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/ax25.h> 101da177e4SLinus Torvalds #include <linux/spinlock.h> 111da177e4SLinus Torvalds #include <linux/timer.h> 121da177e4SLinus Torvalds #include <linux/list.h> 135a0e3ad6STejun Heo #include <linux/slab.h> 1407f2282fSReshetova, Elena #include <linux/refcount.h> 153b6a94beSEric W. Biederman #include <net/neighbour.h> 163200392bSDavid Miller #include <net/sock.h> 171da177e4SLinus Torvalds 181da177e4SLinus Torvalds #define AX25_T1CLAMPLO 1 191da177e4SLinus Torvalds #define AX25_T1CLAMPHI (30 * HZ) 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #define AX25_BPQ_HEADER_LEN 16 221da177e4SLinus Torvalds #define AX25_KISS_HEADER_LEN 1 231da177e4SLinus Torvalds 241da177e4SLinus Torvalds #define AX25_HEADER_LEN 17 251da177e4SLinus Torvalds #define AX25_ADDR_LEN 7 261da177e4SLinus Torvalds #define AX25_DIGI_HEADER_LEN (AX25_MAX_DIGIS * AX25_ADDR_LEN) 271da177e4SLinus Torvalds #define AX25_MAX_HEADER_LEN (AX25_HEADER_LEN + AX25_DIGI_HEADER_LEN) 281da177e4SLinus Torvalds 291da177e4SLinus Torvalds /* AX.25 Protocol IDs */ 301da177e4SLinus Torvalds #define AX25_P_ROSE 0x01 313bf0ae7bSRalf Baechle #define AX25_P_VJCOMP 0x06 /* Compressed TCP/IP packet */ 323bf0ae7bSRalf Baechle /* Van Jacobsen (RFC 1144) */ 333bf0ae7bSRalf Baechle #define AX25_P_VJUNCOMP 0x07 /* Uncompressed TCP/IP packet */ 343bf0ae7bSRalf Baechle /* Van Jacobsen (RFC 1144) */ 353bf0ae7bSRalf Baechle #define AX25_P_SEGMENT 0x08 /* Segmentation fragment */ 363bf0ae7bSRalf Baechle #define AX25_P_TEXNET 0xc3 /* TEXTNET datagram protocol */ 373bf0ae7bSRalf Baechle #define AX25_P_LQ 0xc4 /* Link Quality Protocol */ 383bf0ae7bSRalf Baechle #define AX25_P_ATALK 0xca /* Appletalk */ 393bf0ae7bSRalf Baechle #define AX25_P_ATALK_ARP 0xcb /* Appletalk ARP */ 403bf0ae7bSRalf Baechle #define AX25_P_IP 0xcc /* ARPA Internet Protocol */ 41f4ab2f72SJoe Perches #define AX25_P_ARP 0xcd /* ARPA Address Resolution */ 423bf0ae7bSRalf Baechle #define AX25_P_FLEXNET 0xce /* FlexNet */ 433bf0ae7bSRalf Baechle #define AX25_P_NETROM 0xcf /* NET/ROM */ 443bf0ae7bSRalf Baechle #define AX25_P_TEXT 0xF0 /* No layer 3 protocol impl. */ 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds /* AX.25 Segment control values */ 471da177e4SLinus Torvalds #define AX25_SEG_REM 0x7F 481da177e4SLinus Torvalds #define AX25_SEG_FIRST 0x80 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds #define AX25_CBIT 0x80 /* Command/Response bit */ 511da177e4SLinus Torvalds #define AX25_EBIT 0x01 /* HDLC Address Extension bit */ 521da177e4SLinus Torvalds #define AX25_HBIT 0x80 /* Has been repeated bit */ 531da177e4SLinus Torvalds 541da177e4SLinus Torvalds #define AX25_SSSID_SPARE 0x60 /* Unused bits in SSID for standard AX.25 */ 551da177e4SLinus Torvalds #define AX25_ESSID_SPARE 0x20 /* Unused bits in SSID for extended AX.25 */ 561da177e4SLinus Torvalds #define AX25_DAMA_FLAG 0x20 /* Well, it is *NOT* unused! (dl1bke 951121 */ 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds #define AX25_COND_ACK_PENDING 0x01 591da177e4SLinus Torvalds #define AX25_COND_REJECT 0x02 601da177e4SLinus Torvalds #define AX25_COND_PEER_RX_BUSY 0x04 611da177e4SLinus Torvalds #define AX25_COND_OWN_RX_BUSY 0x08 621da177e4SLinus Torvalds #define AX25_COND_DAMA_MODE 0x10 