mirror of
https://github.com/reactos/syzkaller.git
synced 2024-12-02 08:26:32 +00:00
9604794dce
With this change manager will run reproduction on crashes until reproducer is discovered, but at most 3 times. If reproducer is discovered it is saved with crashes and shown on the web UI.
662 lines
16 KiB
Go
662 lines
16 KiB
Go
// Copyright 2015 syzkaller project authors. All rights reserved.
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// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
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package main
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import (
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"fmt"
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"html/template"
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"io"
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"io/ioutil"
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"net"
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"net/http"
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_ "net/http/pprof"
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"os"
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"path/filepath"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"time"
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"github.com/google/syzkaller/cover"
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. "github.com/google/syzkaller/log"
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"github.com/google/syzkaller/prog"
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"github.com/google/syzkaller/sys"
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)
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const dateFormat = "Jan 02 2006 15:04:05 MST"
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func (mgr *Manager) initHttp() {
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http.HandleFunc("/", mgr.httpSummary)
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http.HandleFunc("/corpus", mgr.httpCorpus)
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http.HandleFunc("/crash", mgr.httpCrash)
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http.HandleFunc("/cover", mgr.httpCover)
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http.HandleFunc("/prio", mgr.httpPrio)
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http.HandleFunc("/file", mgr.httpFile)
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http.HandleFunc("/report", mgr.httpReport)
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ln, err := net.Listen("tcp4", mgr.cfg.Http)
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if err != nil {
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Fatalf("failed to listen on %v: %v", mgr.cfg.Http, err)
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}
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Logf(0, "serving http on http://%v", ln.Addr())
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go func() {
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err := http.Serve(ln, nil)
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Fatalf("failed to serve http: %v", err)
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}()
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}
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func (mgr *Manager) httpSummary(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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data := &UISummaryData{
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Name: mgr.cfg.Name,
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}
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data.Stats = append(data.Stats, UIStat{Name: "uptime", Value: fmt.Sprint(time.Since(mgr.startTime) / 1e9 * 1e9)})
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data.Stats = append(data.Stats, UIStat{Name: "corpus", Value: fmt.Sprint(len(mgr.corpus))})
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data.Stats = append(data.Stats, UIStat{Name: "triage queue", Value: fmt.Sprint(len(mgr.candidates))})
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var err error
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if data.Crashes, err = mgr.collectCrashes(); err != nil {
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http.Error(w, fmt.Sprintf("failed to collect crashes: %v", err), http.StatusInternalServerError)
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return
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}
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type CallCov struct {
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count int
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cov cover.Cover
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}
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calls := make(map[string]*CallCov)
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for _, inp := range mgr.corpus {
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if calls[inp.Call] == nil {
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calls[inp.Call] = new(CallCov)
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}
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cc := calls[inp.Call]
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cc.count++
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cc.cov = cover.Union(cc.cov, cover.Cover(inp.Cover))
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}
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secs := uint64(1)
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if !mgr.firstConnect.IsZero() {
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secs = uint64(time.Since(mgr.firstConnect))/1e9 + 1
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}
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var cov cover.Cover
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totalUnique := mgr.uniqueCover(true)
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for c, cc := range calls {
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cov = cover.Union(cov, cc.cov)
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unique := cover.Intersection(cc.cov, totalUnique)
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data.Calls = append(data.Calls, UICallType{
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Name: c,
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Inputs: cc.count,
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Cover: len(cc.cov),
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UniqueCover: len(unique),
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})
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}
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sort.Sort(UICallTypeArray(data.Calls))
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data.Stats = append(data.Stats, UIStat{Name: "cover", Value: fmt.Sprint(len(cov)), Link: "/cover"})
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var intStats []UIStat
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for k, v := range mgr.stats {
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val := fmt.Sprintf("%v", v)
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if x := v / secs; x >= 10 {
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val += fmt.Sprintf(" (%v/sec)", x)
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} else if x := v * 60 / secs; x >= 10 {
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val += fmt.Sprintf(" (%v/min)", x)
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} else {
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x := v * 60 * 60 / secs
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val += fmt.Sprintf(" (%v/hour)", x)
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}
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intStats = append(intStats, UIStat{Name: k, Value: val})
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}
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sort.Sort(UIStatArray(intStats))
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data.Stats = append(data.Stats, intStats...)
