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--max-rst-allowed --max-rst-to-show

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wangyu-
2018-02-24 17:26:29 -06:00
parent 7cb65ec45d
commit 0c2060028a
7 changed files with 92 additions and 10 deletions
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36
network.cpp
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@@ -566,6 +566,11 @@ int send_raw_ip(raw_info_t &raw_info,const char * payload,int payloadlen)
const packet_info_t &recv_info=raw_info.recv_info;
char send_raw_ip_buf[buf_len];
if(raw_info.disabled)
{
return 0;
}
struct iphdr *iph = (struct iphdr *) send_raw_ip_buf;
memset(iph,0,sizeof(iphdr));
@@ -1445,7 +1450,36 @@ int recv_raw_tcp(raw_info_t &raw_info,char * &payload,int &payloadlen)
if(tcph->rst==1)
{
mylog(log_error,"[%s,%d]rst==1\n",my_ntoa(recv_info.src_ip),recv_info.src_port);
raw_info.rst_received++;
if(max_rst_to_show>0)
{
if(raw_info.rst_received < max_rst_to_show)
{
mylog(log_warn,"[%s,%d]rst==1,cnt=%d\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received);
}
else if(raw_info.rst_received == max_rst_to_show)
{
mylog(log_warn,"[%s,%d]rst==1,cnt=%d >=max_rst_to_show, this log is muted for current connection\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received);
}
else
{
mylog(log_debug,"[%s,%d]rst==1,cnt=%d\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received);
}
}
if(max_rst_to_show==0)
{
mylog(log_debug,"[%s,%d]rst==1,cnt=%d\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received);
}
else
{
mylog(log_warn,"[%s,%d]rst==1,cnt=%d\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received);
}
if(max_rst_allowed>=0 && raw_info.rst_received==max_rst_allowed+1 )
{
mylog(log_warn,"[%s,%d]connection disabled because of rst_received %d > max_rst_allow=%d\n",my_ntoa(recv_info.src_ip),recv_info.src_port,(int)raw_info.rst_received,(int)max_rst_allowed );
raw_info.disabled=1;
}
}
/* if(recv_info.has_ts)