Bonjour - Bonjour/Zerconf library

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Dirk-Willem van Gulik (NXP/mbed) / Mbed 2 deprecated Bonjour

Bonjour/Zerconf library

lwip/netif/ppp/fsm.h@5:8e53abda9900, 2010-08-14 (annotated)

Committer:: dirkx
Date:: Sat Aug 14 15:54:31 2010 +0000
Revision:: 5:8e53abda9900
Parent:: 0:355018f44c9f

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User	Revision	Line number	New contents of line
dirkx	0:355018f44c9f	1	/*****************************************************************************
dirkx	0:355018f44c9f	2	* fsm.h - Network Control Protocol Finite State Machine header file.
dirkx	0:355018f44c9f	3	*
dirkx	0:355018f44c9f	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
dirkx	0:355018f44c9f	5	* Copyright (c) 1997 Global Election Systems Inc.
dirkx	0:355018f44c9f	6	*
dirkx	0:355018f44c9f	7	* The authors hereby grant permission to use, copy, modify, distribute,
dirkx	0:355018f44c9f	8	* and license this software and its documentation for any purpose, provided
dirkx	0:355018f44c9f	9	* that existing copyright notices are retained in all copies and that this
dirkx	0:355018f44c9f	10	* notice and the following disclaimer are included verbatim in any
dirkx	0:355018f44c9f	11	* distributions. No written agreement, license, or royalty fee is required
dirkx	0:355018f44c9f	12	* for any of the authorized uses.
dirkx	0:355018f44c9f	13	*
dirkx	0:355018f44c9f	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
dirkx	0:355018f44c9f	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
dirkx	0:355018f44c9f	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
dirkx	0:355018f44c9f	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
dirkx	0:355018f44c9f	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
dirkx	0:355018f44c9f	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
dirkx	0:355018f44c9f	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
dirkx	0:355018f44c9f	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
dirkx	0:355018f44c9f	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
dirkx	0:355018f44c9f	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
dirkx	0:355018f44c9f	24	*
dirkx	0:355018f44c9f	25	******************************************************************************
dirkx	0:355018f44c9f	26	* REVISION HISTORY
dirkx	0:355018f44c9f	27	*
dirkx	0:355018f44c9f	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
dirkx	0:355018f44c9f	29	* Ported to lwIP.
dirkx	0:355018f44c9f	30	* 97-11-05 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
dirkx	0:355018f44c9f	31	* Original based on BSD code.
dirkx	0:355018f44c9f	32	*****************************************************************************/
dirkx	0:355018f44c9f	33	/*
dirkx	0:355018f44c9f	34	* fsm.h - {Link, IP} Control Protocol Finite State Machine definitions.
dirkx	0:355018f44c9f	35	*
dirkx	0:355018f44c9f	36	* Copyright (c) 1989 Carnegie Mellon University.
dirkx	0:355018f44c9f	37	* All rights reserved.
dirkx	0:355018f44c9f	38	*
dirkx	0:355018f44c9f	39	* Redistribution and use in source and binary forms are permitted
dirkx	0:355018f44c9f	40	* provided that the above copyright notice and this paragraph are
dirkx	0:355018f44c9f	41	* duplicated in all such forms and that any documentation,
dirkx	0:355018f44c9f	42	* advertising materials, and other materials related to such
dirkx	0:355018f44c9f	43	* distribution and use acknowledge that the software was developed
dirkx	0:355018f44c9f	44	* by Carnegie Mellon University. The name of the
