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/* ulogd_filter_MAC2STR.c, Version $Revision: 1500 $
*
* ulogd interpreter plugin for HWMAC
*
* (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_RAW_MAC,
KEY_RAW_MACLEN,
};
enum output_keys {
KEY_MAC_SADDR,
};
static struct ulogd_key mac2str_inp[] = {
[KEY_RAW_MAC] = {
.type = ULOGD_RET_RAW,
.flags = ULOGD_RETF_NONE,
.name = "raw.mac",
},
[KEY_RAW_MACLEN] = {
.type = ULOGD_RET_UINT16,
.flags = ULOGD_RETF_NONE,
.name = "raw.mac_len",
},
};
static struct ulogd_key mac2str_keys[] = {
{
.type = ULOGD_RET_STRING,
.flags = ULOGD_RETF_FREE,
.name = "mac.saddr.str",
},
};
static int interp_mac2str(struct ulogd_pluginstance *pi)
{
struct ulogd_key *ret = pi->output.keys;
struct ulogd_key *inp = pi->input.keys;
if (pp_is_valid(inp, KEY_RAW_MAC)) {
unsigned char *mac = (unsigned char *) GET_VALUE(inp, KEY_RAW_MAC).ptr;
int len = GET_VALUE(inp, KEY_RAW_MACLEN).ui16;
char *mac_str = calloc(len/sizeof(char)*3, sizeof(char));
char *buf_cur = mac_str;
int i;
if (mac_str == NULL)
return -1;
for (i = 0; i < len; i++)
buf_cur += sprintf(buf_cur, "%02x%c", mac[i],
i == len - 1 ? 0 : ':');
ret[KEY_MAC_SADDR].u.value.ptr = mac_str;
ret[KEY_MAC_SADDR].flags |= ULOGD_RETF_VALID;
}
return 0;
}
static struct ulogd_plugin mac2str_pluging = {
.name = "MAC2STR",
.input = {
.keys = mac2str_inp,
.num_keys = ARRAY_SIZE(mac2str_inp),
.type = ULOGD_DTYPE_PACKET,
},
.output = {
.keys = mac2str_keys,
.num_keys = ARRAY_SIZE(mac2str_keys),
.type = ULOGD_DTYPE_PACKET,
},
.interp = &interp_mac2str,
.version = ULOGD_VERSION,
};
void __attribute__ ((constructor)) init(void);
void init(void)
{
ulogd_register_plugin(&mac2str_pluging);
}
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