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data.Log = CachedLogOutput()
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if err := summaryTemplate.Execute(w, data); err != nil {
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http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)
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return
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}
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}
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func (mgr *Manager) httpCrash(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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crashID := r.FormValue("id")
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crashes, err := mgr.collectCrashes()
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if err != nil {
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http.Error(w, fmt.Sprintf("failed to collect crashes: %v", err), http.StatusInternalServerError)
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return
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}
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var crash *UICrashType
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for _, c := range crashes {
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if c.ID == crashID {
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crash = &c
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break
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}
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}
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if crash == nil {
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http.Error(w, fmt.Sprintf("can't find crash %v", crashID), http.StatusInternalServerError)
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return
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}
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if err := crashTemplate.Execute(w, crash); err != nil {
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http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)
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return
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}
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}
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func (mgr *Manager) httpCorpus(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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var data []UIInput
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call := r.FormValue("call")
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totalUnique := mgr.uniqueCover(false)
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for i, inp := range mgr.corpus {
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if call != inp.Call {
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continue
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}
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p, err := prog.Deserialize(inp.Prog)
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if err != nil {
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http.Error(w, fmt.Sprintf("failed to deserialize program: %v", err), http.StatusInternalServerError)
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return
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}
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unique := cover.Intersection(inp.Cover, totalUnique)
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data = append(data, UIInput{
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Short: p.String(),
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Full: string(inp.Prog),
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Cover: len(inp.Cover),
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UniqueCover: len(unique),
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N: i,
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})
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}
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sort.Sort(UIInputArray(data))
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if err := corpusTemplate.Execute(w, data); err != nil {
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http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)
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return
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}
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}
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func (mgr *Manager) httpCover(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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var cov cover.Cover
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call := r.FormValue("call")
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unique := r.FormValue("unique") != "" && call != ""
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perCall := false
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if n, err := strconv.Atoi(call); err == nil && n < len(mgr.corpus) {
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cov = mgr.corpus[n].Cover
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} else {
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perCall = true
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for _, inp := range mgr.corpus {
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if call == "" || call == inp.Call {
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cov = cover.Union(cov, cover.Cover(inp.Cover))
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}
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}
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}
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if unique {
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cov = cover.Intersection(cov, mgr.uniqueCover(perCall))
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}
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if err := generateCoverHtml(w, mgr.cfg.Vmlinux, cov); err != nil {
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http.Error(w, fmt.Sprintf("failed to generate coverage profile: %v", err), http.StatusInternalServerError)
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return
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}
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runtime.GC()
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}
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func (mgr *Manager) uniqueCover(perCall bool) cover.Cover {
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totalCover := make(map[uint32]int)
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callCover := make(map[string]map[uint32]bool)
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for _, inp := range mgr.corpus {
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if perCall && callCover[inp.Call] == nil {
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callCover[inp.Call] = make(map[uint32]bool)
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}
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for _, pc := range inp.Cover {
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if perCall {
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if callCover[inp.Call][pc] {
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continue
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}
