Annotation of src/usr.bin/ssh/servconf.c, Revision 1.53
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"
1.53 ! markus 13: RCSID("$OpenBSD: servconf.c,v 1.52 2000/10/11 20:14:39 markus 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;
1.53 ! markus 70: options->allow_tcp_forwarding = -1;
1.25 markus 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;
1.50 markus 79: options->max_startups_begin = -1;
80: options->max_startups_rate = -1;
1.46 markus 81: options->max_startups = -1;
1.1 deraadt 82: }
83:
1.34 markus 84: void
1.25 markus 85: fill_default_server_options(ServerOptions *options)
1.1 deraadt 86: {
1.29 markus 87: if (options->num_ports == 0)
88: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
89: if (options->listen_addrs == NULL)
90: add_listen_addr(options, NULL);
1.25 markus 91: if (options->host_key_file == NULL)
92: options->host_key_file = HOST_KEY_FILE;
1.37 markus 93: if (options->host_dsa_key_file == NULL)
94: options->host_dsa_key_file = HOST_DSA_KEY_FILE;
1.36 markus 95: if (options->pid_file == NULL)
96: options->pid_file = SSH_DAEMON_PID_FILE;
1.25 markus 97: if (options->server_key_bits == -1)
98: options->server_key_bits = 768;
99: if (options->login_grace_time == -1)
100: options->login_grace_time = 600;
101: if (options->key_regeneration_time == -1)
102: options->key_regeneration_time = 3600;
103: if (options->permit_root_login == -1)
104: options->permit_root_login = 1; /* yes */
105: if (options->ignore_rhosts == -1)
1.30 markus 106: options->ignore_rhosts = 1;
1.25 markus 107: if (options->ignore_user_known_hosts == -1)
108: options->ignore_user_known_hosts = 0;
109: if (options->check_mail == -1)
110: options->check_mail = 0;
111: if (options->print_motd == -1)
112: options->print_motd = 1;
113: if (options->x11_forwarding == -1)
1.30 markus 114: options->x11_forwarding = 0;
1.25 markus 115: if (options->x11_display_offset == -1)
1.30 markus 116: options->x11_display_offset = 10;
1.42 markus 117: #ifdef XAUTH_PATH
118: if (options->xauth_location == NULL)
119: options->xauth_location = XAUTH_PATH;
120: #endif /* XAUTH_PATH */
1.25 markus 121: if (options->strict_modes == -1)
122: options->strict_modes = 1;
123: if (options->keepalives == -1)
124: options->keepalives = 1;
125: if (options->log_facility == (SyslogFacility) (-1))
126: options->log_facility = SYSLOG_FACILITY_AUTH;
127: if (options->log_level == (LogLevel) (-1))
128: options->log_level = SYSLOG_LEVEL_INFO;
129: if (options->rhosts_authentication == -1)
130: options->rhosts_authentication = 0;
131: if (options->rhosts_rsa_authentication == -1)
1.30 markus 132: options->rhosts_rsa_authentication = 0;
1.25 markus 133: if (options->rsa_authentication == -1)
134: options->rsa_authentication = 1;
1.39 markus 135: if (options->dsa_authentication == -1)
136: options->dsa_authentication = 1;
1.1 deraadt 137: #ifdef KRB4
1.25 markus 138: if (options->kerberos_authentication == -1)
139: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
140: if (options->kerberos_or_local_passwd == -1)
141: options->kerberos_or_local_passwd = 1;
142: if (options->kerberos_ticket_cleanup == -1)
143: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 144: #endif /* KRB4 */
145: #ifdef AFS
1.25 markus 146: if (options->kerberos_tgt_passing == -1)
147: options->kerberos_tgt_passing = 0;
148: if (options->afs_token_passing == -1)
149: options->afs_token_passing = k_hasafs();
1.4 dugsong 150: #endif /* AFS */
1.25 markus 151: if (options->password_authentication == -1)
152: options->password_authentication = 1;
1.52 markus 153: if (options->kbd_interactive_authentication == -1)
154: options->kbd_interactive_authentication = 0;
1.10 markus 155: #ifdef SKEY
1.25 markus 156: if (options->skey_authentication == -1)
157: options->skey_authentication = 1;
1.10 markus 158: #endif
1.25 markus 159: if (options->permit_empty_passwd == -1)
1.30 markus 160: options->permit_empty_passwd = 0;
1.25 markus 161: if (options->use_login == -1)
162: options->use_login = 0;
1.53 ! markus 163: if (options->allow_tcp_forwarding == -1)
! 164: options->allow_tcp_forwarding = 1;
1.33 markus 165: if (options->protocol == SSH_PROTO_UNKNOWN)
