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// Copyright 2019 The gVisor 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.
package nogo
import (
"golang.org/x/tools/go/analysis"
"golang.org/x/tools/go/analysis/passes/asmdecl"
"golang.org/x/tools/go/analysis/passes/assign"
"golang.org/x/tools/go/analysis/passes/atomic"
"golang.org/x/tools/go/analysis/passes/bools"
"golang.org/x/tools/go/analysis/passes/buildtag"
"golang.org/x/tools/go/analysis/passes/cgocall"
"golang.org/x/tools/go/analysis/passes/composite"
"golang.org/x/tools/go/analysis/passes/copylock"
"golang.org/x/tools/go/analysis/passes/errorsas"
"golang.org/x/tools/go/analysis/passes/httpresponse"
"golang.org/x/tools/go/analysis/passes/loopclosure"
"golang.org/x/tools/go/analysis/passes/lostcancel"
"golang.org/x/tools/go/analysis/passes/nilfunc"
"golang.org/x/tools/go/analysis/passes/nilness"
"golang.org/x/tools/go/analysis/passes/printf"
"golang.org/x/tools/go/analysis/passes/shadow"
"golang.org/x/tools/go/analysis/passes/shift"
"golang.org/x/tools/go/analysis/passes/stdmethods"
"golang.org/x/tools/go/analysis/passes/stringintconv"
"golang.org/x/tools/go/analysis/passes/structtag"
"golang.org/x/tools/go/analysis/passes/tests"
"golang.org/x/tools/go/analysis/passes/unmarshal"
"golang.org/x/tools/go/analysis/passes/unreachable"
"golang.org/x/tools/go/analysis/passes/unsafeptr"
"golang.org/x/tools/go/analysis/passes/unusedresult"
"gvisor.dev/gvisor/tools/checkescape"
"gvisor.dev/gvisor/tools/checkunsafe"
)
var analyzerConfig = map[*analysis.Analyzer]matcher{
// Standard analyzers.
asmdecl.Analyzer: alwaysMatches(),
assign.Analyzer: externalExcluded(
".*gazelle/walk/walk.go", // False positive.
),
atomic.Analyzer: alwaysMatches(),
bools.Analyzer: alwaysMatches(),
buildtag.Analyzer: alwaysMatches(),
cgocall.Analyzer: alwaysMatches(),
composite.Analyzer: and(
disableMatches(), // Disabled for now.
resultExcluded{
"Object_",
"Range{",
},
),
copylock.Analyzer: internalMatches(), // Common external issues (e.g. protos).
errorsas.Analyzer: alwaysMatches(),
httpresponse.Analyzer: alwaysMatches(),
loopclosure.Analyzer: alwaysMatches(),
lostcancel.Analyzer: internalMatches(), // Common external issues.
nilfunc.Analyzer: alwaysMatches(),
nilness.Analyzer: and(
internalMatches(), // Common "tautological checks".
internalExcluded(
"pkg/sentry/platform/kvm/kvm_test.go", // Intentional.
"tools/bigquery/bigquery.go", // False positive.
),
),
printf.Analyzer: alwaysMatches(),
shift.Analyzer: alwaysMatches(),
stdmethods.Analyzer: internalMatches(), // Common external issues (e.g. methods named "Write").
stringintconv.Analyzer: and(
internalExcluded(),
externalExcluded(
".*protobuf/.*.go", // Bad conversions.
".*flate/huffman_bit_writer.go", // Bad conversion.
// Runtime internal violations.
".*reflect/value.go",
".*encoding/xml/xml.go",
".*runtime/pprof/internal/profile/proto.go",
".*fmt/scan.go",
".*go/types/conversions.go",
".*golang.org/x/net/dns/dnsmessage/message.go",
),
),
shadow.Analyzer: disableMatches(), // Disabled for now.
structtag.Analyzer: internalMatches(), // External not subject to rules.
tests.Analyzer: alwaysMatches(),
unmarshal.Analyzer: alwaysMatches(),
unreachable.Analyzer: internalMatches(),
unsafeptr.Analyzer: and(
internalMatches(),
internalExcluded(
".*_test.go", // Exclude tests.
"pkg/flipcall/.*_unsafe.go", // Special case.
"pkg/gohacks/gohacks_unsafe.go", // Special case.
"pkg/sentry/fs/fsutil/host_file_mapper_unsafe.go", // Special case.
"pkg/sentry/platform/kvm/bluepill_unsafe.go", // Special case.
"pkg/sentry/platform/kvm/machine_unsafe.go", // Special case.
"pkg/sentry/platform/ring0/pagetables/allocator_unsafe.go", // Special case.
"pkg/sentry/platform/safecopy/safecopy_unsafe.go", // Special case.
"pkg/sentry/vfs/mount_unsafe.go", // Special case.
"pkg/sentry/platform/systrap/stub_unsafe.go", // Special case.
"pkg/sentry/platform/systrap/switchto_google_unsafe.go", // Special case.
"pkg/sentry/platform/systrap/sysmsg_thread_unsafe.go", // Special case.
),
),
unusedresult.Analyzer: alwaysMatches(),
// Internal analyzers: external packages not subject.
checkescape.Analyzer: internalMatches(),
checkunsafe.Analyzer: internalMatches(),
}
var escapesConfig = map[*analysis.Analyzer]matcher{
// Informational only: include all packages.
checkescape.EscapeAnalyzer: alwaysMatches(),
}
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