/* Copyright (C) 1998-99 Martin Baulig

   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <martin@home-of-linux.org>, October 1998.

   LibGTop is free software; you can redistribute it and/or modify it

   under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License,

   or (at your option) any later version.

   LibGTop is distributed in the hope that it will be useful, but WITHOUT

   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

   for more details.

   You should have received a copy of the GNU General Public License

   along with LibGTop; see the file COPYING. If not, write to the

   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

   Boston, MA 02110-1301, USA.

*/

#include <config.h>

#include <glibtop.h>

#include <glibtop/error.h>

#include <glibtop/ppp.h>

#include <glibtop_suid.h>

#ifdef HAVE_I4B

#include <net/if.h>

#include <net/if_types.h>

#ifdef HAVE_NET_IF_VAR_H

#include <net/if_var.h>

#endif

#include <net/netisr.h>

#include <net/route.h>

#include <net/if_sppp.h>

/* Read `misc/i4b_acct.txt' for details ... */

#ifdef HAVE_I4B_ACCT

#include <machine/i4b_acct.h>

#endif

static const unsigned long _glibtop_sysdeps_ppp =

(1L << GLIBTOP_PPP_STATE);

#ifdef HAVE_I4B_ACCT

static const unsigned long _glibtop_sysdeps_ppp_acct =

(1L << GLIBTOP_PPP_BYTES_IN) + (1L << GLIBTOP_PPP_BYTES_OUT);

#endif

#endif /* HAVE_I4B */

/* nlist structure for kernel access */

static struct nlist nlst [] = {

#ifdef HAVE_I4B

	{ "_i4bisppp_softc" },

#endif

	{ 0 }

};

/* Init function. */

void

_glibtop_init_ppp_p (glibtop *server)

{

#ifdef HAVE_I4B

#ifdef HAVE_I4B_ACCT

	server->sysdeps.ppp = _glibtop_sysdeps_ppp |

		_glibtop_sysdeps_ppp_acct;

#else

	server->sysdeps.ppp = _glibtop_sysdeps_ppp;

#endif

#endif /* HAVE_I4B */

	if (kvm_nlist (server->machine->kd, nlst) < 0) {

		glibtop_warn_io_r (server, "kvm_nlist");

		server->sysdeps.ppp = 0;

	}

}

/* Provides information about ppp usage. */

void

glibtop_get_ppp_p (glibtop *server, glibtop_ppp *buf, unsigned short device)

{

#ifdef HAVE_I4B

#ifdef HAVE_I4B_ACCT

	struct i4bisppp_softc data;

#else

	struct sppp data;

#endif

	int phase;

	memset (buf, 0, sizeof (glibtop_ppp));

	if (server->sysdeps.ppp == 0) return;

	if (kvm_read (server->machine->kd, nlst [0].n_value,

		      &data, sizeof (data)) != sizeof (data)) {

		glibtop_warn_io_r (server, "kvm_read (i4bisppp_softc)");

		return;

	}

#ifdef HAVE_I4B_ACCT

	phase = data.sc_if_un.scu_sp.pp_phase;

#else

	/* FIXME: Which FreeBSD version have this field and

	 *        which not. */

#if 0

	phase = data.pp_phase;

#endif

#endif

	switch (phase) {

#ifdef HAVE_I4B_ACCT

	case PHASE_DEAD:

	case PHASE_TERMINATE:

		buf->state = GLIBTOP_PPP_STATE_HANGUP;

		break;

	case PHASE_ESTABLISH:

	case PHASE_NETWORK:

		buf->state = GLIBTOP_PPP_STATE_ONLINE;

		break;

#endif

	default:

		buf->state = GLIBTOP_PPP_STATE_UNKNOWN;

		break;

	}

	buf->flags = _glibtop_sysdeps_ppp;

#ifdef HAVE_I4B_ACCT

	buf->bytes_in = data.sc_inb;

	buf->bytes_out = data.sc_outb;

	buf->flags |= _glibtop_sysdeps_ppp_acct;

#endif

#endif /* HAVE_I4B */

}