Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Eric Dumazet 3fb07daff8 ipv4: add reference counting to metrics ... Andrey Konovalov reported crashes in ipv4_mtu() I could reproduce the issue with KASAN kernels, between 10.246.7.151 and 10.246.7.152 : 1) 20 concurrent netperf -t TCP_RR -H 10.246.7.152 -l 1000 & 2) At the same time run following loop : while : do ip ro add 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500 ip ro del 10.246.7.152 dev eth0 src 10.246.7.151 mtu 1500 done Cong Wang attempted to add back rt->fi in commit 82486aa6f1 ("ipv4: restore rt->fi for reference counting") but this proved to add some issues that were complex to solve. Instead, I suggested to add a refcount to the metrics themselves, being a standalone object (in particular, no reference to other objects) I tried to make this patch as small as possible to ease its backport, instead of being super clean. Note that we believe that only ipv4 dst need to take care of the metric refcount. But if this is wrong, this patch adds the basic infrastructure to extend this to other families. Many thanks to Julian Anastasov for reviewing this patch, and Cong Wang for his efforts on this problem. Fixes: 2860583fe8 ("ipv4: Kill rt->fi") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Reviewed-by: Julian Anastasov <ja@ssi.bg> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-05-26 14:57:07 -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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-05-02 16:40:27 -07:00
ah4.c	IPsec: do not ignore crypto err in ah4 input	2017-01-16 12:57:48 +01:00
arp.c	arp: fixed -Wuninitialized compiler warning	2017-05-25 13:38:20 -04:00
cipso_ipv4.c	netlabel: out of bound access in cipso_v4_validate()	2017-02-04 19:44:22 -05:00
datagram.c
devinet.c	net: rtnetlink: plumb extended ack to doit function	2017-04-17 15:35:38 -04:00
esp4.c	esp4: Fix udpencap for local TCP packets.	2017-05-04 07:27:26 +02:00
esp4_offload.c	esp4/6: Fix GSO path for non-GSO SW-crypto packets	2017-04-19 07:48:57 +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	ipv4: fib: Remove redundant argument	2017-03-10 09:45:09 -08:00
fib_rules.c	ipv4: fib_rules: Dump FIB rules when registering FIB notifier	2017-03-16 10:18:34 -07:00
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: ipv4: add support for ECMP hash policy choice	2017-03-21 15:27:19 -07:00
igmp.c	igmp, mld: Fix memory leak in igmpv3/mld_del_delrec()	2017-02-09 16:43:45 -05:00
inet_connection_sock.c	dccp/tcp: do not inherit mc_list from parent	2017-05-09 15:17:49 -04:00
inet_diag.c	tcp: remove early retransmit	2017-01-13 22:37:16 -05:00
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	udp: avoid ufo handling on IP payload compression packets	2017-03-09 18:28:42 -08:00
ip_sockglue.c	ipv4: get rid of ip_ra_lock	2017-04-30 22:44:04 -04:00
ip_tunnel.c	ip_tunnel: Allow policy-based routing through tunnels	2017-04-21 13:21:31 -04:00
ip_tunnel_core.c	netlink: pass extended ACK struct to parsing functions	2017-04-13 13:58:22 -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	ipmr: vrf: Find VIFs using the actual device	2017-05-16 12:52:17 -04:00
Kconfig	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2017-02-16 21:25:49 -05:00
Makefile	ipv4: fib: Move FIB notification code to a separate file	2017-03-10 09:45:09 -08:00
netfilter.c	netfilter: use skb_to_full_sk in ip_route_me_harder	2017-02-28 12:49:36 +01:00
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.c	ipv4, ipv6: ensure raw socket message is big enough to hold an IP header	2017-05-04 11:02:46 -04:00
raw_diag.c
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.c	tcp: avoid fastopen API to be used on AF_UNSPEC	2017-05-25 13:30:34 -04:00
tcp_bbr.c
tcp_bic.c
tcp_cdg.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
tcp_cong.c	tcp: memset ca_priv data to 0 properly	2017-04-26 14:58:32 -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: Revert "tcp: tcp_probe: use spin_lock_bh()"	2017-02-21 13:26:03 -05:00
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_westwood: fix tcp_westwood_info() style mistakes	2017-03-16 20:23:28 -07:00
tcp_yeah.c
tunnel4.c
udp.c	udp: make *udp*_queue_rcv_skb() functions static	2017-05-18 10:23:33 -04:00
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
udplite.c
xfrm4_input.c	esp: Add a software GRO codepath	2017-02-15 11:04:11 +01:00
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	xfrm: policy: make policy backend const	2017-02-09 10:22:19 +01:00
xfrm4_protocol.c	xfrm: input: constify xfrm_input_afinfo	2017-02-09 10:22:17 +01:00
xfrm4_state.c
xfrm4_tunnel.c