Annotation of src/usr.bin/ssh/servconf.c, Revision 1.269
1.226 dtucker 1:
1.269 ! djm 2: /* $OpenBSD: servconf.c,v 1.268 2015/05/01 07:08:08 djm Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.154 stevesk 17:
1.213 djm 18: #include <netinet/in.h>
19: #include <netinet/ip.h>
20:
1.235 dtucker 21: #include <ctype.h>
1.154 stevesk 22: #include <netdb.h>
1.165 dtucker 23: #include <pwd.h>
1.162 stevesk 24: #include <stdio.h>
1.161 stevesk 25: #include <stdlib.h>
1.160 stevesk 26: #include <string.h>
1.164 deraadt 27: #include <signal.h>
1.155 stevesk 28: #include <unistd.h>
1.259 deraadt 29: #include <limits.h>
1.164 deraadt 30: #include <stdarg.h>
1.182 dtucker 31: #include <errno.h>
1.236 dtucker 32: #include <util.h>
1.1 deraadt 33:
1.164 deraadt 34: #include "xmalloc.h"
1.1 deraadt 35: #include "ssh.h"
1.62 markus 36: #include "log.h"
1.164 deraadt 37: #include "buffer.h"
1.251 millert 38: #include "misc.h"
1.1 deraadt 39: #include "servconf.h"
1.33 markus 40: #include "compat.h"
1.60 markus 41: #include "pathnames.h"
1.62 markus 42: #include "cipher.h"
1.164 deraadt 43: #include "key.h"
1.66 markus 44: #include "kex.h"
45: #include "mac.h"
1.153 dtucker 46: #include "match.h"
1.156 dtucker 47: #include "channels.h"
1.165 dtucker 48: #include "groupaccess.h"
1.226 dtucker 49: #include "canohost.h"
50: #include "packet.h"
1.232 djm 51: #include "hostfile.h"
52: #include "auth.h"
1.252 djm 53: #include "myproposal.h"
1.256 djm 54: #include "digest.h"
1.1 deraadt 55:
1.194 djm 56: static void add_listen_addr(ServerOptions *, char *, int);
57: static void add_one_listen_addr(ServerOptions *, char *, int);
1.29 markus 58:
1.102 provos 59: /* Use of privilege separation or not */
60: extern int use_privsep;
1.153 dtucker 61: extern Buffer cfg;
1.62 markus 62:
1.1 deraadt 63: /* Initializes the server options to their default values. */
64:
1.34 markus 65: void
1.25 markus 66: initialize_server_options(ServerOptions *options)
1.1 deraadt 67: {
1.25 markus 68: memset(options, 0, sizeof(*options));
1.29 markus 69: options->num_ports = 0;
70: options->ports_from_cmdline = 0;
1.266 dtucker 71: options->queued_listen_addrs = NULL;
72: options->num_queued_listens = 0;
1.29 markus 73: options->listen_addrs = NULL;
1.138 djm 74: options->address_family = -1;
1.54 markus 75: options->num_host_key_files = 0;
1.203 djm 76: options->num_host_cert_files = 0;
1.240 markus 77: options->host_key_agent = NULL;
1.36 markus 78: options->pid_file = NULL;
1.25 markus 79: options->server_key_bits = -1;
80: options->login_grace_time = -1;
81: options->key_regeneration_time = -1;
1.67 markus 82: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 83: options->ignore_rhosts = -1;
84: options->ignore_user_known_hosts = -1;
85: options->print_motd = -1;
1.72 stevesk 86: options->print_lastlog = -1;
1.25 markus 87: options->x11_forwarding = -1;
88: options->x11_display_offset = -1;
1.99 stevesk 89: options->x11_use_localhost = -1;
1.244 djm 90: options->permit_tty = -1;
1.250 djm 91: options->permit_user_rc = -1;
1.42 markus 92: options->xauth_location = NULL;
1.25 markus 93: options->strict_modes = -1;
1.129 markus 94: options->tcp_keep_alive = -1;
1.101 markus 95: options->log_facility = SYSLOG_FACILITY_NOT_SET;
96: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.25 markus 97: options->rhosts_rsa_authentication = -1;
1.75 markus 98: options->hostbased_authentication = -1;
99: options->hostbased_uses_name_from_packet_only = -1;
1.258 djm 100: options->hostbased_key_types = NULL;
1.25 markus 101: options->rsa_authentication = -1;
1.54 markus 102: options->pubkey_authentication = -1;
1.258 djm 103: options->pubkey_key_types = NULL;
1.25 markus 104: options->kerberos_authentication = -1;
105: options->kerberos_or_local_passwd = -1;
106: options->kerberos_ticket_cleanup = -1;
1.130 jakob 107: options->kerberos_get_afs_token = -1;
1.125 markus 108: options->gss_authentication=-1;
109: options->gss_cleanup_creds = -1;
1.25 markus 110: options->password_authentication = -1;
1.52 markus 111: options->kbd_interactive_authentication = -1;
1.80 markus 112: options->challenge_response_authentication = -1;
1.25 markus 113: options->permit_empty_passwd = -1;
1.113 markus 114: options->permit_user_env = -1;
1.25 markus 115: options->use_login = -1;
1.111 markus 116: options->compression = -1;
1.235 dtucker 117: options->rekey_limit = -1;
118: options->rekey_interval = -1;
1.53 markus 119: options->allow_tcp_forwarding = -1;
1.251 millert 120: options->allow_streamlocal_forwarding = -1;
1.178 pyr 121: options->allow_agent_forwarding = -1;
1.25 markus 122: options->num_allow_users = 0;
123: options->num_deny_users = 0;
124: options->num_allow_groups = 0;
125: options->num_deny_groups = 0;
1.33 markus 126: options->ciphers = NULL;
1.66 markus 127: options->macs = NULL;
1.211 djm 128: options->kex_algorithms = NULL;
1.33 markus 129: options->protocol = SSH_PROTO_UNKNOWN;
1.251 millert 130: options->fwd_opts.gateway_ports = -1;
131: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
132: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 133: options->num_subsystems = 0;
1.50 markus 134: options->max_startups_begin = -1;
135: options->max_startups_rate = -1;
1.46 markus 136: options->max_startups = -1;
1.133 dtucker 137: options->max_authtries = -1;
1.180 djm 138: options->max_sessions = -1;
1.57 markus 139: options->banner = NULL;
1.122 markus 140: options->use_dns = -1;
1.77 beck 141: options->client_alive_interval = -1;
142: options->client_alive_count_max = -1;
1.219 djm 143: options->num_authkeys_files = 0;
1.131 djm 144: options->num_accept_env = 0;
1.145 reyk 145: options->permit_tun = -1;
1.159 dtucker 146: options->num_permitted_opens = -1;
1.158 dtucker 147: options->adm_forced_command = NULL;
1.176 djm 148: options->chroot_directory = NULL;
1.231 djm 149: options->authorized_keys_command = NULL;
150: options->authorized_keys_command_user = NULL;
1.204 djm 151: options->revoked_keys_file = NULL;
152: options->trusted_user_ca_keys = NULL;
1.208 djm 153: options->authorized_principals_file = NULL;
1.213 djm 154: options->ip_qos_interactive = -1;
155: options->ip_qos_bulk = -1;
1.225 djm 156: options->version_addendum = NULL;
1.256 djm 157: options->fingerprint_hash = -1;
1.1 deraadt 158: }
159:
1.257 djm 160: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
161: static int
162: option_clear_or_none(const char *o)
163: {
164: return o == NULL || strcasecmp(o, "none") == 0;
165: }
166:
1.34 markus 167: void
1.25 markus 168: fill_default_server_options(ServerOptions *options)
1.1 deraadt 169: {
1.257 djm 170: int i;
171:
1.54 markus 172: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 173: options->protocol = SSH_PROTO_2;
1.54 markus 174: if (options->num_host_key_files == 0) {
175: /* fill default hostkeys for protocols */
176: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 177: options->host_key_files[options->num_host_key_files++] =
178: _PATH_HOST_KEY_FILE;
179: if (options->protocol & SSH_PROTO_2) {
180: options->host_key_files[options->num_host_key_files++] =
181: _PATH_HOST_RSA_KEY_FILE;
182: options->host_key_files[options->num_host_key_files++] =
183: _PATH_HOST_DSA_KEY_FILE;
1.210 naddy 184: options->host_key_files[options->num_host_key_files++] =
185: _PATH_HOST_ECDSA_KEY_FILE;
1.248 markus 186: options->host_key_files[options->num_host_key_files++] =
187: _PATH_HOST_ED25519_KEY_FILE;
1.97 stevesk 188: }
1.54 markus 189: }
1.203 djm 190: /* No certificates by default */
1.29 markus 191: if (options->num_ports == 0)
192: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 193: if (options->address_family == -1)
194: options->address_family = AF_UNSPEC;
1.29 markus 195: if (options->listen_addrs == NULL)
1.76 stevesk 196: add_listen_addr(options, NULL, 0);
1.36 markus 197: if (options->pid_file == NULL)
1.257 djm 198: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.25 markus 199: if (options->server_key_bits == -1)
1.185 djm 200: options->server_key_bits = 1024;
1.25 markus 201: if (options->login_grace_time == -1)
1.115 stevesk 202: options->login_grace_time = 120;
1.25 markus 203: if (options->key_regeneration_time == -1)
204: options->key_regeneration_time = 3600;
1.67 markus 205: if (options->permit_root_login == PERMIT_NOT_SET)
1.265 djm 206: options->permit_root_login = PERMIT_NO;
1.25 markus 207: if (options->ignore_rhosts == -1)
1.30 markus 208: options->ignore_rhosts = 1;
1.25 markus 209: if (options->ignore_user_known_hosts == -1)
210: options->ignore_user_known_hosts = 0;
211: if (options->print_motd == -1)
212: options->print_motd = 1;
1.72 stevesk 213: if (options->print_lastlog == -1)
214: options->print_lastlog = 1;
1.25 markus 215: if (options->x11_forwarding == -1)
1.30 markus 216: options->x11_forwarding = 0;
1.25 markus 217: if (options->x11_display_offset == -1)
1.30 markus 218: options->x11_display_offset = 10;
1.99 stevesk 219: if (options->x11_use_localhost == -1)
220: options->x11_use_localhost = 1;
1.42 markus 221: if (options->xauth_location == NULL)
1.257 djm 222: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 223: if (options->permit_tty == -1)
224: options->permit_tty = 1;
1.250 djm 225: if (options->permit_user_rc == -1)
226: options->permit_user_rc = 1;
1.25 markus 227: if (options->strict_modes == -1)
228: options->strict_modes = 1;
1.129 markus 229: if (options->tcp_keep_alive == -1)
230: options->tcp_keep_alive = 1;
1.101 markus 231: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 232: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 233: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 234: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 235: if (options->rhosts_rsa_authentication == -1)
1.30 markus 236: options->rhosts_rsa_authentication = 0;
1.75 markus 237: if (options->hostbased_authentication == -1)
238: options->hostbased_authentication = 0;
239: if (options->hostbased_uses_name_from_packet_only == -1)
240: options->hostbased_uses_name_from_packet_only = 0;
1.258 djm 241: if (options->hostbased_key_types == NULL)
242: options->hostbased_key_types = xstrdup("*");
1.25 markus 243: if (options->rsa_authentication == -1)
244: options->rsa_authentication = 1;
1.54 markus 245: if (options->pubkey_authentication == -1)
246: options->pubkey_authentication = 1;
1.258 djm 247: if (options->pubkey_key_types == NULL)
248: options->pubkey_key_types = xstrdup("*");
1.25 markus 249: if (options->kerberos_authentication == -1)
1.107 markus 250: options->kerberos_authentication = 0;
1.25 markus 251: if (options->kerberos_or_local_passwd == -1)
252: options->kerberos_or_local_passwd = 1;
253: if (options->kerberos_ticket_cleanup == -1)
254: options->kerberos_ticket_cleanup = 1;
1.130 jakob 255: if (options->kerberos_get_afs_token == -1)
256: options->kerberos_get_afs_token = 0;
1.125 markus 257: if (options->gss_authentication == -1)
258: options->gss_authentication = 0;
259: if (options->gss_cleanup_creds == -1)
260: options->gss_cleanup_creds = 1;
1.25 markus 261: if (options->password_authentication == -1)
262: options->password_authentication = 1;
1.52 markus 263: if (options->kbd_interactive_authentication == -1)
264: options->kbd_interactive_authentication = 0;
1.80 markus 265: if (options->challenge_response_authentication == -1)
266: options->challenge_response_authentication = 1;
1.25 markus 267: if (options->permit_empty_passwd == -1)
1.30 markus 268: options->permit_empty_passwd = 0;
1.113 markus 269: if (options->permit_user_env == -1)
270: options->permit_user_env = 0;
1.25 markus 271: if (options->use_login == -1)
272: options->use_login = 0;
1.111 markus 273: if (options->compression == -1)
1.143 markus 274: options->compression = COMP_DELAYED;
1.235 dtucker 275: if (options->rekey_limit == -1)
276: options->rekey_limit = 0;
277: if (options->rekey_interval == -1)
278: options->rekey_interval = 0;
1.53 markus 279: if (options->allow_tcp_forwarding == -1)
1.233 djm 280: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 281: if (options->allow_streamlocal_forwarding == -1)
282: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 283: if (options->allow_agent_forwarding == -1)
284: options->allow_agent_forwarding = 1;
1.251 millert 285: if (options->fwd_opts.gateway_ports == -1)
286: options->fwd_opts.gateway_ports = 0;
1.46 markus 287: if (options->max_startups == -1)
1.234 dtucker 288: options->max_startups = 100;
1.50 markus 289: if (options->max_startups_rate == -1)
1.234 dtucker 290: options->max_startups_rate = 30; /* 30% */
1.50 markus 291: if (options->max_startups_begin == -1)
1.234 dtucker 292: options->max_startups_begin = 10;
1.133 dtucker 293: if (options->max_authtries == -1)
294: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 295: if (options->max_sessions == -1)
296: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 297: if (options->use_dns == -1)
1.260 deraadt 298: options->use_dns = 0;
1.77 beck 299: if (options->client_alive_interval == -1)
1.95 deraadt 300: options->client_alive_interval = 0;
1.77 beck 301: if (options->client_alive_count_max == -1)
302: options->client_alive_count_max = 3;
1.219 djm 303: if (options->num_authkeys_files == 0) {
304: options->authorized_keys_files[options->num_authkeys_files++] =
