options->permit_root_login;
1.220 djm 1492: multistate_ptr = multistate_permitrootlogin;
1493: goto parse_multistate;
1.36 markus 1494:
1.94 markus 1495: case sIgnoreRhosts:
1496: intptr = &options->ignore_rhosts;
1.363 djm 1497: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1498: goto parse_multistate;
1.94 markus 1499:
1500: case sIgnoreUserKnownHosts:
1501: intptr = &options->ignore_user_known_hosts;
1.363 djm 1502: parse_flag:
1503: multistate_ptr = multistate_flag;
1504: goto parse_multistate;
1.94 markus 1505:
1506: case sHostbasedAuthentication:
1507: intptr = &options->hostbased_authentication;
1508: goto parse_flag;
1509:
1510: case sHostbasedUsesNameFromPacketOnly:
1511: intptr = &options->hostbased_uses_name_from_packet_only;
1512: goto parse_flag;
1513:
1.375 dtucker 1514: case sHostbasedAcceptedAlgorithms:
1515: charptr = &options->hostbased_accepted_algos;
1.374 dtucker 1516: parse_pubkey_algos:
1.380 djm 1517: arg = argv_next(&ac, &av);
1.258 djm 1518: if (!arg || *arg == '\0')
1519: fatal("%s line %d: Missing argument.",
1520: filename, linenum);
1.304 djm 1521: if (*arg != '-' &&
1.352 naddy 1522: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1523: arg + 1 : arg, 1))
1.258 djm 1524: fatal("%s line %d: Bad key types '%s'.",
1525: filename, linenum, arg ? arg : "<NONE>");
1526: if (*activep && *charptr == NULL)
1527: *charptr = xstrdup(arg);
1528: break;
1529:
1.276 markus 1530: case sHostKeyAlgorithms:
1531: charptr = &options->hostkeyalgorithms;
1.374 dtucker 1532: goto parse_pubkey_algos;
1.276 markus 1533:
1.341 djm 1534: case sCASignatureAlgorithms:
1535: charptr = &options->ca_sign_algorithms;
1.374 dtucker 1536: goto parse_pubkey_algos;
1.341 djm 1537:
1.94 markus 1538: case sPubkeyAuthentication:
1539: intptr = &options->pubkey_authentication;
1540: goto parse_flag;
1.119 jakob 1541:
1.374 dtucker 1542: case sPubkeyAcceptedAlgorithms:
1543: charptr = &options->pubkey_accepted_algos;
1544: goto parse_pubkey_algos;
1.258 djm 1545:
1.354 djm 1546: case sPubkeyAuthOptions:
1547: intptr = &options->pubkey_auth_options;
1548: value = 0;
1.380 djm 1549: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1550: if (strcasecmp(arg, "none") == 0)
1551: continue;
1552: if (strcasecmp(arg, "touch-required") == 0)
1553: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1554: else if (strcasecmp(arg, "verify-required") == 0)
1555: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1556: else {
1.380 djm 1557: error("%s line %d: unsupported %s option %s",
1558: filename, linenum, keyword, arg);
1559: goto out;
1.354 djm 1560: }
1561: }
1562: if (*activep && *intptr == -1)
1563: *intptr = value;
1564: break;
1565:
1.94 markus 1566: case sKerberosAuthentication:
1567: intptr = &options->kerberos_authentication;
1568: goto parse_flag;
1569:
1570: case sKerberosOrLocalPasswd:
1571: intptr = &options->kerberos_or_local_passwd;
1572: goto parse_flag;
1573:
1574: case sKerberosTicketCleanup:
1575: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1576: goto parse_flag;
1577:
1578: case sKerberosGetAFSToken:
1579: intptr = &options->kerberos_get_afs_token;
1.125 markus 1580: goto parse_flag;
1581:
1582: case sGssAuthentication:
1583: intptr = &options->gss_authentication;
1584: goto parse_flag;
1585:
1586: case sGssCleanupCreds:
1587: intptr = &options->gss_cleanup_creds;
1.271 djm 1588: goto parse_flag;
1589:
1590: case sGssStrictAcceptor:
1591: intptr = &options->gss_strict_acceptor;
1.94 markus 1592: goto parse_flag;
1593:
1594: case sPasswordAuthentication:
1595: intptr = &options->password_authentication;
1596: goto parse_flag;
1597:
1598: case sKbdInteractiveAuthentication:
1599: intptr = &options->kbd_interactive_authentication;
1600: goto parse_flag;
1601:
1602: case sPrintMotd:
1603: intptr = &options->print_motd;
1604: goto parse_flag;
1605:
1606: case sPrintLastLog:
1607: intptr = &options->print_lastlog;
1608: goto parse_flag;
1609:
1610: case sX11Forwarding:
1611: intptr = &options->x11_forwarding;
1612: goto parse_flag;
1613:
1614: case sX11DisplayOffset:
1615: intptr = &options->x11_display_offset;
1.293 naddy 1616: parse_int:
1.380 djm 1617: arg = argv_next(&ac, &av);
1.322 dtucker 1618: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1619: fatal("%s line %d: %s integer value %s.",
1620: filename, linenum, keyword, errstr);
1.293 naddy 1621: if (*activep && *intptr == -1)
1622: *intptr = value;
1623: break;
1.99 stevesk 1624:
1625: case sX11UseLocalhost:
1626: intptr = &options->x11_use_localhost;
1627: goto parse_flag;
1.94 markus 1628:
1629: case sXAuthLocation:
1630: charptr = &options->xauth_location;
1631: goto parse_filename;
1632:
1.244 djm 1633: case sPermitTTY:
1634: intptr = &options->permit_tty;
1635: goto parse_flag;
1636:
1.250 djm 1637: case sPermitUserRC:
1638: intptr = &options->permit_user_rc;
1639: goto parse_flag;
1640:
1.94 markus 1641: case sStrictModes:
1642: intptr = &options->strict_modes;
1643: goto parse_flag;
1644:
1.129 markus 1645: case sTCPKeepAlive:
1646: intptr = &options->tcp_keep_alive;
1.94 markus 1647: goto parse_flag;
1648:
1649: case sEmptyPasswd:
1650: intptr = &options->permit_empty_passwd;
1.113 markus 1651: goto parse_flag;
1652:
1653: case sPermitUserEnvironment:
1654: intptr = &options->permit_user_env;
1.367 djm 1655: charptr = &options->permit_user_env_allowlist;
1.380 djm 1656: arg = argv_next(&ac, &av);
1.334 djm 1657: if (!arg || *arg == '\0')
1.380 djm 1658: fatal("%s line %d: %s missing argument.",
1659: filename, linenum, keyword);
1.334 djm 1660: value = 0;
1661: p = NULL;
1662: if (strcmp(arg, "yes") == 0)
1663: value = 1;
1664: else if (strcmp(arg, "no") == 0)
1665: value = 0;
1666: else {
1667: /* Pattern-list specified */
1668: value = 1;
1669: p = xstrdup(arg);
1670: }
1671: if (*activep && *intptr == -1) {
1672: *intptr = value;
1673: *charptr = p;
1674: p = NULL;
1675: }
1676: free(p);
1677: break;
1.94 markus 1678:
1.111 markus 1679: case sCompression:
1680: intptr = &options->compression;
1.220 djm 1681: multistate_ptr = multistate_compression;
1682: goto parse_multistate;
1.94 markus 1683:
1.235 dtucker 1684: case sRekeyLimit:
1.380 djm 1685: arg = argv_next(&ac, &av);
1.235 dtucker 1686: if (!arg || *arg == '\0')
1.380 djm 1687: fatal("%s line %d: %s missing argument.",
1688: filename, linenum, keyword);
1.235 dtucker 1689: if (strcmp(arg, "default") == 0) {
1690: val64 = 0;
1691: } else {
1.236 dtucker 1692: if (scan_scaled(arg, &val64) == -1)
1.380 djm 1693: fatal("%.200s line %d: Bad %s number '%s': %s",
1694: filename, linenum, keyword,
1695: arg, strerror(errno));
1.235 dtucker 1696: if (val64 != 0 && val64 < 16)
1.380 djm 1697: fatal("%.200s line %d: %s too small",
1698: filename, linenum, keyword);
1.235 dtucker 1699: }
1700: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1701: options->rekey_limit = val64;
1.380 djm 1702: if (ac != 0) { /* optional rekey interval present */
1703: if (strcmp(av[0], "none") == 0) {
1704: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1705: break;
1706: }
1707: intptr = &options->rekey_interval;
1708: goto parse_time;
1709: }
1710: break;
1711:
1.94 markus 1712: case sGatewayPorts:
1.251 millert 1713: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1714: multistate_ptr = multistate_gatewayports;
1715: goto parse_multistate;
1.25 markus 1716:
1.122 markus 1717: case sUseDNS:
1718: intptr = &options->use_dns;
1.94 markus 1719: goto parse_flag;
1.53 markus 1720:
1.94 markus 1721: case sLogFacility:
1.174 dtucker 1722: log_facility_ptr = &options->log_facility;
1.380 djm 1723: arg = argv_next(&ac, &av);
1.94 markus 1724: value = log_facility_number(arg);
1.101 markus 1725: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1726: fatal("%.200s line %d: unsupported log facility '%s'",
1727: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1728: if (*log_facility_ptr == -1)
1729: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1730: break;
1.25 markus 1731:
1.94 markus 1732: case sLogLevel:
1.174 dtucker 1733: log_level_ptr = &options->log_level;
1.380 djm 1734: arg = argv_next(&ac, &av);
1.94 markus 1735: value = log_level_number(arg);
1.101 markus 1736: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1737: fatal("%.200s line %d: unsupported log level '%s'",
1738: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1739: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1740: *log_level_ptr = (LogLevel) value;
1.94 markus 1741: break;
1742:
1.370 djm 1743: case sLogVerbose:
1.380 djm 1744: found = options->num_log_verbose == 0;
1745: i = 0;
1746: while ((arg = argv_next(&ac, &av)) != NULL) {
1747: if (*arg == '\0') {
1748: error("%s line %d: keyword %s empty argument",
1749: filename, linenum, keyword);
1750: goto out;
1751: }
1752: /* Allow "none" only in first position */
1753: if (strcasecmp(arg, "none") == 0) {
1754: if (i > 0 || ac > 0) {
1755: error("%s line %d: keyword %s \"none\" "
1756: "argument must appear alone.",
1757: filename, linenum, keyword);
1758: goto out;
1759: }
1760: }
1761: i++;
1762: if (!found || !*activep)
1.370 djm 1763: continue;
1.380 djm 1764: opt_array_append(filename, linenum, keyword,
1.370 djm 1765: &options->log_verbose, &options->num_log_verbose,
1766: arg);
1767: }
1768: break;
1769:
1.94 markus 1770: case sAllowTcpForwarding:
1771: intptr = &options->allow_tcp_forwarding;
1.233 djm 1772: multistate_ptr = multistate_tcpfwd;
1773: goto parse_multistate;
1.102 provos 1774:
1.251 millert 1775: case sAllowStreamLocalForwarding:
1776: intptr = &options->allow_streamlocal_forwarding;
1777: multistate_ptr = multistate_tcpfwd;
1778: goto parse_multistate;
1779:
1.178 pyr 1780: case sAllowAgentForwarding:
1781: intptr = &options->allow_agent_forwarding;
1782: goto parse_flag;
1783:
1.301 djm 1784: case sDisableForwarding:
1785: intptr = &options->disable_forwarding;
1786: goto parse_flag;
1787:
1.94 markus 1788: case sAllowUsers:
1.380 djm 1789: chararrayptr = &options->allow_users;
1790: uintptr = &options->num_allow_users;
1791: parse_allowdenyusers:
1792: while ((arg = argv_next(&ac, &av)) != NULL) {
1793: if (*arg == '\0' ||
1794: match_user(NULL, NULL, NULL, arg) == -1)
1795: fatal("%s line %d: invalid %s pattern: \"%s\"",
1796: filename, linenum, keyword, arg);
1.227 markus 1797: if (!*activep)
1798: continue;
1.380 djm 1799: opt_array_append(filename, linenum, keyword,
1800: chararrayptr, uintptr, arg);
1.94 markus 1801: }
1802: break;
1.25 markus 1803:
1.94 markus 1804: case sDenyUsers:
1.380 djm 1805: chararrayptr = &options->deny_users;
1806: uintptr = &options->num_deny_users;
1807: goto parse_allowdenyusers;
1.25 markus 1808:
1.94 markus 1809: case sAllowGroups:
1.380 djm 1810: chararrayptr = &options->allow_groups;
1811: uintptr = &options->num_allow_groups;
1812: parse_allowdenygroups:
1813: while ((arg = argv_next(&ac, &av)) != NULL) {
1814: if (*arg == '\0')
1815: fatal("%s line %d: empty %s pattern",
1816: filename, linenum, keyword);
1.227 markus 1817: if (!*activep)
1818: continue;
1.380 djm 1819: opt_array_append(filename, linenum, keyword,
1820: chararrayptr, uintptr, arg);
1.94 markus 1821: }
1822: break;
1.33 markus 1823:
1.94 markus 1824: case sDenyGroups:
1.380 djm 1825: chararrayptr = &options->deny_groups;
1826: uintptr = &options->num_deny_groups;
1827: goto parse_allowdenygroups;
1.66 markus 1828:
1.94 markus 1829: case sCiphers:
1.380 djm 1830: arg = argv_next(&ac, &av);
1.94 markus 1831: if (!arg || *arg == '\0')
1.380 djm 1832: fatal("%s line %d: %s missing argument.",
1833: filename, linenum, keyword);
1.352 naddy 1834: if (*arg != '-' &&
1835: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1836: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1837: filename, linenum, arg ? arg : "<NONE>");
1838: if (options->ciphers == NULL)
1839: options->ciphers = xstrdup(arg);
1840: break;
1.33 markus 1841:
1.94 markus 1842: case sMacs:
1.380 djm 1843: arg = argv_next(&ac, &av);
1.94 markus 1844: if (!arg || *arg == '\0')
1.380 djm 1845: fatal("%s line %d: %s missing argument.",
1846: filename, linenum, keyword);
1.352 naddy 1847: if (*arg != '-' &&
1848: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1849: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1850: filename, linenum, arg ? arg : "<NONE>");
1851: if (options->macs == NULL)
1852: options->macs = xstrdup(arg);
1.211 djm 1853: break;
1854:
1855: case sKexAlgorithms:
1.380 djm 1856: arg = argv_next(&ac, &av);
1.211 djm 1857: if (!arg || *arg == '\0')
1.380 djm 1858: fatal("%s line %d: %s missing argument.",
1859: filename, linenum, keyword);
1.304 djm 1860: if (*arg != '-' &&
1.352 naddy 1861: !kex_names_valid(*arg == '+' || *arg == '^' ?
