diff options
| author | Florent Revest | 2020-12-04 12:36:06 +0100 |
|---|---|---|
| committer | Daniel Borkmann | 2020-12-04 22:32:40 +0100 |
| commit | a50a85e40c59cf27ca3b324a5aa4c7f35314f251 (patch) | |
| tree | c7c09440bdb35f9e00311d7782b3c8327cb53076 /net/core | |
| parent | 4f19cab76136e800a3f04d8c9aa4d8e770e3d3d8 (diff) | |
bpf: Expose bpf_sk_storage_* to iterator programs
Iterators are currently used to expose kernel information to userspace
over fast procfs-like files but iterators could also be used to
manipulate local storage. For example, the task_file iterator could be
used to initialize a socket local storage with associations between
processes and sockets or to selectively delete local storage values.
Signed-off-by: Florent Revest <revest@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: KP Singh <kpsingh@google.com>
Link: https://lore.kernel.org/bpf/20201204113609.1850150-3-revest@google.com
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/bpf_sk_storage.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/bpf_sk_storage.c b/net/core/bpf_sk_storage.c index a32037daa933..4edd033e899c 100644 --- a/net/core/bpf_sk_storage.c +++ b/net/core/bpf_sk_storage.c @@ -394,6 +394,7 @@ static bool bpf_sk_storage_tracing_allowed(const struct bpf_prog *prog) * use the bpf_sk_storage_(get|delete) helper. */ switch (prog->expected_attach_type) { + case BPF_TRACE_ITER: case BPF_TRACE_RAW_TP: /* bpf_sk_storage has no trace point */ return true; |