Annotation of src/usr.bin/ssh/servconf.c, Revision 1.341
1.226 dtucker 1:
1.341 ! djm 2: /* $OpenBSD: servconf.c,v 1.340 2018/08/12 20:19:13 djm Exp $ */
1.1 deraadt 3: /*
1.26 deraadt 4: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
5: * All rights reserved
1.34 markus 6: *
1.51 deraadt 7: * As far as I am concerned, the code I have written for this software
8: * can be used freely for any purpose. Any derived versions of this
9: * software must be clearly marked as such, and if the derived work is
10: * incompatible with the protocol description in the RFC file, it must be
11: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 12: */
1.1 deraadt 13:
1.152 stevesk 14: #include <sys/types.h>
15: #include <sys/socket.h>
1.179 djm 16: #include <sys/queue.h>
1.315 djm 17: #include <sys/sysctl.h>
1.154 stevesk 18:
1.213 djm 19: #include <netinet/in.h>
20: #include <netinet/ip.h>
1.315 djm 21: #include <net/route.h>
1.213 djm 22:
1.235 dtucker 23: #include <ctype.h>
1.154 stevesk 24: #include <netdb.h>
1.165 dtucker 25: #include <pwd.h>
1.162 stevesk 26: #include <stdio.h>
1.161 stevesk 27: #include <stdlib.h>
1.160 stevesk 28: #include <string.h>
1.164 deraadt 29: #include <signal.h>
1.155 stevesk 30: #include <unistd.h>
1.259 deraadt 31: #include <limits.h>
1.164 deraadt 32: #include <stdarg.h>
1.182 dtucker 33: #include <errno.h>
1.236 dtucker 34: #include <util.h>
1.1 deraadt 35:
1.164 deraadt 36: #include "xmalloc.h"
1.1 deraadt 37: #include "ssh.h"
1.62 markus 38: #include "log.h"
1.338 markus 39: #include "sshbuf.h"
1.251 millert 40: #include "misc.h"
1.1 deraadt 41: #include "servconf.h"
1.33 markus 42: #include "compat.h"
1.60 markus 43: #include "pathnames.h"
1.62 markus 44: #include "cipher.h"
1.339 markus 45: #include "sshkey.h"
1.66 markus 46: #include "kex.h"
47: #include "mac.h"
1.153 dtucker 48: #include "match.h"
1.156 dtucker 49: #include "channels.h"
1.165 dtucker 50: #include "groupaccess.h"
1.226 dtucker 51: #include "canohost.h"
52: #include "packet.h"
1.338 markus 53: #include "ssherr.h"
1.232 djm 54: #include "hostfile.h"
55: #include "auth.h"
1.252 djm 56: #include "myproposal.h"
1.256 djm 57: #include "digest.h"
1.1 deraadt 58:
1.315 djm 59: static void add_listen_addr(ServerOptions *, const char *,
60: const char *, int);
61: static void add_one_listen_addr(ServerOptions *, const char *,
62: const char *, int);
1.29 markus 63:
1.102 provos 64: /* Use of privilege separation or not */
65: extern int use_privsep;
1.338 markus 66: extern struct sshbuf *cfg;
1.62 markus 67:
1.1 deraadt 68: /* Initializes the server options to their default values. */
69:
1.34 markus 70: void
1.25 markus 71: initialize_server_options(ServerOptions *options)
1.1 deraadt 72: {
1.25 markus 73: memset(options, 0, sizeof(*options));
1.29 markus 74: options->num_ports = 0;
75: options->ports_from_cmdline = 0;
1.266 dtucker 76: options->queued_listen_addrs = NULL;
77: options->num_queued_listens = 0;
1.29 markus 78: options->listen_addrs = NULL;
1.315 djm 79: options->num_listen_addrs = 0;
1.138 djm 80: options->address_family = -1;
1.316 djm 81: options->routing_domain = NULL;
1.54 markus 82: options->num_host_key_files = 0;
1.203 djm 83: options->num_host_cert_files = 0;
1.240 markus 84: options->host_key_agent = NULL;
1.36 markus 85: options->pid_file = NULL;
1.25 markus 86: options->login_grace_time = -1;
1.279 chris 87: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 88: options->ignore_rhosts = -1;
89: options->ignore_user_known_hosts = -1;
90: options->print_motd = -1;
1.72 stevesk 91: options->print_lastlog = -1;
1.25 markus 92: options->x11_forwarding = -1;
93: options->x11_display_offset = -1;
1.99 stevesk 94: options->x11_use_localhost = -1;
1.244 djm 95: options->permit_tty = -1;
1.250 djm 96: options->permit_user_rc = -1;
1.42 markus 97: options->xauth_location = NULL;
1.25 markus 98: options->strict_modes = -1;
1.129 markus 99: options->tcp_keep_alive = -1;
1.101 markus 100: options->log_facility = SYSLOG_FACILITY_NOT_SET;
101: options->log_level = SYSLOG_LEVEL_NOT_SET;
1.75 markus 102: options->hostbased_authentication = -1;
103: options->hostbased_uses_name_from_packet_only = -1;
1.258 djm 104: options->hostbased_key_types = NULL;
1.276 markus 105: options->hostkeyalgorithms = NULL;
1.54 markus 106: options->pubkey_authentication = -1;
1.258 djm 107: options->pubkey_key_types = NULL;
1.25 markus 108: options->kerberos_authentication = -1;
109: options->kerberos_or_local_passwd = -1;
110: options->kerberos_ticket_cleanup = -1;
1.130 jakob 111: options->kerberos_get_afs_token = -1;
1.125 markus 112: options->gss_authentication=-1;
113: options->gss_cleanup_creds = -1;
1.271 djm 114: options->gss_strict_acceptor = -1;
1.25 markus 115: options->password_authentication = -1;
1.52 markus 116: options->kbd_interactive_authentication = -1;
1.80 markus 117: options->challenge_response_authentication = -1;
1.25 markus 118: options->permit_empty_passwd = -1;
1.113 markus 119: options->permit_user_env = -1;
1.334 djm 120: options->permit_user_env_whitelist = NULL;
1.111 markus 121: options->compression = -1;
1.235 dtucker 122: options->rekey_limit = -1;
123: options->rekey_interval = -1;
1.53 markus 124: options->allow_tcp_forwarding = -1;
1.251 millert 125: options->allow_streamlocal_forwarding = -1;
1.178 pyr 126: options->allow_agent_forwarding = -1;
1.25 markus 127: options->num_allow_users = 0;
128: options->num_deny_users = 0;
129: options->num_allow_groups = 0;
130: options->num_deny_groups = 0;
1.33 markus 131: options->ciphers = NULL;
1.66 markus 132: options->macs = NULL;
1.211 djm 133: options->kex_algorithms = NULL;
1.341 ! djm 134: options->ca_sign_algorithms = NULL;
1.251 millert 135: options->fwd_opts.gateway_ports = -1;
136: options->fwd_opts.streamlocal_bind_mask = (mode_t)-1;
137: options->fwd_opts.streamlocal_bind_unlink = -1;
1.43 jakob 138: options->num_subsystems = 0;
1.50 markus 139: options->max_startups_begin = -1;
140: options->max_startups_rate = -1;
1.46 markus 141: options->max_startups = -1;
1.133 dtucker 142: options->max_authtries = -1;
1.180 djm 143: options->max_sessions = -1;
1.57 markus 144: options->banner = NULL;
1.122 markus 145: options->use_dns = -1;
1.77 beck 146: options->client_alive_interval = -1;
147: options->client_alive_count_max = -1;
1.219 djm 148: options->num_authkeys_files = 0;
1.131 djm 149: options->num_accept_env = 0;
1.332 djm 150: options->num_setenv = 0;
1.145 reyk 151: options->permit_tun = -1;
1.310 djm 152: options->permitted_opens = NULL;
1.330 djm 153: options->permitted_listens = NULL;
1.158 dtucker 154: options->adm_forced_command = NULL;
1.176 djm 155: options->chroot_directory = NULL;
1.231 djm 156: options->authorized_keys_command = NULL;
157: options->authorized_keys_command_user = NULL;
1.204 djm 158: options->revoked_keys_file = NULL;
159: options->trusted_user_ca_keys = NULL;
1.208 djm 160: options->authorized_principals_file = NULL;
1.270 djm 161: options->authorized_principals_command = NULL;
162: options->authorized_principals_command_user = NULL;
1.213 djm 163: options->ip_qos_interactive = -1;
164: options->ip_qos_bulk = -1;
1.225 djm 165: options->version_addendum = NULL;
1.256 djm 166: options->fingerprint_hash = -1;
1.301 djm 167: options->disable_forwarding = -1;
1.309 djm 168: options->expose_userauth_info = -1;
1.1 deraadt 169: }
170:
1.257 djm 171: /* Returns 1 if a string option is unset or set to "none" or 0 otherwise. */
172: static int
173: option_clear_or_none(const char *o)
174: {
175: return o == NULL || strcasecmp(o, "none") == 0;
176: }
177:
1.282 djm 178: static void
179: assemble_algorithms(ServerOptions *o)
180: {
1.341 ! djm 181: char *all_cipher, *all_mac, *all_kex, *all_key, *all_sig;
1.340 djm 182: int r;
1.335 djm 183:
184: all_cipher = cipher_alg_list(',', 0);
185: all_mac = mac_alg_list(',');
186: all_kex = kex_alg_list(',');
187: all_key = sshkey_alg_list(0, 0, 1, ',');
1.341 ! djm 188: all_sig = sshkey_alg_list(0, 1, 1, ',');
1.340 djm 189: #define ASSEMBLE(what, defaults, all) \
190: do { \
191: if ((r = kex_assemble_names(&o->what, defaults, all)) != 0) \
192: fatal("%s: %s: %s", __func__, #what, ssh_err(r)); \
193: } while (0)
194: ASSEMBLE(ciphers, KEX_SERVER_ENCRYPT, all_cipher);
195: ASSEMBLE(macs, KEX_SERVER_MAC, all_mac);
196: ASSEMBLE(kex_algorithms, KEX_SERVER_KEX, all_kex);
197: ASSEMBLE(hostkeyalgorithms, KEX_DEFAULT_PK_ALG, all_key);
198: ASSEMBLE(hostbased_key_types, KEX_DEFAULT_PK_ALG, all_key);
199: ASSEMBLE(pubkey_key_types, KEX_DEFAULT_PK_ALG, all_key);
1.341 ! djm 200: ASSEMBLE(ca_sign_algorithms, SSH_ALLOWED_CA_SIGALGS, all_sig);
1.340 djm 201: #undef ASSEMBLE
1.335 djm 202: free(all_cipher);
203: free(all_mac);
204: free(all_kex);
205: free(all_key);
1.341 ! djm 206: free(all_sig);
1.282 djm 207: }
208:
1.314 djm 209: static void
210: array_append(const char *file, const int line, const char *directive,
211: char ***array, u_int *lp, const char *s)
212: {
213:
214: if (*lp >= INT_MAX)
215: fatal("%s line %d: Too many %s entries", file, line, directive);
216:
217: *array = xrecallocarray(*array, *lp, *lp + 1, sizeof(**array));
218: (*array)[*lp] = xstrdup(s);
219: (*lp)++;
220: }
221:
222: void
223: servconf_add_hostkey(const char *file, const int line,
224: ServerOptions *options, const char *path)
225: {
226: char *apath = derelativise_path(path);
227:
228: array_append(file, line, "HostKey",
229: &options->host_key_files, &options->num_host_key_files, apath);
230: free(apath);
231: }
232:
233: void
234: servconf_add_hostcert(const char *file, const int line,
235: ServerOptions *options, const char *path)
236: {
237: char *apath = derelativise_path(path);
238:
239: array_append(file, line, "HostCertificate",
240: &options->host_cert_files, &options->num_host_cert_files, apath);
241: free(apath);
242: }
243:
1.34 markus 244: void
1.25 markus 245: fill_default_server_options(ServerOptions *options)
1.1 deraadt 246: {
1.314 djm 247: u_int i;
1.257 djm 248:
1.54 markus 249: if (options->num_host_key_files == 0) {
1.293 naddy 250: /* fill default hostkeys */
1.314 djm 251: servconf_add_hostkey("[default]", 0, options,
252: _PATH_HOST_RSA_KEY_FILE);
253: servconf_add_hostkey("[default]", 0, options,
254: _PATH_HOST_ECDSA_KEY_FILE);
255: servconf_add_hostkey("[default]", 0, options,
256: _PATH_HOST_ED25519_KEY_FILE);
1.326 markus 257: #ifdef WITH_XMSS
1.325 markus 258: servconf_add_hostkey("[default]", 0, options,
259: _PATH_HOST_XMSS_KEY_FILE);
1.326 markus 260: #endif /* WITH_XMSS */
1.54 markus 261: }
1.203 djm 262: /* No certificates by default */
1.29 markus 263: if (options->num_ports == 0)
264: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
1.266 dtucker 265: if (options->address_family == -1)
266: options->address_family = AF_UNSPEC;
1.29 markus 267: if (options->listen_addrs == NULL)
1.315 djm 268: add_listen_addr(options, NULL, NULL, 0);
1.36 markus 269: if (options->pid_file == NULL)
1.257 djm 270: options->pid_file = xstrdup(_PATH_SSH_DAEMON_PID_FILE);
1.25 markus 271: if (options->login_grace_time == -1)
1.115 stevesk 272: options->login_grace_time = 120;
1.67 markus 273: if (options->permit_root_login == PERMIT_NOT_SET)
1.279 chris 274: options->permit_root_login = PERMIT_NO_PASSWD;
1.25 markus 275: if (options->ignore_rhosts == -1)
1.30 markus 276: options->ignore_rhosts = 1;
