mirror of
https://src.fedoraproject.org/rpms/grub2.git
synced 2024-12-01 00:48:18 +00:00
101 lines
2.9 KiB
Diff
101 lines
2.9 KiB
Diff
|
From 0c0bcffc2378f7427f14f7f878b08ba8f1a1f508 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Nicholas Vinson <nvinson234@gmail.com>
|
||
|
|
Date: Mon, 16 Apr 2018 22:36:25 -0700
|
||
|
|
Subject: [PATCH] grub-probe: Add PARTUUID detection support
|
||
|
|
|
||
|
|
Add PARTUUID detection support grub-probe for MBR and GPT partition schemes.
|
||
|
|
|
||
|
|
Signed-off-by: Nicholas Vinson <nvinson234@gmail.com>
|
||
|
|
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
||
|
|
---
|
||
|
|
util/grub-probe.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
|
||
|
|
1 file changed, 48 insertions(+)
|
||
|
|
|
||
|
|
diff --git a/util/grub-probe.c b/util/grub-probe.c
|
||
|
|
index 21cb80fbe15..e45dbf9e049 100644
|
||
|
|
--- a/util/grub-probe.c
|
||
|
|
+++ b/util/grub-probe.c
|
||
|
|
@@ -28,6 +28,7 @@
|
||
|
|
#include <grub/partition.h>
|
||
|
|
#include <grub/msdos_partition.h>
|
||
|
|
#include <grub/gpt_partition.h>
|
||
|
|
+#include <grub/i386/pc/boot.h>
|
||
|
|
#include <grub/emu/hostdisk.h>
|
||
|
|
#include <grub/emu/getroot.h>
|
||
|
|
#include <grub/term.h>
|
||
|
|
@@ -62,6 +63,7 @@ enum {
|
||
|
|
PRINT_DRIVE,
|
||
|
|
PRINT_DEVICE,
|
||
|
|
PRINT_PARTMAP,
|
||
|
|
+ PRINT_PARTUUID,
|
||
|
|
PRINT_ABSTRACTION,
|
||
|
|
PRINT_CRYPTODISK_UUID,
|
||
|
|
PRINT_HINT_STR,
|
||
|
|
@@ -85,6 +87,7 @@ static const char *targets[] =
|
||
|
|
[PRINT_DRIVE] = "drive",
|
||
|
|
[PRINT_DEVICE] = "device",
|
||
|
|
[PRINT_PARTMAP] = "partmap",
|
||
|
|
+ [PRINT_PARTUUID] = "partuuid",
|
||
|
|
[PRINT_ABSTRACTION] = "abstraction",
|
||
|
|
[PRINT_CRYPTODISK_UUID] = "cryptodisk_uuid",
|
||
|
|
[PRINT_HINT_STR] = "hints_string",
|
||
|
|
@@ -181,6 +184,45 @@ probe_partmap (grub_disk_t disk, char delim)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
+static void
|
||
|
|
+probe_partuuid (grub_disk_t disk, char delim)
|
||
|
|
+{
|
||
|
|
+ grub_partition_t p = disk->partition;
|
||
|
|
+
|
||
|
|
+ /*
|
||
|
|
+ * Nested partitions not supported for now.
|
||
|
|
+ * Non-nested partitions must have disk->partition->parent == NULL
|
||
|
|
+ */
|
||
|
|
+ if (p && p->parent == NULL)
|
||
|
|
+ {
|
||
|
|
+ disk->partition = p->parent;
|
||
|
|
+
|
||
|
|
+ if (strcmp(p->partmap->name, "msdos") == 0)
|
||
|
|
+ {
|
||
|
|
+ /*
|
||
|
|
+ * The partition GUID for MSDOS is the partition number (starting
|
||
|
|
+ * with 1) prepended with the NT disk signature.
|
||
|
|
+ */
|
||
|
|
+ grub_uint32_t nt_disk_sig;
|
||
|
|
+
|
||
|
|
+ if (grub_disk_read (disk, 0, GRUB_BOOT_MACHINE_WINDOWS_NT_MAGIC,
|
||
|
|
+ sizeof(nt_disk_sig), &nt_disk_sig) == 0)
|
||
|
|
+ grub_printf ("%08x-%02x",
|
||
|
|
+ grub_le_to_cpu32(nt_disk_sig), 1 + p->number);
|
||
|
|
+ }
|
||
|
|
+ else if (strcmp(p->partmap->name, "gpt") == 0)
|
||
|
|
+ {
|
||
|
|
+ struct grub_gpt_partentry gptdata;
|
||
|
|
+
|
||
|
|
+ if (grub_disk_read (disk, p->offset, p->index,
|
||
|
|
+ sizeof(gptdata), &gptdata) == 0)
|
||
|
|
+ print_gpt_guid(gptdata.guid);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ disk->partition = p;
|
||
|
|
+ }
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static void
|
||
|
|
probe_cryptodisk_uuid (grub_disk_t disk, char delim)
|
||
|
|
{
|
||
|
|
@@ -635,6 +677,12 @@ probe (const char *path, char **device_names, char delim)
|
||
|
|
/* Check if dev->disk itself is contained in a partmap. */
|
||
|
|
probe_partmap (dev->disk, delim);
|
||
|
|
|
||
|
|
+ else if (print == PRINT_PARTUUID)
|
||
|
|
+ {
|
||
|
|
+ probe_partuuid (dev->disk, delim);
|
||
|
|
+ putchar (delim);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
else if (print == PRINT_MSDOS_PARTTYPE)
|
||
|
|
{
|
||
|
|
if (dev->disk->partition
|