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Re: [libvirt] [PATCH 2/2] Make sure the rundir is accessible by the user



On Wed, Mar 09, 2011 at 02:19:18PM +0100, Guido Günther wrote:
> On Wed, Mar 09, 2011 at 09:20:50AM +0100, Guido Günther wrote:
> > otherwise the user might not have enough permissions to access the
> > socket if roots umask is 077.
> This version of the patch fixes the dependency on a sane umask without
> introducing a new function.
> O.k. to apply?
> Cheers,
>  -- Guido

> >From 7595fc991a7fe398466d1e3fac0b52ad9e389602 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Guido=20G=C3=BCnther?= <agx sigxcpu org>
> Date: Wed, 9 Mar 2011 14:15:48 +0100
> Subject: [PATCH] Make sure the rundir is accessible by the user
> 
> otherwise the user might not have enough permissions to access the
> socket if root's umask is 077.
> 
> http://bugs.debian.org/614210
> ---
>  daemon/libvirtd.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c
> index 452566c..9a5a53e 100644
> --- a/daemon/libvirtd.c
> +++ b/daemon/libvirtd.c
> @@ -3277,16 +3277,20 @@ int main(int argc, char **argv) {
>      /* Ensure the rundir exists (on tmpfs on some systems) */
>      if (geteuid() == 0) {
>          const char *rundir = LOCALSTATEDIR "/run/libvirt";
> +        mode_t old_umask;
>  
> +        old_umask = umask(022);
>          if (mkdir (rundir, 0755)) {
>              if (errno != EEXIST) {
>                  char ebuf[1024];
>                  VIR_ERROR(_("unable to create rundir %s: %s"), rundir,
>                            virStrerror(errno, ebuf, sizeof(ebuf)));
>                  ret = VIR_DAEMON_ERR_RUNDIR;
> +                umask(old_umask);
>                  goto error;
>              }
>          }
> +        umask(old_umask);
>      }
>  
>      /* Beyond this point, nothing should rely on using

ACK

Daniel
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