output-json.c File Reference

#include "suricata-common.h"
#include "flow.h"
#include "conf.h"
#include "util-debug.h"
#include "util-time.h"
#include "util-var-name.h"
#include "util-macset.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "detect-engine.h"
#include "util-classification-config.h"
#include "util-syslog.h"
#include "output-eve-syslog.h"
#include "output-eve-null.h"
#include "output.h"
#include "output-json.h"
#include "util-byte.h"
#include "util-print.h"
#include "util-proto-name.h"
#include "util-optimize.h"
#include "util-buffer.h"
#include "util-logopenfile.h"
#include "util-log-redis.h"
#include "util-device.h"
#include "util-validate.h"
#include "flow-var.h"
#include "flow-bit.h"
#include "flow-storage.h"
#include "source-pcap-file-helper.h"

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Data Structures
struct	JSONMACAddrInfo

Macros
#define	DEFAULT_LOG_FILENAME   "eve.json"
#define	MODULE_NAME   "OutputJSON"
#define	MAX_JSON_SIZE   2048
#define	COMMUNITY_ID_BUF_SIZE   64

Typedefs
typedef struct JSONMACAddrInfo	JSONMACAddrInfo

Functions
void	OutputJsonRegister (void)
json_t *	SCJsonString (const char *val)
void	EveFileInfo (JsonBuilder *jb, const File *ff, const uint64_t tx_id, const uint16_t flags)
void	EveAddMetadata (const Packet *p, const Flow *f, JsonBuilder *js)
void	EveAddCommonOptions (const OutputJsonCommonSettings *cfg, const Packet *p, const Flow *f, JsonBuilder *js, enum OutputJsonLogDirection dir)
void	EvePacket (const Packet *p, JsonBuilder *js, uint32_t max_length)
	Jsonify a packet. More...
void	EveTcpFlags (const uint8_t flags, JsonBuilder *js)
	jsonify tcp flags field Only add 'true' fields in an attempt to keep things reasonably compact. More...
void	JsonAddrInfoInit (const Packet *p, enum OutputJsonLogDirection dir, JsonAddrInfo *addr)
void	CreateEveFlowId (JsonBuilder *js, const Flow *f)
void	JSONFormatAndAddMACAddr (JsonBuilder *js, const char *key, const uint8_t *val, bool is_array)
JsonBuilder *	CreateEveHeader (const Packet *p, enum OutputJsonLogDirection dir, const char *event_type, JsonAddrInfo *addr, OutputJsonCtx *eve_ctx)
JsonBuilder *	CreateEveHeaderWithTxId (const Packet *p, enum OutputJsonLogDirection dir, const char *event_type, JsonAddrInfo *addr, uint64_t tx_id, OutputJsonCtx *eve_ctx)
int	OutputJSONMemBufferCallback (const char *str, size_t size, void *data)
int	OutputJSONBuffer (json_t *js, LogFileCtx *file_ctx, MemBuffer **buffer)
int	OutputJsonBuilderBuffer (ThreadVars *tv, const Packet *p, Flow *f, JsonBuilder *js, OutputJsonThreadCtx *ctx)
OutputInitResult	OutputJsonInitCtx (ConfNode *conf)
	Create a new LogFileCtx for "fast" output style. More...

Variables
const JsonAddrInfo	json_addr_info_zero

Detailed Description

Author

Tom DeCanio td@np.nosp@m.ulse.nosp@m.tech..nosp@m.com

Logs detection and monitoring events in JSON format.

Definition in file output-json.c.

Macro Definition Documentation

COMMUNITY_ID_BUF_SIZE

#define COMMUNITY_ID_BUF_SIZE   64

Definition at line 575 of file output-json.c.

DEFAULT_LOG_FILENAME

#define DEFAULT_LOG_FILENAME   "eve.json"

Definition at line 67 of file output-json.c.

MAX_JSON_SIZE

#define MAX_JSON_SIZE   2048

Definition at line 70 of file output-json.c.

MODULE_NAME

#define MODULE_NAME   "OutputJSON"

Definition at line 68 of file output-json.c.

Typedef Documentation

JSONMACAddrInfo

typedef struct JSONMACAddrInfo JSONMACAddrInfo

Function Documentation

CreateEveFlowId()

void CreateEveFlowId	(	JsonBuilder *	js,
		const Flow *	f
	)

Definition at line 689 of file output-json.c.

Referenced by CreateEveHeader().

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CreateEveHeader()

JsonBuilder* CreateEveHeader	(	const Packet *	p,
		enum OutputJsonLogDirection	dir,
		const char *	event_type,
		JsonAddrInfo *	addr,
		OutputJsonCtx *	eve_ctx
	)

Definition at line 806 of file output-json.c.

References CreateEveFlowId(), CreateIsoTimeString(), Packet_::flow, Packet_::ts, and unlikely.

Referenced by CreateEveHeaderWithTxId(), and RulesDumpMatchArray().

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CreateEveHeaderWithTxId()

JsonBuilder* CreateEveHeaderWithTxId	(	const Packet *	p,
		enum OutputJsonLogDirection	dir,
		const char *	event_type,
		JsonAddrInfo *	addr,
		uint64_t	tx_id,
		OutputJsonCtx *	eve_ctx
	)

Definition at line 902 of file output-json.c.

References CreateEveHeader(), and unlikely.

Referenced by RulesDumpTxMatchArray().

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EveAddCommonOptions()

void EveAddCommonOptions	(	const OutputJsonCommonSettings *	cfg,
		const Packet *	p,
		const Flow *	f,
		JsonBuilder *	js,
		enum OutputJsonLogDirection	dir
	)

Definition at line 398 of file output-json.c.

