cregit-Linux how code gets into the kernel

Release 4.11 sound/core/seq/seq_compat.c

Directory: sound/core/seq
/*
 *   32bit -> 64bit ioctl wrapper for sequencer 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 seq.c */

#include <linux/compat.h>
#include <linux/slab.h>


struct snd_seq_port_info32 {
	
struct snd_seq_addr addr;	/* client/port numbers */
	
char name[64];			/* port name */

	
u32 capability;	/* port capability bits */
	
u32 type;		/* port type bits */
	
s32 midi_channels;		/* channels per MIDI port */
	
s32 midi_voices;		/* voices per MIDI port */
	
s32 synth_voices;		/* voices per SYNTH port */

	
s32 read_use;			/* R/O: subscribers for output (from this port) */
	
s32 write_use;			/* R/O: subscribers for input (to this port) */

	
u32 kernel;			/* reserved for kernel use (must be NULL) */
	
u32 flags;		/* misc. conditioning */
	
unsigned char time_queue;	/* queue # for timestamping */
	
char reserved[59];		/* for future use */
};


static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd, struct snd_seq_port_info32 __user *data32) { int err = -EFAULT; struct snd_seq_port_info *data; data = kmalloc(sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; if (copy_from_user(data, data32, sizeof(*data32)) || get_user(data->flags, &data32->flags) || get_user(data->time_queue, &data32->time_queue)) goto error; data->kernel = NULL; err = snd_seq_kernel_client_ctl(client->number, cmd, data); if (err < 0) goto error; if (copy_to_user(data32, data, sizeof(*data32)) || put_user(data->flags, &data32->flags) || put_user(data->time_queue, &data32->time_queue)) err = -EFAULT; error: kfree(data); return err; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela13877.53%116.67%
Nicolas Boichat2011.24%116.67%
Takashi Sakamoto126.74%233.33%
Takashi Iwai52.81%116.67%
Li Zefan31.69%116.67%
Total178100.00%6100.00%

/* */ enum { SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32), SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32), SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32), SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32), SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32), };
static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) { struct snd_seq_client *client = file->private_data; void __user *argp = compat_ptr(arg); if (snd_BUG_ON(!client)) return -ENXIO; switch (cmd) { case SNDRV_SEQ_IOCTL_PVERSION: case SNDRV_SEQ_IOCTL_CLIENT_ID: case SNDRV_SEQ_IOCTL_SYSTEM_INFO: case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO: case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO: case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT: case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT: case SNDRV_SEQ_IOCTL_CREATE_QUEUE: case SNDRV_SEQ_IOCTL_DELETE_QUEUE: case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO: case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO: case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE: case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS: case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO: case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO: case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER: case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER: case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT: case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT: case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL: case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL: case SNDRV_SEQ_IOCTL_REMOVE_EVENTS: case SNDRV_SEQ_IOCTL_QUERY_SUBS: case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION: case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT: case SNDRV_SEQ_IOCTL_RUNNING_MODE: return snd_seq_ioctl(file, cmd, arg); case SNDRV_SEQ_IOCTL_CREATE_PORT32: return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp); case SNDRV_SEQ_IOCTL_DELETE_PORT32: return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp); case SNDRV_SEQ_IOCTL_GET_PORT_INFO32: return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp); case SNDRV_SEQ_IOCTL_SET_PORT_INFO32: return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp); case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32: return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp); } return -ENOIOCTLCMD; }

Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela19290.14%120.00%
Takashi Iwai125.63%240.00%
Takashi Sakamoto94.23%240.00%
Total213100.00%5100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Jaroslav Kysela45786.55%112.50%
Takashi Iwai244.55%225.00%
Takashi Sakamoto213.98%225.00%
Nicolas Boichat203.79%112.50%
Tejun Heo30.57%112.50%
Li Zefan30.57%112.50%
Total528100.00%8100.00%
Directory: sound/core/seq
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.