2 * Copyright (C) 1996-2016 The Squid Software Foundation and contributors
4 * Squid software is distributed under GPLv2+ license and includes
5 * contributions from numerous individuals and organizations.
6 * Please see the COPYING and CONTRIBUTORS files for details.
9 /* DEBUG: section 26 Secure Sockets Layer Proxy */
12 #include "acl/FilledChecklist.h"
13 #include "base/CbcPointer.h"
14 #include "CachePeer.h"
16 #include "client_side.h"
17 #include "client_side_request.h"
19 #include "comm/Connection.h"
20 #include "comm/ConnOpener.h"
21 #include "comm/Read.h"
22 #include "comm/Write.h"
23 #include "errorpage.h"
29 #include "http/Stream.h"
30 #include "HttpRequest.h"
31 #include "HttpStateFlags.h"
32 #include "ip/QosConfig.h"
35 #include "PeerSelectState.h"
36 #include "sbuf/SBuf.h"
37 #include "security/BlindPeerConnector.h"
38 #include "SquidConfig.h"
39 #include "SquidTime.h"
40 #include "StatCounters.h"
43 #include "ssl/ServerBump.h"
54 * TunnelStateData is the state engine performing the tasks for
55 * setup of a TCP tunnel from an existing open client FD to a server
56 * then shuffling binary data between the resulting FD pair.
59 * TODO 1: implement a read/write API on ConnStateData to send/receive blocks
60 * of pre-formatted data. Then we can use that as the client side of the tunnel
61 * instead of re-implementing it here and occasionally getting the ConnStateData
62 * read/write state wrong.
64 * TODO 2: then convert this into a AsyncJob, possibly a child of 'Server'
68 CBDATA_CLASS(TunnelStateData
);
71 TunnelStateData(ClientHttpRequest
*);
73 TunnelStateData(const TunnelStateData
&); // do not implement
74 TunnelStateData
&operator =(const TunnelStateData
&); // do not implement
77 static void ReadClient(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
);
78 static void ReadServer(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
);
79 static void WriteClientDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag flag
, int xerrno
, void *data
);
80 static void WriteServerDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag flag
, int xerrno
, void *data
);
82 /// Starts reading peer response to our CONNECT request.
83 void readConnectResponse();
85 /// Called when we may be done handling a CONNECT exchange with the peer.
86 void connectExchangeCheckpoint();
88 bool noConnections() const;
90 CbcPointer
<ClientHttpRequest
> http
;
91 HttpRequest::Pointer request
;
92 AccessLogEntryPointer al
;
93 Comm::ConnectionList serverDestinations
;
95 const char * getHost() const {
96 return (server
.conn
!= NULL
&& server
.conn
->getPeer() ? server
.conn
->getPeer()->host
: request
->url
.host());
99 /// Whether we are writing a CONNECT request to a peer.
100 bool waitingForConnectRequest() const { return connectReqWriting
; }
101 /// Whether we are reading a CONNECT response from a peer.
102 bool waitingForConnectResponse() const { return connectRespBuf
; }
103 /// Whether we are waiting for the CONNECT request/response exchange with the peer.
104 bool waitingForConnectExchange() const { return waitingForConnectRequest() || waitingForConnectResponse(); }
106 /// Whether the client sent a CONNECT request to us.
107 bool clientExpectsConnectResponse() const {
108 // If we are forcing a tunnel after receiving a client CONNECT, then we
109 // have already responded to that CONNECT before tunnel.cc started.
110 if (request
&& request
->flags
.forceTunnel
)
113 // We are bumping and we had already send "OK CONNECTED"
114 if (http
.valid() && http
->getConn() && http
->getConn()->serverBump() && http
->getConn()->serverBump()->step
> Ssl::bumpStep1
)
117 return !(request
!= NULL
&&
118 (request
->flags
.interceptTproxy
|| request
->flags
.intercepted
));
121 /// Sends "502 Bad Gateway" error response to the client,
122 /// if it is waiting for Squid CONNECT response, closing connections.
123 void informUserOfPeerError(const char *errMsg
, size_t);
129 Connection() : len (0), buf ((char *)xmalloc(SQUID_TCP_SO_RCVBUF
)), size_ptr(NULL
), delayedLoops(0),
130 readPending(NULL
), readPendingFunc(NULL
) {}
134 int bytesWanted(int lower
=0, int upper
= INT_MAX
) const;
135 void bytesIn(int const &);
138 void setDelayId(DelayId
const &);
141 void error(int const xerrno
);
142 int debugLevelForError(int const xerrno
) const;
144 void dataSent (size_t amount
);
145 /// writes 'b' buffer, setting the 'writer' member to 'callback'.
146 void write(const char *b
, int size
, AsyncCall::Pointer
&callback
, FREE
* free_func
);
149 AsyncCall::Pointer writer
; ///< pending Comm::Write callback
150 uint64_t *size_ptr
; /* pointer to size in an ConnStateData for logging */
152 Comm::ConnectionPointer conn
; ///< The currently connected connection.
153 uint8_t delayedLoops
; ///< how many times a read on this connection has been postponed.
155 // XXX: make these an AsyncCall when event API can handle them
156 TunnelStateData
*readPending
;
157 EVH
*readPendingFunc
;
166 Connection client
, server
;
167 int *status_ptr
; ///< pointer for logging HTTP status
168 LogTags
*logTag_ptr
; ///< pointer for logging Squid processing code
169 MemBuf
*connectRespBuf
; ///< accumulates peer CONNECT response when we need it
170 bool connectReqWriting
; ///< whether we are writing a CONNECT request to a peer
171 SBuf preReadClientData
;
172 SBuf preReadServerData
;
173 time_t started
; ///< when this tunnel was initiated.
175 void copyRead(Connection
&from
, IOCB
*completion
);
177 /// continue to set up connection to a peer, going async for SSL peers
178 void connectToPeer();
181 /// Gives Security::PeerConnector access to Answer in the TunnelStateData callback dialer.
