Alexander Duyck 538008749d tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control ... [ Upstream commit 55472017a4 ] When setting congestion control via a BPF program it is seen that the SYN/ACK for packets within a given flow will not include the ECT0 flag. A bit of simple printk debugging shows that when this is configured without BPF we will see the value INET_ECN_xmit value initialized in tcp_assign_congestion_control however when we configure this via BPF the socket is in the closed state and as such it isn't configured, and I do not see it being initialized when we transition the socket into the listen state. The result of this is that the ECT0 bit is configured based on whatever the default state is for the socket. Any easy way to reproduce this is to monitor the following with tcpdump: tools/testing/selftests/bpf/test_progs -t bpf_tcp_ca Without this patch the SYN/ACK will follow whatever the default is. If dctcp all SYN/ACK packets will have the ECT0 bit set, and if it is not then ECT0 will be cleared on all SYN/ACK packets. With this patch applied the SYN/ACK bit matches the value seen on the other packets in the given stream. Fixes: 91b5b21c7c ("bpf: Add support for changing congestion control") Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-12-08 10:40:24 +01:00
..
6lowpan	6lowpan: no need to check return value of debugfs_create functions	2019-07-06 12:50:01 +02:00
9p	net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid	2020-11-05 11:43:20 +01:00
802	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
8021q	vlan: vlan_changelink() should propagate errors	2020-01-12 12:21:50 +01:00
appletalk	appletalk: Fix atalk_proc_init() return path	2020-08-11 15:33:40 +02:00
atm	atm: fix a memory leak of vcc->user_back	2020-10-01 13:17:58 +02:00
ax25	AX.25: Prevent integer overflows in connect and sendmsg	2020-07-31 18:39:31 +02:00
batman-adv	batman-adv: set .owner to THIS_MODULE	2020-12-02 08:49:50 +01:00
bluetooth	Bluetooth: Only mark socket zapped after unlocking	2020-10-29 09:58:06 +01:00
bpf	bpf/flow_dissector: support flags in BPF_PROG_TEST_RUN	2019-07-25 18:00:41 -07:00
bpfilter	net/bpfilter: remove superfluous testing message	2020-04-21 09:04:53 +02:00
bridge	net: bridge: add missing counters to ndo_get_stats64 callback	2020-11-24 13:28:57 +01:00
caif	net: use skb_queue_empty_lockless() in poll() handlers	2019-10-28 13:33:41 -07:00
can	can: af_can: prevent potential access of uninitialized member in canfd_rcv()	2020-11-24 13:29:05 +01:00
ceph	libceph: clear con->out_msg on Policy::stateful_server faults	2020-11-05 11:43:34 +01:00
core	sock: set sk_err to ee_errno on dequeue from errq	2020-12-08 10:40:23 +01:00
dcb	net: DCB: Validate DCB_ATTR_DCB_BUFFER argument	2020-09-26 18:03:12 +02:00
dccp	dccp: Fix possible memleak in dccp_init and dccp_fini	2020-06-17 16:40:32 +02:00
decnet	net: add bool confirm_neigh parameter for dst_ops.update_pmtu	2020-01-04 19:18:58 +01:00
dns_resolver	KEYS: Don't write out to userspace while holding key semaphore	2020-04-23 10:36:45 +02:00
dsa	dsa: Allow forwarding of redirected IGMP traffic	2020-09-23 12:40:33 +02:00
ethernet	net: add annotations on hh->hh_len lockless accesses	2020-01-09 10:20:06 +01:00
hsr	hsr: check protocol version in hsr_newlink()	2020-04-21 09:04:44 +02:00
ieee802154	nl802154: add missing attribute validation for dev_type	2020-03-18 07:17:44 +01:00
ife	net: Fix Kconfig indentation	2019-09-26 08:56:17 +02:00
ipv4	tcp: Set INET_ECN_xmit configuration in tcp_reinit_congestion_control	2020-12-08 10:40:24 +01:00
ipv6	ipv6: addrlabel: fix possible memory leak in ip6addrlbl_net_init	2020-12-08 10:40:23 +01:00
iucv	net/af_iucv: set correct sk_protocol for child sockets	2020-12-08 10:40:23 +01:00
kcm	kcm: disable preemption in kcm_parse_func_strparser()	2019-09-27 10:27:14 +02:00
