Annotation of src/usr.bin/ssh/servconf.c, Revision 1.263
1.226 dtucker 1:
1.263 ! dtucker 2: /* $OpenBSD: servconf.c,v 1.262 2015/04/23 04:53:53 dtucker Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.154 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;
71: options->listen_addrs = NULL;
1.138 djm 72: options->address_family = -1;
1.54 markus 73: options->num_host_key_files = 0;
1.203 djm 74: options->num_host_cert_files = 0;
1.240 markus 75: options->host_key_agent = NULL;
1.36 markus 76: options->pid_file = NULL;
1.25 markus 77: options->server_key_bits = -1;
78: options->login_grace_time = -1;
79: options->key_regeneration_time = -1;
1.67 markus 80: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 81: options->ignore_rhosts = -1;
82: options->ignore_user_known_hosts = -1;
83: options->print_motd = -1;
1.72 stevesk 84: options->print_lastlog = -1;
1.25 markus 85: options->x11_forwarding = -1;
86: options->x11_display_offset = -1;
1.99 stevesk 87: options->x11_use_localhost = -1;
1.244 djm 88: options->permit_tty = -1;
1.250 djm 89: options->permit_user_rc = -1;
1.42 markus 90: options->xauth_location = NULL;
1.25 markus 91: options->strict_modes = -1;
1.129 markus 92: options->tcp_keep_alive = -1;
1.101 markus 93: options->log_facility = SYSLOG_FACILITY_NOT_SET;
94: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.25 markus 95: options->rhosts_rsa_authentication = -1;
1.75 markus 96: options->hostbased_authentication = -1;
97: options->hostbased_uses_name_from_packet_only = -1;
1.258 djm 98: options->hostbased_key_types = NULL;
1.25 markus 99: options->rsa_authentication = -1;
1.54 markus 100: options->pubkey_authentication = -1;
1.258 djm 101: options->pubkey_key_types = NULL;
1.25 markus 102: options->kerberos_authentication = -1;
103: options->kerberos_or_local_passwd = -1;
104: options->kerberos_ticket_cleanup = -1;
1.130 jakob 105: options->kerberos_get_afs_token = -1;
1.125 markus 106: options->gss_authentication=-1;
107: options->gss_cleanup_creds = -1;
1.25 markus 108: options->password_authentication = -1;
1.52 markus 109: options->kbd_interactive_authentication = -1;
1.80 markus 110: options->challenge_response_authentication = -1;
1.25 markus 111: options->permit_empty_passwd = -1;
1.113 markus 112: options->permit_user_env = -1;
1.25 markus 113: options->use_login = -1;
1.111 markus 114: options->compression = -1;
1.235 dtucker 115: options->rekey_limit = -1;
116: options->rekey_interval = -1;
1.53 markus 117: options->allow_tcp_forwarding = -1;
1.251 millert 118: options->allow_streamlocal_forwarding = -1;
1.178 pyr 119: options->allow_agent_forwarding = -1;
1.25 markus 120: options->num_allow_users = 0;
121: options->num_deny_users = 0;
122: options->num_allow_groups = 0;
123: options->num_deny_groups = 0;
1.33 markus 124: options->ciphers = NULL;
1.66 markus 125: options->macs = NULL;
1.211 djm 126: options->kex_algorithms = NULL;
1.33 markus 127: options->protocol = SSH_PROTO_UNKNOWN;
1.251 millert 128: options->fwd_opts.gateway_ports = -1;
129: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
130: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 131: options->num_subsystems = 0;
1.50 markus 132: options->max_startups_begin = -1;
133: options->max_startups_rate = -1;
1.46 markus 134: options->max_startups = -1;
1.133 dtucker 135: options->max_authtries = -1;
1.180 djm 136: options->max_sessions = -1;
1.57 markus 137: options->banner = NULL;
1.122 markus 138: options->use_dns = -1;
1.77 beck 139: options->client_alive_interval = -1;
140: options->client_alive_count_max = -1;
1.219 djm 141: options->num_authkeys_files = 0;
1.131 djm 142: options->num_accept_env = 0;
1.145 reyk 143: options->permit_tun = -1;
1.159 dtucker 144: options->num_permitted_opens = -1;
1.158 dtucker 145: options->adm_forced_command = NULL;
1.176 djm 146: options->chroot_directory = NULL;
1.231 djm 147: options->authorized_keys_command = NULL;
148: options->authorized_keys_command_user = NULL;
1.204 djm 149: options->revoked_keys_file = NULL;
150: options->trusted_user_ca_keys = NULL;
1.208 djm 151: options->authorized_principals_file = NULL;
1.213 djm 152: options->ip_qos_interactive = -1;
153: options->ip_qos_bulk = -1;
1.225 djm 154: options->version_addendum = NULL;
1.256 djm 155: options->fingerprint_hash = -1;
1.1 deraadt 156: }
157:
1.257 djm 158: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
159: static int
160: option_clear_or_none(const char *o)
161: {
162: return o == NULL || strcasecmp(o, "none") == 0;
163: }
164:
1.34 markus 165: void
1.25 markus 166: fill_default_server_options(ServerOptions *options)
1.1 deraadt 167: {
1.257 djm 168: int i;
169:
1.54 markus 170: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 171: options->protocol = SSH_PROTO_2;
1.54 markus 172: if (options->num_host_key_files == 0) {
173: /* fill default hostkeys for protocols */
174: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 175: options->host_key_files[options->num_host_key_files++] =
176: _PATH_HOST_KEY_FILE;
177: if (options->protocol & SSH_PROTO_2) {
178: options->host_key_files[options->num_host_key_files++] =
179: _PATH_HOST_RSA_KEY_FILE;
180: options->host_key_files[options->num_host_key_files++] =
181: _PATH_HOST_DSA_KEY_FILE;
1.210 naddy 182: options->host_key_files[options->num_host_key_files++] =
183: _PATH_HOST_ECDSA_KEY_FILE;
1.248 markus 184: options->host_key_files[options->num_host_key_files++] =
185: _PATH_HOST_ED25519_KEY_FILE;
1.97 stevesk 186: }
1.54 markus 187: }
1.203 djm 188: /* No certificates by default */
1.29 markus 189: if (options->num_ports == 0)
190: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
191: if (options->listen_addrs == NULL)
1.76 stevesk 192: add_listen_addr(options, NULL, 0);
1.36 markus 193: if (options->pid_file == NULL)
1.257 djm 194: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.25 markus 195: if (options->server_key_bits == -1)
1.185 djm 196: options->server_key_bits = 1024;
1.25 markus 197: if (options->login_grace_time == -1)
1.115 stevesk 198: options->login_grace_time = 120;
1.25 markus 199: if (options->key_regeneration_time == -1)
200: options->key_regeneration_time = 3600;
1.67 markus 201: if (options->permit_root_login == PERMIT_NOT_SET)
202: options->permit_root_login = PERMIT_YES;
1.25 markus 203: if (options->ignore_rhosts == -1)
1.30 markus 204: options->ignore_rhosts = 1;
1.25 markus 205: if (options->ignore_user_known_hosts == -1)
206: options->ignore_user_known_hosts = 0;
207: if (options->print_motd == -1)
208: options->print_motd = 1;
1.72 stevesk 209: if (options->print_lastlog == -1)
210: options->print_lastlog = 1;
1.25 markus 211: if (options->x11_forwarding == -1)
1.30 markus 212: options->x11_forwarding = 0;
1.25 markus 213: if (options->x11_display_offset == -1)
1.30 markus 214: options->x11_display_offset = 10;
1.99 stevesk 215: if (options->x11_use_localhost == -1)
216: options->x11_use_localhost = 1;
1.42 markus 217: if (options->xauth_location == NULL)
1.257 djm 218: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 219: if (options->permit_tty == -1)
220: options->permit_tty = 1;
1.250 djm 221: if (options->permit_user_rc == -1)
222: options->permit_user_rc = 1;
1.25 markus 223: if (options->strict_modes == -1)
224: options->strict_modes = 1;
1.129 markus 225: if (options->tcp_keep_alive == -1)
226: options->tcp_keep_alive = 1;
1.101 markus 227: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 228: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 229: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 230: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 231: if (options->rhosts_rsa_authentication == -1)
1.30 markus 232: options->rhosts_rsa_authentication = 0;
1.75 markus 233: if (options->hostbased_authentication == -1)
234: options->hostbased_authentication = 0;
235: if (options->hostbased_uses_name_from_packet_only == -1)
236: options->hostbased_uses_name_from_packet_only = 0;
1.258 djm 237: if (options->hostbased_key_types == NULL)
238: options->hostbased_key_types = xstrdup("*");
1.25 markus 239: if (options->rsa_authentication == -1)
240: options->rsa_authentication = 1;
1.54 markus 241: if (options->pubkey_authentication == -1)
242: options->pubkey_authentication = 1;
1.258 djm 243: if (options->pubkey_key_types == NULL)
244: options->pubkey_key_types = xstrdup("*");
1.25 markus 245: if (options->kerberos_authentication == -1)
1.107 markus 246: options->kerberos_authentication = 0;
1.25 markus 247: if (options->kerberos_or_local_passwd == -1)
248: options->kerberos_or_local_passwd = 1;
249: if (options->kerberos_ticket_cleanup == -1)
250: options->kerberos_ticket_cleanup = 1;
1.130 jakob 251: if (options->kerberos_get_afs_token == -1)
252: options->kerberos_get_afs_token = 0;
1.125 markus 253: if (options->gss_authentication == -1)
254: options->gss_authentication = 0;
255: if (options->gss_cleanup_creds == -1)
256: options->gss_cleanup_creds = 1;
1.25 markus 257: if (options->password_authentication == -1)
258: options->password_authentication = 1;
1.52 markus 259: if (options->kbd_interactive_authentication == -1)
260: options->kbd_interactive_authentication = 0;
1.80 markus 261: if (options->challenge_response_authentication == -1)
262: options->challenge_response_authentication = 1;
1.25 markus 263: if (options->permit_empty_passwd == -1)
1.30 markus 264: options->permit_empty_passwd = 0;
1.113 markus 265: if (options->permit_user_env == -1)
266: options->permit_user_env = 0;
1.25 markus 267: if (options->use_login == -1)
268: options->use_login = 0;
1.111 markus 269: if (options->compression == -1)
1.143 markus 270: options->compression = COMP_DELAYED;
1.235 dtucker 271: if (options->rekey_limit == -1)
272: options->rekey_limit = 0;
273: if (options->rekey_interval == -1)
274: options->rekey_interval = 0;
1.53 markus 275: if (options->allow_tcp_forwarding == -1)
1.233 djm 276: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 277: if (options->allow_streamlocal_forwarding == -1)
278: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 279: if (options->allow_agent_forwarding == -1)
280: options->allow_agent_forwarding = 1;
1.251 millert 281: if (options->fwd_opts.gateway_ports == -1)
282: options->fwd_opts.gateway_ports = 0;
1.46 markus 283: if (options->max_startups == -1)
1.234 dtucker 284: options->max_startups = 100;
1.50 markus 285: if (options->max_startups_rate == -1)
1.234 dtucker 286: options->max_startups_rate = 30; /* 30% */
1.50 markus 287: if (options->max_startups_begin == -1)
1.234 dtucker 288: options->max_startups_begin = 10;
1.133 dtucker 289: if (options->max_authtries == -1)
290: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 291: if (options->max_sessions == -1)
292: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 293: if (options->use_dns == -1)
1.260 deraadt 294: options->use_dns = 0;
1.77 beck 295: if (options->client_alive_interval == -1)
1.95 deraadt 296: options->client_alive_interval = 0;
1.77 beck 297: if (options->client_alive_count_max == -1)
298: options->client_alive_count_max = 3;
1.219 djm 299: if (options->num_authkeys_files == 0) {
300: options->authorized_keys_files[options->num_authkeys_files++] =
301: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS);
302: options->authorized_keys_files[options->num_authkeys_files++] =
303: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS2);
304: }
1.145 reyk 305: if (options->permit_tun == -1)
1.146 reyk 306: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 307: if (options->ip_qos_interactive == -1)
308: options->ip_qos_interactive = IPTOS_LOWDELAY;
309: if (options->ip_qos_bulk == -1)
310: options->ip_qos_bulk = IPTOS_THROUGHPUT;
1.225 djm 311: if (options->version_addendum == NULL)
312: options->version_addendum = xstrdup("");
1.251 millert 313: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
314: options->fwd_opts.streamlocal_bind_mask = 0177;
315: if (options->fwd_opts.streamlocal_bind_unlink == -1)
316: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 317: if (options->fingerprint_hash == -1)
318: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.110 markus 319: /* Turn privilege separation on by default */
1.102 provos 320: if (use_privsep == -1)
1.228 djm 321: use_privsep = PRIVSEP_NOSANDBOX;
1.257 djm 322:
323: #define CLEAR_ON_NONE(v) \
324: do { \
325: if (option_clear_or_none(v)) { \
326: free(v); \
327: v = NULL; \
328: } \
329: } while(0)
