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#ifndef PPP_H
#define PPP_H
#include <sys/types.h>
#include <time.h>
#include <pthread.h>
#include <netinet/in.h>
#include "triton.h"
#include "list.h"
#include "ap_session.h"
/*
* Packet header = Code, id, length.
*/
#define PPP_HEADERLEN 4
#define PPP_MTU 1500
/*
* Protocol field values.
*/
#define PPP_IP 0x21 /* Internet Protocol */
#define PPP_AT 0x29 /* AppleTalk Protocol */
#define PPP_IPX 0x2b /* IPX protocol */
#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */
#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */
#define PPP_IPV6 0x57 /* Internet Protocol Version 6 */
#define PPP_COMP 0xfd /* compressed packet */
#define PPP_IPCP 0x8021 /* IP Control Protocol */
#define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */
#define PPP_IPXCP 0x802b /* IPX Control Protocol */
#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */
#define PPP_CCP 0x80fd /* Compression Control Protocol */
#define PPP_ECP 0x8053 /* Encryption Control Protocol */
#define PPP_LCP 0xc021 /* Link Control Protocol */
#define PPP_PAP 0xc023 /* Password Authentication Protocol */
#define PPP_LQR 0xc025 /* Link Quality Report protocol */
#define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */
#define PPP_CBCP 0xc029 /* Callback Control Protocol */
#define PPP_EAP 0xc227 /* Extensible Authentication Protocol */
struct ppp_t
{
struct ap_session ses;
struct triton_md_handler_t chan_hnd;
struct triton_md_handler_t unit_hnd;
int fd;
int chan_fd;
int unit_fd;
int chan_idx;
int mtu;
int mru;
void *buf;
int buf_size;
struct list_head chan_handlers;
struct list_head unit_handlers;
struct list_head layers;
};
struct ppp_layer_t;
struct layer_node_t;
struct ppp_layer_data_t
{
struct list_head entry;
struct ppp_layer_t *layer;
struct layer_node_t *node;
int passive:1;
int optional:1;
int starting:1;
int started:1;
int finished:1;
};
struct ppp_layer_t
{
struct list_head entry;
struct ppp_layer_data_t *(*init)(struct ppp_t *);
int (*start)(struct ppp_layer_data_t*);
void (*finish)(struct ppp_layer_data_t*);
void (*free)(struct ppp_layer_data_t *);
};
struct ppp_handler_t
{
struct list_head entry;
int proto;
void (*recv)(struct ppp_handler_t*);
void (*recv_proto_rej)(struct ppp_handler_t *h);
};
void ppp_init(struct ppp_t *ppp);
int establish_ppp(struct ppp_t *ppp);
int ppp_chan_send(struct ppp_t *ppp, void *data, int size);
int ppp_unit_send(struct ppp_t *ppp, void *data, int size);
void lcp_send_proto_rej(struct ppp_t *ppp, uint16_t proto);
void ppp_recv_proto_rej(struct ppp_t *ppp, uint16_t proto);
void ppp_layer_started(struct ppp_t *ppp,struct ppp_layer_data_t*);
void ppp_layer_finished(struct ppp_t *ppp,struct ppp_layer_data_t*);
void ppp_layer_passive(struct ppp_t *ppp,struct ppp_layer_data_t*);
void ppp_terminate(struct ap_session *ses, int hard);
void ppp_register_chan_handler(struct ppp_t *, struct ppp_handler_t *);
void ppp_register_unit_handler(struct ppp_t * ,struct ppp_handler_t *);
void ppp_unregister_handler(struct ppp_t *, struct ppp_handler_t *);
int ppp_register_layer(const char *name, struct ppp_layer_t *);
void ppp_unregister_layer(struct ppp_layer_t *);
struct ppp_layer_data_t *ppp_find_layer_data(struct ppp_t *, struct ppp_layer_t *);
extern int conf_ppp_verbose;
#endif
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