[mirror_ubuntu-bionic-kernel.git] / net / irda / irlan / irlan_provider.c

/*********************************************************************
 *
 * Filename:      irlan_provider.c
 * Version:       0.9
 * Description:   IrDA LAN Access Protocol Implementation
 * Status:        Experimental.
 * Author:        Dag Brattli <dagb@cs.uit.no>
 * Created at:    Sun Aug 31 20:14:37 1997
 * Modified at:   Sat Oct 30 12:52:10 1999
 * Modified by:   Dag Brattli <dagb@cs.uit.no>
 * Sources:       skeleton.c by Donald Becker <becker@CESDIS.gsfc.nasa.gov>
 *                slip.c by Laurence Culhane,   <loz@holmes.demon.co.uk>
 *                          Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
 *
 *     Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
 *     All Rights Reserved.
 *
 *     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.
 *
 *     Neither Dag Brattli nor University of Tromsø admit liability nor
 *     provide warranty for any of this software. This material is
 *     provided "AS-IS" and at no charge.
 *
 ********************************************************************/

#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/init.h>
#include <linux/random.h>
#include <linux/bitops.h>
#include <linux/slab.h>

#include <asm/byteorder.h>

#include <net/irda/irda.h>
#include <net/irda/irttp.h>
#include <net/irda/irlmp.h>
#include <net/irda/irias_object.h>
#include <net/irda/iriap.h>
#include <net/irda/timer.h>

#include <net/irda/irlan_common.h>
#include <net/irda/irlan_eth.h>
#include <net/irda/irlan_event.h>
#include <net/irda/irlan_provider.h>
#include <net/irda/irlan_filter.h>
#include <net/irda/irlan_client.h>

static void irlan_provider_connect_indication(void *instance, void *sap,
					      struct qos_info *qos,
					      __u32 max_sdu_size,
					      __u8 max_header_size,
					      struct sk_buff *skb);

/*
 * Function irlan_provider_control_data_indication (handle, skb)
 *
 *    This function gets the data that is received on the control channel
 *
 */
static int irlan_provider_data_indication(void *instance, void *sap,
					  struct sk_buff *skb)
{
	struct irlan_cb *self;
	__u8 code;

	self = instance;

	IRDA_ASSERT(self != NULL, return -1;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);

	IRDA_ASSERT(skb != NULL, return -1;);

	code = skb->data[0];
	switch(code) {
	case CMD_GET_PROVIDER_INFO:
		pr_debug("Got GET_PROVIDER_INFO command!\n");
		irlan_do_provider_event(self, IRLAN_GET_INFO_CMD, skb);
		break;

	case CMD_GET_MEDIA_CHAR:
		pr_debug("Got GET_MEDIA_CHAR command!\n");
		irlan_do_provider_event(self, IRLAN_GET_MEDIA_CMD, skb);
		break;
	case CMD_OPEN_DATA_CHANNEL:
		pr_debug("Got OPEN_DATA_CHANNEL command!\n");
		irlan_do_provider_event(self, IRLAN_OPEN_DATA_CMD, skb);
		break;
	case CMD_FILTER_OPERATION:
		pr_debug("Got FILTER_OPERATION command!\n");
		irlan_do_provider_event(self, IRLAN_FILTER_CONFIG_CMD, skb);
		break;
	case CMD_RECONNECT_DATA_CHAN:
		pr_debug("%s(), Got RECONNECT_DATA_CHAN command\n", __func__);
		pr_debug("%s(), NOT IMPLEMENTED\n", __func__);
		break;
	case CMD_CLOSE_DATA_CHAN:
		pr_debug("Got CLOSE_DATA_CHAN command!\n");
		pr_debug("%s(), NOT IMPLEMENTED\n", __func__);
		break;
	default:
		pr_debug("%s(), Unknown command!\n", __func__);
		break;
	}
	return 0;
}

/*
 * Function irlan_provider_connect_indication (handle, skb, priv)
 *
 *    Got connection from peer IrLAN client
 *
 */
static void irlan_provider_connect_indication(void *instance, void *sap,
					      struct qos_info *qos,
					      __u32 max_sdu_size,
					      __u8 max_header_size,
					      struct sk_buff *skb)
{
	struct irlan_cb *self;
	struct tsap_cb *tsap;

	self = instance;
	tsap = sap;

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);

