Accepting request 184482 from Base:System

- add grub2-fix-parsing-of-short-LVM-PV-names.patch - fix PV detection in
  grub-probe when PV name is less than 10 charaters
- add grub2-fix-descriptor-leak-in-grub_util_is_imsm.patch - fix decriptor
  leak which later caused LVM warnings during grub-probe invocation

Both problem were introduced in current trunk, version in 12.3 did not
call external lvm tools.

- remove --enable-grub-emu-usb - it is not needed on physical platform (forwarded request 184477 from arvidjaar)

OBS-URL: https://build.opensuse.org/request/show/184482
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/grub2?expand=0&rev=71
This commit is contained in:
Stephan Kulow 2013-07-29 15:41:41 +00:00 committed by Git OBS Bridge
parent 3fb02058de
commit 1bcac6b2d1
4 changed files with 180 additions and 5 deletions

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@ -0,0 +1,92 @@
From: Andrey Borzenkov <arvidjaar@gmail.com>
To: grub-devel@gnu.org
Subject: [PATCH] fix memory and descriptor leaks in grub_util_is_imsm
Descriptor leak caused warning from later vgs invocation. Fix memory
leak (buffer was not always freed) while on it.
Signed-off-by: Andrey Borzenkov <arvidjaar@gmail.com>
---
util/getroot.c | 29 +++++++++++++++--------------
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/util/getroot.c b/util/getroot.c
index 2ad8a55..b30a0d8 100644
--- a/util/getroot.c
+++ b/util/getroot.c
@@ -1455,10 +1455,12 @@ out:
static int
grub_util_is_imsm (const char *os_dev)
{
- int try;
+ int retry;
+ int is_imsm = 0;
+ int container_seen = 0;
const char *dev = os_dev;
- for (try = 0; try < 2; try++)
+ do
{
char *argv[5];
int fd;
@@ -1467,6 +1469,8 @@ grub_util_is_imsm (const char *os_dev)
char *buf = NULL;
size_t len = 0;
+ retry = 0; /* We'll do one more pass if device is part of container */
+
/* execvp has inconvenient types, hence the casts. None of these
strings will actually be modified. */
argv[0] = (char *) "mdadm";
@@ -1499,7 +1503,8 @@ grub_util_is_imsm (const char *os_dev)
while (getline (&buf, &len, mdadm) > 0)
{
- if (strncmp (buf, "MD_CONTAINER=", sizeof ("MD_CONTAINER=") - 1) == 0)
+ if (strncmp (buf, "MD_CONTAINER=", sizeof ("MD_CONTAINER=") - 1) == 0
+ && !container_seen)
{
char *newdev, *ptr;
newdev = xstrdup (buf + sizeof ("MD_CONTAINER=") - 1);
@@ -1508,31 +1513,27 @@ grub_util_is_imsm (const char *os_dev)
ptr[1] = 0;
grub_util_info ("Container of %s is %s", dev, newdev);
dev = newdev;
- goto out;
+ container_seen = retry = 1;
+ break;
}
if (strncmp (buf, "MD_METADATA=imsm",
sizeof ("MD_METADATA=imsm") - 1) == 0)
{
- close (fd);
- waitpid (pid, NULL, 0);
+ is_imsm = 1;
grub_util_info ("%s is imsm", dev);
- if (dev != os_dev)
- free ((void *) dev);
- return 1;
+ break;
}
}
free (buf);
-
- return 0;
-
- out:
close (fd);
waitpid (pid, NULL, 0);
}
+ while (retry);
+
if (dev != os_dev)
free ((void *) dev);
- return 0;
+ return is_imsm;
}
#endif /* __linux__ */
--
tg: (e1a892d..) u/imsm_descriptor_leak (depends on: master)

