Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 1 | /* |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 2 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 3 | * All rights reserved |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 4 | * |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 5 | * As far as I am concerned, the code I have written for this software |
| 6 | * can be used freely for any purpose. Any derived versions of this |
| 7 | * software must be clearly marked as such, and if the derived work is |
| 8 | * incompatible with the protocol description in the RFC file, it must be |
| 9 | * called by a name other than "ssh" or "Secure Shell". |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 10 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 11 | |
| 12 | #include "includes.h" |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 13 | RCSID("$OpenBSD: servconf.c,v 1.51 2000/09/07 20:27:53 deraadt Exp $"); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 14 | |
| 15 | #include "ssh.h" |
| 16 | #include "servconf.h" |
| 17 | #include "xmalloc.h" |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 18 | #include "compat.h" |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 19 | |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 20 | /* add listen address */ |
| 21 | void add_listen_addr(ServerOptions *options, char *addr); |
| 22 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 23 | /* Initializes the server options to their default values. */ |
| 24 | |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 25 | void |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 26 | initialize_server_options(ServerOptions *options) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 27 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 28 | memset(options, 0, sizeof(*options)); |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 29 | options->num_ports = 0; |
| 30 | options->ports_from_cmdline = 0; |
| 31 | options->listen_addrs = NULL; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 32 | options->host_key_file = NULL; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 33 | options->host_dsa_key_file = NULL; |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 34 | options->pid_file = NULL; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 35 | options->server_key_bits = -1; |
| 36 | options->login_grace_time = -1; |
| 37 | options->key_regeneration_time = -1; |
| 38 | options->permit_root_login = -1; |
| 39 | options->ignore_rhosts = -1; |
| 40 | options->ignore_user_known_hosts = -1; |
| 41 | options->print_motd = -1; |
| 42 | options->check_mail = -1; |
| 43 | options->x11_forwarding = -1; |
| 44 | options->x11_display_offset = -1; |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 45 | options->xauth_location = NULL; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 46 | options->strict_modes = -1; |
| 47 | options->keepalives = -1; |
| 48 | options->log_facility = (SyslogFacility) - 1; |
| 49 | options->log_level = (LogLevel) - 1; |
| 50 | options->rhosts_authentication = -1; |
| 51 | options->rhosts_rsa_authentication = -1; |
| 52 | options->rsa_authentication = -1; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 53 | options->dsa_authentication = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 54 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 55 | options->kerberos_authentication = -1; |
| 56 | options->kerberos_or_local_passwd = -1; |
| 57 | options->kerberos_ticket_cleanup = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 58 | #endif |
| 59 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 60 | options->kerberos_tgt_passing = -1; |
| 61 | options->afs_token_passing = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 62 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 63 | options->password_authentication = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 64 | #ifdef SKEY |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 65 | options->skey_authentication = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 66 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 67 | options->permit_empty_passwd = -1; |
| 68 | options->use_login = -1; |
| 69 | options->num_allow_users = 0; |
| 70 | options->num_deny_users = 0; |
| 71 | options->num_allow_groups = 0; |
| 72 | options->num_deny_groups = 0; |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 73 | options->ciphers = NULL; |
| 74 | options->protocol = SSH_PROTO_UNKNOWN; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 75 | options->gateway_ports = -1; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 76 | options->num_subsystems = 0; |
Damien Miller | 942da03 | 2000-08-18 13:59:06 +1000 | [diff] [blame] | 77 | options->max_startups_begin = -1; |