	IRDA_ASSERT(tsap == self->provider.tsap_ctrl,return;);
	IRDA_ASSERT(self->provider.state == IRLAN_IDLE, return;);

	self->provider.max_sdu_size = max_sdu_size;
	self->provider.max_header_size = max_header_size;

	irlan_do_provider_event(self, IRLAN_CONNECT_INDICATION, NULL);

	/*
	 * If we are in peer mode, the client may not have got the discovery
	 * indication it needs to make progress. If the client is still in
	 * IDLE state, we must kick it.
	 */
	if ((self->provider.access_type == ACCESS_PEER) &&
	    (self->client.state == IRLAN_IDLE))
	{
		irlan_client_wakeup(self, self->saddr, self->daddr);
	}
}

/*
 * Function irlan_provider_connect_response (handle)
 *
 *    Accept incoming connection
 *
 */
void irlan_provider_connect_response(struct irlan_cb *self,
				     struct tsap_cb *tsap)
{
	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);

	/* Just accept */
	irttp_connect_response(tsap, IRLAN_MTU, NULL);
}

static void irlan_provider_disconnect_indication(void *instance, void *sap,
						 LM_REASON reason,
						 struct sk_buff *userdata)
{
	struct irlan_cb *self;
	struct tsap_cb *tsap;

	pr_debug("%s(), reason=%d\n", __func__ , reason);

	self = instance;
	tsap = sap;

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
	IRDA_ASSERT(tsap != NULL, return;);
	IRDA_ASSERT(tsap->magic == TTP_TSAP_MAGIC, return;);

	IRDA_ASSERT(tsap == self->provider.tsap_ctrl, return;);

	irlan_do_provider_event(self, IRLAN_LMP_DISCONNECT, NULL);
}

/*
 * Function irlan_parse_open_data_cmd (self, skb)
 *
 *
 *
 */
int irlan_parse_open_data_cmd(struct irlan_cb *self, struct sk_buff *skb)
{
	int ret;

	ret = irlan_provider_parse_command(self, CMD_OPEN_DATA_CHANNEL, skb);

	/* Open data channel */
	irlan_open_data_tsap(self);

	return ret;
}

/*
 * Function parse_command (skb)
 *
 *    Extract all parameters from received buffer, then feed them to
 *    check_params for parsing
 *
 */
int irlan_provider_parse_command(struct irlan_cb *self, int cmd,
				 struct sk_buff *skb)
{
	__u8 *frame;
	__u8 *ptr;
	int count;
	__u16 val_len;
	int i;
	char *name;
	char *value;
	int ret = RSP_SUCCESS;

	IRDA_ASSERT(skb != NULL, return -RSP_PROTOCOL_ERROR;);

	pr_debug("%s(), skb->len=%d\n", __func__ , (int)skb->len);

	IRDA_ASSERT(self != NULL, return -RSP_PROTOCOL_ERROR;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -RSP_PROTOCOL_ERROR;);

	if (!skb)
		return -RSP_PROTOCOL_ERROR;

	frame = skb->data;

	name = kmalloc(255, GFP_ATOMIC);
	if (!name)
		return -RSP_INSUFFICIENT_RESOURCES;
	value = kmalloc(1016, GFP_ATOMIC);
	if (!value) {
		kfree(name);
		return -RSP_INSUFFICIENT_RESOURCES;
	}

	/* How many parameters? */
	count = frame[1];

	pr_debug("Got %d parameters\n", count);

	ptr = frame+2;

	/* For all parameters */
	for (i=0; i<count;i++) {
		ret = irlan_extract_param(ptr, name, value, &val_len);
		if (ret < 0) {
			pr_debug("%s(), IrLAN, Error!\n", __func__);
			break;
		}
		ptr+=ret;
		ret = RSP_SUCCESS;
		irlan_check_command_param(self, name, value);
	}
	/* Cleanup */
	kfree(name);
	kfree(value);

	return ret;
}

/*
 * Function irlan_provider_send_reply (self, info)
 *
 *    Send reply to query to peer IrLAN layer
 *
 */
void irlan_provider_send_reply(struct irlan_cb *self, int command,
			       int ret_code)
{
	struct sk_buff *skb;

	IRDA_ASSERT(self != NULL, return;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);

	skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
			/* Bigger param length comes from CMD_GET_MEDIA_CHAR */
			IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "DIRECTED") +
			IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "BROADCAST") +
			IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "MULTICAST") +
			IRLAN_STRING_PARAMETER_LEN("ACCESS_TYPE", "HOSTED"),
			GFP_ATOMIC);

	if (!skb)
		return;

