BandwidthController.cpp revision 29e8de22ad806bdcaa971ffeeb360c9f908aa346
14a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/* 24a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Copyright (C) 2011 The Android Open Source Project 34a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 44a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Licensed under the Apache License, Version 2.0 (the "License"); 54a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * you may not use this file except in compliance with the License. 64a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * You may obtain a copy of the License at 74a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 84a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * http://www.apache.org/licenses/LICENSE-2.0 94a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 104a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Unless required by applicable law or agreed to in writing, software 114a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * distributed under the License is distributed on an "AS IS" BASIS, 124a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 134a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * See the License for the specific language governing permissions and 144a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * limitations under the License. 154a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 164a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 17db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall// #define LOG_NDEBUG 0 18db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 19db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 20db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * The CommandListener, FrameworkListener don't allow for 21db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * multiple calls in parallel to reach the BandwidthController. 22db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * If they ever were to allow it, then netd/ would need some tweaking. 23db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 24db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall#include <errno.h> 264a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <fcntl.h> 27db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall#include <stdio.h> 288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall#include <stdlib.h> 294a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <string.h> 304a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 314a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/socket.h> 324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/stat.h> 334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/types.h> 344a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <sys/wait.h> 354a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 364a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/netlink.h> 374a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/rtnetlink.h> 384a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <linux/pkt_sched.h> 394a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 404a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#define LOG_TAG "BandwidthController" 414a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <cutils/log.h> 424a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include <cutils/properties.h> 434a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 44c4bbfa247dbe4dda17e28694d49afd3ec0b06badGlenn Kastenextern "C" int logwrap(int argc, const char **argv); 459e5e0ce62e88ddf9a09798eda51b0c270d354c8eJP Abgrallextern "C" int system_nosh(const char *command); 464a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 470031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall#include "NetdConstants.h" 484a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include "BandwidthController.h" 494a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 50db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* Alphabetical */ 51c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich#define ALERT_IPT_TEMPLATE "%s %s %s -m quota2 ! --quota %lld --name %s" 52db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::ALERT_RULE_POS_IN_COSTLY_CHAIN = 4; 53c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallconst char BandwidthController::ALERT_GLOBAL_NAME[] = "globalAlert"; 54db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_ARGS = 32; 55db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_LEN = 1024; 56db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IFACENAME_LEN = 64; 57db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IPT_OUTPUT_LINE_LEN = 256; 58db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 5911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrallbool BandwidthController::useLogwrapCall = false; 604a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 614a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/** 624a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Some comments about the rules: 634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * Ordering 644a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - when an interface is marked as costly it should be INSERTED into the INPUT/OUTPUT chains. 6529e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * E.g. "-I bw_INPUT -i rmnet0 --jump costly" 664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota'd rules in the costly chain should be before penalty_box lookups. 6729e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * - the qtaguid counting is done at the end of the bw_INPUT/bw_OUTPUT user chains. 684a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 694a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * global quota vs per interface quota 704a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - global quota for all costly interfaces uses a single costly chain: 714a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . initial rules 72bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -N costly_shared 7329e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface0 --jump costly_shared 7429e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump costly_shared 75bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I costly_shared -m quota \! --quota 500000 \ 76bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 77bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_shared --jump penalty_box 788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall * 794a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . adding a new iface to this, E.g.: 8029e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface1 --jump costly_shared 8129e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface1 --jump costly_shared 824a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota per interface. This is achieve by having "costly" chains per quota. 844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g. adding a new costly interface iface0 with its own quota: 854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -N costly_iface0 8629e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_INPUT -i iface0 --jump costly_iface0 8729e8de22ad806bdcaa971ffeeb360c9f908aa346JP Abgrall * iptables -I bw_OUTPUT -o iface0 --jump costly_iface0 88bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 -m quota \! --quota 500000 \ 89bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 90bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 --jump penalty_box 914a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * penalty_box handling: 934a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - only one penalty_box for all interfaces 944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g Adding an app: 95bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A penalty_box -m owner --uid-owner app_3 \ 96bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 974a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 980031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_FLUSH_COMMANDS[] = { 990031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 1000031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Cleanup rules. 1010031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Should normally include costly_<iface>, but we rely on the way they are setup 1020031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * to allow coexistance. 10339f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall */ 1040031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_INPUT", 1050031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_OUTPUT", 1060031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F bw_FORWARD", 1070031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F penalty_box", 1080031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-F costly_shared", 109f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 110f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -F bw_raw_PREROUTING", 111f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -F bw_mangle_POSTROUTING", 1120031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall}; 1130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 1140031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall/* The cleanup commands assume flushing has been done. */ 1150031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallconst char *BandwidthController::IPT_CLEANUP_COMMANDS[] = { 1160031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* Delete hooks to custom chains. */ 1170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-D INPUT -j bw_INPUT", 1180031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-D OUTPUT -j bw_OUTPUT", 1190031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-D FORWARD -j bw_FORWARD", 120f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 121f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -D bw_raw_PREROUTING", 122f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -D bw_mangle_POSTROUTING", 123f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 1240031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X bw_INPUT", 1250031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X bw_OUTPUT", 1260031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X bw_FORWARD", 1270031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X penalty_box", 1280031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-X costly_shared", 129f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 130f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -X bw_raw_PREROUTING", 131f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -X bw_mangle_POSTROUTING", 1320dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 134db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_SETUP_COMMANDS[] = { 1350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Created needed chains. */ 1360031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-N bw_INPUT", 1370031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A INPUT -j bw_INPUT", 1380031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 1390031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-N bw_OUTPUT", 1400031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A OUTPUT -j bw_OUTPUT", 1410031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 1420031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-N bw_FORWARD", 1430031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-I FORWARD -j bw_FORWARD", 1440031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 145bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-N costly_shared", 1460dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-N penalty_box", 147f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 148f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -N bw_raw_PREROUTING", 149f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -A PREROUTING -j bw_raw_PREROUTING", 150f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -N bw_mangle_POSTROUTING", 151f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -A POSTROUTING -j bw_mangle_POSTROUTING", 1520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1530dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 154db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_BASIC_ACCOUNTING_COMMANDS[] = { 1550031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_INPUT -i lo --jump RETURN", 1560031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_INPUT -m owner --socket-exists", /* This is a tracking rule. */ 1570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 1580031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_OUTPUT -o lo --jump RETURN", 1590031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall "-A bw_OUTPUT -m owner --socket-exists", /* This is a tracking rule. */ 1600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 161bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-A costly_shared --jump penalty_box", 162f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall 163f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t raw -A bw_raw_PREROUTING ! -i lo+ -m owner --socket-exists", /* This is a tracking rule. */ 164f66d6e9db6be3e94b80c59fab99e237d2e2968c5JP Abgrall "-t mangle -A bw_mangle_POSTROUTING ! -o lo+ -m owner --socket-exists", /* This is a tracking rule. */ 1650dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1674a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP AbgrallBandwidthController::BandwidthController(void) { 1684a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char value[PROPERTY_VALUE_MAX]; 1694a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 17011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall property_get("persist.bandwidth.uselogwrap", value, "0"); 17111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall useLogwrapCall = !strcmp(value, "1"); 1724a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 1734a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 174ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrallint BandwidthController::runIpxtablesCmd(const char *cmd, IptRejectOp rejectHandling, 175ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureHandling) { 1760dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 1778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 1783fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runIpxtablesCmd(cmd=%s)", cmd); 179ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV4, failureHandling); 180ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV6, failureHandling); 1810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 1820dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 1830dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 18426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::StrncpyAndCheck(char *buffer, const char *src, size_t buffSize) { 18526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 18626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall memset(buffer, '\0', buffSize); // strncpy() is not filling leftover with '\0' 18726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall strncpy(buffer, src, buffSize); 18826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return buffer[buffSize - 1]; 18926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall} 19026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 1918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesCmd(const char *cmd, IptRejectOp rejectHandling, 192ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptIpVer iptVer, IptFailureLog failureHandling) { 19326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall char buffer[MAX_CMD_LEN]; 1944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall const char *argv[MAX_CMD_ARGS]; 19526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall int argc = 0; 1964a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *next = buffer; 1974a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *tmp; 19811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall int res; 1994a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string fullCmd = cmd; 20126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 20226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (rejectHandling == IptRejectAdd) { 2030dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fullCmd += " --jump REJECT --reject-with"; 20426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (iptVer) { 20526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV4: 2068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp-net-prohibited"; 2078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 20826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV6: 2098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp6-adm-prohibited"; 2108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 2110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 2120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 2130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 21411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, " "); 21511b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, iptVer == IptIpV4 ? IPTABLES_PATH : IP6TABLES_PATH); 2164a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 21711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (!useLogwrapCall) { 2189e5e0ce62e88ddf9a09798eda51b0c270d354c8eJP Abgrall res = system_nosh(fullCmd.c_str()); 21911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } else { 22011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (StrncpyAndCheck(buffer, fullCmd.c_str(), sizeof(buffer))) { 2215ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("iptables command too long"); 2224a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 2234a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 224fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 22511b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argc = 0; 22611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall while ((tmp = strsep(&next, " "))) { 22711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argv[argc++] = tmp; 22811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (argc >= MAX_CMD_ARGS) { 2295ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("iptables argument overflow"); 23011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return -1; 23111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 23211b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 23311b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall 23411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argv[argc] = NULL; 235c4bbfa247dbe4dda17e28694d49afd3ec0b06badGlenn Kasten res = logwrap(argc, argv); 23611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 237ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall if (res && failureHandling == IptFailShow) { 2385ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("runIptablesCmd(): failed %s res=%d", fullCmd.c_str(), res); 23911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 24011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return res; 2414a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2424a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2430031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::setupIptablesHooks(void) { 2440031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2450031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* Some of the initialCommands are allowed to fail */ 2460031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2470031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 2480031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2490031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_CLEANUP_COMMANDS) / sizeof(char*), 2500031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_CLEANUP_COMMANDS, RunCmdFailureOk); 2510031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2520031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_SETUP_COMMANDS) / sizeof(char*), 2530031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_SETUP_COMMANDS, RunCmdFailureBad); 2540031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2550031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2560031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2570031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall} 2580031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2590031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrallint BandwidthController::enableBandwidthControl(bool force) { 260fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res; 2610031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall char value[PROPERTY_VALUE_MAX]; 2620031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 2630031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!force) { 2640031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall property_get("persist.bandwidth.enable", value, "1"); 2650031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (!strcmp(value, "0")) 2660031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 2670031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall } 2688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 269db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Let's pretend we started from scratch ... */ 2708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaIfaces.clear(); 2718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.clear(); 2728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall naughtyAppUids.clear(); 273db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall globalAlertBytes = 0; 274c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount = 0; 275db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall sharedQuotaBytes = sharedAlertBytes = 0; 276db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2770031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2780031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 279db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 2800031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res |= runCommands(sizeof(IPT_BASIC_ACCOUNTING_COMMANDS) / sizeof(char*), 281db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_BASIC_ACCOUNTING_COMMANDS, RunCmdFailureBad); 2828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 283fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 2844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2864a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2874a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallint BandwidthController::disableBandwidthControl(void) { 2880031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall runCommands(sizeof(IPT_FLUSH_COMMANDS) / sizeof(char*), 2890031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall IPT_FLUSH_COMMANDS, RunCmdFailureOk); 290fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 2914a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runCommands(int numCommands, const char *commands[], 2948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall RunCmdErrHandling cmdErrHandling) { 295fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 296ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall IptFailureLog failureLogging = IptFailShow; 297ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall if (cmdErrHandling == RunCmdFailureOk) { 298ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall failureLogging = IptFailHide; 299ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall } 3003fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("runCommands(): %d commands", numCommands); 301fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (int cmdNum = 0; cmdNum < numCommands; cmdNum++) { 302ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res = runIpxtablesCmd(commands[cmdNum], IptRejectNoAdd, failureLogging); 3030031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall if (res && cmdErrHandling != RunCmdFailureOk) 304fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 305fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 3060031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return 0; 307fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 308fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 3090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallstd::string BandwidthController::makeIptablesNaughtyCmd(IptOp op, int uid) { 310fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 3118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 3128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 313fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 314fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 3158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 3168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 3178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 3198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 3208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 3228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 3238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 3248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 325fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 3268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s penalty_box -m owner --uid-owner %d", opFlag, uid); 3278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 3288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 329fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 330fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 331fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 332fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::addNaughtyApps(int numUids, char *appUids[]) { 33326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpAdd); 334fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 335fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 336fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeNaughtyApps(int numUids, char *appUids[]) { 33726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpRemove); 338fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 339fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 34026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::maninpulateNaughtyApps(int numUids, char *appStrUids[], NaughtyAppOp appOp) { 341fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall char cmd[MAX_CMD_LEN]; 342fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int uidNum; 34326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *failLogTemplate; 34426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall IptOp op; 345fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int appUids[numUids]; 34626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string naughtyCmd; 347b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall std::list<int /*uid*/>::iterator it; 3488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 34926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (appOp) { 35026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpAdd: 3518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpInsert; 3528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to add app uid %d to penalty box."; 3538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 35426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpRemove: 3558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpDelete; 3568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to delete app uid %d from penalty box."; 3578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3580031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 3590031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected app Op %d", appOp); 3600031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 36126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 36226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 363fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 364fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall appUids[uidNum] = atol(appStrUids[uidNum]); 365fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (appUids[uidNum] == 0) { 3665ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE(failLogTemplate, appUids[uidNum]); 367fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_parse; 368fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 369fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 370fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 371fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 372b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall int uid = appUids[uidNum]; 373b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall for (it = naughtyAppUids.begin(); it != naughtyAppUids.end(); it++) { 374b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (*it == uid) 375b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall break; 376b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 377b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall bool found = (it != naughtyAppUids.end()); 378b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 379b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (appOp == NaughtyAppOpRemove) { 380b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (!found) { 381b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("No such appUid %d to remove", uid); 382b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 383b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 384b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyAppUids.erase(it); 385b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } else { 386b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall if (found) { 387b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE("appUid %d exists already", uid); 388b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall return -1; 389b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 390b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyAppUids.push_front(uid); 391b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall } 392b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall 393b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(op, uid); 39426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd)) { 395b1d24094c2c5d48bbb3dfad4a0551ff0bf77ce6cJP Abgrall ALOGE(failLogTemplate, uid); 396fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_with_uidNum; 397fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 398fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 399fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 400fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 40126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_with_uidNum: 402fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall /* Try to remove the uid that failed in any case*/ 40326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(IptOpDelete, appUids[uidNum]); 40426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd); 40526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_parse: 40626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 4074a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 4084a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 40926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallstd::string BandwidthController::makeIptablesQuotaCmd(IptOp op, const char *costName, int64_t quota) { 410fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 4118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 4128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 4130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4143fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("makeIptablesQuotaCmd(%d, %lld)", op, quota); 4150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 416fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 4178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 4188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 4198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 4208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 4218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 4228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 4238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 4248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 4258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 4268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 427fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 4288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 429bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall // The requried IP version specific --jump REJECT ... will be added later. 4308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s costly_%s -m quota2 ! --quota %lld --name %s", opFlag, costName, quota, 4318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall costName); 4328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 4338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 4340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 4350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 4360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 43726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::prepCostlyIface(const char *ifn, QuotaType quotaType) { 4380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 4390031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall int res = 0, res1, res2; 4408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int ruleInsertPos = 1; 4410dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 4420dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 4430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4440dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* The "-N costly" is created upfront, no need to handle it here. */ 44526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 44626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 447bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 4480dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 4490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 4500031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall /* 4510031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Flush the costly_<iface> is allowed to fail in case it didn't exist. 4520031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Creating a new one is allowed to fail in case it existed. 4530031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * This helps with netd restarts. 4540031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall */ 4550031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 456ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res1 = runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-N %s", costCString); 458ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall res2 = runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4590031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = (res1 && res2) || (!res1 && !res2); 4600031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s -j penalty_box", costCString); 46226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 46326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 46426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 465bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 46626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 4670031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 4680031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 4690031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 4700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 4710dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 4738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* The alert rule comes 1st */ 4748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ruleInsertPos = 2; 4758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 4760031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4770031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 478ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4790031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4800031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_INPUT %d -i %s --jump %s", ruleInsertPos, ifn, costCString); 48126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4820031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4830031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 484ad729ac11e080b1f1bdd9cd32807d9ae74ce2a63JP Abgrall runIpxtablesCmd(cmd, IptRejectNoAdd, IptFailHide); 4850031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall 4860031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-I bw_OUTPUT %d -o %s --jump %s", ruleInsertPos, ifn, costCString); 48726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4880dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 4890dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 4900dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 49126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::cleanupCostlyIface(const char *ifn, QuotaType quotaType) { 4920dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 4930dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 4940dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 4950dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 4960dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 49726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 49826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 499bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 5000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 5010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 50226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 50326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 504bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 50526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 5060031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall default: 5070031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall ALOGE("Unexpected quotatype %d", quotaType); 5080031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall return -1; 5090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5100dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5110031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_INPUT -i %s --jump %s", ifn, costCString); 51226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 5130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall snprintf(cmd, sizeof(cmd), "-D bw_OUTPUT -o %s --jump %s", ifn, costCString); 51426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 5150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 516bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall /* The "-N costly_shared" is created upfront, no need to handle it here. */ 51726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (quotaType == QuotaUnique) { 5180dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 51926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 520a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall snprintf(cmd, sizeof(cmd), "-X %s", costCString); 521a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 522fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 523fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 524fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 5254a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5260dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceSharedQuota(const char *iface, int64_t maxBytes) { 5274a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char cmd[MAX_CMD_LEN]; 5284a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 529fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 53026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 5318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::string ifaceName; 5328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ; 533bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 53426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<std::string>::iterator it; 5354a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 5378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 5385ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 5398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 5408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 54126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 5425ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 54326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 54426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 54526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 5464a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5474a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (maxBytes == -1) { 548fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return removeInterfaceSharedQuota(ifn); 5494a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5504a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5514a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* Insert ingress quota. */ 5520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 5530dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 554fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 5554a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 556fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 5570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 55826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaShared); 5590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 5600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 56126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 5624a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (res) { 5635ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 564fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 5654a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 566fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 567fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 5680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.push_front(ifaceName); 569fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 570fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 571fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 572fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (maxBytes != sharedQuotaBytes) { 5738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 574fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (res) { 5755ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", costName); 576fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 577fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 578fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 5794a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5804a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return 0; 581fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 582fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall fail: 5834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* 5844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 5854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * rules in the kernel to see which ones need cleaning up. 586fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 587fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * which resets everything. 5884a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 589fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall removeInterfaceSharedQuota(ifn); 5904a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 5914a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 5924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall/* It will also cleanup any shared alerts */ 594fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeInterfaceSharedQuota(const char *iface) { 5954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 596fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 59726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 5980dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::list<std::string>::iterator it; 599bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 6004a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 6018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6025ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 60326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 60426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 6058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ifaceName = ifn; 60626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 6070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 6080dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 609fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 6104a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 6110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 6125ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 613fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return -1; 6144a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 615fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 61626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaShared); 6170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.erase(it); 618fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 6190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 620fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string quotaCmd; 621bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpDelete, costName, sharedQuotaBytes); 62226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 6238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaBytes = 0; 6248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (sharedAlertBytes) { 6258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall removeSharedAlert(); 6268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedAlertBytes = 0; 6278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 628fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 6294a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return res; 6304a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 6310dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6320dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceQuota(const char *iface, int64_t maxBytes) { 6330dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 6340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 63526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 63626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 63726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 63826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 6390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 6418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 6425ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 