[pve-devel] [PATCH v3 pve-network 01/11] add subnet plugin

[Alexandre Derumier <aderumier@odiso.com>]

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
---
 PVE/API2/Network/SDN.pm         |   7 +
 PVE/API2/Network/SDN/Makefile   |   2 +-
 PVE/API2/Network/SDN/Subnets.pm | 219 ++++++++++++++++++++++++++++++++
 PVE/Network/SDN/Makefile        |   2 +-
 PVE/Network/SDN/SubnetPlugin.pm | 115 +++++++++++++++++
 PVE/Network/SDN/Subnets.pm      |  55 ++++++++
 debian/control                  |   1 +
 7 files changed, 399 insertions(+), 2 deletions(-)
 create mode 100644 PVE/API2/Network/SDN/Subnets.pm
 create mode 100644 PVE/Network/SDN/SubnetPlugin.pm
 create mode 100644 PVE/Network/SDN/Subnets.pm

diff --git a/PVE/API2/Network/SDN.pm b/PVE/API2/Network/SDN.pm
index 3f497fc..38af746 100644
--- a/PVE/API2/Network/SDN.pm
+++ b/PVE/API2/Network/SDN.pm
@@ -14,6 +14,7 @@ use PVE::Tools qw(run_command);
 use PVE::API2::Network::SDN::Controllers;
 use PVE::API2::Network::SDN::Vnets;
 use PVE::API2::Network::SDN::Zones;
+use PVE::API2::Network::SDN::Subnets;
 
 use base qw(PVE::RESTHandler);
 
@@ -32,6 +33,11 @@ __PACKAGE__->register_method ({
     path => 'controllers',
 });
 
+__PACKAGE__->register_method ({
+    subclass => "PVE::API2::Network::SDN::Subnets",
+    path => 'subnets',
+});
+
 __PACKAGE__->register_method({
     name => 'index',
     path => '',
@@ -61,6 +67,7 @@ __PACKAGE__->register_method({
 	    { id => 'vnets' },
 	    { id => 'zones' },
 	    { id => 'controllers' },
+	    { id => 'subnets' },
 	];
 
 	return $res;
diff --git a/PVE/API2/Network/SDN/Makefile b/PVE/API2/Network/SDN/Makefile
index 6f20d4a..59626fa 100644
--- a/PVE/API2/Network/SDN/Makefile
+++ b/PVE/API2/Network/SDN/Makefile
@@ -1,4 +1,4 @@
-SOURCES=Vnets.pm Zones.pm Controllers.pm
+SOURCES=Vnets.pm Zones.pm Controllers.pm Subnets.pm
 
