Paolo Abeni 000ac44da7 udp: fixup csum for GSO receive slow path ... When UDP packets generated locally by a socket with UDP_SEGMENT traverse the following path: UDP tunnel(xmit) -> veth (segmentation) -> veth (gro) -> UDP tunnel (rx) -> UDP socket (no UDP_GRO) ip_summed will be set to CHECKSUM_PARTIAL at creation time and such checksum mode will be preserved in the above path up to the UDP tunnel receive code where we have: __iptunnel_pull_header() -> skb_pull_rcsum() -> skb_postpull_rcsum() -> __skb_postpull_rcsum() The latter will convert the skb to CHECKSUM_NONE. The UDP GSO packet will be later segmented as part of the rx socket receive operation, and will present a CHECKSUM_NONE after segmentation. Additionally the segmented packets UDP CB still refers to the original GSO packet len. Overall that causes unexpected/wrong csum validation errors later in the UDP receive path. We could possibly address the issue with some additional checks and csum mangling in the UDP tunnel code. Since the issue affects only this UDP receive slow path, let's set a suitable csum status there. Note that SKB_GSO_UDP_L4 or SKB_GSO_FRAGLIST packets lacking an UDP encapsulation present a valid checksum when landing to udp_queue_rcv_skb(), as the UDP checksum has been validated by the GRO engine. v2 -> v3: - even more verbose commit message and comments v1 -> v2: - restrict the csum update to the packets strictly needing them - hopefully clarify the commit message and code comments Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-03-30 17:06:49 -07:00
..
9p	9p: apply review requests for fid refcounting	2020-11-19 17:21:34 +01:00
bluetooth	Bluetooth: Skip eSCO 2M params when not supported	2021-02-01 17:04:17 +01:00
caif	net: caif: Remove unused caif SPI driver	2020-09-29 14:02:53 -07:00
iucv	net/af_iucv: don't track individual TX skbs for TRANS_HIPER sockets	2021-01-28 20:36:21 -08:00
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-03-25 15:31:22 -07:00
netns	net: add sysctl for enabling RFC 8335 PROBE messages	2021-03-30 13:29:39 -07:00
nfc	net/nfc/nci: Support NCI 2.x initial sequence	2020-12-04 17:47:35 -08:00
phonet	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336	2019-06-05 17:37:07 +02:00
sctp	sctp: bring inet(6)_skb_parm back to sctp_input_cb	2020-11-05 14:27:30 -08:00
tc_act	net/sched: act_police: add support for packet-per-second policing	2021-03-13 14:18:09 -08:00
6lowpan.h	6lowpan: Replace zero-length array with flexible-array member	2020-02-28 14:51:30 +01:00
Space.h	…
act_api.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2021-02-16 17:51:13 -08:00
addrconf.h	ipv6: some fixes for ipv6_dev_find()	2020-08-18 15:58:53 -07:00
af_ieee802154.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
af_rxrpc.h	rxrpc: Make rxrpc_kernel_get_srtt() indicate validity	2020-08-20 18:21:28 +01:00
af_unix.h	unix: uses an atomic type for scm files accounting	2020-02-28 12:12:53 -08:00
af_vsock.h	vsock: add local transport support in the vsock core	2019-12-11 15:01:23 -08:00
ah.h	…
arp.h	net: avoid potential false sharing in neighbor related code	2019-11-06 16:14:48 -08:00
atmclip.h	…
ax25.h	ax25: fix possible use-after-free	2019-01-23 11:18:00 -08:00
ax88796.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
bareudp.h	bareudp: Reverted support to enable & disable rx metadata collection	2020-07-21 18:30:47 -07:00
bond_3ad.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 90	2019-05-24 17:37:53 +02:00
bond_alb.h	bonding/alb: Add helper functions to get the xmit slave	2020-05-01 12:15:37 -07:00
bond_options.h	bonding: add an option to specify a delay between peer notifications	2019-07-04 12:30:48 -07:00
bonding.h	net/bonding: Declare TLS RX device offload support	2021-01-18 20:48:40 -08:00
bpf_sk_storage.h	bpf: Allow using bpf_sk_storage in FENTRY/FEXIT/RAW_TP	2020-11-12 18:39:28 -08:00
busy_poll.h	net, xdp, xsk: fix __sk_mark_napi_id_once napi_id error	2020-12-01 15:51:19 +01:00
