/*
* in_sysctl.c sysctl (BSD)
*
* Copyright (c) 2001-2004 Thomas Graf <tgraf@suug.ch>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <bmon/bmon.h>
#include <bmon/input.h>
#include <bmon/item.h>
#include <bmon/conf.h>
#include <bmon/node.h>
#include <bmon/utils.h>
#if defined SYS_BSD
#include <sys/socket.h>
#include <net/if.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <net/if_dl.h>
#include <net/route.h>
static int c_debug;
static void sysctl_read(void)
{
int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
size_t n;
char *buf, *next, *lim;
if (sysctl(mib, 6, NULL, &n, NULL, 0) < 0)
quit("sysctl() failed");
if (c_debug)
fprintf(stderr, "sysctl 1-pass n=%d\n", (int) n);
buf = xcalloc(1, n);
if (sysctl(mib, 6, buf, &n, NULL, 0) < 0)
quit("sysctl() failed");
if (c_debug)
fprintf(stderr, "sysctl 2-pass n=%d\n", (int) n);
lim = buf + n;
next = buf;
while (next < lim) {
struct if_msghdr *ifm, *nextifm;
struct sockaddr_dl *sdl;
item_t *it;
ifm = (struct if_msghdr *) next;
if (ifm->ifm_type != RTM_IFINFO)
break;
next += ifm->ifm_msglen;
while (next < lim) {
nextifm = (struct if_msghdr *) next;
if (nextifm->ifm_type != RTM_NEWADDR)
break;
next += nextifm->ifm_msglen;
}
sdl = (struct sockaddr_dl *) (ifm + 1);
if (sdl->sdl_family != AF_LINK)
continue;
if (get_show_only_running() && !(ifm->ifm_flags & IFF_UP))
continue;
if (c_debug)
fprintf(stderr, "Processing %s\n", sdl->sdl_data);
it = lookup_item(get_local_node(), sdl->sdl_data, 0, 0);
if (it == NULL)
continue;
it->i_major_attr = BYTES;
it->i_minor_attr = PACKETS;
update_attr(it, PACKETS,
ifm->ifm_data.ifi_ipackets,
ifm->ifm_data.ifi_opackets,
RX_PROVIDED | TX_PROVIDED);
update_attr(it, BYTES,
ifm->ifm_data.ifi_ibytes,
ifm->ifm_data.ifi_obytes,
RX_PROVIDED | TX_PROVIDED);
update_attr(it, ERRORS,
ifm->ifm_data.ifi_ierrors,
ifm->ifm_data.ifi_oerrors,
RX_PROVIDED | TX_PROVIDED);
update_attr(it, COLLISIONS,
0, ifm->ifm_data.ifi_collisions,
TX_PROVIDED);
update_attr(it, MULTICAST,
ifm->ifm_data.ifi_imcasts,
0,
RX_PROVIDED);
update_attr(it, DROP,
0,
ifm->ifm_data.ifi_iqdrops,
TX_PROVIDED);
notify_update(it, NULL);
increase_lifetime(it, 1);
}
xfree(buf);
}
static void print_help(void)
{
printf(
"sysctl - sysctl statistic collector for BSD and Darwin\n" \
"\n" \
" BSD and Darwin statistic collector using sysctl()\n" \
" Author: Thomas Graf <tgraf@suug.ch>\n" \
"\n");
}
static void sysctl_set_opts(tv_t *attrs)
{
while (attrs) {
if (!strcasecmp(attrs->type, "debug"))
c_debug = 1;
else if (!strcasecmp(attrs->type, "help")) {
print_help();
exit(0);
}
attrs = attrs->next;
}
}
static int sysctl_probe(void)
{
size_t n;
int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
if (sysctl(mib, 6, NULL, &n, NULL, 0) < 0)
return 0;
return 1;
}
static struct input_module kstat_ops = {
.im_name = "sysctl",
.im_read = sysctl_read,
.im_set_opts = sysctl_set_opts,
.im_probe = sysctl_probe,
};
static void __init sysctl_init(void)
{
register_input_module(&kstat_ops);
}
#endif
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