NFS: Enable NFS client to generate CLIENTID strings with IPv6 addresses

We recently added methods to RPC transports that provide string versions of
the remote peer address information.  Convert the NFSv4 SETCLIENTID
procedure to use those methods instead of building the client ID out of
whole cloth.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Cc: Aurelien Charbon <aurelien.charbon@ext.bull.net>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 8 insertions, 4 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 26192a70312..5e8c4cf7959 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2891,14 +2891,18 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program, unsigned short po
 
         for(;;) {
                 setclientid.sc_name_len = scnprintf(setclientid.sc_name,
-                                sizeof(setclientid.sc_name), "%s/%u.%u.%u.%u %s %u",
-                                clp->cl_ipaddr, NIPQUAD(clp->cl_addr.sin_addr),
+                                sizeof(setclientid.sc_name), "%s/%s %s %u",
+                                clp->cl_ipaddr,
+                                rpc_peeraddr2str(clp->cl_rpcclient,
+                                                        RPC_DISPLAY_ADDR),
                                 cred->cr_ops->cr_name,
                                 clp->cl_id_uniquifier);
                 setclientid.sc_netid_len = scnprintf(setclientid.sc_netid,
-                                sizeof(setclientid.sc_netid), "tcp");
+                                sizeof(setclientid.sc_netid),
+                                rpc_peeraddr2str(clp->cl_rpcclient,
+                                                        RPC_DISPLAY_NETID));
                 setclientid.sc_uaddr_len = scnprintf(setclientid.sc_uaddr,
-                                sizeof(setclientid.sc_uaddr), "%s.%d.%d",
+                                sizeof(setclientid.sc_uaddr), "%s.%u.%u",
                                 clp->cl_ipaddr, port >> 8, port & 255);
 
                 status = rpc_call_sync(clp->cl_rpcclient, &msg, 0);