Annotation of src/usr.bin/ssh/servconf.c, Revision 1.338
1.226 dtucker 1:
1.338 ! markus 2: /* $OpenBSD: servconf.c,v 1.337 2018/07/09 13:37:10 sf 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>
1.154 stevesk 18:
1.213 djm 19: #include <netinet/in.h>
20: #include <netinet/ip.h>
1.315 djm 21: #include <net/route.h>
1.213 djm 22:
1.235 dtucker 23: #include <ctype.h>
1.154 stevesk 24: #include <netdb.h>
1.165 dtucker 25: #include <pwd.h>
1.162 stevesk 26: #include <stdio.h>
1.161 stevesk 27: #include <stdlib.h>
1.160 stevesk 28: #include <string.h>
1.164 deraadt 29: #include <signal.h>
1.155 stevesk 30: #include <unistd.h>
1.259 deraadt 31: #include <limits.h>
1.164 deraadt 32: #include <stdarg.h>
1.182 dtucker 33: #include <errno.h>
1.236 dtucker 34: #include <util.h>
1.1 deraadt 35:
1.164 deraadt 36: #include "xmalloc.h"
1.1 deraadt 37: #include "ssh.h"
1.62 markus 38: #include "log.h"
1.338 ! markus 39: #include "sshbuf.h"
1.251 millert 40: #include "misc.h"
1.1 deraadt 41: #include "servconf.h"
1.33 markus 42: #include "compat.h"
1.60 markus 43: #include "pathnames.h"
1.62 markus 44: #include "cipher.h"
1.164 deraadt 45: #include "key.h"
1.66 markus 46: #include "kex.h"
47: #include "mac.h"
1.153 dtucker 48: #include "match.h"
1.156 dtucker 49: #include "channels.h"
1.165 dtucker 50: #include "groupaccess.h"
1.226 dtucker 51: #include "canohost.h"
52: #include "packet.h"
1.338 ! markus 53: #include "ssherr.h"
1.232 djm 54: #include "hostfile.h"
55: #include "auth.h"
1.252 djm 56: #include "myproposal.h"
1.256 djm 57: #include "digest.h"
1.1 deraadt 58:
1.315 djm 59: static void add_listen_addr(ServerOptions *, const char *,
60: const char *, int);
61: static void add_one_listen_addr(ServerOptions *, const char *,
62: const char *, int);
1.29 markus 63:
1.102 provos 64: /* Use of privilege separation or not */
65: extern int use_privsep;
1.338 ! markus 66: extern struct sshbuf *cfg;
1.62 markus 67:
1.1 deraadt 68: /* Initializes the server options to their default values. */
69:
1.34 markus 70: void
1.25 markus 71: initialize_server_options(ServerOptions *options)
1.1 deraadt 72: {
1.25 markus 73: memset(options, 0, sizeof(*options));
1.29 markus 74: options->num_ports = 0;
75: options->ports_from_cmdline = 0;
1.266 dtucker 76: options->queued_listen_addrs = NULL;
77: options->num_queued_listens = 0;
1.29 markus 78: options->listen_addrs = NULL;
1.315 djm 79: options->num_listen_addrs = 0;
1.138 djm 80: options->address_family = -1;
1.316 djm 81: options->routing_domain = NULL;
1.54 markus 82: options->num_host_key_files = 0;
1.203 djm 83: options->num_host_cert_files = 0;
1.240 markus 84: options->host_key_agent = NULL;
1.36 markus 85: options->pid_file = NULL;
1.25 markus 86: options->login_grace_time = -1;
1.279 chris 87: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 88: options->ignore_rhosts = -1;
89: options->ignore_user_known_hosts = -1;
90: options->print_motd = -1;
1.72 stevesk 91: options->print_lastlog = -1;
1.25 markus 92: options->x11_forwarding = -1;
93: options->x11_display_offset = -1;
1.99 stevesk 94: options->x11_use_localhost = -1;
1.244 djm 95: options->permit_tty = -1;
1.250 djm 96: options->permit_user_rc = -1;
1.42 markus 97: options->xauth_location = NULL;
1.25 markus 98: options->strict_modes = -1;
1.129 markus 99: options->tcp_keep_alive = -1;
1.101 markus 100: options->log_facility = SYSLOG_FACILITY_NOT_SET;
101: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.75 markus 102: options->hostbased_authentication = -1;
103: options->hostbased_uses_name_from_packet_only = -1;
1.258 djm 104: options->hostbased_key_types = NULL;
1.276 markus 105: options->hostkeyalgorithms = NULL;
1.54 markus 106: options->pubkey_authentication = -1;
1.258 djm 107: options->pubkey_key_types = NULL;
1.25 markus 108: options->kerberos_authentication = -1;
109: options->kerberos_or_local_passwd = -1;
110: options->kerberos_ticket_cleanup = -1;
1.130 jakob 111: options->kerberos_get_afs_token = -1;
1.125 markus 112: options->gss_authentication=-1;
113: options->gss_cleanup_creds = -1;
1.271 djm 114: options->gss_strict_acceptor = -1;
1.25 markus 115: options->password_authentication = -1;
1.52 markus 116: options->kbd_interactive_authentication = -1;
1.80 markus 117: options->challenge_response_authentication = -1;
1.25 markus 118: options->permit_empty_passwd = -1;
1.113 markus 119: options->permit_user_env = -1;
1.334 djm 120: options->permit_user_env_whitelist = NULL;
1.111 markus 121: options->compression = -1;
1.235 dtucker 122: options->rekey_limit = -1;
123: options->rekey_interval = -1;
1.53 markus 124: options->allow_tcp_forwarding = -1;
1.251 millert 125: options->allow_streamlocal_forwarding = -1;
1.178 pyr 126: options->allow_agent_forwarding = -1;
1.25 markus 127: options->num_allow_users = 0;
128: options->num_deny_users = 0;
129: options->num_allow_groups = 0;
130: options->num_deny_groups = 0;
1.33 markus 131: options->ciphers = NULL;
1.66 markus 132: options->macs = NULL;
1.211 djm 133: options->kex_algorithms = NULL;
1.251 millert 134: options->fwd_opts.gateway_ports = -1;
135: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
136: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 137: options->num_subsystems = 0;
1.50 markus 138: options->max_startups_begin = -1;
139: options->max_startups_rate = -1;
1.46 markus 140: options->max_startups = -1;
1.133 dtucker 141: options->max_authtries = -1;
1.180 djm 142: options->max_sessions = -1;
1.57 markus 143: options->banner = NULL;
1.122 markus 144: options->use_dns = -1;
1.77 beck 145: options->client_alive_interval = -1;
146: options->client_alive_count_max = -1;
1.219 djm 147: options->num_authkeys_files = 0;
1.131 djm 148: options->num_accept_env = 0;
1.332 djm 149: options->num_setenv = 0;
1.145 reyk 150: options->permit_tun = -1;
1.310 djm 151: options->permitted_opens = NULL;
1.330 djm 152: options->permitted_listens = NULL;
1.158 dtucker 153: options->adm_forced_command = NULL;
1.176 djm 154: options->chroot_directory = NULL;
1.231 djm 155: options->authorized_keys_command = NULL;
156: options->authorized_keys_command_user = NULL;
1.204 djm 157: options->revoked_keys_file = NULL;
158: options->trusted_user_ca_keys = NULL;
1.208 djm 159: options->authorized_principals_file = NULL;
1.270 djm 160: options->authorized_principals_command = NULL;
161: options->authorized_principals_command_user = NULL;
1.213 djm 162: options->ip_qos_interactive = -1;
163: options->ip_qos_bulk = -1;
1.225 djm 164: options->version_addendum = NULL;
1.256 djm 165: options->fingerprint_hash = -1;
1.301 djm 166: options->disable_forwarding = -1;
1.309 djm 167: options->expose_userauth_info = -1;
1.1 deraadt 168: }
169:
1.257 djm 170: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
171: static int
172: option_clear_or_none(const char *o)
173: {
174: return o == NULL || strcasecmp(o, "none") == 0;
175: }
176:
1.282 djm 177: static void
178: assemble_algorithms(ServerOptions *o)
179: {
1.335 djm 180: char *all_cipher, *all_mac, *all_kex, *all_key;
181:
182: all_cipher = cipher_alg_list(',', 0);
183: all_mac = mac_alg_list(',');
184: all_kex = kex_alg_list(',');
185: all_key = sshkey_alg_list(0, 0, 1, ',');
186: if (kex_assemble_names(&o->ciphers,
187: KEX_SERVER_ENCRYPT, all_cipher) != 0 ||
188: kex_assemble_names(&o->macs,
189: KEX_SERVER_MAC, all_mac) != 0 ||
190: kex_assemble_names(&o->kex_algorithms,
191: KEX_SERVER_KEX, all_kex) != 0 ||
192: kex_assemble_names(&o->hostkeyalgorithms,
193: KEX_DEFAULT_PK_ALG, all_key) != 0 ||
194: kex_assemble_names(&o->hostbased_key_types,
195: KEX_DEFAULT_PK_ALG, all_key) != 0 ||
196: kex_assemble_names(&o->pubkey_key_types,
197: KEX_DEFAULT_PK_ALG, all_key) != 0)
1.282 djm 198: fatal("kex_assemble_names failed");
1.335 djm 199: free(all_cipher);
200: free(all_mac);
201: free(all_kex);
202: free(all_key);
1.282 djm 203: }
204:
1.314 djm 205: static void
206: array_append(const char *file, const int line, const char *directive,
207: char ***array, u_int *lp, const char *s)
208: {
209:
210: if (*lp >= INT_MAX)
211: fatal("%s line %d: Too many %s entries", file, line, directive);
212:
213: *array = xrecallocarray(*array, *lp, *lp + 1, sizeof(**array));
214: (*array)[*lp] = xstrdup(s);
215: (*lp)++;
216: }
217:
218: void
219: servconf_add_hostkey(const char *file, const int line,
220: ServerOptions *options, const char *path)
221: {
222: char *apath = derelativise_path(path);
223:
224: array_append(file, line, "HostKey",
225: &options->host_key_files, &options->num_host_key_files, apath);
226: free(apath);
227: }
228:
229: void
230: servconf_add_hostcert(const char *file, const int line,
231: ServerOptions *options, const char *path)
232: {
233: char *apath = derelativise_path(path);
234:
235: array_append(file, line, "HostCertificate",
236: &options->host_cert_files, &options->num_host_cert_files, apath);
237: free(apath);
238: }
239:
1.34 markus 240: void
1.25 markus 241: fill_default_server_options(ServerOptions *options)
1.1 deraadt 242: {
1.314 djm 243: u_int i;
1.257 djm 244:
1.54 markus 245: if (options->num_host_key_files == 0) {
1.293 naddy 246: /* fill default hostkeys */
1.314 djm 247: servconf_add_hostkey("[default]", 0, options,
248: _PATH_HOST_RSA_KEY_FILE);
249: servconf_add_hostkey("[default]", 0, options,
250: _PATH_HOST_ECDSA_KEY_FILE);
251: servconf_add_hostkey("[default]", 0, options,
252: _PATH_HOST_ED25519_KEY_FILE);
1.326 markus 253: #ifdef WITH_XMSS
1.325 markus 254: servconf_add_hostkey("[default]", 0, options,
255: _PATH_HOST_XMSS_KEY_FILE);
1.326 markus 256: #endif /* WITH_XMSS */
1.54 markus 257: }
1.203 djm 258: /* No certificates by default */
1.29 markus 259: if (options->num_ports == 0)
260: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 261: if (options->address_family == -1)
262: options->address_family = AF_UNSPEC;
1.29 markus 263: if (options->listen_addrs == NULL)
1.315 djm 264: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 265: if (options->pid_file == NULL)
1.257 djm 266: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.25 markus 267: if (options->login_grace_time == -1)
1.115 stevesk 268: options->login_grace_time = 120;
1.67 markus 269: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 270: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 271: if (options->ignore_rhosts == -1)
1.30 markus 272: options->ignore_rhosts = 1;
1.25 markus 273: if (options->ignore_user_known_hosts == -1)
274: options->ignore_user_known_hosts = 0;
275: if (options->print_motd == -1)
276: options->print_motd = 1;
1.72 stevesk 277: if (options->print_lastlog == -1)
278: options->print_lastlog = 1;
1.25 markus 279: if (options->x11_forwarding == -1)
1.30 markus 280: options->x11_forwarding = 0;
1.25 markus 281: if (options->x11_display_offset == -1)
1.30 markus 282: options->x11_display_offset = 10;
1.99 stevesk 283: if (options->x11_use_localhost == -1)
284: options->x11_use_localhost = 1;
1.42 markus 285: if (options->xauth_location == NULL)
1.257 djm 286: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 287: if (options->permit_tty == -1)
288: options->permit_tty = 1;
1.250 djm 289: if (options->permit_user_rc == -1)
290: options->permit_user_rc = 1;
1.25 markus 291: if (options->strict_modes == -1)
292: options->strict_modes = 1;
1.129 markus 293: if (options->tcp_keep_alive == -1)
294: options->tcp_keep_alive = 1;
1.101 markus 295: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 296: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 297: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 298: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 299: if (options->hostbased_authentication == -1)
300: options->hostbased_authentication = 0;
301: if (options->hostbased_uses_name_from_packet_only == -1)
302: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 303: if (options->pubkey_authentication == -1)
304: options->pubkey_authentication = 1;
1.25 markus 305: if (options->kerberos_authentication == -1)
1.107 markus 306: options->kerberos_authentication = 0;
1.25 markus 307: if (options->kerberos_or_local_passwd == -1)
308: options->kerberos_or_local_passwd = 1;
309: if (options->kerberos_ticket_cleanup == -1)
310: options->kerberos_ticket_cleanup = 1;
1.130 jakob 311: if (options->kerberos_get_afs_token == -1)
312: options->kerberos_get_afs_token = 0;
1.125 markus 313: if (options->gss_authentication == -1)
314: options->gss_authentication = 0;
315: if (options->gss_cleanup_creds == -1)
316: options->gss_cleanup_creds = 1;
1.271 djm 317: if (options->gss_strict_acceptor == -1)
1.302 djm 318: options->gss_strict_acceptor = 1;
1.25 markus 319: if (options->password_authentication == -1)
