tcb.h
Go to the documentation of this file.
1 /*
2  * Copyright (C) 2015-2017 Simon Brummer
3  *
4  * This file is subject to the terms and conditions of the GNU Lesser
5  * General Public License v2.1. See the file LICENSE in the top level
6  * directory for more details.
7  */
8 
20 #ifndef NET_GNRC_TCP_TCB_H
21 #define NET_GNRC_TCP_TCB_H
22 
23 #include <stdint.h>
24 #include "ringbuffer.h"
25 #include "mutex.h"
26 #include "evtimer_msg.h"
27 #include "evtimer_mbox.h"
28 #include "msg.h"
29 #include "mbox.h"
30 #include "net/gnrc/pkt.h"
31 #include "config.h"
32 
33 #ifdef MODULE_GNRC_IPV6
34 #include "net/gnrc/ipv6.h"
35 #endif
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
44 typedef struct sock_tcp {
45  uint8_t address_family;
46 #ifdef MODULE_GNRC_IPV6
47  uint8_t local_addr[sizeof(ipv6_addr_t)];
48  uint8_t peer_addr[sizeof(ipv6_addr_t)];
49  int8_t ll_iface;
50 #endif
51  uint16_t local_port;
52  uint16_t peer_port;
53  uint8_t state;
54  uint8_t status;
55  uint32_t snd_una;
56  uint32_t snd_nxt;
57  uint16_t snd_wnd;
58  uint32_t snd_wl1;
59  uint32_t snd_wl2;
60  uint32_t rcv_nxt;
61  uint16_t rcv_wnd;
62  uint32_t iss;
63  uint32_t irs;
64  uint16_t mss;
65  uint32_t rtt_start;
66  int32_t rtt_var;
67  int32_t srtt;
68  int32_t rto;
69  uint8_t retries;
75  uint8_t *rcv_buf_raw;
79  struct sock_tcp *next;
81 
85 typedef struct sock_tcp_queue {
88  size_t tcbs_len;
90 
94 #define GNRC_TCP_TCB_QUEUE_INIT { MUTEX_INIT, NULL, 0 }
95 
96 #ifdef __cplusplus
97 }
98 #endif
99 #endif /* NET_GNRC_TCP_TCB_H */
Message box based evtimer event.
IPC-based evtimer definitions.
Definitions for GNRC's IPv6 implementation.
Mailbox API.
Mutex for thread synchronization.
General definitions for network packets and their helper functions.
A utility for storing and retrieving byte data using a ring buffer.
Message box event definition.
Definition: evtimer_mbox.h:33
IPC-message event.
Definition: evtimer_msg.h:40
Type to represent parts (either headers or payload) of a packet, called snips.
Definition: pkt.h:108
Mailbox struct definition.
Definition: mbox.h:41
Mutex structure.
Definition: mutex.h:146
Ringbuffer.
Definition: ringbuffer.h:36
TCP queue type.
Definition: sock_types.h:114
mutex_t lock
Mutex for access synchronization.
Definition: tcb.h:86
gnrc_tcp_tcb_t * tcbs
Pointer to TCB sequence.
Definition: tcb.h:87
size_t tcbs_len
Number of TCBs behind member tcbs.
Definition: tcb.h:88
TCP sock type.
Definition: sock_types.h:101
mutex_t fsm_lock
Mutex for FSM access synchronization.
Definition: tcb.h:77
uint8_t address_family
Address Family of local_addr / peer_addr.
Definition: tcb.h:45
uint16_t local_port
Local connections port number.
Definition: tcb.h:51
uint16_t snd_wnd
Send window.
Definition: tcb.h:57
uint8_t state
Connections state.
Definition: tcb.h:53
ringbuffer_t rcv_buf
Receive buffer data structure.
Definition: tcb.h:76
uint8_t peer_addr[sizeof(ipv6_addr_t)]
Peer IP address.
Definition: tcb.h:48
evtimer_mbox_event_t event_misc
General purpose event.
Definition: tcb.h:72
evtimer_msg_event_t event_timeout
Timeout event.
Definition: tcb.h:71
int32_t rto
Retransmission timeout duration.
Definition: tcb.h:68
evtimer_msg_event_t event_retransmit
Retransmission event.
Definition: tcb.h:70
uint32_t snd_una
Send unacknowledged.
Definition: tcb.h:55
uint32_t iss
Initial sequence sumber.
Definition: tcb.h:62
uint8_t status
A connections status flags.
Definition: tcb.h:54
uint16_t mss
The peers MSS.
Definition: tcb.h:64
uint16_t rcv_wnd
Receive window.
Definition: tcb.h:61
gnrc_pktsnip_t * pkt_retransmit
Pointer to packet in "retransmit queue".
Definition: tcb.h:73
mbox_t * mbox
TCB mbox for synchronization.
Definition: tcb.h:74
int32_t rtt_var
Round trip time variance.
Definition: tcb.h:66
uint32_t snd_wl2
AckNo.
Definition: tcb.h:59
uint32_t snd_nxt
Send next.
Definition: tcb.h:56
uint32_t rtt_start
Timer value for rtt estimation.
Definition: tcb.h:65
uint32_t snd_wl1
SeqNo.
Definition: tcb.h:58
int8_t ll_iface
Link layer interface id to use.
Definition: tcb.h:49
uint32_t irs
Initial received sequence number.
Definition: tcb.h:63
mutex_t function_lock
Mutex for function call synchronization.
Definition: tcb.h:78
struct sock_tcp * next
Pointer next TCB.
Definition: tcb.h:79
uint8_t local_addr[sizeof(ipv6_addr_t)]
Local IP address.
Definition: tcb.h:47
uint16_t peer_port
Peer connections port number.
Definition: tcb.h:52
int32_t srtt
Smoothed round trip time.
Definition: tcb.h:67
uint32_t rcv_nxt
Receive next.
Definition: tcb.h:60
uint8_t * rcv_buf_raw
Pointer to the receive buffer.
Definition: tcb.h:75
uint8_t retries
Number of retransmissions.
Definition: tcb.h:69
ztimer default configuration
struct sock_tcp_queue gnrc_tcp_tcb_queue_t
Transmission control block queue.
struct sock_tcp gnrc_tcp_tcb_t
Transmission control block of GNRC TCP.
Data type to represent an IPv6 address.
Definition: addr.h:72