#include "suricata.h"
#include "flow.h"
#include "stream-tcp-private.h"
#include "util-exception-policy.h"

Include dependency graph for stream-tcp-reassemble.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	TcpReassemblyThreadCtx_

Macros
#define	OS_POLICY_DEFAULT OS_POLICY_BSD

Typedefs
typedef struct TcpReassemblyThreadCtx_	TcpReassemblyThreadCtx

Enumerations
enum	{ OS_POLICY_NONE = 1, OS_POLICY_BSD, OS_POLICY_BSD_RIGHT, OS_POLICY_OLD_LINUX, OS_POLICY_LINUX, OS_POLICY_OLD_SOLARIS, OS_POLICY_SOLARIS, OS_POLICY_HPUX10, OS_POLICY_HPUX11, OS_POLICY_IRIX, OS_POLICY_MACOS, OS_POLICY_WINDOWS, OS_POLICY_VISTA, OS_POLICY_WINDOWS2K3, OS_POLICY_FIRST, OS_POLICY_LAST }

enum	StreamUpdateDir { UPDATE_DIR_NONE = 0, UPDATE_DIR_PACKET, UPDATE_DIR_OPPOSING, UPDATE_DIR_BOTH }

Functions
void	StreamTcpReassembleInitMemuse (void)

int	StreamTcpReassembleHandleSegment (ThreadVars , TcpReassemblyThreadCtx , TcpSession , TcpStream , Packet *)

int	StreamTcpReassembleInit (bool)

void	StreamTcpReassembleFree (bool)

void *	StreamTcpReassembleRealloc (void *optr, size_t orig_size, size_t size)

void	StreamTcpReassembleRegisterTests (void)
	The Function Register the Unit tests to test the reassembly engine for various OS policies. More...

TcpReassemblyThreadCtx *	StreamTcpReassembleInitThreadCtx (ThreadVars *tv)

void	StreamTcpReassembleFreeThreadCtx (TcpReassemblyThreadCtx *)

int	StreamTcpReassembleAppLayer (ThreadVars tv, TcpReassemblyThreadCtx ra_ctx, TcpSession ssn, TcpStream stream, Packet *p, enum StreamUpdateDir dir)
	Update the stream reassembly upon receiving a packet. More...

void	StreamTcpCreateTestPacket (uint8_t *, uint8_t, uint8_t, uint8_t)
	The Function to create the packet with given payload, which is used to test the reassembly of the engine. More...

void	StreamTcpSetSessionNoReassemblyFlag (TcpSession *, char)
	disable reassembly More...

void	StreamTcpSetSessionBypassFlag (TcpSession *)
	enable bypass More...

void	StreamTcpSetDisableRawReassemblyFlag (TcpSession *, char)
	Set the No reassembly flag for the given direction in given TCP session. More...

void	StreamTcpSetOSPolicy (TcpStream , Packet )
	Function to set the OS policy for the given stream based on the destination of the received packet. More...

int	StreamTcpReassembleHandleSegmentHandleData (ThreadVars tv, TcpReassemblyThreadCtx ra_ctx, TcpSession ssn, TcpStream stream, Packet *p)
	Insert a packets TCP data into the stream reassembly engine. More...

int	StreamTcpReassembleInsertSegment (ThreadVars , TcpReassemblyThreadCtx , TcpStream , TcpSegment , Packet , uint8_t pkt_data, uint16_t pkt_datalen)

TcpSegment *	StreamTcpGetSegment (ThreadVars , TcpReassemblyThreadCtx )
	get a segment from the pool More...

void	StreamTcpReturnStreamSegments (TcpStream *)
	return all segments in this stream into the pool(s) More...

void	StreamTcpSegmentReturntoPool (TcpSegment *)
	Function to return the segment back to the pool. More...

void	StreamTcpReassembleTriggerRawReassembly (TcpSession *, int direction)
	Trigger RAW stream reassembly. More...

void	StreamTcpPruneSession (Flow *, uint8_t)
	Remove idle TcpSegments from TcpSession. More...