320: options->password_authentication = 1;
1.52 markus 321: if (options->kbd_interactive_authentication == -1)
322: options->kbd_interactive_authentication = 0;
1.80 markus 323: if (options->challenge_response_authentication == -1)
324: options->challenge_response_authentication = 1;
1.25 markus 325: if (options->permit_empty_passwd == -1)
1.30 markus 326: options->permit_empty_passwd = 0;
1.334 djm 327: if (options->permit_user_env == -1) {
1.113 markus 328: options->permit_user_env = 0;
1.334 djm 329: options->permit_user_env_whitelist = NULL;
330: }
1.111 markus 331: if (options->compression == -1)
1.337 sf 332: options->compression = COMP_DELAYED;
1.235 dtucker 333: if (options->rekey_limit == -1)
334: options->rekey_limit = 0;
335: if (options->rekey_interval == -1)
336: options->rekey_interval = 0;
1.53 markus 337: if (options->allow_tcp_forwarding == -1)
1.233 djm 338: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 339: if (options->allow_streamlocal_forwarding == -1)
340: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 341: if (options->allow_agent_forwarding == -1)
342: options->allow_agent_forwarding = 1;
1.251 millert 343: if (options->fwd_opts.gateway_ports == -1)
344: options->fwd_opts.gateway_ports = 0;
1.46 markus 345: if (options->max_startups == -1)
1.234 dtucker 346: options->max_startups = 100;
1.50 markus 347: if (options->max_startups_rate == -1)
1.234 dtucker 348: options->max_startups_rate = 30; /* 30% */
1.50 markus 349: if (options->max_startups_begin == -1)
1.234 dtucker 350: options->max_startups_begin = 10;
1.133 dtucker 351: if (options->max_authtries == -1)
352: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 353: if (options->max_sessions == -1)
354: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 355: if (options->use_dns == -1)
1.260 deraadt 356: options->use_dns = 0;
1.77 beck 357: if (options->client_alive_interval == -1)
1.95 deraadt 358: options->client_alive_interval = 0;
1.77 beck 359: if (options->client_alive_count_max == -1)
360: options->client_alive_count_max = 3;
1.219 djm 361: if (options->num_authkeys_files == 0) {
1.314 djm 362: array_append("[default]", 0, "AuthorizedKeysFiles",
363: &options->authorized_keys_files,
364: &options->num_authkeys_files,
365: _PATH_SSH_USER_PERMITTED_KEYS);
366: array_append("[default]", 0, "AuthorizedKeysFiles",
367: &options->authorized_keys_files,
368: &options->num_authkeys_files,
369: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 370: }
1.145 reyk 371: if (options->permit_tun == -1)
1.146 reyk 372: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 373: if (options->ip_qos_interactive == -1)
1.327 job 374: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 375: if (options->ip_qos_bulk == -1)
1.327 job 376: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 377: if (options->version_addendum == NULL)
378: options->version_addendum = xstrdup("");
1.251 millert 379: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
380: options->fwd_opts.streamlocal_bind_mask = 0177;
381: if (options->fwd_opts.streamlocal_bind_unlink == -1)
382: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 383: if (options->fingerprint_hash == -1)
384: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 385: if (options->disable_forwarding == -1)
386: options->disable_forwarding = 0;
1.309 djm 387: if (options->expose_userauth_info == -1)
388: options->expose_userauth_info = 0;
1.277 djm 389:
1.282 djm 390: assemble_algorithms(options);
1.277 djm 391:
1.285 djm 392: /* Turn privilege separation and sandboxing on by default */
1.102 provos 393: if (use_privsep == -1)
1.285 djm 394: use_privsep = PRIVSEP_ON;
1.257 djm 395:
396: #define CLEAR_ON_NONE(v) \
397: do { \
398: if (option_clear_or_none(v)) { \
399: free(v); \
400: v = NULL; \
401: } \
402: } while(0)
403: CLEAR_ON_NONE(options->pid_file);
404: CLEAR_ON_NONE(options->xauth_location);
405: CLEAR_ON_NONE(options->banner);
406: CLEAR_ON_NONE(options->trusted_user_ca_keys);
407: CLEAR_ON_NONE(options->revoked_keys_file);
1.267 djm 408: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 409: CLEAR_ON_NONE(options->adm_forced_command);
410: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 411: CLEAR_ON_NONE(options->routing_domain);
1.257 djm 412: for (i = 0; i < options->num_host_key_files; i++)
413: CLEAR_ON_NONE(options->host_key_files[i]);
414: for (i = 0; i < options->num_host_cert_files; i++)
415: CLEAR_ON_NONE(options->host_cert_files[i]);
416: #undef CLEAR_ON_NONE
1.291 djm 417:
418: /* Similar handling for AuthenticationMethods=any */
419: if (options->num_auth_methods == 1 &&
420: strcmp(options->auth_methods[0], "any") == 0) {
421: free(options->auth_methods[0]);
422: options->auth_methods[0] = NULL;
423: options->num_auth_methods = 0;
424: }
425:
1.1 deraadt 426: }
427:
428: /* Keyword tokens. */
1.25 markus 429: typedef enum {
430: sBadOption, /* == unknown option */
1.293 naddy 431: sPort, sHostKeyFile, sLoginGraceTime,
432: sPermitRootLogin, sLogFacility, sLogLevel,
1.25 markus 433: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.323 dtucker 434: sKerberosGetAFSToken, sChallengeResponseAuthentication,
1.138 djm 435: sPasswordAuthentication, sKbdInteractiveAuthentication,
436: sListenAddress, sAddressFamily,
1.72 stevesk 437: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 438: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 439: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 440: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 441: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.293 naddy 442: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile,
1.258 djm 443: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
444: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 445: sBanner, sUseDNS, sHostbasedAuthentication,
1.258 djm 446: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
1.276 markus 447: sHostKeyAlgorithms,
1.258 djm 448: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 449: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 450: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 451: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 452: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.249 djm 453: sHostCertificate,
1.208 djm 454: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 455: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.225 djm 456: sKexAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 457: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 458: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 459: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 460: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.316 djm 461: sExposeAuthInfo, sRDomain,
1.295 djm 462: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 463: } ServerOpCodes;
464:
1.153 dtucker 465: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
466: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
467: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
468:
1.1 deraadt 469: /* Textual representation of the tokens. */
1.25 markus 470: static struct {
471: const char *name;
472: ServerOpCodes opcode;
1.153 dtucker 473: u_int flags;
1.25 markus 474: } keywords[] = {
1.153 dtucker 475: { "port", sPort, SSHCFG_GLOBAL },
476: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
477: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 478: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 479: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.293 naddy 480: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 481: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 482: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 483: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 484: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 485: { "loglevel", sLogLevel, SSHCFG_ALL },
1.153 dtucker 486: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 487: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 488: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 489: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.258 djm 490: { "hostbasedacceptedkeytypes", sHostbasedAcceptedKeyTypes, SSHCFG_ALL },
1.276 markus 491: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 492: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 493: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.258 djm 494: { "pubkeyacceptedkeytypes", sPubkeyAcceptedKeyTypes, SSHCFG_ALL },
1.153 dtucker 495: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 496: #ifdef KRB5
1.168 dtucker 497: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 498: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
499: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
500: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 501: #else
1.168 dtucker 502: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 503: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
504: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
505: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 506: #endif
1.153 dtucker 507: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
508: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 509: #ifdef GSSAPI
1.168 dtucker 510: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 511: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 512: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 513: #else
1.168 dtucker 514: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 515: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 516: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 517: #endif
1.168 dtucker 518: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
519: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 520: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 521: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
522: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
523: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
524: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
525: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
526: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
527: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
528: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 529: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
530: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
531: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 532: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
533: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 534: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 535: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 536: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 537: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 538: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 539: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
540: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
541: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 542: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 543: { "allowusers", sAllowUsers, SSHCFG_ALL },
544: { "denyusers", sDenyUsers, SSHCFG_ALL },
545: { "allowgroups", sAllowGroups, SSHCFG_ALL },
546: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 547: { "ciphers", sCiphers, SSHCFG_GLOBAL },
548: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 549: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 550: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
551: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
552: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 553: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 554: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 555: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 556: { "usedns", sUseDNS, SSHCFG_GLOBAL },
557: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
558: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 559: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
560: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 561: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 562: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 563: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 564: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 565: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 566: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 567: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 568: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 569: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 570: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 571: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 572: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 573: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 574: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 575: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
