1 files changed, 0 insertions, 390 deletions

diff --git a/pfinet/linux-inet/igmp.c b/pfinet/linux-inet/igmp.c
deleted file mode 100644
index 32e42213..00000000
--- a/pfinet/linux-inet/igmp.c
+++ /dev/null
@@ -1,390 +0,0 @@
-/*
- *	Linux NET3:	Internet Gateway Management Protocol  [IGMP]
- *
- *	Authors:
- *		Alan Cox <Alan.Cox@linux.org>	
- *
- *	WARNING:
- *		This is a 'preliminary' implementation... on your own head
- *	be it.
- *
- *	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.
- */
- 
- 
-#include <asm/segment.h>
-#include <asm/system.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/config.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include "ip.h"
-#include "protocol.h"
-#include "route.h"
-#include <linux/skbuff.h>
-#include "sock.h"
-#include <linux/igmp.h>
-
-#ifdef CONFIG_IP_MULTICAST
-
-
-/*
- *	Timer management
- */
- 
- 
-static void igmp_stop_timer(struct ip_mc_list *im)
-{
-	del_timer(&im->timer);
-	im->tm_running=0;
-}
-
-static int igmp_random(void)
-{
-	static unsigned long seed=152L;
-	seed=seed*69069L+1;
-	return seed^jiffies;
-}
-
-
-static void igmp_start_timer(struct ip_mc_list *im)
-{
-	int tv;
-	if(im->tm_running)
-		return;
-	tv=igmp_random()%(10*HZ); /* Pick a number any number 8) */
-	im->timer.expires=tv;
-	im->tm_running=1;
-	add_timer(&im->timer);
-}
- 
-/*
- *	Send an IGMP report.
- */
-
-#define MAX_IGMP_SIZE (sizeof(struct igmphdr)+sizeof(struct iphdr)+64)
-
-static void igmp_send_report(struct device *dev, unsigned long address, int type)
-{
-	struct sk_buff *skb=alloc_skb(MAX_IGMP_SIZE, GFP_ATOMIC);
-	int tmp;
-	struct igmphdr *igh;
-	
-	if(skb==NULL)
-		return;
-	tmp=ip_build_header(skb, INADDR_ANY, address, &dev, IPPROTO_IGMP, NULL,
-				skb->mem_len, 0, 1);
-	if(tmp<0)
-	{
-		kfree_skb(skb, FREE_WRITE);
-		return;
-	}
-	igh=(struct igmphdr *)(skb->data+tmp);
-	skb->len=tmp+sizeof(*igh);
-	igh->csum=0;
-	igh->unused=0;
-	igh->type=type;
-	igh->group=address;
-	igh->csum=ip_compute_csum((void *)igh,sizeof(*igh));
-	ip_queue_xmit(NULL,dev,skb,1);
-}
-
-
-static void igmp_timer_expire(unsigned long data)
-{
-	struct ip_mc_list *im=(struct ip_mc_list *)data;
-	igmp_stop_timer(im);
-	igmp_send_report(im->interface, im->multiaddr, IGMP_HOST_MEMBERSHIP_REPORT);
-}
-
-static void igmp_init_timer(struct ip_mc_list *im)
-{
-	im->tm_running=0;
-	init_timer(&im->timer);
-	im->timer.data=(unsigned long)im;
-	im->timer.function=&igmp_timer_expire;
-}
-	
-
-static void igmp_heard_report(struct device *dev, unsigned long address)
-{
-	struct ip_mc_list *im;
-	for(im=dev->ip_mc_list;im!=NULL;im=im->next)
-		if(im->multiaddr==address)
-			igmp_stop_timer(im);
-}
-
-static void igmp_heard_query(struct device *dev)
-{
-	struct ip_mc_list *im;
-	for(im=dev->ip_mc_list;im!=NULL;im=im->next)
-		if(!im->tm_running && im->multiaddr!=IGMP_ALL_HOSTS)
-			igmp_start_timer(im);
-}
-
-/*
- *	Map a multicast IP onto multicast MAC for type ethernet.
- */
- 
-static void ip_mc_map(unsigned long addr, char *buf)
-{
-	addr=ntohl(addr);
-	buf[0]=0x01;
-	buf[1]=0x00;
-	buf[2]=0x5e;
-	buf[5]=addr&0xFF;
-	addr>>=8;
-	buf[4]=addr&0xFF;
-	addr>>=8;
-	buf[3]=addr&0x7F;
-}
-
-/*
- *	Add a filter to a device
- */
- 
-void ip_mc_filter_add(struct device *dev, unsigned long addr)
-{
-	char buf[6];
-	if(dev->type!=ARPHRD_ETHER)
-		return;	/* Only do ethernet now */
-	ip_mc_map(addr,buf);	
-	dev_mc_add(dev,buf,ETH_ALEN,0);
-}
-
-/*
- *	Remove a filter from a device
- */
- 
-void ip_mc_filter_del(struct device *dev, unsigned long addr)
-{
-	char buf[6];
-	if(dev->type!=ARPHRD_ETHER)
-		return;	/* Only do ethernet now */
-	ip_mc_map(addr,buf);	
-	dev_mc_delete(dev,buf,ETH_ALEN,0);
-}
-
-static void igmp_group_dropped(struct ip_mc_list *im)
-{
-	del_timer(&im->timer);
-	igmp_send_report(im->interface, im->multiaddr, IGMP_HOST_LEAVE_MESSAGE);
-	ip_mc_filter_del(im->interface, im->multiaddr);
-/*	printk("Left group %lX\n",im->multiaddr);*/
-}
-
-static void igmp_group_added(struct ip_mc_list *im)
-{
-	igmp_init_timer(im);
-	igmp_send_report(im->interface, im->multiaddr, IGMP_HOST_MEMBERSHIP_REPORT);
-	ip_mc_filter_add(im->interface, im->multiaddr);
-/*	printk("Joined group %lX\n",im->multiaddr);*/
-}
-
-int igmp_rcv(struct sk_buff *skb, struct device *dev, struct options *opt,
-	unsigned long daddr, unsigned short len, unsigned long saddr, int redo,
-	struct inet_protocol *protocol)
-{
-	/* This basically follows the spec line by line -- see RFC1112 */
-	struct igmphdr *igh=(struct igmphdr *)skb->h.raw;
-	
-	if(skb->ip_hdr->ttl!=1 || ip_compute_csum((void *)igh,sizeof(*igh)))
-	{
-		kfree_skb(skb, FREE_READ);
-		return 0;
-	}
-	
-	if(igh->type==IGMP_HOST_MEMBERSHIP_QUERY && daddr==IGMP_ALL_HOSTS)
-		igmp_heard_query(dev);
-	if(igh->type==IGMP_HOST_MEMBERSHIP_REPORT && daddr==igh->group)
-		igmp_heard_report(dev,igh->group);
-	kfree_skb(skb, FREE_READ);
-	return 0;
-}
-
-/*
- *	Multicast list managers
- */
- 
- 
-/*
- *	A socket has joined a multicast group on device dev.
- */
-  
-static void ip_mc_inc_group(struct device *dev, unsigned long addr)
-{
-	struct ip_mc_list *i;
-	for(i=dev->ip_mc_list;i!=NULL;i=i->next)
-	{
-		if(i->multiaddr==addr)
-		{
-			i->users++;
-			return;
-		}
-	}
-	i=(struct ip_mc_list *)kmalloc(sizeof(*i), GFP_KERNEL);
-	if(!i)
-		return;
-	i->users=1;
-	i->interface=dev;
-	i->multiaddr=addr;
-	i->next=dev->ip_mc_list;
-	igmp_group_added(i);
-	dev->ip_mc_list=i;
-}
-
-/*
- *	A socket has left a multicast group on device dev
- */
-	
-static void ip_mc_dec_group(struct device *dev, unsigned long addr)
-{
-	struct ip_mc_list **i;
-	for(i=&(dev->ip_mc_list);(*i)!=NULL;i=&(*i)->next)
-	{
-		if((*i)->multiaddr==addr)
-		{
-			if(--((*i)->users))
-				return;
-			else
-			{
-				struct ip_mc_list *tmp= *i;
-				igmp_group_dropped(tmp);
-				*i=(*i)->next;
-				kfree_s(tmp,sizeof(*tmp));
-			}
-		}
-	}
-}
-
-/*
- *	Device going down: Clean up.
