use warnings;
use Fcntl qw(F_GETFD F_SETFD FD_CLOEXEC);
-use HTTP::Request;
use IO::File;
use JSON;
-use LWP::UserAgent;
+use MIME::Base64 qw(decode_base64);
use POSIX qw(strftime ENOENT);
+use PVE::APIClient::LWP;
use PVE::JSONSchema qw(get_standard_option);
use PVE::Network;
+use PVE::PBSClient;
use PVE::Storage::Plugin;
use PVE::Tools qw(run_command file_read_firstline trim dir_glob_regex dir_glob_foreach $IPV6RE);
description => "Encryption key. Use 'autogen' to generate one automatically without passphrase.",
type => 'string',
},
+ 'master-pubkey' => {
+ description => "Base64-encoded, PEM-formatted public RSA key. Used to encrypt a copy of the encryption-key which will be added to each encrypted backup.",
+ type => 'string',
+ },
port => {
description => "For non default port.",
type => 'integer',
minimum => 1,
maximum => 65535,
default => 8007,
- }
+ },
};
}
username => { optional => 1 },
password => { optional => 1 },
'encryption-key' => { optional => 1 },
+ 'master-pubkey' => { optional => 1 },
maxfiles => { optional => 1 },
'prune-backups' => { optional => 1 },
fingerprint => { optional => 1 },
return $keyfd;
}
-sub print_volid {
- my ($storeid, $btype, $bid, $btime) = @_;
+sub pbs_master_pubkey_file_name {
+ my ($scfg, $storeid) = @_;
- my $time_str = strftime("%FT%TZ", gmtime($btime));
- my $volname = "backup/${btype}/${bid}/${time_str}";
+ return "/etc/pve/priv/storage/${storeid}.master.pem";
+}
- return "${storeid}:${volname}";
+sub pbs_set_master_pubkey {
+ my ($scfg, $storeid, $key) = @_;
+
+ my $pwfile = pbs_master_pubkey_file_name($scfg, $storeid);
+ mkdir "/etc/pve/priv/storage";
+
+ PVE::Tools::file_set_contents($pwfile, "$key\n");
}
-my sub get_server_with_port {
- my ($scfg) = @_;
+sub pbs_delete_master_pubkey {
+ my ($scfg, $storeid) = @_;
- my $server = $scfg->{server};
- $server = "[$server]" if $server =~ /^$IPV6RE$/;
+ my $pwfile = pbs_master_pubkey_file_name($scfg, $storeid);
- if (my $port = $scfg->{port}) {
- $server .= ":$port" if $port != 8007;
+ if (!unlink $pwfile) {
+ return if $! == ENOENT;
+ die "failed to delete master public key! $!\n";
}
- return $server;
+ delete $scfg->{'master-pubkey'};
+}
+
+sub pbs_get_master_pubkey {
+ my ($scfg, $storeid) = @_;
+
+ my $pwfile = pbs_master_pubkey_file_name($scfg, $storeid);
+
+ return PVE::Tools::file_get_contents($pwfile);
+}
+
+# Returns a file handle if there is a master key, or `undef` if there is not. Dies on error.
+sub pbs_open_master_pubkey {
+ my ($scfg, $storeid) = @_;
+
+ my $master_pubkey_file = pbs_master_pubkey_file_name($scfg, $storeid);
+
+ my $keyfd;
+ if (!open($keyfd, '<', $master_pubkey_file)) {
+ return undef if $! == ENOENT;
+ die "failed to open master public key: $master_pubkey_file: $!\n";
+ }
+
+ return $keyfd;
+}
+
+sub print_volid {
+ my ($storeid, $btype, $bid, $btime) = @_;
+
+ my $time_str = strftime("%FT%TZ", gmtime($btime));
+ my $volname = "backup/${btype}/${bid}/${time_str}";
+
+ return "${storeid}:${volname}";
}
my $USE_CRYPT_PARAMS = {
'upload-log' => 1,
};
+my $USE_MASTER_KEY = {
+ backup => 1,
+};
+
my sub do_raw_client_cmd {
my ($scfg, $storeid, $client_cmd, $param, %opts) = @_;
my $use_crypto = $USE_CRYPT_PARAMS->{$client_cmd};
+ my $use_master = $USE_MASTER_KEY->{$client_cmd};
my $client_exe = '/usr/bin/proxmox-backup-client';
die "executable not found '$client_exe'! Proxmox backup client not installed?\n"
if ! -x $client_exe;
- my $server = get_server_with_port($scfg);
- my $datastore = $scfg->{datastore};
- my $username = $scfg->{username} // 'root@pam';
+ my $repo = PVE::PBSClient::get_repository($scfg);
my $userns_cmd = delete $opts{userns_cmd};
push @$cmd, $client_exe, $client_cmd;
# This must live in the top scope to not get closed before the `run_command`
- my $keyfd;
+ my ($keyfd, $master_fd);
if ($use_crypto) {
if (defined($keyfd = pbs_open_encryption_key($scfg, $storeid))) {
my $flags = fcntl($keyfd, F_GETFD, 0)
fcntl($keyfd, F_SETFD, $flags & ~FD_CLOEXEC)
or die "failed to remove FD_CLOEXEC from encryption key file descriptor\n";
push @$cmd, '--crypt-mode=encrypt', '--keyfd='.fileno($keyfd);
+ if ($use_master && defined($master_fd = pbs_open_master_pubkey($scfg, $storeid))) {
+ my $flags = fcntl($master_fd, F_GETFD, 0)
+ // die "failed to get file descriptor flags: $!\n";
+ fcntl($master_fd, F_SETFD, $flags & ~FD_CLOEXEC)
