This is automatically generated documentation. Edit after the "COMMENTS" heading; changes to the main body will be lost.

Element List

Basic Sources and Sinks

Name	Function	Drivers	Package
Discard	drops all packets	all	standard (core)
DiscardNoFree	drops all packets, but does not free any of them.	all	standard (core)
Idle	discards packets	all	standard (core)
InfiniteSource	generates packets whenever scheduled	all	standard (core)
RandomSource	generates random packets whenever scheduled	all	standard (core)
RatedSource	generates packets at specified rate	all	standard (core)
TimedSink	periodically pulls and drops a packet	all	standard (core)
TimedSource	periodically generates a packet	all	standard (core)

Basic Classification and Selection

Name	Function	Drivers	Package
CheckAverageLength	splits a flow of packets depending on their average length.	linuxmodule	unibo_qos
CheckLength	drops large packets	all	standard (core)
Classifier	classifies packets by contents	all	standard (core)
GetSSRC	splits packets _possibly_ containing an SSRC field (used by the RTP protocol): this is copied it inside the packet annotation field	all	unibo_qos
HashSwitch	classifies packets by hash of contents	all	standard (core)
RandomSample	samples packets with some probability	all	standard (core)
RandomSwitch	sends packets to random outputs	all	standard (core)
RoundRobinSwitch	sends packets to round-robin outputs	all	standard (core)
RTPClassifier	splits packets pertaining to an RTP flow from other BE traffic.	linuxmodule	unibo_qos
SplitFirst	splits the first N packets to output port 1, to port 0 otherwise.	linuxmodule	unibo_qos
StaticSwitch	sends packet stream to fixed output	all	standard (core)
StrideSwitch	sends packets to stride-scheduled outputs	all	standard (core)
Suppressor	passes packets unchanged, optionally dropping some input ports	all	standard (core)
Switch	sends packet stream to settable output	all	standard (core)

Basic Packet Transfer

Name	Function	Drivers	Package
Null	passes packets unchanged	all	standard (core)
Null1	copy of Null	all	standard (core)
PullNull	passes packets unchanged	all	standard (core)
PullTee	duplicates packets	all	standard (core)
PushNull	passes packets unchanged	all	standard (core)
Tee	duplicates packets	all	standard (core)

Counters

Name	Function	Drivers	Package
AverageCounter	measures historical packet count and rate	all	standard (core)
Counter	measures packet count and rate	all	standard (core)
CycleCountAccum	collects differences in cycle counters	linuxmodule	linuxmodule (core)
PerfCountAccum	collects differences in Pentium Pro performance metrics	linuxmodule	linuxmodule (core)
PerfCountInfo	turn on Pentium Pro performance metrics	linuxmodule	linuxmodule (core)
RoundTripCycleCount	measures round trip cycles on a push or pull path	linuxmodule	linuxmodule (core)
SetCycleCount	stores cycle count in annotation	linuxmodule	linuxmodule (core)
SetPerfCount	stores Pentium Pro performance metric in annotation	linuxmodule	linuxmodule (core)

Timestamps

Name	Function	Drivers	Package
SetTimestamp	store the time in the packet's timestamp annotation	all	standard (core)
SetTimestampDelta	replace packet timestamps with deltas	all	analysis (core)
StoreTimestamp	store packet timestamps in packet data	all	analysis (core)
TimeFilter	filter packets by timestamp	all	analysis (core)
TimeRange	monitor range of packet timestamps	all	analysis (core)
TimeSortedSched	merge sorted packet streams by timestamp	all	analysis (core)
TimestampAccum	collects differences in timestamps	userlevel	analysis (core)

Basic Packet Modification

Name	Function	Drivers	Package
Align	aligns packet data	all	standard (core)
RandomBitErrors	changes packet data with some probability	all	standard (core)
StoreData	changes packet data	all	standard (core)
Strip	strips bytes from front of packets	all	standard (core)
StripToNetworkHeader	strips everything preceding network header	all	standard (core)
Truncate	limit packet length.	all	standard (core)
Unstrip	unstrips bytes from front of packets	all	standard (core)

