Annotation of src/usr.bin/ssh/servconf.c, Revision 1.211
1.211 ! djm 1: /* $OpenBSD: servconf.c,v 1.210 2010/09/01 15:21:35 naddy Exp $ */
1.1 deraadt 2: /*
1.26 deraadt 3: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
4: * All rights reserved
1.34 markus 5: *
1.51 deraadt 6: * As far as I am concerned, the code I have written for this software
7: * can be used freely for any purpose. Any derived versions of this
8: * software must be clearly marked as such, and if the derived work is
9: * incompatible with the protocol description in the RFC file, it must be
10: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 11: */
1.1 deraadt 12:
1.152 stevesk 13: #include <sys/types.h>
14: #include <sys/socket.h>
1.179 djm 15: #include <sys/queue.h>
1.154 stevesk 16:
17: #include <netdb.h>
1.165 dtucker 18: #include <pwd.h>
1.162 stevesk 19: #include <stdio.h>
1.161 stevesk 20: #include <stdlib.h>
1.160 stevesk 21: #include <string.h>
1.164 deraadt 22: #include <signal.h>
1.155 stevesk 23: #include <unistd.h>
1.164 deraadt 24: #include <stdarg.h>
1.182 dtucker 25: #include <errno.h>
1.1 deraadt 26:
1.164 deraadt 27: #include "xmalloc.h"
1.1 deraadt 28: #include "ssh.h"
1.62 markus 29: #include "log.h"
1.164 deraadt 30: #include "buffer.h"
1.1 deraadt 31: #include "servconf.h"
1.33 markus 32: #include "compat.h"
1.60 markus 33: #include "pathnames.h"
1.62 markus 34: #include "misc.h"
35: #include "cipher.h"
1.164 deraadt 36: #include "key.h"
1.66 markus 37: #include "kex.h"
38: #include "mac.h"
1.153 dtucker 39: #include "match.h"
1.156 dtucker 40: #include "channels.h"
1.165 dtucker 41: #include "groupaccess.h"
1.1 deraadt 42:
1.194 djm 43: static void add_listen_addr(ServerOptions *, char *, int);
44: static void add_one_listen_addr(ServerOptions *, char *, int);
1.29 markus 45:
1.102 provos 46: /* Use of privilege separation or not */
47: extern int use_privsep;
1.153 dtucker 48: extern Buffer cfg;
1.62 markus 49:
1.1 deraadt 50: /* Initializes the server options to their default values. */
51:
1.34 markus 52: void
1.25 markus 53: initialize_server_options(ServerOptions *options)
1.1 deraadt 54: {
1.25 markus 55: memset(options, 0, sizeof(*options));
1.29 markus 56: options->num_ports = 0;
57: options->ports_from_cmdline = 0;
58: options->listen_addrs = NULL;
1.138 djm 59: options->address_family = -1;
1.54 markus 60: options->num_host_key_files = 0;
1.203 djm 61: options->num_host_cert_files = 0;
1.36 markus 62: options->pid_file = NULL;
1.25 markus 63: options->server_key_bits = -1;
64: options->login_grace_time = -1;
65: options->key_regeneration_time = -1;
1.67 markus 66: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 67: options->ignore_rhosts = -1;
68: options->ignore_user_known_hosts = -1;
69: options->print_motd = -1;
1.72 stevesk 70: options->print_lastlog = -1;
1.25 markus 71: options->x11_forwarding = -1;
72: options->x11_display_offset = -1;
1.99 stevesk 73: options->x11_use_localhost = -1;
1.42 markus 74: options->xauth_location = NULL;
1.25 markus 75: options->strict_modes = -1;
1.129 markus 76: options->tcp_keep_alive = -1;
1.101 markus 77: options->log_facility = SYSLOG_FACILITY_NOT_SET;
78: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.25 markus 79: options->rhosts_rsa_authentication = -1;
1.75 markus 80: options->hostbased_authentication = -1;
81: options->hostbased_uses_name_from_packet_only = -1;
1.25 markus 82: options->rsa_authentication = -1;
1.54 markus 83: options->pubkey_authentication = -1;
1.25 markus 84: options->kerberos_authentication = -1;
85: options->kerberos_or_local_passwd = -1;
86: options->kerberos_ticket_cleanup = -1;
1.130 jakob 87: options->kerberos_get_afs_token = -1;
1.125 markus 88: options->gss_authentication=-1;
89: options->gss_cleanup_creds = -1;
1.25 markus 90: options->password_authentication = -1;
1.52 markus 91: options->kbd_interactive_authentication = -1;
1.80 markus 92: options->challenge_response_authentication = -1;
1.25 markus 93: options->permit_empty_passwd = -1;
1.113 markus 94: options->permit_user_env = -1;
1.25 markus 95: options->use_login = -1;
1.111 markus 96: options->compression = -1;
1.53 markus 97: options->allow_tcp_forwarding = -1;
1.178 pyr 98: options->allow_agent_forwarding = -1;
1.25 markus 99: options->num_allow_users = 0;
100: options->num_deny_users = 0;
101: options->num_allow_groups = 0;
102: options->num_deny_groups = 0;
1.33 markus 103: options->ciphers = NULL;
1.66 markus 104: options->macs = NULL;
1.211 ! djm 105: options->kex_algorithms = NULL;
1.33 markus 106: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 107: options->gateway_ports = -1;
1.43 jakob 108: options->num_subsystems = 0;
1.50 markus 109: options->max_startups_begin = -1;
110: options->max_startups_rate = -1;
1.46 markus 111: options->max_startups = -1;
1.133 dtucker 112: options->max_authtries = -1;
1.180 djm 113: options->max_sessions = -1;
1.57 markus 114: options->banner = NULL;
1.122 markus 115: options->use_dns = -1;
1.77 beck 116: options->client_alive_interval = -1;
117: options->client_alive_count_max = -1;
1.82 markus 118: options->authorized_keys_file = NULL;
119: options->authorized_keys_file2 = NULL;
1.131 djm 120: options->num_accept_env = 0;
1.145 reyk 121: options->permit_tun = -1;
1.159 dtucker 122: options->num_permitted_opens = -1;
1.158 dtucker 123: options->adm_forced_command = NULL;
1.176 djm 124: options->chroot_directory = NULL;
1.190 djm 125: options->zero_knowledge_password_authentication = -1;
1.204 djm 126: options->revoked_keys_file = NULL;
127: options->trusted_user_ca_keys = NULL;
1.208 djm 128: options->authorized_principals_file = NULL;
1.1 deraadt 129: }
130:
1.34 markus 131: void
1.25 markus 132: fill_default_server_options(ServerOptions *options)
1.1 deraadt 133: {
1.54 markus 134: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 135: options->protocol = SSH_PROTO_2;
1.54 markus 136: if (options->num_host_key_files == 0) {
137: /* fill default hostkeys for protocols */
138: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 139: options->host_key_files[options->num_host_key_files++] =
140: _PATH_HOST_KEY_FILE;
141: if (options->protocol & SSH_PROTO_2) {
142: options->host_key_files[options->num_host_key_files++] =
143: _PATH_HOST_RSA_KEY_FILE;
144: options->host_key_files[options->num_host_key_files++] =
145: _PATH_HOST_DSA_KEY_FILE;
1.210 naddy 146: options->host_key_files[options->num_host_key_files++] =
147: _PATH_HOST_ECDSA_KEY_FILE;
1.97 stevesk 148: }
1.54 markus 149: }
1.203 djm 150: /* No certificates by default */
1.29 markus 151: if (options->num_ports == 0)
152: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
153: if (options->listen_addrs == NULL)
1.76 stevesk 154: add_listen_addr(options, NULL, 0);
1.36 markus 155: if (options->pid_file == NULL)
1.60 markus 156: options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
1.25 markus 157: if (options->server_key_bits == -1)
1.185 djm 158: options->server_key_bits = 1024;
1.25 markus 159: if (options->login_grace_time == -1)
1.115 stevesk 160: options->login_grace_time = 120;
1.25 markus 161: if (options->key_regeneration_time == -1)
162: options->key_regeneration_time = 3600;
1.67 markus 163: if (options->permit_root_login == PERMIT_NOT_SET)
164: options->permit_root_login = PERMIT_YES;
1.25 markus 165: if (options->ignore_rhosts == -1)
1.30 markus 166: options->ignore_rhosts = 1;
1.25 markus 167: if (options->ignore_user_known_hosts == -1)
168: options->ignore_user_known_hosts = 0;
169: if (options->print_motd == -1)
170: options->print_motd = 1;
1.72 stevesk 171: if (options->print_lastlog == -1)
172: options->print_lastlog = 1;
1.25 markus 173: if (options->x11_forwarding == -1)
1.30 markus 174: options->x11_forwarding = 0;
1.25 markus 175: if (options->x11_display_offset == -1)
1.30 markus 176: options->x11_display_offset = 10;
1.99 stevesk 177: if (options->x11_use_localhost == -1)
178: options->x11_use_localhost = 1;
1.42 markus 179: if (options->xauth_location == NULL)
1.83 markus 180: options->xauth_location = _PATH_XAUTH;
1.25 markus 181: if (options->strict_modes == -1)
182: options->strict_modes = 1;
1.129 markus 183: if (options->tcp_keep_alive == -1)
184: options->tcp_keep_alive = 1;
1.101 markus 185: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 186: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 187: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 188: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 189: if (options->rhosts_rsa_authentication == -1)
1.30 markus 190: options->rhosts_rsa_authentication = 0;
1.75 markus 191: if (options->hostbased_authentication == -1)
192: options->hostbased_authentication = 0;
193: if (options->hostbased_uses_name_from_packet_only == -1)
194: options->hostbased_uses_name_from_packet_only = 0;
1.25 markus 195: if (options->rsa_authentication == -1)
196: options->rsa_authentication = 1;
1.54 markus 197: if (options->pubkey_authentication == -1)
198: options->pubkey_authentication = 1;
1.25 markus 199: if (options->kerberos_authentication == -1)
1.107 markus 200: options->kerberos_authentication = 0;
1.25 markus 201: if (options->kerberos_or_local_passwd == -1)
202: options->kerberos_or_local_passwd = 1;
203: if (options->kerberos_ticket_cleanup == -1)
204: options->kerberos_ticket_cleanup = 1;
1.130 jakob 205: if (options->kerberos_get_afs_token == -1)
206: options->kerberos_get_afs_token = 0;
1.125 markus 207: if (options->gss_authentication == -1)
208: options->gss_authentication = 0;
209: if (options->gss_cleanup_creds == -1)
210: options->gss_cleanup_creds = 1;
1.25 markus 211: if (options->password_authentication == -1)
212: options->password_authentication = 1;
1.52 markus 213: if (options->kbd_interactive_authentication == -1)
214: options->kbd_interactive_authentication = 0;
1.80 markus 215: if (options->challenge_response_authentication == -1)
216: options->challenge_response_authentication = 1;
1.25 markus 217: if (options->permit_empty_passwd == -1)
1.30 markus 218: options->permit_empty_passwd = 0;
1.113 markus 219: if (options->permit_user_env == -1)
220: options->permit_user_env = 0;
1.25 markus 221: if (options->use_login == -1)
222: options->use_login = 0;
1.111 markus 223: if (options->compression == -1)
1.143 markus 224: options->compression = COMP_DELAYED;
1.53 markus 225: if (options->allow_tcp_forwarding == -1)
226: options->allow_tcp_forwarding = 1;
1.178 pyr 227: if (options->allow_agent_forwarding == -1)
228: options->allow_agent_forwarding = 1;
1.38 markus 229: if (options->gateway_ports == -1)
230: options->gateway_ports = 0;
1.46 markus 231: if (options->max_startups == -1)
232: options->max_startups = 10;
1.50 markus 233: if (options->max_startups_rate == -1)
234: options->max_startups_rate = 100; /* 100% */
235: if (options->max_startups_begin == -1)
236: options->max_startups_begin = options->max_startups;
1.133 dtucker 237: if (options->max_authtries == -1)
238: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 239: if (options->max_sessions == -1)
240: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 241: if (options->use_dns == -1)
242: options->use_dns = 1;
1.77 beck 243: if (options->client_alive_interval == -1)
1.95 deraadt 244: options->client_alive_interval = 0;
1.77 beck 245: if (options->client_alive_count_max == -1)
246: options->client_alive_count_max = 3;
1.90 markus 247: if (options->authorized_keys_file2 == NULL) {
248: /* authorized_keys_file2 falls back to authorized_keys_file */
249: if (options->authorized_keys_file != NULL)
250: options->authorized_keys_file2 = options->authorized_keys_file;
251: else
252: options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2;
253: }
254: if (options->authorized_keys_file == NULL)
255: options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
1.145 reyk 256: if (options->permit_tun == -1)
1.146 reyk 257: options->permit_tun = SSH_TUNMODE_NO;
1.190 djm 258: if (options->zero_knowledge_password_authentication == -1)
259: options->zero_knowledge_password_authentication = 0;
1.102 provos 260:
1.110 markus 261: /* Turn privilege separation on by default */
1.102 provos 262: if (use_privsep == -1)
1.110 markus 263: use_privsep = 1;
1.1 deraadt 264: }
265:
266: /* Keyword tokens. */
1.25 markus 267: typedef enum {
268: sBadOption, /* == unknown option */
269: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
270: sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 271: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 272: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 273: sKerberosGetAFSToken,
1.123 markus 274: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 275: sPasswordAuthentication, sKbdInteractiveAuthentication,
276: sListenAddress, sAddressFamily,
1.72 stevesk 277: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 278: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.129 markus 279: sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 280: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.53 markus 281: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 282: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.133 dtucker 283: sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem,
1.180 djm 284: sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 285: sBanner, sUseDNS, sHostbasedAuthentication,
1.95 deraadt 286: sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
1.89 jakob 287: sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
1.145 reyk 288: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 289: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 290: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.203 djm 291: sZeroKnowledgePasswordAuthentication, sHostCertificate,
1.208 djm 292: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.211 ! djm 293: sKexAlgorithms,
1.121 jakob 294: sDeprecated, sUnsupported
1.1 deraadt 295: } ServerOpCodes;
296:
1.153 dtucker 297: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
298: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
299: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
300:
1.1 deraadt 301: /* Textual representation of the tokens. */
1.25 markus 302: static struct {
303: const char *name;
304: ServerOpCodes opcode;
1.153 dtucker 305: u_int flags;
1.25 markus 306: } keywords[] = {
1.153 dtucker 307: { "port", sPort, SSHCFG_GLOBAL },
308: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
309: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
310: { "pidfile", sPidFile, SSHCFG_GLOBAL },
311: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
312: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
313: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 314: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 315: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
316: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
317: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 318: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
319: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 320: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.168 dtucker 321: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
