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| author | Benny Halevy <bhalevy@panasas.com> | 2008-07-02 11:13:18 +0300 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-07-02 15:58:20 -0400 |
| commit | 30cff1ffff3981c8d96dc33870b652e70190ba37 (patch) | |
| tree | 26cdbe835637c5cd0885f9edc917d02cf8d66003 /fs/nfsd/nfs4xdr.c | |
| parent | 07cad1d2a4b0112acd41381d5bc6be82fd71ebac (diff) | |
| download | lwn-30cff1ffff3981c8d96dc33870b652e70190ba37.tar.gz lwn-30cff1ffff3981c8d96dc33870b652e70190ba37.zip | |
nfsd: return nfserr_minor_vers_mismatch when compound minorversion != 0
Check minorversion once before decoding any operation and reject with
nfserr_minor_vers_mismatch if != 0 (this still happens in nfsd4_proc_compound).
In this case return a zero length resultdata array as required by RFC3530.
minorversion 1 processing will have its own vector of decoders.
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 9547ab636274..413a15332177 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1019,6 +1019,9 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp) } } + if (argp->minorversion != 0) + argp->opcnt = 0; + for (i = 0; i < argp->opcnt; i++) { op = &argp->ops[i]; op->replay = NULL; @@ -1057,13 +1060,6 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp) op->opnum = ntohl(*argp->p++); switch (op->opnum) { - case 2: /* Reserved operation */ - op->opnum = OP_ILLEGAL; - if (argp->minorversion == 0) - op->status = nfserr_op_illegal; - else - op->status = nfserr_minor_vers_mismatch; - break; case OP_ACCESS: op->status = nfsd4_decode_access(argp, &op->u.access); break; |