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@ -0,0 +1,75 @@
From: Andrey Borzenkov <arvidjaar@gmail.com>
To: grub-devel@gnu.org
Subject: [PATCH] fix parsing of LVM PV names for short names
Default format of vgs output is
- two spaces as standard prefix
- PV name left aligned to field width which is 10 characters
This means that if PV name has less than 10 chacaters it has some spaces at
the end.
Example:
linux-chxo:~ # vgs -o pv_name --noheadings | cat -E
/dev/md1 $
/dev/md101$
linux-chxo:~ #
There is no explicit option to turn off alignment; it is implicitly
disabled if one of --separator or --nameprefixes option is used.
--separator was added in 2007, --nameprefixes - in 2009. So let's use
--separator to extend range of versions we are compatible with. Note that
one or another must be used, current parsing is broken otherwise.
Signed-off-by: Andrey Borzenkov <arvidjaar@gmail.com>
---
util/getroot.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/util/getroot.c b/util/getroot.c
index 2ad8a55..3afcf96 100644
--- a/util/getroot.c
+++ b/util/getroot.c
@@ -1322,7 +1322,7 @@ grub_util_get_dev_abstraction (const char *os_dev)
static void
pull_lvm_by_command (const char *os_dev)
{
- char *argv[6];
+ char *argv[8];
int fd;
pid_t pid;
FILE *mdadm;
@@ -1351,12 +1351,17 @@ pull_lvm_by_command (const char *os_dev)
/* execvp has inconvenient types, hence the casts. None of these
strings will actually be modified. */
+ /* by default PV name is left aligned in 10 character field, meaning that
+ we do not know where name ends. Using dummy --separator disables
+ alignment. We have a single field, so separator itself is not output */
argv[0] = (char *) "vgs";
argv[1] = (char *) "--options";
argv[2] = (char *) "pv_name";
argv[3] = (char *) "--noheadings";
- argv[4] = vgname;
- argv[5] = NULL;
+ argv[4] = (char *) "--separator";
+ argv[5] = (char *) ":";
+ argv[6] = vgname;
+ argv[7] = NULL;
pid = exec_pipe (argv, &fd);
free (vgname);
@@ -1376,6 +1381,7 @@ pull_lvm_by_command (const char *os_dev)
while (getline (&buf, &len, mdadm) > 0)
{
char *ptr;
+ /* LVM adds two spaces as standard prefix */
for (ptr = buf; ptr < buf + 2 && *ptr == ' '; ptr++);
if (*ptr == '\0')
continue;
--
tg: (ebd40b6..) u/strip-pv-trailing-blanks (depends on: master)

View File

@ -1,3 +1,12 @@
-------------------------------------------------------------------
Sat Jul 27 10:12:36 UTC 2013 - arvidjaar@gmail.com
- add grub2-fix-parsing-of-short-LVM-PV-names.patch - fix PV detection in
grub-probe when PV name is less than 10 charaters
- add grub2-fix-descriptor-leak-in-grub_util_is_imsm.patch - fix decriptor
leak which later caused LVM warnings during grub-probe invocation
- remove --enable-grub-emu-usb - it is not needed on physical platform
-------------------------------------------------------------------
Tue Jul 9 10:54:41 UTC 2013 - mchang@suse.com

View File

@ -130,6 +130,8 @@ Patch29: grub2-secureboot-chainloader.patch
Patch30: grub2-cdpath.patch
Patch34: grub2-secureboot-use-linuxefi-on-uefi-in-os-prober.patch
Patch35: grub2-linguas.sh-no-rsync.patch
Patch36: grub2-fix-parsing-of-short-LVM-PV-names.patch
Patch37: grub2-fix-descriptor-leak-in-grub_util_is_imsm.patch
Requires: gettext-runtime
%if 0%{?suse_version} >= 1140
Requires: os-prober
@ -244,6 +246,8 @@ mv po/grub.pot po/%{name}.pot
%patch30 -p1
%patch34 -p1
%patch35 -p1
%patch36 -p1
%patch37 -p1
# Generate po/LINGUAS for message catalogs ...
./linguas.sh
@ -345,10 +349,6 @@ cd build
%define _target_platform i386-%{_vendor}-%{_target_os}%{?_gnu}
%endif
%ifnarch ppc ppc64
%define extraconfigure --enable-grub-emu-usb
%endif
# -static is needed so that autoconf script is able to link
# test that looks for _start symbol on 64 bit platforms
../configure TARGET_LDFLAGS=-static \
@ -356,7 +356,6 @@ cd build
--sysconfdir=%{_sysconfdir} \
--target=%{_target_platform} \
--with-platform=%{platform} \
%{?extraconfigure} \
--program-transform-name=s,grub,%{name},
make %{?_smp_mflags}
%endif