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-rw-r--r--plugins/check_snmp.d/check_snmp_helpers.c103
-rw-r--r--plugins/check_snmp.d/check_snmp_helpers.h8
-rw-r--r--plugins/check_snmp.d/config.h52
3 files changed, 116 insertions, 47 deletions
diff --git a/plugins/check_snmp.d/check_snmp_helpers.c b/plugins/check_snmp.d/check_snmp_helpers.c
new file mode 100644
index 00000000..9db1d9f4
--- /dev/null
+++ b/plugins/check_snmp.d/check_snmp_helpers.c
@@ -0,0 +1,103 @@
1#include "./check_snmp_helpers.h"
2#include <string.h>
3#include "../../lib/utils_base.h"
4
5check_snmp_test_unit check_snmp_test_unit_init() {
6 check_snmp_test_unit tmp = {
7 .threshold = mp_thresholds_init(),
8 };
9 return tmp;
10}
11
12
13int check_snmp_set_thresholds(char *threshold_string, check_snmp_test_unit tu[],
14 size_t max_test_units, bool is_critical) {
15 if (strchr(threshold_string, ',') != NULL) {
16 // Got a comma in the string, should be multiple values
17 size_t tmp_counter = 0;
18 mp_range range_buffer;
19 bool first_value = true;
20 for (char *ptr = strtok(threshold_string, ", "); ptr != NULL;
21 ptr = strtok(NULL, ", "), tmp_counter++) {
22
23 // edge case: maybe we got `,,` to skip a value
24 if (strlen(ptr) == 0) {
25 // use the previous value in this case
26 // or do not overwrite the loop value to be specific
27 if (first_value) {
28 die(STATE_UNKNOWN, "Empty threshold value");
29 }
30 } else {
31 mp_range_parsed tmp = mp_parse_range_string(ptr);
32 if (tmp.error != MP_PARSING_SUCCES) {
33 die(STATE_UNKNOWN, "Unable to parse critical threshold range: %s", ptr);
34 }
35 range_buffer = tmp.range;
36 }
37
38 if (is_critical) {
39 tu[tmp_counter].threshold.critical = range_buffer;
40 tu[tmp_counter].threshold.critical_is_set = true;
41 } else {
42 tu[tmp_counter].threshold.warning = range_buffer;
43 tu[tmp_counter].threshold.warning_is_set = true;
44 }
45 first_value = false;
46 }
47 } else {
48 // Single value
49 mp_range_parsed tmp = mp_parse_range_string(threshold_string);
50 if (tmp.error != MP_PARSING_SUCCES) {
51 die(STATE_UNKNOWN, "Unable to parse critical threshold range: %s", threshold_string);
52 }
53
54 for (size_t i = 0; i < max_test_units; i++) {
55 if (is_critical) {
56 tu[i].threshold.critical = tmp.range;
57 tu[i].threshold.critical_is_set = true;
58 } else {
59 tu[i].threshold.warning = tmp.range;
60 tu[i].threshold.warning_is_set = true;
61 }
62 }
63 }
64
65 return 0;
66}
67
68const int DEFAULT_PROTOCOL = SNMP_VERSION_1;
69const char DEFAULT_OUTPUT_DELIMITER[] = " ";
70
71const int RANDOM_STATE_DATA_LENGTH_PREDICTION = 1024;
72
73check_snmp_config check_snmp_config_init() {
74 check_snmp_config tmp = {
75 .use_getnext = false,
76
77 .ignore_mib_parsing_errors = false,
78 .need_mibs = false,
79
80 .test_units = NULL,
81 .num_of_test_units = 0,
82
83 .nulloid_result = STATE_UNKNOWN, // state to return if no result for query
84
85 .invert_search = true,
86 .regex_cmp_value = {},
87 .string_cmp_value = "",
88
89 .multiplier = 1.0,
90 .offset = 0,
91
92 .use_perf_data_labels_from_input = false,
93 };
94
95 snmp_sess_init(&tmp.snmp_session);
96
97 tmp.snmp_session.retries = DEFAULT_RETRIES;
98 tmp.snmp_session.version = DEFAULT_SNMP_VERSION;
99 tmp.snmp_session.securityLevel = SNMP_SEC_LEVEL_NOAUTH;
100 tmp.snmp_session.community = (unsigned char *)"public";
101 tmp.snmp_session.community_len = strlen("public");
102 return tmp;
103}
diff --git a/plugins/check_snmp.d/check_snmp_helpers.h b/plugins/check_snmp.d/check_snmp_helpers.h
new file mode 100644
index 00000000..74e7d0cd
--- /dev/null
+++ b/plugins/check_snmp.d/check_snmp_helpers.h
@@ -0,0 +1,8 @@
1#pragma once
2
3#include "./config.h"
4
5check_snmp_test_unit check_snmp_test_unit_init();
6int check_snmp_set_thresholds(char *threshold_string, check_snmp_test_unit tu[],
7 size_t max_test_units, bool is_critical);
8check_snmp_config check_snmp_config_init();
diff --git a/plugins/check_snmp.d/config.h b/plugins/check_snmp.d/config.h
index e2e1d6c2..ca624a81 100644
--- a/plugins/check_snmp.d/config.h
+++ b/plugins/check_snmp.d/config.h
@@ -1,11 +1,11 @@
1#pragma once 1#pragma once
2 2
3#include "states.h"
4#include "thresholds.h" 3#include "thresholds.h"
5#include "utils_base.h" 4#include "states.h"
6#include <stdlib.h> 5#include <stdlib.h>
7#include <stdbool.h> 6#include <stdbool.h>
8#include <regex.h> 7#include <regex.h>
8#include "../common.h"
9 9
10// defines for snmp libs 10// defines for snmp libs
11#define u_char unsigned char 11#define u_char unsigned char
@@ -18,12 +18,8 @@
18#include <net-snmp/library/snmp.h> 18#include <net-snmp/library/snmp.h>
19#include <net-snmp/session_api.h> 19#include <net-snmp/session_api.h>
20 20
21const int DEFAULT_PROTOCOL = SNMP_VERSION_1; 21#define DEFAULT_PORT "161"
22const char DEFAULT_PORT[] = "161"; 22#define DEFAULT_RETRIES 5
23const char DEFAULT_OUTPUT_DELIMITER[] = " ";
24const int DEFAULT_RETRIES = 5;
25
26const int RANDOM_STATE_DATA_LENGTH_PREDICTION = 1024;
27 23
28typedef struct eval_method { 24typedef struct eval_method {
29 bool crit_string; 25 bool crit_string;
@@ -35,13 +31,9 @@ typedef struct check_snmp_test_unit {
35 char *label; 31 char *label;
36 char *unit_value; 32 char *unit_value;
37 eval_method eval_mthd; 33 eval_method eval_mthd;
34 mp_thresholds threshold;
38} check_snmp_test_unit; 35} check_snmp_test_unit;
39 36
40check_snmp_test_unit check_snmp_test_unit_init() {
41 check_snmp_test_unit tmp = {};
42 return tmp;
43}
44
45typedef struct check_snmp_config { 37typedef struct check_snmp_config {
46 // SNMP session to use 38 // SNMP session to use
47 struct snmp_session snmp_session; 39 struct snmp_session snmp_session;
@@ -55,7 +47,6 @@ typedef struct check_snmp_config {
55 47
56 check_snmp_test_unit *test_units; 48 check_snmp_test_unit *test_units;
57 size_t num_of_test_units; 49 size_t num_of_test_units;
58 mp_thresholds thresholds;
59 50
60 // State if an empty value is encountered 51 // State if an empty value is encountered
61 mp_state_enum nulloid_result; 52 mp_state_enum nulloid_result;
@@ -72,36 +63,3 @@ typedef struct check_snmp_config {
72 // Modify output 63 // Modify output
73 bool use_perf_data_labels_from_input; 64 bool use_perf_data_labels_from_input;
74} check_snmp_config; 65} check_snmp_config;
75
76check_snmp_config check_snmp_config_init() {
77 check_snmp_config tmp = {
78 .use_getnext = false,
79
80 .ignore_mib_parsing_errors = false,
81 .need_mibs = false,
82
83 .test_units = NULL,
84 .num_of_test_units = 0,
85 .thresholds = mp_thresholds_init(),
86
87 .nulloid_result = STATE_UNKNOWN, // state to return if no result for query
88
89 .invert_search = true,
90 .regex_cmp_value = {},
91 .string_cmp_value = "",
92
93 .multiplier = 1.0,
94 .offset = 0,
95
96 .use_perf_data_labels_from_input = false,
97 };
98
99 snmp_sess_init(&tmp.snmp_session);
100
101 tmp.snmp_session.retries = DEFAULT_RETRIES;
102 tmp.snmp_session.version = DEFAULT_SNMP_VERSION;
103 tmp.snmp_session.securityLevel = SNMP_SEC_LEVEL_NOAUTH;
104 tmp.snmp_session.community = (unsigned char *)"public";
105 tmp.snmp_session.community_len = strlen("public");
106 return tmp;
107}