diff options
| author | Yuyang Huang <yuyanghuang@google.com> | 2025-01-07 20:43:55 +0900 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-01-09 12:54:45 +0100 |
| commit | 33d97a07b3ae6fa713919de4e1864ca04fff8f80 (patch) | |
| tree | fe433686dcb499636a2559bf0b52cf543e78c836 /include/uapi/linux | |
| parent | e61e6c415ba9ff2b32bb6780ce1b17d1d76238f1 (diff) | |
netlink: add IPv6 anycast join/leave notifications
This change introduces a mechanism for notifying userspace
applications about changes to IPv6 anycast addresses via netlink. It
includes:
* Addition and deletion of IPv6 anycast addresses are reported using
RTM_NEWANYCAST and RTM_DELANYCAST.
* A new netlink group (RTNLGRP_IPV6_ACADDR) for subscribing to these
notifications.
This enables user space applications(e.g. ip monitor) to efficiently
track anycast addresses through netlink messages, improving metrics
collection and system monitoring. It also unlocks the potential for
advanced anycast management in user space, such as hardware offload
control and fine grained network control.
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Lorenzo Colitti <lorenzo@google.com>
Signed-off-by: Yuyang Huang <yuyanghuang@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250107114355.1766086-1-yuyanghuang@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/rtnetlink.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h index 5ee94c511a28..66c3903d29cf 100644 --- a/include/uapi/linux/rtnetlink.h +++ b/include/uapi/linux/rtnetlink.h @@ -100,7 +100,11 @@ enum { RTM_GETMULTICAST, #define RTM_GETMULTICAST RTM_GETMULTICAST - RTM_GETANYCAST = 62, + RTM_NEWANYCAST = 60, +#define RTM_NEWANYCAST RTM_NEWANYCAST + RTM_DELANYCAST, +#define RTM_DELANYCAST RTM_DELANYCAST + RTM_GETANYCAST, #define RTM_GETANYCAST RTM_GETANYCAST RTM_NEWNEIGHTBL = 64, @@ -783,6 +787,8 @@ enum rtnetlink_groups { #define RTNLGRP_IPV4_MCADDR RTNLGRP_IPV4_MCADDR RTNLGRP_IPV6_MCADDR, #define RTNLGRP_IPV6_MCADDR RTNLGRP_IPV6_MCADDR + RTNLGRP_IPV6_ACADDR, +#define RTNLGRP_IPV6_ACADDR RTNLGRP_IPV6_ACADDR __RTNLGRP_MAX }; #define RTNLGRP_MAX (__RTNLGRP_MAX - 1) |