Currently, preprocess_stateid_op calls nfs4_check_olstateid which
verifies that the open stateid corresponds to the current_fh in the
call by calling nfs4_check_fh.
If the stateid is a NFS4_DELEG_STID however, then no such check is
done. Move the call to nfs4_check_fh into nfs4_check_file instead
so that it can be done for all stateid types.
Signed-off-by: Jeff Layton <jeff.layton@xxxxxxxxxxxxxxx>
---
fs/nfsd/nfs4state.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index cd8c33186e26..75f617a052cf 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -4406,9 +4406,9 @@ laundromat_main(struct work_struct *laundry)
queue_delayed_work(laundry_wq, &nn->laundromat_work, t*HZ);
}
-static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_ol_stateid *stp)
+static inline __be32 nfs4_check_fh(struct svc_fh *fhp, struct nfs4_stid *stp)
{
- if (!fh_match(&fhp->fh_handle, &stp->st_stid.sc_file->fi_fhandle))
+ if (!fh_match(&fhp->fh_handle, &stp->sc_file->fi_fhandle))
return nfserr_bad_stateid;
return nfs_ok;
}
@@ -4611,9 +4611,6 @@ nfs4_check_olstateid(struct svc_fh *fhp, struct nfs4_ol_stateid *ols, int flags)
{
__be32 status;
- status = nfs4_check_fh(fhp, ols);
- if (status)
- return status;
status = nfsd4_check_openowner_confirmed(ols);
if (status)
return status;
@@ -4628,6 +4625,10 @@ nfs4_check_file(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfs4_stid *s,
struct file *file;
__be32 status;
+ status = nfs4_check_fh(fhp, s);
+ if (status)
+ return status;
+
file = nfs4_find_file(s, flags);
if (file) {
status = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry,
@@ -4808,7 +4809,7 @@ static __be32 nfs4_seqid_op_checks(struct nfsd4_compound_state *cstate, stateid_
status = check_stateid_generation(stateid, &stp->st_stid.sc_stateid, nfsd4_has_session(cstate));
if (status)
return status;
- return nfs4_check_fh(current_fh, stp);
+ return nfs4_check_fh(current_fh, &stp->st_stid);
}
/*
--
2.4.3
--
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