Packet Storage

Name	Function	Drivers	Package
FrontDropQueue	stores packets in drop-from-front FIFO queue	all	standard (core)
MixedQueue	stores packets in a FIFO/LIFO queue	all	standard (core)
NotifierQueue	stores packets in a FIFO queue	all	standard (core)
Queue	stores packets in a FIFO queue	all	standard (core)
SimpleQueue	stores packets in a FIFO queue	all	standard (core)

Active Queue Management

Name	Function	Drivers	Package
AdaptiveRED	drops packets according to Adaptive RED	all	aqm (core)
RED	drops packets according to RED	all	aqm (core)

Packet Scheduling

Name	Function	Drivers	Package
DRRSched	pulls from inputs with deficit round robin scheduling	all	standard (core)
PrioSched	pulls from priority-scheduled inputs	all	standard (core)
PullSwitch	forwards pull requests to settable input	all	standard (core)
RoundRobinSched	pulls from round-robin inputs	all	standard (core)
SimplePrioSched	pulls from priority-scheduled inputs	all	simple (core)
SimpleRoundRobinSched	pulls from round-robin inputs	all	simple (core)
StaticPullSwitch	forwards pull requests to fixed input	all	standard (core)
StrideSched	pulls from stride-scheduled inputs	all	standard (core)

Traffic Shaping

Name	Function	Drivers	Package
BandwidthMeter	classifies packet stream by arrival rate	all	standard (core)
BandwidthRatedSplitter	splits flow of packets at specified bandwidth rate	all	standard (core)
BandwidthRatedUnqueue	pull-to-push converter	all	standard (core)
BandwidthShaper	shapes traffic to maximum rate (bytes/s)	all	standard (core)
Block	drops packets with high rate	all	standard (core)
Burster	pull-to-push converter	all	standard (core)
CompareBlock	drops packets out of rate range	all	standard (core)
DelayShaper	shapes traffic to meet delay requirements	all	standard (core)
DelayUnqueue	delay inducing pull-to-push converter	all	standard (core)
LinkUnqueue	link emulator	all	standard (core)
Meter	classifies packet stream by rate (pkt/s)	all	standard (core)
RatedSplitter	splits flow of packets at specified rate	all	standard (core)
RatedUnqueue	pull-to-push converter	all	standard (core)
Shaper	shapes traffic to maximum rate (pkt/s)	all	standard (core)
Unqueue	pull-to-push converter	all	standard (core)
Unqueue2	pull-to-push converter	all	standard (core)

Information Elements

Name	Function	Drivers	Package
AddressInfo	specifies address information	all	standard (core)
AlignmentInfo	specifies alignment information	all	standard (core)
PortInfo	stores named TCP/UDP port information	all	standard (core)
ScheduleInfo	specifies scheduling parameters	all	standard (core)
ScheduleLinux	returns to Linux scheduler	linuxmodule	linuxmodule (core)
WirelessInfo	Tracks 802.11 configuration information (ssid, etc).	all	wifi (core)

Network Devices

Name	Function	Drivers	Package
FromDevice	reads packets from network device (Linux kernel)	linuxmodule	linuxmodule (core)
FromDevice.b	reads packets from network device (BSD kernel)	bsdmodule	bsdmodule (core)
FromDevice.u	reads packets from network device (user-level)	userlevel	userlevel (core)
FromSimDevice.u	reads packets from a simulator device	ns	ns (core)
FromUserDevice	Reads packets from the device's ring buffer and injects them into Click	linuxmodule	linuxmodule (core)
PollDevice	polls packets from network device (kernel)	linuxmodule	linuxmodule (core)
ToDevice	sends packets to network device (Linux kernel)	linuxmodule	linuxmodule (core)
ToDevice.b	sends packets to network device (BSD kernel)	bsdmodule	bsdmodule (core)
ToDevice.u	sends packets to network device (user-level)	userlevel	userlevel (core)
ToSimDevice.u	sends packets to simulated network device	ns	ns (core)
ToUserDevice	Writes packets from the click into a device's ring buffer, which can be then read by a userlevel application.	linuxmodule	linuxmodule (core)

