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Bootmgr (FreeBSD): add support

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This commit is contained in:
Carter Li 2024-05-16 10:59:10 +08:00
parent 445dd94b53
commit 49080c5361
2 changed files with 62 additions and 1 deletions
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2
CMakeLists.txt
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@ -523,7 +523,7 @@ elseif(BSD)
src/detection/bios/bios_bsd.c
src/detection/bluetooth/bluetooth_linux.c
src/detection/board/board_bsd.c
src/detection/bootmgr/bootmgr_nosupport.c
src/detection/bootmgr/bootmgr_bsd.c
src/detection/brightness/brightness_bsd.c
src/detection/chassis/chassis_bsd.c
src/detection/cpu/cpu_bsd.c

61
src/detection/bootmgr/bootmgr_bsd.c Normal file
View File

@ -0,0 +1,61 @@
#include "bootmgr.h"
#include "efi.h"
#include "common/io/io.h"
#include <sys/efiio.h>
#include <sys/ioctl.h>
#include <fcntl.h>
const char* ffDetectBootmgr(FFBootmgrResult* result)
{
FF_AUTO_CLOSE_FD int efifd = open("/dev/efi", O_RDWR);
if (efifd < 0) return "open(/dev/efi) failed";
uint8_t buffer[2048];
struct efi_var_ioc ioc = {
.vendor = { 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, { 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c } },
.data = buffer,
};
ioc.datasize = sizeof(buffer);
ioc.name = (efi_char[]){ 'B', 'o', 'o', 't', 'C', 'u', 'r', 'r', 'e', 'n', 't', '\0' };
ioc.namesize = sizeof("BootCurrent") * 2;
if (ioctl(efifd, EFIIOC_VAR_GET, &ioc) < 0 || ioc.datasize != 2)
return "ioctl(EFIIOC_VAR_GET, BootCurrent) failed";
char hex[5];
snprintf(hex, sizeof(hex), "%04X", *(uint16_t*)buffer);
ioc.datasize = sizeof(buffer);
ioc.name = (efi_char[]){ 'B', 'o', 'o', 't', hex[0], hex[1], hex[2], hex[3], '\0' };
ioc.namesize = sizeof("Boot####") * 2;
if (ioctl(efifd, EFIIOC_VAR_GET, &ioc) < 0 || ioc.datasize == sizeof(buffer))
return "ioctl(EFIIOC_VAR_GET, Boot####) failed";
FFEfiLoadOption *efiOption = (FFEfiLoadOption *)buffer;
uint32_t descLen = 0;
while (efiOption->Description[descLen]) ++descLen;
if (descLen)
ffEfiUcs2ToUtf8(efiOption->Description, &result->name);
for (
ffEfiDevicePathProtocol* filePathList = (void*) &efiOption->Description[descLen + 1];
filePathList->Type != 0x7F; // End of Hardware Device Path
filePathList = (void*) ((uint8_t*) filePathList + filePathList->Length))
{
if (filePathList->Type == 4 && filePathList->SubType == 4)
{
// https://uefi.org/specs/UEFI/2.10/10_Protocols_Device_Path_Protocol.html#file-path-media-device-path
ffEfiUcs2ToUtf8((uint16_t*) filePathList->SpecificDevicePathData, &result->firmware);
break;
}
}
ioc.name = (efi_char[]){ 'S', 'e', 'c', 'u', 'r', 'e', 'B', 'o', 'o', 't', '\0' };
ioc.namesize = sizeof("SecureBoot") * 2;
ioc.datasize = sizeof(buffer);
if (ioctl(efifd, EFIIOC_VAR_GET, &ioc) == 0 && ioc.datasize == 1)
result->secureBoot = !!buffer[0];
return NULL;
}