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Accepting request 396726 from Base:System

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- implement --wipesignatures option (bsc#943623, fate#319893)
  - parted-implement-wipesignatures-option.patch

- libparted: Use read only when probing devices on linux
  - libparted-Use-read-only-when-probing-devices-on-linu.patch
  (bsc#967375)

OBS-URL: https://build.opensuse.org/request/show/396726
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/parted?expand=0&rev=109
This commit is contained in:
Dominique Leuenberger 2016-05-23 14:36:43 +00:00 committed by Git OBS Bridge
commit ac8c358a02
4 changed files with 392 additions and 1 deletions
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216
libparted-Use-read-only-when-probing-devices-on-linu.patch Normal file
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@ -0,0 +1,216 @@
From 44d5ae0115c4ecfe3158748309e9912c5aede92d Mon Sep 17 00:00:00 2001
From: "Brian C. Lane" <bcl@redhat.com>
Date: Thu, 6 Aug 2015 07:17:14 -0700
Subject: [PATCH] libparted: Use read only when probing devices on linux
(#1245144)
When a device is opened for RW closing it can trigger other actions,
like udev scanning it for partition changes. Use read only for the
init_* methods and RW for actual changes to the device.
This adds _device_open which takes mode flags as an argument and turns
linux_open into a wrapper for it with RW_MODE.
_device_open_ro is added to open the device with RD_MODE and increment
the open_counter. This is used in the init_* functions.
_device_close is a wrapper around linux_close that decrements the
open_counter and is used in the init_* functions.
All of these changes are self-contained with no external API changes.
The only visible change in behavior is that when a new PedDevice is
created the device is opened in RO_MODE instead of RW_MODE.
Resolves: rhbz#1245144
---
libparted/arch/linux.c | 62 ++++++++++++++++++++++++++++++++++---------------
1 file changed, 44 insertions(+), 18 deletions(-)
Index: parted-3.2/libparted/arch/linux.c
===================================================================
--- parted-3.2.orig/libparted/arch/linux.c
+++ parted-3.2/libparted/arch/linux.c
@@ -292,7 +292,9 @@ struct blkdev_ioctl_param {
static char* _device_get_part_path (PedDevice const *dev, int num);
static int _partition_is_mounted_by_path (const char* path);
static unsigned int _device_get_partition_range(PedDevice const* dev);
-
+static int _device_open (PedDevice* dev, int flags);
+static int _device_open_ro (PedDevice* dev);
+static int _device_close (PedDevice* dev);
static int
_read_fd (int fd, char **buf)
@@ -911,7 +913,7 @@ init_ide (PedDevice* dev)
if (!_device_stat (dev, &dev_stat))
goto error;
- if (!ped_device_open (dev))
+ if (!_device_open_ro (dev))
goto error;
if (ioctl (arch_specific->fd, HDIO_GET_IDENTITY, &hdi)) {
@@ -980,11 +982,11 @@ init_ide (PedDevice* dev)
if (!_device_probe_geometry (dev))
goto error_close_dev;
- ped_device_close (dev);
+ _device_close (dev);
return 1;
error_close_dev:
- ped_device_close (dev);
+ _device_close (dev);
error:
return 0;
}
@@ -1117,7 +1119,7 @@ init_scsi (PedDevice* dev)
char* vendor;
char* product;
- if (!ped_device_open (dev))
+ if (!_device_open_ro (dev))
goto error;
if (ioctl (arch_specific->fd, SCSI_IOCTL_GET_IDLUN, &idlun) < 0) {
@@ -1131,7 +1133,7 @@ init_scsi (PedDevice* dev)
goto error_close_dev;
if (!_device_probe_geometry (dev))
goto error_close_dev;
- ped_device_close (dev);
+ _device_close (dev);
return 1;
}
@@ -1153,11 +1155,11 @@ init_scsi (PedDevice* dev)
if (!_device_probe_geometry (dev))
goto error_close_dev;
- ped_device_close (dev);
+ _device_close (dev);
return 1;
error_close_dev:
- ped_device_close (dev);
+ _device_close (dev);
error:
return 0;
}
@@ -1169,7 +1171,7 @@ init_file (PedDevice* dev)
if (!_device_stat (dev, &dev_stat))
goto error;
- if (!ped_device_open (dev))
+ if (!_device_open_ro (dev))
goto error;
dev->sector_size = PED_SECTOR_SIZE_DEFAULT;
@@ -1196,7 +1198,7 @@ init_file (PedDevice* dev)
goto error_close_dev;
}
- ped_device_close (dev);
+ _device_close (dev);
dev->bios_geom.cylinders = dev->length / 4 / 32;
dev->bios_geom.heads = 4;
@@ -1207,7 +1209,7 @@ init_file (PedDevice* dev)
return 1;
error_close_dev:
- ped_device_close (dev);
+ _device_close (dev);
error:
return 0;
}
@@ -1223,7 +1225,7 @@ init_dasd (PedDevice* dev, const char* m
if (!_device_stat (dev, &dev_stat))
goto error;
- if (!ped_device_open (dev))
+ if (!_device_open_ro (dev))
goto error;
LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
@@ -1263,11 +1265,11 @@ init_dasd (PedDevice* dev, const char* m
dev->model = strdup (model_name);
- ped_device_close (dev);
+ _device_close (dev);
return 1;
error_close_dev:
- ped_device_close (dev);
+ _device_close (dev);
error:
return 0;
}
@@ -1282,7 +1284,7 @@ init_generic (PedDevice* dev, const char
if (!_device_stat (dev, &dev_stat))
goto error;
- if (!ped_device_open (dev))
+ if (!_device_open_ro (dev))
goto error;
ped_exception_fetch_all ();
@@ -1330,11 +1332,11 @@ init_generic (PedDevice* dev, const char
dev->model = strdup (model_name);
- ped_device_close (dev);
+ _device_close (dev);
return 1;
error_close_dev:
- ped_device_close (dev);
+ _device_close (dev);
error:
return 0;
}
@@ -1621,12 +1623,27 @@ retry:
}
static int
+_device_open_ro (PedDevice* dev)
+{
+ int rc = _device_open (dev, RD_MODE);
+ if (rc)
+ dev->open_count++;
+ return rc;
+}
+
+static int
linux_open (PedDevice* dev)
{
+ return _device_open (dev, RW_MODE);
+}
+
+static int
+_device_open (PedDevice* dev, int flags)
+{
LinuxSpecific* arch_specific = LINUX_SPECIFIC (dev);
retry:
- arch_specific->fd = open (dev->path, RW_MODE);
+ arch_specific->fd = open (dev->path, flags);
if (arch_specific->fd == -1) {
char* rw_error_msg = strerror (errno);
@@ -1695,6 +1712,15 @@ linux_refresh_close (PedDevice* dev)
return 1;
}
+static int
+_device_close (PedDevice* dev)
+{
+ int rc = linux_close (dev);
+ if (dev->open_count > 0)
+ dev->open_count--;
+ return rc;
+}
+
#if SIZEOF_OFF_T < 8
static _syscall5(int,_llseek,