Host and Socket Communication

Name	Function	Drivers	Package
FromHost	reads packets from Linux	linuxmodule	linuxmodule (core)
FromHost.u	interface to /dev/net/tun or ethertap (user-level)	userlevel	userlevel (core)
FromRawSocket	reads raw IP packets from safe raw socket (user-level)	userlevel	userlevel (core)
FromSocket	reads data from socket (user-level)	userlevel	userlevel (core)
IPFlowRawSockets	creates separate sockets for each TCP/UDP flow	userlevel	userlevel (core)
KernelFilter	block kernel from handling packets	userlevel	userlevel (core)
KernelTap	interface to /dev/tap or ethertap (user-level)	userlevel	userlevel (core)
KernelTun	interface to /dev/tun or ethertap (user-level)	userlevel	userlevel (core)
PPTPServer	Handles PPTP-over-TCP connections.	userlevel	ppp
RawSocket	transports raw IP packets via safe raw sockets (user-level)	userlevel	userlevel (core)
Socket	a socket transport (user-level)	userlevel	userlevel (core)
ToHost	sends packets to Linux	linuxmodule	linuxmodule (core)
ToHost.u	sends packets to Linux via Universal TUN/TAP device.	userlevel	userlevel (core)
ToHostSniffers	sends packets to Linux packet sniffers	linuxmodule	linuxmodule (core)
ToRawSocket	sends IP packets through a safe raw socket (user-level)	userlevel	userlevel (core)
ToSocket	sends data to socket (user-level)	userlevel	userlevel (core)

Ethernet

Name	Function	Drivers	Package
EnsureEther	ensures that IP packets are Ethernet encapsulated	all	ethernet (core)
EtherEncap	encapsulates packets in Ethernet header	all	ethernet (core)
EtherMirror	swaps Ethernet source and destination	all	ethernet (core)
EtherSwitch	learning, forwarding Ethernet switch	all	etherswitch (core)
HostEtherFilter	drops Ethernet packets sent to other machines	all	ethernet (core)
ListenEtherSwitch	learning, forwarding Ethernet switch with listen port	all	etherswitch (core)

ARP

Name	Function	Drivers	Package
ARPFaker	periodically generates an ARP reply	all	ethernet (core)
ARPPrint	pretty-prints ARP packets a la tcpdump	all	ethernet (core)
ARPQuerier	encapsulates IP packets in Ethernet headers found via ARP	all	ethernet (core)
ARPResponder	generates responses to ARP queries	all	ethernet (core)
CheckARPHeader	checks ARP header	all	ethernet (core)

IPv4

Name	Function	Drivers	Package
AnonymizeIPAddr	anonymizes top-level IP addresses in passing packets	all	analysis (core)
CheckIPHeader	checks IP header	all	ip (core)
CheckIPHeader2	checks IP header, no checksum	all	ip (core)
DecIPTTL	decrements IP time-to-live, drops dead packets	all	ip (core)
EraseIPPayload	erases IP packet payload	all	analysis (core)
FixIPSrc	sets IP source field if requested by annotation	all	ip (core)
GetIPAddress	sets destination IP address annotation from packet data	all	ip (core)
IPClassifier	classifies IP packets by contents	all	ip (core)
IPEncap	encapsulates packets in static IP header	all	ip (core)
IPFilter	filters IP packets by contents	all	ip (core)
IPFragmenter	fragments large IP packets	all	ip (core)
IPGWOptions	processes router IP options	all	ip (core)
IPInputCombo	input combo for IP routing	all	ip (core)
IPMirror	swaps IP source and destination	all	ip (core)
IPNameInfo	stores name information about IP packets	all	ip (core)
IPOutputCombo	output combo for IP routing	all	ip (core)
IPPrint	pretty-prints IP packets	all	ip (core)
IPReassembler	Reassembles fragmented IP packets	all	ip (core)
IPsecEncap	encapsulates packets in static IP header	all	ipsec (core)
MarkIPCE	sets IP packets' ECN field to Congestion Experienced	all	ip (core)
MarkIPHeader	sets IP header annotation	all	ip (core)
SetIPAddress	sets destination IP address annotations	all	ip (core)
SetIPChecksum	sets IP packets' checksums	all	ip (core)
SetIPDSCP	sets IP packets' DSCP fields	all	ip (core)
SetRandIPAddress	sets destination IP address annotations randomly	all	ip (core)
StoreIPAddress	stores IP address in packet	all	ip (core)
StripIPHeader	strips outermost IP header	all	ip (core)
UnstripIPHeader	restores outermost IP header	all	ip (core)

