Add RAUC updater

.gitmodules

@@ -5,7 +5,7 @@
 [submodule "sources/bitbake"]
 	path = sources/bitbake
 	url = git://git.openembedded.org/bitbake
-	branch = 1.52
+	branch = 1.50.3
 [submodule "sources/meta-openembedded"]
 	path = sources/meta-openembedded
 	url = git://git.openembedded.org/meta-openembedded
@@ -14,3 +14,7 @@
 	path = sources/meta-raspberrypi
 	url = git://git.yoctoproject.org/meta-raspberrypi
 	branch = hardknott
+[submodule "sources/meta-rauc"]
+	path = sources/meta-rauc
+	url = https://github.com/rauc/meta-rauc.git
+	branch = hardknott

LICENSE

@@ -0,0 +1,201 @@
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README.md

@@ -0,0 +1,34 @@
+# TSGRain yocto os
+
+This is the yocto-based linux distribution that runs the TSGRain irrigation controller.
+
+## Build image
+
+```sh
+# Use docker build environment
+docker run -it --rm --user $(id -u):$(id -g) -v $(pwd):$(pwd) thetadev256/yoctobuild
+
+. ./oe-init-build-env
+bitbake tsgrain-image
+```
+
+## Provision package repository
+
+Build the package index and run a webserver in the package directory
+
+```sh
+bitbake package-index
+cd {BUILD_DIR}/tmp-glibc/deploy/ipk
+sudo python -m http.server 80
+```
+
+On the Pi, add the server to the opkg package sources
+```sh
+# Add to /etc/opkg/opkg.conf
+src/gz all http://{hostname}.local/all
+src/gz cortexa53 http://{hostname}.local/cortexa53
+src/gz raspberrypi3_64 http://{hostname}.local/raspberrypi3_64
+
+opkg update
+
+```

docker/Dockerfile

@@ -0,0 +1,17 @@
+FROM debian:10
+
+RUN apt-get update && apt-get install -y git nano tar locales \
+	gawk wget git-core diffstat unzip texinfo gcc-multilib \
+    build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
+    xz-utils debianutils iputils-ping libsdl1.2-dev xterm libmd0 && \
+    apt-get clean autoclean
+
+RUN echo "ybuildr:x:1000:1000:ybuildr:/home:/bin/bash" >> /etc/passwd && \
+    echo "root:root" | chpasswd && \
+    echo "ybuildr:1234" | chpasswd && \
+	sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
+	locale-gen
+
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8

keys/.gitignore

@@ -0,0 +1 @@
+dev

keys/deploy_certs.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+set -e
+
+cd -- $( dirname -- "${BASH_SOURCE[0]}" )
+
+cp dev/ca.cert.pem ../sources/meta-tsgrain/recipes-core/rauc/files/ca.cert.pem

keys/gen_dev_certs.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+set -e
+cd -- $( dirname -- "${BASH_SOURCE[0]}" )
+
+ORG="Hochschule Augsburg"
+PROJ="TSGRain"
+
+BASE_DEV="$(pwd)/dev"
+export OPENSSL_CONF=$(pwd)/openssl.cnf
+
+if [ -e $BASE_DEV ]; then
+    echo "CA already exists, creating new certificate"
+    cd $BASE_DEV
+else
+    echo "Creating new CA"
+
+    mkdir -p $BASE_DEV/{private,certs}
+    touch $BASE_DEV/index.txt
+    echo 00 > $BASE_DEV/serial
+    cd $BASE_DEV
+
+    echo "Development CA"
+    openssl req -newkey rsa -keyout private/ca.key.pem -out ca.csr.pem -subj "/O=$ORG/CN=$PROJ Development CA"
+    openssl ca -batch -selfsign -extensions v3_ca -in ca.csr.pem -out ca.cert.pem -keyfile private/ca.key.pem
+fi
+
+SN=$(cat serial)
+
+echo "Development Signing Keys 1"
+openssl req -newkey rsa -keyout private/development-$SN.key.pem -out development-$SN.csr.pem -subj "/O=$ORG/CN=$PROJ Development-$SN"
+openssl ca -batch -extensions v3_leaf -in development-$SN.csr.pem -out development-$SN.cert.pem