305: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS);
306: options->authorized_keys_files[options->num_authkeys_files++] =
307: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS2);
308: }
1.145 reyk 309: if (options->permit_tun == -1)
1.146 reyk 310: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 311: if (options->ip_qos_interactive == -1)
312: options->ip_qos_interactive = IPTOS_LOWDELAY;
313: if (options->ip_qos_bulk == -1)
314: options->ip_qos_bulk = IPTOS_THROUGHPUT;
1.225 djm 315: if (options->version_addendum == NULL)
316: options->version_addendum = xstrdup("");
1.251 millert 317: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
318: options->fwd_opts.streamlocal_bind_mask = 0177;
319: if (options->fwd_opts.streamlocal_bind_unlink == -1)
320: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 321: if (options->fingerprint_hash == -1)
322: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.110 markus 323: /* Turn privilege separation on by default */
1.102 provos 324: if (use_privsep == -1)
1.228 djm 325: use_privsep = PRIVSEP_NOSANDBOX;
1.257 djm 326:
327: #define CLEAR_ON_NONE(v) \
328: do { \
329: if (option_clear_or_none(v)) { \
330: free(v); \
331: v = NULL; \
332: } \
333: } while(0)
334: CLEAR_ON_NONE(options->pid_file);
335: CLEAR_ON_NONE(options->xauth_location);
336: CLEAR_ON_NONE(options->banner);
337: CLEAR_ON_NONE(options->trusted_user_ca_keys);
338: CLEAR_ON_NONE(options->revoked_keys_file);
1.267 djm 339: CLEAR_ON_NONE(options->authorized_principals_file);
1.257 djm 340: for (i = 0; i < options->num_host_key_files; i++)
341: CLEAR_ON_NONE(options->host_key_files[i]);
342: for (i = 0; i < options->num_host_cert_files; i++)
343: CLEAR_ON_NONE(options->host_cert_files[i]);
344: #undef CLEAR_ON_NONE
1.1 deraadt 345: }
346:
347: /* Keyword tokens. */
1.25 markus 348: typedef enum {
349: sBadOption, /* == unknown option */
1.258 djm 350: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime,
351: sKeyRegenerationTime, sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 352: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 353: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 354: sKerberosGetAFSToken,
1.123 markus 355: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 356: sPasswordAuthentication, sKbdInteractiveAuthentication,
357: sListenAddress, sAddressFamily,
1.72 stevesk 358: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 359: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 360: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 361: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.235 dtucker 362: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 363: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.258 djm 364: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
365: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 366: sBanner, sUseDNS, sHostbasedAuthentication,
1.258 djm 367: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
368: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.145 reyk 369: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 370: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 371: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.249 djm 372: sHostCertificate,
1.208 djm 373: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.225 djm 374: sKexAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 375: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 376: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 377: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.256 djm 378: sAllowStreamLocalForwarding, sFingerprintHash,
1.121 jakob 379: sDeprecated, sUnsupported
1.1 deraadt 380: } ServerOpCodes;
381:
1.153 dtucker 382: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
383: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
384: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
385:
1.1 deraadt 386: /* Textual representation of the tokens. */
1.25 markus 387: static struct {
388: const char *name;
389: ServerOpCodes opcode;
1.153 dtucker 390: u_int flags;
1.25 markus 391: } keywords[] = {
1.153 dtucker 392: { "port", sPort, SSHCFG_GLOBAL },
393: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
394: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 395: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 396: { "pidfile", sPidFile, SSHCFG_GLOBAL },
397: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
398: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
399: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 400: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 401: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
402: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
403: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 404: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
405: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 406: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.258 djm 407: { "hostbasedacceptedkeytypes", sHostbasedAcceptedKeyTypes, SSHCFG_ALL },
1.168 dtucker 408: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
409: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.258 djm 410: { "pubkeyacceptedkeytypes", sPubkeyAcceptedKeyTypes, SSHCFG_ALL },
1.153 dtucker 411: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 412: #ifdef KRB5
1.168 dtucker 413: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 414: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
415: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
416: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 417: #else
1.168 dtucker 418: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 419: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
420: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
421: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 422: #endif
1.153 dtucker 423: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
424: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 425: #ifdef GSSAPI
1.168 dtucker 426: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 427: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 428: #else
1.168 dtucker 429: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 430: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 431: #endif
1.168 dtucker 432: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
433: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 434: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 435: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
436: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
437: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
438: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
439: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
440: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
441: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
442: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 443: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
444: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
445: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 446: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
447: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 448: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 449: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
450: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
451: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 452: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 453: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
454: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
455: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 456: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 457: { "allowusers", sAllowUsers, SSHCFG_ALL },
458: { "denyusers", sDenyUsers, SSHCFG_ALL },
459: { "allowgroups", sAllowGroups, SSHCFG_ALL },
460: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 461: { "ciphers", sCiphers, SSHCFG_GLOBAL },
462: { "macs", sMacs, SSHCFG_GLOBAL },
463: { "protocol", sProtocol, SSHCFG_GLOBAL },
464: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
465: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
466: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 467: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 468: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 469: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 470: { "usedns", sUseDNS, SSHCFG_GLOBAL },
471: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
472: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
473: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
474: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
1.209 djm 475: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 476: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.153 dtucker 477: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
1.227 markus 478: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.209 djm 479: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 480: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 481: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 482: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 483: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 484: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 485: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 486: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 487: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
488: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 489: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 490: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.213 djm 491: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 492: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
493: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.225 djm 494: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 495: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 496: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
497: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
498: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 499: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.153 dtucker 500: { NULL, sBadOption, 0 }
1.1 deraadt 501: };
502:
1.182 dtucker 503: static struct {
504: int val;
505: char *text;
506: } tunmode_desc[] = {
507: { SSH_TUNMODE_NO, "no" },
508: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
509: { SSH_TUNMODE_ETHERNET, "ethernet" },
510: { SSH_TUNMODE_YES, "yes" },
511: { -1, NULL }
512: };
513:
1.27 markus 514: /*
1.73 stevesk 515: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 516: */
1.1 deraadt 517:
1.34 markus 518: static ServerOpCodes
1.25 markus 519: parse_token(const char *cp, const char *filename,
1.153 dtucker 520: int linenum, u_int *flags)
1.1 deraadt 521: {
1.55 markus 522: u_int i;
1.1 deraadt 523:
1.25 markus 524: for (i = 0; keywords[i].name; i++)
1.153 dtucker 525: if (strcasecmp(cp, keywords[i].name) == 0) {
526: *flags = keywords[i].flags;
1.25 markus 527: return keywords[i].opcode;
1.153 dtucker 528: }
1.25 markus 529:
1.78 stevesk 530: error("%s: line %d: Bad configuration option: %s",
531: filename, linenum, cp);
1.25 markus 532: return sBadOption;
1.1 deraadt 533: }
534:
1.202 djm 535: char *
536: derelativise_path(const char *path)
537: {
1.259 deraadt 538: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 539:
1.257 djm 540: if (strcasecmp(path, "none") == 0)
541: return xstrdup("none");
1.202 djm 542: expanded = tilde_expand_filename(path, getuid());
543: if (*expanded == '/')
544: return expanded;
1.207 djm 545: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 546: fatal("%s: getcwd: %s", __func__, strerror(errno));
547: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 548: free(expanded);
1.202 djm 549: return ret;
550: }
551:
1.84 itojun 552: static void
1.194 djm 553: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 554: {
1.142 djm 555: u_int i;
1.74 stevesk 556:
1.76 stevesk 557: if (port == 0)
1.74 stevesk 558: for (i = 0; i < options->num_ports; i++)
559: add_one_listen_addr(options, addr, options->ports[i]);
560: else
1.76 stevesk 561: add_one_listen_addr(options, addr, port);
1.74 stevesk 562: }
563:
1.84 itojun 564: static void
1.194 djm 565: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 566: {
567: struct addrinfo hints, *ai, *aitop;
568: char strport[NI_MAXSERV];
569: int gaierr;
570:
1.74 stevesk 571: memset(&hints, 0, sizeof(hints));
1.138 djm 572: hints.ai_family = options->address_family;
1.74 stevesk 573: hints.ai_socktype = SOCK_STREAM;
574: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 575: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 576: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
577: fatal("bad addr or host: %s (%s)",
578: addr ? addr : "<NULL>",
1.173 dtucker 579: ssh_gai_strerror(gaierr));
1.74 stevesk 580: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
581: ;
582: ai->ai_next = options->listen_addrs;
583: options->listen_addrs = aitop;
1.29 markus 584: }
585:
1.266 dtucker 586: /*
587: * Queue a ListenAddress to be processed once we have all of the Ports
588: * and AddressFamily options.
