Annotation of src/usr.bin/ssh/servconf.c, Revision 1.342
1.226 dtucker 1:
1.342 ! djm 2: /* $OpenBSD: servconf.c,v 1.341 2018/09/20 03:28:06 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 },
1.342 ! djm 597: { "casignaturealgorithms", sCASignatureAlgorithms, SSHCFG_ALL },
1.153 dtucker 598: { NULL, sBadOption, 0 }
1.1 deraadt 599: };
600:
1.182 dtucker 601: static struct {
602: int val;
603: char *text;
604: } tunmode_desc[] = {
605: { SSH_TUNMODE_NO, "no" },
606: { SSH_TUNMODE_POINTOPOINT, "point-to-point" },
607: { SSH_TUNMODE_ETHERNET, "ethernet" },
608: { SSH_TUNMODE_YES, "yes" },
609: { -1, NULL }
610: };
611:
1.329 djm 612: /* Returns an opcode name from its number */
613:
614: static const char *
615: lookup_opcode_name(ServerOpCodes code)
616: {
617: u_int i;
618:
619: for (i = 0; keywords[i].name != NULL; i++)
620: if (keywords[i].opcode == code)
621: return(keywords[i].name);
622: return "UNKNOWN";
623: }
624:
625:
1.27 markus 626: /*
1.73 stevesk 627: * Returns the number of the token pointed to by cp or sBadOption.
1.27 markus 628: */
1.1 deraadt 629:
1.34 markus 630: static ServerOpCodes
1.25 markus 631: parse_token(const char *cp, const char *filename,
1.153 dtucker 632: int linenum, u_int *flags)
1.1 deraadt 633: {
1.55 markus 634: u_int i;
1.1 deraadt 635:
1.25 markus 636: for (i = 0; keywords[i].name; i++)
1.153 dtucker 637: if (strcasecmp(cp, keywords[i].name) == 0) {
638: *flags = keywords[i].flags;
1.25 markus 639: return keywords[i].opcode;
1.153 dtucker 640: }
1.25 markus 641:
1.78 stevesk 642: error("%s: line %d: Bad configuration option: %s",
643: filename, linenum, cp);
1.25 markus 644: return sBadOption;
1.1 deraadt 645: }
646:
1.202 djm 647: char *
648: derelativise_path(const char *path)
649: {
1.259 deraadt 650: char *expanded, *ret, cwd[PATH_MAX];
1.202 djm 651:
1.257 djm 652: if (strcasecmp(path, "none") == 0)
653: return xstrdup("none");
1.202 djm 654: expanded = tilde_expand_filename(path, getuid());
655: if (*expanded == '/')
656: return expanded;
1.207 djm 657: if (getcwd(cwd, sizeof(cwd)) == NULL)
1.202 djm 658: fatal("%s: getcwd: %s", __func__, strerror(errno));
659: xasprintf(&ret, "%s/%s", cwd, expanded);
1.239 djm 660: free(expanded);
1.202 djm 661: return ret;
662: }
663:
1.84 itojun 664: static void
1.315 djm 665: add_listen_addr(ServerOptions *options, const char *addr,
666: const char *rdomain, int port)
1.74 stevesk 667: {
1.142 djm 668: u_int i;
1.74 stevesk 669:
1.315 djm 670: if (port > 0)
671: add_one_listen_addr(options, addr, rdomain, port);
672: else {
673: for (i = 0; i < options->num_ports; i++) {
674: add_one_listen_addr(options, addr, rdomain,
675: options->ports[i]);
676: }
677: }
1.74 stevesk 678: }
679:
1.84 itojun 680: static void
1.315 djm 681: add_one_listen_addr(ServerOptions *options, const char *addr,
682: const char *rdomain, int port)
1.29 markus 683: {
684: struct addrinfo hints, *ai, *aitop;
685: char strport[NI_MAXSERV];
686: int gaierr;
1.315 djm 687: u_int i;
688:
689: /* Find listen_addrs entry for this rdomain */
690: for (i = 0; i < options->num_listen_addrs; i++) {
691: if (rdomain == NULL && options->listen_addrs[i].rdomain == NULL)
692: break;
693: if (rdomain == NULL || options->listen_addrs[i].rdomain == NULL)
694: continue;
695: if (strcmp(rdomain, options->listen_addrs[i].rdomain) == 0)
696: break;
697: }
698: if (i >= options->num_listen_addrs) {
699: /* No entry for this rdomain; allocate one */
700: if (i >= INT_MAX)
701: fatal("%s: too many listen addresses", __func__);
702: options->listen_addrs = xrecallocarray(options->listen_addrs,
703: options->num_listen_addrs, options->num_listen_addrs + 1,
704: sizeof(*options->listen_addrs));
705: i = options->num_listen_addrs++;
706: if (rdomain != NULL)
707: options->listen_addrs[i].rdomain = xstrdup(rdomain);
708: }
709: /* options->listen_addrs[i] points to the addresses for this rdomain */
1.29 markus 710:
1.74 stevesk 711: memset(&hints, 0, sizeof(hints));
1.138 djm 712: hints.ai_family = options->address_family;
1.74 stevesk 713: hints.ai_socktype = SOCK_STREAM;
714: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
1.194 djm 715: snprintf(strport, sizeof strport, "%d", port);
1.74 stevesk 716: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
717: fatal("bad addr or host: %s (%s)",
718: addr ? addr : "<NULL>",
1.173 dtucker 719: ssh_gai_strerror(gaierr));
1.74 stevesk 720: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
721: ;
1.315 djm 722: ai->ai_next = options->listen_addrs[i].addrs;
723: options->listen_addrs[i].addrs = aitop;
724: }
725:
726: /* Returns nonzero if the routing domain name is valid */
727: static int
728: valid_rdomain(const char *name)
729: {
730: const char *errstr;
731: long long num;
732: struct rt_tableinfo info;
733: int mib[6];
734: size_t miblen = sizeof(mib);
735:
736: if (name == NULL)
737: return 1;
738:
739: num = strtonum(name, 0, 255, &errstr);
740: if (errstr != NULL)
741: return 0;
742:
743: /* Check whether the table actually exists */
744: memset(mib, 0, sizeof(mib));
745: mib[0] = CTL_NET;
746: mib[1] = PF_ROUTE;
747: mib[4] = NET_RT_TABLE;
748: mib[5] = (int)num;
749: if (sysctl(mib, 6, &info, &miblen, NULL, 0) == -1)
750: return 0;
751:
752: return 1;
1.29 markus 753: }
754:
1.266 dtucker 755: /*
756: * Queue a ListenAddress to be processed once we have all of the Ports
757: * and AddressFamily options.
758: */
759: static void
1.315 djm 760: queue_listen_addr(ServerOptions *options, const char *addr,
761: const char *rdomain, int port)
1.266 dtucker 762: {
1.315 djm 763: struct queued_listenaddr *qla;
764:
765: options->queued_listen_addrs = xrecallocarray(
766: options->queued_listen_addrs,
767: options->num_queued_listens, options->num_queued_listens + 1,
768: sizeof(*options->queued_listen_addrs));
769: qla = &options->queued_listen_addrs[options->num_queued_listens++];
770: qla->addr = xstrdup(addr);
771: qla->port = port;
772: qla->rdomain = rdomain == NULL ? NULL : xstrdup(rdomain);
1.266 dtucker 773: }
774:
775: /*
776: * Process queued (text) ListenAddress entries.
777: */
778: static void
779: process_queued_listen_addrs(ServerOptions *options)
780: {
781: u_int i;
1.315 djm 782: struct queued_listenaddr *qla;
1.266 dtucker 783:
784: if (options->num_ports == 0)
785: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
786: if (options->address_family == -1)
787: options->address_family = AF_UNSPEC;
788:
789: for (i = 0; i < options->num_queued_listens; i++) {
1.315 djm 790: qla = &options->queued_listen_addrs[i];
791: add_listen_addr(options, qla->addr, qla->rdomain, qla->port);
792: free(qla->addr);
793: free(qla->rdomain);
1.266 dtucker 794: }
795: free(options->queued_listen_addrs);
796: options->queued_listen_addrs = NULL;
797: options->num_queued_listens = 0;
798: }
799:
1.310 djm 800: /*
1.329 djm 801: * Inform channels layer of permitopen options for a single forwarding
802: * direction (local/remote).
1.310 djm 803: */
1.329 djm 804: static void
805: process_permitopen_list(struct ssh *ssh, ServerOpCodes opcode,
806: char **opens, u_int num_opens)
1.310 djm 807: {
808: u_int i;
809: int port;
810: char *host, *arg, *oarg;
1.329 djm 811: int where = opcode == sPermitOpen ? FORWARD_LOCAL : FORWARD_REMOTE;
812: const char *what = lookup_opcode_name(opcode);
1.310 djm 813:
1.329 djm 814: channel_clear_permission(ssh, FORWARD_ADM, where);
815: if (num_opens == 0)
1.310 djm 816: return; /* permit any */
817:
818: /* handle keywords: "any" / "none" */
1.329 djm 819: if (num_opens == 1 && strcmp(opens[0], "any") == 0)
1.310 djm 820: return;
1.329 djm 821: if (num_opens == 1 && strcmp(opens[0], "none") == 0) {
822: channel_disable_admin(ssh, where);
1.310 djm 823: return;
824: }
825: /* Otherwise treat it as a list of permitted host:port */
1.329 djm 826: for (i = 0; i < num_opens; i++) {
827: oarg = arg = xstrdup(opens[i]);
1.310 djm 828: host = hpdelim(&arg);
829: if (host == NULL)
1.329 djm 830: fatal("%s: missing host in %s", __func__, what);
1.310 djm 831: host = cleanhostname(host);
832: if (arg == NULL || ((port = permitopen_port(arg)) < 0))
1.329 djm 833: fatal("%s: bad port number in %s", __func__, what);
1.310 djm 834: /* Send it to channels layer */
1.329 djm 835: channel_add_permission(ssh, FORWARD_ADM,
836: where, host, port);
1.310 djm 837: free(oarg);
838: }
839: }
840:
1.329 djm 841: /*
842: * Inform channels layer of permitopen options from configuration.
843: */
844: void
845: process_permitopen(struct ssh *ssh, ServerOptions *options)
846: {
847: process_permitopen_list(ssh, sPermitOpen,
848: options->permitted_opens, options->num_permitted_opens);
1.330 djm 849: process_permitopen_list(ssh, sPermitListen,
850: options->permitted_listens,
851: options->num_permitted_listens);
1.329 djm 852: }
853:
1.226 dtucker 854: struct connection_info *
855: get_connection_info(int populate, int use_dns)
856: {
1.286 djm 857: struct ssh *ssh = active_state; /* XXX */
1.226 dtucker 858: static struct connection_info ci;
859:
860: if (!populate)
861: return &ci;
1.286 djm 862: ci.host = auth_get_canonical_hostname(ssh, use_dns);
863: ci.address = ssh_remote_ipaddr(ssh);
864: ci.laddress = ssh_local_ipaddr(ssh);
865: ci.lport = ssh_local_port(ssh);
1.317 djm 866: ci.rdomain = ssh_packet_rdomain_in(ssh);
1.226 dtucker 867: return &ci;
868: }
869:
1.153 dtucker 870: /*
871: * The strategy for the Match blocks is that the config file is parsed twice.
