BadVPN – Rev 1
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/**
* @file
* Application layered TCP connection API (to be used from TCPIP thread)\n
* This interface mimics the tcp callback API to the application while preventing
* direct linking (much like virtual functions).
* This way, an application can make use of other application layer protocols
* on top of TCP without knowing the details (e.g. TLS, proxy connection).
*/
/*
* Copyright (c) 2017 Simon Goldschmidt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt <goldsimon@gmx.de>
*
*/
#ifndef LWIP_HDR_ALTCP_PRIV_H
#define LWIP_HDR_ALTCP_PRIV_H
#include "lwip/opt.h"
#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/altcp.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
struct altcp_pcb *altcp_alloc(void);
void altcp_free(struct altcp_pcb *conn);
/* Function prototypes for application layers */
typedef void (*altcp_set_poll_fn)(struct altcp_pcb *conn, u8_t interval);
typedef void (*altcp_recved_fn)(struct altcp_pcb *conn, u16_t len);
typedef err_t (*altcp_bind_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
typedef err_t (*altcp_connect_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected);
typedef struct altcp_pcb *(*altcp_listen_fn)(struct altcp_pcb *conn, u8_t backlog, err_t *err);
typedef void (*altcp_abort_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_close_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_shutdown_fn)(struct altcp_pcb *conn, int shut_rx, int shut_tx);
typedef err_t (*altcp_write_fn)(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
typedef err_t (*altcp_output_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_mss_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_sndbuf_fn)(struct altcp_pcb *conn);
typedef u16_t (*altcp_sndqueuelen_fn)(struct altcp_pcb *conn);
typedef void (*altcp_nagle_disable_fn)(struct altcp_pcb *conn);
typedef void (*altcp_nagle_enable_fn)(struct altcp_pcb *conn);
typedef int (*altcp_nagle_disabled_fn)(struct altcp_pcb *conn);
typedef void (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio);
typedef void (*altcp_dealloc_fn)(struct altcp_pcb *conn);
typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local);
typedef u16_t (*altcp_get_port_fn)(struct altcp_pcb *conn, int local);
#ifdef LWIP_DEBUG
typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn);
#endif
struct altcp_functions {
altcp_set_poll_fn set_poll;
altcp_recved_fn recved;
altcp_bind_fn bind;
altcp_connect_fn connect;
altcp_listen_fn listen;
altcp_abort_fn abort;
altcp_close_fn close;
altcp_shutdown_fn shutdown;
altcp_write_fn write;
altcp_output_fn output;
altcp_mss_fn mss;
altcp_sndbuf_fn sndbuf;
altcp_sndqueuelen_fn sndqueuelen;
altcp_nagle_disable_fn nagle_disable;
altcp_nagle_enable_fn nagle_enable;
altcp_nagle_disabled_fn nagle_disabled;
altcp_setprio_fn setprio;
altcp_dealloc_fn dealloc;
altcp_get_tcp_addrinfo_fn addrinfo;
altcp_get_ip_fn getip;
altcp_get_port_fn getport;
#ifdef LWIP_DEBUG
altcp_dbg_get_tcp_state_fn dbg_get_tcp_state;
#endif
};
void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval);
void altcp_default_recved(struct altcp_pcb *conn, u16_t len);
err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port);
err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx);
err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags);
err_t altcp_default_output(struct altcp_pcb *conn);
u16_t altcp_default_mss(struct altcp_pcb *conn);
u16_t altcp_default_sndbuf(struct altcp_pcb *conn);
u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn);
void altcp_default_nagle_disable(struct altcp_pcb *conn);
void altcp_default_nagle_enable(struct altcp_pcb *conn);
int altcp_default_nagle_disabled(struct altcp_pcb *conn);
void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio);
void altcp_default_dealloc(struct altcp_pcb *conn);
err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port);
ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local);
u16_t altcp_default_get_port(struct altcp_pcb *conn, int local);
#ifdef LWIP_DEBUG
enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn);
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_ALTCP */
#endif /* LWIP_HDR_ALTCP_PRIV_H */