11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * Declarations of AX.25 type objects. 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Alan Cox (GW4PTS) 10/11/93 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds #ifndef _AX25_H 71da177e4SLinus Torvalds #define _AX25_H 81da177e4SLinus Torvalds 91da177e4SLinus Torvalds #include <linux/config.h> 101da177e4SLinus Torvalds #include <linux/ax25.h> 111da177e4SLinus Torvalds #include <linux/spinlock.h> 121da177e4SLinus Torvalds #include <linux/timer.h> 131da177e4SLinus Torvalds #include <linux/list.h> 141da177e4SLinus Torvalds #include <asm/atomic.h> 151da177e4SLinus Torvalds 161da177e4SLinus Torvalds #define AX25_T1CLAMPLO 1 171da177e4SLinus Torvalds #define AX25_T1CLAMPHI (30 * HZ) 181da177e4SLinus Torvalds 191da177e4SLinus Torvalds #define AX25_BPQ_HEADER_LEN 16 201da177e4SLinus Torvalds #define AX25_KISS_HEADER_LEN 1 211da177e4SLinus Torvalds 221da177e4SLinus Torvalds #define AX25_HEADER_LEN 17 231da177e4SLinus Torvalds #define AX25_ADDR_LEN 7 241da177e4SLinus Torvalds #define AX25_DIGI_HEADER_LEN (AX25_MAX_DIGIS * AX25_ADDR_LEN) 251da177e4SLinus Torvalds #define AX25_MAX_HEADER_LEN (AX25_HEADER_LEN + AX25_DIGI_HEADER_LEN) 261da177e4SLinus Torvalds 271da177e4SLinus Torvalds /* AX.25 Protocol IDs */ 281da177e4SLinus Torvalds #define AX25_P_ROSE 0x01 291da177e4SLinus Torvalds #define AX25_P_IP 0xCC 301da177e4SLinus Torvalds #define AX25_P_ARP 0xCD 311da177e4SLinus Torvalds #define AX25_P_TEXT 0xF0 321da177e4SLinus Torvalds #define AX25_P_NETROM 0xCF 331da177e4SLinus Torvalds #define AX25_P_SEGMENT 0x08 341da177e4SLinus Torvalds 351da177e4SLinus Torvalds /* AX.25 Segment control values */ 361da177e4SLinus Torvalds #define AX25_SEG_REM 0x7F 371da177e4SLinus Torvalds #define AX25_SEG_FIRST 0x80 381da177e4SLinus Torvalds 391da177e4SLinus Torvalds #define AX25_CBIT 0x80 /* Command/Response bit */ 401da177e4SLinus Torvalds #define AX25_EBIT 0x01 /* HDLC Address Extension bit */ 411da177e4SLinus Torvalds #define AX25_HBIT 0x80 /* Has been repeated bit */ 421da177e4SLinus Torvalds 431da177e4SLinus Torvalds #define AX25_SSSID_SPARE 0x60 /* Unused bits in SSID for standard AX.25 */ 441da177e4SLinus Torvalds #define AX25_ESSID_SPARE 0x20 /* Unused bits in SSID for extended AX.25 */ 451da177e4SLinus Torvalds #define AX25_DAMA_FLAG 0x20 /* Well, it is *NOT* unused! (dl1bke 951121 */ 461da177e4SLinus Torvalds 471da177e4SLinus Torvalds #define AX25_COND_ACK_PENDING 0x01 481da177e4SLinus Torvalds #define AX25_COND_REJECT 0x02 491da177e4SLinus Torvalds #define AX25_COND_PEER_RX_BUSY 0x04 501da177e4SLinus Torvalds #define AX25_COND_OWN_RX_BUSY 0x08 511da177e4SLinus Torvalds #define AX25_COND_DAMA_MODE 0x10 521da177e4SLinus Torvalds 531da177e4SLinus Torvalds #ifndef _LINUX_NETDEVICE_H 541da177e4SLinus Torvalds #include <linux/netdevice.h> 551da177e4SLinus Torvalds #endif 561da177e4SLinus Torvalds 571da177e4SLinus Torvalds /* Upper sub-layer (LAPB) definitions */ 581da177e4SLinus Torvalds 591da177e4SLinus Torvalds /* Control