| 78 | options->max_startups_rate = -1; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 79 | options->max_startups = -1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 80 | } |
| 81 | |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 82 | void |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 83 | fill_default_server_options(ServerOptions *options) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 84 | { |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 85 | if (options->num_ports == 0) |
| 86 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; |
| 87 | if (options->listen_addrs == NULL) |
| 88 | add_listen_addr(options, NULL); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 89 | if (options->host_key_file == NULL) |
| 90 | options->host_key_file = HOST_KEY_FILE; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 91 | if (options->host_dsa_key_file == NULL) |
| 92 | options->host_dsa_key_file = HOST_DSA_KEY_FILE; |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 93 | if (options->pid_file == NULL) |
| 94 | options->pid_file = SSH_DAEMON_PID_FILE; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 95 | if (options->server_key_bits == -1) |
| 96 | options->server_key_bits = 768; |
| 97 | if (options->login_grace_time == -1) |
| 98 | options->login_grace_time = 600; |
| 99 | if (options->key_regeneration_time == -1) |
| 100 | options->key_regeneration_time = 3600; |
| 101 | if (options->permit_root_login == -1) |
| 102 | options->permit_root_login = 1; /* yes */ |
| 103 | if (options->ignore_rhosts == -1) |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 104 | options->ignore_rhosts = 1; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 105 | if (options->ignore_user_known_hosts == -1) |
| 106 | options->ignore_user_known_hosts = 0; |
| 107 | if (options->check_mail == -1) |
| 108 | options->check_mail = 0; |
| 109 | if (options->print_motd == -1) |
| 110 | options->print_motd = 1; |
| 111 | if (options->x11_forwarding == -1) |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 112 | options->x11_forwarding = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 113 | if (options->x11_display_offset == -1) |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 114 | options->x11_display_offset = 10; |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 115 | #ifdef XAUTH_PATH |
| 116 | if (options->xauth_location == NULL) |
| 117 | options->xauth_location = XAUTH_PATH; |
| 118 | #endif /* XAUTH_PATH */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 119 | if (options->strict_modes == -1) |
| 120 | options->strict_modes = 1; |
| 121 | if (options->keepalives == -1) |
| 122 | options->keepalives = 1; |
| 123 | if (options->log_facility == (SyslogFacility) (-1)) |
| 124 | options->log_facility = SYSLOG_FACILITY_AUTH; |
| 125 | if (options->log_level == (LogLevel) (-1)) |
| 126 | options->log_level = SYSLOG_LEVEL_INFO; |
| 127 | if (options->rhosts_authentication == -1) |
| 128 | options->rhosts_authentication = 0; |
| 129 | if (options->rhosts_rsa_authentication == -1) |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 130 | options->rhosts_rsa_authentication = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 131 | if (options->rsa_authentication == -1) |
| 132 | options->rsa_authentication = 1; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 133 | if (options->dsa_authentication == -1) |
| 134 | options->dsa_authentication = 1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 135 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 136 | if (options->kerberos_authentication == -1) |
| 137 | options->kerberos_authentication = (access(KEYFILE, R_OK) == 0); |
| 138 | if (options->kerberos_or_local_passwd == -1) |
| 139 | options->kerberos_or_local_passwd = 1; |
| 140 | if (options->kerberos_ticket_cleanup == -1) |
| 141 | options->kerberos_ticket_cleanup = 1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 142 | #endif /* KRB4 */ |
| 143 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 144 | if (options->kerberos_tgt_passing == -1) |
| 145 | options->kerberos_tgt_passing = 0; |
| 146 | if (options->afs_token_passing == -1) |
| 147 | options->afs_token_passing = k_hasafs(); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 148 | #endif /* AFS */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 149 | if (options->password_authentication == -1) |
| 150 | options->password_authentication = 1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 151 | #ifdef SKEY |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 152 | if (options->skey_authentication == -1) |
| 153 | options->skey_authentication = 1; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 154 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 155 | if (options->permit_empty_passwd == -1) |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 156 | options->permit_empty_passwd = 0; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 157 | if (options->use_login == -1) |
