#include <stdio.h>
#include <assert.h>
#include <linux/bpf.h>
#include "libbpf.h"
#include "bpf_load.h"
#include "sock_example.h"
#include <unistd.h>
#include <arpa/inet.h>

int main(int ac, char **argv)
{
	char filename[256];
	FILE *f;
	int i, sock;

	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);

	if (load_bpf_file(filename)) {
		printf("%s", bpf_log_buf);
		return 1;
	}

	sock = open_raw_sock("lo");

	assert(setsockopt(sock, SOL_SOCKET, SO_ATTACH_BPF, prog_fd,
			  sizeof(prog_fd[0])) == 0);

	f = popen("ping -c5 localhost", "r");
	(void) f;

	for (i = 0; i < 5; i++) {
		long long tcp_cnt, udp_cnt, icmp_cnt;
		int key;

		key = IPPROTO_TCP;
		assert(bpf_map_lookup_elem(map_fd[0], &key, &tcp_cnt) == 0);

		key = IPPROTO_UDP;
		assert(bpf_map_lookup_elem(map_fd[0], &key, &udp_cnt) == 0);

		key = IPPROTO_ICMP;
		assert(bpf_map_lookup_elem(map_fd[0], &key, &icmp_cnt) == 0);

		printf("TCP %lld UDP %lld ICMP %lld bytes\n",
		       tcp_cnt, udp_cnt, icmp_cnt);
		sleep(1);
	}

	return 0;
}
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='c3695331f3a326a468bd6a5b6f05b481b399726b'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-06-19 07:05:14 -1000</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-06-19 07:05:14 -1000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=c3695331f3a326a468bd6a5b6f05b481b399726b'>c3695331f3a326a468bd6a5b6f05b481b399726b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=c3695331f3a326a468bd6a5b6f05b481b399726b'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=9af1f5d8f20f97884da55817ab80a6fcd170f296'>9af1f5d8f20f97884da55817ab80a6fcd170f296</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=c3695331f3a326a468bd6a5b6f05b481b399726b&amp;id2=9af1f5d8f20f97884da55817ab80a6fcd170f296'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=b9d8905e4a751e2cdc0fb474856b7183c594dcc6'>b9d8905e4a751e2cdc0fb474856b7183c594dcc6</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=c3695331f3a326a468bd6a5b6f05b481b399726b&amp;id2=b9d8905e4a751e2cdc0fb474856b7183c594dcc6'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs</div><div class='commit-msg'>Pull UDF fixes and a reiserfs fix from Jan Kara:
 "A couple of udf fixes (most notably a bug in parsing UDF partitions
  which led to inability to mount recent Windows installation media) and
  a reiserfs fix for handling kstrdup failure"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  reiserfs: check kstrdup failure
  udf: Use correct partition reference number for metadata
  udf: Use IS_ERR when loading metadata mirror file entry
  udf: Don't BUG on missing metadata partition descriptor
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c3695331f3a326a468bd6a5b6f05b481b399726b'>Diffstat</a></div><table summary='diffstat' class='diffstat'>