1.25 markus 277: if (options->ignore_user_known_hosts == -1)
278: options->ignore_user_known_hosts = 0;
279: if (options->print_motd == -1)
280: options->print_motd = 1;
1.72 stevesk 281: if (options->print_lastlog == -1)
282: options->print_lastlog = 1;
1.25 markus 283: if (options->x11_forwarding == -1)
1.30 markus 284: options->x11_forwarding = 0;
1.25 markus 285: if (options->x11_display_offset == -1)
1.30 markus 286: options->x11_display_offset = 10;
1.99 stevesk 287: if (options->x11_use_localhost == -1)
288: options->x11_use_localhost = 1;
1.42 markus 289: if (options->xauth_location == NULL)
1.257 djm 290: options->xauth_location = xstrdup(_PATH_XAUTH);
1.244 djm 291: if (options->permit_tty == -1)
292: options->permit_tty = 1;
1.250 djm 293: if (options->permit_user_rc == -1)
294: options->permit_user_rc = 1;
1.25 markus 295: if (options->strict_modes == -1)
296: options->strict_modes = 1;
1.129 markus 297: if (options->tcp_keep_alive == -1)
298: options->tcp_keep_alive = 1;
1.101 markus 299: if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
1.25 markus 300: options->log_facility = SYSLOG_FACILITY_AUTH;
1.101 markus 301: if (options->log_level == SYSLOG_LEVEL_NOT_SET)
1.58 markus 302: options->log_level = SYSLOG_LEVEL_INFO;
1.75 markus 303: if (options->hostbased_authentication == -1)
304: options->hostbased_authentication = 0;
305: if (options->hostbased_uses_name_from_packet_only == -1)
306: options->hostbased_uses_name_from_packet_only = 0;
1.54 markus 307: if (options->pubkey_authentication == -1)
308: options->pubkey_authentication = 1;
1.25 markus 309: if (options->kerberos_authentication == -1)
1.107 markus 310: options->kerberos_authentication = 0;
1.25 markus 311: if (options->kerberos_or_local_passwd == -1)
312: options->kerberos_or_local_passwd = 1;
313: if (options->kerberos_ticket_cleanup == -1)
314: options->kerberos_ticket_cleanup = 1;
1.130 jakob 315: if (options->kerberos_get_afs_token == -1)
316: options->kerberos_get_afs_token = 0;
1.125 markus 317: if (options->gss_authentication == -1)
318: options->gss_authentication = 0;
319: if (options->gss_cleanup_creds == -1)
320: options->gss_cleanup_creds = 1;
1.271 djm 321: if (options->gss_strict_acceptor == -1)
1.302 djm 322: options->gss_strict_acceptor = 1;
1.25 markus 323: if (options->password_authentication == -1)
324: options->password_authentication = 1;
1.52 markus 325: if (options->kbd_interactive_authentication == -1)
326: options->kbd_interactive_authentication = 0;
1.80 markus 327: if (options->challenge_response_authentication == -1)
328: options->challenge_response_authentication = 1;
1.25 markus 329: if (options->permit_empty_passwd == -1)
1.30 markus 330: options->permit_empty_passwd = 0;
1.334 djm 331: if (options->permit_user_env == -1) {
1.113 markus 332: options->permit_user_env = 0;
1.334 djm 333: options->permit_user_env_whitelist = NULL;
334: }
1.111 markus 335: if (options->compression == -1)
1.337 sf 336: options->compression = COMP_DELAYED;
1.235 dtucker 337: if (options->rekey_limit == -1)
338: options->rekey_limit = 0;
339: if (options->rekey_interval == -1)
340: options->rekey_interval = 0;
1.53 markus 341: if (options->allow_tcp_forwarding == -1)
1.233 djm 342: options->allow_tcp_forwarding = FORWARD_ALLOW;
1.251 millert 343: if (options->allow_streamlocal_forwarding == -1)
344: options->allow_streamlocal_forwarding = FORWARD_ALLOW;
1.178 pyr 345: if (options->allow_agent_forwarding == -1)
346: options->allow_agent_forwarding = 1;
1.251 millert 347: if (options->fwd_opts.gateway_ports == -1)
348: options->fwd_opts.gateway_ports = 0;
1.46 markus 349: if (options->max_startups == -1)
1.234 dtucker 350: options->max_startups = 100;
1.50 markus 351: if (options->max_startups_rate == -1)
1.234 dtucker 352: options->max_startups_rate = 30; /* 30% */
1.50 markus 353: if (options->max_startups_begin == -1)
1.234 dtucker 354: options->max_startups_begin = 10;
1.133 dtucker 355: if (options->max_authtries == -1)
356: options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
1.180 djm 357: if (options->max_sessions == -1)
358: options->max_sessions = DEFAULT_SESSIONS_MAX;
1.122 markus 359: if (options->use_dns == -1)
1.260 deraadt 360: options->use_dns = 0;
1.77 beck 361: if (options->client_alive_interval == -1)
1.95 deraadt 362: options->client_alive_interval = 0;
1.77 beck 363: if (options->client_alive_count_max == -1)
364: options->client_alive_count_max = 3;
1.219 djm 365: if (options->num_authkeys_files == 0) {
1.314 djm 366: array_append("[default]", 0, "AuthorizedKeysFiles",
367: &options->authorized_keys_files,
368: &options->num_authkeys_files,
369: _PATH_SSH_USER_PERMITTED_KEYS);
370: array_append("[default]", 0, "AuthorizedKeysFiles",
371: &options->authorized_keys_files,
372: &options->num_authkeys_files,
373: _PATH_SSH_USER_PERMITTED_KEYS2);
1.219 djm 374: }
1.145 reyk 375: if (options->permit_tun == -1)
1.146 reyk 376: options->permit_tun = SSH_TUNMODE_NO;
1.213 djm 377: if (options->ip_qos_interactive == -1)
1.327 job 378: options->ip_qos_interactive = IPTOS_DSCP_AF21;
1.213 djm 379: if (options->ip_qos_bulk == -1)
1.327 job 380: options->ip_qos_bulk = IPTOS_DSCP_CS1;
1.225 djm 381: if (options->version_addendum == NULL)
382: options->version_addendum = xstrdup("");
1.251 millert 383: if (options->fwd_opts.streamlocal_bind_mask == (mode_t)-1)
384: options->fwd_opts.streamlocal_bind_mask = 0177;
385: if (options->fwd_opts.streamlocal_bind_unlink == -1)
386: options->fwd_opts.streamlocal_bind_unlink = 0;
1.256 djm 387: if (options->fingerprint_hash == -1)
388: options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
1.301 djm 389: if (options->disable_forwarding == -1)
390: options->disable_forwarding = 0;
1.309 djm 391: if (options->expose_userauth_info == -1)
392: options->expose_userauth_info = 0;
1.277 djm 393:
1.282 djm 394: assemble_algorithms(options);
1.277 djm 395:
1.285 djm 396: /* Turn privilege separation and sandboxing on by default */
1.102 provos 397: if (use_privsep == -1)
1.285 djm 398: use_privsep = PRIVSEP_ON;
1.257 djm 399:
400: #define CLEAR_ON_NONE(v) \
401: do { \
402: if (option_clear_or_none(v)) { \
403: free(v); \
404: v = NULL; \
405: } \
406: } while(0)
407: CLEAR_ON_NONE(options->pid_file);
408: CLEAR_ON_NONE(options->xauth_location);
409: CLEAR_ON_NONE(options->banner);
410: CLEAR_ON_NONE(options->trusted_user_ca_keys);
411: CLEAR_ON_NONE(options->revoked_keys_file);
1.267 djm 412: CLEAR_ON_NONE(options->authorized_principals_file);
1.283 djm 413: CLEAR_ON_NONE(options->adm_forced_command);
414: CLEAR_ON_NONE(options->chroot_directory);
1.316 djm 415: CLEAR_ON_NONE(options->routing_domain);
1.257 djm 416: for (i = 0; i < options->num_host_key_files; i++)
417: CLEAR_ON_NONE(options->host_key_files[i]);
418: for (i = 0; i < options->num_host_cert_files; i++)
419: CLEAR_ON_NONE(options->host_cert_files[i]);
420: #undef CLEAR_ON_NONE
1.291 djm 421:
422: /* Similar handling for AuthenticationMethods=any */
423: if (options->num_auth_methods == 1 &&
424: strcmp(options->auth_methods[0], "any") == 0) {
425: free(options->auth_methods[0]);
426: options->auth_methods[0] = NULL;
427: options->num_auth_methods = 0;
428: }
429:
1.1 deraadt 430: }
431:
432: /* Keyword tokens. */
1.25 markus 433: typedef enum {
434: sBadOption, /* == unknown option */
1.293 naddy 435: sPort, sHostKeyFile, sLoginGraceTime,
436: sPermitRootLogin, sLogFacility, sLogLevel,
1.25 markus 437: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.323 dtucker 438: sKerberosGetAFSToken, sChallengeResponseAuthentication,
1.138 djm 439: sPasswordAuthentication, sKbdInteractiveAuthentication,
440: sListenAddress, sAddressFamily,
1.72 stevesk 441: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
1.99 stevesk 442: sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
1.244 djm 443: sPermitTTY, sStrictModes, sEmptyPasswd, sTCPKeepAlive,
1.294 djm 444: sPermitUserEnvironment, sAllowTcpForwarding, sCompression,
1.235 dtucker 445: sRekeyLimit, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.293 naddy 446: sIgnoreUserKnownHosts, sCiphers, sMacs, sPidFile,
1.258 djm 447: sGatewayPorts, sPubkeyAuthentication, sPubkeyAcceptedKeyTypes,
448: sXAuthLocation, sSubsystem, sMaxStartups, sMaxAuthTries, sMaxSessions,
1.122 markus 449: sBanner, sUseDNS, sHostbasedAuthentication,
1.258 djm 450: sHostbasedUsesNameFromPacketOnly, sHostbasedAcceptedKeyTypes,
1.276 markus 451: sHostKeyAlgorithms,
1.258 djm 452: sClientAliveInterval, sClientAliveCountMax, sAuthorizedKeysFile,
1.271 djm 453: sGssAuthentication, sGssCleanupCreds, sGssStrictAcceptor,
1.332 djm 454: sAcceptEnv, sSetEnv, sPermitTunnel,
1.330 djm 455: sMatch, sPermitOpen, sPermitListen, sForceCommand, sChrootDirectory,
1.200 dtucker 456: sUsePrivilegeSeparation, sAllowAgentForwarding,
1.249 djm 457: sHostCertificate,
1.208 djm 458: sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile,
1.270 djm 459: sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser,
1.341 ! djm 460: sKexAlgorithms, sCASignatureAlgorithms, sIPQoS, sVersionAddendum,
1.231 djm 461: sAuthorizedKeysCommand, sAuthorizedKeysCommandUser,
1.250 djm 462: sAuthenticationMethods, sHostKeyAgent, sPermitUserRC,
1.251 millert 463: sStreamLocalBindMask, sStreamLocalBindUnlink,
1.301 djm 464: sAllowStreamLocalForwarding, sFingerprintHash, sDisableForwarding,
1.316 djm 465: sExposeAuthInfo, sRDomain,
1.295 djm 466: sDeprecated, sIgnore, sUnsupported
1.1 deraadt 467: } ServerOpCodes;
468:
1.153 dtucker 469: #define SSHCFG_GLOBAL 0x01 /* allowed in main section of sshd_config */
470: #define SSHCFG_MATCH 0x02 /* allowed inside a Match section */
471: #define SSHCFG_ALL (SSHCFG_GLOBAL|SSHCFG_MATCH)
472:
1.1 deraadt 473: /* Textual representation of the tokens. */
1.25 markus 474: static struct {
475: const char *name;
476: ServerOpCodes opcode;
1.153 dtucker 477: u_int flags;
1.25 markus 478: } keywords[] = {
1.153 dtucker 479: { "port", sPort, SSHCFG_GLOBAL },
480: { "hostkey", sHostKeyFile, SSHCFG_GLOBAL },
481: { "hostdsakey", sHostKeyFile, SSHCFG_GLOBAL }, /* alias */
1.240 markus 482: { "hostkeyagent", sHostKeyAgent, SSHCFG_GLOBAL },
1.153 dtucker 483: { "pidfile", sPidFile, SSHCFG_GLOBAL },
1.293 naddy 484: { "serverkeybits", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 485: { "logingracetime", sLoginGraceTime, SSHCFG_GLOBAL },
1.293 naddy 486: { "keyregenerationinterval", sDeprecated, SSHCFG_GLOBAL },
1.175 dtucker 487: { "permitrootlogin", sPermitRootLogin, SSHCFG_ALL },
1.153 dtucker 488: { "syslogfacility", sLogFacility, SSHCFG_GLOBAL },
1.308 djm 489: { "loglevel", sLogLevel, SSHCFG_ALL },
1.153 dtucker 490: { "rhostsauthentication", sDeprecated, SSHCFG_GLOBAL },
1.293 naddy 491: { "rhostsrsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 492: { "hostbasedauthentication", sHostbasedAuthentication, SSHCFG_ALL },
1.209 djm 493: { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly, SSHCFG_ALL },
1.258 djm 494: { "hostbasedacceptedkeytypes", sHostbasedAcceptedKeyTypes, SSHCFG_ALL },
1.276 markus 495: { "hostkeyalgorithms", sHostKeyAlgorithms, SSHCFG_GLOBAL },
1.293 naddy 496: { "rsaauthentication", sDeprecated, SSHCFG_ALL },
1.168 dtucker 497: { "pubkeyauthentication", sPubkeyAuthentication, SSHCFG_ALL },
1.258 djm 498: { "pubkeyacceptedkeytypes", sPubkeyAcceptedKeyTypes, SSHCFG_ALL },