dirkx	0:355018f44c9f	45	* University may not be used to endorse or promote products derived
dirkx	0:355018f44c9f	46	* from this software without specific prior written permission.
dirkx	0:355018f44c9f	47	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
dirkx	0:355018f44c9f	48	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
dirkx	0:355018f44c9f	49	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
dirkx	0:355018f44c9f	50	*
dirkx	0:355018f44c9f	51	* $Id: fsm.h,v 1.5 2009/12/31 17:08:08 goldsimon Exp $
dirkx	0:355018f44c9f	52	*/
dirkx	0:355018f44c9f	53
dirkx	0:355018f44c9f	54	#ifndef FSM_H
dirkx	0:355018f44c9f	55	#define FSM_H
dirkx	0:355018f44c9f	56
dirkx	0:355018f44c9f	57	/*
dirkx	0:355018f44c9f	58	* LCP Packet header = Code, id, length.
dirkx	0:355018f44c9f	59	*/
dirkx	0:355018f44c9f	60	#define HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
dirkx	0:355018f44c9f	61
dirkx	0:355018f44c9f	62
dirkx	0:355018f44c9f	63	/*
dirkx	0:355018f44c9f	64	* CP (LCP, IPCP, etc.) codes.
dirkx	0:355018f44c9f	65	*/
dirkx	0:355018f44c9f	66	#define CONFREQ 1 /* Configuration Request */
dirkx	0:355018f44c9f	67	#define CONFACK 2 /* Configuration Ack */
dirkx	0:355018f44c9f	68	#define CONFNAK 3 /* Configuration Nak */
dirkx	0:355018f44c9f	69	#define CONFREJ 4 /* Configuration Reject */
dirkx	0:355018f44c9f	70	#define TERMREQ 5 /* Termination Request */
dirkx	0:355018f44c9f	71	#define TERMACK 6 /* Termination Ack */
dirkx	0:355018f44c9f	72	#define CODEREJ 7 /* Code Reject */
dirkx	0:355018f44c9f	73
dirkx	0:355018f44c9f	74
dirkx	0:355018f44c9f	75	/*
dirkx	0:355018f44c9f	76	* Each FSM is described by an fsm structure and fsm callbacks.
dirkx	0:355018f44c9f	77	*/
dirkx	0:355018f44c9f	78	typedef struct fsm {
dirkx	0:355018f44c9f	79	int unit; /* Interface unit number */
dirkx	0:355018f44c9f	80	u_short protocol; /* Data Link Layer Protocol field value */
dirkx	0:355018f44c9f	81	int state; /* State */
dirkx	0:355018f44c9f	82	int flags; /* Contains option bits */
dirkx	0:355018f44c9f	83	u_char id; /* Current id */
dirkx	0:355018f44c9f	84	u_char reqid; /* Current request id */
dirkx	0:355018f44c9f	85	u_char seen_ack; /* Have received valid Ack/Nak/Rej to Req */
dirkx	0:355018f44c9f	86	int timeouttime; /* Timeout time in milliseconds */
dirkx	0:355018f44c9f	87	int maxconfreqtransmits; /* Maximum Configure-Request transmissions */
dirkx	0:355018f44c9f	88	int retransmits; /* Number of retransmissions left */
dirkx	0:355018f44c9f	89	int maxtermtransmits; /* Maximum Terminate-Request transmissions */
dirkx	0:355018f44c9f	90	int nakloops; /* Number of nak loops since last ack */
dirkx	0:355018f44c9f	91	int maxnakloops; /* Maximum number of nak loops tolerated */
dirkx	0:355018f44c9f	92	struct fsm_callbacks* callbacks; /* Callback routines */
dirkx	0:355018f44c9f	93	char* term_reason; /* Reason for closing protocol */
dirkx	0:355018f44c9f	94	int term_reason_len; /* Length of term_reason */
dirkx	0:355018f44c9f	95	} fsm;
dirkx	0:355018f44c9f	96
dirkx	0:355018f44c9f	97
dirkx	0:355018f44c9f	98	typedef struct fsm_callbacks {
dirkx	0:355018f44c9f	99	void (resetci)(fsm); /* Reset our Configuration Information */
dirkx	0:355018f44c9f	100	int (cilen)(fsm); /* Length of our Configuration Information */
dirkx	0:355018f44c9f	101	void (addci)(fsm, u_char, int); /* Add our Configuration Information */
dirkx	0:355018f44c9f	102	int (ackci)(fsm, u_char, int); / ACK our Configuration Information */
dirkx	0:355018f44c9f	103	int (nakci)(fsm, u_char, int); / NAK our Configuration Information */
