On Sun, Feb 12, 2023 at 10:29:11PM -0800, Yonghong Song wrote: > > > On 2/11/23 12:19 PM, Cong Wang wrote: > > From: Cong Wang <cong.wang@xxxxxxxxxxxxx> > > > > Currently there is no way to know which sockmap a socket has been added > > to from outside, especially for that a socket can be added to multiple > > sockmap's. We could dump this via socket diag, as shown below. > > > > Sample output: > > > > # ./iproute2/misc/ss -tnaie --sockmap > > ESTAB 0 344329 127.0.0.1:1234 127.0.0.1:40912 ino:21098 sk:5 cgroup:/user.slice/user-0.slice/session-c1.scope <-> sockmap: 1 > > > > # bpftool map > > 1: sockmap flags 0x0 > > key 4B value 4B max_entries 2 memlock 4096B > > pids echo-sockmap(549) > > 4: array name pid_iter.rodata flags 0x480 > > key 4B value 4B max_entries 1 memlock 4096B > > btf_id 10 frozen > > pids bpftool(624) > > > > In the future, we could dump other sockmap related stats too, hence I > > make it a nested attribute. > > Have you considered to implement a sockmap iterator? This will be I think you understand it wrong, I don't want to dump the map, please double check the above requirement. Thanks.
