X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Fopen.c;h=91368ec9786a80802a0988c4de638dad7312fd63;hb=8e48a3c3178e7ba17305a8553602b49be0c25f24;hp=13dd87ce84f665d1c1d16062ed849d20515dc882;hpb=83e2f3854300453c1cba7d1f9022cd396d41d7d8;p=openldap

diff --git a/libraries/libldap/open.c b/libraries/libldap/open.c
index 13dd87ce84..91368ec978 100644
--- a/libraries/libldap/open.c
+++ b/libraries/libldap/open.c
@@ -1,18 +1,27 @@
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- */
-/*  Portions
- *  Copyright (c) 1995 Regents of the University of Michigan.
- *  All rights reserved.
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2006 The OpenLDAP Foundation.
+ * All rights reserved.
  *
- *  open.c
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1995 Regents of the University of Michigan.
+ * All rights reserved.
  */
 
 #include "portable.h"
 
 #include <stdio.h>
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
 
 #include <ac/stdlib.h>
 
@@ -21,18 +30,23 @@
 #include <ac/string.h>
 #include <ac/time.h>
 
+#include <ac/unistd.h>
+
 #include "ldap-int.h"
+#include "ldap_log.h"
 
+/* Caller should hold the req_mutex if simultaneous accesses are possible */
 int ldap_open_defconn( LDAP *ld )
 {
-	if (( ld->ld_defconn = ldap_new_connection( ld, ld->ld_options.ldo_defludp, 1,1,0 )) == NULL )
-	{
+	ld->ld_defconn = ldap_new_connection( ld,
+		&ld->ld_options.ldo_defludp, 1, 1, NULL );
+
+	if( ld->ld_defconn == NULL ) {
 		ld->ld_errno = LDAP_SERVER_DOWN;
 		return -1;
 	}
 
 	++ld->ld_defconn->lconn_refcnt;	/* so it never gets closed/freed */
-
 	return 0;
 }
 
@@ -52,9 +66,11 @@ ldap_open( LDAP_CONST char *host, int port )
 	int rc;
 	LDAP		*ld;
 
-	Debug( LDAP_DEBUG_TRACE, "ldap_open\n", 0, 0, 0 );
+	Debug( LDAP_DEBUG_TRACE, "ldap_open(%s, %d)\n",
+		host, port, 0 );
 
-	if (( ld = ldap_init( host, port )) == NULL ) {
+	ld = ldap_init( host, port );
+	if ( ld == NULL ) {
 		return( NULL );
 	}
 
@@ -62,146 +78,152 @@ ldap_open( LDAP_CONST char *host, int port )
 
 	if( rc < 0 ) {
 		ldap_ld_free( ld, 0, NULL, NULL );
-		return( NULL );
+		ld = NULL;
 	}
 
-	Debug( LDAP_DEBUG_TRACE, "ldap_open successful, ld_host is %s\n",
-		( ld->ld_host == NULL ) ? "(null)" : ld->ld_host, 0, 0 );
+	Debug( LDAP_DEBUG_TRACE, "ldap_open: %s\n",
+		ld == NULL ? "succeeded" : "failed", 0, 0 );
 
-	return( ld );
+	return ld;
 }
 
 
-/*
- * ldap_init - initialize the LDAP library.  A magic cookie to be used for
- * future communication is returned on success, NULL on failure.
- * "host" may be a space-separated list of hosts or IP addresses
- *
- * Example:
- *	LDAP	*ld;
- *	ld = ldap_open( host, port );
- */
-LDAP *
-ldap_init( LDAP_CONST char *defhost, int defport )
-{
-	LDAP *ld;
-	int rc;
-
-	rc = ldap_create(&ld);
-	if ( rc != LDAP_SUCCESS )
-		return NULL;
-
-	if (defport != 0)
-		ld->ld_options.ldo_defport = defport;
-
-	if (defhost != NULL) {
-		rc = ldap_set_option(ld, LDAP_OPT_HOST_NAME, defhost);
-		if ( rc != LDAP_SUCCESS ) {
-			ldap_ld_free(ld, 1, NULL, NULL);
-			return NULL;
-		}
-	}
-
-	return( ld );
-}
 
 int
 ldap_create( LDAP **ldp )
 {
 	LDAP			*ld;
+	struct ldapoptions	*gopts;
 
 	*ldp = NULL;
-	if( ldap_int_global_options.ldo_valid != LDAP_INITIALIZED ) {
-		ldap_int_initialize();
+	/* Get pointer to global option structure */
+	if ( (gopts = LDAP_INT_GLOBAL_OPT()) == NULL) {
+		return LDAP_NO_MEMORY;
 	}
 
