}
#ifdef CONFIG_BLOCK
-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 */
- unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
- unsigned char mx_sb_len; /* [i] max length to write to sbp */
- unsigned short iovec_count; /* [i] 0 implies no scatter gather */
- compat_uint_t dxfer_len; /* [i] byte count of data transfer */
- compat_uint_t dxferp; /* [i], [*io] points to data transfer memory
- or scatter gather list */
- compat_uptr_t cmdp; /* [i], [*i] points to command to perform */
- compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */
- compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
- compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */
- compat_int_t pack_id; /* [i->o] unused internally (normally) */
- compat_uptr_t usr_ptr; /* [i->o] unused internally */
- unsigned char status; /* [o] scsi status */
- unsigned char masked_status; /* [o] shifted, masked scsi status */
- unsigned char msg_status; /* [o] messaging level data (optional) */
- unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
- unsigned short host_status; /* [o] errors from host adapter */
- unsigned short driver_status; /* [o] errors from software driver */
- compat_int_t resid; /* [o] dxfer_len - actual_transferred */
- compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */
- compat_uint_t info; /* [o] auxiliary information */
-} sg_io_hdr32_t; /* 64 bytes long (on sparc32) */
-
-typedef struct sg_iovec32 {
- compat_uint_t iov_base;
- compat_uint_t iov_len;
-} sg_iovec32_t;
-
-static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
-{
- sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
- sg_iovec32_t __user *iov32 = dxferp;
- int i;
-
- for (i = 0; i < iovec_count; i++) {
- u32 base, len;
-
- if (get_user(base, &iov32[i].iov_base) ||
- get_user(len, &iov32[i].iov_len) ||
- put_user(compat_ptr(base), &iov[i].iov_base) ||
- put_user(len, &iov[i].iov_len))
- return -EFAULT;
- }
-
- if (put_user(iov, &sgio->dxferp))
- return -EFAULT;
- return 0;
-}
-
-static int sg_ioctl_trans(struct file *file, unsigned int cmd,
- sg_io_hdr32_t __user *sgio32)
-{
- sg_io_hdr_t __user *sgio;
- u16 iovec_count;
- u32 data;
- void __user *dxferp;
- int err;
- int interface_id;
-
- if (get_user(interface_id, &sgio32->interface_id))
- return -EFAULT;
- if (interface_id != 'S')
- return do_ioctl(file, cmd, (unsigned long)sgio32);
-
- if (get_user(iovec_count, &sgio32->iovec_count))
- return -EFAULT;
-
- {
- void __user *top = compat_alloc_user_space(0);
- void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) +
- (iovec_count * sizeof(sg_iovec_t)));
- if (new > top)
- return -EINVAL;
-
- sgio = new;
- }
-
- /* Ok, now construct. */
- if (copy_in_user(&sgio->interface_id, &sgio32->interface_id,
- (2 * sizeof(int)) +
- (2 * sizeof(unsigned char)) +
- (1 * sizeof(unsigned short)) +
- (1 * sizeof(unsigned int))))
- return -EFAULT;
-
- if (get_user(data, &sgio32->dxferp))
- return -EFAULT;
- dxferp = compat_ptr(data);
- if (iovec_count) {
- if (sg_build_iovec(sgio, dxferp, iovec_count))
- return -EFAULT;
- } else {
- if (put_user(dxferp, &sgio->dxferp))
- return -EFAULT;
- }
-
- {
- unsigned char __user *cmdp;
- unsigned char __user *sbp;
-
- if (get_user(data, &sgio32->cmdp))
- return -EFAULT;
- cmdp = compat_ptr(data);
-
- if (get_user(data, &sgio32->sbp))
- return -EFAULT;
- sbp = compat_ptr(data);
-
- if (put_user(cmdp, &sgio->cmdp) ||
- put_user(sbp, &sgio->sbp))
- return -EFAULT;
- }
-
- if (copy_in_user(&sgio->timeout, &sgio32->timeout,
- 3 * sizeof(int)))
- return -EFAULT;
-
- if (get_user(data, &sgio32->usr_ptr))
- return -EFAULT;
- if (put_user(compat_ptr(data), &sgio->usr_ptr))
- return -EFAULT;
-
- err = do_ioctl(file, cmd, (unsigned long) sgio);
-
- if (err >= 0) {
- void __user *datap;
-
- if (copy_in_user(&sgio32->pack_id, &sgio->pack_id,
- sizeof(int)) ||
- get_user(datap, &sgio->usr_ptr) ||
- put_user((u32)(unsigned long)datap,
- &sgio32->usr_ptr) ||
- copy_in_user(&sgio32->status, &sgio->status,
- (4 * sizeof(unsigned char)) +
- (2 * sizeof(unsigned short)) +
- (3 * sizeof(int))))
- err = -EFAULT;
- }
-
- return err;
-}
-
struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
char req_state;
char orphan;
#endif
#ifdef CONFIG_BLOCK
/* SG stuff */
+COMPATIBLE_IOCTL(SG_IO)
COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
COMPATIBLE_IOCTL(SG_EMULATED_HOST)
case PPPIOCSACTIVE32:
return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
#ifdef CONFIG_BLOCK
- case SG_IO:
- return sg_ioctl_trans(file, cmd, argp);
case SG_GET_REQUEST_TABLE:
return sg_grt_trans(file, cmd, argp);
#endif
git.samba.org / sfrench / cifs-2.6.git / blobdiff