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vzdump: tpmstate: escape drive string

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the volume path could contain escaped ":" or ",", which means their '\'
needs to be escaped another time for passing to HMP.

the same approach is used for hotplugging regular drives in
PVE::QemuServer, and is needed (at least) for RBD storages with IPv6
monhosts or an explicit monhost port.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
This commit is contained in:
Fabian Grünbichler 2022-09-14 15:07:27 +02:00 committed by Thomas Lamprecht
parent 39b56b169a
commit 93e3f756c4
1 changed files with 1 additions and 0 deletions
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PVE/VZDump/QemuServer.pm
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@ -442,6 +442,7 @@ my $attach_tpmstate_drive = sub {
$self->loginfo('attaching TPM drive to QEMU for backup');
my $drive = "file=$task->{tpmpath},if=none,read-only=on,id=drive-tpmstate0-backup";
$drive =~ s/\\/\\\\/g;
my $ret = PVE::QemuServer::Monitor::hmp_cmd($vmid, "drive_add auto \"$drive\"");
die "attaching TPM drive failed\n" if $ret !~ m/OK/s;
};