BF_Websocket

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Brandon Fictorie / Mbed 2 deprecated BF_Websocket

NetServices/lwip/netif/ppp/ppp.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

Committer:: bfictorie
Date:: Sun Mar 25 17:26:30 2012 +0000
Revision:: 0:8cdad1c73e8e

Who changed what in which revision?

User	Revision	Line number	New contents of line
bfictorie	0:8cdad1c73e8e	1	/*****************************************************************************
bfictorie	0:8cdad1c73e8e	2	* ppp.c - Network Point to Point Protocol program file.
bfictorie	0:8cdad1c73e8e	3	*
bfictorie	0:8cdad1c73e8e	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
bfictorie	0:8cdad1c73e8e	5	* portions Copyright (c) 1997 by Global Election Systems Inc.
bfictorie	0:8cdad1c73e8e	6	*
bfictorie	0:8cdad1c73e8e	7	* The authors hereby grant permission to use, copy, modify, distribute,
bfictorie	0:8cdad1c73e8e	8	* and license this software and its documentation for any purpose, provided
bfictorie	0:8cdad1c73e8e	9	* that existing copyright notices are retained in all copies and that this
bfictorie	0:8cdad1c73e8e	10	* notice and the following disclaimer are included verbatim in any
bfictorie	0:8cdad1c73e8e	11	* distributions. No written agreement, license, or royalty fee is required
bfictorie	0:8cdad1c73e8e	12	* for any of the authorized uses.
bfictorie	0:8cdad1c73e8e	13	*
bfictorie	0:8cdad1c73e8e	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
bfictorie	0:8cdad1c73e8e	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
bfictorie	0:8cdad1c73e8e	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
bfictorie	0:8cdad1c73e8e	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
bfictorie	0:8cdad1c73e8e	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
bfictorie	0:8cdad1c73e8e	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
bfictorie	0:8cdad1c73e8e	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
bfictorie	0:8cdad1c73e8e	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
bfictorie	0:8cdad1c73e8e	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
bfictorie	0:8cdad1c73e8e	24	*
bfictorie	0:8cdad1c73e8e	25	******************************************************************************
bfictorie	0:8cdad1c73e8e	26	* REVISION HISTORY
bfictorie	0:8cdad1c73e8e	27	*
bfictorie	0:8cdad1c73e8e	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
bfictorie	0:8cdad1c73e8e	29	* Ported to lwIP.
bfictorie	0:8cdad1c73e8e	30	* 97-11-05 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
bfictorie	0:8cdad1c73e8e	31	* Original.
bfictorie	0:8cdad1c73e8e	32	*****************************************************************************/
bfictorie	0:8cdad1c73e8e	33
bfictorie	0:8cdad1c73e8e	34	/*
bfictorie	0:8cdad1c73e8e	35	* ppp_defs.h - PPP definitions.
bfictorie	0:8cdad1c73e8e	36	*
bfictorie	0:8cdad1c73e8e	37	* if_pppvar.h - private structures and declarations for PPP.
bfictorie	0:8cdad1c73e8e	38	*
bfictorie	0:8cdad1c73e8e	39	* Copyright (c) 1994 The Australian National University.
bfictorie	0:8cdad1c73e8e	40	* All rights reserved.
bfictorie	0:8cdad1c73e8e	41	*
bfictorie	0:8cdad1c73e8e	42	* Permission to use, copy, modify, and distribute this software and its
bfictorie	0:8cdad1c73e8e	43	* documentation is hereby granted, provided that the above copyright
bfictorie	0:8cdad1c73e8e	44	* notice appears in all copies. This software is provided without any
bfictorie	0:8cdad1c73e8e	45	* warranty, express or implied. The Australian National University
bfictorie	0:8cdad1c73e8e	46	* makes no representations about the suitability of this software for
bfictorie	0:8cdad1c73e8e	47	* any purpose.
bfictorie	0:8cdad1c73e8e	48	*
bfictorie	0:8cdad1c73e8e	49	* IN NO EVENT SHALL THE AUSTRALIAN NATIONAL UNIVERSITY BE LIABLE TO ANY
bfictorie	0:8cdad1c73e8e	50	* PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
bfictorie	0:8cdad1c73e8e	51	* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
bfictorie	0:8cdad1c73e8e	52	* THE AUSTRALIAN NATIONAL UNIVERSITY HAVE BEEN ADVISED OF THE POSSIBILITY
bfictorie	0:8cdad1c73e8e	53	* OF SUCH DAMAGE.
