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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 17:54:12 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 17:54:12 +0000
commitb527294153be3b79563c82c66102adc0004736c0 (patch)
tree9b423a224848441885190b5ea7cf0feb23510c9d /servers/slapd/slapi/plugin.c
parentInitial commit. (diff)
downloadopenldap-b527294153be3b79563c82c66102adc0004736c0.tar.xz
openldap-b527294153be3b79563c82c66102adc0004736c0.zip
Adding upstream version 2.6.7+dfsg.upstream/2.6.7+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'servers/slapd/slapi/plugin.c')
-rw-r--r--servers/slapd/slapi/plugin.c832
1 files changed, 832 insertions, 0 deletions
diff --git a/servers/slapd/slapi/plugin.c b/servers/slapd/slapi/plugin.c
new file mode 100644
index 0000000..ca5dbea
--- /dev/null
+++ b/servers/slapd/slapi/plugin.c
@@ -0,0 +1,832 @@
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2002-2022 The OpenLDAP Foundation.
+ * Portions Copyright 1997,2002-2003 IBM Corporation.
+ * 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 IBM Corporation for use in
+ * IBM products and subsequently ported to OpenLDAP Software by
+ * Steve Omrani. Additional significant contributors include:
+ * Luke Howard
+ */
+
+#include "portable.h"
+
+/*
+ * Note: if ltdl.h is not available, slapi should not be compiled
+ */
+
+#ifdef HAVE_LTDL_H
+#include "ldap_pvt_thread.h"
+#include "slap.h"
+#include "slap-config.h"
+#include "slapi.h"
+#include "lutil.h"
+
+#include <ltdl.h>
+
+static int slapi_int_load_plugin( Slapi_PBlock *, const char *, const char *, int,
+ SLAPI_FUNC *, lt_dlhandle *, ConfigArgs *c );
+
+/* pointer to link list of extended objects */
+static ExtendedOp *pGExtendedOps = NULL;
+
+/*********************************************************************
+ * Function Name: plugin_pblock_new
+ *
+ * Description: This routine creates a new Slapi_PBlock structure,
+ * loads in the plugin module and executes the init
+ * function provided by the module.
+ *
+ * Input: type - type of the plugin, such as SASL, database, etc.
+ * path - the loadpath to load the module in
+ * initfunc - name of the plugin function to execute first
+ * argc - number of arguments
+ * argv[] - an array of char pointers point to
+ * the arguments passed in via
+ * the configuration file.
+ *
+ * Output:
+ *
+ * Return Values: a pointer to a newly created Slapi_PBlock structure or
+ * NULL - function failed
+ *
+ * Messages: None
+ *********************************************************************/
+
+static Slapi_PBlock *
+plugin_pblock_new(
+ int type,
+ int argc,
+ ConfigArgs *c )
+{
+ Slapi_PBlock *pPlugin = NULL;
+ Slapi_PluginDesc *pPluginDesc = NULL;
+ lt_dlhandle hdLoadHandle;
+ int rc;
+ char **av2 = NULL, **ppPluginArgv;
+ char *path = c->argv[2];
+ char *initfunc = c->argv[3];
+
+ pPlugin = slapi_pblock_new();
+ if ( pPlugin == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+
+ slapi_pblock_set( pPlugin, SLAPI_PLUGIN_TYPE, (void *)&type );
+ slapi_pblock_set( pPlugin, SLAPI_PLUGIN_ARGC, (void *)&argc );
+
+ av2 = ldap_charray_dup( c->argv );
+ if ( av2 == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+
+ if ( argc > 0 ) {
+ ppPluginArgv = &av2[4];
+ } else {
+ ppPluginArgv = NULL;
+ }
+
+ slapi_pblock_set( pPlugin, SLAPI_PLUGIN_ARGV, (void *)ppPluginArgv );
+ slapi_pblock_set( pPlugin, SLAPI_X_CONFIG_ARGV, (void *)av2 );
+
+ rc = slapi_int_load_plugin( pPlugin, path, initfunc, 1, NULL, &hdLoadHandle, c );
+ if ( rc != 0 ) {
+ goto done;
+ }
+
+ if ( slapi_pblock_get( pPlugin, SLAPI_PLUGIN_DESCRIPTION, (void **)&pPluginDesc ) == 0 &&
+ pPluginDesc != NULL ) {
+ slapi_log_error(SLAPI_LOG_TRACE, "plugin_pblock_new",
+ "Registered plugin %s %s [%s] (%s)\n",
+ pPluginDesc->spd_id,
+ pPluginDesc->spd_version,
+ pPluginDesc->spd_vendor,
+ pPluginDesc->spd_description);
+ }
+
+done:
+ if ( rc != 0 && pPlugin != NULL ) {
+ slapi_pblock_destroy( pPlugin );
+ pPlugin = NULL;
+ if ( av2 != NULL ) {
+ ldap_charray_free( av2 );
+ }
+ }
+
+ return pPlugin;
+}
+
+/*********************************************************************
+ * Function Name: slapi_int_register_plugin
+ *
+ * Description: insert the slapi_pblock structure to a given position the end of the plugin
+ * list
+ *
+ * Input: a pointer to a plugin slapi_pblock structure to be added to
+ * the list
+ *
+ * Output: none
+ *
+ * Return Values: LDAP_SUCCESS - successfully inserted.