589: */
590: static void
591: queue_listen_addr(ServerOptions *options, char *addr, int port)
592: {
593: options->queued_listen_addrs = xreallocarray(
594: options->queued_listen_addrs, options->num_queued_listens + 1,
595: sizeof(addr));
596: options->queued_listen_ports = xreallocarray(
597: options->queued_listen_ports, options->num_queued_listens + 1,
598: sizeof(port));
599: options->queued_listen_addrs[options->num_queued_listens] =
600: xstrdup(addr);
601: options->queued_listen_ports[options->num_queued_listens] = port;
602: options->num_queued_listens++;
603: }
604:
605: /*
606: * Process queued (text) ListenAddress entries.
607: */
608: static void
609: process_queued_listen_addrs(ServerOptions *options)
610: {
611: u_int i;
612:
613: if (options->num_ports == 0)
614: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
615: if (options->address_family == -1)
616: options->address_family = AF_UNSPEC;
617:
618: for (i = 0; i < options->num_queued_listens; i++) {
619: add_listen_addr(options, options->queued_listen_addrs[i],
620: options->queued_listen_ports[i]);
621: free(options->queued_listen_addrs[i]);
622: options->queued_listen_addrs[i] = NULL;
623: }
624: free(options->queued_listen_addrs);
625: options->queued_listen_addrs = NULL;
626: free(options->queued_listen_ports);
627: options->queued_listen_ports = NULL;
628: options->num_queued_listens = 0;
629: }
630:
1.226 dtucker 631: struct connection_info *
632: get_connection_info(int populate, int use_dns)
633: {
634: static struct connection_info ci;
635:
636: if (!populate)
637: return &ci;
638: ci.host = get_canonical_hostname(use_dns);
639: ci.address = get_remote_ipaddr();
640: ci.laddress = get_local_ipaddr(packet_get_connection_in());
641: ci.lport = get_local_port();
642: return &ci;
643: }
644:
1.153 dtucker 645: /*
646: * The strategy for the Match blocks is that the config file is parsed twice.
647: *
648: * The first time is at startup. activep is initialized to 1 and the
649: * directives in the global context are processed and acted on. Hitting a
650: * Match directive unsets activep and the directives inside the block are
651: * checked for syntax only.
652: *
653: * The second time is after a connection has been established but before
654: * authentication. activep is initialized to 2 and global config directives
655: * are ignored since they have already been processed. If the criteria in a
656: * Match block is met, activep is set and the subsequent directives
657: * processed and actioned until EOF or another Match block unsets it. Any
658: * options set are copied into the main server config.
659: *
660: * Potential additions/improvements:
661: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
662: *
663: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
664: * Match Address 192.168.0.*
665: * Tag trusted
666: * Match Group wheel
667: * Tag trusted
668: * Match Tag trusted
669: * AllowTcpForwarding yes
670: * GatewayPorts clientspecified
671: * [...]
672: *
673: * - Add a PermittedChannelRequests directive
674: * Match Group shell
675: * PermittedChannelRequests session,forwarded-tcpip
676: */
677:
678: static int
1.165 dtucker 679: match_cfg_line_group(const char *grps, int line, const char *user)
680: {
681: int result = 0;
682: struct passwd *pw;
683:
684: if (user == NULL)
685: goto out;
686:
687: if ((pw = getpwnam(user)) == NULL) {
688: debug("Can't match group at line %d because user %.100s does "
689: "not exist", line, user);
690: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
691: debug("Can't Match group because user %.100s not in any group "
692: "at line %d", user, line);
1.186 djm 693: } else if (ga_match_pattern_list(grps) != 1) {
694: debug("user %.100s does not match group list %.100s at line %d",
695: user, grps, line);
1.165 dtucker 696: } else {
1.186 djm 697: debug("user %.100s matched group list %.100s at line %d", user,
698: grps, line);
1.165 dtucker 699: result = 1;
700: }
701: out:
702: ga_free();
703: return result;
704: }
705:
1.226 dtucker 706: /*
1.230 dtucker 707: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 708: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 709: * not match.
1.226 dtucker 710: */
1.165 dtucker 711: static int
1.226 dtucker 712: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 713: {
1.243 dtucker 714: int result = 1, attributes = 0, port;
1.153 dtucker 715: char *arg, *attrib, *cp = *condition;
716:
1.226 dtucker 717: if (ci == NULL)
1.153 dtucker 718: debug3("checking syntax for 'Match %s'", cp);
719: else
1.226 dtucker 720: debug3("checking match for '%s' user %s host %s addr %s "
721: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
722: ci->host ? ci->host : "(null)",
723: ci->address ? ci->address : "(null)",
724: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 725:
726: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 727: attributes++;
728: if (strcasecmp(attrib, "all") == 0) {
729: if (attributes != 1 ||
730: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
731: error("'all' cannot be combined with other "
732: "Match attributes");
733: return -1;
734: }
735: *condition = cp;
736: return 1;
737: }
1.153 dtucker 738: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
739: error("Missing Match criteria for %s", attrib);
740: return -1;
741: }
742: if (strcasecmp(attrib, "user") == 0) {
1.226 dtucker 743: if (ci == NULL || ci->user == NULL) {
1.153 dtucker 744: result = 0;
745: continue;
746: }
1.269 ! djm 747: if (match_pattern_list(ci->user, arg, 0) != 1)
1.153 dtucker 748: result = 0;
749: else
750: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 751: "line %d", ci->user, arg, line);
1.165 dtucker 752: } else if (strcasecmp(attrib, "group") == 0) {
1.226 dtucker 753: if (ci == NULL || ci->user == NULL) {
754: result = 0;
755: continue;
756: }
757: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 758: case -1:
759: return -1;
760: case 0:
761: result = 0;
762: }
1.153 dtucker 763: } else if (strcasecmp(attrib, "host") == 0) {
1.226 dtucker 764: if (ci == NULL || ci->host == NULL) {
1.153 dtucker 765: result = 0;
766: continue;
767: }
1.269 ! djm 768: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 769: result = 0;
770: else
771: debug("connection from %.100s matched 'Host "
1.226 dtucker 772: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 773: } else if (strcasecmp(attrib, "address") == 0) {
1.226 dtucker 774: if (ci == NULL || ci->address == NULL) {
775: result = 0;
776: continue;
777: }
778: switch (addr_match_list(ci->address, arg)) {
1.181 djm 779: case 1:
780: debug("connection from %.100s matched 'Address "
1.226 dtucker 781: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 782: break;
783: case 0:
1.183 djm 784: case -1:
1.153 dtucker 785: result = 0;
1.181 djm 786: break;
1.183 djm 787: case -2:
1.181 djm 788: return -1;
1.153 dtucker 789: }
1.226 dtucker 790: } else if (strcasecmp(attrib, "localaddress") == 0){
791: if (ci == NULL || ci->laddress == NULL) {
792: result = 0;
793: continue;
794: }
795: switch (addr_match_list(ci->laddress, arg)) {
796: case 1:
797: debug("connection from %.100s matched "
798: "'LocalAddress %.100s' at line %d",
799: ci->laddress, arg, line);
800: break;
801: case 0:
802: case -1:
803: result = 0;
804: break;
805: case -2:
806: return -1;
807: }
808: } else if (strcasecmp(attrib, "localport") == 0) {
809: if ((port = a2port(arg)) == -1) {
810: error("Invalid LocalPort '%s' on Match line",
811: arg);
812: return -1;
813: }
814: if (ci == NULL || ci->lport == 0) {
815: result = 0;
816: continue;
817: }
818: /* TODO support port lists */
819: if (port == ci->lport)
820: debug("connection from %.100s matched "
821: "'LocalPort %d' at line %d",
822: ci->laddress, port, line);
823: else
824: result = 0;
1.153 dtucker 825: } else {
826: error("Unsupported Match attribute %s", attrib);
827: return -1;
828: }
1.243 dtucker 829: }
830: if (attributes == 0) {
831: error("One or more attributes required for Match");
832: return -1;
1.153 dtucker 833: }
1.226 dtucker 834: if (ci != NULL)
1.153 dtucker 835: debug3("match %sfound", result ? "" : "not ");
836: *condition = cp;
837: return result;
838: }
839:
1.158 dtucker 840: #define WHITESPACE " \t\r\n"
841:
1.220 djm 842: /* Multistate option parsing */
843: struct multistate {
844: char *key;
845: int value;
846: };
847: static const struct multistate multistate_addressfamily[] = {
848: { "inet", AF_INET },
849: { "inet6", AF_INET6 },
850: { "any", AF_UNSPEC },
851: { NULL, -1 }
852: };
853: static const struct multistate multistate_permitrootlogin[] = {
854: { "without-password", PERMIT_NO_PASSWD },
855: { "forced-commands-only", PERMIT_FORCED_ONLY },
856: { "yes", PERMIT_YES },
857: { "no", PERMIT_NO },
858: { NULL, -1 }
859: };
860: static const struct multistate multistate_compression[] = {
861: { "delayed", COMP_DELAYED },