bfictorie	0:8cdad1c73e8e	54	*
bfictorie	0:8cdad1c73e8e	55	* THE AUSTRALIAN NATIONAL UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
bfictorie	0:8cdad1c73e8e	56	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
bfictorie	0:8cdad1c73e8e	57	* AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
bfictorie	0:8cdad1c73e8e	58	* ON AN "AS IS" BASIS, AND THE AUSTRALIAN NATIONAL UNIVERSITY HAS NO
bfictorie	0:8cdad1c73e8e	59	* OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS,
bfictorie	0:8cdad1c73e8e	60	* OR MODIFICATIONS.
bfictorie	0:8cdad1c73e8e	61	*/
bfictorie	0:8cdad1c73e8e	62
bfictorie	0:8cdad1c73e8e	63	/*
bfictorie	0:8cdad1c73e8e	64	* if_ppp.h - Point-to-Point Protocol definitions.
bfictorie	0:8cdad1c73e8e	65	*
bfictorie	0:8cdad1c73e8e	66	* Copyright (c) 1989 Carnegie Mellon University.
bfictorie	0:8cdad1c73e8e	67	* All rights reserved.
bfictorie	0:8cdad1c73e8e	68	*
bfictorie	0:8cdad1c73e8e	69	* Redistribution and use in source and binary forms are permitted
bfictorie	0:8cdad1c73e8e	70	* provided that the above copyright notice and this paragraph are
bfictorie	0:8cdad1c73e8e	71	* duplicated in all such forms and that any documentation,
bfictorie	0:8cdad1c73e8e	72	* advertising materials, and other materials related to such
bfictorie	0:8cdad1c73e8e	73	* distribution and use acknowledge that the software was developed
bfictorie	0:8cdad1c73e8e	74	* by Carnegie Mellon University. The name of the
bfictorie	0:8cdad1c73e8e	75	* University may not be used to endorse or promote products derived
bfictorie	0:8cdad1c73e8e	76	* from this software without specific prior written permission.
bfictorie	0:8cdad1c73e8e	77	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	78	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
bfictorie	0:8cdad1c73e8e	79	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
bfictorie	0:8cdad1c73e8e	80	*/
bfictorie	0:8cdad1c73e8e	81
bfictorie	0:8cdad1c73e8e	82	#include "lwip/opt.h"
bfictorie	0:8cdad1c73e8e	83
bfictorie	0:8cdad1c73e8e	84	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
bfictorie	0:8cdad1c73e8e	85
bfictorie	0:8cdad1c73e8e	86	#include "lwip/ip.h" /* for ip_input() */
bfictorie	0:8cdad1c73e8e	87
bfictorie	0:8cdad1c73e8e	88	#include "ppp.h"
bfictorie	0:8cdad1c73e8e	89	#include "pppdebug.h"
bfictorie	0:8cdad1c73e8e	90
bfictorie	0:8cdad1c73e8e	91	#include "randm.h"
bfictorie	0:8cdad1c73e8e	92	#include "fsm.h"
bfictorie	0:8cdad1c73e8e	93	#if PAP_SUPPORT
bfictorie	0:8cdad1c73e8e	94	#include "pap.h"
bfictorie	0:8cdad1c73e8e	95	#endif /* PAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	96	#if CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	97	#include "chap.h"
bfictorie	0:8cdad1c73e8e	98	#endif /* CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	99	#include "ipcp.h"
bfictorie	0:8cdad1c73e8e	100	#include "lcp.h"
bfictorie	0:8cdad1c73e8e	101	#include "magic.h"
bfictorie	0:8cdad1c73e8e	102	#include "auth.h"
bfictorie	0:8cdad1c73e8e	103	#if VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	104	#include "vj.h"
bfictorie	0:8cdad1c73e8e	105	#endif /* VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	106	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	107	#include "netif/ppp_oe.h"
bfictorie	0:8cdad1c73e8e	108	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	109
bfictorie	0:8cdad1c73e8e	110	#include "lwip/tcpip.h"
bfictorie	0:8cdad1c73e8e	111	#include "lwip/api.h"
bfictorie	0:8cdad1c73e8e	112	#include "lwip/snmp.h"
bfictorie	0:8cdad1c73e8e	113
bfictorie	0:8cdad1c73e8e	114	#include <string.h>
bfictorie	0:8cdad1c73e8e	115
bfictorie	0:8cdad1c73e8e	116	/*************************/
bfictorie	0:8cdad1c73e8e	117	/* LOCAL DEFINITIONS */
bfictorie	0:8cdad1c73e8e	118	/*************************/
bfictorie	0:8cdad1c73e8e	119
bfictorie	0:8cdad1c73e8e	120	/** PPP_INPROC_MULTITHREADED==1 call pppInput using tcpip_callback().
