diff options
| -rw-r--r-- | block/compat_ioctl.c | 70 | ||||
| -rw-r--r-- | fs/compat_ioctl.c | 60 |
2 files changed, 70 insertions, 60 deletions
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c index 219b7e76e8ad..5c6dafaad938 100644 --- a/block/compat_ioctl.c +++ b/block/compat_ioctl.c @@ -36,6 +36,62 @@ static int compat_put_u64(unsigned long arg, u64 val) return put_user(val, (compat_u64 __user *)compat_ptr(arg)); } +struct compat_hd_geometry { + unsigned char heads; + unsigned char sectors; + unsigned short cylinders; + u32 start; +}; + +static int compat_hdio_getgeo(struct gendisk *disk, struct block_device *bdev, + struct compat_hd_geometry __user *ugeo) +{ + struct hd_geometry geo; + int ret; + + if (!ugeo) + return -EINVAL; + if (!disk->fops->getgeo) + return -ENOTTY; + + /* + * We need to set the startsect first, the driver may + * want to override it. + */ + geo.start = get_start_sect(bdev); + ret = disk->fops->getgeo(bdev, &geo); + if (ret) + return ret; + + ret = copy_to_user(ugeo, &geo, 4); + ret |= __put_user(geo.start, &ugeo->start); + if (ret) + ret = -EFAULT; + + return ret; +} + +static int compat_hdio_ioctl(struct inode *inode, struct file *file, + struct gendisk *disk, unsigned int cmd, unsigned long arg) +{ + mm_segment_t old_fs = get_fs(); + unsigned long kval; + unsigned int __user *uvp; + int error; + + set_fs(KERNEL_DS); + error = blkdev_driver_ioctl(inode, file, disk, + cmd, (unsigned long)(&kval)); + set_fs(old_fs); + + if (error == 0) { + uvp = compat_ptr(arg); + if (put_user(kval, uvp)) + error = -EFAULT; + } + return error; +} + #define BLKBSZGET_32 _IOR(0x12, 112, int) #define BLKBSZSET_32 _IOW(0x12, 113, int) #define BLKGETSIZE64_32 _IOR(0x12, 114, int) @@ -93,6 +149,18 @@ static int compat_blkdev_driver_ioctl(struct inode *inode, struct file *file, int ret; switch (arg) { + case HDIO_GET_UNMASKINTR: + case HDIO_GET_MULTCOUNT: + case HDIO_GET_KEEPSETTINGS: + case HDIO_GET_32BIT: + case HDIO_GET_NOWERR: + case HDIO_GET_DMA: + case HDIO_GET_NICE: + case HDIO_GET_WCACHE: + case HDIO_GET_ACOUSTIC: + case HDIO_GET_ADDRESS: + case HDIO_GET_BUSSTATE: + return compat_hdio_ioctl(inode, file, disk, cmd, arg); /* * No handler required for the ones below, we just need to * convert arg to a 64 bit pointer. @@ -266,6 +334,8 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) struct gendisk *disk = bdev->bd_disk; switch (cmd) { + case HDIO_GETGEO: + return compat_hdio_getgeo(disk, bdev, compat_ptr(arg)); case BLKFLSBUF: case BLKROSET: /* diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 71065603a581..e6a94714b1b0 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -21,7 +21,6 @@ #include <linux/if.h> #include <linux/if_bridge.h> #include <linux/slab.h> -#include <linux/hdreg.h> #include <linux/raid/md.h> #include <linux/kd.h> #include <linux/dirent.h> @@ -667,53 +666,6 @@ out: #endif #ifdef CONFIG_BLOCK -struct hd_geometry32 { - unsigned char heads; - unsigned char sectors; - unsigned short cylinders; - u32 start; -}; - -static int hdio_getgeo(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - mm_segment_t old_fs = get_fs(); - struct hd_geometry geo; - struct hd_geometry32 __user *ugeo; - int err; - - set_fs (KERNEL_DS); - err = sys_ioctl(fd, HDIO_GETGEO, (unsigned long)&geo); - set_fs (old_fs); - ugeo = compat_ptr(arg); - if (!err) { - err = copy_to_user (ugeo, &geo, 4); - err |= __put_user (geo.start, &ugeo->start); - if (err) - err = -EFAULT; - } - return err; -} - -static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg) -{ - mm_segment_t old_fs = get_fs(); - unsigned long kval; - unsigned int __user *uvp; - int error; - - set_fs(KERNEL_DS); - error = sys_ioctl(fd, cmd, (long)&kval); - set_fs(old_fs); - - if(error == 0) { - uvp = compat_ptr(arg); - if(put_user(kval, uvp)) - error = -EFAULT; - } - return error; -} - - typedef struct sg_io_hdr32 { compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */ compat_int_t dxfer_direction; /* [i] data transfer direction */ @@ -3208,19 +3160,7 @@ HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp) HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns) #endif #ifdef CONFIG_BLOCK -HANDLE_IOCTL(HDIO_GETGEO, hdio_getgeo) HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_MULTCOUNT, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_32BIT, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_NOWERR, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_DMA, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_NICE, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_WCACHE, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_ACOUSTIC, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_ADDRESS, hdio_ioctl_trans) -HANDLE_IOCTL(HDIO_GET_BUSSTATE, hdio_ioctl_trans) HANDLE_IOCTL(FDSETPRM32, fd_ioctl_trans) HANDLE_IOCTL(FDDEFPRM32, fd_ioctl_trans) HANDLE_IOCTL(FDGETPRM32, fd_ioctl_trans) |