* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
- * $Id: fsm.h,v 1.2 1994/04/11 07:18:35 paulus Exp $
+ * $Id: fsm.h,v 1.8 1999/11/15 01:51:50 paulus Exp $
*/
/*
* Packet header = Code, id, length.
*/
-#define HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
+#define HEADERLEN 4
/*
/*
- * Each FSM is described by a fsm_callbacks and a fsm structure.
+ * Each FSM is described by an fsm structure and fsm callbacks.
*/
-typedef struct fsm_callbacks {
- void (*resetci)(); /* Reset our Configuration Information */
- int (*cilen)(); /* Length of our Configuration Information */
- void (*addci)(); /* Add our Configuration Information */
- int (*ackci)(); /* ACK our Configuration Information */
- int (*nakci)(); /* NAK our Configuration Information */
- int (*rejci)(); /* Reject our Configuration Information */
- int (*reqci)(); /* Request peer's Configuration Information */
- void (*up)(); /* Called when fsm reaches OPENED state */
- void (*down)(); /* Called when fsm leaves OPENED state */
- void (*starting)(); /* Called when we want the lower layer */
- void (*finished)(); /* Called when we don't want the lower layer */
- void (*protreject)(); /* Called when Protocol-Reject received */
- void (*retransmit)(); /* Retransmission is necessary */
- int (*extcode)(); /* Called when unknown code received */
- char *proto_name; /* String name for protocol (for messages) */
-} fsm_callbacks;
-
-
typedef struct fsm {
int unit; /* Interface unit number */
int protocol; /* Data Link Layer Protocol field value */
int flags; /* Contains option bits */
u_char id; /* Current id */
u_char reqid; /* Current request id */
+ u_char seen_ack; /* Have received valid Ack/Nak/Rej to Req */
int timeouttime; /* Timeout time in milliseconds */
int maxconfreqtransmits; /* Maximum Configure-Request transmissions */
int retransmits; /* Number of retransmissions left */
int maxtermtransmits; /* Maximum Terminate-Request transmissions */
int nakloops; /* Number of nak loops since last ack */
int maxnakloops; /* Maximum number of nak loops tolerated */
- fsm_callbacks *callbacks; /* Callback routines */
+ struct fsm_callbacks *callbacks; /* Callback routines */
+ char *term_reason; /* Reason for closing protocol */
+ int term_reason_len; /* Length of term_reason */
} fsm;
+typedef struct fsm_callbacks {
+ void (*resetci) /* Reset our Configuration Information */
+ __P((fsm *));
+ int (*cilen) /* Length of our Configuration Information */
+ __P((fsm *));
+ void (*addci) /* Add our Configuration Information */
+ __P((fsm *, u_char *, int *));
+ int (*ackci) /* ACK our Configuration Information */
+ __P((fsm *, u_char *, int));
+ int (*nakci) /* NAK our Configuration Information */
+ __P((fsm *, u_char *, int));
+ int (*rejci) /* Reject our Configuration Information */
+ __P((fsm *, u_char *, int));
+ int (*reqci) /* Request peer's Configuration Information */
+ __P((fsm *, u_char *, int *, int));
+ void (*up) /* Called when fsm reaches OPENED state */
+ __P((fsm *));
+ void (*down) /* Called when fsm leaves OPENED state */
+ __P((fsm *));
+ void (*starting) /* Called when we want the lower layer */
+ __P((fsm *));
+ void (*finished) /* Called when we don't want the lower layer */
+ __P((fsm *));
+ void (*protreject) /* Called when Protocol-Reject received */
+ __P((int));
+ void (*retransmit) /* Retransmission is necessary */
+ __P((fsm *));
+ int (*extcode) /* Called when unknown code received */
+ __P((fsm *, int, int, u_char *, int));
+ char *proto_name; /* String name for protocol (for messages) */
+} fsm_callbacks;
+
+
/*
* Link states.
*/
#define DEFTIMEOUT 3 /* Timeout time in seconds */
#define DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */
#define DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */
-#define DEFMAXNAKLOOPS 10 /* Maximum number of nak loops */
+#define DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */
/*
* Prototypes
*/
-void fsm_init __ARGS((fsm *));
-void fsm_lowerup __ARGS((fsm *));
-void fsm_lowerdown __ARGS((fsm *));
-void fsm_open __ARGS((fsm *));
-void fsm_close __ARGS((fsm *));
-void fsm_input __ARGS((fsm *, u_char *, int));
-void fsm_protreject __ARGS((fsm *));
-void fsm_sdata __ARGS((fsm *, int, int, u_char *, int));
+void fsm_init __P((fsm *));
+void fsm_lowerup __P((fsm *));
+void fsm_lowerdown __P((fsm *));
+void fsm_open __P((fsm *));
+void fsm_close __P((fsm *, char *));
+void fsm_input __P((fsm *, u_char *, int));
+void fsm_protreject __P((fsm *));
+void fsm_sdata __P((fsm *, int, int, u_char *, int));
/*