File direct-handling-of-partition-type-id-and-uuid.p... of Package parted

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File direct-handling-of-partition-type-id-and-uuid.patch of Package parted (Revision 8a79c2eb6788c4ecb2b484cc319cbae3)

Currently displaying revision 8a79c2eb6788c4ecb2b484cc319cbae3 , Show latest

From 1d798715b5998cd4afd184beb88ebdbe1a2642e8 Mon Sep 17 00:00:00 2001
From: Arvin Schnell <aschnell@suse.de>
Date: Thu, 14 Oct 2021 16:29:06 +0200
Subject: [PATCH] allow direct handling of partition type id and uuid

diff --git a/include/parted/disk.in.h b/include/parted/disk.in.h
index 303f59c..d7fde12 100644
--- a/include/parted/disk.in.h
+++ b/include/parted/disk.in.h
@@ -32,6 +32,7 @@
  */
 #include <stdlib.h>
 #include <unistd.h>
+#include <stdint.h>
 
 /**
  * Disk flags
@@ -91,9 +92,11 @@ enum _PedPartitionFlag {
         PED_DISK_TYPE_EXTENDED=1,       /**< supports extended partitions */
         PED_DISK_TYPE_PARTITION_NAME=2, /**< supports partition names */
-        PED_DISK_TYPE_SYSTEM_NAME=4     /**< supports system names */
+        PED_DISK_TYPE_SYSTEM_NAME=4,    /**< supports system names */
+        PED_DISK_TYPE_PARTITION_TYPE_ID=8,    /**< supports partition type-ids */
+        PED_DISK_TYPE_PARTITION_TYPE_UUID=16, /**< supports partition type-uuids */
 };
 #define PED_DISK_TYPE_FIRST_FEATURE    PED_DISK_TYPE_EXTENDED
-#define PED_DISK_TYPE_LAST_FEATURE     PED_DISK_TYPE_SYSTEM_NAME
+#define PED_DISK_TYPE_LAST_FEATURE     PED_DISK_TYPE_PARTITION_TYPE_UUID
 
 struct _PedDisk;
 struct _PedPartition;
@@ -247,6 +250,13 @@ struct _PedDiskOps {
                 PedPartitionFlag flag);
         void (*partition_set_name) (PedPartition* part, const char* name);
         const char* (*partition_get_name) (const PedPartition* part);
+
+        int (*partition_set_type_id) (PedPartition* part, uint8_t id);
+        uint8_t (*partition_get_type_id) (const PedPartition* part);
+
+        int (*partition_set_type_uuid) (PedPartition* part, const uint8_t* uuid);
+        uint8_t* (*partition_get_type_uuid) (const PedPartition* part);
+
         int (*partition_align) (PedPartition* part,
                                 const PedConstraint* constraint);
         int (*partition_enumerate) (PedPartition* part);
@@ -347,6 +357,10 @@ extern int ped_partition_set_system (PedPartition* part,
 extern int ped_partition_set_system_name (PedPartition* part, const char* name);
 extern const char* ped_partition_get_name (const PedPartition* part);
 extern const char* ped_partition_get_system_name (const PedPartition* part);
+extern int ped_partition_set_type_id (PedPartition* part, uint8_t id);
+extern uint8_t ped_partition_get_type_id (const PedPartition* part);
+extern int ped_partition_set_type_uuid (PedPartition* part, const uint8_t* uuid);
+extern uint8_t* ped_partition_get_type_uuid (const PedPartition* part);
 extern int ped_partition_is_busy (const PedPartition* part);
 extern char* ped_partition_get_path (const PedPartition* part);
 
diff --git a/libparted/disk.c b/libparted/disk.c
index 8496fc0..80f3154 100644
--- a/libparted/disk.c
+++ b/libparted/disk.c
@@ -1458,6 +1458,36 @@ _assert_partition_name_feature (const PedDiskType* disk_type)
 	return 1;
 }
 
