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#ifndef PPP_CCP_H
#define PPP_CCP_H
#include <stdint.h>
#include "triton.h"
#include "ppp_fsm.h"
/*
* Options.
*/
#define CI_MPPE 18 /* MPPE */
struct ccp_hdr_t
{
uint16_t proto;
uint8_t code;
uint8_t id;
uint16_t len;
} __attribute__((packed));
struct ccp_opt_hdr_t
{
uint8_t id;
uint8_t len;
} __attribute__((packed));
struct ccp_opt8_t
{
struct ccp_opt_hdr_t hdr;
uint8_t val;
} __attribute__((packed));
struct ccp_opt16_t
{
struct ccp_opt_hdr_t hdr;
uint16_t val;
} __attribute__((packed));
struct ccp_opt32_t
{
struct ccp_opt_hdr_t hdr;
uint32_t val;
} __attribute__((packed));
#define CCP_OPT_NONE 0
#define CCP_OPT_ACK 1
#define CCP_OPT_NAK -1
#define CCP_OPT_REJ -2
#define CCP_OPT_FAIL -3
struct ppp_ccp_t;
struct ccp_option_handler_t;
struct ccp_option_t
{
struct list_head entry;
int id;
int len;
int state;
struct ccp_option_handler_t *h;
};
struct ccp_option_handler_t
{
struct list_head entry;
struct ccp_option_t* (*init)(struct ppp_ccp_t*);
int (*send_conf_req)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*send_conf_rej)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*send_conf_nak)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*recv_conf_req)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*recv_conf_rej)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*recv_conf_nak)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
int (*recv_conf_ack)(struct ppp_ccp_t*,struct ccp_option_t*,uint8_t*);
void (*free)(struct ppp_ccp_t*,struct ccp_option_t*);
void (*print)(void (*print)(const char *fmt,...), struct ccp_option_t*,uint8_t*);
};
struct ppp_ccp_t
{
struct ppp_layer_data_t ld;
struct ppp_handler_t hnd;
struct ppp_fsm_t fsm;
struct ppp_t *ppp;
struct list_head options;
struct list_head ropt_list; // last received ConfReq
int ropt_len;
int conf_req_len;
int starting:1;
int started:1;
};
int ccp_option_register(struct ccp_option_handler_t *h);
struct ccp_option_t *ccp_find_option(struct ppp_t *ppp, struct ccp_option_handler_t *h);
struct ppp_ccp_t *ccp_find_layer_data(struct ppp_t *ppp);
int ccp_ipcp_started(struct ppp_t *ppp);
#endif
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