TM4C1294NCPDT: run time static ip is not changing on ti-rtos

/*
 * Copyright (c) 2014-2015, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 *    ======== tcpEcho.c ========
 *    Contains BSD sockets code.
 */

#include <string.h>

#include <xdc/std.h>
#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>

#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>
#include <ti/drivers/GPIO.h>

/* NDK BSD support */
#include <sys/socket.h>

/* Example/Board Header file */
#include "Board.h"

#define TCPPACKETSIZE 256
#define NUMTCPWORKERS 3

/*
 *  ======== tcpWorker ========
 *  Task to handle TCP connection. Can be multiple Tasks running
 *  this function.
 */
Void tcpWorker(UArg arg0, UArg arg1)
{
    int  clientfd = (int)arg0;
    int  bytesRcvd;
    int  bytesSent;
    char buffer[TCPPACKETSIZE];

    System_printf("tcpWorker: start clientfd = 0x%x\n", clientfd);
    System_flush();
    while ((bytesRcvd = recv(clientfd, buffer, TCPPACKETSIZE, 0)) > 0) {
        bytesSent = send(clientfd, buffer, bytesRcvd, 0);
        if (bytesSent < 0 || bytesSent != bytesRcvd) {
            System_printf("Error: send failed.\n");
            break;
        }
    }
    System_printf("tcpWorker stop clientfd = 0x%x\n", clientfd);
    System_flush();
    close(clientfd);
}

/*
 *  ======== tcpHandler ========
 *  Creates new Task to handle new TCP connections.
 */
Void tcpHandler(UArg arg0, UArg arg1)
{
    int                status;
    int                clientfd;
    int                server;
    struct sockaddr_in localAddr;
    struct sockaddr_in clientAddr;
    int                optval;
    int                optlen = sizeof(optval);
    socklen_t          addrlen = sizeof(clientAddr);
    Task_Handle        taskHandle;
    Task_Params        taskParams;
    Error_Block        eb;

    server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (server == -1) {
        System_printf("Error: socket not created.\n");
        System_flush();
        goto shutdown;
    }

#if 0
    memset(&localAddr, 0, sizeof(localAddr));
    localAddr.sin_family = AF_INET;
    localAddr.sin_addr.s_addr = htonl(INADDR_ANY)
    localAddr.sin_port = htons(arg0);
#endif
    memset(&localAddr, 0, sizeof(localAddr));
    localAddr.sin_family = AF_INET;
    localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
    localAddr.sin_port = htons(arg0);


    status = bind(server, (struct sockaddr *)&localAddr, sizeof(localAddr));
    if (status == -1) {
        System_printf("Error: bind failed.\n");
        System_flush();
        goto shutdown;
    }

    status = listen(server, NUMTCPWORKERS);
    if (status == -1) {
        System_printf("Error: listen failed.\n");
        System_flush();
        goto shutdown;
    }

    optval = 1;
    if (setsockopt(server, SOL_SOCKET, SO_KEEPALIVE, &optval, optlen) < 0) {
        System_printf("Error: setsockopt failed\n");
        System_flush();
        goto shutdown;
    }

    while ((clientfd = accept(server, (struct sockaddr *)&clientAddr, &addrlen)) != -1)// this will not return anything when ip is going to change in run time
    {

        System_printf("tcpHandler: Creating thread clientfd = %d\n", clientfd);
        System_flush();
        /* Init the Error_Block */
        Error_init(&eb);

        /* Initialize the defaults and set the parameters. */
        Task_Params_init(&taskParams);
        taskParams.arg0 = (UArg)clientfd;
        taskParams.stackSize = 1280;
        taskHandle = Task_create((Task_FuncPtr)tcpWorker, &taskParams, &eb);
        if (taskHandle == NULL) {
            System_printf("Error: Failed to create new Task\n");
            System_flush();
            close(clientfd);
        }

        /* addrlen is a value-result param, must reset for next accept call */
        addrlen = sizeof(clientAddr);
        goto a;
    }

    System_printf("Error: accept failed.\n");
    System_flush();

shutdown:
    if (server > 0)
    {
        close(server);
    }
}

/*
 *  ======== main ========
 */
int main(void)
{
    /* Call board init functions */
    Board_initGeneral();
    Board_initGPIO();
    Board_initEMAC();

    System_printf("Starting the TCP Echo example\nSystem provider is set to "
                  "SysMin. Halt the target to view any SysMin contents in"
                  " ROV.\n");
    /* SysMin will only print to the console when you call flush or exit */
    System_flush();

    /* Start BIOS */
    BIOS_start();

    return (0);
}

/*
 * Copyright (c) 2015, Texas Instruments Incorporated
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * *  Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * *  Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * *  Neither the name of Texas Instruments Incorporated nor the names of
 *    its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 *    ======== tcpEchoHooks.c ========
 *    Contains non-BSD sockets code (NDK Network Open Hook)
 */

/* XDCtools Header files */
#include <xdc/std.h>
#include <xdc/runtime/Error.h>
#include <xdc/runtime/System.h>

#include <netmain.h>
#include <stacksys.h>
#include <_netctrl.h>
#include <_nettool.h>
#include <_oskern.h>
#include <_stack.h>
#include <serrno.h>
#include <socket.h>
#include <stkmain.h>
#include <usertype.h>
/* BIOS Header files */
#include <ti/sysbios/BIOS.h>
#include <ti/sysbios/knl/Task.h>

#define TCPPORT 502

#define TCPHANDLERSTACK 1024

/* Prototypes */
Void tcpHandler(UArg arg0, UArg arg1);

/*
 *  ======== netOpenHook ========
 *  NDK network open hook used to initialize IPv6
 */
extern char *LocalIPAddr;
extern char *LocalIPMask;
extern char *GatewayIP;

void netOpenHook()
{
#if 1
    Task_Handle taskHandle;
    Task_Params taskParams;
    Error_Block eb;

    /* Make sure Error_Block is initialized */
    Error_init(&eb);
#endif

#if 0 //when comment this part the .cfg ip(  i.e 172.16.10.1) is connected properly  but when try to change ip the
    CI_IPNET NA;

    HANDLE      hCfgIpAddr;

    /* Setup manual IP address */
    bzero(&NA, sizeof(NA));
    NA.IPAddr  = inet_addr("172.16.10.2");
    NA.IPMask  = inet_addr("255.255.255.0");
    strcpy(NA.Domain, "demo.net");
    NA.NetType = 0;

    /* get the current static IP entry */
    CfgGetEntry(0, CFGTAG_IPNET, 1, 1, &hCfgIpAddr);

    /* remove the current static IP entry */
    CfgRemoveEntry(0, hCfgIpAddr);

    /* add a new static IP entry */
    CfgAddEntry(0, CFGTAG_IPNET, 1, 0,
            sizeof(CI_IPNET), (UINT8 *)&NA, 0);
#endif

    /*
     *  Create the Task that farms out incoming TCP connections.
     *  arg0 will be the port that this task listens to.
     */
#if 1
    Task_Params_init(&taskParams);
    taskParams.stackSize = TCPHANDLERSTACK;
    taskParams.priority = 1;
    taskParams.arg0 = TCPPORT;
    taskHandle = Task_create((Task_FuncPtr)tcpHandler, &taskParams, &eb);
    if (taskHandle == NULL)
    {
        System_printf("netOpenHook: Failed to create tcpHandler Task\n");
    }

    System_flush();
#endif

}

#if 0
void FnStackThreadHook(void)
{
    LocalIPAddr = "172.16.10.1";
    LocalIPMask = "255.255.255.0";
    GatewayIP = "192.168.0.1";
}
#endif