872: *
873: * The first time is at startup. activep is initialized to 1 and the
874: * directives in the global context are processed and acted on. Hitting a
875: * Match directive unsets activep and the directives inside the block are
876: * checked for syntax only.
877: *
878: * The second time is after a connection has been established but before
879: * authentication. activep is initialized to 2 and global config directives
880: * are ignored since they have already been processed. If the criteria in a
881: * Match block is met, activep is set and the subsequent directives
882: * processed and actioned until EOF or another Match block unsets it. Any
883: * options set are copied into the main server config.
884: *
885: * Potential additions/improvements:
1.295 djm 886: * - Add Match support for pre-kex directives, eg. Ciphers.
1.153 dtucker 887: *
888: * - Add a Tag directive (idea from David Leonard) ala pf, eg:
889: * Match Address 192.168.0.*
890: * Tag trusted
891: * Match Group wheel
892: * Tag trusted
893: * Match Tag trusted
894: * AllowTcpForwarding yes
895: * GatewayPorts clientspecified
896: * [...]
897: *
898: * - Add a PermittedChannelRequests directive
899: * Match Group shell
900: * PermittedChannelRequests session,forwarded-tcpip
901: */
902:
903: static int
1.165 dtucker 904: match_cfg_line_group(const char *grps, int line, const char *user)
905: {
906: int result = 0;
907: struct passwd *pw;
908:
909: if (user == NULL)
910: goto out;
911:
912: if ((pw = getpwnam(user)) == NULL) {
913: debug("Can't match group at line %d because user %.100s does "
914: "not exist", line, user);
915: } else if (ga_init(pw->pw_name, pw->pw_gid) == 0) {
916: debug("Can't Match group because user %.100s not in any group "
917: "at line %d", user, line);
1.186 djm 918: } else if (ga_match_pattern_list(grps) != 1) {
919: debug("user %.100s does not match group list %.100s at line %d",
920: user, grps, line);
1.165 dtucker 921: } else {
1.186 djm 922: debug("user %.100s matched group list %.100s at line %d", user,
923: grps, line);
1.165 dtucker 924: result = 1;
925: }
926: out:
927: ga_free();
928: return result;
929: }
930:
1.319 dtucker 931: static void
932: match_test_missing_fatal(const char *criteria, const char *attrib)
933: {
934: fatal("'Match %s' in configuration but '%s' not in connection "
935: "test specification.", criteria, attrib);
936: }
937:
1.226 dtucker 938: /*
1.230 dtucker 939: * All of the attributes on a single Match line are ANDed together, so we need
1.242 dtucker 940: * to check every attribute and set the result to zero if any attribute does
1.230 dtucker 941: * not match.
1.226 dtucker 942: */
1.165 dtucker 943: static int
1.226 dtucker 944: match_cfg_line(char **condition, int line, struct connection_info *ci)
1.153 dtucker 945: {
1.243 dtucker 946: int result = 1, attributes = 0, port;
1.153 dtucker 947: char *arg, *attrib, *cp = *condition;
948:
1.226 dtucker 949: if (ci == NULL)
1.153 dtucker 950: debug3("checking syntax for 'Match %s'", cp);
951: else
1.226 dtucker 952: debug3("checking match for '%s' user %s host %s addr %s "
953: "laddr %s lport %d", cp, ci->user ? ci->user : "(null)",
954: ci->host ? ci->host : "(null)",
955: ci->address ? ci->address : "(null)",
956: ci->laddress ? ci->laddress : "(null)", ci->lport);
1.153 dtucker 957:
958: while ((attrib = strdelim(&cp)) && *attrib != '\0') {
1.243 dtucker 959: attributes++;
960: if (strcasecmp(attrib, "all") == 0) {
961: if (attributes != 1 ||
962: ((arg = strdelim(&cp)) != NULL && *arg != '\0')) {
963: error("'all' cannot be combined with other "
964: "Match attributes");
965: return -1;
966: }
967: *condition = cp;
968: return 1;
969: }
1.153 dtucker 970: if ((arg = strdelim(&cp)) == NULL || *arg == '\0') {
971: error("Missing Match criteria for %s", attrib);
972: return -1;
973: }
974: if (strcasecmp(attrib, "user") == 0) {
1.319 dtucker 975: if (ci == NULL) {
1.153 dtucker 976: result = 0;
977: continue;
978: }
1.319 dtucker 979: if (ci->user == NULL)
980: match_test_missing_fatal("User", "user");
1.269 djm 981: if (match_pattern_list(ci->user, arg, 0) != 1)
1.153 dtucker 982: result = 0;
983: else
984: debug("user %.100s matched 'User %.100s' at "
1.226 dtucker 985: "line %d", ci->user, arg, line);
1.165 dtucker 986: } else if (strcasecmp(attrib, "group") == 0) {
1.319 dtucker 987: if (ci == NULL) {
1.226 dtucker 988: result = 0;
989: continue;
990: }
1.319 dtucker 991: if (ci->user == NULL)
992: match_test_missing_fatal("Group", "user");
1.226 dtucker 993: switch (match_cfg_line_group(arg, line, ci->user)) {
1.165 dtucker 994: case -1:
995: return -1;
996: case 0:
997: result = 0;
998: }
1.153 dtucker 999: } else if (strcasecmp(attrib, "host") == 0) {
1.319 dtucker 1000: if (ci == NULL) {
1.153 dtucker 1001: result = 0;
1002: continue;
1003: }
1.319 dtucker 1004: if (ci->host == NULL)
1005: match_test_missing_fatal("Host", "host");
1.269 djm 1006: if (match_hostname(ci->host, arg) != 1)
1.153 dtucker 1007: result = 0;
1008: else
1009: debug("connection from %.100s matched 'Host "
1.226 dtucker 1010: "%.100s' at line %d", ci->host, arg, line);
1.153 dtucker 1011: } else if (strcasecmp(attrib, "address") == 0) {
1.319 dtucker 1012: if (ci == NULL) {
1.226 dtucker 1013: result = 0;
1014: continue;
1015: }
1.319 dtucker 1016: if (ci->address == NULL)
1017: match_test_missing_fatal("Address", "addr");
1.226 dtucker 1018: switch (addr_match_list(ci->address, arg)) {
1.181 djm 1019: case 1:
1020: debug("connection from %.100s matched 'Address "
1.226 dtucker 1021: "%.100s' at line %d", ci->address, arg, line);
1.181 djm 1022: break;
1023: case 0:
1.183 djm 1024: case -1:
1.153 dtucker 1025: result = 0;
1.181 djm 1026: break;
1.183 djm 1027: case -2:
1.181 djm 1028: return -1;
1.153 dtucker 1029: }
1.226 dtucker 1030: } else if (strcasecmp(attrib, "localaddress") == 0){
1.319 dtucker 1031: if (ci == NULL) {
1.226 dtucker 1032: result = 0;
1033: continue;
1034: }
1.319 dtucker 1035: if (ci->laddress == NULL)
1036: match_test_missing_fatal("LocalAddress",
1037: "laddr");
1.226 dtucker 1038: switch (addr_match_list(ci->laddress, arg)) {
1039: case 1:
1040: debug("connection from %.100s matched "
1041: "'LocalAddress %.100s' at line %d",
1042: ci->laddress, arg, line);
1043: break;
1044: case 0:
1045: case -1:
1046: result = 0;
1047: break;
1048: case -2:
1049: return -1;
1050: }
1051: } else if (strcasecmp(attrib, "localport") == 0) {
1052: if ((port = a2port(arg)) == -1) {
1053: error("Invalid LocalPort '%s' on Match line",
1054: arg);
1055: return -1;
1056: }
1.319 dtucker 1057: if (ci == NULL) {
1.226 dtucker 1058: result = 0;
1059: continue;
1060: }
1.319 dtucker 1061: if (ci->lport == 0)
1062: match_test_missing_fatal("LocalPort", "lport");
1.226 dtucker 1063: /* TODO support port lists */
1064: if (port == ci->lport)
1065: debug("connection from %.100s matched "
1066: "'LocalPort %d' at line %d",
1067: ci->laddress, port, line);
1068: else
1069: result = 0;
1.317 djm 1070: } else if (strcasecmp(attrib, "rdomain") == 0) {
1071: if (ci == NULL || ci->rdomain == NULL) {
1072: result = 0;
1073: continue;
1074: }
1075: if (match_pattern_list(ci->rdomain, arg, 0) != 1)
1076: result = 0;
1077: else
1078: debug("user %.100s matched 'RDomain %.100s' at "
1079: "line %d", ci->rdomain, arg, line);
1.153 dtucker 1080: } else {
1081: error("Unsupported Match attribute %s", attrib);
1082: return -1;
1083: }
1.243 dtucker 1084: }
1085: if (attributes == 0) {
1086: error("One or more attributes required for Match");
1087: return -1;
1.153 dtucker 1088: }
1.226 dtucker 1089: if (ci != NULL)
1.153 dtucker 1090: debug3("match %sfound", result ? "" : "not ");
1091: *condition = cp;
1092: return result;
1093: }
1094:
1.158 dtucker 1095: #define WHITESPACE " \t\r\n"
1096:
1.220 djm 1097: /* Multistate option parsing */
1098: struct multistate {
1099: char *key;
1100: int value;
1101: };
1.320 djm 1102: static const struct multistate multistate_flag[] = {
1103: { "yes", 1 },
1104: { "no", 0 },
1105: { NULL, -1 }
1106: };
1.220 djm 1107: static const struct multistate multistate_addressfamily[] = {
1108: { "inet", AF_INET },
1109: { "inet6", AF_INET6 },
1110: { "any", AF_UNSPEC },
1111: { NULL, -1 }
1112: };
1113: static const struct multistate multistate_permitrootlogin[] = {
1114: { "without-password", PERMIT_NO_PASSWD },
1.280 deraadt 1115: { "prohibit-password", PERMIT_NO_PASSWD },
1.220 djm 1116: { "forced-commands-only", PERMIT_FORCED_ONLY },
1117: { "yes", PERMIT_YES },
1118: { "no", PERMIT_NO },
1119: { NULL, -1 }
1120: };
1121: static const struct multistate multistate_compression[] = {
1.337 sf 1122: { "yes", COMP_DELAYED },
1123: { "delayed", COMP_DELAYED },
1.220 djm 1124: { "no", COMP_NONE },
1125: { NULL, -1 }
1126: };
1127: static const struct multistate multistate_gatewayports[] = {
1128: { "clientspecified", 2 },
1129: { "yes", 1 },
1130: { "no", 0 },
1.222 djm 1131: { NULL, -1 }
1132: };
1.233 djm 1133: static const struct multistate multistate_tcpfwd[] = {
