package/base-files/files/usr/libexec/validate_firmware_image

   1 #!/bin/sh
   2
   3 . /lib/functions.sh
   4 . /lib/functions/system.sh
   5 . /usr/share/libubox/jshn.sh
   6
   7 include /lib/upgrade
   8
   9 VALID=1
  10 FORCEABLE=1
  11 ALLOW_BACKUP=1
  12
  13 # Mark image as invalid but still possible to install
  14 notify_firmware_invalid() {
  15         VALID=0
  16 }
  17
  18 # Mark image as broken (impossible to install)
  19 notify_firmware_broken() {
  20         VALID=0
  21         FORCEABLE=0
  22 }
  23
  24 # Mark image as incompatible with preserving a backup
  25 notify_firmware_no_backup() {
  26         ALLOW_BACKUP=0
  27 }
  28
  29 # Add result of validation test
  30 notify_firmware_test_result() {
  31         local old_ns
  32
  33         json_set_namespace validate_firmware_image old_ns
  34         json_add_boolean "$1" "$2"
  35         json_set_namespace $old_ns
  36 }
  37
  38 err_to_bool() {
  39         [ "$1" -ne 0 ] && echo 0 || echo 1
  40 }
  41
  42 fwtool_check_signature "$1" >&2
  43 FWTOOL_SIGNATURE=$?
  44 [ "$FWTOOL_SIGNATURE" -ne 0 ] && notify_firmware_invalid
  45
  46 fwtool_check_image "$1" >&2
  47 FWTOOL_DEVICE_MATCH=$?
  48 [ "$FWTOOL_DEVICE_MATCH" -ne 0 ] && notify_firmware_invalid
  49
  50 json_set_namespace validate_firmware_image old_ns
  51 json_init
  52         json_add_object "tests"
  53                 json_add_boolean fwtool_signature "$(err_to_bool $FWTOOL_SIGNATURE)"
  54                 json_add_boolean fwtool_device_match "$(err_to_bool $FWTOOL_DEVICE_MATCH)"
  55
  56                 # Call platform_check_image() here so it can add its test
  57                 # results and still mark image properly.
  58                 json_set_namespace $old_ns
  59                 platform_check_image "$1" >&2 || notify_firmware_invalid
  60                 json_set_namespace validate_firmware_image old_ns
  61         json_close_object
  62         json_add_boolean valid "$VALID"
  63         json_add_boolean forceable "$FORCEABLE"
  64         json_add_boolean allow_backup "$ALLOW_BACKUP"
  65 json_dump -i
  66 json_set_namespace $old_ns