From: thinker.li@gmail.com
To: bpf@vger.kernel.org, ast@kernel.org, martin.lau@linux.dev,
song@kernel.org, kernel-team@meta.com, andrii@kernel.org,
sdf@google.com, yonghong.song@linux.dev
Cc: sinquersw@gmail.com, kuifeng@meta.com,
Kui-Feng Lee <thinker.li@gmail.com>
Subject: [RFC bpf-next v4 2/6] libbpf: add sleepable sections for {get,set}sockopt()
Date: Fri, 18 Aug 2023 20:01:39 -0700 [thread overview]
Message-ID: <20230819030143.419729-3-thinker.li@gmail.com> (raw)
In-Reply-To: <20230819030143.419729-1-thinker.li@gmail.com>
From: Kui-Feng Lee <thinker.li@gmail.com>
Enable libbpf users to define sleepable programs attached on
{get,set}sockopt(). The sleepable programs should be defined with
SEC("cgroup/getsockopt.s") and SEC("cgroup/setsockopt.s") respectively.
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
---
tools/lib/bpf/libbpf.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b14a4376a86e..ddd6dc166e3e 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -8766,7 +8766,9 @@ static const struct bpf_sec_def section_defs[] = {
SEC_DEF("cgroup/getsockname6", CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETSOCKNAME, SEC_ATTACHABLE),
SEC_DEF("cgroup/sysctl", CGROUP_SYSCTL, BPF_CGROUP_SYSCTL, SEC_ATTACHABLE),
SEC_DEF("cgroup/getsockopt", CGROUP_SOCKOPT, BPF_CGROUP_GETSOCKOPT, SEC_ATTACHABLE),
+ SEC_DEF("cgroup/getsockopt.s", CGROUP_SOCKOPT, BPF_CGROUP_GETSOCKOPT, SEC_ATTACHABLE | SEC_SLEEPABLE),
SEC_DEF("cgroup/setsockopt", CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT, SEC_ATTACHABLE),
+ SEC_DEF("cgroup/setsockopt.s", CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT, SEC_ATTACHABLE | SEC_SLEEPABLE),
SEC_DEF("cgroup/dev", CGROUP_DEVICE, BPF_CGROUP_DEVICE, SEC_ATTACHABLE_OPT),
SEC_DEF("struct_ops+", STRUCT_OPS, 0, SEC_NONE),
SEC_DEF("struct_ops.s+", STRUCT_OPS, 0, SEC_SLEEPABLE),
--
2.34.1
next prev parent reply other threads:[~2023-08-19 3:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-19 3:01 [RFC bpf-next v4 0/6] Sleepable BPF programs on cgroup {get,set}sockopt thinker.li
2023-08-19 3:01 ` [RFC bpf-next v4 1/6] bpf: enable sleepable BPF programs attached to cgroup/{get,set}sockopt thinker.li
2023-08-19 3:01 ` thinker.li [this message]
2023-08-19 3:01 ` [RFC bpf-next v4 3/6] Add PTR_TO_AUX thinker.li
2023-08-19 3:01 ` [RFC bpf-next v4 4/6] bpf: Prevent BPF programs from access the buffer pointed by user_optval thinker.li
2023-08-19 3:01 ` [RFC bpf-next v4 5/6] bpf: Add a new dynptr type for CGRUP_SOCKOPT thinker.li
2023-08-19 3:01 ` [RFC bpf-next v4 6/6] selftests/bpf: Add test cases for sleepable BPF programs of the CGROUP_SOCKOPT type thinker.li
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