Annotation of src/usr.bin/ssh/servconf.c, Revision 1.72
1.1 deraadt 1: /*
1.26 deraadt 2: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
3: * All rights reserved
1.34 markus 4: *
1.51 deraadt 5: * As far as I am concerned, the code I have written for this software
6: * can be used freely for any purpose. Any derived versions of this
7: * software must be clearly marked as such, and if the derived work is
8: * incompatible with the protocol description in the RFC file, it must be
9: * called by a name other than "ssh" or "Secure Shell".
1.26 deraadt 10: */
1.1 deraadt 11:
12: #include "includes.h"
1.72 ! stevesk 13: RCSID("$OpenBSD: servconf.c,v 1.71 2001/03/05 15:44:51 stevesk Exp $");
1.62 markus 14:
15: #ifdef KRB4
16: #include <krb.h>
17: #endif
18: #ifdef AFS
19: #include <kafs.h>
20: #endif
1.1 deraadt 21:
22: #include "ssh.h"
1.62 markus 23: #include "log.h"
1.1 deraadt 24: #include "servconf.h"
25: #include "xmalloc.h"
1.33 markus 26: #include "compat.h"
1.60 markus 27: #include "pathnames.h"
1.62 markus 28: #include "tildexpand.h"
29: #include "misc.h"
30: #include "cipher.h"
1.66 markus 31: #include "kex.h"
32: #include "mac.h"
1.1 deraadt 33:
1.29 markus 34: /* add listen address */
35: void add_listen_addr(ServerOptions *options, char *addr);
36:
1.62 markus 37: /* AF_UNSPEC or AF_INET or AF_INET6 */
38: extern int IPv4or6;
39:
1.1 deraadt 40: /* Initializes the server options to their default values. */
41:
1.34 markus 42: void
1.25 markus 43: initialize_server_options(ServerOptions *options)
1.1 deraadt 44: {
1.25 markus 45: memset(options, 0, sizeof(*options));
1.29 markus 46: options->num_ports = 0;
47: options->ports_from_cmdline = 0;
48: options->listen_addrs = NULL;
1.54 markus 49: options->num_host_key_files = 0;
1.36 markus 50: options->pid_file = NULL;
1.25 markus 51: options->server_key_bits = -1;
52: options->login_grace_time = -1;
53: options->key_regeneration_time = -1;
1.67 markus 54: options->permit_root_login = PERMIT_NOT_SET;
1.25 markus 55: options->ignore_rhosts = -1;
56: options->ignore_user_known_hosts = -1;
57: options->print_motd = -1;
1.72 ! stevesk 58: options->print_lastlog = -1;
1.25 markus 59: options->check_mail = -1;
60: options->x11_forwarding = -1;
61: options->x11_display_offset = -1;
1.42 markus 62: options->xauth_location = NULL;
1.25 markus 63: options->strict_modes = -1;
64: options->keepalives = -1;
65: options->log_facility = (SyslogFacility) - 1;
66: options->log_level = (LogLevel) - 1;
67: options->rhosts_authentication = -1;
68: options->rhosts_rsa_authentication = -1;
69: options->rsa_authentication = -1;
1.54 markus 70: options->pubkey_authentication = -1;
1.1 deraadt 71: #ifdef KRB4
1.25 markus 72: options->kerberos_authentication = -1;
73: options->kerberos_or_local_passwd = -1;
74: options->kerberos_ticket_cleanup = -1;
1.1 deraadt 75: #endif
1.4 dugsong 76: #ifdef AFS
1.25 markus 77: options->kerberos_tgt_passing = -1;
78: options->afs_token_passing = -1;
1.1 deraadt 79: #endif
1.25 markus 80: options->password_authentication = -1;
1.52 markus 81: options->kbd_interactive_authentication = -1;
1.63 markus 82: options->challenge_reponse_authentication = -1;
1.25 markus 83: options->permit_empty_passwd = -1;
84: options->use_login = -1;
1.53 markus 85: options->allow_tcp_forwarding = -1;
1.25 markus 86: options->num_allow_users = 0;
87: options->num_deny_users = 0;
88: options->num_allow_groups = 0;
89: options->num_deny_groups = 0;
1.33 markus 90: options->ciphers = NULL;