330: CLEAR_ON_NONE(options->pid_file);
331: CLEAR_ON_NONE(options->xauth_location);
332: CLEAR_ON_NONE(options->banner);
333: CLEAR_ON_NONE(options->trusted_user_ca_keys);
334: CLEAR_ON_NONE(options->revoked_keys_file);
335: for (i = 0; i < options->num_host_key_files; i++)
336: CLEAR_ON_NONE(options->host_key_files[i]);
337: for (i = 0; i < options->num_host_cert_files; i++)
338: CLEAR_ON_NONE(options->host_cert_files[i]);
339: #undef CLEAR_ON_NONE
1.1 deraadt 340: }
341:
342: /* Keyword tokens. */
1.25 markus 343: typedef enum {
344: sBadOption, /* == unknown option */
1.258 djm 345: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime,
346: sKeyRegenerationTime, sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 347: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 348: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 349: sKerberosGetAFSToken,
1.123 markus 350: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 351: sPasswordAuthentication, sKbdInteractiveAuthentication,
352: sListenAddress, sAddressFamily,
1.72 stevesk 353: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 354: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 355: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 356: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.235 dtucker 357: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 358: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.258 djm 359: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
360: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 361: sBanner, sUseDNS, sHostbasedAuthentication,
1.258 djm 362: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
363: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.145 reyk 364: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 365: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 366: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.249 djm 367: sHostCertificate,
1.208 djm 368: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.225 djm 369: sKexAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 370: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 371: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 372: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.256 djm 373: sAllowStreamLocalForwarding, sFingerprintHash,
1.121 jakob 374: sDeprecated, sUnsupported
1.1 deraadt 375: } ServerOpCodes;
376:
1.153 dtucker 377: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
378: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
379: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
380:
1.1 deraadt 381: /* Textual representation of the tokens. */
1.25 markus 382: static struct {
383: const char *name;
384: ServerOpCodes opcode;
1.153 dtucker 385: u_int flags;
1.25 markus 386: } keywords[] = {
1.153 dtucker 387: { "port", sPort, SSHCFG_GLOBAL },
388: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
389: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 390: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 391: { "pidfile", sPidFile, SSHCFG_GLOBAL },
392: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
393: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
394: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 395: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 396: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
397: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
398: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 399: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
400: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 401: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.258 djm 402: { "hostbasedacceptedkeytypes", sHostbasedAcceptedKeyTypes, SSHCFG_ALL },
1.168 dtucker 403: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
404: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.258 djm 405: { "pubkeyacceptedkeytypes", sPubkeyAcceptedKeyTypes, SSHCFG_ALL },
1.153 dtucker 406: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 407: #ifdef KRB5
1.168 dtucker 408: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 409: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
410: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
411: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 412: #else
1.168 dtucker 413: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 414: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
415: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
416: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 417: #endif
1.153 dtucker 418: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
419: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 420: #ifdef GSSAPI
1.168 dtucker 421: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 422: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 423: #else
1.168 dtucker 424: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 425: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 426: #endif
1.168 dtucker 427: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
428: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 429: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 430: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
431: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
432: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
433: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
434: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
435: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
436: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
437: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 438: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
439: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
440: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 441: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
442: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 443: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 444: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
445: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
446: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 447: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 448: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
449: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
450: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 451: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 452: { "allowusers", sAllowUsers, SSHCFG_ALL },
453: { "denyusers", sDenyUsers, SSHCFG_ALL },
454: { "allowgroups", sAllowGroups, SSHCFG_ALL },
455: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 456: { "ciphers", sCiphers, SSHCFG_GLOBAL },
457: { "macs", sMacs, SSHCFG_GLOBAL },
458: { "protocol", sProtocol, SSHCFG_GLOBAL },
459: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
460: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
461: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 462: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 463: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 464: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 465: { "usedns", sUseDNS, SSHCFG_GLOBAL },
466: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
467: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
468: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
469: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
1.209 djm 470: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 471: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.153 dtucker 472: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
1.227 markus 473: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.209 djm 474: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 475: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 476: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 477: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 478: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 479: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 480: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 481: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 482: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
483: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 484: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 485: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.213 djm 486: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 487: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
488: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.225 djm 489: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 490: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 491: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
492: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
493: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 494: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.153 dtucker 495: { NULL, sBadOption, 0 }
1.1 deraadt 496: };
497:
1.182 dtucker 498: static struct {
499: int val;
500: char *text;
501: } tunmode_desc[] = {
502: { SSH_TUNMODE_NO, "no" },
503: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
504: { SSH_TUNMODE_ETHERNET, "ethernet" },
505: { SSH_TUNMODE_YES, "yes" },
506: { -1, NULL }
507: };
508:
1.27 markus 509: /*
1.73 stevesk 510: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 511: */
1.1 deraadt 512:
1.34 markus 513: static ServerOpCodes
1.25 markus 514: parse_token(const char *cp, const char *filename,
1.153 dtucker 515: int linenum, u_int *flags)
1.1 deraadt 516: {
1.55 markus 517: u_int i;
1.1 deraadt 518:
1.25 markus 519: for (i = 0; keywords[i].name; i++)
1.153 dtucker 520: if (strcasecmp(cp, keywords[i].name) == 0) {
521: *flags = keywords[i].flags;
1.25 markus 522: return keywords[i].opcode;
1.153 dtucker 523: }
1.25 markus 524:
1.78 stevesk 525: error("%s: line %d: Bad configuration option: %s",
526: filename, linenum, cp);
1.25 markus 527: return sBadOption;
1.1 deraadt 528: }
529:
1.202 djm 530: char *
531: derelativise_path(const char *path)
532: {
1.259 deraadt 533: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 534:
1.257 djm 535: if (strcasecmp(path, "none") == 0)
536: return xstrdup("none");
1.202 djm 537: expanded = tilde_expand_filename(path, getuid());
538: if (*expanded == '/')
539: return expanded;
1.207 djm 540: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 541: fatal("%s: getcwd: %s", __func__, strerror(errno));
542: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 543: free(expanded);
1.202 djm 544: return ret;
545: }
546:
1.84 itojun 547: static void
1.194 djm 548: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 549: {
1.142 djm 550: u_int i;
1.74 stevesk 551:
552: if (options->num_ports == 0)
553: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 554: if (options->address_family == -1)
555: options->address_family = AF_UNSPEC;
1.76 stevesk 556: if (port == 0)
1.74 stevesk 557: for (i = 0; i < options->num_ports; i++)
558: add_one_listen_addr(options, addr, options->ports[i]);
559: else
1.76 stevesk 560: add_one_listen_addr(options, addr, port);
1.74 stevesk 561: }
562:
1.84 itojun 563: static void
1.194 djm 564: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 565: {
566: struct addrinfo hints, *ai, *aitop;
567: char strport[NI_MAXSERV];
568: int gaierr;
569:
1.74 stevesk 570: memset(&hints, 0, sizeof(hints));
1.138 djm 571: hints.ai_family = options->address_family;
1.74 stevesk 572: hints.ai_socktype = SOCK_STREAM;
573: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 574: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 575: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
576: fatal("bad addr or host: %s (%s)",
577: addr ? addr : "<NULL>",
1.173 dtucker 578: ssh_gai_strerror(gaierr));
1.74 stevesk 579: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
580: ;
581: ai->ai_next = options->listen_addrs;
582: options->listen_addrs = aitop;
1.29 markus 583: }
584:
1.226 dtucker 585: struct connection_info *
586: get_connection_info(int populate, int use_dns)
587: {
588: static struct connection_info ci;
589:
590: if (!populate)
591: return &ci;
592: ci.host = get_canonical_hostname(use_dns);
593: ci.address = get_remote_ipaddr();
594: ci.laddress = get_local_ipaddr(packet_get_connection_in());
595: ci.lport = get_local_port();
596: return &ci;
597: }
598:
1.153 dtucker 599: /*
600: * The strategy for the Match blocks is that the config file is parsed twice.
