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Diffstat (limited to 'include/linux/netdevice.h')
| -rw-r--r-- | include/linux/netdevice.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h new file mode 100644 index 000000000..0c66a3e5e --- /dev/null +++ b/include/linux/netdevice.h @@ -0,0 +1,207 @@ +/* + * 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 */ + +/* + * 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 short 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 */ + + /* 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). */ + unsigned short copy:1; + int (*func) (struct sk_buff *, struct device *, + struct packet_type *); + void *data; + struct packet_type *next; +}; + + +#ifdef __KERNEL__ + +/* Used by dev_rint */ +#define IN_SKBUFF 1 + +extern volatile char in_bh; + +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); + +#endif /* __KERNEL__ */ + +#endif /* _LINUX_DEV_H */ |