diff options
Diffstat (limited to 'servers/slapd/back-relay/init.c')
| -rw-r--r-- | servers/slapd/back-relay/init.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/servers/slapd/back-relay/init.c b/servers/slapd/back-relay/init.c new file mode 100644 index 0000000..efad958 --- /dev/null +++ b/servers/slapd/back-relay/init.c @@ -0,0 +1,255 @@ +/* init.c - initialize relay backend */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2004-2022 The OpenLDAP Foundation. + * Portions Copyright 2004 Pierangelo Masarati. + * 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>. + */ +/* ACKNOWLEDGEMENTS: + * This work was initially developed by Pierangelo Masarati for inclusion + * in OpenLDAP Software. + */ + +#include "portable.h" + +#include <stdio.h> +#include <ac/string.h> + +#include "slap.h" +#include "slap-config.h" +#include "back-relay.h" + +static ConfigDriver relay_back_cf; + +static ConfigTable relaycfg[] = { + { "relay", "relay", 2, 2, 0, + ARG_MAGIC|ARG_DN|ARG_QUOTE, + relay_back_cf, "( OLcfgDbAt:5.1 " + "NAME 'olcRelay' " + "DESC 'Relay DN' " + "EQUALITY distinguishedNameMatch " + "SYNTAX OMsDN " + "SINGLE-VALUE )", + NULL, NULL }, + { NULL } +}; + +static ConfigOCs relayocs[] = { + { "( OLcfgDbOc:5.1 " + "NAME 'olcRelayConfig' " + "DESC 'Relay backend configuration' " + "SUP olcDatabaseConfig " + "MAY ( olcRelay " + ") )", + Cft_Database, relaycfg}, + { NULL, 0, NULL } +}; + +static int +relay_back_cf( ConfigArgs *c ) +{ + relay_back_info *ri = ( relay_back_info * )c->be->be_private; + int rc = 0; + + if ( c->op == SLAP_CONFIG_EMIT ) { + if ( ri != NULL && !BER_BVISNULL( &ri->ri_realsuffix ) ) { + value_add_one( &c->rvalue_vals, &ri->ri_realsuffix ); + return 0; + } + return 1; + + } else if ( c->op == LDAP_MOD_DELETE ) { + if ( !BER_BVISNULL( &ri->ri_realsuffix ) ) { + ch_free( ri->ri_realsuffix.bv_val ); + BER_BVZERO( &ri->ri_realsuffix ); + ri->ri_bd = NULL; + return 0; + } + return 1; + + } else { + BackendDB *bd; + + assert( ri != NULL ); + assert( BER_BVISNULL( &ri->ri_realsuffix ) ); + + if ( c->be->be_nsuffix == NULL ) { + snprintf( c->cr_msg, sizeof( c->cr_msg), + "\"relay\" directive " + "must appear after \"suffix\"" ); + Log( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR, + "%s: %s.\n", c->log, c->cr_msg ); + rc = 1; + goto relay_done; + } + + if ( !BER_BVISNULL( &c->be->be_nsuffix[ 1 ] ) ) { + snprintf( c->cr_msg, sizeof( c->cr_msg), + "relaying of multiple suffix " + "database not supported" ); + Log( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR, + "%s: %s.\n", c->log, c->cr_msg ); + rc = 1; + goto relay_done; + } + + bd = select_backend( &c->value_ndn, 1 ); + if ( bd == NULL ) { + snprintf( c->cr_msg, sizeof( c->cr_msg), + "cannot find database " + "of relay dn \"%s\" " + "in \"olcRelay <dn>\"\n", + c->value_dn.bv_val ); + Log( LDAP_DEBUG_CONFIG, LDAP_LEVEL_ERR, + "%s: %s.\n", c->log, c->cr_msg ); + + } else if ( bd->be_private == c->be->be_private ) { + snprintf( c->cr_msg, sizeof( c->cr_msg), + "relay dn \"%s\" would call self " + "in \"relay <dn>\" line\n", + c->value_dn.bv_val ); + Log( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR, + "%s: %s.