2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 * Copyright 1998-2008 The OpenLDAP Foundation.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted only as authorized by the OpenLDAP
11 * A copy of this license is available in the file LICENSE in the
12 * top-level directory of the distribution or, alternatively, at
13 * <http://www.OpenLDAP.org/license.html>.
15 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
16 * All rights reserved.
26 #include <ac/stdlib.h>
29 #include <ac/socket.h>
30 #include <ac/string.h>
33 #include <ac/unistd.h>
38 /* Caller should hold the req_mutex if simultaneous accesses are possible */
39 int ldap_open_defconn( LDAP *ld )
41 ld->ld_defconn = ldap_new_connection( ld,
42 &ld->ld_options.ldo_defludp, 1, 1, NULL );
44 if( ld->ld_defconn == NULL ) {
45 ld->ld_errno = LDAP_SERVER_DOWN;
49 ++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
54 * ldap_open - initialize and connect to an ldap server. A magic cookie to
55 * be used for future communication is returned on success, NULL on failure.
56 * "host" may be a space-separated list of hosts or IP addresses
60 * ld = ldap_open( hostname, port );
64 ldap_open( LDAP_CONST char *host, int port )
69 Debug( LDAP_DEBUG_TRACE, "ldap_open(%s, %d)\n",
72 ld = ldap_init( host, port );
77 rc = ldap_open_defconn( ld );
80 ldap_ld_free( ld, 0, NULL, NULL );
84 Debug( LDAP_DEBUG_TRACE, "ldap_open: %s\n",
85 ld != NULL ? "succeeded" : "failed", 0, 0 );
93 ldap_create( LDAP **ldp )
96 struct ldapoptions *gopts;
99 /* Get pointer to global option structure */
100 if ( (gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
101 return LDAP_NO_MEMORY;
104 /* Initialize the global options, if not already done. */
105 if( gopts->ldo_valid != LDAP_INITIALIZED ) {
106 ldap_int_initialize(gopts, NULL);
107 if ( gopts->ldo_valid != LDAP_INITIALIZED )
108 return LDAP_LOCAL_ERROR;
111 Debug( LDAP_DEBUG_TRACE, "ldap_create\n", 0, 0, 0 );
113 if ( (ld = (LDAP *) LDAP_CALLOC( 1, sizeof(LDAP) )) == NULL ) {
114 return( LDAP_NO_MEMORY );
117 /* copy the global options */
118 AC_MEMCPY(&ld->ld_options, gopts, sizeof(ld->ld_options));
120 ld->ld_valid = LDAP_VALID_SESSION;
122 /* but not pointers to malloc'ed items */
123 ld->ld_options.ldo_sctrls = NULL;
124 ld->ld_options.ldo_cctrls = NULL;
125 ld->ld_options.ldo_defludp = NULL;
127 #ifdef HAVE_CYRUS_SASL
128 ld->ld_options.ldo_def_sasl_mech = gopts->ldo_def_sasl_mech
129 ? LDAP_STRDUP( gopts->ldo_def_sasl_mech ) : NULL;
130 ld->ld_options.ldo_def_sasl_realm = gopts->ldo_def_sasl_realm
131 ? LDAP_STRDUP( gopts->ldo_def_sasl_realm ) : NULL;
132 ld->ld_options.ldo_def_sasl_authcid = gopts->ldo_def_sasl_authcid
133 ? LDAP_STRDUP( gopts->ldo_def_sasl_authcid ) : NULL;
134 ld->ld_options.ldo_def_sasl_authzid = gopts->ldo_def_sasl_authzid
135 ? LDAP_STRDUP( gopts->ldo_def_sasl_authzid ) : NULL;
139 /* We explicitly inherit the SSL_CTX, don't need the names/paths. Leave
140 * them empty to allow new SSL_CTX's to be created from scratch.