keys/openssl.cnf

@@ -0,0 +1,54 @@
+[ ca ]
+default_ca      = CA_default            # The default ca section
+
+[ CA_default ]
+dir            = .                     # top dir
+database       = $dir/index.txt        # index file.
+new_certs_dir  = $dir/certs            # new certs dir
+serial         = $dir/serial           # serial no file
+RANDFILE       = $dir/private/.rand    # random number file
+
+private_key    = $dir/private/ca.key.pem# CA private key
+certificate    = $dir/ca.cert.pem       # The CA cert
+
+default_startdate = 19700101000000Z
+default_enddate = 99991231235959Z
+
+default_crl_days= 30                   # how long before next CRL
+
+default_md     = sha256                # md to use
+policy         = policy_any            # default policy
+email_in_dn    = no                    # Don't add the email into cert DN
+name_opt       = ca_default            # Subject name display option
+cert_opt       = ca_default            # Certificate display option
+copy_extensions = none                 # Don't copy extensions from request
+
+[ policy_any ]
+organizationName       = match
+commonName             = supplied
+
+[ req ]
+default_bits           = 2048
+distinguished_name     = req_distinguished_name
+x509_extensions        = v3_leaf
+encrypt_key = no
+default_md = sha256
+
+[ req_distinguished_name ]
+commonName                     = Common Name (eg, YOUR name)
+commonName_max                 = 64
+
+[ v3_ca ]
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid:always,issuer:always
+basicConstraints = CA:TRUE
+
+[ v3_inter ]
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid:always,issuer:always
+basicConstraints = CA:TRUE,pathlen:0
+
+[ v3_leaf ]
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid:always,issuer:always
+basicConstraints = CA:FALSE

sample-files/bblayers.conf.sample

@@ -10,10 +10,10 @@ BBFILES ?= ""
 
 BBLAYERS ?= " \
   ##OEROOT##/sources/meta-tsgrain \
+  ##OEROOT##/sources/meta-rauc \
   ##OEROOT##/sources/meta-raspberrypi \
   ##OEROOT##/sources/meta-openembedded/meta-initramfs \
   ##OEROOT##/sources/meta-openembedded/meta-oe \
-  ##OEROOT##/sources/meta-openembedded/meta-webserver \
   ##OEROOT##/sources/meta-openembedded/meta-networking \
   ##OEROOT##/sources/meta-openembedded/meta-python \
   ##OEROOT##/sources/meta-openembedded/meta-multimedia  \

sample-files/local.conf.sample

@@ -1,9 +1,9 @@
 DISTRO   = "tsgrain"
 
-#MACHINE = "raspberrypi3"
+MACHINE = "raspberrypi3-64"
 
 # This sets the default machine to be qemuarm if no other machine is selected:
-MACHINE ??= "qemuarm"
+MACHINE ??= "qemuarm64"
 
 # BUILDFILE_DIR = "/buildfiles"
 
@@ -14,8 +14,6 @@ TMPDIR = "${BUILDFILE_DIR}/tmp"
 
 USER_CLASSES = "buildstats buildstats-summary image-mklibs image-prelink"
 
-PACKAGE_CLASSES = "package_ipk"
-
 PATCHRESOLVE = "noop"
 
 # Don't generate the mirror tarball for SCM repos, the snapshot is enough

sources/meta-openembedded

@@ -1 +1 @@
-Subproject commit d378e4293d18e374f5d1494a88bfc3caee4d02df
+Subproject commit 672a7420b28129aecdbf077505058b90d23c0919

sources/meta-rauc

@@ -0,0 +1 @@
+Subproject commit 64b84017dd07be1d9da76943b59d77028bb5ccc7

sources/meta-tsgrain/classes/rauc-integration.bbclass

@@ -0,0 +1 @@
+OVERRIDES .= "${@bb.utils.contains('DISTRO_FEATURES', 'rauc', ':rauc-integration', '', d)}"

sources/meta-tsgrain/conf/distro/tsgrain.conf

@@ -11,7 +11,7 @@ LOCALCONF_VERSION = "1"
 SDK_NAME = "${DISTRO}-${TCLIBC}-${SDKMACHINE}-${IMAGE_BASENAME}-${TUNE_PKGARCH}-${MACHINE}"
 SDKPATHINSTALL = "/opt/${DISTRO}/${SDK_VERSION}"
 
