[mirror_ubuntu-kernels.git] / net / bluetooth / hci_conn.c

/*
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated

   Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License version 2 as
   published by the Free Software Foundation;

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
   SOFTWARE IS DISCLAIMED.
*/

/* Bluetooth HCI connection handling. */

#include <linux/module.h>

#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
#include <linux/init.h>
#include <linux/skbuff.h>
#include <linux/interrupt.h>
#include <linux/notifier.h>
#include <net/sock.h>

#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#ifndef CONFIG_BT_HCI_CORE_DEBUG
#undef  BT_DBG
#define BT_DBG(D...)
#endif

void hci_acl_connect(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;
	struct inquiry_entry *ie;
	struct hci_cp_create_conn cp;

	BT_DBG("%p", conn);

	conn->state = BT_CONNECT;
	conn->out = 1;

	conn->link_mode = HCI_LM_MASTER;

	conn->attempt++;

	conn->link_policy = hdev->link_policy;

	memset(&cp, 0, sizeof(cp));
	bacpy(&cp.bdaddr, &conn->dst);
	cp.pscan_rep_mode = 0x02;

	if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
		if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
			cp.pscan_rep_mode = ie->data.pscan_rep_mode;
			cp.pscan_mode     = ie->data.pscan_mode;
			cp.clock_offset   = ie->data.clock_offset |
							cpu_to_le16(0x8000);
		}

		memcpy(conn->dev_class, ie->data.dev_class, 3);
		conn->ssp_mode = ie->data.ssp_mode;
	}

	cp.pkt_type = cpu_to_le16(conn->pkt_type);
	if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
		cp.role_switch = 0x01;
	else
		cp.role_switch = 0x00;

	hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp);
}

static void hci_acl_connect_cancel(struct hci_conn *conn)
{
	struct hci_cp_create_conn_cancel cp;

	BT_DBG("%p", conn);

	if (conn->hdev->hci_ver < 2)
		return;

	bacpy(&cp.bdaddr, &conn->dst);
	hci_send_cmd(conn->hdev, HCI_OP_CREATE_CONN_CANCEL, sizeof(cp), &cp);
}

void hci_acl_disconn(struct hci_conn *conn, __u8 reason)
{
	struct hci_cp_disconnect cp;

	BT_DBG("%p", conn);

	conn->state = BT_DISCONN;

	cp.handle = cpu_to_le16(conn->handle);
	cp.reason = reason;
	hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp);
}

void hci_add_sco(struct hci_conn *conn, __u16 handle)
{
	struct hci_dev *hdev = conn->hdev;
	struct hci_cp_add_sco cp;

	BT_DBG("%p", conn);

	conn->state = BT_CONNECT;
	conn->out = 1;

	cp.handle   = cpu_to_le16(handle);
	cp.pkt_type = cpu_to_le16(conn->pkt_type);

	hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp);
}

void hci_setup_sync(struct hci_conn *conn, __u16 handle)
{
	struct hci_dev *hdev = conn->hdev;
	struct hci_cp_setup_sync_conn cp;

	BT_DBG("%p", conn);

	conn->state = BT_CONNECT;
	conn->out = 1;

	cp.handle   = cpu_to_le16(handle);
	cp.pkt_type = cpu_to_le16(conn->pkt_type);

	cp.tx_bandwidth   = cpu_to_le32(0x00001f40);
	cp.rx_bandwidth   = cpu_to_le32(0x00001f40);
	cp.max_latency    = cpu_to_le16(0xffff);
	cp.voice_setting  = cpu_to_le16(hdev->voice_setting);
	cp.retrans_effort = 0xff;

	hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
}

static void hci_conn_timeout(unsigned long arg)
{
	struct hci_conn *conn = (void *) arg;
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("conn %p state %d", conn, conn->state);

	if (atomic_read(&conn->refcnt))
		return;

	hci_dev_lock(hdev);

	switch (conn->state) {
	case BT_CONNECT:
	case BT_CONNECT2:
		if (conn->type == ACL_LINK)
			hci_acl_connect_cancel(conn);
		else
			hci_acl_disconn(conn, 0x13);
		break;
	case BT_CONFIG:
	case BT_CONNECTED:
		hci_acl_disconn(conn, 0x13);
		break;
	default:
		conn->state = BT_CLOSED;
		break;
	}

	hci_dev_unlock(hdev);
}

static void hci_conn_idle(unsigned long arg)
{
	struct hci_conn *conn = (void *) arg;

	BT_DBG("conn %p mode %d", conn, conn->mode);

	hci_conn_enter_sniff_mode(conn);
}

struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
{
	struct hci_conn *conn;

	BT_DBG("%s dst %s", hdev->name, batostr(dst));

	conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC);
	if (!conn)
		return NULL;

	bacpy(&conn->dst, dst);
	conn->hdev  = hdev;
	conn->type  = type;
	conn->mode  = HCI_CM_ACTIVE;
	conn->state = BT_OPEN;

	conn->power_save = 1;

	switch (type) {
	case ACL_LINK:
		conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
		break;
	case SCO_LINK:
		if (lmp_esco_capable(hdev))
			conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
		else
			conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
		break;
	case ESCO_LINK:
		conn->pkt_type = hdev->esco_type;
		break;
	}

	skb_queue_head_init(&conn->data_q);

	setup_timer(&conn->disc_timer, hci_conn_timeout, (unsigned long)conn);
	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);

	atomic_set(&conn->refcnt, 0);

	hci_dev_hold(hdev);

	tasklet_disable(&hdev->tx_task);

	hci_conn_hash_add(hdev, conn);
	if (hdev->notify)
		hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);

	tasklet_enable(&hdev->tx_task);

	return conn;
}

int hci_conn_del(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle);

	del_timer(&conn->idle_timer);

	del_timer(&conn->disc_timer);

	if (conn->type == ACL_LINK) {
		struct hci_conn *sco = conn->link;
		if (sco)
			sco->link = NULL;

		/* Unacked frames */
		hdev->acl_cnt += conn->sent;
	} else {
		struct hci_conn *acl = conn->link;
		if (acl) {
			acl->link = NULL;
			hci_conn_put(acl);
		}
	}

	tasklet_disable(&hdev->tx_task);

	hci_conn_hash_del(hdev, conn);
	if (hdev->notify)
		hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);

	tasklet_enable(&hdev->tx_task);

	skb_queue_purge(&conn->data_q);

	return 0;
}

struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
{
	int use_src = bacmp(src, BDADDR_ANY);
	struct hci_dev *hdev = NULL;
	struct list_head *p;

	BT_DBG("%s -> %s", batostr(src), batostr(dst));

	read_lock_bh(&hci_dev_list_lock);

	list_for_each(p, &hci_dev_list) {
		struct hci_dev *d = list_entry(p, struct hci_dev, list);

		if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags))
			continue;

		/* Simple routing:
		 *   No source address - find interface with bdaddr != dst
		 *   Source address    - find interface with bdaddr == src
		 */

		if (use_src) {
			if (!bacmp(&d->bdaddr, src)) {
				hdev = d; break;
			}
		} else {
			if (bacmp(&d->bdaddr, dst)) {
				hdev = d; break;
			}
		}
	}

	if (hdev)
		hdev = hci_dev_hold(hdev);

	read_unlock_bh(&hci_dev_list_lock);
	return hdev;
}
EXPORT_SYMBOL(hci_get_route);

/* Create SCO or ACL connection.
 * Device _must_ be locked */
struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 auth_type)
{
	struct hci_conn *acl;
	struct hci_conn *sco;

	BT_DBG("%s dst %s", hdev->name, batostr(dst));

	if (!(acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst))) {
		if (!(acl = hci_conn_add(hdev, ACL_LINK, dst)))
			return NULL;
	}

	hci_conn_hold(acl);

	if (acl->state == BT_OPEN || acl->state == BT_CLOSED) {
		acl->auth_type = auth_type;
		hci_acl_connect(acl);
	}

	if (type == ACL_LINK)
		return acl;

	if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) {
		if (!(sco = hci_conn_add(hdev, type, dst))) {
			hci_conn_put(acl);
			return NULL;
		}
	}

	acl->link = sco;
	sco->link = acl;

	hci_conn_hold(sco);

	if (acl->state == BT_CONNECTED &&
			(sco->state == BT_OPEN || sco->state == BT_CLOSED)) {
		if (lmp_esco_capable(hdev))
			hci_setup_sync(sco, acl->handle);
		else
			hci_add_sco(sco, acl->handle);
	}

	return sco;
}
EXPORT_SYMBOL(hci_connect);

/* Authenticate remote device */
int hci_conn_auth(struct hci_conn *conn)
{
	BT_DBG("conn %p", conn);

	if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0) {
		if (!(conn->auth_type & 0x01)) {
			conn->auth_type |= 0x01;
			conn->link_mode &= ~HCI_LM_AUTH;
		}
	}

	if (conn->link_mode & HCI_LM_AUTH)
		return 1;

	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
		struct hci_cp_auth_requested cp;
		cp.handle = cpu_to_le16(conn->handle);
		hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
							sizeof(cp), &cp);
	}
	return 0;
}
EXPORT_SYMBOL(hci_conn_auth);

/* Enable encryption */
int hci_conn_encrypt(struct hci_conn *conn)
{
	BT_DBG("conn %p", conn);

	if (conn->link_mode & HCI_LM_ENCRYPT)
		return hci_conn_auth(conn);

	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
		return 0;

	if (hci_conn_auth(conn)) {
		struct hci_cp_set_conn_encrypt cp;
		cp.handle  = cpu_to_le16(conn->handle);
		cp.encrypt = 1;
		hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT,
							sizeof(cp), &cp);
	}
	return 0;
}
EXPORT_SYMBOL(hci_conn_encrypt);

/* Change link key */
int hci_conn_change_link_key(struct hci_conn *conn)
{
	BT_DBG("conn %p", conn);

	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
		struct hci_cp_change_conn_link_key cp;
		cp.handle = cpu_to_le16(conn->handle);
		hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
							sizeof(cp), &cp);
	}
	return 0;
}
EXPORT_SYMBOL(hci_conn_change_link_key);

/* Switch role */
int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
{
	BT_DBG("conn %p", conn);

	if (!role && conn->link_mode & HCI_LM_MASTER)
		return 1;

	if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->pend)) {
		struct hci_cp_switch_role cp;
		bacpy(&cp.bdaddr, &conn->dst);
		cp.role = role;
		hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
	}
	return 0;
}
EXPORT_SYMBOL(hci_conn_switch_role);

/* Enter active mode */
void hci_conn_enter_active_mode(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("conn %p mode %d", conn, conn->mode);

	if (test_bit(HCI_RAW, &hdev->flags))
		return;

	if (conn->mode != HCI_CM_SNIFF || !conn->power_save)
		goto timer;

	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
		struct hci_cp_exit_sniff_mode cp;
		cp.handle = cpu_to_le16(conn->handle);
		hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp);
	}

timer:
	if (hdev->idle_timeout > 0)
		mod_timer(&conn->idle_timer,
			jiffies + msecs_to_jiffies(hdev->idle_timeout));
}

/* Enter sniff mode */
void hci_conn_enter_sniff_mode(struct hci_conn *conn)
{
	struct hci_dev *hdev = conn->hdev;

	BT_DBG("conn %p mode %d", conn, conn->mode);

	if (test_bit(HCI_RAW, &hdev->flags))
		return;

	if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn))
		return;

	if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF))
		return;

	if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
		struct hci_cp_sniff_subrate cp;
		cp.handle             = cpu_to_le16(conn->handle);
		cp.max_latency        = cpu_to_le16(0);
		cp.min_remote_timeout = cpu_to_le16(0);
		cp.min_local_timeout  = cpu_to_le16(0);
		hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
	}

	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
		struct hci_cp_sniff_mode cp;
		cp.handle       = cpu_to_le16(conn->handle);
		cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
		cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
		cp.attempt      = cpu_to_le16(4);
		cp.timeout      = cpu_to_le16(1);
		hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp);
	}
}

/* Drop all connection on the device */
void hci_conn_hash_flush(struct hci_dev *hdev)
{
	struct hci_conn_hash *h = &hdev->conn_hash;
	struct list_head *p;

	BT_DBG("hdev %s", hdev->name);

	p = h->list.next;
	while (p != &h->list) {
		struct hci_conn *c;

		c = list_entry(p, struct hci_conn, list);
		p = p->next;

		c->state = BT_CLOSED;

		hci_conn_del_sysfs(c);

		hci_proto_disconn_ind(c, 0x16);
		hci_conn_del(c);
	}
}

/* Check pending connect attempts */
void hci_conn_check_pending(struct hci_dev *hdev)
{
	struct hci_conn *conn;

	BT_DBG("hdev %s", hdev->name);

	hci_dev_lock(hdev);

	conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
	if (conn)
		hci_acl_connect(conn);

	hci_dev_unlock(hdev);
}

int hci_get_conn_list(void __user *arg)
{
	struct hci_conn_list_req req, *cl;
	struct hci_conn_info *ci;
	struct hci_dev *hdev;
	struct list_head *p;
	int n = 0, size, err;

	if (copy_from_user(&req, arg, sizeof(req)))
		return -EFAULT;

	if (!req.conn_num || req.conn_num > (PAGE_SIZE * 2) / sizeof(*ci))
		return -EINVAL;

	size = sizeof(req) + req.conn_num * sizeof(*ci);

	if (!(cl = kmalloc(size, GFP_KERNEL)))
		return -ENOMEM;

	if (!(hdev = hci_dev_get(req.dev_id))) {
		kfree(cl);
		return -ENODEV;
	}

	ci = cl->conn_info;

	hci_dev_lock_bh(hdev);
	list_for_each(p, &hdev->conn_hash.list) {
		register struct hci_conn *c;
		c = list_entry(p, struct hci_conn, list);

		bacpy(&(ci + n)->bdaddr, &c->dst);
		(ci + n)->handle = c->handle;
		(ci + n)->type  = c->type;
		(ci + n)->out   = c->out;
		(ci + n)->state = c->state;
		(ci + n)->link_mode = c->link_mode;
		if (++n >= req.conn_num)
			break;
	}
	hci_dev_unlock_bh(hdev);

	cl->dev_id = hdev->id;
	cl->conn_num = n;
	size = sizeof(req) + n * sizeof(*ci);

	hci_dev_put(hdev);

	err = copy_to_user(arg, cl, size);
	kfree(cl);

	return err ? -EFAULT : 0;
}

int hci_get_conn_info(struct hci_dev *hdev, void __user *arg)
{
	struct hci_conn_info_req req;
	struct hci_conn_info ci;
	struct hci_conn *conn;
	char __user *ptr = arg + sizeof(req);

	if (copy_from_user(&req, arg, sizeof(req)))
		return -EFAULT;

	hci_dev_lock_bh(hdev);
	conn = hci_conn_hash_lookup_ba(hdev, req.type, &req.bdaddr);
	if (conn) {
		bacpy(&ci.bdaddr, &conn->dst);
		ci.handle = conn->handle;
		ci.type  = conn->type;
		ci.out   = conn->out;
		ci.state = conn->state;
		ci.link_mode = conn->link_mode;
	}
	hci_dev_unlock_bh(hdev);

