[net-next-2.6.git] / net / rxrpc / ar-connevent.c

/* connection-level event handling
 *
 * 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/errqueue.h>
#include <linux/udp.h>
#include <linux/in.h>
#include <linux/in6.h>
#include <linux/icmp.h>
#include <net/sock.h>
#include <net/af_rxrpc.h>
#include <net/ip.h>
#include "ar-internal.h"

/*
 * pass a connection-level abort onto all calls on that connection
 */
static void rxrpc_abort_calls(struct rxrpc_connection *conn, int state,
			      u32 abort_code)
{
	struct rxrpc_call *call;
	struct rb_node *p;

	_enter("{%d},%x", conn->debug_id, abort_code);

	read_lock_bh(&conn->lock);

	for (p = rb_first(&conn->calls); p; p = rb_next(p)) {
		call = rb_entry(p, struct rxrpc_call, conn_node);
		write_lock(&call->state_lock);
		if (call->state <= RXRPC_CALL_COMPLETE) {
			call->state = state;
			call->abort_code = abort_code;
			if (state == RXRPC_CALL_LOCALLY_ABORTED)
				set_bit(RXRPC_CALL_CONN_ABORT, &call->events);
			else
				set_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
			rxrpc_queue_call(call);
		}
		write_unlock(&call->state_lock);
	}

	read_unlock_bh(&conn->lock);
	_leave("");
}

/*
 * generate a connection-level abort
 */
static int rxrpc_abort_connection(struct rxrpc_connection *conn,
				  u32 error, u32 abort_code)
{
	struct rxrpc_header hdr;
	struct msghdr msg;
	struct kvec iov[2];
	__be32 word;
	size_t len;
	int ret;

	_enter("%d,,%u,%u", conn->debug_id, error, abort_code);

	/* generate a connection-level abort */
	spin_lock_bh(&conn->state_lock);
	if (conn->state < RXRPC_CONN_REMOTELY_ABORTED) {
		conn->state = RXRPC_CONN_LOCALLY_ABORTED;
		conn->error = error;
		spin_unlock_bh(&conn->state_lock);
	} else {
		spin_unlock_bh(&conn->state_lock);
		_leave(" = 0 [already dead]");
		return 0;
	}

	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code);

	msg.msg_name	= &conn->trans->peer->srx.transport.sin;
	msg.msg_namelen	= sizeof(conn->trans->peer->srx.transport.sin);
	msg.msg_control	= NULL;
	msg.msg_controllen = 0;
	msg.msg_flags	= 0;

	hdr.epoch	= conn->epoch;
	hdr.cid		= conn->cid;
	hdr.callNumber	= 0;
	hdr.seq		= 0;
	hdr.type	= RXRPC_PACKET_TYPE_ABORT;
	hdr.flags	= conn->out_clientflag;
	hdr.userStatus	= 0;
	hdr.securityIndex = conn->security_ix;
	hdr._rsvd	= 0;
	hdr.serviceId	= conn->service_id;

	word = htonl(abort_code);

	iov[0].iov_base	= &hdr;
	iov[0].iov_len	= sizeof(hdr);
	iov[1].iov_base	= &word;
	iov[1].iov_len	= sizeof(word);

	len = iov[0].iov_len + iov[1].iov_len;

	hdr.serial = htonl(atomic_inc_return(&conn->serial));
	_proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);

	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
	if (ret < 0) {
		_debug("sendmsg failed: %d", ret);
		return -EAGAIN;
	}

	_leave(" = 0");
	return 0;
}

/*
 * mark a call as being on a now-secured channel
 * - must be called with softirqs disabled
 */
static void rxrpc_call_is_secure(struct rxrpc_call *call)
{
	_enter("%p", call);
	if (call) {
		read_lock(&call->state_lock);
		if (call->state < RXRPC_CALL_COMPLETE &&
		    !test_and_set_bit(RXRPC_CALL_SECURED, &call->events))
			rxrpc_queue_call(call);
		read_unlock(&call->state_lock);
	}
}

/*
 * connection-level Rx packet processor
 */
static int rxrpc_process_event(struct rxrpc_connection *conn,
			       struct sk_buff *skb,
			       u32 *_abort_code)
{
	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
	__be32 tmp;
	u32 serial;
	int loop, ret;

	if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
		kleave(" = -ECONNABORTED [%u]", conn->state);
		return -ECONNABORTED;
	}

	serial = ntohl(sp->hdr.serial);