-TSGRAIN_DEFAULT_DISTRO_FEATURES = "systemd largefile wifi bluez5 bluetooth"
+TSGRAIN_DEFAULT_DISTRO_FEATURES = "systemd largefile wifi bluez5 bluetooth rauc"
 
 DISTRO_FEATURES ?= "${DISTRO_FEATURES_DEFAULT} ${TSGRAIN_DEFAULT_DISTRO_FEATURES}"
 DISTRO_FEATURES_remove = "x11 sysvinit"
@@ -20,5 +20,16 @@ VIRTUAL-RUNTIME_init_manager = "systemd"
 VIRTUAL-RUNTIME_initscripts = ""
 VIRTUAL-RUNTIME_dev_manager = "systemd"
 
+PACKAGE_CLASSES = "package_ipk"
+
+# Raspberry Pi specific settings
+SDIMG_ROOTFS_TYPE = "ext4"
+RPI_USE_U_BOOT = "1"
+PREFERRED_PROVIDER_virtual/bootloader = "u-boot"
+PREFERRED_PROVIDER_u-boot-fw-utils = "libubootenv"
+ENABLE_UART = "1"
+ENABLE_I2C = "1"
+KERNEL_MODULE_AUTOLOAD:rpi += "i2c-dev i2c-bcm2708"
+
 require conf/distro/include/yocto-uninative.inc
 INHERIT += "uninative buildstats sstate license remove-libtool"

sources/meta-tsgrain/recipes-bsp/rpi-u-boot-scr/files/boot.cmd.in

@@ -0,0 +1,46 @@
+fdt addr ${fdt_addr} && fdt get value bootargs /chosen bootargs
+
+test -n "${BOOT_ORDER}" || setenv BOOT_ORDER "A B"
+test -n "${BOOT_A_LEFT}" || setenv BOOT_A_LEFT 3
+test -n "${BOOT_B_LEFT}" || setenv BOOT_B_LEFT 3
+test -n "${BOOT_DEV}" || setenv BOOT_DEV "mmc 0:1"
+
+setenv bootpart
+setenv raucslot
+
+for BOOT_SLOT in "${BOOT_ORDER}"; do
+  if test "x${bootpart}" != "x"; then
+    # skip remaining slots
+  elif test "x${BOOT_SLOT}" = "xA"; then
+    if test ${BOOT_A_LEFT} -gt 0; then
+      setexpr BOOT_A_LEFT ${BOOT_A_LEFT} - 1
+      echo "Found valid RAUC slot A"
+      setenv bootpart "/dev/mmcblk0p2"
+      setenv raucslot "A"
+      setenv BOOT_DEV "mmc 0:2"
+    fi
+  elif test "x${BOOT_SLOT}" = "xB"; then
+    if test ${BOOT_B_LEFT} -gt 0; then
+      setexpr BOOT_B_LEFT ${BOOT_B_LEFT} - 1
+      echo "Found valid RAUC slot B"
+      setenv bootpart "/dev/mmcblk0p3"
+      setenv raucslot "B"
+      setenv BOOT_DEV "mmc 0:3"
+    fi
+  fi
+done
+
+if test -n "${bootpart}"; then
+  setenv bootargs "${bootargs} root=${bootpart} rauc.slot=${raucslot}"
+  saveenv
+else
+  echo "No valid RAUC slot found. Resetting tries to 3"
+  setenv BOOT_A_LEFT 3
+  setenv BOOT_B_LEFT 3
+  saveenv
+  reset
+fi
+
+fatload mmc 0:1 ${kernel_addr_r} @@KERNEL_IMAGETYPE@@
+if test ! -e mmc 0:1 uboot.env; then saveenv; fi;
+@@KERNEL_BOOTCMD@@ ${kernel_addr_r} - ${fdt_addr}