6438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6450dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (maxBytes == -1) { 64626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return removeInterfaceQuota(iface); 6470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6480dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 6505ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 65126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 65226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 65326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 65426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 65526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 6560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Insert ingress quota. */ 6570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 6588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 6590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 6600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6620dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 66326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaUnique); 6640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 66526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 6660dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 6675ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed set quota rule"); 6680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 6690dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.push_front(QuotaInfo(ifaceName, maxBytes, 0)); 6720dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6730dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } else { 6748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 6750dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 6765ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed update quota for %s", iface); 6770dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 6780dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall it->quota = maxBytes; 6800dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return 0; 6820dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6830dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fail: 6840dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* 6850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 6860dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * rules in the kernel to see which ones need cleaning up. 6870dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 6880dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * which resets everything. 6890dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 6900dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall removeInterfaceSharedQuota(ifn); 6910dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 6920dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 6930dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceSharedQuota(int64_t *bytes) { 6958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return getInterfaceQuota("shared", bytes); 6968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceQuota(const char *costName, int64_t *bytes) { 6998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 7008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 7018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int scanRes; 7028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", costName); 7048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "r"); 7058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 7068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 7075ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Reading quota %s failed (%s)", costName, strerror(errno)); 7088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall scanRes = fscanf(fp, "%lld", bytes); 7113fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("Read quota res=%d bytes=%lld", scanRes, *bytes); 7128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 7138a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return scanRes == 1 ? 0 : -1; 7148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7160dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::removeInterfaceQuota(const char *iface) { 7170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7180dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 7190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 72026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 72126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 72226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 7230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 7255ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 72626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 72726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 72826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 72926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 7300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7310dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 7328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 7330dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 7340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 7375ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No such iface %s to delete", ifn); 7380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 7390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 7400dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7410dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* This also removes the quota command of CostlyIface chain. */ 74226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaUnique); 7430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7440dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaIfaces.erase(it); 7450dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 7460dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 7470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 7488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::updateQuota(const char *quotaName, int64_t bytes) { 7508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 7518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 7528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", quotaName); 7548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "w"); 7558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 7568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 7575ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Updating quota %s failed (%s)", quotaName, strerror(errno)); 7588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fprintf(fp, "%lld\n", bytes); 7618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 7628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return 0; 7638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesAlertCmd(IptOp op, const char *alertName, int64_t bytes) { 7668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 768876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall const char *ifaceLimiting; 7698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 7708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall switch (op) { 7728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 7738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 7748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 7768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 7778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 7798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 7808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 7818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 784876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall ifaceLimiting = "! -i lo+"; 7850031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, ifaceLimiting, opFlag, "bw_INPUT", 786c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 7878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 7888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 789876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall ifaceLimiting = "! -o lo+"; 7900031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, ifaceLimiting, opFlag, "bw_OUTPUT", 791c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 7928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 7938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 7948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 7958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 797c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::runIptablesAlertFwdCmd(IptOp op, const char *alertName, int64_t bytes) { 798c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 799c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *opFlag; 800c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *ifaceLimiting; 8018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 802c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 803c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall switch (op) { 804c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpInsert: 805c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-I"; 806c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 807c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpReplace: 808c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-R"; 809c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 810c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall default: 811c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall case IptOpDelete: 812c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall opFlag = "-D"; 813c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall break; 814c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 815c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 816c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall ifaceLimiting = "! -i lo+"; 8170031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, ifaceLimiting, opFlag, "bw_FORWARD", 818c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich bytes, alertName); 819c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 820c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall free(alertQuotaCmd); 821c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 822c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 823c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 824c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlert(int64_t bytes) { 825c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 8268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 8278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 8295ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 8308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 8338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, bytes); 8348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 8358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpInsert, alertName, bytes); 836c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 8373fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlert for %d tether", globalAlertTetherCount); 838c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpInsert, alertName, bytes); 839c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 8408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = bytes; 8428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 845c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::setGlobalAlertInForwardChain(void) { 846c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 847c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 848c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 849c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount++; 8503fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("setGlobalAlertInForwardChain(): %d tether", globalAlertTetherCount); 851c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 852c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 853c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 854c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but this is not the 1st 855c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tether, we are also done. 856c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 857c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount != 1) { 858c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 859c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 860c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 861c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only add the rule if this was the 1st tether added. */ 862c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpInsert, alertName, globalAlertBytes); 863c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 864c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 865c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 8668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeGlobalAlert(void) { 8678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 868c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 8698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 8708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!globalAlertBytes) { 8725ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 8738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpDelete, alertName, globalAlertBytes); 876c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (globalAlertTetherCount) { 877c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res |= runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 878c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 8798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = 0; 8808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 883c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrallint BandwidthController::removeGlobalAlertInForwardChain(void) { 884c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall int res = 0; 885c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall const char *alertName = ALERT_GLOBAL_NAME; 886c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 887c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertTetherCount) { 8885ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set"); 889c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return -1; 890c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 891c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 892c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall globalAlertTetherCount--; 893c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* 894c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is no globalAlert active we are done. 895c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * If there is an active globalAlert but there are more 896c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall * tethers, we are also done. 897c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall */ 898c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall if (!globalAlertBytes || globalAlertTetherCount >= 1) { 899c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return 0; 900c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall } 901c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 902c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall /* We only detete the rule if this was the last tether removed. */ 903c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall res = runIptablesAlertFwdCmd(IptOpDelete, alertName, globalAlertBytes); 904c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall return res; 905c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall} 906c6c673496184bed6d62cf92a6fc7ed43fd94acd5JP Abgrall 9078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setSharedAlert(int64_t bytes) { 9088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!sharedQuotaBytes) { 9095ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior shared quota set to set an alert"); 9108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9135ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert("shared", bytes, &sharedAlertBytes); 9178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeSharedAlert(void) { 9208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert("shared", &sharedAlertBytes); 9218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setInterfaceAlert(const char *iface, int64_t bytes) { 9248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 9258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9275ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 9318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 9328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 9338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 9365ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Need to have a prior interface quota set to set an alert"); 9378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert(iface, bytes, &it->alert); 9418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeInterfaceAlert(const char *iface) { 9448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 9458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 9478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 9488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 9498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 9525ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for interface %s", iface); 9538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert(iface, &it->alert); 9578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setCostlyAlert(const char *costName, int64_t bytes, int64_t *alertBytes) { 9608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 9618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainNameAndPos; 9628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 9648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 9665ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Invalid bytes value. 1..max_int64."); 9678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 9708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (*alertBytes) { 9718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, *alertBytes); 9728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 9738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainNameAndPos, "costly_%s %d", costName, ALERT_RULE_POS_IN_COSTLY_CHAIN); 974c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "", "-I", chainNameAndPos, bytes, alertName); 9758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 9768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 9778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainNameAndPos); 9788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = bytes; 9808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 9818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 9828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 9838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeCostlyAlert(const char *costName, int64_t *alertBytes) { 9858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 9868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainName; 9878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 9888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 9898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 9918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!*alertBytes) { 9925ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("No prior alert set for %s alert", costName); 9938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 9948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 9958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 9968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainName, "costly_%s", costName); 997c2b26cb83d9bf3f91e986625efcc40fc8eb79a13Nick Kralevich asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "", "-D", chainName, *alertBytes, alertName); 9988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 9998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 10008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainName); 10018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 10028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = 0; 10038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 10048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 10058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 1006db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1007db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 1008db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Parse the ptks and bytes out of: 10090031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * Chain FORWARD (policy RETURN 0 packets, 0 bytes) 1010db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * pkts bytes target prot opt in out source destination 10110031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * 0 0 RETURN all -- rmnet0 wlan0 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 1012db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 0 0 DROP all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 state INVALID 10130031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall * 0 0 RETURN all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 1014db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 1015db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 1016a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrallint BandwidthController::parseForwardChainStats(TetherStats &stats, FILE *fp, 1017a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall std::string &extraProcessingInfo) { 1018db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 1019db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char lineBuffer[MAX_IPT_OUTPUT_LINE_LEN]; 1020db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface0[MAX_IPT_OUTPUT_LINE_LEN]; 1021db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface1[MAX_IPT_OUTPUT_LINE_LEN]; 1022db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char rest[MAX_IPT_OUTPUT_LINE_LEN]; 1023db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1024db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *buffPtr; 1025db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int64_t packets, bytes; 1026db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1027db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall while (NULL != (buffPtr = fgets(lineBuffer, MAX_IPT_OUTPUT_LINE_LEN, fp))) { 1028db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Clean up, so a failed parse can still print info */ 1029db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0[0] = iface1[0] = rest[0] = packets = bytes = 0; 10300031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall res = sscanf(buffPtr, "%lld %lld RETURN all -- %s %s 0.%s", 1031db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall &packets, &bytes, iface0, iface1, rest); 10323fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("parse res=%d iface0=<%s> iface1=<%s> pkts=%lld bytes=%lld rest=<%s> orig line=<%s>", res, 1033db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0, iface1, packets, bytes, rest, buffPtr); 1034a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += buffPtr; 1035a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall 1036db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (res != 5) { 1037db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall continue; 1038db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1039db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if ((stats.ifaceIn == iface0) && (stats.ifaceOut == iface1)) { 10403fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 1041db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxPackets = packets; 1042db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxBytes = bytes; 1043db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } else if ((stats.ifaceOut == iface0) && (stats.ifaceIn == iface1)) { 10443fb42e026ffebab2c8f282e42501040121e32d83Steve Block ALOGV("iface_in=%s iface_out=%s tx_bytes=%lld tx_packets=%lld ", iface1, iface0, bytes, packets); 1045db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txPackets = packets; 1046db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txBytes = bytes; 1047db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1048db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1049db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Failure if rx or tx was not found */ 1050db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return (stats.rxBytes == -1 || stats.txBytes == -1) ? -1 : 0; 1051db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1052db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1053db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1054db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallchar *BandwidthController::TetherStats::getStatsLine(void) { 1055db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *msg; 1056db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall asprintf(&msg, "%s %s %lld %lld %lld %lld", ifaceIn.c_str(), ifaceOut.c_str(), 1057db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall rxBytes, rxPackets, txBytes, txPackets); 1058db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return msg; 1059db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1060db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1061a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrallint BandwidthController::getTetherStats(TetherStats &stats, std::string &extraProcessingInfo) { 1062db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 1063db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall std::string fullCmd; 1064db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall FILE *iptOutput; 1065db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall const char *cmd; 1066db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1067db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (stats.rxBytes != -1 || stats.txBytes != -1) { 10685ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Unexpected input stats. Byte counts should be -1."); 1069db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 1070db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1071db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1072db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* 1073db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Why not use some kind of lib to talk to iptables? 1074db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Because the only libs are libiptc and libip6tc in iptables, and they are 1075db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * not easy to use. They require the known iptables match modules to be 1076db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * preloaded/linked, and require apparently a lot of wrapper code to get 1077db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * the wanted info. 1078db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 1079db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall fullCmd = IPTABLES_PATH; 10800031cead820149e2fe3ccb3cc2fe05758a3cb5c2JP Abgrall fullCmd += " -nvx -L natctrl_FORWARD"; 1081db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iptOutput = popen(fullCmd.c_str(), "r"); 1082db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (!iptOutput) { 10835ea0c05a1e7d8e664b808aa1bb1efd08fdb2fb13Steve Block ALOGE("Failed to run %s err=%s", fullCmd.c_str(), strerror(errno)); 1084a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall extraProcessingInfo += "Failed to run iptables."; 1085db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 1086db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 1087a2a64f004f1677daf16b0b03d589d6572ec547c2JP Abgrall res = parseForwardChainStats(stats, iptOutput, extraProcessingInfo); 1088db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall pclose(iptOutput); 1089db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 1090db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Currently NatController doesn't do ipv6 tethering, so we are done. */ 1091db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return res; 1092db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 1093