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-rw-r--r--servers/slapd/result.c1859
1 files changed, 1859 insertions, 0 deletions
diff --git a/servers/slapd/result.c b/servers/slapd/result.c
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--- /dev/null
+++ b/servers/slapd/result.c
@@ -0,0 +1,1859 @@
+/* result.c - routines to send ldap results, errors, and referrals */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/errno.h>
+#include <ac/string.h>
+#include <ac/ctype.h>
+#include <ac/time.h>
+#include <ac/unistd.h>
+
+#include "slap.h"
+
+const struct berval slap_dummy_bv = BER_BVNULL;
+
+int slap_null_cb( Operation *op, SlapReply *rs )
+{
+ return 0;
+}
+
+int slap_freeself_cb( Operation *op, SlapReply *rs )
+{
+ assert( op->o_callback != NULL );
+
+ op->o_tmpfree( op->o_callback, op->o_tmpmemctx );
+ op->o_callback = NULL;
+
+ return SLAP_CB_CONTINUE;
+}
+
+static char *v2ref( BerVarray ref, const char *text )
+{
+ size_t len = 0, i = 0;
+ char *v2;
+
+ if(ref == NULL) {
+ if (text) {
+ return ch_strdup(text);
+ } else {
+ return NULL;
+ }
+ }
+
+ if ( text != NULL ) {
+ len = strlen( text );
+ if (text[len-1] != '\n') {
+ i = 1;
+ }
+ }
+
+ v2 = ch_malloc( len+i+sizeof("Referral:") );
+
+ if( text != NULL ) {
+ strcpy(v2, text);
+ if( i ) {
+ v2[len++] = '\n';
+ }
+ }
+ strcpy( v2+len, "Referral:" );
+ len += sizeof("Referral:");
+
+ for( i=0; ref[i].bv_val != NULL; i++ ) {
+ v2 = ch_realloc( v2, len + ref[i].bv_len + 1 );
+ v2[len-1] = '\n';
+ AC_MEMCPY(&v2[len], ref[i].bv_val, ref[i].bv_len );
+ len += ref[i].bv_len;
+ if (ref[i].bv_val[ref[i].bv_len-1] != '/') {
+ ++len;
+ }
+ }
+
+ v2[len-1] = '\0';
+ return v2;
+}
+
+ber_tag_t
+slap_req2res( ber_tag_t tag )
+{
+ switch( tag ) {
+ case LDAP_REQ_ADD:
+ case LDAP_REQ_BIND:
+ case LDAP_REQ_COMPARE:
+ case LDAP_REQ_EXTENDED:
+ case LDAP_REQ_MODIFY:
+ case LDAP_REQ_MODRDN:
+ tag++;
+ break;
+
+ case LDAP_REQ_DELETE:
+ tag = LDAP_RES_DELETE;
+ break;
+
+ case LDAP_REQ_ABANDON:
+ case LDAP_REQ_UNBIND:
+ tag = LBER_SEQUENCE;
+ break;
+
+ case LDAP_REQ_SEARCH:
+ tag = LDAP_RES_SEARCH_RESULT;
+ break;
+
+ default:
+ tag = LBER_SEQUENCE;
+ }
+
+ return tag;
+}
+
+/* SlapReply debugging, prodo-slap.h overrides it in OpenLDAP releases */
+#if defined(LDAP_TEST) || (defined(USE_RS_ASSERT) && (USE_RS_ASSERT))
+
+int rs_suppress_assert = 0;
+
+/* RS_ASSERT() helper function */
+void rs_assert_(const char*file, unsigned line, const char*fn, const char*cond)
+{
+ int no_assert = rs_suppress_assert, save_errno = errno;
+ const char *s;
+
+ if ( no_assert >= 0 ) {
+ if ( no_assert == 0 && (s = getenv( "NO_RS_ASSERT" )) && *s ) {
+ no_assert = rs_suppress_assert = atoi( s );
+ }
+ if ( no_assert > 0 ) {
+ errno = save_errno;
+ return;
+ }
+ }
+
+#ifdef rs_assert_ /* proto-slap.h #defined away the fn parameter */
+ fprintf( stderr,"%s:%u: " "RS_ASSERT(%s) failed.\n", file,line,cond );
+#else
+ fprintf( stderr,"%s:%u: %s: RS_ASSERT(%s) failed.\n", file,line,fn,cond );
+#endif
+ fflush( stderr );
+
+ errno = save_errno;
+ /* $NO_RS_ASSERT > 0: ignore rs_asserts, 0: abort, < 0: just warn */
+ if ( !no_assert /* from $NO_RS_ASSERT */ ) abort();
+}
+
+/* SlapReply is consistent */
+void
+(rs_assert_ok)( const SlapReply *rs )
+{
+ const slap_mask_t flags = rs->sr_flags;
+
+ if ( flags & REP_ENTRY_MASK ) {
+ RS_ASSERT( !(flags & REP_ENTRY_MUSTRELEASE)
+ || !(flags & (REP_ENTRY_MASK ^ REP_ENTRY_MUSTRELEASE)) );
+ RS_ASSERT( rs->sr_entry != NULL );
+ RS_ASSERT( (1 << rs->sr_type) &
+ ((1 << REP_SEARCH) | (1 << REP_SEARCHREF) |
+ (1 << REP_RESULT) | (1 << REP_GLUE_RESULT)) );
+ }
+#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
+ if ( (flags & (REP_MATCHED_MASK | REP_REF_MASK | REP_CTRLS_MASK)) ) {
+ RS_ASSERT( !(flags & REP_MATCHED_MASK) || rs->sr_matched );
+ RS_ASSERT( !(flags & REP_CTRLS_MASK ) || rs->sr_ctrls );
+ /* Note: LDAP_REFERRAL + !sr_ref is OK, becomes LDAP_NO_SUCH_OBJECT */
+ }
+#if (USE_RS_ASSERT) > 2
+ if ( rs->sr_err == LDAP_SUCCESS ) {
+ RS_ASSERT( rs->sr_text == NULL );
+ RS_ASSERT( rs->sr_matched == NULL );
+ }
+#endif
+#endif
+}
+
+/* Ready for calling a new backend operation */
+void
+(rs_assert_ready)( const SlapReply *rs )
+{
+ RS_ASSERT( !rs->sr_entry );
+#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
+ RS_ASSERT( !rs->sr_text );
+ RS_ASSERT( !rs->sr_ref );
+ RS_ASSERT( !rs->sr_matched );
+ RS_ASSERT( !rs->sr_ctrls );
+ RS_ASSERT( !rs->sr_flags );
+#if (USE_RS_ASSERT) > 2
+ RS_ASSERT( rs->sr_err == LDAP_SUCCESS );
+#endif
+#else
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
+#endif
+}
+
+/* Backend operation done */
+void
+(rs_assert_done)( const SlapReply *rs )
+{
+#if defined(USE_RS_ASSERT) && (USE_RS_ASSERT) > 1 /* TODO: Enable when safe */
+ RS_ASSERT( !(rs->sr_flags & ~(REP_ENTRY_MODIFIABLE|REP_NO_OPERATIONALS)) );
+ rs_assert_ok( rs );
+#else
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MUSTFLUSH) );
+#endif
+}
+
+#endif /* LDAP_TEST || USE_RS_ASSERT */
+
+/* Reset a used SlapReply whose contents has been flushed (freed/released) */
+void
+(rs_reinit)( SlapReply *rs, slap_reply_t type )
+{
+ rs_reinit( rs, type ); /* proto-slap.h macro */
+}
+
+/* Obey and clear rs->sr_flags & REP_ENTRY_MASK. Clear sr_entry if freed. */
+void
+rs_flush_entry( Operation *op, SlapReply *rs, slap_overinst *on )
+{
+ rs_assert_ok( rs );
+
+ if ( (rs->sr_flags & REP_ENTRY_MUSTFLUSH) && rs->sr_entry != NULL ) {
+ if ( !(rs->sr_flags & REP_ENTRY_MUSTRELEASE) ) {
+ entry_free( rs->sr_entry );
+ } else if ( on != NULL ) {
+ overlay_entry_release_ov( op, rs->sr_entry, 0, on );
+ } else {
+ be_entry_release_rw( op, rs->sr_entry, 0 );
+ }
+ rs->sr_entry = NULL;
+ }
+
+ rs->sr_flags &= ~REP_ENTRY_MASK;
+}
+
+/* Set rs->sr_entry after obeying and clearing sr_flags & REP_ENTRY_MASK. */
+void
+rs_replace_entry( Operation *op, SlapReply *rs, slap_overinst *on, Entry *e )
+{
+ rs_flush_entry( op, rs, on );
+ rs->sr_entry = e;
+}
+
+/*
+ * Ensure rs->sr_entry is modifiable, by duplicating it if necessary.
