Annotation of src/usr.bin/ssh/servconf.c, Revision 1.205
1.205 ! djm 1: /* $OpenBSD: servconf.c,v 1.204 2010/03/04 10:36:03 djm 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: {
436: char *expanded, *ret, *cwd;
437:
438: expanded = tilde_expand_filename(path, getuid());
439: if (*expanded == '/')
440: return expanded;
441: if ((cwd = getcwd(NULL, 0)) == NULL)
442: fatal("%s: getcwd: %s", __func__, strerror(errno));
443: xasprintf(&ret, "%s/%s", cwd, expanded);
444: xfree(cwd);
445: xfree(expanded);
446: return ret;
447: }
448:
1.84 itojun 449: static void
1.194 djm 450: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 451: {
1.142 djm 452: u_int i;
1.74 stevesk 453:
454: if (options->num_ports == 0)
455: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 456: if (options->address_family == -1)
457: options->address_family = AF_UNSPEC;
1.76 stevesk 458: if (port == 0)
1.74 stevesk 459: for (i = 0; i < options->num_ports; i++)
460: add_one_listen_addr(options, addr, options->ports[i]);
461: else
1.76 stevesk 462: add_one_listen_addr(options, addr, port);
1.74 stevesk 463: }
464:
1.84 itojun 465: static void
1.194 djm 466: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 467: {
468: struct addrinfo hints, *ai, *aitop;
469: char strport[NI_MAXSERV];
470: int gaierr;
471:
1.74 stevesk 472: memset(&hints, 0, sizeof(hints));
1.138 djm 473: hints.ai_family = options->address_family;
1.74 stevesk 474: hints.ai_socktype = SOCK_STREAM;
475: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 476: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 477: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
478: fatal("bad addr or host: %s (%s)",
479: addr ? addr : "<NULL>",
1.173 dtucker 480: ssh_gai_strerror(gaierr));
1.74 stevesk 481: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
482: ;
483: ai->ai_next = options->listen_addrs;
484: options->listen_addrs = aitop;
1.29 markus 485: }
486:
1.153 dtucker 487: /*
488: * The strategy for the Match blocks is that the config file is parsed twice.
489: *
490: * The first time is at startup. activep is initialized to 1 and the
491: * directives in the global context are processed and acted on. Hitting a
492: * Match directive unsets activep and the directives inside the block are
493: * checked for syntax only.
494: *
495: * The second time is after a connection has been established but before
496: * authentication. activep is initialized to 2 and global config directives
497: * are ignored since they have already been processed. If the criteria in a
498: * Match block is met, activep is set and the subsequent directives
499: * processed and actioned until EOF or another Match block unsets it. Any
500: * options set are copied into the main server config.
501: *
502: * Potential additions/improvements:
503: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
504: *
505: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
506: * Match Address 192.168.0.*
507: * Tag trusted
508: * Match Group wheel
509: * Tag trusted
510: * Match Tag trusted
511: * AllowTcpForwarding yes
512: * GatewayPorts clientspecified
513: * [...]
514: *
515: * - Add a PermittedChannelRequests directive
516: * Match Group shell
517: * PermittedChannelRequests session,forwarded-tcpip
518: */
519:
520: static int
1.165 dtucker 521: match_cfg_line_group(const char *grps, int line, const char *user)
522: {
523: int result = 0;
524: struct passwd *pw;
525:
526: if (user == NULL)
527: goto out;
528:
529: if ((pw = getpwnam(user)) == NULL) {
530: debug("Can't match group at line %d because user %.100s does "
531: "not exist", line, user);
532: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
533: debug("Can't Match group because user %.100s not in any group "
534: "at line %d", user, line);
1.186 djm 535: } else if (ga_match_pattern_list(grps) != 1) {
536: debug("user %.100s does not match group list %.100s at line %d",
537: user, grps, line);
1.165 dtucker 538: } else {
1.186 djm 539: debug("user %.100s matched group list %.100s at line %d", user,
540: grps, line);
1.165 dtucker 541: result = 1;
542: }
543: out:
544: ga_free();
545: return result;
546: }
547:
548: static int
1.153 dtucker 549: match_cfg_line(char **condition, int line, const char *user, const char *host,
550: const char *address)
551: {
552: int result = 1;
553: char *arg, *attrib, *cp = *condition;
554: size_t len;
555:
556: if (user == NULL)
557: debug3("checking syntax for 'Match %s'", cp);
558: else
559: debug3("checking match for '%s' user %s host %s addr %s", cp,
560: user ? user : "(null)", host ? host : "(null)",
561: address ? address : "(null)");
562:
563: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
564: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
565: error("Missing Match criteria for %s", attrib);
566: return -1;
567: }
568: len = strlen(arg);
569: if (strcasecmp(attrib, "user") == 0) {
570: if (!user) {
571: result = 0;
572: continue;
573: }
