1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <dlfcn.h>
17 #include <openssl/crypto.h>
18 #include "avsession_trace.h"
19 #include "remote_session_sink_proxy.h"
20
21 namespace OHOS::AVSession {
RemoteSessionSinkProxy()22 RemoteSessionSinkProxy::RemoteSessionSinkProxy()
23 {
24 LoadSinkImplement();
25 }
26
~RemoteSessionSinkProxy()27 RemoteSessionSinkProxy::~RemoteSessionSinkProxy()
28 {
29 UnLoadSinkImplement();
30 }
31
LoadSinkImplement()32 int32_t RemoteSessionSinkProxy::LoadSinkImplement() __attribute__((no_sanitize("cfi")))
33 {
34 handle_ = dlopen("libremote_session_sink.z.so", RTLD_NOW);
35 if (handle_ == nullptr) {
36 SLOGE("Failed to open extension library %{public}s, reason: %{public}sn",
37 "libremote_session_sink.z.so", dlerror());
38 return AVSESSION_ERROR;
39 }
40 using SinkImpl = RemoteSessionSinkImpl* (*)();
41
42 auto createRemoteSessionSinkImpl = (SinkImpl)(dlsym(handle_, "CreateRemoteSessionSinkImpl"));
43 if (createRemoteSessionSinkImpl == nullptr) {
44 if (handle_ != nullptr) {
45 #ifndef TEST_COVERAGE
46 if (handle_ != nullptr) {
47 OPENSSL_thread_stop();
48 }
49 dlclose(handle_);
50 #endif
51 }
52 SLOGE("Failed to get extension symbol %{public}s in %{public}s",
53 "RemoteSessionSinkImpl", "libremote_session_sink.z.so");
54 return AVSESSION_ERROR;
55 }
56
57 sinkImpl_ = createRemoteSessionSinkImpl();
58 return AVSESSION_SUCCESS;
59 }
60
UnLoadSinkImplement()61 int32_t RemoteSessionSinkProxy::UnLoadSinkImplement() __attribute__((no_sanitize("cfi")))
62 {
63 using SinkImpl = void(*)(RemoteSessionSinkImpl*);
64 auto destroyRemoteSessionSinkImpl = (SinkImpl)(dlsym(handle_, "DestroyRemoteSessionSinkImpl"));
65 if (destroyRemoteSessionSinkImpl == nullptr) {
66 if (handle_ != nullptr) {
67 #ifndef TEST_COVERAGE
68 if (handle_ != nullptr) {
69 OPENSSL_thread_stop();
70 }
71 dlclose(handle_);
72 #endif
73 }
74 SLOGE("Failed to get extension symbol %{public}s in %{public}s", "DestroyRemoteSessionSinkImpl",
75 "libremote_session_sink.z.so");
76 return AVSESSION_ERROR;
77 }
78 destroyRemoteSessionSinkImpl(sinkImpl_);
79
80 if (handle_ != nullptr) {
81 #ifndef TEST_COVERAGE
82 if (handle_ != nullptr) {
83 OPENSSL_thread_stop();
84 }
85 dlclose(handle_);
86 #endif
87 }
88 return AVSESSION_SUCCESS;
89 }
90
CastSessionFromRemote(const sptr <AVSessionItem>& session, const std::string& sourceSessionId, const std::string& sourceDevice, const std::string& sinkDevice, const std::string& sourceCap)91 int32_t RemoteSessionSinkProxy::CastSessionFromRemote(const sptr <AVSessionItem>& session,
92 const std::string& sourceSessionId,
93 const std::string& sourceDevice,
94 const std::string& sinkDevice,
95 const std::string& sourceCap)
96 {
97 CHECK_AND_RETURN_RET_LOG(sinkImpl_ != nullptr, AVSESSION_ERROR, "sinkImpl_ is nullptr");
98 int32_t ret = sinkImpl_->CastSessionFromRemote(session, sourceSessionId, sourceDevice, sinkDevice, sourceCap);
99 CHECK_AND_RETURN_RET_LOG(ret == AVSESSION_SUCCESS, ret, "source CastSessionFromRemote error");
100 return AVSESSION_SUCCESS;
101 }
102
CancelCastSession()103 int32_t RemoteSessionSinkProxy::CancelCastSession()
104 {
105 CHECK_AND_RETURN_RET_LOG(sinkImpl_ != nullptr, AVSESSION_ERROR, "sinkImpl_ is nullptr");
106 int32_t ret = sinkImpl_->CancelCastSession();
107 CHECK_AND_RETURN_RET_LOG(ret == AVSESSION_SUCCESS, ret, "source CancelCastSession error");
108 return AVSESSION_SUCCESS;
109 }
110
SetControlCommand(const AVControlCommand& command)111 int32_t RemoteSessionSinkProxy::SetControlCommand(const AVControlCommand& command)
112 {
113 AVSESSION_TRACE_SYNC_START("RemoteSessionSinkProxy::SetControlCommand");
114 CHECK_AND_RETURN_RET_LOG(sinkImpl_ != nullptr, AVSESSION_ERROR, "sinkImpl_ is nullptr");
115 int32_t ret = sinkImpl_->SetControlCommand(command);
116 CHECK_AND_RETURN_RET_LOG(ret == AVSESSION_SUCCESS, ret, "source SetControlCommand error");
117 return AVSESSION_SUCCESS;
118 }
119
SetCommonCommand(const std::string& commonCommand, const AAFwk::WantParams& commandArgs)120 int32_t RemoteSessionSinkProxy::SetCommonCommand(const std::string& commonCommand,
121 const AAFwk::WantParams& commandArgs)
122 {
123 AVSESSION_TRACE_SYNC_START("RemoteSessionSinkProxy::SetCommonCommand");
124 CHECK_AND_RETURN_RET_LOG(sinkImpl_ != nullptr, AVSESSION_ERROR, "sinkImpl_ is nullptr");
125 int32_t ret = sinkImpl_->SetCommonCommand(commonCommand, commandArgs);
126 CHECK_AND_RETURN_RET_LOG(ret == AVSESSION_SUCCESS, ret, "Source SetCommonCommand error");
127 return AVSESSION_SUCCESS;
128 }
129 } // namespace OHOS::AVSession
130