1/*
2 * Copyright (c) 2013 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29#ifndef __TTY_DEV_H__
30#define __TTY_DEV_H__
31
32/*
33 * ptmx_ioctl is a pointer to a list of pointers to tty structures which is
34 * grown, as necessary, copied, and replaced, but never shrunk. The ioctl
35 * structures themselves pointed to from this list come and go as needed.
36 */
37struct ptmx_ioctl {
38 struct tty *pt_tty; /* pointer to ttymalloc()'ed data */
39 int pt_flags;
40 struct selinfo pt_selr;
41 struct selinfo pt_selw;
42 u_char pt_send;
43 u_char pt_ucntl;
44 void *pt_devhandle; /* cloned replica device handle */
45};
46
47#define PF_PKT 0x0008 /* packet mode */
48#define PF_STOPPED 0x0010 /* user told stopped */
49#define PF_NOSTOP 0x0040
50#define PF_UCNTL 0x0080 /* user control mode */
51#define PF_UNLOCKED 0x0100 /* replica unlock (primary open resets) */
52#define PF_OPEN_M 0x0200 /* primary is open */
53#define PF_OPEN_S 0x0400 /* replica is open */
54
55struct tty_dev_t {
56 int primary; // primary major device number
57 int replica; // replica major device number
58 unsigned int fix_7828447:1,
59 fix_7070978:1,
60 mac_notify:1,
61 open_reset:1,
62 _reserved:28;
63#if __LP64__
64 int _pad;
65#endif
66
67 struct tty_dev_t *next;
68
69 struct ptmx_ioctl *(*open)(int minor, int flags);
70 int (*free)(int minor, int flags);
71 int (*name)(int minor, char *buffer, size_t size);
72 void (*revoke)(int minor, struct tty *tp);
73};
74
75extern void tty_dev_register(struct tty_dev_t *dev);
76
77extern int ttnread(struct tty *tp);
78
79extern void termios32to64(struct termios32 *in, struct user_termios *out);
80extern void termios64to32(struct user_termios *in, struct termios32 *out);
81
82#endif // __TTY_DEV_H__
83