1.35 markus 166: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
1.38 markus 167: if (options->gateway_ports == -1)
168: options->gateway_ports = 0;
1.46 markus 169: if (options->max_startups == -1)
170: options->max_startups = 10;
1.50 markus 171: if (options->max_startups_rate == -1)
172: options->max_startups_rate = 100; /* 100% */
173: if (options->max_startups_begin == -1)
174: options->max_startups_begin = options->max_startups;
1.1 deraadt 175: }
176:
177: /* Keyword tokens. */
1.25 markus 178: typedef enum {
179: sBadOption, /* == unknown option */
180: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
181: sPermitRootLogin, sLogFacility, sLogLevel,
182: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 183: #ifdef KRB4
1.25 markus 184: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 185: #endif
186: #ifdef AFS
1.25 markus 187: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 188: #endif
1.10 markus 189: #ifdef SKEY
1.25 markus 190: sSkeyAuthentication,
1.10 markus 191: #endif
1.52 markus 192: sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
1.25 markus 193: sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
194: sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
1.53 ! markus 195: sUseLogin, sAllowTcpForwarding,
! 196: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.38 markus 197: sIgnoreUserKnownHosts, sHostDSAKeyFile, sCiphers, sProtocol, sPidFile,
1.46 markus 198: sGatewayPorts, sDSAAuthentication, sXAuthLocation, sSubsystem, sMaxStartups
1.1 deraadt 199: } ServerOpCodes;
200:
201: /* Textual representation of the tokens. */
1.25 markus 202: static struct {
203: const char *name;
204: ServerOpCodes opcode;
205: } keywords[] = {
206: { "port", sPort },
207: { "hostkey", sHostKeyFile },
1.37 markus 208: { "hostdsakey", sHostDSAKeyFile },
1.36 markus 209: { "pidfile", sPidFile },
1.25 markus 210: { "serverkeybits", sServerKeyBits },
211: { "logingracetime", sLoginGraceTime },
212: { "keyregenerationinterval", sKeyRegenerationTime },
213: { "permitrootlogin", sPermitRootLogin },
214: { "syslogfacility", sLogFacility },
215: { "loglevel", sLogLevel },
216: { "rhostsauthentication", sRhostsAuthentication },
217: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
218: { "rsaauthentication", sRSAAuthentication },
1.39 markus 219: { "dsaauthentication", sDSAAuthentication },
1.1 deraadt 220: #ifdef KRB4
1.25 markus 221: { "kerberosauthentication", sKerberosAuthentication },
222: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
223: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 224: #endif
1.4 dugsong 225: #ifdef AFS
1.25 markus 226: { "kerberostgtpassing", sKerberosTgtPassing },
227: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 228: #endif
1.25 markus 229: { "passwordauthentication", sPasswordAuthentication },
1.52 markus 230: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
1.10 markus 231: #ifdef SKEY
1.25 markus 232: { "skeyauthentication", sSkeyAuthentication },
1.10 markus 233: #endif
1.25 markus 234: { "checkmail", sCheckMail },
235: { "listenaddress", sListenAddress },
236: { "printmotd", sPrintMotd },
237: { "ignorerhosts", sIgnoreRhosts },
238: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
239: { "x11forwarding", sX11Forwarding },
240: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 241: { "xauthlocation", sXAuthLocation },
1.25 markus 242: { "strictmodes", sStrictModes },
243: { "permitemptypasswords", sEmptyPasswd },
244: { "uselogin", sUseLogin },
245: { "randomseed", sRandomSeedFile },
246: { "keepalive", sKeepAlives },
1.53 ! markus 247: { "allowtcpforwarding", sAllowTcpForwarding },
1.25 markus 248: { "allowusers", sAllowUsers },
249: { "denyusers", sDenyUsers },
250: { "allowgroups", sAllowGroups },
251: { "denygroups", sDenyGroups },
1.33 markus 252: { "ciphers", sCiphers },
253: { "protocol", sProtocol },
1.38 markus 254: { "gatewayports", sGatewayPorts },
1.43 jakob 255: { "subsystem", sSubsystem },
1.46 markus 256: { "maxstartups", sMaxStartups },
1.25 markus 257: { NULL, 0 }
1.1 deraadt 258: };
259:
1.27 markus 260: /*
261: * Returns the number of the token pointed to by cp of length len. Never
262: * returns if the token is not known.
