This unit test checks the CalculateCrc32 bootservice and checks the
headers of the system table, the boot services tablle, and the runtime
services table before and after ExitBootServices().
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de>
---
lib/efi_selftest/Makefile | 1 +
lib/efi_selftest/efi_selftest_crc32.c | 141 ++++++++++++++++++++++++++
2 files changed, 142 insertions(+)
create mode 100644 lib/efi_selftest/efi_selftest_crc32.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index d927208700..590f90b16d 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -16,6 +16,7 @@ efi_selftest_bitblt.o \
efi_selftest_config_table.o \
efi_selftest_controllers.o \
efi_selftest_console.o \
+efi_selftest_crc32.o \
efi_selftest_devicepath.o \
efi_selftest_devicepath_util.o \
efi_selftest_events.o \
diff --git a/lib/efi_selftest/efi_selftest_crc32.c
b/lib/efi_selftest/efi_selftest_crc32.c
new file mode 100644
index 0000000000..8555b8f114
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_crc32.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * efi_selftest_crc32
+ *
+ * Copyright (c) 2018 Heinrich Schuchardt <xypron.g...@gmx.de>
+ *
+ * This unit test checks the CalculateCrc32 bootservice and checks the
+ * headers of the system table, the boot services tablle, and the runtime
+ * services table before and after ExitBootServices().
+ */
+
+#include <efi_selftest.h>
+
+const struct efi_system_table *st;
+efi_status_t (EFIAPI *bs_crc32)(const void *data, efi_uintn_t data_size,
+ u32 *crc32);
+
+static int check_table(const void *table)
+{
+ efi_status_t ret;
+ u32 crc32, res;
+ /* Casting from const to not const */
+ struct efi_table_hdr *hdr = (struct efi_table_hdr *)table;
+
+ if (!hdr->signature) {
+ efi_st_error("Missing header signature\n");
+ return EFI_ST_FAILURE;
+ }
+ if (!hdr->revision) {
+ efi_st_error("Missing header revision\n");
+ return EFI_ST_FAILURE;
+ }
+ if (hdr->headersize <= sizeof(struct efi_table_hdr)) {
+ efi_st_error("Incorrect headersize value\n");
+ return EFI_ST_FAILURE;
+ }
+ if (hdr->reserved) {
+ efi_st_error("Reserved header field is not zero\n");
+ return EFI_ST_FAILURE;
+ }
+
+ crc32 = hdr->crc32;
+ /*
+ * Setting the crc32 of the 'const' table to zero is easier than
+ * copying
+ */
+ hdr->crc32 = 0;
+ ret = bs_crc32(table, hdr->headersize, &res);
+ /* Reset table crc32 so it stays constant */
+ hdr->crc32 = crc32;
+ if (ret != EFI_ST_SUCCESS) {
+ efi_st_error("CalculateCrc32 failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (res != crc32) {
+ efi_st_error("Incorrect CRC32\n");
+ // return EFI_ST_FAILURE;
+ }
+ return EFI_ST_SUCCESS;
+}
+
+/*
+ * Setup unit test.
+ *
+ * Check that CalculateCrc32 is working correctly.
+ * Check tables before ExitBootServices().
+ *
+ * @handle: handle of the loaded image
+ * @systable: system table
+ * @return: EFI_ST_SUCCESS for success
+ */
+static int setup(const efi_handle_t handle,
+ const struct efi_system_table *systable)
+{
+ efi_status_t ret;
+ u32 res;
+
+ st = systable;
+ bs_crc32 = systable->boottime->calculate_crc32;
+
+ /* Check that CalculateCrc32 is working */
+ ret = bs_crc32("U-Boot", 6, &res);
+ if (ret != EFI_ST_SUCCESS) {
+ efi_st_error("CalculateCrc32 failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (res != 0x134b0db4) {
+ efi_st_error("Incorrect CRC32\n");
+ return EFI_ST_FAILURE;
+ }
+
+ /* Check tables before ExitBootServices() */
+ if (check_table(st) != EFI_ST_SUCCESS) {
+ efi_st_error("Checking system table\n");
+ return EFI_ST_FAILURE;
+ }
+ if (check_table(st->boottime) != EFI_ST_SUCCESS) {
+ efi_st_error("Checking boottime table\n");
+ return EFI_ST_FAILURE;
+ }
+ if (check_table(st->runtime) != EFI_ST_SUCCESS) {
+ efi_st_error("Checking runtime table\n");
+ return EFI_ST_FAILURE;
+ }
+
+ return EFI_ST_SUCCESS;
+}
+
+/*
+ * Execute unit test
+ *
+ * Check tables after ExitBootServices()
+ *
+ * @return: EFI_ST_SUCCESS for success
+ */
+static int execute(void)
+{
+ if (check_table(st) != EFI_ST_SUCCESS) {
+ efi_st_error("Checking system table\n");
+ return EFI_ST_FAILURE;
+ }
+ if (check_table(st->runtime) != EFI_ST_SUCCESS) {
+ efi_st_error("Checking runtime table\n");
+ return EFI_ST_FAILURE;
+ }
+
+ /*
+ * We cannot call SetVirtualAddressMap() and recheck the runtime
+ * table afterwards because this would invalidate the addresses of the
+ * unit tests.
+ */
+
+ return EFI_ST_SUCCESS;
+}
+
+EFI_UNIT_TEST(crc32) = {
+ .name = "crc32",
+ .phase = EFI_SETUP_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+};
--
2.18.0
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