576: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 577: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 578: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.213 djm 579: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 580: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
581: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 582: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
583: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 584: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 585: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 586: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
587: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
588: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 589: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 590: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 591: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 592: { "rdomain", sRDomain, SSHCFG_ALL },
1.153 dtucker 593: { NULL, sBadOption, 0 }
1.1 deraadt 594: };
595:
1.182 dtucker 596: static struct {
597: int val;
598: char *text;
599: } tunmode_desc[] = {
600: { SSH_TUNMODE_NO, "no" },
601: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
602: { SSH_TUNMODE_ETHERNET, "ethernet" },
603: { SSH_TUNMODE_YES, "yes" },
604: { -1, NULL }
605: };
606:
1.329 djm 607: /* Returns an opcode name from its number */
608:
609: static const char *
610: lookup_opcode_name(ServerOpCodes code)
611: {
612: u_int i;
613:
614: for (i = 0; keywords[i].name != NULL; i++)
615: if (keywords[i].opcode == code)
616: return(keywords[i].name);
617: return "UNKNOWN";
618: }
619:
620:
1.27 markus 621: /*
1.73 stevesk 622: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 623: */
1.1 deraadt 624:
1.34 markus 625: static ServerOpCodes
1.25 markus 626: parse_token(const char *cp, const char *filename,
1.153 dtucker 627: int linenum, u_int *flags)
1.1 deraadt 628: {
1.55 markus 629: u_int i;
1.1 deraadt 630:
1.25 markus 631: for (i = 0; keywords[i].name; i++)
1.153 dtucker 632: if (strcasecmp(cp, keywords[i].name) == 0) {
633: *flags = keywords[i].flags;
1.25 markus 634: return keywords[i].opcode;
1.153 dtucker 635: }
1.25 markus 636:
1.78 stevesk 637: error("%s: line %d: Bad configuration option: %s",
638: filename, linenum, cp);
1.25 markus 639: return sBadOption;
1.1 deraadt 640: }
641:
1.202 djm 642: char *
643: derelativise_path(const char *path)
644: {
1.259 deraadt 645: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 646:
1.257 djm 647: if (strcasecmp(path, "none") == 0)
648: return xstrdup("none");
1.202 djm 649: expanded = tilde_expand_filename(path, getuid());
650: if (*expanded == '/')
651: return expanded;
1.207 djm 652: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 653: fatal("%s: getcwd: %s", __func__, strerror(errno));
654: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 655: free(expanded);
1.202 djm 656: return ret;
657: }
658:
1.84 itojun 659: static void
1.315 djm 660: add_listen_addr(ServerOptions *options, const char *addr,
661: const char *rdomain, int port)
1.74 stevesk 662: {
1.142 djm 663: u_int i;
1.74 stevesk 664:
1.315 djm 665: if (port > 0)
666: add_one_listen_addr(options, addr, rdomain, port);
667: else {
668: for (i = 0; i < options->num_ports; i++) {
669: add_one_listen_addr(options, addr, rdomain,
670: options->ports[i]);
671: }
672: }
1.74 stevesk 673: }
674:
1.84 itojun 675: static void
1.315 djm 676: add_one_listen_addr(ServerOptions *options, const char *addr,
677: const char *rdomain, int port)
1.29 markus 678: {
679: struct addrinfo hints, *ai, *aitop;
680: char strport[NI_MAXSERV];
681: int gaierr;
1.315 djm 682: u_int i;
683:
684: /* Find listen_addrs entry for this rdomain */
685: for (i = 0; i < options->num_listen_addrs; i++) {
686: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
687: break;
688: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
689: continue;
690: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
691: break;
692: }
693: if (i >= options->num_listen_addrs) {
694: /* No entry for this rdomain; allocate one */
695: if (i >= INT_MAX)
696: fatal("%s: too many listen addresses", __func__);
697: options->listen_addrs = xrecallocarray(options->listen_addrs,
698: options->num_listen_addrs, options->num_listen_addrs + 1,
699: sizeof(*options->listen_addrs));
700: i = options->num_listen_addrs++;
701: if (rdomain != NULL)
702: options->listen_addrs[i].rdomain = xstrdup(rdomain);
703: }
704: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 705:
1.74 stevesk 706: memset(&hints, 0, sizeof(hints));
1.138 djm 707: hints.ai_family = options->address_family;
1.74 stevesk 708: hints.ai_socktype = SOCK_STREAM;
709: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 710: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 711: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
712: fatal("bad addr or host: %s (%s)",
713: addr ? addr : "<NULL>",
1.173 dtucker 714: ssh_gai_strerror(gaierr));
1.74 stevesk 715: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
716: ;
1.315 djm 717: ai->ai_next = options->listen_addrs[i].addrs;
718: options->listen_addrs[i].addrs = aitop;
719: }
720:
721: /* Returns nonzero if the routing domain name is valid */
722: static int
723: valid_rdomain(const char *name)
724: {
725: const char *errstr;
726: long long num;
727: struct rt_tableinfo info;
728: int mib[6];
729: size_t miblen = sizeof(mib);
730:
731: if (name == NULL)
732: return 1;
733:
734: num = strtonum(name, 0, 255, &errstr);
735: if (errstr != NULL)
736: return 0;
737:
738: /* Check whether the table actually exists */
739: memset(mib, 0, sizeof(mib));
740: mib[0] = CTL_NET;
741: mib[1] = PF_ROUTE;
742: mib[4] = NET_RT_TABLE;
743: mib[5] = (int)num;
744: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
745: return 0;
746:
747: return 1;
1.29 markus 748: }
749:
1.266 dtucker 750: /*
751: * Queue a ListenAddress to be processed once we have all of the Ports
752: * and AddressFamily options.
753: */
754: static void
1.315 djm 755: queue_listen_addr(ServerOptions *options, const char *addr,
756: const char *rdomain, int port)
1.266 dtucker 757: {
1.315 djm 758: struct queued_listenaddr *qla;
759:
760: options->queued_listen_addrs = xrecallocarray(
761: options->queued_listen_addrs,
762: options->num_queued_listens, options->num_queued_listens + 1,
763: sizeof(*options->queued_listen_addrs));
764: qla = &options->queued_listen_addrs[options->num_queued_listens++];
765: qla->addr = xstrdup(addr);
766: qla->port = port;
767: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 768: }
769:
770: /*
771: * Process queued (text) ListenAddress entries.
772: */
773: static void
774: process_queued_listen_addrs(ServerOptions *options)
775: {
776: u_int i;
1.315 djm 777: struct queued_listenaddr *qla;
1.266 dtucker 778:
779: if (options->num_ports == 0)
780: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
781: if (options->address_family == -1)
782: options->address_family = AF_UNSPEC;
783:
784: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 785: qla = &options->queued_listen_addrs[i];
786: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
787: free(qla->addr);
788: free(qla->rdomain);
1.266 dtucker 789: }
790: free(options->queued_listen_addrs);
791: options->queued_listen_addrs = NULL;
792: options->num_queued_listens = 0;
793: }
794:
1.310 djm 795: /*
1.329 djm 796: * Inform channels layer of permitopen options for a single forwarding
797: * direction (local/remote).
1.310 djm 798: */
1.329 djm 799: static void
800: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
801: char **opens, u_int num_opens)
1.310 djm 802: {
803: u_int i;
804: int port;
805: char *host, *arg, *oarg;
1.329 djm 806: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
807: const char *what = lookup_opcode_name(opcode);
1.310 djm 808:
1.329 djm 809: channel_clear_permission(ssh, FORWARD_ADM, where);
810: if (num_opens == 0)
1.310 djm 811: return; /* permit any */
812:
813: /* handle keywords: "any" / "none" */
1.329 djm 814: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 815: return;
1.329 djm 816: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
817: channel_disable_admin(ssh, where);
1.310 djm 818: return;
819: }
820: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 821: for (i = 0; i < num_opens; i++) {
822: oarg = arg = xstrdup(opens[i]);
1.310 djm 823: host = hpdelim(&arg);
824: if (host == NULL)
1.329 djm 825: fatal("%s: missing host in %s", __func__, what);
1.310 djm 826: host = cleanhostname(host);
827: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.329 djm 828: fatal("%s: bad port number in %s", __func__, what);
1.310 djm 829: /* Send it to channels layer */
1.329 djm 830: channel_add_permission(ssh, FORWARD_ADM,
831: where, host, port);
1.310 djm 832: free(oarg);
833: }
834: }
835:
1.329 djm 836: /*
837: * Inform channels layer of permitopen options from configuration.
838: */
839: void
840: process_permitopen(struct ssh *ssh, ServerOptions *options)
841: {
842: process_permitopen_list(ssh, sPermitOpen,
843: options->permitted_opens, options->num_permitted_opens);
1.330 djm 844: process_permitopen_list(ssh, sPermitListen,
845: options->permitted_listens,
846: options->num_permitted_listens);
1.329 djm 847: }
848:
1.226 dtucker 849: struct connection_info *
850: get_connection_info(int populate, int use_dns)
851: {
1.286 djm 852: struct ssh *ssh = active_state; /* XXX */
1.226 dtucker 853: static struct connection_info ci;
854:
855: if (!populate)
856: return &ci;
1.286 djm 857: ci.host = auth_get_canonical_hostname(ssh, use_dns);
858: ci.address = ssh_remote_ipaddr(ssh);
859: ci.laddress = ssh_local_ipaddr(ssh);
860: ci.lport = ssh_local_port(ssh);
1.317 djm 861: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 862: return &ci;
863: }
864:
1.153 dtucker 865: /*
866: * The strategy for the Match blocks is that the config file is parsed twice.
867: *
868: * The first time is at startup. activep is initialized to 1 and the
869: * directives in the global context are processed and acted on. Hitting a
870: * Match directive unsets activep and the directives inside the block are
871: * checked for syntax only.
872: *
873: * The second time is after a connection has been established but before
874: * authentication. activep is initialized to 2 and global config directives
875: * are ignored since they have already been processed. If the criteria in a
876: * Match block is met, activep is set and the subsequent directives
877: * processed and actioned until EOF or another Match block unsets it. Any
878: * options set are copied into the main server config.
879: *
880: * Potential additions/improvements:
1.295 djm 881: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 882: *
883: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
884: * Match Address 192.168.0.*
885: * Tag trusted
886: * Match Group wheel
887: * Tag trusted
888: * Match Tag trusted
889: * AllowTcpForwarding yes
890: * GatewayPorts clientspecified
891: * [...]
892: *
893: * - Add a PermittedChannelRequests directive
894: * Match Group shell
895: * PermittedChannelRequests session,forwarded-tcpip
896: */
897:
898: static int
1.165 dtucker 899: match_cfg_line_group(const char *grps, int line, const char *user)
900: {
901: int result = 0;
902: struct passwd *pw;
903:
904: if (user == NULL)
905: goto out;
906:
907: if ((pw = getpwnam(user)) == NULL) {
908: debug("Can't match group at line %d because user %.100s does "
909: "not exist", line, user);
910: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
911: debug("Can't Match group because user %.100s not in any group "
912: "at line %d", user, line);
1.186 djm 913: } else if (ga_match_pattern_list(grps) != 1) {
914: debug("user %.100s does not match group list %.100s at line %d",
915: user, grps, line);
1.165 dtucker 916: } else {
1.186 djm 917: debug("user %.100s matched group list %.100s at line %d", user,
918: grps, line);
1.165 dtucker 919: result = 1;
920: }
921: out:
922: ga_free();
923: return result;
924: }
925:
1.319 dtucker 926: static void
927: match_test_missing_fatal(const char *criteria, const char *attrib)
928: {
929: fatal("'Match %s' in configuration but '%s' not in connection "
930: "test specification.", criteria, attrib);
931: }
932:
1.226 dtucker 933: /*
1.230 dtucker 934: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 935: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 936: * not match.