+ * LDAP_LOCAL_ERROR.
+ *
+ * Messages: None
+ *********************************************************************/
+int
+slapi_int_register_plugin_index(
+ Backend *be,
+ Slapi_PBlock *pPB,
+ int index )
+{
+ Slapi_PBlock *pTmpPB;
+ Slapi_PBlock *pSavePB;
+ int pos = 0, rc = LDAP_SUCCESS;
+
+ assert( be != NULL );
+
+ pTmpPB = SLAPI_BACKEND_PBLOCK( be );
+ if ( pTmpPB == NULL || index == 0 ) {
+ SLAPI_BACKEND_PBLOCK( be ) = pPB;
+ } else {
+ while ( pTmpPB != NULL && rc == LDAP_SUCCESS &&
+ ( index < 0 || pos++ < index ) ) {
+ pSavePB = pTmpPB;
+ rc = slapi_pblock_get( pTmpPB, SLAPI_IBM_PBLOCK, &pTmpPB );
+ }
+
+ if ( rc == LDAP_SUCCESS ) {
+ rc = slapi_pblock_set( pSavePB, SLAPI_IBM_PBLOCK, (void *)pPB );
+ }
+ }
+
+ if ( index >= 0 && rc == LDAP_SUCCESS ) {
+ rc = slapi_pblock_set( pPB, SLAPI_IBM_PBLOCK, (void *)pTmpPB );
+ }
+
+ return ( rc != LDAP_SUCCESS ) ? LDAP_OTHER : LDAP_SUCCESS;
+}
+
+int
+slapi_int_register_plugin(
+ Backend *be,
+ Slapi_PBlock *pPB )
+{
+ return slapi_int_register_plugin_index( be, pPB, -1 );
+}
+
+/*********************************************************************
+ * Function Name: slapi_int_get_plugins
+ *
+ * Description: get the desired type of function pointers defined
+ * in all the plugins
+ *
+ * Input: the type of the functions to get, such as pre-operation,etc.
+ *
+ * Output: none
+ *
+ * Return Values: this routine returns a pointer to an array of function
+ * pointers containing backend-specific plugin functions
+ * followed by global plugin functions
+ *
+ * Messages: None
+ *********************************************************************/
+int
+slapi_int_get_plugins(
+ Backend *be,
+ int functype,
+ SLAPI_FUNC **ppFuncPtrs )
+{
+
+ Slapi_PBlock *pCurrentPB;
+ SLAPI_FUNC FuncPtr;
+ SLAPI_FUNC *pTmpFuncPtr;
+ int numPB = 0;
+ int rc = LDAP_SUCCESS;
+
+ assert( ppFuncPtrs != NULL );
+ *ppFuncPtrs = NULL;
+
+ if ( be == NULL ) {
+ goto done;
+ }
+
+ pCurrentPB = SLAPI_BACKEND_PBLOCK( be );
+
+ while ( pCurrentPB != NULL && rc == LDAP_SUCCESS ) {
+ rc = slapi_pblock_get( pCurrentPB, functype, &FuncPtr );
+ if ( rc == LDAP_SUCCESS ) {
+ if ( FuncPtr != NULL ) {
+ numPB++;
+ }
+ rc = slapi_pblock_get( pCurrentPB,
+ SLAPI_IBM_PBLOCK, &pCurrentPB );
+ }
+ }
+
+ if ( numPB == 0 ) {
+ rc = LDAP_SUCCESS;
+ goto done;
+ }
+
+ /*
+ * Now, build the function pointer array of backend-specific
+ * plugins followed by global plugins.
