> -----Original Message-----
> From: Yuyang Huang <[email protected]> On Behalf Of Yuyang Huang
> Sent: Monday, October 12, 2026 3:17 AM
> To: Yuyang Huang <[email protected]>
> Cc: Ajay Singh <[email protected]>; Loktionov, Aleksandr
> <[email protected]>; Andrew Lunn <[email protected]>;
> Claudiu Beznea <[email protected]>; David S. Miller
> <[email protected]>; David Ahern <[email protected]>; Donald Hunter
> <[email protected]>; Eric Dumazet <[email protected]>; Ido
> Schimmel <[email protected]>; Keller, Jacob E
> <[email protected]>; Jakub Kicinski <[email protected]>; Johannes
> Berg <[email protected]>; Kees Cook <[email protected]>; Kory
> Maincent <[email protected]>; Kuniyuki Iwashima
> <[email protected]>; Nicolas Dichtel <[email protected]>;
> Nikolaos Gkarlis <[email protected]>; Paolo Abeni
> <[email protected]>; Sabrina Dubroca <[email protected]>; Shuah Khan
> <[email protected]>; Simon Horman <[email protected]>; Stanislav Fomichev
> <[email protected]>; Vadim Fedorenko <[email protected]>;
> Willem de Bruijn <[email protected]>; [email protected];
> [email protected]; [email protected];
> [email protected]
> Subject: [PATCH net-next v11 6/6] selftests: net: test AF_PACKET
> multicast dumps
>
> Dump the link-layer multicast addresses of a dummy device and verify
> that ifa_index restricts the dump to that device, that the all-hosts
> address joined on link up is listed without IFA_F_GLOBAL, that an
> address added with SIOCADDMULTI is listed with IFA_F_GLOBAL and
> IFA_MC_USERS, and that IFA_TARGET_NETNSID dumps another netns.
>
> Signed-off-by: Yuyang Huang <[email protected]>
> Reviewed-by: Nicolas Dichtel <[email protected]>
> ---
> tools/testing/selftests/net/rtnetlink.py | 73 +++++++++++++++++++++++-
> 1 file changed, 71 insertions(+), 2 deletions(-)
>
> diff --git a/tools/testing/selftests/net/rtnetlink.py
> b/tools/testing/selftests/net/rtnetlink.py
> index dc8c77db48974..5534ade056a5c 100755
> --- a/tools/testing/selftests/net/rtnetlink.py
> +++ b/tools/testing/selftests/net/rtnetlink.py
> @@ -5,13 +5,18 @@ import socket
> import struct
> import time
> from lib.py import bkg, ip, ksft_exit, ksft_run, ksft_eq, ksft_ge,
> ksft_true, KsftSkipEx -from lib.py import ksft_not_in, ksft_not_none
> +from lib.py import ksft_in, ksft_not_in, ksft_not_none
> from lib.py import CmdExitFailure, NetNS, NetNSEnter, RtnlAddrFamily,
> RtnlRouteFamily from lib.py import defer
>
> IPV4_ALL_HOSTS_MULTICAST = b'\xe0\x00\x00\x01'
> IPV4_TEST_MULTICAST = b'\xef\x01\x01\x01'
> IPV6_TEST_MULTICAST = bytes.fromhex('ff020000000000000000000000000123')
> +ETH_ALL_HOSTS_MULTICAST = bytes.fromhex('01005e000001')
> +ETH_TEST_MULTICAST_STR = '01:00:5e:01:01:01'
> +ETH_TEST_MULTICAST = bytes.fromhex(ETH_TEST_MULTICAST_STR.replace(':',
> +'')) ETH_PEER_MULTICAST_STR = '01:00:5e:02:02:02'
> +ETH_PEER_MULTICAST = bytes.fromhex(ETH_PEER_MULTICAST_STR.replace(':',
> +''))
>
>
> def _users_for(rtnl: RtnlAddrFamily, family: int, grp: bytes, ifindex:
> int):
> @@ -105,6 +110,69 @@ def dump_mcaddr6_check() -> None:
> s2.close()
>
>
...
> ipv6_route_del_reason_expired,
> ipv6_route_del_reason_ra_withdrawn,
> ipv6_route_del_reason_absent,
> --
> 2.43.0
Reviewed-by: Aleksandr Loktionov <[email protected]>
