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Re: [GSoC 2017] ioctl operations


From: Samuel Thibault
Subject: Re: [GSoC 2017] ioctl operations
Date: Sat, 15 Jul 2017 19:36:40 +0200
User-agent: NeoMutt/20170113 (1.7.2)

Joan Lledó, on sam. 15 juil. 2017 19:23:53 +0200, wrote:
> installed on. Thus, pfinet was returning EPERM because it was
> installed on /servers/socket/2, where my user wasn't the owner, while
> lwip was installed on a file in my home.

Heh, yes, that's one of the "surprising" advantages of running a
userland tcp/ip stack: when running it as a normal user, that user can
configure it :)

> Why would anybody need to change the default broadcast address of
> her/his network?

I haven't seen a case where it'd be useful

> I increased the value to the amazing amount of 32, I hope the Hurd can
> cope with it :P.

That's still very low and will most probably pose problems.

> Unfortunately, this problem doesn't seem to have a solution.

Ew :/

Would LwIP maintainers really be against having an option to make this
dynamic?

> This made me wonder if there's a max number of sockets in other
> systems.

system-wide speaking, I don't think these usually is. Per process, there
is the NOFILE limitation.

One of the GNU/Hurd system goals is precisely to avoid these kinds of
limitations anyway :)

Samuel



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