1.66 markus 91: options->macs = NULL;
1.33 markus 92: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 93: options->gateway_ports = -1;
1.43 jakob 94: options->num_subsystems = 0;
1.50 markus 95: options->max_startups_begin = -1;
96: options->max_startups_rate = -1;
1.46 markus 97: options->max_startups = -1;
1.57 markus 98: options->banner = NULL;
1.64 markus 99: options->reverse_mapping_check = -1;
1.1 deraadt 100: }
101:
1.34 markus 102: void
1.25 markus 103: fill_default_server_options(ServerOptions *options)
1.1 deraadt 104: {
1.54 markus 105: if (options->protocol == SSH_PROTO_UNKNOWN)
106: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
107: if (options->num_host_key_files == 0) {
108: /* fill default hostkeys for protocols */
109: if (options->protocol & SSH_PROTO_1)
1.60 markus 110: options->host_key_files[options->num_host_key_files++] = _PATH_HOST_KEY_FILE;
1.54 markus 111: if (options->protocol & SSH_PROTO_2)
1.60 markus 112: options->host_key_files[options->num_host_key_files++] = _PATH_HOST_DSA_KEY_FILE;
1.54 markus 113: }
1.29 markus 114: if (options->num_ports == 0)
115: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
116: if (options->listen_addrs == NULL)
117: add_listen_addr(options, NULL);
1.36 markus 118: if (options->pid_file == NULL)
1.60 markus 119: options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
1.25 markus 120: if (options->server_key_bits == -1)
121: options->server_key_bits = 768;
122: if (options->login_grace_time == -1)
123: options->login_grace_time = 600;
124: if (options->key_regeneration_time == -1)
125: options->key_regeneration_time = 3600;
1.67 markus 126: if (options->permit_root_login == PERMIT_NOT_SET)
127: options->permit_root_login = PERMIT_YES;
1.25 markus 128: if (options->ignore_rhosts == -1)
1.30 markus 129: options->ignore_rhosts = 1;
1.25 markus 130: if (options->ignore_user_known_hosts == -1)
131: options->ignore_user_known_hosts = 0;
132: if (options->check_mail == -1)
133: options->check_mail = 0;
134: if (options->print_motd == -1)
135: options->print_motd = 1;
1.72 ! stevesk 136: if (options->print_lastlog == -1)
! 137: options->print_lastlog = 1;
1.25 markus 138: if (options->x11_forwarding == -1)
1.30 markus 139: options->x11_forwarding = 0;
1.25 markus 140: if (options->x11_display_offset == -1)
1.30 markus 141: options->x11_display_offset = 10;
1.42 markus 142: #ifdef XAUTH_PATH
143: if (options->xauth_location == NULL)
144: options->xauth_location = XAUTH_PATH;
145: #endif /* XAUTH_PATH */
1.25 markus 146: if (options->strict_modes == -1)
147: options->strict_modes = 1;
148: if (options->keepalives == -1)
149: options->keepalives = 1;
150: if (options->log_facility == (SyslogFacility) (-1))
151: options->log_facility = SYSLOG_FACILITY_AUTH;
152: if (options->log_level == (LogLevel) (-1))
1.58 markus 153: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 154: if (options->rhosts_authentication == -1)
155: options->rhosts_authentication = 0;
156: if (options->rhosts_rsa_authentication == -1)
1.30 markus 157: options->rhosts_rsa_authentication = 0;
1.25 markus 158: if (options->rsa_authentication == -1)
159: options->rsa_authentication = 1;
1.54 markus 160: if (options->pubkey_authentication == -1)
161: options->pubkey_authentication = 1;
1.1 deraadt 162: #ifdef KRB4
1.25 markus 163: if (options->kerberos_authentication == -1)
164: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
165: if (options->kerberos_or_local_passwd == -1)