-	Debug( LDAP_DEBUG_TRACE, "ldap_init\n", 0, 0, 0 );
-
-#ifdef HAVE_WINSOCK2
-{	WORD wVersionRequested;
-	WSADATA wsaData;
- 
-	wVersionRequested = MAKEWORD( 2, 0 );
-	if ( WSAStartup( wVersionRequested, &wsaData ) != 0 ) {
-		/* Tell the user that we couldn't find a usable */
-		/* WinSock DLL.                                  */
-		return LDAP_LOCAL_ERROR;
+	/* Initialize the global options, if not already done. */
+	if( gopts->ldo_valid != LDAP_INITIALIZED ) {
+		ldap_int_initialize(gopts, NULL);
+		if ( gopts->ldo_valid != LDAP_INITIALIZED )
+			return LDAP_LOCAL_ERROR;
 	}
- 
-	/* Confirm that the WinSock DLL supports 2.0.*/
-	/* Note that if the DLL supports versions greater    */
-	/* than 2.0 in addition to 2.0, it will still return */
-	/* 2.0 in wVersion since that is the version we      */
-	/* requested.                                        */
- 
-	if ( LOBYTE( wsaData.wVersion ) != 2 ||
-		HIBYTE( wsaData.wVersion ) != 0 )
-	{
-	    /* Tell the user that we couldn't find a usable */
-	    /* WinSock DLL.                                  */
-	    WSACleanup( );
-	    return LDAP_LOCAL_ERROR; 
-	}
-}	/* The WinSock DLL is acceptable. Proceed. */
 
-#elif HAVE_WINSOCK
-{	WSADATA wsaData;
-	if ( WSAStartup( 0x0101, &wsaData ) != 0 ) {
-	    return LDAP_LOCAL_ERROR;
-	}
-}
-#endif
+	Debug( LDAP_DEBUG_TRACE, "ldap_create\n", 0, 0, 0 );
 
 	if ( (ld = (LDAP *) LDAP_CALLOC( 1, sizeof(LDAP) )) == NULL ) {
-	    WSACleanup( );
 		return( LDAP_NO_MEMORY );
 	}
    
 	/* copy the global options */
-	memcpy(&ld->ld_options, &ldap_int_global_options,
-		sizeof(ld->ld_options));
+	AC_MEMCPY(&ld->ld_options, gopts, sizeof(ld->ld_options));
 
 	ld->ld_valid = LDAP_VALID_SESSION;
 
 	/* but not pointers to malloc'ed items */
-	ld->ld_options.ldo_defludp = NULL;
 	ld->ld_options.ldo_sctrls = NULL;
 	ld->ld_options.ldo_cctrls = NULL;
+	ld->ld_options.ldo_tm_api = NULL;
+	ld->ld_options.ldo_tm_net = NULL;
+	ld->ld_options.ldo_defludp = NULL;
 
-	ld->ld_options.ldo_defludp =
-			ldap_url_duplist(ldap_int_global_options.ldo_defludp);
+#ifdef HAVE_CYRUS_SASL
+	ld->ld_options.ldo_def_sasl_mech = gopts->ldo_def_sasl_mech
+		? LDAP_STRDUP( gopts->ldo_def_sasl_mech ) : NULL;
+	ld->ld_options.ldo_def_sasl_realm = gopts->ldo_def_sasl_realm
+		? LDAP_STRDUP( gopts->ldo_def_sasl_realm ) : NULL;
+	ld->ld_options.ldo_def_sasl_authcid = gopts->ldo_def_sasl_authcid
+		? LDAP_STRDUP( gopts->ldo_def_sasl_authcid ) : NULL;
+	ld->ld_options.ldo_def_sasl_authzid = gopts->ldo_def_sasl_authzid
+		? LDAP_STRDUP( gopts->ldo_def_sasl_authzid ) : NULL;
+#endif
 
-	if ( ld->ld_options.ldo_defludp == NULL ) {
-		LDAP_FREE( (char*)ld );
-	    WSACleanup( );
-		return LDAP_NO_MEMORY;
-	}
+#ifdef HAVE_TLS
+	/* We explicitly inherit the SSL_CTX, don't need the names/paths. Leave
+	 * them empty to allow new SSL_CTX's to be created from scratch.
+	 */
+	memset( &ld->ld_options.ldo_tls_info, 0,
+		sizeof( ld->ld_options.ldo_tls_info ));
+	ld->ld_options.ldo_tls_ctx = NULL;
+#endif
 
