BandwidthController.cpp revision db7da58e8d2aa021060098057f944ef754be06e3
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 444a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallextern "C" int logwrap(int argc, const char **argv, int background); 454a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 464a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall#include "BandwidthController.h" 474a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 48db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* Alphabetical */ 49876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrallconst char BandwidthController::ALERT_IPT_TEMPLATE[] = "%s %s %s -m quota2 ! --quota %lld --name %s"; 50db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::ALERT_RULE_POS_IN_COSTLY_CHAIN = 4; 51db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char BandwidthController::IP6TABLES_PATH[] = "/system/bin/ip6tables"; 52db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char BandwidthController::IPTABLES_PATH[] = "/system/bin/iptables"; 53db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_ARGS = 32; 54db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_CMD_LEN = 1024; 55db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IFACENAME_LEN = 64; 56db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst int BandwidthController::MAX_IPT_OUTPUT_LINE_LEN = 256; 57db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 5811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrallbool BandwidthController::useLogwrapCall = false; 594a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 604a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall/** 614a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * Some comments about the rules: 624a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * Ordering 634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - when an interface is marked as costly it should be INSERTED into the INPUT/OUTPUT chains. 644a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g. "-I INPUT -i rmnet0 --goto costly" 654a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota'd rules in the costly chain should be before penalty_box lookups. 664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 674a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * * global quota vs per interface quota 684a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - global quota for all costly interfaces uses a single costly chain: 694a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . initial rules 70bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -N costly_shared 71bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I INPUT -i iface0 --goto costly_shared 72bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I OUTPUT -o iface0 --goto costly_shared 73bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I costly_shared -m quota \! --quota 500000 \ 74bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 75bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_shared --jump penalty_box 76bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_shared -m owner --socket-exists 778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall * 784a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * . adding a new iface to this, E.g.: 79bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I INPUT -i iface1 --goto costly_shared 80bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -I OUTPUT -o iface1 --goto costly_shared 814a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * 824a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * - quota per interface. This is achieve by having "costly" chains per quota. 834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * E.g. adding a new costly interface iface0 with its own quota: 844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -N costly_iface0 854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -I INPUT -i iface0 --goto costly_iface0 864a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -I OUTPUT -o iface0 --goto costly_iface0 87bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 -m quota \! --quota 500000 \ 88bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * --jump REJECT --reject-with icmp-net-prohibited 89bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall * iptables -A costly_iface0 --jump penalty_box 904a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * iptables -A costly_iface0 -m owner --socket-exists 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 */ 98db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_CLEANUP_COMMANDS[] = { 990dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Cleanup rules. */ 1000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-F", 1010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-t raw -F", 10239f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall /* TODO: If at some point we need more user chains than here, then we will need 10339f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall * a different cleanup approach. 10439f8f24246a5dac21be5cc5e32c0f395ee803766JP Abgrall */ 105bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-X", /* Should normally only be costly_shared, penalty_box, and costly_<iface> */ 1060dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1074a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 108db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_SETUP_COMMANDS[] = { 1090dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Created needed chains. */ 110bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-N costly_shared", 1110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-N penalty_box", 1120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 114db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallconst char *BandwidthController::IPT_BASIC_ACCOUNTING_COMMANDS[] = { 1150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-F INPUT", 1160dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-A INPUT -i lo --jump ACCEPT", 1170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-A INPUT -m owner --socket-exists", /* This is a tracking rule. */ 1180dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 1190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-F OUTPUT", 1200dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-A OUTPUT -o lo --jump ACCEPT", 1210dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall "-A OUTPUT -m owner --socket-exists", /* This is a tracking rule. */ 1220dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 123bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-F costly_shared", 124bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-A costly_shared --jump penalty_box", 125bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-A costly_shared -m owner --socket-exists", /* This is a tracking rule. */ 1260dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* TODO(jpa): Figure out why iptables doesn't correctly return from this 1270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * chain. For now, hack the chain exit with an ACCEPT. 1280dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 129bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall "-A costly_shared --jump ACCEPT", 1300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall}; 1314a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP AbgrallBandwidthController::BandwidthController(void) { 1334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char value[PROPERTY_VALUE_MAX]; 1344a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1354a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall property_get("persist.bandwidth.enable", value, "0"); 1364a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (!strcmp(value, "1")) { 1374a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall enableBandwidthControl(); 1384a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 1394a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 14011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall property_get("persist.bandwidth.uselogwrap", value, "0"); 14111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall useLogwrapCall = !strcmp(value, "1"); 1424a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 1434a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 14426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::runIpxtablesCmd(const char *cmd, IptRejectOp rejectHandling) { 1450dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 1468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 147db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("runIpxtablesCmd(cmd=%s)", cmd); 14826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV4); 14926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIptablesCmd(cmd, rejectHandling, IptIpV6); 1500dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 1510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 1520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 15326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::StrncpyAndCheck(char *buffer, const char *src, size_t buffSize) { 15426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 15526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall memset(buffer, '\0', buffSize); // strncpy() is not filling leftover with '\0' 15626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall strncpy(buffer, src, buffSize); 15726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return buffer[buffSize - 1]; 15826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall} 15926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 1608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesCmd(const char *cmd, IptRejectOp rejectHandling, 1618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall IptIpVer iptVer) { 16226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall char buffer[MAX_CMD_LEN]; 1634a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall const char *argv[MAX_CMD_ARGS]; 16426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall int argc = 0; 1654a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *next = buffer; 1664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char *tmp; 16711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall int res; 1684a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 1690dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string fullCmd = cmd; 17026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 17126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (rejectHandling == IptRejectAdd) { 1720dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fullCmd += " --jump REJECT --reject-with"; 17326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (iptVer) { 17426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV4: 1758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp-net-prohibited"; 1768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 17726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case IptIpV6: 1788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fullCmd += " icmp6-adm-prohibited"; 1798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 1800dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 1810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 1820dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 18311b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, " "); 18411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall fullCmd.insert(0, iptVer == IptIpV4 ? IPTABLES_PATH : IP6TABLES_PATH); 1854a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 18611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (!useLogwrapCall) { 18711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall res = system(fullCmd.c_str()); 18811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } else { 18911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (StrncpyAndCheck(buffer, fullCmd.c_str(), sizeof(buffer))) { 19011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall LOGE("iptables command too long"); 1914a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 1924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 193fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 19411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argc = 0; 19511b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall while ((tmp = strsep(&next, " "))) { 19611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argv[argc++] = tmp; 19711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (argc >= MAX_CMD_ARGS) { 19811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall LOGE("iptables argument overflow"); 19911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return -1; 20011b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 20111b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 20211b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall 20311b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall argv[argc] = NULL; 20411b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall res = logwrap(argc, argv, 0); 20511b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 20611b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall if (res) { 20711b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall LOGE("runIptablesCmd(): failed %s res=%d", fullCmd.c_str(), res); 20811b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall } 20911b4e9b26fe7b878992162afb39f5a8acfd143edJP Abgrall return res; 2104a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2114a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2124a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallint BandwidthController::enableBandwidthControl(void) { 213fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res; 2148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 215db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Let's pretend we started from scratch ... */ 2168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaIfaces.clear(); 2178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.clear(); 2188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall naughtyAppUids.clear(); 219db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall globalAlertBytes = 0; 220db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall sharedQuotaBytes = sharedAlertBytes = 0; 221db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 222db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 223db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Some of the initialCommands are allowed to fail */ 224db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall runCommands(sizeof(IPT_CLEANUP_COMMANDS) / sizeof(char*), 225db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_CLEANUP_COMMANDS, RunCmdFailureOk); 226db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall runCommands(sizeof(IPT_SETUP_COMMANDS) / sizeof(char*), 227db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_SETUP_COMMANDS, RunCmdFailureOk); 228db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall res = runCommands(sizeof(IPT_BASIC_ACCOUNTING_COMMANDS) / sizeof(char*), 229db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_BASIC_ACCOUNTING_COMMANDS, RunCmdFailureBad); 2308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 231fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 2324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2344a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2354a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrallint BandwidthController::disableBandwidthControl(void) { 236db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* The IPT_CLEANUP_COMMANDS are allowed to fail. */ 237db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall runCommands(sizeof(IPT_CLEANUP_COMMANDS) / sizeof(char*), 238db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall IPT_CLEANUP_COMMANDS, RunCmdFailureOk); 239fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 2404a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 2414a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 2428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runCommands(int numCommands, const char *commands[], 2438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall RunCmdErrHandling cmdErrHandling) { 244fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 245db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("runCommands(): %d commands", numCommands); 246fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (int cmdNum = 0; cmdNum < numCommands; cmdNum++) { 24726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res = runIpxtablesCmd(commands[cmdNum], IptRejectNoAdd); 24826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (res && cmdErrHandling != RunCmdFailureBad) 249fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 250fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 25126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return cmdErrHandling == RunCmdFailureBad ? res : 0; 252fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 253fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 2540dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallstd::string BandwidthController::makeIptablesNaughtyCmd(IptOp op, int uid) { 255fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 2568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 2578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 258fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 259fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 2608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 2618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 2628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 2638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 2648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 2658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 2668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 2678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 2688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 2698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 270fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 2718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s penalty_box -m owner --uid-owner %d", opFlag, uid); 2728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 2738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 274fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 275fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 276fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 277fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::addNaughtyApps(int numUids, char *appUids[]) { 27826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpAdd); 279fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 280fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 281fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeNaughtyApps(int numUids, char *appUids[]) { 28226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return maninpulateNaughtyApps(numUids, appUids, NaughtyAppOpRemove); 283fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 284fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 28526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::maninpulateNaughtyApps(int numUids, char *appStrUids[], NaughtyAppOp appOp) { 286fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall char cmd[MAX_CMD_LEN]; 287fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int uidNum; 28826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *failLogTemplate; 28926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall IptOp op; 290fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int appUids[numUids]; 29126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string naughtyCmd; 2928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 29326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (appOp) { 29426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpAdd: 2958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpInsert; 2968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to add app uid %d to penalty box."; 2978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 29826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case NaughtyAppOpRemove: 2998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall op = IptOpDelete; 3008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall failLogTemplate = "Failed to delete app uid %d from penalty box."; 3018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 30226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 30326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 304fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 305fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall appUids[uidNum] = atol(appStrUids[uidNum]); 306fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (appUids[uidNum] == 0) { 30726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE(failLogTemplate, appUids[uidNum]); 308fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_parse; 309fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 310fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 311fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 312fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall for (uidNum = 0; uidNum < numUids; uidNum++) { 31326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(op, appUids[uidNum]); 31426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd)) { 31526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE(failLogTemplate, appUids[uidNum]); 316fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail_with_uidNum; 317fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 318fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 319fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return 0; 320fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 32126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_with_uidNum: 322fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall /* Try to remove the uid that failed in any case*/ 32326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall naughtyCmd = makeIptablesNaughtyCmd(IptOpDelete, appUids[uidNum]); 32426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall runIpxtablesCmd(naughtyCmd.c_str(), IptRejectAdd); 32526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallfail_parse: 32626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 3274a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 3284a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 32926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallstd::string BandwidthController::makeIptablesQuotaCmd(IptOp op, const char *costName, int64_t quota) { 330fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string res; 3318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *buff; 3328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 3330dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 334db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("makeIptablesQuotaCmd(%d, %lld)", op, quota); 3350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 336fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall switch (op) { 3378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 3388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 3398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 3418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 3428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 3438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 3448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 3458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 3468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 347fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 3488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 349bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall // The requried IP version specific --jump REJECT ... will be added later. 3508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&buff, "%s costly_%s -m quota2 ! --quota %lld --name %s", opFlag, costName, quota, 3518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall costName); 3528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = buff; 3538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(buff); 3540dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 3550dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 3560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 35726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::prepCostlyIface(const char *ifn, QuotaType quotaType) { 3580dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 3590dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 3608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int ruleInsertPos = 1; 3610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 3620dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 3630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 3640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* The "-N costly" is created upfront, no need to handle it here. */ 36526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 36626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 367bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 3680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 3690dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 3700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-N %s", costCString); 37126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 3720dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s -j penalty_box", costCString); 37326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 3740dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s -m owner --socket-exists", costCString); 37526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 3760dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* TODO(jpa): Figure out why iptables doesn't correctly return from this 3770dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * chain. For now, hack the chain exit with an ACCEPT. 3780dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 3790dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-A %s --jump ACCEPT", costCString); 38026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 38126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 38226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 383bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 38426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 3850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 3860dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 3878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 3888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* The alert rule comes 1st */ 3898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ruleInsertPos = 2; 3908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 3918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall snprintf(cmd, sizeof(cmd), "-I INPUT %d -i %s --goto %s", ruleInsertPos, ifn, costCString); 39226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 3938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall snprintf(cmd, sizeof(cmd), "-I OUTPUT %d -o %s --goto %s", ruleInsertPos, ifn, costCString); 39426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 3950dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 3960dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 3970dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 39826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrallint BandwidthController::cleanupCostlyIface(const char *ifn, QuotaType quotaType) { 3990dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char cmd[MAX_CMD_LEN]; 4000dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 4010dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::string costString; 4020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall const char *costCString; 4030dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 40426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall switch (quotaType) { 40526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaUnique: 406bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costString = "costly_"; 4070dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costString += ifn; 4080dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall costCString = costString.c_str(); 40926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 41026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall case QuotaShared: 411bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall costCString = "costly_shared"; 41226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall break; 4130dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 4140dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 4150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-D INPUT -i %s --goto %s", ifn, costCString); 41626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4170dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-D OUTPUT -o %s --goto %s", ifn, costCString); 41826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 4190dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 420bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall /* The "-N costly_shared" is created upfront, no need to handle it here. */ 42126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (quotaType == QuotaUnique) { 4220dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall snprintf(cmd, sizeof(cmd), "-F %s", costCString); 42326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 424a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall snprintf(cmd, sizeof(cmd), "-X %s", costCString); 425a9f802c23f4c2c53fa1065b75f712ce46f384c3aJP Abgrall res |= runIpxtablesCmd(cmd, IptRejectNoAdd); 426fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 427fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return res; 428fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall} 4294a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4300dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceSharedQuota(const char *iface, int64_t maxBytes) { 4314a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char cmd[MAX_CMD_LEN]; 4324a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 433fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 43426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 4358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::string ifaceName; 4368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ; 437bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 43826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<std::string>::iterator it; 4394a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 4418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 4428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 4438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 4448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 44526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 44626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 44726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 44826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 44926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 4504a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4514a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (maxBytes == -1) { 452fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return removeInterfaceSharedQuota(ifn); 4534a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 4544a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4554a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* Insert ingress quota. */ 4560dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 4570dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 458fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 4594a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 460fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 4610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 46226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaShared); 4630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 4640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 46526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 4664a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall if (res) { 4678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Failed set quota rule"); 468fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 4694a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 470fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 471fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 4720dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.push_front(ifaceName); 473fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 474fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 475fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 476fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (maxBytes != sharedQuotaBytes) { 4778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 478fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall if (res) { 4798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Failed update quota for %s", costName); 480fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall goto fail; 481fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 482fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall sharedQuotaBytes = maxBytes; 4834a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 4844a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return 0; 485fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 486fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall fail: 4874a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall /* 4884a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 4894a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall * rules in the kernel to see which ones need cleaning up. 490fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 491fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall * which resets everything. 4924a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall */ 493fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall removeInterfaceSharedQuota(ifn); 4944a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return -1; 4954a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 4964a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 4978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall/* It will also cleanup any shared alerts */ 498fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrallint BandwidthController::removeInterfaceSharedQuota(const char *iface) { 4994a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall char ifn[MAX_IFACENAME_LEN]; 500fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall int res = 0; 50126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 5020dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall std::list<std::string>::iterator it; 503bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall const char *costName = "shared"; 5044a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall 5058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 50626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 50726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 50826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 5098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall ifaceName = ifn; 51026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 5110dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = sharedQuotaIfaces.begin(); it != sharedQuotaIfaces.end(); it++) { 5120dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (*it == ifaceName) 513fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall break; 5144a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 5150dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == sharedQuotaIfaces.end()) { 5168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("No such iface %s to delete", ifn); 517fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall return -1; 5184a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall } 519fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 52026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaShared); 5210dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall sharedQuotaIfaces.erase(it); 522fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall 5230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (sharedQuotaIfaces.empty()) { 524fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall std::string quotaCmd; 525bfa7466b328101a8b04807f26e85c84526c9a774JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpDelete, costName, sharedQuotaBytes); 52626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 5278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedQuotaBytes = 0; 5288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (sharedAlertBytes) { 5298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall removeSharedAlert(); 5308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall sharedAlertBytes = 0; 5318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 532fa6f46d3370ae5475fc3bc8273bbe04ee7348d60JP Abgrall } 5334a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall return res; 5344a5f5ca3c9e07fc3e6feca2afde07f41a8a64f11JP Abgrall} 5350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5360dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::setInterfaceQuota(const char *iface, int64_t maxBytes) { 5370dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 5380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 53926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 54026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 54126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 54226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string quotaCmd; 5430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!maxBytes) { 5458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall /* Don't talk about -1, deprecate it. */ 5468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 5478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 5488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 5490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (maxBytes == -1) { 55026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return removeInterfaceQuota(iface); 5510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5520dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 55426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 55526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 55626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 55726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 55826e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 55926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall 5600dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* Insert ingress quota. */ 5610dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 5628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 5630dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 5640dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5650dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5660dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 56726e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= prepCostlyIface(ifn, QuotaUnique); 5680dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaCmd = makeIptablesQuotaCmd(IptOpInsert, costName, maxBytes); 56926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= runIpxtablesCmd(quotaCmd.c_str(), IptRejectAdd); 5700dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 5718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Failed set quota rule"); 5720dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 5730dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5740dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall quotaIfaces.push_front(QuotaInfo(ifaceName, maxBytes, 0)); 5760dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5770dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } else { 5788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= updateQuota(costName, maxBytes); 5790dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (res) { 5808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Failed update quota for %s", iface); 5810dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall goto fail; 5820dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall it->quota = maxBytes; 5840dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 5850dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return 0; 5860dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5870dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall fail: 5880dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* 5890dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * TODO(jpa): once we get rid of iptables in favor of rtnetlink, reparse 5900dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * rules in the kernel to see which ones need cleaning up. 5910dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * For now callers needs to choose if they want to "ndc bandwidth enable" 5920dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall * which resets everything. 5930dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall */ 5940dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall removeInterfaceSharedQuota(ifn); 5950dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 5960dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 5970dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 5988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceSharedQuota(int64_t *bytes) { 5998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return getInterfaceQuota("shared", bytes); 6008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::getInterfaceQuota(const char *costName, int64_t *bytes) { 6038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 6048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 6058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int scanRes; 6068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", costName); 6088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "r"); 6098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 6108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 6118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Reading quota %s failed (%s)", costName, strerror(errno)); 6128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6138a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall scanRes = fscanf(fp, "%lld", bytes); 615db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("Read quota res=%d bytes=%lld", scanRes, *bytes); 6168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 6178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return scanRes == 1 ? 0 : -1; 6188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6200dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrallint BandwidthController::removeInterfaceQuota(const char *iface) { 6210dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6220dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall char ifn[MAX_IFACENAME_LEN]; 6230dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall int res = 0; 62426e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::string ifaceName; 62526e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall const char *costName; 62626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall std::list<QuotaInfo>::iterator it; 6270dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (StrncpyAndCheck(ifn, iface, sizeof(ifn))) { 62926e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall LOGE("Interface name longer than %d", MAX_IFACENAME_LEN); 63026e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall return -1; 63126e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall } 63226e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall ifaceName = ifn; 63326e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall costName = iface; 6340dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6350dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 6368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == ifaceName) 6370dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall break; 6380dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6390dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6400dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall if (it == quotaIfaces.end()) { 6418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("No such iface %s to delete", ifn); 6420dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return -1; 6430dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall } 6440dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6450dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall /* This also removes the quota command of CostlyIface chain. */ 64626e0d49fa743d7881104196a9eda733bd2aac92fJP Abgrall res |= cleanupCostlyIface(ifn, QuotaUnique); 6470dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6480dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall quotaIfaces.erase(it); 6490dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall 6500dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall return res; 6510dad7c2f1f6994fbe5e85b9e1fc72d29d6453211JP Abgrall} 6528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::updateQuota(const char *quotaName, int64_t bytes) { 6548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall FILE *fp; 6558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *fname; 6568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&fname, "/proc/net/xt_quota/%s", quotaName); 6588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fp = fopen(fname, "w"); 6598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(fname); 6608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!fp) { 6618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Updating quota %s failed (%s)", quotaName, strerror(errno)); 6628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 6638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fprintf(fp, "%lld\n", bytes); 6658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall fclose(fp); 6668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return 0; 6678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 6688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::runIptablesAlertCmd(IptOp op, const char *alertName, int64_t bytes) { 6708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 6718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *opFlag; 672876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall const char *ifaceLimiting; 6738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 6748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 6758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall switch (op) { 6768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpInsert: 6778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-I"; 6788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 6798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpReplace: 6808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-R"; 6818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 6828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall default: 6838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall case IptOpDelete: 6848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall opFlag = "-D"; 6858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 6868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 6878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 688876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall ifaceLimiting = "! -i lo+"; 689876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, ifaceLimiting, opFlag, "INPUT", 690876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall bytes, alertName, alertName); 6918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 6928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 693876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall ifaceLimiting = "! -o lo+"; 694876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, ifaceLimiting, opFlag, "OUTPUT", 695876666947664c718a8d0cae9bbddb06cc91f912cJP Abgrall bytes, alertName, alertName); 6968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 6978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 6988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 6998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setGlobalAlert(int64_t bytes) { 7028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 7038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *alertName = "globalAlert"; 7048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 7078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 7088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (globalAlertBytes) { 7118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, bytes); 7128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 7138a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpInsert, alertName, bytes); 7148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = bytes; 7168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 7178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeGlobalAlert(void) { 7208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 7218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall const char *alertName = "globalAlert"; 7238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!globalAlertBytes) { 7268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("No prior alert set"); 7278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = runIptablesAlertCmd(IptOpDelete, alertName, globalAlertBytes); 7308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall globalAlertBytes = 0; 7318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 7328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7348a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setSharedAlert(int64_t bytes) { 7358a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!sharedQuotaBytes) { 7368a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Need to have a prior shared quota set to set an alert"); 7378a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7388a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7398a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 7408a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 7418a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7428a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7438a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert("shared", bytes, &sharedAlertBytes); 7448a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7458a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7468a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeSharedAlert(void) { 7478a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert("shared", &sharedAlertBytes); 7488a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7498a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7508a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setInterfaceAlert(const char *iface, int64_t bytes) { 7518a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 7528a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7538a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 7548a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 7558a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7568a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7578a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 7588a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 7598a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7608a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7618a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7628a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 7638a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Need to have a prior interface quota set to set an alert"); 7648a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7658a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7668a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7678a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return setCostlyAlert(iface, bytes, &it->alert); 7688a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7698a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7708a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeInterfaceAlert(const char *iface) { 7718a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall std::list<QuotaInfo>::iterator it; 7728a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7738a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall for (it = quotaIfaces.begin(); it != quotaIfaces.end(); it++) { 7748a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it->ifaceName == iface) 7758a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall break; 7768a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7778a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7788a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (it == quotaIfaces.end()) { 7798a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("No prior alert set for interface %s", iface); 7808a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7818a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7828a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7838a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return removeCostlyAlert(iface, &it->alert); 7848a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 7858a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7868a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::setCostlyAlert(const char *costName, int64_t bytes, int64_t *alertBytes) { 7878a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 7888a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainNameAndPos; 7898a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 7908a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 7918a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 7928a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!bytes) { 7938a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("Invalid bytes value. 1..max_int64."); 7948a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 7958a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 7968a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 7978a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (*alertBytes) { 7988a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res = updateQuota(alertName, *alertBytes); 7998a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } else { 8008a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainNameAndPos, "costly_%s %d", costName, ALERT_RULE_POS_IN_COSTLY_CHAIN); 8018a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-I", chainNameAndPos, bytes, alertName, 8028a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall alertName); 8038a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 8048a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 8058a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainNameAndPos); 8068a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8078a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = bytes; 8088a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 8098a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8108a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 8118a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8128a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrallint BandwidthController::removeCostlyAlert(const char *costName, int64_t *alertBytes) { 8138a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertQuotaCmd; 8148a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *chainName; 8158a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall char *alertName; 8168a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall int res = 0; 8178a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8188a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertName, "%sAlert", costName); 8198a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall if (!*alertBytes) { 8208a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall LOGE("No prior alert set for %s alert", costName); 8218a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return -1; 8228a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall } 8238a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8248a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&chainName, "costly_%s", costName); 8258a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall asprintf(&alertQuotaCmd, ALERT_IPT_TEMPLATE, "-D", chainName, *alertBytes, alertName, alertName); 8268a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall res |= runIpxtablesCmd(alertQuotaCmd, IptRejectNoAdd); 8278a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertQuotaCmd); 8288a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(chainName); 8298a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall 8308a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall *alertBytes = 0; 8318a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall free(alertName); 8328a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall return res; 8338a93272255f1b7e3083a97e1e28ddf675c0c7fb0JP Abgrall} 834db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 835db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall/* 836db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Parse the ptks and bytes out of: 837db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Chain FORWARD (policy ACCEPT 0 packets, 0 bytes) 838db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * pkts bytes target prot opt in out source destination 839db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 0 0 ACCEPT all -- rmnet0 wlan0 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 840db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 0 0 DROP all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 state INVALID 841db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 0 0 ACCEPT all -- wlan0 rmnet0 0.0.0.0/0 0.0.0.0/0 842db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * 843db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 844db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallint BandwidthController::parseForwardChainStats(TetherStats &stats, FILE *fp) { 845db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 846db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char lineBuffer[MAX_IPT_OUTPUT_LINE_LEN]; 847db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface0[MAX_IPT_OUTPUT_LINE_LEN]; 848db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char iface1[MAX_IPT_OUTPUT_LINE_LEN]; 849db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char rest[MAX_IPT_OUTPUT_LINE_LEN]; 850db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 851db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *buffPtr; 852db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int64_t packets, bytes; 853db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 854db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall while (NULL != (buffPtr = fgets(lineBuffer, MAX_IPT_OUTPUT_LINE_LEN, fp))) { 855db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Clean up, so a failed parse can still print info */ 856db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0[0] = iface1[0] = rest[0] = packets = bytes = 0; 857db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall res = sscanf(buffPtr, "%lld %lld ACCEPT all -- %s %s 0.%s", 858db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall &packets, &bytes, iface0, iface1, rest); 859db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("parse res=%d iface0=<%s> iface1=<%s> pkts=%lld bytes=%lld rest=<%s> orig line=<%s>", res, 860db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iface0, iface1, packets, bytes, rest, buffPtr); 861db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (res != 5) { 862db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall continue; 863db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 864db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if ((stats.ifaceIn == iface0) && (stats.ifaceOut == iface1)) { 865db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("iface_in=%s iface_out=%s rx_bytes=%lld rx_packets=%lld ", iface0, iface1, bytes, packets); 866db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxPackets = packets; 867db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.rxBytes = bytes; 868db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } else if ((stats.ifaceOut == iface0) && (stats.ifaceIn == iface1)) { 869db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGV("iface_in=%s iface_out=%s tx_bytes=%lld tx_packets=%lld ", iface1, iface0, bytes, packets); 870db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txPackets = packets; 871db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall stats.txBytes = bytes; 872db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 873db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 874db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Failure if rx or tx was not found */ 875db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return (stats.rxBytes == -1 || stats.txBytes == -1) ? -1 : 0; 876db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 877db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 878db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 879db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallchar *BandwidthController::TetherStats::getStatsLine(void) { 880db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall char *msg; 881db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall asprintf(&msg, "%s %s %lld %lld %lld %lld", ifaceIn.c_str(), ifaceOut.c_str(), 882db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall rxBytes, rxPackets, txBytes, txPackets); 883db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return msg; 884db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 885db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 886db7da58e8d2aa021060098057f944ef754be06e3JP Abgrallint BandwidthController::getTetherStats(TetherStats &stats) { 887db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall int res; 888db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall std::string fullCmd; 889db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall FILE *iptOutput; 890db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall const char *cmd; 891db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 892db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (stats.rxBytes != -1 || stats.txBytes != -1) { 893db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGE("Unexpected input stats. Byte counts should be -1."); 894db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 895db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 896db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 897db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* 898db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Why not use some kind of lib to talk to iptables? 899db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * Because the only libs are libiptc and libip6tc in iptables, and they are 900db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * not easy to use. They require the known iptables match modules to be 901db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * preloaded/linked, and require apparently a lot of wrapper code to get 902db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall * the wanted info. 903db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall */ 904db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall fullCmd = IPTABLES_PATH; 905db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall fullCmd += " -nvx -L FORWARD"; 906db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall iptOutput = popen(fullCmd.c_str(), "r"); 907db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall if (!iptOutput) { 908db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall LOGE("Failed to run %s err=%s", fullCmd.c_str(), strerror(errno)); 909db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return -1; 910db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall } 911db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall res = parseForwardChainStats(stats, iptOutput); 912db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall pclose(iptOutput); 913db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall 914db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall /* Currently NatController doesn't do ipv6 tethering, so we are done. */ 915db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall return res; 916db7da58e8d2aa021060098057f944ef754be06e3JP Abgrall} 917