Eric Dumazet 20a2b49fc5 tcp: properly scale window in tcp_v[46]_reqsk_send_ack() ...

When sending an ack in SYN_RECV state, we must scale the offered
window if wscale option was negotiated and accepted.

Tested:
 Following packetdrill test demonstrates the issue :

0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0

+0 bind(3, ..., ...) = 0
+0 listen(3, 1) = 0

// Establish a connection.
+0 < S 0:0(0) win 20000 <mss 1000,sackOK,wscale 7, nop, TS val 100 ecr 0>
+0 > S. 0:0(0) ack 1 win 28960 <mss 1460,sackOK, TS val 100 ecr 100, nop, wscale 7>

+0 < . 1:11(10) ack 1 win 156 <nop,nop,TS val 99 ecr 100>
// check that window is properly scaled !
+0 > . 1:1(0) ack 1 win 226 <nop,nop,TS val 200 ecr 100>

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2016-08-23 16:55:49 -07:00

..

ila

ila: Fix checksum neutral mapping

2016-06-15 21:40:00 -07:00

netfilter

netfilter: x_tables: speed up jump target validation

2016-07-18 21:35:23 +02:00

addrconf_core.c

ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument

2015-07-31 15:21:30 -07:00

addrconf.c

net: ipv6: Remove addresses for failures with strict DAD

2016-08-22 16:59:37 -07:00

addrlabel.c

ipv6/addrlabel: fix ip6addrlbl_get()

2015-12-22 15:57:54 -05:00

af_inet6.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

2016-07-29 17:38:46 -07:00

ah6.c

ah6: fix error return code

2015-08-25 13:37:31 -07:00

anycast.c

ipv6: coding style: comparison for equality with NULL

2015-03-31 13:51:54 -04:00

calipso.c

calipso: fix resource leak on calipso_genopt failure

2016-08-13 14:56:17 -07:00

datagram.c

sock: propagate __sock_cmsg_send() error

2016-05-16 13:46:23 -04:00

esp6.c

esp6: Switch to new AEAD interface

2015-05-28 11:23:20 +08:00

exthdrs_core.c

ipv6: constify the skb pointer of ipv6_find_tlv().

2016-06-27 15:06:15 -04:00

exthdrs_offload.c

ipv6: fix exthdrs offload registration in out_rt path

2015-09-02 15:31:00 -07:00

exthdrs.c

Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next

2016-07-07 10:15:34 +10:00

fib6_rules.c

net: Add l3mdev rule

2016-06-08 11:36:02 -07:00

fou6.c

fou: add Kconfig options for IPv6 support

2016-05-29 22:24:21 -07:00

icmp.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-06-30 05:03:36 -04:00

inet6_connection_sock.c

soreuseport: fast reuseport TCP socket selection

2016-02-11 03:54:15 -05:00

inet6_hashtables.c

net: rename NET_{ADD|INC}_STATS_BH()

2016-04-27 22:48:24 -04:00

ip6_checksum.c

ipv6: fix checksum annotation in udp6_csum_init

2016-06-14 15:26:42 -04:00

ip6_fib.c

ipv6: Fix mem leak in rt6i_pcpu

2016-07-05 14:09:23 -07:00

ip6_flowlabel.c

ipv6: add new struct ipcm6_cookie

2016-05-03 16:08:14 -04:00

ip6_gre.c

gre: set inner_protocol on xmit

2016-08-15 13:37:12 -07:00

ip6_icmp.c

ipv6: icmp: add a force_saddr param to icmp6_send()

