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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
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14
net/irda/irlan/Kconfig Normal file
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config IRLAN
tristate "IrLAN protocol"
depends on IRDA
help
Say Y here if you want to build support for the IrLAN protocol.
To compile it as a module, choose M here: the module will be called
irlan. IrLAN emulates an Ethernet and makes it possible to put up
a wireless LAN using infrared beams.
The IrLAN protocol can be used to talk with infrared access points
like the HP NetbeamIR, or the ESI JetEye NET. You can also connect
to another Linux machine running the IrLAN protocol for ad-hoc
networking!

7
net/irda/irlan/Makefile Normal file
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#
# Makefile for the Linux IrDA IrLAN protocol layer.
#
obj-$(CONFIG_IRLAN) += irlan.o
irlan-y := irlan_common.o irlan_eth.o irlan_event.o irlan_client.o irlan_provider.o irlan_filter.o irlan_provider_event.o irlan_client_event.o

575
net/irda/irlan/irlan_client.c Normal file
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/*********************************************************************
*
* Filename: irlan_client.c
* Version: 0.9
* Description: IrDA LAN Access Protocol (IrLAN) Client
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Sun Aug 31 20:14:37 1997
* Modified at: Tue Dec 14 15:47:02 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/slab.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <linux/bitops.h>
#include <net/arp.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_event.h>
#include <net/irda/irlan_eth.h>
#include <net/irda/irlan_provider.h>
#include <net/irda/irlan_client.h>
#undef CONFIG_IRLAN_GRATUITOUS_ARP
static void irlan_client_ctrl_disconnect_indication(void *instance, void *sap,
LM_REASON reason,
struct sk_buff *);
static int irlan_client_ctrl_data_indication(void *instance, void *sap,
struct sk_buff *skb);
static void irlan_client_ctrl_connect_confirm(void *instance, void *sap,
struct qos_info *qos,
__u32 max_sdu_size,
__u8 max_header_size,
struct sk_buff *);
static void irlan_check_response_param(struct irlan_cb *self, char *param,
char *value, int val_len);
static void irlan_client_open_ctrl_tsap(struct irlan_cb *self);
static void irlan_client_kick_timer_expired(void *data)
{
struct irlan_cb *self = (struct irlan_cb *) data;
IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
/*
* 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 to, but only if the provider is not IDLE
*/
if ((self->provider.access_type == ACCESS_PEER) &&
(self->client.state == IRLAN_IDLE) &&
(self->provider.state != IRLAN_IDLE)) {
irlan_client_wakeup(self, self->saddr, self->daddr);
}
}
static void irlan_client_start_kick_timer(struct irlan_cb *self, int timeout)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
irda_start_timer(&self->client.kick_timer, timeout, (void *) self,
irlan_client_kick_timer_expired);
}
/*
* Function irlan_client_wakeup (self, saddr, daddr)
*
* Wake up client
*
*/
void irlan_client_wakeup(struct irlan_cb *self, __u32 saddr, __u32 daddr)
{
IRDA_DEBUG(1, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
/*
* Check if we are already awake, or if we are a provider in direct
* mode (in that case we must leave the client idle
*/
if ((self->client.state != IRLAN_IDLE) ||
(self->provider.access_type == ACCESS_DIRECT))
{
IRDA_DEBUG(0, "%s(), already awake!\n", __func__ );
return;
}
/* Addresses may have changed! */
self->saddr = saddr;
self->daddr = daddr;
if (self->disconnect_reason == LM_USER_REQUEST) {
IRDA_DEBUG(0, "%s(), still stopped by user\n", __func__ );
return;
}
/* Open TSAPs */
irlan_client_open_ctrl_tsap(self);
irlan_open_data_tsap(self);
irlan_do_client_event(self, IRLAN_DISCOVERY_INDICATION, NULL);
/* Start kick timer */
irlan_client_start_kick_timer(self, 2*HZ);
}
/*
* Function irlan_discovery_indication (daddr)
*
* Remote device with IrLAN server support discovered
*
*/
void irlan_client_discovery_indication(discinfo_t *discovery,
DISCOVERY_MODE mode,
void *priv)
{
struct irlan_cb *self;
__u32 saddr, daddr;
IRDA_DEBUG(1, "%s()\n", __func__ );
IRDA_ASSERT(discovery != NULL, return;);
/*
* I didn't check it, but I bet that IrLAN suffer from the same
* deficiency as IrComm and doesn't handle two instances
* simultaneously connecting to each other.
* Same workaround, drop passive discoveries.
