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 */ 37 struct 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 55 struct 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 75 extern void tty_dev_register(struct tty_dev_t *dev); 76 77 extern int ttnread(struct tty *tp); 78 79 extern void termios32to64(struct termios32 *in, struct user_termios *out); 80 extern void termios64to32(struct user_termios *in, struct termios32 *out); 81 82 #endif // __TTY_DEV_H__ 83