X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fbind.c;h=d7b1cf36ec52eb90781b3bfcdbee17c0294106eb;hb=30d946959ed8d046af2a9817a3fdc24a4e42d233;hp=f6800973a28e1f00e013bb1e255d2a0a183fee4d;hpb=2a746777991e89c73a757266d620c318104c5657;p=openldap

diff --git a/servers/slapd/bind.c b/servers/slapd/bind.c
index f6800973a2..d7b1cf36ec 100644
--- a/servers/slapd/bind.c
+++ b/servers/slapd/bind.c
@@ -1,6 +1,7 @@
 /* bind.c - decode an ldap bind operation and pass it to a backend db */
+/* $OpenLDAP$ */
 /*
- * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
  */
 
@@ -17,13 +18,17 @@
  */
 
 #include "portable.h"
+#include "slapi_common.h"
 
 #include <stdio.h>
 
 #include <ac/string.h>
 #include <ac/socket.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
+#include "slapi.h"
+
 
 int
 do_bind(
@@ -31,51 +36,55 @@ do_bind(
     Operation	*op
 )
 {
-	BerElement	*ber = op->o_ber;
-	ber_int_t		version;
+	BerElement *ber = op->o_ber;
+	ber_int_t version;
 	ber_tag_t method;
-	char		*mech;
-	char		*dn;
-	char *ndn;
-	ber_tag_t	tag;
-	int			rc = LDAP_SUCCESS;
-	struct berval	cred;
-	Backend		*be;
-
+	struct berval mech = { 0, NULL };
+	struct berval dn = { 0, NULL };
+	struct berval pdn = { 0, NULL };
+	struct berval ndn = { 0, NULL };
+	struct berval edn = { 0, NULL };
+	ber_tag_t tag;
+	int	rc = LDAP_SUCCESS;
+	const char *text;
+	struct berval cred = { 0, NULL };
+	Backend *be = NULL;
+
+	Slapi_PBlock *pb = op->o_pb;
+
+#ifdef NEW_LOGGING
+	LDAP_LOG( OPERATION, ENTRY, "do_bind: conn %d\n", conn->c_connid, 0, 0 );
+#else
 	Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
+#endif
 
-	dn = NULL;
-	ndn = NULL;
-	mech = NULL;
-	cred.bv_val = NULL;
-
-	ldap_pvt_thread_mutex_lock( &conn->c_mutex );
-
-	/* Force to connection to "anonymous" until bind succeeds.
-	 * This may need to be relocated or done on a case by case basis
-	 * to handle certain SASL mechanisms.
+	/*
+	 * Force to connection to "anonymous" until bind succeeds.
 	 */
+	ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+	if ( conn->c_sasl_bind_in_progress ) be = conn->c_authz_backend;
 
-	if ( conn->c_cdn != NULL ) {
-		free( conn->c_cdn );
-		conn->c_cdn = NULL;
-	}
-
-	if ( conn->c_dn != NULL ) {
-		free( conn->c_dn );
-		conn->c_dn = NULL;
+	/* log authorization identity demotion */
+	if ( conn->c_dn.bv_len ) {
+		Statslog( LDAP_DEBUG_STATS,
+			"conn=%lu op=%lu AUTHZ anonymous mech=implicit ssf=0",
+			op->o_connid, op->o_opid, 0, 0, 0 );
 	}
 
+	connection2anonymous( conn );
+	if ( conn->c_sasl_bind_in_progress ) conn->c_authz_backend = be;
 	ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 
-	if ( op->o_dn != NULL ) {
-		free( op->o_dn );
-		op->o_dn = ch_strdup( "" );
+	if ( op->o_dn.bv_val != NULL ) {
+		free( op->o_dn.bv_val );
+		op->o_dn.bv_val = ch_strdup( "" );
+		op->o_dn.bv_len = 0;
 	}
 
-	if ( op->o_ndn != NULL ) {
-		free( op->o_ndn );
-		op->o_ndn = ch_strdup( "" );
+	if ( op->o_ndn.bv_val != NULL ) {
+		free( op->o_ndn.bv_val );
+		op->o_ndn.bv_val = ch_strdup( "" );
+		op->o_ndn.bv_len = 0;
 	}
 
