Commit 35e634b8 authored by Kinglong Mee's avatar Kinglong Mee Committed by J. Bruce Fields

NFSD: Check acl returned from get_acl/posix_acl_from_mode

Commit 4ac7249e (nfsd: use get_acl and ->set_acl)
don't check the acl returned from get_acl()/posix_acl_from_mode().
Signed-off-by: default avatarKinglong Mee <kinglongmee@gmail.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 25594290
......@@ -54,14 +54,14 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
acl = get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl)) {
nfserr = nfserrno(PTR_ERR(acl));
goto fail;
}
if (acl == NULL) {
/* Solaris returns the inode's minimum ACL. */
acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
}
if (IS_ERR(acl)) {
nfserr = nfserrno(PTR_ERR(acl));
goto fail;
}
resp->acl_access = acl;
}
if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
......
......@@ -47,14 +47,14 @@ static __be32 nfsd3_proc_getacl(struct svc_rqst * rqstp,
if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
acl = get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl)) {
nfserr = nfserrno(PTR_ERR(acl));
goto fail;
}
if (acl == NULL) {
/* Solaris returns the inode's minimum ACL. */
acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
}
if (IS_ERR(acl)) {
nfserr = nfserrno(PTR_ERR(acl));
goto fail;
}
resp->acl_access = acl;
}
if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
......
......@@ -146,17 +146,23 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry,
int size = 0;
pacl = get_acl(inode, ACL_TYPE_ACCESS);
if (!pacl) {
if (!pacl)
pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
if (IS_ERR(pacl))
return PTR_ERR(pacl);
}
if (IS_ERR(pacl))
return PTR_ERR(pacl);
/* allocate for worst case: one (deny, allow) pair each: */
size += 2 * pacl->a_count;
if (S_ISDIR(inode->i_mode)) {
flags = NFS4_ACL_DIR;
dpacl = get_acl(inode, ACL_TYPE_DEFAULT);
if (IS_ERR(dpacl)) {
error = PTR_ERR(dpacl);
goto rel_pacl;
}
if (dpacl)
size += 2 * dpacl->a_count;
}
......@@ -173,9 +179,10 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry,
if (dpacl)
_posix_to_nfsv4_one(dpacl, *acl, flags | NFS4_ACL_TYPE_DEFAULT);
out:
posix_acl_release(pacl);
out:
posix_acl_release(dpacl);
rel_pacl:
posix_acl_release(pacl);
return error;
}
......
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