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/*
** exporter.c - example exporter
**
** Copyright Fraunhofer FOKUS
**
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ipfix_def.h>
#include <ipfix_def_fokus.h>
#include <ipfix_fields_fokus.h>
#include <ipfix.h>
#include <mlog.h>
#include <wprobe.h>
#include <stdbool.h>
static ipfix_datarecord_t g_data = { NULL, NULL, 0 };
static int do_close = 0;
struct wprobe_mapping {
int id;
bool counter;
float scale;
const char *wprobe_id;
struct wprobe_value *val;
};
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(_array) (sizeof(_array) / sizeof((_array)[0]))
#endif
#define WMAP(_id, _name, ...) \
{ \
.scale = 1.0f, \
.counter = false, \
.id = IPFIX_FT_WPROBE_##_id##_AVG, \
.wprobe_id = _name \
, ## __VA_ARGS__ \
}
#define WMAP_COUNTER(_id, _name, ...) \
{ \
.scale = 1.0f, \
.counter = true, \
.id = IPFIX_FT_WPROBE_##_id, \
.wprobe_id = _name \
, ## __VA_ARGS__ \
}
#define WPROBE_OFFSET 2
static struct wprobe_mapping map_globals[] = {
WMAP(NOISE, "noise"),
WMAP(PHY_BUSY, "phy_busy"),
WMAP(PHY_RX, "phy_rx"),
WMAP(PHY_TX, "phy_tx"),
WMAP_COUNTER(FRAMES, "frames"),
WMAP_COUNTER(PROBEREQ, "probereq"),
};
static struct wprobe_mapping map_perlink[] = {
WMAP(IEEE_TX_RATE, "tx_rate"),
WMAP(IEEE_RX_RATE, "rx_rate"),
WMAP(RSSI, "rssi"),
WMAP(SIGNAL, "signal"),
WMAP(RETRANSMIT_200, "retransmit_200"),
WMAP(RETRANSMIT_400, "retransmit_400"),
WMAP(RETRANSMIT_800, "retransmit_800"),
WMAP(RETRANSMIT_1600, "retransmit_1600"),
};
static unsigned char link_local[6];
static char link_default[6];
static int nfields = 0;
#define FOKUS_USERID 12325
static void
match_template(struct wprobe_mapping *map, int n, struct list_head *list)
{
struct wprobe_attribute *attr;
int i, j, last = -1;
list_for_each_entry(attr, list, list) {
for (i = 0; i < n; i++) {
j = (last + 1 + i) % n;
if (!strcmp(attr->name, map[j].wprobe_id))
goto found;
}
continue;
found:
last = j;
map[j].val = &attr->val;
memset(&attr->val, 0, sizeof(attr->val));
nfields++;
}
}
/* name: export_ipfix_get_template()
*/
static ipfix_template_t *
prepare_template(ipfix_t *handle)
{
ipfix_template_t *t = NULL;
int size = 3 * nfields + WPROBE_OFFSET;
int i;
if (ipfix_new_data_template( handle, &t, size) < 0) {
mlogf( 0, "ipfix_new_template() failed: %s\n", strerror(errno) );
exit(1);
}
ipfix_add_field(handle, t, 0, IPFIX_FT_SOURCEMACADDRESS, 6);
ipfix_add_field(handle, t, 0, IPFIX_FT_DESTINATIONMACADDRESS, 6);
g_data.lens = calloc(size, sizeof(g_data.lens[0]));
g_data.lens[0] = 6;
g_data.lens[1] = 6;
for (i = WPROBE_OFFSET; i < size; i++)
g_data.lens[i] = 4;
g_data.addrs = calloc(size, sizeof(g_data.addrs[0]));
g_data.addrs[0] = link_local;
g_data.maxfields = WPROBE_OFFSET;
return t;
}
static void
add_template_fields(ipfix_t *handle, ipfix_template_t *t, struct wprobe_mapping *map, int n)
{
int f = g_data.maxfields;
int i;
for (i = 0; i < n; i++) {
if (!map[i].val)
continue;
if (map[i].counter)
g_data.addrs[f++] = &map[i].val->U32;
else
g_data.addrs[f++] = &map[i].val->avg;
if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 0, 4) < 0)
exit(1);
if (map[i].counter)
continue;
g_data.addrs[f++] = &map[i].val->stdev;
g_data.addrs[f++] = &map[i].val->n;
if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 1, 4) < 0)
exit(1);
if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 2, 4) < 0)