601: *
602: * The first time is at startup. activep is initialized to 1 and the
603: * directives in the global context are processed and acted on. Hitting a
604: * Match directive unsets activep and the directives inside the block are
605: * checked for syntax only.
606: *
607: * The second time is after a connection has been established but before
608: * authentication. activep is initialized to 2 and global config directives
609: * are ignored since they have already been processed. If the criteria in a
610: * Match block is met, activep is set and the subsequent directives
611: * processed and actioned until EOF or another Match block unsets it. Any
612: * options set are copied into the main server config.
613: *
614: * Potential additions/improvements:
615: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
616: *
617: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
618: * Match Address 192.168.0.*
619: * Tag trusted
620: * Match Group wheel
621: * Tag trusted
622: * Match Tag trusted
623: * AllowTcpForwarding yes
624: * GatewayPorts clientspecified
625: * [...]
626: *
627: * - Add a PermittedChannelRequests directive
628: * Match Group shell
629: * PermittedChannelRequests session,forwarded-tcpip
630: */
631:
632: static int
1.165 dtucker 633: match_cfg_line_group(const char *grps, int line, const char *user)
634: {
635: int result = 0;
636: struct passwd *pw;
637:
638: if (user == NULL)
639: goto out;
640:
641: if ((pw = getpwnam(user)) == NULL) {
642: debug("Can't match group at line %d because user %.100s does "
643: "not exist", line, user);
644: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
645: debug("Can't Match group because user %.100s not in any group "
646: "at line %d", user, line);
1.186 djm 647: } else if (ga_match_pattern_list(grps) != 1) {
648: debug("user %.100s does not match group list %.100s at line %d",
649: user, grps, line);
1.165 dtucker 650: } else {
1.186 djm 651: debug("user %.100s matched group list %.100s at line %d", user,
652: grps, line);
1.165 dtucker 653: result = 1;
654: }
655: out:
656: ga_free();
657: return result;
658: }
659:
1.226 dtucker 660: /*
1.230 dtucker 661: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 662: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 663: * not match.
1.226 dtucker 664: */
1.165 dtucker 665: static int
1.226 dtucker 666: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 667: {
1.243 dtucker 668: int result = 1, attributes = 0, port;
1.153 dtucker 669: char *arg, *attrib, *cp = *condition;
670: size_t len;
671:
1.226 dtucker 672: if (ci == NULL)
1.153 dtucker 673: debug3("checking syntax for 'Match %s'", cp);
674: else
1.226 dtucker 675: debug3("checking match for '%s' user %s host %s addr %s "
676: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
677: ci->host ? ci->host : "(null)",
678: ci->address ? ci->address : "(null)",
679: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 680:
681: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 682: attributes++;
683: if (strcasecmp(attrib, "all") == 0) {
684: if (attributes != 1 ||
685: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
686: error("'all' cannot be combined with other "
687: "Match attributes");
688: return -1;
689: }
690: *condition = cp;
691: return 1;
692: }
1.153 dtucker 693: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
694: error("Missing Match criteria for %s", attrib);
695: return -1;
696: }
697: len = strlen(arg);
698: if (strcasecmp(attrib, "user") == 0) {
1.226 dtucker 699: if (ci == NULL || ci->user == NULL) {
1.153 dtucker 700: result = 0;
701: continue;
702: }
1.226 dtucker 703: if (match_pattern_list(ci->user, arg, len, 0) != 1)
1.153 dtucker 704: result = 0;
705: else
706: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 707: "line %d", ci->user, arg, line);
1.165 dtucker 708: } else if (strcasecmp(attrib, "group") == 0) {
1.226 dtucker 709: if (ci == NULL || ci->user == NULL) {
710: result = 0;
711: continue;
712: }
713: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 714: case -1:
715: return -1;
716: case 0:
717: result = 0;
718: }
1.153 dtucker 719: } else if (strcasecmp(attrib, "host") == 0) {
1.226 dtucker 720: if (ci == NULL || ci->host == NULL) {
1.153 dtucker 721: result = 0;
722: continue;
723: }
1.226 dtucker 724: if (match_hostname(ci->host, arg, len) != 1)
1.153 dtucker 725: result = 0;
726: else
727: debug("connection from %.100s matched 'Host "
1.226 dtucker 728: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 729: } else if (strcasecmp(attrib, "address") == 0) {
1.226 dtucker 730: if (ci == NULL || ci->address == NULL) {
731: result = 0;
732: continue;
733: }
734: switch (addr_match_list(ci->address, arg)) {
1.181 djm 735: case 1:
736: debug("connection from %.100s matched 'Address "
1.226 dtucker 737: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 738: break;
739: case 0:
1.183 djm 740: case -1:
1.153 dtucker 741: result = 0;
1.181 djm 742: break;
1.183 djm 743: case -2:
1.181 djm 744: return -1;
1.153 dtucker 745: }
1.226 dtucker 746: } else if (strcasecmp(attrib, "localaddress") == 0){
747: if (ci == NULL || ci->laddress == NULL) {
748: result = 0;
749: continue;
750: }
751: switch (addr_match_list(ci->laddress, arg)) {
752: case 1:
753: debug("connection from %.100s matched "
754: "'LocalAddress %.100s' at line %d",
755: ci->laddress, arg, line);
756: break;
757: case 0:
758: case -1:
759: result = 0;
760: break;
761: case -2:
762: return -1;
763: }
764: } else if (strcasecmp(attrib, "localport") == 0) {
765: if ((port = a2port(arg)) == -1) {
766: error("Invalid LocalPort '%s' on Match line",
767: arg);
768: return -1;
769: }
770: if (ci == NULL || ci->lport == 0) {
771: result = 0;
772: continue;
773: }
774: /* TODO support port lists */
775: if (port == ci->lport)
776: debug("connection from %.100s matched "
777: "'LocalPort %d' at line %d",
778: ci->laddress, port, line);
779: else
780: result = 0;
1.153 dtucker 781: } else {
782: error("Unsupported Match attribute %s", attrib);
783: return -1;
784: }
1.243 dtucker 785: }
786: if (attributes == 0) {
787: error("One or more attributes required for Match");
788: return -1;
1.153 dtucker 789: }
1.226 dtucker 790: if (ci != NULL)
1.153 dtucker 791: debug3("match %sfound", result ? "" : "not ");
792: *condition = cp;
793: return result;
794: }
795:
1.158 dtucker 796: #define WHITESPACE " \t\r\n"
797:
1.220 djm 798: /* Multistate option parsing */
799: struct multistate {
800: char *key;
801: int value;
802: };
803: static const struct multistate multistate_addressfamily[] = {
804: { "inet", AF_INET },
805: { "inet6", AF_INET6 },
806: { "any", AF_UNSPEC },
807: { NULL, -1 }
808: };
809: static const struct multistate multistate_permitrootlogin[] = {
810: { "without-password", PERMIT_NO_PASSWD },
811: { "forced-commands-only", PERMIT_FORCED_ONLY },
812: { "yes", PERMIT_YES },
813: { "no", PERMIT_NO },
814: { NULL, -1 }
815: };
816: static const struct multistate multistate_compression[] = {
817: { "delayed", COMP_DELAYED },
818: { "yes", COMP_ZLIB },
819: { "no", COMP_NONE },
820: { NULL, -1 }
821: };
822: static const struct multistate multistate_gatewayports[] = {
823: { "clientspecified", 2 },
824: { "yes", 1 },
825: { "no", 0 },
826: { NULL, -1 }
827: };
1.222 djm 828: static const struct multistate multistate_privsep[] = {
1.228 djm 829: { "yes", PRIVSEP_NOSANDBOX },
830: { "sandbox", PRIVSEP_ON },
831: { "nosandbox", PRIVSEP_NOSANDBOX },
1.222 djm 832: { "no", PRIVSEP_OFF },
833: { NULL, -1 }
834: };
1.233 djm 835: static const struct multistate multistate_tcpfwd[] = {
836: { "yes", FORWARD_ALLOW },
837: { "all", FORWARD_ALLOW },
838: { "no", FORWARD_DENY },
839: { "remote", FORWARD_REMOTE },
840: { "local", FORWARD_LOCAL },
841: { NULL, -1 }
842: };
1.220 djm 843:
1.94 markus 844: int
845: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 846: const char *filename, int linenum, int *activep,
847: struct connection_info *connectinfo)
1.1 deraadt 848: {
1.238 dtucker 849: char *cp, **charptr, *arg, *p;
1.237 dtucker 850: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 851: SyslogFacility *log_facility_ptr;
852: LogLevel *log_level_ptr;
1.25 markus 853: ServerOpCodes opcode;
1.153 dtucker 854: u_int i, flags = 0;
1.151 djm 855: size_t len;
1.237 dtucker 856: long long val64;
1.220 djm 857: const struct multistate *multistate_ptr;
1.25 markus 858:
1.94 markus 859: cp = line;
1.148 dtucker 860: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 861: return 0;
