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Viewing File: /opt/go/pkg/mod/github.com/prometheus/procfs@v0.15.1/sysfs/vulnerability_test.go

// Copyright 2023 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//go:build linux
// +build linux

package sysfs

import (
	"fmt"
	"reflect"
	"testing"
)

func TestFS_CPUVulnerabilities(t *testing.T) {
	sysFs, err := NewFS(sysTestFixtures)
	if err != nil {
		t.Fatal(fmt.Errorf("failed to get sysfs FS: %w", err))
	}
	got, err := sysFs.CPUVulnerabilities()
	if err != nil {
		t.Fatal(fmt.Errorf("failed to parse sysfs vulnerabilities files: %w", err))
	}

	tests := []struct {
		name              string
		vulnerabilityName string
		want              *Vulnerability
		wantErr           bool
	}{
		{"Not affected", "tsx_async_abort", &Vulnerability{CodeName: "tsx_async_abort", State: VulnerabilityStateNotAffected, Mitigation: ""}, false},
		{"Mitigation simple string", "spec_store_bypass", &Vulnerability{CodeName: "spec_store_bypass", State: VulnerabilityStateMitigation, Mitigation: "Speculative Store Bypass disabled via prctl"}, false},
		{"Mitigation special chars", "retbleed", &Vulnerability{CodeName: "retbleed", State: VulnerabilityStateMitigation, Mitigation: "untrained return thunk; SMT enabled with STIBP protection"}, false},
		{"Mitigation more special chars", "spectre_v1", &Vulnerability{CodeName: "spectre_v1", State: VulnerabilityStateMitigation, Mitigation: "usercopy/swapgs barriers and __user pointer sanitization"}, false},
		{"Mitigation with multiple subsections", "spectre_v2", &Vulnerability{CodeName: "spectre_v2", State: VulnerabilityStateMitigation, Mitigation: "Retpolines, IBPB: conditional, STIBP: always-on, RSB filling, PBRSB-eIBRS: Not affected"}, false},
		{"Vulnerable", "mds", &Vulnerability{CodeName: "mds", State: VulnerabilityStateVulnerable, Mitigation: ""}, false},
		{"Vulnerable with mitigation available", "mmio_stale_data", &Vulnerability{CodeName: "mmio_stale_data", State: VulnerabilityStateVulnerable, Mitigation: "Clear CPU buffers attempted, no microcode"}, false},
		{"Unknown", "srbds", &Vulnerability{CodeName: "srbds", State: VulnerabilityStateUnknown, Mitigation: "Dependent on hypervisor status"}, false},
		{"Unknown with unparseable mitigation", "itlb_multihit", &Vulnerability{CodeName: "itlb_multihit", State: VulnerabilityStateUnknown, Mitigation: "KVM: Mitigation: VMX unsupported"}, false},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			gotVulnerability, ok := got[tt.vulnerabilityName]
			if !ok && !tt.wantErr {
				t.Errorf("CPUVulnerabilities() vulnerability %s not found", tt.vulnerabilityName)
			}
			if !reflect.DeepEqual(gotVulnerability, tt.want) {
				t.Errorf("CPUVulnerabilities() gotVulnerability = %v, want %v", gotVulnerability, tt.want)
			}
		})
	}
}
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