X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fbind.c;h=91fe75896155b8bc55f4ab4cd8a32395d5bcebc7;hb=2ece0ee378a47df99a05a0dd0db3763bdf9bb125;hp=9586812e3e433a5cfc4473b27ff72f8ddd6f9b65;hpb=00086db3f611e5be46e1c4840a68d1a9ce11299f;p=openldap diff --git a/servers/slapd/bind.c b/servers/slapd/bind.c index 9586812e3e..91fe758961 100644 --- a/servers/slapd/bind.c +++ b/servers/slapd/bind.c @@ -1,4 +1,9 @@ /* 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. @@ -19,14 +24,9 @@ #include #include +#include "ldap_pvt.h" #include "slap.h" -char *supportedSASLMechanisms[] = { - "X-CRAM-MD5", - "X-DIGEST-MD5", - NULL -}; - int do_bind( Connection *conn, @@ -37,24 +37,25 @@ do_bind( 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; Debug( LDAP_DEBUG_TRACE, "do_bind\n", 0, 0, 0 ); - 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 ) { @@ -67,6 +68,9 @@ do_bind( conn->c_dn = NULL; } + conn->c_authc_backend = NULL; + conn->c_authz_backend = NULL; + ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); if ( op->o_dn != NULL ) { @@ -99,12 +103,13 @@ do_bind( * } */ - tag = ber_scanf( ber, "{iat" /*}*/, &version, &cdn, &method ); + tag = ber_scanf( ber, "{iat" /*}*/, &version, &dn, &method ); if ( tag == LBER_ERROR ) { Debug( LDAP_DEBUG_ANY, "bind: ber_scanf failed\n", 0, 0, 0 ); - send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL, - "decoding error" ); + send_ldap_disconnect( conn, op, + LDAP_PROTOCOL_ERROR, "decoding error" ); + rc = -1; goto cleanup; } @@ -131,8 +136,10 @@ do_bind( } if ( tag == LBER_ERROR ) { - send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, NULL, + send_ldap_disconnect( conn, op, + LDAP_PROTOCOL_ERROR, "decoding error" ); + rc = SLAPD_DISCONNECT; goto cleanup; } @@ -141,105 +148,155 @@ do_bind( goto cleanup; } + ndn = ch_strdup( dn ); + + if ( dn_normalize( 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; + } + if( method == LDAP_AUTH_SASL ) { Debug( LDAP_DEBUG_TRACE, "do_sasl_bind: dn (%s) mech %s\n", - cdn, mech, NULL ); + dn, mech, NULL ); } else { - Debug( LDAP_DEBUG_TRACE, "do_bind: version %d dn (%s) method %d\n", - version, cdn, method ); + Debug( LDAP_DEBUG_TRACE, "do_bind: version=%ld dn=\"%s\" method=%ld\n", + (unsigned long) version, dn, (unsigned long) method ); } - 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" ); + Debug( LDAP_DEBUG_ANY, "do_bind: unknown version=%ld\n", + (unsigned long) version, 0, 0 ); + send_ldap_result( conn, op, rc = LDAP_PROTOCOL_ERROR, + NULL, "requested protocol version not supported", 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; + 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" ); + Debug( LDAP_DEBUG_ANY, "do_bind: sasl with LDAPv%ld\n", + (unsigned long) version, 0, 0 ); + send_ldap_disconnect( conn, op, + LDAP_PROTOCOL_ERROR, "SASL bind requires LDAPv3" ); + rc = SLAPD_DISCONNECT; goto cleanup; } if( mech == NULL || *mech == '\0' ) { Debug( LDAP_DEBUG_ANY, "do_bind: no sasl mechanism provided\n", - version, 0, 0 ); + 0, 0, 0 ); 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", + "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, "SASL mechanism not supported", NULL, NULL ); goto cleanup; } ldap_pvt_thread_mutex_lock( &conn->c_mutex ); - if ( conn->c_authmech != NULL ) { - assert( conn->c_bind_in_progress ); - - if((strcmp(conn->c_authmech, mech) != 0)) { + if ( conn->c_sasl_bind_mech != NULL ) { + if((strcmp(conn->c_sasl_bind_mech, 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; +#ifdef HAVE_CYRUS_SASL + sasl_dispose(&conn->c_sasl_bind_context); + conn->c_sasl_bind_context = NULL; +#endif } + free( conn->c_sasl_bind_mech ); + conn->c_sasl_bind_mech = NULL; #ifdef LDAP_DEBUG +#ifdef HAVE_CYRUS_SASL + } else { + assert( conn->c_sasl_bind_context == NULL ); +#endif +#endif + } + + ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); + + edn = NULL; + rc = sasl_bind( conn, op, dn, ndn, mech, &cred, &edn ); + + if( rc == LDAP_SUCCESS ) { + ldap_pvt_thread_mutex_lock( &conn->c_mutex ); +#ifdef HAVE_CYRUS_SASL + assert( conn->c_sasl_bind_context == NULL ); +#endif + conn->c_dn = edn; + ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); + + } else if ( rc == LDAP_SASL_BIND_IN_PROGRESS ) { +#ifdef HAVE_CYRUS_SASL + assert( conn->c_sasl_bind_context != NULL ); +#endif + conn->c_sasl_bind_mech = mech; + mech = NULL; + +#ifdef HAVE_CYRUS_SASL } else { - assert( !conn->c_bind_in_progress ); - assert( conn->c_authmech == NULL ); - assert( conn->c_authstate == NULL ); + assert( conn->c_sasl_bind_context != NULL ); #endif } + 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 ) { + assert( conn->c_sasl_bind_in_progress ); - /* cancel in progress bind */ - conn->c_bind_in_progress = 0; + free(conn->c_sasl_bind_mech); + conn->c_sasl_bind_mech = NULL; - if( conn->c_authstate != NULL ) { - free(conn->c_authstate); - conn->c_authstate = NULL; - } - free(conn->c_authmech); - conn->c_authmech = NULL; +#ifdef HAVE_CYRUS_SASL + assert( conn->c_sasl_bind_context != NULL ); + sasl_dispose(&conn->c_sasl_bind_context); + conn->c_sasl_bind_context = NULL; +#endif + } else { + assert( !conn->c_sasl_bind_in_progress ); +#ifdef HAVE_CYRUS_SASL + assert( conn->c_sasl_bind_context == NULL ); +#endif } - } - conn->c_protocol = version; - ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); + ldap_pvt_thread_mutex_unlock( &conn->c_mutex ); + } - /* accept null binds */ - if ( ndn == NULL || *ndn == '\0' ) { + /* accept "anonymous" binds */ + if ( cred.bv_len == 0 || ndn == NULL || *ndn == '\0' ) { /* - * we already forced connection to "anonymous", we just - * need to send success + * we already forced connection to "anonymous", + * just need to send success */ - send_ldap_result( conn, op, LDAP_SUCCESS, NULL, NULL ); + send_ldap_result( conn, op, LDAP_SUCCESS, + NULL, NULL, NULL, NULL ); + Debug( LDAP_DEBUG_TRACE, "do_bind: v%d anonymous bind\n", + version, 0, 0 ); goto cleanup; } @@ -250,33 +307,46 @@ do_bind( */ if ( (be = select_backend( ndn )) == NULL ) { - if ( cred.bv_len == 0 ) { - send_ldap_result( conn, op, LDAP_SUCCESS, - NULL, NULL ); - - } else if ( default_referral && *default_referral ) { - send_ldap_result( conn, op, rc = LDAP_PARTIAL_RESULTS, - NULL, default_referral ); + if ( default_referral ) { + send_ldap_result( conn, op, rc = LDAP_REFERRAL, + NULL, NULL, default_referral, NULL ); } 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; } + conn->c_authz_backend = be; + + /* make sure this backend recongizes critical controls */ + rc = backend_check_controls( be, conn, op, &text ) ; + + if( rc != LDAP_SUCCESS ) { + send_ldap_result( conn, op, rc, + NULL, text, NULL, NULL ); + goto cleanup; + } + if ( be->be_bind ) { + int ret; /* alias suffix */ - char *edn; + char *edn = NULL; + + /* deref suffix alias if appropriate */ + ndn = suffix_alias( be, ndn ); - ndn = suffixAlias( ndn, op, be ); + ret = (*be->be_bind)( be, conn, op, dn, 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 = cdn; - cdn = NULL; + conn->c_cdn = dn; + dn = NULL; if(edn != NULL) { conn->c_dn = edn; @@ -285,26 +355,27 @@ do_bind( ndn = NULL; } - Debug( LDAP_DEBUG_TRACE, "do_bind: bound \"%s\" to \"%s\"\n", - conn->c_cdn, conn->c_dn, method ); + Debug( LDAP_DEBUG_TRACE, "do_bind: v%d bind: \"%s\" to \"%s\"\n", + version, conn->c_cdn, conn->c_dn ); 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 );