Re: Adding ifam_pid to ifa_msghdr

[christos%astron.com@localhost (Christos Zoulas)]

In article <2bb97893-29ae-4eda-2fc7-5ed5bd3d34bb%marples.name@localhost>,
Roy Marples  <roy%marples.name@localhost> wrote:
>On 31/08/2016 07:02, Christos Zoulas wrote:
>> In article <3585331.9LpqSETiX3%uberpc.marples.name@localhost>,
>> Roy Marples  <roy%marples.name@localhost> wrote:
>>> Hi List!
>>>
>>> Unlike rtm_msghdr, ifam_msghdr has no idea of the identity of the
>process who 
>>> added or deleted an address.
>>>
>>> This is important for processes which add/delete addresses while
>listening for 
>>> 3rd parties to add/delete addresses as well, so self generated
>messages can be 
>>> ignored.
>>>
>>> Here is a simple patch which adds ifam_pid to ifa_msghdr so the identity of 
>>> the sender is known.
>>> http://www.netbsd.org/~roy/ifam_pid.patch
>>>
>>> Unless anyone objects, I will add this soon.
>> 
>> If only it was that simple... See sys/compat/net/if.h how to do it properly.
>
>OK, I have a new patch for this here:
>http://www.netbsd.org/~roy/ifam_pid_addrflags.patch
>
>I took the liberty of adding ifam_addrflags while here, so that it can
>be added to getifaddrs(3) and both save an extra ioctl per address for
>programs like dhcpcd, which also decreases it's binary size.
>http://www.netbsd.org/~roy/ifaddrs_addrflags.patch
>
>Comments welcome.

You need to version getifaddrs(3).

christos