+static int
+_assert_partition_type_id_feature (const PedDiskType* disk_type)
+{
+        if (!ped_disk_type_check_feature (
+                        disk_type, PED_DISK_TYPE_PARTITION_TYPE_ID)) {
+                ped_exception_throw (
+                        PED_EXCEPTION_ERROR,
+                        PED_EXCEPTION_CANCEL,
+                        "%s disk labels do not support partition type-ids.",
+                        disk_type->name);
+                return 0;
+        }
+        return 1;
+}
+
+static int
+_assert_partition_type_uuid_feature (const PedDiskType* disk_type)
+{
+        if (!ped_disk_type_check_feature (
+                        disk_type, PED_DISK_TYPE_PARTITION_TYPE_UUID)) {
+                ped_exception_throw (
+                        PED_EXCEPTION_ERROR,
+                        PED_EXCEPTION_CANCEL,
+                        "%s disk labels do not support partition type-uuids.",
+                        disk_type->name);
+                return 0;
+        }
+        return 1;
+}
+
 /**
  * Sets the name of a partition.
  *
@@ -1510,6 +1540,62 @@ ped_partition_get_name (const PedPartition* part)
 	return part->disk->type->ops->partition_get_name (part);
 }
 
+int
+ped_partition_set_type_id (PedPartition *part, uint8_t id)
+{
+        PED_ASSERT (part != NULL);
+        PED_ASSERT (part->disk != NULL);
+        PED_ASSERT (ped_partition_is_active (part));
+
+        if (!_assert_partition_type_id_feature (part->disk->type))
+                return 0;
+
+        PED_ASSERT (part->disk->type->ops->partition_set_type_id != NULL);
+        return part->disk->type->ops->partition_set_type_id (part, id);
+}
+
+uint8_t
+ped_partition_get_type_id (const PedPartition *part)
+{
+        PED_ASSERT (part != NULL);
+        PED_ASSERT (part->disk != NULL);
+        PED_ASSERT (ped_partition_is_active (part));
+
+        if (!_assert_partition_type_id_feature (part->disk->type))
+                return 0;
+
+        PED_ASSERT (part->disk->type->ops->partition_set_type_id != NULL);
+        return part->disk->type->ops->partition_get_type_id (part);
+}
+
+int
+ped_partition_set_type_uuid (PedPartition *part, const uint8_t* uuid)
+{
+        PED_ASSERT (part != NULL);
+        PED_ASSERT (part->disk != NULL);
+        PED_ASSERT (ped_partition_is_active (part));
+
+        if (!_assert_partition_type_uuid_feature (part->disk->type))
+                return 0;
+
+        PED_ASSERT (part->disk->type->ops->partition_set_type_uuid != NULL);
+        return part->disk->type->ops->partition_set_type_uuid (part, uuid);
+}
+
+uint8_t*
+ped_partition_get_type_uuid (const PedPartition *part)
+{
+        PED_ASSERT (part != NULL);
+        PED_ASSERT (part->disk != NULL);
+        PED_ASSERT (ped_partition_is_active (part));
+
+        if (!_assert_partition_type_uuid_feature (part->disk->type))
+                return NULL;
+
+        PED_ASSERT (part->disk->type->ops->partition_set_type_uuid != NULL);
+        return part->disk->type->ops->partition_get_type_uuid (part);
+}
+
 /** @} */
 
 /**
diff --git a/libparted/labels/dasd.c b/libparted/labels/dasd.c
index 6b0b10d..1747202 100644
--- a/libparted/labels/dasd.c
+++ b/libparted/labels/dasd.c
@@ -117,6 +117,10 @@ static PedDiskOps dasd_disk_ops = {
 
 	partition_set_name:	NULL,
 	partition_get_name:	NULL,
+	partition_set_type_id:          NULL,
+	partition_get_type_id:          NULL,
+	partition_set_type_uuid:	NULL,
+	partition_get_type_uuid:	NULL,
 	disk_set_flag:		dasd_disk_set_flag,
 	disk_get_flag:		dasd_disk_get_flag,
 	disk_is_flag_available:	dasd_disk_is_flag_available,
diff --git a/libparted/labels/dos.c b/libparted/labels/dos.c
index b44ccaf..44c8cfc 100644
--- a/libparted/labels/dos.c
+++ b/libparted/labels/dos.c
@@ -1754,6 +1754,30 @@ msdos_partition_is_flag_available (const PedPartition* part,
 	}
 }
 