+ * Obey sr_flags. Set REP_ENTRY_<MODIFIABLE, and MUSTBEFREED if duplicated>.
+ * Return nonzero if rs->sr_entry was replaced.
+ */
+int
+rs_entry2modifiable( Operation *op, SlapReply *rs, slap_overinst *on )
+{
+ if ( rs->sr_flags & REP_ENTRY_MODIFIABLE ) {
+ rs_assert_ok( rs );
+ return 0;
+ }
+ rs_replace_entry( op, rs, on, entry_dup( rs->sr_entry ));
+ rs->sr_flags |= REP_ENTRY_MODIFIABLE | REP_ENTRY_MUSTBEFREED;
+ return 1;
+}
+
+/* Check for any callbacks that want to be informed about being blocked
+ * on output. These callbacks are expected to leave the callback list
+ * unmodified. Their result is ignored.
+ */
+static void
+slap_writewait_play(
+ Operation *op )
+{
+ slap_callback *sc = op->o_callback;
+
+ for ( ; sc; sc = sc->sc_next ) {
+ if ( sc->sc_writewait )
+ sc->sc_writewait( op, sc );
+ }
+}
+
+static long send_ldap_ber(
+ Operation *op,
+ BerElement *ber )
+{
+ Connection *conn = op->o_conn;
+ ber_len_t bytes;
+ long ret = 0;
+
+ ber_get_option( ber, LBER_OPT_BER_BYTES_TO_WRITE, &bytes );
+
+ /* write only one pdu at a time - wait til it's our turn */
+ ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
+ if (( op->o_abandon && !op->o_cancel ) || !connection_valid( conn ) ||
+ conn->c_writers < 0 ) {
+ ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
+ return 0;
+ }
+
+ conn->c_writers++;
+
+ while ( conn->c_writers > 0 && conn->c_writing ) {
+ ldap_pvt_thread_cond_wait( &conn->c_write1_cv, &conn->c_write1_mutex );
+ }
+
+ /* connection was closed under us */
+ if ( conn->c_writers < 0 ) {
+ /* we're the last waiter, let the closer continue */
+ if ( conn->c_writers == -1 )
+ ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
+ conn->c_writers++;
+ ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
+ return 0;
+ }
+
+ /* Our turn */
+ conn->c_writing = 1;
+
+ /* write the pdu */
+ while( 1 ) {
+ int err;
+
+ if ( ber_flush2( conn->c_sb, ber, LBER_FLUSH_FREE_NEVER ) == 0 ) {
+ ret = bytes;
+ break;
+ }
+
+ err = sock_errno();
+
+ /*
+ * we got an error. if it's ewouldblock, we need to
+ * wait on the socket being writable. otherwise, figure
+ * it's a hard error and return.
+ */
+
+ Debug( LDAP_DEBUG_CONNS, "ber_flush2 failed errno=%d reason=\"%s\"\n",
+ err, sock_errstr(err), 0 );
+
+ if ( err != EWOULDBLOCK && err != EAGAIN ) {
+ conn->c_writers--;
+ conn->c_writing = 0;
+ ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
+ ldap_pvt_thread_mutex_lock( &conn->c_mutex );
+ connection_closing( conn, "connection lost on write" );
+
+ ldap_pvt_thread_mutex_unlock( &conn->c_mutex );
+ return -1;
+ }
+
+ /* wait for socket to be write-ready */
+ slap_writewait_play( op );
+ ldap_pvt_thread_mutex_lock( &conn->c_write2_mutex );
+ conn->c_writewaiter = 1;
+ slapd_set_write( conn->c_sd, 2 );
+
+ ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
+ ldap_pvt_thread_pool_idle( &connection_pool );
+ ldap_pvt_thread_cond_wait( &conn->c_write2_cv, &conn->c_write2_mutex );
+ conn->c_writewaiter = 0;
+ ldap_pvt_thread_mutex_unlock( &conn->c_write2_mutex );
+ ldap_pvt_thread_pool_unidle( &connection_pool );
+ ldap_pvt_thread_mutex_lock( &conn->c_write1_mutex );
+ if ( conn->c_writers < 0 ) {
+ ret = 0;
+ break;
+ }
+ }
+
+ conn->c_writing = 0;
+ if ( conn->c_writers < 0 ) {
+ conn->c_writers++;
+ if ( !conn->c_writers )
+ ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
+ } else {
+ conn->c_writers--;
+ ldap_pvt_thread_cond_signal( &conn->c_write1_cv );
+ }
+ ldap_pvt_thread_mutex_unlock( &conn->c_write1_mutex );
+
+ return ret;
+}
+
+static int
+send_ldap_control( BerElement *ber, LDAPControl *c )
+{
+ int rc;
+
+ assert( c != NULL );
+
+ rc = ber_printf( ber, "{s" /*}*/, c->ldctl_oid );
+
+ if( c->ldctl_iscritical ) {
+ rc = ber_printf( ber, "b",
+ (ber_int_t) c->ldctl_iscritical ) ;
+ if( rc == -1 ) return rc;
+ }
+
+ if( c->ldctl_value.bv_val != NULL ) {
+ rc = ber_printf( ber, "O", &c->ldctl_value );
+ if( rc == -1 ) return rc;
+ }
+
+ rc = ber_printf( ber, /*{*/"N}" );
+ if( rc == -1 ) return rc;
+
+ return 0;
+}
+
+static int
+send_ldap_controls( Operation *o, BerElement *ber, LDAPControl **c )
+{
+ int rc;
+
+ if( c == NULL )
+ return 0;
+
+ rc = ber_printf( ber, "t{"/*}*/, LDAP_TAG_CONTROLS );
+ if( rc == -1 ) return rc;
+
+ for( ; *c != NULL; c++) {
+ rc = send_ldap_control( ber, *c );
+ if( rc == -1 ) return rc;
+ }
+
+#ifdef SLAP_CONTROL_X_SORTEDRESULTS
+ /* this is a hack to avoid having to modify op->s_ctrls */
+ if( o->o_sortedresults ) {
+ BerElementBuffer berbuf;
+ BerElement *sber = (BerElement *) &berbuf;
+ LDAPControl sorted;
+ BER_BVZERO( &sorted.ldctl_value );
+ sorted.ldctl_oid = LDAP_CONTROL_SORTRESPONSE;
+ sorted.ldctl_iscritical = 0;
+
+ ber_init2( sber, NULL, LBER_USE_DER );
+
+ ber_printf( sber, "{e}", LDAP_UNWILLING_TO_PERFORM );
+
+ if( ber_flatten2( sber, &sorted.ldctl_value, 0 ) == -1 ) {
+ return -1;
+ }
+
+ (void) ber_free_buf( sber );
+
+ rc = send_ldap_control( ber, &sorted );
+ if( rc == -1 ) return rc;
+ }
+#endif
+
+ rc = ber_printf( ber, /*{*/"N}" );
+
+ return rc;
+}
+
+/*
+ * slap_response_play()
+ *
+ * plays the callback list; rationale: a callback can
+ * - remove itself from the list, by setting op->o_callback = NULL;
+ * malloc()'ed callbacks should free themselves from inside the
+ * sc_response() function.