	/* Reserve space for TTP, LMP, and LAP header */
	skb_reserve(skb, self->provider.max_header_size);
	skb_put(skb, 2);

	switch (command) {
	case CMD_GET_PROVIDER_INFO:
		skb->data[0] = 0x00; /* Success */
		skb->data[1] = 0x02; /* 2 parameters */
		switch (self->media) {
		case MEDIA_802_3:
			irlan_insert_string_param(skb, "MEDIA", "802.3");
			break;
		case MEDIA_802_5:
			irlan_insert_string_param(skb, "MEDIA", "802.5");
			break;
		default:
			pr_debug("%s(), unknown media type!\n", __func__);
			break;
		}
		irlan_insert_short_param(skb, "IRLAN_VER", 0x0101);
		break;

	case CMD_GET_MEDIA_CHAR:
		skb->data[0] = 0x00; /* Success */
		skb->data[1] = 0x05; /* 5 parameters */
		irlan_insert_string_param(skb, "FILTER_TYPE", "DIRECTED");
		irlan_insert_string_param(skb, "FILTER_TYPE", "BROADCAST");
		irlan_insert_string_param(skb, "FILTER_TYPE", "MULTICAST");

		switch (self->provider.access_type) {
		case ACCESS_DIRECT:
			irlan_insert_string_param(skb, "ACCESS_TYPE", "DIRECT");
			break;
		case ACCESS_PEER:
			irlan_insert_string_param(skb, "ACCESS_TYPE", "PEER");
			break;
		case ACCESS_HOSTED:
			irlan_insert_string_param(skb, "ACCESS_TYPE", "HOSTED");
			break;
		default:
			pr_debug("%s(), Unknown access type\n", __func__);
			break;
		}
		irlan_insert_short_param(skb, "MAX_FRAME", 0x05ee);
		break;
	case CMD_OPEN_DATA_CHANNEL:
		skb->data[0] = 0x00; /* Success */
		if (self->provider.send_arb_val) {
			skb->data[1] = 0x03; /* 3 parameters */
			irlan_insert_short_param(skb, "CON_ARB",
						 self->provider.send_arb_val);
		} else
			skb->data[1] = 0x02; /* 2 parameters */
		irlan_insert_byte_param(skb, "DATA_CHAN", self->stsap_sel_data);
		irlan_insert_string_param(skb, "RECONNECT_KEY", "LINUX RULES!");
		break;
	case CMD_FILTER_OPERATION:
		irlan_filter_request(self, skb);
		break;
	default:
		pr_debug("%s(), Unknown command!\n", __func__);
		break;
	}

	irttp_data_request(self->provider.tsap_ctrl, skb);
}

/*
 * Function irlan_provider_register(void)
 *
 *    Register provider support so we can accept incoming connections.
 *
 */
int irlan_provider_open_ctrl_tsap(struct irlan_cb *self)
{
	struct tsap_cb *tsap;
	notify_t notify;

	IRDA_ASSERT(self != NULL, return -1;);
	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);

	/* Check if already open */
	if (self->provider.tsap_ctrl)
		return -1;

	/*
	 *  First register well known control TSAP
	 */
	irda_notify_init(&notify);
	notify.data_indication       = irlan_provider_data_indication;
	notify.connect_indication    = irlan_provider_connect_indication;
	notify.disconnect_indication = irlan_provider_disconnect_indication;
	notify.instance = self;
	strlcpy(notify.name, "IrLAN ctrl (p)", sizeof(notify.name));

	tsap = irttp_open_tsap(LSAP_ANY, 1, &notify);
	if (!tsap) {
		pr_debug("%s(), Got no tsap!\n", __func__);
		return -1;
	}
	self->provider.tsap_ctrl = tsap;