* Jean II */
if(mode == DISCOVERY_PASSIVE)
return;
saddr = discovery->saddr;
daddr = discovery->daddr;
/* Find instance */
rcu_read_lock();
self = irlan_get_any();
if (self) {
IRDA_ASSERT(self->magic == IRLAN_MAGIC, goto out;);
IRDA_DEBUG(1, "%s(), Found instance (%08x)!\n", __func__ ,
daddr);
irlan_client_wakeup(self, saddr, daddr);
}
IRDA_ASSERT_LABEL(out:)
rcu_read_unlock();
}
/*
* Function irlan_client_data_indication (handle, skb)
*
* This function gets the data that is received on the control channel
*
*/
static int irlan_client_ctrl_data_indication(void *instance, void *sap,
struct sk_buff *skb)
{
struct irlan_cb *self;
IRDA_DEBUG(2, "%s()\n", __func__ );
self = instance;
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
IRDA_ASSERT(skb != NULL, return -1;);
irlan_do_client_event(self, IRLAN_DATA_INDICATION, skb);
/* Ready for a new command */
IRDA_DEBUG(2, "%s(), clearing tx_busy\n", __func__ );
self->client.tx_busy = FALSE;
/* Check if we have some queued commands waiting to be sent */
irlan_run_ctrl_tx_queue(self);
return 0;
}
static void irlan_client_ctrl_disconnect_indication(void *instance, void *sap,
LM_REASON reason,
struct sk_buff *userdata)
{
struct irlan_cb *self;
struct tsap_cb *tsap;
struct sk_buff *skb;
IRDA_DEBUG(4, "%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->client.tsap_ctrl, return;);
/* Remove frames queued on the control channel */
while ((skb = skb_dequeue(&self->client.txq)) != NULL) {
dev_kfree_skb(skb);
}
self->client.tx_busy = FALSE;
irlan_do_client_event(self, IRLAN_LMP_DISCONNECT, NULL);
}
/*
* Function irlan_client_open_tsaps (self)
*
* Initialize callbacks and open IrTTP TSAPs
*
*/
static void irlan_client_open_ctrl_tsap(struct irlan_cb *self)
{
struct tsap_cb *tsap;
notify_t notify;
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
/* Check if already open */
if (self->client.tsap_ctrl)
return;
irda_notify_init(&notify);
/* Set up callbacks */
notify.data_indication = irlan_client_ctrl_data_indication;
notify.connect_confirm = irlan_client_ctrl_connect_confirm;
notify.disconnect_indication = irlan_client_ctrl_disconnect_indication;
notify.instance = self;
strlcpy(notify.name, "IrLAN ctrl (c)", sizeof(notify.name));
tsap = irttp_open_tsap(LSAP_ANY, DEFAULT_INITIAL_CREDIT, &notify);
if (!tsap) {
IRDA_DEBUG(2, "%s(), Got no tsap!\n", __func__ );
return;
}
self->client.tsap_ctrl = tsap;
}
/*
* Function irlan_client_connect_confirm (handle, skb)
*
* Connection to peer IrLAN laye confirmed
*
*/
static void irlan_client_ctrl_connect_confirm(void *instance, void *sap,
struct qos_info *qos,
__u32 max_sdu_size,
__u8 max_header_size,
struct sk_buff *skb)
{
struct irlan_cb *self;
IRDA_DEBUG(4, "%s()\n", __func__ );
self = instance;
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
self->client.max_sdu_size = max_sdu_size;
self->client.max_header_size = max_header_size;
/* TODO: we could set the MTU depending on the max_sdu_size */
irlan_do_client_event(self, IRLAN_CONNECT_COMPLETE, NULL);
}
/*
* Function print_ret_code (code)
*
* Print return code of request to peer IrLAN layer.
*
*/
static void print_ret_code(__u8 code)
{
switch(code) {
case 0:
printk(KERN_INFO "Success\n");
break;
case 1:
IRDA_WARNING("IrLAN: Insufficient resources\n");
break;
case 2:
IRDA_WARNING("IrLAN: Invalid command format\n");
break;
case 3:
IRDA_WARNING("IrLAN: Command not supported\n");
break;
case 4:
IRDA_WARNING("IrLAN: Parameter not supported\n");
break;
case 5:
IRDA_WARNING("IrLAN: Value not supported\n");
break;
case 6:
IRDA_WARNING("IrLAN: Not open\n");
break;
case 7:
IRDA_WARNING("IrLAN: Authentication required\n");
break;
case 8:
IRDA_WARNING("IrLAN: Invalid password\n");
break;
case 9:
IRDA_WARNING("IrLAN: Protocol error\n");
break;
case 255:
IRDA_WARNING("IrLAN: Asynchronous status\n");
break;
}
}
/*
* Function irlan_client_parse_response (self, skb)
*
* Extract all parameters from received buffer, then feed them to
* check_params for parsing
*/
void irlan_client_parse_response(struct irlan_cb *self, struct sk_buff *skb)
{
__u8 *frame;
__u8 *ptr;
int count;
int ret;
__u16 val_len;
int i;
char *name;
char *value;
IRDA_ASSERT(skb != NULL, return;);
IRDA_DEBUG(4, "%s() skb->len=%d\n", __func__ , (int) skb->len);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
if (!skb) {
IRDA_ERROR("%s(), Got NULL skb!\n", __func__);
return;
}
frame = skb->data;
/*
* Check return code and print it if not success
*/
if (frame[0]) {
print_ret_code(frame[0]);
return;
}
name = kmalloc(255, GFP_ATOMIC);
if (!name)
return;
value = kmalloc(1016, GFP_ATOMIC);
if (!value) {
kfree(name);
return;
}
/* How many parameters? */
count = frame[1];
IRDA_DEBUG(4, "%s(), got %d parameters\n", __func__ , 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) {
IRDA_DEBUG(2, "%s(), IrLAN, Error!\n", __func__ );
break;
}
ptr += ret;
irlan_check_response_param(self, name, value, val_len);
}
/* Cleanup */
kfree(name);
kfree(value);
}
/*
* Function irlan_check_response_param (self, param, value, val_len)
*
* Check which parameter is received and update local variables
*
*/
static void irlan_check_response_param(struct irlan_cb *self, char *param,
char *value, int val_len)
{
__u16 tmp_cpu; /* Temporary value in host order */
__u8 *bytes;
int i;
IRDA_DEBUG(4, "%s(), parm=%s\n", __func__ , param);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
/* Media type */
if (strcmp(param, "MEDIA") == 0) {
if (strcmp(value, "802.3") == 0)
self->media = MEDIA_802_3;
else
self->media = MEDIA_802_5;
return;
}
if (strcmp(param, "FILTER_TYPE") == 0) {
if (strcmp(value, "DIRECTED") == 0)
self->client.filter_type |= IRLAN_DIRECTED;
else if (strcmp(value, "FUNCTIONAL") == 0)
self->client.filter_type |= IRLAN_FUNCTIONAL;
else if (strcmp(value, "GROUP") == 0)
self->client.filter_type |= IRLAN_GROUP;
else if (strcmp(value, "MAC_FRAME") == 0)
self->client.filter_type |= IRLAN_MAC_FRAME;
else if (strcmp(value, "MULTICAST") == 0)
