Jesper Dangaard Brouer 5f7d57280c bpf: Drop MTU check when doing TC-BPF redirect to ingress ...

The use-case for dropping the MTU check when TC-BPF does redirect to
ingress, is described by Eyal Birger in email[0]. The summary is the
ability to increase packet size (e.g. with IPv6 headers for NAT64) and
ingress redirect packet and let normal netstack fragment packet as needed.

[0] https://lore.kernel.org/netdev/CAHsH6Gug-hsLGHQ6N0wtixdOa85LDZ3HNRHVd0opR=19Qo4W4Q@mail.gmail.com/

V15:
 - missing static for function declaration

V9:
 - Make net_device "up" (IFF_UP) check explicit in skb_do_redirect

V4:
 - Keep net_device "up" (IFF_UP) check.
 - Adjustment to handle bpf_redirect_peer() helper

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/161287790971.790810.11785274340154740591.stgit@firesoul

2021-02-13 01:15:28 +01:00

..

bpf_sk_storage.c

bpf: Expose bpf_sk_storage_* to iterator programs

2020-12-04 22:32:40 +01:00

datagram.c

net: datagram: fix some kernel-doc markups

2020-11-17 14:15:03 -08:00

datagram.h

…

dev_addr_lists.c

…

dev_ioctl.c

…

dev.c

bpf: Drop MTU check when doing TC-BPF redirect to ingress

2021-02-13 01:15:28 +01:00

devlink.c

net: core: devlink: use right genl user_ptr when handling port param get/set

2021-01-19 11:45:41 -08:00

drop_monitor.c

…

dst_cache.c

…

dst.c

…

failover.c

…

fib_notifier.c

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fib_rules.c

treewide: rename nla_strlcpy to nla_strscpy.

2020-11-16 08:08:54 -08:00

filter.c

bpf: Drop MTU check when doing TC-BPF redirect to ingress

2021-02-13 01:15:28 +01:00

flow_dissector.c

net: flow_dissector: Parse PTP L2 packet header

2021-01-14 18:24:54 -08:00

flow_offload.c

net: flow_offload: Fix memory leak for indirect flow block

2020-12-09 16:08:33 -08:00

gen_estimator.c

net_sched: gen_estimator: support large ewma log

2021-01-15 18:11:06 -08:00

gen_stats.c

…

gro_cells.c

gro_cells: reduce number of synchronize_net() calls

2020-11-25 11:28:12 -08:00

hwbm.c

…

link_watch.c

…

lwt_bpf.c

lwt_bpf: Replace preempt_disable() with migrate_disable()

2020-12-07 11:53:40 -08:00

lwtunnel.c

…

Makefile

…

neighbour.c

neighbor: remove definition of DEBUG

2021-01-15 17:51:18 -08:00

net_namespace.c

Merge tag 'fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2020-12-14 16:40:27 -08:00

net-procfs.c

…

net-sysfs.c

net-sysfs: take the rtnl lock when accessing xps_rxqs_map and num_tc

2020-12-28 13:26:46 -08:00

net-sysfs.h

…

net-traces.c

…

netclassid_cgroup.c

net: Remove the err argument from sock_from_file

2020-12-04 22:32:40 +01:00

netevent.c

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netpoll.c

net: Have netpoll bring-up DSA management interface

2020-11-18 11:04:11 -08:00

netprio_cgroup.c

net: Remove the err argument from sock_from_file

2020-12-04 22:32:40 +01:00

page_pool.c

net: page_pool: Add bulk support for ptr_ring

2020-11-14 02:29:00 +01:00

pktgen.c

…

ptp_classifier.c

…

request_sock.c

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rtnetlink.c

net: make free_netdev() more lenient with unregistering devices

2021-01-08 19:27:41 -08:00

scm.c

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secure_seq.c

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skbuff.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2021-01-20 12:16:11 -08:00

skmsg.c

skmsg: Make sk_psock_destroy() static

2021-01-28 00:35:03 +01:00

sock_diag.c

…

sock_map.c

bpf: Replace fput with sockfd_put in sock map

2021-01-08 13:39:24 -08:00

sock_reuseport.c

udp: Prevent reuseport_select_sock from reading uninitialized socks

2021-01-08 19:15:40 -08:00

sock.c

net: Remove the err argument from sock_from_file

2020-12-04 22:32:40 +01:00

stream.c

…

sysctl_net_core.c

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timestamping.c

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tso.c

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utils.c

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xdp.c

net, veth: Alloc skb in bulk for ndo_xdp_xmit

2021-02-04 01:00:07 +01:00