-	if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) {
-		ldap_free_urllist( ld->ld_options.ldo_defludp );
-		LDAP_FREE( (char*) ld );
-	    WSACleanup( );
-		return LDAP_NO_MEMORY;
-	}
+	if ( gopts->ldo_tm_api &&
+		ldap_int_timeval_dup( &ld->ld_options.ldo_tm_api, gopts->ldo_tm_api ))
+		goto nomem;
 
-	ld->ld_lberoptions = LBER_USE_DER;
+	if ( gopts->ldo_tm_net &&
+		ldap_int_timeval_dup( &ld->ld_options.ldo_tm_net, gopts->ldo_tm_net ))
+		goto nomem;
+
+	if ( gopts->ldo_defludp ) {
+		ld->ld_options.ldo_defludp = ldap_url_duplist(gopts->ldo_defludp);
 
-#if defined( STR_TRANSLATION ) && defined( LDAP_DEFAULT_CHARSET )
-	ld->ld_lberoptions |= LBER_TRANSLATE_STRINGS;
-#if LDAP_CHARSET_8859 == LDAP_DEFAULT_CHARSET
-	ldap_set_string_translators( ld, ldap_8859_to_t61, ldap_t61_to_8859 );
-#endif /* LDAP_CHARSET_8859 == LDAP_DEFAULT_CHARSET */
-#endif /* STR_TRANSLATION && LDAP_DEFAULT_CHARSET */
+		if ( ld->ld_options.ldo_defludp == NULL ) goto nomem;
+	}
 
-	/* we'll assume we're talking version 2 for now */
-	ld->ld_version = LDAP_VERSION2;
+	if (( ld->ld_selectinfo = ldap_new_select_info()) == NULL ) goto nomem;
 
-	ber_pvt_sb_init( &(ld->ld_sb) );
+	ld->ld_lberoptions = LBER_USE_DER;
 
+	ld->ld_sb = ber_sockbuf_alloc( );
+	if ( ld->ld_sb == NULL ) goto nomem;
+
+#ifdef LDAP_R_COMPILE
+	ldap_pvt_thread_mutex_init( &ld->ld_req_mutex );
+	ldap_pvt_thread_mutex_init( &ld->ld_res_mutex );
+	ldap_pvt_thread_mutex_init( &ld->ld_conn_mutex );
+#endif
 	*ldp = ld;
 	return LDAP_SUCCESS;
+
+nomem:
+	ldap_free_select_info( ld->ld_selectinfo );
+	ldap_free_urllist( ld->ld_options.ldo_defludp );
+	LDAP_FREE( ld->ld_options.ldo_tm_net );
+	LDAP_FREE( ld->ld_options.ldo_tm_api );
+#ifdef HAVE_CYRUS_SASL
+	LDAP_FREE( ld->ld_options.ldo_def_sasl_authzid );
+	LDAP_FREE( ld->ld_options.ldo_def_sasl_authcid );
+	LDAP_FREE( ld->ld_options.ldo_def_sasl_realm );
+	LDAP_FREE( ld->ld_options.ldo_def_sasl_mech );
+#endif
+	LDAP_FREE( (char *)ld );
+	return LDAP_NO_MEMORY;
+}
+
+/*
+ * ldap_init - initialize the LDAP library.  A magic cookie to be used for
+ * future communication is returned on success, NULL on failure.
+ * "host" may be a space-separated list of hosts or IP addresses
+ *
+ * Example:
+ *	LDAP	*ld;
+ *	ld = ldap_init( host, port );
+ */
+LDAP *
+ldap_init( LDAP_CONST char *defhost, int defport )
+{
+	LDAP *ld;
+	int rc;
+
+	rc = ldap_create(&ld);
+	if ( rc != LDAP_SUCCESS )
+		return NULL;
+
+	if (defport != 0)
+		ld->ld_options.ldo_defport = defport;
+
+	if (defhost != NULL) {
+		rc = ldap_set_option(ld, LDAP_OPT_HOST_NAME, defhost);
+		if ( rc != LDAP_SUCCESS ) {
+			ldap_ld_free(ld, 1, NULL, NULL);
+			return NULL;
+		}
+	}
+
+	return( ld );
 }
 