	/* Register with LM-IAS */
	irlan_ias_register(self, tsap->stsap_sel);

	return 0;
}
Commit	Line	Data
1da177e4	1	/*********************************************************************
6819bc2e	2	*
1da177e4 LT	3	* Filename: irlan_provider.c
	4	* Version: 0.9
	5	* Description: IrDA LAN Access Protocol Implementation
	6	* Status: Experimental.
	7	* Author: Dag Brattli <dagb@cs.uit.no>
	8	* Created at: Sun Aug 31 20:14:37 1997
	9	* Modified at: Sat Oct 30 12:52:10 1999
	10	* Modified by: Dag Brattli <dagb@cs.uit.no>
	11	* Sources: skeleton.c by Donald Becker <becker@CESDIS.gsfc.nasa.gov>
	12	* slip.c by Laurence Culhane, <loz@holmes.demon.co.uk>
	13	* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
6819bc2e YH	14	*
6819bc2e YH	15	* Copyright (c) 1998-1999 Dag Brattli <dagb@cs.uit.no>,
1da177e4	16	* All Rights Reserved.
6819bc2e YH	17	*
	18	* This program is free software; you can redistribute it and/or
	19	* modify it under the terms of the GNU General Public License as
	20	* published by the Free Software Foundation; either version 2 of
1da177e4 LT	21	* the License, or (at your option) any later version.
1da177e4 LT	22	*
96de0e25	23	* Neither Dag Brattli nor University of Tromsø admit liability nor
6819bc2e	24	* provide warranty for any of this software. This material is
1da177e4 LT	25	* provided "AS-IS" and at no charge.
	26	*
	27	********************************************************************/
	28
	29	#include <linux/kernel.h>
	30	#include <linux/string.h>
	31	#include <linux/errno.h>
	32	#include <linux/netdevice.h>
	33	#include <linux/etherdevice.h>
	34	#include <linux/init.h>
	35	#include <linux/random.h>
	36	#include <linux/bitops.h>
5a0e3ad6	37	#include <linux/slab.h>
1da177e4	38
1da177e4 LT	39	#include <asm/byteorder.h>
	40
	41	#include <net/irda/irda.h>
	42	#include <net/irda/irttp.h>
	43	#include <net/irda/irlmp.h>
	44	#include <net/irda/irias_object.h>
	45	#include <net/irda/iriap.h>
	46	#include <net/irda/timer.h>
	47
	48	#include <net/irda/irlan_common.h>
	49	#include <net/irda/irlan_eth.h>
	50	#include <net/irda/irlan_event.h>
	51	#include <net/irda/irlan_provider.h>
	52	#include <net/irda/irlan_filter.h>
	53	#include <net/irda/irlan_client.h>
	54
6819bc2e YH	55	static void irlan_provider_connect_indication(void instance, void sap,
6819bc2e YH	56	struct qos_info *qos,
1da177e4 LT	57	__u32 max_sdu_size,
	58	__u8 max_header_size,
	59	struct sk_buff *skb);
	60
	61	/*
	62	* Function irlan_provider_control_data_indication (handle, skb)
	63	*
	64	* This function gets the data that is received on the control channel
	65	*
	66	*/
6819bc2e YH	67	static int irlan_provider_data_indication(void instance, void sap,
6819bc2e YH	68	struct sk_buff *skb)
1da177e4 LT	69	{
	70	struct irlan_cb *self;
	71	__u8 code;
6819bc2e	72
ea110733	73	self = instance;
1da177e4 LT	74
	75	IRDA_ASSERT(self != NULL, return -1;);
	76	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
	77
	78	IRDA_ASSERT(skb != NULL, return -1;);
	79
	80	code = skb->data[0];
	81	switch(code) {
	82	case CMD_GET_PROVIDER_INFO:
955a9d20	83	pr_debug("Got GET_PROVIDER_INFO command!\n");
6819bc2e	84	irlan_do_provider_event(self, IRLAN_GET_INFO_CMD, skb);
1da177e4 LT	85	break;
	86
	87	case CMD_GET_MEDIA_CHAR:
955a9d20	88	pr_debug("Got GET_MEDIA_CHAR command!\n");
6819bc2e	89	irlan_do_provider_event(self, IRLAN_GET_MEDIA_CMD, skb);
1da177e4 LT	90	break;
1da177e4 LT	91	case CMD_OPEN_DATA_CHANNEL:
955a9d20	92	pr_debug("Got OPEN_DATA_CHANNEL command!\n");
6819bc2e	93	irlan_do_provider_event(self, IRLAN_OPEN_DATA_CMD, skb);
1da177e4 LT	94	break;
1da177e4 LT	95	case CMD_FILTER_OPERATION:
955a9d20	96	pr_debug("Got FILTER_OPERATION command!\n");
1da177e4 LT	97	irlan_do_provider_event(self, IRLAN_FILTER_CONFIG_CMD, skb);
	98	break;
	99	case CMD_RECONNECT_DATA_CHAN:
955a9d20 JP	100	pr_debug("%s(), Got RECONNECT_DATA_CHAN command\n", __func__);
955a9d20 JP	101	pr_debug("%s(), NOT IMPLEMENTED\n", __func__);
1da177e4 LT	102	break;
1da177e4 LT	103	case CMD_CLOSE_DATA_CHAN:
955a9d20 JP	104	pr_debug("Got CLOSE_DATA_CHAN command!\n");
955a9d20 JP	105	pr_debug("%s(), NOT IMPLEMENTED\n", __func__);
1da177e4 LT	106	break;
1da177e4 LT	107	default:
955a9d20	108	pr_debug("%s(), Unknown command!\n", __func__);
1da177e4 LT	109	break;
	110	}
	111	return 0;
	112	}
	113
	114	/*
	115	* Function irlan_provider_connect_indication (handle, skb, priv)
	116	*
	117	* Got connection from peer IrLAN client
	118	*
	119	*/
6819bc2e	120	static void irlan_provider_connect_indication(void instance, void sap,
1da177e4	121	struct qos_info *qos,
6819bc2e	122	__u32 max_sdu_size,
1da177e4 LT	123	__u8 max_header_size,
	124	struct sk_buff *skb)
	125	{
	126	struct irlan_cb *self;
	127	struct tsap_cb *tsap;
1da177e4	128
ea110733 JP	129	self = instance;
ea110733 JP	130	tsap = sap;
6819bc2e	131
1da177e4 LT	132	IRDA_ASSERT(self != NULL, return;);
1da177e4 LT	133	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
6819bc2e	134
1da177e4 LT	135	IRDA_ASSERT(tsap == self->provider.tsap_ctrl,return;);
	136	IRDA_ASSERT(self->provider.state == IRLAN_IDLE, return;);
	137
1da177e4 LT	138	self->provider.max_sdu_size = max_sdu_size;
	139	self->provider.max_header_size = max_header_size;
	140
	141	irlan_do_provider_event(self, IRLAN_CONNECT_INDICATION, NULL);
	142
6819bc2e	143	/*
1da177e4	144	* If we are in peer mode, the client may not have got the discovery
6819bc2e YH	145	* indication it needs to make progress. If the client is still in
6819bc2e YH	146	* IDLE state, we must kick it.
1da177e4	147	*/
6819bc2e YH	148	if ((self->provider.access_type == ACCESS_PEER) &&
6819bc2e YH	149	(self->client.state == IRLAN_IDLE))
1da177e4 LT	150	{
	151	irlan_client_wakeup(self, self->saddr, self->daddr);
	152	}
	153	}
	154
	155	/*
	156	* Function irlan_provider_connect_response (handle)
	157	*
	158	* Accept incoming connection
	159	*
	160	*/
	161	void irlan_provider_connect_response(struct irlan_cb *self,
	162	struct tsap_cb *tsap)
	163	{
	164	IRDA_ASSERT(self != NULL, return;);
	165	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
	166
	167	/* Just accept */
	168	irttp_connect_response(tsap, IRLAN_MTU, NULL);
	169	}
	170
6819bc2e YH	171	static void irlan_provider_disconnect_indication(void instance, void sap,
	172	LM_REASON reason,
	173	struct sk_buff *userdata)
1da177e4 LT	174	{
	175	struct irlan_cb *self;
	176	struct tsap_cb *tsap;
	177
955a9d20	178	pr_debug("%s(), reason=%d\n", __func__ , reason);
6819bc2e	179
ea110733 JP	180	self = instance;
ea110733 JP	181	tsap = sap;
1da177e4 LT	182
1da177e4 LT	183	IRDA_ASSERT(self != NULL, return;);
6819bc2e	184	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
1da177e4 LT	185	IRDA_ASSERT(tsap != NULL, return;);
1da177e4 LT	186	IRDA_ASSERT(tsap->magic == TTP_TSAP_MAGIC, return;);
