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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * 32bit -> 64bit ioctl wrapper for sequencer API
4 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
5 */
6
7/* This file included from seq.c */
8
9#include <linux/compat.h>
10#include <linux/slab.h>
11
12struct snd_seq_port_info32 {
13 struct snd_seq_addr addr; /* client/port numbers */
14 char name[64]; /* port name */
15
16 u32 capability; /* port capability bits */
17 u32 type; /* port type bits */
18 s32 midi_channels; /* channels per MIDI port */
19 s32 midi_voices; /* voices per MIDI port */
20 s32 synth_voices; /* voices per SYNTH port */
21
22 s32 read_use; /* R/O: subscribers for output (from this port) */
23 s32 write_use; /* R/O: subscribers for input (to this port) */
24
25 u32 kernel; /* reserved for kernel use (must be NULL) */
26 u32 flags; /* misc. conditioning */
27 unsigned char time_queue; /* queue # for timestamping */
28 char reserved[59]; /* for future use */
29};
30
31static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd,
32 struct snd_seq_port_info32 __user *data32)
33{
34 int err = -EFAULT;
35 struct snd_seq_port_info *data;
36
37 data = kmalloc(sizeof(*data), GFP_KERNEL);
38 if (!data)
39 return -ENOMEM;
40
41 if (copy_from_user(data, data32, sizeof(*data32)) ||
42 get_user(data->flags, &data32->flags) ||
43 get_user(data->time_queue, &data32->time_queue))
44 goto error;
45 data->kernel = NULL;
46
47 err = snd_seq_kernel_client_ctl(client->number, cmd, data);
48 if (err < 0)
49 goto error;
50
51 if (copy_to_user(data32, data, sizeof(*data32)) ||
52 put_user(data->flags, &data32->flags) ||
53 put_user(data->time_queue, &data32->time_queue))
54 err = -EFAULT;
55
56 error:
57 kfree(data);
58 return err;
59}
60
61
62
63/*
64 */
65
66enum {
67 SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32),
68 SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32),
69 SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32),
70 SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32),
71 SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32),
72};
73
74static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
75{
76 struct snd_seq_client *client = file->private_data;
77 void __user *argp = compat_ptr(arg);
78
79 if (snd_BUG_ON(!client))
80 return -ENXIO;
81
82 switch (cmd) {
83 case SNDRV_SEQ_IOCTL_PVERSION:
84 case SNDRV_SEQ_IOCTL_CLIENT_ID:
85 case SNDRV_SEQ_IOCTL_SYSTEM_INFO:
86 case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO:
87 case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO:
88 case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT:
89 case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT:
90 case SNDRV_SEQ_IOCTL_CREATE_QUEUE:
91 case SNDRV_SEQ_IOCTL_DELETE_QUEUE:
92 case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO:
93 case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO:
94 case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE:
95 case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS:
96 case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO:
97 case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO:
98 case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER:
99 case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER:
100 case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT:
101 case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT:
102 case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL:
103 case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL:
104 case SNDRV_SEQ_IOCTL_REMOVE_EVENTS:
105 case SNDRV_SEQ_IOCTL_QUERY_SUBS:
106 case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION:
107 case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT:
108 case SNDRV_SEQ_IOCTL_RUNNING_MODE:
109 return snd_seq_ioctl(file, cmd, arg);
110 case SNDRV_SEQ_IOCTL_CREATE_PORT32:
111 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp);
112 case SNDRV_SEQ_IOCTL_DELETE_PORT32:
113 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp);
114 case SNDRV_SEQ_IOCTL_GET_PORT_INFO32:
115 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp);
116 case SNDRV_SEQ_IOCTL_SET_PORT_INFO32:
117 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp);
118 case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32:
119 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp);
120 }
