static irqreturn_t do_hpsa_intr_msi(int irq, void *dev_id);
static int hpsa_ioctl(struct scsi_device *dev, unsigned int cmd,
void __user *arg);
+static int hpsa_passthru_ioctl(struct ctlr_info *h,
+ IOCTL_Command_struct *iocommand);
+static int hpsa_big_passthru_ioctl(struct ctlr_info *h,
+ BIG_IOCTL_Command_struct *ioc);
#ifdef CONFIG_COMPAT
static int hpsa_compat_ioctl(struct scsi_device *dev, unsigned int cmd,
static int hpsa_ioctl32_passthru(struct scsi_device *dev, unsigned int cmd,
void __user *arg)
{
- IOCTL32_Command_struct __user *arg32 =
- (IOCTL32_Command_struct __user *) arg;
+ struct ctlr_info *h = sdev_to_hba(dev);
+ IOCTL32_Command_struct __user *arg32 = arg;
IOCTL_Command_struct arg64;
- IOCTL_Command_struct __user *p = compat_alloc_user_space(sizeof(arg64));
int err;
u32 cp;
- memset(&arg64, 0, sizeof(arg64));
- err = 0;
- err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
- sizeof(arg64.LUN_info));
- err |= copy_from_user(&arg64.Request, &arg32->Request,
- sizeof(arg64.Request));
- err |= copy_from_user(&arg64.error_info, &arg32->error_info,
- sizeof(arg64.error_info));
- err |= get_user(arg64.buf_size, &arg32->buf_size);
- err |= get_user(cp, &arg32->buf);
- arg64.buf = compat_ptr(cp);
- err |= copy_to_user(p, &arg64, sizeof(arg64));
+ if (!arg)
+ return -EINVAL;
- if (err)
+ memset(&arg64, 0, sizeof(arg64));
+ if (copy_from_user(&arg64, arg32, offsetof(IOCTL_Command_struct, buf)))
+ return -EFAULT;
+ if (get_user(cp, &arg32->buf))
return -EFAULT;
+ arg64.buf = compat_ptr(cp);
- err = hpsa_ioctl(dev, CCISS_PASSTHRU, p);
+ if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
+ return -EAGAIN;
+ err = hpsa_passthru_ioctl(h, &arg64);
+ atomic_inc(&h->passthru_cmds_avail);
if (err)
return err;
- err |= copy_in_user(&arg32->error_info, &p->error_info,
- sizeof(arg32->error_info));
- if (err)
+ if (copy_to_user(&arg32->error_info, &arg64.error_info,
+ sizeof(arg32->error_info)))
return -EFAULT;
- return err;
+ return 0;
}
static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
unsigned int cmd, void __user *arg)
{
- BIG_IOCTL32_Command_struct __user *arg32 =
- (BIG_IOCTL32_Command_struct __user *) arg;
+ struct ctlr_info *h = sdev_to_hba(dev);
+ BIG_IOCTL32_Command_struct __user *arg32 = arg;
BIG_IOCTL_Command_struct arg64;
- BIG_IOCTL_Command_struct __user *p =
- compat_alloc_user_space(sizeof(arg64));
int err;
u32 cp;
+ if (!arg)
+ return -EINVAL;
memset(&arg64, 0, sizeof(arg64));
- err = 0;
- err |= copy_from_user(&arg64.LUN_info, &arg32->LUN_info,
- sizeof(arg64.LUN_info));
- err |= copy_from_user(&arg64.Request, &arg32->Request,
- sizeof(arg64.Request));
- err |= copy_from_user(&arg64.error_info, &arg32->error_info,
- sizeof(arg64.error_info));
- err |= get_user(arg64.buf_size, &arg32->buf_size);
- err |= get_user(arg64.malloc_size, &arg32->malloc_size);
- err |= get_user(cp, &arg32->buf);
- arg64.buf = compat_ptr(cp);
- err |= copy_to_user(p, &arg64, sizeof(arg64));
-
- if (err)
+ if (copy_from_user(&arg64, arg32,
+ offsetof(BIG_IOCTL32_Command_struct, buf)))
+ return -EFAULT;
+ if (get_user(cp, &arg32->buf))
return -EFAULT;
+ arg64.buf = compat_ptr(cp);
- err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, p);
+ if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
+ return -EAGAIN;
