The patch implements the EFI_UNICODE_COLLATION_PROTOCOL.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v2: add more comments --- MAINTAINERS | 2 + include/cp1250.h | 40 +++ include/cp437.h | 40 +++ include/efi_api.h | 21 ++ include/efi_loader.h | 5 + lib/efi_loader/Makefile | 18 +- lib/efi_loader/efi_boottime.c | 6 + lib/efi_loader/efi_unicode_collation.c | 329 +++++++++++++++++++++++++ 8 files changed, 457 insertions(+), 4 deletions(-) create mode 100644 include/cp1250.h create mode 100644 include/cp437.h create mode 100644 lib/efi_loader/efi_unicode_collation.c
diff --git a/MAINTAINERS b/MAINTAINERS index 8c9cd83347..67b015205c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -382,6 +382,8 @@ F: doc/README.uefi F: doc/README.iscsi F: Documentation/efi.rst F: include/capitalization.h +F: include/cp1250.h +F: include/cp437.h F: include/efi* F: include/pe.h F: include/asm-generic/pe.h diff --git a/include/cp1250.h b/include/cp1250.h new file mode 100644 index 0000000000..adacf8a958 --- /dev/null +++ b/include/cp1250.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +/* + * Constant CP1250 contains the Unicode code points for characters 0x80 - 0xff + * of the code page 1250. + */ +#define CP1250 { \ + 0x20ac, 0x0000, 0x201a, 0x0000, \ + 0x201e, 0x2026, 0x2020, 0x2021, \ + 0x0000, 0x2030, 0x0160, 0x2039, \ + 0x015a, 0x0164, 0x017d, 0x0179, \ + 0x0000, 0x2018, 0x2019, 0x201c, \ + 0x201d, 0x2022, 0x2013, 0x2014, \ + 0x0000, 0x2122, 0x0161, 0x203a, \ + 0x015b, 0x0165, 0x017e, 0x017a, \ + 0x00a0, 0x02c7, 0x02d8, 0x0141, \ + 0x00a4, 0x0104, 0x00a6, 0x00a7, \ + 0x00a8, 0x00a9, 0x015e, 0x00ab, \ + 0x00ac, 0x00ad, 0x00ae, 0x017b, \ + 0x00b0, 0x00b1, 0x02db, 0x0142, \ + 0x00b4, 0x00b5, 0x00b6, 0x00b7, \ + 0x00b8, 0x0105, 0x015f, 0x00bb, \ + 0x013d, 0x02dd, 0x013e, 0x017c, \ + 0x0154, 0x00c1, 0x00c2, 0x0102, \ + 0x00c4, 0x0139, 0x0106, 0x00c7, \ + 0x010c, 0x00c9, 0x0118, 0x00cb, \ + 0x011a, 0x00cd, 0x00ce, 0x010e, \ + 0x0110, 0x0143, 0x0147, 0x00d3, \ + 0x00d4, 0x0150, 0x00d6, 0x00d7, \ + 0x0158, 0x016e, 0x00da, 0x0170, \ + 0x00dc, 0x00dd, 0x0162, 0x00df, \ + 0x0155, 0x00e1, 0x00e2, 0x0103, \ + 0x00e4, 0x013a, 0x0107, 0x00e7, \ + 0x010d, 0x00e9, 0x0119, 0x00eb, \ + 0x011b, 0x00ed, 0x00ee, 0x010f, \ + 0x0111, 0x0144, 0x0148, 0x00f3, \ + 0x00f4, 0x0151, 0x00f6, 0x00f7, \ + 0x0159, 0x016f, 0x00fa, 0x0171, \ + 0x00fc, 0x00fd, 0x0163, 0x02d9, \ +} diff --git a/include/cp437.h b/include/cp437.h new file mode 100644 index 0000000000..0b2b97132e --- /dev/null +++ b/include/cp437.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +/* + * Constant CP437 contains the Unicode code points for characters 0x80 - 0xff + * of the code page 437. + */ +#define CP437 { \ + 0x00c7, 0x00fc, 0x00e9, 0x00e2, \ + 0x00e4, 0x00e0, 0x00e5, 0x00e7, \ + 0x00ea, 0x00eb, 0x00e8, 0x00ef, \ + 0x00ee, 0x00ec, 0x00c4, 0x00c5, \ + 0x00c9, 0x00e6, 0x00c6, 0x00f4, \ + 0x00f6, 0x00f2, 0x00fb, 0x00f9, \ + 0x00ff, 0x00d6, 0x00dc, 0x00a2, \ + 0x00a3, 0x00a5, 0x20a7, 0x0192, \ + 0x00e1, 0x00ed, 0x00f3, 0x00fa, \ + 0x00f1, 0x00d1, 0x00aa, 0x00ba, \ + 0x00bf, 0x2310, 0x00ac, 0x00bd, \ + 0x00bc, 0x00a1, 0x00ab, 0x00bb, \ + 0x2591, 0x2592, 0x2593, 0x2502, \ + 0x2524, 0x2561, 0x2562, 0x2556, \ + 0x2555, 0x2563, 0x2551, 0x2557, \ + 0x255d, 0x255c, 0x255b, 0x2510, \ + 0x2514, 0x2534, 0x252c, 0x251c, \ + 0x2500, 0x253c, 0x255e, 0x255f, \ + 0x255a, 0x2554, 0x2569, 0x2566, \ + 0x2560, 0x2550, 0x256c, 0x2567, \ + 0x2568, 0x2564, 0x2565, 0x2559, \ + 0x2558, 0x2552, 0x2553, 0x256b, \ + 0x256a, 0x2518, 0x250c, 0x2588, \ + 0x2584, 0x258c, 0x2590, 0x2580, \ + 0x03b1, 0x00df, 0x0393, 0x03c0, \ + 0x03a3, 0x03c3, 0x00b5, 0x03c4, \ + 0x03a6, 0x0398, 0x03a9, 0x03b4, \ + 0x221e, 0x03c6, 0x03b5, 0x2229, \ + 0x2261, 0x00b1, 0x2265, 0x2264, \ + 0x2320, 0x2321, 0x00f7, 0x2248, \ + 0x00b0, 0x2219, 0x00b7, 0x221a, \ + 0x207f, 0x00b2, 0x25a0, 0x00a0, \ +} diff --git a/include/efi_api.h b/include/efi_api.h index ebf2a3bc18..1efc448184 100644 --- a/include/efi_api.h +++ b/include/efi_api.h @@ -31,6 +31,7 @@ enum efi_timer_delay { EFI_TIMER_RELATIVE = 2 };
