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dashapi.go
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dashapi.go
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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 dashapi defines data structures used in dashboard communication
// and provides client interface.
package dashapi
import (
"bytes"
"compress/gzip"
"encoding/json"
"fmt"
"io"
"mime/multipart"
"net/http"
"net/mail"
"reflect"
"time"
"github.com/google/syzkaller/pkg/auth"
)
type Dashboard struct {
Client string
Addr string
Key string
ctor RequestCtor
doer RequestDoer
logger RequestLogger
errorHandler func(error)
}
func New(client, addr, key string) (*Dashboard, error) {
return NewCustom(client, addr, key, http.NewRequest, http.DefaultClient.Do, nil, nil)
}
type (
RequestCtor func(method, url string, body io.Reader) (*http.Request, error)
RequestDoer func(req *http.Request) (*http.Response, error)
RequestLogger func(msg string, args ...interface{})
)
// key == "" indicates that the ambient GCE service account authority
// should be used as a bearer token.
func NewCustom(client, addr, key string, ctor RequestCtor, doer RequestDoer,
logger RequestLogger, errorHandler func(error)) (*Dashboard, error) {
wrappedDoer := doer
if key == "" {
tokenCache, err := auth.MakeCache(ctor, doer)
if err != nil {
return nil, err
}
wrappedDoer = func(req *http.Request) (*http.Response, error) {
token, err := tokenCache.Get(time.Now())
if err != nil {
return nil, err
}
req.Header.Add("Authorization", token)
return doer(req)
}
}
return &Dashboard{
Client: client,
Addr: addr,
Key: key,
ctor: ctor,
doer: wrappedDoer,
logger: logger,
errorHandler: errorHandler,
}, nil
}
// Build describes all aspects of a kernel build.
type Build struct {
Manager string
ID string
OS string
Arch string
VMArch string
SyzkallerCommit string
SyzkallerCommitDate time.Time
CompilerID string
KernelRepo string
KernelBranch string
KernelCommit string
KernelCommitTitle string
KernelCommitDate time.Time
KernelConfig []byte
Commits []string // see BuilderPoll
FixCommits []Commit
Assets []NewAsset
}
type Commit struct {
Hash string
Title string
Author string
AuthorName string
CC []string // deprecated in favor of Recipients
Recipients Recipients
BugIDs []string // ID's extracted from Reported-by tags
Date time.Time
Link string // set if the commit is a part of a reply
}
func (dash *Dashboard) UploadBuild(build *Build) error {
return dash.Query("upload_build", build, nil)
}
// BuilderPoll request is done by kernel builder before uploading a new build
// with UploadBuild request. Response contains list of commit titles that
// dashboard is interested in (i.e. commits that fix open bugs) and email that
// appears in Reported-by tags for bug ID extraction. When uploading a new build
// builder will pass subset of the commit titles that are present in the build
// in Build.Commits field and list of {bug ID, commit title} pairs extracted
// from git log.
type BuilderPollReq struct {
Manager string
}
type BuilderPollResp struct {
PendingCommits []string
ReportEmail string
}
func (dash *Dashboard) BuilderPoll(manager string) (*BuilderPollResp, error) {
req := &BuilderPollReq{
Manager: manager,
}
resp := new(BuilderPollResp)
err := dash.Query("builder_poll", req, resp)
return resp, err
}
// Jobs workflow:
// - syz-ci sends JobResetReq to indicate that no previously started jobs
// are any longer in progress.
// - syz-ci sends JobPollReq periodically to check for new jobs,
// request contains list of managers that this syz-ci runs.
// - dashboard replies with JobPollResp that contains job details,
// if no new jobs available ID is set to empty string.
// - when syz-ci finishes the job, it sends JobDoneReq which contains
// job execution result (Build, Crash or Error details),
// ID must match JobPollResp.ID.
type JobResetReq struct {
Managers []string
}
type JobPollReq struct {
Managers map[string]ManagerJobs
}
type ManagerJobs struct {
TestPatches bool
BisectCause bool
BisectFix bool
}
func (m ManagerJobs) Any() bool {
return m.TestPatches || m.BisectCause || m.BisectFix
}
type JobPollResp struct {
ID string
Type JobType
Manager string
KernelRepo string
// KernelBranch is used for patch testing and serves as the current HEAD
// for bisections.
