#ifndef _TRACE_API_H
#define _TRACE_API_H

#include <linux/in.h>
#include <linux/in6.h>

typedef enum {
    TRACE_SUCCESS = 0,
    TRACE_FAILURE,
    TRACE_PENDING
} trace_ret_t;

#ifndef u8
typedef unsigned char u8;
#endif 

#ifndef u16
typedef unsigned short u16;
#endif

#ifndef u32
typedef unsigned int u32;
#endif


typedef struct _addr {
    u8 family;
    union {
        struct in_addr ip4;
        struct in6_addr ip6;
    } addr;
} addr_t;


typedef void (*async_cb)(trace_ret_t ret, void *arg);


typedef struct _trace_policy {
    addr_t      src;
    u16    sport;
    addr_t      dst;
    u16    dport;
    u8     protocol;

    //PKT_TUPLE
    u16    app_type;
} trace_policy_t;

trace_ret_t policy_client_init();
trace_ret_t policy_client_exit();
trace_ret_t policy_async_exec(const trace_policy_t  *in, 
                        async_cb cb, void *arg);
trace_ret_t policy_sync_exec(const trace_policy_t  *in);


#endif