Annotation of src/usr.bin/ssh/servconf.c, Revision 1.52
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"
1.52 ! markus 13: RCSID("$OpenBSD: servconf.c,v 1.51 2000/09/07 20:27:53 deraadt Exp $");
1.1 deraadt 14:
15: #include "ssh.h"
16: #include "servconf.h"
17: #include "xmalloc.h"
1.33 markus 18: #include "compat.h"
1.1 deraadt 19:
1.29 markus 20: /* add listen address */
21: void add_listen_addr(ServerOptions *options, char *addr);
22:
1.1 deraadt 23: /* Initializes the server options to their default values. */
24:
1.34 markus 25: void
1.25 markus 26: initialize_server_options(ServerOptions *options)
1.1 deraadt 27: {
1.25 markus 28: memset(options, 0, sizeof(*options));
1.29 markus 29: options->num_ports = 0;
30: options->ports_from_cmdline = 0;
31: options->listen_addrs = NULL;
1.25 markus 32: options->host_key_file = NULL;
1.37 markus 33: options->host_dsa_key_file = NULL;
1.36 markus 34: options->pid_file = NULL;
1.25 markus 35: options->server_key_bits = -1;
36: options->login_grace_time = -1;
37: options->key_regeneration_time = -1;
38: options->permit_root_login = -1;
39: options->ignore_rhosts = -1;
40: options->ignore_user_known_hosts = -1;
41: options->print_motd = -1;
42: options->check_mail = -1;
43: options->x11_forwarding = -1;
44: options->x11_display_offset = -1;
1.42 markus 45: options->xauth_location = NULL;
1.25 markus 46: options->strict_modes = -1;
47: options->keepalives = -1;
48: options->log_facility = (SyslogFacility) - 1;
49: options->log_level = (LogLevel) - 1;
50: options->rhosts_authentication = -1;
51: options->rhosts_rsa_authentication = -1;
52: options->rsa_authentication = -1;
1.39 markus 53: options->dsa_authentication = -1;
1.1 deraadt 54: #ifdef KRB4
1.25 markus 55: options->kerberos_authentication = -1;
56: options->kerberos_or_local_passwd = -1;
57: options->kerberos_ticket_cleanup = -1;
1.1 deraadt 58: #endif
1.4 dugsong 59: #ifdef AFS
1.25 markus 60: options->kerberos_tgt_passing = -1;
61: options->afs_token_passing = -1;
1.1 deraadt 62: #endif
1.25 markus 63: options->password_authentication = -1;
1.52 ! markus 64: options->kbd_interactive_authentication = -1;
1.10 markus 65: #ifdef SKEY
1.25 markus 66: options->skey_authentication = -1;
1.10 markus 67: #endif
1.25 markus 68: options->permit_empty_passwd = -1;
69: options->use_login = -1;
70: options->num_allow_users = 0;
71: options->num_deny_users = 0;
72: options->num_allow_groups = 0;
73: options->num_deny_groups = 0;
1.33 markus 74: options->ciphers = NULL;
75: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 76: options->gateway_ports = -1;
1.43 jakob 77: options->num_subsystems = 0;
1.50 markus 78: options->max_startups_begin = -1;
79: options->max_startups_rate = -1;
1.46 markus 80: options->max_startups = -1;
1.1 deraadt 81: }
82:
1.34 markus 83: void
1.25 markus 84: fill_default_server_options(ServerOptions *options)
1.1 deraadt 85: {
1.29 markus 86: if (options->num_ports == 0)
87: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
88: if (options->listen_addrs == NULL)
89: add_listen_addr(options, NULL);
1.25 markus 90: if (options->host_key_file == NULL)
91: options->host_key_file = HOST_KEY_FILE;
1.37 markus 92: if (options->host_dsa_key_file == NULL)
93: options->host_dsa_key_file = HOST_DSA_KEY_FILE;
1.36 markus 94: if (options->pid_file == NULL)
95: options->pid_file = SSH_DAEMON_PID_FILE;
1.25 markus 96: if (options->server_key_bits == -1)
97: options->server_key_bits = 768;
98: if (options->login_grace_time == -1)
99: options->login_grace_time = 600;
100: if (options->key_regeneration_time == -1)
101: options->key_regeneration_time = 3600;
102: if (options->permit_root_login == -1)
103: options->permit_root_login = 1; /* yes */
104: if (options->ignore_rhosts == -1)
1.30 markus 105: options->ignore_rhosts = 1;
1.25 markus 106: if (options->ignore_user_known_hosts == -1)
107: options->ignore_user_known_hosts = 0;
108: if (options->check_mail == -1)
109: options->check_mail = 0;
110: if (options->print_motd == -1)
