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-rw-r--r--net/rxrpc/af_rxrpc.c754
1 files changed, 754 insertions, 0 deletions
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
new file mode 100644
index 000000000000..bfa8822e2286
--- /dev/null
+++ b/net/rxrpc/af_rxrpc.c
@@ -0,0 +1,754 @@
+/* AF_RXRPC implementation
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/net.h>
+#include <linux/skbuff.h>
+#include <linux/poll.h>
+#include <linux/proc_fs.h>
+#include <net/sock.h>
+#include <net/af_rxrpc.h>
+#include "ar-internal.h"
+
+MODULE_DESCRIPTION("RxRPC network protocol");
+MODULE_AUTHOR("Red Hat, Inc.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NETPROTO(PF_RXRPC);
+
+unsigned rxrpc_debug; // = RXRPC_DEBUG_KPROTO;
+module_param_named(debug, rxrpc_debug, uint, S_IWUSR | S_IRUGO);
+MODULE_PARM_DESC(rxrpc_debug, "RxRPC debugging mask");
+
+static int sysctl_rxrpc_max_qlen __read_mostly = 10;
+
+static struct proto rxrpc_proto;
+static const struct proto_ops rxrpc_rpc_ops;
+
+/* local epoch for detecting local-end reset */
+__be32 rxrpc_epoch;
+
+/* current debugging ID */
+atomic_t rxrpc_debug_id;
+
+/* count of skbs currently in use */
+atomic_t rxrpc_n_skbs;
+
+static void rxrpc_sock_destructor(struct sock *);
+
+/*
+ * see if an RxRPC socket is currently writable
+ */
+static inline int rxrpc_writable(struct sock *sk)
+{
+ return atomic_read(&sk->sk_wmem_alloc) < (size_t) sk->sk_sndbuf;
+}
+
+/*
+ * wait for write bufferage to become available
+ */
+static void rxrpc_write_space(struct sock *sk)
+{
+ _enter("%p", sk);
+ read_lock(&sk->sk_callback_lock);
+ if (rxrpc_writable(sk)) {
+ if (sk->sk_sleep && waitqueue_active(sk->sk_sleep))
+ wake_up_interruptible(sk->sk_sleep);
+ sk_wake_async(sk, 2, POLL_OUT);
+ }
+ read_unlock(&sk->sk_callback_lock);
+}
+
+/*
+ * validate an RxRPC address
+ */
+static int rxrpc_validate_address(struct rxrpc_sock *rx,
+ struct sockaddr_rxrpc *srx,
+ int len)
+{
+ if (len < sizeof(struct sockaddr_rxrpc))
+ return -EINVAL;
+
+ if (srx->srx_family != AF_RXRPC)
+ return -EAFNOSUPPORT;
+
+ if (srx->transport_type != SOCK_DGRAM)
+ return -ESOCKTNOSUPPORT;
+
+ len -= offsetof(struct sockaddr_rxrpc, transport);
+ if (srx->transport_len < sizeof(sa_family_t) ||
+ srx->transport_len > len)
+ return -EINVAL;
+
+ if (srx->transport.family != rx->proto)
+ return -EAFNOSUPPORT;
+
+ switch (srx->transport.family) {
+ case AF_INET:
+ _debug("INET: %x @ %u.%u.%u.%u",
+ ntohs(srx->transport.sin.sin_port),
+ NIPQUAD(srx->transport.sin.sin_addr));
+ if (srx->transport_len > 8)
+ memset((void *)&srx->transport + 8, 0,
+ srx->transport_len - 8);
+ break;
+
+ case AF_INET6:
+ default:
+ return -EAFNOSUPPORT;
+ }
+
+ return 0;
+}
+
+/*
+ * bind a local address to an RxRPC socket
+ */
+static int rxrpc_bind(struct socket *sock, struct sockaddr *saddr, int len)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) saddr;
+ struct sock *sk = sock->sk;
