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List: openssh-unix-dev
Subject: Re: Patch to OpenSSH-3.4p1/monitor_mm.c for Linux 2.0
From: Ben Lindstrom <mouring () etoh ! eviladmin ! org>
Date: 2002-07-29 12:43:56
[Download RAW message or body]
Please look at the --current tree before suggestioning fixes. This has
been in for a few weeks now.
- Ben
On Mon, 29 Jul 2002, Wojtek Pilorz wrote:
> On Sat, 27 Jul 2002, Sean Conner wrote:
>
> > Date: Sat, 27 Jul 2002 15:04:46 -0400 (EDT)
> > From: Sean Conner <sean@conman.org>
> > To: openssh-unix-dev@mindrot.org
> > Subject: Patch to OpenSSH-3.4p1/monitor_mm.c for Linux 2.0
> >
> >
> > I had to modify the file monitor_mm.c to get the privledge separation to
> > work for Linux 2.0.36 (and above) and am passing on the patch to you; if
> > there is a better place to send this, please let me know. I've included a
> > new #define (USE_MMAP_DEV_ZERO) to select this patch, but am not including
> > the patch to config.h---if there's a better name for it, please, by all
> > means, change it.
> >
> > Thanks for your time and consideration.
> >
> > Sean
> You do not ever close fh; is that intentional?
>
> Best regards,
>
> Wojtek
>
>
> >
> > --- openssh-3.4p1/monitor_mm.c Tue Jun 25 20:29:03 2002
> > +++ openssh-3.4p1.new/monitor_mm.c Fri Jul 26 03:00:35 2002
> > @@ -85,10 +85,24 @@
> > mm->mmalloc = mmalloc;
> >
> > #ifdef HAVE_MMAP_ANON_SHARED
> > +# ifdef USE_MMAP_DEV_ZERO
> > + {
> > + int fh;
> > +
> > + fh = open("/dev/zero",O_RDWR);
> > + if (fh == -1)
> > + fatal("mmap(`/dev/zero'): %s",strerror(errno));
> > +
> > + address = mmap(NULL,size,PROT_WRITE|PROT_READ,MAP_PRIVATE,fh,0);
> > + if (address == MAP_FAILED)
> > + fatal("mmap(%lu,%d): %s",(u_long)size,fh,strerror(errno));
> > + }
> > +# else
> > address = mmap(NULL, size, PROT_WRITE|PROT_READ, MAP_ANON|MAP_SHARED,
> > -1, 0);
> > if (address == MAP_FAILED)
> > fatal("mmap(%lu): %s", (u_long)size, strerror(errno));
> > +# endif
> > #else
> > fatal("%s: UsePrivilegeSeparation=yes and Compression=yes not supported",
> > __func__);
> >
> > _______________________________________________
> > openssh-unix-dev@mindrot.org mailing list
> > http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
> >
>
> _______________________________________________
> openssh-unix-dev@mindrot.org mailing list
> http://www.mindrot.org/mailman/listinfo/openssh-unix-dev
>
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