diff options
Diffstat (limited to 'src/interface/efi/efi_block.c')
| -rw-r--r-- | src/interface/efi/efi_block.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/interface/efi/efi_block.c b/src/interface/efi/efi_block.c index e81d6bb7e..f5b913f15 100644 --- a/src/interface/efi/efi_block.c +++ b/src/interface/efi/efi_block.c @@ -597,6 +597,7 @@ static int efi_block_match ( unsigned int drive, EFI_HANDLE handle, EFI_DEVICE_PATH_PROTOCOL *path; void *interface; } u; + union uuid guid; EFI_STATUS efirc; int rc; @@ -623,6 +624,21 @@ static int efi_block_match ( unsigned int drive, EFI_HANDLE handle, DBGC ( drive, "EFIBLK %#02x contains filesystem %s\n", drive, efi_devpath_text ( u.path ) ); + /* Check if filesystem matches GUID, if applicable */ + if ( config->uuid ) { + if ( ( rc = efi_path_guid ( u.path, &guid ) ) != 0 ) { + DBGC ( drive, "EFIBLK %#02x could not determine GUID: " + "%s\n", drive, strerror ( rc ) ); + goto err_no_guid; + } + if ( memcmp ( config->uuid, &guid, sizeof ( guid ) ) != 0 ) { + DBGC ( drive, "EFIBLK %#02x has wrong GUID %s\n", + drive, uuid_ntoa ( &guid ) ); + rc = -ENOENT; + goto err_wrong_guid; + } + } + /* Check if filesystem contains boot filename */ if ( ( rc = efi_block_filename ( drive, handle, config->filename ) ) != 0 ) { @@ -633,6 +649,8 @@ static int efi_block_match ( unsigned int drive, EFI_HANDLE handle, rc = 0; err_filename: + err_wrong_guid: + err_no_guid: err_not_child: bs->CloseProtocol ( handle, protocol, efi_image_handle, handle ); err_open: |