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/* ulogd_filter_IP2STR.c, Version $Revision: 1500 $
*
* ulogd interpreter plugin for internal IP storage format to string conversion
*
* (C) 2008 by Eric Leblond <eric@inl.fr>
*
* Based on ulogd_filter_IFINDEX.c Harald Welte <laforge@gnumonks.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation
*
* 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
*
* $Id: ulogd_filter_IFINDEX.c 1500 2005-10-03 16:54:02Z laforge $
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <arpa/inet.h>
#include <ulogd/ulogd.h>
#define IPADDR_LENGTH 128
enum input_keys {
KEY_OOB_FAMILY,
KEY_IP_SADDR,
START_KEY = KEY_IP_SADDR,
KEY_IP_DADDR,
KEY_ORIG_IP_SADDR,
KEY_ORIG_IP_DADDR,
KEY_REPLY_IP_SADDR,
KEY_REPLY_IP_DADDR,
MAX_KEY = KEY_REPLY_IP_DADDR,
};
static struct ulogd_key ip2str_inp[] = {
[KEY_OOB_FAMILY] = {
.type = ULOGD_RET_UINT8,
.flags = ULOGD_RETF_NONE,
.name = "oob.family",
},
[KEY_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "ip.saddr",
},
[KEY_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "ip.daddr",
},
[KEY_ORIG_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "orig.ip.saddr",
},
[KEY_ORIG_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "orig.ip.daddr",
},
[KEY_REPLY_IP_SADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "reply.ip.saddr",
},
[KEY_REPLY_IP_DADDR] = {
.type = ULOGD_RET_IPADDR,
.flags = ULOGD_RETF_NONE|ULOGD_KEYF_OPTIONAL,
.name = "reply.ip.daddr",
},
};
static struct ulogd_key ip2str_keys[] = {
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "ip.saddr.str",
},
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "ip.daddr.str",
},
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "orig.ip.saddr.str",
},
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "orig.ip.daddr.str",
},
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "reply.ip.saddr.str",
},
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "reply.ip.daddr.str",
},
};
static char *ip2str(struct ulogd_key* inp, int index, char family)
{
char tmp[IPADDR_LENGTH];
switch (family) {
case AF_INET6:
inet_ntop(AF_INET6,
&GET_VALUE(inp, index).ptr,
tmp, sizeof(tmp));
break;
case AF_INET:
inet_ntop(AF_INET,
&GET_VALUE(inp, index).ui32,
tmp, sizeof(tmp));
break;
default:
/* TODO error handling */
ulogd_log(ULOGD_NOTICE, "Unknown protocol family\n");
return NULL;
}
return strdup(tmp);
}
static int interp_ip2str(struct ulogd_pluginstance *pi)
{
struct ulogd_key *ret = pi->output.keys;
struct ulogd_key *inp = pi->input.keys;
int i;
int oob_family = GET_VALUE(inp, KEY_OOB_FAMILY).ui8;
/* Iter on all addr fields */
for(i = START_KEY; i < MAX_KEY; i++) {
if (pp_is_valid(inp, i)) {
ret[i-1].u.value.ptr = ip2str(inp, i, oob_family);
ret[i-1].flags |= ULOGD_RETF_VALID;
}
}
return 0;
}
static struct ulogd_plugin ip2str_pluging = {
.name = "IP2STR",
.input = {
.keys = ip2str_inp,
.num_keys = ARRAY_SIZE(ip2str_inp),
.type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
},
.output = {
.keys = ip2str_keys,
.num_keys = ARRAY_SIZE(ip2str_keys),
.type = ULOGD_DTYPE_PACKET | ULOGD_DTYPE_FLOW,
},
.interp = &interp_ip2str,
.version = ULOGD_VERSION,
};
void __attribute__ ((constructor)) init(void);
void init(void)
{
ulogd_register_plugin(&ip2str_pluging);
}
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