int	StreamTcpReassembleDepthReached (Packet *p)
	check if stream in pkt direction has depth reached More...

void	StreamTcpReassembleIncrMemuse (uint64_t size)
	Function to Increment the memory usage counter for the TCP reassembly segments. More...

void	StreamTcpReassembleDecrMemuse (uint64_t size)
	Function to Decrease the memory usage counter for the TCP reassembly segments. More...

int	StreamTcpReassembleSetMemcap (uint64_t size)
	Update memcap value. More...

uint64_t	StreamTcpReassembleGetMemcap (void)
	Return memcap value. More...

int	StreamTcpReassembleCheckMemcap (uint64_t size)
	Function to Check the reassembly memory usage counter against the allowed max memory usage for TCP segments. More...

uint64_t	StreamTcpReassembleMemuseGlobalCounter (void)

void	StreamTcpDisableAppLayer (Flow *f)

int	StreamTcpAppLayerIsDisabled (Flow *f)

bool	StreamReassembleRawHasDataReady (TcpSession ssn, Packet p)
	does the stream engine have data to inspect? More...

void	StreamTcpReassemblySetMinInspectDepth (TcpSession *ssn, int direction, uint32_t depth)

bool	IsTcpSessionDumpingEnabled (void)

void	EnableTcpSessionDumping (void)

uint32_t	StreamDataAvailableForProtoDetect (TcpStream *stream)

Detailed Description

Author: Victor Julien victo.nosp@m.r@in.nosp@m.linia.nosp@m.c.ne.nosp@m.t; Gurvinder Singh gurvi.nosp@m.nder.nosp@m.singh.nosp@m.dahi.nosp@m.ya@gm.nosp@m.ail..nosp@m.com

Definition in file stream-tcp-reassemble.h.

Macro Definition Documentation

◆ OS_POLICY_DEFAULT

#define OS_POLICY_DEFAULT OS_POLICY_BSD

Definition at line 92 of file stream-tcp-reassemble.h.

Typedef Documentation

◆ TcpReassemblyThreadCtx

typedef struct TcpReassemblyThreadCtx_ TcpReassemblyThreadCtx

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Supported OS list and default OS policy is BSD

Enumerator
OS_POLICY_NONE
OS_POLICY_BSD
OS_POLICY_BSD_RIGHT
OS_POLICY_OLD_LINUX
OS_POLICY_LINUX
OS_POLICY_OLD_SOLARIS
OS_POLICY_SOLARIS
OS_POLICY_HPUX10
OS_POLICY_HPUX11
OS_POLICY_IRIX
OS_POLICY_MACOS
OS_POLICY_WINDOWS
OS_POLICY_VISTA
OS_POLICY_WINDOWS2K3
OS_POLICY_FIRST
OS_POLICY_LAST

Definition at line 34 of file stream-tcp-reassemble.h.

◆ StreamUpdateDir

enum StreamUpdateDir

Enumerator
UPDATE_DIR_NONE
UPDATE_DIR_PACKET
UPDATE_DIR_OPPOSING
UPDATE_DIR_BOTH

Definition at line 54 of file stream-tcp-reassemble.h.

Function Documentation

◆ EnableTcpSessionDumping()

void EnableTcpSessionDumping ( void )

Definition at line 96 of file stream-tcp-reassemble.c.

◆ IsTcpSessionDumpingEnabled()

bool IsTcpSessionDumpingEnabled ( void )

inline

Definition at line 91 of file stream-tcp-reassemble.c.

◆ StreamDataAvailableForProtoDetect()

uint32_t StreamDataAvailableForProtoDetect ( TcpStream * stream )

Definition at line 723 of file stream-tcp-reassemble.c.

References StreamingBufferRegion_::buf_offset, DEBUG_VALIDATE_BUG_ON, StreamingBuffer_::head, RB_EMPTY, StreamingBuffer_::region, TcpStream_::sb, StreamingBuffer_::sbb_size, StreamingBuffer_::sbb_tree, and StreamingBufferRegion_::stream_offset.

