xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

rds: Changing IP address internal representation to struct in6_addr

Browse Source 
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>
This commit is contained in:
Ka-Cheong Poon
2018-07-23 20:51:21 -07:00
committed by David S. Miller
parent a6c90dd321
commit eee2fa6ab3
23 changed files with 864 additions and 370 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
net/rds/ib.c
View File

@@ -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);