Annotation of src/usr.bin/ssh/servconf.c, Revision 1.266
1.226 dtucker 1:
1.266 ! dtucker 2: /* $OpenBSD: servconf.c,v 1.265 2015/04/27 21:42:48 djm Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.154 stevesk 17:
1.213 djm 18: #include <netinet/in.h>
19: #include <netinet/ip.h>
20:
1.235 dtucker 21: #include <ctype.h>
1.154 stevesk 22: #include <netdb.h>
1.165 dtucker 23: #include <pwd.h>
1.162 stevesk 24: #include <stdio.h>
1.161 stevesk 25: #include <stdlib.h>
1.160 stevesk 26: #include <string.h>
1.164 deraadt 27: #include <signal.h>
1.155 stevesk 28: #include <unistd.h>
1.259 deraadt 29: #include <limits.h>
1.164 deraadt 30: #include <stdarg.h>
1.182 dtucker 31: #include <errno.h>
1.236 dtucker 32: #include <util.h>
1.1 deraadt 33:
1.164 deraadt 34: #include "xmalloc.h"
1.1 deraadt 35: #include "ssh.h"
1.62 markus 36: #include "log.h"
1.164 deraadt 37: #include "buffer.h"
1.251 millert 38: #include "misc.h"
1.1 deraadt 39: #include "servconf.h"
1.33 markus 40: #include "compat.h"
1.60 markus 41: #include "pathnames.h"
1.62 markus 42: #include "cipher.h"
1.164 deraadt 43: #include "key.h"
1.66 markus 44: #include "kex.h"
45: #include "mac.h"
1.153 dtucker 46: #include "match.h"
1.156 dtucker 47: #include "channels.h"
1.165 dtucker 48: #include "groupaccess.h"
1.226 dtucker 49: #include "canohost.h"
50: #include "packet.h"
1.232 djm 51: #include "hostfile.h"
52: #include "auth.h"
1.252 djm 53: #include "myproposal.h"
1.256 djm 54: #include "digest.h"
1.1 deraadt 55:
1.194 djm 56: static void add_listen_addr(ServerOptions *, char *, int);
57: static void add_one_listen_addr(ServerOptions *, char *, int);
1.29 markus 58:
1.102 provos 59: /* Use of privilege separation or not */
60: extern int use_privsep;
1.153 dtucker 61: extern Buffer cfg;
1.62 markus 62:
1.1 deraadt 63: /* Initializes the server options to their default values. */
64:
1.34 markus 65: void
1.25 markus 66: initialize_server_options(ServerOptions *options)
1.1 deraadt 67: {
1.25 markus 68: memset(options, 0, sizeof(*options));
1.29 markus 69: options->num_ports = 0;
70: options->ports_from_cmdline = 0;
1.266 ! dtucker 71: options->queued_listen_addrs = NULL;
! 72: options->num_queued_listens = 0;
1.29 markus 73: options->listen_addrs = NULL;
1.138 djm 74: options->address_family = -1;
1.54 markus 75: options->num_host_key_files = 0;
1.203 djm 76: options->num_host_cert_files = 0;
1.240 markus 77: options->host_key_agent = NULL;
1.36 markus 78: options->pid_file = NULL;
1.25 markus 79: options->server_key_bits = -1;
80: options->login_grace_time = -1;
81: options->key_regeneration_time = -1;
1.67 markus 82: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 83: options->ignore_rhosts = -1;
84: options->ignore_user_known_hosts = -1;
85: options->print_motd = -1;
1.72 stevesk 86: options->print_lastlog = -1;
1.25 markus 87: options->x11_forwarding = -1;
88: options->x11_display_offset = -1;
1.99 stevesk 89: options->x11_use_localhost = -1;
1.244 djm 90: options->permit_tty = -1;
1.250 djm 91: options->permit_user_rc = -1;
1.42 markus 92: options->xauth_location = NULL;
1.25 markus 93: options->strict_modes = -1;
1.129 markus 94: options->tcp_keep_alive = -1;
1.101 markus 95: options->log_facility = SYSLOG_FACILITY_NOT_SET;
96: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.25 markus 97: options->rhosts_rsa_authentication = -1;
1.75 markus 98: options->hostbased_authentication = -1;
99: options->hostbased_uses_name_from_packet_only = -1;
1.258 djm 100: options->hostbased_key_types = NULL;
1.25 markus 101: options->rsa_authentication = -1;
1.54 markus 102: options->pubkey_authentication = -1;
1.258 djm 103: options->pubkey_key_types = NULL;
1.25 markus 104: options->kerberos_authentication = -1;
105: options->kerberos_or_local_passwd = -1;
106: options->kerberos_ticket_cleanup = -1;
1.130 jakob 107: options->kerberos_get_afs_token = -1;
1.125 markus 108: options->gss_authentication=-1;
109: options->gss_cleanup_creds = -1;
1.25 markus 110: options->password_authentication = -1;
1.52 markus 111: options->kbd_interactive_authentication = -1;
1.80 markus 112: options->challenge_response_authentication = -1;
1.25 markus 113: options->permit_empty_passwd = -1;
1.113 markus 114: options->permit_user_env = -1;
1.25 markus 115: options->use_login = -1;
1.111 markus 116: options->compression = -1;
1.235 dtucker 117: options->rekey_limit = -1;
118: options->rekey_interval = -1;
1.53 markus 119: options->allow_tcp_forwarding = -1;
1.251 millert 120: options->allow_streamlocal_forwarding = -1;
1.178 pyr 121: options->allow_agent_forwarding = -1;
1.25 markus 122: options->num_allow_users = 0;
123: options->num_deny_users = 0;
124: options->num_allow_groups = 0;
125: options->num_deny_groups = 0;
1.33 markus 126: options->ciphers = NULL;
1.66 markus 127: options->macs = NULL;
1.211 djm 128: options->kex_algorithms = NULL;
1.33 markus 129: options->protocol = SSH_PROTO_UNKNOWN;
1.251 millert 130: options->fwd_opts.gateway_ports = -1;
131: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
132: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 133: options->num_subsystems = 0;
1.50 markus 134: options->max_startups_begin = -1;
135: options->max_startups_rate = -1;
1.46 markus 136: options->max_startups = -1;
1.133 dtucker 137: options->max_authtries = -1;
1.180 djm 138: options->max_sessions = -1;
1.57 markus 139: options->banner = NULL;
1.122 markus 140: options->use_dns = -1;
1.77 beck 141: options->client_alive_interval = -1;
142: options->client_alive_count_max = -1;
1.219 djm 143: options->num_authkeys_files = 0;
1.131 djm 144: options->num_accept_env = 0;
1.145 reyk 145: options->permit_tun = -1;
1.159 dtucker 146: options->num_permitted_opens = -1;
1.158 dtucker 147: options->adm_forced_command = NULL;
1.176 djm 148: options->chroot_directory = NULL;
1.231 djm 149: options->authorized_keys_command = NULL;
150: options->authorized_keys_command_user = NULL;
1.204 djm 151: options->revoked_keys_file = NULL;
152: options->trusted_user_ca_keys = NULL;
1.208 djm 153: options->authorized_principals_file = NULL;
1.213 djm 154: options->ip_qos_interactive = -1;
155: options->ip_qos_bulk = -1;
1.225 djm 156: options->version_addendum = NULL;
1.256 djm 157: options->fingerprint_hash = -1;
1.1 deraadt 158: }
159:
1.257 djm 160: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
161: static int
162: option_clear_or_none(const char *o)
163: {
164: return o == NULL || strcasecmp(o, "none") == 0;
165: }
166:
1.34 markus 167: void
1.25 markus 168: fill_default_server_options(ServerOptions *options)
1.1 deraadt 169: {
1.257 djm 170: int i;
171:
1.54 markus 172: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 173: options->protocol = SSH_PROTO_2;
1.54 markus 174: if (options->num_host_key_files == 0) {
175: /* fill default hostkeys for protocols */
176: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 177: options->host_key_files[options->num_host_key_files++] =
178: _PATH_HOST_KEY_FILE;
179: if (options->protocol & SSH_PROTO_2) {
180: options->host_key_files[options->num_host_key_files++] =
181: _PATH_HOST_RSA_KEY_FILE;
182: options->host_key_files[options->num_host_key_files++] =
183: _PATH_HOST_DSA_KEY_FILE;
1.210 naddy 184: options->host_key_files[options->num_host_key_files++] =
185: _PATH_HOST_ECDSA_KEY_FILE;
1.248 markus 186: options->host_key_files[options->num_host_key_files++] =
187: _PATH_HOST_ED25519_KEY_FILE;
1.97 stevesk 188: }
1.54 markus 189: }
1.203 djm 190: /* No certificates by default */
1.29 markus 191: if (options->num_ports == 0)
192: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 ! dtucker 193: if (options->address_family == -1)
! 194: options->address_family = AF_UNSPEC;
1.29 markus 195: if (options->listen_addrs == NULL)
1.76 stevesk 196: add_listen_addr(options, NULL, 0);
1.36 markus 197: if (options->pid_file == NULL)
1.257 djm 198: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.25 markus 199: if (options->server_key_bits == -1)
1.185 djm 200: options->server_key_bits = 1024;
1.25 markus 201: if (options->login_grace_time == -1)
1.115 stevesk 202: options->login_grace_time = 120;
1.25 markus 203: if (options->key_regeneration_time == -1)
204: options->key_regeneration_time = 3600;
1.67 markus 205: if (options->permit_root_login == PERMIT_NOT_SET)
1.265 djm 206: options->permit_root_login = PERMIT_NO;
1.25 markus 207: if (options->ignore_rhosts == -1)
1.30 markus 208: options->ignore_rhosts = 1;
1.25 markus 209: if (options->ignore_user_known_hosts == -1)
210: options->ignore_user_known_hosts = 0;
211: if (options->print_motd == -1)
212: options->print_motd = 1;
1.72 stevesk 213: if (options->print_lastlog == -1)
214: options->print_lastlog = 1;
1.25 markus 215: if (options->x11_forwarding == -1)
1.30 markus 216: options->x11_forwarding = 0;
1.25 markus 217: if (options->x11_display_offset == -1)
1.30 markus 218: options->x11_display_offset = 10;
1.99 stevesk 219: if (options->x11_use_localhost == -1)
220: options->x11_use_localhost = 1;
1.42 markus 221: if (options->xauth_location == NULL)
1.257 djm 222: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 223: if (options->permit_tty == -1)
224: options->permit_tty = 1;
1.250 djm 225: if (options->permit_user_rc == -1)
226: options->permit_user_rc = 1;
1.25 markus 227: if (options->strict_modes == -1)
228: options->strict_modes = 1;
1.129 markus 229: if (options->tcp_keep_alive == -1)
230: options->tcp_keep_alive = 1;
1.101 markus 231: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 232: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 233: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 234: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 235: if (options->rhosts_rsa_authentication == -1)
1.30 markus 236: options->rhosts_rsa_authentication = 0;
1.75 markus 237: if (options->hostbased_authentication == -1)
238: options->hostbased_authentication = 0;
239: if (options->hostbased_uses_name_from_packet_only == -1)
240: options->hostbased_uses_name_from_packet_only = 0;
1.258 djm 241: if (options->hostbased_key_types == NULL)
242: options->hostbased_key_types = xstrdup("*");
1.25 markus 243: if (options->rsa_authentication == -1)
244: options->rsa_authentication = 1;
1.54 markus 245: if (options->pubkey_authentication == -1)
246: options->pubkey_authentication = 1;
1.258 djm 247: if (options->pubkey_key_types == NULL)
248: options->pubkey_key_types = xstrdup("*");
1.25 markus 249: if (options->kerberos_authentication == -1)
1.107 markus 250: options->kerberos_authentication = 0;
1.25 markus 251: if (options->kerberos_or_local_passwd == -1)
252: options->kerberos_or_local_passwd = 1;
253: if (options->kerberos_ticket_cleanup == -1)
254: options->kerberos_ticket_cleanup = 1;
1.130 jakob 255: if (options->kerberos_get_afs_token == -1)
256: options->kerberos_get_afs_token = 0;
1.125 markus 257: if (options->gss_authentication == -1)
258: options->gss_authentication = 0;
259: if (options->gss_cleanup_creds == -1)
260: options->gss_cleanup_creds = 1;
1.25 markus 261: if (options->password_authentication == -1)
262: options->password_authentication = 1;
1.52 markus 263: if (options->kbd_interactive_authentication == -1)
264: options->kbd_interactive_authentication = 0;
1.80 markus 265: if (options->challenge_response_authentication == -1)
266: options->challenge_response_authentication = 1;
1.25 markus 267: if (options->permit_empty_passwd == -1)
1.30 markus 268: options->permit_empty_passwd = 0;
1.113 markus 269: if (options->permit_user_env == -1)
270: options->permit_user_env = 0;
1.25 markus 271: if (options->use_login == -1)
272: options->use_login = 0;
1.111 markus 273: if (options->compression == -1)
1.143 markus 274: options->compression = COMP_DELAYED;
1.235 dtucker 275: if (options->rekey_limit == -1)
276: options->rekey_limit = 0;
277: if (options->rekey_interval == -1)
278: options->rekey_interval = 0;
1.53 markus 279: if (options->allow_tcp_forwarding == -1)
1.233 djm 280: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 281: if (options->allow_streamlocal_forwarding == -1)
282: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 283: if (options->allow_agent_forwarding == -1)
284: options->allow_agent_forwarding = 1;
1.251 millert 285: if (options->fwd_opts.gateway_ports == -1)
286: options->fwd_opts.gateway_ports = 0;
1.46 markus 287: if (options->max_startups == -1)
1.234 dtucker 288: options->max_startups = 100;
1.50 markus 289: if (options->max_startups_rate == -1)
1.234 dtucker 290: options->max_startups_rate = 30; /* 30% */
1.50 markus 291: if (options->max_startups_begin == -1)
1.234 dtucker 292: options->max_startups_begin = 10;
1.133 dtucker 293: if (options->max_authtries == -1)