| 158 | options->use_login = 0; |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 159 | if (options->protocol == SSH_PROTO_UNKNOWN) |
Damien Miller | eba71ba | 2000-04-29 23:57:08 +1000 | [diff] [blame] | 160 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 161 | if (options->gateway_ports == -1) |
| 162 | options->gateway_ports = 0; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 163 | if (options->max_startups == -1) |
| 164 | options->max_startups = 10; |
Damien Miller | 942da03 | 2000-08-18 13:59:06 +1000 | [diff] [blame] | 165 | if (options->max_startups_rate == -1) |
| 166 | options->max_startups_rate = 100; /* 100% */ |
| 167 | if (options->max_startups_begin == -1) |
| 168 | options->max_startups_begin = options->max_startups; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 169 | } |
| 170 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 171 | /* Keyword tokens. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 172 | typedef enum { |
| 173 | sBadOption, /* == unknown option */ |
| 174 | sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime, |
| 175 | sPermitRootLogin, sLogFacility, sLogLevel, |
| 176 | sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 177 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 178 | sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 179 | #endif |
| 180 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 181 | sKerberosTgtPassing, sAFSTokenPassing, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 182 | #endif |
| 183 | #ifdef SKEY |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 184 | sSkeyAuthentication, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 185 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 186 | sPasswordAuthentication, sListenAddress, |
| 187 | sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset, |
| 188 | sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail, |
| 189 | sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups, |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 190 | sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile, |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 191 | sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 192 | } ServerOpCodes; |
| 193 | |
| 194 | /* Textual representation of the tokens. */ |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 195 | static struct { |
| 196 | const char *name; |
| 197 | ServerOpCodes opcode; |
| 198 | } keywords[] = { |
| 199 | { "port", sPort }, |
| 200 | { "hostkey", sHostKeyFile }, |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 201 | { "hostdsakey", sHostDSAKeyFile }, |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 202 | { "pidfile", sPidFile }, |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 203 | { "serverkeybits", sServerKeyBits }, |
| 204 | { "logingracetime", sLoginGraceTime }, |
| 205 | { "keyregenerationinterval", sKeyRegenerationTime }, |
| 206 | { "permitrootlogin", sPermitRootLogin }, |
| 207 | { "syslogfacility", sLogFacility }, |
| 208 | { "loglevel", sLogLevel }, |
| 209 | { "rhostsauthentication", sRhostsAuthentication }, |
| 210 | { "rhostsrsaauthentication", sRhostsRSAAuthentication }, |
| 211 | { "rsaauthentication", sRSAAuthentication }, |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 212 | { "dsaauthentication", sDSAAuthentication }, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 213 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 214 | { "kerberosauthentication", sKerberosAuthentication }, |
| 215 | { "kerberosorlocalpasswd", sKerberosOrLocalPasswd }, |
| 216 | { "kerberosticketcleanup", sKerberosTicketCleanup }, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 217 | #endif |
| 218 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 219 | { "kerberostgtpassing", sKerberosTgtPassing }, |
| 220 | { "afstokenpassing", sAFSTokenPassing }, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 221 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 222 | { "passwordauthentication", sPasswordAuthentication }, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 223 | #ifdef SKEY |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 224 | { "skeyauthentication", sSkeyAuthentication }, |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 225 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 226 | { "checkmail", sCheckMail }, |
| 227 | { "listenaddress", sListenAddress }, |
| 228 | { "printmotd", sPrintMotd }, |
| 229 | { "ignorerhosts", sIgnoreRhosts }, |
| 230 | { "ignoreuserknownhosts", sIgnoreUserKnownHosts }, |
| 231 | { "x11forwarding", sX11Forwarding }, |
| 232 | { "x11displayoffset", sX11DisplayOffset }, |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 233 | { "xauthlocation", sXAuthLocation }, |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 234 | { "strictmodes", sStrictModes }, |
