static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
struct xdr_stream *xdr,
const struct nfs3_setaclargs *args)
{
unsigned int base;
int error;
encode_nfs_fh3(xdr, NFS_FH(args->inode));
encode_uint32(xdr, args->mask);
base = req->rq_slen;
if (args->npages != 0)
xdr_write_pages(xdr, args->pages, 0, args->len);
else
xdr_reserve_space(xdr, NFS_ACL_INLINE_BUFSIZE);
error = nfsacl_encode(xdr->buf, base, args->inode,
(args->mask & NFS_ACL) ?
args->acl_access : NULL, 1, 0);
BUG_ON(error < 0);
error = nfsacl_encode(xdr->buf, base + error, args->inode,
(args->mask & NFS_DFACL) ?
args->acl_default : NULL, 1,
NFS_ACL_DEFAULT);
BUG_ON(error < 0);
}
/* GETACL */
static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_getaclres *resp)
{
struct dentry *dentry = resp->fh.fh_dentry;
struct inode *inode;
struct kvec *head = rqstp->rq_res.head;
unsigned int base;
int n;
int w;
/*
* Since this is version 2, the check for nfserr in
* nfsd_dispatch actually ensures the following cannot happen.
* However, it seems fragile to depend on that.
*/
if (dentry == NULL || dentry->d_inode == NULL)
return 0;
inode = dentry->d_inode;
p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
*p++ = htonl(resp->mask);
if (!xdr_ressize_check(rqstp, p))
return 0;
base = (char *)p - (char *)head->iov_base;
rqstp->rq_res.page_len = w = nfsacl_size(
(resp->mask & NFS_ACL) ? resp->acl_access : NULL,
(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
while (w > 0) {
if (!rqstp->rq_respages[rqstp->rq_resused++])
return 0;
w -= PAGE_SIZE;
}
n = nfsacl_encode(&rqstp->rq_res, base, inode,
resp->acl_access,
resp->mask & NFS_ACL, 0);
if (n > 0)
n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
resp->acl_default,
resp->mask & NFS_DFACL,
NFS_ACL_DEFAULT);
if (n <= 0)
return 0;
return 1;
}
/* GETACL */
static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, __be32 *p,
struct nfsd3_getaclres *resp)
{
struct dentry *dentry = resp->fh.fh_dentry;
p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
if (resp->status == 0 && dentry && dentry->d_inode) {
struct inode *inode = dentry->d_inode;
struct kvec *head = rqstp->rq_res.head;
unsigned int base;
int n;
int w;
*p++ = htonl(resp->mask);
if (!xdr_ressize_check(rqstp, p))
return 0;
base = (char *)p - (char *)head->iov_base;
rqstp->rq_res.page_len = w = nfsacl_size(
(resp->mask & NFS_ACL) ? resp->acl_access : NULL,
(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
while (w > 0) {
if (!rqstp->rq_respages[rqstp->rq_resused++])
return 0;
w -= PAGE_SIZE;
}
n = nfsacl_encode(&rqstp->rq_res, base, inode,
resp->acl_access,
resp->mask & NFS_ACL, 0);
if (n > 0)
n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
resp->acl_default,
resp->mask & NFS_DFACL,
NFS_ACL_DEFAULT);
if (n <= 0)
return 0;
} else
if (!xdr_ressize_check(rqstp, p))
return 0;
return 1;
}
