2 * Copyright (c) 1990-1996 Regents of the University of Michigan.
5 * Redistribution and use in source and binary forms are permitted
6 * provided that this notice is preserved and that due credit is given
7 * to the University of Michigan at Ann Arbor. The name of the University
8 * may not be used to endorse or promote products derived from this
9 * software without specific prior written permission. This software
10 * is provided ``as is'' without express or implied warranty.
13 * Some code fragments to run from inetd stolen from the University
14 * of Minnesota gopher distribution, which had this copyright on it:
16 * Part of the Internet Gopher program, copyright (C) 1991
17 * University of Minnesota Microcomputer Workstation and Networks Center
24 #include <ac/signal.h>
25 #include <ac/socket.h>
26 #include <ac/string.h>
27 #include <ac/syslog.h>
29 #include <ac/unistd.h>
33 #include <ac/setproctitle.h>
36 #include <quipu/commonarg.h>
37 #include <quipu/ds_error.h>
40 #include "../../libraries/liblber/lber-int.h" /* get struct sockbuf */
47 int allow_severity = LOG_INFO;
48 int deny_severity = LOG_NOTICE;
49 #endif /* TCP_WRAPPERS */
54 static RETSIGTYPE wait4child();
55 #ifdef LDAP_CONNECTIONLESS
68 #ifdef LDAP_CONNECTIONLESS
71 int idletime = DEFAULT_TIMEOUT;
72 int referral_connection_timeout = DEFAULT_REFERRAL_TIMEOUT;
73 struct timeval conn_start_tv;
75 char *krb_ldap_service = "ldapserver";
76 char *krb_x500_service = "x500dsa";
77 char *krb_x500_instance;
79 char *kerberos_keyfile;
85 extern char Versionstr[];
90 fprintf( stderr, "usage: %s [-d debuglvl] [-p port] [-l] [-c dsa] [-r referraltimeout]", name );
91 #ifdef LDAP_CONNECTIONLESS
92 fprintf( stderr, " [ -U | -t timeout ]" );
94 fprintf( stderr, " [ -t timeout ]" );
96 fprintf( stderr, " [-I]" );
98 fprintf( stderr, " [-i dsainstance]" );
100 fprintf( stderr, "\n" );
108 #ifdef LDAP_CONNECTIONLESS
111 int myport = LDAP_PORT;
112 int i, pid, socktype;
116 struct sockaddr_in from;
120 RETSIGTYPE wait4child();
121 #ifdef LDAP_PROCTITLE
128 /* Pick up socket from inetd-type server on VMS */
129 if ( (ns = socket_from_server( NULL )) > 0 )
132 /* Socket from inetd is usually 0 */
137 if ( (dsapargv = (char **) malloc( 4 * sizeof(char *) )) == NULL ) {
141 dsapargv[0] = argv[0];
147 kerberos_keyfile = "";
150 /* process command line arguments */
151 while ( (i = getopt( argc, argv, "d:lp:f:i:c:r:t:IuU" )) != EOF ) {
153 case 'c': /* specify dsa to contact */
154 dsapargv[1] = "-call";
155 dsapargv[2] = strdup( optarg );
159 case 'd': /* turn on debugging */
161 ldap_debug = atoi( optarg );
162 if ( ldap_debug & LDAP_DEBUG_PACKETS )
163 lber_debug = ldap_debug;
165 fprintf( stderr, "Not compiled with -DLDAP_DEBUG!\n" );
169 case 'l': /* do syslogging */
173 case 'p': /* specify port number */
174 myport = atoi( optarg );
177 case 'r': /* timeout for referral connections */