References EveAddMetadata(), OutputJsonCommonSettings_::include_ethernet, and OutputJsonCommonSettings_::include_metadata.

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EveAddMetadata()

void EveAddMetadata	(	const Packet *	p,
		const Flow *	f,
		JsonBuilder *	js
	)

Definition at line 375 of file output-json.c.

References Flow_::flowvar, and Packet_::pktvar.

Referenced by EveAddCommonOptions().

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EveFileInfo()

void EveFileInfo	(	JsonBuilder *	jb,
		const File *	ff,
		const uint64_t	tx_id,
		const uint16_t	flags
	)

Definition at line 124 of file output-json.c.

References File_::end, FILE_HAS_GAPS, FILE_MD5, FILE_SHA1, FILE_SHA256, FILE_STATE_CLOSED, FILE_STATE_ERROR, FILE_STATE_TRUNCATED, FILE_STORE, File_::file_store_id, FILE_STORED, FileTrackedSize(), flags, File_::flags, JB_SET_FALSE, JB_SET_STRING, JB_SET_TRUE, File_::md5, File_::name, File_::name_len, File_::sha1, File_::sha256, File_::sid, File_::sid_cnt, File_::start, and File_::state.

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EvePacket()

void EvePacket	(	const Packet *	p,
		JsonBuilder *	js,
		uint32_t	max_length
	)

Jsonify a packet.

Parameters

p	Packet
js	JSON object
max_length	If non-zero, restricts the number of packet data bytes handled.

Definition at line 422 of file output-json.c.

References Packet_::datalink, GET_PKT_DATA, and GET_PKT_LEN.

EveTcpFlags()

void EveTcpFlags	(	const uint8_t	flags,
		JsonBuilder *	js
	)

jsonify tcp flags field Only add 'true' fields in an attempt to keep things reasonably compact.

Definition at line 439 of file output-json.c.

References flags, JB_SET_TRUE, TH_ACK, TH_CWR, TH_ECN, TH_FIN, TH_PUSH, TH_RST, TH_SYN, and TH_URG.

JsonAddrInfoInit()

void JsonAddrInfoInit	(	const Packet *	p,
		enum OutputJsonLogDirection	dir,
		JsonAddrInfo *	addr
	)

Definition at line 459 of file output-json.c.

References LOG_DIR_PACKET.

Referenced by JsonBuildFileInfoRecord().

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JSONFormatAndAddMACAddr()

void JSONFormatAndAddMACAddr	(	JsonBuilder *	js,
		const char *	key,
		const uint8_t *	val,
		bool	is_array
	)

Definition at line 701 of file output-json.c.

OutputJSONBuffer()

int OutputJSONBuffer	(	json_t *	js,
		LogFileCtx *	file_ctx,
		MemBuffer **	buffer
	)

Definition at line 929 of file output-json.c.

References OutputJSONMemBufferWrapper_::buffer, LogFileCtx_::is_pcap_offline, LogFileCtx_::json_flags, JSON_OUTPUT_BUFFER_SIZE, LogFileWrite(), MemBufferWriteRaw(), OutputJSONMemBufferCallback(), PcapFileGetFilename(), LogFileCtx_::prefix, LogFileCtx_::prefix_len, LogFileCtx_::sensor_name, and TM_ECODE_OK.

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OutputJsonBuilderBuffer()

int OutputJsonBuilderBuffer	(	ThreadVars *	tv,
		const Packet *	p,
		Flow *	f,
		JsonBuilder *	js,
		OutputJsonThreadCtx *	ctx
	)

Definition at line 958 of file output-json.c.

References ctx, LogFileCtx_::is_pcap_offline, PcapFileGetFilename(), SCEveRunCallbacks(), LogFileCtx_::sensor_name, and tv.

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OutputJsonInitCtx()

OutputInitResult OutputJsonInitCtx

(

ConfNode *

conf

)

Create a new LogFileCtx for "fast" output style.

Parameters

conf	The configuration node for this output.

Returns

A LogFileCtx pointer on success, NULL on failure.

Definition at line 1073 of file output-json.c.

References ConfGet(), ConfNodeLookupChildValue(), OutputCtx_::data, OutputCtx_::DeInit, OutputJsonCtx_::file_ctx, LogFileNewCtx(), SCCalloc, SCLogDebug, SCLogWarning, SCStrdup, LogFileCtx_::sensor_name, and unlikely.

Referenced by OutputJsonRegister().

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OutputJSONMemBufferCallback()

int OutputJSONMemBufferCallback	(	const char *	str,
		size_t	size,
		void *	data
	)

Definition at line 915 of file output-json.c.

References OutputJSONMemBufferWrapper_::buffer, DEBUG_VALIDATE_BUG_ON, OutputJSONMemBufferWrapper_::expand_by, MEMBUFFER_OFFSET, MEMBUFFER_SIZE, MemBufferExpand(), MemBufferWriteRaw(), and str.

Referenced by OutputJSONBuffer().

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OutputJsonRegister()

void OutputJsonRegister

(

void

)

Definition at line 83 of file output-json.c.

References MODULE_NAME, OutputJsonInitCtx(), and OutputRegisterModule().

Referenced by OutputRegisterLoggers().

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SCJsonString()

json_t* SCJsonString

(

const char *

val

)

Definition at line 96 of file output-json.c.

References MAX_JSON_SIZE, offset, and PrintBufferData.

Variable Documentation

json_addr_info_zero

const JsonAddrInfo json_addr_info_zero

Definition at line 81 of file output-json.c.

Referenced by JsonBuildFileInfoRecord().