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Diffstat (limited to 'fs/nfsd/nfs4proc.c')
-rw-r--r--fs/nfsd/nfs4proc.c50
1 files changed, 36 insertions, 14 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 2ab9e8501bf..59ec449b0c7 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -969,20 +969,36 @@ static struct nfsd4_operation nfsd4_ops[];
static const char *nfsd4_op_name(unsigned opnum);
/*
- * Enforce NFSv4.1 COMPOUND ordering rules.
+ * Enforce NFSv4.1 COMPOUND ordering rules:
*
- * TODO:
- * - enforce NFS4ERR_NOT_ONLY_OP,
- * - DESTROY_SESSION MUST be the final operation in the COMPOUND request.
+ * Also note, enforced elsewhere:
+ * - SEQUENCE other than as first op results in
+ * NFS4ERR_SEQUENCE_POS. (Enforced in nfsd4_sequence().)
+ * - BIND_CONN_TO_SESSION must be the only op in its compound
+ * (Will be enforced in nfsd4_bind_conn_to_session().)
+ * - DESTROY_SESSION must be the final operation in a compound, if
+ * sessionid's in SEQUENCE and DESTROY_SESSION are the same.
+ * (Enforced in nfsd4_destroy_session().)
*/
-static bool nfs41_op_ordering_ok(struct nfsd4_compoundargs *args)
+static __be32 nfs41_check_op_ordering(struct nfsd4_compoundargs *args)
{
- if (args->minorversion && args->opcnt > 0) {
- struct nfsd4_op *op = &args->ops[0];
- return (op->status == nfserr_op_illegal) ||
- (nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP);
- }
- return true;
+ struct nfsd4_op *op = &args->ops[0];
+
+ /* These ordering requirements don't apply to NFSv4.0: */
+ if (args->minorversion == 0)
+ return nfs_ok;
+ /* This is weird, but OK, not our problem: */
+ if (args->opcnt == 0)
+ return nfs_ok;
+ if (op->status == nfserr_op_illegal)
+ return nfs_ok;
+ if (!(nfsd4_ops[op->opnum].op_flags & ALLOWED_AS_FIRST_OP))
+ return nfserr_op_not_in_session;
+ if (op->opnum == OP_SEQUENCE)
+ return nfs_ok;
+ if (args->opcnt != 1)
+ return nfserr_not_only_op;
+ return nfs_ok;
}
/*
@@ -1012,6 +1028,7 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
resp->rqstp = rqstp;
resp->cstate.minorversion = args->minorversion;
resp->cstate.replay_owner = NULL;
+ resp->cstate.session = NULL;
fh_init(&resp->cstate.current_fh, NFS4_FHSIZE);
fh_init(&resp->cstate.save_fh, NFS4_FHSIZE);
/* Use the deferral mechanism only for NFSv4.0 compounds */
@@ -1024,13 +1041,13 @@ nfsd4_proc_compound(struct svc_rqst *rqstp,
if (args->minorversion > nfsd_supported_minorversion)
goto out;
- if (!nfs41_op_ordering_ok(args)) {
+ status = nfs41_check_op_ordering(args);
+ if (status) {
op = &args->ops[0];
- op->status = nfserr_sequence_pos;
+ op->status = status;
goto encode_op;
}
- status = nfs_ok;
while (!status && resp->opcnt < args->opcnt) {
op = &args->ops[resp->opcnt++];
@@ -1295,6 +1312,11 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
.op_name = "OP_SEQUENCE",
},
+ [OP_RECLAIM_COMPLETE] = {
+ .op_func = (nfsd4op_func)nfsd4_reclaim_complete,
+ .op_flags = ALLOWED_WITHOUT_FH,
+ .op_name = "OP_RECLAIM_COMPLETE",
+ },
};
static const char *nfsd4_op_name(unsigned opnum)