178 referral_connection_timeout = atoi( optarg );
181 case 't': /* timeout for idle connections */
182 idletime = atoi( optarg );
186 case 'f': /* kerberos key file */
187 kerberos_keyfile = strdup( optarg );
190 case 'i': /* x500 dsa kerberos instance */
191 if ( krb_x500_instance != NULL )
192 free( krb_x500_instance );
193 krb_x500_instance = strdup( optarg );
197 case 'I': /* Run from inetd */
201 #ifdef LDAP_CONNECTIONLESS
202 case 'U': /* UDP only (no TCP) */
208 case 'u': /* allow UDP requests (CLDAP) */
213 #endif /* LDAP_CONNECTIONLESS */
221 if ( optind < argc ) {
226 #ifdef LDAP_CONNECTIONLESS
227 if ( do_udp && !do_tcp && idletime != DEFAULT_TIMEOUT ) {
233 Debug( LDAP_DEBUG_TRACE, "%s", Versionstr, 0, 0 );
236 dtblsize = sysconf( _SC_OPEN_MAX );
237 #elif HAVE_GETDTABLESIZE
238 dtblsize = getdtablesize();
240 dtblsize = FD_SETSIZE;
244 if( dtblsize > FD_SETSIZE ) {
245 dtblsize = FD_SETSIZE;
247 #endif /* FD_SETSIZE */
249 #if defined(LDAP_PROCTITLE) && !defined( HAVE_SETPROCTITLE )
250 /* for setproctitle */
255 if ( (myname = strrchr( argv[0], '/' )) == NULL )
256 myname = strdup( argv[0] );
258 myname = strdup( myname + 1 );
261 * detach from the terminal if stderr is redirected or no
262 * debugging is wanted, and then arrange to reap children
266 #ifdef LDAP_PROCTITLE
267 setproctitle( "initializing" );
271 lutil_detach( ldap_debug, 1 );
273 lutil_detach( 0, 1 );
276 (void) SIGNAL( SIGCHLD, (void *) wait4child );
277 (void) SIGNAL( SIGINT, (void *) log_and_exit );
281 * set up syslogging (if desired)
285 openlog( myname, OPENLOG_OPTIONS, LOG_LOCAL4 );
287 openlog( myname, OPENLOG_OPTIONS );
292 * load the syntax handlers, oidtables, and initialize some stuff,
293 * then start listening
296 (void) quipu_syntaxes();
298 (void) pp_quipu_init( argv[0] );
300 #if ISODEPACKAGE == IC
302 dsa_operation_syntaxes();
305 (void) dsap_init( &dsapargc, &dsapargv );
306 (void) get_syntaxes();
308 len = sizeof( socktype );
309 getsockopt( ns, SOL_SOCKET, SO_TYPE, &socktype, &len );
310 if ( socktype == SOCK_DGRAM ) {
311 #ifdef LDAP_CONNECTIONLESS
312 Debug( LDAP_DEBUG_ARGS,
313 "CLDAP request from unknown (%s)\n",
314 inet_ntoa( from.sin_addr ), 0, 0 );
315 conn_start_tv.tv_sec = 0;
318 #else /* LDAP_CONNECTIONLESS */
319 Debug( LDAP_DEBUG_ARGS,
320 "Compile with -DLDAP_CONNECTIONLESS for UDP support\n",0,0,0 );
321 #endif /* LDAP_CONNECTIONLESS */
326 if ( getpeername( ns, (struct sockaddr *) &from, &len )
328 hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
329 sizeof(from.sin_addr.s_addr), AF_INET );
330 Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
331 (hp == NULL) ? "unknown" : hp->h_name,
332 inet_ntoa( from.sin_addr ), 0 );
335 syslog( LOG_INFO, "connection from %s (%s)",
336 (hp == NULL) ? "unknown" : hp->h_name,
337 inet_ntoa( from.sin_addr ) );
340 #ifdef LDAP_PROCTITLE
341 sprintf( title, "%s %d\n", hp == NULL ?