| 235 | { "permitemptypasswords", sEmptyPasswd }, |
| 236 | { "uselogin", sUseLogin }, |
| 237 | { "randomseed", sRandomSeedFile }, |
| 238 | { "keepalive", sKeepAlives }, |
| 239 | { "allowusers", sAllowUsers }, |
| 240 | { "denyusers", sDenyUsers }, |
| 241 | { "allowgroups", sAllowGroups }, |
| 242 | { "denygroups", sDenyGroups }, |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 243 | { "ciphers", sCiphers }, |
| 244 | { "protocol", sProtocol }, |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 245 | { "gatewayports", sGatewayPorts }, |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 246 | { "subsystem", sSubsystem }, |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 247 | { "maxstartups", sMaxStartups }, |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 248 | { NULL, 0 } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 249 | }; |
| 250 | |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 251 | /* |
| 252 | * Returns the number of the token pointed to by cp of length len. Never |
| 253 | * returns if the token is not known. |
| 254 | */ |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 255 | |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 256 | static ServerOpCodes |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 257 | parse_token(const char *cp, const char *filename, |
| 258 | int linenum) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 259 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 260 | unsigned int i; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 261 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 262 | for (i = 0; keywords[i].name; i++) |
Damien Miller | 5428f64 | 1999-11-25 11:54:57 +1100 | [diff] [blame] | 263 | if (strcasecmp(cp, keywords[i].name) == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 264 | return keywords[i].opcode; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 265 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 266 | fprintf(stderr, "%s: line %d: Bad configuration option: %s\n", |
| 267 | filename, linenum, cp); |
| 268 | return sBadOption; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 269 | } |
| 270 | |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 271 | /* |
| 272 | * add listen address |
| 273 | */ |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 274 | void |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 275 | add_listen_addr(ServerOptions *options, char *addr) |
| 276 | { |
| 277 | extern int IPv4or6; |
| 278 | struct addrinfo hints, *ai, *aitop; |
| 279 | char strport[NI_MAXSERV]; |
| 280 | int gaierr; |
| 281 | int i; |
| 282 | |
| 283 | if (options->num_ports == 0) |
| 284 | options->ports[options->num_ports++] = SSH_DEFAULT_PORT; |
| 285 | for (i = 0; i < options->num_ports; i++) { |
| 286 | memset(&hints, 0, sizeof(hints)); |
| 287 | hints.ai_family = IPv4or6; |
| 288 | hints.ai_socktype = SOCK_STREAM; |
| 289 | hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0; |
| 290 | snprintf(strport, sizeof strport, "%d", options->ports[i]); |
| 291 | if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0) |
| 292 | fatal("bad addr or host: %s (%s)\n", |
| 293 | addr ? addr : "<NULL>", |
| 294 | gai_strerror(gaierr)); |
| 295 | for (ai = aitop; ai->ai_next; ai = ai->ai_next) |
| 296 | ; |
| 297 | ai->ai_next = options->listen_addrs; |
| 298 | options->listen_addrs = aitop; |
| 299 | } |
| 300 | } |
| 301 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 302 | /* Reads the server configuration file. */ |
| 303 | |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 304 | void |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 305 | read_server_config(ServerOptions *options, const char *filename) |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 306 | { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 307 | FILE *f; |
| 308 | char line[1024]; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 309 | char *cp, **charptr, *arg; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 310 | int linenum, *intptr, value; |
| 311 | int bad_options = 0; |
| 312 | ServerOpCodes opcode; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 313 | int i; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 314 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 315 | f = fopen(filename, "r"); |
| 316 | if (!f) { |
| 317 | perror(filename); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 318 | exit(1); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 319 | } |
| 320 | linenum = 0; |
| 321 | while (fgets(line, sizeof(line), f)) { |
| 322 | linenum++; |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 323 | cp = line; |
| 324 | arg = strdelim(&cp); |
| 325 | /* Ignore leading whitespace */ |
| 326 | if (*arg == '\0') |
| 327 | arg = strdelim(&cp); |