574: if (match_pattern_list(user, arg, len, 0) != 1)
575: result = 0;
576: else
577: debug("user %.100s matched 'User %.100s' at "
578: "line %d", user, arg, line);
1.165 dtucker 579: } else if (strcasecmp(attrib, "group") == 0) {
580: switch (match_cfg_line_group(arg, line, user)) {
581: case -1:
582: return -1;
583: case 0:
584: result = 0;
585: }
1.153 dtucker 586: } else if (strcasecmp(attrib, "host") == 0) {
587: if (!host) {
588: result = 0;
589: continue;
590: }
591: if (match_hostname(host, arg, len) != 1)
592: result = 0;
593: else
594: debug("connection from %.100s matched 'Host "
595: "%.100s' at line %d", host, arg, line);
596: } else if (strcasecmp(attrib, "address") == 0) {
1.181 djm 597: switch (addr_match_list(address, arg)) {
598: case 1:
599: debug("connection from %.100s matched 'Address "
600: "%.100s' at line %d", address, arg, line);
601: break;
602: case 0:
1.183 djm 603: case -1:
1.153 dtucker 604: result = 0;
1.181 djm 605: break;
1.183 djm 606: case -2:
1.181 djm 607: return -1;
1.153 dtucker 608: }
609: } else {
610: error("Unsupported Match attribute %s", attrib);
611: return -1;
612: }
613: }
614: if (user != NULL)
615: debug3("match %sfound", result ? "" : "not ");
616: *condition = cp;
617: return result;
618: }
619:
1.158 dtucker 620: #define WHITESPACE " \t\r\n"
621:
1.94 markus 622: int
623: process_server_config_line(ServerOptions *options, char *line,
1.153 dtucker 624: const char *filename, int linenum, int *activep, const char *user,
625: const char *host, const char *address)
1.1 deraadt 626: {
1.74 stevesk 627: char *cp, **charptr, *arg, *p;
1.153 dtucker 628: int cmdline = 0, *intptr, value, n;
1.174 dtucker 629: SyslogFacility *log_facility_ptr;
630: LogLevel *log_level_ptr;
1.25 markus 631: ServerOpCodes opcode;
1.194 djm 632: int port;
1.153 dtucker 633: u_int i, flags = 0;
1.151 djm 634: size_t len;
1.25 markus 635:
1.94 markus 636: cp = line;
1.148 dtucker 637: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 638: return 0;
1.94 markus 639: /* Ignore leading whitespace */
640: if (*arg == '\0')
641: arg = strdelim(&cp);
642: if (!arg || !*arg || *arg == '#')
643: return 0;
644: intptr = NULL;
645: charptr = NULL;
1.153 dtucker 646: opcode = parse_token(arg, filename, linenum, &flags);
647:
648: if (activep == NULL) { /* We are processing a command line directive */
649: cmdline = 1;
650: activep = &cmdline;
651: }
652: if (*activep && opcode != sMatch)
653: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
654: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
655: if (user == NULL) {
656: fatal("%s line %d: Directive '%s' is not allowed "
657: "within a Match block", filename, linenum, arg);
658: } else { /* this is a directive we have already processed */
659: while (arg)
660: arg = strdelim(&cp);
661: return 0;
662: }
663: }
664:
1.94 markus 665: switch (opcode) {
666: case sBadOption:
667: return -1;
668: case sPort:
669: /* ignore ports from configfile if cmdline specifies ports */
670: if (options->ports_from_cmdline)
671: return 0;
672: if (options->listen_addrs != NULL)
673: fatal("%s line %d: ports must be specified before "
1.98 stevesk 674: "ListenAddress.", filename, linenum);
1.94 markus 675: if (options->num_ports >= MAX_PORTS)
676: fatal("%s line %d: too many ports.",
677: filename, linenum);
1.48 provos 678: arg = strdelim(&cp);
1.94 markus 679: if (!arg || *arg == '\0')
680: fatal("%s line %d: missing port number.",
681: filename, linenum);
682: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 683: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 684: fatal("%s line %d: Badly formatted port number.",
685: filename, linenum);
686: break;
1.29 markus 687:
1.94 markus 688: case sServerKeyBits:
689: intptr = &options->server_key_bits;
1.180 djm 690: parse_int:
1.94 markus 691: arg = strdelim(&cp);
692: if (!arg || *arg == '\0')
693: fatal("%s line %d: missing integer value.",
694: filename, linenum);
695: value = atoi(arg);
1.153 dtucker 696: if (*activep && *intptr == -1)
1.94 markus 697: *intptr = value;
698: break;
1.25 markus 699:
1.94 markus 700: case sLoginGraceTime:
701: intptr = &options->login_grace_time;
1.180 djm 702: parse_time:
1.94 markus 703: arg = strdelim(&cp);
704: if (!arg || *arg == '\0')
705: fatal("%s line %d: missing time value.",
706: filename, linenum);
707: if ((value = convtime(arg)) == -1)
708: fatal("%s line %d: invalid time value.",
709: filename, linenum);
710: if (*intptr == -1)
711: *intptr = value;
712: break;
713:
714: case sKeyRegenerationTime:
715: intptr = &options->key_regeneration_time;
716: goto parse_time;
717:
718: case sListenAddress:
719: arg = strdelim(&cp);
1.139 djm 720: if (arg == NULL || *arg == '\0')
721: fatal("%s line %d: missing address",
1.94 markus 722: filename, linenum);
1.144 dtucker 723: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
724: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
725: && strchr(p+1, ':') != NULL) {
