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refactor

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wangyu-
2017-09-06 01:31:29 -05:00
parent 934a65e7bf
commit 698504aca0
3 changed files with 25 additions and 16 deletions
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23
network.cpp
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@@ -981,7 +981,7 @@ int send_raw_tcp(raw_info_t &raw_info,const char * payload, int payloadlen) {
}
raw_info.last_send_len=payloadlen;
raw_info.send_info.data_len=payloadlen;
return 0;
}
/*
@@ -1434,7 +1434,7 @@ int recv_raw_tcp(raw_info_t &raw_info,char * &payload,int &payloadlen)
{
send_info.ack_seq=recv_info.seq;
}*/
raw_info.last_recv_len=payloadlen;
raw_info.recv_info.data_len=payloadlen;
return 0;
}
/*
@@ -1636,18 +1636,18 @@ int after_send_raw0(raw_info_t &raw_info)
if(raw_mode==mode_faketcp)
{
if (send_info.syn == 0 && send_info.ack == 1&& raw_info.last_send_len != 0) //only modify send_info when the packet is not part of handshake
if (send_info.syn == 0 && send_info.ack == 1&& raw_info.send_info.data_len != 0) //only modify send_info when the packet is not part of handshake
{
if (seq_mode == 0)
{
} else if (seq_mode == 1)
{
send_info.seq += raw_info.last_send_len; //////////////////modify
send_info.seq += raw_info.send_info.data_len; //////////////////modify
} else if (seq_mode == 2)
{
if (random() % 5 == 3)
send_info.seq += raw_info.last_send_len; //////////////////modify
send_info.seq += raw_info.send_info.data_len; //////////////////modify
}
}
}
@@ -1669,10 +1669,17 @@ int after_recv_raw0(raw_info_t &raw_info)
{
if(recv_info.has_ts)
send_info.ts_ack=recv_info.ts;
if (recv_info.syn == 0 && recv_info.ack == 1 && raw_info.last_recv_len != 0) //only modify send_info when the packet is not part of handshake
if (recv_info.syn == 0 && recv_info.ack == 1 && raw_info.recv_info.data_len != 0) //only modify send_info when the packet is not part of handshake
{
if(larger_than_u32(recv_info.seq+raw_info.last_recv_len,send_info.ack_seq))
send_info.ack_seq = recv_info.seq+raw_info.last_recv_len;//TODO only update if its larger
if(seq_mode==0||seq_mode==1||seq_mode==2)
{
if(larger_than_u32(recv_info.seq+raw_info.recv_info.data_len,send_info.ack_seq))
send_info.ack_seq = recv_info.seq+raw_info.recv_info.data_len;//TODO only update if its larger
}
else if(seq_mode==3)
{
}
}
}
if(raw_mode==mode_icmp)