bfictorie	0:8cdad1c73e8e	121	* Set this to 0 if pppInProc is called inside tcpip_thread or with NO_SYS==1.
bfictorie	0:8cdad1c73e8e	122	* Default is 1 for NO_SYS==0 (multithreaded) and 0 for NO_SYS==1 (single-threaded).
bfictorie	0:8cdad1c73e8e	123	*/
bfictorie	0:8cdad1c73e8e	124	#ifndef PPP_INPROC_MULTITHREADED
bfictorie	0:8cdad1c73e8e	125	#define PPP_INPROC_MULTITHREADED (NO_SYS==0)
bfictorie	0:8cdad1c73e8e	126	#endif
bfictorie	0:8cdad1c73e8e	127
bfictorie	0:8cdad1c73e8e	128	/** PPP_INPROC_OWNTHREAD==1: start a dedicated RX thread per PPP session.
bfictorie	0:8cdad1c73e8e	129	* Default is 0: call pppos_input() for received raw characters, charcater
bfictorie	0:8cdad1c73e8e	130	* reception is up to the port */
bfictorie	0:8cdad1c73e8e	131	#ifndef PPP_INPROC_OWNTHREAD
bfictorie	0:8cdad1c73e8e	132	#define PPP_INPROC_OWNTHREAD PPP_INPROC_MULTITHREADED
bfictorie	0:8cdad1c73e8e	133	#endif
bfictorie	0:8cdad1c73e8e	134
bfictorie	0:8cdad1c73e8e	135	#if PPP_INPROC_OWNTHREAD && !PPP_INPROC_MULTITHREADED
bfictorie	0:8cdad1c73e8e	136	#error "PPP_INPROC_OWNTHREAD needs PPP_INPROC_MULTITHREADED==1"
bfictorie	0:8cdad1c73e8e	137	#endif
bfictorie	0:8cdad1c73e8e	138
bfictorie	0:8cdad1c73e8e	139	/*
bfictorie	0:8cdad1c73e8e	140	* The basic PPP frame.
bfictorie	0:8cdad1c73e8e	141	*/
bfictorie	0:8cdad1c73e8e	142	#define PPP_ADDRESS(p) (((u_char *)(p))[0])
bfictorie	0:8cdad1c73e8e	143	#define PPP_CONTROL(p) (((u_char *)(p))[1])
bfictorie	0:8cdad1c73e8e	144	#define PPP_PROTOCOL(p) ((((u_char )(p))[2] << 8) + ((u_char )(p))[3])
bfictorie	0:8cdad1c73e8e	145
bfictorie	0:8cdad1c73e8e	146	/* PPP packet parser states. Current state indicates operation yet to be
bfictorie	0:8cdad1c73e8e	147	* completed. */
bfictorie	0:8cdad1c73e8e	148	typedef enum {
bfictorie	0:8cdad1c73e8e	149	PDIDLE = 0, /* Idle state - waiting. */
bfictorie	0:8cdad1c73e8e	150	PDSTART, /* Process start flag. */
bfictorie	0:8cdad1c73e8e	151	PDADDRESS, /* Process address field. */
bfictorie	0:8cdad1c73e8e	152	PDCONTROL, /* Process control field. */
bfictorie	0:8cdad1c73e8e	153	PDPROTOCOL1, /* Process protocol field 1. */
bfictorie	0:8cdad1c73e8e	154	PDPROTOCOL2, /* Process protocol field 2. */
bfictorie	0:8cdad1c73e8e	155	PDDATA /* Process data byte. */
bfictorie	0:8cdad1c73e8e	156	} PPPDevStates;
bfictorie	0:8cdad1c73e8e	157
bfictorie	0:8cdad1c73e8e	158	#define ESCAPE_P(accm, c) ((accm)[(c) >> 3] & pppACCMMask[c & 0x07])
bfictorie	0:8cdad1c73e8e	159
bfictorie	0:8cdad1c73e8e	160	/************************/
bfictorie	0:8cdad1c73e8e	161	/* LOCAL DATA TYPES */
bfictorie	0:8cdad1c73e8e	162	/************************/
bfictorie	0:8cdad1c73e8e	163
bfictorie	0:8cdad1c73e8e	164	/** RX buffer size: this may be configured smaller! */
bfictorie	0:8cdad1c73e8e	165	#ifndef PPPOS_RX_BUFSIZE
bfictorie	0:8cdad1c73e8e	166	#define PPPOS_RX_BUFSIZE (PPP_MRU + PPP_HDRLEN)
bfictorie	0:8cdad1c73e8e	167	#endif
bfictorie	0:8cdad1c73e8e	168
bfictorie	0:8cdad1c73e8e	169	typedef struct PPPControlRx_s {
bfictorie	0:8cdad1c73e8e	170	/** unit number / ppp descriptor */
bfictorie	0:8cdad1c73e8e	171	int pd;
