Annotation of src/usr.bin/ssh/servconf.c, Revision 1.380
1.226 dtucker 1:
1.380 ! djm 2: /* $OpenBSD: servconf.c,v 1.379 2021/04/03 06:18:40 djm 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;
1.80 markus 125: options->challenge_response_authentication = -1;
1.25 markus 126: options->permit_empty_passwd = -1;
1.113 markus 127: options->permit_user_env = -1;
1.367 djm 128: options->permit_user_env_allowlist = NULL;
1.111 markus 129: options->compression = -1;
1.235 dtucker 130: options->rekey_limit = -1;
131: options->rekey_interval = -1;
1.53 markus 132: options->allow_tcp_forwarding = -1;
1.251 millert 133: options->allow_streamlocal_forwarding = -1;
1.178 pyr 134: options->allow_agent_forwarding = -1;
1.25 markus 135: options->num_allow_users = 0;
136: options->num_deny_users = 0;
137: options->num_allow_groups = 0;
138: options->num_deny_groups = 0;
1.33 markus 139: options->ciphers = NULL;
1.66 markus 140: options->macs = NULL;
1.211 djm 141: options->kex_algorithms = NULL;
1.341 djm 142: options->ca_sign_algorithms = NULL;
1.251 millert 143: options->fwd_opts.gateway_ports = -1;
144: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
145: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 146: options->num_subsystems = 0;
1.50 markus 147: options->max_startups_begin = -1;
148: options->max_startups_rate = -1;
1.46 markus 149: options->max_startups = -1;
1.372 dtucker 150: options->per_source_max_startups = -1;
151: options->per_source_masklen_ipv4 = -1;
152: options->per_source_masklen_ipv6 = -1;
1.133 dtucker 153: options->max_authtries = -1;
1.180 djm 154: options->max_sessions = -1;
1.57 markus 155: options->banner = NULL;
1.122 markus 156: options->use_dns = -1;
1.77 beck 157: options->client_alive_interval = -1;
158: options->client_alive_count_max = -1;
1.219 djm 159: options->num_authkeys_files = 0;
1.131 djm 160: options->num_accept_env = 0;
1.332 djm 161: options->num_setenv = 0;
1.145 reyk 162: options->permit_tun = -1;
1.310 djm 163: options->permitted_opens = NULL;
1.330 djm 164: options->permitted_listens = NULL;
1.158 dtucker 165: options->adm_forced_command = NULL;
1.176 djm 166: options->chroot_directory = NULL;
1.231 djm 167: options->authorized_keys_command = NULL;
168: options->authorized_keys_command_user = NULL;
1.204 djm 169: options->revoked_keys_file = NULL;
1.355 djm 170: options->sk_provider = NULL;
1.204 djm 171: options->trusted_user_ca_keys = NULL;
1.208 djm 172: options->authorized_principals_file = NULL;
1.270 djm 173: options->authorized_principals_command = NULL;
174: options->authorized_principals_command_user = NULL;
1.213 djm 175: options->ip_qos_interactive = -1;
176: options->ip_qos_bulk = -1;
1.225 djm 177: options->version_addendum = NULL;
1.256 djm 178: options->fingerprint_hash = -1;
1.301 djm 179: options->disable_forwarding = -1;
1.309 djm 180: options->expose_userauth_info = -1;
1.1 deraadt 181: }
182:
1.257 djm 183: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
184: static int
185: option_clear_or_none(const char *o)
186: {
187: return o == NULL || strcasecmp(o, "none") == 0;
188: }
189:
1.282 djm 190: static void
191: assemble_algorithms(ServerOptions *o)
192: {
1.341 djm 193: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.358 dtucker 194: char *def_cipher, *def_mac, *def_kex, *def_key, *def_sig;
1.340 djm 195: int r;
1.335 djm 196:
197: all_cipher = cipher_alg_list(',', 0);
198: all_mac = mac_alg_list(',');
199: all_kex = kex_alg_list(',');
200: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 djm 201: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.358 dtucker 202: /* remove unsupported algos from default lists */
1.367 djm 203: def_cipher = match_filter_allowlist(KEX_SERVER_ENCRYPT, all_cipher);
204: def_mac = match_filter_allowlist(KEX_SERVER_MAC, all_mac);
205: def_kex = match_filter_allowlist(KEX_SERVER_KEX, all_kex);
206: def_key = match_filter_allowlist(KEX_DEFAULT_PK_ALG, all_key);
207: def_sig = match_filter_allowlist(SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 208: #define ASSEMBLE(what, defaults, all) \
209: do { \
210: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
1.371 djm 211: fatal_fr(r, "%s", #what); \
1.340 djm 212: } while (0)
1.358 dtucker 213: ASSEMBLE(ciphers, def_cipher, all_cipher);
214: ASSEMBLE(macs, def_mac, all_mac);
215: ASSEMBLE(kex_algorithms, def_kex, all_kex);
216: ASSEMBLE(hostkeyalgorithms, def_key, all_key);
1.375 dtucker 217: ASSEMBLE(hostbased_accepted_algos, def_key, all_key);
1.374 dtucker 218: ASSEMBLE(pubkey_accepted_algos, def_key, all_key);
1.358 dtucker 219: ASSEMBLE(ca_sign_algorithms, def_sig, all_sig);
1.340 djm 220: #undef ASSEMBLE
1.335 djm 221: free(all_cipher);
222: free(all_mac);
223: free(all_kex);
224: free(all_key);
1.341 djm 225: free(all_sig);
1.358 dtucker 226: free(def_cipher);
227: free(def_mac);
228: free(def_kex);
229: free(def_key);
230: free(def_sig);
1.282 djm 231: }
232:
1.314 djm 233: void
234: servconf_add_hostkey(const char *file, const int line,
1.344 djm 235: ServerOptions *options, const char *path, int userprovided)
1.314 djm 236: {
237: char *apath = derelativise_path(path);
238:
1.376 markus 239: opt_array_append2(file, line, "HostKey",
1.344 djm 240: &options->host_key_files, &options->host_key_file_userprovided,
241: &options->num_host_key_files, apath, userprovided);
1.314 djm 242: free(apath);
243: }
244:
245: void
246: servconf_add_hostcert(const char *file, const int line,
247: ServerOptions *options, const char *path)
248: {
249: char *apath = derelativise_path(path);
250:
1.376 markus 251: opt_array_append(file, line, "HostCertificate",
1.314 djm 252: &options->host_cert_files, &options->num_host_cert_files, apath);
253: free(apath);
254: }
255:
1.34 markus 256: void
1.25 markus 257: fill_default_server_options(ServerOptions *options)
1.1 deraadt 258: {
1.314 djm 259: u_int i;
1.257 djm 260:
1.54 markus 261: if (options->num_host_key_files == 0) {
1.293 naddy 262: /* fill default hostkeys */
1.314 djm 263: servconf_add_hostkey("[default]", 0, options,
1.344 djm 264: _PATH_HOST_RSA_KEY_FILE, 0);
1.314 djm 265: servconf_add_hostkey("[default]", 0, options,
1.344 djm 266: _PATH_HOST_ECDSA_KEY_FILE, 0);
1.314 djm 267: servconf_add_hostkey("[default]", 0, options,
1.344 djm 268: _PATH_HOST_ED25519_KEY_FILE, 0);
1.326 markus 269: #ifdef WITH_XMSS
1.325 markus 270: servconf_add_hostkey("[default]", 0, options,
1.344 djm 271: _PATH_HOST_XMSS_KEY_FILE, 0);
1.326 markus 272: #endif /* WITH_XMSS */
1.54 markus 273: }
1.203 djm 274: /* No certificates by default */
1.29 markus 275: if (options->num_ports == 0)
276: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 277: if (options->address_family == -1)
278: options->address_family = AF_UNSPEC;
1.29 markus 279: if (options->listen_addrs == NULL)
1.315 djm 280: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 281: if (options->pid_file == NULL)
1.257 djm 282: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.378 dtucker 283: if (options->moduli_file == NULL)
284: options->moduli_file = xstrdup(_PATH_DH_MODULI);
1.25 markus 285: if (options->login_grace_time == -1)
1.115 stevesk 286: options->login_grace_time = 120;
1.67 markus 287: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 288: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 289: if (options->ignore_rhosts == -1)
1.30 markus 290: options->ignore_rhosts = 1;
1.25 markus 291: if (options->ignore_user_known_hosts == -1)
292: options->ignore_user_known_hosts = 0;
293: if (options->print_motd == -1)
294: options->print_motd = 1;
1.72 stevesk 295: if (options->print_lastlog == -1)
296: options->print_lastlog = 1;
1.25 markus 297: if (options->x11_forwarding == -1)
1.30 markus 298: options->x11_forwarding = 0;
1.25 markus 299: if (options->x11_display_offset == -1)
1.30 markus 300: options->x11_display_offset = 10;
1.99 stevesk 301: if (options->x11_use_localhost == -1)
302: options->x11_use_localhost = 1;
1.42 markus 303: if (options->xauth_location == NULL)
1.257 djm 304: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 305: if (options->permit_tty == -1)
306: options->permit_tty = 1;
1.250 djm 307: if (options->permit_user_rc == -1)
308: options->permit_user_rc = 1;
1.25 markus 309: if (options->strict_modes == -1)
310: options->strict_modes = 1;
1.129 markus 311: if (options->tcp_keep_alive == -1)
312: options->tcp_keep_alive = 1;
1.101 markus 313: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 314: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 315: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 316: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 317: if (options->hostbased_authentication == -1)
318: options->hostbased_authentication = 0;
319: if (options->hostbased_uses_name_from_packet_only == -1)
320: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 321: if (options->pubkey_authentication == -1)
322: options->pubkey_authentication = 1;
1.354 djm 323: if (options->pubkey_auth_options == -1)
324: options->pubkey_auth_options = 0;
1.25 markus 325: if (options->kerberos_authentication == -1)
1.107 markus 326: options->kerberos_authentication = 0;
1.25 markus 327: if (options->kerberos_or_local_passwd == -1)
328: options->kerberos_or_local_passwd = 1;
329: if (options->kerberos_ticket_cleanup == -1)
330: options->kerberos_ticket_cleanup = 1;
1.130 jakob 331: if (options->kerberos_get_afs_token == -1)
332: options->kerberos_get_afs_token = 0;
1.125 markus 333: if (options->gss_authentication == -1)
334: options->gss_authentication = 0;
335: if (options->gss_cleanup_creds == -1)
336: options->gss_cleanup_creds = 1;
1.271 djm 337: if (options->gss_strict_acceptor == -1)
1.302 djm 338: options->gss_strict_acceptor = 1;
1.25 markus 339: if (options->password_authentication == -1)
340: options->password_authentication = 1;
1.52 markus 341: if (options->kbd_interactive_authentication == -1)
342: options->kbd_interactive_authentication = 0;
1.80 markus 343: if (options->challenge_response_authentication == -1)
344: options->challenge_response_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");
1.277 djm 422:
1.282 djm 423: assemble_algorithms(options);
1.277 djm 424:
1.285 djm 425: /* Turn privilege separation and sandboxing on by default */
1.102 provos 426: if (use_privsep == -1)
1.285 djm 427: use_privsep = PRIVSEP_ON;
1.257 djm 428:
429: #define CLEAR_ON_NONE(v) \
430: do { \
431: if (option_clear_or_none(v)) { \
432: free(v); \
433: v = NULL; \
434: } \
435: } while(0)
436: CLEAR_ON_NONE(options->pid_file);
437: CLEAR_ON_NONE(options->xauth_location);
438: CLEAR_ON_NONE(options->banner);
439: CLEAR_ON_NONE(options->trusted_user_ca_keys);
440: CLEAR_ON_NONE(options->revoked_keys_file);
1.355 djm 441: CLEAR_ON_NONE(options->sk_provider);
1.267 djm 442: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 443: CLEAR_ON_NONE(options->adm_forced_command);
444: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 445: CLEAR_ON_NONE(options->routing_domain);
1.357 djm 446: CLEAR_ON_NONE(options->host_key_agent);
1.257 djm 447: for (i = 0; i < options->num_host_key_files; i++)
448: CLEAR_ON_NONE(options->host_key_files[i]);
449: for (i = 0; i < options->num_host_cert_files; i++)
450: CLEAR_ON_NONE(options->host_cert_files[i]);
451: #undef CLEAR_ON_NONE
1.291 djm 452:
453: /* Similar handling for AuthenticationMethods=any */
454: if (options->num_auth_methods == 1 &&
455: strcmp(options->auth_methods[0], "any") == 0) {
456: free(options->auth_methods[0]);
457: options->auth_methods[0] = NULL;
458: options->num_auth_methods = 0;
459: }
1.1 deraadt 460: }
461:
462: /* Keyword tokens. */
1.25 markus 463: typedef enum {
464: sBadOption, /* == unknown option */
1.293 naddy 465: sPort, sHostKeyFile, sLoginGraceTime,
1.370 djm 466: sPermitRootLogin, sLogFacility, sLogLevel, sLogVerbose,
1.25 markus 467: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.323 dtucker 468: sKerberosGetAFSToken, sChallengeResponseAuthentication,
1.138 djm 469: sPasswordAuthentication, sKbdInteractiveAuthentication,
470: sListenAddress, sAddressFamily,
1.72 stevesk 471: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 472: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 473: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 474: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 475: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.378 dtucker 476: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile, sModuliFile,
1.374 dtucker 477: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedAlgorithms,
1.258 djm 478: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 479: sBanner, sUseDNS, sHostbasedAuthentication,
1.375 dtucker 480: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedAlgorithms,
1.372 dtucker 481: sHostKeyAlgorithms, sPerSourceMaxStartups, sPerSourceNetBlockSize,
1.258 djm 482: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 483: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 484: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 485: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 486: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.360 djm 487: sHostCertificate, sInclude,
1.208 djm 488: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 489: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 djm 490: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 491: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 492: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 493: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 494: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.355 djm 495: sExposeAuthInfo, sRDomain, sPubkeyAuthOptions, sSecurityKeyProvider,
1.295 djm 496: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 497: } ServerOpCodes;
498:
1.360 djm 499: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of config */
500: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
501: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
502: #define SSHCFG_NEVERMATCH 0x04 /* Match never matches; internal only */
1.365 djm 503: #define SSHCFG_MATCH_ONLY 0x08 /* Match only in conditional blocks; internal only */
1.153 dtucker 504:
1.1 deraadt 505: /* Textual representation of the tokens. */
1.25 markus 506: static struct {
507: const char *name;
508: ServerOpCodes opcode;
1.153 dtucker 509: u_int flags;
1.25 markus 510: } keywords[] = {
1.153 dtucker 511: { "port", sPort, SSHCFG_GLOBAL },
512: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
513: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 514: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 515: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.378 dtucker 516: { "modulifile", sModuliFile, SSHCFG_GLOBAL },
1.293 naddy 517: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 518: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 519: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 520: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 521: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 522: { "loglevel", sLogLevel, SSHCFG_ALL },
1.370 djm 523: { "logverbose", sLogVerbose, SSHCFG_ALL },
1.153 dtucker 524: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 525: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 526: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 527: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.377 dtucker 528: { "hostbasedacceptedalgorithms", sHostbasedAcceptedAlgorithms, SSHCFG_ALL },
1.375 dtucker 529: { "hostbasedacceptedkeytypes", sHostbasedAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.276 markus 530: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 531: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 532: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.377 dtucker 533: { "pubkeyacceptedalgorithms", sPubkeyAcceptedAlgorithms, SSHCFG_ALL },
