Ilya Maximets a9888628cb net: dst_metadata: fix IP_DF bit not extracted from tunnel headers ... Both OVS and TC flower allow extracting and matching on the DF bit of the outer IP header via OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT in the OVS_KEY_ATTR_TUNNEL and TCA_FLOWER_KEY_FLAGS_TUNNEL_DONT_FRAGMENT in the TCA_FLOWER_KEY_ENC_FLAGS respectively. Flow dissector extracts this information as FLOW_DIS_F_TUNNEL_DONT_FRAGMENT from the tunnel info key. However, the IP_TUNNEL_DONT_FRAGMENT_BIT in the tunnel key is never actually set, because the tunneling code doesn't actually extract it from the IP header. OAM and CRIT_OPT are extracted by the tunnel implementation code, same code also sets the KEY flag, if present. UDP tunnel core takes care of setting the CSUM flag if the checksum is present in the UDP header, but the DONT_FRAGMENT is not handled at any layer. Fix that by checking the bit and setting the corresponding flag while populating the tunnel info in the IP layer where it belongs. Not using __assign_bit as we don't really need to clear the bit in a just initialized field. It also doesn't seem like using __assign_bit will make the code look better. Clearly, users didn't rely on this functionality for anything very important until now. The reason why this doesn't break OVS logic is that it only matches on what kernel previously parsed out and if kernel consistently reports this bit as zero, OVS will only match on it to be zero, which sort of works. But it is still a bug that the uAPI reports and allows matching on the field that is not actually checked in the packet. And this is causing misleading -df reporting in OVS datapath flows, while the tunnel traffic actually has the bit set in most cases. This may also cause issues if a hardware properly implements support for tunnel flag matching as it will disagree with the implementation in a software path of TC flower. Fixes: 7d5437c709 ("openvswitch: Add tunneling interface.") Fixes: 1d17568e74 ("net/sched: cls_flower: add support for matching tunnel control flags") Signed-off-by: Ilya Maximets <i.maximets@ovn.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250909165440.229890-2-i.maximets@ovn.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-09-14 14:28:12 -07:00
..
9p	…
bluetooth	Bluetooth: hci_sync: fix set_local_name race condition	2025-08-22 13:57:31 -04:00
caif	caif: Remove unused cfsrvl_getphyid	2024-10-08 15:33:49 -07:00
iucv	net: reformat kdoc return statements	2024-12-09 14:44:59 -08:00
libeth	libeth: xdp: access ->pp through netmem_desc instead of page	2025-07-23 17:46:56 -07:00
mana	net: mana: Handle Reset Request from MANA NIC	2025-07-01 19:17:53 -07:00
netfilter	netfilter: nf_tables: make nft_set_do_lookup available unconditionally	2025-09-10 20:30:37 +02:00
netns	netfilter: nf_tables: place base_seq in struct net	2025-09-10 20:30:37 +02:00
nfc	net: nfc: Propagate ISO14443 type A target ATS to userspace via netlink	2024-11-07 10:21:58 +01:00
page_pool	net: page_pool: allow enabling recycling late, fix false positive warning	2025-08-08 12:54:42 -07:00
phonet	phonet: Convert phonet_routes.lock to spinlock_t.	2024-10-24 16:03:40 +02:00
sctp	sctp: Replace sockaddr with sockaddr_inet in sctp_addr union	2025-07-25 15:29:58 -07:00
tc_act	net_sched: act_skbedit: use RCU in tcf_skbedit_dump()	2025-07-11 16:01:17 -07:00
6lowpan.h	…
Space.h	…
act_api.h	net_sched: act: annotate data-races in tcf_lastuse_update() and tcf_tm_dump()	2025-07-11 16:01:15 -07:00
addrconf.h	ipv6: Add __in6_dev_get_rtnl_net().	2025-01-20 12:16:04 -08:00
af_ieee802154.h	…
