88 lines
No EOL
3.8 KiB
C
88 lines
No EOL
3.8 KiB
C
/*********************************************************************************/
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/* Module Name: entry.c */
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/* Project: AurixOS */
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/* */
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/* Copyright (c) 2024-2025 Jozef Nagy */
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/* */
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/* This source is subject to the MIT License. */
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/* See License.txt in the root of this repository. */
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/* All other rights reserved. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
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/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
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/* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
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/* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
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/* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
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/* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE */
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/* SOFTWARE. */
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/*********************************************************************************/
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#include <driver.h>
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#include <config/config.h>
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#include <mm/mman.h>
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#include <lib/string.h>
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#include <vfs/vfs.h>
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#include <print.h>
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#include <efi.h>
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#include <efilib.h>
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#include <stdbool.h>
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bool verify_secure_boot()
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{
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EFI_GUID var_guid = EFI_GLOBAL_VARIABLE;
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EFI_UINT8 val = 0;
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EFI_UINTN size = sizeof(val);
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bool ret = 0;
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if (!EFI_ERROR(gSystemTable->RuntimeServices->GetVariable(L"SecureBoot", &var_guid, NULL, &size, &val))) {
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debug("verify_secure_boot(): Secure Boot Status: %u\n", val);
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ret = (bool)val;
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if (!EFI_ERROR(gSystemTable->RuntimeServices->GetVariable(L"SetupMode", &var_guid, NULL, &size, &val)) && val != 0) {
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ret = false;
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}
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}
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return !ret;
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}
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void load_drivers()
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{
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EFI_STATUS status;
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if (!verify_secure_boot()) {
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debug("load_drivers(): Secure boot is enabled! Won't load drivers...\n");
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return;
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}
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// TODO: Create a vfs_list() function to get a list of files in a directory
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// char *driver_path = "\\AxBoot\\drivers\\.efi";
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// char *driver_binary;
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// debug("load_drivers(): Loading '%s'...\n", driver_name);
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//
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// size_t driver_size = vfs_read(driver_path, &driver_binary);
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//
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// driver_devpath[0].Header.Length[0] = sizeof(EFI_MEMMAP_DEVICE_PATH);
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// driver_devpath[0].Header.Length[1] = sizeof(EFI_MEMMAP_DEVICE_PATH) >> 8;
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// driver_devpath[0].Header.Type = 1;
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// driver_devpath[0].Header.SubType = 3;
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// driver_devpath[0].MemoryType = EfiLoaderData;
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// driver_devpath[0].StartingAddress = (EFI_UINTPTR)driver_binary;
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// driver_devpath[0].EndingAddress = (EFI_UINTPTR)driver_binary + driver_size;
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// driver_devpath[1].Header.Length[0] = sizeof(EFI_DEVICE_PATH_PROTOCOL);
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// driver_devpath[1].Header.Length[1] = sizeof(EFI_DEVICE_PATH_PROTOCOL) >> 8;
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// driver_devpath[1].Header.Type = 0x7F;
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// driver_devpath[1].Header.SubType = 0xFF;
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//
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// status = gSystemTable->BootServices->LoadImage(EFI_FALSE, gImageHandle, (EFI_DEVICE_PATH_PROTOCOL *)driver_devpath, driver_binary, driver_size, &driver_handle);
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// if (EFI_ERROR(status)) {
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// debug("load_drivers(): Failed to load driver '%s': %s (%llx)\n", driver_name, efi_status_to_str(status), status);
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// return;
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// }
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//
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// status = gSystemTable->BootServices->StartImage(driver_handle, NULL, NULL);
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// if (EFI_ERROR(status)) {
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// debug("load_drivers(): Failed to start driver '%s': %s (%llx)\n", driver_name, efi_status_to_str(status), status);
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// return;
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// }
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} |