[v3,1/5] efi_loader: Initial HII database protocols

Message ID 20190121031301.1808-2-takahiro.akashi@linaro.org
State New
Headers show
Series
  • subject: efi_loader: add HII database protocol
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Commit Message

AKASHI Takahiro Jan. 21, 2019, 3:12 a.m.
From: Leif Lindholm <leif.lindholm@linaro.org>

This patch provides enough implementation of the following protocols to
run EDKII's Shell.efi and UEFI SCT:

  * EfiHiiDatabaseProtocol
  * EfiHiiStringProtocol

Not implemented are:
  * ExportPackageLists()
  * RegisterPackageNotify()/UnregisterPackageNotify()
  * SetKeyboardLayout() (i.e. *current* keyboard layout)

HII database protocol in this patch series can handle only:
  * GUID package
  * string package
  * keyboard layout package
  (The other packages, except Device path package, will be necessary
   for interactive and graphical UI.)

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
 include/efi_api.h             | 245 ++++++++-
 include/efi_loader.h          |   4 +
 lib/efi_loader/Makefile       |   1 +
 lib/efi_loader/efi_boottime.c |  12 +
 lib/efi_loader/efi_hii.c      | 922 ++++++++++++++++++++++++++++++++++
 5 files changed, 1183 insertions(+), 1 deletion(-)
 create mode 100644 lib/efi_loader/efi_hii.c

Patch

diff --git a/include/efi_api.h b/include/efi_api.h
index aef77b6319de..67c3753de0b1 100644
--- a/include/efi_api.h
+++ b/include/efi_api.h
@@ -17,6 +17,7 @@ 
 #define _EFI_API_H
 
 #include <efi.h>
+#include <charset.h>
 
 #ifdef CONFIG_EFI_LOADER
 #include <asm/setjmp.h>
@@ -34,7 +35,10 @@  enum efi_timer_delay {
 
 #define efi_intn_t ssize_t
 #define efi_uintn_t size_t
-typedef uint16_t *efi_string_t;
+typedef void *efi_hii_handle_t;
+typedef u16 *efi_string_t;
+typedef u16 efi_string_id_t;
+typedef u32 efi_hii_font_style_t;
 
 #define EVT_TIMER				0x80000000
 #define EVT_RUNTIME				0x40000000
@@ -697,6 +701,245 @@  struct efi_device_path_utilities_protocol {
 		uint16_t node_length);
 };
 
