* (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:
return status;
}
+/**
+ * xs_tcp_shutdown - gracefully shut down a TCP socket
+ * @xprt: transport
+ *
+ * Initiates a graceful shutdown of the TCP socket by calling the
+ * equivalent of shutdown(SHUT_WR);
+ */
+static void xs_tcp_shutdown(struct rpc_xprt *xprt)
+{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+ struct socket *sock = transport->sock;
+
+ if (sock != NULL)
+ kernel_sock_shutdown(sock, SHUT_WR);
+}
+
static inline void xs_encode_tcp_record_marker(struct xdr_buf *buf)
{
u32 reclen = buf->len - sizeof(rpc_fraghdr);
default:
dprintk("RPC: sendmsg returned unrecognized error %d\n",
-status);
- xprt_disconnect(xprt);
+ xs_tcp_shutdown(xprt);
break;
}
sock_release(sock);
clear_close_wait:
smp_mb__before_clear_bit();
+ clear_bit(XPRT_CONNECTED, &xprt->state);
clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
+ clear_bit(XPRT_CLOSING, &xprt->state);
smp_mb__after_clear_bit();
}
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)
copied = repsize;
/* Suck it into the iovec, verify checksum if not done by hw. */
- if (csum_partial_copy_to_xdr(&rovr->rq_private_buf, skb))
+ if (csum_partial_copy_to_xdr(&rovr->rq_private_buf, skb)) {
+ UDPX_INC_STATS_BH(sk, UDP_MIB_INERRORS);
goto out_unlock;
+ }
+
+ UDPX_INC_STATS_BH(sk, UDP_MIB_INDATAGRAMS);
/* Something worked... */
dst_confirm(skb->dst);
}
spin_unlock_bh(&xprt->transport_lock);
break;
- case TCP_SYN_SENT:
- case TCP_SYN_RECV:
+ case TCP_FIN_WAIT1:
+ /* The client initiated a shutdown of the socket */
+ set_bit(XPRT_CLOSING, &xprt->state);
+ smp_mb__before_clear_bit();
+ clear_bit(XPRT_CONNECTED, &xprt->state);
+ clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
+ smp_mb__after_clear_bit();
break;
case TCP_CLOSE_WAIT:
- /* Try to schedule an autoclose RPC calls */
- set_bit(XPRT_CLOSE_WAIT, &xprt->state);
- if (test_and_set_bit(XPRT_LOCKED, &xprt->state) == 0)
- queue_work(rpciod_workqueue, &xprt->task_cleanup);
- default:
+ /* The server initiated a shutdown of the socket */
+ set_bit(XPRT_CLOSING, &xprt->state);
+ xprt_force_disconnect(xprt);
+ break;
+ case TCP_LAST_ACK:
+ smp_mb__before_clear_bit();
+ clear_bit(XPRT_CONNECTED, &xprt->state);
+ smp_mb__after_clear_bit();
+ break;
+ case TCP_CLOSE:
+ smp_mb__before_clear_bit();
+ clear_bit(XPRT_CLOSE_WAIT, &xprt->state);
+ clear_bit(XPRT_CLOSING, &xprt->state);
+ smp_mb__after_clear_bit();
+ /* Mark transport as closed and wake up all pending tasks */
xprt_disconnect(xprt);
}
out:
*/
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 int xs_bind(struct sock_xprt *transport, struct socket *sock)
+static unsigned short xs_get_srcport(struct sock_xprt *transport, struct socket *sock)
+{
+ unsigned short port = transport->port;
+
+ if (port == 0 && transport->xprt.resvport)
+ port = xs_get_random_port();
+ return port;
+}
+
+static unsigned short xs_next_srcport(struct sock_xprt *transport, struct socket *sock, unsigned short port)
+{
+ if (transport->port != 0)
+ transport->port = 0;
+ if (!transport->xprt.resvport)
+ return 0;
+ if (port <= xprt_min_resvport || port > xprt_max_resvport)
+ return xprt_max_resvport;
+ return --port;
+}
+
+static int xs_bind4(struct sock_xprt *transport, struct socket *sock)
{
struct sockaddr_in myaddr = {
.sin_family = AF_INET,
};
struct sockaddr_in *sa;
- int err;
- unsigned short port = transport->port;
+ int err, nloop = 0;
+ unsigned short port = xs_get_srcport(transport, sock);
+ unsigned short last;
- if (!transport->xprt.resvport)
- port = 0;