1.374 dtucker 534: { "pubkeyacceptedkeytypes", sPubkeyAcceptedAlgorithms, SSHCFG_ALL }, /* obsolete */
1.354 djm 535: { "pubkeyauthoptions", sPubkeyAuthOptions, SSHCFG_ALL },
1.153 dtucker 536: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 537: #ifdef KRB5
1.168 dtucker 538: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 539: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
540: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
541: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 542: #else
1.168 dtucker 543: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 544: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
545: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
546: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 547: #endif
1.153 dtucker 548: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
549: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 550: #ifdef GSSAPI
1.168 dtucker 551: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 552: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 553: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 554: #else
1.168 dtucker 555: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 556: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 557: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 558: #endif
1.168 dtucker 559: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
560: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 561: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 562: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
563: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
564: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
565: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
566: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
567: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
1.362 djm 568: { "ignorerhosts", sIgnoreRhosts, SSHCFG_ALL },
1.153 dtucker 569: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 570: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
571: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
572: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 573: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
574: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 575: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 576: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 577: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 578: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 579: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 580: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
581: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
582: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 583: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 584: { "allowusers", sAllowUsers, SSHCFG_ALL },
585: { "denyusers", sDenyUsers, SSHCFG_ALL },
586: { "allowgroups", sAllowGroups, SSHCFG_ALL },
587: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 588: { "ciphers", sCiphers, SSHCFG_GLOBAL },
589: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 590: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 591: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
592: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
593: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.372 dtucker 594: { "persourcemaxstartups", sPerSourceMaxStartups, SSHCFG_GLOBAL },
595: { "persourcenetblocksize", sPerSourceNetBlockSize, SSHCFG_GLOBAL },
1.184 dtucker 596: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 597: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 598: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 599: { "usedns", sUseDNS, SSHCFG_GLOBAL },
600: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
601: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 602: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
603: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 604: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 605: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 606: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 607: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 608: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 609: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 610: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 611: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 612: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 613: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 614: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 615: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 616: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 617: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 618: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
619: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 620: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 621: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.360 djm 622: { "include", sInclude, SSHCFG_ALL },
1.213 djm 623: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 624: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
625: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 626: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
627: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 628: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 629: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 630: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
631: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
632: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 633: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 634: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 635: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 636: { "rdomain", sRDomain, SSHCFG_ALL },
1.342 djm 637: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.355 djm 638: { "securitykeyprovider", sSecurityKeyProvider, SSHCFG_GLOBAL },
1.153 dtucker 639: { NULL, sBadOption, 0 }
1.1 deraadt 640: };
641:
1.182 dtucker 642: static struct {
643: int val;
644: char *text;
645: } tunmode_desc[] = {
646: { SSH_TUNMODE_NO, "no" },
647: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
648: { SSH_TUNMODE_ETHERNET, "ethernet" },
649: { SSH_TUNMODE_YES, "yes" },
650: { -1, NULL }
651: };
652:
1.329 djm 653: /* Returns an opcode name from its number */
654:
655: static const char *
656: lookup_opcode_name(ServerOpCodes code)
657: {
658: u_int i;
659:
660: for (i = 0; keywords[i].name != NULL; i++)
661: if (keywords[i].opcode == code)
662: return(keywords[i].name);
663: return "UNKNOWN";
664: }
665:
666:
1.27 markus 667: /*
1.73 stevesk 668: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 669: */
1.1 deraadt 670:
1.34 markus 671: static ServerOpCodes
1.25 markus 672: parse_token(const char *cp, const char *filename,
1.153 dtucker 673: int linenum, u_int *flags)
1.1 deraadt 674: {
1.55 markus 675: u_int i;
1.1 deraadt 676:
1.25 markus 677: for (i = 0; keywords[i].name; i++)
1.153 dtucker 678: if (strcasecmp(cp, keywords[i].name) == 0) {
679: *flags = keywords[i].flags;
1.25 markus 680: return keywords[i].opcode;
1.153 dtucker 681: }
1.25 markus 682:
1.78 stevesk 683: error("%s: line %d: Bad configuration option: %s",
684: filename, linenum, cp);
1.25 markus 685: return sBadOption;
1.1 deraadt 686: }
687:
1.202 djm 688: char *
689: derelativise_path(const char *path)
690: {
1.259 deraadt 691: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 692:
1.257 djm 693: if (strcasecmp(path, "none") == 0)
694: return xstrdup("none");
1.202 djm 695: expanded = tilde_expand_filename(path, getuid());
1.343 djm 696: if (path_absolute(expanded))
1.202 djm 697: return expanded;
1.207 djm 698: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.371 djm 699: fatal_f("getcwd: %s", strerror(errno));
1.202 djm 700: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 701: free(expanded);
1.202 djm 702: return ret;
703: }
704:
1.84 itojun 705: static void
1.315 djm 706: add_listen_addr(ServerOptions *options, const char *addr,
707: const char *rdomain, int port)
1.74 stevesk 708: {
1.142 djm 709: u_int i;
1.74 stevesk 710:
1.315 djm 711: if (port > 0)
712: add_one_listen_addr(options, addr, rdomain, port);
713: else {
714: for (i = 0; i < options->num_ports; i++) {
715: add_one_listen_addr(options, addr, rdomain,
716: options->ports[i]);
717: }
718: }
1.74 stevesk 719: }
720:
1.84 itojun 721: static void
1.315 djm 722: add_one_listen_addr(ServerOptions *options, const char *addr,
723: const char *rdomain, int port)
1.29 markus 724: {
725: struct addrinfo hints, *ai, *aitop;
726: char strport[NI_MAXSERV];
727: int gaierr;
1.315 djm 728: u_int i;
729:
730: /* Find listen_addrs entry for this rdomain */
731: for (i = 0; i < options->num_listen_addrs; i++) {
732: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
733: break;
734: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
735: continue;
736: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
737: break;
738: }
739: if (i >= options->num_listen_addrs) {
740: /* No entry for this rdomain; allocate one */
741: if (i >= INT_MAX)
1.371 djm 742: fatal_f("too many listen addresses");
1.315 djm 743: options->listen_addrs = xrecallocarray(options->listen_addrs,
744: options->num_listen_addrs, options->num_listen_addrs + 1,
745: sizeof(*options->listen_addrs));
746: i = options->num_listen_addrs++;
747: if (rdomain != NULL)
748: options->listen_addrs[i].rdomain = xstrdup(rdomain);
749: }
750: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 751:
1.74 stevesk 752: memset(&hints, 0, sizeof(hints));
1.138 djm 753: hints.ai_family = options->address_family;
1.74 stevesk 754: hints.ai_socktype = SOCK_STREAM;
755: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 756: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 757: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
758: fatal("bad addr or host: %s (%s)",
759: addr ? addr : "<NULL>",
1.173 dtucker 760: ssh_gai_strerror(gaierr));
1.74 stevesk 761: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
762: ;
1.315 djm 763: ai->ai_next = options->listen_addrs[i].addrs;
764: options->listen_addrs[i].addrs = aitop;
765: }
766:
767: /* Returns nonzero if the routing domain name is valid */
768: static int
769: valid_rdomain(const char *name)
770: {
771: const char *errstr;
772: long long num;
773: struct rt_tableinfo info;
774: int mib[6];
775: size_t miblen = sizeof(mib);
776:
777: if (name == NULL)
778: return 1;
779:
780: num = strtonum(name, 0, 255, &errstr);
781: if (errstr != NULL)
782: return 0;
783:
784: /* Check whether the table actually exists */
785: memset(mib, 0, sizeof(mib));
786: mib[0] = CTL_NET;
787: mib[1] = PF_ROUTE;
788: mib[4] = NET_RT_TABLE;
789: mib[5] = (int)num;
790: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
791: return 0;
792:
793: return 1;
1.29 markus 794: }
795:
1.266 dtucker 796: /*
797: * Queue a ListenAddress to be processed once we have all of the Ports
798: * and AddressFamily options.
799: */
800: static void
1.315 djm 801: queue_listen_addr(ServerOptions *options, const char *addr,
802: const char *rdomain, int port)
1.266 dtucker 803: {
1.315 djm 804: struct queued_listenaddr *qla;
805:
806: options->queued_listen_addrs = xrecallocarray(
807: options->queued_listen_addrs,
808: options->num_queued_listens, options->num_queued_listens + 1,
809: sizeof(*options->queued_listen_addrs));
810: qla = &options->queued_listen_addrs[options->num_queued_listens++];
811: qla->addr = xstrdup(addr);
812: qla->port = port;
813: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 814: }
815:
816: /*
817: * Process queued (text) ListenAddress entries.
818: */
819: static void
820: process_queued_listen_addrs(ServerOptions *options)
821: {
822: u_int i;
1.315 djm 823: struct queued_listenaddr *qla;
1.266 dtucker 824:
825: if (options->num_ports == 0)
826: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
827: if (options->address_family == -1)
828: options->address_family = AF_UNSPEC;
829:
830: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 831: qla = &options->queued_listen_addrs[i];
832: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
833: free(qla->addr);
834: free(qla->rdomain);
1.266 dtucker 835: }
836: free(options->queued_listen_addrs);
837: options->queued_listen_addrs = NULL;
838: options->num_queued_listens = 0;
839: }
840:
1.310 djm 841: /*
1.329 djm 842: * Inform channels layer of permitopen options for a single forwarding
843: * direction (local/remote).
1.310 djm 844: */
1.329 djm 845: static void
846: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
847: char **opens, u_int num_opens)
1.310 djm 848: {
849: u_int i;
850: int port;
1.347 dtucker 851: char *host, *arg, *oarg, ch;
1.329 djm 852: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
853: const char *what = lookup_opcode_name(opcode);
1.310 djm 854:
1.329 djm 855: channel_clear_permission(ssh, FORWARD_ADM, where);
856: if (num_opens == 0)
1.310 djm 857: return; /* permit any */
858:
859: /* handle keywords: "any" / "none" */
1.329 djm 860: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 861: return;
1.329 djm 862: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
863: channel_disable_admin(ssh, where);
1.310 djm 864: return;
865: }
866: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 867: for (i = 0; i < num_opens; i++) {
868: oarg = arg = xstrdup(opens[i]);
1.348 dtucker 869: ch = '\0';
1.347 dtucker 870: host = hpdelim2(&arg, &ch);
871: if (host == NULL || ch == '/')
1.371 djm 872: fatal_f("missing host in %s", what);
1.310 djm 873: host = cleanhostname(host);
874: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.371 djm 875: fatal_f("bad port number in %s", what);
1.310 djm 876: /* Send it to channels layer */
1.329 djm 877: channel_add_permission(ssh, FORWARD_ADM,
878: where, host, port);
1.310 djm 879: free(oarg);
880: }
881: }
882:
1.329 djm 883: /*
884: * Inform channels layer of permitopen options from configuration.
885: */
886: void
887: process_permitopen(struct ssh *ssh, ServerOptions *options)
888: {
889: process_permitopen_list(ssh, sPermitOpen,
890: options->permitted_opens, options->num_permitted_opens);
1.330 djm 891: process_permitopen_list(ssh, sPermitListen,
892: options->permitted_listens,
893: options->num_permitted_listens);
1.329 djm 894: }
895:
1.226 dtucker 896: struct connection_info *
1.346 djm 897: get_connection_info(struct ssh *ssh, int populate, int use_dns)
1.226 dtucker 898: {
899: static struct connection_info ci;
900:
1.346 djm 901: if (ssh == NULL || !populate)
1.226 dtucker 902: return &ci;
1.286 djm 903: ci.host = auth_get_canonical_hostname(ssh, use_dns);
904: ci.address = ssh_remote_ipaddr(ssh);
905: ci.laddress = ssh_local_ipaddr(ssh);
906: ci.lport = ssh_local_port(ssh);
1.317 djm 907: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 908: return &ci;
909: }
910:
1.153 dtucker 911: /*
912: * The strategy for the Match blocks is that the config file is parsed twice.
913: *
914: * The first time is at startup. activep is initialized to 1 and the
915: * directives in the global context are processed and acted on. Hitting a
916: * Match directive unsets activep and the directives inside the block are
917: * checked for syntax only.
918: *
919: * The second time is after a connection has been established but before
920: * authentication. activep is initialized to 2 and global config directives
921: * are ignored since they have already been processed. If the criteria in a
922: * Match block is met, activep is set and the subsequent directives
923: * processed and actioned until EOF or another Match block unsets it. Any
924: * options set are copied into the main server config.