342 inet_ntoa( from.sin_addr ) : hp->h_name, myport );
343 setproctitle( title );
346 gettimeofday( &conn_start_tv, (struct timezone *) NULL );
353 tcps = set_socket( myport, 0 );
355 #ifdef LDAP_CONNECTIONLESS
357 udps = udp_init( myport, 1 );
361 * loop, wait for a connection, then fork off a child to handle it
362 * if we are doing CLDAP as well, handle those requests on the fly
365 #ifdef LDAP_PROCTITLE
366 #ifdef LDAP_CONNECTIONLESS
367 sprintf( title, "listening %s/%s %d", do_tcp ? "tcp" : "",
368 do_udp ? "udp" : "", myport );
370 sprintf( title, "listening %s %d", do_tcp ? "tcp" : "", myport );
372 setproctitle( title );
378 FD_SET( tcps, &readfds );
379 #ifdef LDAP_CONNECTIONLESS
381 FD_SET( udps, &readfds );
384 if ( select( dtblsize, &readfds, 0, 0, 0 ) < 1 ) {
386 if ( ldap_debug ) perror( "main select" );
391 #ifdef LDAP_CONNECTIONLESS
392 if ( do_udp && FD_ISSET( udps, &readfds ) ) {
393 do_queries( udps, 1 );
397 if ( !do_tcp || ! FD_ISSET( tcps, &readfds ) ) {
402 if ( (ns = accept( tcps, (struct sockaddr *) &from, &len ))
405 if ( ldap_debug ) perror( "accept" );
410 hp = gethostbyaddr( (char *) &(from.sin_addr.s_addr),
411 sizeof(from.sin_addr.s_addr), AF_INET );
414 if ( !hosts_ctl("ldapd", (hp == NULL) ? "unknown" : hp->h_name,
415 inet_ntoa( from.sin_addr ), STRING_UNKNOWN ) {
417 Debug( LDAP_DEBUG_ARGS, "connection from %s (%s) denied.\n",
418 (hp == NULL) ? "unknown" : hp->h_name,
419 inet_ntoa( from.sin_addr ), 0 );
422 syslog( LOG_NOTICE, "connection from %s (%s) denied.",
423 (hp == NULL) ? "unknown" : hp->h_name,
424 inet_ntoa( from.sin_addr ) );
430 #endif /* TCP_WRAPPERS */
432 Debug( LDAP_DEBUG_ARGS, "connection from %s (%s)\n",
433 (hp == NULL) ? "unknown" : hp->h_name,
434 inet_ntoa( from.sin_addr ), 0 );
438 syslog( LOG_INFO, "connection from %s (%s)",
439 (hp == NULL) ? "unknown" : hp->h_name,
440 inet_ntoa( from.sin_addr ) );
444 /* This is for debug on terminal on VMS */
446 #ifdef LDAP_PROCTITLE
447 setproctitle( hp == NULL ? inet_ntoa( from.sin_addr ) :
450 gettimeofday( &conn_start_tv, (struct timezone *) NULL );
451 (void) SIGNAL( SIGPIPE, (void *) log_and_exit );
457 switch( pid = fork() ) {
460 #ifdef LDAP_PROCTITLE
461 sprintf( title, "%s (%d)\n", hp == NULL ?
462 inet_ntoa( from.sin_addr ) : hp->h_name,
464 setproctitle( title );
466 gettimeofday( &conn_start_tv, (struct timezone *) NULL );
467 (void) SIGNAL( SIGPIPE, (void *) log_and_exit );
472 case -1: /* failed */
474 if ( ldap_debug ) perror( "fork" );
477 syslog( LOG_ERR, "fork failed %m" );
478 /* let things cool off */
482 default: /* parent */
484 Debug( LDAP_DEBUG_TRACE, "forked child %d\n", pid, 0,
495 int udp /* is this a UDP (CLDAP) request? */
500 struct timeval timeout;
502 #ifdef LDAP_CONNECTIONLESS
503 struct sockaddr saddr, faddr;
504 struct sockaddr *saddrlist[ 1 ];
505 #endif /* LDAP_CONNECTIONLESS */
507 Debug( LDAP_DEBUG_TRACE, "do_queries%s\n",
508 udp ? " udp" : "", 0, 0 );
511 * Loop, wait for a request from the client or a response from
512 * a dsa, then handle it. Dsap_ad is always a connection to the
513 * "default" dsa. Other connections can be made as a result of
514 * a referral being chased down. These association descriptors
515 * are kept track of with the message that caused the referral.
516 * The set_dsa_fds() routine traverses the list of outstanding
517 * messages, setting the appropriate bits in readfds.
524 (void) memset( (void *) &sb, '\0', sizeof( sb ) );
525 sb.sb_sd = clientsock;
526 sb.sb_naddr = ( udp ) ? 1 : 0;
527 #ifdef LDAP_CONNECTIONLESS
528 sb.sb_addrs = (void **)saddrlist;
529 sb.sb_fromaddr = &faddr;
530 sb.sb_useaddr = saddrlist[ 0 ] = &saddr;
532 sb.sb_ber.ber_buf = NULL;
533 sb.sb_ber.ber_ptr = NULL;
534 sb.sb_ber.ber_end = NULL;
536 timeout.tv_sec = idletime;
539 struct conn *dsaconn;
540 extern struct conn *conns;
543 FD_SET( clientsock, &readfds );
544 conn_setfds( &readfds );
547 if ( ldap_debug & LDAP_DEBUG_CONNS ) {
548 Debug( LDAP_DEBUG_CONNS, "FDLIST:", 0, 0, 0 );
549 for ( i = 0; i < dtblsize; i++ ) {
550 if ( FD_ISSET( i, &readfds ) ) {
551 Debug( LDAP_DEBUG_CONNS, " %d", i, 0,
555 Debug( LDAP_DEBUG_CONNS, "\n", 0, 0, 0 );
560 * hack - because of lber buffering, there might be stuff
561 * already waiting for us on the client sock.
