Annotation of src/usr.bin/ssh/servconf.c, Revision 1.207
1.207 ! djm 1: /* $OpenBSD: servconf.c,v 1.206 2010/03/12 11:37:40 markus 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;
1.33 markus 105: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 106: options->gateway_ports = -1;
1.43 jakob 107: options->num_subsystems = 0;
1.50 markus 108: options->max_startups_begin = -1;
109: options->max_startups_rate = -1;
1.46 markus 110: options->max_startups = -1;
1.133 dtucker 111: options->max_authtries = -1;
1.180 djm 112: options->max_sessions = -1;
1.57 markus 113: options->banner = NULL;
1.122 markus 114: options->use_dns = -1;
1.77 beck 115: options->client_alive_interval = -1;
116: options->client_alive_count_max = -1;
1.82 markus 117: options->authorized_keys_file = NULL;
118: options->authorized_keys_file2 = NULL;
1.131 djm 119: options->num_accept_env = 0;
1.145 reyk 120: options->permit_tun = -1;
1.159 dtucker 121: options->num_permitted_opens = -1;
1.158 dtucker 122: options->adm_forced_command = NULL;
1.176 djm 123: options->chroot_directory = NULL;
1.190 djm 124: options->zero_knowledge_password_authentication = -1;
1.204 djm 125: options->revoked_keys_file = NULL;
126: options->trusted_user_ca_keys = NULL;
1.1 deraadt 127: }
128:
1.34 markus 129: void
1.25 markus 130: fill_default_server_options(ServerOptions *options)
1.1 deraadt 131: {
1.54 markus 132: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 133: options->protocol = SSH_PROTO_2;
1.54 markus 134: if (options->num_host_key_files == 0) {
135: /* fill default hostkeys for protocols */
136: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 137: options->host_key_files[options->num_host_key_files++] =
138: _PATH_HOST_KEY_FILE;
139: if (options->protocol & SSH_PROTO_2) {
140: options->host_key_files[options->num_host_key_files++] =
141: _PATH_HOST_RSA_KEY_FILE;
142: options->host_key_files[options->num_host_key_files++] =
143: _PATH_HOST_DSA_KEY_FILE;
144: }
1.54 markus 145: }
1.203 djm 146: /* No certificates by default */
1.29 markus 147: if (options->num_ports == 0)
148: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
149: if (options->listen_addrs == NULL)
1.76 stevesk 150: add_listen_addr(options, NULL, 0);
1.36 markus 151: if (options->pid_file == NULL)
1.60 markus 152: options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
1.25 markus 153: if (options->server_key_bits == -1)
1.185 djm 154: options->server_key_bits = 1024;
1.25 markus 155: if (options->login_grace_time == -1)
1.115 stevesk 156: options->login_grace_time = 120;
1.25 markus 157: if (options->key_regeneration_time == -1)
158: options->key_regeneration_time = 3600;
1.67 markus 159: if (options->permit_root_login == PERMIT_NOT_SET)
160: options->permit_root_login = PERMIT_YES;
1.25 markus 161: if (options->ignore_rhosts == -1)
1.30 markus 162: options->ignore_rhosts = 1;
1.25 markus 163: if (options->ignore_user_known_hosts == -1)
164: options->ignore_user_known_hosts = 0;
165: if (options->print_motd == -1)
166: options->print_motd = 1;
1.72 stevesk 167: if (options->print_lastlog == -1)
168: options->print_lastlog = 1;
1.25 markus 169: if (options->x11_forwarding == -1)
1.30 markus 170: options->x11_forwarding = 0;
1.25 markus 171: if (options->x11_display_offset == -1)
1.30 markus 172: options->x11_display_offset = 10;
1.99 stevesk 173: if (options->x11_use_localhost == -1)
174: options->x11_use_localhost = 1;
1.42 markus 175: if (options->xauth_location == NULL)
1.83 markus 176: options->xauth_location = _PATH_XAUTH;
1.25 markus 177: if (options->strict_modes == -1)
178: options->strict_modes = 1;
1.129 markus 179: if (options->tcp_keep_alive == -1)
180: options->tcp_keep_alive = 1;
1.101 markus 181: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 182: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 183: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 184: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 185: if (options->rhosts_rsa_authentication == -1)
1.30 markus 186: options->rhosts_rsa_authentication = 0;
1.75 markus 187: if (options->hostbased_authentication == -1)
188: options->hostbased_authentication = 0;
189: if (options->hostbased_uses_name_from_packet_only == -1)
190: options->hostbased_uses_name_from_packet_only = 0;
1.25 markus 191: if (options->rsa_authentication == -1)
192: options->rsa_authentication = 1;
1.54 markus 193: if (options->pubkey_authentication == -1)
194: options->pubkey_authentication = 1;
1.25 markus 195: if (options->kerberos_authentication == -1)
1.107 markus 196: options->kerberos_authentication = 0;
1.25 markus 197: if (options->kerberos_or_local_passwd == -1)
198: options->kerberos_or_local_passwd = 1;
199: if (options->kerberos_ticket_cleanup == -1)
200: options->kerberos_ticket_cleanup = 1;
1.130 jakob 201: if (options->kerberos_get_afs_token == -1)
202: options->kerberos_get_afs_token = 0;
1.125 markus 203: if (options->gss_authentication == -1)
204: options->gss_authentication = 0;
205: if (options->gss_cleanup_creds == -1)
206: options->gss_cleanup_creds = 1;
1.25 markus 207: if (options->password_authentication == -1)
208: options->password_authentication = 1;
1.52 markus 209: if (options->kbd_interactive_authentication == -1)
210: options->kbd_interactive_authentication = 0;
1.80 markus 211: if (options->challenge_response_authentication == -1)
212: options->challenge_response_authentication = 1;
1.25 markus 213: if (options->permit_empty_passwd == -1)
1.30 markus 214: options->permit_empty_passwd = 0;
1.113 markus 215: if (options->permit_user_env == -1)
216: options->permit_user_env = 0;
1.25 markus 217: if (options->use_login == -1)
218: options->use_login = 0;
1.111 markus 219: if (options->compression == -1)
1.143 markus 220: options->compression = COMP_DELAYED;
1.53 markus 221: if (options->allow_tcp_forwarding == -1)
222: options->allow_tcp_forwarding = 1;
1.178 pyr 223: if (options->allow_agent_forwarding == -1)
224: options->allow_agent_forwarding = 1;
1.38 markus 225: if (options->gateway_ports == -1)
226: options->gateway_ports = 0;
1.46 markus 227: if (options->max_startups == -1)
228: options->max_startups = 10;
1.50 markus 229: if (options->max_startups_rate == -1)
230: options->max_startups_rate = 100; /* 100% */
231: if (options->max_startups_begin == -1)
232: options->max_startups_begin = options->max_startups;
1.133 dtucker 233: if (options->max_authtries == -1)
234: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 235: if (options->max_sessions == -1)
236: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 237: if (options->use_dns == -1)
238: options->use_dns = 1;
1.77 beck 239: if (options->client_alive_interval == -1)
1.95 deraadt 240: options->client_alive_interval = 0;
1.77 beck 241: if (options->client_alive_count_max == -1)
242: options->client_alive_count_max = 3;
1.90 markus 243: if (options->authorized_keys_file2 == NULL) {
244: /* authorized_keys_file2 falls back to authorized_keys_file */
245: if (options->authorized_keys_file != NULL)
246: options->authorized_keys_file2 = options->authorized_keys_file;
247: else
248: options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2;
249: }
250: if (options->authorized_keys_file == NULL)
251: options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
1.145 reyk 252: if (options->permit_tun == -1)
1.146 reyk 253: options->permit_tun = SSH_TUNMODE_NO;
1.190 djm 254: if (options->zero_knowledge_password_authentication == -1)
255: options->zero_knowledge_password_authentication = 0;
1.102 provos 256:
1.110 markus 257: /* Turn privilege separation on by default */
1.102 provos 258: if (use_privsep == -1)
1.110 markus 259: use_privsep = 1;
1.1 deraadt 260: }
261:
262: /* Keyword tokens. */
1.25 markus 263: typedef enum {
264: sBadOption, /* == unknown option */
265: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
266: sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 267: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 268: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 269: sKerberosGetAFSToken,
1.123 markus 270: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 271: sPasswordAuthentication, sKbdInteractiveAuthentication,
272: sListenAddress, sAddressFamily,
1.72 stevesk 273: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 274: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.129 markus 275: sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 276: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.53 markus 277: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 278: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.133 dtucker 279: sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem,
1.180 djm 280: sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 281: sBanner, sUseDNS, sHostbasedAuthentication,
1.95 deraadt 282: sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
1.89 jakob 283: sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
