cregit-Linux how code gets into the kernel

Release 4.11 net/irda/irlan/irlan_provider_event.c

Directory: net/irda/irlan
/*********************************************************************
 *
 * 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); }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)4497.78%266.67%
Jean Tourrilhes12.22%133.33%
Total45100.00%3100.00%

/* * 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_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: pr_debug("%s(), Unknown event %d\n", __func__ , event); break; } if (skb) dev_kfree_skb(skb); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)7493.67%233.33%
Jean Tourrilhes33.80%233.33%
Joe Perches11.27%116.67%
Harvey Harrison11.27%116.67%
Total79100.00%6100.00%

/* * 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_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: pr_debug("%s(), Unknown event %d\n", __func__ , event); break; } if (skb) dev_kfree_skb(skb); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)20897.65%450.00%
Jean Tourrilhes31.41%225.00%
Harvey Harrison10.47%112.50%
Joe Perches10.47%112.50%
Total213100.00%8100.00%

/* * 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_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: pr_debug("%s(), Unknown event %d\n", __func__ , event); break; } if (skb) dev_kfree_skb(skb); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)11095.65%342.86%
Jean Tourrilhes32.61%228.57%
Harvey Harrison10.87%114.29%
Joe Perches10.87%114.29%
Total115100.00%7100.00%

/* * 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_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: pr_debug("%s(), Unknown event %d\n", __func__ , event); break; } if (skb) dev_kfree_skb(skb); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)9794.17%342.86%
Jean Tourrilhes43.88%228.57%
Joe Perches10.97%114.29%
Harvey Harrison10.97%114.29%
Total103100.00%7100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)67996.72%444.44%
Jean Tourrilhes141.99%222.22%
Harvey Harrison40.57%111.11%
Joe Perches40.57%111.11%
Jan Engelhardt10.14%111.11%
Total702100.00%9100.00%
Directory: net/irda/irlan
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