bcm53xx: properly support sysupgrade using Seama on NAND devices

[openwrt/openwrt.git] / target / linux / bcm53xx / base-files / lib / upgrade / platform.sh

diff --git a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
index bcb9c84e221cf1ccaa28d88a652a79eaaa9780f4..f0a48ddeeca76b92f0cee66a94e40a42adf83925 100644 (file)
--- a/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/bcm53xx/base-files/lib/upgrade/platform.sh
@@ -28,7 +28,9 @@ platform_expected_image() {
                "netgear,r6250v1")      echo "chk U12H245T00_NETGEAR"; return;;
                "netgear,r6300v2")      echo "chk U12H240T00_NETGEAR"; return;;
                "netgear,r7000")        echo "chk U12H270T00_NETGEAR"; return;;
+               "netgear,r7900")        echo "chk U12H315T30_NETGEAR"; return;;
                "netgear,r8000")        echo "chk U12H315T00_NETGEAR"; return;;
+               "netgear,r8500")        echo "chk U12H334T00_NETGEAR"; return;;
        esac
 }
 
@@ -130,22 +132,12 @@ platform_check_image() {
        return $error
 }
 
-platform_pre_upgrade() {
-       export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /usr/bin/oseama /bin/sed"
-
-       local file_type=$(platform_identify "$1")
+# $(1): image for upgrade (with possible extra header)
+# $(2): offset of trx in image
+platform_pre_upgrade_trx() {
        local dir="/tmp/sysupgrade-bcm53xx"
        local trx="$1"
-       local offset
-
-       [ "$(platform_flash_type)" != "nand" ] && return
-
-       # Find trx offset
-       case "$file_type" in
-               "chk")          offset=$((0x$(get_magic_long_at "$1" 4)));;
-               "cybertan")     offset=32;;
-               "seama")        return;;
-       esac
+       local offset="$2"
 
        # Extract partitions from trx
        rm -fR $dir
@@ -205,6 +197,69 @@ platform_pre_upgrade() {
        nand_do_upgrade /tmp/root.ubi
 }
 
+platform_pre_upgrade_seama() {
+       local dir="/tmp/sysupgrade-bcm53xx"
+       local seama="$1"
+       local tmp
+
+       # Extract Seama entity from Seama seal
+       rm -fR $dir
+       mkdir -p $dir
+       oseama extract "$seama" \
+               -e 0 \
+               -o $dir/seama.entity
+       [ $? -ne 0 ] && {
+               echo "Failed to extract Seama entity."
+               return
+       }
+       local entity_size=$(wc -c $dir/seama.entity | cut -d ' ' -f 1)
+
+       local ubi_offset=0
+       tmp=0
+       while [ 1 ]; do
+               [ $tmp -ge $entity_size ] && break
+               [ "$(dd if=$dir/seama.entity skip=$tmp bs=1 count=4 2>/dev/null)" = "UBI#" ] && {
+                       ubi_offset=$tmp
+                       break
+               }
+               tmp=$(($tmp + 131072))
+       done
+       [ $ubi_offset -eq 0 ] && {
+               echo "Failed to find UBI in Seama entity."
+               return
+       }
+
+       local ubi_length=0
+       while [ "$(dd if=$dir/seama.entity skip=$(($ubi_offset + $ubi_length)) bs=1 count=4 2>/dev/null)" = "UBI#" ]; do
+               ubi_length=$(($ubi_length + 131072))
+       done
+
+       dd if=$dir/seama.entity of=$dir/kernel.seama bs=131072 count=$(($ubi_offset / 131072)) 2>/dev/null
+       dd if=$dir/seama.entity of=$dir/root.ubi bs=131072 skip=$(($ubi_offset / 131072)) count=$(($ubi_length / 131072)) 2>/dev/null
+
+       # Flash
+       local kernel_size=$(sed -n 's/mtd[0-9]*: \([0-9a-f]*\).*"\(kernel\|linux\)".*/\1/p' /proc/mtd)
+       mtd write $dir/kernel.seama firmware
+       mtd ${kernel_size:+-c 0x$kernel_size} fixseama firmware
+       nand_do_upgrade $dir/root.ubi
+}
+
+platform_pre_upgrade() {
+       export RAMFS_COPY_BIN="${RAMFS_COPY_BIN} /usr/bin/oseama /bin/sed"
+
+       local file_type=$(platform_identify "$1")
+
+       [ "$(platform_flash_type)" != "nand" ] && return
+
+       # Find trx offset
+       case "$file_type" in
+               "chk")          platform_pre_upgrade_trx "$1" $((0x$(get_magic_long_at "$1" 4)));;
+               "cybertan")     platform_pre_upgrade_trx "$1" 32;;
+               "seama")        platform_pre_upgrade_seama "$1";;
+               "trx")          platform_pre_upgrade_trx "$1";;
+       esac
+}
+
 platform_trx_from_chk_cmd() {
        local header_len=$((0x$(get_magic_long_at "$1" 4)))