tools/testing/selftests/efivarfs/efivarfs.sh

   1 #!/bin/bash
   2
   3 efivarfs_mount=/sys/firmware/efi/efivars
   4 test_guid=210be57c-9849-4fc7-a635-e6382d1aec27
   5
   6 check_prereqs()
   7 {
   8         local msg="skip all tests:"
   9
  10         if [ $UID != 0 ]; then
  11                 echo $msg must be run as root >&2
  12                 exit 0
  13         fi
  14
  15         if ! grep -q "^\S\+ $efivarfs_mount efivarfs" /proc/mounts; then
  16                 echo $msg efivarfs is not mounted on $efivarfs_mount >&2
  17                 exit 0
  18         fi
  19 }
  20
  21 run_test()
  22 {
  23         local test="$1"
  24
  25         echo "--------------------"
  26         echo "running $test"
  27         echo "--------------------"
  28
  29         if [ "$(type -t $test)" = 'function' ]; then
  30                 ( $test )
  31         else
  32                 ( ./$test )
  33         fi
  34
  35         if [ $? -ne 0 ]; then
  36                 echo "  [FAIL]"
  37                 rc=1
  38         else
  39                 echo "  [PASS]"
  40         fi
  41 }
  42
  43 test_create()
  44 {
  45         local attrs='\x07\x00\x00\x00'
  46         local file=$efivarfs_mount/$FUNCNAME-$test_guid
  47
  48         printf "$attrs\x00" > $file
  49
  50         if [ ! -e $file ]; then
  51                 echo "$file couldn't be created" >&2
  52                 exit 1
  53         fi
  54
  55         if [ $(stat -c %s $file) -ne 5 ]; then
  56                 echo "$file has invalid size" >&2
  57                 exit 1
  58         fi
  59 }
  60
  61 test_delete()
  62 {
  63         local attrs='\x07\x00\x00\x00'
  64         local file=$efivarfs_mount/$FUNCNAME-$test_guid
  65
  66         printf "$attrs\x00" > $file
  67
  68         if [ ! -e $file ]; then
  69                 echo "$file couldn't be created" >&2
  70                 exit 1
  71         fi
  72
  73         rm $file
  74
  75         if [ -e $file ]; then
  76                 echo "$file couldn't be deleted" >&2
  77                 exit 1
  78         fi
  79
  80 }
  81
  82 # test that we can remove a variable by issuing a write with only
  83 # attributes specified
  84 test_zero_size_delete()
  85 {
  86         local attrs='\x07\x00\x00\x00'
  87         local file=$efivarfs_mount/$FUNCNAME-$test_guid
  88
  89         printf "$attrs\x00" > $file
  90
  91         if [ ! -e $file ]; then
  92                 echo "$file does not exist" >&2
  93                 exit 1
  94         fi
  95
  96         printf "$attrs" > $file
  97
  98         if [ -e $file ]; then
  99                 echo "$file should have been deleted" >&2
 100                 exit 1
 101         fi
 102 }
 103
 104 test_open_unlink()
 105 {
 106         local file=$efivarfs_mount/$FUNCNAME-$test_guid
 107         ./open-unlink $file
 108 }
 109
 110 check_prereqs
 111
 112 rc=0
 113
 114 run_test test_create
 115 run_test test_delete
 116 run_test test_zero_size_delete
 117 run_test test_open_unlink
 118
 119 exit $rc