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kernel_samsung_a53x/include/net
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David Ahern 8e4923ae31 net: Add l3mdev index to flow struct and avoid oif reset for port devices 
[ Upstream commit 40867d74c374b235e14d839f3a77f26684feefe5 ]

The fundamental premise of VRF and l3mdev core code is binding a socket
to a device (l3mdev or netdev with an L3 domain) to indicate L3 scope.
Legacy code resets flowi_oif to the l3mdev losing any original port
device binding. Ben (among others) has demonstrated use cases where the
original port device binding is important and needs to be retained.
This patch handles that by adding a new entry to the common flow struct
that can indicate the l3mdev index for later rule and table matching
avoiding the need to reset flowi_oif.

In addition to allowing more use cases that require port device binds,
this patch brings a few datapath simplications:

1. l3mdev_fib_rule_match is only called when walking fib rules and
   always after l3mdev_update_flow. That allows an optimization to bail
   early for non-VRF type uses cases when flowi_l3mdev is not set. Also,
   only that index needs to be checked for the FIB table id.

2. l3mdev_update_flow can be called with flowi_oif set to a l3mdev
   (e.g., VRF) device. By resetting flowi_oif only for this case the
   FLOWI_FLAG_SKIP_NH_OIF flag is not longer needed and can be removed,
   removing several checks in the datapath. The flowi_iif path can be
   simplified to only be called if the it is not loopback (loopback can
   not be assigned to an L3 domain) and the l3mdev index is not already
   set.

3. Avoid another device lookup in the output path when the fib lookup
   returns a reject failure.

Note: 2 functional tests for local traffic with reject fib rules are
updated to reflect the new direct failure at FIB lookup time for ping
rather than the failure on packet path. The current code fails like this:

    HINT: Fails since address on vrf device is out of device scope
    COMMAND: ip netns exec ns-A ping -c1 -w1 -I eth1 172.16.3.1
    ping: Warning: source address might be selected on device other than: eth1
    PING 172.16.3.1 (172.16.3.1) from 172.16.3.1 eth1: 56(84) bytes of data.

    --- 172.16.3.1 ping statistics ---
    1 packets transmitted, 0 received, 100% packet loss, time 0ms

where the test now directly fails:

    HINT: Fails since address on vrf device is out of device scope
    COMMAND: ip netns exec ns-A ping -c1 -w1 -I eth1 172.16.3.1
    ping: connect: No route to host

