Annotation of src/usr.bin/ssh/servconf.c, Revision 1.49
1.1 deraadt 1: /*
1.34 markus 2: *
1.26 deraadt 3: * servconf.c
1.34 markus 4: *
1.26 deraadt 5: * Author: Tatu Ylonen <ylo@cs.hut.fi>
1.34 markus 6: *
1.26 deraadt 7: * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
8: * All rights reserved
1.34 markus 9: *
1.26 deraadt 10: * Created: Mon Aug 21 15:48:58 1995 ylo
1.34 markus 11: *
1.26 deraadt 12: */
1.1 deraadt 13:
14: #include "includes.h"
1.49 ! markus 15: RCSID("$OpenBSD: servconf.c,v 1.48 2000/07/13 22:53:21 provos Exp $");
1.1 deraadt 16:
17: #include "ssh.h"
18: #include "servconf.h"
19: #include "xmalloc.h"
1.33 markus 20: #include "compat.h"
1.1 deraadt 21:
1.29 markus 22: /* add listen address */
23: void add_listen_addr(ServerOptions *options, char *addr);
24:
1.1 deraadt 25: /* Initializes the server options to their default values. */
26:
1.34 markus 27: void
1.25 markus 28: initialize_server_options(ServerOptions *options)
1.1 deraadt 29: {
1.25 markus 30: memset(options, 0, sizeof(*options));
1.29 markus 31: options->num_ports = 0;
32: options->ports_from_cmdline = 0;
33: options->listen_addrs = NULL;
1.25 markus 34: options->host_key_file = NULL;
1.37 markus 35: options->host_dsa_key_file = NULL;
1.36 markus 36: options->pid_file = NULL;
1.25 markus 37: options->server_key_bits = -1;
38: options->login_grace_time = -1;
39: options->key_regeneration_time = -1;
40: options->permit_root_login = -1;
41: options->ignore_rhosts = -1;
42: options->ignore_user_known_hosts = -1;
43: options->print_motd = -1;
44: options->check_mail = -1;
45: options->x11_forwarding = -1;
46: options->x11_display_offset = -1;
1.42 markus 47: options->xauth_location = NULL;
1.25 markus 48: options->strict_modes = -1;
49: options->keepalives = -1;
50: options->log_facility = (SyslogFacility) - 1;
51: options->log_level = (LogLevel) - 1;
52: options->rhosts_authentication = -1;
53: options->rhosts_rsa_authentication = -1;
54: options->rsa_authentication = -1;
1.39 markus 55: options->dsa_authentication = -1;
1.1 deraadt 56: #ifdef KRB4
1.25 markus 57: options->kerberos_authentication = -1;
58: options->kerberos_or_local_passwd = -1;
59: options->kerberos_ticket_cleanup = -1;
1.1 deraadt 60: #endif
1.4 dugsong 61: #ifdef AFS
1.25 markus 62: options->kerberos_tgt_passing = -1;
63: options->afs_token_passing = -1;
1.1 deraadt 64: #endif
1.25 markus 65: options->password_authentication = -1;
1.10 markus 66: #ifdef SKEY
1.25 markus 67: options->skey_authentication = -1;
1.10 markus 68: #endif
1.25 markus 69: options->permit_empty_passwd = -1;
70: options->use_login = -1;
71: options->num_allow_users = 0;
72: options->num_deny_users = 0;
73: options->num_allow_groups = 0;
74: options->num_deny_groups = 0;
1.33 markus 75: options->ciphers = NULL;
76: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 77: options->gateway_ports = -1;
1.43 jakob 78: options->num_subsystems = 0;
1.46 markus 79: options->max_startups = -1;
1.1 deraadt 80: }
81:
1.34 markus 82: void
1.25 markus 83: fill_default_server_options(ServerOptions *options)
1.1 deraadt 84: {
1.29 markus 85: if (options->num_ports == 0)
86: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
87: if (options->listen_addrs == NULL)
88: add_listen_addr(options, NULL);
1.25 markus 89: if (options->host_key_file == NULL)
90: options->host_key_file = HOST_KEY_FILE;
1.37 markus 91: if (options->host_dsa_key_file == NULL)
92: options->host_dsa_key_file = HOST_DSA_KEY_FILE;
1.36 markus 93: if (options->pid_file == NULL)
94: options->pid_file = SSH_DAEMON_PID_FILE;