	_enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, serial);

	switch (sp->hdr.type) {
	case RXRPC_PACKET_TYPE_ABORT:
		if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0)
			return -EPROTO;
		_proto("Rx ABORT %%%u { ac=%d }", serial, ntohl(tmp));

		conn->state = RXRPC_CONN_REMOTELY_ABORTED;
		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED,
				  ntohl(tmp));
		return -ECONNABORTED;

	case RXRPC_PACKET_TYPE_CHALLENGE:
		if (conn->security)
			return conn->security->respond_to_challenge(
				conn, skb, _abort_code);
		return -EPROTO;

	case RXRPC_PACKET_TYPE_RESPONSE:
		if (!conn->security)
			return -EPROTO;

		ret = conn->security->verify_response(conn, skb, _abort_code);
		if (ret < 0)
			return ret;

		ret = conn->security->init_connection_security(conn);
		if (ret < 0)
			return ret;

		conn->security->prime_packet_security(conn);
		read_lock_bh(&conn->lock);
		spin_lock(&conn->state_lock);

		if (conn->state == RXRPC_CONN_SERVER_CHALLENGING) {
			conn->state = RXRPC_CONN_SERVER;
			for (loop = 0; loop < RXRPC_MAXCALLS; loop++)
				rxrpc_call_is_secure(conn->channels[loop]);
		}

		spin_unlock(&conn->state_lock);
		read_unlock_bh(&conn->lock);
		return 0;

	default:
		_leave(" = -EPROTO [%u]", sp->hdr.type);
		return -EPROTO;
	}
}

/*
 * set up security and issue a challenge
 */
static void rxrpc_secure_connection(struct rxrpc_connection *conn)
{
	u32 abort_code;
	int ret;

	_enter("{%d}", conn->debug_id);

	ASSERT(conn->security_ix != 0);

	if (!conn->key) {
		_debug("set up security");
		ret = rxrpc_init_server_conn_security(conn);
		switch (ret) {
		case 0:
			break;
		case -ENOENT:
			abort_code = RX_CALL_DEAD;
			goto abort;
		default:
			abort_code = RXKADNOAUTH;
			goto abort;
		}
	}

	ASSERT(conn->security != NULL);

	if (conn->security->issue_challenge(conn) < 0) {
		abort_code = RX_CALL_DEAD;
		ret = -ENOMEM;
		goto abort;
	}

	_leave("");
	return;

abort:
	_debug("abort %d, %d", ret, abort_code);
	rxrpc_abort_connection(conn, -ret, abort_code);
	_leave(" [aborted]");
}

/*
 * connection-level event processor
 */
void rxrpc_process_connection(struct work_struct *work)
{
	struct rxrpc_connection *conn =
		container_of(work, struct rxrpc_connection, processor);
	struct rxrpc_skb_priv *sp;
	struct sk_buff *skb;
	u32 abort_code = RX_PROTOCOL_ERROR;
	int ret;

	_enter("{%d}", conn->debug_id);

	atomic_inc(&conn->usage);

	if (test_and_clear_bit(RXRPC_CONN_CHALLENGE, &conn->events)) {
		rxrpc_secure_connection(conn);
		rxrpc_put_connection(conn);
	}

	/* go through the conn-level event packets, releasing the ref on this
	 * connection that each one has when we've finished with it */
	while ((skb = skb_dequeue(&conn->rx_queue))) {
		sp = rxrpc_skb(skb);

		ret = rxrpc_process_event(conn, skb, &abort_code);
		switch (ret) {
		case -EPROTO:
		case -EKEYEXPIRED:
		case -EKEYREJECTED:
			goto protocol_error;
		case -EAGAIN:
			goto requeue_and_leave;
		case -ECONNABORTED:
		default:
			rxrpc_put_connection(conn);
			rxrpc_free_skb(skb);
			break;
		}
	}

out:
	rxrpc_put_connection(conn);
	_leave("");
	return;

requeue_and_leave:
	skb_queue_head(&conn->rx_queue, skb);
	goto out;

protocol_error:
	if (rxrpc_abort_connection(conn, -ret, abort_code) < 0)
		goto requeue_and_leave;
	rxrpc_put_connection(conn);
	rxrpc_free_skb(skb);
	_leave(" [EPROTO]");
	goto out;
}