1.226 dtucker 937: */
1.165 dtucker 938: static int
1.226 dtucker 939: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 940: {
1.243 dtucker 941: int result = 1, attributes = 0, port;
1.153 dtucker 942: char *arg, *attrib, *cp = *condition;
943:
1.226 dtucker 944: if (ci == NULL)
1.153 dtucker 945: debug3("checking syntax for 'Match %s'", cp);
946: else
1.226 dtucker 947: debug3("checking match for '%s' user %s host %s addr %s "
948: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
949: ci->host ? ci->host : "(null)",
950: ci->address ? ci->address : "(null)",
951: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 952:
953: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 954: attributes++;
955: if (strcasecmp(attrib, "all") == 0) {
956: if (attributes != 1 ||
957: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
958: error("'all' cannot be combined with other "
959: "Match attributes");
960: return -1;
961: }
962: *condition = cp;
963: return 1;
964: }
1.153 dtucker 965: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
966: error("Missing Match criteria for %s", attrib);
967: return -1;
968: }
969: if (strcasecmp(attrib, "user") == 0) {
1.319 dtucker 970: if (ci == NULL) {
1.153 dtucker 971: result = 0;
972: continue;
973: }
1.319 dtucker 974: if (ci->user == NULL)
975: match_test_missing_fatal("User", "user");
1.269 djm 976: if (match_pattern_list(ci->user, arg, 0) != 1)
1.153 dtucker 977: result = 0;
978: else
979: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 980: "line %d", ci->user, arg, line);
1.165 dtucker 981: } else if (strcasecmp(attrib, "group") == 0) {
1.319 dtucker 982: if (ci == NULL) {
1.226 dtucker 983: result = 0;
984: continue;
985: }
1.319 dtucker 986: if (ci->user == NULL)
987: match_test_missing_fatal("Group", "user");
1.226 dtucker 988: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 989: case -1:
990: return -1;
991: case 0:
992: result = 0;
993: }
1.153 dtucker 994: } else if (strcasecmp(attrib, "host") == 0) {
1.319 dtucker 995: if (ci == NULL) {
1.153 dtucker 996: result = 0;
997: continue;
998: }
1.319 dtucker 999: if (ci->host == NULL)
1000: match_test_missing_fatal("Host", "host");
1.269 djm 1001: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1002: result = 0;
1003: else
1004: debug("connection from %.100s matched 'Host "
1.226 dtucker 1005: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1006: } else if (strcasecmp(attrib, "address") == 0) {
1.319 dtucker 1007: if (ci == NULL) {
1.226 dtucker 1008: result = 0;
1009: continue;
1010: }
1.319 dtucker 1011: if (ci->address == NULL)
1012: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1013: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1014: case 1:
1015: debug("connection from %.100s matched 'Address "
1.226 dtucker 1016: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1017: break;
1018: case 0:
1.183 djm 1019: case -1:
1.153 dtucker 1020: result = 0;
1.181 djm 1021: break;
1.183 djm 1022: case -2:
1.181 djm 1023: return -1;
1.153 dtucker 1024: }
1.226 dtucker 1025: } else if (strcasecmp(attrib, "localaddress") == 0){
1.319 dtucker 1026: if (ci == NULL) {
1.226 dtucker 1027: result = 0;
1028: continue;
1029: }
1.319 dtucker 1030: if (ci->laddress == NULL)
1031: match_test_missing_fatal("LocalAddress",
1032: "laddr");
1.226 dtucker 1033: switch (addr_match_list(ci->laddress, arg)) {
1034: case 1:
1035: debug("connection from %.100s matched "
1036: "'LocalAddress %.100s' at line %d",
1037: ci->laddress, arg, line);
1038: break;
1039: case 0:
1040: case -1:
1041: result = 0;
1042: break;
1043: case -2:
1044: return -1;
1045: }
1046: } else if (strcasecmp(attrib, "localport") == 0) {
1047: if ((port = a2port(arg)) == -1) {
1048: error("Invalid LocalPort '%s' on Match line",
1049: arg);
1050: return -1;
1051: }
1.319 dtucker 1052: if (ci == NULL) {
1.226 dtucker 1053: result = 0;
1054: continue;
1055: }
1.319 dtucker 1056: if (ci->lport == 0)
1057: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1058: /* TODO support port lists */
1059: if (port == ci->lport)
1060: debug("connection from %.100s matched "
1061: "'LocalPort %d' at line %d",
1062: ci->laddress, port, line);
1063: else
1064: result = 0;
1.317 djm 1065: } else if (strcasecmp(attrib, "rdomain") == 0) {
1066: if (ci == NULL || ci->rdomain == NULL) {
1067: result = 0;
1068: continue;
1069: }
1070: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1071: result = 0;
1072: else
1073: debug("user %.100s matched 'RDomain %.100s' at "
1074: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1075: } else {
1076: error("Unsupported Match attribute %s", attrib);
1077: return -1;
1078: }
1.243 dtucker 1079: }
1080: if (attributes == 0) {
1081: error("One or more attributes required for Match");
1082: return -1;
1.153 dtucker 1083: }
1.226 dtucker 1084: if (ci != NULL)
1.153 dtucker 1085: debug3("match %sfound", result ? "" : "not ");
1086: *condition = cp;
1087: return result;
1088: }
1089:
1.158 dtucker 1090: #define WHITESPACE " \t\r\n"
1091:
1.220 djm 1092: /* Multistate option parsing */
1093: struct multistate {
1094: char *key;
1095: int value;
1096: };
1.320 djm 1097: static const struct multistate multistate_flag[] = {
1098: { "yes", 1 },
1099: { "no", 0 },
1100: { NULL, -1 }
1101: };
1.220 djm 1102: static const struct multistate multistate_addressfamily[] = {
1103: { "inet", AF_INET },
1104: { "inet6", AF_INET6 },
1105: { "any", AF_UNSPEC },
1106: { NULL, -1 }
1107: };
1108: static const struct multistate multistate_permitrootlogin[] = {
1109: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1110: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1111: { "forced-commands-only", PERMIT_FORCED_ONLY },
1112: { "yes", PERMIT_YES },
1113: { "no", PERMIT_NO },
1114: { NULL, -1 }
1115: };
1116: static const struct multistate multistate_compression[] = {
1.337 sf 1117: { "yes", COMP_DELAYED },
1118: { "delayed", COMP_DELAYED },
1.220 djm 1119: { "no", COMP_NONE },
1120: { NULL, -1 }
1121: };
1122: static const struct multistate multistate_gatewayports[] = {
1123: { "clientspecified", 2 },
1124: { "yes", 1 },
1125: { "no", 0 },
1.222 djm 1126: { NULL, -1 }
1127: };
1.233 djm 1128: static const struct multistate multistate_tcpfwd[] = {
1129: { "yes", FORWARD_ALLOW },
1130: { "all", FORWARD_ALLOW },
1131: { "no", FORWARD_DENY },
1132: { "remote", FORWARD_REMOTE },
1133: { "local", FORWARD_LOCAL },
1134: { NULL, -1 }
1135: };
1.220 djm 1136:
1.94 markus 1137: int
1138: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 1139: const char *filename, int linenum, int *activep,
1140: struct connection_info *connectinfo)
1.1 deraadt 1141: {
1.329 djm 1142: char *cp, ***chararrayptr, **charptr, *arg, *arg2, *p;
1.237 dtucker 1143: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 1144: SyslogFacility *log_facility_ptr;
1145: LogLevel *log_level_ptr;
1.25 markus 1146: ServerOpCodes opcode;
1.329 djm 1147: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1148: size_t len;
1.237 dtucker 1149: long long val64;
1.220 djm 1150: const struct multistate *multistate_ptr;
1.322 dtucker 1151: const char *errstr;
1.303 djm 1152:
1153: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1154: if ((len = strlen(line)) == 0)
1155: return 0;
1156: for (len--; len > 0; len--) {
1157: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1158: break;
1159: line[len] = '\0';
1160: }
1.25 markus 1161:
1.94 markus 1162: cp = line;
1.148 dtucker 1163: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 1164: return 0;
1.94 markus 1165: /* Ignore leading whitespace */
1166: if (*arg == '\0')
1167: arg = strdelim(&cp);
1168: if (!arg || !*arg || *arg == '#')
1169: return 0;
1170: intptr = NULL;
1171: charptr = NULL;
1.153 dtucker 1172: opcode = parse_token(arg, filename, linenum, &flags);
1173:
1174: if (activep == NULL) { /* We are processing a command line directive */
1175: cmdline = 1;
1176: activep = &cmdline;
1177: }
1178: if (*activep && opcode != sMatch)
1179: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
1180: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1181: if (connectinfo == NULL) {
1.153 dtucker 1182: fatal("%s line %d: Directive '%s' is not allowed "
1183: "within a Match block", filename, linenum, arg);
1184: } else { /* this is a directive we have already processed */
1185: while (arg)
1186: arg = strdelim(&cp);
1187: return 0;
1188: }
1189: }
1190:
1.94 markus 1191: switch (opcode) {
1192: case sBadOption:
1193: return -1;
1194: case sPort:
1195: /* ignore ports from configfile if cmdline specifies ports */
1196: if (options->ports_from_cmdline)
1197: return 0;
1198: if (options->num_ports >= MAX_PORTS)
1199: fatal("%s line %d: too many ports.",
1200: filename, linenum);
1.48 provos 1201: arg = strdelim(&cp);
1.94 markus 1202: if (!arg || *arg == '\0')
1203: fatal("%s line %d: missing port number.",
1204: filename, linenum);
1205: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1206: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1207: fatal("%s line %d: Badly formatted port number.",
1208: filename, linenum);
1209: break;
1.29 markus 1210:
1.94 markus 1211: case sLoginGraceTime:
1212: intptr = &options->login_grace_time;
1.180 djm 1213: parse_time:
1.94 markus 1214: arg = strdelim(&cp);
1215: if (!arg || *arg == '\0')
1216: fatal("%s line %d: missing time value.",
1217: filename, linenum);
1218: if ((value = convtime(arg)) == -1)
1219: fatal("%s line %d: invalid time value.",
1220: filename, linenum);
1.268 djm 1221: if (*activep && *intptr == -1)
1.94 markus 1222: *intptr = value;
1223: break;
1224:
1225: case sListenAddress:
1226: arg = strdelim(&cp);
1.139 djm 1227: if (arg == NULL || *arg == '\0')
1228: fatal("%s line %d: missing address",
1.94 markus 1229: filename, linenum);
1.144 dtucker 1230: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1231: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1232: && strchr(p+1, ':') != NULL) {
1.315 djm 1233: port = 0;
1234: p = arg;
1235: } else {
1236: p = hpdelim(&arg);
1237: if (p == NULL)
1238: fatal("%s line %d: bad address:port usage",
1239: filename, linenum);
1240: p = cleanhostname(p);
1241: if (arg == NULL)
1242: port = 0;
1243: else if ((port = a2port(arg)) <= 0)