+ */
+ *ppFuncPtrs = pTmpFuncPtr =
+ (SLAPI_FUNC *)ch_malloc( ( numPB + 1 ) * sizeof(SLAPI_FUNC) );
+ if ( ppFuncPtrs == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto done;
+ }
+
+ pCurrentPB = SLAPI_BACKEND_PBLOCK( be );
+
+ while ( pCurrentPB != NULL && rc == LDAP_SUCCESS ) {
+ rc = slapi_pblock_get( pCurrentPB, functype, &FuncPtr );
+ if ( rc == LDAP_SUCCESS ) {
+ if ( FuncPtr != NULL ) {
+ *pTmpFuncPtr = FuncPtr;
+ pTmpFuncPtr++;
+ }
+ rc = slapi_pblock_get( pCurrentPB,
+ SLAPI_IBM_PBLOCK, &pCurrentPB );
+ }
+ }
+
+ *pTmpFuncPtr = NULL;
+
+
+done:
+ if ( rc != LDAP_SUCCESS && *ppFuncPtrs != NULL ) {
+ ch_free( *ppFuncPtrs );
+ *ppFuncPtrs = NULL;
+ }
+
+ return rc;
+}
+
+/*********************************************************************
+ * Function Name: createExtendedOp
+ *
+ * Description: Creates an extended operation structure and
+ * initializes the fields
+ *
+ * Return value: A newly allocated structure or NULL
+ ********************************************************************/
+ExtendedOp *
+createExtendedOp()
+{
+ ExtendedOp *ret;
+
+ ret = (ExtendedOp *)slapi_ch_malloc(sizeof(ExtendedOp));
+ ret->ext_oid.bv_val = NULL;
+ ret->ext_oid.bv_len = 0;
+ ret->ext_func = NULL;
+ ret->ext_be = NULL;
+ ret->ext_next = NULL;
+
+ return ret;
+}
+
+
+/*********************************************************************
+ * Function Name: slapi_int_unregister_extop
+ *
+ * Description: This routine removes the ExtendedOp structures
+ * asscoiated with a particular extended operation
+ * plugin.
+ *
+ * Input: pBE - pointer to a backend structure
+ * opList - pointer to a linked list of extended
+ * operation structures
+ * pPB - pointer to a slapi parameter block
+ *
+ * Output:
+ *
+ * Return Value: none
+ *
+ * Messages: None
+ *********************************************************************/
+void
+slapi_int_unregister_extop(
+ Backend *pBE,
+ ExtendedOp **opList,
+ Slapi_PBlock *pPB )
+{
+ ExtendedOp *pTmpExtOp, *backExtOp;
+ char **pTmpOIDs;
+ int i;
+
+#if 0
+ assert( pBE != NULL); /* unused */
+#endif /* 0 */
+ assert( opList != NULL );
+ assert( pPB != NULL );
+
+ if ( *opList == NULL ) {
+ return;
+ }
+
+ slapi_pblock_get( pPB, SLAPI_PLUGIN_EXT_OP_OIDLIST, &pTmpOIDs );
+ if ( pTmpOIDs == NULL ) {
+ return;
+ }
+
+ for ( i = 0; pTmpOIDs[i] != NULL; i++ ) {
+ backExtOp = NULL;
+ pTmpExtOp = *opList;
+ for ( ; pTmpExtOp != NULL; pTmpExtOp = pTmpExtOp->ext_next) {
+ int rc;
+ rc = strcasecmp( pTmpExtOp->ext_oid.bv_val,
+ pTmpOIDs[ i ] );
+ if ( rc == 0 ) {
+ if ( backExtOp == NULL ) {
+ *opList = pTmpExtOp->ext_next;
+ } else {
+ backExtOp->ext_next
+ = pTmpExtOp->ext_next;
+ }
+
+ ch_free( pTmpExtOp );
+ break;
+ }
+ backExtOp = pTmpExtOp;
+ }
+ }
+}
+
+
+/*********************************************************************
+ * Function Name: slapi_int_register_extop
+ *
+ * Description: This routine creates a new ExtendedOp structure, loads
+ * in the extended op module and put the extended op function address
+ * in the structure. The function will not be executed in
+ * this routine.
