src » sys » include » net

tcp.h File Reference

#include "net/sys.h"
#include "net/mem.h"
#include "net/pbuf.h"
#include "net/opt.h"
#include "net/ipv4/ip.h"
#include "net/ipv4/icmp.h"
#include "net/err.h"

Go to the source code of this file.

Data Structures

struct  tcp_hdr
struct  tcp_pcb
struct  tcp_pcb_listen
struct  tcp_seg

Defines

#define tcp_ack(pcb)
#define TCP_ACK   0x10
#define tcp_ack_now(pcb)
#define TCP_FAST_INTERVAL   200
#define TCP_FIN   0x01
#define TCP_FIN_WAIT_TIMEOUT   20000
#define TCP_HLEN   20
#define TCP_MSL   60000
#define TCP_OOSEQ_TIMEOUT   6
#define tcp_pcbs_sane()   1
#define TCP_PSH   0x08
#define TCP_REG(pcbs, npcb)
#define TCP_RMV(pcbs, npcb)
#define TCP_RST   0x04
#define TCP_SEQ_GEQ(a, b)   ((Int32)((a)-(b)) >= 0)
#define TCP_SEQ_GT(a, b)   ((Int32)((a)-(b)) > 0)
#define TCP_SEQ_LEQ(a, b)   ((Int32)((a)-(b)) <= 0)
#define TCP_SEQ_LT(a, b)   ((Int32)((a)-(b)) < 0)
#define TCP_SLOW_INTERVAL   500
#define tcp_sndbuf(pcb)   ((pcb)->snd_buf)
#define TCP_SYN   0x02
#define TCP_SYN_RCVD_TIMEOUT   20000
#define TCP_TCPLEN(seg)
#define TCP_TMR_INTERVAL   100
#define TCP_URG   0x20
#define TCPH_FLAGS(hdr)   (NTOHS((hdr)->_offset_flags) & 0xff)
#define TCPH_FLAGS_SET(hdr, flags)   (hdr)->_offset_flags = HTONS((TCPH_OFFSET(hdr) << 8) | (flags))
#define TCPH_OFFSET(hdr)   (NTOHS((hdr)->_offset_flags) >> 8)
#define TCPH_OFFSET_SET(hdr, offset)   (hdr)->_offset_flags = HTONS(((offset) << 8) | TCPH_FLAGS(hdr))
#define TF_ACK_DELAY   0x01
#define TF_ACK_NOW   0x02
#define TF_CLOSED   0x10
#define TF_GOT_FIN   0x20
#define TF_INFR   0x04
#define TF_RESET   0x08

Enumerations

enum  tcp_state {
  CLOSED = 0, LISTEN = 1, SYN_SENT = 2, SYN_RCVD = 3,
  ESTABLISHED = 4, FIN_WAIT_1 = 5, FIN_WAIT_2 = 6, CLOSE_WAIT = 7,
  CLOSING = 8, LAST_ACK = 9, TIME_WAIT = 10
}