1.153 dtucker 499: { "dsaauthentication", sPubkeyAuthentication, SSHCFG_GLOBAL }, /* alias */
1.123 markus 500: #ifdef KRB5
1.168 dtucker 501: { "kerberosauthentication", sKerberosAuthentication, SSHCFG_ALL },
1.153 dtucker 502: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd, SSHCFG_GLOBAL },
503: { "kerberosticketcleanup", sKerberosTicketCleanup, SSHCFG_GLOBAL },
504: { "kerberosgetafstoken", sKerberosGetAFSToken, SSHCFG_GLOBAL },
1.121 jakob 505: #else
1.168 dtucker 506: { "kerberosauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 507: { "kerberosorlocalpasswd", sUnsupported, SSHCFG_GLOBAL },
508: { "kerberosticketcleanup", sUnsupported, SSHCFG_GLOBAL },
509: { "kerberosgetafstoken", sUnsupported, SSHCFG_GLOBAL },
1.126 markus 510: #endif
1.153 dtucker 511: { "kerberostgtpassing", sUnsupported, SSHCFG_GLOBAL },
512: { "afstokenpassing", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 513: #ifdef GSSAPI
1.168 dtucker 514: { "gssapiauthentication", sGssAuthentication, SSHCFG_ALL },
1.153 dtucker 515: { "gssapicleanupcredentials", sGssCleanupCreds, SSHCFG_GLOBAL },
1.271 djm 516: { "gssapistrictacceptorcheck", sGssStrictAcceptor, SSHCFG_GLOBAL },
1.125 markus 517: #else
1.168 dtucker 518: { "gssapiauthentication", sUnsupported, SSHCFG_ALL },
1.153 dtucker 519: { "gssapicleanupcredentials", sUnsupported, SSHCFG_GLOBAL },
1.271 djm 520: { "gssapistrictacceptorcheck", sUnsupported, SSHCFG_GLOBAL },
1.125 markus 521: #endif
1.168 dtucker 522: { "passwordauthentication", sPasswordAuthentication, SSHCFG_ALL },
523: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication, SSHCFG_ALL },
1.170 dtucker 524: { "challengeresponseauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL },
1.153 dtucker 525: { "skeyauthentication", sChallengeResponseAuthentication, SSHCFG_GLOBAL }, /* alias */
526: { "checkmail", sDeprecated, SSHCFG_GLOBAL },
527: { "listenaddress", sListenAddress, SSHCFG_GLOBAL },
528: { "addressfamily", sAddressFamily, SSHCFG_GLOBAL },
529: { "printmotd", sPrintMotd, SSHCFG_GLOBAL },
530: { "printlastlog", sPrintLastLog, SSHCFG_GLOBAL },
531: { "ignorerhosts", sIgnoreRhosts, SSHCFG_GLOBAL },
532: { "ignoreuserknownhosts", sIgnoreUserKnownHosts, SSHCFG_GLOBAL },
1.157 dtucker 533: { "x11forwarding", sX11Forwarding, SSHCFG_ALL },
534: { "x11displayoffset", sX11DisplayOffset, SSHCFG_ALL },
535: { "x11uselocalhost", sX11UseLocalhost, SSHCFG_ALL },
1.153 dtucker 536: { "xauthlocation", sXAuthLocation, SSHCFG_GLOBAL },
537: { "strictmodes", sStrictModes, SSHCFG_GLOBAL },
1.188 djm 538: { "permitemptypasswords", sEmptyPasswd, SSHCFG_ALL },
1.153 dtucker 539: { "permituserenvironment", sPermitUserEnvironment, SSHCFG_GLOBAL },
1.294 djm 540: { "uselogin", sDeprecated, SSHCFG_GLOBAL },
1.153 dtucker 541: { "compression", sCompression, SSHCFG_GLOBAL },
1.235 dtucker 542: { "rekeylimit", sRekeyLimit, SSHCFG_ALL },
1.153 dtucker 543: { "tcpkeepalive", sTCPKeepAlive, SSHCFG_GLOBAL },
544: { "keepalive", sTCPKeepAlive, SSHCFG_GLOBAL }, /* obsolete alias */
545: { "allowtcpforwarding", sAllowTcpForwarding, SSHCFG_ALL },
1.178 pyr 546: { "allowagentforwarding", sAllowAgentForwarding, SSHCFG_ALL },
1.227 markus 547: { "allowusers", sAllowUsers, SSHCFG_ALL },
548: { "denyusers", sDenyUsers, SSHCFG_ALL },
549: { "allowgroups", sAllowGroups, SSHCFG_ALL },
550: { "denygroups", sDenyGroups, SSHCFG_ALL },
1.153 dtucker 551: { "ciphers", sCiphers, SSHCFG_GLOBAL },
552: { "macs", sMacs, SSHCFG_GLOBAL },
1.295 djm 553: { "protocol", sIgnore, SSHCFG_GLOBAL },
1.153 dtucker 554: { "gatewayports", sGatewayPorts, SSHCFG_ALL },
555: { "subsystem", sSubsystem, SSHCFG_GLOBAL },
556: { "maxstartups", sMaxStartups, SSHCFG_GLOBAL },
1.184 dtucker 557: { "maxauthtries", sMaxAuthTries, SSHCFG_ALL },
1.180 djm 558: { "maxsessions", sMaxSessions, SSHCFG_ALL },
1.168 dtucker 559: { "banner", sBanner, SSHCFG_ALL },
1.153 dtucker 560: { "usedns", sUseDNS, SSHCFG_GLOBAL },
561: { "verifyreversemapping", sDeprecated, SSHCFG_GLOBAL },
562: { "reversemappingcheck", sDeprecated, SSHCFG_GLOBAL },
1.300 markus 563: { "clientaliveinterval", sClientAliveInterval, SSHCFG_ALL },
564: { "clientalivecountmax", sClientAliveCountMax, SSHCFG_ALL },
1.209 djm 565: { "authorizedkeysfile", sAuthorizedKeysFile, SSHCFG_ALL },
1.219 djm 566: { "authorizedkeysfile2", sDeprecated, SSHCFG_ALL },
1.306 djm 567: { "useprivilegeseparation", sDeprecated, SSHCFG_GLOBAL},
1.227 markus 568: { "acceptenv", sAcceptEnv, SSHCFG_ALL },
1.332 djm 569: { "setenv", sSetEnv, SSHCFG_ALL },
1.209 djm 570: { "permittunnel", sPermitTunnel, SSHCFG_ALL },
1.244 djm 571: { "permittty", sPermitTTY, SSHCFG_ALL },
1.250 djm 572: { "permituserrc", sPermitUserRC, SSHCFG_ALL },
1.153 dtucker 573: { "match", sMatch, SSHCFG_ALL },
1.156 dtucker 574: { "permitopen", sPermitOpen, SSHCFG_ALL },
1.330 djm 575: { "permitlisten", sPermitListen, SSHCFG_ALL },
1.158 dtucker 576: { "forcecommand", sForceCommand, SSHCFG_ALL },
1.176 djm 577: { "chrootdirectory", sChrootDirectory, SSHCFG_ALL },
1.203 djm 578: { "hostcertificate", sHostCertificate, SSHCFG_GLOBAL },
1.204 djm 579: { "revokedkeys", sRevokedKeys, SSHCFG_ALL },
580: { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL },
1.209 djm 581: { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL },
1.211 djm 582: { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL },
1.213 djm 583: { "ipqos", sIPQoS, SSHCFG_ALL },
1.231 djm 584: { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL },
585: { "authorizedkeyscommanduser", sAuthorizedKeysCommandUser, SSHCFG_ALL },
1.270 djm 586: { "authorizedprincipalscommand", sAuthorizedPrincipalsCommand, SSHCFG_ALL },
587: { "authorizedprincipalscommanduser", sAuthorizedPrincipalsCommandUser, SSHCFG_ALL },
1.225 djm 588: { "versionaddendum", sVersionAddendum, SSHCFG_GLOBAL },
1.232 djm 589: { "authenticationmethods", sAuthenticationMethods, SSHCFG_ALL },
1.251 millert 590: { "streamlocalbindmask", sStreamLocalBindMask, SSHCFG_ALL },
591: { "streamlocalbindunlink", sStreamLocalBindUnlink, SSHCFG_ALL },
592: { "allowstreamlocalforwarding", sAllowStreamLocalForwarding, SSHCFG_ALL },
1.256 djm 593: { "fingerprinthash", sFingerprintHash, SSHCFG_GLOBAL },
1.301 djm 594: { "disableforwarding", sDisableForwarding, SSHCFG_ALL },
1.309 djm 595: { "exposeauthinfo", sExposeAuthInfo, SSHCFG_ALL },
1.316 djm 596: { "rdomain", sRDomain, SSHCFG_ALL },
1.153 dtucker 597: { NULL, sBadOption, 0 }
1.1 deraadt 598: };
599:
1.182 dtucker 600: static struct {
601: int val;
602: char *text;
603: } tunmode_desc[] = {
604: { SSH_TUNMODE_NO, "no" },
605: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
606: { SSH_TUNMODE_ETHERNET, "ethernet" },
607: { SSH_TUNMODE_YES, "yes" },
608: { -1, NULL }
609: };
610:
1.329 djm 611: /* Returns an opcode name from its number */
612:
613: static const char *
614: lookup_opcode_name(ServerOpCodes code)
615: {
616: u_int i;
617:
618: for (i = 0; keywords[i].name != NULL; i++)
619: if (keywords[i].opcode == code)
620: return(keywords[i].name);
621: return "UNKNOWN";
622: }
623:
624:
1.27 markus 625: /*
1.73 stevesk 626: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 627: */
1.1 deraadt 628:
1.34 markus 629: static ServerOpCodes
1.25 markus 630: parse_token(const char *cp, const char *filename,
1.153 dtucker 631: int linenum, u_int *flags)
1.1 deraadt 632: {
1.55 markus 633: u_int i;
1.1 deraadt 634:
1.25 markus 635: for (i = 0; keywords[i].name; i++)
1.153 dtucker 636: if (strcasecmp(cp, keywords[i].name) == 0) {
637: *flags = keywords[i].flags;
1.25 markus 638: return keywords[i].opcode;
1.153 dtucker 639: }
1.25 markus 640:
1.78 stevesk 641: error("%s: line %d: Bad configuration option: %s",
642: filename, linenum, cp);
1.25 markus 643: return sBadOption;
1.1 deraadt 644: }
645:
1.202 djm 646: char *
647: derelativise_path(const char *path)
648: {
1.259 deraadt 649: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 650:
1.257 djm 651: if (strcasecmp(path, "none") == 0)
652: return xstrdup("none");
1.202 djm 653: expanded = tilde_expand_filename(path, getuid());
654: if (*expanded == '/')
655: return expanded;
1.207 djm 656: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 657: fatal("%s: getcwd: %s", __func__, strerror(errno));
658: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 659: free(expanded);
1.202 djm 660: return ret;
661: }
662:
1.84 itojun 663: static void
1.315 djm 664: add_listen_addr(ServerOptions *options, const char *addr,
665: const char *rdomain, int port)
1.74 stevesk 666: {
1.142 djm 667: u_int i;
1.74 stevesk 668:
1.315 djm 669: if (port > 0)
670: add_one_listen_addr(options, addr, rdomain, port);
671: else {
672: for (i = 0; i < options->num_ports; i++) {
673: add_one_listen_addr(options, addr, rdomain,
674: options->ports[i]);
675: }
676: }
1.74 stevesk 677: }
678:
1.84 itojun 679: static void
1.315 djm 680: add_one_listen_addr(ServerOptions *options, const char *addr,
681: const char *rdomain, int port)
1.29 markus 682: {
683: struct addrinfo hints, *ai, *aitop;
684: char strport[NI_MAXSERV];
685: int gaierr;
1.315 djm 686: u_int i;
687:
688: /* Find listen_addrs entry for this rdomain */
689: for (i = 0; i < options->num_listen_addrs; i++) {
690: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
691: break;
692: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
693: continue;
694: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
695: break;
696: }
697: if (i >= options->num_listen_addrs) {
698: /* No entry for this rdomain; allocate one */
699: if (i >= INT_MAX)
700: fatal("%s: too many listen addresses", __func__);
701: options->listen_addrs = xrecallocarray(options->listen_addrs,
702: options->num_listen_addrs, options->num_listen_addrs + 1,
703: sizeof(*options->listen_addrs));
704: i = options->num_listen_addrs++;
705: if (rdomain != NULL)
706: options->listen_addrs[i].rdomain = xstrdup(rdomain);
707: }
708: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 709:
1.74 stevesk 710: memset(&hints, 0, sizeof(hints));
1.138 djm 711: hints.ai_family = options->address_family;
1.74 stevesk 712: hints.ai_socktype = SOCK_STREAM;
713: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 714: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 715: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
716: fatal("bad addr or host: %s (%s)",
717: addr ? addr : "<NULL>",
1.173 dtucker 718: ssh_gai_strerror(gaierr));
1.74 stevesk 719: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
720: ;
1.315 djm 721: ai->ai_next = options->listen_addrs[i].addrs;
722: options->listen_addrs[i].addrs = aitop;
723: }
724:
725: /* Returns nonzero if the routing domain name is valid */
726: static int
727: valid_rdomain(const char *name)
728: {
729: const char *errstr;
730: long long num;
731: struct rt_tableinfo info;
732: int mib[6];
733: size_t miblen = sizeof(mib);
734:
735: if (name == NULL)
736: return 1;
737:
738: num = strtonum(name, 0, 255, &errstr);
739: if (errstr != NULL)
740: return 0;
741:
742: /* Check whether the table actually exists */
743: memset(mib, 0, sizeof(mib));
744: mib[0] = CTL_NET;
745: mib[1] = PF_ROUTE;
746: mib[4] = NET_RT_TABLE;
747: mib[5] = (int)num;
748: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
749: return 0;
750:
751: return 1;
1.29 markus 752: }
753:
1.266 dtucker 754: /*
755: * Queue a ListenAddress to be processed once we have all of the Ports
756: * and AddressFamily options.
