Annotation of src/usr.bin/ssh/servconf.c, Revision 1.59
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"
1.59 ! markus 13: RCSID("$OpenBSD: servconf.c,v 1.58 2001/01/18 16:20:22 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;
1.54 markus 32: options->num_host_key_files = 0;
1.36 markus 33: options->pid_file = NULL;
1.25 markus 34: options->server_key_bits = -1;
35: options->login_grace_time = -1;
36: options->key_regeneration_time = -1;
37: options->permit_root_login = -1;
38: options->ignore_rhosts = -1;
39: options->ignore_user_known_hosts = -1;
40: options->print_motd = -1;
41: options->check_mail = -1;
42: options->x11_forwarding = -1;
43: options->x11_display_offset = -1;
1.42 markus 44: options->xauth_location = NULL;
1.25 markus 45: options->strict_modes = -1;
46: options->keepalives = -1;
47: options->log_facility = (SyslogFacility) - 1;
48: options->log_level = (LogLevel) - 1;
49: options->rhosts_authentication = -1;
50: options->rhosts_rsa_authentication = -1;
51: options->rsa_authentication = -1;
1.54 markus 52: options->pubkey_authentication = -1;
1.1 deraadt 53: #ifdef KRB4
1.25 markus 54: options->kerberos_authentication = -1;
55: options->kerberos_or_local_passwd = -1;
56: options->kerberos_ticket_cleanup = -1;
1.1 deraadt 57: #endif
1.4 dugsong 58: #ifdef AFS
1.25 markus 59: options->kerberos_tgt_passing = -1;
60: options->afs_token_passing = -1;
1.1 deraadt 61: #endif
1.25 markus 62: options->password_authentication = -1;
1.52 markus 63: options->kbd_interactive_authentication = -1;
1.25 markus 64: options->skey_authentication = -1;
65: options->permit_empty_passwd = -1;
66: options->use_login = -1;
1.53 markus 67: options->allow_tcp_forwarding = -1;
1.25 markus 68: options->num_allow_users = 0;
69: options->num_deny_users = 0;
70: options->num_allow_groups = 0;
71: options->num_deny_groups = 0;
1.33 markus 72: options->ciphers = NULL;
73: options->protocol = SSH_PROTO_UNKNOWN;
1.38 markus 74: options->gateway_ports = -1;
1.43 jakob 75: options->num_subsystems = 0;
1.50 markus 76: options->max_startups_begin = -1;
77: options->max_startups_rate = -1;
1.46 markus 78: options->max_startups = -1;
1.57 markus 79: options->banner = NULL;
1.1 deraadt 80: }
81:
1.34 markus 82: void
1.25 markus 83: fill_default_server_options(ServerOptions *options)
1.1 deraadt 84: {
1.54 markus 85: if (options->protocol == SSH_PROTO_UNKNOWN)
86: options->protocol = SSH_PROTO_1|SSH_PROTO_2;
87: if (options->num_host_key_files == 0) {
88: /* fill default hostkeys for protocols */
89: if (options->protocol & SSH_PROTO_1)
90: options->host_key_files[options->num_host_key_files++] = HOST_KEY_FILE;
91: if (options->protocol & SSH_PROTO_2)
92: options->host_key_files[options->num_host_key_files++] = HOST_DSA_KEY_FILE;
93: }
1.29 markus 94: if (options->num_ports == 0)
95: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
96: if (options->listen_addrs == NULL)
97: add_listen_addr(options, NULL);
1.36 markus 98: if (options->pid_file == NULL)
99: options->pid_file = SSH_DAEMON_PID_FILE;
1.25 markus 100: if (options->server_key_bits == -1)
101: options->server_key_bits = 768;
102: if (options->login_grace_time == -1)
103: options->login_grace_time = 600;
104: if (options->key_regeneration_time == -1)
105: options->key_regeneration_time = 3600;
106: if (options->permit_root_login == -1)
107: options->permit_root_login = 1; /* yes */
108: if (options->ignore_rhosts == -1)
1.30 markus 109: options->ignore_rhosts = 1;
1.25 markus 110: if (options->ignore_user_known_hosts == -1)
111: options->ignore_user_known_hosts = 0;
112: if (options->check_mail == -1)
113: options->check_mail = 0;
114: if (options->print_motd == -1)
115: options->print_motd = 1;
116: if (options->x11_forwarding == -1)
1.30 markus 117: options->x11_forwarding = 0;
1.25 markus 118: if (options->x11_display_offset == -1)
