Soheil Hassas Yeganeh 9c946c931b tcp: consider recv buf for the initial window scale ... [ Upstream commit f626300a3e776ccc9671b0dd94698fb3aa315966 ] tcp_select_initial_window() intends to advertise a window scaling for the maximum possible window size. To do so, it considers the maximum of net.ipv4.tcp_rmem[2] and net.core.rmem_max as the only possible upper-bounds. However, users with CAP_NET_ADMIN can use SO_RCVBUFFORCE to set the socket's receive buffer size to values larger than net.ipv4.tcp_rmem[2] and net.core.rmem_max. Thus, SO_RCVBUFFORCE is effectively ignored by tcp_select_initial_window(). To fix this, consider the maximum of net.ipv4.tcp_rmem[2], net.core.rmem_max and socket's initial buffer space. Fixes: b0573dea1f ("[NET]: Introduce SO_{SND,RCV}BUFFORCE socket options") Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com> Suggested-by: Neal Cardwell <ncardwell@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>		2016-08-16 09:30:48 +02:00
..
netfilter	netfilter: x_tables: introduce and use xt_copy_counters_from_user	2016-06-24 10:18:24 -07:00
af_inet.c	net: add validation for the socket syscall protocol argument	2015-12-14 16:09:30 -05:00
ah4.c	ah4: Fix error return in ah_input().	2015-08-25 13:38:50 -07:00
arp.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-20 06:08:27 -07:00
cipso_ipv4.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
datagram.c	net: Set sk_txhash from a random number	2015-07-29 22:44:04 -07:00
devinet.c	ipv4: Don't do expensive useless work during inetdev destroy.	2016-04-20 15:42:03 +09:00
esp4.c	esp: Fix ESN generation under UDP encapsulation	2016-07-11 09:31:11 -07:00
fib_frontend.c	ipv4/fib: don't warn when primary address is missing if in_dev is dead	2016-05-18 17:06:36 -07:00
fib_lookup.h	ipv4: consider TOS in fib_select_default	2015-07-24 22:46:11 -07:00
fib_rules.c	net: ipv6: use common fib_default_rule_pref	2015-09-09 14:19:50 -07:00
fib_semantics.c	ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space	2016-08-16 09:30:47 +02:00
fib_trie.c	fib_trie: leaf_walk_rcu should not compute key if key is less than pn->key	2015-10-27 18:14:51 -07:00
fou.c	fou: clean up socket with kfree_rcu	2015-12-16 19:03:02 -05:00
gre_demux.c	gre: Remove support for sharing GRE protocol hook.	2015-08-10 14:03:54 -07:00
gre_offload.c	ipv6: gre: support SIT encapsulation	2015-10-26 22:01:18 -07:00
icmp.c	Revert "ipv4/icmp: redirect messages can use the ingress daddr as source"	2015-10-14 06:01:07 -07:00
igmp.c	mld, igmp: Fix reserved tailroom calculation	2016-04-20 15:41:58 +09:00
inet_connection_sock.c	tcp/dccp: fix another race at listener dismantle	2016-03-03 15:07:07 -08:00
inet_diag.c	tcp/dccp: install syn_recv requests into ehash table	2015-10-03 04:32:41 -07:00
inet_fragment.c	net: fix percpu memory leaks	2015-11-02 22:47:14 -05:00
inet_hashtables.c	tcp/dccp: fix hashdance race for passive sessions	2015-10-23 05:42:21 -07:00
inet_lro.c
inet_timewait_sock.c	tcp/dccp: fix timewait races in timer handling	2015-09-21 16:32:29 -07:00
inetpeer.c	net: Add helper function to compare inetpeer addresses	2015-08-28 13:32:36 -07:00
ip_forward.c	net: Pass net into dst_output and remove dst_output_okfn	2015-10-08 04:26:54 -07:00
ip_fragment.c	inet: frag: Always orphan skbs inside ip_defrag()	2016-03-03 15:07:04 -08:00
ip_gre.c	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-06-24 10:18:18 -07:00
ip_input.c	ipv4: Pass struct net into ip_defrag and ip_check_defrag	2015-10-12 19:44:16 -07:00
ip_options.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
ip_output.c	ipv4: only create late gso-skb if skb is already set up with CHECKSUM_PARTIAL	2016-04-20 15:41:57 +09:00
ip_sockglue.c	ipv4: fix memory leaks in ip_cmsg_send() callers	2016-03-03 15:07:06 -08:00
ip_tunnel.c	vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices	2016-06-24 10:18:18 -07:00
ip_tunnel_core.c	ipv4, ipv6: Pass net into ip_local_out and ip6_local_out	2015-10-08 04:27:02 -07:00
ip_vti.c	net: Pass net into dst_output and remove dst_output_okfn	2015-10-08 04:26:54 -07:00
ipcomp.c	ipv4: coding style: comparison for equality with NULL	2015-04-03 12:11:15 -04:00
ipconfig.c	ipconfig: send Client-identifier in DHCP requests	2015-10-18 19:23:52 -07:00
