2 * Copyright (c) 2004-2005 Silicon Graphics, Inc.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 #include <linux/config.h>
19 #include <linux/compat.h>
20 #include <linux/init.h>
21 #include <linux/ioctl.h>
22 #include <linux/syscalls.h>
23 #include <linux/types.h>
25 #include <asm/uaccess.h>
27 #include "xfs_types.h"
30 #include "xfs_vnode.h"
31 #include "xfs_dfrag.h"
33 #define _NATIVE_IOC(cmd, type) \
34 _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
36 #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
37 #define BROKEN_X86_ALIGNMENT
38 /* on ia32 l_start is on a 32-bit boundary */
39 typedef struct xfs_flock64_32 {
42 __s64 l_start __attribute__((packed));
43 /* len == 0 means until end of file */
44 __s64 l_len __attribute__((packed));
47 __s32 l_pad[4]; /* reserve area */
50 #define XFS_IOC_ALLOCSP_32 _IOW ('X', 10, struct xfs_flock64_32)
51 #define XFS_IOC_FREESP_32 _IOW ('X', 11, struct xfs_flock64_32)
52 #define XFS_IOC_ALLOCSP64_32 _IOW ('X', 36, struct xfs_flock64_32)
53 #define XFS_IOC_FREESP64_32 _IOW ('X', 37, struct xfs_flock64_32)
54 #define XFS_IOC_RESVSP_32 _IOW ('X', 40, struct xfs_flock64_32)
55 #define XFS_IOC_UNRESVSP_32 _IOW ('X', 41, struct xfs_flock64_32)
56 #define XFS_IOC_RESVSP64_32 _IOW ('X', 42, struct xfs_flock64_32)
57 #define XFS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct xfs_flock64_32)
59 /* just account for different alignment */
64 xfs_flock64_32_t __user *p32 = (void __user *)arg;
65 xfs_flock64_t __user *p = compat_alloc_user_space(sizeof(*p));
67 if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
68 copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
69 copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
70 copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
71 copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
72 copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
73 copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
76 return (unsigned long)p;
81 typedef struct xfs_fsop_bulkreq32 {
82 compat_uptr_t lastip; /* last inode # pointer */
83 __s32 icount; /* count of entries in buffer */
84 compat_uptr_t ubuffer; /* user buffer for inode desc. */
85 __s32 ocount; /* output count pointer */
86 } xfs_fsop_bulkreq32_t;
92 xfs_fsop_bulkreq32_t __user *p32 = (void __user *)arg;
93 xfs_fsop_bulkreq_t __user *p = compat_alloc_user_space(sizeof(*p));
96 if (get_user(addr, &p32->lastip) ||
97 put_user(compat_ptr(addr), &p->lastip) ||
98 copy_in_user(&p->icount, &p32->icount, sizeof(s32)) ||
99 get_user(addr, &p32->ubuffer) ||
100 put_user(compat_ptr(addr), &p->ubuffer) ||
101 get_user(addr, &p32->ocount) ||
102 put_user(compat_ptr(addr), &p->ocount))
105 return (unsigned long)p;
110 __linvfs_compat_ioctl(int mode, struct file *f, unsigned cmd, unsigned long arg)
113 struct inode *inode = f->f_dentry->d_inode;
114 vnode_t *vp = LINVFS_GET_VP(inode);
117 case XFS_IOC_DIOINFO:
118 case XFS_IOC_FSGEOMETRY_V1:
119 case XFS_IOC_FSGEOMETRY:
120 case XFS_IOC_GETVERSION:
121 case XFS_IOC_GETXFLAGS:
122 case XFS_IOC_SETXFLAGS:
123 case XFS_IOC_FSGETXATTR:
124 case XFS_IOC_FSSETXATTR:
125 case XFS_IOC_FSGETXATTRA:
126 case XFS_IOC_FSSETDM:
127 case XFS_IOC_GETBMAP:
128 case XFS_IOC_GETBMAPA:
129 case XFS_IOC_GETBMAPX:
131 case XFS_IOC_FD_TO_HANDLE:
132 case XFS_IOC_PATH_TO_HANDLE:
133 case XFS_IOC_PATH_TO_FSHANDLE:
134 case XFS_IOC_OPEN_BY_HANDLE:
135 case XFS_IOC_FSSETDM_BY_HANDLE:
136 case XFS_IOC_READLINK_BY_HANDLE:
137 case XFS_IOC_ATTRLIST_BY_HANDLE:
138 case XFS_IOC_ATTRMULTI_BY_HANDLE:
140 case XFS_IOC_FSCOUNTS:
141 case XFS_IOC_SET_RESBLKS:
142 case XFS_IOC_GET_RESBLKS:
143 case XFS_IOC_FSGROWFSDATA:
144 case XFS_IOC_FSGROWFSLOG:
145 case XFS_IOC_FSGROWFSRT:
148 case XFS_IOC_GOINGDOWN:
149 case XFS_IOC_ERROR_INJECTION:
150 case XFS_IOC_ERROR_CLEARALL:
153 #ifdef BROKEN_X86_ALIGNMENT
154 /* xfs_flock_t has wrong u32 vs u64 alignment */
155 case XFS_IOC_ALLOCSP_32:
156 case XFS_IOC_FREESP_32:
157 case XFS_IOC_ALLOCSP64_32:
158 case XFS_IOC_FREESP64_32:
159 case XFS_IOC_RESVSP_32:
160 case XFS_IOC_UNRESVSP_32:
161 case XFS_IOC_RESVSP64_32:
162 case XFS_IOC_UNRESVSP64_32:
163 arg = xfs_ioctl32_flock(arg);
164 cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
167 #else /* These are handled fine if no alignment issues */
168 case XFS_IOC_ALLOCSP:
171 case XFS_IOC_UNRESVSP:
172 case XFS_IOC_ALLOCSP64:
173 case XFS_IOC_FREESP64:
174 case XFS_IOC_RESVSP64:
175 case XFS_IOC_UNRESVSP64:
178 /* xfs_bstat_t still has wrong u32 vs u64 alignment */
179 case XFS_IOC_SWAPEXT:
182 case XFS_IOC_FSBULKSTAT_SINGLE:
183 case XFS_IOC_FSBULKSTAT:
184 case XFS_IOC_FSINUMBERS:
185 arg = xfs_ioctl32_bulkstat(arg);
192 VOP_IOCTL(vp, inode, f, mode, cmd, (void __user *)arg, error);
204 return __linvfs_compat_ioctl(0, f, cmd, arg);
208 linvfs_compat_invis_ioctl(
213 return __linvfs_compat_ioctl(IO_INVIS, f, cmd, arg);