[pve-devel] [PATCH proxmox-perl-rs 2/7] perl-rs: sdn: add CRUD helpers for OpenFabric fabric management

[Gabriel Goller <g.goller@proxmox.com>]

Add functionality for managing OpenFabric fabrics:
- Implement Rust-backed Perl module PVE::RS::SDN::Fabrics::OpenFabric
- Add CRUD methods for fabric, node, and interface configuration
- Support fabric-specific parameters (hello-intervals, router-id, etc.)

Signed-off-by: Gabriel Goller <g.goller@proxmox.com>
---
 pve-rs/Makefile              |   1 +
 pve-rs/src/sdn/mod.rs        |   1 +
 pve-rs/src/sdn/openfabric.rs | 224 +++++++++++++++++++++++++++++++++++
 3 files changed, 226 insertions(+)
 create mode 100644 pve-rs/src/sdn/openfabric.rs

diff --git a/pve-rs/Makefile b/pve-rs/Makefile
index 86af16eb5e04..6bd9c8a2acec 100644
--- a/pve-rs/Makefile
+++ b/pve-rs/Makefile
@@ -32,6 +32,7 @@ PERLMOD_PACKAGES := \
 	  PVE::RS::OpenId \
 	  PVE::RS::ResourceScheduling::Static \
 	  PVE::RS::SDN::Fabrics \
+	  PVE::RS::SDN::Fabrics::OpenFabric \
 	  PVE::RS::TFA
 
