packets/packet.h File Reference

Marks a packet as 'pending' (thread safe, called from ReadPacket) Gets called every time a packet gets put on the pending list. Uses a mutex lock (to avoid problems with threads). This may be called more than once per ReadPacket request.

See also:: ReadPacket

Definition at line 334 of file packet.c.

References ADD_PACKET_1, global_vars::AllocatedCount, DEBUGPATH, Globals, hlbr_mutex_lock(), hlbr_mutex_unlock(), LastPendingSlot, PACKET_STATUS_PENDING, PacketLockID, PacketMutex, global_vars::Packets, global_vars::PendingCount, packet_rec::Status, and TRUE.

Referenced by ReadPacketTCPDump(), and RebuildPacket().

int BlockPacket ( int PacketSlot )

Marks a packet as 'blocked' (thread safe). Blocked packets can't be processed until are unblocked. Usually they're blocked by session handling functions

See also:: RemountTCPStream

Definition at line 357 of file packet.c.

References Globals, hlbr_mutex_lock(), hlbr_mutex_unlock(), PACKET_STATUS_BLOCKED, PacketLockID, PacketMutex, global_vars::Packets, POP_PACKET_1, packet_rec::Status, and TRUE.

Referenced by AssignSessionTCP().

int GetEmptyPacket ( )

Definition at line 412 of file packet.c.

References DEBUG, DEBUGPATH, GET_PACKET_1, Globals, hlbr_mutex_lock(), LastFreeSlot, MAX_PACKETS, NULL, PACKET_STATUS_ALLOCATED, PACKET_STATUS_IDLE, PacketLockID, PacketMutex, global_vars::Packets, packet_rec::PacketSlot, packet_rec::SaveCount, and packet_rec::Status.

Referenced by ReadPacketTCPDump(), RebuildPacket(), and SendARP().

int GetInterfaceByName ( char * Name )

Definition at line 595 of file packet.c.

References DEBUGPATH, Globals, global_vars::Interfaces, interface_rec::Name, and global_vars::NumInterfaces.

Referenced by RouteBNSAddNode().

int GetPacketProtoByName ( char * Name )

Definition at line 64 of file packet.c.

References DEBUGPATH, PACKET_PROTO_ETHERNET, and PACKET_PROTO_NONE.

Referenced by ParseInterface().

int GetPacketRoleByName ( char * Name )

Definition at line 79 of file packet.c.

References DEBUGPATH, PACKET_ROLE_EXTERNAL, PACKET_ROLE_HONEY, PACKET_ROLE_INTERNAL, and PACKET_ROLE_NORMAL.

Referenced by ParseInterface().

int GetPacketTypeByName ( char * Name )

Definition at line 38 of file packet.c.

References DEBUGPATH, PACKET_TYPE_LINUX_RAW, PACKET_TYPE_NONE, PACKET_TYPE_OBSD_BPF, PACKET_TYPE_OSX_BPF, PACKET_TYPE_PCAP, PACKET_TYPE_SOLARIS_DLPI, and PACKET_TYPE_TCPDUMP.

Referenced by ParseInterface().

int OpenInterface ( int InterfaceID )

Definition at line 99 of file packet.c.

References DEBUGPATH, FALSE, Globals, global_vars::Interfaces, interface_rec::Name, OpenInterfaceLinuxRaw(), OpenInterfaceOBSDBPF(), OpenInterfaceOSXBPF(), OpenInterfaceSolarisDLPI(), OpenInterfaceTCPDump(), PACKET_TYPE_LINUX_RAW, PACKET_TYPE_OBSD_BPF, PACKET_TYPE_OSX_BPF, PACKET_TYPE_SOLARIS_DLPI, PACKET_TYPE_TCPDUMP, and interface_rec::Type.

Referenced by OpenInterfaces().

int OpenInterfaces ( )

Definition at line 140 of file packet.c.

References DEBUGPATH, FALSE, Globals, global_vars::NumInterfaces, OpenInterface(), and TRUE.

Referenced by main().

int PopFromPending ( )

Pops a packet off the pending queue Give the caller a packet off the pending queue (marked as PACKET_STATUS_PENDING

Definition at line 384 of file packet.c.

References DEBUGPATH, Globals, hlbr_mutex_lock(), hlbr_mutex_unlock(), MAX_PACKETS, PACKET_NONE, PACKET_STATUS_PENDING, PACKET_STATUS_PROCESSING, PacketLockID, PacketMutex, global_vars::Packets, global_vars::PendingCount, POP_PACKET_1, global_vars::ProcessingCount, and packet_rec::Status.

Referenced by MainLoopPoll(), and ProcessPacketThread().

int ReadPacket ( int InterfaceID )

Definition at line 156 of file packet.c.

