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From j..@apache.org
Subject svn commit: r1759471 - in /httpd/httpd/branches/2.4.x: ./ docs/manual/mod/ server/ server/mpm/winnt/
Date Tue, 06 Sep 2016 17:38:35 GMT
Author: jim
Date: Tue Sep  6 17:38:34 2016
New Revision: 1759471

URL: http://svn.apache.org/viewvc?rev=1759471&view=rev
Log:
Merge r1758307, r1758308, r1758309, r1758311 from trunk:

mpm_winnt: remove 'data' AcceptFilter in favor of 'connect'

The 'data' AcceptFilter optimization instructs Windows to wait until
data is received on a connection before completing the AcceptEx
operation. Unfortunately, it seems this isn't performed atomically --
AcceptEx "partially" accepts the incoming connection during the wait for
data, leaving all other incoming connections in the accept queue. This
opens the server to a denial of service.

Since the fix for this requires a substantial rearchitecture (likely
involving multiple outstanding calls to AcceptEx), disable the 'data'
filter for now and replace it with 'connect', which uses the AcceptEx
interface but does not wait for data.

Users running prior releases of httpd on Windows should explicitly move
to a 'connect' AcceptFilter in their configurations if they are
currently using the default 'data' filter.

Many thanks to mludha, Arthur Ramsey, Paul Spangler, and many others for
their assistance in tracking down and diagnosing this issue.

PR: 59970

mpm_winnt: remove the AcceptEx data network bucket

Follow-up to the prior commit: without an incoming data buffer, the
custom network bucket code is now orphaned and we can remove it
entirely. This has the added benefit that we are no longer using the
internal OVERLAPPED.Pointer field, which is discouraged by the MSDN
docs.

mpm_winnt: remove duplication of ap_process_connection

Further follow-up to the previous commit: now that we no longer patch a
network bucket into the brigade, we can revert to calling
ap_process_connection() directly instead of duplicating its logic.

docs: rebuild
Submitted by: jchampion
Reviewed/backported by: jim

Modified:
    httpd/httpd/branches/2.4.x/   (props changed)
    httpd/httpd/branches/2.4.x/CHANGES
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.html.en
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.es
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.fr
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.ja
    httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.tr
    httpd/httpd/branches/2.4.x/server/core.c
    httpd/httpd/branches/2.4.x/server/mpm/winnt/child.c
    httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.c
    httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.h