 	/*
@@ -93,44 +102,44 @@ do_bind(
 	 *	}
 	 *
 	 *	SaslCredentials ::= SEQUENCE {
-     *		mechanism           LDAPString,
-     *		credentials         OCTET STRING OPTIONAL
+	 *		mechanism	    LDAPString,
+	 *		credentials	    OCTET STRING OPTIONAL
 	 *	}
 	 */
 
-	tag = ber_scanf( ber, "{iat" /*}*/, &version, &dn, &method );
+	tag = ber_scanf( ber, "{imt" /*}*/, &version, &dn, &method );
 
 	if ( tag == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, ERR, 
+			"do_bind: conn %d  ber_scanf failed\n", conn->c_connid, 0, 0 );
+#else
 		Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 );
+#endif
 		send_ldap_disconnect( conn, op,
 			LDAP_PROTOCOL_ERROR, "decoding error" );
 		rc = -1;
 		goto cleanup;
 	}
 
-	ndn = ch_strdup( dn );
-
-	if ( dn_normalize_case( ndn ) == NULL ) {
-		Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n", dn, 0, 0 );
-		send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
-		    "invalid DN", NULL, NULL );
-		goto cleanup;
-	}
-
 	op->o_protocol = version;
 
 	if( method != LDAP_AUTH_SASL ) {
-		tag = ber_scanf( ber, /*{*/ "o}", &cred );
+		tag = ber_scanf( ber, /*{*/ "m}", &cred );
 
 	} else {
-		tag = ber_scanf( ber, "{a" /*}*/, &mech );
+		tag = ber_scanf( ber, "{o" /*}*/, &mech );
 
 		if ( tag != LBER_ERROR ) {
 			ber_len_t len;
 			tag = ber_peek_tag( ber, &len );
 
 			if ( tag == LDAP_TAG_LDAPCRED ) { 
-				tag = ber_scanf( ber, "o", &cred );
+				tag = ber_scanf( ber, "m", &cred );
+			} else {
+				tag = LDAP_TAG_LDAPCRED;
+				cred.bv_val = NULL;
+				cred.bv_len = 0;
 			}
 
 			if ( tag != LBER_ERROR ) {
@@ -142,116 +151,355 @@ do_bind(
 	if ( tag == LBER_ERROR ) {
 		send_ldap_disconnect( conn, op,
 			LDAP_PROTOCOL_ERROR,
-    		"decoding error" );
-		rc = -1;
+		"decoding error" );
+		rc = SLAPD_DISCONNECT;
 		goto cleanup;
 	}
 
 	if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, 
+			"do_bind: conn %d  get_ctrls failed\n", conn->c_connid, 0, 0 );
+#else
 		Debug( LDAP_DEBUG_ANY, "do_bind: get_ctrls failed\n", 0, 0, 0 );
+#endif
 		goto cleanup;
 	} 
 
+	rc = dnPrettyNormal( NULL, &dn, &pdn, &ndn );
+	if ( rc != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, 
+			"do_bind: conn %d  invalid dn (%s)\n", 
+			conn->c_connid, dn.bv_val, 0 );
+#else
+		Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n",
+			dn.bv_val, 0, 0 );
+#endif
+		send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+		    "invalid DN", NULL, NULL );
+		goto cleanup;
+	}
+
 	if( method == LDAP_AUTH_SASL ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION,	 DETAIL1, 
+			"do_sasl_bind: conn %d  dn (%s) mech %s\n", 
+			conn->c_connid, pdn.bv_val, mech.bv_val );
+#else
 		Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n",
-			dn, mech, NULL );
+			pdn.bv_val, mech.bv_val, NULL );
+#endif
+
 	} else {
-		Debug( LDAP_DEBUG_TRACE, "do_bind: version=%ld dn=\"%s\" method=%ld\n",
-			(unsigned long) version, dn, (unsigned long) method );
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, DETAIL1, 
+			"do_bind: version=%ld dn=\"%s\" method=%ld\n",
+			(unsigned long) version, pdn.bv_val, (unsigned long)method );
+#else
+		Debug( LDAP_DEBUG_TRACE,
+			"do_bind: version=%ld dn=\"%s\" method=%ld\n",
+			(unsigned long) version,
+			pdn.bv_val, (unsigned long) method );
+#endif
 	}
 
