/*
 * 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");
}
on>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/atm/ueagle-atm.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers?h=nds-private-remove'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb?h=nds-private-remove'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/atm?h=nds-private-remove'>atm</a>/<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove'>ueagle-atm.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/atm/ueagle-atm.c?h=nds-private-remove&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
/linux/net-next.git/log/sound/soc/codecs?h=nds-private-remove&amp;id=37a7ea4a9b81f6a864c10a7cb0b96458df5310a3'>codecs</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/adav80x.c?h=nds-private-remove&amp;id=37a7ea4a9b81f6a864c10a7cb0b96458df5310a3'>adav80x.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/soc/codecs/adav80x.c?h=nds-private-remove&amp;id=37a7ea4a9b81f6a864c10a7cb0b96458df5310a3&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>