Jesper Dangaard Brouer 849a44de91 net: don't global ICMP rate limit packets originating from loopback ... Florian Weimer seems to have a glibc test-case which requires that loopback interfaces does not get ICMP ratelimited. This was broken by commit c0303efeab73 ("net: reduce cycles spend on ICMP replies that gets rate limited"). An ICMP response will usually be routed back-out the same incoming interface. Thus, take advantage of this and skip global ICMP ratelimit when the incoming device is loopback. In the unlikely event that the outgoing it not loopback, due to strange routing policy rules, ICMP rate limiting still works via peer ratelimiting via icmpv4_xrlim_allow(). Thus, we should still comply with RFC1812 (section 4.3.2.8 "Rate Limiting"). This seems to fix the reproducer given by Florian. While still avoiding to perform expensive and unneeded outgoing route lookup for rate limited packets (in the non-loopback case). Fixes: c0303efeab73 ("net: reduce cycles spend on ICMP replies that gets rate limited") Reported-by: Florian Weimer <fweimer@redhat.com> Reported-by: "H.J. Lu" <hjl.tools@gmail.com> Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-06-14 15:33:58 -04:00
..
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2017-05-01 10:47:53 -04:00
af_inet.c	net: ping: do not abuse udp_poll()	2017-06-04 22:56:55 -04:00
ah4.c
arp.c	arp: fixed -Wuninitialized compiler warning	2017-05-25 13:38:20 -04:00
cipso_ipv4.c
datagram.c
devinet.c	net: rtnetlink: plumb extended ack to doit function	2017-04-17 15:35:38 -04:00
esp4_offload.c	esp4/6: Fix GSO path for non-GSO SW-crypto packets	2017-04-19 07:48:57 +02:00
esp4.c	esp4: Fix udpencap for local TCP packets.	2017-05-04 07:27:26 +02:00
fib_frontend.c	net: Improve handling of failures on link and route dumps	2017-05-16 14:54:11 -04:00
fib_lookup.h
fib_notifier.c
fib_rules.c
fib_semantics.c	ipv4: add reference counting to metrics	2017-05-26 14:57:07 -04:00
fib_trie.c	net: Improve handling of failures on link and route dumps	2017-05-16 14:54:11 -04:00
fou.c
gre_demux.c
gre_offload.c
icmp.c	net: don't global ICMP rate limit packets originating from loopback	2017-06-14 15:33:58 -04:00
igmp.c	igmp: acquire pmc lock for ip_mc_clear_src()	2017-06-13 12:51:37 -04:00
inet_connection_sock.c	dccp/tcp: do not inherit mc_list from parent	2017-05-09 15:17:49 -04:00
inet_diag.c
inet_fragment.c
inet_hashtables.c	treewide: use kv[mz]alloc* rather than opencoded variants	2017-05-08 17:15:13 -07:00
inet_timewait_sock.c
inetpeer.c
ip_forward.c
ip_fragment.c	inet: frag: release spinlock before calling icmp_send()	2017-03-22 15:40:45 -07:00
ip_gre.c	ip_tunnel: Allow policy-based routing through tunnels	2017-04-21 13:21:31 -04:00
ip_input.c	net: Add sysctl to toggle early demux for tcp and udp	2017-03-24 13:17:07 -07:00
ip_options.c
ip_output.c
ip_sockglue.c	ipv4: get rid of ip_ra_lock	2017-04-30 22:44:04 -04:00
ip_tunnel_core.c	netlink: pass extended ACK struct to parsing functions	2017-04-13 13:58:22 -04:00
ip_tunnel.c	net: Fix inconsistent teardown and release of private netdev state.	2017-06-07 15:53:24 -04:00