-	Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d BIND dn=\"%s\" method=%ld\n",
-	    op->o_connid, op->o_opid, ndn, (unsigned long) method, 0 );
+	Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu BIND dn=\"%s\" method=%ld\n",
+	    op->o_connid, op->o_opid, pdn.bv_val, (unsigned long) method, 0 );
 
 	if ( version < LDAP_VERSION_MIN || version > LDAP_VERSION_MAX ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, 
+			"do_bind: conn %d  unknown version = %ld\n",
+			conn->c_connid, (unsigned long)version, 0 );
+#else
 		Debug( LDAP_DEBUG_ANY, "do_bind: unknown version=%ld\n",
 			(unsigned long) version, 0, 0 );
+#endif
+		send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
+			NULL, "requested protocol version not supported", NULL, NULL );
+		goto cleanup;
+
+	} else if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
+		version < LDAP_VERSION3 )
+	{
 		send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
-			NULL, "version not supported", NULL, NULL );
+			NULL, "requested protocol version not allowed", NULL, NULL );
 		goto cleanup;
 	}
 
+	/* we set connection version regardless of whether bind succeeds
+	 * or not.
+	 */
+	ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+	conn->c_protocol = version;
+	ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+
+	/* check for inappropriate controls */
+	if( get_manageDSAit( op ) == SLAP_CRITICAL_CONTROL ) {
+		send_ldap_result( conn, op,
+			rc = LDAP_UNAVAILABLE_CRITICAL_EXTENSION,
+			NULL, "manageDSAit control inappropriate",
+			NULL, NULL );
+		goto cleanup;
+	}
+
+	/* Set the bindop for the benefit of in-directory SASL lookups */
+	conn->c_sasl_bindop = op;
+
 	if ( method == LDAP_AUTH_SASL ) {
+		slap_ssf_t ssf = 0;
+
 		if ( version < LDAP_VERSION3 ) {
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, INFO, 
+				"do_bind: conn %d  sasl with LDAPv%ld\n",
+				conn->c_connid, (unsigned long)version , 0 );
+#else
 			Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%ld\n",
 				(unsigned long) version, 0, 0 );
+#endif
 			send_ldap_disconnect( conn, op,
-				LDAP_PROTOCOL_ERROR, "sasl bind requires LDAPv3" );
-			rc = -1;
+				LDAP_PROTOCOL_ERROR, "SASL bind requires LDAPv3" );
+			rc = SLAPD_DISCONNECT;
 			goto cleanup;
 		}
 
-		if( mech == NULL || *mech == '\0' ) {
+		if( mech.bv_len == 0 ) {
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, INFO, 
+				   "do_bind: conn %d  no SASL mechanism provided\n",
+				   conn->c_connid, 0, 0 );
+#else
 			Debug( LDAP_DEBUG_ANY,
 				"do_bind: no sasl mechanism provided\n",
 				0, 0, 0 );
+#endif
 			send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
-				NULL, "no sasl mechanism provided", NULL, NULL );
+				NULL, "no SASL mechanism provided", NULL, NULL );
 			goto cleanup;
 		}
 
-		if( !charray_inlist( supportedSASLMechanisms, mech ) ) {
-			Debug( LDAP_DEBUG_ANY,
-				"do_bind: sasl mechanism=\"%s\" not supported.\n",
-				mech, 0, 0 );
-			send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
-				NULL, "sasl mechanism not supported", NULL, NULL );
+		/* check restrictions */
+		rc = backend_check_restrictions( NULL, conn, op, &mech, &text );
+		if( rc != LDAP_SUCCESS ) {
+			send_ldap_result( conn, op, rc,
+				NULL, text, NULL, NULL );
 			goto cleanup;
 		}
 
 		ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+		if ( conn->c_sasl_bind_in_progress ) {
+			if( !bvmatch( &conn->c_sasl_bind_mech, &mech ) ) {
+				/* mechanism changed between bind steps */
+				slap_sasl_reset(conn);
+			}
+		} else {
+			conn->c_sasl_bind_mech = mech;
+			mech.bv_val = NULL;
+			mech.bv_len = 0;
+		}
+		ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+
+		rc = slap_sasl_bind( conn, op,
+			&pdn, &ndn,
+			&cred, &edn, &ssf );
+
+		ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+		if( rc == LDAP_SUCCESS ) {
+			conn->c_dn = edn;
+			if( edn.bv_len != 0 ) {
+				/* edn is always normalized already */
+				ber_dupbv( &conn->c_ndn, &conn->c_dn );
+			}
+			conn->c_authmech = conn->c_sasl_bind_mech;
+			conn->c_sasl_bind_mech.bv_val = NULL;
+			conn->c_sasl_bind_mech.bv_len = 0;
+			conn->c_sasl_bind_in_progress = 0;
+
+			conn->c_sasl_ssf = ssf;
+			if( ssf > conn->c_ssf ) {
+				conn->c_ssf = ssf;
+			}
 