158
parted-implement-wipesignatures-option.patch Normal file
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@ -0,0 +1,158 @@
From 4ff404cc2d7ab74d0b1000c0212318dcbb2dda11 Mon Sep 17 00:00:00 2001
From: Petr Uzel <petr.uzel@suse.cz>
Date: Thu, 28 Apr 2016 17:18:44 +0200
Subject: [PATCH] parted: implement --wipesignatures option
With this option, parted uses libblkid to wipe superblock signatures
from a disk region where it is about to create a new partition.
References: bsc#943623
References: fate#319893
---
doc/C/parted.8 | 4 +++
parted/parted.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 74 insertions(+)
Index: parted-3.2/doc/C/parted.8
===================================================================
--- parted-3.2.orig/doc/C/parted.8
+++ parted-3.2/doc/C/parted.8
@@ -30,6 +30,10 @@ never prompts for user intervention
.B -v, --version
displays the version
.TP
+.B --wipesignatures
+mkpart wipes the superblock signatures from the disk region where it is
+about to create the partition
+.TP
.B -a \fIalignment-type\fP, --align \fIalignment-type\fP
Set alignment for newly created partitions, valid alignment types are:
.RS
Index: parted-3.2/parted/parted.c
===================================================================
--- parted-3.2.orig/parted/parted.c
+++ parted-3.2/parted/parted.c
@@ -57,6 +57,11 @@
#include "c-strcase.h"
#include "xalloc.h"
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <blkid/blkid.h>
+
#ifdef ENABLE_MTRACE
#include <mcheck.h>
#endif
@@ -76,6 +81,7 @@ static int MEGABYTE_SECTORS (PedDevice*
enum
{
PRETEND_INPUT_TTY = CHAR_MAX + 1,
+ WIPESIGNATURES = CHAR_MAX + 2,
};
enum
@@ -117,6 +123,7 @@ static struct option const options[] = {
{"script", 0, NULL, 's'},
{"version", 0, NULL, 'v'},
{"align", required_argument, NULL, 'a'},
+ {"wipesignatures", 0, NULL, WIPESIGNATURES},
{"-pretend-input-tty", 0, NULL, PRETEND_INPUT_TTY},
{NULL, 0, NULL, 0}
};
@@ -128,11 +135,13 @@ static const char *const options_help []
{"script", N_("never prompts for user intervention")},
{"version", N_("displays the version")},
{"align=[none|cyl|min|opt]", N_("alignment for new partitions")},
+ {"wipesignatures", N_("wipe superblock signatures when creating partition")},
{NULL, NULL}
};
int opt_script_mode = 0;
int pretend_input_tty = 0;
+int wipesignatures = 0;
int opt_machine_mode = 0;
int disk_is_modified = 0;
int is_toggle_mode = 0;
@@ -650,6 +659,56 @@ _adjust_end_if_iec (PedSector* start, Pe
}
}
+#ifdef USE_BLKID
+static int
+_wipe_signatures (PedDevice *dev, PedSector start, PedSector length)
+{
+ int fd = open (dev->path, O_RDWR);
+ if (fd == -1)
+ goto error;
+
+ blkid_loff_t wipe_offset = start * dev->sector_size;
+ blkid_loff_t wipe_size = length * dev->sector_size;
+
+ blkid_probe pr;
+ pr = blkid_new_probe();
+ if (!pr)
+ goto error_close_fd;
+
+ if (blkid_probe_set_device(pr, fd, wipe_offset, wipe_size) == -1)
+ goto error_free_probe;
+ if (blkid_probe_enable_superblocks(pr, 1) == -1)
+ goto error_free_probe;
+ if (blkid_probe_set_superblocks_flags(pr, BLKID_SUBLKS_MAGIC) == -1)
+ goto error_free_probe;
+
+ while (blkid_do_probe(pr) == 0) {
+ if (blkid_do_wipe(pr, 0) == -1)
+ goto error_free_probe;
+ }
+
+ blkid_free_probe(pr);
+ close(fd);
+ return 1;
+
+error_free_probe:
+ blkid_free_probe(pr);
+
+error_close_fd:
+ close(fd);
+
+error:
+ return 0;
+
+}
+#else
+static int
+_wipe_signatures (PedDevice *dev, PedSector start, PedSector length)
+{
+ return 0;
+}
+#endif
+
static int
do_mkpart (PedDevice** dev, PedDisk** diskp)
{
@@ -840,6 +899,14 @@ do_mkpart (PedDevice** dev, PedDisk** di
if (ped_partition_is_flag_available (part, PED_PARTITION_LBA))
ped_partition_set_flag (part, PED_PARTITION_LBA, 1);
+ if (wipesignatures) {
+ if (!_wipe_signatures(*dev, part->geom.start, part->geom.length))
+ ped_exception_throw (
+ PED_EXCEPTION_WARNING,
+ PED_EXCEPTION_OK,
+ _("Wiping the superblock signatures has failed."));
+ }
+
if (!ped_disk_commit (disk))
goto error;
@@ -2196,6 +2263,9 @@ while (1)
case PRETEND_INPUT_TTY:
pretend_input_tty = 1;
break;
+ case WIPESIGNATURES:
+ wipesignatures = 1;
+ break;
default:
wrong = 1;
break;