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callCover[inp.Call][pc] = true
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}
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totalCover[pc]++
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}
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}
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var cov cover.Cover
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for pc, count := range totalCover {
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if count == 1 {
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cov = append(cov, pc)
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}
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}
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cover.Canonicalize(cov)
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return cov
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}
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func (mgr *Manager) httpPrio(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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mgr.minimizeCorpus()
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call := r.FormValue("call")
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idx := -1
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for i, c := range sys.Calls {
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if c.CallName == call {
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idx = i
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break
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}
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}
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if idx == -1 {
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http.Error(w, fmt.Sprintf("unknown call: %v", call), http.StatusInternalServerError)
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return
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}
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data := &UIPrioData{Call: call}
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for i, p := range mgr.prios[idx] {
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data.Prios = append(data.Prios, UIPrio{sys.Calls[i].Name, p})
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}
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sort.Sort(UIPrioArray(data.Prios))
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if err := prioTemplate.Execute(w, data); err != nil {
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http.Error(w, fmt.Sprintf("failed to execute template: %v", err), http.StatusInternalServerError)
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return
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}
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}
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func (mgr *Manager) httpFile(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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file := filepath.Clean(r.FormValue("name"))
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if !strings.HasPrefix(file, "crashes/") && !strings.HasPrefix(file, "corpus/") {
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http.Error(w, "oh, oh, oh!", http.StatusInternalServerError)
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return
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}
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file = filepath.Join(mgr.cfg.Workdir, file)
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f, err := os.Open(file)
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if err != nil {
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http.Error(w, "failed to open the file", http.StatusInternalServerError)
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return
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}
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defer f.Close()
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w.Header().Set("Content-Type", "text/plain; charset=utf-8")
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io.Copy(w, f)
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}
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func (mgr *Manager) httpReport(w http.ResponseWriter, r *http.Request) {
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mgr.mu.Lock()
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defer mgr.mu.Unlock()
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crashID := r.FormValue("id")
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desc, err := ioutil.ReadFile(filepath.Join(mgr.crashdir, crashID, "description"))
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if err != nil {
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http.Error(w, "failed to read description file", http.StatusInternalServerError)
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return
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}
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tag, _ := ioutil.ReadFile(filepath.Join(mgr.crashdir, crashID, "repro.tag"))
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prog, _ := ioutil.ReadFile(filepath.Join(mgr.crashdir, crashID, "repro.prog"))
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cprog, _ := ioutil.ReadFile(filepath.Join(mgr.crashdir, crashID, "repro.cprog"))
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report, _ := ioutil.ReadFile(filepath.Join(mgr.crashdir, crashID, "repro.report"))
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fmt.Fprintf(w, "Syzkaller hit '%s' bug on commit %s.\n\n", trimNewLines(desc), trimNewLines(tag))
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if len(report) != 0 {
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fmt.Fprintf(w, "%s\n\n", report)
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}
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if len(prog) == 0 && len(cprog) == 0 {
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fmt.Fprintf(w, "The bug is not reproducible.\n")
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} else {
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fmt.Fprintf(w, "Syzkaller reproducer:\n%s\n\n", prog)
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if len(cprog) != 0 {
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fmt.Fprintf(w, "C reproducer:\n%s\n\n", cprog)
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}
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}
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}
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func (mgr *Manager) collectCrashes() ([]UICrashType, error) {
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dirs, err := ioutil.ReadDir(mgr.crashdir)
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if err != nil {
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return nil, err
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}
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var crashTypes []UICrashType
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for _, dir := range dirs {
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if !dir.IsDir() || len(dir.Name()) != 40 {
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continue
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}
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desc, err := ioutil.ReadFile(filepath.Join(mgr.crashdir, dir.Name(), "description"))
