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// Copyright 2023 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !noxfrm
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// +build !noxfrm
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package collector
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import (
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"fmt"
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"io"
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"log/slog"
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"strings"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/testutil"
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)
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type testXfrmCollector struct {
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xc Collector
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}
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func (c testXfrmCollector) Collect(ch chan<- prometheus.Metric) {
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c.xc.Update(ch)
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}
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func (c testXfrmCollector) Describe(ch chan<- *prometheus.Desc) {
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prometheus.DescribeByCollect(c, ch)
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}
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func TestXfrmStats(t *testing.T) {
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testcase := `# HELP node_xfrm_acquire_error_packets_total State hasn’t been fully acquired before use
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# TYPE node_xfrm_acquire_error_packets_total counter
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node_xfrm_acquire_error_packets_total 24532
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# HELP node_xfrm_fwd_hdr_error_packets_total Forward routing of a packet is not allowed
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# TYPE node_xfrm_fwd_hdr_error_packets_total counter
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node_xfrm_fwd_hdr_error_packets_total 6654
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# HELP node_xfrm_in_buffer_error_packets_total No buffer is left
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# TYPE node_xfrm_in_buffer_error_packets_total counter
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node_xfrm_in_buffer_error_packets_total 2
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# HELP node_xfrm_in_error_packets_total All errors not matched by other
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# TYPE node_xfrm_in_error_packets_total counter
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node_xfrm_in_error_packets_total 1
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# HELP node_xfrm_in_hdr_error_packets_total Header error
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# TYPE node_xfrm_in_hdr_error_packets_total counter
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node_xfrm_in_hdr_error_packets_total 4
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# HELP node_xfrm_in_no_pols_packets_total No policy is found for states e.g. Inbound SAs are correct but no SP is found
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# TYPE node_xfrm_in_no_pols_packets_total counter
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node_xfrm_in_no_pols_packets_total 65432
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# HELP node_xfrm_in_no_states_packets_total No state is found i.e. Either inbound SPI, address, or IPsec protocol at SA is wrong
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# TYPE node_xfrm_in_no_states_packets_total counter
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node_xfrm_in_no_states_packets_total 3
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# HELP node_xfrm_in_pol_block_packets_total Policy discards
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# TYPE node_xfrm_in_pol_block_packets_total counter
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node_xfrm_in_pol_block_packets_total 100
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# HELP node_xfrm_in_pol_error_packets_total Policy error
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# TYPE node_xfrm_in_pol_error_packets_total counter
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node_xfrm_in_pol_error_packets_total 10000
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# HELP node_xfrm_in_state_expired_packets_total State is expired
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# TYPE node_xfrm_in_state_expired_packets_total counter
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node_xfrm_in_state_expired_packets_total 7
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# HELP node_xfrm_in_state_invalid_packets_total State is invalid
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# TYPE node_xfrm_in_state_invalid_packets_total counter
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node_xfrm_in_state_invalid_packets_total 55555
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# HELP node_xfrm_in_state_mismatch_packets_total State has mismatch option e.g. UDP encapsulation type is mismatch
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# TYPE node_xfrm_in_state_mismatch_packets_total counter
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node_xfrm_in_state_mismatch_packets_total 23451
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# HELP node_xfrm_in_state_mode_error_packets_total Transformation mode specific error
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# TYPE node_xfrm_in_state_mode_error_packets_total counter
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node_xfrm_in_state_mode_error_packets_total 100
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# HELP node_xfrm_in_state_proto_error_packets_total Transformation protocol specific error e.g. SA key is wrong
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# TYPE node_xfrm_in_state_proto_error_packets_total counter
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node_xfrm_in_state_proto_error_packets_total 40
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# HELP node_xfrm_in_state_seq_error_packets_total Sequence error i.e. Sequence number is out of window
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# TYPE node_xfrm_in_state_seq_error_packets_total counter
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node_xfrm_in_state_seq_error_packets_total 6000
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# HELP node_xfrm_in_tmpl_mismatch_packets_total No matching template for states e.g. Inbound SAs are correct but SP rule is wrong
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# TYPE node_xfrm_in_tmpl_mismatch_packets_total counter
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node_xfrm_in_tmpl_mismatch_packets_total 51
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# HELP node_xfrm_out_bundle_check_error_packets_total Bundle check error
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# TYPE node_xfrm_out_bundle_check_error_packets_total counter
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node_xfrm_out_bundle_check_error_packets_total 555
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# HELP node_xfrm_out_bundle_gen_error_packets_total Bundle generation error
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# TYPE node_xfrm_out_bundle_gen_error_packets_total counter
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node_xfrm_out_bundle_gen_error_packets_total 43321
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# HELP node_xfrm_out_error_packets_total All errors which is not matched others
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# TYPE node_xfrm_out_error_packets_total counter
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node_xfrm_out_error_packets_total 1e+06
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# HELP node_xfrm_out_no_states_packets_total No state is found
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# TYPE node_xfrm_out_no_states_packets_total counter
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node_xfrm_out_no_states_packets_total 869
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# HELP node_xfrm_out_pol_block_packets_total Policy discards
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# TYPE node_xfrm_out_pol_block_packets_total counter
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node_xfrm_out_pol_block_packets_total 43456
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# HELP node_xfrm_out_pol_dead_packets_total Policy is dead
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# TYPE node_xfrm_out_pol_dead_packets_total counter
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node_xfrm_out_pol_dead_packets_total 7656
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# HELP node_xfrm_out_pol_error_packets_total Policy error
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# TYPE node_xfrm_out_pol_error_packets_total counter
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node_xfrm_out_pol_error_packets_total 1454
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# HELP node_xfrm_out_state_expired_packets_total State is expired
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# TYPE node_xfrm_out_state_expired_packets_total counter
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node_xfrm_out_state_expired_packets_total 565
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# HELP node_xfrm_out_state_invalid_packets_total State is invalid, perhaps expired
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# TYPE node_xfrm_out_state_invalid_packets_total counter
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node_xfrm_out_state_invalid_packets_total 28765
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# HELP node_xfrm_out_state_mode_error_packets_total Transformation mode specific error
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# TYPE node_xfrm_out_state_mode_error_packets_total counter
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node_xfrm_out_state_mode_error_packets_total 8
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# HELP node_xfrm_out_state_proto_error_packets_total Transformation protocol specific error
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# TYPE node_xfrm_out_state_proto_error_packets_total counter
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node_xfrm_out_state_proto_error_packets_total 4542
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# HELP node_xfrm_out_state_seq_error_packets_total Sequence error i.e. Sequence number overflow
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# TYPE node_xfrm_out_state_seq_error_packets_total counter
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node_xfrm_out_state_seq_error_packets_total 543
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`
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*procPath = "fixtures/proc"
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logger := slog.New(slog.NewTextHandler(io.Discard, nil))
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c, err := NewXfrmCollector(logger)
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if err != nil {
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t.Fatal(err)
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}
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reg := prometheus.NewRegistry()
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reg.MustRegister(&testXfrmCollector{xc: c})
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sink := make(chan prometheus.Metric)
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go func() {
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err = c.Update(sink)
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if err != nil {
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panic(fmt.Errorf("failed to update collector: %s", err))
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}
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close(sink)
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}()
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err = testutil.GatherAndCompare(reg, strings.NewReader(testcase))
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if err != nil {
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t.Fatal(err)
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}
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}
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