Functions

void tcp_abort (struct tcp_pcb *pcb)
void tcp_accept (struct tcp_pcb *pcb, err_t(*accept)(void *arg, struct tcp_pcb *newpcb, err_t err))
void tcp_arg (struct tcp_pcb *pcb, void *arg)
err_t tcp_bind (struct tcp_pcb *pcb, struct ip_addr *ipaddr, uInt16 port)
err_t tcp_close (struct tcp_pcb *pcb)
err_t tcp_connect (struct tcp_pcb *pcb, struct ip_addr *ipaddr, uInt16 port, err_t(*connected)(void *arg, struct tcp_pcb *tpcb, err_t err))
err_t tcp_enqueue (struct tcp_pcb *pcb, void *dataptr, uInt16 len, uInt8 flags, uInt8 copy, uInt8 *optdata, uInt8 optlen)
void tcp_err (struct tcp_pcb *pcb, void(*err)(void *arg, err_t err))
void tcp_fasttmr (void)
void tcp_init (void)
void tcp_input (struct pbuf *p, struct netif *inp)
tcp_pcb * tcp_listen (struct tcp_pcb *pcb)
tcp_pcb * tcp_new (void)
uInt32 tcp_next_iss (void)
err_t tcp_output (struct tcp_pcb *pcb)
tcp_pcb * tcp_pcb_copy (struct tcp_pcb *pcb)
void tcp_pcb_purge (struct tcp_pcb *pcb)
void tcp_pcb_remove (struct tcp_pcb **pcblist, struct tcp_pcb *pcb)
void tcp_poll (struct tcp_pcb *pcb, err_t(*poll)(void *arg, struct tcp_pcb *tpcb), uInt8 interval)
void tcp_recv (struct tcp_pcb *pcb, err_t(*recv)(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err))
void tcp_recved (struct tcp_pcb *pcb, uInt16 len)
void tcp_rexmit_seg (struct tcp_pcb *pcb, struct tcp_seg *seg)
void tcp_rst (uInt32 seqno, uInt32 ackno, struct ip_addr *local_ip, struct ip_addr *remote_ip, uInt16 local_port, uInt16 remote_port)
tcp_seg * tcp_seg_copy (struct tcp_seg *seg)
uInt8 tcp_seg_free (struct tcp_seg *seg)
uInt8 tcp_segs_free (struct tcp_seg *seg)
err_t tcp_send_ctrl (struct tcp_pcb *pcb, uInt8 flags)
void tcp_sent (struct tcp_pcb *pcb, err_t(*sent)(void *arg, struct tcp_pcb *tpcb, uInt16 len))
void tcp_slowtmr (void)
void tcp_tmr (void)
err_t tcp_write (struct tcp_pcb *pcb, const void *dataptr, uInt16 len, uInt8 copy)

Variables

tcp_hdr PACK_STRUCT_STRUCT
tcp_pcb * tcp_active_pcbs
tcp_pcb_listen * tcp_listen_pcbs
uInt32 tcp_ticks
tcp_pcb * tcp_tmp_pcb
tcp_pcb * tcp_tw_pcbs

Define Documentation

#define tcp_ack ( pcb   ) 

Value:

if((pcb)->flags & TF_ACK_DELAY) { \
                            (pcb)->flags |= TF_ACK_NOW; \
                            tcp_output(pcb); \
                         } else { \
                            (pcb)->flags |= TF_ACK_DELAY; \
                         }

Definition at line 297 of file tcp.h.

#define TCP_ACK   0x10

Definition at line 119 of file tcp.h.

#define tcp_ack_now ( pcb   ) 

Value:

(pcb)->flags |= TF_ACK_NOW; \
                         tcp_output(pcb)

Definition at line 304 of file tcp.h.

#define TCP_FAST_INTERVAL   200

Definition at line 128 of file tcp.h.

#define TCP_FIN   0x01

Definition at line 115 of file tcp.h.

#define TCP_FIN_WAIT_TIMEOUT   20000

Definition at line 132 of file tcp.h.

#define TCP_HLEN   20

Definition at line 123 of file tcp.h.

#define TCP_MSL   60000

Definition at line 137 of file tcp.h.

#define TCP_OOSEQ_TIMEOUT   6

Definition at line 135 of file tcp.h.

 
#define tcp_pcbs_sane (  )     1

Definition at line 329 of file tcp.h.

#define TCP_PSH   0x08

Definition at line 118 of file tcp.h.

#define TCP_REG ( pcbs,
npcb   ) 

Value:

do { \
                            npcb->next = *pcbs; \
                            *pcbs = npcb; \
                            } while(0)

Definition at line 382 of file tcp.h.

