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[76.251.165.188]) by smtp.gmail.com with ESMTPSA id 187sm707041oie.42.2020.09.03.14.00.58 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 03 Sep 2020 14:00:58 -0700 (PDT) From: Michael Roth To: qemu-devel@nongnu.org Subject: [PATCH 58/77] tests: tpm: Skip over pcrUpdateCounter byte in result comparison Date: Thu, 3 Sep 2020 15:59:16 -0500 Message-Id: <20200903205935.27832-59-mdroth@linux.vnet.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200903205935.27832-1-mdroth@linux.vnet.ibm.com> References: <20200903205935.27832-1-mdroth@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::244; envelope-from=flukshun@gmail.com; helo=mail-oi1-x244.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Stefan Berger , qemu-stable@nongnu.org, Stefan Berger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Stefan Berger The TPM 2 code in libtpms was fixed to handle the PCR 'TCB group' according to the PCClient profile. The change of the PCRs belonging to the 'TCB group' now affects the pcrUpdateCounter in the TPM2_PCRRead() responses where its value is now different (typically lower by '1') than what it was before. To not fail the tests, we skip the comparison of the 14th byte, which represents the pcrUpdateCounter. Signed-off-by: Stefan Berger Reviewed-by: Marc-André Lureau Message-id: 20200707201625.4177419-3-stefanb@linux.vnet.ibm.com (cherry picked from commit df8a7568932e4c3c930fdfeb228dd72b4bb71a1f) Signed-off-by: Michael Roth --- tests/qtest/tpm-util.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tests/qtest/tpm-util.c b/tests/qtest/tpm-util.c index 34efae8f18..58a9593745 100644 --- a/tests/qtest/tpm-util.c +++ b/tests/qtest/tpm-util.c @@ -139,7 +139,11 @@ void tpm_util_pcrread(QTestState *s, tx_func *tx, tx(s, tpm_pcrread, sizeof(tpm_pcrread), buffer, sizeof(buffer)); - g_assert_cmpmem(buffer, exp_resp_size, exp_resp, exp_resp_size); + /* skip pcrUpdateCounter (14th byte) in comparison */ + g_assert(exp_resp_size >= 15); + g_assert_cmpmem(buffer, 13, exp_resp, 13); + g_assert_cmpmem(&buffer[14], exp_resp_size - 14, + &exp_resp[14], exp_resp_size - 14); } bool tpm_util_swtpm_has_tpm2(void) -- 2.17.1