Changes in uspace/lib/mbr/libmbr.h [dc76f4a:9bdfde73] in mainline

File:

• uspace/lib/mbr/libmbr.h (modified) (3 diffs)

uspace/lib/mbr/libmbr.h

@@ -38 +38 @@
 
 #include <sys/types.h>
-#include "mbr.h"
 
 #define LIBMBR_NAME     "libmbr"
+
+#ifdef DEBUG_CONFIG
+#include <stdio.h>
+#include <str_error.h>
+#define DEBUG_PRINT_0(str) \
+        printf("%s:%d: " str, __FILE__, __LINE__)
+#define DEBUG_PRINT_1(str, arg1) \
+        printf("%s:%d: " str, __FILE__, __LINE__, arg1)
+#define DEBUG_PRINT_2(str, arg1, arg2) \
+        printf("%s:%d: " str, __FILE__, __LINE__, arg1, arg2)
+#define DEBUG_PRINT_3(str, arg1, arg2, arg3) \
+        printf("%s:%d: " str, __FILE__, __LINE__, arg1, arg2, arg3)
+#else
+#define DEBUG_PRINT_0(str)
+#define DEBUG_PRINT_1(str, arg1)
+#define DEBUG_PRINT_2(str, arg1, arg2)
+#define DEBUG_PRINT_3(str, arg1, arg2, arg3)
+#endif
+
+/** Number of primary partition records */
+#define N_PRIMARY               4
+
+/** Boot record signature */
+#define BR_SIGNATURE    0xAA55
+
+enum {
+        /** Non-bootable */
+        B_INACTIVE = 0x00,
+        /** Bootable */
+        B_ACTIVE = 0x80,
+        /** Anything else means invalid */
+};
 
 typedef enum {
@@ -49 +80 @@
         ST_LOGIC = 8
 } MBR_FLAGS;
+
+enum {
+        /** Unused partition entry */
+        PT_UNUSED       = 0x00,
+        /** Extended partition */
+        PT_EXTENDED     = 0x05,
+        /** Extended partition with LBA */
+        PT_EXTENDED_LBA = 0x0F,
+        /** GPT Protective partition */
+        PT_GPT  = 0xEE,
+};
 
 typedef enum {
@@ -71 +113 @@
 } mbr_err_val;
 
+
+/** Structure of a partition table entry */
+typedef struct {
+        uint8_t status;
+        /** CHS of fist block in partition */
+        uint8_t first_chs[3];
+        /** Partition type */
+        uint8_t ptype;
+        /** CHS of last block in partition */
+        uint8_t last_chs[3];
+        /** LBA of first block in partition */
+        uint32_t first_lba;
+        /** Number of blocks in partition */
+        uint32_t length;
+} __attribute__((packed)) pt_entry_t;
+
+/** Structure of a boot-record block */
+typedef struct {
+        /** Area for boot code */
+        uint8_t code_area[440];
+        /** Optional media ID */
+        uint32_t media_id;
+        /** Padding */
+        uint16_t pad0;
+        /** Partition table entries */
+        pt_entry_t pte[N_PRIMARY];
+        /** Boot record block signature (@c BR_SIGNATURE) */
+        uint16_t signature;
+} __attribute__((packed)) br_block_t;
+
 /** MBR header */
 typedef struct {