1/* 2 * Copyright (c) 2004-2012 Apple Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. Please obtain a copy of the License at 10 * http://www.opensource.apple.com/apsl/ and read it before using this 11 * file. 12 * 13 * The Original Code and all software distributed under the License are 14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 18 * Please see the License for the specific language governing rights and 19 * limitations under the License. 20 * 21 * @APPLE_LICENSE_HEADER_END@ 22 */ 23 24#ifndef __DAEMON_H__ 25#define __DAEMON_H__ 26 27#include <stdio.h> 28#include <sys/types.h> 29#include <sys/queue.h> 30#include <time.h> 31#include <asl.h> 32#include <asl_msg.h> 33#include <asl_core.h> 34#include <asl_private.h> 35#include <asl_store.h> 36#include "asl_memory.h" 37#include "asl_common.h" 38#include <notify.h> 39#include <notify_keys.h> 40#include <launch.h> 41#include <dispatch/dispatch.h> 42#include <libkern/OSAtomic.h> 43 44#include <TargetConditionals.h> 45 46#define ADDFD_FLAGS_LOCAL 0x00000001 47 48#define SELF_DB_NOTIFICATION "self.logger.message" 49 50#define ASL_OPT_IGNORE "ignore" 51#define ASL_OPT_STORE "store" 52#define ASL_OPT_CONTROL "control" 53#define ASL_OPT_DB_FILE "asl_db_file" 54#define ASL_OPT_DB_MEMORY "asl_db_memory" 55 56#if TARGET_IPHONE_SIMULATOR 57/* These paths are appropriately prefixed in the simulator */ 58extern const char *_path_pidfile; 59extern const char *_path_syslogd_log; 60 61#define _PATH_PIDFILE _path_pidfile 62#define _PATH_SYSLOGD_LOG _path_syslogd_log 63#else 64#define _PATH_PIDFILE "/var/run/syslog.pid" 65#define _PATH_SYSLOG_CONF "/etc/syslog.conf" 66#define _PATH_SYSLOG_IN "/var/run/syslog" 67#define _PATH_KLOG "/dev/klog" 68#define _PATH_SYSLOGD_LOG "/var/log/syslogd.log" 69#endif 70 71#define NOTIFY_PATH_SERVICE "com.apple.system.notify.service.path:0x87:" 72 73#define DB_TYPE_FILE 0x00000001 74#define DB_TYPE_MEMORY 0x00000002 75 76#define KERN_DISASTER_LEVEL 3 77 78#define SOURCE_UNKNOWN 0 79#define SOURCE_INTERNAL 1 80#define SOURCE_BSD_SOCKET 2 81#define SOURCE_UDP_SOCKET 3 82#define SOURCE_KERN 4 83#define SOURCE_ASL_MESSAGE 5 84#define SOURCE_LAUNCHD 6 85 86#define SOURCE_SESSION 100 /* does not generate messages */ 87 88#define STORE_FLAGS_FILE_CACHE_SWEEP_REQUESTED 0x00000001 89 90#define FS_TTL_SEC 31622400 91 92#define SEC_PER_DAY 86400 93 94/* trigger aslmanager no more often than 300 seconds */ 95#define ASLMANAGER_DELAY 300 96 97typedef struct 98{ 99 const char *name; 100 int enabled; 101 int (*init)(void); 102 int (*reset)(void); 103 int (*close)(void); 104} module_t; 105 106struct global_s 107{ 108 OSSpinLock lock; 109 int client_count; 110 int disaster_occurred; 111 mach_port_t listen_set; 112 mach_port_t server_port; 113 mach_port_t dead_session_port; 114 launch_data_t launch_dict; 115 int *lockdown_session_fds; 116 int lockdown_session_count; 117 int watchers_active; 118 int reset; 119 pid_t pid; 120 int32_t work_queue_count; 121 int64_t work_queue_size; 122 int32_t asl_queue_count; 123 int32_t bsd_queue_count; 124 pthread_mutex_t *db_lock; 125 pthread_cond_t work_queue_cond; 126 dispatch_queue_t work_queue; 127 dispatch_source_t mark_timer; 128 dispatch_source_t sig_hup_src; 129 asl_store_t *file_db; 130 asl_memory_t *memory_db; 131 asl_memory_t *disaster_db; 132 int module_count; 133 int bsd_out_enabled; 134 int launchd_enabled; 135 module_t **module; 136 asl_out_module_t *asl_out_module; 137 time_t aslmanager_last_trigger; 138 139 /* parameters below are configurable as command-line args or in /etc/asl.conf */ 140 int debug; 141 char *debug_file; 142 int dbtype; 143 uint32_t db_file_max; 144 uint32_t db_memory_max; 145 uint32_t db_memory_str_max; 146 uint32_t mps_limit; 147 uint32_t remote_delay_time; 148 uint64_t bsd_max_dup_time; 149 uint64_t mark_time; 150 time_t utmp_ttl; 151 int64_t max_work_queue_size; 152}; 153 154extern struct global_s global; 155 156void init_globals(void); 157 158void config_debug(int enable, const char *path); 159void config_data_store(int type, uint32_t file_max, uint32_t memory_max, uint32_t str_memory_max); 160 161void asl_mark(void); 162void asl_archive(void); 163 164void asl_client_count_increment(); 165void asl_client_count_decrement(); 166 167int asldebug(const char *, ...); 168int internal_log_message(const char *str); 169 170void send_to_direct_watchers(asl_msg_t *msg); 171 172#if !TARGET_IPHONE_SIMULATOR 173void launchd_callback(); 174#endif 175 176int asl_syslog_faciliy_name_to_num(const char *fac); 177const char *asl_syslog_faciliy_num_to_name(int num); 178asl_msg_t *asl_input_parse(const char *in, int len, char *rhost, uint32_t source); 179 180void process_message(asl_msg_t *msg, uint32_t source); 181void asl_out_message(asl_msg_t *msg); 182void bsd_out_message(asl_msg_t *msg); 183int control_set_param(const char *s, bool eval); 184int asl_action_control_set_param(const char *s); 185 186void trigger_aslmanager(); 187 188/* notify SPI */ 189uint32_t notify_register_plain(const char *name, int *out_token); 190 191#endif /* __DAEMON_H__ */ 192