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-rw-r--r--media/libstagefright/wifi-display/source/WifiDisplaySource.cpp236
-rw-r--r--media/libstagefright/wifi-display/source/WifiDisplaySource.h14
2 files changed, 124 insertions, 126 deletions
diff --git a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
index 7e27a4c..8fead96 100644
--- a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
+++ b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
@@ -41,6 +41,7 @@ WifiDisplaySource::WifiDisplaySource(
: mNetSession(netSession),
mClient(client),
mSessionID(0),
+ mClientSessionID(0),
mReaperPending(false),
mNextCSeq(1) {
}
@@ -156,7 +157,11 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
mNetSession->destroySession(sessionID);
- mClientInfos.removeItem(sessionID);
+ if (sessionID == mClientSessionID) {
+ mClientSessionID = -1;
+
+ disconnectClient(UNKNOWN_ERROR);
+ }
break;
}
@@ -165,15 +170,31 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
int32_t sessionID;
CHECK(msg->findInt32("sessionID", &sessionID));
- ClientInfo info;
- CHECK(msg->findString("client-ip", &info.mRemoteIP));
- CHECK(msg->findString("server-ip", &info.mLocalIP));
- CHECK(msg->findInt32("server-port", &info.mLocalPort));
- info.mPlaybackSessionID = -1;
+ if (mClientSessionID > 0) {
+ ALOGW("A client tried to connect, but we already "
+ "have one.");
- ALOGI("We now have a client (%d) connected.", sessionID);
+ mNetSession->destroySession(sessionID);
+ break;
+ }
+
+ CHECK(msg->findString("client-ip", &mClientInfo.mRemoteIP));
+ CHECK(msg->findString("server-ip", &mClientInfo.mLocalIP));
+
+ if (mClientInfo.mRemoteIP == mClientInfo.mLocalIP) {
+ // Disallow connections from the local interface
+ // for security reasons.
+ mNetSession->destroySession(sessionID);
+ break;
+ }
- mClientInfos.add(sessionID, info);
+ CHECK(msg->findInt32(
+ "server-port", &mClientInfo.mLocalPort));
+ mClientInfo.mPlaybackSessionID = -1;
+
+ mClientSessionID = sessionID;
+
+ ALOGI("We now have a client (%d) connected.", sessionID);
status_t err = sendM1(sessionID);
CHECK_EQ(err, (status_t)OK);
@@ -197,20 +218,7 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
uint32_t replyID;
CHECK(msg->senderAwaitsResponse(&replyID));
- for (size_t i = mPlaybackSessions.size(); i-- > 0;) {
- sp<PlaybackSession> playbackSession =
- mPlaybackSessions.valueAt(i);
-
- mPlaybackSessions.removeItemsAt(i);
-
- playbackSession->destroy();
- looper()->unregisterHandler(playbackSession->id());
- playbackSession.clear();
- }
-
- if (mClient != NULL) {
- mClient->onDisplayDisconnected();
- }
+ disconnectClient(OK);
status_t err = OK;
@@ -224,21 +232,17 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
{
mReaperPending = false;
- for (size_t i = mPlaybackSessions.size(); i-- > 0;) {
- const sp<PlaybackSession> &playbackSession =
- mPlaybackSessions.valueAt(i);
-
- if (playbackSession->getLastLifesignUs()
- + kPlaybackSessionTimeoutUs < ALooper::GetNowUs()) {
- ALOGI("playback session %d timed out, reaping.",
- mPlaybackSessions.keyAt(i));
-
