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/*
*/
#include "sapp_api.h"
#include "sapp_private_api.h"
#ifdef __cplusplus
extern "C" {
#endif
extern struct streaminfo *skip_proxy_phony_stream(struct streaminfo *a_tcp);
extern int udp_stream_table_size;
/*
20141017 : lqy
1) �½�deal_proxy_stream ���ô���sock4,5,http�Ĺ�����������
2) ģ��һ��stream �γ����Ƶ�α��pstream->pPrxoy->fstream
20150123 lqy
1) ���´����ĵ�ַ˳����Ƕ����ʱ��ʹ�������ַ��ʵ�ʵ�ַ�Ͷ˿�
�����п���ΪCONNECT pop.163.com:110 ����ģʽ�£���ַ�����0.0.0.0
*/
/*�ص��ϲ���Ϣ���ͷŴ�������������Ϣ*/
void free_tcp_proxy_stream(struct streaminfo *pstream,struct streaminfo *pProxy)
{
if (pProxy == NULL)
{
return;
}
UCHAR saved_opstate;
struct proxydetail *pProxydetail=(struct proxydetail *)pProxy->pdetail;
int threadnum=pstream->threadnum;
//�Ȼص����ܴ��ڵ�Ӧ�ò�
if(pProxydetail->apme!=NULL)
{
pProxy->opstate=OP_STATE_CLOSE;
saved_opstate = pstream->opstate;
pstream->opstate = OP_STATE_CLOSE;/* 20160928 lijia add, ���ô�����������״̬ */
//tcp stream �ص�
stream_process_tcp(pstream,NULL,NULL,NULL,&(pProxydetail->apme),&(pProxy->opstate));
pProxydetail->apme=NULL;
pstream->opstate = saved_opstate; /* 20160928 lijia add, �ָ���ǰ��״̬ */
}
//�ڶ��� �ͷ�
pProxydetail=(struct proxydetail *)pProxy->pdetail;
if(pProxydetail->pUser)
{
dictator_free(threadnum,pProxydetail->pUser);
pProxydetail->pUser = NULL;
}
if(pProxydetail->pPwd)
{
dictator_free(threadnum,pProxydetail->pPwd);
pProxydetail->pPwd = NULL;
}
if(pProxydetail->pIpv6)
{
dictator_free(threadnum,pProxydetail->pIpv6);
pProxydetail->pIpv6 = NULL;
}
if(pProxydetail->append)
{
dictator_free(threadnum,pProxydetail->append);
pProxydetail->append = NULL;
}
if(pProxy->addr.paddr!=NULL)
{
dictator_free(threadnum,pProxy->addr.paddr);
pProxy->addr.paddr=NULL;
}
if(pProxy->pdetail != NULL)
{
dictator_free(threadnum,pProxy->pdetail);
pProxy->pdetail=NULL;
}
dictator_free(threadnum,pProxy);
pProxy = NULL;
}
/*��һ����������Ϣ�����һ��fatherstream,���ҹ��ص�stream��*/
void set_proxy_fstream(struct streaminfo *pstream,struct streaminfo *pProxy)
{
void *paddr=NULL;
struct proxydetail *pProxydetail=(struct proxydetail *)pProxy->pdetail;
struct tcpdetail *pdetail=(struct tcpdetail *)pstream->pdetail;
//������������ͼ���ַ��Ϣ
if(pstream->addr.addrtype==ADDR_TYPE_IPV4)
{
pProxy->addr.addrtype=ADDR_TYPE_IPV4;
paddr=dictator_malloc(pstream->threadnum,sizeof(struct tuple4));
memcpy(paddr,pstream->addr.paddr,sizeof(struct tuple4));
((struct tuple4 *)paddr)->daddr=pProxydetail->uiIP;
((struct tuple4 *)paddr)->dest=pProxydetail->uiPort;
}
if(pstream->addr.addrtype==ADDR_TYPE_IPV6)
{
pProxy->addr.addrtype=ADDR_TYPE_IPV6;
paddr=dictator_malloc(pstream->threadnum,sizeof(struct tuple6));
memcpy(paddr,pstream->addr.paddr,sizeof(struct tuple6));
if(NULL == pProxydetail->pIpv6){ /* 2015-02-02 lijia add, �п��ܻ�ȡ���� */
//printf("proxy type:%d, not fill addr info!\n", pProxydetail->iType);
memset(((struct tuple6 *)paddr)->daddr,0,16);
}else{
memcpy(((struct tuple6 *)paddr)->daddr,pProxydetail->pIpv6,16);
}
((struct tuple6 *)paddr)->dest=pProxydetail->uiPort;
}
pProxy->addr.paddr=paddr;
pProxy->pktstate=OP_STATE_PENDING;
pProxy->opstate=OP_STATE_PENDING;
pProxydetail->serverpktnum=pdetail->serverpktnum;
pProxydetail->clientpktnum=pdetail->clientpktnum;
pProxydetail->serverbytes=pdetail->serverbytes;
pProxydetail->clientbytes=pdetail->clientbytes;
pProxy->threadnum = pstream->threadnum;
return;
}
/*��������������Ϣ������ɺ���Ƕ����*/
int deal_tcp_in_proxy_stream(struct streaminfo *stream,void * a_packet,struct streaminfo *pProxy)
{
int ret=PASS;
int appstate=APP_STATE_GIVEME;