1244: fatal("%s line %d: bad port number",
1245: filename, linenum);
1246: }
1247: /* Optional routing table */
1248: arg2 = NULL;
1249: if ((arg = strdelim(&cp)) != NULL) {
1250: if (strcmp(arg, "rdomain") != 0 ||
1251: (arg2 = strdelim(&cp)) == NULL)
1252: fatal("%s line %d: bad ListenAddress syntax",
1253: filename, linenum);
1254: if (!valid_rdomain(arg2))
1255: fatal("%s line %d: bad routing domain",
1256: filename, linenum);
1.144 dtucker 1257: }
1.139 djm 1258:
1.315 djm 1259: queue_listen_addr(options, p, arg2, port);
1.25 markus 1260:
1.138 djm 1261: break;
1262:
1263: case sAddressFamily:
1.220 djm 1264: intptr = &options->address_family;
1265: multistate_ptr = multistate_addressfamily;
1266: parse_multistate:
1.138 djm 1267: arg = strdelim(&cp);
1.141 markus 1268: if (!arg || *arg == '\0')
1.220 djm 1269: fatal("%s line %d: missing argument.",
1.141 markus 1270: filename, linenum);
1.220 djm 1271: value = -1;
1272: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1273: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1274: value = multistate_ptr[i].value;
1275: break;
1276: }
1277: }
1278: if (value == -1)
1279: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1280: filename, linenum, arg);
1.220 djm 1281: if (*activep && *intptr == -1)
1.138 djm 1282: *intptr = value;
1.94 markus 1283: break;
1284:
1285: case sHostKeyFile:
1286: arg = strdelim(&cp);
1287: if (!arg || *arg == '\0')
1288: fatal("%s line %d: missing file name.",
1289: filename, linenum);
1.314 djm 1290: if (*activep)
1291: servconf_add_hostkey(filename, linenum, options, arg);
1.94 markus 1292: break;
1.76 stevesk 1293:
1.240 markus 1294: case sHostKeyAgent:
1295: charptr = &options->host_key_agent;
1296: arg = strdelim(&cp);
1297: if (!arg || *arg == '\0')
1298: fatal("%s line %d: missing socket name.",
1299: filename, linenum);
1300: if (*activep && *charptr == NULL)
1301: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1302: xstrdup(arg) : derelativise_path(arg);
1303: break;
1304:
1.203 djm 1305: case sHostCertificate:
1.314 djm 1306: arg = strdelim(&cp);
1307: if (!arg || *arg == '\0')
1308: fatal("%s line %d: missing file name.",
1309: filename, linenum);
1310: if (*activep)
1311: servconf_add_hostcert(filename, linenum, options, arg);
1312: break;
1.203 djm 1313:
1.94 markus 1314: case sPidFile:
1315: charptr = &options->pid_file;
1.314 djm 1316: parse_filename:
1317: arg = strdelim(&cp);
1318: if (!arg || *arg == '\0')
1319: fatal("%s line %d: missing file name.",
1320: filename, linenum);
1321: if (*activep && *charptr == NULL) {
1322: *charptr = derelativise_path(arg);
1323: /* increase optional counter */
1324: if (intptr != NULL)
1325: *intptr = *intptr + 1;
1326: }
1327: break;
1.25 markus 1328:
1.94 markus 1329: case sPermitRootLogin:
1330: intptr = &options->permit_root_login;
1.220 djm 1331: multistate_ptr = multistate_permitrootlogin;
1332: goto parse_multistate;
1.36 markus 1333:
1.94 markus 1334: case sIgnoreRhosts:
1335: intptr = &options->ignore_rhosts;
1.180 djm 1336: parse_flag:
1.320 djm 1337: multistate_ptr = multistate_flag;
1338: goto parse_multistate;
1.94 markus 1339:
1340: case sIgnoreUserKnownHosts:
1341: intptr = &options->ignore_user_known_hosts;
1342: goto parse_flag;
1343:
1344: case sHostbasedAuthentication:
1345: intptr = &options->hostbased_authentication;
1346: goto parse_flag;
1347:
1348: case sHostbasedUsesNameFromPacketOnly:
1349: intptr = &options->hostbased_uses_name_from_packet_only;
1350: goto parse_flag;
1351:
1.258 djm 1352: case sHostbasedAcceptedKeyTypes:
1353: charptr = &options->hostbased_key_types;
1354: parse_keytypes:
1355: arg = strdelim(&cp);
1356: if (!arg || *arg == '\0')
1357: fatal("%s line %d: Missing argument.",
1358: filename, linenum);
1.304 djm 1359: if (*arg != '-' &&
1360: !sshkey_names_valid2(*arg == '+' ? arg + 1 : arg, 1))
1.258 djm 1361: fatal("%s line %d: Bad key types '%s'.",
1362: filename, linenum, arg ? arg : "<NONE>");
1363: if (*activep && *charptr == NULL)
1364: *charptr = xstrdup(arg);
1365: break;
1366:
1.276 markus 1367: case sHostKeyAlgorithms:
1368: charptr = &options->hostkeyalgorithms;
1369: goto parse_keytypes;
1370:
1.94 markus 1371: case sPubkeyAuthentication:
1372: intptr = &options->pubkey_authentication;
1373: goto parse_flag;
1.119 jakob 1374:
1.258 djm 1375: case sPubkeyAcceptedKeyTypes:
1376: charptr = &options->pubkey_key_types;
1377: goto parse_keytypes;
1378:
1.94 markus 1379: case sKerberosAuthentication:
1380: intptr = &options->kerberos_authentication;
1381: goto parse_flag;
1382:
1383: case sKerberosOrLocalPasswd:
1384: intptr = &options->kerberos_or_local_passwd;
1385: goto parse_flag;
1386:
1387: case sKerberosTicketCleanup:
1388: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1389: goto parse_flag;
1390:
1391: case sKerberosGetAFSToken:
1392: intptr = &options->kerberos_get_afs_token;
1.125 markus 1393: goto parse_flag;
1394:
1395: case sGssAuthentication:
1396: intptr = &options->gss_authentication;
1397: goto parse_flag;
1398:
1399: case sGssCleanupCreds:
1400: intptr = &options->gss_cleanup_creds;
1.271 djm 1401: goto parse_flag;
1402:
1403: case sGssStrictAcceptor:
1404: intptr = &options->gss_strict_acceptor;
1.94 markus 1405: goto parse_flag;
1406:
1407: case sPasswordAuthentication:
1408: intptr = &options->password_authentication;
1409: goto parse_flag;
1410:
1411: case sKbdInteractiveAuthentication:
1412: intptr = &options->kbd_interactive_authentication;
1413: goto parse_flag;
1414:
1415: case sChallengeResponseAuthentication:
1416: intptr = &options->challenge_response_authentication;
1417: goto parse_flag;
1418:
1419: case sPrintMotd:
1420: intptr = &options->print_motd;
1421: goto parse_flag;
1422:
1423: case sPrintLastLog:
1424: intptr = &options->print_lastlog;
1425: goto parse_flag;
1426:
1427: case sX11Forwarding:
1428: intptr = &options->x11_forwarding;
1429: goto parse_flag;
1430:
1431: case sX11DisplayOffset:
1432: intptr = &options->x11_display_offset;
1.293 naddy 1433: parse_int:
1434: arg = strdelim(&cp);
1.322 dtucker 1435: if ((errstr = atoi_err(arg, &value)) != NULL)
1436: fatal("%s line %d: integer value %s.",
1437: filename, linenum, errstr);
1.293 naddy 1438: if (*activep && *intptr == -1)
1439: *intptr = value;
1440: break;
1.99 stevesk 1441:
1442: case sX11UseLocalhost:
1443: intptr = &options->x11_use_localhost;
1444: goto parse_flag;
1.94 markus 1445:
1446: case sXAuthLocation:
1447: charptr = &options->xauth_location;
1448: goto parse_filename;
1449:
1.244 djm 1450: case sPermitTTY:
1451: intptr = &options->permit_tty;
1452: goto parse_flag;
1453:
1.250 djm 1454: case sPermitUserRC:
1455: intptr = &options->permit_user_rc;
1456: goto parse_flag;
1457:
1.94 markus 1458: case sStrictModes:
1459: intptr = &options->strict_modes;
1460: goto parse_flag;
1461:
1.129 markus 1462: case sTCPKeepAlive:
1463: intptr = &options->tcp_keep_alive;
1.94 markus 1464: goto parse_flag;
1465:
1466: case sEmptyPasswd:
1467: intptr = &options->permit_empty_passwd;
1.113 markus 1468: goto parse_flag;
1469:
1470: case sPermitUserEnvironment:
1471: intptr = &options->permit_user_env;
1.334 djm 1472: charptr = &options->permit_user_env_whitelist;
1473: arg = strdelim(&cp);
1474: if (!arg || *arg == '\0')
1475: fatal("%s line %d: missing argument.",
1476: filename, linenum);
1477: value = 0;
1478: p = NULL;
1479: if (strcmp(arg, "yes") == 0)
1480: value = 1;
1481: else if (strcmp(arg, "no") == 0)
1482: value = 0;
1483: else {
1484: /* Pattern-list specified */
1485: value = 1;
1486: p = xstrdup(arg);
1487: }
1488: if (*activep && *intptr == -1) {
1489: *intptr = value;
1490: *charptr = p;
1491: p = NULL;
1492: }
1493: free(p);
1494: break;
1.94 markus 1495:
1.111 markus 1496: case sCompression:
1497: intptr = &options->compression;
1.220 djm 1498: multistate_ptr = multistate_compression;
1499: goto parse_multistate;
1.94 markus 1500:
1.235 dtucker 1501: case sRekeyLimit:
1502: arg = strdelim(&cp);
1503: if (!arg || *arg == '\0')
1504: fatal("%.200s line %d: Missing argument.", filename,
1505: linenum);
1506: if (strcmp(arg, "default") == 0) {
1507: val64 = 0;
1508: } else {
1.236 dtucker 1509: if (scan_scaled(arg, &val64) == -1)
1510: fatal("%.200s line %d: Bad number '%s': %s",
1511: filename, linenum, arg, strerror(errno));
1.235 dtucker 1512: if (val64 != 0 && val64 < 16)
1513: fatal("%.200s line %d: RekeyLimit too small",
1514: filename, linenum);
1515: }
1516: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1517: options->rekey_limit = val64;
1.235 dtucker 1518: if (cp != NULL) { /* optional rekey interval present */
1519: if (strcmp(cp, "none") == 0) {
1520: (void)strdelim(&cp); /* discard */
1521: break;
1522: }
1523: intptr = &options->rekey_interval;
1524: goto parse_time;
1525: }
1526: break;
1527:
1.94 markus 1528: case sGatewayPorts:
1.251 millert 1529: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1530: multistate_ptr = multistate_gatewayports;
1531: goto parse_multistate;
1.25 markus 1532:
1.122 markus 1533: case sUseDNS:
1534: intptr = &options->use_dns;
1.94 markus 1535: goto parse_flag;
1.53 markus 1536:
1.94 markus 1537: case sLogFacility:
1.174 dtucker 1538: log_facility_ptr = &options->log_facility;
1.94 markus 1539: arg = strdelim(&cp);
1540: value = log_facility_number(arg);
1.101 markus 1541: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1542: fatal("%.200s line %d: unsupported log facility '%s'",
1543: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1544: if (*log_facility_ptr == -1)
1545: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1546: break;
1.25 markus 1547:
1.94 markus 1548: case sLogLevel:
1.174 dtucker 1549: log_level_ptr = &options->log_level;
1.94 markus 1550: arg = strdelim(&cp);
1551: value = log_level_number(arg);
1.101 markus 1552: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1553: fatal("%.200s line %d: unsupported log level '%s'",
1554: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1555: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1556: *log_level_ptr = (LogLevel) value;
1.94 markus 1557: break;
1558:
1559: case sAllowTcpForwarding:
1560: intptr = &options->allow_tcp_forwarding;
1.233 djm 1561: multistate_ptr = multistate_tcpfwd;
1562: goto parse_multistate;