862: { "yes", COMP_ZLIB },
863: { "no", COMP_NONE },
864: { NULL, -1 }
865: };
866: static const struct multistate multistate_gatewayports[] = {
867: { "clientspecified", 2 },
868: { "yes", 1 },
869: { "no", 0 },
870: { NULL, -1 }
871: };
1.222 djm 872: static const struct multistate multistate_privsep[] = {
1.228 djm 873: { "yes", PRIVSEP_NOSANDBOX },
874: { "sandbox", PRIVSEP_ON },
875: { "nosandbox", PRIVSEP_NOSANDBOX },
1.222 djm 876: { "no", PRIVSEP_OFF },
877: { NULL, -1 }
878: };
1.233 djm 879: static const struct multistate multistate_tcpfwd[] = {
880: { "yes", FORWARD_ALLOW },
881: { "all", FORWARD_ALLOW },
882: { "no", FORWARD_DENY },
883: { "remote", FORWARD_REMOTE },
884: { "local", FORWARD_LOCAL },
885: { NULL, -1 }
886: };
1.220 djm 887:
1.94 markus 888: int
889: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 890: const char *filename, int linenum, int *activep,
891: struct connection_info *connectinfo)
1.1 deraadt 892: {
1.238 dtucker 893: char *cp, **charptr, *arg, *p;
1.237 dtucker 894: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 895: SyslogFacility *log_facility_ptr;
896: LogLevel *log_level_ptr;
1.25 markus 897: ServerOpCodes opcode;
1.153 dtucker 898: u_int i, flags = 0;
1.151 djm 899: size_t len;
1.237 dtucker 900: long long val64;
1.220 djm 901: const struct multistate *multistate_ptr;
1.25 markus 902:
1.94 markus 903: cp = line;
1.148 dtucker 904: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 905: return 0;
1.94 markus 906: /* Ignore leading whitespace */
907: if (*arg == '\0')
908: arg = strdelim(&cp);
909: if (!arg || !*arg || *arg == '#')
910: return 0;
911: intptr = NULL;
912: charptr = NULL;
1.153 dtucker 913: opcode = parse_token(arg, filename, linenum, &flags);
914:
915: if (activep == NULL) { /* We are processing a command line directive */
916: cmdline = 1;
917: activep = &cmdline;
918: }
919: if (*activep && opcode != sMatch)
920: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
921: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 922: if (connectinfo == NULL) {
1.153 dtucker 923: fatal("%s line %d: Directive '%s' is not allowed "
924: "within a Match block", filename, linenum, arg);
925: } else { /* this is a directive we have already processed */
926: while (arg)
927: arg = strdelim(&cp);
928: return 0;
929: }
930: }
931:
1.94 markus 932: switch (opcode) {
933: case sBadOption:
934: return -1;
935: case sPort:
936: /* ignore ports from configfile if cmdline specifies ports */
937: if (options->ports_from_cmdline)
938: return 0;
939: if (options->num_ports >= MAX_PORTS)
940: fatal("%s line %d: too many ports.",
941: filename, linenum);
1.48 provos 942: arg = strdelim(&cp);
1.94 markus 943: if (!arg || *arg == '\0')
944: fatal("%s line %d: missing port number.",
945: filename, linenum);
946: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 947: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 948: fatal("%s line %d: Badly formatted port number.",
949: filename, linenum);
950: break;
1.29 markus 951:
1.94 markus 952: case sServerKeyBits:
953: intptr = &options->server_key_bits;
1.180 djm 954: parse_int:
1.94 markus 955: arg = strdelim(&cp);
956: if (!arg || *arg == '\0')
957: fatal("%s line %d: missing integer value.",
958: filename, linenum);
959: value = atoi(arg);
1.153 dtucker 960: if (*activep && *intptr == -1)
1.94 markus 961: *intptr = value;
962: break;
1.25 markus 963:
1.94 markus 964: case sLoginGraceTime:
965: intptr = &options->login_grace_time;
1.180 djm 966: parse_time:
1.94 markus 967: arg = strdelim(&cp);
968: if (!arg || *arg == '\0')
969: fatal("%s line %d: missing time value.",
970: filename, linenum);
971: if ((value = convtime(arg)) == -1)
972: fatal("%s line %d: invalid time value.",
973: filename, linenum);
1.268 djm 974: if (*activep && *intptr == -1)
1.94 markus 975: *intptr = value;
976: break;
977:
978: case sKeyRegenerationTime:
979: intptr = &options->key_regeneration_time;
980: goto parse_time;
981:
982: case sListenAddress:
983: arg = strdelim(&cp);
1.139 djm 984: if (arg == NULL || *arg == '\0')
985: fatal("%s line %d: missing address",
1.94 markus 986: filename, linenum);
1.144 dtucker 987: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
988: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
989: && strchr(p+1, ':') != NULL) {
1.266 dtucker 990: queue_listen_addr(options, arg, 0);
1.144 dtucker 991: break;
992: }
1.139 djm 993: p = hpdelim(&arg);
994: if (p == NULL)
995: fatal("%s line %d: bad address:port usage",
996: filename, linenum);
997: p = cleanhostname(p);
998: if (arg == NULL)
999: port = 0;
1.194 djm 1000: else if ((port = a2port(arg)) <= 0)
1.139 djm 1001: fatal("%s line %d: bad port number", filename, linenum);
1002:
1.266 dtucker 1003: queue_listen_addr(options, p, port);
1.25 markus 1004:
1.138 djm 1005: break;
1006:
1007: case sAddressFamily:
1.220 djm 1008: intptr = &options->address_family;
1009: multistate_ptr = multistate_addressfamily;
1010: parse_multistate:
1.138 djm 1011: arg = strdelim(&cp);
1.141 markus 1012: if (!arg || *arg == '\0')
1.220 djm 1013: fatal("%s line %d: missing argument.",
1.141 markus 1014: filename, linenum);
1.220 djm 1015: value = -1;
1016: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1017: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1018: value = multistate_ptr[i].value;
1019: break;
1020: }
1021: }
1022: if (value == -1)
1023: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1024: filename, linenum, arg);
1.220 djm 1025: if (*activep && *intptr == -1)
1.138 djm 1026: *intptr = value;
1.94 markus 1027: break;
1028:
1029: case sHostKeyFile:
1030: intptr = &options->num_host_key_files;
1031: if (*intptr >= MAX_HOSTKEYS)
1032: fatal("%s line %d: too many host keys specified (max %d).",
1033: filename, linenum, MAX_HOSTKEYS);
1034: charptr = &options->host_key_files[*intptr];
1.180 djm 1035: parse_filename:
1.94 markus 1036: arg = strdelim(&cp);
1037: if (!arg || *arg == '\0')
1038: fatal("%s line %d: missing file name.",
1039: filename, linenum);
1.153 dtucker 1040: if (*activep && *charptr == NULL) {
1.202 djm 1041: *charptr = derelativise_path(arg);
1.94 markus 1042: /* increase optional counter */
1043: if (intptr != NULL)
1044: *intptr = *intptr + 1;
1045: }
1046: break;
1.76 stevesk 1047:
1.240 markus 1048: case sHostKeyAgent:
1049: charptr = &options->host_key_agent;
1050: arg = strdelim(&cp);
1051: if (!arg || *arg == '\0')
1052: fatal("%s line %d: missing socket name.",
1053: filename, linenum);
1054: if (*activep && *charptr == NULL)
1055: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1056: xstrdup(arg) : derelativise_path(arg);
1057: break;
1058:
1.203 djm 1059: case sHostCertificate:
1060: intptr = &options->num_host_cert_files;
1061: if (*intptr >= MAX_HOSTKEYS)
1062: fatal("%s line %d: too many host certificates "
1063: "specified (max %d).", filename, linenum,
1064: MAX_HOSTCERTS);
1065: charptr = &options->host_cert_files[*intptr];
1066: goto parse_filename;
1067: break;
1068:
1.94 markus 1069: case sPidFile:
1070: charptr = &options->pid_file;
1071: goto parse_filename;
1.25 markus 1072:
1.94 markus 1073: case sPermitRootLogin:
1074: intptr = &options->permit_root_login;
1.220 djm 1075: multistate_ptr = multistate_permitrootlogin;
1076: goto parse_multistate;
1.36 markus 1077:
1.94 markus 1078: case sIgnoreRhosts:
1079: intptr = &options->ignore_rhosts;
1.180 djm 1080: parse_flag:
1.94 markus 1081: arg = strdelim(&cp);
1082: if (!arg || *arg == '\0')
1083: fatal("%s line %d: missing yes/no argument.",
1084: filename, linenum);
1085: value = 0; /* silence compiler */
1086: if (strcmp(arg, "yes") == 0)
1087: value = 1;
1088: else if (strcmp(arg, "no") == 0)
1089: value = 0;
1090: else
1091: fatal("%s line %d: Bad yes/no argument: %s",
1092: filename, linenum, arg);
1.153 dtucker 1093: if (*activep && *intptr == -1)
1.94 markus 1094: *intptr = value;
1095: break;
1096:
1097: case sIgnoreUserKnownHosts:
1098: intptr = &options->ignore_user_known_hosts;
1099: goto parse_flag;
1100:
1101: case sRhostsRSAAuthentication:
1102: intptr = &options->rhosts_rsa_authentication;
1103: goto parse_flag;
1104:
1105: case sHostbasedAuthentication:
1106: intptr = &options->hostbased_authentication;
1107: goto parse_flag;
1108:
1109: case sHostbasedUsesNameFromPacketOnly:
1110: intptr = &options->hostbased_uses_name_from_packet_only;
1111: goto parse_flag;
1112:
1.258 djm 1113: case sHostbasedAcceptedKeyTypes:
1114: charptr = &options->hostbased_key_types;
1115: parse_keytypes:
1116: arg = strdelim(&cp);
1117: if (!arg || *arg == '\0')
1118: fatal("%s line %d: Missing argument.",
1119: filename, linenum);
1120: if (!sshkey_names_valid2(arg, 1))
1121: fatal("%s line %d: Bad key types '%s'.",
1122: filename, linenum, arg ? arg : "<NONE>");
1123: if (*activep && *charptr == NULL)
1124: *charptr = xstrdup(arg);
