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[79.136.22.50]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b1fcfe888bcsm140703166b.71.2025.09.18.00.45.12 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 18 Sep 2025 00:45:12 -0700 (PDT) From: Tobias Waldekranz To: barebox@lists.infradead.org Date: Thu, 18 Sep 2025 09:43:18 +0200 Message-ID: <20250918074455.891780-9-tobias@waldekranz.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250918074455.891780-1-tobias@waldekranz.com> References: <20250918074455.891780-1-tobias@waldekranz.com> MIME-Version: 1.0 Organization: Wires Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250918_004514_917617_311DD49D X-CRM114-Status: GOOD ( 10.53 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, RCVD_IN_DNSWL_LOW,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 08/11] ci: pytest: Generate test data for dm-verity X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Create a small FAT fs with a couple of files, and the corresponding hash tree. Then create a modified copy that we can use to make sure that errors are detected. Signed-off-by: Tobias Waldekranz --- scripts/generate_testfs.sh | 44 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/scripts/generate_testfs.sh b/scripts/generate_testfs.sh index 3c200bd401..1c358ff846 100755 --- a/scripts/generate_testfs.sh +++ b/scripts/generate_testfs.sh @@ -28,3 +28,47 @@ generate_fit() ${KBUILD_OUTPUT}/testfs/barebox-gzipped.fit } [ -f .github/testfs/${KBUILD_DEFCONFIG}-gzipped.its ] && generate_fit + +alias pad128k="dd if=/dev/zero bs=128k count=1 status=none" + +generate_dm_verity() +{ + work=$(mktemp -d) + cd ${work} + + # Create two dummy files; use lots of padding to make sure that + # when we alter the contents of 'english' in root-bad, 'latin' is + # still be readable, as their contents wont (a) share the same + # hash block and (b) the block cache layer won't accedentally read + # the invalid block. + + pad128k >latin + echo -n "veritas vos liberabit" >>latin + pad128k >>latin + + pad128k >english + echo -n "truth will set you free" >>english + pad128k >>english + + truncate -s 1M good.fat + mkfs.vfat good.fat + mcopy -i good.fat latin english :: + + veritysetup format \ + --root-hash-file=good.hash \ + good.fat good.verity + + sed 's/truth will set you free/LIAR LIAR PANTS ON FIRE/' \ + bad.fat + + cd - + cp \ + ${work}/good.fat \ + ${work}/good.verity \ + ${work}/good.hash \ + ${work}/bad.fat \ + ${KBUILD_OUTPUT}/testfs + + rm -rf ${work} +} +generate_dm_verity -- 2.43.0