182 class MyAnswerDialer
: public CallDialer
, public Security::PeerConnector::CbDialer
185 typedef void (TunnelStateData::*Method
)(Security::EncryptorAnswer
&);
187 MyAnswerDialer(Method method
, TunnelStateData
*tunnel
):
188 method_(method
), tunnel_(tunnel
), answer_() {}
191 virtual bool canDial(AsyncCall
&call
) { return tunnel_
.valid(); }
192 void dial(AsyncCall
&call
) { ((&(*tunnel_
))->*method_
)(answer_
); }
193 virtual void print(std::ostream
&os
) const {
194 os
<< '(' << tunnel_
.get() << ", " << answer_
<< ')';
197 /* Security::PeerConnector::CbDialer API */
198 virtual Security::EncryptorAnswer
&answer() { return answer_
; }
202 CbcPointer
<TunnelStateData
> tunnel_
;
203 Security::EncryptorAnswer answer_
;
206 /// callback handler after connection setup (including any encryption)
207 void connectedToPeer(Security::EncryptorAnswer
&answer
);
210 bool keepGoingAfterRead(size_t len
, Comm::Flag errcode
, int xerrno
, Connection
&from
, Connection
&to
);
211 void copy(size_t len
, Connection
&from
, Connection
&to
, IOCB
*);
212 void handleConnectResponse(const size_t chunkSize
);
213 void readServer(char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
);
214 void readClient(char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
);
215 void writeClientDone(char *buf
, size_t len
, Comm::Flag flag
, int xerrno
);
216 void writeServerDone(char *buf
, size_t len
, Comm::Flag flag
, int xerrno
);
218 static void ReadConnectResponseDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
);
219 void readConnectResponseDone(char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
);
220 void copyClientBytes();
221 void copyServerBytes();
224 static const char *const conn_established
= "HTTP/1.1 200 Connection established\r\n\r\n";
226 static CNCB tunnelConnectDone
;
227 static ERCB tunnelErrorComplete
;
228 static CLCB tunnelServerClosed
;
229 static CLCB tunnelClientClosed
;
230 static CTCB tunnelTimeout
;
231 static PSC tunnelPeerSelectComplete
;
232 static EVH tunnelDelayedClientRead
;
233 static EVH tunnelDelayedServerRead
;
234 static void tunnelConnected(const Comm::ConnectionPointer
&server
, void *);
235 static void tunnelRelayConnectRequest(const Comm::ConnectionPointer
&server
, void *);
238 tunnelServerClosed(const CommCloseCbParams
¶ms
)
240 TunnelStateData
*tunnelState
= (TunnelStateData
*)params
.data
;
241 debugs(26, 3, HERE
<< tunnelState
->server
.conn
);
242 tunnelState
->server
.conn
= NULL
;
243 tunnelState
->server
.writer
= NULL
;
245 if (tunnelState
->request
!= NULL
)
246 tunnelState
->request
->hier
.stopPeerClock(false);
248 if (tunnelState
->noConnections()) {
249 // ConnStateData pipeline should contain the CONNECT we are performing
250 // but it may be invalid already (bug 4392)
251 if (tunnelState
->http
.valid() && tunnelState
->http
->getConn()) {
252 auto ctx
= tunnelState
->http
->getConn()->pipeline
.front();
260 if (!tunnelState
->client
.writer
) {
261 tunnelState
->client
.conn
->close();
267 tunnelClientClosed(const CommCloseCbParams
¶ms
)
269 TunnelStateData
*tunnelState
= (TunnelStateData
*)params
.data
;
270 debugs(26, 3, HERE
<< tunnelState
->client
.conn
);
271 tunnelState
->client
.conn
= NULL
;
272 tunnelState
->client
.writer
= NULL
;
274 if (tunnelState
->noConnections()) {
275 // ConnStateData pipeline should contain the CONNECT we are performing
276 // but it may be invalid already (bug 4392)
277 if (tunnelState
->http
.valid() && tunnelState
->http
->getConn()) {
278 auto ctx
= tunnelState
->http
->getConn()->pipeline
.front();
286 if (!tunnelState
->server
.writer
) {
287 tunnelState
->server
.conn
->close();
292 TunnelStateData::TunnelStateData(ClientHttpRequest
*clientRequest
) :
293 connectRespBuf(NULL
),
294 connectReqWriting(false),
295 started(squid_curtime
)
297 debugs(26, 3, "TunnelStateData constructed this=" << this);
298 client
.readPendingFunc
= &tunnelDelayedClientRead
;
299 server
.readPendingFunc
= &tunnelDelayedServerRead
;
301 assert(clientRequest
);
302 url
= xstrdup(clientRequest
->uri
);
303 request
= clientRequest
->request
;
304 server
.size_ptr
= &clientRequest
->out
.size
;
305 client
.size_ptr
= &clientRequest
->al
->http
.clientRequestSz
.payloadData
;
306 status_ptr
= &clientRequest
->al
->http
.code
;
307 logTag_ptr
= &clientRequest
->logType
;
308 al
= clientRequest
->al
;
309 http
= clientRequest
;
311 client
.conn
= clientRequest
->getConn()->clientConnection
;
312 comm_add_close_handler(client
.conn
->fd
, tunnelClientClosed
, this);
314 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
315 CommTimeoutCbPtrFun(tunnelTimeout
, this));
316 commSetConnTimeout(client
.conn
, Config
.Timeout
.lifetime
, timeoutCall
);
319 TunnelStateData::~TunnelStateData()
321 debugs(26, 3, "TunnelStateData destructed this=" << this);
322 assert(noConnections());
324 serverDestinations
.clear();
325 delete connectRespBuf
;
328 TunnelStateData::Connection::~Connection()
331 eventDelete(readPendingFunc
, readPending
);
337 TunnelStateData::Connection::bytesWanted(int lowerbound
, int upperbound
) const
340 return delayId
.bytesWanted(lowerbound
, upperbound
);
348 TunnelStateData::Connection::bytesIn(int const &count
)
350 debugs(26, 3, HERE
<< "len=" << len
<< " + count=" << count
);
352 delayId
.bytesIn(count
);
359 TunnelStateData::Connection::debugLevelForError(int const xerrno
) const
363 if (xerrno
== ECONNRESET
)
368 if (ignoreErrno(xerrno
))
374 /* Read from server side and queue it for writing to the client */
376 TunnelStateData::ReadServer(const Comm::ConnectionPointer
&c
, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
)
378 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
379 assert(cbdataReferenceValid(tunnelState
));
380 debugs(26, 3, HERE
<< c
);
382 tunnelState
->readServer(buf
, len
, errcode
, xerrno
);
386 TunnelStateData::readServer(char *, size_t len
, Comm::Flag errcode
, int xerrno
)
388 debugs(26, 3, HERE
<< server
.conn
<< ", read " << len
<< " bytes, err=" << errcode
);
