Commit 4b580ee3 authored by J. Bruce Fields's avatar J. Bruce Fields Committed by Trond Myklebust
Browse files

[PATCH] NFSv4: ACL support for the NFSv4 client: write



 Client-side write support for NFSv4 ACLs.
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 23ec6965
......@@ -2216,6 +2216,29 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
return ret;
}
static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen)
{
struct nfs_server *server = NFS_SERVER(inode);
struct page *pages[NFS4ACL_MAXPAGES];
struct nfs_setaclargs arg = {
.fh = NFS_FH(inode),
.acl_pages = pages,
.acl_len = buflen,
};
struct rpc_message msg = {
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETACL],
.rpc_argp = &arg,
.rpc_resp = NULL,
};
int ret;
if (!nfs4_server_supports_acls(server))
return -EOPNOTSUPP;
buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
ret = rpc_call_sync(NFS_SERVER(inode)->client, &msg, 0);
return ret;
}
static int
nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server)
{
......@@ -2792,7 +2815,16 @@ nfs4_proc_lock(struct file *filp, int cmd, struct file_lock *request)
int nfs4_setxattr(struct dentry *dentry, const char *key, const void *buf,
size_t buflen, int flags)
{
return -EOPNOTSUPP;
struct inode *inode = dentry->d_inode;
if (strcmp(key, XATTR_NAME_NFSV4_ACL) != 0)
return -EOPNOTSUPP;
if (!S_ISREG(inode->i_mode) &&
(!S_ISDIR(inode->i_mode) || inode->i_mode & S_ISVTX))
return -EPERM;
return nfs4_proc_set_acl(inode, buf, buflen);
}
/* The getxattr man page suggests returning -ENODATA for unknown attributes,
......
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