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/* Copyright (C) 2007-2021 Open Information Security Foundation
*
* You can copy, redistribute or modify this Program under the terms of
* the GNU General Public License version 2 as published by the Free
* Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
/**
* \file
*
* \author Mike Pomraning <mpomraning@qualys.com>
*/
#ifndef __UTIL_LOGOPENFILE_H__
#define __UTIL_LOGOPENFILE_H__
#include "threads.h"
#include "conf.h" /* ConfNode */
#include "util-buffer.h"
#include "util-hash.h"
#ifdef HAVE_LIBHIREDIS
#include "util-log-redis.h"
#endif /* HAVE_LIBHIREDIS */
#include "suricata-plugin.h"
enum LogFileType {
LOGFILE_TYPE_FILE,
LOGFILE_TYPE_UNIX_DGRAM,
LOGFILE_TYPE_UNIX_STREAM,
LOGFILE_TYPE_REDIS,
LOGFILE_TYPE_PLUGIN,
LOGFILE_TYPE_NOTSET
};
typedef struct SyslogSetup_ {
int alert_syslog_level;
} SyslogSetup;
typedef struct ThreadLogFileHashEntry {
uint64_t thread_id;
int slot_number; /* slot identifier -- for plugins */
bool isopen;
struct LogFileCtx_ *ctx;
} ThreadLogFileHashEntry;
struct LogFileCtx_;
typedef struct LogThreadedFileCtx_ {
SCMutex mutex;
HashTable *ht;
char *append;
} LogThreadedFileCtx;
typedef struct LogFilePluginCtx_ {
SCEveFileType *plugin;
void *init_data;
void *thread_data;
} LogFilePluginCtx;
/** Global structure for Output Context */
typedef struct LogFileCtx_ {
union {
FILE *fp;
#ifdef HAVE_LIBHIREDIS
void *redis;
#endif
};
LogThreadedFileCtx *threads;
union {
#ifdef HAVE_LIBHIREDIS
RedisSetup redis_setup;
#endif
};
int (*Write)(const char *buffer, int buffer_len, struct LogFileCtx_ *fp);
void (*Close)(struct LogFileCtx_ *fp);
LogFilePluginCtx plugin;
/** It will be locked if the log/alert
* record cannot be written to the file in one call */
SCMutex fp_mutex;
/** When threaded, track of the parent and thread id */
bool threaded;
struct LogFileCtx_ *parent;
ThreadLogFileHashEntry *entry;
/** the type of file */
enum LogFileType type;
/** The name of the file */
char *filename;
/** File permissions */
uint32_t filemode;
/** Suricata sensor name */
char *sensor_name;
/** Handle auto-connecting / reconnecting sockets */
int is_sock;
int sock_type;
uint64_t reconn_timer;
/** The next time to rotate log file, if rotate interval is
specified. */
time_t rotate_time;
/** The interval to rotate the log file */
uint64_t rotate_interval;
/**< Used by some alert loggers like the unified ones that append
* the date onto the end of files. */
char *prefix;
size_t prefix_len;
/** Generic size_limit and size_current
* They must be common to the threads accessing the same file */
uint64_t size_limit; /**< file size limit */
uint64_t size_current; /**< file current size */
/* flag to avoid multiple threads printing the same stats */
uint8_t flags;
/* flags to set when sending over a socket */
uint8_t send_flags;
/* Flag if file is a regular file or not. Only regular files
* allow for rotation. */
uint8_t is_regular;
/* JSON flags */
size_t json_flags; /* passed to json_dump_callback() */
/* Flag set when file rotation notification is received. */
int rotation_flag;
/* if set to true EVE will add a pcap file record */
bool is_pcap_offline;
/* Socket types may need to drop events to keep from blocking
* Suricata. */
uint64_t dropped;
uint64_t output_errors;
} LogFileCtx;
/* Min time (msecs) before trying to reconnect a Unix domain socket */
#define LOGFILE_RECONN_MIN_TIME 500
/* flags for LogFileCtx */
#define LOGFILE_ROTATE_INTERVAL 0x04
LogFileCtx *LogFileNewCtx(void);
int LogFileFreeCtx(LogFileCtx *);
int LogFileWrite(LogFileCtx *file_ctx, MemBuffer *buffer);
LogFileCtx *LogFileEnsureExists(LogFileCtx *lf_ctx);
int SCConfLogOpenGeneric(ConfNode *conf, LogFileCtx *, const char *, int);
int SCConfLogReopen(LogFileCtx *);
bool SCLogOpenThreadedFile(const char *log_path, const char *append, LogFileCtx *parent_ctx);
#endif /* __UTIL_LOGOPENFILE_H__ */
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