IPv4 Routing

Name	Function	Drivers	Package
DirectIPLookup	IP routing lookup using direct-indexed tables	userlevel, bsdmodule	ip (core)
IPRouteTable	IP routing table superclass	all	ip (core)
IPsecRouteTable	IP routing table superclass	all	ipsec (core)
LinearIPLookup	simple IP routing table	all	ip (core)
LinuxIPLookup	interface to Linux's routing table	userlevel	ip (core)
RadixIPLookup	IP lookup using a radix trie	all	ip (core)
RangeIPLookup	IP routing lookup through binary search in a very compact table	userlevel, bsdmodule	ip (core)
RIPSend	periodically generates specified RIP II packet	all	ip (core)
SortedIPLookup	simple IP routing table	all	ip (core)
StaticIPLookup	simple static IP routing table	all	ip (core)

ICMP

Name	Function	Drivers	Package
CheckICMPHeader	checks ICMP header on ICMP packets	all	icmp (core)
ICMPError	generates ICMP error packets	all	icmp (core)
ICMPPingEncap	encapsulates packets in ICMP ping headers	all	icmp (core)
ICMPPingResponder	responds to ICMP echo requests	all	icmp (core)
ICMPPingSource	periodically sends ICMP echo requests	all	icmp (core)

Network Address Translation

Name	Function	Drivers	Package
FTPPortMapper	manipulates IPRewriter for FTP	all	app (core)
FTPPortMapper6	Translates FTP control commands.	all	ip6_natpt
ICMPPingRewriter	rewrites ICMP echo requests and replies	all	icmp (core)
ICMPRewriter	rewrites ICMP packets based on IP rewriter mappings	all	icmp (core)
IPAddrPairRewriter	rewrites IP packets' addresses by address pair	all	ip (core)
IPAddrRewriter	rewrites IP packets' addresses	all	ip (core)
IPRewriter	rewrites TCP/UDP packets' addresses and ports	all	tcpudp (core)
IPRewriterPatterns	specifies shared IPRewriter patterns	all	ip (core)
RoundRobinIPMapper	round-robin mapper for IPRewriter	all	ip (core)
SourceIPHashMapper	Source IP Hash mapper for IPRewriter	all	ip (core)
TCPRewriter	rewrites TCP packets' addresses, ports, and sequence numbers	all	tcpudp (core)

TCP

Name	Function	Drivers	Package
CheckTCPHeader	checks TCP header on TCP/IP packets	all	tcpudp (core)
FastTCPFlows	creates packets flows with static TCP/IP/Ethernet headers	linuxmodule	linuxmodule (core)
RFC2507Comp	RFC2507 IPv4/TCP header compressor.	all	ip (core)
RFC2507Decomp	RFC2507 IPv4/TCP header decompressor.	all	ip (core)
SetTCPChecksum	sets TCP packets' checksums	all	tcpudp (core)
TCPIPSend	generates TCP/IP packets when requested	all	tcpudp (core)

UDP

Name	Function	Drivers	Package
CheckUDPHeader	checks UDP header on UDP/IP packets	all	tcpudp (core)
DynamicUDPIPEncap	encapsulates packets in dynamic UDP/IP headers	all	tcpudp (core)
FastUDPFlows	creates packets flows with static UDP/IP/Ethernet headers	linuxmodule	linuxmodule (core)
FastUDPSource	creates packets with static UDP/IP/Ethernet headers	linuxmodule	linuxmodule (core)
FastUDPSource.b	creates packets with static UDP/IP/Ethernet headers	bsdmodule	bsdmodule (core)
FastUDPSourceIP6	creates packets with static UDP/IP6/Ethernet headers	linuxmodule	linuxmodule (core)
SetUDPChecksum	sets UDP packets' checksums	all	tcpudp (core)
UDPIPEncap	encapsulates packets in static UDP/IP headers	all	tcpudp (core)

