daemon.h   [plain text]


/*
 * Copyright (c) 2004-2008 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef __DAEMON_H__
#define __DAEMON_H__

#include <stdio.h>
#include <sys/types.h>
#include <sys/queue.h>
#include <time.h>
#include <asl.h>
#include <asl_private.h>
#include <asl_store.h>
#include <asl_memory.h>
#include <asl_mini_memory.h>
#include <notify.h>
#include <launch.h>

#define ADDFD_FLAGS_LOCAL 0x00000001

#define ASL_DB_NOTIFICATION "com.apple.system.logger.message"
#define SELF_DB_NOTIFICATION "self.logger.message"

#define ASL_KEY_READ_UID "ReadUID"
#define ASL_KEY_READ_GID "ReadGID"
#define ASL_KEY_EXPIRE_TIME "ASLExpireTime"
#define ASL_KEY_IGNORE "ASLIgnore"
#define ASL_KEY_TIME_NSEC "TimeNanoSec"
#define ASL_KEY_REF_PID "RefPID"
#define ASL_KEY_REF_PROC "RefProc"
#define ASL_KEY_SESSION "Session"

#define _PATH_PIDFILE		"/var/run/syslog.pid"
#define _PATH_ASL_IN		"/var/run/asl_input"
#define _PATH_SYSLOG_CONF   "/etc/syslog.conf"
#define _PATH_SYSLOG_IN		"/var/run/syslog"
#define _PATH_KLOG			"/dev/klog"
#define _PATH_MODULE_LIB	"/usr/lib/asl"

#define DB_TYPE_FILE	0x00000001
#define DB_TYPE_MEMORY	0x00000002
#define DB_TYPE_MINI	0x00000004

#define KERN_DISASTER_LEVEL 3

struct global_s
{
	int asl_log_filter;
	int restart;
	int debug;
	int disaster_occurred;
	mach_port_t server_port;
	launch_data_t launch_dict;
	const char *debug_file;
	int dbtype;
	int did_store_sweep;
	time_t start_time;
	uint32_t db_file_max;
	uint32_t db_memory_max;
	uint32_t db_mini_max;
	int kfd;
	uint64_t bsd_flush_time;
	uint64_t asl_store_ping_time;
	uint64_t bsd_max_dup_time;
	time_t utmp_ttl;
	time_t fs_ttl;
	asl_store_t *file_db;
	asl_memory_t *memory_db;
	asl_mini_memory_t *mini_db;
	asl_mini_memory_t *disaster_db;
};

extern struct global_s global;

struct module_list
{
	char *name;
	void *module;
	int (*init)(void);
	int (*reset)(void);
	int (*close)(void);
	TAILQ_ENTRY(module_list) entries;
};

int aslevent_init(void);
int aslevent_fdsets(fd_set *, fd_set *, fd_set *);
void aslevent_handleevent(fd_set *, fd_set *, fd_set *);
void asl_mark(void);
void asl_archive(void);

char *get_line_from_file(FILE *f);

int asldebug(const char *, ...);
int asl_log_string(const char *str);

char *asl_msg_to_string(asl_msg_t *msg, uint32_t *len);
asl_msg_t *asl_msg_from_string(const char *buf);
int asl_msg_cmp(asl_msg_t *a, asl_msg_t *b);
time_t asl_parse_time(const char *str);

typedef asl_msg_t *(*aslreadfn)(int);
typedef char *(*aslwritefn)(const char *, int);
typedef char *(*aslexceptfn)(int);
typedef int (*aslsendmsgfn)(asl_msg_t *msg, const char *outid);

int aslevent_addfd(int fd, uint32_t flags, aslreadfn, aslwritefn, aslexceptfn);
int aslevent_removefd(int fd);
int aslevent_addmatch(asl_msg_t *query, char *outid);

int aslevent_addoutput(aslsendmsgfn, const char *outid);

int asl_syslog_faciliy_name_to_num(const char *fac);
const char *asl_syslog_faciliy_num_to_name(int num);
asl_msg_t *asl_input_parse(const char *in, int len, char *rhost, int flag);

void db_ping_store(time_t now);

/* message refcount utilities */
uint32_t asl_msg_type(asl_msg_t *m);
asl_msg_t *asl_msg_retain(asl_msg_t *m);
void asl_msg_release(asl_msg_t *m);

/* notify SPI */
uint32_t notify_register_plain(const char *name, int *out_token);

#endif /* __DAEMON_H__ */