setos

commit 091b5ebb01235e3ac673167c041f29762839404c
parent 990e3f256078c75d2032d1846f71af7ec99fdafe
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Tue, 19 Mar 2024 15:39:19 +0900

wip: open root directory

Diffstat:
M
Makefile
 | 
1
+
M
loader.c
 | 
16
++++++++++++++++
M
uefi.h
 | 
33
++++++++++++++++++++++++++++++++-

3 files changed, 49 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
@@ -16,6 +16,7 @@ disk.img: loader.efi kernel.elf
 	doas mount disk.img image
 	doas mkdir -p image/EFI/BOOT
 	doas cp loader.efi image/EFI/BOOT/BOOTX64.EFI
+	doas cp kernel.elf image/EFI/BOOT/kernel.elf
 	doas umount image
 
 loader.dll: $(SRC) $(HDR)
diff --git a/loader.c b/loader.c
@@ -1,6 +1,8 @@
 #include "uefi.h"
 #include "utils.h"
 
+#define NULL 0L
+
 EFI_SYSTEM_TABLE *SystemTable;
 
 EFI_STATUS
@@ -49,3 +51,16 @@ EfiMain(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *systab)
 
 	return EFI_SUCCESS;
 }
+
+EFI_STATUS
+open_root(EFI_HANDLE ImageHandle, EFI_FILE_PROTOCOL **root)
+{
+	EFI_STATUS stat;
+
+	stat = SystemTable->BootServices->OpenProtocol(
+		ImageHandle, &(EFI_GUID) EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID,
+		NULL, ImageHandle, ImageHandle, 0
+		);
+
+	return stat;
+}
+\ No newline at end of file
diff --git a/uefi.h b/uefi.h
@@ -6,6 +6,7 @@
 
 typedef unsigned short CHAR16;
 typedef unsigned long long UINTN;
+typedef unsigned char UINT8;
 typedef unsigned short UINT16;
 typedef unsigned UINT32;
 typedef unsigned long long UINT64;
@@ -13,6 +14,16 @@ typedef UINTN EFI_STATUS;
 typedef void *EFI_HANDLE;
 typedef UINT64 EFI_PHYSICAL_ADDRESS;
 typedef UINT64 EFI_VIRTUAL_ADDRESS;
+typedef void VOID;
+typedef struct EFI_GUID {
+	UINT32 Data1;
+	UINT16 Data2;
+	UINT16 Data3;
+	UINT8  Data4[8];
+} EFI_GUID;
+
+#define EFI_SIMPLE_FILE_SYSTEM_PROTOCOL_GUID \
+	{0x964e5b22, 0x6459, 0x11d2, {0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b}}
 
 // EFI_STATUS
 enum {
@@ -85,6 +96,10 @@ typedef struct {
 	UINT64 Attribute;
 } EFI_MEMORY_DESCRIPTOR;
 
+typedef struct _EFI_FILE_PROTOCOL {
+
+} EFI_FILE_PROTOCOL;
+
 typedef
 EFI_STATUS (EFIAPI *EFI_GET_MEMORY_MAP)(
 	IN OUT UINTN *MemoryMapSize,
@@ -98,6 +113,16 @@ typedef
 EFI_STATUS (EFIAPI *EFI_EXIT_BOOT_SERVICES)(
 	);
 
+typedef
+EFI_STATUS (EFIAPI *EFI_OPEN_PROTOCOL)(
+	IN EFI_HANDLE Handle,
+	IN EFI_GUID   *Protocol,
+	OUT VOID      **Interface OPTIONAL,
+	IN EFI_HANDLE AgentHandle,
+	IN EFI_HANDLE ControllerHandle,
+	IN UINT32     Attributes
+	);
+
 typedef struct {
 } EFI_RUNTIME_SERVICES;
 
@@ -124,7 +149,13 @@ typedef struct {
 	// image services
 	void *image_services0[4];
 	EFI_EXIT_BOOT_SERVICES ExitBootServices;
-	void *dummy[17];
+	void *miscellaneus_services[3];
+	void *driversupport_services[2];
+	EFI_OPEN_PROTOCOL OpenProtocol;
+	void *open_and_close_protocol_services[2];
+	void *library_servies[5];
+	void *crc_services[1];
+	void *miscellaneus_services1[3];
 } EFI_BOOT_SERVICES;
 
 typedef struct {