Commit | Line | Data |
---|---|---|
a38a9eac BS |
1 | /* |
2 | * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. | |
3 | * Written by David Howells (dhowells@redhat.com) | |
4 | */ | |
5 | ||
6 | #include <linux/nfs_fs.h> | |
7 | #include "nfs4_fs.h" | |
8 | ||
9 | #define NFSDBG_FACILITY NFSDBG_CLIENT | |
10 | ||
11 | int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh) | |
12 | { | |
13 | struct nfs_fsinfo fsinfo; | |
14 | int ret = -ENOMEM; | |
15 | ||
16 | dprintk("--> nfs4_get_rootfh()\n"); | |
17 | ||
18 | fsinfo.fattr = nfs_alloc_fattr(); | |
19 | if (fsinfo.fattr == NULL) | |
20 | goto out; | |
21 | ||
22 | /* Start by getting the root filehandle from the server */ | |
23 | ret = nfs4_proc_get_rootfh(server, mntfh, &fsinfo); | |
24 | if (ret < 0) { | |
25 | dprintk("nfs4_get_rootfh: getroot error = %d\n", -ret); | |
26 | goto out; | |
27 | } | |
28 | ||
29 | if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE) | |
30 | || !S_ISDIR(fsinfo.fattr->mode)) { | |
31 | printk(KERN_ERR "nfs4_get_rootfh:" | |
32 | " getroot encountered non-directory\n"); | |
33 | ret = -ENOTDIR; | |
34 | goto out; | |
35 | } | |
36 | ||
37 | if (fsinfo.fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) { | |
38 | printk(KERN_ERR "nfs4_get_rootfh:" | |
39 | " getroot obtained referral\n"); | |
40 | ret = -EREMOTE; | |
41 | goto out; | |
42 | } | |
43 | ||
44 | memcpy(&server->fsid, &fsinfo.fattr->fsid, sizeof(server->fsid)); | |
45 | out: | |
46 | nfs_free_fattr(fsinfo.fattr); | |
47 | dprintk("<-- nfs4_get_rootfh() = %d\n", ret); | |
48 | return ret; | |
49 | } |