+
 int
 ldap_initialize( LDAP **ldp, LDAP_CONST char *url )
 {
@@ -219,6 +241,10 @@ ldap_initialize( LDAP **ldp, LDAP_CONST char *url )
 			ldap_ld_free(ld, 1, NULL, NULL);
 			return rc;
 		}
+#ifdef LDAP_CONNECTIONLESS
+		if (ldap_is_ldapc_url(url))
+			LDAP_IS_UDP(ld) = 1;
+#endif
 	}
 
 	*ldp = ld;
@@ -226,58 +252,191 @@ ldap_initialize( LDAP **ldp, LDAP_CONST char *url )
 }
 
 int
-open_ldap_connection( LDAP *ld, Sockbuf *sb, LDAPURLDesc *srv,
-	char **krbinstancep, int async )
+ldap_int_open_connection(
+	LDAP *ld,
+	LDAPConn *conn,
+	LDAPURLDesc *srv,
+	int async )
 {
-	int 			rc = -1;
-	int port;
-	long addr;
+	int rc = -1;
+	char *host;
+	int port, proto;
+
+	Debug( LDAP_DEBUG_TRACE, "ldap_int_open_connection\n", 0, 0, 0 );
+
+	switch ( proto = ldap_pvt_url_scheme2proto( srv->lud_scheme ) ) {
+		case LDAP_PROTO_TCP:
+			port = srv->lud_port;
+
+			if ( srv->lud_host == NULL || *srv->lud_host == 0 ) {
+				host = NULL;
+			} else {
+				host = srv->lud_host;
+			}
+
+			if( !port ) {
+				if( strcmp(srv->lud_scheme, "ldaps") == 0 ) {
+					port = LDAPS_PORT;
+				} else {
+					port = LDAP_PORT;
+				}
+			}
+
+			rc = ldap_connect_to_host( ld, conn->lconn_sb,
+				proto, host, port, async );
+
+			if ( rc == -1 ) return rc;
+
+#ifdef LDAP_DEBUG
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
+				LBER_SBIOD_LEVEL_PROVIDER, (void *)"tcp_" );
+#endif
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_tcp,
+				LBER_SBIOD_LEVEL_PROVIDER, NULL );
 
-	Debug( LDAP_DEBUG_TRACE, "open_ldap_connection\n", 0, 0, 0 );
+			break;
 
-	port = srv->lud_port;
-	if (port == 0)
-		port = ld->ld_options.ldo_defport;
-	port = htons( (short) port );
+#ifdef LDAP_CONNECTIONLESS
+		case LDAP_PROTO_UDP:
+			port = srv->lud_port;
 
-	addr = 0;
-	if ( srv->lud_host == NULL )
-		addr = htonl( INADDR_LOOPBACK );
+			if ( srv->lud_host == NULL || *srv->lud_host == 0 ) {
+				host = NULL;
+			} else {
+				host = srv->lud_host;
+			}
 
-	rc = ldap_connect_to_host( ld, sb, srv->lud_host, addr, port, async );
-	if ( rc == -1 ) {
-		return( rc );
+			if( !port ) port = LDAP_PORT;
+
+			LDAP_IS_UDP(ld) = 1;
+			rc = ldap_connect_to_host( ld, conn->lconn_sb,
+				proto, host, port, async );
+
+			if ( rc == -1 ) return rc;
+#ifdef LDAP_DEBUG
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
+				LBER_SBIOD_LEVEL_PROVIDER, (void *)"udp_" );
+#endif
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_udp,
+				LBER_SBIOD_LEVEL_PROVIDER, NULL );
+
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_readahead,
+				LBER_SBIOD_LEVEL_PROVIDER, NULL );
+
+			break;
+#endif
+		case LDAP_PROTO_IPC:
+#ifdef LDAP_PF_LOCAL
+			/* only IPC mechanism supported is PF_LOCAL (PF_UNIX) */
+			rc = ldap_connect_to_path( ld, conn->lconn_sb,
+				srv->lud_host, async );
+			if ( rc == -1 ) return rc;
+#ifdef LDAP_DEBUG
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
+				LBER_SBIOD_LEVEL_PROVIDER, (void *)"ipc_" );
+#endif
+			ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_fd,
+				LBER_SBIOD_LEVEL_PROVIDER, NULL );
+
+			break;
+#endif /* LDAP_PF_LOCAL */
+		default:
+			return -1;
+			break;
 	}
-   
-   	ber_pvt_sb_set_io( sb, &ber_pvt_sb_io_tcp, NULL );
+
+#ifdef LDAP_DEBUG
+	ber_sockbuf_add_io( conn->lconn_sb, &ber_sockbuf_io_debug,
+		INT_MAX, (void *)"ldap_" );
+#endif
+
+#ifdef LDAP_CONNECTIONLESS
+	if( proto == LDAP_PROTO_UDP ) return 0;
+#endif
 
 #ifdef HAVE_TLS
-   	if ( ld->ld_options.ldo_tls_mode == LDAP_OPT_X_TLS_HARD 
-   		|| srv->lud_ldaps != 0 )
-   	{
-		/*
-		 * Fortunately, the lib uses blocking io...
-		 */
-		if ( ldap_pvt_tls_connect( sb, ld->ld_options.ldo_tls_ctx ) < 
-		     0 ) {
+	if (ld->ld_options.ldo_tls_mode == LDAP_OPT_X_TLS_HARD ||
+		strcmp( srv->lud_scheme, "ldaps" ) == 0 )
+	{
+		++conn->lconn_refcnt;	/* avoid premature free */
+
+		rc = ldap_int_tls_start( ld, conn, srv );
+
+		--conn->lconn_refcnt;
+
+		if (rc != LDAP_SUCCESS) {
 			return -1;
 		}
-		/* FIXME: hostname of server must be compared with name in
-		 * certificate....
-		 */
 	}
 #endif
-	if ( krbinstancep != NULL ) {
-#ifdef HAVE_KERBEROS
+
+#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
+	if ( conn->lconn_krbinstance == NULL ) {
 		char *c;
-		if (( *krbinstancep = ldap_host_connected_to( sb )) != NULL &&
-		    ( c = strchr( *krbinstancep, '.' )) != NULL ) {
+		conn->lconn_krbinstance = ldap_host_connected_to(
+			conn->lconn_sb, host );
+
+		if( conn->lconn_krbinstance != NULL && 
+		    ( c = strchr( conn->lconn_krbinstance, '.' )) != NULL ) {
 			*c = '\0';
 		}
-#else /* HAVE_KERBEROS */
-		krbinstancep = NULL;
-#endif /* HAVE_KERBEROS */
 	}
+#endif /* LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND */
 
 	return( 0 );
 }
+
+
+int
+ldap_open_internal_connection( LDAP **ldp, ber_socket_t *fdp )
+{
+	int rc;
+	LDAPConn *c;
+	LDAPRequest *lr;
+
+	rc = ldap_create( ldp );
+	if( rc != LDAP_SUCCESS ) {
+		*ldp = NULL;
+		return( rc );
+	}
+
+	/* Make it appear that a search request, msgid 0, was sent */
+	lr = (LDAPRequest *)LDAP_CALLOC( 1, sizeof( LDAPRequest ));
+	if( lr == NULL ) {
+		ldap_unbind_ext( *ldp, NULL, NULL );
+		*ldp = NULL;
+		return( LDAP_NO_MEMORY );
+	}
+	memset(lr, 0, sizeof( LDAPRequest ));
+	lr->lr_msgid = 0;
+	lr->lr_status = LDAP_REQST_INPROGRESS;
+	lr->lr_res_errno = LDAP_SUCCESS;
+	/* no mutex lock needed, we just created this ld here */
+	(*ldp)->ld_requests = lr;
+
+	/* Attach the passed socket as the *LDAP's connection */
+	c = ldap_new_connection( *ldp, NULL, 1, 0, NULL);
+	if( c == NULL ) {
+		ldap_unbind_ext( *ldp, NULL, NULL );
+		*ldp = NULL;
+		return( LDAP_NO_MEMORY );
+	}
+	ber_sockbuf_ctrl( c->lconn_sb, LBER_SB_OPT_SET_FD, fdp );
+#ifdef LDAP_DEBUG
+	ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_debug,
+		LBER_SBIOD_LEVEL_PROVIDER, (void *)"int_" );
+#endif
+	ber_sockbuf_add_io( c->lconn_sb, &ber_sockbuf_io_tcp,
+	  LBER_SBIOD_LEVEL_PROVIDER, NULL );
+	(*ldp)->ld_defconn = c;
+
+	/* Add the connection to the *LDAP's select pool */
+	ldap_mark_select_read( *ldp, c->lconn_sb );
+	ldap_mark_select_write( *ldp, c->lconn_sb );
+
+	/* Make this connection an LDAP V3 protocol connection */
+	rc = LDAP_VERSION3;
+	ldap_set_option( *ldp, LDAP_OPT_PROTOCOL_VERSION, &rc );
+
+	return( LDAP_SUCCESS );
+}