Date: Sat, 19 Jan 2002 11:57:35 -0500 From: Florent Parent <Florent.Parent@viagenie.qc.ca> To: Archie Cobbs <archie@dellroad.org> Cc: freebsd-net@FreeBSD.ORG, julian@elischer.org Subject: Re: netgraph: how to setsockopt on ksocket node ? Message-ID: <5390000.1011459455@blues.viagenie.qc.ca> In-Reply-To: <200201190530.g0J5U0T27493@arch20m.dellroad.org> References: <200201190530.g0J5U0T27493@arch20m.dellroad.org>
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--On 2002-01-18 21:30:00 -0800 archie@dellroad.org wrote:
>> netgraph: sendto(.dummy): Bad address
>
> Hmm.. I wonder if the problem is that this has never worked :-)
That would explain why I couldn't find any examples on using this ;-)
> That is, maybe setsockopt() is expecting the value pointer to point
> into user memory, while ng_ksocket is using a pointer that points
> into kernel memory?
>
> In which case, I don't know how to go about fixing it.. Julian?
This is what I did to make it work for me. A better fix would probably be
around the struct proc definition. If fact, you had noted "broken"
probably as a memo to fix something here...
struct proc *p = curproc ? curproc : &proc0; /* XXX broken */
*** ng_ksocket.c.orig Sat Jan 19 11:05:28 2002
--- ng_ksocket.c Sat Jan 19 11:45:23 2002
***************
*** 759,765 ****
sopt.sopt_name = ksopt->name;
sopt.sopt_val = ksopt->value;
sopt.sopt_valsize = valsize;
! sopt.sopt_p = p;
error = sosetopt(so, &sopt);
break;
}
--- 759,765 ----
sopt.sopt_name = ksopt->name;
sopt.sopt_val = ksopt->value;
sopt.sopt_valsize = valsize;
! sopt.sopt_p = 0;
error = sosetopt(so, &sopt);
break;
}
Florent.
--
Florent Parent
Viagénie http://www.viagenie.qc.ca
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