f7b547171e
Make it possible to build a custom UI which uses EthernetRecoveryUI. Since EthernetRecoveryUI must be used with EthernetDevice, but the make_device() function is the only place a custom UI can be specified, we need to move the common EthernetDevice to the recovery_ui core and make a new "default_ethernet_device" which looks like the other default device library stubs, for backwards compatibility. This makes it possible to use EthernetRecoveryUI on cuttlefish. Bug: 172693524 Change-Id: I6a66bb949ef97d06f532adb286d2db4c002d2924
117 lines
3.3 KiB
C++
117 lines
3.3 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include <android-base/strings.h>
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#include <android-base/unique_fd.h>
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#include <arpa/inet.h>
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#include <ifaddrs.h>
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#include <linux/if.h>
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#include <string.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include "recovery_ui/device.h"
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#include "recovery_ui/ethernet_device.h"
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#include "recovery_ui/ethernet_ui.h"
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const std::string EthernetDevice::interface = "eth0";
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EthernetDevice::EthernetDevice(EthernetRecoveryUI* ui)
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: Device(ui), ctl_sock_(socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0)) {
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if (ctl_sock_ < 0) {
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PLOG(ERROR) << "Failed to open socket";
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}
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}
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void EthernetDevice::PreRecovery() {
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SetInterfaceFlags(0, IFF_UP);
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SetTitleIPv6LinkLocalAddress(false);
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}
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void EthernetDevice::PreFastboot() {
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android::base::SetProperty("fastbootd.protocol", "tcp");
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if (SetInterfaceFlags(IFF_UP, 0) < 0) {
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LOG(ERROR) << "Failed to bring up interface";
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return;
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}
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SetTitleIPv6LinkLocalAddress(true);
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}
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int EthernetDevice::SetInterfaceFlags(const unsigned set, const unsigned clr) {
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struct ifreq ifr;
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if (ctl_sock_ < 0) {
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return -1;
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}
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memset(&ifr, 0, sizeof(struct ifreq));
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strncpy(ifr.ifr_name, interface.c_str(), IFNAMSIZ);
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ifr.ifr_name[IFNAMSIZ - 1] = 0;
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if (ioctl(ctl_sock_, SIOCGIFFLAGS, &ifr) < 0) {
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PLOG(ERROR) << "Failed to get interface active flags";
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return -1;
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}
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ifr.ifr_flags = (ifr.ifr_flags & (~clr)) | set;
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if (ioctl(ctl_sock_, SIOCSIFFLAGS, &ifr) < 0) {
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PLOG(ERROR) << "Failed to set interface active flags";
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return -1;
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}
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return 0;
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}
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void EthernetDevice::SetTitleIPv6LinkLocalAddress(const bool interface_up) {
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auto recovery_ui = reinterpret_cast<EthernetRecoveryUI*>(GetUI());
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if (!interface_up) {
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recovery_ui->SetIPv6LinkLocalAddress();
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return;
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}
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struct ifaddrs* ifaddr;
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if (getifaddrs(&ifaddr) == -1) {
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PLOG(ERROR) << "Failed to get interface addresses";
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recovery_ui->SetIPv6LinkLocalAddress();
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return;
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}
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std::unique_ptr<struct ifaddrs, decltype(&freeifaddrs)> guard{ ifaddr, freeifaddrs };
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for (struct ifaddrs* ifa = ifaddr; ifa != nullptr; ifa = ifa->ifa_next) {
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if (ifa->ifa_addr->sa_family != AF_INET6 || interface != ifa->ifa_name) {
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continue;
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}
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auto current_addr = reinterpret_cast<struct sockaddr_in6*>(ifa->ifa_addr);
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if (!IN6_IS_ADDR_LINKLOCAL(&(current_addr->sin6_addr))) {
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continue;
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}
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char addrstr[INET6_ADDRSTRLEN];
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inet_ntop(AF_INET6, reinterpret_cast<const void*>(¤t_addr->sin6_addr), addrstr,
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INET6_ADDRSTRLEN);
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LOG(INFO) << "Our IPv6 link-local address is " << addrstr;
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recovery_ui->SetIPv6LinkLocalAddress(addrstr);
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return;
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}
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recovery_ui->SetIPv6LinkLocalAddress();
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}
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