- looper()->unregisterHandler(playbackSession->id());
- mPlaybackSessions.removeItemsAt(i);
- }
+ if (mClientSessionID == 0
+ || mClientInfo.mPlaybackSession == NULL) {
+ break;
}
- if (!mPlaybackSessions.isEmpty()) {
+ if (mClientInfo.mPlaybackSession->getLastLifesignUs()
+ + kPlaybackSessionTimeoutUs < ALooper::GetNowUs()) {
+ ALOGI("playback session timed out, reaping.");
+
+ disconnectClient(-ETIMEDOUT);
+ } else {
scheduleReaper();
}
break;
@@ -252,52 +256,44 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
int32_t what;
CHECK(msg->findInt32("what", &what));
- ssize_t index = mPlaybackSessions.indexOfKey(playbackSessionID);
- if (index >= 0) {
- const sp<PlaybackSession> &playbackSession =
- mPlaybackSessions.valueAt(index);
-
- if (what == PlaybackSession::kWhatSessionDead) {
- ALOGI("playback sessions %d wants to quit.",
- playbackSessionID);
-
- looper()->unregisterHandler(playbackSession->id());
- mPlaybackSessions.removeItemsAt(index);
- } else if (what == PlaybackSession::kWhatSessionEstablished) {
- if (mClient != NULL) {
- mClient->onDisplayConnected(
- playbackSession->getSurfaceTexture(),
- playbackSession->width(),
- playbackSession->height(),
- 0 /* flags */);
- }
- } else {
- CHECK_EQ(what, PlaybackSession::kWhatBinaryData);
+ if (what == PlaybackSession::kWhatSessionDead) {
+ ALOGI("playback session wants to quit.");
+
+ disconnectClient(UNKNOWN_ERROR);
+ } else if (what == PlaybackSession::kWhatSessionEstablished) {
+ if (mClient != NULL) {
+ mClient->onDisplayConnected(
+ mClientInfo.mPlaybackSession->getSurfaceTexture(),
+ mClientInfo.mPlaybackSession->width(),
+ mClientInfo.mPlaybackSession->height(),
+ 0 /* flags */);
+ }
+ } else {
+ CHECK_EQ(what, PlaybackSession::kWhatBinaryData);
- int32_t channel;
- CHECK(msg->findInt32("channel", &channel));
+ int32_t channel;
+ CHECK(msg->findInt32("channel", &channel));
- sp<ABuffer> data;
- CHECK(msg->findBuffer("data", &data));
+ sp<ABuffer> data;
+ CHECK(msg->findBuffer("data", &data));
- CHECK_LE(channel, 0xffu);
- CHECK_LE(data->size(), 0xffffu);
+ CHECK_LE(channel, 0xffu);
+ CHECK_LE(data->size(), 0xffffu);
- int32_t sessionID;
- CHECK(msg->findInt32("sessionID", &sessionID));
+ int32_t sessionID;
+ CHECK(msg->findInt32("sessionID", &sessionID));
- char header[4];
- header[0] = '$';
- header[1] = channel;
- header[2] = data->size() >> 8;
- header[3] = data->size() & 0xff;
+ char header[4];
+ header[0] = '$';
+ header[1] = channel;
+ header[2] = data->size() >> 8;
+ header[3] = data->size() & 0xff;
- mNetSession->sendRequest(
- sessionID, header, sizeof(header));
+ mNetSession->sendRequest(
+ sessionID, header, sizeof(header));
- mNetSession->sendRequest(
- sessionID, data->data(), data->size());
- }
+ mNetSession->sendRequest(
+ sessionID, data->data(), data->size());
}
break;
}
@@ -307,7 +303,7 @@ void WifiDisplaySource::onMessageReceived(const sp<AMessage> &msg) {
int32_t sessionID;
CHECK(msg->findInt32("sessionID", &sessionID));
- if (mClientInfos.indexOfKey(sessionID) < 0) {
+ if (mClientSessionID != sessionID) {
// Obsolete event, client is already gone.