Signed-off-by: David Ahern <dsahern@kernel.org>
Tested-by: Ben Greear <greearb@candelatech.com>
Link: https://lore.kernel.org/r/20220314204551.16369-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 05ef7055debc ("netfilter: fib: check correct rtable in vrf setups")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:52 +01:00
..
9p Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bluetooth Revert "Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE" 2024-11-23 23:21:00 +01:00
caif Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iucv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netfilter netfilter: nft_set_pipapo: walk over current view on netlink dump 2024-11-23 23:21:15 +01:00
netns Revert "xfrm: fix a data-race in xfrm_gen_index()" 2024-11-17 19:38:56 +01:00
nfc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
phonet Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sctp sctp: move hlist_node and hashent out of sctp_ep_common 2024-11-23 23:20:22 +01:00
tc_act Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
6lowpan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
act_api.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
addrconf.h ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr 2024-11-19 11:32:19 +01:00
af_ieee802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_rxrpc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_unix.h af_unix: Suppress false-positive lockdep splat for spin_lock() in __unix_gc(). 2024-11-19 11:32:38 +01:00
af_vsock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ah.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
arp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
atmclip.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax25.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ax88796.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bareudp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_3ad.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_alb.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bond_options.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bonding.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bpf_sk_storage.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
busy_poll.h net: busy-poll: use ktime_get_ns() instead of local_clock() 2024-11-23 23:20:55 +01:00
calipso.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cfg80211-wext.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cfg80211.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
cfg802154.h mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-11-19 09:22:33 +01:00
checksum.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cipso_ipv4.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cls_cgroup.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss2.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_nl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_prealloc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cnss_utils.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
codel_qdisc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
compat.h net/ipv4/ipv6: Replace one-element arraya with flexible-array members 2024-11-19 08:44:49 +01:00
datalink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dcbevent.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dcbnl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dropdump.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dsa.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dsfield.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_cache.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_metadata.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dst_ops.h net: fix __dst_negative_advice() race 2024-11-19 12:27:19 +01:00
erspan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
esp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
espintcp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ethoc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
failover.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_notifier.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fib_rules.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firewire.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flow.h net: Add l3mdev index to flow struct and avoid oif reset for port devices 2024-11-23 23:21:52 +01:00
flow_dissector.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
flow_offload.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fou.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fq.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fq_impl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
garp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gen_stats.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
genetlink.h drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group 2024-11-18 12:11:46 +01:00
geneve.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gre.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gro_cells.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gtp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gue.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwbm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
icmp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ieee80211_radiotap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ieee802154_netdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
if_inet6.h net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX 2024-11-18 12:11:48 +01:00
ife.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ila.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_connection_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet6_hashtables.h net: remove duplicate reuseport_lookup functions 2024-11-19 12:26:55 +01:00
inet_common.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_connection_sock.h tcp: properly terminate timers for kernel sockets 2024-11-19 09:22:44 +01:00
inet_ecn.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_frag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_hashtables.h net: remove duplicate reuseport_lookup functions 2024-11-19 12:26:55 +01:00
inet_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inet_timewait_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inetpeer.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_checksum.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_fib.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_route.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip6_tunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ip_fib.h ipv4/fib: send notify when delete source address routes 2024-11-08 11:26:17 +01:00
ip_tunnels.h geneve: Fix incorrect inner network header offset when innerprotoinherit is set 2024-11-23 23:21:19 +01:00
ip_vs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipcomp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipconfig.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6_frag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipv6_stubs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ipx.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iw_handler.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kcm.h kcm: Serialise kcm_sendmsg() for the same socket. 2024-11-23 23:20:48 +01:00
l3mdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lag.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lapb.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib80211.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_ac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_ev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_c_st.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_conn.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_if.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_pdu.h llc: Drop support for ETH_P_TR_802_2. 2024-11-18 12:13:00 +01:00
llc_s_ac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_s_ev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_s_st.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
llc_sap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lwtunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mac80211.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
mac802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
macsec.h net: macsec: indicate next pn update when offloading 2024-11-08 11:25:46 +01:00
mip6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mld.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mpls_iptunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mptcp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mrp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ncsi.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ndisc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
neighbour.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_failover.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_namespace.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net_ratelimit.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netevent.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlabel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netprio_cgroup.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netrom.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nexthop.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nl802154.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nsh.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
p8022.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
page_pool.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pie.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ping.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pkt_cls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pkt_sched.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pptp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
protocol.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psample.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
psnap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
raw.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rawv6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
red.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
regulatory.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
request_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rose.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
route.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rpl.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rsi_91x.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtnetlink.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rtnh.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sch_generic.h net/sched: accept TCA_STAB only for root qdisc 2024-11-23 23:21:51 +01:00
scm.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
secure_seq.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6_hmac.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
seg6_local.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
skb_tracer.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slhc_vj.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
snmp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sock.h net: fix __dst_negative_advice() race 2024-11-19 12:27:19 +01:00
sock_reuseport.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Space.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
strparser.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
switchdev.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tcp.h tcp: check skb is non-NULL in tcp_rto_delta_us() 2024-11-23 23:21:28 +01:00
tcp_states.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
TEST_MAPPING Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
timewait_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tipc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tls.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tls_toe.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
transp_v6.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tso.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tun_proto.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udp_tunnel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
udplite.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
virt_wifi.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vsock_addr.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vxlan.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wext.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
wimax.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x25.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
x25device.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp.h xdp: Allow registering memory model without rxq reference 2024-11-19 14:19:32 +01:00
xdp_priv.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp_sock.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xdp_sock_drv.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xfrm.h xfrm: Preserve vlan tags for transport mode software GRO 2024-11-19 11:32:45 +01:00
xsk_buff_pool.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00