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85 lines
3.7 KiB
Go
85 lines
3.7 KiB
Go
// mautrix-signal - A Matrix-signal puppeting bridge.
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// Copyright (C) 2023 Scott Weber
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// Copyright (C) 2025 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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extern int signal_load_kyber_pre_key_callback(void *store_ctx, SignalMutPointerKyberPreKeyRecord *recordp, uint32_t id);
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extern int signal_store_kyber_pre_key_callback(void *store_ctx, uint32_t id, SignalMutPointerKyberPreKeyRecord record);
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extern int signal_mark_kyber_pre_key_used_callback(void *store_ctx, uint32_t id, uint32_t ec_prekey_id, SignalMutPointerPublicKey base_key);
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extern void signal_destroy_kyber_pre_key_store_callback(void *store_ctx);
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*/
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import "C"
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import (
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"context"
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"unsafe"
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)
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type KyberPreKeyStore interface {
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LoadKyberPreKey(ctx context.Context, id uint32) (*KyberPreKeyRecord, error)
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StoreKyberPreKey(ctx context.Context, id uint32, kyberPreKeyRecord *KyberPreKeyRecord) error
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MarkKyberPreKeyUsed(ctx context.Context, id uint32) error
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}
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//export signal_load_kyber_pre_key_callback
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func signal_load_kyber_pre_key_callback(storeCtx unsafe.Pointer, keyp *C.SignalMutPointerKyberPreKeyRecord, id C.uint32_t) C.int {
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return wrapStoreCallback(storeCtx, func(store KyberPreKeyStore, ctx context.Context) error {
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key, err := store.LoadKyberPreKey(ctx, uint32(id))
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if err == nil && key != nil {
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key.CancelFinalizer()
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keyp.raw = key.ptr
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}
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return err
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})
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}
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//export signal_store_kyber_pre_key_callback
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func signal_store_kyber_pre_key_callback(storeCtx unsafe.Pointer, id C.uint32_t, preKeyRecord C.SignalMutPointerKyberPreKeyRecord) C.int {
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return wrapStoreCallback(storeCtx, func(store KyberPreKeyStore, ctx context.Context) error {
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record := KyberPreKeyRecord{ptr: preKeyRecord.raw}
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cloned, err := record.Clone()
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if err != nil {
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return err
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}
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return store.StoreKyberPreKey(ctx, uint32(id), cloned)
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})
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}
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//export signal_mark_kyber_pre_key_used_callback
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func signal_mark_kyber_pre_key_used_callback(storeCtx unsafe.Pointer, id C.uint32_t, ecPrekeyID C.uint32_t, baseKey C.SignalMutPointerPublicKey) C.int {
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return wrapStoreCallback(storeCtx, func(store KyberPreKeyStore, ctx context.Context) error {
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// TODO use ecPrekeyID and baseKey?
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return store.MarkKyberPreKeyUsed(ctx, uint32(id))
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})
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}
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//export signal_destroy_kyber_pre_key_store_callback
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func signal_destroy_kyber_pre_key_store_callback(storeCtx unsafe.Pointer) {
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// No-op: Go's garbage collector handles cleanup
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}
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func (ctx *CallbackContext) wrapKyberPreKeyStore(store KyberPreKeyStore) C.SignalConstPointerFfiKyberPreKeyStoreStruct {
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return C.SignalConstPointerFfiKyberPreKeyStoreStruct{&C.SignalKyberPreKeyStore{
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ctx: wrapStore(ctx, store),
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load_kyber_pre_key: C.SignalFfiBridgeKyberPreKeyStoreLoadKyberPreKey(C.signal_load_kyber_pre_key_callback),
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store_kyber_pre_key: C.SignalFfiBridgeKyberPreKeyStoreStoreKyberPreKey(C.signal_store_kyber_pre_key_callback),
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mark_kyber_pre_key_used: C.SignalFfiBridgeKyberPreKeyStoreMarkKyberPreKeyUsed(C.signal_mark_kyber_pre_key_used_callback),
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destroy: C.SignalFfiBridgeKyberPreKeyStoreDestroy(C.signal_destroy_kyber_pre_key_store_callback),
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}}
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}
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