1.102 provos 1563:
1.251 millert 1564: case sAllowStreamLocalForwarding:
1565: intptr = &options->allow_streamlocal_forwarding;
1566: multistate_ptr = multistate_tcpfwd;
1567: goto parse_multistate;
1568:
1.178 pyr 1569: case sAllowAgentForwarding:
1570: intptr = &options->allow_agent_forwarding;
1571: goto parse_flag;
1572:
1.301 djm 1573: case sDisableForwarding:
1574: intptr = &options->disable_forwarding;
1575: goto parse_flag;
1576:
1.94 markus 1577: case sAllowUsers:
1578: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1579: if (match_user(NULL, NULL, NULL, arg) == -1)
1580: fatal("%s line %d: invalid AllowUsers pattern: "
1581: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1582: if (!*activep)
1583: continue;
1.314 djm 1584: array_append(filename, linenum, "AllowUsers",
1585: &options->allow_users, &options->num_allow_users,
1586: arg);
1.94 markus 1587: }
1588: break;
1.25 markus 1589:
1.94 markus 1590: case sDenyUsers:
1591: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1592: if (match_user(NULL, NULL, NULL, arg) == -1)
1593: fatal("%s line %d: invalid DenyUsers pattern: "
1594: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1595: if (!*activep)
1596: continue;
1.314 djm 1597: array_append(filename, linenum, "DenyUsers",
1598: &options->deny_users, &options->num_deny_users,
1599: arg);
1.94 markus 1600: }
1601: break;
1.25 markus 1602:
1.94 markus 1603: case sAllowGroups:
1604: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1605: if (!*activep)
1606: continue;
1.314 djm 1607: array_append(filename, linenum, "AllowGroups",
1608: &options->allow_groups, &options->num_allow_groups,
1609: arg);
1.94 markus 1610: }
1611: break;
1.33 markus 1612:
1.94 markus 1613: case sDenyGroups:
1614: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1615: if (!*activep)
1616: continue;
1.314 djm 1617: array_append(filename, linenum, "DenyGroups",
1618: &options->deny_groups, &options->num_deny_groups,
1619: arg);
1.94 markus 1620: }
1621: break;
1.66 markus 1622:
1.94 markus 1623: case sCiphers:
1624: arg = strdelim(&cp);
1625: if (!arg || *arg == '\0')
1626: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1627: if (*arg != '-' && !ciphers_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1628: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1629: filename, linenum, arg ? arg : "<NONE>");
1630: if (options->ciphers == NULL)
1631: options->ciphers = xstrdup(arg);
1632: break;
1.33 markus 1633:
1.94 markus 1634: case sMacs:
1635: arg = strdelim(&cp);
1636: if (!arg || *arg == '\0')
1637: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1638: if (*arg != '-' && !mac_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1639: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1640: filename, linenum, arg ? arg : "<NONE>");
1641: if (options->macs == NULL)
1642: options->macs = xstrdup(arg);
1.211 djm 1643: break;
1644:
1645: case sKexAlgorithms:
1646: arg = strdelim(&cp);
1647: if (!arg || *arg == '\0')
1648: fatal("%s line %d: Missing argument.",
1649: filename, linenum);
1.304 djm 1650: if (*arg != '-' &&
1651: !kex_names_valid(*arg == '+' ? arg + 1 : arg))
1.211 djm 1652: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1653: filename, linenum, arg ? arg : "<NONE>");
1654: if (options->kex_algorithms == NULL)
1655: options->kex_algorithms = xstrdup(arg);
1.94 markus 1656: break;
1.43 jakob 1657:
1.94 markus 1658: case sSubsystem:
1659: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1660: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1661: filename, linenum);
1.94 markus 1662: }
1663: arg = strdelim(&cp);
1664: if (!arg || *arg == '\0')
1665: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1666: filename, linenum);
1.153 dtucker 1667: if (!*activep) {
1668: arg = strdelim(&cp);
1669: break;
1670: }
1.94 markus 1671: for (i = 0; i < options->num_subsystems; i++)
1672: if (strcmp(arg, options->subsystem_name[i]) == 0)
1673: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1674: filename, linenum, arg);
1.94 markus 1675: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1676: arg = strdelim(&cp);
1677: if (!arg || *arg == '\0')
1678: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1679: filename, linenum);
1.94 markus 1680: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1681:
1682: /* Collect arguments (separate to executable) */
1683: p = xstrdup(arg);
1684: len = strlen(p) + 1;
1685: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1686: len += 1 + strlen(arg);
1.264 deraadt 1687: p = xreallocarray(p, 1, len);
1.151 djm 1688: strlcat(p, " ", len);
1689: strlcat(p, arg, len);
1690: }
1691: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1692: options->num_subsystems++;
1693: break;
1.46 markus 1694:
1.94 markus 1695: case sMaxStartups:
1696: arg = strdelim(&cp);
1697: if (!arg || *arg == '\0')
1698: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1699: filename, linenum);
1.94 markus 1700: if ((n = sscanf(arg, "%d:%d:%d",
1701: &options->max_startups_begin,
1702: &options->max_startups_rate,
1703: &options->max_startups)) == 3) {
1704: if (options->max_startups_begin >
1705: options->max_startups ||
1706: options->max_startups_rate > 100 ||
1707: options->max_startups_rate < 1)
1.50 markus 1708: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1709: filename, linenum);
1.94 markus 1710: } else if (n != 1)
1711: fatal("%s line %d: Illegal MaxStartups spec.",
1712: filename, linenum);
1713: else
1714: options->max_startups = options->max_startups_begin;
1715: break;
1.133 dtucker 1716:
1717: case sMaxAuthTries:
1718: intptr = &options->max_authtries;
1719: goto parse_int;
1.94 markus 1720:
1.180 djm 1721: case sMaxSessions:
1722: intptr = &options->max_sessions;
1723: goto parse_int;
1724:
1.94 markus 1725: case sBanner:
1726: charptr = &options->banner;
1727: goto parse_filename;
1.176 djm 1728:
1.94 markus 1729: /*
1730: * These options can contain %X options expanded at
1731: * connect time, so that you can specify paths like:
1732: *
1733: * AuthorizedKeysFile /etc/ssh_keys/%u
1734: */
1735: case sAuthorizedKeysFile:
1.219 djm 1736: if (*activep && options->num_authkeys_files == 0) {
1737: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.314 djm 1738: arg = tilde_expand_filename(arg, getuid());
1739: array_append(filename, linenum,
1740: "AuthorizedKeysFile",
1741: &options->authorized_keys_files,
1742: &options->num_authkeys_files, arg);
1743: free(arg);
1.219 djm 1744: }
1745: }
1746: return 0;
1747:
1.208 djm 1748: case sAuthorizedPrincipalsFile:
1749: charptr = &options->authorized_principals_file;
1.205 djm 1750: arg = strdelim(&cp);
1751: if (!arg || *arg == '\0')
1752: fatal("%s line %d: missing file name.",
1753: filename, linenum);
1754: if (*activep && *charptr == NULL) {
1.206 markus 1755: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1756: /* increase optional counter */
1757: if (intptr != NULL)
1758: *intptr = *intptr + 1;
1759: }
1760: break;
1.94 markus 1761:
1762: case sClientAliveInterval:
1763: intptr = &options->client_alive_interval;
1764: goto parse_time;
1765:
1766: case sClientAliveCountMax:
1767: intptr = &options->client_alive_count_max;
1768: goto parse_int;
1.131 djm 1769:
1770: case sAcceptEnv:
1771: while ((arg = strdelim(&cp)) && *arg != '\0') {
1772: if (strchr(arg, '=') != NULL)
1773: fatal("%s line %d: Invalid environment name.",
1774: filename, linenum);
1.153 dtucker 1775: if (!*activep)
1.227 markus 1776: continue;
1.314 djm 1777: array_append(filename, linenum, "AcceptEnv",
1778: &options->accept_env, &options->num_accept_env,
1779: arg);
1.131 djm 1780: }
1781: break;
1.145 reyk 1782:
1.332 djm 1783: case sSetEnv:
1784: uvalue = options->num_setenv;
1785: while ((arg = strdelimw(&cp)) && *arg != '\0') {
1786: if (strchr(arg, '=') == NULL)
1787: fatal("%s line %d: Invalid environment.",
1788: filename, linenum);
1789: if (!*activep || uvalue != 0)
1790: continue;
1791: array_append(filename, linenum, "SetEnv",
1792: &options->setenv, &options->num_setenv, arg);
1793: }
1794: break;
1795:
1.145 reyk 1796: case sPermitTunnel:
1797: intptr = &options->permit_tun;
1.146 reyk 1798: arg = strdelim(&cp);
1799: if (!arg || *arg == '\0')
1800: fatal("%s line %d: Missing yes/point-to-point/"
1801: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1802: value = -1;
1803: for (i = 0; tunmode_desc[i].val != -1; i++)
1804: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1805: value = tunmode_desc[i].val;
1806: break;
1807: }
1808: if (value == -1)
1.146 reyk 1809: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1810: "no argument: %s", filename, linenum, arg);
1.268 djm 1811: if (*activep && *intptr == -1)
1.146 reyk 1812: *intptr = value;
1813: break;
1.94 markus 1814:
1.153 dtucker 1815: case sMatch:
1816: if (cmdline)
1817: fatal("Match directive not supported as a command-line "
1818: "option");
1.226 dtucker 1819: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1820: if (value < 0)
1821: fatal("%s line %d: Bad Match condition", filename,
1822: linenum);
1823: *activep = value;
1.156 dtucker 1824: break;
1825:
1.330 djm 1826: case sPermitListen:
1.156 dtucker 1827: case sPermitOpen:
1.330 djm 1828: if (opcode == sPermitListen) {
1829: uintptr = &options->num_permitted_listens;
1830: chararrayptr = &options->permitted_listens;
1.329 djm 1831: } else {
1832: uintptr = &options->num_permitted_opens;
1833: chararrayptr = &options->permitted_opens;
1834: }
1.156 dtucker 1835: arg = strdelim(&cp);
1836: if (!arg || *arg == '\0')
1.329 djm 1837: fatal("%s line %d: missing %s specification",
1838: filename, linenum, lookup_opcode_name(opcode));
1839: uvalue = *uintptr; /* modified later */
1.310 djm 1840: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 1841: if (*activep && uvalue == 0) {
1842: *uintptr = 1;
1843: *chararrayptr = xcalloc(1,
1844: sizeof(**chararrayptr));
1845: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 1846: }
1.156 dtucker 1847: break;
1848: }
1.159 dtucker 1849: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1.333 djm 1850: if (opcode == sPermitListen &&
1851: strchr(arg, ':') == NULL) {
1852: /*
1853: * Allow bare port number for PermitListen
1854: * to indicate a wildcard listen host.
1855: */
1856: xasprintf(&arg2, "*:%s", arg);
1857: } else {
1858: arg2 = xstrdup(arg);
1859: p = hpdelim(&arg);
1860: if (p == NULL) {
1861: fatal("%s line %d: missing host in %s",
1862: filename, linenum,
1863: lookup_opcode_name(opcode));
1864: }
1865: p = cleanhostname(p);
1.329 djm 1866: }
1867: if (arg == NULL ||
1868: ((port = permitopen_port(arg)) < 0)) {
1869: fatal("%s line %d: bad port number in %s",
1870: filename, linenum,
1871: lookup_opcode_name(opcode));
1872: }
1873: if (*activep && uvalue == 0) {
1.314 djm 1874: array_append(filename, linenum,
1.329 djm 1875: lookup_opcode_name(opcode),
1876: chararrayptr, uintptr, arg2);
1.314 djm 1877: }
1878: free(arg2);
1.159 dtucker 1879: }
1.153 dtucker 1880: break;
1881:
1.158 dtucker 1882: case sForceCommand:
1.262 dtucker 1883: if (cp == NULL || *cp == '\0')
1.158 dtucker 1884: fatal("%.200s line %d: Missing argument.", filename,
1885: linenum);
1886: len = strspn(cp, WHITESPACE);
1887: if (*activep && options->adm_forced_command == NULL)
1888: options->adm_forced_command = xstrdup(cp + len);
1889: return 0;
1890:
1.176 djm 1891: case sChrootDirectory:
1892: charptr = &options->chroot_directory;
1.177 djm 1893:
1894: arg = strdelim(&cp);
1895: if (!arg || *arg == '\0')
1896: fatal("%s line %d: missing file name.",
1897: filename, linenum);
1898: if (*activep && *charptr == NULL)
1899: *charptr = xstrdup(arg);
1900: break;
1.176 djm 1901:
1.204 djm 1902: case sTrustedUserCAKeys:
1903: charptr = &options->trusted_user_ca_keys;
1904: goto parse_filename;
1905:
1906: case sRevokedKeys:
1907: charptr = &options->revoked_keys_file;
1908: goto parse_filename;
1909:
1.213 djm 1910: case sIPQoS:
1911: arg = strdelim(&cp);
1912: if ((value = parse_ipqos(arg)) == -1)
1913: fatal("%s line %d: Bad IPQoS value: %s",
1914: filename, linenum, arg);
1915: arg = strdelim(&cp);
1916: if (arg == NULL)
1917: value2 = value;
1918: else if ((value2 = parse_ipqos(arg)) == -1)
1919: fatal("%s line %d: Bad IPQoS value: %s",
1920: filename, linenum, arg);
1921: if (*activep) {
1922: options->ip_qos_interactive = value;
1923: options->ip_qos_bulk = value2;
1924: }
1925: break;
1926:
1.225 djm 1927: case sVersionAddendum:
1.262 dtucker 1928: if (cp == NULL || *cp == '\0')
1.225 djm 1929: fatal("%.200s line %d: Missing argument.", filename,
1930: linenum);
1931: len = strspn(cp, WHITESPACE);
1932: if (*activep && options->version_addendum == NULL) {
1933: if (strcasecmp(cp + len, "none") == 0)
1934: options->version_addendum = xstrdup("");
1935: else if (strchr(cp + len, '\r') != NULL)
1936: fatal("%.200s line %d: Invalid argument",
1937: filename, linenum);
1938: else
1939: options->version_addendum = xstrdup(cp + len);
1940: }
1941: return 0;
1942:
1.231 djm 1943: case sAuthorizedKeysCommand:
1.255 jsg 1944: if (cp == NULL)
1945: fatal("%.200s line %d: Missing argument.", filename,
1946: linenum);
1.231 djm 1947: len = strspn(cp, WHITESPACE);
1948: if (*activep && options->authorized_keys_command == NULL) {
1949: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1950: fatal("%.200s line %d: AuthorizedKeysCommand "
1951: "must be an absolute path",
1952: filename, linenum);
1953: options->authorized_keys_command = xstrdup(cp + len);
1954: }
1955: return 0;
1956:
1957: case sAuthorizedKeysCommandUser:
1958: charptr = &options->authorized_keys_command_user;
1959:
1960: arg = strdelim(&cp);
1.255 jsg 1961: if (!arg || *arg == '\0')
1962: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1963: "argument.", filename, linenum);
1.231 djm 1964: if (*activep && *charptr == NULL)
1965: *charptr = xstrdup(arg);
1966: break;
1967:
1.270 djm 1968: case sAuthorizedPrincipalsCommand:
1969: if (cp == NULL)
1970: fatal("%.200s line %d: Missing argument.", filename,
1971: linenum);
1972: len = strspn(cp, WHITESPACE);
1973: if (*activep &&
1974: options->authorized_principals_command == NULL) {
1975: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1976: fatal("%.200s line %d: "
1977: "AuthorizedPrincipalsCommand must be "
1978: "an absolute path", filename, linenum);
1979: options->authorized_principals_command =
1980: xstrdup(cp + len);
1981: }
1982: return 0;
1983:
1984: case sAuthorizedPrincipalsCommandUser:
1985: charptr = &options->authorized_principals_command_user;
1986:
1987: arg = strdelim(&cp);
1988: if (!arg || *arg == '\0')
1989: fatal("%s line %d: missing "
1990: "AuthorizedPrincipalsCommandUser argument.",
1991: filename, linenum);
1992: if (*activep && *charptr == NULL)
1993: *charptr = xstrdup(arg);
1994: break;
1995:
1.232 djm 1996: case sAuthenticationMethods:
1.268 djm 1997: if (options->num_auth_methods == 0) {
1.291 djm 1998: value = 0; /* seen "any" pseudo-method */
1.328 djm 1999: value2 = 0; /* successfully parsed any method */
1.232 djm 2000: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.291 djm 2001: if (strcmp(arg, "any") == 0) {
2002: if (options->num_auth_methods > 0) {
2003: fatal("%s line %d: \"any\" "
2004: "must appear alone in "
2005: "AuthenticationMethods",
2006: filename, linenum);
2007: }
2008: value = 1;
2009: } else if (value) {
2010: fatal("%s line %d: \"any\" must appear "
2011: "alone in AuthenticationMethods",
2012: filename, linenum);
2013: } else if (auth2_methods_valid(arg, 0) != 0) {
1.232 djm 2014: fatal("%s line %d: invalid "
2015: "authentication method list.",
2016: filename, linenum);
1.291 djm 2017: }
1.292 djm 2018: value2 = 1;
1.268 djm 2019: if (!*activep)
2020: continue;
1.314 djm 2021: array_append(filename, linenum,
2022: "AuthenticationMethods",
2023: &options->auth_methods,
2024: &options->num_auth_methods, arg);
1.232 djm 2025: }
1.292 djm 2026: if (value2 == 0) {
1.291 djm 2027: fatal("%s line %d: no AuthenticationMethods "
2028: "specified", filename, linenum);
2029: }
1.232 djm 2030: }
2031: return 0;
2032:
1.251 millert 2033: case sStreamLocalBindMask:
2034: arg = strdelim(&cp);
2035: if (!arg || *arg == '\0')
1.268 djm 2036: fatal("%s line %d: missing StreamLocalBindMask "
2037: "argument.", filename, linenum);
1.251 millert 2038: /* Parse mode in octal format */
2039: value = strtol(arg, &p, 8);
2040: if (arg == p || value < 0 || value > 0777)
2041: fatal("%s line %d: Bad mask.", filename, linenum);
1.268 djm 2042: if (*activep)
2043: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2044: break;
2045:
2046: case sStreamLocalBindUnlink:
2047: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2048: goto parse_flag;
2049:
1.256 djm 2050: case sFingerprintHash:
2051: arg = strdelim(&cp);
2052: if (!arg || *arg == '\0')
2053: fatal("%.200s line %d: Missing argument.",
2054: filename, linenum);
2055: if ((value = ssh_digest_alg_by_name(arg)) == -1)
2056: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
2057: filename, linenum, arg);
2058: if (*activep)
2059: options->fingerprint_hash = value;
2060: break;
2061:
1.309 djm 2062: case sExposeAuthInfo:
2063: intptr = &options->expose_userauth_info;
2064: goto parse_flag;
2065:
1.316 djm 2066: case sRDomain:
2067: charptr = &options->routing_domain;
2068: arg = strdelim(&cp);
2069: if (!arg || *arg == '\0')
2070: fatal("%.200s line %d: Missing argument.",
2071: filename, linenum);
2072: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2073: !valid_rdomain(arg))
2074: fatal("%s line %d: bad routing domain",
2075: filename, linenum);
2076: if (*activep && *charptr == NULL)
2077: *charptr = xstrdup(arg);
1.321 dtucker 2078: break;
1.316 djm 2079:
1.94 markus 2080: case sDeprecated:
1.295 djm 2081: case sIgnore:
1.121 jakob 2082: case sUnsupported:
1.295 djm 2083: do_log2(opcode == sIgnore ?
2084: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2085: "%s line %d: %s option %s", filename, linenum,
2086: opcode == sUnsupported ? "Unsupported" : "Deprecated", arg);
1.94 markus 2087: while (arg)
2088: arg = strdelim(&cp);
2089: break;
2090:
2091: default:
2092: fatal("%s line %d: Missing handler for opcode %s (%d)",
2093: filename, linenum, arg, opcode);
2094: }
2095: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
2096: fatal("%s line %d: garbage at end of line; \"%.200s\".",
2097: filename, linenum, arg);
2098: return 0;
2099: }
2100:
2101: /* Reads the server configuration file. */
1.25 markus 2102:
1.94 markus 2103: void
1.338 ! markus 2104: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2105: {
1.331 markus 2106: char *line = NULL, *cp;
2107: size_t linesize = 0;
1.94 markus 2108: FILE *f;
1.338 ! markus 2109: int r, lineno = 0;
1.81 stevesk 2110:
1.134 djm 2111: debug2("%s: filename %s", __func__, filename);
2112: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2113: perror(filename);
2114: exit(1);
2115: }
1.338 ! markus 2116: sshbuf_reset(conf);
1.331 markus 2117: while (getline(&line, &linesize, f) != -1) {
1.229 dtucker 2118: lineno++;
1.134 djm 2119: /*
2120: * Trim out comments and strip whitespace
1.135 deraadt 2121: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2122: * line numbers later for error messages
2123: */
2124: if ((cp = strchr(line, '#')) != NULL)
2125: memcpy(cp, "\n", 2);
2126: cp = line + strspn(line, " \t\r");
1.338 ! markus 2127: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
! 2128: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2129: }
1.331 markus 2130: free(line);
1.338 ! markus 2131: if ((r = sshbuf_put_u8(conf, 0)) != 0)
! 2132: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2133: fclose(f);
1.338 ! markus 2134: debug2("%s: done config len = %zu", __func__, sshbuf_len(conf));
1.134 djm 2135: }
2136:
2137: void
1.226 dtucker 2138: parse_server_match_config(ServerOptions *options,
2139: struct connection_info *connectinfo)
1.153 dtucker 2140: {
2141: ServerOptions mo;
2142:
2143: initialize_server_options(&mo);
1.338 ! markus 2144: parse_server_config(&mo, "reprocess config", cfg, connectinfo);
1.168 dtucker 2145: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2146: }
2147:
1.226 dtucker 2148: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2149: {
2150: char *p;
2151:
2152: while ((p = strsep(&spec, ",")) && *p != '\0') {
2153: if (strncmp(p, "addr=", 5) == 0) {
2154: ci->address = xstrdup(p + 5);
2155: } else if (strncmp(p, "host=", 5) == 0) {
2156: ci->host = xstrdup(p + 5);
2157: } else if (strncmp(p, "user=", 5) == 0) {
2158: ci->user = xstrdup(p + 5);
2159: } else if (strncmp(p, "laddr=", 6) == 0) {
2160: ci->laddress = xstrdup(p + 6);
1.317 djm 2161: } else if (strncmp(p, "rdomain=", 8) == 0) {
2162: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2163: } else if (strncmp(p, "lport=", 6) == 0) {
2164: ci->lport = a2port(p + 6);
2165: if (ci->lport == -1) {
2166: fprintf(stderr, "Invalid port '%s' in test mode"
2167: " specification %s\n", p+6, p);
2168: return -1;
2169: }
2170: } else {
2171: fprintf(stderr, "Invalid test mode specification %s\n",
2172: p);
2173: return -1;
2174: }
2175: }
2176: return 0;
2177: }
2178:
1.168 dtucker 2179: /*
2180: * Copy any supported values that are set.
2181: *
1.195 jj 2182: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2183: * array values that are not used pre-authentication, because any that we
1.328 djm 2184: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2185: */
1.153 dtucker 2186: void
1.168 dtucker 2187: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2188: {
1.247 djm 2189: #define M_CP_INTOPT(n) do {\
2190: if (src->n != -1) \
2191: dst->n = src->n; \
2192: } while (0)
2193:
1.168 dtucker 2194: M_CP_INTOPT(password_authentication);
2195: M_CP_INTOPT(gss_authentication);
2196: M_CP_INTOPT(pubkey_authentication);
2197: M_CP_INTOPT(kerberos_authentication);
2198: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2199: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2200: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2201: M_CP_INTOPT(permit_root_login);
1.188 djm 2202: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 2203:
2204: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2205: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2206: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2207: M_CP_INTOPT(disable_forwarding);
1.309 djm 2208: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2209: M_CP_INTOPT(permit_tun);
1.251 millert 2210: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2211: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2212: M_CP_INTOPT(x11_display_offset);
2213: M_CP_INTOPT(x11_forwarding);
2214: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2215: M_CP_INTOPT(permit_tty);
1.250 djm 2216: M_CP_INTOPT(permit_user_rc);
1.180 djm 2217: M_CP_INTOPT(max_sessions);
1.184 dtucker 2218: M_CP_INTOPT(max_authtries);
1.300 markus 2219: M_CP_INTOPT(client_alive_count_max);
2220: M_CP_INTOPT(client_alive_interval);
1.213 djm 2221: M_CP_INTOPT(ip_qos_interactive);
2222: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2223: M_CP_INTOPT(rekey_limit);
2224: M_CP_INTOPT(rekey_interval);
1.308 djm 2225: M_CP_INTOPT(log_level);
1.289 djm 2226:
2227: /*
2228: * The bind_mask is a mode_t that may be unsigned, so we can't use
2229: * M_CP_INTOPT - it does a signed comparison that causes compiler
2230: * warnings.
