[parted-devel] [PATCH 2/3] libparted: Add support for bls_boot to GPT disks

Brian C. Lane bcl at redhat.com
Fri Dec 20 20:39:26 GMT 2019


This sets the partition GUID to bc13c2ff-59e6-4262-a352-b275fd6f7172 to
indicate that the partition is a Boot Loader Specification compatible
/boot partition.
---
 doc/parted.texi          |  4 ++++
 include/parted/disk.in.h |  5 +++--
 libparted/disk.c         |  2 ++
 libparted/labels/gpt.c   | 47 +++++++++++++++++++++++++++++++++++++++-
 4 files changed, 55 insertions(+), 3 deletions(-)

diff --git a/doc/parted.texi b/doc/parted.texi
index f983d2c..213fc84 100644
--- a/doc/parted.texi
+++ b/doc/parted.texi
@@ -844,6 +844,10 @@ GRUB BIOS partition.
 (GPT) - this flag is used to tell special purpose software that the GPT
 partition may be bootable.
 
+ at item bls_boot
+(MS-DOS, GPT) - Enable this to indicate that the selected partition is a
+Linux Boot Loader Specification compatible /boot partition.
+
 @item boot
 (Mac, MS-DOS, PC98) - should be enabled if you want to boot off the
 partition.  The semantics vary between disk labels.  For MS-DOS disk
diff --git a/include/parted/disk.in.h b/include/parted/disk.in.h
index b257c27..fadb995 100644
--- a/include/parted/disk.in.h
+++ b/include/parted/disk.in.h
@@ -76,10 +76,11 @@ enum _PedPartitionFlag {
         PED_PARTITION_MSFT_DATA=16,
         PED_PARTITION_IRST=17,
         PED_PARTITION_ESP=18,
-        PED_PARTITION_CHROMEOS_KERNEL=19
+        PED_PARTITION_CHROMEOS_KERNEL=19,
+        PED_PARTITION_BLS_BOOT=20
 };
 #define PED_PARTITION_FIRST_FLAG        PED_PARTITION_BOOT
-#define PED_PARTITION_LAST_FLAG         PED_PARTITION_CHROMEOS_KERNEL
+#define PED_PARTITION_LAST_FLAG         PED_PARTITION_BLS_BOOT
 
 enum _PedDiskTypeFeature {
         PED_DISK_TYPE_EXTENDED=1,       /**< supports extended partitions */
diff --git a/libparted/disk.c b/libparted/disk.c
index d1f1077..099837b 100644
--- a/libparted/disk.c
+++ b/libparted/disk.c
@@ -2409,6 +2409,8 @@ ped_partition_flag_get_name (PedPartitionFlag flag)
                 return N_("esp");
         case PED_PARTITION_CHROMEOS_KERNEL:
                 return N_("chromeos_kernel");
+	case PED_PARTITION_BLS_BOOT:
+		return N_("bls_boot");
 
 	default:
 		ped_exception_throw (
diff --git a/libparted/labels/gpt.c b/libparted/labels/gpt.c
index b8b58cd..93f7add 100644
--- a/libparted/labels/gpt.c
+++ b/libparted/labels/gpt.c
@@ -160,6 +160,10 @@ typedef struct
     ((efi_guid_t) { PED_CPU_TO_LE32 (0xfe3a2a5d), PED_CPU_TO_LE16 (0x4f32), \
                     PED_CPU_TO_LE16 (0x41a7), 0xb7, 0x25, \
                     { 0xac, 0xcc, 0x32, 0x85, 0xa3, 0x09 }})
+#define PARTITION_BLS_BOOT_GUID \
+    ((efi_guid_t) { PED_CPU_TO_LE32 (0xbc13c2ff), PED_CPU_TO_LE16 (0x59e6), \
+                    PED_CPU_TO_LE16 (0x4262), 0xa3, 0x52, \
+                    { 0xb2, 0x75, 0xfd, 0x6f, 0x71, 0x72 }})
 
 struct __attribute__ ((packed)) _GuidPartitionTableHeader_t
 {
@@ -308,6 +312,7 @@ typedef struct _GPTPartitionData
   int prep;
   int irst;
   int chromeos_kernel;
+  int bls_boot;
 } GPTPartitionData;
 
 static PedDiskType gpt_disk_type;
@@ -832,6 +837,7 @@ _parse_part_entry (PedDisk *disk, GuidPartitionEntry_t *pte)
     = gpt_part_data->prep
     = gpt_part_data->irst
     = gpt_part_data->chromeos_kernel
+    = gpt_part_data->bls_boot
     = gpt_part_data->bios_grub = gpt_part_data->atvrecv = 0;
 
   if (pte->Attributes.RequiredToFunction & 0x1)
@@ -865,6 +871,8 @@ _parse_part_entry (PedDisk *disk, GuidPartitionEntry_t *pte)
     gpt_part_data->irst = 1;
   else if (!guid_cmp (gpt_part_data->type, PARTITION_CHROMEOS_KERNEL_GUID))
     gpt_part_data->chromeos_kernel = 1;
+  else if (!guid_cmp (gpt_part_data->type, PARTITION_BLS_BOOT_GUID))
+    gpt_part_data->bls_boot = 1;
 
   return part;
 }
@@ -1386,6 +1394,7 @@ gpt_partition_new (const PedDisk *disk,
   gpt_part_data->translated_name = 0;
   gpt_part_data->irst = 0;
   gpt_part_data->chromeos_kernel = 0;
+  gpt_part_data->bls_boot = 0;
   uuid_generate ((unsigned char *) &gpt_part_data->uuid);
   swap_uuid_and_efi_guid (&gpt_part_data->uuid);
   memset (gpt_part_data->name, 0, sizeof gpt_part_data->name);
@@ -1521,6 +1530,11 @@ gpt_partition_set_system (PedPartition *part,
       gpt_part_data->type = PARTITION_CHROMEOS_KERNEL_GUID;
       return 1;
     }
+  if (gpt_part_data->bls_boot)
+    {
+      gpt_part_data->type = PARTITION_BLS_BOOT_GUID;
+      return 1;
+    }
 
   if (fs_type)
     {
@@ -1668,6 +1682,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_BIOS_GRUB:
@@ -1684,6 +1699,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_RAID:
@@ -1700,6 +1716,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_LVM:
@@ -1716,6 +1733,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_SWAP:
@@ -1732,6 +1750,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_HPSERVICE:
@@ -1748,6 +1767,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_MSFT_RESERVED:
@@ -1764,6 +1784,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_MSFT_DATA:
@@ -1780,6 +1801,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->prep
           = gpt_part_data->irst
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
         gpt_part_data->msftdata = 1;
       } else {
@@ -1830,6 +1852,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->irst
           = gpt_part_data->atvrecv
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->msftrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_IRST:
@@ -1846,6 +1869,7 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->msftrecv
           = gpt_part_data->prep
           = gpt_part_data->chromeos_kernel
+          = gpt_part_data->bls_boot
           = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_CHROMEOS_KERNEL:
@@ -1862,7 +1886,25 @@ gpt_partition_set_flag (PedPartition *part, PedPartitionFlag flag, int state)
           = gpt_part_data->msftrecv
           = gpt_part_data->atvrecv
           = gpt_part_data->prep
-          = gpt_part_data->irst = 0;
+          = gpt_part_data->irst
+          = gpt_part_data->bls_boot = 0;
+      return gpt_partition_set_system (part, part->fs_type);
+    case PED_PARTITION_BLS_BOOT:
+      gpt_part_data->bls_boot = state;
+      if (state)
+        gpt_part_data->boot
+          = gpt_part_data->raid
+          = gpt_part_data->lvm
+          = gpt_part_data->swap
+          = gpt_part_data->bios_grub
+          = gpt_part_data->hp_service
+          = gpt_part_data->msftres
+          = gpt_part_data->msftdata
+          = gpt_part_data->msftrecv
+          = gpt_part_data->prep
+          = gpt_part_data->irst
+          = gpt_part_data->chromeos_kernel
+          = gpt_part_data->atvrecv = 0;
       return gpt_partition_set_system (part, part->fs_type);
     case PED_PARTITION_HIDDEN:
       gpt_part_data->hidden = state;
@@ -1914,6 +1956,8 @@ gpt_partition_get_flag (const PedPartition *part, PedPartitionFlag flag)
       return gpt_part_data->prep;
     case PED_PARTITION_IRST:
       return gpt_part_data->irst;
+    case PED_PARTITION_BLS_BOOT:
+      return gpt_part_data->bls_boot;
     case PED_PARTITION_SWAP:
 	return gpt_part_data->swap;
     case PED_PARTITION_CHROMEOS_KERNEL:
@@ -1948,6 +1992,7 @@ gpt_partition_is_flag_available (const PedPartition *part,
     case PED_PARTITION_IRST:
     case PED_PARTITION_ESP:
     case PED_PARTITION_CHROMEOS_KERNEL:
+    case PED_PARTITION_BLS_BOOT:
       return 1;
     case PED_PARTITION_ROOT:
     case PED_PARTITION_LBA:
-- 
2.23.0




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