1862: arg + 1 : arg))
1.211 djm 1863: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1864: filename, linenum, arg ? arg : "<NONE>");
1865: if (options->kex_algorithms == NULL)
1866: options->kex_algorithms = xstrdup(arg);
1.94 markus 1867: break;
1.43 jakob 1868:
1.94 markus 1869: case sSubsystem:
1870: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1871: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1872: filename, linenum);
1.94 markus 1873: }
1.380 djm 1874: arg = argv_next(&ac, &av);
1.94 markus 1875: if (!arg || *arg == '\0')
1.380 djm 1876: fatal("%s line %d: %s missing argument.",
1877: filename, linenum, keyword);
1.153 dtucker 1878: if (!*activep) {
1.380 djm 1879: arg = argv_next(&ac, &av);
1.153 dtucker 1880: break;
1881: }
1.94 markus 1882: for (i = 0; i < options->num_subsystems; i++)
1883: if (strcmp(arg, options->subsystem_name[i]) == 0)
1.380 djm 1884: fatal("%s line %d: Subsystem '%s' "
1885: "already defined.", filename, linenum, arg);
1.94 markus 1886: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 djm 1887: arg = argv_next(&ac, &av);
1.94 markus 1888: if (!arg || *arg == '\0')
1889: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1890: filename, linenum);
1.94 markus 1891: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1892:
1893: /* Collect arguments (separate to executable) */
1894: p = xstrdup(arg);
1895: len = strlen(p) + 1;
1.380 djm 1896: while ((arg = argv_next(&ac, &av)) != NULL) {
1.151 djm 1897: len += 1 + strlen(arg);
1.264 deraadt 1898: p = xreallocarray(p, 1, len);
1.151 djm 1899: strlcat(p, " ", len);
1900: strlcat(p, arg, len);
1901: }
1902: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1903: options->num_subsystems++;
1904: break;
1.46 markus 1905:
1.94 markus 1906: case sMaxStartups:
1.380 djm 1907: arg = argv_next(&ac, &av);
1.94 markus 1908: if (!arg || *arg == '\0')
1.380 djm 1909: fatal("%s line %d: %s missing argument.",
1910: filename, linenum, keyword);
1.94 markus 1911: if ((n = sscanf(arg, "%d:%d:%d",
1912: &options->max_startups_begin,
1913: &options->max_startups_rate,
1914: &options->max_startups)) == 3) {
1915: if (options->max_startups_begin >
1916: options->max_startups ||
1917: options->max_startups_rate > 100 ||
1918: options->max_startups_rate < 1)
1.380 djm 1919: fatal("%s line %d: Invalid %s spec.",
1920: filename, linenum, keyword);
1.94 markus 1921: } else if (n != 1)
1.380 djm 1922: fatal("%s line %d: Invalid %s spec.",
1923: filename, linenum, keyword);
1.94 markus 1924: else
1925: options->max_startups = options->max_startups_begin;
1.387 dtucker 1926: if (options->max_startups <= 0 ||
1927: options->max_startups_begin <= 0)
1928: fatal("%s line %d: Invalid %s spec.",
1929: filename, linenum, keyword);
1.94 markus 1930: break;
1.133 dtucker 1931:
1.372 dtucker 1932: case sPerSourceNetBlockSize:
1.380 djm 1933: arg = argv_next(&ac, &av);
1.372 dtucker 1934: if (!arg || *arg == '\0')
1.380 djm 1935: fatal("%s line %d: %s missing argument.",
1936: filename, linenum, keyword);
1.372 dtucker 1937: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1938: case 2:
1939: if (value2 < 0 || value2 > 128)
1940: n = -1;
1941: /* FALLTHROUGH */
1942: case 1:
1943: if (value < 0 || value > 32)
1944: n = -1;
1945: }
1946: if (n != 1 && n != 2)
1.380 djm 1947: fatal("%s line %d: Invalid %s spec.",
1948: filename, linenum, keyword);
1.372 dtucker 1949: if (*activep) {
1950: options->per_source_masklen_ipv4 = value;
1951: options->per_source_masklen_ipv6 = value2;
1952: }
1953: break;
1954:
1955: case sPerSourceMaxStartups:
1.380 djm 1956: arg = argv_next(&ac, &av);
1.372 dtucker 1957: if (!arg || *arg == '\0')
1.380 djm 1958: fatal("%s line %d: %s missing argument.",
1959: filename, linenum, keyword);
1.372 dtucker 1960: if (strcmp(arg, "none") == 0) { /* no limit */
1961: value = INT_MAX;
1962: } else {
1963: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 djm 1964: fatal("%s line %d: %s integer value %s.",
1965: filename, linenum, keyword, errstr);
1.372 dtucker 1966: }
1967: if (*activep)
1968: options->per_source_max_startups = value;
1969: break;
1970:
1.133 dtucker 1971: case sMaxAuthTries:
1972: intptr = &options->max_authtries;
1973: goto parse_int;
1.94 markus 1974:
1.180 djm 1975: case sMaxSessions:
1976: intptr = &options->max_sessions;
1977: goto parse_int;
1978:
1.94 markus 1979: case sBanner:
1980: charptr = &options->banner;
1981: goto parse_filename;
1.176 djm 1982:
1.94 markus 1983: /*
1984: * These options can contain %X options expanded at
1985: * connect time, so that you can specify paths like:
1986: *
1987: * AuthorizedKeysFile /etc/ssh_keys/%u
1988: */
1989: case sAuthorizedKeysFile:
1.380 djm 1990: uvalue = options->num_authkeys_files;
1991: while ((arg = argv_next(&ac, &av)) != NULL) {
1992: if (*arg == '\0') {
1993: error("%s line %d: keyword %s empty argument",
1994: filename, linenum, keyword);
1995: goto out;
1996: }
1997: arg2 = tilde_expand_filename(arg, getuid());
1998: if (*activep && uvalue == 0) {
1999: opt_array_append(filename, linenum, keyword,
1.314 djm 2000: &options->authorized_keys_files,
1.380 djm 2001: &options->num_authkeys_files, arg2);
1.219 djm 2002: }
1.380 djm 2003: free(arg2);
1.219 djm 2004: }
1.380 djm 2005: break;
1.219 djm 2006:
1.208 djm 2007: case sAuthorizedPrincipalsFile:
2008: charptr = &options->authorized_principals_file;
1.380 djm 2009: arg = argv_next(&ac, &av);
1.205 djm 2010: if (!arg || *arg == '\0')
1.380 djm 2011: fatal("%s line %d: %s missing argument.",
2012: filename, linenum, keyword);
1.205 djm 2013: if (*activep && *charptr == NULL) {
1.206 markus 2014: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 2015: /* increase optional counter */
2016: if (intptr != NULL)
2017: *intptr = *intptr + 1;
2018: }
2019: break;
1.94 markus 2020:
2021: case sClientAliveInterval:
2022: intptr = &options->client_alive_interval;
2023: goto parse_time;
2024:
2025: case sClientAliveCountMax:
2026: intptr = &options->client_alive_count_max;
2027: goto parse_int;
1.131 djm 2028:
2029: case sAcceptEnv:
1.380 djm 2030: while ((arg = argv_next(&ac, &av)) != NULL) {
2031: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 2032: fatal("%s line %d: Invalid environment name.",
2033: filename, linenum);
1.153 dtucker 2034: if (!*activep)
1.227 markus 2035: continue;
1.380 djm 2036: opt_array_append(filename, linenum, keyword,
1.314 djm 2037: &options->accept_env, &options->num_accept_env,
2038: arg);
