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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-09-09 01:50:07 +0200 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-09-09 01:50:07 +0200 |
| commit | 2ecda72b49a0849ce41e7fa1fa974a245b9119f8 (patch) | |
| tree | d0c4eb474536581d79ae41ab72cb24c10571c83a /fs/nfs/super.c | |
| parent | NFS: Allow the "nfs" file system type to support NFSv4 (diff) | |
| download | linux-2ecda72b49a0849ce41e7fa1fa974a245b9119f8.tar.xz linux-2ecda72b49a0849ce41e7fa1fa974a245b9119f8.zip | |
NFSv4: Disallow 'mount -t nfs4 -overs=2' and 'mount -t nfs4 -overs=3'
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/super.c')
| -rw-r--r-- | fs/nfs/super.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 34b1ccf51adf..867f70504531 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2321,6 +2321,12 @@ static int nfs4_validate_text_mount_data(void *options, nfs4_validate_mount_flags(args); + if (args->version != 4) { + dfprintk(MOUNT, + "NFS4: Illegal mount version\n"); + return -EINVAL; + } + if (args->auth_flavor_len > 1) { dfprintk(MOUNT, "NFS4: Too many RPC auth flavours specified\n"); |