XBeeWiFi_common - EthernetNetIf Compatibility.

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EthernetNetIf Compatibility.

Dependents: XBeeWiFi_SPI_example

Fork of NetServicesSource by Donatien Garnier

lwip/netif/ppp/ppp.c@0:632c9925f013, 2010-06-11 (annotated)

Committer:: donatien
Date:: Fri Jun 11 16:05:15 2010 +0000
Revision:: 0:632c9925f013
Child:: 4:fd826cad83c0

Who changed what in which revision?

User	Revision	Line number	New contents of line
donatien	0:632c9925f013	1	/*****************************************************************************
donatien	0:632c9925f013	2	* ppp.c - Network Point to Point Protocol program file.
donatien	0:632c9925f013	3	*
donatien	0:632c9925f013	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
donatien	0:632c9925f013	5	* portions Copyright (c) 1997 by Global Election Systems Inc.
donatien	0:632c9925f013	6	*
donatien	0:632c9925f013	7	* The authors hereby grant permission to use, copy, modify, distribute,
donatien	0:632c9925f013	8	* and license this software and its documentation for any purpose, provided
donatien	0:632c9925f013	9	* that existing copyright notices are retained in all copies and that this
donatien	0:632c9925f013	10	* notice and the following disclaimer are included verbatim in any
donatien	0:632c9925f013	11	* distributions. No written agreement, license, or royalty fee is required
donatien	0:632c9925f013	12	* for any of the authorized uses.
donatien	0:632c9925f013	13	*
donatien	0:632c9925f013	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
donatien	0:632c9925f013	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
donatien	0:632c9925f013	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
donatien	0:632c9925f013	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
donatien	0:632c9925f013	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
donatien	0:632c9925f013	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
donatien	0:632c9925f013	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
donatien	0:632c9925f013	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
donatien	0:632c9925f013	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
donatien	0:632c9925f013	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
donatien	0:632c9925f013	24	*
donatien	0:632c9925f013	25	******************************************************************************
donatien	0:632c9925f013	26	* REVISION HISTORY
donatien	0:632c9925f013	27	*
donatien	0:632c9925f013	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
donatien	0:632c9925f013	29	* Ported to lwIP.
donatien	0:632c9925f013	30	* 97-11-05 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
donatien	0:632c9925f013	31	* Original.
donatien	0:632c9925f013	32	*****************************************************************************/
donatien	0:632c9925f013	33
donatien	0:632c9925f013	34	/*
donatien	0:632c9925f013	35	* ppp_defs.h - PPP definitions.
donatien	0:632c9925f013	36	*
donatien	0:632c9925f013	37	* if_pppvar.h - private structures and declarations for PPP.
donatien	0:632c9925f013	38	*
donatien	0:632c9925f013	39	* Copyright (c) 1994 The Australian National University.
donatien	0:632c9925f013	40	* All rights reserved.
donatien	0:632c9925f013	41	*
donatien	0:632c9925f013	42	* Permission to use, copy, modify, and distribute this software and its
donatien	0:632c9925f013	43	* documentation is hereby granted, provided that the above copyright
donatien	0:632c9925f013	44	* notice appears in all copies. This software is provided without any
donatien	0:632c9925f013	45	* warranty, express or implied. The Australian National University
donatien	0:632c9925f013	46	* makes no representations about the suitability of this software for
donatien	0:632c9925f013	47	* any purpose.
donatien	0:632c9925f013	48	*
donatien	0:632c9925f013	49	* IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
donatien	0:632c9925f013	50	* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
donatien	0:632c9925f013	51	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
donatien	0:632c9925f013	52	* THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
donatien	0:632c9925f013	53	* OF SUCH DAMAGE.
donatien	0:632c9925f013	54	*
donatien	0:632c9925f013	55	* THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
donatien	0:632c9925f013	56	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
donatien	0:632c9925f013	57	* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
donatien	0:632c9925f013	58	* ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
donatien	0:632c9925f013	59	* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
donatien	0:632c9925f013	60	* OR MODIFICATIONS.
donatien	0:632c9925f013	61	*/
donatien	0:632c9925f013	62
donatien	0:632c9925f013	63	/*
donatien	0:632c9925f013	64	* if_ppp.h - Point-to-Point Protocol definitions.
donatien	0:632c9925f013	65	*
donatien	0:632c9925f013	66	* Copyright (c) 1989 Carnegie Mellon University.
donatien	0:632c9925f013	67	* All rights reserved.
donatien	0:632c9925f013	68	*
donatien	0:632c9925f013	69	* Redistribution and use in source and binary forms are permitted
donatien	0:632c9925f013	70	* provided that the above copyright notice and this paragraph are
donatien	0:632c9925f013	71	* duplicated in all such forms and that any documentation,
donatien	0:632c9925f013	72	* advertising materials, and other materials related to such
donatien	0:632c9925f013	73	* distribution and use acknowledge that the software was developed
donatien	0:632c9925f013	74	* by Carnegie Mellon University. The name of the
donatien	0:632c9925f013	75	* University may not be used to endorse or promote products derived
donatien	0:632c9925f013	76	* from this software without specific prior written permission.
donatien	0:632c9925f013	77	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
donatien	0:632c9925f013	78	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
donatien	0:632c9925f013	79	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
donatien	0:632c9925f013	80	*/
donatien	0:632c9925f013	81
donatien	0:632c9925f013	82	#include "lwip/opt.h"
donatien	0:632c9925f013	83
donatien	0:632c9925f013	84	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
donatien	0:632c9925f013	85
donatien	0:632c9925f013	86	#include "lwip/ip.h" /* for ip_input() */
donatien	0:632c9925f013	87
donatien	0:632c9925f013	88	#include "ppp.h"
donatien	0:632c9925f013	89	#include "pppdebug.h"
donatien	0:632c9925f013	90
donatien	0:632c9925f013	91	#include "randm.h"
donatien	0:632c9925f013	92	#include "fsm.h"
donatien	0:632c9925f013	93	#if PAP_SUPPORT
donatien	0:632c9925f013	94	#include "pap.h"
donatien	0:632c9925f013	95	#endif /* PAP_SUPPORT */
donatien	0:632c9925f013	96	#if CHAP_SUPPORT
donatien	0:632c9925f013	97	#include "chap.h"
donatien	0:632c9925f013	98	#endif /* CHAP_SUPPORT */
donatien	0:632c9925f013	99	#include "ipcp.h"
donatien	0:632c9925f013	100	#include "lcp.h"
donatien	0:632c9925f013	101	#include "magic.h"
donatien	0:632c9925f013	102	#include "auth.h"
donatien	0:632c9925f013	103	#if VJ_SUPPORT
donatien	0:632c9925f013	104	#include "vj.h"
donatien	0:632c9925f013	105	#endif /* VJ_SUPPORT */
donatien	0:632c9925f013	106	#if PPPOE_SUPPORT
donatien	0:632c9925f013	107	#include "netif/ppp_oe.h"
donatien	0:632c9925f013	108	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	109
donatien	0:632c9925f013	110	#include "lwip/tcpip.h"
donatien	0:632c9925f013	111	#include "lwip/api.h"
donatien	0:632c9925f013	112	#include "lwip/snmp.h"
donatien	0:632c9925f013	113
donatien	0:632c9925f013	114	#include <string.h>
donatien	0:632c9925f013	115
donatien	0:632c9925f013	116	/*************************/
donatien	0:632c9925f013	117	/* LOCAL DEFINITIONS */
donatien	0:632c9925f013	118	/*************************/
donatien	0:632c9925f013	119
donatien	0:632c9925f013	120	/** PPP_INPROC_MULTITHREADED==1 call pppInput using tcpip_callback().
donatien	0:632c9925f013	121	* Set this to 0 if pppInProc is called inside tcpip_thread or with NO_SYS==1.
donatien	0:632c9925f013	122	* Default is 1 for NO_SYS==0 (multithreaded) and 0 for NO_SYS==1 (single-threaded).
donatien	0:632c9925f013	123	*/
donatien	0:632c9925f013	124	#ifndef PPP_INPROC_MULTITHREADED
donatien	0:632c9925f013	125	#define PPP_INPROC_MULTITHREADED (NO_SYS==0)
donatien	0:632c9925f013	126	#endif
donatien	0:632c9925f013	127
donatien	0:632c9925f013	128	/** PPP_INPROC_OWNTHREAD==1: start a dedicated RX thread per PPP session.
donatien	0:632c9925f013	129	* Default is 0: call pppos_input() for received raw characters, charcater
donatien	0:632c9925f013	130	* reception is up to the port */
donatien	0:632c9925f013	131	#ifndef PPP_INPROC_OWNTHREAD
donatien	0:632c9925f013	132	#define PPP_INPROC_OWNTHREAD PPP_INPROC_MULTITHREADED
donatien	0:632c9925f013	133	#endif
donatien	0:632c9925f013	134
donatien	0:632c9925f013	135	#if PPP_INPROC_OWNTHREAD && !PPP_INPROC_MULTITHREADED
donatien	0:632c9925f013	136	#error "PPP_INPROC_OWNTHREAD needs PPP_INPROC_MULTITHREADED==1"
donatien	0:632c9925f013	137	#endif
donatien	0:632c9925f013	138
donatien	0:632c9925f013	139	/*
donatien	0:632c9925f013	140	* The basic PPP frame.
donatien	0:632c9925f013	141	*/
donatien	0:632c9925f013	142	#define PPP_ADDRESS(p) (((u_char *)(p))[0])
donatien	0:632c9925f013	143	#define PPP_CONTROL(p) (((u_char *)(p))[1])
donatien	0:632c9925f013	144	#define PPP_PROTOCOL(p) ((((u_char )(p))[2] << 8) + ((u_char )(p))[3])
donatien	0:632c9925f013	145
donatien	0:632c9925f013	146	/* PPP packet parser states. Current state indicates operation yet to be
donatien	0:632c9925f013	147	* completed. */
donatien	0:632c9925f013	148	typedef enum {
donatien	0:632c9925f013	149	PDIDLE = 0, /* Idle state - waiting. */
donatien	0:632c9925f013	150	PDSTART, /* Process start flag. */
donatien	0:632c9925f013	151	PDADDRESS, /* Process address field. */
donatien	0:632c9925f013	152	PDCONTROL, /* Process control field. */
donatien	0:632c9925f013	153	PDPROTOCOL1, /* Process protocol field 1. */
donatien	0:632c9925f013	154	PDPROTOCOL2, /* Process protocol field 2. */
donatien	0:632c9925f013	155	PDDATA /* Process data byte. */
donatien	0:632c9925f013	156	} PPPDevStates;
donatien	0:632c9925f013	157
donatien	0:632c9925f013	158	#define ESCAPE_P(accm, c) ((accm)[(c) >> 3] & pppACCMMask[c & 0x07])
donatien	0:632c9925f013	159
donatien	0:632c9925f013	160	/************************/
donatien	0:632c9925f013	161	/* LOCAL DATA TYPES */
donatien	0:632c9925f013	162	/************************/
donatien	0:632c9925f013	163
donatien	0:632c9925f013	164	/** RX buffer size: this may be configured smaller! */
donatien	0:632c9925f013	165	#ifndef PPPOS_RX_BUFSIZE
donatien	0:632c9925f013	166	#define PPPOS_RX_BUFSIZE (PPP_MRU + PPP_HDRLEN)
donatien	0:632c9925f013	167	#endif
donatien	0:632c9925f013	168
donatien	0:632c9925f013	169	typedef struct PPPControlRx_s {
donatien	0:632c9925f013	170	/** unit number / ppp descriptor */
donatien	0:632c9925f013	171	int pd;
donatien	0:632c9925f013	172	/** the rx file descriptor */
donatien	0:632c9925f013	173	sio_fd_t fd;
donatien	0:632c9925f013	174	/** receive buffer - encoded data is stored here */
donatien	0:632c9925f013	175	u_char rxbuf[PPPOS_RX_BUFSIZE];
donatien	0:632c9925f013	176
donatien	0:632c9925f013	177	/* The input packet. */
donatien	0:632c9925f013	178	struct pbuf inHead, inTail;
donatien	0:632c9925f013	179
donatien	0:632c9925f013	180	#if PPPOS_SUPPORT
donatien	0:632c9925f013	181	u16_t inProtocol; /* The input protocol code. */
donatien	0:632c9925f013	182	u16_t inFCS; /* Input Frame Check Sequence value. */
donatien	0:632c9925f013	183	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	184	PPPDevStates inState; /* The input process state. */
donatien	0:632c9925f013	185	char inEscaped; /* Escape next character. */
donatien	0:632c9925f013	186	ext_accm inACCM; /* Async-Ctl-Char-Map for input. */
donatien	0:632c9925f013	187	} PPPControlRx;
donatien	0:632c9925f013	188
donatien	0:632c9925f013	189	/*
donatien	0:632c9925f013	190	* PPP interface control block.
donatien	0:632c9925f013	191	*/
donatien	0:632c9925f013	192	typedef struct PPPControl_s {
donatien	0:632c9925f013	193	PPPControlRx rx;
donatien	0:632c9925f013	194	char openFlag; /* True when in use. */
donatien	0:632c9925f013	195	#if PPPOE_SUPPORT
donatien	0:632c9925f013	196	struct netif *ethif;
donatien	0:632c9925f013	197	struct pppoe_softc *pppoe_sc;
donatien	0:632c9925f013	198	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	199	int if_up; /* True when the interface is up. */
donatien	0:632c9925f013	200	int errCode; /* Code indicating why interface is down. */
donatien	0:632c9925f013	201	#if PPPOS_SUPPORT
donatien	0:632c9925f013	202	sio_fd_t fd; /* File device ID of port. */
donatien	0:632c9925f013	203	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	204	u16_t mtu; /* Peer's mru */
donatien	0:632c9925f013	205	int pcomp; /* Does peer accept protocol compression? */
donatien	0:632c9925f013	206	int accomp; /* Does peer accept addr/ctl compression? */
donatien	0:632c9925f013	207	u_long lastXMit; /* Time of last transmission. */
donatien	0:632c9925f013	208	ext_accm outACCM; /* Async-Ctl-Char-Map for output. */
donatien	0:632c9925f013	209	#if PPPOS_SUPPORT && VJ_SUPPORT
donatien	0:632c9925f013	210	int vjEnabled; /* Flag indicating VJ compression enabled. */
donatien	0:632c9925f013	211	struct vjcompress vjComp; /* Van Jacobson compression header. */
donatien	0:632c9925f013	212	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	213
donatien	0:632c9925f013	214	struct netif netif;
donatien	0:632c9925f013	215
donatien	0:632c9925f013	216	struct ppp_addrs addrs;
donatien	0:632c9925f013	217
donatien	0:632c9925f013	218	void (linkStatusCB)(void ctx, int errCode, void *arg);
donatien	0:632c9925f013	219	void *linkStatusCtx;
donatien	0:632c9925f013	220
donatien	0:632c9925f013	221	} PPPControl;
donatien	0:632c9925f013	222
donatien	0:632c9925f013	223
donatien	0:632c9925f013	224	/*
donatien	0:632c9925f013	225	* Ioctl definitions.
donatien	0:632c9925f013	226	*/
donatien	0:632c9925f013	227
donatien	0:632c9925f013	228	struct npioctl {
donatien	0:632c9925f013	229	int protocol; /* PPP procotol, e.g. PPP_IP */
donatien	0:632c9925f013	230	enum NPmode mode;
donatien	0:632c9925f013	231	};
donatien	0:632c9925f013	232
donatien	0:632c9925f013	233
donatien	0:632c9925f013	234
donatien	0:632c9925f013	235	/***********************************/
donatien	0:632c9925f013	236	/* LOCAL FUNCTION DECLARATIONS */
donatien	0:632c9925f013	237	/***********************************/
donatien	0:632c9925f013	238	#if PPPOS_SUPPORT
donatien	0:632c9925f013	239	#if PPP_INPROC_OWNTHREAD
donatien	0:632c9925f013	240	static void pppInputThread(void *arg);
donatien	0:632c9925f013	241	#endif /* PPP_INPROC_OWNTHREAD */
donatien	0:632c9925f013	242	static void pppDrop(PPPControlRx *pcrx);
donatien	0:632c9925f013	243	static void pppInProc(PPPControlRx pcrx, u_char s, int l);
donatien	0:632c9925f013	244	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	245
donatien	0:632c9925f013	246
donatien	0:632c9925f013	247	/******************************/
donatien	0:632c9925f013	248	/* PUBLIC DATA STRUCTURES */
donatien	0:632c9925f013	249	/******************************/
donatien	0:632c9925f013	250	u_long subnetMask;
donatien	0:632c9925f013	251
donatien	0:632c9925f013	252	static PPPControl pppControl[NUM_PPP] MEM_POSITION; /* The PPP interface control blocks. */
donatien	0:632c9925f013	253
donatien	0:632c9925f013	254	/*
donatien	0:632c9925f013	255	* PPP Data Link Layer "protocol" table.
