Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * fs/cifs/ioctl.c | |
3 | * | |
4 | * vfs operations that deal with io control | |
5 | * | |
6 | * Copyright (C) International Business Machines Corp., 2005 | |
7 | * Author(s): Steve French (sfrench@us.ibm.com) | |
8 | * | |
9 | * This library is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU Lesser General Public License as published | |
11 | * by the Free Software Foundation; either version 2.1 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This library is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See | |
17 | * the GNU Lesser General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU Lesser General Public License | |
20 | * along with this library; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | */ | |
f654bac2 | 23 | |
1da177e4 | 24 | #include <linux/fs.h> |
1da177e4 LT |
25 | #include "cifspdu.h" |
26 | #include "cifsglob.h" | |
27 | #include "cifsproto.h" | |
28 | #include "cifs_debug.h" | |
c67593a0 | 29 | #include "cifsfs.h" |
1da177e4 | 30 | |
f28ac91b SF |
31 | #define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2) |
32 | ||
5fdae1f6 | 33 | int cifs_ioctl (struct inode * inode, struct file * filep, |
1da177e4 LT |
34 | unsigned int command, unsigned long arg) |
35 | { | |
36 | int rc = -ENOTTY; /* strange error - but the precedent */ | |
c81156dd SF |
37 | int xid; |
38 | struct cifs_sb_info *cifs_sb; | |
1da177e4 | 39 | #ifdef CONFIG_CIFS_POSIX |
f654bac2 SF |
40 | __u64 ExtAttrBits = 0; |
41 | __u64 ExtAttrMask = 0; | |
f28ac91b | 42 | __u64 caps; |
f654bac2 SF |
43 | struct cifsTconInfo *tcon; |
44 | struct cifsFileInfo *pSMBFile = | |
45 | (struct cifsFileInfo *)filep->private_data; | |
c81156dd | 46 | #endif /* CONFIG_CIFS_POSIX */ |
f654bac2 SF |
47 | |
48 | xid = GetXid(); | |
49 | ||
5fdae1f6 | 50 | cFYI(1, ("ioctl file %p cmd %u arg %lu", filep, command, arg)); |
f28ac91b | 51 | |
f654bac2 | 52 | cifs_sb = CIFS_SB(inode->i_sb); |
f654bac2 | 53 | |
c81156dd SF |
54 | #ifdef CONFIG_CIFS_POSIX |
55 | tcon = cifs_sb->tcon; | |
5fdae1f6 | 56 | if (tcon) |
f654bac2 SF |
57 | caps = le64_to_cpu(tcon->fsUnixInfo.Capability); |
58 | else { | |
59 | rc = -EIO; | |
c81156dd SF |
60 | FreeXid(xid); |
61 | return -EIO; | |
f654bac2 | 62 | } |
c81156dd | 63 | #endif /* CONFIG_CIFS_POSIX */ |
f654bac2 | 64 | |
5fdae1f6 | 65 | switch (command) { |
f28ac91b | 66 | case CIFS_IOC_CHECKUMOUNT: |
5fdae1f6 SF |
67 | cFYI(1, ("User unmount attempted")); |
68 | if (cifs_sb->mnt_uid == current->uid) | |
f28ac91b SF |
69 | rc = 0; |
70 | else { | |
71 | rc = -EACCES; | |
5fdae1f6 | 72 | cFYI(1, ("uids do not match")); |
f28ac91b SF |
73 | } |
74 | break; | |
75 | #ifdef CONFIG_CIFS_POSIX | |
36695673 | 76 | case FS_IOC_GETFLAGS: |
5fdae1f6 | 77 | if (CIFS_UNIX_EXTATTR_CAP & caps) { |
f28ac91b | 78 | if (pSMBFile == NULL) |
c81156dd | 79 | break; |
f654bac2 SF |
80 | rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid, |
81 | &ExtAttrBits, &ExtAttrMask); | |
5fdae1f6 | 82 | if (rc == 0) |
f654bac2 | 83 | rc = put_user(ExtAttrBits & |
36695673 | 84 | FS_FL_USER_VISIBLE, |
f654bac2 SF |
85 | (int __user *)arg); |
86 | } | |
87 | break; | |
88 | ||
36695673 | 89 | case FS_IOC_SETFLAGS: |
5fdae1f6 SF |
90 | if (CIFS_UNIX_EXTATTR_CAP & caps) { |
91 | if (get_user(ExtAttrBits, (int __user *)arg)) { | |
f654bac2 | 92 | rc = -EFAULT; |
c81156dd | 93 | break; |
f654bac2 | 94 | } |
f28ac91b | 95 | if (pSMBFile == NULL) |
c81156dd | 96 | break; |
f28ac91b | 97 | /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid, |
f654bac2 | 98 | extAttrBits, &ExtAttrMask);*/ |
f654bac2 | 99 | } |
5fdae1f6 | 100 | cFYI(1, ("set flags not implemented yet")); |
f654bac2 | 101 | break; |
f28ac91b | 102 | #endif /* CONFIG_CIFS_POSIX */ |
1da177e4 | 103 | default: |
5fdae1f6 | 104 | cFYI(1, ("unsupported ioctl")); |
f28ac91b | 105 | break; |
1da177e4 | 106 | } |
f654bac2 | 107 | |
f654bac2 | 108 | FreeXid(xid); |
1da177e4 | 109 | return rc; |
5fdae1f6 | 110 | } |