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authorTrond Myklebust <Trond.Myklebust@netapp.com>2013-05-20 12:24:03 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-06-06 16:24:37 -0400
commit4f0b429df104c8ab41fa1b3013e13e0f95f3da52 (patch)
tree52da695dd1c1e334ebb6c84ae880412507ee09c4 /fs/nfs
parentcd5875fefe09b1921ea5845890009c9b2386d566 (diff)
downloadop-kernel-dev-4f0b429df104c8ab41fa1b3013e13e0f95f3da52.zip
op-kernel-dev-4f0b429df104c8ab41fa1b3013e13e0f95f3da52.tar.gz
NFSv4.1: Enable state protection
Use the EXCHGID4_FLAG_BIND_PRINC_STATEID exchange_id flag to enable stateid protection. This means that if we create a stateid using a particular principal, then we must use the same principal if we want to change that state. IOW: if we OPEN a file using a particular credential, then we have to use the same credential in subsequent OPEN_DOWNGRADE, CLOSE, or DELEGRETURN operations that use that stateid. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/nfs4proc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 98f0df3..7490359 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5528,7 +5528,8 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred)
struct nfs41_exchange_id_args args = {
.verifier = &verifier,
.client = clp,
- .flags = EXCHGID4_FLAG_SUPP_MOVED_REFER,
+ .flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
+ EXCHGID4_FLAG_BIND_PRINC_STATEID,
};
struct nfs41_exchange_id_res res = {
0
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