/*
 * put a packet up for transport-level abort
 */
void rxrpc_reject_packet(struct rxrpc_local *local, struct sk_buff *skb)
{
	CHECK_SLAB_OKAY(&local->usage);

	if (!atomic_inc_not_zero(&local->usage)) {
		printk("resurrected on reject\n");
		BUG();
	}

	skb_queue_tail(&local->reject_queue, skb);
	rxrpc_queue_work(&local->rejecter);
}

/*
 * reject packets through the local endpoint
 */
void rxrpc_reject_packets(struct work_struct *work)
{
	union {
		struct sockaddr sa;
		struct sockaddr_in sin;
	} sa;
	struct rxrpc_skb_priv *sp;
	struct rxrpc_header hdr;
	struct rxrpc_local *local;
	struct sk_buff *skb;
	struct msghdr msg;
	struct kvec iov[2];
	size_t size;
	__be32 code;

	local = container_of(work, struct rxrpc_local, rejecter);
	rxrpc_get_local(local);

	_enter("%d", local->debug_id);

	iov[0].iov_base = &hdr;
	iov[0].iov_len = sizeof(hdr);
	iov[1].iov_base = &code;
	iov[1].iov_len = sizeof(code);
	size = sizeof(hdr) + sizeof(code);

	msg.msg_name = &sa;
	msg.msg_control = NULL;
	msg.msg_controllen = 0;
	msg.msg_flags = 0;

	memset(&sa, 0, sizeof(sa));
	sa.sa.sa_family = local->srx.transport.family;
	switch (sa.sa.sa_family) {
	case AF_INET:
		msg.msg_namelen = sizeof(sa.sin);
		break;
	default:
		msg.msg_namelen = 0;
		break;
	}

	memset(&hdr, 0, sizeof(hdr));
	hdr.type = RXRPC_PACKET_TYPE_ABORT;

	while ((skb = skb_dequeue(&local->reject_queue))) {
		sp = rxrpc_skb(skb);
		switch (sa.sa.sa_family) {
		case AF_INET:
			sa.sin.sin_port = udp_hdr(skb)->source;
			sa.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
			code = htonl(skb->priority);

			hdr.epoch = sp->hdr.epoch;
			hdr.cid = sp->hdr.cid;
			hdr.callNumber = sp->hdr.callNumber;
			hdr.serviceId = sp->hdr.serviceId;
			hdr.flags = sp->hdr.flags;
			hdr.flags ^= RXRPC_CLIENT_INITIATED;
			hdr.flags &= RXRPC_CLIENT_INITIATED;

			kernel_sendmsg(local->socket, &msg, iov, 2, size);
			break;

