/* bind.c - decode an ldap bind operation and pass it to a backend db */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
/*
* Copyright (c) 1995 Regents of the University of Michigan.
#include <ac/string.h>
#include <ac/socket.h>
+#include "ldap_pvt.h"
#include "slap.h"
-char *supportedSASLMechanisms[] = {
- "X-CRAM-MD5",
- "X-DIGEST-MD5",
- NULL
-};
-
int
do_bind(
Connection *conn,
ber_int_t version;
ber_tag_t method;
char *mech;
- char *cdn, *ndn;
+ char *dn;
+ char *ndn;
ber_tag_t tag;
int rc = LDAP_SUCCESS;
+ const char *text;
struct berval cred;
Backend *be;
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY, "do_bind: conn %d\n", conn->c_connid ));
+#else
Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 );
+#endif
- cdn = NULL;
+ 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.
*/
-
- 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;
- }
-
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ connection2anonymous( conn );
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
if ( op->o_dn != NULL ) {
* }
*
* SaslCredentials ::= SEQUENCE {
- * mechanism LDAPString,
- * credentials OCTET STRING OPTIONAL
+ * mechanism LDAPString,
+ * credentials OCTET STRING OPTIONAL
* }
*/
- tag = ber_scanf( ber, "{iat" /*}*/, &version, &cdn, &method );
+ tag = ber_scanf( ber, "{iat" /*}*/, &version, &dn, &method );
if ( tag == LBER_ERROR ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
+ "do_bind: conn %d ber_scanf failed\n", conn->c_connid ));
+#else
Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 );
- send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL,
- "decoding error" );
+#endif
+ send_ldap_disconnect( conn, op,
+ LDAP_PROTOCOL_ERROR, "decoding error" );
+ rc = -1;
goto cleanup;
}
if ( tag == LDAP_TAG_LDAPCRED ) {
tag = ber_scanf( ber, "o", &cred );
+ } else {
+ tag = LDAP_TAG_LDAPCRED;
+ cred.bv_val = NULL;
+ cred.bv_len = 0;
}
if ( tag != LBER_ERROR ) {
}
if ( tag == LBER_ERROR ) {
- send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL,
- "decoding error" );
+ send_ldap_disconnect( conn, op,
+ LDAP_PROTOCOL_ERROR,
+ "decoding error" );
+ rc = SLAPD_DISCONNECT;
goto cleanup;
}
if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+ "do_bind: conn %d get_ctrls failed\n", conn->c_connid ));
+#else
Debug( LDAP_DEBUG_ANY, "do_bind: get_ctrls failed\n", 0, 0, 0 );
+#endif
goto cleanup;
}
+ ndn = ch_strdup( dn );
+
+ if ( dn_normalize( ndn ) == NULL ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+ "do_bind: conn %d invalid dn (%s)\n", conn->c_connid, dn ));
+#else
+ Debug( LDAP_DEBUG_ANY, "bind: invalid dn (%s)\n", dn, 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", LDAP_LEVEL_DETAIL1,
+ "do_sasl_bind: conn %d dn (%s) mech %s\n", conn->c_connid,
+ dn, mech ));
+#else
Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n",
- cdn, mech, NULL );
+ dn, mech, NULL );
+#endif
} else {
- Debug( LDAP_DEBUG_TRACE, "do_bind: version %d dn (%s) method %d\n",
- version, cdn, method );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
+ "do_bind: conn %d version=%ld dn=\"%s\" method=%ld\n",
+ conn->c_connid, (unsigned long) version, dn, (unsigned long)method ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "do_bind: version=%ld dn=\"%s\" method=%ld\n",
+ (unsigned long) version, dn, (unsigned long) method );
+#endif
}
- ndn = dn_normalize_case( ch_strdup( cdn ) );
-
- Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d BIND dn=\"%s\" method=%d\n",
- conn->c_connid, op->o_opid, ndn, method, 0 );
+ 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 );
if ( version < LDAP_VERSION_MIN || version > LDAP_VERSION_MAX ) {
- Debug( LDAP_DEBUG_ANY, "unknown version %d\n", version, 0, 0 );
- send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL,
- "version not supported" );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+ "do_bind: conn %d unknown version = %ld\n",
+ conn->c_connid, (unsigned long)version ));
+#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_disallows & SLAP_DISALLOW_BIND_V2 ) &&
+ version < LDAP_VERSION3 )
+ {
+ send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR,
+ 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 );
+
if ( method == LDAP_AUTH_SASL ) {
+ char *edn;
+ slap_ssf_t ssf = 0;
+
if ( version < LDAP_VERSION3 ) {
- Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%d\n",
- version, 0, 0 );
- send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL,
- "sasl bind requires LDAPv3" );
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+ "do_bind: conn %d sasl with LDAPv%ld\n",
+ conn->c_connid, (unsigned long)version ));
+#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 = SLAPD_DISCONNECT;
goto cleanup;
}
if( mech == NULL || *mech == '\0' ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
+ "do_bind: conn %d no SASL mechanism provided\n",
+ conn->c_connid ));
+#else
Debug( LDAP_DEBUG_ANY,
"do_bind: no sasl mechanism provided\n",
- version, 0, 0 );
+ 0, 0, 0 );
+#endif
send_ldap_result( conn, op, rc = LDAP_AUTH_METHOD_NOT_SUPPORTED,
- NULL, "no sasl mechanism provided" );
+ 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" );
+ /* 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((strcmp(conn->c_sasl_bind_mech, mech) != 0)) {
+ /* mechanism changed between bind steps */
+ slap_sasl_reset(conn);
+ }
+ } else {
+ conn->c_sasl_bind_mech = mech;
+ mech = NULL;
+ }
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
- 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;
+ edn = NULL;
+ rc = slap_sasl_bind( conn, op, dn, ndn, &cred, &edn, &ssf );
+
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ if( rc == LDAP_SUCCESS ) {
+ conn->c_dn = edn;
+ conn->c_authmech = conn->c_sasl_bind_mech;
+ conn->c_sasl_bind_mech = NULL;
+ conn->c_sasl_bind_in_progress = 0;
+
+ conn->c_sasl_ssf = ssf;
+ if( ssf > conn->c_ssf ) {
+ conn->c_ssf = ssf;
+ }
+
+ if( conn->c_dn != NULL ) {
+ ber_len_t max = sockbuf_max_incoming;
+ ber_sockbuf_ctrl( conn->c_sb,
+ LBER_SB_OPT_SET_MAX_INCOMING, &max );
}
-#ifdef LDAP_DEBUG
+ } else if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) {
+ conn->c_sasl_bind_in_progress = 1;
+
} else {
- assert( !conn->c_bind_in_progress );
- assert( conn->c_authmech == NULL );
- assert( conn->c_authstate == NULL );
-#endif
+ if ( conn->c_sasl_bind_mech ) {
+ free( conn->c_sasl_bind_mech );
+ conn->c_sasl_bind_mech = NULL;
+ }
+ 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 != NULL ) {
+ free(conn->c_sasl_bind_mech);
+ conn->c_sasl_bind_mech = NULL;
+ }
+ conn->c_sasl_bind_in_progress = 0;
- /* cancel in progress bind */
- conn->c_bind_in_progress = 0;
+ slap_sasl_reset( conn );
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+ }
- if( conn->c_authstate != NULL ) {
- free(conn->c_authstate);
- conn->c_authstate = NULL;
+ if ( method == LDAP_AUTH_SIMPLE ) {
+ /* accept "anonymous" binds */
+ if ( cred.bv_len == 0 || ndn == NULL || *ndn == '\0' ) {
+ rc = LDAP_SUCCESS;
+ text = NULL;
+
+ if( cred.bv_len &&
+ ( global_disallows & SLAP_DISALLOW_BIND_ANON_CRED ))
+ {
+ /* cred is not empty, disallow */
+ rc = LDAP_INVALID_CREDENTIALS;
+
+ } else if ( ndn != NULL && *ndn != '\0' &&