389 server
.delayedLoops
=0;
392 * Bail out early on Comm::ERR_CLOSING
393 * - close handlers will tidy up for us
396 if (errcode
== Comm::ERR_CLOSING
)
401 statCounter
.server
.all
.kbytes_in
+= len
;
402 statCounter
.server
.other
.kbytes_in
+= len
;
405 if (keepGoingAfterRead(len
, errcode
, xerrno
, server
, client
))
406 copy(len
, server
, client
, WriteClientDone
);
409 /// Called when we read [a part of] CONNECT response from the peer
411 TunnelStateData::readConnectResponseDone(char *, size_t len
, Comm::Flag errcode
, int xerrno
)
413 debugs(26, 3, server
.conn
<< ", read " << len
<< " bytes, err=" << errcode
);
414 assert(waitingForConnectResponse());
416 if (errcode
== Comm::ERR_CLOSING
)
420 connectRespBuf
->appended(len
);
422 statCounter
.server
.all
.kbytes_in
+= len
;
423 statCounter
.server
.other
.kbytes_in
+= len
;
426 if (keepGoingAfterRead(len
, errcode
, xerrno
, server
, client
))
427 handleConnectResponse(len
);
431 TunnelStateData::informUserOfPeerError(const char *errMsg
, const size_t sz
)
436 *logTag_ptr
= LOG_TCP_TUNNEL
;
438 if (!clientExpectsConnectResponse()) {
439 // closing the connection is the best we can do here
440 debugs(50, 3, server
.conn
<< " closing on error: " << errMsg
);
441 server
.conn
->close();
445 // if we have no reply suitable to relay, use 502 Bad Gateway
446 if (!sz
|| sz
> static_cast<size_t>(connectRespBuf
->contentSize())) {
447 ErrorState
*err
= new ErrorState(ERR_CONNECT_FAIL
, Http::scBadGateway
, request
.getRaw());
448 *status_ptr
= Http::scBadGateway
;
449 err
->callback
= tunnelErrorComplete
;
450 err
->callback_data
= this;
451 errorSend(http
->getConn()->clientConnection
, err
);
455 // if we need to send back the server response. write its headers to the client
457 memcpy(server
.buf
, connectRespBuf
->content(), server
.len
);
458 copy(server
.len
, server
, client
, TunnelStateData::WriteClientDone
);
459 // then close the server FD to prevent any relayed keep-alive causing CVE-2015-5400
460 server
.closeIfOpen();
463 /* Read from client side and queue it for writing to the server */
465 TunnelStateData::ReadConnectResponseDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
)
467 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
468 assert (cbdataReferenceValid (tunnelState
));
470 tunnelState
->readConnectResponseDone(buf
, len
, errcode
, xerrno
);
473 /// Parses [possibly incomplete] CONNECT response and reacts to it.
474 /// If the tunnel is being closed or more response data is needed, returns false.
475 /// Otherwise, the caller should handle the remaining read data, if any.
477 TunnelStateData::handleConnectResponse(const size_t chunkSize
)
479 assert(waitingForConnectResponse());
481 // Ideally, client and server should use MemBuf or better, but current code
482 // never accumulates more than one read when shoveling data (XXX) so it does
483 // not need to deal with MemBuf complexity. To keep it simple, we use a
484 // dedicated MemBuf for accumulating CONNECT responses. TODO: When shoveling
485 // is optimized, reuse server.buf for CONNEC response accumulation instead.
487 /* mimic the basic parts of HttpStateData::processReplyHeader() */
489 Http::StatusCode parseErr
= Http::scNone
;
490 const bool eof
= !chunkSize
;
491 connectRespBuf
->terminate(); // HttpMsg::parse requires terminated string
492 const bool parsed
= rep
.parse(connectRespBuf
->content(), connectRespBuf
->contentSize(), eof
, &parseErr
);
494 if (parseErr
> 0) { // unrecoverable parsing error
495 informUserOfPeerError("malformed CONNECT response from peer", 0);
503 if (!connectRespBuf
->hasSpace()) {
504 informUserOfPeerError("huge CONNECT response from peer", 0);
509 readConnectResponse();
513 // CONNECT response was successfully parsed
514 *status_ptr
= rep
.sline
.status();
516 // we need to relay the 401/407 responses when login=PASS(THRU)
517 const char *pwd
= server
.conn
->getPeer()->login
;
518 const bool relay
= pwd
&& (strcmp(pwd
, "PASS") == 0 || strcmp(pwd
, "PASSTHRU") == 0) &&
519 (*status_ptr
== Http::scProxyAuthenticationRequired
||
520 *status_ptr
== Http::scUnauthorized
);
522 // bail if we did not get an HTTP 200 (Connection Established) response
523 if (rep
.sline
.status() != Http::scOkay
) {
524 // if we ever decide to reuse the peer connection, we must extract the error response first
525 informUserOfPeerError("unsupported CONNECT response status code", (relay
? rep
.hdr_sz
: 0));
529 if (rep
.hdr_sz
< connectRespBuf
->contentSize()) {
530 // preserve bytes that the server already sent after the CONNECT response
531 server
.len
= connectRespBuf
->contentSize() - rep
.hdr_sz
;
532 memcpy(server
.buf
, connectRespBuf
->content()+rep
.hdr_sz
, server
.len
);
534 // reset; delay pools were using this field to throttle CONNECT response
538 delete connectRespBuf
;
539 connectRespBuf
= NULL
;
540 connectExchangeCheckpoint();
544 TunnelStateData::Connection::error(int const xerrno
)
546 debugs(50, debugLevelForError(xerrno
), HERE
<< conn
<< ": read/write failure: " << xstrerr(xerrno
));
548 if (!ignoreErrno(xerrno
))
552 /* Read from client side and queue it for writing to the server */
554 TunnelStateData::ReadClient(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag errcode
, int xerrno
, void *data
)
556 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
557 assert (cbdataReferenceValid (tunnelState
));
559 tunnelState
->readClient(buf
, len
, errcode
, xerrno
);
563 TunnelStateData::readClient(char *, size_t len
, Comm::Flag errcode
, int xerrno
)
565 debugs(26, 3, HERE
<< client
.conn
<< ", read " << len
<< " bytes, err=" << errcode
);
566 client
.delayedLoops
=0;
569 * Bail out early on Comm::ERR_CLOSING
570 * - close handlers will tidy up for us
573 if (errcode
== Comm::ERR_CLOSING
)
578 statCounter
.client_http
.kbytes_in
+= len
;
581 if (keepGoingAfterRead(len
, errcode
, xerrno
, client
, server
))
582 copy(len
, client
, server
, WriteServerDone
);
585 /// Updates state after reading from client or server.