322: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.153 dtucker 323: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 324: #ifdef KRB5
1.168 dtucker 325: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 326: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
327: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
328: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 329: #else
1.168 dtucker 330: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 331: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
332: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
333: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 334: #endif
1.153 dtucker 335: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
336: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 337: #ifdef GSSAPI
1.168 dtucker 338: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 339: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 340: #else
1.168 dtucker 341: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 342: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 343: #endif
1.168 dtucker 344: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
345: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 346: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 347: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
1.190 djm 348: #ifdef JPAKE
349: { "zeroknowledgepasswordauthentication", sZeroKnowledgePasswordAuthentication, SSHCFG_ALL },
350: #else
351: { "zeroknowledgepasswordauthentication", sUnsupported, SSHCFG_ALL },
352: #endif
1.153 dtucker 353: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
354: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
355: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
356: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
357: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
358: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
359: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 360: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
361: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
362: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 363: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
364: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 365: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 366: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
367: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
368: { "compression", sCompression, SSHCFG_GLOBAL },
369: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
370: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
371: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 372: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.153 dtucker 373: { "allowusers", sAllowUsers, SSHCFG_GLOBAL },
374: { "denyusers", sDenyUsers, SSHCFG_GLOBAL },
375: { "allowgroups", sAllowGroups, SSHCFG_GLOBAL },
376: { "denygroups", sDenyGroups, SSHCFG_GLOBAL },
377: { "ciphers", sCiphers, SSHCFG_GLOBAL },
378: { "macs", sMacs, SSHCFG_GLOBAL },
379: { "protocol", sProtocol, SSHCFG_GLOBAL },
380: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
381: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
382: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 383: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 384: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 385: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 386: { "usedns", sUseDNS, SSHCFG_GLOBAL },
387: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
388: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
389: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
390: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
1.209 djm 391: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
392: { "authorizedkeysfile2", sAuthorizedKeysFile2, SSHCFG_ALL },
1.153 dtucker 393: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
394: { "acceptenv", sAcceptEnv, SSHCFG_GLOBAL },
1.209 djm 395: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.153 dtucker 396: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 397: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 398: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 399: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 400: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 401: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
402: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 403: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 ! djm 404: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.153 dtucker 405: { NULL, sBadOption, 0 }
1.1 deraadt 406: };
407:
1.182 dtucker 408: static struct {
409: int val;
410: char *text;
411: } tunmode_desc[] = {
412: { SSH_TUNMODE_NO, "no" },
413: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
414: { SSH_TUNMODE_ETHERNET, "ethernet" },
415: { SSH_TUNMODE_YES, "yes" },
416: { -1, NULL }
417: };
418:
1.27 markus 419: /*
1.73 stevesk 420: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 421: */
1.1 deraadt 422:
1.34 markus 423: static ServerOpCodes
1.25 markus 424: parse_token(const char *cp, const char *filename,
1.153 dtucker 425: int linenum, u_int *flags)
1.1 deraadt 426: {
1.55 markus 427: u_int i;
1.1 deraadt 428:
1.25 markus 429: for (i = 0; keywords[i].name; i++)
1.153 dtucker 430: if (strcasecmp(cp, keywords[i].name) == 0) {
431: *flags = keywords[i].flags;
1.25 markus 432: return keywords[i].opcode;
1.153 dtucker 433: }
1.25 markus 434:
1.78 stevesk 435: error("%s: line %d: Bad configuration option: %s",
436: filename, linenum, cp);
1.25 markus 437: return sBadOption;
1.1 deraadt 438: }
439:
1.202 djm 440: char *
441: derelativise_path(const char *path)
442: {
1.207 djm 443: char *expanded, *ret, cwd[MAXPATHLEN];
1.202 djm 444:
445: expanded = tilde_expand_filename(path, getuid());
446: if (*expanded == '/')
447: return expanded;
1.207 djm 448: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 449: fatal("%s: getcwd: %s", __func__, strerror(errno));
450: xasprintf(&ret, "%s/%s", cwd, expanded);
451: xfree(expanded);
452: return ret;
453: }
454:
1.84 itojun 455: static void
1.194 djm 456: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 457: {
1.142 djm 458: u_int i;
1.74 stevesk 459:
460: if (options->num_ports == 0)
461: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 462: if (options->address_family == -1)
463: options->address_family = AF_UNSPEC;
1.76 stevesk 464: if (port == 0)
1.74 stevesk 465: for (i = 0; i < options->num_ports; i++)
466: add_one_listen_addr(options, addr, options->ports[i]);
467: else
1.76 stevesk 468: add_one_listen_addr(options, addr, port);
1.74 stevesk 469: }
470:
1.84 itojun 471: static void
1.194 djm 472: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 473: {
474: struct addrinfo hints, *ai, *aitop;
475: char strport[NI_MAXSERV];
476: int gaierr;
477:
1.74 stevesk 478: memset(&hints, 0, sizeof(hints));
1.138 djm 479: hints.ai_family = options->address_family;
1.74 stevesk 480: hints.ai_socktype = SOCK_STREAM;
481: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 482: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 483: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
484: fatal("bad addr or host: %s (%s)",
485: addr ? addr : "<NULL>",
1.173 dtucker 486: ssh_gai_strerror(gaierr));
1.74 stevesk 487: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
488: ;
489: ai->ai_next = options->listen_addrs;
490: options->listen_addrs = aitop;
1.29 markus 491: }
492:
1.153 dtucker 493: /*
