From: Scott Branden <scott.branden@broadcom.com>
To: Luis Chamberlain <mcgrof@kernel.org>,
Wolfram Sang <wsa@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
David Brown <david.brown@linaro.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Shuah Khan <shuah@kernel.org>,
bjorn.andersson@linaro.org,
Shuah Khan <skhan@linuxfoundation.org>,
Arnd Bergmann <arnd@arndb.de>
Cc: Mimi Zohar <zohar@linux.ibm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-fsdevel@vger.kernel.org,
BCM Kernel Feedback <bcm-kernel-feedback-list@broadcom.com>,
Olof Johansson <olof@lixom.net>,
Andrew Morton <akpm@linux-foundation.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Colin Ian King <colin.king@canonical.com>,
Kees Cook <keescook@chromium.org>, Takashi Iwai <tiwai@suse.de>,
linux-kselftest@vger.kernel.org, Andy Gross <agross@kernel.org>,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org,
Scott Branden <scott.branden@broadcom.com>
Subject: [PATCH v10 5/9] firmware: test partial file reads of request_partial_firmware_into_buf
Date: Mon, 6 Jul 2020 16:23:05 -0700 [thread overview]
Message-ID: <20200706232309.12010-6-scott.branden@broadcom.com> (raw)
In-Reply-To: <20200706232309.12010-1-scott.branden@broadcom.com>
Add firmware tests for partial file reads of
request_partial_firmware_into_buf.
Signed-off-by: Scott Branden <scott.branden@broadcom.com>
---
.../selftests/firmware/fw_filesystem.sh | 80 +++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index fcc281373b4d..afc2e469ac06 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -149,6 +149,26 @@ config_unset_into_buf()
echo 0 > $DIR/config_into_buf
}
+config_set_buf_size()
+{
+ echo $1 > $DIR/config_buf_size
+}
+
+config_set_file_offset()
+{
+ echo $1 > $DIR/config_file_offset
+}
+
+config_set_partial()
+{
+ echo 1 > $DIR/config_partial
+}
+
+config_unset_partial()
+{
+ echo 0 > $DIR/config_partial
+}
+
config_set_sync_direct()
{
echo 1 > $DIR/config_sync_direct
@@ -207,6 +227,35 @@ read_firmwares()
done
}
+read_partial_firmwares()
+{
+ if [ "$(cat $DIR/config_into_buf)" == "1" ]; then
+ fwfile="${FW_INTO_BUF}"
+ else
+ fwfile="${FW}"
+ fi
+
+ if [ "$1" = "xzonly" ]; then
+ fwfile="${fwfile}-orig"
+ fi
+
+ # Strip fwfile down to match partial offset and length
+ partial_data="$(cat $fwfile)"
+ partial_data="${partial_data:$2:$3}"
+
+ for i in $(seq 0 3); do
+ config_set_read_fw_idx $i
+
+ read_firmware="$(cat $DIR/read_firmware)"
+
+ # Verify the contents are what we expect.
+ if [ $read_firmware != $partial_data ]; then
+ echo "request #$i: partial firmware was not loaded" >&2
+ exit 1
+ fi
+ done
+}
+
read_firmwares_expect_nofile()
{
for i in $(seq 0 3); do
@@ -319,6 +368,21 @@ test_batched_request_firmware_into_buf()
echo "OK"
}
+test_batched_request_partial_firmware_into_buf()
+{
+ echo -n "Batched request_partial_firmware_into_buf() $2 off=$3 size=$4 try #$1: "
+ config_reset
+ config_set_name $TEST_FIRMWARE_INTO_BUF_FILENAME
+ config_set_into_buf
+ config_set_partial
+ config_set_buf_size $4
+ config_set_file_offset $3
+ config_trigger_sync
+ read_partial_firmwares $2 $3 $4
+ release_all_firmware
+ echo "OK"
+}
+
test_batched_request_firmware_direct()
{
echo -n "Batched request_firmware_direct() $2 try #$1: "
@@ -371,6 +435,22 @@ for i in $(seq 1 5); do
test_batched_request_firmware_into_buf $i normal
done
+for i in $(seq 1 5); do
+ test_batched_request_partial_firmware_into_buf $i normal 0 10
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_partial_firmware_into_buf $i normal 0 5
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_partial_firmware_into_buf $i normal 1 6
+done
+
+for i in $(seq 1 5); do
+ test_batched_request_partial_firmware_into_buf $i normal 2 10
+done
+
for i in $(seq 1 5); do
test_batched_request_firmware_direct $i normal
done
--
2.17.1
next prev parent reply other threads:[~2020-07-06 23:24 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-06 23:23 [PATCH v10 0/9] firmware: add request_partial_firmware_into_buf Scott Branden
2020-07-06 23:23 ` [PATCH v10 1/9] fs: move kernel_read_file* to its own include file Scott Branden
2020-07-07 23:40 ` Kees Cook
2020-07-08 3:39 ` Scott Branden
2020-07-06 23:23 ` [PATCH v10 2/9] fs: introduce kernel_pread_file* support Scott Branden
2020-07-07 23:56 ` Kees Cook
2020-07-08 0:24 ` Mimi Zohar
2020-07-08 4:01 ` Scott Branden
2020-07-08 4:41 ` Scott Branden
2020-07-06 23:23 ` [PATCH v10 3/9] firmware: add request_partial_firmware_into_buf Scott Branden
2020-07-07 23:58 ` Kees Cook
2020-07-08 4:07 ` Scott Branden
2020-07-06 23:23 ` [PATCH v10 4/9] test_firmware: add partial read support for request_firmware_into_buf Scott Branden
2020-07-07 23:59 ` Kees Cook
2020-07-08 4:09 ` Scott Branden
2020-07-06 23:23 ` Scott Branden [this message]
2020-07-06 23:23 ` [PATCH v10 6/9] bcm-vk: add bcm_vk UAPI Scott Branden
2020-07-06 23:23 ` [PATCH v10 7/9] misc: bcm-vk: add Broadcom VK driver Scott Branden
2020-07-08 0:03 ` Kees Cook
2020-07-08 4:30 ` Scott Branden
2020-07-06 23:23 ` [PATCH v10 8/9] MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver Scott Branden
2020-07-06 23:23 ` [PATCH v10 9/9] ima: add FIRMWARE_PARTIAL_READ support Scott Branden
2020-07-07 3:08 ` Kees Cook
2020-07-07 17:13 ` Scott Branden
2020-07-07 23:36 ` Kees Cook
2020-07-08 3:35 ` Scott Branden
2020-07-08 4:38 ` [PATCH v10 0/9] firmware: add request_partial_firmware_into_buf Florian Fainelli
2020-07-08 4:51 ` Scott Branden
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