1.131 djm 2039: }
2040: break;
1.145 reyk 2041:
1.332 djm 2042: case sSetEnv:
2043: uvalue = options->num_setenv;
1.380 djm 2044: while ((arg = argv_next(&ac, &av)) != NULL) {
2045: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 2046: fatal("%s line %d: Invalid environment.",
2047: filename, linenum);
2048: if (!*activep || uvalue != 0)
2049: continue;
1.385 djm 2050: if (lookup_setenv_in_list(arg, options->setenv,
2051: options->num_setenv) != NULL) {
2052: debug2("%s line %d: ignoring duplicate env "
2053: "name \"%.64s\"", filename, linenum, arg);
2054: continue;
2055: }
1.380 djm 2056: opt_array_append(filename, linenum, keyword,
1.332 djm 2057: &options->setenv, &options->num_setenv, arg);
2058: }
2059: break;
2060:
1.145 reyk 2061: case sPermitTunnel:
2062: intptr = &options->permit_tun;
1.380 djm 2063: arg = argv_next(&ac, &av);
1.146 reyk 2064: if (!arg || *arg == '\0')
1.380 djm 2065: fatal("%s line %d: %s missing argument.",
2066: filename, linenum, keyword);
1.182 dtucker 2067: value = -1;
2068: for (i = 0; tunmode_desc[i].val != -1; i++)
2069: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2070: value = tunmode_desc[i].val;
2071: break;
2072: }
2073: if (value == -1)
1.380 djm 2074: fatal("%s line %d: bad %s argument %s",
2075: filename, linenum, keyword, arg);
1.268 djm 2076: if (*activep && *intptr == -1)
1.146 reyk 2077: *intptr = value;
2078: break;
1.94 markus 2079:
1.360 djm 2080: case sInclude:
2081: if (cmdline) {
2082: fatal("Include directive not supported as a "
2083: "command-line option");
2084: }
2085: value = 0;
1.380 djm 2086: while ((arg2 = argv_next(&ac, &av)) != NULL) {
2087: if (*arg2 == '\0') {
2088: error("%s line %d: keyword %s empty argument",
2089: filename, linenum, keyword);
2090: goto out;
2091: }
1.360 djm 2092: value++;
2093: found = 0;
2094: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2095: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2096: } else
2097: arg = xstrdup(arg2);
2098:
2099: /*
2100: * Don't let included files clobber the containing
2101: * file's Match state.
2102: */
2103: oactive = *activep;
2104:
2105: /* consult cache of include files */
2106: TAILQ_FOREACH(item, includes, entry) {
2107: if (strcmp(item->selector, arg) != 0)
2108: continue;
2109: if (item->filename != NULL) {
2110: parse_server_config_depth(options,
2111: item->filename, item->contents,
2112: includes, connectinfo,
1.365 djm 2113: (*inc_flags & SSHCFG_MATCH_ONLY
2114: ? SSHCFG_MATCH_ONLY : (oactive
2115: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2116: activep, depth + 1);
2117: }
2118: found = 1;
2119: *activep = oactive;
2120: }
2121: if (found != 0) {
2122: free(arg);
2123: continue;
2124: }
2125:
2126: /* requested glob was not in cache */
2127: debug2("%s line %d: new include %s",
2128: filename, linenum, arg);
2129: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2130: if (r != GLOB_NOMATCH) {
1.380 djm 2131: fatal("%s line %d: include \"%s\" glob "
2132: "failed", filename, linenum, arg);
1.360 djm 2133: }
2134: /*
2135: * If no entry matched then record a
2136: * placeholder to skip later glob calls.
2137: */
2138: debug2("%s line %d: no match for %s",
2139: filename, linenum, arg);
2140: item = xcalloc(1, sizeof(*item));
2141: item->selector = strdup(arg);
2142: TAILQ_INSERT_TAIL(includes,
2143: item, entry);
2144: }
2145: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2146: fatal_f("too many glob results");
1.360 djm 2147: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2148: debug2("%s line %d: including %s",
2149: filename, linenum, gbuf.gl_pathv[n]);
2150: item = xcalloc(1, sizeof(*item));
2151: item->selector = strdup(arg);
2152: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2153: if ((item->contents = sshbuf_new()) == NULL)
2154: fatal_f("sshbuf_new failed");
1.360 djm 2155: load_server_config(item->filename,
2156: item->contents);
2157: parse_server_config_depth(options,
2158: item->filename, item->contents,
2159: includes, connectinfo,
1.365 djm 2160: (*inc_flags & SSHCFG_MATCH_ONLY
2161: ? SSHCFG_MATCH_ONLY : (oactive
2162: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2163: activep, depth + 1);
2164: *activep = oactive;
2165: TAILQ_INSERT_TAIL(includes, item, entry);
2166: }
2167: globfree(&gbuf);
2168: free(arg);
2169: }
2170: if (value == 0) {
1.380 djm 2171: fatal("%s line %d: %s missing filename argument",
2172: filename, linenum, keyword);
1.360 djm 2173: }
2174: break;
2175:
1.153 dtucker 2176: case sMatch:
2177: if (cmdline)
2178: fatal("Match directive not supported as a command-line "
1.379 djm 2179: "option");
1.380 djm 2180: value = match_cfg_line(&str, linenum,
1.365 djm 2181: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2182: if (value < 0)
2183: fatal("%s line %d: Bad Match condition", filename,
2184: linenum);
1.365 djm 2185: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 djm 2186: /*
2187: * The MATCH_ONLY flag is applicable only until the first
2188: * match block.
2189: */
1.365 djm 2190: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 djm 2191: /*
2192: * If match_cfg_line() didn't consume all its arguments then
2193: * arrange for the extra arguments check below to fail.
2194: */
2195: if (str == NULL || *str == '\0')
2196: argv_consume(&ac);
1.156 dtucker 2197: break;
2198:
1.330 djm 2199: case sPermitListen:
1.156 dtucker 2200: case sPermitOpen:
1.330 djm 2201: if (opcode == sPermitListen) {
2202: uintptr = &options->num_permitted_listens;
2203: chararrayptr = &options->permitted_listens;
1.329 djm 2204: } else {
2205: uintptr = &options->num_permitted_opens;
2206: chararrayptr = &options->permitted_opens;
2207: }
1.380 djm 2208: arg = argv_next(&ac, &av);
1.156 dtucker 2209: if (!arg || *arg == '\0')
1.380 djm 2210: fatal("%s line %d: %s missing argument.",
2211: filename, linenum, keyword);
1.329 djm 2212: uvalue = *uintptr; /* modified later */
1.310 djm 2213: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 2214: if (*activep && uvalue == 0) {
2215: *uintptr = 1;
2216: *chararrayptr = xcalloc(1,
2217: sizeof(**chararrayptr));
2218: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 2219: }
1.156 dtucker 2220: break;
2221: }
1.380 djm 2222: for (; arg != NULL && *arg != '\0'; arg = argv_next(&ac, &av)) {
1.333 djm 2223: if (opcode == sPermitListen &&
2224: strchr(arg, ':') == NULL) {
2225: /*
2226: * Allow bare port number for PermitListen
2227: * to indicate a wildcard listen host.
2228: */
2229: xasprintf(&arg2, "*:%s", arg);
2230: } else {
2231: arg2 = xstrdup(arg);
1.383 dtucker 2232: p = hpdelim(&arg);
2233: if (p == NULL) {
1.380 djm 2234: fatal("%s line %d: %s missing host",
2235: filename, linenum, keyword);
1.333 djm 2236: }
2237: p = cleanhostname(p);
1.329 djm 2238: }
2239: if (arg == NULL ||
2240: ((port = permitopen_port(arg)) < 0)) {
1.380 djm 2241: fatal("%s line %d: %s bad port number",
2242: filename, linenum, keyword);
1.329 djm 2243: }
2244: if (*activep && uvalue == 0) {
1.380 djm 2245: opt_array_append(filename, linenum, keyword,
1.329 djm 2246: chararrayptr, uintptr, arg2);
1.314 djm 2247: }
2248: free(arg2);
1.159 dtucker 2249: }
1.153 dtucker 2250: break;
2251:
1.158 dtucker 2252: case sForceCommand:
1.380 djm 2253: if (str == NULL || *str == '\0')
2254: fatal("%s line %d: %s missing argument.",
2255: filename, linenum, keyword);
2256: len = strspn(str, WHITESPACE);
1.158 dtucker 2257: if (*activep && options->adm_forced_command == NULL)
1.380 djm 2258: options->adm_forced_command = xstrdup(str + len);
2259: argv_consume(&ac);
2260: break;
1.158 dtucker 2261:
1.176 djm 2262: case sChrootDirectory:
2263: charptr = &options->chroot_directory;
1.177 djm 2264:
1.380 djm 2265: arg = argv_next(&ac, &av);
1.177 djm 2266: if (!arg || *arg == '\0')
1.380 djm 2267: fatal("%s line %d: %s missing argument.",
2268: filename, linenum, keyword);
1.177 djm 2269: if (*activep && *charptr == NULL)
2270: *charptr = xstrdup(arg);
2271: break;
1.176 djm 2272:
1.204 djm 2273: case sTrustedUserCAKeys:
2274: charptr = &options->trusted_user_ca_keys;
2275: goto parse_filename;
2276:
2277: case sRevokedKeys:
2278: charptr = &options->revoked_keys_file;
2279: goto parse_filename;
2280:
1.355 djm 2281: case sSecurityKeyProvider:
2282: charptr = &options->sk_provider;
1.380 djm 2283: arg = argv_next(&ac, &av);
1.356 djm 2284: if (!arg || *arg == '\0')
1.380 djm 2285: fatal("%s line %d: %s missing argument.",
2286: filename, linenum, keyword);
1.356 djm 2287: if (*activep && *charptr == NULL) {
2288: *charptr = strcasecmp(arg, "internal") == 0 ?
2289: xstrdup(arg) : derelativise_path(arg);
2290: /* increase optional counter */
2291: if (intptr != NULL)
2292: *intptr = *intptr + 1;
2293: }
2294: break;
1.355 djm 2295:
1.213 djm 2296: case sIPQoS:
1.380 djm 2297: arg = argv_next(&ac, &av);
2298: if (!arg || *arg == '\0')
2299: fatal("%s line %d: %s missing argument.",
2300: filename, linenum, keyword);
1.213 djm 2301: if ((value = parse_ipqos(arg)) == -1)
1.380 djm 2302: fatal("%s line %d: Bad %s value: %s",
2303: filename, linenum, keyword, arg);
2304: arg = argv_next(&ac, &av);
1.213 djm 2305: if (arg == NULL)
2306: value2 = value;
2307: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 djm 2308: fatal("%s line %d: Bad %s value: %s",
2309: filename, linenum, keyword, arg);
1.213 djm 2310: if (*activep) {
2311: options->ip_qos_interactive = value;
2312: options->ip_qos_bulk = value2;
2313: }
2314: break;
2315:
1.225 djm 2316: case sVersionAddendum:
1.380 djm 2317: if (str == NULL || *str == '\0')
2318: fatal("%s line %d: %s missing argument.",
2319: filename, linenum, keyword);
2320: len = strspn(str, WHITESPACE);
2321: if (strchr(str + len, '\r') != NULL) {
2322: fatal("%.200s line %d: Invalid %s argument",
2323: filename, linenum, keyword);
2324: }
2325: if ((arg = strchr(line, '#')) != NULL) {
2326: *arg = '\0';
2327: rtrim(line);
2328: }
1.225 djm 2329: if (*activep && options->version_addendum == NULL) {
1.380 djm 2330: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2331: options->version_addendum = xstrdup("");
2332: else
1.380 djm 2333: options->version_addendum = xstrdup(str + len);
1.225 djm 2334: }
1.380 djm 2335: argv_consume(&ac);
2336: break;
1.225 djm 2337:
1.231 djm 2338: case sAuthorizedKeysCommand:
1.380 djm 2339: charptr = &options->authorized_keys_command;
2340: parse_command:
2341: len = strspn(str, WHITESPACE);
2342: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
2343: fatal("%.200s line %d: %s must be an absolute path",
2344: filename, linenum, keyword);
2345: }
2346: if (*activep && options->authorized_keys_command == NULL)
2347: *charptr = xstrdup(str + len);
2348: argv_consume(&ac);
2349: break;
1.231 djm 2350:
2351: case sAuthorizedKeysCommandUser:
2352: charptr = &options->authorized_keys_command_user;
1.380 djm 2353: parse_localuser:
2354: arg = argv_next(&ac, &av);
2355: if (!arg || *arg == '\0') {
2356: fatal("%s line %d: missing %s argument.",
2357: filename, linenum, keyword);
2358: }
1.231 djm 2359: if (*activep && *charptr == NULL)
2360: *charptr = xstrdup(arg);
2361: break;
2362:
1.270 djm 2363: case sAuthorizedPrincipalsCommand:
1.380 djm 2364: charptr = &options->authorized_principals_command;
2365: goto parse_command;
1.270 djm 2366:
2367: case sAuthorizedPrincipalsCommandUser:
2368: charptr = &options->authorized_principals_command_user;
1.380 djm 2369: goto parse_localuser;
1.270 djm 2370:
1.232 djm 2371: case sAuthenticationMethods:
1.380 djm 2372: found = options->num_auth_methods == 0;
2373: value = 0; /* seen "any" pseudo-method */
2374: value2 = 0; /* successfully parsed any method */
2375: while ((arg = argv_next(&ac, &av)) != NULL) {
2376: if (strcmp(arg, "any") == 0) {
2377: if (options->num_auth_methods > 0) {
2378: fatal("%s line %d: \"any\" must "
2379: "appear alone in %s",
2380: filename, linenum, keyword);
1.291 djm 2381: }
1.380 djm 2382: value = 1;
2383: } else if (value) {
2384: fatal("%s line %d: \"any\" must appear "
2385: "alone in %s", filename, linenum, keyword);
2386: } else if (auth2_methods_valid(arg, 0) != 0) {
2387: fatal("%s line %d: invalid %s method list.",
2388: filename, linenum, keyword);
1.291 djm 2389: }
1.380 djm 2390: value2 = 1;
2391: if (!found || !*activep)
2392: continue;
2393: opt_array_append(filename, linenum, keyword,
2394: &options->auth_methods,
2395: &options->num_auth_methods, arg);
2396: }
2397: if (value2 == 0) {
2398: fatal("%s line %d: no %s specified",
2399: filename, linenum, keyword);
1.232 djm 2400: }
1.380 djm 2401: break;
1.232 djm 2402:
1.251 millert 2403: case sStreamLocalBindMask:
1.380 djm 2404: arg = argv_next(&ac, &av);
1.251 millert 2405: if (!arg || *arg == '\0')
1.380 djm 2406: fatal("%s line %d: %s missing argument.",
2407: filename, linenum, keyword);
1.251 millert 2408: /* Parse mode in octal format */
2409: value = strtol(arg, &p, 8);
2410: if (arg == p || value < 0 || value > 0777)
1.380 djm 2411: fatal("%s line %d: Invalid %s.",
2412: filename, linenum, keyword);
1.268 djm 2413: if (*activep)