sources/meta-tsgrain/recipes-bsp/rpi-u-boot-scr/rpi-u-boot-scr.bbappend

@@ -0,0 +1,4 @@
+inherit rauc-integration
+
+FILESEXTRAPATHS:prepend:rauc-integration := "${THISDIR}/files:"
+SRC_URI:append:rauc-integration = " file://boot.cmd.in"

sources/meta-tsgrain/recipes-connectivity/dnsmasq/dnsmasq_%.bbappend

@@ -0,0 +1 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"

sources/meta-tsgrain/recipes-connectivity/hostapd/files/hostapd.service

@@ -0,0 +1,11 @@
+[Unit]
+Description=Hostapd IEEE 802.11 AP, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator
+After=network.target
+
+[Service]
+Type=forking
+PIDFile=/run/hostapd.pid
+ExecStart=@SBINDIR@/hostapd /app/hostapd/hostapd.conf -P /run/hostapd.pid -B
+
+[Install]
+WantedBy=multi-user.target

sources/meta-tsgrain/recipes-connectivity/hostapd/hostapd_%.bbappend

@@ -0,0 +1,23 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
+
+SRC_URI_append = "\
+    file://hostapd.conf \
+"
+
+FILES_${PN} += "/app/hostapd/hostapd.conf"
+
+SYSTEMD_AUTO_ENABLE_${PN} = "enable"
+
+do_install_append() {
+    # Remove original config file
+    rm -rf ${D}${sysconfdir}
+
+    # Install config file to appfs
+    install -D -m 644 ${WORKDIR}/hostapd.conf ${D}/app/hostapd/hostapd.conf
+
+    # Change config file path
+    install -m 0644 ${WORKDIR}/hostapd.service ${D}${systemd_unitdir}/system/
+    sed -i -e 's,@SBINDIR@,${sbindir},g' -e 's,@SYSCONFDIR@,/app/hostapd,g' ${D}${systemd_unitdir}/system/hostapd.service
+}
+
+CONFFILES_${PN} = "/app/hostapd/hostapd.conf"

