Annotation of src/usr.bin/ssh/servconf.c, Revision 1.195
1.195 ! jj 1: /* $OpenBSD: servconf.c,v 1.194 2009/01/22 10:02:34 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;
1.36 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)
130: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
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,
1.178 pyr 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:
1.84 itojun 425: static void
1.194 djm 426: add_listen_addr(ServerOptions *options, char *addr, int port)
1.74 stevesk 427: {
1.142 djm 428: u_int i;
1.74 stevesk 429:
430: if (options->num_ports == 0)
431: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.138 djm 432: if (options->address_family == -1)
433: options->address_family = AF_UNSPEC;
1.76 stevesk 434: if (port == 0)
1.74 stevesk 435: for (i = 0; i < options->num_ports; i++)
436: add_one_listen_addr(options, addr, options->ports[i]);
437: else
1.76 stevesk 438: add_one_listen_addr(options, addr, port);
1.74 stevesk 439: }
440:
1.84 itojun 441: static void
1.194 djm 442: add_one_listen_addr(ServerOptions *options, char *addr, int port)
1.29 markus 443: {
444: struct addrinfo hints, *ai, *aitop;
445: char strport[NI_MAXSERV];
446: int gaierr;
447:
1.74 stevesk 448: memset(&hints, 0, sizeof(hints));
1.138 djm 449: hints.ai_family = options->address_family;
1.74 stevesk 450: hints.ai_socktype = SOCK_STREAM;
451: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 452: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 453: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
454: fatal("bad addr or host: %s (%s)",
455: addr ? addr : "<NULL>",
1.173 dtucker 456: ssh_gai_strerror(gaierr));
1.74 stevesk 457: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
458: ;
459: ai->ai_next = options->listen_addrs;
460: options->listen_addrs = aitop;
1.29 markus 461: }
462:
1.153 dtucker 463: /*
464: * The strategy for the Match blocks is that the config file is parsed twice.
465: *
466: * The first time is at startup. activep is initialized to 1 and the
467: * directives in the global context are processed and acted on. Hitting a
468: * Match directive unsets activep and the directives inside the block are
469: * checked for syntax only.
470: *
471: * The second time is after a connection has been established but before
472: * authentication. activep is initialized to 2 and global config directives
473: * are ignored since they have already been processed. If the criteria in a
474: * Match block is met, activep is set and the subsequent directives
475: * processed and actioned until EOF or another Match block unsets it. Any
476: * options set are copied into the main server config.
477: *
478: * Potential additions/improvements:
479: * - Add Match support for pre-kex directives, eg Protocol, Ciphers.
480: *
481: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
482: * Match Address 192.168.0.*
483: * Tag trusted
484: * Match Group wheel
485: * Tag trusted
486: * Match Tag trusted
487: * AllowTcpForwarding yes
488: * GatewayPorts clientspecified
489: * [...]
490: *
491: * - Add a PermittedChannelRequests directive
492: * Match Group shell
493: * PermittedChannelRequests session,forwarded-tcpip
494: */
495:
496: static int
1.165 dtucker 497: match_cfg_line_group(const char *grps, int line, const char *user)
498: {
499: int result = 0;
500: struct passwd *pw;
501:
502: if (user == NULL)
503: goto out;
504:
505: if ((pw = getpwnam(user)) == NULL) {
506: debug("Can't match group at line %d because user %.100s does "
507: "not exist", line, user);
508: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
509: debug("Can't Match group because user %.100s not in any group "
510: "at line %d", user, line);
1.186 djm 511: } else if (ga_match_pattern_list(grps) != 1) {
512: debug("user %.100s does not match group list %.100s at line %d",
513: user, grps, line);
1.165 dtucker 514: } else {
1.186 djm 515: debug("user %.100s matched group list %.100s at line %d", user,
516: grps, line);
1.165 dtucker 517: result = 1;
518: }
519: out:
520: ga_free();
521: return result;
522: }
523:
524: static int
1.153 dtucker 525: match_cfg_line(char **condition, int line, const char *user, const char *host,
526: const char *address)
527: {
528: int result = 1;
529: char *arg, *attrib, *cp = *condition;
530: size_t len;
531:
532: if (user == NULL)
533: debug3("checking syntax for 'Match %s'", cp);
534: else
535: debug3("checking match for '%s' user %s host %s addr %s", cp,
536: user ? user : "(null)", host ? host : "(null)",
537: address ? address : "(null)");
538:
539: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
540: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
541: error("Missing Match criteria for %s", attrib);
542: return -1;
543: }
544: len = strlen(arg);
545: if (strcasecmp(attrib, "user") == 0) {
546: if (!user) {
547: result = 0;