donatien	0:632c9925f013	256	* One entry per supported protocol.
donatien	0:632c9925f013	257	* The last entry must be NULL.
donatien	0:632c9925f013	258	*/
donatien	0:632c9925f013	259	struct protent *ppp_protocols[] = {
donatien	0:632c9925f013	260	&lcp_protent,
donatien	0:632c9925f013	261	#if PAP_SUPPORT
donatien	0:632c9925f013	262	&pap_protent,
donatien	0:632c9925f013	263	#endif /* PAP_SUPPORT */
donatien	0:632c9925f013	264	#if CHAP_SUPPORT
donatien	0:632c9925f013	265	&chap_protent,
donatien	0:632c9925f013	266	#endif /* CHAP_SUPPORT */
donatien	0:632c9925f013	267	#if CBCP_SUPPORT
donatien	0:632c9925f013	268	&cbcp_protent,
donatien	0:632c9925f013	269	#endif /* CBCP_SUPPORT */
donatien	0:632c9925f013	270	&ipcp_protent,
donatien	0:632c9925f013	271	#if CCP_SUPPORT
donatien	0:632c9925f013	272	&ccp_protent,
donatien	0:632c9925f013	273	#endif /* CCP_SUPPORT */
donatien	0:632c9925f013	274	NULL
donatien	0:632c9925f013	275	};
donatien	0:632c9925f013	276
donatien	0:632c9925f013	277
donatien	0:632c9925f013	278	/*
donatien	0:632c9925f013	279	* Buffers for outgoing packets. This must be accessed only from the appropriate
donatien	0:632c9925f013	280	* PPP task so that it doesn't need to be protected to avoid collisions.
donatien	0:632c9925f013	281	*/
donatien	0:632c9925f013	282	u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN] MEM_POSITION;
donatien	0:632c9925f013	283
donatien	0:632c9925f013	284
donatien	0:632c9925f013	285	/*****************************/
donatien	0:632c9925f013	286	/* LOCAL DATA STRUCTURES */
donatien	0:632c9925f013	287	/*****************************/
donatien	0:632c9925f013	288
donatien	0:632c9925f013	289	#if PPPOS_SUPPORT
donatien	0:632c9925f013	290	/*
donatien	0:632c9925f013	291	* FCS lookup table as calculated by genfcstab.
donatien	0:632c9925f013	292	* @todo: smaller, slower implementation for lower memory footprint?
donatien	0:632c9925f013	293	*/
donatien	0:632c9925f013	294	static const u_short fcstab[256] = {
donatien	0:632c9925f013	295	0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
donatien	0:632c9925f013	296	0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
donatien	0:632c9925f013	297	0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
donatien	0:632c9925f013	298	0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
donatien	0:632c9925f013	299	0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
donatien	0:632c9925f013	300	0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
donatien	0:632c9925f013	301	0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
donatien	0:632c9925f013	302	0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
donatien	0:632c9925f013	303	0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
donatien	0:632c9925f013	304	0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
donatien	0:632c9925f013	305	0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
donatien	0:632c9925f013	306	0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
donatien	0:632c9925f013	307	0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
donatien	0:632c9925f013	308	0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
donatien	0:632c9925f013	309	0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
donatien	0:632c9925f013	310	0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
donatien	0:632c9925f013	311	0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
donatien	0:632c9925f013	312	0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
donatien	0:632c9925f013	313	0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
donatien	0:632c9925f013	314	0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
donatien	0:632c9925f013	315	0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
donatien	0:632c9925f013	316	0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
donatien	0:632c9925f013	317	0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
donatien	0:632c9925f013	318	0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
donatien	0:632c9925f013	319	0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
donatien	0:632c9925f013	320	0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
donatien	0:632c9925f013	321	0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
donatien	0:632c9925f013	322	0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
donatien	0:632c9925f013	323	0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
donatien	0:632c9925f013	324	0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
donatien	0:632c9925f013	325	0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
donatien	0:632c9925f013	326	0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
donatien	0:632c9925f013	327	};
donatien	0:632c9925f013	328
donatien	0:632c9925f013	329	/* PPP's Asynchronous-Control-Character-Map. The mask array is used
donatien	0:632c9925f013	330	* to select the specific bit for a character. */
donatien	0:632c9925f013	331	static u_char pppACCMMask[] = {
donatien	0:632c9925f013	332	0x01,
donatien	0:632c9925f013	333	0x02,
donatien	0:632c9925f013	334	0x04,
donatien	0:632c9925f013	335	0x08,
donatien	0:632c9925f013	336	0x10,
donatien	0:632c9925f013	337	0x20,
donatien	0:632c9925f013	338	0x40,
donatien	0:632c9925f013	339	0x80
donatien	0:632c9925f013	340	};
donatien	0:632c9925f013	341
donatien	0:632c9925f013	342	/** Wake up the task blocked in reading from serial line (if any) */
donatien	0:632c9925f013	343	static void
donatien	0:632c9925f013	344	pppRecvWakeup(int pd)
donatien	0:632c9925f013	345	{
donatien	0:632c9925f013	346	PPPDEBUG(LOG_DEBUG, ("pppRecvWakeup: unit %d\n", pd));
donatien	0:632c9925f013	347	sio_read_abort(pppControl[pd].fd);
donatien	0:632c9925f013	348	}
donatien	0:632c9925f013	349	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	350
donatien	0:632c9925f013	351	void
donatien	0:632c9925f013	352	pppLinkTerminated(int pd)
donatien	0:632c9925f013	353	{
donatien	0:632c9925f013	354	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d\n", pd));
donatien	0:632c9925f013	355
donatien	0:632c9925f013	356	#if PPPOE_SUPPORT
donatien	0:632c9925f013	357	if (pppControl[pd].ethif) {
donatien	0:632c9925f013	358	pppoe_disconnect(pppControl[pd].pppoe_sc);
donatien	0:632c9925f013	359	} else
donatien	0:632c9925f013	360	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	361	{
donatien	0:632c9925f013	362	#if PPPOS_SUPPORT
donatien	0:632c9925f013	363	PPPControl* pc;
donatien	0:632c9925f013	364	pppRecvWakeup(pd);
donatien	0:632c9925f013	365	pc = &pppControl[pd];
donatien	0:632c9925f013	366	pppDrop(&pc->rx); /* bug fix #17726 */
donatien	0:632c9925f013	367
donatien	0:632c9925f013	368	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
donatien	0:632c9925f013	369	if (pc->linkStatusCB) {
donatien	0:632c9925f013	370	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
donatien	0:632c9925f013	371	}
donatien	0:632c9925f013	372
donatien	0:632c9925f013	373	pc->openFlag = 0;/**/
donatien	0:632c9925f013	374	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	375	}
donatien	0:632c9925f013	376	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: finished.\n"));
donatien	0:632c9925f013	377	}
donatien	0:632c9925f013	378
donatien	0:632c9925f013	379	void
donatien	0:632c9925f013	380	pppLinkDown(int pd)
donatien	0:632c9925f013	381	{
donatien	0:632c9925f013	382	PPPDEBUG(LOG_DEBUG, ("pppLinkDown: unit %d\n", pd));
donatien	0:632c9925f013	383
donatien	0:632c9925f013	384	#if PPPOE_SUPPORT
donatien	0:632c9925f013	385	if (pppControl[pd].ethif) {
donatien	0:632c9925f013	386	pppoe_disconnect(pppControl[pd].pppoe_sc);
donatien	0:632c9925f013	387	} else
donatien	0:632c9925f013	388	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	389	{
donatien	0:632c9925f013	390	#if PPPOS_SUPPORT
donatien	0:632c9925f013	391	pppRecvWakeup(pd);
donatien	0:632c9925f013	392	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	393	}
donatien	0:632c9925f013	394	}
donatien	0:632c9925f013	395
donatien	0:632c9925f013	396	/** Initiate LCP open request */
donatien	0:632c9925f013	397	static void
donatien	0:632c9925f013	398	pppStart(int pd)
donatien	0:632c9925f013	399	{
donatien	0:632c9925f013	400	PPPDEBUG(LOG_DEBUG, ("pppStart: unit %d\n", pd));
donatien	0:632c9925f013	401	lcp_lowerup(pd);
donatien	0:632c9925f013	402	lcp_open(pd); /* Start protocol */
donatien	0:632c9925f013	403	PPPDEBUG(LOG_DEBUG, ("pppStart: finished\n"));
donatien	0:632c9925f013	404	}
donatien	0:632c9925f013	405
donatien	0:632c9925f013	406	/** LCP close request */
donatien	0:632c9925f013	407	static void
donatien	0:632c9925f013	408	pppStop(int pd)
donatien	0:632c9925f013	409	{
donatien	0:632c9925f013	410	PPPDEBUG(LOG_DEBUG, ("pppStop: unit %d\n", pd));
donatien	0:632c9925f013	411	lcp_close(pd, "User request");
donatien	0:632c9925f013	412	}
donatien	0:632c9925f013	413
donatien	0:632c9925f013	414	/** Called when carrier/link is lost */
donatien	0:632c9925f013	415	static void
donatien	0:632c9925f013	416	pppHup(int pd)
donatien	0:632c9925f013	417	{
donatien	0:632c9925f013	418	PPPDEBUG(LOG_DEBUG, ("pppHupCB: unit %d\n", pd));
donatien	0:632c9925f013	419	lcp_lowerdown(pd);
donatien	0:632c9925f013	420	link_terminated(pd);
donatien	0:632c9925f013	421	}
donatien	0:632c9925f013	422
donatien	0:632c9925f013	423	/***********************************/
donatien	0:632c9925f013	424	/* PUBLIC FUNCTION DEFINITIONS */
donatien	0:632c9925f013	425	/***********************************/
donatien	0:632c9925f013	426	/* Initialize the PPP subsystem. */
donatien	0:632c9925f013	427
donatien	0:632c9925f013	428	struct ppp_settings ppp_settings;
donatien	0:632c9925f013	429
donatien	0:632c9925f013	430	void
donatien	0:632c9925f013	431	pppInit(void)
donatien	0:632c9925f013	432	{
donatien	0:632c9925f013	433	struct protent *protp;
donatien	0:632c9925f013	434	int i, j;
donatien	0:632c9925f013	435
donatien	0:632c9925f013	436	memset(&ppp_settings, 0, sizeof(ppp_settings));
donatien	0:632c9925f013	437	ppp_settings.usepeerdns = 1;
donatien	0:632c9925f013	438	pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
donatien	0:632c9925f013	439
donatien	0:632c9925f013	440	magicInit();
donatien	0:632c9925f013	441
donatien	0:632c9925f013	442	subnetMask = htonl(0xffffff00);
donatien	0:632c9925f013	443
donatien	0:632c9925f013	444	for (i = 0; i < NUM_PPP; i++) {
donatien	0:632c9925f013	445	/* Initialize each protocol to the standard option set. */
donatien	0:632c9925f013	446	for (j = 0; (protp = ppp_protocols[j]) != NULL; ++j) {
donatien	0:632c9925f013	447	(*protp->init)(i);
donatien	0:632c9925f013	448	}
donatien	0:632c9925f013	449	}
donatien	0:632c9925f013	450
donatien	0:632c9925f013	451	#if PPPOE_SUPPORT
donatien	0:632c9925f013	452	pppoe_init();
donatien	0:632c9925f013	453	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	454	}
donatien	0:632c9925f013	455
donatien	0:632c9925f013	456	void
donatien	0:632c9925f013	457	pppSetAuth(enum pppAuthType authType, const char user, const char passwd)
donatien	0:632c9925f013	458	{
donatien	0:632c9925f013	459	switch(authType) {
donatien	0:632c9925f013	460	case PPPAUTHTYPE_NONE:
donatien	0:632c9925f013	461	default:
donatien	0:632c9925f013	462	#ifdef LWIP_PPP_STRICT_PAP_REJECT
donatien	0:632c9925f013	463	ppp_settings.refuse_pap = 1;
donatien	0:632c9925f013	464	#else /* LWIP_PPP_STRICT_PAP_REJECT */
donatien	0:632c9925f013	465	/* some providers request pap and accept an empty login/pw */
donatien	0:632c9925f013	466	ppp_settings.refuse_pap = 0;
donatien	0:632c9925f013	467	#endif /* LWIP_PPP_STRICT_PAP_REJECT */
donatien	0:632c9925f013	468	ppp_settings.refuse_chap = 1;
donatien	0:632c9925f013	469	break;
donatien	0:632c9925f013	470
donatien	0:632c9925f013	471	case PPPAUTHTYPE_ANY:
donatien	0:632c9925f013	472	/* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
donatien	0:632c9925f013	473	* RFC 1994 says:
donatien	0:632c9925f013	474	*
donatien	0:632c9925f013	475	* In practice, within or associated with each PPP server, there is a
donatien	0:632c9925f013	476	* database which associates "user" names with authentication
donatien	0:632c9925f013	477	* information ("secrets"). It is not anticipated that a particular
donatien	0:632c9925f013	478	* named user would be authenticated by multiple methods. This would
donatien	0:632c9925f013	479	* make the user vulnerable to attacks which negotiate the least secure
donatien	0:632c9925f013	480	* method from among a set (such as PAP rather than CHAP). If the same
donatien	0:632c9925f013	481	* secret was used, PAP would reveal the secret to be used later with
donatien	0:632c9925f013	482	* CHAP.
donatien	0:632c9925f013	483	*
donatien	0:632c9925f013	484	* Instead, for each user name there should be an indication of exactly
donatien	0:632c9925f013	485	* one method used to authenticate that user name. If a user needs to
donatien	0:632c9925f013	486	* make use of different authentication methods under different
donatien	0:632c9925f013	487	* circumstances, then distinct user names SHOULD be employed, each of
donatien	0:632c9925f013	488	* which identifies exactly one authentication method.
donatien	0:632c9925f013	489	*
donatien	0:632c9925f013	490	*/
donatien	0:632c9925f013	491	ppp_settings.refuse_pap = 0;
donatien	0:632c9925f013	492	ppp_settings.refuse_chap = 0;
donatien	0:632c9925f013	493	break;
donatien	0:632c9925f013	494
donatien	0:632c9925f013	495	case PPPAUTHTYPE_PAP:
donatien	0:632c9925f013	496	ppp_settings.refuse_pap = 0;
donatien	0:632c9925f013	497	ppp_settings.refuse_chap = 1;
donatien	0:632c9925f013	498	break;
donatien	0:632c9925f013	499
donatien	0:632c9925f013	500	case PPPAUTHTYPE_CHAP:
donatien	0:632c9925f013	501	ppp_settings.refuse_pap = 1;
donatien	0:632c9925f013	502	ppp_settings.refuse_chap = 0;
donatien	0:632c9925f013	503	break;
donatien	0:632c9925f013	504	}
donatien	0:632c9925f013	505
donatien	0:632c9925f013	506	if(user) {
donatien	0:632c9925f013	507	strncpy(ppp_settings.user, user, sizeof(ppp_settings.user)-1);
donatien	0:632c9925f013	508	ppp_settings.user[sizeof(ppp_settings.user)-1] = '\0';
donatien	0:632c9925f013	509	} else {
donatien	0:632c9925f013	510	ppp_settings.user[0] = '\0';
donatien	0:632c9925f013	511	}
donatien	0:632c9925f013	512
donatien	0:632c9925f013	513	if(passwd) {
donatien	0:632c9925f013	514	strncpy(ppp_settings.passwd, passwd, sizeof(ppp_settings.passwd)-1);
donatien	0:632c9925f013	515	ppp_settings.passwd[sizeof(ppp_settings.passwd)-1] = '\0';
donatien	0:632c9925f013	516	} else {
donatien	0:632c9925f013	517	ppp_settings.passwd[0] = '\0';
donatien	0:632c9925f013	518	}
donatien	0:632c9925f013	519	}
donatien	0:632c9925f013	520
donatien	0:632c9925f013	521	#if PPPOS_SUPPORT
donatien	0:632c9925f013	522	/** Open a new PPP connection using the given I/O device.
