From b8732a80fea43fede84480c95903002d7feff975 Mon Sep 17 00:00:00 2001
From: Hirokazu Honda <hiroh@chromium.org>
Date: Tue, 15 Jun 2021 17:00:28 +0900
Subject: android: camera_device: Check if a request is configured on
 processCaptureRequest()

Add a check on processCaptureRequest() if a given capture
request contains a camera stream that has been configured.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/android/camera_device.cpp | 108 ++++++++++++++++++++++++++----------------
 src/android/camera_device.h   |   1 +
 2 files changed, 67 insertions(+), 42 deletions(-)

(limited to 'src')

diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp
index 407db507..13ee5fab 100644
--- a/src/android/camera_device.cpp
+++ b/src/android/camera_device.cpp
@@ -10,6 +10,7 @@
 #include "camera_ops.h"
 #include "post_processor.h"
 
+#include <algorithm>
 #include <fstream>
 #include <sys/mman.h>
 #include <unistd.h>
@@ -157,48 +158,6 @@ void sortCamera3StreamConfigs(std::vector<Camera3StreamConfig> &unsortedConfigs,
 	unsortedConfigs = sortedConfigs;
 }
 
-bool isValidRequest(camera3_capture_request_t *camera3Request)
-{
-	if (!camera3Request) {
-		LOG(HAL, Error) << "No capture request provided";
-		return false;
-	}
-
-	if (!camera3Request->num_output_buffers ||
-	    !camera3Request->output_buffers) {
-		LOG(HAL, Error) << "No output buffers provided";
-		return false;
-	}
-
-	for (uint32_t i = 0; i < camera3Request->num_output_buffers; i++) {
-		const camera3_stream_buffer_t &outputBuffer =
-			camera3Request->output_buffers[i];
-		if (!outputBuffer.buffer || !(*outputBuffer.buffer)) {
-			LOG(HAL, Error) << "Invalid native handle";
-			return false;
-		}
-
-		const native_handle_t *handle = *outputBuffer.buffer;
-		constexpr int kNativeHandleMaxFds = 1024;
-		if (handle->numFds < 0 || handle->numFds > kNativeHandleMaxFds) {
-			LOG(HAL, Error)
-				<< "Invalid number of fds (" << handle->numFds
-				<< ") in buffer " << i;
-			return false;
-		}
-
-		constexpr int kNativeHandleMaxInts = 1024;
-		if (handle->numInts < 0 || handle->numInts > kNativeHandleMaxInts) {
-			LOG(HAL, Error)
-				<< "Invalid number of ints (" << handle->numInts
-				<< ") in buffer " << i;
-			return false;
-		}
-	}
-
-	return true;
-}
-
 const char *rotationToString(int rotation)
 {
 	switch (rotation) {
@@ -843,6 +802,71 @@ void CameraDevice::abortRequest(camera3_capture_request_t *request)
 	callbacks_->process_capture_result(callbacks_, &result);
 }
 
+bool CameraDevice::isValidRequest(camera3_capture_request_t *camera3Request) const
+{
+	if (!camera3Request) {
+		LOG(HAL, Error) << "No capture request provided";
+		return false;
+	}
+
+	if (!camera3Request->num_output_buffers ||
+	    !camera3Request->output_buffers) {
+		LOG(HAL, Error) << "No output buffers provided";
+		return false;
+	}
+
+	/* configureStreams() has not been called or has failed. */
+	if (streams_.empty() || !config_) {
+		LOG(HAL, Error) << "No stream is configured";
+		return false;
+	}
+
+	for (uint32_t i = 0; i < camera3Request->num_output_buffers; i++) {
+		const camera3_stream_buffer_t &outputBuffer =
+			camera3Request->output_buffers[i];
+		if (!outputBuffer.buffer || !(*outputBuffer.buffer)) {
+			LOG(HAL, Error) << "Invalid native handle";
+			return false;
+		}
+
+		const native_handle_t *handle = *outputBuffer.buffer;
+		constexpr int kNativeHandleMaxFds = 1024;
+		if (handle->numFds < 0 || handle->numFds > kNativeHandleMaxFds) {
+			LOG(HAL, Error)
+				<< "Invalid number of fds (" << handle->numFds
+				<< ") in buffer " << i;
+			return false;
+		}
+
+		constexpr int kNativeHandleMaxInts = 1024;
+		if (handle->numInts < 0 || handle->numInts > kNativeHandleMaxInts) {
+			LOG(HAL, Error)
+				<< "Invalid number of ints (" << handle->numInts
+				<< ") in buffer " << i;
+			return false;
+		}
+
+		const camera3_stream *camera3Stream = outputBuffer.stream;
+		if (!camera3Stream)
+			return false;
+
+		const CameraStream *cameraStream =
+			static_cast<CameraStream *>(camera3Stream->priv);
+
+		auto found = std::find_if(streams_.begin(), streams_.end(),
+					  [cameraStream](const CameraStream &stream) {
+						  return &stream == cameraStream;
+					  });
+		if (found == streams_.end()) {
+			LOG(HAL, Error)
+				<< "No corresponding configured stream found";
+			return false;
+		}
+	}
+
+	return true;
+}
+
 int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Request)
 {
 	if (!isValidRequest(camera3Request))
diff --git a/src/android/camera_device.h b/src/android/camera_device.h
index 4747f577..18cf5118 100644
--- a/src/android/camera_device.h
+++ b/src/android/camera_device.h
@@ -96,6 +96,7 @@ private:
 
 	libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);
 	void abortRequest(camera3_capture_request_t *request);
+	bool isValidRequest(camera3_capture_request_t *request) const;
 	void notifyShutter(uint32_t frameNumber, uint64_t timestamp);
 	void notifyError(uint32_t frameNumber, camera3_stream_t *stream,
 			 camera3_error_msg_code code);
-- 
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