Annotation of src/usr.bin/ssh/servconf.c, Revision 1.202
1.202 ! djm 1: /* $OpenBSD: servconf.c,v 1.201 2010/01/10 03:51:17 dtucker 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;
1.36 markus 61: options->pid_file = NULL;
1.25 markus 62: options->server_key_bits = -1;
63: options->login_grace_time = -1;
64: options->key_regeneration_time = -1;
1.67 markus 65: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 66: options->ignore_rhosts = -1;
67: options->ignore_user_known_hosts = -1;
68: options->print_motd = -1;
1.72 stevesk 69: options->print_lastlog = -1;
1.25 markus 70: options->x11_forwarding = -1;
71: options->x11_display_offset = -1;
1.99 stevesk 72: options->x11_use_localhost = -1;
1.42 markus 73: options->xauth_location = NULL;
1.25 markus 74: options->strict_modes = -1;
1.129 markus 75: options->tcp_keep_alive = -1;
1.101 markus 76: options->log_facility = SYSLOG_FACILITY_NOT_SET;
77: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.25 markus 78: options->rhosts_rsa_authentication = -1;
1.75 markus 79: options->hostbased_authentication = -1;
80: options->hostbased_uses_name_from_packet_only = -1;
1.25 markus 81: options->rsa_authentication = -1;
1.54 markus 82: options->pubkey_authentication = -1;
1.25 markus 83: options->kerberos_authentication = -1;
84: options->kerberos_or_local_passwd = -1;
85: options->kerberos_ticket_cleanup = -1;
1.130 jakob 86: options->kerberos_get_afs_token = -1;
1.125 markus 87: options->gss_authentication=-1;
88: options->gss_cleanup_creds = -1;
1.25 markus 89: options->password_authentication = -1;
1.52 markus 90: options->kbd_interactive_authentication = -1;
1.80 markus 91: options->challenge_response_authentication = -1;
1.25 markus 92: options->permit_empty_passwd = -1;
1.113 markus 93: options->permit_user_env = -1;
1.25 markus 94: options->use_login = -1;
1.111 markus 95: options->compression = -1;
1.53 markus 96: options->allow_tcp_forwarding = -1;
1.178 pyr 97: options->allow_agent_forwarding = -1;
1.25 markus 98: options->num_allow_users = 0;
99: options->num_deny_users = 0;
100: options->num_allow_groups = 0;
101: options->num_deny_groups = 0;
1.33 markus 102: options->ciphers = NULL;
1.66 markus 103: options->macs = NULL;
1.33 markus 104: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 105: options->gateway_ports = -1;
1.43 jakob 106: options->num_subsystems = 0;
1.50 markus 107: options->max_startups_begin = -1;
108: options->max_startups_rate = -1;
1.46 markus 109: options->max_startups = -1;
1.133 dtucker 110: options->max_authtries = -1;
1.180 djm 111: options->max_sessions = -1;
1.57 markus 112: options->banner = NULL;
1.122 markus 113: options->use_dns = -1;
1.77 beck 114: options->client_alive_interval = -1;
115: options->client_alive_count_max = -1;
1.82 markus 116: options->authorized_keys_file = NULL;
117: options->authorized_keys_file2 = NULL;
1.131 djm 118: options->num_accept_env = 0;
1.145 reyk 119: options->permit_tun = -1;
1.159 dtucker 120: options->num_permitted_opens = -1;
1.158 dtucker 121: options->adm_forced_command = NULL;
1.176 djm 122: options->chroot_directory = NULL;
1.190 djm 123: options->zero_knowledge_password_authentication = -1;
1.1 deraadt 124: }
125:
1.34 markus 126: void
1.25 markus 127: fill_default_server_options(ServerOptions *options)
1.1 deraadt 128: {
1.54 markus 129: if (options->protocol == SSH_PROTO_UNKNOWN)
1.196 markus 130: options->protocol = SSH_PROTO_2;
1.54 markus 131: if (options->num_host_key_files == 0) {
132: /* fill default hostkeys for protocols */
133: if (options->protocol & SSH_PROTO_1)
1.97 stevesk 134: options->host_key_files[options->num_host_key_files++] =
135: _PATH_HOST_KEY_FILE;
136: if (options->protocol & SSH_PROTO_2) {
137: options->host_key_files[options->num_host_key_files++] =
138: _PATH_HOST_RSA_KEY_FILE;
139: options->host_key_files[options->num_host_key_files++] =
140: _PATH_HOST_DSA_KEY_FILE;
141: }
1.54 markus 142: }
1.29 markus 143: if (options->num_ports == 0)
144: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
145: if (options->listen_addrs == NULL)
1.76 stevesk 146: add_listen_addr(options, NULL, 0);
1.36 markus 147: if (options->pid_file == NULL)
1.60 markus 148: options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
1.25 markus 149: if (options->server_key_bits == -1)
1.185 djm 150: options->server_key_bits = 1024;
1.25 markus 151: if (options->login_grace_time == -1)
1.115 stevesk 152: options->login_grace_time = 120;
1.25 markus 153: if (options->key_regeneration_time == -1)
154: options->key_regeneration_time = 3600;
1.67 markus 155: if (options->permit_root_login == PERMIT_NOT_SET)
156: options->permit_root_login = PERMIT_YES;
1.25 markus 157: if (options->ignore_rhosts == -1)
1.30 markus 158: options->ignore_rhosts = 1;
1.25 markus 159: if (options->ignore_user_known_hosts == -1)
160: options->ignore_user_known_hosts = 0;
161: if (options->print_motd == -1)
162: options->print_motd = 1;
1.72 stevesk 163: if (options->print_lastlog == -1)
164: options->print_lastlog = 1;
1.25 markus 165: if (options->x11_forwarding == -1)
1.30 markus 166: options->x11_forwarding = 0;
1.25 markus 167: if (options->x11_display_offset == -1)
1.30 markus 168: options->x11_display_offset = 10;
1.99 stevesk 169: if (options->x11_use_localhost == -1)
170: options->x11_use_localhost = 1;
1.42 markus 171: if (options->xauth_location == NULL)
1.83 markus 172: options->xauth_location = _PATH_XAUTH;
1.25 markus 173: if (options->strict_modes == -1)
174: options->strict_modes = 1;
1.129 markus 175: if (options->tcp_keep_alive == -1)
176: options->tcp_keep_alive = 1;
1.101 markus 177: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 178: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 179: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 180: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 181: if (options->rhosts_rsa_authentication == -1)
1.30 markus 182: options->rhosts_rsa_authentication = 0;
1.75 markus 183: if (options->hostbased_authentication == -1)
184: options->hostbased_authentication = 0;
185: if (options->hostbased_uses_name_from_packet_only == -1)
186: options->hostbased_uses_name_from_packet_only = 0;
1.25 markus 187: if (options->rsa_authentication == -1)
188: options->rsa_authentication = 1;
1.54 markus 189: if (options->pubkey_authentication == -1)
190: options->pubkey_authentication = 1;
1.25 markus 191: if (options->kerberos_authentication == -1)
1.107 markus 192: options->kerberos_authentication = 0;
1.25 markus 193: if (options->kerberos_or_local_passwd == -1)
194: options->kerberos_or_local_passwd = 1;
195: if (options->kerberos_ticket_cleanup == -1)
196: options->kerberos_ticket_cleanup = 1;
1.130 jakob 197: if (options->kerberos_get_afs_token == -1)
198: options->kerberos_get_afs_token = 0;
1.125 markus 199: if (options->gss_authentication == -1)
200: options->gss_authentication = 0;
201: if (options->gss_cleanup_creds == -1)
202: options->gss_cleanup_creds = 1;
1.25 markus 203: if (options->password_authentication == -1)
204: options->password_authentication = 1;