+ struct rxrpc_local *local;
+ struct rxrpc_sock *rx = rxrpc_sk(sk), *prx;
+ __be16 service_id;
+ int ret;
+
+ _enter("%p,%p,%d", rx, saddr, len);
+
+ ret = rxrpc_validate_address(rx, srx, len);
+ if (ret < 0)
+ goto error;
+
+ lock_sock(&rx->sk);
+
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED) {
+ ret = -EINVAL;
+ goto error_unlock;
+ }
+
+ memcpy(&rx->srx, srx, sizeof(rx->srx));
+
+ /* find a local transport endpoint if we don't have one already */
+ local = rxrpc_lookup_local(&rx->srx);
+ if (IS_ERR(local)) {
+ ret = PTR_ERR(local);
+ goto error_unlock;
+ }
+
+ rx->local = local;
+ if (srx->srx_service) {
+ service_id = htons(srx->srx_service);
+ write_lock_bh(&local->services_lock);
+ list_for_each_entry(prx, &local->services, listen_link) {
+ if (prx->service_id == service_id)
+ goto service_in_use;
+ }
+
+ rx->service_id = service_id;
+ list_add_tail(&rx->listen_link, &local->services);
+ write_unlock_bh(&local->services_lock);
+
+ rx->sk.sk_state = RXRPC_SERVER_BOUND;
+ } else {
+ rx->sk.sk_state = RXRPC_CLIENT_BOUND;
+ }
+
+ release_sock(&rx->sk);
+ _leave(" = 0");
+ return 0;
+
+service_in_use:
+ ret = -EADDRINUSE;
+ write_unlock_bh(&local->services_lock);
+error_unlock:
+ release_sock(&rx->sk);
+error:
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * set the number of pending calls permitted on a listening socket
+ */
+static int rxrpc_listen(struct socket *sock, int backlog)
+{
+ struct sock *sk = sock->sk;
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+ int ret;
+
+ _enter("%p,%d", rx, backlog);
+
+ lock_sock(&rx->sk);
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_UNCONNECTED:
+ ret = -EADDRNOTAVAIL;
+ break;
+ case RXRPC_CLIENT_BOUND:
+ case RXRPC_CLIENT_CONNECTED:
+ default:
+ ret = -EBUSY;
+ break;
+ case RXRPC_SERVER_BOUND:
+ ASSERT(rx->local != NULL);
+ sk->sk_max_ack_backlog = backlog;
+ rx->sk.sk_state = RXRPC_SERVER_LISTENING;
+ ret = 0;
+ break;
+ }
+
+ release_sock(&rx->sk);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * find a transport by address
+ */
+static struct rxrpc_transport *rxrpc_name_to_transport(struct socket *sock,
+ struct sockaddr *addr,
+ int addr_len, int flags)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) addr;
+ struct rxrpc_transport *trans;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ struct rxrpc_peer *peer;
+
+ _enter("%p,%p,%d,%d", rx, addr, addr_len, flags);
+
+ ASSERT(rx->local != NULL);
+ ASSERT(rx->sk.sk_state > RXRPC_UNCONNECTED);
+
+ if (rx->srx.transport_type != srx->transport_type)
+ return ERR_PTR(-ESOCKTNOSUPPORT);
+ if (rx->srx.transport.family != srx->transport.family)
+ return ERR_PTR(-EAFNOSUPPORT);
+
+ /* find a remote transport endpoint from the local one */
+ peer = rxrpc_get_peer(srx, GFP_KERNEL);
+ if (IS_ERR(peer))
+ return ERR_PTR(PTR_ERR(peer));
+
+ /* find a transport */
+ trans = rxrpc_get_transport(rx->local, peer, GFP_KERNEL);
