/
gen_key.go
76 lines (56 loc) · 1.75 KB
/
gen_key.go
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// SPDX-FileCopyrightText: 2023 Steffen Vogel <post@steffenvogel.de>
// SPDX-License-Identifier: Apache-2.0
package main
import (
"errors"
"fmt"
"os"
"path/filepath"
"cunicu.li/go-rosenpass/config"
rp "cunicu.li/go-rosenpass"
"github.com/spf13/cobra"
)
func genKeyIntf(_ *cobra.Command, args []string) error {
intfName := args[0]
dir := filepath.Join("/etc/wireguard", intfName)
if err := os.MkdirAll(dir, 0o755); err != nil {
return fmt.Errorf("failed to generate directory: %w", err)
}
pkPath := filepath.Join(dir, "pqpk")
skPath := filepath.Join(dir, "pqsk")
return doGenKeys(pkPath, skPath)
}
func genKey(_ *cobra.Command, args []string) error {
if len(args) > 0 {
cfgFilename := args[0]
cfgFile := config.File{}
if err := cfgFile.LoadFile(cfgFilename); err != nil {
return fmt.Errorf("failed to load config file: %w", err)
}
pkPath = cfgFile.PublicKey
skPath = cfgFile.SecretKey
}
if pkPath == "" || skPath == "" {
return errors.New("Either a config-file or both public-key and secret-key file are required")
}
return doGenKeys(pkPath, skPath)
}
func doGenKeys(pkPath, skPath string) error {
if _, err := os.Stat(pkPath); err == nil && !force {
return fmt.Errorf("public-key file \"%s\" exist, refusing to overwrite it", pkPath)
}
if _, err := os.Stat(skPath); err == nil && !force {
return fmt.Errorf("secret-key file \"%s\" exist, refusing to overwrite it", skPath)
}
spk, ssk, err := rp.GenerateKeyPair()
if err != nil {
return err
}
if err := os.WriteFile(pkPath, spk[:], 0o600); err != nil {
return fmt.Errorf("failed to write static public key: %w", err)
}
if err := os.WriteFile(skPath, ssk[:], 0o600); err != nil {
return fmt.Errorf("failed to write static secret key: %w", err)
}
return nil
}