break;
}
@@ -398,7 +394,7 @@ status_t WifiDisplaySource::sendM4(int32_t sessionID) {
// max-hres (none or 2 byte)
// max-vres (none or 2 byte)
- const ClientInfo &info = mClientInfos.valueFor(sessionID);
+ CHECK_EQ(sessionID, mClientSessionID);
AString transportString = "UDP";
@@ -415,7 +411,8 @@ status_t WifiDisplaySource::sendM4(int32_t sessionID) {
"wfd_audio_codecs: AAC 00000001 00\r\n" // 2 ch AAC 48kHz
"wfd_presentation_URL: rtsp://%s:%d/wfd1.0/streamid=0 none\r\n"
"wfd_client_rtp_ports: RTP/AVP/%s;unicast 19000 0 mode=play\r\n",
- info.mLocalIP.c_str(), info.mLocalPort, transportString.c_str());
+ mClientInfo.mLocalIP.c_str(), mClientInfo.mLocalPort,
+ transportString.c_str());
AString request = "SET_PARAMETER rtsp://localhost/wfd1.0 RTSP/1.0\r\n";
AppendCommonResponse(&request, mNextCSeq);
@@ -470,8 +467,9 @@ status_t WifiDisplaySource::sendM16(int32_t sessionID) {
AString request = "GET_PARAMETER rtsp://localhost/wfd1.0 RTSP/1.0\r\n";
AppendCommonResponse(&request, mNextCSeq);
- const ClientInfo &info = mClientInfos.valueFor(sessionID);
- request.append(StringPrintf("Session: %d\r\n", info.mPlaybackSessionID));
+ CHECK_EQ(sessionID, mClientSessionID);
+ request.append(
+ StringPrintf("Session: %d\r\n", mClientInfo.mPlaybackSessionID));
request.append("\r\n"); // Empty body
status_t err =
@@ -549,11 +547,10 @@ status_t WifiDisplaySource::onReceiveM16Response(
int32_t sessionID, const sp<ParsedMessage> &msg) {
// If only the response was required to include a "Session:" header...
- const ClientInfo &info = mClientInfos.valueFor(sessionID);
+ CHECK_EQ(sessionID, mClientSessionID);
- ssize_t index = mPlaybackSessions.indexOfKey(info.mPlaybackSessionID);
- if (index >= 0) {
- mPlaybackSessions.valueAt(index)->updateLiveness();
+ if (mClientInfo.mPlaybackSession != NULL) {
+ mClientInfo.mPlaybackSession->updateLiveness();
scheduleKeepAlive(sessionID);
}
@@ -727,8 +724,8 @@ void WifiDisplaySource::onSetupRequest(
int32_t sessionID,
int32_t cseq,
const sp<ParsedMessage> &data) {
- ClientInfo *info = &mClientInfos.editValueFor(sessionID);
- if (info->mPlaybackSessionID != -1) {
+ CHECK_EQ(sessionID, mClientSessionID);
+ if (mClientInfo.mPlaybackSessionID != -1) {
// We only support a single playback session per client.
// This is due to the reversed keep-alive design in the wfd specs...
sendErrorResponse(sessionID, "400 Bad Request", cseq);
@@ -834,7 +831,7 @@ void WifiDisplaySource::onSetupRequest(
}
status_t err = playbackSession->init(
- info->mRemoteIP.c_str(),
+ mClientInfo.mRemoteIP.c_str(),
clientRtp,
clientRtcp,
transportMode);
@@ -855,9 +852,8 @@ void WifiDisplaySource::onSetupRequest(
return;
}
- mPlaybackSessions.add(playbackSessionID, playbackSession);
-
- info->mPlaybackSessionID = playbackSessionID;
+ mClientInfo.mPlaybackSessionID = playbackSessionID;
+ mClientInfo.mPlaybackSession = playbackSession;
AString response = "RTSP/1.0 200 OK\r\n";
AppendCommonResponse(&response, cseq, playbackSessionID);
@@ -965,15 +961,15 @@ void WifiDisplaySource::onTeardownRequest(
return;
}
- looper()->unregisterHandler(playbackSession->id());
- mPlaybackSessions.removeItem(playbackSessionID);
-
AString response = "RTSP/1.0 200 OK\r\n";
AppendCommonResponse(&response, cseq, playbackSessionID);
+ response.append("Connection: close\r\n");
response.append("\r\n");
status_t err = mNetSession->sendRequest(sessionID, response.c_str());
CHECK_EQ(err, (status_t)OK);
+
+ disconnectClient(UNKNOWN_ERROR);
}
void WifiDisplaySource::onGetParameterRequest(
@@ -1007,19 +1003,10 @@ void WifiDisplaySource::onSetParameterRequest(
sp<PlaybackSession> playbackSession =
findPlaybackSession(data, &playbackSessionID);
-#if 1
- // XXX the older dongles do not include a "Session:" header in this request.
