RouteCommand.c

/************************************************************************************
* Copyright (C) 2023                                                               *
* TETCOS, Bangalore. India                                                         *
*                                                                                  *
* Tetcos owns the intellectual property rights in the Product and its content.     *
* The copying, redistribution, reselling or publication of any or all of the       *
* Product or its content without express prior written consent of Tetcos is        *
* prohibited. Ownership and / or any other right relating to the software and all  *
* intellectual property rights therein shall remain at all times with Tetcos.      *
*                                                                                  *
* Author: Shashi kant suman
*                                                                                   *
* ---------------------------------------------------------------------------------*/
#include "main.h"
#include <signal.h>
#include "CLI.h"
#include "../IP/IP.h"
 
static bool validate_route_add_command(ptrCLIENTINFO info, ptrCOMMANDARRAY command, int index)
{
    if (command->length - index >= 9)
        return true;
    send_message(info, "Too few argument for route add command\n");
    return false;
}
 
static bool validate_route_delete_command(ptrCLIENTINFO info, ptrCOMMANDARRAY command, int index)
{
    if (command->length - index >= 1)
        return true;
    send_message(info, "Too few argument for route delete command\n");
    return false;
}
 
bool validate_route_command(ptrCLIENTINFO info, ptrCOMMANDARRAY command, int index)
{
    if (command->length - index < 2)
    {
        send_message(info, "Too less argument for route command\n");
        return false;
    }
 
    if (!_stricmp(command->commands[index + 1], "add"))
        return validate_route_add_command(info, command, index + 1);
 
    else if (!_stricmp(command->commands[index + 1], "print"))
        return true;
 
    else if (!_stricmp(command->commands[index + 1], "delete"))
        return validate_route_delete_command(info, command, index + 1);
 
    send_message(info, "%s is not valid argument for route command\n",
                 command->commands[index + 1]);
    return false;
}
 
static void execute_route_add_command(ptrCLIENTINFO info,
                                      ptrCOMMANDARRAY command,
                                      int index,
                                      NETSIM_ID d)
{
    NETSIM_IPAddress dest = NULL;
    NETSIM_IPAddress mask = NULL;
    NETSIM_IPAddress gateway = NULL;
    UINT prefix = 0;
    NETSIM_ID in = 0;
    UINT metric = 0;
    int ipType = STR_GET_IP_TYPE(command->commands[index + 1]);
 
    if (!ipType)
        fnNetSimError("%s ip address is not valid.\n", command->commands[index + 1]);
 
    dest = STR_TO_IP(command->commands[index + 1], ipType);
    
    if (ipType == 4)
        mask = STR_TO_IP4(command->commands[index + 3]);
    else
        prefix = atoi(command->commands[index + 3]);
 
    gateway = STR_TO_IP(command->commands[index + 4], ipType);
 
    metric = atoi(command->commands[index + 6]);
 
    in = atoi(command->commands[index + 8]);
 
    iptable_add(IP_WRAPPER_GET(d), dest, mask, prefix, gateway, 1, &DEVICE_NWADDRESS(d, in), &in, metric, "STATIC");
    send_message(info, "OK!\n");
}
 
static void execute_route_print_command(ptrCLIENTINFO info,
                                        ptrCOMMANDARRAY command,
                                        int index,
                                        NETSIM_ID d)
{
    (void)command;
    (void)index;
 
    ptrIP_WRAPPER w = IP_WRAPPER_GET(d);
    ptrIP_ROUTINGTABLE table = (ptrIP_ROUTINGTABLE)w->table;
    send_message(info, "===========================================\n\n");
    send_message(info, " IP Route Table\n");
    send_message(info, "===========================================\n\n");
 
    send_message(info, "%30s\t%15s\t%30s\t%30s\t%10s\t%10s\n",
                 "Network Destination",
                 "Netmask//Prefix",
                 "Gateway",
                 "Interface",
                 "Metric",
                 "Type");
 
    while (table)
    {
        send_message(info, "%30s\t",
                     table->networkDestination->str_ip);
 
        if (table->networkDestination->type == 4)
            send_message(info, "%15s\t", table->netMask->str_ip);
        else
            send_message(info, "%15d\t", table->prefix_len);
 
        if (table->gateway)
            send_message(info, "%30s\t", table->gateway->str_ip);
        else
            send_message(info, "%30s\t", "on-link");
 
        send_message(info, "%30s\t%10d\t%10s\n",
                     table->Interface[0]->str_ip,
                     table->Metric,
                     table->szType);
 
 
        table = LIST_NEXT(table);
    }
    send_message(info, "================================================\n");
    send_message(info, "\n\n");
}
 
static void execute_route_delete_command(ptrCLIENTINFO info,
                                         ptrCOMMANDARRAY command,
                                         int index,
                                         NETSIM_ID d)
{
    NETSIM_IPAddress dest = STR_TO_IP(command->commands[index + 1],
                                      STR_GET_IP_TYPE(command->commands[index + 1]));
    iptable_delete(IP_WRAPPER_GET(d), dest, NULL, NULL);
    send_message(info, "OK!\n");
}
 
void execute_route_command(ptrCLIENTINFO info, ptrCOMMANDARRAY command, int index, NETSIM_ID d)
{
    if (!_stricmp(command->commands[index + 1], "add"))
        execute_route_add_command(info, command, index + 1, d);
 
    else if (!_stricmp(command->commands[index + 1], "print"))
        execute_route_print_command(info, command, index + 1, d);
 
    else if (!_stricmp(command->commands[index + 1], "delete"))
        execute_route_delete_command(info, command, index + 1, d);
}