From a0d0de8ef2db880e38bf9932cea3675457c5574f Mon Sep 17 00:00:00 2001
From: victor <victor@e16421f0-f15b-0410-abcd-98678b794739>
Date: Thu, 26 Nov 2009 10:33:20 +0000
Subject: [PATCH] bugs by Sasha the.zett

git-svn-id: https://ttuki.vtt.fi/svn/p2p-next/TUD/p2tp/trunk@637 e16421f0-f15b-0410-abcd-98678b794739
---
 datagram.cpp |  8 ++++----
 sendrecv.cpp | 16 ++++++++++++----
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/datagram.cpp b/datagram.cpp
index f9bf857..76ec217 100644
--- a/datagram.cpp
+++ b/datagram.cpp
@@ -90,12 +90,12 @@ int Datagram::Send () {
                    (struct sockaddr*)&(addr.addr),sizeof(struct sockaddr_in));
     if (r<0)
         perror("can't send");
-    //offset=0;
-    //length=0;
     dgrams_up++;
     bytes_up+=size();
-    Time();
-    return r;
+	offset=0;
+	length=0;
+	Time();
+	return r;
 }
 
 int Datagram::Recv () {
diff --git a/sendrecv.cpp b/sendrecv.cpp
index 6ac587a..393a564 100644
--- a/sendrecv.cpp
+++ b/sendrecv.cpp
@@ -33,7 +33,7 @@ void    Channel::AddPeakHashes (Datagram& dgram) {
 
 void    Channel::AddUncleHashes (Datagram& dgram, bin64_t pos) {
     bin64_t peak = file().peak_for(pos);
-    while (pos!=peak && ((NOW&7)==7 || !data_out_cap_.within(pos.parent())) &&
+    while (pos!=peak && ((NOW&3)==3 || !data_out_cap_.within(pos.parent())) &&
             ack_in_.get(pos.parent())==bins::EMPTY) {
         bin64_t uncle = pos.sibling();
         dgram.Push8(P2TP_HASH);
@@ -52,8 +52,8 @@ bin64_t        Channel::DequeueHint () { // TODO: resilience
         bin64_t hint = hint_in_.front().bin;
         tint time = hint_in_.front().time;
         hint_in_.pop_front();
-        if (time < NOW-TINT_SEC*3/2 ) //NOW-8*rtt_avg_)
-            continue;
+        //if (time < NOW-TINT_SEC*3/2 ) //NOW-8*rtt_avg_)
+        //    continue;
         // Totally flawed:
         // a. May empty the queue when you least expect
         // b. May lose parts of partially ACKd HINTs
@@ -170,7 +170,13 @@ bin64_t        Channel::AddData (Datagram& dgram) {
         if (ack_in_.is_empty() && file().size())
             AddPeakHashes(dgram);
         AddUncleHashes(dgram,tosend);
-        data_out_cap_ = tosend;
+        if (!ack_in_.is_empty()) // TODO: cwnd_>1
+            data_out_cap_ = tosend;
+    }
+
+    if (dgram.size()>254) {
+        dgram.Send(); // kind of fragmentation
+        dgram.Push32(peer_channel_id_);
     }
     
     dgram.Push8(P2TP_DATA);
@@ -363,6 +369,8 @@ void    Channel::CleanDataOut (bin64_t ackd_pos) {
         }
         data_out_.pop_front();
     }
+    while (!data_out_.empty() && data_out_.front().bin==bin64_t::NONE)
+        data_out_.pop_front();
 
 }
 
-- 
2.20.1