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| author | Benny Halevy <bhalevy@panasas.com> | 2009-08-14 17:20:00 +0300 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-08-14 14:02:14 -0400 |
| commit | e78291e4e07520348b0634095cf19ed3bc868965 (patch) | |
| tree | 454c29c73a333552fd8f69e8d5f082e16dc2750c /fs/nfs | |
| parent | db942bbd09563e169cc5d9004c32c1de33220fd1 (diff) | |
| download | linux-3.10-e78291e4e07520348b0634095cf19ed3bc868965.tar.gz linux-3.10-e78291e4e07520348b0634095cf19ed3bc868965.tar.bz2 linux-3.10-e78291e4e07520348b0634095cf19ed3bc868965.zip | |
nfs: nfs4xdr: introduce decode_sessionid helper
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4xdr.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 404f2e6373f..00630f42a2b 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -4212,6 +4212,11 @@ static int decode_chan_attrs(struct xdr_stream *xdr, return 0; } +static int decode_sessionid(struct xdr_stream *xdr, struct nfs4_sessionid *sid) +{ + return decode_opaque_fixed(xdr, sid->data, NFS4_MAX_SESSIONID_LEN); +} + static int decode_create_session(struct xdr_stream *xdr, struct nfs41_create_session_res *res) { @@ -4221,14 +4226,11 @@ static int decode_create_session(struct xdr_stream *xdr, struct nfs4_session *session = clp->cl_session; status = decode_op_hdr(xdr, OP_CREATE_SESSION); - - if (status) + if (!status) + status = decode_sessionid(xdr, &session->sess_id); + if (unlikely(status)) return status; - /* sessionid */ - READ_BUF(NFS4_MAX_SESSIONID_LEN); - COPYMEM(&session->sess_id, NFS4_MAX_SESSIONID_LEN); - /* seqid, flags */ READ_BUF(8); clp->cl_seqid = be32_to_cpup(p++); @@ -4262,7 +4264,9 @@ static int decode_sequence(struct xdr_stream *xdr, return 0; status = decode_op_hdr(xdr, OP_SEQUENCE); - if (status) + if (!status) + status = decode_sessionid(xdr, &id); + if (unlikely(status)) goto out_err; /* @@ -4271,15 +4275,16 @@ static int decode_sequence(struct xdr_stream *xdr, */ status = -ESERVERFAULT; - slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; - READ_BUF(NFS4_MAX_SESSIONID_LEN + 20); - COPYMEM(id.data, NFS4_MAX_SESSIONID_LEN); if (memcmp(id.data, res->sr_session->sess_id.data, NFS4_MAX_SESSIONID_LEN)) { dprintk("%s Invalid session id\n", __func__); goto out_err; } + + READ_BUF(20); + /* seqid */ + slot = &res->sr_session->fc_slot_table.slots[res->sr_slotid]; dummy = be32_to_cpup(p++); if (dummy != slot->seq_nr) { dprintk("%s Invalid sequence number\n", __func__); |