summaryrefslogtreecommitdiffstats
path: root/netwerk/system/mac
diff options
context:
space:
mode:
Diffstat (limited to 'netwerk/system/mac')
-rw-r--r--netwerk/system/mac/moz.build14
-rw-r--r--netwerk/system/mac/nsNetworkLinkService.h80
-rw-r--r--netwerk/system/mac/nsNetworkLinkService.mm1065
3 files changed, 1159 insertions, 0 deletions
diff --git a/netwerk/system/mac/moz.build b/netwerk/system/mac/moz.build
new file mode 100644
index 0000000000..20e7d3d16f
--- /dev/null
+++ b/netwerk/system/mac/moz.build
@@ -0,0 +1,14 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+SOURCES += [
+ "nsNetworkLinkService.mm",
+]
+
+FINAL_LIBRARY = "xul"
+
+if CONFIG["CC_TYPE"] == "clang":
+ CXXFLAGS += ["-Wno-error=shadow"]
diff --git a/netwerk/system/mac/nsNetworkLinkService.h b/netwerk/system/mac/nsNetworkLinkService.h
new file mode 100644
index 0000000000..72522317d2
--- /dev/null
+++ b/netwerk/system/mac/nsNetworkLinkService.h
@@ -0,0 +1,80 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NSNETWORKLINKSERVICEMAC_H_
+#define NSNETWORKLINKSERVICEMAC_H_
+
+#include "nsINetworkLinkService.h"
+#include "nsIObserver.h"
+#include "nsITimer.h"
+#include "mozilla/Mutex.h"
+#include "mozilla/SHA1.h"
+
+#include <SystemConfiguration/SCNetworkReachability.h>
+#include <SystemConfiguration/SystemConfiguration.h>
+
+using prefix_and_netmask = std::pair<in6_addr, in6_addr>;
+
+class nsNetworkLinkService : public nsINetworkLinkService,
+ public nsIObserver,
+ public nsITimerCallback {
+ public:
+ NS_DECL_THREADSAFE_ISUPPORTS
+ NS_DECL_NSINETWORKLINKSERVICE
+ NS_DECL_NSIOBSERVER
+ NS_DECL_NSITIMERCALLBACK
+
+ nsNetworkLinkService();
+
+ nsresult Init();
+ nsresult Shutdown();
+
+ static void HashSortedPrefixesAndNetmasks(
+ std::vector<prefix_and_netmask> prefixAndNetmaskStore,
+ mozilla::SHA1Sum* sha1);
+
+ protected:
+ virtual ~nsNetworkLinkService();
+
+ private:
+ bool mLinkUp;
+ bool mStatusKnown;
+
+ SCNetworkReachabilityRef mReachability;
+ CFRunLoopRef mCFRunLoop;
+ CFRunLoopSourceRef mRunLoopSource;
+ SCDynamicStoreRef mStoreRef;
+
+ bool IPv4NetworkId(mozilla::SHA1Sum* sha1);
+ bool IPv6NetworkId(mozilla::SHA1Sum* sha1);
+
+ void UpdateReachability();
+ void OnIPConfigChanged();
+ void OnNetworkIdChanged();
+ void OnReachabilityChanged();
+ void NotifyObservers(const char* aTopic, const char* aData);
+ static void ReachabilityChanged(SCNetworkReachabilityRef target,
+ SCNetworkConnectionFlags flags, void* info);
+ static void NetworkConfigChanged(SCDynamicStoreRef store,
+ CFArrayRef changedKeys, void* info);
+ void calculateNetworkIdWithDelay(uint32_t aDelay);
+ void calculateNetworkIdInternal(void);
+ void DNSConfigChanged();
+ void GetDnsSuffixListInternal();
+ bool RoutingFromKernel(nsTArray<nsCString>& aHash);
+ bool RoutingTable(nsTArray<nsCString>& aHash);
+
+ mozilla::Mutex mMutex;
+ nsCString mNetworkId;
+ nsTArray<nsCString> mDNSSuffixList;
+
+ // The timer used to delay the calculation of network id since it takes some
+ // time to discover the gateway's MAC address.
+ nsCOMPtr<nsITimer> mNetworkIdTimer;
+
+ // IP address used to check the route for public traffic.
+ struct in_addr mRouteCheckIPv4;
+};
+
+#endif /* NSNETWORKLINKSERVICEMAC_H_ */
diff --git a/netwerk/system/mac/nsNetworkLinkService.mm b/netwerk/system/mac/nsNetworkLinkService.mm
new file mode 100644
index 0000000000..f4d7205663
--- /dev/null
+++ b/netwerk/system/mac/nsNetworkLinkService.mm
@@ -0,0 +1,1065 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include <numeric>
+#include <vector>
+#include <algorithm>
+
+#include <sys/socket.h>
+#include <sys/sysctl.h>
+
+#include <net/if.h>
+#include <net/if_dl.h>
+#include <net/if_types.h>
+#include <net/route.h>
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+#include <arpa/inet.h>
+#include <ifaddrs.h>
+
+#include "nsCOMPtr.h"
+#include "nsIObserverService.h"
+#include "nsServiceManagerUtils.h"
+#include "nsString.h"
+#include "nsCRT.h"
+#include "nsNetCID.h"
+#include "nsThreadUtils.h"
+#include "mozilla/Logging.h"
+#include "mozilla/StaticPrefs_network.h"
+#include "mozilla/SHA1.h"
+#include "mozilla/Base64.h"
+#include "mozilla/ScopeExit.h"
+#include "mozilla/Services.h"
+#include "mozilla/Telemetry.h"
+#include "nsNetworkLinkService.h"
+#include "../../base/IPv6Utils.h"
+#include "../NetworkLinkServiceDefines.h"
+
+#import <Cocoa/Cocoa.h>
+#import <netinet/in.h>
+
+#define NETWORK_NOTIFY_CHANGED_PREF "network.notify.changed"
+
+using namespace mozilla;
+
+static LazyLogModule gNotifyAddrLog("nsNotifyAddr");
+#define LOG(args) MOZ_LOG(gNotifyAddrLog, mozilla::LogLevel::Debug, args)
+
+// See bug 1584165. Sometimes the ARP table is empty or doesn't have
+// the entry of gateway after the network change, so we'd like to delay
+// the calaulation of network id.