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds #ifndef _LINUX_NETDEVICE_H 651da177e4SLinus Torvalds #include <linux/netdevice.h> 661da177e4SLinus Torvalds #endif 671da177e4SLinus Torvalds 681da177e4SLinus Torvalds /* Upper sub-layer (LAPB) definitions */ 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds /* Control field templates */ 711da177e4SLinus Torvalds #define AX25_I 0x00 /* Information frames */ 721da177e4SLinus Torvalds #define AX25_S 0x01 /* Supervisory frames */ 731da177e4SLinus Torvalds #define AX25_RR 0x01 /* Receiver ready */ 741da177e4SLinus Torvalds #define AX25_RNR 0x05 /* Receiver not ready */ 751da177e4SLinus Torvalds #define AX25_REJ 0x09 /* Reject */ 761da177e4SLinus Torvalds #define AX25_U 0x03 /* Unnumbered frames */ 771da177e4SLinus Torvalds #define AX25_SABM 0x2f /* Set Asynchronous Balanced Mode */ 781da177e4SLinus Torvalds #define AX25_SABME 0x6f /* Set Asynchronous Balanced Mode Extended */ 791da177e4SLinus Torvalds #define AX25_DISC 0x43 /* Disconnect */ 801da177e4SLinus Torvalds #define AX25_DM 0x0f /* Disconnected mode */ 811da177e4SLinus Torvalds #define AX25_UA 0x63 /* Unnumbered acknowledge */ 821da177e4SLinus Torvalds #define AX25_FRMR 0x87 /* Frame reject */ 831da177e4SLinus Torvalds #define AX25_UI 0x03 /* Unnumbered information */ 841da177e4SLinus Torvalds #define AX25_XID 0xaf /* Exchange information */ 851da177e4SLinus Torvalds #define AX25_TEST 0xe3 /* Test */ 861da177e4SLinus Torvalds 871da177e4SLinus Torvalds #define AX25_PF 0x10 /* Poll/final bit for standard AX.25 */ 881da177e4SLinus Torvalds #define AX25_EPF 0x01 /* Poll/final bit for extended AX.25 */ 891da177e4SLinus Torvalds 901da177e4SLinus Torvalds #define AX25_ILLEGAL 0x100 /* Impossible to be a real frame type */ 911da177e4SLinus Torvalds 921da177e4SLinus Torvalds #define AX25_POLLOFF 0 931da177e4SLinus Torvalds #define AX25_POLLON 1 941da177e4SLinus Torvalds 951da177e4SLinus Torvalds /* AX25 L2 C-bit */ 961da177e4SLinus Torvalds #define AX25_COMMAND 1 971da177e4SLinus Torvalds #define AX25_RESPONSE 2 981da177e4SLinus Torvalds 991da177e4SLinus Torvalds /* Define Link State constants. */ 1001da177e4SLinus Torvalds 1011da177e4SLinus Torvalds enum { 102b01ef8ffSRalf Baechle AX25_STATE_0, /* Listening */ 103b01ef8ffSRalf Baechle AX25_STATE_1, /* SABM sent */ 104b01ef8ffSRalf Baechle AX25_STATE_2, /* DISC sent */ 105b01ef8ffSRalf Baechle AX25_STATE_3, /* Established */ 106b01ef8ffSRalf Baechle AX25_STATE_4 /* Recovery */ 1071da177e4SLinus Torvalds }; 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds #define AX25_MODULUS 8 /* Standard AX.25 modulus */ 1101da177e4SLinus Torvalds #define AX25_EMODULUS 128 /* Extended AX.25 modulus */ 1111da177e4SLinus Torvalds 1121da177e4SLinus Torvalds enum { 1131da177e4SLinus Torvalds AX25_PROTO_STD_SIMPLEX, 1141da177e4SLinus Torvalds AX25_PROTO_STD_DUPLEX, 115c7c694d1SRalf Baechle DL5RB #ifdef CONFIG_AX25_DAMA_SLAVE 1161da177e4SLinus Torvalds AX25_PROTO_DAMA_SLAVE, 117c7c694d1SRalf Baechle DL5RB #ifdef CONFIG_AX25_DAMA_MASTER 118c7c694d1SRalf Baechle DL5RB AX25_PROTO_DAMA_MASTER, 119c7c694d1SRalf Baechle DL5RB #define AX25_PROTO_MAX AX25_PROTO_DAMA_MASTER 120c7c694d1SRalf Baechle DL5RB #endif 121c7c694d1SRalf Baechle DL5RB #endif 122c7c694d1SRalf Baechle DL5RB __AX25_PROTO_MAX, 123c7c694d1SRalf Baechle DL5RB