Distinguish between MTU and MSS.

[utcp] / utcp_priv.h

diff --git a/utcp_priv.h b/utcp_priv.h
index fa706bcf84bcad5eed5e825bf3c7bc671cd51542..de942a8968ae61ef27592126244ad935dcfe5475 100644 (file)
--- a/utcp_priv.h
+++ b/utcp_priv.h
@@ -30,6 +30,11 @@
 #define FIN 4
 #define RST 8
 
+#define AUX_INIT 1
+#define AUX_FRAME 2
+#define AUX_SAK 3
+#define AUX_TIMESTAMP 4
+
 #define NSACKS 4
 #define DEFAULT_SNDBUFSIZE 4096
 #define DEFAULT_MAXSNDBUFSIZE 131072
@@ -120,11 +125,11 @@ struct utcp_connection {
 
                uint32_t last;
                uint32_t cwnd;
+               uint32_t ssthresh;
        } snd;
 
        struct {
                uint32_t nxt;
-               uint32_t wnd;
                uint32_t irs;
        } rcv;
 
@@ -147,6 +152,7 @@ struct utcp_connection {
 
        bool nodelay;
        bool keepalive;
+       bool shut_wr;
 
        // Congestion avoidance state
 
@@ -165,7 +171,8 @@ struct utcp {
 
        // Global socket options
 
-       uint16_t mtu;
+       uint16_t mtu; // The maximum size of a UTCP packet, including headers.
+       uint16_t mss; // The maximum size of the payload of a UTCP packet.
        int timeout; // sec
 
        // RTT variables