/*
 * 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, 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");
}
elect name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
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<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-08-26 20:22:01 -0700</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-08-26 20:22:01 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=28687b935e93a9041a485b9ecdcab0e335f8eda5'>28687b935e93a9041a485b9ecdcab0e335f8eda5</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=28687b935e93a9041a485b9ecdcab0e335f8eda5'>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=370f6017295da81189d9aaed24e68c36e68a8947'>370f6017295da81189d9aaed24e68c36e68a8947</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=28687b935e93a9041a485b9ecdcab0e335f8eda5&amp;id2=370f6017295da81189d9aaed24e68c36e68a8947'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=28a235931b56d4e7bdd51f6733daf95f2b269da8'>28a235931b56d4e7bdd51f6733daf95f2b269da8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=28687b935e93a9041a485b9ecdcab0e335f8eda5&amp;id2=28a235931b56d4e7bdd51f6733daf95f2b269da8'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs</div><div class='commit-msg'>Pull btrfs fixes from Chris Mason:
 "We've queued up a few different fixes in here.  These range from
  enospc corners to fsync and quota fixes, and a few targeted at error
  handling for corrupt metadata/fuzzing"

* 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix lockdep warning on deadlock against an inode's log mutex
  Btrfs: detect corruption when non-root leaf has zero item
  Btrfs: check btree node's nritems
  btrfs: don't create or leak aliased root while cleaning up orphans
  Btrfs: fix em leak in find_first_block_group
  btrfs: do not background blkdev_put()
  Btrfs: clarify do_chunk_alloc()'s return value
  btrfs: fix fsfreeze hang caused by delayed iputs deal
  btrfs: update btrfs_space_info's bytes_may_use timely
  btrfs: divide btrfs_update_reserved_bytes() into two functions
  btrfs: use correct offset for reloc_inode in prealloc_file_extent_cluster()
  btrfs: qgroup: Fix qgroup incorrectness caused by log replay
  btrfs: relocation: Fix leaking qgroups numbers on data extents
  btrfs: qgroup: Refactor btrfs_qgroup_insert_dirty_extent()
  btrfs: waiting on qgroup rescan should not always be interruptible
  btrfs: properly track when rescan worker is running
  btrfs: flush_space: treat return value of do_chunk_alloc properly
  Btrfs: add ASSERT for block group's memory leak
  btrfs: backref: Fix soft lockup in __merge_refs function
  Btrfs: fix memory leak of reloc_root
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=28687b935e93a9041a485b9ecdcab0e335f8eda5'>Diffstat</a></div><table summary='diffstat' class='diffstat'>