Add package respondd-module-airtime (#156)
See README.md for more information.
This commit is contained in:
parent
f8ec44d6aa
commit
e8cc8eeee6
|
@ -0,0 +1,42 @@
|
||||||
|
include $(TOPDIR)/rules.mk
|
||||||
|
|
||||||
|
PKG_NAME:=respondd-module-airtime
|
||||||
|
PKG_VERSION:=1
|
||||||
|
PKG_RELEASE:=1
|
||||||
|
|
||||||
|
PKG_LICENSE:=BSD-2-Clause
|
||||||
|
|
||||||
|
PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
|
||||||
|
PKG_BUILD_DEPENDS := respondd
|
||||||
|
|
||||||
|
include $(INCLUDE_DIR)/package.mk
|
||||||
|
|
||||||
|
define Package/respondd-module-airtime
|
||||||
|
SECTION:=net
|
||||||
|
CATEGORY:=Network
|
||||||
|
TITLE:=Add airtime to respondd
|
||||||
|
DEPENDS:=+respondd +libnl-tiny
|
||||||
|
endef
|
||||||
|
|
||||||
|
define Build/Prepare
|
||||||
|
mkdir -p $(PKG_BUILD_DIR)
|
||||||
|
$(CP) ./src/* $(PKG_BUILD_DIR)/
|
||||||
|
endef
|
||||||
|
|
||||||
|
define Build/Configure
|
||||||
|
endef
|
||||||
|
|
||||||
|
|
||||||
|
TARGET_CFLAGS += -I$(STAGING_DIR)/usr/include/libnl-tiny
|
||||||
|
|
||||||
|
define Build/Compile
|
||||||
|
CFLAGS="$(TARGET_CFLAGS)" CPPFLAGS="$(TARGET_CPPFLAGS)" $(MAKE) -C $(PKG_BUILD_DIR) $(TARGET_CONFIGURE_OPTS)
|
||||||
|
endef
|
||||||
|
|
||||||
|
|
||||||
|
define Package/respondd-module-airtime/install
|
||||||
|
$(INSTALL_DIR) $(1)/lib/respondd
|
||||||
|
$(CP) $(PKG_BUILD_DIR)/respondd.so $(1)/lib/respondd/airtime.so
|
||||||
|
endef
|
||||||
|
|
||||||
|
$(eval $(call BuildPackage,respondd-module-airtime))
|
|
@ -0,0 +1,36 @@
|
||||||
|
This module adds a respondd airtime usage statistics provider.
|
||||||
|
The format is the following:
|
||||||
|
|
||||||
|
```json
|
||||||
|
{
|
||||||
|
"statistics": {
|
||||||
|
"wireless": [
|
||||||
|
{
|
||||||
|
"frequency": 5220,
|
||||||
|
"active": 366561161,
|
||||||
|
"busy": 46496566,
|
||||||
|
"rx": 808415,
|
||||||
|
"tx": 41711344,
|
||||||
|
"noise": 162
|
||||||
|
},
|
||||||
|
{
|
||||||
|
"frequency": 2437,
|
||||||
|
"active": 366649704,
|
||||||
|
"busy": 205221222,
|
||||||
|
"rx": 108121446,
|
||||||
|
"tx": 85453679,
|
||||||
|
"noise": 161
|
||||||
|
}
|
||||||
|
]
|
||||||
|
}
|
||||||
|
}
|
||||||
|
```
|
||||||
|
|
||||||
|
The numbers `active`, `busy`, `rx` and `tx` are times in milliseconds, where
|
||||||
|
`busy`, `rx` and `tx` have to be interpreted by taking the quotient with
|
||||||
|
`active`.
|
||||||
|
|
||||||
|
The motivation for having a list with the frequency as a value in the objects
|
||||||
|
instead of having an object with the frequency as keys is that multiple wifi
|
||||||
|
devices might be present, in which case the same frequency can appear multiple
|
||||||
|
times (because the statistics are reported once for every phy).
|
|
@ -0,0 +1,16 @@
|
||||||
|
# standard compliance
|
||||||
|
CFLAGS += -std=c99
|
||||||
|
|
||||||
|
# warnings
|
||||||
|
CFLAGS += -Wall -Wextra -Wformat=2 -Wshadow -Wpointer-arith
|
||||||
|
CFLAGS += -pedantic
|
||||||
|
|
||||||
|
all: respondd.so
|
||||||
|
|
||||||
|
%.c: %.h
|
||||||
|
|
||||||
|
respondd.so: airtime.c ifaces.c respondd.c
|
||||||
|
$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -shared -fPIC -D_GNU_SOURCE -lnl-tiny -o $@ $^ $(LDLIBS)
|
||||||
|
|
||||||
|
clean:
|
||||||
|
rm -rf *.so
|
|
@ -0,0 +1,137 @@
|
||||||
|
/*
|
||||||
|
Copyright (c) 2016, Julian Kornberger <jk+freifunk@digineo.de>
|
||||||
|
Martin Müller <geno+ffhb@fireorbit.de>
|
||||||
|
Jan-Philipp Litza <janphilipp@litza.de>
|
||||||
|
All rights reserved.
