/*
 * netsniff-ng - the packet sniffing beast
 * Copyright 2009 - 2013 Daniel Borkmann.
 * Subject to the GPL, version 2.
 */

#ifndef DISSECTOR_H
#define DISSECTOR_H

#include <stdlib.h>
#include <stdint.h>
#include <sys/socket.h>
#include <linux/if_packet.h>
#include <linux/if.h>

#include "ring.h"
#include "tprintf.h"
#include "pcap_io.h"
#include "built_in.h"

#define PRINT_NORM		0
#define PRINT_LESS		1
#define PRINT_HEX		2
#define PRINT_ASCII		3
#define PRINT_HEX_ASCII		4
#define PRINT_NONE		5

static const char * const packet_types[256]={
	"<", /* Incoming */
	"B", /* Broadcast */
	"M", /* Multicast */
	"P", /* Promisc */
	">", /* Outgoing */
	"?", /* Unknown */
};

extern char *if_indextoname(unsigned ifindex, char *ifname);

static inline const char *__show_ts_source(uint32_t status)
{
	if (status & TP_STATUS_TS_RAW_HARDWARE)
		return "(raw hw ts)";
	else if (status & TP_STATUS_TS_SYS_HARDWARE)
		return "(sys hw ts)";
	else if (status & TP_STATUS_TS_SOFTWARE)
		return "(sw ts)";
	else
		return "";
}

static inline void __show_frame_hdr(struct sockaddr_ll *s_ll,
				    void *raw, int mode, bool v3)
{
	char tmp[IFNAMSIZ];
	union tpacket_uhdr hdr;

	if (mode == PRINT_NONE)
		return;

	hdr.raw = raw;

	switch (mode) {
	case PRINT_LESS:
		tprintf("%s %s %u",
			packet_types[s_ll->sll_pkttype] ? : "?",
			if_indextoname(s_ll->sll_ifindex, tmp) ? : "?",
			v3 ? hdr.h3->tp_len : hdr.h2->tp_len);
		break;
	default:
		tprintf("%s %s %u %us.%uns %s\n",
			packet_types[s_ll->sll_pkttype] ? : "?",
			if_indextoname(s_ll->sll_ifindex, tmp) ? : "?",
			v3 ? hdr.h3->tp_len : hdr.h2->tp_len,
			v3 ? hdr.h3->tp_sec : hdr.h2->tp_sec,
			v3 ? hdr.h3->tp_nsec : hdr.h2->tp_nsec,
			v3 ? "" : __show_ts_source(hdr.h2->tp_status));
		break;
	}
}

static inline void show_frame_hdr(struct frame_map *hdr, int mode)
{
	__show_frame_hdr(&hdr->s_ll, &hdr->tp_h, mode, false);
}

extern void dissector_init_all(int fnttype);
extern void dissector_entry_point(uint8_t *packet, size_t len, int linktype, int mode);
extern void dissector_cleanup_all(void);
extern int dissector_set_print_type(void *ptr, int type);

#endif /* DISSECTOR_H */
a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/Documentation'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='0fed3ac866eabf01924457921ee3684c8e4c9005'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>Documentation</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='0fed3ac866eabf01924457921ee3684c8e4c9005'/><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>George Spelvin &lt;linux@horizon.com&gt;</td><td class='right'>2016-05-02 06:31:01 -0400</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-05-16 11:35:08 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>0fed3ac866eabf01924457921ee3684c8e4c9005</a> (<a href='/cgit.cgi/linux/net-next.git/patch/Documentation?id=0fed3ac866eabf01924457921ee3684c8e4c9005'>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=0fed3ac866eabf01924457921ee3684c8e4c9005'>d32e64a6c0dbe6f93e5345caec509cc580db2a37</a> /<a href='/cgit.cgi/linux/net-next.git/tree/Documentation?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>Documentation</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/Documentation?h=nds-private-remove&amp;id=2dcd0af568b0cf583645c8a317dd12e344b1c72a'>2dcd0af568b0cf583645c8a317dd12e344b1c72a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/Documentation?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005&amp;id2=2dcd0af568b0cf583645c8a317dd12e344b1c72a'>diff</a>)</td></tr></table>
<div class='commit-subject'>namei: Improve hash mixing if CONFIG_DCACHE_WORD_ACCESS</div><div class='commit-msg'>The hash mixing between adding the next 64 bits of name
was just a bit weak.

Replaced with a still very fast but slightly more effective
mixing function.

Signed-off-by: George Spelvin &lt;linux@horizon.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=0fed3ac866eabf01924457921ee3684c8e4c9005'>Diffstat</a> (limited to 'Documentation')</div><table summary='diffstat' class='diffstat'>