121 return -ENOIOCTLCMD;
122}
1/*
2 * 32bit -> 64bit ioctl wrapper for sequencer API
3 * Copyright (c) by Takashi Iwai <tiwai@suse.de>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 *
19 */
20
21/* This file included from seq.c */
22
23#include <linux/compat.h>
24#include <linux/slab.h>
25
26struct snd_seq_port_info32 {
27 struct snd_seq_addr addr; /* client/port numbers */
28 char name[64]; /* port name */
29
30 u32 capability; /* port capability bits */
31 u32 type; /* port type bits */
32 s32 midi_channels; /* channels per MIDI port */
33 s32 midi_voices; /* voices per MIDI port */
34 s32 synth_voices; /* voices per SYNTH port */
35
36 s32 read_use; /* R/O: subscribers for output (from this port) */
37 s32 write_use; /* R/O: subscribers for input (to this port) */
38
39 u32 kernel; /* reserved for kernel use (must be NULL) */
40 u32 flags; /* misc. conditioning */
41 unsigned char time_queue; /* queue # for timestamping */
42 char reserved[59]; /* for future use */
43};
44
45static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned int cmd,
46 struct snd_seq_port_info32 __user *data32)
47{
48 int err = -EFAULT;
49 struct snd_seq_port_info *data;
50 mm_segment_t fs;
51
52 data = memdup_user(data32, sizeof(*data32));
53 if (IS_ERR(data))
54 return PTR_ERR(data);
55
56 if (get_user(data->flags, &data32->flags) ||
57 get_user(data->time_queue, &data32->time_queue))
58 goto error;
59 data->kernel = NULL;
60
61 fs = snd_enter_user();
62 err = snd_seq_do_ioctl(client, cmd, data);
63 snd_leave_user(fs);
64 if (err < 0)
65 goto error;
66
67 if (copy_to_user(data32, data, sizeof(*data32)) ||
68 put_user(data->flags, &data32->flags) ||
69 put_user(data->time_queue, &data32->time_queue))
70 err = -EFAULT;
71
72 error:
73 kfree(data);
74 return err;
75}
76
77
78
79/*
80 */
81
82enum {
83 SNDRV_SEQ_IOCTL_CREATE_PORT32 = _IOWR('S', 0x20, struct snd_seq_port_info32),
84 SNDRV_SEQ_IOCTL_DELETE_PORT32 = _IOW ('S', 0x21, struct snd_seq_port_info32),
85 SNDRV_SEQ_IOCTL_GET_PORT_INFO32 = _IOWR('S', 0x22, struct snd_seq_port_info32),
86 SNDRV_SEQ_IOCTL_SET_PORT_INFO32 = _IOW ('S', 0x23, struct snd_seq_port_info32),
87 SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32 = _IOWR('S', 0x52, struct snd_seq_port_info32),
88};
89
90static long snd_seq_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
91{
92 struct snd_seq_client *client = file->private_data;
93 void __user *argp = compat_ptr(arg);
94
95 if (snd_BUG_ON(!client))
96 return -ENXIO;
97
98 switch (cmd) {
99 case SNDRV_SEQ_IOCTL_PVERSION:
100 case SNDRV_SEQ_IOCTL_CLIENT_ID:
101 case SNDRV_SEQ_IOCTL_SYSTEM_INFO:
102 case SNDRV_SEQ_IOCTL_GET_CLIENT_INFO:
103 case SNDRV_SEQ_IOCTL_SET_CLIENT_INFO:
104 case SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT:
105 case SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT:
106 case SNDRV_SEQ_IOCTL_CREATE_QUEUE:
107 case SNDRV_SEQ_IOCTL_DELETE_QUEUE:
108 case SNDRV_SEQ_IOCTL_GET_QUEUE_INFO:
109 case SNDRV_SEQ_IOCTL_SET_QUEUE_INFO:
110 case SNDRV_SEQ_IOCTL_GET_NAMED_QUEUE:
111 case SNDRV_SEQ_IOCTL_GET_QUEUE_STATUS:
112 case SNDRV_SEQ_IOCTL_GET_QUEUE_TEMPO:
113 case SNDRV_SEQ_IOCTL_SET_QUEUE_TEMPO:
114 case SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER:
115 case SNDRV_SEQ_IOCTL_SET_QUEUE_TIMER:
116 case SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT:
117 case SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT:
118 case SNDRV_SEQ_IOCTL_GET_CLIENT_POOL:
119 case SNDRV_SEQ_IOCTL_SET_CLIENT_POOL:
120 case SNDRV_SEQ_IOCTL_REMOVE_EVENTS:
121 case SNDRV_SEQ_IOCTL_QUERY_SUBS:
122 case SNDRV_SEQ_IOCTL_GET_SUBSCRIPTION:
123 case SNDRV_SEQ_IOCTL_QUERY_NEXT_CLIENT:
124 case SNDRV_SEQ_IOCTL_RUNNING_MODE:
125 return snd_seq_do_ioctl(client, cmd, argp);
126 case SNDRV_SEQ_IOCTL_CREATE_PORT32:
127 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_CREATE_PORT, argp);
128 case SNDRV_SEQ_IOCTL_DELETE_PORT32:
129 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_DELETE_PORT, argp);
130 case SNDRV_SEQ_IOCTL_GET_PORT_INFO32:
131 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_GET_PORT_INFO, argp);
132 case SNDRV_SEQ_IOCTL_SET_PORT_INFO32:
133 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_SET_PORT_INFO, argp);
134 case SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT32:
135 return snd_seq_call_port_info_ioctl(client, SNDRV_SEQ_IOCTL_QUERY_NEXT_PORT, argp);
136 }
137 return -ENOIOCTLCMD;
138}