+ err = hpsa_big_passthru_ioctl(h, &arg64);
+ atomic_inc(&h->passthru_cmds_avail);
if (err)
return err;
- err |= copy_in_user(&arg32->error_info, &p->error_info,
- sizeof(arg32->error_info));
- if (err)
+ if (copy_to_user(&arg32->error_info, &arg64.error_info,
+ sizeof(arg32->error_info)))
return -EFAULT;
- return err;
+ return 0;
}
static int hpsa_compat_ioctl(struct scsi_device *dev, unsigned int cmd,
return 0;
}
-static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
+static int hpsa_passthru_ioctl(struct ctlr_info *h,
+ IOCTL_Command_struct *iocommand)
{
- IOCTL_Command_struct iocommand;
struct CommandList *c;
char *buff = NULL;
u64 temp64;
int rc = 0;
- if (!argp)
- return -EINVAL;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
- if (copy_from_user(&iocommand, argp, sizeof(iocommand)))
- return -EFAULT;
- if ((iocommand.buf_size < 1) &&
- (iocommand.Request.Type.Direction != XFER_NONE)) {
+ if ((iocommand->buf_size < 1) &&
+ (iocommand->Request.Type.Direction != XFER_NONE)) {
return -EINVAL;
}
- if (iocommand.buf_size > 0) {
- buff = kmalloc(iocommand.buf_size, GFP_KERNEL);
+ if (iocommand->buf_size > 0) {
+ buff = kmalloc(iocommand->buf_size, GFP_KERNEL);
if (buff == NULL)
return -ENOMEM;
- if (iocommand.Request.Type.Direction & XFER_WRITE) {
+ if (iocommand->Request.Type.Direction & XFER_WRITE) {
/* Copy the data into the buffer we created */
- if (copy_from_user(buff, iocommand.buf,
- iocommand.buf_size)) {
+ if (copy_from_user(buff, iocommand->buf,
+ iocommand->buf_size)) {
rc = -EFAULT;
goto out_kfree;
}
} else {
- memset(buff, 0, iocommand.buf_size);
+ memset(buff, 0, iocommand->buf_size);
}
}
c = cmd_alloc(h);
c->scsi_cmd = SCSI_CMD_BUSY;
/* Fill in Command Header */
c->Header.ReplyQueue = 0; /* unused in simple mode */
- if (iocommand.buf_size > 0) { /* buffer to fill */
+ if (iocommand->buf_size > 0) { /* buffer to fill */
c->Header.SGList = 1;
c->Header.SGTotal = cpu_to_le16(1);
} else { /* no buffers to fill */
c->Header.SGList = 0;
c->Header.SGTotal = cpu_to_le16(0);
}
- memcpy(&c->Header.LUN, &iocommand.LUN_info, sizeof(c->Header.LUN));
+ memcpy(&c->Header.LUN, &iocommand->LUN_info, sizeof(c->Header.LUN));
/* Fill in Request block */
- memcpy(&c->Request, &iocommand.Request,
+ memcpy(&c->Request, &iocommand->Request,
sizeof(c->Request));
/* Fill in the scatter gather information */
- if (iocommand.buf_size > 0) {
+ if (iocommand->buf_size > 0) {
temp64 = dma_map_single(&h->pdev->dev, buff,
- iocommand.buf_size, DMA_BIDIRECTIONAL);
+ iocommand->buf_size, DMA_BIDIRECTIONAL);
if (dma_mapping_error(&h->pdev->dev, (dma_addr_t) temp64)) {
c->SG[0].Addr = cpu_to_le64(0);
c->SG[0].Len = cpu_to_le32(0);
goto out;
}
c->SG[0].Addr = cpu_to_le64(temp64);
- c->SG[0].Len = cpu_to_le32(iocommand.buf_size);
+ c->SG[0].Len = cpu_to_le32(iocommand->buf_size);
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
}
rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
NO_TIMEOUT);
- if (iocommand.buf_size > 0)
+ if (iocommand->buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
if (rc) {
}
/* Copy the error information out */
- memcpy(&iocommand.error_info, c->err_info,
- sizeof(iocommand.error_info));
- if (copy_to_user(argp, &iocommand, sizeof(iocommand))) {
- rc = -EFAULT;
- goto out;
- }
- if ((iocommand.Request.Type.Direction & XFER_READ) &&