1134: { "yes", FORWARD_ALLOW },
1135: { "all", FORWARD_ALLOW },
1136: { "no", FORWARD_DENY },
1137: { "remote", FORWARD_REMOTE },
1138: { "local", FORWARD_LOCAL },
1139: { NULL, -1 }
1140: };
1.220 djm 1141:
1.94 markus 1142: int
1143: process_server_config_line(ServerOptions *options, char *line,
1.226 dtucker 1144: const char *filename, int linenum, int *activep,
1145: struct connection_info *connectinfo)
1.1 deraadt 1146: {
1.329 djm 1147: char *cp, ***chararrayptr, **charptr, *arg, *arg2, *p;
1.237 dtucker 1148: int cmdline = 0, *intptr, value, value2, n, port;
1.174 dtucker 1149: SyslogFacility *log_facility_ptr;
1150: LogLevel *log_level_ptr;
1.25 markus 1151: ServerOpCodes opcode;
1.329 djm 1152: u_int i, *uintptr, uvalue, flags = 0;
1.151 djm 1153: size_t len;
1.237 dtucker 1154: long long val64;
1.220 djm 1155: const struct multistate *multistate_ptr;
1.322 dtucker 1156: const char *errstr;
1.303 djm 1157:
1158: /* Strip trailing whitespace. Allow \f (form feed) at EOL only */
1159: if ((len = strlen(line)) == 0)
1160: return 0;
1161: for (len--; len > 0; len--) {
1162: if (strchr(WHITESPACE "\f", line[len]) == NULL)
1163: break;
1164: line[len] = '\0';
1165: }
1.25 markus 1166:
1.94 markus 1167: cp = line;
1.148 dtucker 1168: if ((arg = strdelim(&cp)) == NULL)
1.147 djm 1169: return 0;
1.94 markus 1170: /* Ignore leading whitespace */
1171: if (*arg == '\0')
1172: arg = strdelim(&cp);
1173: if (!arg || !*arg || *arg == '#')
1174: return 0;
1175: intptr = NULL;
1176: charptr = NULL;
1.153 dtucker 1177: opcode = parse_token(arg, filename, linenum, &flags);
1178:
1179: if (activep == NULL) { /* We are processing a command line directive */
1180: cmdline = 1;
1181: activep = &cmdline;
1182: }
1183: if (*activep && opcode != sMatch)
1184: debug3("%s:%d setting %s %s", filename, linenum, arg, cp);
1185: if (*activep == 0 && !(flags & SSHCFG_MATCH)) {
1.226 dtucker 1186: if (connectinfo == NULL) {
1.153 dtucker 1187: fatal("%s line %d: Directive '%s' is not allowed "
1188: "within a Match block", filename, linenum, arg);
1189: } else { /* this is a directive we have already processed */
1190: while (arg)
1191: arg = strdelim(&cp);
1192: return 0;
1193: }
1194: }
1195:
1.94 markus 1196: switch (opcode) {
1197: case sBadOption:
1198: return -1;
1199: case sPort:
1200: /* ignore ports from configfile if cmdline specifies ports */
1201: if (options->ports_from_cmdline)
1202: return 0;
1203: if (options->num_ports >= MAX_PORTS)
1204: fatal("%s line %d: too many ports.",
1205: filename, linenum);
1.48 provos 1206: arg = strdelim(&cp);
1.94 markus 1207: if (!arg || *arg == '\0')
1208: fatal("%s line %d: missing port number.",
1209: filename, linenum);
1210: options->ports[options->num_ports++] = a2port(arg);
1.194 djm 1211: if (options->ports[options->num_ports-1] <= 0)
1.94 markus 1212: fatal("%s line %d: Badly formatted port number.",
1213: filename, linenum);
1214: break;
1.29 markus 1215:
1.94 markus 1216: case sLoginGraceTime:
1217: intptr = &options->login_grace_time;
1.180 djm 1218: parse_time:
1.94 markus 1219: arg = strdelim(&cp);
1220: if (!arg || *arg == '\0')
1221: fatal("%s line %d: missing time value.",
1222: filename, linenum);
1223: if ((value = convtime(arg)) == -1)
1224: fatal("%s line %d: invalid time value.",
1225: filename, linenum);
1.268 djm 1226: if (*activep && *intptr == -1)
1.94 markus 1227: *intptr = value;
1228: break;
1229:
1230: case sListenAddress:
1231: arg = strdelim(&cp);
1.139 djm 1232: if (arg == NULL || *arg == '\0')
1233: fatal("%s line %d: missing address",
1.94 markus 1234: filename, linenum);
1.144 dtucker 1235: /* check for bare IPv6 address: no "[]" and 2 or more ":" */
1236: if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
1237: && strchr(p+1, ':') != NULL) {
1.315 djm 1238: port = 0;
1239: p = arg;
1240: } else {
1241: p = hpdelim(&arg);
1242: if (p == NULL)
1243: fatal("%s line %d: bad address:port usage",
1244: filename, linenum);
1245: p = cleanhostname(p);
1246: if (arg == NULL)
1247: port = 0;
1248: else if ((port = a2port(arg)) <= 0)
1249: fatal("%s line %d: bad port number",
1250: filename, linenum);
1251: }
1252: /* Optional routing table */
1253: arg2 = NULL;
1254: if ((arg = strdelim(&cp)) != NULL) {
1255: if (strcmp(arg, "rdomain") != 0 ||
1256: (arg2 = strdelim(&cp)) == NULL)
1257: fatal("%s line %d: bad ListenAddress syntax",
1258: filename, linenum);
1259: if (!valid_rdomain(arg2))
1260: fatal("%s line %d: bad routing domain",
1261: filename, linenum);
1.144 dtucker 1262: }
1.139 djm 1263:
1.315 djm 1264: queue_listen_addr(options, p, arg2, port);
1.25 markus 1265:
1.138 djm 1266: break;
1267:
1268: case sAddressFamily:
1.220 djm 1269: intptr = &options->address_family;
1270: multistate_ptr = multistate_addressfamily;
1271: parse_multistate:
1.138 djm 1272: arg = strdelim(&cp);
1.141 markus 1273: if (!arg || *arg == '\0')
1.220 djm 1274: fatal("%s line %d: missing argument.",
1.141 markus 1275: filename, linenum);
1.220 djm 1276: value = -1;
1277: for (i = 0; multistate_ptr[i].key != NULL; i++) {
1278: if (strcasecmp(arg, multistate_ptr[i].key) == 0) {
1279: value = multistate_ptr[i].value;
1280: break;
1281: }
1282: }
1283: if (value == -1)
1284: fatal("%s line %d: unsupported option \"%s\".",
1.138 djm 1285: filename, linenum, arg);
1.220 djm 1286: if (*activep && *intptr == -1)
1.138 djm 1287: *intptr = value;
1.94 markus 1288: break;
1289:
1290: case sHostKeyFile:
1291: arg = strdelim(&cp);
1292: if (!arg || *arg == '\0')
1293: fatal("%s line %d: missing file name.",
1294: filename, linenum);
1.314 djm 1295: if (*activep)
1296: servconf_add_hostkey(filename, linenum, options, arg);
1.94 markus 1297: break;
1.76 stevesk 1298:
1.240 markus 1299: case sHostKeyAgent:
1300: charptr = &options->host_key_agent;
1301: arg = strdelim(&cp);
1302: if (!arg || *arg == '\0')
1303: fatal("%s line %d: missing socket name.",
1304: filename, linenum);
1305: if (*activep && *charptr == NULL)
1306: *charptr = !strcmp(arg, SSH_AUTHSOCKET_ENV_NAME) ?
1307: xstrdup(arg) : derelativise_path(arg);
1308: break;
1309:
1.203 djm 1310: case sHostCertificate:
1.314 djm 1311: arg = strdelim(&cp);
1312: if (!arg || *arg == '\0')
1313: fatal("%s line %d: missing file name.",
1314: filename, linenum);
1315: if (*activep)
1316: servconf_add_hostcert(filename, linenum, options, arg);
1317: break;
1.203 djm 1318:
1.94 markus 1319: case sPidFile:
1320: charptr = &options->pid_file;
1.314 djm 1321: parse_filename:
1322: arg = strdelim(&cp);
1323: if (!arg || *arg == '\0')
1324: fatal("%s line %d: missing file name.",
1325: filename, linenum);
1326: if (*activep && *charptr == NULL) {
1327: *charptr = derelativise_path(arg);
1328: /* increase optional counter */
1329: if (intptr != NULL)
1330: *intptr = *intptr + 1;
1331: }
1332: break;
1.25 markus 1333:
1.94 markus 1334: case sPermitRootLogin:
1335: intptr = &options->permit_root_login;
1.220 djm 1336: multistate_ptr = multistate_permitrootlogin;
1337: goto parse_multistate;
1.36 markus 1338:
1.94 markus 1339: case sIgnoreRhosts:
1340: intptr = &options->ignore_rhosts;
1.180 djm 1341: parse_flag:
1.320 djm 1342: multistate_ptr = multistate_flag;
1343: goto parse_multistate;
1.94 markus 1344:
1345: case sIgnoreUserKnownHosts:
1346: intptr = &options->ignore_user_known_hosts;
1347: goto parse_flag;
1348:
1349: case sHostbasedAuthentication:
1350: intptr = &options->hostbased_authentication;
1351: goto parse_flag;
1352:
1353: case sHostbasedUsesNameFromPacketOnly:
1354: intptr = &options->hostbased_uses_name_from_packet_only;
1355: goto parse_flag;
1356:
1.258 djm 1357: case sHostbasedAcceptedKeyTypes:
1358: charptr = &options->hostbased_key_types;
1359: parse_keytypes:
1360: arg = strdelim(&cp);
1361: if (!arg || *arg == '\0')
1362: fatal("%s line %d: Missing argument.",
1363: filename, linenum);
1.304 djm 1364: if (*arg != '-' &&
1365: !sshkey_names_valid2(*arg == '+' ? arg + 1 : arg, 1))
1.258 djm 1366: fatal("%s line %d: Bad key types '%s'.",
1367: filename, linenum, arg ? arg : "<NONE>");
1368: if (*activep && *charptr == NULL)
1369: *charptr = xstrdup(arg);
1370: break;
1371:
1.276 markus 1372: case sHostKeyAlgorithms:
1373: charptr = &options->hostkeyalgorithms;
1374: goto parse_keytypes;
1375:
1.341 djm 1376: case sCASignatureAlgorithms:
1377: charptr = &options->ca_sign_algorithms;
1378: goto parse_keytypes;
1379:
1.94 markus 1380: case sPubkeyAuthentication:
1381: intptr = &options->pubkey_authentication;
1382: goto parse_flag;
1.119 jakob 1383:
1.258 djm 1384: case sPubkeyAcceptedKeyTypes:
1385: charptr = &options->pubkey_key_types;
1386: goto parse_keytypes;
1387:
1.94 markus 1388: case sKerberosAuthentication:
1389: intptr = &options->kerberos_authentication;
1390: goto parse_flag;
1391:
1392: case sKerberosOrLocalPasswd:
1393: intptr = &options->kerberos_or_local_passwd;
1394: goto parse_flag;
1395:
1396: case sKerberosTicketCleanup:
1397: intptr = &options->kerberos_ticket_cleanup;
1.130 jakob 1398: goto parse_flag;
1399:
1400: case sKerberosGetAFSToken:
