/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2013 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#include <pcap.h>
#include <linux/filter.h>

#include "xmalloc.h"
#include "config.h"
#include "bpf.h"
#include "die.h"

void bpf_try_compile(const char *rulefile, struct sock_fprog *bpf, uint32_t link_type)
{
	int i, ret;
	const struct bpf_insn *ins;
	struct sock_filter *out;
	struct bpf_program _bpf;

	ret = pcap_compile_nopcap(65535, link_type, &_bpf, rulefile, 1, 0xffffffff);
	if (ret < 0)
		panic("Cannot compile filter %s\n", rulefile);

	bpf->len = _bpf.bf_len;
	bpf->filter = xrealloc(bpf->filter, 1, bpf->len * sizeof(*out));

	for (i = 0, ins = _bpf.bf_insns, out = bpf->filter; i < bpf->len;
	     ++i, ++ins, ++out) {
		out->code = ins->code;
		out->jt = ins->jt;
		out->jf = ins->jf;
		out->k = ins->k;

		if (out->code == 0x06 && out->k > 0)
			out->k = 0xFFFFFFFF;
	}

	pcap_freecode(&_bpf);

	if (__bpf_validate(bpf) == 0)
		panic("This is not a valid BPF program!\n");
}
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='7932aa1e43b4d4117be7671bb299103e549aec11'/><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 S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2016-09-21 21:45:19 -0400</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2016-09-21 21:45:19 -0400</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=7932aa1e43b4d4117be7671bb299103e549aec11'>7932aa1e43b4d4117be7671bb299103e549aec11</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=7932aa1e43b4d4117be7671bb299103e549aec11'>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=b5036cd4ed3173ab8cdbc85e2ba74acf46bafb51'>b5036cd4ed3173ab8cdbc85e2ba74acf46bafb51</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=7932aa1e43b4d4117be7671bb299103e549aec11&amp;id2=b5036cd4ed3173ab8cdbc85e2ba74acf46bafb51'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=db64c5fa590b5d82ac0d5ec39bc498f95094e66b'>db64c5fa590b5d82ac0d5ec39bc498f95094e66b</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=7932aa1e43b4d4117be7671bb299103e549aec11&amp;id2=db64c5fa590b5d82ac0d5ec39bc498f95094e66b'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'wireless-drivers-for-davem-2016-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers</div><div class='commit-msg'>Kalle Valo says:

====================
wireless-drivers fixes for 4.8

iwlwifi

* fix to prevent firmware crash when sending off-channel frames
====================

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
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