- iocommand.buf_size > 0) {
+ memcpy(&iocommand->error_info, c->err_info,
+ sizeof(iocommand->error_info));
+ if ((iocommand->Request.Type.Direction & XFER_READ) &&
+ iocommand->buf_size > 0) {
/* Copy the data out of the buffer we created */
- if (copy_to_user(iocommand.buf, buff, iocommand.buf_size)) {
+ if (copy_to_user(iocommand->buf, buff, iocommand->buf_size)) {
rc = -EFAULT;
goto out;
}
return rc;
}
-static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
+static int hpsa_big_passthru_ioctl(struct ctlr_info *h,
+ BIG_IOCTL_Command_struct *ioc)
{
- BIG_IOCTL_Command_struct *ioc;
struct CommandList *c;
unsigned char **buff = NULL;
int *buff_size = NULL;
u32 sz;
BYTE __user *data_ptr;
- if (!argp)
- return -EINVAL;
if (!capable(CAP_SYS_RAWIO))
return -EPERM;
- ioc = vmemdup_user(argp, sizeof(*ioc));
- if (IS_ERR(ioc)) {
- status = PTR_ERR(ioc);
- goto cleanup1;
- }
+
if ((ioc->buf_size < 1) &&
- (ioc->Request.Type.Direction != XFER_NONE)) {
- status = -EINVAL;
- goto cleanup1;
- }
+ (ioc->Request.Type.Direction != XFER_NONE))
+ return -EINVAL;
/* Check kmalloc limits using all SGs */
- if (ioc->malloc_size > MAX_KMALLOC_SIZE) {
- status = -EINVAL;
- goto cleanup1;
- }
- if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD) {
- status = -EINVAL;
- goto cleanup1;
- }
+ if (ioc->malloc_size > MAX_KMALLOC_SIZE)
+ return -EINVAL;
+ if (ioc->buf_size > ioc->malloc_size * SG_ENTRIES_IN_CMD)
+ return -EINVAL;
buff = kcalloc(SG_ENTRIES_IN_CMD, sizeof(char *), GFP_KERNEL);
if (!buff) {
status = -ENOMEM;
/* Copy the error information out */
memcpy(&ioc->error_info, c->err_info, sizeof(ioc->error_info));
- if (copy_to_user(argp, ioc, sizeof(*ioc))) {
- status = -EFAULT;
- goto cleanup0;
- }
if ((ioc->Request.Type.Direction & XFER_READ) && ioc->buf_size > 0) {
int i;
kfree(buff);
}
kfree(buff_size);
- kvfree(ioc);
return status;
}
* ioctl
*/
static int hpsa_ioctl(struct scsi_device *dev, unsigned int cmd,
- void __user *arg)
+ void __user *argp)
{
- struct ctlr_info *h;
- void __user *argp = (void __user *)arg;
+ struct ctlr_info *h = sdev_to_hba(dev);
int rc;
- h = sdev_to_hba(dev);
-
switch (cmd) {
case CCISS_DEREGDISK:
case CCISS_REGNEWDISK:
return hpsa_getpciinfo_ioctl(h, argp);
case CCISS_GETDRIVVER:
return hpsa_getdrivver_ioctl(h, argp);
- case CCISS_PASSTHRU:
+ case CCISS_PASSTHRU: {
+ IOCTL_Command_struct iocommand;
+
+ if (!argp)
+ return -EINVAL;
+ if (copy_from_user(&iocommand, argp, sizeof(iocommand)))
+ return -EFAULT;
if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
return -EAGAIN;
- rc = hpsa_passthru_ioctl(h, argp);
+ rc = hpsa_passthru_ioctl(h, &iocommand);
atomic_inc(&h->passthru_cmds_avail);
+ if (!rc && copy_to_user(argp, &iocommand, sizeof(iocommand)))
+ rc = -EFAULT;
return rc;
- case CCISS_BIG_PASSTHRU:
+ }
+ case CCISS_BIG_PASSTHRU: {
+ BIG_IOCTL_Command_struct ioc;
+ if (!argp)
+ return -EINVAL;
+ if (copy_from_user(&ioc, argp, sizeof(ioc)))
+ return -EFAULT;
if (atomic_dec_if_positive(&h->passthru_cmds_avail) < 0)
return -EAGAIN;
- rc = hpsa_big_passthru_ioctl(h, argp);
+ rc = hpsa_big_passthru_ioctl(h, &ioc);
atomic_inc(&h->passthru_cmds_avail);
+ if (!rc && copy_to_user(argp, &ioc, sizeof(ioc)))
+ rc = -EFAULT;
return rc;
+ }
default:
return -ENOTTY;
}
projects / linux-2.6-microblaze.git / blobdiff