494: * The strategy for the Match blocks is that the config file is parsed twice.
495: *
496: * The first time is at startup. activep is initialized to 1 and the
497: * directives in the global context are processed and acted on. Hitting a
498: * Match directive unsets activep and the directives inside the block are
499: * checked for syntax only.
500: *
501: * The second time is after a connection has been established but before
502: * authentication. activep is initialized to 2 and global config directives
503: * are ignored since they have already been processed. If the criteria in a
504: * Match block is met, activep is set and the subsequent directives
505: * processed and actioned until EOF or another Match block unsets it. Any
506: * options set are copied into the main server config.
507: *
508: * Potential additions/improvements:
509: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
510: *
511: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
512: * Match Address 192.168.0.*
513: * Tag trusted
514: * Match Group wheel
515: * Tag trusted
516: * Match Tag trusted
517: * AllowTcpForwarding yes
518: * GatewayPorts clientspecified
519: * [...]
520: *
521: * - Add a PermittedChannelRequests directive
522: * Match Group shell
523: * PermittedChannelRequests session,forwarded-tcpip
524: */
525:
526: static int
1.165 dtucker 527: match_cfg_line_group(const char *grps, int line, const char *user)
528: {
529: int result = 0;
530: struct passwd *pw;
531:
532: if (user == NULL)
533: goto out;
534:
535: if ((pw = getpwnam(user)) == NULL) {
536: debug("Can't match group at line %d because user %.100s does "
537: "not exist", line, user);
538: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
539: debug("Can't Match group because user %.100s not in any group "
540: "at line %d", user, line);
1.186 djm 541: } else if (ga_match_pattern_list(grps) != 1) {
542: debug("user %.100s does not match group list %.100s at line %d",
543: user, grps, line);
1.165 dtucker 544: } else {
1.186 djm 545: debug("user %.100s matched group list %.100s at line %d", user,
546: grps, line);
1.165 dtucker 547: result = 1;
548: }
549: out:
550: ga_free();
551: return result;
552: }
553:
554: static int
1.153 dtucker 555: match_cfg_line(char **condition, int line, const char *user, const char *host,
556: const char *address)
557: {
558: int result = 1;
559: char *arg, *attrib, *cp = *condition;
560: size_t len;
561:
562: if (user == NULL)
563: debug3("checking syntax for 'Match %s'", cp);
564: else
565: debug3("checking match for '%s' user %s host %s addr %s", cp,
566: user ? user : "(null)", host ? host : "(null)",
567: address ? address : "(null)");
568:
569: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
570: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
571: error("Missing Match criteria for %s", attrib);
572: return -1;
573: }
574: len = strlen(arg);
575: if (strcasecmp(attrib, "user") == 0) {
576: if (!user) {
577: result = 0;
578: continue;
579: }
580: if (match_pattern_list(user, arg, len, 0) != 1)
581: result = 0;
582: else
583: debug("user %.100s matched 'User %.100s' at "
584: "line %d", user, arg, line);
1.165 dtucker 585: } else if (strcasecmp(attrib, "group") == 0) {
586: switch (match_cfg_line_group(arg, line, user)) {
587: case -1:
588: return -1;
589: case 0:
590: result = 0;
591: }
1.153 dtucker 592: } else if (strcasecmp(attrib, "host") == 0) {
593: if (!host) {
594: result = 0;
595: continue;
596: }
597: if (match_hostname(host, arg, len) != 1)
598: result = 0;
599: else
600: debug("connection from %.100s matched 'Host "
601: "%.100s' at line %d", host, arg, line);
602: } else if (strcasecmp(attrib, "address") == 0) {
1.181 djm 603: switch (addr_match_list(address, arg)) {
604: case 1:
605: debug("connection from %.100s matched 'Address "
606: "%.100s' at line %d", address, arg, line);
607: break;
608: case 0:
1.183 djm 609: case -1:
1.153 dtucker 610: result = 0;
1.181 djm 611: break;
1.183 djm 612: case -2:
1.181 djm 613: return -1;
1.153 dtucker 614: }
615: } else {
616: error("Unsupported Match attribute %s", attrib);
617: return -1;
618: }
619: }
620: if (user != NULL)
621: debug3("match %sfound", result ? "" : "not ");
622: *condition = cp;
623: return result;
624: }
625:
1.158 dtucker 626: #define WHITESPACE " \t\r\n"
627:
1.94 markus 628: int
629: process_server_config_line(ServerOptions *options, char *line,
1.153 dtucker 630: const char *filename, int linenum, int *activep, const char *user,
631: const char *host, const char *address)
1.1 deraadt 632: {
1.74 stevesk 633: char *cp, **charptr, *arg, *p;
1.153 dtucker 634: int cmdline = 0, *intptr, value, n;
1.174 dtucker 635: SyslogFacility *log_facility_ptr;
636: LogLevel *log_level_ptr;
1.25 markus 637: ServerOpCodes opcode;
1.194 djm 638: int port;
1.153 dtucker 639: u_int i, flags = 0;
1.151 djm 640: size_t len;
1.25 markus 641:
1.94 markus 642: cp = line;
1.148 dtucker 643: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 644: return 0;
1.94 markus 645: /* Ignore leading whitespace */
646: if (*arg == '\0')
647: arg = strdelim(&cp);
648: if (!arg || !*arg || *arg == '#')
649: return 0;
650: intptr = NULL;
651: charptr = NULL;
1.153 dtucker 652: opcode = parse_token(arg, filename, linenum, &flags);
653:
654: if (activep == NULL) { /* We are processing a command line directive */
655: cmdline = 1;
656: activep = &cmdline;
657: }
658: if (*activep && opcode != sMatch)
659: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
660: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
661: if (user == NULL) {
662: fatal("%s line %d: Directive '%s' is not allowed "
663: "within a Match block", filename, linenum, arg);
664: } else { /* this is a directive we have already processed */
665: while (arg)
666: arg = strdelim(&cp);
667: return 0;
668: }
669: }
670:
1.94 markus 671: switch (opcode) {
672: case sBadOption:
673: return -1;
674: case sPort:
675: /* ignore ports from configfile if cmdline specifies ports */
676: if (options->ports_from_cmdline)
677: return 0;
678: if (options->listen_addrs != NULL)
679: fatal("%s line %d: ports must be specified before "
1.98 stevesk 680: "ListenAddress.", filename, linenum);
1.94 markus 681: if (options->num_ports >= MAX_PORTS)
682: fatal("%s line %d: too many ports.",
683: filename, linenum);
1.48 provos 684: arg = strdelim(&cp);
1.94 markus 685: if (!arg || *arg == '\0')
686: fatal("%s line %d: missing port number.",
687: filename, linenum);
688: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 689: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 690: fatal("%s line %d: Badly formatted port number.",
691: filename, linenum);
692: break;
1.29 markus 693:
1.94 markus 694: case sServerKeyBits:
695: intptr = &options->server_key_bits;
1.180 djm 696: parse_int:
1.94 markus 697: arg = strdelim(&cp);
698: if (!arg || *arg == '\0')
699: fatal("%s line %d: missing integer value.",
700: filename, linenum);
701: value = atoi(arg);
1.153 dtucker 702: if (*activep && *intptr == -1)
1.94 markus 703: *intptr = value;
704: break;
1.25 markus 705:
1.94 markus 706: case sLoginGraceTime:
707: intptr = &options->login_grace_time;
1.180 djm 708: parse_time:
1.94 markus 709: arg = strdelim(&cp);
710: if (!arg || *arg == '\0')
711: fatal("%s line %d: missing time value.",
712: filename, linenum);
713: if ((value = convtime(arg)) == -1)
714: fatal("%s line %d: invalid time value.",
715: filename, linenum);
716: if (*intptr == -1)
717: *intptr = value;
718: break;
719:
720: case sKeyRegenerationTime:
721: intptr = &options->key_regeneration_time;