1125: break;
1126:
1.94 markus 1127: case sRSAAuthentication:
1128: intptr = &options->rsa_authentication;
1129: goto parse_flag;
1130:
1131: case sPubkeyAuthentication:
1132: intptr = &options->pubkey_authentication;
1133: goto parse_flag;
1.119 jakob 1134:
1.258 djm 1135: case sPubkeyAcceptedKeyTypes:
1136: charptr = &options->pubkey_key_types;
1137: goto parse_keytypes;
1138:
1.94 markus 1139: case sKerberosAuthentication:
1140: intptr = &options->kerberos_authentication;
1141: goto parse_flag;
1142:
1143: case sKerberosOrLocalPasswd:
1144: intptr = &options->kerberos_or_local_passwd;
1145: goto parse_flag;
1146:
1147: case sKerberosTicketCleanup:
1148: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1149: goto parse_flag;
1150:
1151: case sKerberosGetAFSToken:
1152: intptr = &options->kerberos_get_afs_token;
1.125 markus 1153: goto parse_flag;
1154:
1155: case sGssAuthentication:
1156: intptr = &options->gss_authentication;
1157: goto parse_flag;
1158:
1159: case sGssCleanupCreds:
1160: intptr = &options->gss_cleanup_creds;
1.94 markus 1161: goto parse_flag;
1162:
1163: case sPasswordAuthentication:
1164: intptr = &options->password_authentication;
1165: goto parse_flag;
1166:
1167: case sKbdInteractiveAuthentication:
1168: intptr = &options->kbd_interactive_authentication;
1169: goto parse_flag;
1170:
1171: case sChallengeResponseAuthentication:
1172: intptr = &options->challenge_response_authentication;
1173: goto parse_flag;
1174:
1175: case sPrintMotd:
1176: intptr = &options->print_motd;
1177: goto parse_flag;
1178:
1179: case sPrintLastLog:
1180: intptr = &options->print_lastlog;
1181: goto parse_flag;
1182:
1183: case sX11Forwarding:
1184: intptr = &options->x11_forwarding;
1185: goto parse_flag;
1186:
1187: case sX11DisplayOffset:
1188: intptr = &options->x11_display_offset;
1189: goto parse_int;
1.99 stevesk 1190:
1191: case sX11UseLocalhost:
1192: intptr = &options->x11_use_localhost;
1193: goto parse_flag;
1.94 markus 1194:
1195: case sXAuthLocation:
1196: charptr = &options->xauth_location;
1197: goto parse_filename;
1198:
1.244 djm 1199: case sPermitTTY:
1200: intptr = &options->permit_tty;
1201: goto parse_flag;
1202:
1.250 djm 1203: case sPermitUserRC:
1204: intptr = &options->permit_user_rc;
1205: goto parse_flag;
1206:
1.94 markus 1207: case sStrictModes:
1208: intptr = &options->strict_modes;
1209: goto parse_flag;
1210:
1.129 markus 1211: case sTCPKeepAlive:
1212: intptr = &options->tcp_keep_alive;
1.94 markus 1213: goto parse_flag;
1214:
1215: case sEmptyPasswd:
1216: intptr = &options->permit_empty_passwd;
1.113 markus 1217: goto parse_flag;
1218:
1219: case sPermitUserEnvironment:
1220: intptr = &options->permit_user_env;
1.94 markus 1221: goto parse_flag;
1222:
1223: case sUseLogin:
1224: intptr = &options->use_login;
1.111 markus 1225: goto parse_flag;
1226:
1227: case sCompression:
1228: intptr = &options->compression;
1.220 djm 1229: multistate_ptr = multistate_compression;
1230: goto parse_multistate;
1.94 markus 1231:
1.235 dtucker 1232: case sRekeyLimit:
1233: arg = strdelim(&cp);
1234: if (!arg || *arg == '\0')
1235: fatal("%.200s line %d: Missing argument.", filename,
1236: linenum);
1237: if (strcmp(arg, "default") == 0) {
1238: val64 = 0;
1239: } else {
1.236 dtucker 1240: if (scan_scaled(arg, &val64) == -1)
1241: fatal("%.200s line %d: Bad number '%s': %s",
1242: filename, linenum, arg, strerror(errno));
1243: /* check for too-large or too-small limits */
1244: if (val64 > UINT_MAX)
1.235 dtucker 1245: fatal("%.200s line %d: RekeyLimit too large",
1246: filename, linenum);
1247: if (val64 != 0 && val64 < 16)
1248: fatal("%.200s line %d: RekeyLimit too small",
1249: filename, linenum);
1250: }
1251: if (*activep && options->rekey_limit == -1)
1252: options->rekey_limit = (u_int32_t)val64;
1253: if (cp != NULL) { /* optional rekey interval present */
1254: if (strcmp(cp, "none") == 0) {
1255: (void)strdelim(&cp); /* discard */
1256: break;
1257: }
1258: intptr = &options->rekey_interval;
1259: goto parse_time;
1260: }
1261: break;
1262:
1.94 markus 1263: case sGatewayPorts:
1.251 millert 1264: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1265: multistate_ptr = multistate_gatewayports;
1266: goto parse_multistate;
1.25 markus 1267:
1.122 markus 1268: case sUseDNS:
1269: intptr = &options->use_dns;
1.94 markus 1270: goto parse_flag;
1.53 markus 1271:
1.94 markus 1272: case sLogFacility:
1.174 dtucker 1273: log_facility_ptr = &options->log_facility;
1.94 markus 1274: arg = strdelim(&cp);
1275: value = log_facility_number(arg);
1.101 markus 1276: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1277: fatal("%.200s line %d: unsupported log facility '%s'",
1278: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1279: if (*log_facility_ptr == -1)
1280: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1281: break;
1.25 markus 1282:
1.94 markus 1283: case sLogLevel:
1.174 dtucker 1284: log_level_ptr = &options->log_level;
1.94 markus 1285: arg = strdelim(&cp);
1286: value = log_level_number(arg);
1.101 markus 1287: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1288: fatal("%.200s line %d: unsupported log level '%s'",
1289: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1290: if (*log_level_ptr == -1)
1291: *log_level_ptr = (LogLevel) value;
1.94 markus 1292: break;
1293:
1294: case sAllowTcpForwarding:
1295: intptr = &options->allow_tcp_forwarding;
1.233 djm 1296: multistate_ptr = multistate_tcpfwd;
1297: goto parse_multistate;
1.102 provos 1298:
1.251 millert 1299: case sAllowStreamLocalForwarding:
1300: intptr = &options->allow_streamlocal_forwarding;
1301: multistate_ptr = multistate_tcpfwd;
1302: goto parse_multistate;
1303:
1.178 pyr 1304: case sAllowAgentForwarding:
1305: intptr = &options->allow_agent_forwarding;
1306: goto parse_flag;
1307:
1.102 provos 1308: case sUsePrivilegeSeparation:
1309: intptr = &use_privsep;
1.222 djm 1310: multistate_ptr = multistate_privsep;
1311: goto parse_multistate;
1.94 markus 1312:
1313: case sAllowUsers:
1314: while ((arg = strdelim(&cp)) && *arg != '\0') {
1315: if (options->num_allow_users >= MAX_ALLOW_USERS)
1316: fatal("%s line %d: too many allow users.",
1317: filename, linenum);
1.227 markus 1318: if (!*activep)
1319: continue;
1.112 deraadt 1320: options->allow_users[options->num_allow_users++] =
1321: xstrdup(arg);
1.94 markus 1322: }
1323: break;
1.25 markus 1324:
1.94 markus 1325: case sDenyUsers:
1326: while ((arg = strdelim(&cp)) && *arg != '\0') {
1327: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1328: fatal("%s line %d: too many deny users.",
1.94 markus 1329: filename, linenum);
1.227 markus 1330: if (!*activep)
1331: continue;
1.112 deraadt 1332: options->deny_users[options->num_deny_users++] =
1333: xstrdup(arg);
1.94 markus 1334: }
1335: break;
1.25 markus 1336:
1.94 markus 1337: case sAllowGroups:
1338: while ((arg = strdelim(&cp)) && *arg != '\0') {
1339: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1340: fatal("%s line %d: too many allow groups.",
1341: filename, linenum);
1.227 markus 1342: if (!*activep)
1343: continue;
1.112 deraadt 1344: options->allow_groups[options->num_allow_groups++] =
1345: xstrdup(arg);
1.94 markus 1346: }
1347: break;
1.33 markus 1348:
1.94 markus 1349: case sDenyGroups:
1350: while ((arg = strdelim(&cp)) && *arg != '\0') {
1351: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1352: fatal("%s line %d: too many deny groups.",
1353: filename, linenum);
1.227 markus 1354: if (!*activep)
1355: continue;
1356: options->deny_groups[options->num_deny_groups++] =
1357: xstrdup(arg);
1.94 markus 1358: }
1359: break;
1.66 markus 1360:
1.94 markus 1361: case sCiphers:
1362: arg = strdelim(&cp);
1363: if (!arg || *arg == '\0')
1364: fatal("%s line %d: Missing argument.", filename, linenum);
1365: if (!ciphers_valid(arg))
1366: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1367: filename, linenum, arg ? arg : "<NONE>");
1368: if (options->ciphers == NULL)
1369: options->ciphers = xstrdup(arg);
1370: break;
1.33 markus 1371:
1.94 markus 1372: case sMacs:
1373: arg = strdelim(&cp);
1374: if (!arg || *arg == '\0')
1375: fatal("%s line %d: Missing argument.", filename, linenum);
1376: if (!mac_valid(arg))
1377: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1378: filename, linenum, arg ? arg : "<NONE>");
1379: if (options->macs == NULL)
1380: options->macs = xstrdup(arg);
1.211 djm 1381: break;
1382:
1383: case sKexAlgorithms:
1384: arg = strdelim(&cp);
1385: if (!arg || *arg == '\0')
1386: fatal("%s line %d: Missing argument.",
1387: filename, linenum);
1388: if (!kex_names_valid(arg))
1389: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1390: filename, linenum, arg ? arg : "<NONE>");
1391: if (options->kex_algorithms == NULL)
1392: options->kex_algorithms = xstrdup(arg);
1.94 markus 1393: break;
1.43 jakob 1394:
1.94 markus 1395: case sProtocol:
1396: intptr = &options->protocol;
1397: arg = strdelim(&cp);
1398: if (!arg || *arg == '\0')
1399: fatal("%s line %d: Missing argument.", filename, linenum);
1400: value = proto_spec(arg);
1401: if (value == SSH_PROTO_UNKNOWN)
1402: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1403: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1404: if (*intptr == SSH_PROTO_UNKNOWN)
1405: *intptr = value;
1406: break;
1407:
1408: case sSubsystem:
1409: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1410: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1411: filename, linenum);
1.94 markus 1412: }
1413: arg = strdelim(&cp);
1414: if (!arg || *arg == '\0')
1415: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1416: filename, linenum);
1.153 dtucker 1417: if (!*activep) {
1418: arg = strdelim(&cp);
1419: break;
1420: }
1.94 markus 1421: for (i = 0; i < options->num_subsystems; i++)
1422: if (strcmp(arg, options->subsystem_name[i]) == 0)
1423: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1424: filename, linenum, arg);
1.94 markus 1425: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1426: arg = strdelim(&cp);
1427: if (!arg || *arg == '\0')
1428: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1429: filename, linenum);
1.94 markus 1430: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1431:
1432: /* Collect arguments (separate to executable) */
1433: p = xstrdup(arg);
1434: len = strlen(p) + 1;
1435: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1436: len += 1 + strlen(arg);
1.264 deraadt 1437: p = xreallocarray(p, 1, len);
1.151 djm 1438: strlcat(p, " ", len);
1439: strlcat(p, arg, len);
1440: }
1441: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1442: options->num_subsystems++;
1443: break;
1.46 markus 1444:
1.94 markus 1445: case sMaxStartups:
1446: arg = strdelim(&cp);
1447: if (!arg || *arg == '\0')
1448: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1449: filename, linenum);
1.94 markus 1450: if ((n = sscanf(arg, "%d:%d:%d",
1451: &options->max_startups_begin,
1452: &options->max_startups_rate,
1453: &options->max_startups)) == 3) {
1454: if (options->max_startups_begin >
1455: options->max_startups ||
1456: options->max_startups_rate > 100 ||
1457: options->max_startups_rate < 1)
1.50 markus 1458: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1459: filename, linenum);
1.94 markus 1460: } else if (n != 1)
1461: fatal("%s line %d: Illegal MaxStartups spec.",
1462: filename, linenum);
1463: else
1464: options->max_startups = options->max_startups_begin;
1465: break;
1.133 dtucker 1466:
1467: case sMaxAuthTries:
1468: intptr = &options->max_authtries;
1469: goto parse_int;
1.94 markus 1470:
1.180 djm 1471: case sMaxSessions:
1472: intptr = &options->max_sessions;
1473: goto parse_int;
1474:
1.94 markus 1475: case sBanner:
1476: charptr = &options->banner;
1477: goto parse_filename;
1.176 djm 1478:
1.94 markus 1479: /*
1480: * These options can contain %X options expanded at
1481: * connect time, so that you can specify paths like:
1482: *
1483: * AuthorizedKeysFile /etc/ssh_keys/%u
1484: */
1485: case sAuthorizedKeysFile:
1.219 djm 1486: if (*activep && options->num_authkeys_files == 0) {
1487: while ((arg = strdelim(&cp)) && *arg != '\0') {
1488: if (options->num_authkeys_files >=
1489: MAX_AUTHKEYS_FILES)
1490: fatal("%s line %d: "
1491: "too many authorized keys files.",
1492: filename, linenum);
1493: options->authorized_keys_files[
1494: options->num_authkeys_files++] =
1495: tilde_expand_filename(arg, getuid());
1496: }
1497: }
1498: return 0;
1499:
1.208 djm 1500: case sAuthorizedPrincipalsFile:
1501: charptr = &options->authorized_principals_file;
1.205 djm 1502: arg = strdelim(&cp);
1503: if (!arg || *arg == '\0')
1504: fatal("%s line %d: missing file name.",
1505: filename, linenum);
1506: if (*activep && *charptr == NULL) {
1.206 markus 1507: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1508: /* increase optional counter */
1509: if (intptr != NULL)
1510: *intptr = *intptr + 1;
1511: }
1512: break;
1.94 markus 1513:
1514: case sClientAliveInterval:
1515: intptr = &options->client_alive_interval;
1516: goto parse_time;
1517:
1518: case sClientAliveCountMax:
1519: intptr = &options->client_alive_count_max;
1520: goto parse_int;
1.131 djm 1521:
1522: case sAcceptEnv:
1523: while ((arg = strdelim(&cp)) && *arg != '\0') {
1524: if (strchr(arg, '=') != NULL)
1525: fatal("%s line %d: Invalid environment name.",
1526: filename, linenum);
1527: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1528: fatal("%s line %d: too many allow env.",
1529: filename, linenum);
1.153 dtucker 1530: if (!*activep)
1.227 markus 1531: continue;
1.131 djm 1532: options->accept_env[options->num_accept_env++] =
1533: xstrdup(arg);
1534: }
1535: break;
1.145 reyk 1536:
1537: case sPermitTunnel:
1538: intptr = &options->permit_tun;
1.146 reyk 1539: arg = strdelim(&cp);
1540: if (!arg || *arg == '\0')
1541: fatal("%s line %d: Missing yes/point-to-point/"
1542: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1543: value = -1;
1544: for (i = 0; tunmode_desc[i].val != -1; i++)
1545: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1546: value = tunmode_desc[i].val;
1547: break;
1548: }
1549: if (value == -1)
1.146 reyk 1550: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1551: "no argument: %s", filename, linenum, arg);
1.268 djm 1552: if (*activep && *intptr == -1)
1.146 reyk 1553: *intptr = value;
1554: break;
1.94 markus 1555:
1.153 dtucker 1556: case sMatch:
1557: if (cmdline)
1558: fatal("Match directive not supported as a command-line "
1559: "option");
1.226 dtucker 1560: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1561: if (value < 0)
1562: fatal("%s line %d: Bad Match condition", filename,
1563: linenum);
1564: *activep = value;
1.156 dtucker 1565: break;
1566:
1567: case sPermitOpen:
1568: arg = strdelim(&cp);
1569: if (!arg || *arg == '\0')
1570: fatal("%s line %d: missing PermitOpen specification",
1571: filename, linenum);
1.167 dtucker 1572: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1573: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1574: if (*activep && n == -1) {
1.156 dtucker 1575: channel_clear_adm_permitted_opens();
1.159 dtucker 1576: options->num_permitted_opens = 0;
1.224 dtucker 1577: }
1578: break;
1579: }
1580: if (strcmp(arg, "none") == 0) {
1581: if (*activep && n == -1) {
1582: options->num_permitted_opens = 1;
1583: channel_disable_adm_local_opens();
1.159 dtucker 1584: }
1.156 dtucker 1585: break;
1586: }
1.166 dtucker 1587: if (*activep && n == -1)
1588: channel_clear_adm_permitted_opens();
1.159 dtucker 1589: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1590: p = hpdelim(&arg);
1591: if (p == NULL)
1592: fatal("%s line %d: missing host in PermitOpen",
1593: filename, linenum);
1594: p = cleanhostname(p);
1.223 dtucker 1595: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.159 dtucker 1596: fatal("%s line %d: bad port number in "
1597: "PermitOpen", filename, linenum);
1.166 dtucker 1598: if (*activep && n == -1)
1.159 dtucker 1599: options->num_permitted_opens =
1600: channel_add_adm_permitted_opens(p, port);
1601: }
1.153 dtucker 1602: break;
1603:
1.158 dtucker 1604: case sForceCommand:
1.262 dtucker 1605: if (cp == NULL || *cp == '\0')
1.158 dtucker 1606: fatal("%.200s line %d: Missing argument.", filename,
1607: linenum);
1608: len = strspn(cp, WHITESPACE);
1609: if (*activep && options->adm_forced_command == NULL)
1610: options->adm_forced_command = xstrdup(cp + len);
1611: return 0;
1612:
1.176 djm 1613: case sChrootDirectory:
1614: charptr = &options->chroot_directory;
1.177 djm 1615:
1616: arg = strdelim(&cp);
1617: if (!arg || *arg == '\0')
1618: fatal("%s line %d: missing file name.",
1619: filename, linenum);
1620: if (*activep && *charptr == NULL)
1621: *charptr = xstrdup(arg);
1622: break;
1.176 djm 1623:
1.204 djm 1624: case sTrustedUserCAKeys:
1625: charptr = &options->trusted_user_ca_keys;
1626: goto parse_filename;
1627:
1628: case sRevokedKeys:
1629: charptr = &options->revoked_keys_file;
1630: goto parse_filename;
1631:
1.213 djm 1632: case sIPQoS:
1633: arg = strdelim(&cp);
1634: if ((value = parse_ipqos(arg)) == -1)
1635: fatal("%s line %d: Bad IPQoS value: %s",
1636: filename, linenum, arg);
1637: arg = strdelim(&cp);
1638: if (arg == NULL)
1639: value2 = value;
1640: else if ((value2 = parse_ipqos(arg)) == -1)
1641: fatal("%s line %d: Bad IPQoS value: %s",
1642: filename, linenum, arg);
1643: if (*activep) {
1644: options->ip_qos_interactive = value;
1645: options->ip_qos_bulk = value2;
1646: }
1647: break;
1648:
1.225 djm 1649: case sVersionAddendum:
1.262 dtucker 1650: if (cp == NULL || *cp == '\0')
1.225 djm 1651: fatal("%.200s line %d: Missing argument.", filename,
1652: linenum);
1653: len = strspn(cp, WHITESPACE);
1654: if (*activep && options->version_addendum == NULL) {