+ rxrpc_put_peer(peer);
+ _leave(" = %p", trans);
+ return trans;
+}
+
+/*
+ * connect an RxRPC socket
+ * - this just targets it at a specific destination; no actual connection
+ * negotiation takes place
+ */
+static int rxrpc_connect(struct socket *sock, struct sockaddr *addr,
+ int addr_len, int flags)
+{
+ struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *) addr;
+ struct sock *sk = sock->sk;
+ struct rxrpc_transport *trans;
+ struct rxrpc_local *local;
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+ int ret;
+
+ _enter("%p,%p,%d,%d", rx, addr, addr_len, flags);
+
+ ret = rxrpc_validate_address(rx, srx, addr_len);
+ if (ret < 0) {
+ _leave(" = %d [bad addr]", ret);
+ return ret;
+ }
+
+ lock_sock(&rx->sk);
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_UNCONNECTED:
+ /* find a local transport endpoint if we don't have one already */
+ ASSERTCMP(rx->local, ==, NULL);
+ rx->srx.srx_family = AF_RXRPC;
+ rx->srx.srx_service = 0;
+ rx->srx.transport_type = srx->transport_type;
+ rx->srx.transport_len = sizeof(sa_family_t);
+ rx->srx.transport.family = srx->transport.family;
+ local = rxrpc_lookup_local(&rx->srx);
+ if (IS_ERR(local)) {
+ release_sock(&rx->sk);
+ return PTR_ERR(local);
+ }
+ rx->local = local;
+ rx->sk.sk_state = RXRPC_CLIENT_BOUND;
+ case RXRPC_CLIENT_BOUND:
+ break;
+ case RXRPC_CLIENT_CONNECTED:
+ release_sock(&rx->sk);
+ return -EISCONN;
+ default:
+ release_sock(&rx->sk);
+ return -EBUSY; /* server sockets can't connect as well */
+ }
+
+ trans = rxrpc_name_to_transport(sock, addr, addr_len, flags);
+ if (IS_ERR(trans)) {
+ release_sock(&rx->sk);
+ _leave(" = %ld", PTR_ERR(trans));
+ return PTR_ERR(trans);
+ }
+
+ rx->trans = trans;
+ rx->service_id = htons(srx->srx_service);
+ rx->sk.sk_state = RXRPC_CLIENT_CONNECTED;
+
+ release_sock(&rx->sk);
+ return 0;
+}
+
+/*
+ * send a message through an RxRPC socket
+ * - in a client this does a number of things:
+ * - finds/sets up a connection for the security specified (if any)
+ * - initiates a call (ID in control data)
+ * - ends the request phase of a call (if MSG_MORE is not set)
+ * - sends a call data packet
+ * - may send an abort (abort code in control data)
+ */
+static int rxrpc_sendmsg(struct kiocb *iocb, struct socket *sock,
+ struct msghdr *m, size_t len)
+{
+ struct rxrpc_transport *trans;
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ int ret;
+
+ _enter(",{%d},,%zu", rx->sk.sk_state, len);
+
+ if (m->msg_flags & MSG_OOB)
+ return -EOPNOTSUPP;
+
+ if (m->msg_name) {
+ ret = rxrpc_validate_address(rx, m->msg_name, m->msg_namelen);
+ if (ret < 0) {
+ _leave(" = %d [bad addr]", ret);
+ return ret;
+ }
+ }
+
+ trans = NULL;
+ lock_sock(&rx->sk);
+
+ if (m->msg_name) {
+ ret = -EISCONN;
+ trans = rxrpc_name_to_transport(sock, m->msg_name,
+ m->msg_namelen, 0);
+ if (IS_ERR(trans)) {
+ ret = PTR_ERR(trans);
+ trans = NULL;
+ goto out;
+ }
+ } else {
+ trans = rx->trans;
