tests/test_tpm2_partial_reads

   1 #!/usr/bin/env bash
   2
   3 # For the license, see the LICENSE file in the root directory.
   4 # set -x
   5
   6 cd $(dirname "$0")
   7
   8 ROOT=${abs_top_builddir:-$(pwd)/..}
   9
  10 export SWTPM_INTERFACE=cuse
  11
  12 VTPM_NAME="vtpm-test-tpm2-partial-reads"
  13 SWTPM_DEV_NAME="/dev/${VTPM_NAME}"
  14 export TPM_PATH="$(mktemp -d)" || exit 1
  15 CMD_PATH="${TPM_PATH}/cmd"
  16
  17 function cleanup()
  18 {
  19         pid=${SWTPM_PID}
  20         if [ -n "$pid" ]; then
  21                 kill_quiet -9 $pid
  22         fi
  23         rm -rf $TPM_PATH
  24 }
  25
  26 function swtpm_read_n_bytes_fd100()
  27 {
  28         dd bs=1 count=$1 if=/proc/self/fd/100 2>/dev/null | \
  29                 od -t x1 -A n | \
  30                 tr -s ' ' | \
  31                 tr -d '\n' | \
  32                 sed 's/ $//g'
  33 }
  34
  35 trap "cleanup" EXIT
  36
  37 [ "${SWTPM_INTERFACE}" == "cuse" ] && source test_cuse
  38 source common
  39 skip_test_no_tpm20 "${SWTPM_EXE}"
  40
  41 run_swtpm ${SWTPM_INTERFACE} --tpm2
  42
  43 kill_quiet -0 ${SWTPM_PID}
  44 if [ $? -ne 0 ]; then
  45         echo "Error: ${SWTPM_INTERFACE} TPM did not start."
  46         exit 1
  47 fi
  48
  49 # Init the TPM
  50 run_swtpm_ioctl ${SWTPM_INTERFACE} -i
  51 if [ $? -ne 0 ]; then
  52         echo "Error: Could not initialize the ${SWTPM_INTERFACE} TPM."
  53         exit 1
  54 fi
  55
  56 kill_quiet -0 ${SWTPM_PID} 2>/dev/null
  57 if [ $? -ne 0 ]; then
  58         echo "Error: ${SWTPM_INTERFACE} TPM not running anymore after INIT."
  59         exit 1
  60 fi
  61
  62 # Prepare the TPM2_Startup
  63 echo -en '\x80\x01\x00\x00\x00\x0c\x00\x00\x01\x44\x00\x00' > "${CMD_PATH}"
  64
  65 swtpm_open_cmddev ${SWTPM_INTERFACE} 100
  66
  67 # Startup the TPM2
  68 cat "${CMD_PATH}" >&100
  69
  70 # Read 4 and then 6 bytes of the response
  71 res1=$(swtpm_read_n_bytes_fd100 4)
  72 exp1=' 80 01 00 00'
  73 if [ "$res1" != "$exp1" ]; then
  74         echo "1st Startup: Unexpected 1st response part"
  75         echo "Expected: $exp1"
  76         echo "Actual  : $res1"
  77         exit 1
  78 fi
  79
  80 res2=$(swtpm_read_n_bytes_fd100 6)
  81 exp2=' 00 0a 00 00 00 00'
  82 if [ "$res2" != "$exp2" ]; then
  83         echo "1st Startup: Unexpected 2nd response part"
  84         echo "Expected: $exp2"
  85         echo "Actual  : $res2"
  86         exit 1
  87 fi
  88
  89 # Startup the TPM2 again (will fail, but that's ok)
  90 cat "${CMD_PATH}" >&100
  91
  92 # Read 4 and then only 4 bytes of the response
  93 res1=$(swtpm_read_n_bytes_fd100 4)
  94 exp1=' 80 01 00 00'
  95 if [ "$res1" != "$exp1" ]; then
  96         echo "2nd Startup: Unexpected 1st response part"
  97         echo "Expected: $exp1"
  98         echo "Actual  : $res1"
  99         exit 1
 100 fi
 101
 102 res2=$(swtpm_read_n_bytes_fd100 4)
 103 exp2=' 00 0a 00 00'
 104 if [ "$res2" != "$exp2" ]; then
 105         echo "2nd Startup: Unexpected 2nd part"
 106         echo "Expected: $exp2"
 107         echo "Actual  : $res2"
 108         exit 1
 109 fi
 110
 111 # Startup the TPM2 again (will fail, but that's ok)
 112 cat "${CMD_PATH}" >&100
 113
 114 # Read 4 and then 6 bytes of the response
 115 res1=$(swtpm_read_n_bytes_fd100 4)
 116 exp1=' 80 01 00 00'
 117 if [ "$res1" != "$exp1" ]; then
 118         echo "3rd Startup: Unexpected 1st response part"
 119         echo "Expected: $exp1"
 120         echo "Actual  : $res1"
 121         exit 1
 122 fi
 123
 124 res2=$(swtpm_read_n_bytes_fd100 6)
 125 exp2=' 00 0a 00 00 01 00'
 126 if [ "$res2" != "$exp2" ]; then
 127         echo "3rd Startup: Unexpected 2nd part"
 128         echo "Expected: $exp2"
 129         echo "Actual  : $res2"
 130         exit 1
 131 fi
 132
 133
 134 run_swtpm_ioctl ${SWTPM_INTERFACE} -s
 135 if [ $? -ne 0 ]; then
 136         echo "Error: Could not shut down the ${SWTPM_INTERFACE} TPM."
 137         exit 1
 138 fi
 139
 140 if wait_process_gone ${SWTPM_PID} 4; then
 141         echo "Error: ${SWTPM_INTERFACE} TPM should not be running anymore."
 142         exit 1
 143 fi
 144
 145 if [ ! -e $STATE_FILE ]; then
 146         echo "Error: TPM state file $STATE_FILE does not exist."
 147         exit 1
 148 fi
 149
 150 echo "OK"
 151
 152 exit 0