moonjuice/kernel_arpi
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

entry: Use different define for selector variable in SUD

Browse Source 
Michael Kerrisk suggested that, from an API perspective, it is a bad
idea to share the PR_SYS_DISPATCH_ defines between the prctl operation
and the selector variable.

Therefore, define two new constants to be used by SUD's selector variable
and update the corresponding documentation and test cases.

While this changes the API syscall user dispatch has never been part of a
Linux release, it will show up for the first time in 5.11.

Suggested-by: Michael Kerrisk (man-pages) <mtk.manpages@gmail.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210205184321.2062251-1-krisman@collabora.com
This commit is contained in:
Gabriel Krisman Bertazi
2021-02-05 13:43:21 -05:00
committed by Thomas Gleixner
parent 6342adcaa6
commit 36a6c843fd
5 changed files with 20 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/uapi/linux/prctl.h
View File

@@ -251,5 +251,8 @@ struct prctl_mm_map {
#define PR_SET_SYSCALL_USER_DISPATCH 59
# define PR_SYS_DISPATCH_OFF 0
# define PR_SYS_DISPATCH_ON 1
/* The control values for the user space selector when dispatch is enabled */
# define SYSCALL_DISPATCH_FILTER_ALLOW 0
# define SYSCALL_DISPATCH_FILTER_BLOCK 1
#endif /* _LINUX_PRCTL_H */