	if (!conn)
		return -ENOENT;

	return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0;
}

int hci_get_auth_info(struct hci_dev *hdev, void __user *arg)
{
	struct hci_auth_info_req req;
	struct hci_conn *conn;

	if (copy_from_user(&req, arg, sizeof(req)))
		return -EFAULT;

	hci_dev_lock_bh(hdev);
	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr);
	if (conn)
		req.type = conn->auth_type;
	hci_dev_unlock_bh(hdev);

	if (!conn)
		return -ENOENT;

	return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0;
}
Commit	Line	Data
8e87d142	1	/*
1da177e4 LT	2	BlueZ - Bluetooth protocol stack for Linux
	3	Copyright (C) 2000-2001 Qualcomm Incorporated
	4
	5	Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License version 2 as
	9	published by the Free Software Foundation;
	10
	11	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	12	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	13	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	14	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
8e87d142 YH	15	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	16	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	17	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
1da177e4 LT	18	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1da177e4 LT	19
8e87d142 YH	20	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
8e87d142 YH	21	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4 LT	22	SOFTWARE IS DISCLAIMED.
	23	*/
	24
	25	/* Bluetooth HCI connection handling. */
	26
1da177e4 LT	27	#include <linux/module.h>
	28
	29	#include <linux/types.h>
	30	#include <linux/errno.h>
	31	#include <linux/kernel.h>
1da177e4 LT	32	#include <linux/slab.h>
	33	#include <linux/poll.h>
	34	#include <linux/fcntl.h>
	35	#include <linux/init.h>
	36	#include <linux/skbuff.h>
	37	#include <linux/interrupt.h>
	38	#include <linux/notifier.h>
	39	#include <net/sock.h>
	40
	41	#include <asm/system.h>
	42	#include <asm/uaccess.h>
	43	#include <asm/unaligned.h>
	44
	45	#include <net/bluetooth/bluetooth.h>
	46	#include <net/bluetooth/hci_core.h>
	47
	48	#ifndef CONFIG_BT_HCI_CORE_DEBUG
	49	#undef BT_DBG
	50	#define BT_DBG(D...)
	51	#endif
	52
4c67bc74	53	void hci_acl_connect(struct hci_conn *conn)
1da177e4 LT	54	{
	55	struct hci_dev *hdev = conn->hdev;
	56	struct inquiry_entry *ie;
	57	struct hci_cp_create_conn cp;
	58
	59	BT_DBG("%p", conn);
	60
	61	conn->state = BT_CONNECT;
a8746417 MH	62	conn->out = 1;
a8746417 MH	63
1da177e4 LT	64	conn->link_mode = HCI_LM_MASTER;
1da177e4 LT	65
4c67bc74 MH	66	conn->attempt++;
4c67bc74 MH	67
e4e8e37c MH	68	conn->link_policy = hdev->link_policy;
e4e8e37c MH	69
1da177e4 LT	70	memset(&cp, 0, sizeof(cp));
	71	bacpy(&cp.bdaddr, &conn->dst);
	72	cp.pscan_rep_mode = 0x02;
	73
41a96212 MH	74	if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
	75	if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) {
	76	cp.pscan_rep_mode = ie->data.pscan_rep_mode;
	77	cp.pscan_mode = ie->data.pscan_mode;
	78	cp.clock_offset = ie->data.clock_offset \|
	79	cpu_to_le16(0x8000);
	80	}
	81
1da177e4	82	memcpy(conn->dev_class, ie->data.dev_class, 3);
41a96212	83	conn->ssp_mode = ie->data.ssp_mode;
1da177e4 LT	84	}
1da177e4 LT	85
a8746417	86	cp.pkt_type = cpu_to_le16(conn->pkt_type);
1da177e4	87	if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER))
b6a0dc82	88	cp.role_switch = 0x01;
1da177e4	89	else
b6a0dc82	90	cp.role_switch = 0x00;
4c67bc74	91
a9de9248	92	hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp);
1da177e4 LT	93	}
1da177e4 LT	94
6ac59344 MH	95	static void hci_acl_connect_cancel(struct hci_conn *conn)
	96	{
	97	struct hci_cp_create_conn_cancel cp;
	98
	99	BT_DBG("%p", conn);
	100
	101	if (conn->hdev->hci_ver < 2)
	102	return;
	103
	104	bacpy(&cp.bdaddr, &conn->dst);
a9de9248	105	hci_send_cmd(conn->hdev, HCI_OP_CREATE_CONN_CANCEL, sizeof(cp), &cp);
6ac59344 MH	106	}
