#include "suricata-common.h"
#include "util-thash.h"
#include "rust.h"

Include dependency graph for app-layer-htp-range.h:

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

Data Structures
struct	HttpRangeContainerBuffer

struct	HttpRangeContainerFile

struct	HttpRangeContainerBlock

Typedefs
typedef struct HttpRangeContainerBuffer	HttpRangeContainerBuffer

typedef struct HttpRangeContainerFile	HttpRangeContainerFile

typedef struct HttpRangeContainerBlock	HttpRangeContainerBlock

Functions
void	HttpRangeContainersInit (void)

void	HttpRangeContainersDestroy (void)

uint32_t	HttpRangeContainersTimeoutHash (const SCTime_t ts)

int	HttpRangeContainerBufferCompare (HttpRangeContainerBuffer a, HttpRangeContainerBuffer b)

	RB_HEAD (HTTP_RANGES, HttpRangeContainerBuffer)

	RB_PROTOTYPE (HTTP_RANGES, HttpRangeContainerBuffer, rb, HttpRangeContainerBufferCompare)

int	HttpRangeAppendData (const StreamingBufferConfig sbcfg, HttpRangeContainerBlock c, const uint8_t *data, uint32_t len)

File *	HttpRangeClose (const StreamingBufferConfig sbcfg, HttpRangeContainerBlock c, uint16_t flags)

HttpRangeContainerBlock *	HttpRangeContainerOpenFile (const unsigned char key, uint32_t keylen, const Flow f, const HTTPContentRange cr, const StreamingBufferConfig sbcfg, const unsigned char name, uint16_t name_len, uint16_t flags, const unsigned char data, uint32_t data_len)

void	HttpRangeFreeBlock (HttpRangeContainerBlock *b)

uint64_t	HTPByteRangeMemcapGlobalCounter (void)

uint64_t	HTPByteRangeMemuseGlobalCounter (void)

int	HTPByteRangeSetMemcap (uint64_t)

Typedef Documentation

◆ HttpRangeContainerBlock

typedef struct HttpRangeContainerBlock HttpRangeContainerBlock

A structure representing a single range request : either skipping, buffering, or appending As this belongs to a flow, appending data to it is ensured to be thread-safe Only one block per file has the pointer to the container

◆ HttpRangeContainerBuffer

typedef struct HttpRangeContainerBuffer HttpRangeContainerBuffer

◆ HttpRangeContainerFile

typedef struct HttpRangeContainerFile HttpRangeContainerFile

Item in hash table for a file in multiple ranges Thread-safety is ensured with the thread-safe hash table cf THashData The number of use is increased for each flow opening a new HttpRangeContainerBlock until it closes this HttpRangeContainerBlock The design goal is to have concurrency only on opening and closing a range request and have a lock-free data structure belonging to one Flow (see HttpRangeContainerBlock below) for every append in between (we suppose we have many appends per range request)

Function Documentation

◆ HTPByteRangeMemcapGlobalCounter()

uint64_t HTPByteRangeMemcapGlobalCounter ( void )

Definition at line 55 of file app-layer-htp-range.c.

References THashTableContext_::config, ContainerUrlRangeList, ContainerTHashTable::ht, and SC_ATOMIC_GET.

Referenced by AppLayerRegisterGlobalCounters().

Here is the caller graph for this function:

◆ HTPByteRangeMemuseGlobalCounter()

uint64_t HTPByteRangeMemuseGlobalCounter ( void )

Definition at line 61 of file app-layer-htp-range.c.

References ContainerUrlRangeList, ContainerTHashTable::ht, and SC_ATOMIC_GET.

Referenced by AppLayerRegisterGlobalCounters().

Here is the caller graph for this function:

◆ HTPByteRangeSetMemcap()

int HTPByteRangeSetMemcap ( uint64_t size )

Definition at line 45 of file app-layer-htp-range.c.

References THashTableContext_::config, ContainerUrlRangeList, ContainerTHashTable::ht, SC_ATOMIC_GET, and SC_ATOMIC_SET.

◆ HttpRangeAppendData()

int HttpRangeAppendData	(	const StreamingBufferConfig *	sbcfg,
		HttpRangeContainerBlock *	c,
		const uint8_t *	data,
		uint32_t	len
	)

Definition at line 377 of file app-layer-htp-range.c.

References HttpRangeContainerBuffer::buffer, HttpRangeContainerBuffer::buflen, HttpRangeContainerBlock::current, THashDataGetResult::data, FileAppendData(), HttpRangeContainerBlock::files, HttpRangeContainerBuffer::gap, len, HttpRangeContainerBuffer::offset, SCLogDebug, and HttpRangeContainerBlock::toskip.

Referenced by HTPFileCloseHandleRange(), and HTPFileStoreChunk().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ HttpRangeClose()

File * HttpRangeClose	(	const StreamingBufferConfig *	sbcfg,
		HttpRangeContainerBlock *	c,
		uint16_t	flags
	)

Note: if f is non-NULL, the ownership of the file is transferred to the caller.

Definition at line 450 of file app-layer-htp-range.c.

References HttpRangeContainerBuffer::buffer, HttpRangeContainerBuffer::buflen, HttpRangeContainerBlock::container, ContainerUrlRangeList, HttpRangeContainerBlock::current, DEBUG_VALIDATE_BUG_ON, HttpRangeContainerFile::error, FILE_TRUNCATED, FileAppendData(), HttpRangeContainerFile::files, HttpRangeContainerBlock::files, flags, HttpRangeContainerFile::fragment_tree, HttpRangeContainerBuffer::gap, HttpRangeContainerFile::hdata, ContainerTHashTable::ht, HttpRangeContainerFile::lastsize, HttpRangeContainerBuffer::offset, offset, RB_FOREACH_SAFE, SC_ATOMIC_GET, SC_ATOMIC_SUB, SCFree, SCLogDebug, File_::size, HttpRangeContainerBuffer::start, FileContainer_::tail, HttpRangeContainerBlock::toskip, and HttpRangeContainerFile::totalsize.

Referenced by HTPFileCloseHandleRange().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ HttpRangeContainerBufferCompare()

int HttpRangeContainerBufferCompare	(	HttpRangeContainerBuffer *	a,
		HttpRangeContainerBuffer *	b
	)

Definition at line 67 of file app-layer-htp-range.c.

References HttpRangeContainerBuffer::buflen, HttpRangeContainerBuffer::offset, and HttpRangeContainerBuffer::start.

◆ HttpRangeContainerOpenFile()

HttpRangeContainerBlock * HttpRangeContainerOpenFile	(	const unsigned char *	key,
		uint32_t	keylen,
		const Flow *	f,
		const HTTPContentRange *	cr,
		const StreamingBufferConfig *	sbcfg,
		const unsigned char *	name,
		uint16_t	name_len,
		uint16_t	flags,
		const unsigned char *	data,
		uint32_t	data_len
	)