field templates */ 601da177e4SLinus Torvalds #define AX25_I 0x00 /* Information frames */ 611da177e4SLinus Torvalds #define AX25_S 0x01 /* Supervisory frames */ 621da177e4SLinus Torvalds #define AX25_RR 0x01 /* Receiver ready */ 631da177e4SLinus Torvalds #define AX25_RNR 0x05 /* Receiver not ready */ 641da177e4SLinus Torvalds #define AX25_REJ 0x09 /* Reject */ 651da177e4SLinus Torvalds #define AX25_U 0x03 /* Unnumbered frames */ 661da177e4SLinus Torvalds #define AX25_SABM 0x2f /* Set Asynchronous Balanced Mode */ 671da177e4SLinus Torvalds #define AX25_SABME 0x6f /* Set Asynchronous Balanced Mode Extended */ 681da177e4SLinus Torvalds #define AX25_DISC 0x43 /* Disconnect */ 691da177e4SLinus Torvalds #define AX25_DM 0x0f /* Disconnected mode */ 701da177e4SLinus Torvalds #define AX25_UA 0x63 /* Unnumbered acknowledge */ 711da177e4SLinus Torvalds #define AX25_FRMR 0x87 /* Frame reject */ 721da177e4SLinus Torvalds #define AX25_UI 0x03 /* Unnumbered information */ 731da177e4SLinus Torvalds #define AX25_XID 0xaf /* Exchange information */ 741da177e4SLinus Torvalds #define AX25_TEST 0xe3 /* Test */ 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds #define AX25_PF 0x10 /* Poll/final bit for standard AX.25 */ 771da177e4SLinus Torvalds #define AX25_EPF 0x01 /* Poll/final bit for extended AX.25 */ 781da177e4SLinus Torvalds 791da177e4SLinus Torvalds #define AX25_ILLEGAL 0x100 /* Impossible to be a real frame type */ 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds #define AX25_POLLOFF 0 821da177e4SLinus Torvalds #define AX25_POLLON 1 831da177e4SLinus Torvalds 841da177e4SLinus Torvalds /* AX25 L2 C-bit */ 851da177e4SLinus Torvalds #define AX25_COMMAND 1 861da177e4SLinus Torvalds #define AX25_RESPONSE 2 871da177e4SLinus Torvalds 881da177e4SLinus Torvalds /* Define Link State constants. */ 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds enum { 911da177e4SLinus Torvalds AX25_STATE_0, 921da177e4SLinus Torvalds AX25_STATE_1, 931da177e4SLinus Torvalds AX25_STATE_2, 941da177e4SLinus Torvalds AX25_STATE_3, 951da177e4SLinus Torvalds AX25_STATE_4 961da177e4SLinus Torvalds }; 971da177e4SLinus Torvalds 981da177e4SLinus Torvalds #define AX25_MODULUS 8 /* Standard AX.25 modulus */ 991da177e4SLinus Torvalds #define AX25_EMODULUS 128 /* Extended AX.25 modulus */ 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds enum { 1021da177e4SLinus Torvalds AX25_PROTO_STD_SIMPLEX, 1031da177e4SLinus Torvalds AX25_PROTO_STD_DUPLEX, 1041da177e4SLinus Torvalds AX25_PROTO_DAMA_SLAVE, 1051da177e4SLinus Torvalds AX25_PROTO_DAMA_MASTER 1061da177e4SLinus Torvalds }; 1071da177e4SLinus Torvalds 1081da177e4SLinus Torvalds enum { 1091da177e4SLinus Torvalds AX25_VALUES_IPDEFMODE, /* 0=DG 1=VC */ 1101da177e4SLinus Torvalds AX25_VALUES_AXDEFMODE, /* 0=Normal 1=Extended Seq Nos */ 1111da177e4SLinus Torvalds AX25_VALUES_BACKOFF, /* 0=None 1=Linear 2=Exponential */ 1121da177e4SLinus Torvalds AX25_VALUES_CONMODE, /* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */ 1131da177e4SLinus Torvalds