donatien	0:632c9925f013	523	* This initializes the PPP control block but does not
donatien	0:632c9925f013	524	* attempt to negotiate the LCP session. If this port
donatien	0:632c9925f013	525	* connects to a modem, the modem connection must be
donatien	0:632c9925f013	526	* established before calling this.
donatien	0:632c9925f013	527	* Return a new PPP connection descriptor on success or
donatien	0:632c9925f013	528	* an error code (negative) on failure.
donatien	0:632c9925f013	529	*
donatien	0:632c9925f013	530	* pppOpen() is directly defined to this function.
donatien	0:632c9925f013	531	*/
donatien	0:632c9925f013	532	int
donatien	0:632c9925f013	533	pppOverSerialOpen(sio_fd_t fd, void (linkStatusCB)(void ctx, int errCode, void arg), void linkStatusCtx)
donatien	0:632c9925f013	534	{
donatien	0:632c9925f013	535	PPPControl *pc;
donatien	0:632c9925f013	536	int pd;
donatien	0:632c9925f013	537
donatien	0:632c9925f013	538	if (linkStatusCB == NULL) {
donatien	0:632c9925f013	539	/* PPP is single-threaded: without a callback,
donatien	0:632c9925f013	540	* there is no way to know when the link is up. */
donatien	0:632c9925f013	541	return PPPERR_PARAM;
donatien	0:632c9925f013	542	}
donatien	0:632c9925f013	543
donatien	0:632c9925f013	544	/* Find a free PPP session descriptor. */
donatien	0:632c9925f013	545	for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
donatien	0:632c9925f013	546
donatien	0:632c9925f013	547	if (pd >= NUM_PPP) {
donatien	0:632c9925f013	548	pd = PPPERR_OPEN;
donatien	0:632c9925f013	549	} else {
donatien	0:632c9925f013	550	pc = &pppControl[pd];
donatien	0:632c9925f013	551	/* @todo: is this correct or do I overwrite something? */
donatien	0:632c9925f013	552	memset(pc, 0, sizeof(PPPControl));
donatien	0:632c9925f013	553	pc->rx.pd = pd;
donatien	0:632c9925f013	554	pc->rx.fd = fd;
donatien	0:632c9925f013	555
donatien	0:632c9925f013	556	pc->openFlag = 1;
donatien	0:632c9925f013	557	pc->fd = fd;
donatien	0:632c9925f013	558
donatien	0:632c9925f013	559	#if VJ_SUPPORT
donatien	0:632c9925f013	560	vj_compress_init(&pc->vjComp);
donatien	0:632c9925f013	561	#endif /* VJ_SUPPORT */
donatien	0:632c9925f013	562
donatien	0:632c9925f013	563	/*
donatien	0:632c9925f013	564	* Default the in and out accm so that escape and flag characters
donatien	0:632c9925f013	565	* are always escaped.
donatien	0:632c9925f013	566	*/
donatien	0:632c9925f013	567	pc->rx.inACCM[15] = 0x60; /* no need to protect since RX is not running */
donatien	0:632c9925f013	568	pc->outACCM[15] = 0x60;
donatien	0:632c9925f013	569
donatien	0:632c9925f013	570	pc->linkStatusCB = linkStatusCB;
donatien	0:632c9925f013	571	pc->linkStatusCtx = linkStatusCtx;
donatien	0:632c9925f013	572
donatien	0:632c9925f013	573	/*
donatien	0:632c9925f013	574	* Start the connection and handle incoming events (packet or timeout).
donatien	0:632c9925f013	575	*/
donatien	0:632c9925f013	576	PPPDEBUG(LOG_INFO, ("pppOverSerialOpen: unit %d: Connecting\n", pd));
donatien	0:632c9925f013	577	pppStart(pd);
donatien	0:632c9925f013	578	#if PPP_INPROC_OWNTHREAD
donatien	0:632c9925f013	579	sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)&pc->rx, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO);
donatien	0:632c9925f013	580	#endif
donatien	0:632c9925f013	581	}
donatien	0:632c9925f013	582
donatien	0:632c9925f013	583	return pd;
donatien	0:632c9925f013	584	}
donatien	0:632c9925f013	585	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	586
donatien	0:632c9925f013	587	#if PPPOE_SUPPORT
donatien	0:632c9925f013	588	static void pppOverEthernetLinkStatusCB(int pd, int up);
donatien	0:632c9925f013	589
donatien	0:632c9925f013	590	void
donatien	0:632c9925f013	591	pppOverEthernetClose(int pd)
donatien	0:632c9925f013	592	{
donatien	0:632c9925f013	593	PPPControl* pc = &pppControl[pd];
donatien	0:632c9925f013	594
donatien	0:632c9925f013	595	/* TJL There's no lcp_deinit */
donatien	0:632c9925f013	596	lcp_close(pd, NULL);
donatien	0:632c9925f013	597
donatien	0:632c9925f013	598	pppoe_destroy(&pc->netif);
donatien	0:632c9925f013	599	}
donatien	0:632c9925f013	600
donatien	0:632c9925f013	601	int pppOverEthernetOpen(struct netif ethif, const char service_name, const char concentrator_name, void (linkStatusCB)(void ctx, int errCode, void arg), void *linkStatusCtx)
donatien	0:632c9925f013	602	{
donatien	0:632c9925f013	603	PPPControl *pc;
donatien	0:632c9925f013	604	int pd;
donatien	0:632c9925f013	605
donatien	0:632c9925f013	606	LWIP_UNUSED_ARG(service_name);
donatien	0:632c9925f013	607	LWIP_UNUSED_ARG(concentrator_name);
donatien	0:632c9925f013	608
donatien	0:632c9925f013	609	if (linkStatusCB == NULL) {
donatien	0:632c9925f013	610	/* PPP is single-threaded: without a callback,
donatien	0:632c9925f013	611	* there is no way to know when the link is up. */
donatien	0:632c9925f013	612	return PPPERR_PARAM;
donatien	0:632c9925f013	613	}
donatien	0:632c9925f013	614
donatien	0:632c9925f013	615	/* Find a free PPP session descriptor. Critical region? */
donatien	0:632c9925f013	616	for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
donatien	0:632c9925f013	617	if (pd >= NUM_PPP) {
donatien	0:632c9925f013	618	pd = PPPERR_OPEN;
donatien	0:632c9925f013	619	} else {
donatien	0:632c9925f013	620	pc = &pppControl[pd];
donatien	0:632c9925f013	621	memset(pc, 0, sizeof(PPPControl));
donatien	0:632c9925f013	622	pc->openFlag = 1;
donatien	0:632c9925f013	623	pc->ethif = ethif;
donatien	0:632c9925f013	624
donatien	0:632c9925f013	625	pc->linkStatusCB = linkStatusCB;
donatien	0:632c9925f013	626	pc->linkStatusCtx = linkStatusCtx;
donatien	0:632c9925f013	627
donatien	0:632c9925f013	628	lcp_wantoptions[pd].mru = PPPOE_MAXMTU;
donatien	0:632c9925f013	629	lcp_wantoptions[pd].neg_asyncmap = 0;
donatien	0:632c9925f013	630	lcp_wantoptions[pd].neg_pcompression = 0;
donatien	0:632c9925f013	631	lcp_wantoptions[pd].neg_accompression = 0;
donatien	0:632c9925f013	632
donatien	0:632c9925f013	633	lcp_allowoptions[pd].mru = PPPOE_MAXMTU;
donatien	0:632c9925f013	634	lcp_allowoptions[pd].neg_asyncmap = 0;
donatien	0:632c9925f013	635	lcp_allowoptions[pd].neg_pcompression = 0;
donatien	0:632c9925f013	636	lcp_allowoptions[pd].neg_accompression = 0;
donatien	0:632c9925f013	637
donatien	0:632c9925f013	638	if(pppoe_create(ethif, pd, pppOverEthernetLinkStatusCB, &pc->pppoe_sc) != ERR_OK) {
donatien	0:632c9925f013	639	pc->openFlag = 0;
donatien	0:632c9925f013	640	return PPPERR_OPEN;
donatien	0:632c9925f013	641	}
donatien	0:632c9925f013	642
donatien	0:632c9925f013	643	pppoe_connect(pc->pppoe_sc);
donatien	0:632c9925f013	644	}
donatien	0:632c9925f013	645
donatien	0:632c9925f013	646	return pd;
donatien	0:632c9925f013	647	}
donatien	0:632c9925f013	648	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	649
donatien	0:632c9925f013	650
donatien	0:632c9925f013	651	/* Close a PPP connection and release the descriptor.
donatien	0:632c9925f013	652	* Any outstanding packets in the queues are dropped.
donatien	0:632c9925f013	653	* Return 0 on success, an error code on failure. */
donatien	0:632c9925f013	654	int
donatien	0:632c9925f013	655	pppClose(int pd)
donatien	0:632c9925f013	656	{
donatien	0:632c9925f013	657	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	658	int st = 0;
donatien	0:632c9925f013	659
donatien	0:632c9925f013	660	PPPDEBUG(LOG_DEBUG, ("pppClose() called\n"));
donatien	0:632c9925f013	661
donatien	0:632c9925f013	662	/* Disconnect */
donatien	0:632c9925f013	663	#if PPPOE_SUPPORT
donatien	0:632c9925f013	664	if(pc->ethif) {
donatien	0:632c9925f013	665	PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
donatien	0:632c9925f013	666	pc->errCode = PPPERR_USER;
donatien	0:632c9925f013	667	/* This will leave us at PHASE_DEAD. */
donatien	0:632c9925f013	668	pppStop(pd);
donatien	0:632c9925f013	669	} else
donatien	0:632c9925f013	670	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	671	{
donatien	0:632c9925f013	672	#if PPPOS_SUPPORT
donatien	0:632c9925f013	673	PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
donatien	0:632c9925f013	674	pc->errCode = PPPERR_USER;
donatien	0:632c9925f013	675	/* This will leave us at PHASE_DEAD. */
donatien	0:632c9925f013	676	pppStop(pd);
donatien	0:632c9925f013	677	pppRecvWakeup(pd);
donatien	0:632c9925f013	678	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	679	}
donatien	0:632c9925f013	680
donatien	0:632c9925f013	681	return st;
donatien	0:632c9925f013	682	}
donatien	0:632c9925f013	683
donatien	0:632c9925f013	684	/* This function is called when carrier is lost on the PPP channel. */
donatien	0:632c9925f013	685	void
donatien	0:632c9925f013	686	pppSigHUP(int pd)
donatien	0:632c9925f013	687	{
donatien	0:632c9925f013	688	#if PPPOE_SUPPORT
donatien	0:632c9925f013	689	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	690	if(pc->ethif) {
donatien	0:632c9925f013	691	PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
donatien	0:632c9925f013	692	pppHup(pd);
donatien	0:632c9925f013	693	} else
donatien	0:632c9925f013	694	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	695	{
donatien	0:632c9925f013	696	#if PPPOS_SUPPORT
donatien	0:632c9925f013	697	PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
donatien	0:632c9925f013	698	pppHup(pd);
donatien	0:632c9925f013	699	pppRecvWakeup(pd);
donatien	0:632c9925f013	700	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	701	}
donatien	0:632c9925f013	702	}
donatien	0:632c9925f013	703
donatien	0:632c9925f013	704	#if PPPOS_SUPPORT
donatien	0:632c9925f013	705	static void
donatien	0:632c9925f013	706	nPut(PPPControl pc, struct pbuf nb)
donatien	0:632c9925f013	707	{
donatien	0:632c9925f013	708	struct pbuf *b;
donatien	0:632c9925f013	709	int c = 0;
donatien	0:632c9925f013	710
donatien	0:632c9925f013	711	for(b = nb; b != NULL; b = b->next) {
donatien	0:632c9925f013	712	if((c = sio_write(pc->fd, (u8_t*)b->payload, b->len)) != b->len) {
donatien	0:632c9925f013	713	PPPDEBUG(LOG_WARNING,
donatien	0:632c9925f013	714	("PPP nPut: incomplete sio_write(fd:%d, len:%d, c: 0x%"X8_F") c = %d\n", (size_t)pc->fd, b->len, c, c));
donatien	0:632c9925f013	715	LINK_STATS_INC(link.err);
donatien	0:632c9925f013	716	pc->lastXMit = 0; /* prepend PPP_FLAG to next packet */
donatien	0:632c9925f013	717	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	718	pbuf_free(nb);
donatien	0:632c9925f013	719	return;
donatien	0:632c9925f013	720	}
donatien	0:632c9925f013	721	}
donatien	0:632c9925f013	722
donatien	0:632c9925f013	723	snmp_add_ifoutoctets(&pc->netif, nb->tot_len);
donatien	0:632c9925f013	724	snmp_inc_ifoutucastpkts(&pc->netif);
donatien	0:632c9925f013	725	pbuf_free(nb);
donatien	0:632c9925f013	726	LINK_STATS_INC(link.xmit);
donatien	0:632c9925f013	727	}
donatien	0:632c9925f013	728
donatien	0:632c9925f013	729	/*
donatien	0:632c9925f013	730	* pppAppend - append given character to end of given pbuf. If outACCM
donatien	0:632c9925f013	731	* is not NULL and the character needs to be escaped, do so.
donatien	0:632c9925f013	732	* If pbuf is full, append another.
donatien	0:632c9925f013	733	* Return the current pbuf.
donatien	0:632c9925f013	734	*/
donatien	0:632c9925f013	735	static struct pbuf *
donatien	0:632c9925f013	736	pppAppend(u_char c, struct pbuf nb, ext_accm outACCM)
donatien	0:632c9925f013	737	{
donatien	0:632c9925f013	738	struct pbuf *tb = nb;
donatien	0:632c9925f013	739
donatien	0:632c9925f013	740	/* Make sure there is room for the character and an escape code.
