From 1f572a1991fc8d9b08689aa6e3470080467977a7 Mon Sep 17 00:00:00 2001
From: Jayaprakash Mutyala <mutyalax.jayaprakash@intel.com>
Date: Thu, 15 Apr 2021 10:59:42 +0000
Subject: [PATCH] Log RedFish event for Invalid login attempt

This commit adds support for logging RedFish event log while user tries
to attempt login with invalid credentials.
When user trying to login with invalid credentials on HTTPS interface
like WebUI and RedFish, event should be logged in RedFish event log.
This event log is useful for further analysis to debug the root-cause
for failure.

Tested:
1. Verified RedFish validator passed
2. Login with wrong credentials on HTTPS interface.
3. Verified for RedFish/WebUI events. RedFish event logged successfully.
GET: https://BMC-IP/redfish/v1/Systems/system/LogServices/
     EventLog/Entries
Response:
"Members": [
{
    "@odata.id": "/redfish/v1/Systems/system/LogServices/EventLog/
                  Entries/1618466128",
    "@odata.type": "#LogEntry.v1_4_0.LogEntry",
    "Created": "2021-04-15T05:55:28+00:00",
    "EntryType": "Event",
    "Id": "1618466128",
    "Message": "Invalid username or password attempted on HTTPS.",
    "MessageArgs": [
        "HTTPS"
    ],
    "MessageId": "OpenBMC.0.1.InvalidLoginAttempted",
    "Name": "System Event Log Entry",
    "Severity": "Warning"
}

Signed-off-by: Jayaprakash Mutyala <mutyalax.jayaprakash@intel.com>
---
 include/pam_authenticate.hpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/pam_authenticate.hpp b/include/pam_authenticate.hpp
index 12f19c0..01bf301 100644
--- a/include/pam_authenticate.hpp
+++ b/include/pam_authenticate.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <security/pam_appl.h>
+#include <systemd/sd-journal.h>
 
 #include <boost/utility/string_view.hpp>
 
@@ -75,6 +76,10 @@ inline int pamAuthenticateUser(const std::string_view username,
                               PAM_SILENT | PAM_DISALLOW_NULL_AUTHTOK);
     if (retval != PAM_SUCCESS)
     {
+        sd_journal_send("MESSAGE= %s", "Invalid login attempted on HTTPS",
+                        "PRIORITY=%i", LOG_WARNING, "REDFISH_MESSAGE_ID=%s",
+                        "OpenBMC.0.1.InvalidLoginAttempted",
+                        "REDFISH_MESSAGE_ARGS=%s", "HTTPS", NULL);
         pam_end(localAuthHandle, PAM_SUCCESS); // ignore retval
         return retval;
     }
-- 
2.17.1