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authorChuck Lever <chuck.lever@oracle.com>2008-03-14 14:25:32 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2008-03-19 18:00:54 -0400
commit099bd05f27ff24a3041d54e7ed42d2eb681484b9 (patch)
treebeb5738bdce698874255eb890f84a770a83d34e5 /fs/lockd/mon.c
parentf34ec991ae0f015f5cdc51ad46c3a317ffae2466 (diff)
downloadlinux-099bd05f27ff24a3041d54e7ed42d2eb681484b9.tar.bz2
lockd: Ensure NSM strings aren't longer than protocol allows
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>
Diffstat (limited to 'fs/lockd/mon.c')
-rw-r--r--fs/lockd/mon.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 908b23fadd05..84fd84cb67b7 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -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)
{