From 3dc6390e721d83c2e11465db88d6998bfb61d502 Mon Sep 17 00:00:00 2001
From: Kai Blin <kai.blin@gmail.com>
Date: Wed, 29 Nov 2006 10:58:02 +0100
Subject: [PATCH] secur32: Improve version detection, move all the version
 detection to ntlm.c.

Also, as starting with Samba 3.0.24, ntlm_auth will have all the features
we need, require that as minimal version and remove odd old-version
compatibility hacks.
---
 dlls/secur32/dispatcher.c   | 20 +++++++++++---------
 dlls/secur32/ntlm.c         | 21 ++++++++++++---------
 dlls/secur32/secur32_priv.h |  4 +++-
 3 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/dlls/secur32/dispatcher.c b/dlls/secur32/dispatcher.c
index c150a142ca8..5d821727313 100644
--- a/dlls/secur32/dispatcher.c
+++ b/dlls/secur32/dispatcher.c
@@ -20,6 +20,7 @@
 
 #include "config.h"
 #include <stdarg.h>
+#include <stdio.h>
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
@@ -109,7 +110,7 @@ SECURITY_STATUS fork_helper(PNegoHelper *new_helper, const char *prog,
     else
     {
         *new_helper = helper;
-        helper->version = -1;
+        helper->major = helper->minor = helper->micro = -1;
         helper->password = NULL;
         helper->com_buf = NULL;
         helper->com_buf_size = 0;
@@ -273,6 +274,7 @@ void check_version(PNegoHelper helper)
 {
     char temp[80];
     char *newline;
+    int major = 0, minor = 0, micro = 0, ret;
 
     TRACE("Checking version of helper\n");
     if(helper != NULL)
@@ -286,18 +288,18 @@ void check_version(PNegoHelper helper)
                 temp[len] = 0;
 
             TRACE("Exact version is %s\n", debugstr_a(temp));
-            if(strncmp(temp+8, "4", 1) == 0)
+            ret = sscanf(temp, "Version %d.%d.%d", &major, &minor, &micro);
+            if(ret != 3)
             {
-                helper->version = 4;
-            }
-            else if(strncmp(temp+8, "3", 1) == 0)
-            {
-                helper->version = 3;
+                ERR("Failed to get the helper version.\n");
+                helper->major = helper->minor = helper->micro = -1;
             }
             else
             {
-                TRACE("Unknown version!\n");
-                helper->version = -1;
+                TRACE("Version recognized: %d.%d.%d\n", major, minor, micro);
+                helper->major = major;
+                helper->minor = minor;
+                helper->micro = micro;
             }
         }
     }
diff --git a/dlls/secur32/ntlm.c b/dlls/secur32/ntlm.c
index 9ca3993953a..86d61cff3c0 100644
--- a/dlls/secur32/ntlm.c
+++ b/dlls/secur32/ntlm.c
@@ -34,7 +34,9 @@
 WINE_DEFAULT_DEBUG_CHANNEL(secur32);
 
 #define NTLM_MAX_BUF 1904
-
+#define MIN_NTLM_AUTH_MAJOR_VERSION 3
+#define MIN_NTLM_AUTH_MINOR_VERSION 0
+#define MIN_NTLM_AUTH_MICRO_VERSION 24
 
 static CHAR ntlm_auth[] = "ntlm_auth";
 
@@ -524,7 +526,7 @@ static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
                     != SEC_E_OK)
                 goto isc_end;
             if(!strncmp(buffer, "BH", 2))
-                TRACE("Helper doesn't understand new command set\n");
+                ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
         }
 
         lstrcpynA(buffer, "YR", max_len-1);
@@ -545,8 +547,6 @@ static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
                         max_len-1, &bin_len)) != SEC_E_OK)
             goto isc_end;
 
-        /* We need to set NTLMSSP_NEGOTIATE_ALWAYS_SIGN manually for now */
-        bin[13] |= 0x80;
         /* put the decoded client blob into the out buffer */
 
         ret = SEC_I_CONTINUE_NEEDED;
@@ -653,7 +653,7 @@ static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
 
         if(buffer_len < 3)
         {
-            TRACE("No flags negotiated, or helper does not support GF command\n");
+            TRACE("No flags negotiated.\n");
             helper->neg_flags = 0l;
         }
         else
@@ -670,7 +670,7 @@ static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
 
         if(strncmp(buffer, "BH", 2) == 0)
         {
-            TRACE("Helper does not understand command or no key negotiated.\n");
+            TRACE("No key negotiated.\n");
             helper->valid_session_key = FALSE;
             helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
             /*Generate the dummy session key = MD4(MD4(password))*/
@@ -1753,12 +1753,15 @@ void SECUR32_initNTLMSP(void)
     {
         /* Cheat and allocate a helper anyway, so cleanup later will work. */
         helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
-        helper->version = -1;
+        helper->major = helper->minor = helper->micro = -1;
     }
     else
         check_version(helper);
 
-    if(helper->version > 2)
+    if( (helper->major >  MIN_NTLM_AUTH_MAJOR_VERSION) ||
+        (helper->major  = MIN_NTLM_AUTH_MAJOR_VERSION  &&
+         helper->minor >= MIN_NTLM_AUTH_MINOR_VERSION  &&
+         helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION) )
     {
         SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
         SECUR32_addPackages(provider, 1L, &infoA, &infoW);
@@ -1766,7 +1769,7 @@ void SECUR32_initNTLMSP(void)
     else
     {
         ERR("%s was not found or is outdated. "
-            "Make sure that ntlm_auth >= 3.x is in your path.\n",
+            "Make sure that ntlm_auth >= 3.0.24 is in your path.\n",
             ntlm_auth);
     }
     cleanup_helper(helper);
diff --git a/dlls/secur32/secur32_priv.h b/dlls/secur32/secur32_priv.h
index 7ca43f0e6b3..29c48e741e5 100644
--- a/dlls/secur32/secur32_priv.h
+++ b/dlls/secur32/secur32_priv.h
@@ -65,7 +65,9 @@ typedef struct _NegoHelper {
     int pwlen;
     int pipe_in;
     int pipe_out;
-    int version;
+    int major;
+    int minor;
+    int micro;
     char *com_buf;
     int com_buf_size;
     int com_buf_offset;