sources/meta-tsgrain/recipes-connectivity/openssh/files/sshd_config

@@ -0,0 +1,118 @@
+#	$OpenBSD: sshd_config,v 1.102 2018/02/16 02:32:40 djm Exp $
+
+# This is the sshd server system-wide configuration file.  See
+# sshd_config(5) for more information.
+
+# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin
+
+# The strategy used for options in the default sshd_config shipped with
+# OpenSSH is to specify options with their default value where
+# possible, but leave them commented.  Uncommented options override the
+# default value.
+
+#Port 22
+#AddressFamily any
+#ListenAddress 0.0.0.0
+#ListenAddress ::
+
+HostKey /app/ssh/ssh_host_rsa_key
+HostKey /app/ssh/ssh_host_ecdsa_key
+HostKey /app/ssh/ssh_host_ed25519_key
+
+# Ciphers and keying
+#RekeyLimit default none
+
+# Logging
+#SyslogFacility AUTH
+#LogLevel INFO
+
+# Authentication:
+
+#LoginGraceTime 2m
+#PermitRootLogin prohibit-password
+#StrictModes yes
+#MaxAuthTries 6
+#MaxSessions 10
+
+#PubkeyAuthentication yes
+
+# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
+# but this is overridden so installations will only check .ssh/authorized_keys
+AuthorizedKeysFile	.ssh/authorized_keys
+
+#AuthorizedPrincipalsFile none
+
+#AuthorizedKeysCommand none
+#AuthorizedKeysCommandUser nobody
+
+# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
+#HostbasedAuthentication no
+# Change to yes if you don't trust ~/.ssh/known_hosts for
+# HostbasedAuthentication
+#IgnoreUserKnownHosts no
+# Don't read the user's ~/.rhosts and ~/.shosts files
+#IgnoreRhosts yes
+
+# To disable tunneled clear text passwords, change to no here!
+#PasswordAuthentication yes
+#PermitEmptyPasswords no
+
+# Change to yes to enable challenge-response passwords (beware issues with
+# some PAM modules and threads)
+ChallengeResponseAuthentication no
+
+# Kerberos options
+#KerberosAuthentication no
+#KerberosOrLocalPasswd yes
+#KerberosTicketCleanup yes
+#KerberosGetAFSToken no
+
+# GSSAPI options
+#GSSAPIAuthentication no
+#GSSAPICleanupCredentials yes
+
+# Set this to 'yes' to enable PAM authentication, account processing,
+# and session processing. If this is enabled, PAM authentication will
+# be allowed through the ChallengeResponseAuthentication and
+# PasswordAuthentication.  Depending on your PAM configuration,
+# PAM authentication via ChallengeResponseAuthentication may bypass
+# the setting of "PermitRootLogin without-password".
+# If you just want the PAM account and session checks to run without
+# PAM authentication, then enable this but set PasswordAuthentication
+# and ChallengeResponseAuthentication to 'no'.
+#UsePAM no
+
+#AllowAgentForwarding yes
+#AllowTcpForwarding yes
+#GatewayPorts no
+#X11Forwarding no
+#X11DisplayOffset 10
+#X11UseLocalhost yes
+#PermitTTY yes
+#PrintMotd yes
+#PrintLastLog yes
+#TCPKeepAlive yes
+#UseLogin no
+#PermitUserEnvironment no
+Compression no
+ClientAliveInterval 15
+ClientAliveCountMax 4
+#UseDNS no
+#PidFile /var/run/sshd.pid
+#MaxStartups 10:30:100
+#PermitTunnel no
+#ChrootDirectory none
+#VersionAddendum none
+
+# no default banner path
+#Banner none
+
+# override default of no subsystems
+Subsystem	sftp	/usr/libexec/sftp-server
+
+# Example of overriding settings on a per-user basis
+#Match User anoncvs
+#	X11Forwarding no
+#	AllowTcpForwarding no
+#	PermitTTY no
+#	ForceCommand cvs server

sources/meta-tsgrain/recipes-connectivity/openssh/openssh_%.bbappend

@@ -1,9 +1,9 @@
 FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
 
 SRC_URI_append = "\
-    file://dnsmasq.conf \
+    file://sshd_config \
 "
 
 do_install_append() {
-    install -m 644 ${WORKDIR}/dnsmasq.conf ${D}${sysconfdir}
+    install -m 644 ${WORKDIR}/sshd_config ${D}${sysconfdir}/ssh
 }

sources/meta-tsgrain/recipes-core/base-files/base-files_%.bbappend

@@ -0,0 +1 @@
+FILESEXTRAPATHS:prepend:rpi := "${THISDIR}/files:"

sources/meta-tsgrain/recipes-core/base-files/files/fstab

@@ -0,0 +1,10 @@
+# stock fstab - you probably want to override this with a machine specific one
+
+/dev/root            /                    auto       defaults              1  1
+proc                 /proc                proc       defaults              0  0
+devpts               /dev/pts             devpts     mode=0620,ptmxmode=0666,gid=5      0  0
+tmpfs                /run                 tmpfs      mode=0755,nodev,nosuid,strictatime 0  0
+tmpfs                /var/volatile        tmpfs      defaults              0  0
+
+/dev/mmcblk0p1  /boot   vfat    defaults        0       0
+/dev/mmcblk0p4  /app    ext4    defaults        0       0

sources/meta-tsgrain/recipes-core/bundles/tsgrain-update.bb

@@ -0,0 +1,14 @@
+DESCRIPTION = "TSGRain RAUC bundle generator"
+
+inherit bundle
+
+RAUC_BUNDLE_COMPATIBLE = "TSGRain"
+RAUC_BUNDLE_VERSION = "v0.0.1"
+RAUC_BUNDLE_DESCRIPTION = "TSGRain update bundle"
+RAUC_BUNDLE_SLOTS = "rootfs"
+RAUC_SLOT_rootfs = "tsgrain-image"
+RAUC_SLOT_rootfs[fstype] = "ext4"
+
+RAUC_CERT_FILE = "${THISDIR}/../../../../keys/dev/development-01.cert.pem"
+RAUC_KEY_FILE = "${THISDIR}/../../../../keys/dev/private/development-01.key.pem"
+RAUC_KEYRING_FILE = "${THISDIR}/../../../../keys/dev/ca.cert.pem"