+ *
+ * Input: pBE - pointer to a backend structure
+ * opList - pointer to a linked list of extended
+ * operation structures
+ * pPB - pointer to a slapi parameter block
+ *
+ * Output:
+ *
+ * Return Value: an LDAP return code
+ *
+ * Messages: None
+ *********************************************************************/
+int
+slapi_int_register_extop(
+ Backend *pBE,
+ ExtendedOp **opList,
+ Slapi_PBlock *pPB )
+{
+ ExtendedOp *pTmpExtOp = NULL;
+ SLAPI_FUNC tmpFunc;
+ char **pTmpOIDs;
+ int rc = LDAP_OTHER;
+ int i;
+
+ if ( (*opList) == NULL ) {
+ *opList = createExtendedOp();
+ if ( (*opList) == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto error_return;
+ }
+ pTmpExtOp = *opList;
+
+ } else { /* Find the end of the list */
+ for ( pTmpExtOp = *opList; pTmpExtOp->ext_next != NULL;
+ pTmpExtOp = pTmpExtOp->ext_next )
+ ; /* EMPTY */
+ pTmpExtOp->ext_next = createExtendedOp();
+ if ( pTmpExtOp->ext_next == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ goto error_return;
+ }
+ pTmpExtOp = pTmpExtOp->ext_next;
+ }
+
+ rc = slapi_pblock_get( pPB,SLAPI_PLUGIN_EXT_OP_OIDLIST, &pTmpOIDs );
+ if ( rc != 0 ) {
+ rc = LDAP_OTHER;
+ goto error_return;
+ }
+
+ rc = slapi_pblock_get(pPB,SLAPI_PLUGIN_EXT_OP_FN, &tmpFunc);
+ if ( rc != 0 ) {
+ rc = LDAP_OTHER;
+ goto error_return;
+ }
+
+ if ( (pTmpOIDs == NULL) || (tmpFunc == NULL) ) {
+ rc = LDAP_OTHER;
+ goto error_return;
+ }
+
+ for ( i = 0; pTmpOIDs[i] != NULL; i++ ) {
+ pTmpExtOp->ext_oid.bv_val = pTmpOIDs[i];
+ pTmpExtOp->ext_oid.bv_len = strlen( pTmpOIDs[i] );
+ pTmpExtOp->ext_func = tmpFunc;
+ pTmpExtOp->ext_be = pBE;
+ if ( pTmpOIDs[i + 1] != NULL ) {
+ pTmpExtOp->ext_next = createExtendedOp();
+ if ( pTmpExtOp->ext_next == NULL ) {
+ rc = LDAP_NO_MEMORY;
+ break;
+ }
+ pTmpExtOp = pTmpExtOp->ext_next;
+ }
+ }
+
+error_return:
+ return rc;
+}
+
+/*********************************************************************
+ * Function Name: slapi_int_get_extop_plugin
+ *
+ * Description: This routine gets the function address for a given function
+ * name.
+ *
+ * Input:
+ * funcName - name of the extended op function, ie. an OID.
+ *
+ * Output: pFuncAddr - the function address of the requested function name.
