#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <netinet/in.h>
#include <stdint.h>
#include <sys/socket.h>
#include <sys/types.h>

struct rtentry {
    unsigned long int rt_pad1;
    struct sockaddr rt_dst;
    struct sockaddr rt_gateway;
    struct sockaddr rt_genmask;
    unsigned short int rt_flags;
    short int rt_pad2;
    unsigned long int rt_pad3;
    unsigned char rt_tos;
    unsigned char rt_class;
    short int rt_pad4[sizeof(long) / 2 - 1];
    short int rt_metric;
    char* rt_dev;
    unsigned long int rt_mtu;
    unsigned long int rt_window;
    unsigned short int rt_irtt;
};

#define rt_mss rt_mtu

struct in6_rtmsg {
    struct in6_addr rtmsg_dst;
    struct in6_addr rtmsg_src;
    struct in6_addr rtmsg_gateway;
    uint32_t rtmsg_type;
    uint16_t rtmsg_dst_len;
    uint16_t rtmsg_src_len;
    uint32_t rtmsg_metric;
    unsigned long int rtmsg_info;
    uint32_t rtmsg_flags;
    int rtmsg_ifindex;
};

#define RTF_UP 0x0001
#define RTF_GATEWAY 0x0002

#define RTF_HOST 0x0004
#define RTF_REINSTATE 0x0008
#define RTF_DYNAMIC 0x0010
#define RTF_MODIFIED 0x0020
#define RTF_MTU 0x0040
#define RTF_MSS RTF_MTU
#define RTF_WINDOW 0x0080
#define RTF_IRTT 0x0100
#define RTF_REJECT 0x0200
#define RTF_STATIC 0x0400
#define RTF_XRESOLVE 0x0800
#define RTF_NOFORWARD 0x1000
#define RTF_THROW 0x2000
#define RTF_NOPMTUDISC 0x4000

#define RTF_DEFAULT 0x00010000
#define RTF_ALLONLINK 0x00020000
#define RTF_ADDRCONF 0x00040000

#define RTF_LINKRT 0x00100000
#define RTF_NONEXTHOP 0x00200000

#define RTF_CACHE 0x01000000
#define RTF_FLOW 0x02000000
#define RTF_POLICY 0x04000000

#define RTCF_VALVE 0x00200000
#define RTCF_MASQ 0x00400000
#define RTCF_NAT 0x00800000
#define RTCF_DOREDIRECT 0x01000000
#define RTCF_LOG 0x02000000
#define RTCF_DIRECTSRC 0x04000000

#define RTF_LOCAL 0x80000000
#define RTF_INTERFACE 0x40000000
#define RTF_MULTICAST 0x20000000
#define RTF_BROADCAST 0x10000000
#define RTF_NAT 0x08000000

#define RTF_ADDRCLASSMASK 0xF8000000
#define RT_ADDRCLASS(flags) ((uint32_t)flags >> 23)

#define RT_TOS(tos) ((tos)&IPTOS_TOS_MASK)

#define RT_LOCALADDR(flags) ((flags & RTF_ADDRCLASSMASK) == (RTF_LOCAL | RTF_INTERFACE))

#define RT_CLASS_UNSPEC 0
#define RT_CLASS_DEFAULT 253

#define RT_CLASS_MAIN 254
#define RT_CLASS_LOCAL 255
#define RT_CLASS_MAX 255

#define RTMSG_ACK NLMSG_ACK
#define RTMSG_OVERRUN NLMSG_OVERRUN

#define RTMSG_NEWDEVICE 0x11
#define RTMSG_DELDEVICE 0x12
#define RTMSG_NEWROUTE 0x21
#define RTMSG_DELROUTE 0x22
#define RTMSG_NEWRULE 0x31
#define RTMSG_DELRULE 0x32
#define RTMSG_CONTROL 0x40

#define RTMSG_AR_FAILED 0x51

#ifdef __cplusplus
}
#endif