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_ZBXSERVER_H 21 #define ZABBIX_ZBXSERVER_H 22 23 #include "common.h" 24 #include "db.h" 25 #include "dbcache.h" 26 #include "zbxjson.h" 27 #include "zbxvariant.h" 28 #include "zbxeval.h" 29 30 #define MACRO_TYPE_MESSAGE_NORMAL 0x00000001 31 #define MACRO_TYPE_MESSAGE_RECOVERY 0x00000002 32 #define MACRO_TYPE_TRIGGER_URL 0x00000004 33 #define MACRO_TYPE_TRIGGER_EXPRESSION 0x00000008 34 #define MACRO_TYPE_TRIGGER_DESCRIPTION 0x00000010 /* name */ 35 #define MACRO_TYPE_TRIGGER_COMMENTS 0x00000020 /* description */ 36 #define MACRO_TYPE_ITEM_KEY 0x00000040 37 #define MACRO_TYPE_INTERFACE_ADDR 0x00000100 38 #define MACRO_TYPE_COMMON 0x00000400 39 #define MACRO_TYPE_PARAMS_FIELD 0x00000800 40 #define MACRO_TYPE_SCRIPT 0x00001000 41 #define MACRO_TYPE_SNMP_OID 0x00002000 42 #define MACRO_TYPE_HTTPTEST_FIELD 0x00004000 43 #define MACRO_TYPE_LLD_FILTER 0x00008000 44 #define MACRO_TYPE_ALERT 0x00010000 45 #define MACRO_TYPE_TRIGGER_TAG 0x00020000 46 #define MACRO_TYPE_JMX_ENDPOINT 0x00040000 47 #define MACRO_TYPE_MESSAGE_ACK 0x00080000 48 #define MACRO_TYPE_HTTP_RAW 0x00100000 49 #define MACRO_TYPE_HTTP_JSON 0x00200000 50 #define MACRO_TYPE_HTTP_XML 0x00400000 51 #define MACRO_TYPE_ALLOWED_HOSTS 0x00800000 52 #define MACRO_TYPE_ITEM_TAG 0x01000000 53 #define MACRO_TYPE_EVENT_NAME 0x02000000 /* event name in trigger configuration */ 54 #define MACRO_TYPE_SCRIPT_PARAMS_FIELD 0x04000000 55 #define MACRO_TYPE_SCRIPT_NORMAL 0x08000000 56 #define MACRO_TYPE_SCRIPT_RECOVERY 0x10000000 57 #define MACRO_TYPE_REPORT 0x20000000 58 59 #define MACRO_EXPAND_NO 0 60 #define MACRO_EXPAND_YES 1 61 62 #define STR_CONTAINS_MACROS(str) (NULL != strchr(str, '{')) 63 64 int evaluate_function(char **value, DC_ITEM *item, const char *function, const char *parameter, 65 const zbx_timespec_t *ts, char **error); 66 int evaluate_function2(zbx_variant_t *value, DC_ITEM *item, const char *function, const char *parameter, 67 const zbx_timespec_t *ts, char **error); 68 69 int zbx_is_trigger_function(const char *name, size_t len); 70 71 int substitute_simple_macros(const zbx_uint64_t *actionid, const DB_EVENT *event, const DB_EVENT *r_event, 72 const zbx_uint64_t *userid, const zbx_uint64_t *hostid, const DC_HOST *dc_host, const DC_ITEM *dc_item, 73 const DB_ALERT *alert, const DB_ACKNOWLEDGE *ack, const char *tz, char **data, int macro_type, 74 char *error, int maxerrlen); 75 76 int substitute_simple_macros_unmasked(const zbx_uint64_t *actionid, const DB_EVENT *event, const DB_EVENT *r_event, 77 const zbx_uint64_t *userid, const zbx_uint64_t *hostid, const DC_HOST *dc_host, const DC_ITEM *dc_item, 78 const DB_ALERT *alert, const DB_ACKNOWLEDGE *ack, const char *tz, char **data, int macro_type, 79 char *error, int maxerrlen); 80 81 void evaluate_expressions(zbx_vector_ptr_t *triggers, const zbx_vector_uint64_t *history_itemids, 82 const DC_ITEM *history_items, const int *history_errcodes); 83 void prepare_triggers(DC_TRIGGER **triggers, int triggers_num); 84 85 void zbx_format_value(char *value, size_t max_len, zbx_uint64_t valuemapid, 86 const char *units, unsigned char value_type); 87 88 void zbx_determine_items_in_expressions(zbx_vector_ptr_t *trigger_order, const zbx_uint64_t *itemids, int item_num); 89 90 #define ZBX_EXPRESSION_NORMAL 0 91 #define ZBX_EXPRESSION_AGGREGATE 1 92 93 typedef struct 94 { 95 zbx_eval_context_t *ctx; 96 zbx_vector_ptr_t queries; 97 int mode; 98 int one_num; 99 int many_num; 100 zbx_uint64_t hostid; 101 102 /* cache to resolve one item queries */ 103 zbx_host_key_t *hostkeys; 104 DC_ITEM *dcitems_hk; 105 int *errcodes_hk; 106 107 /* cache to resolve many item queries */ 108 zbx_vector_ptr_t groups; 109 zbx_vector_ptr_t itemtags; 110 zbx_vector_ptr_t dcitem_refs; 111 DC_ITEM *dcitems; 112 int *errcodes; 113 int dcitems_num; 114 } 115 zbx_expression_eval_t; 116 117 void zbx_expression_eval_init(zbx_expression_eval_t *eval, int mode, zbx_eval_context_t *ctx); 118 void zbx_expression_eval_clear(zbx_expression_eval_t *eval); 119 void zbx_expression_eval_resolve_item_hosts(zbx_expression_eval_t *eval, const DC_ITEM *item); 120 void zbx_expression_eval_resolve_trigger_hosts(zbx_expression_eval_t *eval, const DB_TRIGGER *trigger); 121 int zbx_expression_eval_execute(zbx_expression_eval_t *eval, const zbx_timespec_t *ts, zbx_variant_t *value, 122 char **error); 123 124 /* lld macro context */ 125 #define ZBX_MACRO_ANY (ZBX_TOKEN_LLD_MACRO | ZBX_TOKEN_LLD_FUNC_MACRO | ZBX_TOKEN_USER_MACRO) 126 #define ZBX_MACRO_JSON (ZBX_MACRO_ANY | ZBX_TOKEN_JSON) 127 #define ZBX_MACRO_SIMPLE (ZBX_MACRO_ANY | ZBX_TOKEN_SIMPLE_MACRO) 128 #define ZBX_MACRO_FUNC (ZBX_MACRO_ANY | ZBX_TOKEN_FUNC_MACRO) 129 130 int substitute_lld_macros(char **data, const struct zbx_json_parse *jp_row, const zbx_vector_ptr_t *lld_macro_paths, 131 int flags, char *error, size_t max_error_len); 132 int substitute_key_macros(char **data, zbx_uint64_t *hostid, DC_ITEM *dc_item, const struct zbx_json_parse *jp_row, 133 const zbx_vector_ptr_t *lld_macro_paths, int macro_type, char *error, size_t maxerrlen); 134 int substitute_key_macros_unmasked(char **data, zbx_uint64_t *hostid, DC_ITEM *dc_item, 135 const struct zbx_json_parse *jp_row, const zbx_vector_ptr_t *lld_macro_paths, int macro_type, 136 char *error, size_t maxerrlen); 137 int substitute_function_lld_param(const char *e, size_t len, unsigned char key_in_param, 138 char **exp, size_t *exp_alloc, size_t *exp_offset, const struct zbx_json_parse *jp_row, 139 const zbx_vector_ptr_t *lld_macro_paths, char *error, size_t max_error_len); 140 int substitute_macros_xml(char **data, const DC_ITEM *item, const struct zbx_json_parse *jp_row, 141 const zbx_vector_ptr_t *lld_macro_paths, char *error, int maxerrlen); 142 int substitute_macros_xml_unmasked(char **data, const DC_ITEM *item, const struct zbx_json_parse *jp_row, 143 const zbx_vector_ptr_t *lld_macro_paths, char *error, int maxerrlen); 144 void zbx_substitute_item_name_macros(DC_ITEM *dc_item, const char *name, char **replace_to); 145 int substitute_macros_in_json_pairs(char **data, const struct zbx_json_parse *jp_row, 146 const zbx_vector_ptr_t *lld_macro_paths, char *error, int maxerrlen); 147 int xml_xpath_check(const char *xpath, char *error, size_t errlen); 148 149 int zbx_substitute_expression_lld_macros(char **data, zbx_uint64_t rules, const struct zbx_json_parse *jp_row, 150 const zbx_vector_ptr_t *lld_macro_paths, char **error); 151 152 #endif 153