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| author | Pengcheng Yang <yangpc@wangsu.com> | 2022-11-29 13:40:39 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-12-01 03:07:32 +0300 |
| commit | a351d6087bf7d3d8440d58d3bf244ec64b89394a (patch) | |
| tree | b701f761fd3d6e2bcd554587a06343e0817dd05c /mm | |
| parent | 7a9841ca025275b5b0edfb0b618934abb6ceec15 (diff) | |
| download | linux-a351d6087bf7d3d8440d58d3bf244ec64b89394a.tar.xz | |
bpf, sockmap: Fix missing BPF_F_INGRESS flag when using apply_bytes
When redirecting, we use sk_msg_to_ingress() to get the BPF_F_INGRESS
flag from the msg->flags. If apply_bytes is used and it is larger than
the current data being processed, sk_psock_msg_verdict() will not be
called when sendmsg() is called again. At this time, the msg->flags is 0,
and we lost the BPF_F_INGRESS flag.
So we need to save the BPF_F_INGRESS flag in sk_psock and use it when
redirection.
Fixes: 8934ce2fd081 ("bpf: sockmap redirect ingress support")
Signed-off-by: Pengcheng Yang <yangpc@wangsu.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/1669718441-2654-3-git-send-email-yangpc@wangsu.com
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions