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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/************************************************************
testgetip.c
This source file provides an example of a pre-operation plug-in
function that gets the IP address of the client and the IP
address of the server.
testgetip logs this information to the server error log.
To test this plug-in function, stop the server, edit the dse.ldif file
(in the <server_root>/slapd-<server_id>/config directory)
and add the following lines before restarting the server :
dn: cn=Test GetIP,cn=plugins,cn=config
objectClass: top
objectClass: nsSlapdPlugin
objectClass: extensibleObject
cn: Test GetIP
nsslapd-pluginPath: <server_root>/plugins/slapd/slapi/examples/libtest-plugin.so
nsslapd-pluginInitfunc: testgetip_init
nsslapd-pluginType: preoperation
nsslapd-pluginEnabled: on
nsslapd-plugin-depends-on-type: database
nsslapd-pluginId: test-getip
************************************************************/
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#ifndef _WIN32
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#include "slapi-plugin.h"
#include "nspr.h"
Slapi_PluginDesc getippdesc = { "test-getip", "Fedora Project", "1.0.4",
"sample pre-operation plugin" };
static char *netaddr2str( PRNetAddr *addrp, char *buf, size_t buflen );
int
testgetip( Slapi_PBlock *pb )
{
void *conn;
PRNetAddr client_addr, server_addr;
char addrbuf[ 512 ], *addrstr;
/*
* Don't do anything for internal operations (NULL connection).
*/
if ( slapi_pblock_get( pb, SLAPI_CONNECTION, &conn ) != 0 ||
( conn == NULL )) {
return( 0 );
}
/*
* Get the client's IP address and log it
*/
if ( slapi_pblock_get( pb, SLAPI_CONN_CLIENTNETADDR, &client_addr )
!= 0 || ( client_addr.raw.family == 0 )) {
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip",
"Could not get client IP.\n" );
} else if (( addrstr = netaddr2str( &client_addr, addrbuf,
sizeof(addrbuf))) != NULL ) {
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip",
"Client's IP address is %s\n", addrstr );
}
/*
* Get the destination (server) IP address and log it
*/
if ( slapi_pblock_get( pb, SLAPI_CONN_SERVERNETADDR, &server_addr )
!= 0 || ( server_addr.raw.family == 0 )) {
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip",
"Could not get server IP.\n" );
} else if (( addrstr = netaddr2str( &server_addr, addrbuf,
sizeof(addrbuf))) != NULL ) {
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip",
"Client sent request to server IP %s\n", addrstr );
}
return( 0 );
}
#ifdef _WIN32
__declspec(dllexport)
#endif
int
testgetip_init( Slapi_PBlock *pb )
{
/* Register the pre-operation plug-in function. */
if ( slapi_pblock_set( pb, SLAPI_PLUGIN_VERSION,
SLAPI_PLUGIN_VERSION_01 ) != 0 ||
slapi_pblock_set( pb, SLAPI_PLUGIN_DESCRIPTION,
(void *)&getippdesc ) != 0 ||
slapi_pblock_set( pb, SLAPI_PLUGIN_PRE_SEARCH_FN,
(void *) testgetip ) != 0 ) {
slapi_log_error( SLAPI_LOG_FATAL, "testgetip_init",
"Failed to set version and functions.\n" );
return( -1 );
}
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip_init",
"Registered preop plugins.\n" );
return( 0 );
}
/*
* Utility function to convert a PRNetAddr to a human readable string.
*/
static char *
netaddr2str( PRNetAddr *addrp, char *buf, size_t buflen )
{
char *addrstr;
*buf = '\0';
if ( PR_NetAddrToString( addrp, buf, buflen ) != PR_SUCCESS ) {
slapi_log_error( SLAPI_LOG_PLUGIN, "testgetip",
"PR_NetAddrToString failed.\n" );
return( NULL );
}
/* skip past leading ::ffff: if IPv4 address */
if ( strlen( buf ) > 7 && strncmp( buf, "::ffff:", 7 ) == 0 ) {
addrstr = buf + 7;
} else {
addrstr = buf;
}
return( addrstr );
}
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