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let "guestfish -i" recognize "--key /dev/mapper/VG-LV🔑password"

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In the spirit of dist-git commit fb7b8af04b ("Run SELinux relabelling in
parallel [for virt-v2v]", 2023-05-04), hand-edit the effect of
"copy-patches.sh": remove the "common/mlcustomize" changes from
"0011-update-common-submodule.patch" (which make no sense for libguestfs,
as libguestfs does not bundle "common/mlcustomize"), namely upstream
commits 17ef57a9bc81 ("mlcustomize: skip SELinux relabeling if it's
disabled", 2023-04-22) and 38e6988c1864 ("mlcustomize/SELinux_relabel.ml:
Use Array.mem", 2023-04-22).

resolves: rhbz#2209279
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Laszlo Ersek 2023-05-23 14:50:48 +02:00
parent fb7b8af04b
commit d5d03ce545
4 changed files with 311 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

160
0011-update-common-submodule.patch Normal file
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@ -0,0 +1,160 @@
From 194a48aef32367c45c555a4d93fb1a3375b0dead Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Fri, 19 May 2023 16:08:47 +0200
Subject: [PATCH] update common submodule
Laszlo Ersek (2):
options/keys: key_store_import_key(): un-constify "key" parameter
options/keys: introduce unescape_device_mapper_lvm()
Richard W.M. Jones (1):
mlcustomize/SELinux_relabel.ml: Use Array.mem
Roman Kagan (1):
mlcustomize: skip SELinux relabeling if it's disabled
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2168506
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20230519140849.310774-2-lersek@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
(cherry picked from commit 83afd6d3d2c82ee3a8f22079ba12ef7eac38ac34)
---
common | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Submodule common 70c10a07..b636c3f2:
diff --git a/common/options/options.h b/common/options/options.h
index 94573ee0..94e8b9ee 100644
--- a/common/options/options.h
+++ b/common/options/options.h
@@ -169,7 +169,8 @@ extern struct matching_key *get_keys (struct key_store *ks, const char *device,
const char *uuid, size_t *nr_matches);
extern void free_keys (struct matching_key *keys, size_t nr_matches);
extern struct key_store *key_store_add_from_selector (struct key_store *ks, const char *selector);
-extern struct key_store *key_store_import_key (struct key_store *ks, const struct key_store_key *key);
+extern struct key_store *key_store_import_key (struct key_store *ks,
+ struct key_store_key *key);
extern bool key_store_requires_network (const struct key_store *ks);
extern void free_key_store (struct key_store *ks);
diff --git a/common/options/keys.c b/common/options/keys.c
index 48f1bc7c..52b27369 100644
--- a/common/options/keys.c
+++ b/common/options/keys.c
@@ -260,8 +260,107 @@ key_store_add_from_selector (struct key_store *ks, const char *selector)
return key_store_import_key (ks, &key);
}
+/* Turn /dev/mapper/VG-LV into /dev/VG/LV, in-place. */
+static void
+unescape_device_mapper_lvm (char *id)
+{
+ static const char dev[] = "/dev/", dev_mapper[] = "/dev/mapper/";
+ const char *input_start;
+ char *output;
+ enum { M_SCAN, M_FILL, M_DONE } mode;
+
+ if (!STRPREFIX (id, dev_mapper))
+ return;
+
+ /* Start parsing "VG-LV" from "id" after "/dev/mapper/". */
+ input_start = id + (sizeof dev_mapper - 1);
+
+ /* Start writing the unescaped "VG/LV" output after "/dev/". */
+ output = id + (sizeof dev - 1);
+
+ for (mode = M_SCAN; mode < M_DONE; ++mode) {
+ char c;
+ const char *input = input_start;
+ const char *hyphen_buffered = NULL;
+ bool single_hyphen_seen = false;
+
+ do {
+ c = *input;
+
+ switch (c) {
+ case '-':
+ if (hyphen_buffered == NULL)
+ /* This hyphen may start an escaped hyphen, or it could be the
+ * separator in VG-LV.
+ */
+ hyphen_buffered = input;
+ else {
+ /* This hyphen completes an escaped hyphen; unescape it. */
+ if (mode == M_FILL)
+ *output++ = '-';
+ hyphen_buffered = NULL;
+ }
+ break;
+
+ case '/':
+ /* Slash characters are forbidden in VG-LV anywhere. If there's any,
+ * we'll find it in the first (i.e., scanning) phase, before we output
+ * anything back to "id".
