Create, save and load trusted keys test
Signed-off-by: Mimi Zohar zohar@linux.ibm.com
Change log v1: - Replace the directions for using Trousers to take ownership of the TPM with directions for using the IBM TSS. - Differentiate between different types of errors. Recent bug is causing "add_key: Timer expired". --- tools/testing/selftests/tpm2/Makefile | 2 +- tools/testing/selftests/tpm2/test_trustedkeys.sh | 109 +++++++++++++++++++++++ 2 files changed, 110 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/tpm2/test_trustedkeys.sh
diff --git a/tools/testing/selftests/tpm2/Makefile b/tools/testing/selftests/tpm2/Makefile index 1a5db1eb8ed5..055bf62510b5 100644 --- a/tools/testing/selftests/tpm2/Makefile +++ b/tools/testing/selftests/tpm2/Makefile @@ -1,5 +1,5 @@ # SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) include ../lib.mk
-TEST_PROGS := test_smoke.sh test_space.sh +TEST_PROGS := test_smoke.sh test_space.sh test_trustedkey.sh TEST_PROGS_EXTENDED := tpm2.py tpm2_tests.py diff --git a/tools/testing/selftests/tpm2/test_trustedkeys.sh b/tools/testing/selftests/tpm2/test_trustedkeys.sh new file mode 100755 index 000000000000..dc7df7467670 --- /dev/null +++ b/tools/testing/selftests/tpm2/test_trustedkeys.sh @@ -0,0 +1,109 @@ +#!/bin/sh + +VERBOSE="${VERBOSE:-1}" +TRUSTEDKEY1="$(mktemp -u XXXX).blob" +TRUSTEDKEY2="$(mktemp -u XXXX).blob" +ERRMSG="$(mktemp -u XXXX)" +trap "echo PRETRAP" SIGINT SIGTERM SIGTSTP +trap "{ rm -f $TRUSTEDKEY1 $TRUSTEDKEY2 $ERRMSG; }" EXIT + +log_info() +{ + [ $VERBOSE -ne 0 ] && echo "[INFO] $1" +} + +# The ksefltest framework requirement returns 0 for PASS. +log_pass() +{ + [ $VERBOSE -ne 0 ] && echo "$1 [PASS]" + exit 0 +} + +# The ksefltest framework requirement returns 1 for FAIL. +log_fail() +{ + [ $VERBOSE -ne 0 ] && echo "$1 [FAIL]" + exit 1 +} + +# The ksefltest framework requirement returns 4 for SKIP. +log_skip() +{ + [ $VERBOSE -ne 0 ] && echo "$1" + exit 4 +} + +is_tpm1() +{ + local pcrs_path="/sys/class/tpm/tpm0/device/pcrs" + if [ ! -f "$pcrs_path" ]; then + pcrs_path="/sys/class/misc/tpm0/device/pcrs" + fi + + if [ ! -f "$pcrs_path" ]; then + log_skip "TPM 1.2 chip not found" + fi +} + +takeownership_info() +{ + log_info "creating trusted key failed, probably requires taking TPM ownership:" + which tss1oiap > /dev/null 2>&1 || \ + log_info " tss1oiap not found, install IBM TSS" + + log_info " export TPM_DEVICE=/dev/tpm0" + log_info " export TPM_ENCRYPT_SESSIONS=0" + + log_info " OIAP=$(tss1oiap | cut -d' ' -f 2)" + log_info " tss1takeownership -se0 $OIAP 0" + log_fail "creating trusted key" +} + +test_trustedkey() +{ + #local keyid="$(keyctl add trusted kmk-test "new 64" @u)" &> $ERRMSG + local keyid="$(keyctl add trusted kmk-test "new 64" @u 2> $ERRMSG)" + + grep -E -q "add_key: Operation not permitted" $ERRMSG + if [ $? -eq 0 ]; then + takeownership_info + fi + + grep -E -q "add_key: " $ERRMSG + if [ $? -eq 0 ]; then + log_info "`cat ${ERRMSG}`" + log_fail "creating trusted key" + fi + + if [ -z "$keyid" ]; then + log_fail "creating trusted key failed" + fi + log_info "creating trusted key succeeded" + + # save newly created trusted key and remove from keyring + keyctl pipe "$keyid" > "$TRUSTEDKEY1" + keyctl unlink "$keyid" &> /dev/null + + keyid=$(keyctl add trusted kmk-test "load `cat $TRUSTEDKEY1`" @u) + if [ $? -eq 0 ]; then + log_info "loading trusted key succeeded" + else + log_fail "loading trusted key failed" + fi + + # save loaded trusted key and remove from keyring again + keyctl pipe "$keyid" > "$TRUSTEDKEY2" + keyctl unlink "$keyid" &> /dev/null + + # compare trusted keys + diff "$TRUSTEDKEY1" "$TRUSTEDKEY2" &> /dev/null + ret=$? + if [ $ret -eq 0 ]; then + log_pass "trusted key test succeeded" + else + log_fail "trusted key test failed" + fi +} + +is_tpm1 +test_trustedkey