[isar-cip-core,v2,5/5] swupdate: create swu file from wic image

Commit Message

Quirin Gylstorff June 29, 2020, 9:56 a.m. UTC

From: Quirin Gylstorff <[e-mail]>

Create a swu file for swupdate to update devices in the field.
This is done in the same step as the complete image build
to avoid diverging images.

Signed-off-by: Quirin Gylstorff <[e-mail]>
---
 classes/extract-partition.bbclass             | 26 +++++++++++++++++
 classes/wic-swu-img.bbclass                   | 20 +++++++++++++
 kas/opt/qemu-swupdate.yml                     | 19 ++++++++++++
 recipes-core/images/cip-core-image.bb         | 10 +++++++
 recipes-core/images/files/sw-description.tmpl | 29 +++++++++++++++++++
 5 files changed, 104 insertions(+)
 create mode 100644 classes/extract-partition.bbclass
 create mode 100644 classes/wic-swu-img.bbclass
 create mode 100644 kas/opt/qemu-swupdate.yml
 create mode 100644 recipes-core/images/files/sw-description.tmpl

Patch

diff --git a/classes/extract-partition.bbclass b/classes/extract-partition.bbclass
new file mode 100644
index 0000000..e9de8fc
--- /dev/null
+++ b/classes/extract-partition.bbclass
@@ -0,0 +1,26 @@ 
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2020
+#
+# Authors:
+#  Quirin Gylstorff <[e-mail]>
+#
+# SPDX-License-Identifier: MIT
+#
+
+SOURCE_IMAGE_FILE ?= "${WIC_IMAGE_FILE}"
+EXTRACT_PARTITIONS ?= "img4"
+
+do_extract_partition () {
+    for PARTITION in ${EXTRACT_PARTITIONS}; do
+        rm -f ${DEPLOY_DIR_IMAGE}/${PARTITION}.gz
+        PART_START=$(fdisk -lu ${SOURCE_IMAGE_FILE} | grep ${PARTITION} | awk '{ print $2 }'  )
+        PART_END=$(fdisk -lu ${SOURCE_IMAGE_FILE} | grep ${PARTITION} | awk '{ print $3 }'  )
+        PART_COUNT=$(expr ${PART_END} - ${PART_START} + 1 )
+
+        dd if=${SOURCE_IMAGE_FILE} of=${DEPLOY_DIR_IMAGE}/${PARTITION} bs=512 skip=${PART_START} count=${PART_COUNT}
+
+        gzip ${DEPLOY_DIR_IMAGE}/${PARTITION}
+    done
+}
diff --git a/classes/wic-swu-img.bbclass b/classes/wic-swu-img.bbclass
new file mode 100644
index 0000000..c8532ba
--- /dev/null
+++ b/classes/wic-swu-img.bbclass
@@ -0,0 +1,20 @@ 
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2020
+#
+# Authors:
+#  Quirin Gylstorff <[e-mail]>
+#
+# SPDX-License-Identifier: MIT
+#
+
+
+inherit wic-img
+inherit extract-partition
+inherit swupdate-img
+
+SOURCE_IMAGE_FILE = "${WIC_IMAGE_FILE}"
+
+addtask do_extract_partition after do_wic_image
+addtask do_swupdate_image after do_extract_partition
diff --git a/kas/opt/qemu-swupdate.yml b/kas/opt/qemu-swupdate.yml
new file mode 100644
index 0000000..99b4547
--- /dev/null
+++ b/kas/opt/qemu-swupdate.yml
@@ -0,0 +1,19 @@ 
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2020
+#
+# Authors:
+#  Quirin Gylstorff <[e-mail]>
+#
+# SPDX-License-Identifier: MIT
+#
+
+
+header:
+  version: 8
+
+local_conf_header:
+  qemu-wic: |
+    IMAGE_TYPE ?= "wic-swu-img"
+    WKS_FILE = "qemu-amd64-${BOOTLOADER}.wks"
diff --git a/recipes-core/images/cip-core-image.bb b/recipes-core/images/cip-core-image.bb
index 9ee4b25..4dfc983 100644
--- a/recipes-core/images/cip-core-image.bb
+++ b/recipes-core/images/cip-core-image.bb
@@ -17,3 +17,13 @@  DESCRIPTION = "CIP Core image"
 IMAGE_INSTALL += "customizations"
 # for cip-testing
 IMAGE_INSTALL += "ltp-full"
+
+# for swupdate
+EXTRACT_PARTITIONS = "img4"
+ROOTFS_PARTITION_NAME="img4.gz"
+
+SRC_URI += "file://sw-description.tmpl"
+TEMPLATE_FILES += "sw-description.tmpl"
+TEMPLATE_VARS += "PN ROOTFS_PARTITION_NAME"
+
+SWU_ADDITIONAL_FILES += "linux.signed.efi ${ROOTFS_PARTITION_NAME}"
diff --git a/recipes-core/images/files/sw-description.tmpl b/recipes-core/images/files/sw-description.tmpl
new file mode 100644
index 0000000..bef1984
--- /dev/null
+++ b/recipes-core/images/files/sw-description.tmpl
@@ -0,0 +1,29 @@ 
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2020
+#
+# Authors:
+#  Quirin Gylstorff <[e-mail]>
+#
+# SPDX-License-Identifier: MIT
+#
+software =
+{
+    version = "0.2";
+    name = "ebsy secure boot update"
+    images: ({
+            filename = "${EXTRACTED_PARTITION_NAME}";
+            device = "fedcba98-7654-3210-cafe-5e0710000001,fedcba98-7654-3210-cafe-5e0710000002";
+            type = "roundrobin";
+            compressed = true;
+            filesystem = "ext4";
+    });
+    files: ({
+            filename = "linux.signed.efi";
+            path = "linux.signed.efi";
+            type = "kernelfile";
+            device = "sda2,sda3";
+            filesystem = "vfat";
+    })
+}