bfictorie	0:8cdad1c73e8e	172	/** the rx file descriptor */
bfictorie	0:8cdad1c73e8e	173	sio_fd_t fd;
bfictorie	0:8cdad1c73e8e	174	/** receive buffer - encoded data is stored here */
bfictorie	0:8cdad1c73e8e	175	u_char rxbuf[PPPOS_RX_BUFSIZE];
bfictorie	0:8cdad1c73e8e	176
bfictorie	0:8cdad1c73e8e	177	/* The input packet. */
bfictorie	0:8cdad1c73e8e	178	struct pbuf inHead, inTail;
bfictorie	0:8cdad1c73e8e	179
bfictorie	0:8cdad1c73e8e	180	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	181	u16_t inProtocol; /* The input protocol code. */
bfictorie	0:8cdad1c73e8e	182	u16_t inFCS; /* Input Frame Check Sequence value. */
bfictorie	0:8cdad1c73e8e	183	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	184	PPPDevStates inState; /* The input process state. */
bfictorie	0:8cdad1c73e8e	185	char inEscaped; /* Escape next character. */
bfictorie	0:8cdad1c73e8e	186	ext_accm inACCM; /* Async-Ctl-Char-Map for input. */
bfictorie	0:8cdad1c73e8e	187	} PPPControlRx;
bfictorie	0:8cdad1c73e8e	188
bfictorie	0:8cdad1c73e8e	189	/*
bfictorie	0:8cdad1c73e8e	190	* PPP interface control block.
bfictorie	0:8cdad1c73e8e	191	*/
bfictorie	0:8cdad1c73e8e	192	typedef struct PPPControl_s {
bfictorie	0:8cdad1c73e8e	193	PPPControlRx rx;
bfictorie	0:8cdad1c73e8e	194	char openFlag; /* True when in use. */
bfictorie	0:8cdad1c73e8e	195	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	196	struct netif *ethif;
bfictorie	0:8cdad1c73e8e	197	struct pppoe_softc *pppoe_sc;
bfictorie	0:8cdad1c73e8e	198	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	199	int if_up; /* True when the interface is up. */
bfictorie	0:8cdad1c73e8e	200	int errCode; /* Code indicating why interface is down. */
bfictorie	0:8cdad1c73e8e	201	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	202	sio_fd_t fd; /* File device ID of port. */
bfictorie	0:8cdad1c73e8e	203	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	204	u16_t mtu; /* Peer's mru */
bfictorie	0:8cdad1c73e8e	205	int pcomp; /* Does peer accept protocol compression? */
bfictorie	0:8cdad1c73e8e	206	int accomp; /* Does peer accept addr/ctl compression? */
bfictorie	0:8cdad1c73e8e	207	u_long lastXMit; /* Time of last transmission. */
bfictorie	0:8cdad1c73e8e	208	ext_accm outACCM; /* Async-Ctl-Char-Map for output. */
bfictorie	0:8cdad1c73e8e	209	#if PPPOS_SUPPORT && VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	210	int vjEnabled; /* Flag indicating VJ compression enabled. */
bfictorie	0:8cdad1c73e8e	211	struct vjcompress vjComp; /* Van Jacobson compression header. */
bfictorie	0:8cdad1c73e8e	212	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	213
bfictorie	0:8cdad1c73e8e	214	struct netif netif;
bfictorie	0:8cdad1c73e8e	215
bfictorie	0:8cdad1c73e8e	216	struct ppp_addrs addrs;
bfictorie	0:8cdad1c73e8e	217
bfictorie	0:8cdad1c73e8e	218	void (linkStatusCB)(void ctx, int errCode, void *arg);
bfictorie	0:8cdad1c73e8e	219	void *linkStatusCtx;
bfictorie	0:8cdad1c73e8e	220
bfictorie	0:8cdad1c73e8e	221	} PPPControl;
bfictorie	0:8cdad1c73e8e	222
bfictorie	0:8cdad1c73e8e	223
bfictorie	0:8cdad1c73e8e	224	/*
bfictorie	0:8cdad1c73e8e	225	* Ioctl definitions.
bfictorie	0:8cdad1c73e8e	226	*/
bfictorie	0:8cdad1c73e8e	227
bfictorie	0:8cdad1c73e8e	228	struct npioctl {
bfictorie	0:8cdad1c73e8e	229	int protocol; /* PPP procotol, e.g. PPP_IP */
bfictorie	0:8cdad1c73e8e	230	enum NPmode mode;
bfictorie	0:8cdad1c73e8e	231	};
bfictorie	0:8cdad1c73e8e	232
bfictorie	0:8cdad1c73e8e	233
bfictorie	0:8cdad1c73e8e	234
bfictorie	0:8cdad1c73e8e	235	/***********************************/
bfictorie	0:8cdad1c73e8e	236	/* LOCAL FUNCTION DECLARATIONS */
bfictorie	0:8cdad1c73e8e	237	/***********************************/
bfictorie	0:8cdad1c73e8e	238	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	239	#if PPP_INPROC_OWNTHREAD
bfictorie	0:8cdad1c73e8e	240	static void pppInputThread(void *arg);
bfictorie	0:8cdad1c73e8e	241	#endif /* PPP_INPROC_OWNTHREAD */
bfictorie	0:8cdad1c73e8e	242	static void pppDrop(PPPControlRx *pcrx);
bfictorie	0:8cdad1c73e8e	243	static void pppInProc(PPPControlRx pcrx, u_char s, int l);
bfictorie	0:8cdad1c73e8e	244	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	245
bfictorie	0:8cdad1c73e8e	246
bfictorie	0:8cdad1c73e8e	247	/******************************/
bfictorie	0:8cdad1c73e8e	248	/* PUBLIC DATA STRUCTURES */
bfictorie	0:8cdad1c73e8e	249	/******************************/
bfictorie	0:8cdad1c73e8e	250	u_long subnetMask;
bfictorie	0:8cdad1c73e8e	251
bfictorie	0:8cdad1c73e8e	252	static PPPControl pppControl[NUM_PPP] MEM_POSITION; /* The PPP interface control blocks. */
bfictorie	0:8cdad1c73e8e	253
bfictorie	0:8cdad1c73e8e	254	/*
bfictorie	0:8cdad1c73e8e	255	* PPP Data Link Layer "protocol" table.
bfictorie	0:8cdad1c73e8e	256	* One entry per supported protocol.
bfictorie	0:8cdad1c73e8e	257	* The last entry must be NULL.
bfictorie	0:8cdad1c73e8e	258	*/
bfictorie	0:8cdad1c73e8e	259	struct protent *ppp_protocols[] = {
bfictorie	0:8cdad1c73e8e	260	&lcp_protent,
bfictorie	0:8cdad1c73e8e	261	#if PAP_SUPPORT
bfictorie	0:8cdad1c73e8e	262	&pap_protent,
bfictorie	0:8cdad1c73e8e	263	#endif /* PAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	264	#if CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	265	&chap_protent,
bfictorie	0:8cdad1c73e8e	266	#endif /* CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	267	#if CBCP_SUPPORT
bfictorie	0:8cdad1c73e8e	268	&cbcp_protent,
bfictorie	0:8cdad1c73e8e	269	#endif /* CBCP_SUPPORT */
bfictorie	0:8cdad1c73e8e	270	&ipcp_protent,
bfictorie	0:8cdad1c73e8e	271	#if CCP_SUPPORT
bfictorie	0:8cdad1c73e8e	272	&ccp_protent,
bfictorie	0:8cdad1c73e8e	273	#endif /* CCP_SUPPORT */
bfictorie	0:8cdad1c73e8e	274	NULL
bfictorie	0:8cdad1c73e8e	275	};
bfictorie	0:8cdad1c73e8e	276
bfictorie	0:8cdad1c73e8e	277
bfictorie	0:8cdad1c73e8e	278	/*
bfictorie	0:8cdad1c73e8e	279	* Buffers for outgoing packets. This must be accessed only from the appropriate
bfictorie	0:8cdad1c73e8e	280	* PPP task so that it doesn't need to be protected to avoid collisions.
