From fdeea341ed1bae670382e45eb731db1b5838ad21 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Wed, 11 Mar 1998 21:11:04 +0000
Subject: "For I have laboured mightily on Luke's code, and hath broken all I
 saw" - the book of Jeremy, chapter 1 :-).

So here is the mega-merge of the NTDOM branch server code.
It doesn't include the new client side pieces, we'll look
at that later.

This should give the same functionality, server wise, as
the NTDOM branch does, only merged into the main branch.

Any fixes to domain controler functionality should be
added to the main branch, not the NTDOM branch.

This code compiles without warnings on gcc2.8, but will
need further testing before we are sure all the working
functionality of the NTDOM server branch has been
correctly carried over.

I hereby declare the server side of the NTDOM branch
dead (and all who sail in her :-).

Jeremy.
(This used to be commit 118ba4d77a33248e762a2cf843fb7cbc906ee6e7)
---
 source3/smbd/password.c | 103 +++++++++++++++++++++++++++++++++++-------------
 1 file changed, 75 insertions(+), 28 deletions(-)

(limited to 'source3/smbd/password.c')

diff --git a/source3/smbd/password.c b/source3/smbd/password.c
index a51e5f639f..b422dda36c 100644
--- a/source3/smbd/password.c
+++ b/source3/smbd/password.c
@@ -876,6 +876,68 @@ BOOL smb_password_check(char *password, unsigned char *part_passwd, unsigned cha
   return (memcmp(p24, password, 24) == 0);
 }
 
+/****************************************************************************
+ Do a specific test for an smb password being correct, given a smb_password and
+ the lanman and NT responses.
+****************************************************************************/
+
+BOOL smb_password_ok(struct smb_passwd *smb_pass,
+                     uchar lm_pass[24], uchar nt_pass[24])
+{
+  uchar challenge[8];
+
+  if (!lm_pass || !smb_pass) return(False);
+
+  if(smb_pass->acct_ctrl & ACB_DISABLED)
+  {
+    DEBUG(3,("smb_password_ok: account for user %s was disabled.\n", smb_pass->smb_name));
+    return(False);
+  }
+
+  if (!last_challenge(challenge))
+  {
+    DEBUG(1,("smb_password_ok: no challenge done - password failed\n"));
+    return False;
+  }
+
+  DEBUG(4,("smb_password_ok: Checking SMB password for user %s\n", smb_pass->smb_name));
+
+  if ((Protocol >= PROTOCOL_NT1) && (smb_pass->smb_nt_passwd != NULL))
+  {
+    /* We have the NT MD4 hash challenge available - see if we can
+       use it (ie. does it exist in the smbpasswd file).
+     */
+    DEBUG(4,("smb_password_ok: Checking NT MD4 password\n"));
+    if (smb_password_check(nt_pass, smb_pass->smb_nt_passwd, challenge))
+    {
+      DEBUG(4,("smb_password_ok: NT MD4 password check succeeded\n"));
+      return(True);
+    }
+    DEBUG(4,("smb_password_ok: NT MD4 password check failed\n"));
+  }
+
+  /* Try against the lanman password. smb_pass->smb_passwd == NULL means
+     no password, allow access. */
+
+  DEBUG(4,("Checking LM MD4 password\n"));
+
+  if((smb_pass->smb_passwd == NULL) && (smb_pass->acct_ctrl & ACB_PWNOTREQ))
+  {
+    DEBUG(4,("smb_password_ok: no password required for user %s\n", smb_pass->smb_name));
+    return True;
+  }
+
+  if((smb_pass->smb_passwd != NULL) && smb_password_check(lm_pass, smb_pass->smb_passwd, challenge))
+  {
+    DEBUG(4,("smb_password_ok: LM MD4 password check succeeded\n"));
+    return(True);
+  }
+
+  DEBUG(4,("smb_password_ok: LM MD4 password check failed\n"));
+
+  return False;
+}
+
 /****************************************************************************
 check if a username/password is OK
 ****************************************************************************/
@@ -940,6 +1002,13 @@ BOOL password_ok(char *user,char *password, int pwlen, struct passwd *pwd)
 	  return(False);
 	}
 
+      /* Quit if the account was disabled. */
+      if(smb_pass->acct_ctrl & ACB_DISABLED)
+        {
+          DEBUG(3,("password_ok: account for user %s was disabled.\n", user));
+          return(False);
+        }
+
       /* Ensure the uid's match */
       if (smb_pass->smb_userid != pass->pw_uid)
 	{
@@ -947,35 +1016,13 @@ BOOL password_ok(char *user,char *password, int pwlen, struct passwd *pwd)
 	  return(False);
 	}
 
-	if (Protocol >= PROTOCOL_NT1)
-	{
-		/* We have the NT MD4 hash challenge available - see if we can
-		   use it (ie. does it exist in the smbpasswd file).
-		*/
-		if (smb_pass->smb_nt_passwd != NULL)
-		{
-		  DEBUG(4,("Checking NT MD4 password\n"));
-		  if (smb_password_check(password, 
-					smb_pass->smb_nt_passwd, 
-					(unsigned char *)challenge))
-   		  {
-	      	update_protected_database(user,True);
-	        return(True);
-    	  }
-		  DEBUG(4,("NT MD4 password check failed\n"));
-		}
-	}
-
-	/* Try against the lanman password */
-
-      if (smb_password_check(password, 
-			     smb_pass->smb_passwd,
-			     (unsigned char *)challenge)) {
-	update_protected_database(user,True);
-	return(True);
-      }
+      if(smb_password_ok( smb_pass, password, password))
+        {
+          update_protected_database(user,True);
+          return(True);
+        }
 
-	DEBUG(3,("Error smb_password_check failed\n"));
+      DEBUG(3,("Error smb_password_check failed\n"));
     }
 
   DEBUG(4,("Checking password for user %s (l=%d)\n",user,pwlen));
-- 
cgit