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if err != nil || len(desc) == 0 {
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continue
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}
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desc = trimNewLines(desc)
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files, err := ioutil.ReadDir(filepath.Join(mgr.crashdir, dir.Name()))
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if err != nil {
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return nil, err
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}
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var maxTime time.Time
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var crashes []UICrash
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for _, f := range files {
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if !strings.HasPrefix(f.Name(), "log") {
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continue
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}
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index, err := strconv.ParseUint(f.Name()[3:], 10, 64)
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if err != nil {
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continue
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}
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tag, _ := ioutil.ReadFile(filepath.Join(mgr.crashdir, dir.Name(), "tag"+strconv.Itoa(int(index))))
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crash := UICrash{
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Index: int(index),
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Time: f.ModTime().Format(dateFormat),
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Log: filepath.Join("crashes", dir.Name(), f.Name()),
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Tag: string(tag),
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}
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reportFile := filepath.Join("crashes", dir.Name(), "report"+strconv.Itoa(int(index)))
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if _, err := os.Stat(filepath.Join(mgr.cfg.Workdir, reportFile)); err == nil {
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crash.Report = reportFile
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}
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crashes = append(crashes, crash)
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if maxTime.Before(f.ModTime()) {
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maxTime = f.ModTime()
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}
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}
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sort.Sort(UICrashArray(crashes))
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triaged := ""
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if _, err := os.Stat(filepath.Join(mgr.crashdir, dir.Name(), "repro.prog")); err == nil {
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if _, err := os.Stat(filepath.Join(mgr.crashdir, dir.Name(), "repro.cprog")); err == nil {
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triaged = "has C repro"
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} else {
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triaged = "has repro"
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}
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} else if _, err := os.Stat(filepath.Join(mgr.crashdir, dir.Name(), "repro.report")); err == nil && !mgr.needRepro(string(desc)) {
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triaged = "non-reproducible"
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}
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crashTypes = append(crashTypes, UICrashType{
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Description: string(desc),
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LastTime: maxTime.Format(dateFormat),
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ID: dir.Name(),
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Count: len(crashes),
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Triaged: triaged,
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Crashes: crashes,
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})
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}
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sort.Sort(UICrashTypeArray(crashTypes))
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return crashTypes, nil
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}
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func trimNewLines(data []byte) []byte {
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for len(data) > 0 && data[len(data)-1] == '\n' {
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data = data[:len(data)-1]
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}
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return data
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}
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type UISummaryData struct {
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Name string
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Stats []UIStat
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Calls []UICallType
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Crashes []UICrashType
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Log string
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}
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type UICrashType struct {
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Description string
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LastTime string
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ID string
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Count int
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Triaged string
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Crashes []UICrash
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}
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type UICrash struct {
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Index int
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Time string
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Log string
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Report string
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Tag string
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}
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type UIStat struct {
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Name string
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Value string
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Link string
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}
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type UICallType struct {
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Name string
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Inputs int
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Cover int
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UniqueCover int
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}
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type UIInput struct {
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Short string
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Full string
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Calls int
