/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009, 2010 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef RX_RING_H
#define RX_RING_H

#include <stdbool.h>

#include "ring.h"

extern void ring_rx_setup(struct ring *ring, int sock, size_t size, int ifindex,
			  struct pollfd *poll, bool v3, bool jumbo_support,
			  bool verbose, uint32_t fanout_group, uint32_t fanout_type);
extern void destroy_rx_ring(int sock, struct ring *ring);
extern int get_rx_net_stats(int sock, uint64_t *packets, uint64_t *drops, bool v3);

static inline int user_may_pull_from_rx(struct tpacket2_hdr *hdr)
{
	return ((hdr->tp_status & TP_STATUS_USER) == TP_STATUS_USER);
}

static inline void kernel_may_pull_from_rx(struct tpacket2_hdr *hdr)
{
	hdr->tp_status = TP_STATUS_KERNEL;
}

#ifdef HAVE_TPACKET3
static inline int user_may_pull_from_rx_block(struct block_desc *pbd)
{
	return ((pbd->h1.block_status & TP_STATUS_USER) == TP_STATUS_USER);
}

static inline void kernel_may_pull_from_rx_block(struct block_desc *pbd)
{
	pbd->h1.block_status = TP_STATUS_KERNEL;
}
#endif /* HAVE_TPACKET3 */

/* Fanout types. */

#ifndef PACKET_FANOUT_HASH
# define PACKET_FANOUT_HASH		0
#endif

#ifndef PACKET_FANOUT_LB
# define PACKET_FANOUT_LB		1
#endif

#ifndef PACKET_FANOUT_CPU
# define PACKET_FANOUT_CPU		2
#endif

#ifndef PACKET_FANOUT_ROLLOVER
# define PACKET_FANOUT_ROLLOVER		3
#endif

#ifndef PACKET_FANOUT_RND
# define PACKET_FANOUT_RND		4
#endif

#ifndef PACKET_FANOUT_QM
# define PACKET_FANOUT_QM		5
#endif

#ifndef PACKET_FANOUT_FLAG_ROLLOVER
# define PACKET_FANOUT_FLAG_ROLLOVER	0x1000
#endif

#ifndef PACKET_FANOUT_FLAG_DEFRAG
# define PACKET_FANOUT_FLAG_DEFRAG	0x8000
#endif

#endif /* RX_RING_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=53897a78ca6d4bd64e8c17d76cfec65d237f9447'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?id=53897a78ca6d4bd64e8c17d76cfec65d237f9447'>tools</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/tools?id=53897a78ca6d4bd64e8c17d76cfec65d237f9447&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td><span title='2016-06-06 18:18:55 -0300'>2016-06-06</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/tools?id=53897a78ca6d4bd64e8c17d76cfec65d237f9447'>tools lib bpf: Use IS_ERR() reporting macros with bpf_map__get_def()</a></td><td>Arnaldo Carvalho de Melo</td><td>3</td><td><span class='deletions'>-35</span>/<span class='insertions'>+27</span></td></tr>
<tr><td><span title='2016-06-06 18:18:44 -0300'>2016-06-06</span></td><td><a href='/cgit.cgi/linux/net-next.git/commit/tools?id=009ad5d5945697a887f0c1b2d581503d92dcde6f'>tools lib bpf: Rename bpf_map__get_name() to bpf_map__name()</a></td><td>Arnaldo Carvalho de Melo</td><td>3</td><td><span class='deletions'>-17</span>/<span class='insertions'>+9</span></td></tr>