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SUNRPC: Add IPv6 address support to net/sunrpc/xprtsock.c 

Finalize support for setting up RPC client transports to remote RPC
services addressed via IPv6.

Based on work done by Gilles Quillard at Bull Open Source.

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>
This commit is contained in:
Chuck Lever 2007-08-06 11:57:53 -04:00 committed by Trond Myklebust
parent 68e220bd5c
commit 8f9d5b1a2e
1 changed files with 47 additions and 10 deletions
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57
net/sunrpc/xprtsock.c
View File

@ -13,6 +13,9 @@
* (C) 1999 Trond Myklebust <trond.myklebust@fys.uio.no>
*
* IP socket transport implementation, (C) 2005 Chuck Lever <cel@netapp.com>
*
* IPv6 support contributed by Gilles Quillard, Bull Open Source, 2005.
* <gilles.quillard@bull.net>
*/
#include <linux/types.h>
@ -1780,6 +1783,7 @@ static struct rpc_xprt *xs_setup_xprt(struct rpc_xprtsock_create *args, unsigned
*/
struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args)
{
struct sockaddr *addr = args->dstaddr;
struct rpc_xprt *xprt;
struct sock_xprt *transport;
@ -1788,15 +1792,11 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args)
return xprt;
transport = container_of(xprt, struct sock_xprt, xprt);
if (ntohs(((struct sockaddr_in *)args->dstaddr)->sin_port) != 0)
xprt_set_bound(xprt);
xprt->prot = IPPROTO_UDP;
xprt->tsh_size = 0;
/* XXX: header size can vary due to auth type, IPv6, etc. */
xprt->max_payload = (1U << 16) - (MAX_HEADER << 3);
INIT_DELAYED_WORK(&transport->connect_worker, xs_udp_connect_worker4);
xprt->bind_timeout = XS_BIND_TO;
xprt->connect_timeout = XS_UDP_CONN_TO;
xprt->reestablish_timeout = XS_UDP_REEST_TO;
@ -1809,7 +1809,28 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args)
else
xprt_set_timeout(&xprt->timeout, 5, 5 * HZ);
xs_format_ipv4_peer_addresses(xprt);
switch (addr->sa_family) {
case AF_INET:
if (((struct sockaddr_in *)addr)->sin_port != htons(0))
xprt_set_bound(xprt);
INIT_DELAYED_WORK(&transport->connect_worker,
xs_udp_connect_worker4);
xs_format_ipv4_peer_addresses(xprt);
break;
case AF_INET6:
if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0))
xprt_set_bound(xprt);
INIT_DELAYED_WORK(&transport->connect_worker,
xs_udp_connect_worker6);
xs_format_ipv6_peer_addresses(xprt);
break;
default:
kfree(xprt);
return ERR_PTR(-EAFNOSUPPORT);
}
dprintk("RPC: set up transport to address %s\n",
xprt->address_strings[RPC_DISPLAY_ALL]);
@ -1823,6 +1844,7 @@ struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args)
*/
struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args)
{
struct sockaddr *addr = args->dstaddr;
struct rpc_xprt *xprt;
struct sock_xprt *transport;
@ -1831,14 +1853,10 @@ struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args)
return xprt;
transport = container_of(xprt, struct sock_xprt, xprt);
if (ntohs(((struct sockaddr_in *)args->dstaddr)->sin_port) != 0)
xprt_set_bound(xprt);
xprt->prot = IPPROTO_TCP;
xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32);
xprt->max_payload = RPC_MAX_FRAGMENT_SIZE;
INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker4);
xprt->bind_timeout = XS_BIND_TO;
xprt->connect_timeout = XS_TCP_CONN_TO;
xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
@ -1851,7 +1869,26 @@ struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args)
else
xprt_set_timeout(&xprt->timeout, 2, 60 * HZ);
xs_format_ipv4_peer_addresses(xprt);
switch (addr->sa_family) {
case AF_INET:
if (((struct sockaddr_in *)addr)->sin_port != htons(0))
xprt_set_bound(xprt);
INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker4);
xs_format_ipv4_peer_addresses(xprt);
break;
case AF_INET6:
if (((struct sockaddr_in6 *)addr)->sin6_port != htons(0))
xprt_set_bound(xprt);
INIT_DELAYED_WORK(&transport->connect_worker, xs_tcp_connect_worker6);
xs_format_ipv6_peer_addresses(xprt);
break;
default:
kfree(xprt);
return ERR_PTR(-EAFNOSUPPORT);
}
dprintk("RPC: set up transport to address %s\n",
xprt->address_strings[RPC_DISPLAY_ALL]);