+static const uint32_t kNetworkIdDelayAfterChange = 3000;
+
+// If non-successful, extract the error code and return it. This
+// error code dance is inspired by
+// http://developer.apple.com/technotes/tn/tn1145.html
+static OSStatus getErrorCodeBool(Boolean success) {
+ OSStatus err = noErr;
+ if (!success) {
+ int scErr = ::SCError();
+ if (scErr == kSCStatusOK) {
+ scErr = kSCStatusFailed;
+ }
+ err = scErr;
+ }
+ return err;
+}
+
+// If given a NULL pointer, return the error code.
+static OSStatus getErrorCodePtr(const void* value) { return getErrorCodeBool(value != nullptr); }
+
+// Convenience function to allow NULL input.
+static void CFReleaseSafe(CFTypeRef cf) {
+ if (cf) {
+ // "If cf is NULL, this will cause a runtime error and your
+ // application will crash." / Apple docs
+ ::CFRelease(cf);
+ }
+}
+
+NS_IMPL_ISUPPORTS(nsNetworkLinkService, nsINetworkLinkService, nsIObserver)
+
+nsNetworkLinkService::nsNetworkLinkService()
+ : mLinkUp(true),
+ mStatusKnown(false),
+ mReachability(nullptr),
+ mCFRunLoop(nullptr),
+ mRunLoopSource(nullptr),
+ mStoreRef(nullptr),
+ mMutex("nsNetworkLinkService::mMutex") {}
+
+nsNetworkLinkService::~nsNetworkLinkService() = default;
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetIsLinkUp(bool* aIsUp) {
+ *aIsUp = mLinkUp;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetLinkStatusKnown(bool* aIsUp) {
+ *aIsUp = mStatusKnown;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetLinkType(uint32_t* aLinkType) {
+ NS_ENSURE_ARG_POINTER(aLinkType);
+
+ // XXX This function has not yet been implemented for this platform
+ *aLinkType = nsINetworkLinkService::LINK_TYPE_UNKNOWN;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetNetworkID(nsACString& aNetworkID) {
+ MutexAutoLock lock(mMutex);
+ aNetworkID = mNetworkId;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetPlatformDNSIndications(uint32_t* aPlatformDNSIndications) {
+ return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+// Note that this function is copied from xpcom/io/nsLocalFileUnix.cpp.
+static nsresult CFStringReftoUTF8(CFStringRef aInStrRef, nsACString& aOutStr) {
+ // first see if the conversion would succeed and find the length of the result
+ CFIndex usedBufLen, inStrLen = ::CFStringGetLength(aInStrRef);
+ CFIndex charsConverted =
+ ::CFStringGetBytes(aInStrRef, CFRangeMake(0, inStrLen), kCFStringEncodingUTF8, 0, false,
+ nullptr, 0, &usedBufLen);
+ if (charsConverted == inStrLen) {
+ // all characters converted, do the actual conversion
+ aOutStr.SetLength(usedBufLen);
+ if (aOutStr.Length() != (unsigned int)usedBufLen) {
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ UInt8* buffer = (UInt8*)aOutStr.BeginWriting();
+ ::CFStringGetBytes(aInStrRef, CFRangeMake(0, inStrLen), kCFStringEncodingUTF8, 0, false, buffer,
+ usedBufLen, &usedBufLen);
+ return NS_OK;
+ }
+
+ return NS_ERROR_FAILURE;
+}
+
+static void GetDNSSearchDomains(const SCDynamicStoreRef aStoreRef, const CFStringRef aPattern,
+ nsTArray<nsCString>& aResult) {
+ CFDictionaryRef dnsDict = (CFDictionaryRef)SCDynamicStoreCopyValue(aStoreRef, aPattern);
+ if (dnsDict) {
+ CFTypeRef domains;
+ if (::CFDictionaryGetValueIfPresent(dnsDict, kSCPropNetDNSSearchDomains, &domains)) {
+ if (domains && ::CFGetTypeID(domains) == ::CFArrayGetTypeID()) {
+ int count = ::CFArrayGetCount(static_cast<CFArrayRef>(domains));
+ for (int i = 0; i < count; i++) {
+ CFTypeRef domain = ::CFArrayGetValueAtIndex(static_cast<CFArrayRef>(domains), i);
+ if (domain && ::CFGetTypeID(domain) == ::CFStringGetTypeID()) {
+ nsAutoCString domainStr;
+ if (NS_SUCCEEDED(CFStringReftoUTF8(static_cast<CFStringRef>(domain), domainStr))) {
+ LOG(("DNS search domain [%s]\n", domainStr.get()));
+ aResult.AppendElement(domainStr);
+ }
+ }
+ }
+ }
+ }
+ }
+ CFReleaseSafe(dnsDict);
+}
+
+static OSStatus GetPrimaryServiceInfo(const SCDynamicStoreRef aStoreRef, nsACString& aServiceName,
+ nsACString& aServiceId) {
+ OSStatus err = getErrorCodePtr(aStoreRef);
+ if (err != noErr) {
+ return err;
+ }
+
+ CFStringRef globalIPv4StateKey = ::SCDynamicStoreKeyCreateNetworkGlobalEntity(
+ nullptr, kSCDynamicStoreDomainState, kSCEntNetIPv4);
+ err = getErrorCodePtr(globalIPv4StateKey);
+
+ // Get the primary interface.
+ CFDictionaryRef primaryInterface = nullptr;
+ if (err == noErr) {
+ primaryInterface = (CFDictionaryRef)::SCDynamicStoreCopyValue(aStoreRef, globalIPv4StateKey);
+ err = getErrorCodePtr(primaryInterface);
+ }
+
+ CFTypeRef serviceId;
+ if (err == noErr && ::CFDictionaryGetValueIfPresent(
+ primaryInterface, kSCDynamicStorePropNetPrimaryService, &serviceId)) {
+ err = -1;
+ if (serviceId && ::CFGetTypeID(serviceId) == ::CFStringGetTypeID()) {
+ if (NS_SUCCEEDED(CFStringReftoUTF8(static_cast<CFStringRef>(serviceId), aServiceId))) {
+ err = noErr;
+ }
+ }
+ }
+
+ CFTypeRef serviceName;
+ if (err == noErr && ::CFDictionaryGetValueIfPresent(
+ primaryInterface, kSCDynamicStorePropNetPrimaryInterface, &serviceName)) {
+ err = -1;
+ if (serviceName && ::CFGetTypeID(serviceName) == ::CFStringGetTypeID()) {
+ if (NS_SUCCEEDED(CFStringReftoUTF8(static_cast<CFStringRef>(serviceName), aServiceName))) {
+ err = noErr;
+ }
+ }
+ }
+
+ CFReleaseSafe(globalIPv4StateKey);
+ CFReleaseSafe(primaryInterface);
+
+ if (err == noErr) {
+ return noErr;
+ }
+
+ return err;
+}
+
+static OSStatus IsInterfaceActive(const SCDynamicStoreRef aStoreRef, const char* aInterfaceName,
+ bool& aResult) {
+ aResult = false;
+
+ OSStatus err = getErrorCodePtr(aStoreRef);
+ if (err != noErr) {
+ return err;
+ }
+
+ CFStringRef serviceNameRef = nullptr;
+ if (err == noErr) {
+ serviceNameRef = CFStringCreateWithCString(nullptr, aInterfaceName, kCFStringEncodingUTF8);
+ err = getErrorCodePtr(serviceNameRef);
+ }
+
+ CFStringRef linkPattern = nullptr;
+ if (err == noErr) {
+ linkPattern = ::SCDynamicStoreKeyCreateNetworkInterfaceEntity(
+ nullptr, kSCDynamicStoreDomainState, serviceNameRef, kSCEntNetLink);
+ err = getErrorCodePtr(linkPattern);
+ }
+
+ CFDictionaryRef dict = nullptr;
+ if (err == noErr) {
+ dict = (CFDictionaryRef)SCDynamicStoreCopyValue(aStoreRef, linkPattern);
+ err = getErrorCodePtr(dict);
+ }
+
+ if (err == noErr) {
+ CFTypeRef activeRef;
+ err = -1;
+ if (::CFDictionaryGetValueIfPresent(dict, kSCPropNetLinkActive, &activeRef)) {
+ if (activeRef && ::CFGetTypeID(activeRef) == ::CFBooleanGetTypeID()) {
+ aResult = ::CFBooleanGetValue(static_cast<CFBooleanRef>(activeRef));
+ err = noErr;
+ }
+ }
+ }
+
+ CFReleaseSafe(dict);
+ CFReleaseSafe(linkPattern);
+ CFReleaseSafe(serviceNameRef);
+ return err;
+}
+
+void nsNetworkLinkService::GetDnsSuffixListInternal() {
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ RefPtr<nsNetworkLinkService> self = this;
+ auto sendNotification = mozilla::MakeScopeExit([self] {
+ NS_DispatchToMainThread(NS_NewRunnableFunction(
+ "nsNetworkLinkService::GetDnsSuffixListInternal",
+ [self]() { self->NotifyObservers(NS_DNS_SUFFIX_LIST_UPDATED_TOPIC, nullptr); }));
+ });
+
+ nsAutoCString primaryServiceName;
+ nsAutoCString primaryServiceId;
+ OSStatus err = GetPrimaryServiceInfo(mStoreRef, primaryServiceName, primaryServiceId);
+
+ bool active = false;
+ if (err == noErr) {
+ err = IsInterfaceActive(mStoreRef, primaryServiceName.get(), active);
+ LOG(("primaryServiceName:[%s] active=%d", primaryServiceName.get(), active));
+ }
+
+ if (err != noErr || !active) {
+ // Primary interface is not active. Clear the DNS suffix list.
+ MutexAutoLock lock(mMutex);
+ mDNSSuffixList.Clear();
+ return;
+ }
+
+ nsTArray<nsCString> result;
+
+ CFStringRef serviceIdRef =
+ CFStringCreateWithCString(nullptr, primaryServiceId.get(), kCFStringEncodingUTF8);
+ err = getErrorCodePtr(serviceIdRef);
+ if (err == noErr) {
+ CFStringRef dnsSetupPattern = ::SCDynamicStoreKeyCreateNetworkServiceEntity(
+ nullptr, kSCDynamicStoreDomainSetup, serviceIdRef, kSCEntNetDNS);
+ CFStringRef dnsStatePattern = ::SCDynamicStoreKeyCreateNetworkServiceEntity(
+ nullptr, kSCDynamicStoreDomainState, serviceIdRef, kSCEntNetDNS);
+ err = getErrorCodePtr(dnsSetupPattern);
+ if (err == noErr) {
+ err = getErrorCodePtr(dnsStatePattern);
+ if (err == noErr) {
+ GetDNSSearchDomains(mStoreRef, dnsSetupPattern, result);
+ GetDNSSearchDomains(mStoreRef, dnsStatePattern, result);
+ }
+ }
+ CFReleaseSafe(dnsStatePattern);
+ CFReleaseSafe(dnsSetupPattern);
+ }
+ CFReleaseSafe(serviceIdRef);
+
+ if (err == noErr) {
+ MutexAutoLock lock(mMutex);
+ mDNSSuffixList = std::move(result);
+ }
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::GetDnsSuffixList(nsTArray<nsCString>& aDnsSuffixList) {
+ aDnsSuffixList.Clear();
+
+ MutexAutoLock lock(mMutex);
+ aDnsSuffixList.AppendElements(mDNSSuffixList);
+ return NS_OK;
+}
+
+#ifndef SA_SIZE
+# define SA_SIZE(sa) \
+ ((!(sa) || ((struct sockaddr*)(sa))->sa_len == 0) \
+ ? sizeof(uint32_t) \
+ : 1 + ((((struct sockaddr*)(sa))->sa_len - 1) | (sizeof(uint32_t) - 1)))
+#endif
+
+static bool getMac(struct sockaddr_dl* sdl, char* buf, size_t bufsize) {
+ unsigned char* mac;
+ mac = (unsigned char*)LLADDR(sdl);
+
+ if (sdl->sdl_alen != 6) {
+ LOG(("networkid: unexpected MAC size %u", sdl->sdl_alen));
+ return false;
+ }
+
+ snprintf(buf, bufsize, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4],
+ mac[5]);
+ return true;
+}
+
+/* If the IP matches, get the MAC and return true */
+static bool matchIp(struct sockaddr_dl* sdl, struct sockaddr_inarp* addr, char* ip, char* buf,
+ size_t bufsize) {
+ if (sdl->sdl_alen) {
+ if (!strcmp(inet_ntoa(addr->sin_addr), ip)) {
+ if (getMac(sdl, buf, bufsize)) {
+ return true; /* done! */
+ }
+ }
+ }
+ return false; /* continue */
+}
+
+/*
+ * Scan for the 'IP' address in the ARP table and store the corresponding MAC
+ * address in 'mac'. The output buffer is 'maclen' bytes big.
+ *
+ * Returns 'true' if it found the IP and returns a MAC.
+ */
+static bool scanArp(char* ip, char* mac, size_t maclen) {
+ int mib[6];
+ char *lim, *next;
+ int st;
+
+ mib[0] = CTL_NET;
+ mib[1] = PF_ROUTE;
+ mib[2] = 0;
+ mib[3] = AF_INET;
+ mib[4] = NET_RT_FLAGS;
+ mib[5] = RTF_LLINFO;
+
+ size_t needed;
+ if (sysctl(mib, 6, nullptr, &needed, nullptr, 0) < 0) {
+ return false;
+ }
+ if (needed == 0) {
+ LOG(("scanArp: empty table"));
+ return false;
+ }
+
+ UniquePtr<char[]> buf(new char[needed]);
+
+ for (;;) {
+ st = sysctl(mib, 6, &buf[0], &needed, nullptr, 0);
+ if (st == 0 || errno != ENOMEM) {
+ break;
+ }
+ needed += needed / 8;
+
+ auto tmp = MakeUnique<char[]>(needed);
+ memcpy(&tmp[0], &buf[0], needed);
+ buf = std::move(tmp);
+ }
+ if (st == -1) {
+ return false;
+ }
+ lim = &buf[needed];
+
+ struct rt_msghdr* rtm;
+ for (next = &buf[0]; next < lim; next += rtm->rtm_msglen) {
+ rtm = reinterpret_cast<struct rt_msghdr*>(next);
+ struct sockaddr_inarp* sin2 = reinterpret_cast<struct sockaddr_inarp*>(rtm + 1);
+ struct sockaddr_dl* sdl = reinterpret_cast<struct sockaddr_dl*>((char*)sin2 + SA_SIZE(sin2));
+ if (matchIp(sdl, sin2, ip, mac, maclen)) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+// Append the mac address of rtm to `stringsToHash`. If it's not in arp table, append
+// ifname and IP address.
+static bool parseHashKey(struct rt_msghdr* rtm, nsTArray<nsCString>& stringsToHash,
+ bool skipDstCheck) {
+ struct sockaddr* sa;
+ struct sockaddr_in* sockin;
+ char ip[INET_ADDRSTRLEN];
+
+ // Ignore the routing table message without destination/gateway sockaddr.
+ // Destination address is needed to check if the gateway is default or
+ // overwritten by VPN. If yes, append the mac address or IP/interface name to
+ // `stringsToHash`.
+ if ((rtm->rtm_addrs & (RTA_DST | RTA_GATEWAY)) != (RTA_DST | RTA_GATEWAY)) {
+ return false;
+ }
+
+ sa = reinterpret_cast<struct sockaddr*>(rtm + 1);
+
+ struct sockaddr* destination =
+ reinterpret_cast<struct sockaddr*>((char*)sa + RTAX_DST * SA_SIZE(sa));
+ if (!destination || destination->sa_family != AF_INET) {
+ return false;
+ }
+
+ sockin = reinterpret_cast<struct sockaddr_in*>(destination);
+
+ inet_ntop(AF_INET, &sockin->sin_addr.s_addr, ip, sizeof(ip) - 1);
+
+ if (!skipDstCheck && strcmp("0.0.0.0", ip)) {
+ return false;
+ }
+
+ struct sockaddr* gateway =
+ reinterpret_cast<struct sockaddr*>((char*)sa + RTAX_GATEWAY * SA_SIZE(sa));
+
+ if (!gateway) {
+ return false;
+ }
+ if (gateway->sa_family == AF_INET) {
+ sockin = reinterpret_cast<struct sockaddr_in*>(gateway);
+ inet_ntop(AF_INET, &sockin->sin_addr.s_addr, ip, sizeof(ip) - 1);
+ char mac[18];
+
+ // TODO: cache the arp table instead of multiple system call.
+ if (scanArp(ip, mac, sizeof(mac))) {
+ stringsToHash.AppendElement(nsCString(mac));
+ } else {
+ // Can't find a real MAC address. This might be a VPN gateway.
+ char buf[IFNAMSIZ] = {0};
+ char* ifName = if_indextoname(rtm->rtm_index, buf);
+ if (!ifName) {
+ LOG(("parseHashKey: AF_INET if_indextoname failed"));
+ return false;
+ }
+
+ stringsToHash.AppendElement(nsCString(ifName));
+ stringsToHash.AppendElement(nsCString(ip));
+ }
+ } else if (gateway->sa_family == AF_LINK) {
+ char buf[64];
+ struct sockaddr_dl* sockdl = reinterpret_cast<struct sockaddr_dl*>(gateway);
+ if (getMac(sockdl, buf, sizeof(buf))) {
+ stringsToHash.AppendElement(nsCString(buf));
+ } else {
+ char buf[IFNAMSIZ] = {0};
+ char* ifName = if_indextoname(rtm->rtm_index, buf);
+ if (!ifName) {
+ LOG(("parseHashKey: AF_LINK if_indextoname failed"));
+ return false;
+ }
+
+ stringsToHash.AppendElement(nsCString(ifName));
+ }
+ }
+ return true;
+}
+
+// It detects the IP of the default gateways in the routing table, then the MAC
+// address of that IP in the ARP table before it hashes that string (to avoid
+// information leakage).
+bool nsNetworkLinkService::RoutingTable(nsTArray<nsCString>& aHash) {
+ size_t needed;
+ int mib[6];
+ struct rt_msghdr* rtm;
+
+ mib[0] = CTL_NET;
+ mib[1] = PF_ROUTE;
+ mib[2] = 0;
+ mib[3] = 0;
+ mib[4] = NET_RT_DUMP;
+ mib[5] = 0;
+
+ if (sysctl(mib, 6, nullptr, &needed, nullptr, 0) < 0) {
+ return false;
+ }
+
+ UniquePtr<char[]> buf(new char[needed]);
+
+ if (sysctl(mib, 6, &buf[0], &needed, nullptr, 0) < 0) {
+ return false;
+ }
+
+ char* lim = &buf[0] + needed;
+ bool rv = false;
+
+ // `next + 1 < lim` ensures we have valid `rtm->rtm_msglen` which is an
+ // unsigned short at the beginning of `rt_msghdr`.
+ for (char* next = &buf[0]; next + 1 < lim; next += rtm->rtm_msglen) {
+ rtm = reinterpret_cast<struct rt_msghdr*>(next);
+
+ if (next + rtm->rtm_msglen > lim) {
+ LOG(("Rt msg is truncated..."));
+ break;
+ }
+
+ if (parseHashKey(rtm, aHash, false)) {
+ rv = true;
+ }
+ }
+ return rv;
+}
+
+// Detect the routing of network.netlink.route.check.IPv4
+bool nsNetworkLinkService::RoutingFromKernel(nsTArray<nsCString>& aHash) {
+ int sockfd;
+ if ((sockfd = socket(AF_ROUTE, SOCK_RAW, 0)) == -1) {
+ LOG(("RoutingFromKernel: Can create a socket for network id"));
+ return false;
+ }
+
+ MOZ_ASSERT(!NS_IsMainThread());
+
+ size_t needed = 1024;
+ struct rt_msghdr* rtm;
+ struct sockaddr_in* sin;
+ UniquePtr<char[]> buf(new char[needed]);
+ pid_t pid;
+ int seq;
+
+ rtm = reinterpret_cast<struct rt_msghdr*>(&buf[0]);
+ memset(rtm, 0, sizeof(struct rt_msghdr));
+ rtm->rtm_msglen = sizeof(struct rt_msghdr) + sizeof(struct sockaddr_in);
+ rtm->rtm_version = RTM_VERSION;
+ rtm->rtm_type = RTM_GET;
+ rtm->rtm_addrs = RTA_DST;
+ rtm->rtm_pid = (pid = getpid());
+ rtm->rtm_seq = (seq = random());
+
+ sin = reinterpret_cast<struct sockaddr_in*>(rtm + 1);
+ memset(sin, 0, sizeof(struct sockaddr_in));
+ sin->sin_len = sizeof(struct sockaddr_in);
+ sin->sin_family = AF_INET;
+ sin->sin_addr = mRouteCheckIPv4;
+
+ if (write(sockfd, rtm, rtm->rtm_msglen) == -1) {
+ LOG(("RoutingFromKernel: write() failed. No route to the predefine destincation"));
+ return false;
+ }
+
+ do {
+ ssize_t r;
+ if ((r = read(sockfd, rtm, needed)) < 0) {
+ LOG(("RoutingFromKernel: read() failed."));
+ return false;
+ }
+
+ LOG(("RoutingFromKernel: read() rtm_type: %d (%d), rtm_pid: %d (%d), rtm_seq: %d (%d)\n",
+ rtm->rtm_type, RTM_GET, rtm->rtm_pid, pid, rtm->rtm_seq, seq));
+ } while (rtm->rtm_type != RTM_GET || rtm->rtm_pid != pid || rtm->rtm_seq != seq);
+
+ return parseHashKey(rtm, aHash, true);
+}
+
+// Figure out the current IPv4 "network identification" string.
+bool nsNetworkLinkService::IPv4NetworkId(SHA1Sum* aSHA1) {
+ nsTArray<nsCString> hash;
+ if (!RoutingTable(hash)) {
+ NS_WARNING("IPv4NetworkId: No default gateways");
+ }
+
+ if (!RoutingFromKernel(hash)) {
+ NS_WARNING("IPv4NetworkId: No route to the predefined destination");
+ }
+
+ // We didn't get any valid hash key to generate network ID.
+ if (hash.IsEmpty()) {
+ LOG(("IPv4NetworkId: No valid hash key"));
+ return false;
+ }
+
+ hash.Sort();
+ for (uint32_t i = 0; i < hash.Length(); ++i) {
+ LOG(("IPv4NetworkId: Hashing string for network id: %s", hash[i].get()));
+ aSHA1->update(hash[i].get(), hash[i].Length());
+ }
+
+ return true;
+}
+
+//
+// Sort and hash the prefixes and netmasks
+//
+void nsNetworkLinkService::HashSortedPrefixesAndNetmasks(
+ std::vector<prefix_and_netmask> prefixAndNetmaskStore, SHA1Sum* sha1) {
+ // getifaddrs does not guarantee the interfaces will always be in the same order.
+ // We want to make sure the hash remains consistent Regardless of the interface order.
+ std::sort(prefixAndNetmaskStore.begin(), prefixAndNetmaskStore.end(),
+ [](prefix_and_netmask a, prefix_and_netmask b) {
+ // compare prefixStore
+ int comparedPrefix = memcmp(&a.first, &b.first, sizeof(in6_addr));
+ if (comparedPrefix == 0) {
+ // compare netmaskStore
+ return memcmp(&a.second, &b.second, sizeof(in6_addr)) < 0;
+ }
+ return comparedPrefix < 0;
+ });
+
+ for (const auto& prefixAndNetmask : prefixAndNetmaskStore) {
+ sha1->update(&prefixAndNetmask.first, sizeof(in6_addr));
+ sha1->update(&prefixAndNetmask.second, sizeof(in6_addr));
+ }
+}
+
+bool nsNetworkLinkService::IPv6NetworkId(SHA1Sum* sha1) {
+ struct ifaddrs* ifap;
+ std::vector<prefix_and_netmask> prefixAndNetmaskStore;
+
+ if (!getifaddrs(&ifap)) {
+ struct ifaddrs* ifa;
+ for (ifa = ifap; ifa; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr == NULL) {
+ continue;
+ }
+ if ((AF_INET6 == ifa->ifa_addr->sa_family) &&
+ !(ifa->ifa_flags & (IFF_POINTOPOINT | IFF_LOOPBACK))) {
+ // only IPv6 interfaces that aren't pointtopoint or loopback
+ struct sockaddr_in6* sin_netmask = (struct sockaddr_in6*)ifa->ifa_netmask;
+ if (sin_netmask) {
+ struct sockaddr_in6* sin_addr = (struct sockaddr_in6*)ifa->ifa_addr;
+ int scope = net::utils::ipv6_scope(sin_addr->sin6_addr.s6_addr);
+ if (scope == IPV6_SCOPE_GLOBAL) {
+ struct in6_addr prefix;
+ memset(&prefix, 0, sizeof(prefix));
+ // Get the prefix by combining the address and netmask.
+ for (size_t i = 0; i < sizeof(prefix); ++i) {
+ prefix.s6_addr[i] =
+ sin_addr->sin6_addr.s6_addr[i] & sin_netmask->sin6_addr.s6_addr[i];
+ }
+
+ // check if prefix and netmask was already found
+ auto prefixAndNetmask = std::make_pair(prefix, sin_netmask->sin6_addr);
+ auto foundPosition = std::find_if(
+ prefixAndNetmaskStore.begin(), prefixAndNetmaskStore.end(),
+ [&prefixAndNetmask](prefix_and_netmask current) {
+ return memcmp(&prefixAndNetmask.first, &current.first, sizeof(in6_addr)) == 0 &&
+ memcmp(&prefixAndNetmask.second, &current.second, sizeof(in6_addr)) == 0;
+ });
+ if (foundPosition != prefixAndNetmaskStore.end()) {
+ continue;
+ }
+ prefixAndNetmaskStore.push_back(prefixAndNetmask);
+ }
+ }
+ }
+ }
+ freeifaddrs(ifap);
+ }
+ if (prefixAndNetmaskStore.empty()) {
+ LOG(("IPv6NetworkId failed"));
+ return false;
+ }
+
+ nsNetworkLinkService::HashSortedPrefixesAndNetmasks(prefixAndNetmaskStore, sha1);
+
+ return true;
+}
+
+void nsNetworkLinkService::calculateNetworkIdWithDelay(uint32_t aDelay) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (aDelay) {
+ if (mNetworkIdTimer) {
+ LOG(("Restart the network id timer."));
+ mNetworkIdTimer->Cancel();
+ } else {
+ LOG(("Create the network id timer."));
+ mNetworkIdTimer = NS_NewTimer();
+ }
+ mNetworkIdTimer->InitWithCallback(this, aDelay, nsITimer::TYPE_ONE_SHOT);
+ return;
+ }
+
+ nsCOMPtr<nsIEventTarget> target = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
+ if (!target) {
+ return;
+ }
+
+ MOZ_ALWAYS_SUCCEEDS(
+ target->Dispatch(NewRunnableMethod("nsNetworkLinkService::calculateNetworkIdInternal", this,
+ &nsNetworkLinkService::calculateNetworkIdInternal),
+ NS_DISPATCH_NORMAL));
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::Notify(nsITimer* aTimer) {
+ MOZ_ASSERT(aTimer == mNetworkIdTimer);
+
+ mNetworkIdTimer = nullptr;
+ calculateNetworkIdWithDelay(0);
+ return NS_OK;
+}
+
+void nsNetworkLinkService::calculateNetworkIdInternal(void) {
+ MOZ_ASSERT(!NS_IsMainThread(), "Should not be called on the main thread");
+ SHA1Sum sha1;
+ bool idChanged = false;
+ bool found4 = IPv4NetworkId(&sha1);
+ bool found6 = IPv6NetworkId(&sha1);
+
+ if (found4 || found6) {
+ // This 'addition' could potentially be a fixed number from the
+ // profile or something.
+ nsAutoCString addition("local-rubbish");
+ nsAutoCString output;
+ sha1.update(addition.get(), addition.Length());
+ uint8_t digest[SHA1Sum::kHashSize];
+ sha1.finish(digest);
+ nsAutoCString newString(reinterpret_cast<char*>(digest), SHA1Sum::kHashSize);
+ nsresult rv = Base64Encode(newString, output);
+ MOZ_RELEASE_ASSERT(NS_SUCCEEDED(rv));
+ LOG(("networkid: id %s\n", output.get()));
+ MutexAutoLock lock(mMutex);
+ if (mNetworkId != output) {
+ // new id
+ if (found4 && !found6) {
+ Telemetry::Accumulate(Telemetry::NETWORK_ID2, 1); // IPv4 only
+ } else if (!found4 && found6) {
+ Telemetry::Accumulate(Telemetry::NETWORK_ID2, 3); // IPv6 only
+ } else {
+ Telemetry::Accumulate(Telemetry::NETWORK_ID2, 4); // Both!
+ }
+ mNetworkId = output;
+ idChanged = true;
+ } else {
+ // same id
+ LOG(("Same network id"));
+ Telemetry::Accumulate(Telemetry::NETWORK_ID2, 2);
+ }
+ } else {
+ // no id
+ LOG(("No network id"));
+ MutexAutoLock lock(mMutex);
+ if (!mNetworkId.IsEmpty()) {
+ mNetworkId.Truncate();
+ idChanged = true;
+ Telemetry::Accumulate(Telemetry::NETWORK_ID2, 0);
+ }
+ }
+
+ // Don't report network change if this is the first time we calculate the id.
+ static bool initialIDCalculation = true;
+ if (idChanged && !initialIDCalculation) {
+ RefPtr<nsNetworkLinkService> self = this;
+
+ NS_DispatchToMainThread(
+ NS_NewRunnableFunction("nsNetworkLinkService::calculateNetworkIdInternal",
+ [self]() { self->OnNetworkIdChanged(); }));
+ }
+
+ initialIDCalculation = false;
+}
+
+NS_IMETHODIMP
+nsNetworkLinkService::Observe(nsISupports* subject, const char* topic, const char16_t* data) {
+ if (!strcmp(topic, "xpcom-shutdown")) {
+ Shutdown();
+ }
+
+ return NS_OK;
+}
+
+/* static */
+void nsNetworkLinkService::NetworkConfigChanged(SCDynamicStoreRef aStoreREf,
+ CFArrayRef aChangedKeys, void* aInfo) {
+ LOG(("nsNetworkLinkService::NetworkConfigChanged"));
+
+ bool ipConfigChanged = false;
+ bool dnsConfigChanged = false;
+ for (CFIndex i = 0; i < CFArrayGetCount(aChangedKeys); ++i) {
+ CFStringRef key = static_cast<CFStringRef>(CFArrayGetValueAtIndex(aChangedKeys, i));
+ if (CFStringHasSuffix(key, kSCEntNetIPv4) || CFStringHasSuffix(key, kSCEntNetIPv6)) {
+ ipConfigChanged = true;
+ }
+ if (CFStringHasSuffix(key, kSCEntNetDNS)) {
+ dnsConfigChanged = true;
+ }
+ }
+
+ nsNetworkLinkService* service = static_cast<nsNetworkLinkService*>(aInfo);
+ if (ipConfigChanged) {
+ service->OnIPConfigChanged();
+ }
+
+ if (dnsConfigChanged) {
+ service->DNSConfigChanged();
+ }
+}
+
+void nsNetworkLinkService::DNSConfigChanged() {
+ LOG(("nsNetworkLinkService::DNSConfigChanged"));
+ nsCOMPtr<nsIEventTarget> target = do_GetService(NS_STREAMTRANSPORTSERVICE_CONTRACTID);
+ if (target) {
+ RefPtr<nsNetworkLinkService> self = this;
+ MOZ_ALWAYS_SUCCEEDS(
+ target->Dispatch(NS_NewRunnableFunction("nsNetworkLinkService::GetDnsSuffixListInternal",
+ [self]() { self->GetDnsSuffixListInternal(); })));
+ }
+}
+
+nsresult nsNetworkLinkService::Init(void) {
+ nsresult rv;
+
+ nsCOMPtr<nsIObserverService> observerService =
+ do_GetService("@mozilla.org/observer-service;1", &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = observerService->AddObserver(this, "xpcom-shutdown", false);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (inet_pton(AF_INET, ROUTE_CHECK_IPV4, &mRouteCheckIPv4) != 1) {
+ LOG(("Cannot parse address " ROUTE_CHECK_IPV4));
+ MOZ_DIAGNOSTIC_ASSERT(false, "Cannot parse address " ROUTE_CHECK_IPV4);
+ return NS_ERROR_UNEXPECTED;
+ }
+
+ // If the network reachability API can reach 0.0.0.0 without
+ // requiring a connection, there is a network interface available.
+ struct sockaddr_in addr;
+ bzero(&addr, sizeof(addr));
+ addr.sin_len = sizeof(addr);
+ addr.sin_family = AF_INET;
+ mReachability = ::SCNetworkReachabilityCreateWithAddress(nullptr, (struct sockaddr*)&addr);
+ if (!mReachability) {
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ SCNetworkReachabilityContext context = {0, this, nullptr, nullptr, nullptr};
+ if (!::SCNetworkReachabilitySetCallback(mReachability, ReachabilityChanged, &context)) {
+ NS_WARNING("SCNetworkReachabilitySetCallback failed.");
+ ::CFRelease(mReachability);
+ mReachability = nullptr;
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ SCDynamicStoreContext storeContext = {0, this, nullptr, nullptr, nullptr};
+ mStoreRef = ::SCDynamicStoreCreate(nullptr, CFSTR("IPAndDNSChangeCallbackSCF"),
+ NetworkConfigChanged, &storeContext);
+
+ CFStringRef patterns[4] = {nullptr, nullptr, nullptr, nullptr};
+ OSStatus err = getErrorCodePtr(mStoreRef);
+ if (err == noErr) {
+ // This pattern is "State:/Network/Service/[^/]+/IPv4".
+ patterns[0] = ::SCDynamicStoreKeyCreateNetworkServiceEntity(nullptr, kSCDynamicStoreDomainState,
+ kSCCompAnyRegex, kSCEntNetIPv4);
+ // This pattern is "State:/Network/Service/[^/]+/IPv6".
+ patterns[1] = ::SCDynamicStoreKeyCreateNetworkServiceEntity(nullptr, kSCDynamicStoreDomainState,
+ kSCCompAnyRegex, kSCEntNetIPv6);
+ // This pattern is "State:/Network/Service/[^/]+/DNS".
+ patterns[2] = ::SCDynamicStoreKeyCreateNetworkServiceEntity(nullptr, kSCDynamicStoreDomainState,
+ kSCCompAnyRegex, kSCEntNetDNS);
+ // This pattern is "Setup:/Network/Service/[^/]+/DNS".
+ patterns[3] = ::SCDynamicStoreKeyCreateNetworkServiceEntity(nullptr, kSCDynamicStoreDomainSetup,
+ kSCCompAnyRegex, kSCEntNetDNS);
+ if (!patterns[0] || !patterns[1] || !patterns[2] || !patterns[3]) {
+ err = -1;
+ }
+ }
+
+ CFArrayRef patternList = nullptr;
+ // Create a pattern list containing just one pattern,
+ // then tell SCF that we want to watch changes in keys
+ // that match that pattern list, then create our run loop
+ // source.
+ if (err == noErr) {
+ patternList = ::CFArrayCreate(nullptr, (const void**)patterns, 4, &kCFTypeArrayCallBacks);
+ if (!patternList) {
+ err = -1;
+ }
+ }
+ if (err == noErr) {
+ err = getErrorCodeBool(::SCDynamicStoreSetNotificationKeys(mStoreRef, nullptr, patternList));
+ }
+
+ if (err == noErr) {
+ mRunLoopSource = ::SCDynamicStoreCreateRunLoopSource(nullptr, mStoreRef, 0);
+ err = getErrorCodePtr(mRunLoopSource);
+ }
+
+ CFReleaseSafe(patterns[0]);
+ CFReleaseSafe(patterns[1]);
+ CFReleaseSafe(patterns[2]);
+ CFReleaseSafe(patterns[3]);
+ CFReleaseSafe(patternList);
+
+ if (err != noErr) {
+ CFReleaseSafe(mStoreRef);
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+
+ // Get the current run loop. This service is initialized at startup,
+ // so we shouldn't run in to any problems with modal dialog run loops.
+ mCFRunLoop = [[NSRunLoop currentRunLoop] getCFRunLoop];
+ if (!mCFRunLoop) {
+ NS_WARNING("Could not get current run loop.");
+ ::CFRelease(mReachability);
+ mReachability = nullptr;
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+ ::CFRetain(mCFRunLoop);
+
+ ::CFRunLoopAddSource(mCFRunLoop, mRunLoopSource, kCFRunLoopDefaultMode);
+
+ if (!::SCNetworkReachabilityScheduleWithRunLoop(mReachability, mCFRunLoop,
+ kCFRunLoopDefaultMode)) {
+ NS_WARNING("SCNetworkReachabilityScheduleWIthRunLoop failed.");
+ ::CFRelease(mReachability);
+ mReachability = nullptr;
+ ::CFRelease(mCFRunLoop);
+ mCFRunLoop = nullptr;
+ return NS_ERROR_NOT_AVAILABLE;
+ }
+ UpdateReachability();
+
+ calculateNetworkIdWithDelay(0);
+
+ DNSConfigChanged();
+
+ return NS_OK;
+}
+
+nsresult nsNetworkLinkService::Shutdown() {
+ if (!::SCNetworkReachabilityUnscheduleFromRunLoop(mReachability, mCFRunLoop,
+ kCFRunLoopDefaultMode)) {
+ NS_WARNING("SCNetworkReachabilityUnscheduleFromRunLoop failed.");
+ }
+
+ CFRunLoopRemoveSource(mCFRunLoop, mRunLoopSource, kCFRunLoopDefaultMode);
+
+ ::CFRelease(mReachability);
+ mReachability = nullptr;
+
+ ::CFRelease(mCFRunLoop);
+ mCFRunLoop = nullptr;
+
+ ::CFRelease(mStoreRef);
+ mStoreRef = nullptr;
+
+ ::CFRelease(mRunLoopSource);
+ mRunLoopSource = nullptr;
+
+ if (mNetworkIdTimer) {
+ mNetworkIdTimer->Cancel();
+ mNetworkIdTimer = nullptr;
+ }
+
+ return NS_OK;
+}
+
+void nsNetworkLinkService::UpdateReachability() {
+ if (!mReachability) {
+ return;
+ }
+
+ SCNetworkConnectionFlags flags;
+ if (!::SCNetworkReachabilityGetFlags(mReachability, &flags)) {
+ mStatusKnown = false;
+ return;
+ }
+
+ bool reachable = (flags & kSCNetworkFlagsReachable) != 0;
+ bool needsConnection = (flags & kSCNetworkFlagsConnectionRequired) != 0;
+
+ mLinkUp = (reachable && !needsConnection);
+ mStatusKnown = true;
+}
+
+void nsNetworkLinkService::OnIPConfigChanged() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ calculateNetworkIdWithDelay(kNetworkIdDelayAfterChange);
+ if (!StaticPrefs::network_notify_changed()) {
+ return;
+ }
+
+ NotifyObservers(NS_NETWORK_LINK_TOPIC, NS_NETWORK_LINK_DATA_CHANGED);
+}
+
+void nsNetworkLinkService::OnNetworkIdChanged() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ NotifyObservers(NS_NETWORK_ID_CHANGED_TOPIC, nullptr);
+}
+
+void nsNetworkLinkService::OnReachabilityChanged() {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ if (!mStatusKnown) {
+ NotifyObservers(NS_NETWORK_LINK_TOPIC, NS_NETWORK_LINK_DATA_UNKNOWN);
+ return;
+ }
+
+ NotifyObservers(NS_NETWORK_LINK_TOPIC,
+ mLinkUp ? NS_NETWORK_LINK_DATA_UP : NS_NETWORK_LINK_DATA_DOWN);
+}
+
+void nsNetworkLinkService::NotifyObservers(const char* aTopic, const char* aData) {
+ MOZ_ASSERT(NS_IsMainThread());
+
+ LOG(("nsNetworkLinkService::NotifyObservers: topic:%s data:%s\n", aTopic, aData ? aData : ""));
+
+ nsCOMPtr<nsIObserverService> observerService = mozilla::services::GetObserverService();
+
+ if (observerService) {
+ observerService->NotifyObservers(static_cast<nsINetworkLinkService*>(this), aTopic,
+ aData ? NS_ConvertASCIItoUTF16(aData).get() : nullptr);
+ }
+}
+
+/* static */
+void nsNetworkLinkService::ReachabilityChanged(SCNetworkReachabilityRef target,
+ SCNetworkConnectionFlags flags, void* info) {
+ LOG(("nsNetworkLinkService::ReachabilityChanged"));
+ nsNetworkLinkService* service = static_cast<nsNetworkLinkService*>(info);
+
+ service->UpdateReachability();
+ service->OnReachabilityChanged();
+ service->calculateNetworkIdWithDelay(kNetworkIdDelayAfterChange);
+ // If a new interface is up or the order of interfaces is changed, we should
+ // update the DNS suffix list.
+ service->DNSConfigChanged();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 13:58:19 +0000