722: goto parse_time;
723:
724: case sListenAddress:
725: arg = strdelim(&cp);
1.139 djm 726: if (arg == NULL || *arg == '\0')
727: fatal("%s line %d: missing address",
1.94 markus 728: filename, linenum);
1.144 dtucker 729: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
730: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
731: && strchr(p+1, ':') != NULL) {
732: add_listen_addr(options, arg, 0);
733: break;
734: }
1.139 djm 735: p = hpdelim(&arg);
736: if (p == NULL)
737: fatal("%s line %d: bad address:port usage",
738: filename, linenum);
739: p = cleanhostname(p);
740: if (arg == NULL)
741: port = 0;
1.194 djm 742: else if ((port = a2port(arg)) <= 0)
1.139 djm 743: fatal("%s line %d: bad port number", filename, linenum);
744:
745: add_listen_addr(options, p, port);
1.25 markus 746:
1.138 djm 747: break;
748:
749: case sAddressFamily:
750: arg = strdelim(&cp);
1.141 markus 751: if (!arg || *arg == '\0')
752: fatal("%s line %d: missing address family.",
753: filename, linenum);
1.138 djm 754: intptr = &options->address_family;
755: if (options->listen_addrs != NULL)
756: fatal("%s line %d: address family must be specified before "
757: "ListenAddress.", filename, linenum);
758: if (strcasecmp(arg, "inet") == 0)
759: value = AF_INET;
760: else if (strcasecmp(arg, "inet6") == 0)
761: value = AF_INET6;
762: else if (strcasecmp(arg, "any") == 0)
763: value = AF_UNSPEC;
764: else
765: fatal("%s line %d: unsupported address family \"%s\".",
766: filename, linenum, arg);
767: if (*intptr == -1)
768: *intptr = value;
1.94 markus 769: break;
770:
771: case sHostKeyFile:
772: intptr = &options->num_host_key_files;
773: if (*intptr >= MAX_HOSTKEYS)
774: fatal("%s line %d: too many host keys specified (max %d).",
775: filename, linenum, MAX_HOSTKEYS);
776: charptr = &options->host_key_files[*intptr];
1.180 djm 777: parse_filename:
1.94 markus 778: arg = strdelim(&cp);
779: if (!arg || *arg == '\0')
780: fatal("%s line %d: missing file name.",
781: filename, linenum);
1.153 dtucker 782: if (*activep && *charptr == NULL) {
1.202 djm 783: *charptr = derelativise_path(arg);
1.94 markus 784: /* increase optional counter */
785: if (intptr != NULL)
786: *intptr = *intptr + 1;
787: }
788: break;
1.76 stevesk 789:
1.203 djm 790: case sHostCertificate:
791: intptr = &options->num_host_cert_files;
792: if (*intptr >= MAX_HOSTKEYS)
793: fatal("%s line %d: too many host certificates "
794: "specified (max %d).", filename, linenum,
795: MAX_HOSTCERTS);
796: charptr = &options->host_cert_files[*intptr];
797: goto parse_filename;
798: break;
799:
1.94 markus 800: case sPidFile:
801: charptr = &options->pid_file;
802: goto parse_filename;
1.25 markus 803:
1.94 markus 804: case sPermitRootLogin:
805: intptr = &options->permit_root_login;
806: arg = strdelim(&cp);
807: if (!arg || *arg == '\0')
808: fatal("%s line %d: missing yes/"
809: "without-password/forced-commands-only/no "
810: "argument.", filename, linenum);
811: value = 0; /* silence compiler */
812: if (strcmp(arg, "without-password") == 0)
813: value = PERMIT_NO_PASSWD;
814: else if (strcmp(arg, "forced-commands-only") == 0)
815: value = PERMIT_FORCED_ONLY;
816: else if (strcmp(arg, "yes") == 0)
817: value = PERMIT_YES;
818: else if (strcmp(arg, "no") == 0)
819: value = PERMIT_NO;
820: else
821: fatal("%s line %d: Bad yes/"
822: "without-password/forced-commands-only/no "
823: "argument: %s", filename, linenum, arg);
1.175 dtucker 824: if (*activep && *intptr == -1)
1.94 markus 825: *intptr = value;
826: break;
1.36 markus 827:
1.94 markus 828: case sIgnoreRhosts:
829: intptr = &options->ignore_rhosts;
1.180 djm 830: parse_flag:
1.94 markus 831: arg = strdelim(&cp);
832: if (!arg || *arg == '\0')
833: fatal("%s line %d: missing yes/no argument.",
834: filename, linenum);
835: value = 0; /* silence compiler */
836: if (strcmp(arg, "yes") == 0)
837: value = 1;
838: else if (strcmp(arg, "no") == 0)
839: value = 0;
840: else
841: fatal("%s line %d: Bad yes/no argument: %s",
842: filename, linenum, arg);
1.153 dtucker 843: if (*activep && *intptr == -1)
1.94 markus 844: *intptr = value;
845: break;
846:
847: case sIgnoreUserKnownHosts:
848: intptr = &options->ignore_user_known_hosts;
849: goto parse_flag;
850:
851: case sRhostsRSAAuthentication:
852: intptr = &options->rhosts_rsa_authentication;
853: goto parse_flag;
854:
855: case sHostbasedAuthentication:
856: intptr = &options->hostbased_authentication;
857: goto parse_flag;
858:
859: case sHostbasedUsesNameFromPacketOnly:
860: intptr = &options->hostbased_uses_name_from_packet_only;
861: goto parse_flag;
862:
863: case sRSAAuthentication:
864: intptr = &options->rsa_authentication;
865: goto parse_flag;
866:
867: case sPubkeyAuthentication:
868: intptr = &options->pubkey_authentication;
869: goto parse_flag;
1.119 jakob 870:
1.94 markus 871: case sKerberosAuthentication:
872: intptr = &options->kerberos_authentication;
873: goto parse_flag;
874:
875: case sKerberosOrLocalPasswd:
876: intptr = &options->kerberos_or_local_passwd;
877: goto parse_flag;
878:
879: case sKerberosTicketCleanup:
880: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 881: goto parse_flag;
882:
883: case sKerberosGetAFSToken:
884: intptr = &options->kerberos_get_afs_token;
1.125 markus 885: goto parse_flag;
886:
887: case sGssAuthentication:
888: intptr = &options->gss_authentication;
889: goto parse_flag;
890:
891: case sGssCleanupCreds:
892: intptr = &options->gss_cleanup_creds;
1.94 markus 893: goto parse_flag;
894:
895: case sPasswordAuthentication:
896: intptr = &options->password_authentication;
897: goto parse_flag;
898:
1.190 djm 899: case sZeroKnowledgePasswordAuthentication:
900: intptr = &options->zero_knowledge_password_authentication;
901: goto parse_flag;
902:
1.94 markus 903: case sKbdInteractiveAuthentication:
904: intptr = &options->kbd_interactive_authentication;
905: goto parse_flag;
906:
907: case sChallengeResponseAuthentication:
908: intptr = &options->challenge_response_authentication;
909: goto parse_flag;
910:
911: case sPrintMotd:
912: intptr = &options->print_motd;
913: goto parse_flag;
914:
915: case sPrintLastLog:
916: intptr = &options->print_lastlog;
917: goto parse_flag;
918:
919: case sX11Forwarding:
920: intptr = &options->x11_forwarding;
921: goto parse_flag;
922:
923: case sX11DisplayOffset:
924: intptr = &options->x11_display_offset;
925: goto parse_int;
1.99 stevesk 926:
927: case sX11UseLocalhost:
928: intptr = &options->x11_use_localhost;
929: goto parse_flag;
1.94 markus 930:
931: case sXAuthLocation:
932: charptr = &options->xauth_location;
933: goto parse_filename;
934:
935: case sStrictModes:
936: intptr = &options->strict_modes;
937: goto parse_flag;
938:
1.129 markus 939: case sTCPKeepAlive:
940: intptr = &options->tcp_keep_alive;
1.94 markus 941: goto parse_flag;
942:
943: case sEmptyPasswd:
944: intptr = &options->permit_empty_passwd;
1.113 markus 945: goto parse_flag;
946:
947: case sPermitUserEnvironment:
948: intptr = &options->permit_user_env;
1.94 markus 949: goto parse_flag;
950:
951: case sUseLogin:
952: intptr = &options->use_login;
1.111 markus 953: goto parse_flag;
954:
955: case sCompression:
956: intptr = &options->compression;
1.143 markus 957: arg = strdelim(&cp);
958: if (!arg || *arg == '\0')
959: fatal("%s line %d: missing yes/no/delayed "
960: "argument.", filename, linenum);
961: value = 0; /* silence compiler */
962: if (strcmp(arg, "delayed") == 0)
963: value = COMP_DELAYED;
964: else if (strcmp(arg, "yes") == 0)
965: value = COMP_ZLIB;
966: else if (strcmp(arg, "no") == 0)
967: value = COMP_NONE;