294: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 295: if (options->max_sessions == -1)
296: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 297: if (options->use_dns == -1)
1.260 deraadt 298: options->use_dns = 0;
1.77 beck 299: if (options->client_alive_interval == -1)
1.95 deraadt 300: options->client_alive_interval = 0;
1.77 beck 301: if (options->client_alive_count_max == -1)
302: options->client_alive_count_max = 3;
1.219 djm 303: if (options->num_authkeys_files == 0) {
304: options->authorized_keys_files[options->num_authkeys_files++] =
305: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS);
306: options->authorized_keys_files[options->num_authkeys_files++] =
307: xstrdup(_PATH_SSH_USER_PERMITTED_KEYS2);
308: }
1.145 reyk 309: if (options->permit_tun == -1)
1.146 reyk 310: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 311: if (options->ip_qos_interactive == -1)
312: options->ip_qos_interactive = IPTOS_LOWDELAY;
313: if (options->ip_qos_bulk == -1)
314: options->ip_qos_bulk = IPTOS_THROUGHPUT;
1.225 djm 315: if (options->version_addendum == NULL)
316: options->version_addendum = xstrdup("");
1.251 millert 317: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
318: options->fwd_opts.streamlocal_bind_mask = 0177;
319: if (options->fwd_opts.streamlocal_bind_unlink == -1)
320: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 321: if (options->fingerprint_hash == -1)
322: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.110 markus 323: /* Turn privilege separation on by default */
1.102 provos 324: if (use_privsep == -1)
1.228 djm 325: use_privsep = PRIVSEP_NOSANDBOX;
1.257 djm 326:
327: #define CLEAR_ON_NONE(v) \
328: do { \
329: if (option_clear_or_none(v)) { \
330: free(v); \
331: v = NULL; \
332: } \
333: } while(0)
334: CLEAR_ON_NONE(options->pid_file);
335: CLEAR_ON_NONE(options->xauth_location);
336: CLEAR_ON_NONE(options->banner);
337: CLEAR_ON_NONE(options->trusted_user_ca_keys);
338: CLEAR_ON_NONE(options->revoked_keys_file);
339: for (i = 0; i < options->num_host_key_files; i++)
340: CLEAR_ON_NONE(options->host_key_files[i]);
341: for (i = 0; i < options->num_host_cert_files; i++)
342: CLEAR_ON_NONE(options->host_cert_files[i]);
343: #undef CLEAR_ON_NONE
1.1 deraadt 344: }
345:
346: /* Keyword tokens. */
1.25 markus 347: typedef enum {
348: sBadOption, /* == unknown option */
1.258 djm 349: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime,
350: sKeyRegenerationTime, sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 351: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 352: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 353: sKerberosGetAFSToken,
1.123 markus 354: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 355: sPasswordAuthentication, sKbdInteractiveAuthentication,
356: sListenAddress, sAddressFamily,
1.72 stevesk 357: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 358: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 359: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 360: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.235 dtucker 361: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 362: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.258 djm 363: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
364: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 365: sBanner, sUseDNS, sHostbasedAuthentication,
1.258 djm 366: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
367: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.145 reyk 368: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 369: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 370: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.249 djm 371: sHostCertificate,
1.208 djm 372: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.225 djm 373: sKexAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 374: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 375: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 376: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.256 djm 377: sAllowStreamLocalForwarding, sFingerprintHash,
1.121 jakob 378: sDeprecated, sUnsupported
1.1 deraadt 379: } ServerOpCodes;
380:
1.153 dtucker 381: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
382: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
383: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
384:
1.1 deraadt 385: /* Textual representation of the tokens. */
1.25 markus 386: static struct {
387: const char *name;
388: ServerOpCodes opcode;
1.153 dtucker 389: u_int flags;
1.25 markus 390: } keywords[] = {
1.153 dtucker 391: { "port", sPort, SSHCFG_GLOBAL },
392: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
393: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 394: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 395: { "pidfile", sPidFile, SSHCFG_GLOBAL },
396: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
397: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
398: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 399: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 400: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
401: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
402: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 403: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
404: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 405: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.258 djm 406: { "hostbasedacceptedkeytypes", sHostbasedAcceptedKeyTypes, SSHCFG_ALL },
1.168 dtucker 407: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
408: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.258 djm 409: { "pubkeyacceptedkeytypes", sPubkeyAcceptedKeyTypes, SSHCFG_ALL },
1.153 dtucker 410: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 411: #ifdef KRB5
1.168 dtucker 412: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 413: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
414: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
415: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 416: #else
1.168 dtucker 417: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 418: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
419: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
420: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 421: #endif
1.153 dtucker 422: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
423: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 424: #ifdef GSSAPI
1.168 dtucker 425: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 426: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 427: #else
1.168 dtucker 428: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 429: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 430: #endif
1.168 dtucker 431: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
432: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 433: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 434: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
435: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
436: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
437: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
438: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
439: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
440: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
441: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 442: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
443: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
444: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 445: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
446: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 447: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 448: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
449: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
450: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 451: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 452: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
453: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
454: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 455: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 456: { "allowusers", sAllowUsers, SSHCFG_ALL },
457: { "denyusers", sDenyUsers, SSHCFG_ALL },
458: { "allowgroups", sAllowGroups, SSHCFG_ALL },
459: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 460: { "ciphers", sCiphers, SSHCFG_GLOBAL },
461: { "macs", sMacs, SSHCFG_GLOBAL },
462: { "protocol", sProtocol, SSHCFG_GLOBAL },
463: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
464: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
465: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 466: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 467: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 468: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 469: { "usedns", sUseDNS, SSHCFG_GLOBAL },
470: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
471: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
472: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
473: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
1.209 djm 474: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 475: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.153 dtucker 476: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
1.227 markus 477: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.209 djm 478: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 479: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 480: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 481: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 482: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 483: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 484: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 485: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 486: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
487: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 488: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 489: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.213 djm 490: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 491: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
492: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.225 djm 493: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 494: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 495: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
496: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
497: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 498: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.153 dtucker 499: { NULL, sBadOption, 0 }
1.1 deraadt 500: };
501:
1.182 dtucker 502: static struct {
503: int val;
504: char *text;
505: } tunmode_desc[] = {
506: { SSH_TUNMODE_NO, "no" },
507: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
508: { SSH_TUNMODE_ETHERNET, "ethernet" },
509: { SSH_TUNMODE_YES, "yes" },
510: { -1, NULL }
511: };
512:
1.27 markus 513: /*
1.73 stevesk 514: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 515: */
1.1 deraadt 516:
1.34 markus 517: static ServerOpCodes
1.25 markus 518: parse_token(const char *cp, const char *filename,
1.153 dtucker 519: int linenum, u_int *flags)
1.1 deraadt 520: {
1.55 markus 521: u_int i;
1.1 deraadt 522:
1.25 markus 523: for (i = 0; keywords[i].name; i++)
1.153 dtucker 524: if (strcasecmp(cp, keywords[i].name) == 0) {
525: *flags = keywords[i].flags;
1.25 markus 526: return keywords[i].opcode;
1.153 dtucker 527: }
1.25 markus 528:
1.78 stevesk 529: error("%s: line %d: Bad configuration option: %s",
530: filename, linenum, cp);
1.25 markus 531: return sBadOption;
1.1 deraadt 532: }
533:
1.202 djm 534: char *
535: derelativise_path(const char *path)
536: {
1.259 deraadt 537: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 538:
1.257 djm 539: if (strcasecmp(path, "none") == 0)
540: return xstrdup("none");
1.202 djm 541: expanded = tilde_expand_filename(path, getuid());
542: if (*expanded == '/')
543: return expanded;
1.207 djm 544: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 545: fatal("%s: getcwd: %s", __func__, strerror(errno));
546: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 547: free(expanded);
1.202 djm 548: return ret;
549: }
550:
1.84 itojun 551: static void
1.194 djm 552: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 553: {
1.142 djm 554: u_int i;
1.74 stevesk 555:
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:
1.266 ! dtucker 585: /*
! 586: * Queue a ListenAddress to be processed once we have all of the Ports
! 587: * and AddressFamily options.
