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Date:      Fri, 14 Jul 2006 17:35:14 +0300
From:      mykola.stryebkov@gmail.com
To:        Simon 'corecode' Schubert <corecode@fs.ei.tum.de>
Cc:        hackers@freebsd.org, Mykola Stryebkov <mykola.stryebkov@gmail.com>
Subject:   Re: fork inside ip_input
Message-ID:  <20060714143514.GA2838@taran.infoua.com.ua>
In-Reply-To: <44B7A2C8.7050407@fs.ei.tum.de>
References:  <20060714134953.GA2404@taran.infoua.com.ua> <44B7A2C8.7050407@fs.ei.tum.de>

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On 14.07.2006 15:57:28, Simon 'corecode' Schubert wrote:
> Mykola Stryebkov wrote:
> >Hi all.
> >
> >Have a strange question: is it possible to create new process (using
> >fork or fork1) from inside of ip_input()?
> 
> i don't think so.
> 
> >In kernel sources i found example of using fork1 in init_main.c but
> >looking into ip_input.c i do not understand where i can get pointers to
> >a thread and parent process to pass it into fork1.
> 
> only a process can fork, but ip_input is run from interrupt, not in a 
> process context. which process do you want to fork anyways?

I want to start user-level process on first incoming RTP packet to
install and keep TCP control connection.

-- 
Nick Strebkov
Public key: http://humgat.org/~nick/pubkey.txt
fpr: 552C 88D6 895B 6E64 F277 D367 8A70 8132 47F5 C1B6



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