◆ StreamReassembleRawHasDataReady()

bool StreamReassembleRawHasDataReady	(	TcpSession *	ssn,
		Packet *	p
	)

does the stream engine have data to inspect?

Returns true if there is data to inspect. In IDS case this is about ACK'd data in the packet's direction.

In the IPS case this is about the packet itself.

Definition at line 1509 of file stream-tcp-reassemble.c.

References TcpStream_::base_seq, TcpSession_::client, TcpStream_::flags, PKT_IS_TOSERVER, RB_EMPTY, TcpStream_::seg_tree, TcpStream_::segs_right_edge, TcpSession_::server, STREAM_BASE_OFFSET, STREAM_RAW_PROGRESS, STREAMTCP_STREAM_FLAG_DISABLE_RAW, STREAMTCP_STREAM_FLAG_NOREASSEMBLY, and StreamTcpInlineMode().

Here is the call graph for this function:

◆ StreamTcpAppLayerIsDisabled()

int StreamTcpAppLayerIsDisabled ( Flow * f )

Parameters

f	locked flow

Definition at line 464 of file stream-tcp-reassemble.c.

References TcpSession_::flags, Flow_::proto, Flow_::protoctx, and STREAMTCP_FLAG_APP_LAYER_DISABLED.

◆ StreamTcpCreateTestPacket()

void StreamTcpCreateTestPacket	(	uint8_t *	payload,
		uint8_t	value,
		uint8_t	payload_len,
		uint8_t	len
	)

The Function to create the packet with given payload, which is used to test the reassembly of the engine.

Parameters

payload	The variable used to store the payload contents of the current packet.
value	The value which current payload will have for this packet
payload_len	The length of the filed payload for current packet.
len	Length of the payload array

Definition at line 2207 of file stream-tcp-reassemble.c.

References len, and payload_len.

◆ StreamTcpDisableAppLayer()

void StreamTcpDisableAppLayer ( Flow * f )

Parameters

f	locked flow

Definition at line 448 of file stream-tcp-reassemble.c.

References Flow_::alparser, APP_LAYER_PARSER_EOF_TC, APP_LAYER_PARSER_EOF_TS, AppLayerParserStateSetFlag(), TcpSession_::client, Flow_::protoctx, TcpSession_::server, StreamTcpDisableAppLayerReassembly, and StreamTcpSetStreamFlagAppProtoDetectionCompleted.

Here is the call graph for this function:

◆ StreamTcpGetSegment()

TcpSegment* StreamTcpGetSegment	(	ThreadVars *	tv,
		TcpReassemblyThreadCtx *	ra_ctx
	)

get a segment from the pool

Return values

seg	Segment from the pool or NULL

Definition at line 2120 of file stream-tcp-reassemble.c.

References TcpReassemblyThreadCtx_::counter_tcp_segment_from_cache, TcpReassemblyThreadCtx_::counter_tcp_segment_from_pool, TcpReassemblyThreadCtx_::counter_tcp_segment_memcap, PoolThreadGetById(), TcpSegment::sbseg, SCLogDebug, segment_thread_pool, TcpReassemblyThreadCtx_::segment_thread_pool_id, StatsIncr(), StreamTcpThreadCacheGetSegment(), and tv.

Referenced by StreamTcpUTAddSegmentWithByte(), and StreamTcpUTAddSegmentWithPayload().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpPruneSession()

void StreamTcpPruneSession	(	Flow *	f,
		uint8_t	flags
	)

Remove idle TcpSegments from TcpSession.

Checks app progress and raw progress and progresses them if needed, slides the streaming buffer, then gets rid of excess segments.

Parameters

f	flow
flags	direction flags

Definition at line 886 of file stream-tcp-list.c.

