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Merge branch 'c8-stream-4' into a8-stream-4

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This commit is contained in:
eabdullin 2023-11-15 17:38:41 +03:00
commit 7fdc3a9fc2
2 changed files with 175 additions and 4 deletions
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163
SOURCES/squid-4.15-halfclosed.patch Normal file
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@ -0,0 +1,163 @@
diff --git a/src/client_side.cc b/src/client_side.cc
index f57f3f7..ab393e4 100644
--- a/src/client_side.cc
+++ b/src/client_side.cc
@@ -906,7 +906,7 @@ ConnStateData::kick()
* We are done with the response, and we are either still receiving request
* body (early response!) or have already stopped receiving anything.
*
- * If we are still receiving, then clientParseRequest() below will fail.
+ * If we are still receiving, then parseRequests() below will fail.
* (XXX: but then we will call readNextRequest() which may succeed and
* execute a smuggled request as we are not done with the current request).
*
@@ -926,28 +926,12 @@ ConnStateData::kick()
* Attempt to parse a request from the request buffer.
* If we've been fed a pipelined request it may already
* be in our read buffer.
- *
- \par
- * This needs to fall through - if we're unlucky and parse the _last_ request
- * from our read buffer we may never re-register for another client read.
*/
- if (clientParseRequests()) {
- debugs(33, 3, clientConnection << ": parsed next request from buffer");
- }
+ parseRequests();
- /** \par
- * Either we need to kick-start another read or, if we have
- * a half-closed connection, kill it after the last request.
- * This saves waiting for half-closed connections to finished being
- * half-closed _AND_ then, sometimes, spending "Timeout" time in
- * the keepalive "Waiting for next request" state.
- */
- if (commIsHalfClosed(clientConnection->fd) && pipeline.empty()) {
- debugs(33, 3, "half-closed client with no pending requests, closing");
- clientConnection->close();
+ if (!isOpen())
return;
- }
/** \par
* At this point we either have a parsed request (which we've
@@ -2058,16 +2042,11 @@ ConnStateData::receivedFirstByte()
commSetConnTimeout(clientConnection, Config.Timeout.request, timeoutCall);
}
-/**
- * Attempt to parse one or more requests from the input buffer.
- * Returns true after completing parsing of at least one request [header]. That
- * includes cases where parsing ended with an error (e.g., a huge request).
- */
-bool
-ConnStateData::clientParseRequests()
+/// Attempt to parse one or more requests from the input buffer.
+/// May close the connection.
+void
+ConnStateData::parseRequests()
{
- bool parsed_req = false;
-
debugs(33, 5, HERE << clientConnection << ": attempting to parse");
// Loop while we have read bytes that are not needed for producing the body
@@ -2116,8 +2095,6 @@ ConnStateData::clientParseRequests()
processParsedRequest(context);
- parsed_req = true; // XXX: do we really need to parse everything right NOW ?
-
if (context->mayUseConnection()) {
debugs(33, 3, HERE << "Not parsing new requests, as this request may need the connection");
break;
@@ -2130,8 +2107,19 @@ ConnStateData::clientParseRequests()
}
}
- /* XXX where to 'finish' the parsing pass? */
- return parsed_req;
+ debugs(33, 7, "buffered leftovers: " << inBuf.length());
+
+ if (isOpen() && commIsHalfClosed(clientConnection->fd)) {
+ if (pipeline.empty()) {
+ // we processed what we could parse, and no more data is coming
+ debugs(33, 5, "closing half-closed without parsed requests: " << clientConnection);
+ clientConnection->close();
+ } else {
+ // we parsed what we could, and no more data is coming
+ debugs(33, 5, "monitoring half-closed while processing parsed requests: " << clientConnection);
+ flags.readMore = false; // may already be false
+ }
+ }
}
void
@@ -2148,23 +2136,7 @@ ConnStateData::afterClientRead()
if (pipeline.empty())
fd_note(clientConnection->fd, "Reading next request");
- if (!clientParseRequests()) {
- if (!isOpen())
- return;
- /*
- * If the client here is half closed and we failed
- * to parse a request, close the connection.
- * The above check with connFinishedWithConn() only
- * succeeds _if_ the buffer is empty which it won't
- * be if we have an incomplete request.
