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//?@file????active.c
//?@author??Russ?Combs?

#ifdef?HAVE_CONFIG_H
#include?“config.h“
#endif

#ifdef?HAVE_DUMBNET_H
#include?
#else
#include?
#endif

#include?“active.h“
#include?“session_api.h“
#include?“stream_api.h“
#include?“snort.h“

#include?“preprocessors/spp_frag3.h“

#ifdef?ACTIVE_RESPONSE
#include?“encode.h“
#include?“sfdaq.h“
#endif

//?these?can‘t?be?pkt?flags?because?we?do?the?handling
//?of?these?flags?following?all?processing?and?the?drop
//?or?response?may?have?been?produced?by?a?pseudopacket.
tActiveDrop?active_drop_pkt?=?ACTIVE_ALLOW;
tActiveSsnDrop?active_drop_ssn?=?ACTIVE_SSN_ALLOW;
//?TBD?consider?performance?of?replacing?active_drop_pkt/ssn
//?with?a?active_verdict.??change?over?if?it?is?a?wash?or?better.

int?active_tunnel_bypass?=?0;
int?active_suspend?=?0;

#ifdef?ACTIVE_RESPONSE
int?active_have_rsp?=?0;

#define?MAX_ATTEMPTS?20
static?uint8_t?s_attempts?=?0;
static?int?s_enabled?=?0;

static?eth_t*?s_link?=?NULL;
static?ip_t*?s_ipnet?=?NULL;

static?void*?s_rejData?*s_rspData;
static?Active_ResponseFunc?s_rejFunc?=?NULL?s_rspFunc?=?NULL;

static?int?Active_Open（const?char*）;
static?int?Active_Close（void）;

static?int?Active_SendEth（const?DAQ_PktHdr_t*?int?const?uint8_t*?uint32_t）;
static?int?Active_SendIp（const?DAQ_PktHdr_t*?int?const?uint8_t*?uint32_t）;

typedef?int?（*send_t）?（
????const?DAQ_PktHdr_t*?h?int?rev?const?uint8_t*?buf?uint32_t?len）;
static?send_t?s_send?=?DAQ_Inject;
static?uint64_t?s_injects?=?0;

static?inline?PROTO_ID?GetInnerProto?（const?Packet*?p）
{
????if?（?!p->next_layer?）?return?PROTO_MAX;
????return?（?p->layers[p->next_layer-1].proto?）;
}

//--------------------------------------------------------------------
//?this?implementation?ensures?that?flexible?responses
//?take?precedence?over?active?responses.

int?Active_QueueReject?（void）
{
????if?（?Active_Suspended（）?）
????????return?0;

????if?（?!s_