925: *
926: * Potential additions/improvements:
1.295 djm 927: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 928: *
929: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
930: * Match Address 192.168.0.*
931: * Tag trusted
932: * Match Group wheel
933: * Tag trusted
934: * Match Tag trusted
935: * AllowTcpForwarding yes
936: * GatewayPorts clientspecified
937: * [...]
938: *
939: * - Add a PermittedChannelRequests directive
940: * Match Group shell
941: * PermittedChannelRequests session,forwarded-tcpip
942: */
943:
944: static int
1.165 dtucker 945: match_cfg_line_group(const char *grps, int line, const char *user)
946: {
947: int result = 0;
948: struct passwd *pw;
949:
950: if (user == NULL)
951: goto out;
952:
953: if ((pw = getpwnam(user)) == NULL) {
954: debug("Can't match group at line %d because user %.100s does "
955: "not exist", line, user);
956: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
957: debug("Can't Match group because user %.100s not in any group "
958: "at line %d", user, line);
1.186 djm 959: } else if (ga_match_pattern_list(grps) != 1) {
960: debug("user %.100s does not match group list %.100s at line %d",
961: user, grps, line);
1.165 dtucker 962: } else {
1.186 djm 963: debug("user %.100s matched group list %.100s at line %d", user,
964: grps, line);
1.165 dtucker 965: result = 1;
966: }
967: out:
968: ga_free();
969: return result;
970: }
971:
1.319 dtucker 972: static void
973: match_test_missing_fatal(const char *criteria, const char *attrib)
974: {
975: fatal("'Match %s' in configuration but '%s' not in connection "
976: "test specification.", criteria, attrib);
977: }
978:
1.226 dtucker 979: /*
1.230 dtucker 980: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 981: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 982: * not match.
1.226 dtucker 983: */
1.165 dtucker 984: static int
1.226 dtucker 985: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 986: {
1.243 dtucker 987: int result = 1, attributes = 0, port;
1.153 dtucker 988: char *arg, *attrib, *cp = *condition;
989:
1.226 dtucker 990: if (ci == NULL)
1.153 dtucker 991: debug3("checking syntax for 'Match %s'", cp);
992: else
1.226 dtucker 993: debug3("checking match for '%s' user %s host %s addr %s "
994: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
995: ci->host ? ci->host : "(null)",
996: ci->address ? ci->address : "(null)",
997: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 998:
999: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.380 ! djm 1000: /* Terminate on comment */
! 1001: if (*attrib == '#') {
! 1002: cp = NULL; /* mark all arguments consumed */
! 1003: break;
! 1004: }
! 1005: arg = NULL;
1.243 dtucker 1006: attributes++;
1.380 ! djm 1007: /* Criterion "all" has no argument and must appear alone */
1.243 dtucker 1008: if (strcasecmp(attrib, "all") == 0) {
1.380 ! djm 1009: if (attributes > 1 || ((arg = strdelim(&cp)) != NULL &&
! 1010: *arg != '\0' && *arg != '#')) {
1.243 dtucker 1011: error("'all' cannot be combined with other "
1012: "Match attributes");
1013: return -1;
1014: }
1.380 ! djm 1015: if (arg != NULL && *arg == '#')
! 1016: cp = NULL; /* mark all arguments consumed */
1.243 dtucker 1017: *condition = cp;
1018: return 1;
1019: }
1.380 ! djm 1020: /* All other criteria require an argument */
! 1021: if ((arg = strdelim(&cp)) == NULL ||
! 1022: *arg == '\0' || *arg == '#') {
1.153 dtucker 1023: error("Missing Match criteria for %s", attrib);
1024: return -1;
1025: }
1026: if (strcasecmp(attrib, "user") == 0) {
1.351 dtucker 1027: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.153 dtucker 1028: result = 0;
1029: continue;
1030: }
1.319 dtucker 1031: if (ci->user == NULL)
1032: match_test_missing_fatal("User", "user");
1.349 dtucker 1033: if (match_usergroup_pattern_list(ci->user, arg) != 1)
1.153 dtucker 1034: result = 0;
1035: else
1036: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 1037: "line %d", ci->user, arg, line);
1.165 dtucker 1038: } else if (strcasecmp(attrib, "group") == 0) {
1.351 dtucker 1039: if (ci == NULL || (ci->test && ci->user == NULL)) {
1.226 dtucker 1040: result = 0;
1041: continue;
1042: }
1.319 dtucker 1043: if (ci->user == NULL)
1044: match_test_missing_fatal("Group", "user");
1.226 dtucker 1045: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 1046: case -1:
1047: return -1;
1048: case 0:
1049: result = 0;
1050: }
1.153 dtucker 1051: } else if (strcasecmp(attrib, "host") == 0) {
1.351 dtucker 1052: if (ci == NULL || (ci->test && ci->host == NULL)) {
1.153 dtucker 1053: result = 0;
1054: continue;
1055: }
1.319 dtucker 1056: if (ci->host == NULL)
1057: match_test_missing_fatal("Host", "host");
1.269 djm 1058: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1059: result = 0;
1060: else
1061: debug("connection from %.100s matched 'Host "
1.226 dtucker 1062: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1063: } else if (strcasecmp(attrib, "address") == 0) {
1.351 dtucker 1064: if (ci == NULL || (ci->test && ci->address == NULL)) {
1.369 dtucker 1065: if (addr_match_list(NULL, arg) != 0)
1066: fatal("Invalid Match address argument "
1067: "'%s' at line %d", arg, line);
1.226 dtucker 1068: result = 0;
1069: continue;
1070: }
1.319 dtucker 1071: if (ci->address == NULL)
1072: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1073: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1074: case 1:
1075: debug("connection from %.100s matched 'Address "
1.226 dtucker 1076: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1077: break;
1078: case 0:
1.183 djm 1079: case -1:
1.153 dtucker 1080: result = 0;
1.181 djm 1081: break;
1.183 djm 1082: case -2:
1.181 djm 1083: return -1;
1.153 dtucker 1084: }
1.226 dtucker 1085: } else if (strcasecmp(attrib, "localaddress") == 0){
1.351 dtucker 1086: if (ci == NULL || (ci->test && ci->laddress == NULL)) {
1.369 dtucker 1087: if (addr_match_list(NULL, arg) != 0)
1088: fatal("Invalid Match localaddress "
1089: "argument '%s' at line %d", arg,
1090: line);
1.226 dtucker 1091: result = 0;
1092: continue;
1093: }
1.319 dtucker 1094: if (ci->laddress == NULL)
1095: match_test_missing_fatal("LocalAddress",
1096: "laddr");
1.226 dtucker 1097: switch (addr_match_list(ci->laddress, arg)) {
1098: case 1:
1099: debug("connection from %.100s matched "
1100: "'LocalAddress %.100s' at line %d",
1101: ci->laddress, arg, line);
1102: break;
1103: case 0:
1104: case -1:
1105: result = 0;
1106: break;
1107: case -2:
1108: return -1;
1109: }
1110: } else if (strcasecmp(attrib, "localport") == 0) {
1111: if ((port = a2port(arg)) == -1) {
1112: error("Invalid LocalPort '%s' on Match line",
1113: arg);
1114: return -1;
1115: }
1.351 dtucker 1116: if (ci == NULL || (ci->test && ci->lport == -1)) {
1.226 dtucker 1117: result = 0;
1118: continue;
1119: }
1.319 dtucker 1120: if (ci->lport == 0)
1121: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1122: /* TODO support port lists */
1123: if (port == ci->lport)
1124: debug("connection from %.100s matched "
1125: "'LocalPort %d' at line %d",
1126: ci->laddress, port, line);
1127: else
1128: result = 0;
1.317 djm 1129: } else if (strcasecmp(attrib, "rdomain") == 0) {
1.351 dtucker 1130: if (ci == NULL || (ci->test && ci->rdomain == NULL)) {
1.317 djm 1131: result = 0;
1132: continue;
1133: }
1.351 dtucker 1134: if (ci->rdomain == NULL)
1135: match_test_missing_fatal("RDomain", "rdomain");
1.317 djm 1136: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1137: result = 0;
1138: else
1139: debug("user %.100s matched 'RDomain %.100s' at "
1140: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1141: } else {
1142: error("Unsupported Match attribute %s", attrib);
1143: return -1;
1144: }
1.243 dtucker 1145: }
1146: if (attributes == 0) {
1147: error("One or more attributes required for Match");
1148: return -1;
1.153 dtucker 1149: }
1.226 dtucker 1150: if (ci != NULL)
1.153 dtucker 1151: debug3("match %sfound", result ? "" : "not ");
1152: *condition = cp;
1153: return result;
1154: }
1155:
1.158 dtucker 1156: #define WHITESPACE " \t\r\n"
1157:
1.220 djm 1158: /* Multistate option parsing */
1159: struct multistate {
1160: char *key;
1161: int value;
1162: };
1.320 djm 1163: static const struct multistate multistate_flag[] = {
1164: { "yes", 1 },
1165: { "no", 0 },
1166: { NULL, -1 }
1167: };
1.363 djm 1168: static const struct multistate multistate_ignore_rhosts[] = {
1169: { "yes", IGNORE_RHOSTS_YES },
1170: { "no", IGNORE_RHOSTS_NO },
1171: { "shosts-only", IGNORE_RHOSTS_SHOSTS },
1172: { NULL, -1 }
1173: };
1.220 djm 1174: static const struct multistate multistate_addressfamily[] = {
1175: { "inet", AF_INET },
1176: { "inet6", AF_INET6 },
1177: { "any", AF_UNSPEC },
1178: { NULL, -1 }
1179: };
1180: static const struct multistate multistate_permitrootlogin[] = {
1181: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1182: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1183: { "forced-commands-only", PERMIT_FORCED_ONLY },
1184: { "yes", PERMIT_YES },
1185: { "no", PERMIT_NO },
1186: { NULL, -1 }
1187: };
1188: static const struct multistate multistate_compression[] = {
1.359 dtucker 1189: #ifdef WITH_ZLIB
1.337 sf 1190: { "yes", COMP_DELAYED },
1191: { "delayed", COMP_DELAYED },
1.359 dtucker 1192: #endif
1.220 djm 1193: { "no", COMP_NONE },
1194: { NULL, -1 }
1195: };
1196: static const struct multistate multistate_gatewayports[] = {
1197: { "clientspecified", 2 },
1198: { "yes", 1 },
1199: { "no", 0 },
1.222 djm 1200: { NULL, -1 }
1201: };
1.233 djm 1202: static const struct multistate multistate_tcpfwd[] = {
1203: { "yes", FORWARD_ALLOW },
1204: { "all", FORWARD_ALLOW },
1205: { "no", FORWARD_DENY },
1206: { "remote", FORWARD_REMOTE },
1207: { "local", FORWARD_LOCAL },
1208: { NULL, -1 }
1209: };
1.220 djm 1210:
1.360 djm 1211: static int
1212: process_server_config_line_depth(ServerOptions *options, char *line,
1.226 dtucker 1213: const char *filename, int linenum, int *activep,
1.365 djm 1214: struct connection_info *connectinfo, int *inc_flags, int depth,
1.360 djm 1215: struct include_list *includes)
1.1 deraadt 1216: {
1.380 ! djm 1217: char ch, *str, ***chararrayptr, **charptr, *arg, *arg2, *p, *keyword;
1.360 djm 1218: int cmdline = 0, *intptr, value, value2, n, port, oactive, r, found;
1.174 dtucker 1219: SyslogFacility *log_facility_ptr;
1220: LogLevel *log_level_ptr;
1.25 markus 1221: ServerOpCodes opcode;
1.329 djm 1222: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1223: size_t len;
1.237 dtucker 1224: long long val64;
1.220 djm 1225: const struct multistate *multistate_ptr;
1.322 dtucker 1226: const char *errstr;
1.360 djm 1227: struct include_item *item;
1228: glob_t gbuf;
1.380 ! djm 1229: char **oav = NULL, **av;
! 1230: int oac = 0, ac;
! 1231: int ret = -1;
1.303 djm 1232:
1233: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1234: if ((len = strlen(line)) == 0)
1235: return 0;
1236: for (len--; len > 0; len--) {
1237: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1238: break;
1239: line[len] = '\0';
1240: }
1.25 markus 1241:
1.380 ! djm 1242: str = line;
! 1243: if ((keyword = strdelim(&str)) == NULL)
1.147 djm 1244: return 0;
1.94 markus 1245: /* Ignore leading whitespace */
1.380 ! djm 1246: if (*keyword == '\0')
! 1247: keyword = strdelim(&str);
! 1248: if (!keyword || !*keyword || *keyword == '#')
1.94 markus 1249: return 0;
1.380 ! djm 1250: if (str == NULL || *str == '\0') {
! 1251: error("%s line %d: no argument after keyword \"%s\"",
! 1252: filename, linenum, keyword);
! 1253: return -1;
! 1254: }
1.94 markus 1255: intptr = NULL;
1256: charptr = NULL;
1.380 ! djm 1257: opcode = parse_token(keyword, filename, linenum, &flags);
! 1258:
! 1259: if (argv_split(str, &oac, &oav, 1) != 0) {
! 1260: error("%s line %d: invalid quotes", filename, linenum);
! 1261: return -1;
! 1262: }
! 1263: ac = oac;
! 1264: av = oav;
1.153 dtucker 1265:
1266: if (activep == NULL) { /* We are processing a command line directive */
1267: cmdline = 1;
1268: activep = &cmdline;
1269: }
1.360 djm 1270: if (*activep && opcode != sMatch && opcode != sInclude)
1.380 ! djm 1271: debug3("%s:%d setting %s %s", filename, linenum, keyword, str);
1.153 dtucker 1272: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1273: if (connectinfo == NULL) {
1.153 dtucker 1274: fatal("%s line %d: Directive '%s' is not allowed "
1.380 ! djm 1275: "within a Match block", filename, linenum, keyword);
1.153 dtucker 1276: } else { /* this is a directive we have already processed */
1.380 ! djm 1277: ret = 0;
! 1278: goto out;
1.153 dtucker 1279: }
1280: }
1281:
1.94 markus 1282: switch (opcode) {
1283: case sBadOption:
1.380 ! djm 1284: goto out;
1.94 markus 1285: case sPort:
1286: /* ignore ports from configfile if cmdline specifies ports */
1.380 ! djm 1287: if (options->ports_from_cmdline) {
! 1288: argv_consume(&ac);
! 1289: break;
! 1290: }
1.94 markus 1291: if (options->num_ports >= MAX_PORTS)
1292: fatal("%s line %d: too many ports.",
1293: filename, linenum);
