From a71c8b60bc12c2c1023c7caac295e868fdf57022 Mon Sep 17 00:00:00 2001
From: Sean Hefty <sean.hefty@intel.com>
Date: Tue, 12 Jun 2012 12:43:39 -0700
Subject: [PATCH] Refresh of v6only

---
 include/rdma/rdma_cma.h |  1 +
 src/rsocket.c           | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/rdma/rdma_cma.h b/include/rdma/rdma_cma.h
index c0f83b1b..1487f8f0 100755
--- a/include/rdma/rdma_cma.h
+++ b/include/rdma/rdma_cma.h
@@ -650,6 +650,7 @@ enum {
 enum {
 	RDMA_OPTION_ID_TOS	 = 0,	/* uint8_t: RFC 2474 */
 	RDMA_OPTION_ID_REUSEADDR = 1,   /* int: ~SO_REUSEADDR */
+	RDMA_OPTION_ID_AFONLY	 = 2,   /* int: ~IPV6_V6ONLY */
 	RDMA_OPTION_IB_PATH	 = 1	/* struct ibv_path_data[] */
 };
 
diff --git a/src/rsocket.c b/src/rsocket.c
index a3c2c6ac..860c63ed 100644
--- a/src/rsocket.c
+++ b/src/rsocket.c
@@ -161,6 +161,7 @@ struct rsocket {
 	long		  fd_flags;
 	uint64_t	  so_opts;
 	uint64_t	  tcp_opts;
+	uint64_t	  ipv6_opts;
 	enum rs_state	  state;
 	int		  cq_armed;
 	int		  retries;
@@ -1817,6 +1818,18 @@ int rsetsockopt(int socket, int level, int optname,
 			break;
 		}
 		break;
+	case IPPROTO_IPV6:
+		opts = &rs->ipv6_opts;
+		switch (optname) {
+		case IPV6_V6ONLY:
+			ret = rdma_set_option(rs->cm_id, RDMA_OPTION_ID,
+					      RDMA_OPTION_ID_AFONLY,
+					      (void *) optval, optlen);
+			opt_on = *(int *) optval;
+			break;
+		default:
+			break;
+		}
 	case SOL_RDMA:
 		if (rs->state > rs_listening) {
 			ret = ERR(EINVAL);
@@ -1910,6 +1923,16 @@ int rgetsockopt(int socket, int level, int optname,
 			break;
 		}
 		break;
+	case IPPROTO_IPV6:
+		switch (optname) {
+		case IPV6_V6ONLY:
+			*((int *) optval) = !!(rs->ipv6_opts & (1 << optname));
+			*optlen = sizeof(int);
+			break;
+		default:
+			ret = ENOTSUP;
+			break;
+		}
 	case SOL_RDMA:
 		switch (optname) {
 		case RDMA_SQSIZE:
-- 
2.45.2