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_create_empty()
  62 {
  63         local file=$efivarfs_mount/$FUNCNAME-$test_guid
  64
  65         : > $file
  66
  67         if [ ! -e $file ]; then
  68                 echo "$file can not be created without writing" >&2
  69                 exit 1
  70         fi
  71 }
  72
  73 test_delete()
  74 {
  75         local attrs='\x07\x00\x00\x00'
  76         local file=$efivarfs_mount/$FUNCNAME-$test_guid
  77
  78         printf "$attrs\x00" > $file
  79
  80         if [ ! -e $file ]; then
  81                 echo "$file couldn't be created" >&2
  82                 exit 1
  83         fi
  84
  85         rm $file
  86
  87         if [ -e $file ]; then
  88                 echo "$file couldn't be deleted" >&2
  89                 exit 1
  90         fi
  91
  92 }
  93
  94 # test that we can remove a variable by issuing a write with only
  95 # attributes specified
  96 test_zero_size_delete()
  97 {
  98         local attrs='\x07\x00\x00\x00'
  99         local file=$efivarfs_mount/$FUNCNAME-$test_guid
 100
 101         printf "$attrs\x00" > $file
 102
 103         if [ ! -e $file ]; then
 104                 echo "$file does not exist" >&2
 105                 exit 1
 106         fi
 107
 108         printf "$attrs" > $file
 109
 110         if [ -e $file ]; then
 111                 echo "$file should have been deleted" >&2
 112                 exit 1
 113         fi
 114 }
 115
 116 test_open_unlink()
 117 {
 118         local file=$efivarfs_mount/$FUNCNAME-$test_guid
 119         ./open-unlink $file
 120 }
 121
 122 check_prereqs
 123
 124 rc=0
 125
 126 run_test test_create
 127 run_test test_create_empty
 128 run_test test_delete
 129 run_test test_zero_size_delete
 130 run_test test_open_unlink
 131
 132 exit $rc