757: */
758: static void
1.315 djm 759: queue_listen_addr(ServerOptions *options, const char *addr,
760: const char *rdomain, int port)
1.266 dtucker 761: {
1.315 djm 762: struct queued_listenaddr *qla;
763:
764: options->queued_listen_addrs = xrecallocarray(
765: options->queued_listen_addrs,
766: options->num_queued_listens, options->num_queued_listens + 1,
767: sizeof(*options->queued_listen_addrs));
768: qla = &options->queued_listen_addrs[options->num_queued_listens++];
769: qla->addr = xstrdup(addr);
770: qla->port = port;
771: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 772: }
773:
774: /*
775: * Process queued (text) ListenAddress entries.
776: */
777: static void
778: process_queued_listen_addrs(ServerOptions *options)
779: {
780: u_int i;
1.315 djm 781: struct queued_listenaddr *qla;
1.266 dtucker 782:
783: if (options->num_ports == 0)
784: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
785: if (options->address_family == -1)
786: options->address_family = AF_UNSPEC;
787:
788: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 789: qla = &options->queued_listen_addrs[i];
790: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
791: free(qla->addr);
792: free(qla->rdomain);
1.266 dtucker 793: }
794: free(options->queued_listen_addrs);
795: options->queued_listen_addrs = NULL;
796: options->num_queued_listens = 0;
797: }
798:
1.310 djm 799: /*
1.329 djm 800: * Inform channels layer of permitopen options for a single forwarding
801: * direction (local/remote).
1.310 djm 802: */
1.329 djm 803: static void
804: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
805: char **opens, u_int num_opens)
1.310 djm 806: {
807: u_int i;
808: int port;
809: char *host, *arg, *oarg;
1.329 djm 810: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
811: const char *what = lookup_opcode_name(opcode);
1.310 djm 812:
1.329 djm 813: channel_clear_permission(ssh, FORWARD_ADM, where);
814: if (num_opens == 0)
1.310 djm 815: return; /* permit any */
816:
817: /* handle keywords: "any" / "none" */
1.329 djm 818: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 819: return;
1.329 djm 820: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
821: channel_disable_admin(ssh, where);
1.310 djm 822: return;
823: }
824: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 825: for (i = 0; i < num_opens; i++) {
826: oarg = arg = xstrdup(opens[i]);
1.310 djm 827: host = hpdelim(&arg);
828: if (host == NULL)
1.329 djm 829: fatal("%s: missing host in %s", __func__, what);
1.310 djm 830: host = cleanhostname(host);
831: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.329 djm 832: fatal("%s: bad port number in %s", __func__, what);
1.310 djm 833: /* Send it to channels layer */
1.329 djm 834: channel_add_permission(ssh, FORWARD_ADM,
835: where, host, port);
1.310 djm 836: free(oarg);
837: }
838: }
839:
1.329 djm 840: /*
841: * Inform channels layer of permitopen options from configuration.
842: */
843: void
844: process_permitopen(struct ssh *ssh, ServerOptions *options)
845: {
846: process_permitopen_list(ssh, sPermitOpen,
847: options->permitted_opens, options->num_permitted_opens);
1.330 djm 848: process_permitopen_list(ssh, sPermitListen,
849: options->permitted_listens,
850: options->num_permitted_listens);
1.329 djm 851: }
852:
1.226 dtucker 853: struct connection_info *
854: get_connection_info(int populate, int use_dns)
855: {
1.286 djm 856: struct ssh *ssh = active_state; /* XXX */
1.226 dtucker 857: static struct connection_info ci;
858:
859: if (!populate)
860: return &ci;
1.286 djm 861: ci.host = auth_get_canonical_hostname(ssh, use_dns);
862: ci.address = ssh_remote_ipaddr(ssh);
863: ci.laddress = ssh_local_ipaddr(ssh);
864: ci.lport = ssh_local_port(ssh);
1.317 djm 865: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 866: return &ci;
867: }
868:
1.153 dtucker 869: /*
870: * The strategy for the Match blocks is that the config file is parsed twice.
871: *
872: * The first time is at startup. activep is initialized to 1 and the
873: * directives in the global context are processed and acted on. Hitting a
874: * Match directive unsets activep and the directives inside the block are
875: * checked for syntax only.
876: *
877: * The second time is after a connection has been established but before
878: * authentication. activep is initialized to 2 and global config directives
879: * are ignored since they have already been processed. If the criteria in a
880: * Match block is met, activep is set and the subsequent directives
881: * processed and actioned until EOF or another Match block unsets it. Any
882: * options set are copied into the main server config.
883: *
884: * Potential additions/improvements:
1.295 djm 885: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 886: *
887: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
888: * Match Address 192.168.0.*
889: * Tag trusted
890: * Match Group wheel
891: * Tag trusted
892: * Match Tag trusted
893: * AllowTcpForwarding yes
894: * GatewayPorts clientspecified
895: * [...]
896: *
897: * - Add a PermittedChannelRequests directive
898: * Match Group shell
899: * PermittedChannelRequests session,forwarded-tcpip
900: */
901:
902: static int
1.165 dtucker 903: match_cfg_line_group(const char *grps, int line, const char *user)
904: {
905: int result = 0;
906: struct passwd *pw;
907:
908: if (user == NULL)
909: goto out;
910:
911: if ((pw = getpwnam(user)) == NULL) {
912: debug("Can't match group at line %d because user %.100s does "
913: "not exist", line, user);
914: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
915: debug("Can't Match group because user %.100s not in any group "
916: "at line %d", user, line);
1.186 djm 917: } else if (ga_match_pattern_list(grps) != 1) {
918: debug("user %.100s does not match group list %.100s at line %d",
919: user, grps, line);
1.165 dtucker 920: } else {
1.186 djm 921: debug("user %.100s matched group list %.100s at line %d", user,
922: grps, line);
1.165 dtucker 923: result = 1;
924: }
925: out:
926: ga_free();
927: return result;
928: }
929:
1.319 dtucker 930: static void
931: match_test_missing_fatal(const char *criteria, const char *attrib)
932: {
933: fatal("'Match %s' in configuration but '%s' not in connection "
934: "test specification.", criteria, attrib);
935: }
936:
1.226 dtucker 937: /*
1.230 dtucker 938: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 939: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 940: * not match.
1.226 dtucker 941: */
1.165 dtucker 942: static int
1.226 dtucker 943: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 944: {
1.243 dtucker 945: int result = 1, attributes = 0, port;
1.153 dtucker 946: char *arg, *attrib, *cp = *condition;
947:
1.226 dtucker 948: if (ci == NULL)
1.153 dtucker 949: debug3("checking syntax for 'Match %s'", cp);
950: else
1.226 dtucker 951: debug3("checking match for '%s' user %s host %s addr %s "
952: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
953: ci->host ? ci->host : "(null)",
954: ci->address ? ci->address : "(null)",
955: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 956:
957: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 958: attributes++;
959: if (strcasecmp(attrib, "all") == 0) {
960: if (attributes != 1 ||
961: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
962: error("'all' cannot be combined with other "
963: "Match attributes");
964: return -1;
965: }
966: *condition = cp;
967: return 1;
968: }
1.153 dtucker 969: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
970: error("Missing Match criteria for %s", attrib);
971: return -1;
972: }
973: if (strcasecmp(attrib, "user") == 0) {
1.319 dtucker 974: if (ci == NULL) {
1.153 dtucker 975: result = 0;
976: continue;
977: }
1.319 dtucker 978: if (ci->user == NULL)
979: match_test_missing_fatal("User", "user");
1.269 djm 980: if (match_pattern_list(ci->user, arg, 0) != 1)
1.153 dtucker 981: result = 0;
982: else
983: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 984: "line %d", ci->user, arg, line);
1.165 dtucker 985: } else if (strcasecmp(attrib, "group") == 0) {
1.319 dtucker 986: if (ci == NULL) {
1.226 dtucker 987: result = 0;
988: continue;
989: }
1.319 dtucker 990: if (ci->user == NULL)
991: match_test_missing_fatal("Group", "user");
1.226 dtucker 992: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 993: case -1:
994: return -1;
995: case 0:
996: result = 0;
997: }
1.153 dtucker 998: } else if (strcasecmp(attrib, "host") == 0) {
1.319 dtucker 999: if (ci == NULL) {
1.153 dtucker 1000: result = 0;
1001: continue;
1002: }
1.319 dtucker 1003: if (ci->host == NULL)
1004: match_test_missing_fatal("Host", "host");
1.269 djm 1005: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1006: result = 0;
1007: else
1008: debug("connection from %.100s matched 'Host "
1.226 dtucker 1009: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1010: } else if (strcasecmp(attrib, "address") == 0) {
1.319 dtucker 1011: if (ci == NULL) {
1.226 dtucker 1012: result = 0;
1013: continue;
1014: }
1.319 dtucker 1015: if (ci->address == NULL)
1016: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1017: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1018: case 1:
1019: debug("connection from %.100s matched 'Address "
1.226 dtucker 1020: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1021: break;
1022: case 0:
1.183 djm 1023: case -1:
1.153 dtucker 1024: result = 0;
1.181 djm 1025: break;
1.183 djm 1026: case -2:
1.181 djm 1027: return -1;
1.153 dtucker 1028: }
1.226 dtucker 1029: } else if (strcasecmp(attrib, "localaddress") == 0){
1.319 dtucker 1030: if (ci == NULL) {
1.226 dtucker 1031: result = 0;
1032: continue;
1033: }
1.319 dtucker 1034: if (ci->laddress == NULL)
1035: match_test_missing_fatal("LocalAddress",
1036: "laddr");
1.226 dtucker 1037: switch (addr_match_list(ci->laddress, arg)) {
1038: case 1:
1039: debug("connection from %.100s matched "
1040: "'LocalAddress %.100s' at line %d",
1041: ci->laddress, arg, line);
1042: break;
1043: case 0:
1044: case -1:
1045: result = 0;
1046: break;
1047: case -2:
1048: return -1;
1049: }
1050: } else if (strcasecmp(attrib, "localport") == 0) {
1051: if ((port = a2port(arg)) == -1) {
1052: error("Invalid LocalPort '%s' on Match line",
1053: arg);
1054: return -1;
1055: }
1.319 dtucker 1056: if (ci == NULL) {
1.226 dtucker 1057: result = 0;
1058: continue;
1059: }
1.319 dtucker 1060: if (ci->lport == 0)
1061: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1062: /* TODO support port lists */
1063: if (port == ci->lport)
1064: debug("connection from %.100s matched "
1065: "'LocalPort %d' at line %d",
1066: ci->laddress, port, line);
1067: else
1068: result = 0;
1.317 djm 1069: } else if (strcasecmp(attrib, "rdomain") == 0) {
1070: if (ci == NULL || ci->rdomain == NULL) {
1071: result = 0;
1072: continue;
1073: }
1074: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1075: result = 0;
1076: else
1077: debug("user %.100s matched 'RDomain %.100s' at "
1078: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1079: } else {
1080: error("Unsupported Match attribute %s", attrib);
1081: return -1;
1082: }
1.243 dtucker 1083: }
1084: if (attributes == 0) {
1085: error("One or more attributes required for Match");
1086: return -1;
1.153 dtucker 1087: }
1.226 dtucker 1088: if (ci != NULL)
1.153 dtucker 1089: debug3("match %sfound", result ? "" : "not ");
1090: *condition = cp;
1091: return result;
1092: }
1093:
1.158 dtucker 1094: #define WHITESPACE " \t\r\n"
1095:
1.220 djm 1096: /* Multistate option parsing */
1097: struct multistate {
1098: char *key;
1099: int value;
1100: };
1.320 djm 1101: static const struct multistate multistate_flag[] = {
1102: { "yes", 1 },
1103: { "no", 0 },
1104: { NULL, -1 }
1105: };
1.220 djm 1106: static const struct multistate multistate_addressfamily[] = {
1107: { "inet", AF_INET },
1108: { "inet6", AF_INET6 },
1109: { "any", AF_UNSPEC },
1110: { NULL, -1 }
1111: };
1112: static const struct multistate multistate_permitrootlogin[] = {
1113: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1114: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1115: { "forced-commands-only", PERMIT_FORCED_ONLY },
1116: { "yes", PERMIT_YES },
1117: { "no", PERMIT_NO },
1118: { NULL, -1 }
1119: };
1120: static const struct multistate multistate_compression[] = {
1.337 sf 1121: { "yes", COMP_DELAYED },
1122: { "delayed", COMP_DELAYED },
1.220 djm 1123: { "no", COMP_NONE },
