Commit | Line | Data |
---|---|---|
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 | ||
1da177e4 LT |
33 | int cifs_ioctl (struct inode * inode, struct file * filep, |
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 | ||
f28ac91b SF |
50 | cFYI(1,("ioctl file %p cmd %u arg %lu",filep,command,arg)); |
51 | ||
f654bac2 | 52 | cifs_sb = CIFS_SB(inode->i_sb); |
f654bac2 | 53 | |
c81156dd SF |
54 | #ifdef CONFIG_CIFS_POSIX |
55 | tcon = cifs_sb->tcon; | |
f654bac2 SF |
56 | if(tcon) |
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 | |
1da177e4 | 65 | switch(command) { |
f28ac91b SF |
66 | case CIFS_IOC_CHECKUMOUNT: |
67 | cFYI(1,("User unmount attempted")); | |
f28ac91b SF |
68 | if(cifs_sb->mnt_uid == current->uid) |
69 | rc = 0; | |
70 | else { | |
71 | rc = -EACCES; | |
72 | cFYI(1,("uids do not match")); | |
73 | } | |
74 | break; | |
75 | #ifdef CONFIG_CIFS_POSIX | |
36695673 | 76 | case FS_IOC_GETFLAGS: |
f654bac2 | 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); | |
82 | if(rc == 0) | |
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: |
f654bac2 SF |
90 | if(CIFS_UNIX_EXTATTR_CAP & caps) { |
91 | if(get_user(ExtAttrBits,(int __user *)arg)) { | |
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 SF |
98 | extAttrBits, &ExtAttrMask);*/ |
99 | ||
100 | } | |
1da177e4 | 101 | cFYI(1,("set flags not implemented yet")); |
f654bac2 | 102 | break; |
f28ac91b | 103 | #endif /* CONFIG_CIFS_POSIX */ |
1da177e4 LT |
104 | default: |
105 | cFYI(1,("unsupported ioctl")); | |
f28ac91b | 106 | break; |
1da177e4 | 107 | } |
f654bac2 | 108 | |
f654bac2 | 109 | FreeXid(xid); |
1da177e4 LT |
110 | return rc; |
111 | } |