lots of new stuff. new memory manager, some stuff on file plumbing

1 files changed, 69 insertions, 0 deletions

diff --git a/src/kernel/gpt.h b/src/kernel/gpt.h
new file mode 100644
index 0000000..fb872df
--- /dev/null
+++ b/src/kernel/gpt.h
@@ -0,0 +1,69 @@
+/*
+Copyright 2019 Benji Dial
+
+Permission to use, copy, modify, and/or distribute this
+software for any purpose with or without fee is hereby
+granted, provided that the above copyright notice and this
+permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS
+ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
+EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+OF THIS SOFTWARE.
+*/
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#ifndef GPT_H
+#define GPT_H
+
+struct uuid {
+  uint64_t le;
+  uint64_t be;
+} __attribute__ ((__packed__));
+
+struct gpt_header {
+  uint8_t signature[8];
+  uint32_t version;
+  uint32_t header_length;
+  uint32_t check;//crc
+  uint32_t spacing;
+  uint64_t head_sector;
+  uint64_t head_backup_sector;
+  uint64_t data_start;
+  uint64_t data_last;
+  struct uuid id;
+  uint64_t pt_sector;
+  uint32_t n_parts;
+  uint32_t part_size;
+  uint32_t pt_check;
+} __attribute__ ((__packed__));
+
+struct gpt_entry {
+  struct uuid type;
+  struct uuid id;
+  uint64_t sector;
+  uint64_t last_sector;
+  uint64_t flags;
+  uint8_t name[72];
+} __attribute__ ((__packed__));
+
+enum type_le {
+  GPT_ESP_LE  = 0xc12a7328f81f11d2,
+  GPT_BOOT_LE = 0x2168614864496e6f
+};
+
+enum type_be {
+  GPT_ESP_BE  = 0x3bc93ec9a0004bba,
+  GPT_BOOT_BE = 0x4946456465654e74
+};
+
+bool gpt_parse_pt(uint8_t dn, uint8_t *buffer);
+
+#endif
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