ip_vti.c	vti: check nla_put_* return value	2017-05-08 15:10:31 -04:00
ipcomp.c
ipconfig.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-04-06 08:24:51 -07:00
ipip.c	ip_tunnel: Allow policy-based routing through tunnels	2017-04-21 13:21:31 -04:00
ipmr.c	net: ipmr: Fix some mroute forwarding issues in vrf's	2017-06-11 18:15:06 -04:00
Kconfig
Makefile
netfilter.c
ping.c	ping: implement proper locking	2017-03-24 20:50:28 -07:00
proc.c	net/tcp_fastopen: Add snmp counter for blackhole detection	2017-04-24 14:27:17 -04:00
protocol.c	net: Add sysctl to toggle early demux for tcp and udp	2017-03-24 13:17:07 -07:00
raw_diag.c
raw.c	ipv4, ipv6: ensure raw socket message is big enough to hold an IP header	2017-05-04 11:02:46 -04:00
route.c	ipv4: add reference counting to metrics	2017-05-26 14:57:07 -04:00
syncookies.c	tcp: randomize timestamps on syncookies	2017-05-05 12:00:11 -04:00
sysctl_net_ipv4.c	net/tcp_fastopen: Disable active side TFO in certain scenarios	2017-04-24 14:27:17 -04:00
tcp_bbr.c
tcp_bic.c
tcp_cdg.c
tcp_cong.c	tcp: disallow cwnd undo when switching congestion control	2017-06-02 14:18:13 -04:00
tcp_cubic.c	tcp_cubic: fix typo in module param description	2017-04-20 16:16:44 -04:00
tcp_dctcp.c
tcp_diag.c
tcp_fastopen.c	net/tcp_fastopen: Add snmp counter for blackhole detection	2017-04-24 14:27:17 -04:00
tcp_highspeed.c
tcp_htcp.c
tcp_hybla.c
tcp_illinois.c
tcp_input.c	tcp: eliminate negative reordering in tcp_clean_rtx_queue	2017-05-16 12:45:21 -04:00
tcp_ipv4.c	Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-10 10:30:46 -07:00
tcp_lp.c	tcp: fix wraparound issue in tcp_lp	2017-05-02 15:07:02 -04:00
tcp_metrics.c	treewide: use kv[mz]alloc* rather than opencoded variants	2017-05-08 17:15:13 -07:00
tcp_minisocks.c	tcp: do not inherit fastopen_req from parent	2017-05-04 11:00:04 -04:00
tcp_nv.c
tcp_offload.c
tcp_output.c	tcp: make congestion control optionally skip slow start after idle	2017-05-08 14:37:07 -04:00
tcp_probe.c
tcp_rate.c	tcp: do not pass timestamp to tcp_rate_gen()	2017-04-26 14:44:38 -04:00
tcp_recovery.c	tcp: tcp_rack_reo_timeout() must update tp->tcp_mstamp	2017-04-27 11:46:15 -04:00
tcp_scalable.c
tcp_timer.c	net/tcp_fastopen: Remove mss check in tcp_write_timeout()	2017-04-24 14:27:17 -04:00
tcp_vegas.c
tcp_vegas.h
tcp_veno.c
tcp_westwood.c
tcp_yeah.c
tcp.c	tcp: reinitialize MTU probing when setting MSS in a TCP repair	2017-05-31 12:28:59 -04:00
tunnel4.c
udp_diag.c
udp_impl.h	udp: make *udp*_queue_rcv_skb() functions static	2017-05-18 10:23:33 -04:00
udp_offload.c	udp: disable inner UDP checksum offloads in IPsec case	2017-04-24 13:48:54 -04:00
udp_tunnel.c
udp.c	udp: make *udp*_queue_rcv_skb() functions static	2017-05-18 10:23:33 -04:00
udplite.c
xfrm4_input.c
xfrm4_mode_beet.c
xfrm4_mode_transport.c	xfrm: Add encapsulation header offsets while SKB is not encrypted	2017-04-14 10:07:39 +02:00
xfrm4_mode_tunnel.c	xfrm: Add encapsulation header offsets while SKB is not encrypted	2017-04-14 10:07:39 +02:00
xfrm4_output.c	xfrm: Add an IPsec hardware offloading API	2017-04-14 10:06:10 +02:00
xfrm4_policy.c
xfrm4_protocol.c
xfrm4_state.c
xfrm4_tunnel.c