KernelBranch string
MergeBaseRepo string
MergeBaseBranch string
// Bisection starts from KernelCommit.
KernelCommit string
KernelCommitTitle string
KernelConfig []byte
SyzkallerCommit string
Patch []byte
ReproOpts []byte
ReproSyz []byte
ReproC []byte
}
type JobDoneReq struct {
ID string
Build Build
Error []byte
Log []byte // bisection log
CrashTitle string
CrashAltTitles []string
CrashLog []byte
CrashReport []byte
// Bisection results:
// If there is 0 commits:
// - still happens on HEAD for fix bisection
// - already happened on the oldest release
// If there is 1 commits: bisection result (cause or fix).
// If there are more than 1: suspected commits due to skips (broken build/boot).
Commits []Commit
Flags JobDoneFlags
}
type JobType int
const (
JobTestPatch JobType = iota
JobBisectCause
JobBisectFix
)
type JobDoneFlags int64
const (
BisectResultMerge JobDoneFlags = 1 << iota // bisected to a merge commit
BisectResultNoop // commit does not affect resulting kernel binary
BisectResultRelease // commit is a kernel release
BisectResultIgnore // this particular commit should be ignored, see syz-ci/jobs.go
BisectResultInfraError // the bisect failed due to an infrastructure problem
)
func (flags JobDoneFlags) String() string {
if flags&BisectResultInfraError != 0 {
return "[infra failure]"
}
res := ""
if flags&BisectResultMerge != 0 {
res += "merge "
}
if flags&BisectResultNoop != 0 {
res += "no-op "
}
if flags&BisectResultRelease != 0 {
res += "release "
}
if flags&BisectResultIgnore != 0 {
res += "ignored "
}
if res == "" {
return res
}
return "[" + res + "commit]"
}
func (dash *Dashboard) JobPoll(req *JobPollReq) (*JobPollResp, error) {
resp := new(JobPollResp)
err := dash.Query("job_poll", req, resp)
return resp, err
}
func (dash *Dashboard) JobDone(req *JobDoneReq) error {
return dash.Query("job_done", req, nil)
}
func (dash *Dashboard) JobReset(req *JobResetReq) error {
return dash.Query("job_reset", req, nil)
}
type BuildErrorReq struct {
Build Build
Crash Crash
}
func (dash *Dashboard) ReportBuildError(req *BuildErrorReq) error {
return dash.Query("report_build_error", req, nil)
}
type CommitPollResp struct {
ReportEmail string
Repos []Repo
Commits []string
}
type CommitPollResultReq struct {
Commits []Commit
}
type Repo struct {
URL string
Branch string
}
func (dash *Dashboard) CommitPoll() (*CommitPollResp, error) {
resp := new(CommitPollResp)
err := dash.Query("commit_poll", nil, resp)
return resp, err
}
func (dash *Dashboard) UploadCommits(commits []Commit) error {
if len(commits) == 0 {
return nil
}
return dash.Query("upload_commits", &CommitPollResultReq{commits}, nil)
}
type CrashFlags int64
const (
CrashUnderStrace CrashFlags = 1 << iota
)
// Crash describes a single kernel crash (potentially with repro).
type Crash struct {
BuildID string // refers to Build.ID
Title string
AltTitles []string // alternative titles, used for better deduplication
Corrupted bool // report is corrupted (corrupted title, no stacks, etc)
Suppressed bool
Maintainers []string // deprecated in favor of Recipients
Recipients Recipients
Log []byte
Flags CrashFlags
Report []byte
MachineInfo []byte
Assets []NewAsset
GuiltyFiles []string
// The following is optional and is filled only after repro.
ReproOpts []byte
ReproSyz []byte
ReproC []byte
ReproLog []byte
OriginalTitle string // Title before we began bug reproduction.
