ptrace: add PTRACE_O_EXITKILL option

bpowers · bpowers · commit 55582147f71a · 2017-09-24T17:34:45.000-04:00
It is a somewhat newer option -- it requires Linux 3.8. Is there a
more precise way to specify that?
diff --git a/src/sys/ptrace.rs b/src/sys/ptrace.rs
@@ -116,6 +116,10 @@ libc_bitflags! {
         /// Stop tracee when a SECCOMP_RET_TRACE rule is triggered. See `man seccomp` for more
         /// details.
         PTRACE_O_TRACESECCOMP;
+        /// Send a SIGKILL to the tracee if the tracer exits.  This is useful
+        /// for ptrace jailers to prevent tracees from escaping their control.
+        #[cfg(target_os = "linux")]
+        PTRACE_O_EXITKILL;
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -116,6 +116,10 @@ libc_bitflags! {`
`116`	`116`	/// Stop tracee when a SECCOMP_RET_TRACE rule is triggered. See `man seccomp` for more
`117`	`117`	`/// details.`
`118`	`118`	`PTRACE_O_TRACESECCOMP;`
	`119`	`+ /// Send a SIGKILL to the tracee if the tracer exits. This is useful`
	`120`	`+ /// for ptrace jailers to prevent tracees from escaping their control.`
	`121`	`+ #[cfg(target_os = "linux")]`
	`122`	`+ PTRACE_O_EXITKILL;`
`119`	`123`	`}`
`120`	`124`	`}`
`121`	`125`