sources/meta-tsgrain/recipes-core/hostapd/hostapd_%.bbappend

@@ -1,11 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
-
-SRC_URI_append = "\
-    file://hostapd.conf \
-"
-
-SYSTEMD_AUTO_ENABLE_${PN} = "enable"
-
-do_install_append() {
-    install -m 644 ${WORKDIR}/hostapd.conf ${D}${sysconfdir}
-}

sources/meta-tsgrain/recipes-core/images/tsgrain-image.bb

@@ -7,6 +7,7 @@ IMAGE_INSTALL = "\
     \
     curl \
     python3 \
+    i2c-tools \
 "
 
 IMAGE_FEATURES = "\
@@ -16,7 +17,9 @@ IMAGE_FEATURES = "\
 "
 
 IMAGE_LINGUAS = ""
-IMAGE_FSTYPES = "tar.bz2 ext3 ${@bb.utils.contains_any("MACHINE", "raspberrypi3", "rpi-sdimg", "", d)}"
 
-LICENSE = "MIT"
+IMAGE_FSTYPES="tar.bz2 ext4 wic.bz2"
+WKS_FILE = "sdimage-tsgrain.wks"
+
+LICENSE = "Apache-2.0"
 inherit core-image

sources/meta-tsgrain/recipes-core/packagegroups/packagegroup-essential.bb

@@ -14,4 +14,5 @@ RRECOMMENDS_${PN} = "\
     cpufrequtils \
     htop \
     bash-completion \
+    nano \
 "