AX25_PROTO_MAX = __AX25_PROTO_MAX -1 1241da177e4SLinus Torvalds }; 1251da177e4SLinus Torvalds 1261da177e4SLinus Torvalds enum { 1271da177e4SLinus Torvalds AX25_VALUES_IPDEFMODE, /* 0=DG 1=VC */ 1281da177e4SLinus Torvalds AX25_VALUES_AXDEFMODE, /* 0=Normal 1=Extended Seq Nos */ 1291da177e4SLinus Torvalds AX25_VALUES_BACKOFF, /* 0=None 1=Linear 2=Exponential */ 1301da177e4SLinus Torvalds AX25_VALUES_CONMODE, /* Allow connected modes - 0=No 1=no "PID text" 2=all PIDs */ 1311da177e4SLinus Torvalds AX25_VALUES_WINDOW, /* Default window size for standard AX.25 */ 1321da177e4SLinus Torvalds AX25_VALUES_EWINDOW, /* Default window size for extended AX.25 */ 1331da177e4SLinus Torvalds AX25_VALUES_T1, /* Default T1 timeout value */ 1341da177e4SLinus Torvalds AX25_VALUES_T2, /* Default T2 timeout value */ 1351da177e4SLinus Torvalds AX25_VALUES_T3, /* Default T3 timeout value */ 1361da177e4SLinus Torvalds AX25_VALUES_IDLE, /* Connected mode idle timer */ 1371da177e4SLinus Torvalds AX25_VALUES_N2, /* Default N2 value */ 1381da177e4SLinus Torvalds AX25_VALUES_PACLEN, /* AX.25 MTU */ 1391da177e4SLinus Torvalds AX25_VALUES_PROTOCOL, /* Std AX.25, DAMA Slave, DAMA Master */ 1401da177e4SLinus Torvalds AX25_VALUES_DS_TIMEOUT, /* DAMA Slave timeout */ 1411da177e4SLinus Torvalds AX25_MAX_VALUES /* THIS MUST REMAIN THE LAST ENTRY OF THIS LIST */ 1421da177e4SLinus Torvalds }; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds #define AX25_DEF_IPDEFMODE 0 /* Datagram */ 1451da177e4SLinus Torvalds #define AX25_DEF_AXDEFMODE 0 /* Normal */ 1461da177e4SLinus Torvalds #define AX25_DEF_BACKOFF 1 /* Linear backoff */ 1471da177e4SLinus Torvalds #define AX25_DEF_CONMODE 2 /* Connected mode allowed */ 1481da177e4SLinus Torvalds #define AX25_DEF_WINDOW 2 /* Window=2 */ 1491da177e4SLinus Torvalds #define AX25_DEF_EWINDOW 32 /* Module-128 Window=32 */ 150e1fdb5b3SRalf Baechle #define AX25_DEF_T1 10000 /* T1=10s */ 151e1fdb5b3SRalf Baechle #define AX25_DEF_T2 3000 /* T2=3s */ 152e1fdb5b3SRalf Baechle #define AX25_DEF_T3 300000 /* T3=300s */ 1531da177e4SLinus Torvalds #define AX25_DEF_N2 10 /* N2=10 */ 154e1fdb5b3SRalf Baechle #define AX25_DEF_IDLE 0 /* Idle=None */ 1551da177e4SLinus Torvalds #define AX25_DEF_PACLEN 256 /* Paclen=256 */ 1561da177e4SLinus Torvalds #define AX25_DEF_PROTOCOL AX25_PROTO_STD_SIMPLEX /* Standard AX.25 */ 157e1fdb5b3SRalf Baechle #define AX25_DEF_DS_TIMEOUT 180000 /* DAMA timeout 3 minutes */ 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds typedef struct ax25_uid_assoc { 16001d7dd0eSRalf Baechle struct hlist_node uid_node; 16107f2282fSReshetova, Elena refcount_t refcount; 162d13fda85SEric W. Biederman kuid_t uid; 1631da177e4SLinus Torvalds ax25_address call; 1641da177e4SLinus Torvalds } ax25_uid_assoc; 1651da177e4SLinus Torvalds 166b67bfe0dSSasha Levin #define ax25_uid_for_each(__ax25, list) \ 167b67bfe0dSSasha Levin hlist_for_each_entry(__ax25, list, uid_node) 16801d7dd0eSRalf Baechle 16901d7dd0eSRalf Baechle #define ax25_uid_hold(ax25) \ 17007f2282fSReshetova, Elena refcount_inc(&((ax25)->refcount)) 17101d7dd0eSRalf Baechle 17201d7dd0eSRalf Baechle static inline void ax25_uid_put(ax25_uid_assoc *assoc) 17301d7dd0eSRalf Baechle { 17407f2282fSReshetova, Elena if (refcount_dec_and_test(&assoc->refcount)) { 17501d7dd0eSRalf Baechle