2016-06-18 22:11:38 -07:00

ip6_input.c

net: vrf: ipv6 support for local traffic to local addresses

2016-06-08 00:25:38 -07:00

ip6_offload.c

ip4ip6: Support for GSO/GRO

2016-05-20 18:03:17 -04:00

ip6_offload.h

udp: Add GRO functions to UDP socket

2016-04-07 16:53:29 -04:00

ip6_output.c

net: vrf: Implement get_saddr for IPv6

2016-06-17 21:25:29 -07:00

ip6_tunnel.c

ipv6: Don't reset inner headers in ip6_tnl_xmit

2016-05-20 18:03:17 -04:00

ip6_udp_tunnel.c

ip_tunnel: add support for setting flow label via collect metadata

2016-03-11 15:14:26 -05:00

ip6_vti.c

net: replace dst_cache ip6_tunnel implementation with the generic one

2016-02-16 20:21:48 -05:00

ip6mr.c

net: ipmr/ip6mr: update lastuse on entry change

2016-07-26 15:18:31 -07:00

ipcomp6.c

ipv6: White-space cleansing : Structure layouts

2014-08-24 22:37:52 -07:00

ipv6_sockglue.c

Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next

2016-07-07 10:15:34 +10:00

Kconfig

fou: fix IPv6 Kconfig options

2016-05-31 14:07:49 -07:00

Makefile

Merge branch 'stable-4.8' of git://git.infradead.org/users/pcmoore/selinux into next

2016-07-07 10:15:34 +10:00

mcast_snoop.c

net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code

2015-08-13 17:08:39 -07:00

mcast.c

mld, igmp: Fix reserved tailroom calculation

2016-03-03 15:41:07 -05:00

mip6.c

ipv6: use ktime_t for internal timestamps

2015-10-05 03:16:47 -07:00

ndisc.c

ipv6: export several functions

2016-06-15 20:41:23 -07:00

netfilter.c

ipv6: Pass struct net into ip6_route_me_harder

2015-09-29 20:21:32 +02:00

output_core.c

ipv4, ipv6: Pass net into ip_local_out and ip6_local_out

2015-10-08 04:27:02 -07:00

ping.c

net: ipv6: Fix ping to link-local addresses.

2016-08-15 12:19:09 -07:00

proc.c

udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts

2014-11-07 15:45:50 -05:00

protocol.c

net: Export inet_offloads and inet6_offloads

2014-09-19 17:15:31 -04:00

raw.c

ipv6: use TOS marks from sockets for routing decision

2016-06-11 15:33:26 -07:00

reassembly.c

ipv6: rename IP6_INC_STATS_BH()

2016-04-27 22:48:24 -04:00

route.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-06-30 05:03:36 -04:00

sit.c

sit: support MPLS over IPv4

2016-07-09 17:45:56 -04:00

syncookies.c

net: rename NET_{ADD|INC}_STATS_BH()

2016-04-27 22:48:24 -04:00

sysctl_net_ipv6.c

calipso: Add a label cache.

2016-06-27 15:06:17 -04:00

tcp_ipv6.c

tcp: properly scale window in tcp_v[46]_reqsk_send_ack()

2016-08-23 16:55:49 -07:00

tcpv6_offload.c

tcp: cleanup static functions

2015-02-28 16:56:51 -05:00

tunnel6.c

ipv6: fix tunnel error handling

2015-11-03 10:52:13 -05:00

udp_impl.h

net: Remove iocb argument from sendmsg and recvmsg

2015-03-02 13:06:31 -05:00

udp_offload.c

gso: Remove arbitrary checks for unsupported GSO

2016-05-20 18:03:15 -04:00

udp.c

udp: use sk_filter_trim_cap for udp{,6}_queue_rcv_skb

2016-07-25 21:40:33 -07:00

udplite.c

net: Eliminate no_check from protosw

2014-05-23 16:28:53 -04:00

xfrm6_input.c

netfilter: Pass struct net into the netfilter hooks

2015-09-17 17:18:37 -07:00

xfrm6_mode_beet.c

xfrm: simplify xfrm_address_t use

2015-03-31 13:58:35 -04:00

xfrm6_mode_ro.c

ipv4/ipv6: Fix FSF address in file headers

2013-12-06 12:37:56 -05:00

xfrm6_mode_transport.c

…

xfrm6_mode_tunnel.c

ipv6: update skb->csum when CE mark is propagated

2016-01-15 15:07:23 -05:00

xfrm6_output.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-10-24 06:54:12 -07:00

xfrm6_policy.c

net: xfrm: fix old-style declaration

2016-06-16 22:06:30 -07:00

xfrm6_protocol.c

xfrm6: Properly handle unsupported protocols

2014-05-06 07:08:38 +02:00

xfrm6_state.c

ipv6: White-space cleansing : Line Layouts

2014-08-24 22:37:52 -07:00

xfrm6_tunnel.c

ipv6: White-space cleansing : gaps between function and symbol export

2014-08-24 22:37:52 -07:00