The GET endpoint lists all nodes from all fabrics - for listing the
nodes of a specific fabric or editing nodes another submodule will be
introduced below the node submodule in a future commit.

Co-authored-by: Gabriel Goller <g.gol...@proxmox.com>
Signed-off-by: Stefan Hanreich <s.hanre...@proxmox.com>
---
 src/PVE/API2/Network/SDN/Fabrics.pm       |   7 ++
 src/PVE/API2/Network/SDN/Fabrics/Makefile |   2 +-
 src/PVE/API2/Network/SDN/Fabrics/Node.pm  | 107 ++++++++++++++++++++++
 3 files changed, 115 insertions(+), 1 deletion(-)
 create mode 100644 src/PVE/API2/Network/SDN/Fabrics/Node.pm

diff --git a/src/PVE/API2/Network/SDN/Fabrics.pm 
b/src/PVE/API2/Network/SDN/Fabrics.pm
index 4ec9b79..dd50aab 100644
--- a/src/PVE/API2/Network/SDN/Fabrics.pm
+++ b/src/PVE/API2/Network/SDN/Fabrics.pm
@@ -9,6 +9,7 @@ use PVE::Network::SDN;
 use PVE::Network::SDN::Fabrics;
 
 use PVE::API2::Network::SDN::Fabrics::Fabric;
+use PVE::API2::Network::SDN::Fabrics::Node;
 
 use PVE::RESTHandler;
 use base qw(PVE::RESTHandler);
@@ -18,6 +19,11 @@ __PACKAGE__->register_method ({
     path => 'fabric',
 });
 
+__PACKAGE__->register_method ({
+    subclass => "PVE::API2::Network::SDN::Fabrics::Node",
+    path => 'node',
+});
+
 __PACKAGE__->register_method ({
     name => 'index',
     path => '',
@@ -44,6 +50,7 @@ __PACKAGE__->register_method ({
 
        my $res = [
            { subdir => 'fabric' },
+           { subdir => 'node' },
            { subdir => 'all' },
        ];
 
diff --git a/src/PVE/API2/Network/SDN/Fabrics/Makefile 
b/src/PVE/API2/Network/SDN/Fabrics/Makefile
index bd644f7..169ebbe 100644
--- a/src/PVE/API2/Network/SDN/Fabrics/Makefile
+++ b/src/PVE/API2/Network/SDN/Fabrics/Makefile
@@ -1,4 +1,4 @@
-SOURCES=Fabric.pm
+SOURCES=Fabric.pm Node.pm
 
 
 PERL5DIR=${DESTDIR}/usr/share/perl5
diff --git a/src/PVE/API2/Network/SDN/Fabrics/Node.pm 
b/src/PVE/API2/Network/SDN/Fabrics/Node.pm
new file mode 100644
index 0000000..958d387
--- /dev/null
+++ b/src/PVE/API2/Network/SDN/Fabrics/Node.pm
@@ -0,0 +1,107 @@
+package PVE::API2::Network::SDN::Fabrics::Node;
+
+use strict;
+use warnings;
+
+use PVE::Tools qw(extract_param);
+
+use PVE::Network::SDN;
+use PVE::Network::SDN::Fabrics;
+
+use PVE::JSONSchema qw(get_standard_option);
+
+use PVE::RESTHandler;
+use base qw(PVE::RESTHandler);
+
+__PACKAGE__->register_method ({
+    name => 'list_nodes',
+    path => '',
+    method => 'GET',
+    permissions => {
+       description => "Only list nodes where you have 'SDN.Audit' or 
'SDN.Allocate' permissions on\n" .
+       "'/sdn/fabrics/<fabric>' and 'Sys.Audit' or 'Sys.Modify' on 
/nodes/<node_id>",
+       user => 'all'
+    },
+    description => "SDN Fabrics Index",
+    parameters => {
+       properties => {
+           running => {
+               type => 'boolean',
+               optional => 1,
+               description => "Display running config.",
+           },
+           pending => {
+               type => 'boolean',
+               optional => 1,
+               description => "Display pending config.",
+           },
+       },
+    },
+    returns => {
+       type => 'array',
+       items => {
+           type => "object",
+           properties => PVE::Network::SDN::Fabrics::node_properties(0),
+       },
+       links => [ { rel => 'child', href => "{fabric_id}" } ],
+    },
+    code => sub {
+       my ($param) = @_;
+
+       my $pending = extract_param($param, 'pending');
+       my $running = extract_param($param, 'running');
+
+       my $digest;
+       my $nodes;
+
+       if ($pending) {
+           my $current_config = PVE::Network::SDN::Fabrics::config();
+           my $running_config = PVE::Network::SDN::Fabrics::config(1);
+
+           my $running_nodes = $running_config
+               ->list_nodes();
+
+           my $current_nodes = $current_config
+               ->list_nodes();
+
+           my $pending_nodes = PVE::Network::SDN::pending_config(
+               { nodes => { ids => $running_nodes }},
+               { ids => $current_nodes },
+               'nodes'
+           );
+
+           $digest = $current_config->digest();
+           $nodes = $pending_nodes->{ids};
+       } elsif ($running) {
+           $nodes = PVE::Network::SDN::Fabrics::config(1)
+               ->list_nodes();
+       } else {
+           my $current_config = PVE::Network::SDN::Fabrics::config();
+
+           $digest = $current_config->digest();
+           $nodes = $current_config->list_nodes();
+       }
+
+       my $rpcenv = PVE::RPCEnvironment::get();
+       my $authuser = $rpcenv->get_user();
+       my $fabric_privs = ['SDN.Audit', 'SDN.Allocate'];
+       my $node_privs = ['Sys.Audit', 'Sys.Modify'];
+
+       my @res;
+
+       for my $node_id (keys %$nodes) {
+           my $node = $nodes->{$node_id};
+           my $fabric_id = $node->{fabric_id};
+
+           next if !$rpcenv->check_any($authuser, "/sdn/fabrics/$fabric_id", 
$fabric_privs, 1);
+           next if !$rpcenv->check_any($authuser, "/nodes/$node_id", 
$node_privs, 1);
+
+           $node->{digest} = $digest if $digest;
+
+           push @res, $node;
+       }
+
+       return \@res;
+    }});
+
+1;
-- 
2.39.5


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