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/* $Id$ */
/* 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 Library 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 Library General Public
License for more details.
You should have received a copy of the GNU Library General Public
License along with LibGTop; see the file COPYING.LIB. If not, write
to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/netload.h>
#include <glibtop_suid.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#ifdef HAVE_NET_IF_VAR_H
#include <net/if_var.h>
#endif
#include <netinet/in.h>
#include <netinet/in_var.h>
static const unsigned long _glibtop_sysdeps_netload =
(1 << GLIBTOP_NETLOAD_IF_FLAGS) +
(1 << GLIBTOP_NETLOAD_MTU) +
(1 << GLIBTOP_NETLOAD_SUBNET) +
(1 << GLIBTOP_NETLOAD_ADDRESS) +
(1 << GLIBTOP_NETLOAD_PACKETS_IN) +
(1 << GLIBTOP_NETLOAD_PACKETS_OUT) +
(1 << GLIBTOP_NETLOAD_PACKETS_TOTAL) +
(1 << GLIBTOP_NETLOAD_BYTES_IN) +
(1 << GLIBTOP_NETLOAD_BYTES_OUT) +
(1 << GLIBTOP_NETLOAD_BYTES_TOTAL) +
(1 << GLIBTOP_NETLOAD_ERRORS_IN) +
(1 << GLIBTOP_NETLOAD_ERRORS_OUT) +
(1 << GLIBTOP_NETLOAD_ERRORS_TOTAL) +
(1 << GLIBTOP_NETLOAD_COLLISIONS);
/* nlist structure for kernel access */
static struct nlist nlst [] = {
{ "_ifnet" },
{ 0 }
};
/* Init function. */
void
glibtop_init_netload_p (glibtop *server)
{
server->sysdeps.netload = _glibtop_sysdeps_netload;
if (kvm_nlist (server->machine.kd, nlst) != 0)
glibtop_error_io_r (server, "kvm_nlist");
}
/* Provides Network statistics. */
void
glibtop_get_netload_p (glibtop *server, glibtop_netload *buf,
const char *interface)
{
struct ifnet ifnet;
u_long ifnetaddr, ifnetfound, ifaddraddr;
struct sockaddr *sa;
char tname [16];
union {
struct ifaddr ifa;
struct in_ifaddr in;
} ifaddr;
glibtop_init_p (server, (1 << GLIBTOP_SYSDEPS_NETLOAD), 0);
memset (buf, 0, sizeof (glibtop_netload));
if (kvm_read (server->machine.kd, nlst [0].n_value,
&ifnetaddr, sizeof (ifnetaddr)) != sizeof (ifnetaddr))
glibtop_error_io_r (server, "kvm_read (ifnet)");
ifaddraddr = 0;
while (ifnetaddr || ifaddraddr) {
struct sockaddr_in *sin;
register char *cp;
if (ifaddraddr == 0) {
ifnetfound = ifnetaddr;
if (kvm_read (server->machine.kd, ifnetaddr, &ifnet,
sizeof (ifnet)) != sizeof (ifnet))
glibtop_error_io_r (server, "kvm_read (ifnetaddr)");
#ifdef __FreeBSD__
if (kvm_read (server->machine.kd, (u_long) ifnet.if_name,
tname, 16) != 16)
glibtop_error_io_r (server, "kvm_read (if_name)");
#else
strncpy (tname, ifnet.if_xname, 16);
tname [15] = 0;
#endif
#if (defined __FreeBSD__) && (__FreeBSD_version >= 300000)
ifaddraddr = (u_long) ifnet.if_addrhead.tqh_first;
#elif (defined __FreeBSD__)
ifaddraddr = (u_long) ifnet.if_addrlist;
#else
ifaddraddr = (u_long) ifnet.if_addrlist.tqh_first;
#endif
}
if (ifaddraddr) {
if ((kvm_read (server->machine.kd, ifaddraddr, &ifaddr,
sizeof (ifaddr)) != sizeof (ifaddr)))
glibtop_error_io_r (server, "kvm_read (ifaddraddr)");
#define CP(x) ((char *)(x))
cp = (CP(ifaddr.ifa.ifa_addr) - CP(ifaddraddr)) +
CP(&ifaddr); sa = (struct sockaddr *)cp;
if (!strcmp (interface, tname) && (sa->sa_family == AF_INET)) {
sin = (struct sockaddr_in *)sa;
if (ifnet.if_flags & IFF_UP)
buf->if_flags |= GLIBTOP_IF_FLAGS_UP;
if (ifnet.if_flags & IFF_BROADCAST)
buf->if_flags |= GLIBTOP_IF_FLAGS_BROADCAST;
if (ifnet.if_flags & IFF_DEBUG)
buf->if_flags |= GLIBTOP_IF_FLAGS_DEBUG;
if (ifnet.if_flags & IFF_LOOPBACK)
buf->if_flags |= GLIBTOP_IF_FLAGS_LOOPBACK;
if (ifnet.if_flags & IFF_POINTOPOINT)
buf->if_flags |= GLIBTOP_IF_FLAGS_POINTOPOINT;
if (ifnet.if_flags & IFF_RUNNING)
buf->if_flags |= GLIBTOP_IF_FLAGS_RUNNING;
if (ifnet.if_flags & IFF_NOARP)
buf->if_flags |= GLIBTOP_IF_FLAGS_NOARP;
if (ifnet.if_flags & IFF_PROMISC)
buf->if_flags |= GLIBTOP_IF_FLAGS_PROMISC;
if (ifnet.if_flags & IFF_ALLMULTI)
buf->if_flags |= GLIBTOP_IF_FLAGS_ALLMULTI;
if (ifnet.if_flags & IFF_OACTIVE)
buf->if_flags |= GLIBTOP_IF_FLAGS_OACTIVE;
if (ifnet.if_flags & IFF_SIMPLEX)
buf->if_flags |= GLIBTOP_IF_FLAGS_SIMPLEX;
if (ifnet.if_flags & IFF_LINK0)
buf->if_flags |= GLIBTOP_IF_FLAGS_LINK0;
if (ifnet.if_flags & IFF_LINK1)
buf->if_flags |= GLIBTOP_IF_FLAGS_LINK1;
if (ifnet.if_flags & IFF_LINK2)
buf->if_flags |= GLIBTOP_IF_FLAGS_LINK2;
#ifdef __FreeBSD__
if (ifnet.if_flags & IFF_ALTPHYS)
buf->if_flags |= GLIBTOP_IF_FLAGS_ALTPHYS;
#endif
if (ifnet.if_flags & IFF_MULTICAST)
buf->if_flags |= GLIBTOP_IF_FLAGS_MULTICAST;
buf->subnet = htonl (ifaddr.in.ia_subnet);
buf->address = sin->sin_addr.s_addr;
buf->mtu = ifnet.if_mtu;
buf->packets_in = ifnet.if_ipackets;
buf->packets_out = ifnet.if_opackets;
buf->packets_total = buf->packets_in + buf->packets_out;
buf->bytes_in = ifnet.if_ibytes;
buf->bytes_out = ifnet.if_obytes;
buf->bytes_total = buf->bytes_in + buf->bytes_out;
buf->errors_in = ifnet.if_ierrors;
buf->errors_out = ifnet.if_oerrors;
buf->errors_total = buf->errors_in + buf->errors_out;
buf->collisions = ifnet.if_collisions;
buf->flags = _glibtop_sysdeps_netload;
return;
}
#if (defined __FreeBSD__) && (__FreeBSD_version >= 300000)
ifaddraddr = (u_long)ifaddr.ifa.ifa_link.tqe_next;
#elif (defined __FreeBSD__)
ifaddraddr = (u_long)ifaddr.ifa.ifa_next;
#else
ifaddraddr = (u_long)ifaddr.ifa.ifa_list.tqe_next;
#endif
}
#if (defined __FreeBSD__) && (__FreeBSD_version >= 300000)
ifnetaddr = (u_long) ifnet.if_link.tqe_next;
#elif (defined __FreeBSD__)
ifnetaddr = (u_long) ifnet.if_next;
#else
ifnetaddr = (u_long) ifnet.if_list.tqe_next;
#endif
}
}
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