| /* |
| * AppleTalk networking structures |
| * |
| * The following are directly referenced from the University Of Michigan |
| * netatalk for compatibility reasons. |
| */ |
| |
| #ifndef __LINUX_ATALK_H__ |
| #define __LINUX_ATALK_H__ |
| |
| #define ATPORT_FIRST 1 |
| #define ATPORT_RESERVED 128 |
| #define ATPORT_LAST 254 /* 254 is only legal on localtalk */ |
| #define ATADDR_ANYNET (__u16)0 |
| #define ATADDR_ANYNODE (__u8)0 |
| #define ATADDR_ANYPORT (__u8)0 |
| #define ATADDR_BCAST (__u8)255 |
| #define DDP_MAXSZ 587 |
| #define DDP_MAXHOPS 15 /* 4 bits of hop counter */ |
| |
| #define SIOCATALKDIFADDR (SIOCPROTOPRIVATE + 0) |
| |
| struct at_addr |
| { |
| __u16 s_net; |
| __u8 s_node; |
| }; |
| |
| struct sockaddr_at |
| { |
| sa_family_t sat_family; |
| __u8 sat_port; |
| struct at_addr sat_addr; |
| char sat_zero[ 8 ]; |
| }; |
| |
| struct netrange |
| { |
| __u8 nr_phase; |
| __u16 nr_firstnet; |
| __u16 nr_lastnet; |
| }; |
| |
| struct atalk_route |
| { |
| struct net_device *dev; |
| struct at_addr target; |
| struct at_addr gateway; |
| int flags; |
| struct atalk_route *next; |
| }; |
| |
| struct atalk_iface |
| { |
| struct net_device *dev; |
| struct at_addr address; /* Our address */ |
| int status; /* What are we doing? */ |
| #define ATIF_PROBE 1 /* Probing for an address */ |
| #define ATIF_PROBE_FAIL 2 /* Probe collided */ |
| struct netrange nets; /* Associated direct netrange */ |
| struct atalk_iface *next; |
| }; |
| |
| struct atalk_sock |
| { |
| unsigned short dest_net; |
| unsigned short src_net; |
| unsigned char dest_node; |
| unsigned char src_node; |
| unsigned char dest_port; |
| unsigned char src_port; |
| }; |
| |
| #ifdef __KERNEL__ |
| |
| #include <asm/byteorder.h> |
| |
| struct ddpehdr |
| { |
| #ifdef __LITTLE_ENDIAN_BITFIELD |
| __u16 deh_len:10, deh_hops:4, deh_pad:2; |
| #else |
| __u16 deh_pad:2, deh_hops:4, deh_len:10; |
| #endif |
| __u16 deh_sum; |
| __u16 deh_dnet; |
| __u16 deh_snet; |
| __u8 deh_dnode; |
| __u8 deh_snode; |
| __u8 deh_dport; |
| __u8 deh_sport; |
| /* And netatalk apps expect to stick the type in themselves */ |
| }; |
| |
| /* |
| * Don't drop the struct into the struct above. You'll get some |
| * surprise padding. |
| */ |
| |
| struct ddpebits |
| { |
| #ifdef __LITTLE_ENDIAN_BITFIELD |
| __u16 deh_len:10, deh_hops:4, deh_pad:2; |
| #else |
| __u16 deh_pad:2, deh_hops:4, deh_len:10; |
| #endif |
| }; |
| |
| /* |
| * Short form header |
| */ |
| |
| struct ddpshdr |
| { |
| #ifdef __LITTLE_ENDIAN_BITFIELD |
| __u16 dsh_len:10, dsh_pad:6; |
| #else |
| __u16 dsh_pad:6, dsh_len:10; |
| #endif |
| __u8 dsh_dport; |
| __u8 dsh_sport; |
| /* And netatalk apps expect to stick the type in themselves */ |
| }; |
| |
| /* AppleTalk AARP headers */ |
| |
| struct elapaarp |
| { |
| __u16 hw_type; |
| #define AARP_HW_TYPE_ETHERNET 1 |
| #define AARP_HW_TYPE_TOKENRING 2 |
| __u16 pa_type; |
| __u8 hw_len; |
| __u8 pa_len; |
| #define AARP_PA_ALEN 4 |
| __u16 function; |
| #define AARP_REQUEST 1 |
| #define AARP_REPLY 2 |
| #define AARP_PROBE 3 |
| __u8 hw_src[ETH_ALEN]; |
| __u8 pa_src_zero; |
| __u16 pa_src_net __attribute__ ((packed)); |
| __u8 pa_src_node; |
| __u8 hw_dst[ETH_ALEN]; |
| __u8 pa_dst_zero; |
| __u16 pa_dst_net __attribute__ ((packed)); |
| __u8 pa_dst_node; |
| }; |
| |
| #define AARP_EXPIRY_TIME (5*60*HZ) /* Not specified - how long till we drop a resolved entry */ |
| #define AARP_HASH_SIZE 16 /* Size of hash table */ |
| #define AARP_TICK_TIME (HZ/5) /* Fast retransmission timer when resolving */ |
| #define AARP_RETRANSMIT_LIMIT 10 /* Send 10 requests then give up (2 seconds) */ |
| #define AARP_RESOLVE_TIME (10*HZ) /* Some value bigger than total retransmit time + a bit for last reply to appear and to stop continual requests */ |
| |
| extern struct datalink_proto *ddp_dl, *aarp_dl; |
| extern void aarp_proto_init(void); |
| /* Inter module exports */ |
| |
| /* |
| * Give a device find its atif control structure |
| */ |
| |
| static inline struct atalk_iface *atalk_find_dev(struct net_device *dev) |
| { |
| return dev->atalk_ptr; |
| } |
| |
| extern struct at_addr *atalk_find_dev_addr(struct net_device *dev); |
| extern struct net_device *atrtr_get_dev(struct at_addr *sa); |
| extern int aarp_send_ddp(struct net_device *dev,struct sk_buff *skb, struct at_addr *sa, void *hwaddr); |
| extern void aarp_send_probe(struct net_device *dev, struct at_addr *addr); |
| extern void aarp_device_down(struct net_device *dev); |
| |
| #ifdef MODULE |
| extern void aarp_cleanup_module(void); |
| #endif /* MODULE */ |
| |
| #endif /* __KERNEL__ */ |
| #endif /* __LINUX_ATALK_H__ */ |