Release 4.11 sound/core/rawmidi_compat.c
/*
* 32bit -> 64bit ioctl wrapper for raw MIDI API
* Copyright (c) by Takashi Iwai <tiwai@suse.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* This file included from rawmidi.c */
#include <linux/compat.h>
struct snd_rawmidi_params32 {
s32 stream;
u32 buffer_size;
u32 avail_min;
unsigned int no_active_sensing; /* avoid bit-field */
unsigned char reserved[16];
} __attribute__((packed));
static int snd_rawmidi_ioctl_params_compat(struct snd_rawmidi_file *rfile,
struct snd_rawmidi_params32 __user *src)
{
struct snd_rawmidi_params params;
unsigned int val;
if (rfile->output == NULL)
return -EINVAL;
if (get_user(params.stream, &src->stream) ||
get_user(params.buffer_size, &src->buffer_size) ||
get_user(params.avail_min, &src->avail_min) ||
get_user(val, &src->no_active_sensing))
return -EFAULT;
params.no_active_sensing = val;
switch (params.stream) {
case SNDRV_RAWMIDI_STREAM_OUTPUT:
return snd_rawmidi_output_params(rfile->output, ¶ms);
case SNDRV_RAWMIDI_STREAM_INPUT:
return snd_rawmidi_input_params(rfile->input, ¶ms);
}
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jaroslav Kysela | 130 | 96.30% | 1 | 50.00% |
| Takashi Iwai | 5 | 3.70% | 1 | 50.00% |
| Total | 135 | 100.00% | 2 | 100.00% |
struct snd_rawmidi_status32 {
s32 stream;
struct compat_timespec tstamp;
u32 avail;
u32 xruns;
unsigned char reserved[16];
} __attribute__((packed));
static int snd_rawmidi_ioctl_status_compat(struct snd_rawmidi_file *rfile,
struct snd_rawmidi_status32 __user *src)
{
int err;
struct snd_rawmidi_status status;
if (rfile->output == NULL)
return -EINVAL;
if (get_user(status.stream, &src->stream))
return -EFAULT;
switch (status.stream) {
case SNDRV_RAWMIDI_STREAM_OUTPUT:
err = snd_rawmidi_output_status(rfile->output, &status);
break;
case SNDRV_RAWMIDI_STREAM_INPUT:
err = snd_rawmidi_input_status(rfile->input, &status);
break;
default:
return -EINVAL;
}
if (err < 0)
return err;
if (compat_put_timespec(&status.tstamp, &src->tstamp) ||
put_user(status.avail, &src->avail) ||
put_user(status.xruns, &src->xruns))
return -EFAULT;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jaroslav Kysela | 148 | 96.10% | 1 | 33.33% |
| Takashi Iwai | 6 | 3.90% | 2 | 66.67% |
| Total | 154 | 100.00% | 3 | 100.00% |
#ifdef CONFIG_X86_X32
/* X32 ABI has 64bit timespec and 64bit alignment */
struct snd_rawmidi_status_x32 {
s32 stream;
u32 rsvd; /* alignment */
struct timespec tstamp;
u32 avail;
u32 xruns;
unsigned char reserved[16];
} __attribute__((packed));
#define put_timespec(src, dst) copy_to_user(dst, src, sizeof(*dst))
static int snd_rawmidi_ioctl_status_x32(struct snd_rawmidi_file *rfile,
struct snd_rawmidi_status_x32 __user *src)
{
int err;
struct snd_rawmidi_status status;
if (rfile->output == NULL)
return -EINVAL;
if (get_user(status.stream, &src->stream))
return -EFAULT;
switch (status.stream) {
case SNDRV_RAWMIDI_STREAM_OUTPUT:
err = snd_rawmidi_output_status(rfile->output, &status);
break;
case SNDRV_RAWMIDI_STREAM_INPUT:
err = snd_rawmidi_input_status(rfile->input, &status);
break;
default:
return -EINVAL;
}
if (err < 0)
return err;
if (put_timespec(&status.tstamp, &src->tstamp) ||
put_user(status.avail, &src->avail) ||
put_user(status.xruns, &src->xruns))
return -EFAULT;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Takashi Iwai | 154 | 100.00% | 1 | 100.00% |
| Total | 154 | 100.00% | 1 | 100.00% |
#endif /* CONFIG_X86_X32 */
enum {
SNDRV_RAWMIDI_IOCTL_PARAMS32 = _IOWR('W', 0x10, struct snd_rawmidi_params32),
SNDRV_RAWMIDI_IOCTL_STATUS32 = _IOWR('W', 0x20, struct snd_rawmidi_status32),
#ifdef CONFIG_X86_X32
SNDRV_RAWMIDI_IOCTL_STATUS_X32 = _IOWR('W', 0x20, struct snd_rawmidi_status_x32),
#endif /* CONFIG_X86_X32 */
};
static long snd_rawmidi_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
{
struct snd_rawmidi_file *rfile;
void __user *argp = compat_ptr(arg);
rfile = file->private_data;
switch (cmd) {
case SNDRV_RAWMIDI_IOCTL_PVERSION:
case SNDRV_RAWMIDI_IOCTL_INFO:
case SNDRV_RAWMIDI_IOCTL_DROP:
case SNDRV_RAWMIDI_IOCTL_DRAIN:
return snd_rawmidi_ioctl(file, cmd, (unsigned long)argp);
case SNDRV_RAWMIDI_IOCTL_PARAMS32:
return snd_rawmidi_ioctl_params_compat(rfile, argp);
case SNDRV_RAWMIDI_IOCTL_STATUS32:
return snd_rawmidi_ioctl_status_compat(rfile, argp);
#ifdef CONFIG_X86_X32
case SNDRV_RAWMIDI_IOCTL_STATUS_X32:
return snd_rawmidi_ioctl_status_x32(rfile, argp);
#endif /* CONFIG_X86_X32 */
}
return -ENOIOCTLCMD;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jaroslav Kysela | 96 | 83.48% | 1 | 33.33% |
| Takashi Iwai | 19 | 16.52% | 2 | 66.67% |
| Total | 115 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jaroslav Kysela | 464 | 64.18% | 1 | 25.00% |
| Takashi Iwai | 259 | 35.82% | 3 | 75.00% |
| Total | 723 | 100.00% | 4 | 100.00% |
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