1.380 ! djm 1294: arg = argv_next(&ac, &av);
1.94 markus 1295: if (!arg || *arg == '\0')
1296: fatal("%s line %d: missing port number.",
1297: filename, linenum);
1298: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1299: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1300: fatal("%s line %d: Badly formatted port number.",
1301: filename, linenum);
1302: break;
1.29 markus 1303:
1.94 markus 1304: case sLoginGraceTime:
1305: intptr = &options->login_grace_time;
1.180 djm 1306: parse_time:
1.380 ! djm 1307: arg = argv_next(&ac, &av);
1.94 markus 1308: if (!arg || *arg == '\0')
1309: fatal("%s line %d: missing time value.",
1310: filename, linenum);
1311: if ((value = convtime(arg)) == -1)
1312: fatal("%s line %d: invalid time value.",
1313: filename, linenum);
1.268 djm 1314: if (*activep && *intptr == -1)
1.94 markus 1315: *intptr = value;
1316: break;
1317:
1318: case sListenAddress:
1.380 ! djm 1319: arg = argv_next(&ac, &av);
1.139 djm 1320: if (arg == NULL || *arg == '\0')
1321: fatal("%s line %d: missing address",
1.94 markus 1322: filename, linenum);
1.144 dtucker 1323: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1324: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1325: && strchr(p+1, ':') != NULL) {
1.315 djm 1326: port = 0;
1327: p = arg;
1328: } else {
1.347 dtucker 1329: arg2 = NULL;
1.348 dtucker 1330: ch = '\0';
1.347 dtucker 1331: p = hpdelim2(&arg, &ch);
1332: if (p == NULL || ch == '/')
1.315 djm 1333: fatal("%s line %d: bad address:port usage",
1334: filename, linenum);
1335: p = cleanhostname(p);
1336: if (arg == NULL)
1337: port = 0;
1338: else if ((port = a2port(arg)) <= 0)
1339: fatal("%s line %d: bad port number",
1340: filename, linenum);
1341: }
1342: /* Optional routing table */
1343: arg2 = NULL;
1.380 ! djm 1344: if ((arg = argv_next(&ac, &av)) != NULL) {
1.315 djm 1345: if (strcmp(arg, "rdomain") != 0 ||
1.380 ! djm 1346: (arg2 = argv_next(&ac, &av)) == NULL)
1.315 djm 1347: fatal("%s line %d: bad ListenAddress syntax",
1348: filename, linenum);
1349: if (!valid_rdomain(arg2))
1350: fatal("%s line %d: bad routing domain",
1351: filename, linenum);
1.144 dtucker 1352: }
1.315 djm 1353: queue_listen_addr(options, p, arg2, port);
1.25 markus 1354:
1.138 djm 1355: break;
1356:
1357: case sAddressFamily:
1.220 djm 1358: intptr = &options->address_family;
1359: multistate_ptr = multistate_addressfamily;
1360: parse_multistate:
1.380 ! djm 1361: arg = argv_next(&ac, &av);
1.141 markus 1362: if (!arg || *arg == '\0')
1.220 djm 1363: fatal("%s line %d: missing argument.",
1.141 markus 1364: filename, linenum);
1.220 djm 1365: value = -1;
1366: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1367: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1368: value = multistate_ptr[i].value;
1369: break;
1370: }
1371: }
1372: if (value == -1)
1373: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1374: filename, linenum, arg);
1.220 djm 1375: if (*activep && *intptr == -1)
1.138 djm 1376: *intptr = value;
1.94 markus 1377: break;
1378:
1379: case sHostKeyFile:
1.380 ! djm 1380: arg = argv_next(&ac, &av);
1.94 markus 1381: if (!arg || *arg == '\0')
1382: fatal("%s line %d: missing file name.",
1383: filename, linenum);
1.344 djm 1384: if (*activep) {
1385: servconf_add_hostkey(filename, linenum,
1386: options, arg, 1);
1387: }
1.94 markus 1388: break;
1.76 stevesk 1389:
1.240 markus 1390: case sHostKeyAgent:
1391: charptr = &options->host_key_agent;
1.380 ! djm 1392: arg = argv_next(&ac, &av);
1.240 markus 1393: if (!arg || *arg == '\0')
1394: fatal("%s line %d: missing socket name.",
1395: filename, linenum);
1396: if (*activep && *charptr == NULL)
1397: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1398: xstrdup(arg) : derelativise_path(arg);
1399: break;
1400:
1.203 djm 1401: case sHostCertificate:
1.380 ! djm 1402: arg = argv_next(&ac, &av);
1.314 djm 1403: if (!arg || *arg == '\0')
1404: fatal("%s line %d: missing file name.",
1405: filename, linenum);
1406: if (*activep)
1407: servconf_add_hostcert(filename, linenum, options, arg);
1408: break;
1.203 djm 1409:
1.94 markus 1410: case sPidFile:
1411: charptr = &options->pid_file;
1.314 djm 1412: parse_filename:
1.380 ! djm 1413: arg = argv_next(&ac, &av);
1.314 djm 1414: if (!arg || *arg == '\0')
1415: fatal("%s line %d: missing file name.",
1416: filename, linenum);
1417: if (*activep && *charptr == NULL) {
1418: *charptr = derelativise_path(arg);
1419: /* increase optional counter */
1420: if (intptr != NULL)
1421: *intptr = *intptr + 1;
1422: }
1423: break;
1.25 markus 1424:
1.378 dtucker 1425: case sModuliFile:
1426: charptr = &options->moduli_file;
1427: goto parse_filename;
1428:
1.94 markus 1429: case sPermitRootLogin:
1430: intptr = &options->permit_root_login;
1.220 djm 1431: multistate_ptr = multistate_permitrootlogin;
1432: goto parse_multistate;
1.36 markus 1433:
1.94 markus 1434: case sIgnoreRhosts:
1435: intptr = &options->ignore_rhosts;
1.363 djm 1436: multistate_ptr = multistate_ignore_rhosts;
1.320 djm 1437: goto parse_multistate;
1.94 markus 1438:
1439: case sIgnoreUserKnownHosts:
1440: intptr = &options->ignore_user_known_hosts;
1.363 djm 1441: parse_flag:
1442: multistate_ptr = multistate_flag;
1443: goto parse_multistate;
1.94 markus 1444:
1445: case sHostbasedAuthentication:
1446: intptr = &options->hostbased_authentication;
1447: goto parse_flag;
1448:
1449: case sHostbasedUsesNameFromPacketOnly:
1450: intptr = &options->hostbased_uses_name_from_packet_only;
1451: goto parse_flag;
1452:
1.375 dtucker 1453: case sHostbasedAcceptedAlgorithms:
1454: charptr = &options->hostbased_accepted_algos;
1.374 dtucker 1455: parse_pubkey_algos:
1.380 ! djm 1456: arg = argv_next(&ac, &av);
1.258 djm 1457: if (!arg || *arg == '\0')
1458: fatal("%s line %d: Missing argument.",
1459: filename, linenum);
1.304 djm 1460: if (*arg != '-' &&
1.352 naddy 1461: !sshkey_names_valid2(*arg == '+' || *arg == '^' ?
1462: arg + 1 : arg, 1))
1.258 djm 1463: fatal("%s line %d: Bad key types '%s'.",
1464: filename, linenum, arg ? arg : "<NONE>");
1465: if (*activep && *charptr == NULL)
1466: *charptr = xstrdup(arg);
1467: break;
1468:
1.276 markus 1469: case sHostKeyAlgorithms:
1470: charptr = &options->hostkeyalgorithms;
1.374 dtucker 1471: goto parse_pubkey_algos;
1.276 markus 1472:
1.341 djm 1473: case sCASignatureAlgorithms:
1474: charptr = &options->ca_sign_algorithms;
1.374 dtucker 1475: goto parse_pubkey_algos;
1.341 djm 1476:
1.94 markus 1477: case sPubkeyAuthentication:
1478: intptr = &options->pubkey_authentication;
1479: goto parse_flag;
1.119 jakob 1480:
1.374 dtucker 1481: case sPubkeyAcceptedAlgorithms:
1482: charptr = &options->pubkey_accepted_algos;
1483: goto parse_pubkey_algos;
1.258 djm 1484:
1.354 djm 1485: case sPubkeyAuthOptions:
1486: intptr = &options->pubkey_auth_options;
1487: value = 0;
1.380 ! djm 1488: while ((arg = argv_next(&ac, &av)) != NULL) {
1.354 djm 1489: if (strcasecmp(arg, "none") == 0)
1490: continue;
1491: if (strcasecmp(arg, "touch-required") == 0)
1492: value |= PUBKEYAUTH_TOUCH_REQUIRED;
1.368 djm 1493: else if (strcasecmp(arg, "verify-required") == 0)
1494: value |= PUBKEYAUTH_VERIFY_REQUIRED;
1.354 djm 1495: else {
1.380 ! djm 1496: error("%s line %d: unsupported %s option %s",
! 1497: filename, linenum, keyword, arg);
! 1498: goto out;
1.354 djm 1499: }
1500: }
1501: if (*activep && *intptr == -1)
1502: *intptr = value;
1503: break;
1504:
1.94 markus 1505: case sKerberosAuthentication:
1506: intptr = &options->kerberos_authentication;
1507: goto parse_flag;
1508:
1509: case sKerberosOrLocalPasswd:
1510: intptr = &options->kerberos_or_local_passwd;
1511: goto parse_flag;
1512:
1513: case sKerberosTicketCleanup:
1514: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1515: goto parse_flag;
1516:
1517: case sKerberosGetAFSToken:
1518: intptr = &options->kerberos_get_afs_token;
1.125 markus 1519: goto parse_flag;
1520:
1521: case sGssAuthentication:
1522: intptr = &options->gss_authentication;
1523: goto parse_flag;
1524:
1525: case sGssCleanupCreds:
1526: intptr = &options->gss_cleanup_creds;
1.271 djm 1527: goto parse_flag;
1528:
1529: case sGssStrictAcceptor:
1530: intptr = &options->gss_strict_acceptor;
1.94 markus 1531: goto parse_flag;
1532:
1533: case sPasswordAuthentication:
1534: intptr = &options->password_authentication;
1535: goto parse_flag;
1536:
1537: case sKbdInteractiveAuthentication:
1538: intptr = &options->kbd_interactive_authentication;
1539: goto parse_flag;
1540:
1541: case sChallengeResponseAuthentication:
1542: intptr = &options->challenge_response_authentication;
1543: goto parse_flag;
1544:
1545: case sPrintMotd:
1546: intptr = &options->print_motd;
1547: goto parse_flag;
1548:
1549: case sPrintLastLog:
1550: intptr = &options->print_lastlog;
1551: goto parse_flag;
1552:
1553: case sX11Forwarding:
1554: intptr = &options->x11_forwarding;
1555: goto parse_flag;
1556:
1557: case sX11DisplayOffset:
1558: intptr = &options->x11_display_offset;
1.293 naddy 1559: parse_int:
1.380 ! djm 1560: arg = argv_next(&ac, &av);
1.322 dtucker 1561: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 ! djm 1562: fatal("%s line %d: %s integer value %s.",
! 1563: filename, linenum, keyword, errstr);
1.293 naddy 1564: if (*activep && *intptr == -1)
1565: *intptr = value;
1566: break;
1.99 stevesk 1567:
1568: case sX11UseLocalhost:
1569: intptr = &options->x11_use_localhost;
1570: goto parse_flag;
1.94 markus 1571:
1572: case sXAuthLocation:
1573: charptr = &options->xauth_location;
1574: goto parse_filename;
1575:
1.244 djm 1576: case sPermitTTY:
1577: intptr = &options->permit_tty;
1578: goto parse_flag;
1579:
1.250 djm 1580: case sPermitUserRC:
1581: intptr = &options->permit_user_rc;
1582: goto parse_flag;
1583:
1.94 markus 1584: case sStrictModes:
1585: intptr = &options->strict_modes;
1586: goto parse_flag;
1587:
1.129 markus 1588: case sTCPKeepAlive:
1589: intptr = &options->tcp_keep_alive;
1.94 markus 1590: goto parse_flag;
1591:
1592: case sEmptyPasswd:
1593: intptr = &options->permit_empty_passwd;
1.113 markus 1594: goto parse_flag;
1595:
1596: case sPermitUserEnvironment:
1597: intptr = &options->permit_user_env;
1.367 djm 1598: charptr = &options->permit_user_env_allowlist;
1.380 ! djm 1599: arg = argv_next(&ac, &av);
1.334 djm 1600: if (!arg || *arg == '\0')
1.380 ! djm 1601: fatal("%s line %d: %s missing argument.",
! 1602: filename, linenum, keyword);
1.334 djm 1603: value = 0;
1604: p = NULL;
1605: if (strcmp(arg, "yes") == 0)
1606: value = 1;
1607: else if (strcmp(arg, "no") == 0)
1608: value = 0;
1609: else {
1610: /* Pattern-list specified */
1611: value = 1;
1612: p = xstrdup(arg);
1613: }
1614: if (*activep && *intptr == -1) {
1615: *intptr = value;
1616: *charptr = p;
1617: p = NULL;
1618: }
1619: free(p);
1620: break;
1.94 markus 1621:
1.111 markus 1622: case sCompression:
1623: intptr = &options->compression;
1.220 djm 1624: multistate_ptr = multistate_compression;
1625: goto parse_multistate;
1.94 markus 1626:
1.235 dtucker 1627: case sRekeyLimit:
1.380 ! djm 1628: arg = argv_next(&ac, &av);
1.235 dtucker 1629: if (!arg || *arg == '\0')
1.380 ! djm 1630: fatal("%s line %d: %s missing argument.",
! 1631: filename, linenum, keyword);
1.235 dtucker 1632: if (strcmp(arg, "default") == 0) {
1633: val64 = 0;
1634: } else {
1.236 dtucker 1635: if (scan_scaled(arg, &val64) == -1)
1.380 ! djm 1636: fatal("%.200s line %d: Bad %s number '%s': %s",
! 1637: filename, linenum, keyword,
! 1638: arg, strerror(errno));
1.235 dtucker 1639: if (val64 != 0 && val64 < 16)
1.380 ! djm 1640: fatal("%.200s line %d: %s too small",
! 1641: filename, linenum, keyword);
1.235 dtucker 1642: }
1643: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1644: options->rekey_limit = val64;
1.380 ! djm 1645: if (ac != 0) { /* optional rekey interval present */
! 1646: if (strcmp(av[0], "none") == 0) {
! 1647: (void)argv_next(&ac, &av); /* discard */
1.235 dtucker 1648: break;
1649: }
1650: intptr = &options->rekey_interval;
1651: goto parse_time;
1652: }
1653: break;
1654:
1.94 markus 1655: case sGatewayPorts:
1.251 millert 1656: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1657: multistate_ptr = multistate_gatewayports;
1658: goto parse_multistate;
1.25 markus 1659:
1.122 markus 1660: case sUseDNS:
1661: intptr = &options->use_dns;
1.94 markus 1662: goto parse_flag;
1.53 markus 1663:
1.94 markus 1664: case sLogFacility:
1.174 dtucker 1665: log_facility_ptr = &options->log_facility;
1.380 ! djm 1666: arg = argv_next(&ac, &av);
1.94 markus 1667: value = log_facility_number(arg);
1.101 markus 1668: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1669: fatal("%.200s line %d: unsupported log facility '%s'",
1670: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1671: if (*log_facility_ptr == -1)
1672: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1673: break;
1.25 markus 1674:
1.94 markus 1675: case sLogLevel:
1.174 dtucker 1676: log_level_ptr = &options->log_level;