726: add_listen_addr(options, arg, 0);
727: break;
728: }
1.139 djm 729: p = hpdelim(&arg);
730: if (p == NULL)
731: fatal("%s line %d: bad address:port usage",
732: filename, linenum);
733: p = cleanhostname(p);
734: if (arg == NULL)
735: port = 0;
1.194 djm 736: else if ((port = a2port(arg)) <= 0)
1.139 djm 737: fatal("%s line %d: bad port number", filename, linenum);
738:
739: add_listen_addr(options, p, port);
1.25 markus 740:
1.138 djm 741: break;
742:
743: case sAddressFamily:
744: arg = strdelim(&cp);
1.141 markus 745: if (!arg || *arg == '\0')
746: fatal("%s line %d: missing address family.",
747: filename, linenum);
1.138 djm 748: intptr = &options->address_family;
749: if (options->listen_addrs != NULL)
750: fatal("%s line %d: address family must be specified before "
751: "ListenAddress.", filename, linenum);
752: if (strcasecmp(arg, "inet") == 0)
753: value = AF_INET;
754: else if (strcasecmp(arg, "inet6") == 0)
755: value = AF_INET6;
756: else if (strcasecmp(arg, "any") == 0)
757: value = AF_UNSPEC;
758: else
759: fatal("%s line %d: unsupported address family \"%s\".",
760: filename, linenum, arg);
761: if (*intptr == -1)
762: *intptr = value;
1.94 markus 763: break;
764:
765: case sHostKeyFile:
766: intptr = &options->num_host_key_files;
767: if (*intptr >= MAX_HOSTKEYS)
768: fatal("%s line %d: too many host keys specified (max %d).",
769: filename, linenum, MAX_HOSTKEYS);
770: charptr = &options->host_key_files[*intptr];
1.180 djm 771: parse_filename:
1.94 markus 772: arg = strdelim(&cp);
773: if (!arg || *arg == '\0')
774: fatal("%s line %d: missing file name.",
775: filename, linenum);
1.153 dtucker 776: if (*activep && *charptr == NULL) {
1.202 djm 777: *charptr = derelativise_path(arg);
1.94 markus 778: /* increase optional counter */
779: if (intptr != NULL)
780: *intptr = *intptr + 1;
781: }
782: break;
1.76 stevesk 783:
1.203 djm 784: case sHostCertificate:
785: intptr = &options->num_host_cert_files;
786: if (*intptr >= MAX_HOSTKEYS)
787: fatal("%s line %d: too many host certificates "
788: "specified (max %d).", filename, linenum,
789: MAX_HOSTCERTS);
790: charptr = &options->host_cert_files[*intptr];
791: goto parse_filename;
792: break;
793:
1.94 markus 794: case sPidFile:
795: charptr = &options->pid_file;
796: goto parse_filename;
1.25 markus 797:
1.94 markus 798: case sPermitRootLogin:
799: intptr = &options->permit_root_login;
800: arg = strdelim(&cp);
801: if (!arg || *arg == '\0')
802: fatal("%s line %d: missing yes/"
803: "without-password/forced-commands-only/no "
804: "argument.", filename, linenum);
805: value = 0; /* silence compiler */
806: if (strcmp(arg, "without-password") == 0)
807: value = PERMIT_NO_PASSWD;
808: else if (strcmp(arg, "forced-commands-only") == 0)
809: value = PERMIT_FORCED_ONLY;
810: else if (strcmp(arg, "yes") == 0)
811: value = PERMIT_YES;
812: else if (strcmp(arg, "no") == 0)
813: value = PERMIT_NO;
814: else
815: fatal("%s line %d: Bad yes/"
816: "without-password/forced-commands-only/no "
817: "argument: %s", filename, linenum, arg);
1.175 dtucker 818: if (*activep && *intptr == -1)
1.94 markus 819: *intptr = value;
820: break;
1.36 markus 821:
1.94 markus 822: case sIgnoreRhosts:
823: intptr = &options->ignore_rhosts;
1.180 djm 824: parse_flag:
1.94 markus 825: arg = strdelim(&cp);
826: if (!arg || *arg == '\0')
827: fatal("%s line %d: missing yes/no argument.",
828: filename, linenum);
829: value = 0; /* silence compiler */
830: if (strcmp(arg, "yes") == 0)
831: value = 1;
832: else if (strcmp(arg, "no") == 0)
833: value = 0;
834: else
835: fatal("%s line %d: Bad yes/no argument: %s",
836: filename, linenum, arg);
1.153 dtucker 837: if (*activep && *intptr == -1)
1.94 markus 838: *intptr = value;
839: break;
840:
841: case sIgnoreUserKnownHosts:
842: intptr = &options->ignore_user_known_hosts;
843: goto parse_flag;
844:
845: case sRhostsRSAAuthentication:
846: intptr = &options->rhosts_rsa_authentication;
847: goto parse_flag;
848:
849: case sHostbasedAuthentication:
850: intptr = &options->hostbased_authentication;
851: goto parse_flag;
852:
853: case sHostbasedUsesNameFromPacketOnly:
854: intptr = &options->hostbased_uses_name_from_packet_only;
855: goto parse_flag;
856:
857: case sRSAAuthentication:
858: intptr = &options->rsa_authentication;
859: goto parse_flag;
860:
861: case sPubkeyAuthentication:
862: intptr = &options->pubkey_authentication;
863: goto parse_flag;
1.119 jakob 864:
1.94 markus 865: case sKerberosAuthentication:
866: intptr = &options->kerberos_authentication;
867: goto parse_flag;
868:
869: case sKerberosOrLocalPasswd:
870: intptr = &options->kerberos_or_local_passwd;
871: goto parse_flag;
872:
873: case sKerberosTicketCleanup:
874: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 875: goto parse_flag;
876:
877: case sKerberosGetAFSToken:
878: intptr = &options->kerberos_get_afs_token;
1.125 markus 879: goto parse_flag;
880:
881: case sGssAuthentication:
882: intptr = &options->gss_authentication;