1.94 markus 862: /* Ignore leading whitespace */
863: if (*arg == '\0')
864: arg = strdelim(&cp);
865: if (!arg || !*arg || *arg == '#')
866: return 0;
867: intptr = NULL;
868: charptr = NULL;
1.153 dtucker 869: opcode = parse_token(arg, filename, linenum, &flags);
870:
871: if (activep == NULL) { /* We are processing a command line directive */
872: cmdline = 1;
873: activep = &cmdline;
874: }
875: if (*activep && opcode != sMatch)
876: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
877: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 878: if (connectinfo == NULL) {
1.153 dtucker 879: fatal("%s line %d: Directive '%s' is not allowed "
880: "within a Match block", filename, linenum, arg);
881: } else { /* this is a directive we have already processed */
882: while (arg)
883: arg = strdelim(&cp);
884: return 0;
885: }
886: }
887:
1.94 markus 888: switch (opcode) {
889: case sBadOption:
890: return -1;
891: case sPort:
892: /* ignore ports from configfile if cmdline specifies ports */
893: if (options->ports_from_cmdline)
894: return 0;
895: if (options->listen_addrs != NULL)
896: fatal("%s line %d: ports must be specified before "
1.98 stevesk 897: "ListenAddress.", filename, linenum);
1.94 markus 898: if (options->num_ports >= MAX_PORTS)
899: fatal("%s line %d: too many ports.",
900: filename, linenum);
1.48 provos 901: arg = strdelim(&cp);
1.94 markus 902: if (!arg || *arg == '\0')
903: fatal("%s line %d: missing port number.",
904: filename, linenum);
905: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 906: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 907: fatal("%s line %d: Badly formatted port number.",
908: filename, linenum);
909: break;
1.29 markus 910:
1.94 markus 911: case sServerKeyBits:
912: intptr = &options->server_key_bits;
1.180 djm 913: parse_int:
1.94 markus 914: arg = strdelim(&cp);
915: if (!arg || *arg == '\0')
916: fatal("%s line %d: missing integer value.",
917: filename, linenum);
918: value = atoi(arg);
1.153 dtucker 919: if (*activep && *intptr == -1)
1.94 markus 920: *intptr = value;
921: break;
1.25 markus 922:
1.94 markus 923: case sLoginGraceTime:
924: intptr = &options->login_grace_time;
1.180 djm 925: parse_time:
1.94 markus 926: arg = strdelim(&cp);
927: if (!arg || *arg == '\0')
928: fatal("%s line %d: missing time value.",
929: filename, linenum);
930: if ((value = convtime(arg)) == -1)
931: fatal("%s line %d: invalid time value.",
932: filename, linenum);
933: if (*intptr == -1)
934: *intptr = value;
935: break;
936:
937: case sKeyRegenerationTime:
938: intptr = &options->key_regeneration_time;
939: goto parse_time;
940:
941: case sListenAddress:
942: arg = strdelim(&cp);
1.139 djm 943: if (arg == NULL || *arg == '\0')
944: fatal("%s line %d: missing address",
1.94 markus 945: filename, linenum);
1.144 dtucker 946: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
947: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
948: && strchr(p+1, ':') != NULL) {
949: add_listen_addr(options, arg, 0);
950: break;
951: }
1.139 djm 952: p = hpdelim(&arg);
953: if (p == NULL)
954: fatal("%s line %d: bad address:port usage",
955: filename, linenum);
956: p = cleanhostname(p);
957: if (arg == NULL)
958: port = 0;
1.194 djm 959: else if ((port = a2port(arg)) <= 0)
1.139 djm 960: fatal("%s line %d: bad port number", filename, linenum);
961:
962: add_listen_addr(options, p, port);
1.25 markus 963:
1.138 djm 964: break;
965:
966: case sAddressFamily:
1.220 djm 967: intptr = &options->address_family;
968: multistate_ptr = multistate_addressfamily;
969: if (options->listen_addrs != NULL)
970: fatal("%s line %d: address family must be specified "
971: "before ListenAddress.", filename, linenum);
972: parse_multistate:
1.138 djm 973: arg = strdelim(&cp);
1.141 markus 974: if (!arg || *arg == '\0')
1.220 djm 975: fatal("%s line %d: missing argument.",
1.141 markus 976: filename, linenum);
1.220 djm 977: value = -1;
978: for (i = 0; multistate_ptr[i].key != NULL; i++) {
979: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
980: value = multistate_ptr[i].value;
981: break;
982: }
983: }
984: if (value == -1)
985: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 986: filename, linenum, arg);
1.220 djm 987: if (*activep && *intptr == -1)
1.138 djm 988: *intptr = value;
1.94 markus 989: break;
990:
991: case sHostKeyFile:
992: intptr = &options->num_host_key_files;
993: if (*intptr >= MAX_HOSTKEYS)
994: fatal("%s line %d: too many host keys specified (max %d).",
995: filename, linenum, MAX_HOSTKEYS);
996: charptr = &options->host_key_files[*intptr];
1.180 djm 997: parse_filename:
1.94 markus 998: arg = strdelim(&cp);
999: if (!arg || *arg == '\0')
1000: fatal("%s line %d: missing file name.",
1001: filename, linenum);
1.153 dtucker 1002: if (*activep && *charptr == NULL) {
1.202 djm 1003: *charptr = derelativise_path(arg);
1.94 markus 1004: /* increase optional counter */
1005: if (intptr != NULL)
1006: *intptr = *intptr + 1;
1007: }
1008: break;
1.76 stevesk 1009:
1.240 markus 1010: case sHostKeyAgent:
1011: charptr = &options->host_key_agent;
1012: arg = strdelim(&cp);
1013: if (!arg || *arg == '\0')
1014: fatal("%s line %d: missing socket name.",
1015: filename, linenum);
1016: if (*activep && *charptr == NULL)
1017: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1018: xstrdup(arg) : derelativise_path(arg);
1019: break;
1020:
1.203 djm 1021: case sHostCertificate:
1022: intptr = &options->num_host_cert_files;
1023: if (*intptr >= MAX_HOSTKEYS)
1024: fatal("%s line %d: too many host certificates "
1025: "specified (max %d).", filename, linenum,
1026: MAX_HOSTCERTS);
1027: charptr = &options->host_cert_files[*intptr];
1028: goto parse_filename;
1029: break;
1030:
1.94 markus 1031: case sPidFile:
1032: charptr = &options->pid_file;
1033: goto parse_filename;
1.25 markus 1034:
1.94 markus 1035: case sPermitRootLogin:
1036: intptr = &options->permit_root_login;
1.220 djm 1037: multistate_ptr = multistate_permitrootlogin;
1038: goto parse_multistate;
1.36 markus 1039:
1.94 markus 1040: case sIgnoreRhosts:
1041: intptr = &options->ignore_rhosts;
1.180 djm 1042: parse_flag:
1.94 markus 1043: arg = strdelim(&cp);
1044: if (!arg || *arg == '\0')
1045: fatal("%s line %d: missing yes/no argument.",
1046: filename, linenum);
1047: value = 0; /* silence compiler */
1048: if (strcmp(arg, "yes") == 0)
1049: value = 1;
1050: else if (strcmp(arg, "no") == 0)
1051: value = 0;
1052: else
1053: fatal("%s line %d: Bad yes/no argument: %s",
1054: filename, linenum, arg);
1.153 dtucker 1055: if (*activep && *intptr == -1)
1.94 markus 1056: *intptr = value;
1057: break;
1058:
1059: case sIgnoreUserKnownHosts:
1060: intptr = &options->ignore_user_known_hosts;
1061: goto parse_flag;
1062:
1063: case sRhostsRSAAuthentication:
1064: intptr = &options->rhosts_rsa_authentication;
1065: goto parse_flag;
1066:
1067: case sHostbasedAuthentication:
1068: intptr = &options->hostbased_authentication;
1069: goto parse_flag;
1070:
1071: case sHostbasedUsesNameFromPacketOnly:
1072: intptr = &options->hostbased_uses_name_from_packet_only;
1073: goto parse_flag;
1074:
1.258 djm 1075: case sHostbasedAcceptedKeyTypes:
1076: charptr = &options->hostbased_key_types;
1077: parse_keytypes:
1078: arg = strdelim(&cp);
1079: if (!arg || *arg == '\0')
1080: fatal("%s line %d: Missing argument.",
1081: filename, linenum);
1082: if (!sshkey_names_valid2(arg, 1))
1083: fatal("%s line %d: Bad key types '%s'.",
1084: filename, linenum, arg ? arg : "<NONE>");
1085: if (*activep && *charptr == NULL)
1086: *charptr = xstrdup(arg);
1087: break;
1088:
1.94 markus 1089: case sRSAAuthentication:
1090: intptr = &options->rsa_authentication;
1091: goto parse_flag;
1092:
1093: case sPubkeyAuthentication:
1094: intptr = &options->pubkey_authentication;
1095: goto parse_flag;
1.119 jakob 1096:
1.258 djm 1097: case sPubkeyAcceptedKeyTypes:
1098: charptr = &options->pubkey_key_types;
1099: goto parse_keytypes;
1100:
1.94 markus 1101: case sKerberosAuthentication:
1102: intptr = &options->kerberos_authentication;
1103: goto parse_flag;
1104:
1105: case sKerberosOrLocalPasswd:
1106: intptr = &options->kerberos_or_local_passwd;
1107: goto parse_flag;
1108:
1109: case sKerberosTicketCleanup:
1110: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1111: goto parse_flag;
1112:
1113: case sKerberosGetAFSToken:
1114: intptr = &options->kerberos_get_afs_token;
1.125 markus 1115: goto parse_flag;
1116:
1117: case sGssAuthentication:
1118: intptr = &options->gss_authentication;