6ac59344 MH	107
1da177e4 LT	108	void hci_acl_disconn(struct hci_conn *conn, __u8 reason)
	109	{
	110	struct hci_cp_disconnect cp;
	111
	112	BT_DBG("%p", conn);
	113
	114	conn->state = BT_DISCONN;
	115
aca3192c	116	cp.handle = cpu_to_le16(conn->handle);
1da177e4	117	cp.reason = reason;
a9de9248	118	hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp);
1da177e4 LT	119	}
	120
	121	void hci_add_sco(struct hci_conn *conn, __u16 handle)
	122	{
	123	struct hci_dev *hdev = conn->hdev;
	124	struct hci_cp_add_sco cp;
	125
	126	BT_DBG("%p", conn);
	127
	128	conn->state = BT_CONNECT;
	129	conn->out = 1;
	130
aca3192c	131	cp.handle = cpu_to_le16(handle);
a8746417	132	cp.pkt_type = cpu_to_le16(conn->pkt_type);
1da177e4	133
a9de9248	134	hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp);
1da177e4 LT	135	}
1da177e4 LT	136
b6a0dc82 MH	137	void hci_setup_sync(struct hci_conn *conn, __u16 handle)
	138	{
	139	struct hci_dev *hdev = conn->hdev;
	140	struct hci_cp_setup_sync_conn cp;
	141
	142	BT_DBG("%p", conn);
	143
	144	conn->state = BT_CONNECT;
	145	conn->out = 1;
	146
	147	cp.handle = cpu_to_le16(handle);
a8746417	148	cp.pkt_type = cpu_to_le16(conn->pkt_type);
b6a0dc82 MH	149
	150	cp.tx_bandwidth = cpu_to_le32(0x00001f40);
	151	cp.rx_bandwidth = cpu_to_le32(0x00001f40);
	152	cp.max_latency = cpu_to_le16(0xffff);
	153	cp.voice_setting = cpu_to_le16(hdev->voice_setting);
	154	cp.retrans_effort = 0xff;
	155
	156	hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp);
	157	}
	158
1da177e4 LT	159	static void hci_conn_timeout(unsigned long arg)
1da177e4 LT	160	{
04837f64 MH	161	struct hci_conn conn = (void ) arg;
04837f64 MH	162	struct hci_dev *hdev = conn->hdev;
1da177e4 LT	163
	164	BT_DBG("conn %p state %d", conn, conn->state);
	165
	166	if (atomic_read(&conn->refcnt))
	167	return;
	168
	169	hci_dev_lock(hdev);
6ac59344 MH	170
	171	switch (conn->state) {
	172	case BT_CONNECT:
769be974	173	case BT_CONNECT2:
b6a0dc82 MH	174	if (conn->type == ACL_LINK)
	175	hci_acl_connect_cancel(conn);
	176	else
	177	hci_acl_disconn(conn, 0x13);
6ac59344	178	break;
769be974	179	case BT_CONFIG:
8e87d142	180	case BT_CONNECTED:
1da177e4	181	hci_acl_disconn(conn, 0x13);
6ac59344 MH	182	break;
6ac59344 MH	183	default:
1da177e4	184	conn->state = BT_CLOSED;
6ac59344 MH	185	break;
	186	}
	187
1da177e4	188	hci_dev_unlock(hdev);
1da177e4 LT	189	}
1da177e4 LT	190
04837f64	191	static void hci_conn_idle(unsigned long arg)
1da177e4	192	{
04837f64 MH	193	struct hci_conn conn = (void ) arg;
	194
	195	BT_DBG("conn %p mode %d", conn, conn->mode);
	196
	197	hci_conn_enter_sniff_mode(conn);
1da177e4 LT	198	}
	199
	200	struct hci_conn hci_conn_add(struct hci_dev hdev, int type, bdaddr_t *dst)
	201	{
	202	struct hci_conn *conn;
	203
	204	BT_DBG("%s dst %s", hdev->name, batostr(dst));
	205
04837f64 MH	206	conn = kzalloc(sizeof(struct hci_conn), GFP_ATOMIC);
04837f64 MH	207	if (!conn)
1da177e4	208	return NULL;
1da177e4 LT	209
1da177e4 LT	210	bacpy(&conn->dst, dst);
a8746417 MH	211	conn->hdev = hdev;
	212	conn->type = type;
	213	conn->mode = HCI_CM_ACTIVE;
	214	conn->state = BT_OPEN;
1da177e4	215
04837f64 MH	216	conn->power_save = 1;
04837f64 MH	217
a8746417 MH	218	switch (type) {
	219	case ACL_LINK:
	220	conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK;
	221	break;
	222	case SCO_LINK:
	223	if (lmp_esco_capable(hdev))
	224	conn->pkt_type = hdev->esco_type & SCO_ESCO_MASK;
	225	else
	226	conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK;
	227	break;
	228	case ESCO_LINK:
	229	conn->pkt_type = hdev->esco_type;
	230	break;
	231	}
	232
1da177e4	233	skb_queue_head_init(&conn->data_q);
04837f64	234
b24b8a24 PE	235	setup_timer(&conn->disc_timer, hci_conn_timeout, (unsigned long)conn);
b24b8a24 PE	236	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
1da177e4 LT	237
	238	atomic_set(&conn->refcnt, 0);
	239
	240	hci_dev_hold(hdev);
	241