1.25 markus 95: if (options->server_key_bits == -1)
96: options->server_key_bits = 768;
97: if (options->login_grace_time == -1)
98: options->login_grace_time = 600;
99: if (options->key_regeneration_time == -1)
100: options->key_regeneration_time = 3600;
101: if (options->permit_root_login == -1)
102: options->permit_root_login = 1; /* yes */
103: if (options->ignore_rhosts == -1)
1.30 markus 104: options->ignore_rhosts = 1;
1.25 markus 105: if (options->ignore_user_known_hosts == -1)
106: options->ignore_user_known_hosts = 0;
107: if (options->check_mail == -1)
108: options->check_mail = 0;
109: if (options->print_motd == -1)
110: options->print_motd = 1;
111: if (options->x11_forwarding == -1)
1.30 markus 112: options->x11_forwarding = 0;
1.25 markus 113: if (options->x11_display_offset == -1)
1.30 markus 114: options->x11_display_offset = 10;
1.42 markus 115: #ifdef XAUTH_PATH
116: if (options->xauth_location == NULL)
117: options->xauth_location = XAUTH_PATH;
118: #endif /* XAUTH_PATH */
1.25 markus 119: if (options->strict_modes == -1)
120: options->strict_modes = 1;
121: if (options->keepalives == -1)
122: options->keepalives = 1;
123: if (options->log_facility == (SyslogFacility) (-1))
124: options->log_facility = SYSLOG_FACILITY_AUTH;
125: if (options->log_level == (LogLevel) (-1))
126: options->log_level = SYSLOG_LEVEL_INFO;
127: if (options->rhosts_authentication == -1)
128: options->rhosts_authentication = 0;
129: if (options->rhosts_rsa_authentication == -1)
1.30 markus 130: options->rhosts_rsa_authentication = 0;
1.25 markus 131: if (options->rsa_authentication == -1)
132: options->rsa_authentication = 1;
1.39 markus 133: if (options->dsa_authentication == -1)
134: options->dsa_authentication = 1;
1.1 deraadt 135: #ifdef KRB4
1.25 markus 136: if (options->kerberos_authentication == -1)
137: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
138: if (options->kerberos_or_local_passwd == -1)
139: options->kerberos_or_local_passwd = 1;
140: if (options->kerberos_ticket_cleanup == -1)
141: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 142: #endif /* KRB4 */
143: #ifdef AFS
1.25 markus 144: if (options->kerberos_tgt_passing == -1)
145: options->kerberos_tgt_passing = 0;
146: if (options->afs_token_passing == -1)
147: options->afs_token_passing = k_hasafs();
1.4 dugsong 148: #endif /* AFS */
1.25 markus 149: if (options->password_authentication == -1)
150: options->password_authentication = 1;
1.10 markus 151: #ifdef SKEY
1.25 markus 152: if (options->skey_authentication == -1)
153: options->skey_authentication = 1;
1.10 markus 154: #endif
1.25 markus 155: if (options->permit_empty_passwd == -1)
1.30 markus 156: options->permit_empty_passwd = 0;
1.25 markus 157: if (options->use_login == -1)
158: options->use_login = 0;
1.33 markus 159: if (options->protocol == SSH_PROTO_UNKNOWN)
1.35 markus 160: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
1.38 markus 161: if (options->gateway_ports == -1)
162: options->gateway_ports = 0;
1.46 markus 163: if (options->max_startups == -1)
164: options->max_startups = 10;
1.1 deraadt 165: }
166:
167: /* Keyword tokens. */
1.25 markus 168: typedef enum {
169: sBadOption, /* == unknown option */
170: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
171: sPermitRootLogin, sLogFacility, sLogLevel,
172: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 173: #ifdef KRB4
1.25 markus 174: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 175: #endif
176: #ifdef AFS
1.25 markus 177: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 178: #endif
