Estimate RTT, bandwidth and packet loss between nodes.

[tinc] / src / node.h

diff --git a/src/node.h b/src/node.h
index 662ad68..51938cd 100644 (file)
--- a/src/node.h
+++ b/src/node.h
@@ -78,6 +78,8 @@ typedef struct node_t {
        uint32_t sent_seqno;                    /* Sequence number last sent to this node */
        uint32_t received_seqno;                /* Sequence number last received from this node */
        uint32_t received;                      /* Total valid packets received from this node */
+       uint32_t prev_received_seqno;
+       uint32_t prev_received;
        uint32_t farfuture;                     /* Packets in a row that have arrived from the far future */
        unsigned char* late;                    /* Bitfield marking late packets */
 
@@ -86,6 +88,11 @@ typedef struct node_t {
        length_t maxmtu;                        /* Probed maximum MTU */
        int mtuprobes;                          /* Number of probes */
        timeout_t mtutimeout;                   /* Probe event */
+       struct timeval probe_time;              /* Time the last probe was sent or received */
+       int probe_counter;                      /* Number of probes received since last burst was sent */
+       float rtt;                              /* Last measured round trip time */
+       float bandwidth;                        /* Last measured bandwidth */
+       float packetloss;                       /* Last measured packet loss rate */
 
        uint64_t in_packets;
        uint64_t in_bytes;