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305 lines
7.2 KiB
C
305 lines
7.2 KiB
C
/*
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** exporter.c - example exporter
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**
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** Copyright Fraunhofer FOKUS
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**
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <ipfix_def.h>
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#include <ipfix_def_fokus.h>
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#include <ipfix_fields_fokus.h>
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#include <ipfix.h>
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#include <mlog.h>
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#include <wprobe.h>
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#include <stdbool.h>
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static ipfix_datarecord_t g_data = { NULL, NULL, 0 };
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static int do_close = 0;
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struct wprobe_mapping {
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int id;
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bool counter;
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const char *wprobe_id;
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struct wprobe_value *val;
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};
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(_array) (sizeof(_array) / sizeof((_array)[0]))
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#endif
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#define WMAP(_id, _name, ...) \
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{ \
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.counter = false, \
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.id = IPFIX_FT_WPROBE_##_id##_N, \
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.wprobe_id = _name \
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, ## __VA_ARGS__ \
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}
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#define WMAP_COUNTER(_id, _name, ...) \
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{ \
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.counter = true, \
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.id = IPFIX_FT_WPROBE_##_id, \
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.wprobe_id = _name \
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, ## __VA_ARGS__ \
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}
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#define WPROBE_OFFSET 2
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static struct wprobe_mapping map_globals[] = {
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WMAP(NOISE, "noise"),
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WMAP(PHY_BUSY, "phy_busy"),
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WMAP(PHY_RX, "phy_rx"),
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WMAP(PHY_TX, "phy_tx"),
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WMAP_COUNTER(FRAMES, "frames"),
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WMAP_COUNTER(PROBEREQ, "probereq"),
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};
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static struct wprobe_mapping map_perlink[] = {
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WMAP(IEEE_TX_RATE, "tx_rate"),
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WMAP(IEEE_RX_RATE, "rx_rate"),
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WMAP(RSSI, "rssi"),
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WMAP(SIGNAL, "signal"),
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WMAP(RETRANSMIT_200, "retransmit_200"),
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WMAP(RETRANSMIT_400, "retransmit_400"),
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WMAP(RETRANSMIT_800, "retransmit_800"),
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WMAP(RETRANSMIT_1600, "retransmit_1600"),
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};
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static unsigned char link_local[6];
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static char link_default[6];
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static int nfields = 0;
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#define FOKUS_USERID 12325
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static void
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match_template(struct wprobe_mapping *map, int n, struct list_head *list)
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{
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struct wprobe_attribute *attr;
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int i, j, last = -1;
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list_for_each_entry(attr, list, list) {
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for (i = 0; i < n; i++) {
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j = (last + 1 + i) % n;
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if (!strcmp(attr->name, map[j].wprobe_id))
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goto found;
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}
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continue;
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found:
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last = j;
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map[j].val = &attr->val;
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memset(&attr->val, 0, sizeof(attr->val));
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nfields++;
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}
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}
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/* name: export_ipfix_get_template()
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*/
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static ipfix_template_t *
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prepare_template(ipfix_t *handle)
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{
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ipfix_template_t *t = NULL;
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int size = 3 * nfields + WPROBE_OFFSET;
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int i;
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if (ipfix_new_data_template( handle, &t, size) < 0) {
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mlogf( 0, "ipfix_new_template() failed: %s\n", strerror(errno) );
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exit(1);
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}
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ipfix_add_field(handle, t, 0, IPFIX_FT_SOURCEMACADDRESS, 6);
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ipfix_add_field(handle, t, 0, IPFIX_FT_DESTINATIONMACADDRESS, 6);
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g_data.lens = calloc(size, sizeof(g_data.lens[0]));
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g_data.lens[0] = 6;
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g_data.lens[1] = 6;
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for (i = WPROBE_OFFSET; i < size; i++)
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g_data.lens[i] = 4;
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g_data.addrs = calloc(size, sizeof(g_data.addrs[0]));
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g_data.addrs[0] = link_local;
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g_data.maxfields = WPROBE_OFFSET;
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return t;
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}
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static void
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add_template_fields(ipfix_t *handle, ipfix_template_t *t, struct wprobe_mapping *map, int n)
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{
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int f = g_data.maxfields;
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int i;
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for (i = 0; i < n; i++) {
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if (!map[i].val)
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continue;
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if (map[i].counter)
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g_data.addrs[f++] = &map[i].val->U32;
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else
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g_data.addrs[f++] = &map[i].val->n;
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if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 0, 4) < 0)
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exit(1);
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if (map[i].counter)
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continue;
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g_data.lens[f] = 8;
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g_data.addrs[f++] = &map[i].val->s;
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g_data.lens[f] = 8;
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g_data.addrs[f++] = &map[i].val->ss;
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if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 1, 8) < 0)
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exit(1);
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if (ipfix_add_field( handle, t, FOKUS_USERID, map[i].id + 2, 8) < 0)
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exit(1);
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}
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g_data.maxfields = f;
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}
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static void
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wprobe_dump_data(ipfix_t *ipfixh, ipfix_template_t *ipfixt, struct wprobe_iface *dev)
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{
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struct wprobe_link *link;
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wprobe_update_links(dev);
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wprobe_request_data(dev, NULL);
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if (list_empty(&dev->links)) {
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g_data.addrs[1] = link_default;
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ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
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ipfix_export_flush(ipfixh);
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}
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list_for_each_entry(link, &dev->links, list) {
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g_data.addrs[1] = link->addr;
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wprobe_request_data(dev, link->addr);
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ipfix_export_array(ipfixh, ipfixt, g_data.maxfields, g_data.addrs, g_data.lens);
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ipfix_export_flush(ipfixh);
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}
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}
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int main ( int argc, char **argv )
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{
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struct wprobe_iface *dev = NULL;
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ipfix_template_t *ipfixt = NULL;
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ipfix_t *ipfixh = NULL;
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int protocol = IPFIX_PROTO_TCP;
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char *chost = NULL;
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char *ifname = NULL;
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int sourceid = 12345;
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int port = IPFIX_PORTNO;
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int verbose_level = 0;
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int opt, i = 10;
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char *err = NULL;
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while ((opt = getopt(argc, argv, "hi:c:p:vstu")) != EOF) {
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switch (opt) {
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case 'p':
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if ((port=atoi(optarg)) <0) {
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fprintf( stderr, "Invalid -p argument!\n" );
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exit(1);
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}
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break;
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case 'i':
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ifname = optarg;
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break;
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case 'c':
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chost = optarg;
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break;
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case 's':
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protocol = IPFIX_PROTO_SCTP;
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break;
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case 't':
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protocol = IPFIX_PROTO_TCP;
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break;
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case 'u':
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protocol = IPFIX_PROTO_UDP;
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break;
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case 'v':
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verbose_level ++;
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break;
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case 'h':
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default:
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fprintf(stderr, "usage: %s [-hstuv] -i <interface> -c <collector> [-p portno]\n"
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" -h this help\n"
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" -i <interface> wprobe interface\n"
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" -c <collector> collector address\n"
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" -p <portno> collector port number (default=%d)\n"
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" -s send data via SCTP\n"
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" -t send data via TCP (default)\n"
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" -u send data via UDP\n"
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" -v increase verbose level\n\n",
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argv[0], IPFIX_PORTNO );
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exit(1);
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}
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}
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if (!ifname) {
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fprintf(stderr, "No interface specified\n");
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return -1;
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}
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if (!chost) {
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fprintf(stderr, "No collector specified\n");
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return -1;
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}
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dev = wprobe_get_auto(ifname, &err);
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if (!dev || (list_empty(&dev->global_attr) && list_empty(&dev->link_attr))) {
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fprintf(stderr, "Cannot connect to wprobe on interface '%s': %s\n", ifname, (err ? err : "Unknown error"));
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return -1;
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}
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match_template(map_globals, ARRAY_SIZE(map_globals), &dev->global_attr);
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match_template(map_perlink, ARRAY_SIZE(map_perlink), &dev->link_attr);
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if (nfields == 0) {
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fprintf(stderr, "No usable attributes found\n");
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return -1;
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}
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mlog_set_vlevel( verbose_level );
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if (ipfix_init() < 0) {
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fprintf( stderr, "cannot init ipfix module: %s\n", strerror(errno) );
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exit(1);
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}
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ipfix_add_vendor_information_elements(ipfix_ft_fokus);
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if (ipfix_open(&ipfixh, sourceid, IPFIX_VERSION) < 0) {
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fprintf( stderr, "ipfix_open() failed: %s\n", strerror(errno) );
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exit(1);
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}
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if (ipfix_add_collector( ipfixh, chost, port, protocol ) < 0) {
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fprintf( stderr, "ipfix_add_collector(%s,%d) failed: %s\n",
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chost, port, strerror(errno));
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exit(1);
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}
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fprintf(stderr, "Local link address: %02x:%02x:%02x:%02x:%02x:%02x\n",
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link_local[0], link_local[1], link_local[2],
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link_local[3], link_local[4], link_local[5]);
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ipfixt = prepare_template(ipfixh);
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add_template_fields(ipfixh, ipfixt, map_globals, ARRAY_SIZE(map_globals));
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add_template_fields(ipfixh, ipfixt, map_perlink, ARRAY_SIZE(map_perlink));
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while (!do_close) {
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sleep(1);
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wprobe_dump_data(ipfixh, ipfixt, dev);
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}
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ipfix_delete_template( ipfixh, ipfixt );
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ipfix_close( ipfixh );
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ipfix_cleanup();
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exit(0);
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}
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