sources/meta-tsgrain/recipes-core/rauc/files/ca.cert.pem

@@ -0,0 +1,81 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 0 (0x0)
+        Signature Algorithm: sha256WithRSAEncryption
+        Issuer: O=Hochschule Augsburg, CN=TSGRain Development CA
+        Validity
+            Not Before: Jan  1 00:00:00 1970 GMT
+            Not After : Dec 31 23:59:59 9999 GMT
+        Subject: O=Hochschule Augsburg, CN=TSGRain Development CA
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                RSA Public-Key: (2048 bit)
+                Modulus:
+                    00:af:04:cb:e9:c5:9a:07:90:57:60:70:29:ac:de:
+                    ce:02:d1:63:11:8c:13:b1:92:31:d1:90:41:fb:2e:
+                    29:43:1e:76:ea:1e:a1:d1:f5:50:c9:bc:fb:42:a9:
+                    97:2c:f2:5c:05:2e:27:d1:bc:5d:c7:0f:fd:91:61:
+                    2d:1c:6d:80:58:e3:0b:a7:66:57:d2:2b:48:4d:d6:
+                    8b:f5:2b:ed:38:0d:54:b4:e5:4c:72:3f:6d:4e:c6:
+                    f2:eb:93:13:9b:34:b7:da:47:34:06:72:a6:42:61:
+                    94:aa:2e:13:f9:bd:6b:01:70:07:4c:01:7d:0e:0c:
+                    c9:b1:8a:04:67:af:1b:d5:dd:72:d3:05:8a:d5:12:
+                    0a:d7:d3:e8:d7:db:27:ac:3c:59:8d:8d:0d:6a:bd:
+                    b0:55:73:ea:ba:59:c7:82:d6:1d:26:56:d3:20:c7:
+                    7c:e2:2e:77:93:db:5e:05:dc:ef:03:da:69:db:86:
+                    71:38:ce:c0:f5:91:98:ec:d1:30:3f:5b:6a:f6:62:
+                    29:9f:31:16:67:b1:d1:08:8c:05:db:6f:fd:99:c7:
+                    0b:e0:b6:8e:04:ef:59:51:33:ee:f0:85:86:a4:8e:
+                    fd:70:70:01:91:49:f0:fb:9c:44:99:6b:8b:2b:70:
+                    e5:7f:0b:ae:55:7f:8c:e9:ea:42:30:73:1a:2c:c5:
+                    15:b9
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Subject Key Identifier: 
+                46:50:B7:B3:B3:07:F5:B0:4C:A0:A1:21:38:D3:02:70:8B:75:52:A9
+            X509v3 Authority Key Identifier: 
+                keyid:46:50:B7:B3:B3:07:F5:B0:4C:A0:A1:21:38:D3:02:70:8B:75:52:A9
+                DirName:/O=Hochschule Augsburg/CN=TSGRain Development CA
+                serial:00
+
+            X509v3 Basic Constraints: 
+                CA:TRUE
+    Signature Algorithm: sha256WithRSAEncryption
+         a3:b0:58:c2:c6:13:6d:b5:45:b8:fd:31:21:cb:4f:e0:51:e4:
+         8c:24:c9:bf:c6:f2:73:2e:1c:62:f0:71:dd:88:b2:eb:90:33:
+         12:33:ee:17:f3:3b:28:73:98:34:d9:85:d1:4f:25:a7:e7:51:
+         97:f1:48:b4:48:9e:7c:35:bf:dc:af:5b:8c:93:57:b1:f4:f9:
+         dc:6e:64:cd:83:97:96:51:c4:a3:10:cd:9d:cc:14:ef:dd:8d:
+         89:9e:6c:77:f9:06:26:84:13:e0:58:7b:49:32:48:0b:14:62:
+         c6:5e:6a:55:8d:85:16:ff:98:48:c4:10:03:c4:21:a3:ad:bd:
+         8d:ad:68:d4:1d:49:34:ee:13:07:fd:81:b2:22:67:48:a6:d9:
+         31:ed:e2:be:c8:2d:5e:3f:e4:58:95:b0:53:3e:42:91:f4:39:
+         3e:1c:15:5e:f8:a5:b0:d4:60:ac:ba:70:49:0c:95:96:52:1a:
+         41:6f:60:7c:d4:81:94:d1:db:66:73:07:0e:ed:6b:fa:34:13:
+         1b:24:bd:85:f4:4f:e0:dc:1d:dd:f1:d6:8c:f8:a5:f9:2d:23:
+         6a:7e:af:ca:66:b8:26:d0:dd:44:87:82:83:fa:5e:f6:41:0d:
+         2b:4b:83:34:19:a7:78:d6:9d:39:5f:36:cb:83:7e:2d:3b:86:
+         22:57:dc:c3
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

sources/meta-tsgrain/recipes-core/rauc/files/rauc-grow-data-partition.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Service to grow data partition size
+DefaultDependencies=no
+Before=home.mount
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=/usr/sbin/parted --script /dev/mmcblk0 resizepart 4 100%
+
+[Install]
+WantedBy=home.mount

sources/meta-tsgrain/recipes-core/rauc/files/system.conf

@@ -0,0 +1,16 @@
+[system]
+compatible=TSGRain
+bootloader=uboot
+
+[keyring]
+path=/etc/rauc/ca.cert.pem
+
+[slot.rootfs.0]
+device=/dev/mmcblk0p2
+type=ext4
+bootname=A
+
+[slot.rootfs.1]
+device=/dev/mmcblk0p3
+type=ext4
+bootname=B

sources/meta-tsgrain/recipes-core/rauc/rauc_%.bbappend

@@ -0,0 +1,23 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+SRC_URI:append := "  \
+	file://system.conf \
+	file://ca.cert.pem \
+	file://rauc-grow-data-partition.service \
+"
+
+# additional dependencies required to run RAUC on the target
+RDEPENDS:${PN} += "u-boot-fw-utils u-boot-env"
+
+inherit systemd
+
+SYSTEMD_PACKAGES += "${PN}-grow-data-part"
+SYSTEMD_SERVICE:${PN}-grow-data-part = "rauc-grow-data-partition.service"
+
+PACKAGES += "rauc-grow-data-part"
+
+RDEPENDS:${PN}-grow-data-part += "parted"
+
+do_install:append() {
+	install -d ${D}${systemd_unitdir}/system/
+	install -m 0644 ${WORKDIR}/rauc-grow-data-partition.service ${D}${systemd_unitdir}/system/
+}

