11da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef _NET_DN_DEV_H 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define _NET_DN_DEV_H 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dn_dev; 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dn_ifaddr { 8fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet struct dn_ifaddr __rcu *ifa_next; 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct dn_dev *ifa_dev; 10c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 ifa_local; 11c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 ifa_address; 12c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 ifa_flags; 13c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 ifa_scope; 14c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse char ifa_label[IFNAMSIZ]; 15fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet struct rcu_head rcu; 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_RU 0 /* Run - working normally */ 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_CR 1 /* Circuit Rejected */ 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_DS 2 /* Data Link Start */ 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_RI 3 /* Routing Layer Initialize */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_RV 4 /* Routing Layer Verify */ 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_RC 5 /* Routing Layer Complete */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_OF 6 /* Off */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_S_HA 7 /* Halt */ 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/* 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The dn_dev_parms structure contains the set of parameters 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * for each device (hence inclusion in the dn_dev structure) 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * and an array is used to store the default types of supported 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device (in dn_dev.c). 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The type field matches the ARPHRD_ constants and is used in 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * searching the list for supported devices when new devices 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * come up. 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The mode field is used to find out if a device is broadcast, 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * multipoint, or pointopoint. Please note that DECnet thinks 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * different ways about devices to the rest of the kernel 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * so the normal IFF_xxx flags are invalid here. For devices 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * which can be any combination of the previously mentioned 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * attributes, you can set this on a per device basis by 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * installing an up() routine. 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * The device state field, defines the initial state in which the 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device will come up. In the dn_dev structure, it is the actual 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * state. 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Things have changed here. I've killed timer1 since it's a user space 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * issue for a user space routing deamon to sort out. The kernel does 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * not need to be bothered with it. 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Timers: 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * t2 - Rate limit timer, min time between routing and hello messages 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * t3 - Hello timer, send hello messages when it expires 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Callbacks: 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * up() - Called to initialize device, return value can veto use of 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * device with DECnet. 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * down() - Called to turn device off when it goes down 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * timer3() - Called once for each ifaddr when timer 3 goes off 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * sysctl - Hook for sysctl things 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dn_dev_parms { 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int type; /* ARPHRD_xxx */ 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int mode; /* Broadcast, Unicast, Mulitpoint */ 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_BCAST 1 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_UCAST 2 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DN_DEV_MPOINT 4 731da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int state; /* Initial state */ 741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int forwarding; /* 0=EndNode, 1=L1Router, 2=L2Router */ 751da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long t2; /* Default value of t2 */ 761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long t3; /* Default value of t3 */ 771da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int priority; /* Priority to be a router */ 781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char *name; /* Name for sysctl */ 791da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds int (*up)(struct net_device *); 801da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*down)(struct net_device *); 811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void (*timer3)(struct net_device *, struct dn_ifaddr *ifa); 821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds void *sysctl; 831da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 861da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dn_dev { 87fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet struct dn_ifaddr __rcu *ifa_list; 881da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct net_device *dev; 891da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct dn_dev_parms parms; 901da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds char use_long; 916a878184c202395ea17212f111ab9ec4b5f6d6eeJan Blunck struct timer_list timer; 926a878184c202395ea17212f111ab9ec4b5f6d6eeJan Blunck unsigned long t3; 931da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct neigh_parms *neigh_parms; 94c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 addr[ETH_ALEN]; 951da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct neighbour *router; /* Default router on circuit */ 961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct neighbour *peer; /* Peer on pointopoint links */ 971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned long uptime; /* Time device went up in jiffies */ 981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds}; 991da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 100fd2c3ef761fbc5e6c27fa7d40b30cda06bfcd7d8Eric Dumazetstruct dn_short_packet { 101c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 msgflg; 102c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 dstnode; 103c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 srcnode; 104c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 forward; 105bc10502dba37d3b210efd9f3867212298f13b78eEric Dumazet} __packed; 1061da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 107fd2c3ef761fbc5e6c27fa7d40b30cda06bfcd7d8Eric Dumazetstruct dn_long_packet { 108c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 msgflg; 109c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 d_area; 110c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 d_subarea; 111c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 d_id[6]; 112c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 s_area; 113c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 s_subarea; 114c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 s_id[6]; 115c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 nl2; 116c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 visit_ct; 117c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 s_class; 118c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 pt; 119bc10502dba37d3b210efd9f3867212298f13b78eEric Dumazet} __packed; 1201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds/*------------------------- DRP - Routing messages ---------------------*/ 1221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 123fd2c3ef761fbc5e6c27fa7d40b30cda06bfcd7d8Eric Dumazetstruct endnode_hello_message { 124c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 msgflg; 125c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 tiver[3]; 126c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 id[6]; 127c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 iinfo; 128c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 blksize; 129c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 area; 130c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 seed[8]; 131c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 neighbor[6]; 132c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 timer; 133c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 mpd; 134c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 datalen; 135c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 data[2]; 136bc10502dba37d3b210efd9f3867212298f13b78eEric Dumazet} __packed; 1371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 138fd2c3ef761fbc5e6c27fa7d40b30cda06bfcd7d8Eric Dumazetstruct rtnode_hello_message { 139c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 msgflg; 140c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 tiver[3]; 141c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 id[6]; 142c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 iinfo; 143c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 blksize; 144c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 priority; 145c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 area; 146c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __le16 timer; 147c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouse __u8 mpd; 148bc10502dba37d3b210efd9f3867212298f13b78eEric Dumazet} __packed; 1491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_init(void); 1521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_cleanup(void); 1531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int dn_dev_ioctl(unsigned int cmd, void __user *arg); 1551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_devices_off(void); 1571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_devices_on(void); 1581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_init_pkt(struct sk_buff *skb); 1601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_veri_pkt(struct sk_buff *skb); 1611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_hello(struct sk_buff *skb); 1621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_up(struct net_device *); 1641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern void dn_dev_down(struct net_device *); 1651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int dn_dev_set_default(struct net_device *dev, int force); 1671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern struct net_device *dn_dev_get_default(void); 168c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehouseextern int dn_dev_bind_default(__le16 *addr); 1691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int register_dnaddr_notifier(struct notifier_block *nb); 1711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsextern int unregister_dnaddr_notifier(struct notifier_block *nb); 1721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 173c4ea94ab3710eb2434abe2eab1a479c2dc01f8acSteven Whitehousestatic inline int dn_dev_islocal(struct net_device *dev, __le16 addr) 1741da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds{ 175fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet struct dn_dev *dn_db; 1761da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct dn_ifaddr *ifa; 177fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet int res = 0; 1781da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 179fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet rcu_read_lock(); 180fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet dn_db = rcu_dereference(dev->dn_ptr); 1811da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds if (dn_db == NULL) { 1821da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds printk(KERN_DEBUG "dn_dev_islocal: Called for non DECnet device\n"); 183fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet goto out; 1841da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } 1851da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 186fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet for (ifa = rcu_dereference(dn_db->ifa_list); 187fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet ifa != NULL; 188fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet ifa = rcu_dereference(ifa->ifa_next)) 189fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet if ((addr ^ ifa->ifa_local) == 0) { 190fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet res = 1; 191fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet break; 192fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet } 193fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazetout: 194fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet rcu_read_unlock(); 195fc766e4c4965915ab52a1d1fa3c7a7b3e7bc07f0Eric Dumazet return res; 1961da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} 1971da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 1981da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* _NET_DN_DEV_H */ 199