Proxmox/pve-manager
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hw-address: check if source file changed so cache needs update

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We cache the hash of this file, it makes sense to first check if the
file changed via `stat` and recompute the hash if needed.

This mirrors similar changes done for PMG [0].

[0]: https://git.proxmox.com/?p=pmg-api.git;a=commit;h=16d2ff9f8e90db64114a66d78672f5a03f5ee990.

Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>
This commit is contained in:
Maximiliano Sandoval 2023-10-09 11:35:58 +02:00 committed by Thomas Lamprecht
parent b7588bcdef
commit f6395eb69c
1 changed files with 11 additions and 3 deletions
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14
PVE/API2Tools.pm
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@ -17,14 +17,22 @@ use PVE::SafeSyslog;
use PVE::Storage::Plugin;
my $hwaddress;
my $hwaddress_st = {};
sub get_hwaddress {
return $hwaddress if defined ($hwaddress);
my $fn = '/etc/ssh/ssh_host_rsa_key.pub';
my $st = stat($fn);
if (defined($hwaddress)
&& $hwaddress_st->{mtime} == $st->mtime
&& $hwaddress_st->{ino} == $st->ino
&& $hwaddress_st->{dev} == $st->dev) {
return $hwaddress;
}
my $sshkey = PVE::Tools::file_get_contents($fn);
$hwaddress = uc(md5_hex($sshkey));
$hwaddress_st->@{'mtime', 'ino', 'dev'} = ($st->mtime, $st->ino, $st->dev);
return $hwaddress;
}