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Minor changes: coding style (tabs, ident, etc...).
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fbernon
@@ -28,7 +28,7 @@
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* 03-01-01 Marc Boucher <marc@mbsi.ca>
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* Ported to lwIP.
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* 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
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* Original based on BSD code.
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* Original based on BSD code.
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*****************************************************************************/
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/*
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* fsm.h - {Link, IP} Control Protocol Finite State Machine definitions.
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@@ -48,7 +48,7 @@
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $Id: fsm.h,v 1.2 2007/11/29 22:19:57 fbernon Exp $
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* $Id: fsm.h,v 1.3 2007/12/02 23:24:59 fbernon Exp $
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*/
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#ifndef FSM_H
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@@ -60,41 +60,40 @@
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/*
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* LCP Packet header = Code, id, length.
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*/
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#define HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
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#define HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
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/*
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* CP (LCP, IPCP, etc.) codes.
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*/
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#define CONFREQ 1 /* Configuration Request */
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#define CONFACK 2 /* Configuration Ack */
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#define CONFNAK 3 /* Configuration Nak */
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#define CONFREJ 4 /* Configuration Reject */
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#define TERMREQ 5 /* Termination Request */
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#define TERMACK 6 /* Termination Ack */
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#define CODEREJ 7 /* Code Reject */
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#define CONFREQ 1 /* Configuration Request */
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#define CONFACK 2 /* Configuration Ack */
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#define CONFNAK 3 /* Configuration Nak */
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#define CONFREJ 4 /* Configuration Reject */
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#define TERMREQ 5 /* Termination Request */
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#define TERMACK 6 /* Termination Ack */
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#define CODEREJ 7 /* Code Reject */
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/*
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* Link states.
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*/
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#define LS_INITIAL 0 /* Down, hasn't been opened */
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#define LS_STARTING 1 /* Down, been opened */
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#define LS_CLOSED 2 /* Up, hasn't been opened */
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#define LS_STOPPED 3 /* Open, waiting for down event */
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#define LS_CLOSING 4 /* Terminating the connection, not open */
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#define LS_STOPPING 5 /* Terminating, but open */
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#define LS_REQSENT 6 /* We've sent a Config Request */
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#define LS_ACKRCVD 7 /* We've received a Config Ack */
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#define LS_ACKSENT 8 /* We've sent a Config Ack */
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#define LS_OPENED 9 /* Connection available */
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#define LS_INITIAL 0 /* Down, hasn't been opened */
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#define LS_STARTING 1 /* Down, been opened */
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#define LS_CLOSED 2 /* Up, hasn't been opened */
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#define LS_STOPPED 3 /* Open, waiting for down event */
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#define LS_CLOSING 4 /* Terminating the connection, not open */
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#define LS_STOPPING 5 /* Terminating, but open */
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#define LS_REQSENT 6 /* We've sent a Config Request */
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#define LS_ACKRCVD 7 /* We've received a Config Ack */
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#define LS_ACKSENT 8 /* We've sent a Config Ack */
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#define LS_OPENED 9 /* Connection available */
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/*
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* Flags - indicate options controlling FSM operation
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*/
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#define OPT_PASSIVE 1 /* Don't die if we don't get a response */
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#define OPT_RESTART 2 /* Treat 2nd OPEN as DOWN, UP */
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#define OPT_SILENT 4 /* Wait for peer to speak first */
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#define OPT_PASSIVE 1 /* Don't die if we don't get a response */
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#define OPT_RESTART 2 /* Treat 2nd OPEN as DOWN, UP */
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#define OPT_SILENT 4 /* Wait for peer to speak first */
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/*****************************************************************************
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@@ -104,55 +103,41 @@
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* Each FSM is described by an fsm structure and fsm callbacks.
