[mirror_ubuntu-jammy-kernel.git] / net / mctp / af_mctp.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Management Component Transport Protocol (MCTP)
 *
 * Copyright (c) 2021 Code Construct
 * Copyright (c) 2021 Google
 */

#include <linux/if_arp.h>
#include <linux/net.h>
#include <linux/mctp.h>
#include <linux/module.h>
#include <linux/socket.h>

#include <net/mctp.h>
#include <net/mctpdevice.h>
#include <net/sock.h>

/* socket implementation */

static int mctp_release(struct socket *sock)
{
	struct sock *sk = sock->sk;

	if (sk) {
		sock->sk = NULL;
		sk->sk_prot->close(sk, 0);
	}

	return 0;
}

static int mctp_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
{
	struct sock *sk = sock->sk;
	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
	struct sockaddr_mctp *smctp;
	int rc;

	if (addrlen < sizeof(*smctp))
		return -EINVAL;

	if (addr->sa_family != AF_MCTP)
		return -EAFNOSUPPORT;

	if (!capable(CAP_NET_BIND_SERVICE))
		return -EACCES;

	/* it's a valid sockaddr for MCTP, cast and do protocol checks */
	smctp = (struct sockaddr_mctp *)addr;

	lock_sock(sk);

	/* TODO: allow rebind */
	if (sk_hashed(sk)) {
		rc = -EADDRINUSE;
		goto out_release;
	}
	msk->bind_net = smctp->smctp_network;
	msk->bind_addr = smctp->smctp_addr.s_addr;
	msk->bind_type = smctp->smctp_type & 0x7f; /* ignore the IC bit */

	rc = sk->sk_prot->hash(sk);

out_release:
	release_sock(sk);

	return rc;
}

static int mctp_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
{
	DECLARE_SOCKADDR(struct sockaddr_mctp *, addr, msg->msg_name);
	const int hlen = MCTP_HEADER_MAXLEN + sizeof(struct mctp_hdr);
	int rc, addrlen = msg->msg_namelen;
	struct sock *sk = sock->sk;
	struct mctp_skb_cb *cb;
	struct mctp_route *rt;
	struct sk_buff *skb;

	if (addr) {
		if (addrlen < sizeof(struct sockaddr_mctp))
			return -EINVAL;
		if (addr->smctp_family != AF_MCTP)
			return -EINVAL;
		if (addr->smctp_tag & ~(MCTP_TAG_MASK | MCTP_TAG_OWNER))
			return -EINVAL;

	} else {
		/* TODO: connect()ed sockets */
		return -EDESTADDRREQ;
	}

	if (!capable(CAP_NET_RAW))
		return -EACCES;

	rt = mctp_route_lookup(sock_net(sk), addr->smctp_network,
			       addr->smctp_addr.s_addr);
	if (!rt)
		return -EHOSTUNREACH;

	skb = sock_alloc_send_skb(sk, hlen + 1 + len,
				  msg->msg_flags & MSG_DONTWAIT, &rc);
	if (!skb)
		return rc;

	skb_reserve(skb, hlen);

	/* set type as fist byte in payload */
	*(u8 *)skb_put(skb, 1) = addr->smctp_type;

	rc = memcpy_from_msg((void *)skb_put(skb, len), msg, len);
	if (rc < 0) {
		kfree_skb(skb);
		return rc;
	}

	/* set up cb */
	cb = __mctp_cb(skb);
	cb->net = addr->smctp_network;

	rc = mctp_local_output(sk, rt, skb, addr->smctp_addr.s_addr,
			       addr->smctp_tag);

	return rc ? : len;
}

static int mctp_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
			int flags)
{
	DECLARE_SOCKADDR(struct sockaddr_mctp *, addr, msg->msg_name);
	struct sock *sk = sock->sk;
	struct sk_buff *skb;
	size_t msglen;
	u8 type;
	int rc;

	if (flags & ~(MSG_DONTWAIT | MSG_TRUNC | MSG_PEEK))
		return -EOPNOTSUPP;

	skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &rc);
	if (!skb)
		return rc;

	if (!skb->len) {
		rc = 0;
		goto out_free;
	}

	/* extract message type, remove from data */
	type = *((u8 *)skb->data);
	msglen = skb->len - 1;

