tcp_conn.h File Reference

TCP protocol support. More...

#include "ip_addr.h"
#include "locking.h"

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Data Structures
struct	tcp_conn_alias
	TCP port alias structure. More...
struct	tcp_connection
	TCP connection structure. More...
struct	tcp_req
Defines
#define	DEFAULT_TCP_CONNECT_TIMEOUT   10
#define	DEFAULT_TCP_CONNECTION_LIFETIME   120
#define	DEFAULT_TCP_MAX_CONNECTIONS   2048
#define	DEFAULT_TCP_SEND_TIMEOUT   10
#define	F_CONN_NON_BLOCKING   1
#define	F_CONN_REMOVED   2
#define	init_tcp_req(r)
#define	TCP_ALIAS_HASH_SIZE   1024
#define	TCP_BUF_SIZE   65535
#define	TCP_CHILD_SELECT_TIMEOUT   2
#define	TCP_CHILD_TIMEOUT   5
#define	TCP_CON_MAX_ALIASES   4
#define	tcp_id_hash(id)   (id&(TCP_ID_HASH_SIZE-1))
#define	TCP_ID_HASH_SIZE   1024
#define	TCP_MAIN_SELECT_TIMEOUT   5
#define	tcpconn_listadd(head, c, next, prev)
	add a tcpconn to a list list head, new element, next member, prev member
#define	tcpconn_listrm(head, c, next, prev)
	remove a tcpconn from a list
#define	TCPCONN_LOCK   lock_get(tcpconn_lock);
#define	TCPCONN_UNLOCK   lock_release(tcpconn_lock);
Enumerations
enum	conn_cmds {   CONN_DESTROY = -3, CONN_ERROR = -2, CONN_EOF = -1, CONN_RELEASE,   CONN_GET_FD, CONN_NEW }
enum	tcp_conn_states {   S_CONN_ERROR = -2, S_CONN_BAD = -1, S_CONN_OK = 0, S_CONN_INIT,   S_CONN_EOF, S_CONN_ACCEPT, S_CONN_CONNECT }
enum	tcp_req_errors {   TCP_REQ_INIT, TCP_REQ_OK, TCP_READ_ERROR, TCP_REQ_OVERRUN,   TCP_REQ_BAD_LEN }
enum	tcp_req_states {   H_SKIP_EMPTY, H_SKIP, H_LF, H_LFCR,   H_BODY, H_STARTWS, H_CONT_LEN1, H_CONT_LEN2,   H_CONT_LEN3, H_CONT_LEN4, H_CONT_LEN5, H_CONT_LEN6,   H_CONT_LEN7, H_CONT_LEN8, H_CONT_LEN9, H_CONT_LEN10,   H_CONT_LEN11, H_CONT_LEN12, H_CONT_LEN13, H_L_COLON,   H_CONT_LEN_BODY, H_CONT_LEN_BODY_PARSE, H_PING_CRLFCRLF, H_SKIP_EMPTY_CR_FOUND,   H_SKIP_EMPTY_CRLF_FOUND, H_SKIP_EMPTY_CRLFCR_FOUND }
Functions
static unsigned	tcp_addr_hash (struct ip_addr *ip, unsigned short port)

---

Detailed Description

TCP protocol support.

Definition in file tcp_conn.h.

---

Define Documentation

#define DEFAULT_TCP_CONNECT_TIMEOUT   10

If a connect doesn't complete in this time, timeout

Definition at line 49 of file tcp_conn.h.

#define DEFAULT_TCP_CONNECTION_LIFETIME   120

TCP connection lifetime, in seconds

Definition at line 47 of file tcp_conn.h.

Referenced by tls_tcpconn_init().

#define DEFAULT_TCP_MAX_CONNECTIONS   2048

Maximum number of connections

Definition at line 50 of file tcp_conn.h.

#define DEFAULT_TCP_SEND_TIMEOUT   10

If a send can't write for more then 10s, timeout

Definition at line 48 of file tcp_conn.h.

#define F_CONN_NON_BLOCKING   1

Definition at line 58 of file tcp_conn.h.

#define F_CONN_REMOVED   2

no longer in "main" listen fd list

Definition at line 59 of file tcp_conn.h.

#define init_tcp_req

(

r

)

Definition at line 139 of file tcp_conn.h.

#define TCP_ALIAS_HASH_SIZE   1024

Definition at line 172 of file tcp_conn.h.

Referenced by tcp_addr_hash().

#define TCP_BUF_SIZE   65535

TCP buffer size

Definition at line 46 of file tcp_conn.h.

Referenced by tls_read().

#define TCP_CHILD_SELECT_TIMEOUT   2

the same as above but for children

Definition at line 54 of file tcp_conn.h.

#define TCP_CHILD_TIMEOUT   5

After 5 seconds, the child "returns" the connection to the tcp master process

Definition at line 51 of file tcp_conn.h.

#define TCP_CON_MAX_ALIASES   4

Maximum number of port aliases

Definition at line 44 of file tcp_conn.h.

#define tcp_id_hash

(

id

)

(id&(TCP_ID_HASH_SIZE-1))

Definition at line 187 of file tcp_conn.h.

#define TCP_ID_HASH_SIZE   1024

Definition at line 173 of file tcp_conn.h.

#define TCP_MAIN_SELECT_TIMEOUT   5

how often "tcp main" checks for timeout

Definition at line 53 of file tcp_conn.h.

#define tcpconn_listadd	(	head,
		c,
		next,
		prev		)

add a tcpconn to a list list head, new element, next member, prev member

Definition at line 150 of file tcp_conn.h.

#define tcpconn_listrm	(	head,
		c,
		next,
		prev		)

Value:

do{ \
      if ((head)==(c)) (head)=(c)->next; \
      if ((c)->next) (c)->next->prev=(c)->prev; \
      if ((c)->prev) (c)->prev->next=(c)->next; \
   }while(0)

remove a tcpconn from a list

Definition at line 161 of file tcp_conn.h.

#define TCPCONN_LOCK   lock_get(tcpconn_lock);

Definition at line 169 of file tcp_conn.h.

#define TCPCONN_UNLOCK   lock_release(tcpconn_lock);

Definition at line 170 of file tcp_conn.h.

---

Enumeration Type Documentation

enum conn_cmds

Enumerator:

CONN_DESTROY
CONN_ERROR
CONN_EOF
CONN_RELEASE
CONN_GET_FD
CONN_NEW

Definition at line 77 of file tcp_conn.h.

enum tcp_conn_states

Enumerator:

S_CONN_ERROR
S_CONN_BAD
S_CONN_OK
S_CONN_INIT
S_CONN_EOF
S_CONN_ACCEPT
S_CONN_CONNECT

Definition at line 72 of file tcp_conn.h.

enum tcp_req_errors

Enumerator:

TCP_REQ_INIT
TCP_REQ_OK
TCP_READ_ERROR
TCP_REQ_OVERRUN
TCP_REQ_BAD_LEN

Definition at line 62 of file tcp_conn.h.

enum tcp_req_states

Enumerator:

H_SKIP_EMPTY
H_SKIP
H_LF
H_LFCR
H_BODY
H_STARTWS
H_CONT_LEN1
H_CONT_LEN2
H_CONT_LEN3
H_CONT_LEN4
H_CONT_LEN5
H_CONT_LEN6
H_CONT_LEN7
H_CONT_LEN8
H_CONT_LEN9
H_CONT_LEN10
H_CONT_LEN11
H_CONT_LEN12
H_CONT_LEN13
H_L_COLON
H_CONT_LEN_BODY
H_CONT_LEN_BODY_PARSE
H_PING_CRLFCRLF
H_SKIP_EMPTY_CR_FOUND
H_SKIP_EMPTY_CRLF_FOUND
H_SKIP_EMPTY_CRLFCR_FOUND

Definition at line 64 of file tcp_conn.h.

---

Function Documentation

static unsigned tcp_addr_hash	(	struct ip_addr *	ip,
		unsigned short	port
	)			[inline, static]

Definition at line 175 of file tcp_conn.h.

References ip_addr::addr32, ip_addr::len, LM_CRIT, TCP_ALIAS_HASH_SIZE, and ip_addr::u.