struct proxydetail *pProxydetail=(struct proxydetail *)pProxy->pdetail;
char tmpstate=stream->opstate;
void *paddr=NULL;
UCHAR addrtype;
struct streaminfo_private *stream_pr = (struct streaminfo_private *)stream;
raw_pkt_t *real_raw_pkt = (raw_pkt_t *)stream_pr->raw_pkt;
if(STREAM_TYPE_TCP == stream->type){
struct tcpdetail *pdetail=(struct tcpdetail *)stream->pdetail;
//struct tcpdetail_private *pdetail_pr=(struct tcpdetail_private *)stream->pdetail;
pdetail->serverpktnum-=pProxydetail->serverpktnum;
pdetail->clientpktnum-=pProxydetail->clientpktnum;
pdetail->serverbytes-=pProxydetail->serverbytes;
pdetail->clientbytes-=pProxydetail->clientbytes;
}else if(STREAM_TYPE_UDP == stream->type){
struct udpdetail *pdetail=(struct udpdetail *)stream->pdetail;
//struct udpdetail_private *pdetail_pr=(struct udpdetail_private *)stream->pdetail;
pdetail->serverpktnum-=pProxydetail->serverpktnum;
pdetail->clientpktnum-=pProxydetail->clientpktnum;
pdetail->serverbytes-=pProxydetail->serverbytes;
pdetail->clientbytes-=pProxydetail->clientbytes;
}else{
assert(0);
}
#if 0
struct streaminfo_private *carry_ip_stream = (struct streaminfo_private *)skip_proxy_phony_stream(pProxy->pfather);
if(NULL == carry_ip_stream){
sapp_runtime_log(RLOG_LV_FATAL, "too many proxy layer, maybe recur infinitely!\n");
return APP_STATE_GIVEME;
}
#else
struct streaminfo_private *carry_ip_stream = stream_pr; /* IP-PORT�洢��ͬһ��, ����Ҫͨ��pfather���� */
#endif
//�������Ӷ�Ӧ��ϵ��ʹ����α���������Ч
pProxy->pfather=stream->pfather;
stream->pfather=pProxy;
//add by lqy 2 0150123
addrtype=stream->addr.addrtype;
stream->addr.addrtype=pProxy->addr.addrtype;
pProxy->addr.addrtype=addrtype;
paddr=stream->addr.paddr;
stream->addr.paddr=pProxy->addr.paddr;
pProxy->addr.paddr=paddr;
//end add
stream->opstate=pProxy->opstate;
if(NULL == real_raw_pkt){ /* ��ʱ��̭, ��ԭʼ������ */
ret=stream_process_tcp(stream, NULL, NULL, NULL,
&pProxydetail->apme,&(stream->opstate));
}else{
ret=stream_process_tcp(stream,
(const void *)((char *)real_raw_pkt->raw_pkt_data + carry_ip_stream->offset_to_raw_pkt_hdr),
(const void *)((char *)real_raw_pkt->raw_pkt_data + stream_pr->offset_to_raw_pkt_hdr),
(const raw_pkt_t *)real_raw_pkt, &pProxydetail->apme,&(stream->opstate));
}
pProxy->opstate=stream->opstate;
//��ԭ״̬
stream->opstate=tmpstate;
stream->pfather=pProxy->pfather;
//add by lqy 2 0150123
addrtype=stream->addr.addrtype;
stream->addr.addrtype=pProxy->addr.addrtype;
pProxy->addr.addrtype=addrtype;
paddr=stream->addr.paddr;
stream->addr.paddr=pProxy->addr.paddr;
pProxy->addr.paddr=paddr;
if(STREAM_TYPE_TCP == stream->type){
struct tcpdetail *pdetail=(struct tcpdetail *)stream->pdetail;
//struct tcpdetail_private *pdetail_pr=(struct tcpdetail_private *)stream->pdetail;
pdetail->serverpktnum+=pProxydetail->serverpktnum;
pdetail->clientpktnum+=pProxydetail->clientpktnum;
pdetail->serverbytes+=pProxydetail->serverbytes;
pdetail->clientbytes+=pProxydetail->clientbytes;
}else if(STREAM_TYPE_UDP == stream->type){
struct tcpdetail *pdetail=(struct tcpdetail *)stream->pdetail;
//struct tcpdetail_private *pdetail_pr=(struct tcpdetail_private *)stream->pdetail;
pdetail->serverpktnum+=pProxydetail->serverpktnum;
pdetail->clientpktnum+=pProxydetail->clientpktnum;
pdetail->serverbytes+=pProxydetail->serverbytes;
pdetail->clientbytes+=pProxydetail->clientbytes;
}else{
assert(0);
}
if(ret==DROP)
{
appstate|=APP_STATE_DROPPKT;
}
if(pProxydetail->apme==NULL)
{
appstate|=APP_STATE_DROPME;
}
if(OP_STATE_CLOSE == stream->opstate){
appstate|= APP_STATE_DROPME;
}
return appstate;
}
#ifdef __cplusplus
}
#endif
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