548: continue;
549: }
550: if (match_pattern_list(user, arg, len, 0) != 1)
551: result = 0;
552: else
553: debug("user %.100s matched 'User %.100s' at "
554: "line %d", user, arg, line);
1.165 dtucker 555: } else if (strcasecmp(attrib, "group") == 0) {
556: switch (match_cfg_line_group(arg, line, user)) {
557: case -1:
558: return -1;
559: case 0:
560: result = 0;
561: }
1.153 dtucker 562: } else if (strcasecmp(attrib, "host") == 0) {
563: if (!host) {
564: result = 0;
565: continue;
566: }
567: if (match_hostname(host, arg, len) != 1)
568: result = 0;
569: else
570: debug("connection from %.100s matched 'Host "
571: "%.100s' at line %d", host, arg, line);
572: } else if (strcasecmp(attrib, "address") == 0) {
1.181 djm 573: switch (addr_match_list(address, arg)) {
574: case 1:
575: debug("connection from %.100s matched 'Address "
576: "%.100s' at line %d", address, arg, line);
577: break;
578: case 0:
1.183 djm 579: case -1:
1.153 dtucker 580: result = 0;
1.181 djm 581: break;
1.183 djm 582: case -2:
1.181 djm 583: return -1;
1.153 dtucker 584: }
585: } else {
586: error("Unsupported Match attribute %s", attrib);
587: return -1;
588: }
589: }
590: if (user != NULL)
591: debug3("match %sfound", result ? "" : "not ");
592: *condition = cp;
593: return result;
594: }
595:
1.158 dtucker 596: #define WHITESPACE " \t\r\n"
597:
1.94 markus 598: int
599: process_server_config_line(ServerOptions *options, char *line,
1.153 dtucker 600: const char *filename, int linenum, int *activep, const char *user,
601: const char *host, const char *address)
1.1 deraadt 602: {
1.74 stevesk 603: char *cp, **charptr, *arg, *p;
1.153 dtucker 604: int cmdline = 0, *intptr, value, n;
1.174 dtucker 605: SyslogFacility *log_facility_ptr;
606: LogLevel *log_level_ptr;
1.25 markus 607: ServerOpCodes opcode;
1.194 djm 608: int port;
1.153 dtucker 609: u_int i, flags = 0;
1.151 djm 610: size_t len;
1.25 markus 611:
1.94 markus 612: cp = line;
1.148 dtucker 613: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 614: return 0;
1.94 markus 615: /* Ignore leading whitespace */
616: if (*arg == '\0')
617: arg = strdelim(&cp);
618: if (!arg || !*arg || *arg == '#')
619: return 0;
620: intptr = NULL;
621: charptr = NULL;
1.153 dtucker 622: opcode = parse_token(arg, filename, linenum, &flags);
623:
624: if (activep == NULL) { /* We are processing a command line directive */
625: cmdline = 1;
626: activep = &cmdline;
627: }
628: if (*activep && opcode != sMatch)
629: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
630: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
631: if (user == NULL) {
632: fatal("%s line %d: Directive '%s' is not allowed "
633: "within a Match block", filename, linenum, arg);
634: } else { /* this is a directive we have already processed */
635: while (arg)
636: arg = strdelim(&cp);
637: return 0;
638: }
639: }
640:
1.94 markus 641: switch (opcode) {
642: case sBadOption:
643: return -1;
644: case sPort:
645: /* ignore ports from configfile if cmdline specifies ports */
646: if (options->ports_from_cmdline)
647: return 0;
648: if (options->listen_addrs != NULL)
649: fatal("%s line %d: ports must be specified before "
1.98 stevesk 650: "ListenAddress.", filename, linenum);
1.94 markus 651: if (options->num_ports >= MAX_PORTS)
652: fatal("%s line %d: too many ports.",
653: filename, linenum);
1.48 provos 654: arg = strdelim(&cp);
1.94 markus 655: if (!arg || *arg == '\0')
656: fatal("%s line %d: missing port number.",
657: filename, linenum);
658: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 659: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 660: fatal("%s line %d: Badly formatted port number.",
661: filename, linenum);
662: break;
1.29 markus 663:
1.94 markus 664: case sServerKeyBits:
665: intptr = &options->server_key_bits;
1.180 djm 666: parse_int:
1.94 markus 667: arg = strdelim(&cp);
668: if (!arg || *arg == '\0')
669: fatal("%s line %d: missing integer value.",
670: filename, linenum);
671: value = atoi(arg);
1.153 dtucker 672: if (*activep && *intptr == -1)
1.94 markus 673: *intptr = value;
674: break;
1.25 markus 675:
1.94 markus 676: case sLoginGraceTime:
677: intptr = &options->login_grace_time;
1.180 djm 678: parse_time:
1.94 markus 679: arg = strdelim(&cp);
680: if (!arg || *arg == '\0')
681: fatal("%s line %d: missing time value.",
682: filename, linenum);
683: if ((value = convtime(arg)) == -1)
684: fatal("%s line %d: invalid time value.",
685: filename, linenum);
686: if (*intptr == -1)
687: *intptr = value;
688: break;
689:
690: case sKeyRegenerationTime:
691: intptr = &options->key_regeneration_time;
692: goto parse_time;
693:
694: case sListenAddress:
695: arg = strdelim(&cp);
1.139 djm 696: if (arg == NULL || *arg == '\0')
697: fatal("%s line %d: missing address",
1.94 markus 698: filename, linenum);
1.144 dtucker 699: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