1124: { NULL, -1 }
1125: };
1126: static const struct multistate multistate_gatewayports[] = {
1127: { "clientspecified", 2 },
1128: { "yes", 1 },
1129: { "no", 0 },
1.222 djm 1130: { NULL, -1 }
1131: };
1.233 djm 1132: static const struct multistate multistate_tcpfwd[] = {
1133: { "yes", FORWARD_ALLOW },
1134: { "all", FORWARD_ALLOW },
1135: { "no", FORWARD_DENY },
1136: { "remote", FORWARD_REMOTE },
1137: { "local", FORWARD_LOCAL },
1138: { NULL, -1 }
1139: };
1.220 djm 1140:
1.94 markus 1141: int
1142: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 1143: const char *filename, int linenum, int *activep,
1144: struct connection_info *connectinfo)
1.1 deraadt 1145: {
1.329 djm 1146: char *cp, ***chararrayptr, **charptr, *arg, *arg2, *p;
1.237 dtucker 1147: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 1148: SyslogFacility *log_facility_ptr;
1149: LogLevel *log_level_ptr;
1.25 markus 1150: ServerOpCodes opcode;
1.329 djm 1151: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1152: size_t len;
1.237 dtucker 1153: long long val64;
1.220 djm 1154: const struct multistate *multistate_ptr;
1.322 dtucker 1155: const char *errstr;
1.303 djm 1156:
1157: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1158: if ((len = strlen(line)) == 0)
1159: return 0;
1160: for (len--; len > 0; len--) {
1161: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1162: break;
1163: line[len] = '\0';
1164: }
1.25 markus 1165:
1.94 markus 1166: cp = line;
1.148 dtucker 1167: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 1168: return 0;
1.94 markus 1169: /* Ignore leading whitespace */
1170: if (*arg == '\0')
1171: arg = strdelim(&cp);
1172: if (!arg || !*arg || *arg == '#')
1173: return 0;
1174: intptr = NULL;
1175: charptr = NULL;
1.153 dtucker 1176: opcode = parse_token(arg, filename, linenum, &flags);
1177:
1178: if (activep == NULL) { /* We are processing a command line directive */
1179: cmdline = 1;
1180: activep = &cmdline;
1181: }
1182: if (*activep && opcode != sMatch)
1183: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
1184: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1185: if (connectinfo == NULL) {
1.153 dtucker 1186: fatal("%s line %d: Directive '%s' is not allowed "
1187: "within a Match block", filename, linenum, arg);
1188: } else { /* this is a directive we have already processed */
1189: while (arg)
1190: arg = strdelim(&cp);
1191: return 0;
1192: }
1193: }
1194:
1.94 markus 1195: switch (opcode) {
1196: case sBadOption:
1197: return -1;
1198: case sPort:
1199: /* ignore ports from configfile if cmdline specifies ports */
1200: if (options->ports_from_cmdline)
1201: return 0;
1202: if (options->num_ports >= MAX_PORTS)
1203: fatal("%s line %d: too many ports.",
1204: filename, linenum);
1.48 provos 1205: arg = strdelim(&cp);
1.94 markus 1206: if (!arg || *arg == '\0')
1207: fatal("%s line %d: missing port number.",
1208: filename, linenum);
1209: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1210: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1211: fatal("%s line %d: Badly formatted port number.",
1212: filename, linenum);
1213: break;
1.29 markus 1214:
1.94 markus 1215: case sLoginGraceTime:
1216: intptr = &options->login_grace_time;
1.180 djm 1217: parse_time:
1.94 markus 1218: arg = strdelim(&cp);
1219: if (!arg || *arg == '\0')
1220: fatal("%s line %d: missing time value.",
1221: filename, linenum);
1222: if ((value = convtime(arg)) == -1)
1223: fatal("%s line %d: invalid time value.",
1224: filename, linenum);
1.268 djm 1225: if (*activep && *intptr == -1)
1.94 markus 1226: *intptr = value;
1227: break;
1228:
1229: case sListenAddress:
1230: arg = strdelim(&cp);
1.139 djm 1231: if (arg == NULL || *arg == '\0')
1232: fatal("%s line %d: missing address",
1.94 markus 1233: filename, linenum);
1.144 dtucker 1234: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1235: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1236: && strchr(p+1, ':') != NULL) {
1.315 djm 1237: port = 0;
1238: p = arg;
1239: } else {
1240: p = hpdelim(&arg);
1241: if (p == NULL)
1242: fatal("%s line %d: bad address:port usage",
1243: filename, linenum);
1244: p = cleanhostname(p);
1245: if (arg == NULL)
1246: port = 0;
1247: else if ((port = a2port(arg)) <= 0)
1248: fatal("%s line %d: bad port number",
1249: filename, linenum);
1250: }
1251: /* Optional routing table */
1252: arg2 = NULL;
1253: if ((arg = strdelim(&cp)) != NULL) {
1254: if (strcmp(arg, "rdomain") != 0 ||
1255: (arg2 = strdelim(&cp)) == NULL)
1256: fatal("%s line %d: bad ListenAddress syntax",
1257: filename, linenum);
1258: if (!valid_rdomain(arg2))
1259: fatal("%s line %d: bad routing domain",
1260: filename, linenum);
1.144 dtucker 1261: }
1.139 djm 1262:
1.315 djm 1263: queue_listen_addr(options, p, arg2, port);
1.25 markus 1264:
1.138 djm 1265: break;
1266:
1267: case sAddressFamily:
1.220 djm 1268: intptr = &options->address_family;
1269: multistate_ptr = multistate_addressfamily;
1270: parse_multistate:
1.138 djm 1271: arg = strdelim(&cp);
1.141 markus 1272: if (!arg || *arg == '\0')
1.220 djm 1273: fatal("%s line %d: missing argument.",
1.141 markus 1274: filename, linenum);
1.220 djm 1275: value = -1;
1276: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1277: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1278: value = multistate_ptr[i].value;
1279: break;
1280: }
1281: }
1282: if (value == -1)
1283: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1284: filename, linenum, arg);
1.220 djm 1285: if (*activep && *intptr == -1)
1.138 djm 1286: *intptr = value;
1.94 markus 1287: break;
1288:
1289: case sHostKeyFile:
1290: arg = strdelim(&cp);
1291: if (!arg || *arg == '\0')
1292: fatal("%s line %d: missing file name.",
1293: filename, linenum);
1.314 djm 1294: if (*activep)
1295: servconf_add_hostkey(filename, linenum, options, arg);
1.94 markus 1296: break;
1.76 stevesk 1297:
1.240 markus 1298: case sHostKeyAgent:
1299: charptr = &options->host_key_agent;
1300: arg = strdelim(&cp);
1301: if (!arg || *arg == '\0')
1302: fatal("%s line %d: missing socket name.",
1303: filename, linenum);
1304: if (*activep && *charptr == NULL)
1305: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1306: xstrdup(arg) : derelativise_path(arg);
1307: break;
1308:
1.203 djm 1309: case sHostCertificate:
1.314 djm 1310: arg = strdelim(&cp);
1311: if (!arg || *arg == '\0')
1312: fatal("%s line %d: missing file name.",
1313: filename, linenum);
1314: if (*activep)
1315: servconf_add_hostcert(filename, linenum, options, arg);
1316: break;
1.203 djm 1317:
1.94 markus 1318: case sPidFile:
1319: charptr = &options->pid_file;
1.314 djm 1320: parse_filename:
1321: arg = strdelim(&cp);
1322: if (!arg || *arg == '\0')
1323: fatal("%s line %d: missing file name.",
1324: filename, linenum);
1325: if (*activep && *charptr == NULL) {
1326: *charptr = derelativise_path(arg);
1327: /* increase optional counter */
1328: if (intptr != NULL)
1329: *intptr = *intptr + 1;
1330: }
1331: break;
1.25 markus 1332:
1.94 markus 1333: case sPermitRootLogin:
1334: intptr = &options->permit_root_login;
1.220 djm 1335: multistate_ptr = multistate_permitrootlogin;
1336: goto parse_multistate;
1.36 markus 1337:
1.94 markus 1338: case sIgnoreRhosts:
1339: intptr = &options->ignore_rhosts;
1.180 djm 1340: parse_flag:
1.320 djm 1341: multistate_ptr = multistate_flag;
1342: goto parse_multistate;
1.94 markus 1343:
1344: case sIgnoreUserKnownHosts:
1345: intptr = &options->ignore_user_known_hosts;
1346: goto parse_flag;
1347:
1348: case sHostbasedAuthentication:
1349: intptr = &options->hostbased_authentication;
1350: goto parse_flag;
1351:
1352: case sHostbasedUsesNameFromPacketOnly:
1353: intptr = &options->hostbased_uses_name_from_packet_only;
1354: goto parse_flag;
1355:
1.258 djm 1356: case sHostbasedAcceptedKeyTypes:
1357: charptr = &options->hostbased_key_types;
1358: parse_keytypes:
1359: arg = strdelim(&cp);
1360: if (!arg || *arg == '\0')
1361: fatal("%s line %d: Missing argument.",
1362: filename, linenum);
1.304 djm 1363: if (*arg != '-' &&
1364: !sshkey_names_valid2(*arg == '+' ? arg + 1 : arg, 1))
1.258 djm 1365: fatal("%s line %d: Bad key types '%s'.",
1366: filename, linenum, arg ? arg : "<NONE>");
1367: if (*activep && *charptr == NULL)
1368: *charptr = xstrdup(arg);
1369: break;
1370:
1.276 markus 1371: case sHostKeyAlgorithms:
1372: charptr = &options->hostkeyalgorithms;
1373: goto parse_keytypes;
1374:
1.341 ! djm 1375: case sCASignatureAlgorithms:
! 1376: charptr = &options->ca_sign_algorithms;
! 1377: goto parse_keytypes;
! 1378:
1.94 markus 1379: case sPubkeyAuthentication:
1380: intptr = &options->pubkey_authentication;
1381: goto parse_flag;
1.119 jakob 1382:
1.258 djm 1383: case sPubkeyAcceptedKeyTypes:
1384: charptr = &options->pubkey_key_types;
1385: goto parse_keytypes;
1386:
1.94 markus 1387: case sKerberosAuthentication:
1388: intptr = &options->kerberos_authentication;
1389: goto parse_flag;
1390:
1391: case sKerberosOrLocalPasswd:
1392: intptr = &options->kerberos_or_local_passwd;
1393: goto parse_flag;
1394:
1395: case sKerberosTicketCleanup:
1396: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1397: goto parse_flag;
1398:
1399: case sKerberosGetAFSToken:
1400: intptr = &options->kerberos_get_afs_token;
1.125 markus 1401: goto parse_flag;
1402:
1403: case sGssAuthentication:
1404: intptr = &options->gss_authentication;
1405: goto parse_flag;
1406:
1407: case sGssCleanupCreds:
1408: intptr = &options->gss_cleanup_creds;
1.271 djm 1409: goto parse_flag;
1410:
1411: case sGssStrictAcceptor:
1412: intptr = &options->gss_strict_acceptor;
1.94 markus 1413: goto parse_flag;
1414:
1415: case sPasswordAuthentication:
1416: intptr = &options->password_authentication;
1417: goto parse_flag;
1418:
1419: case sKbdInteractiveAuthentication:
1420: intptr = &options->kbd_interactive_authentication;
1421: goto parse_flag;
1422:
1423: case sChallengeResponseAuthentication:
1424: intptr = &options->challenge_response_authentication;
1425: goto parse_flag;
1426:
1427: case sPrintMotd:
1428: intptr = &options->print_motd;
1429: goto parse_flag;
1430:
1431: case sPrintLastLog:
1432: intptr = &options->print_lastlog;
1433: goto parse_flag;
1434:
1435: case sX11Forwarding:
1436: intptr = &options->x11_forwarding;
1437: goto parse_flag;
1438:
1439: case sX11DisplayOffset:
1440: intptr = &options->x11_display_offset;
1.293 naddy 1441: parse_int:
1442: arg = strdelim(&cp);
1.322 dtucker 1443: if ((errstr = atoi_err(arg, &value)) != NULL)
1444: fatal("%s line %d: integer value %s.",
1445: filename, linenum, errstr);
1.293 naddy 1446: if (*activep && *intptr == -1)
1447: *intptr = value;
1448: break;
1.99 stevesk 1449:
1450: case sX11UseLocalhost:
1451: intptr = &options->x11_use_localhost;
1452: goto parse_flag;
1.94 markus 1453:
1454: case sXAuthLocation:
1455: charptr = &options->xauth_location;
1456: goto parse_filename;
1457:
1.244 djm 1458: case sPermitTTY:
1459: intptr = &options->permit_tty;
1460: goto parse_flag;
1461:
1.250 djm 1462: case sPermitUserRC:
1463: intptr = &options->permit_user_rc;
1464: goto parse_flag;
1465:
1.94 markus 1466: case sStrictModes:
1467: intptr = &options->strict_modes;
1468: goto parse_flag;
1469:
1.129 markus 1470: case sTCPKeepAlive:
1471: intptr = &options->tcp_keep_alive;
1.94 markus 1472: goto parse_flag;
1473:
1474: case sEmptyPasswd:
1475: intptr = &options->permit_empty_passwd;
1.113 markus 1476: goto parse_flag;
1477:
1478: case sPermitUserEnvironment:
1479: intptr = &options->permit_user_env;
1.334 djm 1480: charptr = &options->permit_user_env_whitelist;
1481: arg = strdelim(&cp);
1482: if (!arg || *arg == '\0')
1483: fatal("%s line %d: missing argument.",
1484: filename, linenum);
1485: value = 0;
1486: p = NULL;
1487: if (strcmp(arg, "yes") == 0)
1488: value = 1;
1489: else if (strcmp(arg, "no") == 0)
1490: value = 0;
1491: else {
1492: /* Pattern-list specified */
1493: value = 1;
1494: p = xstrdup(arg);
1495: }
1496: if (*activep && *intptr == -1) {
1497: *intptr = value;
1498: *charptr = p;
1499: p = NULL;
1500: }
1501: free(p);
1502: break;
1.94 markus 1503:
1.111 markus 1504: case sCompression:
1505: intptr = &options->compression;
1.220 djm 1506: multistate_ptr = multistate_compression;
1507: goto parse_multistate;
1.94 markus 1508:
1.235 dtucker 1509: case sRekeyLimit:
1510: arg = strdelim(&cp);
1511: if (!arg || *arg == '\0')
1512: fatal("%.200s line %d: Missing argument.", filename,