+ * - replace itself with another (list of) callback(s), by setting
+ * op->o_callback = a new (list of) callback(s); in this case, it
+ * is the callback's responsibility to to append existing subsequent
+ * callbacks to the end of the list that is passed to the sc_response()
+ * function.
+ * - modify the list of subsequent callbacks by modifying the value
+ * of the sc_next field from inside the sc_response() function; this
+ * case does not require any handling from inside slap_response_play()
+ *
+ * To stop execution of the playlist, the sc_response() function must return
+ * a value different from SLAP_SC_CONTINUE.
+ *
+ * The same applies to slap_cleanup_play(); only, there is no means to stop
+ * execution of the playlist, since all cleanup functions must be called.
+ */
+static int
+slap_response_play(
+ Operation *op,
+ SlapReply *rs )
+{
+ int rc;
+
+ slap_callback *sc = op->o_callback, **scp;
+
+ rc = SLAP_CB_CONTINUE;
+ for ( scp = &sc; *scp; ) {
+ slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
+
+ op->o_callback = *scp;
+ if ( op->o_callback->sc_response ) {
+ rc = op->o_callback->sc_response( op, rs );
+ if ( op->o_callback == NULL ) {
+ /* the callback has been removed;
+ * repair the list */
+ *scp = sc_next;
+ sc_nextp = scp;
+
+ } else if ( op->o_callback != *scp ) {
+ /* a new callback has been inserted
+ * in place of the existing one; repair the list */
+ *scp = op->o_callback;
+ sc_nextp = scp;
+ }
+ if ( rc != SLAP_CB_CONTINUE ) break;
+ }
+ scp = sc_nextp;
+ }
+
+ op->o_callback = sc;
+ return rc;
+}
+
+static int
+slap_cleanup_play(
+ Operation *op,
+ SlapReply *rs )
+{
+ slap_callback *sc = op->o_callback, **scp;
+
+ for ( scp = &sc; *scp; ) {
+ slap_callback *sc_next = (*scp)->sc_next, **sc_nextp = &(*scp)->sc_next;
+
+ op->o_callback = *scp;
+ if ( op->o_callback->sc_cleanup ) {
+ (void)op->o_callback->sc_cleanup( op, rs );
+ if ( op->o_callback == NULL ) {
+ /* the callback has been removed;
+ * repair the list */
+ *scp = sc_next;
+ sc_nextp = scp;
+
+ } else if ( op->o_callback != *scp ) {
+ /* a new callback has been inserted
+ * after the existing one; repair the list */
+ /* a new callback has been inserted
+ * in place of the existing one; repair the list */
+ *scp = op->o_callback;
+ sc_nextp = scp;
+ }
+ /* don't care about the result; do all cleanup */
+ }
+ scp = sc_nextp;
+ }
+
+ op->o_callback = sc;
+ return LDAP_SUCCESS;
+}
+
+static int
+send_ldap_response(
+ Operation *op,
+ SlapReply *rs )
+{
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *) &berbuf;
+ int rc = LDAP_SUCCESS;
+ long bytes;
+
+ /* op was actually aborted, bypass everything if client didn't Cancel */
+ if (( rs->sr_err == SLAPD_ABANDON ) && !op->o_cancel ) {
+ rc = SLAPD_ABANDON;
+ goto clean2;
+ }
+
+ if ( op->o_callback ) {
+ rc = slap_response_play( op, rs );
+ if ( rc != SLAP_CB_CONTINUE ) {
+ goto clean2;
+ }
+ }
+
+ /* op completed, connection aborted, bypass sending response */
+ if ( op->o_abandon && !op->o_cancel ) {
+ rc = SLAPD_ABANDON;
+ goto clean2;
+ }
+
+#ifdef LDAP_CONNECTIONLESS
+ if (op->o_conn && op->o_conn->c_is_udp)
+ ber = op->o_res_ber;
+ else
+#endif
+ {
+ ber_init_w_nullc( ber, LBER_USE_DER );
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+ }
+
+ rc = rs->sr_err;
+ if ( rc == SLAPD_ABANDON && op->o_cancel )
+ rc = LDAP_CANCELLED;
+
+ Debug( LDAP_DEBUG_TRACE,
+ "send_ldap_response: msgid=%d tag=%lu err=%d\n",
+ rs->sr_msgid, rs->sr_tag, rc );
+
+ if( rs->sr_ref ) {
+ Debug( LDAP_DEBUG_ARGS, "send_ldap_response: ref=\"%s\"\n",
+ rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
+ NULL, NULL );
+ }
+
+#ifdef LDAP_CONNECTIONLESS
+ if (op->o_conn && op->o_conn->c_is_udp &&
+ op->o_protocol == LDAP_VERSION2 )
+ {
+ rc = ber_printf( ber, "t{ess" /*"}"*/,
+ rs->sr_tag, rc,
+ rs->sr_matched == NULL ? "" : rs->sr_matched,
+ rs->sr_text == NULL ? "" : rs->sr_text );
+ } else
+#endif
+ if ( rs->sr_type == REP_INTERMEDIATE ) {
+ rc = ber_printf( ber, "{it{" /*"}}"*/,
+ rs->sr_msgid, rs->sr_tag );
+
+ } else {
+ rc = ber_printf( ber, "{it{ess" /*"}}"*/,
+ rs->sr_msgid, rs->sr_tag, rc,
+ rs->sr_matched == NULL ? "" : rs->sr_matched,
+ rs->sr_text == NULL ? "" : rs->sr_text );
+ }
+
+ if( rc != -1 ) {
+ if ( rs->sr_ref != NULL ) {
+ assert( rs->sr_err == LDAP_REFERRAL );
+ rc = ber_printf( ber, "t{W}",
+ LDAP_TAG_REFERRAL, rs->sr_ref );
+ } else {
+ assert( rs->sr_err != LDAP_REFERRAL );
+ }
+ }
+
+ if( rc != -1 && rs->sr_type == REP_SASL && rs->sr_sasldata != NULL ) {
+ rc = ber_printf( ber, "tO",
+ LDAP_TAG_SASL_RES_CREDS, rs->sr_sasldata );
+ }
+
+ if( rc != -1 &&
+ ( rs->sr_type == REP_EXTENDED || rs->sr_type == REP_INTERMEDIATE ))
+ {
+ if ( rs->sr_rspoid != NULL ) {
+ rc = ber_printf( ber, "ts",
+ rs->sr_type == REP_EXTENDED
+ ? LDAP_TAG_EXOP_RES_OID : LDAP_TAG_IM_RES_OID,
+ rs->sr_rspoid );
+ }
+ if( rc != -1 && rs->sr_rspdata != NULL ) {
+ rc = ber_printf( ber, "tO",
+ rs->sr_type == REP_EXTENDED
+ ? LDAP_TAG_EXOP_RES_VALUE : LDAP_TAG_IM_RES_VALUE,
+ rs->sr_rspdata );
+ }
+ }
+
+ if( rc != -1 ) {
+ rc = ber_printf( ber, /*"{"*/ "N}" );
+ }
+
+ if( rc != -1 ) {
+ rc = send_ldap_controls( op, ber, rs->sr_ctrls );
+ }
+
+ if( rc != -1 ) {
+ rc = ber_printf( ber, /*"{"*/ "N}" );
+ }
+
+#ifdef LDAP_CONNECTIONLESS
+ if( op->o_conn && op->o_conn->c_is_udp && op->o_protocol == LDAP_VERSION2
+ && rc != -1 )
+ {
+ rc = ber_printf( ber, /*"{"*/ "N}" );
+ }
+#endif
+
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
+
+#ifdef LDAP_CONNECTIONLESS
+ if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
+ {
+ ber_free_buf( ber );
+ }
+ goto cleanup;
+ }
+
+ /* send BER */
