2:40 a.m.
In GPT, each partition has a GUID assigned randomly. Allow this GUID
to be written and read.
Note this is different from the GUID type code which is used to
identify the type of the partition.
---
daemon/parted.c | 33 +++++++++++++++++++++++++++++++++
generator/actions.ml | 36 ++++++++++++++++++++++++++++++++++++
src/MAX_PROC_NR | 2 +-
3 files changed, 70 insertions(+), 1 deletion(-)
diff --git a/daemon/parted.c b/daemon/parted.c
index 877ef10..a7bcb99 100644
--- a/daemon/parted.c
+++ b/daemon/parted.c
@@ -812,6 +812,32 @@ do_part_set_gpt_type (const char *device, int partnum, const char
*guid)
return 0;
}
+int
+do_part_set_gpt_guid (const char *device, int partnum, const char *guid)
+{
+ if (partnum <= 0) {
+ reply_with_error ("partition number must be >= 1");
+ return -1;
+ }
+
+ CLEANUP_FREE char *typecode = NULL;
+ if (asprintf (&typecode, "%i:%s", partnum, guid) == -1) {
+ reply_with_perror ("asprintf");
+ return -1;
+ }
+
+ CLEANUP_FREE char *err = NULL;
+ int r = commandf (NULL, &err, COMMAND_FLAG_FOLD_STDOUT_ON_STDERR,
+ str_sgdisk, device, "-u", typecode, NULL);
+
+ if (r == -1) {
+ reply_with_error ("%s %s -u %s: %s", str_sgdisk, device, typecode, err);
+ return -1;
+ }
+
+ return 0;
+}
+
static char *
sgdisk_info_extract_field (const char *device, int partnum, const char *field,
char *(*extract) (const char *path))
@@ -922,6 +948,13 @@ do_part_get_gpt_type (const char *device, int partnum)
}
char *
+do_part_get_gpt_guid (const char *device, int partnum)
+{
+ return sgdisk_info_extract_field (device, partnum,
+ "Partition unique GUID", extract_uuid);
+}
+
+char *
do_part_get_name (const char *device, int partnum)
{
CLEANUP_FREE char *parttype;
diff --git a/generator/actions.ml b/generator/actions.ml
index 985bb81..6b37712 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -12413,6 +12413,42 @@ Recover the chunk tree of btrfs filesystem by scannning the
devices one by one."
longdesc = "\
Recover bad superblocks from good copies." };
+ { defaults with
+ name = "part_set_gpt_guid";
+ style = RErr, [Device "device"; Int "partnum"; GUID
"guid"], [];
+ proc_nr = Some 446;
+ optional = Some "gdisk";
+ tests = [
+ InitGPT, Always, TestLastFail (
+ [["part_set_gpt_guid"; "/dev/sda"; "1";
"f"]]), [];
+ InitGPT, Always, TestResultString (
+ [["part_set_gpt_guid"; "/dev/sda"; "1";
+ "01234567-89AB-CDEF-0123-456789ABCDEF"];
+ ["part_get_gpt_guid"; "/dev/sda"; "1"]],
+ "01234567-89AB-CDEF-0123-456789ABCDEF"), [];
+ ];
+ shortdesc = "set the GUID of a GPT partition";
+ longdesc = "\
+Set the GUID of numbered GPT partition C<partnum> to C<guid>. Return an
+error if the partition table of C<device> isn't GPT, or if C<guid> is not
a
+valid GUID." };
+
+ { defaults with
+ name = "part_get_gpt_guid";
+ style = RString "guid", [Device "device"; Int
"partnum"], [];
+ proc_nr = Some 447;
+ optional = Some "gdisk";
+ tests = [
+ InitGPT, Always, TestResultString (
+ [["part_set_gpt_guid"; "/dev/sda"; "1";
+ "01234567-89AB-CDEF-0123-456789ABCDEF"];
+ ["part_get_gpt_guid"; "/dev/sda"; "1"]],
+ "01234567-89AB-CDEF-0123-456789ABCDEF"), [];
+ ];
+ shortdesc = "get the GUID of a GPT partition";
+ longdesc = "\
+Return the GUID of numbered GPT partition C<partnum>." };
+
]
(* Non-API meta-commands available only in guestfish.
diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR
index e5a135a..e9b7520 100644
--- a/src/MAX_PROC_NR
+++ b/src/MAX_PROC_NR
@@ -1 +1 @@
-445
+447
--
2.1.0