mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
139 lines
3.2 KiB
C
139 lines
3.2 KiB
C
/*
|
|
* Copyright (C) 2015-2017 Simon Brummer
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU Lesser
|
|
* General Public License v2.1. See the file LICENSE in the top level
|
|
* directory for more details.
|
|
*/
|
|
|
|
/**
|
|
* @ingroup net_gnrc_tcp
|
|
*
|
|
* @{
|
|
*
|
|
* @file
|
|
* @brief Internally used defines, macros and variable declarations.
|
|
*
|
|
* @author Simon Brummer <simon.brummer@posteo.de>
|
|
*/
|
|
|
|
#ifndef COMMON_H
|
|
#define COMMON_H
|
|
|
|
#include <stdint.h>
|
|
#include "assert.h"
|
|
#include "kernel_types.h"
|
|
#include "thread.h"
|
|
#include "mutex.h"
|
|
#include "net/gnrc/netapi.h"
|
|
#include "net/gnrc/tcp/tcb.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
* @brief Port number unspecified.
|
|
*
|
|
* @see https://www.ietf.org/rfc/rfc1700.txt
|
|
*/
|
|
#define PORT_UNSPEC (0)
|
|
|
|
/**
|
|
* @brief TCB status flags
|
|
* @{
|
|
*/
|
|
#define STATUS_PASSIVE (1 << 0)
|
|
#define STATUS_ALLOW_ANY_ADDR (1 << 1)
|
|
#define STATUS_NOTIFY_USER (1 << 2)
|
|
#define STATUS_WAIT_FOR_MSG (1 << 3)
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Defines for "eventloop" thread settings.
|
|
* @{
|
|
*/
|
|
#define TCP_EVENTLOOP_MSG_QUEUE_SIZE (8U)
|
|
#define TCP_EVENTLOOP_PRIO (THREAD_PRIORITY_MAIN - 2U)
|
|
#define TCP_EVENTLOOP_STACK_SIZE (THREAD_STACKSIZE_DEFAULT)
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Bitmasks for control bit field handling.
|
|
* @{
|
|
*/
|
|
#define MSK_FIN (0x0001)
|
|
#define MSK_SYN (0x0002)
|
|
#define MSK_RST (0x0004)
|
|
#define MSK_PSH (0x0008)
|
|
#define MSK_ACK (0x0010)
|
|
#define MSK_URG (0x0020)
|
|
#define MSK_FIN_ACK (0x0011)
|
|
#define MSK_SYN_ACK (0x0012)
|
|
#define MSK_RST_ACK (0x0014)
|
|
#define MSK_SYN_FIN_ACK (0x0013)
|
|
#define MSK_FIN_ACK_PSH (0x0019)
|
|
#define MSK_CTL (0x003F)
|
|
#define MSK_OFFSET (0xF000)
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Message types for GNRC TCPs internal message passing.
|
|
* @{
|
|
*/
|
|
#define MSG_TYPE_CONNECTION_TIMEOUT (GNRC_NETAPI_MSG_TYPE_ACK + 101)
|
|
#define MSG_TYPE_PROBE_TIMEOUT (GNRC_NETAPI_MSG_TYPE_ACK + 102)
|
|
#define MSG_TYPE_USER_SPEC_TIMEOUT (GNRC_NETAPI_MSG_TYPE_ACK + 103)
|
|
#define MSG_TYPE_RETRANSMISSION (GNRC_NETAPI_MSG_TYPE_ACK + 104)
|
|
#define MSG_TYPE_TIMEWAIT (GNRC_NETAPI_MSG_TYPE_ACK + 105)
|
|
#define MSG_TYPE_NOTIFY_USER (GNRC_NETAPI_MSG_TYPE_ACK + 106)
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Define for marking that time measurement is uninitialized.
|
|
*/
|
|
#define RTO_UNINITIALIZED (-1)
|
|
|
|
/**
|
|
* @brief Overflow tolerant comparison operators for sequence and
|
|
acknowledgement number comparison.
|
|
* @{
|
|
*/
|
|
#define LSS_32_BIT(x, y) (((int32_t) (x)) - ((int32_t) (y)) < 0)
|
|
#define LEQ_32_BIT(x, y) (((int32_t) (x)) - ((int32_t) (y)) <= 0)
|
|
#define GRT_32_BIT(x, y) (!LEQ_32_BIT(x, y))
|
|
#define GEQ_32_BIT(x, y) (!LSS_32_BOT(x, y))
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Check if a given sequence number falls into receive window.
|
|
*/
|
|
#define INSIDE_WND(l_ed, seq_num, r_ed) (LEQ_32_BIT(l_ed, seq_num) && LSS_32_BIT(seq_num, r_ed))
|
|
|
|
/**
|
|
* @brief Extract offset value from "offctl" field in TCP header.
|
|
*/
|
|
#define GET_OFFSET( x ) (((x) & MSK_OFFSET) >> 12)
|
|
|
|
/**
|
|
* @brief PID of GNRC TCP event handling thread
|
|
*/
|
|
extern kernel_pid_t gnrc_tcp_pid;
|
|
|
|
/**
|
|
* @brief Head of linked TCB list.
|
|
*/
|
|
extern gnrc_tcp_tcb_t *_list_tcb_head;
|
|
|
|
/**
|
|
* @brief Mutex to protect TCB list.
|
|
*/
|
|
extern mutex_t _list_tcb_lock;
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* COMMON_H */
|
|
/** @} */
|