1.52 markus 205: if (options->kbd_interactive_authentication == -1)
206: options->kbd_interactive_authentication = 0;
1.80 markus 207: if (options->challenge_response_authentication == -1)
208: options->challenge_response_authentication = 1;
1.25 markus 209: if (options->permit_empty_passwd == -1)
1.30 markus 210: options->permit_empty_passwd = 0;
1.113 markus 211: if (options->permit_user_env == -1)
212: options->permit_user_env = 0;
1.25 markus 213: if (options->use_login == -1)
214: options->use_login = 0;
1.111 markus 215: if (options->compression == -1)
1.143 markus 216: options->compression = COMP_DELAYED;
1.53 markus 217: if (options->allow_tcp_forwarding == -1)
218: options->allow_tcp_forwarding = 1;
1.178 pyr 219: if (options->allow_agent_forwarding == -1)
220: options->allow_agent_forwarding = 1;
1.38 markus 221: if (options->gateway_ports == -1)
222: options->gateway_ports = 0;
1.46 markus 223: if (options->max_startups == -1)
224: options->max_startups = 10;
1.50 markus 225: if (options->max_startups_rate == -1)
226: options->max_startups_rate = 100; /* 100% */
227: if (options->max_startups_begin == -1)
228: options->max_startups_begin = options->max_startups;
1.133 dtucker 229: if (options->max_authtries == -1)
230: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 231: if (options->max_sessions == -1)
232: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 233: if (options->use_dns == -1)
234: options->use_dns = 1;
1.77 beck 235: if (options->client_alive_interval == -1)
1.95 deraadt 236: options->client_alive_interval = 0;
1.77 beck 237: if (options->client_alive_count_max == -1)
238: options->client_alive_count_max = 3;
1.90 markus 239: if (options->authorized_keys_file2 == NULL) {
240: /* authorized_keys_file2 falls back to authorized_keys_file */
241: if (options->authorized_keys_file != NULL)
242: options->authorized_keys_file2 = options->authorized_keys_file;
243: else
244: options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2;
245: }
246: if (options->authorized_keys_file == NULL)
247: options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
1.145 reyk 248: if (options->permit_tun == -1)
1.146 reyk 249: options->permit_tun = SSH_TUNMODE_NO;
1.190 djm 250: if (options->zero_knowledge_password_authentication == -1)
251: options->zero_knowledge_password_authentication = 0;
1.102 provos 252:
1.110 markus 253: /* Turn privilege separation on by default */
1.102 provos 254: if (use_privsep == -1)
1.110 markus 255: use_privsep = 1;
1.1 deraadt 256: }
257:
258: /* Keyword tokens. */
1.25 markus 259: typedef enum {
260: sBadOption, /* == unknown option */
261: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
262: sPermitRootLogin, sLogFacility, sLogLevel,
1.124 markus 263: sRhostsRSAAuthentication, sRSAAuthentication,
1.25 markus 264: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.130 jakob 265: sKerberosGetAFSToken,
1.123 markus 266: sKerberosTgtPassing, sChallengeResponseAuthentication,
1.138 djm 267: sPasswordAuthentication, sKbdInteractiveAuthentication,
268: sListenAddress, sAddressFamily,
1.72 stevesk 269: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 270: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.129 markus 271: sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.113 markus 272: sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
1.53 markus 273: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 274: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.133 dtucker 275: sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem,
1.180 djm 276: sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 277: sBanner, sUseDNS, sHostbasedAuthentication,
1.95 deraadt 278: sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
1.89 jakob 279: sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
1.145 reyk 280: sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
1.176 djm 281: sMatch, sPermitOpen, sForceCommand, sChrootDirectory,
1.200 dtucker 282: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.190 djm 283: sZeroKnowledgePasswordAuthentication,
1.121 jakob 284: sDeprecated, sUnsupported
1.1 deraadt 285: } ServerOpCodes;
286:
1.153 dtucker 287: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
288: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
289: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
290:
1.1 deraadt 291: /* Textual representation of the tokens. */
1.25 markus 292: static struct {
293: const char *name;
294: ServerOpCodes opcode;
1.153 dtucker 295: u_int flags;
1.25 markus 296: } keywords[] = {
1.153 dtucker 297: { "port", sPort, SSHCFG_GLOBAL },
298: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
299: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
300: { "pidfile", sPidFile, SSHCFG_GLOBAL },
301: { "serverkeybits", sServerKeyBits, SSHCFG_GLOBAL },
302: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
303: { "keyregenerationinterval", sKeyRegenerationTime, SSHCFG_GLOBAL },
1.175 dtucker 304: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 305: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
306: { "loglevel", sLogLevel, SSHCFG_GLOBAL },
307: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.168 dtucker 308: { "rhostsrsaauthentication", sRhostsRSAAuthentication, SSHCFG_ALL },
309: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.153 dtucker 310: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_GLOBAL },
1.168 dtucker 311: { "rsaauthentication", sRSAAuthentication, SSHCFG_ALL },
312: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.153 dtucker 313: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 314: #ifdef KRB5
1.168 dtucker 315: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 316: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
317: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
318: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 319: #else
1.168 dtucker 320: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 321: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
322: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
323: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 324: #endif
1.153 dtucker 325: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
326: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 327: #ifdef GSSAPI
1.168 dtucker 328: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 329: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.125 markus 330: #else
1.168 dtucker 331: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 332: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 333: #endif
1.168 dtucker 334: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
335: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 336: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 337: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
1.190 djm 338: #ifdef JPAKE
339: { "zeroknowledgepasswordauthentication", sZeroKnowledgePasswordAuthentication, SSHCFG_ALL },
340: #else
