Module codes 

All canonical error codes.

Allocation:

• 0x0000–0x0FFF — GBP base layer
• 0x1000–0x1FFF — GAP
• 0x2000–0x2FFF — GTP
• 0x3000–0x3FFF — GSP
• 0xF000–0xFFFF — private extensions

Constants

COMMIT_INVALID

MLS commit was rejected.

COORDINATOR_GONE

Coordinator transport lost; handover required.

DECRYPT_FAILED

AEAD authentication failed.

DIGEST_MISMATCH

member_set_root_hash mismatch on Resync.

EPOCH_MISMATCH

Frame epoch does not match the receiver’s current epoch.

EXECUTE_TIMEOUT

Member timed out waiting for EXECUTE_TRANSITION after READY.

GAP_AUTH_FAILED

AEAD authentication failed at the GAP layer.

GAP_BAD_SOURCE_ID

Unknown audio source.

GAP_DECODE_FAILED

Opus decoder error.

GAP_EPOCH_STALE

key_phase points at a stale epoch.

GAP_KEY_PHASE_UNKNOWN

key_phase refers to an unknown epoch.

GAP_REPLAY_DETECTED

rtp_sequence already seen for this source.

GSP_BAD_SCHEMA

Invalid args schema for the given signal_type.

GSP_DUPLICATE_REQUEST

Duplicate request_id.

GSP_PRECONDITION_FAILED

Signal precondition not met.

GSP_STATE_CONFLICT

Signal contradicts the current state.

GSP_UNAUTHORIZED

Sender is not authorised to issue this signal.

GSP_UNKNOWN_SIGNAL

signal_type is not in the registry.

GTP_ATTACHMENT_INTEGRITY

Attachment integrity check failed.

GTP_BAD_LENGTH

content_length does not match the body length.

GTP_DUPLICATE_MESSAGE

Duplicate (sender_id, message_id).

GTP_POLICY_REJECTED

Message rejected by the policy layer (retention / quota / …).

GTP_REQUEST_TIMEOUT

Request timed out.

GTP_UNSUPPORTED_CONTENT_TYPE

content_type is not supported by the profile.

PREPARE_TIMEOUT

Coordinator timed out waiting for READY quorum.

READY_TIMEOUT

Member timed out before completing local commit processing.

REPLAY_DETECTED

Sequence number was already used — replay detected.

STREAM_POLICY_VIOLATION

Stream class used outside its allowed policy.

TRANSITION_IN_PROGRESS

A second commit arrived while a pending transition is in progress.

TRANSITION_MISMATCH

Frame transition_id does not match the current transition.

UNKNOWN_GROUP

Unknown group_id.

UNSUPPORTED_VERSION

Unsupported protocol version.