 PERLMOD_PACKAGE_FILES := $(addsuffix .pm,$(subst ::,/,$(PERLMOD_PACKAGES)))
diff --git a/pve-rs/src/sdn/mod.rs b/pve-rs/src/sdn/mod.rs
index 3e3b1376f8d6..36afb099ece0 100644
--- a/pve-rs/src/sdn/mod.rs
+++ b/pve-rs/src/sdn/mod.rs
@@ -1 +1,2 @@
 pub mod fabrics;
+pub mod openfabric;
diff --git a/pve-rs/src/sdn/openfabric.rs b/pve-rs/src/sdn/openfabric.rs
new file mode 100644
index 000000000000..65d92d313b2a
--- /dev/null
+++ b/pve-rs/src/sdn/openfabric.rs
@@ -0,0 +1,224 @@
+#[perlmod::package(name = "PVE::RS::SDN::Fabrics::OpenFabric", lib = "pve_rs")]
+mod export {
+    use std::{collections::HashMap, fmt::Write, net::IpAddr, str, sync::Mutex};
+
+    use anyhow::{Context, Error};
+    use perlmod::Value;
+    use proxmox_frr::serializer::to_raw_config;
+    use proxmox_network_types::{
+        address::Cidr,
+        hostname::Hostname,
+        openfabric::{CsnpInterval, HelloInterval, HelloMultiplier},
+    };
+    use proxmox_schema::property_string::PropertyString;
+    use proxmox_section_config::typed::{ApiSectionDataEntry, SectionConfigData};
+    use proxmox_ve_config::sdn::fabric::{
+        FabricConfig, FrrConfigBuilder, Valid, Validate,
+        openfabric::{
+            FabricId, FabricSection, InterfaceProperties, NodeId, NodeSection,
+            OpenFabricSectionConfig,
+        },
+    };
+    use serde::{Deserialize, Serialize};
+
+    use crate::sdn::fabrics::export::PerlSectionConfig;
+
+    perlmod::declare_magic!(Box<PerlSectionConfig<OpenFabricSectionConfig>> : &PerlSectionConfig<OpenFabricSectionConfig> as "PVE::RS::SDN::Fabrics::OpenFabric");
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct AddFabric {
+        fabric_id: FabricId,
+        hello_interval: Option<HelloInterval>,
+        loopback_prefix: Cidr,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct DeleteFabric {
+        fabric: FabricId,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct DeleteNode {
+        fabric: FabricId,
+        node: Hostname,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct DeleteInterface {
+        fabric: FabricId,
+        node: Hostname,
+        /// interface name
+        name: String,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct EditFabric {
+        fabric: FabricId,
+        hello_interval: Option<HelloInterval>,
+    }
+
+    #[derive(Debug, Deserialize)]
+    pub struct AddNode {
+        fabric: FabricId,
+        node: Hostname,
+        router_id: IpAddr,
+        interfaces: Vec<PropertyString<InterfaceProperties>>,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct EditNode {
+        node: Hostname,
+        fabric: FabricId,
+        router_id: IpAddr,
+        interfaces: Vec<PropertyString<InterfaceProperties>>,
+    }
+
+    #[derive(Debug, Serialize, Deserialize)]
+    pub struct EditInterface {
+        node: Hostname,
+        fabric: FabricId,
+        name: String,
+        passive: bool,
+        hello_interval: Option<HelloInterval>,
+        hello_multiplier: Option<HelloMultiplier>,
+        csnp_interval: Option<CsnpInterval>,
+    }
+
+    fn interface_exists(
+        config: &SectionConfigData<OpenFabricSectionConfig>,
+        interface_name: &str,
+        node_name: &str,
+    ) -> bool {
+        config.sections.iter().any(|(k, v)| {
+            if let OpenFabricSectionConfig::Node(n) = v {
+                k.parse::<NodeId>().ok().is_some_and(|id| {
+                    id.node.as_ref() == node_name
+                        && n.interface.iter().any(|i| i.name == interface_name)
+                })
+            } else {
+                false
+            }
+        })
+    }
+
+    impl PerlSectionConfig<OpenFabricSectionConfig> {
+        pub fn add_fabric(&self, new_config: AddFabric) -> Result<(), anyhow::Error> {
+            let mut config = self.section_config.lock().unwrap();
+            if config.sections.contains_key(new_config.fabric_id.as_ref()) {
+                anyhow::bail!("fabric already exists");
+            }
+            let new_fabric = OpenFabricSectionConfig::Fabric(FabricSection {
+                fabric_id: new_config.fabric_id.clone(),
+                hello_interval: new_config.hello_interval,
+                ty: String::from("fabric"),
+                loopback_prefix: new_config.loopback_prefix,
+            });
+            config
+                .sections
+                .insert(new_config.fabric_id.to_string(), new_fabric);
+
+            config.order.push(new_config.fabric_id.to_string());
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+            Ok(())
+        }
+
+        pub fn add_node(&self, new_config: AddNode) -> Result<(), anyhow::Error> {
+            let nodeid = NodeId::new(new_config.fabric, new_config.node);
+            let nodeid_key = nodeid.to_string();
+
+            let mut config = self.section_config.lock().unwrap();
+            if config.sections.contains_key(&nodeid_key) {
+                anyhow::bail!("node already exists");
+            }
+            if new_config
+                .interfaces
+                .iter()
+                .any(|i| interface_exists(&config, &i.name, nodeid.node.as_ref()))
+            {
+                anyhow::bail!("One interface cannot be a part of two fabrics");
+            }
+            let new_fabric = OpenFabricSectionConfig::Node(NodeSection {
+                router_id: new_config.router_id,
+                interface: new_config.interfaces,
+                node_id: nodeid,
+                ty: String::from("node"),
+            });
+            config.sections.insert(nodeid_key.clone(), new_fabric);
+            config.order.push(nodeid_key);
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+
+            Ok(())
+        }
+
+        pub fn edit_fabric(&self, new_config: EditFabric) -> Result<(), anyhow::Error> {
+            let mut config = self.section_config.lock().unwrap();
+
+            let fabricid = new_config.fabric;
+
+            if let OpenFabricSectionConfig::Fabric(fs) = config
+                .sections
+                .get_mut(fabricid.as_ref())
+                .context("fabric doesn't exist")?
+            {
+                fs.hello_interval = new_config.hello_interval;
+            }
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+            Ok(())
+        }
+
+        pub fn edit_node(&self, new_config: EditNode) -> Result<(), anyhow::Error> {
+            let router_id = new_config.router_id;
+
+            let nodeid = NodeId::new(new_config.fabric, new_config.node).to_string();
+
+            let mut config = self.section_config.lock().unwrap();
+            if let Some(node) = config.sections.get_mut(&nodeid) {
+                if let OpenFabricSectionConfig::Node(n) = node {
+                    n.router_id = router_id;
+                    n.interface = new_config.interfaces;
+                }
+            } else {
+                anyhow::bail!("node not found");
+            }
+
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+            Ok(())
+        }
+
+        pub fn delete_fabric(&self, new_config: DeleteFabric) -> Result<(), anyhow::Error> {
+            let mut config = self.section_config.lock().unwrap();
+
+            let fabricid = new_config.fabric;
+
+            config
+                .sections
+                .remove(fabricid.as_ref())
+                .ok_or(anyhow::anyhow!("fabric not found"))?;
+            // remove all the nodes
+            config.sections.retain(|k, _v| {
+                if let Ok(nodeid) = k.parse::<NodeId>() {
+                    return nodeid.fabric_id != fabricid;
+                }
+                true
+            });
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+            Ok(())
+        }
+
+        pub fn delete_node(&self, new_config: DeleteNode) -> Result<(), anyhow::Error> {
+            let mut config = self.section_config.lock().unwrap();
+            let nodeid = NodeId::new(new_config.fabric, new_config.node).to_string();
+            config
+                .sections
+                .remove(&nodeid)
+                .ok_or(anyhow::anyhow!("node not found"))?;
+            OpenFabricSectionConfig::validate_as_ref(&config)?;
+            Ok(())
+        }
+
+        pub fn write(&self) -> Result<String, anyhow::Error> {
+            let guard = self.section_config.lock().unwrap().clone();
+            OpenFabricSectionConfig::write_section_config("sdn/fabrics/openfabric.cfg", &guard)
+        }
+    }
+}
-- 
2.39.5



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