+ bytes = send_ldap_ber( op, ber );
+#ifdef LDAP_CONNECTIONLESS
+ if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
+ {
+ ber_free_buf( ber );
+ }
+
+ if ( bytes < 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_ldap_response: ber write failed\n",
+ 0, 0, 0 );
+
+ goto cleanup;
+ }
+
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
+
+cleanup:;
+ /* Tell caller that we did this for real, as opposed to being
+ * overridden by a callback
+ */
+ rc = SLAP_CB_CONTINUE;
+
+clean2:;
+ if ( op->o_callback ) {
+ (void)slap_cleanup_play( op, rs );
+ }
+
+ if ( rs->sr_flags & REP_MATCHED_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_MATCHED_MUSTBEFREED; /* paranoia */
+ if ( rs->sr_matched ) {
+ free( (char *)rs->sr_matched );
+ rs->sr_matched = NULL;
+ }
+ }
+
+ if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_REF_MUSTBEFREED; /* paranoia */
+ if ( rs->sr_ref ) {
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ }
+ }
+
+ if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
+ if ( rs->sr_ctrls ) {
+ slap_free_ctrls( op, rs->sr_ctrls );
+ rs->sr_ctrls = NULL;
+ }
+ }
+
+ return rc;
+}
+
+
+void
+send_ldap_disconnect( Operation *op, SlapReply *rs )
+{
+#define LDAP_UNSOLICITED_ERROR(e) \
+ ( (e) == LDAP_PROTOCOL_ERROR \
+ || (e) == LDAP_STRONG_AUTH_REQUIRED \
+ || (e) == LDAP_UNAVAILABLE )
+
+ Debug( LDAP_DEBUG_TRACE,
+ "send_ldap_disconnect %d:%s\n",
+ rs->sr_err, rs->sr_text ? rs->sr_text : "", NULL );
+ assert( LDAP_UNSOLICITED_ERROR( rs->sr_err ) );
+
+ /* TODO: Flush the entry if sr_type == REP_SEARCH/REP_SEARCHREF? */
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
+ rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */
+
+ rs->sr_type = REP_EXTENDED;
+ rs->sr_rspdata = NULL;
+
+ if ( op->o_protocol < LDAP_VERSION3 ) {
+ rs->sr_rspoid = NULL;
+ rs->sr_tag = slap_req2res( op->o_tag );
+ rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+
+ } else {
+ rs->sr_rspoid = LDAP_NOTICE_DISCONNECT;
+ rs->sr_tag = LDAP_RES_EXTENDED;
+ rs->sr_msgid = LDAP_RES_UNSOLICITED;
+ }
+
+ if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
+ Statslog( LDAP_DEBUG_STATS,
+ "%s DISCONNECT tag=%lu err=%d text=%s\n",
+ op->o_log_prefix, rs->sr_tag, rs->sr_err,
+ rs->sr_text ? rs->sr_text : "", 0 );
+ }
+}
+
+void
+slap_send_ldap_result( Operation *op, SlapReply *rs )
+{
+ char *tmp = NULL;
+ const char *otext = rs->sr_text;
+ BerVarray oref = rs->sr_ref;
+
+ rs->sr_type = REP_RESULT;
+
+ /* Propagate Abandons so that cleanup callbacks can be processed */
+ if ( rs->sr_err == SLAPD_ABANDON || op->o_abandon )
+ goto abandon;
+
+ Debug( LDAP_DEBUG_TRACE,
+ "send_ldap_result: %s p=%d\n",
+ op->o_log_prefix, op->o_protocol, 0 );
+ Debug( LDAP_DEBUG_ARGS,
+ "send_ldap_result: err=%d matched=\"%s\" text=\"%s\"\n",
+ rs->sr_err, rs->sr_matched ? rs->sr_matched : "",
+ rs->sr_text ? rs->sr_text : "" );
+ if( rs->sr_ref ) {
+ Debug( LDAP_DEBUG_ARGS,
+ "send_ldap_result: referral=\"%s\"\n",
+ rs->sr_ref[0].bv_val ? rs->sr_ref[0].bv_val : "NULL",
+ NULL, NULL );
+ }
+ assert( !LDAP_API_ERROR( rs->sr_err ) );
+ assert( rs->sr_err != LDAP_PARTIAL_RESULTS );
+
+ if ( rs->sr_err == LDAP_REFERRAL ) {
+ if( op->o_domain_scope ) rs->sr_ref = NULL;
+
+ if( rs->sr_ref == NULL ) {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ } else if ( op->o_protocol < LDAP_VERSION3 ) {
+ rs->sr_err = LDAP_PARTIAL_RESULTS;
+ }
+ }
+
+ if ( op->o_protocol < LDAP_VERSION3 ) {
+ tmp = v2ref( rs->sr_ref, rs->sr_text );
+ rs->sr_text = tmp;
+ rs->sr_ref = NULL;
+ }
+
+abandon:
+ rs->sr_tag = slap_req2res( op->o_tag );
+ rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+
+ if ( rs->sr_flags & REP_REF_MUSTBEFREED ) {
+ if ( rs->sr_ref == NULL ) {
+ rs->sr_flags ^= REP_REF_MUSTBEFREED;
+ ber_bvarray_free( oref );
+ }
+ oref = NULL; /* send_ldap_response() will free rs->sr_ref if != NULL */
+ }
+
+ if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
+ if ( op->o_tag == LDAP_REQ_SEARCH ) {
+ Statslog( LDAP_DEBUG_STATS,
+ "%s SEARCH RESULT tag=%lu err=%d nentries=%d text=%s\n",
+ op->o_log_prefix, rs->sr_tag, rs->sr_err,
+ rs->sr_nentries, rs->sr_text ? rs->sr_text : "" );
+ } else {
+ Statslog( LDAP_DEBUG_STATS,
+ "%s RESULT tag=%lu err=%d text=%s\n",
+ op->o_log_prefix, rs->sr_tag, rs->sr_err,
+ rs->sr_text ? rs->sr_text : "", 0 );
+ }
+ }
+
+ if( tmp != NULL ) ch_free(tmp);
+ rs->sr_text = otext;
+ rs->sr_ref = oref;
+}
+
+void
+send_ldap_sasl( Operation *op, SlapReply *rs )
+{
+ Debug( LDAP_DEBUG_TRACE, "send_ldap_sasl: err=%d len=%ld\n",
+ rs->sr_err,
+ rs->sr_sasldata ? (long) rs->sr_sasldata->bv_len : -1, NULL );
+
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
+ rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */
+
+ rs->sr_type = REP_SASL;
+ rs->sr_tag = slap_req2res( op->o_tag );
+ rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+
+ if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
+ Statslog( LDAP_DEBUG_STATS,
+ "%s RESULT tag=%lu err=%d text=%s\n",
+ op->o_log_prefix, rs->sr_tag, rs->sr_err,
+ rs->sr_text ? rs->sr_text : "", 0 );
+ }
+}
+
+void
+slap_send_ldap_extended( Operation *op, SlapReply *rs )
+{
+ Debug( LDAP_DEBUG_TRACE,
+ "send_ldap_extended: err=%d oid=%s len=%ld\n",
+ rs->sr_err,
+ rs->sr_rspoid ? rs->sr_rspoid : "",
+ rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
+
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
+ rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */
+
+ rs->sr_type = REP_EXTENDED;
+ rs->sr_tag = slap_req2res( op->o_tag );
+ rs->sr_msgid = (rs->sr_tag != LBER_SEQUENCE) ? op->o_msgid : 0;
+
+ if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