References TcpSession_::client, flags, TcpStream_::flags, TcpSession_::flags, Flow_::protoctx, TcpStream_::sb, TcpStreamCnf_::sbcnf, SCEnter, SCLogDebug, SCReturn, TcpSession_::server, stream_config, StreamingBufferClear(), STREAMTCP_FLAG_APP_LAYER_DISABLED, STREAMTCP_STREAM_FLAG_DEPTH_REACHED, STREAMTCP_STREAM_FLAG_DISABLE_RAW, STREAMTCP_STREAM_FLAG_NOREASSEMBLY, and StreamTcpReturnStreamSegments().

Here is the call graph for this function:

◆ StreamTcpReassembleAppLayer()

int StreamTcpReassembleAppLayer	(	ThreadVars *	tv,
		TcpReassemblyThreadCtx *	ra_ctx,
		TcpSession *	ssn,
		TcpStream *	stream,
		Packet *	p,
		enum StreamUpdateDir	app_update_dir
	)

Update the stream reassembly upon receiving a packet.

For IDS mode, the stream is in the opposite direction of the packet, as the ACK-packet is ACK'ing the stream.

One of the utilities call by this function AppLayerHandleTCPData(), has a feature where it will call this very same function for the stream opposing the stream it is called with. This shouldn't cause any issues, since processing of each stream is independent of the other stream.

Definition at line 1398 of file stream-tcp-reassemble.c.

References AppLayerHandleTCPData(), TcpStream_::flags, TcpSession_::flags, Packet_::flags, Packet_::flow, PKT_PSEUDO_STREAM_END, RB_MIN, SCEnter, SCLogDebug, SCReturnInt, TcpStream_::seg_tree, TcpSession_::state, STREAM_APP_PROGRESS, STREAM_HAS_SEEN_DATA, STREAM_RIGHT_EDGE, STREAMTCP_FLAG_APP_LAYER_DISABLED, STREAMTCP_STREAM_FLAG_NOREASSEMBLY, TCP_CLOSING, and tv.

Here is the call graph for this function:

◆ StreamTcpReassembleCheckMemcap()

int StreamTcpReassembleCheckMemcap ( uint64_t size )

Function to Check the reassembly memory usage counter against the allowed max memory usage for TCP segments.

Parameters

size	Size of the TCP segment and its payload length memory allocated

Return values

1	if in bounds
0	if not in bounds

Definition at line 164 of file stream-tcp-reassemble.c.

References SC_ATOMIC_GET, SCLogNotice, stream_config, t_pcapcnt, and unlikely.

Referenced by StreamTcpReassembleRealloc().

Here is the caller graph for this function:

◆ StreamTcpReassembleDecrMemuse()

void StreamTcpReassembleDecrMemuse ( uint64_t size )

Function to Decrease the memory usage counter for the TCP reassembly segments.

Parameters

size	Size of the TCP segment and its payload length memory allocated

Definition at line 129 of file stream-tcp-reassemble.c.

References BUG_ON, RunmodeIsUnittests(), SC_ATOMIC_GET, SC_ATOMIC_SUB, SCLogDebug, and StreamTcpReassembleMemuseGlobalCounter().

Referenced by StreamTcpReassembleRealloc().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpReassembleDepthReached()

int StreamTcpReassembleDepthReached ( Packet * p )

check if stream in pkt direction has depth reached

Parameters

p	packet with LOCKED flow

Return values

1	stream has depth reached
0	stream does not have depth reached

Definition at line 626 of file stream-tcp-reassemble.c.

References TcpSession_::client, TcpStream_::flags, Packet_::flow, FLOW_PKT_TOSERVER, Packet_::flowflags, Flow_::protoctx, TcpSession_::server, and STREAMTCP_STREAM_FLAG_DEPTH_REACHED.

◆ StreamTcpReassembleFree()

void StreamTcpReassembleFree ( bool )

Definition at line 540 of file stream-tcp-reassemble.c.

References SCMutexLock.

Referenced by StreamTcpFreeConfig().

Here is the caller graph for this function:

◆ StreamTcpReassembleFreeThreadCtx()

void StreamTcpReassembleFreeThreadCtx ( TcpReassemblyThreadCtx * )

Definition at line 597 of file stream-tcp-reassemble.c.

References TcpReassemblyThreadCtx_::app_tctx, AppLayerDestroyCtxThread(), SCEnter, SCFree, SCReturn, and StreamTcpThreadCacheCleanup().

Referenced by StreamTcpThreadDeinit(), and StreamTcpUTDeinit().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpReassembleGetMemcap()

uint64_t StreamTcpReassembleGetMemcap ( void )

Return memcap value.

Returns: memcap memcap value

Definition at line 200 of file stream-tcp-reassemble.c.

References SC_ATOMIC_GET, and stream_config.

◆ StreamTcpReassembleHandleSegment()

int StreamTcpReassembleHandleSegment	(	ThreadVars *	,
		TcpReassemblyThreadCtx *	,
		TcpSession *	,
		TcpStream *	,
		Packet *
	)

Definition at line 2000 of file stream-tcp-reassemble.c.

References DEBUG_VALIDATE_BUG_ON, and SCEnter.

◆ StreamTcpReassembleHandleSegmentHandleData()

int StreamTcpReassembleHandleSegmentHandleData	(	ThreadVars *	tv,
		TcpReassemblyThreadCtx *	ra_ctx,
		TcpSession *	ssn,
		TcpStream *	stream,
		Packet *	p
	)

Insert a packets TCP data into the stream reassembly engine.

Return values

0	good segment, as far as we checked.
-1	insert failure due to memcap

If the retval is 0 the segment is inserted correctly, or overlap is handled, or it wasn't added because of reassembly depth.

Definition at line 747 of file stream-tcp-reassemble.c.

References TcpSession_::data_first_seen_dir, TcpStream_::flags, TcpSession_::flags, TcpStream_::os_policy, PKT_IS_TOSERVER, SCEnter, SCLogDebug, SCReturnInt, STREAMTCP_FLAG_APP_LAYER_DISABLED, STREAMTCP_STREAM_FLAG_NEW_RAW_DISABLED, StreamTcpSetOSPolicy(), TcpSession_::urg_offset_tc, and TcpSession_::urg_offset_ts.

Referenced by StreamTcpUTAddPayload().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpReassembleIncrMemuse()

void StreamTcpReassembleIncrMemuse ( uint64_t size )

Function to Increment the memory usage counter for the TCP reassembly segments.

Parameters

size	Size of the TCP segment and its payload length memory allocated

Definition at line 116 of file stream-tcp-reassemble.c.

References SC_ATOMIC_ADD, SCLogDebug, and StreamTcpReassembleMemuseGlobalCounter().

Referenced by StreamTcpReassembleRealloc().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpReassembleInit()

int StreamTcpReassembleInit ( bool )

Definition at line 524 of file stream-tcp-reassemble.c.

References StreamTcpReassembleInitMemuse().

Here is the call graph for this function:

◆ StreamTcpReassembleInitMemuse()

void StreamTcpReassembleInitMemuse ( void )

Definition at line 105 of file stream-tcp-reassemble.c.

References SC_ATOMIC_INIT.

Referenced by StreamTcpReassembleInit(), and UtRunTests().

Here is the caller graph for this function:

◆ StreamTcpReassembleInitThreadCtx()

TcpReassemblyThreadCtx* StreamTcpReassembleInitThreadCtx ( ThreadVars * tv )

Definition at line 558 of file stream-tcp-reassemble.c.

References TcpReassemblyThreadCtx_::app_tctx, AppLayerGetCtxThread(), SCCalloc, SCEnter, SCMutexLock, and unlikely.

Referenced by StreamTcpUTInit().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpReassembleInsertSegment()

int StreamTcpReassembleInsertSegment	(	ThreadVars *	tv,
		TcpReassemblyThreadCtx *	ra_ctx,
		TcpStream *	stream,
		TcpSegment *	seg,
		Packet *	p,
		uint8_t *	pkt_data,
		uint16_t	pkt_datalen
	)

Returns: 0 ok; -1 segment not inserted due to memcap issue

Parameters

seg	segment, this function takes total ownership

In case of error, this function returns the segment to the pool

Definition at line 634 of file stream-tcp-list.c.