2414: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2415: break;
2416:
2417: case sStreamLocalBindUnlink:
2418: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2419: goto parse_flag;
2420:
1.256 djm 2421: case sFingerprintHash:
1.380 djm 2422: arg = argv_next(&ac, &av);
1.256 djm 2423: if (!arg || *arg == '\0')
1.380 djm 2424: fatal("%s line %d: %s missing argument.",
2425: filename, linenum, keyword);
1.256 djm 2426: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 djm 2427: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
2428: filename, linenum, keyword, arg);
1.256 djm 2429: if (*activep)
2430: options->fingerprint_hash = value;
2431: break;
2432:
1.309 djm 2433: case sExposeAuthInfo:
2434: intptr = &options->expose_userauth_info;
2435: goto parse_flag;
2436:
1.316 djm 2437: case sRDomain:
2438: charptr = &options->routing_domain;
1.380 djm 2439: arg = argv_next(&ac, &av);
1.316 djm 2440: if (!arg || *arg == '\0')
1.380 djm 2441: fatal("%s line %d: %s missing argument.",
2442: filename, linenum, keyword);
1.316 djm 2443: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2444: !valid_rdomain(arg))
1.380 djm 2445: fatal("%s line %d: invalid routing domain",
1.316 djm 2446: filename, linenum);
2447: if (*activep && *charptr == NULL)
2448: *charptr = xstrdup(arg);
1.321 dtucker 2449: break;
1.316 djm 2450:
1.386 djm 2451: case sRequiredRSASize:
2452: intptr = &options->required_rsa_size;
2453: goto parse_int;
2454:
1.389 ! djm 2455: case sChannelTimeout:
! 2456: uvalue = options->num_channel_timeouts;
! 2457: i = 0;
! 2458: while ((arg = argv_next(&ac, &av)) != NULL) {
! 2459: /* Allow "none" only in first position */
! 2460: if (strcasecmp(arg, "none") == 0) {
! 2461: if (i > 0 || ac > 0) {
! 2462: error("%s line %d: keyword %s \"none\" "
! 2463: "argument must appear alone.",
! 2464: filename, linenum, keyword);
! 2465: goto out;
! 2466: }
! 2467: } else if (parse_timeout(arg, NULL, NULL) != 0) {
! 2468: fatal("%s line %d: invalid channel timeout %s",
! 2469: filename, linenum, arg);
! 2470: }
! 2471: if (!*activep || uvalue != 0)
! 2472: continue;
! 2473: opt_array_append(filename, linenum, keyword,
! 2474: &options->channel_timeouts,
! 2475: &options->num_channel_timeouts, arg);
! 2476: }
! 2477: break;
! 2478:
1.94 markus 2479: case sDeprecated:
1.295 djm 2480: case sIgnore:
1.121 jakob 2481: case sUnsupported:
1.295 djm 2482: do_log2(opcode == sIgnore ?
2483: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2484: "%s line %d: %s option %s", filename, linenum,
1.380 djm 2485: opcode == sUnsupported ? "Unsupported" : "Deprecated",
2486: keyword);
2487: argv_consume(&ac);
1.94 markus 2488: break;
2489:
2490: default:
2491: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 djm 2492: filename, linenum, keyword, opcode);
2493: }
2494: /* Check that there is no garbage at end of line. */
2495: if (ac > 0) {
2496: error("%.200s line %d: keyword %s extra arguments "
2497: "at end of line", filename, linenum, keyword);
2498: goto out;
1.94 markus 2499: }
1.380 djm 2500:
2501: /* success */
2502: ret = 0;
2503: out:
2504: argv_free(oav, oac);
2505: return ret;
1.94 markus 2506: }
2507:
1.360 djm 2508: int
2509: process_server_config_line(ServerOptions *options, char *line,
2510: const char *filename, int linenum, int *activep,
2511: struct connection_info *connectinfo, struct include_list *includes)
2512: {
1.365 djm 2513: int inc_flags = 0;
2514:
1.360 djm 2515: return process_server_config_line_depth(options, line, filename,
1.365 djm 2516: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2517: }
2518:
2519:
1.94 markus 2520: /* Reads the server configuration file. */
1.25 markus 2521:
1.94 markus 2522: void
1.338 markus 2523: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2524: {
1.366 markus 2525: struct stat st;
1.331 markus 2526: char *line = NULL, *cp;
2527: size_t linesize = 0;
1.94 markus 2528: FILE *f;
1.388 dtucker 2529: int r;
1.81 stevesk 2530:
1.371 djm 2531: debug2_f("filename %s", filename);
1.134 djm 2532: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2533: perror(filename);
2534: exit(1);
2535: }
1.338 markus 2536: sshbuf_reset(conf);
1.366 markus 2537: /* grow buffer, so realloc is avoided for large config files */
2538: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2539: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2540: fatal_fr(r, "allocate");
1.331 markus 2541: while (getline(&line, &linesize, f) != -1) {
1.134 djm 2542: /*
1.380 djm 2543: * Strip whitespace
1.135 deraadt 2544: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2545: * line numbers later for error messages
2546: */
2547: cp = line + strspn(line, " \t\r");
1.338 markus 2548: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2549: fatal_fr(r, "sshbuf_put");
1.134 djm 2550: }
1.331 markus 2551: free(line);
1.338 markus 2552: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2553: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2554: fclose(f);
1.371 djm 2555: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2556: }
2557:
2558: void
1.226 dtucker 2559: parse_server_match_config(ServerOptions *options,
1.360 djm 2560: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2561: {
2562: ServerOptions mo;
2563:
2564: initialize_server_options(&mo);
1.360 djm 2565: parse_server_config(&mo, "reprocess config", cfg, includes,
1.384 djm 2566: connectinfo, 0);
1.168 dtucker 2567: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2568: }
2569:
1.226 dtucker 2570: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2571: {
2572: char *p;
2573:
2574: while ((p = strsep(&spec, ",")) && *p != '\0') {
2575: if (strncmp(p, "addr=", 5) == 0) {
2576: ci->address = xstrdup(p + 5);
2577: } else if (strncmp(p, "host=", 5) == 0) {
2578: ci->host = xstrdup(p + 5);
2579: } else if (strncmp(p, "user=", 5) == 0) {
2580: ci->user = xstrdup(p + 5);
2581: } else if (strncmp(p, "laddr=", 6) == 0) {
2582: ci->laddress = xstrdup(p + 6);
1.317 djm 2583: } else if (strncmp(p, "rdomain=", 8) == 0) {
2584: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2585: } else if (strncmp(p, "lport=", 6) == 0) {
2586: ci->lport = a2port(p + 6);
2587: if (ci->lport == -1) {
2588: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2589: " specification %s\n", p+6, p);
1.226 dtucker 2590: return -1;
2591: }
2592: } else {
2593: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2594: p);
1.226 dtucker 2595: return -1;
2596: }
2597: }
2598: return 0;
2599: }
2600:
1.168 dtucker 2601: /*
2602: * Copy any supported values that are set.
