Re: [PATCH 3/3] ptrace,syscall_user_dispatch: add a getter/setter for sud configuration

On Sun, Jan 22, 2023 at 8:22 PM Gregory Price gourry.memverge@gmail.com wrote: <snip>

+#define PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG 0x4210 +#define PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG 0x4211 +struct syscall_user_dispatch_config {

•   __u64 mode;
  

•   __s8 *selector;
  

•   __u64 offset;
  

•   __u64 len;
  

•   __u8 on_dispatch;
  

Sorry, I didn't notice this in the previous version. on_dispatch looks like an internal property and I don't see how we can stop a process with ptrace when on_dispatch is set to a non-zero value. I am not sure that we need to expose it to user-space.

Other than that, the patch looks good to me.

Thanks, Andrei