Eric Dumazet c867a11289 tcp: properly scale window in tcp_v[46]_reqsk_send_ack() ... [ Upstream commit 20a2b49fc538540819a0c552877086548cff8d8d ] 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Tested-by: Holger Hoffstätte <holger@applied-asynchrony.com>		2016-09-30 10:18:34 +02:00
..
6lowpan	6lowpan: put mcast compression in an own function	2015-10-21 00:49:25 +02:00
9p	IB/cma: Add support for network namespaces	2015-10-28 12:32:48 -04:00
802
8021q	vlan: Do not put vlan headers back on bridge and macvlan ports	2015-11-17 14:38:35 -05:00
appletalk
atm	atm: deal with setting entry before mkip was called	2015-09-17 22:13:32 -07:00
ax25	AX.25: Close socket connection on session completion	2016-07-11 09:31:12 -07:00
batman-adv	batman-adv: Reduce refcnt of removed router when updating route	2016-05-11 11:21:18 +02:00
bluetooth	Bluetooth: Fix l2cap_sock_setsockopt() with optname BT_RCVMTU	2016-08-20 18:09:19 +02:00
bridge	Bridge: Fix ipv6 mc snooping if bridge has no ipv6 address	2016-07-11 09:31:11 -07:00
caif	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
can	can: avoid using timeval for uapi	2015-10-13 17:42:34 +02:00
ceph	libceph: apply new_state before new_up_client on incrementals	2016-08-10 11:49:29 +02:00
core	net_sched: fix mirrored packets checksum	2016-07-27 09:47:31 -07:00
dcb	net/dcb: make dcbnl.c explicitly non-modular	2015-10-09 07:52:27 -07:00
dccp	tcp/dccp: remove obsolete WARN_ON() in icmp handlers	2016-04-20 15:42:04 +09:00
decnet	decnet: Do not build routes to devices without decnet private data.	2016-05-18 17:06:35 -07:00
dns_resolver	net: dns_resolver: convert time_t to time64_t	2015-11-18 16:27:46 -05:00
dsa	net: dsa: use switchdev obj for VLAN add/del ops	2015-11-01 15:56:11 -05:00
ethernet	net: help compiler generate better code in eth_get_headlen	2015-09-28 22:51:15 -07:00
hsr	net/hsr: fix a warning message	2015-11-23 14:56:15 -05:00
ieee802154	net: fix percpu memory leaks	2015-11-02 22:47:14 -05:00
ipv4	tcp: properly scale window in tcp_v[46]_reqsk_send_ack()	2016-09-30 10:18:34 +02:00
ipv6	tcp: properly scale window in tcp_v[46]_reqsk_send_ack()	2016-09-30 10:18:34 +02:00
ipx
irda	net/irda: fix NULL pointer dereference on memory allocation failure	2016-08-16 09:30:48 +02:00
iucv	af_iucv: Validate socket address length in iucv_sock_bind()	2016-03-03 15:07:03 -08:00
key	af_key: fix two typos	2015-10-23 03:05:19 -07:00
l2tp	l2tp: fix configuration passed to setup_udp_tunnel_sock()	2016-06-24 10:18:17 -07:00
l3mdev	net: Add netif_is_l3_slave	2015-10-07 04:27:43 -07:00
lapb
llc	net: fix infoleak in llc	2016-05-18 17:06:40 -07:00
mac80211	mac80211: fix purging multicast PS buffer queue	2016-09-07 08:32:41 +02:00
mac802154	mac802154: llsec: use kzfree	2015-10-21 00:49:24 +02:00
mpls	mpls: find_outdev: check for err ptr in addition to NULL check	2016-04-20 15:42:07 +09:00
netfilter	netfilter: x_tables: check for size overflow	2016-09-15 08:27:50 +02:00
netlabel	netlabel: add address family checks to netlbl_{sock,req}_delattr()	2016-08-20 18:09:22 +02:00
netlink	netlink: Fix dump skb leak/double free	2016-06-24 10:18:16 -07:00
netrom
nfc	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
openvswitch	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-06-24 10:18:18 -07:00
packet	packet: Use symmetric hash for PACKET_FANOUT_HASH.	2016-07-27 09:47:31 -07:00
phonet	phonet: properly unshare skbs in phonet_rcv()	2016-01-31 11:29:00 -08:00
rds	rds: fix an infoleak in rds_inc_info_copy	2016-09-15 08:27:51 +02:00
rfkill	rfkill: fix rfkill_fop_read wait_event usage	2016-03-03 15:07:26 -08:00
rose
rxrpc	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
sched	net_sched: fix mirrored packets checksum	2016-07-27 09:47:31 -07:00
sctp	sctp: lack the check for ports in sctp_v6_cmp_addr	2016-04-20 15:41:58 +09:00
sunrpc	SUNRPC: allow for upcalls for same uid but different gss service	2016-09-07 08:32:36 +02:00
switchdev	switchdev: pass pointer to fib_info instead of copy	2016-06-24 10:18:16 -07:00
tipc	tipc: move linearization of buffers to generic code	2016-09-24 10:07:35 +02:00
unix	af_unix: fix hard linked sockets on overlay	2016-07-27 09:47:33 -07:00
vmw_vsock	VSOCK: do not disconnect socket when peer has shutdown SEND only	2016-05-18 17:06:41 -07:00
wimax	net:wimax: Fix doucble word "the the" in networking.xml	2015-08-09 22:43:52 -07:00
wireless	Revert "wext: Fix 32 bit iwpriv compatibility issue with 64 bit Kernel"	2016-09-24 10:07:41 +02:00
x25	net: fix a kernel infoleak in x25 module	2016-05-18 17:06:43 -07:00
xfrm	xfrm: Fix crash observed during device unregistration and decryption	2016-04-20 15:42:05 +09:00
compat.c
Kconfig	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
Makefile	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
socket.c	net: Fix use after free in the recvmmsg exit path	2016-04-20 15:42:03 +09:00
sysctl_net.c	net: Use ns_capable_noaudit() when determining net sysctl permissions	2016-09-15 08:27:50 +02:00