+ if (trans)
+ atomic_inc(&trans->usage);
+ }
+
+ switch (rx->sk.sk_state) {
+ case RXRPC_SERVER_LISTENING:
+ if (!m->msg_name) {
+ ret = rxrpc_server_sendmsg(iocb, rx, m, len);
+ break;
+ }
+ case RXRPC_SERVER_BOUND:
+ case RXRPC_CLIENT_BOUND:
+ if (!m->msg_name) {
+ ret = -ENOTCONN;
+ break;
+ }
+ case RXRPC_CLIENT_CONNECTED:
+ ret = rxrpc_client_sendmsg(iocb, rx, trans, m, len);
+ break;
+ default:
+ ret = -ENOTCONN;
+ break;
+ }
+
+out:
+ release_sock(&rx->sk);
+ if (trans)
+ rxrpc_put_transport(trans);
+ _leave(" = %d", ret);
+ return ret;
+}
+
+/*
+ * set RxRPC socket options
+ */
+static int rxrpc_setsockopt(struct socket *sock, int level, int optname,
+ char __user *optval, int optlen)
+{
+ struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
+ unsigned min_sec_level;
+ int ret;
+
+ _enter(",%d,%d,,%d", level, optname, optlen);
+
+ lock_sock(&rx->sk);
+ ret = -EOPNOTSUPP;
+
+ if (level == SOL_RXRPC) {
+ switch (optname) {
+ case RXRPC_EXCLUSIVE_CONNECTION:
+ ret = -EINVAL;
+ if (optlen != 0)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ set_bit(RXRPC_SOCK_EXCLUSIVE_CONN, &rx->flags);
+ goto success;
+
+ case RXRPC_SECURITY_KEY:
+ ret = -EINVAL;
+ if (rx->key)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = rxrpc_request_key(rx, optval, optlen);
+ goto error;
+
+ case RXRPC_SECURITY_KEYRING:
+ ret = -EINVAL;
+ if (rx->key)
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = rxrpc_server_keyring(rx, optval, optlen);
+ goto error;
+
+ case RXRPC_MIN_SECURITY_LEVEL:
+ ret = -EINVAL;
+ if (optlen != sizeof(unsigned))
+ goto error;
+ ret = -EISCONN;
+ if (rx->sk.sk_state != RXRPC_UNCONNECTED)
+ goto error;
+ ret = get_user(min_sec_level,
+ (unsigned __user *) optval);
+ if (ret < 0)
+ goto error;
+ ret = -EINVAL;
+ if (min_sec_level > RXRPC_SECURITY_MAX)
+ goto error;
+ rx->min_sec_level = min_sec_level;
+ goto success;
+
+ default:
+ break;
+ }
+ }
+
+success:
+ ret = 0;
+error:
+ release_sock(&rx->sk);
+ return ret;
+}
+
+/*
+ * permit an RxRPC socket to be polled
+ */
+static unsigned int rxrpc_poll(struct file *file, struct socket *sock,
+ poll_table *wait)
+{
+ unsigned int mask;
+ struct sock *sk = sock->sk;
+
+ poll_wait(file, sk->sk_sleep, wait);
+ mask = 0;
+
+ /* the socket is readable if there are any messages waiting on the Rx
+ * queue */
+ if (!skb_queue_empty(&sk->sk_receive_queue))
+ mask |= POLLIN | POLLRDNORM;
+
+ /* the socket is writable if there is space to add new data to the
+ * socket; there is no guarantee that any particular call in progress
+ * on the socket may have space in the Tx ACK window */
+ if (rxrpc_writable(sk))
+ mask |= POLLOUT | POLLWRNORM;
+
+ return mask;
+}
+
+/*
+ * create an RxRPC socket
+ */
+static int rxrpc_create(struct socket *sock, int protocol)
+{
+ struct rxrpc_sock *rx;
+ struct sock *sk;
+
+ _enter("%p,%d", sock, protocol);
+
+ /* we support transport protocol UDP only */
+ if (protocol != PF_INET)