-		if ( conn->c_authmech != NULL ) {
-			assert( conn->c_bind_in_progress );
-
-			if((strcmp(conn->c_authmech, mech) != 0)) {
-				/* mechanism changed, cancel in progress bind */
-				conn->c_bind_in_progress = 0;
-				if( conn->c_authstate != NULL ) {
-					free(conn->c_authstate);
-					conn->c_authstate = NULL;
-				}
-				free(conn->c_authmech);
-				conn->c_authmech = NULL;
+			if( conn->c_dn.bv_len != 0 ) {
+				ber_len_t max = sockbuf_max_incoming_auth;
+				ber_sockbuf_ctrl( conn->c_sb,
+					LBER_SB_OPT_SET_MAX_INCOMING, &max );
 			}
 
-#ifdef LDAP_DEBUG
-		} else {
-			assert( !conn->c_bind_in_progress );
-			assert( conn->c_authmech == NULL );
-			assert( conn->c_authstate == NULL );
+			/* log authorization identity */
+			Statslog( LDAP_DEBUG_STATS,
+				"conn=%lu op=%lu AUTHZ dn=\"%s\" mech=%s ssf=%d\n",
+				op->o_connid, op->o_opid,
+				conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
+				conn->c_authmech.bv_val, ssf );
+
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, DETAIL1, 
+				"do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
+				conn->c_authmech.bv_val,
+				conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
+				ssf );
+#else
+			Debug( LDAP_DEBUG_TRACE,
+				"do_bind: SASL/%s bind: dn=\"%s\" ssf=%d\n",
+				conn->c_authmech.bv_val,
+				conn->c_dn.bv_val ? conn->c_dn.bv_val : "<empty>",
+				ssf );
 #endif
+
+		} else if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) {
+			conn->c_sasl_bind_in_progress = 1;
+
+		} else {
+			if ( conn->c_sasl_bind_mech.bv_val ) {
+				free( conn->c_sasl_bind_mech.bv_val );
+				conn->c_sasl_bind_mech.bv_val = NULL;
+				conn->c_sasl_bind_mech.bv_len = 0;
+			}
+			conn->c_sasl_bind_in_progress = 0;
 		}
+		ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+
+		goto cleanup;
 
 	} else {
+		/* Not SASL, cancel any in-progress bind */
 		ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 
-		if ( conn->c_authmech != NULL ) {
-			assert( conn->c_bind_in_progress );
+		if ( conn->c_sasl_bind_mech.bv_val != NULL ) {
+			free(conn->c_sasl_bind_mech.bv_val);
+			conn->c_sasl_bind_mech.bv_val = NULL;
+			conn->c_sasl_bind_mech.bv_len = 0;
+		}
+		conn->c_sasl_bind_in_progress = 0;
+
+		slap_sasl_reset( conn );
+		ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+	}
 
-			/* cancel in progress bind */
-			conn->c_bind_in_progress = 0;
+	if ( method == LDAP_AUTH_SIMPLE ) {
+		/* accept "anonymous" binds */
+		if ( cred.bv_len == 0 || ndn.bv_len == 0 ) {
+			rc = LDAP_SUCCESS;
+			text = NULL;
+
+			if( cred.bv_len &&
+				!( global_allows & SLAP_ALLOW_BIND_ANON_CRED ))
+			{
+				/* cred is not empty, disallow */
+				rc = LDAP_INVALID_CREDENTIALS;
+
+			} else if ( ndn.bv_len &&
+				!( global_allows & SLAP_ALLOW_BIND_ANON_DN ))
+			{
+				/* DN is not empty, disallow */
+				rc = LDAP_UNWILLING_TO_PERFORM;
+				text = "unwilling to allow anonymous bind with non-empty DN";
+
+			} else if ( global_disallows & SLAP_DISALLOW_BIND_ANON ) {
+				/* disallow */
+				rc = LDAP_INAPPROPRIATE_AUTH;
+				text = "anonymous bind disallowed";
 