341: { "zeroknowledgepasswordauthentication", sUnsupported, SSHCFG_ALL },
342: #endif
1.153 dtucker 343: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
344: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
345: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
346: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
347: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
348: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
349: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 350: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
351: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
352: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 353: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
354: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 355: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 356: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
357: { "uselogin", sUseLogin, SSHCFG_GLOBAL },
358: { "compression", sCompression, SSHCFG_GLOBAL },
359: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
360: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
361: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 362: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.153 dtucker 363: { "allowusers", sAllowUsers, SSHCFG_GLOBAL },
364: { "denyusers", sDenyUsers, SSHCFG_GLOBAL },
365: { "allowgroups", sAllowGroups, SSHCFG_GLOBAL },
366: { "denygroups", sDenyGroups, SSHCFG_GLOBAL },
367: { "ciphers", sCiphers, SSHCFG_GLOBAL },
368: { "macs", sMacs, SSHCFG_GLOBAL },
369: { "protocol", sProtocol, SSHCFG_GLOBAL },
370: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
371: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
372: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 373: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 374: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 375: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 376: { "usedns", sUseDNS, SSHCFG_GLOBAL },
377: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
378: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
379: { "clientaliveinterval", sClientAliveInterval, SSHCFG_GLOBAL },
380: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_GLOBAL },
381: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_GLOBAL },
382: { "authorizedkeysfile2", sAuthorizedKeysFile2, SSHCFG_GLOBAL },
383: { "useprivilegeseparation", sUsePrivilegeSeparation, SSHCFG_GLOBAL},
384: { "acceptenv", sAcceptEnv, SSHCFG_GLOBAL },
385: { "permittunnel", sPermitTunnel, SSHCFG_GLOBAL },
386: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 387: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.158 dtucker 388: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 389: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.153 dtucker 390: { NULL, sBadOption, 0 }
1.1 deraadt 391: };
392:
1.182 dtucker 393: static struct {
394: int val;
395: char *text;
396: } tunmode_desc[] = {
397: { SSH_TUNMODE_NO, "no" },
398: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
399: { SSH_TUNMODE_ETHERNET, "ethernet" },
400: { SSH_TUNMODE_YES, "yes" },
401: { -1, NULL }
402: };
403:
1.27 markus 404: /*
1.73 stevesk 405: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 406: */
1.1 deraadt 407:
1.34 markus 408: static ServerOpCodes
1.25 markus 409: parse_token(const char *cp, const char *filename,
1.153 dtucker 410: int linenum, u_int *flags)
1.1 deraadt 411: {
1.55 markus 412: u_int i;
1.1 deraadt 413:
1.25 markus 414: for (i = 0; keywords[i].name; i++)
1.153 dtucker 415: if (strcasecmp(cp, keywords[i].name) == 0) {
416: *flags = keywords[i].flags;
1.25 markus 417: return keywords[i].opcode;
1.153 dtucker 418: }
1.25 markus 419:
1.78 stevesk 420: error("%s: line %d: Bad configuration option: %s",
421: filename, linenum, cp);
1.25 markus 422: return sBadOption;
1.1 deraadt 423: }
424:
1.202 ! djm 425: char *
! 426: derelativise_path(const char *path)
! 427: {
! 428: char *expanded, *ret, *cwd;
! 429:
! 430: expanded = tilde_expand_filename(path, getuid());
! 431: if (*expanded == '/')
! 432: return expanded;
! 433: if ((cwd = getcwd(NULL, 0)) == NULL)
! 434: fatal("%s: getcwd: %s", __func__, strerror(errno));
! 435: xasprintf(&ret, "%s/%s", cwd, expanded);
! 436: xfree(cwd);
! 437: xfree(expanded);
! 438: return ret;
! 439: }
! 440:
1.84 itojun 441: static void
1.194 djm 442: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 443: {
1.142 djm 444: u_int i;
1.74 stevesk 445:
446: if (options->num_ports == 0)
447: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 448: if (options->address_family == -1)
449: options->address_family = AF_UNSPEC;
1.76 stevesk 450: if (port == 0)
1.74 stevesk 451: for (i = 0; i < options->num_ports; i++)
452: add_one_listen_addr(options, addr, options->ports[i]);
453: else
1.76 stevesk 454: add_one_listen_addr(options, addr, port);
1.74 stevesk 455: }
456:
1.84 itojun 457: static void
1.194 djm 458: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 459: {
460: struct addrinfo hints, *ai, *aitop;
461: char strport[NI_MAXSERV];
462: int gaierr;
463:
1.74 stevesk 464: memset(&hints, 0, sizeof(hints));
1.138 djm 465: hints.ai_family = options->address_family;
1.74 stevesk 466: hints.ai_socktype = SOCK_STREAM;
467: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 468: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 469: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
470: fatal("bad addr or host: %s (%s)",
471: addr ? addr : "<NULL>",
1.173 dtucker 472: ssh_gai_strerror(gaierr));
1.74 stevesk 473: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
474: ;
475: ai->ai_next = options->listen_addrs;
476: options->listen_addrs = aitop;
1.29 markus 477: }
478:
1.153 dtucker 479: /*
480: * The strategy for the Match blocks is that the config file is parsed twice.
481: *
482: * The first time is at startup. activep is initialized to 1 and the
483: * directives in the global context are processed and acted on. Hitting a
484: * Match directive unsets activep and the directives inside the block are
485: * checked for syntax only.
486: *
487: * The second time is after a connection has been established but before
488: * authentication. activep is initialized to 2 and global config directives
489: * are ignored since they have already been processed. If the criteria in a
490: * Match block is met, activep is set and the subsequent directives
491: * processed and actioned until EOF or another Match block unsets it. Any
492: * options set are copied into the main server config.
493: *
494: * Potential additions/improvements:
495: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
496: *
497: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
498: * Match Address 192.168.0.*
499: * Tag trusted
500: * Match Group wheel
501: * Tag trusted
502: * Match Tag trusted
503: * AllowTcpForwarding yes
504: * GatewayPorts clientspecified
505: * [...]
506: *
507: * - Add a PermittedChannelRequests directive
508: * Match Group shell
509: * PermittedChannelRequests session,forwarded-tcpip
510: */
511:
512: static int
