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// Copyright 2017 syzkaller project authors. All rights reserved.
// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
package main
import (
"context"
"fmt"
"net/http"
"strconv"
"cloud.google.com/go/batch/apiv1/batchpb"
"cloud.google.com/go/bigquery"
"cloud.google.com/go/civil"
"github.com/google/syzkaller/pkg/coveragedb"
"google.golang.org/api/iterator"
"google.golang.org/appengine/v2/log"
)
const batchCoverageTimeoutSeconds = 60 * 60 * 12
func handleBatchCoverage(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
doQuarters := r.FormValue("quarters") == "true"
doMonths := r.FormValue("months") == "true"
doDays := r.FormValue("days") == "true"
maxSteps, err := strconv.Atoi(r.FormValue("steps"))
if err != nil {
log.Errorf(ctx, "failed to convert &steps= into maxSteps: %s", err.Error())
return
}
for ns, nsConfig := range getConfig(ctx).Namespaces {
if nsConfig.Coverage == nil {
continue
}
repo, branch := nsConfig.mainRepoBranch()
if repo == "" || branch == "" {
log.Errorf(ctx, "can't find default repo or branch for ns %s", ns)
continue
}
daysAvailable, rowsAvailable, err := nsDataAvailable(ctx, ns)
if err != nil {
log.Errorf(ctx, "failed nsDataAvailable(%s): %s", ns, err)
}
periodsMerged, rowsMerged, err := coveragedb.NsDataMerged(ctx, coverageDBClient, ns)
if err != nil {
log.Errorf(ctx, "failed coveragedb.NsDataMerged(%s): %s", ns, err)
}
var periods []coveragedb.TimePeriod
if doDays {
periods = append(periods, coveragedb.PeriodsToMerge(daysAvailable, periodsMerged, rowsAvailable, rowsMerged,
&coveragedb.DayPeriodOps{})...)
}
if doMonths {
periods = append(periods, coveragedb.PeriodsToMerge(daysAvailable, periodsMerged, rowsAvailable, rowsMerged,
&coveragedb.MonthPeriodOps{})...)
}
if doQuarters {
periods = append(periods, coveragedb.PeriodsToMerge(daysAvailable, periodsMerged, rowsAvailable, rowsMerged,
&coveragedb.QuarterPeriodOps{})...)
}
if len(periods) == 0 {
log.Infof(ctx, "there is no new coverage for merging available in %s", ns)
continue
}
periods = coveragedb.AtMostNLatestPeriods(periods, maxSteps)
nsCovConfig := nsConfig.Coverage
serviceAccount := &batchpb.ServiceAccount{
Email: nsCovConfig.BatchServiceAccount,
Scopes: nsCovConfig.BatchScopes,
}
if err := createScriptJob(ctx, nsCovConfig.BatchProject, "coverage-merge",
batchCoverageScript(ns, repo, branch, periods,
nsCovConfig.JobInitScript,
nsCovConfig.SyzEnvInitScript,
nsCovConfig.DashboardClientName),
batchCoverageTimeoutSeconds,
serviceAccount,
); err != nil {
log.Errorf(ctx, "failed to batchCoverageScript: %s", err.Error())
}
}
}
func batchCoverageScript(ns, repo, branch string, periods []coveragedb.TimePeriod,
jobInitScript, syzEnvInitScript, clientName string) string {
if clientName == "" {
clientName = defaultDashboardClientName
}
script := jobInitScript + "\n"
script += "git clone -q --depth 1 --branch master --single-branch https://github.com/google/syzkaller\n" +
"cd syzkaller\n" +
"export CI=1\n" +
"./tools/syz-env \""
if syzEnvInitScript != "" {
script += syzEnvInitScript + "; "
}
for _, period := range periods {
script += "./tools/syz-bq.sh" +
" -w ../workdir-cover-aggregation/" +
" -n " + ns +
" -r " + repo +
" -b " + branch +
" -d " + strconv.Itoa(period.Days) +
" -t " + period.DateTo.String() +
" -c " + clientName +
" 2>&1; " // we don't want stderr output to be logged as errors
}
script += "\""
return script
}
func nsDataAvailable(ctx context.Context, ns string) ([]coveragedb.TimePeriod, []int64, error) {
client, err := bigquery.NewClient(ctx, "syzkaller")
if err != nil {
return nil, nil, fmt.Errorf("failed to initialize bigquery client: %w", err)
}
if err := client.EnableStorageReadClient(ctx); err != nil {
return nil, nil, fmt.Errorf("failed to client.EnableStorageReadClient: %w", err)
}
q := client.Query(fmt.Sprintf(`
SELECT
PARSE_DATE('%%Y%%m%%d', partition_id) as partitiondate,
total_rows as records
FROM
syzkaller.syzbot_coverage.INFORMATION_SCHEMA.PARTITIONS
WHERE table_name LIKE '%s'
`, ns))
it, err := q.Read(ctx)
if err != nil {
return nil, nil, fmt.Errorf("failed to Read() from bigquery: %w", err)
}
var periods []coveragedb.TimePeriod
var recordsCount []int64
for {
var values struct {
PartitionDate civil.Date
Records int64
}
err = it.Next(&values)
if err == iterator.Done {
break
}
if err != nil {
return nil, nil, fmt.Errorf("failed to it.Next() bigquery records: %w", err)
}
periods = append(periods, coveragedb.TimePeriod{DateTo: values.PartitionDate, Days: 1})
recordsCount = append(recordsCount, values.Records)
}
return periods, recordsCount, nil
}
func handleBatchCoverageClean(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
totalDeleted, err := coveragedb.DeleteGarbage(ctx, coverageDBClient)
if err != nil {
errMsg := fmt.Sprintf("failed to coveragedb.DeleteGarbage: %s", err.Error())
log.Errorf(ctx, "%s", errMsg)
w.Write([]byte(errMsg))
return
}
logMsg := fmt.Sprintf("successfully deleted %d rows\n", totalDeleted)
log.Infof(ctx, "%s", logMsg)
w.Write([]byte(logMsg))
}
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