calipso.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
cfg80211-wext.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
cfg80211.h	cfg80211/mac80211: Support disabling HE mode	2021-02-12 09:33:34 +01:00
cfg802154.h	cfg802154: Replace zero-length array with flexible-array member	2020-02-29 14:39:08 +01:00
checksum.h	saner calling conventions for csum_and_copy_..._user()	2020-08-20 15:45:15 -04:00
cipso_ipv4.h	cipso: Remove unused inline functions	2020-07-15 07:45:24 -07:00
cls_cgroup.h	bpf: Allow to retrieve cgroup v1 classid from v2 hooks	2020-03-27 19:40:38 -07:00
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	compat: always include linux/compat.h from net/compat.h	2020-11-23 13:31:54 -08:00
datalink.h	…
dcbevent.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
dcbnl.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201	2019-05-30 11:29:52 -07:00
devlink.h	devlink: Fix dmac_filter trap name, align to its documentation	2021-02-11 13:04:49 -08:00
dn.h	…
dn_dev.h	…
dn_fib.h	net: dn_fib: Replace zero-length array with flexible-array member	2020-02-29 21:52:20 -08:00
dn_neigh.h	…
dn_nsp.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24	2019-05-21 11:52:39 +02:00
dn_route.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 24	2019-05-21 11:52:39 +02:00
dsa.h	net: dsa: Add helper to resolve bridge port from DSA port	2021-03-18 16:24:06 -07:00
dsfield.h	ipv6: Annotate bitwise IPv6 dsfield pointer cast	2019-12-16 16:09:44 -08:00
dst.h	net: Consolidate common blackhole dst ops	2021-03-10 12:24:18 -08:00
dst_cache.h	…
dst_metadata.h	…
dst_ops.h	net/dst: use a smaller percpu_counter batch for dst entries accounting	2020-05-08 21:33:33 -07:00
erspan.h	erspan: Add type I version 0 support.	2020-05-05 13:23:29 -07:00
esp.h	ESP: Export esp_output_fill_trailer function	2020-02-19 13:52:32 +01:00
espintcp.h	xfrm: espintcp: save and call old ->sk_destruct	2020-04-20 07:34:16 +02:00
ethoc.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
failover.h	…
fib_notifier.h	ipv6: Remove old route notifications and convert listeners	2019-12-24 22:37:30 -08:00
fib_rules.h	fib: use indirect call wrappers in the most common fib_rules_ops	2020-07-28 17:42:31 -07:00
firewire.h	…
flow.h	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
flow_dissector.h	flow_dissector: constify raw input data argument	2021-03-14 14:46:32 -07:00
flow_offload.h	net: flow_offload: add FLOW_ACTION_PPPOE_PUSH	2021-03-24 12:48:39 -07:00
fou.h	…
fq.h	net/fq_impl: do not maintain a backlog-sorted list of flows	2021-01-21 13:33:45 +01:00
fq_impl.h	net/fq_impl: do not maintain a backlog-sorted list of flows	2021-01-21 13:33:45 +01:00
garp.h	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
gen_stats.h	net_sched: extend packet counter to 64bit	2019-11-05 18:20:55 -08:00
genetlink.h	mptcp: avoid lock_fast usage in accept path	2021-02-12 16:31:46 -08:00
geneve.h	net: Move the definition of the default Geneve udp port to public header file	2019-03-22 12:09:31 -07:00
gre.h	ip_gre: add csum offload support for gre header	2021-01-29 20:39:14 -08:00
gro.h	gro: add combined call_gro_receive() + INDIRECT_CALL_INET() helper	2021-03-18 19:51:12 -07:00
gro_cells.h	…
gtp.h	…
gue.h	GUE: Fix a typo	2020-06-22 21:12:44 -07:00
hwbm.h	net: hwbm: if CONFIG_NET_HWBM unset, make stub functions static	2019-10-25 16:24:32 -07:00
icmp.h	net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending	2021-02-23 11:29:52 -08:00
ieee80211_radiotap.h	mac80211: add radiotap flag to assure frames are not reordered	2020-11-06 11:01:01 +01:00
ieee802154_netdev.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
if_inet6.h	mld: add mc_lock for protecting per-interface mld data	2021-03-26 15:14:56 -07:00
ife.h	net: ife: drop include of module.h from net/ife.h	2019-04-22 21:50:53 -07:00
ila.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
inet6_connection_sock.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
inet6_hashtables.h	net: Track socket refcounts in skb_steal_sock()	2020-03-30 13:45:04 -07:00
