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lockd: Ensure NSM strings aren't longer than protocol allows

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Introduce a special helper function to check the length of NSM strings
before they are placed on the wire.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2008-03-14 14:25:32 -04:00 committed by Trond Myklebust
parent f34ec991ae
commit 099bd05f27
1 changed files with 9 additions and 0 deletions
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9
fs/lockd/mon.c
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@ -149,6 +149,15 @@ nsm_create(void)
* XDR functions for NSM.
*/
static __be32 *xdr_encode_nsm_string(__be32 *p, char *string)
{
size_t len = strlen(string);
if (len > SM_MAXSTRLEN)
len = SM_MAXSTRLEN;
return xdr_encode_opaque(p, string, len);
}
static __be32 *
xdr_encode_common(struct rpc_rqst *rqstp, __be32 *p, struct nsm_args *argp)
{