883: goto parse_flag;
884:
885: case sGssCleanupCreds:
886: intptr = &options->gss_cleanup_creds;
1.94 markus 887: goto parse_flag;
888:
889: case sPasswordAuthentication:
890: intptr = &options->password_authentication;
891: goto parse_flag;
892:
1.190 djm 893: case sZeroKnowledgePasswordAuthentication:
894: intptr = &options->zero_knowledge_password_authentication;
895: goto parse_flag;
896:
1.94 markus 897: case sKbdInteractiveAuthentication:
898: intptr = &options->kbd_interactive_authentication;
899: goto parse_flag;
900:
901: case sChallengeResponseAuthentication:
902: intptr = &options->challenge_response_authentication;
903: goto parse_flag;
904:
905: case sPrintMotd:
906: intptr = &options->print_motd;
907: goto parse_flag;
908:
909: case sPrintLastLog:
910: intptr = &options->print_lastlog;
911: goto parse_flag;
912:
913: case sX11Forwarding:
914: intptr = &options->x11_forwarding;
915: goto parse_flag;
916:
917: case sX11DisplayOffset:
918: intptr = &options->x11_display_offset;
919: goto parse_int;
1.99 stevesk 920:
921: case sX11UseLocalhost:
922: intptr = &options->x11_use_localhost;
923: goto parse_flag;
1.94 markus 924:
925: case sXAuthLocation:
926: charptr = &options->xauth_location;
927: goto parse_filename;
928:
929: case sStrictModes:
930: intptr = &options->strict_modes;
931: goto parse_flag;
932:
1.129 markus 933: case sTCPKeepAlive:
934: intptr = &options->tcp_keep_alive;
1.94 markus 935: goto parse_flag;
936:
937: case sEmptyPasswd:
938: intptr = &options->permit_empty_passwd;
1.113 markus 939: goto parse_flag;
940:
941: case sPermitUserEnvironment:
942: intptr = &options->permit_user_env;
1.94 markus 943: goto parse_flag;
944:
945: case sUseLogin:
946: intptr = &options->use_login;
1.111 markus 947: goto parse_flag;
948:
949: case sCompression:
950: intptr = &options->compression;
1.143 markus 951: arg = strdelim(&cp);
952: if (!arg || *arg == '\0')
953: fatal("%s line %d: missing yes/no/delayed "
954: "argument.", filename, linenum);
955: value = 0; /* silence compiler */
956: if (strcmp(arg, "delayed") == 0)
957: value = COMP_DELAYED;
958: else if (strcmp(arg, "yes") == 0)
959: value = COMP_ZLIB;
960: else if (strcmp(arg, "no") == 0)
961: value = COMP_NONE;
962: else
963: fatal("%s line %d: Bad yes/no/delayed "
964: "argument: %s", filename, linenum, arg);
965: if (*intptr == -1)
966: *intptr = value;
967: break;
1.94 markus 968:
969: case sGatewayPorts:
970: intptr = &options->gateway_ports;
1.139 djm 971: arg = strdelim(&cp);
972: if (!arg || *arg == '\0')
973: fatal("%s line %d: missing yes/no/clientspecified "
974: "argument.", filename, linenum);
975: value = 0; /* silence compiler */
976: if (strcmp(arg, "clientspecified") == 0)
977: value = 2;
978: else if (strcmp(arg, "yes") == 0)
979: value = 1;
980: else if (strcmp(arg, "no") == 0)
981: value = 0;
982: else
983: fatal("%s line %d: Bad yes/no/clientspecified "
984: "argument: %s", filename, linenum, arg);
1.169 dtucker 985: if (*activep && *intptr == -1)
1.139 djm 986: *intptr = value;
987: break;
1.25 markus 988:
1.122 markus 989: case sUseDNS:
990: intptr = &options->use_dns;
1.94 markus 991: goto parse_flag;
1.53 markus 992:
1.94 markus 993: case sLogFacility:
1.174 dtucker 994: log_facility_ptr = &options->log_facility;
1.94 markus 995: arg = strdelim(&cp);
996: value = log_facility_number(arg);
1.101 markus 997: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 998: fatal("%.200s line %d: unsupported log facility '%s'",
999: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1000: if (*log_facility_ptr == -1)
1001: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1002: break;
1.25 markus 1003:
1.94 markus 1004: case sLogLevel:
1.174 dtucker 1005: log_level_ptr = &options->log_level;
1.94 markus 1006: arg = strdelim(&cp);
1007: value = log_level_number(arg);
1.101 markus 1008: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1009: fatal("%.200s line %d: unsupported log level '%s'",
1010: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1011: if (*log_level_ptr == -1)
1012: *log_level_ptr = (LogLevel) value;
1.94 markus 1013: break;
1014:
1015: case sAllowTcpForwarding:
1016: intptr = &options->allow_tcp_forwarding;
1017: goto parse_flag;
1.102 provos 1018:
1.178 pyr 1019: case sAllowAgentForwarding:
1020: intptr = &options->allow_agent_forwarding;
1021: goto parse_flag;
1022:
1.102 provos 1023: case sUsePrivilegeSeparation:
1024: intptr = &use_privsep;
1025: goto parse_flag;
1.94 markus 1026:
1027: case sAllowUsers:
1028: while ((arg = strdelim(&cp)) && *arg != '\0') {
1029: if (options->num_allow_users >= MAX_ALLOW_USERS)
1030: fatal("%s line %d: too many allow users.",
1031: filename, linenum);
1.112 deraadt 1032: options->allow_users[options->num_allow_users++] =
1033: xstrdup(arg);
1.94 markus 1034: }
1035: break;
1.25 markus 1036:
1.94 markus 1037: case sDenyUsers:
1038: while ((arg = strdelim(&cp)) && *arg != '\0') {