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Cover int
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UniqueCover int
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N int
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}
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type UICallTypeArray []UICallType
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func (a UICallTypeArray) Len() int { return len(a) }
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func (a UICallTypeArray) Less(i, j int) bool { return a[i].Name < a[j].Name }
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func (a UICallTypeArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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type UIInputArray []UIInput
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func (a UIInputArray) Len() int { return len(a) }
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func (a UIInputArray) Less(i, j int) bool { return a[i].Cover > a[j].Cover }
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func (a UIInputArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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type UIStatArray []UIStat
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func (a UIStatArray) Len() int { return len(a) }
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func (a UIStatArray) Less(i, j int) bool { return a[i].Name < a[j].Name }
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func (a UIStatArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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type UICrashTypeArray []UICrashType
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func (a UICrashTypeArray) Len() int { return len(a) }
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func (a UICrashTypeArray) Less(i, j int) bool { return a[i].Description < a[j].Description }
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func (a UICrashTypeArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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type UICrashArray []UICrash
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func (a UICrashArray) Len() int { return len(a) }
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func (a UICrashArray) Less(i, j int) bool { return a[i].Index < a[j].Index }
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func (a UICrashArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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var summaryTemplate = template.Must(template.New("").Parse(addStyle(`
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<!doctype html>
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<html>
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<head>
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<title>{{.Name }} syzkaller</title>
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{{STYLE}}
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</head>
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<body>
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<b>{{.Name }} syzkaller</b>
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<br>
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<br>
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<table>
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<caption>Stats:</caption>
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{{range $s := $.Stats}}
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<tr>
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<td>{{$s.Name}}</td>
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{{if $s.Link}}
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<td><a href="{{$s.Link}}">{{$s.Value}}</a></td>
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|
{{else}}
|
|
<td>{{$s.Value}}</td>
|
|
{{end}}
|
|
</tr>
|
|
{{end}}
|
|
</table>
|
|
<br>
|
|
|
|
<table>
|
|
<caption>Crashes:</caption>
|
|
<tr>
|
|
<th>Description</th>
|
|
<th>Count</th>
|
|
<th>Last Time</th>
|
|
<th>Report</th>
|
|
</tr>
|
|
{{range $c := $.Crashes}}
|
|
<tr>
|
|
<td><a href="/crash?id={{$c.ID}}">{{$c.Description}}</a></td>
|
|
<td>{{$c.Count}}</td>
|
|
<td>{{$c.LastTime}}</td>
|
|
<td>
|
|
{{if $c.Triaged}}
|
|
<a href="/report?id={{$c.ID}}">{{$c.Triaged}}</a>
|
|
{{end}}
|
|
</td>
|
|
</tr>
|
|
{{end}}
|
|
</table>
|
|
<br>
|
|
|
|
<b>Log:</b>
|
|
<br>
|
|
<textarea id="log_textarea" readonly rows="50">
|
|
{{.Log}}
|
|
</textarea>
|
|
<script>
|
|
var textarea = document.getElementById("log_textarea");
|
|
textarea.scrollTop = textarea.scrollHeight;
|
|
</script>
|
|
<br>
|
|
<br>
|
|
|
|
<b>Per-call coverage:</b>
|
|
<br>
|
|
{{range $c := $.Calls}}
|
|
{{$c.Name}}
|
|
<a href='/corpus?call={{$c.Name}}'>inputs:{{$c.Inputs}}</a>
|
|
<a href='/cover?call={{$c.Name}}'>cover:{{$c.Cover}}</a>
|
|
<a href='/cover?call={{$c.Name}}&unique=1'>unique:{{$c.UniqueCover}}</a>
|
|
<a href='/prio?call={{$c.Name}}'>prio</a> <br>
|
|
{{end}}
|
|
</body></html>
|
|
`)))
|
|
|
|
var crashTemplate = template.Must(template.New("").Parse(addStyle(`
|
|
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<title>{{.Description}}</title>
|
|
{{STYLE}}
|
|
</head>
|
|
<body>
|
|
<b>{{.Description}}</b>
|
|
<br><br>
|
|
|
|
{{if .Triaged}}
|
|
Report: <a href="/report?id={{.ID}}">{{.Triaged}}</a>
|
|
{{end}}
|
|
<br><br>
|
|
|
|
<table>
|
|
<tr>
|
|
<th>#</th>
|
|
<th>Log</th>
|
|
<th>Report</th>
|
|
<th>Time</th>
|
|
<th>Tag</th>
|
|
</tr>
|
|
{{range $c := $.Crashes}}
|
|
<tr>
|
|
<td>{{$c.Index}}</td>
|
|
<td><a href="/file?name={{$c.Log}}">log</a></td>
|
|
{{if $c.Report}}
|
|
<td><a href="/file?name={{$c.Report}}">report</a></td>
|
|
{{else}}
|
|
<td></td>
|
|
{{end}}
|
|
<td>{{$c.Time}}</td>
|
|
<td>{{$c.Tag}}</td>
|
|
</tr>
|
|
{{end}}
|
|
</table>
|
|
</body></html>
|
|
`)))
|
|
|
|
var corpusTemplate = template.Must(template.New("").Parse(addStyle(`
|
|
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<title>syzkaller corpus</title>
|
|
{{STYLE}}
|
|
</head>
|
|
<body>
|
|
{{range $c := $}}
|
|
<span title="{{$c.Full}}">{{$c.Short}}</span>
|
|
<a href='/cover?call={{$c.N}}'>cover:{{$c.Cover}}</a>
|
|
<a href='/cover?call={{$c.N}}&unique=1'>unique:{{$c.UniqueCover}}</a>
|
|
<br>
|
|
{{end}}
|
|
</body></html>
|
|
`)))
|
|
|
|
type UIPrioData struct {
|
|
Call string
|
|
Prios []UIPrio
|
|
}
|
|
|
|
type UIPrio struct {
|
|
Call string
|
|
Prio float32
|
|
}
|
|
|
|
type UIPrioArray []UIPrio
|
|
|
|
func (a UIPrioArray) Len() int { return len(a) }
|
|
func (a UIPrioArray) Less(i, j int) bool { return a[i].Prio > a[j].Prio }
|
|
func (a UIPrioArray) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
|
|
|
|
var prioTemplate = template.Must(template.New("").Parse(addStyle(`
|
|
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<title>syzkaller priorities</title>
|
|
{{STYLE}}
|
|
</head>
|
|
<body>
|
|
Priorities for {{$.Call}} <br> <br>
|
|
{{range $p := $.Prios}}
|
|
{{printf "%.4f\t%s" $p.Prio $p.Call}} <br>
|
|
{{end}}
|
|
</body></html>
|
|
`)))
|
|
|
|
func addStyle(html string) string {
|
|
return strings.Replace(html, "{{STYLE}}", htmlStyle, -1)
|
|
}
|
|
|
|
const htmlStyle = `
|
|
<style type="text/css" media="screen">
|
|
table {
|
|
border-collapse:collapse;
|
|
border:1px solid;
|
|
}
|
|
table caption {
|
|
font-weight: bold;
|
|
}
|
|
table td {
|
|
border:1px solid;
|
|
padding: 3px;
|
|
}
|
|
table th {
|
|
border:1px solid;
|
|
padding: 3px;
|
|
}
|
|
textarea {
|
|
width:100%;
|
|
}
|
|
</style>
|
|
`
|