+ */
+ assert (mode == M_SCAN);
+ return;
+
+ default:
+ /* Encountered a non-slash, non-hyphen character -- which also may be
+ * the terminating NUL.
+ */
+ if (hyphen_buffered != NULL) {
+ /* The non-hyphen character comes after a buffered hyphen, so the
+ * buffered hyphen is supposed to be the single hyphen that separates
+ * VG from LV in VG-LV. There are three requirements for this
+ * separator: (a) it must be unique (we must not have seen another
+ * such separator earlier), (b) it must not be at the start of VG-LV
+ * (because VG would be empty that way), (c) it must not be at the end
+ * of VG-LV (because LV would be empty that way). Should any of these
+ * be violated, we'll catch that during the first (i.e., scanning)
+ * phase, before modifying "id".
+ */
+ if (single_hyphen_seen || hyphen_buffered == input_start ||
+ c == '\0') {
+ assert (mode == M_SCAN);
+ return;
+ }
+
+ /* Translate the separator hyphen to a slash character. */
+ if (mode == M_FILL)
+ *output++ = '/';
+ hyphen_buffered = NULL;
+ single_hyphen_seen = true;
+ }
+
+ /* Output the non-hyphen character (including the terminating NUL)
+ * regardless of whether there was a buffered hyphen separator (which,
+ * by now, we'll have attempted to translate and flush).
+ */
+ if (mode == M_FILL)
+ *output++ = c;
+ }
+
+ ++input;
+ } while (c != '\0');
+
+ /* We must have seen the VG-LV separator. If that's not the case, we'll
+ * catch it before modifying "id".
+ */
+ if (!single_hyphen_seen) {
+ assert (mode == M_SCAN);
+ return;
+ }
+ }
+}
+
struct key_store *
-key_store_import_key (struct key_store *ks, const struct key_store_key *key)
+key_store_import_key (struct key_store *ks, struct key_store_key *key)
{
struct key_store_key *new_keys;
@@ -278,6 +377,7 @@ key_store_import_key (struct key_store *ks, const struct key_store_key *key)
error (EXIT_FAILURE, errno, "realloc");
ks->keys = new_keys;
+ unescape_device_mapper_lvm (key->id);
ks->keys[ks->nr_keys] = *key;
++ks->nr_keys;

97
0012-LUKS-on-LVM-inspection-test-rename-VGs-and-LVs.patch Normal file
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@ -0,0 +1,97 @@
From c95b3086bdbdf840de8d3b24c3ae5e9b847bf588 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Fri, 19 May 2023 16:08:48 +0200
Subject: [PATCH] LUKS-on-LVM inspection test: rename VGs and LVs
In preparation for a subsequent patch, rename "VG" to "Volume-Group", and
"LV<n>" to "Logical-Volume-<n>", in the LUKS-on-LVM inspection test.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2168506
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20230519140849.310774-3-lersek@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
(cherry picked from commit 58e26402334a4696fa08730eecc9098fc270ed1c)
---
test-data/phony-guests/make-fedora-img.pl | 30 +++++++++++--------
.../test-key-option-inspect-luks-on-lvm.sh | 16 +++++-----
2 files changed, 25 insertions(+), 21 deletions(-)
diff --git a/test-data/phony-guests/make-fedora-img.pl b/test-data/phony-guests/make-fedora-img.pl
index c0cb5d0b..6362e225 100755
--- a/test-data/phony-guests/make-fedora-img.pl
+++ b/test-data/phony-guests/make-fedora-img.pl
@@ -224,23 +224,27 @@ EOF
# Create the Volume Group on /dev/sda2.
$g->pvcreate ('/dev/sda2');
- $g->vgcreate ('VG', ['/dev/sda2']);
- $g->lvcreate ('Root', 'VG', 32);
- $g->lvcreate ('LV1', 'VG', 32);
- $g->lvcreate ('LV2', 'VG', 32);
- $g->lvcreate ('LV3', 'VG', 64);
+ $g->vgcreate ('Volume-Group', ['/dev/sda2']);
+ $g->lvcreate ('Root', 'Volume-Group', 32);
+ $g->lvcreate ('Logical-Volume-1', 'Volume-Group', 32);
+ $g->lvcreate ('Logical-Volume-2', 'Volume-Group', 32);
+ $g->lvcreate ('Logical-Volume-3', 'Volume-Group', 64);