1401: intptr = &options->kerberos_get_afs_token;
1.125 markus 1402: goto parse_flag;
1403:
1404: case sGssAuthentication:
1405: intptr = &options->gss_authentication;
1406: goto parse_flag;
1407:
1408: case sGssCleanupCreds:
1409: intptr = &options->gss_cleanup_creds;
1.271 djm 1410: goto parse_flag;
1411:
1412: case sGssStrictAcceptor:
1413: intptr = &options->gss_strict_acceptor;
1.94 markus 1414: goto parse_flag;
1415:
1416: case sPasswordAuthentication:
1417: intptr = &options->password_authentication;
1418: goto parse_flag;
1419:
1420: case sKbdInteractiveAuthentication:
1421: intptr = &options->kbd_interactive_authentication;
1422: goto parse_flag;
1423:
1424: case sChallengeResponseAuthentication:
1425: intptr = &options->challenge_response_authentication;
1426: goto parse_flag;
1427:
1428: case sPrintMotd:
1429: intptr = &options->print_motd;
1430: goto parse_flag;
1431:
1432: case sPrintLastLog:
1433: intptr = &options->print_lastlog;
1434: goto parse_flag;
1435:
1436: case sX11Forwarding:
1437: intptr = &options->x11_forwarding;
1438: goto parse_flag;
1439:
1440: case sX11DisplayOffset:
1441: intptr = &options->x11_display_offset;
1.293 naddy 1442: parse_int:
1443: arg = strdelim(&cp);
1.322 dtucker 1444: if ((errstr = atoi_err(arg, &value)) != NULL)
1445: fatal("%s line %d: integer value %s.",
1446: filename, linenum, errstr);
1.293 naddy 1447: if (*activep && *intptr == -1)
1448: *intptr = value;
1449: break;
1.99 stevesk 1450:
1451: case sX11UseLocalhost:
1452: intptr = &options->x11_use_localhost;
1453: goto parse_flag;
1.94 markus 1454:
1455: case sXAuthLocation:
1456: charptr = &options->xauth_location;
1457: goto parse_filename;
1458:
1.244 djm 1459: case sPermitTTY:
1460: intptr = &options->permit_tty;
1461: goto parse_flag;
1462:
1.250 djm 1463: case sPermitUserRC:
1464: intptr = &options->permit_user_rc;
1465: goto parse_flag;
1466:
1.94 markus 1467: case sStrictModes:
1468: intptr = &options->strict_modes;
1469: goto parse_flag;
1470:
1.129 markus 1471: case sTCPKeepAlive:
1472: intptr = &options->tcp_keep_alive;
1.94 markus 1473: goto parse_flag;
1474:
1475: case sEmptyPasswd:
1476: intptr = &options->permit_empty_passwd;
1.113 markus 1477: goto parse_flag;
1478:
1479: case sPermitUserEnvironment:
1480: intptr = &options->permit_user_env;
1.334 djm 1481: charptr = &options->permit_user_env_whitelist;
1482: arg = strdelim(&cp);
1483: if (!arg || *arg == '\0')
1484: fatal("%s line %d: missing argument.",
1485: filename, linenum);
1486: value = 0;
1487: p = NULL;
1488: if (strcmp(arg, "yes") == 0)
1489: value = 1;
1490: else if (strcmp(arg, "no") == 0)
1491: value = 0;
1492: else {
1493: /* Pattern-list specified */
1494: value = 1;
1495: p = xstrdup(arg);
1496: }
1497: if (*activep && *intptr == -1) {
1498: *intptr = value;
1499: *charptr = p;
1500: p = NULL;
1501: }
1502: free(p);
1503: break;
1.94 markus 1504:
1.111 markus 1505: case sCompression:
1506: intptr = &options->compression;
1.220 djm 1507: multistate_ptr = multistate_compression;
1508: goto parse_multistate;
1.94 markus 1509:
1.235 dtucker 1510: case sRekeyLimit:
1511: arg = strdelim(&cp);
1512: if (!arg || *arg == '\0')
1513: fatal("%.200s line %d: Missing argument.", filename,
1514: linenum);
1515: if (strcmp(arg, "default") == 0) {
1516: val64 = 0;
1517: } else {
1.236 dtucker 1518: if (scan_scaled(arg, &val64) == -1)
1519: fatal("%.200s line %d: Bad number '%s': %s",
1520: filename, linenum, arg, strerror(errno));
1.235 dtucker 1521: if (val64 != 0 && val64 < 16)
1522: fatal("%.200s line %d: RekeyLimit too small",
1523: filename, linenum);
1524: }
1525: if (*activep && options->rekey_limit == -1)
1.284 dtucker 1526: options->rekey_limit = val64;
1.235 dtucker 1527: if (cp != NULL) { /* optional rekey interval present */
1528: if (strcmp(cp, "none") == 0) {
1529: (void)strdelim(&cp); /* discard */
1530: break;
1531: }
1532: intptr = &options->rekey_interval;
1533: goto parse_time;
1534: }
1535: break;
1536:
1.94 markus 1537: case sGatewayPorts:
1.251 millert 1538: intptr = &options->fwd_opts.gateway_ports;
1.220 djm 1539: multistate_ptr = multistate_gatewayports;
1540: goto parse_multistate;
1.25 markus 1541:
1.122 markus 1542: case sUseDNS:
1543: intptr = &options->use_dns;
1.94 markus 1544: goto parse_flag;
1.53 markus 1545:
1.94 markus 1546: case sLogFacility:
1.174 dtucker 1547: log_facility_ptr = &options->log_facility;
1.94 markus 1548: arg = strdelim(&cp);
1549: value = log_facility_number(arg);
1.101 markus 1550: if (value == SYSLOG_FACILITY_NOT_SET)
1.94 markus 1551: fatal("%.200s line %d: unsupported log facility '%s'",
1552: filename, linenum, arg ? arg : "<NONE>");
1.174 dtucker 1553: if (*log_facility_ptr == -1)
1554: *log_facility_ptr = (SyslogFacility) value;
1.94 markus 1555: break;
1.25 markus 1556:
1.94 markus 1557: case sLogLevel:
1.174 dtucker 1558: log_level_ptr = &options->log_level;
1.94 markus 1559: arg = strdelim(&cp);
1560: value = log_level_number(arg);
1.101 markus 1561: if (value == SYSLOG_LEVEL_NOT_SET)
1.94 markus 1562: fatal("%.200s line %d: unsupported log level '%s'",
1563: filename, linenum, arg ? arg : "<NONE>");
1.308 djm 1564: if (*activep && *log_level_ptr == -1)
1.174 dtucker 1565: *log_level_ptr = (LogLevel) value;
1.94 markus 1566: break;
1567:
1568: case sAllowTcpForwarding:
1569: intptr = &options->allow_tcp_forwarding;
1.233 djm 1570: multistate_ptr = multistate_tcpfwd;
1571: goto parse_multistate;
1.102 provos 1572:
1.251 millert 1573: case sAllowStreamLocalForwarding:
1574: intptr = &options->allow_streamlocal_forwarding;
1575: multistate_ptr = multistate_tcpfwd;
1576: goto parse_multistate;
1577:
1.178 pyr 1578: case sAllowAgentForwarding:
1579: intptr = &options->allow_agent_forwarding;
1580: goto parse_flag;
1581:
1.301 djm 1582: case sDisableForwarding:
1583: intptr = &options->disable_forwarding;
1584: goto parse_flag;
1585:
1.94 markus 1586: case sAllowUsers:
1587: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1588: if (match_user(NULL, NULL, NULL, arg) == -1)
1589: fatal("%s line %d: invalid AllowUsers pattern: "
1590: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1591: if (!*activep)
1592: continue;
1.314 djm 1593: array_append(filename, linenum, "AllowUsers",
1594: &options->allow_users, &options->num_allow_users,
1595: arg);
1.94 markus 1596: }
1597: break;
1.25 markus 1598:
1.94 markus 1599: case sDenyUsers:
1600: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.299 djm 1601: if (match_user(NULL, NULL, NULL, arg) == -1)
1602: fatal("%s line %d: invalid DenyUsers pattern: "
1603: "\"%.100s\"", filename, linenum, arg);
1.227 markus 1604: if (!*activep)
1605: continue;
1.314 djm 1606: array_append(filename, linenum, "DenyUsers",
1607: &options->deny_users, &options->num_deny_users,
1608: arg);
1.94 markus 1609: }
1610: break;
1.25 markus 1611:
1.94 markus 1612: case sAllowGroups:
1613: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1614: if (!*activep)
1615: continue;
1.314 djm 1616: array_append(filename, linenum, "AllowGroups",
1617: &options->allow_groups, &options->num_allow_groups,
1618: arg);
1.94 markus 1619: }
1620: break;
1.33 markus 1621:
1.94 markus 1622: case sDenyGroups:
1623: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.227 markus 1624: if (!*activep)
1625: continue;
1.314 djm 1626: array_append(filename, linenum, "DenyGroups",
1627: &options->deny_groups, &options->num_deny_groups,
1628: arg);
1.94 markus 1629: }
1630: break;
1.66 markus 1631:
1.94 markus 1632: case sCiphers:
1633: arg = strdelim(&cp);
1634: if (!arg || *arg == '\0')
1635: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1636: if (*arg != '-' && !ciphers_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1637: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1638: filename, linenum, arg ? arg : "<NONE>");
1639: if (options->ciphers == NULL)
1640: options->ciphers = xstrdup(arg);
1641: break;
1.33 markus 1642:
1.94 markus 1643: case sMacs:
1644: arg = strdelim(&cp);
1645: if (!arg || *arg == '\0')
1646: fatal("%s line %d: Missing argument.", filename, linenum);
1.304 djm 1647: if (*arg != '-' && !mac_valid(*arg == '+' ? arg + 1 : arg))
1.94 markus 1648: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
1649: filename, linenum, arg ? arg : "<NONE>");
1650: if (options->macs == NULL)
1651: options->macs = xstrdup(arg);
1.211 djm 1652: break;
1653:
1654: case sKexAlgorithms:
1655: arg = strdelim(&cp);
1656: if (!arg || *arg == '\0')
1657: fatal("%s line %d: Missing argument.",
1658: filename, linenum);
1.304 djm 1659: if (*arg != '-' &&
1660: !kex_names_valid(*arg == '+' ? arg + 1 : arg))
1.211 djm 1661: fatal("%s line %d: Bad SSH2 KexAlgorithms '%s'.",
1662: filename, linenum, arg ? arg : "<NONE>");
1663: if (options->kex_algorithms == NULL)
1664: options->kex_algorithms = xstrdup(arg);
1.94 markus 1665: break;
1.43 jakob 1666:
1.94 markus 1667: case sSubsystem:
1668: if (options->num_subsystems >= MAX_SUBSYSTEMS) {
1669: fatal("%s line %d: too many subsystems defined.",
1.95 deraadt 1670: filename, linenum);