kfree(assoc); 17601d7dd0eSRalf Baechle } 17701d7dd0eSRalf Baechle } 17801d7dd0eSRalf Baechle 1791da177e4SLinus Torvalds typedef struct { 1801da177e4SLinus Torvalds ax25_address calls[AX25_MAX_DIGIS]; 1811da177e4SLinus Torvalds unsigned char repeated[AX25_MAX_DIGIS]; 1821da177e4SLinus Torvalds unsigned char ndigi; 1834595f251SRalf Baechle signed char lastrepeat; 1841da177e4SLinus Torvalds } ax25_digi; 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds typedef struct ax25_route { 1871da177e4SLinus Torvalds struct ax25_route *next; 18839f25d42SReshetova, Elena refcount_t refcount; 1891da177e4SLinus Torvalds ax25_address callsign; 1901da177e4SLinus Torvalds struct net_device *dev; 1911da177e4SLinus Torvalds ax25_digi *digipeat; 1921da177e4SLinus Torvalds char ip_mode; 1931da177e4SLinus Torvalds } ax25_route; 1941da177e4SLinus Torvalds 195006f68b8SRalf Baechle DL5RB static inline void ax25_hold_route(ax25_route *ax25_rt) 196006f68b8SRalf Baechle DL5RB { 19739f25d42SReshetova, Elena refcount_inc(&ax25_rt->refcount); 198006f68b8SRalf Baechle DL5RB } 199006f68b8SRalf Baechle DL5RB 200c1d8f804SJoe Perches void __ax25_put_route(ax25_route *ax25_rt); 201006f68b8SRalf Baechle DL5RB 202006f68b8SRalf Baechle DL5RB static inline void ax25_put_route(ax25_route *ax25_rt) 203006f68b8SRalf Baechle DL5RB { 20439f25d42SReshetova, Elena if (refcount_dec_and_test(&ax25_rt->refcount)) 205006f68b8SRalf Baechle DL5RB __ax25_put_route(ax25_rt); 206006f68b8SRalf Baechle DL5RB } 207006f68b8SRalf Baechle DL5RB 2081da177e4SLinus Torvalds typedef struct { 2091da177e4SLinus Torvalds char slave; /* slave_mode? */ 2101da177e4SLinus Torvalds struct timer_list slave_timer; /* timeout timer */ 2111da177e4SLinus Torvalds unsigned short slave_timeout; /* when? */ 2121da177e4SLinus Torvalds } ax25_dama_info; 2131da177e4SLinus Torvalds 2141da177e4SLinus Torvalds struct ctl_table; 2151da177e4SLinus Torvalds 2161da177e4SLinus Torvalds typedef struct ax25_dev { 2171da177e4SLinus Torvalds struct ax25_dev *next; 2181da177e4SLinus Torvalds struct net_device *dev; 2191da177e4SLinus Torvalds struct net_device *forward; 2200ca7a4c8SEric W. Biederman struct ctl_table_header *sysheader; 2211da177e4SLinus Torvalds int values[AX25_MAX_VALUES]; 2221da177e4SLinus Torvalds #if defined(CONFIG_AX25_DAMA_SLAVE) || defined(CONFIG_AX25_DAMA_MASTER) 2231da177e4SLinus Torvalds ax25_dama_info dama; 2241da177e4SLinus Torvalds #endif 2251da177e4SLinus Torvalds } ax25_dev; 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds typedef struct ax25_cb { 2281da177e4SLinus Torvalds struct hlist_node ax25_node; 2291da177e4SLinus Torvalds ax25_address source_addr, dest_addr; 2301da177e4SLinus Torvalds ax25_digi *digipeat; 2311da177e4SLinus Torvalds ax25_dev *ax25_dev; 2321da177e4SLinus Torvalds unsigned char iamdigi; 2331da177e4SLinus Torvalds unsigned char state, modulus, pidincl; 2341da177e4SLinus Torvalds unsigned short vs, vr, va; 2351da177e4SLinus Torvalds unsigned char condition, backoff; 2361da177e4SLinus Torvalds unsigned char n2, n2count; 2371da177e4SLinus Torvalds struct timer_list t1timer, t2timer, t3timer, idletimer; 2381da177e4SLinus Torvalds unsigned long t1, t2, t3, idle, rtt; 2391da177e4SLinus Torvalds unsigned short paclen, fragno, fraglen; 2401da177e4SLinus Torvalds struct sk_buff_head