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/*
* Copyright (C) 2017 Tobias Brunner
* HSR Hochschule fuer Technik Rapperswil
*
* This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include "command.h"
CALLBACK(counters_kv, int,
void *null, vici_res_t *res, char *name, void *value, int len)
{
if (chunk_printable(chunk_create(value, len), NULL, ' '))
{
printf(" %-22s: %.*s\n", name, len, value);
}
return 0;
}
CALLBACK(conns_sn, int,
void *null, vici_res_t *res, char *name)
{
printf("%s:\n", strlen(name) ? name : "global");
return vici_parse_cb(res, NULL, counters_kv, NULL, NULL);
}
CALLBACK(counters_sn, int,
void *null, vici_res_t *res, char *name)
{
return vici_parse_cb(res, conns_sn, NULL, NULL, NULL);
}
static int counters(vici_conn_t *conn)
{
vici_req_t *req;
vici_res_t *res;
command_format_options_t format = COMMAND_FORMAT_NONE;
char *arg, *name = NULL;
int ret = 0;
bool all = FALSE, reset = FALSE;
while (TRUE)
{
switch (command_getopt(&arg))
{
case 'h':
return command_usage(NULL);
case 'P':
format |= COMMAND_FORMAT_PRETTY;
/* fall through to raw */
case 'r':
format |= COMMAND_FORMAT_RAW;
continue;
case 'n':
name = arg;
continue;
case 'a':
all = TRUE;
continue;
case 'R':
reset = TRUE;
continue;
case EOF:
break;
default:
return command_usage("invalid --counters option");
}
break;
}
if (reset)
{
req = vici_begin("reset-counters");
}
else
{
req = vici_begin("get-counters");
}
if (all)
{
vici_add_key_valuef(req, "all", "yes");
}
else if (name)
{
vici_add_key_valuef(req, "name", "%s", name);
}
res = vici_submit(req, conn);
if (!res)
{
ret = errno;
fprintf(stderr, "%s-counters request failed: %s\n",
reset ? "reset" : "get", strerror(errno));
return ret;
}
if (format & COMMAND_FORMAT_RAW)
{
vici_dump(res, "counters reply", format & COMMAND_FORMAT_PRETTY,
stdout);
}
else
{
if (streq(vici_find_str(res, "no", "success"), "yes"))
{
if (reset)
{
printf("reset-counters completed successfully\n");
}
else if (vici_parse_cb(res, counters_sn, NULL, NULL, NULL) != 0)
{
fprintf(stderr, "parsing get-counters reply failed: %s\n",
strerror(errno));
}
}
else
{
fprintf(stderr, "%s-counters failed: %s\n", reset ? "reset" : "get",
vici_find_str(res, "", "errmsg"));
ret = 1;
}
}
vici_free_res(res);
return ret;
}
/**
* Register the command.
*/
static void __attribute__ ((constructor))reg()
{
command_register((command_t) {
counters, 'C', "counters", "list or reset IKE event counters",
{"[--name <name>|--all] [--reset] [--raw|--pretty]"},
{
{"help", 'h', 0, "show usage information"},
{"name", 'n', 1, "connection name, omit for global counters"},
{"all", 'a', 0, "get/reset counters for all tracked connections"},
{"reset", 'R', 0, "reset the counters"},
{"raw", 'r', 0, "dump raw response message"},
{"pretty", 'P', 0, "dump raw response message in pretty print"},
}
});
}
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