| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #define LOG_TAG "NetlinkEvent" |
| #include <cutils/log.h> |
| |
| #include <sysutils/NetlinkEvent.h> |
| |
| const int NetlinkEvent::NlActionUnknown = 0; |
| const int NetlinkEvent::NlActionAdd = 1; |
| const int NetlinkEvent::NlActionRemove = 2; |
| const int NetlinkEvent::NlActionChange = 3; |
| |
| NetlinkEvent::NetlinkEvent() { |
| mAction = NlActionUnknown; |
| memset(mParams, 0, sizeof(mParams)); |
| mPath = NULL; |
| mSubsystem = NULL; |
| } |
| |
| NetlinkEvent::~NetlinkEvent() { |
| int i; |
| if (mPath) |
| free(mPath); |
| if (mSubsystem) |
| free(mSubsystem); |
| for (i = 0; i < NL_PARAMS_MAX; i++) { |
| if (!mParams[i]) |
| break; |
| free(mParams[i]); |
| } |
| } |
| |
| void NetlinkEvent::dump() { |
| int i; |
| |
| for (i = 0; i < NL_PARAMS_MAX; i++) { |
| if (!mParams[i]) |
| break; |
| SLOGD("NL param '%s'\n", mParams[i]); |
| } |
| } |
| |
| bool NetlinkEvent::decode(char *buffer, int size) { |
| char *s = buffer; |
| char *end; |
| int param_idx = 0; |
| int i; |
| int first = 1; |
| |
| end = s + size; |
| while (s < end) { |
| if (first) { |
| char *p; |
| for (p = s; *p != '@'; p++); |
| p++; |
| mPath = strdup(p); |
| first = 0; |
| } else { |
| if (!strncmp(s, "ACTION=", strlen("ACTION="))) { |
| char *a = s + strlen("ACTION="); |
| if (!strcmp(a, "add")) |
| mAction = NlActionAdd; |
| else if (!strcmp(a, "remove")) |
| mAction = NlActionRemove; |
| else if (!strcmp(a, "change")) |
| mAction = NlActionChange; |
| } else if (!strncmp(s, "SEQNUM=", strlen("SEQNUM="))) |
| mSeq = atoi(s + strlen("SEQNUM=")); |
| else if (!strncmp(s, "SUBSYSTEM=", strlen("SUBSYSTEM="))) |
| mSubsystem = strdup(s + strlen("SUBSYSTEM=")); |
| else |
| mParams[param_idx++] = strdup(s); |
| } |
| s+= strlen(s) + 1; |
| } |
| return true; |
| } |
| |
| const char *NetlinkEvent::findParam(const char *paramName) { |
| int i; |
| |
| for (i = 0; i < NL_PARAMS_MAX; i++) { |
| if (!mParams[i]) |
| break; |
| if (!strncmp(mParams[i], paramName, strlen(paramName))) |
| return &mParams[i][strlen(paramName) + 1]; |
| } |
| |
| SLOGE("NetlinkEvent::FindParam(): Parameter '%s' not found", paramName); |
| return NULL; |
| } |