+ *
+ * Return Values: a pointer to a newly created ExtendOp structure or
+ * NULL - function failed
+ *
+ * Messages: None
+ *********************************************************************/
+int
+slapi_int_get_extop_plugin(
+ struct berval *reqoid,
+ SLAPI_FUNC *pFuncAddr )
+{
+ ExtendedOp *pTmpExtOp;
+
+ assert( reqoid != NULL );
+ assert( pFuncAddr != NULL );
+
+ *pFuncAddr = NULL;
+
+ if ( pGExtendedOps == NULL ) {
+ return LDAP_OTHER;
+ }
+
+ pTmpExtOp = pGExtendedOps;
+ while ( pTmpExtOp != NULL ) {
+ int rc;
+
+ rc = strcasecmp( reqoid->bv_val, pTmpExtOp->ext_oid.bv_val );
+ if ( rc == 0 ) {
+ *pFuncAddr = pTmpExtOp->ext_func;
+ break;
+ }
+ pTmpExtOp = pTmpExtOp->ext_next;
+ }
+
+ return ( *pFuncAddr == NULL ? 1 : 0 );
+}
+
+/***************************************************************************
+ * This function is similar to slapi_int_get_extop_plugin above. except it returns one OID
+ * per call. It is called from root_dse_info (root_dse.c).
+ * The function is a modified version of get_supported_extop (file extended.c).
+ ***************************************************************************/
+struct berval *
+slapi_int_get_supported_extop( int index )
+{
+ ExtendedOp *ext;
+
+ for ( ext = pGExtendedOps ; ext != NULL && --index >= 0;
+ ext = ext->ext_next) {
+ ; /* empty */
+ }
+
+ if ( ext == NULL ) {
+ return NULL;
+ }
+
+ return &ext->ext_oid ;
+}
+
+/*********************************************************************
+ * Function Name: slapi_int_load_plugin
+ *
+ * Description: This routine loads the specified DLL, gets and executes the init function
+ * if requested.
+ *
+ * Input:
+ * pPlugin - a pointer to a Slapi_PBlock struct which will be passed to
+ * the DLL init function.
+ * path - path name of the DLL to be load.
+ * initfunc - either the DLL initialization function or an OID of the
+ * loaded extended operation.
+ * doInit - if it is TRUE, execute the init function, otherwise, save the
+ * function address but not execute it.
+ *
+ * Output: pInitFunc - the function address of the loaded function. This param
+ * should be not be null if doInit is FALSE.
+ * pLdHandle - handle returned by lt_dlopen()
+ *
+ * Return Values: LDAP_SUCCESS, LDAP_LOCAL_ERROR
+ *
+ * Messages: None
+ *********************************************************************/
+
+static int
+slapi_int_load_plugin(
+ Slapi_PBlock *pPlugin,
+ const char *path,
+ const char *initfunc,
+ int doInit,
+ SLAPI_FUNC *pInitFunc,
+ lt_dlhandle *pLdHandle,
+ ConfigArgs *c )
+{
+ int rc = LDAP_SUCCESS;
+ SLAPI_FUNC fpInitFunc = NULL;
+
+ assert( pLdHandle != NULL );
+
+ if ( lt_dlinit() ) {
+ return LDAP_LOCAL_ERROR;
+ }
+
+ /* load in the module */
+ *pLdHandle = lt_dlopen( path );
+ if ( *pLdHandle == NULL ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "failed to load plugin %s: %s",
+ path, lt_dlerror() );
+ Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+ return LDAP_LOCAL_ERROR;
+ }
+
+ fpInitFunc = (SLAPI_FUNC)lt_dlsym( *pLdHandle, initfunc );
+ if ( fpInitFunc == NULL ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ), "failed to find symbol %s in plugin %s: %s",
+ initfunc, path, lt_dlerror() );
+ Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+ lt_dlclose( *pLdHandle );
+ return LDAP_LOCAL_ERROR;
+ }
+
+ if ( doInit ) {
+ rc = ( *fpInitFunc )( pPlugin );
+ if ( rc != LDAP_SUCCESS ) {
+ lt_dlclose( *pLdHandle );
+ }
+
+ } else {
+ *pInitFunc = fpInitFunc;
+ }
+
+ return rc;
+}
+
+/*
+ * Special support for computed attribute plugins
+ */
+int
+slapi_int_call_plugins(
+ Backend *be,
+ int funcType,
+ Slapi_PBlock *pPB )
+{
+
+ int rc = 0;
+ SLAPI_FUNC *pGetPlugin = NULL, *tmpPlugin = NULL;
+
+ if ( pPB == NULL ) {
+ return 1;
+ }
+
+ rc = slapi_int_get_plugins( be, funcType, &tmpPlugin );
+ if ( rc != LDAP_SUCCESS || tmpPlugin == NULL ) {
+ /* Nothing to do, front-end should ignore. */
+ return rc;
+ }
+
+ for ( pGetPlugin = tmpPlugin ; *pGetPlugin != NULL; pGetPlugin++ ) {
+ rc = (*pGetPlugin)(pPB);
+
+ /*
+ * Only non-postoperation plugins abort processing on
+ * failure (confirmed with SLAPI specification).