586 /// Returns whether the caller should use the data just read.
588 TunnelStateData::keepGoingAfterRead(size_t len
, Comm::Flag errcode
, int xerrno
, Connection
&from
, Connection
&to
)
590 debugs(26, 3, HERE
<< "from={" << from
.conn
<< "}, to={" << to
.conn
<< "}");
592 /* I think this is to prevent free-while-in-a-callback behaviour
594 * from.conn->close() / to.conn->close() done here trigger close callbacks which may free TunnelStateData
596 const CbcPointer
<TunnelStateData
> safetyLock(this);
598 /* Bump the source connection read timeout on any activity */
599 if (Comm::IsConnOpen(from
.conn
)) {
600 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
601 CommTimeoutCbPtrFun(tunnelTimeout
, this));
602 commSetConnTimeout(from
.conn
, Config
.Timeout
.read
, timeoutCall
);
605 /* Bump the dest connection read timeout on any activity */
606 /* see Bug 3659: tunnels can be weird, with very long one-way transfers */
607 if (Comm::IsConnOpen(to
.conn
)) {
608 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
609 CommTimeoutCbPtrFun(tunnelTimeout
, this));
610 commSetConnTimeout(to
.conn
, Config
.Timeout
.read
, timeoutCall
);
615 else if (len
== 0 || !Comm::IsConnOpen(to
.conn
)) {
616 debugs(26, 3, HERE
<< "Nothing to write or client gone. Terminate the tunnel.");
619 /* Only close the remote end if we've finished queueing data to it */
620 if (from
.len
== 0 && Comm::IsConnOpen(to
.conn
) ) {
623 } else if (cbdataReferenceValid(this)) {
631 TunnelStateData::copy(size_t len
, Connection
&from
, Connection
&to
, IOCB
*completion
)
633 debugs(26, 3, HERE
<< "Schedule Write");
634 AsyncCall::Pointer call
= commCbCall(5,5, "TunnelBlindCopyWriteHandler",
635 CommIoCbPtrFun(completion
, this));
636 to
.write(from
.buf
, len
, call
, NULL
);
639 /* Writes data from the client buffer to the server side */
641 TunnelStateData::WriteServerDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag flag
, int xerrno
, void *data
)
643 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
644 assert (cbdataReferenceValid (tunnelState
));
645 tunnelState
->server
.writer
= NULL
;
647 tunnelState
->writeServerDone(buf
, len
, flag
, xerrno
);
651 TunnelStateData::writeServerDone(char *, size_t len
, Comm::Flag flag
, int xerrno
)
653 debugs(26, 3, HERE
<< server
.conn
<< ", " << len
<< " bytes written, flag=" << flag
);
656 if (flag
!= Comm::OK
) {
657 if (flag
!= Comm::ERR_CLOSING
) {
658 debugs(26, 4, HERE
<< "calling TunnelStateData::server.error(" << xerrno
<<")");
659 server
.error(xerrno
); // may call comm_close
666 debugs(26, 4, HERE
<< "No read input. Closing server connection.");
667 server
.conn
->close();
672 statCounter
.server
.all
.kbytes_out
+= len
;
673 statCounter
.server
.other
.kbytes_out
+= len
;
674 client
.dataSent(len
);
676 /* If the other end has closed, so should we */
677 if (!Comm::IsConnOpen(client
.conn
)) {
678 debugs(26, 4, HERE
<< "Client gone away. Shutting down server connection.");
679 server
.conn
->close();
683 const CbcPointer
<TunnelStateData
> safetyLock(this); /* ??? should be locked by the caller... */
685 if (cbdataReferenceValid(this))
689 /* Writes data from the server buffer to the client side */
691 TunnelStateData::WriteClientDone(const Comm::ConnectionPointer
&, char *buf
, size_t len
, Comm::Flag flag
, int xerrno
, void *data
)
693 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
694 assert (cbdataReferenceValid (tunnelState
));
695 tunnelState
->client
.writer
= NULL
;
697 tunnelState
->writeClientDone(buf
, len
, flag
, xerrno
);
701 TunnelStateData::Connection::dataSent(size_t amount
)
703 debugs(26, 3, HERE
<< "len=" << len
<< " - amount=" << amount
);
704 assert(amount
== (size_t)len
);
706 /* increment total object size */
713 TunnelStateData::Connection::write(const char *b
, int size
, AsyncCall::Pointer
&callback
, FREE
* free_func
)
716 Comm::Write(conn
, b
, size
, callback
, free_func
);
720 TunnelStateData::writeClientDone(char *, size_t len
, Comm::Flag flag
, int xerrno
)
722 debugs(26, 3, HERE
<< client
.conn
<< ", " << len
<< " bytes written, flag=" << flag
);
725 if (flag
!= Comm::OK
) {
726 if (flag
!= Comm::ERR_CLOSING
) {
727 debugs(26, 4, HERE
<< "Closing client connection due to comm flags.");
728 client
.error(xerrno
); // may call comm_close
735 debugs(26, 4, HERE
<< "Closing client connection due to 0 byte read.");
736 client
.conn
->close();
741 statCounter
.client_http
.kbytes_out
+= len
;
742 server
.dataSent(len
);
744 /* If the other end has closed, so should we */
745 if (!Comm::IsConnOpen(server
.conn
)) {
746 debugs(26, 4, HERE
<< "Server has gone away. Terminating client connection.");
747 client
.conn
->close();
751 CbcPointer
<TunnelStateData
> safetyLock(this); /* ??? should be locked by the caller... */
753 if (cbdataReferenceValid(this))
758 tunnelTimeout(const CommTimeoutCbParams
&io
)
760 TunnelStateData
*tunnelState
= static_cast<TunnelStateData
*>(io
.data
);
761 debugs(26, 3, HERE
<< io
.conn
);
762 /* Temporary lock to protect our own feets (comm_close -> tunnelClientClosed -> Free) */
763 CbcPointer
<TunnelStateData
> safetyLock(tunnelState
);
765 tunnelState
->client
.closeIfOpen();
766 tunnelState
->server
.closeIfOpen();
770 TunnelStateData::Connection::closeIfOpen()
772 if (Comm::IsConnOpen(conn
))
777 tunnelDelayedClientRead(void *data
)
782 TunnelStateData
*tunnel
= static_cast<TunnelStateData
*>(data
);
783 tunnel
->client
.readPending
= NULL
;
784 static uint64_t counter
=0;
785 debugs(26, 7, "Client read(2) delayed " << ++counter
<< " times");
786 tunnel
->copyRead(tunnel
->client
, TunnelStateData::ReadClient
);
790 tunnelDelayedServerRead(void *data
)
795 TunnelStateData
*tunnel
= static_cast<TunnelStateData
*>(data
);
796 tunnel
->server
.readPending
= NULL
;
797 static uint64_t counter
=0;
798 debugs(26, 7, "Server read(2) delayed " << ++counter
<< " times");
799 tunnel
->copyRead(tunnel
->server
, TunnelStateData::ReadServer
);
803 TunnelStateData::copyRead(Connection
&from
, IOCB
*completion
)
805 assert(from
.len
== 0);
806 // If only the minimum permitted read size is going to be attempted
807 // then we schedule an event to try again in a few I/O cycles.
808 // Allow at least 1 byte to be read every (0.3*10) seconds.
809 int bw
= from
.bytesWanted(1, SQUID_TCP_SO_RCVBUF
);
810 if (bw
== 1 && ++from
.delayedLoops
< 10) {
811 from
.readPending
= this;
812 eventAdd("tunnelDelayedServerRead", from
.readPendingFunc
, from
.readPending
, 0.3, true);
816 AsyncCall::Pointer call
= commCbCall(5,4, "TunnelBlindCopyReadHandler",
817 CommIoCbPtrFun(completion
, this));
818 comm_read(from
.conn
, from
.buf
, bw
, call
);
822 TunnelStateData::readConnectResponse()
824 assert(waitingForConnectResponse());
826 AsyncCall::Pointer call
= commCbCall(5,4, "readConnectResponseDone",
827 CommIoCbPtrFun(ReadConnectResponseDone
, this));
828 comm_read(server
.conn
, connectRespBuf
->space(),
829 server
.bytesWanted(1, connectRespBuf
->spaceSize()), call
);
833 TunnelStateData::copyClientBytes()
835 if (preReadClientData
.length()) {
836 size_t copyBytes
= preReadClientData
.length() > SQUID_TCP_SO_RCVBUF
? SQUID_TCP_SO_RCVBUF
: preReadClientData
.length();
837 memcpy(client
.buf
, preReadClientData
.rawContent(), copyBytes
);
838 preReadClientData
.consume(copyBytes
);
839 client
.bytesIn(copyBytes
);
840 if (keepGoingAfterRead(copyBytes
, Comm::OK
, 0, client
, server
))
841 copy(copyBytes
, client
, server
, TunnelStateData::WriteServerDone
);
843 copyRead(client
, ReadClient
);
847 TunnelStateData::copyServerBytes()
849 if (preReadServerData
.length()) {
850 size_t copyBytes
= preReadServerData
.length() > SQUID_TCP_SO_RCVBUF
? SQUID_TCP_SO_RCVBUF
: preReadServerData
.length();
851 memcpy(server
.buf
, preReadServerData
.rawContent(), copyBytes
);
852 preReadServerData
.consume(copyBytes
);
853 server
.bytesIn(copyBytes
);
854 if (keepGoingAfterRead(copyBytes
, Comm::OK
, 0, server
, client
))
855 copy(copyBytes
, server
, client
, TunnelStateData::WriteClientDone
);
857 copyRead(server
, ReadServer
);
861 * Set the HTTP status for this request and sets the read handlers for client
862 * and server side connections.
865 tunnelStartShoveling(TunnelStateData
*tunnelState
)
867 assert(!tunnelState
->waitingForConnectExchange());
868 *tunnelState
->status_ptr
= Http::scOkay
;
869 if (tunnelState
->logTag_ptr
)
870 *tunnelState
->logTag_ptr
= LOG_TCP_TUNNEL
;
871 if (cbdataReferenceValid(tunnelState
)) {
873 // Shovel any payload already pushed into reply buffer by the server response
874 if (!tunnelState
->server
.len
)
875 tunnelState
->copyServerBytes();
877 debugs(26, DBG_DATA
, "Tunnel server PUSH Payload: \n" << Raw("", tunnelState
->server
.buf
, tunnelState
->server
.len
) << "\n----------");
878 tunnelState
->copy(tunnelState
->server
.len
, tunnelState
->server
, tunnelState
->client
, TunnelStateData::WriteClientDone
);
881 if (tunnelState
->http
.valid() && tunnelState
->http
->getConn() && !tunnelState
->http
->getConn()->inBuf
.isEmpty()) {
882 SBuf
* const in
= &tunnelState
->http
->getConn()->inBuf
;
883 debugs(26, DBG_DATA
, "Tunnel client PUSH Payload: \n" << *in
<< "\n----------");
884 tunnelState
->preReadClientData
.append(*in
);
885 in
->consume(); // ConnStateData buffer accounting after the shuffle.
887 tunnelState
->copyClientBytes();
892 * All the pieces we need to write to client and/or server connection
894 * Call the tunnelStartShoveling to start the blind pump.