1119: goto parse_flag;
1120:
1121: case sGssCleanupCreds:
1122: intptr = &options->gss_cleanup_creds;
1.94 markus 1123: goto parse_flag;
1124:
1125: case sPasswordAuthentication:
1126: intptr = &options->password_authentication;
1127: goto parse_flag;
1128:
1129: case sKbdInteractiveAuthentication:
1130: intptr = &options->kbd_interactive_authentication;
1131: goto parse_flag;
1132:
1133: case sChallengeResponseAuthentication:
1134: intptr = &options->challenge_response_authentication;
1135: goto parse_flag;
1136:
1137: case sPrintMotd:
1138: intptr = &options->print_motd;
1139: goto parse_flag;
1140:
1141: case sPrintLastLog:
1142: intptr = &options->print_lastlog;
1143: goto parse_flag;
1144:
1145: case sX11Forwarding:
1146: intptr = &options->x11_forwarding;
1147: goto parse_flag;
1148:
1149: case sX11DisplayOffset:
1150: intptr = &options->x11_display_offset;
1151: goto parse_int;
1.99 stevesk 1152:
1153: case sX11UseLocalhost:
1154: intptr = &options->x11_use_localhost;
1155: goto parse_flag;
1.94 markus 1156:
1157: case sXAuthLocation:
1158: charptr = &options->xauth_location;
1159: goto parse_filename;
1160:
1.244 djm 1161: case sPermitTTY:
1162: intptr = &options->permit_tty;
1163: goto parse_flag;
1164:
1.250 djm 1165: case sPermitUserRC:
1166: intptr = &options->permit_user_rc;
1167: goto parse_flag;
1168:
1.94 markus 1169: case sStrictModes:
1170: intptr = &options->strict_modes;
1171: goto parse_flag;
1172:
1.129 markus 1173: case sTCPKeepAlive:
1174: intptr = &options->tcp_keep_alive;
1.94 markus 1175: goto parse_flag;
1176:
1177: case sEmptyPasswd:
1178: intptr = &options->permit_empty_passwd;
1.113 markus 1179: goto parse_flag;
1180:
1181: case sPermitUserEnvironment:
1182: intptr = &options->permit_user_env;
1.94 markus 1183: goto parse_flag;
1184:
1185: case sUseLogin:
1186: intptr = &options->use_login;
1.111 markus 1187: goto parse_flag;
1188:
1189: case sCompression:
1190: intptr = &options->compression;
1.220 djm 1191: multistate_ptr = multistate_compression;
1192: goto parse_multistate;
1.94 markus 1193:
1.235 dtucker 1194: case sRekeyLimit:
1195: arg = strdelim(&cp);
1196: if (!arg || *arg == '\0')
1197: fatal("%.200s line %d: Missing argument.", filename,
1198: linenum);
1199: if (strcmp(arg, "default") == 0) {
1200: val64 = 0;
1201: } else {
1.236 dtucker 1202: if (scan_scaled(arg, &val64) == -1)
1203: fatal("%.200s line %d: Bad number '%s': %s",
1204: filename, linenum, arg, strerror(errno));
1205: /* check for too-large or too-small limits */
1206: if (val64 > UINT_MAX)
1.235 dtucker 1207: fatal("%.200s line %d: RekeyLimit too large",
1208: filename, linenum);
1209: if (val64 != 0 && val64 < 16)
1210: fatal("%.200s line %d: RekeyLimit too small",
1211: filename, linenum);
1212: }
1213: if (*activep && options->rekey_limit == -1)
1214: options->rekey_limit = (u_int32_t)val64;
1215: if (cp != NULL) { /* optional rekey interval present */
1216: if (strcmp(cp, "none") == 0) {
1217: (void)strdelim(&cp); /* discard */
1218: break;
1219: }
1220: intptr = &options->rekey_interval;
1221: goto parse_time;
1222: }
1223: break;
1224:
1.94 markus 1225: case sGatewayPorts:
1.251 millert 1226: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1227: multistate_ptr = multistate_gatewayports;
1228: goto parse_multistate;
1.25 markus 1229:
1.122 markus 1230: case sUseDNS:
1231: intptr = &options->use_dns;
1.94 markus 1232: goto parse_flag;
1.53 markus 1233:
1.94 markus 1234: case sLogFacility:
1.174 dtucker 1235: log_facility_ptr = &options->log_facility;
1.94 markus 1236: arg = strdelim(&cp);
1237: value = log_facility_number(arg);
1.101 markus 1238: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1239: fatal("%.200s line %d: unsupported log facility '%s'",
1240: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1241: if (*log_facility_ptr == -1)
1242: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1243: break;
1.25 markus 1244:
1.94 markus 1245: case sLogLevel:
1.174 dtucker 1246: log_level_ptr = &options->log_level;
1.94 markus 1247: arg = strdelim(&cp);
1248: value = log_level_number(arg);
1.101 markus 1249: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1250: fatal("%.200s line %d: unsupported log level '%s'",
1251: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1252: if (*log_level_ptr == -1)
1253: *log_level_ptr = (LogLevel) value;
1.94 markus 1254: break;
1255:
1256: case sAllowTcpForwarding:
1257: intptr = &options->allow_tcp_forwarding;
1.233 djm 1258: multistate_ptr = multistate_tcpfwd;
1259: goto parse_multistate;
1.102 provos 1260:
1.251 millert 1261: case sAllowStreamLocalForwarding:
1262: intptr = &options->allow_streamlocal_forwarding;
1263: multistate_ptr = multistate_tcpfwd;
1264: goto parse_multistate;
1265:
1.178 pyr 1266: case sAllowAgentForwarding:
1267: intptr = &options->allow_agent_forwarding;
1268: goto parse_flag;
1269:
1.102 provos 1270: case sUsePrivilegeSeparation:
1271: intptr = &use_privsep;
1.222 djm 1272: multistate_ptr = multistate_privsep;
1273: goto parse_multistate;
1.94 markus 1274:
1275: case sAllowUsers:
1276: while ((arg = strdelim(&cp)) && *arg != '\0') {
1277: if (options->num_allow_users >= MAX_ALLOW_USERS)
1278: fatal("%s line %d: too many allow users.",
1279: filename, linenum);
1.227 markus 1280: if (!*activep)
1281: continue;
1.112 deraadt 1282: options->allow_users[options->num_allow_users++] =
1283: xstrdup(arg);
1.94 markus 1284: }
1285: break;
1.25 markus 1286:
1.94 markus 1287: case sDenyUsers:
1288: while ((arg = strdelim(&cp)) && *arg != '\0') {
1289: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1290: fatal("%s line %d: too many deny users.",
1.94 markus 1291: filename, linenum);
1.227 markus 1292: if (!*activep)
1293: continue;
1.112 deraadt 1294: options->deny_users[options->num_deny_users++] =
1295: xstrdup(arg);
1.94 markus 1296: }
1297: break;
1.25 markus 1298:
1.94 markus 1299: case sAllowGroups:
1300: while ((arg = strdelim(&cp)) && *arg != '\0') {
1301: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1302: fatal("%s line %d: too many allow groups.",
1303: filename, linenum);
1.227 markus 1304: if (!*activep)
1305: continue;
1.112 deraadt 1306: options->allow_groups[options->num_allow_groups++] =
1307: xstrdup(arg);
1.94 markus 1308: }
1309: break;
1.33 markus 1310:
1.94 markus 1311: case sDenyGroups:
1312: while ((arg = strdelim(&cp)) && *arg != '\0') {
1313: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1314: fatal("%s line %d: too many deny groups.",
1315: filename, linenum);
1.227 markus 1316: if (!*activep)
1317: continue;
1318: options->deny_groups[options->num_deny_groups++] =
1319: xstrdup(arg);
1.94 markus 1320: }
1321: break;
1.66 markus 1322:
1.94 markus 1323: case sCiphers:
1324: arg = strdelim(&cp);
1325: if (!arg || *arg == '\0')
1326: fatal("%s line %d: Missing argument.", filename, linenum);
1327: if (!ciphers_valid(arg))
1328: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1329: filename, linenum, arg ? arg : "<NONE>");
1330: if (options->ciphers == NULL)
1331: options->ciphers = xstrdup(arg);
1332: break;
1.33 markus 1333:
1.94 markus 1334: case sMacs:
1335: arg = strdelim(&cp);
1336: if (!arg || *arg == '\0')
1337: fatal("%s line %d: Missing argument.", filename, linenum);
1338: if (!mac_valid(arg))
1339: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1340: filename, linenum, arg ? arg : "<NONE>");
1341: if (options->macs == NULL)
1342: options->macs = xstrdup(arg);
1.211 djm 1343: break;
1344:
1345: case sKexAlgorithms:
1346: arg = strdelim(&cp);
1347: if (!arg || *arg == '\0')
1348: fatal("%s line %d: Missing argument.",
1349: filename, linenum);
1350: if (!kex_names_valid(arg))
1351: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1352: filename, linenum, arg ? arg : "<NONE>");
1353: if (options->kex_algorithms == NULL)
1354: options->kex_algorithms = xstrdup(arg);
1.94 markus 1355: break;
1.43 jakob 1356:
1.94 markus 1357: case sProtocol:
1358: intptr = &options->protocol;
1359: arg = strdelim(&cp);
1360: if (!arg || *arg == '\0')
1361: fatal("%s line %d: Missing argument.", filename, linenum);
1362: value = proto_spec(arg);
1363: if (value == SSH_PROTO_UNKNOWN)
1364: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1365: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1366: if (*intptr == SSH_PROTO_UNKNOWN)
1367: *intptr = value;
1368: break;
1369:
1370: case sSubsystem:
1371: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1372: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1373: filename, linenum);
