On 9/24/19 8:20 AM, Carlos Neira wrote:
> Signed-off-by: Carlos Neira <cneirabustos@xxxxxxxxx>
Please do add some commit message. A couple of examples,
commit 0fc2e0b84ba725c5e6ee66059936638389e67c80
Author: Alexei Starovoitov <ast@xxxxxxxxxx>
Date: Thu Aug 22 22:52:13 2019 -0700
tools/bpf: sync bpf.h
sync bpf.h from kernel/ to tools/
Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
Acked-by: Song Liu <songliubraving@xxxxxx>
Signed-off-by: Daniel Borkmann <daniel@xxxxxxxxxxxxx>
commit 1f8919b170318e7e13e303eedac363d44057995f
Author: Peter Wu <peter@xxxxxxxxxxxxx>
Date: Wed Aug 21 00:09:00 2019 +0100
bpf: sync bpf.h to tools/
Fix a 'struct pt_reg' typo and clarify when bpf_trace_printk discards
lines. Affects documentation only.
Signed-off-by: Peter Wu <peter@xxxxxxxxxxxxx>
Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
> ---
> tools/include/uapi/linux/bpf.h | 18 +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
> index 77c6be96d676..9272dc8fb08c 100644
> --- a/tools/include/uapi/linux/bpf.h
> +++ b/tools/include/uapi/linux/bpf.h
> @@ -2750,6 +2750,21 @@ union bpf_attr {
> * **-EOPNOTSUPP** kernel configuration does not enable SYN cookies
> *
> * **-EPROTONOSUPPORT** IP packet version is not 4 or 6
> + *
> + * int bpf_get_ns_current_pid_tgid(u32 dev, u64 inum)
> + * Return
> + * A 64-bit integer containing the current tgid and pid from current task
> + * which namespace inode and dev_t matches , and is create as such:
> + * *current_task*\ **->tgid << 32 \|**
> + * *current_task*\ **->pid**.
> + *
> + * On failure, the returned value is one of the following:
> + *
> + * **-EINVAL** if dev and inum supplied don't match dev_t and inode number
> + * with nsfs of current task.
> + *
> + * **-ENOENT** if /proc/self/ns does not exists.
> + *
> */
> #define __BPF_FUNC_MAPPER(FN) \
> FN(unspec), \
> @@ -2862,7 +2877,8 @@ union bpf_attr {
> FN(sk_storage_get), \
> FN(sk_storage_delete), \
> FN(send_signal), \
> - FN(tcp_gen_syncookie),
> + FN(tcp_gen_syncookie), \
> + FN(get_ns_current_pid_tgid),
>
> /* integer value in 'imm' field of BPF_CALL instruction selects which helper
> * function eBPF program intends to call
>