+/*
+ * Human Interface Infrastructure (HII)
+ */
+struct efi_hii_package_list_header {
+	efi_guid_t package_list_guid;
+	u32 package_length;
+} __packed;
+
+/**
+ * struct efi_hii_package_header - EFI HII package header
+ *
+ * @fields:	'fields' replaces the bit-fields defined in the EFI
+ *		specification to to avoid possible compiler incompatibilities::
+ *
+ *		u32 length:24;
+ *		u32 type:8;
+ */
+struct efi_hii_package_header {
+	u32 fields;
+} __packed;
+
+#define __EFI_HII_PACKAGE_LEN_SHIFT	0
+#define __EFI_HII_PACKAGE_TYPE_SHIFT	24
+#define __EFI_HII_PACKAGE_LEN_MASK	0xffffff
+#define __EFI_HII_PACKAGE_TYPE_MASK	0xff
+
+#define EFI_HII_PACKAGE_TYPE_ALL          0x00
+#define EFI_HII_PACKAGE_TYPE_GUID         0x01
+#define EFI_HII_PACKAGE_FORMS             0x02
+#define EFI_HII_PACKAGE_STRINGS           0x04
+#define EFI_HII_PACKAGE_FONTS             0x05
+#define EFI_HII_PACKAGE_IMAGES            0x06
+#define EFI_HII_PACKAGE_SIMPLE_FONTS      0x07
+#define EFI_HII_PACKAGE_DEVICE_PATH       0x08
+#define EFI_HII_PACKAGE_KEYBOARD_LAYOUT   0x09
+#define EFI_HII_PACKAGE_ANIMATIONS        0x0A
+#define EFI_HII_PACKAGE_END               0xDF
+#define EFI_HII_PACKAGE_TYPE_SYSTEM_BEGIN 0xE0
+#define EFI_HII_PACKAGE_TYPE_SYSTEM_END   0xFF
+
+/*
+ * HII string package
+ */
+struct efi_hii_strings_package {
+	struct efi_hii_package_header header;
+	u32 header_size;
+	u32 string_info_offset;
+	u16 language_window[16];
+	efi_string_id_t language_name;
+	u8  language[];
+} __packed;
+
+struct efi_hii_string_block {
+	u8 block_type;
+	/* u8 block_body[]; */
+} __packed;
+
+#define EFI_HII_SIBT_END               0x00
+#define EFI_HII_SIBT_STRING_SCSU       0x10
+#define EFI_HII_SIBT_STRING_SCSU_FONT  0x11
+#define EFI_HII_SIBT_STRINGS_SCSU      0x12
+#define EFI_HII_SIBT_STRINGS_SCSU_FONT 0x13
+#define EFI_HII_SIBT_STRING_UCS2       0x14
+#define EFI_HII_SIBT_STRING_UCS2_FONT  0x15
+#define EFI_HII_SIBT_STRINGS_UCS2      0x16
+#define EFI_HII_SIBT_STRINGS_UCS2_FONT 0x17
+#define EFI_HII_SIBT_DUPLICATE         0x20
+#define EFI_HII_SIBT_SKIP2             0x21
+#define EFI_HII_SIBT_SKIP1             0x22
+#define EFI_HII_SIBT_EXT1              0x30
+#define EFI_HII_SIBT_EXT2              0x31
+#define EFI_HII_SIBT_EXT4              0x32
+#define EFI_HII_SIBT_FONT              0x40
+
+struct efi_hii_sibt_string_ucs2_block {
+	struct efi_hii_string_block header;
+	u16 string_text[];
+} __packed;
+
+static inline struct efi_hii_string_block *
+efi_hii_sibt_string_ucs2_block_next(struct efi_hii_sibt_string_ucs2_block *blk)
+{
+	return ((void *)blk) + sizeof(*blk) +
+		(u16_strlen(blk->string_text) + 1) * 2;
+}
+
+/*
+ * HII keyboard package
+ */
+typedef enum {
+	EFI_KEY_LCTRL, EFI_KEY_A0, EFI_KEY_LALT, EFI_KEY_SPACE_BAR,
+	EFI_KEY_A2, EFI_KEY_A3, EFI_KEY_A4, EFI_KEY_RCTRL, EFI_KEY_LEFT_ARROW,
+	EFI_KEY_DOWN_ARROW, EFI_KEY_RIGHT_ARROW, EFI_KEY_ZERO,
+	EFI_KEY_PERIOD, EFI_KEY_ENTER, EFI_KEY_LSHIFT, EFI_KEY_B0,
+	EFI_KEY_B1, EFI_KEY_B2, EFI_KEY_B3, EFI_KEY_B4, EFI_KEY_B5, EFI_KEY_B6,
+	EFI_KEY_B7, EFI_KEY_B8, EFI_KEY_B9, EFI_KEY_B10, EFI_KEY_RSHIFT,
+	EFI_KEY_UP_ARROW, EFI_KEY_ONE, EFI_KEY_TWO, EFI_KEY_THREE,
+	EFI_KEY_CAPS_LOCK, EFI_KEY_C1, EFI_KEY_C2, EFI_KEY_C3, EFI_KEY_C4,
+	EFI_KEY_C5, EFI_KEY_C6, EFI_KEY_C7, EFI_KEY_C8, EFI_KEY_C9,
+	EFI_KEY_C10, EFI_KEY_C11, EFI_KEY_C12, EFI_KEY_FOUR, EFI_KEY_FIVE,
+	EFI_KEY_SIX, EFI_KEY_PLUS, EFI_KEY_TAB, EFI_KEY_D1, EFI_KEY_D2,
+	EFI_KEY_D3, EFI_KEY_D4, EFI_KEY_D5, EFI_KEY_D6, EFI_KEY_D7, EFI_KEY_D8,
+	EFI_KEY_D9, EFI_KEY_D10, EFI_KEY_D11, EFI_KEY_D12, EFI_KEY_D13,
+	EFI_KEY_DEL, EFI_KEY_END, EFI_KEY_PG_DN, EFI_KEY_SEVEN, EFI_KEY_EIGHT,
+	EFI_KEY_NINE, EFI_KEY_E0, EFI_KEY_E1, EFI_KEY_E2, EFI_KEY_E3,
+	EFI_KEY_E4, EFI_KEY_E5, EFI_KEY_E6, EFI_KEY_E7, EFI_KEY_E8, EFI_KEY_E9,
+	EFI_KEY_E10, EFI_KEY_E11, EFI_KEY_E12, EFI_KEY_BACK_SPACE,
+	EFI_KEY_INS, EFI_KEY_HOME, EFI_KEY_PG_UP, EFI_KEY_NLCK, EFI_KEY_SLASH,
+	EFI_KEY_ASTERISK, EFI_KEY_MINUS, EFI_KEY_ESC, EFI_KEY_F1, EFI_KEY_F2,
+	EFI_KEY_F3, EFI_KEY_F4, EFI_KEY_F5, EFI_KEY_F6, EFI_KEY_F7, EFI_KEY_F8,
+	EFI_KEY_F9, EFI_KEY_F10, EFI_KEY_F11, EFI_KEY_F12, EFI_KEY_PRINT,
+	EFI_KEY_SLCK, EFI_KEY_PAUSE,
+} efi_key;
+
+struct efi_key_descriptor {
+	u32 key;
+	u16 unicode;
+	u16 shifted_unicode;
+	u16 alt_gr_unicode;
+	u16 shifted_alt_gr_unicode;
+	u16 modifier;
+	u16 affected_attribute;
+} __packed;
+
+struct efi_hii_keyboard_layout {
+	u16 layout_length;
