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#ifndef __L2TP_PROT_H
#define __L2TP_PROT_H
#include <stdint.h>
#define L2TP_PORT 1701
struct l2tp_hdr_t
{
uint8_t P:1;
uint8_t O:1;
uint8_t reserved2:1;
uint8_t S:1;
uint8_t reserved1:2;
uint8_t L:1;
uint8_t T:1;
uint8_t ver:4;
uint8_t reserved3:4;
uint16_t length;
union {
struct {
uint16_t tid;
uint16_t sid;
};
uint32_t cid;
};
uint16_t Ns;
uint16_t Nr;
} __attribute__((packed));
/*#define L2TP_T(hdr) (hdr->flags >> 15)
#define L2TP_L(hdr) ((hdr->flags >> 14) & 1)
#define L2TP_S(hdr) ((hdr->flags >> 10) & 1)
#define L2TP_O(hdr) ((hdr->flags >> 8) & 1)
#define L2TP_VER(hdr) (hdr->flags & 0xf)*/
struct l2tp_avp_t
{
uint16_t length:10;
uint16_t reserved:4;
uint16_t H:1;
uint16_t M:1;
uint16_t vendor;
uint16_t type;
uint8_t val[0];
} __attribute__((packed));
struct l2tp_avp_result_code
{
uint16_t result_code;
uint16_t error_code;
} __attribute__((packed));
#endif
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