166: options->kerberos_or_local_passwd = 1;
167: if (options->kerberos_ticket_cleanup == -1)
168: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 169: #endif /* KRB4 */
170: #ifdef AFS
1.25 markus 171: if (options->kerberos_tgt_passing == -1)
172: options->kerberos_tgt_passing = 0;
173: if (options->afs_token_passing == -1)
174: options->afs_token_passing = k_hasafs();
1.4 dugsong 175: #endif /* AFS */
1.25 markus 176: if (options->password_authentication == -1)
177: options->password_authentication = 1;
1.52 markus 178: if (options->kbd_interactive_authentication == -1)
179: options->kbd_interactive_authentication = 0;
1.63 markus 180: if (options->challenge_reponse_authentication == -1)
181: options->challenge_reponse_authentication = 1;
1.25 markus 182: if (options->permit_empty_passwd == -1)
1.30 markus 183: options->permit_empty_passwd = 0;
1.25 markus 184: if (options->use_login == -1)
185: options->use_login = 0;
1.53 markus 186: if (options->allow_tcp_forwarding == -1)
187: options->allow_tcp_forwarding = 1;
1.38 markus 188: if (options->gateway_ports == -1)
189: options->gateway_ports = 0;
1.46 markus 190: if (options->max_startups == -1)
191: options->max_startups = 10;
1.50 markus 192: if (options->max_startups_rate == -1)
193: options->max_startups_rate = 100; /* 100% */
194: if (options->max_startups_begin == -1)
195: options->max_startups_begin = options->max_startups;
1.64 markus 196: if (options->reverse_mapping_check == -1)
197: options->reverse_mapping_check = 0;
1.1 deraadt 198: }
199:
200: /* Keyword tokens. */
1.25 markus 201: typedef enum {
202: sBadOption, /* == unknown option */
203: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
204: sPermitRootLogin, sLogFacility, sLogLevel,
205: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 206: #ifdef KRB4
1.25 markus 207: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 208: #endif
209: #ifdef AFS
1.25 markus 210: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 211: #endif
1.63 markus 212: sChallengeResponseAuthentication,
1.52 markus 213: sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
1.72 ! stevesk 214: sPrintMotd, sPrintLastLog, sIgnoreRhosts,
! 215: sX11Forwarding, sX11DisplayOffset,
1.69 stevesk 216: sStrictModes, sEmptyPasswd, sKeepAlives, sCheckMail,
1.53 markus 217: sUseLogin, sAllowTcpForwarding,
218: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.66 markus 219: sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
1.54 markus 220: sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
1.64 markus 221: sBanner, sReverseMappingCheck
1.1 deraadt 222: } ServerOpCodes;
223:
224: /* Textual representation of the tokens. */
1.25 markus 225: static struct {
226: const char *name;
227: ServerOpCodes opcode;
228: } keywords[] = {
229: { "port", sPort },
230: { "hostkey", sHostKeyFile },
1.54 markus 231: { "hostdsakey", sHostKeyFile }, /* alias */
1.65 stevesk 232: { "pidfile", sPidFile },
1.25 markus 233: { "serverkeybits", sServerKeyBits },
234: { "logingracetime", sLoginGraceTime },
235: { "keyregenerationinterval", sKeyRegenerationTime },
236: { "permitrootlogin", sPermitRootLogin },
237: { "syslogfacility", sLogFacility },
238: { "loglevel", sLogLevel },
239: { "rhostsauthentication", sRhostsAuthentication },
240: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
241: { "rsaauthentication", sRSAAuthentication },
1.54 markus 242: { "pubkeyauthentication", sPubkeyAuthentication },
