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/*
* src/nl-link-stats.c Retrieve link statistics
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation version 2.1
* of the License.
*
* Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
*/
#include "utils.h"
static void print_usage(void)
{
printf(
"Usage: nl-link-stats <ifindex> [<statistic> ...]\n"
" ifindex := { all | number }\n"
" statistic := { (rx|tx)_packets | (rx|tx)_bytes | (rx|tx)_errors |\n"
" (rx|tx)_dropped | (rx|tx)_compressed | (rx|tx)_fifo_err |\n" \
" rx_len_err | rx_over_err | rx_crc_err | rx_frame_err |\n"
" rx_missed_err | tx_abort_err | tx_carrier_err |\n"
" tx_hbeat_err | tx_win_err | tx_collision | multicast }\n");
exit(1);
}
static char **gargv;
static int gargc;
static void dump_stat(struct rtnl_link *link, int id)
{
uint64_t st = rtnl_link_get_stat(link, id);
char buf[62];
printf("%s.%s %" PRIu64 "\n", rtnl_link_get_name(link),
rtnl_link_stat2str(id, buf, sizeof(buf)), st);
}
static void dump_stats(struct nl_object *obj, void *arg)
{
int i;
struct rtnl_link *link = (struct rtnl_link *) obj;
if (!strcasecmp(gargv[0], "all")) {
for (i = 0; i < RTNL_LINK_STATS_MAX; i++)
dump_stat(link, i);
} else {
for (i = 0; i < gargc; i++) {
int id = rtnl_link_str2stat(gargv[i]);
if (id < 0)
fprintf(stderr, "Warning: Unknown statistic "
"\"%s\"\n", gargv[i]);
else
dump_stat(link, id);
}
}
}
int main(int argc, char *argv[])
{
struct nl_handle *nlh;
struct nl_cache *link_cache;
int err = 1;
if (nltool_init(argc, argv) < 0)
return -1;
if (argc < 3 || !strcmp(argv[1], "-h"))
print_usage();
nlh = nltool_alloc_handle();
if (!nlh)
return -1;
if (nltool_connect(nlh, NETLINK_ROUTE) < 0)
goto errout;
link_cache = nltool_alloc_link_cache(nlh);
if (!link_cache)
goto errout_close;
gargv = &argv[2];
gargc = argc - 2;
if (!strcasecmp(argv[1], "all"))
nl_cache_foreach(link_cache, dump_stats, NULL);
else {
int ifindex = strtoul(argv[1], NULL, 0);
struct rtnl_link *link = rtnl_link_get(link_cache, ifindex);
if (!link) {
fprintf(stderr, "Could not find ifindex %d\n", ifindex);
goto errout_link_cache;
}
dump_stats((struct nl_object *) link, NULL);
rtnl_link_put(link);
}
err = 0;
errout_link_cache:
nl_cache_free(link_cache);
errout_close:
nl_close(nlh);
errout:
nl_handle_destroy(nlh);
return err;
}
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