| 328 | if (!*arg || *arg == '#') |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 329 | continue; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 330 | opcode = parse_token(arg, filename, linenum); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 331 | switch (opcode) { |
| 332 | case sBadOption: |
| 333 | bad_options++; |
| 334 | continue; |
| 335 | case sPort: |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 336 | /* ignore ports from configfile if cmdline specifies ports */ |
| 337 | if (options->ports_from_cmdline) |
| 338 | continue; |
| 339 | if (options->listen_addrs != NULL) |
| 340 | fatal("%s line %d: ports must be specified before " |
| 341 | "ListenAdress.\n", filename, linenum); |
| 342 | if (options->num_ports >= MAX_PORTS) |
| 343 | fatal("%s line %d: too many ports.\n", |
Damien Miller | 4af5130 | 2000-04-16 11:18:38 +1000 | [diff] [blame] | 344 | filename, linenum); |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 345 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 346 | if (!arg || *arg == '\0') |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 347 | fatal("%s line %d: missing port number.\n", |
| 348 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 349 | options->ports[options->num_ports++] = atoi(arg); |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 350 | break; |
| 351 | |
| 352 | case sServerKeyBits: |
| 353 | intptr = &options->server_key_bits; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 354 | parse_int: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 355 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 356 | if (!arg || *arg == '\0') { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 357 | fprintf(stderr, "%s line %d: missing integer value.\n", |
| 358 | filename, linenum); |
| 359 | exit(1); |
| 360 | } |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 361 | value = atoi(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 362 | if (*intptr == -1) |
| 363 | *intptr = value; |
| 364 | break; |
Damien Miller | 3226509 | 1999-11-12 11:33:04 +1100 | [diff] [blame] | 365 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 366 | case sLoginGraceTime: |
| 367 | intptr = &options->login_grace_time; |
| 368 | goto parse_int; |
| 369 | |
| 370 | case sKeyRegenerationTime: |
| 371 | intptr = &options->key_regeneration_time; |
| 372 | goto parse_int; |
| 373 | |
| 374 | case sListenAddress: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 375 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 376 | if (!arg || *arg == '\0') |
Damien Miller | 34132e5 | 2000-01-14 15:45:46 +1100 | [diff] [blame] | 377 | fatal("%s line %d: missing inet addr.\n", |
| 378 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 379 | add_listen_addr(options, arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 380 | break; |
| 381 | |
| 382 | case sHostKeyFile: |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 383 | case sHostDSAKeyFile: |
Damien Miller | efb4afe | 2000-04-12 18:45:05 +1000 | [diff] [blame] | 384 | charptr = (opcode == sHostKeyFile ) ? |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 385 | &options->host_key_file : &options->host_dsa_key_file; |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 386 | parse_filename: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 387 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 388 | if (!arg || *arg == '\0') { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 389 | fprintf(stderr, "%s line %d: missing file name.\n", |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 390 | filename, linenum); |
| 391 | exit(1); |
| 392 | } |
| 393 | if (*charptr == NULL) |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 394 | *charptr = tilde_expand_filename(arg, getuid()); |
Damien Miller | 6f83b8e | 2000-05-02 09:23:45 +1000 | [diff] [blame] | 395 | break; |
| 396 | |
| 397 | case sPidFile: |
| 398 | charptr = &options->pid_file; |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 399 | goto parse_filename; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 400 | |
| 401 | case sRandomSeedFile: |
| 402 | fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n", |
| 403 | filename, linenum); |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 404 | arg = strdelim(&cp); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 405 | break; |
| 406 | |
| 407 | case sPermitRootLogin: |
| 408 | intptr = &options->permit_root_login; |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 409 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 410 | if (!arg || *arg == '\0') { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 411 | fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n", |
| 412 | filename, linenum); |
| 413 | exit(1); |
