1d18304287dbabc7835be771400b85d4ae8b63de6San Mehat/* 2d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * Copyright (C) 2008 The Android Open Source Project 3d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * 4d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * you may not use this file except in compliance with the License. 6d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * You may obtain a copy of the License at 7d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * 8d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * 10d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * Unless required by applicable law or agreed to in writing, software 11d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * See the License for the specific language governing permissions and 14d18304287dbabc7835be771400b85d4ae8b63de6San Mehat * limitations under the License. 15d18304287dbabc7835be771400b85d4ae8b63de6San Mehat */ 16d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 170b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti#include <stdarg.h> 18d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include <stdio.h> 19d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include <stdlib.h> 20ff2c0d8c13457e43f0d4bf06d3177271aac104c1Olivier Bailly#include <string.h> 21d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include <errno.h> 22d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 23d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#define LOG_TAG "Netd" 24d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 25d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include <cutils/log.h> 26d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 27af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran#include <netutils/ifc.h> 28d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include <sysutils/NetlinkEvent.h> 29d18304287dbabc7835be771400b85d4ae8b63de6San Mehat#include "NetlinkHandler.h" 3067c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt#include "NetlinkManager.h" 3167c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt#include "ResponseCode.h" 32d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 33bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colittistatic const char *kUpdated = "updated"; 34bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colittistatic const char *kRemoved = "removed"; 35bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti 36564df4efc87f3d04c3570836d38134fd949c4cafMike J. ChenNetlinkHandler::NetlinkHandler(NetlinkManager *nm, int listenerSocket, 37564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen int format) : 38564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen NetlinkListener(listenerSocket, format) { 3967c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt mNm = nm; 40d18304287dbabc7835be771400b85d4ae8b63de6San Mehat} 41d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 42d18304287dbabc7835be771400b85d4ae8b63de6San MehatNetlinkHandler::~NetlinkHandler() { 43d18304287dbabc7835be771400b85d4ae8b63de6San Mehat} 44d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 45d18304287dbabc7835be771400b85d4ae8b63de6San Mehatint NetlinkHandler::start() { 46d18304287dbabc7835be771400b85d4ae8b63de6San Mehat return this->startListener(); 47d18304287dbabc7835be771400b85d4ae8b63de6San Mehat} 48d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 49d18304287dbabc7835be771400b85d4ae8b63de6San Mehatint NetlinkHandler::stop() { 50d18304287dbabc7835be771400b85d4ae8b63de6San Mehat return this->stopListener(); 51d18304287dbabc7835be771400b85d4ae8b63de6San Mehat} 52d18304287dbabc7835be771400b85d4ae8b63de6San Mehat 53d18304287dbabc7835be771400b85d4ae8b63de6San Mehatvoid NetlinkHandler::onEvent(NetlinkEvent *evt) { 54d18304287dbabc7835be771400b85d4ae8b63de6San Mehat const char *subsys = evt->getSubsystem(); 55d18304287dbabc7835be771400b85d4ae8b63de6San Mehat if (!subsys) { 560e76b761a1514d5182675dd7b7d33725f62d6bc5Steve Block ALOGW("No subsystem found in netlink event"); 57d18304287dbabc7835be771400b85d4ae8b63de6San Mehat return; 58d18304287dbabc7835be771400b85d4ae8b63de6San Mehat } 59564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen 604da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti if (!strcmp(subsys, "net")) { 6167c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt int action = evt->getAction(); 62564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen const char *iface = evt->findParam("INTERFACE"); 63564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen 6467c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt if (action == evt->NlActionAdd) { 6567c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt notifyInterfaceAdded(iface); 6667c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt } else if (action == evt->NlActionRemove) { 6767c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt notifyInterfaceRemoved(iface); 6867c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt } else if (action == evt->NlActionChange) { 6967c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt evt->dump(); 7067c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt notifyInterfaceChanged("nana", true); 71564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen } else if (action == evt->NlActionLinkUp) { 72564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen notifyInterfaceLinkChanged(iface, true); 73564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen } else if (action == evt->NlActionLinkDown) { 74564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen notifyInterfaceLinkChanged(iface, false); 754da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti } else if (action == evt->NlActionAddressUpdated || 764da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti action == evt->NlActionAddressRemoved) { 774da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti const char *address = evt->findParam("ADDRESS"); 784da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti const char *flags = evt->findParam("FLAGS"); 794da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti const char *scope = evt->findParam("SCOPE"); 80af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran if (action == evt->NlActionAddressRemoved && iface && address) { 81af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran int resetMask = strchr(address, ':') ? RESET_IPV6_ADDRESSES : RESET_IPV4_ADDRESSES; 82af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran resetMask |= RESET_IGNORE_INTERFACE_ADDRESS; 83af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran if (int ret = ifc_reset_connections(iface, resetMask)) { 84af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran ALOGE("ifc_reset_connections failed on iface %s for address %s (%s)", iface, 85af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran address, strerror(ret)); 86af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran } 87af37dd3e6f40b9fc5a30ec462a8d2504380a3c9fSreeram Ramachandran } 884da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti if (iface && flags && scope) { 894da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti notifyAddressChanged(action, address, iface, flags, scope); 904da12db25b4a2947b1a98b0322e4be56a30c5e17Lorenzo Colitti } 9112acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti } else if (action == evt->NlActionRdnss) { 9212acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti const char *lifetime = evt->findParam("LIFETIME"); 9312acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti const char *servers = evt->findParam("SERVERS"); 9412acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti if (lifetime && servers) { 9512acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti notifyInterfaceDnsServers(iface, lifetime, servers); 9612acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti } 97bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti } else if (action == evt->NlActionRouteUpdated || 98bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti action == evt->NlActionRouteRemoved) { 99bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti const char *route = evt->findParam("ROUTE"); 100bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti const char *gateway = evt->findParam("GATEWAY"); 101bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti const char *iface = evt->findParam("INTERFACE"); 102bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti if (route && (gateway || iface)) { 103bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti notifyRouteChange(action, route, gateway, iface); 104bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti } 1059b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti } 1069b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti 107e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall } else if (!strcmp(subsys, "qlog")) { 108e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall const char *alertName = evt->findParam("ALERT_NAME"); 109e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall const char *iface = evt->findParam("INTERFACE"); 110e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall notifyQuotaLimitReached(alertName, iface); 111e07effe6f8e9340dbee9428b29672adfb647c413JP Abgrall 112e07effe6f8e9340dbee9428b29672adfb647c413JP Abgrall } else if (!strcmp(subsys, "xt_idletimer")) { 113c79bcc491f01b4d7956d7bd01f0e912e22307f41Ashish Sharma const char *label = evt->findParam("INTERFACE"); 114e07effe6f8e9340dbee9428b29672adfb647c413JP Abgrall const char *state = evt->findParam("STATE"); 11527ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi const char *timestamp = evt->findParam("TIME_NS"); 116e07effe6f8e9340dbee9428b29672adfb647c413JP Abgrall if (state) 11727ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi notifyInterfaceClassActivity(label, !strcmp("active", state), timestamp); 118e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall 11940baed83f89e8d8f834cdfa94d0615076463c04bJP Abgrall#if !LOG_NDEBUG 12040baed83f89e8d8f834cdfa94d0615076463c04bJP Abgrall } else if (strcmp(subsys, "platform") && strcmp(subsys, "backlight")) { 12140baed83f89e8d8f834cdfa94d0615076463c04bJP Abgrall /* It is not a VSYNC or a backlight event */ 12240baed83f89e8d8f834cdfa94d0615076463c04bJP Abgrall ALOGV("unexpected event from subsystem %s", subsys); 12340baed83f89e8d8f834cdfa94d0615076463c04bJP Abgrall#endif 1246337b88ce4438d224819e9b381ddaf2873bbfddaAshish Sharma } 125d18304287dbabc7835be771400b85d4ae8b63de6San Mehat} 12667c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt 1270b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colittivoid NetlinkHandler::notify(int code, const char *format, ...) { 1280b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti char *msg; 1290b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti va_list args; 1300b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti va_start(args, format); 1310b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti if (vasprintf(&msg, format, args) >= 0) { 1320b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti mNm->getBroadcaster()->sendBroadcast(code, msg, false); 1330b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti free(msg); 1340b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti } else { 1350b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti SLOGE("Failed to send notification: vasprintf: %s", strerror(errno)); 1360b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti } 1370b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti va_end(args); 1380b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti} 13967c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt 1400b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colittivoid NetlinkHandler::notifyInterfaceAdded(const char *name) { 1410b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::InterfaceChange, "Iface added %s", name); 14267c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt} 14367c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt 14467c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwaltvoid NetlinkHandler::notifyInterfaceRemoved(const char *name) { 1450b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::InterfaceChange, "Iface removed %s", name); 14667c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt} 14767c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt 14867c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwaltvoid NetlinkHandler::notifyInterfaceChanged(const char *name, bool isUp) { 1490b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::InterfaceChange, 1500b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti "Iface changed %s %s", name, (isUp ? "up" : "down")); 151564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen} 152564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chen 153564df4efc87f3d04c3570836d38134fd949c4cafMike J. Chenvoid NetlinkHandler::notifyInterfaceLinkChanged(const char *name, bool isUp) { 1540b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::InterfaceChange, 1550b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti "Iface linkstate %s %s", name, (isUp ? "up" : "down")); 15667c5753274ee828b56f96b5e9cdae64c8562ad52Robert Greenwalt} 157e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall 158e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrallvoid NetlinkHandler::notifyQuotaLimitReached(const char *name, const char *iface) { 1590b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::BandwidthControl, "limit alert %s %s", name, iface); 160e0ebc46c0aa38ce4f35bd3b60c0fcb9204d4c35eJP Abgrall} 1616337b88ce4438d224819e9b381ddaf2873bbfddaAshish Sharma 16298f65d32b1530b4da6050e38d52f955710577efbHaoyu Baivoid NetlinkHandler::notifyInterfaceClassActivity(const char *name, 16327ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi bool isActive, const char *timestamp) { 16427ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi if (timestamp == NULL) 16527ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi notify(ResponseCode::InterfaceClassActivity, 1660b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti "IfaceClass %s %s", isActive ? "active" : "idle", name); 16727ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi else 16827ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi notify(ResponseCode::InterfaceClassActivity, 16927ab7e10d7b8343f6354359b3d2c6900d6beed78Ruchi Kandoi "IfaceClass %s %s %s", isActive ? "active" : "idle", name, timestamp); 1706337b88ce4438d224819e9b381ddaf2873bbfddaAshish Sharma} 1719b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti 1729b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colittivoid NetlinkHandler::notifyAddressChanged(int action, const char *addr, 1739b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti const char *iface, const char *flags, 1749b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti const char *scope) { 1750b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti notify(ResponseCode::InterfaceAddressChange, 1760b454ea4abdc8a563af6da58fa37835729220acfLorenzo Colitti "Address %s %s %s %s %s", 177bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti (action == NetlinkEvent::NlActionAddressUpdated) ? kUpdated : kRemoved, 178bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti addr, iface, flags, scope); 1799b3cd7635caf5948d7d4b11f8f588c9d2811d58eLorenzo Colitti} 18012acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti 18112acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colittivoid NetlinkHandler::notifyInterfaceDnsServers(const char *iface, 18212acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti const char *lifetime, 18312acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti const char *servers) { 18412acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti notify(ResponseCode::InterfaceDnsInfo, "DnsInfo servers %s %s %s", 18512acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti iface, lifetime, servers); 18612acae8db9dee865a41f0fd11dacf01112115920Lorenzo Colitti} 187bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti 188bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colittivoid NetlinkHandler::notifyRouteChange(int action, const char *route, 189bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti const char *gateway, const char *iface) { 190bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti notify(ResponseCode::RouteChange, 191bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti "Route %s %s%s%s%s%s", 192bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti (action == NetlinkEvent::NlActionRouteUpdated) ? kUpdated : kRemoved, 193bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti route, 194bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti *gateway ? " via " : "", 195bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti gateway, 196bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti *iface ? " dev " : "", 197bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti iface); 198bd0f224f077264f21fa858b7a93062e3b8564006Lorenzo Colitti} 199