syncthing/cmd/stindex/dump.go
André Colomb 668979605b
cmd/stindex: Add missing KeyType values in stindex dump code (#6659)
* cmd/stindex: Unify access to key from cached variable.

Avoid calling the Key() method from the iterator each time the value
is needed.  Just reuse the cache variable already assigned before the
switch block.

* cmd/stindex: Display the prefix byte value for unknown key types.

Make it easier to diagnose corrupt / unknown key type entries by
showing their decimal value, correlating with the definitions in
keyer.go.

* cmd/stindex: Add missing KeyType values in stindex dump code.

Recently added DB key prefixes KeyTypeBlockListMap and KeyTypeVersion
were unknown to the stindex dumping tool.  Add basic parsing to dump
their key structure.
2020-05-17 11:06:14 +02:00

122 lines
3.4 KiB
Go

// Copyright (C) 2015 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package main
import (
"encoding/binary"
"fmt"
"log"
"time"
"github.com/syncthing/syncthing/lib/db"
"github.com/syncthing/syncthing/lib/db/backend"
"github.com/syncthing/syncthing/lib/protocol"
)
func dump(ldb backend.Backend) {
it, err := ldb.NewPrefixIterator(nil)
if err != nil {
log.Fatal(err)
}
for it.Next() {
key := it.Key()
switch key[0] {
case db.KeyTypeDevice:
folder := binary.BigEndian.Uint32(key[1:])
device := binary.BigEndian.Uint32(key[1+4:])
name := nulString(key[1+4+4:])
fmt.Printf("[device] F:%d D:%d N:%q", folder, device, name)
var f protocol.FileInfo
err := f.Unmarshal(it.Value())
if err != nil {
log.Fatal(err)
}
fmt.Printf(" V:%v\n", f)
case db.KeyTypeGlobal:
folder := binary.BigEndian.Uint32(key[1:])
name := nulString(key[1+4:])
var flv db.VersionList
flv.Unmarshal(it.Value())
fmt.Printf("[global] F:%d N:%q V:%s\n", folder, name, flv)
case db.KeyTypeBlock:
folder := binary.BigEndian.Uint32(key[1:])
hash := key[1+4 : 1+4+32]
name := nulString(key[1+4+32:])
fmt.Printf("[block] F:%d H:%x N:%q I:%d\n", folder, hash, name, binary.BigEndian.Uint32(it.Value()))
case db.KeyTypeDeviceStatistic:
fmt.Printf("[dstat] K:%x V:%x\n", key, it.Value())
case db.KeyTypeFolderStatistic:
fmt.Printf("[fstat] K:%x V:%x\n", key, it.Value())
case db.KeyTypeVirtualMtime:
folder := binary.BigEndian.Uint32(key[1:])
name := nulString(key[1+4:])
val := it.Value()
var real, virt time.Time
real.UnmarshalBinary(val[:len(val)/2])
virt.UnmarshalBinary(val[len(val)/2:])
fmt.Printf("[mtime] F:%d N:%q R:%v V:%v\n", folder, name, real, virt)
case db.KeyTypeFolderIdx:
key := binary.BigEndian.Uint32(key[1:])
fmt.Printf("[folderidx] K:%d V:%q\n", key, it.Value())
case db.KeyTypeDeviceIdx:
key := binary.BigEndian.Uint32(key[1:])
val := it.Value()
if len(val) == 0 {
fmt.Printf("[deviceidx] K:%d V:<nil>\n", key)
} else {
dev := protocol.DeviceIDFromBytes(val)
fmt.Printf("[deviceidx] K:%d V:%s\n", key, dev)
}
case db.KeyTypeIndexID:
device := binary.BigEndian.Uint32(key[1:])
folder := binary.BigEndian.Uint32(key[5:])
fmt.Printf("[indexid] D:%d F:%d I:%x\n", device, folder, it.Value())
case db.KeyTypeFolderMeta:
folder := binary.BigEndian.Uint32(key[1:])
fmt.Printf("[foldermeta] F:%d V:%x\n", folder, it.Value())
case db.KeyTypeMiscData:
fmt.Printf("[miscdata] K:%q V:%q\n", key[1:], it.Value())
case db.KeyTypeSequence:
folder := binary.BigEndian.Uint32(key[1:])
seq := binary.BigEndian.Uint64(key[5:])
fmt.Printf("[sequence] F:%d S:%d V:%q\n", folder, seq, it.Value())
case db.KeyTypeNeed:
folder := binary.BigEndian.Uint32(key[1:])
file := string(key[5:])
fmt.Printf("[need] F:%d V:%q\n", folder, file)
case db.KeyTypeBlockList:
fmt.Printf("[blocklist] H:%x\n", key[1:])
case db.KeyTypeBlockListMap:
folder := binary.BigEndian.Uint32(key[1:])
hash := key[5:37]
fileName := string(key[37:])
fmt.Printf("[blocklistmap] F:%d H:%x N:%s\n", folder, hash, fileName)
case db.KeyTypeVersion:
fmt.Printf("[version] H:%x\n", key[1:])
default:
fmt.Printf("[??? %d]\n %x\n %x\n", key[0], key, it.Value())
}
}
}