entered into RCS

2 files changed, 331 insertions, 0 deletions

diff --git a/pfinet/linux/netdevice.h b/pfinet/linux/netdevice.h
new file mode 100644
index 00000000..dcca542d
--- /dev/null
+++ b/pfinet/linux/netdevice.h
@@ -0,0 +1,235 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		Definitions for the Interfaces handler.
+ *
+ * Version:	@(#)dev.h	1.0.10	08/12/93
+ *
+ * Authors:	Ross Biro, <bir7@leland.Stanford.Edu>
+ *		Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *		Corey Minyard <wf-rch!minyard@relay.EU.net>
+ *		Donald J. Becker, <becker@super.org>
+ *		Alan Cox, <A.Cox@swansea.ac.uk>
+ *		Bjorn Ekwall. <bj0rn@blox.se>
+ *
+ *		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.
+ *
+ *		Moved to /usr/include/linux for NET3
+ */
+#ifndef _LINUX_NETDEVICE_H
+#define _LINUX_NETDEVICE_H
+
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/skbuff.h>
+
+/* for future expansion when we will have different priorities. */
+#define DEV_NUMBUFFS	3
+#define MAX_ADDR_LEN	7
+#define MAX_HEADER	18
+
+#define IS_MYADDR	1		/* address is (one of) our own	*/
+#define IS_LOOPBACK	2		/* address is for LOOPBACK	*/
+#define IS_BROADCAST	3		/* address is a valid broadcast	*/
+#define IS_INVBCAST	4		/* Wrong netmask bcast not for us (unused)*/
+#define IS_MULTICAST	5		/* Multicast IP address */
+
+/*
+ *	We tag these structures with multicasts.
+ */
+ 
+struct dev_mc_list
+{	
+	struct dev_mc_list *next;
+	char dmi_addr[MAX_ADDR_LEN];
+	unsigned short dmi_addrlen;
+	unsigned short dmi_users;
+};
+
+/*
+ * The DEVICE structure.
+ * Actually, this whole structure is a big mistake.  It mixes I/O
+ * data with strictly "high-level" data, and it has to know about
+ * almost every data structure used in the INET module.  
+ */
+struct device 
+{
+
+  /*
+   * This is the first field of the "visible" part of this structure
+   * (i.e. as seen by users in the "Space.c" file).  It is the name
+   * the interface.
+   */
+  char			  *name;
+
+  /* I/O specific fields - FIXME: Merge these and struct ifmap into one */
+  unsigned long		  rmem_end;		/* shmem "recv" end	*/
+  unsigned long		  rmem_start;		/* shmem "recv" start	*/
+  unsigned long		  mem_end;		/* sahared mem end	*/
+  unsigned long		  mem_start;		/* shared mem start	*/
+  unsigned long		  base_addr;		/* device I/O address	*/
+  unsigned char		  irq;			/* device IRQ number	*/
+
+  /* Low-level status flags. */
+  volatile unsigned char  start,		/* start an operation	*/
+                          tbusy,		/* transmitter busy	*/
+                          interrupt;		/* interrupt arrived	*/
+
+  struct device		  *next;
+
+  /* The device initialization function. Called only once. */
+  int			  (*init)(struct device *dev);
+
+  /* Some hardware also needs these fields, but they are not part of the
+     usual set specified in Space.c. */
+  unsigned char		  if_port;		/* Selectable AUI, TP,..*/
+  unsigned char		  dma;			/* DMA channel		*/
+
+  struct enet_statistics* (*get_stats)(struct device *dev);
+
+  /*
+   * This marks the end of the "visible" part of the structure. All
+   * fields hereafter are internal to the system, and may change at
+   * will (read: may be cleaned up at will).