6819bc2e	187
1da177e4	188	IRDA_ASSERT(tsap == self->provider.tsap_ctrl, return;);
6819bc2e	189
1da177e4 LT	190	irlan_do_provider_event(self, IRLAN_LMP_DISCONNECT, NULL);
	191	}
	192
	193	/*
	194	* Function irlan_parse_open_data_cmd (self, skb)
	195	*
6819bc2e	196	*
1da177e4 LT	197	*
	198	*/
	199	int irlan_parse_open_data_cmd(struct irlan_cb self, struct sk_buff skb)
	200	{
	201	int ret;
6819bc2e	202
1da177e4 LT	203	ret = irlan_provider_parse_command(self, CMD_OPEN_DATA_CHANNEL, skb);
	204
	205	/* Open data channel */
	206	irlan_open_data_tsap(self);
	207
	208	return ret;
	209	}
	210
	211	/*
	212	* Function parse_command (skb)
	213	*
6819bc2e	214	* Extract all parameters from received buffer, then feed them to
1da177e4 LT	215	* check_params for parsing
	216	*
	217	*/
	218	int irlan_provider_parse_command(struct irlan_cb *self, int cmd,
6819bc2e	219	struct sk_buff *skb)
1da177e4 LT	220	{
	221	__u8 *frame;
	222	__u8 *ptr;
	223	int count;
	224	__u16 val_len;
	225	int i;
	226	char *name;
6819bc2e	227	char *value;
1da177e4	228	int ret = RSP_SUCCESS;
6819bc2e	229
1da177e4	230	IRDA_ASSERT(skb != NULL, return -RSP_PROTOCOL_ERROR;);
6819bc2e	231
955a9d20	232	pr_debug("%s(), skb->len=%d\n", __func__ , (int)skb->len);
1da177e4 LT	233
	234	IRDA_ASSERT(self != NULL, return -RSP_PROTOCOL_ERROR;);
	235	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -RSP_PROTOCOL_ERROR;);
6819bc2e	236
1da177e4 LT	237	if (!skb)
	238	return -RSP_PROTOCOL_ERROR;
	239
	240	frame = skb->data;
	241
	242	name = kmalloc(255, GFP_ATOMIC);
	243	if (!name)
	244	return -RSP_INSUFFICIENT_RESOURCES;
	245	value = kmalloc(1016, GFP_ATOMIC);
	246	if (!value) {
	247	kfree(name);
	248	return -RSP_INSUFFICIENT_RESOURCES;
	249	}
	250
	251	/* How many parameters? */
	252	count = frame[1];
	253
955a9d20	254	pr_debug("Got %d parameters\n", count);
6819bc2e	255
1da177e4	256	ptr = frame+2;
6819bc2e	257
1da177e4	258	/* For all parameters */
6819bc2e	259	for (i=0; i<count;i++) {
1da177e4 LT	260	ret = irlan_extract_param(ptr, name, value, &val_len);
1da177e4 LT	261	if (ret < 0) {
955a9d20	262	pr_debug("%s(), IrLAN, Error!\n", __func__);
1da177e4 LT	263	break;
	264	}
	265	ptr+=ret;
	266	ret = RSP_SUCCESS;
	267	irlan_check_command_param(self, name, value);
	268	}
	269	/* Cleanup */
	270	kfree(name);
	271	kfree(value);
	272
	273	return ret;
	274	}
	275
	276	/*
	277	* Function irlan_provider_send_reply (self, info)
	278	*
	279	* Send reply to query to peer IrLAN layer
	280	*
	281	*/
6819bc2e	282	void irlan_provider_send_reply(struct irlan_cb *self, int command,
1da177e4 LT	283	int ret_code)
	284	{
	285	struct sk_buff *skb;
	286
1da177e4 LT	287	IRDA_ASSERT(self != NULL, return;);
	288	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
	289
1b0fee7d SO	290	skb = alloc_skb(IRLAN_MAX_HEADER + IRLAN_CMD_HEADER +
	291	/* Bigger param length comes from CMD_GET_MEDIA_CHAR */
	292	IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "DIRECTED") +
ad8c9453	293	IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "BROADCAST") +
1b0fee7d SO	294	IRLAN_STRING_PARAMETER_LEN("FILTER_TYPE", "MULTICAST") +
	295	IRLAN_STRING_PARAMETER_LEN("ACCESS_TYPE", "HOSTED"),
	296	GFP_ATOMIC);
	297
1da177e4 LT	298	if (!skb)
	299	return;
	300
	301	/* Reserve space for TTP, LMP, and LAP header */
	302	skb_reserve(skb, self->provider.max_header_size);
	303	skb_put(skb, 2);