! 588: */
! 589: static void
! 590: queue_listen_addr(ServerOptions *options, char *addr, int port)
! 591: {
! 592: options->queued_listen_addrs = xreallocarray(
! 593: options->queued_listen_addrs, options->num_queued_listens + 1,
! 594: sizeof(addr));
! 595: options->queued_listen_ports = xreallocarray(
! 596: options->queued_listen_ports, options->num_queued_listens + 1,
! 597: sizeof(port));
! 598: options->queued_listen_addrs[options->num_queued_listens] =
! 599: xstrdup(addr);
! 600: options->queued_listen_ports[options->num_queued_listens] = port;
! 601: options->num_queued_listens++;
! 602: }
! 603:
! 604: /*
! 605: * Process queued (text) ListenAddress entries.
! 606: */
! 607: static void
! 608: process_queued_listen_addrs(ServerOptions *options)
! 609: {
! 610: u_int i;
! 611:
! 612: if (options->num_ports == 0)
! 613: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
! 614: if (options->address_family == -1)
! 615: options->address_family = AF_UNSPEC;
! 616:
! 617: for (i = 0; i < options->num_queued_listens; i++) {
! 618: add_listen_addr(options, options->queued_listen_addrs[i],
! 619: options->queued_listen_ports[i]);
! 620: free(options->queued_listen_addrs[i]);
! 621: options->queued_listen_addrs[i] = NULL;
! 622: }
! 623: free(options->queued_listen_addrs);
! 624: options->queued_listen_addrs = NULL;
! 625: free(options->queued_listen_ports);
! 626: options->queued_listen_ports = NULL;
! 627: options->num_queued_listens = 0;
! 628: }
! 629:
1.226 dtucker 630: struct connection_info *
631: get_connection_info(int populate, int use_dns)
632: {
633: static struct connection_info ci;
634:
635: if (!populate)
636: return &ci;
637: ci.host = get_canonical_hostname(use_dns);
638: ci.address = get_remote_ipaddr();
639: ci.laddress = get_local_ipaddr(packet_get_connection_in());
640: ci.lport = get_local_port();
641: return &ci;
642: }
643:
1.153 dtucker 644: /*
645: * The strategy for the Match blocks is that the config file is parsed twice.
646: *
647: * The first time is at startup. activep is initialized to 1 and the
648: * directives in the global context are processed and acted on. Hitting a
649: * Match directive unsets activep and the directives inside the block are
650: * checked for syntax only.
651: *
652: * The second time is after a connection has been established but before
653: * authentication. activep is initialized to 2 and global config directives
654: * are ignored since they have already been processed. If the criteria in a
655: * Match block is met, activep is set and the subsequent directives
656: * processed and actioned until EOF or another Match block unsets it. Any
657: * options set are copied into the main server config.
658: *
659: * Potential additions/improvements:
660: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
661: *
662: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
663: * Match Address 192.168.0.*
664: * Tag trusted
665: * Match Group wheel
666: * Tag trusted
667: * Match Tag trusted
668: * AllowTcpForwarding yes
669: * GatewayPorts clientspecified
670: * [...]
671: *
672: * - Add a PermittedChannelRequests directive
673: * Match Group shell
674: * PermittedChannelRequests session,forwarded-tcpip
675: */
676:
677: static int
1.165 dtucker 678: match_cfg_line_group(const char *grps, int line, const char *user)
679: {
680: int result = 0;
681: struct passwd *pw;
682:
683: if (user == NULL)
684: goto out;
685:
686: if ((pw = getpwnam(user)) == NULL) {
687: debug("Can't match group at line %d because user %.100s does "
688: "not exist", line, user);
689: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
690: debug("Can't Match group because user %.100s not in any group "
691: "at line %d", user, line);
1.186 djm 692: } else if (ga_match_pattern_list(grps) != 1) {
693: debug("user %.100s does not match group list %.100s at line %d",
694: user, grps, line);
1.165 dtucker 695: } else {
1.186 djm 696: debug("user %.100s matched group list %.100s at line %d", user,
697: grps, line);
1.165 dtucker 698: result = 1;
699: }
700: out:
701: ga_free();
702: return result;
703: }
704:
1.226 dtucker 705: /*
1.230 dtucker 706: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 707: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 708: * not match.
1.226 dtucker 709: */
1.165 dtucker 710: static int
1.226 dtucker 711: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 712: {
1.243 dtucker 713: int result = 1, attributes = 0, port;
1.153 dtucker 714: char *arg, *attrib, *cp = *condition;
715: size_t len;
716:
1.226 dtucker 717: if (ci == NULL)
1.153 dtucker 718: debug3("checking syntax for 'Match %s'", cp);
719: else
1.226 dtucker 720: debug3("checking match for '%s' user %s host %s addr %s "
721: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
722: ci->host ? ci->host : "(null)",
723: ci->address ? ci->address : "(null)",
724: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 725:
726: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 727: attributes++;
728: if (strcasecmp(attrib, "all") == 0) {
729: if (attributes != 1 ||
730: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
731: error("'all' cannot be combined with other "
732: "Match attributes");
733: return -1;
734: }
735: *condition = cp;
736: return 1;
737: }
1.153 dtucker 738: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
739: error("Missing Match criteria for %s", attrib);
740: return -1;
741: }
742: len = strlen(arg);
743: if (strcasecmp(attrib, "user") == 0) {
1.226 dtucker 744: if (ci == NULL || ci->user == NULL) {
1.153 dtucker 745: result = 0;
746: continue;
747: }
1.226 dtucker 748: if (match_pattern_list(ci->user, arg, len, 0) != 1)
1.153 dtucker 749: result = 0;
750: else
751: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 752: "line %d", ci->user, arg, line);
1.165 dtucker 753: } else if (strcasecmp(attrib, "group") == 0) {
1.226 dtucker 754: if (ci == NULL || ci->user == NULL) {
755: result = 0;
756: continue;
757: }
758: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 759: case -1:
760: return -1;
761: case 0:
762: result = 0;
763: }
1.153 dtucker 764: } else if (strcasecmp(attrib, "host") == 0) {
1.226 dtucker 765: if (ci == NULL || ci->host == NULL) {
1.153 dtucker 766: result = 0;
767: continue;
768: }
1.226 dtucker 769: if (match_hostname(ci->host, arg, len) != 1)
1.153 dtucker 770: result = 0;
771: else
772: debug("connection from %.100s matched 'Host "
1.226 dtucker 773: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 774: } else if (strcasecmp(attrib, "address") == 0) {
1.226 dtucker 775: if (ci == NULL || ci->address == NULL) {
776: result = 0;
777: continue;
778: }
779: switch (addr_match_list(ci->address, arg)) {
1.181 djm 780: case 1:
781: debug("connection from %.100s matched 'Address "
1.226 dtucker 782: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 783: break;
784: case 0:
1.183 djm 785: case -1:
1.153 dtucker 786: result = 0;
1.181 djm 787: break;
1.183 djm 788: case -2:
1.181 djm 789: return -1;
1.153 dtucker 790: }
1.226 dtucker 791: } else if (strcasecmp(attrib, "localaddress") == 0){
792: if (ci == NULL || ci->laddress == NULL) {
793: result = 0;
794: continue;
795: }
796: switch (addr_match_list(ci->laddress, arg)) {
797: case 1:
798: debug("connection from %.100s matched "
799: "'LocalAddress %.100s' at line %d",
800: ci->laddress, arg, line);
801: break;
802: case 0:
803: case -1:
804: result = 0;
805: break;
806: case -2:
807: return -1;
808: }
809: } else if (strcasecmp(attrib, "localport") == 0) {
810: if ((port = a2port(arg)) == -1) {
811: error("Invalid LocalPort '%s' on Match line",
812: arg);
813: return -1;
814: }
815: if (ci == NULL || ci->lport == 0) {
816: result = 0;
817: continue;
818: }
819: /* TODO support port lists */
820: if (port == ci->lport)
821: debug("connection from %.100s matched "
822: "'LocalPort %d' at line %d",
823: ci->laddress, port, line);
824: else
825: result = 0;
1.153 dtucker 826: } else {
827: error("Unsupported Match attribute %s", attrib);
828: return -1;
829: }
1.243 dtucker 830: }
831: if (attributes == 0) {
832: error("One or more attributes required for Match");
833: return -1;
1.153 dtucker 834: }
1.226 dtucker 835: if (ci != NULL)
1.153 dtucker 836: debug3("match %sfound", result ? "" : "not ");
837: *condition = cp;
838: return result;
839: }
840:
1.158 dtucker 841: #define WHITESPACE " \t\r\n"
842:
1.220 djm 843: /* Multistate option parsing */
844: struct multistate {
845: char *key;
846: int value;
847: };
848: static const struct multistate multistate_addressfamily[] = {
849: { "inet", AF_INET },
850: { "inet6", AF_INET6 },
851: { "any", AF_UNSPEC },
852: { NULL, -1 }
853: };
854: static const struct multistate multistate_permitrootlogin[] = {
855: { "without-password", PERMIT_NO_PASSWD },
856: { "forced-commands-only", PERMIT_FORCED_ONLY },
