1 /*
2 ** Zabbix
3 ** Copyright (C) 2001-2021 Zabbix SIA
4 **
5 ** This program is free software; you can redistribute it and/or modify
6 ** it under the terms of the GNU General Public License as published by
7 ** the Free Software Foundation; either version 2 of the License, or
8 ** (at your option) any later version.
9 **
10 ** This program is distributed in the hope that it will be useful,
11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ** GNU General Public License for more details.
14 **
15 ** You should have received a copy of the GNU General Public License
16 ** along with this program; if not, write to the Free Software
17 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
18 **/
19 
20 #ifndef ZABBIX_ACTIVE_H
21 #define ZABBIX_ACTIVE_H
22 
23 #include "threads.h"
24 
25 extern char	*CONFIG_SOURCE_IP;
26 extern char	*CONFIG_HOSTNAME;
27 extern char	*CONFIG_HOST_METADATA;
28 extern char	*CONFIG_HOST_METADATA_ITEM;
29 extern int	CONFIG_REFRESH_ACTIVE_CHECKS;
30 extern int	CONFIG_BUFFER_SEND;
31 extern int	CONFIG_BUFFER_SIZE;
32 extern int	CONFIG_MAX_LINES_PER_SECOND;
33 extern char	*CONFIG_LISTEN_IP;
34 extern int	CONFIG_LISTEN_PORT;
35 
36 /* define minimal and maximal values of lines to send by agent */
37 /* per second for checks `log' and `eventlog', used to parse key parameters */
38 #define	MIN_VALUE_LINES	1
39 #define	MAX_VALUE_LINES	1000
40 
41 #define HOST_METADATA_LEN	255	/* UTF-8 characters, not bytes */
42 
43 /* Windows event types for `eventlog' check */
44 #ifdef _WINDOWS
45 #	ifndef INFORMATION_TYPE
46 #		define INFORMATION_TYPE	"Information"
47 #	endif
48 #	ifndef WARNING_TYPE
49 #		define WARNING_TYPE	"Warning"
50 #	endif
51 #	ifndef ERROR_TYPE
52 #		define ERROR_TYPE	"Error"
53 #	endif
54 #	ifndef AUDIT_FAILURE
55 #		define AUDIT_FAILURE	"Failure Audit"
56 #	endif
57 #	ifndef AUDIT_SUCCESS
58 #		define AUDIT_SUCCESS	"Success Audit"
59 #	endif
60 #	ifndef CRITICAL_TYPE
61 #		define CRITICAL_TYPE	"Critical"
62 #	endif
63 #	ifndef VERBOSE_TYPE
64 #		define VERBOSE_TYPE	"Verbose"
65 #	endif
66 #endif	/* _WINDOWS */
67 
68 /* NB! Next list must fit in unsigned char (see ZBX_ACTIVE_METRIC "flags" field below). */
69 #define ZBX_METRIC_FLAG_PERSISTENT	0x01	/* do not overwrite old values when adding to the buffer */
70 #define ZBX_METRIC_FLAG_NEW		0x02	/* new metric, just added */
71 #define ZBX_METRIC_FLAG_LOG_LOG		0x04	/* log[ */
72 #define ZBX_METRIC_FLAG_LOG_LOGRT	0x08	/* logrt[ */
73 #define ZBX_METRIC_FLAG_LOG_EVENTLOG	0x10	/* eventlog[ */
74 #define ZBX_METRIC_FLAG_LOG			/* item for log file monitoring, one of the above */	\
75 		(ZBX_METRIC_FLAG_LOG_LOG | ZBX_METRIC_FLAG_LOG_LOGRT | ZBX_METRIC_FLAG_LOG_EVENTLOG)
76 
77 typedef struct
78 {
79 	char			*key;
80 	char			*key_orig;
81 	zbx_uint64_t		lastlogsize;
82 	int			refresh;
83 	int			nextcheck;
84 	int			mtime;
85 	unsigned char		skip_old_data;	/* for processing [event]log metrics */
86 	unsigned char		flags;
87 	unsigned char		state;
88 	unsigned char		refresh_unsupported;	/* re-check notsupported item */
89 	int			big_rec;	/* for logfile reading: 0 - normal record, 1 - long unfinished record */
90 	int			use_ino;	/* 0 - do not use inodes (on FAT, FAT32) */
91 						/* 1 - use inodes (up to 64-bit) (various UNIX file systems, NTFS) */
92 						/* 2 - use 128-bit FileID (currently only on ReFS) to identify files */
93 						/* on a file system */
94 	int			error_count;	/* number of file reading errors in consecutive checks */
95 	int			logfiles_num;
96 	struct st_logfile	*logfiles;	/* for handling of logfile rotation for logrt[] items */
97 }
98 ZBX_ACTIVE_METRIC;
99 
100 typedef struct
101 {
102 	char		*host;
103 	unsigned short	port;
104 }
105 ZBX_THREAD_ACTIVECHK_ARGS;
106 
107 typedef struct
108 {
109 	char		*host;
110 	char		*key;
111 	char		*value;
112 	unsigned char	state;
113 	zbx_uint64_t	lastlogsize;
114 	int		timestamp;
115 	char		*source;
116 	int		severity;
117 	zbx_timespec_t	ts;
118 	int		logeventid;
119 	int		mtime;
120 	unsigned char	flags;
121 }
122 ZBX_ACTIVE_BUFFER_ELEMENT;
123 
124 typedef struct
125 {
126 	ZBX_ACTIVE_BUFFER_ELEMENT	*data;
127 	int				count;
128 	int				pcount;
129 	int				lastsent;
130 	int				first_error;
131 }
132 ZBX_ACTIVE_BUFFER;
133 
134 ZBX_THREAD_ENTRY(active_checks_thread, args);
135 
136 #endif	/* ZABBIX_ACTIVE_H */
137