gnrc_tcp_common.h

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/*
 * 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.
 */
 
#pragma once

 
#include <stdint.h>
#include "thread.h"
#include "mutex.h"
#include "evtimer.h"
#include "net/gnrc/netapi.h"
#include "net/gnrc/tcp/tcb.h"
 
#ifdef __cplusplus
extern "C" {
#endif

#define PORT_UNSPEC (0)

#define STATUS_LISTENING      (1 << 0) 
#define STATUS_ALLOW_ANY_ADDR (1 << 1) 
#define STATUS_NOTIFY_USER    (1 << 2) 
#define STATUS_ACCEPTED       (1 << 3) 
#define STATUS_LOCKED         (1 << 4) 

#define TCP_EVENTLOOP_PRIO       (THREAD_PRIORITY_MAIN - 2U) 
#define TCP_EVENTLOOP_STACK_SIZE (THREAD_STACKSIZE_DEFAULT)  

#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) 

#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) 

#define RTO_UNINITIALIZED (-1) 

#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)) 

#define INSIDE_WND(l_ed, seq_num, r_ed) (LEQ_32_BIT(l_ed, seq_num) && LSS_32_BIT(seq_num, r_ed))

#define GET_OFFSET( x ) (((x) & MSK_OFFSET) >> 12)

#define TCP_DEBUG_ENTER DEBUG("GNRC_TCP: Enter \"%s\", File: %s(%d)\n", \
                              DEBUG_FUNC, __FILE__, __LINE__)

#define TCP_DEBUG_LEAVE DEBUG("GNRC_TCP: Leave \"%s\", File: %s(%d)\n", \
                              DEBUG_FUNC, __FILE__, __LINE__)

#define TCP_DEBUG_ERROR(msg) DEBUG("GNRC_TCP: Error: \"%s\", Func: %s, File: %s(%d)\n", \
                                   msg, DEBUG_FUNC, __FILE__, __LINE__)

#define TCP_DEBUG_INFO(msg) DEBUG("GNRC_TCP: Info: \"%s\", Func: %s, File: %s(%d)\n", \
                                  msg, DEBUG_FUNC, __FILE__, __LINE__)

typedef struct {
    gnrc_tcp_tcb_t *head; 
    mutex_t lock;         
} _gnrc_tcp_common_tcb_list_t;

_gnrc_tcp_common_tcb_list_t *_gnrc_tcp_common_get_tcb_list(void);
 
#ifdef __cplusplus
}
#endif