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- package vmess
- import (
- "bytes"
- "crypto/md5"
- "github.com/gofrs/uuid/v5"
- )
- // ID cmdKey length
- const (
- IDBytesLen = 16
- )
- // The ID of en entity, in the form of a UUID.
- type ID struct {
- UUID *uuid.UUID
- CmdKey []byte
- }
- // newID returns an ID with given UUID.
- func newID(uuid *uuid.UUID) *ID {
- id := &ID{UUID: uuid, CmdKey: make([]byte, IDBytesLen)}
- md5hash := md5.New()
- md5hash.Write(uuid.Bytes())
- md5hash.Write([]byte("c48619fe-8f02-49e0-b9e9-edf763e17e21"))
- md5hash.Sum(id.CmdKey[:0])
- return id
- }
- func nextID(u *uuid.UUID) *uuid.UUID {
- md5hash := md5.New()
- md5hash.Write(u.Bytes())
- md5hash.Write([]byte("16167dc8-16b6-4e6d-b8bb-65dd68113a81"))
- var newid uuid.UUID
- for {
- md5hash.Sum(newid[:0])
- if !bytes.Equal(newid.Bytes(), u.Bytes()) {
- return &newid
- }
- md5hash.Write([]byte("533eff8a-4113-4b10-b5ce-0f5d76b98cd2"))
- }
- }
- func newAlterIDs(primary *ID, alterIDCount uint16) []*ID {
- alterIDs := make([]*ID, alterIDCount)
- prevID := primary.UUID
- for idx := range alterIDs {
- newid := nextID(prevID)
- alterIDs[idx] = &ID{UUID: newid, CmdKey: primary.CmdKey[:]}
- prevID = newid
- }
- alterIDs = append(alterIDs, primary)
- return alterIDs
- }
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