cregit-Linux how code gets into the kernel

Release 4.12 include/asm-generic/termios-base.h

/* termios.h: generic termios/termio user copying/translation
 */

#ifndef _ASM_GENERIC_TERMIOS_BASE_H

#define _ASM_GENERIC_TERMIOS_BASE_H

#include <linux/uaccess.h>

#ifndef __ARCH_TERMIO_GETPUT

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */

static inline int user_termio_to_kernel_termios(struct ktermios *termios, struct termio __user *termio) { unsigned short tmp; if (get_user(tmp, &termio->c_iflag) < 0) goto fault; termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp; if (get_user(tmp, &termio->c_oflag) < 0) goto fault; termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp; if (get_user(tmp, &termio->c_cflag) < 0) goto fault; termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp; if (get_user(tmp, &termio->c_lflag) < 0) goto fault; termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp; if (get_user(termios->c_line, &termio->c_line) < 0) goto fault; if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0) goto fault; return 0; fault: return -EFAULT; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells19399.48%150.00%
Alan Cox10.52%150.00%
Total194100.00%2100.00%

/* * Translate a "termios" structure into a "termio". Ugh. */
static inline int kernel_termios_to_user_termio(struct termio __user *termio, struct ktermios *termios) { if (put_user(termios->c_iflag, &termio->c_iflag) < 0 || put_user(termios->c_oflag, &termio->c_oflag) < 0 || put_user(termios->c_cflag, &termio->c_cflag) < 0 || put_user(termios->c_lflag, &termio->c_lflag) < 0 || put_user(termios->c_line, &termio->c_line) < 0 || copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0) return -EFAULT; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
David Howells11199.11%150.00%
Alan Cox10.89%150.00%
Total112100.00%2100.00%

#ifndef user_termios_to_kernel_termios #define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios)) #endif #ifndef kernel_termios_to_user_termios #define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios)) #endif #define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios)) #define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios)) #endif /* __ARCH_TERMIO_GETPUT */ #endif /* _ASM_GENERIC_TERMIOS_BASE_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
David Howells33990.88%116.67%
Paul Mackerras184.83%116.67%
Heiko Carstens102.68%116.67%
Arnd Bergmann30.80%116.67%
Alan Cox20.54%116.67%
Linus Torvalds10.27%116.67%
Total373100.00%6100.00%
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