700: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
701: && strchr(p+1, ':') != NULL) {
702: add_listen_addr(options, arg, 0);
703: break;
704: }
1.139 djm 705: p = hpdelim(&arg);
706: if (p == NULL)
707: fatal("%s line %d: bad address:port usage",
708: filename, linenum);
709: p = cleanhostname(p);
710: if (arg == NULL)
711: port = 0;
1.194 djm 712: else if ((port = a2port(arg)) <= 0)
1.139 djm 713: fatal("%s line %d: bad port number", filename, linenum);
714:
715: add_listen_addr(options, p, port);
1.25 markus 716:
1.138 djm 717: break;
718:
719: case sAddressFamily:
720: arg = strdelim(&cp);
1.141 markus 721: if (!arg || *arg == '\0')
722: fatal("%s line %d: missing address family.",
723: filename, linenum);
1.138 djm 724: intptr = &options->address_family;
725: if (options->listen_addrs != NULL)
726: fatal("%s line %d: address family must be specified before "
727: "ListenAddress.", filename, linenum);
728: if (strcasecmp(arg, "inet") == 0)
729: value = AF_INET;
730: else if (strcasecmp(arg, "inet6") == 0)
731: value = AF_INET6;
732: else if (strcasecmp(arg, "any") == 0)
733: value = AF_UNSPEC;
734: else
735: fatal("%s line %d: unsupported address family \"%s\".",
736: filename, linenum, arg);
737: if (*intptr == -1)
738: *intptr = value;
1.94 markus 739: break;
740:
741: case sHostKeyFile:
742: intptr = &options->num_host_key_files;
743: if (*intptr >= MAX_HOSTKEYS)
744: fatal("%s line %d: too many host keys specified (max %d).",
745: filename, linenum, MAX_HOSTKEYS);
746: charptr = &options->host_key_files[*intptr];
1.180 djm 747: parse_filename:
1.94 markus 748: arg = strdelim(&cp);
749: if (!arg || *arg == '\0')
750: fatal("%s line %d: missing file name.",
751: filename, linenum);
1.153 dtucker 752: if (*activep && *charptr == NULL) {
1.94 markus 753: *charptr = tilde_expand_filename(arg, getuid());
754: /* increase optional counter */
755: if (intptr != NULL)
756: *intptr = *intptr + 1;
757: }
758: break;
1.76 stevesk 759:
1.94 markus 760: case sPidFile:
761: charptr = &options->pid_file;
762: goto parse_filename;
1.25 markus 763:
1.94 markus 764: case sPermitRootLogin:
765: intptr = &options->permit_root_login;
766: arg = strdelim(&cp);
767: if (!arg || *arg == '\0')
768: fatal("%s line %d: missing yes/"
769: "without-password/forced-commands-only/no "
770: "argument.", filename, linenum);
771: value = 0; /* silence compiler */
772: if (strcmp(arg, "without-password") == 0)
773: value = PERMIT_NO_PASSWD;
774: else if (strcmp(arg, "forced-commands-only") == 0)
775: value = PERMIT_FORCED_ONLY;
776: else if (strcmp(arg, "yes") == 0)
777: value = PERMIT_YES;
778: else if (strcmp(arg, "no") == 0)
779: value = PERMIT_NO;
780: else
781: fatal("%s line %d: Bad yes/"
782: "without-password/forced-commands-only/no "
783: "argument: %s", filename, linenum, arg);
1.175 dtucker 784: if (*activep && *intptr == -1)
1.94 markus 785: *intptr = value;
786: break;
1.36 markus 787:
1.94 markus 788: case sIgnoreRhosts:
789: intptr = &options->ignore_rhosts;
1.180 djm 790: parse_flag:
1.94 markus 791: arg = strdelim(&cp);
792: if (!arg || *arg == '\0')
793: fatal("%s line %d: missing yes/no argument.",
794: filename, linenum);
795: value = 0; /* silence compiler */
796: if (strcmp(arg, "yes") == 0)
797: value = 1;
798: else if (strcmp(arg, "no") == 0)
799: value = 0;
800: else
801: fatal("%s line %d: Bad yes/no argument: %s",
802: filename, linenum, arg);
1.153 dtucker 803: if (*activep && *intptr == -1)
1.94 markus 804: *intptr = value;
805: break;
806:
807: case sIgnoreUserKnownHosts:
808: intptr = &options->ignore_user_known_hosts;
809: goto parse_flag;
810:
811: case sRhostsRSAAuthentication:
812: intptr = &options->rhosts_rsa_authentication;
813: goto parse_flag;
814:
815: case sHostbasedAuthentication:
816: intptr = &options->hostbased_authentication;
817: goto parse_flag;
818:
819: case sHostbasedUsesNameFromPacketOnly:
820: intptr = &options->hostbased_uses_name_from_packet_only;
821: goto parse_flag;
822:
823: case sRSAAuthentication:
824: intptr = &options->rsa_authentication;
825: goto parse_flag;
826:
827: case sPubkeyAuthentication:
828: intptr = &options->pubkey_authentication;
829: goto parse_flag;
1.119 jakob 830:
1.94 markus 831: case sKerberosAuthentication:
832: intptr = &options->kerberos_authentication;
833: goto parse_flag;
834:
835: case sKerberosOrLocalPasswd:
836: intptr = &options->kerberos_or_local_passwd;
837: goto parse_flag;
838:
839: case sKerberosTicketCleanup:
840: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 841: goto parse_flag;
842:
843: case sKerberosGetAFSToken:
844: intptr = &options->kerberos_get_afs_token;
1.125 markus 845: goto parse_flag;
846:
847: case sGssAuthentication:
848: intptr = &options->gss_authentication;
849: goto parse_flag;
850:
851: case sGssCleanupCreds:
852: intptr = &options->gss_cleanup_creds;
1.94 markus 853: goto parse_flag;
