[PATCH bpf-next v11 08/12] libbpf: add fsession support
From: Menglong Dong <hidden>
Date: 2026-01-23 07:36:51
Also in:
bpf, lkml
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [library] (libbpf), the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Add BPF_TRACE_FSESSION to libbpf. Signed-off-by: Menglong Dong <redacted> --- v10: - split the modification to bpftool to a separate patch v5: - remove the handling of BPF_TRACE_SESSION in legacy fallback path for BPF_RAW_TRACEPOINT_OPEN - use fsession terminology consistently --- tools/lib/bpf/bpf.c | 1 + tools/lib/bpf/libbpf.c | 3 +++ 2 files changed, 4 insertions(+)
diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c
index 21b57a629916..5846de364209 100644
--- a/tools/lib/bpf/bpf.c
+++ b/tools/lib/bpf/bpf.c@@ -794,6 +794,7 @@ int bpf_link_create(int prog_fd, int target_fd, case BPF_TRACE_FENTRY: case BPF_TRACE_FEXIT: case BPF_MODIFY_RETURN: + case BPF_TRACE_FSESSION: case BPF_LSM_MAC: attr.link_create.tracing.cookie = OPTS_GET(opts, tracing.cookie, 0); if (!OPTS_ZEROED(opts, tracing))
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index bbcfd72b07d5..0c8bf0b5cce4 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c@@ -115,6 +115,7 @@ static const char * const attach_type_name[] = { [BPF_TRACE_FENTRY] = "trace_fentry", [BPF_TRACE_FEXIT] = "trace_fexit", [BPF_MODIFY_RETURN] = "modify_return", + [BPF_TRACE_FSESSION] = "trace_fsession", [BPF_LSM_MAC] = "lsm_mac", [BPF_LSM_CGROUP] = "lsm_cgroup", [BPF_SK_LOOKUP] = "sk_lookup",
@@ -9859,6 +9860,8 @@ static const struct bpf_sec_def section_defs[] = { SEC_DEF("fentry.s+", TRACING, BPF_TRACE_FENTRY, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace), SEC_DEF("fmod_ret.s+", TRACING, BPF_MODIFY_RETURN, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace), SEC_DEF("fexit.s+", TRACING, BPF_TRACE_FEXIT, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace), + SEC_DEF("fsession+", TRACING, BPF_TRACE_FSESSION, SEC_ATTACH_BTF, attach_trace), + SEC_DEF("fsession.s+", TRACING, BPF_TRACE_FSESSION, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_trace), SEC_DEF("freplace+", EXT, 0, SEC_ATTACH_BTF, attach_trace), SEC_DEF("lsm+", LSM, BPF_LSM_MAC, SEC_ATTACH_BTF, attach_lsm), SEC_DEF("lsm.s+", LSM, BPF_LSM_MAC, SEC_ATTACH_BTF | SEC_SLEEPABLE, attach_lsm),
--
2.52.0