+ Statslog( LDAP_DEBUG_STATS,
+ "%s RESULT oid=%s err=%d text=%s\n",
+ op->o_log_prefix, rs->sr_rspoid ? rs->sr_rspoid : "",
+ rs->sr_err, rs->sr_text ? rs->sr_text : "", 0 );
+ }
+}
+
+void
+slap_send_ldap_intermediate( Operation *op, SlapReply *rs )
+{
+ Debug( LDAP_DEBUG_TRACE,
+ "send_ldap_intermediate: err=%d oid=%s len=%ld\n",
+ rs->sr_err,
+ rs->sr_rspoid ? rs->sr_rspoid : "",
+ rs->sr_rspdata != NULL ? rs->sr_rspdata->bv_len : 0 );
+
+ RS_ASSERT( !(rs->sr_flags & REP_ENTRY_MASK) );
+ rs->sr_flags &= ~REP_ENTRY_MASK; /* paranoia */
+
+ rs->sr_type = REP_INTERMEDIATE;
+ rs->sr_tag = LDAP_RES_INTERMEDIATE;
+ rs->sr_msgid = op->o_msgid;
+ if ( send_ldap_response( op, rs ) == SLAP_CB_CONTINUE ) {
+ Statslog( LDAP_DEBUG_STATS2,
+ "%s INTERM oid=%s\n",
+ op->o_log_prefix,
+ rs->sr_rspoid ? rs->sr_rspoid : "", 0, 0, 0 );
+ }
+}
+
+#define set_ldap_error( rs, err, text ) do { \
+ (rs)->sr_err = err; (rs)->sr_text = text; } while(0)
+
+/*
+ * returns:
+ *
+ * LDAP_SUCCESS entry sent
+ * LDAP_OTHER entry not sent (other)
+ * LDAP_INSUFFICIENT_ACCESS entry not sent (ACL)
+ * LDAP_UNAVAILABLE entry not sent (connection closed)
+ * LDAP_SIZELIMIT_EXCEEDED entry not sent (caller must send sizelimitExceeded)
+ */
+
+int
+slap_send_search_entry( Operation *op, SlapReply *rs )
+{
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *) &berbuf;
+ Attribute *a;
+ int i, j, rc = LDAP_UNAVAILABLE, bytes;
+ int userattrs;
+ AccessControlState acl_state = ACL_STATE_INIT;
+ int attrsonly;
+ AttributeDescription *ad_entry = slap_schema.si_ad_entry;
+
+ /* a_flags: array of flags telling if the i-th element will be
+ * returned or filtered out
+ * e_flags: array of a_flags
+ */
+ char **e_flags = NULL;
+
+ rs->sr_type = REP_SEARCH;
+
+ if ( op->ors_slimit >= 0 && rs->sr_nentries >= op->ors_slimit ) {
+ rc = LDAP_SIZELIMIT_EXCEEDED;
+ goto error_return;
+ }
+
+ /* Every 64 entries, check for thread pool pause */
+ if ( ( ( rs->sr_nentries & 0x3f ) == 0x3f ) &&
+ ldap_pvt_thread_pool_pausing( &connection_pool ) > 0 )
+ {
+ rc = LDAP_BUSY;
+ goto error_return;
+ }
+
+ /* eventually will loop through generated operational attribute types
+ * currently implemented types include:
+ * entryDN, subschemaSubentry, and hasSubordinates */
+ /* NOTE: moved before overlays callback circling because
+ * they may modify entry and other stuff in rs */
+ /* check for special all operational attributes ("+") type */
+ /* FIXME: maybe we could set this flag at the operation level;
+ * however, in principle the caller of send_search_entry() may
+ * change the attribute list at each call */
+ rs->sr_attr_flags = slap_attr_flags( rs->sr_attrs );
+
+ rc = backend_operational( op, rs );
+ if ( rc ) {
+ goto error_return;
+ }
+
+ if ( op->o_callback ) {
+ rc = slap_response_play( op, rs );
+ if ( rc != SLAP_CB_CONTINUE ) {
+ goto error_return;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "=> send_search_entry: conn %lu dn=\"%s\"%s\n",
+ op->o_connid, rs->sr_entry->e_name.bv_val,
+ op->ors_attrsonly ? " (attrsOnly)" : "" );
+
+ attrsonly = op->ors_attrsonly;
+
+ if ( !access_allowed( op, rs->sr_entry, ad_entry, NULL, ACL_READ, NULL )) {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_entry: conn %lu access to entry (%s) not allowed\n",
+ op->o_connid, rs->sr_entry->e_name.bv_val, 0 );
+
+ rc = LDAP_INSUFFICIENT_ACCESS;
+ goto error_return;
+ }
+
+ if ( op->o_res_ber ) {
+ /* read back control or LDAP_CONNECTIONLESS */
+ ber = op->o_res_ber;
+ } else {
+ struct berval bv;
+
+ bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
+ bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
+
+ ber_init2( ber, &bv, LBER_USE_DER );
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+ }
+
+#ifdef LDAP_CONNECTIONLESS
+ if ( op->o_conn && op->o_conn->c_is_udp ) {
+ /* CONNECTIONLESS */
+ if ( op->o_protocol == LDAP_VERSION2 ) {
+ rc = ber_printf(ber, "t{O{" /*}}*/,
+ LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+ } else {
+ rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
+ LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+ }
+ } else
+#endif
+ if ( op->o_res_ber ) {
+ /* read back control */
+ rc = ber_printf( ber, "t{O{" /*}}*/,
+ LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+ } else {
+ rc = ber_printf( ber, "{it{O{" /*}}}*/, op->o_msgid,
+ LDAP_RES_SEARCH_ENTRY, &rs->sr_entry->e_name );
+ }
+
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER, "encoding DN error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+
+ /* check for special all user attributes ("*") type */
+ userattrs = SLAP_USERATTRS( rs->sr_attr_flags );
+
+ /* create an array of arrays of flags. Each flag corresponds
+ * to particular value of attribute and equals 1 if value matches
+ * to ValuesReturnFilter or 0 if not
+ */
+ if ( op->o_vrFilter != NULL ) {
+ int k = 0;
+ size_t size;
+
+ for ( a = rs->sr_entry->e_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
+ for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
+ }
+
+ size = i * sizeof(char *) + k;
+ if ( size > 0 ) {
+ char *a_flags;
+ e_flags = slap_sl_calloc ( 1, i * sizeof(char *) + k, op->o_tmpmemctx );
+ if( e_flags == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu slap_sl_calloc failed\n",
+ op->o_connid, 0, 0 );
+ ber_free( ber, 1 );
+
+ set_ldap_error( rs, LDAP_OTHER, "out of memory" );
+ goto error_return;
+ }
+ a_flags = (char *)(e_flags + i);
+ memset( a_flags, 0, k );
+ for ( a=rs->sr_entry->e_attrs, i=0; a != NULL; a=a->a_next, i++ ) {
+ for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
+ e_flags[i] = a_flags;
+ a_flags += j;
+ }
+
+ rc = filter_matched_values(op, rs->sr_entry->e_attrs, &e_flags) ;