Trace Manipulation

Name	Function	Drivers	Package
FromCapDump	reads packets from a 'cap' output file	userlevel	analysis (core)
FromDAGDump	reads packets from a DAG/ERF file	userlevel	analysis (core)
FromDump	reads packets from a tcpdump file	userlevel, ns	userlevel (core)
FromIPSummaryDump	reads packets from an IP summary dump file	userlevel	analysis (core)
FromNetFlowSummaryDump	reads packets from a NetFlow summary file	userlevel	analysis (core)
FromNLANRDump	reads packets from an NLANR file	userlevel	analysis (core)
FromTcpdump	reads packets from an ASCII tcpdump output file	userlevel	analysis (core)
SimPacketAnalyzer	superclass for entering packet analyses in an ns2 trace	ns	ns (core)
ToDump	writes packets to a tcpdump file	userlevel, ns	userlevel (core)
ToIPFlowDumps	creates separate trace files for each TCP/UDP flow	userlevel	analysis (core)
ToIPSummaryDump	writes packet summary information to an ASCII file	userlevel	analysis (core)
ToSimTrace	adds trace entries to an ns2 trace file	ns	ns (core)

TCP/IP Measurement

Name	Function	Drivers	Package
AggregateIP	sets aggregate annotation based on IP packet field	userlevel	analysis (core)
AggregateIPAddrPair	sets aggregate annotation based on IP source/destination address pair	userlevel	analysis (core)
AggregateIPFlows	sets aggregate annotation based on flow	userlevel	analysis (core)
CalculateTCPLossEvents	analyzes TCP flows for loss events	userlevel	models
InferIPAddrColors	Infer a graph-coloring for IP addresses.	userlevel	models
IPAddrColorPaint	Sets paint annotations based on destination IP address color.	userlevel	models
IPRateMonitor	measures coming and going IP traffic rates	userlevel	ip (core)
MultiQ	calculates capacity information using EMG	userlevel	models
TCPCollector	collects information about TCP flows	userlevel	models
TCPMystery	analyzes TCP flows	userlevel	models
TestIPAddrColors	tests an IP address coloring	userlevel	models

Aggregates

Name	Function	Drivers	Package
AggregateCounter	counts packets per aggregate annotation	userlevel	analysis (core)
AggregateFilter	filters packets based on aggregate annotation	userlevel	analysis (core)
AggregateFirst	lets through first packet per aggregate annotation	userlevel	analysis (core)
AggregateLast	lets through last packet per aggregate annotation	userlevel	analysis (core)
AggregateLength	sets aggregate annotation based on packet length	userlevel	analysis (core)
AggregatePacketCounter	counts packets per packet number and aggregate annotation	userlevel	analysis (core)
AggregatePaint	sets aggregate annotation based on paint annotation	userlevel	analysis (core)

IPv6

Name	Function	Drivers	Package
AddressTranslator	translates IPv6/ICMPv6, TCP, and UDP packets' addresses and ports	all	ip6 (core)
CheckIP6Header		all	ip6 (core)
DecIP6HLIM		all	ip6 (core)
GetIP6Address		all	ip6 (core)
ICMP6Error		all	ip6 (core)
IP6Fragmenter		all	ip6 (core)
IP6Mirror	swaps IP6 source and destination	all	ip6 (core)
IP6NDAdvertiser		all	ethernet (core)
IP6NDSolicitor		all	ethernet (core)
IP6Print	pretty-prints IP6 packets	all	ip6 (core)
LookupIP6Route		all	ip6 (core)
MarkIP6Header		all	ip6 (core)
ProtocolTranslator46	translate IP/ICMP, TCP, and UDP packets between IPv4 and IPv6 protocols	all	ip6 (core)
ProtocolTranslator64	translate IP/ICMP, TCP, and UDP packets from the IPv6 to the IPv4 protocol	all	ip6 (core)
SetIP6Address		all	ip6 (core)
SetIP6DSCP	sets IP6 packets' DSCP fields	all	ip6 (core)

IPsec

Name	Function	Drivers	Package
IPsecAES	encrypt packet using DES-CBC	all	ipsec (core)
IPsecAuthHMACSHA1	verify SHA1 authentication digest.	all	ipsec (core)
IPsecAuthSHA1	verify SHA1 authentication digest.	all	ipsec (core)
IPsecDES	encrypt packet using DES-CBC	all	ipsec (core)
IPsecESPEncap	apply IPSec encapsulation	all	ipsec (core)
IPsecESPUnencap	removes IPSec encapsulation	all	ipsec (core)

