[isar-cip-core PATCH v3 5/5] swupdate: create swu file from wic image


Quirin Gylstorff
 

From: Quirin Gylstorff <quirin.gylstorff@siemens.com>

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 <quirin.gylstorff@siemens.com>
---
classes/extract-partition.bbclass | 26 +++++++++++++
classes/wic-swu-img.bbclass | 20 ++++++++++
kas/opt/ebg-swu.yml | 4 +-
recipes-core/images/cip-core-image.bb | 10 +++++
recipes-core/images/files/sw-description.tmpl | 37 +++++++++++++++++++
5 files changed, 95 insertions(+), 2 deletions(-)
create mode 100644 classes/extract-partition.bbclass
create mode 100644 classes/wic-swu-img.bbclass
create mode 100644 recipes-core/images/files/sw-description.tmpl

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 <quirin.gylstorff@siemens.com>
+#
+# 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 <quirin.gylstorff@siemens.com>
+#
+# 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/ebg-swu.yml b/kas/opt/ebg-swu.yml
index 5b39730..304fa4d 100644
--- a/kas/opt/ebg-swu.yml
+++ b/kas/opt/ebg-swu.yml
@@ -22,5 +22,5 @@ local_conf_header:
WICVARS += "WDOG_TIMEOUT"

wic: |
- IMAGE_TYPE = "wic-img"
- WKS_FILE = "${MACHINE}-${BOOTLOADER}.wks"
+ IMAGE_TYPE = "wic-swu-img"
+ WKS_FILE ?= "${MACHINE}-${BOOTLOADER}.wks"
diff --git a/recipes-core/images/cip-core-image.bb b/recipes-core/images/cip-core-image.bb
index 9ee4b25..b1ed491 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 KERNEL_IMAGE INITRD_IMAGE"
+
+SWU_ADDITIONAL_FILES += "${INITRD_IMAGE} ${KERNEL_IMAGE} ${ROOTFS_PARTITION_NAME}"
diff --git a/recipes-core/images/files/sw-description.tmpl b/recipes-core/images/files/sw-description.tmpl
new file mode 100644
index 0000000..4d32f6f
--- /dev/null
+++ b/recipes-core/images/files/sw-description.tmpl
@@ -0,0 +1,37 @@
+#
+# CIP Core, generic profile
+#
+# Copyright (c) Siemens AG, 2020
+#
+# Authors:
+# Quirin Gylstorff <quirin.gylstorff@siemens.com>
+#
+# SPDX-License-Identifier: MIT
+#
+software =
+{
+ version = "0.2";
+ name = "cip software update"
+ images: ({
+ filename = "${ROOTFS_PARTITION_NAME}";
+ device = "fedcba98-7654-3210-cafe-5e0710000001,fedcba98-7654-3210-cafe-5e0710000002";
+ type = "roundrobin";
+ compressed = true;
+ filesystem = "ext4";
+ });
+ files: ({
+ filename = "${KERNEL_IMAGE}";
+ path = "vmlinuz";
+ type = "kernelfile";
+ device = "sda2,sda3";
+ filesystem = "vfat";
+ },
+ {
+ filename = "${INITRD_IMAGE}";
+ path = "initrd.img";
+ type = "kernelfile";
+ device = "sda2,sda3";
+ filesystem = "vfat";
+ });
+}
+
--
2.20.1

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