BandwidthController.cpp revision 92009c8effc75c2d70a6c9a1ac33ba2c60b78820
14a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/* 24a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Copyright (C) 2011 The Android Open Source Project 34a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 44a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Licensed under the Apache License, Version 2.0 (the "License"); 54a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * you may not use this file except in compliance with the License. 64a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * You may obtain a copy of the License at 74a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 84a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * http://www.apache.org/licenses/LICENSE-2.0 94a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 104a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Unless required by applicable law or agreed to in writing, software 114a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * distributed under the License is distributed on an "AS IS" BASIS, 124a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 134a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * See the License for the specific language governing permissions and 144a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * limitations under the License. 154a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 164a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 17db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall// #define LOG_NDEBUG 0 18db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 19db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 20db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * The CommandListener, FrameworkListener don't allow for 21db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * multiple calls in parallel to reach the BandwidthController. 22db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * If they ever were to allow it, then netd/ would need some tweaking. 23db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 24db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall#include <errno.h> 264a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <fcntl.h> 27db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall#include <stdio.h> 288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall#include <stdlib.h> 294a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <string.h> 304a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 314a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/socket.h> 324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/stat.h> 334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/types.h> 344a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/wait.h> 354a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 364a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/netlink.h> 374a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/rtnetlink.h> 384a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/pkt_sched.h> 394a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 404a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#define LOG_TAG "BandwidthController" 414a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <cutils/log.h> 424a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <cutils/properties.h> 4314150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand#include <logwrap/logwrap.h> 444a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 450031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall#include "NetdConstants.h" 464a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include "BandwidthController.h" 474a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 48db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* Alphabetical */ 4992009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall#define ALERT_IPT_TEMPLATE "%s %s -m quota2 ! --quota %lld --name %s" 50db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::ALERT_RULE_POS_IN_COSTLY_CHAIN = 4; 51c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallconst char BandwidthController::ALERT_GLOBAL_NAME[] = "globalAlert"; 528e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_INPUT = "bw_INPUT"; 538e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_FORWARD = "bw_FORWARD"; 548e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_OUTPUT = "bw_OUTPUT"; 558e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_RAW_PREROUTING = "bw_raw_PREROUTING"; 568e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_MANGLE_POSTROUTING = "bw_mangle_POSTROUTING"; 57db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_ARGS = 32; 58db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_LEN = 1024; 59db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IFACENAME_LEN = 64; 60db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IPT_OUTPUT_LINE_LEN = 256; 61db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 624a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/** 634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Some comments about the rules: 644a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * Ordering 654a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - when an interface is marked as costly it should be INSERTED into the INPUT/OUTPUT chains. 6629e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * E.g. "-I bw_INPUT -i rmnet0 --jump costly" 674a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota'd rules in the costly chain should be before penalty_box lookups. 6829e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * - the qtaguid counting is done at the end of the bw_INPUT/bw_OUTPUT user chains. 694a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 704a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * global quota vs per interface quota 714a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - global quota for all costly interfaces uses a single costly chain: 724a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . initial rules 73bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -N costly_shared 7429e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface0 --jump costly_shared 7529e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump costly_shared 76bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I costly_shared -m quota \! --quota 500000 \ 77bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 78bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_shared --jump penalty_box 798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall * 804a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . adding a new iface to this, E.g.: 8129e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface1 --jump costly_shared 8229e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface1 --jump costly_shared 834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota per interface. This is achieve by having "costly" chains per quota. 854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g. adding a new costly interface iface0 with its own quota: 864a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -N costly_iface0 8729e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface0 --jump costly_iface0 8829e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump costly_iface0 89bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 -m quota \! --quota 500000 \ 90bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 91bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 --jump penalty_box 924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 934a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * penalty_box handling: 944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - only one penalty_box for all interfaces 954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g Adding an app: 96bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A penalty_box -m owner --uid-owner app_3 \ 97bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 984a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 990031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_FLUSH_COMMANDS[] = { 1000031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 1010031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Cleanup rules. 1020031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Should normally include costly_<iface>, but we rely on the way they are setup 1030031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * to allow coexistance. 10439f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall */ 1050031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_INPUT", 1060031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_OUTPUT", 1070031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_FORWARD", 1080031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F penalty_box", 1090031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F costly_shared", 110f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 111f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -F bw_raw_PREROUTING", 112f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -F bw_mangle_POSTROUTING", 1130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall}; 1140031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 1150031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall/* The cleanup commands assume flushing has been done. */ 1160031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_CLEANUP_COMMANDS[] = { 1170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X penalty_box", 1180031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X costly_shared", 1190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1204a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 121db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_SETUP_COMMANDS[] = { 122bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-N costly_shared", 1230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-N penalty_box", 1240dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 