Propchange: httpd/httpd/branches/2.4.x/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Tue Sep  6 17:38:34 2016
@@ -2,4 +2,4 @@
 /httpd/httpd/branches/2.4.17-protocols-http2:1701609-1705681
 /httpd/httpd/branches/revert-ap-ldap:1150158-1150173
 /httpd/httpd/branches/wombat-integration:723609-723841
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 706275,1706627,1706635,1706637,1706640,1706918,1706942,1706989,1707002,1707230-1707231,1707497,1707519,1707591,1707626-1707627,1707640,1707831,1707883,1707889,1708107,1709008,1709587,1709596,1709602,1709995,1710095,1710105,1710231,1710380,1710391,1710419,1710572,1710583,1710723,1711479,1711553,1711648,1711728,1711902,1712382,1713040,1713209,1713937,1715023,1715255,1715273,1715567-1715568,1715570-1715572,1715576,1715581-1715585,1715886,1716211,1716388,1716460,1716487,1716660,1716940,1717063,1717086,1717639,1717816,1717934,1717958,1717975,1717985,1718314,1718338,1718400,1718514,1718556,1718569,1718598,1719016,1719018,1719189-1719190,1719252,1719254-1719255,1719257,1719967,1720129,1720996,1721313,1721685,1721899,1722137,1722154,1722177,1722195,1722229,1722320,1722328,1722334,1722350-1722351,1722358,1722377,1722572,1722701,1723122,1723143,1723284,1723295,1723567,1723953,1724847,1724857,1724879,1724992-1724993,1724995,1725018,1725031,1725090,1725120,1725149,1725325,1725328,1725387,172539
 2,1725394-1725395,1725445,1725468,1725485,1725489,1725498-1725499,1725516,1725523,1725545,1725567,1725581,1725602,1725822,1725940,1725967,1726009,1726026,1726038,1726049,1726051-1726052,1726055,1726086,1726167,1726233,1726798,1726881,1726888,1727071,1727111,1727317,1727544,1727573,1727603,1727842,1728326,1729208,1729374,1729376,1729826,1729847,1729929-1729931,1729960,1730297,1730640,1730723,1730865,1731929,1732252,1732353,1732369,1732716,1732954,1732986,1733056,1733064,1733068,1733088-1733089,1733275,1733523,1733537,1733691,1734006,1734125,1734239,1734294,1734412,1734561,1734807,1734817,1734947,1734955,1734989,1735088,1735159,1735337,1735608-1735609,1735611,1735668,1735786,1735931,1735935,1735942,1735952,1736156,1736243,1736250,1736463,1736681,1736686,1737006,1737014,1737020-1737021,1737102,1737114,1737125,1737254,1737256,1737265,1737447,1737449,1737451,1737476,1738217,1738331,1738333,1738563,1739008,1739146,1739151,1739193,1739303,1739312,1739738,1739932,1740075,1740084,1740108,174
 0110,1740155,1740735,1741045,1741065,1741112,1741115,1741268,1741310,1741392,1741414,1741446,1741461,1741557,1741564,1741596,1741621,1741648,1741934,1742005,1742135,1742260,1742359,1742444-1742447,1742460,1742791-1742792,1743335,1743517,1743699,1743788,1743816,1744203-1744204,1744206,1744283,1744415,1744421,1744458-1744459,1744712,1744751,1744767,1744778,1744980,1745034,1745175,1745767,1745835,1746207,1746647,1746988,1747170,1747531,1747550,1747735,1747808,1747810,1747946,1748047,1748155,1748368,1748448,1748531,1748653,1748888,1749151,1749401,1749404,1749505,1749658-1749659,1749676,1749678,1749695,1749924-1749925,1750043,1750218,1750335,1750407,1750420,1750507,1750553,1750567,1750750,1750779,1750854-1750855,1750947,1750955,1750960,1751970,1752087,1752096,1752145,1752347,1752415,1753167,1753224,1753228-1753229,1753257,1753498,1753541,1753592,1753594,1753777,1754129,1754391,1754399,1754414,1754534,1755323,1756038,1756611,1756844,1756846,1756852-1756853,1757524,1757534,1757540,1757662-
 1757663,1757985,1758003,1758083,1758307-1758311,1758446,1758558

Modified: httpd/httpd/branches/2.4.x/CHANGES
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/CHANGES?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/CHANGES [utf-8] (original)
+++ httpd/httpd/branches/2.4.x/CHANGES [utf-8] Tue Sep  6 17:38:34 2016
@@ -2,6 +2,9 @@
 
 Changes with Apache 2.4.24
 
+  *) mpm_winnt: Prevent a denial of service when the 'data' AcceptFilter is in
+     use by replacing it with the 'connect' filter. PR 59970. [Jacob Champion]
+
   *) mod_cgid: Resolve a case where a short CGI response causes a subsequent
      CGI to be killed prematurely, resulting in a truncated subsequent
      response. [Eric Covener]

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.html.en
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.html.en?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.html.en (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.html.en Tue Sep  6 17:38:34 2016
@@ -183,20 +183,15 @@ AcceptFilter https data</pre>
        tcp(7)</a> man page.</p>
 
     <p>The default values on Windows are:</p>
-    <pre class="prettyprint lang-config">AcceptFilter http data
-AcceptFilter https data</pre>
+    <pre class="prettyprint lang-config">AcceptFilter http connect
+AcceptFilter https connect</pre>
 
 
     <p>Window's mpm_winnt interprets the AcceptFilter to toggle the AcceptEx()
-       API, and does not support http protocol buffering.  There are two values
-       which utilize the Windows AcceptEx() API and will recycle network
-       sockets between connections.  <code>data</code> waits until data has
-       been transmitted as documented above, and the initial data buffer and
-       network endpoint addresses are all retrieved from the single AcceptEx()
-       invocation.  <code>connect</code> will use the AcceptEx() API, also
-       retrieve the network endpoint addresses, but like <code>none</code>
-       the <code>connect</code> option does not wait for the initial data
-       transmission.</p>
+       API, and does not support http protocol buffering. <code>connect</code>
+       will use the AcceptEx() API, also retrieve the network endpoint
+       addresses, but like <code>none</code> the <code>connect</code> option
+       does not wait for the initial data transmission.</p>
 
