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/* ulogd_output_IPFIX.c, Version $Revision: 1628 $
*
* ulogd output plugin for IPFIX
*
* This target produces a file which looks the same like the syslog-entries
* of the LOG target.
*
* (C) 2005 by 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_output_LOGEMU.c 1628 2005-11-04 15:23:12Z laforge $
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ulogd/ulogd.h>
#include <ulogd/conffile.h>
#include <ulogd/ipfix_protocol.h>
#define IPFIX_DEFAULT_TCPUDP_PORT 4739
static struct config_keyset ipfix_kset = {
.num_ces = 3,
.ces = {
{
.key = "host",
.type = CONFIG_TYPE_STRING,
.options = CONFIG_OPT_NONE,
},
{
.key = "port",
.type = CONFIG_TYPE_INT,
.options = CONFIG_OPT_NONE,
.u = { .value = IPFIX_DEFAULT_TCPUDP_PORT },
},
{
.key = "protocol",
.type = CONFIG_TYPE_STRING,
.options = CONFIG_OPT_NONE,
.u = { .string = "udp" },
},
},
};
struct ipfix_instance {
int fd; /* socket that we use for sending IPFIX data */
struct {
char *buf;
unsigned int len;
} template;
};
/* Build the IPFIX template from the input keys */
static int build_template(struct ulogd_pluginstance *upi)
{
struct ipfix_instance *ii = (struct ipfix_instance *) &upi->private;
}
static int _output_ipfix(struct ulogd_pluginstance *upi)
{
struct ipfix_instance *ii = (struct ipfix_instance *) &upi->private;
struct ulogd_key *res = upi->input;
static char buf[4096];
printpkt_print(res, buf, 1);
fprintf(li->of, "%s", buf);
if (upi->config_kset->ces[1].u.value)
fflush(li->of);
return 0;
}
static void signal_handler_ipfix(struct ulogd_pluginstance *pi, int signal)
{
struct ipfix_instance *li = (struct ipfix_instance *) &pi->private;
switch (signal) {
case SIGHUP:
ulogd_log(ULOGD_NOTICE, "sysipfix: reopening logfile\n");
fclose(li->of);
li->of = fopen(pi->config_kset->ces[0].u.string, "a");
if (!li->of) {
ulogd_log(ULOGD_ERROR, "can't reopen sysipfix: %s\n",
strerror(errno));
}
break;
default:
break;
}
}
static int start_ipfix(struct ulogd_pluginstance *pi)
{
struct ipfix_instance *li = (struct ipfix_instance *) &pi->private;
ulogd_log(ULOGD_DEBUG, "starting ipfix\n");
#ifdef DEBUG_LOGEMU
li->of = stdout;
#else
ulogd_log(ULOGD_DEBUG, "opening file: %s\n",
pi->config_kset->ces[0].u.string);
li->of = fopen(pi->config_kset->ces[0].u.string, "a");
if (!li->of) {
ulogd_log(ULOGD_FATAL, "can't open sysipfix: %s\n",
strerror(errno));
return errno;
}
#endif
if (printpkt_init()) {
ulogd_log(ULOGD_ERROR, "can't resolve all keyhash id's\n");
return -EINVAL;
}
return 0;
}
static int fini_ipfix(struct ulogd_pluginstance *pi) {
struct ipfix_instance *li = (struct ipfix_instance *) &pi->private;
if (li->of != stdout)
fclose(li->of);
return 0;
}
static int configure_ipfix(struct ulogd_pluginstance *pi,
struct ulogd_pluginstance_stack *stack)
{
/* FIXME: error handling */
ulogd_log(ULOGD_DEBUG, "parsing config file section %s\n", pi->id);
config_parse_file(pi->id, pi->config_kset);
return 0;
}
static struct ulogd_plugin ipfix_plugin = {
.name = "IPFIX",
.input = {
.keys = printpkt_keys,
.num_keys = ARRAY_SIZE(printpkt_keys),
.type = ULOGD_DTYPE_PACKET,
},
.output = {
.type = ULOGD_DTYPE_SINK,
},
.config_kset = &ipfix_kset,
.priv_size = sizeof(struct ipfix_instance),
.configure = &configure_ipfix,
.start = &start_ipfix,
.stop = &fini_ipfix,
.interp = &_output_ipfix,
.signal = &signal_handler_ipfix,
};
void __attribute__ ((constructor)) init(void);
void init(void)
{
ulogd_register_plugin(&ipfix_plugin);
}
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