+
+int
+msdos_partition_set_type_id (PedPartition *part, uint8_t id)
+{
+        DosPartitionData *dos_part_data = part->disk_specific;
+
+        dos_part_data->system = id;
+
+        // TODO set the correct flag but there is no function for that. better cleanup flags
+        // and use system directly (like in gpt.c)
+
+        return 1;
+}
+
+
+uint8_t _GL_ATTRIBUTE_PURE
+msdos_partition_get_type_id (const PedPartition *part)
+{
+        const DosPartitionData *dos_part_data = part->disk_specific;
+
+        return dos_part_data->system;
+}
+
+
 static PedGeometry*
 _try_constraint (const PedPartition* part, const PedConstraint* external,
 		 PedConstraint* internal)
@@ -2590,6 +2614,10 @@ static PedDiskOps msdos_disk_ops = {
 
 	partition_set_name:	NULL,
 	partition_get_name:	NULL,
+	partition_set_type_id:		msdos_partition_set_type_id,
+	partition_get_type_id:		msdos_partition_get_type_id,
+	partition_set_type_uuid:	NULL,
+	partition_get_type_uuid:	NULL,
 
   PT_op_function_initializers (msdos)
 };
@@ -2598,7 +2626,7 @@ static PedDiskType msdos_disk_type = {
 	next:		NULL,
 	name:		"msdos",
 	ops:		&msdos_disk_ops,
-	features:	PED_DISK_TYPE_EXTENDED
+	features:	PED_DISK_TYPE_EXTENDED | PED_DISK_TYPE_PARTITION_TYPE_ID
 };
 
 void
diff --git a/libparted/labels/gpt.c b/libparted/labels/gpt.c
index c5d7bb3..db18790 100644
--- a/libparted/labels/gpt.c
+++ b/libparted/labels/gpt.c
@@ -1685,6 +1685,45 @@ gpt_partition_get_name (const PedPartition *part)
   return gpt_part_data->translated_name;
 }
 
+
+static int
+gpt_partition_set_type_uuid (PedPartition *part, const uint8_t* uuid)
+{
+  GPTPartitionData *gpt_part_data = part->disk_specific;
+
+  efi_guid_t* type_uuid = &gpt_part_data->type;
+  memcpy(type_uuid, uuid, sizeof (efi_guid_t));
+
+  /* type_uuid is always LE, while uint8_t is always kind of BE */
+
+  type_uuid->time_low = PED_SWAP32(type_uuid->time_low);
+  type_uuid->time_mid = PED_SWAP16(type_uuid->time_mid);
+  type_uuid->time_hi_and_version = PED_SWAP16(type_uuid->time_hi_and_version);
+
+  return 1;
+}
+
+
+static uint8_t*
+gpt_partition_get_type_uuid (const PedPartition *part)
+{
+  const GPTPartitionData *gpt_part_data = part->disk_specific;
+
+  efi_guid_t type_uuid = gpt_part_data->type;
+
+  /* type_uuid is always LE, while uint8_t is always kind of BE */
+
+  type_uuid.time_low = PED_SWAP32(type_uuid.time_low);
+  type_uuid.time_mid = PED_SWAP16(type_uuid.time_mid);
+  type_uuid.time_hi_and_version = PED_SWAP16(type_uuid.time_hi_and_version);
+
+  uint8_t* buf = ped_malloc(sizeof (uuid_t));
+  memcpy(buf, &type_uuid, sizeof (uuid_t));
+
+  return buf;
+}
+
+
 static int
 gpt_get_max_primary_partition_count (const PedDisk *disk)
 {
@@ -1780,6 +1814,10 @@ static PedDiskOps gpt_disk_ops =
 
   partition_set_name:		gpt_partition_set_name,
   partition_get_name:		gpt_partition_get_name,
+  partition_set_type_id:	NULL,
+  partition_get_type_id:	NULL,
+  partition_set_type_uuid:	gpt_partition_set_type_uuid,
+  partition_get_type_uuid:	gpt_partition_get_type_uuid,
   disk_set_flag:		gpt_disk_set_flag,
   disk_get_flag:		gpt_disk_get_flag,
   disk_is_flag_available:	gpt_disk_is_flag_available,
@@ -1792,7 +1830,7 @@ static PedDiskType gpt_disk_type =
   next:		NULL,
   name:		"gpt",
   ops:		&gpt_disk_ops,
-  features:	PED_DISK_TYPE_PARTITION_NAME
+  features:	PED_DISK_TYPE_PARTITION_NAME | PED_DISK_TYPE_PARTITION_TYPE_UUID
 };
 
 void
diff --git a/parted/parted.c b/parted/parted.c
index 310f011..f840037 100644
--- a/parted/parted.c
+++ b/parted/parted.c
@@ -19,6 +19,7 @@
 
