From 024d268386353133af1a9ff5c0b5879397c19b1c Mon Sep 17 00:00:00 2001 From: Sven Nierlein Date: Wed, 17 Nov 2021 11:58:41 +0100 Subject: check_snmp: fix performance thresholds when using multiple oids when using check_snmp with multiple oids it simply printed the unparsed content from -w/-c into the thresholds for each oid. So each oid contained the hole -w from all oids. ./check_snmp ... -o iso.3.6.1.2.1.25.1.3.0,iso.3.6.1.2.1.25.1.5.0 -w '1,2' -c '3,4' before: SNMP ... | HOST-RESOURCES-MIB::hrSystemInitialLoadDevice.0=393216;1,2;3,4 HOST-RESOURCES-MIB::hrSystemNumUsers.0=24;1,2;3,4 after: SNMP ... | HOST-RESOURCES-MIB::hrSystemInitialLoadDevice.0=393216;1;3 HOST-RESOURCES-MIB::hrSystemNumUsers.0=24;2;4 This also applies to fixed thresholds since check_snmp translates negative infinities from: '~:-1' to '@-1:~' --- lib/utils_base.c | 2 +- lib/utils_base.h | 1 + plugins/check_snmp.c | 9 +++++++-- plugins/tests/check_snmp.t | 17 ++++++++++++++--- 4 files changed, 23 insertions(+), 6 deletions(-) diff --git a/lib/utils_base.c b/lib/utils_base.c index fd7058da..08fa215c 100644 --- a/lib/utils_base.c +++ b/lib/utils_base.c @@ -128,6 +128,7 @@ range temp_range->end = 0; temp_range->end_infinity = TRUE; temp_range->alert_on = OUTSIDE; + temp_range->text = strdup(str); if (str[0] == '@') { temp_range->alert_on = INSIDE; @@ -706,4 +707,3 @@ void np_state_write_string(time_t data_time, char *data_string) { np_free(temp_file); } - diff --git a/lib/utils_base.h b/lib/utils_base.h index d7e7dffa..9482f23b 100644 --- a/lib/utils_base.h +++ b/lib/utils_base.h @@ -23,6 +23,7 @@ typedef struct range_struct { double end; int end_infinity; int alert_on; /* OUTSIDE (default) or INSIDE */ + char* text; /* original unparsed text input */ } range; typedef struct thresholds_struct { diff --git a/plugins/check_snmp.c b/plugins/check_snmp.c index afc568b2..58d46b11 100644 --- a/plugins/check_snmp.c +++ b/plugins/check_snmp.c @@ -468,6 +468,9 @@ main (int argc, char **argv) /* Process this block for numeric comparisons */ /* Make some special values,like Timeticks numeric only if a threshold is defined */ if (thlds[i]->warning || thlds[i]->critical || calculate_rate) { + if (verbose > 2) { + print_thresholds(" thresholds", thlds[i]); + } ptr = strpbrk (show, "-0123456789"); if (ptr == NULL) die (STATE_UNKNOWN,_("No valid data returned (%s)\n"), show); @@ -581,14 +584,16 @@ main (int argc, char **argv) if (warning_thresholds) { strncat(perfstr, ";", sizeof(perfstr)-strlen(perfstr)-1); - strncat(perfstr, warning_thresholds, sizeof(perfstr)-strlen(perfstr)-1); + if(thlds[i]->warning && thlds[i]->warning->text) + strncat(perfstr, thlds[i]->warning->text, sizeof(perfstr)-strlen(perfstr)-1); } if (critical_thresholds) { if (!warning_thresholds) strncat(perfstr, ";", sizeof(perfstr)-strlen(perfstr)-1); strncat(perfstr, ";", sizeof(perfstr)-strlen(perfstr)-1); - strncat(perfstr, critical_thresholds, sizeof(perfstr)-strlen(perfstr)-1); + if(thlds[i]->critical && thlds[i]->critical->text) + strncat(perfstr, thlds[i]->critical->text, sizeof(perfstr)-strlen(perfstr)-1); } strncat(perfstr, " ", sizeof(perfstr)-strlen(perfstr)-1); diff --git a/plugins/tests/check_snmp.t b/plugins/tests/check_snmp.t index 85d6bf55..0a77fa8a 100755 --- a/plugins/tests/check_snmp.t +++ b/plugins/tests/check_snmp.t @@ -9,7 +9,7 @@ use NPTest; use FindBin qw($Bin); use POSIX qw/strftime/; -my $tests = 67; +my $tests = 73; # Check that all dependent modules are available eval { require NetSNMP::OID; @@ -251,9 +251,20 @@ is($res->output, 'SNMP CRITICAL - *-4* | iso.3.6.1.4.1.8072.3.2.67.17=-4;-2:;-3: $res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.18 -c '~:-6.5'" ); is($res->return_code, 0, "Negative float OK" ); -is($res->output, 'SNMP OK - -6.6 | iso.3.6.1.4.1.8072.3.2.67.18=-6.6;;~:-6.5 ', "Negative float OK output" ); +is($res->output, 'SNMP OK - -6.6 | iso.3.6.1.4.1.8072.3.2.67.18=-6.6;;@-6.5:~ ', "Negative float OK output" ); $res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.18 -w '~:-6.65' -c '~:-6.55'" ); is($res->return_code, 1, "Negative float WARNING" ); -is($res->output, 'SNMP WARNING - *-6.6* | iso.3.6.1.4.1.8072.3.2.67.18=-6.6;~:-6.65;~:-6.55 ', "Negative float WARNING output" ); +is($res->output, 'SNMP WARNING - *-6.6* | iso.3.6.1.4.1.8072.3.2.67.18=-6.6;@-6.65:~;@-6.55:~ ', "Negative float WARNING output" ); +$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10,.1.3.6.1.4.1.8072.3.2.67.17 -w '1:100000,-10:20' -c '2:200000,-20:30'" ); +is($res->return_code, 0, "Multiple OIDs with thresholds" ); +like($res->output, '/SNMP OK - \d+ -4 | iso.3.6.1.4.1.8072.3.2.67.10=\d+c;1:100000;2:200000 iso.3.6.1.4.1.8072.3.2.67.17=-4;-10:20;-20:30/', "Multiple OIDs with thresholds output" ); + +$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10,.1.3.6.1.4.1.8072.3.2.67.17 -w '1:100000,-1:2' -c '2:200000,-20:30'" ); +is($res->return_code, 1, "Multiple OIDs with thresholds" ); +like($res->output, '/SNMP WARNING - \d+ \*-4\* | iso.3.6.1.4.1.8072.3.2.67.10=\d+c;1:100000;2:200000 iso.3.6.1.4.1.8072.3.2.67.17=-4;-10:20;-20:30/', "Multiple OIDs with thresholds output" ); + +$res = NPTest->testCmd( "./check_snmp -H 127.0.0.1 -C public -p $port_snmp -o .1.3.6.1.4.1.8072.3.2.67.10,.1.3.6.1.4.1.8072.3.2.67.17 -w 1,2 -c 1" ); +is($res->return_code, 2, "Multiple OIDs with some thresholds" ); +like($res->output, '/SNMP CRITICAL - \*\d+\* \*-4\* | iso.3.6.1.4.1.8072.3.2.67.10=\d+c;1;2 iso.3.6.1.4.1.8072.3.2.67.17=-4;;/', "Multiple OIDs with thresholds output" ); -- cgit v1.2.3-74-g34f1