init gnumach copy

1 files changed, 339 insertions, 0 deletions

diff --git a/linux/dev/include/linux/netdevice.h b/linux/dev/include/linux/netdevice.h
new file mode 100644
index 0000000..e1a9a34
--- /dev/null
+++ b/linux/dev/include/linux/netdevice.h
@@ -0,0 +1,339 @@
+/*
+ * 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	1.0.11	07/31/96
+ *
+ * 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>
+ *		Lawrence V. Stefani, <stefani@lkg.dec.com>
+ *
+ *		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
+ *		Added extern for fddi_setup()
+ */
+#ifndef _LINUX_NETDEVICE_H
+#define _LINUX_NETDEVICE_H
+
+#include <linux/config.h>
+#include <linux/if.h>
+#include <linux/if_ether.h>
+
+/* for future expansion when we will have different priorities. */
+#define DEV_NUMBUFFS	3
+#define MAX_ADDR_LEN	7
+#ifndef CONFIG_AX25
+#ifndef CONFIG_TR
+#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE)
+#define MAX_HEADER	32		/* We really need about 18 worst case .. so 32 is aligned */
+#else
+#define MAX_HEADER	80		/* We need to allow for having tunnel headers */
+#endif  /* IPIP */
+#else
+#define MAX_HEADER	48		/* Token Ring header needs 40 bytes ... 48 is aligned */ 
+#endif /* TR */
+#else
+#define MAX_HEADER	96		/* AX.25 + NetROM */
+#endif /* AX25 */
+
+#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 */
+
+#ifdef __KERNEL__
+
+#include <linux/skbuff.h>
+
+/*
+ *	We tag multicasts with these structures.
+ */
+ 
+struct dev_mc_list
+{	
+	struct dev_mc_list *next;
+	char dmi_addr[MAX_ADDR_LEN];
+	unsigned short dmi_addrlen;
+	unsigned short dmi_users;
+};
+
+struct hh_cache
+{
+	struct hh_cache *hh_next;
+	void		*hh_arp;	/* Opaque pointer, used by
+					 * any address resolution module,
+					 * not only ARP.
+					 */
+	int		hh_refcnt;	/* number of users */
+	unsigned short  hh_type;	/* protocol identifier, f.e ETH_P_IP */
+	char		hh_uptodate;	/* hh_data is valid */
+	char		hh_data[16];    /* cached hardware header */
+};
+
+/*
+ * 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.  
+ */
+
+#ifdef MACH
+
+#ifndef MACH_INCLUDE
+#define device	linux_device
+#endif
+
+struct linux_device
+
+#else
+
+struct device 
+
+#endif
+{
+
+  /*
+   * 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;		/* shared 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	*/
+                          interrupt;		/* interrupt arrived	*/
+  unsigned long		  tbusy;		/* transmitter busy must be long for bitops */
+
+  struct linux_device		  *next;
+
+  /* The device initialization function. Called only once. */
+  int			  (*init)(struct linux_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 linux_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		  pad;				/* make dev_addr aligned to 8 bytes */
+  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    */
+  __u32			tx_queue_len;	/* Max frames per queue allowed */
+    
+  /* For load balancing driver pair support */
+  
+  unsigned long		   pkt_queue;	/* Packets queued */
+  struct linux_device		  *slave;	/* Slave device */
+  struct net_alias_info		*alias_info;	/* main dev alias info */
+  struct net_alias		*my_alias;	/* alias devs */
+  
+  /* Pointer to the interface buffers. */
+  struct sk_buff_head	  buffs[DEV_NUMBUFFS];
+
+  /* Pointers to interface service routines. */
+  int			  (*open)(struct linux_device *dev);
+  int			  (*stop)(struct linux_device *dev);
+  int			  (*hard_start_xmit) (struct sk_buff *skb,
+					      struct linux_device *dev);
+  int			  (*hard_header) (struct sk_buff *skb,
+					  struct linux_device *dev,
+					  unsigned short type,
+					  void *daddr,
+					  void *saddr,
+					  unsigned len);
+  int			  (*rebuild_header)(void *eth, struct linux_device *dev,
+				unsigned long raddr, struct sk_buff *skb);
+#define HAVE_MULTICAST			 
+  void			  (*set_multicast_list)(struct linux_device *dev);
+#define HAVE_SET_MAC_ADDR  		 
+  int			  (*set_mac_address)(struct linux_device *dev, void *addr);
+#define HAVE_PRIVATE_IOCTL
+  int			  (*do_ioctl)(struct linux_device *dev, struct ifreq *ifr, int cmd);