263: */
1.1 deraadt 264:
1.34 markus 265: static ServerOpCodes
1.25 markus 266: parse_token(const char *cp, const char *filename,
267: int linenum)
1.1 deraadt 268: {
1.25 markus 269: unsigned int i;
1.1 deraadt 270:
1.25 markus 271: for (i = 0; keywords[i].name; i++)
1.28 markus 272: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 273: return keywords[i].opcode;
274:
275: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
276: filename, linenum, cp);
277: return sBadOption;
1.1 deraadt 278: }
279:
1.29 markus 280: /*
281: * add listen address
282: */
1.34 markus 283: void
1.29 markus 284: add_listen_addr(ServerOptions *options, char *addr)
285: {
286: extern int IPv4or6;
287: struct addrinfo hints, *ai, *aitop;
288: char strport[NI_MAXSERV];
289: int gaierr;
290: int i;
291:
292: if (options->num_ports == 0)
293: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
294: for (i = 0; i < options->num_ports; i++) {
295: memset(&hints, 0, sizeof(hints));
296: hints.ai_family = IPv4or6;
297: hints.ai_socktype = SOCK_STREAM;
298: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
299: snprintf(strport, sizeof strport, "%d", options->ports[i]);
300: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
301: fatal("bad addr or host: %s (%s)\n",
302: addr ? addr : "<NULL>",
303: gai_strerror(gaierr));
304: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
305: ;
306: ai->ai_next = options->listen_addrs;
307: options->listen_addrs = aitop;
308: }
309: }
310:
1.1 deraadt 311: /* Reads the server configuration file. */
312:
1.34 markus 313: void
1.25 markus 314: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 315: {
1.25 markus 316: FILE *f;
317: char line[1024];
1.47 ho 318: char *cp, **charptr, *arg;
1.25 markus 319: int linenum, *intptr, value;
320: int bad_options = 0;
321: ServerOpCodes opcode;
1.43 jakob 322: int i;
1.25 markus 323:
324: f = fopen(filename, "r");
325: if (!f) {
326: perror(filename);
1.1 deraadt 327: exit(1);
1.25 markus 328: }
329: linenum = 0;
330: while (fgets(line, sizeof(line), f)) {
331: linenum++;
1.48 provos 332: cp = line;
333: arg = strdelim(&cp);
334: /* Ignore leading whitespace */
335: if (*arg == '\0')
1.49 markus 336: arg = strdelim(&cp);
1.48 provos 337: if (!*arg || *arg == '#')
1.25 markus 338: continue;
1.47 ho 339: opcode = parse_token(arg, filename, linenum);
1.25 markus 340: switch (opcode) {
341: case sBadOption:
342: bad_options++;
343: continue;
344: case sPort:
1.29 markus 345: /* ignore ports from configfile if cmdline specifies ports */
346: if (options->ports_from_cmdline)
347: continue;
348: if (options->listen_addrs != NULL)
349: fatal("%s line %d: ports must be specified before "
350: "ListenAdress.\n", filename, linenum);
351: if (options->num_ports >= MAX_PORTS)
352: fatal("%s line %d: too many ports.\n",
1.34 markus 353: filename, linenum);
1.48 provos 354: arg = strdelim(&cp);
1.47 ho 355: if (!arg || *arg == '\0')
1.29 markus 356: fatal("%s line %d: missing port number.\n",
357: filename, linenum);
1.47 ho 358: options->ports[options->num_ports++] = atoi(arg);
1.29 markus 359: break;
360:
361: case sServerKeyBits:
362: intptr = &options->server_key_bits;
1.25 markus 363: parse_int:
1.48 provos 364: arg = strdelim(&cp);
1.47 ho 365: if (!arg || *arg == '\0') {
1.25 markus 366: fprintf(stderr, "%s line %d: missing integer value.\n",
367: filename, linenum);
368: exit(1);
369: }
1.47 ho 370: value = atoi(arg);
1.25 markus 371: if (*intptr == -1)
372: *intptr = value;
