image.bbclass: add rootfs_check_host_user_contaminated

This function is intended to be used in ROOTFS_POSTPROCESS_COMMAND, and checks
for any paths outside of /home which are owned by the user running bitbake.

(From OE-Core rev: 72903f7534cccad35886f2cad8aac98a59392ec7)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index 4e66535407..fc7d64d7e5 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -460,6 +460,20 @@ rootfs_trim_schemas () {
         done
 }
 
+rootfs_check_host_user_contaminated () {
+        contaminated="${WORKDIR}/host-user-contaminated.txt"
+        HOST_USER_UID="$(PSEUDO_UNLOAD=1 id -u)"
+        HOST_USER_GID="$(PSEUDO_UNLOAD=1 id -g)"
+
+        find "${IMAGE_ROOTFS}" -wholename "${IMAGE_ROOTFS}/home" -prune \
+            -user "$HOST_USER_UID" -o -group "$HOST_USER_GID" >"$contaminated"
+
+        if [ -s "$contaminated" ]; then
+                echo "WARNING: Paths in the rootfs are owned by the same user or group as the user running bitbake. See the logfile for the specific paths."
+                cat "$contaminated" | sed "s,^,  ,"
+        fi
+}
+
 # Make any absolute links in a sysroot relative
 rootfs_sysroot_relativelinks () {
         sysroot-relativelinks.py ${SDK_OUTPUT}/${SDKTARGETSYSROOT}