To get ISDN statistics with the I4B package do the following:

* Look at the declaration of `struct i4bisppp_softc' in

  /usr/src/i4b/driver/i4b_isppp.c.

  It is looking like this:

	struct i4bisppp_softc {

		/*

		 * struct sppp starts with a struct ifnet, but we gotta allocate

		 * more space for it.  NB: do not relocate this union, it must

		 * be first in isppp_softc.  The tls and tlf hooks below want to

		 * convert a ``struct sppp *'' into a ``struct isppp_softc *''.

		 */

		union {

			struct ifnet scu_if;

			struct sppp scu_sp;

		} sc_if_un;

	#define sc_if sc_if_un.scu_if

		int	sc_state;	/* state of the interface	*/

	#ifndef __FreeBSD__

		int	sc_unit;	/* unit number for Net/OpenBSD	*/

	#endif

		call_desc_t *sc_cdp;	/* ptr to call descriptor	*/

	#ifdef I4BISPPPACCT

		int sc_iinb;		/* isdn driver # of inbytes	*/

		int sc_ioutb;		/* isdn driver # of outbytes	*/

		int sc_inb;		/* # of bytes rx'd		*/

		int sc_outb;		/* # of bytes tx'd	 	*/

		int sc_linb;		/* last # of bytes rx'd		*/

		int sc_loutb;		/* last # of bytes tx'd 	*/

		int sc_fn;		/* flag, first null acct	*/

	#endif

	#if defined(__FreeBSD__) && __FreeBSD__ >= 3

		struct callout_handle sc_ch;

	#endif

	} i4bisppp_softc[NI4BISPPP];

* Create a new file /usr/include/machine/i4b_acct.h and put the declaration

  of this structure in this file.

* Replace `call_desc_t *' with `void *' in it.

* The result should look like this:

	struct i4bisppp_softc {

		/*

		 * struct sppp starts with a struct ifnet, but we gotta allocate

		 * more space for it.  NB: do not relocate this union, it must

		 * be first in isppp_softc.  The tls and tlf hooks below want to

		 * convert a ``struct sppp *'' into a ``struct isppp_softc *''.

		 */

		union {

			struct ifnet scu_if;

			struct sppp scu_sp;

		} sc_if_un;

	#define sc_if sc_if_un.scu_if

		int	sc_state;	/* state of the interface	*/

	#ifndef __FreeBSD__

		int	sc_unit;	/* unit number for Net/OpenBSD	*/

	#endif

		void *sc_cdp;		/* ptr to call descriptor	*/

	#ifdef I4BISPPPACCT

		int sc_iinb;		/* isdn driver # of inbytes	*/

		int sc_ioutb;		/* isdn driver # of outbytes	*/

		int sc_inb;		/* # of bytes rx'd		*/

		int sc_outb;		/* # of bytes tx'd	 	*/

		int sc_linb;		/* last # of bytes rx'd		*/

		int sc_loutb;		/* last # of bytes tx'd 	*/

		int sc_fn;		/* flag, first null acct	*/

	#endif

	#if defined(__FreeBSD__) && __FreeBSD__ >= 3

		struct callout_handle sc_ch;

	#endif

	};

* Put a

	#define I4BISPPPACCT	1	/* enable accounting messages */

  at the top of your /usr/include/machine/i4b_acct.h

* This file should now look about like `misc/i4b_acct.h' in the LibGTop

  source directory.

* Done.

This is necessary since LibGTop reads its data directly out of the kernel

and the `struct i4bisppp_softc' is only defined there and in no header file

(someone can tell the I4B people to put it in some header file ?).

Martin <martin@home-of-linux.org>