373: break;
374:
375: case sLoginGraceTime:
376: intptr = &options->login_grace_time;
377: goto parse_int;
378:
379: case sKeyRegenerationTime:
380: intptr = &options->key_regeneration_time;
381: goto parse_int;
382:
383: case sListenAddress:
1.48 provos 384: arg = strdelim(&cp);
1.47 ho 385: if (!arg || *arg == '\0')
1.29 markus 386: fatal("%s line %d: missing inet addr.\n",
387: filename, linenum);
1.47 ho 388: add_listen_addr(options, arg);
1.25 markus 389: break;
390:
391: case sHostKeyFile:
1.37 markus 392: case sHostDSAKeyFile:
1.32 markus 393: charptr = (opcode == sHostKeyFile ) ?
1.37 markus 394: &options->host_key_file : &options->host_dsa_key_file;
1.42 markus 395: parse_filename:
1.48 provos 396: arg = strdelim(&cp);
1.47 ho 397: if (!arg || *arg == '\0') {
1.25 markus 398: fprintf(stderr, "%s line %d: missing file name.\n",
1.36 markus 399: filename, linenum);
400: exit(1);
401: }
402: if (*charptr == NULL)
1.47 ho 403: *charptr = tilde_expand_filename(arg, getuid());
1.36 markus 404: break;
405:
406: case sPidFile:
407: charptr = &options->pid_file;
1.42 markus 408: goto parse_filename;
1.25 markus 409:
410: case sRandomSeedFile:
411: fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
412: filename, linenum);
1.48 provos 413: arg = strdelim(&cp);
1.25 markus 414: break;
415:
416: case sPermitRootLogin:
417: intptr = &options->permit_root_login;
1.48 provos 418: arg = strdelim(&cp);
1.47 ho 419: if (!arg || *arg == '\0') {
1.25 markus 420: fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
421: filename, linenum);
422: exit(1);
423: }
1.47 ho 424: if (strcmp(arg, "without-password") == 0)
1.25 markus 425: value = 2;
1.47 ho 426: else if (strcmp(arg, "yes") == 0)
1.25 markus 427: value = 1;
1.47 ho 428: else if (strcmp(arg, "no") == 0)
1.25 markus 429: value = 0;
430: else {
431: fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
1.47 ho 432: filename, linenum, arg);
1.25 markus 433: exit(1);
434: }
435: if (*intptr == -1)
436: *intptr = value;
437: break;
438:
439: case sIgnoreRhosts:
440: intptr = &options->ignore_rhosts;
441: parse_flag:
1.48 provos 442: arg = strdelim(&cp);
1.47 ho 443: if (!arg || *arg == '\0') {
1.25 markus 444: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
445: filename, linenum);
446: exit(1);
447: }
1.47 ho 448: if (strcmp(arg, "yes") == 0)
1.25 markus 449: value = 1;
1.47 ho 450: else if (strcmp(arg, "no") == 0)
1.25 markus 451: value = 0;
452: else {
453: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 454: filename, linenum, arg);
1.25 markus 455: exit(1);
456: }
457: if (*intptr == -1)
458: *intptr = value;
459: break;
460:
461: case sIgnoreUserKnownHosts:
462: intptr = &options->ignore_user_known_hosts;
1.31 markus 463: goto parse_flag;
1.25 markus 464:
465: case sRhostsAuthentication:
466: intptr = &options->rhosts_authentication;
467: goto parse_flag;
468:
469: case sRhostsRSAAuthentication:
470: intptr = &options->rhosts_rsa_authentication;
471: goto parse_flag;
472:
473: case sRSAAuthentication:
474: intptr = &options->rsa_authentication;
1.39 markus 475: goto parse_flag;
476:
477: case sDSAAuthentication:
478: intptr = &options->dsa_authentication;
1.25 markus 479: goto parse_flag;
480:
1.1 deraadt 481: #ifdef KRB4
1.25 markus 482: case sKerberosAuthentication:
483: intptr = &options->kerberos_authentication;
484: goto parse_flag;
485:
486: case sKerberosOrLocalPasswd:
487: intptr = &options->kerberos_or_local_passwd;
488: goto parse_flag;
489:
490: case sKerberosTicketCleanup:
491: intptr = &options->kerberos_ticket_cleanup;
492: goto parse_flag;
1.1 deraadt 493: #endif
1.25 markus 494:
1.4 dugsong 495: #ifdef AFS
1.25 markus 496: case sKerberosTgtPassing:
497: intptr = &options->kerberos_tgt_passing;
498: goto parse_flag;
499:
500: case sAFSTokenPassing:
501: intptr = &options->afs_token_passing;
502: goto parse_flag;
503: #endif
504:
505: case sPasswordAuthentication:
506: intptr = &options->password_authentication;
1.52 markus 507: goto parse_flag;
508:
509: case sKbdInteractiveAuthentication:
510: intptr = &options->kbd_interactive_authentication;
1.25 markus 511: goto parse_flag;
512:
513: case sCheckMail:
514: intptr = &options->check_mail;
515: goto parse_flag;
1.10 markus 516:
517: #ifdef SKEY
1.25 markus 518: case sSkeyAuthentication:
519: intptr = &options->skey_authentication;
520: goto parse_flag;
521: #endif
522:
523: case sPrintMotd:
524: intptr = &options->print_motd;
525: goto parse_flag;
526:
527: case sX11Forwarding:
528: intptr = &options->x11_forwarding;
529: goto parse_flag;
530:
531: case sX11DisplayOffset:
532: intptr = &options->x11_display_offset;
533: goto parse_int;
534:
1.42 markus 535: case sXAuthLocation:
536: charptr = &options->xauth_location;
537: goto parse_filename;
538:
1.25 markus 539: case sStrictModes:
540: intptr = &options->strict_modes;
541: goto parse_flag;
542:
543: case sKeepAlives:
544: intptr = &options->keepalives;
545: goto parse_flag;
546:
547: case sEmptyPasswd:
548: intptr = &options->permit_empty_passwd;
549: goto parse_flag;
550:
551: case sUseLogin:
552: intptr = &options->use_login;
1.38 markus 553: goto parse_flag;
554:
555: case sGatewayPorts:
556: intptr = &options->gateway_ports;
1.25 markus 557: goto parse_flag;
558:
559: case sLogFacility:
560: intptr = (int *) &options->log_facility;
1.48 provos 561: arg = strdelim(&cp);
1.47 ho 562: value = log_facility_number(arg);
1.25 markus 563: if (value == (SyslogFacility) - 1)
564: fatal("%.200s line %d: unsupported log facility '%s'\n",
1.47 ho 565: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 566: if (*intptr == -1)
567: *intptr = (SyslogFacility) value;
568: break;
569:
570: case sLogLevel:
571: intptr = (int *) &options->log_level;
1.48 provos 572: arg = strdelim(&cp);
1.47 ho 573: value = log_level_number(arg);
1.25 markus 574: if (value == (LogLevel) - 1)
575: fatal("%.200s line %d: unsupported log level '%s'\n",
1.47 ho 576: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 577: if (*intptr == -1)
578: *intptr = (LogLevel) value;
579: break;
1.53 ! markus 580:
! 581: case sAllowTcpForwarding:
! 582: intptr = &options->allow_tcp_forwarding;
! 583: goto parse_flag;
1.25 markus 584:
585: case sAllowUsers:
1.48 provos 586: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 587: if (options->num_allow_users >= MAX_ALLOW_USERS)
588: fatal("%s line %d: too many allow users.\n",
589: filename, linenum);
1.47 ho 590: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 591: }
592: break;
593:
594: case sDenyUsers:
1.48 provos 595: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 596: if (options->num_deny_users >= MAX_DENY_USERS)
597: fatal( "%s line %d: too many deny users.\n",
598: filename, linenum);
1.47 ho 599: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 600: }
601: break;
602:
603: case sAllowGroups:
1.48 provos 604: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 605: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
