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/* include/linux/logger.h
*
* Copyright (C) 2007-2008 Google, Inc.
* Author: Robert Love <rlove@android.com>
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _LINUX_LOGGER_H
#define _LINUX_LOGGER_H
#include <linux/types.h>
#include <linux/ioctl.h>
/**
* struct user_logger_entry_compat - defines a single entry that is given to a logger
* @len: The length of the payload
* @__pad: Two bytes of padding that appear to be required
* @pid: The generating process' process ID
* @tid: The generating process' thread ID
* @sec: The number of seconds that have elapsed since the Epoch
* @nsec: The number of nanoseconds that have elapsed since @sec
* @msg: The message that is to be logged
*
* The userspace structure for version 1 of the logger_entry ABI.
* This structure is returned to userspace unless the caller requests
* an upgrade to a newer ABI version.
*/
struct user_logger_entry_compat {
__u16 len;
__u16 __pad;
__s32 pid;
__s32 tid;
__s32 sec;
__s32 nsec;
char msg[0];
};
/**
* struct logger_entry - defines a single entry that is given to a logger
* @len: The length of the payload
* @hdr_size: sizeof(struct logger_entry_v2)
* @pid: The generating process' process ID
* @tid: The generating process' thread ID
* @sec: The number of seconds that have elapsed since the Epoch
* @nsec: The number of nanoseconds that have elapsed since @sec
* @euid: Effective UID of logger
* @msg: The message that is to be logged
*
* The structure for version 2 of the logger_entry ABI.
* This structure is returned to userspace if ioctl(LOGGER_SET_VERSION)
* is called with version >= 2
*/
struct logger_entry {
__u16 len;
__u16 hdr_size;
__s32 pid;
__s32 tid;
__s32 sec;
__s32 nsec;
kuid_t euid;
char msg[0];
};
#define LOGGER_LOG_RADIO "log_radio" /* radio-related messages */
#define LOGGER_LOG_EVENTS "log_events" /* system/hardware events */
#define LOGGER_LOG_SYSTEM "log_system" /* system/framework messages */
#define LOGGER_LOG_MAIN "log_main" /* everything else */
#define LOGGER_ENTRY_MAX_PAYLOAD 4076
#define __LOGGERIO 0xAE
#define LOGGER_GET_LOG_BUF_SIZE _IO(__LOGGERIO, 1) /* size of log */
#define LOGGER_GET_LOG_LEN _IO(__LOGGERIO, 2) /* used log len */
#define LOGGER_GET_NEXT_ENTRY_LEN _IO(__LOGGERIO, 3) /* next entry len */
#define LOGGER_FLUSH_LOG _IO(__LOGGERIO, 4) /* flush log */
#define LOGGER_GET_VERSION _IO(__LOGGERIO, 5) /* abi version */
#define LOGGER_SET_VERSION _IO(__LOGGERIO, 6) /* abi version */
#endif /* _LINUX_LOGGER_H */
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