bfictorie	0:8cdad1c73e8e	281	*/
bfictorie	0:8cdad1c73e8e	282	u_char outpacket_buf[NUM_PPP][PPP_MRU+PPP_HDRLEN] MEM_POSITION;
bfictorie	0:8cdad1c73e8e	283
bfictorie	0:8cdad1c73e8e	284
bfictorie	0:8cdad1c73e8e	285	/*****************************/
bfictorie	0:8cdad1c73e8e	286	/* LOCAL DATA STRUCTURES */
bfictorie	0:8cdad1c73e8e	287	/*****************************/
bfictorie	0:8cdad1c73e8e	288
bfictorie	0:8cdad1c73e8e	289	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	290	/*
bfictorie	0:8cdad1c73e8e	291	* FCS lookup table as calculated by genfcstab.
bfictorie	0:8cdad1c73e8e	292	* @todo: smaller, slower implementation for lower memory footprint?
bfictorie	0:8cdad1c73e8e	293	*/
bfictorie	0:8cdad1c73e8e	294	static const u_short fcstab[256] = {
bfictorie	0:8cdad1c73e8e	295	0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
bfictorie	0:8cdad1c73e8e	296	0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
bfictorie	0:8cdad1c73e8e	297	0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
bfictorie	0:8cdad1c73e8e	298	0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
bfictorie	0:8cdad1c73e8e	299	0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
bfictorie	0:8cdad1c73e8e	300	0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
bfictorie	0:8cdad1c73e8e	301	0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
bfictorie	0:8cdad1c73e8e	302	0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
bfictorie	0:8cdad1c73e8e	303	0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
bfictorie	0:8cdad1c73e8e	304	0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
bfictorie	0:8cdad1c73e8e	305	0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
bfictorie	0:8cdad1c73e8e	306	0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
bfictorie	0:8cdad1c73e8e	307	0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
bfictorie	0:8cdad1c73e8e	308	0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
bfictorie	0:8cdad1c73e8e	309	0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738,
bfictorie	0:8cdad1c73e8e	310	0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
bfictorie	0:8cdad1c73e8e	311	0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
bfictorie	0:8cdad1c73e8e	312	0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
bfictorie	0:8cdad1c73e8e	313	0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
bfictorie	0:8cdad1c73e8e	314	0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
bfictorie	0:8cdad1c73e8e	315	0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
bfictorie	0:8cdad1c73e8e	316	0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
bfictorie	0:8cdad1c73e8e	317	0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
bfictorie	0:8cdad1c73e8e	318	0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
bfictorie	0:8cdad1c73e8e	319	0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
bfictorie	0:8cdad1c73e8e	320	0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
bfictorie	0:8cdad1c73e8e	321	0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
bfictorie	0:8cdad1c73e8e	322	0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
bfictorie	0:8cdad1c73e8e	323	0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
bfictorie	0:8cdad1c73e8e	324	0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
bfictorie	0:8cdad1c73e8e	325	0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
bfictorie	0:8cdad1c73e8e	326	0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
bfictorie	0:8cdad1c73e8e	327	};