606: fatal("%s line %d: too many allow groups.\n",
607: filename, linenum);
1.47 ho 608: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 609: }
610: break;
611:
612: case sDenyGroups:
1.48 provos 613: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 614: if (options->num_deny_groups >= MAX_DENY_GROUPS)
615: fatal("%s line %d: too many deny groups.\n",
616: filename, linenum);
1.47 ho 617: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 618: }
1.33 markus 619: break;
620:
621: case sCiphers:
1.48 provos 622: arg = strdelim(&cp);
1.47 ho 623: if (!arg || *arg == '\0')
1.41 markus 624: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 625: if (!ciphers_valid(arg))
1.40 markus 626: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 627: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 628: if (options->ciphers == NULL)
1.47 ho 629: options->ciphers = xstrdup(arg);
1.33 markus 630: break;
631:
632: case sProtocol:
633: intptr = &options->protocol;
1.48 provos 634: arg = strdelim(&cp);
1.47 ho 635: if (!arg || *arg == '\0')
1.41 markus 636: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 637: value = proto_spec(arg);
1.33 markus 638: if (value == SSH_PROTO_UNKNOWN)
639: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 640: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 641: if (*intptr == SSH_PROTO_UNKNOWN)
642: *intptr = value;
1.43 jakob 643: break;
644:
645: case sSubsystem:
646: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
647: fatal("%s line %d: too many subsystems defined.",
648: filename, linenum);
649: }
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 name.",
653: filename, linenum);
654: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 655: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 656: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 657: filename, linenum, arg);
658: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 659: arg = strdelim(&cp);
1.47 ho 660: if (!arg || *arg == '\0')
1.43 jakob 661: fatal("%s line %d: Missing subsystem command.",
662: filename, linenum);
1.47 ho 663: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 664: options->num_subsystems++;
1.25 markus 665: break;
1.46 markus 666:
667: case sMaxStartups:
1.50 markus 668: arg = strdelim(&cp);
669: if (!arg || *arg == '\0')
670: fatal("%s line %d: Missing MaxStartups spec.",
671: filename, linenum);
672: if (sscanf(arg, "%d:%d:%d",
673: &options->max_startups_begin,
674: &options->max_startups_rate,
675: &options->max_startups) == 3) {
676: if (options->max_startups_begin >
677: options->max_startups ||
678: options->max_startups_rate > 100 ||
679: options->max_startups_rate < 1)
680: fatal("%s line %d: Illegal MaxStartups spec.",
681: filename, linenum);
682: break;
683: }
1.46 markus 684: intptr = &options->max_startups;
685: goto parse_int;
1.25 markus 686:
687: default:
688: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 689: filename, linenum, arg, opcode);
1.25 markus 690: exit(1);
1.13 markus 691: }
1.48 provos 692: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.47 ho 693: fprintf(stderr,
694: "%s line %d: garbage at end of line; \"%.200s\".\n",
695: filename, linenum, arg);
1.25 markus 696: exit(1);
1.13 markus 697: }
1.1 deraadt 698: }
1.25 markus 699: fclose(f);
700: if (bad_options > 0) {
701: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
702: filename, bad_options);
703: exit(1);
1.1 deraadt 704: }
705: }
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