#include <linux/init.h>
#include <linux/slab.h>
#include <net/llc_sap.h>
#include <net/llc_conn.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <net/llc_c_ev.h>
#include <net/llc_c_ac.h>
#include <net/llc_c_st.h>
#include <net/llc_pdu.h>

Macros
#define	dprintk(args...)

Functions
int	llc_conn_state_process (struct sock sk, struct sk_buff skb)

void	llc_conn_send_pdu (struct sock sk, struct sk_buff skb)

void	llc_conn_rtn_pdu (struct sock sk, struct sk_buff skb)

void	llc_conn_resend_i_pdu_as_cmd (struct sock *sk, u8 nr, u8 first_p_bit)

void	llc_conn_resend_i_pdu_as_rsp (struct sock *sk, u8 nr, u8 first_f_bit)

int	llc_conn_remove_acked_pdus (struct sock sk, u8 nr, u16 how_many_unacked)

struct sock *	llc_lookup_established (struct llc_sap sap, struct llc_addr daddr, struct llc_addr *laddr)

u8	llc_data_accept_state (u8 state)

void __init	llc_build_offset_table (void)

void	llc_sap_add_socket (struct llc_sap sap, struct sock sk)

void	llc_sap_remove_socket (struct llc_sap sap, struct sock sk)

void	llc_conn_handler (struct llc_sap sap, struct sk_buff skb)

struct sock *	llc_sk_alloc (struct net net, int family, gfp_t priority, struct proto prot)

void	llc_sk_free (struct sock *sk)

void	llc_sk_reset (struct sock *sk)

Variables
int	sysctl_llc2_ack_timeout = LLC2_ACK_TIME * HZ

int	sysctl_llc2_p_timeout = LLC2_P_TIME * HZ

int	sysctl_llc2_rej_timeout = LLC2_REJ_TIME * HZ

int	sysctl_llc2_busy_timeout = LLC2_BUSY_TIME * HZ

Macro Definition Documentation

#define dprintk ( args... )

Definition at line 29 of file llc_conn.c.

Function Documentation

void __init llc_build_offset_table ( void )

llc_build_offset_table - builds offset table of connection

Fills offset table of connection state transition table (llc_offset_table).

Definition at line 660 of file llc_conn.c.

void llc_conn_handler	(	struct llc_sap *	sap,
		struct sk_buff *	skb
	)

Definition at line 787 of file llc_conn.c.

int llc_conn_remove_acked_pdus	(	struct sock *	sk,
		u8	nr,
		u16 *	how_many_unacked
	)

llc_conn_remove_acked_pdus - Removes acknowledged pdus from tx queue : active connection nr: NR how_many_unacked: size of pdu_unack_q after removing acked pdus

Removes acknowledged pdus from transmit queue (pdu_unack_q). Returns the number of pdus that removed from queue.

Definition at line 312 of file llc_conn.c.

void llc_conn_resend_i_pdu_as_cmd	(	struct sock *	sk,
		u8	nr,
		u8	first_p_bit
	)

llc_conn_resend_i_pdu_as_cmd - resend all all unacknowledged I PDUs : active connection : NR : p_bit value of first pdu

Resend all unacknowledged I PDUs, starting with the NR; send first as command PDU with P bit equal first_p_bit; if more than one send subsequent as command PDUs with P bit equal zero (0).

Definition at line 229 of file llc_conn.c.

void llc_conn_resend_i_pdu_as_rsp	(	struct sock *	sk,
		u8	nr,
		u8	first_f_bit
	)

llc_conn_resend_i_pdu_as_rsp - Resend all unacknowledged I PDUs : active connection. : NR : f_bit value of first pdu.

Resend all unacknowledged I PDUs, starting with the NR; send first as response PDU with F bit equal first_f_bit; if more than one send subsequent as response PDUs with F bit equal zero (0).

Definition at line 272 of file llc_conn.c.

void llc_conn_rtn_pdu	(	struct sock *	sk,
		struct sk_buff *	skb
	)

llc_conn_rtn_pdu - sends received data pdu to upper layer : Active connection : Received data frame

Sends received data pdu to upper layer (by using indicate function). Prepares service parameters (prim and prim_data). calling indication function will be done in llc_conn_state_process.

Definition at line 212 of file llc_conn.c.

void llc_conn_send_pdu	(	struct sock *	sk,
		struct sk_buff *	skb
	)

Definition at line 196 of file llc_conn.c.

int llc_conn_state_process	(	struct sock *	sk,
		struct sk_buff *	skb
	)

llc_conn_state_process - sends event to connection state machine : connection : occurred event

Sends an event to connection state machine. After processing event (executing it's actions and changing state), upper layer will be indicated or confirmed, if needed. Returns 0 for success, 1 for failure. The socket lock has to be held before calling this function.

Definition at line 59 of file llc_conn.c.

u8 llc_data_accept_state ( u8 state )

llc_data_accept_state - designates if in this state data can be sent. : state of connection.

Returns 0 if data can be sent, 1 otherwise.

Definition at line 629 of file llc_conn.c.

struct sock* llc_lookup_established	(	struct llc_sap *	sap,
		struct llc_addr *	daddr,
		struct llc_addr *	laddr
	)

read

Definition at line 533 of file llc_conn.c.

void llc_sap_add_socket	(	struct llc_sap *	sap,
		struct sock *	sk
	)

llc_sap_add_socket - adds a socket to a SAP : SAP : socket

This function adds a socket to the hash tables of a SAP.

Definition at line 713 of file llc_conn.c.

void llc_sap_remove_socket	(	struct llc_sap *	sap,
		struct sock *	sk
	)

llc_sap_remove_socket - removes a socket from SAP : SAP : socket

This function removes a connection from the hash tables of a SAP if the connection was in this list.

Definition at line 737 of file llc_conn.c.

struct sock* llc_sk_alloc	(	struct net *	net,
		int	family,
		gfp_t	priority,
		struct proto *	prot
	)

read

llc_sk_alloc - Allocates LLC sock : upper layer protocol family : for allocation (GFP_KERNEL, GFP_ATOMIC, etc)

Allocates a LLC sock and initializes it. Returns the new LLC sock or NULL if there's no memory available for one

Definition at line 934 of file llc_conn.c.

void llc_sk_free ( struct sock * sk )

llc_sk_free - Frees a LLC socket - socket to free

Frees a LLC socket

Definition at line 957 of file llc_conn.c.

void llc_sk_reset ( struct sock * sk )

llc_sk_reset - resets a connection : LLC socket to reset

Resets a connection to the out of service state. Stops its timers and frees any frames in the queues of the connection.

Definition at line 994 of file llc_conn.c.

Variable Documentation

int sysctl_llc2_ack_timeout = LLC2_ACK_TIME * HZ

Definition at line 44 of file llc_conn.c.

int sysctl_llc2_busy_timeout = LLC2_BUSY_TIME * HZ

Definition at line 47 of file llc_conn.c.

int sysctl_llc2_p_timeout = LLC2_P_TIME * HZ

Definition at line 45 of file llc_conn.c.

int sysctl_llc2_rej_timeout = LLC2_REJ_TIME * HZ

Definition at line 46 of file llc_conn.c.

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation