From: Tyler Wear <quic_twear@quicinc.com>
To: netdev@vger.kernel.org, bpf@vger.kernel.org
Cc: kafai@fb.com, maze@google.com, yhs@fb.com,
Tyler Wear <quic_twear@quicinc.com>
Subject: [PATCH] Add skb_store_bytes() for BPF_PROG_TYPE_CGROUP_SKB
Date: Tue, 21 Dec 2021 18:27:37 -0800 [thread overview]
Message-ID: <20211222022737.7369-1-quic_twear@quicinc.com> (raw)
Need to modify the ds field to support upcoming
Wifi QoS Alliance spec. Instead of adding generic
function for just modifying the ds field, add
skb_store_bytes for BPF_PROG_TYPE_CGROUP_SKB. This
allows other fields in the network and transport header
to be modified in the future.
Signed-off-by: Tyler Wear <quic_twear@quicinc.com>
---
net/core/filter.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/core/filter.c b/net/core/filter.c
index 6102f093d59a..0c25aa2212a2 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -7289,6 +7289,8 @@ static const struct bpf_func_proto *
cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
{
switch (func_id) {
+ case BPF_FUNC_skb_store_bytes:
+ return &bpf_skb_store_bytes_proto;
case BPF_FUNC_get_local_storage:
return &bpf_get_local_storage_proto;
case BPF_FUNC_sk_fullsock:
--
2.17.1
next reply other threads:[~2021-12-22 2:29 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-22 2:27 Tyler Wear [this message]
2021-12-22 3:43 ` [PATCH] Add skb_store_bytes() for BPF_PROG_TYPE_CGROUP_SKB Yonghong Song
2021-12-22 22:49 ` Tyler Wear
2021-12-22 23:50 ` Martin KaFai Lau
2021-12-29 18:29 ` Tyler Wear
2021-12-29 21:05 ` Martin KaFai Lau
2022-01-05 0:27 ` Tyler Wear (QUIC)
2022-01-06 7:50 ` Yonghong Song
2022-01-06 17:18 ` Tyler Wear (QUIC)
2022-01-06 22:35 ` Yonghong Song
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