donatien	0:632c9925f013	741	* Sure we don't quite fill the buffer if the character doesn't
donatien	0:632c9925f013	742	* get escaped but is one character worth complicating this? */
donatien	0:632c9925f013	743	/* Note: We assume no packet header. */
donatien	0:632c9925f013	744	if (nb && (PBUF_POOL_BUFSIZE - nb->len) < 2) {
donatien	0:632c9925f013	745	tb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
donatien	0:632c9925f013	746	if (tb) {
donatien	0:632c9925f013	747	nb->next = tb;
donatien	0:632c9925f013	748	} else {
donatien	0:632c9925f013	749	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	750	}
donatien	0:632c9925f013	751	nb = tb;
donatien	0:632c9925f013	752	}
donatien	0:632c9925f013	753
donatien	0:632c9925f013	754	if (nb) {
donatien	0:632c9925f013	755	if (outACCM && ESCAPE_P(*outACCM, c)) {
donatien	0:632c9925f013	756	((u_char)nb->payload + nb->len++) = PPP_ESCAPE;
donatien	0:632c9925f013	757	((u_char)nb->payload + nb->len++) = c ^ PPP_TRANS;
donatien	0:632c9925f013	758	} else {
donatien	0:632c9925f013	759	((u_char)nb->payload + nb->len++) = c;
donatien	0:632c9925f013	760	}
donatien	0:632c9925f013	761	}
donatien	0:632c9925f013	762
donatien	0:632c9925f013	763	return tb;
donatien	0:632c9925f013	764	}
donatien	0:632c9925f013	765	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	766
donatien	0:632c9925f013	767	#if PPPOE_SUPPORT
donatien	0:632c9925f013	768	static err_t
donatien	0:632c9925f013	769	pppnetifOutputOverEthernet(int pd, struct pbuf *p)
donatien	0:632c9925f013	770	{
donatien	0:632c9925f013	771	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	772	struct pbuf *pb;
donatien	0:632c9925f013	773	u_short protocol = PPP_IP;
donatien	0:632c9925f013	774	int i=0;
donatien	0:632c9925f013	775	u16_t tot_len;
donatien	0:632c9925f013	776
donatien	0:632c9925f013	777	/* @todo: try to use pbuf_header() here! */
donatien	0:632c9925f013	778	pb = pbuf_alloc(PBUF_LINK, PPPOE_HDRLEN + sizeof(protocol), PBUF_RAM);
donatien	0:632c9925f013	779	if(!pb) {
donatien	0:632c9925f013	780	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	781	LINK_STATS_INC(link.proterr);
donatien	0:632c9925f013	782	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	783	return ERR_MEM;
donatien	0:632c9925f013	784	}
donatien	0:632c9925f013	785
donatien	0:632c9925f013	786	pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
donatien	0:632c9925f013	787
donatien	0:632c9925f013	788	pc->lastXMit = sys_jiffies();
donatien	0:632c9925f013	789
donatien	0:632c9925f013	790	if (!pc->pcomp \|\| protocol > 0xFF) {
donatien	0:632c9925f013	791	((u_char)pb->payload + i++) = (protocol >> 8) & 0xFF;
donatien	0:632c9925f013	792	}
donatien	0:632c9925f013	793	((u_char)pb->payload + i) = protocol & 0xFF;
donatien	0:632c9925f013	794
donatien	0:632c9925f013	795	pbuf_chain(pb, p);
donatien	0:632c9925f013	796	tot_len = pb->tot_len;
donatien	0:632c9925f013	797
donatien	0:632c9925f013	798	if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
donatien	0:632c9925f013	799	LINK_STATS_INC(link.err);
donatien	0:632c9925f013	800	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	801	return PPPERR_DEVICE;
donatien	0:632c9925f013	802	}
donatien	0:632c9925f013	803
donatien	0:632c9925f013	804	snmp_add_ifoutoctets(&pc->netif, tot_len);
donatien	0:632c9925f013	805	snmp_inc_ifoutucastpkts(&pc->netif);
donatien	0:632c9925f013	806	LINK_STATS_INC(link.xmit);
donatien	0:632c9925f013	807	return ERR_OK;
donatien	0:632c9925f013	808	}
donatien	0:632c9925f013	809	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	810
donatien	0:632c9925f013	811	/* Send a packet on the given connection. */
donatien	0:632c9925f013	812	static err_t
donatien	0:632c9925f013	813	pppnetifOutput(struct netif netif, struct pbuf pb, ip_addr_t *ipaddr)
donatien	0:632c9925f013	814	{
donatien	0:632c9925f013	815	int pd = (int)(size_t)netif->state;
donatien	0:632c9925f013	816	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	817	#if PPPOS_SUPPORT
donatien	0:632c9925f013	818	u_short protocol = PPP_IP;
donatien	0:632c9925f013	819	u_int fcsOut = PPP_INITFCS;
donatien	0:632c9925f013	820	struct pbuf headMB = NULL, tailMB = NULL, *p;
donatien	0:632c9925f013	821	u_char c;
donatien	0:632c9925f013	822	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	823
donatien	0:632c9925f013	824	LWIP_UNUSED_ARG(ipaddr);
donatien	0:632c9925f013	825
donatien	0:632c9925f013	826	/* Validate parameters. */
donatien	0:632c9925f013	827	/* We let any protocol value go through - it can't hurt us
donatien	0:632c9925f013	828	* and the peer will just drop it if it's not accepting it. */
donatien	0:632c9925f013	829	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag \|\| !pb) {
donatien	0:632c9925f013	830	PPPDEBUG(LOG_WARNING, ("pppnetifOutput[%d]: bad parms prot=%d pb=%p\n",
donatien	0:632c9925f013	831	pd, PPP_IP, pb));
donatien	0:632c9925f013	832	LINK_STATS_INC(link.opterr);
donatien	0:632c9925f013	833	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	834	snmp_inc_ifoutdiscards(netif);
donatien	0:632c9925f013	835	return ERR_ARG;
donatien	0:632c9925f013	836	}
donatien	0:632c9925f013	837
donatien	0:632c9925f013	838	/* Check that the link is up. */
donatien	0:632c9925f013	839	if (lcp_phase[pd] == PHASE_DEAD) {
donatien	0:632c9925f013	840	PPPDEBUG(LOG_ERR, ("pppnetifOutput[%d]: link not up\n", pd));
donatien	0:632c9925f013	841	LINK_STATS_INC(link.rterr);
donatien	0:632c9925f013	842	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	843	snmp_inc_ifoutdiscards(netif);
donatien	0:632c9925f013	844	return ERR_RTE;
donatien	0:632c9925f013	845	}
donatien	0:632c9925f013	846
donatien	0:632c9925f013	847	#if PPPOE_SUPPORT
donatien	0:632c9925f013	848	if(pc->ethif) {
donatien	0:632c9925f013	849	return pppnetifOutputOverEthernet(pd, pb);
donatien	0:632c9925f013	850	}
donatien	0:632c9925f013	851	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	852
donatien	0:632c9925f013	853	#if PPPOS_SUPPORT
donatien	0:632c9925f013	854	/* Grab an output buffer. */
donatien	0:632c9925f013	855	headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
donatien	0:632c9925f013	856	if (headMB == NULL) {
donatien	0:632c9925f013	857	PPPDEBUG(LOG_WARNING, ("pppnetifOutput[%d]: first alloc fail\n", pd));
donatien	0:632c9925f013	858	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	859	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	860	snmp_inc_ifoutdiscards(netif);
donatien	0:632c9925f013	861	return ERR_MEM;
donatien	0:632c9925f013	862	}
donatien	0:632c9925f013	863
donatien	0:632c9925f013	864	#if VJ_SUPPORT
donatien	0:632c9925f013	865	/*
donatien	0:632c9925f013	866	* Attempt Van Jacobson header compression if VJ is configured and
donatien	0:632c9925f013	867	* this is an IP packet.
donatien	0:632c9925f013	868	*/
donatien	0:632c9925f013	869	if (protocol == PPP_IP && pc->vjEnabled) {
donatien	0:632c9925f013	870	switch (vj_compress_tcp(&pc->vjComp, pb)) {
donatien	0:632c9925f013	871	case TYPE_IP:
donatien	0:632c9925f013	872	/* No change...
donatien	0:632c9925f013	873	protocol = PPP_IP_PROTOCOL; */
donatien	0:632c9925f013	874	break;
donatien	0:632c9925f013	875	case TYPE_COMPRESSED_TCP:
donatien	0:632c9925f013	876	protocol = PPP_VJC_COMP;
donatien	0:632c9925f013	877	break;
donatien	0:632c9925f013	878	case TYPE_UNCOMPRESSED_TCP:
donatien	0:632c9925f013	879	protocol = PPP_VJC_UNCOMP;
donatien	0:632c9925f013	880	break;
donatien	0:632c9925f013	881	default:
donatien	0:632c9925f013	882	PPPDEBUG(LOG_WARNING, ("pppnetifOutput[%d]: bad IP packet\n", pd));
donatien	0:632c9925f013	883	LINK_STATS_INC(link.proterr);
donatien	0:632c9925f013	884	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	885	snmp_inc_ifoutdiscards(netif);
donatien	0:632c9925f013	886	pbuf_free(headMB);
donatien	0:632c9925f013	887	return ERR_VAL;
donatien	0:632c9925f013	888	}
donatien	0:632c9925f013	889	}
donatien	0:632c9925f013	890	#endif /* VJ_SUPPORT */
donatien	0:632c9925f013	891
donatien	0:632c9925f013	892	tailMB = headMB;
donatien	0:632c9925f013	893
donatien	0:632c9925f013	894	/* Build the PPP header. */
donatien	0:632c9925f013	895	if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
donatien	0:632c9925f013	896	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
donatien	0:632c9925f013	897	}
donatien	0:632c9925f013	898
donatien	0:632c9925f013	899	pc->lastXMit = sys_jiffies();
donatien	0:632c9925f013	900	if (!pc->accomp) {
donatien	0:632c9925f013	901	fcsOut = PPP_FCS(fcsOut, PPP_ALLSTATIONS);
donatien	0:632c9925f013	902	tailMB = pppAppend(PPP_ALLSTATIONS, tailMB, &pc->outACCM);
donatien	0:632c9925f013	903	fcsOut = PPP_FCS(fcsOut, PPP_UI);
donatien	0:632c9925f013	904	tailMB = pppAppend(PPP_UI, tailMB, &pc->outACCM);
donatien	0:632c9925f013	905	}
donatien	0:632c9925f013	906	if (!pc->pcomp \|\| protocol > 0xFF) {
donatien	0:632c9925f013	907	c = (protocol >> 8) & 0xFF;
donatien	0:632c9925f013	908	fcsOut = PPP_FCS(fcsOut, c);
donatien	0:632c9925f013	909	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	910	}
donatien	0:632c9925f013	911	c = protocol & 0xFF;
donatien	0:632c9925f013	912	fcsOut = PPP_FCS(fcsOut, c);
donatien	0:632c9925f013	913	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	914
donatien	0:632c9925f013	915	/* Load packet. */
donatien	0:632c9925f013	916	for(p = pb; p; p = p->next) {
donatien	0:632c9925f013	917	int n;
donatien	0:632c9925f013	918	u_char *sPtr;
donatien	0:632c9925f013	919
donatien	0:632c9925f013	920	sPtr = (u_char*)p->payload;
donatien	0:632c9925f013	921	n = p->len;
donatien	0:632c9925f013	922	while (n-- > 0) {
donatien	0:632c9925f013	923	c = *sPtr++;
donatien	0:632c9925f013	924
donatien	0:632c9925f013	925	/* Update FCS before checking for special characters. */
donatien	0:632c9925f013	926	fcsOut = PPP_FCS(fcsOut, c);
donatien	0:632c9925f013	927
donatien	0:632c9925f013	928	/* Copy to output buffer escaping special characters. */
donatien	0:632c9925f013	929	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	930	}
donatien	0:632c9925f013	931	}
donatien	0:632c9925f013	932
donatien	0:632c9925f013	933	/* Add FCS and trailing flag. */
donatien	0:632c9925f013	934	c = ~fcsOut & 0xFF;
donatien	0:632c9925f013	935	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	936	c = (~fcsOut >> 8) & 0xFF;
donatien	0:632c9925f013	937	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	938	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
donatien	0:632c9925f013	939
donatien	0:632c9925f013	940	/* If we failed to complete the packet, throw it away. */
donatien	0:632c9925f013	941	if (!tailMB) {
donatien	0:632c9925f013	942	PPPDEBUG(LOG_WARNING,
donatien	0:632c9925f013	943	("pppnetifOutput[%d]: Alloc err - dropping proto=%d\n",
donatien	0:632c9925f013	944	pd, protocol));
donatien	0:632c9925f013	945	pbuf_free(headMB);
donatien	0:632c9925f013	946	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	947	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	948	snmp_inc_ifoutdiscards(netif);
donatien	0:632c9925f013	949	return ERR_MEM;
donatien	0:632c9925f013	950	}
donatien	0:632c9925f013	951
donatien	0:632c9925f013	952	/* Send it. */
donatien	0:632c9925f013	953	PPPDEBUG(LOG_INFO, ("pppnetifOutput[%d]: proto=0x%"X16_F"\n", pd, protocol));
donatien	0:632c9925f013	954
donatien	0:632c9925f013	955	nPut(pc, headMB);
donatien	0:632c9925f013	956	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	957
donatien	0:632c9925f013	958	return ERR_OK;
donatien	0:632c9925f013	959	}
donatien	0:632c9925f013	960
donatien	0:632c9925f013	961	/* Get and set parameters for the given connection.
donatien	0:632c9925f013	962	* Return 0 on success, an error code on failure. */
donatien	0:632c9925f013	963	int
donatien	0:632c9925f013	964	pppIOCtl(int pd, int cmd, void *arg)
donatien	0:632c9925f013	965	{
donatien	0:632c9925f013	966	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	967	int st = 0;
donatien	0:632c9925f013	968
donatien	0:632c9925f013	969	if (pd < 0 \|\| pd >= NUM_PPP) {
donatien	0:632c9925f013	970	st = PPPERR_PARAM;
donatien	0:632c9925f013	971	} else {
donatien	0:632c9925f013	972	switch(cmd) {
donatien	0:632c9925f013	973	case PPPCTLG_UPSTATUS: /* Get the PPP up status. */
donatien	0:632c9925f013	974	if (arg) {
donatien	0:632c9925f013	975	(int )arg = (int)(pc->if_up);
donatien	0:632c9925f013	976	} else {
donatien	0:632c9925f013	977	st = PPPERR_PARAM;
donatien	0:632c9925f013	978	}
donatien	0:632c9925f013	979	break;
donatien	0:632c9925f013	980	case PPPCTLS_ERRCODE: /* Set the PPP error code. */
donatien	0:632c9925f013	981	if (arg) {
donatien	0:632c9925f013	982	pc->errCode = (int )arg;
donatien	0:632c9925f013	983	} else {
donatien	0:632c9925f013	984	st = PPPERR_PARAM;
donatien	0:632c9925f013	985	}
donatien	0:632c9925f013	986	break;
donatien	0:632c9925f013	987	case PPPCTLG_ERRCODE: /* Get the PPP error code. */
donatien	0:632c9925f013	988	if (arg) {
donatien	0:632c9925f013	989	(int )arg = (int)(pc->errCode);
donatien	0:632c9925f013	990	} else {
donatien	0:632c9925f013	991	st = PPPERR_PARAM;
donatien	0:632c9925f013	992	}
donatien	0:632c9925f013	993	break;
donatien	0:632c9925f013	994	#if PPPOS_SUPPORT
donatien	0:632c9925f013	995	case PPPCTLG_FD: /* Get the fd associated with the ppp */
donatien	0:632c9925f013	996	if (arg) {
donatien	0:632c9925f013	997	(sio_fd_t )arg = pc->fd;
donatien	0:632c9925f013	998	} else {
donatien	0:632c9925f013	999	st = PPPERR_PARAM;
donatien	0:632c9925f013	1000	}
donatien	0:632c9925f013	1001	break;
donatien	0:632c9925f013	1002	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	1003	default:
donatien	0:632c9925f013	1004	st = PPPERR_PARAM;
donatien	0:632c9925f013	1005	break;
donatien	0:632c9925f013	1006	}
donatien	0:632c9925f013	1007	}
donatien	0:632c9925f013	1008
donatien	0:632c9925f013	1009	return st;
donatien	0:632c9925f013	1010	}
donatien	0:632c9925f013	1011
donatien	0:632c9925f013	1012	/*
donatien	0:632c9925f013	1013	* Return the Maximum Transmission Unit for the given PPP connection.
donatien	0:632c9925f013	1014	*/
donatien	0:632c9925f013	1015	u_short
donatien	0:632c9925f013	1016	pppMTU(int pd)
donatien	0:632c9925f013	1017	{
donatien	0:632c9925f013	1018	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1019	u_short st;
donatien	0:632c9925f013	1020
donatien	0:632c9925f013	1021	/* Validate parameters. */
donatien	0:632c9925f013	1022	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1023	st = 0;
donatien	0:632c9925f013	1024	} else {
donatien	0:632c9925f013	1025	st = pc->mtu;
donatien	0:632c9925f013	1026	}
donatien	0:632c9925f013	1027
donatien	0:632c9925f013	1028	return st;
donatien	0:632c9925f013	1029	}
donatien	0:632c9925f013	1030
donatien	0:632c9925f013	1031	#if PPPOE_SUPPORT
donatien	0:632c9925f013	1032	int
donatien	0:632c9925f013	1033	pppWriteOverEthernet(int pd, const u_char *s, int n)
donatien	0:632c9925f013	1034	{
donatien	0:632c9925f013	1035	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1036	struct pbuf *pb;
donatien	0:632c9925f013	1037
donatien	0:632c9925f013	1038	/* skip address & flags */
donatien	0:632c9925f013	1039	s += 2;
donatien	0:632c9925f013	1040	n -= 2;
donatien	0:632c9925f013	1041
donatien	0:632c9925f013	1042	LWIP_ASSERT("PPPOE_HDRLEN + n <= 0xffff", PPPOE_HDRLEN + n <= 0xffff);
donatien	0:632c9925f013	1043	pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HDRLEN + n), PBUF_RAM);
donatien	0:632c9925f013	1044	if(!pb) {
donatien	0:632c9925f013	1045	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	1046	LINK_STATS_INC(link.proterr);
donatien	0:632c9925f013	1047	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	1048	return PPPERR_ALLOC;
donatien	0:632c9925f013	1049	}
donatien	0:632c9925f013	1050
donatien	0:632c9925f013	1051	pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
donatien	0:632c9925f013	1052
donatien	0:632c9925f013	1053	pc->lastXMit = sys_jiffies();
donatien	0:632c9925f013	1054
donatien	0:632c9925f013	1055	MEMCPY(pb->payload, s, n);
donatien	0:632c9925f013	1056
donatien	0:632c9925f013	1057	if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
donatien	0:632c9925f013	1058	LINK_STATS_INC(link.err);
donatien	0:632c9925f013	1059	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	1060	return PPPERR_DEVICE;
donatien	0:632c9925f013	1061	}
donatien	0:632c9925f013	1062
donatien	0:632c9925f013	1063	snmp_add_ifoutoctets(&pc->netif, (u16_t)n);
donatien	0:632c9925f013	1064	snmp_inc_ifoutucastpkts(&pc->netif);
donatien	0:632c9925f013	1065	LINK_STATS_INC(link.xmit);
donatien	0:632c9925f013	1066	return PPPERR_NONE;
donatien	0:632c9925f013	1067	}
donatien	0:632c9925f013	1068	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	1069
donatien	0:632c9925f013	1070	/*
donatien	0:632c9925f013	1071	* Write n characters to a ppp link.