inet_common.h	bpf: Allow rewriting to ports under ip_unprivileged_port_start	2021-01-27 18:18:15 -08:00
inet_connection_sock.h	tcp: relookup sock for RST+ACK packets handled by obsolete req sock	2021-03-15 14:34:29 -07:00
inet_ecn.h	inet_ecn: Use csum16_add() helper for IP_ECN_set_* helpers	2020-12-14 18:38:58 -08:00
inet_frag.h	inet: frags: batch fqdir destroy works	2020-12-12 15:08:54 -08:00
inet_hashtables.h	tcp: fix race condition when creating child sockets from syncookies	2020-11-23 16:32:33 -08:00
inet_sock.h	inet: remove inet_sk_copy_descendant()	2020-08-26 07:33:19 -07:00
inet_timewait_sock.h	tcp: honor SO_PRIORITY in TIME_WAIT state	2019-09-27 12:05:02 +02:00
inetpeer.h	net: ipv4: use a dedicated counter for icmp_v4 redirect packets	2019-02-08 21:50:15 -08:00
ip.h	inet: constify inet_sdif() argument	2020-11-10 17:56:54 -08:00
ip6_checksum.h	tcp: remove indirect calls for icsk->icsk_af_ops->send_check	2020-06-20 17:47:53 -07:00
ip6_fib.h	IPv6: Add "offload failed" indication to routes	2021-02-08 16:47:03 -08:00
ip6_route.h	net: allow user to set metric on default route learned via Router Advertisement	2021-01-26 18:39:45 -08:00
ip6_tunnel.h	ip6_tunnel: allow not to count pkts on tstats by passing dev as NULL	2019-06-18 20:48:45 -04:00
ip_fib.h	IPv4: Add "offload failed" indication to routes	2021-02-08 16:47:03 -08:00
ip_tunnels.h	Merge https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-19 19:08:46 -08:00
ip_vs.h	netfilter: move handlers to net/ip_vs.h	2021-02-04 18:37:57 -08:00
ipcomp.h	…
ipconfig.h	…
ipv6.h	seg6: add support for IPv4 decapsulation in ipv6_srh_rcv()	2021-03-11 16:09:21 -08:00
ipv6_frag.h	ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module	2020-11-19 10:49:50 -08:00
ipv6_stubs.h	ipv6: add ipv6_dev_find to stubs	2021-03-30 13:29:39 -07:00
ipx.h	bonding/alb: properly access headers in bond_alb_xmit()	2020-02-05 14:28:09 +01:00
iw_handler.h	…
kcm.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
l3mdev.h	l3mdev: add infrastructure for table to VRF mapping	2020-06-20 17:22:22 -07:00
lag.h	…
lapb.h	net: lapb: Make "lapb_t1timer_running" able to detect an already running timer	2021-03-23 14:14:50 -07:00
lib80211.h	…
llc.h	llc: avoid blocking in llc_sap_close()	2018-09-13 09:04:58 -07:00
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	…
llc_conn.h	llc: fix sk_buff leak in llc_conn_service()	2019-10-08 13:23:05 -07:00
llc_if.h	…
llc_pdu.h	…
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	…
llc_sap.h	…
lwtunnel.h	net: add net available in build_state	2020-03-29 22:30:57 -07:00
mac80211.h	cfg80211: avoid holding the RTNL when calling the driver	2021-01-26 11:55:50 +01:00
mac802154.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174	2019-05-30 11:26:41 -07:00
macsec.h	net: macsec: add support for getting offloaded stats	2020-03-26 20:17:36 -07:00
mip6.h	net: mip6: Replace zero-length array with flexible-array member	2020-03-02 11:16:27 -08:00
mld.h	mld: add new workqueues for process mld events	2021-03-26 15:14:56 -07:00
mpls.h	net: Make mpls_entry_encode() available for generic users	2020-05-29 21:20:20 -07:00
mpls_iptunnel.h	net: mpls: Replace zero-length array with flexible-array member	2020-02-28 12:08:37 -08:00
mptcp.h	mptcp: add rm_list in mptcp_out_options	2021-03-12 17:47:45 -08:00
mrp.h	treewide: Use sizeof_field() macro	2019-12-09 10:36:44 -08:00
ncsi.h	…
ndisc.h	ipv6: ndisc: adjust ndisc_ifinfo_sysctl_change prototype	2020-08-24 06:40:07 -07:00
neighbour.h	net: Exempt multicast addresses from five-second neighbor lifetime	2020-11-13 14:24:39 -08:00
net_failover.h	…
net_namespace.h	net: initialize net->net_cookie at netns setup	2021-02-11 14:10:07 -08:00
net_ratelimit.h	…
netevent.h	…
netlabel.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13	2019-05-21 11:28:45 +02:00
netlink.h	treewide: rename nla_strlcpy to nla_strscpy.	2020-11-16 08:08:54 -08:00
netprio_cgroup.h	netprio: use css ID instead of cgroup ID	2019-11-12 08:18:03 -08:00
