sctp: Add support to per-association statistics via a new SCTP_GET_ASSOC_STATS call

[mirror_ubuntu-bionic-kernel.git] / include / net / sctp / structs.h

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 2b2f61dd40369fa504f9479003d22da87f086d05..c2521016d64636aa18d5b6d98ad8154d8cad5fb9 100644 (file)
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1312,6 +1312,40 @@ struct sctp_inithdr_host {
        __u32 initial_tsn;
 };
 
+/* SCTP_GET_ASSOC_STATS counters */
+struct sctp_priv_assoc_stats {
+       /* Maximum observed rto in the association during subsequent
+        * observations. Value is set to 0 if no RTO measurement took place
+        * The transport where the max_rto was observed is returned in
+        * obs_rto_ipaddr
+        */
+       struct sockaddr_storage obs_rto_ipaddr;
+       __u64 max_obs_rto;
+       /* Total In and Out SACKs received and sent */
+       __u64 isacks;
+       __u64 osacks;
+       /* Total In and Out packets received and sent */
+       __u64 opackets;
+       __u64 ipackets;
+       /* Total retransmitted chunks */
+       __u64 rtxchunks;
+       /* TSN received > next expected */
+       __u64 outofseqtsns;
+       /* Duplicate Chunks received */
+       __u64 idupchunks;
+       /* Gap Ack Blocks received */
+       __u64 gapcnt;
+       /* Unordered data chunks sent and received */
+       __u64 ouodchunks;
+       __u64 iuodchunks;
+       /* Ordered data chunks sent and received */
+       __u64 oodchunks;
+       __u64 iodchunks;
+       /* Control chunks sent and received */
+       __u64 octrlchunks;
+       __u64 ictrlchunks;
+};
+
 /* RFC2960
  *
  * 12. Recommended Transmission Control Block (TCB) Parameters
@@ -1830,6 +1864,8 @@ struct sctp_association {
 
        __u8 need_ecne:1,       /* Need to send an ECNE Chunk? */
             temp:1;            /* Is it a temporary association? */
+
+       struct sctp_priv_assoc_stats stats;
 };