+   */
+
+  /* These may be needed for future network-power-down code. */
+  unsigned long		  trans_start;	/* Time (in jiffies) of last Tx	*/
+  unsigned long		  last_rx;	/* Time of last Rx		*/
+
+  unsigned short	  flags;	/* interface flags (a la BSD)	*/
+  unsigned short	  family;	/* address family ID (AF_INET)	*/
+  unsigned short	  metric;	/* routing metric (not used)	*/
+  unsigned short	  mtu;		/* interface MTU value		*/
+  unsigned short	  type;		/* interface hardware type	*/
+  unsigned short	  hard_header_len;	/* hardware hdr length	*/
+  void			  *priv;	/* pointer to private data	*/
+
+  /* Interface address info. */
+  unsigned char		  broadcast[MAX_ADDR_LEN];	/* hw bcast add	*/
+  unsigned char		  dev_addr[MAX_ADDR_LEN];	/* hw address	*/
+  unsigned char		  addr_len;	/* hardware address length	*/
+  unsigned long		  pa_addr;	/* protocol address		*/
+  unsigned long		  pa_brdaddr;	/* protocol broadcast addr	*/
+  unsigned long		  pa_dstaddr;	/* protocol P-P other side addr	*/
+  unsigned long		  pa_mask;	/* protocol netmask		*/
+  unsigned short	  pa_alen;	/* protocol address length	*/
+
+  struct dev_mc_list	 *mc_list;	/* Multicast mac addresses	*/
+  int			 mc_count;	/* Number of installed mcasts	*/
+  
+  struct ip_mc_list	 *ip_mc_list;	/* IP multicast filter chain    */
+    
+  /* For load balancing driver pair support */
+  
+  unsigned long		   pkt_queue;	/* Packets queued */
+  struct device		  *slave;	/* Slave device */
+  
+
+  /* Pointer to the interface buffers. */
+  struct sk_buff_head	  buffs[DEV_NUMBUFFS];
+
+  /* Pointers to interface service routines. */
+  int			  (*open)(struct device *dev);
+  int			  (*stop)(struct device *dev);
+  int			  (*hard_start_xmit) (struct sk_buff *skb,
+					      struct device *dev);
+  int			  (*hard_header) (unsigned char *buff,
+					  struct device *dev,
+					  unsigned short type,
+					  void *daddr,
+					  void *saddr,
+					  unsigned len,
+					  struct sk_buff *skb);
+  int			  (*rebuild_header)(void *eth, struct device *dev,
+				unsigned long raddr, struct sk_buff *skb);
+  unsigned short	  (*type_trans) (struct sk_buff *skb,
+					 struct device *dev);
+#define HAVE_MULTICAST			 
+  void			  (*set_multicast_list)(struct device *dev,
+  					 int num_addrs, void *addrs);
+#define HAVE_SET_MAC_ADDR  		 
+  int			  (*set_mac_address)(struct device *dev, void *addr);
+#define HAVE_PRIVATE_IOCTL
+  int			  (*do_ioctl)(struct device *dev, struct ifreq *ifr, int cmd);
+#define HAVE_SET_CONFIG
+  int			  (*set_config)(struct device *dev, struct ifmap *map);
+  
+};
+
+
+struct packet_type {
+  unsigned short	type;	/* This is really htons(ether_type). */
+  struct device *	dev;
+  int			(*func) (struct sk_buff *, struct device *,
+				 struct packet_type *);
+  void			*data;
+  struct packet_type	*next;
+};
+
+
+#ifdef __KERNEL__
+
+#include <linux/notifier.h>
+
+/* Used by dev_rint */
+#define IN_SKBUFF	1
+
+extern volatile char in_bh;
+
+extern struct device	loopback_dev;
+extern struct device	*dev_base;
+extern struct packet_type *ptype_base;
+
+
+extern int		ip_addr_match(unsigned long addr1, unsigned long addr2);
+extern int		ip_chk_addr(unsigned long addr);
+extern struct device	*ip_dev_check(unsigned long daddr);
+extern unsigned long	ip_my_addr(void);
+extern unsigned long	ip_get_mask(unsigned long addr);
+
+extern void		dev_add_pack(struct packet_type *pt);
+extern void		dev_remove_pack(struct packet_type *pt);
+extern struct device	*dev_get(char *name);
+extern int		dev_open(struct device *dev);
+extern int		dev_close(struct device *dev);
+extern void		dev_queue_xmit(struct sk_buff *skb, struct device *dev,
+				       int pri);
+#define HAVE_NETIF_RX 1
+extern void		netif_rx(struct sk_buff *skb);
+/* The old interface to netif_rx(). */
+extern int		dev_rint(unsigned char *buff, long len, int flags,
+				 struct device * dev);