 #include <config.h>
 #include <stdbool.h>
+#include <uuid/uuid.h>
 
 #include "argmatch.h"
 #include "closeout.h"
@@ -174,6 +175,8 @@ static const char* end_msg =          N_("END is disk location, such as "
 static const char* state_msg =        N_("STATE is one of: on, off\n");
 static const char* device_msg =       N_("DEVICE is usually /dev/hda or /dev/sda\n");
 static const char* name_msg =         N_("NAME is any word you want\n");
+static const char* type_id_msg =      N_("TYPE_ID is a value between 0x01 and 0xff\n");
+static const char* type_uuid_msg =    N_("TYPE_UUID is a non-null uuid\n");
 
 static const char* copyright_msg = N_(
 "Copyright (C) 1998 - 2006 Free Software Foundation, Inc.\n"
@@ -917,6 +920,110 @@ error:
         return 0;
 }
 
+static int
+do_type_id (PedDevice** dev, PedDisk** diskp)
+{
+        PedPartition*   part = NULL;
+        char*           input = NULL;
+
+        if (!*diskp)
+                *diskp = ped_disk_new (*dev);
+        if (!*diskp)
+                goto error;
+
+        if (!ped_disk_type_check_feature((*diskp)->type, PED_DISK_TYPE_PARTITION_TYPE_ID)) {
+                ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
+                                     _("%s disk labels do not support partition type-id."),
+                                     (*diskp)->type->name);
+                goto error;
+        }
+
+        if (!command_line_get_partition (_("Partition number?"), *diskp, &part))
+                goto error;
+
+        uint8_t type_id = ped_partition_get_type_id (part);
+
+        static char buf[8];
+        snprintf(buf, 8, "0x%02x", type_id);
+
+        input = command_line_get_word (_("Partition type-id?"), buf, NULL, 0);
+        if (!input)
+                goto error;
+
+        unsigned int tmp = strtol (input, (char**) NULL, 0);
+        if (tmp == 0 || tmp > 0xff) {
+                ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
+                                     _("Invalid id."));
+                goto error;
+        }
+
+        if (!ped_partition_set_type_id (part, tmp))
+                goto error_free_input;
+
+        free (input);
+
+        if (!ped_disk_commit (*diskp))
+                goto error;
+        return 1;
+
+error_free_input:
+        free (input);
+error:
+        return 0;
+}
+
+static int
+do_type_uuid (PedDevice** dev, PedDisk** diskp)
+{
+        PedPartition*   part = NULL;
+        char*           input = NULL;
+
+        if (!*diskp)
+                *diskp = ped_disk_new (*dev);
+        if (!*diskp)
+                goto error;
+
+        if (!ped_disk_type_check_feature((*diskp)->type, PED_DISK_TYPE_PARTITION_TYPE_UUID)) {
+                ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
+                                     _("%s disk labels do not support partition type-uuid."),
+                                     (*diskp)->type->name);
+                goto error;
+        }
+
+        if (!command_line_get_partition (_("Partition number?"), *diskp, &part))
+                goto error;
+
+        uint8_t* type_uuid = ped_partition_get_type_uuid (part);
+        static char buf[UUID_STR_LEN];
+        uuid_unparse_lower (type_uuid, buf);
+        free (type_uuid);
+
+        input = command_line_get_word (_("Partition type-uuid?"), buf, NULL, 0);
+        if (!input)
+                goto error;
+
+        uuid_t tmp;
+        if (uuid_parse (input, tmp) != 0 || uuid_is_null (tmp)) {
+                ped_exception_throw (PED_EXCEPTION_ERROR, PED_EXCEPTION_CANCEL,
+                                     _("Invalid uuid."));
+                goto error;
+        }
+
+        if (!ped_partition_set_type_uuid (part, tmp))
+                goto error_free_input;
+
+        free (input);
+
+        if (!ped_disk_commit (*diskp))
+                goto error;
+        return 1;
+
+error_free_input:
+        free (input);
+error:
+        return 0;
+}
+
 static char*
 partition_print_flags (PedPartition const *part)
 {
@@ -1161,6 +1268,8 @@ do_print (PedDevice** dev, PedDisk** diskp)
         Table*          table;
         int             has_extended;
         int             has_name;
+        int             has_id;
+        int             has_uuid;
         int             has_devices_arg = 0;
         int             has_free_arg = 0;
         int             has_list_arg = 0;
@@ -1270,6 +1379,10 @@ do_print (PedDevice** dev, PedDisk** diskp)
                                          PED_DISK_TYPE_EXTENDED);
         has_name = ped_disk_type_check_feature ((*diskp)->type,
                                          PED_DISK_TYPE_PARTITION_NAME);
+        has_id = ped_disk_type_check_feature ((*diskp)->type,
+                                         PED_DISK_TYPE_PARTITION_TYPE_ID);
+        has_uuid = ped_disk_type_check_feature ((*diskp)->type,
+                                         PED_DISK_TYPE_PARTITION_TYPE_UUID);
 