+	efi_guid_t guid;
+	u32 layout_descriptor_string_offset;
+	u8 descriptor_count;
+	struct efi_key_descriptor descriptors[];
+} __packed;
+
+/*
+ * HII protocols
+ */
+#define EFI_HII_STRING_PROTOCOL_GUID \
+	EFI_GUID(0x0fd96974, 0x23aa, 0x4cdc, \
+		 0xb9, 0xcb, 0x98, 0xd1, 0x77, 0x50, 0x32, 0x2a)
+
+struct efi_font_info {
+	efi_hii_font_style_t font_style;
+	u16 font_size;
+	u16 font_name[1];
+};
+
+struct efi_hii_string_protocol {
+	efi_status_t(EFIAPI *new_string)(
+		const struct efi_hii_string_protocol *this,
+		efi_hii_handle_t package_list,
+		efi_string_id_t *string_id,
+		const u8 *language,
+		const u16 *language_name,
+		const efi_string_t string,
+		const struct efi_font_info *string_font_info);
+	efi_status_t(EFIAPI *get_string)(
+		const struct efi_hii_string_protocol *this,
+		const u8 *language,
+		efi_hii_handle_t package_list,
+		efi_string_id_t string_id,
+		efi_string_t string,
+		efi_uintn_t *string_size,
+		struct efi_font_info **string_font_info);
+	efi_status_t(EFIAPI *set_string)(
+		const struct efi_hii_string_protocol *this,
+		efi_hii_handle_t package_list,
+		efi_string_id_t string_id,
+		const u8 *language,
+		const efi_string_t string,
+		const struct efi_font_info *string_font_info);
+	efi_status_t(EFIAPI *get_languages)(
+		const struct efi_hii_string_protocol *this,
+		efi_hii_handle_t package_list,
+		u8 *languages,
+		efi_uintn_t *languages_size);
+	efi_status_t(EFIAPI *get_secondary_languages)(
+		const struct efi_hii_string_protocol *this,
+		efi_hii_handle_t package_list,
+		const u8 *primary_language,
+		u8 *secondary_languages,
+		efi_uintn_t *secondary_languages_size);
+};
+
+#define EFI_HII_DATABASE_PROTOCOL_GUID	     \
+	EFI_GUID(0xef9fc172, 0xa1b2, 0x4693, \
+		 0xb3, 0x27, 0x6d, 0x32, 0xfc, 0x41, 0x60, 0x42)
+
+struct efi_hii_database_protocol {
+	efi_status_t(EFIAPI *new_package_list)(
+		const struct efi_hii_database_protocol *this,
+		const struct efi_hii_package_list_header *package_list,
+		const efi_handle_t driver_handle,
+		efi_hii_handle_t *handle);
+	efi_status_t(EFIAPI *remove_package_list)(
+		const struct efi_hii_database_protocol *this,
+		efi_hii_handle_t handle);
+	efi_status_t(EFIAPI *update_package_list)(
+		const struct efi_hii_database_protocol *this,
+		efi_hii_handle_t handle,
+		const struct efi_hii_package_list_header *package_list);
+	efi_status_t(EFIAPI *list_package_lists)(
+		const struct efi_hii_database_protocol *this,
+		u8 package_type,
+		const efi_guid_t *package_guid,
+		efi_uintn_t *handle_buffer_length,
+		efi_hii_handle_t *handle);
+	efi_status_t(EFIAPI *export_package_lists)(
+		const struct efi_hii_database_protocol *this,
+		efi_hii_handle_t handle,
+		efi_uintn_t *buffer_size,
+		struct efi_hii_package_list_header *buffer);
+	efi_status_t(EFIAPI *register_package_notify)(
+		const struct efi_hii_database_protocol *this,
+		u8 package_type,
+		const efi_guid_t *package_guid,
+		const void *package_notify_fn,
+		efi_uintn_t notify_type,
+		efi_handle_t *notify_handle);
+	efi_status_t(EFIAPI *unregister_package_notify)(
+		const struct efi_hii_database_protocol *this,
+		efi_handle_t notification_handle
+		);
+	efi_status_t(EFIAPI *find_keyboard_layouts)(
+		const struct efi_hii_database_protocol *this,
+		u16 *key_guid_buffer_length,
+		efi_guid_t *key_guid_buffer);
+	efi_status_t(EFIAPI *get_keyboard_layout)(
+		const struct efi_hii_database_protocol *this,
+		efi_guid_t *key_guid,
+		u16 *keyboard_layout_length,
+		struct efi_hii_keyboard_layout *keyboard_layout);
+	efi_status_t(EFIAPI *set_keyboard_layout)(
+		const struct efi_hii_database_protocol *this,
+		efi_guid_t *key_guid);
+	efi_status_t(EFIAPI *get_package_list_handle)(
+		const struct efi_hii_database_protocol *this,
+		efi_hii_handle_t package_list_handle,
+		efi_handle_t *driver_handle);
+};
+
 #define EFI_GOP_GUID \
 	EFI_GUID(0x9042a9de, 0x23dc, 0x4a38, \
 		 0x96, 0xfb, 0x7a, 0xde, 0xd0, 0x80, 0x51, 0x6a)
diff --git a/include/efi_loader.h b/include/efi_loader.h
index 6323686f9d37..18384a8caf5c 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -106,6 +106,8 @@  extern const struct efi_device_path_utilities_protocol
 /* Implementation of the EFI_UNICODE_COLLATION_PROTOCOL */
 extern const struct efi_unicode_collation_protocol
 					efi_unicode_collation_protocol;
+extern const struct efi_hii_database_protocol efi_hii_database;
+extern const struct efi_hii_string_protocol efi_hii_string;
 
