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185 lines
4.4 KiB
185 lines
4.4 KiB
/**
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* xrdp: A Remote Desktop Protocol server.
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*
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* Copyright (C) Jay Sorg 2004-2014
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LOG_H
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#define LOG_H
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#include <pthread.h>
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#include "arch.h"
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/* logging buffer size */
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#define LOG_BUFFER_SIZE 1024
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/* logging levels */
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enum logLevels
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{
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LOG_LEVEL_ALWAYS = 0,
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LOG_LEVEL_ERROR,
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LOG_LEVEL_WARNING,
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LOG_LEVEL_INFO,
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LOG_LEVEL_DEBUG,
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LOG_LEVEL_TRACE
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};
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/* startup return values */
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enum logReturns
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{
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LOG_STARTUP_OK = 0,
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LOG_ERROR_MALLOC,
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LOG_ERROR_NULL_FILE,
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LOG_ERROR_FILE_OPEN,
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LOG_ERROR_NO_CFG,
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LOG_ERROR_FILE_NOT_OPEN,
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LOG_GENERAL_ERROR
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};
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#define SESMAN_CFG_LOGGING "Logging"
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#define SESMAN_CFG_LOG_FILE "LogFile"
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#define SESMAN_CFG_LOG_LEVEL "LogLevel"
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#define SESMAN_CFG_LOG_ENABLE_SYSLOG "EnableSyslog"
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#define SESMAN_CFG_LOG_SYSLOG_LEVEL "SyslogLevel"
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/* enable threading */
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/*#define LOG_ENABLE_THREAD*/
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#ifdef XRDP_DEBUG
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#define LOG_DBG(args...) log_message(LOG_LEVEL_DEBUG, args);
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#else
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#define LOG_DBG(args...)
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#endif
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struct log_config
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{
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const char *program_name;
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char *log_file;
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int fd;
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enum logLevels log_level;
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int enable_syslog;
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enum logLevels syslog_level;
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pthread_mutex_t log_lock;
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pthread_mutexattr_t log_lock_attr;
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};
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/* internal functions, only used in log.c if this ifdef is defined.*/
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#ifdef LOGINTERNALSTUFF
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/**
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*
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* @brief Starts the logging subsystem
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* @param l_cfg logging system configuration
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* @return
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*
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*/
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enum logReturns
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internal_log_start(struct log_config *l_cfg);
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/**
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*
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* @brief Shuts down the logging subsystem
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* @param l_cfg pointer to the logging subsystem to stop
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*
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*/
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enum logReturns
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internal_log_end(struct log_config *l_cfg);
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/**
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* Converts a log level to a string
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* @param lvl, the loglevel
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* @param str pointer where the string will be stored.
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*/
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void
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internal_log_lvl2str(const enum logLevels lvl, char *str);
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/**
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*
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* @brief Converts a string to a log level
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* @param s The string to convert
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* @return The corresponding level or LOG_LEVEL_DEBUG if error
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*
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*/
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enum logLevels
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internal_log_text2level(const char *s);
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/**
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* A function that init our struct that holds all state and
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* also init its content.
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* @return LOG_STARTUP_OK or LOG_ERROR_MALLOC
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*/
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enum logReturns
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internalInitAndAllocStruct(void);
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/**
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* Read configuration from a file and store the values in lists.
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* @param file
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* @param lc
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* @param param_n
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* @param param_v
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* @param applicationName, the application name used in the log events.
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* @return
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*/
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enum logReturns
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internal_config_read_logging(int file, struct log_config *lc,
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struct list *param_n,
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struct list *param_v,
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const char *applicationName);
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/*End of internal functions*/
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#endif
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/**
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* This function initialize the log facilities according to the configuration
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* file, that is described by the in parameter.
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* @param iniFile
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* @param applicationName, the name that is used in the log for the running application
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* @return LOG_STARTUP_OK on success
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*/
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enum logReturns
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log_start(const char *iniFile, const char *applicationName);
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/**
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* An alternative log_start where the caller gives the params directly.
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* @param iniParams
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* @return
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*/
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enum logReturns
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log_start_from_param(const struct log_config *iniParams);
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/**
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* Function that terminates all logging
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* @return
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*/
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enum logReturns
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log_end(void);
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/**
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* the log function that all files use to log an event.
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* @param lvl, the loglevel
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* @param msg, the logtext.
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* @param ...
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* @return
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*/
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enum logReturns
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log_message(const enum logLevels lvl, const char *msg, ...) printflike(2, 3);
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/**
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* This function returns the configured file name for the logfile
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* @param replybuf the buffer where the reply is stored
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* @param bufsize how big is the reply buffer.
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* @return
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*/
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char *getLogFile(char *replybuf, int bufsize);
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#endif
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