126db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_BASIC_ACCOUNTING_COMMANDS[] = { 1270031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_INPUT -m owner --socket-exists", /* This is a tracking rule. */ 1280dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 1290031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_OUTPUT -m owner --socket-exists", /* This is a tracking rule. */ 1300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 131bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-A costly_shared --jump penalty_box", 132f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 13392009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall "-t raw -A bw_raw_PREROUTING -m owner --socket-exists", /* This is a tracking rule. */ 13492009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall "-t mangle -A bw_mangle_POSTROUTING -m owner --socket-exists", /* This is a tracking rule. */ 1350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1364a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1374a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP AbgrallBandwidthController::BandwidthController(void) { 1384a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 1394a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 140ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrallint BandwidthController::runIpxtablesCmd(const char *cmd, IptRejectOp rejectHandling, 141ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureHandling) { 1420dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 1438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 1443fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runIpxtablesCmd(cmd=%s)", cmd); 145ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV4, failureHandling); 146ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV6, failureHandling); 1470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 1480dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 1490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 15026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::StrncpyAndCheck(char *buffer, const char *src, size_t buffSize) { 15126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 15226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall memset(buffer, '\0', buffSize); // strncpy() is not filling leftover with '\0' 15326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall strncpy(buffer, src, buffSize); 15426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return buffer[buffSize - 1]; 15526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall} 15626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 1578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesCmd(const char *cmd, IptRejectOp rejectHandling, 158ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptIpVer iptVer, IptFailureLog failureHandling) { 15926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall char buffer[MAX_CMD_LEN]; 1604a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall const char *argv[MAX_CMD_ARGS]; 16126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall int argc = 0; 1624a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *next = buffer; 1634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *tmp; 16411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall int res; 16514150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand int status = 0; 1664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1670dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string fullCmd = cmd; 16826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 16926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (rejectHandling == IptRejectAdd) { 1700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fullCmd += " --jump REJECT --reject-with"; 17126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (iptVer) { 17226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV4: 1738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp-net-prohibited"; 1748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 17526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV6: 1768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp6-adm-prohibited"; 1778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 1780dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 1790dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 1800dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 18111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, " "); 18211b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, iptVer == IptIpV4 ? IPTABLES_PATH : IP6TABLES_PATH); 1834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 18414150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand if (StrncpyAndCheck(buffer, fullCmd.c_str(), sizeof(buffer))) { 18514150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand ALOGE("iptables command too long"); 18614150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand return -1; 18714150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand } 18814150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand 18914150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argc = 0; 19014150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand while ((tmp = strsep(&next, " "))) { 19114150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argv[argc++] = tmp; 19214150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand if (argc >= MAX_CMD_ARGS) { 19314150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand ALOGE("iptables argument overflow"); 1944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 1954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 19614150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand } 197fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 19814150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argv[argc] = NULL; 19914150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand res = android_fork_execvp(argc, (char **)argv, &status, false, 20014150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand failureHandling == IptFailShow); 20111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall 20214150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand if ((res || !WIFEXITED(status) || WEXITSTATUS(status)) && 20314150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand failureHandling == IptFailShow) { 20414150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand ALOGE("runIptablesCmd(): failed %s res=%d status=%d", fullCmd.c_str(), 20514150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand res, status); 20611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 20711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return res; 2084a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2094a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2100031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::setupIptablesHooks(void) { 2110031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2120031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* Some of the initialCommands are allowed to fail */ 2130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2140031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 2150031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2160031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_CLEANUP_COMMANDS) / sizeof(char*), 2170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_CLEANUP_COMMANDS, RunCmdFailureOk); 2180031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2190031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_SETUP_COMMANDS) / sizeof(char*), 2200031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_SETUP_COMMANDS, RunCmdFailureBad); 2210031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2220031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2230031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall} 2240031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2250031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::enableBandwidthControl(bool force) { 226fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res; 2270031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall char value[PROPERTY_VALUE_MAX]; 2280031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2290031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!force) { 2300031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall property_get("persist.bandwidth.enable", value, "1"); 2310031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!strcmp(value, "0")) 2320031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2330031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall } 2348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 235db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Let's pretend we started from scratch ... */ 2368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaIfaces.clear(); 2378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.clear(); 2388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall naughtyAppUids.clear(); 239db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall globalAlertBytes = 0; 240c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount = 0; 241db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall sharedQuotaBytes = sharedAlertBytes = 0; 242db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2430031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2440031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 245db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2460031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res |= runCommands(sizeof(IPT_BASIC_ACCOUNTING_COMMANDS) / sizeof(char*), 247db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_BASIC_ACCOUNTING_COMMANDS, RunCmdFailureBad); 2488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 249fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 