857: { "yes", PERMIT_YES },
858: { "no", PERMIT_NO },
859: { NULL, -1 }
860: };
861: static const struct multistate multistate_compression[] = {
862: { "delayed", COMP_DELAYED },
863: { "yes", COMP_ZLIB },
864: { "no", COMP_NONE },
865: { NULL, -1 }
866: };
867: static const struct multistate multistate_gatewayports[] = {
868: { "clientspecified", 2 },
869: { "yes", 1 },
870: { "no", 0 },
871: { NULL, -1 }
872: };
1.222 djm 873: static const struct multistate multistate_privsep[] = {
1.228 djm 874: { "yes", PRIVSEP_NOSANDBOX },
875: { "sandbox", PRIVSEP_ON },
876: { "nosandbox", PRIVSEP_NOSANDBOX },
1.222 djm 877: { "no", PRIVSEP_OFF },
878: { NULL, -1 }
879: };
1.233 djm 880: static const struct multistate multistate_tcpfwd[] = {
881: { "yes", FORWARD_ALLOW },
882: { "all", FORWARD_ALLOW },
883: { "no", FORWARD_DENY },
884: { "remote", FORWARD_REMOTE },
885: { "local", FORWARD_LOCAL },
886: { NULL, -1 }
887: };
1.220 djm 888:
1.94 markus 889: int
890: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 891: const char *filename, int linenum, int *activep,
892: struct connection_info *connectinfo)
1.1 deraadt 893: {
1.238 dtucker 894: char *cp, **charptr, *arg, *p;
1.237 dtucker 895: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 896: SyslogFacility *log_facility_ptr;
897: LogLevel *log_level_ptr;
1.25 markus 898: ServerOpCodes opcode;
1.153 dtucker 899: u_int i, flags = 0;
1.151 djm 900: size_t len;
1.237 dtucker 901: long long val64;
1.220 djm 902: const struct multistate *multistate_ptr;
1.25 markus 903:
1.94 markus 904: cp = line;
1.148 dtucker 905: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 906: return 0;
1.94 markus 907: /* Ignore leading whitespace */
908: if (*arg == '\0')
909: arg = strdelim(&cp);
910: if (!arg || !*arg || *arg == '#')
911: return 0;
912: intptr = NULL;
913: charptr = NULL;
1.153 dtucker 914: opcode = parse_token(arg, filename, linenum, &flags);
915:
916: if (activep == NULL) { /* We are processing a command line directive */
917: cmdline = 1;
918: activep = &cmdline;
919: }
920: if (*activep && opcode != sMatch)
921: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
922: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 923: if (connectinfo == NULL) {
1.153 dtucker 924: fatal("%s line %d: Directive '%s' is not allowed "
925: "within a Match block", filename, linenum, arg);
926: } else { /* this is a directive we have already processed */
927: while (arg)
928: arg = strdelim(&cp);
929: return 0;
930: }
931: }
932:
1.94 markus 933: switch (opcode) {
934: case sBadOption:
935: return -1;
936: case sPort:
937: /* ignore ports from configfile if cmdline specifies ports */
938: if (options->ports_from_cmdline)
939: return 0;
940: if (options->num_ports >= MAX_PORTS)
941: fatal("%s line %d: too many ports.",
942: filename, linenum);
1.48 provos 943: arg = strdelim(&cp);
1.94 markus 944: if (!arg || *arg == '\0')
945: fatal("%s line %d: missing port number.",
946: filename, linenum);
947: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 948: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 949: fatal("%s line %d: Badly formatted port number.",
950: filename, linenum);
951: break;
1.29 markus 952:
1.94 markus 953: case sServerKeyBits:
954: intptr = &options->server_key_bits;
1.180 djm 955: parse_int:
1.94 markus 956: arg = strdelim(&cp);
957: if (!arg || *arg == '\0')
958: fatal("%s line %d: missing integer value.",
959: filename, linenum);
960: value = atoi(arg);
1.153 dtucker 961: if (*activep && *intptr == -1)
1.94 markus 962: *intptr = value;
963: break;
1.25 markus 964:
1.94 markus 965: case sLoginGraceTime:
966: intptr = &options->login_grace_time;
1.180 djm 967: parse_time:
1.94 markus 968: arg = strdelim(&cp);
969: if (!arg || *arg == '\0')
970: fatal("%s line %d: missing time value.",
971: filename, linenum);
972: if ((value = convtime(arg)) == -1)
973: fatal("%s line %d: invalid time value.",
974: filename, linenum);
975: if (*intptr == -1)
976: *intptr = value;
977: break;
978:
979: case sKeyRegenerationTime:
980: intptr = &options->key_regeneration_time;
981: goto parse_time;
982:
983: case sListenAddress:
984: arg = strdelim(&cp);
1.139 djm 985: if (arg == NULL || *arg == '\0')
986: fatal("%s line %d: missing address",
1.94 markus 987: filename, linenum);
1.144 dtucker 988: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
989: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
990: && strchr(p+1, ':') != NULL) {
1.266 ! dtucker 991: queue_listen_addr(options, arg, 0);
1.144 dtucker 992: break;
993: }
1.139 djm 994: p = hpdelim(&arg);
995: if (p == NULL)
996: fatal("%s line %d: bad address:port usage",
997: filename, linenum);
998: p = cleanhostname(p);
999: if (arg == NULL)
1000: port = 0;
1.194 djm 1001: else if ((port = a2port(arg)) <= 0)
1.139 djm 1002: fatal("%s line %d: bad port number", filename, linenum);
1003:
1.266 ! dtucker 1004: queue_listen_addr(options, p, port);
1.25 markus 1005:
1.138 djm 1006: break;
1007:
1008: case sAddressFamily:
1.220 djm 1009: intptr = &options->address_family;
1010: multistate_ptr = multistate_addressfamily;
1011: parse_multistate:
1.138 djm 1012: arg = strdelim(&cp);
1.141 markus 1013: if (!arg || *arg == '\0')
1.220 djm 1014: fatal("%s line %d: missing argument.",
1.141 markus 1015: filename, linenum);
1.220 djm 1016: value = -1;
1017: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1018: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1019: value = multistate_ptr[i].value;
1020: break;
1021: }
1022: }
1023: if (value == -1)
1024: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1025: filename, linenum, arg);
1.220 djm 1026: if (*activep && *intptr == -1)
1.138 djm 1027: *intptr = value;
1.94 markus 1028: break;
1029:
1030: case sHostKeyFile:
1031: intptr = &options->num_host_key_files;
1032: if (*intptr >= MAX_HOSTKEYS)
1033: fatal("%s line %d: too many host keys specified (max %d).",
1034: filename, linenum, MAX_HOSTKEYS);
1035: charptr = &options->host_key_files[*intptr];
1.180 djm 1036: parse_filename:
1.94 markus 1037: arg = strdelim(&cp);
1038: if (!arg || *arg == '\0')
1039: fatal("%s line %d: missing file name.",
1040: filename, linenum);
1.153 dtucker 1041: if (*activep && *charptr == NULL) {
1.202 djm 1042: *charptr = derelativise_path(arg);
1.94 markus 1043: /* increase optional counter */
1044: if (intptr != NULL)
1045: *intptr = *intptr + 1;
1046: }
1047: break;
1.76 stevesk 1048:
1.240 markus 1049: case sHostKeyAgent:
1050: charptr = &options->host_key_agent;
1051: arg = strdelim(&cp);
1052: if (!arg || *arg == '\0')
1053: fatal("%s line %d: missing socket name.",
1054: filename, linenum);
1055: if (*activep && *charptr == NULL)
1056: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1057: xstrdup(arg) : derelativise_path(arg);
1058: break;
1059:
1.203 djm 1060: case sHostCertificate:
1061: intptr = &options->num_host_cert_files;
1062: if (*intptr >= MAX_HOSTKEYS)
1063: fatal("%s line %d: too many host certificates "
1064: "specified (max %d).", filename, linenum,
1065: MAX_HOSTCERTS);
1066: charptr = &options->host_cert_files[*intptr];
1067: goto parse_filename;
1068: break;
1069:
1.94 markus 1070: case sPidFile:
1071: charptr = &options->pid_file;
1072: goto parse_filename;
1.25 markus 1073:
1.94 markus 1074: case sPermitRootLogin:
1075: intptr = &options->permit_root_login;
1.220 djm 1076: multistate_ptr = multistate_permitrootlogin;
1077: goto parse_multistate;
1.36 markus 1078:
1.94 markus 1079: case sIgnoreRhosts:
1080: intptr = &options->ignore_rhosts;
1.180 djm 1081: parse_flag:
1.94 markus 1082: arg = strdelim(&cp);
1083: if (!arg || *arg == '\0')
1084: fatal("%s line %d: missing yes/no argument.",
1085: filename, linenum);
1086: value = 0; /* silence compiler */
1087: if (strcmp(arg, "yes") == 0)
1088: value = 1;
1089: else if (strcmp(arg, "no") == 0)
1090: value = 0;
1091: else
1092: fatal("%s line %d: Bad yes/no argument: %s",
1093: filename, linenum, arg);
1.153 dtucker 1094: if (*activep && *intptr == -1)
1.94 markus 1095: *intptr = value;
1096: break;
1097:
1098: case sIgnoreUserKnownHosts:
1099: intptr = &options->ignore_user_known_hosts;
1100: goto parse_flag;
1101:
1102: case sRhostsRSAAuthentication:
1103: intptr = &options->rhosts_rsa_authentication;
1104: goto parse_flag;
1105:
1106: case sHostbasedAuthentication:
1107: intptr = &options->hostbased_authentication;
1108: goto parse_flag;
1109:
1110: case sHostbasedUsesNameFromPacketOnly:
1111: intptr = &options->hostbased_uses_name_from_packet_only;
1112: goto parse_flag;
1113:
1.258 djm 1114: case sHostbasedAcceptedKeyTypes:
1115: charptr = &options->hostbased_key_types;
1116: parse_keytypes:
1117: arg = strdelim(&cp);
1118: if (!arg || *arg == '\0')
1119: fatal("%s line %d: Missing argument.",
1120: filename, linenum);
1121: if (!sshkey_names_valid2(arg, 1))
1122: fatal("%s line %d: Bad key types '%s'.",