self->client.filter_type |= IRLAN_MULTICAST;
else if (strcmp(value, "BROADCAST") == 0)
self->client.filter_type |= IRLAN_BROADCAST;
else if (strcmp(value, "IPX_SOCKET") == 0)
self->client.filter_type |= IRLAN_IPX_SOCKET;
}
if (strcmp(param, "ACCESS_TYPE") == 0) {
if (strcmp(value, "DIRECT") == 0)
self->client.access_type = ACCESS_DIRECT;
else if (strcmp(value, "PEER") == 0)
self->client.access_type = ACCESS_PEER;
else if (strcmp(value, "HOSTED") == 0)
self->client.access_type = ACCESS_HOSTED;
else {
IRDA_DEBUG(2, "%s(), unknown access type!\n", __func__ );
}
}
/* IRLAN version */
if (strcmp(param, "IRLAN_VER") == 0) {
IRDA_DEBUG(4, "IrLAN version %d.%d\n", (__u8) value[0],
(__u8) value[1]);
self->version[0] = value[0];
self->version[1] = value[1];
return;
}
/* Which remote TSAP to use for data channel */
if (strcmp(param, "DATA_CHAN") == 0) {
self->dtsap_sel_data = value[0];
IRDA_DEBUG(4, "Data TSAP = %02x\n", self->dtsap_sel_data);
return;
}
if (strcmp(param, "CON_ARB") == 0) {
memcpy(&tmp_cpu, value, 2); /* Align value */
le16_to_cpus(&tmp_cpu); /* Convert to host order */
self->client.recv_arb_val = tmp_cpu;
IRDA_DEBUG(2, "%s(), receive arb val=%d\n", __func__ ,
self->client.recv_arb_val);
}
if (strcmp(param, "MAX_FRAME") == 0) {
memcpy(&tmp_cpu, value, 2); /* Align value */
le16_to_cpus(&tmp_cpu); /* Convert to host order */
self->client.max_frame = tmp_cpu;
IRDA_DEBUG(4, "%s(), max frame=%d\n", __func__ ,
self->client.max_frame);
}
/* RECONNECT_KEY, in case the link goes down! */
if (strcmp(param, "RECONNECT_KEY") == 0) {
IRDA_DEBUG(4, "Got reconnect key: ");
/* for (i = 0; i < val_len; i++) */
/* printk("%02x", value[i]); */
memcpy(self->client.reconnect_key, value, val_len);
self->client.key_len = val_len;
IRDA_DEBUG(4, "\n");
}
/* FILTER_ENTRY, have we got an ethernet address? */
if (strcmp(param, "FILTER_ENTRY") == 0) {
bytes = value;
IRDA_DEBUG(4, "Ethernet address = %pM\n", bytes);
for (i = 0; i < 6; i++)
self->dev->dev_addr[i] = bytes[i];
}
}
/*
* Function irlan_client_get_value_confirm (obj_id, value)
*
* Got results from remote LM-IAS
*
*/
void irlan_client_get_value_confirm(int result, __u16 obj_id,
struct ias_value *value, void *priv)
{
struct irlan_cb *self;
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(priv != NULL, return;);
self = priv;
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
/* We probably don't need to make any more queries */
iriap_close(self->client.iriap);
self->client.iriap = NULL;
/* Check if request succeeded */
if (result != IAS_SUCCESS) {
IRDA_DEBUG(2, "%s(), got NULL value!\n", __func__ );
irlan_do_client_event(self, IRLAN_IAS_PROVIDER_NOT_AVAIL,
NULL);
return;
}
switch (value->type) {
case IAS_INTEGER:
self->dtsap_sel_ctrl = value->t.integer;
if (value->t.integer != -1) {
irlan_do_client_event(self, IRLAN_IAS_PROVIDER_AVAIL,
NULL);
return;
}
irias_delete_value(value);
break;
default:
IRDA_DEBUG(2, "%s(), unknown type!\n", __func__ );
break;
}
irlan_do_client_event(self, IRLAN_IAS_PROVIDER_NOT_AVAIL, NULL);
}

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net/irda/irlan/irlan_client_event.c Normal file
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/*********************************************************************
*
* Filename: irlan_client_event.c
* Version: 0.9
* Description: IrLAN client state machine
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Sun Aug 31 20:14:37 1997
* Modified at: Sun Dec 26 21:52:24 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* 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/skbuff.h>
#include <net/irda/irda.h>
#include <net/irda/timer.h>
#include <net/irda/irmod.h>
#include <net/irda/iriap.h>
#include <net/irda/irlmp.h>
#include <net/irda/irttp.h>
#include <net/irda/irlan_common.h>
#include <net/irda/irlan_client.h>
#include <net/irda/irlan_event.h>
static int irlan_client_state_idle (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_query(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_conn (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_info (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_media(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_open (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_wait (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_arb (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_data (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_close(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_client_state_sync (struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int (*state[])(struct irlan_cb *, IRLAN_EVENT event, struct sk_buff *) =
{
irlan_client_state_idle,
irlan_client_state_query,
irlan_client_state_conn,
irlan_client_state_info,
irlan_client_state_media,
irlan_client_state_open,
irlan_client_state_wait,
irlan_client_state_arb,
irlan_client_state_data,
irlan_client_state_close,
irlan_client_state_sync
};
void irlan_do_client_event(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
(*state[ self->client.state]) (self, event, skb);
}
/*
* Function irlan_client_state_idle (event, skb, info)
*
* IDLE, We are waiting for an indication that there is a provider
* available.
*/
static int irlan_client_state_idle(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
switch (event) {
case IRLAN_DISCOVERY_INDICATION:
if (self->client.iriap) {
IRDA_WARNING("%s(), busy with a previous query\n",
__func__);
return -EBUSY;
}
self->client.iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
irlan_client_get_value_confirm);
/* Get some values from peer IAS */
irlan_next_client_state(self, IRLAN_QUERY);
iriap_getvaluebyclass_request(self->client.iriap,
self->saddr, self->daddr,
"IrLAN", "IrDA:TinyTP:LsapSel");
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(4, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_query (event, skb, info)
*
* QUERY, We have queryed the remote IAS and is ready to connect
* to provider, just waiting for the confirm.