     <p>On Windows, <code>none</code> uses accept() rather than AcceptEx()
        and will not recycle sockets between connections.  This is useful for
@@ -204,6 +199,22 @@ AcceptFilter https data</pre>
        network providers such as vpn drivers, or spam, virus or spyware
        filters.</p>
 
+    <div class="warning">
+      <h3>The <code>data</code> AcceptFilter (Windows)</h3>
+
+      <p>For versions 2.4.23 and prior, the Windows <code>data</code> accept
+         filter waited until data had been transmitted and the initial data
+         buffer and network endpoint addresses had been retrieved from the
+         single AcceptEx() invocation. This implementation was subject to a
+         denial of service attack and has been disabled.</p>
+
+      <p>Current releases of httpd default to the <code>connect</code> filter
+         on Windows, and will fall back to <code>connect</code> if
+         <code>data</code> is specified. Users of prior releases are encouraged
+         to add an explicit setting of <code>connect</code> for their
+         AcceptFilter, as shown above.</p>
+    </div>
+
 
 <h3>See also</h3>
 <ul>

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml Tue Sep  6 17:38:34 2016
@@ -85,20 +85,15 @@ AcceptFilter https data
 
     <p>The default values on Windows are:</p>
     <highlight language="config">
-AcceptFilter http data
-AcceptFilter https data
+AcceptFilter http connect
+AcceptFilter https connect
     </highlight>
 
     <p>Window's mpm_winnt interprets the AcceptFilter to toggle the AcceptEx()
-       API, and does not support http protocol buffering.  There are two values
-       which utilize the Windows AcceptEx() API and will recycle network
-       sockets between connections.  <code>data</code> waits until data has
-       been transmitted as documented above, and the initial data buffer and
-       network endpoint addresses are all retrieved from the single AcceptEx()
-       invocation.  <code>connect</code> will use the AcceptEx() API, also
-       retrieve the network endpoint addresses, but like <code>none</code>
-       the <code>connect</code> option does not wait for the initial data
-       transmission.</p>
+       API, and does not support http protocol buffering. <code>connect</code>
+       will use the AcceptEx() API, also retrieve the network endpoint
+       addresses, but like <code>none</code> the <code>connect</code> option
+       does not wait for the initial data transmission.</p>
 
     <p>On Windows, <code>none</code> uses accept() rather than AcceptEx()
        and will not recycle sockets between connections.  This is useful for
@@ -106,6 +101,22 @@ AcceptFilter https data
        network providers such as vpn drivers, or spam, virus or spyware
        filters.</p>
 
+    <note type="warning">
+      <title>The <code>data</code> AcceptFilter (Windows)</title>
+
+      <p>For versions 2.4.23 and prior, the Windows <code>data</code> accept
+         filter waited until data had been transmitted and the initial data
+         buffer and network endpoint addresses had been retrieved from the
+         single AcceptEx() invocation. This implementation was subject to a
+         denial of service attack and has been disabled.</p>
+
+      <p>Current releases of httpd default to the <code>connect</code> filter
+         on Windows, and will fall back to <code>connect</code> if
+         <code>data</code> is specified. Users of prior releases are encouraged
+         to add an explicit setting of <code>connect</code> for their
+         AcceptFilter, as shown above.</p>
+    </note>
+
 </usage>
 <seealso><directive module="core">Protocol</directive></seealso>
 </directivesynopsis>

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.es
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.es?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.es [utf-8] (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.es [utf-8] Tue Sep  6 17:38:34 2016
@@ -1,8 +1,9 @@
 <?xml version="1.0"?>
 <!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
-<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
-<!-- English Revision: 1040494:1750752 (outdated) -->
-
+<?xml-stylesheet type="text/xsl" href="../style/manual.es.xsl"?>
+<!-- English Revision: 1741251:1758307 (outdated) -->
+<!-- Translated by Luis Gil de Bernabé Pfeiffer lgilbernabe[AT]apache.org -->
+<!-- Reviewed by Sergio Ramos-->
 <!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.fr
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.fr?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.fr (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.fr Tue Sep  6 17:38:34 2016
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
 <?xml-stylesheet type="text/xsl" href="../style/manual.fr.xsl"?>
-<!-- English Revision: 1750752 -->
+<!-- English Revision: 1757920:1758307 (outdated) -->
 <!-- French translation : Lucien GENTIS -->
 <!-- Reviewed by : Vincent Deffontaines -->
 

