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 | * | |
fb8c4b14 | 6 | * Copyright (C) International Business Machines Corp., 2005,2007 |
1da177e4 LT |
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 | ||
f9ddcca4 | 33 | long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg) |
1da177e4 | 34 | { |
f9ddcca4 | 35 | struct inode *inode = filep->f_dentry->d_inode; |
1da177e4 | 36 | int rc = -ENOTTY; /* strange error - but the precedent */ |
6d5786a3 | 37 | unsigned int xid; |
c81156dd | 38 | struct cifs_sb_info *cifs_sb; |
1da177e4 | 39 | #ifdef CONFIG_CIFS_POSIX |
ba00ba64 | 40 | struct cifsFileInfo *pSMBFile = filep->private_data; |
96daf2b0 | 41 | struct cifs_tcon *tcon; |
f654bac2 SF |
42 | __u64 ExtAttrBits = 0; |
43 | __u64 ExtAttrMask = 0; | |
61876395 | 44 | __u64 caps; |
c81156dd | 45 | #endif /* CONFIG_CIFS_POSIX */ |
f654bac2 | 46 | |
6d5786a3 | 47 | xid = get_xid(); |
f654bac2 | 48 | |
b6b38f70 | 49 | cFYI(1, "ioctl file %p cmd %u arg %lu", filep, command, arg); |
f28ac91b | 50 | |
f654bac2 | 51 | cifs_sb = CIFS_SB(inode->i_sb); |
f654bac2 | 52 | |
5fdae1f6 | 53 | switch (command) { |
4d61cd6e | 54 | static bool warned = false; |
f28ac91b | 55 | case CIFS_IOC_CHECKUMOUNT: |
4d61cd6e JL |
56 | if (!warned) { |
57 | warned = true; | |
58 | cERROR(1, "the CIFS_IOC_CHECKMOUNT ioctl will " | |
59 | "be deprecated in 3.7. Please " | |
60 | "migrate away from the use of " | |
61 | "umount.cifs"); | |
62 | } | |
b6b38f70 | 63 | cFYI(1, "User unmount attempted"); |
a001e5b5 | 64 | if (cifs_sb->mnt_uid == current_uid()) |
f28ac91b SF |
65 | rc = 0; |
66 | else { | |
67 | rc = -EACCES; | |
b6b38f70 | 68 | cFYI(1, "uids do not match"); |
f28ac91b SF |
69 | } |
70 | break; | |
71 | #ifdef CONFIG_CIFS_POSIX | |
36695673 | 72 | case FS_IOC_GETFLAGS: |
61876395 JL |
73 | if (pSMBFile == NULL) |
74 | break; | |
75 | tcon = tlink_tcon(pSMBFile->tlink); | |
76 | caps = le64_to_cpu(tcon->fsUnixInfo.Capability); | |
5fdae1f6 | 77 | if (CIFS_UNIX_EXTATTR_CAP & caps) { |
f654bac2 SF |
78 | rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid, |
79 | &ExtAttrBits, &ExtAttrMask); | |
5fdae1f6 | 80 | if (rc == 0) |
f654bac2 | 81 | rc = put_user(ExtAttrBits & |
36695673 | 82 | FS_FL_USER_VISIBLE, |
f654bac2 SF |
83 | (int __user *)arg); |
84 | } | |
85 | break; | |
86 | ||
36695673 | 87 | case FS_IOC_SETFLAGS: |
61876395 JL |
88 | if (pSMBFile == NULL) |
89 | break; | |
90 | tcon = tlink_tcon(pSMBFile->tlink); | |
91 | caps = le64_to_cpu(tcon->fsUnixInfo.Capability); | |
5fdae1f6 SF |
92 | if (CIFS_UNIX_EXTATTR_CAP & caps) { |
93 | if (get_user(ExtAttrBits, (int __user *)arg)) { | |
f654bac2 | 94 | rc = -EFAULT; |
c81156dd | 95 | break; |
f654bac2 | 96 | } |
f28ac91b | 97 | /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid, |
f654bac2 | 98 | extAttrBits, &ExtAttrMask);*/ |
f654bac2 | 99 | } |
b6b38f70 | 100 | cFYI(1, "set flags not implemented yet"); |
f654bac2 | 101 | break; |
f28ac91b | 102 | #endif /* CONFIG_CIFS_POSIX */ |
1da177e4 | 103 | default: |
b6b38f70 | 104 | cFYI(1, "unsupported ioctl"); |
f28ac91b | 105 | break; |
1da177e4 | 106 | } |
f654bac2 | 107 | |
6d5786a3 | 108 | free_xid(xid); |
1da177e4 | 109 | return rc; |
5fdae1f6 | 110 | } |