2504a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2514a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2524a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2534a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallint BandwidthController::disableBandwidthControl(void) { 2540031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2550031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 256fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 2574a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2584a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runCommands(int numCommands, const char *commands[], 2608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall RunCmdErrHandling cmdErrHandling) { 261fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 262ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureLogging = IptFailShow; 263ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall if (cmdErrHandling == RunCmdFailureOk) { 264ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall failureLogging = IptFailHide; 265ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall } 2663fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runCommands(): %d commands", numCommands); 267fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (int cmdNum = 0; cmdNum < numCommands; cmdNum++) { 268ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res = runIpxtablesCmd(commands[cmdNum], IptRejectNoAdd, failureLogging); 2690031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (res && cmdErrHandling != RunCmdFailureOk) 270fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 271fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 2720031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 273fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 274fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 2750dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallstd::string BandwidthController::makeIptablesNaughtyCmd(IptOp op, int uid) { 276fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 2778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 2788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 279fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 280fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 2818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 2828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 2838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 2848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 2858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 2868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 2878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 2888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 2898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 2908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 291fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 2928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s penalty_box -m owner --uid-owner %d", opFlag, uid); 2938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 2948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 295fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 296fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 297fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 298fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::addNaughtyApps(int numUids, char *appUids[]) { 29926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpAdd); 300fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 301fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 302fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeNaughtyApps(int numUids, char *appUids[]) { 30326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpRemove); 304fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 305fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 30626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::maninpulateNaughtyApps(int numUids, char *appStrUids[], NaughtyAppOp appOp) { 307fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall char cmd[MAX_CMD_LEN]; 308fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int uidNum; 30926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *failLogTemplate; 31026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall IptOp op; 311fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int appUids[numUids]; 31226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string naughtyCmd; 313b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall std::list<int /*uid*/>::iterator it; 3148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 31526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (appOp) { 31626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpAdd: 3178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpInsert; 3188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to add app uid %d to penalty box."; 3198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 32026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpRemove: 3218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpDelete; 3228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to delete app uid %d from penalty box."; 3238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3240031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 3250031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected app Op %d", appOp); 3260031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 32726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 32826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 329fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 330fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall appUids[uidNum] = atol(appStrUids[uidNum]); 331fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (appUids[uidNum] == 0) { 3325ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE(failLogTemplate, appUids[uidNum]); 333fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_parse; 334fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 335fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 336fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 337fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 338b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall int uid = appUids[uidNum]; 339b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall for (it = naughtyAppUids.begin(); it != naughtyAppUids.end(); it++) { 340b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (*it == uid) 341b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall break; 342b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 343b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall bool found = (it != naughtyAppUids.end()); 344b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 345b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (appOp == NaughtyAppOpRemove) { 346b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (!found) { 347b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("No such appUid %d to remove", uid); 348b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 349b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 350b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyAppUids.erase(it); 351b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } else { 352b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (found) { 353b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("appUid %d exists already", uid); 354b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 355b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 356b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyAppUids.push_front(uid); 357b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 358b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 359b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(op, uid); 36026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd)) { 361b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE(failLogTemplate, uid); 362fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_with_uidNum; 363fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 364fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 365fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 366fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 36726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_with_uidNum: 368fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall /* Try to remove the uid that failed in any case*/ 36926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(IptOpDelete, appUids[uidNum]); 37026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd); 37126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_parse: 37226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 3734a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 3744a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 37526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallstd::string BandwidthController::makeIptablesQuotaCmd(IptOp op, const char *costName, int64_t quota) { 376fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 3778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 3788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 3790dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 3803fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("makeIptablesQuotaCmd(%d, %lld)", op, quota); 3810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 382fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 3838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 3848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 3858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 3878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 3888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 3908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 3918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 3928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 393fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 3948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 395bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall // The requried IP version specific --jump REJECT ... will be added later. 3968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s costly_%s -m quota2 ! --quota %lld --name %s", opFlag, costName, quota, 3978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall costName); 3988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 3998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 4000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 4010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 4020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 40326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::prepCostlyIface(const char *ifn, QuotaType quotaType) { 4040dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 4050031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall int res = 0, res1, res2; 4068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int ruleInsertPos = 1; 4070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 4080dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 4090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4100dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* The "-N costly" is created upfront, no need to handle it here. */ 41126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 41226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 413bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 4140dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 4150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 4160031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 4170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Flush the costly_<iface> is allowed to fail in case it didn't exist. 4180031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Creating a new one is allowed to fail in case it existed. 4190031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * This helps with netd restarts. 4200031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall */ 4210031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 422ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res1 = runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-N %s", costCString); 424ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res2 = runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4250031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = (res1 && res2) || (!res1 && !res2); 4260031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s -j penalty_box", costCString); 42826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 42926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 43026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 431bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 43226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 4330031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 4340031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 4350031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 4360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 4370dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 4398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* The alert rule comes 1st */ 4408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ruleInsertPos = 2; 4418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 4420031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4430031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 444ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4450031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4460031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_INPUT %d -i %s --jump %s", ruleInsertPos, ifn, costCString); 44726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4480031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4490031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 450ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4510031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4520031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_OUTPUT %d -o %s --jump %s", ruleInsertPos, ifn, costCString); 45326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4540dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 4550dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 4560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 45726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::cleanupCostlyIface(const char *ifn, QuotaType quotaType) { 4580dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 4590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 4600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 4610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 4620dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 46326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 46426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 465bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 4660dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 4670dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 46826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 46926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 470bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 47126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 4720031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 4730031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 4740031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 4750dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 4760dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4770031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 47826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4790031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 48026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 482bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall /* The "-N costly_shared" is created upfront, no need to handle it here. */ 48326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (quotaType == QuotaUnique) { 4840dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 48526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 486a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall snprintf(cmd, sizeof(cmd), "-X %s", costCString); 487a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 488fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 489fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 490fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 4914a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4920dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceSharedQuota(const char *iface, int64_t maxBytes) { 4934a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char cmd[MAX_CMD_LEN]; 4944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 495fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 49626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 4978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::string ifaceName; 4988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ; 499bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 50026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<std::string>::iterator it; 5014a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 5038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 5045ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 5058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 5068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 50726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 5085ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 50926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 51026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 51126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 5124a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5134a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (maxBytes == -1) { 514fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return removeInterfaceSharedQuota(ifn); 5154a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5164a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5174a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* Insert ingress quota. */ 5180dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 5190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 520fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 5214a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 522fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 5230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 52426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaShared); 5250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 5260dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 52726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 5284a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (res) { 5295ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 530fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 5314a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 532fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 533fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 5340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.push_front(ifaceName); 535fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 536fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 537fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 538fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (maxBytes != sharedQuotaBytes) { 5398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 540fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (res) { 5415ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", costName); 542fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 543fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 544fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 5454a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5464a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return 0; 547fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 548fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall fail: 5494a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* 5504a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 5514a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * rules in the kernel to see which ones need cleaning up. 552fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 553fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * which resets everything. 5544a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 555fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall removeInterfaceSharedQuota(ifn); 5564a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 5574a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 5584a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall/* It will also cleanup any shared alerts */ 560fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeInterfaceSharedQuota(const char *iface) { 5614a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 562fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 56326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 5640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::list<std::string>::iterator it; 565bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 5664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 5685ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 56926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 57026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 5718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ifaceName = ifn; 57226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 5730dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 5740dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 575fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 5764a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5770dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 5785ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 579fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return -1; 5804a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 581fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 58226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaShared); 5830dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.erase(it); 584fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 5850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 586fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string quotaCmd; 587bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpDelete, costName, sharedQuotaBytes); 58826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 5898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaBytes = 0; 5908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (sharedAlertBytes) { 5918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall removeSharedAlert(); 5928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedAlertBytes = 0; 5938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 594fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 5954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return res; 5964a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 5970dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5980dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceQuota(const char *iface, int64_t maxBytes) { 5990dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 6000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 60126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 60226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 60326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 60426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 6050dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 6078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 6085ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 6098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (maxBytes == -1) { 61226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return removeInterfaceQuota(iface); 6130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6140dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6165ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 61726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 61826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 61926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 62026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 62126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 6220dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Insert ingress quota. */ 6230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 6248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 6250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 6260dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6280dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 62926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaUnique); 6300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 63126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 6320dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 6335ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 6340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 6350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.push_front(QuotaInfo(ifaceName, maxBytes, 0)); 6380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } else { 6408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 6410dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 6425ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", iface); 6430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 6440dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall it->quota = maxBytes; 6460dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return 0; 6480dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fail: 6500dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* 6510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 6520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * rules in the kernel to see which ones need cleaning up. 6530dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 6540dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * which resets everything. 6550dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 6560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall removeInterfaceSharedQuota(ifn); 6570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 6580dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 6590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceSharedQuota(int64_t *bytes) { 6618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return getInterfaceQuota("shared", bytes); 6628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceQuota(const char *costName, int64_t *bytes) { 6658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 6668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 6678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int scanRes; 6688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", costName); 6708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "r"); 6718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 6728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 6735ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Reading quota %s failed (%s)", costName, strerror(errno)); 6748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall scanRes = fscanf(fp, "%lld", bytes); 6773fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("Read quota res=%d bytes=%lld", scanRes, *bytes); 6788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 6798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return scanRes == 1 ? 0 : -1; 6808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6820dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::removeInterfaceQuota(const char *iface) { 6830dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6840dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 6850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 68626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 68726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 68826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 6890dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6915ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 69226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 69326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 69426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 69526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 6960dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6970dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 6988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 6990dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 7000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 7035ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 7040dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 7050dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7060dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* This also removes the quota command of CostlyIface chain. */ 70826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaUnique); 7090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7100dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaIfaces.erase(it); 7110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 7130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 7148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::updateQuota(const char *quotaName, int64_t bytes) { 7168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 7178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 7188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", quotaName); 7208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "w"); 7218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 7228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 7235ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Updating quota %s failed (%s)", quotaName, strerror(errno)); 7248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fprintf(fp, "%lld\n", bytes); 7278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 7288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return 0; 7298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesAlertCmd(IptOp op, const char *alertName, int64_t bytes) { 7328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 7348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 7358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall switch (op) { 7378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 7388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 7398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 7418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 7428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 7448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 7458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 7468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 74992009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_INPUT", 750c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 7518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 7528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 75392009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_OUTPUT", 754c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 7558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 7568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 7578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 7588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 760c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::runIptablesAlertFwdCmd(IptOp op, const char *alertName, int64_t bytes) { 761c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 762c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *opFlag; 7638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 764c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 765c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall switch (op) { 766c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpInsert: 767c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-I"; 768c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 769c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpReplace: 770c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-R"; 771c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 772c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall default: 773c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpDelete: 774c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-D"; 775c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 776c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 777c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 77892009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_FORWARD", 779c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 780c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 781c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall free(alertQuotaCmd); 782c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 783c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 784c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 785c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlert(int64_t bytes) { 786c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 7878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 7905ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 7918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 7948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, bytes); 7958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 7968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpInsert, alertName, bytes); 797c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 7983fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlert for %d tether", globalAlertTetherCount); 799c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpInsert, alertName, bytes); 800c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 8018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = bytes; 8038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 806c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlertInForwardChain(void) { 807c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 808c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 809c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 810c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount++; 8113fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlertInForwardChain(): %d tether", globalAlertTetherCount); 812c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 813c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 814c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 815c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but this is not the 1st 816c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tether, we are also done. 817c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 818c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount != 1) { 819c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 820c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 821c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 822c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only add the rule if this was the 1st tether added. */ 823c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpInsert, alertName, globalAlertBytes); 824c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 825c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 826c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 8278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeGlobalAlert(void) { 8288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 829c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 8308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 8318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!globalAlertBytes) { 8335ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 8348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpDelete, alertName, globalAlertBytes); 837c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 838c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 839c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 8408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = 0; 8418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 844c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::removeGlobalAlertInForwardChain(void) { 845c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 846c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 847c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 848c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertTetherCount) { 8495ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 850c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return -1; 851c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 852c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 853c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount--; 854c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 855c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 856c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but there are more 857c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tethers, we are also done. 858c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 859c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount >= 1) { 860c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 861c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 862c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 863c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only detete the rule if this was the last tether removed. */ 864c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 865c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 866c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 867c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 8688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setSharedAlert(int64_t bytes) { 8698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!sharedQuotaBytes) { 8705ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior shared quota set to set an alert"); 8718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 8745ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 8758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert("shared", bytes, &sharedAlertBytes); 8788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeSharedAlert(void) { 8818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert("shared", &sharedAlertBytes); 8828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setInterfaceAlert(const char *iface, int64_t bytes) { 8858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 8868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 8885ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 8898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 8928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 8938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 8948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 8975ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior interface quota set to set an alert"); 8988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert(iface, bytes, &it->alert); 9028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeInterfaceAlert(const char *iface) { 9058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 9068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 9088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 9098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 9108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 9135ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for interface %s", iface); 9148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert(iface, &it->alert); 9188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setCostlyAlert(const char *costName, int64_t bytes, int64_t *alertBytes) { 9218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 9228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainNameAndPos; 9238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 9258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9275ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 9318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (*alertBytes) { 9328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, *alertBytes); 9338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 9348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainNameAndPos, "costly_%s %d", costName, ALERT_RULE_POS_IN_COSTLY_CHAIN); 93592009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-I", chainNameAndPos, bytes, alertName); 9368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 9378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 9388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainNameAndPos); 9398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = bytes; 9418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 9428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 9438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeCostlyAlert(const char *costName, int64_t *alertBytes) { 9468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 9478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainName; 9488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 9498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 9528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!*alertBytes) { 9535ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for %s alert", costName); 9548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainName, "costly_%s", costName); 95892009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-D", chainName, *alertBytes, alertName); 9598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 9608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 9618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainName); 9628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = 0; 9648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 9658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 9668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 967db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 968db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 969db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Parse the ptks and bytes out of: 9700031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Chain FORWARD (policy RETURN 0 packets, 0 bytes) 971db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * pkts bytes target prot opt in out source destination 9720031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * 0 0 RETURN all -- rmnet0 wlan0 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 973db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 0 0 DROP all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 state INVALID 9740031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * 0 0 RETURN all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 975db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 976db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 977a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrallint BandwidthController::parseForwardChainStats(TetherStats &stats, FILE *fp, 978a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall std::string &extraProcessingInfo) { 979db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 980db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char lineBuffer[MAX_IPT_OUTPUT_LINE_LEN]; 981db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface0[MAX_IPT_OUTPUT_LINE_LEN]; 982db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface1[MAX_IPT_OUTPUT_LINE_LEN]; 983db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char rest[MAX_IPT_OUTPUT_LINE_LEN]; 984db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 985db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *buffPtr; 986db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int64_t packets, bytes; 987db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 988db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall while (NULL != (buffPtr = fgets(lineBuffer, MAX_IPT_OUTPUT_LINE_LEN, fp))) { 989db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Clean up, so a failed parse can still print info */ 990db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0[0] = iface1[0] = rest[0] = packets = bytes = 0; 9910031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = sscanf(buffPtr, "%lld %lld RETURN all -- %s %s 0.%s", 992db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall &packets, &bytes, iface0, iface1, rest); 9933fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("parse res=%d iface0=<%s> iface1=<%s> pkts=%lld bytes=%lld rest=<%s> orig line=<%s>", res, 994db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0, iface1, packets, bytes, rest, buffPtr); 995a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += buffPtr; 996a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall 997db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (res != 5) { 998db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall continue; 999db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1000db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if ((stats.ifaceIn == iface0) && (stats.ifaceOut == iface1)) { 10013fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1002db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxPackets = packets; 1003db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxBytes = bytes; 1004db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } else if ((stats.ifaceOut == iface0) && (stats.ifaceIn == iface1)) { 10053fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("iface_in=%s iface_out=%s tx_bytes=%lld tx_packets=%lld ", iface1, iface0, bytes, packets); 1006db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txPackets = packets; 1007db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txBytes = bytes; 1008db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1009db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1010db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Failure if rx or tx was not found */ 1011db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return (stats.rxBytes == -1 || stats.txBytes == -1) ? -1 : 0; 1012db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1013db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1014db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1015db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallchar *BandwidthController::TetherStats::getStatsLine(void) { 1016db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *msg; 1017db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall asprintf(&msg, "%s %s %lld %lld %lld %lld", ifaceIn.c_str(), ifaceOut.c_str(), 1018db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall rxBytes, rxPackets, txBytes, txPackets); 1019db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return msg; 1020db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1021db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1022a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrallint BandwidthController::getTetherStats(TetherStats &stats, std::string &extraProcessingInfo) { 1023db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 1024db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall std::string fullCmd; 1025db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall FILE *iptOutput; 1026db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall const char *cmd; 1027db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1028db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (stats.rxBytes != -1 || stats.txBytes != -1) { 10295ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Unexpected input stats. Byte counts should be -1."); 1030db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 1031db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1032db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1033db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* 1034db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Why not use some kind of lib to talk to iptables? 1035db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Because the only libs are libiptc and libip6tc in iptables, and they are 1036db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * not easy to use. They require the known iptables match modules to be 1037db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * preloaded/linked, and require apparently a lot of wrapper code to get 1038db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * the wanted info. 1039db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 1040db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall fullCmd = IPTABLES_PATH; 10410031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall fullCmd += " -nvx -L natctrl_FORWARD"; 1042db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iptOutput = popen(fullCmd.c_str(), "r"); 1043db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (!iptOutput) { 10445ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed to run %s err=%s", fullCmd.c_str(), strerror(errno)); 1045a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += "Failed to run iptables."; 1046db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 1047db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1048a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall res = parseForwardChainStats(stats, iptOutput, extraProcessingInfo); 1049db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall pclose(iptOutput); 1050db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1051db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Currently NatController doesn't do ipv6 tethering, so we are done. */ 1052db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return res; 1053db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1054