-			if( conn->c_authstate != NULL ) {
-				free(conn->c_authstate);
-				conn->c_authstate = NULL;
+			} else {
+				rc = backend_check_restrictions( NULL, conn, op,
+					&mech, &text );
 			}
-			free(conn->c_authmech);
-			conn->c_authmech = NULL;
+
+			/*
+			 * we already forced connection to "anonymous",
+			 * just need to send success
+			 */
+			send_ldap_result( conn, op, rc,
+				NULL, text, NULL, NULL );
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, DETAIL1, 
+				   "do_bind: conn %d  v%d anonymous bind\n",
+				   conn->c_connid, version , 0 );
+#else
+			Debug( LDAP_DEBUG_TRACE, "do_bind: v%d anonymous bind\n",
+				version, 0, 0 );
+#endif
+			goto cleanup;
+
+		} else if ( global_disallows & SLAP_DISALLOW_BIND_SIMPLE ) {
+			/* disallow simple authentication */
+			rc = LDAP_UNWILLING_TO_PERFORM;
+			text = "unwilling to perform simple authentication";
+
+			send_ldap_result( conn, op, rc,
+				NULL, text, NULL, NULL );
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, INFO, 
+				   "do_bind: conn %d  v%d simple bind(%s) disallowed\n",
+				   conn->c_connid, version, ndn.bv_val );
+#else
+			Debug( LDAP_DEBUG_TRACE,
+				"do_bind: v%d simple bind(%s) disallowed\n",
+				version, ndn.bv_val, 0 );
+#endif
+			goto cleanup;
+
+		} else if (( global_disallows & SLAP_DISALLOW_BIND_SIMPLE_UNPROTECTED )
+			&& ( op->o_ssf <= 1 ))
+		{
+			rc = LDAP_CONFIDENTIALITY_REQUIRED;
+			text = "unwilling to perform simple authentication "
+				"without confidentilty protection";
+
+			send_ldap_result( conn, op, rc,
+				NULL, text, NULL, NULL );
+
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, INFO, "do_bind: conn %d  "
+				"v%d unprotected simple bind(%s) disallowed\n",
+				conn->c_connid, version, ndn.bv_val );
+#else
+			Debug( LDAP_DEBUG_TRACE,
+				"do_bind: v%d unprotected simple bind(%s) disallowed\n",
+				version, ndn.bv_val, 0 );
+#endif
+			goto cleanup;
 		}
-	}
 
-	conn->c_protocol = version;
-	ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+#ifdef LDAP_API_FEATURE_X_OPENLDAP_V2_KBIND
+	} else if ( method == LDAP_AUTH_KRBV41 || method == LDAP_AUTH_KRBV42 ) {
+		if ( global_disallows & SLAP_DISALLOW_BIND_KRBV4 ) {
+			/* disallow simple authentication */
+			rc = LDAP_UNWILLING_TO_PERFORM;
+			text = "unwilling to perform Kerberos V4 bind";
+
+			send_ldap_result( conn, op, rc,
+				NULL, text, NULL, NULL );
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, DETAIL1, 
+				   "do_bind: conn %d  v%d Kerberos V4 bind\n",
+				   conn->c_connid, version , 0 );
+#else
+			Debug( LDAP_DEBUG_TRACE, "do_bind: v%d Kerberos V4 bind\n",
+				version, 0, 0 );
+#endif
+			goto cleanup;
+		}
+#endif
 
-	/* accept null binds */
-	if ( ndn == NULL || *ndn == '\0' ) {
-		/*
-		 * we already forced connection to "anonymous", we just
-		 * need to send success
-		 */
-		send_ldap_result( conn, op, LDAP_SUCCESS,
-			NULL, NULL, NULL, NULL );
+	} else {
+		rc = LDAP_AUTH_METHOD_NOT_SUPPORTED;
+		text = "unknown authentication method";
+
+		send_ldap_result( conn, op, rc,
+			NULL, text, NULL, NULL );
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, 
+			   "do_bind: conn %ld  v%d unknown authentication method (%ld)\n",
+			   conn->c_connid, version, method );
+#else
+		Debug( LDAP_DEBUG_TRACE,
+			"do_bind: v%d unknown authentication method (%ld)\n",
+			version, method, 0 );
+#endif
 		goto cleanup;
 	}
 
