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| author | Stanislav Fomichev <sdf@google.com> | 2019-04-25 14:37:23 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-04-25 23:49:06 +0200 |
| commit | 118c8e9ae629d35fa9b3d27a7b9d59298b1b4183 (patch) | |
| tree | 7ac43c744fec6cdd282557b4c56d30141dba3161 /kernel/bpf | |
| parent | ead442a0f9aaecb4df3eb4055d1e2568b4fc0ae6 (diff) | |
| download | linux-118c8e9ae629d35fa9b3d27a7b9d59298b1b4183.tar.gz linux-118c8e9ae629d35fa9b3d27a7b9d59298b1b4183.tar.bz2 linux-118c8e9ae629d35fa9b3d27a7b9d59298b1b4183.zip | |
bpf: support BPF_PROG_QUERY for BPF_FLOW_DISSECTOR attach_type
target_fd is target namespace. If there is a flow dissector BPF program
attached to that namespace, its (single) id is returned.
v5:
* drop net ref right after rcu unlock (Daniel Borkmann)
v4:
* add missing put_net (Jann Horn)
v3:
* add missing inline to skb_flow_dissector_prog_query static def
(kbuild test robot <lkp@intel.com>)
v2:
* don't sleep in rcu critical section (Jakub Kicinski)
* check input prog_cnt (exit early)
Cc: Jann Horn <jannh@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/syscall.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 92c9b8a32b50..b0de49598341 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -2009,6 +2009,8 @@ static int bpf_prog_query(const union bpf_attr *attr, break; case BPF_LIRC_MODE2: return lirc_prog_query(attr, uattr); + case BPF_FLOW_DISSECTOR: + return skb_flow_dissector_prog_query(attr, uattr); default: return -EINVAL; } |