1.145 reyk 284: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 285: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 286: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.203 djm 287: sZeroKnowledgePasswordAuthentication, sHostCertificate,
1.204 djm 288: sRevokedKeys, sTrustedUserCAKeys,
1.121 jakob 289: sDeprecated, sUnsupported
1.1 deraadt 290: } ServerOpCodes;
291:
1.153 dtucker 292: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
293: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
294: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
295:
1.1 deraadt 296: /* Textual representation of the tokens. */
1.25 markus 297: static struct {
298: const char *name;
299: ServerOpCodes opcode;
1.153 dtucker 300: u_int flags;
1.25 markus 301: } keywords[] = {
1.153 dtucker 302: { "port", sPort, SSHCFG_GLOBAL },
303: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
304: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
305: { "pidfile", sPidFile, SSHCFG_GLOBAL },
306: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
307: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
308: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 309: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 310: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
311: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
312: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 313: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
314: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.153 dtucker 315: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_GLOBAL },
1.168 dtucker 316: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
317: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.153 dtucker 318: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 319: #ifdef KRB5
1.168 dtucker 320: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 321: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
322: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
323: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 324: #else
1.168 dtucker 325: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 326: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
327: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
328: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 329: #endif
1.153 dtucker 330: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
331: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 332: #ifdef GSSAPI
1.168 dtucker 333: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 334: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 335: #else
1.168 dtucker 336: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 337: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 338: #endif
1.168 dtucker 339: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
340: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 341: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 342: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
1.190 djm 343: #ifdef JPAKE
344: { "zeroknowledgepasswordauthentication", sZeroKnowledgePasswordAuthentication, SSHCFG_ALL },
345: #else
346: { "zeroknowledgepasswordauthentication", sUnsupported, SSHCFG_ALL },
347: #endif
1.153 dtucker 348: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
349: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
350: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
351: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
352: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
353: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
354: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 355: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
356: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
357: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 358: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
359: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 360: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 361: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
362: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
363: { "compression", sCompression, SSHCFG_GLOBAL },
364: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
365: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
366: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 367: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.153 dtucker 368: { "allowusers", sAllowUsers, SSHCFG_GLOBAL },
369: { "denyusers", sDenyUsers, SSHCFG_GLOBAL },
370: { "allowgroups", sAllowGroups, SSHCFG_GLOBAL },
371: { "denygroups", sDenyGroups, SSHCFG_GLOBAL },
372: { "ciphers", sCiphers, SSHCFG_GLOBAL },
373: { "macs", sMacs, SSHCFG_GLOBAL },
374: { "protocol", sProtocol, SSHCFG_GLOBAL },
375: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
376: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
377: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 378: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 379: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 380: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 381: { "usedns", sUseDNS, SSHCFG_GLOBAL },
382: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
383: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
384: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
385: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
386: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_GLOBAL },
387: { "authorizedkeysfile2", sAuthorizedKeysFile2, SSHCFG_GLOBAL },
388: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
389: { "acceptenv", sAcceptEnv, SSHCFG_GLOBAL },
390: { "permittunnel", sPermitTunnel, SSHCFG_GLOBAL },
391: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 392: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 393: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 394: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 395: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 396: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
397: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.153 dtucker 398: { NULL, sBadOption, 0 }
1.1 deraadt 399: };
400:
1.182 dtucker 401: static struct {
402: int val;
403: char *text;
404: } tunmode_desc[] = {
405: { SSH_TUNMODE_NO, "no" },
406: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
407: { SSH_TUNMODE_ETHERNET, "ethernet" },
408: { SSH_TUNMODE_YES, "yes" },
409: { -1, NULL }
410: };
411:
1.27 markus 412: /*
1.73 stevesk 413: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 414: */
1.1 deraadt 415:
1.34 markus 416: static ServerOpCodes
1.25 markus 417: parse_token(const char *cp, const char *filename,
1.153 dtucker 418: int linenum, u_int *flags)
1.1 deraadt 419: {
1.55 markus 420: u_int i;
1.1 deraadt 421:
1.25 markus 422: for (i = 0; keywords[i].name; i++)
1.153 dtucker 423: if (strcasecmp(cp, keywords[i].name) == 0) {
424: *flags = keywords[i].flags;
1.25 markus 425: return keywords[i].opcode;
1.153 dtucker 426: }
1.25 markus 427:
1.78 stevesk 428: error("%s: line %d: Bad configuration option: %s",
429: filename, linenum, cp);
1.25 markus 430: return sBadOption;
1.1 deraadt 431: }
432:
1.202 djm 433: char *
434: derelativise_path(const char *path)
435: {
1.207 ! djm 436: char *expanded, *ret, cwd[MAXPATHLEN];
1.202 djm 437:
438: expanded = tilde_expand_filename(path, getuid());
439: if (*expanded == '/')
440: return expanded;
1.207 ! djm 441: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 442: fatal("%s: getcwd: %s", __func__, strerror(errno));
443: xasprintf(&ret, "%s/%s", cwd, expanded);
444: xfree(expanded);
445: return ret;
446: }
447:
1.84 itojun 448: static void
1.194 djm 449: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 450: {
1.142 djm 451: u_int i;
1.74 stevesk 452:
453: if (options->num_ports == 0)
454: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 455: if (options->address_family == -1)
456: options->address_family = AF_UNSPEC;
1.76 stevesk 457: if (port == 0)
1.74 stevesk 458: for (i = 0; i < options->num_ports; i++)
459: add_one_listen_addr(options, addr, options->ports[i]);
460: else
1.76 stevesk 461: add_one_listen_addr(options, addr, port);
1.74 stevesk 462: }
463:
1.84 itojun 464: static void
1.194 djm 465: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 466: {
467: struct addrinfo hints, *ai, *aitop;
468: char strport[NI_MAXSERV];
469: int gaierr;
470:
1.74 stevesk 471: memset(&hints, 0, sizeof(hints));
1.138 djm 472: hints.ai_family = options->address_family;
1.74 stevesk 473: hints.ai_socktype = SOCK_STREAM;
474: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 475: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 476: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
477: fatal("bad addr or host: %s (%s)",
478: addr ? addr : "<NULL>",
1.173 dtucker 479: ssh_gai_strerror(gaierr));
1.74 stevesk 480: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
481: ;
482: ai->ai_next = options->listen_addrs;
483: options->listen_addrs = aitop;
1.29 markus 484: }
485:
1.153 dtucker 486: /*
487: * The strategy for the Match blocks is that the config file is parsed twice.
488: *
489: * The first time is at startup. activep is initialized to 1 and the
490: * directives in the global context are processed and acted on. Hitting a
491: * Match directive unsets activep and the directives inside the block are
492: * checked for syntax only.
493: *
494: * The second time is after a connection has been established but before
495: * authentication. activep is initialized to 2 and global config directives
496: * are ignored since they have already been processed. If the criteria in a
497: * Match block is met, activep is set and the subsequent directives
498: * processed and actioned until EOF or another Match block unsets it. Any
499: * options set are copied into the main server config.
500: *
501: * Potential additions/improvements:
502: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
503: *
504: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
505: * Match Address 192.168.0.*
506: * Tag trusted
507: * Match Group wheel
508: * Tag trusted
509: * Match Tag trusted
510: * AllowTcpForwarding yes
511: * GatewayPorts clientspecified
512: * [...]
513: *
514: * - Add a PermittedChannelRequests directive
515: * Match Group shell
516: * PermittedChannelRequests session,forwarded-tcpip
517: */
518:
519: static int
1.165 dtucker 520: match_cfg_line_group(const char *grps, int line, const char *user)
521: {
522: int result = 0;
523: struct passwd *pw;
524:
525: if (user == NULL)
526: goto out;
527:
528: if ((pw = getpwnam(user)) == NULL) {
529: debug("Can't match group at line %d because user %.100s does "
530: "not exist", line, user);
531: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
532: debug("Can't Match group because user %.100s not in any group "
533: "at line %d", user, line);
1.186 djm 534: } else if (ga_match_pattern_list(grps) != 1) {
535: debug("user %.100s does not match group list %.100s at line %d",
536: user, grps, line);
1.165 dtucker 537: } else {
1.186 djm 538: debug("user %.100s matched group list %.100s at line %d", user,
539: grps, line);
1.165 dtucker 540: result = 1;
541: }
542: out:
543: ga_free();
544: return result;
545: }
546:
547: static int
1.153 dtucker 548: match_cfg_line(char **condition, int line, const char *user, const char *host,
549: const char *address)
550: {
551: int result = 1;
552: char *arg, *attrib, *cp = *condition;
553: size_t len;
554:
555: if (user == NULL)
556: debug3("checking syntax for 'Match %s'", cp);
557: else
558: debug3("checking match for '%s' user %s host %s addr %s", cp,
559: user ? user : "(null)", host ? host : "(null)",
560: address ? address : "(null)");
561:
562: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
563: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
564: error("Missing Match criteria for %s", attrib);
565: return -1;
566: }
567: len = strlen(arg);
568: if (strcasecmp(attrib, "user") == 0) {
569: if (!user) {
570: result = 0;
571: continue;
572: }
573: if (match_pattern_list(user, arg, len, 0) != 1)
574: result = 0;
575: else
576: debug("user %.100s matched 'User %.100s' at "
577: "line %d", user, arg, line);
1.165 dtucker 578: } else if (strcasecmp(attrib, "group") == 0) {
579: switch (match_cfg_line_group(arg, line, user)) {
580: case -1:
581: return -1;
582: case 0:
583: result = 0;
584: }
1.153 dtucker 585: } else if (strcasecmp(attrib, "host") == 0) {
586: if (!host) {
587: result = 0;
588: continue;
589: }
590: if (match_hostname(host, arg, len) != 1)
591: result = 0;
592: else
593: debug("connection from %.100s matched 'Host "
594: "%.100s' at line %d", host, arg, line);
595: } else if (strcasecmp(attrib, "address") == 0) {
1.181 djm 596: switch (addr_match_list(address, arg)) {
597: case 1:
598: debug("connection from %.100s matched 'Address "
599: "%.100s' at line %d", address, arg, line);
600: break;
601: case 0:
1.183 djm 602: case -1:
1.153 dtucker 603: result = 0;
1.181 djm 604: break;
1.183 djm 605: case -2:
1.181 djm 606: return -1;
1.153 dtucker 607: }
608: } else {
609: error("Unsupported Match attribute %s", attrib);
610: return -1;
611: }
612: }
613: if (user != NULL)
614: debug3("match %sfound", result ? "" : "not ");
615: *condition = cp;
616: return result;
617: }
618:
1.158 dtucker 619: #define WHITESPACE " \t\r\n"
620:
1.94 markus 621: int
622: process_server_config_line(ServerOptions *options, char *line,
1.153 dtucker 623: const char *filename, int linenum, int *activep, const char *user,
624: const char *host, const char *address)
1.1 deraadt 625: {
1.74 stevesk 626: char *cp, **charptr, *arg, *p;
1.153 dtucker 627: int cmdline = 0, *intptr, value, n;
1.174 dtucker 628: SyslogFacility *log_facility_ptr;
629: LogLevel *log_level_ptr;
1.25 markus 630: ServerOpCodes opcode;
1.194 djm 631: int port;
1.153 dtucker 632: u_int i, flags = 0;
1.151 djm 633: size_t len;
1.25 markus 634:
1.94 markus 635: cp = line;
1.148 dtucker 636: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 637: return 0;
1.94 markus 638: /* Ignore leading whitespace */
639: if (*arg == '\0')
640: arg = strdelim(&cp);
641: if (!arg || !*arg || *arg == '#')
642: return 0;
643: intptr = NULL;
644: charptr = NULL;
1.153 dtucker 645: opcode = parse_token(arg, filename, linenum, &flags);
646:
647: if (activep == NULL) { /* We are processing a command line directive */
648: cmdline = 1;
649: activep = &cmdline;
650: }
651: if (*activep && opcode != sMatch)
652: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
653: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
654: if (user == NULL) {
655: fatal("%s line %d: Directive '%s' is not allowed "
656: "within a Match block", filename, linenum, arg);
657: } else { /* this is a directive we have already processed */
658: while (arg)
659: arg = strdelim(&cp);
660: return 0;
661: }
662: }
663:
1.94 markus 664: switch (opcode) {
665: case sBadOption:
666: return -1;
667: case sPort:
668: /* ignore ports from configfile if cmdline specifies ports */
669: if (options->ports_from_cmdline)
670: return 0;
671: if (options->listen_addrs != NULL)
672: fatal("%s line %d: ports must be specified before "
1.98 stevesk 673: "ListenAddress.", filename, linenum);
1.94 markus 674: if (options->num_ports >= MAX_PORTS)
675: fatal("%s line %d: too many ports.",
676: filename, linenum);
1.48 provos 677: arg = strdelim(&cp);
1.94 markus 678: if (!arg || *arg == '\0')
679: fatal("%s line %d: missing port number.",
680: filename, linenum);
681: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 682: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 683: fatal("%s line %d: Badly formatted port number.",
684: filename, linenum);
685: break;
1.29 markus 686:
1.94 markus 687: case sServerKeyBits:
688: intptr = &options->server_key_bits;
1.180 djm 689: parse_int:
1.94 markus 690: arg = strdelim(&cp);
691: if (!arg || *arg == '\0')
692: fatal("%s line %d: missing integer value.",
693: filename, linenum);
694: value = atoi(arg);
1.153 dtucker 695: if (*activep && *intptr == -1)
1.94 markus 696: *intptr = value;
697: break;
1.25 markus 698:
1.94 markus 699: case sLoginGraceTime:
700: intptr = &options->login_grace_time;
1.180 djm 701: parse_time:
1.94 markus 702: arg = strdelim(&cp);
703: if (!arg || *arg == '\0')
704: fatal("%s line %d: missing time value.",
705: filename, linenum);
706: if ((value = convtime(arg)) == -1)
707: fatal("%s line %d: invalid time value.",
708: filename, linenum);
709: if (*intptr == -1)
710: *intptr = value;
711: break;
712:
713: case sKeyRegenerationTime:
714: intptr = &options->key_regeneration_time;
715: goto parse_time;
716:
717: case sListenAddress:
718: arg = strdelim(&cp);
1.139 djm 719: if (arg == NULL || *arg == '\0')
720: fatal("%s line %d: missing address",
1.94 markus 721: filename, linenum);
1.144 dtucker 722: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
723: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
724: && strchr(p+1, ':') != NULL) {
725: add_listen_addr(options, arg, 0);
726: break;
727: }
1.139 djm 728: p = hpdelim(&arg);
729: if (p == NULL)
730: fatal("%s line %d: bad address:port usage",
731: filename, linenum);
732: p = cleanhostname(p);
733: if (arg == NULL)
734: port = 0;
1.194 djm 735: else if ((port = a2port(arg)) <= 0)
1.139 djm 736: fatal("%s line %d: bad port number", filename, linenum);
737:
738: add_listen_addr(options, p, port);
1.25 markus 739:
1.138 djm 740: break;
741:
742: case sAddressFamily:
743: arg = strdelim(&cp);
1.141 markus 744: if (!arg || *arg == '\0')
745: fatal("%s line %d: missing address family.",
746: filename, linenum);
1.138 djm 747: intptr = &options->address_family;
748: if (options->listen_addrs != NULL)
749: fatal("%s line %d: address family must be specified before "
750: "ListenAddress.", filename, linenum);
751: if (strcasecmp(arg, "inet") == 0)
752: value = AF_INET;
753: else if (strcasecmp(arg, "inet6") == 0)
754: value = AF_INET6;
755: else if (strcasecmp(arg, "any") == 0)
756: value = AF_UNSPEC;
757: else
758: fatal("%s line %d: unsupported address family \"%s\".",
759: filename, linenum, arg);
760: if (*intptr == -1)
761: *intptr = value;
1.94 markus 762: break;
763:
764: case sHostKeyFile:
765: intptr = &options->num_host_key_files;
766: if (*intptr >= MAX_HOSTKEYS)
767: fatal("%s line %d: too many host keys specified (max %d).",
768: filename, linenum, MAX_HOSTKEYS);
769: charptr = &options->host_key_files[*intptr];
1.180 djm 770: parse_filename:
1.94 markus 771: arg = strdelim(&cp);
772: if (!arg || *arg == '\0')
773: fatal("%s line %d: missing file name.",
774: filename, linenum);
1.153 dtucker 775: if (*activep && *charptr == NULL) {
1.202 djm 776: *charptr = derelativise_path(arg);
1.94 markus 777: /* increase optional counter */
778: if (intptr != NULL)
779: *intptr = *intptr + 1;
780: }
781: break;
1.76 stevesk 782:
1.203 djm 783: case sHostCertificate:
784: intptr = &options->num_host_cert_files;
785: if (*intptr >= MAX_HOSTKEYS)
786: fatal("%s line %d: too many host certificates "
787: "specified (max %d).", filename, linenum,
788: MAX_HOSTCERTS);
789: charptr = &options->host_cert_files[*intptr];
790: goto parse_filename;
791: break;
792:
1.94 markus 793: case sPidFile:
794: charptr = &options->pid_file;
795: goto parse_filename;
1.25 markus 796:
1.94 markus 797: case sPermitRootLogin:
798: intptr = &options->permit_root_login;
799: arg = strdelim(&cp);
800: if (!arg || *arg == '\0')
801: fatal("%s line %d: missing yes/"
802: "without-password/forced-commands-only/no "
803: "argument.", filename, linenum);
804: value = 0; /* silence compiler */
805: if (strcmp(arg, "without-password") == 0)
806: value = PERMIT_NO_PASSWD;
807: else if (strcmp(arg, "forced-commands-only") == 0)
808: value = PERMIT_FORCED_ONLY;
809: else if (strcmp(arg, "yes") == 0)
810: value = PERMIT_YES;
811: else if (strcmp(arg, "no") == 0)
812: value = PERMIT_NO;
813: else
814: fatal("%s line %d: Bad yes/"
815: "without-password/forced-commands-only/no "
816: "argument: %s", filename, linenum, arg);
1.175 dtucker 817: if (*activep && *intptr == -1)
1.94 markus 818: *intptr = value;
819: break;
1.36 markus 820:
1.94 markus 821: case sIgnoreRhosts:
822: intptr = &options->ignore_rhosts;
1.180 djm 823: parse_flag:
1.94 markus 824: arg = strdelim(&cp);
825: if (!arg || *arg == '\0')
826: fatal("%s line %d: missing yes/no argument.",
827: filename, linenum);
828: value = 0; /* silence compiler */
829: if (strcmp(arg, "yes") == 0)
830: value = 1;
831: else if (strcmp(arg, "no") == 0)
832: value = 0;
833: else
834: fatal("%s line %d: Bad yes/no argument: %s",
835: filename, linenum, arg);
1.153 dtucker 836: if (*activep && *intptr == -1)
1.94 markus 837: *intptr = value;
838: break;
839:
840: case sIgnoreUserKnownHosts:
841: intptr = &options->ignore_user_known_hosts;
842: goto parse_flag;
843:
844: case sRhostsRSAAuthentication:
845: intptr = &options->rhosts_rsa_authentication;
846: goto parse_flag;
847:
848: case sHostbasedAuthentication:
849: intptr = &options->hostbased_authentication;
850: goto parse_flag;
851:
852: case sHostbasedUsesNameFromPacketOnly:
853: intptr = &options->hostbased_uses_name_from_packet_only;
854: goto parse_flag;
855:
856: case sRSAAuthentication:
857: intptr = &options->rsa_authentication;
858: goto parse_flag;
859:
860: case sPubkeyAuthentication:
861: intptr = &options->pubkey_authentication;
862: goto parse_flag;
1.119 jakob 863:
1.94 markus 864: case sKerberosAuthentication:
865: intptr = &options->kerberos_authentication;
866: goto parse_flag;
867:
868: case sKerberosOrLocalPasswd:
869: intptr = &options->kerberos_or_local_passwd;
870: goto parse_flag;
871:
872: case sKerberosTicketCleanup:
873: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 874: goto parse_flag;
875:
876: case sKerberosGetAFSToken:
877: intptr = &options->kerberos_get_afs_token;
1.125 markus 878: goto parse_flag;
879:
880: case sGssAuthentication:
881: intptr = &options->gss_authentication;
882: goto parse_flag;
883:
884: case sGssCleanupCreds:
885: intptr = &options->gss_cleanup_creds;
1.94 markus 886: goto parse_flag;
887:
888: case sPasswordAuthentication:
889: intptr = &options->password_authentication;
890: goto parse_flag;
891:
1.190 djm 892: case sZeroKnowledgePasswordAuthentication:
893: intptr = &options->zero_knowledge_password_authentication;