sa = (struct sockaddr_in *)&transport->addr;
myaddr.sin_addr = sa->sin_addr;
do {
myaddr.sin_port = htons(port);
err = kernel_bind(sock, (struct sockaddr *) &myaddr,
sizeof(myaddr));
- if (!transport->xprt.resvport)
+ if (port == 0)
break;
if (err == 0) {
transport->port = port;
break;
}
- if (port <= xprt_min_resvport)
- port = xprt_max_resvport;
- else
- port--;
- } while (err == -EADDRINUSE && port != transport->port);
- dprintk("RPC: xs_bind "NIPQUAD_FMT":%u: %s (%d)\n",
- NIPQUAD(myaddr.sin_addr), port, err ? "failed" : "ok", err);
+ last = port;
+ port = xs_next_srcport(transport, sock, port);
+ if (port > last)
+ nloop++;
+ } while (err == -EADDRINUSE && nloop != 2);
+ dprintk("RPC: %s "NIPQUAD_FMT":%u: %s (%d)\n",
+ __FUNCTION__, NIPQUAD(myaddr.sin_addr),
+ port, err ? "failed" : "ok", err);
+ return err;
+}
+
+static int xs_bind6(struct sock_xprt *transport, struct socket *sock)
+{
+ struct sockaddr_in6 myaddr = {
+ .sin6_family = AF_INET6,
+ };
+ struct sockaddr_in6 *sa;
+ int err, nloop = 0;
+ unsigned short port = xs_get_srcport(transport, sock);
+ unsigned short last;
+
+ sa = (struct sockaddr_in6 *)&transport->addr;
+ myaddr.sin6_addr = sa->sin6_addr;
+ do {
+ myaddr.sin6_port = htons(port);
+ err = kernel_bind(sock, (struct sockaddr *) &myaddr,
+ sizeof(myaddr));
+ if (port == 0)
+ break;
+ if (err == 0) {
+ transport->port = port;
+ break;
+ }
+ last = port;
+ port = xs_next_srcport(transport, sock, port);
+ if (port > last)
+ nloop++;
+ } while (err == -EADDRINUSE && nloop != 2);
+ dprintk("RPC: xs_bind6 "NIP6_FMT":%u: %s (%d)\n",
+ NIP6(myaddr.sin6_addr), port, err ? "failed" : "ok", err);
return err;
}
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
+static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
+{
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
+
+ if (!transport->inet) {
+ struct sock *sk = sock->sk;
+
+ write_lock_bh(&sk->sk_callback_lock);
+
+ sk->sk_user_data = xprt;
+ transport->old_data_ready = sk->sk_data_ready;
+ transport->old_state_change = sk->sk_state_change;
+ transport->old_write_space = sk->sk_write_space;
+ sk->sk_data_ready = xs_udp_data_ready;
+ sk->sk_write_space = xs_udp_write_space;
+ sk->sk_no_check = UDP_CSUM_NORCV;
+ sk->sk_allocation = GFP_ATOMIC;
+
+ xprt_set_connected(xprt);
+
+ /* Reset to new socket */
+ transport->sock = sock;
+ transport->inet = sk;
+
+ write_unlock_bh(&sk->sk_callback_lock);
+ }
+ xs_udp_do_set_buffer_size(xprt);
+}
+
/**
- * xs_udp_connect_worker - set up a UDP socket
+ * xs_udp_connect_worker4 - set up a UDP socket
* @work: RPC transport to connect
*
* Invoked by a work queue tasklet.
*/
-static void xs_udp_connect_worker(struct work_struct *work)
+static void xs_udp_connect_worker4(struct work_struct *work)
{
struct sock_xprt *transport =
container_of(work, struct sock_xprt, connect_worker.work);
dprintk("RPC: can't create UDP transport socket (%d).\n", -err);
goto out;
}
- xs_reclassify_socket(sock);
+ xs_reclassify_socket4(sock);
- if (xs_bind(transport, sock)) {
+ if (xs_bind4(transport, sock)) {
sock_release(sock);
goto out;
}
dprintk("RPC: worker connecting xprt %p to address: %s\n",
xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
- if (!transport->inet) {
- struct sock *sk = sock->sk;
+ xs_udp_finish_connecting(xprt, sock);
+ status = 0;
+out:
+ xprt_wake_pending_tasks(xprt, status);
+ xprt_clear_connecting(xprt);
+}
- write_lock_bh(&sk->sk_callback_lock);
+/**
+ * xs_udp_connect_worker6 - set up a UDP socket
+ * @work: RPC transport to connect
+ *
+ * Invoked by a work queue tasklet.
