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 { 1421da177e4SLinus Torvalds struct ax25_uid_assoc *next; 1431da177e4SLinus Torvalds uid_t uid; 1441da177e4SLinus Torvalds ax25_address call; 1451da177e4SLinus Torvalds } ax25_uid_assoc; 1461da177e4SLinus Torvalds 1471da177e4SLinus Torvalds typedef struct { 1481da177e4SLinus Torvalds ax25_address calls[AX25_MAX_DIGIS]; 1491da177e4SLinus Torvalds unsigned char repeated[AX25_MAX_DIGIS]; 1501da177e4SLinus Torvalds unsigned char ndigi; 1511da177e4SLinus Torvalds char lastrepeat; 1521da177e4SLinus Torvalds } ax25_digi; 1531da177e4SLinus Torvalds 1541da177e4SLinus Torvalds typedef struct ax25_route { 1551da177e4SLinus Torvalds struct ax25_route *next; 1561da177e4SLinus Torvalds atomic_t ref; 1571da177e4SLinus Torvalds ax25_address callsign; 1581da177e4SLinus Torvalds struct net_device *dev; 1591da177e4SLinus Torvalds ax25_digi *digipeat; 1601da177e4SLinus Torvalds char ip_mode; 1611da177e4SLinus Torvalds struct timer_list timer; 1621da177e4SLinus Torvalds } ax25_route; 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds typedef struct { 1651da177e4SLinus Torvalds char slave; /* slave_mode? */ 1661da177e4SLinus Torvalds struct timer_list slave_timer; /* timeout timer */ 1671da177e4SLinus Torvalds unsigned short slave_timeout; /* when? */ 1681da177e4SLinus Torvalds } ax25_dama_info; 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds struct ctl_table; 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvalds typedef struct ax25_dev { 1731da177e4SLinus Torvalds struct ax25_dev *next; 1741da177e4SLinus Torvalds struct net_device *dev; 1751da177e4SLinus Torvalds struct net_device *forward; 1761da177e4SLinus Torvalds struct ctl_table *systable; 1771da177e4SLinus Torvalds int values[AX25_MAX_VALUES]; 1781da177e4SLinus Torvalds #if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER) 1791da177e4SLinus Torvalds ax25_dama_info dama; 1801da177e4SLinus Torvalds #endif 1811da177e4SLinus Torvalds } ax25_dev; 1821da177e4SLinus Torvalds 1831da177e4SLinus Torvalds typedef struct ax25_cb { 1841da177e4SLinus Torvalds struct hlist_node ax25_node; 1851da177e4SLinus Torvalds ax25_address source_addr, dest_addr; 1861da177e4SLinus Torvalds ax25_digi *digipeat; 1871da177e4SLinus Torvalds ax25_dev *ax25_dev; 1881da177e4SLinus Torvalds unsigned char iamdigi; 1891da177e4SLinus Torvalds unsigned char state, modulus, pidincl; 1901da177e4SLinus Torvalds unsigned short vs, vr, va; 1911da177e4SLinus Torvalds unsigned char condition, backoff; 1921da177e4SLinus Torvalds unsigned char n2, n2count; 1931da177e4SLinus Torvalds struct timer_list t1timer, t2timer, t3timer, idletimer; 1941da177e4SLinus Torvalds unsigned long t1, t2, t3, idle, rtt; 1951da177e4SLinus Torvalds unsigned short paclen, fragno, fraglen; 1961da177e4SLinus Torvalds struct sk_buff_head write_queue; 1971da177e4SLinus Torvalds struct sk_buff_head reseq_queue; 1981da177e4SLinus Torvalds struct sk_buff_head ack_queue; 1991da177e4SLinus Torvalds struct sk_buff_head frag_queue; 2001da177e4SLinus Torvalds unsigned char window; 2011da177e4SLinus Torvalds struct timer_list timer, dtimer; 2021da177e4SLinus Torvalds struct sock *sk; /* Backlink to socket */ 2031da177e4SLinus Torvalds atomic_t refcount; 2041da177e4SLinus Torvalds } ax25_cb; 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds #define ax25_sk(__sk) ((ax25_cb *)(__sk)->sk_protinfo) 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds #define ax25_for_each(__ax25, node, list) \ 2091da177e4SLinus Torvalds hlist_for_each_entry(__ax25, node, list, ax25_node) 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds #define ax25_cb_hold(__ax25) \ 2121da177e4SLinus Torvalds atomic_inc(&((__ax25)->refcount)) 2131da177e4SLinus Torvalds 2141da177e4SLinus Torvalds static __inline__ void ax25_cb_put(ax25_cb *ax25) 2151da177e4SLinus Torvalds { 2161da177e4SLinus Torvalds if (atomic_dec_and_test(&ax25->refcount)) { 2171da177e4SLinus Torvalds if (ax25->digipeat) 2181da177e4SLinus Torvalds kfree(ax25->digipeat); 2191da177e4SLinus Torvalds kfree(ax25); 2201da177e4SLinus Torvalds } 2211da177e4SLinus Torvalds } 2221da177e4SLinus Torvalds 22356cb5156SArnaldo Carvalho de Melo static inline unsigned short ax25_type_trans(struct sk_buff *skb, struct net_device *dev) 22456cb5156SArnaldo Carvalho de Melo { 22556cb5156SArnaldo Carvalho de Melo skb->dev = dev; 22656cb5156SArnaldo Carvalho de Melo skb->pkt_type = PACKET_HOST; 22756cb5156SArnaldo Carvalho de Melo skb->mac.raw = skb->data; 22856cb5156SArnaldo Carvalho de Melo return htons(ETH_P_AX25); 22956cb5156SArnaldo Carvalho de Melo } 23056cb5156SArnaldo Carvalho de Melo 2311da177e4SLinus Torvalds /* af_ax25.c */ 2321da177e4SLinus Torvalds extern struct hlist_head ax25_list; 2331da177e4SLinus Torvalds extern spinlock_t ax25_list_lock; 2341da177e4SLinus Torvalds extern void ax25_cb_add(ax25_cb *); 2351da177e4SLinus Torvalds struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int); 2361da177e4SLinus Torvalds struct sock *ax25_get_socket(ax25_address *, ax25_address *, int); 2371da177e4SLinus Torvalds extern ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *, struct net_device *); 2381da177e4SLinus Torvalds extern void ax25_send_to_raw(ax25_address *, struct sk_buff *, int); 2391da177e4SLinus Torvalds extern void ax25_destroy_socket(ax25_cb *); 2401da177e4SLinus Torvalds extern ax25_cb *ax25_create_cb(void); 2411da177e4SLinus Torvalds extern void ax25_fillin_cb(ax25_cb *, ax25_dev *); 2421da177e4SLinus Torvalds extern struct sock *ax25_make_new(struct sock *, struct ax25_dev *); 2431da177e4SLinus Torvalds 2441da177e4SLinus Torvalds /* ax25_addr.c */ 2451da177e4SLinus Torvalds extern ax25_address null_ax25_address; 2461da177e4SLinus Torvalds extern char *ax2asc(ax25_address *); 2471da177e4SLinus Torvalds extern ax25_address *asc2ax(char *); 2481da177e4SLinus Torvalds extern int ax25cmp(ax25_address *, ax25_address *); 2491da177e4SLinus Torvalds extern int ax25digicmp(ax25_digi *, ax25_digi *); 2501da177e4SLinus Torvalds extern unsigned char *ax25_addr_parse(unsigned char *, int, ax25_address *, ax25_address *, ax25_digi *, int *, int *); 2511da177e4SLinus Torvalds extern int ax25_addr_build(unsigned char *, ax25_address *, ax25_address *, ax25_digi *, int, int); 2521da177e4SLinus Torvalds extern int ax25_addr_size(ax25_digi *); 2531da177e4SLinus Torvalds extern void ax25_digi_invert(ax25_digi *, ax25_digi *); 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds /* ax25_dev.c */ 2561da177e4SLinus Torvalds extern ax25_dev *ax25_dev_list; 2571da177e4SLinus Torvalds extern spinlock_t ax25_dev_lock; 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev) 2601da177e4SLinus Torvalds { 2611da177e4SLinus Torvalds return dev->ax25_ptr; 2621da177e4SLinus Torvalds } 2631da177e4SLinus Torvalds 2641da177e4SLinus Torvalds extern ax25_dev *ax25_addr_ax25dev(ax25_address *); 2651da177e4SLinus Torvalds extern void ax25_dev_device_up(struct net_device *); 2661da177e4SLinus Torvalds extern void ax25_dev_device_down(struct net_device *); 2671da177e4SLinus Torvalds extern int ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *); 2681da177e4SLinus Torvalds extern struct net_device *ax25_fwd_dev(struct net_device *); 2691da177e4SLinus Torvalds extern void ax25_dev_free(void); 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds /* ax25_ds_in.c */ 2721da177e4SLinus Torvalds extern int ax25_ds_frame_in(ax25_cb *, struct sk_buff *, int); 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds /* ax25_ds_subr.c */ 2751da177e4SLinus Torvalds extern void ax25_ds_nr_error_recovery(ax25_cb *); 2761da177e4SLinus Torvalds extern void ax25_ds_enquiry_response(ax25_cb *); 2771da177e4SLinus Torvalds extern void ax25_ds_establish_data_link(ax25_cb *); 2781da177e4SLinus