/*
* in_proc.c /proc/net/dev Input (Linux)
*
* 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/node.h>
#include <bmon/item.h>
#include <bmon/utils.h>
#include <inttypes.h>
static char *c_path = "/proc/net/dev";
static void proc_read(void)
{
FILE * fd;
char buf[512], *p, *s;
int w;
item_t *it;
if (!(fd = fopen(c_path, "r")))
quit("Unable to open file %s: %s\n", c_path, strerror(errno));
fgets(buf, sizeof(buf), fd);
fgets(buf, sizeof(buf), fd);
for (; fgets(buf, sizeof(buf), fd);) {
b_cnt_t rx_errors, rx_drop, rx_fifo, rx_frame, rx_compressed;
b_cnt_t rx_multicast, tx_errors, tx_drop, tx_fifo, tx_frame;
b_cnt_t tx_compressed, tx_multicast, rx_bytes, tx_bytes;
b_cnt_t rx_packets, tx_packets;
if (buf[0] == '\r' || buf[0] == '\n')
continue;
if (!(p = strchr(buf, ':')))
continue;
*p = '\0';
s = (p + 1);
for (p = &buf[0]; *p == ' '; p++);
/*
* XXX: get_show_only_running
*/
if ((it = lookup_item(get_local_node(), p, 0, 0)) == NULL)
continue;
w = sscanf(s, "%" SCNu64 " %" SCNu64 " %" SCNu64 " %" SCNu64 " "
"%" SCNu64 " %" SCNu64 " %" SCNu64 " %" SCNu64 " "
"%" SCNu64 " %" SCNu64 " %" SCNu64 " %" SCNu64 " "
"%" SCNu64 " %" SCNu64 " %" SCNu64 " %" SCNu64 "\n",
&rx_bytes, &rx_packets, &rx_errors, &rx_drop, &rx_fifo,
&rx_frame, &rx_compressed, &rx_multicast, &tx_bytes,
&tx_packets, &tx_errors, &tx_drop, &tx_fifo,
&tx_frame, &tx_compressed, &tx_multicast);
if (w != 16)
continue;
it->i_major_attr = BYTES;
it->i_minor_attr = PACKETS;
update_attr(it, BYTES, rx_bytes, tx_bytes, RX_PROVIDED|TX_PROVIDED);
update_attr(it, PACKETS, rx_packets, tx_packets, RX_PROVIDED|TX_PROVIDED);
update_attr(it, ERRORS, rx_errors, tx_errors, RX_PROVIDED|TX_PROVIDED);
update_attr(it, DROP, rx_drop, tx_drop, RX_PROVIDED|TX_PROVIDED);
update_attr(it, FIFO, rx_fifo, tx_fifo, RX_PROVIDED|TX_PROVIDED);
update_attr(it, FRAME, rx_frame, tx_frame, RX_PROVIDED|TX_PROVIDED);
update_attr(it, COMPRESSED, rx_compressed, tx_compressed, RX_PROVIDED|TX_PROVIDED);
update_attr(it, MULTICAST, rx_multicast, tx_multicast, RX_PROVIDED|TX_PROVIDED);
notify_update(it, NULL);
increase_lifetime(it, 1);
}
fclose(fd);
}
static void print_help(void)
{
printf(
"proc - procfs statistic collector for Linux" \
"\n" \
" Reads statistics from procfs (/proc/net/dev)\n" \
" Author: Thomas Graf <tgraf@suug.ch>\n" \
"\n" \
" Options:\n" \
" file=PATH Path to statistics file (default: /proc/net/dev)\n");
}
static void proc_set_opts(tv_t *attrs)
{
while (attrs) {
if (!strcasecmp(attrs->type, "file") && attrs->value)
c_path = attrs->value;
else if (!strcasecmp(attrs->type, "help")) {
print_help();
exit(0);
}
attrs = attrs->next;
}
}
static int proc_probe(void)
{
FILE *fd = fopen(c_path, "r");
if (fd) {
fclose(fd);
return 1;
}
return 0;
}
static struct input_module proc_ops = {
.im_name = "proc",
.im_read = proc_read,
.im_set_opts = proc_set_opts,
.im_probe = proc_probe,
};
static void __init proc_init(void)
{
register_input_module(&proc_ops);
}
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>