1.165 dtucker 513: match_cfg_line_group(const char *grps, int line, const char *user)
514: {
515: int result = 0;
516: struct passwd *pw;
517:
518: if (user == NULL)
519: goto out;
520:
521: if ((pw = getpwnam(user)) == NULL) {
522: debug("Can't match group at line %d because user %.100s does "
523: "not exist", line, user);
524: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
525: debug("Can't Match group because user %.100s not in any group "
526: "at line %d", user, line);
1.186 djm 527: } else if (ga_match_pattern_list(grps) != 1) {
528: debug("user %.100s does not match group list %.100s at line %d",
529: user, grps, line);
1.165 dtucker 530: } else {
1.186 djm 531: debug("user %.100s matched group list %.100s at line %d", user,
532: grps, line);
1.165 dtucker 533: result = 1;
534: }
535: out:
536: ga_free();
537: return result;
538: }
539:
540: static int
1.153 dtucker 541: match_cfg_line(char **condition, int line, const char *user, const char *host,
542: const char *address)
543: {
544: int result = 1;
545: char *arg, *attrib, *cp = *condition;
546: size_t len;
547:
548: if (user == NULL)
549: debug3("checking syntax for 'Match %s'", cp);
550: else
551: debug3("checking match for '%s' user %s host %s addr %s", cp,
552: user ? user : "(null)", host ? host : "(null)",
553: address ? address : "(null)");
554:
555: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
556: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
557: error("Missing Match criteria for %s", attrib);
558: return -1;
559: }
560: len = strlen(arg);
561: if (strcasecmp(attrib, "user") == 0) {
562: if (!user) {
563: result = 0;
564: continue;
565: }
566: if (match_pattern_list(user, arg, len, 0) != 1)
567: result = 0;
568: else
569: debug("user %.100s matched 'User %.100s' at "
570: "line %d", user, arg, line);
1.165 dtucker 571: } else if (strcasecmp(attrib, "group") == 0) {
572: switch (match_cfg_line_group(arg, line, user)) {
573: case -1:
574: return -1;
575: case 0:
576: result = 0;
577: }
1.153 dtucker 578: } else if (strcasecmp(attrib, "host") == 0) {
579: if (!host) {
580: result = 0;
581: continue;
582: }
583: if (match_hostname(host, arg, len) != 1)
584: result = 0;
585: else
586: debug("connection from %.100s matched 'Host "
587: "%.100s' at line %d", host, arg, line);
588: } else if (strcasecmp(attrib, "address") == 0) {
1.181 djm 589: switch (addr_match_list(address, arg)) {
590: case 1:
591: debug("connection from %.100s matched 'Address "
592: "%.100s' at line %d", address, arg, line);
593: break;
594: case 0:
1.183 djm 595: case -1:
1.153 dtucker 596: result = 0;
1.181 djm 597: break;
1.183 djm 598: case -2:
1.181 djm 599: return -1;
1.153 dtucker 600: }
601: } else {
602: error("Unsupported Match attribute %s", attrib);
603: return -1;
604: }
605: }
606: if (user != NULL)
607: debug3("match %sfound", result ? "" : "not ");
608: *condition = cp;
609: return result;
610: }
611:
1.158 dtucker 612: #define WHITESPACE " \t\r\n"
613:
1.94 markus 614: int
615: process_server_config_line(ServerOptions *options, char *line,
1.153 dtucker 616: const char *filename, int linenum, int *activep, const char *user,
617: const char *host, const char *address)
1.1 deraadt 618: {
1.74 stevesk 619: char *cp, **charptr, *arg, *p;
1.153 dtucker 620: int cmdline = 0, *intptr, value, n;
1.174 dtucker 621: SyslogFacility *log_facility_ptr;
622: LogLevel *log_level_ptr;
1.25 markus 623: ServerOpCodes opcode;
1.194 djm 624: int port;
1.153 dtucker 625: u_int i, flags = 0;
1.151 djm 626: size_t len;
1.25 markus 627:
1.94 markus 628: cp = line;
1.148 dtucker 629: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 630: return 0;
1.94 markus 631: /* Ignore leading whitespace */
632: if (*arg == '\0')
633: arg = strdelim(&cp);
634: if (!arg || !*arg || *arg == '#')
635: return 0;
636: intptr = NULL;
637: charptr = NULL;
1.153 dtucker 638: opcode = parse_token(arg, filename, linenum, &flags);
639:
640: if (activep == NULL) { /* We are processing a command line directive */
641: cmdline = 1;
642: activep = &cmdline;
643: }
644: if (*activep && opcode != sMatch)
645: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
646: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
647: if (user == NULL) {
648: fatal("%s line %d: Directive '%s' is not allowed "
649: "within a Match block", filename, linenum, arg);
650: } else { /* this is a directive we have already processed */
651: while (arg)
652: arg = strdelim(&cp);
653: return 0;
654: }
655: }
656:
1.94 markus 657: switch (opcode) {
658: case sBadOption:
659: return -1;
660: case sPort:
661: /* ignore ports from configfile if cmdline specifies ports */
662: if (options->ports_from_cmdline)
663: return 0;
664: if (options->listen_addrs != NULL)
665: fatal("%s line %d: ports must be specified before "
1.98 stevesk 666: "ListenAddress.", filename, linenum);
1.94 markus 667: if (options->num_ports >= MAX_PORTS)
668: fatal("%s line %d: too many ports.",
669: filename, linenum);
1.48 provos 670: arg = strdelim(&cp);
1.94 markus 671: if (!arg || *arg == '\0')
672: fatal("%s line %d: missing port number.",
673: filename, linenum);
674: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 675: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 676: fatal("%s line %d: Badly formatted port number.",
677: filename, linenum);
678: break;
1.29 markus 679:
1.94 markus 680: case sServerKeyBits:
681: intptr = &options->server_key_bits;
1.180 djm 682: parse_int:
1.94 markus 683: arg = strdelim(&cp);
684: if (!arg || *arg == '\0')
685: fatal("%s line %d: missing integer value.",
686: filename, linenum);
687: value = atoi(arg);
1.153 dtucker 688: if (*activep && *intptr == -1)
1.94 markus 689: *intptr = value;
690: break;
1.25 markus 691:
1.94 markus 692: case sLoginGraceTime:
693: intptr = &options->login_grace_time;
1.180 djm 694: parse_time:
1.94 markus 695: arg = strdelim(&cp);
696: if (!arg || *arg == '\0')
697: fatal("%s line %d: missing time value.",
698: filename, linenum);
699: if ((value = convtime(arg)) == -1)
700: fatal("%s line %d: invalid time value.",
701: filename, linenum);
702: if (*intptr == -1)
703: *intptr = value;
704: break;
705:
706: case sKeyRegenerationTime:
707: intptr = &options->key_regeneration_time;
708: goto parse_time;
709:
710: case sListenAddress:
711: arg = strdelim(&cp);
1.139 djm 712: if (arg == NULL || *arg == '\0')
713: fatal("%s line %d: missing address",
1.94 markus 714: filename, linenum);
1.144 dtucker 715: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
716: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
717: && strchr(p+1, ':') != NULL) {
718: add_listen_addr(options, arg, 0);
719: break;
720: }
1.139 djm 721: p = hpdelim(&arg);
722: if (p == NULL)
723: fatal("%s line %d: bad address:port usage",
724: filename, linenum);
725: p = cleanhostname(p);
726: if (arg == NULL)
727: port = 0;
1.194 djm 728: else if ((port = a2port(arg)) <= 0)
1.139 djm 729: fatal("%s line %d: bad port number", filename, linenum);
730:
731: add_listen_addr(options, p, port);
1.25 markus 732:
1.138 djm 733: break;
734:
735: case sAddressFamily:
736: arg = strdelim(&cp);
1.141 markus 737: if (!arg || *arg == '\0')
738: fatal("%s line %d: missing address family.",
739: filename, linenum);
1.138 djm 740: intptr = &options->address_family;
741: if (options->listen_addrs != NULL)
742: fatal("%s line %d: address family must be specified before "
743: "ListenAddress.", filename, linenum);
744: if (strcasecmp(arg, "inet") == 0)
745: value = AF_INET;
746: else if (strcasecmp(arg, "inet6") == 0)
747: value = AF_INET6;
748: else if (strcasecmp(arg, "any") == 0)
749: value = AF_UNSPEC;
750: else
751: fatal("%s line %d: unsupported address family \"%s\".",
752: filename, linenum, arg);
753: if (*intptr == -1)
754: *intptr = value;
1.94 markus 755: break;
756:
757: case sHostKeyFile:
758: intptr = &options->num_host_key_files;
759: if (*intptr >= MAX_HOSTKEYS)
760: fatal("%s line %d: too many host keys specified (max %d).",
761: filename, linenum, MAX_HOSTKEYS);
762: charptr = &options->host_key_files[*intptr];
1.180 djm 763: parse_filename:
1.94 markus 764: arg = strdelim(&cp);
765: if (!arg || *arg == '\0')
766: fatal("%s line %d: missing file name.",
767: filename, linenum);
1.153 dtucker 768: if (*activep && *charptr == NULL) {
1.202 ! djm 769: *charptr = derelativise_path(arg);
1.94 markus 770: /* increase optional counter */
771: if (intptr != NULL)
772: *intptr = *intptr + 1;
773: }
774: break;
1.76 stevesk 775:
1.94 markus 776: case sPidFile:
777: charptr = &options->pid_file;
778: goto parse_filename;
1.25 markus 779:
1.94 markus 780: case sPermitRootLogin:
781: intptr = &options->permit_root_login;
782: arg = strdelim(&cp);
783: if (!arg || *arg == '\0')
784: fatal("%s line %d: missing yes/"
785: "without-password/forced-commands-only/no "
786: "argument.", filename, linenum);
787: value = 0; /* silence compiler */
788: if (strcmp(arg, "without-password") == 0)
789: value = PERMIT_NO_PASSWD;
790: else if (strcmp(arg, "forced-commands-only") == 0)
791: value = PERMIT_FORCED_ONLY;
792: else if (strcmp(arg, "yes") == 0)
793: value = PERMIT_YES;
794: else if (strcmp(arg, "no") == 0)
795: value = PERMIT_NO;
796: else
797: fatal("%s line %d: Bad yes/"
798: "without-password/forced-commands-only/no "
799: "argument: %s", filename, linenum, arg);
1.175 dtucker 800: if (*activep && *intptr == -1)
1.94 markus 801: *intptr = value;
802: break;
1.36 markus 803:
1.94 markus 804: case sIgnoreRhosts:
805: intptr = &options->ignore_rhosts;
1.180 djm 806: parse_flag:
1.94 markus 807: arg = strdelim(&cp);
808: if (!arg || *arg == '\0')
809: fatal("%s line %d: missing yes/no argument.",
810: filename, linenum);
811: value = 0; /* silence compiler */
812: if (strcmp(arg, "yes") == 0)
813: value = 1;
814: else if (strcmp(arg, "no") == 0)
815: value = 0;
816: else
817: fatal("%s line %d: Bad yes/no argument: %s",
818: filename, linenum, arg);
1.153 dtucker 819: if (*activep && *intptr == -1)
1.94 markus 820: *intptr = value;
821: break;
822:
823: case sIgnoreUserKnownHosts:
824: intptr = &options->ignore_user_known_hosts;
825: goto parse_flag;
826:
827: case sRhostsRSAAuthentication:
828: intptr = &options->rhosts_rsa_authentication;
829: goto parse_flag;
830:
831: case sHostbasedAuthentication:
832: intptr = &options->hostbased_authentication;
833: goto parse_flag;
834:
835: case sHostbasedUsesNameFromPacketOnly:
836: intptr = &options->hostbased_uses_name_from_packet_only;
837: goto parse_flag;
838:
839: case sRSAAuthentication:
840: intptr = &options->rsa_authentication;
841: goto parse_flag;
842:
843: case sPubkeyAuthentication:
844: intptr = &options->pubkey_authentication;
845: goto parse_flag;
1.119 jakob 846:
1.94 markus 847: case sKerberosAuthentication:
848: intptr = &options->kerberos_authentication;
849: goto parse_flag;
850:
851: case sKerberosOrLocalPasswd:
852: intptr = &options->kerberos_or_local_passwd;
853: goto parse_flag;
854:
855: case sKerberosTicketCleanup:
856: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 857: goto parse_flag;
858:
859: case sKerberosGetAFSToken:
860: intptr = &options->kerberos_get_afs_token;
1.125 markus 861: goto parse_flag;
862:
863: case sGssAuthentication:
864: intptr = &options->gss_authentication;
865: goto parse_flag;
866:
867: case sGssCleanupCreds:
868: intptr = &options->gss_cleanup_creds;
1.94 markus 869: goto parse_flag;
870:
871: case sPasswordAuthentication:
872: intptr = &options->password_authentication;
873: goto parse_flag;
874:
1.190 djm 875: case sZeroKnowledgePasswordAuthentication:
876: intptr = &options->zero_knowledge_password_authentication;
877: goto parse_flag;
878:
1.94 markus 879: case sKbdInteractiveAuthentication:
880: intptr = &options->kbd_interactive_authentication;
881: goto parse_flag;
882:
883: case sChallengeResponseAuthentication:
884: intptr = &options->challenge_response_authentication;
885: goto parse_flag;
886:
887: case sPrintMotd:
888: intptr = &options->print_motd;
889: goto parse_flag;
890:
891: case sPrintLastLog:
892: intptr = &options->print_lastlog;
893: goto parse_flag;
894:
895: case sX11Forwarding:
896: intptr = &options->x11_forwarding;
897: goto parse_flag;
898:
899: case sX11DisplayOffset:
900: intptr = &options->x11_display_offset;
901: goto parse_int;
1.99 stevesk 902:
903: case sX11UseLocalhost:
904: intptr = &options->x11_use_localhost;
905: goto parse_flag;
1.94 markus 906:
907: case sXAuthLocation:
908: charptr = &options->xauth_location;
909: goto parse_filename;
910:
911: case sStrictModes:
912: intptr = &options->strict_modes;
913: goto parse_flag;
914:
1.129 markus 915: case sTCPKeepAlive:
916: intptr = &options->tcp_keep_alive;
1.94 markus 917: goto parse_flag;
918:
919: case sEmptyPasswd:
920: intptr = &options->permit_empty_passwd;
1.113 markus 921: goto parse_flag;
922:
923: case sPermitUserEnvironment:
924: intptr = &options->permit_user_env;
1.94 markus 925: goto parse_flag;
926:
927: case sUseLogin:
928: intptr = &options->use_login;
1.111 markus 929: goto parse_flag;
930:
931: case sCompression:
932: intptr = &options->compression;
1.143 markus 933: arg = strdelim(&cp);
934: if (!arg || *arg == '\0')
935: fatal("%s line %d: missing yes/no/delayed "
936: "argument.", filename, linenum);
937: value = 0; /* silence compiler */
938: if (strcmp(arg, "delayed") == 0)
939: value = COMP_DELAYED;
940: else if (strcmp(arg, "yes") == 0)
941: value = COMP_ZLIB;
942: else if (strcmp(arg, "no") == 0)
943: value = COMP_NONE;
944: else
945: fatal("%s line %d: Bad yes/no/delayed "
946: "argument: %s", filename, linenum, arg);
947: if (*intptr == -1)
948: *intptr = value;
949: break;
1.94 markus 950:
951: case sGatewayPorts:
952: intptr = &options->gateway_ports;
1.139 djm 953: arg = strdelim(&cp);
954: if (!arg || *arg == '\0')
955: fatal("%s line %d: missing yes/no/clientspecified "
956: "argument.", filename, linenum);
957: value = 0; /* silence compiler */
958: if (strcmp(arg, "clientspecified") == 0)
959: value = 2;
960: else if (strcmp(arg, "yes") == 0)
961: value = 1;
962: else if (strcmp(arg, "no") == 0)
963: value = 0;
964: else
965: fatal("%s line %d: Bad yes/no/clientspecified "
966: "argument: %s", filename, linenum, arg);
1.169 dtucker 967: if (*activep && *intptr == -1)
1.139 djm 968: *intptr = value;
969: break;
1.25 markus 970:
1.122 markus 971: case sUseDNS:
972: intptr = &options->use_dns;
1.94 markus 973: goto parse_flag;
1.53 markus 974:
1.94 markus 975: case sLogFacility:
1.174 dtucker 976: log_facility_ptr = &options->log_facility;
1.94 markus 977: arg = strdelim(&cp);
978: value = log_facility_number(arg);
1.101 markus 979: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 980: fatal("%.200s line %d: unsupported log facility '%s'",
981: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 982: if (*log_facility_ptr == -1)
983: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 984: break;
1.25 markus 985:
1.94 markus 986: case sLogLevel:
1.174 dtucker 987: log_level_ptr = &options->log_level;
1.94 markus 988: arg = strdelim(&cp);
989: value = log_level_number(arg);
1.101 markus 990: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 991: fatal("%.200s line %d: unsupported log level '%s'",
992: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 993: if (*log_level_ptr == -1)
994: *log_level_ptr = (LogLevel) value;
1.94 markus 995: break;
996:
997: case sAllowTcpForwarding:
998: intptr = &options->allow_tcp_forwarding;
999: goto parse_flag;
1.102 provos 1000:
1.178 pyr 1001: case sAllowAgentForwarding:
1002: intptr = &options->allow_agent_forwarding;
1003: goto parse_flag;
1004:
1.102 provos 1005: case sUsePrivilegeSeparation:
1006: intptr = &use_privsep;
1007: goto parse_flag;
1.94 markus 1008:
1009: case sAllowUsers:
1010: while ((arg = strdelim(&cp)) && *arg != '\0') {
1011: if (options->num_allow_users >= MAX_ALLOW_USERS)
1012: fatal("%s line %d: too many allow users.",
1013: filename, linenum);
1.112 deraadt 1014: options->allow_users[options->num_allow_users++] =
1015: xstrdup(arg);
1.94 markus 1016: }
1017: break;
1.25 markus 1018:
1.94 markus 1019: case sDenyUsers:
1020: while ((arg = strdelim(&cp)) && *arg != '\0') {
1021: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1022: fatal("%s line %d: too many deny users.",
1.94 markus 1023: filename, linenum);
1.112 deraadt 1024: options->deny_users[options->num_deny_users++] =
1025: xstrdup(arg);
1.94 markus 1026: }
1027: break;
1.25 markus 1028:
1.94 markus 1029: case sAllowGroups:
1030: while ((arg = strdelim(&cp)) && *arg != '\0') {
1031: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1032: fatal("%s line %d: too many allow groups.",
1033: filename, linenum);
1.112 deraadt 1034: options->allow_groups[options->num_allow_groups++] =
1035: xstrdup(arg);
1.94 markus 1036: }
1037: break;
1.33 markus 1038:
1.94 markus 1039: case sDenyGroups:
1040: while ((arg = strdelim(&cp)) && *arg != '\0') {
1041: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1042: fatal("%s line %d: too many deny groups.",
1043: filename, linenum);
1044: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1045: }
1046: break;
1.66 markus 1047:
1.94 markus 1048: case sCiphers:
1049: arg = strdelim(&cp);
1050: if (!arg || *arg == '\0')
1051: fatal("%s line %d: Missing argument.", filename, linenum);
1052: if (!ciphers_valid(arg))
1053: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1054: filename, linenum, arg ? arg : "<NONE>");
1055: if (options->ciphers == NULL)
1056: options->ciphers = xstrdup(arg);
1057: break;
1.33 markus 1058:
1.94 markus 1059: case sMacs:
1060: arg = strdelim(&cp);
1061: if (!arg || *arg == '\0')
1062: fatal("%s line %d: Missing argument.", filename, linenum);
1063: if (!mac_valid(arg))
1064: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1065: filename, linenum, arg ? arg : "<NONE>");
1066: if (options->macs == NULL)
1067: options->macs = xstrdup(arg);
1068: break;
1.43 jakob 1069:
1.94 markus 1070: case sProtocol:
1071: intptr = &options->protocol;
1072: arg = strdelim(&cp);
1073: if (!arg || *arg == '\0')
1074: fatal("%s line %d: Missing argument.", filename, linenum);
1075: value = proto_spec(arg);
1076: if (value == SSH_PROTO_UNKNOWN)
1077: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1078: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1079: if (*intptr == SSH_PROTO_UNKNOWN)
1080: *intptr = value;
1081: break;
1082:
1083: case sSubsystem:
1084: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1085: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1086: filename, linenum);
1.94 markus 1087: }
1088: arg = strdelim(&cp);
1089: if (!arg || *arg == '\0')
1090: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1091: filename, linenum);
1.153 dtucker 1092: if (!*activep) {
1093: arg = strdelim(&cp);
1094: break;
1095: }
1.94 markus 1096: for (i = 0; i < options->num_subsystems; i++)
1097: if (strcmp(arg, options->subsystem_name[i]) == 0)
1098: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1099: filename, linenum, arg);
1.94 markus 1100: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1101: arg = strdelim(&cp);
1102: if (!arg || *arg == '\0')
1103: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1104: filename, linenum);
1.94 markus 1105: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1106:
1107: /* Collect arguments (separate to executable) */
1108: p = xstrdup(arg);
1109: len = strlen(p) + 1;
1110: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1111: len += 1 + strlen(arg);
1112: p = xrealloc(p, 1, len);
1113: strlcat(p, " ", len);
1114: strlcat(p, arg, len);
1115: }
1116: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1117: options->num_subsystems++;
1118: break;
1.46 markus 1119:
1.94 markus 1120: case sMaxStartups:
1121: arg = strdelim(&cp);
1122: if (!arg || *arg == '\0')
1123: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1124: filename, linenum);
1.94 markus 1125: if ((n = sscanf(arg, "%d:%d:%d",
1126: &options->max_startups_begin,
1127: &options->max_startups_rate,
1128: &options->max_startups)) == 3) {
1129: if (options->max_startups_begin >
1130: options->max_startups ||
1131: options->max_startups_rate > 100 ||
1132: options->max_startups_rate < 1)
1.50 markus 1133: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1134: filename, linenum);
1.94 markus 1135: } else if (n != 1)
1136: fatal("%s line %d: Illegal MaxStartups spec.",
1137: filename, linenum);
1138: else
1139: options->max_startups = options->max_startups_begin;
1140: break;
1.133 dtucker 1141:
1142: case sMaxAuthTries:
1143: intptr = &options->max_authtries;
1144: goto parse_int;
1.94 markus 1145:
1.180 djm 1146: case sMaxSessions:
1147: intptr = &options->max_sessions;
1148: goto parse_int;
1149:
1.94 markus 1150: case sBanner:
1151: charptr = &options->banner;
1152: goto parse_filename;
1.176 djm 1153:
1.94 markus 1154: /*
1155: * These options can contain %X options expanded at
1156: * connect time, so that you can specify paths like:
1157: *
1158: * AuthorizedKeysFile /etc/ssh_keys/%u
1159: */
1160: case sAuthorizedKeysFile:
1161: case sAuthorizedKeysFile2:
1.163 stevesk 1162: charptr = (opcode == sAuthorizedKeysFile) ?
