PWN-Hunter/android_kernel_xiaomi_sdm845
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79d44516b4
android_kernel_xiaomi_sdm845/net/ipv4
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Ilpo Järvinen 79d44516b4 tcp FRTO: work-around inorder receivers 
If receiver consumes segments successfully only in-order, FRTO
fallback to conventional recovery produces RTO loop because
FRTO's forward transmissions will always get dropped and need to
be resent, yet by default they're not marked as lost (which are
the only segments we will retransmit in CA_Loss).

Price to pay about this is occassionally unnecessarily
retransmitting the forward transmission(s). SACK blocks help
a bit to avoid this, so it's mainly a concern for NewReno case
though SACK is not fully immune either.

This change has a side-effect of fixing SACKFRTO problem where
it didn't have snd_nxt of the RTO time available anymore when
fallback become necessary (this problem would have only occured
when RTO would occur for two or more segments and ECE arrives
in step 3; no need to figure out how to fix that unless the
TODO item of selective behavior is considered in future).

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Reported-by: Damon L. Chesser <damon@damtek.com>
Tested-by: Damon L. Chesser <damon@damtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-05-13 02:54:19 -07:00
..
ipvs ipvs: fix oops in backup for fwmark conn templates 2008-04-29 03:21:23 -07:00
netfilter netfilter: assign PDE->data before gluing PDE into /proc tree 2008-05-02 02:45:42 -07:00
af_inet.c Remove duplicated unlikely() in IS_ERR() 2008-04-29 08:06:25 -07:00
ah4.c [IPSEC]: Fix bogus usage of u64 on input sequence number 2008-02-12 22:50:35 -08:00
arp.c net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
cipso_ipv4.c net: use get/put_unaligned_* helpers 2008-05-02 16:26:16 -07:00
datagram.c [IPV4] net/ipv4: Use ipv4_is_<type> 2008-01-28 14:58:15 -08:00
devinet.c [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
esp4.c [ESP]: Ensure IV is in linear part of the skb to avoid BUG() due to OOB access 2008-03-27 16:08:03 -07:00
fib_frontend.c [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
fib_hash.c [NET]: Fix heavy stack usage in seq_file output routines. 2008-04-24 01:02:16 -07:00
fib_lookup.h [IPV4] FIB_HASH: Reduce memory needs and speedup lookups 2008-01-28 15:02:46 -08:00
fib_rules.c [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
fib_semantics.c [NETNS]: Add netns refcnt debug into fib_info. 2008-04-16 02:00:50 -07:00
fib_trie.c [NET]: Fix heavy stack usage in seq_file output routines. 2008-04-24 01:02:16 -07:00
icmp.c ipv4: Update MTU to all related cache entries in ip_rt_frag_needed() 2008-04-29 03:32:25 -07:00
igmp.c net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
inet_connection_sock.c [SOCK]: Add some notes about per-bind-bucket sock lookup. 2008-04-14 02:42:27 -07:00
inet_diag.c [NETNS]: Tcp-v6 sockets per-net lookup. 2008-01-31 19:28:20 -08:00
inet_fragment.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-02 22:35:23 -07:00
inet_hashtables.c [INET]: Uninline the __inet_inherit_port call. 2008-04-17 23:18:15 -07:00
inet_lro.c [LRO] Fix lro_mgr->features checks 2008-01-08 23:30:18 -08:00
inet_timewait_sock.c [NETNS]: Add netns refcnt debug for timewait buckets. 2008-04-16 02:00:28 -07:00
inetpeer.c [INET]: Use list_head-s in inetpeer.c 2007-11-12 21:27:28 -08:00
ip_forward.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-04-02 22:35:23 -07:00
ip_fragment.c [IPV4]: Use NIPQUAD_FMT to format ipv4 addresses. 2008-04-14 04:09:00 -07:00
ip_gre.c [GRE]: Allow for IPPROTO_GRE protocol in namespaces. 2008-04-16 01:11:36 -07:00
ip_input.c net/ipv4: correct RFC 1122 section reference in comment 2008-05-08 01:11:04 -07:00
ip_options.c [IPV4]: Convert do_gettimeofday() to getnstimeofday(). 2008-04-21 02:34:08 -07:00
ip_output.c [IPv4] UFO: prevent generation of chained skb destined to UFO device 2008-04-29 22:36:30 -07:00
ip_sockglue.c net: Add compat support for getsockopt (MCAST_MSFILTER) 2008-04-29 03:23:22 -07:00
ipcomp.c net: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:15:50 -04:00
ipconfig.c net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
ipip.c [IPIP]: Allow to create IPIP tunnels in net namespaces. 2008-04-16 01:06:18 -07:00
ipmr.c [NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS. 2008-03-26 04:39:55 +09:00
Kconfig Documentation: move nfsroot.txt to filesystems/ 2008-04-11 13:18:01 -06:00
Makefile [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
netfilter.c [NETFILTER]: Add partial checksum validation helper 2008-04-14 11:15:49 +02:00
proc.c [IPV4][NETNS]: Display per-net info in sockstat file. 2008-03-31 19:43:18 -07:00
protocol.c [IPV4]: align inet_protos[] on SMP 2007-04-25 22:28:20 -07:00
raw.c net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
route.c ip: Use inline function dst_metric() instead of direct access to dst->metric[] 2008-05-04 22:14:42 -07:00
syncookies.c [Syncookies]: Add support for TCP options via timestamps. 2008-04-10 03:12:40 -07:00
sysctl_net_ipv4.c [NETNS][ICMP]: Make ctl tables for ICMP sysctls per-net. 2008-03-26 01:56:24 -07:00
tcp_bic.c [TCP]: BIC web page link is corrected. 2008-02-28 22:14:32 -08:00
tcp_cong.c tcp: Limit cwnd growth when deferring for GSO 2008-04-29 03:13:52 -07:00
tcp_cubic.c [TCP]: TCP cubic v2.2 2008-03-04 14:17:41 -08:00
tcp_diag.c [INET]: Let inet_diag and friends autoload 2007-10-22 02:59:54 -07:00
tcp_highspeed.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_htcp.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_hybla.c net: fix returning void-valued expression warnings 2008-05-01 02:47:38 -07:00
tcp_illinois.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_input.c tcp FRTO: work-around inorder receivers 2008-05-13 02:54:19 -07:00
tcp_ipv4.c ipv4: assign PDE->data before gluing PDE into /proc tree 2008-05-02 04:10:08 -07:00
tcp_lp.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_minisocks.c [TCP]: TCP_DEFER_ACCEPT updates - process as established 2008-03-21 16:33:01 -07:00
tcp_output.c [TCP]: Remove superflushious skb == write_queue_tail() check 2008-04-15 20:36:55 -07:00
tcp_probe.c tcp: tcp_probe buffer overflow and incorrect return value 2008-04-24 21:11:58 -07:00
tcp_scalable.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_timer.c [TCP]: Format addresses appropriately in debug messages. 2008-04-14 04:09:36 -07:00
tcp_vegas.c net: fix returning void-valued expression warnings 2008-05-01 02:47:38 -07:00
tcp_vegas.h [TCP]: congestion control API pass RTT in microseconds 2007-07-31 02:27:57 -07:00
tcp_veno.c net: fix returning void-valued expression warnings 2008-05-01 02:47:38 -07:00
tcp_westwood.c [TCP]: congestion control API pass RTT in microseconds 2007-07-31 02:27:57 -07:00
tcp_yeah.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp.c tcp: Trivial fix to correct function name in a comment in net/ipv4/tcp.c 2008-04-21 02:27:58 -07:00
tunnel4.c [SIT]: Allow for IPPROTO_IPV6 protocol in namespaces. 2008-04-16 01:17:39 -07:00
udp_impl.h [UDP]: Make full use of proto.h.udp_hash innovation. 2008-03-22 16:51:21 -07:00
udp.c ipv4: assign PDE->data before gluing PDE into /proc tree 2008-05-02 04:10:08 -07:00
udplite.c [UDP]: Remove owner from udp_seq_afinfo. 2008-03-28 18:25:53 -07:00
xfrm4_input.c [IPSEC]: Fix transport-mode async resume on intput without netfilter 2008-01-28 15:00:10 -08:00
xfrm4_mode_beet.c [IPSEC]: Fix BEET output 2008-03-26 16:51:09 -07:00
xfrm4_mode_transport.c [IPSEC]: Use IPv6 calling convention as the convention for x->mode->output 2007-10-10 16:55:54 -07:00
xfrm4_mode_tunnel.c [IPSEC]: Fix inter address family IPsec tunnel handling. 2008-03-24 14:51:51 -07:00
xfrm4_output.c [IPSEC]: Fix inter address family IPsec tunnel handling. 2008-03-24 14:51:51 -07:00
xfrm4_policy.c [NET] NETNS: Omit net_device->nd_net without CONFIG_NET_NS. 2008-03-26 04:39:53 +09:00
xfrm4_state.c [IPSEC]: Fix BEET output 2008-03-26 16:51:09 -07:00
xfrm4_tunnel.c [IPCOMP]: Fix reception of incompressible packets 2008-01-31 19:27:24 -08:00