networks.c

   1 /* Modified by: xChaos, 20131029 */
   2
   3 #include "cll1-0.6.2.h"
   4 #include "ipstruct.h"
   5
   6 #define STRLEN 512
   7
   8 extern struct IP *ips, *networks;
   9
  10 void update_network(char *look_for, struct IP* ip)
  11 {
  12  struct IP *network;
  13  char *netaddr, *lastnum, *ipaddr;
  14  int ipnum, netnum;
  15
  16  duplicate(look_for, ipaddr);
  17  lastnum = strrchr(ipaddr, '.');
  18  if(lastnum)
  19  {
  20   ipnum = atoi(lastnum + 1);
  21   *lastnum = 0;
  22  }
  23
  24  for_each(network, networks)
  25  {
  26   duplicate(network->addr, netaddr);
  27   lastnum = strrchr(netaddr, '.');
  28   if(lastnum)
  29   {
  30    netnum = atoi(lastnum + 1);
  31    *lastnum = 0;
  32 //   printf("%s/%d + %d\n",network->addr,network->mask,(1<<(32-network->mask)));
  33    if(     eq(netaddr, ipaddr)
  34        and netnum + (1<<(32-network->mask)) > ipnum
  35        and netnum <= ipnum)
  36    {
  37     network->group += 1;
  38     network->min += ip->min;
  39     network->direct += ip->max<<10; /* sum of Mbps, not kbps*/
  40
  41     if(ip->max > network->max)
  42     {
  43      network->max = ip->max;
  44     }
  45
  46     if(network->max > network->min)
  47     {
  48      network->desired = network->max;
  49     }
  50     else
  51     {
  52      network->desired = network->min;
  53     }
  54     return;
  55    }
  56   }
  57  }
  58 }
  59
  60 void analyse_topology(char *traceroute)
  61 {
  62  char *buf, *netaddr, *ptr, *lastnum, *str;
  63  int col, gateway, netnum, tracert;
  64  struct IP *network=NULL, *ip;
  65
  66  /*-----------------------------------------------------------------*/
  67  puts("Analysing network topology ...");
  68  /*-----------------------------------------------------------------*/
  69  for_each(ip, networks)
  70  {
  71   printf("%s/%d %s\n",ip->addr, ip->mask, ip->name);
  72   duplicate(ip->addr, buf);
  73   lastnum = strrchr(buf, '.');
  74   if(lastnum)
  75   {
  76    gateway = atoi(lastnum + 1) + 1;  /* this is just common rule... */
  77    *lastnum = 0;
  78    string(str,STRLEN);
  79    sprintf(str, traceroute, buf, gateway);
  80    shell(str);
  81    input(str,STRLEN)
  82    {
  83     if(    not strstr(str, "traceroute")
  84        and not strstr(str, "* * *"))
  85     {
  86      printf("%s",str);
  87      duplicate(str, buf);
  88      valid_columns(ptr, buf, ' ', col)
  89      if(*ptr=='*')
  90      {
  91       col--;
  92      }
  93      else if(col==2)
  94      {
  95 //#ifdef DEBUG
  96       printf("via [%s]\n", ptr);
  97 //#endif
  98       update_network(ptr, ip);
  99      }
 100     }
 101    }
 102   }
 103  }
 104  sort(network, networks, desc_order_by, min);
 105  sort(network, networks, desc_order_by, desired);
 106
 107  /*-----------------------------------------------------------------*/
 108  puts("Requested network parameters are:");
 109  /*-----------------------------------------------------------------*/
 110  for_each(ip, networks) if(ip->desired>>10 > 0)
 111  {
 112   printf("%s/%d %s REQUESTED=%dM (classes=%d, sum_min=%dk, max_1=%dk, sum_max=%LuM, agreg.=1:%d)\n",
 113          ip->addr, ip->mask, ip->name, ip->desired>>10, ip->group, ip->min, ip->max, ip->direct,
 114          (int)((float)(ip->direct)/(ip->desired>>10)));
 115  }
 116  exit(-1);
 117 }