|
||||||
|
|
||||||
|
Redistribution and use in source and binary forms, with or without
|
||||||
|
modification, are permitted provided that the following conditions are met:
|
||||||
|
|
||||||
|
1. Redistributions of source code must retain the above copyright notice,
|
||||||
|
this list of conditions and the following disclaimer.
|
||||||
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
||||||
|
this list of conditions and the following disclaimer in the documentation
|
||||||
|
and/or other materials provided with the distribution.
|
||||||
|
|
||||||
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||||
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||||
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
||||||
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||||
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||||
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
||||||
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
||||||
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <linux/nl80211.h>
|
||||||
|
#include <netlink/netlink.h>
|
||||||
|
#include <netlink/genl/genl.h>
|
||||||
|
#include <netlink/genl/ctrl.h>
|
||||||
|
#include <net/if.h>
|
||||||
|
|
||||||
|
#include "airtime.h"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Excerpt from nl80211.h:
|
||||||
|
* enum nl80211_survey_info - survey information
|
||||||
|
*
|
||||||
|
* These attribute types are used with %NL80211_ATTR_SURVEY_INFO
|
||||||
|
* when getting information about a survey.
|
||||||
|
*
|
||||||
|
* @__NL80211_SURVEY_INFO_INVALID: attribute number 0 is reserved
|
||||||
|
* @NL80211_SURVEY_INFO_FREQUENCY: center frequency of channel
|
||||||
|
* @NL80211_SURVEY_INFO_NOISE: noise level of channel (u8, dBm)
|
||||||
|
* @NL80211_SURVEY_INFO_IN_USE: channel is currently being used
|
||||||
|
* @NL80211_SURVEY_INFO_CHANNEL_TIME: amount of time (in ms) that the radio
|
||||||
|
* spent on this channel
|
||||||
|
* @NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY: amount of the time the primary
|
||||||
|
* channel was sensed busy (either due to activity or energy detect)
|
||||||
|
* @NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: amount of time the extension
|
||||||
|
* channel was sensed busy
|
||||||
|
* @NL80211_SURVEY_INFO_CHANNEL_TIME_RX: amount of time the radio spent
|
||||||
|
* receiving data
|
||||||
|
* @NL80211_SURVEY_INFO_CHANNEL_TIME_TX: amount of time the radio spent
|
||||||
|
* transmitting data
|
||||||
|
* @NL80211_SURVEY_INFO_MAX: highest survey info attribute number
|
||||||
|
* currently defined
|
||||||
|
* @__NL80211_SURVEY_INFO_AFTER_LAST: internal use
|
||||||
|
*/
|
||||||
|
|
||||||
|
static int survey_airtime_handler(struct nl_msg *msg, void *arg) {
|
||||||
|
struct nlattr *tb[NL80211_ATTR_MAX + 1];
|
||||||
|
struct nlattr *sinfo[NL80211_SURVEY_INFO_MAX + 1];
|
||||||
|
static struct nla_policy survey_policy[NL80211_SURVEY_INFO_MAX + 1] = {
|
||||||
|
[NL80211_SURVEY_INFO_FREQUENCY] = { .type = NLA_U32 },
|
||||||
|
[NL80211_SURVEY_INFO_NOISE] = { .type = NLA_U8 },
|
||||||
|
};
|
||||||
|
|
||||||
|
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
|
||||||
|
struct airtime_result *result = (struct airtime_result *) arg;
|
||||||
|
|
||||||
|
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL);
|
||||||
|
|
||||||
|
if (!tb[NL80211_ATTR_SURVEY_INFO]) {
|
||||||
|
fprintf(stderr, "survey data missing!\n");
|
||||||
|
goto abort;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (nla_parse_nested(sinfo, NL80211_SURVEY_INFO_MAX, tb[NL80211_ATTR_SURVEY_INFO], survey_policy)) {
|
||||||
|
fprintf(stderr, "failed to parse nested attributes!\n");
|
||||||
|
goto abort;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Channel active?
|
||||||
|
if (!sinfo[NL80211_SURVEY_INFO_IN_USE]){
|
||||||
|
goto abort;
|
||||||
|
}
|
||||||
|
|
||||||
|
result->frequency = nla_get_u32(sinfo[NL80211_SURVEY_INFO_FREQUENCY]);
|
||||||
|
result->active_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME]);
|
||||||
|
result->busy_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY]);
|
||||||
|
result->rx_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_RX]);
|
||||||
|
result->tx_time = nla_get_u64(sinfo[NL80211_SURVEY_INFO_CHANNEL_TIME_TX]);
|
||||||
|
result->noise = nla_get_u8(sinfo[NL80211_SURVEY_INFO_NOISE]);
|
||||||
|
|
||||||
|
abort:
|
||||||
|
return NL_SKIP;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool get_airtime(struct airtime_result *result, int ifx) {
|
||||||
|
bool ok = false;
|
||||||
|
int ctrl;
|
||||||
|
struct nl_sock *sk = NULL;
|
||||||
|
struct nl_msg *msg = NULL;
|
||||||
|
|
||||||
|
|
||||||
|
#define CHECK(x) { if (!(x)) { fprintf(stderr, "%s: error on line %d\n", __FILE__, __LINE__); goto out; } }
|
||||||
|
|
||||||
|
CHECK(sk = nl_socket_alloc());
|
||||||
|
CHECK(genl_connect(sk) >= 0);
|
||||||
|
|
||||||
|
CHECK(ctrl = genl_ctrl_resolve(sk, NL80211_GENL_NAME));
|
||||||
|
CHECK(nl_socket_modify_cb(sk, NL_CB_VALID, NL_CB_CUSTOM, survey_airtime_handler, result) == 0);
|
||||||
|
CHECK(msg = nlmsg_alloc());
|
||||||
|
CHECK(genlmsg_put(msg, 0, 0, ctrl, 0, NLM_F_DUMP, NL80211_CMD_GET_SURVEY, 0));
|
||||||
|
|
||||||
|
NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, ifx);
|
||||||
|
|
||||||
|
CHECK(nl_send_auto_complete(sk, msg) >= 0);
|
||||||
|
CHECK(nl_recvmsgs_default(sk) >= 0);
|
||||||
|
|
||||||
|
#undef CHECK
|
||||||
|
|
||||||
|
ok = true;
|
||||||
|
|
||||||
|
nla_put_failure:
|
||||||
|
out:
|
||||||
|
if (msg)
|
||||||
|
nlmsg_free(msg);
|
||||||
|
|
||||||
|
if (sk)
|
||||||
|
nl_socket_free(sk);
|
||||||
|
|
||||||
|
return ok;
|
||||||
|
}
|
|
@ -0,0 +1,15 @@
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <stdbool.h>
|
||||||
|
#include <stdint.h>
|
||||||
|
|
||||||
|
struct airtime_result {
|
||||||
|
uint64_t active_time;
|
||||||
|
uint64_t busy_time;
|
||||||
|
uint64_t rx_time;
|
||||||
|
uint64_t tx_time;
|
||||||
|
uint32_t frequency;
|
||||||
|
uint8_t noise;
|
||||||
|
};
|
||||||
|
|
||||||
|
__attribute__((visibility("hidden"))) bool get_airtime(struct airtime_result *result, int ifx);
|
|
@ -0,0 +1,62 @@
|
||||||
|
#include <sys/socket.h>
|
||||||
|
#include <linux/nl80211.h>
|
||||||
|
#include <netlink/netlink.h>
|
||||||
|
#include <netlink/genl/genl.h>
|
||||||
|
#include <netlink/genl/ctrl.h>
|
||||||
|
#include <net/if.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
|
||||||
|
#include "ifaces.h"
|
||||||
|
|
||||||
|
static int iface_dump_handler(struct nl_msg *msg, void *arg) {
|
||||||
|
struct nlattr *tb[NL80211_ATTR_MAX + 1];
|
||||||
|
struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
|
||||||
|
int wiphy;
|
||||||
|
struct iface_list **last_next;
|
||||||
|
|
||||||
|
nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0), genlmsg_attrlen(gnlh, 0), NULL);
|
||||||
|
|
||||||
|
wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
|
||||||
|
for (last_next = arg; *last_next != NULL; last_next = &(*last_next)->next) {
|
||||||
|
if ((*last_next)->wiphy == wiphy)
|
||||||
|
goto skip;
|
||||||
|
}
|
||||||
|
*last_next = malloc(sizeof(**last_next));
|
||||||
|
(*last_next)->next = NULL;
|
||||||
|
(*last_next)->ifx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
|
||||||
|
(*last_next)->wiphy = wiphy;
|
||||||
|
|
||||||
|
skip:
|
||||||
|
return NL_SKIP;
|
||||||
|
}
|
||||||
|
|
||||||
|
struct iface_list *get_ifaces() {
|
||||||
|
int ctrl;
|
||||||
|
struct nl_sock *sk = NULL;
|
||||||
|
struct nl_msg *msg = NULL;
|
||||||
|
struct iface_list *ifaces = NULL;
|
||||||
|
|
||||||
|
#define CHECK(x) { if (!(x)) { fprintf(stderr, "%s: error on line %d\n", __FILE__, __LINE__); goto out; } }
|
||||||
|
|
||||||
|
CHECK(sk = nl_socket_alloc());
|
||||||
|
CHECK(genl_connect(sk) >= 0);
|
||||||
|
|
||||||
|
CHECK(ctrl = genl_ctrl_resolve(sk, NL80211_GENL_NAME));
|
||||||
|
CHECK(nl_socket_modify_cb(sk, NL_CB_VALID, NL_CB_CUSTOM, iface_dump_handler, &ifaces) == 0);
|
||||||
|
CHECK(msg = nlmsg_alloc());
|
||||||
|
CHECK(genlmsg_put(msg, 0, 0, ctrl, 0, NLM_F_DUMP, NL80211_CMD_GET_INTERFACE, 0));
|
||||||
|
|
||||||
|
CHECK(nl_send_auto_complete(sk, msg) >= 0);
|
||||||
|
CHECK(nl_recvmsgs_default(sk) >= 0);
|
||||||
|
|
||||||
|
#undef CHECK
|
||||||
|
|
||||||
|
out:
|
||||||
|
if (msg)
|
||||||
|
nlmsg_free(msg);
|
||||||
|
|
||||||
|
if (sk)
|
||||||
|
nl_socket_free(sk);
|
||||||
|
|
||||||
|
return ifaces;
|
||||||
|
}
|
|
@ -0,0 +1,9 @@
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
struct iface_list {
|
||||||
|
int ifx;
|
||||||
|
int wiphy;
|
||||||
|
struct iface_list *next;
|
||||||
|
};
|
||||||
|
|
||||||
|
__attribute__((visibility("hidden"))) struct iface_list *get_ifaces();
|
|
@ -0,0 +1,58 @@
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <json-c/json.h>
|
||||||
|
#include <respondd.h>
|
||||||
|
|
||||||
|
#include "airtime.h"
|
||||||
|
#include "ifaces.h"
|
||||||
|
|
||||||
|
static void fill_airtime_json(struct airtime_result *air, struct json_object *wireless) {
|
||||||
|
struct json_object *obj;
|
||||||
|
|
||||||
|
obj = json_object_new_object();
|
||||||
|
if (!obj)
|
||||||
|
return;
|
||||||
|
|
||||||
|
json_object_object_add(obj, "frequency", json_object_new_int(air->frequency));
|
||||||
|
json_object_object_add(obj, "active", json_object_new_int64(air->active_time));
|
||||||
|
json_object_object_add(obj, "busy", json_object_new_int64(air->busy_time));
|
||||||
|
json_object_object_add(obj, "rx", json_object_new_int64(air->rx_time));
|
||||||
|
json_object_object_add(obj, "tx", json_object_new_int64(air->tx_time));
|
||||||
|
json_object_object_add(obj, "noise", json_object_new_int(air->noise));
|
||||||
|
|
||||||
|
json_object_array_add(wireless, obj);
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct json_object *respondd_provider_statistics(void) {
|
||||||
|
struct airtime_result airtime = {0};
|
||||||
|
struct json_object *result, *wireless;
|
||||||
|
struct iface_list *ifaces;
|
||||||
|
|
||||||
|
result = json_object_new_object();
|
||||||
|
if (!result)
|
||||||
|
return NULL;
|
||||||
|
|
||||||
|
wireless = json_object_new_array();
|
||||||
|
if (!wireless) {
|
||||||
|
json_object_put(result);
|
||||||
|
return NULL;
|
||||||
|
}
|
||||||
|
|
||||||
|
ifaces = get_ifaces();
|
||||||
|
while (ifaces != NULL) {
|
||||||
|
if (get_airtime(&airtime, ifaces->ifx))
|
||||||
|
fill_airtime_json(&airtime, wireless);
|
||||||
|
|
||||||
|
void *freeptr = ifaces;
|
||||||
|
ifaces = ifaces->next;
|
||||||
|
free(freeptr);
|
||||||
|
}
|
||||||
|
|
||||||
|
json_object_object_add(result, "wireless", wireless);
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
const struct respondd_provider_info respondd_providers[] = {
|
||||||
|
{"statistics", respondd_provider_statistics},
|
||||||
|
{0, 0},
|
||||||
|
};
|
Loading…
Reference in New Issue