1.10 markus 179: #ifdef SKEY
1.25 markus 180: sSkeyAuthentication,
1.10 markus 181: #endif
1.25 markus 182: sPasswordAuthentication, sListenAddress,
183: sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
184: sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
185: sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.38 markus 186: sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile,
1.46 markus 187: sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups
1.1 deraadt 188: } ServerOpCodes;
189:
190: /* Textual representation of the tokens. */
1.25 markus 191: static struct {
192: const char *name;
193: ServerOpCodes opcode;
194: } keywords[] = {
195: { "port", sPort },
196: { "hostkey", sHostKeyFile },
1.37 markus 197: { "hostdsakey", sHostDSAKeyFile },
1.36 markus 198: { "pidfile", sPidFile },
1.25 markus 199: { "serverkeybits", sServerKeyBits },
200: { "logingracetime", sLoginGraceTime },
201: { "keyregenerationinterval", sKeyRegenerationTime },
202: { "permitrootlogin", sPermitRootLogin },
203: { "syslogfacility", sLogFacility },
204: { "loglevel", sLogLevel },
205: { "rhostsauthentication", sRhostsAuthentication },
206: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
207: { "rsaauthentication", sRSAAuthentication },
1.39 markus 208: { "dsaauthentication", sDSAAuthentication },
1.1 deraadt 209: #ifdef KRB4
1.25 markus 210: { "kerberosauthentication", sKerberosAuthentication },
211: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
212: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 213: #endif
1.4 dugsong 214: #ifdef AFS
1.25 markus 215: { "kerberostgtpassing", sKerberosTgtPassing },
216: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 217: #endif
1.25 markus 218: { "passwordauthentication", sPasswordAuthentication },
1.10 markus 219: #ifdef SKEY
1.25 markus 220: { "skeyauthentication", sSkeyAuthentication },
1.10 markus 221: #endif
1.25 markus 222: { "checkmail", sCheckMail },
223: { "listenaddress", sListenAddress },
224: { "printmotd", sPrintMotd },
225: { "ignorerhosts", sIgnoreRhosts },
226: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
227: { "x11forwarding", sX11Forwarding },
228: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 229: { "xauthlocation", sXAuthLocation },
1.25 markus 230: { "strictmodes", sStrictModes },
231: { "permitemptypasswords", sEmptyPasswd },
232: { "uselogin", sUseLogin },
233: { "randomseed", sRandomSeedFile },
234: { "keepalive", sKeepAlives },
235: { "allowusers", sAllowUsers },
236: { "denyusers", sDenyUsers },
237: { "allowgroups", sAllowGroups },
238: { "denygroups", sDenyGroups },
1.33 markus 239: { "ciphers", sCiphers },
240: { "protocol", sProtocol },
1.38 markus 241: { "gatewayports", sGatewayPorts },
1.43 jakob 242: { "subsystem", sSubsystem },
1.46 markus 243: { "maxstartups", sMaxStartups },
1.25 markus 244: { NULL, 0 }
1.1 deraadt 245: };
246:
1.27 markus 247: /*
248: * Returns the number of the token pointed to by cp of length len. Never
249: * returns if the token is not known.
250: */
1.1 deraadt 251:
1.34 markus 252: static ServerOpCodes
1.25 markus 253: parse_token(const char *cp, const char *filename,
254: int linenum)
1.1 deraadt 255: {
1.25 markus 256: unsigned int i;
1.1 deraadt 257:
1.25 markus 258: for (i = 0; keywords[i].name; i++)
1.28 markus 259: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 260: return keywords[i].opcode;
261:
262: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
263: filename, linenum, cp);
264: return sBadOption;
1.1 deraadt 265: }
266:
1.29 markus 267: /*