897 tunnelConnectedWriteDone(const Comm::ConnectionPointer
&conn
, char *, size_t, Comm::Flag flag
, int, void *data
)
899 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
900 debugs(26, 3, HERE
<< conn
<< ", flag=" << flag
);
901 tunnelState
->client
.writer
= NULL
;
903 if (flag
!= Comm::OK
) {
904 *tunnelState
->status_ptr
= Http::scInternalServerError
;
905 tunnelErrorComplete(conn
->fd
, data
, 0);
909 tunnelStartShoveling(tunnelState
);
912 /// Called when we are done writing CONNECT request to a peer.
914 tunnelConnectReqWriteDone(const Comm::ConnectionPointer
&conn
, char *, size_t, Comm::Flag flag
, int, void *data
)
916 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
917 debugs(26, 3, conn
<< ", flag=" << flag
);
918 tunnelState
->server
.writer
= NULL
;
919 assert(tunnelState
->waitingForConnectRequest());
921 if (flag
!= Comm::OK
) {
922 *tunnelState
->status_ptr
= Http::scInternalServerError
;
923 tunnelErrorComplete(conn
->fd
, data
, 0);
927 tunnelState
->connectReqWriting
= false;
928 tunnelState
->connectExchangeCheckpoint();
932 TunnelStateData::connectExchangeCheckpoint()
934 if (waitingForConnectResponse()) {
935 debugs(26, 5, "still reading CONNECT response on " << server
.conn
);
936 } else if (waitingForConnectRequest()) {
937 debugs(26, 5, "still writing CONNECT request on " << server
.conn
);
939 assert(!waitingForConnectExchange());
940 debugs(26, 3, "done with CONNECT exchange on " << server
.conn
);
941 tunnelConnected(server
.conn
, this);
946 * handle the write completion from a proxy request to an upstream origin
949 tunnelConnected(const Comm::ConnectionPointer
&server
, void *data
)
951 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
952 debugs(26, 3, HERE
<< server
<< ", tunnelState=" << tunnelState
);
954 if (!tunnelState
->clientExpectsConnectResponse())
955 tunnelStartShoveling(tunnelState
); // ssl-bumped connection, be quiet
957 AsyncCall::Pointer call
= commCbCall(5,5, "tunnelConnectedWriteDone",
958 CommIoCbPtrFun(tunnelConnectedWriteDone
, tunnelState
));
959 tunnelState
->client
.write(conn_established
, strlen(conn_established
), call
, NULL
);
964 tunnelErrorComplete(int fd
/*const Comm::ConnectionPointer &*/, void *data
, size_t)
966 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
967 debugs(26, 3, HERE
<< "FD " << fd
);
968 assert(tunnelState
!= NULL
);
969 /* temporary lock to save our own feets (comm_close -> tunnelClientClosed -> Free) */
970 CbcPointer
<TunnelStateData
> safetyLock(tunnelState
);
972 if (Comm::IsConnOpen(tunnelState
->client
.conn
))
973 tunnelState
->client
.conn
->close();
975 if (Comm::IsConnOpen(tunnelState
->server
.conn
))
976 tunnelState
->server
.conn
->close();
980 tunnelConnectDone(const Comm::ConnectionPointer
&conn
, Comm::Flag status
, int xerrno
, void *data
)
982 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
984 if (status
!= Comm::OK
) {
985 debugs(26, 4, HERE
<< conn
<< ", comm failure recovery.");
986 /* At this point only the TCP handshake has failed. no data has been passed.
987 * we are allowed to re-try the TCP-level connection to alternate IPs for CONNECT.
989 debugs(26, 4, "removing server 1 of " << tunnelState
->serverDestinations
.size() <<
990 " from destinations (" << tunnelState
->serverDestinations
[0] << ")");
991 tunnelState
->serverDestinations
.erase(tunnelState
->serverDestinations
.begin());
992 time_t fwdTimeout
= tunnelState
->started
+ Config
.Timeout
.forward
;
993 if (fwdTimeout
> squid_curtime
&& tunnelState
->serverDestinations
.size() > 0) {
994 // find remaining forward_timeout available for this attempt
995 fwdTimeout
-= squid_curtime
;
996 if (fwdTimeout
> Config
.Timeout
.connect
)
997 fwdTimeout
= Config
.Timeout
.connect
;
998 /* Try another IP of this destination host */
999 GetMarkingsToServer(tunnelState
->request
.getRaw(), *tunnelState
->serverDestinations
[0]);
1000 debugs(26, 4, HERE
<< "retry with : " << tunnelState
->serverDestinations
[0]);
1001 AsyncCall::Pointer call
= commCbCall(26,3, "tunnelConnectDone", CommConnectCbPtrFun(tunnelConnectDone
, tunnelState
));
1002 Comm::ConnOpener
*cs
= new Comm::ConnOpener(tunnelState
->serverDestinations
[0], call
, fwdTimeout
);
1003 cs
->setHost(tunnelState
->url
);
1004 AsyncJob::Start(cs
);
1006 debugs(26, 4, HERE
<< "terminate with error.");
1007 ErrorState
*err
= new ErrorState(ERR_CONNECT_FAIL
, Http::scServiceUnavailable
, tunnelState
->request
.getRaw());
1008 *tunnelState
->status_ptr
= Http::scServiceUnavailable
;
1009 err
->xerrno
= xerrno
;
1010 // on timeout is this still: err->xerrno = ETIMEDOUT;
1011 err
->port
= conn
->remote
.port();
1012 err
->callback
= tunnelErrorComplete
;
1013 err
->callback_data
= tunnelState
;
1014 errorSend(tunnelState
->client
.conn
, err
);
1015 if (tunnelState
->request
!= NULL
)
1016 tunnelState
->request
->hier
.stopPeerClock(false);
1022 /* no point using the delayIsNoDelay stuff since tunnel is nice and simple */
1023 if (conn
->getPeer() && conn
->getPeer()->options
.no_delay
)
1024 tunnelState
->server
.setDelayId(DelayId());
1027 tunnelState
->request
->hier
.note(conn
, tunnelState
->getHost());
1029 tunnelState
->server
.conn
= conn
;
1030 tunnelState
->request
->peer_host
= conn
->getPeer() ? conn
->getPeer()->host
: NULL
;
1031 comm_add_close_handler(conn
->fd
, tunnelServerClosed
, tunnelState
);
1033 debugs(26, 4, HERE
<< "determine post-connect handling pathway.");
1034 if (conn
->getPeer()) {
1035 tunnelState
->request
->peer_login
= conn
->getPeer()->login
;
1036 tunnelState
->request
->peer_domain
= conn
->getPeer()->domain
;
1037 tunnelState
->request
->flags
.auth_no_keytab
= conn
->getPeer()->options
.auth_no_keytab
;
1038 tunnelState
->request
->flags
.proxying
= !(conn
->getPeer()->options
.originserver
);
1040 tunnelState
->request
->peer_login
= NULL
;
1041 tunnelState
->request
->peer_domain
= NULL
;
1042 tunnelState
->request
->flags
.auth_no_keytab
= false;
1043 tunnelState
->request
->flags
.proxying
= false;
1046 if (tunnelState
->request
->flags
.proxying
)
1047 tunnelState
->connectToPeer();
1049 tunnelConnected(conn
, tunnelState
);
1052 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
1053 CommTimeoutCbPtrFun(tunnelTimeout
, tunnelState
));
1054 commSetConnTimeout(conn
, Config
.Timeout
.read
, timeoutCall
);
1058 tunnelStart(ClientHttpRequest
* http
)
1060 debugs(26, 3, HERE
);
1061 /* Create state structure. */
1062 TunnelStateData
*tunnelState
= NULL
;
1063 ErrorState
*err
= NULL
;
1064 HttpRequest
*request
= http
->request
;
1065 char *url
= http
->uri
;
1068 * client_addr.isNoAddr() indicates this is an "internal" request
1069 * from peer_digest.c, asn.c, netdb.c, etc and should always
1070 * be allowed. yuck, I know.