bfictorie	0:8cdad1c73e8e	328
bfictorie	0:8cdad1c73e8e	329	/* PPP's Asynchronous-Control-Character-Map. The mask array is used
bfictorie	0:8cdad1c73e8e	330	* to select the specific bit for a character. */
bfictorie	0:8cdad1c73e8e	331	static u_char pppACCMMask[] = {
bfictorie	0:8cdad1c73e8e	332	0x01,
bfictorie	0:8cdad1c73e8e	333	0x02,
bfictorie	0:8cdad1c73e8e	334	0x04,
bfictorie	0:8cdad1c73e8e	335	0x08,
bfictorie	0:8cdad1c73e8e	336	0x10,
bfictorie	0:8cdad1c73e8e	337	0x20,
bfictorie	0:8cdad1c73e8e	338	0x40,
bfictorie	0:8cdad1c73e8e	339	0x80
bfictorie	0:8cdad1c73e8e	340	};
bfictorie	0:8cdad1c73e8e	341
bfictorie	0:8cdad1c73e8e	342	/** Wake up the task blocked in reading from serial line (if any) */
bfictorie	0:8cdad1c73e8e	343	static void
bfictorie	0:8cdad1c73e8e	344	pppRecvWakeup(int pd)
bfictorie	0:8cdad1c73e8e	345	{
bfictorie	0:8cdad1c73e8e	346	PPPDEBUG(LOG_DEBUG, ("pppRecvWakeup: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	347	sio_read_abort(pppControl[pd].fd);
bfictorie	0:8cdad1c73e8e	348	}
bfictorie	0:8cdad1c73e8e	349	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	350
bfictorie	0:8cdad1c73e8e	351	void
bfictorie	0:8cdad1c73e8e	352	pppLinkTerminated(int pd)
bfictorie	0:8cdad1c73e8e	353	{
bfictorie	0:8cdad1c73e8e	354	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	355
bfictorie	0:8cdad1c73e8e	356	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	357	if (pppControl[pd].ethif) {
bfictorie	0:8cdad1c73e8e	358	pppoe_disconnect(pppControl[pd].pppoe_sc);
bfictorie	0:8cdad1c73e8e	359	} else
bfictorie	0:8cdad1c73e8e	360	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	361	{
bfictorie	0:8cdad1c73e8e	362	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	363	PPPControl* pc;
bfictorie	0:8cdad1c73e8e	364	pppRecvWakeup(pd);
bfictorie	0:8cdad1c73e8e	365	pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	366	pppDrop(&pc->rx); /* bug fix #17726 */
bfictorie	0:8cdad1c73e8e	367
bfictorie	0:8cdad1c73e8e	368	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
bfictorie	0:8cdad1c73e8e	369	if (pc->linkStatusCB) {
bfictorie	0:8cdad1c73e8e	370	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
bfictorie	0:8cdad1c73e8e	371	}
bfictorie	0:8cdad1c73e8e	372
bfictorie	0:8cdad1c73e8e	373	pc->openFlag = 0;/**/
bfictorie	0:8cdad1c73e8e	374	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	375	}
bfictorie	0:8cdad1c73e8e	376	PPPDEBUG(LOG_DEBUG, ("pppLinkTerminated: finished.\n"));
bfictorie	0:8cdad1c73e8e	377	}
bfictorie	0:8cdad1c73e8e	378
bfictorie	0:8cdad1c73e8e	379	void
bfictorie	0:8cdad1c73e8e	380	pppLinkDown(int pd)
bfictorie	0:8cdad1c73e8e	381	{
bfictorie	0:8cdad1c73e8e	382	PPPDEBUG(LOG_DEBUG, ("pppLinkDown: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	383
bfictorie	0:8cdad1c73e8e	384	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	385	if (pppControl[pd].ethif) {
bfictorie	0:8cdad1c73e8e	386	pppoe_disconnect(pppControl[pd].pppoe_sc);
bfictorie	0:8cdad1c73e8e	387	} else
bfictorie	0:8cdad1c73e8e	388	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	389	{
bfictorie	0:8cdad1c73e8e	390	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	391	pppRecvWakeup(pd);
bfictorie	0:8cdad1c73e8e	392	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	393	}
bfictorie	0:8cdad1c73e8e	394	}
bfictorie	0:8cdad1c73e8e	395
bfictorie	0:8cdad1c73e8e	396	/** Initiate LCP open request */
bfictorie	0:8cdad1c73e8e	397	static void
bfictorie	0:8cdad1c73e8e	398	pppStart(int pd)
bfictorie	0:8cdad1c73e8e	399	{
