On 2/21/22 7:43 PM, Li Qiang wrote:
Hello all,
As we know, to call 'bpf_get_ns_current_pid_tgid' helper we need dev
and inode number. The inode number is quite easy to get by 'ls -lh
/proc/xx/ns/'. So how can we get the device number easily in practice?
the kernel test just uses 0 to test.
You can use the following command inside the namespace to
get the dev number and inode number.
$ stat -L /proc/self/ns/pid
File: /proc/self/ns/pid
Size: 0 Blocks: 0 IO Block: 4096 regular
empty file
Device: 4h/4d Inode: 4026531836 Links: 1
Access: (0444/-r--r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2022-02-21 22:22:48.782383342 -0800
Modify: 2022-02-21 22:22:48.782383342 -0800
Change: 2022-02-21 22:22:48.782383342 -0800
Birth: -
Thanks,
Li Qiang