- * XXX: This duplicates ConnStateData::kick
- */
- if (pipeline.empty() && commIsHalfClosed(clientConnection->fd)) {
- debugs(33, 5, clientConnection << ": half-closed connection, no completed request parsed, connection closing.");
- clientConnection->close();
- return;
- }
- }
+ parseRequests();
if (!isOpen())
return;
@@ -3945,7 +3917,7 @@ ConnStateData::notePinnedConnectionBecameIdle(PinnedIdleContext pic)
startPinnedConnectionMonitoring();
if (pipeline.empty())
- kick(); // in case clientParseRequests() was blocked by a busy pic.connection
+ kick(); // in case parseRequests() was blocked by a busy pic.connection
}
/// Forward future client requests using the given server connection.
diff --git a/src/client_side.h b/src/client_side.h
index 9fe8463..dfb4d8e 100644
--- a/src/client_side.h
+++ b/src/client_side.h
@@ -85,7 +85,6 @@ public:
virtual void doneWithControlMsg();
/// Traffic parsing
- bool clientParseRequests();
void readNextRequest();
/// try to make progress on a transaction or read more I/O
@@ -373,6 +372,7 @@ private:
virtual bool connFinishedWithConn(int size);
virtual void checkLogging();
+ void parseRequests();
void clientAfterReadingRequests();
bool concurrentRequestQueueFilled() const;
diff --git a/src/tests/stub_client_side.cc b/src/tests/stub_client_side.cc
index d7efb0f..655ed83 100644
--- a/src/tests/stub_client_side.cc
+++ b/src/tests/stub_client_side.cc
@@ -14,7 +14,7 @@
#include "tests/STUB.h"
#include "client_side.h"
-bool ConnStateData::clientParseRequests() STUB_RETVAL(false)
+void ConnStateData::parseRequests() STUB
void ConnStateData::readNextRequest() STUB
bool ConnStateData::isOpen() const STUB_RETVAL(false)
void ConnStateData::kick() STUB

16
SPECS/squid.spec
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@ -2,7 +2,7 @@
Name: squid
Version: 4.15
Release: 6%{?dist}.1.alma.1
Release: 7%{?dist}.1.alma.1
Summary: The Squid proxy caching server
Epoch: 7
# See CREDITS for breakdown of non GPLv2+ code
@ -38,7 +38,11 @@ Patch206: squid-4.11-active-ftp.patch
Patch208: squid-4.11-convert-ipv4.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2006121
Patch209: squid-4.15-ftp-filename-extraction.patch
Patch210: 0001-Fix-incremental-parsing-of-chunked-quoted-extensions.patch
# https://bugzilla.redhat.com/show_bug.cgi?id=2076717
Patch210: squid-4.15-halfclosed.patch
# OL squid-4.15-6.0.1.module+el8.8.0+90059+985ac402
Patch211: 0001-Fix-incremental-parsing-of-chunked-quoted-extensions.patch
# Security fixes
# https://bugzilla.redhat.com/show_bug.cgi?id=1941506
@ -112,7 +116,8 @@ lookup program (dnsserver), a program for retrieving FTP data
%patch206 -p1 -b .active-ftp
%patch208 -p1 -b .convert-ipv4
%patch209 -p1 -b .ftp-fn-extraction
%patch210 -p1 -b .fix-incremental-parsing
%patch210 -p1 -b .halfclosed
%patch211 -p1 -b .fix-incremental-parsing
# Security patches
%patch300 -p1 -b .CVE-2021-28116
@ -336,10 +341,13 @@ fi
%changelog
* Thu Nov 09 2023 Andrew Lukoshko <alukoshko@almalinux.org> - 4.15-6.1
* Wed Nov 15 2023 Eduard Abdullin <eabdullin@almalinux.org> - 4.15-7.1
- CVE-2023-46846 RFC 9112: Improve HTTP chunked encoding compliance
- CVE-2023-46847 Fix stack buffer overflow when parsing Digest Authorization
* Wed Aug 16 2023 Luboš Uhliarik <luhliari@redhat.com> - 7:4.15-7
- Resolves: #2076717 - Crash with half_closed_client on
* Thu Dec 08 2022 Tomas Korbar <tkorbar@redhat.com> - 4.15-6
- Resolves: #2072988 - [RFE] Add the "IP_BIND_ADDRESS_NO_PORT"
flag to sockets created for outgoing connections in the squid source code.