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/*
* wprobe-test.c: Wireless probe user space test code
* Copyright (C) 2008-2009 Felix Fietkau <nbd@openwrt.org>
*
* 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.
*
* 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.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <inttypes.h>
#include <errno.h>
#include <stdint.h>
#include <getopt.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/wprobe.h>
#include "wprobe.h"
static const char *
wprobe_dump_value(struct wprobe_attribute *attr)
{
static char buf[128];
#define HANDLE_TYPE(_type, _format) \
case WPROBE_VAL_##_type: \
snprintf(buf, sizeof(buf), _format, attr->val._type); \
break
switch(attr->type) {
HANDLE_TYPE(S8, "%d");
HANDLE_TYPE(S16, "%d");
HANDLE_TYPE(S32, "%d");
HANDLE_TYPE(S64, "%lld");
HANDLE_TYPE(U8, "%d");
HANDLE_TYPE(U16, "%d");
HANDLE_TYPE(U32, "%d");
HANDLE_TYPE(U64, "%lld");
case WPROBE_VAL_STRING:
/* FIXME: implement this */
default:
strncpy(buf, "<unknown>", sizeof(buf));
break;
}
if ((attr->flags & WPROBE_F_KEEPSTAT) &&
(attr->val.n > 0)) {
int len = strlen(buf);
snprintf(buf + len, sizeof(buf) - len, " (avg: %.02f; stdev: %.02f, n=%d)", attr->val.avg, attr->val.stdev, attr->val.n);
}
#undef HANDLE_TYPE
return buf;
}
static void
wprobe_dump_data(struct wprobe_iface *dev)
{
struct wprobe_attribute *attr;
struct wprobe_link *link;
bool first = true;
fprintf(stderr, "\n");
wprobe_request_data(dev, NULL);
list_for_each_entry(attr, &dev->global_attr, list) {
fprintf(stderr, (first ?
"Global: %s=%s\n" :
" %s=%s\n"),
attr->name,
wprobe_dump_value(attr)
);
first = false;
}
list_for_each_entry(link, &dev->links, list) {
first = true;
wprobe_request_data(dev, link->addr);
list_for_each_entry(attr, &dev->link_attr, list) {
if (first) {
fprintf(stderr,
"%02x:%02x:%02x:%02x:%02x:%02x: %s=%s\n",
link->addr[0], link->addr[1], link->addr[2],
link->addr[3], link->addr[4], link->addr[5],
attr->name,
wprobe_dump_value(attr));
first = false;
} else {
fprintf(stderr,
" %s=%s\n",
attr->name,
wprobe_dump_value(attr));
}
}
}
}
static const char *attr_typestr[] = {
[0] = "Unknown",
[WPROBE_VAL_STRING] = "String",
[WPROBE_VAL_U8] = "Unsigned 8 bit",
[WPROBE_VAL_U16] = "Unsigned 16 bit",
[WPROBE_VAL_U32] = "Unsigned 32 bit",
[WPROBE_VAL_U64] = "Unsigned 64 bit",
[WPROBE_VAL_S8] = "Signed 8 bit",
[WPROBE_VAL_S16] = "Signed 16 bit",
[WPROBE_VAL_S32] = "Signed 32 bit",
[WPROBE_VAL_S64] = "Signed 64 bit",
};
static int usage(const char *prog)
{
fprintf(stderr,
"Usage: %s <interface> [options]\n"
"\n"
"Options:\n"
" -c: Only apply configuration\n"
" -h: This help text\n"
" -i <interval>: Set measurement interval\n"
" -m: Run measurement loop\n"
"\n"
, prog);
exit(1);
}
static void show_attributes(struct wprobe_iface *dev)
{
struct wprobe_attribute *attr;
list_for_each_entry(attr, &dev->global_attr, list) {
fprintf(stderr, "Global attribute: '%s' (%s)\n",
attr->name, attr_typestr[attr->type]);
}
list_for_each_entry(attr, &dev->link_attr, list) {
fprintf(stderr, "Link attribute: '%s' (%s)\n",
attr->name, attr_typestr[attr->type]);
}
}
static void loop_measurement(struct wprobe_iface *dev)
{
while (1) {
sleep(1);
wprobe_update_links(dev);
wprobe_dump_data(dev);
}
}
int main(int argc, char **argv)
{
struct wprobe_iface *dev;
const char *ifname;
const char *prog = argv[0];
enum {
CMD_NONE,
CMD_CONFIG,
CMD_MEASURE,
} cmd = CMD_NONE;
int ch;
if ((argc < 2) || (argv[1][0] == '-'))
return usage(prog);
ifname = argv[1];
dev = wprobe_get_dev(ifname);
argv++;
argc--;
if (!dev || (list_empty(&dev->global_attr) &&
list_empty(&dev->link_attr))) {
fprintf(stderr, "Interface '%s' not found\n", ifname);
return -1;
}
while ((ch = getopt(argc, argv, "chi:m")) != -1) {
switch(ch) {
case 'c':
cmd = CMD_CONFIG;
break;
case 'm':
cmd = CMD_MEASURE;
break;
case 'i':
dev->interval = strtoul(optarg, NULL, 10);
break;
case 'h':
default:
usage(prog);
break;
}
}
wprobe_apply_config(dev);
if (cmd != CMD_CONFIG)
show_attributes(dev);
if (cmd == CMD_MEASURE)
loop_measurement(dev);
wprobe_free_dev(dev);
return 0;
}
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