Add MFA operation note design doc

docs/389ds/design/design.md

@@ -35,6 +35,10 @@ If you are adding a new design document, use the [template](design-template.html
 
 -   [Ansible DS](ansible-ds.html)
 
+## 389 Directory Server 3.0
+
+-   [MFA Operation Note For Auditing](mfa-operation-note-design.html)
+
 ## 389 Directory Server 2.3
 
 -   Rust by default in 2.3

docs/389ds/design/mfa-operation-note-design.md

@@ -0,0 +1,54 @@
+---
+title: "MFA Operation Note For Auditing"
+---
+
+# MFA Operation Note For Auditing
+----------------
+
+Overview
+--------
+
+Create a new **notes** for the access log to indicate if a bind was part of a MFA plugin(e.g. OTP plugin). This does require the plugin itself setting this flag as there is no way to detect this in DS.
+
+Use Cases
+---------
+
+Have a way to audit more information about the bind operation. Currently it's import to log/audit as much about an authentication event as possible.
+
+Design
+------
+
+In the **access log** there will be a new "**notes=**" value:  **M**
+
+    notes=M details="Multi-factor Authentication"
+
+Example:
+
+```
+[01/Mar/2024:16:14:09.226235417 -0500] conn=1 op=0 BIND dn="uid=frank,ou=people,dc=example,dc=com" method=128 version=3
+[01/Mar/2024:16:14:09.232745250 -0500] conn=1 op=0 RESULT err=0 tag=97 nentries=0 wtime=0.000111632 optime=0.006612223 etime=0.006722325 notes=M details="Multi-factor Authentication" dn="uid=frank,ou=people,dc=example,dc=com"
+```
+
+In the **security log**, there is a new value for the bind method "**SIMPLE/MFA**". Note - in the JSON log the forward slash of this value is escaped
+
+```
+{ "date": "[01\/Mar\/2024:16:14:09.232748932 -0500] ", "utc_time": "1709327649.232748932", "event": "BIND_SUCCESS", "dn": "uid=frank,ou=people,dc=example,dc=com", "bind_method": "SIMPLE\/MFA", "root_dn": false, "client_ip": "::1", "server_ip": "::1", "ldap_version": 3, "conn_id": 1, "op_id": 0, "msg": "" }
+```
+
+Major configuration options and enablement
+------------------------------------------
+
+Only the pre-bind authentication plugin can set this flag using the Slapi API:
+
+    slapi_pblock_set_flag_operation_notes(pb, SLAPI_OP_NOTE_MFA_AUTH);
+
+
+Origin
+-------------
+
+<https://github.com/389ds/389-ds-base/issues/6112>
+
+Author
+------
+
+<[email protected]>

docs/389ds/design/security-audit-log-design.md

@@ -78,7 +78,7 @@ Authentication.Authorization
         conn_id: '',
         op_id: '',
         dn: '',
-        bind_method: 'SIMPLE, SASL/GSSAPI, SASL/DIGEST-MD5, SSLCLIENTAUTH',
+        bind_method: 'SIMPLE, SIMPLE/MFA, SASL/GSSAPI, SASL/DIGEST-MD5, SSLCLIENTAUTH',
         root_dn: true/false,
         msg: 'INVALID_PASSWORD, NO_SUCH_ENTRY, ACCOUNT_LOCKED, CERT_MAP_FAILED'
     }