+extern void		dev_transmit(void);
+extern int		in_net_bh(void);
+extern void		net_bh(void *tmp);
+extern void		dev_tint(struct device *dev);
+extern int		dev_get_info(char *buffer, char **start, off_t offset, int length);
+extern int		dev_ioctl(unsigned int cmd, void *);
+
+extern void		dev_init(void);
+
+/* These functions live elsewhere (drivers/net/net_init.c, but related) */
+
+extern void		ether_setup(struct device *dev);
+extern int		ether_config(struct device *dev, struct ifmap *map);
+/* Support for loadable net-drivers */
+extern int		register_netdev(struct device *dev);
+extern void		unregister_netdev(struct device *dev);
+extern int 		register_netdevice_notifier(struct notifier_block *nb);
+extern int		unregister_netdevice_notifier(struct notifier_block *nb);
+/* Functions used for multicast support */
+extern void		dev_mc_upload(struct device *dev);
+extern void 		dev_mc_delete(struct device *dev, void *addr, int alen, int all);
+extern void		dev_mc_add(struct device *dev, void *addr, int alen, int newonly);
+extern void		dev_mc_discard(struct device *dev);
+/* This is the wrong place but it'll do for the moment */
+extern void		ip_mc_allhost(struct device *dev);
+#endif /* __KERNEL__ */
+
+#endif	/* _LINUX_DEV_H */
diff --git a/pfinet/linux/notifier.h b/pfinet/linux/notifier.h
new file mode 100644
index 00000000..78a44649
--- /dev/null
+++ b/pfinet/linux/notifier.h
@@ -0,0 +1,96 @@
+/*
+ *	Routines to manage notifier chains for passing status changes to any
+ *	interested routines. We need this instead of hard coded call lists so
+ *	that modules can poke their nose into the innards. The network devices
+ *	needed them so here they are for the rest of you.
+ *
+ *				Alan Cox <Alan.Cox@linux.org>
+ */
+ 
+#ifndef _LINUX_NOTIFIER_H
+#define _LINUX_NOTIFIER_H
+#include <linux/errno.h>
+
+struct notifier_block
+{
+	int (*notifier_call)(unsigned long, void *);
+	struct notifier_block *next;
+	int priority;
+};
+
+
+#ifdef __KERNEL__
+
+#define NOTIFY_DONE		0x0000		/* Don't care */
+#define NOTIFY_OK		0x0001		/* Suits me */
+#define NOTIFY_STOP_MASK	0x8000		/* Don't call further */
+#define NOTIFY_BAD		(NOTIFY_STOP_MASK|0x0002)	/* Bad/Veto action	*/
+
+extern __inline__ int notifier_chain_register(struct notifier_block **list, struct notifier_block *n)
+{
+	while(*list)
+	{
+		if(n->priority > (*list)->priority)
+			break;
+		list= &((*list)->next);
+	}
+	n->next = *list;
+	*list=n;
+	return 0;
+}
+
+/*
+ *	Warning to any non GPL module writers out there.. these functions are
+ *	GPL'd
+ */
+ 
+extern __inline__ int notifier_chain_unregister(struct notifier_block **nl, struct notifier_block *n)
+{
+	while((*nl)!=NULL)
+	{
+		if((*nl)==n)
+		{
+			*nl=n->next;
+			return 0;
+		}
+		nl=&((*nl)->next);
+	}
+	return -ENOENT;
+}
+
+/*
+ *	This is one of these things that is generally shorter inline
+ */
+ 
+extern __inline__ int notifier_call_chain(struct notifier_block **n, unsigned long val, void *v)
+{
+	int ret=NOTIFY_DONE;
+	struct notifier_block *nb = *n;
+	while(nb)
+	{
+		ret=nb->notifier_call(val,v);
+		if(ret&NOTIFY_STOP_MASK)
+			return ret;
+		nb=nb->next;
+	}
+	return ret;
+}
+
+
+/*
+ *	Declared notifiers so far. I can imagine quite a few more chains
+ *	over time (eg laptop power reset chains, reboot chain (to clean 
+ *	device units up), device [un]mount chain, module load/unload chain,
+ *	low memory chain, screenblank chain (for plug in modular screenblankers) 
+ *	VC switch chains (for loadable kernel svgalib VC switch helpers) etc...
+ */
+ 
+/* netdevice notifier chain */
+#define NETDEV_UP	0x0001	/* For now you can't veto a device up/down */
+#define NETDEV_DOWN	0x0002
+#define NETDEV_REBOOT	0x0003	/* Tell a protocol stack a network interface
+				   detected a hardware crash and restarted
+				   - we can use this eg to kick tcp sessions
+				   once done */
+#endif
+#endif