1039: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1040: fatal("%s line %d: too many deny users.",
1.94 markus 1041: filename, linenum);
1.112 deraadt 1042: options->deny_users[options->num_deny_users++] =
1043: xstrdup(arg);
1.94 markus 1044: }
1045: break;
1.25 markus 1046:
1.94 markus 1047: case sAllowGroups:
1048: while ((arg = strdelim(&cp)) && *arg != '\0') {
1049: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1050: fatal("%s line %d: too many allow groups.",
1051: filename, linenum);
1.112 deraadt 1052: options->allow_groups[options->num_allow_groups++] =
1053: xstrdup(arg);
1.94 markus 1054: }
1055: break;
1.33 markus 1056:
1.94 markus 1057: case sDenyGroups:
1058: while ((arg = strdelim(&cp)) && *arg != '\0') {
1059: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1060: fatal("%s line %d: too many deny groups.",
1061: filename, linenum);
1062: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1063: }
1064: break;
1.66 markus 1065:
1.94 markus 1066: case sCiphers:
1067: arg = strdelim(&cp);
1068: if (!arg || *arg == '\0')
1069: fatal("%s line %d: Missing argument.", filename, linenum);
1070: if (!ciphers_valid(arg))
1071: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1072: filename, linenum, arg ? arg : "<NONE>");
1073: if (options->ciphers == NULL)
1074: options->ciphers = xstrdup(arg);
1075: break;
1.33 markus 1076:
1.94 markus 1077: case sMacs:
1078: arg = strdelim(&cp);
1079: if (!arg || *arg == '\0')
1080: fatal("%s line %d: Missing argument.", filename, linenum);
1081: if (!mac_valid(arg))
1082: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1083: filename, linenum, arg ? arg : "<NONE>");
1084: if (options->macs == NULL)
1085: options->macs = xstrdup(arg);
1086: break;
1.43 jakob 1087:
1.94 markus 1088: case sProtocol:
1089: intptr = &options->protocol;
1090: arg = strdelim(&cp);
1091: if (!arg || *arg == '\0')
1092: fatal("%s line %d: Missing argument.", filename, linenum);
1093: value = proto_spec(arg);
1094: if (value == SSH_PROTO_UNKNOWN)
1095: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1096: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1097: if (*intptr == SSH_PROTO_UNKNOWN)
1098: *intptr = value;
1099: break;
1100:
1101: case sSubsystem:
1102: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1103: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1104: filename, linenum);
1.94 markus 1105: }
1106: arg = strdelim(&cp);
1107: if (!arg || *arg == '\0')
1108: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1109: filename, linenum);
1.153 dtucker 1110: if (!*activep) {
1111: arg = strdelim(&cp);
1112: break;
1113: }
1.94 markus 1114: for (i = 0; i < options->num_subsystems; i++)
1115: if (strcmp(arg, options->subsystem_name[i]) == 0)
1116: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1117: filename, linenum, arg);
1.94 markus 1118: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1119: arg = strdelim(&cp);
1120: if (!arg || *arg == '\0')
1121: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1122: filename, linenum);
1.94 markus 1123: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1124:
1125: /* Collect arguments (separate to executable) */
1126: p = xstrdup(arg);
1127: len = strlen(p) + 1;
1128: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1129: len += 1 + strlen(arg);
1130: p = xrealloc(p, 1, len);
1131: strlcat(p, " ", len);
1132: strlcat(p, arg, len);
1133: }
1134: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1135: options->num_subsystems++;
1136: break;
1.46 markus 1137:
1.94 markus 1138: case sMaxStartups:
1139: arg = strdelim(&cp);
1140: if (!arg || *arg == '\0')
1141: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1142: filename, linenum);
1.94 markus 1143: if ((n = sscanf(arg, "%d:%d:%d",
1144: &options->max_startups_begin,
1145: &options->max_startups_rate,
1146: &options->max_startups)) == 3) {
1147: if (options->max_startups_begin >
1148: options->max_startups ||
1149: options->max_startups_rate > 100 ||
1150: options->max_startups_rate < 1)
1.50 markus 1151: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1152: filename, linenum);
1.94 markus 1153: } else if (n != 1)
1154: fatal("%s line %d: Illegal MaxStartups spec.",
1155: filename, linenum);
1156: else
1157: options->max_startups = options->max_startups_begin;
1158: break;
1.133 dtucker 1159:
1160: case sMaxAuthTries:
1161: intptr = &options->max_authtries;
1162: goto parse_int;
1.94 markus 1163:
1.180 djm 1164: case sMaxSessions:
1165: intptr = &options->max_sessions;
1166: goto parse_int;
1167:
1.94 markus 1168: case sBanner:
1169: charptr = &options->banner;
1170: goto parse_filename;
1.176 djm 1171:
1.94 markus 1172: /*
1173: * These options can contain %X options expanded at
1174: * connect time, so that you can specify paths like:
1175: *
1176: * AuthorizedKeysFile /etc/ssh_keys/%u
1177: */
1178: case sAuthorizedKeysFile:
1179: case sAuthorizedKeysFile2:
1.163 stevesk 1180: charptr = (opcode == sAuthorizedKeysFile) ?