1.30 markus 119: options->x11_display_offset = 10;
1.42 markus 120: #ifdef XAUTH_PATH
121: if (options->xauth_location == NULL)
122: options->xauth_location = XAUTH_PATH;
123: #endif /* XAUTH_PATH */
1.25 markus 124: if (options->strict_modes == -1)
125: options->strict_modes = 1;
126: if (options->keepalives == -1)
127: options->keepalives = 1;
128: if (options->log_facility == (SyslogFacility) (-1))
129: options->log_facility = SYSLOG_FACILITY_AUTH;
130: if (options->log_level == (LogLevel) (-1))
1.58 markus 131: options->log_level = SYSLOG_LEVEL_INFO;
1.25 markus 132: if (options->rhosts_authentication == -1)
133: options->rhosts_authentication = 0;
134: if (options->rhosts_rsa_authentication == -1)
1.30 markus 135: options->rhosts_rsa_authentication = 0;
1.25 markus 136: if (options->rsa_authentication == -1)
137: options->rsa_authentication = 1;
1.54 markus 138: if (options->pubkey_authentication == -1)
139: options->pubkey_authentication = 1;
1.1 deraadt 140: #ifdef KRB4
1.25 markus 141: if (options->kerberos_authentication == -1)
142: options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
143: if (options->kerberos_or_local_passwd == -1)
144: options->kerberos_or_local_passwd = 1;
145: if (options->kerberos_ticket_cleanup == -1)
146: options->kerberos_ticket_cleanup = 1;
1.4 dugsong 147: #endif /* KRB4 */
148: #ifdef AFS
1.25 markus 149: if (options->kerberos_tgt_passing == -1)
150: options->kerberos_tgt_passing = 0;
151: if (options->afs_token_passing == -1)
152: options->afs_token_passing = k_hasafs();
1.4 dugsong 153: #endif /* AFS */
1.25 markus 154: if (options->password_authentication == -1)
155: options->password_authentication = 1;
1.52 markus 156: if (options->kbd_interactive_authentication == -1)
157: options->kbd_interactive_authentication = 0;
1.25 markus 158: if (options->skey_authentication == -1)
159: options->skey_authentication = 1;
160: if (options->permit_empty_passwd == -1)
1.30 markus 161: options->permit_empty_passwd = 0;
1.25 markus 162: if (options->use_login == -1)
163: options->use_login = 0;
1.53 markus 164: if (options->allow_tcp_forwarding == -1)
165: options->allow_tcp_forwarding = 1;
1.38 markus 166: if (options->gateway_ports == -1)
167: options->gateway_ports = 0;
1.46 markus 168: if (options->max_startups == -1)
169: options->max_startups = 10;
1.50 markus 170: if (options->max_startups_rate == -1)
171: options->max_startups_rate = 100; /* 100% */
172: if (options->max_startups_begin == -1)
173: options->max_startups_begin = options->max_startups;
1.1 deraadt 174: }
175:
176: /* Keyword tokens. */
1.25 markus 177: typedef enum {
178: sBadOption, /* == unknown option */
179: sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
180: sPermitRootLogin, sLogFacility, sLogLevel,
181: sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
1.1 deraadt 182: #ifdef KRB4
1.25 markus 183: sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
1.1 deraadt 184: #endif
185: #ifdef AFS
1.25 markus 186: sKerberosTgtPassing, sAFSTokenPassing,
1.1 deraadt 187: #endif
1.25 markus 188: sSkeyAuthentication,
1.52 markus 189: sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
1.25 markus 190: sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
191: sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
1.53 markus 192: sUseLogin, sAllowTcpForwarding,
193: sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
1.54 markus 194: sIgnoreUserKnownHosts, sCiphers, sProtocol, sPidFile,
195: sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
1.57 markus 196: sBanner
1.1 deraadt 197: } ServerOpCodes;
198:
199: /* Textual representation of the tokens. */
1.25 markus 200: static struct {
201: const char *name;
202: ServerOpCodes opcode;
203: } keywords[] = {
204: { "port", sPort },
205: { "hostkey", sHostKeyFile },
1.54 markus 206: { "hostdsakey", sHostKeyFile }, /* alias */
1.36 markus 207: { "pidfile", sPidFile },
1.25 markus 208: { "serverkeybits", sServerKeyBits },
209: { "logingracetime", sLoginGraceTime },
210: { "keyregenerationinterval", sKeyRegenerationTime },
211: { "permitrootlogin", sPermitRootLogin },
212: { "syslogfacility", sLogFacility },
213: { "loglevel", sLogLevel },
214: { "rhostsauthentication", sRhostsAuthentication },
215: { "rhostsrsaauthentication", sRhostsRSAAuthentication },
216: { "rsaauthentication", sRSAAuthentication },
1.54 markus 217: { "pubkeyauthentication", sPubkeyAuthentication },
218: { "dsaauthentication", sPubkeyAuthentication }, /* alias */
1.1 deraadt 219: #ifdef KRB4
1.25 markus 220: { "kerberosauthentication", sKerberosAuthentication },
221: { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
222: { "kerberosticketcleanup", sKerberosTicketCleanup },
1.1 deraadt 223: #endif
1.4 dugsong 224: #ifdef AFS
1.25 markus 225: { "kerberostgtpassing", sKerberosTgtPassing },
226: { "afstokenpassing", sAFSTokenPassing },
1.1 deraadt 227: #endif
1.25 markus 228: { "passwordauthentication", sPasswordAuthentication },
1.52 markus 229: { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
1.25 markus 230: { "skeyauthentication", sSkeyAuthentication },
231: { "checkmail", sCheckMail },
232: { "listenaddress", sListenAddress },
233: { "printmotd", sPrintMotd },
234: { "ignorerhosts", sIgnoreRhosts },
235: { "ignoreuserknownhosts", sIgnoreUserKnownHosts },
236: { "x11forwarding", sX11Forwarding },
237: { "x11displayoffset", sX11DisplayOffset },
1.42 markus 238: { "xauthlocation", sXAuthLocation },
1.25 markus 239: { "strictmodes", sStrictModes },
240: { "permitemptypasswords", sEmptyPasswd },
241: { "uselogin", sUseLogin },
242: { "randomseed", sRandomSeedFile },
243: { "keepalive", sKeepAlives },
1.53 markus 244: { "allowtcpforwarding", sAllowTcpForwarding },
1.25 markus 245: { "allowusers", sAllowUsers },
246: { "denyusers", sDenyUsers },
247: { "allowgroups", sAllowGroups },
248: { "denygroups", sDenyGroups },
1.33 markus 249: { "ciphers", sCiphers },
250: { "protocol", sProtocol },
1.38 markus 251: { "gatewayports", sGatewayPorts },
1.43 jakob 252: { "subsystem", sSubsystem },
1.46 markus 253: { "maxstartups", sMaxStartups },
1.57 markus 254: { "banner", sBanner },
1.25 markus 255: { NULL, 0 }
1.1 deraadt 256: };
257:
1.27 markus 258: /*
259: * Returns the number of the token pointed to by cp of length len. Never
260: * returns if the token is not known.
261: */
1.1 deraadt 262:
1.34 markus 263: static ServerOpCodes
1.25 markus 264: parse_token(const char *cp, const char *filename,
265: int linenum)
1.1 deraadt 266: {
1.55 markus 267: u_int i;
1.1 deraadt 268:
1.25 markus 269: for (i = 0; keywords[i].name; i++)
1.28 markus 270: if (strcasecmp(cp, keywords[i].name) == 0)
1.25 markus 271: return keywords[i].opcode;
272:
273: fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
274: filename, linenum, cp);
275: return sBadOption;
1.1 deraadt 276: }
277:
1.29 markus 278: /*
279: * add listen address
280: */
1.34 markus 281: void
1.29 markus 282: add_listen_addr(ServerOptions *options, char *addr)
283: {
284: extern int IPv4or6;
285: struct addrinfo hints, *ai, *aitop;
286: char strport[NI_MAXSERV];
287: int gaierr;
288: int i;
289:
290: if (options->num_ports == 0)
291: options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
292: for (i = 0; i < options->num_ports; i++) {
293: memset(&hints, 0, sizeof(hints));
294: hints.ai_family = IPv4or6;
295: hints.ai_socktype = SOCK_STREAM;
296: hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
297: snprintf(strport, sizeof strport, "%d", options->ports[i]);
298: if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
299: fatal("bad addr or host: %s (%s)\n",
300: addr ? addr : "<NULL>",
301: gai_strerror(gaierr));
302: for (ai = aitop; ai->ai_next; ai = ai->ai_next)
303: ;
304: ai->ai_next = options->listen_addrs;
305: options->listen_addrs = aitop;
306: }
307: }
308:
1.1 deraadt 309: /* Reads the server configuration file. */
310:
1.34 markus 311: void
1.25 markus 312: read_server_config(ServerOptions *options, const char *filename)
1.1 deraadt 313: {
1.25 markus 314: FILE *f;
315: char line[1024];
1.47 ho 316: char *cp, **charptr, *arg;
1.25 markus 317: int linenum, *intptr, value;
318: int bad_options = 0;
319: ServerOpCodes opcode;
1.43 jakob 320: int i;
1.25 markus 321:
322: f = fopen(filename, "r");
323: if (!f) {
324: perror(filename);
1.1 deraadt 325: exit(1);
1.25 markus 326: }
327: linenum = 0;
328: while (fgets(line, sizeof(line), f)) {
329: linenum++;
1.48 provos 330: cp = line;
331: arg = strdelim(&cp);
332: /* Ignore leading whitespace */
333: if (*arg == '\0')
1.49 markus 334: arg = strdelim(&cp);
1.48 provos 335: if (!*arg || *arg == '#')
1.25 markus 336: continue;
1.54 markus 337: intptr = NULL;
338: charptr = NULL;
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:
1.54 markus 392: intptr = &options->num_host_key_files;
393: if (*intptr >= MAX_HOSTKEYS) {
394: fprintf(stderr, "%s line %d: to many host keys specified (max %d).\n",
395: filename, linenum, MAX_HOSTKEYS);
396: exit(1);
397: }
398: charptr = &options->host_key_files[*intptr];
1.42 markus 399: parse_filename:
1.48 provos 400: arg = strdelim(&cp);
1.47 ho 401: if (!arg || *arg == '\0') {
1.25 markus 402: fprintf(stderr, "%s line %d: missing file name.\n",
1.36 markus 403: filename, linenum);
404: exit(1);
405: }
1.54 markus 406: if (*charptr == NULL) {
1.47 ho 407: *charptr = tilde_expand_filename(arg, getuid());
1.54 markus 408: /* increase optional counter */
409: if (intptr != NULL)
410: *intptr = *intptr + 1;
411: }
1.36 markus 412: break;
413:
414: case sPidFile:
415: charptr = &options->pid_file;
1.42 markus 416: goto parse_filename;
1.25 markus 417:
418: case sRandomSeedFile:
419: fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
420: filename, linenum);
1.48 provos 421: arg = strdelim(&cp);
1.25 markus 422: break;
423:
424: case sPermitRootLogin:
425: intptr = &options->permit_root_login;
1.48 provos 426: arg = strdelim(&cp);
1.47 ho 427: if (!arg || *arg == '\0') {
1.25 markus 428: fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
429: filename, linenum);
430: exit(1);
431: }
1.47 ho 432: if (strcmp(arg, "without-password") == 0)
1.25 markus 433: value = 2;
1.47 ho 434: else if (strcmp(arg, "yes") == 0)
1.25 markus 435: value = 1;
1.47 ho 436: else if (strcmp(arg, "no") == 0)
1.25 markus 437: value = 0;
438: else {
439: fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
1.47 ho 440: filename, linenum, arg);
1.25 markus 441: exit(1);
442: }
443: if (*intptr == -1)
444: *intptr = value;
445: break;
446:
447: case sIgnoreRhosts:
448: intptr = &options->ignore_rhosts;
449: parse_flag:
1.48 provos 450: arg = strdelim(&cp);
1.47 ho 451: if (!arg || *arg == '\0') {
1.25 markus 452: fprintf(stderr, "%s line %d: missing yes/no argument.\n",
453: filename, linenum);
454: exit(1);
455: }
1.47 ho 456: if (strcmp(arg, "yes") == 0)
1.25 markus 457: value = 1;
1.47 ho 458: else if (strcmp(arg, "no") == 0)
1.25 markus 459: value = 0;
460: else {
461: fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
1.47 ho 462: filename, linenum, arg);
1.25 markus 463: exit(1);
464: }
465: if (*intptr == -1)
466: *intptr = value;
467: break;
468:
469: case sIgnoreUserKnownHosts:
470: intptr = &options->ignore_user_known_hosts;
1.31 markus 471: goto parse_flag;
1.25 markus 472:
473: case sRhostsAuthentication:
474: intptr = &options->rhosts_authentication;
475: goto parse_flag;
476:
477: case sRhostsRSAAuthentication:
478: intptr = &options->rhosts_rsa_authentication;
479: goto parse_flag;
480:
481: case sRSAAuthentication:
482: intptr = &options->rsa_authentication;
1.39 markus 483: goto parse_flag;
484:
1.54 markus 485: case sPubkeyAuthentication:
486: intptr = &options->pubkey_authentication;
1.25 markus 487: goto parse_flag;
488:
1.1 deraadt 489: #ifdef KRB4
1.25 markus 490: case sKerberosAuthentication:
491: intptr = &options->kerberos_authentication;
492: goto parse_flag;
493:
494: case sKerberosOrLocalPasswd:
495: intptr = &options->kerberos_or_local_passwd;
496: goto parse_flag;
497:
498: case sKerberosTicketCleanup:
499: intptr = &options->kerberos_ticket_cleanup;
500: goto parse_flag;
1.1 deraadt 501: #endif
1.25 markus 502:
1.4 dugsong 503: #ifdef AFS
1.25 markus 504: case sKerberosTgtPassing:
505: intptr = &options->kerberos_tgt_passing;
506: goto parse_flag;
507:
508: case sAFSTokenPassing:
509: intptr = &options->afs_token_passing;
510: goto parse_flag;
511: #endif
512:
513: case sPasswordAuthentication:
514: intptr = &options->password_authentication;
1.52 markus 515: goto parse_flag;
516:
517: case sKbdInteractiveAuthentication:
518: intptr = &options->kbd_interactive_authentication;
1.25 markus 519: goto parse_flag;
520:
521: case sCheckMail:
522: intptr = &options->check_mail;
523: goto parse_flag;
1.10 markus 524:
1.25 markus 525: case sSkeyAuthentication:
526: intptr = &options->skey_authentication;
527: goto parse_flag;
528:
529: case sPrintMotd:
530: intptr = &options->print_motd;
531: goto parse_flag;
532:
533: case sX11Forwarding:
534: intptr = &options->x11_forwarding;
535: goto parse_flag;
536:
537: case sX11DisplayOffset:
538: intptr = &options->x11_display_offset;
539: goto parse_int;
540:
1.42 markus 541: case sXAuthLocation:
542: charptr = &options->xauth_location;
543: goto parse_filename;
544:
1.25 markus 545: case sStrictModes:
546: intptr = &options->strict_modes;
547: goto parse_flag;
548:
549: case sKeepAlives:
550: intptr = &options->keepalives;
551: goto parse_flag;
552:
553: case sEmptyPasswd:
554: intptr = &options->permit_empty_passwd;
555: goto parse_flag;
556:
557: case sUseLogin:
558: intptr = &options->use_login;
1.38 markus 559: goto parse_flag;
560:
561: case sGatewayPorts:
562: intptr = &options->gateway_ports;
1.25 markus 563: goto parse_flag;
564:
565: case sLogFacility:
566: intptr = (int *) &options->log_facility;
1.48 provos 567: arg = strdelim(&cp);
1.47 ho 568: value = log_facility_number(arg);
1.25 markus 569: if (value == (SyslogFacility) - 1)
570: fatal("%.200s line %d: unsupported log facility '%s'\n",
1.47 ho 571: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 572: if (*intptr == -1)
573: *intptr = (SyslogFacility) value;
574: break;
575:
576: case sLogLevel:
577: intptr = (int *) &options->log_level;
1.48 provos 578: arg = strdelim(&cp);
1.47 ho 579: value = log_level_number(arg);
1.25 markus 580: if (value == (LogLevel) - 1)
581: fatal("%.200s line %d: unsupported log level '%s'\n",
1.47 ho 582: filename, linenum, arg ? arg : "<NONE>");
1.25 markus 583: if (*intptr == -1)
584: *intptr = (LogLevel) value;
585: break;
1.53 markus 586:
587: case sAllowTcpForwarding:
588: intptr = &options->allow_tcp_forwarding;
589: goto parse_flag;
1.25 markus 590:
591: case sAllowUsers:
1.48 provos 592: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 593: if (options->num_allow_users >= MAX_ALLOW_USERS)
594: fatal("%s line %d: too many allow users.\n",
595: filename, linenum);
1.47 ho 596: options->allow_users[options->num_allow_users++] = xstrdup(arg);
1.25 markus 597: }
598: break;
599:
600: case sDenyUsers:
1.48 provos 601: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 602: if (options->num_deny_users >= MAX_DENY_USERS)
603: fatal( "%s line %d: too many deny users.\n",
604: filename, linenum);
1.47 ho 605: options->deny_users[options->num_deny_users++] = xstrdup(arg);
1.25 markus 606: }
607: break;
608:
609: case sAllowGroups:
1.48 provos 610: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 611: if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
612: fatal("%s line %d: too many allow groups.\n",