894: goto parse_flag;
895:
1.94 markus 896: case sKbdInteractiveAuthentication:
897: intptr = &options->kbd_interactive_authentication;
898: goto parse_flag;
899:
900: case sChallengeResponseAuthentication:
901: intptr = &options->challenge_response_authentication;
902: goto parse_flag;
903:
904: case sPrintMotd:
905: intptr = &options->print_motd;
906: goto parse_flag;
907:
908: case sPrintLastLog:
909: intptr = &options->print_lastlog;
910: goto parse_flag;
911:
912: case sX11Forwarding:
913: intptr = &options->x11_forwarding;
914: goto parse_flag;
915:
916: case sX11DisplayOffset:
917: intptr = &options->x11_display_offset;
918: goto parse_int;
1.99 stevesk 919:
920: case sX11UseLocalhost:
921: intptr = &options->x11_use_localhost;
922: goto parse_flag;
1.94 markus 923:
924: case sXAuthLocation:
925: charptr = &options->xauth_location;
926: goto parse_filename;
927:
928: case sStrictModes:
929: intptr = &options->strict_modes;
930: goto parse_flag;
931:
1.129 markus 932: case sTCPKeepAlive:
933: intptr = &options->tcp_keep_alive;
1.94 markus 934: goto parse_flag;
935:
936: case sEmptyPasswd:
937: intptr = &options->permit_empty_passwd;
1.113 markus 938: goto parse_flag;
939:
940: case sPermitUserEnvironment:
941: intptr = &options->permit_user_env;
1.94 markus 942: goto parse_flag;
943:
944: case sUseLogin:
945: intptr = &options->use_login;
1.111 markus 946: goto parse_flag;
947:
948: case sCompression:
949: intptr = &options->compression;
1.143 markus 950: arg = strdelim(&cp);
951: if (!arg || *arg == '\0')
952: fatal("%s line %d: missing yes/no/delayed "
953: "argument.", filename, linenum);
954: value = 0; /* silence compiler */
955: if (strcmp(arg, "delayed") == 0)
956: value = COMP_DELAYED;
957: else if (strcmp(arg, "yes") == 0)
958: value = COMP_ZLIB;
959: else if (strcmp(arg, "no") == 0)
960: value = COMP_NONE;
961: else
962: fatal("%s line %d: Bad yes/no/delayed "
963: "argument: %s", filename, linenum, arg);
964: if (*intptr == -1)
965: *intptr = value;
966: break;
1.94 markus 967:
968: case sGatewayPorts:
969: intptr = &options->gateway_ports;
1.139 djm 970: arg = strdelim(&cp);
971: if (!arg || *arg == '\0')
972: fatal("%s line %d: missing yes/no/clientspecified "
973: "argument.", filename, linenum);
974: value = 0; /* silence compiler */
975: if (strcmp(arg, "clientspecified") == 0)
976: value = 2;
977: else if (strcmp(arg, "yes") == 0)
978: value = 1;
979: else if (strcmp(arg, "no") == 0)
980: value = 0;
981: else
982: fatal("%s line %d: Bad yes/no/clientspecified "
983: "argument: %s", filename, linenum, arg);
1.169 dtucker 984: if (*activep && *intptr == -1)
1.139 djm 985: *intptr = value;
986: break;
1.25 markus 987:
1.122 markus 988: case sUseDNS:
989: intptr = &options->use_dns;
1.94 markus 990: goto parse_flag;
1.53 markus 991:
1.94 markus 992: case sLogFacility:
1.174 dtucker 993: log_facility_ptr = &options->log_facility;
1.94 markus 994: arg = strdelim(&cp);
995: value = log_facility_number(arg);
1.101 markus 996: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 997: fatal("%.200s line %d: unsupported log facility '%s'",
998: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 999: if (*log_facility_ptr == -1)
1000: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1001: break;
1.25 markus 1002:
1.94 markus 1003: case sLogLevel:
1.174 dtucker 1004: log_level_ptr = &options->log_level;
1.94 markus 1005: arg = strdelim(&cp);
1006: value = log_level_number(arg);
1.101 markus 1007: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1008: fatal("%.200s line %d: unsupported log level '%s'",
1009: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1010: if (*log_level_ptr == -1)
1011: *log_level_ptr = (LogLevel) value;
1.94 markus 1012: break;
1013:
1014: case sAllowTcpForwarding:
1015: intptr = &options->allow_tcp_forwarding;
1016: goto parse_flag;
1.102 provos 1017:
1.178 pyr 1018: case sAllowAgentForwarding:
1019: intptr = &options->allow_agent_forwarding;
1020: goto parse_flag;
1021:
1.102 provos 1022: case sUsePrivilegeSeparation:
1023: intptr = &use_privsep;
1024: goto parse_flag;
1.94 markus 1025:
1026: case sAllowUsers:
1027: while ((arg = strdelim(&cp)) && *arg != '\0') {
1028: if (options->num_allow_users >= MAX_ALLOW_USERS)
1029: fatal("%s line %d: too many allow users.",
1030: filename, linenum);
1.112 deraadt 1031: options->allow_users[options->num_allow_users++] =
1032: xstrdup(arg);
1.94 markus 1033: }
1034: break;
1.25 markus 1035:
1.94 markus 1036: case sDenyUsers:
1037: while ((arg = strdelim(&cp)) && *arg != '\0') {
1038: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1039: fatal("%s line %d: too many deny users.",
1.94 markus 1040: filename, linenum);
1.112 deraadt 1041: options->deny_users[options->num_deny_users++] =
1042: xstrdup(arg);
1.94 markus 1043: }
1044: break;
1.25 markus 1045:
1.94 markus 1046: case sAllowGroups:
1047: while ((arg = strdelim(&cp)) && *arg != '\0') {
1048: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1049: fatal("%s line %d: too many allow groups.",
1050: filename, linenum);
1.112 deraadt 1051: options->allow_groups[options->num_allow_groups++] =
1052: xstrdup(arg);
1.94 markus 1053: }
1054: break;
1.33 markus 1055:
1.94 markus 1056: case sDenyGroups:
1057: while ((arg = strdelim(&cp)) && *arg != '\0') {
1058: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1059: fatal("%s line %d: too many deny groups.",
1060: filename, linenum);
1061: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1062: }
1063: break;
1.66 markus 1064:
1.94 markus 1065: case sCiphers:
1066: arg = strdelim(&cp);
1067: if (!arg || *arg == '\0')
1068: fatal("%s line %d: Missing argument.", filename, linenum);
1069: if (!ciphers_valid(arg))
1070: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1071: filename, linenum, arg ? arg : "<NONE>");
1072: if (options->ciphers == NULL)
1073: options->ciphers = xstrdup(arg);
1074: break;
1.33 markus 1075:
1.94 markus 1076: case sMacs:
1077: arg = strdelim(&cp);
1078: if (!arg || *arg == '\0')
1079: fatal("%s line %d: Missing argument.", filename, linenum);
1080: if (!mac_valid(arg))
1081: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1082: filename, linenum, arg ? arg : "<NONE>");
1083: if (options->macs == NULL)
1084: options->macs = xstrdup(arg);
1085: break;
1.43 jakob 1086:
1.94 markus 1087: case sProtocol:
1088: intptr = &options->protocol;
1089: arg = strdelim(&cp);
1090: if (!arg || *arg == '\0')
1091: fatal("%s line %d: Missing argument.", filename, linenum);
1092: value = proto_spec(arg);
1093: if (value == SSH_PROTO_UNKNOWN)