142 memset( &ld->ld_options.ldo_tls_info, 0,
143 sizeof( ld->ld_options.ldo_tls_info ));
144 ld->ld_options.ldo_tls_ctx = NULL;
147 if ( gopts->ldo_defludp ) {
148 ld->ld_options.ldo_defludp = ldap_url_duplist(gopts->ldo_defludp);
150 if ( ld->ld_options.ldo_defludp == NULL ) goto nomem;
153 if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) goto nomem;
155 ld->ld_lberoptions = LBER_USE_DER;
157 ld->ld_sb = ber_sockbuf_alloc( );
158 if ( ld->ld_sb == NULL ) goto nomem;
160 #ifdef LDAP_R_COMPILE
161 ldap_pvt_thread_mutex_init( &ld->ld_req_mutex );
162 ldap_pvt_thread_mutex_init( &ld->ld_res_mutex );
163 ldap_pvt_thread_mutex_init( &ld->ld_conn_mutex );
169 ldap_free_select_info( ld->ld_selectinfo );
170 ldap_free_urllist( ld->ld_options.ldo_defludp );
171 #ifdef HAVE_CYRUS_SASL
172 LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
173 LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
174 LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
175 LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
177 LDAP_FREE( (char *)ld );
178 return LDAP_NO_MEMORY;
182 * ldap_init - initialize the LDAP library. A magic cookie to be used for
183 * future communication is returned on success, NULL on failure.
184 * "host" may be a space-separated list of hosts or IP addresses
188 * ld = ldap_init( host, port );
191 ldap_init( LDAP_CONST char *defhost, int defport )
196 rc = ldap_create(&ld);
197 if ( rc != LDAP_SUCCESS )
201 ld->ld_options.ldo_defport = defport;
203 if (defhost != NULL) {
204 rc = ldap_set_option(ld, LDAP_OPT_HOST_NAME, defhost);
205 if ( rc != LDAP_SUCCESS ) {
206 ldap_ld_free(ld, 1, NULL, NULL);
216 ldap_initialize( LDAP **ldp, LDAP_CONST char *url )
222 rc = ldap_create(&ld);
223 if ( rc != LDAP_SUCCESS )
227 rc = ldap_set_option(ld, LDAP_OPT_URI, url);
228 if ( rc != LDAP_SUCCESS ) {
229 ldap_ld_free(ld, 1, NULL, NULL);
232 #ifdef LDAP_CONNECTIONLESS
233 if (ldap_is_ldapc_url(url))
246 LDAP_CONST char *url,
255 rc = ldap_create( &ld );
256 if( rc != LDAP_SUCCESS )
260 rc = ldap_set_option(ld, LDAP_OPT_URI, url);
261 if ( rc != LDAP_SUCCESS ) {
262 ldap_ld_free(ld, 1, NULL, NULL);
267 /* Attach the passed socket as the LDAP's connection */
268 conn = ldap_new_connection( ld, NULL, 1, 0, NULL);
270 ldap_unbind_ext( ld, NULL, NULL );
271 return( LDAP_NO_MEMORY );
273 ber_sockbuf_ctrl( conn->lconn_sb, LBER_SB_OPT_SET_FD, &fd );
274 ld->ld_defconn = conn;
275 ++ld->ld_defconn->lconn_refcnt; /* so it never gets closed/freed */
280 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
281 LBER_SBIOD_LEVEL_PROVIDER, (void *)"tcp_" );
283 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_tcp,
284 LBER_SBIOD_LEVEL_PROVIDER, NULL );
287 #ifdef LDAP_CONNECTIONLESS
290 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
291 LBER_SBIOD_LEVEL_PROVIDER, (void *)"udp_" );
293 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_udp,
294 LBER_SBIOD_LEVEL_PROVIDER, NULL );
295 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_readahead,
296 LBER_SBIOD_LEVEL_PROVIDER, NULL );
298 #endif /* LDAP_CONNECTIONLESS */
302 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
303 LBER_SBIOD_LEVEL_PROVIDER, (void *)"ipc_" );
305 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_fd,
306 LBER_SBIOD_LEVEL_PROVIDER, NULL );
310 /* caller must supply sockbuf handlers */
314 ldap_unbind_ext( ld, NULL, NULL );
315 return LDAP_PARAM_ERROR;
319 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
320 INT_MAX, (void *)"ldap_" );
323 /* Add the connection to the *LDAP's select pool */
