emNet NetBIOS (Sample)
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| IP_NETBIOS_Start_Sample.c | |
|---|---|
| Requires modifications | No |
| Download | IP_NETBIOS_Start_Sample.c |
This Sample sets up a responder to simple NetBIOS requests and will respond upon receiving a request with a configured NetBIOS name. The default name to respond to is "EVALBOARD".
To ping the Target, use the command line:
> ping EVALBOARD
The PC now sends a discover request to find the Target named "EVALBOARD". The Target responds and the PC can now ping the Target with the discovered IP.
Code
/*********************************************************************
* (c) SEGGER Microcontroller GmbH *
* The Embedded Experts *
* www.segger.com *
**********************************************************************
-------------------------- END-OF-HEADER -----------------------------
Purpose : Sample program for embOS & emNet
The sample will setup a responder to simple NetBIOS requests
and will respond upon receiving a request with a configured
NetBIOS name. The default name to respond to is "EVALBOARD".
To ping the target, use the command line on your PC:
> ping EVALBOARD
The PC now sends a discover request to find the target named
"EVALBOARD". The target responds and the PC can now ping the
target with the discovered IP.
The following is a sample of the output to the terminal window:
0:000 MainTask - INIT: Init started. Version 2.13.11
0:002 MainTask - DRIVER: Found PHY with Id 0x181 at addr 0x1F
0:003 MainTask - INIT: Link is down
0:003 MainTask - INIT: Init completed
0:003 IP_Task - INIT: IP_Task started
0:004 MainTask - NetBIOS: NBNS is listening on port 137.
3:000 IP_Task - LINK: Link state changed: Full duplex, 100 MHz
4:000 IP_Task - DHCPc: Sending discover!
4:509 IP_Task - DHCPc: IFace 0: Offer: IP: 192.168.11.63, Mask: 255.255.0.0, GW: 192.168.11.1.
5:000 IP_Task - DHCPc: IP addr. checked, no conflicts
5:000 IP_Task - DHCPc: Sending Request.
5:001 IP_Task - DHCPc: IFace 0: Using IP: 192.168.11.63, Mask: 255.255.0.0, GW: 192.168.11.1.
10:525 IP_Task - NetBIOS: Received packet.
10:526 IP_Task - NetBIOS: NBNS query received from 192.168.88.1
10:526 IP_Task - NetBIOS: NBNS answer sent to 192.168.88.1
Notes : For compatibility with interfaces that need to connect in
any way this sample calls connect and disconnect routines
that might not be needed in all cases.
This sample can be used for Ethernet and dial-up interfaces
and is configured to use the last registered interface as
its main interface.
*/
#include "RTOS.h"
#include "BSP.h"
#include "IP.h"
/*********************************************************************
*
* Configuration
*
**********************************************************************
*/
#define USE_RX_TASK 0 // 0: Packets are read in ISR, 1: Packets are read in a task of its own.
//
// Task priorities.
//
enum {
TASK_PRIO_IP_TASK = 150 // Priority should be higher than all IP application tasks.
#if USE_RX_TASK
,TASK_PRIO_IP_RX_TASK // Must be the highest priority of all IP related tasks.
#endif
};
/*********************************************************************
*
* Static data
*
**********************************************************************
*/
static IP_HOOK_ON_STATE_CHANGE _StateChangeHook;
static int _IFaceId;
//
// NetBIOS name table.
//
IP_NETBIOS_NAME _aNetNames[] = {
{ "EVALBOARD", 9 },
{ 0 , 0 }
};
//
// Task stacks and Task-Control-Blocks.
//
static OS_STACKPTR int _IPStack[TASK_STACK_SIZE_IP_TASK/sizeof(int)]; // Stack of the IP_Task.
static OS_TASK _IPTCB; // Task-Control-Block of the IP_Task.
#if USE_RX_TASK
static OS_STACKPTR int _IPRxStack[TASK_STACK_SIZE_IP_RX_TASK/sizeof(int)]; // Stack of the IP_RxTask.
static OS_TASK _IPRxTCB; // Task-Control-Block of the IP_RxTask.
#endif
/*********************************************************************
*
* Prototypes
*
**********************************************************************
*/
#ifdef __cplusplus
extern "C" { /* Make sure we have C-declarations in C++ programs */
#endif
void MainTask(void);
#ifdef __cplusplus
}
#endif
/*********************************************************************
*
* Local functions
*
**********************************************************************
*/
/*********************************************************************
*
* _OnStateChange()
*
* Function description
* Callback that will be notified once the state of an interface
* changes.
*
* Parameters
* IFaceId : Zero-based interface index.
* AdminState: Is this interface enabled ?
* HWState : Is this interface physically ready ?
*/
static void _OnStateChange(unsigned IFaceId, U8 AdminState, U8 HWState) {
//
// Check if this is a disconnect from the peer or a link down.
// In this case call IP_Disconnect() to get into a known state.
//
if (((AdminState == IP_ADMIN_STATE_DOWN) && (HWState == 1)) || // Typical for dial-up connection e.g. PPP when closed from peer. Link up but app. closed.
((AdminState == IP_ADMIN_STATE_UP) && (HWState == 0))) { // Typical for any Ethernet connection e.g. PPPoE. App. opened but link down.
IP_Disconnect(IFaceId); // Disconnect the interface to a clean state.
}
}
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
/*********************************************************************
*
* MainTask()
*
* Function description
* Main task executed by the RTOS to create further resources and
* running the main application.
*/
void MainTask(void) {
IP_Init();
_IFaceId = IP_INFO_GetNumInterfaces() - 1; // Get the last registered interface ID as this is most likely the interface we want to use in this sample.
OS_SetPriority(OS_GetTaskID(), TASK_PRIO_IP_TASK); // For now, this task has highest prio except IP management tasks.
OS_CREATETASK(&_IPTCB , "IP_Task" , IP_Task , TASK_PRIO_IP_TASK , _IPStack); // Start the IP_Task.
#if USE_RX_TASK
OS_CREATETASK(&_IPRxTCB, "IP_RxTask", IP_RxTask, TASK_PRIO_IP_RX_TASK, _IPRxStack); // Start the IP_RxTask, optional.
#endif
IP_AddStateChangeHook(&_StateChangeHook, _OnStateChange); // Register hook to be notified on disconnects.
IP_NETBIOS_Init(_IFaceId, _aNetNames, 0); // Init NetBIOS.
IP_NETBIOS_Start(_IFaceId); // Start NetBIOS.
IP_Connect(_IFaceId); // Connect the interface if necessary.
OS_SetPriority(OS_GetTaskID(), 255); // Now this task has highest prio for real-time application. This is only allowed when this task does not use blocking IP API after this point.
while (IP_IFaceIsReadyEx(_IFaceId) == 0) {
OS_Delay(50);
}
while (1) {
BSP_ToggleLED(1);
OS_Delay(200);
}
}
/*************************** End of file ****************************/