1094: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1095: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1096: if (*intptr == SSH_PROTO_UNKNOWN)
1097: *intptr = value;
1098: break;
1099:
1100: case sSubsystem:
1101: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1102: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1103: filename, linenum);
1.94 markus 1104: }
1105: arg = strdelim(&cp);
1106: if (!arg || *arg == '\0')
1107: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1108: filename, linenum);
1.153 dtucker 1109: if (!*activep) {
1110: arg = strdelim(&cp);
1111: break;
1112: }
1.94 markus 1113: for (i = 0; i < options->num_subsystems; i++)
1114: if (strcmp(arg, options->subsystem_name[i]) == 0)
1115: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1116: filename, linenum, arg);
1.94 markus 1117: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1118: arg = strdelim(&cp);
1119: if (!arg || *arg == '\0')
1120: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1121: filename, linenum);
1.94 markus 1122: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1123:
1124: /* Collect arguments (separate to executable) */
1125: p = xstrdup(arg);
1126: len = strlen(p) + 1;
1127: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1128: len += 1 + strlen(arg);
1129: p = xrealloc(p, 1, len);
1130: strlcat(p, " ", len);
1131: strlcat(p, arg, len);
1132: }
1133: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1134: options->num_subsystems++;
1135: break;
1.46 markus 1136:
1.94 markus 1137: case sMaxStartups:
1138: arg = strdelim(&cp);
1139: if (!arg || *arg == '\0')
1140: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1141: filename, linenum);
1.94 markus 1142: if ((n = sscanf(arg, "%d:%d:%d",
1143: &options->max_startups_begin,
1144: &options->max_startups_rate,
1145: &options->max_startups)) == 3) {
1146: if (options->max_startups_begin >
1147: options->max_startups ||
1148: options->max_startups_rate > 100 ||
1149: options->max_startups_rate < 1)
1.50 markus 1150: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1151: filename, linenum);
1.94 markus 1152: } else if (n != 1)
1153: fatal("%s line %d: Illegal MaxStartups spec.",
1154: filename, linenum);
1155: else
1156: options->max_startups = options->max_startups_begin;
1157: break;
1.133 dtucker 1158:
1159: case sMaxAuthTries:
1160: intptr = &options->max_authtries;
1161: goto parse_int;
1.94 markus 1162:
1.180 djm 1163: case sMaxSessions:
1164: intptr = &options->max_sessions;
1165: goto parse_int;
1166:
1.94 markus 1167: case sBanner:
1168: charptr = &options->banner;
1169: goto parse_filename;
1.176 djm 1170:
1.94 markus 1171: /*
1172: * These options can contain %X options expanded at
1173: * connect time, so that you can specify paths like:
1174: *
1175: * AuthorizedKeysFile /etc/ssh_keys/%u
1176: */
1177: case sAuthorizedKeysFile:
1178: case sAuthorizedKeysFile2:
1.163 stevesk 1179: charptr = (opcode == sAuthorizedKeysFile) ?
1.94 markus 1180: &options->authorized_keys_file :
1181: &options->authorized_keys_file2;
1.205 djm 1182: arg = strdelim(&cp);
1183: if (!arg || *arg == '\0')
1184: fatal("%s line %d: missing file name.",
1185: filename, linenum);
1186: if (*activep && *charptr == NULL) {
1.206 markus 1187: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1188: /* increase optional counter */
1189: if (intptr != NULL)
1190: *intptr = *intptr + 1;
1191: }
1192: break;
1.94 markus 1193:
1194: case sClientAliveInterval:
1195: intptr = &options->client_alive_interval;
1196: goto parse_time;
1197:
1198: case sClientAliveCountMax:
1199: intptr = &options->client_alive_count_max;
1200: goto parse_int;
1.131 djm 1201:
1202: case sAcceptEnv:
1203: while ((arg = strdelim(&cp)) && *arg != '\0') {
1204: if (strchr(arg, '=') != NULL)
1205: fatal("%s line %d: Invalid environment name.",
1206: filename, linenum);
1207: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1208: fatal("%s line %d: too many allow env.",
1209: filename, linenum);
1.153 dtucker 1210: if (!*activep)
1211: break;
1.131 djm 1212: options->accept_env[options->num_accept_env++] =
1213: xstrdup(arg);
1214: }
1215: break;
1.145 reyk 1216:
1217: case sPermitTunnel:
1218: intptr = &options->permit_tun;
1.146 reyk 1219: arg = strdelim(&cp);
1220: if (!arg || *arg == '\0')
1221: fatal("%s line %d: Missing yes/point-to-point/"
1222: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1223: value = -1;
1224: for (i = 0; tunmode_desc[i].val != -1; i++)
1225: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1226: value = tunmode_desc[i].val;
1227: break;
1228: }
1229: if (value == -1)
1.146 reyk 1230: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1231: "no argument: %s", filename, linenum, arg);
1232: if (*intptr == -1)
1233: *intptr = value;
1234: break;
1.94 markus 1235:
1.153 dtucker 1236: case sMatch:
1237: if (cmdline)
1238: fatal("Match directive not supported as a command-line "
1239: "option");
1240: value = match_cfg_line(&cp, linenum, user, host, address);
1241: if (value < 0)
1242: fatal("%s line %d: Bad Match condition", filename,
1243: linenum);
1244: *activep = value;
1.156 dtucker 1245: break;
1246:
1247: case sPermitOpen:
1248: arg = strdelim(&cp);
1249: if (!arg || *arg == '\0')
1250: fatal("%s line %d: missing PermitOpen specification",
1251: filename, linenum);
1.167 dtucker 1252: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1253: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1254: if (*activep && n == -1) {
1.156 dtucker 1255: channel_clear_adm_permitted_opens();
1.159 dtucker 1256: options->num_permitted_opens = 0;
1257: }
1.156 dtucker 1258: break;
1259: }
1.166 dtucker 1260: if (*activep && n == -1)
1261: channel_clear_adm_permitted_opens();
1.159 dtucker 1262: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1263: p = hpdelim(&arg);
1264: if (p == NULL)
1265: fatal("%s line %d: missing host in PermitOpen",
1266: filename, linenum);
1267: p = cleanhostname(p);
1.194 djm 1268: if (arg == NULL || (port = a2port(arg)) <= 0)
1.159 dtucker 1269: fatal("%s line %d: bad port number in "
1270: "PermitOpen", filename, linenum);
1.166 dtucker 1271: if (*activep && n == -1)
1.159 dtucker 1272: options->num_permitted_opens =
1273: channel_add_adm_permitted_opens(p, port);
1274: }
1.153 dtucker 1275: break;
1276:
1.158 dtucker 1277: case sForceCommand:
1278: if (cp == NULL)
1279: fatal("%.200s line %d: Missing argument.", filename,
1280: linenum);
1281: len = strspn(cp, WHITESPACE);
1282: if (*activep && options->adm_forced_command == NULL)
1283: options->adm_forced_command = xstrdup(cp + len);
1284: return 0;
1285:
1.176 djm 1286: case sChrootDirectory:
1287: charptr = &options->chroot_directory;
1.177 djm 1288:
1289: arg = strdelim(&cp);
1290: if (!arg || *arg == '\0')
1291: fatal("%s line %d: missing file name.",
1292: filename, linenum);
1293: if (*activep && *charptr == NULL)
1294: *charptr = xstrdup(arg);
1295: break;
1.176 djm 1296:
1.204 djm 1297: case sTrustedUserCAKeys:
1298: charptr = &options->trusted_user_ca_keys;
1299: goto parse_filename;
1300:
1301: case sRevokedKeys:
1302: charptr = &options->revoked_keys_file;
1303: goto parse_filename;
1304:
1.94 markus 1305: case sDeprecated:
1.117 itojun 1306: logit("%s line %d: Deprecated option %s",
1.121 jakob 1307: filename, linenum, arg);
1308: while (arg)
1309: arg = strdelim(&cp);
1310: break;
1311:
1312: case sUnsupported:
1313: logit("%s line %d: Unsupported option %s",
1.94 markus 1314: filename, linenum, arg);
1315: while (arg)
1316: arg = strdelim(&cp);
1317: break;
1318:
1319: default:
1320: fatal("%s line %d: Missing handler for opcode %s (%d)",
1321: filename, linenum, arg, opcode);
1322: }
1323: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1324: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1325: filename, linenum, arg);
1326: return 0;
1327: }
1328:
1329: /* Reads the server configuration file. */
1.25 markus 1330:
1.94 markus 1331: void
1.134 djm 1332: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1333: {
1.134 djm 1334: char line[1024], *cp;
1.94 markus 1335: FILE *f;
1.81 stevesk 1336:
1.134 djm 1337: debug2("%s: filename %s", __func__, filename);
1338: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1339: perror(filename);
1340: exit(1);
1341: }
1.134 djm 1342: buffer_clear(conf);
1343: while (fgets(line, sizeof(line), f)) {
1344: /*
1345: * Trim out comments and strip whitespace
1.135 deraadt 1346: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1347: * line numbers later for error messages
1348: */
1349: if ((cp = strchr(line, '#')) != NULL)
1350: memcpy(cp, "\n", 2);
1351: cp = line + strspn(line, " \t\r");
1352:
1353: buffer_append(conf, cp, strlen(cp));
1354: }
1355: buffer_append(conf, "\0", 1);
1356: fclose(f);
1357: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1358: }
1359:
1360: void
1.153 dtucker 1361: parse_server_match_config(ServerOptions *options, const char *user,
1362: const char *host, const char *address)
1363: {
1364: ServerOptions mo;
1365:
1366: initialize_server_options(&mo);
1367: parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
1.168 dtucker 1368: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1369: }
1370:
1.168 dtucker 1371: /* Helper macros */
1372: #define M_CP_INTOPT(n) do {\
1373: if (src->n != -1) \
1374: dst->n = src->n; \
1375: } while (0)
1376: #define M_CP_STROPT(n) do {\
1377: if (src->n != NULL) { \
1378: if (dst->n != NULL) \
1379: xfree(dst->n); \
1380: dst->n = src->n; \
1381: } \
1382: } while(0)
1383:
1384: /*
1385: * Copy any supported values that are set.
1386: *
1.195 jj 1387: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1388: * array values that are not used pre-authentication, because any that we
1389: * do use must be explictly sent in mm_getpwnamallow().
1390: */
1.153 dtucker 1391: void
1.168 dtucker 1392: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1393: {
1.168 dtucker 1394: M_CP_INTOPT(password_authentication);
1395: M_CP_INTOPT(gss_authentication);
1396: M_CP_INTOPT(rsa_authentication);
1397: M_CP_INTOPT(pubkey_authentication);
1398: M_CP_INTOPT(kerberos_authentication);
1399: M_CP_INTOPT(hostbased_authentication);
1400: M_CP_INTOPT(kbd_interactive_authentication);
1.190 djm 1401: M_CP_INTOPT(zero_knowledge_password_authentication);
1.175 dtucker 1402: M_CP_INTOPT(permit_root_login);
1.188 djm 1403: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1404:
1405: M_CP_INTOPT(allow_tcp_forwarding);
1.178 pyr 1406: M_CP_INTOPT(allow_agent_forwarding);
1.168 dtucker 1407: M_CP_INTOPT(gateway_ports);
1408: M_CP_INTOPT(x11_display_offset);
1409: M_CP_INTOPT(x11_forwarding);
1410: M_CP_INTOPT(x11_use_localhost);
1.180 djm 1411: M_CP_INTOPT(max_sessions);
1.184 dtucker 1412: M_CP_INTOPT(max_authtries);
1.168 dtucker 1413:
1414: M_CP_STROPT(banner);
1415: if (preauth)
1416: return;
1417: M_CP_STROPT(adm_forced_command);
1.176 djm 1418: M_CP_STROPT(chroot_directory);
1.204 djm 1419: M_CP_STROPT(trusted_user_ca_keys);
1420: M_CP_STROPT(revoked_keys_file);
1.153 dtucker 1421: }
1.168 dtucker 1422:
1423: #undef M_CP_INTOPT
1424: #undef M_CP_STROPT
1.153 dtucker 1425:
1426: void
1427: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1428: const char *user, const char *host, const char *address)
1.134 djm 1429: {
1.153 dtucker 1430: int active, linenum, bad_options = 0;
1.136 dtucker 1431: char *cp, *obuf, *cbuf;
1.134 djm 1432:
1433: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1434:
1.136 dtucker 1435: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.153 dtucker 1436: active = user ? 0 : 1;
1.137 dtucker 1437: linenum = 1;
1.140 deraadt 1438: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1439: if (process_server_config_line(options, cp, filename,
1.153 dtucker 1440: linenum++, &active, user, host, address) != 0)
1.94 markus 1441: bad_options++;
1.1 deraadt 1442: }
1.136 dtucker 1443: xfree(obuf);
1.78 stevesk 1444: if (bad_options > 0)
1445: fatal("%s: terminating, %d bad configuration options",
1446: filename, bad_options);
1.182 dtucker 1447: }
1448:
1449: static const char *
1450: fmt_intarg(ServerOpCodes code, int val)
1451: {
1452: if (code == sAddressFamily) {
1453: switch (val) {
1454: case AF_INET:
1455: return "inet";
1456: case AF_INET6:
1457: return "inet6";
1458: case AF_UNSPEC:
1459: return "any";
1460: default:
1461: return "UNKNOWN";
1462: }
1463: }
1464: if (code == sPermitRootLogin) {
1465: switch (val) {
1466: case PERMIT_NO_PASSWD:
1.191 jmc 1467: return "without-password";
1.182 dtucker 1468: case PERMIT_FORCED_ONLY:
1469: return "forced-commands-only";
1470: case PERMIT_YES:
1471: return "yes";
1472: }
1473: }
1474: if (code == sProtocol) {
1475: switch (val) {
1476: case SSH_PROTO_1:
1477: return "1";
1478: case SSH_PROTO_2:
1479: return "2";
1480: case (SSH_PROTO_1|SSH_PROTO_2):
1481: return "2,1";
1482: default:
1483: return "UNKNOWN";
1484: }
1485: }
1486: if (code == sGatewayPorts && val == 2)
1487: return "clientspecified";
1488: if (code == sCompression && val == COMP_DELAYED)
1489: return "delayed";
1490: switch (val) {
1491: case -1:
1492: return "unset";
1493: case 0:
1494: return "no";
1495: case 1:
1496: return "yes";
1497: }
1498: return "UNKNOWN";
1499: }
1500:
1501: static const char *
