7.5.0

changelog.md

@@ -1,5 +1,12 @@
 # Changelog
 
+## 2025-06-01 - 7.5.0 - feat(dnssec)
+Add MX record DNSSEC support for proper serialization and authentication of mail exchange records
+
+- Serialize MX records by combining a 16-bit preference with the exchange domain name
+- Enable DNSSEC signature generation for MX records to authenticate mail exchange data
+- Update documentation to include the new MX record DNSSEC support in version v7.4.8
+
 ## 2025-05-30 - 7.4.7 - fix(dnsserver)
 Update documentation to clarify the primaryNameserver option and SOA record behavior in the DNS server. The changes detail how the primaryNameserver configuration customizes the SOA mname, ensures proper DNSSEC signing for RRsets, and updates the configuration interface examples.
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartdns",
-  "version": "7.4.7",
+  "version": "7.5.0",
   "private": false,
   "description": "A robust TypeScript library providing advanced DNS management and resolution capabilities including support for DNSSEC, custom DNS servers, and integration with various DNS providers.",
   "exports": {

readme.hints.md

@@ -110,6 +110,13 @@ The test suite demonstrates:
 2. **SOA Record Serialization**: Implemented proper SOA record encoding for DNSSEC compatibility
 3. **Configurable Primary Nameserver**: Added `primaryNameserver` option to customize SOA mname field
 
+## Recent Improvements (v7.4.8)
+
+1. **MX Record DNSSEC Support**: Implemented MX record serialization for DNSSEC signing
+   - MX records consist of a 16-bit preference value followed by the exchange domain name
+   - Properly serializes both components for DNSSEC signature generation
+   - Enables mail exchange records to be authenticated with DNSSEC
+
 ## Known Limitations
 
 1. **Handler Deduplication**: If the same handler is registered multiple times, it will contribute duplicate records (this may be desired behavior for some use cases)

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartdns',
-  version: '7.4.7',
+  version: '7.5.0',
   description: 'A robust TypeScript library providing advanced DNS management and resolution capabilities including support for DNSSEC, custom DNS servers, and integration with various DNS providers.'
 }

ts_server/classes.dnsserver.ts

@@ -809,6 +809,12 @@ export class DnsServer {
         minimum.writeUInt32BE(data.minimum, 0);
         
         return Buffer.concat([mname, rname, serial, refresh, retry, expire, minimum]);
+      case 'MX':
+        // MX records contain preference (16-bit) and exchange (domain name)
+        const preference = Buffer.alloc(2);
+        preference.writeUInt16BE(data.preference, 0);
+        const exchange = this.nameToBuffer(data.exchange);
+        return Buffer.concat([preference, exchange]);
       // Add cases for other record types as needed
       default:
         throw new Error(`Serialization for record type ${type} is not implemented.`);