kernel_optimize_test/include/net
Vadim Fedorenko 4476568069 net: lwtunnel: handle MTU calculation in forwading
[ Upstream commit fade56410c22cacafb1be9f911a0afd3701d8366 ]

Commit 14972cbd34 ("net: lwtunnel: Handle fragmentation") moved
fragmentation logic away from lwtunnel by carry encap headroom and
use it in output MTU calculation. But the forwarding part was not
covered and created difference in MTU for output and forwarding and
further to silent drops on ipv4 forwarding path. Fix it by taking
into account lwtunnel encap headroom.

The same commit also introduced difference in how to treat RTAX_MTU
in IPv4 and IPv6 where latter explicitly removes lwtunnel encap
headroom from route MTU. Make IPv4 version do the same.

Fixes: 14972cbd34 ("net: lwtunnel: Handle fragmentation")
Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Vadim Fedorenko <vfedorenko@novek.ru>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-14 16:56:32 +02:00
..
9p net: 9p: drop duplicate word in comment 2020-07-15 20:34:11 -07:00
bluetooth Bluetooth: Fix Set Extended (Scan Response) Data 2021-07-14 16:56:30 +02:00
caif net: caif: add proper error handling 2021-06-10 13:39:24 +02:00
iucv net/af_iucv: clean up function prototypes 2020-05-19 12:50:14 -07:00
netfilter netfilter: flowtable: Remove redundant hw refresh bit 2021-06-03 09:00:37 +02:00
netns net: xfrm: Localize sequence counter per network namespace 2021-04-14 08:42:05 +02:00
nfc NFC: nci: fix memory leak in nci_allocate_device 2021-05-28 13:17:43 +02:00
phonet treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336 2019-06-05 17:37:07 +02:00
sctp net: sctp: Fix IPv6 ancestor_size calc in sctp_copy_descendant 2020-09-20 14:15:12 -07:00
tc_act net/sched: act_vlan: Fix modify to allow 0 2021-07-14 16:56:19 +02:00
6lowpan.h 6lowpan: Replace zero-length array with flexible-array member 2020-02-28 14:51:30 +01:00
act_api.h net: sched: fix err handler in tcf_action_init() 2021-04-14 08:42:05 +02:00
addrconf.h net: bridge: mcast: fix broken length + header check for MRDv6 Adv. 2021-05-14 09:50:44 +02:00
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
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 bonding: fix feature flag setting at init time 2020-12-08 11:26:08 -08:00
bpf_sk_storage.h bpf: Change bpf_sk_storage_*() to accept ARG_PTR_TO_BTF_ID_SOCK_COMMON 2020-09-25 13:58:01 -07:00
busy_poll.h net: Avoid overwriting valid skb->napi_id 2020-06-20 17:30:59 -07:00
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 mac80211: properly handle A-MSDUs that start with an RFC 1042 header 2021-06-03 09:00:29 +02:00
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_impl.h
codel_qdisc.h
codel.h
compat.h net: simplify cBPF setsockopt compat handling 2020-07-19 18:16:40 -07:00
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: Add enable_remote_dev_reset generic parameter 2020-10-09 12:06:53 -07:00
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
dn.h
dsa.h net: dsa: propagate switchdev vlan_filtering prepare phase to drivers 2020-10-05 05:56:48 -07:00
dsfield.h ipv6: Annotate bitwise IPv6 dsfield pointer cast 2019-12-16 16:09:44 -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
dst.h net: Consolidate common blackhole dst ops 2021-03-30 14:32:05 +02:00
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_dissector.h net/flow_dissector: add packet hash dissection 2020-07-24 15:23:31 -07:00
flow_offload.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
flow.h ipv4: Initialize flowi4_multipath_hash in data path 2020-09-14 14:54:56 -07:00
fou.h
fq_impl.h net/fq_impl: use skb_get_hash instead of skb_get_hash_perturb 2020-07-31 09:24:24 +02:00
fq.h net/fq_impl: use skb_get_hash instead of skb_get_hash_perturb 2020-07-31 09:24:24 +02:00
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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-10-05 18:40:01 -07:00
geneve.h
gre.h
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 2021-03-04 11:38:46 +01:00
ieee80211_radiotap.h mac80211: add radiotap flag to prevent sequence number overwrite 2020-07-31 09:27:00 +02:00
ieee802154_netdev.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
if_inet6.h ipv6: Replace zero-length array with flexible-array 2020-05-11 13:18:54 -07:00
ife.h
ila.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
inet_common.h bpf: Allow any port in bpf_bind helper 2020-05-09 00:48:20 +02:00
inet_connection_sock.h tcp: relookup sock for RST+ACK packets handled by obsolete req sock 2021-03-30 14:31:59 +02:00
inet_ecn.h inet_ecn: Fix endianness of checksum update when setting ECT(1) 2020-12-01 17:16:54 -08:00
inet_frag.h inet: frags: re-introduce skb coalescing for local delivery 2019-08-08 15:55:10 -07:00
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
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
inetpeer.h
ip_fib.h ipv4: nexthop version of fib_info_nh_uses_dev 2020-05-26 16:06:07 -07:00
ip_tunnels.h ip_tunnels: Set tunnel option flag when tunnel metadata is present 2020-11-13 16:58:10 -08:00
ip_vs.h ipvs: remove dependency on ip6_tables 2020-08-31 23:06:51 +02:00
ip.h net: lwtunnel: handle MTU calculation in forwading 2021-07-14 16:56:32 +02:00
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 net: ip6_fib.h: drop duplicate word in comment 2020-07-15 20:34:11 -07:00
ip6_route.h net: lwtunnel: handle MTU calculation in forwading 2021-07-14 16:56:32 +02:00
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
ipcomp.h
ipconfig.h
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_fragment hook in ipv6_stub 2020-08-31 12:26:39 -07:00
ipv6.h ipv6: Remove dependency of ipv6_frag_thdr_truncated on ipv6 module 2020-11-19 10:49:50 -08:00
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
lib80211.h
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
llc.h
lwtunnel.h net: add net available in build_state 2020-03-29 22:30:57 -07:00
mac80211.h mac80211: Fix NULL ptr deref for injected rate info 2021-06-23 14:42:52 +02:00
mac802154.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
macsec.h net: macsec: fix the length used to copy the key for offloading 2021-07-14 16:56:28 +02:00
mip6.h net: mip6: Replace zero-length array with flexible-array member 2020-03-02 11:16:27 -08:00
mld.h net: ipv6: mld: Replace zero-length array with flexible-array member 2020-02-29 21:52:20 -08:00
mpls_iptunnel.h net: mpls: Replace zero-length array with flexible-array member 2020-02-28 12:08:37 -08:00
mpls.h net: Make mpls_entry_encode() available for generic users 2020-05-29 21:20:20 -07:00
mptcp.h net: tcp: drop unused function argument from mptcp_incoming_options 2020-09-24 20:17:01 -07:00
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: make get_net_ns return error if NET_NS is disabled 2021-06-23 14:42:44 +02:00
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 netlink: export policy in extended ACK 2020-10-09 20:22:32 -07:00
netprio_cgroup.h netprio: use css ID instead of cgroup ID 2019-11-12 08:18:03 -08:00
netrom.h
nexthop.h ipv6: fix suspecious RCU usage warning 2021-03-30 14:31:57 +02:00
nl802154.h
nsh.h
p8022.h
page_pool.h mm: fix struct page layout on 32-bit systems 2021-05-19 10:13:17 +02:00
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 net: zero-initialize tc skb extension on allocation 2021-06-03 09:00:51 +02:00
pkt_sched.h net: sched: fix tx action rescheduling issue during deactivation 2021-06-03 09:00:47 +02:00
pptp.h
protocol.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
psample.h net: sched: take reference to psample group in flow_action infra 2019-09-16 09:18:03 +02:00
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 off-by-one checks in red_check_params() 2021-04-14 08:42:07 +02:00
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 Remove DST_HOST 2020-03-23 21:57:44 -07:00
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 2021-03-30 14:32:08 +02:00
rtnh.h
sch_generic.h net: sched: add barrier to ensure correct ordering for lockless qdisc 2021-07-14 16:56:24 +02:00
scm.h fs: Move __scm_install_fd() to __receive_fd() 2020-07-13 11:03:44 -07:00
secure_seq.h
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
seg6.h seg6: fix seg6_validate_srh() to avoid slab-out-of-bounds 2020-06-04 15:39:32 -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_reuseport.h net: sock_reuseport: Replace zero-length array with flexible-array member 2020-02-29 21:52:19 -08:00
sock.h inet: annotate date races around sk->sk_txhash 2021-06-30 08:47:21 -04:00
Space.h
stp.h
strparser.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
switchdev.h switchdev: mrp: Remove SWITCHDEV_ATTR_ID_MRP_PORT_STAT 2021-02-17 11:02:29 +01:00
tcp_states.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tcp.h tcp: fix SO_RCVLOWAT related hangs under mem pressure 2021-03-04 11:37:33 +01:00
timewait_sock.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
tipc.h
tls_toe.h net/tls: rename tls_hw_* functions tls_toe_* 2019-10-04 14:07:07 -07:00
tls.h net/tls: Fix use-after-free after the TLS device goes down and up 2021-06-10 13:39:18 +02:00
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_tunnel.h udp_tunnel: add the ability to share port tables 2020-09-28 12:50:12 -07:00
udp.h udp: ipv4: manipulate network header of NATed UDP GRO fraglist 2021-02-10 09:29:23 +01:00
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
wimax.h net: wimax: fix duplicate words in comments 2020-07-15 20:34:02 -07:00
x25.h net/x25: add new state X25_STATE_5 2019-12-09 10:28:43 -08:00
x25device.h
xdp_priv.h page_pool: do not release pool until inflight == 0. 2019-11-16 12:39:10 -08:00
xdp_sock_drv.h xsk: i40e: ice: ixgbe: mlx5: Test for dma_need_sync earlier for better performance 2020-08-31 21:15:04 +02:00
xdp_sock.h xsk: Fix race in SKB mode transmit with shared cq 2021-01-17 14:17:05 +01:00
xdp.h xdp: Remove the xdp_attachment_flags_ok() callback 2020-12-09 16:27:42 +01:00
xfrm.h xfrm: xfrm_state_mtu should return at least 1280 for ipv6 2021-07-14 16:56:14 +02:00
xsk_buff_pool.h xsk: Fix missing validation for skb and unaligned mode 2021-07-14 16:56:23 +02:00