BandwidthController.cpp revision 7e51cde19af016456fff750f745db8132f3124a5
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 17e478873947f995e44e8c559342462c177a420ae0JP 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" 47baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall#include "NatController.h" /* For LOCAL_TETHER_COUNTERS_CHAIN */ 48baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall#include "ResponseCode.h" 494a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 50db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* Alphabetical */ 5192009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall#define ALERT_IPT_TEMPLATE "%s %s -m quota2 ! --quota %lld --name %s" 52c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallconst char BandwidthController::ALERT_GLOBAL_NAME[] = "globalAlert"; 538e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_INPUT = "bw_INPUT"; 548e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_FORWARD = "bw_FORWARD"; 558e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_OUTPUT = "bw_OUTPUT"; 568e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_RAW_PREROUTING = "bw_raw_PREROUTING"; 578e188ed5c989ddcc07f0f5e9839493c22d17e7b6Jeff Sharkeyconst char* BandwidthController::LOCAL_MANGLE_POSTROUTING = "bw_mangle_POSTROUTING"; 58db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_ARGS = 32; 59db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_LEN = 1024; 60db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IFACENAME_LEN = 64; 61db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IPT_OUTPUT_LINE_LEN = 256; 62db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/** 644a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Some comments about the rules: 654a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * Ordering 664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - when an interface is marked as costly it should be INSERTED into the INPUT/OUTPUT chains. 6729e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * E.g. "-I bw_INPUT -i rmnet0 --jump costly" 687e51cde19af016456fff750f745db8132f3124a5JP Abgrall * - quota'd rules in the costly chain should be before bw_penalty_box lookups. 697e51cde19af016456fff750f745db8132f3124a5JP Abgrall * - bw_happy_box rejects everything by default. 7029e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * - the qtaguid counting is done at the end of the bw_INPUT/bw_OUTPUT user chains. 714a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 724a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * global quota vs per interface quota 734a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - global quota for all costly interfaces uses a single costly chain: 744a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . initial rules 757e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -N bw_costly_shared 767e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_INPUT -i iface0 --jump bw_costly_shared 777e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump bw_costly_shared 787e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_costly_shared -m quota \! --quota 500000 \ 79bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 807e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -A bw_costly_shared --jump bw_penalty_box 81e478873947f995e44e8c559342462c177a420ae0JP Abgrall * If the happy box is enabled, 827e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -A bw_penalty_box --jump bw_happy_box 838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall * 844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . adding a new iface to this, E.g.: 857e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_INPUT -i iface1 --jump bw_costly_shared 867e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_OUTPUT -o iface1 --jump bw_costly_shared 874a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 884a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota per interface. This is achieve by having "costly" chains per quota. 894a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g. adding a new costly interface iface0 with its own quota: 907e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -N bw_costly_iface0 917e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_INPUT -i iface0 --jump bw_costly_iface0 927e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump bw_costly_iface0 937e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -A bw_costly_iface0 -m quota \! --quota 500000 \ 94e478873947f995e44e8c559342462c177a420ae0JP Abgrall * --jump REJECT --reject-with icmp-port-unreachable 957e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -A bw_costly_iface0 --jump bw_penalty_box 964a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 977e51cde19af016456fff750f745db8132f3124a5JP Abgrall * * bw_penalty_box handling: 987e51cde19af016456fff750f745db8132f3124a5JP Abgrall * - only one bw_penalty_box for all interfaces 997e51cde19af016456fff750f745db8132f3124a5JP Abgrall * E.g Adding an app, it has to preserve the appened bw_happy_box, so "-I": 1007e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_penalty_box -m owner --uid-owner app_3 \ 101e478873947f995e44e8c559342462c177a420ae0JP Abgrall * --jump REJECT --reject-with icmp-port-unreachable 102e478873947f995e44e8c559342462c177a420ae0JP Abgrall * 1037e51cde19af016456fff750f745db8132f3124a5JP Abgrall * * bw_happy_box handling: 1047e51cde19af016456fff750f745db8132f3124a5JP Abgrall * - The bw_happy_box goes at the end of the penalty box. 105e478873947f995e44e8c559342462c177a420ae0JP Abgrall * E.g Adding a happy app, 1067e51cde19af016456fff750f745db8132f3124a5JP Abgrall * iptables -I bw_happy_box -m owner --uid-owner app_3 \ 107e478873947f995e44e8c559342462c177a420ae0JP Abgrall * --jump RETURN 1084a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 1090031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_FLUSH_COMMANDS[] = { 1100031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 1110031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Cleanup rules. 1127e51cde19af016456fff750f745db8132f3124a5JP Abgrall * Should normally include bw_costly_<iface>, but we rely on the way they are setup 1130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * to allow coexistance. 11439f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall */ 1150031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_INPUT", 1160031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_OUTPUT", 1170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_FORWARD", 1187e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-F bw_happy_box", 1197e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-F bw_penalty_box", 1207e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-F bw_costly_shared", 121f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 122e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Just a couple that are the most common. */ 1237e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-F bw_costly_rmnet0", 1247e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-F bw_costly_wlan0", 125e478873947f995e44e8c559342462c177a420ae0JP Abgrall 126f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -F bw_raw_PREROUTING", 127f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -F bw_mangle_POSTROUTING", 1280031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall}; 1290031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 1300031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall/* The cleanup commands assume flushing has been done. */ 1310031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_CLEANUP_COMMANDS[] = { 1327e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-X bw_happy_box", 1337e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-X bw_penalty_box", 1347e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-X bw_costly_shared", 135e478873947f995e44e8c559342462c177a420ae0JP Abgrall 136e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Just a couple that are the most common. */ 1377e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-X bw_costly_rmnet0", 1387e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-X bw_costly_wlan0", 1390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1404a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 141db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_SETUP_COMMANDS[] = { 1427e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-N bw_happy_box", 1437e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-N bw_penalty_box", 1447e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-N bw_costly_shared", 1450dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1460dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 147db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_BASIC_ACCOUNTING_COMMANDS[] = { 1480031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_INPUT -m owner --socket-exists", /* This is a tracking rule. */ 1490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 1500031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_OUTPUT -m owner --socket-exists", /* This is a tracking rule. */ 1510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 1527e51cde19af016456fff750f745db8132f3124a5JP Abgrall "-A bw_costly_shared --jump bw_penalty_box", 153f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 15492009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall "-t raw -A bw_raw_PREROUTING -m owner --socket-exists", /* This is a tracking rule. */ 15592009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall "-t mangle -A bw_mangle_POSTROUTING -m owner --socket-exists", /* This is a tracking rule. */ 1560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1574a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1584a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP AbgrallBandwidthController::BandwidthController(void) { 1594a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 1604a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 161a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrallint BandwidthController::runIpxtablesCmd(const char *cmd, IptJumpOp jumpHandling, 162ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureHandling) { 1630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 1648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 1653fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runIpxtablesCmd(cmd=%s)", cmd); 166a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIptablesCmd(cmd, jumpHandling, IptIpV4, failureHandling); 