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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [cifs/] [ioctl.c] - Blame information for rev 78

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/*
 *   fs/cifs/ioctl.c
 *
 *   vfs operations that deal with io control
 *
 *   Copyright (C) International Business Machines  Corp., 2005,2007
 *   Author(s): Steve French (sfrench@us.ibm.com)
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU Lesser General Public License as published
 *   by the Free Software Foundation; either version 2.1 of the License, or
 *   (at your option) any later version.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 *   the GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public License
 *   along with this library; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
#include <linux/fs.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"
 
#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)
 
int cifs_ioctl (struct inode *inode, struct file *filep,
                unsigned int command, unsigned long arg)
{
        int rc = -ENOTTY; /* strange error - but the precedent */
        int xid;
        struct cifs_sb_info *cifs_sb;
#ifdef CONFIG_CIFS_POSIX
        __u64   ExtAttrBits = 0;
        __u64   ExtAttrMask = 0;
        __u64   caps;
        struct cifsTconInfo *tcon;
        struct cifsFileInfo *pSMBFile =
                (struct cifsFileInfo *)filep->private_data;
#endif /* CONFIG_CIFS_POSIX */
 
        xid = GetXid();
 
        cFYI(1, ("ioctl file %p  cmd %u  arg %lu", filep, command, arg));
 
        cifs_sb = CIFS_SB(inode->i_sb);
 
#ifdef CONFIG_CIFS_POSIX
        tcon = cifs_sb->tcon;
        if (tcon)
                caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
        else {
                rc = -EIO;
                FreeXid(xid);
                return -EIO;
        }
#endif /* CONFIG_CIFS_POSIX */
 
        switch (command) {
                case CIFS_IOC_CHECKUMOUNT:
                        cFYI(1, ("User unmount attempted"));
                        if (cifs_sb->mnt_uid == current->uid)
                                rc = 0;
                        else {
                                rc = -EACCES;
                                cFYI(1, ("uids do not match"));
                        }
                        break;
#ifdef CONFIG_CIFS_POSIX
                case FS_IOC_GETFLAGS:
                        if (CIFS_UNIX_EXTATTR_CAP & caps) {
                                if (pSMBFile == NULL)
                                        break;
                                rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,
                                        &ExtAttrBits, &ExtAttrMask);
                                if (rc == 0)
                                        rc = put_user(ExtAttrBits &
                                                FS_FL_USER_VISIBLE,
                                                (int __user *)arg);
                        }
                        break;
 
                case FS_IOC_SETFLAGS:
                        if (CIFS_UNIX_EXTATTR_CAP & caps) {
                                if (get_user(ExtAttrBits, (int __user *)arg)) {
                                        rc = -EFAULT;
                                        break;
                                }
                                if (pSMBFile == NULL)
                                        break;
                                /* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,
                                        extAttrBits, &ExtAttrMask);*/
                        }
                        cFYI(1, ("set flags not implemented yet"));
                        break;
#endif /* CONFIG_CIFS_POSIX */
                default:
                        cFYI(1, ("unsupported ioctl"));
                        break;
        }
 
        FreeXid(xid);
        return rc;
}

Line No.	Rev	Author	Line
1	62	marcus.erl	`/*`
2			`* fs/cifs/ioctl.c`
3			`*`
4			`* vfs operations that deal with io control`
5			`*`
6			`* Copyright (C) International Business Machines Corp., 2005,2007`
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			`*/`
23
24			`#include <linux/fs.h>`
25			`#include "cifspdu.h"`
26			`#include "cifsglob.h"`
27			`#include "cifsproto.h"`
28			`#include "cifs_debug.h"`
29			`#include "cifsfs.h"`
30
31			`#define CIFS_IOC_CHECKUMOUNT _IO(0xCF, 2)`
32
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 */`
37			`int xid;`
38			`struct cifs_sb_info *cifs_sb;`
39			`#ifdef CONFIG_CIFS_POSIX`
40			`__u64 ExtAttrBits = 0;`
41			`__u64 ExtAttrMask = 0;`
42			`__u64 caps;`
43			`struct cifsTconInfo *tcon;`
44			`struct cifsFileInfo *pSMBFile =`
45			`(struct cifsFileInfo *)filep->private_data;`
46			`#endif /* CONFIG_CIFS_POSIX */`
47
48			`xid = GetXid();`
49
50			`cFYI(1, ("ioctl file %p cmd %u arg %lu", filep, command, arg));`
51
52			`cifs_sb = CIFS_SB(inode->i_sb);`
53
54			`#ifdef CONFIG_CIFS_POSIX`
55			`tcon = cifs_sb->tcon;`
56			`if (tcon)`
57			`caps = le64_to_cpu(tcon->fsUnixInfo.Capability);`
58			`else {`
59			`rc = -EIO;`
60			`FreeXid(xid);`
61			`return -EIO;`
62			`}`
63			`#endif /* CONFIG_CIFS_POSIX */`
64
65			`switch (command) {`
66			`case CIFS_IOC_CHECKUMOUNT:`
67			`cFYI(1, ("User unmount attempted"));`
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`
76			`case FS_IOC_GETFLAGS:`
77			`if (CIFS_UNIX_EXTATTR_CAP & caps) {`
78			`if (pSMBFile == NULL)`
79			`break;`
80			`rc = CIFSGetExtAttr(xid, tcon, pSMBFile->netfid,`
81			`&ExtAttrBits, &ExtAttrMask);`
82			`if (rc == 0)`
83			`rc = put_user(ExtAttrBits &`
84			`FS_FL_USER_VISIBLE,`
85			`(int __user *)arg);`
86			`}`
87			`break;`
88
89			`case FS_IOC_SETFLAGS:`
90			`if (CIFS_UNIX_EXTATTR_CAP & caps) {`
91			`if (get_user(ExtAttrBits, (int __user *)arg)) {`
92			`rc = -EFAULT;`
93			`break;`
94			`}`
95			`if (pSMBFile == NULL)`
96			`break;`
97			`/* rc= CIFSGetExtAttr(xid,tcon,pSMBFile->netfid,`
98			`extAttrBits, &ExtAttrMask);*/`
99			`}`
100			`cFYI(1, ("set flags not implemented yet"));`
101			`break;`
102			`#endif /* CONFIG_CIFS_POSIX */`
103			`default:`
104			`cFYI(1, ("unsupported ioctl"));`
105			`break;`
106			`}`
107
108			`FreeXid(xid);`
109			`return rc;`
110			`}`

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[/] [test_project/] [trunk/] [linux_sd_driver/] [fs/] [cifs/] [ioctl.c] - Blame information for rev 78