1502: lookup_opcode_name(ServerOpCodes code)
1503: {
1504: u_int i;
1505:
1506: for (i = 0; keywords[i].name != NULL; i++)
1507: if (keywords[i].opcode == code)
1508: return(keywords[i].name);
1509: return "UNKNOWN";
1510: }
1511:
1512: static void
1513: dump_cfg_int(ServerOpCodes code, int val)
1514: {
1515: printf("%s %d\n", lookup_opcode_name(code), val);
1516: }
1517:
1518: static void
1519: dump_cfg_fmtint(ServerOpCodes code, int val)
1520: {
1521: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1522: }
1523:
1524: static void
1525: dump_cfg_string(ServerOpCodes code, const char *val)
1526: {
1527: if (val == NULL)
1528: return;
1529: printf("%s %s\n", lookup_opcode_name(code), val);
1530: }
1531:
1532: static void
1533: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
1534: {
1535: u_int i;
1536:
1537: for (i = 0; i < count; i++)
1538: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
1539: }
1540:
1541: void
1542: dump_config(ServerOptions *o)
1543: {
1544: u_int i;
1545: int ret;
1546: struct addrinfo *ai;
1547: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1548:
1549: /* these are usually at the top of the config */
1550: for (i = 0; i < o->num_ports; i++)
1551: printf("port %d\n", o->ports[i]);
1552: dump_cfg_fmtint(sProtocol, o->protocol);
1553: dump_cfg_fmtint(sAddressFamily, o->address_family);
1554:
1555: /* ListenAddress must be after Port */
1556: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
1557: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1558: sizeof(addr), port, sizeof(port),
1559: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1560: error("getnameinfo failed: %.100s",
1561: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
1562: strerror(errno));
1563: } else {
1564: if (ai->ai_family == AF_INET6)
1565: printf("listenaddress [%s]:%s\n", addr, port);
1566: else
1567: printf("listenaddress %s:%s\n", addr, port);
1568: }
1569: }
1570:
1571: /* integer arguments */
1572: dump_cfg_int(sServerKeyBits, o->server_key_bits);
1573: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
1574: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
1575: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
1576: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 1577: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 1578: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
1579: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1580:
1581: /* formatted integer arguments */
1582: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
1583: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
1584: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
1585: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
1586: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
1587: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
1588: o->hostbased_uses_name_from_packet_only);
1589: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
1590: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 1591: #ifdef KRB5
1.182 dtucker 1592: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
1593: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
1594: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
1595: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 1596: #endif
1597: #ifdef GSSAPI
1.182 dtucker 1598: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
1599: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.190 djm 1600: #endif
1601: #ifdef JPAKE
1602: dump_cfg_fmtint(sZeroKnowledgePasswordAuthentication,
1603: o->zero_knowledge_password_authentication);
1.187 djm 1604: #endif
1.182 dtucker 1605: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
1606: dump_cfg_fmtint(sKbdInteractiveAuthentication,
1607: o->kbd_interactive_authentication);
1608: dump_cfg_fmtint(sChallengeResponseAuthentication,
1609: o->challenge_response_authentication);
1610: dump_cfg_fmtint(sPrintMotd, o->print_motd);
1611: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
1612: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
1613: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1614: dump_cfg_fmtint(sStrictModes, o->strict_modes);
1615: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
1616: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
1617: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
1618: dump_cfg_fmtint(sUseLogin, o->use_login);
1619: dump_cfg_fmtint(sCompression, o->compression);
1620: dump_cfg_fmtint(sGatewayPorts, o->gateway_ports);
1621: dump_cfg_fmtint(sUseDNS, o->use_dns);
1622: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1623: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1624:
1625: /* string arguments */
1626: dump_cfg_string(sPidFile, o->pid_file);
1627: dump_cfg_string(sXAuthLocation, o->xauth_location);
1628: dump_cfg_string(sCiphers, o->ciphers);
1629: dump_cfg_string(sMacs, o->macs);
1630: dump_cfg_string(sBanner, o->banner);
1631: dump_cfg_string(sAuthorizedKeysFile, o->authorized_keys_file);
1632: dump_cfg_string(sAuthorizedKeysFile2, o->authorized_keys_file2);
1633: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 1634: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 1635: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
1636: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.182 dtucker 1637:
1638: /* string arguments requiring a lookup */
1639: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
1640: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
1641:
1642: /* string array arguments */
1643: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1644: o->host_key_files);
1.203 djm 1645: dump_cfg_strarray(sHostKeyFile, o->num_host_cert_files,
1646: o->host_cert_files);
1.182 dtucker 1647: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
1648: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
1649: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
1650: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
1651: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1652:
1653: /* other arguments */
1654: for (i = 0; i < o->num_subsystems; i++)
1655: printf("subsystem %s %s\n", o->subsystem_name[i],
1656: o->subsystem_args[i]);
1657:
1658: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
1659: o->max_startups_rate, o->max_startups);
1660:
1661: for (i = 0; tunmode_desc[i].val != -1; i++)
1662: if (tunmode_desc[i].val == o->permit_tun) {
1663: s = tunmode_desc[i].text;
1664: break;
1665: }
1666: dump_cfg_string(sPermitTunnel, s);
1667:
1668: channel_print_adm_permitted_opens();
1.1 deraadt 1669: }
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