write_queue; 2411da177e4SLinus Torvalds struct sk_buff_head reseq_queue; 2421da177e4SLinus Torvalds struct sk_buff_head ack_queue; 2431da177e4SLinus Torvalds struct sk_buff_head frag_queue; 2441da177e4SLinus Torvalds unsigned char window; 2451da177e4SLinus Torvalds struct timer_list timer, dtimer; 2461da177e4SLinus Torvalds struct sock *sk; /* Backlink to socket */ 2471da177e4SLinus Torvalds atomic_t refcount; 2481da177e4SLinus Torvalds } ax25_cb; 2491da177e4SLinus Torvalds 2503200392bSDavid Miller struct ax25_sock { 2513200392bSDavid Miller struct sock sk; 2523200392bSDavid Miller struct ax25_cb *cb; 2533200392bSDavid Miller }; 2543200392bSDavid Miller 2553200392bSDavid Miller static inline struct ax25_sock *ax25_sk(const struct sock *sk) 2563200392bSDavid Miller { 2573200392bSDavid Miller return (struct ax25_sock *) sk; 2583200392bSDavid Miller } 2593200392bSDavid Miller 2603200392bSDavid Miller static inline struct ax25_cb *sk_to_ax25(const struct sock *sk) 2613200392bSDavid Miller { 2623200392bSDavid Miller return ax25_sk(sk)->cb; 2633200392bSDavid Miller } 2641da177e4SLinus Torvalds 265b67bfe0dSSasha Levin #define ax25_for_each(__ax25, list) \ 266b67bfe0dSSasha Levin hlist_for_each_entry(__ax25, list, ax25_node) 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds #define ax25_cb_hold(__ax25) \ 2691da177e4SLinus Torvalds atomic_inc(&((__ax25)->refcount)) 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds static __inline__ void ax25_cb_put(ax25_cb *ax25) 2721da177e4SLinus Torvalds { 2731da177e4SLinus Torvalds if (atomic_dec_and_test(&ax25->refcount)) { 2741da177e4SLinus Torvalds kfree(ax25->digipeat); 2751da177e4SLinus Torvalds kfree(ax25); 2761da177e4SLinus Torvalds } 2771da177e4SLinus Torvalds } 2781da177e4SLinus Torvalds 279f852640eSAlexey Dobriyan static inline __be16 ax25_type_trans(struct sk_buff *skb, struct net_device *dev) 28056cb5156SArnaldo Carvalho de Melo { 28156cb5156SArnaldo Carvalho de Melo skb->dev = dev; 282459a98edSArnaldo Carvalho de Melo skb_reset_mac_header(skb); 28356cb5156SArnaldo Carvalho de Melo skb->pkt_type = PACKET_HOST; 28456cb5156SArnaldo Carvalho de Melo return htons(ETH_P_AX25); 28556cb5156SArnaldo Carvalho de Melo } 28656cb5156SArnaldo Carvalho de Melo 2871da177e4SLinus Torvalds /* af_ax25.c */ 2881da177e4SLinus Torvalds extern struct hlist_head ax25_list; 2891da177e4SLinus Torvalds extern spinlock_t ax25_list_lock; 290c1d8f804SJoe Perches void ax25_cb_add(ax25_cb *); 2911da177e4SLinus Torvalds struct sock *ax25_find_listener(ax25_address *, int, struct net_device *, int); 2921da177e4SLinus Torvalds struct sock *ax25_get_socket(ax25_address *, ax25_address *, int); 293c1d8f804SJoe Perches ax25_cb *ax25_find_cb(ax25_address *, ax25_address *, ax25_digi *, 294c1d8f804SJoe Perches struct net_device *); 295c1d8f804SJoe Perches void ax25_send_to_raw(ax25_address *, struct sk_buff *, int); 296c1d8f804SJoe Perches void ax25_destroy_socket(ax25_cb *); 297c1d8f804SJoe Perches ax25_cb * __must_check ax25_create_cb(void); 298c1d8f804SJoe Perches void ax25_fillin_cb(ax25_cb *, ax25_dev *); 299c1d8f804SJoe Perches struct sock *ax25_make_new(struct sock *, struct ax25_dev *); 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds /* ax25_addr.c */ 30215b1c0e8SRalf Baechle extern const ax25_address ax25_bcast; 