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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_manageprotocols
*
* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* This unit test checks the following protocol services:
* InstallProtocolInterface, UninstallProtocolInterface,
* InstallMultipleProtocolsInterfaces, UninstallMultipleProtocolsInterfaces,
* HandleProtocol, ProtocolsPerHandle,
* LocateHandle, LocateHandleBuffer.
*/
#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(0x2e7ca819, 0x21d3, 0x0a3a,
0xf7, 0x91, 0x82, 0x1f, 0x7a, 0x83, 0x67, 0xaf);
static efi_guid_t guid2 =
EFI_GUID(0xf909f2bb, 0x90a8, 0x0d77,
0x94, 0x0c, 0x3e, 0xa8, 0xea, 0x38, 0xd6, 0x6f);
static efi_guid_t guid3 =
EFI_GUID(0x06d641a3, 0xf4e7, 0xe0c9,
0xe7, 0x8d, 0x41, 0x2d, 0x72, 0xa6, 0xb1, 0x24);
static efi_handle_t handle1;
static efi_handle_t handle2;
static struct interface interface1;
static struct interface interface2;
static struct interface interface3;
static struct interface interface4;
/*
* Find a handle in an array.
*
* @handle: handle to find
* @count: number of entries in the array
* @buffer: array to search
*/
efi_status_t find_in_buffer(efi_handle_t handle, size_t count,
efi_handle_t *buffer)
{
size_t i;
for (i = 0; i < count; ++i) {
if (buffer[i] == handle)
return EFI_SUCCESS;
}
return EFI_NOT_FOUND;
}
/*
* Setup unit test.
*
* Create two handles and install two out of three protocol interfaces on each
* of them:
*
* handle1
* guid1 interface1
* guid3 interface3
* handle2
* guid1 interface4
* guid2 interface2
*
* @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;
efi_handle_t handle;
boottime = systable->boottime;
ret = boottime->install_protocol_interface(&handle1, &guid3,
EFI_NATIVE_INTERFACE,
&interface3);
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;
}
handle = handle1;
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 (handle != handle1) {
efi_st_error("InstallProtocolInterface failed to use handle\n");
return EFI_ST_FAILURE;
}
ret = boottime->install_multiple_protocol_interfaces(&handle2,
&guid1, &interface4, &guid2, &interface2, NULL);
if (ret != EFI_SUCCESS) {
efi_st_error("InstallMultipleProtocolInterfaces failed\n");
return EFI_ST_FAILURE;
}
if (!handle2 || handle1 == handle2) {
efi_st_error("InstallMultipleProtocolInterfaces failed to create handle\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Tear down unit test.
*
*/
static int teardown(void)
{
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
*/
static int execute(void)
{
struct interface *interface;
efi_status_t ret;
efi_handle_t *buffer;
size_t buffer_size;
efi_uintn_t count = 0;
efi_guid_t **prot_buffer;
efi_uintn_t prot_count;
/*
* Test HandleProtocol
*/
ret = boottime->handle_protocol(handle1, &guid3, (void **)&interface);
if (ret != EFI_SUCCESS) {
efi_st_error("HandleProtocol failed to retrieve interface\n");
return EFI_ST_FAILURE;
}
if (interface != &interface3) {
efi_st_error("HandleProtocol returned wrong interface\n");
return EFI_ST_FAILURE;
}
ret = boottime->handle_protocol(handle1, &guid2, (void **)&interface);
if (ret == EFI_SUCCESS) {
efi_st_error("HandleProtocol returned not installed interface\n");
return EFI_ST_FAILURE;
}
/*
* Test LocateHandleBuffer with AllHandles
*/
ret = boottime->locate_handle_buffer(ALL_HANDLES, NULL, NULL,
&count, &buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer with AllHandles failed\n");
return EFI_ST_FAILURE;
}
buffer_size = count;
ret = find_in_buffer(handle1, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed to locate new handle\n");
return EFI_ST_FAILURE;
}
ret = find_in_buffer(handle2, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed to locate new handle\n");
return EFI_ST_FAILURE;
}
boottime->set_mem(buffer, sizeof(efi_handle_t) * buffer_size, 0);
/*
* Test error handling in UninstallMultipleProtocols
*
* Try to uninstall more protocols than there are installed.
*/
ret = boottime->uninstall_multiple_protocol_interfaces(
handle2,
&guid1, &interface4,
&guid2, &interface2,
&guid3, &interface3,
NULL);
if (ret == EFI_SUCCESS) {
efi_st_error("UninstallMultipleProtocolInterfaces did not catch error\n");
return EFI_ST_FAILURE;
}
/*
* Test LocateHandleBuffer with ByProtocol
*/
count = buffer_size;
ret = boottime->locate_handle_buffer(BY_PROTOCOL, &guid1, NULL,
&count, &buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed to locate new handles\n");
return EFI_ST_FAILURE;
}
if (count != 2) {
efi_st_error("LocateHandleBuffer failed to locate new handles\n");
return EFI_ST_FAILURE;
}
ret = find_in_buffer(handle1, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed to locate new handle\n");
return EFI_ST_FAILURE;
}
ret = find_in_buffer(handle2, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed to locate new handle\n");
return EFI_ST_FAILURE;
}
boottime->set_mem(buffer, sizeof(efi_handle_t) * buffer_size, 0);
/*
* Test LocateHandle with ByProtocol
*/
count = buffer_size * sizeof(efi_handle_t);
ret = boottime->locate_handle(BY_PROTOCOL, &guid1, NULL,
&count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandle with ByProtocol failed\n");
return EFI_ST_FAILURE;
}
if (count / sizeof(efi_handle_t) != 2) {
efi_st_error("LocateHandle failed to locate new handles\n");
return EFI_ST_FAILURE;
}
buffer_size = count;
ret = find_in_buffer(handle1, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandle failed to locate new handles\n");
return EFI_ST_FAILURE;
}
ret = find_in_buffer(handle2, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandle failed to locate new handles\n");
return EFI_ST_FAILURE;
}
boottime->set_mem(buffer, sizeof(efi_handle_t) * buffer_size, 0);
/*
* Test LocateProtocol
*/
ret = boottime->locate_protocol(&guid1, NULL, (void **)&interface);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateProtocol failed\n");
return EFI_ST_FAILURE;
}
if (interface != &interface1 && interface != &interface4) {
efi_st_error("LocateProtocol failed to locate protocol\n");
return EFI_ST_FAILURE;
}
/*
* Test UninstallMultipleProtocols
*/
ret = boottime->uninstall_multiple_protocol_interfaces(
handle2,
&guid1, &interface4,
&guid2, &interface2,
NULL);
if (ret != EFI_SUCCESS) {
efi_st_error("UninstallMultipleProtocolInterfaces failed\n");
return EFI_ST_FAILURE;
}
/*
* Check that the protocols are really uninstalled.
*/
count = buffer_size;
ret = boottime->locate_handle_buffer(BY_PROTOCOL, &guid1, NULL,
&count, &buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("LocateHandleBuffer failed\n");
return EFI_ST_FAILURE;
}
if (count != 1) {
efi_st_error("UninstallMultipleProtocolInterfaces failed to uninstall protocols\n");
return EFI_ST_FAILURE;
}
ret = find_in_buffer(handle1, count, buffer);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to locate new handle\n");
return EFI_ST_FAILURE;
}
boottime->set_mem(buffer, sizeof(efi_handle_t) * buffer_size, 0);
/*
* Test ProtocolsPerHandle
*/
ret = boottime->protocols_per_handle(handle1,
&prot_buffer, &prot_count);
if (ret != EFI_SUCCESS) {
efi_st_error("Failed to get protocols per handle\n");
return EFI_ST_FAILURE;
}
if (prot_count != 2) {
efi_st_error("Failed to get protocols per handle\n");
return EFI_ST_FAILURE;
}
if (efi_st_memcmp(prot_buffer[0], &guid1, 16) &&
efi_st_memcmp(prot_buffer[1], &guid1, 16)) {
efi_st_error("Failed to get protocols per handle\n");
return EFI_ST_FAILURE;
}
if (efi_st_memcmp(prot_buffer[0], &guid3, 16) &&
efi_st_memcmp(prot_buffer[1], &guid3, 16)) {
efi_st_error("Failed to get protocols per handle\n");
return EFI_ST_FAILURE;
}
/*
* Uninstall remaining protocols
*/
ret = boottime->uninstall_protocol_interface(handle1, &guid1,
&interface1);
if (ret != EFI_SUCCESS) {
efi_st_error("UninstallProtocolInterface failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->handle_protocol(handle1, &guid1, (void **)&interface);
if (ret == EFI_SUCCESS) {
efi_st_error("UninstallProtocolInterface failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->uninstall_protocol_interface(handle1, &guid3,
&interface3);
if (ret != EFI_SUCCESS) {
efi_st_error("UninstallProtocolInterface failed\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(protserv) = {
.name = "manage protocols",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
.teardown = teardown,
};