/* Copyright (c) 2016 Sargun Dhillon <sargun@sargun.me>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */

#define _GNU_SOURCE
#include <stdio.h>
#include <linux/bpf.h>
#include <unistd.h>
#include "libbpf.h"
#include "bpf_load.h"
#include <linux/bpf.h>
#include "cgroup_helpers.h"

#define CGROUP_PATH		"/my-cgroup"

int main(int argc, char **argv)
{
	pid_t remote_pid, local_pid = getpid();
	int cg2, idx = 0, rc = 0;
	char filename[256];

	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
	if (load_bpf_file(filename)) {
		printf("%s", bpf_log_buf);
		return 1;
	}

	if (setup_cgroup_environment())
		goto err;

	cg2 = create_and_get_cgroup(CGROUP_PATH);

	if (!cg2)
		goto err;

	if (bpf_map_update_elem(map_fd[0], &idx, &cg2, BPF_ANY)) {
		log_err("Adding target cgroup to map");
		goto err;
	}

	if (join_cgroup(CGROUP_PATH))
		goto err;

	/*
	 * The installed helper program catched the sync call, and should
	 * write it to the map.
	 */

	sync();
	bpf_map_lookup_elem(map_fd[1], &idx, &remote_pid);

	if (local_pid != remote_pid) {
		fprintf(stderr,
			"BPF Helper didn't write correct PID to map, but: %d\n",
			remote_pid);
		goto err;
	}

	/* Verify the negative scenario; leave the cgroup */
	if (join_cgroup("/"))
		goto err;

	remote_pid = 0;
	bpf_map_update_elem(map_fd[1], &idx, &remote_pid, BPF_ANY);

	sync();
	bpf_map_lookup_elem(map_fd[1], &idx, &remote_pid);

	if (local_pid == remote_pid) {
		fprintf(stderr, "BPF cgroup negative test did not work\n");
		goto err;
	}

	goto out;
err:
	rc = 1;

out:
	close(cg2);
	cleanup_cgroup_environment();
	return rc;
}
inux/net-next.git/log/net/xfrm/xfrm_policy.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/xfrm/xfrm_policy.c'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='30357d7d8aaf2a980ab17c2ce054b2b87e60af88'/><select name='qt'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/xfrm?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>xfrm</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>xfrm_policy.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='30357d7d8aaf2a980ab17c2ce054b2b87e60af88'/><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>David Ahern &lt;dsa@cumulusnetworks.com&gt;</td><td class='right'>2017-01-30 12:07:37 -0800</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 15:14:22 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>30357d7d8aaf2a980ab17c2ce054b2b87e60af88</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/xfrm/xfrm_policy.c?id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>296e78783c0ad08a55440a84b6c294de37f1fa72</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>net/xfrm/xfrm_policy.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=6ad20165d376fa07919a70e4f43dfae564601829'>6ad20165d376fa07919a70e4f43dfae564601829</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/xfrm/xfrm_policy.c?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88&amp;id2=6ad20165d376fa07919a70e4f43dfae564601829'>diff</a>)</td></tr></table>
<div class='commit-subject'>lwtunnel: remove device arg to lwtunnel_build_state</div><div class='commit-msg'>Nothing about lwt state requires a device reference, so remove the
input argument.

Signed-off-by: David Ahern &lt;dsa@cumulusnetworks.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=30357d7d8aaf2a980ab17c2ce054b2b87e60af88'>Diffstat</a> (limited to 'net/xfrm/xfrm_policy.c')</div><table summary='diffstat' class='diffstat'>