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[SPARC64]: Report any user access faults in termios accessors.
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Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller committed Jun 25, 2005
1 parent 3761657 commit e55c57e
Showing 1 changed file with 41 additions and 37 deletions.
78 changes: 41 additions & 37 deletions include/asm-sparc64/termios.h
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Original file line number Diff line number Diff line change
Expand Up @@ -100,16 +100,17 @@ struct winsize {
#define user_termio_to_kernel_termios(termios, termio) \
({ \
unsigned short tmp; \
get_user(tmp, &(termio)->c_iflag); \
int err; \
err = get_user(tmp, &(termio)->c_iflag); \
(termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
get_user(tmp, &(termio)->c_oflag); \
err |= get_user(tmp, &(termio)->c_oflag); \
(termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
get_user(tmp, &(termio)->c_cflag); \
err |= get_user(tmp, &(termio)->c_cflag); \
(termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
get_user(tmp, &(termio)->c_lflag); \
err |= get_user(tmp, &(termio)->c_lflag); \
(termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
0; \
err |= copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
err; \
})

/*
Expand All @@ -119,53 +120,56 @@ struct winsize {
*/
#define kernel_termios_to_user_termio(termio, termios) \
({ \
put_user((termios)->c_iflag, &(termio)->c_iflag); \
put_user((termios)->c_oflag, &(termio)->c_oflag); \
put_user((termios)->c_cflag, &(termio)->c_cflag); \
put_user((termios)->c_lflag, &(termio)->c_lflag); \
put_user((termios)->c_line, &(termio)->c_line); \
copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
int err; \
err = put_user((termios)->c_iflag, &(termio)->c_iflag); \
err |= put_user((termios)->c_oflag, &(termio)->c_oflag); \
err |= put_user((termios)->c_cflag, &(termio)->c_cflag); \
err |= put_user((termios)->c_lflag, &(termio)->c_lflag); \
err |= put_user((termios)->c_line, &(termio)->c_line); \
err |= copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
if (!((termios)->c_lflag & ICANON)) { \
put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \
put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \
err |= put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \
err |= put_user((termios)->c_cc[VTIME], &(termio)->c_cc[_VTIME]); \
} \
0; \
err; \
})

#define user_termios_to_kernel_termios(k, u) \
({ \
get_user((k)->c_iflag, &(u)->c_iflag); \
get_user((k)->c_oflag, &(u)->c_oflag); \
get_user((k)->c_cflag, &(u)->c_cflag); \
get_user((k)->c_lflag, &(u)->c_lflag); \
get_user((k)->c_line, &(u)->c_line); \
copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \
int err; \
err = get_user((k)->c_iflag, &(u)->c_iflag); \
err |= get_user((k)->c_oflag, &(u)->c_oflag); \
err |= get_user((k)->c_cflag, &(u)->c_cflag); \
err |= get_user((k)->c_lflag, &(u)->c_lflag); \
err |= get_user((k)->c_line, &(u)->c_line); \
err |= copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \
if((k)->c_lflag & ICANON) { \
get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
err |= get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
err |= get_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
} else { \
get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \
get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
err |= get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \
err |= get_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
} \
0; \
err; \
})

#define kernel_termios_to_user_termios(u, k) \
({ \
put_user((k)->c_iflag, &(u)->c_iflag); \
put_user((k)->c_oflag, &(u)->c_oflag); \
put_user((k)->c_cflag, &(u)->c_cflag); \
put_user((k)->c_lflag, &(u)->c_lflag); \
put_user((k)->c_line, &(u)->c_line); \
copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \
int err; \
err = put_user((k)->c_iflag, &(u)->c_iflag); \
err |= put_user((k)->c_oflag, &(u)->c_oflag); \
err |= put_user((k)->c_cflag, &(u)->c_cflag); \
err |= put_user((k)->c_lflag, &(u)->c_lflag); \
err |= put_user((k)->c_line, &(u)->c_line); \
err |= copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \
if(!((k)->c_lflag & ICANON)) { \
put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \
put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
err |= put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \
err |= put_user((k)->c_cc[VTIME], &(u)->c_cc[_VTIME]); \
} else { \
put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
err |= put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \
err |= put_user((k)->c_cc[VEOL], &(u)->c_cc[VEOL]); \
} \
0; \
err; \
})

#endif /* __KERNEL__ */
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