 uint16_t *efi_dp_str(struct efi_device_path *dp);
 
@@ -139,6 +141,8 @@  extern const efi_guid_t efi_file_system_info_guid;
 extern const efi_guid_t efi_guid_device_path_utilities_protocol;
 /* GUID of the Unicode collation protocol */
 extern const efi_guid_t efi_guid_unicode_collation_protocol;
+extern const efi_guid_t efi_guid_hii_database_protocol;
+extern const efi_guid_t efi_guid_hii_string_protocol;
 
 extern unsigned int __efi_runtime_start, __efi_runtime_stop;
 extern unsigned int __efi_runtime_rel_start, __efi_runtime_rel_stop;
diff --git a/lib/efi_loader/Makefile b/lib/efi_loader/Makefile
index a7bba58d4126..dc8bc1461cb9 100644
--- a/lib/efi_loader/Makefile
+++ b/lib/efi_loader/Makefile
@@ -24,6 +24,7 @@  obj-y += efi_device_path.o
 obj-y += efi_device_path_to_text.o
 obj-y += efi_device_path_utilities.o
 obj-y += efi_file.o
+obj-y += efi_hii.o
 obj-y += efi_image_loader.o
 obj-y += efi_memory.o
 obj-y += efi_root_node.o
diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index cc9efbb0cbfd..ba2e1f652afe 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -1558,6 +1558,18 @@  efi_status_t efi_setup_loaded_image(struct efi_device_path *device_path,
 	if (ret != EFI_SUCCESS)
 		goto failure;
 
+	ret = efi_add_protocol(&obj->header,
+			       &efi_guid_hii_string_protocol,
+			       (void *)&efi_hii_string);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+
+	ret = efi_add_protocol(&obj->header,
+			       &efi_guid_hii_database_protocol,
+			       (void *)&efi_hii_database);
+	if (ret != EFI_SUCCESS)
+		goto failure;
+
 	return ret;
 failure:
 	printf("ERROR: Failure to install protocols for loaded image\n");
diff --git a/lib/efi_loader/efi_hii.c b/lib/efi_loader/efi_hii.c
new file mode 100644
index 000000000000..d6dba5719cdb
--- /dev/null
+++ b/lib/efi_loader/efi_hii.c
@@ -0,0 +1,922 @@ 
+// SPDX-License-Identifier:     GPL-2.0+
+/*
+ *  EFI Human Interface Infrastructure ... database and packages
+ *
+ *  Copyright (c) 2017 Leif Lindholm
+ *  Copyright (c) 2018 AKASHI Takahiro, Linaro Limited
+ */
+
+#include <common.h>
+#include <efi_loader.h>
+#include <malloc.h>
+#include <asm/unaligned.h>
+
+const efi_guid_t efi_guid_hii_database_protocol
+		= EFI_HII_DATABASE_PROTOCOL_GUID;
+const efi_guid_t efi_guid_hii_string_protocol = EFI_HII_STRING_PROTOCOL_GUID;
+
+static LIST_HEAD(efi_package_lists);
+
+struct efi_hii_packagelist {
+	struct list_head link;
+	// TODO should there be an associated efi_object?
+	efi_handle_t driver_handle;
+	u32 max_string_id;
+	struct list_head string_tables;     /* list of efi_string_table */
+
+	/* we could also track fonts, images, etc */
+};
+
+static int efi_hii_packagelist_exists(efi_hii_handle_t package_list)
+{
+	struct efi_hii_packagelist *hii;
+	int found = 0;
+
+	list_for_each_entry(hii, &efi_package_lists, link) {
+		if (hii == package_list) {
+			found = 1;
+			break;
+		}
+	}
+
+	return found;
+}
+
+static u32 efi_hii_package_type(struct efi_hii_package_header *header)
+{
+	u32 fields;
+
+	fields = get_unaligned_le32(&header->fields);
+
+	return (fields >> __EFI_HII_PACKAGE_TYPE_SHIFT)
+		& __EFI_HII_PACKAGE_TYPE_MASK;
+}
+
+static u32 efi_hii_package_len(struct efi_hii_package_header *header)
+{
+	u32 fields;
+
+	fields = get_unaligned_le32(&header->fields);
+
+	return (fields >> __EFI_HII_PACKAGE_LEN_SHIFT)
+		& __EFI_HII_PACKAGE_LEN_MASK;
+}
+
+struct efi_string_info {
+	efi_string_t string;
+	/* we could also track font info, etc */
+};
+
+struct efi_string_table {
+	struct list_head link;
+	efi_string_id_t language_name;
+	char *language;
+	u32 nstrings;
+	/*
+	 * NOTE:
+	 *  string id starts at 1 so value is stbl->strings[id-1],
+	 *  and strings[] is a array of stbl->nstrings elements
+	 */
+	struct efi_string_info *strings;
+};
+
+static void free_strings_table(struct efi_string_table *stbl)
+{
+	int i;
+
+	for (i = 0; i < stbl->nstrings; i++)
+		free(stbl->strings[i].string);
+	free(stbl->strings);
+	free(stbl->language);
+	free(stbl);
+}
+
+static void remove_strings_package(struct efi_hii_packagelist *hii)
+{
+	while (!list_empty(&hii->string_tables)) {
+		struct efi_string_table *stbl;
+
+		stbl = list_first_entry(&hii->string_tables,
+					struct efi_string_table, link);
+		list_del(&stbl->link);
+		free_strings_table(stbl);
+	}
+}
+
+static efi_status_t
+add_strings_package(struct efi_hii_packagelist *hii,
+		    struct efi_hii_strings_package *strings_package)
+{
+	struct efi_hii_string_block *block;
+	void *end;
+	u32 nstrings = 0, idx = 0;
+	struct efi_string_table *stbl = NULL;
+	efi_status_t ret;
+
+	debug("header_size: %08x\n",
+	      get_unaligned_le32(&strings_package->header_size));
+	debug("string_info_offset: %08x\n",
+	      get_unaligned_le32(&strings_package->string_info_offset));
+	debug("language_name: %u\n",
+	      get_unaligned_le16(&strings_package->language_name));
+	debug("language: %s\n", strings_package->language);
+
+	/* count # of string entries: */
+	end = ((void *)strings_package)
+			+ efi_hii_package_len(&strings_package->header);
+	block = ((void *)strings_package)
+		+ get_unaligned_le32(&strings_package->string_info_offset);
+
+	while ((void *)block < end) {
+		switch (block->block_type) {
+		case EFI_HII_SIBT_STRING_UCS2: {
+			struct efi_hii_sibt_string_ucs2_block *ucs2;
+
+			ucs2 = (void *)block;
+			nstrings++;
+			block = efi_hii_sibt_string_ucs2_block_next(ucs2);
+			break;
+		}
+		case EFI_HII_SIBT_END:
+			block = end;
+			break;
+		default:
+			debug("unknown HII string block type: %02x\n",
+			      block->block_type);
+			return EFI_INVALID_PARAMETER;
+		}
+	}
+
+	stbl = calloc(sizeof(*stbl), 1);
+	if (!stbl) {
+		ret = EFI_OUT_OF_RESOURCES;
+		goto error;
+	}
+	stbl->strings = calloc(sizeof(stbl->strings[0]), nstrings);
+	if (!stbl->strings) {
+		ret = EFI_OUT_OF_RESOURCES;
+		goto error;
+	}
+	stbl->language_name =
+			get_unaligned_le16(&strings_package->language_name);
+	stbl->language = strdup((char *)strings_package->language);
+	if (!stbl->language) {
+		ret = EFI_OUT_OF_RESOURCES;
+		goto error;
+	}
+	stbl->nstrings = nstrings;
+
+	/* and now parse string entries and populate efi_string_table */
+	block = ((void *)strings_package)
+		+ get_unaligned_le32(&strings_package->string_info_offset);
+
+	while ((void *)block < end) {
+		switch (block->block_type) {
+		case EFI_HII_SIBT_STRING_UCS2: {
+			struct efi_hii_sibt_string_ucs2_block *ucs2;
+
+			ucs2 = (void *)block;
+			debug("%4u: \"%ls\"\n", idx + 1, ucs2->string_text);
+			stbl->strings[idx].string =
+				u16_strdup(ucs2->string_text);
+			if (!stbl->strings[idx].string) {
+				ret = EFI_OUT_OF_RESOURCES;
+				goto error;
+			}
+			idx++;
+			/* FIXME: accessing u16 * here */
+			block = efi_hii_sibt_string_ucs2_block_next(ucs2);
+			break;
+		}
+		case EFI_HII_SIBT_END:
+			goto out;
+		default:
+			debug("unknown HII string block type: %02x\n",
+			      block->block_type);
+			ret = EFI_INVALID_PARAMETER;
+			goto error;
+		}
+	}
+
+out:
+	list_add(&stbl->link, &hii->string_tables);
+	if (hii->max_string_id < nstrings)
+		hii->max_string_id = nstrings;
+
+	return EFI_SUCCESS;
+
+error:
+	if (stbl) {
+		free(stbl->language);
+		if (idx > 0)
+			while (--idx >= 0)
+				free(stbl->strings[idx].string);
+		free(stbl->strings);
+	}
+	free(stbl);
+
+	return ret;
+}
+
+static struct efi_hii_packagelist *new_packagelist(void)
+{
+	struct efi_hii_packagelist *hii;
+
+	hii = malloc(sizeof(*hii));