111: options->print_motd = 1;
112: if (options->x11_forwarding == -1)
1.30 markus 113: options->x11_forwarding = 0;
1.25 markus 114: if (options->x11_display_offset == -1)
1.30 markus 115: options->x11_display_offset = 10;
1.42 markus 116: #ifdef XAUTH_PATH
117: if (options->xauth_location == NULL)
118: options->xauth_location = XAUTH_PATH;
119: #endif /* XAUTH_PATH */
1.25 markus 120: if (options->strict_modes == -1)
121: options->strict_modes = 1;
122: if (options->keepalives == -1)
123: options->keepalives = 1;
124: if (options->log_facility == (SyslogFacility) (-1))
125: options->log_facility = SYSLOG_FACILITY_AUTH;
126: if (options->log_level == (LogLevel) (-1))
127: options->log_level = SYSLOG_LEVEL_INFO;
128: if (options->rhosts_authentication == -1)
129: options->rhosts_authentication = 0;
130: if (options->rhosts_rsa_authentication == -1)
1.30 markus 131: options->rhosts_rsa_authentication = 0;
1.25 markus 132: if (options->rsa_authentication == -1)
133: options->rsa_authentication = 1;
1.39 markus 134: if (options->dsa_authentication == -1)
135: options->dsa_authentication = 1;
1.1 deraadt 136: #ifdef KRB4
1.25 markus 137: if (options->kerberos_authentication == -1)
138: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
139: if (options->kerberos_or_local_passwd == -1)
140: options->kerberos_or_local_passwd = 1;
141: if (options->kerberos_ticket_cleanup == -1)
142: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 143: #endif /* KRB4 */
144: #ifdef AFS
1.25 markus 145: if (options->kerberos_tgt_passing == -1)
146: options->kerberos_tgt_passing = 0;
147: if (options->afs_token_passing == -1)
148: options->afs_token_passing = k_hasafs();
1.4 dugsong 149: #endif /* AFS */
1.25 markus 150: if (options->password_authentication == -1)
151: options->password_authentication = 1;
1.52 ! markus 152: if (options->kbd_interactive_authentication == -1)
! 153: options->kbd_interactive_authentication = 0;
1.10 markus 154: #ifdef SKEY
1.25 markus 155: if (options->skey_authentication == -1)
156: options->skey_authentication = 1;
1.10 markus 157: #endif
1.25 markus 158: if (options->permit_empty_passwd == -1)
1.30 markus 159: options->permit_empty_passwd = 0;
1.25 markus 160: if (options->use_login == -1)
161: options->use_login = 0;
1.33 markus 162: if (options->protocol == SSH_PROTO_UNKNOWN)
1.35 markus 163: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
1.38 markus 164: if (options->gateway_ports == -1)
165: options->gateway_ports = 0;
1.46 markus 166: if (options->max_startups == -1)
167: options->max_startups = 10;
1.50 markus 168: if (options->max_startups_rate == -1)
169: options->max_startups_rate = 100; /* 100% */
170: if (options->max_startups_begin == -1)
171: options->max_startups_begin = options->max_startups;
1.1 deraadt 172: }
173:
174: /* Keyword tokens. */
1.25 markus 175: typedef enum {
176: sBadOption, /* == unknown option */
177: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
178: sPermitRootLogin, sLogFacility, sLogLevel,
179: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 180: #ifdef KRB4
1.25 markus 181: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 182: #endif
183: #ifdef AFS
1.25 markus 184: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 185: #endif
1.10 markus 186: #ifdef SKEY
1.25 markus 187: sSkeyAuthentication,
1.10 markus 188: #endif
1.52 ! markus 189: sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
1.25 markus 190: sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
191: sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
192: sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.38 markus 193: sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile,
1.46 markus 194: sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups
1.1 deraadt 195: } ServerOpCodes;
196:
197: /* Textual representation of the tokens. */
1.25 markus 198: static struct {
199: const char *name;
200: ServerOpCodes opcode;
201: } keywords[] = {
202: { "port", sPort },
203: { "hostkey", sHostKeyFile },