2603: *
1.195 jj 2604: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2605: * array values that are not used pre-authentication, because any that we
1.328 djm 2606: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2607: */
1.153 dtucker 2608: void
1.168 dtucker 2609: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2610: {
1.247 djm 2611: #define M_CP_INTOPT(n) do {\
2612: if (src->n != -1) \
2613: dst->n = src->n; \
2614: } while (0)
2615:
1.168 dtucker 2616: M_CP_INTOPT(password_authentication);
2617: M_CP_INTOPT(gss_authentication);
2618: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2619: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2620: M_CP_INTOPT(kerberos_authentication);
2621: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2622: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2623: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2624: M_CP_INTOPT(permit_root_login);
1.188 djm 2625: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2626: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2627:
2628: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2629: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2630: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2631: M_CP_INTOPT(disable_forwarding);
1.309 djm 2632: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2633: M_CP_INTOPT(permit_tun);
1.251 millert 2634: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2635: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2636: M_CP_INTOPT(x11_display_offset);
2637: M_CP_INTOPT(x11_forwarding);
2638: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2639: M_CP_INTOPT(permit_tty);
1.250 djm 2640: M_CP_INTOPT(permit_user_rc);
1.180 djm 2641: M_CP_INTOPT(max_sessions);
1.184 dtucker 2642: M_CP_INTOPT(max_authtries);
1.300 markus 2643: M_CP_INTOPT(client_alive_count_max);
2644: M_CP_INTOPT(client_alive_interval);
1.213 djm 2645: M_CP_INTOPT(ip_qos_interactive);
2646: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2647: M_CP_INTOPT(rekey_limit);
2648: M_CP_INTOPT(rekey_interval);
1.308 djm 2649: M_CP_INTOPT(log_level);
1.386 djm 2650: M_CP_INTOPT(required_rsa_size);
1.289 djm 2651:
2652: /*
2653: * The bind_mask is a mode_t that may be unsigned, so we can't use
2654: * M_CP_INTOPT - it does a signed comparison that causes compiler
2655: * warnings.
2656: */
1.290 dtucker 2657: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2658: dst->fwd_opts.streamlocal_bind_mask =
2659: src->fwd_opts.streamlocal_bind_mask;
2660: }
1.247 djm 2661:
2662: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2663: #define M_CP_STROPT(n) do {\
2664: if (src->n != NULL && dst->n != src->n) { \
2665: free(dst->n); \
2666: dst->n = src->n; \
2667: } \
2668: } while(0)
1.314 djm 2669: #define M_CP_STRARRAYOPT(s, num_s) do {\
2670: u_int i; \
2671: if (src->num_s != 0) { \
2672: for (i = 0; i < dst->num_s; i++) \
2673: free(dst->s[i]); \
2674: free(dst->s); \
2675: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2676: for (i = 0; i < src->num_s; i++) \
2677: dst->s[i] = xstrdup(src->s[i]); \
2678: dst->num_s = src->num_s; \
1.312 djm 2679: } \
2680: } while(0)
1.168 dtucker 2681:
1.218 djm 2682: /* See comment in servconf.h */
2683: COPY_MATCH_STRING_OPTS();
1.282 djm 2684:
2685: /* Arguments that accept '+...' need to be expanded */
2686: assemble_algorithms(dst);
1.216 djm 2687:
1.217 dtucker 2688: /*
2689: * The only things that should be below this point are string options
2690: * which are only used after authentication.
2691: */
1.168 dtucker 2692: if (preauth)
2693: return;
1.219 djm 2694:
1.283 djm 2695: /* These options may be "none" to clear a global setting */
1.168 dtucker 2696: M_CP_STROPT(adm_forced_command);
1.283 djm 2697: if (option_clear_or_none(dst->adm_forced_command)) {
2698: free(dst->adm_forced_command);
2699: dst->adm_forced_command = NULL;
2700: }
1.176 djm 2701: M_CP_STROPT(chroot_directory);
1.283 djm 2702: if (option_clear_or_none(dst->chroot_directory)) {
2703: free(dst->chroot_directory);
2704: dst->chroot_directory = NULL;
2705: }
1.153 dtucker 2706: }
1.168 dtucker 2707:
2708: #undef M_CP_INTOPT
2709: #undef M_CP_STROPT
1.219 djm 2710: #undef M_CP_STRARRAYOPT
1.153 dtucker 2711:
1.360 djm 2712: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2713: static void
1.360 djm 2714: parse_server_config_depth(ServerOptions *options, const char *filename,
2715: struct sshbuf *conf, struct include_list *includes,
2716: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2717: {
1.360 djm 2718: int linenum, bad_options = 0;
1.136 dtucker 2719: char *cp, *obuf, *cbuf;
1.134 djm 2720:
1.360 djm 2721: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2722: fatal("Too many recursive configuration includes");
2723:
1.371 djm 2724: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2725: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2726:
1.287 djm 2727: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2728: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2729: linenum = 1;
1.140 deraadt 2730: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2731: if (process_server_config_line_depth(options, cp,
1.365 djm 2732: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2733: depth, includes) != 0)
1.94 markus 2734: bad_options++;
1.1 deraadt 2735: }
1.239 djm 2736: free(obuf);
1.78 stevesk 2737: if (bad_options > 0)
2738: fatal("%s: terminating, %d bad configuration options",
2739: filename, bad_options);
1.360 djm 2740: }
2741:
2742: void
2743: parse_server_config(ServerOptions *options, const char *filename,
2744: struct sshbuf *conf, struct include_list *includes,
1.384 djm 2745: struct connection_info *connectinfo, int reexec)
1.360 djm 2746: {
2747: int active = connectinfo ? 0 : 1;
2748: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2749: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.384 djm 2750: if (!reexec)
2751: process_queued_listen_addrs(options);
1.182 dtucker 2752: }
2753:
2754: static const char *
1.221 djm 2755: fmt_multistate_int(int val, const struct multistate *m)
2756: {
2757: u_int i;
2758:
2759: for (i = 0; m[i].key != NULL; i++) {
2760: if (m[i].value == val)
2761: return m[i].key;
2762: }
2763: return "UNKNOWN";
2764: }
2765:
2766: static const char *
1.182 dtucker 2767: fmt_intarg(ServerOpCodes code, int val)
2768: {
1.221 djm 2769: if (val == -1)
2770: return "unset";
2771: switch (code) {
2772: case sAddressFamily:
2773: return fmt_multistate_int(val, multistate_addressfamily);
2774: case sPermitRootLogin:
2775: return fmt_multistate_int(val, multistate_permitrootlogin);
2776: case sGatewayPorts:
2777: return fmt_multistate_int(val, multistate_gatewayports);
2778: case sCompression:
2779: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2780: case sAllowTcpForwarding:
2781: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2782: case sAllowStreamLocalForwarding:
2783: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2784: case sIgnoreRhosts:
2785: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2786: case sFingerprintHash:
2787: return ssh_digest_alg_name(val);
1.221 djm 2788: default:
2789: switch (val) {
2790: case 0:
2791: return "no";
2792: case 1:
2793: return "yes";
2794: default:
2795: return "UNKNOWN";
2796: }
1.182 dtucker 2797: }
2798: }
2799:
2800: static void
2801: dump_cfg_int(ServerOpCodes code, int val)
2802: {
2803: printf("%s %d\n", lookup_opcode_name(code), val);
2804: }
2805:
2806: static void
1.263 dtucker 2807: dump_cfg_oct(ServerOpCodes code, int val)
2808: {
2809: printf("%s 0%o\n", lookup_opcode_name(code), val);
2810: }
2811:
2812: static void
1.182 dtucker 2813: dump_cfg_fmtint(ServerOpCodes code, int val)
2814: {
2815: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2816: }
2817:
2818: static void
2819: dump_cfg_string(ServerOpCodes code, const char *val)
2820: {
1.257 djm 2821: printf("%s %s\n", lookup_opcode_name(code),
2822: val == NULL ? "none" : val);
1.182 dtucker 2823: }
2824:
2825: static void
2826: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2827: {
2828: u_int i;
2829:
2830: for (i = 0; i < count; i++)
1.219 djm 2831: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2832: }
2833:
2834: static void
2835: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2836: {
2837: u_int i;
2838:
1.291 djm 2839: if (count <= 0 && code != sAuthenticationMethods)
1.261 dtucker 2840: return;
1.219 djm 2841: printf("%s", lookup_opcode_name(code));
2842: for (i = 0; i < count; i++)
2843: printf(" %s", vals[i]);
1.291 djm 2844: if (code == sAuthenticationMethods && count == 0)
2845: printf(" any");
1.389 ! djm 2846: else if (code == sChannelTimeout && count == 0)
! 2847: printf(" none");
1.219 djm 2848: printf("\n");
1.182 dtucker 2849: }
2850:
1.315 djm 2851: static char *
2852: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2853: {
1.315 djm 2854: int r;
1.182 dtucker 2855: struct addrinfo *ai;
1.315 djm 2856: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2857: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2858:
1.263 dtucker 2859: /*
2860: * ListenAddress must be after Port. add_one_listen_addr pushes
2861: * addresses onto a stack, so to maintain ordering we need to
2862: * print these in reverse order.
