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| author | Chuck Lever <chuck.lever@oracle.com> | 2008-03-14 14:25:32 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2008-03-19 18:00:54 -0400 |
| commit | 099bd05f27ff24a3041d54e7ed42d2eb681484b9 (patch) | |
| tree | beb5738bdce698874255eb890f84a770a83d34e5 /fs/lockd/mon.c | |
| parent | f34ec991ae0f015f5cdc51ad46c3a317ffae2466 (diff) | |
| download | linux-099bd05f27ff24a3041d54e7ed42d2eb681484b9.tar.gz linux-099bd05f27ff24a3041d54e7ed42d2eb681484b9.tar.bz2 linux-099bd05f27ff24a3041d54e7ed42d2eb681484b9.zip | |
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.c | 9 |
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) { |