* (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>
#include <linux/slab.h>
+#include <linux/module.h>
#include <linux/capability.h>
#include <linux/pagemap.h>
#include <linux/errno.h>
#include <linux/tcp.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/sched.h>
+#include <linux/sunrpc/xprtsock.h>
#include <linux/file.h>
#include <net/sock.h>
#define TCP_RCV_COPY_XID (1UL << 2)
#define TCP_RCV_COPY_DATA (1UL << 3)
+static inline struct sockaddr *xs_addr(struct rpc_xprt *xprt)
+{
+ return (struct sockaddr *) &xprt->addr;
+}
+
+static inline struct sockaddr_in *xs_addr_in(struct rpc_xprt *xprt)
+{
+ return (struct sockaddr_in *) &xprt->addr;
+}
+
+static inline struct sockaddr_in6 *xs_addr_in6(struct rpc_xprt *xprt)
+{
+ return (struct sockaddr_in6 *) &xprt->addr;
+}
+
static void xs_format_ipv4_peer_addresses(struct rpc_xprt *xprt)
{
- struct sockaddr_in *addr = (struct sockaddr_in *) &xprt->addr;
+ struct sockaddr_in *addr = xs_addr_in(xprt);
char *buf;
buf = kzalloc(20, GFP_KERNEL);
ntohs(addr->sin_port));
}
xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf;
+
+ buf = kzalloc(30, GFP_KERNEL);
+ if (buf) {
+ snprintf(buf, 30, NIPQUAD_FMT".%u.%u",
+ NIPQUAD(addr->sin_addr.s_addr),
+ ntohs(addr->sin_port) >> 8,
+ ntohs(addr->sin_port) & 0xff);
+ }
+ xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf;
+
+ xprt->address_strings[RPC_DISPLAY_NETID] =
+ kstrdup(xprt->prot == IPPROTO_UDP ?
+ RPCBIND_NETID_UDP : RPCBIND_NETID_TCP, GFP_KERNEL);
}
static void xs_format_ipv6_peer_addresses(struct rpc_xprt *xprt)
{
- struct sockaddr_in6 *addr = (struct sockaddr_in6 *) &xprt->addr;
+ struct sockaddr_in6 *addr = xs_addr_in6(xprt);
char *buf;
buf = kzalloc(40, GFP_KERNEL);
ntohs(addr->sin6_port));
}
xprt->address_strings[RPC_DISPLAY_HEX_PORT] = buf;
+
+ buf = kzalloc(50, GFP_KERNEL);
+ if (buf) {
+ snprintf(buf, 50, NIP6_FMT".%u.%u",
+ NIP6(addr->sin6_addr),
+ ntohs(addr->sin6_port) >> 8,
+ ntohs(addr->sin6_port) & 0xff);
+ }
+ xprt->address_strings[RPC_DISPLAY_UNIVERSAL_ADDR] = buf;
+
+ xprt->address_strings[RPC_DISPLAY_NETID] =
+ kstrdup(xprt->prot == IPPROTO_UDP ?
+ RPCBIND_NETID_UDP6 : RPCBIND_NETID_TCP6, GFP_KERNEL);
}
static void xs_free_peer_addresses(struct rpc_xprt *xprt)
req->rq_xtime = jiffies;
status = xs_sendpages(transport->sock,
- (struct sockaddr *) &xprt->addr,
+ xs_addr(xprt),
xprt->addrlen, xdr,
req->rq_bytes_sent);
dprintk("RPC: xs_udp_send_request(%u) = %d\n",
xdr->len - req->rq_bytes_sent, status);
- if (likely(status >= (int) req->rq_slen))
- return 0;
-
- /* Still some bytes left; set up for a retry later. */
- if (status > 0)
+ if (status >= 0) {
+ task->tk_bytes_sent += status;
+ if (status >= req->rq_slen)
+ return 0;
+ /* Still some bytes left; set up for a retry later. */
status = -EAGAIN;
+ }
switch (status) {
case -ENETUNREACH:
xs_free_peer_addresses(xprt);
kfree(xprt->slot);
kfree(xprt);
+ module_put(THIS_MODULE);
}
static inline struct rpc_xprt *xprt_from_sock(struct sock *sk)
*/
static void xs_set_port(struct rpc_xprt *xprt, unsigned short port)
{
- struct sockaddr *addr = (struct sockaddr *) &xprt->addr;
+ struct sockaddr *addr = xs_addr(xprt);
dprintk("RPC: setting port for xprt %p to %u\n", xprt, port);
static struct lock_class_key xs_key[2];
static struct lock_class_key xs_slock_key[2];
-static inline void xs_reclassify_socket(struct socket *sock)
+static inline void xs_reclassify_socket4(struct socket *sock)
{
struct sock *sk = sock->sk;
- BUG_ON(sk->sk_lock.owner != NULL);
- switch (sk->sk_family) {
- case AF_INET:
- sock_lock_init_class_and_name(sk, "slock-AF_INET-NFS",
- &xs_slock_key[0], "sk_lock-AF_INET-NFS", &xs_key[0]);
- break;
- case AF_INET6:
- sock_lock_init_class_and_name(sk, "slock-AF_INET6-NFS",
- &xs_slock_key[1], "sk_lock-AF_INET6-NFS", &xs_key[1]);
- break;
+ BUG_ON(sock_owned_by_user(sk));
+ sock_lock_init_class_and_name(sk, "slock-AF_INET-RPC",
