Ido Schimmel 1a432018c0 net/sched: flower: Allow matching on layer 2 miss ... Add the 'TCA_FLOWER_L2_MISS' netlink attribute that allows user space to match on packets that encountered a layer 2 miss. The miss indication is set as metadata in the tc skb extension by the bridge driver upon FDB or MDB lookup miss and dissected by the flow dissector to the 'FLOW_DISSECTOR_KEY_META' key. The use of this skb extension is guarded by the 'tc_skb_ext_tc' static key. As such, enable / disable this key when filters that match on layer 2 miss are added / deleted. Tested: # cat tc_skb_ext_tc.py #!/usr/bin/env -S drgn -s vmlinux refcount = prog["tc_skb_ext_tc"].key.enabled.counter.value_() print(f"tc_skb_ext_tc reference count is {refcount}") # ./tc_skb_ext_tc.py tc_skb_ext_tc reference count is 0 # tc filter add dev swp1 egress proto all handle 101 pref 1 flower src_mac 00:11:22:33:44:55 action drop # tc filter add dev swp1 egress proto all handle 102 pref 2 flower src_mac 00:11:22:33:44:55 l2_miss true action drop # tc filter add dev swp1 egress proto all handle 103 pref 3 flower src_mac 00:11:22:33:44:55 l2_miss false action drop # ./tc_skb_ext_tc.py tc_skb_ext_tc reference count is 2 # tc filter replace dev swp1 egress proto all handle 102 pref 2 flower src_mac 00:01:02:03:04:05 l2_miss false action drop # ./tc_skb_ext_tc.py tc_skb_ext_tc reference count is 2 # tc filter del dev swp1 egress proto all handle 103 pref 3 flower # tc filter del dev swp1 egress proto all handle 102 pref 2 flower # tc filter del dev swp1 egress proto all handle 101 pref 1 flower # ./tc_skb_ext_tc.py tc_skb_ext_tc reference count is 0 Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2023-05-30 23:37:00 -07:00
..
act_api.c	net/sched: act_api: use the correct TCA_ACT attributes in dump	2023-03-23 08:39:08 +00:00
act_bpf.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_connmark.c	net/sched: act_connmark: handle errno on tcf_idr_check_alloc	2023-03-01 08:19:09 +00:00
act_csum.c	net: skbuff: hide csum_not_inet when CONFIG_IP_SCTP not set	2023-04-19 13:04:30 +01:00
act_ct.c	net: extract nf_ct_handle_fragments to nf_conntrack_ovs	2023-02-10 16:23:03 -08:00
act_ctinfo.c	net/sched: act_ctinfo: use percpu stats	2023-02-13 20:09:01 -08:00
act_gact.c	Networking changes for 6.2.	2022-12-13 15:47:48 -08:00
act_gate.c	net/sched: act_gate: use percpu stats	2023-02-16 10:39:28 +01:00
act_ife.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_ipt.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_meta_mark.c
act_meta_skbprio.c
act_meta_skbtcindex.c
act_mirred.c	net/sched: act_mirred: Add carrier check	2023-05-01 07:26:10 +01:00
act_mpls.c	net/sched: remove two skb_mac_header() uses	2023-03-22 22:43:23 -07:00
act_nat.c	net/sched: act_nat: transition to percpu stats and rcu	2023-02-16 10:39:28 +01:00
act_pedit.c	net/sched: act_pedit: free pedit keys on bail from offset check	2023-04-27 11:43:29 +02:00
act_police.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_sample.c	net/sched: act_sample: fix action bind logic	2023-02-26 18:27:45 +00:00
act_simple.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_skbedit.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_skbmod.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
act_tunnel_key.c	net/sched: act_tunnel_key: add support for "don't fragment"	2023-03-30 23:24:24 -07:00
act_vlan.c	net/sched: avoid indirect act functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_api.c	net/sched: cls_api: remove block_cb from driver_list before freeing	2023-04-28 09:44:19 +01:00
cls_basic.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_bpf.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_cgroup.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_flow.c	treewide: Convert del_timer*() to timer_shutdown*()	2022-12-25 13:38:09 -08:00
cls_flower.c	net/sched: flower: Allow matching on layer 2 miss	2023-05-30 23:37:00 -07:00
cls_fw.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_matchall.c	net/sched: support per action hw stats	2023-02-14 11:00:01 +01:00
cls_route.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