donatien	0:632c9925f013	1072	* RETURN: >= 0 Number of characters written
donatien	0:632c9925f013	1073	* -1 Failed to write to device
donatien	0:632c9925f013	1074	*/
donatien	0:632c9925f013	1075	int
donatien	0:632c9925f013	1076	pppWrite(int pd, const u_char *s, int n)
donatien	0:632c9925f013	1077	{
donatien	0:632c9925f013	1078	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1079	#if PPPOS_SUPPORT
donatien	0:632c9925f013	1080	u_char c;
donatien	0:632c9925f013	1081	u_int fcsOut;
donatien	0:632c9925f013	1082	struct pbuf headMB, tailMB;
donatien	0:632c9925f013	1083	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	1084
donatien	0:632c9925f013	1085	#if PPPOE_SUPPORT
donatien	0:632c9925f013	1086	if(pc->ethif) {
donatien	0:632c9925f013	1087	return pppWriteOverEthernet(pd, s, n);
donatien	0:632c9925f013	1088	}
donatien	0:632c9925f013	1089	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	1090
donatien	0:632c9925f013	1091	#if PPPOS_SUPPORT
donatien	0:632c9925f013	1092	headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
donatien	0:632c9925f013	1093	if (headMB == NULL) {
donatien	0:632c9925f013	1094	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	1095	LINK_STATS_INC(link.proterr);
donatien	0:632c9925f013	1096	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	1097	return PPPERR_ALLOC;
donatien	0:632c9925f013	1098	}
donatien	0:632c9925f013	1099
donatien	0:632c9925f013	1100	tailMB = headMB;
donatien	0:632c9925f013	1101
donatien	0:632c9925f013	1102	/* If the link has been idle, we'll send a fresh flag character to
donatien	0:632c9925f013	1103	* flush any noise. */
donatien	0:632c9925f013	1104	if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
donatien	0:632c9925f013	1105	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
donatien	0:632c9925f013	1106	}
donatien	0:632c9925f013	1107	pc->lastXMit = sys_jiffies();
donatien	0:632c9925f013	1108
donatien	0:632c9925f013	1109	fcsOut = PPP_INITFCS;
donatien	0:632c9925f013	1110	/* Load output buffer. */
donatien	0:632c9925f013	1111	while (n-- > 0) {
donatien	0:632c9925f013	1112	c = *s++;
donatien	0:632c9925f013	1113
donatien	0:632c9925f013	1114	/* Update FCS before checking for special characters. */
donatien	0:632c9925f013	1115	fcsOut = PPP_FCS(fcsOut, c);
donatien	0:632c9925f013	1116
donatien	0:632c9925f013	1117	/* Copy to output buffer escaping special characters. */
donatien	0:632c9925f013	1118	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	1119	}
donatien	0:632c9925f013	1120
donatien	0:632c9925f013	1121	/* Add FCS and trailing flag. */
donatien	0:632c9925f013	1122	c = ~fcsOut & 0xFF;
donatien	0:632c9925f013	1123	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	1124	c = (~fcsOut >> 8) & 0xFF;
donatien	0:632c9925f013	1125	tailMB = pppAppend(c, tailMB, &pc->outACCM);
donatien	0:632c9925f013	1126	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
donatien	0:632c9925f013	1127
donatien	0:632c9925f013	1128	/* If we failed to complete the packet, throw it away.
donatien	0:632c9925f013	1129	* Otherwise send it. */
donatien	0:632c9925f013	1130	if (!tailMB) {
donatien	0:632c9925f013	1131	PPPDEBUG(LOG_WARNING,
donatien	0:632c9925f013	1132	("pppWrite[%d]: Alloc err - dropping pbuf len=%d\n", pd, headMB->len));
donatien	0:632c9925f013	1133	/"pppWrite[%d]: Alloc err - dropping %d:%.H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
donatien	0:632c9925f013	1134	pbuf_free(headMB);
donatien	0:632c9925f013	1135	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	1136	LINK_STATS_INC(link.proterr);
donatien	0:632c9925f013	1137	snmp_inc_ifoutdiscards(&pc->netif);
donatien	0:632c9925f013	1138	return PPPERR_ALLOC;
donatien	0:632c9925f013	1139	}
donatien	0:632c9925f013	1140
donatien	0:632c9925f013	1141	PPPDEBUG(LOG_INFO, ("pppWrite[%d]: len=%d\n", pd, headMB->len));
donatien	0:632c9925f013	1142	/* "pppWrite[%d]: %d:%.H", pd, headMB->len, LWIP_MIN(headMB->len 2, 40), headMB->payload)); */
donatien	0:632c9925f013	1143	nPut(pc, headMB);
donatien	0:632c9925f013	1144	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	1145
donatien	0:632c9925f013	1146	return PPPERR_NONE;
donatien	0:632c9925f013	1147	}
donatien	0:632c9925f013	1148
donatien	0:632c9925f013	1149	/*
donatien	0:632c9925f013	1150	* ppp_send_config - configure the transmit characteristics of
donatien	0:632c9925f013	1151	* the ppp interface.
donatien	0:632c9925f013	1152	*/
donatien	0:632c9925f013	1153	void
donatien	0:632c9925f013	1154	ppp_send_config( int unit, u16_t mtu, u32_t asyncmap, int pcomp, int accomp)
donatien	0:632c9925f013	1155	{
donatien	0:632c9925f013	1156	PPPControl *pc = &pppControl[unit];
donatien	0:632c9925f013	1157	int i;
donatien	0:632c9925f013	1158
donatien	0:632c9925f013	1159	pc->mtu = mtu;
donatien	0:632c9925f013	1160	pc->pcomp = pcomp;
donatien	0:632c9925f013	1161	pc->accomp = accomp;
donatien	0:632c9925f013	1162
donatien	0:632c9925f013	1163	/* Load the ACCM bits for the 32 control codes. */
donatien	0:632c9925f013	1164	for (i = 0; i < 32/8; i++) {
donatien	0:632c9925f013	1165	pc->outACCM[i] = (u_char)((asyncmap >> (8 * i)) & 0xFF);
donatien	0:632c9925f013	1166	}
donatien	0:632c9925f013	1167	PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]: outACCM=%X %X %X %X\n",
donatien	0:632c9925f013	1168	unit,
donatien	0:632c9925f013	1169	pc->outACCM[0], pc->outACCM[1], pc->outACCM[2], pc->outACCM[3]));
donatien	0:632c9925f013	1170	}
donatien	0:632c9925f013	1171
donatien	0:632c9925f013	1172
donatien	0:632c9925f013	1173	/*
donatien	0:632c9925f013	1174	* ppp_set_xaccm - set the extended transmit ACCM for the interface.
donatien	0:632c9925f013	1175	*/
donatien	0:632c9925f013	1176	void
donatien	0:632c9925f013	1177	ppp_set_xaccm(int unit, ext_accm *accm)
donatien	0:632c9925f013	1178	{
donatien	0:632c9925f013	1179	SMEMCPY(pppControl[unit].outACCM, accm, sizeof(ext_accm));
donatien	0:632c9925f013	1180	PPPDEBUG(LOG_INFO, ("ppp_set_xaccm[%d]: outACCM=%X %X %X %X\n",
donatien	0:632c9925f013	1181	unit,
donatien	0:632c9925f013	1182	pppControl[unit].outACCM[0],
donatien	0:632c9925f013	1183	pppControl[unit].outACCM[1],
donatien	0:632c9925f013	1184	pppControl[unit].outACCM[2],
donatien	0:632c9925f013	1185	pppControl[unit].outACCM[3]));
donatien	0:632c9925f013	1186	}
donatien	0:632c9925f013	1187
donatien	0:632c9925f013	1188
donatien	0:632c9925f013	1189	/*
donatien	0:632c9925f013	1190	* ppp_recv_config - configure the receive-side characteristics of
donatien	0:632c9925f013	1191	* the ppp interface.
donatien	0:632c9925f013	1192	*/
donatien	0:632c9925f013	1193	void
donatien	0:632c9925f013	1194	ppp_recv_config( int unit, int mru, u32_t asyncmap, int pcomp, int accomp)
donatien	0:632c9925f013	1195	{
donatien	0:632c9925f013	1196	PPPControl *pc = &pppControl[unit];
donatien	0:632c9925f013	1197	int i;
donatien	0:632c9925f013	1198	SYS_ARCH_DECL_PROTECT(lev);
donatien	0:632c9925f013	1199
donatien	0:632c9925f013	1200	LWIP_UNUSED_ARG(accomp);
donatien	0:632c9925f013	1201	LWIP_UNUSED_ARG(pcomp);
donatien	0:632c9925f013	1202	LWIP_UNUSED_ARG(mru);
donatien	0:632c9925f013	1203
donatien	0:632c9925f013	1204	/* Load the ACCM bits for the 32 control codes. */
donatien	0:632c9925f013	1205	SYS_ARCH_PROTECT(lev);
donatien	0:632c9925f013	1206	for (i = 0; i < 32 / 8; i++) {
donatien	0:632c9925f013	1207	/* @todo: does this work? ext_accm has been modified from pppd! */
donatien	0:632c9925f013	1208	pc->rx.inACCM[i] = (u_char)(asyncmap >> (i * 8));
donatien	0:632c9925f013	1209	}
donatien	0:632c9925f013	1210	SYS_ARCH_UNPROTECT(lev);
donatien	0:632c9925f013	1211	PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]: inACCM=%X %X %X %X\n",
donatien	0:632c9925f013	1212	unit,
donatien	0:632c9925f013	1213	pc->rx.inACCM[0], pc->rx.inACCM[1], pc->rx.inACCM[2], pc->rx.inACCM[3]));
donatien	0:632c9925f013	1214	}
donatien	0:632c9925f013	1215
donatien	0:632c9925f013	1216	#if 0
donatien	0:632c9925f013	1217	/*
donatien	0:632c9925f013	1218	* ccp_test - ask kernel whether a given compression method
donatien	0:632c9925f013	1219	* is acceptable for use. Returns 1 if the method and parameters
donatien	0:632c9925f013	1220	* are OK, 0 if the method is known but the parameters are not OK
donatien	0:632c9925f013	1221	* (e.g. code size should be reduced), or -1 if the method is unknown.
donatien	0:632c9925f013	1222	*/
donatien	0:632c9925f013	1223	int
donatien	0:632c9925f013	1224	ccp_test( int unit, int opt_len, int for_transmit, u_char *opt_ptr)
donatien	0:632c9925f013	1225	{
donatien	0:632c9925f013	1226	return 0; /* XXX Currently no compression. */
donatien	0:632c9925f013	1227	}
donatien	0:632c9925f013	1228
donatien	0:632c9925f013	1229	/*
donatien	0:632c9925f013	1230	* ccp_flags_set - inform kernel about the current state of CCP.
donatien	0:632c9925f013	1231	*/
donatien	0:632c9925f013	1232	void
donatien	0:632c9925f013	1233	ccp_flags_set(int unit, int isopen, int isup)
donatien	0:632c9925f013	1234	{
donatien	0:632c9925f013	1235	/* XXX */
donatien	0:632c9925f013	1236	}
donatien	0:632c9925f013	1237
donatien	0:632c9925f013	1238	/*
donatien	0:632c9925f013	1239	* ccp_fatal_error - returns 1 if decompression was disabled as a
donatien	0:632c9925f013	1240	* result of an error detected after decompression of a packet,
donatien	0:632c9925f013	1241	* 0 otherwise. This is necessary because of patent nonsense.
donatien	0:632c9925f013	1242	*/
donatien	0:632c9925f013	1243	int
donatien	0:632c9925f013	1244	ccp_fatal_error(int unit)
donatien	0:632c9925f013	1245	{
donatien	0:632c9925f013	1246	/* XXX */
donatien	0:632c9925f013	1247	return 0;
donatien	0:632c9925f013	1248	}
donatien	0:632c9925f013	1249	#endif
donatien	0:632c9925f013	1250
donatien	0:632c9925f013	1251	/*
donatien	0:632c9925f013	1252	* get_idle_time - return how long the link has been idle.
donatien	0:632c9925f013	1253	*/
donatien	0:632c9925f013	1254	int
donatien	0:632c9925f013	1255	get_idle_time(int u, struct ppp_idle *ip)
donatien	0:632c9925f013	1256	{
donatien	0:632c9925f013	1257	/* XXX */
donatien	0:632c9925f013	1258	LWIP_UNUSED_ARG(u);
donatien	0:632c9925f013	1259	LWIP_UNUSED_ARG(ip);
donatien	0:632c9925f013	1260
donatien	0:632c9925f013	1261	return 0;
donatien	0:632c9925f013	1262	}
donatien	0:632c9925f013	1263
donatien	0:632c9925f013	1264
donatien	0:632c9925f013	1265	/*
donatien	0:632c9925f013	1266	* Return user specified netmask, modified by any mask we might determine
donatien	0:632c9925f013	1267	* for address `addr' (in network byte order).
donatien	0:632c9925f013	1268	* Here we scan through the system's list of interfaces, looking for
donatien	0:632c9925f013	1269	* any non-point-to-point interfaces which might appear to be on the same
donatien	0:632c9925f013	1270	* network as `addr'. If we find any, we OR in their netmask to the
donatien	0:632c9925f013	1271	* user-specified netmask.
donatien	0:632c9925f013	1272	*/
donatien	0:632c9925f013	1273	u32_t
donatien	0:632c9925f013	1274	GetMask(u32_t addr)
donatien	0:632c9925f013	1275	{
donatien	0:632c9925f013	1276	u32_t mask, nmask;
donatien	0:632c9925f013	1277
donatien	0:632c9925f013	1278	htonl(addr);
donatien	0:632c9925f013	1279	if (IP_CLASSA(addr)) { /* determine network mask for address class */
donatien	0:632c9925f013	1280	nmask = IP_CLASSA_NET;
donatien	0:632c9925f013	1281	} else if (IP_CLASSB(addr)) {
donatien	0:632c9925f013	1282	nmask = IP_CLASSB_NET;
donatien	0:632c9925f013	1283	} else {
donatien	0:632c9925f013	1284	nmask = IP_CLASSC_NET;
donatien	0:632c9925f013	1285	}
donatien	0:632c9925f013	1286
donatien	0:632c9925f013	1287	/* class D nets are disallowed by bad_ip_adrs */
donatien	0:632c9925f013	1288	mask = subnetMask \| htonl(nmask);
donatien	0:632c9925f013	1289
donatien	0:632c9925f013	1290	/* XXX
donatien	0:632c9925f013	1291	* Scan through the system's network interfaces.
donatien	0:632c9925f013	1292	* Get each netmask and OR them into our mask.
