[SCTP]: Include ulpevents in socket receive buffer accounting.

Also introduces a sysctl option to configure the receive buffer
accounting policy to be either at socket or association level.
Default is all the associations on the same socket share the
receive buffer.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index 75b28dd634fe..fcd7096c953d 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -121,6 +121,14 @@ static ctl_table sctp_table[] = {
                 .proc_handler   = &proc_dointvec
         },
         {
+                .ctl_name       = NET_SCTP_RCVBUF_POLICY,
+                .procname       = "rcvbuf_policy",
+                .data           = &sctp_rcvbuf_policy,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = &proc_dointvec
+        },
+        {
                 .ctl_name       = NET_SCTP_PATH_MAX_RETRANS,
                 .procname       = "path_max_retrans",
                 .data           = &sctp_max_retrans_path,