+ */
+static void xs_udp_connect_worker6(struct work_struct *work)
+{
+ struct sock_xprt *transport =
+ container_of(work, struct sock_xprt, connect_worker.work);
+ struct rpc_xprt *xprt = &transport->xprt;
+ struct socket *sock = transport->sock;
+ int err, status = -EIO;
- sk->sk_user_data = xprt;
- transport->old_data_ready = sk->sk_data_ready;
- transport->old_state_change = sk->sk_state_change;
- transport->old_write_space = sk->sk_write_space;
- sk->sk_data_ready = xs_udp_data_ready;
- sk->sk_write_space = xs_udp_write_space;
- sk->sk_no_check = UDP_CSUM_NORCV;
- sk->sk_allocation = GFP_ATOMIC;
+ if (xprt->shutdown || !xprt_bound(xprt))
+ goto out;
- xprt_set_connected(xprt);
+ /* Start by resetting any existing state */
+ xs_close(xprt);
- /* Reset to new socket */
- transport->sock = sock;
- transport->inet = sk;
+ if ((err = sock_create_kern(PF_INET6, SOCK_DGRAM, IPPROTO_UDP, &sock)) < 0) {
+ dprintk("RPC: can't create UDP transport socket (%d).\n", -err);
+ goto out;
+ }
+ xs_reclassify_socket6(sock);
- write_unlock_bh(&sk->sk_callback_lock);
+ if (xs_bind6(transport, sock) < 0) {
+ sock_release(sock);
+ goto out;
}
- xs_udp_do_set_buffer_size(xprt);
+
+ dprintk("RPC: worker connecting xprt %p to address: %s\n",
+ xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
+
+ xs_udp_finish_connecting(xprt, sock);
status = 0;
out:
xprt_wake_pending_tasks(xprt, status);
result);
}
-/**
- * xs_tcp_connect_worker - connect a TCP socket to a remote endpoint
- * @work: RPC transport to connect
- *
- * Invoked by a work queue tasklet.
- */
-static void xs_tcp_connect_worker(struct work_struct *work)
+static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
{
- struct sock_xprt *transport =
- container_of(work, struct sock_xprt, connect_worker.work);
- struct rpc_xprt *xprt = &transport->xprt;
- struct socket *sock = transport->sock;
- int err, status = -EIO;
-
- if (xprt->shutdown || !xprt_bound(xprt))
- goto out;
-
- if (!sock) {
- /* start from scratch */
- if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
- dprintk("RPC: can't create TCP transport "
- "socket (%d).\n", -err);
- goto out;
- }
- xs_reclassify_socket(sock);
-
- if (xs_bind(transport, sock)) {
- sock_release(sock);
- goto out;
- }
- } else
- /* "close" the socket, preserving the local port */
- xs_tcp_reuse_connection(xprt);
-
- dprintk("RPC: worker connecting xprt %p to address: %s\n",
- xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
+ struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (!transport->inet) {
struct sock *sk = sock->sk;
/* Tell the socket layer to start connecting... */
xprt->stat.connect_count++;
xprt->stat.connect_start = jiffies;
- status = kernel_connect(sock, (struct sockaddr *) &xprt->addr,
- xprt->addrlen, O_NONBLOCK);
+ return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK);
+}
+
+/**
+ * xs_tcp_connect_worker4 - connect a TCP socket to a remote endpoint
+ * @work: RPC transport to connect
+ *
+ * Invoked by a work queue tasklet.