13
parted.changes
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@ -1,3 +1,16 @@
-------------------------------------------------------------------
Wed May 18 07:23:08 UTC 2016 - puzel@suse.com
- implement --wipesignatures option (bsc#943623, fate#319893)
- parted-implement-wipesignatures-option.patch
-------------------------------------------------------------------
Fri Mar 11 11:20:12 UTC 2016 - puzel@suse.com
- libparted: Use read only when probing devices on linux
- libparted-Use-read-only-when-probing-devices-on-linu.patch
(bsc#967375)
-------------------------------------------------------------------
Thu Sep 10 09:18:30 UTC 2015 - fvogt@suse.com

6
parted.spec
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@ -1,7 +1,7 @@
#
# spec file for package parted
#
# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
# Copyright (c) 2016 SUSE LINUX GmbH, Nuernberg, Germany.
#
# All modifications and additions to the file contributed by third parties
# remain the property of their copyright owners, unless otherwise agreed
@ -56,6 +56,8 @@ Patch28: libparted-device-mapper-uses-512b-sectors.patch
Patch29: parted-resize-alias-to-resizepart.patch
Patch30: libparted-avoid-libdevice-mapper-warnings.patch
Patch31: parted-do-not-warn-when-shrinking-in-script-mode.patch
Patch32: libparted-Use-read-only-when-probing-devices-on-linu.patch
Patch33: parted-implement-wipesignatures-option.patch
Patch100: parted-fatresize-autoconf.patch
BuildRequires: check-devel
BuildRequires: device-mapper-devel >= 1.02.33
@ -130,6 +132,8 @@ to develop applications that require these.
%patch29 -p1
%patch30 -p1
%patch31 -p1
%patch32 -p1
%patch33 -p1
%patch100 -p1
%build