1.380 ! djm 1677: arg = argv_next(&ac, &av);
1.94 markus 1678: value = log_level_number(arg);
1.101 markus 1679: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1680: fatal("%.200s line %d: unsupported log level '%s'",
1681: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1682: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1683: *log_level_ptr = (LogLevel) value;
1.94 markus 1684: break;
1685:
1.370 djm 1686: case sLogVerbose:
1.380 ! djm 1687: found = options->num_log_verbose == 0;
! 1688: i = 0;
! 1689: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1690: if (*arg == '\0') {
! 1691: error("%s line %d: keyword %s empty argument",
! 1692: filename, linenum, keyword);
! 1693: goto out;
! 1694: }
! 1695: /* Allow "none" only in first position */
! 1696: if (strcasecmp(arg, "none") == 0) {
! 1697: if (i > 0 || ac > 0) {
! 1698: error("%s line %d: keyword %s \"none\" "
! 1699: "argument must appear alone.",
! 1700: filename, linenum, keyword);
! 1701: goto out;
! 1702: }
! 1703: }
! 1704: i++;
! 1705: if (!found || !*activep)
1.370 djm 1706: continue;
1.380 ! djm 1707: opt_array_append(filename, linenum, keyword,
1.370 djm 1708: &options->log_verbose, &options->num_log_verbose,
1709: arg);
1710: }
1711: break;
1712:
1.94 markus 1713: case sAllowTcpForwarding:
1714: intptr = &options->allow_tcp_forwarding;
1.233 djm 1715: multistate_ptr = multistate_tcpfwd;
1716: goto parse_multistate;
1.102 provos 1717:
1.251 millert 1718: case sAllowStreamLocalForwarding:
1719: intptr = &options->allow_streamlocal_forwarding;
1720: multistate_ptr = multistate_tcpfwd;
1721: goto parse_multistate;
1722:
1.178 pyr 1723: case sAllowAgentForwarding:
1724: intptr = &options->allow_agent_forwarding;
1725: goto parse_flag;
1726:
1.301 djm 1727: case sDisableForwarding:
1728: intptr = &options->disable_forwarding;
1729: goto parse_flag;
1730:
1.94 markus 1731: case sAllowUsers:
1.380 ! djm 1732: chararrayptr = &options->allow_users;
! 1733: uintptr = &options->num_allow_users;
! 1734: parse_allowdenyusers:
! 1735: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1736: if (*arg == '\0' ||
! 1737: match_user(NULL, NULL, NULL, arg) == -1)
! 1738: fatal("%s line %d: invalid %s pattern: \"%s\"",
! 1739: filename, linenum, keyword, arg);
1.227 markus 1740: if (!*activep)
1741: continue;
1.380 ! djm 1742: opt_array_append(filename, linenum, keyword,
! 1743: chararrayptr, uintptr, arg);
1.94 markus 1744: }
1745: break;
1.25 markus 1746:
1.94 markus 1747: case sDenyUsers:
1.380 ! djm 1748: chararrayptr = &options->deny_users;
! 1749: uintptr = &options->num_deny_users;
! 1750: goto parse_allowdenyusers;
1.25 markus 1751:
1.94 markus 1752: case sAllowGroups:
1.380 ! djm 1753: chararrayptr = &options->allow_groups;
! 1754: uintptr = &options->num_allow_groups;
! 1755: parse_allowdenygroups:
! 1756: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1757: if (*arg == '\0')
! 1758: fatal("%s line %d: empty %s pattern",
! 1759: filename, linenum, keyword);
1.227 markus 1760: if (!*activep)
1761: continue;
1.380 ! djm 1762: opt_array_append(filename, linenum, keyword,
! 1763: chararrayptr, uintptr, arg);
1.94 markus 1764: }
1765: break;
1.33 markus 1766:
1.94 markus 1767: case sDenyGroups:
1.380 ! djm 1768: chararrayptr = &options->deny_groups;
! 1769: uintptr = &options->num_deny_groups;
! 1770: goto parse_allowdenygroups;
1.66 markus 1771:
1.94 markus 1772: case sCiphers:
1.380 ! djm 1773: arg = argv_next(&ac, &av);
1.94 markus 1774: if (!arg || *arg == '\0')
1.380 ! djm 1775: fatal("%s line %d: %s missing argument.",
! 1776: filename, linenum, keyword);
1.352 naddy 1777: if (*arg != '-' &&
1778: !ciphers_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1779: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1780: filename, linenum, arg ? arg : "<NONE>");
1781: if (options->ciphers == NULL)
1782: options->ciphers = xstrdup(arg);
1783: break;
1.33 markus 1784:
1.94 markus 1785: case sMacs:
1.380 ! djm 1786: arg = argv_next(&ac, &av);
1.94 markus 1787: if (!arg || *arg == '\0')
1.380 ! djm 1788: fatal("%s line %d: %s missing argument.",
! 1789: filename, linenum, keyword);
1.352 naddy 1790: if (*arg != '-' &&
1791: !mac_valid(*arg == '+' || *arg == '^' ? arg + 1 : arg))
1.94 markus 1792: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1793: filename, linenum, arg ? arg : "<NONE>");
1794: if (options->macs == NULL)
1795: options->macs = xstrdup(arg);
1.211 djm 1796: break;
1797:
1798: case sKexAlgorithms:
1.380 ! djm 1799: arg = argv_next(&ac, &av);
1.211 djm 1800: if (!arg || *arg == '\0')
1.380 ! djm 1801: fatal("%s line %d: %s missing argument.",
! 1802: filename, linenum, keyword);
1.304 djm 1803: if (*arg != '-' &&
1.352 naddy 1804: !kex_names_valid(*arg == '+' || *arg == '^' ?
1805: arg + 1 : arg))
1.211 djm 1806: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1807: filename, linenum, arg ? arg : "<NONE>");
1808: if (options->kex_algorithms == NULL)
1809: options->kex_algorithms = xstrdup(arg);
1.94 markus 1810: break;
1.43 jakob 1811:
1.94 markus 1812: case sSubsystem:
1813: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1814: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1815: filename, linenum);
1.94 markus 1816: }
1.380 ! djm 1817: arg = argv_next(&ac, &av);
1.94 markus 1818: if (!arg || *arg == '\0')
1.380 ! djm 1819: fatal("%s line %d: %s missing argument.",
! 1820: filename, linenum, keyword);
1.153 dtucker 1821: if (!*activep) {
1.380 ! djm 1822: arg = argv_next(&ac, &av);
1.153 dtucker 1823: break;
1824: }
1.94 markus 1825: for (i = 0; i < options->num_subsystems; i++)
1826: if (strcmp(arg, options->subsystem_name[i]) == 0)
1.380 ! djm 1827: fatal("%s line %d: Subsystem '%s' "
! 1828: "already defined.", filename, linenum, arg);
1.94 markus 1829: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.380 ! djm 1830: arg = argv_next(&ac, &av);
1.94 markus 1831: if (!arg || *arg == '\0')
1832: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1833: filename, linenum);
1.94 markus 1834: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1835:
1836: /* Collect arguments (separate to executable) */
1837: p = xstrdup(arg);
1838: len = strlen(p) + 1;
1.380 ! djm 1839: while ((arg = argv_next(&ac, &av)) != NULL) {
1.151 djm 1840: len += 1 + strlen(arg);
1.264 deraadt 1841: p = xreallocarray(p, 1, len);
1.151 djm 1842: strlcat(p, " ", len);
1843: strlcat(p, arg, len);
1844: }
1845: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1846: options->num_subsystems++;
1847: break;
1.46 markus 1848:
1.94 markus 1849: case sMaxStartups:
1.380 ! djm 1850: arg = argv_next(&ac, &av);
1.94 markus 1851: if (!arg || *arg == '\0')
1.380 ! djm 1852: fatal("%s line %d: %s missing argument.",
! 1853: filename, linenum, keyword);
1.94 markus 1854: if ((n = sscanf(arg, "%d:%d:%d",
1855: &options->max_startups_begin,
1856: &options->max_startups_rate,
1857: &options->max_startups)) == 3) {
1858: if (options->max_startups_begin >
1859: options->max_startups ||
1860: options->max_startups_rate > 100 ||
1861: options->max_startups_rate < 1)
1.380 ! djm 1862: fatal("%s line %d: Invalid %s spec.",
! 1863: filename, linenum, keyword);
1.94 markus 1864: } else if (n != 1)
1.380 ! djm 1865: fatal("%s line %d: Invalid %s spec.",
! 1866: filename, linenum, keyword);
1.94 markus 1867: else
1868: options->max_startups = options->max_startups_begin;
1869: break;
1.133 dtucker 1870:
1.372 dtucker 1871: case sPerSourceNetBlockSize:
1.380 ! djm 1872: arg = argv_next(&ac, &av);
1.372 dtucker 1873: if (!arg || *arg == '\0')
1.380 ! djm 1874: fatal("%s line %d: %s missing argument.",
! 1875: filename, linenum, keyword);
1.372 dtucker 1876: switch (n = sscanf(arg, "%d:%d", &value, &value2)) {
1877: case 2:
1878: if (value2 < 0 || value2 > 128)
1879: n = -1;
1880: /* FALLTHROUGH */
1881: case 1:
1882: if (value < 0 || value > 32)
1883: n = -1;
1884: }
1885: if (n != 1 && n != 2)
1.380 ! djm 1886: fatal("%s line %d: Invalid %s spec.",
! 1887: filename, linenum, keyword);
1.372 dtucker 1888: if (*activep) {
1889: options->per_source_masklen_ipv4 = value;
1890: options->per_source_masklen_ipv6 = value2;
1891: }
1892: break;
1893:
1894: case sPerSourceMaxStartups:
1.380 ! djm 1895: arg = argv_next(&ac, &av);
1.372 dtucker 1896: if (!arg || *arg == '\0')
1.380 ! djm 1897: fatal("%s line %d: %s missing argument.",
! 1898: filename, linenum, keyword);
1.372 dtucker 1899: if (strcmp(arg, "none") == 0) { /* no limit */
1900: value = INT_MAX;
1901: } else {
1902: if ((errstr = atoi_err(arg, &value)) != NULL)
1.380 ! djm 1903: fatal("%s line %d: %s integer value %s.",
! 1904: filename, linenum, keyword, errstr);
1.372 dtucker 1905: }
1906: if (*activep)
1907: options->per_source_max_startups = value;
1908: break;
1909:
1.133 dtucker 1910: case sMaxAuthTries:
1911: intptr = &options->max_authtries;
1912: goto parse_int;
1.94 markus 1913:
1.180 djm 1914: case sMaxSessions:
1915: intptr = &options->max_sessions;
1916: goto parse_int;
1917:
1.94 markus 1918: case sBanner:
1919: charptr = &options->banner;
1920: goto parse_filename;
1.176 djm 1921:
1.94 markus 1922: /*
1923: * These options can contain %X options expanded at
1924: * connect time, so that you can specify paths like:
1925: *
1926: * AuthorizedKeysFile /etc/ssh_keys/%u
1927: */
1928: case sAuthorizedKeysFile:
1.380 ! djm 1929: uvalue = options->num_authkeys_files;
! 1930: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1931: if (*arg == '\0') {
! 1932: error("%s line %d: keyword %s empty argument",
! 1933: filename, linenum, keyword);
! 1934: goto out;
! 1935: }
! 1936: arg2 = tilde_expand_filename(arg, getuid());
! 1937: if (*activep && uvalue == 0) {
! 1938: opt_array_append(filename, linenum, keyword,
1.314 djm 1939: &options->authorized_keys_files,
1.380 ! djm 1940: &options->num_authkeys_files, arg2);
1.219 djm 1941: }
1.380 ! djm 1942: free(arg2);
1.219 djm 1943: }
1.380 ! djm 1944: break;
1.219 djm 1945:
1.208 djm 1946: case sAuthorizedPrincipalsFile:
1947: charptr = &options->authorized_principals_file;
1.380 ! djm 1948: arg = argv_next(&ac, &av);
1.205 djm 1949: if (!arg || *arg == '\0')
1.380 ! djm 1950: fatal("%s line %d: %s missing argument.",
! 1951: filename, linenum, keyword);
1.205 djm 1952: if (*activep && *charptr == NULL) {
1.206 markus 1953: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1954: /* increase optional counter */
1955: if (intptr != NULL)
1956: *intptr = *intptr + 1;
1957: }
1958: break;
1.94 markus 1959:
1960: case sClientAliveInterval:
1961: intptr = &options->client_alive_interval;
1962: goto parse_time;
1963:
1964: case sClientAliveCountMax:
1965: intptr = &options->client_alive_count_max;
1966: goto parse_int;
1.131 djm 1967:
1968: case sAcceptEnv:
1.380 ! djm 1969: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1970: if (*arg == '\0' || strchr(arg, '=') != NULL)
1.131 djm 1971: fatal("%s line %d: Invalid environment name.",
1972: filename, linenum);
1.153 dtucker 1973: if (!*activep)
1.227 markus 1974: continue;
1.380 ! djm 1975: opt_array_append(filename, linenum, keyword,
1.314 djm 1976: &options->accept_env, &options->num_accept_env,
1977: arg);
1.131 djm 1978: }
1979: break;
1.145 reyk 1980:
1.332 djm 1981: case sSetEnv:
1982: uvalue = options->num_setenv;
1.380 ! djm 1983: while ((arg = argv_next(&ac, &av)) != NULL) {
! 1984: if (*arg == '\0' || strchr(arg, '=') == NULL)
1.332 djm 1985: fatal("%s line %d: Invalid environment.",
1986: filename, linenum);
1987: if (!*activep || uvalue != 0)
1988: continue;
1.380 ! djm 1989: opt_array_append(filename, linenum, keyword,
1.332 djm 1990: &options->setenv, &options->num_setenv, arg);
1991: }
1992: break;
1993:
1.145 reyk 1994: case sPermitTunnel:
1995: intptr = &options->permit_tun;
1.380 ! djm 1996: arg = argv_next(&ac, &av);
1.146 reyk 1997: if (!arg || *arg == '\0')
1.380 ! djm 1998: fatal("%s line %d: %s missing argument.",
! 1999: filename, linenum, keyword);
1.182 dtucker 2000: value = -1;
2001: for (i = 0; tunmode_desc[i].val != -1; i++)
2002: if (strcmp(tunmode_desc[i].text, arg) == 0) {
2003: value = tunmode_desc[i].val;
2004: break;
2005: }
2006: if (value == -1)
1.380 ! djm 2007: fatal("%s line %d: bad %s argument %s",
! 2008: filename, linenum, keyword, arg);
1.268 djm 2009: if (*activep && *intptr == -1)
1.146 reyk 2010: *intptr = value;
2011: break;
1.94 markus 2012:
1.360 djm 2013: case sInclude:
2014: if (cmdline) {
2015: fatal("Include directive not supported as a "
2016: "command-line option");
2017: }
2018: value = 0;
1.380 ! djm 2019: while ((arg2 = argv_next(&ac, &av)) != NULL) {
! 2020: if (*arg2 == '\0') {
! 2021: error("%s line %d: keyword %s empty argument",
! 2022: filename, linenum, keyword);
! 2023: goto out;
! 2024: }
1.360 djm 2025: value++;
2026: found = 0;
2027: if (*arg2 != '/' && *arg2 != '~') {
1.361 markus 2028: xasprintf(&arg, "%s/%s", SSHDIR, arg2);
1.360 djm 2029: } else
2030: arg = xstrdup(arg2);
2031:
2032: /*
2033: * Don't let included files clobber the containing
2034: * file's Match state.