+ */
+ if ( !SLAPI_PLUGIN_IS_POST_FN( funcType ) && rc != 0 ) {
+ /*
+ * Plugins generally return negative error codes
+ * to indicate failure, although in the case of
+ * bind plugins they may return SLAPI_BIND_xxx
+ */
+ break;
+ }
+ }
+
+ slapi_ch_free( (void **)&tmpPlugin );
+
+ return rc;
+}
+
+int
+slapi_int_read_config(
+ struct config_args_s *c )
+{
+ int iType = -1;
+ int numPluginArgc = 0;
+
+ if ( c->argc < 4 ) {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "missing arguments "
+ "in \"plugin <plugin_type> <lib_path> "
+ "<init_function> [<arguments>]\" line" );
+ Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+ return 1;
+ }
+
+ /* automatically instantiate overlay if necessary */
+ if ( !slapi_over_is_inst( c->be ) ) {
+ if ( slapi_over_config( c->be, &c->reply ) != 0 ) {
+ Debug( LDAP_DEBUG_ANY, "%s: "
+ "Failed to instantiate SLAPI overlay: "
+ "err=%d msg=\"%s\"\n", c->log, c->reply.err, c->reply.msg );
+ return -1;
+ }
+ }
+
+ if ( strcasecmp( c->argv[1], "preoperation" ) == 0 ) {
+ iType = SLAPI_PLUGIN_PREOPERATION;
+ } else if ( strcasecmp( c->argv[1], "postoperation" ) == 0 ) {
+ iType = SLAPI_PLUGIN_POSTOPERATION;
+ } else if ( strcasecmp( c->argv[1], "extendedop" ) == 0 ) {
+ iType = SLAPI_PLUGIN_EXTENDEDOP;
+ } else if ( strcasecmp( c->argv[1], "object" ) == 0 ) {
+ iType = SLAPI_PLUGIN_OBJECT;
+ } else {
+ snprintf( c->cr_msg, sizeof( c->cr_msg ),
+ "invalid plugin type \"%s\"", c->argv[1] );
+ Debug( LDAP_DEBUG_ANY, "%s: %s.\n", c->log, c->cr_msg );
+ return 1;
+ }
+
+ numPluginArgc = c->argc - 4;
+
+ if ( iType == SLAPI_PLUGIN_PREOPERATION ||
+ iType == SLAPI_PLUGIN_EXTENDEDOP ||
+ iType == SLAPI_PLUGIN_POSTOPERATION ||
+ iType == SLAPI_PLUGIN_OBJECT ) {
+ int rc;
+ Slapi_PBlock *pPlugin;
+
+ pPlugin = plugin_pblock_new( iType, numPluginArgc, c->argv );
+ if (pPlugin == NULL) {
+ return 1;
+ }
+
+ if (iType == SLAPI_PLUGIN_EXTENDEDOP) {
+ rc = slapi_int_register_extop(c->be, &pGExtendedOps, pPlugin);
+ if ( rc != LDAP_SUCCESS ) {
+ slapi_pblock_destroy( pPlugin );
+ return 1;
+ }
+ }
+
+ rc = slapi_int_register_plugin_index( c->be, pPlugin, c->valx );
+ if ( rc != LDAP_SUCCESS ) {
+ if ( iType == SLAPI_PLUGIN_EXTENDEDOP ) {
+ slapi_int_unregister_extop( c->be, &pGExtendedOps, pPlugin );
+ }
+ slapi_pblock_destroy( pPlugin );
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+int
+slapi_int_unregister_plugin(
+ Backend *be,
+ Slapi_PBlock *pPlugin,
+ Slapi_PBlock *pPrev