	242	tasklet_disable(&hdev->tx_task);
	243
	244	hci_conn_hash_add(hdev, conn);
	245	if (hdev->notify)
	246	hdev->notify(hdev, HCI_NOTIFY_CONN_ADD);
	247
	248	tasklet_enable(&hdev->tx_task);
	249
	250	return conn;
	251	}
	252
	253	int hci_conn_del(struct hci_conn *conn)
	254	{
	255	struct hci_dev *hdev = conn->hdev;
	256
	257	BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle);
	258
04837f64 MH	259	del_timer(&conn->idle_timer);
	260
	261	del_timer(&conn->disc_timer);
1da177e4	262
5b7f9909	263	if (conn->type == ACL_LINK) {
1da177e4 LT	264	struct hci_conn *sco = conn->link;
	265	if (sco)
	266	sco->link = NULL;
	267
	268	/* Unacked frames */
	269	hdev->acl_cnt += conn->sent;
5b7f9909 MH	270	} else {
	271	struct hci_conn *acl = conn->link;
	272	if (acl) {
	273	acl->link = NULL;
	274	hci_conn_put(acl);
	275	}
1da177e4 LT	276	}
	277
	278	tasklet_disable(&hdev->tx_task);
7d0db0a3	279
1da177e4 LT	280	hci_conn_hash_del(hdev, conn);
	281	if (hdev->notify)
	282	hdev->notify(hdev, HCI_NOTIFY_CONN_DEL);
7d0db0a3	283
1da177e4	284	tasklet_enable(&hdev->tx_task);
7d0db0a3	285
1da177e4	286	skb_queue_purge(&conn->data_q);
1da177e4	287
1da177e4 LT	288	return 0;
	289	}
	290
	291	struct hci_dev hci_get_route(bdaddr_t dst, bdaddr_t *src)
	292	{
	293	int use_src = bacmp(src, BDADDR_ANY);
	294	struct hci_dev *hdev = NULL;
	295	struct list_head *p;
	296
	297	BT_DBG("%s -> %s", batostr(src), batostr(dst));
	298
	299	read_lock_bh(&hci_dev_list_lock);
	300
	301	list_for_each(p, &hci_dev_list) {
	302	struct hci_dev *d = list_entry(p, struct hci_dev, list);
	303
	304	if (!test_bit(HCI_UP, &d->flags) \|\| test_bit(HCI_RAW, &d->flags))
	305	continue;
	306
8e87d142	307	/* Simple routing:
1da177e4 LT	308	* No source address - find interface with bdaddr != dst
	309	* Source address - find interface with bdaddr == src
	310	*/
	311
	312	if (use_src) {
	313	if (!bacmp(&d->bdaddr, src)) {
	314	hdev = d; break;
	315	}
	316	} else {
	317	if (bacmp(&d->bdaddr, dst)) {
	318	hdev = d; break;
	319	}
	320	}
	321	}
	322
	323	if (hdev)
	324	hdev = hci_dev_hold(hdev);
	325
	326	read_unlock_bh(&hci_dev_list_lock);
	327	return hdev;
	328	}
	329	EXPORT_SYMBOL(hci_get_route);
	330
	331	/* Create SCO or ACL connection.
	332	* Device _must_ be locked */
09ab6f4c	333	struct hci_conn hci_connect(struct hci_dev hdev, int type, bdaddr_t *dst, __u8 auth_type)
1da177e4 LT	334	{
1da177e4 LT	335	struct hci_conn *acl;
5b7f9909	336	struct hci_conn *sco;
1da177e4 LT	337
	338	BT_DBG("%s dst %s", hdev->name, batostr(dst));
	339
	340	if (!(acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst))) {
	341	if (!(acl = hci_conn_add(hdev, ACL_LINK, dst)))
	342	return NULL;
	343	}
	344
	345	hci_conn_hold(acl);
	346
09ab6f4c MH	347	if (acl->state == BT_OPEN \|\| acl->state == BT_CLOSED) {
09ab6f4c MH	348	acl->auth_type = auth_type;
1da177e4	349	hci_acl_connect(acl);
09ab6f4c	350	}
1da177e4	351
5b7f9909 MH	352	if (type == ACL_LINK)
5b7f9909 MH	353	return acl;
1da177e4	354
5b7f9909 MH	355	if (!(sco = hci_conn_hash_lookup_ba(hdev, type, dst))) {
	356	if (!(sco = hci_conn_add(hdev, type, dst))) {
	357	hci_conn_put(acl);
	358	return NULL;
1da177e4	359	}
5b7f9909	360	}
1da177e4	361
5b7f9909 MH	362	acl->link = sco;
5b7f9909 MH	363	sco->link = acl;
1da177e4	364
5b7f9909	365	hci_conn_hold(sco);
1da177e4	366
5b7f9909	367	if (acl->state == BT_CONNECTED &&
b6a0dc82 MH	368	(sco->state == BT_OPEN \|\| sco->state == BT_CLOSED)) {
	369	if (lmp_esco_capable(hdev))
	370	hci_setup_sync(sco, acl->handle);
	371	else
	372	hci_add_sco(sco, acl->handle);
	373	}
5b7f9909 MH	374
5b7f9909 MH	375	return sco;
1da177e4 LT	376	}
	377	EXPORT_SYMBOL(hci_connect);
	378
	379	/* Authenticate remote device */
	380	int hci_conn_auth(struct hci_conn *conn)
	381	{
	382	BT_DBG("conn %p", conn);
	383
40be492f MH	384	if (conn->ssp_mode > 0 && conn->hdev->ssp_mode > 0) {
40be492f MH	385	if (!(conn->auth_type & 0x01)) {