af_rxrpc.h	rxrpc: Remove deadcode	2025-04-24 17:03:45 -07:00
af_unix.h	af_unix: Introduce SO_INQ.	2025-07-08 18:05:25 -07:00
af_vsock.h	vsock: fix `vsock_proto` declaration	2025-07-07 16:55:54 -07:00
ah.h	…
aligned_data.h	udp: move udp_memory_allocated into net_aligned_data	2025-07-02 14:22:02 -07:00
amt.h	…
arp.h	…
atmclip.h	…
ax25.h	ax25: Remove broken autobind	2025-03-24 10:26:53 +00:00
ax88796.h	…
bareudp.h	…
bond_3ad.h	bonding: update LACP activity flag after setting lacp_active	2025-08-21 09:35:20 +02:00
bond_alb.h	bonding: Correct spelling in headers	2024-08-26 09:37:22 -07:00
bond_options.h	net: bonding: add broadcast_neighbor option for 802.3ad	2025-07-08 10:59:41 +02:00
bonding.h	net: bonding: add broadcast_neighbor option for 802.3ad	2025-07-08 10:59:41 +02:00
bpf_sk_storage.h	…
busy_poll.h	net: gro: decouple GRO from the NAPI layer	2025-02-27 14:03:14 +01:00
calipso.h	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
cfg80211-wext.h	…
cfg80211.h	wifi: cfg80211/mac80211: report link ID for unexpected frames	2025-07-21 19:40:59 +02:00
cfg802154.h	…
checksum.h	net: Fix checksum update for ILA adj-transport	2025-05-30 19:53:51 -07:00
cipso_ipv4.h	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
cls_cgroup.h	…
codel.h	…
codel_impl.h	…
codel_qdisc.h	…
compat.h	…
datalink.h	…
dcbevent.h	…
dcbnl.h	…
devlink.h	devlink: let driver opt out of automatic phys_port_name generation	2025-08-12 13:23:39 -07:00
dropreason-core.h	sched: Add enqueue/dequeue of dualpi2 qdisc	2025-07-23 17:52:07 -07:00
dropreason.h	wifi: mac80211: Drop cooked monitor support	2025-02-11 11:58:17 +01:00
dsa.h	net: dsa: tag_brcm: add support for legacy FCS tags	2025-06-17 17:52:01 -07:00
dsa_stubs.h	…
dscp.h	…
dsfield.h	…
dst.h	net: Add locking to protect skb->dev access in ip_output	2025-08-01 15:17:52 -07:00
dst_cache.h	net: Correct spelling in headers	2024-08-26 09:37:23 -07:00
dst_metadata.h	net: dst_metadata: fix IP_DF bit not extracted from tunnel headers	2025-09-14 14:28:12 -07:00
dst_ops.h	…
eee.h	net: simplify eeecfg_mac_can_tx_lpi	2024-11-13 18:49:50 -08:00
erspan.h	net: Correct spelling in headers	2024-08-26 09:37:23 -07:00
esp.h	…
espintcp.h	…
ethoc.h	…
failover.h	…
fib_notifier.h	net: do not acquire rtnl in fib_seq_sum()	2024-10-11 15:35:05 -07:00
fib_rules.h	net: fib_rules: Fix iif / oif matching on L3 master device	2025-04-15 17:54:56 -07:00
firewire.h	…
flow.h	ip: load balance tcp connections to single dst addr and port	2025-04-29 16:22:25 +02:00
flow_dissector.h	flow_dissector: cleanup FLOW_DISSECTOR_KEY_ENC_FLAGS	2024-07-15 09:14:39 -07:00
flow_offload.h	net: sched: propagate "skip_sw" flag to struct flow_cls_common_offload	2024-10-30 17:33:53 -07:00
fou.h	…
fq.h	…
fq_impl.h	…
garp.h	…
gen_stats.h	…
genetlink.h	net: reformat kdoc return statements	2024-12-09 14:44:59 -08:00
geneve.h	…
gre.h	…
gro.h	net: Create separate gro_flush_normal function	2025-07-24 18:34:55 -07:00
gro_cells.h	…
gso.h	…
gtp.h	…
gue.h	…
handshake.h	…
hotdata.h	net: introduce per netns packet chains	2025-03-24 13:58:22 -07:00
hwbm.h	net: Correct spelling in headers	2024-08-26 09:37:23 -07:00
icmp.h	…
ieee8021q.h	…
ieee80211_radiotap.h	wireless fixes for v6.12-rc5	2024-10-25 10:44:41 +01:00
ieee802154_netdev.h	…
if_inet6.h	…
ife.h	…
inet6_connection_sock.h	tcp/dccp: Remove inet_connection_sock_af_ops.addr2sockaddr().	2025-03-24 12:10:13 -07:00
inet6_hashtables.h	ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers	2025-07-02 14:32:30 -07:00
inet_common.h	…
inet_connection_sock.h	tcp/dccp: remove icsk->icsk_ack.timeout	2025-03-25 10:34:33 -07:00
inet_dscp.h	…
inet_ecn.h	…
inet_frag.h	inet: frags: change inet_frag_kill() to defer refcount updates	2025-03-18 13:18:36 +01:00
inet_hashtables.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
inet_sock.h	sctp: Prepare sctp_v4_get_dst() to dscp_t conversion.	2025-01-06 13:49:38 -08:00
inet_timewait_sock.h	tcp: Measure TIME-WAIT reuse delay with millisecond precision	2024-12-11 20:17:33 -08:00
inetpeer.h	inetpeer: remove create argument of inet_getpeer()	2024-12-17 19:37:00 -08:00
ioam6.h	…
ip.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
ip6_checksum.h	…
ip6_fib.h	ipv6: Defer fib6_purge_rt() in fib6_add_rt2node() to fib6_add().	2025-04-24 09:29:56 +02:00
ip6_route.h	ipv6: adopt dst_dev() helper	2025-07-02 14:32:30 -07:00
ip6_tunnel.h	ipv6: adopt skb_dst_dev() and skb_dst_dev_net[_rcu]() helpers	2025-07-02 14:32:30 -07:00
ip_fib.h	ipv4: prefer multipath nexthop that matches source address	2025-04-29 16:22:25 +02:00
ip_tunnels.h	net: ipv4: Add a flags argument to iptunnel_xmit(), udp_tunnel_xmit_skb()	2025-06-17 18:18:44 -07:00
ip_vs.h	ipvs: Fix estimator kthreads preferred affinity	2025-08-13 08:34:33 +02:00
ipcomp.h	xfrm: ipcomp: Use crypto_acomp interface	2025-03-21 17:36:49 +08:00
ipconfig.h	…
ipv6.h	ipv6: fix _DEVADD() and _DEVUPD() macros	2025-03-25 07:31:24 -07:00
ipv6_frag.h	inet: frags: change inet_frag_kill() to defer refcount updates	2025-03-18 13:18:36 +01:00
ipv6_stubs.h	ipv6: udp: constify 'struct net' parameter of socket lookups	2024-08-05 16:27:26 -07:00
iw_handler.h	Revert "wifi: cfg80211: unexport wireless_nlevent_flush()"	2024-10-09 08:53:01 +02:00
kcm.h	net: kcm: Fix race condition in kcm_unattach()	2025-08-13 18:18:33 -07:00
l3mdev.h	net: fib_rules: Fix iif / oif matching on L3 master device	2025-04-15 17:54:56 -07:00
lag.h	…
lapb.h	net: lapb: increase LAPB_HEADER_LEN	2024-12-06 17:43:08 -08:00
llc.h	…
llc_c_ac.h	…
llc_c_ev.h	…
llc_c_st.h	llc: Constify struct llc_conn_state_trans	2024-07-15 08:51:01 -07:00
llc_conn.h	…
llc_if.h	…
llc_pdu.h	net: Correct spelling in headers	2024-08-26 09:37:23 -07:00
llc_s_ac.h	…
llc_s_ev.h	…
llc_s_st.h	llc: Constify struct llc_sap_state_trans	2024-07-15 08:51:19 -07:00
llc_sap.h	…
lwtunnel.h	net: dst: annotate data-races around dst->output	2025-07-02 14:32:30 -07:00
mac80211.h	wifi: mac80211: don't require cipher and keylen in gtk rekey	2025-07-22 10:43:19 +02:00
mac802154.h	move asm/unaligned.h to linux/unaligned.h	2024-10-02 17:23:23 -04:00
macsec.h	net: macsec: Add endianness annotations in salt struct	2025-01-20 12:20:42 +00:00
mctp.h	net: mctp: Allow limiting binds to a peer address	2025-07-15 12:08:39 +02:00
mctpdevice.h	net: mctp: Expose transport binding identifier via IFLA attribute	2024-11-09 09:04:54 -08:00
mip6.h	…
mld.h	…
mpls.h	…
mpls_iptunnel.h	…
mptcp.h	mptcp: sched: remove mptcp_sched_data	2025-04-15 08:21:46 -07:00
mrp.h	…
ncsi.h	…
ndisc.h	net: replace ND_PRINTK with dynamic debug	2025-07-10 15:27:32 -07:00
neighbour.h	neighbour: Update pneigh_entry in pneigh_create().	2025-07-17 16:25:22 -07:00
neighbour_tables.h	neighbour: Create netdev->neighbour association	2024-11-09 13:22:57 -08:00
net_debug.h	Kbuild updates for v6.13	2024-11-30 13:41:50 -08:00
net_failover.h	…
net_namespace.h	net: Remove ->exit_batch_rtnl().	2025-04-14 17:08:45 -07:00
net_ratelimit.h	…
net_shaper.h	net-shapers: implement NL get operation	2024-10-10 08:30:22 -07:00
net_trackers.h	…
netdev_lock.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-05-22 09:42:41 -07:00
netdev_netlink.h	net: add granular lock for the netdev netlink socket	2025-03-12 13:32:35 -07:00
netdev_queues.h	queue_api: add subqueue variant netif_subqueue_sent	2025-06-10 15:27:18 -07:00