1123: filename, linenum, arg ? arg : "<NONE>");
1124: if (*activep && *charptr == NULL)
1125: *charptr = xstrdup(arg);
1126: break;
1127:
1.94 markus 1128: case sRSAAuthentication:
1129: intptr = &options->rsa_authentication;
1130: goto parse_flag;
1131:
1132: case sPubkeyAuthentication:
1133: intptr = &options->pubkey_authentication;
1134: goto parse_flag;
1.119 jakob 1135:
1.258 djm 1136: case sPubkeyAcceptedKeyTypes:
1137: charptr = &options->pubkey_key_types;
1138: goto parse_keytypes;
1139:
1.94 markus 1140: case sKerberosAuthentication:
1141: intptr = &options->kerberos_authentication;
1142: goto parse_flag;
1143:
1144: case sKerberosOrLocalPasswd:
1145: intptr = &options->kerberos_or_local_passwd;
1146: goto parse_flag;
1147:
1148: case sKerberosTicketCleanup:
1149: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1150: goto parse_flag;
1151:
1152: case sKerberosGetAFSToken:
1153: intptr = &options->kerberos_get_afs_token;
1.125 markus 1154: goto parse_flag;
1155:
1156: case sGssAuthentication:
1157: intptr = &options->gss_authentication;
1158: goto parse_flag;
1159:
1160: case sGssCleanupCreds:
1161: intptr = &options->gss_cleanup_creds;
1.94 markus 1162: goto parse_flag;
1163:
1164: case sPasswordAuthentication:
1165: intptr = &options->password_authentication;
1166: goto parse_flag;
1167:
1168: case sKbdInteractiveAuthentication:
1169: intptr = &options->kbd_interactive_authentication;
1170: goto parse_flag;
1171:
1172: case sChallengeResponseAuthentication:
1173: intptr = &options->challenge_response_authentication;
1174: goto parse_flag;
1175:
1176: case sPrintMotd:
1177: intptr = &options->print_motd;
1178: goto parse_flag;
1179:
1180: case sPrintLastLog:
1181: intptr = &options->print_lastlog;
1182: goto parse_flag;
1183:
1184: case sX11Forwarding:
1185: intptr = &options->x11_forwarding;
1186: goto parse_flag;
1187:
1188: case sX11DisplayOffset:
1189: intptr = &options->x11_display_offset;
1190: goto parse_int;
1.99 stevesk 1191:
1192: case sX11UseLocalhost:
1193: intptr = &options->x11_use_localhost;
1194: goto parse_flag;
1.94 markus 1195:
1196: case sXAuthLocation:
1197: charptr = &options->xauth_location;
1198: goto parse_filename;
1199:
1.244 djm 1200: case sPermitTTY:
1201: intptr = &options->permit_tty;
1202: goto parse_flag;
1203:
1.250 djm 1204: case sPermitUserRC:
1205: intptr = &options->permit_user_rc;
1206: goto parse_flag;
1207:
1.94 markus 1208: case sStrictModes:
1209: intptr = &options->strict_modes;
1210: goto parse_flag;
1211:
1.129 markus 1212: case sTCPKeepAlive:
1213: intptr = &options->tcp_keep_alive;
1.94 markus 1214: goto parse_flag;
1215:
1216: case sEmptyPasswd:
1217: intptr = &options->permit_empty_passwd;
1.113 markus 1218: goto parse_flag;
1219:
1220: case sPermitUserEnvironment:
1221: intptr = &options->permit_user_env;
1.94 markus 1222: goto parse_flag;
1223:
1224: case sUseLogin:
1225: intptr = &options->use_login;
1.111 markus 1226: goto parse_flag;
1227:
1228: case sCompression:
1229: intptr = &options->compression;
1.220 djm 1230: multistate_ptr = multistate_compression;
1231: goto parse_multistate;
1.94 markus 1232:
1.235 dtucker 1233: case sRekeyLimit:
1234: arg = strdelim(&cp);
1235: if (!arg || *arg == '\0')
1236: fatal("%.200s line %d: Missing argument.", filename,
1237: linenum);
1238: if (strcmp(arg, "default") == 0) {
1239: val64 = 0;
1240: } else {
1.236 dtucker 1241: if (scan_scaled(arg, &val64) == -1)
1242: fatal("%.200s line %d: Bad number '%s': %s",
1243: filename, linenum, arg, strerror(errno));
1244: /* check for too-large or too-small limits */
1245: if (val64 > UINT_MAX)
1.235 dtucker 1246: fatal("%.200s line %d: RekeyLimit too large",
1247: filename, linenum);
1248: if (val64 != 0 && val64 < 16)
1249: fatal("%.200s line %d: RekeyLimit too small",
1250: filename, linenum);
1251: }
1252: if (*activep && options->rekey_limit == -1)
1253: options->rekey_limit = (u_int32_t)val64;
1254: if (cp != NULL) { /* optional rekey interval present */
1255: if (strcmp(cp, "none") == 0) {
1256: (void)strdelim(&cp); /* discard */
1257: break;
1258: }
1259: intptr = &options->rekey_interval;
1260: goto parse_time;
1261: }
1262: break;
1263:
1.94 markus 1264: case sGatewayPorts:
1.251 millert 1265: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1266: multistate_ptr = multistate_gatewayports;
1267: goto parse_multistate;
1.25 markus 1268:
1.122 markus 1269: case sUseDNS:
1270: intptr = &options->use_dns;
1.94 markus 1271: goto parse_flag;
1.53 markus 1272:
1.94 markus 1273: case sLogFacility:
1.174 dtucker 1274: log_facility_ptr = &options->log_facility;
1.94 markus 1275: arg = strdelim(&cp);
1276: value = log_facility_number(arg);
1.101 markus 1277: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1278: fatal("%.200s line %d: unsupported log facility '%s'",
1279: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1280: if (*log_facility_ptr == -1)
1281: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1282: break;
1.25 markus 1283:
1.94 markus 1284: case sLogLevel:
1.174 dtucker 1285: log_level_ptr = &options->log_level;
1.94 markus 1286: arg = strdelim(&cp);
1287: value = log_level_number(arg);
1.101 markus 1288: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1289: fatal("%.200s line %d: unsupported log level '%s'",
1290: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1291: if (*log_level_ptr == -1)
1292: *log_level_ptr = (LogLevel) value;
1.94 markus 1293: break;
1294:
1295: case sAllowTcpForwarding:
1296: intptr = &options->allow_tcp_forwarding;
1.233 djm 1297: multistate_ptr = multistate_tcpfwd;
1298: goto parse_multistate;
1.102 provos 1299:
1.251 millert 1300: case sAllowStreamLocalForwarding:
1301: intptr = &options->allow_streamlocal_forwarding;
1302: multistate_ptr = multistate_tcpfwd;
1303: goto parse_multistate;
1304:
1.178 pyr 1305: case sAllowAgentForwarding:
1306: intptr = &options->allow_agent_forwarding;
1307: goto parse_flag;
1308:
1.102 provos 1309: case sUsePrivilegeSeparation:
1310: intptr = &use_privsep;
1.222 djm 1311: multistate_ptr = multistate_privsep;
1312: goto parse_multistate;
1.94 markus 1313:
1314: case sAllowUsers:
1315: while ((arg = strdelim(&cp)) && *arg != '\0') {
1316: if (options->num_allow_users >= MAX_ALLOW_USERS)
1317: fatal("%s line %d: too many allow users.",
1318: filename, linenum);
1.227 markus 1319: if (!*activep)
1320: continue;
1.112 deraadt 1321: options->allow_users[options->num_allow_users++] =
1322: xstrdup(arg);
1.94 markus 1323: }
1324: break;
1.25 markus 1325:
1.94 markus 1326: case sDenyUsers:
1327: while ((arg = strdelim(&cp)) && *arg != '\0') {
1328: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1329: fatal("%s line %d: too many deny users.",
1.94 markus 1330: filename, linenum);
1.227 markus 1331: if (!*activep)
1332: continue;
1.112 deraadt 1333: options->deny_users[options->num_deny_users++] =
1334: xstrdup(arg);
1.94 markus 1335: }
1336: break;
1.25 markus 1337:
1.94 markus 1338: case sAllowGroups:
1339: while ((arg = strdelim(&cp)) && *arg != '\0') {
1340: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1341: fatal("%s line %d: too many allow groups.",
1342: filename, linenum);
1.227 markus 1343: if (!*activep)
1344: continue;
1.112 deraadt 1345: options->allow_groups[options->num_allow_groups++] =
1346: xstrdup(arg);
1.94 markus 1347: }
1348: break;
1.33 markus 1349:
1.94 markus 1350: case sDenyGroups:
1351: while ((arg = strdelim(&cp)) && *arg != '\0') {
1352: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1353: fatal("%s line %d: too many deny groups.",
1354: filename, linenum);
1.227 markus 1355: if (!*activep)
1356: continue;
1357: options->deny_groups[options->num_deny_groups++] =
1358: xstrdup(arg);
1.94 markus 1359: }
1360: break;
1.66 markus 1361:
1.94 markus 1362: case sCiphers:
1363: arg = strdelim(&cp);
1364: if (!arg || *arg == '\0')
1365: fatal("%s line %d: Missing argument.", filename, linenum);
1366: if (!ciphers_valid(arg))
1367: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1368: filename, linenum, arg ? arg : "<NONE>");
1369: if (options->ciphers == NULL)
1370: options->ciphers = xstrdup(arg);
1371: break;
1.33 markus 1372:
1.94 markus 1373: case sMacs:
1374: arg = strdelim(&cp);
1375: if (!arg || *arg == '\0')
1376: fatal("%s line %d: Missing argument.", filename, linenum);
1377: if (!mac_valid(arg))
1378: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1379: filename, linenum, arg ? arg : "<NONE>");
1380: if (options->macs == NULL)
1381: options->macs = xstrdup(arg);
1.211 djm 1382: break;
1383:
1384: case sKexAlgorithms:
1385: arg = strdelim(&cp);
1386: if (!arg || *arg == '\0')
1387: fatal("%s line %d: Missing argument.",
1388: filename, linenum);
1389: if (!kex_names_valid(arg))
1390: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1391: filename, linenum, arg ? arg : "<NONE>");
1392: if (options->kex_algorithms == NULL)
1393: options->kex_algorithms = xstrdup(arg);
1.94 markus 1394: break;
1.43 jakob 1395:
1.94 markus 1396: case sProtocol:
1397: intptr = &options->protocol;
1398: arg = strdelim(&cp);
1399: if (!arg || *arg == '\0')
1400: fatal("%s line %d: Missing argument.", filename, linenum);
1401: value = proto_spec(arg);
1402: if (value == SSH_PROTO_UNKNOWN)
1403: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1404: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1405: if (*intptr == SSH_PROTO_UNKNOWN)
1406: *intptr = value;
1407: break;
1408:
1409: case sSubsystem:
1410: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1411: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1412: filename, linenum);
1.94 markus 1413: }
1414: arg = strdelim(&cp);
1415: if (!arg || *arg == '\0')
1416: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1417: filename, linenum);
1.153 dtucker 1418: if (!*activep) {
1419: arg = strdelim(&cp);
1420: break;
1421: }
1.94 markus 1422: for (i = 0; i < options->num_subsystems; i++)
1423: if (strcmp(arg, options->subsystem_name[i]) == 0)
1424: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1425: filename, linenum, arg);
1.94 markus 1426: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1427: arg = strdelim(&cp);
1428: if (!arg || *arg == '\0')
1429: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1430: filename, linenum);
1.94 markus 1431: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1432:
1433: /* Collect arguments (separate to executable) */
1434: p = xstrdup(arg);
1435: len = strlen(p) + 1;
1436: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1437: len += 1 + strlen(arg);
1.264 deraadt 1438: p = xreallocarray(p, 1, len);
1.151 djm 1439: strlcat(p, " ", len);
1440: strlcat(p, arg, len);
1441: }
1442: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1443: options->num_subsystems++;
1444: break;
1.46 markus 1445:
1.94 markus 1446: case sMaxStartups:
1447: arg = strdelim(&cp);
1448: if (!arg || *arg == '\0')
1449: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1450: filename, linenum);
1.94 markus 1451: if ((n = sscanf(arg, "%d:%d:%d",
1452: &options->max_startups_begin,
1453: &options->max_startups_rate,
1454: &options->max_startups)) == 3) {
1455: if (options->max_startups_begin >
1456: options->max_startups ||
1457: options->max_startups_rate > 100 ||
1458: options->max_startups_rate < 1)
1.50 markus 1459: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1460: filename, linenum);
1.94 markus 1461: } else if (n != 1)
1462: fatal("%s line %d: Illegal MaxStartups spec.",
1463: filename, linenum);
1464: else
1465: options->max_startups = options->max_startups_begin;
1466: break;
1.133 dtucker 1467:
1468: case sMaxAuthTries:
1469: intptr = &options->max_authtries;
1470: goto parse_int;
1.94 markus 1471:
1.180 djm 1472: case sMaxSessions:
1473: intptr = &options->max_sessions;
1474: goto parse_int;
1475:
1.94 markus 1476: case sBanner:
1477: charptr = &options->banner;
1478: goto parse_filename;
1.176 djm 1479:
1.94 markus 1480: /*
1481: * These options can contain %X options expanded at
1482: * connect time, so that you can specify paths like:
1483: *
1484: * AuthorizedKeysFile /etc/ssh_keys/%u
1485: */
1486: case sAuthorizedKeysFile:
1.219 djm 1487: if (*activep && options->num_authkeys_files == 0) {
1488: while ((arg = strdelim(&cp)) && *arg != '\0') {
1489: if (options->num_authkeys_files >=
1490: MAX_AUTHKEYS_FILES)
1491: fatal("%s line %d: "
1492: "too many authorized keys files.",
1493: filename, linenum);
1494: options->authorized_keys_files[
1495: options->num_authkeys_files++] =
1496: tilde_expand_filename(arg, getuid());
1497: }
1498: }
1499: return 0;
1500:
1.208 djm 1501: case sAuthorizedPrincipalsFile:
1502: charptr = &options->authorized_principals_file;
1.205 djm 1503: arg = strdelim(&cp);
1504: if (!arg || *arg == '\0')
1505: fatal("%s line %d: missing file name.",
1506: filename, linenum);
1507: if (*activep && *charptr == NULL) {
1.206 markus 1508: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1509: /* increase optional counter */
1510: if (intptr != NULL)
1511: *intptr = *intptr + 1;
1512: }
1513: break;
1.94 markus 1514:
1515: case sClientAliveInterval:
1516: intptr = &options->client_alive_interval;
1517: goto parse_time;
1518:
1519: case sClientAliveCountMax:
1520: intptr = &options->client_alive_count_max;
1521: goto parse_int;
1.131 djm 1522:
1523: case sAcceptEnv:
1524: while ((arg = strdelim(&cp)) && *arg != '\0') {
1525: if (strchr(arg, '=') != NULL)
1526: fatal("%s line %d: Invalid environment name.",
1527: filename, linenum);
1528: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1529: fatal("%s line %d: too many allow env.",
1530: filename, linenum);
1.153 dtucker 1531: if (!*activep)
1.227 markus 1532: continue;
1.131 djm 1533: options->accept_env[options->num_accept_env++] =
1534: xstrdup(arg);
1535: }
1536: break;
1.145 reyk 1537:
1538: case sPermitTunnel:
1539: intptr = &options->permit_tun;
1.146 reyk 1540: arg = strdelim(&cp);
1541: if (!arg || *arg == '\0')
1542: fatal("%s line %d: Missing yes/point-to-point/"
1543: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1544: value = -1;
1545: for (i = 0; tunmode_desc[i].val != -1; i++)
1546: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1547: value = tunmode_desc[i].val;
1548: break;
1549: }
1550: if (value == -1)
1.146 reyk 1551: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1552: "no argument: %s", filename, linenum, arg);
1553: if (*intptr == -1)
1554: *intptr = value;
1555: break;
1.94 markus 1556:
1.153 dtucker 1557: case sMatch:
1558: if (cmdline)
1559: fatal("Match directive not supported as a command-line "
1560: "option");
1.226 dtucker 1561: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1562: if (value < 0)
1563: fatal("%s line %d: Bad Match condition", filename,
1564: linenum);
1565: *activep = value;
1.156 dtucker 1566: break;
1567:
1568: case sPermitOpen:
1569: arg = strdelim(&cp);
1570: if (!arg || *arg == '\0')
1571: fatal("%s line %d: missing PermitOpen specification",
1572: filename, linenum);
1.167 dtucker 1573: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1574: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1575: if (*activep && n == -1) {
1.156 dtucker 1576: channel_clear_adm_permitted_opens();
1.159 dtucker 1577: options->num_permitted_opens = 0;
1.224 dtucker 1578: }
1579: break;
1580: }
1581: if (strcmp(arg, "none") == 0) {
1582: if (*activep && n == -1) {
1583: options->num_permitted_opens = 1;
1584: channel_disable_adm_local_opens();
1.159 dtucker 1585: }
1.156 dtucker 1586: break;
1587: }
1.166 dtucker 1588: if (*activep && n == -1)
1589: channel_clear_adm_permitted_opens();
1.159 dtucker 1590: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1591: p = hpdelim(&arg);
1592: if (p == NULL)
1593: fatal("%s line %d: missing host in PermitOpen",
1594: filename, linenum);
1595: p = cleanhostname(p);
1.223 dtucker 1596: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.159 dtucker 1597: fatal("%s line %d: bad port number in "
1598: "PermitOpen", filename, linenum);
1.166 dtucker 1599: if (*activep && n == -1)
1.159 dtucker 1600: options->num_permitted_opens =
1601: channel_add_adm_permitted_opens(p, port);
1602: }
1.153 dtucker 1603: break;
1604:
1.158 dtucker 1605: case sForceCommand:
1.262 dtucker 1606: if (cp == NULL || *cp == '\0')
1.158 dtucker 1607: fatal("%.200s line %d: Missing argument.", filename,
1608: linenum);
1609: len = strspn(cp, WHITESPACE);
1610: if (*activep && options->adm_forced_command == NULL)
1611: options->adm_forced_command = xstrdup(cp + len);
1612: return 0;
1613:
1.176 djm 1614: case sChrootDirectory:
1615: charptr = &options->chroot_directory;
1.177 djm 1616:
1617: arg = strdelim(&cp);
1618: if (!arg || *arg == '\0')
1619: fatal("%s line %d: missing file name.",
1620: filename, linenum);
1621: if (*activep && *charptr == NULL)
1622: *charptr = xstrdup(arg);
1623: break;
1.176 djm 1624:
1.204 djm 1625: case sTrustedUserCAKeys:
1626: charptr = &options->trusted_user_ca_keys;
1627: goto parse_filename;
1628:
1629: case sRevokedKeys:
1630: charptr = &options->revoked_keys_file;
1631: goto parse_filename;
1632:
1.213 djm 1633: case sIPQoS:
1634: arg = strdelim(&cp);
1635: if ((value = parse_ipqos(arg)) == -1)
1636: fatal("%s line %d: Bad IPQoS value: %s",
1637: filename, linenum, arg);
1638: arg = strdelim(&cp);
1639: if (arg == NULL)
1640: value2 = value;
1641: else if ((value2 = parse_ipqos(arg)) == -1)
1642: fatal("%s line %d: Bad IPQoS value: %s",
1643: filename, linenum, arg);
1644: if (*activep) {
1645: options->ip_qos_interactive = value;
1646: options->ip_qos_bulk = value2;
1647: }
1648: break;
1649:
1.225 djm 1650: case sVersionAddendum:
1.262 dtucker 1651: if (cp == NULL || *cp == '\0')
1.225 djm 1652: fatal("%.200s line %d: Missing argument.", filename,
