Changes

After this the <code>parasite.h</code> file should be included into the infecting program and compiled with it.

After this the <code>parasite.h</code> file should be included into the infecting program and compiled with it.

== Communicating ==

== Running parasite code ==

There are several ways to pass parameters to the parasite code.

So, in order to infect a task with parasite one must.

If you run the parasite binary from CLI, the command line arguments after <code>--</code> are passed into the parasite's <code>main()</code> function.

* Stop the task with <code>compel_stop_task(int pid)</code> call and keep the return value if it's positive (it contains the task state)

 

* Prepare the infection handler with <code>compel_prepare(int pid)</code> call. The return value is an opaque pointer to <code>struct parasite_ctl()</code>

<pre>

** Just execute a system call with <code>compel_syscall(ctl, int syscall_nr, long *ret, int arg ... (6 of them))</code>

</pre>

** Infect victim with parasite blob with <code>compel_infect(ctl, nr_thread, size_of_args_area)</code>

 

* Cure the victim with <code>compel_cure(ctl)</code> and stop using the ctl pointer as it's freed by the call

In <code>main()</code>, the standard <code>argc</code> and <code>argv</code> can be obtained using the following code:

* Resume the task with <code>compel_resume_task(pid)</code>

 

<source lang="C">

argc = std_argc(arg_p);

 

These calls are available in <code>argv</code> [[compel plugins|plugin]]. Now, argc and argv can be handled as usual.

== See also ==

== See also ==