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From: Fiona Ebner <f.ebner@proxmox.com>
To: pve-devel@lists.proxmox.com
Date: Wed, 25 Jun 2025 17:56:34 +0200
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Subject: [pve-devel] [PATCH qemu-server 11/31] agent: avoid dependency on
QemuConfig module
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The QemuConfig module uses qga_check_running() which is planned to be
moved to the Agent module. Loading the config on the call-sites of
agent_cmd(), qemu_exec() and qemu_exec_status() makes it possible to
avoid introducing that cyclic dependency.
Note that the import for the QemuConfig module was already missing.
Also drops unused variables $write and $res from the 'file-write' API
endpoint implementation.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
---
src/PVE/API2/Qemu/Agent.pm | 24 ++++++++++++++++++------
src/PVE/CLI/qm.pm | 6 ++++--
src/PVE/QemuServer/Agent.pm | 12 ++++++------
3 files changed, 28 insertions(+), 14 deletions(-)
diff --git a/src/PVE/API2/Qemu/Agent.pm b/src/PVE/API2/Qemu/Agent.pm
index 3d1952a6..8a9b9264 100644
--- a/src/PVE/API2/Qemu/Agent.pm
+++ b/src/PVE/API2/Qemu/Agent.pm
@@ -257,6 +257,7 @@ __PACKAGE__->register_method({
my ($param) = @_;
my $vmid = $param->{vmid};
+ my $conf = PVE::QemuConfig->load_config($vmid);
my $crypted = $param->{crypted} // 0;
my $args = {
@@ -264,7 +265,8 @@ __PACKAGE__->register_method({
password => encode_base64($param->{password}),
crypted => $crypted ? JSON::true : JSON::false,
};
- my $res = agent_cmd($vmid, "set-user-password", $args, 'cannot set user password');
+ my $res =
+ agent_cmd($vmid, $conf, "set-user-password", $args, 'cannot set user password');
return { result => $res };
},
@@ -317,9 +319,11 @@ __PACKAGE__->register_method({
my ($param) = @_;
my $vmid = $param->{vmid};
+ my $conf = PVE::QemuConfig->load_config($vmid);
+
my $cmd = $param->{command};
- my $res = PVE::QemuServer::Agent::qemu_exec($vmid, $param->{'input-data'}, $cmd);
+ my $res = PVE::QemuServer::Agent::qemu_exec($vmid, $conf, $param->{'input-data'}, $cmd);
return $res;
},
});
@@ -390,9 +394,11 @@ __PACKAGE__->register_method({
my ($param) = @_;
my $vmid = $param->{vmid};
+ my $conf = PVE::QemuConfig->load_config($vmid);
+
my $pid = int($param->{pid});
- my $res = PVE::QemuServer::Agent::qemu_exec_status($vmid, $pid);
+ my $res = PVE::QemuServer::Agent::qemu_exec_status($vmid, $conf, $pid);
return $res;
},
@@ -439,9 +445,10 @@ __PACKAGE__->register_method({
my ($param) = @_;
my $vmid = $param->{vmid};
+ my $conf = PVE::QemuConfig->load_config($vmid);
my $qgafh =
- agent_cmd($vmid, "file-open", { path => $param->{file} }, "can't open file");
+ agent_cmd($vmid, $conf, "file-open", { path => $param->{file} }, "can't open file");
my $bytes_left = $MAX_READ_SIZE;
my $eof = 0;
@@ -516,23 +523,28 @@ __PACKAGE__->register_method({
my ($param) = @_;
my $vmid = $param->{vmid};
+ my $conf = PVE::QemuConfig->load_config($vmid);
my $buf =
($param->{encode} // 1) ? encode_base64($param->{content}) : $param->{content};
my $qgafh = agent_cmd(
$vmid,
+ $conf,
"file-open",
{ path => $param->{file}, mode => 'wb' },
"can't open file",
);
- my $write = agent_cmd(
+
+ agent_cmd(
$vmid,
+ $conf,
"file-write",
{ handle => $qgafh, 'buf-b64' => $buf },
"can't write to file",
);
- my $res = agent_cmd($vmid, "file-close", { handle => $qgafh }, "can't close file");
+
+ agent_cmd($vmid, $conf, "file-close", { handle => $qgafh }, "can't close file");
return;
},
diff --git a/src/PVE/CLI/qm.pm b/src/PVE/CLI/qm.pm
index a7f08cc2..23f71ab0 100755
--- a/src/PVE/CLI/qm.pm
+++ b/src/PVE/CLI/qm.pm
@@ -962,7 +962,9 @@ __PACKAGE__->register_method({
my $args = $param->{'extra-args'};
$args = undef if !$args || !@$args;
- my $res = PVE::QemuServer::Agent::qemu_exec($vmid, $input_data, $args);
+ my $conf = PVE::QemuConfig->load_config($vmid);
+
+ my $res = PVE::QemuServer::Agent::qemu_exec($vmid, $conf, $input_data, $args);
if ($sync) {
my $pid = $res->{pid};
@@ -970,7 +972,7 @@ __PACKAGE__->register_method({
my $starttime = time();
while ($timeout == 0 || (time() - $starttime) < $timeout) {
- my $out = PVE::QemuServer::Agent::qemu_exec_status($vmid, $pid);
+ my $out = PVE::QemuServer::Agent::qemu_exec_status($vmid, $conf, $pid);
if ($out->{exited}) {
$res = $out;
last;
diff --git a/src/PVE/QemuServer/Agent.pm b/src/PVE/QemuServer/Agent.pm
index 5bace202..a81b87fb 100644
--- a/src/PVE/QemuServer/Agent.pm
+++ b/src/PVE/QemuServer/Agent.pm
@@ -47,9 +47,8 @@ sub assert_agent_available {
# loads config, checks if available, executes command, checks for errors
sub agent_cmd {
- my ($vmid, $cmd, $params, $errormsg) = @_;
+ my ($vmid, $conf, $cmd, $params, $errormsg) = @_;
- my $conf = PVE::QemuConfig->load_config($vmid); # also checks if VM exists
assert_agent_available($vmid, $conf);
my $res = PVE::QemuServer::Monitor::mon_cmd($vmid, "guest-$cmd", %$params);
@@ -59,7 +58,7 @@ sub agent_cmd {
}
sub qemu_exec {
- my ($vmid, $input_data, $cmd) = @_;
+ my ($vmid, $conf, $input_data, $cmd) = @_;
my $args = {
'capture-output' => JSON::true,
@@ -83,15 +82,16 @@ sub qemu_exec {
$errmsg .= " (input-data given)";
}
- my $res = agent_cmd($vmid, "exec", $args, $errmsg);
+ my $res = agent_cmd($vmid, $conf, "exec", $args, $errmsg);
return $res;
}
sub qemu_exec_status {
- my ($vmid, $pid) = @_;
+ my ($vmid, $conf, $pid) = @_;
- my $res = agent_cmd($vmid, "exec-status", { pid => $pid }, "can't get exec status for '$pid'");
+ my $res =
+ agent_cmd($vmid, $conf, "exec-status", { pid => $pid }, "can't get exec status for '$pid'");
if ($res->{'out-data'}) {
my $decoded = eval { decode_base64($res->{'out-data'}) };
--
2.47.2
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