11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * This file is subject to the terms and conditions of the GNU General Public 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * License. See the file "COPYING" in the main directory of this archive 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for more details. 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Copyright (C) 2000, 2001 Silicon Graphics, Inc. 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _ASM_TERMIOS_H 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _ASM_TERMIOS_H 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 124ca98d399e66899222f1d457731b7857e85e09f1Paul Gortmaker#include <asm/uaccess.h> 1361730c538f8281efa7ac12596da9f3f9a31b9272David Howells#include <uapi/asm/termios.h> 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * intr=^C quit=^\ erase=del kill=^U 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * vmin=\1 vtime=\0 eol2=\0 swtc=\0 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * start=^Q stop=^S susp=^Z vdsusp= 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * reprint=^R discard=^U werase=^W lnext=^V 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * eof=^D eol=\0 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0" 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#include <linux/string.h> 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Translate a "termio" structure into a "termios". Ugh. 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 29732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int user_termio_to_kernel_termios(struct ktermios *termios, 30732f0462d59721764843783d790a613613287b33Ralf Baechle struct termio __user *termio) 31732f0462d59721764843783d790a613613287b33Ralf Baechle{ 32732f0462d59721764843783d790a613613287b33Ralf Baechle unsigned short iflag, oflag, cflag, lflag; 33732f0462d59721764843783d790a613613287b33Ralf Baechle unsigned int err; 34732f0462d59721764843783d790a613613287b33Ralf Baechle 35732f0462d59721764843783d790a613613287b33Ralf Baechle if (!access_ok(VERIFY_READ, termio, sizeof(struct termio))) 36732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 37732f0462d59721764843783d790a613613287b33Ralf Baechle 38732f0462d59721764843783d790a613613287b33Ralf Baechle err = __get_user(iflag, &termio->c_iflag); 39732f0462d59721764843783d790a613613287b33Ralf Baechle termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag; 40732f0462d59721764843783d790a613613287b33Ralf Baechle err |=__get_user(oflag, &termio->c_oflag); 41732f0462d59721764843783d790a613613287b33Ralf Baechle termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag; 42732f0462d59721764843783d790a613613287b33Ralf Baechle err |=__get_user(cflag, &termio->c_cflag); 43732f0462d59721764843783d790a613613287b33Ralf Baechle termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag; 44732f0462d59721764843783d790a613613287b33Ralf Baechle err |=__get_user(lflag, &termio->c_lflag); 45732f0462d59721764843783d790a613613287b33Ralf Baechle termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag; 46732f0462d59721764843783d790a613613287b33Ralf Baechle err |=__get_user(termios->c_line, &termio->c_line); 47732f0462d59721764843783d790a613613287b33Ralf Baechle if (err) 48732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 49732f0462d59721764843783d790a613613287b33Ralf Baechle 50732f0462d59721764843783d790a613613287b33Ralf Baechle if (__copy_from_user(termios->c_cc, termio->c_cc, NCC)) 51732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 52732f0462d59721764843783d790a613613287b33Ralf Baechle 53732f0462d59721764843783d790a613613287b33Ralf Baechle return 0; 54732f0462d59721764843783d790a613613287b33Ralf Baechle} 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Translate a "termios" structure into a "termio". Ugh. 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 59732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int kernel_termios_to_user_termio(struct termio __user *termio, 60732f0462d59721764843783d790a613613287b33Ralf Baechle struct ktermios *termios) 61732f0462d59721764843783d790a613613287b33Ralf Baechle{ 62732f0462d59721764843783d790a613613287b33Ralf Baechle int err; 63732f0462d59721764843783d790a613613287b33Ralf Baechle 64732f0462d59721764843783d790a613613287b33Ralf Baechle if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio))) 65732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 66732f0462d59721764843783d790a613613287b33Ralf Baechle 67732f0462d59721764843783d790a613613287b33Ralf Baechle err = __put_user(termios->c_iflag, &termio->c_iflag); 68732f0462d59721764843783d790a613613287b33Ralf Baechle err |= __put_user(termios->c_oflag, &termio->c_oflag); 69732f0462d59721764843783d790a613613287b33Ralf Baechle err |= __put_user(termios->c_cflag, &termio->c_cflag); 70732f0462d59721764843783d790a613613287b33Ralf Baechle err |= __put_user(termios->c_lflag, &termio->c_lflag); 71732f0462d59721764843783d790a613613287b33Ralf Baechle err |= __put_user(termios->c_line, &termio->c_line); 72732f0462d59721764843783d790a613613287b33Ralf Baechle if (err) 73732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 74732f0462d59721764843783d790a613613287b33Ralf Baechle 75732f0462d59721764843783d790a613613287b33Ralf Baechle if (__copy_to_user(termio->c_cc, termios->c_cc, NCC)) 76732f0462d59721764843783d790a613613287b33Ralf Baechle return -EFAULT; 77732f0462d59721764843783d790a613613287b33Ralf Baechle 78732f0462d59721764843783d790a613613287b33Ralf Baechle return 0; 79732f0462d59721764843783d790a613613287b33Ralf Baechle} 80732f0462d59721764843783d790a613613287b33Ralf Baechle 81732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int user_termios_to_kernel_termios(struct ktermios __user *k, 82732f0462d59721764843783d790a613613287b33Ralf Baechle struct termios2 *u) 83732f0462d59721764843783d790a613613287b33Ralf Baechle{ 84732f0462d59721764843783d790a613613287b33Ralf Baechle return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0; 85732f0462d59721764843783d790a613613287b33Ralf Baechle} 86732f0462d59721764843783d790a613613287b33Ralf Baechle 87732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int kernel_termios_to_user_termios(struct termios2 __user *u, 88732f0462d59721764843783d790a613613287b33Ralf Baechle struct ktermios *k) 89732f0462d59721764843783d790a613613287b33Ralf Baechle{ 90732f0462d59721764843783d790a613613287b33Ralf Baechle return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0; 91732f0462d59721764843783d790a613613287b33Ralf Baechle} 92732f0462d59721764843783d790a613613287b33Ralf Baechle 93732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int user_termios_to_kernel_termios_1(struct ktermios *k, 94732f0462d59721764843783d790a613613287b33Ralf Baechle struct termios __user *u) 95732f0462d59721764843783d790a613613287b33Ralf Baechle{ 96732f0462d59721764843783d790a613613287b33Ralf Baechle return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0; 97732f0462d59721764843783d790a613613287b33Ralf Baechle} 98732f0462d59721764843783d790a613613287b33Ralf Baechle 99732f0462d59721764843783d790a613613287b33Ralf Baechlestatic inline int kernel_termios_to_user_termios_1(struct termios __user *u, 100732f0462d59721764843783d790a613613287b33Ralf Baechle struct ktermios *k) 101732f0462d59721764843783d790a613613287b33Ralf Baechle{ 102732f0462d59721764843783d790a613613287b33Ralf Baechle return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0; 103732f0462d59721764843783d790a613613287b33Ralf Baechle} 1041da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1051da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* _ASM_TERMIOS_H */ 106