*
*/
static int irlan_client_state_query(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
switch(event) {
case IRLAN_IAS_PROVIDER_AVAIL:
IRDA_ASSERT(self->dtsap_sel_ctrl != 0, return -1;);
self->client.open_retries = 0;
irttp_connect_request(self->client.tsap_ctrl,
self->dtsap_sel_ctrl,
self->saddr, self->daddr, NULL,
IRLAN_MTU, NULL);
irlan_next_client_state(self, IRLAN_CONN);
break;
case IRLAN_IAS_PROVIDER_NOT_AVAIL:
IRDA_DEBUG(2, "%s(), IAS_PROVIDER_NOT_AVAIL\n", __func__ );
irlan_next_client_state(self, IRLAN_IDLE);
/* Give the client a kick! */
if ((self->provider.access_type == ACCESS_PEER) &&
(self->provider.state != IRLAN_IDLE))
irlan_client_wakeup(self, self->saddr, self->daddr);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_conn (event, skb, info)
*
* CONN, We have connected to a provider but has not issued any
* commands yet.
*
*/
static int irlan_client_state_conn(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch (event) {
case IRLAN_CONNECT_COMPLETE:
/* Send getinfo cmd */
irlan_get_provider_info(self);
irlan_next_client_state(self, IRLAN_INFO);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_info (self, event, skb, info)
*
* INFO, We have issued a GetInfo command and is awaiting a reply.
*/
static int irlan_client_state_info(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch (event) {
case IRLAN_DATA_INDICATION:
IRDA_ASSERT(skb != NULL, return -1;);
irlan_client_parse_response(self, skb);
irlan_next_client_state(self, IRLAN_MEDIA);
irlan_get_media_char(self);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_media (self, event, skb, info)
*
* MEDIA, The irlan_client has issued a GetMedia command and is awaiting a
* reply.
*
*/
static int irlan_client_state_media(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_DATA_INDICATION:
irlan_client_parse_response(self, skb);
irlan_open_data_channel(self);
irlan_next_client_state(self, IRLAN_OPEN);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_open (self, event, skb, info)
*
* OPEN, The irlan_client has issued a OpenData command and is awaiting a
* reply
*
*/
static int irlan_client_state_open(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
struct qos_info qos;
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_DATA_INDICATION:
irlan_client_parse_response(self, skb);
/*
* Check if we have got the remote TSAP for data
* communications
*/
IRDA_ASSERT(self->dtsap_sel_data != 0, return -1;);
/* Check which access type we are dealing with */
switch (self->client.access_type) {
case ACCESS_PEER:
if (self->provider.state == IRLAN_OPEN) {
irlan_next_client_state(self, IRLAN_ARB);
irlan_do_client_event(self, IRLAN_CHECK_CON_ARB,
NULL);
} else {
irlan_next_client_state(self, IRLAN_WAIT);
}
break;
case ACCESS_DIRECT:
case ACCESS_HOSTED:
qos.link_disc_time.bits = 0x01; /* 3 secs */
irttp_connect_request(self->tsap_data,
self->dtsap_sel_data,
self->saddr, self->daddr, &qos,
IRLAN_MTU, NULL);
irlan_next_client_state(self, IRLAN_DATA);
break;
default:
IRDA_DEBUG(2, "%s(), unknown access type!\n", __func__ );
break;
}
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_wait (self, event, skb, info)
*
* WAIT, The irlan_client is waiting for the local provider to enter the
* provider OPEN state.
*
*/
static int irlan_client_state_wait(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_PROVIDER_SIGNAL:
irlan_next_client_state(self, IRLAN_ARB);
irlan_do_client_event(self, IRLAN_CHECK_CON_ARB, NULL);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
static int irlan_client_state_arb(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
struct qos_info qos;
IRDA_DEBUG(2, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_CHECK_CON_ARB:
if (self->client.recv_arb_val == self->provider.send_arb_val) {
irlan_next_client_state(self, IRLAN_CLOSE);
irlan_close_data_channel(self);
} else if (self->client.recv_arb_val <
self->provider.send_arb_val)
{
qos.link_disc_time.bits = 0x01; /* 3 secs */
irlan_next_client_state(self, IRLAN_DATA);
irttp_connect_request(self->tsap_data,
self->dtsap_sel_data,
self->saddr, self->daddr, &qos,
IRLAN_MTU, NULL);
} else if (self->client.recv_arb_val >
self->provider.send_arb_val)
{
IRDA_DEBUG(2, "%s(), lost the battle :-(\n", __func__ );
}
break;
case IRLAN_DATA_CONNECT_INDICATION:
irlan_next_client_state(self, IRLAN_DATA);
break;
case IRLAN_LMP_DISCONNECT:
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
case IRLAN_WATCHDOG_TIMEOUT:
IRDA_DEBUG(2, "%s(), IRLAN_WATCHDOG_TIMEOUT\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_data (self, event, skb, info)
*
* DATA, The data channel is connected, allowing data transfers between
* the local and remote machines.