2035: */
2036: oactive = *activep;
2037:
2038: /* consult cache of include files */
2039: TAILQ_FOREACH(item, includes, entry) {
2040: if (strcmp(item->selector, arg) != 0)
2041: continue;
2042: if (item->filename != NULL) {
2043: parse_server_config_depth(options,
2044: item->filename, item->contents,
2045: includes, connectinfo,
1.365 djm 2046: (*inc_flags & SSHCFG_MATCH_ONLY
2047: ? SSHCFG_MATCH_ONLY : (oactive
2048: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2049: activep, depth + 1);
2050: }
2051: found = 1;
2052: *activep = oactive;
2053: }
2054: if (found != 0) {
2055: free(arg);
2056: continue;
2057: }
2058:
2059: /* requested glob was not in cache */
2060: debug2("%s line %d: new include %s",
2061: filename, linenum, arg);
2062: if ((r = glob(arg, 0, NULL, &gbuf)) != 0) {
2063: if (r != GLOB_NOMATCH) {
1.380 ! djm 2064: fatal("%s line %d: include \"%s\" glob "
! 2065: "failed", filename, linenum, arg);
1.360 djm 2066: }
2067: /*
2068: * If no entry matched then record a
2069: * placeholder to skip later glob calls.
2070: */
2071: debug2("%s line %d: no match for %s",
2072: filename, linenum, arg);
2073: item = xcalloc(1, sizeof(*item));
2074: item->selector = strdup(arg);
2075: TAILQ_INSERT_TAIL(includes,
2076: item, entry);
2077: }
2078: if (gbuf.gl_pathc > INT_MAX)
1.371 djm 2079: fatal_f("too many glob results");
1.360 djm 2080: for (n = 0; n < (int)gbuf.gl_pathc; n++) {
2081: debug2("%s line %d: including %s",
2082: filename, linenum, gbuf.gl_pathv[n]);
2083: item = xcalloc(1, sizeof(*item));
2084: item->selector = strdup(arg);
2085: item->filename = strdup(gbuf.gl_pathv[n]);
1.371 djm 2086: if ((item->contents = sshbuf_new()) == NULL)
2087: fatal_f("sshbuf_new failed");
1.360 djm 2088: load_server_config(item->filename,
2089: item->contents);
2090: parse_server_config_depth(options,
2091: item->filename, item->contents,
2092: includes, connectinfo,
1.365 djm 2093: (*inc_flags & SSHCFG_MATCH_ONLY
2094: ? SSHCFG_MATCH_ONLY : (oactive
2095: ? 0 : SSHCFG_NEVERMATCH)),
1.360 djm 2096: activep, depth + 1);
2097: *activep = oactive;
2098: TAILQ_INSERT_TAIL(includes, item, entry);
2099: }
2100: globfree(&gbuf);
2101: free(arg);
2102: }
2103: if (value == 0) {
1.380 ! djm 2104: fatal("%s line %d: %s missing filename argument",
! 2105: filename, linenum, keyword);
1.360 djm 2106: }
2107: break;
2108:
1.153 dtucker 2109: case sMatch:
2110: if (cmdline)
2111: fatal("Match directive not supported as a command-line "
1.379 djm 2112: "option");
1.380 ! djm 2113: value = match_cfg_line(&str, linenum,
1.365 djm 2114: (*inc_flags & SSHCFG_NEVERMATCH ? NULL : connectinfo));
1.153 dtucker 2115: if (value < 0)
2116: fatal("%s line %d: Bad Match condition", filename,
2117: linenum);
1.365 djm 2118: *activep = (*inc_flags & SSHCFG_NEVERMATCH) ? 0 : value;
1.380 ! djm 2119: /*
! 2120: * The MATCH_ONLY flag is applicable only until the first
! 2121: * match block.
! 2122: */
1.365 djm 2123: *inc_flags &= ~SSHCFG_MATCH_ONLY;
1.380 ! djm 2124: /*
! 2125: * If match_cfg_line() didn't consume all its arguments then
! 2126: * arrange for the extra arguments check below to fail.
! 2127: */
! 2128: if (str == NULL || *str == '\0')
! 2129: argv_consume(&ac);
1.156 dtucker 2130: break;
2131:
1.330 djm 2132: case sPermitListen:
1.156 dtucker 2133: case sPermitOpen:
1.330 djm 2134: if (opcode == sPermitListen) {
2135: uintptr = &options->num_permitted_listens;
2136: chararrayptr = &options->permitted_listens;
1.329 djm 2137: } else {
2138: uintptr = &options->num_permitted_opens;
2139: chararrayptr = &options->permitted_opens;
2140: }
1.380 ! djm 2141: arg = argv_next(&ac, &av);
1.156 dtucker 2142: if (!arg || *arg == '\0')
1.380 ! djm 2143: fatal("%s line %d: %s missing argument.",
! 2144: filename, linenum, keyword);
1.329 djm 2145: uvalue = *uintptr; /* modified later */
1.310 djm 2146: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 2147: if (*activep && uvalue == 0) {
2148: *uintptr = 1;
2149: *chararrayptr = xcalloc(1,
2150: sizeof(**chararrayptr));
2151: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 2152: }
1.156 dtucker 2153: break;
2154: }
1.380 ! djm 2155: for (; arg != NULL && *arg != '\0'; arg = argv_next(&ac, &av)) {
1.333 djm 2156: if (opcode == sPermitListen &&
2157: strchr(arg, ':') == NULL) {
2158: /*
2159: * Allow bare port number for PermitListen
2160: * to indicate a wildcard listen host.
2161: */
2162: xasprintf(&arg2, "*:%s", arg);
2163: } else {
2164: arg2 = xstrdup(arg);
1.348 dtucker 2165: ch = '\0';
1.347 dtucker 2166: p = hpdelim2(&arg, &ch);
2167: if (p == NULL || ch == '/') {
1.380 ! djm 2168: fatal("%s line %d: %s missing host",
! 2169: filename, linenum, keyword);
1.333 djm 2170: }
2171: p = cleanhostname(p);
1.329 djm 2172: }
2173: if (arg == NULL ||
2174: ((port = permitopen_port(arg)) < 0)) {
1.380 ! djm 2175: fatal("%s line %d: %s bad port number",
! 2176: filename, linenum, keyword);
1.329 djm 2177: }
2178: if (*activep && uvalue == 0) {
1.380 ! djm 2179: opt_array_append(filename, linenum, keyword,
1.329 djm 2180: chararrayptr, uintptr, arg2);
1.314 djm 2181: }
2182: free(arg2);
1.159 dtucker 2183: }
1.153 dtucker 2184: break;
2185:
1.158 dtucker 2186: case sForceCommand:
1.380 ! djm 2187: if (str == NULL || *str == '\0')
! 2188: fatal("%s line %d: %s missing argument.",
! 2189: filename, linenum, keyword);
! 2190: len = strspn(str, WHITESPACE);
1.158 dtucker 2191: if (*activep && options->adm_forced_command == NULL)
1.380 ! djm 2192: options->adm_forced_command = xstrdup(str + len);
! 2193: argv_consume(&ac);
! 2194: break;
1.158 dtucker 2195:
1.176 djm 2196: case sChrootDirectory:
2197: charptr = &options->chroot_directory;
1.177 djm 2198:
1.380 ! djm 2199: arg = argv_next(&ac, &av);
1.177 djm 2200: if (!arg || *arg == '\0')
1.380 ! djm 2201: fatal("%s line %d: %s missing argument.",
! 2202: filename, linenum, keyword);
1.177 djm 2203: if (*activep && *charptr == NULL)
2204: *charptr = xstrdup(arg);
2205: break;
1.176 djm 2206:
1.204 djm 2207: case sTrustedUserCAKeys:
2208: charptr = &options->trusted_user_ca_keys;
2209: goto parse_filename;
2210:
2211: case sRevokedKeys:
2212: charptr = &options->revoked_keys_file;
2213: goto parse_filename;
2214:
1.355 djm 2215: case sSecurityKeyProvider:
2216: charptr = &options->sk_provider;
1.380 ! djm 2217: arg = argv_next(&ac, &av);
1.356 djm 2218: if (!arg || *arg == '\0')
1.380 ! djm 2219: fatal("%s line %d: %s missing argument.",
! 2220: filename, linenum, keyword);
1.356 djm 2221: if (*activep && *charptr == NULL) {
2222: *charptr = strcasecmp(arg, "internal") == 0 ?
