rds: Changing IP address internal representation to struct in6_addr
This patch changes the internal representation of an IP address to use
struct in6_addr. IPv4 address is stored as an IPv4 mapped address.
All the functions which take an IP address as argument are also
changed to use struct in6_addr. But RDS socket layer is not modified
such that it still does not accept IPv6 address from an application.
And RDS layer does not accept nor initiate IPv6 connections.
v2: Fixed sparse warnings.
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rds/ib.c b/net/rds/ib.c
index b6ad38e..c712a84 100644
--- a/net/rds/ib.c
+++ b/net/rds/ib.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2006 Oracle. All rights reserved.
+ * Copyright (c) 2006, 2017 Oracle and/or its affiliates. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@@ -296,8 +296,8 @@ static int rds_ib_conn_info_visitor(struct rds_connection *conn,
if (conn->c_trans != &rds_ib_transport)
return 0;
- iinfo->src_addr = conn->c_laddr;
- iinfo->dst_addr = conn->c_faddr;
+ iinfo->src_addr = conn->c_laddr.s6_addr32[3];
+ iinfo->dst_addr = conn->c_faddr.s6_addr32[3];
memset(&iinfo->src_gid, 0, sizeof(iinfo->src_gid));
memset(&iinfo->dst_gid, 0, sizeof(iinfo->dst_gid));
@@ -341,7 +341,8 @@ static void rds_ib_ic_info(struct socket *sock, unsigned int len,
* allowed to influence which paths have priority. We could call userspace
* asserting this policy "routing".
*/
-static int rds_ib_laddr_check(struct net *net, __be32 addr)
+static int rds_ib_laddr_check(struct net *net, const struct in6_addr *addr,
+ __u32 scope_id)
{
int ret;
struct rdma_cm_id *cm_id;
@@ -357,7 +358,7 @@ static int rds_ib_laddr_check(struct net *net, __be32 addr)
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
- sin.sin_addr.s_addr = addr;
+ sin.sin_addr.s_addr = addr->s6_addr32[3];
/* rdma_bind_addr will only succeed for IB & iWARP devices */
ret = rdma_bind_addr(cm_id, (struct sockaddr *)&sin);
@@ -367,9 +368,9 @@ static int rds_ib_laddr_check(struct net *net, __be32 addr)
cm_id->device->node_type != RDMA_NODE_IB_CA)
ret = -EADDRNOTAVAIL;
- rdsdebug("addr %pI4 ret %d node type %d\n",
- &addr, ret,
- cm_id->device ? cm_id->device->node_type : -1);
+ rdsdebug("addr %pI6c ret %d node type %d\n",
+ addr, ret,
+ cm_id->device ? cm_id->device->node_type : -1);
rdma_destroy_id(cm_id);