netdev_rx_queue.h	net: designate XSK pool pointers in queues as "ops protected"	2025-04-09 17:01:51 -07:00
netevent.h	…
netkit.h	…
netlabel.h	Networking changes for 6.13.	2024-11-21 08:28:08 -08:00
netlink.h	netlink: introduce type-checking attribute iteration for nlmsg	2025-07-02 15:39:04 -07:00
netmem.h	netmem, mlx4: access ->pp_ref_count through netmem_desc instead of page	2025-07-23 17:46:54 -07:00
netprio_cgroup.h	…
netrom.h	…
nexthop.h	ipv6: Protect nh->f6i_list with spinlock and flag.	2025-04-24 09:29:56 +02:00
nl802154.h	ieee802154: Correct spelling in nl802154.h	2024-08-30 22:30:55 +02:00
nsh.h	…
pfcp.h	net: pfcp: fix typo in message_priority field name	2025-06-13 18:17:08 -07:00
pie.h	…
ping.h	…
pkt_cls.h	net: sched: refine software bypass handling in tc_run	2025-01-20 09:21:27 +00:00
pkt_sched.h	net/sched: sch_qfq: Fix null-deref in agg_dequeue	2025-07-10 11:08:35 +02:00
pptp.h	…
proto_memory.h	…
protocol.h	…
psample.h	…
psnap.h	…
raw.h	…
rawv6.h	…
red.h	net: sched: Correct spelling in headers	2024-08-26 09:37:23 -07:00
regulatory.h	net: Correct spelling in headers	2024-08-26 09:37:23 -07:00
request_sock.h	tcp: remove inet_rtx_syn_ack()	2025-06-27 15:34:19 -07:00
rose.h	net: rose: convert 'use' field to refcount_t	2025-08-27 07:43:08 -07:00
route.h	ipv4: adopt dst_dev, skb_dst_dev and skb_dst_dev_net[_rcu]	2025-07-02 14:32:30 -07:00
rpl.h	…
rps.h	net: rfs: add sock_rps_delete_flow() helper	2025-05-16 16:03:48 -07:00
rsi_91x.h	…
rstreason.h	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
rtnetlink.h	rtnetlink: Remove "net" from newlink params	2025-02-21 15:28:03 -08:00
rtnh.h	…
sch_generic.h	net/sched: Fix backlog accounting in qdisc_dequeue_internal	2025-08-14 17:52:29 -07:00
scm.h	af_unix/scm: fix whitespace errors	2025-07-04 09:32:35 +02:00
secure_seq.h	net: Retire DCCP socket.	2025-04-11 18:58:10 -07:00
seg6.h	…
seg6_hmac.h	…
seg6_local.h	…
selftests.h	…
slhc_vj.h	…
smc.h	…
snmp.h	percpu: use TYPEOF_UNQUAL() in variable declarations	2025-03-16 22:05:53 -07:00
sock.h	net: lockless sock_i_ino()	2025-09-03 16:08:24 -07:00
sock_reuseport.h	net: core: annotate socks of struct sock_reuseport with __counted_by	2024-08-02 17:16:59 -07:00
stp.h	…
strparser.h	strparser: Remove unused __strp_unpause	2025-05-05 16:48:12 -07:00
switchdev.h	…
tc_wrapper.h	…
tcp.h	Kbuild updates for v6.17	2025-08-06 07:32:52 +03:00
tcp_ao.h	net/tcp: Add missing lockdep annotations for TCP-AO hlist traversals	2024-11-03 12:10:11 -08:00
tcp_states.h	…
tcx.h	bpf: Remove location field in tcx_link	2025-07-11 11:00:57 -07:00
timewait_sock.h	…
tipc.h	…
tls.h	tls: block decryption when a rekey is pending	2024-12-16 12:47:29 +00:00
tls_prot.h	…
tls_toe.h	…
transp_v6.h	…
tso.h	…
tun_proto.h	…
udp.h	net: drop UFO packets in udp_rcv_segment()	2025-08-01 15:14:51 -07:00
udp_tunnel.h	udp_tunnel: fix deadlock in udp_tunnel_nic_set_port_priv()	2025-06-24 16:31:36 -07:00
udplite.h	…
vsock_addr.h	…
vxlan.h	vxlan: Support MC routing in the underlay	2025-06-17 18:18:46 -07:00
wext.h	…
x25.h	net/x25: Remove unused x25_terminate_link()	2025-07-14 17:19:13 -07:00
x25device.h	…
xdp.h	xdp: create locked/unlocked instances of xdp redirect target setters	2025-04-22 19:57:56 -07:00
xdp_priv.h	…
xdp_sock.h	net: xsk: introduce XDP_MAX_TX_SKB_BUDGET setsockopt	2025-07-10 14:48:29 +02:00
xdp_sock_drv.h	xsk: Add launch time hardware offload support to XDP Tx metadata	2025-02-20 15:13:45 -08:00
xfrm.h	Revert "xfrm: destroy xfrm_state synchronously on net exit path"	2025-07-08 13:28:29 +02:00
xsk_buff_pool.h	xsk: Fix offset calculation in unaligned mode	2025-04-24 17:11:52 -07:00