1007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick/* 2007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * Copyright (C) 2010 The Android Open Source Project 3007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * 4007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * Licensed under the Apache License, Version 2.0 (the "License"); 5007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * you may not use this file except in compliance with the License. 6007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * You may obtain a copy of the License at 7007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * 8007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * http://www.apache.org/licenses/LICENSE-2.0 9007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * 10007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * Unless required by applicable law or agreed to in writing, software 11007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * distributed under the License is distributed on an "AS IS" BASIS, 12007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * See the License for the specific language governing permissions and 14007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick * limitations under the License. 15007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick */ 16007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 17007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <arpa/inet.h> 18007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <dirent.h> 19007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <errno.h> 20007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <linux/if.h> 216c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti#include <math.h> 22007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <netdb.h> 23007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <netinet/in.h> 24007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <stdlib.h> 25007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <sys/socket.h> 26007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <sys/types.h> 27ff2c0d8c13457e43f0d4bf06d3177271aac104c1Olivier Bailly#include <string.h> 280cdb680c7648b0f48e6513926cb0a06d290a5cbeJurijs Oniscuks#include <pthread.h> 29a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak#include <resolv_netid.h> 302d4610ec34cc78799a3353638fa05ee53276892aMattias Falk#include <net/if.h> 31007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 32007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#define LOG_TAG "DnsProxyListener" 33007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#define DBG 0 342d4610ec34cc78799a3353638fa05ee53276892aMattias Falk#define VDBG 0 35007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 366c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti#include <chrono> 376c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti 38007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <cutils/log.h> 396c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti#include <binder/IServiceManager.h> 406c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti#include <utils/String16.h> 41007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include <sysutils/SocketClient.h> 42007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 437dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen#include "Fwmark.h" 44007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick#include "DnsProxyListener.h" 457dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen#include "NetdConstants.h" 467dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen#include "NetworkController.h" 47ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun#include "ResponseCode.h" 486c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti#include "android/net/metrics/IDnsEventListener.h" 496c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti 506c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colittiusing android::String16; 516c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colittiusing android::interface_cast; 526c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colittiusing android::net::metrics::IDnsEventListener; 53007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 54f4f6c8de3f091be4b91a5a9d7f14e8882ec6d502Sreeram RamachandranDnsProxyListener::DnsProxyListener(const NetworkController* netCtrl) : 55f4f6c8de3f091be4b91a5a9d7f14e8882ec6d502Sreeram Ramachandran FrameworkListener("dnsproxyd"), mNetCtrl(netCtrl) { 567dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen registerCmd(new GetAddrInfoCmd(this)); 577dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen registerCmd(new GetHostByAddrCmd(this)); 587dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen registerCmd(new GetHostByNameCmd(this)); 597dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen} 607dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen 61cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik KlineDnsProxyListener::GetAddrInfoHandler::GetAddrInfoHandler( 62cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline SocketClient *c, char* host, char* service, struct addrinfo* hints, 636c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti const struct android_net_context& netcontext, 646c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti const android::sp<android::net::metrics::IDnsEventListener>& dnsEventListener) 652d4610ec34cc78799a3353638fa05ee53276892aMattias Falk : mClient(c), 662d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mHost(host), 672d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mService(service), 682d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mHints(hints), 696c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mNetContext(netcontext), 706c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsEventListener(dnsEventListener) { 71007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 72007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 73007e987fee7e815e0c4bc820f434a632b7a69a9dBrad FitzpatrickDnsProxyListener::GetAddrInfoHandler::~GetAddrInfoHandler() { 74007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick free(mHost); 75007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick free(mService); 76007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick free(mHints); 77007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 