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