busybox: add utilities required for container cross-install

Add busybox configuration fragment enabling utilities needed for
container cross-install initramfs:

- base64: Required for transferring container storage from QEMU
  to host via serial console
- hexdump, uuencode, split: Additional useful utilities

These utilities are used by the rootfs/runtime/init inside
QEMU to encode container storage data for transfer.

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

3 files changed, 14 insertions, 0 deletions

diff --git a/recipes-core/busybox/busybox/utils.cfg b/recipes-core/busybox/busybox/utils.cfg
new file mode 100644
index 00000000..9182430c
--- /dev/null
+++ b/recipes-core/busybox/busybox/utils.cfg
@@ -0,0 +1,5 @@
+CONFIG_BASE64=y
+CONFIG_HEXDUMP=y
+CONFIG_UUENCODE=y
+CONFIG_SPLIT=y
+CONFIG_XXHD=y
diff --git a/recipes-core/busybox/busybox_%.bbappend b/recipes-core/busybox/busybox_%.bbappend
index 3d39bba3..5bafb364 100644
--- a/recipes-core/busybox/busybox_%.bbappend
+++ b/recipes-core/busybox/busybox_%.bbappend
@@ -1,3 +1,4 @@
 require ${@bb.utils.contains('DISTRO_FEATURES', 'virtualization', '${BPN}_virtualization.inc', '', d)}
 require ${@bb.utils.contains('DISTRO_FEATURES', 'vmsep', '${BPN}_vmsep.inc', '', d)}
+require ${@bb.utils.contains('DISTRO_FEATURES', 'vcontainer', '${BPN}_vcontainer.inc', '', d)}
 
diff --git a/recipes-core/busybox/busybox_vcontainer.inc b/recipes-core/busybox/busybox_vcontainer.inc
new file mode 100644
index 00000000..c54c1dc3
--- /dev/null
+++ b/recipes-core/busybox/busybox_vcontainer.inc
@@ -0,0 +1,8 @@
+# Busybox configuration for vcontainer (vdkr/vpdmn)
+#
+# These utilities are required by the vcontainer initramfs scripts
+# for data transfer between QEMU guest and host via serial console.
+
+FILESEXTRAPATHS:prepend := "${THISDIR}/busybox:"
+
+SRC_URI += "file://utils.cfg"