Update 34-enable-hw.bash

root/etc/cont-init.d/34-enable-hw.bash

@@ -1,26 +1,35 @@
 #!/usr/bin/with-contenv bash
 
-## hardware support ##
+FILES=$(find /dev/dri /dev/dvb -type c -print 2>/dev/null)
-FILES=$(find /dev/dri -type c -print 2>/dev/null)
+
 for i in $FILES
 do
-  VIDEO_GID=$(stat -c '%g' "$i")
+    VIDEO_GID=$(stat -c '%g' "${i}")
-  if id -G abc | grep -qw "$VIDEO_GID"; then
+    VIDEO_UID=$(stat -c '%u' "${i}")
-    touch /groupadd
+    # check if user matches device
+    if id -u abc | grep -qw "${VIDEO_UID}"; then
+        echo "**** permissions for ${i} are good ****"
     else
-    if [ ! "${VIDEO_GID}" == '0' ]; then
+        # check if group matches and that device has group rw
+        if id -G abc | grep -qw "${VIDEO_GID}" && [ $(stat -c '%A' "${i}" | cut -b 5,6) = "rw" ]; then
+            echo "**** permissions for ${i} are good ****"
+        # check if device needs to be added to video group
+        elif ! id -G abc | grep -qw "${VIDEO_GID}"; then
+            # check if video group needs to be created
             VIDEO_NAME=$(getent group "${VIDEO_GID}" | awk -F: '{print $1}')
             if [ -z "${VIDEO_NAME}" ]; then
-        VIDEO_NAME="video$(head /dev/urandom | tr -dc 'a-zA-Z0-9' | head -c8)"
+                VIDEO_NAME="video$(head /dev/urandom | tr -dc 'a-z0-9' | head -c4)"
-        groupadd "$VIDEO_NAME"
+                groupadd "${VIDEO_NAME}"
-        groupmod -g "$VIDEO_GID" "$VIDEO_NAME"
+                groupmod -g "${VIDEO_GID}" "${VIDEO_NAME}"
+                echo "**** creating video group ${VIDEO_NAME} with id ${VIDEO_GID} ****"
             fi
-      usermod -a -G "$VIDEO_NAME" abc
+            echo "**** adding ${i} to video group ${VIDEO_NAME} with id ${VIDEO_GID} ****"
-      touch /groupadd
+            usermod -a -G "${VIDEO_NAME}" abc
         fi
+        # check if device has group rw
+        if [ $(stat -c '%A' "${i}" | cut -b 5,6) != "rw" ]; then
+            echo -e "**** The device ${i} does not have group read/write permissions, attempting to fix inside the container. ****"
+            chmod g+rw "${i}"
         fi
-done
-if [ -n "${FILES}" ] && [ ! -f "/groupadd" ]; then
-  usermod -a -G root abc
     fi
-exit 0
+done