968: else
969: fatal("%s line %d: Bad yes/no/delayed "
970: "argument: %s", filename, linenum, arg);
971: if (*intptr == -1)
972: *intptr = value;
973: break;
1.94 markus 974:
975: case sGatewayPorts:
976: intptr = &options->gateway_ports;
1.139 djm 977: arg = strdelim(&cp);
978: if (!arg || *arg == '\0')
979: fatal("%s line %d: missing yes/no/clientspecified "
980: "argument.", filename, linenum);
981: value = 0; /* silence compiler */
982: if (strcmp(arg, "clientspecified") == 0)
983: value = 2;
984: else if (strcmp(arg, "yes") == 0)
985: value = 1;
986: else if (strcmp(arg, "no") == 0)
987: value = 0;
988: else
989: fatal("%s line %d: Bad yes/no/clientspecified "
990: "argument: %s", filename, linenum, arg);
1.169 dtucker 991: if (*activep && *intptr == -1)
1.139 djm 992: *intptr = value;
993: break;
1.25 markus 994:
1.122 markus 995: case sUseDNS:
996: intptr = &options->use_dns;
1.94 markus 997: goto parse_flag;
1.53 markus 998:
1.94 markus 999: case sLogFacility:
1.174 dtucker 1000: log_facility_ptr = &options->log_facility;
1.94 markus 1001: arg = strdelim(&cp);
1002: value = log_facility_number(arg);
1.101 markus 1003: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1004: fatal("%.200s line %d: unsupported log facility '%s'",
1005: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1006: if (*log_facility_ptr == -1)
1007: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1008: break;
1.25 markus 1009:
1.94 markus 1010: case sLogLevel:
1.174 dtucker 1011: log_level_ptr = &options->log_level;
1.94 markus 1012: arg = strdelim(&cp);
1013: value = log_level_number(arg);
1.101 markus 1014: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1015: fatal("%.200s line %d: unsupported log level '%s'",
1016: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1017: if (*log_level_ptr == -1)
1018: *log_level_ptr = (LogLevel) value;
1.94 markus 1019: break;
1020:
1021: case sAllowTcpForwarding:
1022: intptr = &options->allow_tcp_forwarding;
1023: goto parse_flag;
1.102 provos 1024:
1.178 pyr 1025: case sAllowAgentForwarding:
1026: intptr = &options->allow_agent_forwarding;
1027: goto parse_flag;
1028:
1.102 provos 1029: case sUsePrivilegeSeparation:
1030: intptr = &use_privsep;
1031: goto parse_flag;
1.94 markus 1032:
1033: case sAllowUsers:
1034: while ((arg = strdelim(&cp)) && *arg != '\0') {
1035: if (options->num_allow_users >= MAX_ALLOW_USERS)
1036: fatal("%s line %d: too many allow users.",
1037: filename, linenum);
1.112 deraadt 1038: options->allow_users[options->num_allow_users++] =
1039: xstrdup(arg);
1.94 markus 1040: }
1041: break;
1.25 markus 1042:
1.94 markus 1043: case sDenyUsers:
1044: while ((arg = strdelim(&cp)) && *arg != '\0') {
1045: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1046: fatal("%s line %d: too many deny users.",
1.94 markus 1047: filename, linenum);
1.112 deraadt 1048: options->deny_users[options->num_deny_users++] =
1049: xstrdup(arg);
1.94 markus 1050: }
1051: break;
1.25 markus 1052:
1.94 markus 1053: case sAllowGroups:
1054: while ((arg = strdelim(&cp)) && *arg != '\0') {
1055: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1056: fatal("%s line %d: too many allow groups.",
1057: filename, linenum);
1.112 deraadt 1058: options->allow_groups[options->num_allow_groups++] =
1059: xstrdup(arg);
1.94 markus 1060: }
1061: break;
1.33 markus 1062:
1.94 markus 1063: case sDenyGroups:
1064: while ((arg = strdelim(&cp)) && *arg != '\0') {
1065: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1066: fatal("%s line %d: too many deny groups.",
1067: filename, linenum);
1068: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1069: }
1070: break;
1.66 markus 1071:
1.94 markus 1072: case sCiphers:
1073: arg = strdelim(&cp);
1074: if (!arg || *arg == '\0')
1075: fatal("%s line %d: Missing argument.", filename, linenum);
1076: if (!ciphers_valid(arg))
1077: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1078: filename, linenum, arg ? arg : "<NONE>");
1079: if (options->ciphers == NULL)
1080: options->ciphers = xstrdup(arg);
1081: break;
1.33 markus 1082:
1.94 markus 1083: case sMacs:
1084: arg = strdelim(&cp);
1085: if (!arg || *arg == '\0')
1086: fatal("%s line %d: Missing argument.", filename, linenum);
1087: if (!mac_valid(arg))
1088: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1089: filename, linenum, arg ? arg : "<NONE>");
1090: if (options->macs == NULL)
1091: options->macs = xstrdup(arg);
1.211 ! djm 1092: break;
! 1093:
! 1094: case sKexAlgorithms:
! 1095: arg = strdelim(&cp);
! 1096: if (!arg || *arg == '\0')
! 1097: fatal("%s line %d: Missing argument.",
! 1098: filename, linenum);
! 1099: if (!kex_names_valid(arg))
! 1100: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
! 1101: filename, linenum, arg ? arg : "<NONE>");
! 1102: if (options->kex_algorithms == NULL)
! 1103: options->kex_algorithms = xstrdup(arg);
1.94 markus 1104: break;
1.43 jakob 1105:
1.94 markus 1106: case sProtocol:
1107: intptr = &options->protocol;
1108: arg = strdelim(&cp);
1109: if (!arg || *arg == '\0')
1110: fatal("%s line %d: Missing argument.", filename, linenum);
1111: value = proto_spec(arg);
1112: if (value == SSH_PROTO_UNKNOWN)
1113: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1114: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1115: if (*intptr == SSH_PROTO_UNKNOWN)
1116: *intptr = value;
1117: break;
1118:
1119: case sSubsystem:
1120: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1121: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1122: filename, linenum);
1.94 markus 1123: }
1124: arg = strdelim(&cp);
1125: if (!arg || *arg == '\0')
1126: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1127: filename, linenum);
1.153 dtucker 1128: if (!*activep) {
1129: arg = strdelim(&cp);
1130: break;
1131: }
1.94 markus 1132: for (i = 0; i < options->num_subsystems; i++)
1133: if (strcmp(arg, options->subsystem_name[i]) == 0)
1134: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1135: filename, linenum, arg);
1.94 markus 1136: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1137: arg = strdelim(&cp);
1138: if (!arg || *arg == '\0')
1139: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1140: filename, linenum);
1.94 markus 1141: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1142:
1143: /* Collect arguments (separate to executable) */
1144: p = xstrdup(arg);
1145: len = strlen(p) + 1;
1146: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1147: len += 1 + strlen(arg);
1148: p = xrealloc(p, 1, len);
1149: strlcat(p, " ", len);
1150: strlcat(p, arg, len);
1151: }
1152: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1153: options->num_subsystems++;
1154: break;
1.46 markus 1155:
1.94 markus 1156: case sMaxStartups:
1157: arg = strdelim(&cp);
1158: if (!arg || *arg == '\0')
1159: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1160: filename, linenum);
1.94 markus 1161: if ((n = sscanf(arg, "%d:%d:%d",
1162: &options->max_startups_begin,
1163: &options->max_startups_rate,
1164: &options->max_startups)) == 3) {
1165: if (options->max_startups_begin >
1166: options->max_startups ||
1167: options->max_startups_rate > 100 ||
1168: options->max_startups_rate < 1)
1.50 markus 1169: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1170: filename, linenum);
1.94 markus 1171: } else if (n != 1)
1172: fatal("%s line %d: Illegal MaxStartups spec.",
1173: filename, linenum);
1174: else
1175: options->max_startups = options->max_startups_begin;
1176: break;
1.133 dtucker 1177:
1178: case sMaxAuthTries:
1179: intptr = &options->max_authtries;
