mirror of
https://github.com/mautrix/signal.git
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113 lines
3.4 KiB
Go
113 lines
3.4 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2024 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package libsignalgo
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/*
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#include "./libsignal-ffi.h"
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*/
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import "C"
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import (
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"runtime"
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"time"
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)
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type SGXClientState struct {
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nc noCopy
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ptr *C.SignalSgxClientState
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}
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func wrapSGXClientState(ptr *C.SignalSgxClientState) *SGXClientState {
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cdsClientState := &SGXClientState{ptr: ptr}
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runtime.SetFinalizer(cdsClientState, (*SGXClientState).Destroy)
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return cdsClientState
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}
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func NewCDS2ClientState(mrenclave, attestationMessage []byte, currentTime time.Time) (*SGXClientState, error) {
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var cds C.SignalMutPointerSgxClientState
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signalFfiError := C.signal_cds2_client_state_new(
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&cds,
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BytesToBuffer(mrenclave),
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BytesToBuffer(attestationMessage),
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C.uint64_t(currentTime.UnixMilli()),
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)
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runtime.KeepAlive(mrenclave)
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runtime.KeepAlive(attestationMessage)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return wrapSGXClientState(cds.raw), nil
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}
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func (cds *SGXClientState) mutPtr() C.SignalMutPointerSgxClientState {
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return C.SignalMutPointerSgxClientState{cds.ptr}
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}
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func (cds *SGXClientState) constPtr() C.SignalConstPointerSgxClientState {
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return C.SignalConstPointerSgxClientState{cds.ptr}
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}
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func (cds *SGXClientState) Destroy() error {
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runtime.SetFinalizer(cds, nil)
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return wrapError(C.signal_sgx_client_state_destroy(cds.mutPtr()))
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}
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func (cds *SGXClientState) InitialRequest() ([]byte, error) {
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var resp C.SignalOwnedBuffer
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signalFfiError := C.signal_sgx_client_state_initial_request(&resp, cds.constPtr())
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runtime.KeepAlive(cds)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return CopySignalOwnedBufferToBytes(resp), nil
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}
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func (cds *SGXClientState) CompleteHandshake(handshakeReceived []byte) error {
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signalFfiError := C.signal_sgx_client_state_complete_handshake(cds.mutPtr(), BytesToBuffer(handshakeReceived))
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runtime.KeepAlive(cds)
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runtime.KeepAlive(handshakeReceived)
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return wrapError(signalFfiError)
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}
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func (cds *SGXClientState) EstablishedSend(plaintext []byte) ([]byte, error) {
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var resp C.SignalOwnedBuffer
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signalFfiError := C.signal_sgx_client_state_established_send(
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&resp,
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cds.mutPtr(),
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BytesToBuffer(plaintext),
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)
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runtime.KeepAlive(cds)
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runtime.KeepAlive(plaintext)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return CopySignalOwnedBufferToBytes(resp), nil
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}
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func (cds *SGXClientState) EstablishedReceive(ciphertext []byte) ([]byte, error) {
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var resp C.SignalOwnedBuffer
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signalFfiError := C.signal_sgx_client_state_established_recv(
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&resp,
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cds.mutPtr(),
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BytesToBuffer(ciphertext),
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)
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runtime.KeepAlive(cds)
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runtime.KeepAlive(ciphertext)
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if signalFfiError != nil {
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return nil, wrapError(signalFfiError)
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}
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return CopySignalOwnedBufferToBytes(resp), nil
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}
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