1.94 markus 1671: }
1672: arg = strdelim(&cp);
1673: if (!arg || *arg == '\0')
1674: fatal("%s line %d: Missing subsystem name.",
1.95 deraadt 1675: filename, linenum);
1.153 dtucker 1676: if (!*activep) {
1677: arg = strdelim(&cp);
1678: break;
1679: }
1.94 markus 1680: for (i = 0; i < options->num_subsystems; i++)
1681: if (strcmp(arg, options->subsystem_name[i]) == 0)
1682: fatal("%s line %d: Subsystem '%s' already defined.",
1.95 deraadt 1683: filename, linenum, arg);
1.94 markus 1684: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1685: arg = strdelim(&cp);
1686: if (!arg || *arg == '\0')
1687: fatal("%s line %d: Missing subsystem command.",
1.95 deraadt 1688: filename, linenum);
1.94 markus 1689: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.151 djm 1690:
1691: /* Collect arguments (separate to executable) */
1692: p = xstrdup(arg);
1693: len = strlen(p) + 1;
1694: while ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1695: len += 1 + strlen(arg);
1.264 deraadt 1696: p = xreallocarray(p, 1, len);
1.151 djm 1697: strlcat(p, " ", len);
1698: strlcat(p, arg, len);
1699: }
1700: options->subsystem_args[options->num_subsystems] = p;
1.94 markus 1701: options->num_subsystems++;
1702: break;
1.46 markus 1703:
1.94 markus 1704: case sMaxStartups:
1705: arg = strdelim(&cp);
1706: if (!arg || *arg == '\0')
1707: fatal("%s line %d: Missing MaxStartups spec.",
1.95 deraadt 1708: filename, linenum);
1.94 markus 1709: if ((n = sscanf(arg, "%d:%d:%d",
1710: &options->max_startups_begin,
1711: &options->max_startups_rate,
1712: &options->max_startups)) == 3) {
1713: if (options->max_startups_begin >
1714: options->max_startups ||
1715: options->max_startups_rate > 100 ||
1716: options->max_startups_rate < 1)
1.50 markus 1717: fatal("%s line %d: Illegal MaxStartups spec.",
1.87 stevesk 1718: filename, linenum);
1.94 markus 1719: } else if (n != 1)
1720: fatal("%s line %d: Illegal MaxStartups spec.",
1721: filename, linenum);
1722: else
1723: options->max_startups = options->max_startups_begin;
1724: break;
1.133 dtucker 1725:
1726: case sMaxAuthTries:
1727: intptr = &options->max_authtries;
1728: goto parse_int;
1.94 markus 1729:
1.180 djm 1730: case sMaxSessions:
1731: intptr = &options->max_sessions;
1732: goto parse_int;
1733:
1.94 markus 1734: case sBanner:
1735: charptr = &options->banner;
1736: goto parse_filename;
1.176 djm 1737:
1.94 markus 1738: /*
1739: * These options can contain %X options expanded at
1740: * connect time, so that you can specify paths like:
1741: *
1742: * AuthorizedKeysFile /etc/ssh_keys/%u
1743: */
1744: case sAuthorizedKeysFile:
1.219 djm 1745: if (*activep && options->num_authkeys_files == 0) {
1746: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.314 djm 1747: arg = tilde_expand_filename(arg, getuid());
1748: array_append(filename, linenum,
1749: "AuthorizedKeysFile",
1750: &options->authorized_keys_files,
1751: &options->num_authkeys_files, arg);
1752: free(arg);
1.219 djm 1753: }
1754: }
1755: return 0;
1756:
1.208 djm 1757: case sAuthorizedPrincipalsFile:
1758: charptr = &options->authorized_principals_file;
1.205 djm 1759: arg = strdelim(&cp);
1760: if (!arg || *arg == '\0')
1761: fatal("%s line %d: missing file name.",
1762: filename, linenum);
1763: if (*activep && *charptr == NULL) {
1.206 markus 1764: *charptr = tilde_expand_filename(arg, getuid());
1.205 djm 1765: /* increase optional counter */
1766: if (intptr != NULL)
1767: *intptr = *intptr + 1;
1768: }
1769: break;
1.94 markus 1770:
1771: case sClientAliveInterval:
1772: intptr = &options->client_alive_interval;
1773: goto parse_time;
1774:
1775: case sClientAliveCountMax:
1776: intptr = &options->client_alive_count_max;
1777: goto parse_int;
1.131 djm 1778:
1779: case sAcceptEnv:
1780: while ((arg = strdelim(&cp)) && *arg != '\0') {
1781: if (strchr(arg, '=') != NULL)
1782: fatal("%s line %d: Invalid environment name.",
1783: filename, linenum);
1.153 dtucker 1784: if (!*activep)
1.227 markus 1785: continue;
1.314 djm 1786: array_append(filename, linenum, "AcceptEnv",
1787: &options->accept_env, &options->num_accept_env,
1788: arg);
1.131 djm 1789: }
1790: break;
1.145 reyk 1791:
1.332 djm 1792: case sSetEnv:
1793: uvalue = options->num_setenv;
1794: while ((arg = strdelimw(&cp)) && *arg != '\0') {
1795: if (strchr(arg, '=') == NULL)
1796: fatal("%s line %d: Invalid environment.",
1797: filename, linenum);
1798: if (!*activep || uvalue != 0)
1799: continue;
1800: array_append(filename, linenum, "SetEnv",
1801: &options->setenv, &options->num_setenv, arg);
1802: }
1803: break;
1804:
1.145 reyk 1805: case sPermitTunnel:
1806: intptr = &options->permit_tun;
1.146 reyk 1807: arg = strdelim(&cp);
1808: if (!arg || *arg == '\0')
1809: fatal("%s line %d: Missing yes/point-to-point/"
1810: "ethernet/no argument.", filename, linenum);
1.182 dtucker 1811: value = -1;
1812: for (i = 0; tunmode_desc[i].val != -1; i++)
1813: if (strcmp(tunmode_desc[i].text, arg) == 0) {
1814: value = tunmode_desc[i].val;
1815: break;
1816: }
1817: if (value == -1)
1.146 reyk 1818: fatal("%s line %d: Bad yes/point-to-point/ethernet/"
1819: "no argument: %s", filename, linenum, arg);
1.268 djm 1820: if (*activep && *intptr == -1)
1.146 reyk 1821: *intptr = value;
1822: break;
1.94 markus 1823:
1.153 dtucker 1824: case sMatch:
1825: if (cmdline)
1826: fatal("Match directive not supported as a command-line "
1827: "option");
1.226 dtucker 1828: value = match_cfg_line(&cp, linenum, connectinfo);
1.153 dtucker 1829: if (value < 0)
1830: fatal("%s line %d: Bad Match condition", filename,
1831: linenum);
1832: *activep = value;
1.156 dtucker 1833: break;
1834:
1.330 djm 1835: case sPermitListen:
1.156 dtucker 1836: case sPermitOpen:
1.330 djm 1837: if (opcode == sPermitListen) {
1838: uintptr = &options->num_permitted_listens;
1839: chararrayptr = &options->permitted_listens;
1.329 djm 1840: } else {
1841: uintptr = &options->num_permitted_opens;
1842: chararrayptr = &options->permitted_opens;
1843: }
1.156 dtucker 1844: arg = strdelim(&cp);
1845: if (!arg || *arg == '\0')
1.329 djm 1846: fatal("%s line %d: missing %s specification",
1847: filename, linenum, lookup_opcode_name(opcode));
1848: uvalue = *uintptr; /* modified later */
1.310 djm 1849: if (strcmp(arg, "any") == 0 || strcmp(arg, "none") == 0) {
1.329 djm 1850: if (*activep && uvalue == 0) {
1851: *uintptr = 1;
1852: *chararrayptr = xcalloc(1,
1853: sizeof(**chararrayptr));
1854: (*chararrayptr)[0] = xstrdup(arg);
1.311 dtucker 1855: }
1.156 dtucker 1856: break;
1857: }
1.159 dtucker 1858: for (; arg != NULL && *arg != '\0'; arg = strdelim(&cp)) {
1.333 djm 1859: if (opcode == sPermitListen &&
1860: strchr(arg, ':') == NULL) {
1861: /*
1862: * Allow bare port number for PermitListen
1863: * to indicate a wildcard listen host.
1864: */
1865: xasprintf(&arg2, "*:%s", arg);
1866: } else {
1867: arg2 = xstrdup(arg);
1868: p = hpdelim(&arg);
1869: if (p == NULL) {
1870: fatal("%s line %d: missing host in %s",
1871: filename, linenum,
1872: lookup_opcode_name(opcode));
1873: }
1874: p = cleanhostname(p);
1.329 djm 1875: }
1876: if (arg == NULL ||
1877: ((port = permitopen_port(arg)) < 0)) {
1878: fatal("%s line %d: bad port number in %s",
1879: filename, linenum,
1880: lookup_opcode_name(opcode));
1881: }
1882: if (*activep && uvalue == 0) {
1.314 djm 1883: array_append(filename, linenum,
1.329 djm 1884: lookup_opcode_name(opcode),
1885: chararrayptr, uintptr, arg2);
1.314 djm 1886: }
1887: free(arg2);
1.159 dtucker 1888: }
1.153 dtucker 1889: break;
1890:
1.158 dtucker 1891: case sForceCommand:
1.262 dtucker 1892: if (cp == NULL || *cp == '\0')
1.158 dtucker 1893: fatal("%.200s line %d: Missing argument.", filename,
1894: linenum);
1895: len = strspn(cp, WHITESPACE);
1896: if (*activep && options->adm_forced_command == NULL)
1897: options->adm_forced_command = xstrdup(cp + len);
1898: return 0;
1899:
1.176 djm 1900: case sChrootDirectory:
1901: charptr = &options->chroot_directory;
1.177 djm 1902:
1903: arg = strdelim(&cp);
1904: if (!arg || *arg == '\0')
1905: fatal("%s line %d: missing file name.",
1906: filename, linenum);
1907: if (*activep && *charptr == NULL)
1908: *charptr = xstrdup(arg);
1909: break;
1.176 djm 1910:
1.204 djm 1911: case sTrustedUserCAKeys:
1912: charptr = &options->trusted_user_ca_keys;
1913: goto parse_filename;
1914:
1915: case sRevokedKeys:
1916: charptr = &options->revoked_keys_file;
1917: goto parse_filename;
1918:
1.213 djm 1919: case sIPQoS:
1920: arg = strdelim(&cp);
1921: if ((value = parse_ipqos(arg)) == -1)
1922: fatal("%s line %d: Bad IPQoS value: %s",
1923: filename, linenum, arg);
1924: arg = strdelim(&cp);
1925: if (arg == NULL)
1926: value2 = value;
1927: else if ((value2 = parse_ipqos(arg)) == -1)
1928: fatal("%s line %d: Bad IPQoS value: %s",
1929: filename, linenum, arg);
1930: if (*activep) {
1931: options->ip_qos_interactive = value;
1932: options->ip_qos_bulk = value2;
1933: }
1934: break;
1935:
1.225 djm 1936: case sVersionAddendum:
1.262 dtucker 1937: if (cp == NULL || *cp == '\0')