1.94 markus 1163: &options->authorized_keys_file :
1164: &options->authorized_keys_file2;
1165: goto parse_filename;
1166:
1167: case sClientAliveInterval:
1168: intptr = &options->client_alive_interval;
1169: goto parse_time;
1170:
1171: case sClientAliveCountMax:
1172: intptr = &options->client_alive_count_max;
1173: goto parse_int;
1.131 djm 1174:
1175: case sAcceptEnv:
1176: while ((arg = strdelim(&cp)) && *arg != '\0') {
1177: if (strchr(arg, '=') != NULL)
1178: fatal("%s line %d: Invalid environment name.",
1179: filename, linenum);
1180: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1181: fatal("%s line %d: too many allow env.",
1182: filename, linenum);
1.153 dtucker 1183: if (!*activep)
1184: break;
1.131 djm 1185: options->accept_env[options->num_accept_env++] =
1186: xstrdup(arg);
1187: }
1188: break;
1.145 reyk 1189:
1190: case sPermitTunnel:
1191: intptr = &options->permit_tun;
1.146 reyk 1192: arg = strdelim(&cp);
1193: if (!arg || *arg == '\0')
1194: fatal("%s line %d: Missing yes/point-to-point/"
1195: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1196: value = -1;
1197: for (i = 0; tunmode_desc[i].val != -1; i++)
1198: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1199: value = tunmode_desc[i].val;
1200: break;
1201: }
1202: if (value == -1)
1.146 reyk 1203: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1204: "no argument: %s", filename, linenum, arg);
1205: if (*intptr == -1)
1206: *intptr = value;
1207: break;
1.94 markus 1208:
1.153 dtucker 1209: case sMatch:
1210: if (cmdline)
1211: fatal("Match directive not supported as a command-line "
1212: "option");
1213: value = match_cfg_line(&cp, linenum, user, host, address);
1214: if (value < 0)
1215: fatal("%s line %d: Bad Match condition", filename,
1216: linenum);
1217: *activep = value;
1.156 dtucker 1218: break;
1219:
1220: case sPermitOpen:
1221: arg = strdelim(&cp);
1222: if (!arg || *arg == '\0')
1223: fatal("%s line %d: missing PermitOpen specification",
1224: filename, linenum);
1.167 dtucker 1225: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1226: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1227: if (*activep && n == -1) {
1.156 dtucker 1228: channel_clear_adm_permitted_opens();
1.159 dtucker 1229: options->num_permitted_opens = 0;
1230: }
1.156 dtucker 1231: break;
1232: }
1.166 dtucker 1233: if (*activep && n == -1)
1234: channel_clear_adm_permitted_opens();
1.159 dtucker 1235: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1236: p = hpdelim(&arg);
1237: if (p == NULL)
1238: fatal("%s line %d: missing host in PermitOpen",
1239: filename, linenum);
1240: p = cleanhostname(p);
1.194 djm 1241: if (arg == NULL || (port = a2port(arg)) <= 0)
1.159 dtucker 1242: fatal("%s line %d: bad port number in "
1243: "PermitOpen", filename, linenum);
1.166 dtucker 1244: if (*activep && n == -1)
1.159 dtucker 1245: options->num_permitted_opens =
1246: channel_add_adm_permitted_opens(p, port);
1247: }
1.153 dtucker 1248: break;
1249:
1.158 dtucker 1250: case sForceCommand:
1251: if (cp == NULL)
1252: fatal("%.200s line %d: Missing argument.", filename,
1253: linenum);
1254: len = strspn(cp, WHITESPACE);
1255: if (*activep && options->adm_forced_command == NULL)
1256: options->adm_forced_command = xstrdup(cp + len);
1257: return 0;
1258:
1.176 djm 1259: case sChrootDirectory:
1260: charptr = &options->chroot_directory;
1.177 djm 1261:
1262: arg = strdelim(&cp);
1263: if (!arg || *arg == '\0')
1264: fatal("%s line %d: missing file name.",
1265: filename, linenum);
1266: if (*activep && *charptr == NULL)
1267: *charptr = xstrdup(arg);
1268: break;
1.176 djm 1269:
1.94 markus 1270: case sDeprecated:
1.117 itojun 1271: logit("%s line %d: Deprecated option %s",
1.121 jakob 1272: filename, linenum, arg);
1273: while (arg)
1274: arg = strdelim(&cp);
1275: break;
1276:
1277: case sUnsupported:
1278: logit("%s line %d: Unsupported option %s",
1.94 markus 1279: filename, linenum, arg);
1280: while (arg)
1281: arg = strdelim(&cp);
1282: break;
1283:
1284: default:
1285: fatal("%s line %d: Missing handler for opcode %s (%d)",
1286: filename, linenum, arg, opcode);
1287: }
1288: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1289: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1290: filename, linenum, arg);
1291: return 0;
1292: }
1293:
1294: /* Reads the server configuration file. */
1.25 markus 1295:
1.94 markus 1296: void
1.134 djm 1297: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1298: {
1.134 djm 1299: char line[1024], *cp;
1.94 markus 1300: FILE *f;
1.81 stevesk 1301:
1.134 djm 1302: debug2("%s: filename %s", __func__, filename);
1303: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1304: perror(filename);
1305: exit(1);
1306: }
1.134 djm 1307: buffer_clear(conf);
1308: while (fgets(line, sizeof(line), f)) {
1309: /*
1310: * Trim out comments and strip whitespace
1.135 deraadt 1311: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1312: * line numbers later for error messages
1313: */
1314: if ((cp = strchr(line, '#')) != NULL)
1315: memcpy(cp, "\n", 2);
1316: cp = line + strspn(line, " \t\r");
1317:
1318: buffer_append(conf, cp, strlen(cp));
1319: }
1320: buffer_append(conf, "\0", 1);
1321: fclose(f);
1322: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1323: }
1324:
1325: void
1.153 dtucker 1326: parse_server_match_config(ServerOptions *options, const char *user,
1327: const char *host, const char *address)
1328: {
1329: ServerOptions mo;
1330:
1331: initialize_server_options(&mo);
1332: parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
1.168 dtucker 1333: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1334: }
1335:
1.168 dtucker 1336: /* Helper macros */
1337: #define M_CP_INTOPT(n) do {\
1338: if (src->n != -1) \
1339: dst->n = src->n; \
1340: } while (0)
1341: #define M_CP_STROPT(n) do {\
1342: if (src->n != NULL) { \
1343: if (dst->n != NULL) \
1344: xfree(dst->n); \
1345: dst->n = src->n; \
1346: } \
1347: } while(0)
1348:
1349: /*
1350: * Copy any supported values that are set.
1351: *
1.195 jj 1352: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1353: * array values that are not used pre-authentication, because any that we
1354: * do use must be explictly sent in mm_getpwnamallow().