2223: xstrdup(arg) : derelativise_path(arg);
2224: /* increase optional counter */
2225: if (intptr != NULL)
2226: *intptr = *intptr + 1;
2227: }
2228: break;
1.355 djm 2229:
1.213 djm 2230: case sIPQoS:
1.380 ! djm 2231: arg = argv_next(&ac, &av);
! 2232: if (!arg || *arg == '\0')
! 2233: fatal("%s line %d: %s missing argument.",
! 2234: filename, linenum, keyword);
1.213 djm 2235: if ((value = parse_ipqos(arg)) == -1)
1.380 ! djm 2236: fatal("%s line %d: Bad %s value: %s",
! 2237: filename, linenum, keyword, arg);
! 2238: arg = argv_next(&ac, &av);
1.213 djm 2239: if (arg == NULL)
2240: value2 = value;
2241: else if ((value2 = parse_ipqos(arg)) == -1)
1.380 ! djm 2242: fatal("%s line %d: Bad %s value: %s",
! 2243: filename, linenum, keyword, arg);
1.213 djm 2244: if (*activep) {
2245: options->ip_qos_interactive = value;
2246: options->ip_qos_bulk = value2;
2247: }
2248: break;
2249:
1.225 djm 2250: case sVersionAddendum:
1.380 ! djm 2251: if (str == NULL || *str == '\0')
! 2252: fatal("%s line %d: %s missing argument.",
! 2253: filename, linenum, keyword);
! 2254: len = strspn(str, WHITESPACE);
! 2255: if (strchr(str + len, '\r') != NULL) {
! 2256: fatal("%.200s line %d: Invalid %s argument",
! 2257: filename, linenum, keyword);
! 2258: }
! 2259: if ((arg = strchr(line, '#')) != NULL) {
! 2260: *arg = '\0';
! 2261: rtrim(line);
! 2262: }
1.225 djm 2263: if (*activep && options->version_addendum == NULL) {
1.380 ! djm 2264: if (strcasecmp(str + len, "none") == 0)
1.225 djm 2265: options->version_addendum = xstrdup("");
2266: else
1.380 ! djm 2267: options->version_addendum = xstrdup(str + len);
1.225 djm 2268: }
1.380 ! djm 2269: argv_consume(&ac);
! 2270: break;
1.225 djm 2271:
1.231 djm 2272: case sAuthorizedKeysCommand:
1.380 ! djm 2273: charptr = &options->authorized_keys_command;
! 2274: parse_command:
! 2275: len = strspn(str, WHITESPACE);
! 2276: if (str[len] != '/' && strcasecmp(str + len, "none") != 0) {
! 2277: fatal("%.200s line %d: %s must be an absolute path",
! 2278: filename, linenum, keyword);
! 2279: }
! 2280: if (*activep && options->authorized_keys_command == NULL)
! 2281: *charptr = xstrdup(str + len);
! 2282: argv_consume(&ac);
! 2283: break;
1.231 djm 2284:
2285: case sAuthorizedKeysCommandUser:
2286: charptr = &options->authorized_keys_command_user;
1.380 ! djm 2287: parse_localuser:
! 2288: arg = argv_next(&ac, &av);
! 2289: if (!arg || *arg == '\0') {
! 2290: fatal("%s line %d: missing %s argument.",
! 2291: filename, linenum, keyword);
! 2292: }
1.231 djm 2293: if (*activep && *charptr == NULL)
2294: *charptr = xstrdup(arg);
2295: break;
2296:
1.270 djm 2297: case sAuthorizedPrincipalsCommand:
1.380 ! djm 2298: charptr = &options->authorized_principals_command;
! 2299: goto parse_command;
1.270 djm 2300:
2301: case sAuthorizedPrincipalsCommandUser:
2302: charptr = &options->authorized_principals_command_user;
1.380 ! djm 2303: goto parse_localuser;
1.270 djm 2304:
1.232 djm 2305: case sAuthenticationMethods:
1.380 ! djm 2306: found = options->num_auth_methods == 0;
! 2307: value = 0; /* seen "any" pseudo-method */
! 2308: value2 = 0; /* successfully parsed any method */
! 2309: while ((arg = argv_next(&ac, &av)) != NULL) {
! 2310: if (strcmp(arg, "any") == 0) {
! 2311: if (options->num_auth_methods > 0) {
! 2312: fatal("%s line %d: \"any\" must "
! 2313: "appear alone in %s",
! 2314: filename, linenum, keyword);
1.291 djm 2315: }
1.380 ! djm 2316: value = 1;
! 2317: } else if (value) {
! 2318: fatal("%s line %d: \"any\" must appear "
! 2319: "alone in %s", filename, linenum, keyword);
! 2320: } else if (auth2_methods_valid(arg, 0) != 0) {
! 2321: fatal("%s line %d: invalid %s method list.",
! 2322: filename, linenum, keyword);
1.291 djm 2323: }
1.380 ! djm 2324: value2 = 1;
! 2325: if (!found || !*activep)
! 2326: continue;
! 2327: opt_array_append(filename, linenum, keyword,
! 2328: &options->auth_methods,
! 2329: &options->num_auth_methods, arg);
! 2330: }
! 2331: if (value2 == 0) {
! 2332: fatal("%s line %d: no %s specified",
! 2333: filename, linenum, keyword);
1.232 djm 2334: }
1.380 ! djm 2335: break;
1.232 djm 2336:
1.251 millert 2337: case sStreamLocalBindMask:
1.380 ! djm 2338: arg = argv_next(&ac, &av);
1.251 millert 2339: if (!arg || *arg == '\0')
1.380 ! djm 2340: fatal("%s line %d: %s missing argument.",
! 2341: filename, linenum, keyword);
1.251 millert 2342: /* Parse mode in octal format */
2343: value = strtol(arg, &p, 8);
2344: if (arg == p || value < 0 || value > 0777)
1.380 ! djm 2345: fatal("%s line %d: Invalid %s.",
! 2346: filename, linenum, keyword);
1.268 djm 2347: if (*activep)
2348: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2349: break;
2350:
2351: case sStreamLocalBindUnlink:
2352: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2353: goto parse_flag;
2354:
1.256 djm 2355: case sFingerprintHash:
1.380 ! djm 2356: arg = argv_next(&ac, &av);
1.256 djm 2357: if (!arg || *arg == '\0')
1.380 ! djm 2358: fatal("%s line %d: %s missing argument.",
! 2359: filename, linenum, keyword);
1.256 djm 2360: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1.380 ! djm 2361: fatal("%.200s line %d: Invalid %s algorithm \"%s\".",
! 2362: filename, linenum, keyword, arg);
1.256 djm 2363: if (*activep)
2364: options->fingerprint_hash = value;
2365: break;
2366:
1.309 djm 2367: case sExposeAuthInfo:
2368: intptr = &options->expose_userauth_info;
2369: goto parse_flag;
2370:
1.316 djm 2371: case sRDomain:
2372: charptr = &options->routing_domain;
1.380 ! djm 2373: arg = argv_next(&ac, &av);
1.316 djm 2374: if (!arg || *arg == '\0')
1.380 ! djm 2375: fatal("%s line %d: %s missing argument.",
! 2376: filename, linenum, keyword);
1.316 djm 2377: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2378: !valid_rdomain(arg))
1.380 ! djm 2379: fatal("%s line %d: invalid routing domain",
1.316 djm 2380: filename, linenum);
2381: if (*activep && *charptr == NULL)
2382: *charptr = xstrdup(arg);
1.321 dtucker 2383: break;
1.316 djm 2384:
1.94 markus 2385: case sDeprecated:
1.295 djm 2386: case sIgnore:
1.121 jakob 2387: case sUnsupported:
1.295 djm 2388: do_log2(opcode == sIgnore ?
2389: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2390: "%s line %d: %s option %s", filename, linenum,
1.380 ! djm 2391: opcode == sUnsupported ? "Unsupported" : "Deprecated",
! 2392: keyword);
! 2393: argv_consume(&ac);
1.94 markus 2394: break;
2395:
2396: default:
2397: fatal("%s line %d: Missing handler for opcode %s (%d)",
1.380 ! djm 2398: filename, linenum, keyword, opcode);
! 2399: }
! 2400: /* Check that there is no garbage at end of line. */
! 2401: if (ac > 0) {
! 2402: error("%.200s line %d: keyword %s extra arguments "
! 2403: "at end of line", filename, linenum, keyword);
! 2404: goto out;
1.94 markus 2405: }
1.380 ! djm 2406:
! 2407: /* success */
! 2408: ret = 0;
! 2409: out:
! 2410: argv_free(oav, oac);
! 2411: return ret;
1.94 markus 2412: }
2413:
1.360 djm 2414: int
2415: process_server_config_line(ServerOptions *options, char *line,
2416: const char *filename, int linenum, int *activep,
2417: struct connection_info *connectinfo, struct include_list *includes)
2418: {
1.365 djm 2419: int inc_flags = 0;
2420:
1.360 djm 2421: return process_server_config_line_depth(options, line, filename,
1.365 djm 2422: linenum, activep, connectinfo, &inc_flags, 0, includes);
1.360 djm 2423: }
2424:
2425:
1.94 markus 2426: /* Reads the server configuration file. */
1.25 markus 2427:
1.94 markus 2428: void
1.338 markus 2429: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2430: {
1.366 markus 2431: struct stat st;
1.331 markus 2432: char *line = NULL, *cp;
2433: size_t linesize = 0;
1.94 markus 2434: FILE *f;
1.338 markus 2435: int r, lineno = 0;
1.81 stevesk 2436:
1.371 djm 2437: debug2_f("filename %s", filename);
1.134 djm 2438: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2439: perror(filename);
2440: exit(1);
2441: }
1.338 markus 2442: sshbuf_reset(conf);
1.366 markus 2443: /* grow buffer, so realloc is avoided for large config files */
2444: if (fstat(fileno(f), &st) == 0 && st.st_size > 0 &&
1.379 djm 2445: (r = sshbuf_allocate(conf, st.st_size)) != 0)
1.371 djm 2446: fatal_fr(r, "allocate");
1.331 markus 2447: while (getline(&line, &linesize, f) != -1) {
1.229 dtucker 2448: lineno++;
1.134 djm 2449: /*
1.380 ! djm 2450: * Strip whitespace
1.135 deraadt 2451: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2452: * line numbers later for error messages
2453: */
2454: cp = line + strspn(line, " \t\r");
1.338 markus 2455: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
1.371 djm 2456: fatal_fr(r, "sshbuf_put");
1.134 djm 2457: }
1.331 markus 2458: free(line);
1.338 markus 2459: if ((r = sshbuf_put_u8(conf, 0)) != 0)
1.371 djm 2460: fatal_fr(r, "sshbuf_put_u8");
1.134 djm 2461: fclose(f);
1.371 djm 2462: debug2_f("done config len = %zu", sshbuf_len(conf));
1.134 djm 2463: }
2464:
2465: void
1.226 dtucker 2466: parse_server_match_config(ServerOptions *options,
1.360 djm 2467: struct include_list *includes, struct connection_info *connectinfo)
1.153 dtucker 2468: {
2469: ServerOptions mo;
2470:
2471: initialize_server_options(&mo);
1.360 djm 2472: parse_server_config(&mo, "reprocess config", cfg, includes,
2473: connectinfo);
1.168 dtucker 2474: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2475: }
2476:
1.226 dtucker 2477: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2478: {
2479: char *p;
2480:
2481: while ((p = strsep(&spec, ",")) && *p != '\0') {
2482: if (strncmp(p, "addr=", 5) == 0) {
2483: ci->address = xstrdup(p + 5);
2484: } else if (strncmp(p, "host=", 5) == 0) {
2485: ci->host = xstrdup(p + 5);
2486: } else if (strncmp(p, "user=", 5) == 0) {
2487: ci->user = xstrdup(p + 5);
2488: } else if (strncmp(p, "laddr=", 6) == 0) {
2489: ci->laddress = xstrdup(p + 6);
1.317 djm 2490: } else if (strncmp(p, "rdomain=", 8) == 0) {
2491: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2492: } else if (strncmp(p, "lport=", 6) == 0) {
2493: ci->lport = a2port(p + 6);
2494: if (ci->lport == -1) {
2495: fprintf(stderr, "Invalid port '%s' in test mode"
1.379 djm 2496: " specification %s\n", p+6, p);
1.226 dtucker 2497: return -1;
2498: }
2499: } else {
2500: fprintf(stderr, "Invalid test mode specification %s\n",
1.379 djm 2501: p);
1.226 dtucker 2502: return -1;
2503: }
2504: }
2505: return 0;
2506: }
2507:
1.168 dtucker 2508: /*
2509: * Copy any supported values that are set.
2510: *
1.195 jj 2511: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2512: * array values that are not used pre-authentication, because any that we
1.328 djm 2513: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2514: */
1.153 dtucker 2515: void
1.168 dtucker 2516: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2517: {
1.247 djm 2518: #define M_CP_INTOPT(n) do {\
2519: if (src->n != -1) \
2520: dst->n = src->n; \
2521: } while (0)
2522:
1.168 dtucker 2523: M_CP_INTOPT(password_authentication);
2524: M_CP_INTOPT(gss_authentication);
2525: M_CP_INTOPT(pubkey_authentication);
1.354 djm 2526: M_CP_INTOPT(pubkey_auth_options);
1.168 dtucker 2527: M_CP_INTOPT(kerberos_authentication);
2528: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2529: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2530: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2531: M_CP_INTOPT(permit_root_login);
1.188 djm 2532: M_CP_INTOPT(permit_empty_passwd);
1.362 djm 2533: M_CP_INTOPT(ignore_rhosts);
1.168 dtucker 2534:
2535: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2536: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2537: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2538: M_CP_INTOPT(disable_forwarding);
1.309 djm 2539: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2540: M_CP_INTOPT(permit_tun);
1.251 millert 2541: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2542: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2543: M_CP_INTOPT(x11_display_offset);
2544: M_CP_INTOPT(x11_forwarding);
2545: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2546: M_CP_INTOPT(permit_tty);
1.250 djm 2547: M_CP_INTOPT(permit_user_rc);
1.180 djm 2548: M_CP_INTOPT(max_sessions);
1.184 dtucker 2549: M_CP_INTOPT(max_authtries);
1.300 markus 2550: M_CP_INTOPT(client_alive_count_max);
2551: M_CP_INTOPT(client_alive_interval);
1.213 djm 2552: M_CP_INTOPT(ip_qos_interactive);
2553: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2554: M_CP_INTOPT(rekey_limit);
2555: M_CP_INTOPT(rekey_interval);
1.308 djm 2556: M_CP_INTOPT(log_level);
1.289 djm 2557:
2558: /*
2559: * The bind_mask is a mode_t that may be unsigned, so we can't use
2560: * M_CP_INTOPT - it does a signed comparison that causes compiler
2561: * warnings.
2562: */
1.290 dtucker 2563: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2564: dst->fwd_opts.streamlocal_bind_mask =
2565: src->fwd_opts.streamlocal_bind_mask;
2566: }
1.247 djm 2567:
2568: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2569: #define M_CP_STROPT(n) do {\
2570: if (src->n != NULL && dst->n != src->n) { \
2571: free(dst->n); \
2572: dst->n = src->n; \
2573: } \
2574: } while(0)
1.314 djm 2575: #define M_CP_STRARRAYOPT(s, num_s) do {\
2576: u_int i; \
2577: if (src->num_s != 0) { \
2578: for (i = 0; i < dst->num_s; i++) \
2579: free(dst->s[i]); \
2580: free(dst->s); \
2581: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2582: for (i = 0; i < src->num_s; i++) \
2583: dst->s[i] = xstrdup(src->s[i]); \
2584: dst->num_s = src->num_s; \
1.312 djm 2585: } \
2586: } while(0)
1.168 dtucker 2587:
1.218 djm 2588: /* See comment in servconf.h */
2589: COPY_MATCH_STRING_OPTS();
1.282 djm 2590:
2591: /* Arguments that accept '+...' need to be expanded */
2592: assemble_algorithms(dst);
1.216 djm 2593:
1.217 dtucker 2594: /*
2595: * The only things that should be below this point are string options
2596: * which are only used after authentication.