| 414 | } |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 415 | if (strcmp(arg, "without-password") == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 416 | value = 2; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 417 | else if (strcmp(arg, "yes") == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 418 | value = 1; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 419 | else if (strcmp(arg, "no") == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 420 | value = 0; |
| 421 | else { |
| 422 | fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 423 | filename, linenum, arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 424 | exit(1); |
| 425 | } |
| 426 | if (*intptr == -1) |
| 427 | *intptr = value; |
| 428 | break; |
| 429 | |
| 430 | case sIgnoreRhosts: |
| 431 | intptr = &options->ignore_rhosts; |
| 432 | parse_flag: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 433 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 434 | if (!arg || *arg == '\0') { |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 435 | fprintf(stderr, "%s line %d: missing yes/no argument.\n", |
| 436 | filename, linenum); |
| 437 | exit(1); |
| 438 | } |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 439 | if (strcmp(arg, "yes") == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 440 | value = 1; |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 441 | else if (strcmp(arg, "no") == 0) |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 442 | value = 0; |
| 443 | else { |
| 444 | fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 445 | filename, linenum, arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 446 | exit(1); |
| 447 | } |
| 448 | if (*intptr == -1) |
| 449 | *intptr = value; |
| 450 | break; |
| 451 | |
| 452 | case sIgnoreUserKnownHosts: |
| 453 | intptr = &options->ignore_user_known_hosts; |
Damien Miller | 98c7ad6 | 2000-03-09 21:27:49 +1100 | [diff] [blame] | 454 | goto parse_flag; |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 455 | |
| 456 | case sRhostsAuthentication: |
| 457 | intptr = &options->rhosts_authentication; |
| 458 | goto parse_flag; |
| 459 | |
| 460 | case sRhostsRSAAuthentication: |
| 461 | intptr = &options->rhosts_rsa_authentication; |
| 462 | goto parse_flag; |
| 463 | |
| 464 | case sRSAAuthentication: |
| 465 | intptr = &options->rsa_authentication; |
| 466 | goto parse_flag; |
| 467 | |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 468 | case sDSAAuthentication: |
| 469 | intptr = &options->dsa_authentication; |
| 470 | goto parse_flag; |
| 471 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 472 | #ifdef KRB4 |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 473 | case sKerberosAuthentication: |
| 474 | intptr = &options->kerberos_authentication; |
| 475 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 476 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 477 | case sKerberosOrLocalPasswd: |
| 478 | intptr = &options->kerberos_or_local_passwd; |
| 479 | goto parse_flag; |
| 480 | |
| 481 | case sKerberosTicketCleanup: |
| 482 | intptr = &options->kerberos_ticket_cleanup; |
| 483 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 484 | #endif |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 485 | |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 486 | #ifdef AFS |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 487 | case sKerberosTgtPassing: |
| 488 | intptr = &options->kerberos_tgt_passing; |
| 489 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 490 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 491 | case sAFSTokenPassing: |
| 492 | intptr = &options->afs_token_passing; |
| 493 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 494 | #endif |
| 495 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 496 | case sPasswordAuthentication: |
| 497 | intptr = &options->password_authentication; |
| 498 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 499 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 500 | case sCheckMail: |
| 501 | intptr = &options->check_mail; |
| 502 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 503 | |
| 504 | #ifdef SKEY |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 505 | case sSkeyAuthentication: |
| 506 | intptr = &options->skey_authentication; |
| 507 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 508 | #endif |
| 509 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 510 | case sPrintMotd: |
| 511 | intptr = &options->print_motd; |
| 512 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 513 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 514 | case sX11Forwarding: |
| 515 | intptr = &options->x11_forwarding; |
| 516 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 517 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 518 | case sX11DisplayOffset: |
| 519 | intptr = &options->x11_display_offset; |
| 520 | goto parse_int; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 521 | |