exit(1);
}
g_data.maxfields = f;
}
static void
wprobe_dump_data(ipfix_t *ipfixh, ipfix_template_t *ipfixt, struct wprobe_iface *dev)
{
struct wprobe_link *link;
wprobe_update_links(dev);
wprobe_request_data(dev, NULL);
if (list_empty(&dev->links)) {
g_data.addrs[1] = link_default;
ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
ipfix_export_flush(ipfixh);
}
list_for_each_entry(link, &dev->links, list) {
g_data.addrs[1] = link->addr;
wprobe_request_data(dev, link->addr);
ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
ipfix_export_flush(ipfixh);
}
}
int main ( int argc, char **argv )
{
struct wprobe_iface *dev = NULL;
ipfix_template_t *ipfixt = NULL;
ipfix_t *ipfixh = NULL;
int protocol = IPFIX_PROTO_TCP;
char *chost = NULL;
char *ifname = NULL;
int sourceid = 12345;
int port = IPFIX_PORTNO;
int verbose_level = 0;
int opt, i = 10;
while ((opt = getopt(argc, argv, "hi:c:p:vstu")) != EOF) {
switch (opt) {
case 'p':
if ((port=atoi(optarg)) <0) {
fprintf( stderr, "Invalid -p argument!\n" );
exit(1);
}
break;
case 'i':
ifname = optarg;
break;
case 'c':
chost = optarg;
break;
case 's':
protocol = IPFIX_PROTO_SCTP;
break;
case 't':
protocol = IPFIX_PROTO_TCP;
break;
case 'u':
protocol = IPFIX_PROTO_UDP;
break;
case 'v':
verbose_level ++;
break;
case 'h':
default:
fprintf(stderr, "usage: %s [-hstuv] -i <interface> -c <collector> [-p portno]\n"
" -h this help\n"
" -i <interface> wprobe interface\n"
" -c <collector> collector address\n"
" -p <portno> collector port number (default=%d)\n"
" -s send data via SCTP\n"
" -t send data via TCP (default)\n"
" -u send data via UDP\n"
" -v increase verbose level\n\n",
argv[0], IPFIX_PORTNO );
exit(1);
}
}
if (!ifname) {
fprintf(stderr, "No interface specified\n");
return -1;
}
if (!chost) {
fprintf(stderr, "No collector specified\n");
return -1;
}
dev = wprobe_get_dev(ifname);
if (!dev || (list_empty(&dev->global_attr) && list_empty(&dev->link_attr))) {
fprintf(stderr, "Cannot connect to wprobe on interface '%s'\n", ifname);
return -1;
}
match_template(map_globals, ARRAY_SIZE(map_globals), &dev->global_attr);
match_template(map_perlink, ARRAY_SIZE(map_perlink), &dev->link_attr);
if (nfields == 0) {
fprintf(stderr, "No usable attributes found\n");
return -1;
}
mlog_set_vlevel( verbose_level );
if (ipfix_init() < 0) {
fprintf( stderr, "cannot init ipfix module: %s\n", strerror(errno) );
exit(1);
}
ipfix_add_vendor_information_elements(ipfix_ft_fokus);
if (ipfix_open(&ipfixh, sourceid, IPFIX_VERSION) < 0) {
fprintf( stderr, "ipfix_open() failed: %s\n", strerror(errno) );
exit(1);
}
if (ipfix_add_collector( ipfixh, chost, port, protocol ) < 0) {
fprintf( stderr, "ipfix_add_collector(%s,%d) failed: %s\n",
chost, port, strerror(errno));
exit(1);
}
fprintf(stderr, "Local link address: %02x:%02x:%02x:%02x:%02x:%02x\n",
link_local[0], link_local[1], link_local[2],
link_local[3], link_local[4], link_local[5]);
ipfixt = prepare_template(ipfixh);
add_template_fields(ipfixh, ipfixt, map_globals, ARRAY_SIZE(map_globals));
add_template_fields(ipfixh, ipfixt, map_perlink, ARRAY_SIZE(map_perlink));
while (!do_close) {
sleep(1);
wprobe_dump_data(ipfixh, ipfixt, dev);
}
ipfix_delete_template( ipfixh, ipfixt );
ipfix_close( ipfixh );
ipfix_cleanup();
exit(0);
}
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