Commit e6c35529 authored by Matthieu Baerts (NGI0)'s avatar Matthieu Baerts (NGI0) Committed by Jakub Kicinski
Browse files

selftests: mptcp: pm: get server-side flag 



server-side info linked to the MPTCP connect/established events can now
come from the flags, in addition to the dedicated attribute.

The attribute is now deprecated -- in favour of the new flag, and will
be removed later on.

Print this info only once.

Reviewed-by: default avatarGeliang Tang <geliang@kernel.org>
Signed-off-by: default avatarMatthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250919-net-next-mptcp-server-side-flag-v1-4-a97a5d561a8b@kernel.org


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent c8bc168f

tools/testing/selftests/net/mptcp/pm_nl_ctl.c

+8 −1
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ 


#include <errno.h>

#include <error.h>

#include <stdbool.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>
@@ -113,6 +114,8 @@ static int capture_events(int fd, int event_group) 
		error(1, errno, "could not join the " MPTCP_PM_EV_GRP_NAME " mcast group");



	do {

		bool server_side = false;



		FD_ZERO(&rfds);

		FD_SET(fd, &rfds);

		res_len = NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
@@ -187,18 +190,22 @@ static int capture_events(int fd, int event_group) 
				else if (attrs->rta_type == MPTCP_ATTR_ERROR)

					fprintf(stderr, ",error:%u", *(__u8 *)RTA_DATA(attrs));

				else if (attrs->rta_type == MPTCP_ATTR_SERVER_SIDE)

					fprintf(stderr, ",server_side:%u", *(__u8 *)RTA_DATA(attrs));

					server_side = !!*(__u8 *)RTA_DATA(attrs);

				else if (attrs->rta_type == MPTCP_ATTR_FLAGS) {

					__u16 flags = *(__u16 *)RTA_DATA(attrs);



					/* only print when present, easier */

					if (flags & MPTCP_PM_EV_FLAG_DENY_JOIN_ID0)

						fprintf(stderr, ",deny_join_id0:1");

					if (flags & MPTCP_PM_EV_FLAG_SERVER_SIDE)

						server_side = true;

				}



				attrs = RTA_NEXT(attrs, msg_len);

			}

		}

		if (server_side)

			fprintf(stderr, ",server_side:1");

		fprintf(stderr, "\n");

	} while (1);