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY, "send_search_entry: "
+ "conn %lu matched values filtering failed\n",
+ op->o_connid, 0, 0 );
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "matched values filtering error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+ }
+
+ for ( a = rs->sr_entry->e_attrs, j = 0; a != NULL; a = a->a_next, j++ ) {
+ AttributeDescription *desc = a->a_desc;
+ int finish = 0;
+
+ if ( rs->sr_attrs == NULL ) {
+ /* all user attrs request, skip operational attributes */
+ if( is_at_operational( desc->ad_type ) ) {
+ continue;
+ }
+
+ } else {
+ /* specific attrs requested */
+ if ( is_at_operational( desc->ad_type ) ) {
+ /* if not explicitly requested */
+ if ( !ad_inlist( desc, rs->sr_attrs )) {
+ /* if not all op attrs requested, skip */
+ if ( !SLAP_OPATTRS( rs->sr_attr_flags ))
+ continue;
+ /* if DSA-specific and replicating, skip */
+ if ( op->o_sync != SLAP_CONTROL_NONE &&
+ desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
+ continue;
+ }
+ } else {
+ if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
+ continue;
+ }
+ }
+ }
+
+ if ( attrsonly ) {
+ if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
+ ACL_READ, &acl_state ) )
+ {
+ Debug( LDAP_DEBUG_ACL, "send_search_entry: "
+ "conn %lu access to attribute %s not allowed\n",
+ op->o_connid, desc->ad_cname.bv_val, 0 );
+ continue;
+ }
+
+ if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "encoding description error");
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ finish = 1;
+
+ } else {
+ int first = 1;
+ for ( i = 0; a->a_nvals[i].bv_val != NULL; i++ ) {
+ if ( ! access_allowed( op, rs->sr_entry,
+ desc, &a->a_nvals[i], ACL_READ, &acl_state ) )
+ {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_entry: conn %lu "
+ "access to attribute %s, value #%d not allowed\n",
+ op->o_connid, desc->ad_cname.bv_val, i );
+
+ continue;
+ }
+
+ if ( op->o_vrFilter && e_flags[j][i] == 0 ){
+ continue;
+ }
+
+ if ( first ) {
+ first = 0;
+ finish = 1;
+ if (( rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "encoding description error");
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+ if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu "
+ "ber_printf failed.\n", op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "encoding values error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+ }
+
+ if ( finish && ( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER, "encode end error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+
+ /* NOTE: moved before overlays callback circling because
+ * they may modify entry and other stuff in rs */
+ if ( rs->sr_operational_attrs != NULL && op->o_vrFilter != NULL ) {
+ int k = 0;
+ size_t size;
+
+ for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
+ for ( j = 0; a->a_vals[j].bv_val != NULL; j++ ) k++;
+ }
+
+ size = i * sizeof(char *) + k;
+ if ( size > 0 ) {
+ char *a_flags, **tmp;
+
+ /*
+ * Reuse previous memory - we likely need less space
+ * for operational attributes
+ */
+ tmp = slap_sl_realloc( e_flags, i * sizeof(char *) + k,
+ op->o_tmpmemctx );
+ if ( tmp == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu "
+ "not enough memory "
+ "for matched values filtering\n",
+ op->o_connid, 0, 0 );
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "not enough memory for matched values filtering" );
+ goto error_return;
+ }
+ e_flags = tmp;
+ a_flags = (char *)(e_flags + i);
+ memset( a_flags, 0, k );
+ for ( a = rs->sr_operational_attrs, i=0; a != NULL; a = a->a_next, i++ ) {
+ for ( j = 0; a->a_vals[j].bv_val != NULL; j++ );
+ e_flags[i] = a_flags;
+ a_flags += j;
+ }
+ rc = filter_matched_values(op, rs->sr_operational_attrs, &e_flags) ;
+
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu "
+ "matched values filtering failed\n",
+ op->o_connid, 0, 0);
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "matched values filtering error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+ }
+
+ for (a = rs->sr_operational_attrs, j=0; a != NULL; a = a->a_next, j++ ) {
+ AttributeDescription *desc = a->a_desc;
+
+ if ( rs->sr_attrs == NULL ) {
+ /* all user attrs request, skip operational attributes */
+ if( is_at_operational( desc->ad_type ) ) {
+ continue;
+ }
+
+ } else {
+ /* specific attrs requested */
+ if( is_at_operational( desc->ad_type ) ) {
+ if ( !SLAP_OPATTRS( rs->sr_attr_flags ) &&
+ !ad_inlist( desc, rs->sr_attrs ) )
+ {
+ continue;
+ }
+ /* if DSA-specific and replicating, skip */
+ if ( op->o_sync != SLAP_CONTROL_NONE &&
+ desc->ad_type->sat_usage == LDAP_SCHEMA_DSA_OPERATION )
+ continue;
+ } else {
+ if ( !userattrs && !ad_inlist( desc, rs->sr_attrs ) ) {
+ continue;
+ }
+ }
+ }
+
+ if ( ! access_allowed( op, rs->sr_entry, desc, NULL,
+ ACL_READ, &acl_state ) )
+ {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_entry: conn %lu "
+ "access to attribute %s not allowed\n",
+ op->o_connid, desc->ad_cname.bv_val, 0 );
+
+ continue;
+ }
+
+ rc = ber_printf( ber, "{O[" /*]}*/ , &desc->ad_cname );
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu "
+ "ber_printf failed\n", op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "encoding description error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+
+ if ( ! attrsonly ) {
+ for ( i = 0; a->a_vals[i].bv_val != NULL; i++ ) {
+ if ( ! access_allowed( op, rs->sr_entry,
+ desc, &a->a_vals[i], ACL_READ, &acl_state ) )
+ {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_entry: conn %lu "
+ "access to %s, value %d not allowed\n",
+ op->o_connid, desc->ad_cname.bv_val, i );
+
+ continue;
+ }
+
+ if ( op->o_vrFilter && e_flags[j][i] == 0 ){