167a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIptablesCmd(cmd, jumpHandling, IptIpV6, failureHandling); 1680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 1690dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 1700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 17126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::StrncpyAndCheck(char *buffer, const char *src, size_t buffSize) { 17226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 17326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall memset(buffer, '\0', buffSize); // strncpy() is not filling leftover with '\0' 17426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall strncpy(buffer, src, buffSize); 17526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return buffer[buffSize - 1]; 17626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall} 17726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 178a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrallint BandwidthController::runIptablesCmd(const char *cmd, IptJumpOp jumpHandling, 179ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptIpVer iptVer, IptFailureLog failureHandling) { 18026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall char buffer[MAX_CMD_LEN]; 1814a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall const char *argv[MAX_CMD_ARGS]; 18226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall int argc = 0; 1834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *next = buffer; 1844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *tmp; 18511b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall int res; 18614150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand int status = 0; 1874a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1880dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string fullCmd = cmd; 18926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 190a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall switch (jumpHandling) { 191a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall case IptJumpReject: 192340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall /* 193340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall * Must be carefull what one rejects with, as uper layer protocols will just 194340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall * keep on hammering the device until the number of retries are done. 195340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall * For port-unreachable (default), TCP should consider as an abort (RFC1122). 196340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall */ 197340d5ccf04d4d441d8dd1788a7925d0313038b7cJP Abgrall fullCmd += " --jump REJECT"; 198a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall break; 199a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall case IptJumpReturn: 200a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall fullCmd += " --jump RETURN"; 201a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall break; 202a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall case IptJumpNoAdd: 203a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall break; 2040dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 2050dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 20611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, " "); 20711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, iptVer == IptIpV4 ? IPTABLES_PATH : IP6TABLES_PATH); 2084a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 20914150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand if (StrncpyAndCheck(buffer, fullCmd.c_str(), sizeof(buffer))) { 21014150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand ALOGE("iptables command too long"); 21114150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand return -1; 21214150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand } 21314150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand 21414150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argc = 0; 21514150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand while ((tmp = strsep(&next, " "))) { 21614150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argv[argc++] = tmp; 21714150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand if (argc >= MAX_CMD_ARGS) { 21814150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand ALOGE("iptables argument overflow"); 2194a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 2204a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 22114150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand } 222fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 22314150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand argv[argc] = NULL; 22414150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand res = android_fork_execvp(argc, (char **)argv, &status, false, 22514150215fcd9060c25a25930e85057df5904f6f6Rom Lemarchand failureHandling == IptFailShow); 226c8dc63b14f5bcef34a23061c17d3bbe66df51429JP Abgrall res = res || !WIFEXITED(status) || WEXITSTATUS(status); 227c8dc63b14f5bcef34a23061c17d3bbe66df51429JP Abgrall if (res && failureHandling == IptFailShow) { 228c8dc63b14f5bcef34a23061c17d3bbe66df51429JP Abgrall ALOGE("runIptablesCmd(): res=%d status=%d failed %s", res, status, 229c8dc63b14f5bcef34a23061c17d3bbe66df51429JP Abgrall fullCmd.c_str()); 23011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 23111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return res; 2324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2340031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::setupIptablesHooks(void) { 2350031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2360031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* Some of the initialCommands are allowed to fail */ 2370031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2380031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 2390031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2400031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_CLEANUP_COMMANDS) / sizeof(char*), 2410031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_CLEANUP_COMMANDS, RunCmdFailureOk); 2420031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2430031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_SETUP_COMMANDS) / sizeof(char*), 2440031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_SETUP_COMMANDS, RunCmdFailureBad); 2450031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2460031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2470031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall} 2480031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2490031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::enableBandwidthControl(bool force) { 250fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res; 2510031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall char value[PROPERTY_VALUE_MAX]; 2520031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2530031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!force) { 2540031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall property_get("persist.bandwidth.enable", value, "1"); 2550031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!strcmp(value, "0")) 2560031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2570031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall } 2588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 259db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Let's pretend we started from scratch ... */ 2608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaIfaces.clear(); 2618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.clear(); 2628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall naughtyAppUids.clear(); 263e478873947f995e44e8c559342462c177a420ae0JP Abgrall niceAppUids.clear(); 264db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall globalAlertBytes = 0; 265c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount = 0; 266db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall sharedQuotaBytes = sharedAlertBytes = 0; 267db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2680031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2690031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 270db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2710031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res |= runCommands(sizeof(IPT_BASIC_ACCOUNTING_COMMANDS) / sizeof(char*), 272db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_BASIC_ACCOUNTING_COMMANDS, RunCmdFailureBad); 2738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 274fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 2754a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2764a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2774a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2784a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallint BandwidthController::disableBandwidthControl(void) { 2790031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2800031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 281fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 2824a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runCommands(int numCommands, const char *commands[], 2858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall RunCmdErrHandling cmdErrHandling) { 286fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 287ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureLogging = IptFailShow; 288ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall if (cmdErrHandling == RunCmdFailureOk) { 289ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall failureLogging = IptFailHide; 290ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall } 2913fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runCommands(): %d commands", numCommands); 292fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (int cmdNum = 0; cmdNum < numCommands; cmdNum++) { 293a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res = runIpxtablesCmd(commands[cmdNum], IptJumpNoAdd, failureLogging); 2940031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (res && cmdErrHandling != RunCmdFailureOk) 295fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 296fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 2970031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 298fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 299fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 300a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrallstd::string