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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | #ifndef __LINUX_ATALK_H__ #define __LINUX_ATALK_H__ /* * AppleTalk networking structures * * The following are directly referenced from the University Of Michigan * netatalk for compatibility reasons. */ #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 atalk_addr { __u16 s_net; __u8 s_node; }; struct sockaddr_at { sa_family_t sat_family; __u8 sat_port; struct atalk_addr sat_addr; char sat_zero[8]; }; struct atalk_netrange { __u8 nr_phase; __u16 nr_firstnet; __u16 nr_lastnet; }; 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 { 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 */ }; static __inline__ struct ddpehdr *ddp_hdr(struct sk_buff *skb) { return (struct ddpehdr *)skb->h.raw; } /* * 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] __attribute__ ((packed)); __u8 pa_src_zero __attribute__ ((packed)); __u16 pa_src_net __attribute__ ((packed)); __u8 pa_src_node __attribute__ ((packed)); __u8 hw_dst[ETH_ALEN] __attribute__ ((packed)); __u8 pa_dst_zero __attribute__ ((packed)); __u16 pa_dst_net __attribute__ ((packed)); __u8 pa_dst_node __attribute__ ((packed)); }; static __inline__ struct elapaarp *aarp_hdr(struct sk_buff *skb) { return (struct elapaarp *)skb->h.raw; } /* 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 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 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_send_probe(struct net_device *dev, struct atalk_addr *addr); extern void aarp_device_down(struct net_device *dev); #ifdef MODULE extern void aarp_cleanup_module(void); #endif /* MODULE */ #define at_sk(__sk) ((struct atalk_sock *)(__sk)->sk_protinfo) 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 int atalk_proc_init(void); extern void atalk_proc_exit(void); #endif /* __KERNEL__ */ #endif /* __LINUX_ATALK_H__ */ |