243: { "dsaauthentication", sPubkeyAuthentication }, /* alias */
1.1 deraadt 244: #ifdef KRB4
1.25 markus 245: { "kerberosauthentication", sKerberosAuthentication },
246: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
247: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 248: #endif
1.4 dugsong 249: #ifdef AFS
1.25 markus 250: { "kerberostgtpassing", sKerberosTgtPassing },
251: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 252: #endif
1.25 markus 253: { "passwordauthentication", sPasswordAuthentication },
1.52 markus 254: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
1.63 markus 255: { "challengeresponseauthentication", sChallengeResponseAuthentication },
256: { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */
1.25 markus 257: { "checkmail", sCheckMail },
258: { "listenaddress", sListenAddress },
259: { "printmotd", sPrintMotd },
1.72 ! stevesk 260: { "printlastlog", sPrintLastLog },
1.25 markus 261: { "ignorerhosts", sIgnoreRhosts },
262: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
263: { "x11forwarding", sX11Forwarding },
264: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 265: { "xauthlocation", sXAuthLocation },
1.25 markus 266: { "strictmodes", sStrictModes },
267: { "permitemptypasswords", sEmptyPasswd },
268: { "uselogin", sUseLogin },
269: { "keepalive", sKeepAlives },
1.53 markus 270: { "allowtcpforwarding", sAllowTcpForwarding },
1.25 markus 271: { "allowusers", sAllowUsers },
272: { "denyusers", sDenyUsers },
273: { "allowgroups", sAllowGroups },
274: { "denygroups", sDenyGroups },
1.33 markus 275: { "ciphers", sCiphers },
1.66 markus 276: { "macs", sMacs },
1.33 markus 277: { "protocol", sProtocol },
1.38 markus 278: { "gatewayports", sGatewayPorts },
1.43 jakob 279: { "subsystem", sSubsystem },
1.46 markus 280: { "maxstartups", sMaxStartups },
1.57 markus 281: { "banner", sBanner },
1.64 markus 282: { "reversemappingcheck", sReverseMappingCheck },
1.25 markus 283: { NULL, 0 }
1.1 deraadt 284: };
285:
1.27 markus 286: /*
287: * Returns the number of the token pointed to by cp of length len. Never
288: * returns if the token is not known.
289: */
1.1 deraadt 290:
1.34 markus 291: static ServerOpCodes
1.25 markus 292: parse_token(const char *cp, const char *filename,
293: int linenum)
1.1 deraadt 294: {
1.55 markus 295: u_int i;
1.1 deraadt 296:
1.25 markus 297: for (i = 0; keywords[i].name; i++)
1.28 markus 298: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 299: return keywords[i].opcode;
300:
301: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
302: filename, linenum, cp);
303: return sBadOption;
1.1 deraadt 304: }
305:
1.29 markus 306: /*
307: * add listen address
308: */
1.34 markus 309: void
1.29 markus 310: add_listen_addr(ServerOptions *options, char *addr)
311: {
312: struct addrinfo hints, *ai, *aitop;
313: char strport[NI_MAXSERV];
314: int gaierr;
315: int i;
316:
317: if (options->num_ports == 0)
318: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
319: for (i = 0; i < options->num_ports; i++) {
320: memset(&hints, 0, sizeof(hints));
321: hints.ai_family = IPv4or6;
322: hints.ai_socktype = SOCK_STREAM;
323: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
324: snprintf(strport, sizeof strport, "%d", options->ports[i]);
325: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
1.70 millert 326: fatal("bad addr or host: %s (%s)",
1.29 markus 327: addr ? addr : "<NULL>",
328: gai_strerror(gaierr));
329: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
330: ;
331: ai->ai_next = options->listen_addrs;
332: options->listen_addrs = aitop;
333: }
334: }
335:
1.1 deraadt 336: /* Reads the server configuration file. */
337:
1.34 markus 338: void
1.25 markus 339: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 340: {
1.25 markus 341: FILE *f;
342: char line[1024];
1.47 ho 343: char *cp, **charptr, *arg;
1.25 markus 344: int linenum, *intptr, value;
345: int bad_options = 0;
346: ServerOpCodes opcode;
1.43 jakob 347: int i;
1.25 markus 348:
349: f = fopen(filename, "r");
350: if (!f) {
351: perror(filename);
1.1 deraadt 352: exit(1);
1.25 markus 353: }
354: linenum = 0;
355: while (fgets(line, sizeof(line), f)) {
356: linenum++;
1.48 provos 357: cp = line;
358: arg = strdelim(&cp);
359: /* Ignore leading whitespace */
360: if (*arg == '\0')
1.49 markus 361: arg = strdelim(&cp);
1.61 djm 362: if (!arg || !*arg || *arg == '#')
1.25 markus 363: continue;
1.54 markus 364: intptr = NULL;
365: charptr = NULL;
1.47 ho 366: opcode = parse_token(arg, filename, linenum);
1.25 markus 367: switch (opcode) {
368: case sBadOption:
369: bad_options++;
370: continue;
371: case sPort:
1.29 markus 372: /* ignore ports from configfile if cmdline specifies ports */
373: if (options->ports_from_cmdline)
374: continue;
375: if (options->listen_addrs != NULL)
376: fatal("%s line %d: ports must be specified before "
377: "ListenAdress.\n", filename, linenum);
378: if (options->num_ports >= MAX_PORTS)
1.70 millert 379: fatal("%s line %d: too many ports.",
1.34 markus 380: filename, linenum);
1.48 provos 381: arg = strdelim(&cp);
1.47 ho 382: if (!arg || *arg == '\0')
1.70 millert 383: fatal("%s line %d: missing port number.",
1.29 markus 384: filename, linenum);
1.47 ho 385: options->ports[options->num_ports++] = atoi(arg);
1.29 markus 386: break;
387:
388: case sServerKeyBits:
389: intptr = &options->server_key_bits;
1.25 markus 390: parse_int:
1.48 provos 391: arg = strdelim(&cp);
1.47 ho 392: if (!arg || *arg == '\0') {
1.25 markus 393: fprintf(stderr, "%s line %d: missing integer value.\n",
394: filename, linenum);
395: exit(1);
396: }
1.47 ho 397: value = atoi(arg);
1.25 markus 398: if (*intptr == -1)
399: *intptr = value;
400: break;
401:
402: case sLoginGraceTime:
403: intptr = &options->login_grace_time;
404: goto parse_int;
405:
406: case sKeyRegenerationTime:
407: intptr = &options->key_regeneration_time;
408: goto parse_int;
409:
410: case sListenAddress:
1.48 provos 411: arg = strdelim(&cp);
1.47 ho 412: if (!arg || *arg == '\0')
1.70 millert 413: fatal("%s line %d: missing inet addr.",
1.29 markus 414: filename, linenum);
1.47 ho 415: add_listen_addr(options, arg);
1.25 markus 416: break;
417:
418: case sHostKeyFile:
1.54 markus 419: intptr = &options->num_host_key_files;
420: if (*intptr >= MAX_HOSTKEYS) {
1.68 deraadt 421: fprintf(stderr,
422: "%s line %d: too many host keys specified (max %d).\n",
1.54 markus 423: filename, linenum, MAX_HOSTKEYS);
424: exit(1);
425: }
426: charptr = &options->host_key_files[*intptr];
1.42 markus 427: parse_filename:
1.48 provos 428: arg = strdelim(&cp);
1.47 ho 429: if (!arg || *arg == '\0') {
1.25 markus 430: fprintf(stderr, "%s line %d: missing file name.\n",
1.36 markus 431: filename, linenum);
432: exit(1);
433: }
1.54 markus 434: if (*charptr == NULL) {
1.47 ho 435: *charptr = tilde_expand_filename(arg, getuid());
1.54 markus 436: /* increase optional counter */
437: if (intptr != NULL)
438: *intptr = *intptr + 1;
439: }
1.36 markus 440: break;
441:
442: case sPidFile:
443: charptr = &options->pid_file;
1.42 markus 444: goto parse_filename;
1.25 markus 445:
446: case sPermitRootLogin:
447: intptr = &options->permit_root_login;
1.48 provos 448: arg = strdelim(&cp);
1.47 ho 449: if (!arg || *arg == '\0') {
1.71 stevesk 450: fprintf(stderr, "%s line %d: missing yes/"
451: "without-password/forced-commands-only/no "
452: "argument.\n", filename, linenum);
1.25 markus 453: exit(1);
454: }
1.47 ho 455: if (strcmp(arg, "without-password") == 0)
1.67 markus 456: value = PERMIT_NO_PASSWD;
457: else if (strcmp(arg, "forced-commands-only") == 0)
458: value = PERMIT_FORCED_ONLY;
1.47 ho 459: else if (strcmp(arg, "yes") == 0)
1.67 markus 460: value = PERMIT_YES;
1.47 ho 461: else if (strcmp(arg, "no") == 0)
1.67 markus 462: value = PERMIT_NO;
1.25 markus 463: else {
1.67 markus 464: fprintf(stderr, "%s line %d: Bad yes/"
465: "without-password/forced-commands-only/no "
466: "argument: %s\n", filename, linenum, arg);
1.25 markus 467: exit(1);
468: }
469: if (*intptr == -1)
470: *intptr = value;
471: break;
472:
473: case sIgnoreRhosts:
474: intptr = &options->ignore_rhosts;
475: parse_flag:
1.48 provos 476: arg = strdelim(&cp);
1.47 ho 477: if (!arg || *arg == '\0') {
1.25 markus 478: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
479: filename, linenum);
480: exit(1);
481: }
1.47 ho 482: if (strcmp(arg, "yes") == 0)
1.25 markus 483: value = 1;
1.47 ho 484: else if (strcmp(arg, "no") == 0)
1.25 markus 485: value = 0;
486: else {
487: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 488: filename, linenum, arg);
1.25 markus 489: exit(1);
490: }
491: if (*intptr == -1)
492: *intptr = value;
493: break;
494:
495: case sIgnoreUserKnownHosts:
496: intptr = &options->ignore_user_known_hosts;
1.31 markus 497: goto parse_flag;
1.25 markus 498:
499: case sRhostsAuthentication:
500: intptr = &options->rhosts_authentication;
501: goto parse_flag;
502:
503: case sRhostsRSAAuthentication:
504: intptr = &options->rhosts_rsa_authentication;
505: goto parse_flag;
506:
507: case sRSAAuthentication:
508: intptr = &options->rsa_authentication;
1.39 markus 509: goto parse_flag;
510:
1.54 markus 511: case sPubkeyAuthentication:
512: intptr = &options->pubkey_authentication;
1.25 markus 513: goto parse_flag;
514:
1.1 deraadt 515: #ifdef KRB4
1.25 markus 516: case sKerberosAuthentication:
517: intptr = &options->kerberos_authentication;
518: goto parse_flag;
519:
520: case sKerberosOrLocalPasswd:
521: intptr = &options->kerberos_or_local_passwd;
522: goto parse_flag;
523:
524: case sKerberosTicketCleanup:
525: intptr = &options->kerberos_ticket_cleanup;
526: goto parse_flag;
1.1 deraadt 527: #endif
1.25 markus 528:
1.4 dugsong 529: #ifdef AFS
1.25 markus 530: case sKerberosTgtPassing:
531: intptr = &options->kerberos_tgt_passing;
532: goto parse_flag;
533:
534: case sAFSTokenPassing:
535: intptr = &options->afs_token_passing;
536: goto parse_flag;
537: #endif
538:
539: case sPasswordAuthentication:
540: intptr = &options->password_authentication;
1.52 markus 541: goto parse_flag;
542:
543: case sKbdInteractiveAuthentication:
544: intptr = &options->kbd_interactive_authentication;
1.25 markus 545: goto parse_flag;
546:
547: case sCheckMail:
548: intptr = &options->check_mail;
549: goto parse_flag;
1.10 markus 550:
1.63 markus 551: case sChallengeResponseAuthentication:
552: intptr = &options->challenge_reponse_authentication;
1.25 markus 553: goto parse_flag;
554:
555: case sPrintMotd:
556: intptr = &options->print_motd;
1.72 ! stevesk 557: goto parse_flag;
! 558:
! 559: case sPrintLastLog:
! 560: intptr = &options->print_lastlog;
1.25 markus 561: goto parse_flag;
562:
563: case sX11Forwarding:
564: intptr = &options->x11_forwarding;
565: goto parse_flag;
566:
567: case sX11DisplayOffset:
568: intptr = &options->x11_display_offset;
569: goto parse_int;
570:
1.42 markus 571: case sXAuthLocation:
572: charptr = &options->xauth_location;
573: goto parse_filename;
1.65 stevesk 574:
1.25 markus 575: case sStrictModes:
576: intptr = &options->strict_modes;
577: goto parse_flag;
578:
579: case sKeepAlives:
580: intptr = &options->keepalives;
581: goto parse_flag;
582:
583: case sEmptyPasswd:
584: intptr = &options->permit_empty_passwd;
585: goto parse_flag;
586:
587: case sUseLogin:
588: intptr = &options->use_login;
1.38 markus 589: goto parse_flag;
590:
591: case sGatewayPorts:
592: intptr = &options->gateway_ports;
1.64 markus 593: goto parse_flag;
594:
595: case sReverseMappingCheck:
596: intptr = &options->reverse_mapping_check;
1.25 markus 597: goto parse_flag;
598:
599: case sLogFacility:
600: intptr = (int *) &options->log_facility;
1.48 provos 601: arg = strdelim(&cp);
1.47 ho 602: value = log_facility_number(arg);
1.25 markus 603: if (value == (SyslogFacility) - 1)
1.70 millert 604: fatal("%.200s line %d: unsupported log facility '%s'",
1.47 ho 605: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 606: if (*intptr == -1)
607: *intptr = (SyslogFacility) value;
608: break;
609:
610: case sLogLevel:
611: intptr = (int *) &options->log_level;
1.48 provos 612: arg = strdelim(&cp);
1.47 ho 613: value = log_level_number(arg);
1.25 markus 614: if (value == (LogLevel) - 1)
1.70 millert 615: fatal("%.200s line %d: unsupported log level '%s'",
1.47 ho 616: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 617: if (*intptr == -1)
618: *intptr = (LogLevel) value;
619: break;
1.53 markus 620:
621: case sAllowTcpForwarding:
622: intptr = &options->allow_tcp_forwarding;
623: goto parse_flag;
1.25 markus 624:
625: case sAllowUsers:
1.48 provos 626: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 627: if (options->num_allow_users >= MAX_ALLOW_USERS)
1.70 millert 628: fatal("%s line %d: too many allow users.",
1.33 markus 629: filename, linenum);
1.47 ho 630: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 631: }
632: break;
633:
634: case sDenyUsers:
1.48 provos 635: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 636: if (options->num_deny_users >= MAX_DENY_USERS)
1.70 millert 637: fatal( "%s line %d: too many deny users.",
1.33 markus 638: filename, linenum);
1.47 ho 639: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 640: }
641: break;
642:
643: case sAllowGroups:
1.48 provos 644: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 645: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
1.70 millert 646: fatal("%s line %d: too many allow groups.",
1.33 markus 647: filename, linenum);
1.47 ho 648: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 649: }
650: break;
651:
652: case sDenyGroups:
1.48 provos 653: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 654: if (options->num_deny_groups >= MAX_DENY_GROUPS)
1.70 millert 655: fatal("%s line %d: too many deny groups.",
1.33 markus 656: filename, linenum);
1.47 ho 657: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 658: }
1.33 markus 659: break;
660:
661: case sCiphers:
1.48 provos 662: arg = strdelim(&cp);
1.47 ho 663: if (!arg || *arg == '\0')