1.37 markus 204: { "hostdsakey", sHostDSAKeyFile },
1.36 markus 205: { "pidfile", sPidFile },
1.25 markus 206: { "serverkeybits", sServerKeyBits },
207: { "logingracetime", sLoginGraceTime },
208: { "keyregenerationinterval", sKeyRegenerationTime },
209: { "permitrootlogin", sPermitRootLogin },
210: { "syslogfacility", sLogFacility },
211: { "loglevel", sLogLevel },
212: { "rhostsauthentication", sRhostsAuthentication },
213: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
214: { "rsaauthentication", sRSAAuthentication },
1.39 markus 215: { "dsaauthentication", sDSAAuthentication },
1.1 deraadt 216: #ifdef KRB4
1.25 markus 217: { "kerberosauthentication", sKerberosAuthentication },
218: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
219: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 220: #endif
1.4 dugsong 221: #ifdef AFS
1.25 markus 222: { "kerberostgtpassing", sKerberosTgtPassing },
223: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 224: #endif
1.25 markus 225: { "passwordauthentication", sPasswordAuthentication },
1.52 ! markus 226: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
1.10 markus 227: #ifdef SKEY
1.25 markus 228: { "skeyauthentication", sSkeyAuthentication },
1.10 markus 229: #endif
1.25 markus 230: { "checkmail", sCheckMail },
231: { "listenaddress", sListenAddress },
232: { "printmotd", sPrintMotd },
233: { "ignorerhosts", sIgnoreRhosts },
234: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
235: { "x11forwarding", sX11Forwarding },
236: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 237: { "xauthlocation", sXAuthLocation },
1.25 markus 238: { "strictmodes", sStrictModes },
239: { "permitemptypasswords", sEmptyPasswd },
240: { "uselogin", sUseLogin },
241: { "randomseed", sRandomSeedFile },
242: { "keepalive", sKeepAlives },
243: { "allowusers", sAllowUsers },
244: { "denyusers", sDenyUsers },
245: { "allowgroups", sAllowGroups },
246: { "denygroups", sDenyGroups },
1.33 markus 247: { "ciphers", sCiphers },
248: { "protocol", sProtocol },
1.38 markus 249: { "gatewayports", sGatewayPorts },
1.43 jakob 250: { "subsystem", sSubsystem },
1.46 markus 251: { "maxstartups", sMaxStartups },
1.25 markus 252: { NULL, 0 }
1.1 deraadt 253: };
254:
1.27 markus 255: /*
256: * Returns the number of the token pointed to by cp of length len. Never
257: * returns if the token is not known.
258: */
1.1 deraadt 259:
1.34 markus 260: static ServerOpCodes
1.25 markus 261: parse_token(const char *cp, const char *filename,
262: int linenum)
1.1 deraadt 263: {
1.25 markus 264: unsigned int i;
1.1 deraadt 265:
1.25 markus 266: for (i = 0; keywords[i].name; i++)
1.28 markus 267: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 268: return keywords[i].opcode;
269:
270: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
271: filename, linenum, cp);
272: return sBadOption;
1.1 deraadt 273: }
274:
1.29 markus 275: /*
276: * add listen address
277: */
1.34 markus 278: void
1.29 markus 279: add_listen_addr(ServerOptions *options, char *addr)
280: {
281: extern int IPv4or6;
282: struct addrinfo hints, *ai, *aitop;
283: char strport[NI_MAXSERV];
284: int gaierr;
285: int i;
286:
287: if (options->num_ports == 0)
288: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
289: for (i = 0; i < options->num_ports; i++) {
290: memset(&hints, 0, sizeof(hints));
291: hints.ai_family = IPv4or6;
292: hints.ai_socktype = SOCK_STREAM;
293: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
294: snprintf(strport, sizeof strport, "%d", options->ports[i]);
295: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
296: fatal("bad addr or host: %s (%s)\n",
297: addr ? addr : "<NULL>",
298: gai_strerror(gaierr));
299: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
300: ;
301: ai->ai_next = options->listen_addrs;
302: options->listen_addrs = aitop;
303: }
304: }
305:
1.1 deraadt 306: /* Reads the server configuration file. */
307:
1.34 markus 308: void
1.25 markus 309: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 310: {