         PedPartition* part;
         if (opt_output_mode == HUMAN) {
@@ -1407,6 +1520,21 @@ do_print (PedDevice** dev, PedDisk** diskp)
 
                 if (!(part->type & PED_PARTITION_FREESPACE)) {
 
+                    if (has_id) {
+                        uint8_t type_id = ped_partition_get_type_id (part);
+                        static char buf[8];
+                        snprintf(buf, 8, "0x%02x", type_id);
+                        ul_jsonwrt_value_s (&json, "type-id", buf);
+                    }
+
+                    if (has_uuid) {
+                        uint8_t* type_uuid = ped_partition_get_type_uuid (part);
+                        static char buf[UUID_STR_LEN];
+                        uuid_unparse_lower (type_uuid, buf);
+                        ul_jsonwrt_value_s (&json, "type-uuid", buf);
+                        free (type_uuid);
+                    }
+
                     if (has_name) {
                         name = ped_partition_get_name (part);
                         if (strcmp (name, "") != 0)
@@ -2218,6 +2346,22 @@ _("name NUMBER NAME                         name partition NUMBER as NAME"),
 NULL),
         str_list_create (_(number_msg), _(name_msg), NULL), 1));
 
+command_register (commands, command_create (
+        str_list_create_unique ("type-id", _("type-id"), NULL),
+        do_type_id,
+        str_list_create (
+_("type-id NUMBER TYPE-ID                   type-id set TYPE-ID of partition NUMBER"),
+NULL),
+        str_list_create (_(number_msg), _(type_id_msg), NULL), 1));
+
+command_register (commands, command_create (
+        str_list_create_unique ("type-uuid", _("type-uuid"), NULL),
+        do_type_uuid,
+        str_list_create (
+_("type-uuid NUMBER TYPE-UUID               type-uuid set TYPE-UUID of partition NUMBER"),
+NULL),
+        str_list_create (_(number_msg), _(type_uuid_msg), NULL), 1));
+
 command_register (commands, command_create (
         str_list_create_unique ("print", _("print"), NULL),
         do_print,
diff --git a/tests/t0800-json-gpt.sh b/tests/t0800-json-gpt.sh
index 8dd1862..354c0bd 100755
--- a/tests/t0800-json-gpt.sh
+++ b/tests/t0800-json-gpt.sh
@@ -62,6 +62,7 @@ cat <<EOF > exp || fail=1
             "end": "20479s",
             "size": "10240s",
             "type": "primary",
+            "type-uuid": "0fc63daf-8483-4772-8e79-3d69d8477de4",
             "name": "test1"
          },{
             "number": 2,
@@ -69,6 +70,7 @@ cat <<EOF > exp || fail=1
             "end": "61439s",
             "size": "40960s",
             "type": "primary",
+            "type-uuid": "a19d880f-05fc-4d3b-a006-743f0f84911e",
             "name": "test2",
             "flags": [
                 "raid"
diff --git a/tests/t0801-json-msdos.sh b/tests/t0801-json-msdos.sh
index a14a5af..c5446d8 100755
--- a/tests/t0801-json-msdos.sh
+++ b/tests/t0801-json-msdos.sh
@@ -52,13 +52,15 @@ cat <<EOF > exp || fail=1
             "start": "5.00MiB",
             "end": "10.0MiB",
             "size": "5.00MiB",
-            "type": "primary"
+            "type": "primary",
+            "type-id": "0x83"
          },{
             "number": 2,
             "start": "10.0MiB",
             "end": "30.0MiB",
             "size": "20.0MiB",
             "type": "extended",
+            "type-id": "0x0f",
             "flags": [
                 "lba"
             ]
@@ -68,6 +70,7 @@ cat <<EOF > exp || fail=1
             "end": "20.0MiB",
             "size": "10.0MiB",
             "type": "logical",
+            "type-id": "0x8e",
             "flags": [
                 "lvm"
             ]

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File direct-handling-of-partition-type-id-and-uuid.patch of Package parted (Revision 8a79c2eb6788c4ecb2b484cc319cbae3)

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