From: Amery Hung <ameryhung@gmail.com>
To: netdev@vger.kernel.org
Cc: bpf@vger.kernel.org, daniel@iogearbox.net, andrii@kernel.org,
alexei.starovoitov@gmail.com, martin.lau@kernel.org,
kuba@kernel.org, edumazet@google.com, xiyou.wangcong@gmail.com,
jhs@mojatatu.com, sinquersw@gmail.com, toke@redhat.com,
jiri@resnulli.us, stfomichev@gmail.com,
ekarani.silvestre@ccc.ufcg.edu.br, yangpeihao@sjtu.edu.cn,
yepeilin.cs@gmail.com, ameryhung@gmail.com, kernel-team@meta.com
Subject: [PATCH bpf-next v5 08/13] bpf: net_sched: Allow writing to more Qdisc members
Date: Thu, 13 Mar 2025 12:03:02 -0700 [thread overview]
Message-ID: <20250313190309.2545711-9-ameryhung@gmail.com> (raw)
In-Reply-To: <20250313190309.2545711-1-ameryhung@gmail.com>
From: Amery Hung <amery.hung@bytedance.com>
Allow bpf qdisc to write to Qdisc->limit and Qdisc->q.qlen.
Signed-off-by: Amery Hung <amery.hung@bytedance.com>
---
net/sched/bpf_qdisc.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/net/sched/bpf_qdisc.c b/net/sched/bpf_qdisc.c
index 6ad3050275a4..e4e7a5879869 100644
--- a/net/sched/bpf_qdisc.c
+++ b/net/sched/bpf_qdisc.c
@@ -68,6 +68,12 @@ static int bpf_qdisc_qdisc_access(struct bpf_verifier_log *log,
size_t end;
switch (off) {
+ case offsetof(struct Qdisc, limit):
+ end = offsetofend(struct Qdisc, limit);
+ break;
+ case offsetof(struct Qdisc, q) + offsetof(struct qdisc_skb_head, qlen):
+ end = offsetof(struct Qdisc, q) + offsetofend(struct qdisc_skb_head, qlen);
+ break;
case offsetof(struct Qdisc, qstats) ... offsetofend(struct Qdisc, qstats) - 1:
end = offsetofend(struct Qdisc, qstats);
break;
--
2.47.1
next prev parent reply other threads:[~2025-03-13 19:03 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-13 19:02 [PATCH bpf-next v5 00/13] bpf qdisc Amery Hung
2025-03-13 19:02 ` [PATCH bpf-next v5 01/13] bpf: Prepare to reuse get_ctx_arg_idx Amery Hung
2025-03-13 19:02 ` [PATCH bpf-next v5 02/13] bpf: Generalize finding member offset of struct_ops prog Amery Hung
2025-03-13 19:02 ` [PATCH bpf-next v5 03/13] bpf: net_sched: Support implementation of Qdisc_ops in bpf Amery Hung
2025-03-13 19:02 ` [PATCH bpf-next v5 04/13] bpf: net_sched: Add basic bpf qdisc kfuncs Amery Hung
2025-03-14 20:14 ` Alexei Starovoitov
2025-03-17 19:44 ` Amery Hung
2025-03-13 19:02 ` [PATCH bpf-next v5 05/13] bpf: net_sched: Add a qdisc watchdog timer Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 06/13] bpf: net_sched: Support updating bstats Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 07/13] bpf: net_sched: Support updating qstats Amery Hung
2025-03-14 20:24 ` Alexei Starovoitov
2025-03-16 13:56 ` Amery Hung
2025-03-13 19:03 ` Amery Hung [this message]
2025-03-13 19:03 ` [PATCH bpf-next v5 09/13] bpf: net_sched: Disable attaching bpf qdisc to non root Amery Hung
2025-03-14 20:31 ` Alexei Starovoitov
2025-03-16 13:58 ` Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 10/13] libbpf: Support creating and destroying qdisc Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 11/13] selftests/bpf: Add a basic fifo qdisc test Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 12/13] selftests/bpf: Add a bpf fq qdisc to selftest Amery Hung
2025-03-14 20:35 ` Alexei Starovoitov
2025-03-17 1:25 ` Amery Hung
2025-03-13 19:03 ` [PATCH bpf-next v5 13/13] selftests/bpf: Test attaching bpf qdisc to mq and non root Amery Hung
2025-03-13 19:52 ` [PATCH bpf-next v5 00/13] bpf qdisc Toke Høiland-Jørgensen
2025-03-14 1:43 ` Amery Hung
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