@@ -261,16 +509,18 @@ do_bind(
 	 * if we don't hold it.
 	 */
 
-	if ( (be = select_backend( ndn )) == NULL ) {
-		if ( cred.bv_len == 0 ) {
-			send_ldap_result( conn, op, LDAP_SUCCESS,
-				NULL, NULL, NULL, NULL );
+	if ( (be = select_backend( &ndn, 0, 0 )) == NULL ) {
+		if ( default_referral ) {
+			BerVarray ref = referral_rewrite( default_referral,
+				NULL, &pdn, LDAP_SCOPE_DEFAULT );
 
-		} else if ( default_referral ) {
 			send_ldap_result( conn, op, rc = LDAP_REFERRAL,
-				NULL, NULL, default_referral, NULL );
+				NULL, NULL, ref ? ref : default_referral, NULL );
+
+			ber_bvarray_free( ref );
 
 		} else {
+			/* noSuchObject is not allowed to be returned by bind */
 			send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
 				NULL, NULL, NULL, NULL );
 		}
@@ -278,28 +528,126 @@ do_bind(
 		goto cleanup;
 	}
 
+	/* check restrictions */
+	rc = backend_check_restrictions( be, conn, op, NULL, &text );
+	if( rc != LDAP_SUCCESS ) {
+		send_ldap_result( conn, op, rc,
+			NULL, text, NULL, NULL );
+		goto cleanup;
+	}
+
+#if defined( LDAP_SLAPI )
+	slapi_x_backend_set_pb( pb, be );
+	slapi_x_connection_set_pb( pb, conn );
+	slapi_x_operation_set_pb( pb, op );
+	slapi_pblock_set( pb, SLAPI_BIND_TARGET, (void *)dn.bv_val );
+	slapi_pblock_set( pb, SLAPI_BIND_METHOD, (void *)method );
+	slapi_pblock_set( pb, SLAPI_BIND_CREDENTIALS, (void *)&cred );
+	slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)(1) );
+
+	rc = doPluginFNs( be, SLAPI_PLUGIN_PRE_BIND_FN, pb );
+	if ( rc != SLAPI_BIND_SUCCESS ) {
+		/*
+		 * Binding is a special case for SLAPI plugins. It is
+		 * possible for a bind plugin to be successful *and*
+		 * abort further processing; this means it has handled
+		 * a bind request authoritatively. If we have reached
+		 * here, a result has been sent to the client (XXX
+		 * need to check with Sun whether SLAPI_BIND_ANONYMOUS
+		 * means a result has been sent).
+		 */
+		int ldapRc;
+
+		if ( slapi_pblock_get( pb, SLAPI_RESULT_CODE, (void *)&ldapRc ) != 0 )
+			ldapRc = LDAP_OPERATIONS_ERROR;
+
+		edn.bv_val = NULL;
+		edn.bv_len = 0;
+		if ( rc != SLAPI_BIND_FAIL && ldapRc == LDAP_SUCCESS ) {
+			/* Set the new connection DN. */
+			if ( rc != SLAPI_BIND_ANONYMOUS ) {
+				slapi_pblock_get( pb, SLAPI_CONN_DN, (void *)&edn.bv_val );
+			}
+			rc = dnPrettyNormal( NULL, &edn, &pdn, &ndn );
+			ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+			conn->c_dn = pdn;
+			conn->c_ndn = ndn;
+			pdn.bv_val = NULL;
+			pdn.bv_len = 0;
+			ndn.bv_val = NULL;
+			ndn.bv_len = 0;
+			if ( conn->c_dn.bv_len != 0 ) {
+				ber_len_t max = sockbuf_max_incoming_auth;
+				ber_sockbuf_ctrl( conn->c_sb, LBER_SB_OPT_SET_MAX_INCOMING, &max );
+			}
+			/* log authorization identity */
+			Statslog( LDAP_DEBUG_STATS,
+				"conn=%lu op=%lu AUTHZ dn=\"%s\" mech=simple (SLAPI) ssf=0\n",
+				op->o_connid, op->o_opid,
+				conn->c_dn.bv_val, 0, 0 );
+			ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+		}
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, "do_bind: Bind preoperation plugin returned %d\n",
+				rc, 0, 0);
+#else
+		Debug(LDAP_DEBUG_TRACE, "do_bind: Bind preoperation plugin returned %d.\n",
+				rc, 0, 0);
+#endif
+		rc = ldapRc;
+		goto cleanup;
+	}
+#endif /* defined( LDAP_SLAPI ) */
+
 	if ( be->be_bind ) {
-		/* alias suffix */
-		char *edn;
+		int ret;
 
