[libvirt] [PATCH] Give correct error message when configure a wrong URI aliase.

Daniel P. Berrange berrange at redhat.com
Tue Nov 22 09:36:59 UTC 2011


On Tue, Nov 22, 2011 at 04:07:21PM +0800, Daniel Veillard wrote:
> On Tue, Nov 22, 2011 at 11:27:04AM +0800, taget at linux.vnet.ibm.com wrote:
> > From: Eli Qiao <taget at linux.vnet.ibm.com>
> > 
> > Signed-off-by: Eli Qiao <taget at linux.vnet.ibm.com>
> > 
> > When configure the URI aliase like this in 'libvirt.conf':
> > 
> > uri_aliases = [
> >   "jj#j=qemu+ssh://root@127.0.0.1/system",
> >   "sleet=qemu+ssh://root@sleet.cloud.example.com/system",
> > ]
> > virsh -c jj#j
> 
>   No, we don't want # to appear in aliases as this will lead to
>   confusion
> 
> > It will show this error message:
> > 'no connection driver available for No connection for URI jj#j'
> > Actually ,we expect this message below:
> > Malformed 'uri_aliases' config entry 'jj#j=qemu+ssh://root@127.0.0.1/system', aliases may only container 'a-Z, 0-9, _, -'
> > 
> > Give this patch to fix this error.
> > ---
> >  src/libvirt.c |    5 -----
> >  1 files changed, 0 insertions(+), 5 deletions(-)
> > 
> > diff --git a/src/libvirt.c b/src/libvirt.c
> > index 1518ed2..17e073e 100644
> > --- a/src/libvirt.c
> > +++ b/src/libvirt.c
> > @@ -1054,11 +1054,6 @@ virConnectOpenResolveURIAlias(const char *alias, char **uri)
> >  
> >      *uri = NULL;
> >  
> > -    /* Short circuit to avoid doing URI alias resolution
> > -     * when it clearly isn't an valid alias */
> > -    if (strspn(alias, URI_ALIAS_CHARS) != strlen(alias))
> > -        return 0;
> > -
> >      if (!(config = virConnectConfigFile()))
> >          goto cleanup;
> 
>   I disagree, I don't see any need to have complex aliases values.
> The principle is precisely to keep them simple. Use "jj" instead of "jj#j"
> for example.
> 
>   NACK

Actually, the patch doesn't change what is allowed - it still forbids
'jj#j' later on in the code. This only changes error reporting to be
more clear, so I ACK this.


Daniel
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