1.94 markus 1181: &options->authorized_keys_file :
1182: &options->authorized_keys_file2;
1.205 ! djm 1183: arg = strdelim(&cp);
! 1184: if (!arg || *arg == '\0')
! 1185: fatal("%s line %d: missing file name.",
! 1186: filename, linenum);
! 1187: if (*activep && *charptr == NULL) {
! 1188: *charptr = derelativise_path(arg);
! 1189: /* increase optional counter */
! 1190: if (intptr != NULL)
! 1191: *intptr = *intptr + 1;
! 1192: }
! 1193: break;
1.94 markus 1194:
1195: case sClientAliveInterval:
1196: intptr = &options->client_alive_interval;
1197: goto parse_time;
1198:
1199: case sClientAliveCountMax:
1200: intptr = &options->client_alive_count_max;
1201: goto parse_int;
1.131 djm 1202:
1203: case sAcceptEnv:
1204: while ((arg = strdelim(&cp)) && *arg != '\0') {
1205: if (strchr(arg, '=') != NULL)
1206: fatal("%s line %d: Invalid environment name.",
1207: filename, linenum);
1208: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1209: fatal("%s line %d: too many allow env.",
1210: filename, linenum);
1.153 dtucker 1211: if (!*activep)
1212: break;
1.131 djm 1213: options->accept_env[options->num_accept_env++] =
1214: xstrdup(arg);
1215: }
1216: break;
1.145 reyk 1217:
1218: case sPermitTunnel:
1219: intptr = &options->permit_tun;
1.146 reyk 1220: arg = strdelim(&cp);
1221: if (!arg || *arg == '\0')
1222: fatal("%s line %d: Missing yes/point-to-point/"
1223: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1224: value = -1;
1225: for (i = 0; tunmode_desc[i].val != -1; i++)
1226: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1227: value = tunmode_desc[i].val;
1228: break;
1229: }
1230: if (value == -1)
1.146 reyk 1231: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1232: "no argument: %s", filename, linenum, arg);
1233: if (*intptr == -1)
1234: *intptr = value;
1235: break;
1.94 markus 1236:
1.153 dtucker 1237: case sMatch:
1238: if (cmdline)
1239: fatal("Match directive not supported as a command-line "
1240: "option");
1241: value = match_cfg_line(&cp, linenum, user, host, address);
1242: if (value < 0)
1243: fatal("%s line %d: Bad Match condition", filename,
1244: linenum);
1245: *activep = value;
1.156 dtucker 1246: break;
1247:
1248: case sPermitOpen:
1249: arg = strdelim(&cp);
1250: if (!arg || *arg == '\0')
1251: fatal("%s line %d: missing PermitOpen specification",
1252: filename, linenum);
1.167 dtucker 1253: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1254: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1255: if (*activep && n == -1) {
1.156 dtucker 1256: channel_clear_adm_permitted_opens();
1.159 dtucker 1257: options->num_permitted_opens = 0;
1258: }
1.156 dtucker 1259: break;
1260: }
1.166 dtucker 1261: if (*activep && n == -1)
1262: channel_clear_adm_permitted_opens();
1.159 dtucker 1263: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1264: p = hpdelim(&arg);
1265: if (p == NULL)
1266: fatal("%s line %d: missing host in PermitOpen",
1267: filename, linenum);
1268: p = cleanhostname(p);
1.194 djm 1269: if (arg == NULL || (port = a2port(arg)) <= 0)
1.159 dtucker 1270: fatal("%s line %d: bad port number in "
1271: "PermitOpen", filename, linenum);
1.166 dtucker 1272: if (*activep && n == -1)
1.159 dtucker 1273: options->num_permitted_opens =
1274: channel_add_adm_permitted_opens(p, port);
1275: }
1.153 dtucker 1276: break;
1277:
1.158 dtucker 1278: case sForceCommand:
1279: if (cp == NULL)
1280: fatal("%.200s line %d: Missing argument.", filename,
1281: linenum);
1282: len = strspn(cp, WHITESPACE);
1283: if (*activep && options->adm_forced_command == NULL)
1284: options->adm_forced_command = xstrdup(cp + len);
1285: return 0;
1286:
1.176 djm 1287: case sChrootDirectory:
1288: charptr = &options->chroot_directory;
1.177 djm 1289:
1290: arg = strdelim(&cp);
1291: if (!arg || *arg == '\0')
1292: fatal("%s line %d: missing file name.",
1293: filename, linenum);
1294: if (*activep && *charptr == NULL)
1295: *charptr = xstrdup(arg);
1296: break;
1.176 djm 1297:
1.204 djm 1298: case sTrustedUserCAKeys:
1299: charptr = &options->trusted_user_ca_keys;
1300: goto parse_filename;
1301:
1302: case sRevokedKeys:
1303: charptr = &options->revoked_keys_file;
1304: goto parse_filename;
1305:
1.94 markus 1306: case sDeprecated:
1.117 itojun 1307: logit("%s line %d: Deprecated option %s",
1.121 jakob 1308: filename, linenum, arg);
1309: while (arg)
1310: arg = strdelim(&cp);
1311: break;
1312:
1313: case sUnsupported:
1314: logit("%s line %d: Unsupported option %s",
1.94 markus 1315: filename, linenum, arg);
1316: while (arg)
1317: arg = strdelim(&cp);
1318: break;
1319:
1320: default:
1321: fatal("%s line %d: Missing handler for opcode %s (%d)",
1322: filename, linenum, arg, opcode);
1323: }
1324: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1325: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1326: filename, linenum, arg);
1327: return 0;
1328: }
1329:
1330: /* Reads the server configuration file. */
1.25 markus 1331:
1.94 markus 1332: void
1.134 djm 1333: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1334: {
1.134 djm 1335: char line[1024], *cp;
1.94 markus 1336: FILE *f;
1.81 stevesk 1337:
1.134 djm 1338: debug2("%s: filename %s", __func__, filename);
1339: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1340: perror(filename);
1341: exit(1);
1342: }
1.134 djm 1343: buffer_clear(conf);
1344: while (fgets(line, sizeof(line), f)) {
1345: /*
1346: * Trim out comments and strip whitespace
1.135 deraadt 1347: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1348: * line numbers later for error messages
1349: */
1350: if ((cp = strchr(line, '#')) != NULL)
1351: memcpy(cp, "\n", 2);
1352: cp = line + strspn(line, " \t\r");
1353:
1354: buffer_append(conf, cp, strlen(cp));
1355: }
1356: buffer_append(conf, "\0", 1);
1357: fclose(f);
1358: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1359: }
1360:
1361: void
1.153 dtucker 1362: parse_server_match_config(ServerOptions *options, const char *user,
1363: const char *host, const char *address)
1364: {
1365: ServerOptions mo;
1366:
1367: initialize_server_options(&mo);
1368: parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
1.168 dtucker 1369: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1370: }
1371:
1.168 dtucker 1372: /* Helper macros */
1373: #define M_CP_INTOPT(n) do {\
1374: if (src->n != -1) \
1375: dst->n = src->n; \
1376: } while (0)
1377: #define M_CP_STROPT(n) do {\
1378: if (src->n != NULL) { \
1379: if (dst->n != NULL) \
1380: xfree(dst->n); \
1381: dst->n = src->n; \
1382: } \
1383: } while(0)
1384:
1385: /*
1386: * Copy any supported values that are set.