dirkx	0:355018f44c9f	104	int (rejci)(fsm, u_char, int); / Reject our Configuration Information */
dirkx	0:355018f44c9f	105	int (reqci)(fsm, u_char, int, int); /* Request peer's Configuration Information */
dirkx	0:355018f44c9f	106	void (up)(fsm); /* Called when fsm reaches LS_OPENED state */
dirkx	0:355018f44c9f	107	void (down)(fsm); /* Called when fsm leaves LS_OPENED state */
dirkx	0:355018f44c9f	108	void (starting)(fsm); /* Called when we want the lower layer */
dirkx	0:355018f44c9f	109	void (finished)(fsm); /* Called when we don't want the lower layer */
dirkx	0:355018f44c9f	110	void (protreject)(int); / Called when Protocol-Reject received */
dirkx	0:355018f44c9f	111	void (retransmit)(fsm); /* Retransmission is necessary */
dirkx	0:355018f44c9f	112	int (extcode)(fsm, int, u_char, u_char, int); / Called when unknown code received */
dirkx	0:355018f44c9f	113	char proto_name; / String name for protocol (for messages) */
dirkx	0:355018f44c9f	114	} fsm_callbacks;
dirkx	0:355018f44c9f	115
dirkx	0:355018f44c9f	116
dirkx	0:355018f44c9f	117	/*
dirkx	0:355018f44c9f	118	* Link states.
dirkx	0:355018f44c9f	119	*/
dirkx	0:355018f44c9f	120	#define LS_INITIAL 0 /* Down, hasn't been opened */
dirkx	0:355018f44c9f	121	#define LS_STARTING 1 /* Down, been opened */
dirkx	0:355018f44c9f	122	#define LS_CLOSED 2 /* Up, hasn't been opened */
dirkx	0:355018f44c9f	123	#define LS_STOPPED 3 /* Open, waiting for down event */
dirkx	0:355018f44c9f	124	#define LS_CLOSING 4 /* Terminating the connection, not open */
dirkx	0:355018f44c9f	125	#define LS_STOPPING 5 /* Terminating, but open */
dirkx	0:355018f44c9f	126	#define LS_REQSENT 6 /* We've sent a Config Request */
dirkx	0:355018f44c9f	127	#define LS_ACKRCVD 7 /* We've received a Config Ack */
dirkx	0:355018f44c9f	128	#define LS_ACKSENT 8 /* We've sent a Config Ack */
dirkx	0:355018f44c9f	129	#define LS_OPENED 9 /* Connection available */
dirkx	0:355018f44c9f	130
dirkx	0:355018f44c9f	131	/*
dirkx	0:355018f44c9f	132	* Flags - indicate options controlling FSM operation
dirkx	0:355018f44c9f	133	*/
dirkx	0:355018f44c9f	134	#define OPT_PASSIVE 1 /* Don't die if we don't get a response */
dirkx	0:355018f44c9f	135	#define OPT_RESTART 2 /* Treat 2nd OPEN as DOWN, UP */
dirkx	0:355018f44c9f	136	#define OPT_SILENT 4 /* Wait for peer to speak first */
dirkx	0:355018f44c9f	137
dirkx	0:355018f44c9f	138
dirkx	0:355018f44c9f	139	/*
dirkx	0:355018f44c9f	140	* Prototypes
dirkx	0:355018f44c9f	141	*/
dirkx	0:355018f44c9f	142	void fsm_init (fsm*);
dirkx	0:355018f44c9f	143	void fsm_lowerup (fsm*);
dirkx	0:355018f44c9f	144	void fsm_lowerdown (fsm*);
dirkx	0:355018f44c9f	145	void fsm_open (fsm*);
dirkx	0:355018f44c9f	146	void fsm_close (fsm, char);
dirkx	0:355018f44c9f	147	void fsm_input (fsm, u_char, int);
dirkx	0:355018f44c9f	148	void fsm_protreject (fsm*);
dirkx	0:355018f44c9f	149	void fsm_sdata (fsm, u_char, u_char, u_char, int);
dirkx	0:355018f44c9f	150
dirkx	0:355018f44c9f	151
dirkx	0:355018f44c9f	152	/*
dirkx	0:355018f44c9f	153	* Variables
dirkx	0:355018f44c9f	154	*/
dirkx	0:355018f44c9f	155	extern int peer_mru[]; /* currently negotiated peer MRU (per unit) */
dirkx	0:355018f44c9f	156
dirkx	0:355018f44c9f	157	#endif /* FSM_H */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	21 Jul 2010
Imports:	99
Forks:	0
Commits:	6
Dependents:	0
Dependencies:	1
Followers:	8

lwip/netif/ppp/fsm.h@5:8e53abda9900, 2010-08-14 (annotated)

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