lkml.org 
[lkml]   [2013]   [Jan]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH] cifs: fix srcip_matches() for ipv6
From
Makes sense.

How did you discover this - did you have an ipv6 test case or by
inspection or ...?

On Wed, Jan 16, 2013 at 8:36 PM, Nickolai Zeldovich
<nickolai@csail.mit.edu> wrote:
> srcip_matches() previously had code like this:
>
> srcip_matches(..., struct sockaddr *rhs) {
> /* ... */
> struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *) &rhs;
> return ipv6_addr_equal(..., &vaddr6->sin6_addr);
> }
>
> which interpreted the values on the stack after the 'rhs' pointer as an
> ipv6 address. The correct thing to do is to use 'rhs', not '&rhs'.
>
> Signed-off-by: Nickolai Zeldovich <nickolai@csail.mit.edu>
> ---
> fs/cifs/connect.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
> index 17c3643..12b3da3 100644
> --- a/fs/cifs/connect.c
> +++ b/fs/cifs/connect.c
> @@ -1917,7 +1917,7 @@ srcip_matches(struct sockaddr *srcaddr, struct sockaddr *rhs)
> }
> case AF_INET6: {
> struct sockaddr_in6 *saddr6 = (struct sockaddr_in6 *)srcaddr;
> - struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *)&rhs;
> + struct sockaddr_in6 *vaddr6 = (struct sockaddr_in6 *)rhs;
> return ipv6_addr_equal(&saddr6->sin6_addr, &vaddr6->sin6_addr);
> }
> default:
> --
> 1.7.10.4
>



--
Thanks,

Steve


\
 
 \ /
  Last update: 2013-01-17 05:41    [W:0.237 / U:0.964 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site