30315b1c0e8SRalf Baechle extern const ax25_address ax25_defaddr; 30415b1c0e8SRalf Baechle extern const ax25_address null_ax25_address; 305c1d8f804SJoe Perches char *ax2asc(char *buf, const ax25_address *); 306c1d8f804SJoe Perches void asc2ax(ax25_address *addr, const char *callsign); 307c1d8f804SJoe Perches int ax25cmp(const ax25_address *, const ax25_address *); 308c1d8f804SJoe Perches int ax25digicmp(const ax25_digi *, const ax25_digi *); 309c1d8f804SJoe Perches const unsigned char *ax25_addr_parse(const unsigned char *, int, 310e8cc49bbSRalf Baechle ax25_address *, ax25_address *, ax25_digi *, int *, int *); 311c1d8f804SJoe Perches int ax25_addr_build(unsigned char *, const ax25_address *, 312e8cc49bbSRalf Baechle const ax25_address *, const ax25_digi *, int, int); 313c1d8f804SJoe Perches int ax25_addr_size(const ax25_digi *); 314c1d8f804SJoe Perches void ax25_digi_invert(const ax25_digi *, ax25_digi *); 3151da177e4SLinus Torvalds 3161da177e4SLinus Torvalds /* ax25_dev.c */ 3171da177e4SLinus Torvalds extern ax25_dev *ax25_dev_list; 3181da177e4SLinus Torvalds extern spinlock_t ax25_dev_lock; 3191da177e4SLinus Torvalds 3201da177e4SLinus Torvalds static inline ax25_dev *ax25_dev_ax25dev(struct net_device *dev) 3211da177e4SLinus Torvalds { 3221da177e4SLinus Torvalds return dev->ax25_ptr; 3231da177e4SLinus Torvalds } 3241da177e4SLinus Torvalds 325c1d8f804SJoe Perches ax25_dev *ax25_addr_ax25dev(ax25_address *); 326c1d8f804SJoe Perches void ax25_dev_device_up(struct net_device *); 327c1d8f804SJoe Perches void ax25_dev_device_down(struct net_device *); 328c1d8f804SJoe Perches int ax25_fwd_ioctl(unsigned int, struct ax25_fwd_struct *); 329c1d8f804SJoe Perches struct net_device *ax25_fwd_dev(struct net_device *); 330c1d8f804SJoe Perches void ax25_dev_free(void); 3311da177e4SLinus Torvalds 3321da177e4SLinus Torvalds /* ax25_ds_in.c */ 333c1d8f804SJoe Perches int ax25_ds_frame_in(ax25_cb *, struct sk_buff *, int); 3341da177e4SLinus Torvalds 3351da177e4SLinus Torvalds /* ax25_ds_subr.c */ 336c1d8f804SJoe Perches void ax25_ds_nr_error_recovery(ax25_cb *); 337c1d8f804SJoe Perches void ax25_ds_enquiry_response(ax25_cb *); 338c1d8f804SJoe Perches void ax25_ds_establish_data_link(ax25_cb *); 339c1d8f804SJoe Perches void ax25_dev_dama_off(ax25_dev *); 340c1d8f804SJoe Perches void ax25_dama_on(ax25_cb *); 341c1d8f804SJoe Perches void ax25_dama_off(ax25_cb *); 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds /* ax25_ds_timer.c */ 344c1d8f804SJoe Perches void ax25_ds_setup_timer(ax25_dev *); 345c1d8f804SJoe Perches void ax25_ds_set_timer(ax25_dev *); 346c1d8f804SJoe Perches void ax25_ds_del_timer(ax25_dev *); 347c1d8f804SJoe Perches void ax25_ds_timer(ax25_cb *); 348c1d8f804SJoe Perches void ax25_ds_t1_timeout(ax25_cb *); 349c1d8f804SJoe Perches void ax25_ds_heartbeat_expiry(ax25_cb *); 350c1d8f804SJoe Perches void ax25_ds_t3timer_expiry(ax25_cb *); 351c1d8f804SJoe Perches void ax25_ds_idletimer_expiry(ax25_cb *); 3521da177e4SLinus Torvalds 3531da177e4SLinus Torvalds /* ax25_iface.c */ 3548d5cf596SRalf Baechle 3558d5cf596SRalf Baechle struct ax25_protocol { 3568d5cf596SRalf Baechle struct ax25_protocol *next; 3578d5cf596SRalf Baechle unsigned int pid; 3588d5cf596SRalf Baechle int (*func)(struct sk_buff *, ax25_cb *); 3598d5cf596SRalf Baechle }; 