1387: *
1.195 jj 1388: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1389: * array values that are not used pre-authentication, because any that we
1390: * do use must be explictly sent in mm_getpwnamallow().
1391: */
1.153 dtucker 1392: void
1.168 dtucker 1393: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1394: {
1.168 dtucker 1395: M_CP_INTOPT(password_authentication);
1396: M_CP_INTOPT(gss_authentication);
1397: M_CP_INTOPT(rsa_authentication);
1398: M_CP_INTOPT(pubkey_authentication);
1399: M_CP_INTOPT(kerberos_authentication);
1400: M_CP_INTOPT(hostbased_authentication);
1401: M_CP_INTOPT(kbd_interactive_authentication);
1.190 djm 1402: M_CP_INTOPT(zero_knowledge_password_authentication);
1.175 dtucker 1403: M_CP_INTOPT(permit_root_login);
1.188 djm 1404: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1405:
1406: M_CP_INTOPT(allow_tcp_forwarding);
1.178 pyr 1407: M_CP_INTOPT(allow_agent_forwarding);
1.168 dtucker 1408: M_CP_INTOPT(gateway_ports);
1409: M_CP_INTOPT(x11_display_offset);
1410: M_CP_INTOPT(x11_forwarding);
1411: M_CP_INTOPT(x11_use_localhost);
1.180 djm 1412: M_CP_INTOPT(max_sessions);
1.184 dtucker 1413: M_CP_INTOPT(max_authtries);
1.168 dtucker 1414:
1415: M_CP_STROPT(banner);
1416: if (preauth)
1417: return;
1418: M_CP_STROPT(adm_forced_command);
1.176 djm 1419: M_CP_STROPT(chroot_directory);
1.204 djm 1420: M_CP_STROPT(trusted_user_ca_keys);
1421: M_CP_STROPT(revoked_keys_file);
1.153 dtucker 1422: }
1.168 dtucker 1423:
1424: #undef M_CP_INTOPT
1425: #undef M_CP_STROPT
1.153 dtucker 1426:
1427: void
1428: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1429: const char *user, const char *host, const char *address)
1.134 djm 1430: {
1.153 dtucker 1431: int active, linenum, bad_options = 0;
1.136 dtucker 1432: char *cp, *obuf, *cbuf;
1.134 djm 1433:
1434: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1435:
1.136 dtucker 1436: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.153 dtucker 1437: active = user ? 0 : 1;
1.137 dtucker 1438: linenum = 1;
1.140 deraadt 1439: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1440: if (process_server_config_line(options, cp, filename,
1.153 dtucker 1441: linenum++, &active, user, host, address) != 0)
1.94 markus 1442: bad_options++;
1.1 deraadt 1443: }
1.136 dtucker 1444: xfree(obuf);
1.78 stevesk 1445: if (bad_options > 0)
1446: fatal("%s: terminating, %d bad configuration options",
1447: filename, bad_options);
1.182 dtucker 1448: }
1449:
1450: static const char *
1451: fmt_intarg(ServerOpCodes code, int val)
1452: {
1453: if (code == sAddressFamily) {
1454: switch (val) {
1455: case AF_INET:
1456: return "inet";
1457: case AF_INET6:
1458: return "inet6";
1459: case AF_UNSPEC:
1460: return "any";
1461: default:
1462: return "UNKNOWN";
1463: }
1464: }
1465: if (code == sPermitRootLogin) {
1466: switch (val) {
1467: case PERMIT_NO_PASSWD:
1.191 jmc 1468: return "without-password";
1.182 dtucker 1469: case PERMIT_FORCED_ONLY:
1470: return "forced-commands-only";
1471: case PERMIT_YES:
1472: return "yes";
1473: }
1474: }
1475: if (code == sProtocol) {
1476: switch (val) {
1477: case SSH_PROTO_1:
1478: return "1";
1479: case SSH_PROTO_2:
1480: return "2";
1481: case (SSH_PROTO_1|SSH_PROTO_2):
1482: return "2,1";
1483: default:
1484: return "UNKNOWN";
1485: }
1486: }
1487: if (code == sGatewayPorts && val == 2)
1488: return "clientspecified";
1489: if (code == sCompression && val == COMP_DELAYED)
1490: return "delayed";
1491: switch (val) {
1492: case -1:
1493: return "unset";
1494: case 0:
1495: return "no";
1496: case 1:
1497: return "yes";
1498: }
1499: return "UNKNOWN";
1500: }
1501:
1502: static const char *
1503: lookup_opcode_name(ServerOpCodes code)
1504: {
1505: u_int i;
1506:
1507: for (i = 0; keywords[i].name != NULL; i++)
1508: if (keywords[i].opcode == code)
1509: return(keywords[i].name);
1510: return "UNKNOWN";
1511: }
1512:
1513: static void
1514: dump_cfg_int(ServerOpCodes code, int val)
1515: {
1516: printf("%s %d\n", lookup_opcode_name(code), val);
1517: }
1518:
1519: static void
1520: dump_cfg_fmtint(ServerOpCodes code, int val)
1521: {
1522: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1523: }
1524:
1525: static void
1526: dump_cfg_string(ServerOpCodes code, const char *val)
1527: {
1528: if (val == NULL)
1529: return;
1530: printf("%s %s\n", lookup_opcode_name(code), val);
1531: }
1532:
1533: static void
1534: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
1535: {
1536: u_int i;
1537:
1538: for (i = 0; i < count; i++)
1539: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
1540: }
1541:
1542: void
1543: dump_config(ServerOptions *o)
1544: {
1545: u_int i;
1546: int ret;
1547: struct addrinfo *ai;
1548: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1549:
1550: /* these are usually at the top of the config */
1551: for (i = 0; i < o->num_ports; i++)
1552: printf("port %d\n", o->ports[i]);
1553: dump_cfg_fmtint(sProtocol, o->protocol);
1554: dump_cfg_fmtint(sAddressFamily, o->address_family);
1555:
1556: /* ListenAddress must be after Port */
1557: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