1.94 markus 1374: }
1375: arg = strdelim(&cp);
1376: if (!arg || *arg == '\0')
1377: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1378: filename, linenum);
1.153 dtucker 1379: if (!*activep) {
1380: arg = strdelim(&cp);
1381: break;
1382: }
1.94 markus 1383: for (i = 0; i < options->num_subsystems; i++)
1384: if (strcmp(arg, options->subsystem_name[i]) == 0)
1385: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1386: filename, linenum, arg);
1.94 markus 1387: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1388: arg = strdelim(&cp);
1389: if (!arg || *arg == '\0')
1390: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1391: filename, linenum);
1.94 markus 1392: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1393:
1394: /* Collect arguments (separate to executable) */
1395: p = xstrdup(arg);
1396: len = strlen(p) + 1;
1397: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1398: len += 1 + strlen(arg);
1399: p = xrealloc(p, 1, len);
1400: strlcat(p, " ", len);
1401: strlcat(p, arg, len);
1402: }
1403: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1404: options->num_subsystems++;
1405: break;
1.46 markus 1406:
1.94 markus 1407: case sMaxStartups:
1408: arg = strdelim(&cp);
1409: if (!arg || *arg == '\0')
1410: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1411: filename, linenum);
1.94 markus 1412: if ((n = sscanf(arg, "%d:%d:%d",
1413: &options->max_startups_begin,
1414: &options->max_startups_rate,
1415: &options->max_startups)) == 3) {
1416: if (options->max_startups_begin >
1417: options->max_startups ||
1418: options->max_startups_rate > 100 ||
1419: options->max_startups_rate < 1)
1.50 markus 1420: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1421: filename, linenum);
1.94 markus 1422: } else if (n != 1)
1423: fatal("%s line %d: Illegal MaxStartups spec.",
1424: filename, linenum);
1425: else
1426: options->max_startups = options->max_startups_begin;
1427: break;
1.133 dtucker 1428:
1429: case sMaxAuthTries:
1430: intptr = &options->max_authtries;
1431: goto parse_int;
1.94 markus 1432:
1.180 djm 1433: case sMaxSessions:
1434: intptr = &options->max_sessions;
1435: goto parse_int;
1436:
1.94 markus 1437: case sBanner:
1438: charptr = &options->banner;
1439: goto parse_filename;
1.176 djm 1440:
1.94 markus 1441: /*
1442: * These options can contain %X options expanded at
1443: * connect time, so that you can specify paths like:
1444: *
1445: * AuthorizedKeysFile /etc/ssh_keys/%u
1446: */
1447: case sAuthorizedKeysFile:
1.219 djm 1448: if (*activep && options->num_authkeys_files == 0) {
1449: while ((arg = strdelim(&cp)) && *arg != '\0') {
1450: if (options->num_authkeys_files >=
1451: MAX_AUTHKEYS_FILES)
1452: fatal("%s line %d: "
1453: "too many authorized keys files.",
1454: filename, linenum);
1455: options->authorized_keys_files[
1456: options->num_authkeys_files++] =
1457: tilde_expand_filename(arg, getuid());
1458: }
1459: }
1460: return 0;
1461:
1.208 djm 1462: case sAuthorizedPrincipalsFile:
1463: charptr = &options->authorized_principals_file;
1.205 djm 1464: arg = strdelim(&cp);
1465: if (!arg || *arg == '\0')
1466: fatal("%s line %d: missing file name.",
1467: filename, linenum);
1468: if (*activep && *charptr == NULL) {
1.206 markus 1469: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1470: /* increase optional counter */
1471: if (intptr != NULL)
1472: *intptr = *intptr + 1;
1473: }
1474: break;
1.94 markus 1475:
1476: case sClientAliveInterval:
1477: intptr = &options->client_alive_interval;
1478: goto parse_time;
1479:
1480: case sClientAliveCountMax:
1481: intptr = &options->client_alive_count_max;
1482: goto parse_int;
1.131 djm 1483:
1484: case sAcceptEnv:
1485: while ((arg = strdelim(&cp)) && *arg != '\0') {
1486: if (strchr(arg, '=') != NULL)
1487: fatal("%s line %d: Invalid environment name.",
1488: filename, linenum);
1489: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1490: fatal("%s line %d: too many allow env.",
1491: filename, linenum);
1.153 dtucker 1492: if (!*activep)
1.227 markus 1493: continue;
1.131 djm 1494: options->accept_env[options->num_accept_env++] =
1495: xstrdup(arg);
1496: }
1497: break;
1.145 reyk 1498:
1499: case sPermitTunnel:
1500: intptr = &options->permit_tun;
1.146 reyk 1501: arg = strdelim(&cp);
1502: if (!arg || *arg == '\0')
1503: fatal("%s line %d: Missing yes/point-to-point/"
1504: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1505: value = -1;
1506: for (i = 0; tunmode_desc[i].val != -1; i++)
1507: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1508: value = tunmode_desc[i].val;
1509: break;
1510: }
1511: if (value == -1)
1.146 reyk 1512: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1513: "no argument: %s", filename, linenum, arg);
1514: if (*intptr == -1)
1515: *intptr = value;
1516: break;
1.94 markus 1517:
1.153 dtucker 1518: case sMatch:
1519: if (cmdline)
1520: fatal("Match directive not supported as a command-line "
1521: "option");
1.226 dtucker 1522: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1523: if (value < 0)
1524: fatal("%s line %d: Bad Match condition", filename,
1525: linenum);
1526: *activep = value;
1.156 dtucker 1527: break;
1528:
1529: case sPermitOpen:
1530: arg = strdelim(&cp);
1531: if (!arg || *arg == '\0')
1532: fatal("%s line %d: missing PermitOpen specification",
1533: filename, linenum);
1.167 dtucker 1534: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1535: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1536: if (*activep && n == -1) {
1.156 dtucker 1537: channel_clear_adm_permitted_opens();
1.159 dtucker 1538: options->num_permitted_opens = 0;
1.224 dtucker 1539: }
1540: break;
1541: }
1542: if (strcmp(arg, "none") == 0) {
1543: if (*activep && n == -1) {
1544: options->num_permitted_opens = 1;
1545: channel_disable_adm_local_opens();
1.159 dtucker 1546: }
1.156 dtucker 1547: break;
1548: }
1.166 dtucker 1549: if (*activep && n == -1)
1550: channel_clear_adm_permitted_opens();
1.159 dtucker 1551: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1552: p = hpdelim(&arg);
1553: if (p == NULL)
1554: fatal("%s line %d: missing host in PermitOpen",
1555: filename, linenum);
1556: p = cleanhostname(p);
1.223 dtucker 1557: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.159 dtucker 1558: fatal("%s line %d: bad port number in "
1559: "PermitOpen", filename, linenum);
1.166 dtucker 1560: if (*activep && n == -1)
1.159 dtucker 1561: options->num_permitted_opens =
1562: channel_add_adm_permitted_opens(p, port);
1563: }
1.153 dtucker 1564: break;
1565:
1.158 dtucker 1566: case sForceCommand:
1.262 dtucker 1567: if (cp == NULL || *cp == '\0')
1.158 dtucker 1568: fatal("%.200s line %d: Missing argument.", filename,
1569: linenum);
1570: len = strspn(cp, WHITESPACE);
1571: if (*activep && options->adm_forced_command == NULL)
1572: options->adm_forced_command = xstrdup(cp + len);
1573: return 0;
1574:
1.176 djm 1575: case sChrootDirectory:
1576: charptr = &options->chroot_directory;
1.177 djm 1577:
1578: arg = strdelim(&cp);
1579: if (!arg || *arg == '\0')
1580: fatal("%s line %d: missing file name.",
1581: filename, linenum);
1582: if (*activep && *charptr == NULL)
1583: *charptr = xstrdup(arg);
1584: break;
1.176 djm 1585:
1.204 djm 1586: case sTrustedUserCAKeys:
1587: charptr = &options->trusted_user_ca_keys;
1588: goto parse_filename;
1589:
1590: case sRevokedKeys:
1591: charptr = &options->revoked_keys_file;
1592: goto parse_filename;
1593:
1.213 djm 1594: case sIPQoS:
1595: arg = strdelim(&cp);
1596: if ((value = parse_ipqos(arg)) == -1)
1597: fatal("%s line %d: Bad IPQoS value: %s",
1598: filename, linenum, arg);
1599: arg = strdelim(&cp);
1600: if (arg == NULL)
1601: value2 = value;
1602: else if ((value2 = parse_ipqos(arg)) == -1)
1603: fatal("%s line %d: Bad IPQoS value: %s",
1604: filename, linenum, arg);
1605: if (*activep) {
1606: options->ip_qos_interactive = value;
1607: options->ip_qos_bulk = value2;
1608: }
1609: break;
1610:
1.225 djm 1611: case sVersionAddendum:
1.262 dtucker 1612: if (cp == NULL || *cp == '\0')
1.225 djm 1613: fatal("%.200s line %d: Missing argument.", filename,
1614: linenum);
1615: len = strspn(cp, WHITESPACE);
1616: if (*activep && options->version_addendum == NULL) {
1617: if (strcasecmp(cp + len, "none") == 0)
1618: options->version_addendum = xstrdup("");
1619: else if (strchr(cp + len, '\r') != NULL)
1620: fatal("%.200s line %d: Invalid argument",
1621: filename, linenum);
1622: else