sources/meta-tsgrain/recipes-core/udev/files/raspberrypi-rauc.rules

@@ -0,0 +1,4 @@
+/dev/mmcblk0p1
+/dev/mmcblk0p2
+/dev/mmcblk0p3
+/dev/mmcblk0p4

sources/meta-tsgrain/recipes-core/udev/udev-extraconf_%.bbappend

@@ -0,0 +1,6 @@
+FILESEXTRAPATHS:prepend:rpi := "${THISDIR}/files:"
+SRC_URI:append:rpi = " file://raspberrypi-rauc.rules"
+
+do_install:append:rpi() {
+    install -m 0644 ${WORKDIR}/raspberrypi-rauc.rules ${D}${sysconfdir}/udev/mount.blacklist.d/
+}

sources/meta-tsgrain/recipes-dev/opkg/files/opkg.conf

@@ -0,0 +1,34 @@
+# Must have one or more source entries of the form:
+#
+#   src <src-name> <source-url>
+#
+# and one or more destination entries of the form:
+#
+#   dest <dest-name> <target-path>
+#
+# where <src-name> and <dest-names> are identifiers that
+# should match [a-zA-Z0-9._-]+, <source-url> should be a
+# URL that points to a directory containing a Familiar
+# Packages file, and <target-path> should be a directory
+# that exists on the target system.
+
+# Proxy Support
+#option http_proxy http://proxy.tld:3128
+#option ftp_proxy http://proxy.tld:3128
+#option proxy_username <username>
+#option proxy_password <password>
+
+# Enable GPGME signature
+# option check_signature 1
+
+# Offline mode (for use in constructing flash images offline)
+#option offline_root target
+
+# Default destination for installed packages
+dest root /
+
+src/gz all http://thetabook.local/all
+src/gz cortexa7t2hf-neon-vfpv4 http://thetabook.local/cortexa7t2hf-neon-vfpv4
+src/gz raspberrypi3 http://thetabook.local/raspberrypi3
+#src/gz cortexa53 http://thetabook.local/cortexa53
+#src/gz raspberrypi3_64 http://thetabook.local/raspberrypi3_64

sources/meta-tsgrain/recipes-dev/opkg/opkg_%.bbappend

@@ -0,0 +1 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/files:"

sources/meta-tsgrain/recipes-kernel/linux/files/rauc.cfg

@@ -0,0 +1,6 @@
+CONFIG_SQUASHFS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_SQUASHFS_FILE_CACHE=y
+CONFIG_SQUASHFS_DECOMP_SINGLE=y
+CONFIG_SQUASHFS_ZLIB=y
+CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE=3

sources/meta-tsgrain/recipes-kernel/linux/linux-raspberrypi%.bbappend

@@ -0,0 +1,6 @@
+FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
+
+inherit rauc-integration
+
+SRC_URI:append:rauc-integration = " file://rauc.cfg"
+CMDLINE:remove:rauc-integration = "root=/dev/mmcblk0p2"

sources/meta-tsgrain/wic/sdimage-tsgrain.wks

@@ -0,0 +1,4 @@
+part /boot --source bootimg-partition --ondisk mmcblk0 --fstype=vfat --label boot --active --align 4096 --size 100
+part / --source rootfs --ondisk mmcblk0 --fstype=ext4 --label rootfs_A --align 4096
+part / --source rootfs --ondisk mmcblk0 --fstype=ext4 --label rootfs_B --align 4096
+part /app --source rootfs --rootfs-dir=${IMAGE_ROOTFS}/app --ondisk mmcblk0 --fstype=ext4 --label appfs --align 1024 --size 500 --fsoptions "x-systemd.growfs"