1.25 markus 311: FILE *f;
312: char line[1024];
1.47 ho 313: char *cp, **charptr, *arg;
1.25 markus 314: int linenum, *intptr, value;
315: int bad_options = 0;
316: ServerOpCodes opcode;
1.43 jakob 317: int i;
1.25 markus 318:
319: f = fopen(filename, "r");
320: if (!f) {
321: perror(filename);
1.1 deraadt 322: exit(1);
1.25 markus 323: }
324: linenum = 0;
325: while (fgets(line, sizeof(line), f)) {
326: linenum++;
1.48 provos 327: cp = line;
328: arg = strdelim(&cp);
329: /* Ignore leading whitespace */
330: if (*arg == '\0')
1.49 markus 331: arg = strdelim(&cp);
1.48 provos 332: if (!*arg || *arg == '#')
1.25 markus 333: continue;
1.47 ho 334: opcode = parse_token(arg, filename, linenum);
1.25 markus 335: switch (opcode) {
336: case sBadOption:
337: bad_options++;
338: continue;
339: case sPort:
1.29 markus 340: /* ignore ports from configfile if cmdline specifies ports */
341: if (options->ports_from_cmdline)
342: continue;
343: if (options->listen_addrs != NULL)
344: fatal("%s line %d: ports must be specified before "
345: "ListenAdress.\n", filename, linenum);
346: if (options->num_ports >= MAX_PORTS)
347: fatal("%s line %d: too many ports.\n",
1.34 markus 348: filename, linenum);
1.48 provos 349: arg = strdelim(&cp);
1.47 ho 350: if (!arg || *arg == '\0')
1.29 markus 351: fatal("%s line %d: missing port number.\n",
352: filename, linenum);
1.47 ho 353: options->ports[options->num_ports++] = atoi(arg);
1.29 markus 354: break;
355:
356: case sServerKeyBits:
357: intptr = &options->server_key_bits;
1.25 markus 358: parse_int:
1.48 provos 359: arg = strdelim(&cp);
1.47 ho 360: if (!arg || *arg == '\0') {
1.25 markus 361: fprintf(stderr, "%s line %d: missing integer value.\n",
362: filename, linenum);
363: exit(1);
364: }
1.47 ho 365: value = atoi(arg);
1.25 markus 366: if (*intptr == -1)
367: *intptr = value;
368: break;
369:
370: case sLoginGraceTime:
371: intptr = &options->login_grace_time;
372: goto parse_int;
373:
374: case sKeyRegenerationTime:
375: intptr = &options->key_regeneration_time;
376: goto parse_int;
377:
378: case sListenAddress:
1.48 provos 379: arg = strdelim(&cp);
1.47 ho 380: if (!arg || *arg == '\0')
1.29 markus 381: fatal("%s line %d: missing inet addr.\n",
382: filename, linenum);
1.47 ho 383: add_listen_addr(options, arg);
1.25 markus 384: break;
385:
386: case sHostKeyFile:
1.37 markus 387: case sHostDSAKeyFile:
1.32 markus 388: charptr = (opcode == sHostKeyFile ) ?
1.37 markus 389: &options->host_key_file : &options->host_dsa_key_file;
1.42 markus 390: parse_filename:
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 file name.\n",
1.36 markus 394: filename, linenum);
395: exit(1);
396: }
397: if (*charptr == NULL)
1.47 ho 398: *charptr = tilde_expand_filename(arg, getuid());
1.36 markus 399: break;
400:
401: case sPidFile:
402: charptr = &options->pid_file;
1.42 markus 403: goto parse_filename;
1.25 markus 404:
405: case sRandomSeedFile:
406: fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
407: filename, linenum);
1.48 provos 408: arg = strdelim(&cp);
1.25 markus 409: break;
410:
411: case sPermitRootLogin:
412: intptr = &options->permit_root_login;
1.48 provos 413: arg = strdelim(&cp);
1.47 ho 414: if (!arg || *arg == '\0') {
1.25 markus 415: fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
416: filename, linenum);
417: exit(1);
418: }
1.47 ho 419: if (strcmp(arg, "without-password") == 0)
1.25 markus 420: value = 2;
1.47 ho 421: else if (strcmp(arg, "yes") == 0)
1.25 markus 422: value = 1;
1.47 ho 423: else if (strcmp(arg, "no") == 0)
1.25 markus 424: value = 0;
425: else {
426: fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
1.47 ho 427: filename, linenum, arg);
1.25 markus 428: exit(1);
429: }
430: if (*intptr == -1)
431: *intptr = value;
432: break;
433:
434: case sIgnoreRhosts:
435: intptr = &options->ignore_rhosts;
436: parse_flag:
1.48 provos 437: arg = strdelim(&cp);
1.47 ho 438: if (!arg || *arg == '\0') {
1.25 markus 439: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
440: filename, linenum);
