#include "suricata-common.h"
#include "app-layer-htp-file.h"
#include "app-layer-htp-range.h"
#include "app-layer-events.h"
#include "util-validate.h"
#include "stream-tcp.h"
#include "app-layer-parser.h"
#include "util-unittest-helper.h"
#include "tests/app-layer-htp-file.c"

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Functions
int	HTPFileOpen (HtpState s, HtpTxUserData tx, const uint8_t filename, uint16_t filename_len, const uint8_t data, uint32_t data_len, uint64_t txid, uint8_t direction)
	Open the file with "filename" and pass the first chunk of data if any. More...

int	HTPParseContentRange (bstr rawvalue, HTTPContentRange range)

int	HTPFileOpenWithRange (HtpState s, HtpTxUserData txud, const uint8_t filename, uint16_t filename_len, const uint8_t data, uint32_t data_len, uint64_t txid, bstr rawvalue, HtpTxUserData htud)
	Sets range for a file. More...

int	HTPFileStoreChunk (HtpState s, HtpTxUserData tx, const uint8_t *data, uint32_t data_len, uint8_t direction)
	Store a chunk of data in the flow. More...

bool	HTPFileCloseHandleRange (const StreamingBufferConfig sbcfg, FileContainer files, const uint16_t flags, HttpRangeContainerBlock c, const uint8_t data, uint32_t data_len)
	close range, add reassembled file if possible More...

int	HTPFileClose (HtpState s, HtpTxUserData tx, const uint8_t *data, uint32_t data_len, uint8_t flags, uint8_t direction)
	Close the file in the flow. More...

void	AppLayerHtpFileRegisterTests (void)
	this function registers unit tests for AppLayerHtpFile More...

void	HTPFileParserRegisterTests (void)

Variables
StreamingBufferConfig	htp_sbcfg

Detailed Description

Author: Victor Julien victo.nosp@m.r@in.nosp@m.linia.nosp@m.c.ne.nosp@m.t

This file provides HTTP protocol file handling support for the engine using the HTP library.

Definition in file app-layer-htp-file.c.

Function Documentation

◆ AppLayerHtpFileRegisterTests()

void AppLayerHtpFileRegisterTests ( void )

this function registers unit tests for AppLayerHtpFile

Definition at line 86 of file app-layer-htp-file.c.

References UtRegisterTest().

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◆ HTPFileClose()

int HTPFileClose	(	HtpState *	s,
		HtpTxUserData *	tx,
		const uint8_t *	data,
		uint32_t	data_len,
		uint8_t	flags,
		uint8_t	direction
	)

Close the file in the flow.

Parameters

tx	HtpTxUserData
data	data chunk if any
data_len	length of the data portion
flags	flags to indicate events
direction	flow direction

Currently on the FLOW_FILE_TRUNCATED flag is implemented, indicating that the file isn't complete but we're stopping storing it.

Return values

0	ok
-1	error
-2	not storing files on this flow/tx

Definition at line 310 of file app-layer-htp-file.c.

References HtpTxUserData_::file_range, FILE_TRUNCATED, FileCloseFile(), HtpTxUserData_::files_tc, HtpTxUserData_::files_ts, flags, htp_sbcfg, HTPFileCloseHandleRange(), HttpRangeFreeBlock(), SCEnter, SCLogDebug, SCReturnInt, and HtpTxUserData_::tx_data.

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◆ HTPFileCloseHandleRange()

bool HTPFileCloseHandleRange	(	const StreamingBufferConfig *	sbcfg,
		FileContainer *	files,
		const uint16_t	flags,
		HttpRangeContainerBlock *	c,
		const uint8_t *	data,
		uint32_t	data_len
	)

close range, add reassembled file if possible

Return values

true	if reassembled file was added
false	if no reassembled file was added

Definition at line 268 of file app-layer-htp-file.c.

Referenced by HTPFileClose().

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◆ HTPFileOpen()

int HTPFileOpen	(	HtpState *	s,
		HtpTxUserData *	tx,
		const uint8_t *	filename,
		uint16_t	filename_len,
		const uint8_t *	data,
		uint32_t	data_len,
		uint64_t	txid,
		uint8_t	direction
	)

Open the file with "filename" and pass the first chunk of data if any.

Parameters

s	http state
filename	name of the file
filename_len	length of the name
data	data chunk (if any)
data_len	length of the data portion
direction	flow direction

Return values

0	ok
-1	error
-2	not handling files on this flow

Definition at line 50 of file app-layer-htp-file.c.

References HtpState_::cfg, DEBUG_VALIDATE_BUG_ON, HtpTxUserData_::file_range, HtpState_::file_track_id, FileFlowFlagsToFlags(), FileOpenFileWithId(), HtpTxUserData_::files_tc, HtpTxUserData_::files_ts, FileSetInspectSizes(), flags, htp_sbcfg, HTPCfgDir_::inspect_min_size, HTPCfgDir_::inspect_window, HTPCfgRec_::request, HTPCfgRec_::response, SCLogDebug, SCReturnInt, FileContainer_::tail, and HtpTxUserData_::tx_data.

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◆ HTPFileOpenWithRange()

int HTPFileOpenWithRange	(	HtpState *	s,
		HtpTxUserData *	txud,
		const uint8_t *	filename,
		uint16_t	filename_len,
		const uint8_t *	data,
		uint32_t	data_len,
		uint64_t	txid,
		bstr *	rawvalue,
		HtpTxUserData *	htud
	)

Sets range for a file.

Parameters

s	http state
rawvalue	raw header value

Return values

0	ok
-1	error

Definition at line 149 of file app-layer-htp-file.c.

References DEBUG_VALIDATE_BUG_ON, flags, and SCEnter.

◆ HTPFileParserRegisterTests()

void HTPFileParserRegisterTests ( void )

Definition at line 1219 of file app-layer-htp-file.c.

References UtRegisterTest().

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◆ HTPFileStoreChunk()

int HTPFileStoreChunk	(	HtpState *	s,
		HtpTxUserData *	tx,
		const uint8_t *	data,
		uint32_t	data_len,
		uint8_t	direction
	)

Store a chunk of data in the flow.

Parameters

s	HtpState
tx	HtpTxUserData
data	data chunk (if any)
data_len	length of the data portion
direction	flow direction

Return values

0	ok
-1	error
-2	file doesn't need storing

Definition at line 223 of file app-layer-htp-file.c.

References HtpTxUserData_::file_range, FileAppendData(), HtpTxUserData_::files_tc, HtpTxUserData_::files_ts, htp_sbcfg, HttpRangeAppendData(), SCEnter, SCLogDebug, and SCReturnInt.

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◆ HTPParseContentRange()

int HTPParseContentRange	(	bstr *	rawvalue,
		HTTPContentRange *	range
	)

Performs parsing of the content-range value

Parameters

[in]	rawvalue
[out]	range

Returns: HTP_OK on success, HTP_ERROR on failure.

Definition at line 96 of file app-layer-htp-file.c.

References len.

Variable Documentation

◆ htp_sbcfg

StreamingBufferConfig htp_sbcfg

Definition at line 96 of file app-layer-htp.c.

Referenced by HTPFileClose(), HTPFileOpen(), and HTPFileStoreChunk().

Functions

Variables

Detailed Description

Function Documentation

◆ AppLayerHtpFileRegisterTests()

◆ HTPFileClose()

◆ HTPFileCloseHandleRange()

◆ HTPFileOpen()

◆ HTPFileOpenWithRange()

◆ HTPFileParserRegisterTests()

◆ HTPFileStoreChunk()

◆ HTPParseContentRange()

Variable Documentation

◆ htp_sbcfg