564 if ( sb.sb_ber.ber_ptr >= sb.sb_ber.ber_end ) {
565 if ( (rc = select( dtblsize, &readfds, 0, 0,
566 udp ? 0 : &timeout )) < 1 ) {
568 if ( ldap_debug ) perror( "do_queries select" );
571 log_and_exit( 0 ); /* idle timeout */
573 Debug( LDAP_DEBUG_ANY, "select returns %d!\n",
576 /* client gone away - we can too */
577 if ( isclosed( clientsock ) )
581 * check if a dsa conn has gone away -
590 if ( sb.sb_ber.ber_ptr < sb.sb_ber.ber_end ||
591 FD_ISSET( clientsock, &readfds ) ) {
592 client_request( &sb, conns, udp );
594 if ( (dsaconn = conn_getfd( &readfds )) == NULL ) {
595 Debug( LDAP_DEBUG_ANY, "No DSA activity!\n",
600 dsa_response( dsaconn, &sb );
608 int udp /* UDP port? */
612 struct sockaddr_in addr;
614 if ( (s = socket( AF_INET, udp ? SOCK_DGRAM:SOCK_STREAM, 0 )) == -1 ) {
619 /* set option so clients can't keep us from coming back up */
621 if ( setsockopt( s, SOL_SOCKET, SO_REUSEADDR, (void *) &i, sizeof(i) )
623 perror( "setsockopt" );
628 (void)memset( (void *)&addr, '\0', sizeof( addr ));
629 addr.sin_family = AF_INET;
630 addr.sin_addr.s_addr = INADDR_ANY;
631 addr.sin_port = htons( port );
632 if ( bind( s, (struct sockaddr *) &addr, sizeof(addr) ) ) {
638 /* listen for connections */
639 if ( listen( s, 5 ) == -1 ) {
645 Debug( LDAP_DEBUG_TRACE, "listening on %s port %d\n",
646 udp ? "udp" : "tcp", port, 0 );
651 static RETSIGTYPE wait4child()
654 WAITSTATUSTYPE status;
657 Debug( LDAP_DEBUG_TRACE, "parent: catching child status\n", 0, 0, 0 );
660 while( waitpid( (pid_t) -1, NULL, WAIT_FLAGS ) > 0 )
663 while ( wait3( &status, WAIT_FLAGS, 0 ) > 0 )
667 (void) SIGNAL( SIGCHLD, (void *) wait4child );
672 log_and_exit( int exitcode )
677 if ( conn_start_tv.tv_sec == 0 ) {
678 syslog( LOG_INFO, "UDP exit(%d)", exitcode );
680 gettimeofday( &tv, (struct timezone *)NULL );
681 syslog( LOG_INFO, "TCP closed %d seconds, exit(%d)",
682 tv.tv_sec - conn_start_tv.tv_sec, exitcode );
690 #ifdef LDAP_CONNECTIONLESS
699 extern char *dsa_address;
700 extern struct PSAPaddr *psap_cpy();
701 extern struct conn *conns;
704 s = set_socket( port, 1 );
707 conns->c_dn = strdup("");
708 conns->c_cred = strdup("");
709 conns->c_credlen = 0;
710 conns->c_method = LDAP_AUTH_SIMPLE;
712 if ( dsa_address == NULL || (conns->c_paddr = str2paddr( dsa_address ))
714 fprintf(stderr, "Bad DSA address (%s)\n", dsa_address ?
715 dsa_address : "NULL" );
718 conns->c_paddr = psap_cpy(conns->c_paddr);
721 if ( do_bind_real(conns, &bound, &matched) != LDAP_SUCCESS) {
722 fprintf(stderr, "Cannot bind to directory\n");
725 if ( matched != NULL )
728 return( createsocket ? s : 0 );