# Format each Logical Group as a LUKS device, with a different password.
- $g->luks_format ('/dev/VG/Root', 'FEDORA-Root', 0);
- $g->luks_format ('/dev/VG/LV1', 'FEDORA-LV1', 0);
- $g->luks_format ('/dev/VG/LV2', 'FEDORA-LV2', 0);
- $g->luks_format ('/dev/VG/LV3', 'FEDORA-LV3', 0);
+ $g->luks_format ('/dev/Volume-Group/Root', 'FEDORA-Root', 0);
+ $g->luks_format ('/dev/Volume-Group/Logical-Volume-1', 'FEDORA-LV1', 0);
+ $g->luks_format ('/dev/Volume-Group/Logical-Volume-2', 'FEDORA-LV2', 0);
+ $g->luks_format ('/dev/Volume-Group/Logical-Volume-3', 'FEDORA-LV3', 0);
# Open the LUKS devices. This creates nodes like /dev/mapper/*-luks.
- $g->cryptsetup_open ('/dev/VG/Root', 'FEDORA-Root', 'Root-luks');
- $g->cryptsetup_open ('/dev/VG/LV1', 'FEDORA-LV1', 'LV1-luks');
- $g->cryptsetup_open ('/dev/VG/LV2', 'FEDORA-LV2', 'LV2-luks');
- $g->cryptsetup_open ('/dev/VG/LV3', 'FEDORA-LV3', 'LV3-luks');
+ $g->cryptsetup_open ('/dev/Volume-Group/Root',
+ 'FEDORA-Root', 'Root-luks');
+ $g->cryptsetup_open ('/dev/Volume-Group/Logical-Volume-1',
+ 'FEDORA-LV1', 'LV1-luks');
+ $g->cryptsetup_open ('/dev/Volume-Group/Logical-Volume-2',
+ 'FEDORA-LV2', 'LV2-luks');
+ $g->cryptsetup_open ('/dev/Volume-Group/Logical-Volume-3',
+ 'FEDORA-LV3', 'LV3-luks');
# Phony root filesystem.
$g->mkfs ('ext2', '/dev/mapper/Root-luks', blocksize => 4096, label => 'ROOT');
diff --git a/tests/luks/test-key-option-inspect-luks-on-lvm.sh b/tests/luks/test-key-option-inspect-luks-on-lvm.sh
index 52cd7e98..a8d72b9f 100755
--- a/tests/luks/test-key-option-inspect-luks-on-lvm.sh
+++ b/tests/luks/test-key-option-inspect-luks-on-lvm.sh
@@ -30,10 +30,10 @@ skip_unless_phony_guest fedora-luks-on-lvm.img
# Volume names.
guestfish=(guestfish --listen --ro --inspector
--add ../test-data/phony-guests/fedora-luks-on-lvm.img)
-keys_by_lvname=(--key /dev/VG/Root:key:FEDORA-Root
- --key /dev/VG/LV1:key:FEDORA-LV1
- --key /dev/VG/LV2:key:FEDORA-LV2
- --key /dev/VG/LV3:key:FEDORA-LV3)
+keys_by_lvname=(--key /dev/Volume-Group/Root:key:FEDORA-Root
+ --key /dev/Volume-Group/Logical-Volume-1:key:FEDORA-LV1
+ --key /dev/Volume-Group/Logical-Volume-2:key:FEDORA-LV2
+ --key /dev/Volume-Group/Logical-Volume-3:key:FEDORA-LV3)