	if (len < msglen)
		msg->msg_flags |= MSG_TRUNC;
	else
		len = msglen;

	rc = skb_copy_datagram_msg(skb, 1, msg, len);
	if (rc < 0)
		goto out_free;

	sock_recv_ts_and_drops(msg, sk, skb);

	if (addr) {
		struct mctp_skb_cb *cb = mctp_cb(skb);
		/* TODO: expand mctp_skb_cb for header fields? */
		struct mctp_hdr *hdr = mctp_hdr(skb);

		hdr = mctp_hdr(skb);
		addr = msg->msg_name;
		addr->smctp_family = AF_MCTP;
		addr->smctp_network = cb->net;
		addr->smctp_addr.s_addr = hdr->src;
		addr->smctp_type = type;
		addr->smctp_tag = hdr->flags_seq_tag &
					(MCTP_HDR_TAG_MASK | MCTP_HDR_FLAG_TO);
		msg->msg_namelen = sizeof(*addr);
	}

	rc = len;

	if (flags & MSG_TRUNC)
		rc = msglen;

out_free:
	skb_free_datagram(sk, skb);
	return rc;
}

static int mctp_setsockopt(struct socket *sock, int level, int optname,
			   sockptr_t optval, unsigned int optlen)
{
	return -EINVAL;
}

static int mctp_getsockopt(struct socket *sock, int level, int optname,
			   char __user *optval, int __user *optlen)
{
	return -EINVAL;
}

static const struct proto_ops mctp_dgram_ops = {
	.family		= PF_MCTP,
	.release	= mctp_release,
	.bind		= mctp_bind,
	.connect	= sock_no_connect,
	.socketpair	= sock_no_socketpair,
	.accept		= sock_no_accept,
	.getname	= sock_no_getname,
	.poll		= datagram_poll,
	.ioctl		= sock_no_ioctl,
	.gettstamp	= sock_gettstamp,
	.listen		= sock_no_listen,
	.shutdown	= sock_no_shutdown,
	.setsockopt	= mctp_setsockopt,
	.getsockopt	= mctp_getsockopt,
	.sendmsg	= mctp_sendmsg,
	.recvmsg	= mctp_recvmsg,
	.mmap		= sock_no_mmap,
	.sendpage	= sock_no_sendpage,
};

static int mctp_sk_init(struct sock *sk)
{
	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);

	INIT_HLIST_HEAD(&msk->keys);
	return 0;
}

static void mctp_sk_close(struct sock *sk, long timeout)
{
	sk_common_release(sk);
}

static int mctp_sk_hash(struct sock *sk)
{
	struct net *net = sock_net(sk);

	mutex_lock(&net->mctp.bind_lock);
	sk_add_node_rcu(sk, &net->mctp.binds);
	mutex_unlock(&net->mctp.bind_lock);

	return 0;
}

static void mctp_sk_unhash(struct sock *sk)
{
	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
	struct net *net = sock_net(sk);
	struct mctp_sk_key *key;
	struct hlist_node *tmp;
	unsigned long flags;

	/* remove from any type-based binds */
	mutex_lock(&net->mctp.bind_lock);
	sk_del_node_init_rcu(sk);
	mutex_unlock(&net->mctp.bind_lock);

	/* remove tag allocations */
	spin_lock_irqsave(&net->mctp.keys_lock, flags);
	hlist_for_each_entry_safe(key, tmp, &msk->keys, sklist) {
		hlist_del_rcu(&key->sklist);
		hlist_del_rcu(&key->hlist);

		spin_lock(&key->reasm_lock);
		if (key->reasm_head)
			kfree_skb(key->reasm_head);
		key->reasm_head = NULL;
		key->reasm_dead = true;
		spin_unlock(&key->reasm_lock);

		kfree_rcu(key, rcu);
	}
	spin_unlock_irqrestore(&net->mctp.keys_lock, flags);

	synchronize_rcu();
}

static struct proto mctp_proto = {
	.name		= "MCTP",
	.owner		= THIS_MODULE,
	.obj_size	= sizeof(struct mctp_sock),
	.init		= mctp_sk_init,
	.close		= mctp_sk_close,
	.hash		= mctp_sk_hash,
	.unhash		= mctp_sk_unhash,
};

static int mctp_pf_create(struct net *net, struct socket *sock,
			  int protocol, int kern)
{
	const struct proto_ops *ops;
	struct proto *proto;
	struct sock *sk;
	int rc;

	if (protocol)
		return -EPROTONOSUPPORT;

