1 files changed, 27 insertions, 0 deletions

diff --git a/include/net/sctp/user.h b/include/net/sctp/user.h
index 1b02d7ad453b..9a0ae091366d 100644
--- a/include/net/sctp/user.h
+++ b/include/net/sctp/user.h
@@ -107,6 +107,7 @@ typedef __s32 sctp_assoc_t;
 #define SCTP_GET_LOCAL_ADDRS    109             /* Get all local address. */
 #define SCTP_SOCKOPT_CONNECTX   110             /* CONNECTX requests. */
 #define SCTP_SOCKOPT_CONNECTX3  111     /* CONNECTX requests (updated) */
+#define SCTP_GET_ASSOC_STATS    112     /* Read only */
 
 /*
  * 5.2.1 SCTP Initiation Structure (SCTP_INIT)
@@ -719,6 +720,32 @@ struct sctp_getaddrs {
         __u8                    addrs[0]; /*output, variable size*/
 };
 
+/* A socket user request obtained via SCTP_GET_ASSOC_STATS that retrieves
+ * association stats. All stats are counts except sas_maxrto and
+ * sas_obs_rto_ipaddr. maxrto is the max observed rto + transport since
+ * the last call. Will return 0 when RTO was not update since last call
+ */
+struct sctp_assoc_stats {
+        sctp_assoc_t    sas_assoc_id;    /* Input */
+                                         /* Transport of observed max RTO */
+        struct sockaddr_storage sas_obs_rto_ipaddr;
+        __u64           sas_maxrto;      /* Maximum Observed RTO for period */
+        __u64           sas_isacks;      /* SACKs received */
+        __u64           sas_osacks;      /* SACKs sent */
+        __u64           sas_opackets;    /* Packets sent */
+        __u64           sas_ipackets;    /* Packets received */
+        __u64           sas_rtxchunks;   /* Retransmitted Chunks */
+        __u64           sas_outofseqtsns;/* TSN received > next expected */
+        __u64           sas_idupchunks;  /* Dups received (ordered+unordered) */
+        __u64           sas_gapcnt;      /* Gap Acknowledgements Received */
+        __u64           sas_ouodchunks;  /* Unordered data chunks sent */
+        __u64           sas_iuodchunks;  /* Unordered data chunks received */
+        __u64           sas_oodchunks;   /* Ordered data chunks sent */
+        __u64           sas_iodchunks;   /* Ordered data chunks received */
+        __u64           sas_octrlchunks; /* Control chunks sent */
+        __u64           sas_ictrlchunks; /* Control chunks received */
+};
+
 /* These are bit fields for msghdr->msg_flags.  See section 5.1.  */
 /* On user space Linux, these live in <bits/socket.h> as an enum.  */
 enum sctp_msg_flags {