[PATCH proxmox-perl-rs 1/2] sdn: fabrics: add BGP config generation

[Hannes Laimer <h.laimer@proxmox.com>]

Add BGP support to the fabric config generation pipeline. This
includes interface name mapping and network interface output for
BGP unnumbered links.

Co-authored-by: Stefan Hanreich <s.hanreich@proxmox.com>
Signed-off-by: Hannes Laimer <h.laimer@proxmox.com>
---
 pve-rs/src/bindings/sdn/fabrics.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/pve-rs/src/bindings/sdn/fabrics.rs b/pve-rs/src/bindings/sdn/fabrics.rs
index 18848c4..8af4f3f 100644
--- a/pve-rs/src/bindings/sdn/fabrics.rs
+++ b/pve-rs/src/bindings/sdn/fabrics.rs
@@ -31,6 +31,7 @@ pub mod pve_rs_sdn_fabrics {
     };
     use proxmox_ve_config::sdn::fabric::section_config::interface::InterfaceName;
     use proxmox_ve_config::sdn::fabric::section_config::node::{Node as ConfigNode, NodeId};
+    use proxmox_ve_config::sdn::fabric::section_config::protocol::bgp::BgpNode;
     use proxmox_ve_config::sdn::fabric::{FabricConfig, FabricEntry};
 
     use crate::sdn::status::{self, RunningConfig};
@@ -361,6 +362,15 @@ pub mod pve_rs_sdn_fabrics {
                         }
                     }
                 }
+                ConfigNode::Bgp(node_section) => {
+                    if let BgpNode::Internal(properties) = node_section.properties_mut() {
+                        for interface in properties.interfaces_mut() {
+                            if let Some(mapped_name) = map_name(&mapping, interface.name())? {
+                                interface.set_name(mapped_name);
+                            }
+                        }
+                    }
+                }
             }
         }
 
@@ -453,6 +463,8 @@ pub mod pve_rs_sdn_fabrics {
                 FabricEntry::Openfabric(_) => {
                     daemons.insert("fabricd");
                 }
+                // enabled by the frr package
+                FabricEntry::Bgp(_) => {}
             };
         }
 
@@ -567,6 +579,17 @@ pub mod pve_rs_sdn_fabrics {
                         }
                     }
                 }
+                ConfigNode::Bgp(node_section) => {
+                    if let BgpNode::Internal(properties) = node_section.properties() {
+                        for interface in properties.interfaces() {
+                            let name = interface.name();
+                            writeln!(interfaces)?;
+                            writeln!(interfaces, "auto {name}")?;
+                            writeln!(interfaces, "iface {name} inet manual")?;
+                            writeln!(interfaces, "\tip-forward 1")?;
+                        }
+                    }
+                }
             }
         }
 
-- 
2.47.3