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* [ECOS] How to print IP routing table with eCOS ?
@ 2003-11-05 16:00 Sebastien Couret
  2003-11-08 14:42 ` Andrew Lunn
  0 siblings, 1 reply; 2+ messages in thread
From: Sebastien Couret @ 2003-11-05 16:00 UTC (permalink / raw)
  To: ecos-discuss

Hello,

I.m trying to get the routing tables from the FreeBSD IP stack ported to eCOS.

The API show_network_tables() just stall my software and display nothing.

I.ve tried by the use of the sysctl() API (option checked in FreeBSD configuration) whith the following code :

int GetRoutes(void)
{
 int mib[6];
 size_t needed=0;		
 char *buf = NULL;
 char *next=NULL;
 char *lim = NULL;
 struct sockaddr *sa=NULL;
 struct rt_msghdr *rtm=NULL;

 mib[0] = CTL_NET;
 mib[1] = PF_ROUTE;
 mib[2] = 0;
 mib[3] = 0;
 mib[4] = NET_RT_DUMP;
 mib[5] = 0;
 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)	{
  LOG(LOG_ERR,"Route sysctl");
  return(-1);
 }
 LOG(LOG_INFO,.Free space needed : %d\n",needed);
 if (needed > 0) 
 {
  if ((buf = malloc(needed)) == 0)
  {
   LOG(LOG_ERR,"out of space (%i octets)\n",needed);
   return(-1);
  }
  if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
  {
   LOG(LOG_ERR,"sysctl of routing table");
   return(-1);
  }
  lim  = buf + needed;
 } // fin du if needed

 LOG(LOG_INFO,"Routing tables\n");

 if (buf) 
 {
  LOG(LOG_INFO,"Here comes the routing table\n");
  for (next = buf; next < lim; next += rtm->rtm_msglen)
  {
   rtm = (struct rt_msghdr *)next;
   sa = (struct sockaddr *)(rtm + 1);
   if (sa->sa_family != AF_INET)
	 continue;
   LOG(LOG_INFO,"Here.s one route\n");
	//p_rtentry(rtm);
  }   free(buf);
 } 
 return(0);
}

This doesn.t work because sysctl always set needed to 0 even if routes have been added to the routing tables.
Someone got a clue ?

Thanks for your help.



-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [ECOS] How to print IP routing table with eCOS ?
  2003-11-05 16:00 [ECOS] How to print IP routing table with eCOS ? Sebastien Couret
@ 2003-11-08 14:42 ` Andrew Lunn
  0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2003-11-08 14:42 UTC (permalink / raw)
  To: Sebastien Couret; +Cc: ecos-discuss

On Wed, Nov 05, 2003 at 06:01:10PM +0100, Sebastien Couret wrote:
> Hello,
> 
> I.m trying to get the routing tables from the FreeBSD IP stack ported to eCOS.
> 
> The API show_network_tables() just stall my software and display nothing.

It does work. Here is a run on the synthetic target which calls both
show_network_tables() and then uses your sysclt code (plus the bug fix
i just committed).

Routing tables
Destination     Gateway         Mask            Flags    Interface
127.0.0.0       127.0.0.1       255.0.0.0       UG       lo0
192.168.10.0    192.168.10.0    255.255.255.0   U        eth0
Interface statistics
eth0    IP: 192.168.10.10, Broadcast: 192.168.10.255, Netmask: 255.255.255.0
        UP BROADCAST RUNNING MULTICAST ALLMULTI MTU: 1500, Metric: 0
        Rx - Packets: 0, Bytes: 0, Tx - Packets: 0, Bytes: 0
lo0     IP: 127.0.0.1, Broadcast: 127.0.0.1, Netmask: 255.0.0.0
        UP LOOPBACK RUNNING MULTICAST MTU: 16384, Metric: 0
        Rx - Packets: 0, Bytes: 0, Tx - Packets: 0, Bytes: 0
Free space needed : 508
Routing tables
Here comes the routing table
Here.s one route
Here.s one route
Here.s one route

       Andrew

-- 
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
and search the list archive: http://sources.redhat.com/ml/ecos-discuss

^ permalink raw reply	[flat|nested] 2+ messages in thread

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