854:
855: case sPasswordAuthentication:
856: intptr = &options->password_authentication;
857: goto parse_flag;
858:
1.190 djm 859: case sZeroKnowledgePasswordAuthentication:
860: intptr = &options->zero_knowledge_password_authentication;
861: goto parse_flag;
862:
1.94 markus 863: case sKbdInteractiveAuthentication:
864: intptr = &options->kbd_interactive_authentication;
865: goto parse_flag;
866:
867: case sChallengeResponseAuthentication:
868: intptr = &options->challenge_response_authentication;
869: goto parse_flag;
870:
871: case sPrintMotd:
872: intptr = &options->print_motd;
873: goto parse_flag;
874:
875: case sPrintLastLog:
876: intptr = &options->print_lastlog;
877: goto parse_flag;
878:
879: case sX11Forwarding:
880: intptr = &options->x11_forwarding;
881: goto parse_flag;
882:
883: case sX11DisplayOffset:
884: intptr = &options->x11_display_offset;
885: goto parse_int;
1.99 stevesk 886:
887: case sX11UseLocalhost:
888: intptr = &options->x11_use_localhost;
889: goto parse_flag;
1.94 markus 890:
891: case sXAuthLocation:
892: charptr = &options->xauth_location;
893: goto parse_filename;
894:
895: case sStrictModes:
896: intptr = &options->strict_modes;
897: goto parse_flag;
898:
1.129 markus 899: case sTCPKeepAlive:
900: intptr = &options->tcp_keep_alive;
1.94 markus 901: goto parse_flag;
902:
903: case sEmptyPasswd:
904: intptr = &options->permit_empty_passwd;
1.113 markus 905: goto parse_flag;
906:
907: case sPermitUserEnvironment:
908: intptr = &options->permit_user_env;
1.94 markus 909: goto parse_flag;
910:
911: case sUseLogin:
912: intptr = &options->use_login;
1.111 markus 913: goto parse_flag;
914:
915: case sCompression:
916: intptr = &options->compression;
1.143 markus 917: arg = strdelim(&cp);
918: if (!arg || *arg == '\0')
919: fatal("%s line %d: missing yes/no/delayed "
920: "argument.", filename, linenum);
921: value = 0; /* silence compiler */
922: if (strcmp(arg, "delayed") == 0)
923: value = COMP_DELAYED;
924: else if (strcmp(arg, "yes") == 0)
925: value = COMP_ZLIB;
926: else if (strcmp(arg, "no") == 0)
927: value = COMP_NONE;
928: else
929: fatal("%s line %d: Bad yes/no/delayed "
930: "argument: %s", filename, linenum, arg);
931: if (*intptr == -1)
932: *intptr = value;
933: break;
1.94 markus 934:
935: case sGatewayPorts:
936: intptr = &options->gateway_ports;
1.139 djm 937: arg = strdelim(&cp);
938: if (!arg || *arg == '\0')
939: fatal("%s line %d: missing yes/no/clientspecified "
940: "argument.", filename, linenum);
941: value = 0; /* silence compiler */
942: if (strcmp(arg, "clientspecified") == 0)
943: value = 2;
944: else if (strcmp(arg, "yes") == 0)
945: value = 1;
946: else if (strcmp(arg, "no") == 0)
947: value = 0;
948: else
949: fatal("%s line %d: Bad yes/no/clientspecified "
950: "argument: %s", filename, linenum, arg);
1.169 dtucker 951: if (*activep && *intptr == -1)
1.139 djm 952: *intptr = value;
953: break;
1.25 markus 954:
1.122 markus 955: case sUseDNS:
956: intptr = &options->use_dns;
1.94 markus 957: goto parse_flag;
1.53 markus 958:
1.94 markus 959: case sLogFacility:
1.174 dtucker 960: log_facility_ptr = &options->log_facility;
1.94 markus 961: arg = strdelim(&cp);
962: value = log_facility_number(arg);
1.101 markus 963: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 964: fatal("%.200s line %d: unsupported log facility '%s'",
965: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 966: if (*log_facility_ptr == -1)
967: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 968: break;
1.25 markus 969:
1.94 markus 970: case sLogLevel:
1.174 dtucker 971: log_level_ptr = &options->log_level;
1.94 markus 972: arg = strdelim(&cp);
973: value = log_level_number(arg);
1.101 markus 974: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 975: fatal("%.200s line %d: unsupported log level '%s'",
976: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 977: if (*log_level_ptr == -1)
978: *log_level_ptr = (LogLevel) value;
1.94 markus 979: break;
980:
981: case sAllowTcpForwarding:
982: intptr = &options->allow_tcp_forwarding;
983: goto parse_flag;
1.102 provos 984:
1.178 pyr 985: case sAllowAgentForwarding:
986: intptr = &options->allow_agent_forwarding;
987: goto parse_flag;
988:
1.102 provos 989: case sUsePrivilegeSeparation:
990: intptr = &use_privsep;
991: goto parse_flag;
1.94 markus 992:
993: case sAllowUsers:
994: while ((arg = strdelim(&cp)) && *arg != '\0') {
995: if (options->num_allow_users >= MAX_ALLOW_USERS)
996: fatal("%s line %d: too many allow users.",
997: filename, linenum);
1.112 deraadt 998: options->allow_users[options->num_allow_users++] =
999: xstrdup(arg);
1.94 markus 1000: }
1001: break;
1.25 markus 1002:
1.94 markus 1003: case sDenyUsers:
1004: while ((arg = strdelim(&cp)) && *arg != '\0') {
1005: if (options->num_deny_users >= MAX_DENY_USERS)
1.163 stevesk 1006: fatal("%s line %d: too many deny users.",
1.94 markus 1007: filename, linenum);
1.112 deraadt 1008: options->deny_users[options->num_deny_users++] =
1009: xstrdup(arg);
1.94 markus 1010: }
1011: break;
1.25 markus 1012:
1.94 markus 1013: case sAllowGroups:
1014: while ((arg = strdelim(&cp)) && *arg != '\0') {
1015: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1016: fatal("%s line %d: too many allow groups.",
1017: filename, linenum);
1.112 deraadt 1018: options->allow_groups[options->num_allow_groups++] =
1019: xstrdup(arg);
1.94 markus 1020: }
1021: break;
1.33 markus 1022:
1.94 markus 1023: case sDenyGroups:
1024: while ((arg = strdelim(&cp)) && *arg != '\0') {
1025: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1026: fatal("%s line %d: too many deny groups.",
1027: filename, linenum);
1028: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1029: }
1030: break;
1.66 markus 1031:
1.94 markus 1032: case sCiphers:
1033: arg = strdelim(&cp);
1034: if (!arg || *arg == '\0')
1035: fatal("%s line %d: Missing argument.", filename, linenum);
1036: if (!ciphers_valid(arg))
1037: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1038: filename, linenum, arg ? arg : "<NONE>");
1039: if (options->ciphers == NULL)
1040: options->ciphers = xstrdup(arg);
1041: break;
1.33 markus 1042:
1.94 markus 1043: case sMacs:
1044: arg = strdelim(&cp);
1045: if (!arg || *arg == '\0')
1046: fatal("%s line %d: Missing argument.", filename, linenum);
1047: if (!mac_valid(arg))
1048: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1049: filename, linenum, arg ? arg : "<NONE>");
1050: if (options->macs == NULL)
1051: options->macs = xstrdup(arg);
1052: break;
1.43 jakob 1053:
1.94 markus 1054: case sProtocol:
1055: intptr = &options->protocol;
1056: arg = strdelim(&cp);
1057: if (!arg || *arg == '\0')
1058: fatal("%s line %d: Missing argument.", filename, linenum);
1059: value = proto_spec(arg);
1060: if (value == SSH_PROTO_UNKNOWN)
1061: fatal("%s line %d: Bad protocol spec '%s'.",
1.95 deraadt 1062: filename, linenum, arg ? arg : "<NONE>");
1.94 markus 1063: if (*intptr == SSH_PROTO_UNKNOWN)
1064: *intptr = value;
1065: break;
1066:
1067: case sSubsystem:
1068: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1069: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1070: filename, linenum);
1.94 markus 1071: }
1072: arg = strdelim(&cp);
1073: if (!arg || *arg == '\0')
1074: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1075: filename, linenum);
1.153 dtucker 1076: if (!*activep) {
1077: arg = strdelim(&cp);
1078: break;
1079: }
1.94 markus 1080: for (i = 0; i < options->num_subsystems; i++)
1081: if (strcmp(arg, options->subsystem_name[i]) == 0)
1082: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1083: filename, linenum, arg);
1.94 markus 1084: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1085: arg = strdelim(&cp);
1086: if (!arg || *arg == '\0')
1087: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1088: filename, linenum);
1.94 markus 1089: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1090:
1091: /* Collect arguments (separate to executable) */
1092: p = xstrdup(arg);
1093: len = strlen(p) + 1;
1094: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1095: len += 1 + strlen(arg);
1096: p = xrealloc(p, 1, len);
1097: strlcat(p, " ", len);
1098: strlcat(p, arg, len);
1099: }
1100: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1101: options->num_subsystems++;
1102: break;
1.46 markus 1103:
1.94 markus 1104: case sMaxStartups:
1105: arg = strdelim(&cp);
1106: if (!arg || *arg == '\0')
1107: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1108: filename, linenum);
1.94 markus 1109: if ((n = sscanf(arg, "%d:%d:%d",
1110: &options->max_startups_begin,
1111: &options->max_startups_rate,
1112: &options->max_startups)) == 3) {
1113: if (options->max_startups_begin >
1114: options->max_startups ||
1115: options->max_startups_rate > 100 ||
1116: options->max_startups_rate < 1)
1.50 markus 1117: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1118: filename, linenum);
1.94 markus 1119: } else if (n != 1)
1120: fatal("%s line %d: Illegal MaxStartups spec.",
1121: filename, linenum);
1122: else
1123: options->max_startups = options->max_startups_begin;
1124: break;
1.133 dtucker 1125:
1126: case sMaxAuthTries:
1127: intptr = &options->max_authtries;
1128: goto parse_int;
1.94 markus 1129:
1.180 djm 1130: case sMaxSessions:
1131: intptr = &options->max_sessions;
1132: goto parse_int;
1133:
1.94 markus 1134: case sBanner:
1135: charptr = &options->banner;
1136: goto parse_filename;
1.176 djm 1137:
1.94 markus 1138: /*
1139: * These options can contain %X options expanded at
1140: * connect time, so that you can specify paths like:
1141: *
1142: * AuthorizedKeysFile /etc/ssh_keys/%u
1143: */
1144: case sAuthorizedKeysFile:
1145: case sAuthorizedKeysFile2:
1.163 stevesk 1146: charptr = (opcode == sAuthorizedKeysFile) ?