netrom.h	net: netrom: Fix error cleanup path of nr_proto_init	2019-04-11 13:59:49 -07:00
nexthop.h	nexthop: Rename artifacts related to legacy multipath nexthop groups	2021-03-28 17:53:39 -07:00
nl802154.h	…
nsh.h	…
p8022.h	…
page_pool.h	net: page_pool: Add bulk support for ptr_ring	2020-11-14 02:29:00 +01:00
pie.h	pie: realign comment	2020-03-04 13:25:55 -08:00
ping.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
pkt_cls.h	sch_htb: Hierarchical QoS hardware offload	2021-01-22 20:41:29 -08:00
pkt_sched.h	net: add a helper to avoid issues with HW TX timestamping and SO_TXTIME	2021-03-10 12:45:16 -08:00
pptp.h	…
protocol.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
psample.h	psample: Add additional metadata attributes	2021-03-14 15:00:43 -07:00
psnap.h	…
raw.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rawv6.h	…
red.h	sch_red: Fix a typo	2021-03-19 11:51:03 -07:00
regulatory.h	net/wireless: regulatory.h: drop duplicate word in comment	2020-07-31 09:24:23 +02:00
request_sock.h	tcp: bpf: Optionally store mac header in TCP_SAVE_SYN	2020-08-24 14:35:00 -07:00
rose.h	…
route.h	lsm,selinux: pass flowi_common instead of flowi to the LSM hooks	2020-11-23 18:36:21 -05:00
rpl.h	net: ipv6: Use struct_size() helper and kcalloc()	2020-06-23 20:27:09 -07:00
rsi_91x.h	…
rtnetlink.h	can: dev: Move device back to init netns on owning netns delete	2021-03-16 08:40:04 +01:00
rtnh.h	net: Rename net/nexthop.h net/rtnh.h	2019-04-22 21:47:25 -07:00
sch_generic.h	net/sched: act_police: add support for packet-per-second policing	2021-03-13 14:18:09 -08:00
scm.h	fs: Move __scm_install_fd() to __receive_fd()	2020-07-13 11:03:44 -07:00
secure_seq.h	…
seg6.h	seg6: fix seg6_validate_srh() to avoid slab-out-of-bounds	2020-06-04 15:39:32 -07:00
seg6_hmac.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
seg6_local.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
slhc_vj.h	…
smc.h	net/smc: introduce CHID callback for ISM devices	2020-09-28 15:19:03 -07:00
snmp.h	net/tls: add skeleton of MIB statistics	2019-10-05 16:29:00 -07:00
sock.h	net: correct sk_acceptq_is_full()	2021-03-12 12:27:14 -08:00
sock_reuseport.h	net: sock_reuseport: Replace zero-length array with flexible-array member	2020-02-29 21:52:19 -08:00
stp.h	…
strparser.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
switchdev.h	net: bridge: add helper to replay port and host-joined mdb entries	2021-03-23 14:49:05 -07:00
tcp.h	skmsg: Move sk_redir from TCP_SKB_CB to skb	2021-02-26 12:28:03 -08:00
tcp_states.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
timewait_sock.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
tipc.h	…
tls.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-11-27 18:25:27 -08:00
tls_toe.h	net/tls: rename tls_hw_* functions tls_toe_*	2019-10-04 14:07:07 -07:00
transp_v6.h	tcp: move ipv4_specific to tcp include file	2020-06-23 20:10:15 -07:00
tso.h	net: tso: cache transport header length	2020-06-18 20:46:23 -07:00
tun_proto.h	…
udp.h	udp: fixup csum for GSO receive slow path	2021-03-30 17:06:49 -07:00
udp_tunnel.h	udp: call udp_encap_enable for v6 sockets when enabling encap	2021-02-04 18:37:14 -08:00
udplite.h	…
vsock_addr.h	vsock: remove include/linux/vm_sockets.h file	2019-11-14 18:12:17 -08:00
vxlan.h	net: sched: only keep the available bits when setting vxlan md->gbp	2020-09-14 16:49:39 -07:00
wext.h	…
x25.h	net/x25: add new state X25_STATE_5	2019-12-09 10:28:43 -08:00
x25device.h	…
xdp.h	net, veth: Alloc skb in bulk for ndo_xdp_xmit	2021-02-04 01:00:07 +01:00
xdp_priv.h	page_pool: do not release pool until inflight == 0.	2019-11-16 12:39:10 -08:00
xdp_sock.h	bpf, xdp: Make bpf_redirect_map() a map operation	2021-03-10 01:06:34 +01:00
xdp_sock_drv.h	xsk: Introduce batched Tx descriptor interfaces	2020-11-17 22:07:40 +01:00
xfrm.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2020-10-05 18:40:01 -07:00
xsk_buff_pool.h	xsk: Fix race in SKB mode transmit with shared cq	2020-12-18 16:10:21 +01:00