6819bc2e	304
1da177e4 LT	305	switch (command) {
	306	case CMD_GET_PROVIDER_INFO:
	307	skb->data[0] = 0x00; /* Success */
	308	skb->data[1] = 0x02; /* 2 parameters */
	309	switch (self->media) {
	310	case MEDIA_802_3:
	311	irlan_insert_string_param(skb, "MEDIA", "802.3");
	312	break;
	313	case MEDIA_802_5:
	314	irlan_insert_string_param(skb, "MEDIA", "802.5");
	315	break;
	316	default:
955a9d20	317	pr_debug("%s(), unknown media type!\n", __func__);
1da177e4 LT	318	break;
	319	}
	320	irlan_insert_short_param(skb, "IRLAN_VER", 0x0101);
	321	break;
	322
	323	case CMD_GET_MEDIA_CHAR:
	324	skb->data[0] = 0x00; /* Success */
	325	skb->data[1] = 0x05; /* 5 parameters */
	326	irlan_insert_string_param(skb, "FILTER_TYPE", "DIRECTED");
	327	irlan_insert_string_param(skb, "FILTER_TYPE", "BROADCAST");
	328	irlan_insert_string_param(skb, "FILTER_TYPE", "MULTICAST");
	329
	330	switch (self->provider.access_type) {
	331	case ACCESS_DIRECT:
	332	irlan_insert_string_param(skb, "ACCESS_TYPE", "DIRECT");
	333	break;
	334	case ACCESS_PEER:
	335	irlan_insert_string_param(skb, "ACCESS_TYPE", "PEER");
	336	break;
	337	case ACCESS_HOSTED:
	338	irlan_insert_string_param(skb, "ACCESS_TYPE", "HOSTED");
	339	break;
	340	default:
955a9d20	341	pr_debug("%s(), Unknown access type\n", __func__);
1da177e4 LT	342	break;
	343	}
	344	irlan_insert_short_param(skb, "MAX_FRAME", 0x05ee);
	345	break;
	346	case CMD_OPEN_DATA_CHANNEL:
	347	skb->data[0] = 0x00; /* Success */
	348	if (self->provider.send_arb_val) {
	349	skb->data[1] = 0x03; /* 3 parameters */
6819bc2e	350	irlan_insert_short_param(skb, "CON_ARB",
1da177e4 LT	351	self->provider.send_arb_val);
	352	} else
	353	skb->data[1] = 0x02; /* 2 parameters */
	354	irlan_insert_byte_param(skb, "DATA_CHAN", self->stsap_sel_data);
1b0fee7d	355	irlan_insert_string_param(skb, "RECONNECT_KEY", "LINUX RULES!");
1da177e4 LT	356	break;
	357	case CMD_FILTER_OPERATION:
	358	irlan_filter_request(self, skb);
	359	break;
	360	default:
955a9d20	361	pr_debug("%s(), Unknown command!\n", __func__);
1da177e4 LT	362	break;
	363	}
	364
	365	irttp_data_request(self->provider.tsap_ctrl, skb);
	366	}
	367
	368	/*
	369	* Function irlan_provider_register(void)
	370	*
	371	* Register provider support so we can accept incoming connections.
6819bc2e	372	*
1da177e4 LT	373	*/
	374	int irlan_provider_open_ctrl_tsap(struct irlan_cb *self)
	375	{
	376	struct tsap_cb *tsap;
	377	notify_t notify;
6819bc2e	378
1da177e4 LT	379	IRDA_ASSERT(self != NULL, return -1;);
	380	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
	381
	382	/* Check if already open */
	383	if (self->provider.tsap_ctrl)
	384	return -1;
6819bc2e	385
1da177e4 LT	386	/*
	387	* First register well known control TSAP
	388	*/
	389	irda_notify_init(&notify);
	390	notify.data_indication = irlan_provider_data_indication;
	391	notify.connect_indication = irlan_provider_connect_indication;
	392	notify.disconnect_indication = irlan_provider_disconnect_indication;
	393	notify.instance = self;
	394	strlcpy(notify.name, "IrLAN ctrl (p)", sizeof(notify.name));
	395
	396	tsap = irttp_open_tsap(LSAP_ANY, 1, &notify);
	397	if (!tsap) {
955a9d20	398	pr_debug("%s(), Got no tsap!\n", __func__);
1da177e4 LT	399	return -1;
	400	}
	401	self->provider.tsap_ctrl = tsap;
	402
	403	/* Register with LM-IAS */
	404	irlan_ias_register(self, tsap->stsap_sel);
	405
	406	return 0;
	407	}
	408