+	hii->max_string_id = 0;
+	INIT_LIST_HEAD(&hii->string_tables);
+
+	return hii;
+}
+
+static void free_packagelist(struct efi_hii_packagelist *hii)
+{
+	remove_strings_package(hii);
+
+	list_del(&hii->link);
+	free(hii);
+}
+
+static efi_status_t
+add_packages(struct efi_hii_packagelist *hii,
+	     const struct efi_hii_package_list_header *package_list)
+{
+	struct efi_hii_package_header *package;
+	void *end;
+	efi_status_t ret = EFI_SUCCESS;
+
+	end = ((void *)package_list)
+		+ get_unaligned_le32(&package_list->package_length);
+
+	debug("package_list: %pUl (%u)\n", &package_list->package_list_guid,
+	      get_unaligned_le32(&package_list->package_length));
+
+	package = ((void *)package_list) + sizeof(*package_list);
+	while ((void *)package < end) {
+		debug("package=%p, package type=%x, length=%u\n", package,
+		      efi_hii_package_type(package),
+		      efi_hii_package_len(package));
+
+		switch (efi_hii_package_type(package)) {
+		case EFI_HII_PACKAGE_TYPE_GUID:
+			printf("\tGuid package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_FORMS:
+			printf("\tForm package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_STRINGS:
+			ret = add_strings_package(hii,
+				(struct efi_hii_strings_package *)package);
+			break;
+		case EFI_HII_PACKAGE_FONTS:
+			printf("\tFont package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_IMAGES:
+			printf("\tImage package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_SIMPLE_FONTS:
+			printf("\tSimple font package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_DEVICE_PATH:
+			printf("\tDevice path package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
+			printf("\tKeyboard layout package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_ANIMATIONS:
+			printf("\tAnimation package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_END:
+			goto out;
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_BEGIN:
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_END:
+		default:
+			break;
+		}
+
+		if (ret != EFI_SUCCESS)
+			return ret;
+
+		package = (void *)package + efi_hii_package_len(package);
+	}
+out:
+	// TODO in theory there is some notifications that should be sent..
+	return EFI_SUCCESS;
+}
+
+/*
+ * EFI_HII_DATABASE_PROTOCOL
+ */
+
+static efi_status_t EFIAPI
+new_package_list(const struct efi_hii_database_protocol *this,
+		 const struct efi_hii_package_list_header *package_list,
+		 const efi_handle_t driver_handle,
+		 efi_hii_handle_t *handle)
+{
+	struct efi_hii_packagelist *hii;
+	efi_status_t ret;
+
+	EFI_ENTRY("%p, %p, %p, %p", this, package_list, driver_handle, handle);
+
+	if (!package_list || !handle)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	hii = new_packagelist();
+	if (!hii)
+		return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+	ret = add_packages(hii, package_list);
+	if (ret != EFI_SUCCESS) {
+		free_packagelist(hii);
+		return EFI_EXIT(ret);
+	}
+
+	hii->driver_handle = driver_handle;
+	list_add_tail(&hii->link, &efi_package_lists);
+	*handle = hii;
+
+	return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI
+remove_package_list(const struct efi_hii_database_protocol *this,
+		    efi_hii_handle_t handle)
+{
+	struct efi_hii_packagelist *hii = handle;
+
+	EFI_ENTRY("%p, %p", this, handle);
+
+	if (!handle || !efi_hii_packagelist_exists(handle))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	free_packagelist(hii);
+
+	return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI
+update_package_list(const struct efi_hii_database_protocol *this,
+		    efi_hii_handle_t handle,
+		    const struct efi_hii_package_list_header *package_list)
+{
+	struct efi_hii_packagelist *hii = handle;
+	struct efi_hii_package_header *package;
+	void *end;
+	efi_status_t ret = EFI_SUCCESS;
+
+	EFI_ENTRY("%p, %p, %p", this, handle, package_list);
+
+	if (!handle || !efi_hii_packagelist_exists(handle))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (!package_list)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	debug("package_list: %pUl (%u)\n", &package_list->package_list_guid,
+	      get_unaligned_le32(&package_list->package_length));
+
+	package = ((void *)package_list) + sizeof(*package_list);
+	end = ((void *)package_list)
+		+ get_unaligned_le32(&package_list->package_length);
+
+	while ((void *)package < end) {
+		debug("package=%p, package type=%x, length=%u\n", package,
+		      efi_hii_package_type(package),
+		      efi_hii_package_len(package));
+
+		switch (efi_hii_package_type(package)) {
+		case EFI_HII_PACKAGE_TYPE_GUID:
+			printf("\tGuid package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_FORMS:
+			printf("\tForm package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_STRINGS:
+			remove_strings_package(hii);
+			break;
+		case EFI_HII_PACKAGE_FONTS:
+			printf("\tFont package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_IMAGES:
+			printf("\tImage package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_SIMPLE_FONTS:
+			printf("\tSimple font package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_DEVICE_PATH:
+			printf("\tDevice path package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
+			printf("\tKeyboard layout package not supported\n");
+			break;
+		case EFI_HII_PACKAGE_ANIMATIONS:
+			printf("\tAnimation package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			break;
+		case EFI_HII_PACKAGE_END:
+			goto out;
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_BEGIN:
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_END:
+		default:
+			break;
+		}
+
+		/* TODO: already removed some packages */
+		if (ret != EFI_SUCCESS)
+			return EFI_EXIT(ret);
+
+		package = ((void *)package)
+			  + efi_hii_package_len(package);
+	}
+out:
+	ret = add_packages(hii, package_list);
+
+	return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI
+list_package_lists(const struct efi_hii_database_protocol *this,
+		   u8 package_type,
+		   const efi_guid_t *package_guid,
+		   efi_uintn_t *handle_buffer_length,
+		   efi_hii_handle_t *handle)
+{
+	struct efi_hii_packagelist *hii =
+				(struct efi_hii_packagelist *)handle;
+	int package_cnt, package_max;
+	efi_status_t ret = EFI_SUCCESS;
