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_mini_memory.h" 38#include "asl_common.h" 39#include <notify.h> 40#include <notify_keys.h> 41#include <launch.h> 42#include <dispatch/dispatch.h> 43#include <libkern/OSAtomic.h> 44 45#include <TargetConditionals.h> 46 47#define ADDFD_FLAGS_LOCAL 0x00000001 48 49#define SELF_DB_NOTIFICATION "self.logger.message" 50 51#define ASL_OPT_IGNORE "ignore" 52#define ASL_OPT_STORE "store" 53#define ASL_OPT_CONTROL "control" 54#define ASL_OPT_DB_FILE "asl_db_file" 55#define ASL_OPT_DB_MINI "asl_db_mini_memory" 56#define ASL_OPT_DB_MEMORY "asl_db_memory" 57 58#if TARGET_IPHONE_SIMULATOR 59/* These paths are appropriately prefixed in the simulator */ 60extern const char *_path_pidfile; 61extern const char *_path_syslogd_log; 62 63#define _PATH_PIDFILE _path_pidfile 64#define _PATH_SYSLOGD_LOG _path_syslogd_log 65#else 66#define _PATH_PIDFILE "/var/run/syslog.pid" 67#define _PATH_SYSLOG_CONF "/etc/syslog.conf" 68#define _PATH_SYSLOG_IN "/var/run/syslog" 69#define _PATH_KLOG "/dev/klog" 70#define _PATH_SYSLOGD_LOG "/var/log/syslogd.log" 71#endif 72 73#define DB_TYPE_FILE 0x00000001 74#define DB_TYPE_MEMORY 0x00000002 75#define DB_TYPE_MINI 0x00000004 76 77#define KERN_DISASTER_LEVEL 3 78 79#define SOURCE_UNKNOWN 0 80#define SOURCE_INTERNAL 1 81#define SOURCE_ASL_SOCKET 2 82#define SOURCE_BSD_SOCKET 3 83#define SOURCE_UDP_SOCKET 4 84#define SOURCE_KERN 5 85#define SOURCE_ASL_MESSAGE 6 86#define SOURCE_LAUNCHD 7 87 88#define SOURCE_SESSION 100 /* does not generate messages */ 89 90#define STORE_FLAGS_FILE_CACHE_SWEEP_REQUESTED 0x00000001 91 92#define FS_TTL_SEC 31622400 93 94#define SEC_PER_DAY 86400 95 96typedef struct 97{ 98 const char *name; 99 int enabled; 100 int (*init)(void); 101 int (*reset)(void); 102 int (*close)(void); 103} module_t; 104 105struct global_s 106{ 107 OSSpinLock lock; 108 int client_count; 109 int disaster_occurred; 110 mach_port_t listen_set; 111 mach_port_t server_port; 112 mach_port_t dead_session_port; 113 launch_data_t launch_dict; 114 int *lockdown_session_fds; 115 int lockdown_session_count; 116 int watchers_active; 117 int reset; 118 pid_t pid; 119 int32_t work_queue_count; 120 int32_t asl_queue_count; 121 int32_t bsd_queue_count; 122 pthread_mutex_t *db_lock; 123 pthread_cond_t work_queue_cond; 124 dispatch_queue_t work_queue; 125 dispatch_source_t mark_timer; 126 dispatch_source_t sig_hup_src; 127 asl_store_t *file_db; 128 asl_memory_t *memory_db; 129 asl_mini_memory_t *mini_db; 130 asl_mini_memory_t *disaster_db; 131 int module_count; 132 int bsd_out_enabled; 133 int launchd_enabled; 134 module_t **module; 135 asl_out_module_t *asl_out_module; 136 137 /* parameters below are configurable as command-line args or in /etc/asl.conf */ 138 int debug; 139 char *debug_file; 140 int dbtype; 141 uint32_t db_file_max; 142 uint32_t db_memory_max; 143 uint32_t db_mini_max; 144 uint32_t mps_limit; 145 uint32_t remote_delay_time; 146 uint64_t bsd_max_dup_time; 147 uint64_t mark_time; 148 time_t utmp_ttl; 149}; 150 151extern struct global_s global; 152 153void init_globals(void); 154 155void config_debug(int enable, const char *path); 156void config_data_store(int type, uint32_t file_max, uint32_t memory_max, uint32_t mini_max); 157 158void asl_mark(void); 159void asl_archive(void); 160 161void asl_client_count_increment(); 162void asl_client_count_decrement(); 163 164int asldebug(const char *, ...); 165int internal_log_message(const char *str); 166 167asl_msg_t *asl_msg_from_string(const char *buf); 168int asl_msg_cmp(asl_msg_t *a, asl_msg_t *b); 169time_t asl_parse_time(const char *str); 170 171void send_to_direct_watchers(asl_msg_t *msg); 172 173#if !TARGET_IPHONE_SIMULATOR 174void launchd_callback(); 175#endif 176 177int asl_syslog_faciliy_name_to_num(const char *fac); 178const char *asl_syslog_faciliy_num_to_name(int num); 179aslmsg asl_input_parse(const char *in, int len, char *rhost, uint32_t source); 180 181void process_message(aslmsg m, uint32_t source); 182void asl_out_message(aslmsg msg); 183void bsd_out_message(aslmsg msg); 184int control_set_param(const char *s, bool eval); 185int asl_action_control_set_param(const char *s); 186 187/* notify SPI */ 188uint32_t notify_register_plain(const char *name, int *out_token); 189 190#endif /* __DAEMON_H__ */ 191