netdev - [PATCH v3 net-next 0/2] rtnetlink: Updates to rtnetlink

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Date:   Fri, 21 Apr 2017 13:31:19 -0400
From:   Vladislav Yasevich <vyasevich@...il.com>
To:     netdev@...r.kernel.org
Cc:     dsa@...ulusnetworks.com, Vladislav Yasevich <vyasevic@...hat.com>
Subject: [PATCH v3 net-next 0/2] rtnetlink: Updates to rtnetlink_event()

This is a version 3 series came out of the conversation that started
as a result my first attempt to add netdevice event info to netlink messages.

First, let's clean-up the duplicate notifications for NETDEV_CHANGNAME
event.  We get a message from the event handler as well as a result of
do_setlink().  The two messages are identical, so remove the event.

Second, update the original patch to add IFLA_EVENT attribute
to the link message to only support currently white-listed events.
Like before, this is just an attribute that gets added to the rtnetlink
message only when the messaged was generated as a result of a netdev event.
In my case, this is necessary since I want to trap NETDEV_NOTIFY_PEERS
event (also possibly NETDEV_RESEND_IGMP event) and perform certain actions
in user space.  This is not possible since the messages generated as
a result of netdev events do not usually contain any changed data.  They
are just notifications.  This patch exposes this notification type to
userspace.

I will also update my patch to iproute that will show this data
through 'ip monitor'. 

V3: Rebased.  Cleaned-up duplicate event.

V2: Added missed events (from David Ahern)

Vladislav Yasevich (2):
  rtnetlink: Convert rtnetlink_event to white list
  rtnl: Add support for netdev event to link messages

 include/linux/rtnetlink.h    |   3 +-
 include/uapi/linux/if_link.h |  21 ++++++++
 net/core/dev.c               |   2 +-
 net/core/rtnetlink.c         | 121 +++++++++++++++++++++++++++++++++++--------
 4 files changed, 123 insertions(+), 24 deletions(-)

-- 
2.7.4

Vladislav Yasevich (2):
  rtnetlink: Disable notification for NETDEV_NAMECHANGE event
  rtnl: Add support for netdev event to link messages

 include/linux/rtnetlink.h    |  3 ++-
 include/uapi/linux/if_link.h | 11 ++++++++
 net/core/dev.c               |  2 +-
 net/core/rtnetlink.c         | 63 +++++++++++++++++++++++++++++++++++++-------
 4 files changed, 67 insertions(+), 12 deletions(-)

-- 
2.7.4