CRCs

Name	Function	Drivers	Package
CheckCRC32	checks packet CRC32s	all	standard (core)
SetCRC32	calculates CRC32 and prepends to packet	all	standard (core)

Paint Annotations

Name	Function	Drivers	Package
CheckPaint	checks packets' paint annotation	all	standard (core)
Paint	sets packet paint annotations	all	standard (core)
PaintSwitch	sends packet stream to output chosen per-packet	all	standard (core)
PaintTee	duplicates packets with given paint annotation	all	standard (core)

Annotations

Name	Function	Drivers	Package
DropBroadcasts	drops link-level broadcast and multicast packets	all	standard (core)
SetAnnoByte	sets packet user annotations	all	standard (core)
SetPacketType	sets packet type annotation	all	standard (core)

Debugging

Name	Function	Drivers	Package
Error	always fails	all	standard (core)
Print	prints packet contents	all	standard (core)
PrintTXFeedback		all	wifi (core)
PrintWifi		all	wifi (core)

Control

Name	Function	Drivers	Package
ChangeUID	relinquish root privilege	userlevel	userlevel (core)
ChatterSocket	reports chatter messages to connected sockets	userlevel	userlevel (core)
ControlSocket	opens control sockets for other programs	userlevel	userlevel (core)
DriverManager	a Script that manages driver stop events	all	standard (core)
KernelHandlerProxy	proxies kernel module handlers at user level	userlevel	userlevel (core)
Message	prints a message on configuration	all	standard (core)
PokeHandlers	calls write handlers at specified times	all	standard (core)
ProgressBar	prints a progress bar to standard error	userlevel	userlevel (core)
QuitWatcher	stops router processing	all	standard (core)
RandomSeed	sets random seed	all	test (core)
Script	script a Click router configuration	all	standard (core)

Multithreaded Click

Name	Function	Drivers	Package
BalancedThreadSched	bin packing scheduler	linuxmodule	linuxmodule (core)
CPUQueue	stores packets in FIFO queues.	linuxmodule	linuxmodule (core)
CPUSwitch	classifies packets by cpu	linuxmodule	linuxmodule (core)
LookupIPRouteMP	simple static IP routing table	linuxmodule	ip (core)
MSQueue	stores packets in a FIFO queue	all	standard (core)
SpinlockAcquire	acquires spinlock	all	standard (core)
SpinlockInfo	specifies names of spinlocks	all	standard (core)
SpinlockRelease	releases spinlock	all	standard (core)
StaticThreadSched	specifies element and thread scheduling parameters	linuxmodule	linuxmodule (core)
ThreadMonitor	print out thread status	linuxmodule	linuxmodule (core)

Regression Tests

Name	Function	Drivers	Package
BigHashMapTest	runs regression tests for BigHashMap	all	test (core)
CheckPacket	check packets against a specification	all	test (core)
ComparePackets	compare packets in pairs	all	test (core)
ConfParseTest	runs regression tests for configuration parsing	all	test (core)
PacketTest	runs regression tests for Packet	all	test (core)
QueueThreadTest1	runs regression tests for Queue threading	userlevel	test (core)
QueueThreadTest2	runs regression tests for Queue threading	userlevel	test (core)
QueueYankTest	check packets against a specification	all	test (core)
SchedOrderTest	remembers scheduling order	all	test (core)
SortTest	runs regression tests for click_qsort	all	test (core)
UpstreamNotifier	passes packets unchanged. Has an upstream notifier. Genereally used for testing upstream notification.	all	test (core)
VectorTest	runs regression tests for Vector	all	test (core)