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.ja
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.ja?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.ja [utf-8] (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.ja [utf-8] Tue Sep  6 17:38:34 2016
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
 <?xml-stylesheet type="text/xsl" href="../style/manual.ja.xsl"?>
-<!-- English Revision: 669847:1750752 (outdated) -->
+<!-- English Revision: 669847:1758307 (outdated) -->
 
 <!--
  Licensed to the Apache Software Foundation (ASF) under one or more

Modified: httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.tr
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.tr?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.tr [utf-8] (original)
+++ httpd/httpd/branches/2.4.x/docs/manual/mod/core.xml.tr [utf-8] Tue Sep  6 17:38:34 2016
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
 <?xml-stylesheet type="text/xsl" href="../style/manual.tr.xsl"?>
-<!-- English Revision: 1750752  -->
+<!-- English Revision: 1302855:1758307 (outdated) -->
 <!-- =====================================================
  Translated by: Nilgün Belma Bugüner <nilgun belgeler.gen.tr>
    Reviewed by: Orhan Berent <berent belgeler.gen.tr>

Modified: httpd/httpd/branches/2.4.x/server/core.c
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/server/core.c (original)
+++ httpd/httpd/branches/2.4.x/server/core.c Tue Sep  6 17:38:34 2016
@@ -453,6 +453,10 @@ static void *create_core_server_config(a
 #if APR_HAS_SO_ACCEPTFILTER
         apr_table_setn(conf->accf_map, "http", ACCEPT_FILTER_NAME);
         apr_table_setn(conf->accf_map, "https", "dataready");
+#elif defined(WIN32)
+        /* 'data' is disabled on Windows due to a DoS vuln (PR 59970) */
+        apr_table_setn(conf->accf_map, "http", "connect");
+        apr_table_setn(conf->accf_map, "https", "connect");
 #else
         apr_table_setn(conf->accf_map, "http", "data");
         apr_table_setn(conf->accf_map, "https", "data");

Modified: httpd/httpd/branches/2.4.x/server/mpm/winnt/child.c
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/mpm/winnt/child.c?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/server/mpm/winnt/child.c (original)
+++ httpd/httpd/branches/2.4.x/server/mpm/winnt/child.c Tue Sep  6 17:38:34 2016
@@ -330,8 +330,13 @@ static unsigned int __stdcall winnt_acce
                      "no known accept filter. Using 'none' instead",
                      lr->protocol);
     }
-    else if (strcmp(accf_name, "data") == 0)
-        accf = 2;
+    else if (strcmp(accf_name, "data") == 0) {
+        accf = 1;
+        accf_name = "connect";
+        ap_log_error(APLOG_MARK, APLOG_INFO, 0, ap_server_conf,
+                     APLOGNO(03458) "winnt_accept: 'data' accept filter is no "
+                     "longer supported. Using 'connect' instead");
+    }
     else if (strcmp(accf_name, "connect") == 0)
         accf = 1;
     else if (strcmp(accf_name, "none") == 0)
@@ -357,7 +362,7 @@ static unsigned int __stdcall winnt_acce
    }
 #endif
 
-    if (accf > 0) /* 'data' or 'connect' */
+    if (accf > 0) /* 'connect' */
     {
         if (WSAIoctl(nlsd, SIO_GET_EXTENSION_FUNCTION_POINTER,
                      &GuidAcceptEx, sizeof GuidAcceptEx, 
@@ -383,7 +388,7 @@ static unsigned int __stdcall winnt_acce
     }
     else /* accf == 0, 'none' */
     {
-reinit: /* target of data or connect upon too many AcceptEx failures */
+reinit: /* target of connect upon too many AcceptEx failures */
 
         /* last, low priority event is a not yet accepted connection */
         events[0] = exit_event;
@@ -428,9 +433,8 @@ reinit: /* target of data or connect upo
             }
         }
 
-        if (accf > 0) /* Either 'connect' or 'data' */
+        if (accf > 0) /* 'connect' */
         {
-            DWORD len;
             char *buf;
 
             /* Create and initialize the accept socket */
@@ -460,20 +464,12 @@ reinit: /* target of data or connect upo
                 continue;
             }
 