 
 PERL5DIR=${DESTDIR}/usr/share/perl5
diff --git a/PVE/API2/Network/SDN/Subnets.pm b/PVE/API2/Network/SDN/Subnets.pm
new file mode 100644
index 0000000..26b2aa5
--- /dev/null
+++ b/PVE/API2/Network/SDN/Subnets.pm
@@ -0,0 +1,219 @@
+package PVE::API2::Network::SDN::Subnets;
+
+use strict;
+use warnings;
+
+use PVE::SafeSyslog;
+use PVE::Tools qw(extract_param);
+use PVE::Cluster qw(cfs_read_file cfs_write_file);
+use PVE::Network::SDN;
+use PVE::Network::SDN::Subnets;
+use PVE::Network::SDN::SubnetPlugin;
+
+use Storable qw(dclone);
+use PVE::JSONSchema qw(get_standard_option);
+use PVE::RPCEnvironment;
+
+use PVE::RESTHandler;
+
+use base qw(PVE::RESTHandler);
+
+my $api_sdn_subnets_config = sub {
+    my ($cfg, $id) = @_;
+
+    my $scfg = dclone(PVE::Network::SDN::Subnets::sdn_subnets_config($cfg, $id));
+    $scfg->{subnet} = $id;
+    $scfg->{digest} = $cfg->{digest};
+
+    return $scfg;
+};
+
+__PACKAGE__->register_method ({
+    name => 'index',
+    path => '',
+    method => 'GET',
+    description => "SDN subnets index.",
+    permissions => {
+	description => "Only list entries where you have 'SDN.Audit' or 'SDN.Allocate' permissions on '/sdn/subnets/<subnet>'",
+	user => 'all',
+    },
+    parameters => {
+    	additionalProperties => 0,
+    },
+    returns => {
+	type => 'array',
+	items => {
+	    type => "object",
+	    properties => {},
+	},
+	links => [ { rel => 'child', href => "{subnet}" } ],
+    },
+    code => sub {
+	my ($param) = @_;
+
+	my $rpcenv = PVE::RPCEnvironment::get();
+	my $authuser = $rpcenv->get_user();
+
+
+	my $cfg = PVE::Network::SDN::Subnets::config();
+
+	my @sids = PVE::Network::SDN::Subnets::sdn_subnets_ids($cfg);
+	my $res = [];
+	foreach my $id (@sids) {
+	    my $privs = [ 'SDN.Audit', 'SDN.Allocate' ];
+	    next if !$rpcenv->check_any($authuser, "/sdn/subnets/$id", $privs, 1);
+
+	    my $scfg = &$api_sdn_subnets_config($cfg, $id);
+	    push @$res, $scfg;
+	}
+
+	return $res;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'read',
+    path => '{subnet}',
+    method => 'GET',
+    description => "Read sdn subnet configuration.",
+    permissions => {
+	check => ['perm', '/sdn/subnets/{subnet}', ['SDN.Allocate']],
+   },
+
+    parameters => {
+        additionalProperties => 0,
+        properties => {
+            subnet => get_standard_option('pve-sdn-subnet-id', {
+                completion => \&PVE::Network::SDN::Subnets::complete_sdn_subnets,
+            }),
+        },
+    },
+    returns => { type => 'object' },
+    code => sub {
+	my ($param) = @_;
+
+	my $cfg = PVE::Network::SDN::Subnets::config();
+
+	return &$api_sdn_subnets_config($cfg, $param->{subnet});
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'create',
+    protected => 1,
+    path => '',
+    method => 'POST',
+    description => "Create a new sdn subnet object.",
+    permissions => {
+	check => ['perm', '/sdn/subnets', ['SDN.Allocate']],
+    },
+    parameters => PVE::Network::SDN::SubnetPlugin->createSchema(),
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+
+	my $type = extract_param($param, 'type');
+	my $id = extract_param($param, 'subnet');
+
