Collaboration diagram for ICP:

Modules
	ICPv2 Internals

	ICPv3 Internals

Enumerations
enum	icp_opcode { enumBegin_ = 0 , ICP_INVALID = enumBegin_ , ICP_QUERY , ICP_HIT , ICP_MISS , ICP_ERR , ICP_SEND , ICP_SENDA , ICP_DATABEG , ICP_DATA , ICP_DATAEND , ICP_SECHO , ICP_DECHO , ICP_NOTIFY , ICP_INVALIDATE , ICP_DELETE , ICP_UNUSED15 , ICP_UNUSED16 , ICP_UNUSED17 , ICP_UNUSED18 , ICP_UNUSED19 , ICP_UNUSED20 , ICP_MISS_NOFETCH , ICP_DENIED , ICP_HIT_OBJ , ICP_END , enumEnd_ = ICP_END }

Functions
HttpRequest *	icpGetRequest (char *url, int reqnum, int fd, Ip::Address &from)

bool	icpAccessAllowed (Ip::Address &from, HttpRequest *icp_request)

void	icpCreateAndSend (icp_opcode, int flags, char const *url, int reqnum, int pad, int fd, const Ip::Address &from, AccessLogEntryPointer)

icp_opcode	icpGetCommonOpcode ()

void	icpDenyAccess (Ip::Address &from, char *url, int reqnum, int fd)

void	icpHandleIcpV3 (int, Ip::Address &, char *, int)

void	icpOpenPorts (void)

void	icpConnectionShutdown (void)

void	icpClosePorts (void)

int	icpSetCacheKey (const cache_key *key)

const cache_key *	icpGetCacheKey (const char *url, int reqnum)

Variables
PF	icpHandleUdp

Detailed Description

Enumeration Type Documentation

◆ icp_opcode

enum icp_opcode

Enumerator
enumBegin_
ICP_INVALID
ICP_QUERY
ICP_HIT
ICP_MISS
ICP_ERR
ICP_SEND
ICP_SENDA
ICP_DATABEG
ICP_DATA
ICP_DATAEND
ICP_SECHO
ICP_DECHO
ICP_NOTIFY
ICP_INVALIDATE
ICP_DELETE
ICP_UNUSED15
ICP_UNUSED16
ICP_UNUSED17
ICP_UNUSED18
ICP_UNUSED19
ICP_UNUSED20
ICP_MISS_NOFETCH
ICP_DENIED
ICP_HIT_OBJ
ICP_END
enumEnd_

Definition at line 13 of file icp_opcode.h.

Function Documentation

◆ icpAccessAllowed()

bool icpAccessAllowed	(	Ip::Address &	from,
		HttpRequest *	icp_request
	)

Definition at line 444 of file icp_v2.cc.

References SquidConfig::accessList, Acl::Answer::allowed(), Config, ACLChecklist::fastCheck(), SquidConfig::icp, ACLFilledChecklist::my_addr, Ip::Address::setNoAddr(), and ACLFilledChecklist::src_addr.

Referenced by doV2Query(), and doV3Query().

◆ icpClosePorts()

void icpClosePorts ( void )

Definition at line 804 of file icp_v2.cc.

References DBG_IMPORTANT, debugs, icpConnectionShutdown(), icpOutgoingConn, and Comm::Connection::local.

Referenced by mainReconfigureStart(), releaseServerSockets(), and SquidShutdown().

◆ icpConnectionShutdown()

void icpConnectionShutdown ( void )

icpConnectionShutdown only closes the 'in' socket if it is different than the 'out' socket.

Release the 'in' socket for lazy closure. in and out sockets may be sharing one same FD. This prevents this function from executing repeatedly.

Normally we only write to the outgoing ICP socket, but we also have a read handler there to catch messages sent to that specific interface. During shutdown, we must disable reading on the outgoing socket.

Definition at line 779 of file icp_v2.cc.

References assert, COMM_SELECT_READ, DBG_IMPORTANT, debugs, Comm::Connection::fd, icpIncomingConn, icpOutgoingConn, Comm::IsConnOpen(), Comm::Connection::local, and Comm::SetSelect().

Referenced by icpClosePorts(), and serverConnectionsClose().