suricata
app-layer-htp.c File Reference
#include "suricata.h"
#include "suricata-common.h"
#include "conf.h"
#include "decode.h"
#include "threads.h"
#include "counters.h"
#include "util-print.h"
#include "util-pool.h"
#include "util-radix-tree.h"
#include "util-file.h"
#include "util-byte.h"
#include "stream-tcp-private.h"
#include "stream-tcp-reassemble.h"
#include "stream-tcp.h"
#include "stream.h"
#include "app-layer-protos.h"
#include "app-layer-parser.h"
#include "app-layer.h"
#include "app-layer-detect-proto.h"
#include "app-layer-frames.h"
#include "app-layer-htp.h"
#include "app-layer-htp-body.h"
#include "app-layer-htp-file.h"
#include "app-layer-htp-libhtp.h"
#include "app-layer-htp-xff.h"
#include "app-layer-htp-range.h"
#include "app-layer-htp-mem.h"
#include "util-spm.h"
#include "util-debug.h"
#include "util-time.h"
#include "util-misc.h"
#include "util-enum.h"
#include "util-unittest.h"
#include "util-unittest-helper.h"
#include "flow-util.h"
#include "detect-engine.h"
#include "detect-engine-build.h"
#include "detect-engine-state.h"
#include "detect-parse.h"
#include "decode-events.h"
#include "util-memcmp.h"
#include "util-random.h"
#include "util-validate.h"
#include "detect-engine-alert.h"
#include "conf-yaml-loader.h"
Include dependency graph for app-layer-htp.c:

Go to the source code of this file.

Macros

#define IF_HTP_PERSONALITY_NUM(p)   if (strcasecmp(#p, str) == 0) return HTP_SERVER_ ## p
 
#define HTP_MAX_MESSAGES   512
 
#define HTP_ERROR_MAX   (sizeof(htp_errors) / sizeof(htp_errors[0]))
 
#define HTP_WARNING_MAX   (sizeof(htp_warnings) / sizeof(htp_warnings[0]))
 
#define C_D_HDR   "content-disposition:"
 
#define C_D_HDR_LEN   20
 
#define C_T_HDR   "content-type:"
 
#define C_T_HDR_LEN   13
 
enum  HttpFrameTypes { HTTP_FRAME_REQUEST, HTTP_FRAME_RESPONSE }
 
SCEnumCharMap http_decoder_event_table []
 
SCEnumCharMap http_frame_table []
 
struct {
   const char *   msg
 
   uint8_t   de
 
htp_errors []
 
struct {
   const char *   msg
 
   uint8_t   de
 
htp_warnings []
 
 SC_ATOMIC_DECLARE (uint32_t, htp_config_flags)
 
void HTPStateFree (void *state)
 Function to frees the HTTP state memory and also frees the HTTP connection parser memory which was used by the HTP library. More...
 
void AppLayerHtpEnableRequestBodyCallback (void)
 Sets a flag that informs the HTP app layer that some module in the engine needs the http request body data. \initonly. More...
 
void AppLayerHtpEnableResponseBodyCallback (void)
 Sets a flag that informs the HTP app layer that some module in the engine needs the http request body data. \initonly. More...
 
void AppLayerHtpNeedFileInspection (void)
 Sets a flag that informs the HTP app layer that some module in the engine needs the http request file. More...
 
void HTPAtExitPrintStats (void)
 Print the stats of the HTTP requests. More...
 
void HTPFreeConfig (void)
 Clears the HTTP server configuration memory used by HTP library. More...
 
void HTPConfigure (void)
 
void AppLayerHtpPrintStats (void)
 
void * HtpGetTxForH2 (void *alstate)
 
void RegisterHTPParsers (void)
 Register the HTTP protocol and state handling functions to APP layer of the engine. More...
 
void HtpConfigCreateBackup (void)
 
void HtpConfigRestoreBackup (void)
 

Detailed Description

Macro Definition Documentation

◆ C_D_HDR

#define C_D_HDR   "content-disposition:"

Definition at line 1231 of file app-layer-htp.c.

◆ C_D_HDR_LEN

#define C_D_HDR_LEN   20

Definition at line 1232 of file app-layer-htp.c.

◆ C_T_HDR

#define C_T_HDR   "content-type:"

Definition at line 1233 of file app-layer-htp.c.

◆ C_T_HDR_LEN

#define C_T_HDR_LEN   13

Definition at line 1234 of file app-layer-htp.c.

◆ HTP_ERROR_MAX

#define HTP_ERROR_MAX   (sizeof(htp_errors) / sizeof(htp_errors[0]))

Definition at line 631 of file app-layer-htp.c.

◆ HTP_MAX_MESSAGES

#define HTP_MAX_MESSAGES   512

Limit to the number of libhtp messages that can be handled

Definition at line 98 of file app-layer-htp.c.

◆ HTP_WARNING_MAX

#define HTP_WARNING_MAX   (sizeof(htp_warnings) / sizeof(htp_warnings[0]))

Definition at line 632 of file app-layer-htp.c.

◆ IF_HTP_PERSONALITY_NUM

#define IF_HTP_PERSONALITY_NUM (   p)    if (strcasecmp(#p, str) == 0) return HTP_SERVER_ ## p

Enumeration Type Documentation

◆ HttpFrameTypes

Enumerator
HTTP_FRAME_REQUEST 
HTTP_FRAME_RESPONSE 

Definition at line 180 of file app-layer-htp.c.

Function Documentation

◆ SC_ATOMIC_DECLARE()

SC_ATOMIC_DECLARE ( uint32_t  ,
htp_config_flags   
)

Variable Documentation

◆ de

uint8_t de

◆ htp_errors

struct { ... } htp_errors[]
Initial value:
= {
{ "GZip decompressor: inflateInit2 failed", HTTP_DECODER_EVENT_GZIP_DECOMPRESSION_FAILED},
{ "Request field invalid: colon missing", HTTP_DECODER_EVENT_REQUEST_FIELD_MISSING_COLON},
{ "Response field invalid: missing colon", HTTP_DECODER_EVENT_RESPONSE_FIELD_MISSING_COLON},
{ "Request chunk encoding: Invalid chunk length", HTTP_DECODER_EVENT_INVALID_REQUEST_CHUNK_LEN},
{ "Response chunk encoding: Invalid chunk length", HTTP_DECODER_EVENT_INVALID_RESPONSE_CHUNK_LEN},
{ "Already seen 100-Continue", HTTP_DECODER_EVENT_100_CONTINUE_ALREADY_SEEN},
{ "Unable to match response to request", HTTP_DECODER_EVENT_UNABLE_TO_MATCH_RESPONSE_TO_REQUEST},
{ "Invalid server port information in request", HTTP_DECODER_EVENT_INVALID_SERVER_PORT_IN_REQUEST},
{ "Request buffer over", HTTP_DECODER_EVENT_REQUEST_FIELD_TOO_LONG},
{ "Response buffer over", HTTP_DECODER_EVENT_RESPONSE_FIELD_TOO_LONG},
{ "C-T multipart/byteranges in responses not supported", HTTP_DECODER_EVENT_RESPONSE_MULTIPART_BYTERANGES},
{ "Compression bomb:", HTTP_DECODER_EVENT_COMPRESSION_BOMB},
}

◆ htp_warnings

struct { ... } htp_warnings[]

◆ http_decoder_event_table

SCEnumCharMap http_decoder_event_table[]

Definition at line 107 of file app-layer-htp.c.

◆ http_frame_table

SCEnumCharMap http_frame_table[]
Initial value:
= {
{
"request",
},
{
"response",
},
{ NULL, -1 },
}

Definition at line 185 of file app-layer-htp.c.

◆ msg

const char* msg

Definition at line 571 of file app-layer-htp.c.

Referenced by MimeDecParseFullMsg(), SCLog(), and SCLogErr().

HTTP_DECODER_EVENT_COMPRESSION_BOMB
@ HTTP_DECODER_EVENT_COMPRESSION_BOMB
Definition: app-layer-htp.h:127
HTTP_DECODER_EVENT_RESPONSE_MULTIPART_BYTERANGES
@ HTTP_DECODER_EVENT_RESPONSE_MULTIPART_BYTERANGES
Definition: app-layer-htp.h:116
HTTP_DECODER_EVENT_REQUEST_FIELD_MISSING_COLON
@ HTTP_DECODER_EVENT_REQUEST_FIELD_MISSING_COLON
Definition: app-layer-htp.h:82
HTTP_DECODER_EVENT_INVALID_RESPONSE_CHUNK_LEN
@ HTTP_DECODER_EVENT_INVALID_RESPONSE_CHUNK_LEN
Definition: app-layer-htp.h:85
HTTP_DECODER_EVENT_REQUEST_FIELD_TOO_LONG
@ HTTP_DECODER_EVENT_REQUEST_FIELD_TOO_LONG
Definition: app-layer-htp.h:102
HTTP_DECODER_EVENT_RESPONSE_FIELD_TOO_LONG
@ HTTP_DECODER_EVENT_RESPONSE_FIELD_TOO_LONG
Definition: app-layer-htp.h:103
HTTP_DECODER_EVENT_INVALID_CONTENT_LENGTH_FIELD_IN_RESPONSE
@ HTTP_DECODER_EVENT_INVALID_CONTENT_LENGTH_FIELD_IN_RESPONSE
Definition: app-layer-htp.h:89
HTTP_DECODER_EVENT_RESPONSE_FIELD_MISSING_COLON
@ HTTP_DECODER_EVENT_RESPONSE_FIELD_MISSING_COLON
Definition: app-layer-htp.h:83
HTTP_DECODER_EVENT_INVALID_REQUEST_CHUNK_LEN
@ HTTP_DECODER_EVENT_INVALID_REQUEST_CHUNK_LEN
Definition: app-layer-htp.h:84
HTTP_FRAME_RESPONSE
@ HTTP_FRAME_RESPONSE
Definition: app-layer-htp.c:182
HTTP_DECODER_EVENT_GZIP_DECOMPRESSION_FAILED
@ HTTP_DECODER_EVENT_GZIP_DECOMPRESSION_FAILED
Definition: app-layer-htp.h:81
HTTP_DECODER_EVENT_100_CONTINUE_ALREADY_SEEN
@ HTTP_DECODER_EVENT_100_CONTINUE_ALREADY_SEEN
Definition: app-layer-htp.h:92
HTTP_FRAME_REQUEST
@ HTTP_FRAME_REQUEST
Definition: app-layer-htp.c:181
HTTP_DECODER_EVENT_INVALID_SERVER_PORT_IN_REQUEST
@ HTTP_DECODER_EVENT_INVALID_SERVER_PORT_IN_REQUEST
Definition: app-layer-htp.h:94
HTTP_DECODER_EVENT_UNABLE_TO_MATCH_RESPONSE_TO_REQUEST
@ HTTP_DECODER_EVENT_UNABLE_TO_MATCH_RESPONSE_TO_REQUEST
Definition: app-layer-htp.h:93