613: filename, linenum);
1.47 ho 614: options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
1.25 markus 615: }
616: break;
617:
618: case sDenyGroups:
1.48 provos 619: while ((arg = strdelim(&cp)) && *arg != '\0') {
1.33 markus 620: if (options->num_deny_groups >= MAX_DENY_GROUPS)
621: fatal("%s line %d: too many deny groups.\n",
622: filename, linenum);
1.47 ho 623: options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
1.25 markus 624: }
1.33 markus 625: break;
626:
627: case sCiphers:
1.48 provos 628: arg = strdelim(&cp);
1.47 ho 629: if (!arg || *arg == '\0')
1.41 markus 630: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 631: if (!ciphers_valid(arg))
1.40 markus 632: fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
1.47 ho 633: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 634: if (options->ciphers == NULL)
1.47 ho 635: options->ciphers = xstrdup(arg);
1.33 markus 636: break;
637:
638: case sProtocol:
639: intptr = &options->protocol;
1.48 provos 640: arg = strdelim(&cp);
1.47 ho 641: if (!arg || *arg == '\0')
1.41 markus 642: fatal("%s line %d: Missing argument.", filename, linenum);
1.47 ho 643: value = proto_spec(arg);
1.33 markus 644: if (value == SSH_PROTO_UNKNOWN)
645: fatal("%s line %d: Bad protocol spec '%s'.",
1.47 ho 646: filename, linenum, arg ? arg : "<NONE>");
1.33 markus 647: if (*intptr == SSH_PROTO_UNKNOWN)
648: *intptr = value;
1.43 jakob 649: break;
650:
651: case sSubsystem:
652: if(options->num_subsystems >= MAX_SUBSYSTEMS) {
653: fatal("%s line %d: too many subsystems defined.",
654: filename, linenum);
655: }
1.48 provos 656: arg = strdelim(&cp);
1.47 ho 657: if (!arg || *arg == '\0')
1.43 jakob 658: fatal("%s line %d: Missing subsystem name.",
659: filename, linenum);
660: for (i = 0; i < options->num_subsystems; i++)
1.47 ho 661: if(strcmp(arg, options->subsystem_name[i]) == 0)
1.43 jakob 662: fatal("%s line %d: Subsystem '%s' already defined.",
1.47 ho 663: filename, linenum, arg);
664: options->subsystem_name[options->num_subsystems] = xstrdup(arg);
1.48 provos 665: arg = strdelim(&cp);
1.47 ho 666: if (!arg || *arg == '\0')
1.43 jakob 667: fatal("%s line %d: Missing subsystem command.",
668: filename, linenum);
1.47 ho 669: options->subsystem_command[options->num_subsystems] = xstrdup(arg);
1.43 jakob 670: options->num_subsystems++;
1.25 markus 671: break;
1.46 markus 672:
673: case sMaxStartups:
1.50 markus 674: arg = strdelim(&cp);
675: if (!arg || *arg == '\0')
676: fatal("%s line %d: Missing MaxStartups spec.",
677: filename, linenum);
678: if (sscanf(arg, "%d:%d:%d",
679: &options->max_startups_begin,
680: &options->max_startups_rate,
681: &options->max_startups) == 3) {
682: if (options->max_startups_begin >
683: options->max_startups ||
684: options->max_startups_rate > 100 ||
685: options->max_startups_rate < 1)
686: fatal("%s line %d: Illegal MaxStartups spec.",
687: filename, linenum);
688: break;
689: }
1.46 markus 690: intptr = &options->max_startups;
691: goto parse_int;
1.25 markus 692:
1.57 markus 693: case sBanner:
694: charptr = &options->banner;
695: goto parse_filename;
696:
1.25 markus 697: default:
698: fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
1.47 ho 699: filename, linenum, arg, opcode);
1.25 markus 700: exit(1);
1.13 markus 701: }
1.48 provos 702: if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
1.47 ho 703: fprintf(stderr,
704: "%s line %d: garbage at end of line; \"%.200s\".\n",
705: filename, linenum, arg);
1.25 markus 706: exit(1);
1.13 markus 707: }
1.1 deraadt 708: }
1.25 markus 709: fclose(f);
710: if (bad_options > 0) {
711: fprintf(stderr, "%s: terminating, %d bad configuration options\n",
712: filename, bad_options);
713: exit(1);
1.1 deraadt 714: }
715: }
![[BACK]](/icons/back.gif){kind=icon}
Return to servconf.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / ssh