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From ec56c62c90d2230e8edcfaaad4517be63f5e2183 Mon Sep 17 00:00:00 2001
From: "Richard W.M. Jones" <rjones@redhat.com>
Date: Thu, 20 Jul 2023 11:15:26 +0100
Subject: [PATCH] daemon: lvm: Do reverse device name translation on pvs_full
device fields
Intermittent test failures in virt-filesystems showed that when using
the pvs_full API, the pv_name field in the returned list of structures
was not being reverse translated. As a result internal partition
names could appear in the output of virt-filesystems.
See: https://listman.redhat.com/archives/libguestfs/2023-July/032058.html
(cherry picked from commit 32cb5b45cfbe5edbc7643fc533da70db2d3c6cda)
---
daemon/lvm.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/daemon/lvm.c b/daemon/lvm.c
index 7e76e17c..b8c01f71 100644
--- a/daemon/lvm.c
+++ b/daemon/lvm.c
@@ -146,7 +146,34 @@ do_vgs (void)
guestfs_int_lvm_pv_list *
do_pvs_full (void)
{
- return parse_command_line_pvs ();
+ guestfs_int_lvm_pv_list *r;
+ size_t i;
+ char *din, *dout;
+
+ r = parse_command_line_pvs ();
+ if (r == NULL)
+ /* parse_command_line_pvs has already called reply_with_error */
+ return NULL;
+
+ /* The pv_name fields contain device names which must be reverse
+ * translated. The problem here is that the generator does not have
+ * a "FMountable" field type in types.mli.
+ */
+ for (i = 0; i < r->guestfs_int_lvm_pv_list_len; ++i) {
+ din = r->guestfs_int_lvm_pv_list_val[i].pv_name;
+ if (din) {
+ dout = reverse_device_name_translation (din);
+ if (!dout) {
+ /* reverse_device_name_translation has already called reply_with_error*/
+ /* XXX memory leak here */
+ return NULL;
+ }
+ r->guestfs_int_lvm_pv_list_val[i].pv_name = dout;
+ free (din);
+ }
+ }
+
+ return r;
}
guestfs_int_lvm_vg_list *
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