2863: */
1.315 djm 2864: for (ai = la->addrs; ai; ai = ai->ai_next) {
2865: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2866: sizeof(addr), port, sizeof(port),
2867: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2868: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2869: continue;
2870: }
2871: laddr2 = laddr1;
2872: if (ai->ai_family == AF_INET6) {
2873: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2874: addr, port,
2875: la->rdomain == NULL ? "" : " rdomain ",
2876: la->rdomain == NULL ? "" : la->rdomain,
2877: laddr2);
1.182 dtucker 2878: } else {
1.315 djm 2879: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2880: addr, port,
2881: la->rdomain == NULL ? "" : " rdomain ",
2882: la->rdomain == NULL ? "" : la->rdomain,
2883: laddr2);
1.182 dtucker 2884: }
1.315 djm 2885: free(laddr2);
2886: }
2887: return laddr1;
2888: }
2889:
2890: void
2891: dump_config(ServerOptions *o)
2892: {
2893: char *s;
2894: u_int i;
2895:
2896: /* these are usually at the top of the config */
2897: for (i = 0; i < o->num_ports; i++)
2898: printf("port %d\n", o->ports[i]);
2899: dump_cfg_fmtint(sAddressFamily, o->address_family);
2900:
2901: for (i = 0; i < o->num_listen_addrs; i++) {
2902: s = format_listen_addrs(&o->listen_addrs[i]);
2903: printf("%s", s);
2904: free(s);
1.182 dtucker 2905: }
2906:
2907: /* integer arguments */
2908: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2909: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2910: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2911: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2912: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2913: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.386 djm 2914: dump_cfg_int(sRequiredRSASize, o->required_rsa_size);
1.263 dtucker 2915: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2916:
2917: /* formatted integer arguments */
2918: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2919: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2920: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2921: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2922: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2923: o->hostbased_uses_name_from_packet_only);
2924: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2925: #ifdef KRB5
1.182 dtucker 2926: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2927: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2928: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2929: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2930: #endif
2931: #ifdef GSSAPI
1.182 dtucker 2932: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2933: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2934: #endif
1.182 dtucker 2935: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2936: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2937: o->kbd_interactive_authentication);
2938: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2939: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2940: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2941: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2942: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2943: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2944: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2945: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2946: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2947: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2948: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2949: dump_cfg_fmtint(sUseDNS, o->use_dns);
2950: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2951: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2952: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2953: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2954: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2955: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2956: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2957:
2958: /* string arguments */
2959: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 2960: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 2961: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 2962: dump_cfg_string(sCiphers, o->ciphers);
2963: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 2964: dump_cfg_string(sBanner, o->banner);
2965: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2966: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2967: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2968: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 2969: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 2970: dump_cfg_string(sAuthorizedPrincipalsFile,
2971: o->authorized_principals_file);
1.261 dtucker 2972: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2973: ? "none" : o->version_addendum);
1.231 djm 2974: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2975: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 2976: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
2977: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 2978: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 2979: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
2980: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 2981: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 2982: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 2983: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 2984: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 2985:
2986: /* string arguments requiring a lookup */
2987: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2988: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2989:
2990: /* string array arguments */
1.219 djm 2991: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2992: o->authorized_keys_files);
1.182 dtucker 2993: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 2994: o->host_key_files);
1.261 dtucker 2995: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 2996: o->host_cert_files);
1.182 dtucker 2997: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2998: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2999: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
3000: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
3001: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 3002: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 3003: dump_cfg_strarray_oneline(sAuthenticationMethods,
3004: o->num_auth_methods, o->auth_methods);
1.370 djm 3005: dump_cfg_strarray_oneline(sLogVerbose,
3006: o->num_log_verbose, o->log_verbose);
1.389 ! djm 3007: dump_cfg_strarray_oneline(sChannelTimeout,
! 3008: o->num_channel_timeouts, o->channel_timeouts);
1.182 dtucker 3009:
3010: /* other arguments */
3011: for (i = 0; i < o->num_subsystems; i++)
3012: printf("subsystem %s %s\n", o->subsystem_name[i],
3013: o->subsystem_args[i]);
3014:
3015: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
3016: o->max_startups_rate, o->max_startups);
1.372 dtucker 3017: printf("persourcemaxstartups ");
3018: if (o->per_source_max_startups == INT_MAX)
3019: printf("none\n");
3020: else
3021: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 3022: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 3023: o->per_source_masklen_ipv6);
1.182 dtucker 3024:
1.318 djm 3025: s = NULL;
3026: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 3027: if (tunmode_desc[i].val == o->permit_tun) {
3028: s = tunmode_desc[i].text;
3029: break;
3030: }
1.318 djm 3031: }
1.182 dtucker 3032: dump_cfg_string(sPermitTunnel, s);
1.213 djm 3033:
1.214 stevesk 3034: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
3035: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 3036:
1.284 dtucker 3037: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 3038: o->rekey_interval);
1.182 dtucker 3039:
1.310 djm 3040: printf("permitopen");
3041: if (o->num_permitted_opens == 0)
3042: printf(" any");
3043: else {
3044: for (i = 0; i < o->num_permitted_opens; i++)
3045: printf(" %s", o->permitted_opens[i]);
1.329 djm 3046: }
3047: printf("\n");
1.330 djm 3048: printf("permitlisten");
3049: if (o->num_permitted_listens == 0)
1.329 djm 3050: printf(" any");
3051: else {
1.330 djm 3052: for (i = 0; i < o->num_permitted_listens; i++)
3053: printf(" %s", o->permitted_listens[i]);
1.310 djm 3054: }
3055: printf("\n");
1.334 djm 3056:
1.367 djm 3057: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 3058: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
3059: } else {
3060: printf("permituserenvironment %s\n",
1.367 djm 3061: o->permit_user_env_allowlist);
1.334 djm 3062: }
3063:
1.354 djm 3064: printf("pubkeyauthoptions");
3065: if (o->pubkey_auth_options == 0)
3066: printf(" none");
3067: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
3068: printf(" touch-required");
1.368 djm 3069: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
3070: printf(" verify-required");
1.354 djm 3071: printf("\n");
1.1 deraadt 3072: }
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