Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* termios.h: generic termios/termio user copying/translation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #ifndef _ASM_GENERIC_TERMIOS_BASE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #define _ASM_GENERIC_TERMIOS_BASE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef __ARCH_TERMIO_GETPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * Translate a "termio" structure into a "termios". Ugh.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static inline int user_termio_to_kernel_termios(struct ktermios *termios,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 						struct termio __user *termio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	unsigned short tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	if (get_user(tmp, &termio->c_iflag) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	if (get_user(tmp, &termio->c_oflag) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	if (get_user(tmp, &termio->c_cflag) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	if (get_user(tmp, &termio->c_lflag) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	if (get_user(termios->c_line, &termio->c_line) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		goto fault;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)  fault:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)  * Translate a "termios" structure into a "termio". Ugh.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) static inline int kernel_termios_to_user_termio(struct termio __user *termio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 						struct ktermios *termios)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	    put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	    put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	    put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 	    put_user(termios->c_line,  &termio->c_line) < 0 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	    copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		return -EFAULT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #ifndef user_termios_to_kernel_termios
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #ifndef kernel_termios_to_user_termios
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif	/* __ARCH_TERMIO_GETPUT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #endif /* _ASM_GENERIC_TERMIOS_BASE_H */