+)
+{
+ int type;
+
+ assert( pPlugin != NULL );
+
+ slapi_pblock_get( pPlugin, SLAPI_PLUGIN_TYPE, (void *)&type );
+ if ( type == SLAPI_PLUGIN_EXTENDEDOP ) {
+ slapi_int_unregister_extop( be, &pGExtendedOps, pPlugin );
+ }
+
+ if ( pPrev != NULL ) {
+ Slapi_PBlock *pNext = NULL;
+
+ slapi_pblock_get( pPlugin, SLAPI_IBM_PBLOCK, &pNext );
+ slapi_pblock_set( pPrev, SLAPI_IBM_PBLOCK, &pNext );
+ }
+ slapi_pblock_destroy( pPlugin );
+
+ return LDAP_SUCCESS;
+}
+
+int
+slapi_int_unregister_plugins(
+ Backend *be,
+ int index
+)
+{
+ Slapi_PBlock *pTmpPB = NULL;
+ Slapi_PBlock *pSavePB = NULL;
+ int rc = LDAP_SUCCESS;
+
+ pTmpPB = SLAPI_BACKEND_PBLOCK( be );
+ if ( pTmpPB == NULL ) {
+ return ( index < 0 ) ? LDAP_SUCCESS : LDAP_OTHER;
+ }
+
+ if ( index < 0 ) {
+ /* All plugins must go */
+ while ( pTmpPB != NULL && rc == LDAP_SUCCESS ) {
+ pSavePB = pTmpPB;
+ rc = slapi_pblock_get( pTmpPB, SLAPI_IBM_PBLOCK, &pTmpPB );
+ if ( pSavePB != NULL ) {
+ slapi_int_unregister_plugin( be, pSavePB, NULL );
+ }
+ }
+ } else if ( index == 0 ) {
+ slapi_pblock_get( pTmpPB, SLAPI_IBM_PBLOCK, &pSavePB );
+ SLAPI_BACKEND_PBLOCK( be ) = pSavePB;
+ slapi_int_unregister_plugin( be, pTmpPB, NULL );
+ } else {
+ int pos = -1;
+ while ( pTmpPB != NULL && rc == LDAP_SUCCESS && ++pos < index ) {
+ pSavePB = pTmpPB;
+ rc = slapi_pblock_get( pTmpPB, SLAPI_IBM_PBLOCK, &pTmpPB );
+ }
+ if ( pos == index ) {
+ slapi_int_unregister_plugin( be, pTmpPB, pSavePB );
+ }
+ }
+ return rc;
+}
+
+void
+slapi_int_plugin_unparse(
+ Backend *be,
+ BerVarray *out
+)
+{
+ Slapi_PBlock *pp;
+ int i, j;
+ char **argv, ibuf[32], *ptr;
+ struct berval idx, bv;
+
+ *out = NULL;
+ idx.bv_val = ibuf;
+ i = 0;
+
+ for ( pp = SLAPI_BACKEND_PBLOCK( be );
+ pp != NULL;
+ slapi_pblock_get( pp, SLAPI_IBM_PBLOCK, &pp ) )
+ {
+ slapi_pblock_get( pp, SLAPI_X_CONFIG_ARGV, &argv );
+ if ( argv == NULL ) /* could be dynamic plugin */
+ continue;
+ idx.bv_len = snprintf( idx.bv_val, sizeof( ibuf ), "{%d}", i );
+ if ( idx.bv_len >= sizeof( ibuf ) ) {
+ /* FIXME: just truncating by now */
+ idx.bv_len = sizeof( ibuf ) - 1;
+ }
+ bv.bv_len = idx.bv_len;
+ for (j=1; argv[j]; j++) {
+ bv.bv_len += strlen(argv[j]);
+ if ( j ) bv.bv_len++;
+ }
+ bv.bv_val = ch_malloc( bv.bv_len + 1 );
+ ptr = lutil_strcopy( bv.bv_val, ibuf );
+ for (j=1; argv[j]; j++) {
+ if ( j ) *ptr++ = ' ';
+ ptr = lutil_strcopy( ptr, argv[j] );
+ }
+ ber_bvarray_add( out, &bv );
+ }
+}
+#endif /* HAVE_LTDL_H */