xref: /trueos/lib/libasl/asl_common.h (revision e0d5dc4e99cb0cffad102c7a22a16d828ef86ae5)
1 /*
2  * Copyright (c) 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 __ASL_COMMON_H__
25 #define __ASL_COMMON_H__
26 
27 #include <stdio.h>
28 #include <xpc/xpc.h>
29 
30 #define ASL_MODULE_NAME "com.apple.asl"
31 #define _PATH_CRASHREPORTER "/Library/Logs/CrashReporter"
32 #define _PATH_CRASHREPORTER_MOBILE "/var/mobile/Library/Logs/CrashReporter"
33 
34 #define ASL_SERVICE_NAME "com.apple.system.logger"
35 
36 #define CRASH_MOVER_WILL_START_NOTIFICATION  "CrashMoverWillStart"
37 
38 #define DEFAULT_TTL 7 /* days */
39 #define SECONDS_PER_DAY 86400
40 
41 #define ACTION_NONE       0
42 #define ACTION_SET_PARAM  1
43 #define ACTION_OUT_DEST   2
44 #define ACTION_IGNORE     3
45 #define ACTION_SKIP       4
46 #define ACTION_CLAIM      5
47 #define ACTION_NOTIFY     6
48 #define ACTION_BROADCAST  7
49 #define ACTION_ACCESS     8
50 #define ACTION_SET_KEY    9
51 #define ACTION_UNSET_KEY 10
52 #define ACTION_ASL_STORE 11 /* Save in main ASL Database */
53 #define ACTION_ASL_FILE  12 /* Save in an ASL format data file */
54 #define ACTION_ASL_DIR   13 /* Save in an ASL directory */
55 #define ACTION_FILE      14 /* Save in a text file */
56 #define ACTION_FORWARD   15
57 #define ACTION_CONTROL   16
58 #define ACTION_SET_FILE  17 /* = foo [File /a/b/c] */
59 #define ACTION_SET_PLIST 18 /* = foo [Plist /a/b/c] ... */
60 #define ACTION_SET_PROF  19 /* = foo [Profile abc] ... */
61 
62 #define STYLE_SEC_PREFIX_CHAR 'T'
63 
64 #define MODULE_FLAG_HAS_LOGGED   0x80000000
65 #define MODULE_FLAG_CLEAR_LOGGED 0x7fffffff
66 #define MODULE_FLAG_ENABLED      0x00000001
67 #define MODULE_FLAG_LOCAL        0x00000002
68 #define MODULE_FLAG_ROTATE       0x00000004
69 #define MODULE_FLAG_COALESCE     0x00000008
70 #define MODULE_FLAG_COMPRESS     0x00000010
71 #define MODULE_FLAG_NONSTD_DIR   0x00000020
72 #define MODULE_FLAG_EXTERNAL     0x00000040
73 #define MODULE_FLAG_TRUNCATE     0x00000080
74 #define MODULE_FLAG_STYLE_SEC    0x00000100 /* foo.T1332799722 (note STYLE_SEC_PREFIX_CHAR) */
75 #define MODULE_FLAG_STYLE_SEQ    0x00000200 /* foo.0 */
76 #define MODULE_FLAG_STYLE_UTC    0x00000400 /* foo.2012-04-06T13:45:00Z */
77 #define MODULE_FLAG_STYLE_UTC_B  0x00000800 /* ("basic utc") foo.20120406T134500Z */
78 #define MODULE_FLAG_STYLE_LCL    0x00001000 /* foo.2012-04-06T13:45:00-7 */
79 #define MODULE_FLAG_STYLE_LCL_B  0x00002000 /* ("basic local") foo.20120406T134500-7 */
80 #define MODULE_FLAG_BASESTAMP    0x00004000 /* base file has timestamp */
81 #define MODULE_FLAG_CRASHLOG     0x00008000 /* checkpoint on CrashMoverWillStart notification */
82 #define MODULE_FLAG_SOFT_WRITE   0x00010000 /* ignore write failures */
83 #define MODULE_FLAG_TYPE_ASL     0x00020000 /* asl format file */
84 #define MODULE_FLAG_TYPE_ASL_DIR 0x00040000 /* asl format directory */
85 #define MODULE_FLAG_STD_BSD_MSG  0x00080000 /* print format is std, bsd, or msg */
86 
87 #define MODULE_FLAG_STYLE_BITS   (MODULE_FLAG_STYLE_SEC | MODULE_FLAG_STYLE_SEQ | MODULE_FLAG_STYLE_UTC | MODULE_FLAG_STYLE_UTC_B | MODULE_FLAG_STYLE_LCL | MODULE_FLAG_STYLE_LCL_B)