1623: options->version_addendum = xstrdup(cp + len);
1624: }
1625: return 0;
1626:
1.231 djm 1627: case sAuthorizedKeysCommand:
1.255 jsg 1628: if (cp == NULL)
1629: fatal("%.200s line %d: Missing argument.", filename,
1630: linenum);
1.231 djm 1631: len = strspn(cp, WHITESPACE);
1632: if (*activep && options->authorized_keys_command == NULL) {
1633: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1634: fatal("%.200s line %d: AuthorizedKeysCommand "
1635: "must be an absolute path",
1636: filename, linenum);
1637: options->authorized_keys_command = xstrdup(cp + len);
1638: }
1639: return 0;
1640:
1641: case sAuthorizedKeysCommandUser:
1642: charptr = &options->authorized_keys_command_user;
1643:
1644: arg = strdelim(&cp);
1.255 jsg 1645: if (!arg || *arg == '\0')
1646: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1647: "argument.", filename, linenum);
1.231 djm 1648: if (*activep && *charptr == NULL)
1649: *charptr = xstrdup(arg);
1650: break;
1651:
1.232 djm 1652: case sAuthenticationMethods:
1653: if (*activep && options->num_auth_methods == 0) {
1654: while ((arg = strdelim(&cp)) && *arg != '\0') {
1655: if (options->num_auth_methods >=
1656: MAX_AUTH_METHODS)
1657: fatal("%s line %d: "
1658: "too many authentication methods.",
1659: filename, linenum);
1660: if (auth2_methods_valid(arg, 0) != 0)
1661: fatal("%s line %d: invalid "
1662: "authentication method list.",
1663: filename, linenum);
1664: options->auth_methods[
1665: options->num_auth_methods++] = xstrdup(arg);
1666: }
1667: }
1668: return 0;
1669:
1.251 millert 1670: case sStreamLocalBindMask:
1671: arg = strdelim(&cp);
1672: if (!arg || *arg == '\0')
1673: fatal("%s line %d: missing StreamLocalBindMask argument.",
1674: filename, linenum);
1675: /* Parse mode in octal format */
1676: value = strtol(arg, &p, 8);
1677: if (arg == p || value < 0 || value > 0777)
1678: fatal("%s line %d: Bad mask.", filename, linenum);
1679: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1680: break;
1681:
1682: case sStreamLocalBindUnlink:
1683: intptr = &options->fwd_opts.streamlocal_bind_unlink;
1684: goto parse_flag;
1685:
1.256 djm 1686: case sFingerprintHash:
1687: arg = strdelim(&cp);
1688: if (!arg || *arg == '\0')
1689: fatal("%.200s line %d: Missing argument.",
1690: filename, linenum);
1691: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1692: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
1693: filename, linenum, arg);
1694: if (*activep)
1695: options->fingerprint_hash = value;
1696: break;
1697:
1.94 markus 1698: case sDeprecated:
1.117 itojun 1699: logit("%s line %d: Deprecated option %s",
1.121 jakob 1700: filename, linenum, arg);
1701: while (arg)
1702: arg = strdelim(&cp);
1703: break;
1704:
1705: case sUnsupported:
1706: logit("%s line %d: Unsupported option %s",
1.94 markus 1707: filename, linenum, arg);
1708: while (arg)
1709: arg = strdelim(&cp);
1710: break;
1711:
1712: default:
1713: fatal("%s line %d: Missing handler for opcode %s (%d)",
1714: filename, linenum, arg, opcode);
1715: }
1716: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1717: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1718: filename, linenum, arg);
1719: return 0;
1720: }
1721:
1722: /* Reads the server configuration file. */
1.25 markus 1723:
1.94 markus 1724: void
1.134 djm 1725: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1726: {
1.229 dtucker 1727: char line[4096], *cp;
1.94 markus 1728: FILE *f;
1.229 dtucker 1729: int lineno = 0;
1.81 stevesk 1730:
1.134 djm 1731: debug2("%s: filename %s", __func__, filename);
1732: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1733: perror(filename);
1734: exit(1);
1735: }
1.134 djm 1736: buffer_clear(conf);
1737: while (fgets(line, sizeof(line), f)) {
1.229 dtucker 1738: lineno++;
1739: if (strlen(line) == sizeof(line) - 1)
1740: fatal("%s line %d too long", filename, lineno);
1.134 djm 1741: /*
1742: * Trim out comments and strip whitespace
1.135 deraadt 1743: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1744: * line numbers later for error messages
1745: */
1746: if ((cp = strchr(line, '#')) != NULL)
1747: memcpy(cp, "\n", 2);
1748: cp = line + strspn(line, " \t\r");
1749:
1750: buffer_append(conf, cp, strlen(cp));
1751: }
1752: buffer_append(conf, "\0", 1);
1753: fclose(f);
1754: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1755: }
1756:
1757: void
1.226 dtucker 1758: parse_server_match_config(ServerOptions *options,
1759: struct connection_info *connectinfo)
1.153 dtucker 1760: {
1761: ServerOptions mo;
1762:
1763: initialize_server_options(&mo);
1.226 dtucker 1764: parse_server_config(&mo, "reprocess config", &cfg, connectinfo);
1.168 dtucker 1765: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1766: }
1767:
1.226 dtucker 1768: int parse_server_match_testspec(struct connection_info *ci, char *spec)
1769: {
1770: char *p;
1771:
1772: while ((p = strsep(&spec, ",")) && *p != '\0') {
1773: if (strncmp(p, "addr=", 5) == 0) {
1774: ci->address = xstrdup(p + 5);
1775: } else if (strncmp(p, "host=", 5) == 0) {
1776: ci->host = xstrdup(p + 5);
1777: } else if (strncmp(p, "user=", 5) == 0) {
1778: ci->user = xstrdup(p + 5);
1779: } else if (strncmp(p, "laddr=", 6) == 0) {
1780: ci->laddress = xstrdup(p + 6);
1781: } else if (strncmp(p, "lport=", 6) == 0) {
1782: ci->lport = a2port(p + 6);
1783: if (ci->lport == -1) {
1784: fprintf(stderr, "Invalid port '%s' in test mode"
1785: " specification %s\n", p+6, p);
1786: return -1;
1787: }
1788: } else {
1789: fprintf(stderr, "Invalid test mode specification %s\n",
1790: p);
1791: return -1;
1792: }
1793: }
1794: return 0;
1795: }
1796:
1797: /*
1798: * returns 1 for a complete spec, 0 for partial spec and -1 for an
1799: * empty spec.
1800: */
1801: int server_match_spec_complete(struct connection_info *ci)
1802: {
1803: if (ci->user && ci->host && ci->address)
1804: return 1; /* complete */
1805: if (!ci->user && !ci->host && !ci->address)
1806: return -1; /* empty */
1807: return 0; /* partial */
1808: }
1809:
1.168 dtucker 1810: /*
1811: * Copy any supported values that are set.
1812: *
1.195 jj 1813: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1814: * array values that are not used pre-authentication, because any that we
1815: * do use must be explictly sent in mm_getpwnamallow().
1816: */
1.153 dtucker 1817: void
1.168 dtucker 1818: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1819: {
1.247 djm 1820: #define M_CP_INTOPT(n) do {\
1821: if (src->n != -1) \
1822: dst->n = src->n; \
1823: } while (0)
1824:
1.168 dtucker 1825: M_CP_INTOPT(password_authentication);
1826: M_CP_INTOPT(gss_authentication);
1827: M_CP_INTOPT(rsa_authentication);
1828: M_CP_INTOPT(pubkey_authentication);
1829: M_CP_INTOPT(kerberos_authentication);
1830: M_CP_INTOPT(hostbased_authentication);
1.209 djm 1831: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 1832: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 1833: M_CP_INTOPT(permit_root_login);
1.188 djm 1834: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1835:
1836: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 1837: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 1838: M_CP_INTOPT(allow_agent_forwarding);
1.209 djm 1839: M_CP_INTOPT(permit_tun);
1.251 millert 1840: M_CP_INTOPT(fwd_opts.gateway_ports);
1.168 dtucker 1841: M_CP_INTOPT(x11_display_offset);
1842: M_CP_INTOPT(x11_forwarding);
1843: M_CP_INTOPT(x11_use_localhost);
1.244 djm 1844: M_CP_INTOPT(permit_tty);
1.250 djm 1845: M_CP_INTOPT(permit_user_rc);
1.180 djm 1846: M_CP_INTOPT(max_sessions);
1.184 dtucker 1847: M_CP_INTOPT(max_authtries);
1.213 djm 1848: M_CP_INTOPT(ip_qos_interactive);
1849: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 1850: M_CP_INTOPT(rekey_limit);
1851: M_CP_INTOPT(rekey_interval);
1.247 djm 1852:
1853: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
1854: #define M_CP_STROPT(n) do {\
1855: if (src->n != NULL && dst->n != src->n) { \
1856: free(dst->n); \
1857: dst->n = src->n; \
1858: } \
1859: } while(0)
1860: #define M_CP_STRARRAYOPT(n, num_n) do {\
1861: if (src->num_n != 0) { \
1862: for (dst->num_n = 0; dst->num_n < src->num_n; dst->num_n++) \
1863: dst->n[dst->num_n] = xstrdup(src->n[dst->num_n]); \
1864: } \
1865: } while(0)
1.168 dtucker 1866:
1.218 djm 1867: /* See comment in servconf.h */
1868: COPY_MATCH_STRING_OPTS();
1.216 djm 1869:
1.217 dtucker 1870: /*
1871: * The only things that should be below this point are string options
1872: * which are only used after authentication.