+#define efi_intn_t ssize_t #define efi_uintn_t size_t typedef uint16_t *efi_string_t;
@@ -958,4 +959,24 @@ struct efi_driver_binding_protocol { efi_handle_t driver_binding_handle; };
+#define EFI_UNICODE_COLLATION_PROTOCOL2_GUID \ + EFI_GUID(0xa4c751fc, 0x23ae, 0x4c3e, \ + 0x92, 0xe9, 0x49, 0x64, 0xcf, 0x63, 0xf3, 0x49) +struct efi_unicode_collation_protocol { + efi_intn_t (EFIAPI *stri_coll)( + struct efi_unicode_collation_protocol *this, u16 *s1, u16 *s2); + bool (EFIAPI *metai_match)(struct efi_unicode_collation_protocol *this, + const u16 *string, const u16 *patter); + void (EFIAPI *str_lwr)(struct efi_unicode_collation_protocol + *this, u16 *string); + void (EFIAPI *str_upr)(struct efi_unicode_collation_protocol *this, + u16 *string); + void (EFIAPI *fat_to_str)(struct efi_unicode_collation_protocol *this, + efi_uintn_t fat_size, char *fat, u16 *string); + bool (EFIAPI *str_to_fat)(struct efi_unicode_collation_protocol *this, + const u16 *string, efi_uintn_t fat_size, + char *fat); + char *supported_languages; +}; + #endif diff --git a/include/efi_loader.h b/include/efi_loader.h index f162adfff7..c5ae7c3c36 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -98,6 +98,9 @@ extern const struct efi_device_path_to_text_protocol efi_device_path_to_text; /* implementation of the EFI_DEVICE_PATH_UTILITIES_PROTOCOL */ extern const struct efi_device_path_utilities_protocol efi_device_path_utilities; +/* Implementation of the EFI_UNICODE_COLLATION_PROTOCOL */ +extern const struct efi_unicode_collation_protocol + efi_unicode_collation_protocol;
uint16_t *efi_dp_str(struct efi_device_path *dp);
@@ -127,6 +130,8 @@ extern const efi_guid_t efi_file_info_guid; /* GUID for file system information */ 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 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 1ffbf52a89..0769df20f7 100644 --- a/lib/efi_loader/Makefile +++ b/lib/efi_loader/Makefile @@ -17,10 +17,20 @@ always += helloworld.efi endif
obj-$(CONFIG_CMD_BOOTEFI_HELLO) += helloworld_efi.o -obj-y += efi_image_loader.o efi_boottime.o efi_runtime.o efi_console.o -obj-y += efi_memory.o efi_device_path_to_text.o efi_device_path.o -obj-y += efi_device_path_utilities.o efi_file.o efi_variable.o efi_bootmgr.o -obj-y += efi_watchdog.o +obj-y += \ +efi_bootmgr.o \ +efi_boottime.o \ +efi_console.o \ +efi_device_path.o \ +efi_device_path_to_text.o \ +efi_device_path_utilities.o \ +efi_file.o \ +efi_image_loader.o \ +efi_memory.o \ +efi_runtime.o \ +efi_unicode_collation.o \ +efi_variable.o \ +efi_watchdog.o obj-$(CONFIG_LCD) += efi_gop.o obj-$(CONFIG_DM_VIDEO) += efi_gop.o obj-$(CONFIG_PARTITIONS) += efi_disk.o diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index cd5fdb7aa8..f9f59b93f9 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -1527,6 +1527,12 @@ efi_status_t efi_setup_loaded_image( if (ret != EFI_SUCCESS) goto failure;
+ ret = efi_add_protocol(obj->handle, + &efi_guid_unicode_collation_protocol, + (void *)&efi_unicode_collation_protocol); + 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_unicode_collation.c b/lib/efi_loader/efi_unicode_collation.c new file mode 100644 index 0000000000..2c1e819174 --- /dev/null +++ b/lib/efi_loader/efi_unicode_collation.c @@ -0,0 +1,329 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * EFI Unicode collation protocol + * + * Copyright (c) 2018 Heinrich Schuchardt xypron.glpk@gmx.de + */ + +#include <common.h> +#include <charset.h> +#include <cp1250.h> +#include <cp437.h> +#include <efi_loader.h> + +/* Characters that may not be used in file names */ +static const char illegal[] = "<>:"/\|?