WSL2-Linux-Kernel/net/sched
Davide Caratti 42c0160d27 net/sched: act_police: more accurate MTU policing
commit 4ddc844eb8 upstream.

in current Linux, MTU policing does not take into account that packets at
the TC ingress have the L2 header pulled. Thus, the same TC police action
(with the same value of tcfp_mtu) behaves differently for ingress/egress.
In addition, the full GSO size is compared to tcfp_mtu: as a consequence,
the policer drops GSO packets even when individual segments have the L2 +
L3 + L4 + payload length below the configured valued of tcfp_mtu.

Improve the accuracy of MTU policing as follows:
 - account for mac_len for non-GSO packets at TC ingress.
 - compare MTU threshold with the segmented size for GSO packets.
Also, add a kselftest that verifies the correct behavior.

Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-14 18:36:28 +02:00
..
Kconfig net: sched: incorrect Kconfig dependencies on Netfilter modules 2020-12-09 15:49:29 -08:00
Makefile net/sched: sch_frag: add generic packet fragment support. 2020-11-27 14:36:02 -08:00
act_api.c net: sched: limit TC_ACT_REPEAT loops 2022-02-23 12:03:21 +01:00
act_bpf.c bpf: Refactor BPF_PROG_RUN into a function 2021-08-17 00:45:07 +02:00
act_connmark.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_csum.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_ct.c netfilter: conntrack: convert to refcount_t api 2022-04-27 14:39:01 +02:00
act_ctinfo.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_gact.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_gate.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_ife.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_ipt.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_meta_mark.c
act_meta_skbprio.c
act_meta_skbtcindex.c
act_mirred.c net: sched: act_mirred: drop dst for the direction from egress to ingress 2021-11-25 09:48:38 +01:00
act_mpls.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_nat.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_pedit.c net/sched: act_pedit: sanitize shift argument before usage 2022-05-25 09:57:30 +02:00
act_police.c net/sched: act_police: more accurate MTU policing 2022-06-14 18:36:28 +02:00
act_sample.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_simple.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_skbedit.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_skbmod.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_tunnel_key.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
act_vlan.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_api.c net/sched: fix initialization order when updating chain 0 head 2022-04-20 09:34:10 +02:00
cls_basic.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_bpf.c bpf: Refactor BPF_PROG_RUN into a function 2021-08-17 00:45:07 +02:00
cls_cgroup.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_flow.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_flower.c net/sched: flower: fix parsing of ethertype following VLAN header 2022-04-20 09:34:09 +02:00
cls_fw.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_matchall.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_route.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_rsvp.c
cls_rsvp.h net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_rsvp6.c
cls_tcindex.c net_sched: refactor TC action init API 2021-08-02 10:24:38 +01:00
cls_u32.c net/sched: cls_u32: fix possible leak in u32_init_knode() 2022-04-27 14:38:53 +02:00
em_canid.c
em_cmp.c net: sched: fix misspellings using misspell-fixer tool 2020-11-10 17:00:28 -08:00
em_ipset.c
em_ipt.c
em_meta.c
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: Fix spelling mistakes 2021-05-31 22:44:56 -07:00
sch_api.c net_sched: add __rcu annotation to netdev->qdisc 2022-02-23 12:03:12 +01:00
sch_atm.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
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 call cake_destroy() from cake_init() 2021-12-22 09:32:40 +01:00
sch_cbq.c net: sched: Fix qdisc_rate_table refcount leak when get tcf_block failed 2021-08-30 20:29:03 -07:00
sch_cbs.c net: don't include ethtool.h from netdevice.h 2020-11-23 17:27:04 -08:00
sch_choke.c net: sched: validate stab values 2021-03-10 15:47:52 -08:00
sch_codel.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_drr.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_dsmark.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_etf.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_ets.c net/sched: sch_ets: don't remove idle classes from the round-robin list 2021-12-22 09:32:41 +01:00
sch_fifo.c net_sched: fix NULL deref in fifo_set_limit() 2021-10-01 14:59:10 -07:00
sch_fq.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_fq_codel.c fq_codel: reject silly quantum parameters 2021-09-04 10:49:46 +01:00
sch_fq_pie.c net/sched: fq_pie: prevent dismantle issue 2021-12-14 10:57:10 +01:00
sch_frag.c net/sched: Extend qdisc control block with tc control block 2022-01-05 12:42:33 +01:00
sch_generic.c net_sched: add __rcu annotation to netdev->qdisc 2022-02-23 12:03:12 +01:00
sch_gred.c net: sched: Fix spelling mistakes 2021-05-31 22:44:56 -07:00
sch_hfsc.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_hhf.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_htb.c sch_htb: Fail on unsupported parameters when offload is requested 2022-02-01 17:27:13 +01:00
sch_ingress.c
sch_mq.c net: sched: update default qdisc visibility after Tx queue cnt changes 2021-11-18 19:16:10 +01:00
sch_mqprio.c net: sched: update default qdisc visibility after Tx queue cnt changes 2021-11-18 19:16:10 +01:00
sch_multiq.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_netem.c netem: fix zero division in tabledist 2020-10-29 11:45:47 -07:00
sch_pie.c net: sched: fix misspellings using misspell-fixer tool 2020-11-10 17:00:28 -08:00
sch_plug.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_prio.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_qfq.c sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc 2022-01-11 15:35:14 +01:00
sch_red.c net: sched: validate stab values 2021-03-10 15:47:52 -08:00
sch_sfb.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_sfq.c net/sched: store the last executed chain also for clsact egress 2021-07-29 22:17:37 +01:00
sch_skbprio.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_taprio.c net/sched: taprio: Check if socket flags are valid 2022-04-20 09:34:10 +02:00
sch_tbf.c Revert "net: sched: Pass root lock to Qdisc_ops.enqueue" 2020-07-16 16:48:34 -07:00
sch_teql.c net: sched: sch_teql: fix null-pointer dereference 2021-04-08 14:14:42 -07:00