09ab6f4c	386	conn->auth_type \|= 0x01;
40be492f MH	387	conn->link_mode &= ~HCI_LM_AUTH;
	388	}
	389	}
	390
1da177e4 LT	391	if (conn->link_mode & HCI_LM_AUTH)
	392	return 1;
	393
	394	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
	395	struct hci_cp_auth_requested cp;
aca3192c	396	cp.handle = cpu_to_le16(conn->handle);
40be492f MH	397	hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED,
40be492f MH	398	sizeof(cp), &cp);
1da177e4 LT	399	}
	400	return 0;
	401	}
	402	EXPORT_SYMBOL(hci_conn_auth);
	403
	404	/* Enable encryption */
	405	int hci_conn_encrypt(struct hci_conn *conn)
	406	{
	407	BT_DBG("conn %p", conn);
	408
	409	if (conn->link_mode & HCI_LM_ENCRYPT)
40be492f	410	return hci_conn_auth(conn);
1da177e4 LT	411
	412	if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	413	return 0;
	414
	415	if (hci_conn_auth(conn)) {
	416	struct hci_cp_set_conn_encrypt cp;
aca3192c	417	cp.handle = cpu_to_le16(conn->handle);
8e87d142	418	cp.encrypt = 1;
40be492f MH	419	hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT,
40be492f MH	420	sizeof(cp), &cp);
1da177e4 LT	421	}
	422	return 0;
	423	}
	424	EXPORT_SYMBOL(hci_conn_encrypt);
	425
	426	/* Change link key */
	427	int hci_conn_change_link_key(struct hci_conn *conn)
	428	{
	429	BT_DBG("conn %p", conn);
	430
	431	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->pend)) {
	432	struct hci_cp_change_conn_link_key cp;
aca3192c	433	cp.handle = cpu_to_le16(conn->handle);
40be492f MH	434	hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY,
40be492f MH	435	sizeof(cp), &cp);
1da177e4 LT	436	}
	437	return 0;
	438	}
	439	EXPORT_SYMBOL(hci_conn_change_link_key);
	440
	441	/* Switch role */
	442	int hci_conn_switch_role(struct hci_conn *conn, uint8_t role)
	443	{
	444	BT_DBG("conn %p", conn);
	445
	446	if (!role && conn->link_mode & HCI_LM_MASTER)
	447	return 1;
	448
	449	if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->pend)) {
	450	struct hci_cp_switch_role cp;
	451	bacpy(&cp.bdaddr, &conn->dst);
	452	cp.role = role;
a9de9248	453	hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp);
1da177e4 LT	454	}
	455	return 0;
	456	}
	457	EXPORT_SYMBOL(hci_conn_switch_role);
	458
04837f64 MH	459	/* Enter active mode */
	460	void hci_conn_enter_active_mode(struct hci_conn *conn)
	461	{
	462	struct hci_dev *hdev = conn->hdev;
	463
	464	BT_DBG("conn %p mode %d", conn, conn->mode);
	465
	466	if (test_bit(HCI_RAW, &hdev->flags))
	467	return;
	468
	469	if (conn->mode != HCI_CM_SNIFF \|\| !conn->power_save)
	470	goto timer;
	471
	472	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
	473	struct hci_cp_exit_sniff_mode cp;
aca3192c	474	cp.handle = cpu_to_le16(conn->handle);
a9de9248	475	hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp);
04837f64 MH	476	}
	477
	478	timer:
	479	if (hdev->idle_timeout > 0)
	480	mod_timer(&conn->idle_timer,
	481	jiffies + msecs_to_jiffies(hdev->idle_timeout));
	482	}
	483
	484	/* Enter sniff mode */
	485	void hci_conn_enter_sniff_mode(struct hci_conn *conn)
	486	{
	487	struct hci_dev *hdev = conn->hdev;
	488
	489	BT_DBG("conn %p mode %d", conn, conn->mode);
	490
	491	if (test_bit(HCI_RAW, &hdev->flags))
	492	return;
	493
	494	if (!lmp_sniff_capable(hdev) \|\| !lmp_sniff_capable(conn))
	495	return;
	496
	497	if (conn->mode != HCI_CM_ACTIVE \|\| !(conn->link_policy & HCI_LP_SNIFF))
	498	return;
	499
	500	if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) {
	501	struct hci_cp_sniff_subrate cp;
aca3192c YH	502	cp.handle = cpu_to_le16(conn->handle);
	503	cp.max_latency = cpu_to_le16(0);
	504	cp.min_remote_timeout = cpu_to_le16(0);
	505	cp.min_local_timeout = cpu_to_le16(0);
a9de9248	506	hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp);
04837f64 MH	507	}
	508
	509	if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
	510	struct hci_cp_sniff_mode cp;
aca3192c YH	511	cp.handle = cpu_to_le16(conn->handle);