*
*/
static int irlan_client_state_data(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
switch(event) {
case IRLAN_DATA_INDICATION:
irlan_client_parse_response(self, skb);
break;
case IRLAN_LMP_DISCONNECT: /* FALLTHROUGH */
case IRLAN_LAP_DISCONNECT:
irlan_next_client_state(self, IRLAN_IDLE);
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_close (self, event, skb, info)
*
*
*
*/
static int irlan_client_state_close(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(2, "%s()\n", __func__ );
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_client_state_sync (self, event, skb, info)
*
*
*
*/
static int irlan_client_state_sync(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(2, "%s()\n", __func__ );
if (skb)
dev_kfree_skb(skb);
return 0;
}

1212
net/irda/irlan/irlan_common.c Normal file
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346
net/irda/irlan/irlan_eth.c Normal file
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@ -0,0 +1,346 @@
/*********************************************************************
*
* Filename: irlan_eth.c
* Version:
* Description:
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Thu Oct 15 08:37:58 1998
* Modified at: Tue Mar 21 09:06:41 2000
* 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) 1998-2000 Dag Brattli, 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/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/inetdevice.h>
#include <linux/if_arp.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <net/arp.h>
#include <net/irda/irda.h>
#include <net/irda/irmod.h>
#include <net/irda/irlan_common.h>
#include <net/irda/irlan_client.h>
#include <net/irda/irlan_event.h>
#include <net/irda/irlan_eth.h>
static int irlan_eth_open(struct net_device *dev);
static int irlan_eth_close(struct net_device *dev);
static netdev_tx_t irlan_eth_xmit(struct sk_buff *skb,
struct net_device *dev);
static void irlan_eth_set_multicast_list(struct net_device *dev);
static const struct net_device_ops irlan_eth_netdev_ops = {
.ndo_open = irlan_eth_open,
.ndo_stop = irlan_eth_close,
.ndo_start_xmit = irlan_eth_xmit,
.ndo_set_rx_mode = irlan_eth_set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
};
/*
* Function irlan_eth_setup (dev)
*
* The network device initialization function.
*
*/
static void irlan_eth_setup(struct net_device *dev)
{
ether_setup(dev);
dev->netdev_ops = &irlan_eth_netdev_ops;
dev->destructor = free_netdev;
/*
* Lets do all queueing in IrTTP instead of this device driver.
* Queueing here as well can introduce some strange latency
* problems, which we will avoid by setting the queue size to 0.
*/
/*
* The bugs in IrTTP and IrLAN that created this latency issue
* have now been fixed, and we can propagate flow control properly
* to the network layer. However, this requires a minimal queue of
* packets for the device.
* Without flow control, the Tx Queue is 14 (ttp) + 0 (dev) = 14
* With flow control, the Tx Queue is 7 (ttp) + 4 (dev) = 11
* See irlan_eth_flow_indication()...
* Note : this number was randomly selected and would need to
* be adjusted.
* Jean II */
dev->tx_queue_len = 4;
}
/*
* Function alloc_irlandev
*
* Allocate network device and control block
*
*/
struct net_device *alloc_irlandev(const char *name)
{
return alloc_netdev(sizeof(struct irlan_cb), name, NET_NAME_UNKNOWN,
irlan_eth_setup);
}
/*
* Function irlan_eth_open (dev)
*
* Network device has been opened by user
*
*/
static int irlan_eth_open(struct net_device *dev)
{
struct irlan_cb *self = netdev_priv(dev);
IRDA_DEBUG(2, "%s()\n", __func__);
/* Ready to play! */
netif_stop_queue(dev); /* Wait until data link is ready */
/* We are now open, so time to do some work */
self->disconnect_reason = 0;
irlan_client_wakeup(self, self->saddr, self->daddr);
/* Make sure we have a hardware address before we return,
so DHCP clients gets happy */
return wait_event_interruptible(self->open_wait,
!self->tsap_data->connected);
}
/*
* Function irlan_eth_close (dev)
*
* Stop the ether network device, his function will usually be called by
* ifconfig down. We should now disconnect the link, We start the
* close timer, so that the instance will be removed if we are unable
* to discover the remote device after the disconnect.
*/
static int irlan_eth_close(struct net_device *dev)
{
struct irlan_cb *self = netdev_priv(dev);
IRDA_DEBUG(2, "%s()\n", __func__);
/* Stop device */
netif_stop_queue(dev);
irlan_close_data_channel(self);
irlan_close_tsaps(self);
irlan_do_client_event(self, IRLAN_LMP_DISCONNECT, NULL);
irlan_do_provider_event(self, IRLAN_LMP_DISCONNECT, NULL);
/* Remove frames queued on the control channel */
skb_queue_purge(&self->client.txq);
self->client.tx_busy = 0;
return 0;
}
/*
* Function irlan_eth_tx (skb)
*
* Transmits ethernet frames over IrDA link.
*
*/
static netdev_tx_t irlan_eth_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct irlan_cb *self = netdev_priv(dev);
int ret;
unsigned int len;
/* skb headroom large enough to contain all IrDA-headers? */
if ((skb_headroom(skb) < self->max_header_size) || (skb_shared(skb))) {
struct sk_buff *new_skb =
skb_realloc_headroom(skb, self->max_header_size);
/* We have to free the original skb anyway */
dev_kfree_skb(skb);
/* Did the realloc succeed? */
if (new_skb == NULL)
return NETDEV_TX_OK;
/* Use the new skb instead */
skb = new_skb;
}
dev->trans_start = jiffies;
len = skb->len;
/* Now queue the packet in the transport layer */
if (self->use_udata)
ret = irttp_udata_request(self->tsap_data, skb);
else
ret = irttp_data_request(self->tsap_data, skb);
if (ret < 0) {
/*
* IrTTPs tx queue is full, so we just have to
* drop the frame! You might think that we should
* just return -1 and don't deallocate the frame,
* but that is dangerous since it's possible that
* we have replaced the original skb with a new
* one with larger headroom, and that would really
* confuse do_dev_queue_xmit() in dev.c! I have
* tried :-) DB
*/
/* irttp_data_request already free the packet */
dev->stats.tx_dropped++;
} else {
dev->stats.tx_packets++;
dev->stats.tx_bytes += len;
}
return NETDEV_TX_OK;
}
/*
* Function irlan_eth_receive (handle, skb)
*
* This function gets the data that is received on the data channel
*
*/
int irlan_eth_receive(void *instance, void *sap, struct sk_buff *skb)
{
struct irlan_cb *self = instance;
struct net_device *dev = self->dev;
if (skb == NULL) {
dev->stats.rx_dropped++;
return 0;
}
if (skb->len < ETH_HLEN) {
IRDA_DEBUG(0, "%s() : IrLAN frame too short (%d)\n",
__func__, skb->len);
dev->stats.rx_dropped++;
dev_kfree_skb(skb);
return 0;
}
/*
* Adopt this frame! Important to set all these fields since they
* might have been previously set by the low level IrDA network
* device driver
*/
skb->protocol = eth_type_trans(skb, dev); /* Remove eth header */
dev->stats.rx_packets++;
dev->stats.rx_bytes += skb->len;
netif_rx(skb); /* Eat it! */
return 0;
}
/*
* Function irlan_eth_flow (status)
*
* Do flow control between IP/Ethernet and IrLAN/IrTTP. This is done by
* controlling the queue stop/start.
