krb5: add AS-REQ and TGS-REQ transactions

Fix bug in ticket #4529

rust/src/krb/krb5.rs

@@ -132,6 +132,16 @@ impl KRB5State {
                 if hdr.class() != Class::Application { return 0; }
                 match hdr.tag().0 {
                     10 => {
+                        let req = krb5_parser::parse_as_req(i);
+                        if let Ok((_,kdc_req)) = req {
+                            let mut tx = self.new_tx(direction);
+                            tx.msg_type = MessageType::KRB_AS_REQ;
+                            tx.cname = kdc_req.req_body.cname;
+                            tx.realm = Some(kdc_req.req_body.realm);
+                            tx.sname = kdc_req.req_body.sname;
+                            tx.etype = None;
+                            self.transactions.push(tx);
+                        };
                         self.req_id = 10;
                     },
                     11 => {
@@ -152,6 +162,16 @@ impl KRB5State {
                         self.req_id = 0;
                     },
                     12 => {
+                        let req = krb5_parser::parse_tgs_req(i);
+                        if let Ok((_,kdc_req)) = req {
+                            let mut tx = self.new_tx(direction);
+                            tx.msg_type = MessageType::KRB_TGS_REQ;
+                            tx.cname = kdc_req.req_body.cname;
+                            tx.realm = Some(kdc_req.req_body.realm);
+                            tx.sname = kdc_req.req_body.sname;
+                            tx.etype = None;
+                            self.transactions.push(tx);
+                        };
                         self.req_id = 12;
                     },
                     13 => {