1.94 markus 1147: &options->authorized_keys_file :
1148: &options->authorized_keys_file2;
1149: goto parse_filename;
1150:
1151: case sClientAliveInterval:
1152: intptr = &options->client_alive_interval;
1153: goto parse_time;
1154:
1155: case sClientAliveCountMax:
1156: intptr = &options->client_alive_count_max;
1157: goto parse_int;
1.131 djm 1158:
1159: case sAcceptEnv:
1160: while ((arg = strdelim(&cp)) && *arg != '\0') {
1161: if (strchr(arg, '=') != NULL)
1162: fatal("%s line %d: Invalid environment name.",
1163: filename, linenum);
1164: if (options->num_accept_env >= MAX_ACCEPT_ENV)
1165: fatal("%s line %d: too many allow env.",
1166: filename, linenum);
1.153 dtucker 1167: if (!*activep)
1168: break;
1.131 djm 1169: options->accept_env[options->num_accept_env++] =
1170: xstrdup(arg);
1171: }
1172: break;
1.145 reyk 1173:
1174: case sPermitTunnel:
1175: intptr = &options->permit_tun;
1.146 reyk 1176: arg = strdelim(&cp);
1177: if (!arg || *arg == '\0')
1178: fatal("%s line %d: Missing yes/point-to-point/"
1179: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1180: value = -1;
1181: for (i = 0; tunmode_desc[i].val != -1; i++)
1182: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1183: value = tunmode_desc[i].val;
1184: break;
1185: }
1186: if (value == -1)
1.146 reyk 1187: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1188: "no argument: %s", filename, linenum, arg);
1189: if (*intptr == -1)
1190: *intptr = value;
1191: break;
1.94 markus 1192:
1.153 dtucker 1193: case sMatch:
1194: if (cmdline)
1195: fatal("Match directive not supported as a command-line "
1196: "option");
1197: value = match_cfg_line(&cp, linenum, user, host, address);
1198: if (value < 0)
1199: fatal("%s line %d: Bad Match condition", filename,
1200: linenum);
1201: *activep = value;
1.156 dtucker 1202: break;
1203:
1204: case sPermitOpen:
1205: arg = strdelim(&cp);
1206: if (!arg || *arg == '\0')
1207: fatal("%s line %d: missing PermitOpen specification",
1208: filename, linenum);
1.167 dtucker 1209: n = options->num_permitted_opens; /* modified later */
1.156 dtucker 1210: if (strcmp(arg, "any") == 0) {
1.167 dtucker 1211: if (*activep && n == -1) {
1.156 dtucker 1212: channel_clear_adm_permitted_opens();
1.159 dtucker 1213: options->num_permitted_opens = 0;
1214: }
1.156 dtucker 1215: break;
1216: }
1.166 dtucker 1217: if (*activep && n == -1)
1218: channel_clear_adm_permitted_opens();
1.159 dtucker 1219: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1220: p = hpdelim(&arg);
1221: if (p == NULL)
1222: fatal("%s line %d: missing host in PermitOpen",
1223: filename, linenum);
1224: p = cleanhostname(p);
1.194 djm 1225: if (arg == NULL || (port = a2port(arg)) <= 0)
1.159 dtucker 1226: fatal("%s line %d: bad port number in "
1227: "PermitOpen", filename, linenum);
1.166 dtucker 1228: if (*activep && n == -1)
1.159 dtucker 1229: options->num_permitted_opens =
1230: channel_add_adm_permitted_opens(p, port);
1231: }
1.153 dtucker 1232: break;
1233:
1.158 dtucker 1234: case sForceCommand:
1235: if (cp == NULL)
1236: fatal("%.200s line %d: Missing argument.", filename,
1237: linenum);
1238: len = strspn(cp, WHITESPACE);
1239: if (*activep && options->adm_forced_command == NULL)
1240: options->adm_forced_command = xstrdup(cp + len);
1241: return 0;
1242:
1.176 djm 1243: case sChrootDirectory:
1244: charptr = &options->chroot_directory;
1.177 djm 1245:
1246: arg = strdelim(&cp);
1247: if (!arg || *arg == '\0')
1248: fatal("%s line %d: missing file name.",
1249: filename, linenum);
1250: if (*activep && *charptr == NULL)
1251: *charptr = xstrdup(arg);
1252: break;
1.176 djm 1253:
1.94 markus 1254: case sDeprecated:
1.117 itojun 1255: logit("%s line %d: Deprecated option %s",
1.121 jakob 1256: filename, linenum, arg);
1257: while (arg)
1258: arg = strdelim(&cp);
1259: break;
1260:
1261: case sUnsupported:
1262: logit("%s line %d: Unsupported option %s",
1.94 markus 1263: filename, linenum, arg);
1264: while (arg)
1265: arg = strdelim(&cp);
1266: break;
1267:
1268: default:
1269: fatal("%s line %d: Missing handler for opcode %s (%d)",
1270: filename, linenum, arg, opcode);
1271: }
1272: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
1273: fatal("%s line %d: garbage at end of line; \"%.200s\".",
1274: filename, linenum, arg);
1275: return 0;
1276: }
1277:
1278: /* Reads the server configuration file. */
1.25 markus 1279:
1.94 markus 1280: void
1.134 djm 1281: load_server_config(const char *filename, Buffer *conf)
1.94 markus 1282: {
1.134 djm 1283: char line[1024], *cp;
1.94 markus 1284: FILE *f;
1.81 stevesk 1285:
1.134 djm 1286: debug2("%s: filename %s", __func__, filename);
1287: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 1288: perror(filename);
1289: exit(1);
1290: }
1.134 djm 1291: buffer_clear(conf);
1292: while (fgets(line, sizeof(line), f)) {
1293: /*
1294: * Trim out comments and strip whitespace
1.135 deraadt 1295: * NB - preserve newlines, they are needed to reproduce
1.134 djm 1296: * line numbers later for error messages
1297: */
1298: if ((cp = strchr(line, '#')) != NULL)
1299: memcpy(cp, "\n", 2);
1300: cp = line + strspn(line, " \t\r");
1301:
1302: buffer_append(conf, cp, strlen(cp));
1303: }
1304: buffer_append(conf, "\0", 1);
1305: fclose(f);
1306: debug2("%s: done config len = %d", __func__, buffer_len(conf));
1307: }
1308:
1309: void
1.153 dtucker 1310: parse_server_match_config(ServerOptions *options, const char *user,
1311: const char *host, const char *address)
1312: {
1313: ServerOptions mo;
1314:
1315: initialize_server_options(&mo);
1316: parse_server_config(&mo, "reprocess config", &cfg, user, host, address);
1.168 dtucker 1317: copy_set_server_options(options, &mo, 0);
1.153 dtucker 1318: }
1319:
1.168 dtucker 1320: /* Helper macros */
1321: #define M_CP_INTOPT(n) do {\
1322: if (src->n != -1) \
1323: dst->n = src->n; \
1324: } while (0)
1325: #define M_CP_STROPT(n) do {\
1326: if (src->n != NULL) { \
1327: if (dst->n != NULL) \
1328: xfree(dst->n); \
1329: dst->n = src->n; \
1330: } \
1331: } while(0)
1332:
1333: /*
1334: * Copy any supported values that are set.
