feat(validation): validate -config against Talos network configuration schema

README.md

@@ -2,7 +2,7 @@
 
 Tool for writing network metadata in the Talos META partition.
 
-Doc: https://www.talos.dev/v1.8/advanced/metal-network-configuration/
+Doc: https://docs.siderolabs.com/talos/v1.13/platform-specific-installations/bare-metal-platforms/metal-network-configuration
 
 
 Compile:
@@ -16,3 +16,7 @@ talos-meta-tool -device /dev/sda -config config.yaml
 ```
 
 The `-device` flag accepts the full disk (e.g. `/dev/sda`); the META partition is discovered automatically via GPT.
+
+The `-config` file is validated against the Talos v1.13 metal network configuration schema (`network.PlatformConfigSpec`) before writing: unknown fields, malformed addresses and invalid enum values are rejected.
+
+To bypass validation — e.g. when the config uses fields that a newer Talos version has added but this tool's schema does not yet know about — pass `-skip-validation`.

go.mod

@@ -6,11 +6,49 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/siderolabs/go-adv v1.0.0
 	github.com/siderolabs/go-blockdevice/v2 v2.0.26
-	gopkg.in/yaml.v3 v3.0.1
+	github.com/siderolabs/talos/pkg/machinery v1.13.3
+	go.yaml.in/yaml/v4 v4.0.0-rc.4
 )
 
 require (
+	cel.dev/expr v0.25.1 // indirect
+	github.com/antlr4-go/antlr/v4 v4.13.1 // indirect
+	github.com/blang/semver/v4 v4.0.0 // indirect
+	github.com/containerd/go-cni v1.1.13 // indirect
+	github.com/containernetworking/cni v1.3.0 // indirect
+	github.com/cosi-project/runtime v1.14.1 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/gertd/go-pluralize v0.2.1 // indirect
+	github.com/google/cel-go v0.27.0 // indirect
+	github.com/google/go-cmp v0.7.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/jsimonetti/rtnetlink/v2 v2.2.1-0.20260317095713-310581b9c6ac // indirect
+	github.com/mdlayher/ethtool v0.5.1 // indirect
+	github.com/mdlayher/genetlink v1.3.2 // indirect
+	github.com/mdlayher/netlink v1.9.0 // indirect
+	github.com/mdlayher/socket v0.5.1 // indirect
+	github.com/opencontainers/runtime-spec v1.3.0 // indirect
+	github.com/petermattis/goid v0.0.0-20240813172612-4fcff4a6cae7 // indirect
+	github.com/planetscale/vtprotobuf v0.6.1-0.20250313105119-ba97887b0a25 // indirect
+	github.com/ryanuber/go-glob v1.0.0 // indirect
+	github.com/sasha-s/go-deadlock v0.3.5 // indirect
+	github.com/siderolabs/crypto v0.6.5 // indirect
 	github.com/siderolabs/gen v0.8.6 // indirect
-	golang.org/x/sys v0.40.0 // indirect
-	golang.org/x/text v0.33.0 // indirect
+	github.com/siderolabs/go-pointer v1.0.1 // indirect
+	github.com/siderolabs/net v0.4.0 // indirect
+	github.com/siderolabs/protoenc v0.2.4 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	go.uber.org/zap v1.27.1 // indirect
+	golang.org/x/exp v0.0.0-20250128182459-e0ece0dbea4c // indirect
+	golang.org/x/net v0.55.0 // indirect
+	golang.org/x/sync v0.20.0 // indirect
+	golang.org/x/sys v0.45.0 // indirect
+	golang.org/x/text v0.37.0 // indirect
+	golang.org/x/time v0.15.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20260504160031-60b97b32f348 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260504160031-60b97b32f348 // indirect
+	google.golang.org/grpc v1.81.0 // indirect
+	google.golang.org/protobuf v1.36.12-0.20260120151049-f2248ac996af // indirect
 )

go.sum

@@ -1,24 +1,153 @@
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main.go

@@ -12,7 +12,6 @@ import (
 	"github.com/siderolabs/go-adv/adv/talos"
 	"github.com/siderolabs/go-blockdevice/v2/block"
 	"github.com/siderolabs/go-blockdevice/v2/partitioning/gpt"
-	"gopkg.in/yaml.v3"
 )
 
 const FixedTag = 0xA // Fixed tag
@@ -65,14 +64,6 @@ func findMetaPartition(f *os.File) (interface{ io.ReaderAt; io.WriterAt }, error
 	return nil, fmt.Errorf("META partition not found")
 }
 
-func validateYAML(data []byte) ([]byte, error) {
-	var config interface{}
-	if err := yaml.Unmarshal(data, &config); err != nil {
-		return nil, err
-	}
-	return yaml.Marshal(config)
-}
-
 func writeConfig(dev interface{ io.ReaderAt; io.WriterAt }, configData []byte) error {
 	adv, loadErr := talos.NewADV(io.NewSectionReader(dev, 0, int64(talos.Size)))
 	if adv == nil {
@@ -99,6 +90,7 @@ func writeConfig(dev interface{ io.ReaderAt; io.WriterAt }, configData []byte) e
 func main() {
 	devicePath := flag.String("device", "", "Path to the disk device (e.g., /dev/sda)")
 	configPath := flag.String("config", "", "Path to the configuration file (e.g., config.yaml)")
+	skipValidation := flag.Bool("skip-validation", false, "Skip schema validation of the configuration file")
 	flag.Parse()
 
 	if *devicePath == "" || *configPath == "" {
@@ -111,9 +103,10 @@ func main() {
 		log.Fatalf("Error reading configuration file: %v", err)
 	}
 
-	validatedConfigData, err := validateYAML(configData)
-	if err != nil {
-		log.Fatalf("Invalid YAML configuration: %v", err)
+	if !*skipValidation {
+		if err := validateConfig(configData); err != nil {
+			log.Fatalf("Invalid network configuration: %v", err)
+		}
 	}
 
 	device, err := os.OpenFile(*devicePath, os.O_RDWR, 0)
@@ -127,7 +120,7 @@ func main() {
 		log.Fatalf("Error: %v", err)
 	}
 
-	if err := writeConfig(meta, validatedConfigData); err != nil {
+	if err := writeConfig(meta, configData); err != nil {
 		log.Fatalf("Error: %v", err)
 	}