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sys/prctl.h: add PR_SET_SYSCALL_USER_DISPATCH from linux v5.11 

see

  linux commit 1446e1df9eb183fdf81c3f0715402f1d7595d4cb
  kernel: Implement selective syscall userspace redirection

  linux commit 36a6c843fd0d8e02506681577e96dabd203dd8e8
  entry: Use different define for selector variable in SUD

redirect syscalls to a userspace handler via SIGSYS, except for a specific
range of code. can be toggled via a memory write to a selector variable.
mainly for wine.
This commit is contained in:
Szabolcs Nagy 2021-03-07 20:50:17 +00:00 committed by Rich Felker
parent b21f3ded78
commit f35b99b387
1 changed files with 6 additions and 0 deletions
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6
include/sys/prctl.h
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@ -168,6 +168,12 @@ struct prctl_mm_map {
#define PR_SET_IO_FLUSHER 57 #define PR_SET_IO_FLUSHER 57
#define PR_GET_IO_FLUSHER 58 #define PR_GET_IO_FLUSHER 58
#define PR_SET_SYSCALL_USER_DISPATCH 59
#define PR_SYS_DISPATCH_OFF 0
#define PR_SYS_DISPATCH_ON 1
#define SYSCALL_DISPATCH_FILTER_ALLOW 0
#define SYSCALL_DISPATCH_FILTER_BLOCK 1
int prctl (int, ...); int prctl (int, ...);
#ifdef __cplusplus #ifdef __cplusplus