#define TCP_RMV ( pcbs,
npcb   ) 

Value:

do { \
                            if(*pcbs == npcb) { \
                               *pcbs = (*pcbs)->next; \
                            } else for(tcp_tmp_pcb = *pcbs; tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \
                               if(tcp_tmp_pcb->next != NULL && tcp_tmp_pcb->next == npcb) { \
                                  tcp_tmp_pcb->next = npcb->next; \
                                  break; \
                               } \
                            } \
                            npcb->next = NULL; \
                            } while(0)

Definition at line 386 of file tcp.h.

#define TCP_RST   0x04

Definition at line 117 of file tcp.h.

#define TCP_SEQ_GEQ ( a,
b   )     ((Int32)((a)-(b)) >= 0)

Definition at line 113 of file tcp.h.

#define TCP_SEQ_GT ( a,
b   )     ((Int32)((a)-(b)) > 0)

Definition at line 112 of file tcp.h.

#define TCP_SEQ_LEQ ( a,
b   )     ((Int32)((a)-(b)) <= 0)

Definition at line 111 of file tcp.h.

#define TCP_SEQ_LT ( a,
b   )     ((Int32)((a)-(b)) < 0)

Definition at line 110 of file tcp.h.

#define TCP_SLOW_INTERVAL   500

Definition at line 130 of file tcp.h.

#define tcp_sndbuf ( pcb   )     ((pcb)->snd_buf)

Definition at line 81 of file tcp.h.

Referenced by netconn_write().

#define TCP_SYN   0x02

Definition at line 116 of file tcp.h.

#define TCP_SYN_RCVD_TIMEOUT   20000

Definition at line 133 of file tcp.h.

#define TCP_TCPLEN ( seg   ) 

Value:

((seg)->len + ((TCPH_FLAGS((seg)->tcphdr) & TCP_FIN || \
                                        TCPH_FLAGS((seg)->tcphdr) & TCP_SYN)? 1: 0))

Definition at line 156 of file tcp.h.

#define TCP_TMR_INTERVAL   100

Definition at line 125 of file tcp.h.

Referenced by tcpip_tcp_timer(), and tcpip_thread().

#define TCP_URG   0x20

Definition at line 120 of file tcp.h.

#define TCPH_FLAGS ( hdr   )     (NTOHS((hdr)->_offset_flags) & 0xff)

Definition at line 151 of file tcp.h.

#define TCPH_FLAGS_SET ( hdr,
flags   )     (hdr)->_offset_flags = HTONS((TCPH_OFFSET(hdr) << 8) | (flags))

Definition at line 154 of file tcp.h.

#define TCPH_OFFSET ( hdr   )     (NTOHS((hdr)->_offset_flags) >> 8)

Definition at line 150 of file tcp.h.

#define TCPH_OFFSET_SET ( hdr,
offset   )     (hdr)->_offset_flags = HTONS(((offset) << 8) | TCPH_FLAGS(hdr))

Definition at line 153 of file tcp.h.

#define TF_ACK_DELAY   0x01

Definition at line 204 of file tcp.h.

#define TF_ACK_NOW   0x02

Definition at line 205 of file tcp.h.

#define TF_CLOSED   0x10

Definition at line 208 of file tcp.h.

#define TF_GOT_FIN   0x20

Definition at line 209 of file tcp.h.

#define TF_INFR   0x04

Definition at line 206 of file tcp.h.

#define TF_RESET   0x08

Definition at line 207 of file tcp.h.

Enumeration Type Documentation

enum tcp_state

Enumerator:
CLOSED 
LISTEN 
SYN_SENT 
SYN_RCVD 
ESTABLISHED 
FIN_WAIT_1 
FIN_WAIT_2 
CLOSE_WAIT 
CLOSING 
LAST_ACK 
TIME_WAIT 

Definition at line 159 of file tcp.h.