# The variable assignment below will fail, and abort the script, if guestfish
# refuses to start up.
@@ -56,10 +56,10 @@ function cleanup_guestfish
trap cleanup_guestfish EXIT
# Get the UUIDs of the LUKS devices.
-uuid_root=$(guestfish --remote -- luks-uuid /dev/VG/Root)
-uuid_lv1=$( guestfish --remote -- luks-uuid /dev/VG/LV1)
-uuid_lv2=$( guestfish --remote -- luks-uuid /dev/VG/LV2)
-uuid_lv3=$( guestfish --remote -- luks-uuid /dev/VG/LV3)
+uuid_root=$(guestfish --remote -- luks-uuid /dev/Volume-Group/Root)
+uuid_lv1=$( guestfish --remote -- luks-uuid /dev/Volume-Group/Logical-Volume-1)
+uuid_lv2=$( guestfish --remote -- luks-uuid /dev/Volume-Group/Logical-Volume-2)
+uuid_lv3=$( guestfish --remote -- luks-uuid /dev/Volume-Group/Logical-Volume-3)
# The actual test.
function check_filesystems

46
0013-LUKS-on-LVM-inspection-test-test-dev-mapper-VG-LV-tr.patch Normal file
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@ -0,0 +1,46 @@
From 15cc20d1f5e0413c1af26c683437995886146eb6 Mon Sep 17 00:00:00 2001
From: Laszlo Ersek <lersek@redhat.com>
Date: Fri, 19 May 2023 16:08:49 +0200
Subject: [PATCH] LUKS-on-LVM inspection test: test /dev/mapper/VG-LV
translation
In the LUKS-on-LVM inspection test, call the "check_filesystems" function
yet another time, now with such "--key" options that exercise the recent
"/dev/mapper/VG-LV" -> "/dev/VG/LV" translation (unescaping) from
libguestfs-common.
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2168506
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20230519140849.310774-4-lersek@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
(cherry picked from commit 32408a9c36165af376f9f42e7d3e158d3da2c76e)
---
.../test-key-option-inspect-luks-on-lvm.sh | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tests/luks/test-key-option-inspect-luks-on-lvm.sh b/tests/luks/test-key-option-inspect-luks-on-lvm.sh
index a8d72b9f..932862b1 100755
--- a/tests/luks/test-key-option-inspect-luks-on-lvm.sh
+++ b/tests/luks/test-key-option-inspect-luks-on-lvm.sh
@@ -101,3 +101,21 @@ eval "$fish_ref"
# Repeat the test.
check_filesystems
+
+# Exit the current guestfish background process.
+guestfish --remote -- exit
+GUESTFISH_PID=
+
+# Start up another guestfish background process, and specify the keys in
+# /dev/mapper/VG-LV format this time.
+keys_by_mapper_lvname=(
+ --key /dev/mapper/Volume--Group-Root:key:FEDORA-Root
+ --key /dev/mapper/Volume--Group-Logical--Volume--1:key:FEDORA-LV1
+ --key /dev/mapper/Volume--Group-Logical--Volume--2:key:FEDORA-LV2
+ --key /dev/mapper/Volume--Group-Logical--Volume--3:key:FEDORA-LV3
+)
+fish_ref=$("${guestfish[@]}" "${keys_by_mapper_lvname[@]}")
+eval "$fish_ref"
+
+# Repeat the test.
+check_filesystems

9
libguestfs.spec
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@ -48,7 +48,7 @@ Summary: Access and modify virtual machine disk images
Name: libguestfs
Epoch: 1
Version: 1.50.1
Release: 4%{?dist}
Release: 5%{?dist}
License: LGPLv2+
# Build only for architectures that have a kernel
@ -96,6 +96,9 @@ Patch0007: 0007-RHEL-Reject-use-of-libguestfs-winsupport-features-ex.patch
Patch0008: 0008-Remove-virt-dib.patch
Patch0009: 0009-lib-Choose-q35-machine-type-for-x86-64.patch
Patch0010: 0010-RHEL-Revert-build-Remove-bundled-copy-of-ocaml-augea.patch
Patch0011: 0011-update-common-submodule.patch
Patch0012: 0012-LUKS-on-LVM-inspection-test-rename-VGs-and-LVs.patch
Patch0013: 0013-LUKS-on-LVM-inspection-test-test-dev-mapper-VG-LV-tr.patch
%if 0%{patches_touch_autotools}
BuildRequires: autoconf, automake, libtool, gettext-devel
@ -1099,6 +1102,10 @@ rm ocaml/html/.gitignore
%changelog
* Tue May 23 2023 Laszlo Ersek <lersek@redhat.com> - 1:1.50.1-5
- let "guestfish -i" recognize "--key /dev/mapper/VG-LV:key:password"
resolves: rhbz#2209279
* Thu May 04 2023 Richard W.M. Jones <rjones@redhat.com> - 1:1.50.1-4
- Rebase libguestfs to 1.50.1
resolves: rhbz#2168625