268: * add listen address
269: */
1.34 markus 270: void
1.29 markus 271: add_listen_addr(ServerOptions *options, char *addr)
272: {
273: extern int IPv4or6;
274: struct addrinfo hints, *ai, *aitop;
275: char strport[NI_MAXSERV];
276: int gaierr;
277: int i;
278:
279: if (options->num_ports == 0)
280: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
281: for (i = 0; i < options->num_ports; i++) {
282: memset(&hints, 0, sizeof(hints));
283: hints.ai_family = IPv4or6;
284: hints.ai_socktype = SOCK_STREAM;
285: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
286: snprintf(strport, sizeof strport, "%d", options->ports[i]);
287: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
288: fatal("bad addr or host: %s (%s)\n",
289: addr ? addr : "<NULL>",
290: gai_strerror(gaierr));
291: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
292: ;
293: ai->ai_next = options->listen_addrs;
294: options->listen_addrs = aitop;
295: }
296: }
297:
1.1 deraadt 298: /* Reads the server configuration file. */
299:
1.34 markus 300: void
1.25 markus 301: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 302: {
1.25 markus 303: FILE *f;
304: char line[1024];
1.47 ho 305: char *cp, **charptr, *arg;
1.25 markus 306: int linenum, *intptr, value;
307: int bad_options = 0;
308: ServerOpCodes opcode;
1.43 jakob 309: int i;
1.25 markus 310:
311: f = fopen(filename, "r");
312: if (!f) {
313: perror(filename);
1.1 deraadt 314: exit(1);
1.25 markus 315: }
316: linenum = 0;
317: while (fgets(line, sizeof(line), f)) {
318: linenum++;
1.48 provos 319: cp = line;
320: arg = strdelim(&cp);
321: /* Ignore leading whitespace */
322: if (*arg == '\0')
1.49 ! markus 323: arg = strdelim(&cp);
1.48 provos 324: if (!*arg || *arg == '#')
1.25 markus 325: continue;
1.47 ho 326: opcode = parse_token(arg, filename, linenum);
1.25 markus 327: switch (opcode) {
328: case sBadOption:
329: bad_options++;
330: continue;
331: case sPort:
1.29 markus 332: /* ignore ports from configfile if cmdline specifies ports */
333: if (options->ports_from_cmdline)
334: continue;
335: if (options->listen_addrs != NULL)
336: fatal("%s line %d: ports must be specified before "
337: "ListenAdress.\n", filename, linenum);
338: if (options->num_ports >= MAX_PORTS)
339: fatal("%s line %d: too many ports.\n",
1.34 markus 340: filename, linenum);
1.48 provos 341: arg = strdelim(&cp);
1.47 ho 342: if (!arg || *arg == '\0')
1.29 markus 343: fatal("%s line %d: missing port number.\n",
344: filename, linenum);
1.47 ho 345: options->ports[options->num_ports++] = atoi(arg);
1.29 markus 346: break;
347:
348: case sServerKeyBits:
349: intptr = &options->server_key_bits;
1.25 markus 350: parse_int:
1.48 provos 351: arg = strdelim(&cp);
1.47 ho 352: if (!arg || *arg == '\0') {
1.25 markus 353: fprintf(stderr, "%s line %d: missing integer value.\n",
354: filename, linenum);
355: exit(1);
356: }
1.47 ho 357: value = atoi(arg);
1.25 markus 358: if (*intptr == -1)
359: *intptr = value;
360: break;
361:
362: case sLoginGraceTime:
363: intptr = &options->login_grace_time;
364: goto parse_int;
365:
366: case sKeyRegenerationTime:
367: intptr = &options->key_regeneration_time;
368: goto parse_int;
369:
370: case sListenAddress:
1.48 provos 371: arg = strdelim(&cp);
1.47 ho 372: if (!arg || *arg == '\0')
1.29 markus 373: fatal("%s line %d: missing inet addr.\n",
374: filename, linenum);
1.47 ho 375: add_listen_addr(options, arg);
1.25 markus 376: break;
377:
378: case sHostKeyFile:
1.37 markus 379: case sHostDSAKeyFile:
1.32 markus 380: charptr = (opcode == sHostKeyFile ) ?