1558: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1559: sizeof(addr), port, sizeof(port),
1560: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1561: error("getnameinfo failed: %.100s",
1562: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
1563: strerror(errno));
1564: } else {
1565: if (ai->ai_family == AF_INET6)
1566: printf("listenaddress [%s]:%s\n", addr, port);
1567: else
1568: printf("listenaddress %s:%s\n", addr, port);
1569: }
1570: }
1571:
1572: /* integer arguments */
1573: dump_cfg_int(sServerKeyBits, o->server_key_bits);
1574: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
1575: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
1576: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
1577: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 1578: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 1579: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
1580: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1581:
1582: /* formatted integer arguments */
1583: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
1584: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
1585: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
1586: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
1587: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
1588: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
1589: o->hostbased_uses_name_from_packet_only);
1590: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
1591: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 1592: #ifdef KRB5
1.182 dtucker 1593: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
1594: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
1595: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
1596: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 1597: #endif
1598: #ifdef GSSAPI
1.182 dtucker 1599: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
1600: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.190 djm 1601: #endif
1602: #ifdef JPAKE
1603: dump_cfg_fmtint(sZeroKnowledgePasswordAuthentication,
1604: o->zero_knowledge_password_authentication);
1.187 djm 1605: #endif
1.182 dtucker 1606: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
1607: dump_cfg_fmtint(sKbdInteractiveAuthentication,
1608: o->kbd_interactive_authentication);
1609: dump_cfg_fmtint(sChallengeResponseAuthentication,
1610: o->challenge_response_authentication);
1611: dump_cfg_fmtint(sPrintMotd, o->print_motd);
1612: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
1613: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
1614: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1615: dump_cfg_fmtint(sStrictModes, o->strict_modes);
1616: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
1617: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
1618: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
1619: dump_cfg_fmtint(sUseLogin, o->use_login);
1620: dump_cfg_fmtint(sCompression, o->compression);
1621: dump_cfg_fmtint(sGatewayPorts, o->gateway_ports);
1622: dump_cfg_fmtint(sUseDNS, o->use_dns);
1623: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1624: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1625:
1626: /* string arguments */
1627: dump_cfg_string(sPidFile, o->pid_file);
1628: dump_cfg_string(sXAuthLocation, o->xauth_location);
1629: dump_cfg_string(sCiphers, o->ciphers);
1630: dump_cfg_string(sMacs, o->macs);
1631: dump_cfg_string(sBanner, o->banner);
1632: dump_cfg_string(sAuthorizedKeysFile, o->authorized_keys_file);
1633: dump_cfg_string(sAuthorizedKeysFile2, o->authorized_keys_file2);
1634: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 1635: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 1636: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
1637: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.182 dtucker 1638:
1639: /* string arguments requiring a lookup */
1640: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
1641: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
1642:
1643: /* string array arguments */
1644: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1645: o->host_key_files);
1.203 djm 1646: dump_cfg_strarray(sHostKeyFile, o->num_host_cert_files,
1647: o->host_cert_files);
1.182 dtucker 1648: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
1649: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
1650: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
1651: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
1652: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1653:
1654: /* other arguments */
1655: for (i = 0; i < o->num_subsystems; i++)
1656: printf("subsystem %s %s\n", o->subsystem_name[i],
1657: o->subsystem_args[i]);
1658:
1659: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
1660: o->max_startups_rate, o->max_startups);
1661:
1662: for (i = 0; tunmode_desc[i].val != -1; i++)
1663: if (tunmode_desc[i].val == o->permit_tun) {
1664: s = tunmode_desc[i].text;
1665: break;
1666: }
1667: dump_cfg_string(sPermitTunnel, s);
1668:
1669: channel_print_adm_permitted_opens();
1.1 deraadt 1670: }
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