| #ifndef __LINUX_ATALK_H__ |
| #define __LINUX_ATALK_H__ |
| |
| |
| #include <net/sock.h> |
| #include <uapi/linux/atalk.h> |
| |
| struct atalk_route { |
| struct net_device *dev; |
| struct atalk_addr target; |
| struct atalk_addr gateway; |
| int flags; |
| struct atalk_route *next; |
| }; |
| |
| /** |
| * struct atalk_iface - AppleTalk Interface |
| * @dev - Network device associated with this interface |
| * @address - Our address |
| * @status - What are we doing? |
| * @nets - Associated direct netrange |
| * @next - next element in the list of interfaces |
| */ |
| struct atalk_iface { |
| struct net_device *dev; |
| struct atalk_addr address; |
| int status; |
| #define ATIF_PROBE 1 /* Probing for an address */ |
| #define ATIF_PROBE_FAIL 2 /* Probe collided */ |
| struct atalk_netrange nets; |
| struct atalk_iface *next; |
| }; |
| |
| struct atalk_sock { |
| /* struct sock has to be the first member of atalk_sock */ |
| struct sock sk; |
| __be16 dest_net; |
| __be16 src_net; |
| unsigned char dest_node; |
| unsigned char src_node; |
| unsigned char dest_port; |
| unsigned char src_port; |
| }; |
| |
| static inline struct atalk_sock *at_sk(struct sock *sk) |
| { |
| return (struct atalk_sock *)sk; |
| } |
| |
| struct ddpehdr { |
| __be16 deh_len_hops; /* lower 10 bits are length, next 4 - hops */ |
| __be16 deh_sum; |
| __be16 deh_dnet; |
| __be16 deh_snet; |
| __u8 deh_dnode; |
| __u8 deh_snode; |
| __u8 deh_dport; |
| __u8 deh_sport; |
| /* And netatalk apps expect to stick the type in themselves */ |
| }; |
| |
| static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb) |
| { |
| return (struct ddpehdr *)skb_transport_header(skb); |
| } |
| |
| /* AppleTalk AARP headers */ |
| struct elapaarp { |
| __be16 hw_type; |
| #define AARP_HW_TYPE_ETHERNET 1 |
| #define AARP_HW_TYPE_TOKENRING 2 |
| __be16 pa_type; |
| __u8 hw_len; |
| __u8 pa_len; |
| #define AARP_PA_ALEN 4 |
| __be16 function; |
| #define AARP_REQUEST 1 |
| #define AARP_REPLY 2 |
| #define AARP_PROBE 3 |
| __u8 hw_src[ETH_ALEN]; |
| __u8 pa_src_zero; |
| __be16 pa_src_net; |
| __u8 pa_src_node; |
| __u8 hw_dst[ETH_ALEN]; |
| __u8 pa_dst_zero; |
| __be16 pa_dst_net; |
| __u8 pa_dst_node; |
| } __attribute__ ((packed)); |
| |
| static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) |
| { |
| return (struct elapaarp *)skb_transport_header(skb); |
| } |
| |
| /* Not specified - how long till we drop a resolved entry */ |
| #define AARP_EXPIRY_TIME (5 * 60 * HZ) |
| /* Size of hash table */ |
| #define AARP_HASH_SIZE 16 |
| /* Fast retransmission timer when resolving */ |
| #define AARP_TICK_TIME (HZ / 5) |
| /* Send 10 requests then give up (2 seconds) */ |
| #define AARP_RETRANSMIT_LIMIT 10 |
| /* |
| * Some value bigger than total retransmit time + a bit for last reply to |
| * appear and to stop continual requests |
| */ |
| #define AARP_RESOLVE_TIME (10 * HZ) |
| |
| extern struct datalink_proto *ddp_dl, *aarp_dl; |
| extern int 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 atalk_addr *atalk_find_dev_addr(struct net_device *dev); |
| extern struct net_device *atrtr_get_dev(struct atalk_addr *sa); |
| extern int aarp_send_ddp(struct net_device *dev, |
| struct sk_buff *skb, |
| struct atalk_addr *sa, void *hwaddr); |
| extern void aarp_device_down(struct net_device *dev); |
| extern void aarp_probe_network(struct atalk_iface *atif); |
| extern int aarp_proxy_probe_network(struct atalk_iface *atif, |
| struct atalk_addr *sa); |
| extern void aarp_proxy_remove(struct net_device *dev, |
| struct atalk_addr *sa); |
| |
| extern void aarp_cleanup_module(void); |
| |
| extern struct hlist_head atalk_sockets; |
| extern rwlock_t atalk_sockets_lock; |
| |
| extern struct atalk_route *atalk_routes; |
| extern rwlock_t atalk_routes_lock; |
| |
| extern struct atalk_iface *atalk_interfaces; |
| extern rwlock_t atalk_interfaces_lock; |
| |
| extern struct atalk_route atrtr_default; |
| |
| extern const struct file_operations atalk_seq_arp_fops; |
| |
| extern int sysctl_aarp_expiry_time; |
| extern int sysctl_aarp_tick_time; |
| extern int sysctl_aarp_retransmit_limit; |
| extern int sysctl_aarp_resolve_time; |
| |
| #ifdef CONFIG_SYSCTL |
| extern int atalk_register_sysctl(void); |
| extern void atalk_unregister_sysctl(void); |
| #else |
| static inline int atalk_register_sysctl(void) |
| { |
| return 0; |
| } |
| static inline void atalk_unregister_sysctl(void) |
| { |
| } |
| #endif |
| |
| #ifdef CONFIG_PROC_FS |
| extern int atalk_proc_init(void); |
| extern void atalk_proc_exit(void); |
| #else |
| static inline int atalk_proc_init(void) |
| { |
| return 0; |
| } |
| static inline void atalk_proc_exit(void) |
| { |
| } |
| #endif /* CONFIG_PROC_FS */ |
| |
| #endif /* __LINUX_ATALK_H__ */ |