donatien	0:632c9925f013	1293	*/
donatien	0:632c9925f013	1294
donatien	0:632c9925f013	1295	return mask;
donatien	0:632c9925f013	1296	}
donatien	0:632c9925f013	1297
donatien	0:632c9925f013	1298	/*
donatien	0:632c9925f013	1299	* sifvjcomp - config tcp header compression
donatien	0:632c9925f013	1300	*/
donatien	0:632c9925f013	1301	int
donatien	0:632c9925f013	1302	sifvjcomp(int pd, int vjcomp, u8_t cidcomp, u8_t maxcid)
donatien	0:632c9925f013	1303	{
donatien	0:632c9925f013	1304	#if PPPOS_SUPPORT && VJ_SUPPORT
donatien	0:632c9925f013	1305	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1306
donatien	0:632c9925f013	1307	pc->vjEnabled = vjcomp;
donatien	0:632c9925f013	1308	pc->vjComp.compressSlot = cidcomp;
donatien	0:632c9925f013	1309	pc->vjComp.maxSlotIndex = maxcid;
donatien	0:632c9925f013	1310	PPPDEBUG(LOG_INFO, ("sifvjcomp: VJ compress enable=%d slot=%d max slot=%d\n",
donatien	0:632c9925f013	1311	vjcomp, cidcomp, maxcid));
donatien	0:632c9925f013	1312	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1313	LWIP_UNUSED_ARG(pd);
donatien	0:632c9925f013	1314	LWIP_UNUSED_ARG(vjcomp);
donatien	0:632c9925f013	1315	LWIP_UNUSED_ARG(cidcomp);
donatien	0:632c9925f013	1316	LWIP_UNUSED_ARG(maxcid);
donatien	0:632c9925f013	1317	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1318
donatien	0:632c9925f013	1319	return 0;
donatien	0:632c9925f013	1320	}
donatien	0:632c9925f013	1321
donatien	0:632c9925f013	1322	/*
donatien	0:632c9925f013	1323	* pppnetifNetifInit - netif init callback
donatien	0:632c9925f013	1324	*/
donatien	0:632c9925f013	1325	static err_t
donatien	0:632c9925f013	1326	pppnetifNetifInit(struct netif *netif)
donatien	0:632c9925f013	1327	{
donatien	0:632c9925f013	1328	netif->name[0] = 'p';
donatien	0:632c9925f013	1329	netif->name[1] = 'p';
donatien	0:632c9925f013	1330	netif->output = pppnetifOutput;
donatien	0:632c9925f013	1331	netif->mtu = pppMTU((int)(size_t)netif->state);
donatien	0:632c9925f013	1332	netif->flags = NETIF_FLAG_POINTTOPOINT \| NETIF_FLAG_LINK_UP;
donatien	0:632c9925f013	1333	#if LWIP_NETIF_HOSTNAME
donatien	0:632c9925f013	1334	/* @todo: Initialize interface hostname */
donatien	0:632c9925f013	1335	/* netif_set_hostname(netif, "lwip"); */
donatien	0:632c9925f013	1336	#endif /* LWIP_NETIF_HOSTNAME */
donatien	0:632c9925f013	1337	return ERR_OK;
donatien	0:632c9925f013	1338	}
donatien	0:632c9925f013	1339
donatien	0:632c9925f013	1340
donatien	0:632c9925f013	1341	/*
donatien	0:632c9925f013	1342	* sifup - Config the interface up and enable IP packets to pass.
donatien	0:632c9925f013	1343	*/
donatien	0:632c9925f013	1344	int
donatien	0:632c9925f013	1345	sifup(int pd)
donatien	0:632c9925f013	1346	{
donatien	0:632c9925f013	1347	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1348	int st = 1;
donatien	0:632c9925f013	1349
donatien	0:632c9925f013	1350	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1351	st = 0;
donatien	0:632c9925f013	1352	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1353	} else {
donatien	0:632c9925f013	1354	netif_remove(&pc->netif);
donatien	0:632c9925f013	1355	if (netif_add(&pc->netif, &pc->addrs.our_ipaddr, &pc->addrs.netmask,
donatien	0:632c9925f013	1356	&pc->addrs.his_ipaddr, (void *)(size_t)pd, pppnetifNetifInit, ip_input)) {
donatien	0:632c9925f013	1357	netif_set_up(&pc->netif);
donatien	0:632c9925f013	1358	pc->if_up = 1;
donatien	0:632c9925f013	1359	pc->errCode = PPPERR_NONE;
donatien	0:632c9925f013	1360
donatien	0:632c9925f013	1361	PPPDEBUG(LOG_DEBUG, ("sifup: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
donatien	0:632c9925f013	1362	if (pc->linkStatusCB) {
donatien	0:632c9925f013	1363	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode, &pc->addrs);
donatien	0:632c9925f013	1364	}
donatien	0:632c9925f013	1365	} else {
donatien	0:632c9925f013	1366	st = 0;
donatien	0:632c9925f013	1367	PPPDEBUG(LOG_ERR, ("sifup[%d]: netif_add failed\n", pd));
donatien	0:632c9925f013	1368	}
donatien	0:632c9925f013	1369	}
donatien	0:632c9925f013	1370
donatien	0:632c9925f013	1371	return st;
donatien	0:632c9925f013	1372	}
donatien	0:632c9925f013	1373
donatien	0:632c9925f013	1374	/*
donatien	0:632c9925f013	1375	* sifnpmode - Set the mode for handling packets for a given NP.
donatien	0:632c9925f013	1376	*/
donatien	0:632c9925f013	1377	int
donatien	0:632c9925f013	1378	sifnpmode(int u, int proto, enum NPmode mode)
donatien	0:632c9925f013	1379	{
donatien	0:632c9925f013	1380	LWIP_UNUSED_ARG(u);
donatien	0:632c9925f013	1381	LWIP_UNUSED_ARG(proto);
donatien	0:632c9925f013	1382	LWIP_UNUSED_ARG(mode);
donatien	0:632c9925f013	1383	return 0;
donatien	0:632c9925f013	1384	}
donatien	0:632c9925f013	1385
donatien	0:632c9925f013	1386	/*
donatien	0:632c9925f013	1387	* sifdown - Config the interface down and disable IP.
donatien	0:632c9925f013	1388	*/
donatien	0:632c9925f013	1389	int
donatien	0:632c9925f013	1390	sifdown(int pd)
donatien	0:632c9925f013	1391	{
donatien	0:632c9925f013	1392	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1393	int st = 1;
donatien	0:632c9925f013	1394
donatien	0:632c9925f013	1395	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1396	st = 0;
donatien	0:632c9925f013	1397	PPPDEBUG(LOG_WARNING, ("sifdown[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1398	} else {
donatien	0:632c9925f013	1399	pc->if_up = 0;
donatien	0:632c9925f013	1400	/* make sure the netif status callback is called */
donatien	0:632c9925f013	1401	netif_set_down(&pc->netif);
donatien	0:632c9925f013	1402	netif_remove(&pc->netif);
donatien	0:632c9925f013	1403	PPPDEBUG(LOG_DEBUG, ("sifdown: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
donatien	0:632c9925f013	1404	if (pc->linkStatusCB) {
donatien	0:632c9925f013	1405	pc->linkStatusCB(pc->linkStatusCtx, PPPERR_CONNECT, NULL);
donatien	0:632c9925f013	1406	}
donatien	0:632c9925f013	1407	}
donatien	0:632c9925f013	1408	return st;
donatien	0:632c9925f013	1409	}
donatien	0:632c9925f013	1410
donatien	0:632c9925f013	1411	/**
donatien	0:632c9925f013	1412	* sifaddr - Config the interface IP addresses and netmask.
donatien	0:632c9925f013	1413	* @param pd Interface unit ???
donatien	0:632c9925f013	1414	* @param o Our IP address ???
donatien	0:632c9925f013	1415	* @param h His IP address ???
donatien	0:632c9925f013	1416	* @param m IP subnet mask ???
donatien	0:632c9925f013	1417	* @param ns1 Primary DNS
donatien	0:632c9925f013	1418	* @param ns2 Secondary DNS
donatien	0:632c9925f013	1419	*/
donatien	0:632c9925f013	1420	int
donatien	0:632c9925f013	1421	sifaddr( int pd, u32_t o, u32_t h, u32_t m, u32_t ns1, u32_t ns2)
donatien	0:632c9925f013	1422	{
donatien	0:632c9925f013	1423	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1424	int st = 1;
donatien	0:632c9925f013	1425
donatien	0:632c9925f013	1426	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1427	st = 0;
donatien	0:632c9925f013	1428	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1429	} else {
donatien	0:632c9925f013	1430	SMEMCPY(&pc->addrs.our_ipaddr, &o, sizeof(o));
donatien	0:632c9925f013	1431	SMEMCPY(&pc->addrs.his_ipaddr, &h, sizeof(h));
donatien	0:632c9925f013	1432	SMEMCPY(&pc->addrs.netmask, &m, sizeof(m));
donatien	0:632c9925f013	1433	SMEMCPY(&pc->addrs.dns1, &ns1, sizeof(ns1));
donatien	0:632c9925f013	1434	SMEMCPY(&pc->addrs.dns2, &ns2, sizeof(ns2));
donatien	0:632c9925f013	1435	}
donatien	0:632c9925f013	1436	return st;
donatien	0:632c9925f013	1437	}
donatien	0:632c9925f013	1438
donatien	0:632c9925f013	1439	/**
donatien	0:632c9925f013	1440	* cifaddr - Clear the interface IP addresses, and delete routes
donatien	0:632c9925f013	1441	* through the interface if possible.
donatien	0:632c9925f013	1442	* @param pd Interface unit ???
donatien	0:632c9925f013	1443	* @param o Our IP address ???
donatien	0:632c9925f013	1444	* @param h IP broadcast address ???
donatien	0:632c9925f013	1445	*/
donatien	0:632c9925f013	1446	int
donatien	0:632c9925f013	1447	cifaddr( int pd, u32_t o, u32_t h)
donatien	0:632c9925f013	1448	{
donatien	0:632c9925f013	1449	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1450	int st = 1;
donatien	0:632c9925f013	1451
donatien	0:632c9925f013	1452	LWIP_UNUSED_ARG(o);
donatien	0:632c9925f013	1453	LWIP_UNUSED_ARG(h);
donatien	0:632c9925f013	1454	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1455	st = 0;
donatien	0:632c9925f013	1456	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1457	} else {
donatien	0:632c9925f013	1458	IP4_ADDR(&pc->addrs.our_ipaddr, 0,0,0,0);
donatien	0:632c9925f013	1459	IP4_ADDR(&pc->addrs.his_ipaddr, 0,0,0,0);
donatien	0:632c9925f013	1460	IP4_ADDR(&pc->addrs.netmask, 255,255,255,0);
donatien	0:632c9925f013	1461	IP4_ADDR(&pc->addrs.dns1, 0,0,0,0);
donatien	0:632c9925f013	1462	IP4_ADDR(&pc->addrs.dns2, 0,0,0,0);
donatien	0:632c9925f013	1463	}
donatien	0:632c9925f013	1464	return st;
donatien	0:632c9925f013	1465	}
donatien	0:632c9925f013	1466
donatien	0:632c9925f013	1467	/*
donatien	0:632c9925f013	1468	* sifdefaultroute - assign a default route through the address given.
donatien	0:632c9925f013	1469	*/
donatien	0:632c9925f013	1470	int
donatien	0:632c9925f013	1471	sifdefaultroute(int pd, u32_t l, u32_t g)
donatien	0:632c9925f013	1472	{
donatien	0:632c9925f013	1473	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1474	int st = 1;
donatien	0:632c9925f013	1475
donatien	0:632c9925f013	1476	LWIP_UNUSED_ARG(l);
donatien	0:632c9925f013	1477	LWIP_UNUSED_ARG(g);
donatien	0:632c9925f013	1478
donatien	0:632c9925f013	1479	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1480	st = 0;
donatien	0:632c9925f013	1481	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1482	} else {
donatien	0:632c9925f013	1483	netif_set_default(&pc->netif);
donatien	0:632c9925f013	1484	}
donatien	0:632c9925f013	1485
donatien	0:632c9925f013	1486	/* TODO: check how PPP handled the netMask, previously not set by ipSetDefault */
donatien	0:632c9925f013	1487
donatien	0:632c9925f013	1488	return st;
donatien	0:632c9925f013	1489	}
donatien	0:632c9925f013	1490
donatien	0:632c9925f013	1491	/*
donatien	0:632c9925f013	1492	* cifdefaultroute - delete a default route through the address given.
donatien	0:632c9925f013	1493	*/
donatien	0:632c9925f013	1494	int
donatien	0:632c9925f013	1495	cifdefaultroute(int pd, u32_t l, u32_t g)
donatien	0:632c9925f013	1496	{
donatien	0:632c9925f013	1497	PPPControl *pc = &pppControl[pd];
donatien	0:632c9925f013	1498	int st = 1;
donatien	0:632c9925f013	1499
donatien	0:632c9925f013	1500	LWIP_UNUSED_ARG(l);
donatien	0:632c9925f013	1501	LWIP_UNUSED_ARG(g);
donatien	0:632c9925f013	1502
donatien	0:632c9925f013	1503	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
donatien	0:632c9925f013	1504	st = 0;
donatien	0:632c9925f013	1505	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
donatien	0:632c9925f013	1506	} else {
donatien	0:632c9925f013	1507	netif_set_default(NULL);
donatien	0:632c9925f013	1508	}
donatien	0:632c9925f013	1509
donatien	0:632c9925f013	1510	return st;
donatien	0:632c9925f013	1511	}
donatien	0:632c9925f013	1512
donatien	0:632c9925f013	1513	/**********************************/
donatien	0:632c9925f013	1514	/* LOCAL FUNCTION DEFINITIONS */
donatien	0:632c9925f013	1515	/**********************************/
donatien	0:632c9925f013	1516
donatien	0:632c9925f013	1517	#if PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD
donatien	0:632c9925f013	1518	/* The main PPP process function. This implements the state machine according
donatien	0:632c9925f013	1519	* to section 4 of RFC 1661: The Point-To-Point Protocol. */
donatien	0:632c9925f013	1520	static void
donatien	0:632c9925f013	1521	pppInputThread(void *arg)
donatien	0:632c9925f013	1522	{
donatien	0:632c9925f013	1523	int count;
donatien	0:632c9925f013	1524	PPPControlRx *pcrx = arg;
donatien	0:632c9925f013	1525
donatien	0:632c9925f013	1526	while (lcp_phase[pcrx->pd] != PHASE_DEAD) {
donatien	0:632c9925f013	1527	count = sio_read(pcrx->fd, pcrx->rxbuf, PPPOS_RX_BUFSIZE);
donatien	0:632c9925f013	1528	if(count > 0) {
donatien	0:632c9925f013	1529	pppInProc(pcrx, pcrx->rxbuf, count);
donatien	0:632c9925f013	1530	} else {
donatien	0:632c9925f013	1531	/* nothing received, give other tasks a chance to run */
donatien	0:632c9925f013	1532	sys_msleep(1);
donatien	0:632c9925f013	1533	}
donatien	0:632c9925f013	1534	}
donatien	0:632c9925f013	1535	}
donatien	0:632c9925f013	1536	#endif /* PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD */
donatien	0:632c9925f013	1537
donatien	0:632c9925f013	1538	#if PPPOE_SUPPORT
donatien	0:632c9925f013	1539
donatien	0:632c9925f013	1540	void
donatien	0:632c9925f013	1541	pppOverEthernetInitFailed(int pd)
donatien	0:632c9925f013	1542	{
donatien	0:632c9925f013	1543	PPPControl* pc;
donatien	0:632c9925f013	1544
donatien	0:632c9925f013	1545	pppHup(pd);
donatien	0:632c9925f013	1546	pppStop(pd);
donatien	0:632c9925f013	1547
donatien	0:632c9925f013	1548	pc = &pppControl[pd];
donatien	0:632c9925f013	1549	pppoe_destroy(&pc->netif);
donatien	0:632c9925f013	1550	pc->openFlag = 0;
donatien	0:632c9925f013	1551
donatien	0:632c9925f013	1552	if(pc->linkStatusCB) {
donatien	0:632c9925f013	1553	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
donatien	0:632c9925f013	1554	}
donatien	0:632c9925f013	1555	}
donatien	0:632c9925f013	1556
donatien	0:632c9925f013	1557	static void
donatien	0:632c9925f013	1558	pppOverEthernetLinkStatusCB(int pd, int up)
donatien	0:632c9925f013	1559	{
donatien	0:632c9925f013	1560	if(up) {
donatien	0:632c9925f013	1561	PPPDEBUG(LOG_INFO, ("pppOverEthernetLinkStatusCB: unit %d: Connecting\n", pd));
donatien	0:632c9925f013	1562	pppStart(pd);
donatien	0:632c9925f013	1563	} else {
donatien	0:632c9925f013	1564	pppOverEthernetInitFailed(pd);
donatien	0:632c9925f013	1565	}
donatien	0:632c9925f013	1566	}
donatien	0:632c9925f013	1567	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	1568
donatien	0:632c9925f013	1569	struct pbuf *
donatien	0:632c9925f013	1570	pppSingleBuf(struct pbuf *p)
donatien	0:632c9925f013	1571	{
donatien	0:632c9925f013	1572	struct pbuf q, b;
donatien	0:632c9925f013	1573	u_char *pl;
donatien	0:632c9925f013	1574
donatien	0:632c9925f013	1575	if(p->tot_len == p->len) {
donatien	0:632c9925f013	1576	return p;
donatien	0:632c9925f013	1577	}
donatien	0:632c9925f013	1578
donatien	0:632c9925f013	1579	q = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM);
donatien	0:632c9925f013	1580	if(!q) {
donatien	0:632c9925f013	1581	PPPDEBUG(LOG_ERR,
donatien	0:632c9925f013	1582	("pppSingleBuf: unable to alloc new buf (%d)\n", p->tot_len));
donatien	0:632c9925f013	1583	return p; /* live dangerously */
donatien	0:632c9925f013	1584	}
donatien	0:632c9925f013	1585
donatien	0:632c9925f013	1586	for(b = p, pl = (u_char*) q->payload; b != NULL; b = b->next) {
donatien	0:632c9925f013	1587	MEMCPY(pl, b->payload, b->len);
donatien	0:632c9925f013	1588	pl += b->len;
donatien	0:632c9925f013	1589	}
donatien	0:632c9925f013	1590
donatien	0:632c9925f013	1591	pbuf_free(p);
donatien	0:632c9925f013	1592
donatien	0:632c9925f013	1593	return q;
donatien	0:632c9925f013	1594	}
donatien	0:632c9925f013	1595
donatien	0:632c9925f013	1596	struct pppInputHeader {
donatien	0:632c9925f013	1597	int unit;
donatien	0:632c9925f013	1598	u16_t proto;
donatien	0:632c9925f013	1599	};
donatien	0:632c9925f013	1600
donatien	0:632c9925f013	1601	/*
donatien	0:632c9925f013	1602	* Pass the processed input packet to the appropriate handler.
donatien	0:632c9925f013	1603	* This function and all handlers run in the context of the tcpip_thread
donatien	0:632c9925f013	1604	*/
donatien	0:632c9925f013	1605	static void
donatien	0:632c9925f013	1606	pppInput(void *arg)
donatien	0:632c9925f013	1607	{
donatien	0:632c9925f013	1608	struct pbuf nb = (struct pbuf )arg;
donatien	0:632c9925f013	1609	u16_t protocol;
donatien	0:632c9925f013	1610	int pd;
donatien	0:632c9925f013	1611
donatien	0:632c9925f013	1612	pd = ((struct pppInputHeader *)nb->payload)->unit;
donatien	0:632c9925f013	1613	protocol = ((struct pppInputHeader *)nb->payload)->proto;
donatien	0:632c9925f013	1614
donatien	0:632c9925f013	1615	if(pbuf_header(nb, -(int)sizeof(struct pppInputHeader))) {
donatien	0:632c9925f013	1616	LWIP_ASSERT("pbuf_header failed\n", 0);
donatien	0:632c9925f013	1617	goto drop;
donatien	0:632c9925f013	1618	}
donatien	0:632c9925f013	1619
donatien	0:632c9925f013	1620	LINK_STATS_INC(link.recv);
donatien	0:632c9925f013	1621	snmp_inc_ifinucastpkts(&pppControl[pd].netif);
donatien	0:632c9925f013	1622	snmp_add_ifinoctets(&pppControl[pd].netif, nb->tot_len);
donatien	0:632c9925f013	1623
donatien	0:632c9925f013	1624	/*
donatien	0:632c9925f013	1625	* Toss all non-LCP packets unless LCP is OPEN.
donatien	0:632c9925f013	1626	* Until we get past the authentication phase, toss all packets
donatien	0:632c9925f013	1627	* except LCP, LQR and authentication packets.
donatien	0:632c9925f013	1628	*/
donatien	0:632c9925f013	1629	if((lcp_phase[pd] <= PHASE_AUTHENTICATE) && (protocol != PPP_LCP)) {
donatien	0:632c9925f013	1630	if(!((protocol == PPP_LQR) \|\| (protocol == PPP_PAP) \|\| (protocol == PPP_CHAP)) \|\|
donatien	0:632c9925f013	1631	(lcp_phase[pd] != PHASE_AUTHENTICATE)) {
donatien	0:632c9925f013	1632	PPPDEBUG(LOG_INFO, ("pppInput: discarding proto 0x%"X16_F" in phase %d\n", protocol, lcp_phase[pd]));
donatien	0:632c9925f013	1633	goto drop;
donatien	0:632c9925f013	1634	}
donatien	0:632c9925f013	1635	}
donatien	0:632c9925f013	1636
donatien	0:632c9925f013	1637	switch(protocol) {
donatien	0:632c9925f013	1638	case PPP_VJC_COMP: /* VJ compressed TCP */
donatien	0:632c9925f013	1639	#if PPPOS_SUPPORT && VJ_SUPPORT
donatien	0:632c9925f013	1640	PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
donatien	0:632c9925f013	1641	/*
donatien	0:632c9925f013	1642	* Clip off the VJ header and prepend the rebuilt TCP/IP header and
donatien	0:632c9925f013	1643	* pass the result to IP.
donatien	0:632c9925f013	1644	*/
donatien	0:632c9925f013	1645	if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
donatien	0:632c9925f013	1646	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
donatien	0:632c9925f013	1647	return;
donatien	0:632c9925f013	1648	}
donatien	0:632c9925f013	1649	/* Something's wrong so drop it. */
donatien	0:632c9925f013	1650	PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
donatien	0:632c9925f013	1651	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1652	/* No handler for this protocol so drop the packet. */
donatien	0:632c9925f013	1653	PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d:%s\n", pd, nb->len, nb->payload));
donatien	0:632c9925f013	1654	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1655	break;
donatien	0:632c9925f013	1656
donatien	0:632c9925f013	1657	case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
donatien	0:632c9925f013	1658	#if PPPOS_SUPPORT && VJ_SUPPORT
donatien	0:632c9925f013	1659	PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
donatien	0:632c9925f013	1660	/*
donatien	0:632c9925f013	1661	* Process the TCP/IP header for VJ header compression and then pass
donatien	0:632c9925f013	1662	* the packet to IP.
donatien	0:632c9925f013	1663	*/
donatien	0:632c9925f013	1664	if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
donatien	0:632c9925f013	1665	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
donatien	0:632c9925f013	1666	return;
donatien	0:632c9925f013	1667	}
donatien	0:632c9925f013	1668	/* Something's wrong so drop it. */
donatien	0:632c9925f013	1669	PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
donatien	0:632c9925f013	1670	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1671	/* No handler for this protocol so drop the packet. */
donatien	0:632c9925f013	1672	PPPDEBUG((LOG_INFO,
donatien	0:632c9925f013	1673	"pppInput[%d]: drop VJ UnComp in %d:.*H\n",
donatien	0:632c9925f013	1674	pd, nb->len, LWIP_MIN(nb->len * 2, 40), nb->payload));
donatien	0:632c9925f013	1675	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
donatien	0:632c9925f013	1676	break;
donatien	0:632c9925f013	1677
donatien	0:632c9925f013	1678	case PPP_IP: /* Internet Protocol */
donatien	0:632c9925f013	1679	PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
donatien	0:632c9925f013	1680	if (pppControl[pd].netif.input) {
donatien	0:632c9925f013	1681	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
donatien	0:632c9925f013	1682	return;
donatien	0:632c9925f013	1683	}
donatien	0:632c9925f013	1684	break;
donatien	0:632c9925f013	1685
donatien	0:632c9925f013	1686	default: {
donatien	0:632c9925f013	1687	struct protent *protp;
donatien	0:632c9925f013	1688	int i;
donatien	0:632c9925f013	1689
donatien	0:632c9925f013	1690	/*
donatien	0:632c9925f013	1691	* Upcall the proper protocol input routine.
donatien	0:632c9925f013	1692	*/
donatien	0:632c9925f013	1693	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
donatien	0:632c9925f013	1694	if (protp->protocol == protocol && protp->enabled_flag) {
donatien	0:632c9925f013	1695	PPPDEBUG(LOG_INFO, ("pppInput[%d]: %s len=%d\n", pd, protp->name, nb->len));
donatien	0:632c9925f013	1696	nb = pppSingleBuf(nb);
donatien	0:632c9925f013	1697	(protp->input)(pd, (u_char)nb->payload, nb->len);
donatien	0:632c9925f013	1698	PPPDEBUG(LOG_DETAIL, ("pppInput[%d]: packet processed\n", pd));
donatien	0:632c9925f013	1699	goto out;
donatien	0:632c9925f013	1700	}
donatien	0:632c9925f013	1701	}
donatien	0:632c9925f013	1702
donatien	0:632c9925f013	1703	/* No handler for this protocol so reject the packet. */
donatien	0:632c9925f013	1704	PPPDEBUG(LOG_INFO, ("pppInput[%d]: rejecting unsupported proto 0x%"X16_F" len=%d\n", pd, protocol, nb->len));
donatien	0:632c9925f013	1705	if (pbuf_header(nb, sizeof(protocol))) {
donatien	0:632c9925f013	1706	LWIP_ASSERT("pbuf_header failed\n", 0);
donatien	0:632c9925f013	1707	goto drop;
donatien	0:632c9925f013	1708	}
donatien	0:632c9925f013	1709	#if BYTE_ORDER == LITTLE_ENDIAN
donatien	0:632c9925f013	1710	protocol = htons(protocol);
donatien	0:632c9925f013	1711	SMEMCPY(nb->payload, &protocol, sizeof(protocol));
donatien	0:632c9925f013	1712	#endif /* BYTE_ORDER == LITTLE_ENDIAN */
donatien	0:632c9925f013	1713	lcp_sprotrej(pd, (u_char*) nb->payload, nb->len);
donatien	0:632c9925f013	1714	}
donatien	0:632c9925f013	1715	break;
donatien	0:632c9925f013	1716	}
donatien	0:632c9925f013	1717
donatien	0:632c9925f013	1718	drop:
donatien	0:632c9925f013	1719	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	1720	snmp_inc_ifindiscards(&pppControl[pd].netif);
donatien	0:632c9925f013	1721
donatien	0:632c9925f013	1722	out:
donatien	0:632c9925f013	1723	pbuf_free(nb);
donatien	0:632c9925f013	1724	return;
donatien	0:632c9925f013	1725	}
donatien	0:632c9925f013	1726
donatien	0:632c9925f013	1727	#if PPPOS_SUPPORT
donatien	0:632c9925f013	1728	/*
donatien	0:632c9925f013	1729	* Drop the input packet.
donatien	0:632c9925f013	1730	*/
donatien	0:632c9925f013	1731	static void
donatien	0:632c9925f013	1732	pppDrop(PPPControlRx *pcrx)
donatien	0:632c9925f013	1733	{
donatien	0:632c9925f013	1734	if (pcrx->inHead != NULL) {
donatien	0:632c9925f013	1735	#if 0
donatien	0:632c9925f013	1736	PPPDEBUG(LOG_INFO, ("pppDrop: %d:%.H\n", pcrx->inHead->len, min(60, pcrx->inHead->len 2), pcrx->inHead->payload));
donatien	0:632c9925f013	1737	#endif
donatien	0:632c9925f013	1738	PPPDEBUG(LOG_INFO, ("pppDrop: pbuf len=%d, addr %p\n", pcrx->inHead->len, (void*)pcrx->inHead));
donatien	0:632c9925f013	1739	if (pcrx->inTail && (pcrx->inTail != pcrx->inHead)) {
donatien	0:632c9925f013	1740	pbuf_free(pcrx->inTail);
donatien	0:632c9925f013	1741	}
donatien	0:632c9925f013	1742	pbuf_free(pcrx->inHead);
donatien	0:632c9925f013	1743	pcrx->inHead = NULL;
donatien	0:632c9925f013	1744	pcrx->inTail = NULL;
donatien	0:632c9925f013	1745	}
donatien	0:632c9925f013	1746	#if VJ_SUPPORT
donatien	0:632c9925f013	1747	vj_uncompress_err(&pppControl[pcrx->pd].vjComp);
donatien	0:632c9925f013	1748	#endif /* VJ_SUPPORT */
donatien	0:632c9925f013	1749
donatien	0:632c9925f013	1750	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	1751	snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
donatien	0:632c9925f013	1752	}
donatien	0:632c9925f013	1753
donatien	0:632c9925f013	1754	/** Pass received raw characters to PPPoS to be decoded. This function is
donatien	0:632c9925f013	1755	* thread-safe and can be called from a dedicated RX-thread or from a main-loop.
donatien	0:632c9925f013	1756	*
donatien	0:632c9925f013	1757	* @param pd PPP descriptor index, returned by pppOpen()
donatien	0:632c9925f013	1758	* @param data received data
donatien	0:632c9925f013	1759	* @param len length of received data
donatien	0:632c9925f013	1760	*/
donatien	0:632c9925f013	1761	void
donatien	0:632c9925f013	1762	pppos_input(int pd, u_char* data, int len)
donatien	0:632c9925f013	1763	{
donatien	0:632c9925f013	1764	pppInProc(&pppControl[pd].rx, data, len);
donatien	0:632c9925f013	1765	}
donatien	0:632c9925f013	1766
donatien	0:632c9925f013	1767	/**
donatien	0:632c9925f013	1768	* Process a received octet string.
