[lxc-devel] creation of netwok name space

[Maheswara Reddy C - ERS, HCL Tech]

Hi,

I have created a namespace (below sample program) and how can I create a network name space.

#include<stdio.h>
#include<sched.h>
#include<alloca.h>
#include<signal.h>
#include <sys/types.h>
#include <unistd.h>

struct clone_arg {
    int (*fn)(void *);
    void *arg;
};

static int do_start(void *data)
{
    printf("do_start");
}

static int do_clone(void *arg)
{
    struct clone_arg *clone_arg = arg;
                printf("inside do_clone");
                return clone_arg->fn(clone_arg->arg);
}

int main()
{
    int (*fn)(void *) ;
                fn=do_start;
    struct clone_arg clone_arg ={.fn=fn,.arg=NULL  };
                long stack_size = sysconf(_SC_PAGESIZE);
    void *stack = alloca(stack_size) + stack_size;
                int flags= CLONE_NEWNS;
    pid_t ret;
                printf("inside main");
    ret = clone(do_clone, stack, flags ,&clone_arg);

return 1;

}


Thanks
Mahesh

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