1.37 markus 381: &options->host_key_file : &options->host_dsa_key_file;
1.42 markus 382: parse_filename:
1.48 provos 383: arg = strdelim(&cp);
1.47 ho 384: if (!arg || *arg == '\0') {
1.25 markus 385: fprintf(stderr, "%s line %d: missing file name.\n",
1.36 markus 386: filename, linenum);
387: exit(1);
388: }
389: if (*charptr == NULL)
1.47 ho 390: *charptr = tilde_expand_filename(arg, getuid());
1.36 markus 391: break;
392:
393: case sPidFile:
394: charptr = &options->pid_file;
1.42 markus 395: goto parse_filename;
1.25 markus 396:
397: case sRandomSeedFile:
398: fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
399: filename, linenum);
1.48 provos 400: arg = strdelim(&cp);
1.25 markus 401: break;
402:
403: case sPermitRootLogin:
404: intptr = &options->permit_root_login;
1.48 provos 405: arg = strdelim(&cp);
1.47 ho 406: if (!arg || *arg == '\0') {
1.25 markus 407: fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
408: filename, linenum);
409: exit(1);
410: }
1.47 ho 411: if (strcmp(arg, "without-password") == 0)
1.25 markus 412: value = 2;
1.47 ho 413: else if (strcmp(arg, "yes") == 0)
1.25 markus 414: value = 1;
1.47 ho 415: else if (strcmp(arg, "no") == 0)
1.25 markus 416: value = 0;
417: else {
418: fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
1.47 ho 419: filename, linenum, arg);
1.25 markus 420: exit(1);
421: }
422: if (*intptr == -1)
423: *intptr = value;
424: break;
425:
426: case sIgnoreRhosts:
427: intptr = &options->ignore_rhosts;
428: parse_flag:
1.48 provos 429: arg = strdelim(&cp);
1.47 ho 430: if (!arg || *arg == '\0') {
1.25 markus 431: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
432: filename, linenum);
433: exit(1);
434: }
1.47 ho 435: if (strcmp(arg, "yes") == 0)
1.25 markus 436: value = 1;
1.47 ho 437: else if (strcmp(arg, "no") == 0)
1.25 markus 438: value = 0;
439: else {
440: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 441: filename, linenum, arg);
1.25 markus 442: exit(1);
443: }
444: if (*intptr == -1)
445: *intptr = value;
446: break;
447:
448: case sIgnoreUserKnownHosts:
449: intptr = &options->ignore_user_known_hosts;
1.31 markus 450: goto parse_flag;
1.25 markus 451:
452: case sRhostsAuthentication:
453: intptr = &options->rhosts_authentication;
454: goto parse_flag;
455:
456: case sRhostsRSAAuthentication:
457: intptr = &options->rhosts_rsa_authentication;
458: goto parse_flag;
459:
460: case sRSAAuthentication:
461: intptr = &options->rsa_authentication;
1.39 markus 462: goto parse_flag;
463:
464: case sDSAAuthentication:
465: intptr = &options->dsa_authentication;
1.25 markus 466: goto parse_flag;
467:
1.1 deraadt 468: #ifdef KRB4
1.25 markus 469: case sKerberosAuthentication:
470: intptr = &options->kerberos_authentication;
471: goto parse_flag;
472:
473: case sKerberosOrLocalPasswd:
474: intptr = &options->kerberos_or_local_passwd;
475: goto parse_flag;
476:
477: case sKerberosTicketCleanup:
478: intptr = &options->kerberos_ticket_cleanup;
479: goto parse_flag;
1.1 deraadt 480: #endif
1.25 markus 481:
1.4 dugsong 482: #ifdef AFS
1.25 markus 483: case sKerberosTgtPassing:
484: intptr = &options->kerberos_tgt_passing;
485: goto parse_flag;
486:
487: case sAFSTokenPassing:
488: intptr = &options->afs_token_passing;
489: goto parse_flag;
490: #endif
491:
492: case sPasswordAuthentication:
493: intptr = &options->password_authentication;
494: goto parse_flag;
495:
496: case sCheckMail:
497: intptr = &options->check_mail;
498: goto parse_flag;
1.10 markus 499:
500: #ifdef SKEY
1.25 markus 501: case sSkeyAuthentication:
502: intptr = &options->skey_authentication;
503: goto parse_flag;
504: #endif
505:
506: case sPrintMotd:
507: intptr = &options->print_motd;
508: goto parse_flag;
509:
510: case sX11Forwarding:
511: intptr = &options->x11_forwarding;
512: goto parse_flag;
513:
514: case sX11DisplayOffset:
515: intptr = &options->x11_display_offset;
516: goto parse_int;
517:
1.42 markus 518: case sXAuthLocation:
519: charptr = &options->xauth_location;
520: goto parse_filename;
521:
1.25 markus 522: case sStrictModes:
523: intptr = &options->strict_modes;
524: goto parse_flag;
525:
526: case sKeepAlives:
527: intptr = &options->keepalives;
528: goto parse_flag;
529:
530: case sEmptyPasswd:
531: intptr = &options->permit_empty_passwd;
532: goto parse_flag;
533:
534: case sUseLogin:
535: intptr = &options->use_login;
1.38 markus 536: goto parse_flag;
537:
538: case sGatewayPorts:
539: intptr = &options->gateway_ports;
1.25 markus 540: goto parse_flag;
541:
542: case sLogFacility:
543: intptr = (int *) &options->log_facility;