 		/* deref suffix alias if appropriate */
-		ndn = suffix_alias( be, ndn );
+		suffix_alias( be, &ndn );
+
+		ret = (*be->be_bind)( be, conn, op,
+			&pdn, &ndn, method, &cred, &edn );
 
-		if ( (*be->be_bind)( be, conn, op, ndn, method, mech, &cred, &edn ) == 0 ) {
+		if ( ret == 0 ) {
 			ldap_pvt_thread_mutex_lock( &conn->c_mutex );
 
-			conn->c_cdn = dn;
-			dn = NULL;
+			if( conn->c_authz_backend == NULL ) {
+				conn->c_authz_backend = be;
+			}
 
-			if(edn != NULL) {
+			if(edn.bv_len) {
 				conn->c_dn = edn;
 			} else {
-				conn->c_dn = ndn;
-				ndn = NULL;
+				conn->c_dn = pdn;
+				pdn.bv_val = NULL;
+				pdn.bv_len = 0;
+			}
+
+			conn->c_ndn = ndn;
+			ndn.bv_val = NULL;
+			ndn.bv_len = 0;
+
+			if( conn->c_dn.bv_len != 0 ) {
+				ber_len_t max = sockbuf_max_incoming_auth;
+				ber_sockbuf_ctrl( conn->c_sb,
+					LBER_SB_OPT_SET_MAX_INCOMING, &max );
 			}
 
-			Debug( LDAP_DEBUG_TRACE, "do_bind: bound \"%s\" to \"%s\"\n",
-	    		conn->c_cdn, conn->c_dn, method );
+			/* log authorization identity */
+			Statslog( LDAP_DEBUG_STATS,
+				"conn=%lu op=%lu AUTHZ dn=\"%s\" mech=simple ssf=0\n",
+				op->o_connid, op->o_opid,
+				conn->c_dn.bv_val, conn->c_authmech.bv_val, 0 );
+
+#ifdef NEW_LOGGING
+			LDAP_LOG( OPERATION, DETAIL1, 
+				"do_bind: v%d bind: \"%s\" to \"%s\" \n",
+				version, conn->c_dn.bv_val, conn->c_dn.bv_val );
+#else
+			Debug( LDAP_DEBUG_TRACE,
+				"do_bind: v%d bind: \"%s\" to \"%s\"\n",
+				version, dn.bv_val, conn->c_dn.bv_val );
+#endif
 
 			ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
 
@@ -307,27 +655,39 @@ do_bind(
 			send_ldap_result( conn, op, LDAP_SUCCESS,
 				NULL, NULL, NULL, NULL );
 
-		} else if (edn != NULL) {
-			free( edn );
+		} else if (edn.bv_val != NULL) {
+			free( edn.bv_val );
 		}
 
 	} else {
 		send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
-			NULL, "Function not implemented", NULL, NULL );
+			NULL, "operation not supported within namingContext",
+			NULL, NULL );
 	}
 
-cleanup:
-	if( dn != NULL ) {
-		free( dn );
+#if defined( LDAP_SLAPI )
+	if ( doPluginFNs( be, SLAPI_PLUGIN_POST_BIND_FN, pb ) != 0 ) {
+#ifdef NEW_LOGGING
+		LDAP_LOG( OPERATION, INFO, "do_bind: Bind postoperation plugins failed\n",
+				0, 0, 0);
+#else
+		Debug(LDAP_DEBUG_TRACE, "do_bind: Bind postoperation plugins failed.\n",
+				0, 0, 0);
+#endif
 	}
-	if( ndn != NULL ) {
-		free( ndn );
+#endif /* defined( LDAP_SLAPI ) */
+
+cleanup:
+	conn->c_sasl_bindop = NULL;
+
+	if( pdn.bv_val != NULL ) {
+		free( pdn.bv_val );
 	}
-	if ( mech != NULL ) {
-		free( mech );
+	if( ndn.bv_val != NULL ) {
+		free( ndn.bv_val );
 	}
-	if ( cred.bv_val != NULL ) {
-		free( cred.bv_val );
+	if ( mech.bv_val != NULL ) {
+		free( mech.bv_val );
 	}
 
 	return rc;