*"; + +/* + * EDK2 assumes codepage 1250 when creating FAT 8.3 file names. + * Linux defaults to codepage 437 for FAT 8.3 file names. + */ +#if CONFIG_FAT_DEFAULT_CODEPAGE == 1250 +/* Unicode code points for code page 1250 characters 0x80 - 0xff */ +static const u16 codepage[] = CP1250; +#else +/* Unicode code points for code page 437 characters 0x80 - 0xff */ +static const u16 codepage[] = CP437; +#endif + +/* GUID of the EFI_UNICODE_COLLATION_PROTOCOL */ +const efi_guid_t efi_guid_unicode_collation_protocol = + EFI_UNICODE_COLLATION_PROTOCOL2_GUID; + +/** + * efi_stri_coll() - compare utf-16 strings case-insenitively + * + * @this: unicode collation protocol instance + * @s1: first string + * @s2: second string + * + * This function implements the StriColl() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + * + * See the Unified Extensible Firmware Interface (UEFI) specification for + * details. + * + * TODO: + * The implementation does not follow the Unicode collation algorithm. + * For ASCII characters it results in the same sort order as EDK2. + * We could use table UNICODE_CAPITALIZATION_TABLE for better results. + * + * Return: 0: s1 == s2, > 0: s1 > s2, < 0: s1 < s2 + */ +static efi_intn_t EFIAPI efi_stri_coll( + struct efi_unicode_collation_protocol *this, u16 *s1, u16 *s2) +{ + s32 c1, c2; + efi_intn_t ret = 0; + + EFI_ENTRY("%p, %ls, %ls", this, s1, s2); + for (; *s1 | *s2; ++s1, ++s2) { + c1 = utf_to_upper(*s1); + c2 = utf_to_upper(*s2); + if (c1 < c2) { + ret = -1; + goto out; + } else if (c1 > c2) { + ret = 1; + goto out; + } + } +out: + EFI_EXIT(EFI_SUCCESS); + return ret; +} + +/** + * metai_match() - compare utf-16 string with a pattern string case-insenitively + * + * @s: string to compare + * @p: pattern string + * + * The pattern string may use these: + * - * matches >= 0 characters + * - ? matches 1 character + * - [<char1><char2>...<charN>] match any character in the set + * - [<char1>-<char2>] matches any character in the range + * + * This function is called my efi_metai_match(). + * + * For '*' pattern searches this function calls itself recursively. + * Performance-wise this is suboptimal, especially for multiple '*' wildcards. + * But it results in simple code. + * + * Return: true if the string is matched. + */ +static bool metai_match(const u16 *s, const u16 *p) +{ + u16 first; + + for (; *s && *p; ++s, ++p) { + switch (*p) { + case '*': + /* Match 0 or more characters */ + ++p; + for (;; ++s) { + if (metai_match(s, p)) + return true; + if (!*s) + return false; + } + case '?': + /* Match any one character */ + break; + case '[': + /* Match any character in the set */ + ++p; + first = *p; + if (first == ']') + /* Empty set */ + return false; + ++p; + if (*p == '-') { + /* Range */ + ++p; + if (*s < first || *s > *p) + return false; + ++p; + if (*p != ']') + return false; + } else { + /* Set */ + bool hit = false; + + if (*s == first) + hit = true; + for (; *p && *p != ']'; ++p) { + if (*p == *s) + hit = true; + } + if (!hit || *p != ']') + return false; + } + break; + default: + /* Match one character */ + if (*p != *s) + return false; + } + } + if (!*p && !*s) + return true; + return false; +} + +/** + * efi_metai_match() - compare utf-16 string with a pattern string + * case-insenitively + * + * @this: unicode collation protocol instance + * @s: string to compare + * @p: pattern string + * + * The pattern string may use these: + * - * matches >= 0 characters + * - ? matches 1 character + * - [<char1><char2>...