AX25_VALUES_WINDOW, /* Default window size for standard AX.25 */ 1141da177e4SLinus Torvalds AX25_VALUES_EWINDOW, /* Default window size for extended AX.25 */ 1151da177e4SLinus Torvalds AX25_VALUES_T1, /* Default T1 timeout value */ 1161da177e4SLinus Torvalds AX25_VALUES_T2, /* Default T2 timeout value */ 1171da177e4SLinus Torvalds AX25_VALUES_T3, /* Default T3 timeout value */ 1181da177e4SLinus Torvalds AX25_VALUES_IDLE, /* Connected mode idle timer */ 1191da177e4SLinus Torvalds AX25_VALUES_N2, /* Default N2 value */ 1201da177e4SLinus Torvalds AX25_VALUES_PACLEN, /* AX.25 MTU */ 1211da177e4SLinus Torvalds AX25_VALUES_PROTOCOL, /* Std AX.25, DAMA Slave, DAMA Master */ 1221da177e4SLinus Torvalds AX25_VALUES_DS_TIMEOUT, /* DAMA Slave timeout */ 1231da177e4SLinus Torvalds AX25_MAX_VALUES /* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */ 1241da177e4SLinus Torvalds }; 1251da177e4SLinus Torvalds 1261da177e4SLinus Torvalds #define AX25_DEF_IPDEFMODE 0 /* Datagram */ 1271da177e4SLinus Torvalds #define AX25_DEF_AXDEFMODE 0 /* Normal */ 1281da177e4SLinus Torvalds #define AX25_DEF_BACKOFF 1 /* Linear backoff */ 1291da177e4SLinus Torvalds #define AX25_DEF_CONMODE 2 /* Connected mode allowed */ 1301da177e4SLinus Torvalds #define AX25_DEF_WINDOW 2 /* Window=2 */ 1311da177e4SLinus Torvalds #define AX25_DEF_EWINDOW 32 /* Module-128 Window=32 */ 1321da177e4SLinus Torvalds #define AX25_DEF_T1 (10 * HZ) /* T1=10s */ 1331da177e4SLinus Torvalds #define AX25_DEF_T2 (3 * HZ) /* T2=3s */ 1341da177e4SLinus Torvalds #define AX25_DEF_T3 (300 * HZ) /* T3=300s */ 1351da177e4SLinus Torvalds #define AX25_DEF_N2 10 /* N2=10 */ 1361da177e4SLinus Torvalds #define AX25_DEF_IDLE (0 * 60 * HZ) /* Idle=None */ 1371da177e4SLinus Torvalds #define AX25_DEF_PACLEN 256 /* Paclen=256 */ 1381da177e4SLinus Torvalds #define AX25_DEF_PROTOCOL AX25_PROTO_STD_SIMPLEX /* Standard AX.25 */ 1391da177e4SLinus Torvalds #define AX25_DEF_DS_TIMEOUT (3 * 60 * HZ) /* DAMA timeout 3 minutes */ 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds typedef struct ax25_uid_assoc { 14201d7dd0eSRalf Baechle struct hlist_node uid_node; 14301d7dd0eSRalf Baechle atomic_t refcount; 1441da177e4SLinus Torvalds uid_t uid; 1451da177e4SLinus Torvalds ax25_address call; 1461da177e4SLinus Torvalds } ax25_uid_assoc; 1471da177e4SLinus Torvalds 14801d7dd0eSRalf Baechle #define ax25_uid_for_each(__ax25, node, list) \ 14901d7dd0eSRalf Baechle hlist_for_each_entry(__ax25, node, list, uid_node) 15001d7dd0eSRalf Baechle 15101d7dd0eSRalf Baechle #define ax25_uid_hold(ax25) \ 15201d7dd0eSRalf Baechle atomic_inc(&((ax25)->refcount)) 15301d7dd0eSRalf Baechle 15401d7dd0eSRalf Baechle static inline void ax25_uid_put(ax25_uid_assoc *assoc) 15501d7dd0eSRalf Baechle { 15601d7dd0eSRalf Baechle if (atomic_dec_and_test(&assoc->refcount)) { 15701d7dd0eSRalf Baechle kfree(assoc); 15801d7dd0eSRalf Baechle } 15901d7dd0eSRalf Baechle } 16001d7dd0eSRalf Baechle 1611da177e4SLinus Torvalds typedef struct { 1621da177e4SLinus Torvalds ax25_address calls[AX25_MAX_DIGIS]; 