diff options
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.cpp | 30 | ||||
| -rw-r--r-- | src/v4l2/v4l2_camera_proxy.h | 3 |
2 files changed, 33 insertions, 0 deletions
diff --git a/src/v4l2/v4l2_camera_proxy.cpp b/src/v4l2/v4l2_camera_proxy.cpp index a411ea3e..7ac4eeb2 100644 --- a/src/v4l2/v4l2_camera_proxy.cpp +++ b/src/v4l2/v4l2_camera_proxy.cpp @@ -11,6 +11,7 @@ #include <array> #include <errno.h> #include <linux/videodev2.h> +#include <set> #include <string.h> #include <sys/mman.h> #include <unistd.h> @@ -521,8 +522,37 @@ int V4L2CameraProxy::vidioc_streamoff(V4L2CameraFile *file, int *arg) return ret; } +const std::set<unsigned long> V4L2CameraProxy::supportedIoctls_ = { + VIDIOC_QUERYCAP, + VIDIOC_ENUM_FMT, + VIDIOC_G_FMT, + VIDIOC_S_FMT, + VIDIOC_TRY_FMT, + VIDIOC_REQBUFS, + VIDIOC_QUERYBUF, + VIDIOC_QBUF, + VIDIOC_DQBUF, + VIDIOC_STREAMON, + VIDIOC_STREAMOFF, +}; + int V4L2CameraProxy::ioctl(V4L2CameraFile *file, unsigned long request, void *arg) { + if (!arg && (_IOC_DIR(request) & _IOC_WRITE)) { + errno = EFAULT; + return -1; + } + + if (supportedIoctls_.find(request) == supportedIoctls_.end()) { + errno = ENOTTY; + return -1; + } + + if (!arg && (_IOC_DIR(request) & _IOC_READ)) { + errno = EFAULT; + return -1; + } + int ret; switch (request) { case VIDIOC_QUERYCAP: diff --git a/src/v4l2/v4l2_camera_proxy.h b/src/v4l2/v4l2_camera_proxy.h index 36d1dbc8..86c1a7df 100644 --- a/src/v4l2/v4l2_camera_proxy.h +++ b/src/v4l2/v4l2_camera_proxy.h @@ -11,6 +11,7 @@ #include <linux/videodev2.h> #include <map> #include <memory> +#include <set> #include <sys/mman.h> #include <sys/types.h> #include <vector> @@ -68,6 +69,8 @@ private: static PixelFormat v4l2ToDrm(uint32_t format); static uint32_t drmToV4L2(const PixelFormat &format); + static const std::set<unsigned long> supportedIoctls_; + unsigned int refcount_; unsigned int index_; |