441: exit(1);
442: }
1.47 ho 443: if (strcmp(arg, "yes") == 0)
1.25 markus 444: value = 1;
1.47 ho 445: else if (strcmp(arg, "no") == 0)
1.25 markus 446: value = 0;
447: else {
448: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 449: filename, linenum, arg);
1.25 markus 450: exit(1);
451: }
452: if (*intptr == -1)
453: *intptr = value;
454: break;
455:
456: case sIgnoreUserKnownHosts:
457: intptr = &options->ignore_user_known_hosts;
1.31 markus 458: goto parse_flag;
1.25 markus 459:
460: case sRhostsAuthentication:
461: intptr = &options->rhosts_authentication;
462: goto parse_flag;
463:
464: case sRhostsRSAAuthentication:
465: intptr = &options->rhosts_rsa_authentication;
466: goto parse_flag;
467:
468: case sRSAAuthentication:
469: intptr = &options->rsa_authentication;
1.39 markus 470: goto parse_flag;
471:
472: case sDSAAuthentication:
473: intptr = &options->dsa_authentication;
1.25 markus 474: goto parse_flag;
475:
1.1 deraadt 476: #ifdef KRB4
1.25 markus 477: case sKerberosAuthentication:
478: intptr = &options->kerberos_authentication;
479: goto parse_flag;
480:
481: case sKerberosOrLocalPasswd:
482: intptr = &options->kerberos_or_local_passwd;
483: goto parse_flag;
484:
485: case sKerberosTicketCleanup:
486: intptr = &options->kerberos_ticket_cleanup;
487: goto parse_flag;
1.1 deraadt 488: #endif
1.25 markus 489:
1.4 dugsong 490: #ifdef AFS
1.25 markus 491: case sKerberosTgtPassing:
492: intptr = &options->kerberos_tgt_passing;
493: goto parse_flag;
494:
495: case sAFSTokenPassing:
496: intptr = &options->afs_token_passing;
497: goto parse_flag;
498: #endif
499:
500: case sPasswordAuthentication:
501: intptr = &options->password_authentication;
1.52 ! markus 502: goto parse_flag;
! 503:
! 504: case sKbdInteractiveAuthentication:
! 505: intptr = &options->kbd_interactive_authentication;
1.25 markus 506: goto parse_flag;
507:
508: case sCheckMail:
509: intptr = &options->check_mail;
510: goto parse_flag;
1.10 markus 511:
512: #ifdef SKEY
1.25 markus 513: case sSkeyAuthentication:
514: intptr = &options->skey_authentication;
515: goto parse_flag;
516: #endif
517:
518: case sPrintMotd:
519: intptr = &options->print_motd;
520: goto parse_flag;
521:
522: case sX11Forwarding:
523: intptr = &options->x11_forwarding;
524: goto parse_flag;
525:
526: case sX11DisplayOffset:
527: intptr = &options->x11_display_offset;
528: goto parse_int;
529:
1.42 markus 530: case sXAuthLocation:
531: charptr = &options->xauth_location;
532: goto parse_filename;
533:
1.25 markus 534: case sStrictModes:
535: intptr = &options->strict_modes;
536: goto parse_flag;
537:
538: case sKeepAlives:
539: intptr = &options->keepalives;
540: goto parse_flag;
541:
542: case sEmptyPasswd:
543: intptr = &options->permit_empty_passwd;
544: goto parse_flag;
545:
546: case sUseLogin:
547: intptr = &options->use_login;
1.38 markus 548: goto parse_flag;
549:
550: case sGatewayPorts:
551: intptr = &options->gateway_ports;
1.25 markus 552: goto parse_flag;
553:
554: case sLogFacility:
555: intptr = (int *) &options->log_facility;
1.48 provos 556: arg = strdelim(&cp);
1.47 ho 557: value = log_facility_number(arg);
1.25 markus 558: if (value == (SyslogFacility) - 1)
559: fatal("%.200s line %d: unsupported log facility '%s'\n",
1.47 ho 560: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 561: if (*intptr == -1)
562: *intptr = (SyslogFacility) value;
563: break;
564:
565: case sLogLevel:
566: intptr = (int *) &options->log_level;
1.48 provos 567: arg = strdelim(&cp);
1.47 ho 568: value = log_level_number(arg);
1.25 markus 569: if (value == (LogLevel) - 1)
570: fatal("%.200s line %d: unsupported log level '%s'\n",
1.47 ho 571: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 572: if (*intptr == -1)
573: *intptr = (LogLevel) value;
574: break;
575:
576: case sAllowUsers:
1.48 provos 577: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 578: if (options->num_allow_users >= MAX_ALLOW_USERS)
579: fatal("%s line %d: too many allow users.\n",
580: filename, linenum);
