Eric Dumazet 36b9c7cc09 tcp: fix tcpi_segs_in after connection establishment ... [ Upstream commit a9d99ce28ed359d68cf6f3c1a69038aefedf6d6a ] If final packet (ACK) of 3WHS is lost, it appears we do not properly account the following incoming segment into tcpi_segs_in While we are at it, starts segs_in with one, to count the SYN packet. We do not yet count number of SYN we received for a request sock, we might add this someday. packetdrill script showing proper behavior after fix : // Tests tcpi_segs_in when 3rd packet (ACK) of 3WHS is lost 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 +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop> +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK> +.020 < P. 1:1001(1000) ack 1 win 32792 +0 accept(3, ..., ...) = 4 +.000 %{ assert tcpi_segs_in == 2, 'tcpi_segs_in=%d' % tcpi_segs_in }% Fixes: 2efd055c53 ("tcp: add tcpi_segs_in and tcpi_segs_out to tcp_info") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2016-04-20 15:42:00 +09:00
..
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	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
batman-adv	batman-adv: Drop immediate orig_node free function	2016-01-31 11:29:02 -08:00
bluetooth	Bluetooth: Fix potential buffer overflow with Add Advertising	2016-04-12 09:08:54 -07:00
bridge	switchdev: Require RTNL mutex to be held when sending FDB notifications	2016-03-03 15:07:04 -08:00
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: don't spam dmesg with stray reply warnings	2016-03-03 15:07:26 -08:00
core	net: fix bridge multicast packet checksum validation	2016-04-20 15:41:58 +09:00
dcb	net/dcb: make dcbnl.c explicitly non-modular	2015-10-09 07:52:27 -07:00
dccp	tcp/dccp: fix another race at listener dismantle	2016-03-03 15:07:07 -08:00
decnet	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
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: fix tcpi_segs_in after connection establishment	2016-04-20 15:42:00 +09:00
ipv6	udp6: fix UDP/IPv6 encap resubmit path	2016-04-20 15:42:00 +09:00
ipx
irda	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
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 error creating L2TP tunnels	2016-03-03 15:07:07 -08:00
l3mdev	net: Add netif_is_l3_slave	2015-10-07 04:27:43 -07:00
lapb
llc
mac80211	mac80211: Fix Public Action frame RX in AP mode	2016-03-16 08:43:00 -07:00
mac802154	mac802154: llsec: use kzfree	2015-10-21 00:49:24 +02:00
mpls	mpls: make via address optional for multipath routes	2015-12-12 00:43:44 -05:00
netfilter	netfilter: nft_ct: include direction when dumping NFT_CT_L3PROTOCOL key	2015-12-18 14:45:45 +01:00
netlabel
netlink	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
netrom
nfc	net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA	2015-12-01 15:45:05 -05:00
openvswitch	lwt: fix rx checksum setting for lwt devices tunneling over ipv6	2016-03-03 15:07:04 -08:00
packet	packet: Allow packets with only a header (but no payload)	2015-11-29 22:17:17 -05:00
phonet	phonet: properly unshare skbs in phonet_rcv()	2016-01-31 11:29:00 -08:00
rds	RDS: fix race condition when sending a message on unbound socket	2015-11-24 17:20:09 -05:00
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: reclassification needs to consider ether protocol changes	2016-03-03 15:07:07 -08:00
sctp	sctp: lack the check for ports in sctp_v6_cmp_addr	2016-04-20 15:41:58 +09:00
sunrpc	sunrpc/cache: fix off-by-one in qword_get()	2016-03-03 15:07:29 -08:00
switchdev	switchdev: Require RTNL mutex to be held when sending FDB notifications	2016-03-03 15:07:04 -08:00
tipc	tipc: Revert "tipc: use existing sk_write_queue for outgoing packet chain"	2016-04-20 15:41:58 +09:00
unix	unix_diag: fix incorrect sign extension in unix_lookup_by_ino	2016-03-03 15:07:07 -08:00
vmw_vsock	VSOCK: call sk->sk_data_ready() on accept()	2015-11-04 22:03:10 -05:00
wimax
wireless	cfg80211/wext: fix message ordering	2016-03-16 08:42:59 -07:00
x25
xfrm	net: preserve IP control block during GSO segmentation	2016-01-31 11:29:00 -08:00
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, socket, socket_wq: fix missing initialization of flags	2015-12-30 16:38:01 -05:00
sysctl_net.c	net: sysctl: fix a kmemleak warning	2015-10-23 06:22:08 -07:00