1655: if (strcasecmp(cp + len, "none") == 0)
1656: options->version_addendum = xstrdup("");
1657: else if (strchr(cp + len, '\r') != NULL)
1658: fatal("%.200s line %d: Invalid argument",
1659: filename, linenum);
1660: else
1661: options->version_addendum = xstrdup(cp + len);
1662: }
1663: return 0;
1664:
1.231 djm 1665: case sAuthorizedKeysCommand:
1.255 jsg 1666: if (cp == NULL)
1667: fatal("%.200s line %d: Missing argument.", filename,
1668: linenum);
1.231 djm 1669: len = strspn(cp, WHITESPACE);
1670: if (*activep && options->authorized_keys_command == NULL) {
1671: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1672: fatal("%.200s line %d: AuthorizedKeysCommand "
1673: "must be an absolute path",
1674: filename, linenum);
1675: options->authorized_keys_command = xstrdup(cp + len);
1676: }
1677: return 0;
1678:
1679: case sAuthorizedKeysCommandUser:
1680: charptr = &options->authorized_keys_command_user;
1681:
1682: arg = strdelim(&cp);
1.255 jsg 1683: if (!arg || *arg == '\0')
1684: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1685: "argument.", filename, linenum);
1.231 djm 1686: if (*activep && *charptr == NULL)
1687: *charptr = xstrdup(arg);
1688: break;
1689:
1.232 djm 1690: case sAuthenticationMethods:
1.268 djm 1691: if (options->num_auth_methods == 0) {
1.232 djm 1692: while ((arg = strdelim(&cp)) && *arg != '\0') {
1693: if (options->num_auth_methods >=
1694: MAX_AUTH_METHODS)
1695: fatal("%s line %d: "
1696: "too many authentication methods.",
1697: filename, linenum);
1698: if (auth2_methods_valid(arg, 0) != 0)
1699: fatal("%s line %d: invalid "
1700: "authentication method list.",
1701: filename, linenum);
1.268 djm 1702: if (!*activep)
1703: continue;
1.232 djm 1704: options->auth_methods[
1705: options->num_auth_methods++] = xstrdup(arg);
1706: }
1707: }
1708: return 0;
1709:
1.251 millert 1710: case sStreamLocalBindMask:
1711: arg = strdelim(&cp);
1712: if (!arg || *arg == '\0')
1.268 djm 1713: fatal("%s line %d: missing StreamLocalBindMask "
1714: "argument.", filename, linenum);
1.251 millert 1715: /* Parse mode in octal format */
1716: value = strtol(arg, &p, 8);
1717: if (arg == p || value < 0 || value > 0777)
1718: fatal("%s line %d: Bad mask.", filename, linenum);
1.268 djm 1719: if (*activep)
1720: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 1721: break;
1722:
1723: case sStreamLocalBindUnlink:
1724: intptr = &options->fwd_opts.streamlocal_bind_unlink;
1725: goto parse_flag;
1726:
1.256 djm 1727: case sFingerprintHash:
1728: arg = strdelim(&cp);
1729: if (!arg || *arg == '\0')
1730: fatal("%.200s line %d: Missing argument.",
1731: filename, linenum);
1732: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1733: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
1734: filename, linenum, arg);
1735: if (*activep)
1736: options->fingerprint_hash = value;
1737: break;
1738:
1.94 markus 1739: case sDeprecated:
1.117 itojun 1740: logit("%s line %d: Deprecated option %s",
1.121 jakob 1741: filename, linenum, arg);
1742: while (arg)
1743: arg = strdelim(&cp);
1744: break;
1745:
1746: case sUnsupported:
1747: logit("%s line %d: Unsupported option %s",
1.94 markus 1748: filename, linenum, arg);
1749: while (arg)
1750: arg = strdelim(&cp);
1751: break;
1752:
1753: default:
1754: fatal("%s line %d: Missing handler for opcode %s (%d)",
1755: filename, linenum, arg, opcode);
1756: }
1757: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1758: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1759: filename, linenum, arg);
1760: return 0;
1761: }
1762:
1763: /* Reads the server configuration file. */
1.25 markus 1764:
1.94 markus 1765: void
1.134 djm 1766: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1767: {
1.229 dtucker 1768: char line[4096], *cp;
1.94 markus 1769: FILE *f;
1.229 dtucker 1770: int lineno = 0;
1.81 stevesk 1771:
1.134 djm 1772: debug2("%s: filename %s", __func__, filename);
1773: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1774: perror(filename);
1775: exit(1);
1776: }
1.134 djm 1777: buffer_clear(conf);
1778: while (fgets(line, sizeof(line), f)) {
1.229 dtucker 1779: lineno++;
1780: if (strlen(line) == sizeof(line) - 1)
1781: fatal("%s line %d too long", filename, lineno);
1.134 djm 1782: /*
1783: * Trim out comments and strip whitespace
1.135 deraadt 1784: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1785: * line numbers later for error messages
1786: */
1787: if ((cp = strchr(line, '#')) != NULL)
1788: memcpy(cp, "\n", 2);
1789: cp = line + strspn(line, " \t\r");
1790:
1791: buffer_append(conf, cp, strlen(cp));
1792: }
1793: buffer_append(conf, "\0", 1);
1794: fclose(f);
1795: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1796: }
1797:
1798: void
1.226 dtucker 1799: parse_server_match_config(ServerOptions *options,
1800: struct connection_info *connectinfo)
1.153 dtucker 1801: {
1802: ServerOptions mo;
1803:
1804: initialize_server_options(&mo);
1.226 dtucker 1805: parse_server_config(&mo, "reprocess config", &cfg, connectinfo);
1.168 dtucker 1806: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1807: }
1808:
1.226 dtucker 1809: int parse_server_match_testspec(struct connection_info *ci, char *spec)
1810: {
1811: char *p;
1812:
1813: while ((p = strsep(&spec, ",")) && *p != '\0') {
1814: if (strncmp(p, "addr=", 5) == 0) {
1815: ci->address = xstrdup(p + 5);
1816: } else if (strncmp(p, "host=", 5) == 0) {
1817: ci->host = xstrdup(p + 5);
1818: } else if (strncmp(p, "user=", 5) == 0) {
1819: ci->user = xstrdup(p + 5);
1820: } else if (strncmp(p, "laddr=", 6) == 0) {
1821: ci->laddress = xstrdup(p + 6);
1822: } else if (strncmp(p, "lport=", 6) == 0) {
1823: ci->lport = a2port(p + 6);
1824: if (ci->lport == -1) {
1825: fprintf(stderr, "Invalid port '%s' in test mode"
1826: " specification %s\n", p+6, p);
1827: return -1;
1828: }
1829: } else {
1830: fprintf(stderr, "Invalid test mode specification %s\n",
1831: p);
1832: return -1;
1833: }
1834: }
1835: return 0;
1836: }
1837:
1838: /*
1839: * returns 1 for a complete spec, 0 for partial spec and -1 for an
1840: * empty spec.
1841: */
1842: int server_match_spec_complete(struct connection_info *ci)
1843: {
1844: if (ci->user && ci->host && ci->address)
1845: return 1; /* complete */
1846: if (!ci->user && !ci->host && !ci->address)
1847: return -1; /* empty */
1848: return 0; /* partial */
1849: }
1850:
1.168 dtucker 1851: /*
1852: * Copy any supported values that are set.
1853: *
1.195 jj 1854: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1855: * array values that are not used pre-authentication, because any that we
1856: * do use must be explictly sent in mm_getpwnamallow().
1857: */
1.153 dtucker 1858: void
1.168 dtucker 1859: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1860: {
1.247 djm 1861: #define M_CP_INTOPT(n) do {\
1862: if (src->n != -1) \
1863: dst->n = src->n; \
1864: } while (0)
1865:
1.168 dtucker 1866: M_CP_INTOPT(password_authentication);
1867: M_CP_INTOPT(gss_authentication);
1868: M_CP_INTOPT(rsa_authentication);
1869: M_CP_INTOPT(pubkey_authentication);
1870: M_CP_INTOPT(kerberos_authentication);
1871: M_CP_INTOPT(hostbased_authentication);
1.209 djm 1872: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 1873: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 1874: M_CP_INTOPT(permit_root_login);
1.188 djm 1875: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1876:
1877: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 1878: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 1879: M_CP_INTOPT(allow_agent_forwarding);
1.209 djm 1880: M_CP_INTOPT(permit_tun);
1.251 millert 1881: M_CP_INTOPT(fwd_opts.gateway_ports);
1.168 dtucker 1882: M_CP_INTOPT(x11_display_offset);
1883: M_CP_INTOPT(x11_forwarding);
1884: M_CP_INTOPT(x11_use_localhost);
1.244 djm 1885: M_CP_INTOPT(permit_tty);
1.250 djm 1886: M_CP_INTOPT(permit_user_rc);
1.180 djm 1887: M_CP_INTOPT(max_sessions);
1.184 dtucker 1888: M_CP_INTOPT(max_authtries);
1.213 djm 1889: M_CP_INTOPT(ip_qos_interactive);
1890: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 1891: M_CP_INTOPT(rekey_limit);
1892: M_CP_INTOPT(rekey_interval);
1.247 djm 1893:
1894: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
1895: #define M_CP_STROPT(n) do {\
1896: if (src->n != NULL && dst->n != src->n) { \
1897: free(dst->n); \
1898: dst->n = src->n; \
1899: } \
1900: } while(0)
1901: #define M_CP_STRARRAYOPT(n, num_n) do {\
1902: if (src->num_n != 0) { \
1903: for (dst->num_n = 0; dst->num_n < src->num_n; dst->num_n++) \
1904: dst->n[dst->num_n] = xstrdup(src->n[dst->num_n]); \
1905: } \
1906: } while(0)
1.168 dtucker 1907:
1.218 djm 1908: /* See comment in servconf.h */
1909: COPY_MATCH_STRING_OPTS();
1.216 djm 1910:
1.217 dtucker 1911: /*
1912: * The only things that should be below this point are string options
1913: * which are only used after authentication.