+
+	EFI_ENTRY("%p, %u, %pUl, %p, %p", this, package_type, package_guid,
+		  handle_buffer_length, handle);
+
+	if (!handle_buffer_length ||
+	    (*handle_buffer_length && !handle))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	if ((package_type != EFI_HII_PACKAGE_TYPE_GUID && package_guid) ||
+	    (package_type == EFI_HII_PACKAGE_TYPE_GUID && !package_guid))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	debug("package type=%x, guid=%pUl, length=%lu\n", (int)package_type,
+	      package_guid, *handle_buffer_length);
+
+	package_cnt = 0;
+	package_max = *handle_buffer_length / sizeof(*handle);
+	list_for_each_entry(hii, &efi_package_lists, link) {
+		switch (package_type) {
+		case EFI_HII_PACKAGE_TYPE_ALL:
+			break;
+		case EFI_HII_PACKAGE_TYPE_GUID:
+			printf("\tGuid package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_FORMS:
+			printf("\tForm package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_STRINGS:
+			if (!list_empty(&hii->string_tables))
+				break;
+			continue;
+		case EFI_HII_PACKAGE_FONTS:
+			printf("\tFont package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_IMAGES:
+			printf("\tImage package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_SIMPLE_FONTS:
+			printf("\tSimple font package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_DEVICE_PATH:
+			printf("\tDevice path package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_KEYBOARD_LAYOUT:
+			printf("\tKeyboard layout package not supported\n");
+			continue;
+		case EFI_HII_PACKAGE_ANIMATIONS:
+			printf("\tAnimation package not supported\n");
+			ret = EFI_INVALID_PARAMETER;
+			continue;
+		case EFI_HII_PACKAGE_END:
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_BEGIN:
+		case EFI_HII_PACKAGE_TYPE_SYSTEM_END:
+		default:
+			continue;
+		}
+
+		package_cnt++;
+		if (package_cnt <= package_max)
+			*handle++ = hii;
+		else
+			ret = EFI_BUFFER_TOO_SMALL;
+	}
+	*handle_buffer_length = package_cnt * sizeof(*handle);
+
+	return EFI_EXIT(ret);
+}
+
+static efi_status_t EFIAPI
+export_package_lists(const struct efi_hii_database_protocol *this,
+		     efi_hii_handle_t handle,
+		     efi_uintn_t *buffer_size,
+		     struct efi_hii_package_list_header *buffer)
+{
+	EFI_ENTRY("%p, %p, %p, %p", this, handle, buffer_size, buffer);
+
+	if (!buffer_size || !buffer)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+register_package_notify(const struct efi_hii_database_protocol *this,
+			u8 package_type,
+			const efi_guid_t *package_guid,
+			const void *package_notify_fn,
+			efi_uintn_t notify_type,
+			efi_handle_t *notify_handle)
+{
+	EFI_ENTRY("%p, %u, %pUl, %p, %zu, %p", this, package_type,
+		  package_guid, package_notify_fn, notify_type,
+		  notify_handle);
+
+	if (!notify_handle)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	if ((package_type != EFI_HII_PACKAGE_TYPE_GUID && package_guid) ||
+	    (package_type == EFI_HII_PACKAGE_TYPE_GUID && !package_guid))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+}
+
+static efi_status_t EFIAPI
+unregister_package_notify(const struct efi_hii_database_protocol *this,
+			  efi_handle_t notification_handle)
+{
+	EFI_ENTRY("%p, %p", this, notification_handle);
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+find_keyboard_layouts(const struct efi_hii_database_protocol *this,
+		      u16 *key_guid_buffer_length,
+		      efi_guid_t *key_guid_buffer)
+{
+	EFI_ENTRY("%p, %p, %p", this, key_guid_buffer_length, key_guid_buffer);
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+get_keyboard_layout(const struct efi_hii_database_protocol *this,
+		    efi_guid_t *key_guid,
+		    u16 *keyboard_layout_length,
+		    struct efi_hii_keyboard_layout *keyboard_layout)
+{
+	EFI_ENTRY("%p, %pUl, %p, %p", this, key_guid, keyboard_layout_length,
+		  keyboard_layout);
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+set_keyboard_layout(const struct efi_hii_database_protocol *this,
+		    efi_guid_t *key_guid)
+{
+	EFI_ENTRY("%p, %pUl", this, key_guid);
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+get_package_list_handle(const struct efi_hii_database_protocol *this,
+			efi_hii_handle_t package_list_handle,
+			efi_handle_t *driver_handle)
+{
+	struct efi_hii_packagelist *hii;
+
+	EFI_ENTRY("%p, %p, %p", this, package_list_handle, driver_handle);
+
+	if (!driver_handle)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	list_for_each_entry(hii, &efi_package_lists, link) {
+		if (hii == package_list_handle) {
+			*driver_handle = hii->driver_handle;
+			return EFI_EXIT(EFI_SUCCESS);
+		}
+	}
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+const struct efi_hii_database_protocol efi_hii_database = {
+	.new_package_list = new_package_list,
+	.remove_package_list = remove_package_list,
+	.update_package_list = update_package_list,
+	.list_package_lists = list_package_lists,
+	.export_package_lists = export_package_lists,
+	.register_package_notify = register_package_notify,
+	.unregister_package_notify = unregister_package_notify,
+	.find_keyboard_layouts = find_keyboard_layouts,
+	.get_keyboard_layout = get_keyboard_layout,
+	.set_keyboard_layout = set_keyboard_layout,
+	.get_package_list_handle = get_package_list_handle
+};
+
+/*
+ * EFI_HII_STRING_PROTOCOL
+ */
+
+static bool language_match(char *language, char *languages)
+{
+	size_t n;
+
+	n = strlen(language);
+	/* match primary language? */
+	if (!strncasecmp(language, languages, n) &&
+	    (languages[n] == ';' || languages[n] == '\0'))
+		return true;
+
+	return false;
+}
+
+static efi_status_t EFIAPI
+new_string(const struct efi_hii_string_protocol *this,
+	   efi_hii_handle_t package_list,
+	   efi_string_id_t *string_id,
+	   const u8 *language,
+	   const u16 *language_name,
+	   const efi_string_t string,
+	   const struct efi_font_info *string_font_info)
+{
+	struct efi_hii_packagelist *hii = package_list;
+	struct efi_string_table *stbl;
+
+	EFI_ENTRY("%p, %p, %p, \"%s\", %p, \"%ls\", %p", this, package_list,
+		  string_id, language, language_name, string,
+		  string_font_info);
+