ipip.c	ipip: ioctl: Remove superfluous IP-TTL handling.	2015-12-18 16:07:59 -05:00
ipmr.c	ipmr/ip6mr: Initialize the last assert time of mfc entries.	2016-07-11 09:31:11 -07:00
Kconfig	geneve: Consolidate Geneve functionality in single module.	2015-08-27 15:42:48 -07:00
Makefile	tcp: track the packet timings in RACK	2015-10-21 07:00:48 -07:00
netfilter.c	ipv4: Pass struct net into ip_route_me_harder	2015-09-29 20:21:32 +02:00
ping.c	ipv4: fix memory leaks in ip_cmsg_send() callers	2016-03-03 15:07:06 -08:00
proc.c	net: track success and failure of TCP PMTU probing	2015-07-21 22:36:33 -07:00
protocol.c	net: Export inet_offloads and inet6_offloads	2014-09-19 17:15:31 -04:00
raw.c	ipv4: fix memory leaks in ip_cmsg_send() callers	2016-03-03 15:07:06 -08:00
route.c	route: do not cache fib route info on local routes with oif	2016-05-18 17:06:35 -07:00
syncookies.c	tcp/dccp: fix hashdance race for passive sessions	2015-10-23 05:42:21 -07:00
sysctl_net_ipv4.c	ipv4: disable BH when changing ip local port range	2015-11-04 21:29:06 -05:00
tcp.c	net:Add sysctl_max_skb_frags	2016-03-03 15:07:05 -08:00
tcp_bic.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_cdg.c	tcp: do not slow start when cwnd equals ssthresh	2015-07-09 14:22:52 -07:00
tcp_cong.c	tcp: remove tcp_ecn_make_synack() socket argument	2015-09-25 13:00:38 -07:00
tcp_cubic.c	tcp_cubic: do not set epoch_start in the future	2015-09-17 22:35:07 -07:00
tcp_dctcp.c	tcp: allow dctcp alpha to drop to zero	2015-10-23 02:46:52 -07:00
tcp_diag.c	tcp: ensure proper barriers in lockless contexts	2015-11-15 18:36:38 -05:00
tcp_fastopen.c	tcp/dccp: fix hashdance race for passive sessions	2015-10-23 05:42:21 -07:00
tcp_highspeed.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_htcp.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_hybla.c	tcp: do not slow start when cwnd equals ssthresh	2015-07-09 14:22:52 -07:00
tcp_illinois.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_input.c	tcp: enable per-socket rate limiting of all 'challenge acks'	2016-08-16 09:30:47 +02:00
tcp_ipv4.c	tcp/dccp: remove obsolete WARN_ON() in icmp handlers	2016-04-20 15:42:04 +09:00
tcp_lp.c
tcp_memcontrol.c	memcg: cleanup static keys decrement	2015-02-12 18:54:10 -08:00
tcp_metrics.c	tcp: convert cached rtt from usec to jiffies when feeding initial rto	2016-04-20 15:41:56 +09:00
tcp_minisocks.c	tcp: fix tcpi_segs_in after connection establishment	2016-04-20 15:42:00 +09:00
tcp_offload.c	tcp: reserve tcp_skb_mss() to tcp stack	2015-06-11 16:33:10 -07:00
tcp_output.c	tcp: consider recv buf for the initial window scale	2016-08-16 09:30:48 +02:00
tcp_probe.c	tcp: whitespace fixes	2014-09-01 18:12:45 -07:00
tcp_recovery.c	tcp: use RACK to detect losses	2015-10-21 07:00:53 -07:00
tcp_scalable.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_timer.c	tcp: fix Fast Open snmp over-counting bug	2015-11-20 10:51:12 -05:00
tcp_vegas.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_vegas.h	tcp: prepare CC get_info() access from getsockopt()	2015-04-29 17:10:38 -04:00
tcp_veno.c	tcp: add tcp_in_slow_start helper	2015-07-09 14:22:52 -07:00
tcp_westwood.c	tcp_westwood: fix tcp_westwood_info()	2015-05-05 19:50:09 -04:00
tcp_yeah.c	tcp_yeah: don't set ssthresh below 2	2016-01-31 11:28:59 -08:00
tunnel4.c
udp.c	udp: prevent skbs lingering in tunnel socket queues	2016-06-24 10:18:16 -07:00
udp_diag.c	sock_diag: specify info_size per inet protocol	2015-06-15 19:49:22 -07:00
udp_impl.h	net: Remove iocb argument from sendmsg and recvmsg	2015-03-02 13:06:31 -05:00
udp_offload.c	ipv4: coding style: comparison for inequality with NULL	2015-04-03 12:11:15 -04:00
udp_tunnel.c	tunnel: Clear IPCB(skb)->opt before dst_link_failure called	2016-04-20 15:41:56 +09:00
udplite.c
xfrm4_input.c	netfilter: Pass net into okfn	2015-09-17 17:18:37 -07:00
xfrm4_mode_beet.c
xfrm4_mode_transport.c
xfrm4_mode_tunnel.c	ipv4: hash net ptr into fragmentation bucket selection	2015-03-25 14:07:04 -04:00
xfrm4_output.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-24 06:54:12 -07:00
xfrm4_policy.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2015-12-22 16:26:31 -05:00
xfrm4_protocol.c	xfrm4: Remove duplicate semicolon	2014-06-30 07:49:47 +02:00
xfrm4_state.c
xfrm4_tunnel.c