	/* only datagram sockets are supported */
	if (sock->type != SOCK_DGRAM)
		return -ESOCKTNOSUPPORT;

	proto = &mctp_proto;
	ops = &mctp_dgram_ops;

	sock->state = SS_UNCONNECTED;
	sock->ops = ops;

	sk = sk_alloc(net, PF_MCTP, GFP_KERNEL, proto, kern);
	if (!sk)
		return -ENOMEM;

	sock_init_data(sock, sk);

	rc = 0;
	if (sk->sk_prot->init)
		rc = sk->sk_prot->init(sk);

	if (rc)
		goto err_sk_put;

	return 0;

err_sk_put:
	sock_orphan(sk);
	sock_put(sk);
	return rc;
}

static struct net_proto_family mctp_pf = {
	.family = PF_MCTP,
	.create = mctp_pf_create,
	.owner = THIS_MODULE,
};

static __init int mctp_init(void)
{
	int rc;

	/* ensure our uapi tag definitions match the header format */
	BUILD_BUG_ON(MCTP_TAG_OWNER != MCTP_HDR_FLAG_TO);
	BUILD_BUG_ON(MCTP_TAG_MASK != MCTP_HDR_TAG_MASK);

	pr_info("mctp: management component transport protocol core\n");

	rc = sock_register(&mctp_pf);
	if (rc)
		return rc;

	rc = proto_register(&mctp_proto, 0);
	if (rc)
		goto err_unreg_sock;

	rc = mctp_routes_init();
	if (rc)
		goto err_unreg_proto;

	rc = mctp_neigh_init();
	if (rc)
		goto err_unreg_proto;

	mctp_device_init();

	return 0;

err_unreg_proto:
	proto_unregister(&mctp_proto);
err_unreg_sock:
	sock_unregister(PF_MCTP);

	return rc;
}

static __exit void mctp_exit(void)
{
	mctp_device_exit();
	mctp_neigh_exit();
	mctp_routes_exit();
	proto_unregister(&mctp_proto);
	sock_unregister(PF_MCTP);
}

module_init(mctp_init);
module_exit(mctp_exit);

MODULE_DESCRIPTION("MCTP core");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Jeremy Kerr <jk@codeconstruct.com.au>");

MODULE_ALIAS_NETPROTO(PF_MCTP);
Commit	Line	Data
bc49d816 JK	1	// SPDX-License-Identifier: GPL-2.0
	2	/*
	3	* Management Component Transport Protocol (MCTP)
	4	*
	5	* Copyright (c) 2021 Code Construct
	6	* Copyright (c) 2021 Google
	7	*/
	8
583be982	9	#include <linux/if_arp.h>
8f601a1e JK	10	#include <linux/net.h>
8f601a1e JK	11	#include <linux/mctp.h>
bc49d816	12	#include <linux/module.h>
8f601a1e JK	13	#include <linux/socket.h>
8f601a1e JK	14
583be982 JK	15	#include <net/mctp.h>
583be982 JK	16	#include <net/mctpdevice.h>
8f601a1e JK	17	#include <net/sock.h>
8f601a1e JK	18
583be982 JK	19	/* socket implementation */
583be982 JK	20
8f601a1e JK	21	static int mctp_release(struct socket *sock)
	22	{
	23	struct sock *sk = sock->sk;
	24
	25	if (sk) {
	26	sock->sk = NULL;
	27	sk->sk_prot->close(sk, 0);
	28	}
	29
	30	return 0;
	31	}
	32
	33	static int mctp_bind(struct socket sock, struct sockaddr addr, int addrlen)
	34	{
833ef3b9 JK	35	struct sock *sk = sock->sk;
	36	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
	37	struct sockaddr_mctp *smctp;
	38	int rc;
	39
	40	if (addrlen < sizeof(*smctp))
	41	return -EINVAL;
	42
	43	if (addr->sa_family != AF_MCTP)
	44	return -EAFNOSUPPORT;
	45
	46	if (!capable(CAP_NET_BIND_SERVICE))
	47	return -EACCES;
	48
	49	/* it's a valid sockaddr for MCTP, cast and do protocol checks */
	50	smctp = (struct sockaddr_mctp *)addr;
	51
	52	lock_sock(sk);
	53
	54	/* TODO: allow rebind */
	55	if (sk_hashed(sk)) {
	56	rc = -EADDRINUSE;
	57	goto out_release;
	58	}
	59	msk->bind_net = smctp->smctp_network;
	60	msk->bind_addr = smctp->smctp_addr.s_addr;
	61	msk->bind_type = smctp->smctp_type & 0x7f; /* ignore the IC bit */
	62
	63	rc = sk->sk_prot->hash(sk);
	64
	65	out_release:
	66	release_sock(sk);
	67
	68	return rc;
8f601a1e JK	69	}
	70
	71	static int mctp_sendmsg(struct socket sock, struct msghdr msg, size_t len)
	72	{
833ef3b9 JK	73	DECLARE_SOCKADDR(struct sockaddr_mctp *, addr, msg->msg_name);
	74	const int hlen = MCTP_HEADER_MAXLEN + sizeof(struct mctp_hdr);
	75	int rc, addrlen = msg->msg_namelen;
	76	struct sock *sk = sock->sk;
	77	struct mctp_skb_cb *cb;
	78	struct mctp_route *rt;
	79	struct sk_buff *skb;
	80
	81	if (addr) {
	82	if (addrlen < sizeof(struct sockaddr_mctp))
	83	return -EINVAL;
	84	if (addr->smctp_family != AF_MCTP)
	85	return -EINVAL;
	86	if (addr->smctp_tag & ~(MCTP_TAG_MASK \| MCTP_TAG_OWNER))
	87	return -EINVAL;
	88
	89	} else {
	90	/* TODO: connect()ed sockets */
	91	return -EDESTADDRREQ;
	92	}
	93
	94	if (!capable(CAP_NET_RAW))
	95	return -EACCES;
	96
	97	rt = mctp_route_lookup(sock_net(sk), addr->smctp_network,
	98	addr->smctp_addr.s_addr);
	99	if (!rt)
	100	return -EHOSTUNREACH;
	101
	102	skb = sock_alloc_send_skb(sk, hlen + 1 + len,
	103	msg->msg_flags & MSG_DONTWAIT, &rc);
	104	if (!skb)
	105	return rc;
	106
	107	skb_reserve(skb, hlen);
	108
	109	/* set type as fist byte in payload */
	110	(u8 )skb_put(skb, 1) = addr->smctp_type;
	111
	112	rc = memcpy_from_msg((void *)skb_put(skb, len), msg, len);
	113	if (rc < 0) {
	114	kfree_skb(skb);
	115	return rc;
	116	}
	117
	118	/* set up cb */
	119	cb = __mctp_cb(skb);
	120	cb->net = addr->smctp_network;
	121
	122	rc = mctp_local_output(sk, rt, skb, addr->smctp_addr.s_addr,
	123	addr->smctp_tag);
	124
	125	return rc ? : len;
8f601a1e JK	126	}
	127
	128	static int mctp_recvmsg(struct socket sock, struct msghdr msg, size_t len,
	129	int flags)
	130	{
833ef3b9 JK	131	DECLARE_SOCKADDR(struct sockaddr_mctp *, addr, msg->msg_name);
	132	struct sock *sk = sock->sk;
	133	struct sk_buff *skb;
	134	size_t msglen;
	135	u8 type;
	136	int rc;
	137
	138	if (flags & ~(MSG_DONTWAIT \| MSG_TRUNC \| MSG_PEEK))
	139	return -EOPNOTSUPP;
	140
	141	skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &rc);
	142	if (!skb)
	143	return rc;
	144
	145	if (!skb->len) {
	146	rc = 0;
	147	goto out_free;
	148	}
	149
	150	/* extract message type, remove from data */
	151	type = ((u8 )skb->data);
	152	msglen = skb->len - 1;
	153
	154	if (len < msglen)
	155	msg->msg_flags \|= MSG_TRUNC;
	156	else
	157	len = msglen;
	158
	159	rc = skb_copy_datagram_msg(skb, 1, msg, len);
	160	if (rc < 0)
	161	goto out_free;
	162
	163	sock_recv_ts_and_drops(msg, sk, skb);
	164
	165	if (addr) {
	166	struct mctp_skb_cb *cb = mctp_cb(skb);
	167	/* TODO: expand mctp_skb_cb for header fields? */
	168	struct mctp_hdr *hdr = mctp_hdr(skb);
	169
	170	hdr = mctp_hdr(skb);
	171	addr = msg->msg_name;
	172	addr->smctp_family = AF_MCTP;
	173	addr->smctp_network = cb->net;
	174	addr->smctp_addr.s_addr = hdr->src;
	175	addr->smctp_type = type;
	176	addr->smctp_tag = hdr->flags_seq_tag &
	177	(MCTP_HDR_TAG_MASK \| MCTP_HDR_FLAG_TO);
	178	msg->msg_namelen = sizeof(*addr);
	179	}
	180
	181	rc = len;
	182
	183	if (flags & MSG_TRUNC)
	184	rc = msglen;
	185
	186	out_free:
	187	skb_free_datagram(sk, skb);
	188	return rc;
8f601a1e JK	189	}
	190
	191	static int mctp_setsockopt(struct socket *sock, int level, int optname,
	192	sockptr_t optval, unsigned int optlen)
	193	{
	194	return -EINVAL;
	195	}
	196
	197	static int mctp_getsockopt(struct socket *sock, int level, int optname,
	198	char __user optval, int __user optlen)
	199	{
	200	return -EINVAL;
	201	}
	202
	203	static const struct proto_ops mctp_dgram_ops = {
	204	.family = PF_MCTP,
	205	.release = mctp_release,
	206	.bind = mctp_bind,
	207	.connect = sock_no_connect,
	208	.socketpair = sock_no_socketpair,
	209	.accept = sock_no_accept,
	210	.getname = sock_no_getname,
	211	.poll = datagram_poll,
	212	.ioctl = sock_no_ioctl,
	213	.gettstamp = sock_gettstamp,
	214	.listen = sock_no_listen,
	215	.shutdown = sock_no_shutdown,
	216	.setsockopt = mctp_setsockopt,
	217	.getsockopt = mctp_getsockopt,
	218	.sendmsg = mctp_sendmsg,
	219	.recvmsg = mctp_recvmsg,
	220	.mmap = sock_no_mmap,
	221	.sendpage = sock_no_sendpage,
	222	};
	223
833ef3b9 JK	224	static int mctp_sk_init(struct sock *sk)
	225	{
	226	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
	227
	228	INIT_HLIST_HEAD(&msk->keys);
	229	return 0;
	230	}
	231
8f601a1e JK	232	static void mctp_sk_close(struct sock *sk, long timeout)
	233	{
	234	sk_common_release(sk);
	235	}
	236
833ef3b9 JK	237	static int mctp_sk_hash(struct sock *sk)
	238	{
	239	struct net *net = sock_net(sk);
	240
	241	mutex_lock(&net->mctp.bind_lock);
	242	sk_add_node_rcu(sk, &net->mctp.binds);
	243	mutex_unlock(&net->mctp.bind_lock);
	244
	245	return 0;
	246	}
	247
	248	static void mctp_sk_unhash(struct sock *sk)
	249	{
	250	struct mctp_sock *msk = container_of(sk, struct mctp_sock, sk);
	251	struct net *net = sock_net(sk);
	252	struct mctp_sk_key *key;
	253	struct hlist_node *tmp;
	254	unsigned long flags;
	255
	256	/* remove from any type-based binds */
	257	mutex_lock(&net->mctp.bind_lock);
	258	sk_del_node_init_rcu(sk);
	259	mutex_unlock(&net->mctp.bind_lock);
	260
	261	/* remove tag allocations */
	262	spin_lock_irqsave(&net->mctp.keys_lock, flags);
	263	hlist_for_each_entry_safe(key, tmp, &msk->keys, sklist) {
	264	hlist_del_rcu(&key->sklist);
	265	hlist_del_rcu(&key->hlist);
4a992bbd JK	266
	267	spin_lock(&key->reasm_lock);
	268	if (key->reasm_head)
	269	kfree_skb(key->reasm_head);
	270	key->reasm_head = NULL;
	271	key->reasm_dead = true;
	272	spin_unlock(&key->reasm_lock);
	273
833ef3b9 JK	274	kfree_rcu(key, rcu);
	275	}
	276	spin_unlock_irqrestore(&net->mctp.keys_lock, flags);
	277
	278	synchronize_rcu();
	279	}
	280
8f601a1e JK	281	static struct proto mctp_proto = {
	282	.name = "MCTP",
	283	.owner = THIS_MODULE,
	284	.obj_size = sizeof(struct mctp_sock),
833ef3b9	285	.init = mctp_sk_init,
8f601a1e	286	.close = mctp_sk_close,
833ef3b9 JK	287	.hash = mctp_sk_hash,
833ef3b9 JK	288	.unhash = mctp_sk_unhash,
8f601a1e JK	289	};
	290
	291	static int mctp_pf_create(struct net net, struct socket sock,
	292	int protocol, int kern)
	293	{
	294	const struct proto_ops *ops;
	295	struct proto *proto;
	296	struct sock *sk;
	297	int rc;
	298
	299	if (protocol)
	300	return -EPROTONOSUPPORT;
	301
	302	/* only datagram sockets are supported */
	303	if (sock->type != SOCK_DGRAM)
	304	return -ESOCKTNOSUPPORT;
	305
	306	proto = &mctp_proto;
	307	ops = &mctp_dgram_ops;
	308
	309	sock->state = SS_UNCONNECTED;
	310	sock->ops = ops;
	311
	312	sk = sk_alloc(net, PF_MCTP, GFP_KERNEL, proto, kern);
	313	if (!sk)
	314	return -ENOMEM;
	315
	316	sock_init_data(sock, sk);
	317
	318	rc = 0;
	319	if (sk->sk_prot->init)
	320	rc = sk->sk_prot->init(sk);
	321
	322	if (rc)
	323	goto err_sk_put;
	324
	325	return 0;
	326
	327	err_sk_put:
	328	sock_orphan(sk);
	329	sock_put(sk);
	330	return rc;
	331	}
	332
	333	static struct net_proto_family mctp_pf = {
	334	.family = PF_MCTP,
	335	.create = mctp_pf_create,
	336	.owner = THIS_MODULE,
	337	};
	338
	339	static __init int mctp_init(void)
	340	{
	341	int rc;
	342
833ef3b9 JK	343	/* ensure our uapi tag definitions match the header format */
	344	BUILD_BUG_ON(MCTP_TAG_OWNER != MCTP_HDR_FLAG_TO);
	345	BUILD_BUG_ON(MCTP_TAG_MASK != MCTP_HDR_TAG_MASK);
	346
8f601a1e JK	347	pr_info("mctp: management component transport protocol core\n");
	348
	349	rc = sock_register(&mctp_pf);
	350	if (rc)
	351	return rc;
	352
	353	rc = proto_register(&mctp_proto, 0);
	354	if (rc)
	355	goto err_unreg_sock;
	356
889b7da2 JK	357	rc = mctp_routes_init();
	358	if (rc)
	359	goto err_unreg_proto;
	360
4d8b9319 MJ	361	rc = mctp_neigh_init();
	362	if (rc)
	363	goto err_unreg_proto;
	364
583be982 JK	365	mctp_device_init();
583be982 JK	366
8f601a1e JK	367	return 0;
8f601a1e JK	368
889b7da2 JK	369	err_unreg_proto:
889b7da2 JK	370	proto_unregister(&mctp_proto);
8f601a1e JK	371	err_unreg_sock:
	372	sock_unregister(PF_MCTP);
	373
	374	return rc;
	375	}
	376
	377	static __exit void mctp_exit(void)
	378	{
583be982	379	mctp_device_exit();
4d8b9319	380	mctp_neigh_exit();
889b7da2	381	mctp_routes_exit();
8f601a1e JK	382	proto_unregister(&mctp_proto);
	383	sock_unregister(PF_MCTP);
	384	}
	385
	386	module_init(mctp_init);
	387	module_exit(mctp_exit);
bc49d816 JK	388
	389	MODULE_DESCRIPTION("MCTP core");
	390	MODULE_LICENSE("GPL v2");
	391	MODULE_AUTHOR("Jeremy Kerr <jk@codeconstruct.com.au>");
8f601a1e JK	392
8f601a1e JK	393	MODULE_ALIAS_NETPROTO(PF_MCTP);