3608d5cf596SRalf Baechle 361c1d8f804SJoe Perches void ax25_register_pid(struct ax25_protocol *ap); 362c1d8f804SJoe Perches void ax25_protocol_release(unsigned int); 363a4282717SRalf Baechle 364a4282717SRalf Baechle struct ax25_linkfail { 365a4282717SRalf Baechle struct hlist_node lf_node; 366a4282717SRalf Baechle void (*func)(ax25_cb *, int); 367a4282717SRalf Baechle }; 368a4282717SRalf Baechle 369c1d8f804SJoe Perches void ax25_linkfail_register(struct ax25_linkfail *lf); 370c1d8f804SJoe Perches void ax25_linkfail_release(struct ax25_linkfail *lf); 371c1d8f804SJoe Perches int __must_check ax25_listen_register(ax25_address *, struct net_device *); 372c1d8f804SJoe Perches void ax25_listen_release(ax25_address *, struct net_device *); 373c1d8f804SJoe Perches int(*ax25_protocol_function(unsigned int))(struct sk_buff *, ax25_cb *); 374c1d8f804SJoe Perches int ax25_listen_mine(ax25_address *, struct net_device *); 375c1d8f804SJoe Perches void ax25_link_failed(ax25_cb *, int); 376c1d8f804SJoe Perches int ax25_protocol_is_registered(unsigned int); 3771da177e4SLinus Torvalds 3781da177e4SLinus Torvalds /* ax25_in.c */ 379c1d8f804SJoe Perches int ax25_rx_iframe(ax25_cb *, struct sk_buff *); 380c1d8f804SJoe Perches int ax25_kiss_rcv(struct sk_buff *, struct net_device *, struct packet_type *, 381c1d8f804SJoe Perches struct net_device *); 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds /* ax25_ip.c */ 3841d5da757SEric W. Biederman netdev_tx_t ax25_ip_xmit(struct sk_buff *skb); 3853b04dddeSStephen Hemminger extern const struct header_ops ax25_header_ops; 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds /* ax25_out.c */ 388c1d8f804SJoe Perches ax25_cb *ax25_send_frame(struct sk_buff *, int, ax25_address *, ax25_address *, 389c1d8f804SJoe Perches ax25_digi *, struct net_device *); 390c1d8f804SJoe Perches void ax25_output(ax25_cb *, int, struct sk_buff *); 391c1d8f804SJoe Perches void ax25_kick(ax25_cb *); 392c1d8f804SJoe Perches void ax25_transmit_buffer(ax25_cb *, struct sk_buff *, int); 393c1d8f804SJoe Perches void ax25_queue_xmit(struct sk_buff *skb, struct net_device *dev); 394c1d8f804SJoe Perches int ax25_check_iframes_acked(ax25_cb *, unsigned short); 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds /* ax25_route.c */ 397c1d8f804SJoe Perches void ax25_rt_device_down(struct net_device *); 398c1d8f804SJoe Perches int ax25_rt_ioctl(unsigned int, void __user *); 39954047320SArjan van de Ven extern const struct file_operations ax25_route_fops; 400c1d8f804SJoe Perches ax25_route *ax25_get_route(ax25_address *addr, struct net_device *dev); 401c1d8f804SJoe Perches int ax25_rt_autobind(ax25_cb *, ax25_address *); 402c1d8f804SJoe Perches struct sk_buff *ax25_rt_build_path(struct sk_buff *, ax25_address *, 403c1d8f804SJoe Perches ax25_address *, ax25_digi *); 404c1d8f804SJoe Perches void ax25_rt_free(void); 4051da177e4SLinus Torvalds 4061da177e4SLinus Torvalds /* ax25_std_in.c */ 407c1d8f804SJoe Perches int ax25_std_frame_in(ax25_cb *, struct sk_buff *, int); 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds /* ax25_std_subr.c */ 410c1d8f804SJoe Perches void ax25_std_nr_error_recovery(ax25_cb *); 411c1d8f804SJoe Perches void ax25_std_establish_data_link(ax25_cb *); 412c1d8f804SJoe Perches void ax25_std_transmit_enquiry(ax25_cb *); 