2231: */
1.290 dtucker 2232: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2233: dst->fwd_opts.streamlocal_bind_mask =
2234: src->fwd_opts.streamlocal_bind_mask;
2235: }
1.247 djm 2236:
2237: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2238: #define M_CP_STROPT(n) do {\
2239: if (src->n != NULL && dst->n != src->n) { \
2240: free(dst->n); \
2241: dst->n = src->n; \
2242: } \
2243: } while(0)
1.314 djm 2244: #define M_CP_STRARRAYOPT(s, num_s) do {\
2245: u_int i; \
2246: if (src->num_s != 0) { \
2247: for (i = 0; i < dst->num_s; i++) \
2248: free(dst->s[i]); \
2249: free(dst->s); \
2250: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2251: for (i = 0; i < src->num_s; i++) \
2252: dst->s[i] = xstrdup(src->s[i]); \
2253: dst->num_s = src->num_s; \
1.312 djm 2254: } \
2255: } while(0)
1.168 dtucker 2256:
1.218 djm 2257: /* See comment in servconf.h */
2258: COPY_MATCH_STRING_OPTS();
1.282 djm 2259:
2260: /* Arguments that accept '+...' need to be expanded */
2261: assemble_algorithms(dst);
1.216 djm 2262:
1.217 dtucker 2263: /*
2264: * The only things that should be below this point are string options
2265: * which are only used after authentication.
2266: */
1.168 dtucker 2267: if (preauth)
2268: return;
1.219 djm 2269:
1.283 djm 2270: /* These options may be "none" to clear a global setting */
1.168 dtucker 2271: M_CP_STROPT(adm_forced_command);
1.283 djm 2272: if (option_clear_or_none(dst->adm_forced_command)) {
2273: free(dst->adm_forced_command);
2274: dst->adm_forced_command = NULL;
2275: }
1.176 djm 2276: M_CP_STROPT(chroot_directory);
1.283 djm 2277: if (option_clear_or_none(dst->chroot_directory)) {
2278: free(dst->chroot_directory);
2279: dst->chroot_directory = NULL;
2280: }
1.153 dtucker 2281: }
1.168 dtucker 2282:
2283: #undef M_CP_INTOPT
2284: #undef M_CP_STROPT
1.219 djm 2285: #undef M_CP_STRARRAYOPT
1.153 dtucker 2286:
2287: void
1.338 ! markus 2288: parse_server_config(ServerOptions *options, const char *filename,
! 2289: struct sshbuf *conf, struct connection_info *connectinfo)
1.134 djm 2290: {
1.153 dtucker 2291: int active, linenum, bad_options = 0;
1.136 dtucker 2292: char *cp, *obuf, *cbuf;
1.134 djm 2293:
1.338 ! markus 2294: debug2("%s: config %s len %zu", __func__, filename, sshbuf_len(conf));
1.134 djm 2295:
1.287 djm 2296: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
2297: fatal("%s: sshbuf_dup_string failed", __func__);
1.226 dtucker 2298: active = connectinfo ? 0 : 1;
1.137 dtucker 2299: linenum = 1;
1.140 deraadt 2300: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 2301: if (process_server_config_line(options, cp, filename,
1.226 dtucker 2302: linenum++, &active, connectinfo) != 0)
1.94 markus 2303: bad_options++;
1.1 deraadt 2304: }
1.239 djm 2305: free(obuf);
1.78 stevesk 2306: if (bad_options > 0)
2307: fatal("%s: terminating, %d bad configuration options",
2308: filename, bad_options);
1.266 dtucker 2309: process_queued_listen_addrs(options);
1.182 dtucker 2310: }
2311:
2312: static const char *
1.221 djm 2313: fmt_multistate_int(int val, const struct multistate *m)
2314: {
2315: u_int i;
2316:
2317: for (i = 0; m[i].key != NULL; i++) {
2318: if (m[i].value == val)
2319: return m[i].key;
2320: }
2321: return "UNKNOWN";
2322: }
2323:
2324: static const char *
1.182 dtucker 2325: fmt_intarg(ServerOpCodes code, int val)
2326: {
1.221 djm 2327: if (val == -1)
2328: return "unset";
2329: switch (code) {
2330: case sAddressFamily:
2331: return fmt_multistate_int(val, multistate_addressfamily);
2332: case sPermitRootLogin:
2333: return fmt_multistate_int(val, multistate_permitrootlogin);
2334: case sGatewayPorts:
2335: return fmt_multistate_int(val, multistate_gatewayports);
2336: case sCompression:
2337: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2338: case sAllowTcpForwarding:
2339: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2340: case sAllowStreamLocalForwarding:
2341: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 2342: case sFingerprintHash:
2343: return ssh_digest_alg_name(val);
1.221 djm 2344: default:
2345: switch (val) {
2346: case 0:
2347: return "no";
2348: case 1:
2349: return "yes";
2350: default:
2351: return "UNKNOWN";
2352: }
1.182 dtucker 2353: }
2354: }
2355:
2356: static void
2357: dump_cfg_int(ServerOpCodes code, int val)
2358: {
2359: printf("%s %d\n", lookup_opcode_name(code), val);
2360: }
2361:
2362: static void
1.263 dtucker 2363: dump_cfg_oct(ServerOpCodes code, int val)
2364: {
2365: printf("%s 0%o\n", lookup_opcode_name(code), val);
2366: }
2367:
2368: static void
1.182 dtucker 2369: dump_cfg_fmtint(ServerOpCodes code, int val)
2370: {
2371: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2372: }
2373:
2374: static void
2375: dump_cfg_string(ServerOpCodes code, const char *val)
2376: {
1.257 djm 2377: printf("%s %s\n", lookup_opcode_name(code),
2378: val == NULL ? "none" : val);
1.182 dtucker 2379: }
2380:
2381: static void
2382: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2383: {
2384: u_int i;
2385:
2386: for (i = 0; i < count; i++)
1.219 djm 2387: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2388: }
2389:
2390: static void
2391: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2392: {
2393: u_int i;
2394:
1.291 djm 2395: if (count <= 0 && code != sAuthenticationMethods)
1.261 dtucker 2396: return;
1.219 djm 2397: printf("%s", lookup_opcode_name(code));
2398: for (i = 0; i < count; i++)
2399: printf(" %s", vals[i]);
1.291 djm 2400: if (code == sAuthenticationMethods && count == 0)
2401: printf(" any");
1.219 djm 2402: printf("\n");
1.182 dtucker 2403: }
2404:
1.315 djm 2405: static char *
2406: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2407: {
1.315 djm 2408: int r;
1.182 dtucker 2409: struct addrinfo *ai;
1.315 djm 2410: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2411: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2412:
1.263 dtucker 2413: /*
2414: * ListenAddress must be after Port. add_one_listen_addr pushes
2415: * addresses onto a stack, so to maintain ordering we need to
2416: * print these in reverse order.
2417: */
1.315 djm 2418: for (ai = la->addrs; ai; ai = ai->ai_next) {
2419: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2420: sizeof(addr), port, sizeof(port),
2421: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2422: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2423: continue;
2424: }
2425: laddr2 = laddr1;
2426: if (ai->ai_family == AF_INET6) {
2427: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2428: addr, port,
2429: la->rdomain == NULL ? "" : " rdomain ",
2430: la->rdomain == NULL ? "" : la->rdomain,
2431: laddr2);
1.182 dtucker 2432: } else {
1.315 djm 2433: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2434: addr, port,
2435: la->rdomain == NULL ? "" : " rdomain ",
2436: la->rdomain == NULL ? "" : la->rdomain,
2437: laddr2);
1.182 dtucker 2438: }
1.315 djm 2439: free(laddr2);
2440: }
2441: return laddr1;
2442: }
2443:
2444: void
2445: dump_config(ServerOptions *o)
2446: {
2447: char *s;
2448: u_int i;
2449:
2450: /* these are usually at the top of the config */
2451: for (i = 0; i < o->num_ports; i++)
2452: printf("port %d\n", o->ports[i]);
2453: dump_cfg_fmtint(sAddressFamily, o->address_family);
2454:
2455: for (i = 0; i < o->num_listen_addrs; i++) {
2456: s = format_listen_addrs(&o->listen_addrs[i]);
2457: printf("%s", s);
2458: free(s);
1.182 dtucker 2459: }
2460:
2461: /* integer arguments */
2462: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2463: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2464: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2465: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2466: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2467: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2468: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2469:
2470: /* formatted integer arguments */
2471: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2472: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2473: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2474: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2475: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2476: o->hostbased_uses_name_from_packet_only);
2477: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2478: #ifdef KRB5
1.182 dtucker 2479: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2480: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2481: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2482: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2483: #endif
2484: #ifdef GSSAPI
1.182 dtucker 2485: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2486: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2487: #endif
1.182 dtucker 2488: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2489: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2490: o->kbd_interactive_authentication);
2491: dump_cfg_fmtint(sChallengeResponseAuthentication,
2492: o->challenge_response_authentication);
2493: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2494: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2495: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2496: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2497: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2498: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2499: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2500: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2501: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2502: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2503: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2504: dump_cfg_fmtint(sUseDNS, o->use_dns);
2505: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2506: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2507: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2508: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2509: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2510: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2511: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2512:
2513: /* string arguments */
2514: dump_cfg_string(sPidFile, o->pid_file);
2515: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2516: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2517: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2518: dump_cfg_string(sBanner, o->banner);
2519: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2520: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2521: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2522: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2523: dump_cfg_string(sAuthorizedPrincipalsFile,
2524: o->authorized_principals_file);
1.261 dtucker 2525: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2526: ? "none" : o->version_addendum);
1.231 djm 2527: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2528: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 2529: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
2530: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 2531: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2532: dump_cfg_string(sKexAlgorithms,
1.253 djm 2533: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.258 djm 2534: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2535: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
1.276 markus 2536: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms ?
2537: o->hostkeyalgorithms : KEX_DEFAULT_PK_ALG);
1.258 djm 2538: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2539: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.316 djm 2540: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 2541:
2542: /* string arguments requiring a lookup */
2543: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2544: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2545:
2546: /* string array arguments */
1.219 djm 2547: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2548: o->authorized_keys_files);
1.182 dtucker 2549: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2550: o->host_key_files);
1.261 dtucker 2551: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2552: o->host_cert_files);
1.182 dtucker 2553: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2554: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2555: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2556: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2557: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 2558: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 2559: dump_cfg_strarray_oneline(sAuthenticationMethods,
2560: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2561:
2562: /* other arguments */
2563: for (i = 0; i < o->num_subsystems; i++)
2564: printf("subsystem %s %s\n", o->subsystem_name[i],
2565: o->subsystem_args[i]);
2566:
2567: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2568: o->max_startups_rate, o->max_startups);
2569:
1.318 djm 2570: s = NULL;
2571: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 2572: if (tunmode_desc[i].val == o->permit_tun) {
2573: s = tunmode_desc[i].text;
2574: break;
2575: }
1.318 djm 2576: }
1.182 dtucker 2577: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2578:
1.214 stevesk 2579: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2580: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2581:
1.284 dtucker 2582: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 2583: o->rekey_interval);
1.182 dtucker 2584:
1.310 djm 2585: printf("permitopen");
2586: if (o->num_permitted_opens == 0)
2587: printf(" any");
2588: else {
2589: for (i = 0; i < o->num_permitted_opens; i++)
2590: printf(" %s", o->permitted_opens[i]);
1.329 djm 2591: }
2592: printf("\n");
1.330 djm 2593: printf("permitlisten");
2594: if (o->num_permitted_listens == 0)
1.329 djm 2595: printf(" any");
2596: else {
1.330 djm 2597: for (i = 0; i < o->num_permitted_listens; i++)
2598: printf(" %s", o->permitted_listens[i]);
1.310 djm 2599: }
2600: printf("\n");
1.334 djm 2601:
2602: if (o->permit_user_env_whitelist == NULL) {
2603: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2604: } else {
2605: printf("permituserenvironment %s\n",
2606: o->permit_user_env_whitelist);
2607: }
2608:
1.1 deraadt 2609: }
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