[U-Boot] [PATCH 1/1] efi_selftest: unit test for OpenProtocolInformation()
Heinrich Schuchardt
xypron.glpk at gmx.de
Sat Jun 1 19:09:46 UTC 2019
Provide a unit test that checks that the open protocol information is
correctly updated when opening and closing protocols.
Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
lib/efi_selftest/Makefile | 1 +
lib/efi_selftest/efi_selftest_open_protocol.c | 205 ++++++++++++++++++
2 files changed, 206 insertions(+)
create mode 100644 lib/efi_selftest/efi_selftest_open_protocol.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index b032154147..3bebd0f573 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -26,6 +26,7 @@ efi_selftest_gop.o \
efi_selftest_loaded_image.o \
efi_selftest_manageprotocols.o \
efi_selftest_memory.o \
+efi_selftest_open_protocol.o \
efi_selftest_register_notify.o \
efi_selftest_snp.o \
efi_selftest_textinput.o \
diff --git a/lib/efi_selftest/efi_selftest_open_protocol.c b/lib/efi_selftest/efi_selftest_open_protocol.c
new file mode 100644
index 0000000000..e3f351df72
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_open_protocol.c
@@ -0,0 +1,205 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * efi_selftest_open_protocol
+ *
+ * Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk at gmx.de>
+ *
+ * This unit test checks that open protocol information is correctly updated
+ * when calling:
+ * HandleProtocol, OpenProtocol, OpenProtocolInformation, CloseProtocol.
+ */
+
+#include <efi_selftest.h>
+
+/*
+ * The test currently does not actually call the interface function.
+ * So this is just a dummy structure.
+ */
+struct interface {
+ void (EFIAPI *inc)(void);
+};
+
+static struct efi_boot_services *boottime;
+static efi_guid_t guid1 =
+ EFI_GUID(0x492a0e38, 0x1442, 0xf819,
+ 0x14, 0xaa, 0x4b, 0x8d, 0x09, 0xfe, 0x5a, 0xb9);
+static efi_handle_t handle1;
+static struct interface interface1;
+
+/*
+ * Setup unit test.
+ *
+ * Create a handle and install a protocol interface on it.
+ *
+ * @handle: handle of the loaded image
+ * @systable: system table
+ */
+static int setup(const efi_handle_t img_handle,
+ const struct efi_system_table *systable)
+{
+ efi_status_t ret;
+
+ boottime = systable->boottime;
+
+ ret = boottime->install_protocol_interface(&handle1, &guid1,
+ EFI_NATIVE_INTERFACE,
+ &interface1);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("InstallProtocolInterface failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (!handle1) {
+ efi_st_error
+ ("InstallProtocolInterface failed to create handle\n");
+ return EFI_ST_FAILURE;
+ }
+ return EFI_ST_SUCCESS;
+}
+
+/*
+ * Tear down unit test.
+ *
+ */
+static int teardown(void)
+{
+ efi_status_t ret;
+
+ if (handle1) {
+ ret = boottime->uninstall_protocol_interface(handle1, &guid1,
+ &interface1);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("UninstallProtocolInterface failed\n");
+ return EFI_ST_FAILURE;
+ }
+ }
+ return EFI_ST_SUCCESS;
+}
+
+/*
+ * Execute unit test.
+ *
+ * Open the installed protocol twice via HandleProtocol() and once via
+ * OpenProtocol(EFI_OPEN_PROTOCOL_GET_PROTOCOL). Read the open protocol
+ * information and check the open counts. Finally close the protocol and
+ * check again.
+ */
+static int execute(void)
+{
+ void *interface;
+ struct efi_open_protocol_info_entry *entry_buffer;
+ efi_uintn_t entry_count;
+ efi_handle_t firmware_handle;
+ efi_status_t ret;
+
+ ret = boottime->handle_protocol(handle1, &guid1, &interface);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("HandleProtocol failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (interface != &interface1) {
+ efi_st_error("HandleProtocol returned wrong interface\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->open_protocol_information(handle1, &guid1,
+ &entry_buffer, &entry_count);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("OpenProtocolInformation failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (entry_count != 1) {
+ efi_st_error("Incorrect OpenProtocolInformation count\n");
+ efi_st_printf("Expected 1, got %u\n",
+ (unsigned int)entry_count);
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->free_pool(entry_buffer);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("FreePool failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->handle_protocol(handle1, &guid1, &interface);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("HandleProtocol failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->open_protocol_information(handle1, &guid1,
+ &entry_buffer, &entry_count);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("OpenProtocolInformation failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (entry_count != 1) {
+ efi_st_error("Incorrect OpenProtocolInformation count\n");
+ efi_st_printf("Expected 1, got %u\n",
+ (unsigned int)entry_count);
+ return EFI_ST_FAILURE;
+ }
+ if (entry_buffer[0].open_count != 2) {
+ efi_st_error("Incorrect open count: expected 2 got %u\n",
+ entry_buffer[0].open_count);
+ return EFI_ST_FAILURE;
+ }
+ firmware_handle = entry_buffer[0].agent_handle;
+ ret = boottime->free_pool(entry_buffer);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("FreePool failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->open_protocol(handle1, &guid1, &interface,
+ firmware_handle, NULL,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("OpenProtocol failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->open_protocol_information(handle1, &guid1,
+ &entry_buffer, &entry_count);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("OpenProtocolInformation failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (entry_count != 2) {
+ efi_st_error("Incorrect OpenProtocolInformation count\n");
+ efi_st_printf("Expected 2, got %u\n",
+ (unsigned int)entry_count);
+ return EFI_ST_FAILURE;
+ }
+ if (entry_buffer[0].open_count + entry_buffer[1].open_count != 3) {
+ efi_st_error("Incorrect open count: expected 3 got %u\n",
+ entry_buffer[0].open_count +
+ entry_buffer[1].open_count);
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->free_pool(entry_buffer);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("FreePool failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->close_protocol(handle1, &guid1, firmware_handle, NULL);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("CloseProtocol failed\n");
+ return EFI_ST_FAILURE;
+ }
+ ret = boottime->open_protocol_information(handle1, &guid1,
+ &entry_buffer, &entry_count);
+ if (ret != EFI_SUCCESS) {
+ efi_st_error("OpenProtocolInformation failed\n");
+ return EFI_ST_FAILURE;
+ }
+ if (entry_count) {
+ efi_st_error("Incorrect OpenProtocolInformation count\n");
+ efi_st_printf("Expected 0, got %u\n",
+ (unsigned int)entry_count);
+ return EFI_ST_FAILURE;
+ }
+
+ return EFI_ST_SUCCESS;
+}
+
+EFI_UNIT_TEST(openprot) = {
+ .name = "open protocol",
+ .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
+ .setup = setup,
+ .execute = execute,
+ .teardown = teardown,
+};
--
2.20.1
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