+ ( global_disallows & SLAP_DISALLOW_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";
+
+ } 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", LDAP_LEVEL_DETAIL1,
+ "do_bind: conn %d v%d anonymous bind\n",
+ conn->c_connid, version ));
+#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", LDAP_LEVEL_INFO,
+ "do_bind: conn %d v%d simple bind(%s) disallowed\n",
+ conn->c_connid, version, ndn ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "do_bind: v%d simple bind(%s) disallowed\n",
+ version, ndn, 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", LDAP_LEVEL_DETAIL1,
+ "do_bind: conn %d v%d Kerberos V4 bind\n",
+ conn->c_connid, version ));
+#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 );
+ } 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", LDAP_LEVEL_INFO,
+ "do_bind: conn %d v%d unknown authentication method (%d)\n",
+ conn->c_connid, version, method ));
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "do_bind: v%d unknown authentication method (%d)\n",
+ version, method, 0 );
+#endif
goto cleanup;
}
* 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 );
+ if ( (be = select_backend( ndn, 0 )) == NULL ) {
+ if ( default_referral ) {
+ struct berval **ref = referral_rewrite( default_referral,
+ NULL, dn, LDAP_SCOPE_DEFAULT );
+
+ send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+ NULL, NULL, ref ? ref : default_referral, NULL );
- } else if ( default_referral && *default_referral ) {
- send_ldap_result( conn, op, rc = LDAP_PARTIAL_RESULTS,
- NULL, default_referral );
+ ber_bvecfree( ref );
} else {
+ /* noSuchObject is not allowed to be returned by bind */
send_ldap_result( conn, op, rc = LDAP_INVALID_CREDENTIALS,
- NULL, default_referral );
+ NULL, NULL, NULL, NULL );
}
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;
+ }
+
+ conn->c_authz_backend = be;
+
if ( be->be_bind ) {
+ int ret;
/* alias suffix */
- char *edn;
+ char *edn = NULL;
- ndn = suffixAlias( ndn, op, be );
+ /* deref suffix alias if appropriate */
+ ndn = suffix_alias( be, ndn );
- if ( (*be->be_bind)( be, conn, op, ndn, method, mech, &cred, &edn ) == 0 ) {
+ ret = (*be->be_bind)( be, conn, op, dn, ndn,
+ method, &cred, &edn );
+
+ if ( ret == 0 ) {
ldap_pvt_thread_mutex_lock( &conn->c_mutex );
- conn->c_cdn = cdn;
- cdn = NULL;
+ conn->c_cdn = dn;
+ dn = NULL;
if(edn != NULL) {
conn->c_dn = edn;
ndn = NULL;
}
- Debug( LDAP_DEBUG_TRACE, "do_bind: bound \"%s\" to \"%s\"\n",
- conn->c_cdn, conn->c_dn, method );
+ if( conn->c_dn != NULL ) {
+ ber_len_t max = sockbuf_max_incoming;
+ ber_sockbuf_ctrl( conn->c_sb,
+ LBER_SB_OPT_SET_MAX_INCOMING, &max );
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
+ "do_bind: conn %d v%d bind: \"%s\" to \"%s\" \n",
+ conn->c_connid, version, conn->c_cdn, conn->c_dn ));
+#else
+ Debug( LDAP_DEBUG_TRACE, "do_bind: v%d bind: \"%s\" to \"%s\"\n",
+ version, conn->c_cdn, conn->c_dn );
+#endif
ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
/* send this here to avoid a race condition */
- send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL );
+ send_ldap_result( conn, op, LDAP_SUCCESS,
+ NULL, NULL, NULL, NULL );
} else if (edn != NULL) {
free( edn );
}
} else {
- send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM, NULL,
- "Function not implemented" );
+ send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+ NULL, "operation not supported within namingContext", NULL, NULL );
}
cleanup:
- if( cdn != NULL ) {
- free( cdn );
+ if( dn != NULL ) {
+ free( dn );
}
if( ndn != NULL ) {
free( ndn );
projects / openldap / blobdiff