1180: goto parse_int;
1.94 markus 1181:
1.180 djm 1182: case sMaxSessions:
1183: intptr = &options->max_sessions;
1184: goto parse_int;
1185:
1.94 markus 1186: case sBanner:
1187: charptr = &options->banner;
1188: goto parse_filename;
1.176 djm 1189:
1.94 markus 1190: /*
1191: * These options can contain %X options expanded at
1192: * connect time, so that you can specify paths like:
1193: *
1194: * AuthorizedKeysFile /etc/ssh_keys/%u
1195: */
1196: case sAuthorizedKeysFile:
1.208 djm 1197: charptr = &options->authorized_keys_file;
1198: goto parse_tilde_filename;
1.94 markus 1199: case sAuthorizedKeysFile2:
1.208 djm 1200: charptr = &options->authorized_keys_file2;
1201: goto parse_tilde_filename;
1202: case sAuthorizedPrincipalsFile:
1203: charptr = &options->authorized_principals_file;
1204: parse_tilde_filename:
1.205 djm 1205: arg = strdelim(&cp);
1206: if (!arg || *arg == '\0')
1207: fatal("%s line %d: missing file name.",
1208: filename, linenum);
1209: if (*activep && *charptr == NULL) {
1.206 markus 1210: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1211: /* increase optional counter */
1212: if (intptr != NULL)
1213: *intptr = *intptr + 1;
1214: }
1215: break;
1.94 markus 1216:
1217: case sClientAliveInterval:
1218: intptr = &options->client_alive_interval;
1219: goto parse_time;
1220:
1221: case sClientAliveCountMax:
1222: intptr = &options->client_alive_count_max;
1223: goto parse_int;
1.131 djm 1224:
1225: case sAcceptEnv:
1226: while ((arg = strdelim(&cp)) && *arg != '\0') {
1227: if (strchr(arg, '=') != NULL)
1228: fatal("%s line %d: Invalid environment name.",
1229: filename, linenum);
1230: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1231: fatal("%s line %d: too many allow env.",
1232: filename, linenum);
1.153 dtucker 1233: if (!*activep)
1234: break;
1.131 djm 1235: options->accept_env[options->num_accept_env++] =
1236: xstrdup(arg);
1237: }
1238: break;
1.145 reyk 1239:
1240: case sPermitTunnel:
1241: intptr = &options->permit_tun;
1.146 reyk 1242: arg = strdelim(&cp);
1243: if (!arg || *arg == '\0')
1244: fatal("%s line %d: Missing yes/point-to-point/"
1245: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1246: value = -1;
1247: for (i = 0; tunmode_desc[i].val != -1; i++)
1248: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1249: value = tunmode_desc[i].val;
1250: break;
1251: }
1252: if (value == -1)
1.146 reyk 1253: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1254: "no argument: %s", filename, linenum, arg);
1255: if (*intptr == -1)
1256: *intptr = value;
1257: break;
1.94 markus 1258:
1.153 dtucker 1259: case sMatch:
1260: if (cmdline)
1261: fatal("Match directive not supported as a command-line "
1262: "option");
1263: value = match_cfg_line(&cp, linenum, user, host, address);
1264: if (value < 0)
1265: fatal("%s line %d: Bad Match condition", filename,
1266: linenum);
1267: *activep = value;
1.156 dtucker 1268: break;
1269:
1270: case sPermitOpen:
1271: arg = strdelim(&cp);
1272: if (!arg || *arg == '\0')
1273: fatal("%s line %d: missing PermitOpen specification",
1274: filename, linenum);
1.167 dtucker 1275: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1276: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1277: if (*activep && n == -1) {
1.156 dtucker 1278: channel_clear_adm_permitted_opens();
1.159 dtucker 1279: options->num_permitted_opens = 0;
1280: }
1.156 dtucker 1281: break;
1282: }
1.166 dtucker 1283: if (*activep && n == -1)
1284: channel_clear_adm_permitted_opens();
1.159 dtucker 1285: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1286: p = hpdelim(&arg);
1287: if (p == NULL)
1288: fatal("%s line %d: missing host in PermitOpen",
1289: filename, linenum);
1290: p = cleanhostname(p);
1.194 djm 1291: if (arg == NULL || (port = a2port(arg)) <= 0)
1.159 dtucker 1292: fatal("%s line %d: bad port number in "
1293: "PermitOpen", filename, linenum);
1.166 dtucker 1294: if (*activep && n == -1)
1.159 dtucker 1295: options->num_permitted_opens =
1296: channel_add_adm_permitted_opens(p, port);
1297: }
1.153 dtucker 1298: break;
1299:
1.158 dtucker 1300: case sForceCommand:
1301: if (cp == NULL)
1302: fatal("%.200s line %d: Missing argument.", filename,
1303: linenum);
1304: len = strspn(cp, WHITESPACE);
1305: if (*activep && options->adm_forced_command == NULL)
1306: options->adm_forced_command = xstrdup(cp + len);
1307: return 0;
1308:
1.176 djm 1309: case sChrootDirectory:
1310: charptr = &options->chroot_directory;
1.177 djm 1311:
1312: arg = strdelim(&cp);
1313: if (!arg || *arg == '\0')
1314: fatal("%s line %d: missing file name.",
1315: filename, linenum);
1316: if (*activep && *charptr == NULL)
1317: *charptr = xstrdup(arg);
1318: break;
1.176 djm 1319:
1.204 djm 1320: case sTrustedUserCAKeys:
1321: charptr = &options->trusted_user_ca_keys;
1322: goto parse_filename;
1323:
1324: case sRevokedKeys:
1325: charptr = &options->revoked_keys_file;
1326: goto parse_filename;
1327:
1.94 markus 1328: case sDeprecated:
1.117 itojun 1329: logit("%s line %d: Deprecated option %s",
1.121 jakob 1330: filename, linenum, arg);
1331: while (arg)
1332: arg = strdelim(&cp);
1333: break;
1334:
1335: case sUnsupported:
1336: logit("%s line %d: Unsupported option %s",
1.94 markus 1337: filename, linenum, arg);
1338: while (arg)
1339: arg = strdelim(&cp);
1340: break;
1341:
1342: default:
1343: fatal("%s line %d: Missing handler for opcode %s (%d)",
1344: filename, linenum, arg, opcode);
1345: }
1346: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1347: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1348: filename, linenum, arg);
1349: return 0;
1350: }
1351:
1352: /* Reads the server configuration file. */
1.25 markus 1353:
1.94 markus 1354: void
1.134 djm 1355: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1356: {
1.134 djm 1357: char line[1024], *cp;
1.94 markus 1358: FILE *f;
1.81 stevesk 1359:
1.134 djm 1360: debug2("%s: filename %s", __func__, filename);
1361: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1362: perror(filename);
1363: exit(1);
1364: }
1.134 djm 1365: buffer_clear(conf);
1366: while (fgets(line, sizeof(line), f)) {
1367: /*
1368: * Trim out comments and strip whitespace
1.135 deraadt 1369: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1370: * line numbers later for error messages
1371: */
1372: if ((cp = strchr(line, '#')) != NULL)
1373: memcpy(cp, "\n", 2);
1374: cp = line + strspn(line, " \t\r");
1375:
1376: buffer_append(conf, cp, strlen(cp));
1377: }
1378: buffer_append(conf, "\0", 1);
1379: fclose(f);
1380: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1381: }
1382:
1383: void
1.153 dtucker 1384: parse_server_match_config(ServerOptions *options, const char *user,
1385: const char *host, const char *address)
1386: {
1387: ServerOptions mo;
1388:
1389: initialize_server_options(&mo);
1390: parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
1.168 dtucker 1391: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1392: }
1393:
1.168 dtucker 1394: /* Helper macros */
1395: #define M_CP_INTOPT(n) do {\
1396: if (src->n != -1) \
1397: dst->n = src->n; \
1398: } while (0)
1399: #define M_CP_STROPT(n) do {\
1400: if (src->n != NULL) { \
1401: if (dst->n != NULL) \
1402: xfree(dst->n); \
1403: dst->n = src->n; \
1404: } \
1405: } while(0)
1406:
1407: /*
1408: * Copy any supported values that are set.
1409: *
1.195 jj 1410: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1411: * array values that are not used pre-authentication, because any that we
1412: * do use must be explictly sent in mm_getpwnamallow().
