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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, October 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/netload.h>
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#include "utils.h"
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static const unsigned long _glibtop_sysdeps_netload =
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(1 << GLIBTOP_NETLOAD_IF_FLAGS) + (1 << GLIBTOP_NETLOAD_MTU) +
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(1 << GLIBTOP_NETLOAD_SUBNET) + (1 << GLIBTOP_NETLOAD_ADDRESS) +
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(1 << GLIBTOP_NETLOAD_PACKETS_IN) + (1 << GLIBTOP_NETLOAD_PACKETS_OUT) +
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(1 << GLIBTOP_NETLOAD_PACKETS_TOTAL) + (1 << GLIBTOP_NETLOAD_BYTES_IN) +
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(1 << GLIBTOP_NETLOAD_BYTES_OUT) + (1 << GLIBTOP_NETLOAD_BYTES_TOTAL) +
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(1 << GLIBTOP_NETLOAD_ERRORS_IN) + (1 << GLIBTOP_NETLOAD_ERRORS_OUT) +
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(1 << GLIBTOP_NETLOAD_ERRORS_TOTAL) + (1 << GLIBTOP_NETLOAD_COLLISIONS);
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static void get_ifaddr(glibtop* server, struct ifaddr* next, long* addr, long* mask)
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{
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struct ifaddr ifaddr;
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struct sockaddr_in sockaddr;
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*addr = 0;
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*mask = 0;
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while (next)
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{
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/* get interface ifaddr structure */
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_glibtop_get_kmem_info(server, (off_t)next, &ifaddr, sizeof(ifaddr));
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/* get socket addr information */
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_glibtop_get_kmem_info( server, (off_t)ifaddr.ifa_addr
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, &sockaddr, sizeof(sockaddr));
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/* if valid family : UDP, TCP, ...*/
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if (sockaddr.sin_family == AF_INET)
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{
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*addr = sockaddr.sin_addr.s_addr;
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_glibtop_get_kmem_info( server, (off_t)ifaddr.ifa_netmask
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, &sockaddr, sizeof(sockaddr));
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*mask = sockaddr.sin_addr.s_addr;
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/* address found */
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return;
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}
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next = ifaddr.ifa_next;
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}
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}
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/* Init function. */
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void
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_glibtop_init_netload_p (glibtop *server)
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{
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off_t result;
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off_t addr;
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result = _glibtop_get_kmem_offset(server, "ifnet");
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if (result <= 0)
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{
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server->sysdeps.netload = 0;
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return;
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}
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result = _glibtop_get_kmem_info(server, result, &addr, sizeof(addr));
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if (result <= 0)
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{
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server->sysdeps.netload = 0;
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return;
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}
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server->machine->ifnet_offset = addr;
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server->sysdeps.netload = _glibtop_sysdeps_netload;
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}
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/* Provides network statistics. */
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void
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glibtop_get_netload_p (glibtop *server, glibtop_netload *buf,
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const char *interface)
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{
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int result;
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off_t offset;
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struct ifnet ifnet;
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long addr;
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long mask;
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char name[16];
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glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_UPTIME), 0);
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memset (buf, 0, sizeof (glibtop_netload));
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for ( offset = server->machine->ifnet_offset;
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offset != 0;
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offset = (off_t)ifnet.if_next
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)
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{
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result = _glibtop_get_kmem_info(server, offset,
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&ifnet, sizeof(ifnet));
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if (result <= 0)
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{
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glibtop_error_io_r (server, "Cannot read ifnet");
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return;
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}
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result = _glibtop_get_kmem_info(server, (off_t)ifnet.if_name,
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name, sizeof(name));
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if (result <= 0)
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{
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glibtop_error_io_r (server, "Cannot read if_name");
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return;
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}
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sprintf(name+strlen(name), "%d", ifnet.if_unit);
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if (strcmp(name, interface) != 0)
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{
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continue;
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}
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if (ifnet.if_flags & IFF_UP)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_UP);
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if (ifnet.if_flags & IFF_BROADCAST)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_BROADCAST);
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if (ifnet.if_flags & IFF_LOOPBACK)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_LOOPBACK);
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if (ifnet.if_flags & IFF_POINTOPOINT)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_POINTOPOINT);
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if (ifnet.if_flags & IFF_RUNNING)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_RUNNING);
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if (ifnet.if_flags & IFF_NOARP)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_NOARP);
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if (ifnet.if_flags & IFF_PROMISC)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_PROMISC);
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if (ifnet.if_flags & IFF_ALLMULTI)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_ALLMULTI);
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if (ifnet.if_flags & IFF_OACTIVE)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_OACTIVE);
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if (ifnet.if_flags & IFF_SIMPLEX)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_SIMPLEX);
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if (ifnet.if_flags & IFF_LINK0)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_LINK0);
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if (ifnet.if_flags & IFF_LINK1)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_LINK1);
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if (ifnet.if_flags & IFF_LINK2)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_LINK2);
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if (ifnet.if_flags & IFF_LINK2)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_LINK2);
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if (ifnet.if_flags & 0x80000)
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buf->if_flags |= (1 << GLIBTOP_IF_FLAGS_MULTICAST);
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buf->mtu = ifnet.if_mtu;
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get_ifaddr(server, ifnet.if_addrlist, &addr, &mask);
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buf->subnet = addr & mask;
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buf->address = addr;
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buf->packets_in = ifnet.if_ipackets;
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buf->packets_out = ifnet.if_opackets;
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buf->packets_total = buf->packets_in + buf->packets_out;
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buf->bytes_in = ifnet.if_ibytes;
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buf->bytes_out = ifnet.if_obytes;
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buf->bytes_total = buf->bytes_in + buf->bytes_out;
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buf->errors_in = ifnet.if_ierrors;
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buf->errors_out = ifnet.if_oerrors;
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buf->errors_total = ifnet.if_ierrors + ifnet.if_oerrors;
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buf->collisions = ifnet.if_collisions;
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}
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buf->flags = _glibtop_sysdeps_netload;
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}
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