2597: */
1.168 dtucker 2598: if (preauth)
2599: return;
1.219 djm 2600:
1.283 djm 2601: /* These options may be "none" to clear a global setting */
1.168 dtucker 2602: M_CP_STROPT(adm_forced_command);
1.283 djm 2603: if (option_clear_or_none(dst->adm_forced_command)) {
2604: free(dst->adm_forced_command);
2605: dst->adm_forced_command = NULL;
2606: }
1.176 djm 2607: M_CP_STROPT(chroot_directory);
1.283 djm 2608: if (option_clear_or_none(dst->chroot_directory)) {
2609: free(dst->chroot_directory);
2610: dst->chroot_directory = NULL;
2611: }
1.153 dtucker 2612: }
1.168 dtucker 2613:
2614: #undef M_CP_INTOPT
2615: #undef M_CP_STROPT
1.219 djm 2616: #undef M_CP_STRARRAYOPT
1.153 dtucker 2617:
1.360 djm 2618: #define SERVCONF_MAX_DEPTH 16
1.364 djm 2619: static void
1.360 djm 2620: parse_server_config_depth(ServerOptions *options, const char *filename,
2621: struct sshbuf *conf, struct include_list *includes,
2622: struct connection_info *connectinfo, int flags, int *activep, int depth)
1.134 djm 2623: {
1.360 djm 2624: int linenum, bad_options = 0;
1.136 dtucker 2625: char *cp, *obuf, *cbuf;
1.134 djm 2626:
1.360 djm 2627: if (depth < 0 || depth > SERVCONF_MAX_DEPTH)
2628: fatal("Too many recursive configuration includes");
2629:
1.371 djm 2630: debug2_f("config %s len %zu%s", filename, sshbuf_len(conf),
1.365 djm 2631: (flags & SSHCFG_NEVERMATCH ? " [checking syntax only]" : ""));
1.134 djm 2632:
1.287 djm 2633: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
1.371 djm 2634: fatal_f("sshbuf_dup_string failed");
1.137 dtucker 2635: linenum = 1;
1.140 deraadt 2636: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.360 djm 2637: if (process_server_config_line_depth(options, cp,
1.365 djm 2638: filename, linenum++, activep, connectinfo, &flags,
1.360 djm 2639: depth, includes) != 0)
1.94 markus 2640: bad_options++;
1.1 deraadt 2641: }
1.239 djm 2642: free(obuf);
1.78 stevesk 2643: if (bad_options > 0)
2644: fatal("%s: terminating, %d bad configuration options",
2645: filename, bad_options);
1.360 djm 2646: }
2647:
2648: void
2649: parse_server_config(ServerOptions *options, const char *filename,
2650: struct sshbuf *conf, struct include_list *includes,
2651: struct connection_info *connectinfo)
2652: {
2653: int active = connectinfo ? 0 : 1;
2654: parse_server_config_depth(options, filename, conf, includes,
1.365 djm 2655: connectinfo, (connectinfo ? SSHCFG_MATCH_ONLY : 0), &active, 0);
1.364 djm 2656: process_queued_listen_addrs(options);
1.182 dtucker 2657: }
2658:
2659: static const char *
1.221 djm 2660: fmt_multistate_int(int val, const struct multistate *m)
2661: {
2662: u_int i;
2663:
2664: for (i = 0; m[i].key != NULL; i++) {
2665: if (m[i].value == val)
2666: return m[i].key;
2667: }
2668: return "UNKNOWN";
2669: }
2670:
2671: static const char *
1.182 dtucker 2672: fmt_intarg(ServerOpCodes code, int val)
2673: {
1.221 djm 2674: if (val == -1)
2675: return "unset";
2676: switch (code) {
2677: case sAddressFamily:
2678: return fmt_multistate_int(val, multistate_addressfamily);
2679: case sPermitRootLogin:
2680: return fmt_multistate_int(val, multistate_permitrootlogin);
2681: case sGatewayPorts:
2682: return fmt_multistate_int(val, multistate_gatewayports);
2683: case sCompression:
2684: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2685: case sAllowTcpForwarding:
2686: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2687: case sAllowStreamLocalForwarding:
2688: return fmt_multistate_int(val, multistate_tcpfwd);
1.363 djm 2689: case sIgnoreRhosts:
2690: return fmt_multistate_int(val, multistate_ignore_rhosts);
1.256 djm 2691: case sFingerprintHash:
2692: return ssh_digest_alg_name(val);
1.221 djm 2693: default:
2694: switch (val) {
2695: case 0:
2696: return "no";
2697: case 1:
2698: return "yes";
2699: default:
2700: return "UNKNOWN";
2701: }
1.182 dtucker 2702: }
2703: }
2704:
2705: static void
2706: dump_cfg_int(ServerOpCodes code, int val)
2707: {
2708: printf("%s %d\n", lookup_opcode_name(code), val);
2709: }
2710:
2711: static void
1.263 dtucker 2712: dump_cfg_oct(ServerOpCodes code, int val)
2713: {
2714: printf("%s 0%o\n", lookup_opcode_name(code), val);
2715: }
2716:
2717: static void
1.182 dtucker 2718: dump_cfg_fmtint(ServerOpCodes code, int val)
2719: {
2720: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2721: }
2722:
2723: static void
2724: dump_cfg_string(ServerOpCodes code, const char *val)
2725: {
1.257 djm 2726: printf("%s %s\n", lookup_opcode_name(code),
2727: val == NULL ? "none" : val);
1.182 dtucker 2728: }
2729:
2730: static void
2731: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2732: {
2733: u_int i;
2734:
2735: for (i = 0; i < count; i++)
1.219 djm 2736: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2737: }
2738:
2739: static void
2740: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2741: {
2742: u_int i;
2743:
1.291 djm 2744: if (count <= 0 && code != sAuthenticationMethods)
1.261 dtucker 2745: return;
1.219 djm 2746: printf("%s", lookup_opcode_name(code));
2747: for (i = 0; i < count; i++)
2748: printf(" %s", vals[i]);
1.291 djm 2749: if (code == sAuthenticationMethods && count == 0)
2750: printf(" any");
1.219 djm 2751: printf("\n");
1.182 dtucker 2752: }
2753:
1.315 djm 2754: static char *
2755: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2756: {
1.315 djm 2757: int r;
1.182 dtucker 2758: struct addrinfo *ai;
1.315 djm 2759: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2760: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2761:
1.263 dtucker 2762: /*
2763: * ListenAddress must be after Port. add_one_listen_addr pushes
2764: * addresses onto a stack, so to maintain ordering we need to
2765: * print these in reverse order.
2766: */
1.315 djm 2767: for (ai = la->addrs; ai; ai = ai->ai_next) {
2768: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2769: sizeof(addr), port, sizeof(port),
2770: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2771: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2772: continue;
2773: }
2774: laddr2 = laddr1;
2775: if (ai->ai_family == AF_INET6) {
2776: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2777: addr, port,
2778: la->rdomain == NULL ? "" : " rdomain ",
2779: la->rdomain == NULL ? "" : la->rdomain,
2780: laddr2);
1.182 dtucker 2781: } else {
1.315 djm 2782: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2783: addr, port,
2784: la->rdomain == NULL ? "" : " rdomain ",
2785: la->rdomain == NULL ? "" : la->rdomain,
2786: laddr2);
1.182 dtucker 2787: }
1.315 djm 2788: free(laddr2);
2789: }
2790: return laddr1;
2791: }
2792:
2793: void
2794: dump_config(ServerOptions *o)
2795: {
2796: char *s;
2797: u_int i;
2798:
2799: /* these are usually at the top of the config */
2800: for (i = 0; i < o->num_ports; i++)
2801: printf("port %d\n", o->ports[i]);
2802: dump_cfg_fmtint(sAddressFamily, o->address_family);
2803:
2804: for (i = 0; i < o->num_listen_addrs; i++) {
2805: s = format_listen_addrs(&o->listen_addrs[i]);
2806: printf("%s", s);
2807: free(s);
1.182 dtucker 2808: }
2809:
2810: /* integer arguments */
2811: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2812: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2813: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2814: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2815: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2816: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2817: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2818:
2819: /* formatted integer arguments */
2820: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2821: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2822: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2823: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2824: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2825: o->hostbased_uses_name_from_packet_only);
2826: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2827: #ifdef KRB5
1.182 dtucker 2828: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2829: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2830: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2831: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2832: #endif
2833: #ifdef GSSAPI
1.182 dtucker 2834: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2835: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2836: #endif
1.182 dtucker 2837: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2838: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2839: o->kbd_interactive_authentication);
2840: dump_cfg_fmtint(sChallengeResponseAuthentication,
2841: o->challenge_response_authentication);
2842: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2843: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2844: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2845: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2846: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2847: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2848: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2849: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2850: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2851: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2852: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2853: dump_cfg_fmtint(sUseDNS, o->use_dns);
2854: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2855: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2856: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2857: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2858: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2859: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2860: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2861:
2862: /* string arguments */
2863: dump_cfg_string(sPidFile, o->pid_file);
1.378 dtucker 2864: dump_cfg_string(sModuliFile, o->moduli_file);
1.182 dtucker 2865: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.358 dtucker 2866: dump_cfg_string(sCiphers, o->ciphers);
2867: dump_cfg_string(sMacs, o->macs);
1.182 dtucker 2868: dump_cfg_string(sBanner, o->banner);
2869: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2870: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2871: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2872: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.355 djm 2873: dump_cfg_string(sSecurityKeyProvider, o->sk_provider);
1.208 djm 2874: dump_cfg_string(sAuthorizedPrincipalsFile,
2875: o->authorized_principals_file);
1.261 dtucker 2876: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2877: ? "none" : o->version_addendum);
1.231 djm 2878: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2879: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 2880: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
2881: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 2882: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.358 dtucker 2883: dump_cfg_string(sKexAlgorithms, o->kex_algorithms);
2884: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms);
1.375 dtucker 2885: dump_cfg_string(sHostbasedAcceptedAlgorithms, o->hostbased_accepted_algos);
1.358 dtucker 2886: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms);
1.374 dtucker 2887: dump_cfg_string(sPubkeyAcceptedAlgorithms, o->pubkey_accepted_algos);
1.316 djm 2888: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 2889:
2890: /* string arguments requiring a lookup */
2891: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2892: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2893:
2894: /* string array arguments */
1.219 djm 2895: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2896: o->authorized_keys_files);
1.182 dtucker 2897: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1.379 djm 2898: o->host_key_files);
1.261 dtucker 2899: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.379 djm 2900: o->host_cert_files);
1.182 dtucker 2901: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2902: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2903: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2904: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2905: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 2906: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 2907: dump_cfg_strarray_oneline(sAuthenticationMethods,
2908: o->num_auth_methods, o->auth_methods);
1.370 djm 2909: dump_cfg_strarray_oneline(sLogVerbose,
2910: o->num_log_verbose, o->log_verbose);
1.182 dtucker 2911:
2912: /* other arguments */
2913: for (i = 0; i < o->num_subsystems; i++)
2914: printf("subsystem %s %s\n", o->subsystem_name[i],
2915: o->subsystem_args[i]);
2916:
2917: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2918: o->max_startups_rate, o->max_startups);
1.372 dtucker 2919: printf("persourcemaxstartups ");
2920: if (o->per_source_max_startups == INT_MAX)
2921: printf("none\n");
2922: else
2923: printf("%d\n", o->per_source_max_startups);
1.373 dtucker 2924: printf("persourcenetblocksize %d:%d\n", o->per_source_masklen_ipv4,
1.372 dtucker 2925: o->per_source_masklen_ipv6);
1.182 dtucker 2926:
1.318 djm 2927: s = NULL;
2928: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 2929: if (tunmode_desc[i].val == o->permit_tun) {
2930: s = tunmode_desc[i].text;
2931: break;
2932: }
1.318 djm 2933: }
1.182 dtucker 2934: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2935:
1.214 stevesk 2936: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2937: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2938:
1.284 dtucker 2939: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 2940: o->rekey_interval);
1.182 dtucker 2941:
1.310 djm 2942: printf("permitopen");
2943: if (o->num_permitted_opens == 0)
2944: printf(" any");
2945: else {
2946: for (i = 0; i < o->num_permitted_opens; i++)
2947: printf(" %s", o->permitted_opens[i]);
1.329 djm 2948: }
2949: printf("\n");
1.330 djm 2950: printf("permitlisten");
2951: if (o->num_permitted_listens == 0)
1.329 djm 2952: printf(" any");
2953: else {
1.330 djm 2954: for (i = 0; i < o->num_permitted_listens; i++)
2955: printf(" %s", o->permitted_listens[i]);
1.310 djm 2956: }
2957: printf("\n");
1.334 djm 2958:
1.367 djm 2959: if (o->permit_user_env_allowlist == NULL) {
1.334 djm 2960: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2961: } else {
2962: printf("permituserenvironment %s\n",
1.367 djm 2963: o->permit_user_env_allowlist);
1.334 djm 2964: }
2965:
1.354 djm 2966: printf("pubkeyauthoptions");
2967: if (o->pubkey_auth_options == 0)
2968: printf(" none");
2969: if (o->pubkey_auth_options & PUBKEYAUTH_TOUCH_REQUIRED)
2970: printf(" touch-required");
1.368 djm 2971: if (o->pubkey_auth_options & PUBKEYAUTH_VERIFY_REQUIRED)
2972: printf(" verify-required");
1.354 djm 2973: printf("\n");
1.1 deraadt 2974: }
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