+        # create /etc/pve/sdn directory
+        PVE::Cluster::check_cfs_quorum();
+        mkdir("/etc/pve/sdn");
+
+        PVE::Network::SDN::lock_sdn_config(
+	    sub {
+
+		my $cfg = PVE::Network::SDN::Subnets::config();
+		my $opts = PVE::Network::SDN::SubnetPlugin->check_config($id, $param, 1, 1);
+
+		my $scfg = undef;
+		if ($scfg = PVE::Network::SDN::Subnets::sdn_subnets_config($cfg, $id, 1)) {
+		    die "sdn subnet object ID '$id' already defined\n";
+		}
+
+		$cfg->{ids}->{$id} = $opts;
+		PVE::Network::SDN::SubnetPlugin->on_update_hook($id, $cfg);
+		PVE::Network::SDN::Subnets::write_config($cfg);
+		PVE::Network::SDN::increase_version();
+
+	    }, "create sdn subnet object failed");
+
+	return undef;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'update',
+    protected => 1,
+    path => '{subnet}',
+    method => 'PUT',
+    description => "Update sdn subnet object configuration.",
+    permissions => {
+	check => ['perm', '/sdn/subnets', ['SDN.Allocate']],
+    },
+    parameters => PVE::Network::SDN::SubnetPlugin->updateSchema(),
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+
+	my $id = extract_param($param, 'subnet');
+	my $digest = extract_param($param, 'digest');
+
+        PVE::Network::SDN::lock_sdn_config(
+	 sub {
+
+	    my $cfg = PVE::Network::SDN::Subnets::config();
+
+	    PVE::SectionConfig::assert_if_modified($cfg, $digest);
+
+	    my $opts = PVE::Network::SDN::SubnetPlugin->check_config($id, $param, 0, 1);
+	    $cfg->{ids}->{$id} = $opts;
+
+	    PVE::Network::SDN::SubnetPlugin->on_update_hook($id, $cfg);
+	    PVE::Network::SDN::Subnets::write_config($cfg);
+	    PVE::Network::SDN::increase_version();
+
+	    }, "update sdn subnet object failed");
+
+	return undef;
+    }});
+
+__PACKAGE__->register_method ({
+    name => 'delete',
+    protected => 1,
+    path => '{subnet}',
+    method => 'DELETE',
+    description => "Delete sdn subnet object configuration.",
+    permissions => {
+	check => ['perm', '/sdn/subnets', ['SDN.Allocate']],
+    },
+    parameters => {
+    	additionalProperties => 0,
+	properties => {
+	    subnet => get_standard_option('pve-sdn-subnet-id', {
+                completion => \&PVE::Network::SDN::Subnets::complete_sdn_subnets,
+            }),
+	},
+    },
+    returns => { type => 'null' },
+    code => sub {
+	my ($param) = @_;
+
+	my $id = extract_param($param, 'subnet');
+
+        PVE::Network::SDN::lock_sdn_config(
+	    sub {
+
+		my $cfg = PVE::Network::SDN::Subnets::config();
+
+		my $scfg = PVE::Network::SDN::Subnets::sdn_subnets_config($cfg, $id);
+
+		my $subnet_cfg = PVE::Network::SDN::Subnets::config();
+
+		delete $cfg->{ids}->{$id};
+		PVE::Network::SDN::Subnets::write_config($cfg);
+		PVE::Network::SDN::increase_version();
+
+	    }, "delete sdn subnet object failed");
+
+
+	return undef;
+    }});
+
+1;
diff --git a/PVE/Network/SDN/Makefile b/PVE/Network/SDN/Makefile
index 7622255..59f8c34 100644
--- a/PVE/Network/SDN/Makefile
+++ b/PVE/Network/SDN/Makefile
@@ -1,4 +1,4 @@
-SOURCES=Vnets.pm VnetPlugin.pm Zones.pm Controllers.pm
+SOURCES=Vnets.pm VnetPlugin.pm Zones.pm Controllers.pm Subnets.pm SubnetPlugin.pm
 