Grid

Name	Function	Drivers	Package
ACKResponder	Send positive acknowledgements to unicast data packets.	all	grid (core)
ACKResponder2	Send positive acknowledgements to unicast data packets.	all	grid (core)
ACKRetrySender	Resend packets until a positive acknowledgement is received.	all	grid (core)
ACKRetrySender2	Resend packets until a positive acknowledgement is received.	all	grid (core)
AiroInfo		userlevel	grid (core)
BottleneckMetric		all	grid (core)
CheckGridHeader		all	grid (core)
DSDVRouteTable	Run DSDV local routing protocol	all	grid (core)
DSRArpTable	Maintains an ARP table for DSR.	all	grid (core)
DSRRouteTable	A DSR protocol implementation	all	grid (core)
E2ELossMetric		all	grid (core)
EstimateRouterRegion		userlevel	grid (core)
ETX2Metric		all	grid (core)
ETXMetric		all	grid (core)
FilterByGridHops		all	grid (core)
FilterByRange		userlevel	grid (core)
FixDstLoc		userlevel	grid (core)
FixSrcLoc		all	grid (core)
FloodingLocQuerier	Sets Grid Destination location by running a flooding query protocol	all	grid (core)
GridEncap	Encapsulates packets in static Grid data encapsulation header (GRID_NBR_ENCAP), including ethernet, Grid, and grid data encap headers.	all	grid (core)
GridGatewayInfo	Manage grid node gateway info.	all	grid (core)
GridHeaderInfo	Provide information about Grid header version, header sizes, and offsets for the current router exectuable.	all	grid (core)
GridLocationInfo		userlevel	grid (core)
GridLocationInfo2		all	grid (core)
GridLogger	Log Grid-related events.	userlevel	grid (core)
GridProbeHandler	Handles Grid route probes, producing probe replies	userlevel	grid (core)
GridProbeReplyReceiver	Receives Grid route probe replies	userlevel	grid (core)
GridProbeSender	Produces a Grid route probe packet.	userlevel	grid (core)
GridRouteTable	Run DSDV-like local routing protocol	userlevel	grid (core)
GridTxError	Reports packet transmission error to Grid logging infrastructure	all	grid (core)
HopcountMetric		all	grid (core)
IncrementSeqNo		all	grid (core)
LinkStat	Track broadcast loss rates.	all	grid (core)
LinkTester		userlevel	grid (core)
LinkTestReceiver		userlevel	grid (core)
LinkTracker		userlevel, ns	grid (core)
LIRMetric		all	grid (core)
LocationTable		userlevel	grid (core)
LocFromFile		userlevel	grid (core)
LocQueryResponder	generates responses to Grid Location queries	all	grid (core)
LookupGeographicGridRoute		userlevel	grid (core)
LookupLocalGridRoute		all	grid (core)
MovementSimulator		userlevel	grid (core)
PacketLogger	Log packets for later dumping/analysis.	all	grid (core)
PacketLogger2	Log packets for later dumping/analysis.	all	grid (core)
PEP	runs the Grid Position Estimation Protocol	userlevel	grid (core)
PingPong		all	grid (core)
PrintGrid		all	grid (core)
RadioSim	simulates reachability and broadcast in an 802.11-like radio network	userlevel	grid (core)
SendGridHello		userlevel	grid (core)
SendGridLRHello		userlevel	grid (core)
SetGridChecksum		all	grid (core)
SimpleLocQuerier	Sets Grid destination location by looking in a static table	userlevel	grid (core)
ThresholdMetric		all	grid (core)
UpdateGridRoutes	Run DSDV-like local routing protocol.	userlevel	grid (core)
YarvisMetric		all	grid (core)

Wifi

Name	Function	Drivers	Package
ARPTable	Tracks IP -> Ethernet mappings for other elements.	all	wifi (core)
AssociationRequester	Sends 802.11 association requests when poked.	all	wifi (core)
AssociationResponder	Respond to 802.11 association requests.	all	wifi (core)
AthdescDecap	Pulls the click_wifi_athdesc header from a packet and stores it in Packet::anno()	all	wifi (core)
AthdescEncap	Pushes the click_wifi_radiotap header on a packet based on information in Packet::anno()	all	wifi (core)
AutoRateFallback	ARF wireless bit-rate selection algorithm	all	wifi (core)
AvailableRates	Tracks bit-rate capabilities of other stations.	all	wifi (core)
BeaconScanner	Listens for 802.11 beacons and sends probe requests.	all	wifi (core)
BeaconSource	Send 802.11 beacons.	all	wifi (core)
BeaconTracker	Tracks beacon from an Access Point	all	wifi (core)
EtherCount	Track each ethernet source.	all	wifi (core)
ExtraDecap	Pulls the click_wifi_extra header from a packet and stores it in Packet::anno()	all	wifi (core)
ExtraEncap	Pushes the click_wifi