From 5999ea20fa42e78f872720ec3d0ee1d8df1a1f40 Mon Sep 17 00:00:00 2001 From: Eddie James Date: Tue, 24 Oct 2023 10:43:51 -0500 Subject: [PATCH] test: Add sandbox TPM boot measurement Use the sandbox TPM driver to measure some boot images in a unit test case. Signed-off-by: Eddie James Reviewed-by: Simon Glass Acked-by: Ilias Apalodimas Signed-off-by: Ilias Apalodimas --- arch/sandbox/dts/sandbox.dtsi | 13 +++++++ arch/sandbox/dts/test.dts | 13 +++++++ configs/sandbox_defconfig | 1 + include/test/suites.h | 1 + test/boot/Makefile | 1 + test/boot/measurement.c | 66 +++++++++++++++++++++++++++++++++++ test/cmd_ut.c | 4 +++ 7 files changed, 99 insertions(+) create mode 100644 test/boot/measurement.c diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi index ff7e5584c5..241f397ba6 100644 --- a/arch/sandbox/dts/sandbox.dtsi +++ b/arch/sandbox/dts/sandbox.dtsi @@ -4,11 +4,23 @@ * and sandbox64 builds. */ +#include #include #define USB_CLASS_HUB 9 / { + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + event_log: tcg_event_log { + no-map; + reg = <(CFG_SYS_SDRAM_SIZE - 0x2000) 0x2000>; + }; + }; + binman { }; @@ -342,6 +354,7 @@ tpm2 { compatible = "sandbox,tpm2"; + memory-region = <&event_log>; }; triangle { diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index 9a863ea732..bb2ddd9bf2 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -9,6 +9,7 @@ /dts-v1/; +#include #include #include #include @@ -68,6 +69,17 @@ osd0 = "/osd"; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + event_log: tcg_event_log { + no-map; + reg = <(CFG_SYS_SDRAM_SIZE - 0x2000) 0x2000>; + }; + }; + binman: binman { }; @@ -1422,6 +1434,7 @@ tpm2 { compatible = "sandbox,tpm2"; + memory-region = <&event_log>; }; tpm { diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig index d667cb9ae4..6e32649bc7 100644 --- a/configs/sandbox_defconfig +++ b/configs/sandbox_defconfig @@ -348,4 +348,5 @@ CONFIG_TEST_FDTDEC=y CONFIG_UNIT_TEST=y CONFIG_UT_TIME=y CONFIG_UT_DM=y +CONFIG_MEASURED_BOOT=y CONFIG_ARM_FFA_TRANSPORT=y diff --git a/include/test/suites.h b/include/test/suites.h index 1c7dc65966..48ed549c13 100644 --- a/include/test/suites.h +++ b/include/test/suites.h @@ -45,6 +45,7 @@ int do_ut_font(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ut_lib(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ut_loadm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ut_log(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]); +int do_ut_measurement(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]); int do_ut_mem(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ut_optee(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ut_overlay(struct cmd_tbl *cmdtp, int flag, int argc, diff --git a/test/boot/Makefile b/test/boot/Makefile index 52947580ae..068522cb9e 100644 --- a/test/boot/Makefile +++ b/test/boot/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_BOOTSTD) += bootdev.o bootstd_common.o bootflow.o bootmeth.o obj-$(CONFIG_FIT) += image.o +obj-$(CONFIG_MEASURED_BOOT) += measurement.o obj-$(CONFIG_EXPO) += expo.o obj-$(CONFIG_CEDIT) += cedit.o diff --git a/test/boot/measurement.c b/test/boot/measurement.c new file mode 100644 index 0000000000..9db2ed324c --- /dev/null +++ b/test/boot/measurement.c @@ -0,0 +1,66 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Test for measured boot functions + * + * Copyright 2023 IBM Corp. + * Written by Eddie James + */ + +#include +#include +#include +#include +#include +#include +#include + +#define MEASUREMENT_TEST(_name, _flags) \ + UNIT_TEST(_name, _flags, measurement_test) + +static int measure(struct unit_test_state *uts) +{ + struct bootm_headers images; + const size_t size = 1024; + u8 *kernel; + u8 *initrd; + size_t i; + + kernel = malloc(size); + initrd = malloc(size); + + images.os.image_start = map_to_sysmem(kernel); + images.os.image_len = size; + + images.rd_start = map_to_sysmem(initrd); + images.rd_end = images.rd_start + size; + + images.ft_addr = malloc(size); + images.ft_len = size; + + env_set("bootargs", "measurement testing"); + + for (i = 0; i < size; ++i) { + kernel[i] = 0xf0 | (i & 0xf); + initrd[i] = (i & 0xf0) | 0xf; + images.ft_addr[i] = i & 0xff; + } + + ut_assertok(bootm_measure(&images)); + + free(images.ft_addr); + free(initrd); + free(kernel); + + return 0; +} +MEASUREMENT_TEST(measure, 0); + +int do_ut_measurement(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + struct unit_test *tests = UNIT_TEST_SUITE_START(measurement_test); + const int n_ents = UNIT_TEST_SUITE_COUNT(measurement_test); + + return cmd_ut_category("measurement", "measurement_test_", tests, + n_ents, argc, argv); +} diff --git a/test/cmd_ut.c b/test/cmd_ut.c index 0f56409e80..e87adcb71e 100644 --- a/test/cmd_ut.c +++ b/test/cmd_ut.c @@ -99,6 +99,10 @@ static struct cmd_tbl cmd_ut_sub[] = { #if CONFIG_IS_ENABLED(UT_UNICODE) && !defined(API_BUILD) U_BOOT_CMD_MKENT(unicode, CONFIG_SYS_MAXARGS, 1, do_ut_unicode, "", ""), #endif +#ifdef CONFIG_MEASURED_BOOT + U_BOOT_CMD_MKENT(measurement, CONFIG_SYS_MAXARGS, 1, do_ut_measurement, + "", ""), +#endif #ifdef CONFIG_SANDBOX U_BOOT_CMD_MKENT(compression, CONFIG_SYS_MAXARGS, 1, do_ut_compression, "", ""), -- 2.39.5