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

#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */

#include "proto.h"
#include "protos.h"
#include "dissector_eth.h"
#include "pkt_buff.h"
#include "built_in.h"

struct arphdr {
	uint16_t ar_hrd;   /* format of hardware address */
	uint16_t ar_pro;   /* format of protocol address */
	uint8_t ar_hln;    /* length of hardware address */
	uint8_t ar_pln;    /* length of protocol address */
	uint16_t ar_op;    /* ARP opcode (command)       */
	uint8_t ar_sha[6]; /* sender hardware address    */
	uint8_t ar_sip[4]; /* sender IP address          */
	uint8_t ar_tha[6]; /* target hardware address    */
	uint8_t ar_tip[4]; /* target IP address          */
} __packed;

#define ARPHRD_ETHER	1
#define ARPHRD_IEEE802	6
#define ARPHRD_ARCNET	7
#define ARPHRD_ATM	16
#define ARPHRD_ATM2	19
#define ARPHRD_SERIAL	20
#define ARPHRD_ATM3	21
#define ARPHRD_IEEE1394	24

#define ARPOP_REQUEST   1  /* ARP request                */
#define ARPOP_REPLY     2  /* ARP reply                  */
#define ARPOP_RREQUEST  3  /* RARP request               */
#define ARPOP_RREPLY    4  /* RARP reply                 */
#define ARPOP_InREQUEST 8  /* InARP request              */
#define ARPOP_InREPLY   9  /* InARP reply                */
#define ARPOP_NAK       10 /* (ATM)ARP NAK               */

static void arp(struct pkt_buff *pkt)
{
	char *hrd;
	char *pro;
	char *opcode;
	struct arphdr *arp = (struct arphdr *) pkt_pull(pkt, sizeof(*arp));

	if (arp == NULL)
		return;

	switch (ntohs(arp->ar_hrd)) {
	case ARPHRD_ETHER:
		hrd = "Ethernet";
		break;
	case ARPHRD_IEEE802:
		hrd = "IEEE 802";
		break;
	case ARPHRD_ARCNET:
		hrd = "ARCNET";
		break;
	case ARPHRD_ATM:
	case ARPHRD_ATM2:
	case ARPHRD_ATM3:
		hrd = "ATM";
		break;
	case ARPHRD_SERIAL:
		hrd = "Serial Line";
		break;
	case ARPHRD_IEEE1394:
		hrd = "IEEE 1394.1995";
		break;
	default:
		hrd = "Unknown";
		break;
	}

	pro = lookup_ether_type(ntohs(arp->ar_pro));
	if (pro == NULL)
		pro = "Unknown";

	switch (ntohs(arp->ar_op)) {
	case ARPOP_REQUEST:
		opcode = "ARP request";
		break;
	case ARPOP_REPLY:
		opcode = "ARP reply";
		break;
	case ARPOP_RREQUEST:
		opcode = "RARP request";
		break;
	case ARPOP_RREPLY:
		opcode = "RARP reply";
		break;
	case ARPOP_InREQUEST:
		opcode = "InARP request";
		break;
	case ARPOP_InREPLY:
		opcode = "InARP reply";
		break;
	case ARPOP_NAK:
		opcode = "(ATM) ARP NAK";
		break;
	default:
		opcode = "Unknown";
		break;
	};

	tprintf(" [ ARP ");
	tprintf("Format HA (%u => %s), ", ntohs(arp->ar_hrd), hrd);
	tprintf("Format Proto (0x%.4x => %s), ", ntohs(arp->ar_pro), pro);
	tprintf("HA Len (%u), ", arp->ar_hln);
	tprintf("Proto Len (%u), ", arp->ar_pln);
	tprintf("Opcode (%u => %s)", ntohs(arp->ar_op), opcode);
	tprintf(" ]\n");
}

static void arp_less(struct pkt_buff *pkt)
{
	char *opcode = NULL;
	struct arphdr *arp = (struct arphdr *) pkt_pull(pkt, sizeof(*arp));

	if (arp == NULL)
		return;

	switch (ntohs(arp->ar_op)) {
	case ARPOP_REQUEST:
		opcode = "ARP request";
		break;
	case ARPOP_REPLY:
		opcode = "ARP reply";
		break;
	case ARPOP_RREQUEST:
		opcode = "RARP request";
		break;
	case ARPOP_RREPLY:
		opcode = "RARP reply";
		break;
	case ARPOP_InREQUEST:
		opcode = "InARP request";
		break;
	case ARPOP_InREPLY:
		opcode = "InARP reply";
		break;
	case ARPOP_NAK:
		opcode = "(ATM) ARP NAK";
		break;
	default:
		opcode = "Unknown";
		break;
	};

	tprintf(" Op %s", opcode);
}

struct protocol arp_ops = {
	.key = 0x0806,
	.print_full = arp,
	.print_less = arp_less,
};
lue='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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-31 13:07:04 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-31 13:07:04 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/Makefile?id=52e02f2797cf44e00da987a7736cc0f5192132f7'>52e02f2797cf44e00da987a7736cc0f5192132f7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/Makefile?id=52e02f2797cf44e00da987a7736cc0f5192132f7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=52e02f2797cf44e00da987a7736cc0f5192132f7'>5edb83141db6c9544feb9a47c5e50ccd173d5e49</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/Makefile?id=52e02f2797cf44e00da987a7736cc0f5192132f7'>drivers/usb/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/Makefile?id=c9194b99ae1825bdbafc701965442a47739ff0ad'>c9194b99ae1825bdbafc701965442a47739ff0ad</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/Makefile?id=52e02f2797cf44e00da987a7736cc0f5192132f7&amp;id2=c9194b99ae1825bdbafc701965442a47739ff0ad'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/Makefile?id=064c3db9c564cc5be514ac21fb4aa26cc33db746'>064c3db9c564cc5be514ac21fb4aa26cc33db746</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/Makefile?id=52e02f2797cf44e00da987a7736cc0f5192132f7&amp;id2=064c3db9c564cc5be514ac21fb4aa26cc33db746'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata</div><div class='commit-msg'>Pull libata fixes from Tejun Heo:
 "Three libata fixes: an error handling fix, blacklist addition for
  another fallout from upping the default max sectors, and fix for a
  sense data reporting bug which affects new harddrives which can report
  sense data"

* 'for-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ata: sata_mv:- Handle return value of devm_ioremap.
  libata: Fix ATA request sense
  libata: apply MAX_SEC_1024 to all CX1-JB*-HP devices
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=52e02f2797cf44e00da987a7736cc0f5192132f7'>Diffstat</a> (limited to 'drivers/usb/Makefile')</div><table summary='diffstat' class='diffstat'>