+ */
+static void xs_tcp_connect_worker4(struct work_struct *work)
+{
+ struct sock_xprt *transport =
+ container_of(work, struct sock_xprt, connect_worker.work);
+ struct rpc_xprt *xprt = &transport->xprt;
+ struct socket *sock = transport->sock;
+ int err, status = -EIO;
+
+ if (xprt->shutdown || !xprt_bound(xprt))
+ goto out;
+
+ if (!sock) {
+ /* start from scratch */
+ if ((err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
+ dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
+ goto out;
+ }
+ xs_reclassify_socket4(sock);
+
+ if (xs_bind4(transport, sock) < 0) {
+ sock_release(sock);
+ goto out;
+ }
+ } else
+ /* "close" the socket, preserving the local port */
+ xs_tcp_reuse_connection(xprt);
+
+ dprintk("RPC: worker connecting xprt %p to address: %s\n",
+ xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
+
+ status = xs_tcp_finish_connecting(xprt, sock);
dprintk("RPC: %p connect status %d connected %d sock state %d\n",
xprt, -status, xprt_connected(xprt),
sock->sk->sk_state);
break;
default:
/* get rid of existing socket, and retry */
- xs_close(xprt);
+ xs_tcp_shutdown(xprt);
+ }
+ }
+out:
+ xprt_wake_pending_tasks(xprt, status);
+out_clear:
+ xprt_clear_connecting(xprt);
+}
+
+/**
+ * xs_tcp_connect_worker6 - connect a TCP socket to a remote endpoint
+ * @work: RPC transport to connect
+ *
+ * Invoked by a work queue tasklet.
+ */
+static void xs_tcp_connect_worker6(struct work_struct *work)
+{
+ struct sock_xprt *transport =
+ container_of(work, struct sock_xprt, connect_worker.work);
+ struct rpc_xprt *xprt = &transport->xprt;
+ struct socket *sock = transport->sock;
+ int err, status = -EIO;
+
+ if (xprt->shutdown || !xprt_bound(xprt))
+ goto out;
+
+ if (!sock) {
+ /* start from scratch */
+ if ((err = sock_create_kern(PF_INET6, SOCK_STREAM, IPPROTO_TCP, &sock)) < 0) {
+ dprintk("RPC: can't create TCP transport socket (%d).\n", -err);
+ goto out;
+ }
+ xs_reclassify_socket6(sock);
+
+ if (xs_bind6(transport, sock) < 0) {
+ sock_release(sock);
+ goto out;
+ }
+ } else
+ /* "close" the socket, preserving the local port */
+ xs_tcp_reuse_connection(xprt);
+
+ dprintk("RPC: worker connecting xprt %p to address: %s\n",
+ xprt, xprt->address_strings[RPC_DISPLAY_ALL]);
+
+ status = xs_tcp_finish_connecting(xprt, sock);
+ dprintk("RPC: %p connect status %d connected %d sock state %d\n",
+ xprt, -status, xprt_connected(xprt), sock->sk->sk_state);
+ if (status < 0) {
+ switch (status) {
+ case -EINPROGRESS:
+ case -EALREADY:
+ goto out_clear;
+ case -ECONNREFUSED:
+ case -ECONNRESET:
+ /* retry with existing socket, after a delay */
break;
+ default:
+ /* get rid of existing socket, and retry */
+ xs_tcp_shutdown(xprt);
}
}
out:
}
}
+static void xs_tcp_connect(struct rpc_task *task)
+{
+ struct rpc_xprt *xprt = task->tk_xprt;
+
+ /* Initiate graceful shutdown of the socket if not already done */
+ if (test_bit(XPRT_CONNECTED, &xprt->state))
+ xs_tcp_shutdown(xprt);
+ /* Exit if we need to wait for socket shutdown to complete */
+ if (test_bit(XPRT_CLOSING, &xprt->state))
+ return;
+ xs_connect(task);
+}
+
/**
* xs_udp_print_stats - display UDP socket-specifc stats
* @xprt: rpc_xprt struct containing statistics
.release_xprt = xs_tcp_release_xprt,
.rpcbind = rpcb_getport_async,
.set_port = xs_set_port,
- .connect = xs_connect,
+ .connect = xs_tcp_connect,
.buf_alloc = rpc_malloc,
.buf_free = rpc_free,
.send_request = xs_tcp_send_request,
.set_retrans_timeout = xprt_set_retrans_timeout_def,
- .close = xs_close,
+ .close = xs_tcp_shutdown,
.destroy = xs_destroy,
.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;
xprt->addrlen = args->addrlen;
if (args->srcaddr)
memcpy(&new->addr, args->srcaddr, args->addrlen);
- new->port = xs_get_random_port();
return xprt;
}
* @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_worker);
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_worker);
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);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff