include/efi_selftest.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  *  EFI application loader
   4  *
   5  *  Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
   6  */
   7
   8 #ifndef _EFI_SELFTEST_H
   9 #define _EFI_SELFTEST_H
  10
  11 #include <common.h>
  12 #include <efi.h>
  13 #include <efi_api.h>
  14 #include <efi_loader.h>
  15 #include <linker_lists.h>
  16
  17 #define EFI_ST_SUCCESS 0
  18 #define EFI_ST_FAILURE 1
  19
  20 /*
  21  * Prints a message.
  22  */
  23 #define efi_st_printf(...) \
  24         (efi_st_printc(-1, __VA_ARGS__))
  25
  26 /*
  27  * Prints an error message.
  28  *
  29  * @... format string followed by fields to print
  30  */
  31 #define efi_st_error(...) \
  32         (efi_st_printc(EFI_LIGHTRED, "%s(%u):\nERROR: ", __FILE__, __LINE__), \
  33         efi_st_printc(EFI_LIGHTRED, __VA_ARGS__))
  34
  35 /*
  36  * Prints a TODO message.
  37  *
  38  * @... format string followed by fields to print
  39  */
  40 #define efi_st_todo(...) \
  41         (efi_st_printc(EFI_YELLOW, "%s(%u):\nTODO: ", __FILE__, __LINE__), \
  42         efi_st_printc(EFI_YELLOW, __VA_ARGS__)) \
  43
  44 /*
  45  * A test may be setup and executed at boottime,
  46  * it may be setup at boottime and executed at runtime,
  47  * or it may be setup and executed at runtime.
  48  */
  49 enum efi_test_phase {
  50         EFI_EXECUTE_BEFORE_BOOTTIME_EXIT = 1,
  51         EFI_SETUP_BEFORE_BOOTTIME_EXIT,
  52         EFI_SETUP_AFTER_BOOTTIME_EXIT,
  53 };
  54
  55 extern struct efi_simple_text_output_protocol *con_out;
  56 extern struct efi_simple_input_interface *con_in;
  57
  58 /*
  59  * Exit the boot services.
  60  *
  61  * The size of the memory map is determined.
  62  * Pool memory is allocated to copy the memory map.
  63  * The memory amp is copied and the map key is obtained.
  64  * The map key is used to exit the boot services.
  65  */
  66 void efi_st_exit_boot_services(void);
  67
  68 /*
  69  * Print a colored message
  70  *
  71  * @color       color, see constants in efi_api.h, use -1 for no color
  72  * @fmt         printf format
  73  * @...         arguments to be printed
  74  *              on return position of terminating zero word
  75  */
  76 void efi_st_printc(int color, const char *fmt, ...)
  77                  __attribute__ ((format (__printf__, 2, 3)));
  78
  79 /*
  80  * Compare memory.
  81  * We cannot use lib/string.c due to different CFLAGS values.
  82  *
  83  * @buf1:       first buffer
  84  * @buf2:       second buffer
  85  * @length:     number of bytes to compare
  86  * @return:     0 if both buffers contain the same bytes
  87  */
  88 int efi_st_memcmp(const void *buf1, const void *buf2, size_t length);
  89
  90 /*
  91  * Compare an u16 string to a char string.
  92  *
  93  * @buf1:       u16 string
  94  * @buf2:       char string
  95  * @return:     0 if both buffers contain the same bytes
  96  */
  97 int efi_st_strcmp_16_8(const u16 *buf1, const char *buf2);
  98
  99 /*
 100  * Reads an Unicode character from the input device.
 101  *
 102  * @return: Unicode character
 103  */
 104 u16 efi_st_get_key(void);
 105
 106 /**
 107  * struct efi_unit_test - EFI unit test
 108  *
 109  * An efi_unit_test provides a interface to an EFI unit test.
 110  *
 111  * @name:       name of unit test
 112  * @phase:      specifies when setup and execute are executed
 113  * @setup:      set up the unit test
 114  * @teardown:   tear down the unit test
 115  * @execute:    execute the unit test
 116  * @setup_ok:   setup was successful (set at runtime)
 117  * @on_request: test is only executed on request
 118  */
 119 struct efi_unit_test {
 120         const char *name;
 121         const enum efi_test_phase phase;
 122         int (*setup)(const efi_handle_t handle,
 123                      const struct efi_system_table *systable);
 124         int (*execute)(void);
 125         int (*teardown)(void);
 126         int setup_ok;
 127         bool on_request;
 128 };
 129
 130 /* Declare a new EFI unit test */
 131 #define EFI_UNIT_TEST(__name)                                           \
 132         ll_entry_declare(struct efi_unit_test, __name, efi_unit_test)
 133
 134 #endif /* _EFI_SELFTEST_H */