- */
- 
-void ip_mc_drop_device(struct device *dev)
-{
-	struct ip_mc_list *i;
-	struct ip_mc_list *j;
-	for(i=dev->ip_mc_list;i!=NULL;i=j)
-	{
-		j=i->next;
-		kfree_s(i,sizeof(*i));
-	}
-	dev->ip_mc_list=NULL;
-}
-
-/*
- *	Device going up. Make sure it is in all hosts
- */
- 
-void ip_mc_allhost(struct device *dev)
-{
-	struct ip_mc_list *i;
-	for(i=dev->ip_mc_list;i!=NULL;i=i->next)
-		if(i->multiaddr==IGMP_ALL_HOSTS)
-			return;
-	i=(struct ip_mc_list *)kmalloc(sizeof(*i), GFP_KERNEL);
-	if(!i)
-		return;
-	i->users=1;
-	i->interface=dev;
-	i->multiaddr=IGMP_ALL_HOSTS;
-	i->next=dev->ip_mc_list;
-	dev->ip_mc_list=i;
-	ip_mc_filter_add(i->interface, i->multiaddr);
-
-}	
- 
-/*
- *	Join a socket to a group
- */
- 
-int ip_mc_join_group(struct sock *sk , struct device *dev, unsigned long addr)
-{
-	int unused= -1;
-	int i;
-	if(!MULTICAST(addr))
-		return -EINVAL;
-	if(!(dev->flags&IFF_MULTICAST))
-		return -EADDRNOTAVAIL;
-	if(sk->ip_mc_list==NULL)
-	{
-		if((sk->ip_mc_list=(struct ip_mc_socklist *)kmalloc(sizeof(*sk->ip_mc_list), GFP_KERNEL))==NULL)
-			return -ENOMEM;
-		memset(sk->ip_mc_list,'\0',sizeof(*sk->ip_mc_list));
-	}
-	for(i=0;i<IP_MAX_MEMBERSHIPS;i++)
-	{
-		if(sk->ip_mc_list->multiaddr[i]==addr && sk->ip_mc_list->multidev[i]==dev)
-			return -EADDRINUSE;
-		if(sk->ip_mc_list->multidev[i]==NULL)
-			unused=i;
-	}
-	
-	if(unused==-1)
-		return -ENOBUFS;
-	sk->ip_mc_list->multiaddr[unused]=addr;
-	sk->ip_mc_list->multidev[unused]=dev;
-	ip_mc_inc_group(dev,addr);
-	return 0;
-}
-
-/*
- *	Ask a socket to leave a group.
- */
- 
-int ip_mc_leave_group(struct sock *sk, struct device *dev, unsigned long addr)
-{
-	int i;
-	if(!MULTICAST(addr))
-		return -EINVAL;
-	if(!(dev->flags&IFF_MULTICAST))
-		return -EADDRNOTAVAIL;
-	if(sk->ip_mc_list==NULL)
-		return -EADDRNOTAVAIL;
-		
-	for(i=0;i<IP_MAX_MEMBERSHIPS;i++)
-	{
-		if(sk->ip_mc_list->multiaddr[i]==addr && sk->ip_mc_list->multidev[i]==dev)
-		{
-			sk->ip_mc_list->multidev[i]=NULL;
-			ip_mc_dec_group(dev,addr);
-			return 0;
-		}
-	}
-	return -EADDRNOTAVAIL;
-}
-
-/*
- *	A socket is closing.
- */
- 
-void ip_mc_drop_socket(struct sock *sk)
-{
-	int i;
-	
-	if(sk->ip_mc_list==NULL)
-		return;
-		
-	for(i=0;i<IP_MAX_MEMBERSHIPS;i++)
-	{
-		if(sk->ip_mc_list->multidev[i])
-		{
-			ip_mc_dec_group(sk->ip_mc_list->multidev[i], sk->ip_mc_list->multiaddr[i]);
-			sk->ip_mc_list->multidev[i]=NULL;
-		}
-	}
-	kfree_s(sk->ip_mc_list,sizeof(*sk->ip_mc_list));
-	sk->ip_mc_list=NULL;
-}
-
-#endif