1.225 djm 1938: fatal("%.200s line %d: Missing argument.", filename,
1939: linenum);
1940: len = strspn(cp, WHITESPACE);
1941: if (*activep && options->version_addendum == NULL) {
1942: if (strcasecmp(cp + len, "none") == 0)
1943: options->version_addendum = xstrdup("");
1944: else if (strchr(cp + len, '\r') != NULL)
1945: fatal("%.200s line %d: Invalid argument",
1946: filename, linenum);
1947: else
1948: options->version_addendum = xstrdup(cp + len);
1949: }
1950: return 0;
1951:
1.231 djm 1952: case sAuthorizedKeysCommand:
1.255 jsg 1953: if (cp == NULL)
1954: fatal("%.200s line %d: Missing argument.", filename,
1955: linenum);
1.231 djm 1956: len = strspn(cp, WHITESPACE);
1957: if (*activep && options->authorized_keys_command == NULL) {
1958: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1959: fatal("%.200s line %d: AuthorizedKeysCommand "
1960: "must be an absolute path",
1961: filename, linenum);
1962: options->authorized_keys_command = xstrdup(cp + len);
1963: }
1964: return 0;
1965:
1966: case sAuthorizedKeysCommandUser:
1967: charptr = &options->authorized_keys_command_user;
1968:
1969: arg = strdelim(&cp);
1.255 jsg 1970: if (!arg || *arg == '\0')
1971: fatal("%s line %d: missing AuthorizedKeysCommandUser "
1972: "argument.", filename, linenum);
1.231 djm 1973: if (*activep && *charptr == NULL)
1974: *charptr = xstrdup(arg);
1975: break;
1976:
1.270 djm 1977: case sAuthorizedPrincipalsCommand:
1978: if (cp == NULL)
1979: fatal("%.200s line %d: Missing argument.", filename,
1980: linenum);
1981: len = strspn(cp, WHITESPACE);
1982: if (*activep &&
1983: options->authorized_principals_command == NULL) {
1984: if (cp[len] != '/' && strcasecmp(cp + len, "none") != 0)
1985: fatal("%.200s line %d: "
1986: "AuthorizedPrincipalsCommand must be "
1987: "an absolute path", filename, linenum);
1988: options->authorized_principals_command =
1989: xstrdup(cp + len);
1990: }
1991: return 0;
1992:
1993: case sAuthorizedPrincipalsCommandUser:
1994: charptr = &options->authorized_principals_command_user;
1995:
1996: arg = strdelim(&cp);
1997: if (!arg || *arg == '\0')
1998: fatal("%s line %d: missing "
1999: "AuthorizedPrincipalsCommandUser argument.",
2000: filename, linenum);
2001: if (*activep && *charptr == NULL)
2002: *charptr = xstrdup(arg);
2003: break;
2004:
1.232 djm 2005: case sAuthenticationMethods:
1.268 djm 2006: if (options->num_auth_methods == 0) {
1.291 djm 2007: value = 0; /* seen "any" pseudo-method */
1.328 djm 2008: value2 = 0; /* successfully parsed any method */
1.232 djm 2009: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.291 djm 2010: if (strcmp(arg, "any") == 0) {
2011: if (options->num_auth_methods > 0) {
2012: fatal("%s line %d: \"any\" "
2013: "must appear alone in "
2014: "AuthenticationMethods",
2015: filename, linenum);
2016: }
2017: value = 1;
2018: } else if (value) {
2019: fatal("%s line %d: \"any\" must appear "
2020: "alone in AuthenticationMethods",
2021: filename, linenum);
2022: } else if (auth2_methods_valid(arg, 0) != 0) {
1.232 djm 2023: fatal("%s line %d: invalid "
2024: "authentication method list.",
2025: filename, linenum);
1.291 djm 2026: }
1.292 djm 2027: value2 = 1;
1.268 djm 2028: if (!*activep)
2029: continue;
1.314 djm 2030: array_append(filename, linenum,
2031: "AuthenticationMethods",
2032: &options->auth_methods,
2033: &options->num_auth_methods, arg);
1.232 djm 2034: }
1.292 djm 2035: if (value2 == 0) {
1.291 djm 2036: fatal("%s line %d: no AuthenticationMethods "
2037: "specified", filename, linenum);
2038: }
1.232 djm 2039: }
2040: return 0;
2041:
1.251 millert 2042: case sStreamLocalBindMask:
2043: arg = strdelim(&cp);
2044: if (!arg || *arg == '\0')
1.268 djm 2045: fatal("%s line %d: missing StreamLocalBindMask "
2046: "argument.", filename, linenum);
1.251 millert 2047: /* Parse mode in octal format */
2048: value = strtol(arg, &p, 8);
2049: if (arg == p || value < 0 || value > 0777)
2050: fatal("%s line %d: Bad mask.", filename, linenum);
1.268 djm 2051: if (*activep)
2052: options->fwd_opts.streamlocal_bind_mask = (mode_t)value;
1.251 millert 2053: break;
2054:
2055: case sStreamLocalBindUnlink:
2056: intptr = &options->fwd_opts.streamlocal_bind_unlink;
2057: goto parse_flag;
2058:
1.256 djm 2059: case sFingerprintHash:
2060: arg = strdelim(&cp);
2061: if (!arg || *arg == '\0')
2062: fatal("%.200s line %d: Missing argument.",
2063: filename, linenum);
2064: if ((value = ssh_digest_alg_by_name(arg)) == -1)
2065: fatal("%.200s line %d: Invalid hash algorithm \"%s\".",
2066: filename, linenum, arg);
2067: if (*activep)
2068: options->fingerprint_hash = value;
2069: break;
2070:
1.309 djm 2071: case sExposeAuthInfo:
2072: intptr = &options->expose_userauth_info;
2073: goto parse_flag;
2074:
1.316 djm 2075: case sRDomain:
2076: charptr = &options->routing_domain;
2077: arg = strdelim(&cp);
2078: if (!arg || *arg == '\0')
2079: fatal("%.200s line %d: Missing argument.",
2080: filename, linenum);
2081: if (strcasecmp(arg, "none") != 0 && strcmp(arg, "%D") != 0 &&
2082: !valid_rdomain(arg))
2083: fatal("%s line %d: bad routing domain",
2084: filename, linenum);
2085: if (*activep && *charptr == NULL)
2086: *charptr = xstrdup(arg);
1.321 dtucker 2087: break;
1.316 djm 2088:
1.94 markus 2089: case sDeprecated:
1.295 djm 2090: case sIgnore:
1.121 jakob 2091: case sUnsupported:
1.295 djm 2092: do_log2(opcode == sIgnore ?
2093: SYSLOG_LEVEL_DEBUG2 : SYSLOG_LEVEL_INFO,
2094: "%s line %d: %s option %s", filename, linenum,
2095: opcode == sUnsupported ? "Unsupported" : "Deprecated", arg);
1.94 markus 2096: while (arg)
2097: arg = strdelim(&cp);
2098: break;
2099:
2100: default:
2101: fatal("%s line %d: Missing handler for opcode %s (%d)",
2102: filename, linenum, arg, opcode);
2103: }
2104: if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
2105: fatal("%s line %d: garbage at end of line; \"%.200s\".",
2106: filename, linenum, arg);
2107: return 0;
2108: }
2109:
2110: /* Reads the server configuration file. */
1.25 markus 2111:
1.94 markus 2112: void
1.338 markus 2113: load_server_config(const char *filename, struct sshbuf *conf)
1.94 markus 2114: {
1.331 markus 2115: char *line = NULL, *cp;
2116: size_t linesize = 0;
1.94 markus 2117: FILE *f;
1.338 markus 2118: int r, lineno = 0;
1.81 stevesk 2119:
1.134 djm 2120: debug2("%s: filename %s", __func__, filename);
2121: if ((f = fopen(filename, "r")) == NULL) {
1.94 markus 2122: perror(filename);
2123: exit(1);
2124: }
1.338 markus 2125: sshbuf_reset(conf);
1.331 markus 2126: while (getline(&line, &linesize, f) != -1) {
1.229 dtucker 2127: lineno++;
1.134 djm 2128: /*
2129: * Trim out comments and strip whitespace
1.135 deraadt 2130: * NB - preserve newlines, they are needed to reproduce
1.134 djm 2131: * line numbers later for error messages
2132: */
2133: if ((cp = strchr(line, '#')) != NULL)
2134: memcpy(cp, "\n", 2);
2135: cp = line + strspn(line, " \t\r");
1.338 markus 2136: if ((r = sshbuf_put(conf, cp, strlen(cp))) != 0)
2137: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2138: }
1.331 markus 2139: free(line);
1.338 markus 2140: if ((r = sshbuf_put_u8(conf, 0)) != 0)
2141: fatal("%s: buffer error: %s", __func__, ssh_err(r));
1.134 djm 2142: fclose(f);
1.338 markus 2143: debug2("%s: done config len = %zu", __func__, sshbuf_len(conf));
1.134 djm 2144: }
2145:
2146: void
1.226 dtucker 2147: parse_server_match_config(ServerOptions *options,
2148: struct connection_info *connectinfo)
1.153 dtucker 2149: {
2150: ServerOptions mo;
2151:
2152: initialize_server_options(&mo);
1.338 markus 2153: parse_server_config(&mo, "reprocess config", cfg, connectinfo);
1.168 dtucker 2154: copy_set_server_options(options, &mo, 0);
1.153 dtucker 2155: }
2156:
1.226 dtucker 2157: int parse_server_match_testspec(struct connection_info *ci, char *spec)
2158: {
2159: char *p;
2160:
2161: while ((p = strsep(&spec, ",")) && *p != '\0') {
2162: if (strncmp(p, "addr=", 5) == 0) {
2163: ci->address = xstrdup(p + 5);
2164: } else if (strncmp(p, "host=", 5) == 0) {
2165: ci->host = xstrdup(p + 5);
2166: } else if (strncmp(p, "user=", 5) == 0) {
2167: ci->user = xstrdup(p + 5);
2168: } else if (strncmp(p, "laddr=", 6) == 0) {
2169: ci->laddress = xstrdup(p + 6);
1.317 djm 2170: } else if (strncmp(p, "rdomain=", 8) == 0) {
2171: ci->rdomain = xstrdup(p + 8);
1.226 dtucker 2172: } else if (strncmp(p, "lport=", 6) == 0) {
2173: ci->lport = a2port(p + 6);
2174: if (ci->lport == -1) {
2175: fprintf(stderr, "Invalid port '%s' in test mode"
2176: " specification %s\n", p+6, p);
2177: return -1;
2178: }
2179: } else {
2180: fprintf(stderr, "Invalid test mode specification %s\n",
2181: p);
2182: return -1;
2183: }
2184: }
2185: return 0;
2186: }
2187:
1.168 dtucker 2188: /*
2189: * Copy any supported values that are set.
2190: *
1.195 jj 2191: * If the preauth flag is set, we do not bother copying the string or
1.168 dtucker 2192: * array values that are not used pre-authentication, because any that we
1.328 djm 2193: * do use must be explicitly sent in mm_getpwnamallow().
