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- #ifndef NULLAXADDR
-
- #include "global.h"
-
- /* AX.25 datagram (address) sub-layer definitions */
-
- #define NAXROUTE 5 /* Number of hash chains in routing table */
- #define MAXDIGIS 7 /* Maximum number of digipeaters */
- #define ALEN 6 /* Number of chars in callsign field */
- #define AXALEN 7 /* Total AX.25 address length, including SSID */
-
- /* Internal representation of an AX.25 address */
- #ifndef SOCK_STREAM
- struct ax25_addr {
- char call[ALEN];
- char ssid;
- };
- #endif
- #define SSID 0x1e /* Sub station ID */
- #define REPEATED 0x80 /* Has-been-repeated bit in repeater field */
- #define E 0x01 /* Address extension bit */
- #define C 0x80 /* Command/response designation */
- #define NULLAXADDR (struct ax25_addr *)0
- /* Our AX.25 address */
- extern struct ax25_addr Mycall;
-
- /* AX.25 broadcast address: "QST -0" in shifted ASCII */
- extern struct ax25_addr Ax25_bdcst;
-
- extern int Digipeat;
- extern int Ax25mbox;
-
- /* Internal representation of an AX.25 header */
- struct ax25 {
- struct ax25_addr dest; /* Destination address */
- struct ax25_addr source; /* Source address */
- struct ax25_addr digis[MAXDIGIS]; /* Digi string */
- int ndigis; /* Number of digipeaters */
- int cmdrsp; /* Command/response */
- };
-
- /* C-bit stuff */
- #define UNKNOWN 0
- #define COMMAND 1
- #define RESPONSE 2
-
- /* AX.25 routing table entry */
- struct ax_route {
- struct ax_route *prev; /* Linked list pointers */
- struct ax_route *next;
- struct ax25_addr target;
- struct ax25_addr digis[MAXDIGIS];
- int ndigis;
- char type;
- #define AX_LOCAL 1 /* Set by local ax25 route command */
- #define AX_AUTO 2 /* Set by incoming packet */
- };
- #define NULLAXR ((struct ax_route *)0)
-
- extern struct ax_route *Ax_routes[NAXROUTE];
- extern struct ax_route Ax_default;
-
- /* AX.25 Level 3 Protocol IDs (PIDs) */
- #define PID_X25 0x01 /* CCITT X.25 PLP */
- #define PID_SEGMENT 0x08 /* Segmentation fragment */
- #define PID_TEXNET 0xc3 /* TEXNET datagram protocol */
- #define PID_IP 0xcc /* ARPA Internet Protocol */
- #define PID_ARP 0xcd /* ARPA Address Resolution Protocol */
- #define PID_NETROM 0xcf /* NET/ROM */
- #define PID_NO_L3 0xf0 /* No level 3 protocol */
-
- #define SEG_FIRST 0x80 /* First segment of a sequence */
- #define SEG_REM 0x7f /* Mask for # segments remaining */
-
- /* Codes for the open_ax25 call */
- #define AX_PASSIVE 0
- #define AX_ACTIVE 1
- #define AX_SERVER 2 /* Passive, clone on opening */
-
- /* In ax25.c: */
- struct ax_route *ax_add __ARGS((struct ax25_addr *,int,struct ax25_addr *,int));
- int ax_drop __ARGS((struct ax25_addr *));
- struct ax_route *ax_lookup __ARGS((struct ax25_addr *));
- void ax_recv __ARGS((struct iface *,struct mbuf *));
- int ax_send __ARGS((struct mbuf *bp,struct iface *iface,int32 gateway,int prec,
- int del,int tput,int rel));
- int ax_output __ARGS((struct iface *iface,char *dest,char *source,int16 pid,
- struct mbuf *data));
- void axarp __ARGS((void));
- int sendframe __ARGS((struct ax25_cb *axp,int cmdrsp,int ctl,struct mbuf *data));
-
- /* In ax25cmd.c: */
- int axnrconnect __ARGS((struct session *sp,char *fsocket,int len));
- void axnrhandle __ARGS((int s,void *t,void *p));
- void st_ax25 __ARGS((struct ax25_cb *axp));
-
- /* In ax25user.c: */
- int ax25val __ARGS((struct ax25_cb *axp));
- int disc_ax25 __ARGS((struct ax25_cb *axp));
- int kick_ax25 __ARGS((struct ax25_cb *axp));
- struct ax25_cb *open_ax25 __ARGS((struct iface *,struct ax25_addr *,struct ax25_addr *,
- int,int16,
- void (*) __ARGS((struct ax25_cb *,int)),
- void (*) __ARGS((struct ax25_cb *,int)),
- void (*) __ARGS((struct ax25_cb *,int,int)),
- int user));
- struct mbuf *recv_ax25 __ARGS((struct ax25_cb *axp,int16 cnt));
- int reset_ax25 __ARGS((struct ax25_cb *axp));
- int send_ax25 __ARGS((struct ax25_cb *axp,struct mbuf *bp,int pid));
-
- /* In ax25subr.c: */
- int addreq __ARGS((struct ax25_addr *a,struct ax25_addr *b));
- int atohax25 __ARGS((struct ax25 *hdr,char *hwaddr,struct ax25_addr *source));
- struct ax25_cb *cr_ax25 __ARGS((struct ax25_addr *addr));
- void del_ax25 __ARGS((struct ax25_cb *axp));
- struct ax25_cb *find_ax25 __ARGS((struct ax25_addr *));
- char *getaxaddr __ARGS((struct ax25_addr *ap,char *cp));
- struct mbuf *htonax25 __ARGS((struct ax25 *hdr,struct mbuf *data));
- int ntohax25 __ARGS((struct ax25 *hdr,struct mbuf **bpp));
- int pax25 __ARGS((char *e,struct ax25_addr *addr));
- int psax25 __ARGS((char *e,char *addr));
- char *putaxaddr __ARGS((char *cp,struct ax25_addr *ap));
- int setcall __ARGS((struct ax25_addr *out,char *call));
- int setpath __ARGS((char *out,char *in));
-
- /* In socket.c: */
- void beac_input __ARGS((struct iface *iface,struct ax25_addr *src,struct mbuf *bp));
- void s_arcall __ARGS((struct ax25_cb *axp,int cnt));
- void s_ascall __ARGS((struct ax25_cb *axp,int old,int new));
- void s_atcall __ARGS((struct ax25_cb *axp,int cnt));
-
- #endif /* NULLAXADDR */
-