// SPDX-License-Identifier: GPL-2.0-or-later/* *   32bit -> 64bit ioctl wrapper for sequencer API *   Copyright (c) by Takashi Iwai <tiwai@suse.de> */ /* 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;	struct snd_seq_port_info *data __free(kfree) =		kmalloc_obj(*data); 	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))		return -EFAULT;	data->kernel = NULL; 	err = snd_seq_kernel_client_ctl(client->number, cmd, data);	if (err < 0)		return err; 	if (copy_to_user(data32, data, sizeof(*data32)) ||	    put_user(data->flags, &data32->flags) ||	    put_user(data->time_queue, &data32->time_queue))		return -EFAULT; 	return err;}   /* */ 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_USER_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_GET_CLIENT_UMP_INFO:	case SNDRV_SEQ_IOCTL_SET_CLIENT_UMP_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;}