donatien	0:632c9925f013	1769	*/
donatien	0:632c9925f013	1770	static void
donatien	0:632c9925f013	1771	pppInProc(PPPControlRx pcrx, u_char s, int l)
donatien	0:632c9925f013	1772	{
donatien	0:632c9925f013	1773	struct pbuf *nextNBuf;
donatien	0:632c9925f013	1774	u_char curChar;
donatien	0:632c9925f013	1775	u_char escaped;
donatien	0:632c9925f013	1776	SYS_ARCH_DECL_PROTECT(lev);
donatien	0:632c9925f013	1777
donatien	0:632c9925f013	1778	PPPDEBUG(LOG_DEBUG, ("pppInProc[%d]: got %d bytes\n", pcrx->pd, l));
donatien	0:632c9925f013	1779	while (l-- > 0) {
donatien	0:632c9925f013	1780	curChar = *s++;
donatien	0:632c9925f013	1781
donatien	0:632c9925f013	1782	SYS_ARCH_PROTECT(lev);
donatien	0:632c9925f013	1783	escaped = ESCAPE_P(pcrx->inACCM, curChar);
donatien	0:632c9925f013	1784	SYS_ARCH_UNPROTECT(lev);
donatien	0:632c9925f013	1785	/* Handle special characters. */
donatien	0:632c9925f013	1786	if (escaped) {
donatien	0:632c9925f013	1787	/* Check for escape sequences. */
donatien	0:632c9925f013	1788	/* XXX Note that this does not handle an escaped 0x5d character which
donatien	0:632c9925f013	1789	* would appear as an escape character. Since this is an ASCII ']'
donatien	0:632c9925f013	1790	* and there is no reason that I know of to escape it, I won't complicate
donatien	0:632c9925f013	1791	* the code to handle this case. GLL */
donatien	0:632c9925f013	1792	if (curChar == PPP_ESCAPE) {
donatien	0:632c9925f013	1793	pcrx->inEscaped = 1;
donatien	0:632c9925f013	1794	/* Check for the flag character. */
donatien	0:632c9925f013	1795	} else if (curChar == PPP_FLAG) {
donatien	0:632c9925f013	1796	/* If this is just an extra flag character, ignore it. */
donatien	0:632c9925f013	1797	if (pcrx->inState <= PDADDRESS) {
donatien	0:632c9925f013	1798	/* ignore it */;
donatien	0:632c9925f013	1799	/* If we haven't received the packet header, drop what has come in. */
donatien	0:632c9925f013	1800	} else if (pcrx->inState < PDDATA) {
donatien	0:632c9925f013	1801	PPPDEBUG(LOG_WARNING,
donatien	0:632c9925f013	1802	("pppInProc[%d]: Dropping incomplete packet %d\n",
donatien	0:632c9925f013	1803	pcrx->pd, pcrx->inState));
donatien	0:632c9925f013	1804	LINK_STATS_INC(link.lenerr);
donatien	0:632c9925f013	1805	pppDrop(pcrx);
donatien	0:632c9925f013	1806	/* If the fcs is invalid, drop the packet. */
donatien	0:632c9925f013	1807	} else if (pcrx->inFCS != PPP_GOODFCS) {
donatien	0:632c9925f013	1808	PPPDEBUG(LOG_INFO,
donatien	0:632c9925f013	1809	("pppInProc[%d]: Dropping bad fcs 0x%"X16_F" proto=0x%"X16_F"\n",
donatien	0:632c9925f013	1810	pcrx->pd, pcrx->inFCS, pcrx->inProtocol));
donatien	0:632c9925f013	1811	/* Note: If you get lots of these, check for UART frame errors or try different baud rate */
donatien	0:632c9925f013	1812	LINK_STATS_INC(link.chkerr);
donatien	0:632c9925f013	1813	pppDrop(pcrx);
donatien	0:632c9925f013	1814	/* Otherwise it's a good packet so pass it on. */
donatien	0:632c9925f013	1815	} else {
donatien	0:632c9925f013	1816	/* Trim off the checksum. */
donatien	0:632c9925f013	1817	if(pcrx->inTail->len >= 2) {
donatien	0:632c9925f013	1818	pcrx->inTail->len -= 2;
donatien	0:632c9925f013	1819
donatien	0:632c9925f013	1820	pcrx->inTail->tot_len = pcrx->inTail->len;
donatien	0:632c9925f013	1821	if (pcrx->inTail != pcrx->inHead) {
donatien	0:632c9925f013	1822	pbuf_cat(pcrx->inHead, pcrx->inTail);
donatien	0:632c9925f013	1823	}
donatien	0:632c9925f013	1824	} else {
donatien	0:632c9925f013	1825	pcrx->inTail->tot_len = pcrx->inTail->len;
donatien	0:632c9925f013	1826	if (pcrx->inTail != pcrx->inHead) {
donatien	0:632c9925f013	1827	pbuf_cat(pcrx->inHead, pcrx->inTail);
donatien	0:632c9925f013	1828	}
donatien	0:632c9925f013	1829
donatien	0:632c9925f013	1830	pbuf_realloc(pcrx->inHead, pcrx->inHead->tot_len - 2);
donatien	0:632c9925f013	1831	}
donatien	0:632c9925f013	1832
donatien	0:632c9925f013	1833	/* Dispatch the packet thereby consuming it. */
donatien	0:632c9925f013	1834	#if PPP_INPROC_MULTITHREADED
donatien	0:632c9925f013	1835	if(tcpip_callback_with_block(pppInput, pcrx->inHead, 0) != ERR_OK) {
donatien	0:632c9925f013	1836	PPPDEBUG(LOG_ERR, ("pppInProc[%d]: tcpip_callback() failed, dropping packet\n", pcrx->pd));
donatien	0:632c9925f013	1837	pbuf_free(pcrx->inHead);
donatien	0:632c9925f013	1838	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	1839	snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
donatien	0:632c9925f013	1840	}
donatien	0:632c9925f013	1841	#else /* PPP_INPROC_MULTITHREADED */
donatien	0:632c9925f013	1842	pppInput(pcrx->inHead);
donatien	0:632c9925f013	1843	#endif /* PPP_INPROC_MULTITHREADED */
donatien	0:632c9925f013	1844	pcrx->inHead = NULL;
donatien	0:632c9925f013	1845	pcrx->inTail = NULL;
donatien	0:632c9925f013	1846	}
donatien	0:632c9925f013	1847
donatien	0:632c9925f013	1848	/* Prepare for a new packet. */
donatien	0:632c9925f013	1849	pcrx->inFCS = PPP_INITFCS;
donatien	0:632c9925f013	1850	pcrx->inState = PDADDRESS;
donatien	0:632c9925f013	1851	pcrx->inEscaped = 0;
donatien	0:632c9925f013	1852	/* Other characters are usually control characters that may have
donatien	0:632c9925f013	1853	* been inserted by the physical layer so here we just drop them. */
donatien	0:632c9925f013	1854	} else {
donatien	0:632c9925f013	1855	PPPDEBUG(LOG_WARNING,
donatien	0:632c9925f013	1856	("pppInProc[%d]: Dropping ACCM char <%d>\n", pcrx->pd, curChar));
donatien	0:632c9925f013	1857	}
donatien	0:632c9925f013	1858	/* Process other characters. */
donatien	0:632c9925f013	1859	} else {
donatien	0:632c9925f013	1860	/* Unencode escaped characters. */
donatien	0:632c9925f013	1861	if (pcrx->inEscaped) {
donatien	0:632c9925f013	1862	pcrx->inEscaped = 0;
donatien	0:632c9925f013	1863	curChar ^= PPP_TRANS;
donatien	0:632c9925f013	1864	}
donatien	0:632c9925f013	1865
donatien	0:632c9925f013	1866	/* Process character relative to current state. */
donatien	0:632c9925f013	1867	switch(pcrx->inState) {
donatien	0:632c9925f013	1868	case PDIDLE: /* Idle state - waiting. */
donatien	0:632c9925f013	1869	/* Drop the character if it's not 0xff
donatien	0:632c9925f013	1870	* we would have processed a flag character above. */
donatien	0:632c9925f013	1871	if (curChar != PPP_ALLSTATIONS) {
donatien	0:632c9925f013	1872	break;
donatien	0:632c9925f013	1873	}
donatien	0:632c9925f013	1874
donatien	0:632c9925f013	1875	/* Fall through */
donatien	0:632c9925f013	1876	case PDSTART: /* Process start flag. */
donatien	0:632c9925f013	1877	/* Prepare for a new packet. */
donatien	0:632c9925f013	1878	pcrx->inFCS = PPP_INITFCS;
donatien	0:632c9925f013	1879
donatien	0:632c9925f013	1880	/* Fall through */
donatien	0:632c9925f013	1881	case PDADDRESS: /* Process address field. */
donatien	0:632c9925f013	1882	if (curChar == PPP_ALLSTATIONS) {
donatien	0:632c9925f013	1883	pcrx->inState = PDCONTROL;
donatien	0:632c9925f013	1884	break;
donatien	0:632c9925f013	1885	}
donatien	0:632c9925f013	1886	/* Else assume compressed address and control fields so
donatien	0:632c9925f013	1887	* fall through to get the protocol... */
donatien	0:632c9925f013	1888	case PDCONTROL: /* Process control field. */
donatien	0:632c9925f013	1889	/* If we don't get a valid control code, restart. */
donatien	0:632c9925f013	1890	if (curChar == PPP_UI) {
donatien	0:632c9925f013	1891	pcrx->inState = PDPROTOCOL1;
donatien	0:632c9925f013	1892	break;
donatien	0:632c9925f013	1893	}
donatien	0:632c9925f013	1894	#if 0
donatien	0:632c9925f013	1895	else {
donatien	0:632c9925f013	1896	PPPDEBUG((LOG_WARNING,
donatien	0:632c9925f013	1897	"pppInProc[%d]: Invalid control <%d>\n", pcrx->pd, curChar));
donatien	0:632c9925f013	1898	pcrx->inState = PDSTART;
donatien	0:632c9925f013	1899	}
donatien	0:632c9925f013	1900	#endif
donatien	0:632c9925f013	1901	case PDPROTOCOL1: /* Process protocol field 1. */
donatien	0:632c9925f013	1902	/* If the lower bit is set, this is the end of the protocol
donatien	0:632c9925f013	1903	* field. */
donatien	0:632c9925f013	1904	if (curChar & 1) {
donatien	0:632c9925f013	1905	pcrx->inProtocol = curChar;
donatien	0:632c9925f013	1906	pcrx->inState = PDDATA;
donatien	0:632c9925f013	1907	} else {
donatien	0:632c9925f013	1908	pcrx->inProtocol = (u_int)curChar << 8;
donatien	0:632c9925f013	1909	pcrx->inState = PDPROTOCOL2;
donatien	0:632c9925f013	1910	}
donatien	0:632c9925f013	1911	break;
donatien	0:632c9925f013	1912	case PDPROTOCOL2: /* Process protocol field 2. */
donatien	0:632c9925f013	1913	pcrx->inProtocol \|= curChar;
donatien	0:632c9925f013	1914	pcrx->inState = PDDATA;
donatien	0:632c9925f013	1915	break;
donatien	0:632c9925f013	1916	case PDDATA: /* Process data byte. */
donatien	0:632c9925f013	1917	/* Make space to receive processed data. */
donatien	0:632c9925f013	1918	if (pcrx->inTail == NULL \|\| pcrx->inTail->len == PBUF_POOL_BUFSIZE) {
donatien	0:632c9925f013	1919	if(pcrx->inTail) {
donatien	0:632c9925f013	1920	pcrx->inTail->tot_len = pcrx->inTail->len;
donatien	0:632c9925f013	1921	if (pcrx->inTail != pcrx->inHead) {
donatien	0:632c9925f013	1922	pbuf_cat(pcrx->inHead, pcrx->inTail);
donatien	0:632c9925f013	1923	}
donatien	0:632c9925f013	1924	}
donatien	0:632c9925f013	1925	/* If we haven't started a packet, we need a packet header. */
donatien	0:632c9925f013	1926	nextNBuf = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
donatien	0:632c9925f013	1927	if (nextNBuf == NULL) {
donatien	0:632c9925f013	1928	/* No free buffers. Drop the input packet and let the
donatien	0:632c9925f013	1929	* higher layers deal with it. Continue processing
donatien	0:632c9925f013	1930	* the received pbuf chain in case a new packet starts. */
donatien	0:632c9925f013	1931	PPPDEBUG(LOG_ERR, ("pppInProc[%d]: NO FREE MBUFS!\n", pcrx->pd));
donatien	0:632c9925f013	1932	LINK_STATS_INC(link.memerr);
donatien	0:632c9925f013	1933	pppDrop(pcrx);
donatien	0:632c9925f013	1934	pcrx->inState = PDSTART; /* Wait for flag sequence. */
donatien	0:632c9925f013	1935	break;
donatien	0:632c9925f013	1936	}
donatien	0:632c9925f013	1937	if (pcrx->inHead == NULL) {
donatien	0:632c9925f013	1938	struct pppInputHeader pih = (struct pppInputHeader) nextNBuf->payload;
donatien	0:632c9925f013	1939
donatien	0:632c9925f013	1940	pih->unit = pcrx->pd;
donatien	0:632c9925f013	1941	pih->proto = pcrx->inProtocol;
donatien	0:632c9925f013	1942
donatien	0:632c9925f013	1943	nextNBuf->len += sizeof(*pih);
donatien	0:632c9925f013	1944
donatien	0:632c9925f013	1945	pcrx->inHead = nextNBuf;
donatien	0:632c9925f013	1946	}
donatien	0:632c9925f013	1947	pcrx->inTail = nextNBuf;
donatien	0:632c9925f013	1948	}
donatien	0:632c9925f013	1949	/* Load character into buffer. */
donatien	0:632c9925f013	1950	((u_char*)pcrx->inTail->payload)[pcrx->inTail->len++] = curChar;
donatien	0:632c9925f013	1951	break;
donatien	0:632c9925f013	1952	}
donatien	0:632c9925f013	1953
donatien	0:632c9925f013	1954	/* update the frame check sequence number. */
donatien	0:632c9925f013	1955	pcrx->inFCS = PPP_FCS(pcrx->inFCS, curChar);
donatien	0:632c9925f013	1956	}
donatien	0:632c9925f013	1957	} /* while (l-- > 0), all bytes processed */
donatien	0:632c9925f013	1958
donatien	0:632c9925f013	1959	avRandomize();
donatien	0:632c9925f013	1960	}
donatien	0:632c9925f013	1961	#endif /* PPPOS_SUPPORT */
donatien	0:632c9925f013	1962
donatien	0:632c9925f013	1963	#if PPPOE_SUPPORT
donatien	0:632c9925f013	1964	void
donatien	0:632c9925f013	1965	pppInProcOverEthernet(int pd, struct pbuf *pb)
donatien	0:632c9925f013	1966	{
donatien	0:632c9925f013	1967	struct pppInputHeader *pih;
donatien	0:632c9925f013	1968	u16_t inProtocol;
donatien	0:632c9925f013	1969
donatien	0:632c9925f013	1970	if(pb->len < sizeof(inProtocol)) {
donatien	0:632c9925f013	1971	PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: too small for protocol field\n"));
donatien	0:632c9925f013	1972	goto drop;
donatien	0:632c9925f013	1973	}
donatien	0:632c9925f013	1974
donatien	0:632c9925f013	1975	inProtocol = (((u8_t )pb->payload)[0] << 8) \| ((u8_t)pb->payload)[1];
donatien	0:632c9925f013	1976
donatien	0:632c9925f013	1977	/* make room for pppInputHeader - should not fail */
donatien	0:632c9925f013	1978	if (pbuf_header(pb, sizeof(*pih) - sizeof(inProtocol)) != 0) {
donatien	0:632c9925f013	1979	PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: could not allocate room for header\n"));
donatien	0:632c9925f013	1980	goto drop;
donatien	0:632c9925f013	1981	}
donatien	0:632c9925f013	1982
donatien	0:632c9925f013	1983	pih = pb->payload;
donatien	0:632c9925f013	1984
donatien	0:632c9925f013	1985	pih->unit = pd;
donatien	0:632c9925f013	1986	pih->proto = inProtocol;
donatien	0:632c9925f013	1987
donatien	0:632c9925f013	1988	/* Dispatch the packet thereby consuming it. */
donatien	0:632c9925f013	1989	pppInput(pb);
donatien	0:632c9925f013	1990	return;
donatien	0:632c9925f013	1991
donatien	0:632c9925f013	1992	drop:
donatien	0:632c9925f013	1993	LINK_STATS_INC(link.drop);
donatien	0:632c9925f013	1994	snmp_inc_ifindiscards(&pppControl[pd].netif);
donatien	0:632c9925f013	1995	pbuf_free(pb);
donatien	0:632c9925f013	1996	return;
donatien	0:632c9925f013	1997	}
donatien	0:632c9925f013	1998	#endif /* PPPOE_SUPPORT */
donatien	0:632c9925f013	1999
donatien	0:632c9925f013	2000	#if LWIP_NETIF_STATUS_CALLBACK
donatien	0:632c9925f013	2001	/** Set the status callback of a PPP's netif
donatien	0:632c9925f013	2002	*
donatien	0:632c9925f013	2003	* @param pd The PPP descriptor returned by pppOpen()
donatien	0:632c9925f013	2004	* @param status_callback pointer to the status callback function
donatien	0:632c9925f013	2005	*
donatien	0:632c9925f013	2006	* @see netif_set_status_callback
donatien	0:632c9925f013	2007	*/
donatien	0:632c9925f013	2008	void
donatien	0:632c9925f013	2009	ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback)
donatien	0:632c9925f013	2010	{
donatien	0:632c9925f013	2011	netif_set_status_callback(&pppControl[pd].netif, status_callback);
donatien	0:632c9925f013	2012	}
donatien	0:632c9925f013	2013	#endif /* LWIP_NETIF_STATUS_CALLBACK */
donatien	0:632c9925f013	2014
donatien	0:632c9925f013	2015	#if LWIP_NETIF_LINK_CALLBACK
donatien	0:632c9925f013	2016	/** Set the link callback of a PPP's netif
donatien	0:632c9925f013	2017	*
donatien	0:632c9925f013	2018	* @param pd The PPP descriptor returned by pppOpen()
donatien	0:632c9925f013	2019	* @param link_callback pointer to the link callback function
donatien	0:632c9925f013	2020	*
donatien	0:632c9925f013	2021	* @see netif_set_link_callback
donatien	0:632c9925f013	2022	*/
donatien	0:632c9925f013	2023	void
donatien	0:632c9925f013	2024	ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback)
donatien	0:632c9925f013	2025	{
donatien	0:632c9925f013	2026	netif_set_link_callback(&pppControl[pd].netif, link_callback);
donatien	0:632c9925f013	2027	}
donatien	0:632c9925f013	2028	#endif /* LWIP_NETIF_LINK_CALLBACK */
donatien	0:632c9925f013	2029
donatien	0:632c9925f013	2030	#endif /* PPP_SUPPORT */

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Type:	Library
Created:	31 Dec 2013
Imports:	1
Forks:	0
Commits:	13
Dependents:	1
Dependencies:	0
Followers:	1

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lwip/netif/ppp/ppp.c@0:632c9925f013, 2010-06-11 (annotated)

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