413c1d8f804SJoe Perches void ax25_std_enquiry_response(ax25_cb *); 414c1d8f804SJoe Perches void ax25_std_timeout_response(ax25_cb *); 4151da177e4SLinus Torvalds 4161da177e4SLinus Torvalds /* ax25_std_timer.c */ 417c1d8f804SJoe Perches void ax25_std_heartbeat_expiry(ax25_cb *); 418c1d8f804SJoe Perches void ax25_std_t1timer_expiry(ax25_cb *); 419c1d8f804SJoe Perches void ax25_std_t2timer_expiry(ax25_cb *); 420c1d8f804SJoe Perches void ax25_std_t3timer_expiry(ax25_cb *); 421c1d8f804SJoe Perches void ax25_std_idletimer_expiry(ax25_cb *); 4221da177e4SLinus Torvalds 4231da177e4SLinus Torvalds /* ax25_subr.c */ 424c1d8f804SJoe Perches void ax25_clear_queues(ax25_cb *); 425c1d8f804SJoe Perches void ax25_frames_acked(ax25_cb *, unsigned short); 426c1d8f804SJoe Perches void ax25_requeue_frames(ax25_cb *); 427c1d8f804SJoe Perches int ax25_validate_nr(ax25_cb *, unsigned short); 428c1d8f804SJoe Perches int ax25_decode(ax25_cb *, struct sk_buff *, int *, int *, int *); 429c1d8f804SJoe Perches void ax25_send_control(ax25_cb *, int, int, int); 430c1d8f804SJoe Perches void ax25_return_dm(struct net_device *, ax25_address *, ax25_address *, 431c1d8f804SJoe Perches ax25_digi *); 432c1d8f804SJoe Perches void ax25_calculate_t1(ax25_cb *); 433c1d8f804SJoe Perches void ax25_calculate_rtt(ax25_cb *); 434c1d8f804SJoe Perches void ax25_disconnect(ax25_cb *, int); 4351da177e4SLinus Torvalds 4361da177e4SLinus Torvalds /* ax25_timer.c */ 437c1d8f804SJoe Perches void ax25_setup_timers(ax25_cb *); 438c1d8f804SJoe Perches void ax25_start_heartbeat(ax25_cb *); 439c1d8f804SJoe Perches void ax25_start_t1timer(ax25_cb *); 440c1d8f804SJoe Perches void ax25_start_t2timer(ax25_cb *); 441c1d8f804SJoe Perches void ax25_start_t3timer(ax25_cb *); 442c1d8f804SJoe Perches void ax25_start_idletimer(ax25_cb *); 443c1d8f804SJoe Perches void ax25_stop_heartbeat(ax25_cb *); 444c1d8f804SJoe Perches void ax25_stop_t1timer(ax25_cb *); 445c1d8f804SJoe Perches void ax25_stop_t2timer(ax25_cb *); 446c1d8f804SJoe Perches void ax25_stop_t3timer(ax25_cb *); 447c1d8f804SJoe Perches void ax25_stop_idletimer(ax25_cb *); 448c1d8f804SJoe Perches int ax25_t1timer_running(ax25_cb *); 449c1d8f804SJoe Perches unsigned long ax25_display_timer(struct timer_list *); 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds /* ax25_uid.c */ 4521da177e4SLinus Torvalds extern int ax25_uid_policy; 453c1d8f804SJoe Perches ax25_uid_assoc *ax25_findbyuid(kuid_t); 454c1d8f804SJoe Perches int __must_check ax25_uid_ioctl(int, struct sockaddr_ax25 *); 45554047320SArjan van de Ven extern const struct file_operations ax25_uid_fops; 456c1d8f804SJoe Perches void ax25_uid_free(void); 4571da177e4SLinus Torvalds 4581da177e4SLinus Torvalds /* sysctl_net_ax25.c */ 4591da177e4SLinus Torvalds #ifdef CONFIG_SYSCTL 460c1d8f804SJoe Perches int ax25_register_dev_sysctl(ax25_dev *ax25_dev); 461c1d8f804SJoe Perches void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev); 4621da177e4SLinus Torvalds #else 463b9898507SEric W. Biederman static inline int ax25_register_dev_sysctl(ax25_dev *ax25_dev) { return 0; } 464b9898507SEric W. Biederman static inline void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev) {} 4651da177e4SLinus Torvalds #endif /* CONFIG_SYSCTL */ 4661da177e4SLinus Torvalds 4671da177e4SLinus Torvalds #endif 468