1.47 ho 581: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 582: }
583: break;
584:
585: case sDenyUsers:
1.48 provos 586: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 587: if (options->num_deny_users >= MAX_DENY_USERS)
588: fatal( "%s line %d: too many deny users.\n",
589: filename, linenum);
1.47 ho 590: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 591: }
592: break;
593:
594: case sAllowGroups:
1.48 provos 595: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 596: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
597: fatal("%s line %d: too many allow groups.\n",
598: filename, linenum);
1.47 ho 599: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 600: }
601: break;
602:
603: case sDenyGroups:
1.48 provos 604: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 605: if (options->num_deny_groups >= MAX_DENY_GROUPS)
606: fatal("%s line %d: too many deny groups.\n",
607: filename, linenum);
1.47 ho 608: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 609: }
1.33 markus 610: break;
611:
612: case sCiphers:
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: if (!ciphers_valid(arg))
1.40 markus 617: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 618: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 619: if (options->ciphers == NULL)
1.47 ho 620: options->ciphers = xstrdup(arg);
1.33 markus 621: break;
622:
623: case sProtocol:
624: intptr = &options->protocol;
1.48 provos 625: arg = strdelim(&cp);
1.47 ho 626: if (!arg || *arg == '\0')
1.41 markus 627: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 628: value = proto_spec(arg);
1.33 markus 629: if (value == SSH_PROTO_UNKNOWN)
630: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 631: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 632: if (*intptr == SSH_PROTO_UNKNOWN)
633: *intptr = value;
1.43 jakob 634: break;
635:
636: case sSubsystem:
637: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
638: fatal("%s line %d: too many subsystems defined.",
639: filename, linenum);
640: }
1.48 provos 641: arg = strdelim(&cp);
1.47 ho 642: if (!arg || *arg == '\0')
1.43 jakob 643: fatal("%s line %d: Missing subsystem name.",
644: filename, linenum);
645: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 646: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 647: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 648: filename, linenum, arg);
649: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 650: arg = strdelim(&cp);
1.47 ho 651: if (!arg || *arg == '\0')
1.43 jakob 652: fatal("%s line %d: Missing subsystem command.",
653: filename, linenum);
1.47 ho 654: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 655: options->num_subsystems++;
1.25 markus 656: break;
1.46 markus 657:
658: case sMaxStartups:
1.50 markus 659: arg = strdelim(&cp);
660: if (!arg || *arg == '\0')
661: fatal("%s line %d: Missing MaxStartups spec.",
662: filename, linenum);
663: if (sscanf(arg, "%d:%d:%d",
664: &options->max_startups_begin,
665: &options->max_startups_rate,
666: &options->max_startups) == 3) {
667: if (options->max_startups_begin >
668: options->max_startups ||
669: options->max_startups_rate > 100 ||
670: options->max_startups_rate < 1)
671: fatal("%s line %d: Illegal MaxStartups spec.",
672: filename, linenum);
673: break;
674: }
1.46 markus 675: intptr = &options->max_startups;
676: goto parse_int;
1.25 markus 677:
678: default:
679: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 680: filename, linenum, arg, opcode);
1.25 markus 681: exit(1);
1.13 markus 682: }
1.48 provos 683: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.47 ho 684: fprintf(stderr,
685: "%s line %d: garbage at end of line; \"%.200s\".\n",
686: filename, linenum, arg);
1.25 markus 687: exit(1);
1.13 markus 688: }
1.1 deraadt 689: }
1.25 markus 690: fclose(f);
691: if (bad_options > 0) {
692: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
693: filename, bad_options);
694: exit(1);
1.1 deraadt 695: }
696: }
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