diff options
| author | Michael Brown <mcb30@ipxe.org> | 2024-03-06 08:55:55 +0000 |
|---|---|---|
| committer | Michael Brown <mcb30@ipxe.org> | 2024-03-06 16:11:29 +0000 |
| commit | cea22d76e4cfdbd2d5a3a29bd541346710760457 (patch) | |
| tree | 989f3ba4e8c9a604ecf060ce5aa5ce53dd526cca /src/interface | |
| parent | c4471e3408d85c51a69991974985fe283d869eac (diff) | |
| download | ipxe-cea22d76e4cfdbd2d5a3a29bd541346710760457.tar.gz | |
[block] Allow SAN boot device to be identified by UUID
Add a "--uuid" option which may be used to specify a boot device UUID,
to be matched against the GPT partition GUID.
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/interface')
| -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: |