324 ldap_mark_select_read( ld, conn->lconn_sb );
325 ldap_mark_select_write( ld, conn->lconn_sb );
332 ldap_int_open_connection(
342 Debug( LDAP_DEBUG_TRACE, "ldap_int_open_connection\n", 0, 0, 0 );
344 switch ( proto = ldap_pvt_url_scheme2proto( srv->lud_scheme ) ) {
346 port = srv->lud_port;
348 if ( srv->lud_host == NULL || *srv->lud_host == 0 ) {
351 host = srv->lud_host;
355 if( strcmp(srv->lud_scheme, "ldaps") == 0 ) {
362 rc = ldap_connect_to_host( ld, conn->lconn_sb,
363 proto, host, port, async );
365 if ( rc == -1 ) return rc;
368 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
369 LBER_SBIOD_LEVEL_PROVIDER, (void *)"tcp_" );
371 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_tcp,
372 LBER_SBIOD_LEVEL_PROVIDER, NULL );
376 #ifdef LDAP_CONNECTIONLESS
378 port = srv->lud_port;
380 if ( srv->lud_host == NULL || *srv->lud_host == 0 ) {
383 host = srv->lud_host;
386 if( !port ) port = LDAP_PORT;
389 rc = ldap_connect_to_host( ld, conn->lconn_sb,
390 proto, host, port, async );
392 if ( rc == -1 ) return rc;
394 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
395 LBER_SBIOD_LEVEL_PROVIDER, (void *)"udp_" );
397 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_udp,
398 LBER_SBIOD_LEVEL_PROVIDER, NULL );
400 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_readahead,
401 LBER_SBIOD_LEVEL_PROVIDER, NULL );
407 /* only IPC mechanism supported is PF_LOCAL (PF_UNIX) */
408 rc = ldap_connect_to_path( ld, conn->lconn_sb,
409 srv->lud_host, async );
410 if ( rc == -1 ) return rc;
412 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
413 LBER_SBIOD_LEVEL_PROVIDER, (void *)"ipc_" );
415 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_fd,
416 LBER_SBIOD_LEVEL_PROVIDER, NULL );
419 #endif /* LDAP_PF_LOCAL */
425 conn->lconn_created = time( NULL );
428 ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
429 INT_MAX, (void *)"ldap_" );
432 #ifdef LDAP_CONNECTIONLESS
433 if( proto == LDAP_PROTO_UDP ) return 0;
437 if (ld->ld_options.ldo_tls_mode == LDAP_OPT_X_TLS_HARD ||
438 strcmp( srv->lud_scheme, "ldaps" ) == 0 )
440 ++conn->lconn_refcnt; /* avoid premature free */
442 rc = ldap_int_tls_start( ld, conn, srv );
444 --conn->lconn_refcnt;
446 if (rc != LDAP_SUCCESS) {
457 ldap_open_internal_connection( LDAP **ldp, ber_socket_t *fdp )
463 rc = ldap_create( ldp );
464 if( rc != LDAP_SUCCESS ) {
469 /* Make it appear that a search request, msgid 0, was sent */
470 lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ));
472 ldap_unbind_ext( *ldp, NULL, NULL );
474 return( LDAP_NO_MEMORY );
476 memset(lr, 0, sizeof( LDAPRequest ));
478 lr->lr_status = LDAP_REQST_INPROGRESS;
479 lr->lr_res_errno = LDAP_SUCCESS;
480 /* no mutex lock needed, we just created this ld here */
481 (*ldp)->ld_requests = lr;
483 /* Attach the passed socket as the *LDAP's connection */
484 c = ldap_new_connection( *ldp, NULL, 1, 0, NULL);
486 ldap_unbind_ext( *ldp, NULL, NULL );
488 return( LDAP_NO_MEMORY );
490 ber_sockbuf_ctrl( c->lconn_sb, LBER_SB_OPT_SET_FD, fdp );
492 ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_debug,
493 LBER_SBIOD_LEVEL_PROVIDER, (void *)"int_" );
495 ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_tcp,
496 LBER_SBIOD_LEVEL_PROVIDER, NULL );
497 (*ldp)->ld_defconn = c;
499 /* Add the connection to the *LDAP's select pool */
500 ldap_mark_select_read( *ldp, c->lconn_sb );
501 ldap_mark_select_write( *ldp, c->lconn_sb );
503 /* Make this connection an LDAP V3 protocol connection */
505 ldap_set_option( *ldp, LDAP_OPT_PROTOCOL_VERSION, &rc );
507 return( LDAP_SUCCESS );