FwdState.cc File Reference

#include "squid.h"
#include "AccessLogEntry.h"
#include "acl/Address.h"
#include "acl/FilledChecklist.h"
#include "acl/Gadgets.h"
#include "anyp/PortCfg.h"
#include "base/AsyncCallbacks.h"
#include "base/AsyncCbdataCalls.h"
#include "CacheManager.h"
#include "CachePeer.h"
#include "client_side.h"
#include "clients/forward.h"
#include "clients/HttpTunneler.h"
#include "clients/WhoisGateway.h"
#include "comm/Connection.h"
#include "comm/ConnOpener.h"
#include "comm/Loops.h"
#include "CommCalls.h"
#include "errorpage.h"
#include "event.h"
#include "fd.h"
#include "fde.h"
#include "FwdState.h"
#include "globals.h"
#include "HappyConnOpener.h"
#include "hier_code.h"
#include "http.h"
#include "http/Stream.h"
#include "HttpReply.h"
#include "HttpRequest.h"
#include "icmp/net_db.h"
#include "internal.h"
#include "ip/Intercept.h"
#include "ip/NfMarkConfig.h"
#include "ip/QosConfig.h"
#include "ip/tools.h"
#include "MemObject.h"
#include "mgr/Registration.h"
#include "neighbors.h"
#include "pconn.h"
#include "PeerPoolMgr.h"
#include "ResolvedPeers.h"
#include "security/BlindPeerConnector.h"
#include "SquidConfig.h"
#include "ssl/PeekingPeerConnector.h"
#include "Store.h"
#include "StoreClient.h"
#include "urn.h"
#include "ssl/cert_validate_message.h"
#include "ssl/Config.h"
#include "ssl/helper.h"
#include "ssl/ServerBump.h"
#include "ssl/support.h"
#include <cerrno>

Go to the source code of this file.

Macros
#define	MAX_FWD_STATS_IDX   9

Functions
static time_t	diffOrZero (const time_t larger, const time_t smaller)
static void	fwdServerClosedWrapper (const CommCloseCbParams &params)
static void	fwdStats (StoreEntry *s)
tos_t	aclMapTOS (acl_tos *head, ACLChecklist *ch)
	Checks for a TOS value to apply depending on the ACL. More...
Ip::NfMarkConfig	aclFindNfMarkConfig (acl_nfmark *head, ACLChecklist *ch)
	Checks for a netfilter mark value to apply depending on the ACL. More...
void	getOutgoingAddress (HttpRequest *request, const Comm::ConnectionPointer &conn)
static tos_t	GetTosToServer (HttpRequest *request, Comm::Connection &conn)
static nfmark_t	GetNfmarkToServer (HttpRequest *request, Comm::Connection &conn)
void	GetMarkingsToServer (HttpRequest *request, Comm::Connection &conn)
void	ResetMarkingsToServer (HttpRequest *request, Comm::Connection &conn)

Variables
static CLCB	fwdServerClosedWrapper
static OBJH	fwdStats
static int	FwdReplyCodes [MAX_FWD_STATS_IDX+1][Http::scInvalidHeader+1]
PconnPool *	fwdPconnPool = new PconnPool("server-peers", nullptr)
	a collection of previously used persistent Squid-to-peer HTTP(S) connections More...

Macro Definition Documentation

MAX_FWD_STATS_IDX

#define MAX_FWD_STATS_IDX   9

Definition at line 75 of file FwdState.cc.

Function Documentation

aclFindNfMarkConfig()

Ip::NfMarkConfig aclFindNfMarkConfig	(	acl_nfmark *	head,
		ACLChecklist *	ch
	)

Definition at line 1470 of file FwdState.cc.

References Acl::Answer::allowed(), ACLChecklist::fastCheck(), head, and squidaio_request_t::next.

Referenced by ClientHttpRequest::doCallouts(), and GetNfmarkToServer().

aclMapTOS()

tos_t aclMapTOS	(	acl_tos *	head,
		ACLChecklist *	ch
	)

Definition at line 1458 of file FwdState.cc.

References Acl::Answer::allowed(), ACLChecklist::fastCheck(), head, and squidaio_request_t::next.

Referenced by ClientHttpRequest::doCallouts(), and GetTosToServer().

diffOrZero()

static time_t diffOrZero ( const time_t  larger, const time_t  smaller  )

inlinestatic

subtracts time_t values, returning zero if smaller exceeds the larger value time_t might be unsigned so we need to be careful when subtracting times...

Definition at line 416 of file FwdState.cc.

Referenced by FwdState::ForwardTimeout().

fwdServerClosedWrapper()

static void fwdServerClosedWrapper ( const CommCloseCbParams &  params )

static

Definition at line 675 of file FwdState.cc.

References CommCommonCbParams::data, and FwdState::serverClosed().

fwdStats()

static void fwdStats ( StoreEntry *  s )

static

Definition at line 1355 of file FwdState.cc.

References FwdReplyCodes, int, MAX_FWD_STATS_IDX, Http::scInvalidHeader, and storeAppendPrintf().

GetMarkingsToServer()

void GetMarkingsToServer	(	HttpRequest *	request,
		Comm::Connection &	conn
	)

Sets initial TOS value and Netfilter for the future outgoing connection. Updates the given Connection object, not the future transport connection.

Definition at line 1560 of file FwdState.cc.

References debugs, GetNfmarkToServer(), GetTosToServer(), Comm::Connection::local, Comm::Connection::nfmark, and Comm::Connection::tos.

Referenced by HappyConnOpener::openFreshConnection(), PeerPoolMgr::openNewConnection(), and ResetMarkingsToServer().

GetNfmarkToServer()

static nfmark_t GetNfmarkToServer ( HttpRequest *  request, Comm::Connection &  conn  )

static

Returns

the Netfilter mark that should be set on the to-peer connection

Definition at line 1547 of file FwdState.cc.

References aclFindNfMarkConfig(), ACLFilledChecklist::dst_addr, ACLFilledChecklist::dst_peer_name, Comm::Connection::getPeer(), CachePeer::name, Comm::Connection::remote, and Ip::Qos::TheConfig.

Referenced by GetMarkingsToServer().

getOutgoingAddress()

void getOutgoingAddress	(	HttpRequest *	request,
		const Comm::ConnectionPointer &	conn
	)

Definition at line 1481 of file FwdState.cc.

References SquidConfig::accessList, Acl::Answer::allowed(), HttpRequest::client_addr, COMM_DOBIND, COMM_TRANSPARENT, Config, ACLFilledChecklist::dst_addr, ACLFilledChecklist::dst_peer_name, ACLChecklist::fastCheck(), HttpRequest::flags, HttpRequest::indirect_client_addr, Acl::Address::next, SquidConfig::onoff, SquidConfig::outgoing_address, RequestFlags::spoofClientIp, and SquidConfig::tproxy_uses_indirect_client.

Referenced by Adaptation::Icap::Xaction::dnsLookupDone(), PeerSelector::handlePath(), PeerPoolMgr::openNewConnection(), and peerProbeConnect().

GetTosToServer()

static tos_t GetTosToServer ( HttpRequest *  request, Comm::Connection &  conn  )

static

Returns

the TOS value that should be set on the to-peer connection

Definition at line 1534 of file FwdState.cc.

References aclMapTOS(), ACLFilledChecklist::dst_addr, ACLFilledChecklist::dst_peer_name, Comm::Connection::getPeer(), CachePeer::name, Comm::Connection::remote, and Ip::Qos::TheConfig.

Referenced by GetMarkingsToServer().

ResetMarkingsToServer()

void ResetMarkingsToServer	(	HttpRequest *	,
		Comm::Connection &
	)

Recomputes and applies TOS value and Netfilter to the outgoing connection. Updates both the given Connection object and the transport connection.

Definition at line 1569 of file FwdState.cc.

References GetMarkingsToServer(), Comm::Connection::nfmark, Ip::Qos::setSockNfmark(), Ip::Qos::setSockTos(), and Comm::Connection::tos.

Referenced by TunnelStateData::connectDone(), and FwdState::syncWithServerConn().

Variable Documentation

fwdPconnPool

PconnPool* fwdPconnPool = new PconnPool("server-peers", nullptr)

Definition at line 78 of file FwdState.cc.

Referenced by FwdState::closePendingConnection(), FwdState::closeServerConnection(), Http::Tunneler::countFailingConnection(), Security::PeerConnector::countFailingConnection(), HttpStateData::processReplyBody(), HappyConnOpener::reuseOldConnection(), and FwdState::serverClosed().

FwdReplyCodes

int FwdReplyCodes[MAX_FWD_STATS_IDX+1][Http::scInvalidHeader+1]

static

Definition at line 76 of file FwdState.cc.

Referenced by fwdStats(), and FwdState::logReplyStatus().

fwdServerClosedWrapper

CLCB fwdServerClosedWrapper

static

Definition at line 71 of file FwdState.cc.

Referenced by FwdState::syncWithServerConn().

fwdStats

OBJH fwdStats

static

Definition at line 73 of file FwdState.cc.

Referenced by FwdState::RegisterWithCacheManager().