1.168 dtucker 2194: */
1.153 dtucker 2195: void
1.168 dtucker 2196: copy_set_server_options(ServerOptions *dst, ServerOptions *src, int preauth)
1.153 dtucker 2197: {
1.247 djm 2198: #define M_CP_INTOPT(n) do {\
2199: if (src->n != -1) \
2200: dst->n = src->n; \
2201: } while (0)
2202:
1.168 dtucker 2203: M_CP_INTOPT(password_authentication);
2204: M_CP_INTOPT(gss_authentication);
2205: M_CP_INTOPT(pubkey_authentication);
2206: M_CP_INTOPT(kerberos_authentication);
2207: M_CP_INTOPT(hostbased_authentication);
1.209 djm 2208: M_CP_INTOPT(hostbased_uses_name_from_packet_only);
1.168 dtucker 2209: M_CP_INTOPT(kbd_interactive_authentication);
1.175 dtucker 2210: M_CP_INTOPT(permit_root_login);
1.188 djm 2211: M_CP_INTOPT(permit_empty_passwd);
1.168 dtucker 2212:
2213: M_CP_INTOPT(allow_tcp_forwarding);
1.251 millert 2214: M_CP_INTOPT(allow_streamlocal_forwarding);
1.178 pyr 2215: M_CP_INTOPT(allow_agent_forwarding);
1.301 djm 2216: M_CP_INTOPT(disable_forwarding);
1.309 djm 2217: M_CP_INTOPT(expose_userauth_info);
1.209 djm 2218: M_CP_INTOPT(permit_tun);
1.251 millert 2219: M_CP_INTOPT(fwd_opts.gateway_ports);
1.289 djm 2220: M_CP_INTOPT(fwd_opts.streamlocal_bind_unlink);
1.168 dtucker 2221: M_CP_INTOPT(x11_display_offset);
2222: M_CP_INTOPT(x11_forwarding);
2223: M_CP_INTOPT(x11_use_localhost);
1.244 djm 2224: M_CP_INTOPT(permit_tty);
1.250 djm 2225: M_CP_INTOPT(permit_user_rc);
1.180 djm 2226: M_CP_INTOPT(max_sessions);
1.184 dtucker 2227: M_CP_INTOPT(max_authtries);
1.300 markus 2228: M_CP_INTOPT(client_alive_count_max);
2229: M_CP_INTOPT(client_alive_interval);
1.213 djm 2230: M_CP_INTOPT(ip_qos_interactive);
2231: M_CP_INTOPT(ip_qos_bulk);
1.235 dtucker 2232: M_CP_INTOPT(rekey_limit);
2233: M_CP_INTOPT(rekey_interval);
1.308 djm 2234: M_CP_INTOPT(log_level);
1.289 djm 2235:
2236: /*
2237: * The bind_mask is a mode_t that may be unsigned, so we can't use
2238: * M_CP_INTOPT - it does a signed comparison that causes compiler
2239: * warnings.
2240: */
1.290 dtucker 2241: if (src->fwd_opts.streamlocal_bind_mask != (mode_t)-1) {
1.289 djm 2242: dst->fwd_opts.streamlocal_bind_mask =
2243: src->fwd_opts.streamlocal_bind_mask;
2244: }
1.247 djm 2245:
2246: /* M_CP_STROPT and M_CP_STRARRAYOPT should not appear before here */
2247: #define M_CP_STROPT(n) do {\
2248: if (src->n != NULL && dst->n != src->n) { \
2249: free(dst->n); \
2250: dst->n = src->n; \
2251: } \
2252: } while(0)
1.314 djm 2253: #define M_CP_STRARRAYOPT(s, num_s) do {\
2254: u_int i; \
2255: if (src->num_s != 0) { \
2256: for (i = 0; i < dst->num_s; i++) \
2257: free(dst->s[i]); \
2258: free(dst->s); \
2259: dst->s = xcalloc(src->num_s, sizeof(*dst->s)); \
2260: for (i = 0; i < src->num_s; i++) \
2261: dst->s[i] = xstrdup(src->s[i]); \
2262: dst->num_s = src->num_s; \
1.312 djm 2263: } \
2264: } while(0)
1.168 dtucker 2265:
1.218 djm 2266: /* See comment in servconf.h */
2267: COPY_MATCH_STRING_OPTS();
1.282 djm 2268:
2269: /* Arguments that accept '+...' need to be expanded */
2270: assemble_algorithms(dst);
1.216 djm 2271:
1.217 dtucker 2272: /*
2273: * The only things that should be below this point are string options
2274: * which are only used after authentication.
2275: */
1.168 dtucker 2276: if (preauth)
2277: return;
1.219 djm 2278:
1.283 djm 2279: /* These options may be "none" to clear a global setting */
1.168 dtucker 2280: M_CP_STROPT(adm_forced_command);
1.283 djm 2281: if (option_clear_or_none(dst->adm_forced_command)) {
2282: free(dst->adm_forced_command);
2283: dst->adm_forced_command = NULL;
2284: }
1.176 djm 2285: M_CP_STROPT(chroot_directory);
1.283 djm 2286: if (option_clear_or_none(dst->chroot_directory)) {
2287: free(dst->chroot_directory);
2288: dst->chroot_directory = NULL;
2289: }
1.153 dtucker 2290: }
1.168 dtucker 2291:
2292: #undef M_CP_INTOPT
2293: #undef M_CP_STROPT
1.219 djm 2294: #undef M_CP_STRARRAYOPT
1.153 dtucker 2295:
2296: void
1.338 markus 2297: parse_server_config(ServerOptions *options, const char *filename,
2298: struct sshbuf *conf, struct connection_info *connectinfo)
1.134 djm 2299: {
1.153 dtucker 2300: int active, linenum, bad_options = 0;
1.136 dtucker 2301: char *cp, *obuf, *cbuf;
1.134 djm 2302:
1.338 markus 2303: debug2("%s: config %s len %zu", __func__, filename, sshbuf_len(conf));
1.134 djm 2304:
1.287 djm 2305: if ((obuf = cbuf = sshbuf_dup_string(conf)) == NULL)
2306: fatal("%s: sshbuf_dup_string failed", __func__);
1.226 dtucker 2307: active = connectinfo ? 0 : 1;
1.137 dtucker 2308: linenum = 1;
1.140 deraadt 2309: while ((cp = strsep(&cbuf, "\n")) != NULL) {
1.134 djm 2310: if (process_server_config_line(options, cp, filename,
1.226 dtucker 2311: linenum++, &active, connectinfo) != 0)
1.94 markus 2312: bad_options++;
1.1 deraadt 2313: }
1.239 djm 2314: free(obuf);
1.78 stevesk 2315: if (bad_options > 0)
2316: fatal("%s: terminating, %d bad configuration options",
2317: filename, bad_options);
1.266 dtucker 2318: process_queued_listen_addrs(options);
1.182 dtucker 2319: }
2320:
2321: static const char *
1.221 djm 2322: fmt_multistate_int(int val, const struct multistate *m)
2323: {
2324: u_int i;
2325:
2326: for (i = 0; m[i].key != NULL; i++) {
2327: if (m[i].value == val)
2328: return m[i].key;
2329: }
2330: return "UNKNOWN";
2331: }
2332:
2333: static const char *
1.182 dtucker 2334: fmt_intarg(ServerOpCodes code, int val)
2335: {
1.221 djm 2336: if (val == -1)
2337: return "unset";
2338: switch (code) {
2339: case sAddressFamily:
2340: return fmt_multistate_int(val, multistate_addressfamily);
2341: case sPermitRootLogin:
2342: return fmt_multistate_int(val, multistate_permitrootlogin);
2343: case sGatewayPorts:
2344: return fmt_multistate_int(val, multistate_gatewayports);
2345: case sCompression:
2346: return fmt_multistate_int(val, multistate_compression);
1.233 djm 2347: case sAllowTcpForwarding:
2348: return fmt_multistate_int(val, multistate_tcpfwd);
1.251 millert 2349: case sAllowStreamLocalForwarding:
2350: return fmt_multistate_int(val, multistate_tcpfwd);
1.256 djm 2351: case sFingerprintHash:
2352: return ssh_digest_alg_name(val);
1.221 djm 2353: default:
2354: switch (val) {
2355: case 0:
2356: return "no";
2357: case 1:
2358: return "yes";
2359: default:
2360: return "UNKNOWN";
2361: }
1.182 dtucker 2362: }
2363: }
2364:
2365: static void
2366: dump_cfg_int(ServerOpCodes code, int val)
2367: {
2368: printf("%s %d\n", lookup_opcode_name(code), val);
2369: }
2370:
2371: static void
1.263 dtucker 2372: dump_cfg_oct(ServerOpCodes code, int val)
2373: {
2374: printf("%s 0%o\n", lookup_opcode_name(code), val);
2375: }
2376:
2377: static void
1.182 dtucker 2378: dump_cfg_fmtint(ServerOpCodes code, int val)
2379: {
2380: printf("%s %s\n", lookup_opcode_name(code), fmt_intarg(code, val));
2381: }
2382:
2383: static void
2384: dump_cfg_string(ServerOpCodes code, const char *val)
2385: {
1.257 djm 2386: printf("%s %s\n", lookup_opcode_name(code),
2387: val == NULL ? "none" : val);
1.182 dtucker 2388: }
2389:
2390: static void
2391: dump_cfg_strarray(ServerOpCodes code, u_int count, char **vals)
2392: {
2393: u_int i;
2394:
2395: for (i = 0; i < count; i++)
1.219 djm 2396: printf("%s %s\n", lookup_opcode_name(code), vals[i]);
2397: }
2398:
2399: static void
2400: dump_cfg_strarray_oneline(ServerOpCodes code, u_int count, char **vals)
2401: {
2402: u_int i;
2403:
1.291 djm 2404: if (count <= 0 && code != sAuthenticationMethods)
1.261 dtucker 2405: return;
1.219 djm 2406: printf("%s", lookup_opcode_name(code));
2407: for (i = 0; i < count; i++)
2408: printf(" %s", vals[i]);
1.291 djm 2409: if (code == sAuthenticationMethods && count == 0)
2410: printf(" any");
1.219 djm 2411: printf("\n");
1.182 dtucker 2412: }
2413:
1.315 djm 2414: static char *
2415: format_listen_addrs(struct listenaddr *la)
1.182 dtucker 2416: {
1.315 djm 2417: int r;
1.182 dtucker 2418: struct addrinfo *ai;
1.315 djm 2419: char addr[NI_MAXHOST], port[NI_MAXSERV];
1.263 dtucker 2420: char *laddr1 = xstrdup(""), *laddr2 = NULL;
1.182 dtucker 2421:
1.263 dtucker 2422: /*
2423: * ListenAddress must be after Port. add_one_listen_addr pushes
2424: * addresses onto a stack, so to maintain ordering we need to
2425: * print these in reverse order.