1653: linenum);
1654: len = strspn(cp, WHITESPACE);
1655: if (*activep && options->version_addendum == NULL) {
1656: if (strcasecmp(cp + len, "none") == 0)
1657: options->version_addendum = xstrdup("");
1658: else if (strchr(cp + len, '\r') != NULL)
1659: fatal("%.200s line %d: Invalid argument",
1660: filename, linenum);
1661: else
1662: options->version_addendum = xstrdup(cp + len);
1663: }
1664: return 0;
1665:
1.231 djm 1666: case sAuthorizedKeysCommand:
1.255 jsg 1667: if (cp == NULL)
1668: fatal("%.200s line %d: Missing argument.", filename,
1669: linenum);
1.231 djm 1670: len = strspn(cp, WHITESPACE);
1671: if (*activep && options->authorized_keys_command == NULL) {
1672: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1673: fatal("%.200s line %d: AuthorizedKeysCommand "
1674: "must be an absolute path",
1675: filename, linenum);
1676: options->authorized_keys_command = xstrdup(cp + len);
1677: }
1678: return 0;
1679:
1680: case sAuthorizedKeysCommandUser:
1681: charptr = &options->authorized_keys_command_user;
1682:
1683: arg = strdelim(&cp);
1.255 jsg 1684: if (!arg || *arg == '\0')
1685: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1686: "argument.", filename, linenum);
1.231 djm 1687: if (*activep && *charptr == NULL)
1688: *charptr = xstrdup(arg);
1689: break;
1690:
1.232 djm 1691: case sAuthenticationMethods:
1692: if (*activep && options->num_auth_methods == 0) {
1693: while ((arg = strdelim(&cp)) && *arg != '\0') {
1694: if (options->num_auth_methods >=
1695: MAX_AUTH_METHODS)
1696: fatal("%s line %d: "
1697: "too many authentication methods.",
1698: filename, linenum);
1699: if (auth2_methods_valid(arg, 0) != 0)
1700: fatal("%s line %d: invalid "
1701: "authentication method list.",
1702: filename, linenum);
1703: options->auth_methods[
1704: options->num_auth_methods++] = xstrdup(arg);
1705: }
1706: }
1707: return 0;
1708:
1.251 millert 1709: case sStreamLocalBindMask:
1710: arg = strdelim(&cp);
1711: if (!arg || *arg == '\0')
1712: fatal("%s line %d: missing StreamLocalBindMask argument.",
1713: filename, linenum);
1714: /* Parse mode in octal format */
1715: value = strtol(arg, &p, 8);
1716: if (arg == p || value < 0 || value > 0777)
1717: fatal("%s line %d: Bad mask.", filename, linenum);
1718: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1719: break;
1720:
1721: case sStreamLocalBindUnlink:
1722: intptr = &options->fwd_opts.streamlocal_bind_unlink;
1723: goto parse_flag;
1724:
1.256 djm 1725: case sFingerprintHash:
1726: arg = strdelim(&cp);
1727: if (!arg || *arg == '\0')
1728: fatal("%.200s line %d: Missing argument.",
1729: filename, linenum);
1730: if ((value = ssh_digest_alg_by_name(arg)) == -1)
1731: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
1732: filename, linenum, arg);
1733: if (*activep)
1734: options->fingerprint_hash = value;
1735: break;
1736:
1.94 markus 1737: case sDeprecated:
1.117 itojun 1738: logit("%s line %d: Deprecated option %s",
1.121 jakob 1739: filename, linenum, arg);
1740: while (arg)
1741: arg = strdelim(&cp);
1742: break;
1743:
1744: case sUnsupported:
1745: logit("%s line %d: Unsupported option %s",
1.94 markus 1746: filename, linenum, arg);
1747: while (arg)
1748: arg = strdelim(&cp);
1749: break;
1750:
1751: default:
1752: fatal("%s line %d: Missing handler for opcode %s (%d)",
1753: filename, linenum, arg, opcode);
1754: }
1755: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1756: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1757: filename, linenum, arg);
1758: return 0;
1759: }
1760:
1761: /* Reads the server configuration file. */
1.25 markus 1762:
1.94 markus 1763: void
1.134 djm 1764: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1765: {
1.229 dtucker 1766: char line[4096], *cp;
1.94 markus 1767: FILE *f;
1.229 dtucker 1768: int lineno = 0;
1.81 stevesk 1769:
1.134 djm 1770: debug2("%s: filename %s", __func__, filename);
1771: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1772: perror(filename);
1773: exit(1);
1774: }
1.134 djm 1775: buffer_clear(conf);
1776: while (fgets(line, sizeof(line), f)) {
1.229 dtucker 1777: lineno++;
1778: if (strlen(line) == sizeof(line) - 1)
1779: fatal("%s line %d too long", filename, lineno);
1.134 djm 1780: /*
1781: * Trim out comments and strip whitespace
1.135 deraadt 1782: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1783: * line numbers later for error messages
1784: */
1785: if ((cp = strchr(line, '#')) != NULL)
1786: memcpy(cp, "\n", 2);
1787: cp = line + strspn(line, " \t\r");
1788:
1789: buffer_append(conf, cp, strlen(cp));
1790: }
1791: buffer_append(conf, "\0", 1);
1792: fclose(f);
1793: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1794: }
1795:
1796: void
1.226 dtucker 1797: parse_server_match_config(ServerOptions *options,
1798: struct connection_info *connectinfo)
1.153 dtucker 1799: {
1800: ServerOptions mo;
1801:
1802: initialize_server_options(&mo);
1.226 dtucker 1803: parse_server_config(&mo, "reprocess config", &cfg, connectinfo);
1.168 dtucker 1804: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1805: }
1806:
1.226 dtucker 1807: int parse_server_match_testspec(struct connection_info *ci, char *spec)
1808: {
1809: char *p;
1810:
1811: while ((p = strsep(&spec, ",")) && *p != '\0') {
1812: if (strncmp(p, "addr=", 5) == 0) {
1813: ci->address = xstrdup(p + 5);
1814: } else if (strncmp(p, "host=", 5) == 0) {
1815: ci->host = xstrdup(p + 5);
1816: } else if (strncmp(p, "user=", 5) == 0) {
1817: ci->user = xstrdup(p + 5);
1818: } else if (strncmp(p, "laddr=", 6) == 0) {
1819: ci->laddress = xstrdup(p + 6);
1820: } else if (strncmp(p, "lport=", 6) == 0) {
1821: ci->lport = a2port(p + 6);
1822: if (ci->lport == -1) {
1823: fprintf(stderr, "Invalid port '%s' in test mode"
1824: " specification %s\n", p+6, p);
1825: return -1;
1826: }
1827: } else {
1828: fprintf(stderr, "Invalid test mode specification %s\n",
1829: p);
1830: return -1;
1831: }
1832: }
1833: return 0;
1834: }
1835:
1836: /*
1837: * returns 1 for a complete spec, 0 for partial spec and -1 for an
1838: * empty spec.
1839: */
1840: int server_match_spec_complete(struct connection_info *ci)
1841: {
1842: if (ci->user && ci->host && ci->address)
1843: return 1; /* complete */
1844: if (!ci->user && !ci->host && !ci->address)
1845: return -1; /* empty */
1846: return 0; /* partial */
1847: }
1848:
1.168 dtucker 1849: /*
1850: * Copy any supported values that are set.
1851: *
1.195 jj 1852: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1853: * array values that are not used pre-authentication, because any that we
1854: * do use must be explictly sent in mm_getpwnamallow().
1855: */
1.153 dtucker 1856: void
1.168 dtucker 1857: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1858: {
1.247 djm 1859: #define M_CP_INTOPT(n) do {\
1860: if (src->n != -1) \
1861: dst->n = src->n; \
1862: } while (0)
1863:
1.168 dtucker 1864: M_CP_INTOPT(password_authentication);
1865: M_CP_INTOPT(gss_authentication);
1866: M_CP_INTOPT(rsa_authentication);
1867: M_CP_INTOPT(pubkey_authentication);
1868: M_CP_INTOPT(kerberos_authentication);
1869: M_CP_INTOPT(hostbased_authentication);
1.209 djm 1870: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 1871: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 1872: M_CP_INTOPT(permit_root_login);
1.188 djm 1873: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1874:
1875: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 1876: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 1877: M_CP_INTOPT(allow_agent_forwarding);
1.209 djm 1878: M_CP_INTOPT(permit_tun);
1.251 millert 1879: M_CP_INTOPT(fwd_opts.gateway_ports);
1.168 dtucker 1880: M_CP_INTOPT(x11_display_offset);
1881: M_CP_INTOPT(x11_forwarding);
1882: M_CP_INTOPT(x11_use_localhost);
1.244 djm 1883: M_CP_INTOPT(permit_tty);
1.250 djm 1884: M_CP_INTOPT(permit_user_rc);
1.180 djm 1885: M_CP_INTOPT(max_sessions);
1.184 dtucker 1886: M_CP_INTOPT(max_authtries);
1.213 djm 1887: M_CP_INTOPT(ip_qos_interactive);
1888: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 1889: M_CP_INTOPT(rekey_limit);
1890: M_CP_INTOPT(rekey_interval);
1.247 djm 1891:
1892: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
1893: #define M_CP_STROPT(n) do {\
1894: if (src->n != NULL && dst->n != src->n) { \
1895: free(dst->n); \
1896: dst->n = src->n; \
1897: } \
1898: } while(0)
1899: #define M_CP_STRARRAYOPT(n, num_n) do {\
1900: if (src->num_n != 0) { \
1901: for (dst->num_n = 0; dst->num_n < src->num_n; dst->num_n++) \
1902: dst->n[dst->num_n] = xstrdup(src->n[dst->num_n]); \
1903: } \
1904: } while(0)
1.168 dtucker 1905:
1.218 djm 1906: /* See comment in servconf.h */
1907: COPY_MATCH_STRING_OPTS();
1.216 djm 1908:
1.217 dtucker 1909: /*
1910: * The only things that should be below this point are string options
1911: * which are only used after authentication.