BandwidthController::makeIptablesSpecialAppCmd(IptOp op, int uid, const char *chain) { 301fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 3028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 3038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 304fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 305fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 3068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 3078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 3088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 309109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall case IptOpAppend: 310a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall ALOGE("Append op not supported for %s uids", chain); 311a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res = ""; 312a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall return res; 313109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall break; 3148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 3158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 3168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 3188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 3198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 3208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 321fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 322a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall asprintf(&buff, "%s %s -m owner --uid-owner %d", opFlag, chain, uid); 3238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 3248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 325fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 326fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 327fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 328e478873947f995e44e8c559342462c177a420ae0JP Abgrallint BandwidthController::enableHappyBox(void) { 329e478873947f995e44e8c559342462c177a420ae0JP Abgrall char cmd[MAX_CMD_LEN]; 330e478873947f995e44e8c559342462c177a420ae0JP Abgrall int res = 0; 331e478873947f995e44e8c559342462c177a420ae0JP Abgrall 332e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* 333e478873947f995e44e8c559342462c177a420ae0JP Abgrall * We tentatively delete before adding, which helps recovering 334e478873947f995e44e8c559342462c177a420ae0JP Abgrall * from bad states (e.g. netd died). 335e478873947f995e44e8c559342462c177a420ae0JP Abgrall */ 336e478873947f995e44e8c559342462c177a420ae0JP Abgrall 337e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Should not exist, but ignore result if already there. */ 3387e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-N bw_happy_box"); 339e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 340e478873947f995e44e8c559342462c177a420ae0JP Abgrall 341e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Should be empty, but clear in case something was wrong. */ 342e478873947f995e44e8c559342462c177a420ae0JP Abgrall niceAppUids.clear(); 3437e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-F bw_happy_box"); 344e478873947f995e44e8c559342462c177a420ae0JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 345e478873947f995e44e8c559342462c177a420ae0JP Abgrall 3467e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_penalty_box -j bw_happy_box"); 347e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 3487e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-A bw_penalty_box -j bw_happy_box"); 349e478873947f995e44e8c559342462c177a420ae0JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 350e478873947f995e44e8c559342462c177a420ae0JP Abgrall 351e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Reject. Defaulting to prot-unreachable */ 3527e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_happy_box -j REJECT"); 353e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 3547e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-A bw_happy_box -j REJECT"); 355e478873947f995e44e8c559342462c177a420ae0JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 356e478873947f995e44e8c559342462c177a420ae0JP Abgrall 357e478873947f995e44e8c559342462c177a420ae0JP Abgrall return res; 358e478873947f995e44e8c559342462c177a420ae0JP Abgrall} 359e478873947f995e44e8c559342462c177a420ae0JP Abgrall 360e478873947f995e44e8c559342462c177a420ae0JP Abgrallint BandwidthController::disableHappyBox(void) { 361e478873947f995e44e8c559342462c177a420ae0JP Abgrall char cmd[MAX_CMD_LEN]; 362e478873947f995e44e8c559342462c177a420ae0JP Abgrall 363e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Best effort */ 3647e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_penalty_box -j bw_happy_box"); 365e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 366e478873947f995e44e8c559342462c177a420ae0JP Abgrall niceAppUids.clear(); 3677e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-F bw_happy_box"); 368e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 3697e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-X bw_happy_box"); 370e478873947f995e44e8c559342462c177a420ae0JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd); 371e478873947f995e44e8c559342462c177a420ae0JP Abgrall 372e478873947f995e44e8c559342462c177a420ae0JP Abgrall return 0; 373e478873947f995e44e8c559342462c177a420ae0JP Abgrall} 374e478873947f995e44e8c559342462c177a420ae0JP Abgrall 375fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::addNaughtyApps(int numUids, char *appUids[]) { 376a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall return manipulateNaughtyApps(numUids, appUids, SpecialAppOpAdd); 377fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 378fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 379fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeNaughtyApps(int numUids, char *appUids[]) { 380a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall return manipulateNaughtyApps(numUids, appUids, SpecialAppOpRemove); 381fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 382fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 383e478873947f995e44e8c559342462c177a420ae0JP Abgrallint BandwidthController::addNiceApps(int numUids, char *appUids[]) { 384e478873947f995e44e8c559342462c177a420ae0JP Abgrall return manipulateNiceApps(numUids, appUids, SpecialAppOpAdd); 385e478873947f995e44e8c559342462c177a420ae0JP Abgrall} 386e478873947f995e44e8c559342462c177a420ae0JP Abgrall 387e478873947f995e44e8c559342462c177a420ae0JP Abgrallint BandwidthController::removeNiceApps(int numUids, char *appUids[]) { 388e478873947f995e44e8c559342462c177a420ae0JP Abgrall return manipulateNiceApps(numUids, appUids, SpecialAppOpRemove); 389e478873947f995e44e8c559342462c177a420ae0JP Abgrall} 390e478873947f995e44e8c559342462c177a420ae0JP Abgrall 391a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrallint BandwidthController::manipulateNaughtyApps(int numUids, char *appStrUids[], SpecialAppOp appOp) { 3927e51cde19af016456fff750f745db8132f3124a5JP Abgrall return manipulateSpecialApps(numUids, appStrUids, "bw_penalty_box", naughtyAppUids, IptJumpReject, appOp); 393a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall} 394a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall 395e478873947f995e44e8c559342462c177a420ae0JP Abgrallint BandwidthController::manipulateNiceApps(int numUids, char *appStrUids[], SpecialAppOp appOp) { 3967e51cde19af016456fff750f745db8132f3124a5JP Abgrall return manipulateSpecialApps(numUids, appStrUids, "bw_happy_box", niceAppUids, IptJumpReturn, appOp); 397e478873947f995e44e8c559342462c177a420ae0JP Abgrall} 398e478873947f995e44e8c559342462c177a420ae0JP Abgrall 399a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall 400a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrallint BandwidthController::manipulateSpecialApps(int numUids, char *appStrUids[], 401a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall const char *chain, 402a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall std::list<int /*appUid*/> &specialAppUids, 403a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall IptJumpOp jumpHandling, SpecialAppOp appOp) { 404a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall 405fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall char cmd[MAX_CMD_LEN]; 406fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int uidNum; 40726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *failLogTemplate; 40826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall IptOp op; 409fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int appUids[numUids]; 410a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall std::string iptCmd; 411b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall std::list<int /*uid*/>::iterator it; 4128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 41326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (appOp) { 414a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall case SpecialAppOpAdd: 4158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpInsert; 416af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall failLogTemplate = "Failed to add app uid %s(%d) to %s."; 4178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 418a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall case SpecialAppOpRemove: 4198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpDelete; 420af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall failLogTemplate = "Failed to delete app uid %s(%d) from %s box."; 4218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 4220031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 4230031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected app Op %d", appOp); 4240031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 42526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 42626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 427fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 428af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall char *end; 429af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall appUids[uidNum] = strtoul(appStrUids[uidNum], &end, 0); 430af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall if (*end || !*appStrUids[uidNum]) { 431af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall ALOGE(failLogTemplate, appStrUids[uidNum], appUids[uidNum], chain); 432fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_parse; 433fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 434fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 435fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 436fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 437b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall int uid = appUids[uidNum]; 438a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall for (it = specialAppUids.begin(); it != specialAppUids.end(); it++) { 439b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (*it == uid) 440b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall break; 441b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 442a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall bool found = (it != specialAppUids.end()); 443b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 444a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall if (appOp == SpecialAppOpRemove) { 445b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (!found) { 446b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("No such appUid %d to remove", uid); 447b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 448b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 449a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall specialAppUids.erase(it); 450b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } else { 451b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (found) { 452b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("appUid %d exists already", uid); 453b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 454b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 455a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall specialAppUids.push_front(uid); 456b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 457b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 458a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall iptCmd = makeIptablesSpecialAppCmd(op, uid, chain); 459a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall if (runIpxtablesCmd(iptCmd.c_str(), jumpHandling)) { 460af476f7b659beff8315a83f094ce697c5179dae6JP Abgrall ALOGE(failLogTemplate, appStrUids[uidNum], uid, chain); 461fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_with_uidNum; 462fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 463fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 464fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 465fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 46626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_with_uidNum: 467fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall /* Try to remove the uid that failed in any case*/ 468a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall iptCmd = makeIptablesSpecialAppCmd(IptOpDelete, appUids[uidNum], chain); 469a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall runIpxtablesCmd(iptCmd.c_str(), jumpHandling); 47026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_parse: 47126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 4724a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 4734a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 47426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallstd::string BandwidthController::makeIptablesQuotaCmd(IptOp op, const char *costName, int64_t quota) { 475fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 4768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 4778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 4780dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4793fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("makeIptablesQuotaCmd(%d, %lld)", op, quota); 4800dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 481fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 4828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 4838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 4848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 485109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall case IptOpAppend: 486109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall opFlag = "-A"; 487109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall break; 4888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 4898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 4908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 4918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 4928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 4938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 4948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 495fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 4968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 497bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall // The requried IP version specific --jump REJECT ... will be added later. 4987e51cde19af016456fff750f745db8132f3124a5JP Abgrall asprintf(&buff, "%s bw_costly_%s -m quota2 ! --quota %lld --name %s", opFlag, costName, quota, 4998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall costName); 5008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 5018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 5020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 5030dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 5040dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 50526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::prepCostlyIface(const char *ifn, QuotaType quotaType) { 5060dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 5070031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall int res = 0, res1, res2; 5088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int ruleInsertPos = 1; 5090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 5100dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 5110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* The "-N costly" is created upfront, no need to handle it here. */ 51326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 51426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 5157e51cde19af016456fff750f745db8132f3124a5JP Abgrall costString = "bw_costly_"; 5160dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 5170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 5180031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 5197e51cde19af016456fff750f745db8132f3124a5JP Abgrall * Flush the bw_costly_<iface> is allowed to fail in case it didn't exist. 5200031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Creating a new one is allowed to fail in case it existed. 5210031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * This helps with netd restarts. 5220031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall */ 5230031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 524a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res1 = runIpxtablesCmd(cmd, IptJumpNoAdd, IptFailHide); 5250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-N %s", costCString); 526a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res2 = runIpxtablesCmd(cmd, IptJumpNoAdd, IptFailHide); 5270031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = (res1 && res2) || (!res1 && !res2); 5280031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 5297e51cde19af016456fff750f745db8132f3124a5JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s -j bw_penalty_box", costCString); 530a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 53126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 53226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 5337e51cde19af016456fff750f745db8132f3124a5JP Abgrall costCString = "bw_costly_shared"; 53426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 5350031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 5360031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 5370031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 5380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 5418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* The alert rule comes 1st */ 5428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ruleInsertPos = 2; 5438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 5440031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 5450031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 546a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd, IptFailHide); 5470031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 5480031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_INPUT %d -i %s --jump %s", ruleInsertPos, ifn, costCString); 549a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 5500031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 5510031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 552a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall runIpxtablesCmd(cmd, IptJumpNoAdd, IptFailHide); 5530031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 5540031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_OUTPUT %d -o %s --jump %s", ruleInsertPos, ifn, costCString); 555a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 5560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 5570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 5580dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 55926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::cleanupCostlyIface(const char *ifn, QuotaType quotaType) { 5600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 5610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 5620dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 5630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 5640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 56526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 56626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 5677e51cde19af016456fff750f745db8132f3124a5JP Abgrall costString = "bw_costly_"; 5680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 5690dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 57026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 57126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 5727e51cde19af016456fff750f745db8132f3124a5JP Abgrall costCString = "bw_costly_shared"; 57326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 5740031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 5750031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 5760031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 5770dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5780dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5790031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 580a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 5810031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 582a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 5830dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5847e51cde19af016456fff750f745db8132f3124a5JP Abgrall /* The "-N bw_costly_shared" is created upfront, no need to handle it here. */ 58526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (quotaType == QuotaUnique) { 5860dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 587a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 588a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall snprintf(cmd, sizeof(cmd), "-X %s", costCString); 589a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(cmd, IptJumpNoAdd); 590fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 591fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 592fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 5934a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5940dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceSharedQuota(const char *iface, int64_t maxBytes) { 5954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char cmd[MAX_CMD_LEN]; 5964a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 597fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 59826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 5998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::string ifaceName; 6008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ; 601bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 60226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<std::string>::iterator it; 6034a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 6058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 6065ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 6078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 60926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6105ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 61126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 61226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 61326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 6144a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6154a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (maxBytes == -1) { 616fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return removeInterfaceSharedQuota(ifn); 6174a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 6184a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6194a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* Insert ingress quota. */ 6200dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 6210dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 622fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 6234a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 624fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 6250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 62626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaShared); 6270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 6280dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 629a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptJumpReject); 6304a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (res) { 6315ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 632fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 6334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 634fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 635fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 6360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.push_front(ifaceName); 637fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 638fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 639fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 640fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (maxBytes != sharedQuotaBytes) { 6418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 642fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (res) { 6435ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", costName); 644fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 645fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 646fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 6474a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 6484a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return 0; 649fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 650fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall fail: 6514a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* 6524a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 6534a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * rules in the kernel to see which ones need cleaning up. 654fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 655fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * which resets everything. 6564a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 657fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall removeInterfaceSharedQuota(ifn); 6584a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 6594a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 6604a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall/* It will also cleanup any shared alerts */ 662fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeInterfaceSharedQuota(const char *iface) { 6634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 664fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 66526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 6660dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::list<std::string>::iterator it; 667bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 6684a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6705ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 67126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 67226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 6738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ifaceName = ifn; 67426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 6750dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 6760dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 677fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 6784a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 6790dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 6805ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 681fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return -1; 6824a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 683fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 68426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaShared); 6850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.erase(it); 686fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 6870dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 688fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string quotaCmd; 689bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpDelete, costName, sharedQuotaBytes); 690a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptJumpReject); 6918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaBytes = 0; 6928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (sharedAlertBytes) { 6938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall removeSharedAlert(); 6948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedAlertBytes = 0; 6958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 696fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 6974a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return res; 6984a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 6990dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceQuota(const char *iface, int64_t maxBytes) { 7010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 7020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 70326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 70426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 70526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 70626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 7070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 7098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 7105ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 7118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (maxBytes == -1) { 71426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return removeInterfaceQuota(iface); 7150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7160dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 7185ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 71926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 72026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 72126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 72226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 72326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 7240dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Insert ingress quota. */ 7250dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 7268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 7270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 7280dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7290dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 731e478873947f995e44e8c559342462c177a420ae0JP Abgrall /* Preparing the iface adds a penalty/happy box check */ 73226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaUnique); 733baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall /* 734e478873947f995e44e8c559342462c177a420ae0JP Abgrall * The rejecting quota limit should go after the penalty/happy box checks 735baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * or else a naughty app could just eat up the quota. 736baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * So we append here. 737baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall */ 738109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpAppend, costName, maxBytes); 739a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptJumpReject); 7400dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 7415ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 7420dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 7430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7440dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.push_front(QuotaInfo(ifaceName, maxBytes, 0)); 7460dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } else { 7488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 7490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 7505ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", iface); 7510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 7520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall it->quota = maxBytes; 7540dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7550dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return 0; 7560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fail: 7580dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* 7590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 7600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * rules in the kernel to see which ones need cleaning up. 7610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 7620dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * which resets everything. 7630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 7640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall removeInterfaceSharedQuota(ifn); 7650dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 7660dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 7670dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceSharedQuota(int64_t *bytes) { 7698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return getInterfaceQuota("shared", bytes); 7708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceQuota(const char *costName, int64_t *bytes) { 7738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 7748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 7758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int scanRes; 7768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", costName); 7788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "r"); 7798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 7808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 7815ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Reading quota %s failed (%s)", costName, strerror(errno)); 7828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall scanRes = fscanf(fp, "%lld", bytes); 7853fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("Read quota res=%d bytes=%lld", scanRes, *bytes); 7868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 7878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return scanRes == 1 ? 0 : -1; 7888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7900dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::removeInterfaceQuota(const char *iface) { 7910dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7920dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 7930dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 79426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 79526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 79626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 7970dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 7995ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 80026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 80126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 80226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 80326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 8040dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 8050dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 8068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 8070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 8080dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 8090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 8100dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 8115ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 8120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 8130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 8140dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 8150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* This also removes the quota command of CostlyIface chain. */ 81626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaUnique); 8170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 8180dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaIfaces.erase(it); 8190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 8200dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 8210dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 8228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::updateQuota(const char *quotaName, int64_t bytes) { 8248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 8258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 8268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", quotaName); 8288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "w"); 8298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 8308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 8315ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Updating quota %s failed (%s)", quotaName, strerror(errno)); 8328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fprintf(fp, "%lld\n", bytes); 8358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 8368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return 0; 8378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesAlertCmd(IptOp op, const char *alertName, int64_t bytes) { 8408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 8418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 8428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 8438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall switch (op) { 8458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 8468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 8478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 848109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall case IptOpAppend: 849109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall opFlag = "-A"; 850109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall break; 8518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 8528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 8538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 8548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 8558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 8568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 8578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 8588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 86092009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_INPUT", 861c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 862a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptJumpNoAdd); 8638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 86492009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_OUTPUT", 865c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 866a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptJumpNoAdd); 8678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 8688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 871c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::runIptablesAlertFwdCmd(IptOp op, const char *alertName, int64_t bytes) { 872c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 873c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *opFlag; 8748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 875c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 876c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall switch (op) { 877c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpInsert: 878c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-I"; 879c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 880109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall case IptOpAppend: 881109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall opFlag = "-A"; 882109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall break; 883c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpReplace: 884c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-R"; 885c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 886c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall default: 887c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpDelete: 888c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-D"; 889c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 890c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 891c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 89292009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, opFlag, "bw_FORWARD", 893c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 894a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res = runIpxtablesCmd(alertQuotaCmd, IptJumpNoAdd); 895c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall free(alertQuotaCmd); 896c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 897c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 898c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 899c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlert(int64_t bytes) { 900c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 9018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9045ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 9088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, bytes); 9098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 9108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpInsert, alertName, bytes); 911c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 9123fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlert for %d tether", globalAlertTetherCount); 913c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpInsert, alertName, bytes); 914c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 9158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = bytes; 9178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 9188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 920c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlertInForwardChain(void) { 921c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 922c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 923c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 924c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount++; 9253fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlertInForwardChain(): %d tether", globalAlertTetherCount); 926c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 927c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 928c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 929c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but this is not the 1st 930c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tether, we are also done. 931c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 932c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount != 1) { 933c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 934c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 935c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 936c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only add the rule if this was the 1st tether added. */ 937c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpInsert, alertName, globalAlertBytes); 938c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 939c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 940c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 9418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeGlobalAlert(void) { 9428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 943c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 9448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!globalAlertBytes) { 9475ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 9488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpDelete, alertName, globalAlertBytes); 951c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 952c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 953c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 9548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = 0; 9558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 9568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 958c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::removeGlobalAlertInForwardChain(void) { 959c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 960c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 961c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 962c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertTetherCount) { 9635ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 964c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return -1; 965c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 966c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 967c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount--; 968c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 969c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 970c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but there are more 971c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tethers, we are also done. 972c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 973c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount >= 1) { 974c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 975c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 976c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 977c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only detete the rule if this was the last tether removed. */ 978c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 979c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 980c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 981c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 9828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setSharedAlert(int64_t bytes) { 9838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!sharedQuotaBytes) { 9845ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior shared quota set to set an alert"); 9858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9885ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert("shared", bytes, &sharedAlertBytes); 9928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeSharedAlert(void) { 9958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert("shared", &sharedAlertBytes); 9968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setInterfaceAlert(const char *iface, int64_t bytes) { 9998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 10008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 10025ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 10038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 10048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 10068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 10078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 10088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 10115ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior interface quota set to set an alert"); 10128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 10138a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert(iface, bytes, &it->alert); 10168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 10178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeInterfaceAlert(const char *iface) { 10198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 10208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 10228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 10238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 10248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 10275ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for interface %s", iface); 10288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 10298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert(iface, &it->alert); 10328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 10338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setCostlyAlert(const char *costName, int64_t bytes, int64_t *alertBytes) { 10358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 1036109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall char *chainName; 10378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 10388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 10398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 10415ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 10428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 10438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 10458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (*alertBytes) { 10468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, *alertBytes); 10478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 10487e51cde19af016456fff750f745db8132f3124a5JP Abgrall asprintf(&chainName, "bw_costly_%s", costName); 1049109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-A", chainName, bytes, alertName); 1050a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptJumpNoAdd); 10518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 1052109899bc63139c5260cb9a7dc409f92efaf2c4b7JP Abgrall free(chainName); 10538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = bytes; 10558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 10568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 10578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 10588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeCostlyAlert(const char *costName, int64_t *alertBytes) { 10608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 10618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainName; 10628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 10638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 10648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 10668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!*alertBytes) { 10675ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for %s alert", costName); 10688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 10698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 10708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10717e51cde19af016456fff750f745db8132f3124a5JP Abgrall asprintf(&chainName, "bw_costly_%s", costName); 107292009c8effc75c2d70a6c9a1ac33ba2c60b78820JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-D", chainName, *alertBytes, alertName); 1073a9ba4cba3369e07aae05607f82424cc0075c9c34JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptJumpNoAdd); 10748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 10758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainName); 10768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = 0; 10788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 10798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 10808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 1081db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1082db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 1083db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Parse the ptks and bytes out of: 1084baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * Chain natctrl_tether_counters (4 references) 1085baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * pkts bytes target prot opt in out source destination 1086baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * 26 2373 RETURN all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 counter wlan0_rmnet0: 0 bytes 1087baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * 27 2002 RETURN all -- rmnet0 wlan0 0.0.0.0/0 0.0.0.0/0 counter rmnet0_wlan0: 0 bytes 1088baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * 1040 107471 RETURN all -- bt-pan rmnet0 0.0.0.0/0 0.0.0.0/0 counter bt-pan_rmnet0: 0 bytes 1089baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * 1450 1708806 RETURN all -- rmnet0 bt-pan 0.0.0.0/0 0.0.0.0/0 counter rmnet0_bt-pan: 0 bytes 1090db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 1091baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrallint BandwidthController::parseForwardChainStats(SocketClient *cli, const TetherStats filter, 1092baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall FILE *fp, std::string &extraProcessingInfo) { 1093db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 1094db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char lineBuffer[MAX_IPT_OUTPUT_LINE_LEN]; 1095db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface0[MAX_IPT_OUTPUT_LINE_LEN]; 1096db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface1[MAX_IPT_OUTPUT_LINE_LEN]; 1097db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char rest[MAX_IPT_OUTPUT_LINE_LEN]; 1098db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1099baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall TetherStats stats; 1100db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *buffPtr; 1101db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int64_t packets, bytes; 1102baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall int statsFound = 0; 1103baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall 1104baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall bool filterPair = filter.intIface[0] && filter.extIface[0]; 1105baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall 1106baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall char *filterMsg = filter.getStatsLine(); 1107baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("filter: %s", filterMsg); 1108baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall free(filterMsg); 1109baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall 1110baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats = filter; 1111db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1112db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall while (NULL != (buffPtr = fgets(lineBuffer, MAX_IPT_OUTPUT_LINE_LEN, fp))) { 1113db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Clean up, so a failed parse can still print info */ 1114db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0[0] = iface1[0] = rest[0] = packets = bytes = 0; 11150031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = sscanf(buffPtr, "%lld %lld RETURN all -- %s %s 0.%s", 1116db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall &packets, &bytes, iface0, iface1, rest); 11173fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("parse res=%d iface0=<%s> iface1=<%s> pkts=%lld bytes=%lld rest=<%s> orig line=<%s>", res, 1118db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0, iface1, packets, bytes, rest, buffPtr); 1119a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += buffPtr; 1120a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall 1121db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (res != 5) { 1122db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall continue; 1123db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1124baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall /* 1125baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * The following assumes that the 1st rule has in:extIface out:intIface, 1126baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * which is what NatController sets up. 1127baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall * If not filtering, the 1st match rx, and sets up the pair for the tx side. 1128baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall */ 1129baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (filter.intIface[0] && filter.extIface[0]) { 1130baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (filter.intIface == iface0 && filter.extIface == iface1) { 1131baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("2Filter RX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1132baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxPackets = packets; 1133baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxBytes = bytes; 1134baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else if (filter.intIface == iface1 && filter.extIface == iface0) { 1135baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("2Filter TX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1136baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txPackets = packets; 1137baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txBytes = bytes; 1138baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1139baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else if (filter.intIface[0] || filter.extIface[0]) { 1140baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (filter.intIface == iface0 || filter.extIface == iface1) { 1141baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("1Filter RX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1142baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.intIface = iface0; 1143baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.extIface = iface1; 1144baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxPackets = packets; 1145baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxBytes = bytes; 1146baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else if (filter.intIface == iface1 || filter.extIface == iface0) { 1147baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("1Filter TX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1148baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.intIface = iface1; 1149baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.extIface = iface0; 1150baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txPackets = packets; 1151baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txBytes = bytes; 1152baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1153baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else /* if (!filter.intFace[0] && !filter.extIface[0]) */ { 1154baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (!stats.intIface[0]) { 1155baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("0Filter RX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1156baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.intIface = iface0; 1157baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.extIface = iface1; 1158baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxPackets = packets; 1159baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.rxBytes = bytes; 1160baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else if (stats.intIface == iface1 && stats.extIface == iface0) { 1161baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("0Filter TX iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1162baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txPackets = packets; 1163baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats.txBytes = bytes; 1164baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1165baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1166baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (stats.rxBytes != -1 && stats.txBytes != -1) { 1167baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall ALOGV("rx_bytes=%lld tx_bytes=%lld filterPair=%d", stats.rxBytes, stats.txBytes, filterPair); 1168baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall /* Send out stats, and prep for the next if needed. */ 1169baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall char *msg = stats.getStatsLine(); 1170baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (filterPair) { 1171baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall cli->sendMsg(ResponseCode::TetheringStatsResult, msg, false); 1172baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall return 0; 1173baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } else { 1174baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall cli->sendMsg(ResponseCode::TetheringStatsListResult, msg, false); 1175baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall stats = filter; 1176baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1177baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall free(msg); 1178baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall statsFound++; 1179db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1180db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1181baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall /* We found some stats, and the last one isn't a partial stats. */ 1182baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall if (statsFound && (stats.rxBytes == -1 || stats.txBytes == -1)) { 1183baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall cli->sendMsg(ResponseCode::CommandOkay, "Tethering stats list completed", false); 1184baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall return 0; 1185baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall } 1186baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall return -1; 1187db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1188db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1189baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrallchar *BandwidthController::TetherStats::getStatsLine(void) const { 1190db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *msg; 1191baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall asprintf(&msg, "%s %s %lld %lld %lld %lld", intIface.c_str(), extIface.c_str(), 1192db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall rxBytes, rxPackets, txBytes, txPackets); 1193db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return msg; 1194db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1195db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1196baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrallint BandwidthController::getTetherStats(SocketClient *cli, TetherStats &stats, std::string &extraProcessingInfo) { 1197db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 1198db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall std::string fullCmd; 1199db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall FILE *iptOutput; 1200db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall const char *cmd; 1201db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1202db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* 1203db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Why not use some kind of lib to talk to iptables? 1204db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Because the only libs are libiptc and libip6tc in iptables, and they are 1205db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * not easy to use. They require the known iptables match modules to be 1206db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * preloaded/linked, and require apparently a lot of wrapper code to get 1207db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * the wanted info. 1208db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 1209db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall fullCmd = IPTABLES_PATH; 1210baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall fullCmd += " -nvx -L "; 1211baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall fullCmd += NatController::LOCAL_TETHER_COUNTERS_CHAIN; 1212db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iptOutput = popen(fullCmd.c_str(), "r"); 1213db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (!iptOutput) { 12145ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed to run %s err=%s", fullCmd.c_str(), strerror(errno)); 1215a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += "Failed to run iptables."; 1216db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 1217db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1218baeccc455b293c2c83dbe6463f56b741177bd612JP Abgrall res = parseForwardChainStats(cli, stats, iptOutput, extraProcessingInfo); 1219db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall pclose(iptOutput); 1220db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1221db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Currently NatController doesn't do ipv6 tethering, so we are done. */ 1222db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return res; 1223db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1224