2426: */
1.315 djm 2427: for (ai = la->addrs; ai; ai = ai->ai_next) {
2428: if ((r = getnameinfo(ai->ai_addr, ai->ai_addrlen, addr,
1.182 dtucker 2429: sizeof(addr), port, sizeof(port),
2430: NI_NUMERICHOST|NI_NUMERICSERV)) != 0) {
1.315 djm 2431: error("getnameinfo: %.100s", ssh_gai_strerror(r));
2432: continue;
2433: }
2434: laddr2 = laddr1;
2435: if (ai->ai_family == AF_INET6) {
2436: xasprintf(&laddr1, "listenaddress [%s]:%s%s%s\n%s",
2437: addr, port,
2438: la->rdomain == NULL ? "" : " rdomain ",
2439: la->rdomain == NULL ? "" : la->rdomain,
2440: laddr2);
1.182 dtucker 2441: } else {
1.315 djm 2442: xasprintf(&laddr1, "listenaddress %s:%s%s%s\n%s",
2443: addr, port,
2444: la->rdomain == NULL ? "" : " rdomain ",
2445: la->rdomain == NULL ? "" : la->rdomain,
2446: laddr2);
1.182 dtucker 2447: }
1.315 djm 2448: free(laddr2);
2449: }
2450: return laddr1;
2451: }
2452:
2453: void
2454: dump_config(ServerOptions *o)
2455: {
2456: char *s;
2457: u_int i;
2458:
2459: /* these are usually at the top of the config */
2460: for (i = 0; i < o->num_ports; i++)
2461: printf("port %d\n", o->ports[i]);
2462: dump_cfg_fmtint(sAddressFamily, o->address_family);
2463:
2464: for (i = 0; i < o->num_listen_addrs; i++) {
2465: s = format_listen_addrs(&o->listen_addrs[i]);
2466: printf("%s", s);
2467: free(s);
1.182 dtucker 2468: }
2469:
2470: /* integer arguments */
2471: dump_cfg_int(sLoginGraceTime, o->login_grace_time);
2472: dump_cfg_int(sX11DisplayOffset, o->x11_display_offset);
2473: dump_cfg_int(sMaxAuthTries, o->max_authtries);
1.189 djm 2474: dump_cfg_int(sMaxSessions, o->max_sessions);
1.182 dtucker 2475: dump_cfg_int(sClientAliveInterval, o->client_alive_interval);
2476: dump_cfg_int(sClientAliveCountMax, o->client_alive_count_max);
1.263 dtucker 2477: dump_cfg_oct(sStreamLocalBindMask, o->fwd_opts.streamlocal_bind_mask);
1.182 dtucker 2478:
2479: /* formatted integer arguments */
2480: dump_cfg_fmtint(sPermitRootLogin, o->permit_root_login);
2481: dump_cfg_fmtint(sIgnoreRhosts, o->ignore_rhosts);
2482: dump_cfg_fmtint(sIgnoreUserKnownHosts, o->ignore_user_known_hosts);
2483: dump_cfg_fmtint(sHostbasedAuthentication, o->hostbased_authentication);
2484: dump_cfg_fmtint(sHostbasedUsesNameFromPacketOnly,
2485: o->hostbased_uses_name_from_packet_only);
2486: dump_cfg_fmtint(sPubkeyAuthentication, o->pubkey_authentication);
1.187 djm 2487: #ifdef KRB5
1.182 dtucker 2488: dump_cfg_fmtint(sKerberosAuthentication, o->kerberos_authentication);
2489: dump_cfg_fmtint(sKerberosOrLocalPasswd, o->kerberos_or_local_passwd);
2490: dump_cfg_fmtint(sKerberosTicketCleanup, o->kerberos_ticket_cleanup);
2491: dump_cfg_fmtint(sKerberosGetAFSToken, o->kerberos_get_afs_token);
1.187 djm 2492: #endif
2493: #ifdef GSSAPI
1.182 dtucker 2494: dump_cfg_fmtint(sGssAuthentication, o->gss_authentication);
2495: dump_cfg_fmtint(sGssCleanupCreds, o->gss_cleanup_creds);
1.187 djm 2496: #endif
1.182 dtucker 2497: dump_cfg_fmtint(sPasswordAuthentication, o->password_authentication);
2498: dump_cfg_fmtint(sKbdInteractiveAuthentication,
2499: o->kbd_interactive_authentication);
2500: dump_cfg_fmtint(sChallengeResponseAuthentication,
2501: o->challenge_response_authentication);
2502: dump_cfg_fmtint(sPrintMotd, o->print_motd);
2503: dump_cfg_fmtint(sPrintLastLog, o->print_lastlog);
2504: dump_cfg_fmtint(sX11Forwarding, o->x11_forwarding);
2505: dump_cfg_fmtint(sX11UseLocalhost, o->x11_use_localhost);
1.244 djm 2506: dump_cfg_fmtint(sPermitTTY, o->permit_tty);
1.250 djm 2507: dump_cfg_fmtint(sPermitUserRC, o->permit_user_rc);
1.182 dtucker 2508: dump_cfg_fmtint(sStrictModes, o->strict_modes);
2509: dump_cfg_fmtint(sTCPKeepAlive, o->tcp_keep_alive);
2510: dump_cfg_fmtint(sEmptyPasswd, o->permit_empty_passwd);
2511: dump_cfg_fmtint(sCompression, o->compression);
1.251 millert 2512: dump_cfg_fmtint(sGatewayPorts, o->fwd_opts.gateway_ports);
1.182 dtucker 2513: dump_cfg_fmtint(sUseDNS, o->use_dns);
2514: dump_cfg_fmtint(sAllowTcpForwarding, o->allow_tcp_forwarding);
1.261 dtucker 2515: dump_cfg_fmtint(sAllowAgentForwarding, o->allow_agent_forwarding);
1.301 djm 2516: dump_cfg_fmtint(sDisableForwarding, o->disable_forwarding);
1.251 millert 2517: dump_cfg_fmtint(sAllowStreamLocalForwarding, o->allow_streamlocal_forwarding);
1.288 djm 2518: dump_cfg_fmtint(sStreamLocalBindUnlink, o->fwd_opts.streamlocal_bind_unlink);
1.256 djm 2519: dump_cfg_fmtint(sFingerprintHash, o->fingerprint_hash);
1.309 djm 2520: dump_cfg_fmtint(sExposeAuthInfo, o->expose_userauth_info);
1.182 dtucker 2521:
2522: /* string arguments */
2523: dump_cfg_string(sPidFile, o->pid_file);
2524: dump_cfg_string(sXAuthLocation, o->xauth_location);
1.252 djm 2525: dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
2526: dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
1.182 dtucker 2527: dump_cfg_string(sBanner, o->banner);
2528: dump_cfg_string(sForceCommand, o->adm_forced_command);
1.201 dtucker 2529: dump_cfg_string(sChrootDirectory, o->chroot_directory);
1.204 djm 2530: dump_cfg_string(sTrustedUserCAKeys, o->trusted_user_ca_keys);
2531: dump_cfg_string(sRevokedKeys, o->revoked_keys_file);
1.208 djm 2532: dump_cfg_string(sAuthorizedPrincipalsFile,
2533: o->authorized_principals_file);
1.261 dtucker 2534: dump_cfg_string(sVersionAddendum, *o->version_addendum == '\0'
2535: ? "none" : o->version_addendum);
1.231 djm 2536: dump_cfg_string(sAuthorizedKeysCommand, o->authorized_keys_command);
2537: dump_cfg_string(sAuthorizedKeysCommandUser, o->authorized_keys_command_user);
1.270 djm 2538: dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
2539: dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
1.240 markus 2540: dump_cfg_string(sHostKeyAgent, o->host_key_agent);
1.252 djm 2541: dump_cfg_string(sKexAlgorithms,
1.253 djm 2542: o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
1.341 djm 2543: dump_cfg_string(sCASignatureAlgorithms, o->ca_sign_algorithms ?
2544: o->ca_sign_algorithms : SSH_ALLOWED_CA_SIGALGS);
1.258 djm 2545: dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
2546: o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
1.276 markus 2547: dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms ?
2548: o->hostkeyalgorithms : KEX_DEFAULT_PK_ALG);
1.258 djm 2549: dump_cfg_string(sPubkeyAcceptedKeyTypes, o->pubkey_key_types ?
2550: o->pubkey_key_types : KEX_DEFAULT_PK_ALG);
1.316 djm 2551: dump_cfg_string(sRDomain, o->routing_domain);
1.182 dtucker 2552:
2553: /* string arguments requiring a lookup */
2554: dump_cfg_string(sLogLevel, log_level_name(o->log_level));
2555: dump_cfg_string(sLogFacility, log_facility_name(o->log_facility));
2556:
2557: /* string array arguments */
1.219 djm 2558: dump_cfg_strarray_oneline(sAuthorizedKeysFile, o->num_authkeys_files,
2559: o->authorized_keys_files);
1.182 dtucker 2560: dump_cfg_strarray(sHostKeyFile, o->num_host_key_files,
2561: o->host_key_files);
1.261 dtucker 2562: dump_cfg_strarray(sHostCertificate, o->num_host_cert_files,
1.203 djm 2563: o->host_cert_files);
1.182 dtucker 2564: dump_cfg_strarray(sAllowUsers, o->num_allow_users, o->allow_users);
2565: dump_cfg_strarray(sDenyUsers, o->num_deny_users, o->deny_users);
2566: dump_cfg_strarray(sAllowGroups, o->num_allow_groups, o->allow_groups);
2567: dump_cfg_strarray(sDenyGroups, o->num_deny_groups, o->deny_groups);
2568: dump_cfg_strarray(sAcceptEnv, o->num_accept_env, o->accept_env);
1.332 djm 2569: dump_cfg_strarray(sSetEnv, o->num_setenv, o->setenv);
1.232 djm 2570: dump_cfg_strarray_oneline(sAuthenticationMethods,
2571: o->num_auth_methods, o->auth_methods);
1.182 dtucker 2572:
2573: /* other arguments */
2574: for (i = 0; i < o->num_subsystems; i++)
2575: printf("subsystem %s %s\n", o->subsystem_name[i],
2576: o->subsystem_args[i]);
2577:
2578: printf("maxstartups %d:%d:%d\n", o->max_startups_begin,
2579: o->max_startups_rate, o->max_startups);
2580:
1.318 djm 2581: s = NULL;
2582: for (i = 0; tunmode_desc[i].val != -1; i++) {
1.182 dtucker 2583: if (tunmode_desc[i].val == o->permit_tun) {
2584: s = tunmode_desc[i].text;
2585: break;
2586: }
1.318 djm 2587: }
1.182 dtucker 2588: dump_cfg_string(sPermitTunnel, s);
1.213 djm 2589:
1.214 stevesk 2590: printf("ipqos %s ", iptos2str(o->ip_qos_interactive));
2591: printf("%s\n", iptos2str(o->ip_qos_bulk));
1.235 dtucker 2592:
1.284 dtucker 2593: printf("rekeylimit %llu %d\n", (unsigned long long)o->rekey_limit,
1.241 djm 2594: o->rekey_interval);
1.182 dtucker 2595:
1.310 djm 2596: printf("permitopen");
2597: if (o->num_permitted_opens == 0)
2598: printf(" any");
2599: else {
2600: for (i = 0; i < o->num_permitted_opens; i++)
2601: printf(" %s", o->permitted_opens[i]);
1.329 djm 2602: }
2603: printf("\n");
1.330 djm 2604: printf("permitlisten");
2605: if (o->num_permitted_listens == 0)
1.329 djm 2606: printf(" any");
2607: else {
1.330 djm 2608: for (i = 0; i < o->num_permitted_listens; i++)
2609: printf(" %s", o->permitted_listens[i]);
1.310 djm 2610: }
2611: printf("\n");
1.334 djm 2612:
2613: if (o->permit_user_env_whitelist == NULL) {
2614: dump_cfg_fmtint(sPermitUserEnvironment, o->permit_user_env);
2615: } else {
2616: printf("permituserenvironment %s\n",
2617: o->permit_user_env_whitelist);
2618: }
2619:
1.1 deraadt 2620: }
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