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*/
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typedef struct fsm {
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int unit; /* Interface unit number */
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u_short protocol; /* Data Link Layer Protocol field value */
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int state; /* State */
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int flags; /* Contains option bits */
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u_char id; /* Current id */
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u_char reqid; /* Current request id */
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u_char seen_ack; /* Have received valid Ack/Nak/Rej to Req */
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int timeouttime; /* Timeout time in milliseconds */
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int maxconfreqtransmits;/* Maximum Configure-Request transmissions */
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int retransmits; /* Number of retransmissions left */
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int maxtermtransmits; /* Maximum Terminate-Request transmissions */
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int nakloops; /* Number of nak loops since last ack */
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int maxnakloops; /* Maximum number of nak loops tolerated */
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struct fsm_callbacks* callbacks;/* Callback routines */
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char* term_reason; /* Reason for closing protocol */
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int term_reason_len; /* Length of term_reason */
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int unit; /* Interface unit number */
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u_short protocol; /* Data Link Layer Protocol field value */
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int state; /* State */
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int flags; /* Contains option bits */
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u_char id; /* Current id */
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u_char reqid; /* Current request id */
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u_char seen_ack; /* Have received valid Ack/Nak/Rej to Req */
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int timeouttime; /* Timeout time in milliseconds */
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int maxconfreqtransmits; /* Maximum Configure-Request transmissions */
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int retransmits; /* Number of retransmissions left */
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int maxtermtransmits; /* Maximum Terminate-Request transmissions */
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int nakloops; /* Number of nak loops since last ack */
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int maxnakloops; /* Maximum number of nak loops tolerated */
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struct fsm_callbacks* callbacks; /* Callback routines */
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char* term_reason; /* Reason for closing protocol */
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int term_reason_len; /* Length of term_reason */
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} fsm;
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typedef struct fsm_callbacks {
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void (*resetci) /* Reset our Configuration Information */
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(fsm*);
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int (*cilen) /* Length of our Configuration Information */
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(fsm*);
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void (*addci) /* Add our Configuration Information */
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(fsm*, u_char*, int*);
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int (*ackci) /* ACK our Configuration Information */
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(fsm*, u_char*, int);
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int (*nakci) /* NAK our Configuration Information */
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(fsm*, u_char*, int);
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int (*rejci) /* Reject our Configuration Information */
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(fsm*, u_char*, int);
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int (*reqci) /* Request peer's Configuration Information */
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(fsm*, u_char*, int*, int);
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void (*up) /* Called when fsm reaches LS_OPENED state */
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(fsm*);
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void (*down) /* Called when fsm leaves LS_OPENED state */
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(fsm*);
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void (*starting) /* Called when we want the lower layer */
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(fsm*);
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void (*finished) /* Called when we don't want the lower layer */
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(fsm*);
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void (*protreject) /* Called when Protocol-Reject received */
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(int);
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void (*retransmit) /* Retransmission is necessary */
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(fsm*);
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int (*extcode) /* Called when unknown code received */
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(fsm*, int, u_char, u_char*, int);
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char *proto_name; /* String name for protocol (for messages) */
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void (*resetci)(fsm*); /* Reset our Configuration Information */
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int (*cilen)(fsm*); /* Length of our Configuration Information */
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void (*addci)(fsm*, u_char*, int*); /* Add our Configuration Information */
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int (*ackci)(fsm*, u_char*, int); /* ACK our Configuration Information */
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int (*nakci)(fsm*, u_char*, int); /* NAK our Configuration Information */
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int (*rejci)(fsm*, u_char*, int); /* Reject our Configuration Information */
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int (*reqci)(fsm*, u_char*, int*, int); /* Request peer's Configuration Information */
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void (*up)(fsm*); /* Called when fsm reaches LS_OPENED state */
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void (*down)(fsm*); /* Called when fsm leaves LS_OPENED state */
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void (*starting)(fsm*); /* Called when we want the lower layer */
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void (*finished)(fsm*); /* Called when we don't want the lower layer */
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void (*protreject)(int); /* Called when Protocol-Reject received */
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void (*retransmit)(fsm*); /* Retransmission is necessary */
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int (*extcode)(fsm*, int, u_char, u_char*, int); /* Called when unknown code received */
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char *proto_name; /* String name for protocol (for messages) */
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} fsm_callbacks;
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@@ -162,7 +147,7 @@ typedef struct fsm_callbacks {
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/*
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* Variables
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*/
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extern int peer_mru[]; /* currently negotiated peer MRU (per unit) */
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extern int peer_mru[]; /* currently negotiated peer MRU (per unit) */
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/*****************************************************************************
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