diff options
Diffstat (limited to 'tests/futility/test_gbb_utility.sh')
| -rwxr-xr-x | tests/futility/test_gbb_utility.sh | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/futility/test_gbb_utility.sh b/tests/futility/test_gbb_utility.sh index 26e5ef1a..3d8e576b 100755 --- a/tests/futility/test_gbb_utility.sh +++ b/tests/futility/test_gbb_utility.sh @@ -201,6 +201,33 @@ cat ${TMP}.blob | ${REPLACE} 0x2c 0x00 > ${TMP}.blob.bad ${FUTILITY} gbb_utility -g --recoverykey ${TMP}.read2 ${TMP}.blob.bad if ${FUTILITY} gbb_utility -s --recoverykey ${TMP}.data2 ${TMP}.blob.bad; then false; fi + +# GBB v1.2 adds a sha256 digest field in what was previously padding: +# +# hwid_digest: 0x0030 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx +# 0x0040 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx +# pad: 0x0050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +# 0x0060 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +# 0x0070 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +# (HWID) 0x0080 30 31 32 33 34 35 36 37 38 39 41 42 43 44 45 00 + +# See that the digest is updated properly. +hwid="123456789ABCDEF" +${FUTILITY} gbb_utility -s -i ${hwid} ${TMP}.blob +expect=$(echo -n "$hwid" | sha256sum | cut -d ' ' -f 1) +[ $(echo -n ${expect} | wc -c) == "64" ] +${FUTILITY} gbb_utility -g --digest ${TMP}.blob | grep ${expect} + +# Garble the digest, see that it's noticed. +# (assuming these zeros aren't present) +cat ${TMP}.blob | ${REPLACE} 0x33 0x00 0x00 0x00 0x00 0x00 > ${TMP}.blob.bad +${FUTILITY} gbb_utility -g --digest ${TMP}.blob.bad | grep '0000000000' +${FUTILITY} gbb_utility -g --digest ${TMP}.blob.bad | grep 'invalid' + +# Garble the HWID. The digest is unchanged, but now invalid. +cat ${TMP}.blob | ${REPLACE} 0x84 0x70 0x71 0x72 > ${TMP}.blob.bad +${FUTILITY} gbb_utility -g --digest ${TMP}.blob.bad | grep 'invalid' + # cleanup rm -f ${TMP}* exit 0 |