78007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 79007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrickvoid DnsProxyListener::GetAddrInfoHandler::start() { 800cdb680c7648b0f48e6513926cb0a06d290a5cbeJurijs Oniscuks pthread_t thread; 810cdb680c7648b0f48e6513926cb0a06d290a5cbeJurijs Oniscuks pthread_create(&thread, NULL, 82007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick DnsProxyListener::GetAddrInfoHandler::threadStart, this); 832d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_detach(thread); 84007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 85007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 86007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrickvoid* DnsProxyListener::GetAddrInfoHandler::threadStart(void* obj) { 87007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick GetAddrInfoHandler* handler = reinterpret_cast<GetAddrInfoHandler*>(obj); 88007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick handler->run(); 89007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick delete handler; 90007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick pthread_exit(NULL); 91007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick return NULL; 92007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 93007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 946c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colittiandroid::sp<IDnsEventListener> DnsProxyListener::getDnsEventListener() { 956c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti if (mDnsEventListener == nullptr) { 966c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // Use checkService instead of getService because getService waits for 5 seconds for the 976c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // service to become available. The DNS resolver inside netd is started much earlier in the 986c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // boot sequence than the framework DNS listener, and we don't want to delay all DNS lookups 996c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // for 5 seconds until the DNS listener starts up. 1006c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti android::sp<android::IBinder> b = android::defaultServiceManager()->checkService( 1016c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti android::String16("dns_listener")); 1026c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti if (b != nullptr) { 1036c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsEventListener = interface_cast<IDnsEventListener>(b); 1046c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti } 1056c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti } 1066c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // If the DNS listener service is dead, the binder call will just return an error, which should 1076c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // be fine because the only impact is that we can't log DNS events. In any case, this should 1086c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // only happen if the system server is going down, which means it will shortly be taking us down 1096c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti // with it. 1106c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti return mDnsEventListener; 1116c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti} 1126c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti 113fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughesstatic bool sendBE32(SocketClient* c, uint32_t data) { 114fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes uint32_t be_data = htonl(data); 115fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return c->sendData(&be_data, sizeof(be_data)) == 0; 116fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes} 117fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 118007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick// Sends 4 bytes of big-endian length, followed by the data. 119007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick// Returns true on success. 120fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughesstatic bool sendLenAndData(SocketClient* c, const int len, const void* data) { 121fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return sendBE32(c, len) && (len == 0 || c->sendData(data, len) == 0); 122007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 123007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 1242d4610ec34cc78799a3353638fa05ee53276892aMattias Falk// Returns true on success 1252d4610ec34cc78799a3353638fa05ee53276892aMattias Falkstatic bool sendhostent(SocketClient *c, struct hostent *hp) { 1262d4610ec34cc78799a3353638fa05ee53276892aMattias Falk bool success = true; 1272d4610ec34cc78799a3353638fa05ee53276892aMattias Falk int i; 1282d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (hp->h_name != NULL) { 1292d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, strlen(hp->h_name)+1, hp->h_name); 1302d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } else { 1312d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, 0, "") == 0; 1322d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 1332d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 1342d4610ec34cc78799a3353638fa05ee53276892aMattias Falk for (i=0; hp->h_aliases[i] != NULL; i++) { 1352d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, strlen(hp->h_aliases[i])+1, hp->h_aliases[i]); 1362d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 1372d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, 0, ""); // null to indicate we're done 1382d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 1392d4610ec34cc78799a3353638fa05ee53276892aMattias Falk uint32_t buf = htonl(hp->h_addrtype); 1402d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= c->sendData(&buf, sizeof(buf)) == 0; 1412d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 1422d4610ec34cc78799a3353638fa05ee53276892aMattias Falk buf = htonl(hp->h_length); 1432d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= c->sendData(&buf, sizeof(buf)) == 0; 1442d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 1452d4610ec34cc78799a3353638fa05ee53276892aMattias Falk for (i=0; hp->h_addr_list[i] != NULL; i++) { 1462d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, 16, hp->h_addr_list[i]); 1472d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 1482d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendLenAndData(c, 0, ""); // null to indicate we're done 1492d4610ec34cc78799a3353638fa05ee53276892aMattias Falk return success; 1502d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 1512d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 152fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughesstatic bool sendaddrinfo(SocketClient* c, struct addrinfo* ai) { 153fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // struct addrinfo { 154fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // int ai_flags; /* AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST */ 155fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // int ai_family; /* PF_xxx */ 156fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // int ai_socktype; /* SOCK_xxx */ 157fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // int ai_protocol; /* 0 or IPPROTO_xxx for IPv4 and IPv6 */ 158fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // socklen_t ai_addrlen; /* length of ai_addr */ 159fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // char *ai_canonname; /* canonical name for hostname */ 160fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // struct sockaddr *ai_addr; /* binary address */ 161fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // struct addrinfo *ai_next; /* next structure in linked list */ 162fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // }; 163fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 164fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // Write the struct piece by piece because we might be a 64-bit netd 165fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // talking to a 32-bit process. 166fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes bool success = 167fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes sendBE32(c, ai->ai_flags) && 168fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes sendBE32(c, ai->ai_family) && 169fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes sendBE32(c, ai->ai_socktype) && 170fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes sendBE32(c, ai->ai_protocol); 171fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes if (!success) { 172fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return false; 173fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes } 174fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 175fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // ai_addrlen and ai_addr. 176fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes if (!sendLenAndData(c, ai->ai_addrlen, ai->ai_addr)) { 177fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return false; 178fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes } 179fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 180fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes // strlen(ai_canonname) and ai_canonname. 181fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes if (!sendLenAndData(c, ai->ai_canonname ? strlen(ai->ai_canonname) + 1 : 0, ai->ai_canonname)) { 182fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return false; 183fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes } 184fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 185fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes return true; 186fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes} 187fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes 188007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrickvoid DnsProxyListener::GetAddrInfoHandler::run() { 189007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (DBG) { 190cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline ALOGD("GetAddrInfoHandler, now for %s / %s / {%u,%u,%u,%u,%u}", mHost, mService, 191cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline mNetContext.app_netid, mNetContext.app_mark, 192cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline mNetContext.dns_netid, mNetContext.dns_mark, 193cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline mNetContext.uid); 194007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 195007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 196007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick struct addrinfo* result = NULL; 1976c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti Stopwatch s; 198cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline uint32_t rv = android_getaddrinfofornetcontext(mHost, mService, mHints, &mNetContext, &result); 1996c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti const int latencyMs = lround(s.timeTaken()); 2006c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti 201ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun if (rv) { 202ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun // getaddrinfo failed 20340e0c13d6b77a9260b6da4c9e11cca8a5f994ea2Selim Gurun mClient->sendBinaryMsg(ResponseCode::DnsProxyOperationFailed, &rv, sizeof(rv)); 204ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun } else { 205ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun bool success = !mClient->sendCode(ResponseCode::DnsProxyQueryResult); 206007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick struct addrinfo* ai = result; 207007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick while (ai && success) { 208fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes success = sendBE32(mClient, 1) && sendaddrinfo(mClient, ai); 209007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick ai = ai->ai_next; 210007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 211fe743018ad6ce7fb61db7f6f2efbe9832e9599dcElliott Hughes success = success && sendBE32(mClient, 0); 212ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun if (!success) { 213ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun ALOGW("Error writing DNS result to client"); 214ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun } 215007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 216007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (result) { 217007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick freeaddrinfo(result); 218007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 21934ffd85aed3838d53bd1136c751a7825de1940e0Brad Fitzpatrick mClient->decRef(); 2206c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti if (mDnsEventListener != nullptr) { 2216c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsEventListener->onDnsEvent(mNetContext.dns_netid, IDnsEventListener::EVENT_GETADDRINFO, 2226c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti (int32_t) rv, latencyMs); 2236c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti } 224007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 225007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 2266c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo ColittiDnsProxyListener::GetAddrInfoCmd::GetAddrInfoCmd(DnsProxyListener* dnsProxyListener) : 227a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak NetdCommand("getaddrinfo"), 2287dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mDnsProxyListener(dnsProxyListener) { 229007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 230007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 231007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrickint DnsProxyListener::GetAddrInfoCmd::runCommand(SocketClient *cli, 232007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick int argc, char **argv) { 2330475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom if (DBG) { 2340475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom for (int i = 0; i < argc; i++) { 2357b984e3f7e724f8a3547a707210319f3d479f261Steve Block ALOGD("argv[%i]=%s", i, argv[i]); 2360475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom } 2370475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom } 23852b17bcfdf63a9d00f3ab1bc6ff738cbc4d30b0bNick Kralevich if (argc != 8) { 239ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun char* msg = NULL; 240ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun asprintf( &msg, "Invalid number of arguments to getaddrinfo: %i", argc); 241ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun ALOGW("%s", msg); 242ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun cli->sendMsg(ResponseCode::CommandParameterError, msg, false); 243ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun free(msg); 2440475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom return -1; 245007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 246007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 247007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick char* name = argv[1]; 248007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (strcmp("^", name) == 0) { 249007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick name = NULL; 250007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } else { 251007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick name = strdup(name); 252007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 253007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 254007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick char* service = argv[2]; 255007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (strcmp("^", service) == 0) { 256007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick service = NULL; 257007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } else { 258007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick service = strdup(service); 259007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 260007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 261007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick struct addrinfo* hints = NULL; 262007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick int ai_flags = atoi(argv[3]); 263007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick int ai_family = atoi(argv[4]); 264007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick int ai_socktype = atoi(argv[5]); 265007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick int ai_protocol = atoi(argv[6]); 266a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak unsigned netId = strtoul(argv[7], NULL, 10); 2673acdb064d8d5a86b1973fcda1e8dd83e0e12e0b3Chad Brubaker uid_t uid = cli->getUid(); 2682d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 269cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline struct android_net_context netcontext; 270cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline mDnsProxyListener->mNetCtrl->getNetworkContext(netId, uid, &netcontext); 271be1e7d8c0e0abb37262770e2455176413a4b0f7fPaul Jensen 272007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (ai_flags != -1 || ai_family != -1 || 273007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick ai_socktype != -1 || ai_protocol != -1) { 274007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick hints = (struct addrinfo*) calloc(1, sizeof(struct addrinfo)); 275007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick hints->ai_flags = ai_flags; 276007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick hints->ai_family = ai_family; 277007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick hints->ai_socktype = ai_socktype; 278007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick hints->ai_protocol = ai_protocol; 279007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 280007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 281007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick if (DBG) { 282cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline ALOGD("GetAddrInfoHandler for %s / %s / {%u,%u,%u,%u,%u}", 283007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick name ? name : "[nullhost]", 2842d4610ec34cc78799a3353638fa05ee53276892aMattias Falk service ? service : "[nullservice]", 285cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline netcontext.app_netid, netcontext.app_mark, 286cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline netcontext.dns_netid, netcontext.dns_mark, 287cea2d3455eb7c0d9ad1430607cbe98cc09251c1fErik Kline netcontext.uid); 288007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick } 289007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 29034ffd85aed3838d53bd1136c751a7825de1940e0Brad Fitzpatrick cli->incRef(); 291007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick DnsProxyListener::GetAddrInfoHandler* handler = 2926c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti new DnsProxyListener::GetAddrInfoHandler(cli, name, service, hints, netcontext, 2936c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsProxyListener->getDnsEventListener()); 294007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick handler->start(); 295007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick 296007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick return 0; 297007e987fee7e815e0c4bc820f434a632b7a69a9dBrad Fitzpatrick} 2981dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 2991dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk/******************************************************* 3002d4610ec34cc78799a3353638fa05ee53276892aMattias Falk * GetHostByName * 3012d4610ec34cc78799a3353638fa05ee53276892aMattias Falk *******************************************************/ 3026c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo ColittiDnsProxyListener::GetHostByNameCmd::GetHostByNameCmd(DnsProxyListener* dnsProxyListener) : 303a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak NetdCommand("gethostbyname"), 3047dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mDnsProxyListener(dnsProxyListener) { 3052d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3062d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3072d4610ec34cc78799a3353638fa05ee53276892aMattias Falkint DnsProxyListener::GetHostByNameCmd::runCommand(SocketClient *cli, 3082d4610ec34cc78799a3353638fa05ee53276892aMattias Falk int argc, char **argv) { 3092d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (DBG) { 3102d4610ec34cc78799a3353638fa05ee53276892aMattias Falk for (int i = 0; i < argc; i++) { 3112d4610ec34cc78799a3353638fa05ee53276892aMattias Falk ALOGD("argv[%i]=%s", i, argv[i]); 3122d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3132d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 31452b17bcfdf63a9d00f3ab1bc6ff738cbc4d30b0bNick Kralevich if (argc != 4) { 3152d4610ec34cc78799a3353638fa05ee53276892aMattias Falk char* msg = NULL; 3162d4610ec34cc78799a3353638fa05ee53276892aMattias Falk asprintf(&msg, "Invalid number of arguments to gethostbyname: %i", argc); 3172d4610ec34cc78799a3353638fa05ee53276892aMattias Falk ALOGW("%s", msg); 3182d4610ec34cc78799a3353638fa05ee53276892aMattias Falk cli->sendMsg(ResponseCode::CommandParameterError, msg, false); 3192d4610ec34cc78799a3353638fa05ee53276892aMattias Falk free(msg); 3202d4610ec34cc78799a3353638fa05ee53276892aMattias Falk return -1; 3212d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3222d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3233acdb064d8d5a86b1973fcda1e8dd83e0e12e0b3Chad Brubaker uid_t uid = cli->getUid(); 324a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak unsigned netId = strtoul(argv[1], NULL, 10); 32552b17bcfdf63a9d00f3ab1bc6ff738cbc4d30b0bNick Kralevich char* name = argv[2]; 32652b17bcfdf63a9d00f3ab1bc6ff738cbc4d30b0bNick Kralevich int af = atoi(argv[3]); 3272d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3282d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (strcmp(name, "^") == 0) { 3292d4610ec34cc78799a3353638fa05ee53276892aMattias Falk name = NULL; 3302d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } else { 3312d4610ec34cc78799a3353638fa05ee53276892aMattias Falk name = strdup(name); 3322d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3332d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3341011b4941d96d9fd90bc7243be387b63ec775936Sreeram Ramachandran uint32_t mark = mDnsProxyListener->mNetCtrl->getNetworkForDns(&netId, uid); 335a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak 3362d4610ec34cc78799a3353638fa05ee53276892aMattias Falk cli->incRef(); 3372d4610ec34cc78799a3353638fa05ee53276892aMattias Falk DnsProxyListener::GetHostByNameHandler* handler = 3386c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti new DnsProxyListener::GetHostByNameHandler(cli, name, af, netId, mark, 3396c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsProxyListener->getDnsEventListener()); 3402d4610ec34cc78799a3353638fa05ee53276892aMattias Falk handler->start(); 3412d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3422d4610ec34cc78799a3353638fa05ee53276892aMattias Falk return 0; 3432d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3442d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3456c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo ColittiDnsProxyListener::GetHostByNameHandler::GetHostByNameHandler( 3466c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti SocketClient* c, char* name, int af, unsigned netId, uint32_t mark, 3476c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti const android::sp<android::net::metrics::IDnsEventListener>& dnsEventListener) 3482d4610ec34cc78799a3353638fa05ee53276892aMattias Falk : mClient(c), 3492d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mName(name), 350d2617936acc15567fc5111bbdb4dde20845c3cbaChad Brubaker mAf(af), 3517dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mNetId(netId), 3526c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mMark(mark), 3536c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsEventListener(dnsEventListener) { 3542d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3552d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3562d4610ec34cc78799a3353638fa05ee53276892aMattias FalkDnsProxyListener::GetHostByNameHandler::~GetHostByNameHandler() { 3572d4610ec34cc78799a3353638fa05ee53276892aMattias Falk free(mName); 3582d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3592d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3602d4610ec34cc78799a3353638fa05ee53276892aMattias Falkvoid DnsProxyListener::GetHostByNameHandler::start() { 3612d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_t thread; 3622d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_create(&thread, NULL, 3632d4610ec34cc78799a3353638fa05ee53276892aMattias Falk DnsProxyListener::GetHostByNameHandler::threadStart, this); 3642d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_detach(thread); 3652d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3662d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3672d4610ec34cc78799a3353638fa05ee53276892aMattias Falkvoid* DnsProxyListener::GetHostByNameHandler::threadStart(void* obj) { 3682d4610ec34cc78799a3353638fa05ee53276892aMattias Falk GetHostByNameHandler* handler = reinterpret_cast<GetHostByNameHandler*>(obj); 3692d4610ec34cc78799a3353638fa05ee53276892aMattias Falk handler->run(); 3702d4610ec34cc78799a3353638fa05ee53276892aMattias Falk delete handler; 3712d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_exit(NULL); 3722d4610ec34cc78799a3353638fa05ee53276892aMattias Falk return NULL; 3732d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 3742d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3752d4610ec34cc78799a3353638fa05ee53276892aMattias Falkvoid DnsProxyListener::GetHostByNameHandler::run() { 3762d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (DBG) { 3772d4610ec34cc78799a3353638fa05ee53276892aMattias Falk ALOGD("DnsProxyListener::GetHostByNameHandler::run\n"); 3782d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3792d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3806c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti Stopwatch s; 3816c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti struct hostent* hp = android_gethostbynamefornet(mName, mAf, mNetId, mMark); 3826c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti const int latencyMs = lround(s.timeTaken()); 3832d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3842d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (DBG) { 3852a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach ALOGD("GetHostByNameHandler::run gethostbyname errno: %s hp->h_name = %s, name_len = %zu\n", 3862d4610ec34cc78799a3353638fa05ee53276892aMattias Falk hp ? "success" : strerror(errno), 3872a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach (hp && hp->h_name) ? hp->h_name : "null", 3882a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach (hp && hp->h_name) ? strlen(hp->h_name) + 1 : 0); 3892d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3902d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3912d4610ec34cc78799a3353638fa05ee53276892aMattias Falk bool success = true; 3922d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (hp) { 3932d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success = mClient->sendCode(ResponseCode::DnsProxyQueryResult) == 0; 3942d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendhostent(mClient, hp); 3952d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } else { 3962d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success = mClient->sendBinaryMsg(ResponseCode::DnsProxyOperationFailed, NULL, 0) == 0; 3972d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 3982d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 3992d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (!success) { 4002d4610ec34cc78799a3353638fa05ee53276892aMattias Falk ALOGW("GetHostByNameHandler: Error writing DNS result to client\n"); 4012d4610ec34cc78799a3353638fa05ee53276892aMattias Falk } 4022d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mClient->decRef(); 4036c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti 4046c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti if (mDnsEventListener != nullptr) { 4056c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti mDnsEventListener->onDnsEvent(mNetId, IDnsEventListener::EVENT_GETHOSTBYNAME, 4066c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti h_errno, latencyMs); 4076c97716e41d751cb0ebf49c93943923a356d3a96Lorenzo Colitti } 4082d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 4092d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 4102d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 4112d4610ec34cc78799a3353638fa05ee53276892aMattias Falk/******************************************************* 4122d4610ec34cc78799a3353638fa05ee53276892aMattias Falk * GetHostByAddr * 4131dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk *******************************************************/ 4147dd69a1b0b95e67c8b939884476f2cf888026eb7Paul JensenDnsProxyListener::GetHostByAddrCmd::GetHostByAddrCmd(const DnsProxyListener* dnsProxyListener) : 415a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak NetdCommand("gethostbyaddr"), 4167dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mDnsProxyListener(dnsProxyListener) { 4171dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 4181dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4191dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falkint DnsProxyListener::GetHostByAddrCmd::runCommand(SocketClient *cli, 4201dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk int argc, char **argv) { 4210475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom if (DBG) { 4220475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom for (int i = 0; i < argc; i++) { 4237b984e3f7e724f8a3547a707210319f3d479f261Steve Block ALOGD("argv[%i]=%s", i, argv[i]); 4240475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom } 4250475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom } 42652b17bcfdf63a9d00f3ab1bc6ff738cbc4d30b0bNick Kralevich if (argc != 5) { 427ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun char* msg = NULL; 428ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun asprintf(&msg, "Invalid number of arguments to gethostbyaddr: %i", argc); 429ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun ALOGW("%s", msg); 430ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun cli->sendMsg(ResponseCode::CommandParameterError, msg, false); 431ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun free(msg); 4320475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom return -1; 4331dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk } 4341dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4350475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom char* addrStr = argv[1]; 4361dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk int addrLen = atoi(argv[2]); 4371dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk int addrFamily = atoi(argv[3]); 4383acdb064d8d5a86b1973fcda1e8dd83e0e12e0b3Chad Brubaker uid_t uid = cli->getUid(); 439a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak unsigned netId = strtoul(argv[4], NULL, 10); 4401dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4410475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom void* addr = malloc(sizeof(struct in6_addr)); 4420475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom errno = 0; 4430475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom int result = inet_pton(addrFamily, addrStr, addr); 4440475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom if (result <= 0) { 445ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun char* msg = NULL; 446ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun asprintf(&msg, "inet_pton(\"%s\") failed %s", addrStr, strerror(errno)); 447ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun ALOGW("%s", msg); 448ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun cli->sendMsg(ResponseCode::OperationFailed, msg, false); 4490475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom free(addr); 450ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun free(msg); 4510475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom return -1; 4520475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom } 4530475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom 4541011b4941d96d9fd90bc7243be387b63ec775936Sreeram Ramachandran uint32_t mark = mDnsProxyListener->mNetCtrl->getNetworkForDns(&netId, uid); 455a0efaece8c05370f201efe099a537ceb014c6fdfSzymon Jakubczak 45634ffd85aed3838d53bd1136c751a7825de1940e0Brad Fitzpatrick cli->incRef(); 4571dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk DnsProxyListener::GetHostByAddrHandler* handler = 4587dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen new DnsProxyListener::GetHostByAddrHandler(cli, addr, addrLen, addrFamily, netId, mark); 4591dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk handler->start(); 4601dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4611dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk return 0; 4621dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 4631dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4642d4610ec34cc78799a3353638fa05ee53276892aMattias FalkDnsProxyListener::GetHostByAddrHandler::GetHostByAddrHandler(SocketClient* c, 4652d4610ec34cc78799a3353638fa05ee53276892aMattias Falk void* address, 4662d4610ec34cc78799a3353638fa05ee53276892aMattias Falk int addressLen, 4672d4610ec34cc78799a3353638fa05ee53276892aMattias Falk int addressFamily, 4687dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen unsigned netId, 4697dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen uint32_t mark) 4702d4610ec34cc78799a3353638fa05ee53276892aMattias Falk : mClient(c), 4712d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mAddress(address), 4722d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mAddressLen(addressLen), 4732d4610ec34cc78799a3353638fa05ee53276892aMattias Falk mAddressFamily(addressFamily), 4747dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mNetId(netId), 4757dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen mMark(mark) { 4762d4610ec34cc78799a3353638fa05ee53276892aMattias Falk} 4772d4610ec34cc78799a3353638fa05ee53276892aMattias Falk 4781dbd6cf148ea3fab57ec0644c336e94c78a488beMattias FalkDnsProxyListener::GetHostByAddrHandler::~GetHostByAddrHandler() { 4791dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk free(mAddress); 4801dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 4811dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4821dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falkvoid DnsProxyListener::GetHostByAddrHandler::start() { 4830cdb680c7648b0f48e6513926cb0a06d290a5cbeJurijs Oniscuks pthread_t thread; 4840cdb680c7648b0f48e6513926cb0a06d290a5cbeJurijs Oniscuks pthread_create(&thread, NULL, 4851dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk DnsProxyListener::GetHostByAddrHandler::threadStart, this); 4862d4610ec34cc78799a3353638fa05ee53276892aMattias Falk pthread_detach(thread); 4871dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 4881dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4891dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falkvoid* DnsProxyListener::GetHostByAddrHandler::threadStart(void* obj) { 4901dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk GetHostByAddrHandler* handler = reinterpret_cast<GetHostByAddrHandler*>(obj); 4911dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk handler->run(); 4921dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk delete handler; 4931dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk pthread_exit(NULL); 4941dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk return NULL; 4951dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 4961dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 4971dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falkvoid DnsProxyListener::GetHostByAddrHandler::run() { 4981dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk if (DBG) { 4997b984e3f7e724f8a3547a707210319f3d479f261Steve Block ALOGD("DnsProxyListener::GetHostByAddrHandler::run\n"); 5001dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk } 5011dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk struct hostent* hp; 5021dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 5030475ae98cd8f45de815d67d1966edaf5997be9a9Brian Carlstrom // NOTE gethostbyaddr should take a void* but bionic thinks it should be char* 5047dd69a1b0b95e67c8b939884476f2cf888026eb7Paul Jensen hp = android_gethostbyaddrfornet((char*)mAddress, mAddressLen, mAddressFamily, mNetId, mMark); 5051dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 5061dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk if (DBG) { 5072a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach ALOGD("GetHostByAddrHandler::run gethostbyaddr errno: %s hp->h_name = %s, name_len = %zu\n", 5081dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk hp ? "success" : strerror(errno), 5092a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach (hp && hp->h_name) ? hp->h_name : "null", 5102a54d96c5ae809216965e6f86e70cdae2ed7e09cMatthew Leach (hp && hp->h_name) ? strlen(hp->h_name) + 1 : 0); 5111dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk } 5121dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 5132d4610ec34cc78799a3353638fa05ee53276892aMattias Falk bool success = true; 514ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun if (hp) { 5152d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success = mClient->sendCode(ResponseCode::DnsProxyQueryResult) == 0; 5162d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success &= sendhostent(mClient, hp); 517ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun } else { 5182d4610ec34cc78799a3353638fa05ee53276892aMattias Falk success = mClient->sendBinaryMsg(ResponseCode::DnsProxyOperationFailed, NULL, 0) == 0; 519ddb34755fb54882b3ece8d4919593e26a2c1cfcbSelim Gurun } 5201dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk 5212d4610ec34cc78799a3353638fa05ee53276892aMattias Falk if (!success) { 5220e76b761a1514d5182675dd7b7d33725f62d6bc5Steve Block ALOGW("GetHostByAddrHandler: Error writing DNS result to client\n"); 5231dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk } 52434ffd85aed3838d53bd1136c751a7825de1940e0Brad Fitzpatrick mClient->decRef(); 5251dbd6cf148ea3fab57ec0644c336e94c78a488beMattias Falk} 526