1873: */
1.168 dtucker 1874: if (preauth)
1875: return;
1.219 djm 1876:
1.168 dtucker 1877: M_CP_STROPT(adm_forced_command);
1.176 djm 1878: M_CP_STROPT(chroot_directory);
1.153 dtucker 1879: }
1.168 dtucker 1880:
1881: #undef M_CP_INTOPT
1882: #undef M_CP_STROPT
1.219 djm 1883: #undef M_CP_STRARRAYOPT
1.153 dtucker 1884:
1885: void
1886: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1.226 dtucker 1887: struct connection_info *connectinfo)
1.134 djm 1888: {
1.153 dtucker 1889: int active, linenum, bad_options = 0;
1.136 dtucker 1890: char *cp, *obuf, *cbuf;
1.134 djm 1891:
1892: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1893:
1.136 dtucker 1894: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.226 dtucker 1895: active = connectinfo ? 0 : 1;
1.137 dtucker 1896: linenum = 1;
1.140 deraadt 1897: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1898: if (process_server_config_line(options, cp, filename,
1.226 dtucker 1899: linenum++, &active, connectinfo) != 0)
1.94 markus 1900: bad_options++;
1.1 deraadt 1901: }
1.239 djm 1902: free(obuf);
1.78 stevesk 1903: if (bad_options > 0)
1904: fatal("%s: terminating, %d bad configuration options",
1905: filename, bad_options);
1.182 dtucker 1906: }
1907:
1908: static const char *
1.221 djm 1909: fmt_multistate_int(int val, const struct multistate *m)
1910: {
1911: u_int i;
1912:
1913: for (i = 0; m[i].key != NULL; i++) {
1914: if (m[i].value == val)
1915: return m[i].key;
1916: }
1917: return "UNKNOWN";
1918: }
1919:
1920: static const char *
1.182 dtucker 1921: fmt_intarg(ServerOpCodes code, int val)
1922: {
1.221 djm 1923: if (val == -1)
1924: return "unset";
1925: switch (code) {
1926: case sAddressFamily:
1927: return fmt_multistate_int(val, multistate_addressfamily);
1928: case sPermitRootLogin:
1929: return fmt_multistate_int(val, multistate_permitrootlogin);
1930: case sGatewayPorts:
1931: return fmt_multistate_int(val, multistate_gatewayports);
1932: case sCompression:
1933: return fmt_multistate_int(val, multistate_compression);
1.222 djm 1934: case sUsePrivilegeSeparation:
1935: return fmt_multistate_int(val, multistate_privsep);
1.233 djm 1936: case sAllowTcpForwarding:
1937: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 1938: case sAllowStreamLocalForwarding:
1939: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 1940: case sFingerprintHash:
1941: return ssh_digest_alg_name(val);
1.221 djm 1942: case sProtocol:
1.182 dtucker 1943: switch (val) {
1944: case SSH_PROTO_1:
1945: return "1";
1946: case SSH_PROTO_2:
1947: return "2";
1948: case (SSH_PROTO_1|SSH_PROTO_2):
1949: return "2,1";
1950: default:
1951: return "UNKNOWN";
1952: }
1.221 djm 1953: default:
1954: switch (val) {
1955: case 0:
1956: return "no";
1957: case 1:
1958: return "yes";
1959: default:
1960: return "UNKNOWN";
1961: }
1.182 dtucker 1962: }
1963: }
1964:
1965: static const char *
1966: lookup_opcode_name(ServerOpCodes code)
1967: {
1968: u_int i;
1969:
1970: for (i = 0; keywords[i].name != NULL; i++)
1971: if (keywords[i].opcode == code)
1972: return(keywords[i].name);
1973: return "UNKNOWN";
1974: }
1975:
1976: static void
1977: dump_cfg_int(ServerOpCodes code, int val)
1978: {
1979: printf("%s %d\n", lookup_opcode_name(code), val);
1980: }
1981:
1982: static void
1.263 ! dtucker 1983: dump_cfg_oct(ServerOpCodes code, int val)
! 1984: {
! 1985: printf("%s 0%o\n", lookup_opcode_name(code), val);
! 1986: }
! 1987:
! 1988: static void
1.182 dtucker 1989: dump_cfg_fmtint(ServerOpCodes code, int val)
1990: {
1991: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1992: }
1993:
1994: static void
1995: dump_cfg_string(ServerOpCodes code, const char *val)
1996: {
1997: if (val == NULL)
1998: return;
1.257 djm 1999: printf("%s %s\n", lookup_opcode_name(code),
2000: val == NULL ? "none" : val);
1.182 dtucker 2001: }
2002:
2003: static void
2004: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2005: {
2006: u_int i;
2007:
2008: for (i = 0; i < count; i++)
1.219 djm 2009: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2010: }
2011:
2012: static void
2013: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2014: {
2015: u_int i;
2016:
1.261 dtucker 2017: if (count <= 0)
2018: return;
1.219 djm 2019: printf("%s", lookup_opcode_name(code));
2020: for (i = 0; i < count; i++)
2021: printf(" %s", vals[i]);
2022: printf("\n");
1.182 dtucker 2023: }
2024:
2025: void
2026: dump_config(ServerOptions *o)
2027: {
2028: u_int i;
2029: int ret;
2030: struct addrinfo *ai;
2031: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1.263 ! dtucker 2032: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2033:
2034: /* these are usually at the top of the config */
2035: for (i = 0; i < o->num_ports; i++)
2036: printf("port %d\n", o->ports[i]);
2037: dump_cfg_fmtint(sProtocol, o->protocol);
2038: dump_cfg_fmtint(sAddressFamily, o->address_family);
2039:
1.263 ! dtucker 2040: /*
! 2041: * ListenAddress must be after Port. add_one_listen_addr pushes
! 2042: * addresses onto a stack, so to maintain ordering we need to
! 2043: * print these in reverse order.
! 2044: */
1.182 dtucker 2045: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
2046: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
2047: sizeof(addr), port, sizeof(port),
2048: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
2049: error("getnameinfo failed: %.100s",
2050: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
2051: strerror(errno));
2052: } else {
1.263 ! dtucker 2053: laddr2 = laddr1;
1.182 dtucker 2054: if (ai->ai_family == AF_INET6)
1.263 ! dtucker 2055: xasprintf(&laddr1, "listenaddress [%s]:%s\n%s",
! 2056: addr, port, laddr2);
1.182 dtucker 2057: else
1.263 ! dtucker 2058: xasprintf(&laddr1, "listenaddress %s:%s\n%s",
! 2059: addr, port, laddr2);
! 2060: free(laddr2);
1.182 dtucker 2061: }
2062: }
1.263 ! dtucker 2063: printf("%s", laddr1);
! 2064: free(laddr1);
1.182 dtucker 2065:
2066: /* integer arguments */
2067: dump_cfg_int(sServerKeyBits, o->server_key_bits);
2068: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2069: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
2070: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2071: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2072: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2073: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2074: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 ! dtucker 2075: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2076:
2077: /* formatted integer arguments */
2078: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2079: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2080: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2081: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
2082: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2083: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2084: o->hostbased_uses_name_from_packet_only);
2085: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
2086: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2087: #ifdef KRB5
1.182 dtucker 2088: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2089: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2090: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2091: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2092: #endif
2093: #ifdef GSSAPI
1.182 dtucker 2094: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2095: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2096: #endif
1.182 dtucker 2097: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2098: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2099: o->kbd_interactive_authentication);
2100: dump_cfg_fmtint(sChallengeResponseAuthentication,
2101: o->challenge_response_authentication);
2102: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2103: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2104: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2105: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2106: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2107: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2108: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2109: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2110: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2111: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2112: dump_cfg_fmtint(sUseLogin, o->use_login);
2113: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2114: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2115: dump_cfg_fmtint(sUseDNS, o->use_dns);
2116: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2117: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.251 millert 2118: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.182 dtucker 2119: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1.256 djm 2120: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.182 dtucker 2121:
2122: /* string arguments */
2123: dump_cfg_string(sPidFile, o->pid_file);
2124: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2125: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2126: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2127: dump_cfg_string(sBanner, o->banner);
2128: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2129: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2130: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2131: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2132: dump_cfg_string(sAuthorizedPrincipalsFile,
2133: o->authorized_principals_file);
1.261 dtucker 2134: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2135: ? "none" : o->version_addendum);
1.231 djm 2136: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2137: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.240 markus 2138: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2139: dump_cfg_string(sKexAlgorithms,
1.253 djm 2140: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.258 djm 2141: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2142: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
2143: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2144: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.182 dtucker 2145:
2146: /* string arguments requiring a lookup */
2147: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2148: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2149:
2150: /* string array arguments */
1.219 djm 2151: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2152: o->authorized_keys_files);
1.182 dtucker 2153: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2154: o->host_key_files);
1.261 dtucker 2155: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2156: o->host_cert_files);
1.182 dtucker 2157: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2158: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2159: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2160: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2161: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.232 djm 2162: dump_cfg_strarray_oneline(sAuthenticationMethods,
2163: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2164:
2165: /* other arguments */
2166: for (i = 0; i < o->num_subsystems; i++)
2167: printf("subsystem %s %s\n", o->subsystem_name[i],
2168: o->subsystem_args[i]);
2169:
2170: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2171: o->max_startups_rate, o->max_startups);
2172:
2173: for (i = 0; tunmode_desc[i].val != -1; i++)
2174: if (tunmode_desc[i].val == o->permit_tun) {
2175: s = tunmode_desc[i].text;
2176: break;
2177: }
2178: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2179:
1.214 stevesk 2180: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2181: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2182:
1.241 djm 2183: printf("rekeylimit %lld %d\n", (long long)o->rekey_limit,
2184: o->rekey_interval);
1.182 dtucker 2185:
2186: channel_print_adm_permitted_opens();
1.1 deraadt 2187: }
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