-            if (accf == 2) { /* 'data' */
-                len = APR_BUCKET_BUFF_SIZE;
-                buf = apr_bucket_alloc(len, context->ba);
-                len -= PADDED_ADDR_SIZE * 2;
-            }
-            else /* (accf == 1) 'connect' */ {
-                len = 0;
-                buf = context->buff;
-            }
+            buf = context->buff;
 
             /* AcceptEx on the completion context. The completion context will be
              * signaled when a connection is accepted.
              */
-            if (!lpfnAcceptEx(nlsd, context->accept_socket, buf, len,
+            if (!lpfnAcceptEx(nlsd, context->accept_socket, buf, 0,
                               PADDED_ADDR_SIZE, PADDED_ADDR_SIZE, &BytesRead,
                               &context->overlapped)) {
                 rv = apr_get_netos_error();
@@ -483,8 +479,6 @@ reinit: /* target of data or connect upo
                      * 1) the client disconnects early
                      * 2) handshake was incomplete
                      */
-                    if (accf == 2)
-                        apr_bucket_free(buf);
                     closesocket(context->accept_socket);
                     context->accept_socket = INVALID_SOCKET;
                     continue;
@@ -499,8 +493,6 @@ reinit: /* target of data or connect upo
                      * 3) the dynamic address / adapter has changed
                      * Give five chances, then fall back on AcceptFilter 'none'
                      */
-                    if (accf == 2)
-                        apr_bucket_free(buf);
                     closesocket(context->accept_socket);
                     context->accept_socket = INVALID_SOCKET;
                     ++err_count;
@@ -520,8 +512,6 @@ reinit: /* target of data or connect upo
                 }
                 else if ((rv != APR_FROM_OS_ERROR(ERROR_IO_PENDING)) &&
                          (rv != APR_FROM_OS_ERROR(WSA_IO_PENDING))) {
-                    if (accf == 2)
-                        apr_bucket_free(buf);
                     closesocket(context->accept_socket);
                     context->accept_socket = INVALID_SOCKET;
                     ++err_count;
@@ -562,14 +552,10 @@ reinit: /* target of data or connect upo
                     /* exit_event triggered or event handle was closed */
                     closesocket(context->accept_socket);
                     context->accept_socket = INVALID_SOCKET;
-                    if (accf == 2)
-                        apr_bucket_free(buf);
                     break;
                 }
 
                 if (context->accept_socket == INVALID_SOCKET) {
-                    if (accf == 2)
-                        apr_bucket_free(buf);
                     continue;
                 }
             }
@@ -592,28 +578,9 @@ reinit: /* target of data or connect upo
             /* Get the local & remote address
              * TODO; error check
              */
-            lpfnGetAcceptExSockaddrs(buf, len, PADDED_ADDR_SIZE, PADDED_ADDR_SIZE,
+            lpfnGetAcceptExSockaddrs(buf, 0, PADDED_ADDR_SIZE, PADDED_ADDR_SIZE,
                                      &context->sa_server, &context->sa_server_len,
                                      &context->sa_client, &context->sa_client_len);
-
-            /* For 'data', craft a bucket for our data result
-             * and pass to worker_main as context->overlapped.Pointer
-             */
-            if (accf == 2 && BytesRead)
-            {
-                apr_bucket *b;
-                b = apr_bucket_heap_create(buf, APR_BUCKET_BUFF_SIZE,
-                                           apr_bucket_free, context->ba);
-                /* Adjust the bucket to refer to the actual bytes read */
-                b->length = BytesRead;
-                context->overlapped.Pointer = b;
-            }
-            else {
-                if (accf == 2) {
-                    apr_bucket_free(buf);
-                }
-                context->overlapped.Pointer = NULL;
-            }
         }
         else /* (accf = 0)  e.g. 'none' */
         {
@@ -687,7 +654,6 @@ reinit: /* target of data or connect upo
              * os_sock_make and os_sock_put that it does not query).
              */
             WSAEventSelect(context->accept_socket, 0, 0);
-            context->overlapped.Pointer = NULL;
             err_count = 0;
 
             context->sa_server_len = sizeof(context->buff) / 2;
@@ -792,24 +758,6 @@ static winnt_conn_ctx_t *winnt_get_conne
     return context;
 }
 