\n", c->log, c->cr_msg ); + rc = 1; + goto relay_done; + } + + ri->ri_realsuffix = c->value_ndn; + BER_BVZERO( &c->value_ndn ); + +relay_done:; + ch_free( c->value_dn.bv_val ); + ch_free( c->value_ndn.bv_val ); + } + + return rc; +} + +int +relay_back_initialize( BackendInfo *bi ) +{ + bi->bi_init = 0; + bi->bi_open = 0; + bi->bi_config = 0; + bi->bi_close = 0; + bi->bi_destroy = 0; + + bi->bi_db_init = relay_back_db_init; + bi->bi_db_config = config_generic_wrapper; + bi->bi_db_open = relay_back_db_open; +#if 0 + bi->bi_db_close = relay_back_db_close; +#endif + bi->bi_db_destroy = relay_back_db_destroy; + + bi->bi_op_bind = relay_back_op_bind; + bi->bi_op_search = relay_back_op_search; + bi->bi_op_compare = relay_back_op_compare; + bi->bi_op_modify = relay_back_op_modify; + bi->bi_op_modrdn = relay_back_op_modrdn; + bi->bi_op_add = relay_back_op_add; + bi->bi_op_delete = relay_back_op_delete; + bi->bi_extended = relay_back_op_extended; + bi->bi_entry_release_rw = relay_back_entry_release_rw; + bi->bi_entry_get_rw = relay_back_entry_get_rw; + bi->bi_operational = relay_back_operational; + bi->bi_has_subordinates = relay_back_has_subordinates; + + bi->bi_cf_ocs = relayocs; + + return config_register_schema( relaycfg, relayocs ); +} + +int +relay_back_db_init( Backend *be, ConfigReply *cr) +{ + relay_back_info *ri; + + be->be_private = NULL; + + ri = (relay_back_info *) ch_calloc( 1, RELAY_INFO_SIZE ); + if ( ri == NULL ) { + return -1; + } + + ri->ri_bd = NULL; + BER_BVZERO( &ri->ri_realsuffix ); + ri->ri_massage = 0; + + be->be_cf_ocs = be->bd_info->bi_cf_ocs; + + be->be_private = (void *)ri; + + return 0; +} + +int +relay_back_db_open( Backend *be, ConfigReply *cr ) +{ + relay_back_info *ri = (relay_back_info *)be->be_private; + + assert( ri != NULL ); + + if ( !BER_BVISNULL( &ri->ri_realsuffix ) ) { + ri->ri_bd = select_backend( &ri->ri_realsuffix, 1 ); + + /* must be there: it was during config! */ + if ( ri->ri_bd == NULL ) { + snprintf( cr->msg, sizeof( cr->msg), + "cannot find database " + "of relay dn \"%s\" " + "in \"olcRelay <dn>\"\n", + ri->ri_realsuffix.bv_val ); + Log( LDAP_DEBUG_ANY, LDAP_LEVEL_ERR, + "relay_back_db_open: %s.\n", cr->msg ); + + return 1; + } + + /* inherit controls */ + AC_MEMCPY( be->bd_self->be_ctrls, ri->ri_bd->be_ctrls, sizeof( be->be_ctrls ) ); + + } else { + /* inherit all? */ + AC_MEMCPY( be->bd_self->be_ctrls, frontendDB->be_ctrls, sizeof( be->be_ctrls ) ); + } + + return 0; +} + +int +relay_back_db_close( Backend *be, ConfigReply *cr ) +{ + return 0; +} + +int +relay_back_db_destroy( Backend *be, ConfigReply *cr) +{ + relay_back_info *ri = (relay_back_info *)be->be_private; + + if ( ri ) { + if ( !BER_BVISNULL( &ri->ri_realsuffix ) ) { + ch_free( ri->ri_realsuffix.bv_val ); + } + ch_free( ri ); + } + + return 0; +} + +#if SLAPD_RELAY == SLAPD_MOD_DYNAMIC + +/* conditionally define the init_module() function */ +SLAP_BACKEND_INIT_MODULE( relay ) + +#endif /* SLAPD_RELAY == SLAPD_MOD_DYNAMIC */ |