1.48 provos 544: arg = strdelim(&cp);
1.47 ho 545: value = log_facility_number(arg);
1.25 markus 546: if (value == (SyslogFacility) - 1)
547: fatal("%.200s line %d: unsupported log facility '%s'\n",
1.47 ho 548: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 549: if (*intptr == -1)
550: *intptr = (SyslogFacility) value;
551: break;
552:
553: case sLogLevel:
554: intptr = (int *) &options->log_level;
1.48 provos 555: arg = strdelim(&cp);
1.47 ho 556: value = log_level_number(arg);
1.25 markus 557: if (value == (LogLevel) - 1)
558: fatal("%.200s line %d: unsupported log level '%s'\n",
1.47 ho 559: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 560: if (*intptr == -1)
561: *intptr = (LogLevel) value;
562: break;
563:
564: case sAllowUsers:
1.48 provos 565: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 566: if (options->num_allow_users >= MAX_ALLOW_USERS)
567: fatal("%s line %d: too many allow users.\n",
568: filename, linenum);
1.47 ho 569: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 570: }
571: break;
572:
573: case sDenyUsers:
1.48 provos 574: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 575: if (options->num_deny_users >= MAX_DENY_USERS)
576: fatal( "%s line %d: too many deny users.\n",
577: filename, linenum);
1.47 ho 578: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 579: }
580: break;
581:
582: case sAllowGroups:
1.48 provos 583: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 584: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
585: fatal("%s line %d: too many allow groups.\n",
586: filename, linenum);
1.47 ho 587: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 588: }
589: break;
590:
591: case sDenyGroups:
1.48 provos 592: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 593: if (options->num_deny_groups >= MAX_DENY_GROUPS)
594: fatal("%s line %d: too many deny groups.\n",
595: filename, linenum);
1.47 ho 596: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 597: }
1.33 markus 598: break;
599:
600: case sCiphers:
1.48 provos 601: arg = strdelim(&cp);
1.47 ho 602: if (!arg || *arg == '\0')
1.41 markus 603: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 604: if (!ciphers_valid(arg))
1.40 markus 605: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 606: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 607: if (options->ciphers == NULL)
1.47 ho 608: options->ciphers = xstrdup(arg);
1.33 markus 609: break;
610:
611: case sProtocol:
612: intptr = &options->protocol;
1.48 provos 613: arg = strdelim(&cp);
1.47 ho 614: if (!arg || *arg == '\0')
1.41 markus 615: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 616: value = proto_spec(arg);
1.33 markus 617: if (value == SSH_PROTO_UNKNOWN)
618: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 619: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 620: if (*intptr == SSH_PROTO_UNKNOWN)
621: *intptr = value;
1.43 jakob 622: break;
623:
624: case sSubsystem:
625: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
626: fatal("%s line %d: too many subsystems defined.",
627: filename, linenum);
628: }
1.48 provos 629: arg = strdelim(&cp);
1.47 ho 630: if (!arg || *arg == '\0')
1.43 jakob 631: fatal("%s line %d: Missing subsystem name.",
632: filename, linenum);
633: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 634: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 635: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 636: filename, linenum, arg);
637: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 638: arg = strdelim(&cp);
1.47 ho 639: if (!arg || *arg == '\0')
1.43 jakob 640: fatal("%s line %d: Missing subsystem command.",
641: filename, linenum);
1.47 ho 642: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 643: options->num_subsystems++;
1.25 markus 644: break;
1.46 markus 645:
646: case sMaxStartups:
647: intptr = &options->max_startups;
648: goto parse_int;
1.25 markus 649:
650: default:
651: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 652: filename, linenum, arg, opcode);
1.25 markus 653: exit(1);
1.13 markus 654: }
1.48 provos 655: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.47 ho 656: fprintf(stderr,
657: "%s line %d: garbage at end of line; \"%.200s\".\n",
658: filename, linenum, arg);
1.25 markus 659: exit(1);
1.13 markus 660: }
1.1 deraadt 661: }
1.25 markus 662: fclose(f);
663: if (bad_options > 0) {
664: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
665: filename, bad_options);
666: exit(1);
1.1 deraadt 667: }
668: }
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