1413: */
1.153 dtucker 1414: void
1.168 dtucker 1415: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1416: {
1.168 dtucker 1417: M_CP_INTOPT(password_authentication);
1418: M_CP_INTOPT(gss_authentication);
1419: M_CP_INTOPT(rsa_authentication);
1420: M_CP_INTOPT(pubkey_authentication);
1421: M_CP_INTOPT(kerberos_authentication);
1422: M_CP_INTOPT(hostbased_authentication);
1.209 djm 1423: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 1424: M_CP_INTOPT(kbd_interactive_authentication);
1.190 djm 1425: M_CP_INTOPT(zero_knowledge_password_authentication);
1.175 dtucker 1426: M_CP_INTOPT(permit_root_login);
1.188 djm 1427: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1428:
1429: M_CP_INTOPT(allow_tcp_forwarding);
1.178 pyr 1430: M_CP_INTOPT(allow_agent_forwarding);
1.209 djm 1431: M_CP_INTOPT(permit_tun);
1.168 dtucker 1432: M_CP_INTOPT(gateway_ports);
1433: M_CP_INTOPT(x11_display_offset);
1434: M_CP_INTOPT(x11_forwarding);
1435: M_CP_INTOPT(x11_use_localhost);
1.180 djm 1436: M_CP_INTOPT(max_sessions);
1.184 dtucker 1437: M_CP_INTOPT(max_authtries);
1.168 dtucker 1438:
1439: M_CP_STROPT(banner);
1440: if (preauth)
1441: return;
1442: M_CP_STROPT(adm_forced_command);
1.176 djm 1443: M_CP_STROPT(chroot_directory);
1.204 djm 1444: M_CP_STROPT(trusted_user_ca_keys);
1445: M_CP_STROPT(revoked_keys_file);
1.209 djm 1446: M_CP_STROPT(authorized_keys_file);
1447: M_CP_STROPT(authorized_keys_file2);
1448: M_CP_STROPT(authorized_principals_file);
1.153 dtucker 1449: }
1.168 dtucker 1450:
1451: #undef M_CP_INTOPT
1452: #undef M_CP_STROPT
1.153 dtucker 1453:
1454: void
1455: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1456: const char *user, const char *host, const char *address)
1.134 djm 1457: {
1.153 dtucker 1458: int active, linenum, bad_options = 0;
1.136 dtucker 1459: char *cp, *obuf, *cbuf;
1.134 djm 1460:
1461: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1462:
1.136 dtucker 1463: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.153 dtucker 1464: active = user ? 0 : 1;
1.137 dtucker 1465: linenum = 1;
1.140 deraadt 1466: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1467: if (process_server_config_line(options, cp, filename,
1.153 dtucker 1468: linenum++, &active, user, host, address) != 0)
1.94 markus 1469: bad_options++;
1.1 deraadt 1470: }
1.136 dtucker 1471: xfree(obuf);
1.78 stevesk 1472: if (bad_options > 0)
1473: fatal("%s: terminating, %d bad configuration options",
1474: filename, bad_options);
1.182 dtucker 1475: }
1476:
1477: static const char *
1478: fmt_intarg(ServerOpCodes code, int val)
1479: {
1480: if (code == sAddressFamily) {
1481: switch (val) {
1482: case AF_INET:
1483: return "inet";
1484: case AF_INET6:
1485: return "inet6";
1486: case AF_UNSPEC:
1487: return "any";
1488: default:
1489: return "UNKNOWN";
1490: }
1491: }
1492: if (code == sPermitRootLogin) {
1493: switch (val) {
1494: case PERMIT_NO_PASSWD:
1.191 jmc 1495: return "without-password";
1.182 dtucker 1496: case PERMIT_FORCED_ONLY:
1497: return "forced-commands-only";
1498: case PERMIT_YES:
1499: return "yes";
1500: }
1501: }
1502: if (code == sProtocol) {
1503: switch (val) {
1504: case SSH_PROTO_1:
1505: return "1";
1506: case SSH_PROTO_2:
1507: return "2";
1508: case (SSH_PROTO_1|SSH_PROTO_2):
1509: return "2,1";
1510: default:
1511: return "UNKNOWN";
1512: }
1513: }
1514: if (code == sGatewayPorts && val == 2)
1515: return "clientspecified";
1516: if (code == sCompression && val == COMP_DELAYED)
1517: return "delayed";
1518: switch (val) {
1519: case -1:
1520: return "unset";
1521: case 0:
1522: return "no";
1523: case 1:
1524: return "yes";
1525: }
1526: return "UNKNOWN";
1527: }
1528:
1529: static const char *
1530: lookup_opcode_name(ServerOpCodes code)
1531: {
1532: u_int i;
1533:
1534: for (i = 0; keywords[i].name != NULL; i++)
1535: if (keywords[i].opcode == code)
1536: return(keywords[i].name);
1537: return "UNKNOWN";
1538: }
1539:
1540: static void
1541: dump_cfg_int(ServerOpCodes code, int val)
1542: {
1543: printf("%s %d\n", lookup_opcode_name(code), val);
1544: }
1545:
1546: static void
1547: dump_cfg_fmtint(ServerOpCodes code, int val)
1548: {
1549: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1550: }
1551:
1552: static void
1553: dump_cfg_string(ServerOpCodes code, const char *val)
1554: {
1555: if (val == NULL)
1556: return;
1557: printf("%s %s\n", lookup_opcode_name(code), val);
1558: }
1559:
1560: static void
1561: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
1562: {
1563: u_int i;
1564:
1565: for (i = 0; i < count; i++)
1566: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
1567: }
1568:
1569: void
1570: dump_config(ServerOptions *o)
1571: {
1572: u_int i;
1573: int ret;
1574: struct addrinfo *ai;
1575: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1576:
1577: /* these are usually at the top of the config */
1578: for (i = 0; i < o->num_ports; i++)
1579: printf("port %d\n", o->ports[i]);
1580: dump_cfg_fmtint(sProtocol, o->protocol);
1581: dump_cfg_fmtint(sAddressFamily, o->address_family);
1582:
1583: /* ListenAddress must be after Port */
1584: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
1585: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1586: sizeof(addr), port, sizeof(port),
1587: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1588: error("getnameinfo failed: %.100s",
1589: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
1590: strerror(errno));
1591: } else {
1592: if (ai->ai_family == AF_INET6)
1593: printf("listenaddress [%s]:%s\n", addr, port);
1594: else
1595: printf("listenaddress %s:%s\n", addr, port);
1596: }
1597: }
1598:
1599: /* integer arguments */
1600: dump_cfg_int(sServerKeyBits, o->server_key_bits);
1601: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
1602: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
1603: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
1604: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 1605: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 1606: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
1607: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1608:
1609: /* formatted integer arguments */
1610: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
1611: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
1612: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
1613: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
1614: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
1615: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
1616: o->hostbased_uses_name_from_packet_only);
1617: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
1618: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 1619: #ifdef KRB5
1.182 dtucker 1620: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
1621: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
1622: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
1623: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 1624: #endif
1625: #ifdef GSSAPI
1.182 dtucker 1626: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
1627: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.190 djm 1628: #endif
1629: #ifdef JPAKE
1630: dump_cfg_fmtint(sZeroKnowledgePasswordAuthentication,
1631: o->zero_knowledge_password_authentication);
1.187 djm 1632: #endif
1.182 dtucker 1633: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
1634: dump_cfg_fmtint(sKbdInteractiveAuthentication,
1635: o->kbd_interactive_authentication);
1636: dump_cfg_fmtint(sChallengeResponseAuthentication,
1637: o->challenge_response_authentication);
1638: dump_cfg_fmtint(sPrintMotd, o->print_motd);
1639: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
1640: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
1641: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1642: dump_cfg_fmtint(sStrictModes, o->strict_modes);
1643: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
1644: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
1645: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
1646: dump_cfg_fmtint(sUseLogin, o->use_login);
1647: dump_cfg_fmtint(sCompression, o->compression);
1648: dump_cfg_fmtint(sGatewayPorts, o->gateway_ports);
1649: dump_cfg_fmtint(sUseDNS, o->use_dns);
1650: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1651: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1652:
1653: /* string arguments */
1654: dump_cfg_string(sPidFile, o->pid_file);
1655: dump_cfg_string(sXAuthLocation, o->xauth_location);
1656: dump_cfg_string(sCiphers, o->ciphers);
1657: dump_cfg_string(sMacs, o->macs);
1658: dump_cfg_string(sBanner, o->banner);
1659: dump_cfg_string(sAuthorizedKeysFile, o->authorized_keys_file);
1660: dump_cfg_string(sAuthorizedKeysFile2, o->authorized_keys_file2);
1661: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 1662: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 1663: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
1664: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 1665: dump_cfg_string(sAuthorizedPrincipalsFile,
1666: o->authorized_principals_file);
1.182 dtucker 1667:
1668: /* string arguments requiring a lookup */
1669: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
1670: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
1671:
1672: /* string array arguments */
1673: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1674: o->host_key_files);
1.203 djm 1675: dump_cfg_strarray(sHostKeyFile, o->num_host_cert_files,
1676: o->host_cert_files);
1.182 dtucker 1677: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
1678: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
1679: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
1680: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
1681: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1682:
1683: /* other arguments */
1684: for (i = 0; i < o->num_subsystems; i++)
1685: printf("subsystem %s %s\n", o->subsystem_name[i],
1686: o->subsystem_args[i]);
1687:
1688: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
1689: o->max_startups_rate, o->max_startups);
1690:
1691: for (i = 0; tunmode_desc[i].val != -1; i++)
1692: if (tunmode_desc[i].val == o->permit_tun) {
1693: s = tunmode_desc[i].text;
1694: break;
1695: }
1696: dump_cfg_string(sPermitTunnel, s);
1697:
1698: channel_print_adm_permitted_opens();
1.1 deraadt 1699: }
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