*
* The IrDA link layer has the advantage to have flow control, and
* IrTTP now properly handles that. Flow controlling the higher layers
* prevent us to drop Tx packets in here (up to 15% for a TCP socket,
* more for UDP socket).
* Also, this allow us to reduce the overall transmit queue, which means
* less latency in case of mixed traffic.
* Jean II
*/
void irlan_eth_flow_indication(void *instance, void *sap, LOCAL_FLOW flow)
{
struct irlan_cb *self;
struct net_device *dev;
self = instance;
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
dev = self->dev;
IRDA_ASSERT(dev != NULL, return;);
IRDA_DEBUG(0, "%s() : flow %s ; running %d\n", __func__,
flow == FLOW_STOP ? "FLOW_STOP" : "FLOW_START",
netif_running(dev));
switch (flow) {
case FLOW_STOP:
/* IrTTP is full, stop higher layers */
netif_stop_queue(dev);
break;
case FLOW_START:
default:
/* Tell upper layers that its time to transmit frames again */
/* Schedule network layer */
netif_wake_queue(dev);
break;
}
}
/*
* Function set_multicast_list (dev)
*
* Configure the filtering of the device
*
*/
#define HW_MAX_ADDRS 4 /* Must query to get it! */
static void irlan_eth_set_multicast_list(struct net_device *dev)
{
struct irlan_cb *self = netdev_priv(dev);
IRDA_DEBUG(2, "%s()\n", __func__);
/* Check if data channel has been connected yet */
if (self->client.state != IRLAN_DATA) {
IRDA_DEBUG(1, "%s(), delaying!\n", __func__);
return;
}
if (dev->flags & IFF_PROMISC) {
/* Enable promiscuous mode */
IRDA_WARNING("Promiscuous mode not implemented by IrLAN!\n");
} else if ((dev->flags & IFF_ALLMULTI) ||
netdev_mc_count(dev) > HW_MAX_ADDRS) {
/* Disable promiscuous mode, use normal mode. */
IRDA_DEBUG(4, "%s(), Setting multicast filter\n", __func__);
/* hardware_set_filter(NULL); */
irlan_set_multicast_filter(self, TRUE);
} else if (!netdev_mc_empty(dev)) {
IRDA_DEBUG(4, "%s(), Setting multicast filter\n", __func__);
/* Walk the address list, and load the filter */
/* hardware_set_filter(dev->mc_list); */
irlan_set_multicast_filter(self, TRUE);
} else {
IRDA_DEBUG(4, "%s(), Clearing multicast filter\n", __func__);
irlan_set_multicast_filter(self, FALSE);
}
if (dev->flags & IFF_BROADCAST)
irlan_set_broadcast_filter(self, TRUE);
else
irlan_set_broadcast_filter(self, FALSE);
}

60
net/irda/irlan/irlan_event.c Normal file
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/*********************************************************************
*
* Filename: irlan_event.c
* Version:
* Description:
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Tue Oct 20 09:10:16 1998
* Modified at: Sat Oct 30 12:59:01 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-1999 Dag Brattli, 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 <net/irda/irlan_event.h>
const char * const irlan_state[] = {
"IRLAN_IDLE",
"IRLAN_QUERY",
"IRLAN_CONN",
"IRLAN_INFO",
"IRLAN_MEDIA",
"IRLAN_OPEN",
"IRLAN_WAIT",
"IRLAN_ARB",
"IRLAN_DATA",
"IRLAN_CLOSE",
"IRLAN_SYNC",
};
void irlan_next_client_state(struct irlan_cb *self, IRLAN_STATE state)
{
IRDA_DEBUG(2, "%s(), %s\n", __func__ , irlan_state[state]);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
self->client.state = state;
}
void irlan_next_provider_state(struct irlan_cb *self, IRLAN_STATE state)
{
IRDA_DEBUG(2, "%s(), %s\n", __func__ , irlan_state[state]);
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
self->provider.state = state;
}

243
net/irda/irlan/irlan_filter.c Normal file
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@ -0,0 +1,243 @@
/*********************************************************************
*
* Filename: irlan_filter.c
* Version:
* Description:
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Fri Jan 29 11:16:38 1999
* Modified at: Sat Oct 30 12:58:45 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-1999 Dag Brattli, 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/skbuff.h>
#include <linux/random.h>
#include <linux/seq_file.h>
#include <net/irda/irlan_common.h>
#include <net/irda/irlan_filter.h>
/*
* Function irlan_filter_request (self, skb)
*
* Handle filter request from client peer device
*
*/
void irlan_filter_request(struct irlan_cb *self, struct sk_buff *skb)
{
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
if ((self->provider.filter_type == IRLAN_DIRECTED) &&
(self->provider.filter_operation == DYNAMIC))
{
IRDA_DEBUG(0, "Giving peer a dynamic Ethernet address\n");
self->provider.mac_address[0] = 0x40;
self->provider.mac_address[1] = 0x00;
self->provider.mac_address[2] = 0x00;
self->provider.mac_address[3] = 0x00;
/* Use arbitration value to generate MAC address */
if (self->provider.access_type == ACCESS_PEER) {
self->provider.mac_address[4] =
self->provider.send_arb_val & 0xff;
self->provider.mac_address[5] =
(self->provider.send_arb_val >> 8) & 0xff;
} else {
/* Just generate something for now */
get_random_bytes(self->provider.mac_address+4, 1);
get_random_bytes(self->provider.mac_address+5, 1);
}
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x03;
irlan_insert_string_param(skb, "FILTER_MODE", "NONE");
irlan_insert_short_param(skb, "MAX_ENTRY", 0x0001);
irlan_insert_array_param(skb, "FILTER_ENTRY",
self->provider.mac_address, 6);
return;