1335: *
1.195 ! jj 1336: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 1337: * array values that are not used pre-authentication, because any that we
1338: * do use must be explictly sent in mm_getpwnamallow().
1339: */
1.153 dtucker 1340: void
1.168 dtucker 1341: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 1342: {
1.168 dtucker 1343: M_CP_INTOPT(password_authentication);
1344: M_CP_INTOPT(gss_authentication);
1345: M_CP_INTOPT(rsa_authentication);
1346: M_CP_INTOPT(pubkey_authentication);
1347: M_CP_INTOPT(kerberos_authentication);
1348: M_CP_INTOPT(hostbased_authentication);
1349: M_CP_INTOPT(kbd_interactive_authentication);
1.190 djm 1350: M_CP_INTOPT(zero_knowledge_password_authentication);
1.175 dtucker 1351: M_CP_INTOPT(permit_root_login);
1.188 djm 1352: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 1353:
1354: M_CP_INTOPT(allow_tcp_forwarding);
1.178 pyr 1355: M_CP_INTOPT(allow_agent_forwarding);
1.168 dtucker 1356: M_CP_INTOPT(gateway_ports);
1357: M_CP_INTOPT(x11_display_offset);
1358: M_CP_INTOPT(x11_forwarding);
1359: M_CP_INTOPT(x11_use_localhost);
1.180 djm 1360: M_CP_INTOPT(max_sessions);
1.184 dtucker 1361: M_CP_INTOPT(max_authtries);
1.168 dtucker 1362:
1363: M_CP_STROPT(banner);
1364: if (preauth)
1365: return;
1366: M_CP_STROPT(adm_forced_command);
1.176 djm 1367: M_CP_STROPT(chroot_directory);
1.153 dtucker 1368: }
1.168 dtucker 1369:
1370: #undef M_CP_INTOPT
1371: #undef M_CP_STROPT
1.153 dtucker 1372:
1373: void
1374: parse_server_config(ServerOptions *options, const char *filename, Buffer *conf,
1375: const char *user, const char *host, const char *address)
1.134 djm 1376: {
1.153 dtucker 1377: int active, linenum, bad_options = 0;
1.136 dtucker 1378: char *cp, *obuf, *cbuf;
1.134 djm 1379:
1380: debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
1381:
1.136 dtucker 1382: obuf = cbuf = xstrdup(buffer_ptr(conf));
1.153 dtucker 1383: active = user ? 0 : 1;
1.137 dtucker 1384: linenum = 1;
1.140 deraadt 1385: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 1386: if (process_server_config_line(options, cp, filename,
1.153 dtucker 1387: linenum++, &active, user, host, address) != 0)
1.94 markus 1388: bad_options++;
1.1 deraadt 1389: }
1.136 dtucker 1390: xfree(obuf);
1.78 stevesk 1391: if (bad_options > 0)
1392: fatal("%s: terminating, %d bad configuration options",
1393: filename, bad_options);
1.182 dtucker 1394: }
1395:
1396: static const char *
1397: fmt_intarg(ServerOpCodes code, int val)
1398: {
1399: if (code == sAddressFamily) {
1400: switch (val) {
1401: case AF_INET:
1402: return "inet";
1403: case AF_INET6:
1404: return "inet6";
1405: case AF_UNSPEC:
1406: return "any";
1407: default:
1408: return "UNKNOWN";
1409: }
1410: }
1411: if (code == sPermitRootLogin) {
1412: switch (val) {
1413: case PERMIT_NO_PASSWD:
1.191 jmc 1414: return "without-password";
1.182 dtucker 1415: case PERMIT_FORCED_ONLY:
1416: return "forced-commands-only";
1417: case PERMIT_YES:
1418: return "yes";
1419: }
1420: }
1421: if (code == sProtocol) {
1422: switch (val) {
1423: case SSH_PROTO_1:
1424: return "1";
1425: case SSH_PROTO_2:
1426: return "2";
1427: case (SSH_PROTO_1|SSH_PROTO_2):
1428: return "2,1";
1429: default:
1430: return "UNKNOWN";
1431: }
1432: }
1433: if (code == sGatewayPorts && val == 2)
1434: return "clientspecified";
1435: if (code == sCompression && val == COMP_DELAYED)
1436: return "delayed";
1437: switch (val) {
1438: case -1:
1439: return "unset";
1440: case 0:
1441: return "no";
1442: case 1:
1443: return "yes";
1444: }
1445: return "UNKNOWN";
1446: }
1447:
1448: static const char *
1449: lookup_opcode_name(ServerOpCodes code)
1450: {
1451: u_int i;
1452:
1453: for (i = 0; keywords[i].name != NULL; i++)
1454: if (keywords[i].opcode == code)
1455: return(keywords[i].name);
1456: return "UNKNOWN";
1457: }
1458:
1459: static void
1460: dump_cfg_int(ServerOpCodes code, int val)
1461: {
1462: printf("%s %d\n", lookup_opcode_name(code), val);
1463: }
1464:
1465: static void
1466: dump_cfg_fmtint(ServerOpCodes code, int val)
1467: {
1468: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
1469: }
1470:
1471: static void
1472: dump_cfg_string(ServerOpCodes code, const char *val)
1473: {
1474: if (val == NULL)
1475: return;
1476: printf("%s %s\n", lookup_opcode_name(code), val);
1477: }
1478:
1479: static void
1480: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
1481: {
1482: u_int i;
1483:
1484: for (i = 0; i < count; i++)
1485: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
1486: }
1487:
1488: void
1489: dump_config(ServerOptions *o)
1490: {
1491: u_int i;
1492: int ret;
1493: struct addrinfo *ai;
1494: char addr[NI_MAXHOST], port[NI_MAXSERV], *s = NULL;
1495:
1496: /* these are usually at the top of the config */
1497: for (i = 0; i < o->num_ports; i++)
1498: printf("port %d\n", o->ports[i]);
1499: dump_cfg_fmtint(sProtocol, o->protocol);
1500: dump_cfg_fmtint(sAddressFamily, o->address_family);
1501:
1502: /* ListenAddress must be after Port */
1503: for (ai = o->listen_addrs; ai; ai = ai->ai_next) {
1504: if ((ret = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1505: sizeof(addr), port, sizeof(port),
1506: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1507: error("getnameinfo failed: %.100s",
1508: (ret != EAI_SYSTEM) ? gai_strerror(ret) :
1509: strerror(errno));
1510: } else {
1511: if (ai->ai_family == AF_INET6)
1512: printf("listenaddress [%s]:%s\n", addr, port);
1513: else
1514: printf("listenaddress %s:%s\n", addr, port);
1515: }
1516: }
1517:
1518: /* integer arguments */
1519: dump_cfg_int(sServerKeyBits, o->server_key_bits);
1520: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
1521: dump_cfg_int(sKeyRegenerationTime, o->key_regeneration_time);
1522: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
1523: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 1524: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 1525: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
1526: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1527:
1528: /* formatted integer arguments */
1529: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
1530: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
1531: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
1532: dump_cfg_fmtint(sRhostsRSAAuthentication, o->rhosts_rsa_authentication);
1533: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
1534: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
1535: o->hostbased_uses_name_from_packet_only);
1536: dump_cfg_fmtint(sRSAAuthentication, o->rsa_authentication);
1537: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 1538: #ifdef KRB5
1.182 dtucker 1539: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
1540: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
1541: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
1542: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 1543: #endif
1544: #ifdef GSSAPI
1.182 dtucker 1545: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
1546: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.190 djm 1547: #endif
1548: #ifdef JPAKE
1549: dump_cfg_fmtint(sZeroKnowledgePasswordAuthentication,
1550: o->zero_knowledge_password_authentication);
1.187 djm 1551: #endif
1.182 dtucker 1552: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
1553: dump_cfg_fmtint(sKbdInteractiveAuthentication,
1554: o->kbd_interactive_authentication);
1555: dump_cfg_fmtint(sChallengeResponseAuthentication,
1556: o->challenge_response_authentication);
1557: dump_cfg_fmtint(sPrintMotd, o->print_motd);
1558: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
1559: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
1560: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1561: dump_cfg_fmtint(sStrictModes, o->strict_modes);
1562: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
1563: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
1564: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
1565: dump_cfg_fmtint(sUseLogin, o->use_login);
1566: dump_cfg_fmtint(sCompression, o->compression);
1567: dump_cfg_fmtint(sGatewayPorts, o->gateway_ports);
1568: dump_cfg_fmtint(sUseDNS, o->use_dns);
1569: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1570: dump_cfg_fmtint(sUsePrivilegeSeparation, use_privsep);
1571:
1572: /* string arguments */
1573: dump_cfg_string(sPidFile, o->pid_file);
1574: dump_cfg_string(sXAuthLocation, o->xauth_location);
1575: dump_cfg_string(sCiphers, o->ciphers);
1576: dump_cfg_string(sMacs, o->macs);
1577: dump_cfg_string(sBanner, o->banner);
1578: dump_cfg_string(sAuthorizedKeysFile, o->authorized_keys_file);
1579: dump_cfg_string(sAuthorizedKeysFile2, o->authorized_keys_file2);
1580: dump_cfg_string(sForceCommand, o->adm_forced_command);
1581:
1582: /* string arguments requiring a lookup */
1583: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
1584: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
1585:
1586: /* string array arguments */
1587: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
1588: o->host_key_files);
1589: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
1590: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
1591: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
1592: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
1593: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1594:
1595: /* other arguments */
1596: for (i = 0; i < o->num_subsystems; i++)
1597: printf("subsystem %s %s\n", o->subsystem_name[i],
1598: o->subsystem_args[i]);
1599:
1600: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
1601: o->max_startups_rate, o->max_startups);
1602:
1603: for (i = 0; tunmode_desc[i].val != -1; i++)
1604: if (tunmode_desc[i].val == o->permit_tun) {
1605: s = tunmode_desc[i].text;
1606: break;
1607: }
1608: dump_cfg_string(sPermitTunnel, s);
1609:
1610: channel_print_adm_permitted_opens();
1.1 deraadt 1611: }
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