1912: */
1.168 dtucker 1913: if (preauth)
1914: return;
1.219 djm 1915:
1.168 dtucker 1916: M_CP_STROPT(adm_forced_command);
1.176 djm 1917: M_CP_STROPT(chroot_directory);
1.153 dtucker 1918: }
1.168 dtucker 1919:
1920: #undef M_CP_INTOPT
1921: #undef M_CP_STROPT
1.219 djm 1922: #undef M_CP_STRARRAYOPT
1.153 dtucker 1923:
1924: void
1925: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1.226 dtucker 1926: struct connection_info *connectinfo)
1.134 djm 1927: {
1.153 dtucker 1928: int active, linenum, bad_options = 0;
1.136 dtucker 1929: char *cp, *obuf, *cbuf;
1.134 djm 1930:
1931: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1932:
1.136 dtucker 1933: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.226 dtucker 1934: active = connectinfo ? 0 : 1;
1.137 dtucker 1935: linenum = 1;
1.140 deraadt 1936: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1937: if (process_server_config_line(options, cp, filename,
1.226 dtucker 1938: linenum++, &active, connectinfo) != 0)
1.94 markus 1939: bad_options++;
1.1 deraadt 1940: }
1.239 djm 1941: free(obuf);
1.78 stevesk 1942: if (bad_options > 0)
1943: fatal("%s: terminating, %d bad configuration options",
1944: filename, bad_options);
1.266 ! dtucker 1945: process_queued_listen_addrs(options);
1.182 dtucker 1946: }
1947:
1948: static const char *
1.221 djm 1949: fmt_multistate_int(int val, const struct multistate *m)
1950: {
1951: u_int i;
1952:
1953: for (i = 0; m[i].key != NULL; i++) {
1954: if (m[i].value == val)
1955: return m[i].key;
1956: }
1957: return "UNKNOWN";
1958: }
1959:
1960: static const char *
1.182 dtucker 1961: fmt_intarg(ServerOpCodes code, int val)
1962: {
1.221 djm 1963: if (val == -1)
1964: return "unset";
1965: switch (code) {
1966: case sAddressFamily:
1967: return fmt_multistate_int(val, multistate_addressfamily);
1968: case sPermitRootLogin:
1969: return fmt_multistate_int(val, multistate_permitrootlogin);
1970: case sGatewayPorts:
1971: return fmt_multistate_int(val, multistate_gatewayports);
1972: case sCompression:
1973: return fmt_multistate_int(val, multistate_compression);
1.222 djm 1974: case sUsePrivilegeSeparation:
1975: return fmt_multistate_int(val, multistate_privsep);
1.233 djm 1976: case sAllowTcpForwarding:
1977: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 1978: case sAllowStreamLocalForwarding:
1979: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 1980: case sFingerprintHash:
1981: return ssh_digest_alg_name(val);
1.221 djm 1982: case sProtocol:
1.182 dtucker 1983: switch (val) {
1984: case SSH_PROTO_1:
1985: return "1";
1986: case SSH_PROTO_2:
1987: return "2";
1988: case (SSH_PROTO_1|SSH_PROTO_2):
1989: return "2,1";
1990: default:
1991: return "UNKNOWN";
1992: }
1.221 djm 1993: default:
1994: switch (val) {
1995: case 0:
1996: return "no";
1997: case 1:
1998: return "yes";
1999: default:
2000: return "UNKNOWN";
2001: }
1.182 dtucker 2002: }
2003: }
2004:
2005: static const char *
2006: lookup_opcode_name(ServerOpCodes code)
2007: {
2008: u_int i;
2009:
2010: for (i = 0; keywords[i].name != NULL; i++)
2011: if (keywords[i].opcode == code)
2012: return(keywords[i].name);
2013: return "UNKNOWN";
2014: }
2015:
2016: static void
2017: dump_cfg_int(ServerOpCodes code, int val)
2018: {
2019: printf("%s %d\n", lookup_opcode_name(code), val);
2020: }
2021:
2022: static void
1.263 dtucker 2023: dump_cfg_oct(ServerOpCodes code, int val)
2024: {
2025: printf("%s 0%o\n", lookup_opcode_name(code), val);
2026: }
2027:
2028: static void
1.182 dtucker 2029: dump_cfg_fmtint(ServerOpCodes code, int val)
2030: {
2031: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2032: }
2033:
2034: static void
2035: dump_cfg_string(ServerOpCodes code, const char *val)
2036: {
2037: if (val == NULL)
2038: return;
1.257 djm 2039: printf("%s %s\n", lookup_opcode_name(code),
2040: val == NULL ? "none" : val);
1.182 dtucker 2041: }
2042:
2043: static void
2044: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2045: {
2046: u_int i;
2047:
2048: for (i = 0; i < count; i++)
1.219 djm 2049: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2050: }
2051:
2052: static void
2053: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2054: {
2055: u_int i;
2056:
1.261 dtucker 2057: if (count <= 0)
2058: return;
1.219 djm 2059: printf("%s", lookup_opcode_name(code));
2060: for (i = 0; i < count; i++)
2061: printf(" %s", vals[i]);
2062: printf("\n");
1.182 dtucker 2063: }
2064:
2065: void
2066: dump_config(ServerOptions *o)
2067: {
2068: u_int i;
2069: int ret;
2070: struct addrinfo *ai;
2071: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1.263 dtucker 2072: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2073:
2074: /* these are usually at the top of the config */
2075: for (i = 0; i < o->num_ports; i++)
2076: printf("port %d\n", o->ports[i]);
2077: dump_cfg_fmtint(sProtocol, o->protocol);
2078: dump_cfg_fmtint(sAddressFamily, o->address_family);
2079:
1.263 dtucker 2080: /*
2081: * ListenAddress must be after Port. add_one_listen_addr pushes
2082: * addresses onto a stack, so to maintain ordering we need to
2083: * print these in reverse order.
2084: */
1.182 dtucker 2085: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
2086: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
2087: sizeof(addr), port, sizeof(port),
2088: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
2089: error("getnameinfo failed: %.100s",
2090: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
2091: strerror(errno));
2092: } else {
1.263 dtucker 2093: laddr2 = laddr1;
1.182 dtucker 2094: if (ai->ai_family == AF_INET6)
1.263 dtucker 2095: xasprintf(&laddr1, "listenaddress [%s]:%s\n%s",
2096: addr, port, laddr2);
1.182 dtucker 2097: else
1.263 dtucker 2098: xasprintf(&laddr1, "listenaddress %s:%s\n%s",
2099: addr, port, laddr2);
2100: free(laddr2);
1.182 dtucker 2101: }
2102: }
1.263 dtucker 2103: printf("%s", laddr1);
2104: free(laddr1);
1.182 dtucker 2105:
2106: /* integer arguments */
2107: dump_cfg_int(sServerKeyBits, o->server_key_bits);
2108: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2109: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
2110: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2111: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2112: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2113: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2114: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2115: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2116:
2117: /* formatted integer arguments */
2118: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2119: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2120: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2121: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
2122: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2123: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2124: o->hostbased_uses_name_from_packet_only);
2125: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
2126: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2127: #ifdef KRB5
1.182 dtucker 2128: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2129: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2130: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2131: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2132: #endif
2133: #ifdef GSSAPI
1.182 dtucker 2134: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2135: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2136: #endif
1.182 dtucker 2137: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2138: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2139: o->kbd_interactive_authentication);
2140: dump_cfg_fmtint(sChallengeResponseAuthentication,
2141: o->challenge_response_authentication);
2142: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2143: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2144: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2145: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2146: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2147: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2148: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2149: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2150: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2151: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2152: dump_cfg_fmtint(sUseLogin, o->use_login);
2153: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2154: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2155: dump_cfg_fmtint(sUseDNS, o->use_dns);
2156: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2157: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.251 millert 2158: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.182 dtucker 2159: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1.256 djm 2160: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.182 dtucker 2161:
2162: /* string arguments */
2163: dump_cfg_string(sPidFile, o->pid_file);
2164: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2165: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2166: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2167: dump_cfg_string(sBanner, o->banner);
2168: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2169: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2170: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2171: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2172: dump_cfg_string(sAuthorizedPrincipalsFile,
2173: o->authorized_principals_file);
1.261 dtucker 2174: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2175: ? "none" : o->version_addendum);
1.231 djm 2176: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2177: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.240 markus 2178: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2179: dump_cfg_string(sKexAlgorithms,
1.253 djm 2180: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.258 djm 2181: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2182: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
2183: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2184: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.182 dtucker 2185:
2186: /* string arguments requiring a lookup */
2187: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2188: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2189:
2190: /* string array arguments */
1.219 djm 2191: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2192: o->authorized_keys_files);
1.182 dtucker 2193: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2194: o->host_key_files);
1.261 dtucker 2195: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2196: o->host_cert_files);
1.182 dtucker 2197: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2198: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2199: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2200: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2201: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.232 djm 2202: dump_cfg_strarray_oneline(sAuthenticationMethods,
2203: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2204:
2205: /* other arguments */
2206: for (i = 0; i < o->num_subsystems; i++)
2207: printf("subsystem %s %s\n", o->subsystem_name[i],
2208: o->subsystem_args[i]);
2209:
2210: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2211: o->max_startups_rate, o->max_startups);
2212:
2213: for (i = 0; tunmode_desc[i].val != -1; i++)
2214: if (tunmode_desc[i].val == o->permit_tun) {
2215: s = tunmode_desc[i].text;
2216: break;
2217: }
2218: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2219:
1.214 stevesk 2220: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2221: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2222:
1.241 djm 2223: printf("rekeylimit %lld %d\n", (long long)o->rekey_limit,
2224: o->rekey_interval);
1.182 dtucker 2225:
2226: channel_print_adm_permitted_opens();
1.1 deraadt 2227: }
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