+ &xs_slock_key[0], "sk_lock-AF_INET-RPC", &xs_key[0]);
+}
- default:
- BUG();
- }
+static inline void xs_reclassify_socket6(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ BUG_ON(sock_owned_by_user(sk));
+ sock_lock_init_class_and_name(sk, "slock-AF_INET6-RPC",
+ &xs_slock_key[1], "sk_lock-AF_INET6-RPC", &xs_key[1]);
}
#else
-static inline void xs_reclassify_socket(struct socket *sock)
+static inline void xs_reclassify_socket4(struct socket *sock)
+{
+}
+
+static inline void xs_reclassify_socket6(struct socket *sock)
{
}
#endif
dprintk("RPC: can't create UDP transport socket (%d).\n", -err);
goto out;
}
- xs_reclassify_socket(sock);
+ xs_reclassify_socket4(sock);
if (xs_bind4(transport, sock)) {
sock_release(sock);
dprintk("RPC: can't create UDP transport socket (%d).\n", -err);
goto out;
}
- xs_reclassify_socket(sock);
+ xs_reclassify_socket6(sock);
if (xs_bind6(transport, sock) < 0) {
sock_release(sock);
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
xprt->stat.connect_start = jiffies;
- return kernel_connect(sock, (struct sockaddr *) &xprt->addr,
- xprt->addrlen, O_NONBLOCK);
+ return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK);
}
/**
dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
goto out;
}
- xs_reclassify_socket(sock);
+ xs_reclassify_socket4(sock);
if (xs_bind4(transport, sock) < 0) {
sock_release(sock);
dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
goto out;
}
- xs_reclassify_socket(sock);
+ xs_reclassify_socket6(sock);
if (xs_bind6(transport, sock) < 0) {
sock_release(sock);
.print_stats = xs_tcp_print_stats,
};
-static struct rpc_xprt *xs_setup_xprt(struct rpc_xprtsock_create *args, unsigned int slot_table_size)
+static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args,
+ unsigned int slot_table_size)
{
struct rpc_xprt *xprt;
struct sock_xprt *new;
* @args: rpc transport creation arguments
*
*/
-struct rpc_xprt *xs_setup_udp(struct rpc_xprtsock_create *args)
+static struct rpc_xprt *xs_setup_udp(struct xprt_create *args)
{
+ struct sockaddr *addr = args->dstaddr;
struct rpc_xprt *xprt;
struct sock_xprt *transport;
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;
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]);
- return xprt;
+ if (try_module_get(THIS_MODULE))
+ return xprt;
+
+ kfree(xprt->slot);
+ kfree(xprt);
+ return ERR_PTR(-EINVAL);
}
/**
* @args: rpc transport creation arguments
*
*/
-struct rpc_xprt *xs_setup_tcp(struct rpc_xprtsock_create *args)
+static struct rpc_xprt *xs_setup_tcp(struct xprt_create *args)
{
+ struct sockaddr *addr = args->dstaddr;
struct rpc_xprt *xprt;
struct sock_xprt *transport;
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;
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]);
- return xprt;
+ if (try_module_get(THIS_MODULE))
+ return xprt;
+
+ kfree(xprt->slot);
+ kfree(xprt);
+ return ERR_PTR(-EINVAL);
}
+static struct xprt_class xs_udp_transport = {
+ .list = LIST_HEAD_INIT(xs_udp_transport.list),
+ .name = "udp",
+ .owner = THIS_MODULE,
+ .ident = IPPROTO_UDP,
+ .setup = xs_setup_udp,
+};
+
+static struct xprt_class xs_tcp_transport = {
+ .list = LIST_HEAD_INIT(xs_tcp_transport.list),
+ .name = "tcp",
+ .owner = THIS_MODULE,
+ .ident = IPPROTO_TCP,
+ .setup = xs_setup_tcp,
+};
+
/**
- * init_socket_xprt - set up xprtsock's sysctls
+ * init_socket_xprt - set up xprtsock's sysctls, register with RPC client
*
*/
int init_socket_xprt(void)
sunrpc_table_header = register_sysctl_table(sunrpc_table);
#endif
+ xprt_register_transport(&xs_udp_transport);
+ xprt_register_transport(&xs_tcp_transport);
+
return 0;
}
/**
- * cleanup_socket_xprt - remove xprtsock's sysctls
+ * cleanup_socket_xprt - remove xprtsock's sysctls, unregister
*
*/
void cleanup_socket_xprt(void)
sunrpc_table_header = NULL;
}
#endif
+
+ xprt_unregister_transport(&xs_udp_transport);
+ xprt_unregister_transport(&xs_tcp_transport);
}
projects / mv-sheeva.git / blobdiff