References SCEnter.

Referenced by StreamTcpUTAddSegmentWithByte(), and StreamTcpUTAddSegmentWithPayload().

Here is the caller graph for this function:

◆ StreamTcpReassembleMemuseGlobalCounter()

uint64_t StreamTcpReassembleMemuseGlobalCounter ( void )

Definition at line 150 of file stream-tcp-reassemble.c.

◆ StreamTcpReassembleRealloc()

void* StreamTcpReassembleRealloc	(	void *	optr,
		size_t	orig_size,
		size_t	size
	)

Definition at line 229 of file stream-tcp-reassemble.c.

References SC_ATOMIC_GET, SC_ELIMIT, SC_ENOMEM, sc_errno, SCLogDebug, SCRealloc, stream_config, StreamTcpReassembleCheckMemcap(), StreamTcpReassembleDecrMemuse(), and StreamTcpReassembleIncrMemuse().

Here is the call graph for this function:

◆ StreamTcpReassembleRegisterTests()

void StreamTcpReassembleRegisterTests ( void )

The Function Register the Unit tests to test the reassembly engine for various OS policies.

Definition at line 3902 of file stream-tcp-reassemble.c.

References UtRegisterTest().

Here is the call graph for this function:

◆ StreamTcpReassembleSetMemcap()

int StreamTcpReassembleSetMemcap ( uint64_t size )

Update memcap value.

Parameters

size	new memcap value

Definition at line 185 of file stream-tcp-reassemble.c.

References SC_ATOMIC_GET, SC_ATOMIC_SET, and stream_config.

◆ StreamTcpReassembleTriggerRawReassembly()

void StreamTcpReassembleTriggerRawReassembly	(	TcpSession *	ssn,
		int	direction
	)

Trigger RAW stream reassembly.

Used by AppLayerTriggerRawStreamReassembly to trigger RAW stream reassembly from the applayer, for example upon completion of a HTTP request.

It sets a flag in the stream so that the next Raw call will return the data.

Parameters

ssn	TcpSession

Definition at line 2156 of file stream-tcp-reassemble.c.

References BUG_ON, TcpSession_::client, TcpStream_::flags, SCLogDebug, TcpSession_::server, and STREAMTCP_STREAM_FLAG_TRIGGER_RAW.

Referenced by AppLayerParserTriggerRawStreamReassembly().

Here is the caller graph for this function:

◆ StreamTcpReassemblySetMinInspectDepth()

void StreamTcpReassemblySetMinInspectDepth	(	TcpSession *	ssn,
		int	direction,
		uint32_t	depth
	)

Definition at line 2173 of file stream-tcp-reassemble.c.

References BUG_ON, TcpSession_::client, TcpStream_::min_inspect_depth, SCLogDebug, and TcpSession_::server.

◆ StreamTcpReturnStreamSegments()

void StreamTcpReturnStreamSegments ( TcpStream * stream )

return all segments in this stream into the pool(s)

Parameters

stream the stream to cleanup

Definition at line 398 of file stream-tcp-reassemble.c.

◆ StreamTcpSegmentReturntoPool()

void StreamTcpSegmentReturntoPool ( TcpSegment * seg )

Function to return the segment back to the pool.

Parameters

seg	Segment which will be returned back to the pool.

Definition at line 381 of file stream-tcp-reassemble.c.

References TcpSegment::pcap_hdr_storage, TcpSegmentPcapHdrStorage_::pktlen, and StreamTcpThreadCacheReturnSegment().

Referenced by StreamTcpReturnStreamSegments().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ StreamTcpSetDisableRawReassemblyFlag()

void StreamTcpSetDisableRawReassemblyFlag	(	TcpSession *	ssn,
		char	direction
	)

Set the No reassembly flag for the given direction in given TCP session.

Parameters

ssn	TCP Session to set the flag in
direction	direction to set the flag in: 0 toserver, 1 toclient

Definition at line 6744 of file stream-tcp.c.

References TcpSession_::client, TcpStream_::flags, TcpSession_::server, and STREAMTCP_STREAM_FLAG_NEW_RAW_DISABLED.

◆ StreamTcpSetOSPolicy()

void StreamTcpSetOSPolicy	(	TcpStream *	stream,
		Packet *	p
	)

Function to set the OS policy for the given stream based on the destination of the received packet.

Parameters

stream	TcpStream of which os_policy needs to set
p	Packet which is used to set the os policy

Definition at line 1007 of file stream-tcp.c.

Referenced by StreamTcpReassembleHandleSegmentHandleData().

Here is the caller graph for this function:

◆ StreamTcpSetSessionBypassFlag()

void StreamTcpSetSessionBypassFlag ( TcpSession * ssn )

enable bypass

Parameters

ssn	TCP Session to set the flag in
direction	direction to set the flag in: 0 toserver, 1 toclient

Definition at line 6755 of file stream-tcp.c.

References TcpSession_::flags, and STREAMTCP_FLAG_BYPASS.

◆ StreamTcpSetSessionNoReassemblyFlag()

void StreamTcpSetSessionNoReassemblyFlag	(	TcpSession *	ssn,
		char	direction
	)

disable reassembly

Disable app layer and set raw inspect to no longer accept new data. Stream engine will then fully disable raw after last inspection.

Parameters

ssn	TCP Session to set the flag in
direction	direction to set the flag in: 0 toserver, 1 toclient

Definition at line 6728 of file stream-tcp.c.

References TcpSession_::client, TcpStream_::flags, TcpSession_::flags, TcpSession_::server, STREAMTCP_FLAG_APP_LAYER_DISABLED, and STREAMTCP_STREAM_FLAG_NEW_RAW_DISABLED.

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ OS_POLICY_DEFAULT

Typedef Documentation

◆ TcpReassemblyThreadCtx

Enumeration Type Documentation

◆ anonymous enum

◆ StreamUpdateDir

Function Documentation

◆ EnableTcpSessionDumping()

◆ IsTcpSessionDumpingEnabled()

◆ StreamDataAvailableForProtoDetect()

◆ StreamReassembleRawHasDataReady()

◆ StreamTcpAppLayerIsDisabled()

◆ StreamTcpCreateTestPacket()

◆ StreamTcpDisableAppLayer()

◆ StreamTcpGetSegment()

◆ StreamTcpPruneSession()

◆ StreamTcpReassembleAppLayer()

◆ StreamTcpReassembleCheckMemcap()

◆ StreamTcpReassembleDecrMemuse()

◆ StreamTcpReassembleDepthReached()

◆ StreamTcpReassembleFree()

◆ StreamTcpReassembleFreeThreadCtx()

◆ StreamTcpReassembleGetMemcap()

◆ StreamTcpReassembleHandleSegment()

◆ StreamTcpReassembleHandleSegmentHandleData()

◆ StreamTcpReassembleIncrMemuse()

◆ StreamTcpReassembleInit()

◆ StreamTcpReassembleInitMemuse()

◆ StreamTcpReassembleInitThreadCtx()

◆ StreamTcpReassembleInsertSegment()

◆ StreamTcpReassembleMemuseGlobalCounter()

◆ StreamTcpReassembleRealloc()

◆ StreamTcpReassembleRegisterTests()

◆ StreamTcpReassembleSetMemcap()

◆ StreamTcpReassembleTriggerRawReassembly()

◆ StreamTcpReassemblySetMinInspectDepth()

◆ StreamTcpReturnStreamSegments()

◆ StreamTcpSegmentReturntoPool()

◆ StreamTcpSetDisableRawReassemblyFlag()

◆ StreamTcpSetOSPolicy()

◆ StreamTcpSetSessionBypassFlag()

◆ StreamTcpSetSessionNoReassemblyFlag()