		default:
			break;
		}

		rxrpc_free_skb(skb);
		rxrpc_put_local(local);
	}

	rxrpc_put_local(local);
	_leave("");
}
Commit	Line	Data
17926a79 DH	1	/* connection-level event handling
	2	*
	3	* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
	4	* Written by David Howells (dhowells@redhat.com)
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* as published by the Free Software Foundation; either version
	9	* 2 of the License, or (at your option) any later version.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/net.h>
	14	#include <linux/skbuff.h>
	15	#include <linux/errqueue.h>
	16	#include <linux/udp.h>
	17	#include <linux/in.h>
	18	#include <linux/in6.h>
	19	#include <linux/icmp.h>
	20	#include <net/sock.h>
	21	#include <net/af_rxrpc.h>
	22	#include <net/ip.h>
	23	#include "ar-internal.h"
	24
	25	/*
	26	* pass a connection-level abort onto all calls on that connection
	27	*/
	28	static void rxrpc_abort_calls(struct rxrpc_connection *conn, int state,
	29	u32 abort_code)
	30	{
	31	struct rxrpc_call *call;
	32	struct rb_node *p;
	33
	34	_enter("{%d},%x", conn->debug_id, abort_code);
	35
	36	read_lock_bh(&conn->lock);
	37
	38	for (p = rb_first(&conn->calls); p; p = rb_next(p)) {
	39	call = rb_entry(p, struct rxrpc_call, conn_node);
	40	write_lock(&call->state_lock);
	41	if (call->state <= RXRPC_CALL_COMPLETE) {
	42	call->state = state;
	43	call->abort_code = abort_code;
	44	if (state == RXRPC_CALL_LOCALLY_ABORTED)
	45	set_bit(RXRPC_CALL_CONN_ABORT, &call->events);
	46	else
	47	set_bit(RXRPC_CALL_RCVD_ABORT, &call->events);
651350d1	48	rxrpc_queue_call(call);
17926a79 DH	49	}
	50	write_unlock(&call->state_lock);
	51	}
	52
	53	read_unlock_bh(&conn->lock);
	54	_leave("");
	55	}
	56
	57	/*
	58	* generate a connection-level abort
	59	*/
	60	static int rxrpc_abort_connection(struct rxrpc_connection *conn,
	61	u32 error, u32 abort_code)
	62	{
	63	struct rxrpc_header hdr;
	64	struct msghdr msg;
	65	struct kvec iov[2];
	66	__be32 word;
	67	size_t len;
	68	int ret;
	69
	70	_enter("%d,,%u,%u", conn->debug_id, error, abort_code);
	71
	72	/* generate a connection-level abort */
	73	spin_lock_bh(&conn->state_lock);
	74	if (conn->state < RXRPC_CONN_REMOTELY_ABORTED) {
	75	conn->state = RXRPC_CONN_LOCALLY_ABORTED;
	76	conn->error = error;
	77	spin_unlock_bh(&conn->state_lock);
	78	} else {
	79	spin_unlock_bh(&conn->state_lock);
	80	_leave(" = 0 [already dead]");
	81	return 0;
	82	}
	83
	84	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, abort_code);
	85
	86	msg.msg_name = &conn->trans->peer->srx.transport.sin;
	87	msg.msg_namelen = sizeof(conn->trans->peer->srx.transport.sin);
	88	msg.msg_control = NULL;
	89	msg.msg_controllen = 0;
	90	msg.msg_flags = 0;
	91
	92	hdr.epoch = conn->epoch;
	93	hdr.cid = conn->cid;
	94	hdr.callNumber = 0;
	95	hdr.seq = 0;
	96	hdr.type = RXRPC_PACKET_TYPE_ABORT;
	97	hdr.flags = conn->out_clientflag;
	98	hdr.userStatus = 0;
	99	hdr.securityIndex = conn->security_ix;
	100	hdr._rsvd = 0;
	101	hdr.serviceId = conn->service_id;
	102
	103	word = htonl(abort_code);
	104
	105	iov[0].iov_base = &hdr;
	106	iov[0].iov_len = sizeof(hdr);
	107	iov[1].iov_base = &word;
	108	iov[1].iov_len = sizeof(word);
	109
	110	len = iov[0].iov_len + iov[1].iov_len;
	111
	112	hdr.serial = htonl(atomic_inc_return(&conn->serial));
113	_proto("Tx CONN ABORT %%%u { %d }", ntohl(hdr.serial), abort_code);
114
115	ret = kernel_sendmsg(conn->trans->local->socket, &msg, iov, 2, len);
116	if (ret < 0) {
117	_debug("sendmsg failed: %d", ret);
118	return -EAGAIN;
119	}
120
121	_leave(" = 0");
122	return 0;
123	}
124
125	/*
126	* mark a call as being on a now-secured channel
127	* - must be called with softirqs disabled
128	*/
5eaa65b2	129	static void rxrpc_call_is_secure(struct rxrpc_call *call)
17926a79 DH	130	{
	131	_enter("%p", call);
	132	if (call) {
	133	read_lock(&call->state_lock);
	134	if (call->state < RXRPC_CALL_COMPLETE &&
	135	!test_and_set_bit(RXRPC_CALL_SECURED, &call->events))
651350d1	136	rxrpc_queue_call(call);
17926a79 DH	137	read_unlock(&call->state_lock);
	138	}
	139	}
	140
	141	/*
	142	* connection-level Rx packet processor
	143	*/
	144	static int rxrpc_process_event(struct rxrpc_connection *conn,
	145	struct sk_buff *skb,
	146	u32 *_abort_code)
	147	{
	148	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
	149	__be32 tmp;
	150	u32 serial;
	151	int loop, ret;
	152
519d2567 DH	153	if (conn->state >= RXRPC_CONN_REMOTELY_ABORTED) {
519d2567 DH	154	kleave(" = -ECONNABORTED [%u]", conn->state);
17926a79	155	return -ECONNABORTED;
519d2567	156	}
17926a79 DH	157
	158	serial = ntohl(sp->hdr.serial);
	159
519d2567 DH	160	_enter("{%d},{%u,%%%u},", conn->debug_id, sp->hdr.type, serial);
519d2567 DH	161
17926a79 DH	162	switch (sp->hdr.type) {
	163	case RXRPC_PACKET_TYPE_ABORT:
	164	if (skb_copy_bits(skb, 0, &tmp, sizeof(tmp)) < 0)
	165	return -EPROTO;
	166	_proto("Rx ABORT %%%u { ac=%d }", serial, ntohl(tmp));
	167
	168	conn->state = RXRPC_CONN_REMOTELY_ABORTED;
	169	rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED,
	170	ntohl(tmp));
	171	return -ECONNABORTED;
	172
	173	case RXRPC_PACKET_TYPE_CHALLENGE:
	174	if (conn->security)
	175	return conn->security->respond_to_challenge(
	176	conn, skb, _abort_code);
	177	return -EPROTO;
	178
	179	case RXRPC_PACKET_TYPE_RESPONSE:
	180	if (!conn->security)
	181	return -EPROTO;
	182
	183	ret = conn->security->verify_response(conn, skb, _abort_code);
	184	if (ret < 0)
	185	return ret;
	186
	187	ret = conn->security->init_connection_security(conn);
	188	if (ret < 0)
	189	return ret;
	190
	191	conn->security->prime_packet_security(conn);
	192	read_lock_bh(&conn->lock);
	193	spin_lock(&conn->state_lock);
	194
	195	if (conn->state == RXRPC_CONN_SERVER_CHALLENGING) {
	196	conn->state = RXRPC_CONN_SERVER;
	197	for (loop = 0; loop < RXRPC_MAXCALLS; loop++)
	198	rxrpc_call_is_secure(conn->channels[loop]);
	199	}
	200
	201	spin_unlock(&conn->state_lock);
	202	read_unlock_bh(&conn->lock);
	203	return 0;
	204
	205	default:
519d2567	206	_leave(" = -EPROTO [%u]", sp->hdr.type);
17926a79 DH	207	return -EPROTO;
	208	}
	209	}
	210
	211	/*
	212	* set up security and issue a challenge
	213	*/
	214	static void rxrpc_secure_connection(struct rxrpc_connection *conn)
	215	{
	216	u32 abort_code;
	217	int ret;
	218
	219	_enter("{%d}", conn->debug_id);
	220
	221	ASSERT(conn->security_ix != 0);
	222
	223	if (!conn->key) {
	224	_debug("set up security");
	225	ret = rxrpc_init_server_conn_security(conn);
	226	switch (ret) {
	227	case 0:
	228	break;
	229	case -ENOENT:
	230	abort_code = RX_CALL_DEAD;
	231	goto abort;
	232	default:
	233	abort_code = RXKADNOAUTH;
	234	goto abort;
	235	}
	236	}
	237
	238	ASSERT(conn->security != NULL);
	239
	240	if (conn->security->issue_challenge(conn) < 0) {
	241	abort_code = RX_CALL_DEAD;
	242	ret = -ENOMEM;
	243	goto abort;
	244	}
	245
	246	_leave("");
	247	return;
	248
	249	abort:
	250	_debug("abort %d, %d", ret, abort_code);
	251	rxrpc_abort_connection(conn, -ret, abort_code);
	252	_leave(" [aborted]");
	253	}
	254
	255	/*
	256	* connection-level event processor
	257	*/
	258	void rxrpc_process_connection(struct work_struct *work)
	259	{
	260	struct rxrpc_connection *conn =
	261	container_of(work, struct rxrpc_connection, processor);
