winscard_msg_srv.c File Reference

client/server communication (on the server side only) More...

#include "config.h"
#include <fcntl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/un.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include "misc.h"
#include "pcscd.h"
#include "winscard.h"
#include "debuglog.h"
#include "winscard_msg.h"

Go to the source code of this file.

Functions
static int	ProcessCommonChannelRequest (uint32_t *pdwClientID)
	Accepts a Client connection.
INTERNAL int32_t	InitializeSocket (void)
	Prepares the communication channel used by the server to talk to the clients.
INTERNAL int32_t	ProcessEventsServer (uint32_t *pdwClientID)
	Looks for messages sent by clients.

Variables
static int	commonSocket = 0
	Socket to a file, used for clients-server communication.
char	AraKiri

Detailed Description

client/server communication (on the server side only)

A file based socket (commonSocket) is used to send/receive only messages among clients and server.
The messages' data are passed throw a memory mapped file: sharedSegmentMsg.

Definition in file winscard_msg_srv.c.

Function Documentation

InitializeSocket()

INTERNAL int32_t InitializeSocket

(

void

)

Prepares the communication channel used by the server to talk to the clients.

This is called by the server to create a socket for local IPC with the clients. The socket is associated to the file PCSCLITE_CSOCK_NAME. Each client will open a connection to this socket.

Returns

Error code.

Return values

0	Success
-1	Can not create the socket or Can not bind the socket to the file PCSCLITE_CSOCK_NAME or Can not put the socket in listen mode.

Definition at line 120 of file winscard_msg_srv.c.

ProcessCommonChannelRequest()

static int ProcessCommonChannelRequest ( uint32_t *  pdwClientID )

static

Accepts a Client connection.

Called by ProcessEventsServer().

Parameters

[out]

pdwClientID

Connection ID used to reference the Client.

Returns

Error code.

Return values

0	Success.
-1	Can not establish the connection.

Definition at line 84 of file winscard_msg_srv.c.

ProcessEventsServer()

INTERNAL int32_t ProcessEventsServer

(

uint32_t *

pdwClientID

)

Looks for messages sent by clients.

This is called by the Server's function SVCServiceRunLoop().

Parameters

[out]

pdwClientID

Connection ID used to reference the Client.

Returns

Error code.

Return values

0	Success.
-1	Error accessing the communication channel.
-2	EINTR
2	Timeout.

Definition at line 207 of file winscard_msg_srv.c.

Variable Documentation

AraKiri

char AraKiri

extern

Definition at line 72 of file pcscdaemon.c.

commonSocket

int commonSocket = 0

static

Socket to a file, used for clients-server communication.

Definition at line 70 of file winscard_msg_srv.c.