1513: linenum);
1514: if (strcmp(arg, "default") == 0) {
1515: val64 = 0;
1516: } else {
1.236 dtucker 1517: if (scan_scaled(arg, &val64) == -1)
1518: fatal("%.200s line %d: Bad number '%s': %s",
1519: filename, linenum, arg, strerror(errno));
1.235 dtucker 1520: if (val64 != 0 && val64 < 16)
1521: fatal("%.200s line %d: RekeyLimit too small",
1522: filename, linenum);
1523: }
1524: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1525: options->rekey_limit = val64;
1.235 dtucker 1526: if (cp != NULL) { /* optional rekey interval present */
1527: if (strcmp(cp, "none") == 0) {
1528: (void)strdelim(&cp); /* discard */
1529: break;
1530: }
1531: intptr = &options->rekey_interval;
1532: goto parse_time;
1533: }
1534: break;
1535:
1.94 markus 1536: case sGatewayPorts:
1.251 millert 1537: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1538: multistate_ptr = multistate_gatewayports;
1539: goto parse_multistate;
1.25 markus 1540:
1.122 markus 1541: case sUseDNS:
1542: intptr = &options->use_dns;
1.94 markus 1543: goto parse_flag;
1.53 markus 1544:
1.94 markus 1545: case sLogFacility:
1.174 dtucker 1546: log_facility_ptr = &options->log_facility;
1.94 markus 1547: arg = strdelim(&cp);
1548: value = log_facility_number(arg);
1.101 markus 1549: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1550: fatal("%.200s line %d: unsupported log facility '%s'",
1551: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1552: if (*log_facility_ptr == -1)
1553: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1554: break;
1.25 markus 1555:
1.94 markus 1556: case sLogLevel:
1.174 dtucker 1557: log_level_ptr = &options->log_level;
1.94 markus 1558: arg = strdelim(&cp);
1559: value = log_level_number(arg);
1.101 markus 1560: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1561: fatal("%.200s line %d: unsupported log level '%s'",
1562: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1563: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1564: *log_level_ptr = (LogLevel) value;
1.94 markus 1565: break;
1566:
1567: case sAllowTcpForwarding:
1568: intptr = &options->allow_tcp_forwarding;
1.233 djm 1569: multistate_ptr = multistate_tcpfwd;
1570: goto parse_multistate;
1.102 provos 1571:
1.251 millert 1572: case sAllowStreamLocalForwarding:
1573: intptr = &options->allow_streamlocal_forwarding;
1574: multistate_ptr = multistate_tcpfwd;
1575: goto parse_multistate;
1576:
1.178 pyr 1577: case sAllowAgentForwarding:
1578: intptr = &options->allow_agent_forwarding;
1579: goto parse_flag;
1580:
1.301 djm 1581: case sDisableForwarding:
1582: intptr = &options->disable_forwarding;
1583: goto parse_flag;
1584:
1.94 markus 1585: case sAllowUsers:
1586: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1587: if (match_user(NULL, NULL, NULL, arg) == -1)
1588: fatal("%s line %d: invalid AllowUsers pattern: "
1589: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1590: if (!*activep)
1591: continue;
1.314 djm 1592: array_append(filename, linenum, "AllowUsers",
1593: &options->allow_users, &options->num_allow_users,
1594: arg);
1.94 markus 1595: }
1596: break;
1.25 markus 1597:
1.94 markus 1598: case sDenyUsers:
1599: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1600: if (match_user(NULL, NULL, NULL, arg) == -1)
1601: fatal("%s line %d: invalid DenyUsers pattern: "
1602: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1603: if (!*activep)
1604: continue;
1.314 djm 1605: array_append(filename, linenum, "DenyUsers",
1606: &options->deny_users, &options->num_deny_users,
1607: arg);
1.94 markus 1608: }
1609: break;
1.25 markus 1610:
1.94 markus 1611: case sAllowGroups:
1612: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1613: if (!*activep)
1614: continue;
1.314 djm 1615: array_append(filename, linenum, "AllowGroups",
1616: &options->allow_groups, &options->num_allow_groups,
1617: arg);
1.94 markus 1618: }
1619: break;
1.33 markus 1620:
1.94 markus 1621: case sDenyGroups:
1622: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1623: if (!*activep)
1624: continue;
1.314 djm 1625: array_append(filename, linenum, "DenyGroups",
1626: &options->deny_groups, &options->num_deny_groups,
1627: arg);
1.94 markus 1628: }
1629: break;
1.66 markus 1630:
1.94 markus 1631: case sCiphers:
1632: arg = strdelim(&cp);
1633: if (!arg || *arg == '\0')
1634: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1635: if (*arg != '-' && !ciphers_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1636: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1637: filename, linenum, arg ? arg : "<NONE>");
1638: if (options->ciphers == NULL)
1639: options->ciphers = xstrdup(arg);
1640: break;
1.33 markus 1641:
1.94 markus 1642: case sMacs:
1643: arg = strdelim(&cp);
1644: if (!arg || *arg == '\0')
1645: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1646: if (*arg != '-' && !mac_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1647: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1648: filename, linenum, arg ? arg : "<NONE>");
1649: if (options->macs == NULL)
1650: options->macs = xstrdup(arg);
1.211 djm 1651: break;
1652:
1653: case sKexAlgorithms:
1654: arg = strdelim(&cp);
1655: if (!arg || *arg == '\0')
1656: fatal("%s line %d: Missing argument.",
1657: filename, linenum);
1.304 djm 1658: if (*arg != '-' &&
1659: !kex_names_valid(*arg == '+' ? arg + 1 : arg))
1.211 djm 1660: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1661: filename, linenum, arg ? arg : "<NONE>");
1662: if (options->kex_algorithms == NULL)
1663: options->kex_algorithms = xstrdup(arg);
1.94 markus 1664: break;
1.43 jakob 1665:
1.94 markus 1666: case sSubsystem:
1667: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1668: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1669: filename, linenum);
1.94 markus 1670: }
1671: arg = strdelim(&cp);
1672: if (!arg || *arg == '\0')
1673: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1674: filename, linenum);
1.153 dtucker 1675: if (!*activep) {
1676: arg = strdelim(&cp);
1677: break;
1678: }
1.94 markus 1679: for (i = 0; i < options->num_subsystems; i++)
1680: if (strcmp(arg, options->subsystem_name[i]) == 0)
1681: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1682: filename, linenum, arg);
1.94 markus 1683: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1684: arg = strdelim(&cp);
1685: if (!arg || *arg == '\0')
1686: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1687: filename, linenum);
1.94 markus 1688: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1689:
1690: /* Collect arguments (separate to executable) */
1691: p = xstrdup(arg);
1692: len = strlen(p) + 1;
1693: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1694: len += 1 + strlen(arg);
1.264 deraadt 1695: p = xreallocarray(p, 1, len);
1.151 djm 1696: strlcat(p, " ", len);
1697: strlcat(p, arg, len);
1698: }
1699: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1700: options->num_subsystems++;
1701: break;
1.46 markus 1702:
1.94 markus 1703: case sMaxStartups:
1704: arg = strdelim(&cp);
1705: if (!arg || *arg == '\0')
1706: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1707: filename, linenum);
1.94 markus 1708: if ((n = sscanf(arg, "%d:%d:%d",
1709: &options->max_startups_begin,
1710: &options->max_startups_rate,
1711: &options->max_startups)) == 3) {
1712: if (options->max_startups_begin >
1713: options->max_startups ||
1714: options->max_startups_rate > 100 ||
1715: options->max_startups_rate < 1)
1.50 markus 1716: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1717: filename, linenum);
1.94 markus 1718: } else if (n != 1)
1719: fatal("%s line %d: Illegal MaxStartups spec.",
1720: filename, linenum);
1721: else
1722: options->max_startups = options->max_startups_begin;
1723: break;
1.133 dtucker 1724:
1725: case sMaxAuthTries:
1726: intptr = &options->max_authtries;
1727: goto parse_int;
1.94 markus 1728:
1.180 djm 1729: case sMaxSessions:
1730: intptr = &options->max_sessions;
1731: goto parse_int;
1732:
1.94 markus 1733: case sBanner:
1734: charptr = &options->banner;
1735: goto parse_filename;
1.176 djm 1736:
1.94 markus 1737: /*
1738: * These options can contain %X options expanded at
1739: * connect time, so that you can specify paths like:
1740: *
1741: * AuthorizedKeysFile /etc/ssh_keys/%u
1742: */
1743: case sAuthorizedKeysFile:
1.219 djm 1744: if (*activep && options->num_authkeys_files == 0) {
1745: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.314 djm 1746: arg = tilde_expand_filename(arg, getuid());
1747: array_append(filename, linenum,
1748: "AuthorizedKeysFile",
1749: &options->authorized_keys_files,
1750: &options->num_authkeys_files, arg);
1751: free(arg);
1.219 djm 1752: }
1753: }
1754: return 0;
1755:
1.208 djm 1756: case sAuthorizedPrincipalsFile:
1757: charptr = &options->authorized_principals_file;
1.205 djm 1758: arg = strdelim(&cp);
1759: if (!arg || *arg == '\0')
1760: fatal("%s line %d: missing file name.",
1761: filename, linenum);
1762: if (*activep && *charptr == NULL) {
1.206 markus 1763: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1764: /* increase optional counter */
1765: if (intptr != NULL)
1766: *intptr = *intptr + 1;
1767: }
1768: break;
1.94 markus 1769:
1770: case sClientAliveInterval:
1771: intptr = &options->client_alive_interval;
1772: goto parse_time;
1773:
1774: case sClientAliveCountMax:
1775: intptr = &options->client_alive_count_max;
1776: goto parse_int;
1.131 djm 1777:
1778: case sAcceptEnv:
1779: while ((arg = strdelim(&cp)) && *arg != '\0') {
1780: if (strchr(arg, '=') != NULL)
1781: fatal("%s line %d: Invalid environment name.",
1782: filename, linenum);
1.153 dtucker 1783: if (!*activep)
1.227 markus 1784: continue;
1.314 djm 1785: array_append(filename, linenum, "AcceptEnv",
1786: &options->accept_env, &options->num_accept_env,
1787: arg);
1.131 djm 1788: }
1789: break;
1.145 reyk 1790:
1.332 djm 1791: case sSetEnv:
1792: uvalue = options->num_setenv;
1793: while ((arg = strdelimw(&cp)) && *arg != '\0') {
1794: if (strchr(arg, '=') == NULL)
1795: fatal("%s line %d: Invalid environment.",
1796: filename, linenum);
1797: if (!*activep || uvalue != 0)
1798: continue;
1799: array_append(filename, linenum, "SetEnv",
1800: &options->setenv, &options->num_setenv, arg);
1801: }
1802: break;
1803:
1.145 reyk 1804: case sPermitTunnel:
1805: intptr = &options->permit_tun;
1.146 reyk 1806: arg = strdelim(&cp);
1807: if (!arg || *arg == '\0')
1808: fatal("%s line %d: Missing yes/point-to-point/"
1809: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1810: value = -1;
1811: for (i = 0; tunmode_desc[i].val != -1; i++)
1812: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1813: value = tunmode_desc[i].val;
1814: break;
1815: }
1816: if (value == -1)
1.146 reyk 1817: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1818: "no argument: %s", filename, linenum, arg);
1.268 djm 1819: if (*activep && *intptr == -1)
1.146 reyk 1820: *intptr = value;
1821: break;
1.94 markus 1822:
1.153 dtucker 1823: case sMatch:
1824: if (cmdline)
1825: fatal("Match directive not supported as a command-line "
1826: "option");
1.226 dtucker 1827: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1828: if (value < 0)
1829: fatal("%s line %d: Bad Match condition", filename,
1830: linenum);
1831: *activep = value;
1.156 dtucker 1832: break;
1833:
1.330 djm 1834: case sPermitListen:
1.156 dtucker 1835: case sPermitOpen:
1.330 djm 1836: if (opcode == sPermitListen) {
1837: uintptr = &options->num_permitted_listens;
1838: chararrayptr = &options->permitted_listens;
1.329 djm 1839: } else {
1840: uintptr = &options->num_permitted_opens;
1841: chararrayptr = &options->permitted_opens;
1842: }
1.156 dtucker 1843: arg = strdelim(&cp);
1844: if (!arg || *arg == '\0')
1.329 djm 1845: fatal("%s line %d: missing %s specification",
1846: filename, linenum, lookup_opcode_name(opcode));
1847: uvalue = *uintptr; /* modified later */
1.310 djm 1848: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 1849: if (*activep && uvalue == 0) {
1850: *uintptr = 1;
1851: *chararrayptr = xcalloc(1,
1852: sizeof(**chararrayptr));
1853: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 1854: }
1.156 dtucker 1855: break;
1856: }
1.159 dtucker 1857: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1.333 djm 1858: if (opcode == sPermitListen &&
1859: strchr(arg, ':') == NULL) {
1860: /*
1861: * Allow bare port number for PermitListen
1862: * to indicate a wildcard listen host.
1863: */
1864: xasprintf(&arg2, "*:%s", arg);
1865: } else {
1866: arg2 = xstrdup(arg);
1867: p = hpdelim(&arg);
1868: if (p == NULL) {
1869: fatal("%s line %d: missing host in %s",
1870: filename, linenum,
1871: lookup_opcode_name(opcode));
1872: }
1873: p = cleanhostname(p);
1.329 djm 1874: }
1875: if (arg == NULL ||
1876: ((port = permitopen_port(arg)) < 0)) {
1877: fatal("%s line %d: bad port number in %s",
1878: filename, linenum,
1879: lookup_opcode_name(opcode));
1880: }
1881: if (*activep && uvalue == 0) {
1.314 djm 1882: array_append(filename, linenum,
1.329 djm 1883: lookup_opcode_name(opcode),
1884: chararrayptr, uintptr, arg2);
1.314 djm 1885: }
1886: free(arg2);
1.159 dtucker 1887: }
1.153 dtucker 1888: break;
1889:
1.158 dtucker 1890: case sForceCommand:
1.262 dtucker 1891: if (cp == NULL || *cp == '\0')
1.158 dtucker 1892: fatal("%.200s line %d: Missing argument.", filename,
1893: linenum);
1894: len = strspn(cp, WHITESPACE);
1895: if (*activep && options->adm_forced_command == NULL)
1896: options->adm_forced_command = xstrdup(cp + len);
1897: return 0;
1898:
1.176 djm 1899: case sChrootDirectory:
1900: charptr = &options->chroot_directory;
1.177 djm 1901:
1902: arg = strdelim(&cp);
1903: if (!arg || *arg == '\0')
1904: fatal("%s line %d: missing file name.",
1905: filename, linenum);
1906: if (*activep && *charptr == NULL)
1907: *charptr = xstrdup(arg);
1908: break;
1.176 djm 1909:
1.204 djm 1910: case sTrustedUserCAKeys:
1911: charptr = &options->trusted_user_ca_keys;
1912: goto parse_filename;
1913:
1914: case sRevokedKeys:
1915: charptr = &options->revoked_keys_file;
1916: goto parse_filename;
1917:
1.213 djm 1918: case sIPQoS:
1919: arg = strdelim(&cp);
1920: if ((value = parse_ipqos(arg)) == -1)
1921: fatal("%s line %d: Bad IPQoS value: %s",
1922: filename, linenum, arg);
1923: arg = strdelim(&cp);
1924: if (arg == NULL)
1925: value2 = value;
1926: else if ((value2 = parse_ipqos(arg)) == -1)
1927: fatal("%s line %d: Bad IPQoS value: %s",
1928: filename, linenum, arg);
1929: if (*activep) {
1930: options->ip_qos_interactive = value;
1931: options->ip_qos_bulk = value2;
1932: }
1933: break;
1934:
1.225 djm 1935: case sVersionAddendum:
1.262 dtucker 1936: if (cp == NULL || *cp == '\0')
1.225 djm 1937: fatal("%.200s line %d: Missing argument.", filename,
1938: linenum);
1939: len = strspn(cp, WHITESPACE);
1940: if (*activep && options->version_addendum == NULL) {
1941: if (strcasecmp(cp + len, "none") == 0)
1942: options->version_addendum = xstrdup("");
1943: else if (strchr(cp + len, '\r') != NULL)
1944: fatal("%.200s line %d: Invalid argument",
1945: filename, linenum);
1946: else
1947: options->version_addendum = xstrdup(cp + len);
1948: }
1949: return 0;
1950:
1.231 djm 1951: case sAuthorizedKeysCommand:
1.255 jsg 1952: if (cp == NULL)
1953: fatal("%.200s line %d: Missing argument.", filename,
1954: linenum);
1.231 djm 1955: len = strspn(cp, WHITESPACE);
1956: if (*activep && options->authorized_keys_command == NULL) {
1957: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1958: fatal("%.200s line %d: AuthorizedKeysCommand "
1959: "must be an absolute path",
1960: filename, linenum);
1961: options->authorized_keys_command = xstrdup(cp + len);
1962: }
1963: return 0;
1964:
1965: case sAuthorizedKeysCommandUser:
1966: charptr = &options->authorized_keys_command_user;
1967:
1968: arg = strdelim(&cp);
1.255 jsg 1969: if (!arg || *arg == '\0')
1970: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1971: "argument.", filename, linenum);
1.231 djm 1972: if (*activep && *charptr == NULL)
1973: *charptr = xstrdup(arg);
1974: break;
1975:
1.270 djm 1976: case sAuthorizedPrincipalsCommand:
1977: if (cp == NULL)
1978: fatal("%.200s line %d: Missing argument.", filename,
1979: linenum);
1980: len = strspn(cp, WHITESPACE);
1981: if (*activep &&
1982: options->authorized_principals_command == NULL) {
1983: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1984: fatal("%.200s line %d: "
1985: "AuthorizedPrincipalsCommand must be "
1986: "an absolute path", filename, linenum);
1987: options->authorized_principals_command =
1988: xstrdup(cp + len);
1989: }
1990: return 0;
1991:
1992: case sAuthorizedPrincipalsCommandUser:
1993: charptr = &options->authorized_principals_command_user;
1994:
1995: arg = strdelim(&cp);
1996: if (!arg || *arg == '\0')
1997: fatal("%s line %d: missing "
1998: "AuthorizedPrincipalsCommandUser argument.",
1999: filename, linenum);
2000: if (*activep && *charptr == NULL)
2001: *charptr = xstrdup(arg);
2002: break;
2003:
1.232 djm 2004: case sAuthenticationMethods:
1.268 djm 2005: if (options->num_auth_methods == 0) {
1.291 djm 2006: value = 0; /* seen "any" pseudo-method */
1.328 djm 2007: value2 = 0; /* successfully parsed any method */
1.232 djm 2008: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.291 djm 2009: if (strcmp(arg, "any") == 0) {
2010: if (options->num_auth_methods > 0) {
2011: fatal("%s line %d: \"any\" "
2012: "must appear alone in "
2013: "AuthenticationMethods",
2014: filename, linenum);
2015: }
2016: value = 1;
2017: } else if (value) {
2018: fatal("%s line %d: \"any\" must appear "
2019: "alone in AuthenticationMethods",
2020: filename, linenum);
2021: } else if (auth2_methods_valid(arg, 0) != 0) {
1.232 djm 2022: fatal("%s line %d: invalid "
2023: "authentication method list.",
2024: filename, linenum);
1.291 djm 2025: }
1.292 djm 2026: value2 = 1;
1.268 djm 2027: if (!*activep)
2028: continue;
1.314 djm 2029: array_append(filename, linenum,
2030: "AuthenticationMethods",
2031: &options->auth_methods,
2032: &options->num_auth_methods, arg);
1.232 djm 2033: }
1.292 djm 2034: if (value2 == 0) {
1.291 djm 2035: fatal("%s line %d: no AuthenticationMethods "
2036: "specified", filename, linenum);
2037: }
1.232 djm 2038: }
2039: return 0;
2040:
1.251 millert 2041: case sStreamLocalBindMask:
2042: arg = strdelim(&cp);
2043: if (!arg || *arg == '\0')
1.268 djm 2044: fatal("%s line %d: missing StreamLocalBindMask "
2045: "argument.", filename, linenum);
1.251 millert 2046: /* Parse mode in octal format */
2047: value = strtol(arg, &p, 8);
2048: if (arg == p || value < 0 || value > 0777)
2049: fatal("%s line %d: Bad mask.", filename, linenum);
1.268 djm 2050: if (*activep)
2051: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2052: break;
2053:
2054: case sStreamLocalBindUnlink:
2055: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2056: goto parse_flag;
2057:
1.256 djm 2058: case sFingerprintHash:
2059: arg = strdelim(&cp);
2060: if (!arg || *arg == '\0')
2061: fatal("%.200s line %d: Missing argument.",
2062: filename, linenum);
2063: if ((value = ssh_digest_alg_by_name(arg)) == -1)
2064: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
2065: filename, linenum, arg);
2066: if (*activep)
2067: options->fingerprint_hash = value;
2068: break;
2069:
1.309 djm 2070: case sExposeAuthInfo:
2071: intptr = &options->expose_userauth_info;
2072: goto parse_flag;
2073:
1.316 djm 2074: case sRDomain:
2075: charptr = &options->routing_domain;
2076: arg = strdelim(&cp);
2077: if (!arg || *arg == '\0')
2078: fatal("%.200s line %d: Missing argument.",
2079: filename, linenum);
2080: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2081: !valid_rdomain(arg))
2082: fatal("%s line %d: bad routing domain",
2083: filename, linenum);
2084: if (*activep && *charptr == NULL)
2085: *charptr = xstrdup(arg);
1.321 dtucker 2086: break;
1.316 djm 2087:
1.94 markus 2088: case sDeprecated:
1.295 djm 2089: case sIgnore:
1.121 jakob 2090: case sUnsupported:
1.295 djm 2091: do_log2(opcode == sIgnore ?
2092: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2093: "%s line %d: %s option %s", filename, linenum,
2094: opcode == sUnsupported ? "Unsupported" : "Deprecated", arg);
1.94 markus 2095: while (arg)
2096: arg = strdelim(&cp);
2097: break;
2098:
2099: default:
2100: fatal("%s line %d: Missing handler for opcode %s (%d)",
2101: filename, linenum, arg, opcode);
2102: }
2103: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
2104: fatal("%s line %d: garbage at end of line; \"%.200s\".",
2105: filename, linenum, arg);
2106: return 0;
2107: }
2108:
2109: /* Reads the server configuration file. */
1.25 markus 2110:
1.94 markus 2111: void
1.338 markus 2112: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2113: {
1.331 markus 2114: char *line = NULL, *cp;
2115: size_t linesize = 0;
1.94 markus 2116: FILE *f;
1.338 markus 2117: int r, lineno = 0;
1.81 stevesk 2118:
1.134 djm 2119: debug2("%s: filename %s", __func__, filename);
2120: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2121: perror(filename);
2122: exit(1);
2123: }
1.338 markus 2124: sshbuf_reset(conf);
1.331 markus 2125: while (getline(&line, &linesize, f) != -1) {
1.229 dtucker 2126: lineno++;
1.134 djm 2127: /*
2128: * Trim out comments and strip whitespace
1.135 deraadt 2129: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2130: * line numbers later for error messages
2131: */
2132: if ((cp = strchr(line, '#')) != NULL)
2133: memcpy(cp, "\n", 2);
2134: cp = line + strspn(line, " \t\r");
1.338 markus 2135: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
2136: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2137: }
1.331 markus 2138: free(line);
1.338 markus 2139: if ((r = sshbuf_put_u8(conf, 0)) != 0)
2140: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2141: fclose(f);
1.338 markus 2142: debug2("%s: done config len = %zu", __func__, sshbuf_len(conf));
1.134 djm 2143: }
2144:
2145: void
1.226 dtucker 2146: parse_server_match_config(ServerOptions *options,
2147: struct connection_info *connectinfo)
1.153 dtucker 2148: {
2149: ServerOptions mo;
2150:
2151: initialize_server_options(&mo);
1.338 markus 2152: parse_server_config(&mo, "reprocess config", cfg, connectinfo);
1.168 dtucker 2153: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2154: }
2155:
1.226 dtucker 2156: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2157: {
2158: char *p;
2159:
2160: while ((p = strsep(&spec, ",")) && *p != '\0') {
2161: if (strncmp(p, "addr=", 5) == 0) {
2162: ci->address = xstrdup(p + 5);
2163: } else if (strncmp(p, "host=", 5) == 0) {
2164: ci->host = xstrdup(p + 5);
2165: } else if (strncmp(p, "user=", 5) == 0) {
2166: ci->user = xstrdup(p + 5);
2167: } else if (strncmp(p, "laddr=", 6) == 0) {
2168: ci->laddress = xstrdup(p + 6);
1.317 djm 2169: } else if (strncmp(p, "rdomain=", 8) == 0) {
2170: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2171: } else if (strncmp(p, "lport=", 6) == 0) {
2172: ci->lport = a2port(p + 6);
2173: if (ci->lport == -1) {
2174: fprintf(stderr, "Invalid port '%s' in test mode"
2175: " specification %s\n", p+6, p);
2176: return -1;
2177: }
2178: } else {
2179: fprintf(stderr, "Invalid test mode specification %s\n",
2180: p);
2181: return -1;
2182: }
2183: }
2184: return 0;
2185: }
2186:
1.168 dtucker 2187: /*
2188: * Copy any supported values that are set.
2189: *
1.195 jj 2190: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2191: * array values that are not used pre-authentication, because any that we
1.328 djm 2192: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2193: */
1.153 dtucker 2194: void
1.168 dtucker 2195: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2196: {
1.247 djm 2197: #define M_CP_INTOPT(n) do {\
2198: if (src->n != -1) \
2199: dst->n = src->n; \
2200: } while (0)
2201:
1.168 dtucker 2202: M_CP_INTOPT(password_authentication);
2203: M_CP_INTOPT(gss_authentication);
2204: M_CP_INTOPT(pubkey_authentication);
2205: M_CP_INTOPT(kerberos_authentication);
2206: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2207: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2208: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2209: M_CP_INTOPT(permit_root_login);
1.188 djm 2210: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 2211:
2212: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2213: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2214: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2215: M_CP_INTOPT(disable_forwarding);
1.309 djm 2216: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2217: M_CP_INTOPT(permit_tun);
1.251 millert 2218: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2219: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2220: M_CP_INTOPT(x11_display_offset);
2221: M_CP_INTOPT(x11_forwarding);
2222: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2223: M_CP_INTOPT(permit_tty);
1.250 djm 2224: M_CP_INTOPT(permit_user_rc);
1.180 djm 2225: M_CP_INTOPT(max_sessions);
1.184 dtucker 2226: M_CP_INTOPT(max_authtries);
1.300 markus 2227: M_CP_INTOPT(client_alive_count_max);
2228: M_CP_INTOPT(client_alive_interval);
1.213 djm 2229: M_CP_INTOPT(ip_qos_interactive);
2230: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2231: M_CP_INTOPT(rekey_limit);
2232: M_CP_INTOPT(rekey_interval);
1.308 djm 2233: M_CP_INTOPT(log_level);
1.289 djm 2234:
2235: /*
2236: * The bind_mask is a mode_t that may be unsigned, so we can't use
2237: * M_CP_INTOPT - it does a signed comparison that causes compiler
2238: * warnings.
2239: */
1.290 dtucker 2240: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2241: dst->fwd_opts.streamlocal_bind_mask =
2242: src->fwd_opts.streamlocal_bind_mask;
2243: }
1.247 djm 2244:
2245: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2246: #define M_CP_STROPT(n) do {\
2247: if (src->n != NULL && dst->n != src->n) { \
2248: free(dst->n); \
2249: dst->n = src->n; \
2250: } \
2251: } while(0)
1.314 djm 2252: #define M_CP_STRARRAYOPT(s, num_s) do {\
2253: u_int i; \
2254: if (src->num_s != 0) { \
2255: for (i = 0; i < dst->num_s; i++) \
2256: free(dst->s[i]); \
2257: free(dst->s); \
2258: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2259: for (i = 0; i < src->num_s; i++) \
2260: dst->s[i] = xstrdup(src->s[i]); \
2261: dst->num_s = src->num_s; \
1.312 djm 2262: } \
2263: } while(0)
1.168 dtucker 2264:
1.218 djm 2265: /* See comment in servconf.h */
2266: COPY_MATCH_STRING_OPTS();
1.282 djm 2267:
2268: /* Arguments that accept '+...' need to be expanded */
2269: assemble_algorithms(dst);
1.216 djm 2270:
1.217 dtucker 2271: /*
2272: * The only things that should be below this point are string options
2273: * which are only used after authentication.
2274: */
1.168 dtucker 2275: if (preauth)
2276: return;
1.219 djm 2277:
1.283 djm 2278: /* These options may be "none" to clear a global setting */
1.168 dtucker 2279: M_CP_STROPT(adm_forced_command);
1.283 djm 2280: if (option_clear_or_none(dst->adm_forced_command)) {
2281: free(dst->adm_forced_command);
2282: dst->adm_forced_command = NULL;
2283: }
1.176 djm 2284: M_CP_STROPT(chroot_directory);
1.283 djm 2285: if (option_clear_or_none(dst->chroot_directory)) {
2286: free(dst->chroot_directory);
2287: dst->chroot_directory = NULL;
2288: }
1.153 dtucker 2289: }
1.168 dtucker 2290:
2291: #undef M_CP_INTOPT
2292: #undef M_CP_STROPT
1.219 djm 2293: #undef M_CP_STRARRAYOPT
1.153 dtucker 2294:
2295: void
1.338 markus 2296: parse_server_config(ServerOptions *options, const char *filename,
2297: struct sshbuf *conf, struct connection_info *connectinfo)
1.134 djm 2298: {
1.153 dtucker 2299: int active, linenum, bad_options = 0;
1.136 dtucker 2300: char *cp, *obuf, *cbuf;
1.134 djm 2301:
1.338 markus 2302: debug2("%s: config %s len %zu", __func__, filename, sshbuf_len(conf));
1.134 djm 2303:
1.287 djm 2304: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
2305: fatal("%s: sshbuf_dup_string failed", __func__);
1.226 dtucker 2306: active = connectinfo ? 0 : 1;
1.137 dtucker 2307: linenum = 1;
1.140 deraadt 2308: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 2309: if (process_server_config_line(options, cp, filename,
1.226 dtucker 2310: linenum++, &active, connectinfo) != 0)
1.94 markus 2311: bad_options++;
1.1 deraadt 2312: }
1.239 djm 2313: free(obuf);
1.78 stevesk 2314: if (bad_options > 0)
2315: fatal("%s: terminating, %d bad configuration options",
2316: filename, bad_options);
1.266 dtucker 2317: process_queued_listen_addrs(options);
1.182 dtucker 2318: }
2319:
2320: static const char *
1.221 djm 2321: fmt_multistate_int(int val, const struct multistate *m)
2322: {
2323: u_int i;
2324:
2325: for (i = 0; m[i].key != NULL; i++) {
2326: if (m[i].value == val)
2327: return m[i].key;
2328: }
2329: return "UNKNOWN";
2330: }
2331:
2332: static const char *
1.182 dtucker 2333: fmt_intarg(ServerOpCodes code, int val)
2334: {
1.221 djm 2335: if (val == -1)
2336: return "unset";
2337: switch (code) {
2338: case sAddressFamily:
2339: return fmt_multistate_int(val, multistate_addressfamily);
2340: case sPermitRootLogin:
2341: return fmt_multistate_int(val, multistate_permitrootlogin);
2342: case sGatewayPorts:
2343: return fmt_multistate_int(val, multistate_gatewayports);
2344: case sCompression:
2345: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2346: case sAllowTcpForwarding:
2347: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2348: case sAllowStreamLocalForwarding:
2349: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 2350: case sFingerprintHash:
2351: return ssh_digest_alg_name(val);
1.221 djm 2352: default:
2353: switch (val) {
2354: case 0:
2355: return "no";
2356: case 1:
2357: return "yes";
2358: default:
2359: return "UNKNOWN";
2360: }
1.182 dtucker 2361: }
2362: }
2363:
2364: static void
2365: dump_cfg_int(ServerOpCodes code, int val)
2366: {
2367: printf("%s %d\n", lookup_opcode_name(code), val);
2368: }
2369:
2370: static void
1.263 dtucker 2371: dump_cfg_oct(ServerOpCodes code, int val)
2372: {
2373: printf("%s 0%o\n", lookup_opcode_name(code), val);
2374: }
2375:
2376: static void
1.182 dtucker 2377: dump_cfg_fmtint(ServerOpCodes code, int val)
2378: {
2379: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2380: }
2381:
2382: static void
2383: dump_cfg_string(ServerOpCodes code, const char *val)
2384: {
1.257 djm 2385: printf("%s %s\n", lookup_opcode_name(code),
2386: val == NULL ? "none" : val);
1.182 dtucker 2387: }
2388:
2389: static void
2390: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2391: {
2392: u_int i;
2393:
2394: for (i = 0; i < count; i++)
1.219 djm 2395: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2396: }
2397:
2398: static void
2399: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2400: {
2401: u_int i;
2402:
1.291 djm 2403: if (count <= 0 && code != sAuthenticationMethods)
1.261 dtucker 2404: return;
1.219 djm 2405: printf("%s", lookup_opcode_name(code));
2406: for (i = 0; i < count; i++)
2407: printf(" %s", vals[i]);
1.291 djm 2408: if (code == sAuthenticationMethods && count == 0)
2409: printf(" any");
1.219 djm 2410: printf("\n");
1.182 dtucker 2411: }
2412:
1.315 djm 2413: static char *
2414: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2415: {
1.315 djm 2416: int r;
1.182 dtucker 2417: struct addrinfo *ai;
1.315 djm 2418: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2419: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2420:
1.263 dtucker 2421: /*
2422: * ListenAddress must be after Port. add_one_listen_addr pushes
2423: * addresses onto a stack, so to maintain ordering we need to
2424: * print these in reverse order.
2425: */
1.315 djm 2426: for (ai = la->addrs; ai; ai = ai->ai_next) {
2427: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2428: sizeof(addr), port, sizeof(port),
2429: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2430: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2431: continue;
2432: }
2433: laddr2 = laddr1;
2434: if (ai->ai_family == AF_INET6) {
2435: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2436: addr, port,
2437: la->rdomain == NULL ? "" : " rdomain ",
2438: la->rdomain == NULL ? "" : la->rdomain,
2439: laddr2);
1.182 dtucker 2440: } else {
1.315 djm 2441: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2442: addr, port,
2443: la->rdomain == NULL ? "" : " rdomain ",
2444: la->rdomain == NULL ? "" : la->rdomain,
2445: laddr2);
1.182 dtucker 2446: }
1.315 djm 2447: free(laddr2);
2448: }
2449: return laddr1;
2450: }
2451:
2452: void
2453: dump_config(ServerOptions *o)
2454: {
2455: char *s;
2456: u_int i;
2457:
2458: /* these are usually at the top of the config */
2459: for (i = 0; i < o->num_ports; i++)
2460: printf("port %d\n", o->ports[i]);
2461: dump_cfg_fmtint(sAddressFamily, o->address_family);
2462:
2463: for (i = 0; i < o->num_listen_addrs; i++) {
2464: s = format_listen_addrs(&o->listen_addrs[i]);
2465: printf("%s", s);
2466: free(s);
1.182 dtucker 2467: }
2468:
2469: /* integer arguments */
2470: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2471: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2472: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2473: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2474: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2475: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2476: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2477:
2478: /* formatted integer arguments */
2479: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2480: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2481: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2482: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2483: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2484: o->hostbased_uses_name_from_packet_only);
2485: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2486: #ifdef KRB5
1.182 dtucker 2487: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2488: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2489: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2490: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2491: #endif
2492: #ifdef GSSAPI
1.182 dtucker 2493: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2494: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2495: #endif
1.182 dtucker 2496: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2497: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2498: o->kbd_interactive_authentication);
2499: dump_cfg_fmtint(sChallengeResponseAuthentication,
2500: o->challenge_response_authentication);
2501: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2502: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2503: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2504: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2505: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2506: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2507: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2508: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2509: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2510: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2511: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2512: dump_cfg_fmtint(sUseDNS, o->use_dns);
2513: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2514: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2515: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2516: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2517: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2518: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2519: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2520:
2521: /* string arguments */
2522: dump_cfg_string(sPidFile, o->pid_file);
2523: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2524: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2525: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2526: dump_cfg_string(sBanner, o->banner);
2527: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2528: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2529: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2530: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2531: dump_cfg_string(sAuthorizedPrincipalsFile,
2532: o->authorized_principals_file);
1.261 dtucker 2533: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2534: ? "none" : o->version_addendum);
1.231 djm 2535: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2536: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 2537: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
2538: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 2539: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2540: dump_cfg_string(sKexAlgorithms,
1.253 djm 2541: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.341 ! djm 2542: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms ?
! 2543: o->ca_sign_algorithms : SSH_ALLOWED_CA_SIGALGS);
1.258 djm 2544: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2545: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
1.276 markus 2546: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms ?
2547: o->hostkeyalgorithms : KEX_DEFAULT_PK_ALG);
1.258 djm 2548: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2549: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.316 djm 2550: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 2551:
2552: /* string arguments requiring a lookup */
2553: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2554: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2555:
2556: /* string array arguments */
1.219 djm 2557: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2558: o->authorized_keys_files);
1.182 dtucker 2559: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2560: o->host_key_files);
1.261 dtucker 2561: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2562: o->host_cert_files);
1.182 dtucker 2563: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2564: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2565: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2566: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2567: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 2568: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 2569: dump_cfg_strarray_oneline(sAuthenticationMethods,
2570: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2571:
2572: /* other arguments */
2573: for (i = 0; i < o->num_subsystems; i++)
2574: printf("subsystem %s %s\n", o->subsystem_name[i],
2575: o->subsystem_args[i]);
2576:
2577: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2578: o->max_startups_rate, o->max_startups);
2579:
1.318 djm 2580: s = NULL;
2581: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 2582: if (tunmode_desc[i].val == o->permit_tun) {
2583: s = tunmode_desc[i].text;
2584: break;
2585: }
1.318 djm 2586: }
1.182 dtucker 2587: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2588:
1.214 stevesk 2589: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2590: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2591:
1.284 dtucker 2592: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 2593: o->rekey_interval);
1.182 dtucker 2594:
1.310 djm 2595: printf("permitopen");
2596: if (o->num_permitted_opens == 0)
2597: printf(" any");
2598: else {
2599: for (i = 0; i < o->num_permitted_opens; i++)
2600: printf(" %s", o->permitted_opens[i]);
1.329 djm 2601: }
2602: printf("\n");
1.330 djm 2603: printf("permitlisten");
2604: if (o->num_permitted_listens == 0)
1.329 djm 2605: printf(" any");
2606: else {
1.330 djm 2607: for (i = 0; i < o->num_permitted_listens; i++)
2608: printf(" %s", o->permitted_listens[i]);
1.310 djm 2609: }
2610: printf("\n");
1.334 djm 2611:
2612: if (o->permit_user_env_whitelist == NULL) {
2613: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2614: } else {
2615: printf("permituserenvironment %s\n",
2616: o->permit_user_env_whitelist);
2617: }
2618:
1.1 deraadt 2619: }
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