clone process support in python

Question

Is there any support of the syscall clone(2) (not os.fork) in Python? I want to play with Linux namespaces under Python but it seems that there is not a l

Answer 1

Well, finally I think I got the answer, is just usign ctypes with libc,

This is a simple proof of concept:

from ctypes import *

libc = CDLL("libc.so.6")

# Create stack.                                                                                                                                                                            
stack = c_char_p(" " * 8096)

def f():
    print libc.getpid()
    return 0

# Conver function to c type returning an integer.                                                                                                                                          
f_c = CFUNCTYPE(c_int)(f)

# We need the top of the stack.                                                                                                                                                            
stack_top = c_void_p(cast(stack, c_void_p).value + 8096)

# Call clone with the NEWPID Flag                                                                                                                                                          
libc.clone(f_c, stack_top, 0x20000000)

This has to be run by root.