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/* 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/netload.h>
#include <glibtop_suid.h>
#include <string.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <sys/ioctl.h>
#include <net/if_var.h>
#include <netinet/in.h>
#define _KERNEL
#include <netinet/in_var.h>
#undef _KERNEL
#include <netinet6/in6_var.h>
static const unsigned long _glibtop_sysdeps_netload =
(1L << GLIBTOP_NETLOAD_IF_FLAGS) +
(1L << GLIBTOP_NETLOAD_PACKETS_IN) +
(1L << GLIBTOP_NETLOAD_PACKETS_OUT) +
(1L << GLIBTOP_NETLOAD_PACKETS_TOTAL) +
(1L << GLIBTOP_NETLOAD_BYTES_IN) +
(1L << GLIBTOP_NETLOAD_BYTES_OUT) +
(1L << GLIBTOP_NETLOAD_BYTES_TOTAL) +
(1L << GLIBTOP_NETLOAD_ERRORS_IN) +
(1L << GLIBTOP_NETLOAD_ERRORS_OUT) +
(1L << GLIBTOP_NETLOAD_ERRORS_TOTAL) +
(1L << GLIBTOP_NETLOAD_COLLISIONS);
static const unsigned _glibtop_sysdeps_netload_data =
(1L << GLIBTOP_NETLOAD_ADDRESS) +
(1L << GLIBTOP_NETLOAD_SUBNET) +
(1L << GLIBTOP_NETLOAD_MTU);
/* 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;
struct sockaddr *sa = NULL;
char name [32];
union {
struct ifaddr ifa;
struct in_ifaddr in;
} ifaddr;
glibtop_init_p (server, (1L << 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)");
while (ifnetaddr) {
struct sockaddr_in *sin;
register char *cp;
u_long ifaddraddr;
{
ifnetfound = ifnetaddr;
if (kvm_read (server->machine->kd, ifnetaddr, &ifnet,
sizeof (ifnet)) != sizeof (ifnet))
glibtop_error_io_r (server, "kvm_read (ifnetaddr)");
g_strlcpy (name, ifnet.if_xname, sizeof(name));
ifnetaddr = (u_long) ifnet.if_list.tqe_next;
if (strcmp (name, interface) != 0)
continue;
ifaddraddr = (u_long) ifnet.if_addrlist.tqh_first;
}
if (ifnet.if_flags & IFF_UP)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_UP);
if (ifnet.if_flags & IFF_BROADCAST)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_BROADCAST);
if (ifnet.if_flags & IFF_DEBUG)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_DEBUG);
if (ifnet.if_flags & IFF_LOOPBACK)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_LOOPBACK);
if (ifnet.if_flags & IFF_POINTOPOINT)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_POINTOPOINT);
#ifdef IFF_DRV_RUNNING
if (ifnet.if_drv_flags & IFF_DRV_RUNNING)
#else
if (ifnet.if_flags & IFF_RUNNING)
#endif
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_RUNNING);
if (ifnet.if_flags & IFF_NOARP)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_NOARP);
if (ifnet.if_flags & IFF_PROMISC)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_PROMISC);
if (ifnet.if_flags & IFF_ALLMULTI)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_ALLMULTI);
#ifdef IFF_DRV_OACTIVE
if (ifnet.if_drv_flags & IFF_DRV_OACTIVE)
#else
if (ifnet.if_flags & IFF_OACTIVE)
#endif
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_OACTIVE);
if (ifnet.if_flags & IFF_SIMPLEX)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_SIMPLEX);
if (ifnet.if_flags & IFF_LINK0)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_LINK0);
if (ifnet.if_flags & IFF_LINK1)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_LINK1);
if (ifnet.if_flags & IFF_LINK2)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_LINK2);
if (ifnet.if_flags & IFF_MULTICAST)
buf->if_flags |= (1L << GLIBTOP_IF_FLAGS_MULTICAST);
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;
while (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 (sa->sa_family == AF_LINK) {
struct sockaddr_dl *dl = (struct sockaddr_dl *) sa;
memcpy (buf->hwaddress, LLADDR (dl), sizeof (buf->hwaddress));
buf->flags |= (1L << GLIBTOP_NETLOAD_HWADDRESS);
} else if (sa->sa_family == AF_INET) {
sin = (struct sockaddr_in *)sa;
buf->subnet = ifaddr.in.ia_netmask;
buf->address = sin->sin_addr.s_addr;
buf->mtu = ifnet.if_mtu;
buf->flags |= _glibtop_sysdeps_netload_data;
} else if (sa->sa_family == AF_INET6) {
struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) sa;
int in6fd;
memcpy (buf->address6, &sin6->sin6_addr,
sizeof (buf->address6));
buf->flags |= (1L << GLIBTOP_NETLOAD_ADDRESS6);
if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
sin6->sin6_scope_id =
ntohs(*(u_int16_t *)&sin6->sin6_addr.s6_addr[2]);
sin6->sin6_addr.s6_addr[2] = sin6->sin6_addr.s6_addr[3] = 0;
}
buf->scope6 = (guint8) sin6->sin6_scope_id;
buf->flags |= (1L << GLIBTOP_NETLOAD_SCOPE6);
in6fd = socket (AF_INET6, SOCK_DGRAM, 0);
if (in6fd >= 0) {
struct in6_ifreq ifr;
memset (&ifr, 0, sizeof (ifr));
ifr.ifr_addr = *sin6;
g_strlcpy (ifr.ifr_name, interface,
sizeof (ifr.ifr_name));
if (ioctl (in6fd, SIOCGIFNETMASK_IN6, (char *) &ifr) >= 0) {
memcpy (buf->prefix6, &ifr.ifr_addr.sin6_addr,
sizeof (buf->prefix6));
buf->flags |= (1L << GLIBTOP_NETLOAD_PREFIX6);
}
close (in6fd);
}
}
ifaddraddr = (u_long) ifaddr.ifa.ifa_list.tqe_next;
}
return;
}
}
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