key	af_key: pfkey_dump needs parameter validation	2020-09-26 18:03:10 +02:00
l2tp	l2tp: remove skb_dst_set() from l2tp_xmit_skb()	2020-07-22 09:32:47 +02:00
l3mdev	ipv6: convert major tx path to use RT6_LOOKUP_F_DST_NOREF	2019-06-23 13:24:17 -07:00
lapb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-17 20:20:36 -07:00
llc	net: silence data-races on sk_backlog.tail	2020-10-01 13:17:15 +02:00
mac80211	mac80211: free sta in sta_info_insert_finish() on errors	2020-11-24 13:29:23 +01:00
mac802154	mac802154: tx: fix use-after-free	2020-10-01 13:18:17 +02:00
mpls	net: ipv6_stub: use ip6_dst_lookup_flow instead of ip6_dst_lookup	2019-12-18 16:08:42 +01:00
ncsi	net/ncsi: Fix netlink registration	2020-11-24 13:29:00 +01:00
netfilter	netfilter: ipset: Update byte and packet counters regardless of whether they match	2020-11-18 19:20:17 +01:00
netlabel	netlabel: fix an uninitialized warning in netlbl_unlabel_staticlist()	2020-11-24 13:28:57 +01:00
netlink	genetlink: remove genl_bind	2020-07-22 09:32:46 +02:00
netrom	net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node	2020-04-29 16:33:08 +02:00
nfc	nfc: Ensure presence of NFC_ATTR_FIRMWARE_NAME attribute in nfc_genl_fw_download()	2020-10-29 09:57:26 +01:00
nsh	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
openvswitch	openvswitch: handle DNAT tuple collision	2020-10-14 10:33:02 +02:00
packet	net/packet: fix overflow in tpacket_rcv	2020-09-09 19:12:29 +02:00
phonet	net: use skb_queue_empty_lockless() in poll() handlers	2019-10-28 13:33:41 -07:00
psample	net: psample: fix skb_over_panic	2019-12-04 22:30:54 +01:00
qrtr	net: qrtr: check skb_put_padto() return value	2020-09-26 18:03:15 +02:00
rds	rds: Prevent kernel-infoleak in rds_notify_queue_get()	2020-08-05 09:59:44 +02:00
rfkill	rfkill: Fix use-after-free in rfkill_resume()	2020-11-24 13:29:05 +01:00
rose	rose: Fix Null pointer dereference in rose_send_frame()	2020-12-08 10:40:23 +01:00
rxrpc	rxrpc: Fix server keyring leak	2020-10-14 10:33:05 +02:00
sched	net: sch_generic: fix the missing new qdisc assignment bug	2020-11-18 19:20:33 +01:00
sctp	sctp: change to hold/put transport for proto_unreach_timer	2020-11-24 13:28:59 +01:00
smc	net/smc: fix direct access to ib_gid_addr->ndev in smc_ib_determine_gid()	2020-11-24 13:28:58 +01:00
strparser	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2019-06-22 08:59:24 -04:00
sunrpc	SUNRPC: Mitigate cond_resched() in xprt_transmit()	2020-11-05 11:43:18 +01:00
switchdev	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
tipc	tipc: fix memory leak in tipc_topsrv_start()	2020-11-18 19:20:33 +01:00
tls	net/tls: Protect from calling tls_dev_del for TLS RX twice	2020-12-08 10:40:23 +01:00
unix	skbuff: fix a data race in skb_queue_len()	2020-10-01 13:17:31 +02:00
vmw_vsock	vsock: use ns_capable_noaudit() on socket create	2020-11-10 12:37:30 +01:00
wimax	wimax: no need to check return value of debugfs_create functions	2019-08-10 15:25:47 -07:00
wireless	cfg80211: regulatory: Fix inconsistent format argument	2020-11-18 19:20:23 +01:00
x25	net: x25: Increase refcnt of "struct x25_neigh" in x25_rx_call_request	2020-11-24 13:28:58 +01:00
xdp	xdp: Fix xsk_generic_xmit errno	2020-06-24 17:50:44 +02:00
xfrm	net: xfrm: fix a race condition during allocing spi	2020-11-18 19:20:17 +01:00
Kconfig	net: Fix CONFIG_NET_CLS_ACT=n and CONFIG_NFT_FWD_NETDEV={y, m} build	2020-04-01 11:02:18 +02:00
Makefile	net: split out functions related to registering inflight socket files	2019-02-28 08:24:23 -07:00
compat.c	net/compat: Add missing sock updates for SCM_RIGHTS	2020-08-21 13:05:25 +02:00
socket.c	net: Set fput_needed iff FDPUT_FPUT is set	2020-08-19 08:16:22 +02:00
sysctl_net.c	treewide: Add SPDX license identifier for missed files	2019-05-21 10:50:45 +02:00