+ return -EPROTONOSUPPORT;
+
+ if (sock->type != SOCK_DGRAM)
+ return -ESOCKTNOSUPPORT;
+
+ sock->ops = &rxrpc_rpc_ops;
+ sock->state = SS_UNCONNECTED;
+
+ sk = sk_alloc(PF_RXRPC, GFP_KERNEL, &rxrpc_proto, 1);
+ if (!sk)
+ return -ENOMEM;
+
+ sock_init_data(sock, sk);
+ sk->sk_state = RXRPC_UNCONNECTED;
+ sk->sk_write_space = rxrpc_write_space;
+ sk->sk_max_ack_backlog = sysctl_rxrpc_max_qlen;
+ sk->sk_destruct = rxrpc_sock_destructor;
+
+ rx = rxrpc_sk(sk);
+ rx->proto = protocol;
+ rx->calls = RB_ROOT;
+
+ INIT_LIST_HEAD(&rx->listen_link);
+ INIT_LIST_HEAD(&rx->secureq);
+ INIT_LIST_HEAD(&rx->acceptq);
+ rwlock_init(&rx->call_lock);
+ memset(&rx->srx, 0, sizeof(rx->srx));
+
+ _leave(" = 0 [%p]", rx);
+ return 0;
+}
+
+/*
+ * RxRPC socket destructor
+ */
+static void rxrpc_sock_destructor(struct sock *sk)
+{
+ _enter("%p", sk);
+
+ rxrpc_purge_queue(&sk->sk_receive_queue);
+
+ BUG_TRAP(!atomic_read(&sk->sk_wmem_alloc));
+ BUG_TRAP(sk_unhashed(sk));
+ BUG_TRAP(!sk->sk_socket);
+
+ if (!sock_flag(sk, SOCK_DEAD)) {
+ printk("Attempt to release alive rxrpc socket: %p\n", sk);
+ return;
+ }
+}
+
+/*
+ * release an RxRPC socket
+ */
+static int rxrpc_release_sock(struct sock *sk)
+{
+ struct rxrpc_sock *rx = rxrpc_sk(sk);
+
+ _enter("%p{%d,%d}", sk, sk->sk_state, atomic_read(&sk->sk_refcnt));
+
+ /* declare the socket closed for business */
+ sock_orphan(sk);
+ sk->sk_shutdown = SHUTDOWN_MASK;
+
+ spin_lock_bh(&sk->sk_receive_queue.lock);
+ sk->sk_state = RXRPC_CLOSE;
+ spin_unlock_bh(&sk->sk_receive_queue.lock);
+
+ ASSERTCMP(rx->listen_link.next, !=, LIST_POISON1);
+
+ if (!list_empty(&rx->listen_link)) {
+ write_lock_bh(&rx->local->services_lock);
+ list_del(&rx->listen_link);
+ write_unlock_bh(&rx->local->services_lock);
+ }
+
+ /* try to flush out this socket */
+ rxrpc_release_calls_on_socket(rx);
+ flush_scheduled_work();
+ rxrpc_purge_queue(&sk->sk_receive_queue);
+
+ if (rx->conn) {
+ rxrpc_put_connection(rx->conn);
+ rx->conn = NULL;
+ }
+
+ if (rx->bundle) {
+ rxrpc_put_bundle(rx->trans, rx->bundle);
+ rx->bundle = NULL;
+ }
+ if (rx->trans) {
+ rxrpc_put_transport(rx->trans);
+ rx->trans = NULL;
+ }
+ if (rx->local) {
+ rxrpc_put_local(rx->local);
+ rx->local = NULL;
+ }
+
+ key_put(rx->key);
+ rx->key = NULL;
+ key_put(rx->securities);
+ rx->securities = NULL;
+ sock_put(sk);
+
+ _leave(" = 0");
+ return 0;
+}
+
+/*
+ * release an RxRPC BSD socket on close() or equivalent
+ */
+static int rxrpc_release(struct socket *sock)
+{
+ struct sock *sk = sock->sk;
+
+ _enter("%p{%p}", sock, sk);
+
+ if (!sk)
+ return 0;
+
+ sock->sk = NULL;
+
+ return rxrpc_release_sock(sk);
+}
+
+/*
+ * RxRPC network protocol
+ */
+static const struct proto_ops rxrpc_rpc_ops = {
+ .family = PF_UNIX,
+ .owner = THIS_MODULE,
+ .release = rxrpc_release,
+ .bind = rxrpc_bind,
+ .connect = rxrpc_connect,
+ .socketpair = sock_no_socketpair,
+ .accept = sock_no_accept,
+ .getname = sock_no_getname,
+ .poll = rxrpc_poll,
+ .ioctl = sock_no_ioctl,
+ .listen = rxrpc_listen,
+ .shutdown = sock_no_shutdown,
+ .setsockopt = rxrpc_setsockopt,
+ .getsockopt = sock_no_getsockopt,
+ .sendmsg = rxrpc_sendmsg,
+ .recvmsg = rxrpc_recvmsg,
+ .mmap = sock_no_mmap,
+ .sendpage = sock_no_sendpage,
+};
+
+static struct proto rxrpc_proto = {
+ .name = "RXRPC",
+ .owner = THIS_MODULE,
+ .obj_size = sizeof(struct rxrpc_sock),
+ .max_header = sizeof(struct rxrpc_header),
+};
+
+static struct net_proto_family rxrpc_family_ops = {
+ .family = PF_RXRPC,
+ .create = rxrpc_create,
+ .owner = THIS_MODULE,
+};
+
+/*
+ * initialise and register the RxRPC protocol
+ */
+static int __init af_rxrpc_init(void)
+{
+ struct sk_buff *dummy_skb;
+ int ret = -1;
+
+ BUILD_BUG_ON(sizeof(struct rxrpc_skb_priv) > sizeof(dummy_skb->cb));
+
+ rxrpc_epoch = htonl(xtime.tv_sec);
+
+ rxrpc_call_jar = kmem_cache_create(
+ "rxrpc_call_jar", sizeof(struct rxrpc_call), 0,
+ SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (!rxrpc_call_jar) {
+ printk(KERN_NOTICE "RxRPC: Failed to allocate call jar\n");
+ ret = -ENOMEM;
+ goto error_call_jar;
+ }
+
+ ret = proto_register(&rxrpc_proto, 1);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register protocol\n");
+ goto error_proto;
+ }
+
+ ret = sock_register(&rxrpc_family_ops);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register socket family\n");
+ goto error_sock;
+ }
+
+ ret = register_key_type(&key_type_rxrpc);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register client key type\n");
+ goto error_key_type;
+ }
+
+ ret = register_key_type(&key_type_rxrpc_s);
+ if (ret < 0) {
+ printk(KERN_CRIT "RxRPC: Cannot register server key type\n");
+ goto error_key_type_s;
+ }
+
+#ifdef CONFIG_PROC_FS
+ proc_net_fops_create("rxrpc_calls", 0, &rxrpc_call_seq_fops);
+ proc_net_fops_create("rxrpc_conns", 0, &rxrpc_connection_seq_fops);
+#endif
+ return 0;
+
+error_key_type_s:
+ unregister_key_type(&key_type_rxrpc);
+error_key_type:
+ sock_unregister(PF_RXRPC);
+error_sock:
+ proto_unregister(&rxrpc_proto);
+error_proto:
+ kmem_cache_destroy(rxrpc_call_jar);
+error_call_jar:
+ return ret;
+}
+
+/*
+ * unregister the RxRPC protocol
+ */
+static void __exit af_rxrpc_exit(void)
+{
+ _enter("");
+ unregister_key_type(&key_type_rxrpc_s);
+ unregister_key_type(&key_type_rxrpc);
+ sock_unregister(PF_RXRPC);
+ proto_unregister(&rxrpc_proto);
+ rxrpc_destroy_all_calls();
+ rxrpc_destroy_all_connections();
+ rxrpc_destroy_all_transports();
+ rxrpc_destroy_all_peers();
+ rxrpc_destroy_all_locals();
+
+ ASSERTCMP(atomic_read(&rxrpc_n_skbs), ==, 0);
+
+ _debug("flush scheduled work");
+ flush_scheduled_work();
+ proc_net_remove("rxrpc_conns");
+ proc_net_remove("rxrpc_calls");
+ kmem_cache_destroy(rxrpc_call_jar);
+ _leave("");
+}
+
+module_init(af_rxrpc_init);
+module_exit(af_rxrpc_exit);

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