Introduce a special helper function to check the length of NSM strings
before they are placed on the wire.
Signed-off-by: Chuck Lever <[email protected]>
---
fs/lockd/mon.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 908b23f..84fd84c 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)
{