Re: netlink nlmsg_pid supposed to be pid or tid?

Christopher Friesen [off-list ref] wrote:

When using netlink, should "nlmsg_pid" be set to pid (current->tgid) or 
tid (current->pid)?

I tend to agree with you here that tgid makes more sense.  Dave, what
do you think?

However, you should never assume whatever value the kernel uses since
it may always choose an arbitrary value should the preferred pid/tgid
be taken by someone else.

So always use getsockname(2) to find out the correct address.

Cheers,
-- 
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Email: Herbert Xu ~{PmV>HI~} [off-list ref]
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