- if (playbackSession == NULL) {
- CHECK_EQ(mPlaybackSessions.size(), 1u);
- playbackSessionID = mPlaybackSessions.keyAt(0);
- playbackSession = mPlaybackSessions.valueAt(0);
- }
-#else
if (playbackSession == NULL) {
sendErrorResponse(sessionID, "454 Session Not Found", cseq);
return;
}
-#endif
// XXX check that the parameter is about that.
playbackSession->requestIDRFrame();
@@ -1078,37 +1065,42 @@ void WifiDisplaySource::sendErrorResponse(
}
int32_t WifiDisplaySource::makeUniquePlaybackSessionID() const {
- for (;;) {
- int32_t playbackSessionID = rand();
-
- if (playbackSessionID == -1) {
- // reserved.
- continue;
- }
-
- for (size_t i = 0; i < mPlaybackSessions.size(); ++i) {
- if (mPlaybackSessions.keyAt(i) == playbackSessionID) {
- continue;
- }
- }
-
- return playbackSessionID;
- }
+ return rand();
}
sp<WifiDisplaySource::PlaybackSession> WifiDisplaySource::findPlaybackSession(
const sp<ParsedMessage> &data, int32_t *playbackSessionID) const {
if (!data->findInt32("session", playbackSessionID)) {
- *playbackSessionID = 0;
- return NULL;
+ // XXX the older dongles do not always include a "Session:" header.
+ *playbackSessionID = mClientInfo.mPlaybackSessionID;
+ return mClientInfo.mPlaybackSession;
}
- ssize_t index = mPlaybackSessions.indexOfKey(*playbackSessionID);
- if (index < 0) {
+ if (*playbackSessionID != mClientInfo.mPlaybackSessionID) {
return NULL;
}
- return mPlaybackSessions.valueAt(index);
+ return mClientInfo.mPlaybackSession;
+}
+
+void WifiDisplaySource::disconnectClient(status_t err) {
+ if (mClientSessionID != 0) {
+ if (mClientInfo.mPlaybackSession != NULL) {
+ looper()->unregisterHandler(mClientInfo.mPlaybackSession->id());
+ mClientInfo.mPlaybackSession.clear();
+ }
+
+ mNetSession->destroySession(mClientSessionID);
+ mClientSessionID = 0;
+ }
+
+ if (mClient != NULL) {
+ if (err != OK) {
+ mClient->onDisplayError(IRemoteDisplayClient::kDisplayErrorUnknown);
+ } else {
+ mClient->onDisplayDisconnected();
+ }
+ }
}
} // namespace android
diff --git a/media/libstagefright/wifi-display/source/WifiDisplaySource.h b/media/libstagefright/wifi-display/source/WifiDisplaySource.h
index 0c214e9..3c8d50f 100644
--- a/media/libstagefright/wifi-display/source/WifiDisplaySource.h
+++ b/media/libstagefright/wifi-display/source/WifiDisplaySource.h
@@ -83,14 +83,16 @@ private:
struct in_addr mInterfaceAddr;
int32_t mSessionID;
+ int32_t mClientSessionID;
+
struct ClientInfo {
AString mRemoteIP;
AString mLocalIP;
int32_t mLocalPort;
int32_t mPlaybackSessionID;
+ sp<PlaybackSession> mPlaybackSession;
};
- // by sessionID.
- KeyedVector<int32_t, ClientInfo> mClientInfos;
+ ClientInfo mClientInfo;
bool mReaperPending;
@@ -98,8 +100,6 @@ private:
KeyedVector<ResponseID, HandleRTSPResponseFunc> mResponseHandlers;
- KeyedVector<int32_t, sp<PlaybackSession> > mPlaybackSessions;
-
status_t sendM1(int32_t sessionID);
status_t sendM3(int32_t sessionID);
status_t sendM4(int32_t sessionID);
@@ -182,6 +182,12 @@ private:
sp<PlaybackSession> findPlaybackSession(
const sp<ParsedMessage> &data, int32_t *playbackSessionID) const;
+ // Disconnects the current client and shuts down its playback session
+ // (if any). The reason for the disconnection is OK for orderly shutdown
+ // or a nonzero error code.
+ // A listener is notified accordingly.
+ void disconnectClient(status_t err);
+
DISALLOW_EVIL_CONSTRUCTORS(WifiDisplaySource);
};
generated by cgit v1.1 at 2024-07-31 08:04:24 +0000