diff options
| author | Amlal <amlal@nekernel.org> | 2025-05-04 20:06:12 +0200 |
|---|---|---|
| committer | Amlal <amlal@nekernel.org> | 2025-05-04 20:06:12 +0200 |
| commit | cada70508de1c6f614067825683338fcde56caaf (patch) | |
| tree | ff62c02c5e3339d4a71976559d8b62dd04911c19 /lib | |
| parent | 1c8414d3348c55fcf132839a04fdedec5efaacbe (diff) | |
dev: add epm.tex, specification for the Explicit Partition Map.
Signed-off-by: Amlal <amlal@nekernel.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/partition-map.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/lib/partition-map.h b/lib/partition-map.h index 05ff83f..28d480a 100644 --- a/lib/partition-map.h +++ b/lib/partition-map.h @@ -1,6 +1,6 @@ /* ------------------------------------------- - Copyright (C) 2024, Amlal EL Mahrouss, all rights reserved. + Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved. ------------------------------------------- */ @@ -35,8 +35,9 @@ #define EPM_MAGIC "EPMMS" /* mass storage */ #endif -#define EPM_MAX_BLKS (128) /* 1 on UEFI EPM. */ +#define EPM_MAX_BLKS (128) /* 1 on UEFI EPM, because of it would only fit on a sector. */ +/// @brief Size of a partition block (roughly 512 bytes) #define EPM_PART_BLK_SZ sizeof(struct part_block) /// @brief Start of EPM headers. @@ -81,11 +82,11 @@ typedef struct part_block part_block_t; ///! @brief variant enum. ///! use it in the boot block version field. enum { - EPM_INVALID = 0x00, - EPM_GENERIC_OS = 0xcf, - EPM_LINUX = 0x8f, - EPM_BSD = 0x9f, - EPM_ZKAOS = 0x1f, + EPM_INVALID = 0x00, + EPM_GENERIC_OS = 0xcf, + EPM_LINUX = 0x8f, + EPM_BSD = 0x9f, + EPM_NEKERNEL_OS = 0x1f, }; /// @brief check for supported filesystem. @@ -95,6 +96,8 @@ boolean cb_filesystem_exists(caddr_t fs, size_t len); bool cb_parse_partition_block_data_at(voidptr_t blob, size_t blob_sz, size_t index, size_t* end_lba, size_t* start_lba, size_t* sector_sz); +/// @brief Parse Partition block info at index. +/// @param index the partition block to parse. part_block_t* cb_parse_partition_block_at(voidptr_t blob, size_t blob_sz, size_t index); #endif // ifndef __PARTITION_MAP_H__ |