Skip to content

L
linux
Commit e55c57e0 authored by David S. Miller's avatar David S. Miller
Browse files
Options

[SPARC64]: Report any user access faults in termios accessors. 

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 37616578
Show whitespace changes
Inline Side-by-side
Showing with 41 additions and 37 deletions
include/asm-sparc64/termios.h
View file @ e55c57e0
...@@ -100,16 +100,17 @@ struct winsize { ...@@ -100,16 +100,17 @@ struct winsize {
#define user_termio_to_kernel_termios(termios, termio) \ #define user_termio_to_kernel_termios(termios, termio) \
({ \ ({ \
unsigned short tmp; \ 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; \ (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; \ (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; \ (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; \ (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ err |= copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
0; \ err; \
}) })
/* /*
...@@ -119,53 +120,56 @@ struct winsize { ...@@ -119,53 +120,56 @@ struct winsize {
*/ */
#define kernel_termios_to_user_termio(termio, termios) \ #define kernel_termios_to_user_termio(termio, termios) \
({ \ ({ \
put_user((termios)->c_iflag, &(termio)->c_iflag); \ int err; \
put_user((termios)->c_oflag, &(termio)->c_oflag); \ err = put_user((termios)->c_iflag, &(termio)->c_iflag); \
put_user((termios)->c_cflag, &(termio)->c_cflag); \ err |= put_user((termios)->c_oflag, &(termio)->c_oflag); \
put_user((termios)->c_lflag, &(termio)->c_lflag); \ err |= put_user((termios)->c_cflag, &(termio)->c_cflag); \
put_user((termios)->c_line, &(termio)->c_line); \ err |= put_user((termios)->c_lflag, &(termio)->c_lflag); \
copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ 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)) { \ if (!((termios)->c_lflag & ICANON)) { \
put_user((termios)->c_cc[VMIN], &(termio)->c_cc[_VMIN]); \ err |= 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[VTIME], &(termio)->c_cc[_VTIME]); \
} \ } \
0; \ err; \
}) })
#define user_termios_to_kernel_termios(k, u) \ #define user_termios_to_kernel_termios(k, u) \
({ \ ({ \
get_user((k)->c_iflag, &(u)->c_iflag); \ int err; \
get_user((k)->c_oflag, &(u)->c_oflag); \ err = get_user((k)->c_iflag, &(u)->c_iflag); \
get_user((k)->c_cflag, &(u)->c_cflag); \ err |= get_user((k)->c_oflag, &(u)->c_oflag); \
get_user((k)->c_lflag, &(u)->c_lflag); \ err |= get_user((k)->c_cflag, &(u)->c_cflag); \
get_user((k)->c_line, &(u)->c_line); \ err |= get_user((k)->c_lflag, &(u)->c_lflag); \
copy_from_user((k)->c_cc, (u)->c_cc, NCCS); \ 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) { \ if((k)->c_lflag & ICANON) { \
get_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ err |= 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[VEOL], &(u)->c_cc[VEOL]); \
} else { \ } else { \
get_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ err |= 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[VTIME], &(u)->c_cc[_VTIME]); \
} \ } \
0; \ err; \
}) })
#define kernel_termios_to_user_termios(u, k) \ #define kernel_termios_to_user_termios(u, k) \
({ \ ({ \
put_user((k)->c_iflag, &(u)->c_iflag); \ int err; \
put_user((k)->c_oflag, &(u)->c_oflag); \ err = put_user((k)->c_iflag, &(u)->c_iflag); \
put_user((k)->c_cflag, &(u)->c_cflag); \ err |= put_user((k)->c_oflag, &(u)->c_oflag); \
put_user((k)->c_lflag, &(u)->c_lflag); \ err |= put_user((k)->c_cflag, &(u)->c_cflag); \
put_user((k)->c_line, &(u)->c_line); \ err |= put_user((k)->c_lflag, &(u)->c_lflag); \
copy_to_user((u)->c_cc, (k)->c_cc, NCCS); \ 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)) { \ if(!((k)->c_lflag & ICANON)) { \
put_user((k)->c_cc[VMIN], &(u)->c_cc[_VMIN]); \ err |= 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[VTIME], &(u)->c_cc[_VTIME]); \
} else { \ } else { \
put_user((k)->c_cc[VEOF], &(u)->c_cc[VEOF]); \ err |= 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[VEOL], &(u)->c_cc[VEOL]); \
} \ } \
0; \ err; \
}) })
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7