+#define HAVE_SET_CONFIG
+  int			  (*set_config)(struct linux_device *dev, struct ifmap *map);
+#define HAVE_HEADER_CACHE
+  void			  (*header_cache_bind)(struct hh_cache **hhp, struct linux_device *dev, unsigned short htype, __u32 daddr);
+  void			  (*header_cache_update)(struct hh_cache *hh, struct linux_device *dev, unsigned char *  haddr);
+#define HAVE_CHANGE_MTU
+  int			  (*change_mtu)(struct linux_device *dev, int new_mtu);
+
+  struct iw_statistics*	  (*get_wireless_stats)(struct linux_device *dev);
+
+#ifdef MACH
+
+#ifdef MACH_INCLUDE
+    struct net_data *net_data;
+#else
+    void *net_data;
+#endif
+
+#endif
+};
+
+
+struct packet_type {
+  unsigned short	type;	/* This is really htons(ether_type). */
+  struct linux_device *	dev;
+  int			(*func) (struct sk_buff *, struct linux_device *,
+				 struct packet_type *);
+  void			*data;
+  struct packet_type	*next;
+};
+
+
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+
+/* Used by dev_rint */
+#define IN_SKBUFF	1
+
+extern volatile unsigned long in_bh;
+
+extern struct linux_device	loopback_dev;
+extern struct linux_device	*dev_base;
+extern struct packet_type *ptype_base[16];
+
+
+extern int		ip_addr_match(unsigned long addr1, unsigned long addr2);
+extern int		ip_chk_addr(unsigned long addr);
+extern struct linux_device	*ip_dev_bynet(unsigned long daddr, unsigned long mask);
+extern unsigned long	ip_my_addr(void);
+extern unsigned long	ip_get_mask(unsigned long addr);
+extern struct linux_device 	*ip_dev_find(unsigned long addr);
+extern struct linux_device    *dev_getbytype(unsigned short type);
+
+extern void		dev_add_pack(struct packet_type *pt);
+extern void		dev_remove_pack(struct packet_type *pt);
+extern struct linux_device	*dev_get(const char *name);
+extern int		dev_open(struct linux_device *dev);
+extern int		dev_close(struct linux_device *dev);
+extern void		dev_queue_xmit(struct sk_buff *skb, struct linux_device *dev,
+				       int pri);
+				      
+#define HAVE_NETIF_RX 1
+extern void		netif_rx(struct sk_buff *skb);
+extern void		net_bh(void);
+
+#ifdef MACH
+#define dev_tint(dev)
+#else
+extern void		dev_tint(struct linux_device *dev);
+#endif
+
+extern int		dev_change_flags(struct linux_device *dev, short flags);
+extern int		dev_get_info(char *buffer, char **start, off_t offset, int length, int dummy);
+extern int		dev_ioctl(unsigned int cmd, void *);
+
+extern void		dev_init(void);
+
+/* Locking protection for page faults during outputs to devices unloaded during the fault */
+
+extern int		dev_lockct;
+
+/*
+ *	These two don't currently need to be interrupt-safe
+ *	but they may do soon. Do it properly anyway.
+ */
+
+extern __inline__ void  dev_lock_list(void)
+{
+	unsigned long flags;
+	save_flags(flags);
+	cli();
+	dev_lockct++;
+	restore_flags(flags);
+}
+
+extern __inline__ void  dev_unlock_list(void)
+{
+	unsigned long flags;
+	save_flags(flags);
+	cli();
+	dev_lockct--;
+	restore_flags(flags);
+}
+
+/*
+ *	This almost never occurs, isn't in performance critical paths
+ *	and we can thus be relaxed about it
+ */
+ 
+extern __inline__ void dev_lock_wait(void)
+{
+	while(dev_lockct)
+		schedule();
+}
+
+
+/* These functions live elsewhere (drivers/net/net_init.c, but related) */
+
+extern void		ether_setup(struct linux_device *dev);
+extern void		tr_setup(struct linux_device *dev);
+extern void		fddi_setup(struct linux_device *dev);
+extern int		ether_config(struct linux_device *dev, struct ifmap *map);
+/* Support for loadable net-drivers */
+extern int		register_netdev(struct linux_device *dev);
+extern void		unregister_netdev(struct linux_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 linux_device *dev);
+extern void 		dev_mc_delete(struct linux_device *dev, void *addr, int alen, int all);
+extern void		dev_mc_add(struct linux_device *dev, void *addr, int alen, int newonly);
+extern void		dev_mc_discard(struct linux_device *dev);
+/* This is the wrong place but it'll do for the moment */
+extern void		ip_mc_allhost(struct linux_device *dev);
+#endif /* __KERNEL__ */
+
+#endif	/* _LINUX_DEV_H */