From owner-freebsd-net  Fri Jan 18  2:45:57 2002
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Date: Fri, 18 Jan 2002 11:55:09 +0100
To: Florent Parent <Florent.Parent@viagenie.qc.ca>
From: "Rogier R. Mulhuijzen" <drwilco@drwilco.net>
Subject: Re: netgraph: how to setsockopt on ksocket node ?
Cc: freebsd-net@freebsd.org
In-Reply-To: <214190000.1011326302@blues.viagenie.qc.ca>
References: <200201180216.g0I2G8k23055@arch20m.dellroad.org>
 <200201180216.g0I2G8k23055@arch20m.dellroad.org>
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Hi Florent,

You use:

     struct opts {
         int level;
         int name;
         int value;
     } myopts;

     myopts.level = SOL_SOCKET;
     myopts.name  = SO_REUSEPORT;
     myopts.value = 1;

But socket options (on this level) are a predefined struct. Here's an 
example from some code I am working on:

     struct sockopt sopt;

     /* some code removed */

     bzero(&sopt, sizeof(sopt));
     sopt.sopt_level = SOL_SOCKET;
     sopt.sopt_name = SO_SNDBUF;
     bufsiz = 128 * 1024;      /* XXX */
     sopt.sopt_val = &bufsiz;
     sopt.sopt_valsize = sizeof(bufsiz);

Hope this clears a few things up =)   (BTW, I'm not using netgraph after 
this code, but I know from reading the netgraph source that this struct 
sockopt is what is used).

	Doc


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