1.41 markus 664: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 665: if (!ciphers_valid(arg))
1.40 markus 666: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 667: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 668: if (options->ciphers == NULL)
1.47 ho 669: options->ciphers = xstrdup(arg);
1.66 markus 670: break;
671:
672: case sMacs:
673: arg = strdelim(&cp);
674: if (!arg || *arg == '\0')
675: fatal("%s line %d: Missing argument.", filename, linenum);
676: if (!mac_valid(arg))
677: fatal("%s line %d: Bad SSH2 mac spec '%s'.",
678: filename, linenum, arg ? arg : "<NONE>");
679: if (options->macs == NULL)
680: options->macs = xstrdup(arg);
1.33 markus 681: break;
682:
683: case sProtocol:
684: intptr = &options->protocol;
1.48 provos 685: arg = strdelim(&cp);
1.47 ho 686: if (!arg || *arg == '\0')
1.41 markus 687: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 688: value = proto_spec(arg);
1.33 markus 689: if (value == SSH_PROTO_UNKNOWN)
690: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 691: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 692: if (*intptr == SSH_PROTO_UNKNOWN)
693: *intptr = value;
1.43 jakob 694: break;
695:
696: case sSubsystem:
697: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
698: fatal("%s line %d: too many subsystems defined.",
699: filename, linenum);
700: }
1.48 provos 701: arg = strdelim(&cp);
1.47 ho 702: if (!arg || *arg == '\0')
1.43 jakob 703: fatal("%s line %d: Missing subsystem name.",
704: filename, linenum);
705: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 706: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 707: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 708: filename, linenum, arg);
709: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 710: arg = strdelim(&cp);
1.47 ho 711: if (!arg || *arg == '\0')
1.43 jakob 712: fatal("%s line %d: Missing subsystem command.",
713: filename, linenum);
1.47 ho 714: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 715: options->num_subsystems++;
1.25 markus 716: break;
1.46 markus 717:
718: case sMaxStartups:
1.50 markus 719: arg = strdelim(&cp);
720: if (!arg || *arg == '\0')
721: fatal("%s line %d: Missing MaxStartups spec.",
722: filename, linenum);
723: if (sscanf(arg, "%d:%d:%d",
724: &options->max_startups_begin,
725: &options->max_startups_rate,
726: &options->max_startups) == 3) {
727: if (options->max_startups_begin >
728: options->max_startups ||
729: options->max_startups_rate > 100 ||
730: options->max_startups_rate < 1)
731: fatal("%s line %d: Illegal MaxStartups spec.",
732: filename, linenum);
733: break;
734: }
1.46 markus 735: intptr = &options->max_startups;
736: goto parse_int;
1.25 markus 737:
1.57 markus 738: case sBanner:
739: charptr = &options->banner;
740: goto parse_filename;
1.65 stevesk 741:
1.25 markus 742: default:
743: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 744: filename, linenum, arg, opcode);
1.25 markus 745: exit(1);
1.13 markus 746: }
1.48 provos 747: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.65 stevesk 748: fprintf(stderr,
1.47 ho 749: "%s line %d: garbage at end of line; \"%.200s\".\n",
750: filename, linenum, arg);
1.25 markus 751: exit(1);
1.13 markus 752: }
1.1 deraadt 753: }
1.25 markus 754: fclose(f);
755: if (bad_options > 0) {
756: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
757: filename, bad_options);
758: exit(1);
1.1 deraadt 759: }
760: }
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