Damien Miller | d3a1857 | 2000-06-07 19:55:44 +1000 | [diff] [blame] | 522 | case sXAuthLocation: |
| 523 | charptr = &options->xauth_location; |
| 524 | goto parse_filename; |
| 525 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 526 | case sStrictModes: |
| 527 | intptr = &options->strict_modes; |
| 528 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 529 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 530 | case sKeepAlives: |
| 531 | intptr = &options->keepalives; |
| 532 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 533 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 534 | case sEmptyPasswd: |
| 535 | intptr = &options->permit_empty_passwd; |
| 536 | goto parse_flag; |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 537 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 538 | case sUseLogin: |
| 539 | intptr = &options->use_login; |
| 540 | goto parse_flag; |
Damien Miller | 5ce662a | 1999-11-11 17:57:39 +1100 | [diff] [blame] | 541 | |
Damien Miller | e247cc4 | 2000-05-07 12:03:14 +1000 | [diff] [blame] | 542 | case sGatewayPorts: |
| 543 | intptr = &options->gateway_ports; |
| 544 | goto parse_flag; |
| 545 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 546 | case sLogFacility: |
| 547 | intptr = (int *) &options->log_facility; |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 548 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 549 | value = log_facility_number(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 550 | if (value == (SyslogFacility) - 1) |
| 551 | fatal("%.200s line %d: unsupported log facility '%s'\n", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 552 | filename, linenum, arg ? arg : "<NONE>"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 553 | if (*intptr == -1) |
| 554 | *intptr = (SyslogFacility) value; |
| 555 | break; |
| 556 | |
| 557 | case sLogLevel: |
| 558 | intptr = (int *) &options->log_level; |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 559 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 560 | value = log_level_number(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 561 | if (value == (LogLevel) - 1) |
| 562 | fatal("%.200s line %d: unsupported log level '%s'\n", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 563 | filename, linenum, arg ? arg : "<NONE>"); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 564 | if (*intptr == -1) |
| 565 | *intptr = (LogLevel) value; |
| 566 | break; |
| 567 | |
| 568 | case sAllowUsers: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 569 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 570 | if (options->num_allow_users >= MAX_ALLOW_USERS) |
| 571 | fatal("%s line %d: too many allow users.\n", |
| 572 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 573 | options->allow_users[options->num_allow_users++] = xstrdup(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 574 | } |
| 575 | break; |
| 576 | |
| 577 | case sDenyUsers: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 578 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 579 | if (options->num_deny_users >= MAX_DENY_USERS) |
| 580 | fatal( "%s line %d: too many deny users.\n", |
| 581 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 582 | options->deny_users[options->num_deny_users++] = xstrdup(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 583 | } |
| 584 | break; |
| 585 | |
| 586 | case sAllowGroups: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 587 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 588 | if (options->num_allow_groups >= MAX_ALLOW_GROUPS) |
| 589 | fatal("%s line %d: too many allow groups.\n", |
| 590 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 591 | options->allow_groups[options->num_allow_groups++] = xstrdup(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 592 | } |
| 593 | break; |
| 594 | |
| 595 | case sDenyGroups: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 596 | while ((arg = strdelim(&cp)) && *arg != '\0') { |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 597 | if (options->num_deny_groups >= MAX_DENY_GROUPS) |
| 598 | fatal("%s line %d: too many deny groups.\n", |
| 599 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 600 | options->deny_groups[options->num_deny_groups++] = xstrdup(arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 601 | } |
| 602 | break; |
| 603 | |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 604 | case sCiphers: |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 605 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 606 | if (!arg || *arg == '\0') |
Damien Miller | b1715dc | 2000-05-30 13:44:51 +1000 | [diff] [blame] | 607 | fatal("%s line %d: Missing argument.", filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 608 | if (!ciphers_valid(arg)) |
Damien Miller | 30c3d42 | 2000-05-09 11:02:59 +1000 | [diff] [blame] | 609 | fatal("%s line %d: Bad SSH2 cipher spec '%s'.", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 610 | filename, linenum, arg ? arg : "<NONE>"); |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 611 | if (options->ciphers == NULL) |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 612 | options->ciphers = xstrdup(arg); |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 613 | break; |
| 614 | |
| 615 | case sProtocol: |
| 616 | intptr = &options->protocol; |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 617 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 618 | if (!arg || *arg == '\0') |
Damien Miller | b1715dc | 2000-05-30 13:44:51 +1000 | [diff] [blame] | 619 | fatal("%s line %d: Missing argument.", filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 620 | value = proto_spec(arg); |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 621 | if (value == SSH_PROTO_UNKNOWN) |
| 622 | fatal("%s line %d: Bad protocol spec '%s'.", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 623 | filename, linenum, arg ? arg : "<NONE>"); |
Damien Miller | 7892879 | 2000-04-12 20:17:38 +1000 | [diff] [blame] | 624 | if (*intptr == SSH_PROTO_UNKNOWN) |
| 625 | *intptr = value; |
| 626 | break; |
| 627 | |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 628 | case sSubsystem: |
| 629 | if(options->num_subsystems >= MAX_SUBSYSTEMS) { |
| 630 | fatal("%s line %d: too many subsystems defined.", |
| 631 | filename, linenum); |
| 632 | } |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 633 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 634 | if (!arg || *arg == '\0') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 635 | fatal("%s line %d: Missing subsystem name.", |
| 636 | filename, linenum); |
| 637 | for (i = 0; i < options->num_subsystems; i++) |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 638 | if(strcmp(arg, options->subsystem_name[i]) == 0) |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 639 | fatal("%s line %d: Subsystem '%s' already defined.", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 640 | filename, linenum, arg); |
| 641 | options->subsystem_name[options->num_subsystems] = xstrdup(arg); |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 642 | arg = strdelim(&cp); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 643 | if (!arg || *arg == '\0') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 644 | fatal("%s line %d: Missing subsystem command.", |
| 645 | filename, linenum); |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 646 | options->subsystem_command[options->num_subsystems] = xstrdup(arg); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 647 | options->num_subsystems++; |
| 648 | break; |
| 649 | |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 650 | case sMaxStartups: |
Damien Miller | 942da03 | 2000-08-18 13:59:06 +1000 | [diff] [blame] | 651 | arg = strdelim(&cp); |
| 652 | if (!arg || *arg == '\0') |
| 653 | fatal("%s line %d: Missing MaxStartups spec.", |
| 654 | filename, linenum); |
| 655 | if (sscanf(arg, "%d:%d:%d", |
| 656 | &options->max_startups_begin, |
| 657 | &options->max_startups_rate, |
| 658 | &options->max_startups) == 3) { |
| 659 | if (options->max_startups_begin > |
| 660 | options->max_startups || |
| 661 | options->max_startups_rate > 100 || |
| 662 | options->max_startups_rate < 1) |
| 663 | fatal("%s line %d: Illegal MaxStartups spec.", |
| 664 | filename, linenum); |
| 665 | break; |
| 666 | } |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 667 | intptr = &options->max_startups; |
| 668 | goto parse_int; |
| 669 | |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 670 | default: |
| 671 | fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n", |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 672 | filename, linenum, arg, opcode); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 673 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 674 | } |
Damien Miller | be484b5 | 2000-07-15 14:14:16 +1000 | [diff] [blame] | 675 | if ((arg = strdelim(&cp)) != NULL && *arg != '\0') { |
Damien Miller | 3702396 | 2000-07-11 17:31:38 +1000 | [diff] [blame] | 676 | fprintf(stderr, |
| 677 | "%s line %d: garbage at end of line; \"%.200s\".\n", |
| 678 | filename, linenum, arg); |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 679 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 680 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 681 | } |
Damien Miller | 95def09 | 1999-11-25 00:26:21 +1100 | [diff] [blame] | 682 | fclose(f); |
| 683 | if (bad_options > 0) { |
| 684 | fprintf(stderr, "%s: terminating, %d bad configuration options\n", |
| 685 | filename, bad_options); |
| 686 | exit(1); |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 687 | } |
Damien Miller | d4a8b7e | 1999-10-27 13:42:43 +1000 | [diff] [blame] | 688 | } |