	262	struct rxrpc_skb_priv *sp;
	263	struct sk_buff *skb;
	264	u32 abort_code = RX_PROTOCOL_ERROR;
	265	int ret;
	266
	267	_enter("{%d}", conn->debug_id);
	268
	269	atomic_inc(&conn->usage);
	270
271	if (test_and_clear_bit(RXRPC_CONN_CHALLENGE, &conn->events)) {
272	rxrpc_secure_connection(conn);
273	rxrpc_put_connection(conn);
274	}
275
276	/* go through the conn-level event packets, releasing the ref on this
277	* connection that each one has when we've finished with it */
278	while ((skb = skb_dequeue(&conn->rx_queue))) {
279	sp = rxrpc_skb(skb);
280
281	ret = rxrpc_process_event(conn, skb, &abort_code);
282	switch (ret) {
283	case -EPROTO:
284	case -EKEYEXPIRED:
285	case -EKEYREJECTED:
286	goto protocol_error;
287	case -EAGAIN:
288	goto requeue_and_leave;
289	case -ECONNABORTED:
290	default:
291	rxrpc_put_connection(conn);
292	rxrpc_free_skb(skb);
293	break;
294	}
295	}
296
297	out:
298	rxrpc_put_connection(conn);
299	_leave("");
300	return;
301
302	requeue_and_leave:
303	skb_queue_head(&conn->rx_queue, skb);
304	goto out;
305
306	protocol_error:
307	if (rxrpc_abort_connection(conn, -ret, abort_code) < 0)
308	goto requeue_and_leave;
309	rxrpc_put_connection(conn);
310	rxrpc_free_skb(skb);
311	_leave(" [EPROTO]");
312	goto out;
313	}
314
651350d1 DH	315	/*
	316	* put a packet up for transport-level abort
	317	*/
	318	void rxrpc_reject_packet(struct rxrpc_local local, struct sk_buff skb)
	319	{
	320	CHECK_SLAB_OKAY(&local->usage);
	321
	322	if (!atomic_inc_not_zero(&local->usage)) {
	323	printk("resurrected on reject\n");
	324	BUG();
	325	}
	326
	327	skb_queue_tail(&local->reject_queue, skb);
	328	rxrpc_queue_work(&local->rejecter);
	329	}
	330
17926a79 DH	331	/*
	332	* reject packets through the local endpoint
	333	*/
	334	void rxrpc_reject_packets(struct work_struct *work)
	335	{
	336	union {
	337	struct sockaddr sa;
	338	struct sockaddr_in sin;
	339	} sa;
	340	struct rxrpc_skb_priv *sp;
	341	struct rxrpc_header hdr;
	342	struct rxrpc_local *local;
	343	struct sk_buff *skb;
	344	struct msghdr msg;
	345	struct kvec iov[2];
	346	size_t size;
	347	__be32 code;
	348
	349	local = container_of(work, struct rxrpc_local, rejecter);
	350	rxrpc_get_local(local);
	351
	352	_enter("%d", local->debug_id);
	353
	354	iov[0].iov_base = &hdr;
	355	iov[0].iov_len = sizeof(hdr);
	356	iov[1].iov_base = &code;
	357	iov[1].iov_len = sizeof(code);
	358	size = sizeof(hdr) + sizeof(code);
	359
	360	msg.msg_name = &sa;
	361	msg.msg_control = NULL;
	362	msg.msg_controllen = 0;
	363	msg.msg_flags = 0;
	364
	365	memset(&sa, 0, sizeof(sa));
	366	sa.sa.sa_family = local->srx.transport.family;
	367	switch (sa.sa.sa_family) {
	368	case AF_INET:
	369	msg.msg_namelen = sizeof(sa.sin);
	370	break;
	371	default:
	372	msg.msg_namelen = 0;
	373	break;
	374	}
	375
	376	memset(&hdr, 0, sizeof(hdr));
	377	hdr.type = RXRPC_PACKET_TYPE_ABORT;
	378
	379	while ((skb = skb_dequeue(&local->reject_queue))) {
	380	sp = rxrpc_skb(skb);
	381	switch (sa.sa.sa_family) {
	382	case AF_INET:
	383	sa.sin.sin_port = udp_hdr(skb)->source;
	384	sa.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
	385	code = htonl(skb->priority);
	386
	387	hdr.epoch = sp->hdr.epoch;
	388	hdr.cid = sp->hdr.cid;
	389	hdr.callNumber = sp->hdr.callNumber;
	390	hdr.serviceId = sp->hdr.serviceId;
	391	hdr.flags = sp->hdr.flags;
	392	hdr.flags ^= RXRPC_CLIENT_INITIATED;
	393	hdr.flags &= RXRPC_CLIENT_INITIATED;
	394
395	kernel_sendmsg(local->socket, &msg, iov, 2, size);
396	break;
397
398	default:
399	break;
400	}
401
402	rxrpc_free_skb(skb);
403	rxrpc_put_local(local);
404	}
405
406	rxrpc_put_local(local);
407	_leave("");
408	}