+ continue;
+ }
+
+ if (( rc = ber_printf( ber, "O", &a->a_vals[i] )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER,
+ "encoding values error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+ }
+
+ if (( rc = ber_printf( ber, /*{[*/ "]N}" )) == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber_printf failed\n",
+ op->o_connid, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER, "encode end error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ }
+
+ /* free e_flags */
+ if ( e_flags ) {
+ slap_sl_free( e_flags, op->o_tmpmemctx );
+ e_flags = NULL;
+ }
+
+ rc = ber_printf( ber, /*{{*/ "}N}" );
+
+ if( rc != -1 ) {
+ rc = send_ldap_controls( op, ber, rs->sr_ctrls );
+ }
+
+ if( rc != -1 ) {
+#ifdef LDAP_CONNECTIONLESS
+ if( op->o_conn && op->o_conn->c_is_udp ) {
+ if ( op->o_protocol != LDAP_VERSION2 ) {
+ rc = ber_printf( ber, /*{*/ "N}" );
+ }
+ } else
+#endif
+ if ( op->o_res_ber == NULL ) {
+ rc = ber_printf( ber, /*{*/ "N}" );
+ }
+ }
+
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY, "ber_printf failed\n", 0, 0, 0 );
+
+ if ( op->o_res_ber == NULL ) ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER, "encode entry end error" );
+ rc = rs->sr_err;
+ goto error_return;
+ }
+
+ Statslog( LDAP_DEBUG_STATS2, "%s ENTRY dn=\"%s\"\n",
+ op->o_log_prefix, rs->sr_entry->e_nname.bv_val, 0, 0, 0 );
+
+ rs_flush_entry( op, rs, NULL );
+
+ if ( op->o_res_ber == NULL ) {
+ bytes = send_ldap_ber( op, ber );
+ ber_free_buf( ber );
+
+ if ( bytes < 0 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_entry: conn %lu ber write failed.\n",
+ op->o_connid, 0, 0 );
+
+ rc = LDAP_UNAVAILABLE;
+ goto error_return;
+ }
+ rs->sr_nentries++;
+
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_entries, 1 );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
+ }
+
+ Debug( LDAP_DEBUG_TRACE,
+ "<= send_search_entry: conn %lu exit.\n", op->o_connid, 0, 0 );
+
+ rc = LDAP_SUCCESS;
+
+error_return:;
+ if ( op->o_callback ) {
+ (void)slap_cleanup_play( op, rs );
+ }
+
+ if ( e_flags ) {
+ slap_sl_free( e_flags, op->o_tmpmemctx );
+ }
+
+ /* FIXME: Can break if rs now contains an extended response */
+ if ( rs->sr_operational_attrs ) {
+ attrs_free( rs->sr_operational_attrs );
+ rs->sr_operational_attrs = NULL;
+ }
+ rs->sr_attr_flags = SLAP_ATTRS_UNDEFINED;
+
+ if ( op->o_tag == LDAP_REQ_SEARCH && rs->sr_type == REP_SEARCH ) {
+ rs_flush_entry( op, rs, NULL );
+ } else {
+ RS_ASSERT( (rs->sr_flags & REP_ENTRY_MASK) == 0 );
+ }
+
+ if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
+ if ( rs->sr_ctrls ) {
+ slap_free_ctrls( op, rs->sr_ctrls );
+ rs->sr_ctrls = NULL;
+ }
+ }
+
+ return( rc );
+}
+
+int
+slap_send_search_reference( Operation *op, SlapReply *rs )
+{
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *) &berbuf;
+ int rc = 0;
+ int bytes;
+ char *edn = rs->sr_entry ? rs->sr_entry->e_name.bv_val : "(null)";
+
+ AttributeDescription *ad_ref = slap_schema.si_ad_ref;
+ AttributeDescription *ad_entry = slap_schema.si_ad_entry;
+
+ rs->sr_type = REP_SEARCHREF;
+ if ( op->o_callback ) {
+ rc = slap_response_play( op, rs );
+ if ( rc != SLAP_CB_CONTINUE ) {
+ goto rel;
+ }
+ }
+
+ Debug( LDAP_DEBUG_TRACE,
+ "=> send_search_reference: dn=\"%s\"\n",
+ edn, 0, 0 );
+
+ if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
+ ad_entry, NULL, ACL_READ, NULL ) )
+ {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_reference: access to entry not allowed\n",
+ 0, 0, 0 );
+ rc = 1;
+ goto rel;
+ }
+
+ if ( rs->sr_entry && ! access_allowed( op, rs->sr_entry,
+ ad_ref, NULL, ACL_READ, NULL ) )
+ {
+ Debug( LDAP_DEBUG_ACL,
+ "send_search_reference: access "
+ "to reference not allowed\n",
+ 0, 0, 0 );
+ rc = 1;
+ goto rel;
+ }
+
+ if( op->o_domain_scope ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_reference: domainScope control in (%s)\n",
+ edn, 0, 0 );
+ rc = 0;
+ goto rel;
+ }
+
+ if( rs->sr_ref == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_reference: null ref in (%s)\n",
+ edn, 0, 0 );
+ rc = 1;
+ goto rel;
+ }
+
+ if( op->o_protocol < LDAP_VERSION3 ) {
+ rc = 0;
+ /* save the references for the result */
+ if( rs->sr_ref[0].bv_val != NULL ) {
+ if( value_add( &rs->sr_v2ref, rs->sr_ref ) )
+ rc = LDAP_OTHER;
+ }
+ goto rel;
+ }
+
+#ifdef LDAP_CONNECTIONLESS
+ if( op->o_conn && op->o_conn->c_is_udp ) {
+ ber = op->o_res_ber;
+ } else
+#endif
+ {
+ ber_init_w_nullc( ber, LBER_USE_DER );
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+ }
+
+ rc = ber_printf( ber, "{it{W}" /*"}"*/ , op->o_msgid,
+ LDAP_RES_SEARCH_REFERENCE, rs->sr_ref );
+
+ if( rc != -1 ) {
+ rc = send_ldap_controls( op, ber, rs->sr_ctrls );
+ }
+
+ if( rc != -1 ) {
+ rc = ber_printf( ber, /*"{"*/ "N}" );
+ }
+
+ if ( rc == -1 ) {
+ Debug( LDAP_DEBUG_ANY,
+ "send_search_reference: ber_printf failed\n", 0, 0, 0 );
+
+#ifdef LDAP_CONNECTIONLESS
+ if (!op->o_conn || op->o_conn->c_is_udp == 0)
+#endif
+ ber_free_buf( ber );
+ set_ldap_error( rs, LDAP_OTHER, "encode DN error" );
+ goto rel;
+ }
+
+ rc = 0;
+ rs_flush_entry( op, rs, NULL );
+
+#ifdef LDAP_CONNECTIONLESS
+ if (!op->o_conn || op->o_conn->c_is_udp == 0) {
+#endif
+ bytes = send_ldap_ber( op, ber );
+ ber_free_buf( ber );
+
+ if ( bytes < 0 ) {
+ rc = LDAP_UNAVAILABLE;
+ } else {
+ ldap_pvt_thread_mutex_lock( &op->o_counters->sc_mutex );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_bytes, (unsigned long)bytes );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_refs, 1 );
+ ldap_pvt_mp_add_ulong( op->o_counters->sc_pdu, 1 );
+ ldap_pvt_thread_mutex_unlock( &op->o_counters->sc_mutex );
+ }
+#ifdef LDAP_CONNECTIONLESS
+ }
+#endif
+ if ( rs->sr_ref != NULL ) {
+ int r;
+
+ for ( r = 0; !BER_BVISNULL( &rs->sr_ref[ r ] ); r++ ) {
+ Statslog( LDAP_DEBUG_STATS2, "%s REF #%d \"%s\"\n",
+ op->o_log_prefix, r, rs->sr_ref[0].bv_val,
+ 0, 0 );
+ }
+
+ } else {
+ Statslog( LDAP_DEBUG_STATS2, "%s REF \"(null)\"\n",
+ op->o_log_prefix, 0, 0, 0, 0 );
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "<= send_search_reference\n", 0, 0, 0 );
+
+ if ( 0 ) {
+rel:
+ rs_flush_entry( op, rs, NULL );
+ }
+
+ if ( op->o_callback ) {
+ (void)slap_cleanup_play( op, rs );
+ }
+
+ if ( rs->sr_flags & REP_CTRLS_MUSTBEFREED ) {
+ rs->sr_flags ^= REP_CTRLS_MUSTBEFREED; /* paranoia */
+ if ( rs->sr_ctrls ) {
+ slap_free_ctrls( op, rs->sr_ctrls );
+ rs->sr_ctrls = NULL;
+ }
+ }
+
+ return rc;
+}
+
+int
+str2result(
+ char *s,
+ int *code,
+ char **matched,
+ char **info )
+{
+ int rc;
+ char *c;
+
+ *code = LDAP_SUCCESS;
+ *matched = NULL;
+ *info = NULL;
+
+ if ( strncasecmp( s, "RESULT", STRLENOF( "RESULT" ) ) != 0 ) {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) expecting \"RESULT\"\n",
+ s, 0, 0 );
+
+ return( -1 );
+ }
+
+ rc = 0;
+ while ( (s = strchr( s, '\n' )) != NULL ) {
+ *s++ = '\0';
+ if ( *s == '\0' ) {
+ break;
+ }
+ if ( (c = strchr( s, ':' )) != NULL ) {
+ c++;
+ }
+
+ if ( strncasecmp( s, "code", STRLENOF( "code" ) ) == 0 ) {
+ char *next = NULL;
+ long retcode;
+
+ if ( c == NULL ) {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) missing value\n",
+ s, 0, 0 );
+ rc = -1;
+ continue;
+ }
+
+ while ( isspace( (unsigned char) c[ 0 ] ) ) c++;
+ if ( c[ 0 ] == '\0' ) {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) missing or empty value\n",
+ s, 0, 0 );
+ rc = -1;
+ continue;
+ }
+
+ retcode = strtol( c, &next, 10 );
+ if ( next == NULL || next == c ) {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) unable to parse value\n",
+ s, 0, 0 );
+ rc = -1;
+ continue;
+ }
+
+ while ( isspace( (unsigned char) next[ 0 ] ) && next[ 0 ] != '\n' )
+ next++;
+ if ( next[ 0 ] != '\0' && next[ 0 ] != '\n' ) {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) extra cruft after value\n",
+ s, 0, 0 );
+ rc = -1;
+ continue;
+ }
+
+ /* FIXME: what if it's larger than max int? */
+ *code = (int)retcode;
+
+ } else if ( strncasecmp( s, "matched", STRLENOF( "matched" ) ) == 0 ) {
+ if ( c != NULL ) {
+ *matched = c;
+ }
+ } else if ( strncasecmp( s, "info", STRLENOF( "info" ) ) == 0 ) {
+ if ( c != NULL ) {
+ *info = c;
+ }
+ } else {
+ Debug( LDAP_DEBUG_ANY, "str2result (%s) unknown\n",
+ s, 0, 0 );
+
+ rc = -1;
+ }
+ }
+
+ return( rc );
+}
+
+int slap_read_controls(
+ Operation *op,
+ SlapReply *rs,
+ Entry *e,
+ const struct berval *oid,
+ LDAPControl **ctrl )
+{
+ int rc;
+ struct berval bv;
+ BerElementBuffer berbuf;
+ BerElement *ber = (BerElement *) &berbuf;
+ LDAPControl c;
+ Operation myop;
+
+ Debug( LDAP_DEBUG_ANY, "%s slap_read_controls: (%s) %s\n",
+ op->o_log_prefix, oid->bv_val, e->e_dn );
+
+ rs->sr_entry = e;
+ rs->sr_attrs = ( oid == &slap_pre_read_bv ) ?
+ op->o_preread_attrs : op->o_postread_attrs;
+
+ bv.bv_len = entry_flatsize( rs->sr_entry, 0 );
+ bv.bv_val = op->o_tmpalloc( bv.bv_len, op->o_tmpmemctx );
+
+ ber_init2( ber, &bv, LBER_USE_DER );
+ ber_set_option( ber, LBER_OPT_BER_MEMCTX, &op->o_tmpmemctx );
+
+ /* create new operation */
+ myop = *op;
+ /* FIXME: o_bd needed for ACL */
+ myop.o_bd = op->o_bd;
+ myop.o_res_ber = ber;
+ myop.o_callback = NULL;
+ myop.ors_slimit = 1;
+ myop.ors_attrsonly = 0;
+
+ rc = slap_send_search_entry( &myop, rs );
+ if( rc ) return rc;
+
+ rc = ber_flatten2( ber, &c.ldctl_value, 0 );
+
+ if( rc == -1 ) return LDAP_OTHER;
+
+ c.ldctl_oid = oid->bv_val;
+ c.ldctl_iscritical = 0;
+
+ if ( *ctrl == NULL ) {
+ /* first try */
+ *ctrl = (LDAPControl *) slap_sl_calloc( 1, sizeof(LDAPControl), NULL );
+ } else {
+ /* retry: free previous try */
+ slap_sl_free( (*ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+ }
+
+ **ctrl = c;
+ return LDAP_SUCCESS;
+}
+
+/* Map API errors to protocol errors... */
+int
+slap_map_api2result( SlapReply *rs )
+{
+ switch(rs->sr_err) {
+ case LDAP_SERVER_DOWN:
+ return LDAP_UNAVAILABLE;
+ case LDAP_LOCAL_ERROR:
+ return LDAP_OTHER;
+ case LDAP_ENCODING_ERROR:
+ case LDAP_DECODING_ERROR:
+ return LDAP_PROTOCOL_ERROR;
+ case LDAP_TIMEOUT:
+ return LDAP_UNAVAILABLE;
+ case LDAP_AUTH_UNKNOWN:
+ return LDAP_AUTH_METHOD_NOT_SUPPORTED;
+ case LDAP_FILTER_ERROR:
+ rs->sr_text = "Filter error";
+ return LDAP_OTHER;
+ case LDAP_USER_CANCELLED:
+ rs->sr_text = "User cancelled";
+ return LDAP_OTHER;
+ case LDAP_PARAM_ERROR:
+ return LDAP_PROTOCOL_ERROR;
+ case LDAP_NO_MEMORY:
+ return LDAP_OTHER;
+ case LDAP_CONNECT_ERROR:
+ return LDAP_UNAVAILABLE;
+ case LDAP_NOT_SUPPORTED:
+ return LDAP_UNWILLING_TO_PERFORM;
+ case LDAP_CONTROL_NOT_FOUND:
+ return LDAP_PROTOCOL_ERROR;
+ case LDAP_NO_RESULTS_RETURNED:
+ return LDAP_NO_SUCH_OBJECT;
+ case LDAP_MORE_RESULTS_TO_RETURN:
+ rs->sr_text = "More results to return";
+ return LDAP_OTHER;
+ case LDAP_CLIENT_LOOP:
+ case LDAP_REFERRAL_LIMIT_EXCEEDED:
+ return LDAP_LOOP_DETECT;
+ default:
+ if ( LDAP_API_ERROR(rs->sr_err) ) return LDAP_OTHER;
+ return rs->sr_err;
+ }
+}
+
+
+slap_mask_t
+slap_attr_flags( AttributeName *an )
+{
+ slap_mask_t flags = SLAP_ATTRS_UNDEFINED;
+
+ if ( an == NULL ) {
+ flags |= ( SLAP_OPATTRS_NO | SLAP_USERATTRS_YES );
+
+ } else {
+ flags |= an_find( an, slap_bv_all_operational_attrs )
+ ? SLAP_OPATTRS_YES : SLAP_OPATTRS_NO;
+ flags |= an_find( an, slap_bv_all_user_attrs )
+ ? SLAP_USERATTRS_YES : SLAP_USERATTRS_NO;
+ }
+
+ return flags;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 17:39:26 +0000