<charN>] match any character in the set + * - [<char1>-<char2>] matches any character in the range + * + * This function implements the MetaMatch() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + * + * Return: true if the string is matched. + */ +static bool EFIAPI efi_metai_match(struct efi_unicode_collation_protocol *this, + const u16 *string, const u16 *pattern) +{ + bool ret; + + EFI_ENTRY("%p, %ls, %ls", this, string, pattern); + ret = metai_match(string, pattern); + EFI_EXIT(EFI_SUCCESS); + return ret; +} + +/** + * efi_str_lwr() - convert to lower case + * + * @this: unicode collation protocol instance + * @string: string to convert + * @p: pattern string + * + * The conversion is done in place. As long as upper and lower letters use the + * same number of words this does not pose a problem. + * + * This function implements the StrLwr() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + */ +static void EFIAPI efi_str_lwr(struct efi_unicode_collation_protocol *this, + u16 *string) +{ + EFI_ENTRY("%p, %ls", this, string); + for (; *string; ++string) + *string = utf_to_lower(*string); + EFI_EXIT(EFI_SUCCESS); +} + +/** + * efi_str_upr() - convert to upper case + * + * @this: unicode collation protocol instance + * @string: string to convert + * @p: pattern string + * + * The conversion is done in place. As long as upper and lower letters use the + * same number of words this does not pose a problem. + * + * This function implements the StrUpr() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + */ +static void EFIAPI efi_str_upr(struct efi_unicode_collation_protocol *this, + u16 *string) +{ + EFI_ENTRY("%p, %ls", this, string); + for (; *string; ++string) + *string = utf_to_upper(*string); + EFI_EXIT(EFI_SUCCESS); +} + +/** + * efi_fat_to_str() - convert an 8.3 file name from an OEM codepage to Unicode + * + * @this: unicode collation protocol instance + * @fat_size: size of the string to convert + * @fat: string to convert + * @string: converted string + * + * This function implements the FatToStr() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + */ +static void EFIAPI efi_fat_to_str(struct efi_unicode_collation_protocol *this, + efi_uintn_t fat_size, char *fat, u16 *string) +{ + efi_uintn_t i; + u16 c; + + EFI_ENTRY("%p, %zu, %s, %p", this, fat_size, fat, string); + for (i = 0; i < fat_size; ++i) { + c = (unsigned char)fat[i]; + if (c > 0x80) + c = codepage[i - 0x80]; + string[i] = c; + if (!c) + break; + } + string[i] = 0; + EFI_EXIT(EFI_SUCCESS); +} + +/** + * efi_fat_to_str() - convert a utf-16 string to legal characters for a FAT + * file name in an OEM code page + * + * @this: unicode collation protocol instance + * @string: Unicode string to convert + * @fat_size: size of the target buffer + * @fat: converted string + * + * This function implements the StrToFat() service of the + * EFI_UNICODE_COLLATION_PROTOCOL. + * + * Return: true if an illegal character was substituted by '_'. + */ +static bool EFIAPI efi_str_to_fat(struct efi_unicode_collation_protocol *this, + const u16 *string, efi_uintn_t fat_size, + char *fat) +{ + efi_uintn_t i; + s32 c; + bool ret = false; + + EFI_ENTRY("%p, %ls, %zu, %p", this, string, fat_size, fat); + for (i = 0; i < fat_size;) { + c = utf16_get(&string); + switch (c) { + /* Ignore period and space */ + case '.': + case ' ': + continue; + case 0: + break; + } + c = utf_to_upper(c); + if (c >= 0x80) { + int j; + + /* Look for codepage translation */ + for (j = 0; j < 0x80; ++j) { + if (c == codepage[j]) { + c = j + 0x80; + break; + } + } + if (j >= 0x80) { + c = '_'; + ret = true; + } + } else if (c && (c < 0x20 || strchr(illegal, c))) { + c = '_'; + ret = true; + } + + fat[i] = c; + if (!c) + break; + ++i; + } + EFI_EXIT(EFI_SUCCESS); + return ret; +} + +const struct efi_unicode_collation_protocol efi_unicode_collation_protocol = { + .stri_coll = efi_stri_coll, + .metai_match = efi_metai_match, + .str_lwr = efi_str_lwr, + .str_upr = efi_str_upr, + .fat_to_str = efi_fat_to_str, + .str_to_fat = efi_str_to_fat, + .supported_languages = "en-US", +};