Torvalds extern void ax25_dev_dama_off(ax25_dev *); 2791da177e4SLinus Torvalds extern void ax25_dama_on(ax25_cb *); 2801da177e4SLinus Torvalds extern void ax25_dama_off(ax25_cb *); 2811da177e4SLinus Torvalds 2821da177e4SLinus Torvalds /* ax25_ds_timer.c */ 2831da177e4SLinus Torvalds extern void ax25_ds_set_timer(ax25_dev *); 2841da177e4SLinus Torvalds extern void ax25_ds_del_timer(ax25_dev *); 2851da177e4SLinus Torvalds extern void ax25_ds_timer(ax25_cb *); 2861da177e4SLinus Torvalds extern void ax25_ds_t1_timeout(ax25_cb *); 2871da177e4SLinus Torvalds extern void ax25_ds_heartbeat_expiry(ax25_cb *); 2881da177e4SLinus Torvalds extern void ax25_ds_t3timer_expiry(ax25_cb *); 2891da177e4SLinus Torvalds extern void ax25_ds_idletimer_expiry(ax25_cb *); 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds /* ax25_iface.c */ 2921da177e4SLinus Torvalds extern int ax25_protocol_register(unsigned int, int (*)(struct sk_buff *, ax25_cb *)); 2931da177e4SLinus Torvalds extern void ax25_protocol_release(unsigned int); 2941da177e4SLinus Torvalds extern int ax25_linkfail_register(void (*)(ax25_cb *, int)); 2951da177e4SLinus Torvalds extern void ax25_linkfail_release(void (*)(ax25_cb *, int)); 2961da177e4SLinus Torvalds extern int ax25_listen_register(ax25_address *, struct net_device *); 2971da177e4SLinus Torvalds extern void ax25_listen_release(ax25_address *, struct net_device *); 2981da177e4SLinus Torvalds extern int (*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *); 2991da177e4SLinus Torvalds extern int ax25_listen_mine(ax25_address *, struct net_device *); 3001da177e4SLinus Torvalds extern void ax25_link_failed(ax25_cb *, int); 3011da177e4SLinus Torvalds extern int ax25_protocol_is_registered(unsigned int); 3021da177e4SLinus Torvalds 3031da177e4SLinus Torvalds /* ax25_in.c */ 3041da177e4SLinus Torvalds extern int ax25_rx_iframe(ax25_cb *, struct sk_buff *); 3051da177e4SLinus Torvalds extern int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *); 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds /* ax25_ip.c */ 3081da177e4SLinus Torvalds extern int ax25_encapsulate(struct sk_buff *, struct net_device *, unsigned short, void *, void *, unsigned int); 3091da177e4SLinus Torvalds extern int ax25_rebuild_header(struct sk_buff *); 3101da177e4SLinus Torvalds 3111da177e4SLinus Torvalds /* ax25_out.c */ 3121da177e4SLinus Torvalds extern ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, ax25_digi *, struct net_device *); 3131da177e4SLinus Torvalds extern void ax25_output(ax25_cb *, int, struct sk_buff *); 3141da177e4SLinus Torvalds extern void ax25_kick(ax25_cb *); 3151da177e4SLinus Torvalds extern void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int); 31629c4be51SArnaldo Carvalho de Melo extern void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev); 3171da177e4SLinus Torvalds extern int ax25_check_iframes_acked(ax25_cb *, unsigned short); 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvalds /* ax25_route.c */ 3201da177e4SLinus Torvalds extern void ax25_rt_device_down(struct net_device *); 3211da177e4SLinus Torvalds extern int ax25_rt_ioctl(unsigned int, void __user *); 3221da177e4SLinus Torvalds extern struct file_operations ax25_route_fops; 3231da177e4SLinus Torvalds extern int ax25_rt_autobind(ax25_cb *, ax25_address *); 3241da177e4SLinus Torvalds extern ax25_route *ax25_rt_find_route(ax25_route *, ax25_address *, 3251da177e4SLinus Torvalds struct net_device *); 3261da177e4SLinus Torvalds extern struct sk_buff *ax25_rt_build_path(struct sk_buff *, ax25_address *, ax25_address *, ax25_digi *); 3271da177e4SLinus Torvalds extern void ax25_rt_free(void); 3281da177e4SLinus Torvalds 3291da177e4SLinus Torvalds static inline void ax25_put_route(ax25_route *ax25_rt) 3301da177e4SLinus Torvalds { 3311da177e4SLinus Torvalds atomic_dec(&ax25_rt->ref); 3321da177e4SLinus Torvalds } 3331da177e4SLinus Torvalds 3341da177e4SLinus Torvalds /* ax25_std_in.c */ 3351da177e4SLinus Torvalds extern int ax25_std_frame_in(ax25_cb *, struct sk_buff *, int); 3361da177e4SLinus Torvalds 3371da177e4SLinus Torvalds /* ax25_std_subr.c */ 3381da177e4SLinus Torvalds extern void ax25_std_nr_error_recovery(ax25_cb *); 3391da177e4SLinus Torvalds extern void ax25_std_establish_data_link(ax25_cb *); 3401da177e4SLinus Torvalds extern void ax25_std_transmit_enquiry(ax25_cb *); 3411da177e4SLinus Torvalds extern void ax25_std_enquiry_response(ax25_cb *); 3421da177e4SLinus Torvalds extern void ax25_std_timeout_response(ax25_cb *); 3431da177e4SLinus Torvalds 3441da177e4SLinus Torvalds /* ax25_std_timer.c */ 3451da177e4SLinus Torvalds extern void ax25_std_heartbeat_expiry(ax25_cb *); 3461da177e4SLinus Torvalds extern void ax25_std_t1timer_expiry(ax25_cb *); 3471da177e4SLinus Torvalds extern void ax25_std_t2timer_expiry(ax25_cb *); 3481da177e4SLinus Torvalds extern void ax25_std_t3timer_expiry(ax25_cb *); 3491da177e4SLinus Torvalds extern void ax25_std_idletimer_expiry(ax25_cb *); 3501da177e4SLinus Torvalds 3511da177e4SLinus Torvalds /* ax25_subr.c */ 3521da177e4SLinus Torvalds extern void ax25_clear_queues(ax25_cb *); 3531da177e4SLinus Torvalds extern void ax25_frames_acked(ax25_cb *, unsigned short); 3541da177e4SLinus Torvalds extern void ax25_requeue_frames(ax25_cb *); 3551da177e4SLinus Torvalds extern int ax25_validate_nr(ax25_cb *, unsigned short); 3561da177e4SLinus Torvalds extern int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *); 3571da177e4SLinus Torvalds extern void ax25_send_control(ax25_cb *, int, int, int); 3581da177e4SLinus Torvalds extern void ax25_return_dm(struct net_device *, ax25_address *, ax25_address *, ax25_digi *); 3591da177e4SLinus Torvalds extern void ax25_calculate_t1(ax25_cb *); 3601da177e4SLinus Torvalds extern void ax25_calculate_rtt(ax25_cb *); 3611da177e4SLinus Torvalds extern void ax25_disconnect(ax25_cb *, int); 3621da177e4SLinus Torvalds 3631da177e4SLinus Torvalds /* ax25_timer.c */ 3641da177e4SLinus Torvalds extern void ax25_start_heartbeat(ax25_cb *); 3651da177e4SLinus Torvalds extern void ax25_start_t1timer(ax25_cb *); 3661da177e4SLinus Torvalds extern void ax25_start_t2timer(ax25_cb *); 3671da177e4SLinus Torvalds extern void ax25_start_t3timer(ax25_cb *); 3681da177e4SLinus Torvalds extern void ax25_start_idletimer(ax25_cb *); 3691da177e4SLinus Torvalds extern void ax25_stop_heartbeat(ax25_cb *); 3701da177e4SLinus Torvalds extern void ax25_stop_t1timer(ax25_cb *); 3711da177e4SLinus Torvalds extern void ax25_stop_t2timer(ax25_cb *); 3721da177e4SLinus Torvalds extern void ax25_stop_t3timer(ax25_cb *); 3731da177e4SLinus Torvalds extern void ax25_stop_idletimer(ax25_cb *); 3741da177e4SLinus Torvalds extern int ax25_t1timer_running(ax25_cb *); 3751da177e4SLinus Torvalds extern unsigned long ax25_display_timer(struct timer_list *); 3761da177e4SLinus Torvalds 3771da177e4SLinus Torvalds /* ax25_uid.c */ 3781da177e4SLinus Torvalds extern int ax25_uid_policy; 3791da177e4SLinus Torvalds extern ax25_address *ax25_findbyuid(uid_t); 3801da177e4SLinus Torvalds extern int ax25_uid_ioctl(int, struct sockaddr_ax25 *); 3811da177e4SLinus Torvalds extern struct file_operations ax25_uid_fops; 3821da177e4SLinus Torvalds extern void ax25_uid_free(void); 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds /* sysctl_net_ax25.c */ 3851da177e4SLinus Torvalds #ifdef CONFIG_SYSCTL 3861da177e4SLinus Torvalds extern void ax25_register_sysctl(void); 3871da177e4SLinus Torvalds extern void ax25_unregister_sysctl(void); 3881da177e4SLinus Torvalds #else 3891da177e4SLinus Torvalds static inline void ax25_register_sysctl(void) {}; 3901da177e4SLinus Torvalds static inline void ax25_unregister_sysctl(void) {}; 3911da177e4SLinus Torvalds #endif /* CONFIG_SYSCTL */ 3921da177e4SLinus Torvalds 3931da177e4SLinus Torvalds #endif 394