1073 if (Config
.accessList
.miss
&& !request
->client_addr
.isNoAddr()) {
1075 * Check if this host is allowed to fetch MISSES from us (miss_access)
1076 * default is to allow.
1078 ACLFilledChecklist
ch(Config
.accessList
.miss
, request
, NULL
);
1079 ch
.src_addr
= request
->client_addr
;
1080 ch
.my_addr
= request
->my_addr
;
1081 if (ch
.fastCheck() == ACCESS_DENIED
) {
1082 debugs(26, 4, HERE
<< "MISS access forbidden.");
1083 err
= new ErrorState(ERR_FORWARDING_DENIED
, Http::scForbidden
, request
);
1084 http
->al
->http
.code
= Http::scForbidden
;
1085 errorSend(http
->getConn()->clientConnection
, err
);
1090 debugs(26, 3, request
->method
<< ' ' << url
<< ' ' << request
->http_ver
);
1091 ++statCounter
.server
.all
.requests
;
1092 ++statCounter
.server
.other
.requests
;
1094 tunnelState
= new TunnelStateData(http
);
1096 //server.setDelayId called from tunnelConnectDone after server side connection established
1099 peerSelect(&(tunnelState
->serverDestinations
), request
, http
->al
,
1101 tunnelPeerSelectComplete
,
1106 TunnelStateData::connectToPeer()
1108 if (CachePeer
*p
= server
.conn
->getPeer()) {
1109 if (p
->secure
.encryptTransport
) {
1110 AsyncCall::Pointer callback
= asyncCall(5,4,
1111 "TunnelStateData::ConnectedToPeer",
1112 MyAnswerDialer(&TunnelStateData::connectedToPeer
, this));
1113 auto *connector
= new Security::BlindPeerConnector(request
, server
.conn
, callback
, al
);
1114 AsyncJob::Start(connector
); // will call our callback
1119 Security::EncryptorAnswer nil
;
1120 connectedToPeer(nil
);
1124 TunnelStateData::connectedToPeer(Security::EncryptorAnswer
&answer
)
1126 if (ErrorState
*error
= answer
.error
.get()) {
1127 *status_ptr
= error
->httpStatus
;
1128 error
->callback
= tunnelErrorComplete
;
1129 error
->callback_data
= this;
1130 errorSend(client
.conn
, error
);
1131 answer
.error
.clear(); // preserve error for errorSendComplete()
1135 tunnelRelayConnectRequest(server
.conn
, this);
1139 tunnelRelayConnectRequest(const Comm::ConnectionPointer
&srv
, void *data
)
1141 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
1142 assert(!tunnelState
->waitingForConnectExchange());
1143 HttpHeader
hdr_out(hoRequest
);
1144 HttpStateFlags flags
;
1145 debugs(26, 3, HERE
<< srv
<< ", tunnelState=" << tunnelState
);
1146 memset(&flags
, '\0', sizeof(flags
));
1147 flags
.proxying
= tunnelState
->request
->flags
.proxying
;
1150 mb
.appendf("CONNECT %s HTTP/1.1\r\n", tunnelState
->url
);
1151 HttpStateData::httpBuildRequestHeader(tunnelState
->request
.getRaw(),
1152 NULL
, /* StoreEntry */
1153 tunnelState
->al
, /* AccessLogEntry */
1156 hdr_out
.packInto(&mb
);
1158 mb
.append("\r\n", 2);
1160 debugs(11, 2, "Tunnel Server REQUEST: " << tunnelState
->server
.conn
<<
1161 ":\n----------\n" << mb
.buf
<< "\n----------");
1163 AsyncCall::Pointer writeCall
= commCbCall(5,5, "tunnelConnectReqWriteDone",
1164 CommIoCbPtrFun(tunnelConnectReqWriteDone
,
1167 tunnelState
->server
.write(mb
.buf
, mb
.size
, writeCall
, mb
.freeFunc());
1168 tunnelState
->connectReqWriting
= true;
1170 tunnelState
->connectRespBuf
= new MemBuf
;
1171 // SQUID_TCP_SO_RCVBUF: we should not accumulate more than regular I/O buffer
1172 // can hold since any CONNECT response leftovers have to fit into server.buf.
1173 // 2*SQUID_TCP_SO_RCVBUF: HttpMsg::parse() zero-terminates, which uses space.