1631da177e4SLinus Torvalds unsigned char repeated[AX25_MAX_DIGIS]; 1641da177e4SLinus Torvalds unsigned char ndigi; 1651da177e4SLinus Torvalds char lastrepeat; 1661da177e4SLinus Torvalds } ax25_digi; 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds typedef struct ax25_route { 1691da177e4SLinus Torvalds struct ax25_route *next; 1701da177e4SLinus Torvalds atomic_t ref; 1711da177e4SLinus Torvalds ax25_address callsign; 1721da177e4SLinus Torvalds struct net_device *dev; 1731da177e4SLinus Torvalds ax25_digi *digipeat; 1741da177e4SLinus Torvalds char ip_mode; 1751da177e4SLinus Torvalds struct timer_list timer; 1761da177e4SLinus Torvalds } ax25_route; 1771da177e4SLinus Torvalds 1781da177e4SLinus Torvalds typedef struct { 1791da177e4SLinus Torvalds char slave; /* slave_mode? */ 1801da177e4SLinus Torvalds struct timer_list slave_timer; /* timeout timer */ 1811da177e4SLinus Torvalds unsigned short slave_timeout; /* when? */ 1821da177e4SLinus Torvalds } ax25_dama_info; 1831da177e4SLinus Torvalds 1841da177e4SLinus Torvalds struct ctl_table; 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds typedef struct ax25_dev { 1871da177e4SLinus Torvalds struct ax25_dev *next; 1881da177e4SLinus Torvalds struct net_device *dev; 1891da177e4SLinus Torvalds struct net_device *forward; 1901da177e4SLinus Torvalds struct ctl_table *systable; 1911da177e4SLinus Torvalds int values[AX25_MAX_VALUES]; 1921da177e4SLinus Torvalds #if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER) 1931da177e4SLinus Torvalds ax25_dama_info dama; 1941da177e4SLinus Torvalds #endif 1951da177e4SLinus Torvalds } ax25_dev; 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds typedef struct ax25_cb { 1981da177e4SLinus Torvalds struct hlist_node ax25_node; 1991da177e4SLinus Torvalds ax25_address source_addr, dest_addr; 2001da177e4SLinus Torvalds ax25_digi *digipeat; 2011da177e4SLinus Torvalds ax25_dev *ax25_dev; 2021da177e4SLinus Torvalds unsigned char iamdigi; 2031da177e4SLinus Torvalds unsigned char state, modulus, pidincl; 2041da177e4SLinus Torvalds unsigned short vs, vr, va; 2051da177e4SLinus Torvalds unsigned char condition, backoff; 2061da177e4SLinus Torvalds unsigned char n2, n2count; 2071da177e4SLinus Torvalds struct timer_list t1timer, t2timer, t3timer, idletimer; 2081da177e4SLinus Torvalds unsigned long t1, t2, t3, idle, rtt; 2091da177e4SLinus Torvalds unsigned short paclen, fragno, fraglen; 2101da177e4SLinus Torvalds struct sk_buff_head write_queue; 2111da177e4SLinus Torvalds struct sk_buff_head reseq_queue; 2121da177e4SLinus Torvalds struct sk_buff_head ack_queue; 2131da177e4SLinus Torvalds struct sk_buff_head frag_queue; 2141da177e4SLinus Torvalds unsigned char window; 2151da177e4SLinus Torvalds struct timer_list timer, dtimer; 2161da177e4SLinus Torvalds struct sock *sk; /* Backlink to socket */ 2171da177e4SLinus Torvalds atomic_t refcount; 2181da177e4SLinus Torvalds } ax25_cb; 2191da177e4SLinus Torvalds 2201da177e4SLinus Torvalds #define ax25_sk(__sk) ((ax25_cb *)(__sk)->sk_protinfo) 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds #define ax25_for_each(__ax25, node, list) \ 2231da177e4SLinus Torvalds hlist_for_each_entry(__ax25, node, list, ax25_node) 2241da177e4SLinus Torvalds 2251da177e4SLinus Torvalds #define ax25_cb_hold(__ax25) \ 2261da177e4SLinus Torvalds atomic_inc(&((__ax25)->refcount)) 2271da177e4SLinus Torvalds 2281da177e4SLinus Torvalds static __inline__ void ax25_cb_put(ax25_cb *ax25) 2291da177e4SLinus Torvalds { 2301da177e4SLinus Torvalds if (atomic_dec_and_test(&ax25->refcount)) { 2311da177e4SLinus Torvalds if (ax25->digipeat) 2321da177e4SLinus Torvalds kfree(ax25->digipeat); 2331da177e4SLinus Torvalds kfree(ax25); 2341da177e4SLinus Torvalds } 2351da177e4SLinus Torvalds } 2361da177e4SLinus Torvalds 237f852640eSAlexey Dobriyan static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev) 23856cb5156SArnaldo Carvalho de Melo { 23956cb5156SArnaldo Carvalho de Melo skb->dev = dev; 24056cb5156SArnaldo Carvalho de Melo skb->pkt_type = PACKET_HOST; 24156cb5156SArnaldo Carvalho de Melo skb->mac.raw = skb->data; 24256cb5156SArnaldo Carvalho de Melo return htons(ETH_P_AX25); 24356cb5156SArnaldo Carvalho de Melo } 24456cb5156SArnaldo Carvalho de Melo 2451da177e4SLinus Torvalds /* af_ax25.c */ 2461da177e4SLinus Torvalds extern struct hlist_head ax25_list; 2471da177e4SLinus Torvalds extern spinlock_t ax25_list_lock; 2481da177e4SLinus Torvalds extern void ax25_cb_add(ax25_cb *); 2491da177e4SLinus Torvalds struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int); 2501da177e4SLinus Torvalds struct sock *ax25_get_socket(ax25_address *, ax25_address *, int); 2511da177e4SLinus Torvalds extern ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *, struct net_device *); 2521da177e4SLinus Torvalds extern void ax25_send_to_raw(ax25_address *, struct sk_buff *, int); 2531da177e4SLinus Torvalds extern void ax25_destroy_socket(ax25_cb *); 2541da177e4SLinus Torvalds extern ax25_cb *ax25_create_cb(void); 2551da177e4SLinus Torvalds extern void ax25_fillin_cb(ax25_cb *, ax25_dev *); 2561da177e4SLinus Torvalds extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *); 2571da177e4SLinus Torvalds 2581da177e4SLinus Torvalds /* ax25_addr.c */ 2591da177e4SLinus Torvalds extern ax25_address null_ax25_address; 260f75268cdSRalf Baechle extern char *ax2asc(char *buf, ax25_address *); 261baed16a7SRalf Baechle extern void asc2ax(ax25_address *addr, char *callsign); 2621da177e4SLinus Torvalds extern int ax25cmp(ax25_address *, ax25_address *); 2631da177e4SLinus Torvalds extern int ax25digicmp(ax25_digi *, ax25_digi *); 2641da177e4SLinus Torvalds extern unsigned char *ax25_addr_parse(unsigned char *, int, ax25_address *, ax25_address *, ax25_digi *, int *, int *); 2651da177e4SLinus Torvalds extern int ax25_addr_build(unsigned char *, ax25_address *, ax25_address *, ax25_digi *, int, int); 2661da177e4SLinus Torvalds extern int ax25_addr_size(ax25_digi *); 2671da177e4SLinus Torvalds extern void ax25_digi_invert(ax25_digi *, ax25_digi *); 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds /* ax25_dev.c */ 2701da177e4SLinus Torvalds extern ax25_dev *ax25_dev_list; 2711da177e4SLinus Torvalds extern spinlock_t ax25_dev_lock; 2721da177e4SLinus Torvalds 2731da177e4SLinus Torvalds static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev) 2741da177e4SLinus Torvalds { 2751da177e4SLinus Torvalds return dev->ax25_ptr; 2761da177e4SLinus Torvalds } 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds extern ax25_dev *ax25_addr_ax25dev(ax25_address *); 2791da177e4SLinus Torvalds extern void ax25_dev_device_up(struct net_device *); 2801da177e4SLinus Torvalds extern void ax25_dev_device_down(struct net_device *); 2811da177e4SLinus Torvalds extern int ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *); 2821da177e4SLinus Torvalds extern struct net_device *ax25_fwd_dev(struct net_device *); 2831da177e4SLinus Torvalds extern void ax25_dev_free(void); 2841da177e4SLinus Torvalds 2851da177e4SLinus Torvalds /* ax25_ds_in.c */ 2861da177e4SLinus Torvalds extern int ax25_ds_frame_in(ax25_cb *, struct sk_buff *, int); 2871da177e4SLinus Torvalds 2881da177e4SLinus Torvalds /* ax25_ds_subr.c */ 2891da177e4SLinus Torvalds extern void ax25_ds_nr_error_recovery(ax25_cb *); 2901da177e4SLinus Torvalds extern void ax25_ds_enquiry_response(ax25_cb *); 2911da177e4SLinus Torvalds extern void ax25_ds_establish_data_link(ax25_cb *); 2921da177e4SLinus Torvalds extern void ax25_dev_dama_off(ax25_dev *); 2931da177e4SLinus Torvalds extern void ax25_dama_on(ax25_cb *); 2941da177e4SLinus Torvalds extern void ax25_dama_off(ax25_cb *); 2951da177e4SLinus Torvalds 2961da177e4SLinus Torvalds /* ax25_ds_timer.c */ 2971da177e4SLinus Torvalds extern void ax25_ds_set_timer(ax25_dev *); 2981da177e4SLinus Torvalds extern void ax25_ds_del_timer(ax25_dev *); 2991da177e4SLinus Torvalds extern void ax25_ds_timer(ax25_cb *); 3001da177e4SLinus Torvalds extern void ax25_ds_t1_timeout(ax25_cb *); 3011da177e4SLinus Torvalds extern void ax25_ds_heartbeat_expiry(ax25_cb *); 3021da177e4SLinus Torvalds extern void ax25_ds_t3timer_expiry(ax25_cb *); 3031da177e4SLinus Torvalds extern void ax25_ds_idletimer_expiry(ax25_cb *); 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds /* ax25_iface.c */ 3061da177e4SLinus Torvalds extern int ax25_protocol_register(unsigned int, int (*)(struct sk_buff *, ax25_cb *)); 3071da177e4SLinus Torvalds extern void ax25_protocol_release(unsigned int); 3081da177e4SLinus Torvalds extern int ax25_linkfail_register(void (*)(ax25_cb *, int)); 3091da177e4SLinus Torvalds extern void ax25_linkfail_release(void (*)(ax25_cb *, int)); 3101da177e4SLinus Torvalds extern int ax25_listen_register(ax25_address *, struct net_device *); 3111da177e4SLinus Torvalds extern void ax25_listen_release(ax25_address *, struct net_device *); 3121da177e4SLinus Torvalds extern int (*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *); 3131da177e4SLinus Torvalds extern int ax25_listen_mine(ax25_address *, struct net_device *); 3141da177e4SLinus Torvalds extern void ax25_link_failed(ax25_cb *, int); 3151da177e4SLinus Torvalds extern int ax25_protocol_is_registered(unsigned int); 3161da177e4SLinus Torvalds 3171da177e4SLinus Torvalds /* ax25_in.c */ 3181da177e4SLinus Torvalds extern int ax25_rx_iframe(ax25_cb *, struct sk_buff *); 319f2ccd8faSDavid S. Miller extern int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *); 3201da177e4SLinus Torvalds 3211da177e4SLinus Torvalds /* ax25_ip.c */ 3221da177e4SLinus Torvalds extern int ax25_encapsulate(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int); 3231da177e4SLinus Torvalds extern int ax25_rebuild_header(struct sk_buff *); 3241da177e4SLinus Torvalds 3251da177e4SLinus Torvalds /* ax25_out.c */ 3261da177e4SLinus Torvalds extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct net_device *); 3271da177e4SLinus Torvalds extern void ax25_output(ax25_cb *, int, struct sk_buff *); 3281da177e4SLinus Torvalds extern void ax25_kick(ax25_cb *); 3291da177e4SLinus Torvalds extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int); 33029c4be51SArnaldo Carvalho de Melo extern void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev); 3311da177e4SLinus Torvalds extern int ax25_check_iframes_acked(ax25_cb *, unsigned short); 3321da177e4SLinus Torvalds 3331da177e4SLinus Torvalds /* ax25_route.c */ 3341da177e4SLinus Torvalds extern void ax25_rt_device_down(struct net_device *); 3351da177e4SLinus Torvalds extern int ax25_rt_ioctl(unsigned int, void __user *); 3361da177e4SLinus Torvalds extern struct file_operations ax25_route_fops; 3371da177e4SLinus Torvalds extern int ax25_rt_autobind(ax25_cb *, ax25_address *); 3381da177e4SLinus Torvalds extern ax25_route *ax25_rt_find_route(ax25_route *, ax25_address *, 3391da177e4SLinus Torvalds struct net_device *); 3401da177e4SLinus Torvalds extern struct sk_buff *ax25_rt_build_path(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *); 3411da177e4SLinus Torvalds extern void ax25_rt_free(void); 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds static inline void ax25_put_route(ax25_route *ax25_rt) 3441da177e4SLinus Torvalds { 3451da177e4SLinus Torvalds atomic_dec(&ax25_rt->ref); 3461da177e4SLinus Torvalds } 3471da177e4SLinus Torvalds 3481da177e4SLinus Torvalds /* ax25_std_in.c */ 3491da177e4SLinus Torvalds extern int ax25_std_frame_in(ax25_cb *, struct sk_buff *, int); 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds /* ax25_std_subr.c */ 3521da177e4SLinus Torvalds extern void ax25_std_nr_error_recovery(ax25_cb *); 3531da177e4SLinus Torvalds extern void ax25_std_establish_data_link(ax25_cb *); 3541da177e4SLinus Torvalds extern void ax25_std_transmit_enquiry(ax25_cb *); 3551da177e4SLinus Torvalds extern void ax25_std_enquiry_response(ax25_cb *); 3561da177e4SLinus Torvalds extern void ax25_std_timeout_response(ax25_cb *); 3571da177e4SLinus Torvalds 3581da177e4SLinus Torvalds /* ax25_std_timer.c */ 3591da177e4SLinus Torvalds extern void ax25_std_heartbeat_expiry(ax25_cb *); 3601da177e4SLinus Torvalds extern void ax25_std_t1timer_expiry(ax25_cb *); 3611da177e4SLinus Torvalds extern void ax25_std_t2timer_expiry(ax25_cb *); 3621da177e4SLinus Torvalds extern void ax25_std_t3timer_expiry(ax25_cb *); 3631da177e4SLinus Torvalds extern void ax25_std_idletimer_expiry(ax25_cb *); 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds /* ax25_subr.c */ 3661da177e4SLinus Torvalds extern void ax25_clear_queues(ax25_cb *); 3671da177e4SLinus Torvalds extern void ax25_frames_acked(ax25_cb *, unsigned short); 3681da177e4SLinus Torvalds extern void ax25_requeue_frames(ax25_cb *); 3691da177e4SLinus Torvalds extern int ax25_validate_nr(ax25_cb *, unsigned short); 3701da177e4SLinus Torvalds extern int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *); 3711da177e4SLinus Torvalds extern void ax25_send_control(ax25_cb *, int, int, int); 3721da177e4SLinus Torvalds extern void ax25_return_dm(struct net_device *, ax25_address *, ax25_address *, ax25_digi *); 3731da177e4SLinus Torvalds extern void ax25_calculate_t1(ax25_cb *); 3741da177e4SLinus Torvalds extern void ax25_calculate_rtt(ax25_cb *); 3751da177e4SLinus Torvalds extern void ax25_disconnect(ax25_cb *, int); 3761da177e4SLinus Torvalds 3771da177e4SLinus Torvalds /* ax25_timer.c */ 3781da177e4SLinus Torvalds extern void ax25_start_heartbeat(ax25_cb *); 3791da177e4SLinus Torvalds extern void ax25_start_t1timer(ax25_cb *); 3801da177e4SLinus Torvalds extern void ax25_start_t2timer(ax25_cb *); 3811da177e4SLinus Torvalds extern void ax25_start_t3timer(ax25_cb *); 3821da177e4SLinus Torvalds extern void ax25_start_idletimer(ax25_cb *); 3831da177e4SLinus Torvalds extern void ax25_stop_heartbeat(ax25_cb *); 3841da177e4SLinus Torvalds extern void ax25_stop_t1timer(ax25_cb *); 3851da177e4SLinus Torvalds extern void ax25_stop_t2timer(ax25_cb *); 3861da177e4SLinus Torvalds extern void ax25_stop_t3timer(ax25_cb *); 3871da177e4SLinus Torvalds extern void ax25_stop_idletimer(ax25_cb *); 3881da177e4SLinus Torvalds extern int ax25_t1timer_running(ax25_cb *); 3891da177e4SLinus Torvalds extern unsigned long ax25_display_timer(struct timer_list *); 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds /* ax25_uid.c */ 3921da177e4SLinus Torvalds extern int ax25_uid_policy; 39301d7dd0eSRalf Baechle extern ax25_uid_assoc *ax25_findbyuid(uid_t); 3941da177e4SLinus Torvalds extern int ax25_uid_ioctl(int, struct sockaddr_ax25 *); 3951da177e4SLinus Torvalds extern struct file_operations ax25_uid_fops; 3961da177e4SLinus Torvalds extern void ax25_uid_free(void); 3971da177e4SLinus Torvalds 3981da177e4SLinus Torvalds /* sysctl_net_ax25.c */ 3991da177e4SLinus Torvalds #ifdef CONFIG_SYSCTL 4001da177e4SLinus Torvalds extern void ax25_register_sysctl(void); 4011da177e4SLinus Torvalds extern void ax25_unregister_sysctl(void); 4021da177e4SLinus Torvalds #else 4031da177e4SLinus Torvalds static inline void ax25_register_sysctl(void) {}; 4041da177e4SLinus Torvalds static inline void ax25_unregister_sysctl(void) {}; 4051da177e4SLinus Torvalds #endif /* CONFIG_SYSCTL */ 4061da177e4SLinus Torvalds 4071da177e4SLinus Torvalds #endif 408