| 423 | ) |
| 424 | |
| 425 | func (f *Frontend) findAuthenticationMessageType(src []byte) (BackendMessage, error) { |
| 426 | if len(src) < 4 { |
| 427 | return nil, errors.New("authentication message too short") |
| 428 | } |
| 429 | f.authType = binary.BigEndian.Uint32(src[:4]) |
| 430 | |
| 431 | switch f.authType { |
| 432 | case AuthTypeOk: |
| 433 | return &f.authenticationOk, nil |
| 434 | case AuthTypeCleartextPassword: |
| 435 | return &f.authenticationCleartextPassword, nil |
| 436 | case AuthTypeMD5Password: |
| 437 | return &f.authenticationMD5Password, nil |
| 438 | case AuthTypeSCMCreds: |
| 439 | return nil, errors.New("AuthTypeSCMCreds is unimplemented") |
| 440 | case AuthTypeGSS: |
| 441 | return &f.authenticationGSS, nil |
| 442 | case AuthTypeGSSCont: |
| 443 | return &f.authenticationGSSContinue, nil |
| 444 | case AuthTypeSSPI: |
| 445 | return nil, errors.New("AuthTypeSSPI is unimplemented") |
| 446 | case AuthTypeSASL: |
| 447 | return &f.authenticationSASL, nil |
| 448 | case AuthTypeSASLContinue: |
| 449 | return &f.authenticationSASLContinue, nil |
| 450 | case AuthTypeSASLFinal: |
| 451 | return &f.authenticationSASLFinal, nil |
| 452 | default: |
| 453 | return nil, fmt.Errorf("unknown authentication type: %d", f.authType) |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | // GetAuthType returns the authType used in the current state of the frontend. |
| 458 | // See SetAuthType for more information. |