}
type ReportCrashResp struct {
NeedRepro bool
}
func (dash *Dashboard) ReportCrash(crash *Crash) (*ReportCrashResp, error) {
resp := new(ReportCrashResp)
err := dash.Query("report_crash", crash, resp)
return resp, err
}
// CrashID is a short summary of a crash for repro queries.
type CrashID struct {
BuildID string
Title string
Corrupted bool
Suppressed bool
MayBeMissing bool
ReproLog []byte
}
type NeedReproResp struct {
NeedRepro bool
}
// NeedRepro checks if dashboard needs a repro for this crash or not.
func (dash *Dashboard) NeedRepro(crash *CrashID) (bool, error) {
resp := new(NeedReproResp)
err := dash.Query("need_repro", crash, resp)
return resp.NeedRepro, err
}
// ReportFailedRepro notifies dashboard about a failed repro attempt for the crash.
func (dash *Dashboard) ReportFailedRepro(crash *CrashID) error {
return dash.Query("report_failed_repro", crash, nil)
}
type LogToReproReq struct {
BuildID string
}
type LogToReproResp struct {
Title string
CrashLog []byte
}
// LogToRepro are crash logs for older bugs that need to be reproduced on the
// querying instance.
func (dash *Dashboard) LogToRepro(req *LogToReproReq) (*LogToReproResp, error) {
resp := new(LogToReproResp)
err := dash.Query("log_to_repro", req, resp)
return resp, err
}
type LogEntry struct {
Name string
Text string
}
// Centralized logging on dashboard.
func (dash *Dashboard) LogError(name, msg string, args ...interface{}) {
req := &LogEntry{
Name: name,
Text: fmt.Sprintf(msg, args...),
}
dash.Query("log_error", req, nil)
}
// BugReport describes a single bug.
// Used by dashboard external reporting.
type BugReport struct {
Type ReportType
BugStatus BugStatus
Namespace string
Config []byte
ID string
JobID string
ExtID string // arbitrary reporting ID forwarded from BugUpdate.ExtID
First bool // Set for first report for this bug (Type == ReportNew).
Moderation bool
NoRepro bool // We don't expect repro (e.g. for build/boot errors).
Title string
Link string // link to the bug on dashboard
CreditEmail string // email for the Reported-by tag
Maintainers []string // deprecated in favor of Recipients
CC []string // deprecated in favor of Recipients
Recipients Recipients
OS string
Arch string
VMArch string
UserSpaceArch string // user-space arch as kernel developers know it (rather than Go names)
BuildID string
BuildTime time.Time
CompilerID string
KernelRepo string
KernelRepoAlias string
KernelBranch string
KernelCommit string
KernelCommitTitle string
KernelCommitDate time.Time
KernelConfig []byte
KernelConfigLink string
SyzkallerCommit string
Log []byte
LogLink string
LogHasStrace bool
Report []byte
ReportLink string
ReproC []byte
ReproCLink string
ReproSyz []byte
ReproSyzLink string
ReproOpts []byte
MachineInfo []byte
MachineInfoLink string
Manager string
CrashID int64 // returned back in BugUpdate
CrashTime time.Time
NumCrashes int64
HappenedOn []string // list of kernel repo aliases
CrashTitle string // job execution crash title
Error []byte // job execution error
ErrorLink string
ErrorTruncated bool // full Error text is too large and was truncated
PatchLink string
BisectCause *BisectResult
BisectFix *BisectResult
Assets []Asset
Subsystems []BugSubsystem
ReportElements *ReportElements
LabelMessages map[string]string // notification messages for bug labels
}
type ReportElements struct {
GuiltyFiles []string
}
type BugSubsystem struct {
Name string
Link string
SetBy string
}
type Asset struct {
Title string
DownloadURL string
Type AssetType
}
type AssetType string
// Asset types used throughout the system.
// DO NOT change them, this will break compatibility with DB content.
const (
BootableDisk AssetType = "bootable_disk"
NonBootableDisk AssetType = "non_bootable_disk"
KernelObject AssetType = "kernel_object"
KernelImage AssetType = "kernel_image"
HTMLCoverageReport AssetType = "html_coverage_report"
MountInRepro AssetType = "mount_in_repro"
)
type BisectResult struct {
Commit *Commit // for conclusive bisection
Commits []*Commit // for inconclusive bisection
LogLink string
CrashLogLink string
CrashReportLink string
Fix bool
CrossTree bool
// In case a missing backport was backported.
Backported *Commit
}
type BugListReport struct {
ID string
Created time.Time
Config []byte
Bugs []BugListItem
TotalStats BugListReportStats
PeriodStats BugListReportStats
PeriodDays int
Link string
Subsystem string
Maintainers []string
Moderation bool
}
type BugListReportStats struct {
Reported int
LowPrio int
Fixed int
}
// BugListItem represents a single bug from the BugListReport entity.
type BugListItem struct {
ID string
Title string
Link string
ReproLevel ReproLevel
Hits int64
}
type BugListUpdate struct {
ID string // copied from BugListReport
ExtID string
Link string
Command BugListUpdateCommand
}
type BugListUpdateCommand string
const (
BugListSentCmd BugListUpdateCommand = "sent"
BugListUpdateCmd BugListUpdateCommand = "update"
BugListUpstreamCmd BugListUpdateCommand = "upstream"
BugListRegenerateCmd BugListUpdateCommand = "regenerate"
)
type BugUpdate struct {
ID string // copied from BugReport
JobID string // copied from BugReport
ExtID string
Link string
Status BugStatus
StatusReason BugStatusReason
Labels []string // the reported labels
ReproLevel ReproLevel
DupOf string
OnHold bool // If set for open bugs, don't upstream this bug.
Notification bool // Reply to a notification.
ResetFixCommits bool // Remove all commits (empty FixCommits means leave intact).
FixCommits []string // Titles of commits that fix this bug.
CC []string // Additional emails to add to CC list in future emails.
CrashID int64 // This is a deprecated field, left here for backward compatibility.
// The new interface that allows to report and unreport several crashes at the same time.
// This is not relevant for emails, but may be important for external reportings.
ReportCrashIDs []int64
UnreportCrashIDs []int64
}
type BugUpdateReply struct {
// Bug update can fail for 2 reason:
// - update does not pass logical validataion, in this case OK=false
// - internal/datastore error, in this case Error=true
OK bool
Error bool
Text string
}
type PollBugsRequest struct {
Type string
}
type PollBugsResponse struct {
Reports []*BugReport
}
type BugNotification struct {
Type BugNotif
Namespace string
Config []byte
ID string
ExtID string // arbitrary reporting ID forwarded from BugUpdate.ExtID
Title string
Text string // meaning depends on Type
Label string // for BugNotifLabel Type specifies the exact label
CC []string // deprecated in favor of Recipients
Maintainers []string // deprecated in favor of Recipients
Link string
Recipients Recipients
TreeJobs []*JobInfo // set for some BugNotifLabel
// Public is what we want all involved people to see (e.g. if we notify about a wrong commit title,
// people need to see it and provide the right title). Not public is what we want to send only
// to a minimal set of recipients (our mailing list) (e.g. notification about an obsoleted bug
// is mostly "for the record").
Public bool
}
type PollNotificationsRequest struct {
Type string
}
type PollNotificationsResponse struct {
Notifications []*BugNotification
}
type PollClosedRequest struct {
IDs []string
}
type PollClosedResponse struct {
IDs []string
}
type DiscussionSource string
const (
NoDiscussion DiscussionSource = ""
DiscussionLore DiscussionSource = "lore"
)
type DiscussionType string
const (
DiscussionReport DiscussionType = "report"
DiscussionPatch DiscussionType = "patch"
DiscussionReminder DiscussionType = "reminder"
DiscussionMention DiscussionType = "mention"
)
type Discussion struct {
ID string
Source DiscussionSource
Type DiscussionType
Subject string
BugIDs []string
Messages []DiscussionMessage
}
type DiscussionMessage struct {
ID string
External bool // true if the message is not from the bot itself
Time time.Time
Email string // not saved to the DB
}
type SaveDiscussionReq struct {
// If the discussion already exists, Messages and BugIDs will be appended to it.
Discussion *Discussion
}
func (dash *Dashboard) SaveDiscussion(req *SaveDiscussionReq) error {
return dash.Query("save_discussion", req, nil)
}
type TestPatchRequest struct {
BugID string
Link string
User string
Repo string
Branch string
Patch []byte
}
type TestPatchReply struct {
ErrorText string
}
func (dash *Dashboard) ReportingPollBugs(typ string) (*PollBugsResponse, error) {
req := &PollBugsRequest{
Type: typ,
}
resp := new(PollBugsResponse)
if err := dash.Query("reporting_poll_bugs", req, resp); err != nil {
return nil, err
}
return resp, nil
}
func (dash *Dashboard) ReportingPollNotifications(typ string) (*PollNotificationsResponse, error) {
req := &PollNotificationsRequest{
Type: typ,
}
resp := new(PollNotificationsResponse)
if err := dash.Query("reporting_poll_notifs", req, resp); err != nil {
return nil, err
}
return resp, nil
}
func (dash *Dashboard) ReportingPollClosed(ids []string) ([]string, error) {
req := &PollClosedRequest{
IDs: ids,
}
resp := new(PollClosedResponse)
if err := dash.Query("reporting_poll_closed", req, resp); err != nil {
return nil, err
}
return resp.IDs, nil
}
func (dash *Dashboard) ReportingUpdate(upd *BugUpdate) (*BugUpdateReply, error) {
resp := new(BugUpdateReply)
if err := dash.Query("reporting_update", upd, resp); err != nil {
return nil, err
}
return resp, nil
}
func (dash *Dashboard) NewTestJob(upd *TestPatchRequest) (*TestPatchReply, error) {
resp := new(TestPatchReply)
if err := dash.Query("new_test_job", upd, resp); err != nil {
return nil, err
}
return resp, nil
}
type ManagerStatsReq struct {
Name string
Addr string
// Current level:
UpTime time.Duration
Corpus uint64
PCs uint64 // coverage
Cover uint64 // what we call feedback signal everywhere else
CrashTypes uint64
// Delta since last sync:
FuzzingTime time.Duration
Crashes uint64
SuppressedCrashes uint64
Execs uint64
// Non-zero only when set.
TriagedCoverage uint64
TriagedPCs uint64
}
func (dash *Dashboard) UploadManagerStats(req *ManagerStatsReq) error {
return dash.Query("manager_stats", req, nil)
}
// Asset lifetime:
// 1. syz-ci uploads it to GCS and reports to the dashboard via add_build_asset.
// 2. dashboard periodically checks if the asset is still needed.
// 3. syz-ci queries needed_assets to figure out which assets are still needed.
// 4. Once an asset is not needed, syz-ci removes the corresponding file.
type NewAsset struct {
DownloadURL string
Type AssetType
}
type AddBuildAssetsReq struct {
BuildID string
Assets []NewAsset
}
func (dash *Dashboard) AddBuildAssets(req *AddBuildAssetsReq) error {
return dash.Query("add_build_assets", req, nil)
}
type NeededAssetsResp struct {
DownloadURLs []string
}
func (dash *Dashboard) NeededAssetsList() (*NeededAssetsResp, error) {
resp := new(NeededAssetsResp)
err := dash.Query("needed_assets", nil, resp)
return resp, err
}
type BugListResp struct {
List []string
}
func (dash *Dashboard) BugList() (*BugListResp, error) {
resp := new(BugListResp)
err := dash.Query("bug_list", nil, resp)
return resp, err
}
type LoadBugReq struct {
ID string
}
func (dash *Dashboard) LoadBug(id string) (*BugReport, error) {
req := LoadBugReq{id}
resp := new(BugReport)
err := dash.Query("load_bug", req, resp)
return resp, err
}
type LoadFullBugReq struct {
BugID string
}
type FullBugInfo struct {
SimilarBugs []*SimilarBugInfo
BisectCause *BugReport
BisectFix *BugReport
Crashes []*BugReport
TreeJobs []*JobInfo
FixCandidate *BugReport
}
type SimilarBugInfo struct {
Title string
Status BugStatus
Namespace string
Link string
ReportLink string
Closed time.Time
ReproLevel ReproLevel
}
func (dash *Dashboard) LoadFullBug(req *LoadFullBugReq) (*FullBugInfo, error) {
resp := new(FullBugInfo)
err := dash.Query("load_full_bug", req, resp)
return resp, err
}
type UpdateReportReq struct {
BugID string
CrashID int64
GuiltyFiles *[]string
}
func (dash *Dashboard) UpdateReport(req *UpdateReportReq) error {
return dash.Query("update_report", req, nil)
}
type (
BugStatus int
BugStatusReason string
BugNotif int
ReproLevel int
ReportType int
)
const (
BugStatusOpen BugStatus = iota
BugStatusUpstream
BugStatusInvalid
BugStatusDup
BugStatusUpdate // aux info update (i.e. ExtID/Link/CC)
BugStatusUnCC // don't CC sender on any future communication
BugStatusFixed
)
const (
InvalidatedByRevokedRepro = BugStatusReason("invalid_no_repro")
InvalidatedByNoActivity = BugStatusReason("invalid_no_activity")
)
const (
// Upstream bug into next reporting.
// If the action succeeds, reporting sends BugStatusUpstream update.
BugNotifUpstream BugNotif = iota
// Bug needs to be closed as obsoleted.
// If the action succeeds, reporting sends BugStatusInvalid update.
BugNotifObsoleted
// Bug fixing commit can't be discovered (wrong commit title).
BugNotifBadCommit
// New bug label has been assigned (only if enabled).
// Text contains the custome message that needs to be delivered to the user.
BugNotifLabel
)
const (
ReproLevelNone ReproLevel = iota
ReproLevelSyz
ReproLevelC
)
const (
ReportNew ReportType = iota // First report for this bug in the reporting stage.
ReportRepro // Found repro for an already reported bug.
ReportTestPatch // Patch testing result.
ReportBisectCause // Cause bisection result for an already reported bug.
ReportBisectFix // Fix bisection result for an already reported bug.
)
type JobInfo struct {
JobKey string
Type JobType
Flags JobDoneFlags
Created time.Time
BugLink string
ExternalLink string
User string
Reporting string
Namespace string
Manager string
BugTitle string
BugID string
KernelRepo string
KernelBranch string
KernelAlias string
KernelCommit string
KernelCommitLink string
KernelLink string
PatchLink string
Attempts int
Started time.Time
Finished time.Time
Duration time.Duration
CrashTitle string
CrashLogLink string
CrashReportLink string
LogLink string
ErrorLink string
ReproCLink string
ReproSyzLink string
Commit *Commit // for conclusive bisection
Commits []*Commit // for inconclusive bisection
Reported bool
InvalidatedBy string
TreeOrigin bool
OnMergeBase bool
}
func (dash *Dashboard) Query(method string, req, reply interface{}) error {
if dash.logger != nil {
dash.logger("API(%v): %#v", method, req)
}
err := dash.queryImpl(method, req, reply)
if err != nil {
if dash.logger != nil {
dash.logger("API(%v): ERROR: %v", method, err)
}
if dash.errorHandler != nil {
dash.errorHandler(err)
}
return err
}
if dash.logger != nil {
dash.logger("API(%v): REPLY: %#v", method, reply)
}
return nil
}
func (dash *Dashboard) queryImpl(method string, req, reply interface{}) error {
if reply != nil {
// json decoding behavior is somewhat surprising
// (see // https://github.com/golang/go/issues/21092).
// To avoid any surprises, we zero the reply.
typ := reflect.TypeOf(reply)
if typ.Kind() != reflect.Ptr {
return fmt.Errorf("resp must be a pointer")
}
reflect.ValueOf(reply).Elem().Set(reflect.New(typ.Elem()).Elem())
}
body := &bytes.Buffer{}
mWriter := multipart.NewWriter(body)
err := mWriter.WriteField("client", dash.Client)
if err != nil {
return err
}
err = mWriter.WriteField("key", dash.Key)
if err != nil {
return err
}
err = mWriter.WriteField("method", method)
if err != nil {
return err
}
if req != nil {
w, err := mWriter.CreateFormField("payload")
if err != nil {
return err
}
data, err := json.Marshal(req)
if err != nil {
return fmt.Errorf("failed to marshal request: %w", err)
}
gz := gzip.NewWriter(w)
if _, err := gz.Write(data); err != nil {
return err
}
if err := gz.Close(); err != nil {
return err
}
}
mWriter.Close()
r, err := dash.ctor("POST", fmt.Sprintf("%v/api", dash.Addr), body)
if err != nil {
return err
}
r.Header.Set("Content-Type", mWriter.FormDataContentType())
resp, err := dash.doer(r)
if err != nil {