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https://github.com/Qortal/Brooklyn.git
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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
78 lines
2.1 KiB
C
78 lines
2.1 KiB
C
/* termios.h: generic termios/termio user copying/translation
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*/
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#ifndef _ASM_GENERIC_TERMIOS_BASE_H
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#define _ASM_GENERIC_TERMIOS_BASE_H
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#include <asm/uaccess.h>
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#ifndef __ARCH_TERMIO_GETPUT
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/*
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* Translate a "termio" structure into a "termios". Ugh.
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*/
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static inline int user_termio_to_kernel_termios(struct ktermios *termios,
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struct termio __user *termio)
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{
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unsigned short tmp;
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if (get_user(tmp, &termio->c_iflag) < 0)
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goto fault;
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termios->c_iflag = (0xffff0000 & termios->c_iflag) | tmp;
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if (get_user(tmp, &termio->c_oflag) < 0)
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goto fault;
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termios->c_oflag = (0xffff0000 & termios->c_oflag) | tmp;
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if (get_user(tmp, &termio->c_cflag) < 0)
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goto fault;
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termios->c_cflag = (0xffff0000 & termios->c_cflag) | tmp;
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if (get_user(tmp, &termio->c_lflag) < 0)
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goto fault;
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termios->c_lflag = (0xffff0000 & termios->c_lflag) | tmp;
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if (get_user(termios->c_line, &termio->c_line) < 0)
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goto fault;
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if (copy_from_user(termios->c_cc, termio->c_cc, NCC) != 0)
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goto fault;
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return 0;
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fault:
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return -EFAULT;
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}
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/*
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* Translate a "termios" structure into a "termio". Ugh.
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*/
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static inline int kernel_termios_to_user_termio(struct termio __user *termio,
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struct ktermios *termios)
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{
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if (put_user(termios->c_iflag, &termio->c_iflag) < 0 ||
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put_user(termios->c_oflag, &termio->c_oflag) < 0 ||
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put_user(termios->c_cflag, &termio->c_cflag) < 0 ||
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put_user(termios->c_lflag, &termio->c_lflag) < 0 ||
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put_user(termios->c_line, &termio->c_line) < 0 ||
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copy_to_user(termio->c_cc, termios->c_cc, NCC) != 0)
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return -EFAULT;
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return 0;
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}
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#ifndef user_termios_to_kernel_termios
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#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
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#endif
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#ifndef kernel_termios_to_user_termios
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#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
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#endif
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#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
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#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
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#endif /* __ARCH_TERMIO_GETPUT */
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#endif /* _ASM_GENERIC_TERMIOS_BASE_H */
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