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

#include <stdio.h>
#include <stdint.h>
#include <netinet/in.h>    /* for ntohs() */
#include <arpa/inet.h>     /* for inet_ntop() */

#include "proto.h"
#include "protos.h"
#include "csum.h"
#include "dissector_eth.h"
#include "ipv6.h"
#include "geoip.h"
#include "pkt_buff.h"

extern void ipv6(struct pkt_buff *pkt);
extern void ipv6_less(struct pkt_buff *pkt);

void ipv6(struct pkt_buff *pkt)
{
	uint8_t traffic_class;
	uint32_t flow_label;
	char src_ip[INET6_ADDRSTRLEN];
	char dst_ip[INET6_ADDRSTRLEN];
	struct ipv6hdr *ip = (struct ipv6hdr *) pkt_pull(pkt, sizeof(*ip));
	struct sockaddr_in6 sas, sad;
	const char *city, *region, *country;

	if (ip == NULL)
		return;

	traffic_class = (ip->priority << 4) | 
			((ip->flow_lbl[0] & 0xF0) >> 4);
	flow_label = ((ip->flow_lbl[0] & 0x0F) << 8) |
		     (ip->flow_lbl[1] << 4) | ip->flow_lbl[2];

	inet_ntop(AF_INET6, &ip->saddr, src_ip, sizeof(src_ip));
	inet_ntop(AF_INET6, &ip->daddr, dst_ip, sizeof(dst_ip));

	tprintf(" [ IPv6 ");
	tprintf("Addr (%s => %s), ", src_ip, dst_ip);
	tprintf("Version (%u), ", ip->version);
	tprintf("TrafficClass (%u), ", traffic_class);
	tprintf("FlowLabel (%u), ", flow_label);
	tprintf("Len (%u), ", ntohs(ip->payload_len));
	tprintf("NextHdr (%u), ", ip->nexthdr);
	tprintf("HopLimit (%u)", ip->hop_limit);
	tprintf(" ]\n");

	memset(&sas, 0, sizeof(sas));
	sas.sin6_family = PF_INET6;
	memcpy(&sas.sin6_addr, &ip->saddr, sizeof(ip->saddr));

	memset(&sad, 0, sizeof(sad));
	sad.sin6_family = PF_INET6;
	memcpy(&sad.sin6_addr, &ip->daddr, sizeof(ip->daddr));

	if (geoip_working()) {
		tprintf("\t[ Geo (");
		if ((country = geoip6_country_name(sas))) {
			tprintf("%s", country);
			if ((region = geoip6_region_name(sas)))
				tprintf(" / %s", region);
			if ((city = geoip6_city_name(sas)))
				tprintf(" / %s", city);
		} else {
			tprintf("local");
		}
		tprintf(" => ");
		if ((country = geoip6_country_name(sad))) {
			tprintf("%s", country);
			if ((region = geoip6_region_name(sad)))
				tprintf(" / %s", region);
			if ((city = geoip6_city_name(sad)))
				tprintf(" / %s", city);
		} else {
			tprintf("local");
		}
		tprintf(") ]\n");
	}

	pkt_set_proto(pkt, &eth_lay3, ip->nexthdr);
}

void ipv6_less(struct pkt_buff *pkt)
{
	char src_ip[INET6_ADDRSTRLEN];
	char dst_ip[INET6_ADDRSTRLEN];
	struct ipv6hdr *ip = (struct ipv6hdr *) pkt_pull(pkt, sizeof(*ip));

	if (ip == NULL)
		return;

	inet_ntop(AF_INET6, &ip->saddr, src_ip, sizeof(src_ip));
	inet_ntop(AF_INET6, &ip->daddr, dst_ip, sizeof(dst_ip));

	tprintf(" %s/%s Len %u", src_ip, dst_ip,
		ntohs(ip->payload_len));

	pkt_set_proto(pkt, &eth_lay3, ip->nexthdr);
}

struct protocol ipv6_ops = {
	.key = 0x86DD,
	.print_full = ipv6,
	.print_less = ipv6_less,
};
ch/powerpc?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>powerpc</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='61e98ebff3ba3d3b17e999dc483c2680480ed715'/><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>Anton Blanchard &lt;anton@samba.org&gt;</td><td class='right'>2016-10-03 17:03:03 +1100</td></tr>
<tr><th>committer</th><td>Michael Ellerman &lt;mpe@ellerman.id.au&gt;</td><td class='right'>2016-10-04 16:13:13 +1100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch/powerpc?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>61e98ebff3ba3d3b17e999dc483c2680480ed715</a> (<a href='/cgit.cgi/linux/net-next.git/patch/arch/powerpc?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>3413b146a703edb4e7a5cbf963ce57a639ef791b</a> /<a href='/cgit.cgi/linux/net-next.git/tree/arch/powerpc?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>arch/powerpc</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/arch/powerpc?id=bb85fb5803270c52863b983596c2a038facaf4b3'>bb85fb5803270c52863b983596c2a038facaf4b3</a> (<a href='/cgit.cgi/linux/net-next.git/diff/arch/powerpc?id=61e98ebff3ba3d3b17e999dc483c2680480ed715&amp;id2=bb85fb5803270c52863b983596c2a038facaf4b3'>diff</a>)</td></tr></table>
<div class='commit-subject'>powerpc: Remove static branch prediction in atomic{, 64}_add_unless</div><div class='commit-msg'>I see quite a lot of static branch mispredictions on a simple
web serving workload. The issue is in __atomic_add_unless(), called
from _atomic_dec_and_lock(). There is no obvious common case, so it
is better to let the hardware predict the branch.

Signed-off-by: Anton Blanchard &lt;anton@samba.org&gt;
Signed-off-by: Michael Ellerman &lt;mpe@ellerman.id.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=61e98ebff3ba3d3b17e999dc483c2680480ed715'>Diffstat</a> (limited to 'arch/powerpc')</div><table summary='diffstat' class='diffstat'>