Re: [PATCH v14 3/5] tools: Added bpf_get_ns_current_pid_tgid helper

sync tools/include/uapi/linux/bpf.h to include new helper.

Signed-off-by: Carlos Neira <redacted>
---
  tools/include/uapi/linux/bpf.h | 20 +++++++++++++++++++-
  1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index a65c3b0c6935..a17583ae9aa3 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h

@@ -2750,6 +2750,19 @@ union bpf_attr {
   *		**-EOPNOTSUPP** kernel configuration does not enable SYN cookies
   *
   *		**-EPROTONOSUPPORT** IP packet version is not 4 or 6
+ *
+ * u64 bpf_get_ns_current_pid_tgid(u64 dev, u64 ino, struct bpf_pidns_info *nsdata, u32 size)
+ *	Description
+ *		Returns 0 on success, values for *pid* and *tgid* as seen from the current
+ *		*namespace* will be returned in *nsdata*.
+ *
+ *		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, or if dev conversion to dev_t lost high bits.
+ *
+ *		**-ENOENT** if /proc/self/ns does not exists.

+ *
   */
  #define __BPF_FUNC_MAPPER(FN)		\
  	FN(unspec),			\

@@ -2862,7 +2875,8 @@ 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

@@ -3613,4 +3627,8 @@ struct bpf_sockopt {
  	__s32	retval;
  };
  
+struct bpf_pidns_info {
+	__u32 pid;
+	__u32 tgid;
+};
  #endif /* _UAPI__LINUX_BPF_H__ */