+++ /dev/null
-/*********************************************************************
- *
- * 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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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))
- {
- pr_debug("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;
-
- pr_debug("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_ASSERT(self != NULL, return;);
- IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
-
- pr_debug("%s, %s\n", param, value);
-
- /*
- * This is experimental!! DB.
- */
- if (strcmp(param, "MODE") == 0) {
- 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
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