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refactor(network): re-add MAX_RETRY in order to detect external interface

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This commit is contained in:
Alex 2019-05-28 11:08:48 +02:00
parent 74e40432e5
commit 5ae5821929
2 changed files with 36 additions and 33 deletions
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1
include/modules/network.hpp
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@ -67,7 +67,6 @@ class Network : public ALabel {
std::string ipaddr_;
std::string netmask_;
int cidr_;
bool linked_;
int32_t signal_strength_dbm_;
uint8_t signal_strength_;
uint32_t frequency_;

68
src/modules/network.cpp
View File

@ -96,8 +96,8 @@ waybar::modules::Network::Network(const std::string &id, const Json::Value &conf
bandwidth_up_total_ = 0;
}
createInfoSocket();
createEventSocket();
createInfoSocket();
auto default_iface = getPreferredIface();
if (default_iface != -1) {
ifid_ = default_iface;
@ -135,11 +135,12 @@ waybar::modules::Network::~Network() {
}
}
void waybar::modules::Network::createInfoSocket() {
void waybar::modules::Network::createEventSocket() {
ev_sock_ = nl_socket_alloc();
nl_socket_disable_seq_check(ev_sock_);
nl_socket_modify_cb(ev_sock_, NL_CB_VALID, NL_CB_CUSTOM, handleEvents, this);
nl_join_groups(ev_sock_, RTMGRP_LINK);
auto groups = RTMGRP_LINK | (family_ == AF_INET ? RTMGRP_IPV4_IFADDR : RTMGRP_IPV6_IFADDR);
nl_join_groups(ev_sock_, groups); // Deprecated
if (nl_connect(ev_sock_, NETLINK_ROUTE) != 0) {
throw std::runtime_error("Can't connect network socket");
}
@ -175,7 +176,7 @@ void waybar::modules::Network::createInfoSocket() {
}
}
void waybar::modules::Network::createEventSocket() {
void waybar::modules::Network::createInfoSocket() {
sock_ = nl_socket_alloc();
if (genl_connect(sock_) != 0) {
throw std::runtime_error("Can't connect to netlink socket");
@ -205,9 +206,7 @@ void waybar::modules::Network::worker() {
int ec = epoll_wait(efd_, events.data(), EPOLL_MAX, -1);
if (ec > 0) {
for (auto i = 0; i < ec; i++) {
if (events[i].data.fd == nl_socket_get_fd(ev_sock_)) {
nl_recvmsgs_default(ev_sock_);
} else {
if (events[i].data.fd != nl_socket_get_fd(ev_sock_) || nl_recvmsgs_default(ev_sock_) < 0) {
thread_.stop();
break;
}
@ -217,7 +216,7 @@ void waybar::modules::Network::worker() {
}
const std::string waybar::modules::Network::getNetworkState() const {
if (ifid_ == -1 || !linked_) return "disconnected";
if (ifid_ == -1) return "disconnected";
if (ipaddr_.empty()) return "linked";
if (essid_.empty()) return "ethernet";
return "wifi";
@ -470,7 +469,6 @@ void waybar::modules::Network::getInterfaceAddress() {
auto net_addr = reinterpret_cast<struct sockaddr_in *>(ifa->ifa_netmask);
netmask_ = inet_ntop(family_, &net_addr->sin_addr, netmask, INET6_ADDRSTRLEN);
cidrRaw = net_addr->sin_addr.s_addr;
linked_ = ifa->ifa_flags & IFF_RUNNING;
unsigned int cidr = 0;
while (cidrRaw) {
cidr += cidrRaw & 1;
@ -567,7 +565,6 @@ void waybar::modules::Network::clearIface() {
signal_strength_dbm_ = 0;
signal_strength_ = 0;
frequency_ = 0;
linked_ = false;
}
void waybar::modules::Network::checkNewInterface(struct ifinfomsg *rtif) {
@ -577,7 +574,6 @@ void waybar::modules::Network::checkNewInterface(struct ifinfomsg *rtif) {
char ifname[IF_NAMESIZE];
if_indextoname(new_iface, ifname);
ifname_ = ifname;
linked_ = true;
getInterfaceAddress();
thread_timer_.wake_up();
} else {
@ -590,55 +586,63 @@ int waybar::modules::Network::handleEvents(struct nl_msg *msg, void *data) {
auto net = static_cast<waybar::modules::Network *>(data);
std::lock_guard<std::mutex> lock(net->mutex_);
auto nh = nlmsg_hdr(msg);
auto rtif = static_cast<struct ifinfomsg *>(NLMSG_DATA(nh));
auto ifi = static_cast<struct ifinfomsg *>(NLMSG_DATA(nh));
if (nh->nlmsg_type == RTM_DELADDR) {
// Check for valid interface
if (rtif->ifi_index == net->ifid_) {
if (ifi->ifi_index == net->ifid_) {
net->ipaddr_.clear();
net->netmask_.clear();
net->cidr_ = 0;
if (!(rtif->ifi_flags & IFF_RUNNING)) {
if (!(ifi->ifi_flags & IFF_RUNNING)) {
net->clearIface();
// Check for a new interface and get info
net->checkNewInterface(rtif);
net->checkNewInterface(ifi);
}
net->dp.emit();
return NL_OK;
}
} else if (nh->nlmsg_type == RTM_NEWLINK || nh->nlmsg_type == RTM_DELLINK) {
char ifname[IF_NAMESIZE];
if_indextoname(rtif->ifi_index, ifname);
if_indextoname(ifi->ifi_index, ifname);
// Check for valid interface
if (rtif->ifi_flags & IFF_RUNNING && net->checkInterface(rtif, ifname)) {
net->linked_ = !!(rtif->ifi_flags & IFF_RUNNING);
if (net->checkInterface(ifi, ifname)) {
net->ifname_ = ifname;
net->ifid_ = rtif->ifi_index;
net->ifid_ = ifi->ifi_index;
// Get Iface and WIFI info
net->getInterfaceAddress();
net->thread_timer_.wake_up();
} else if (rtif->ifi_index == net->ifid_ && !(rtif->ifi_flags & IFF_RUNNING)) {
return NL_OK;
} else if (ifi->ifi_index == net->ifid_ && !(ifi->ifi_flags & IFF_RUNNING)) {
net->clearIface();
// Check for a new interface and get info
net->checkNewInterface(rtif);
net->checkNewInterface(ifi);
return NL_OK;
}
} else {
char ifname[IF_NAMESIZE];
if_indextoname(rtif->ifi_index, ifname);
if_indextoname(ifi->ifi_index, ifname);
// Auto detected network can also be assigned here
if ((net->ifid_ == -1 || rtif->ifi_index != net->ifid_) && net->checkInterface(rtif, ifname)) {
// If iface is different, clear data
if (rtif->ifi_index != net->ifid_) {
net->clearIface();
if (net->ifid_ == -1 || ifi->ifi_index != net->ifid_) {
// checkInterface may need some delay to detect external interface
for (uint8_t tries = 0; tries < MAX_RETRY; tries += 1) {
if (net->checkInterface(ifi, ifname)) {
// If iface is different, clear data
if (ifi->ifi_index != net->ifid_) {
net->clearIface();
}
net->ifname_ = ifname;
net->ifid_ = ifi->ifi_index;
break;
}
std::this_thread::sleep_for(std::chrono::milliseconds(500));
}
net->linked_ = true;
net->ifname_ = ifname;
net->ifid_ = rtif->ifi_index;
}
// Check for valid interface
if (rtif->ifi_index == net->ifid_) {
net->linked_ = true;
if (ifi->ifi_index == net->ifid_) {
// Get Iface and WIFI info
net->getInterfaceAddress();
net->thread_timer_.wake_up();
return NL_OK;
}
}
return NL_SKIP;
@ -676,7 +680,7 @@ int waybar::modules::Network::handleScan(struct nl_msg *msg, void *data) {
net->parseEssid(bss);
net->parseSignal(bss);
net->parseFreq(bss);
return NL_SKIP;
return NL_OK;
}
void waybar::modules::Network::parseEssid(struct nlattr **bss) {