+ or die "failed to remove FD_CLOEXEC from master public key file descriptor\n";
+ push @$cmd, '--master-pubkey-fd='.fileno($master_fd);
+ }
} else {
push @$cmd, '--crypt-mode=none';
}
push @$cmd, @$param if defined($param);
- push @$cmd, "--repository", "$username\@$server:$datastore";
+ push @$cmd, "--repository", $repo;
local $ENV{PBS_PASSWORD} = pbs_get_password($scfg, $storeid);
pbs_delete_encryption_key($scfg, $storeid);
}
+ if (defined(my $master_key = delete $param{'master-pubkey'})) {
+ die "'master-pubkey' can only be used together with 'encryption-key'\n"
+ if !defined($scfg->{'encryption-key'});
+
+ my $decoded = decode_base64($master_key);
+ pbs_set_master_pubkey($scfg, $storeid, $decoded);
+ $scfg->{'master-pubkey'} = 1;
+ } else {
+ pbs_delete_master_pubkey($scfg, $storeid);
+ }
+
return $res;
}
$scfg->{'encryption-key'} = $decoded_key->{fingerprint} || 1;
} else {
pbs_delete_encryption_key($scfg, $storeid);
+ delete $scfg->{'encryption-key'};
+ }
+ }
+
+ if (exists($param{'master-pubkey'})) {
+ if (defined(my $master_key = delete($param{'master-pubkey'}))) {
+ my $decoded = decode_base64($master_key);
+
+ pbs_set_master_pubkey($scfg, $storeid, $decoded);
+ $scfg->{'master-pubkey'} = 1;
+ } else {
+ pbs_delete_master_pubkey($scfg, $storeid);
}
}
pbs_delete_password($scfg, $storeid);
pbs_delete_encryption_key($scfg, $storeid);
+ pbs_delete_master_pubkey($scfg, $storeid);
return;
}
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
- my $server = get_server_with_port($scfg);
- my $datastore = $scfg->{datastore};
- my $username = $scfg->{username} // 'root@pam';
+ my $repo = PVE::PBSClient::get_repository($scfg);
- # artifical url - we currently do not use that anywhere
- my $path = "pbs://$username\@$server:$datastore/$name";
+ # artificial url - we currently do not use that anywhere
+ my $path = "pbs://$repo/$name";
return ($path, $vmid, $vtype);
}
my ($vtype, $name, $vmid) = $class->parse_volname($volname);
run_client_cmd($scfg, $storeid, "forget", [ $name ], 1);
+
+ return;
}
my $crypt = $file->{'crypt-mode'};
$all = 0 if !$crypt || $crypt ne 'encrypt';
- $any ||= $crypt eq 'encrypt';
+ $any ||= defined($crypt) && $crypt eq 'encrypt';
}
return $any && $all;
}
return ($total, $free, $used, $active);
}
+# TODO: use a client with native rust/proxmox-backup bindings to profit from
+# API schema checks and types
+my sub pbs_api_connect {
+ my ($scfg, $password) = @_;
+
+ my $params = {};
+
+ my $user = $scfg->{username} // 'root@pam';
+
+ if (my $tokenid = PVE::AccessControl::pve_verify_tokenid($user, 1)) {
+ $params->{apitoken} = "PBSAPIToken=${tokenid}:${password}";
+ } else {
+ $params->{password} = $password;
+ $params->{username} = $user;
+ }
+
+ if (my $fp = $scfg->{fingerprint}) {
+ $params->{cached_fingerprints}->{uc($fp)} = 1;
+ }
+
+ my $conn = PVE::APIClient::LWP->new(
+ %$params,
+ host => $scfg->{server},
+ port => $scfg->{port} // 8007,
+ timeout => 7, # cope with a 401 (3s api delay) and high latency
+ cookie_name => 'PBSAuthCookie',
+ );
+
+ return $conn;
+}
+
+# can also be used for not (yet) added storages, pass $scfg with
+# {
+# server
+# user
+# port (optional default to 8007)
+# fingerprint (optional for trusted certs)
+# }
+sub scan_datastores {
+ my ($scfg, $password) = @_;
+
+ my $conn = pbs_api_connect($scfg, $password);
+
+ my $response = eval { $conn->get('/api2/json/admin/datastore', {}) };
+ die "error fetching datastores - $@" if $@;
+
+ return $response;
+}
+
sub activate_storage {
my ($class, $storeid, $scfg, $cache) = @_;
- # a 'status' client command is to expensive here
- # TODO: use a dummy ping API call to ensure the PBS API daemon is available for real
- my $server = $scfg->{server};
- my $port = $scfg->{port} // 8007;
- PVE::Network::tcp_ping($server, $port, 2);
+ my $password = pbs_get_password($scfg, $storeid);
- return 1;
+ my $datastores = eval { scan_datastores($scfg, $password) };
+ die "$storeid: $@" if $@;
+
+ my $datastore = $scfg->{datastore};
+
+ for my $ds (@$datastores) {
+ if ($ds->{store} eq $datastore) {
+ return 1;
+ }
+ }
+
+ die "$storeid: Cannot find datastore '$datastore', check permissions and existence!\n";
}
sub deactivate_storage {
my $size = 0;
foreach my $info (@$data) {
- $size += $info->{size} if $info->{size};
+ if ($info->{size} && $info->{size} =~ /^(\d+)$/) { # untaints
+ $size += $1;
+ }
}
my $used = $size;