88 #define CHECKPOINT_TEST   0x00000000
89 #define CHECKPOINT_FORCE  0x00000001
90 #define CHECKPOINT_CRASH  0x00000002
91 
92 #define LEVEL_ALL 8
93 
94 typedef struct
95 {
96 	char *path;
97 	char *fname;
98 	char *fmt;
99 	const char *tfmt;
100 	char *rotate_dir;
101 	uint32_t pvt_flags;
102 	uint32_t flags;
103 	uint32_t fails;
104 	uint32_t ttl[9];
105 	mode_t mode;
106 #if !TARGET_IPHONE_SIMULATOR
107 	uid_t *uid;
108 	uint32_t nuid;
109 	gid_t *gid;
110 	uint32_t ngid;
111 #endif
112 	size_t file_max;
113 	size_t all_max;
114 	uint32_t refcount;
115 	time_t stamp;
116 	size_t size;
117 	void *private;
118 } asl_out_dst_data_t;
119 
120 typedef struct asl_out_rule_s
121 {
122 	asl_msg_t *query;
123 	uint32_t action;
124 	char *options;
125 	asl_out_dst_data_t *dst;
126 	void *private;
127 	struct asl_out_rule_s *next;
128 } asl_out_rule_t;
129 
130 typedef struct asl_out_module_s
131 {
132 	char *name;
133 	uint32_t flags;
134 	asl_out_rule_t *ruleset;
135 	struct asl_out_module_s *next;
136 } asl_out_module_t;
137 
138 typedef struct asl_out_file_list_s
139 {
140 	char *name;
141 	time_t ftime;
142 	uint32_t seq;
143 	size_t size;
144 	struct asl_out_file_list_s *next;
145 	struct asl_out_file_list_s *prev;
146 } asl_out_file_list_t;
147 
148 char **explode(const char *s, const char *delim);
149 void free_string_list(char **l);
150 char *get_line_from_file(FILE *f);
151 char *next_word_from_string(char **s);
152 size_t asl_str_to_size(char *s);
153 asl_msg_t *xpc_object_to_asl_msg(xpc_object_t xobj);
154 
155 int asl_check_option(asl_msg_t *msg, const char *opt);
156 
157 /* ASL OUT MODULES */
158 asl_out_module_t *asl_out_module_new(const char *name);
159 void asl_out_module_free(asl_out_module_t *m);
160 asl_out_module_t *asl_out_module_init(void);
161 asl_out_module_t *asl_out_module_init_from_file(const char *name, FILE *f);
162 asl_out_rule_t *asl_out_module_parse_line(asl_out_module_t *m, char *s);
163 
164 void asl_out_module_print(FILE *f, asl_out_module_t *m);
165 char *asl_out_module_rule_to_string(asl_out_rule_t *r);
166 
167 int asl_out_mkpath(asl_out_module_t *mlist, asl_out_rule_t *r);
168 int asl_out_dst_checkpoint(asl_out_dst_data_t *dst, uint32_t force);
169 int asl_out_dst_file_create_open(asl_out_dst_data_t *dst, char **pathp);
170 int asl_out_dst_set_access(int fd, asl_out_dst_data_t *dst);
171 void asl_make_timestamp(time_t stamp, uint32_t flags, char *buf, size_t len);
172 void asl_make_dst_filename(asl_out_dst_data_t *dst, char *buf, size_t len);
173 
174 asl_out_dst_data_t *asl_out_dst_data_retain(asl_out_dst_data_t *dst);
175 void asl_out_dst_data_release(asl_out_dst_data_t *dst);
176 
177 /* rotated log files */
178 asl_out_file_list_t *asl_list_log_files(const char *dir, const char *base, bool src, uint32_t flags);
179 asl_out_file_list_t * asl_list_src_files(asl_out_dst_data_t *dst);
180 asl_out_file_list_t * asl_list_dst_files(asl_out_dst_data_t *dst);
181 void asl_out_file_list_free(asl_out_file_list_t *l);
182 
183 asl_msg_t *configuration_profile_to_asl_msg(const char *ident);
184 
185 int asl_secure_chown_chmod_dir(const char *path, uid_t uid, gid_t gid, mode_t mode);
186 
187 #endif /* __ASL_COMMON_H__ */
188