1174 tunnelState
->connectRespBuf
->init(SQUID_TCP_SO_RCVBUF
, 2*SQUID_TCP_SO_RCVBUF
);
1175 tunnelState
->readConnectResponse();
1177 assert(tunnelState
->waitingForConnectExchange());
1179 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
1180 CommTimeoutCbPtrFun(tunnelTimeout
, tunnelState
));
1181 commSetConnTimeout(srv
, Config
.Timeout
.read
, timeoutCall
);
1184 static Comm::ConnectionPointer
1185 borrowPinnedConnection(HttpRequest
*request
, Comm::ConnectionPointer
&serverDestination
)
1187 // pinned_connection may become nil after a pconn race
1188 if (ConnStateData
*pinned_connection
= request
? request
->pinnedConnection() : nullptr) {
1189 Comm::ConnectionPointer serverConn
= pinned_connection
->borrowPinnedConnection(request
, serverDestination
->getPeer());
1197 tunnelPeerSelectComplete(Comm::ConnectionList
*peer_paths
, ErrorState
*err
, void *data
)
1199 TunnelStateData
*tunnelState
= (TunnelStateData
*)data
;
1202 if (peer_paths
== NULL
|| peer_paths
->size() < 1) {
1203 debugs(26, 3, HERE
<< "No paths found. Aborting CONNECT");
1207 if (!bail
&& tunnelState
->serverDestinations
[0]->peerType
== PINNED
) {
1208 Comm::ConnectionPointer serverConn
= borrowPinnedConnection(tunnelState
->request
.getRaw(), tunnelState
->serverDestinations
[0]);
1209 debugs(26,7, "pinned peer connection: " << serverConn
);
1210 if (Comm::IsConnOpen(serverConn
)) {
1211 tunnelConnectDone(serverConn
, Comm::OK
, 0, (void *)tunnelState
);
1219 err
= new ErrorState(ERR_CANNOT_FORWARD
, Http::scServiceUnavailable
, tunnelState
->request
.getRaw());
1221 *tunnelState
->status_ptr
= err
->httpStatus
;
1222 err
->callback
= tunnelErrorComplete
;
1223 err
->callback_data
= tunnelState
;
1224 errorSend(tunnelState
->client
.conn
, err
);
1229 GetMarkingsToServer(tunnelState
->request
.getRaw(), *tunnelState
->serverDestinations
[0]);
1231 if (tunnelState
->request
!= NULL
)
1232 tunnelState
->request
->hier
.startPeerClock();
1234 debugs(26, 3, HERE
<< "paths=" << peer_paths
->size() << ", p[0]={" << (*peer_paths
)[0] << "}, serverDest[0]={" <<
1235 tunnelState
->serverDestinations
[0] << "}");
1237 AsyncCall::Pointer call
= commCbCall(26,3, "tunnelConnectDone", CommConnectCbPtrFun(tunnelConnectDone
, tunnelState
));
1238 Comm::ConnOpener
*cs
= new Comm::ConnOpener(tunnelState
->serverDestinations
[0], call
, Config
.Timeout
.connect
);
1239 cs
->setHost(tunnelState
->url
);
1240 AsyncJob::Start(cs
);
1243 CBDATA_CLASS_INIT(TunnelStateData
);
1246 TunnelStateData::noConnections() const
1248 return !Comm::IsConnOpen(server
.conn
) && !Comm::IsConnOpen(client
.conn
);
1253 TunnelStateData::Connection::setDelayId(DelayId
const &newDelay
)
1262 switchToTunnel(HttpRequest
*request
, Comm::ConnectionPointer
&clientConn
, Comm::ConnectionPointer
&srvConn
)
1264 debugs(26,5, "Revert to tunnel FD " << clientConn
->fd
<< " with FD " << srvConn
->fd
);
1266 /* Create state structure. */
1267 ++statCounter
.server
.all
.requests
;
1268 ++statCounter
.server
.other
.requests
;
1270 auto conn
= request
->clientConnectionManager
.get();
1272 Http::StreamPointer context
= conn
->pipeline
.front();
1273 Must(context
&& context
->http
);
1275 debugs(26, 3, request
->method
<< " " << context
->http
->uri
<< " " << request
->http_ver
);
1277 TunnelStateData
*tunnelState
= new TunnelStateData(context
->http
);
1279 fd_table
[clientConn
->fd
].read_method
= &default_read_method
;
1280 fd_table
[clientConn
->fd
].write_method
= &default_write_method
;
1282 request
->hier
.note(srvConn
, tunnelState
->getHost());
1284 tunnelState
->server
.conn
= srvConn
;
1287 /* no point using the delayIsNoDelay stuff since tunnel is nice and simple */
1288 if (srvConn
->getPeer() && srvConn
->getPeer()->options
.no_delay
)
1289 tunnelState
->server
.setDelayId(DelayId::DelayClient(context
->http
));
1292 request
->peer_host
= srvConn
->getPeer() ? srvConn
->getPeer()->host
: nullptr;
1293 comm_add_close_handler(srvConn
->fd
, tunnelServerClosed
, tunnelState
);
1295 debugs(26, 4, "determine post-connect handling pathway.");
1296 if (srvConn
->getPeer()) {
1297 request
->peer_login
= srvConn
->getPeer()->login
;
1298 request
->peer_domain
= srvConn
->getPeer()->domain
;
1299 request
->flags
.auth_no_keytab
= srvConn
->getPeer()->options
.auth_no_keytab
;
1300 request
->flags
.proxying
= !(srvConn
->getPeer()->options
.originserver
);
1302 request
->peer_login
= nullptr;
1303 request
->peer_domain
= nullptr;
1304 request
->flags
.auth_no_keytab
= false;
1305 request
->flags
.proxying
= false;
1308 AsyncCall::Pointer timeoutCall
= commCbCall(5, 4, "tunnelTimeout",
1309 CommTimeoutCbPtrFun(tunnelTimeout
, tunnelState
));
1310 commSetConnTimeout(srvConn
, Config
.Timeout
.read
, timeoutCall
);
1311 fd_table
[srvConn
->fd
].read_method
= &default_read_method
;
1312 fd_table
[srvConn
->fd
].write_method
= &default_write_method
;
1314 auto ssl
= fd_table
[srvConn
->fd
].ssl
.get();
1316 BIO
*b
= SSL_get_rbio(ssl
);
1317 Ssl::ServerBio
*srvBio
= static_cast<Ssl::ServerBio
*>(b
->ptr
);
1318 tunnelState
->preReadServerData
= srvBio
->rBufData();
1319 tunnelStartShoveling(tunnelState
);
1321 #endif //USE_OPENSSL