	512	cp.max_interval = cpu_to_le16(hdev->sniff_max_interval);
	513	cp.min_interval = cpu_to_le16(hdev->sniff_min_interval);
	514	cp.attempt = cpu_to_le16(4);
	515	cp.timeout = cpu_to_le16(1);
a9de9248	516	hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp);
04837f64 MH	517	}
	518	}
	519
1da177e4 LT	520	/* Drop all connection on the device */
	521	void hci_conn_hash_flush(struct hci_dev *hdev)
	522	{
	523	struct hci_conn_hash *h = &hdev->conn_hash;
	524	struct list_head *p;
	525
	526	BT_DBG("hdev %s", hdev->name);
	527
	528	p = h->list.next;
	529	while (p != &h->list) {
	530	struct hci_conn *c;
	531
	532	c = list_entry(p, struct hci_conn, list);
	533	p = p->next;
	534
	535	c->state = BT_CLOSED;
	536
7d0db0a3 MH	537	hci_conn_del_sysfs(c);
7d0db0a3 MH	538
1da177e4 LT	539	hci_proto_disconn_ind(c, 0x16);
	540	hci_conn_del(c);
	541	}
	542	}
	543
a9de9248 MH	544	/* Check pending connect attempts */
	545	void hci_conn_check_pending(struct hci_dev *hdev)
	546	{
	547	struct hci_conn *conn;
	548
	549	BT_DBG("hdev %s", hdev->name);
	550
	551	hci_dev_lock(hdev);
	552
	553	conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
	554	if (conn)
	555	hci_acl_connect(conn);
	556
	557	hci_dev_unlock(hdev);
	558	}
	559
1da177e4 LT	560	int hci_get_conn_list(void __user *arg)
	561	{
	562	struct hci_conn_list_req req, *cl;
	563	struct hci_conn_info *ci;
	564	struct hci_dev *hdev;
	565	struct list_head *p;
	566	int n = 0, size, err;
	567
	568	if (copy_from_user(&req, arg, sizeof(req)))
	569	return -EFAULT;
	570
	571	if (!req.conn_num \|\| req.conn_num > (PAGE_SIZE * 2) / sizeof(*ci))
	572	return -EINVAL;
	573
	574	size = sizeof(req) + req.conn_num * sizeof(*ci);
	575
12fe2c58	576	if (!(cl = kmalloc(size, GFP_KERNEL)))
1da177e4 LT	577	return -ENOMEM;
	578
	579	if (!(hdev = hci_dev_get(req.dev_id))) {
	580	kfree(cl);
	581	return -ENODEV;
	582	}
	583
	584	ci = cl->conn_info;
	585
	586	hci_dev_lock_bh(hdev);
	587	list_for_each(p, &hdev->conn_hash.list) {
	588	register struct hci_conn *c;
	589	c = list_entry(p, struct hci_conn, list);
	590
	591	bacpy(&(ci + n)->bdaddr, &c->dst);
	592	(ci + n)->handle = c->handle;
	593	(ci + n)->type = c->type;
	594	(ci + n)->out = c->out;
	595	(ci + n)->state = c->state;
	596	(ci + n)->link_mode = c->link_mode;
	597	if (++n >= req.conn_num)
	598	break;
	599	}
	600	hci_dev_unlock_bh(hdev);
	601
	602	cl->dev_id = hdev->id;
	603	cl->conn_num = n;
	604	size = sizeof(req) + n * sizeof(*ci);
	605
	606	hci_dev_put(hdev);
	607
	608	err = copy_to_user(arg, cl, size);
	609	kfree(cl);
	610
	611	return err ? -EFAULT : 0;
	612	}
	613
	614	int hci_get_conn_info(struct hci_dev hdev, void __user arg)
	615	{
	616	struct hci_conn_info_req req;
	617	struct hci_conn_info ci;
	618	struct hci_conn *conn;
	619	char __user *ptr = arg + sizeof(req);
	620
	621	if (copy_from_user(&req, arg, sizeof(req)))
	622	return -EFAULT;
	623
	624	hci_dev_lock_bh(hdev);
	625	conn = hci_conn_hash_lookup_ba(hdev, req.type, &req.bdaddr);
	626	if (conn) {
	627	bacpy(&ci.bdaddr, &conn->dst);
	628	ci.handle = conn->handle;
	629	ci.type = conn->type;
	630	ci.out = conn->out;
	631	ci.state = conn->state;
	632	ci.link_mode = conn->link_mode;
	633	}
	634	hci_dev_unlock_bh(hdev);
	635
	636	if (!conn)
	637	return -ENOENT;
	638
	639	return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0;
	640	}
40be492f MH	641
	642	int hci_get_auth_info(struct hci_dev hdev, void __user arg)
	643	{
	644	struct hci_auth_info_req req;
	645	struct hci_conn *conn;
	646
	647	if (copy_from_user(&req, arg, sizeof(req)))
	648	return -EFAULT;
	649
	650	hci_dev_lock_bh(hdev);
	651	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr);
	652	if (conn)
	653	req.type = conn->auth_type;
	654	hci_dev_unlock_bh(hdev);
	655
	656	if (!conn)
	657	return -ENOENT;
	658
	659	return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0;
	660	}