| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| /* This file is used to define the internal protocol for the Android Logger */ |
| |
| #pragma once |
| |
| /* Android private interfaces */ |
| |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #ifdef __cplusplus |
| #include <string> |
| #endif |
| |
| #include <log/log.h> |
| #include <log/log_event_list.h> |
| |
| #define LOGGER_MAGIC 'l' |
| |
| #if defined(__cplusplus) |
| extern "C" { |
| #endif |
| |
| /* Header Structure to pstore */ |
| typedef struct __attribute__((__packed__)) { |
| uint8_t magic; |
| uint16_t len; |
| uint16_t uid; |
| uint16_t pid; |
| } android_pmsg_log_header_t; |
| |
| /* Header Structure to logd, and second header for pstore */ |
| typedef struct __attribute__((__packed__)) { |
| typeof_log_id_t id; |
| uint16_t tid; |
| log_time realtime; |
| } android_log_header_t; |
| |
| /* Event Header Structure to logd */ |
| typedef struct __attribute__((__packed__)) { |
| int32_t tag; // Little Endian Order |
| } android_event_header_t; |
| |
| /* Event payload EVENT_TYPE_INT */ |
| typedef struct __attribute__((__packed__)) { |
| int8_t type; // EVENT_TYPE_INT |
| int32_t data; // Little Endian Order |
| } android_event_int_t; |
| |
| /* Event with single EVENT_TYPE_INT */ |
| typedef struct __attribute__((__packed__)) { |
| android_event_header_t header; |
| android_event_int_t payload; |
| } android_log_event_int_t; |
| |
| /* Event payload EVENT_TYPE_LONG */ |
| typedef struct __attribute__((__packed__)) { |
| int8_t type; // EVENT_TYPE_LONG |
| int64_t data; // Little Endian Order |
| } android_event_long_t; |
| |
| /* Event with single EVENT_TYPE_LONG */ |
| typedef struct __attribute__((__packed__)) { |
| android_event_header_t header; |
| android_event_long_t payload; |
| } android_log_event_long_t; |
| |
| /* |
| * Event payload EVENT_TYPE_STRING |
| * |
| * Danger: do not embed this structure into another structure. |
| * This structure uses a flexible array member, and when |
| * compiled using g++, __builtin_object_size(data, 1) returns |
| * a bad value. This is possibly a g++ bug, or a bug due to |
| * the fact that flexible array members are not supported |
| * in C++. |
| * http://stackoverflow.com/questions/4412749/are-flexible-array-members-valid-in-c |
| */ |
| |
| typedef struct __attribute__((__packed__)) { |
| int8_t type; // EVENT_TYPE_STRING; |
| int32_t length; // Little Endian Order |
| char data[]; |
| } android_event_string_t; |
| |
| /* Event with single EVENT_TYPE_STRING */ |
| typedef struct __attribute__((__packed__)) { |
| android_event_header_t header; |
| int8_t type; // EVENT_TYPE_STRING; |
| int32_t length; // Little Endian Order |
| char data[]; |
| } android_log_event_string_t; |
| |
| #define ANDROID_LOG_PMSG_FILE_MAX_SEQUENCE 256 /* 1MB file */ |
| #define ANDROID_LOG_PMSG_FILE_SEQUENCE 1000 |
| |
| ssize_t __android_log_pmsg_file_write(log_id_t logId, char prio, |
| const char* filename, const char* buf, |
| size_t len); |
| |
| #define LOG_ID_ANY ((log_id_t)-1) |
| #define ANDROID_LOG_ANY ANDROID_LOG_UNKNOWN |
| |
| /* first 5 arguments match __android_log_msg_file_write, a cast is safe */ |
| typedef ssize_t (*__android_log_pmsg_file_read_fn)(log_id_t logId, char prio, |
| const char* filename, |
| const char* buf, size_t len, |
| void* arg); |
| |
| ssize_t __android_log_pmsg_file_read(log_id_t logId, char prio, |
| const char* prefix, |
| __android_log_pmsg_file_read_fn fn, |
| void* arg); |
| |
| int __android_log_security_bwrite(int32_t tag, const void* payload, size_t len); |
| int __android_log_security_bswrite(int32_t tag, const char* payload); |
| int __android_log_security(); /* Device Owner is present */ |
| |
| #define BOOL_DEFAULT_FLAG_TRUE_FALSE 0x1 |
| #define BOOL_DEFAULT_FALSE 0x0 /* false if property not present */ |
| #define BOOL_DEFAULT_TRUE 0x1 /* true if property not present */ |
| #define BOOL_DEFAULT_FLAG_PERSIST 0x2 /* <key>, persist.<key>, ro.<key> */ |
| #define BOOL_DEFAULT_FLAG_ENG 0x4 /* off for user */ |
| #define BOOL_DEFAULT_FLAG_SVELTE 0x8 /* off for low_ram */ |
| bool __android_logger_property_get_bool(const char* key, int flag); |
| |
| #define LOG_BUFFER_SIZE (256 * 1024) /* Tuned with ro.logd.size per-platform \ |
| */ |
| #define LOG_BUFFER_MIN_SIZE (64 * 1024UL) |
| #define LOG_BUFFER_MAX_SIZE (256 * 1024 * 1024UL) |
| unsigned long __android_logger_get_buffer_size(log_id_t logId); |
| bool __android_logger_valid_buffer_size(unsigned long value); |
| |
| /* Retrieve the composed event buffer */ |
| int android_log_write_list_buffer(android_log_context ctx, const char** msg); |
| |
| #if defined(__cplusplus) |
| } |
| #endif |