1355: */
1.153 dtucker 1356: void
1.168 dtucker 1357: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1358: {
1.168 dtucker 1359: M_CP_INTOPT(password_authentication);
1360: M_CP_INTOPT(gss_authentication);
1361: M_CP_INTOPT(rsa_authentication);
1362: M_CP_INTOPT(pubkey_authentication);
1363: M_CP_INTOPT(kerberos_authentication);
1364: M_CP_INTOPT(hostbased_authentication);
1365: M_CP_INTOPT(kbd_interactive_authentication);
1.190 djm 1366: M_CP_INTOPT(zero_knowledge_password_authentication);
1.175 dtucker 1367: M_CP_INTOPT(permit_root_login);
1.188 djm 1368: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1369:
1370: M_CP_INTOPT(allow_tcp_forwarding);
1.178 pyr 1371: M_CP_INTOPT(allow_agent_forwarding);
1.168 dtucker 1372: M_CP_INTOPT(gateway_ports);
1373: M_CP_INTOPT(x11_display_offset);
1374: M_CP_INTOPT(x11_forwarding);
1375: M_CP_INTOPT(x11_use_localhost);
1.180 djm 1376: M_CP_INTOPT(max_sessions);
1.184 dtucker 1377: M_CP_INTOPT(max_authtries);
1.168 dtucker 1378:
1379: M_CP_STROPT(banner);
1380: if (preauth)
1381: return;
1382: M_CP_STROPT(adm_forced_command);
1.176 djm 1383: M_CP_STROPT(chroot_directory);
1.153 dtucker 1384: }
1.168 dtucker 1385:
1386: #undef M_CP_INTOPT
1387: #undef M_CP_STROPT
1.153 dtucker 1388:
1389: void
1390: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1391: const char *user, const char *host, const char *address)
1.134 djm 1392: {
1.153 dtucker 1393: int active, linenum, bad_options = 0;
1.136 dtucker 1394: char *cp, *obuf, *cbuf;
1.134 djm 1395:
1396: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1397:
1.136 dtucker 1398: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.153 dtucker 1399: active = user ? 0 : 1;
1.137 dtucker 1400: linenum = 1;
1.140 deraadt 1401: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1402: if (process_server_config_line(options, cp, filename,
1.153 dtucker 1403: linenum++, &active, user, host, address) != 0)
1.94 markus 1404: bad_options++;
1.1 deraadt 1405: }
1.136 dtucker 1406: xfree(obuf);
1.78 stevesk 1407: if (bad_options > 0)
1408: fatal("%s: terminating, %d bad configuration options",
1409: filename, bad_options);
1.182 dtucker 1410: }
1411:
1412: static const char *
1413: fmt_intarg(ServerOpCodes code, int val)
1414: {
1415: if (code == sAddressFamily) {
1416: switch (val) {
1417: case AF_INET:
1418: return "inet";
1419: case AF_INET6:
1420: return "inet6";
1421: case AF_UNSPEC:
1422: return "any";
1423: default:
1424: return "UNKNOWN";
1425: }
1426: }
1427: if (code == sPermitRootLogin) {
1428: switch (val) {
1429: case PERMIT_NO_PASSWD:
1.191 jmc 1430: return "without-password";
1.182 dtucker 1431: case PERMIT_FORCED_ONLY:
1432: return "forced-commands-only";
1433: case PERMIT_YES:
1434: return "yes";
1435: }
1436: }
1437: if (code == sProtocol) {
1438: switch (val) {
1439: case SSH_PROTO_1:
1440: return "1";
1441: case SSH_PROTO_2:
1442: return "2";
1443: case (SSH_PROTO_1|SSH_PROTO_2):
1444: return "2,1";
1445: default:
1446: return "UNKNOWN";
1447: }
1448: }
1449: if (code == sGatewayPorts && val == 2)
1450: return "clientspecified";
1451: if (code == sCompression && val == COMP_DELAYED)
1452: return "delayed";
1453: switch (val) {
1454: case -1:
1455: return "unset";
1456: case 0:
1457: return "no";
1458: case 1:
1459: return "yes";
1460: }
1461: return "UNKNOWN";
1462: }
1463:
1464: static const char *
1465: lookup_opcode_name(ServerOpCodes code)
1466: {
1467: u_int i;
1468:
1469: for (i = 0; keywords[i].name != NULL; i++)
1470: if (keywords[i].opcode == code)
1471: return(keywords[i].name);
1472: return "UNKNOWN";
1473: }
1474:
1475: static void
1476: dump_cfg_int(ServerOpCodes code, int val)
1477: {
1478: printf("%s %d\n", lookup_opcode_name(code), val);
1479: }
1480:
1481: static void
1482: dump_cfg_fmtint(ServerOpCodes code, int val)
1483: {
1484: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1485: }
1486:
1487: static void
1488: dump_cfg_string(ServerOpCodes code, const char *val)
1489: {
1490: if (val == NULL)
1491: return;
1492: printf("%s %s\n", lookup_opcode_name(code), val);
1493: }
1494:
1495: static void
1496: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
1497: {
1498: u_int i;
1499:
1500: for (i = 0; i < count; i++)
1501: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
1502: }
1503:
1504: void
1505: dump_config(ServerOptions *o)
1506: {
1507: u_int i;
1508: int ret;
1509: struct addrinfo *ai;
1510: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1511:
1512: /* these are usually at the top of the config */
1513: for (i = 0; i < o->num_ports; i++)
1514: printf("port %d\n", o->ports[i]);
1515: dump_cfg_fmtint(sProtocol, o->protocol);
1516: dump_cfg_fmtint(sAddressFamily, o->address_family);
1517:
1518: /* ListenAddress must be after Port */
1519: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
1520: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1521: sizeof(addr), port, sizeof(port),
1522: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1523: error("getnameinfo failed: %.100s",
1524: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
1525: strerror(errno));
1526: } else {
1527: if (ai->ai_family == AF_INET6)
1528: printf("listenaddress [%s]:%s\n", addr, port);
1529: else
1530: printf("listenaddress %s:%s\n", addr, port);
1531: }
1532: }
1533:
1534: /* integer arguments */
1535: dump_cfg_int(sServerKeyBits, o->server_key_bits);
1536: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
1537: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
1538: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
1539: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 1540: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 1541: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
1542: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1543:
1544: /* formatted integer arguments */
1545: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
1546: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
1547: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
1548: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
1549: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
1550: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
1551: o->hostbased_uses_name_from_packet_only);
1552: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
1553: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 1554: #ifdef KRB5
1.182 dtucker 1555: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
1556: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
1557: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
1558: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 1559: #endif
1560: #ifdef GSSAPI
1.182 dtucker 1561: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
1562: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.190 djm 1563: #endif
1564: #ifdef JPAKE
1565: dump_cfg_fmtint(sZeroKnowledgePasswordAuthentication,
1566: o->zero_knowledge_password_authentication);
1.187 djm 1567: #endif
1.182 dtucker 1568: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
1569: dump_cfg_fmtint(sKbdInteractiveAuthentication,
1570: o->kbd_interactive_authentication);
1571: dump_cfg_fmtint(sChallengeResponseAuthentication,
1572: o->challenge_response_authentication);
1573: dump_cfg_fmtint(sPrintMotd, o->print_motd);
1574: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
1575: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
1576: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1577: dump_cfg_fmtint(sStrictModes, o->strict_modes);
1578: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
1579: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
1580: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
1581: dump_cfg_fmtint(sUseLogin, o->use_login);
1582: dump_cfg_fmtint(sCompression, o->compression);
1583: dump_cfg_fmtint(sGatewayPorts, o->gateway_ports);
1584: dump_cfg_fmtint(sUseDNS, o->use_dns);
1585: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1586: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1587:
1588: /* string arguments */
1589: dump_cfg_string(sPidFile, o->pid_file);
1590: dump_cfg_string(sXAuthLocation, o->xauth_location);
1591: dump_cfg_string(sCiphers, o->ciphers);
1592: dump_cfg_string(sMacs, o->macs);
1593: dump_cfg_string(sBanner, o->banner);
1594: dump_cfg_string(sAuthorizedKeysFile, o->authorized_keys_file);
1595: dump_cfg_string(sAuthorizedKeysFile2, o->authorized_keys_file2);
1596: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 1597: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.182 dtucker 1598:
1599: /* string arguments requiring a lookup */
1600: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
1601: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
1602:
1603: /* string array arguments */
1604: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1605: o->host_key_files);
1606: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
1607: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
1608: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
1609: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
1610: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1611:
1612: /* other arguments */
1613: for (i = 0; i < o->num_subsystems; i++)
1614: printf("subsystem %s %s\n", o->subsystem_name[i],
1615: o->subsystem_args[i]);
1616:
1617: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
1618: o->max_startups_rate, o->max_startups);
1619:
1620: for (i = 0; tunmode_desc[i].val != -1; i++)
1621: if (tunmode_desc[i].val == o->permit_tun) {
1622: s = tunmode_desc[i].text;
1623: break;
1624: }
1625: dump_cfg_string(sPermitTunnel, s);
1626:
1627: channel_print_adm_permitted_opens();
1.1 deraadt 1628: }
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