1914: */
1.168 dtucker 1915: if (preauth)
1916: return;
1.219 djm 1917:
1.168 dtucker 1918: M_CP_STROPT(adm_forced_command);
1.176 djm 1919: M_CP_STROPT(chroot_directory);
1.153 dtucker 1920: }
1.168 dtucker 1921:
1922: #undef M_CP_INTOPT
1923: #undef M_CP_STROPT
1.219 djm 1924: #undef M_CP_STRARRAYOPT
1.153 dtucker 1925:
1926: void
1927: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1.226 dtucker 1928: struct connection_info *connectinfo)
1.134 djm 1929: {
1.153 dtucker 1930: int active, linenum, bad_options = 0;
1.136 dtucker 1931: char *cp, *obuf, *cbuf;
1.134 djm 1932:
1933: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1934:
1.136 dtucker 1935: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.226 dtucker 1936: active = connectinfo ? 0 : 1;
1.137 dtucker 1937: linenum = 1;
1.140 deraadt 1938: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1939: if (process_server_config_line(options, cp, filename,
1.226 dtucker 1940: linenum++, &active, connectinfo) != 0)
1.94 markus 1941: bad_options++;
1.1 deraadt 1942: }
1.239 djm 1943: free(obuf);
1.78 stevesk 1944: if (bad_options > 0)
1945: fatal("%s: terminating, %d bad configuration options",
1946: filename, bad_options);
1.266 dtucker 1947: process_queued_listen_addrs(options);
1.182 dtucker 1948: }
1949:
1950: static const char *
1.221 djm 1951: fmt_multistate_int(int val, const struct multistate *m)
1952: {
1953: u_int i;
1954:
1955: for (i = 0; m[i].key != NULL; i++) {
1956: if (m[i].value == val)
1957: return m[i].key;
1958: }
1959: return "UNKNOWN";
1960: }
1961:
1962: static const char *
1.182 dtucker 1963: fmt_intarg(ServerOpCodes code, int val)
1964: {
1.221 djm 1965: if (val == -1)
1966: return "unset";
1967: switch (code) {
1968: case sAddressFamily:
1969: return fmt_multistate_int(val, multistate_addressfamily);
1970: case sPermitRootLogin:
1971: return fmt_multistate_int(val, multistate_permitrootlogin);
1972: case sGatewayPorts:
1973: return fmt_multistate_int(val, multistate_gatewayports);
1974: case sCompression:
1975: return fmt_multistate_int(val, multistate_compression);
1.222 djm 1976: case sUsePrivilegeSeparation:
1977: return fmt_multistate_int(val, multistate_privsep);
1.233 djm 1978: case sAllowTcpForwarding:
1979: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 1980: case sAllowStreamLocalForwarding:
1981: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 1982: case sFingerprintHash:
1983: return ssh_digest_alg_name(val);
1.221 djm 1984: case sProtocol:
1.182 dtucker 1985: switch (val) {
1986: case SSH_PROTO_1:
1987: return "1";
1988: case SSH_PROTO_2:
1989: return "2";
1990: case (SSH_PROTO_1|SSH_PROTO_2):
1991: return "2,1";
1992: default:
1993: return "UNKNOWN";
1994: }
1.221 djm 1995: default:
1996: switch (val) {
1997: case 0:
1998: return "no";
1999: case 1:
2000: return "yes";
2001: default:
2002: return "UNKNOWN";
2003: }
1.182 dtucker 2004: }
2005: }
2006:
2007: static const char *
2008: lookup_opcode_name(ServerOpCodes code)
2009: {
2010: u_int i;
2011:
2012: for (i = 0; keywords[i].name != NULL; i++)
2013: if (keywords[i].opcode == code)
2014: return(keywords[i].name);
2015: return "UNKNOWN";
2016: }
2017:
2018: static void
2019: dump_cfg_int(ServerOpCodes code, int val)
2020: {
2021: printf("%s %d\n", lookup_opcode_name(code), val);
2022: }
2023:
2024: static void
1.263 dtucker 2025: dump_cfg_oct(ServerOpCodes code, int val)
2026: {
2027: printf("%s 0%o\n", lookup_opcode_name(code), val);
2028: }
2029:
2030: static void
1.182 dtucker 2031: dump_cfg_fmtint(ServerOpCodes code, int val)
2032: {
2033: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2034: }
2035:
2036: static void
2037: dump_cfg_string(ServerOpCodes code, const char *val)
2038: {
2039: if (val == NULL)
2040: return;
1.257 djm 2041: printf("%s %s\n", lookup_opcode_name(code),
2042: val == NULL ? "none" : val);
1.182 dtucker 2043: }
2044:
2045: static void
2046: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2047: {
2048: u_int i;
2049:
2050: for (i = 0; i < count; i++)
1.219 djm 2051: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2052: }
2053:
2054: static void
2055: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2056: {
2057: u_int i;
2058:
1.261 dtucker 2059: if (count <= 0)
2060: return;
1.219 djm 2061: printf("%s", lookup_opcode_name(code));
2062: for (i = 0; i < count; i++)
2063: printf(" %s", vals[i]);
2064: printf("\n");
1.182 dtucker 2065: }
2066:
2067: void
2068: dump_config(ServerOptions *o)
2069: {
2070: u_int i;
2071: int ret;
2072: struct addrinfo *ai;
2073: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1.263 dtucker 2074: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2075:
2076: /* these are usually at the top of the config */
2077: for (i = 0; i < o->num_ports; i++)
2078: printf("port %d\n", o->ports[i]);
2079: dump_cfg_fmtint(sProtocol, o->protocol);
2080: dump_cfg_fmtint(sAddressFamily, o->address_family);
2081:
1.263 dtucker 2082: /*
2083: * ListenAddress must be after Port. add_one_listen_addr pushes
2084: * addresses onto a stack, so to maintain ordering we need to
2085: * print these in reverse order.
2086: */
1.182 dtucker 2087: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
2088: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
2089: sizeof(addr), port, sizeof(port),
2090: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
2091: error("getnameinfo failed: %.100s",
2092: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
2093: strerror(errno));
2094: } else {
1.263 dtucker 2095: laddr2 = laddr1;
1.182 dtucker 2096: if (ai->ai_family == AF_INET6)
1.263 dtucker 2097: xasprintf(&laddr1, "listenaddress [%s]:%s\n%s",
2098: addr, port, laddr2);
1.182 dtucker 2099: else
1.263 dtucker 2100: xasprintf(&laddr1, "listenaddress %s:%s\n%s",
2101: addr, port, laddr2);
2102: free(laddr2);
1.182 dtucker 2103: }
2104: }
1.263 dtucker 2105: printf("%s", laddr1);
2106: free(laddr1);
1.182 dtucker 2107:
2108: /* integer arguments */
2109: dump_cfg_int(sServerKeyBits, o->server_key_bits);
2110: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2111: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
2112: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2113: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2114: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2115: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2116: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2117: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2118:
2119: /* formatted integer arguments */
2120: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2121: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2122: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2123: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
2124: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2125: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2126: o->hostbased_uses_name_from_packet_only);
2127: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
2128: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2129: #ifdef KRB5
1.182 dtucker 2130: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2131: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2132: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2133: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2134: #endif
2135: #ifdef GSSAPI
1.182 dtucker 2136: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2137: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2138: #endif
1.182 dtucker 2139: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2140: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2141: o->kbd_interactive_authentication);
2142: dump_cfg_fmtint(sChallengeResponseAuthentication,
2143: o->challenge_response_authentication);
2144: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2145: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2146: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2147: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2148: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2149: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2150: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2151: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2152: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2153: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2154: dump_cfg_fmtint(sUseLogin, o->use_login);
2155: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2156: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2157: dump_cfg_fmtint(sUseDNS, o->use_dns);
2158: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2159: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.251 millert 2160: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.182 dtucker 2161: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1.256 djm 2162: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.182 dtucker 2163:
2164: /* string arguments */
2165: dump_cfg_string(sPidFile, o->pid_file);
2166: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2167: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2168: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2169: dump_cfg_string(sBanner, o->banner);
2170: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2171: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2172: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2173: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2174: dump_cfg_string(sAuthorizedPrincipalsFile,
2175: o->authorized_principals_file);
1.261 dtucker 2176: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2177: ? "none" : o->version_addendum);
1.231 djm 2178: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2179: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.240 markus 2180: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2181: dump_cfg_string(sKexAlgorithms,
1.253 djm 2182: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.258 djm 2183: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2184: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
2185: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2186: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.182 dtucker 2187:
2188: /* string arguments requiring a lookup */
2189: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2190: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2191:
2192: /* string array arguments */
1.219 djm 2193: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2194: o->authorized_keys_files);
1.182 dtucker 2195: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2196: o->host_key_files);
1.261 dtucker 2197: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2198: o->host_cert_files);
1.182 dtucker 2199: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2200: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2201: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2202: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2203: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.232 djm 2204: dump_cfg_strarray_oneline(sAuthenticationMethods,
2205: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2206:
2207: /* other arguments */
2208: for (i = 0; i < o->num_subsystems; i++)
2209: printf("subsystem %s %s\n", o->subsystem_name[i],
2210: o->subsystem_args[i]);
2211:
2212: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2213: o->max_startups_rate, o->max_startups);
2214:
2215: for (i = 0; tunmode_desc[i].val != -1; i++)
2216: if (tunmode_desc[i].val == o->permit_tun) {
2217: s = tunmode_desc[i].text;
2218: break;
2219: }
2220: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2221:
1.214 stevesk 2222: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2223: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2224:
1.241 djm 2225: printf("rekeylimit %lld %d\n", (long long)o->rekey_limit,
2226: o->rekey_interval);
1.182 dtucker 2227:
2228: channel_print_adm_permitted_opens();
1.1 deraadt 2229: }
![[BACK]](/icons/back.gif){kind=icon}
Return to servconf.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh