NetlinkEvent.cpp revision 3d40729054803fae1c4d4bb5ac7554665a132b26
1168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat/* 2168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Copyright (C) 2008 The Android Open Source Project 3168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 4168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Licensed under the Apache License, Version 2.0 (the "License"); 5168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * you may not use this file except in compliance with the License. 6168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * You may obtain a copy of the License at 7168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 8168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * http://www.apache.org/licenses/LICENSE-2.0 9168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * 10168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * Unless required by applicable law or agreed to in writing, software 11168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * distributed under the License is distributed on an "AS IS" BASIS, 12168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * See the License for the specific language governing permissions and 14168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat * limitations under the License. 15168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat */ 16168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <stdlib.h> 173d40729054803fae1c4d4bb5ac7554665a132b26San Mehat#include <string.h> 18168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 19168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#define LOG_TAG "NetlinkEvent" 20168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <cutils/log.h> 21168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 22168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat#include <sysutils/NetlinkEvent.h> 23168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 24168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatconst int NetlinkEvent::NlActionUnknown = 0; 25168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatconst int NetlinkEvent::NlActionAdd = 1; 26168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatconst int NetlinkEvent::NlActionRemove = 2; 27168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatconst int NetlinkEvent::NlActionChange = 3; 28168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 29168415b822cae1f8b54ef09c41c11a9b97b87f40San MehatNetlinkEvent::NetlinkEvent() { 30168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mAction = NlActionUnknown; 31168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 32168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 33168415b822cae1f8b54ef09c41c11a9b97b87f40San MehatNetlinkEvent::~NetlinkEvent() { 34168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat int i; 35168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (mPath) 36168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat free(mPath); 37168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (mSubsystem) 38168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat free(mSubsystem); 39168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat for (i = 0; i < NL_PARAMS_MAX; i++) { 40168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (!mParams[i]) 41168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat break; 42168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat free(mParams[i]); 43168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } 44168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 45168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 46168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatbool NetlinkEvent::decode(char *buffer, int size) { 47168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat char *s = buffer; 48168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat char *end; 49168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat int param_idx = 0; 50168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat int i; 51168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat int first = 1; 52168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 53168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat end = s + size; 54168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat while (s < end) { 55168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (first) { 56168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat char *p; 57168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat for (p = s; *p != '@'; p++); 58168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat p++; 59168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mPath = strdup(p); 60168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat first = 0; 61168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } else { 62168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (!strncmp(s, "ACTION=", strlen("ACTION="))) { 63168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat char *a = s + strlen("ACTION="); 64168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (!strcmp(a, "add")) 65168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mAction = NlActionAdd; 66168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat else if (!strcmp(a, "remove")) 67168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mAction = NlActionRemove; 68168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat else if (!strcmp(a, "change")) 69168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mAction = NlActionChange; 70168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } else if (!strncmp(s, "SEQNUM=", strlen("SEQNUM="))) 71168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mSeq = atoi(s + strlen("SEQNUM=")); 72168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat else if (!strncmp(s, "SUBSYSTEM=", strlen("SUBSYSTEM="))) 73168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mSubsystem = strdup(s + strlen("SUBSYSTEM=")); 74168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat else 75168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat mParams[param_idx++] = strdup(s); 76168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } 77168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat s+= strlen(s) + 1; 78168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } 79168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat return true; 80168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 81168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 82168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehatconst char *NetlinkEvent::findParam(const char *paramName) { 83168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat int i; 84168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 85168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat for (i = 0; i < NL_PARAMS_MAX; i++) { 86168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (!mParams[i]) 87168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat break; 88168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat if (!strncmp(mParams[i], paramName, strlen(paramName))) 89168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat return &mParams[i][strlen(paramName) + 1]; 90168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat } 91168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat 92168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat LOGE("NetlinkEvent::FindParam(): Parameter '%s' not found", paramName); 93168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat return NULL; 94168415b822cae1f8b54ef09c41c11a9b97b87f40San Mehat} 95