References DEBUGPATH, FALSE, Globals, global_vars::Interfaces, PACKET_TYPE_LINUX_RAW, PACKET_TYPE_OBSD_BPF, PACKET_TYPE_OSX_BPF, PACKET_TYPE_SOLARIS_DLPI, PACKET_TYPE_TCPDUMP, ReadPacketLinuxRaw(), ReadPacketOBSDBPF(), ReadPacketOSXBPF(), ReadPacketSolarisDLPI(), ReadPacketTCPDump(), and interface_rec::Type.

Referenced by MainLoopPoll().

void ReturnEmptyPacket ( int PacketSlot )

int RuleIsActive	(	int	PacketSlot,
		int	RuleNum
	)			`[inline]`

Definition at line 575 of file packet.c.

References DEBUGPATH, GetBit(), Globals, global_vars::NumRules, global_vars::Packets, and packet_rec::RuleBits.

Referenced by PerformActions(), TestEthernetDst(), TestEthernetSrc(), TestEthernetType(), TestICMPCode(), TestICMPType(), TestIPCheck(), TestIPDst(), TestIPProto(), TestIPSrc(), TestIPTTL(), TestTCPContent(), TestTCPDst(), TestTCPDstOld(), TestTCPFlags(), TestTCPListContent(), TestTCPListNoCase(), TestTCPNoCase(), TestTCPPort(), TestTCPRegExp(), TestTCPSrc(), TestUDPContent(), TestUDPDst(), TestUDPNoCase(), TestUDPRegExp(), and TestUDPSrc().

int SetRuleInactive	(	int	PacketSlot,
		int	RuleNum
	)			`[inline]`

Definition at line 584 of file packet.c.

References DEBUGPATH, Globals, global_vars::NumRules, global_vars::Packets, packet_rec::RuleBits, SetBit(), and TRUE.

Referenced by TestEthernetDst(), TestEthernetSrc(), TestEthernetType(), TestICMPCode(), TestICMPType(), TestIPCheck(), TestIPProto(), TestTCPDstOld(), TestTCPPort(), TestTCPRegExp(), TestTCPSrc(), TestUDPDst(), and TestUDPRegExp().

int StartInterfaceThread ( int InterfaceID )

Definition at line 534 of file packet.c.

References DEBUGPATH, FALSE, Globals, global_vars::Interfaces, LoopThreadLinuxRaw(), LoopThreadOBSDBPF(), LoopThreadOSXBPF(), LoopThreadSolarisDLPI(), LoopThreadTCPDump(), PACKET_TYPE_LINUX_RAW, PACKET_TYPE_OBSD_BPF, PACKET_TYPE_OSX_BPF, PACKET_TYPE_SOLARIS_DLPI, PACKET_TYPE_TCPDUMP, TRUE, and interface_rec::Type.

Referenced by MainLoopThreaded().

int WritePacket ( int PacketSlot )

Generated on Sat Jul 7 23:33:11 2007 for HLBR by

1.5.2


Defines
#define	MAX_IDLE_PACKETS 150
#define	PACKET_TYPE_NONE 0
#define	PACKET_TYPE_LINUX_RAW 1
#define	PACKET_TYPE_PCAP 2
#define	PACKET_TYPE_OBSD_BPF 3
#define	PACKET_TYPE_OSX_BPF 4
#define	PACKET_TYPE_TCPDUMP 5
#define	PACKET_TYPE_SOLARIS_DLPI 6
#define	PACKET_PROTO_NONE 0
#define	PACKET_PROTO_IP 1
#define	PACKET_PROTO_ETHERNET 2
#define	MAX_KEY_LEN 128
#define	INTERFACE_NONE -1
#define	INTERFACE_BROADCAST 99
#define	PACKET_STATUS_IDLE 0
#define	PACKET_STATUS_PENDING 1
#define	PACKET_STATUS_SAVED 2
#define	PACKET_STATUS_ALLOCATED 3
#define	PACKET_STATUS_PROCESSING 4
#define	PACKET_STATUS_BLOCKED 5
#define	PACKET_ROLE_NORMAL 0
#define	PACKET_ROLE_EXTERNAL 1
#define	PACKET_ROLE_INTERNAL 2
#define	PACKET_ROLE_HONEY 3
#define	PACKET_NONE -1
Functions
int	GetPacketTypeByName (char *Name)
int	GetPacketProtoByName (char *Name)
int	GetPacketRoleByName (char *Name)
int	OpenInterface (int InterfaceID)
int	OpenInterfaces ()
int	ReadPacket (int InterfaceID)
int	WritePacket (int PacketSlot)
int	AddPacketToPending (int PacketSlot)
int	PopFromPending ()
int	GetEmptyPacket ()
void	ReturnEmptyPacket (int PacketSlot)
int	StartInterfaceThread (int InterfaceID)
int	RuleIsActive (int PacketSlot, int RuleNum)
int	SetRuleInactive (int PacketSlot, int RuleNum)
int	GetInterfaceByName (char *Name)
int	BlockPacket (int PacketSlot)