 
 PERL5DIR=${DESTDIR}/usr/share/perl5
diff --git a/PVE/Network/SDN/SubnetPlugin.pm b/PVE/Network/SDN/SubnetPlugin.pm
new file mode 100644
index 0000000..8900681
--- /dev/null
+++ b/PVE/Network/SDN/SubnetPlugin.pm
@@ -0,0 +1,115 @@
+package PVE::Network::SDN::SubnetPlugin;
+
+use strict;
+use warnings;
+
+use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
+use base qw(PVE::SectionConfig);
+use PVE::JSONSchema qw(get_standard_option);
+use PVE::Exception qw(raise raise_param_exc);
+use Net::Subnet qw(subnet_matcher);
+
+PVE::Cluster::cfs_register_file('sdn/subnets.cfg',
+                                 sub { __PACKAGE__->parse_config(@_); },
+                                 sub { __PACKAGE__->write_config(@_); });
+
+PVE::JSONSchema::register_standard_option('pve-sdn-subnet-id', {
+    description => "The SDN subnet object identifier.",
+    type => 'string', format => 'pve-sdn-subnet-id',
+    type => 'string'
+});
+
+PVE::JSONSchema::register_format('pve-sdn-subnet-id', \&parse_sdn_subnet_id);
+sub parse_sdn_subnet_id {
+    my ($id, $noerr) = @_;
+
+    my $cidr = $id =~ s/-/\//r;
+
+    if (!(PVE::JSONSchema::pve_verify_cidrv4($cidr, 1) ||
+          PVE::JSONSchema::pve_verify_cidrv6($cidr, 1)))
+    {
+        return undef if $noerr;
+        die "value does not look like a valid CIDR network\n";
+    }
+    return $id;
+}
+
+my $defaultData = {
+
+    propertyList => {
+        subnet => get_standard_option('pve-sdn-subnet-id',
+            { completion => \&PVE::Network::SDN::Subnets::complete_sdn_subnet }),
+    },
+};
+
+sub type {
+    return 'subnet';
+}
+
+sub private {
+    return $defaultData;
+}
+
+sub properties {
+    return {
+        gateway => {
+            type => 'string', format => 'ip',
+            description => "Subnet Gateway: Will be assign on vnet for layer3 zones",
+        },
+        snat => {
+            type => 'boolean',
+            description => "enable masquerade for this subnet if pve-firewall",
+        },
+	#cloudinit, dhcp options
+        routes => {
+            type => 'string',
+            description => "static routes [network=<network>:gateway=<ip>,network=<network>:gateway=<ip>,... ]",
+        },
+	#cloudinit, dhcp options
+        nameservers => {
+            type => 'string', format => 'address-list',
+            description => " dns nameserver",
+        },
+	#cloudinit, dhcp options
+        searchdomain => {
+            type => 'string',
+        },
+        dhcp => {
+            type => 'boolean',
+            description => "enable dhcp for this subnet",
+        },
+        dns_driver => {
+            type => 'string',
+            description => "Develop some dns registrations plugins (powerdns,...)",
+        },
+        ipam_driver => {
+            type => 'string',
+            description => "use a specific ipam",
+        },
+    };
+}
+
+sub options {
+    return {
+	gateway => { optional => 1 },
+	routes => { optional => 1 },
+	nameservers => { optional => 1 },
+	searchdomain => { optional => 1 },
+	snat => { optional => 1 },
+	dhcp => { optional => 1 },
+	dns_driver => { optional => 1 },
+	ipam_driver => { optional => 1 },
+    };
+}
+
+sub on_update_hook {
+    my ($class, $subnetid, $subnet_cfg) = @_;
+
+    my $subnet = $subnetid =~ s/-/\//r;
+    my $subnet_matcher = subnet_matcher($subnet);
+
+    my $gateway = $subnet_cfg->{ids}->{$subnetid}->{gateway};
+    raise_param_exc({ gateway => "$gateway is not in subnet $subnet"}) if $gateway && !$subnet_matcher->($gateway);
+}
+
+1;
diff --git a/PVE/Network/SDN/Subnets.pm b/PVE/Network/SDN/Subnets.pm
new file mode 100644
index 0000000..454a9cf
--- /dev/null
+++ b/PVE/Network/SDN/Subnets.pm
@@ -0,0 +1,55 @@
+package PVE::Network::SDN::Subnets;
+
+use strict;
+use warnings;
+
+use PVE::Cluster qw(cfs_read_file cfs_write_file cfs_lock_file);
+
+use PVE::Network::SDN::SubnetPlugin;
+PVE::Network::SDN::SubnetPlugin->register();
+PVE::Network::SDN::SubnetPlugin->init();
+
+sub sdn_subnets_config {
+    my ($cfg, $id, $noerr) = @_;
+
+    die "no sdn subnet ID specified\n" if !$id;
+
+    my $scfg = $cfg->{ids}->{$id};
+    die "sdn subnet '$id' does not exist\n" if (!$noerr && !$scfg);
+
+    return $scfg;
+}
+
+sub config {
+    my $config = cfs_read_file("sdn/subnets.cfg");
+}
+
+sub write_config {
+    my ($cfg) = @_;
+
+    cfs_write_file("sdn/subnets.cfg", $cfg);
+}
+
+sub sdn_subnets_ids {
+    my ($cfg) = @_;
+
+    return keys %{$cfg->{ids}};
+}
+
+sub complete_sdn_subnet {
+    my ($cmdname, $pname, $cvalue) = @_;
+
+    my $cfg = PVE::Network::SDN::Subnets::config();
+
+    return  $cmdname eq 'add' ? [] : [ PVE::Network::SDN::Subnets::sdn_subnets_ids($cfg) ];
+}
+
+sub get_subnet {
+    my ($subnetid) = @_;
+
+    my $cfg = PVE::Network::SDN::Subnets::config();
+    my $subnet = PVE::Network::SDN::Subnets::sdn_subnets_config($cfg, $subnetid, 1);
+    return $subnet;
+}
+
+1;
diff --git a/debian/control b/debian/control
index afdf573..8b67d74 100644
--- a/debian/control
+++ b/debian/control
@@ -16,6 +16,7 @@ Breaks: pve-manager (<< 5.2-12)
 Depends: libpve-common-perl (>= 5.0-45),
          perl (>= 5.6.0-16),
          pve-cluster (>= 5.0-32),
+         libnet-subnet-perl,
          ${misc:Depends},
          ${perl:Depends},
 Recommends: frr-pythontools, ifupdown2
-- 
2.20.1