-apr_status_t winnt_insert_network_bucket(conn_rec *c,
-                                         apr_bucket_brigade *bb,
-                                         apr_socket_t *socket)
-{
-    apr_bucket *e;
-    winnt_conn_ctx_t *context = ap_get_module_config(c->conn_config,
-                                                     &mpm_winnt_module);
-    if (context == NULL || (e = context->overlapped.Pointer) == NULL)
-        return AP_DECLINED;
-
-    /* seed the brigade with AcceptEx read heap bucket */
-    APR_BRIGADE_INSERT_HEAD(bb, e);
-    /* also seed the brigade with the client socket. */
-    e = apr_bucket_socket_create(socket, c->bucket_alloc);
-    APR_BRIGADE_INSERT_TAIL(bb, e);
-    return APR_SUCCESS;
-}
-
 /*
  * worker_main()
  * Main entry point for the worker threads. Worker threads block in
@@ -823,8 +771,6 @@ static DWORD __stdcall worker_main(void
     winnt_conn_ctx_t *context = NULL;
     int thread_num = (int)thread_num_val;
     ap_sb_handle_t *sbh;
-    apr_bucket *e;
-    int rc;
     conn_rec *c;
     apr_int32_t disconnected;
 
@@ -850,8 +796,6 @@ static DWORD __stdcall worker_main(void
             }
         }
 
-        e = context->overlapped.Pointer;
-
         ap_create_sb_handle(&sbh, context->ptrans, 0, thread_num);
         c = ap_run_create_connection(context->ptrans, ap_server_conf,
                                      context->sock, thread_num, sbh,
@@ -860,9 +804,6 @@ static DWORD __stdcall worker_main(void
         if (!c) {
             /* ap_run_create_connection closes the socket on failure */
             context->accept_socket = INVALID_SOCKET;
-            if (e) { 
-                apr_bucket_free(e);
-            }
             continue;
         }
 
@@ -870,26 +811,7 @@ static DWORD __stdcall worker_main(void
         apr_os_thread_put(&thd, &osthd, context->ptrans);
         c->current_thread = thd;
 
-        /* follow ap_process_connection(c, context->sock) logic
-         * as it left us no chance to reinject our first data bucket.
-         */
-        ap_update_vhost_given_ip(c);
-
-        rc = ap_run_pre_connection(c, context->sock);
-        if (rc != OK && rc != DONE) {
-            c->aborted = 1;
-        }
-
-        if (e && c->aborted) {
-            apr_bucket_free(e);
-        }
-        else {
-            ap_set_module_config(c->conn_config, &mpm_winnt_module, context);
-        }
-
-        if (!c->aborted) {
-            ap_run_process_connection(c);
-        }
+        ap_process_connection(c, context->sock);
 
         apr_socket_opt_get(context->sock, APR_SO_DISCONNECTED, &disconnected);
 

Modified: httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.c
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.c?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.c (original)
+++ httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.c Tue Sep  6 17:38:34 2016
@@ -1769,8 +1769,6 @@ static void winnt_hooks(apr_pool_t *p)
     ap_hook_mpm(winnt_run, NULL, NULL, APR_HOOK_MIDDLE);
     ap_hook_mpm_query(winnt_query, NULL, NULL, APR_HOOK_MIDDLE);
     ap_hook_mpm_get_name(winnt_get_name, NULL, NULL, APR_HOOK_MIDDLE);
-    ap_hook_insert_network_bucket(winnt_insert_network_bucket, NULL, NULL,
-                                  APR_HOOK_MIDDLE);
 }
 
 AP_DECLARE_MODULE(mpm_winnt) = {

Modified: httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.h
URL: http://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.h?rev=1759471&r1=1759470&r2=1759471&view=diff
==============================================================================
--- httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.h (original)
+++ httpd/httpd/branches/2.4.x/server/mpm/winnt/mpm_winnt.h Tue Sep  6 17:38:34 2016
@@ -91,9 +91,6 @@ void hold_console_open_on_error(void);
 
 /* From child.c: */
 void child_main(apr_pool_t *pconf, DWORD parent_pid);
-apr_status_t winnt_insert_network_bucket(conn_rec *c,
-                                         apr_bucket_brigade *bb,
-                                         apr_socket_t *socket);
 
 #endif /* APACHE_MPM_WINNT_H */
 /** @} */



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