cls_u32.c	net/sched: avoid indirect classify functions on retpoline kernels	2022-12-09 09:18:07 +00:00
em_canid.c	net: sched: kerneldoc fixes	2020-07-13 17:20:40 -07:00
em_cmp.c	net: sched: fix misspellings using misspell-fixer tool	2020-11-10 17:00:28 -08:00
em_ipset.c	sched: consistently handle layer3 header accesses in the presence of VLANs	2020-07-03 14:34:53 -07:00
em_ipt.c	sched: consistently handle layer3 header accesses in the presence of VLANs	2020-07-03 14:34:53 -07:00
em_meta.c	fix typos in net/sched/* files	2023-03-24 09:05:03 +00:00
em_nbyte.c	net: sched: Return the correct errno code	2021-02-06 11:15:28 -08:00
em_text.c
em_u32.c
ematch.c	net_sched: reject TCF_EM_SIMPLE case for complex ematch module	2022-12-19 09:43:18 +00:00
Kconfig	net/sched: Retire rsvp classifier	2023-02-16 09:27:07 +01:00
Makefile	net/sched: Retire rsvp classifier	2023-02-16 09:27:07 +01:00
sch_api.c	net: sched: remove qdisc_watchdog->last_expires	2023-03-09 23:24:14 -08:00
sch_blackhole.c	Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"	2020-07-16 16:48:34 -07:00
sch_cake.c	sch_cake: do not use skb_mac_header() in cake_overhead()	2023-03-22 22:43:23 -07:00
sch_cbs.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_choke.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
sch_codel.c	net: sched: remove redundant NULL check in change hook function	2022-09-01 08:06:45 +02:00
sch_drr.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_etf.c	net: sched: etf: remove true check in etf_enable_offload()	2022-09-01 20:08:32 -07:00
sch_ets.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_fifo.c	net_sched: fix NULL deref in fifo_set_limit()	2021-10-01 14:59:10 -07:00
sch_fq_codel.c	Revert "net: sched: fq_codel: remove redundant resource cleanup in fq_codel_init()"	2022-10-19 13:47:09 +01:00
sch_fq_pie.c	net: sched: remove redundant NULL check in change hook function	2022-09-01 08:06:45 +02:00
sch_fq.c	net/sched: sch_fq: fix integer overflow of "credit"	2023-04-21 20:24:29 -07:00
sch_frag.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2021-12-31 14:35:40 +00:00
sch_generic.c	net: sched: Print msecs when transmit queue time out	2023-04-23 14:18:05 +01:00
sch_gred.c	net: sched: gred: prevent races when adding offloads to stats	2023-01-18 20:28:25 -08:00
sch_hfsc.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_hhf.c	net: sched: remove redundant NULL check in change hook function	2022-09-01 08:06:45 +02:00
sch_htb.c	sch_htb: Allow HTB priority parameter in offload mode	2023-05-15 09:31:07 +01:00
sch_ingress.c	net: sched: Pass ingress block to tcf_classify_ingress	2020-02-19 17:49:48 -08:00
sch_mq.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_mqprio_lib.c	net/sched: mqprio: allow per-TC user input of FP adminStatus	2023-04-13 22:22:10 -07:00
sch_mqprio_lib.h	net/sched: mqprio: allow per-TC user input of FP adminStatus	2023-04-13 22:22:10 -07:00
sch_mqprio.c	net/sched: mqprio: allow per-TC user input of FP adminStatus	2023-04-13 22:22:10 -07:00
sch_multiq.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_netem.c	treewide: use get_random_u32_below() instead of deprecated function	2022-11-18 02:15:15 +01:00
sch_pie.c	fix typos in net/sched/* files	2023-03-24 09:05:03 +00:00
sch_plug.c	net: sched: remove redundant NULL check in change hook function	2022-09-01 08:06:45 +02:00
sch_prio.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_qfq.c	net/sched: sch_qfq: refactor parsing of netlink parameters	2023-04-23 18:47:09 +01:00
sch_red.c	net: sched: Fix use after free in red_enqueue()	2022-10-31 11:55:39 +00:00
sch_sfb.c	Networking fixes for 6.1-rc2, including fixes from netfilter	2022-10-20 17:24:59 -07:00
sch_sfq.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_skbprio.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_taprio.c	net/sched: taprio: allow per-TC user input of FP adminStatus	2023-04-13 22:22:10 -07:00
sch_tbf.c	net/sched: use tc_qdisc_stats_dump() in qdisc	2022-09-22 17:34:10 -07:00
sch_teql.c	net: sched: delete duplicate cleanup of backlog and qlen	2022-08-25 15:10:17 +02:00