}
if ((self->provider.filter_type == IRLAN_DIRECTED) &&
(self->provider.filter_mode == FILTER))
{
IRDA_DEBUG(0, "Directed filter on\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_DIRECTED) &&
(self->provider.filter_mode == NONE))
{
IRDA_DEBUG(0, "Directed filter off\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_BROADCAST) &&
(self->provider.filter_mode == FILTER))
{
IRDA_DEBUG(0, "Broadcast filter on\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_BROADCAST) &&
(self->provider.filter_mode == NONE))
{
IRDA_DEBUG(0, "Broadcast filter off\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_MULTICAST) &&
(self->provider.filter_mode == FILTER))
{
IRDA_DEBUG(0, "Multicast filter on\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_MULTICAST) &&
(self->provider.filter_mode == NONE))
{
IRDA_DEBUG(0, "Multicast filter off\n");
skb->data[0] = 0x00; /* Success */
skb->data[1] = 0x00;
return;
}
if ((self->provider.filter_type == IRLAN_MULTICAST) &&
(self->provider.filter_operation == GET))
{
IRDA_DEBUG(0, "Multicast filter get\n");
skb->data[0] = 0x00; /* Success? */
skb->data[1] = 0x02;
irlan_insert_string_param(skb, "FILTER_MODE", "NONE");
irlan_insert_short_param(skb, "MAX_ENTRY", 16);
return;
}
skb->data[0] = 0x00; /* Command not supported */
skb->data[1] = 0x00;
IRDA_DEBUG(0, "Not implemented!\n");
}
/*
* Function check_request_param (self, param, value)
*
* Check parameters in request from peer device
*
*/
void irlan_check_command_param(struct irlan_cb *self, char *param, char *value)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
IRDA_DEBUG(4, "%s, %s\n", param, value);
/*
* This is experimental!! DB.
*/
if (strcmp(param, "MODE") == 0) {
IRDA_DEBUG(0, "%s()\n", __func__ );
self->use_udata = TRUE;
return;
}
/*
* FILTER_TYPE
*/
if (strcmp(param, "FILTER_TYPE") == 0) {
if (strcmp(value, "DIRECTED") == 0) {
self->provider.filter_type = IRLAN_DIRECTED;
return;
}
if (strcmp(value, "MULTICAST") == 0) {
self->provider.filter_type = IRLAN_MULTICAST;
return;
}
if (strcmp(value, "BROADCAST") == 0) {
self->provider.filter_type = IRLAN_BROADCAST;
return;
}
}
/*
* FILTER_MODE
*/
if (strcmp(param, "FILTER_MODE") == 0) {
if (strcmp(value, "ALL") == 0) {
self->provider.filter_mode = ALL;
return;
}
if (strcmp(value, "FILTER") == 0) {
self->provider.filter_mode = FILTER;
return;
}
if (strcmp(value, "NONE") == 0) {
self->provider.filter_mode = FILTER;
return;
}
}
/*
* FILTER_OPERATION
*/
if (strcmp(param, "FILTER_OPERATION") == 0) {
if (strcmp(value, "DYNAMIC") == 0) {
self->provider.filter_operation = DYNAMIC;
return;
}
if (strcmp(value, "GET") == 0) {
self->provider.filter_operation = GET;
return;
}
}
}
/*
* Function irlan_print_filter (filter_type, buf)
*
* Print status of filter. Used by /proc file system
*
*/
#ifdef CONFIG_PROC_FS
#define MASK2STR(m,s) { .mask = m, .str = s }
void irlan_print_filter(struct seq_file *seq, int filter_type)
{
static struct {
int mask;
const char *str;
} filter_mask2str[] = {
MASK2STR(IRLAN_DIRECTED, "DIRECTED"),
MASK2STR(IRLAN_FUNCTIONAL, "FUNCTIONAL"),
MASK2STR(IRLAN_GROUP, "GROUP"),
MASK2STR(IRLAN_MAC_FRAME, "MAC_FRAME"),
MASK2STR(IRLAN_MULTICAST, "MULTICAST"),
MASK2STR(IRLAN_BROADCAST, "BROADCAST"),
MASK2STR(IRLAN_IPX_SOCKET, "IPX_SOCKET"),
MASK2STR(0, NULL)
}, *p;
for (p = filter_mask2str; p->str; p++) {
if (filter_type & p->mask)
seq_printf(seq, "%s ", p->str);
}
seq_putc(seq, '\n');
}
#undef MASK2STR
#endif

416
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/*********************************************************************
*
* 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;
IRDA_DEBUG(4, "%s()\n", __func__ );
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:
IRDA_DEBUG(4, "Got GET_PROVIDER_INFO command!\n");
irlan_do_provider_event(self, IRLAN_GET_INFO_CMD, skb);
break;
case CMD_GET_MEDIA_CHAR:
IRDA_DEBUG(4, "Got GET_MEDIA_CHAR command!\n");
irlan_do_provider_event(self, IRLAN_GET_MEDIA_CMD, skb);
break;
case CMD_OPEN_DATA_CHANNEL:
IRDA_DEBUG(4, "Got OPEN_DATA_CHANNEL command!\n");
irlan_do_provider_event(self, IRLAN_OPEN_DATA_CMD, skb);
break;
case CMD_FILTER_OPERATION:
IRDA_DEBUG(4, "Got FILTER_OPERATION command!\n");
irlan_do_provider_event(self, IRLAN_FILTER_CONFIG_CMD, skb);
break;
case CMD_RECONNECT_DATA_CHAN:
IRDA_DEBUG(2, "%s(), Got RECONNECT_DATA_CHAN command\n", __func__ );
IRDA_DEBUG(2, "%s(), NOT IMPLEMENTED\n", __func__ );
break;
case CMD_CLOSE_DATA_CHAN:
IRDA_DEBUG(2, "Got CLOSE_DATA_CHAN command!\n");
IRDA_DEBUG(2, "%s(), NOT IMPLEMENTED\n", __func__ );
break;
default:
IRDA_DEBUG(2, "%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;
IRDA_DEBUG(0, "%s()\n", __func__ );
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;
IRDA_DEBUG(4, "%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;);
IRDA_DEBUG(4, "%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];
IRDA_DEBUG(4, "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) {
IRDA_DEBUG(2, "%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_DEBUG(4, "%s()\n", __func__ );
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:
IRDA_DEBUG(2, "%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:
IRDA_DEBUG(2, "%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:
IRDA_DEBUG(2, "%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_DEBUG(4, "%s()\n", __func__ );
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) {
IRDA_DEBUG(2, "%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;
}

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/*********************************************************************
*
* Filename: irlan_provider_event.c
* Version: 0.9
* Description: IrLAN provider state machine)
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Sun Aug 31 20:14:37 1997
* Modified at: Sat Oct 30 12:52:41 1999
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* 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 <net/irda/irda.h>
#include <net/irda/iriap.h>
#include <net/irda/irlmp.h>
#include <net/irda/irttp.h>
#include <net/irda/irlan_provider.h>
#include <net/irda/irlan_event.h>
static int irlan_provider_state_idle(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_provider_state_info(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_provider_state_open(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int irlan_provider_state_data(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb);
static int (*state[])(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb) =
{
irlan_provider_state_idle,
NULL, /* Query */
NULL, /* Info */
irlan_provider_state_info,
NULL, /* Media */
irlan_provider_state_open,
NULL, /* Wait */
NULL, /* Arb */
irlan_provider_state_data,
NULL, /* Close */
NULL, /* Sync */
};
void irlan_do_provider_event(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_ASSERT(*state[ self->provider.state] != NULL, return;);
(*state[self->provider.state]) (self, event, skb);
}
/*
* Function irlan_provider_state_idle (event, skb, info)
*
* IDLE, We are waiting for an indication that there is a provider
* available.
*/
static int irlan_provider_state_idle(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_CONNECT_INDICATION:
irlan_provider_connect_response( self, self->provider.tsap_ctrl);
irlan_next_provider_state( self, IRLAN_INFO);
break;
default:
IRDA_DEBUG(4, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_provider_state_info (self, event, skb, info)
*
* INFO, We have issued a GetInfo command and is awaiting a reply.
*/
static int irlan_provider_state_info(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
int ret;
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_GET_INFO_CMD:
/* Be sure to use 802.3 in case of peer mode */
if (self->provider.access_type == ACCESS_PEER) {
self->media = MEDIA_802_3;
/* Check if client has started yet */
if (self->client.state == IRLAN_IDLE) {
/* This should get the client going */
irlmp_discovery_request(8);
}
}
irlan_provider_send_reply(self, CMD_GET_PROVIDER_INFO,
RSP_SUCCESS);
/* Keep state */
break;
case IRLAN_GET_MEDIA_CMD:
irlan_provider_send_reply(self, CMD_GET_MEDIA_CHAR,
RSP_SUCCESS);
/* Keep state */
break;
case IRLAN_OPEN_DATA_CMD:
ret = irlan_parse_open_data_cmd(self, skb);
if (self->provider.access_type == ACCESS_PEER) {
/* FIXME: make use of random functions! */
self->provider.send_arb_val = (jiffies & 0xffff);
}
irlan_provider_send_reply(self, CMD_OPEN_DATA_CHANNEL, ret);
if (ret == RSP_SUCCESS) {
irlan_next_provider_state(self, IRLAN_OPEN);
/* Signal client that we are now open */
irlan_do_client_event(self, IRLAN_PROVIDER_SIGNAL, NULL);
}
break;
case IRLAN_LMP_DISCONNECT: /* FALLTHROUGH */
case IRLAN_LAP_DISCONNECT:
irlan_next_provider_state(self, IRLAN_IDLE);
break;
default:
IRDA_DEBUG( 0, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_provider_state_open (self, event, skb, info)
*
* OPEN, The client has issued a OpenData command and is awaiting a
* reply
*
*/
static int irlan_provider_state_open(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
switch(event) {
case IRLAN_FILTER_CONFIG_CMD:
irlan_provider_parse_command(self, CMD_FILTER_OPERATION, skb);
irlan_provider_send_reply(self, CMD_FILTER_OPERATION,
RSP_SUCCESS);
/* Keep state */
break;
case IRLAN_DATA_CONNECT_INDICATION:
irlan_next_provider_state(self, IRLAN_DATA);
irlan_provider_connect_response(self, self->tsap_data);
break;
case IRLAN_LMP_DISCONNECT: /* FALLTHROUGH */
case IRLAN_LAP_DISCONNECT:
irlan_next_provider_state(self, IRLAN_IDLE);
break;
default:
IRDA_DEBUG(2, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}
/*
* Function irlan_provider_state_data (self, event, skb, info)
*
* DATA, The data channel is connected, allowing data transfers between
* the local and remote machines.
*
*/
static int irlan_provider_state_data(struct irlan_cb *self, IRLAN_EVENT event,
struct sk_buff *skb)
{
IRDA_DEBUG(4, "%s()\n", __func__ );
IRDA_ASSERT(self != NULL, return -1;);
IRDA_ASSERT(self->magic == IRLAN_MAGIC, return -1;);
switch(event) {
case IRLAN_FILTER_CONFIG_CMD:
irlan_provider_parse_command(self, CMD_FILTER_OPERATION, skb);
irlan_provider_send_reply(self, CMD_FILTER_OPERATION,
RSP_SUCCESS);
break;
case IRLAN_LMP_DISCONNECT: /* FALLTHROUGH */
case IRLAN_LAP_DISCONNECT:
irlan_next_provider_state(self, IRLAN_IDLE);
break;
default:
IRDA_DEBUG( 0, "%s(), Unknown event %d\n", __func__ , event);
break;
}
if (skb)
dev_kfree_skb(skb);
return 0;
}