feat(harmony): add TFTP server functionality (#10)

Introduce a new module and interface for serving files via TFTP in the HAClusterTopology structure. This includes adding the necessary dependencies, creating the `TftpServer` trait, implementing it where appropriate, and integrating its usage within the topology struct.

Reviewed-on: #10
Co-authored-by: Jean-Gabriel Gill-Couture <jg@nationtech.io>
Co-committed-by: Jean-Gabriel Gill-Couture <jg@nationtech.io>

harmony-rs/opnsense-config-xml/src/data/opnsense.rs

@@ -453,57 +453,57 @@ pub struct OPNsenseXmlSection {
 
 #[derive(Debug, YaSerialize, YaDeserialize, PartialEq)]
 pub struct Tftp {
-    general: TftpGeneral,
+    pub general: TftpGeneral,
 }
 
 #[derive(Debug, YaSerialize, YaDeserialize, PartialEq)]
 pub struct TftpGeneral {
     #[yaserde(attribute)]
-    version: String,
-    enabled: u8,
-    listen: String,
+    pub version: String,
+    pub enabled: u8,
+    pub listen: String,
 }
 
 #[derive(Debug, YaSerialize, YaDeserialize, PartialEq)]
 #[yaserde(rename = "IDS")]
 pub struct IDS {
     #[yaserde(attribute)]
-    version: String,
-    rules: MaybeString,
-    policies: MaybeString,
+    pub version: String,
+    pub rules: MaybeString,
+    pub policies: MaybeString,
     #[yaserde(rename = "userDefinedRules")]
-    user_defined_rules: MaybeString,
-    files: MaybeString,
+    pub user_defined_rules: MaybeString,
+    pub files: MaybeString,
     #[yaserde(rename = "fileTags")]
-    file_tags: MaybeString,
-    general: IDSGeneral,
+    pub file_tags: MaybeString,
+    pub general: IDSGeneral,
 }
 
 #[derive(Debug, YaSerialize, YaDeserialize, PartialEq)]
 pub struct IDSGeneral {
-    enabled: Option<u8>,
-    ips: Option<u8>,
-    promisc: Option<u8>,
-    interfaces: String,
-    homenet: String,
+    pub enabled: Option<u8>,
+    pub ips: Option<u8>,
+    pub promisc: Option<u8>,
+    pub interfaces: String,
+    pub homenet: String,
     #[yaserde(rename = "defaultPacketSize")]
-    default_packet_size: MaybeString,
+    pub default_packet_size: MaybeString,
     #[yaserde(rename = "UpdateCron")]
-    update_cron: MaybeString,
+    pub update_cron: MaybeString,
     #[yaserde(rename = "AlertLogrotate")]
-    alert_logrotate: String,
+    pub alert_logrotate: String,
     #[yaserde(rename = "AlertSaveLogs")]
-    alert_save_logs: u8,
+    pub alert_save_logs: u8,
     #[yaserde(rename = "MPMAlgo")]
-    mpm_algo: MaybeString,
-    detect: Detect,
-    syslog: Option<u8>,
-    syslog_eve: Option<u8>,
+    pub mpm_algo: MaybeString,
+    pub detect: Detect,
+    pub syslog: Option<u8>,
+    pub syslog_eve: Option<u8>,
     #[yaserde(rename = "LogPayload")]
-    log_payload: Option<u8>,
-    verbosity: MaybeString,
+    pub log_payload: Option<u8>,
+    pub verbosity: MaybeString,
     #[yaserde(rename = "eveLog")]
-    eve_log: Option<RawXml>,
+    pub eve_log: Option<RawXml>,
 }
 
 #[derive(Debug, YaSerialize, YaDeserialize, PartialEq)]