Function Documentation

void tcp_abort ( struct tcp_pcb *  pcb  ) 

Referenced by do_delconn().

void tcp_accept ( struct tcp_pcb *  pcb,
err_t(*)(void *arg, struct tcp_pcb *newpcb, err_t err)  accept 
)

Referenced by do_delconn(), and do_listen().

void tcp_arg ( struct tcp_pcb *  pcb,
void *  arg 
)

Referenced by do_delconn(), do_listen(), and setup_tcp().

err_t tcp_bind ( struct tcp_pcb *  pcb,
struct ip_addr *  ipaddr,
uInt16  port 
)

Referenced by do_bind().

err_t tcp_close ( struct tcp_pcb *  pcb  ) 

Referenced by do_close(), and do_delconn().

err_t tcp_connect ( struct tcp_pcb *  pcb,
struct ip_addr *  ipaddr,
uInt16  port,
err_t(*)(void *arg, struct tcp_pcb *tpcb, err_t err)  connected 
)

Referenced by do_connect().

err_t tcp_enqueue ( struct tcp_pcb *  pcb,
void *  dataptr,
uInt16  len,
uInt8  flags,
uInt8  copy,
uInt8 *  optdata,
uInt8  optlen 
)

void tcp_err ( struct tcp_pcb *  pcb,
void(*)(void *arg, err_t err)  err 
)

Referenced by do_delconn(), and setup_tcp().

void tcp_fasttmr ( void   ) 

void tcp_init ( void   ) 

Referenced by tcpip_thread().

void tcp_input ( struct pbuf *  p,
struct netif *  inp 
)

struct tcp_pcb* tcp_listen ( struct tcp_pcb *  pcb  ) 

Referenced by do_listen().

struct tcp_pcb* tcp_new ( void   ) 

Referenced by do_bind(), and do_connect().

uInt32 tcp_next_iss ( void   ) 

err_t tcp_output ( struct tcp_pcb *  pcb  ) 

Referenced by do_write().

struct tcp_pcb* tcp_pcb_copy ( struct tcp_pcb *  pcb  ) 

void tcp_pcb_purge ( struct tcp_pcb *  pcb  ) 

void tcp_pcb_remove ( struct tcp_pcb **  pcblist,
struct tcp_pcb *  pcb 
)

void tcp_poll ( struct tcp_pcb *  pcb,
err_t(*)(void *arg, struct tcp_pcb *tpcb)  poll,
uInt8  interval 
)

Referenced by do_delconn(), and setup_tcp().

void tcp_recv ( struct tcp_pcb *  pcb,
err_t(*)(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err)  recv 
)

Referenced by do_delconn(), and setup_tcp().

void tcp_recved ( struct tcp_pcb *  pcb,
uInt16  len 
)

Referenced by do_recv().

void tcp_rexmit_seg ( struct tcp_pcb *  pcb,
struct tcp_seg *  seg 
)

void tcp_rst ( uInt32  seqno,
uInt32  ackno,
struct ip_addr *  local_ip,
struct ip_addr *  remote_ip,
uInt16  local_port,
uInt16  remote_port 
)

struct tcp_seg* tcp_seg_copy ( struct tcp_seg *  seg  ) 

uInt8 tcp_seg_free ( struct tcp_seg *  seg  ) 

uInt8 tcp_segs_free ( struct tcp_seg *  seg  ) 

err_t tcp_send_ctrl ( struct tcp_pcb *  pcb,
uInt8  flags 
)

void tcp_sent ( struct tcp_pcb *  pcb,
err_t(*)(void *arg, struct tcp_pcb *tpcb, uInt16 len)  sent 
)

Referenced by do_delconn(), and setup_tcp().

void tcp_slowtmr ( void   ) 

void tcp_tmr ( void   ) 

Referenced by tcpip_tcp_timer().

err_t tcp_write ( struct tcp_pcb *  pcb,
const void *  dataptr,
uInt16  len,
uInt8  copy 
)

Referenced by do_write().

Variable Documentation

struct tcp_hdr PACK_STRUCT_STRUCT

struct tcp_pcb* tcp_active_pcbs

struct tcp_pcb_listen* tcp_listen_pcbs

uInt32 tcp_ticks

struct tcp_pcb* tcp_tmp_pcb

struct tcp_pcb* tcp_tw_pcbs

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