+	if (!package_list || !efi_hii_packagelist_exists(package_list))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (!string_id || !language || !string)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		if (language_match((char *)language, stbl->language)) {
+			efi_string_id_t new_id;
+			void *buf;
+			efi_string_t str;
+
+			new_id = ++hii->max_string_id;
+			if (stbl->nstrings < new_id) {
+				buf = realloc(stbl->strings,
+					      sizeof(stbl->strings[0])
+						* new_id);
+				if (!buf)
+					return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+				memset(&stbl->strings[stbl->nstrings], 0,
+				       (new_id - stbl->nstrings)
+					 * sizeof(stbl->strings[0]));
+				stbl->strings = buf;
+				stbl->nstrings = new_id;
+			}
+
+			str = u16_strdup(string);
+			if (!str)
+				return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+			stbl->strings[new_id - 1].string = str;
+			*string_id = new_id;
+
+			return EFI_EXIT(EFI_SUCCESS);
+		}
+	}
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+get_string(const struct efi_hii_string_protocol *this,
+	   const u8 *language,
+	   efi_hii_handle_t package_list,
+	   efi_string_id_t string_id,
+	   efi_string_t string,
+	   efi_uintn_t *string_size,
+	   struct efi_font_info **string_font_info)
+{
+	struct efi_hii_packagelist *hii = package_list;
+	struct efi_string_table *stbl;
+
+	EFI_ENTRY("%p, \"%s\", %p, %u, %p, %p, %p", this, language,
+		  package_list, string_id, string, string_size,
+		  string_font_info);
+
+	if (!package_list || !efi_hii_packagelist_exists(package_list))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		if (language_match((char *)language, stbl->language)) {
+			efi_string_t str;
+			size_t len;
+
+			if (stbl->nstrings < string_id)
+				return EFI_EXIT(EFI_NOT_FOUND);
+
+			str = stbl->strings[string_id - 1].string;
+			if (str) {
+				len = (u16_strlen(str) + 1) * sizeof(u16);
+				if (*string_size < len) {
+					*string_size = len;
+
+					return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+				}
+				memcpy(string, str, len);
+				*string_size = len;
+			} else {
+				return EFI_EXIT(EFI_NOT_FOUND);
+			}
+
+			return EFI_EXIT(EFI_SUCCESS);
+		}
+	}
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+set_string(const struct efi_hii_string_protocol *this,
+	   efi_hii_handle_t package_list,
+	   efi_string_id_t string_id,
+	   const u8 *language,
+	   const efi_string_t string,
+	   const struct efi_font_info *string_font_info)
+{
+	struct efi_hii_packagelist *hii = package_list;
+	struct efi_string_table *stbl;
+
+	EFI_ENTRY("%p, %p, %u, \"%s\", \"%ls\", %p", this, package_list,
+		  string_id, language, string, string_font_info);
+
+	if (!package_list || !efi_hii_packagelist_exists(package_list))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (string_id > hii->max_string_id)
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (!string || !language)
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		if (language_match((char *)language, stbl->language)) {
+			efi_string_t str;
+
+			if (hii->max_string_id < string_id)
+				return EFI_EXIT(EFI_NOT_FOUND);
+
+			if (stbl->nstrings < string_id) {
+				void *buf;
+
+				buf = realloc(stbl->strings,
+					      string_id
+						* sizeof(stbl->strings[0]));
+				if (!buf)
+					return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+				memset(&stbl->strings[string_id - 1], 0,
+				       (string_id - stbl->nstrings)
+					 * sizeof(stbl->strings[0]));
+				stbl->strings = buf;
+			}
+
+			str = u16_strdup(string);
+			if (!str)
+				return EFI_EXIT(EFI_OUT_OF_RESOURCES);
+
+			free(stbl->strings[string_id - 1].string);
+			stbl->strings[string_id - 1].string = str;
+
+			return EFI_EXIT(EFI_SUCCESS);
+		}
+	}
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+static efi_status_t EFIAPI
+get_languages(const struct efi_hii_string_protocol *this,
+	      efi_hii_handle_t package_list,
+	      u8 *languages,
+	      efi_uintn_t *languages_size)
+{
+	struct efi_hii_packagelist *hii = package_list;
+	struct efi_string_table *stbl;
+	size_t len = 0;
+	char *p;
+
+	EFI_ENTRY("%p, %p, %p, %p", this, package_list, languages,
+		  languages_size);
+
+	if (!package_list || !efi_hii_packagelist_exists(package_list))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (!languages_size ||
+	    (*languages_size && !languages))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	/* figure out required size: */
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		len += strlen((char *)stbl->language) + 1;
+	}
+
+	if (*languages_size < len) {
+		*languages_size = len;
+
+		return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+	}
+
+	p = (char *)languages;
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		if (p != (char *)languages)
+			*p++ = ';';
+		strcpy(p, stbl->language);
+		p += strlen((char *)stbl->language);
+	}
+	*p = '\0';
+
+	debug("languages: %s\n", languages);
+
+	return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI
+get_secondary_languages(const struct efi_hii_string_protocol *this,
+			efi_hii_handle_t package_list,
+			const u8 *primary_language,
+			u8 *secondary_languages,
+			efi_uintn_t *secondary_languages_size)
+{
+	struct efi_hii_packagelist *hii = package_list;
+	struct efi_string_table *stbl;
+	bool found = false;
+
+	EFI_ENTRY("%p, %p, \"%s\", %p, %p", this, package_list,
+		  primary_language, secondary_languages,
+		  secondary_languages_size);
+
+	if (!package_list || !efi_hii_packagelist_exists(package_list))
+		return EFI_EXIT(EFI_NOT_FOUND);
+
+	if (!secondary_languages_size ||
+	    (*secondary_languages_size && !secondary_languages))
+		return EFI_EXIT(EFI_INVALID_PARAMETER);
+
+	list_for_each_entry(stbl, &hii->string_tables, link) {
+		if (language_match((char *)primary_language, stbl->language)) {
+			found = true;
+			break;
+		}
+	}
+	if (!found)
+		return EFI_EXIT(EFI_INVALID_LANGUAGE);
+
+	/*
+	 * TODO: What is secondary language?
+	 * *secondary_languages = '\0';
+	 * *secondary_languages_size = 0;
+	 */
+
+	return EFI_EXIT(EFI_NOT_FOUND);
+}
+
+const struct efi_hii_string_protocol efi_hii_string = {
+	.new_string = new_string,
+	.get_string = get_string,
+	.set_string = set_string,
+	.get_languages = get_languages,
+	.get_secondary_languages = get_secondary_languages
+};