bfictorie	0:8cdad1c73e8e	400	PPPDEBUG(LOG_DEBUG, ("pppStart: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	401	lcp_lowerup(pd);
bfictorie	0:8cdad1c73e8e	402	lcp_open(pd); /* Start protocol */
bfictorie	0:8cdad1c73e8e	403	PPPDEBUG(LOG_DEBUG, ("pppStart: finished\n"));
bfictorie	0:8cdad1c73e8e	404	}
bfictorie	0:8cdad1c73e8e	405
bfictorie	0:8cdad1c73e8e	406	/** LCP close request */
bfictorie	0:8cdad1c73e8e	407	static void
bfictorie	0:8cdad1c73e8e	408	pppStop(int pd)
bfictorie	0:8cdad1c73e8e	409	{
bfictorie	0:8cdad1c73e8e	410	PPPDEBUG(LOG_DEBUG, ("pppStop: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	411	lcp_close(pd, "User request");
bfictorie	0:8cdad1c73e8e	412	}
bfictorie	0:8cdad1c73e8e	413
bfictorie	0:8cdad1c73e8e	414	/** Called when carrier/link is lost */
bfictorie	0:8cdad1c73e8e	415	static void
bfictorie	0:8cdad1c73e8e	416	pppHup(int pd)
bfictorie	0:8cdad1c73e8e	417	{
bfictorie	0:8cdad1c73e8e	418	PPPDEBUG(LOG_DEBUG, ("pppHupCB: unit %d\n", pd));
bfictorie	0:8cdad1c73e8e	419	lcp_lowerdown(pd);
bfictorie	0:8cdad1c73e8e	420	link_terminated(pd);
bfictorie	0:8cdad1c73e8e	421	}
bfictorie	0:8cdad1c73e8e	422
bfictorie	0:8cdad1c73e8e	423	/***********************************/
bfictorie	0:8cdad1c73e8e	424	/* PUBLIC FUNCTION DEFINITIONS */
bfictorie	0:8cdad1c73e8e	425	/***********************************/
bfictorie	0:8cdad1c73e8e	426	/* Initialize the PPP subsystem. */
bfictorie	0:8cdad1c73e8e	427
bfictorie	0:8cdad1c73e8e	428	struct ppp_settings ppp_settings;
bfictorie	0:8cdad1c73e8e	429
bfictorie	0:8cdad1c73e8e	430	void
bfictorie	0:8cdad1c73e8e	431	pppInit(void)
bfictorie	0:8cdad1c73e8e	432	{
bfictorie	0:8cdad1c73e8e	433	struct protent *protp;
bfictorie	0:8cdad1c73e8e	434	int i, j;
bfictorie	0:8cdad1c73e8e	435
bfictorie	0:8cdad1c73e8e	436	memset(&ppp_settings, 0, sizeof(ppp_settings));
bfictorie	0:8cdad1c73e8e	437	ppp_settings.usepeerdns = 1;
bfictorie	0:8cdad1c73e8e	438	pppSetAuth(PPPAUTHTYPE_NONE, NULL, NULL);
bfictorie	0:8cdad1c73e8e	439
bfictorie	0:8cdad1c73e8e	440	magicInit();
bfictorie	0:8cdad1c73e8e	441
bfictorie	0:8cdad1c73e8e	442	subnetMask = PP_HTONL(0xffffff00);
bfictorie	0:8cdad1c73e8e	443
bfictorie	0:8cdad1c73e8e	444	for (i = 0; i < NUM_PPP; i++) {
bfictorie	0:8cdad1c73e8e	445	/* Initialize each protocol to the standard option set. */
bfictorie	0:8cdad1c73e8e	446	for (j = 0; (protp = ppp_protocols[j]) != NULL; ++j) {
bfictorie	0:8cdad1c73e8e	447	(*protp->init)(i);
bfictorie	0:8cdad1c73e8e	448	}
bfictorie	0:8cdad1c73e8e	449	}
bfictorie	0:8cdad1c73e8e	450	}
bfictorie	0:8cdad1c73e8e	451
bfictorie	0:8cdad1c73e8e	452	void
bfictorie	0:8cdad1c73e8e	453	pppSetAuth(enum pppAuthType authType, const char user, const char passwd)
bfictorie	0:8cdad1c73e8e	454	{
bfictorie	0:8cdad1c73e8e	455	switch(authType) {
bfictorie	0:8cdad1c73e8e	456	case PPPAUTHTYPE_NONE:
bfictorie	0:8cdad1c73e8e	457	default:
bfictorie	0:8cdad1c73e8e	458	#ifdef LWIP_PPP_STRICT_PAP_REJECT
bfictorie	0:8cdad1c73e8e	459	ppp_settings.refuse_pap = 1;
bfictorie	0:8cdad1c73e8e	460	#else /* LWIP_PPP_STRICT_PAP_REJECT */
bfictorie	0:8cdad1c73e8e	461	/* some providers request pap and accept an empty login/pw */
bfictorie	0:8cdad1c73e8e	462	ppp_settings.refuse_pap = 0;
bfictorie	0:8cdad1c73e8e	463	#endif /* LWIP_PPP_STRICT_PAP_REJECT */
bfictorie	0:8cdad1c73e8e	464	ppp_settings.refuse_chap = 1;
bfictorie	0:8cdad1c73e8e	465	break;
bfictorie	0:8cdad1c73e8e	466
bfictorie	0:8cdad1c73e8e	467	case PPPAUTHTYPE_ANY:
bfictorie	0:8cdad1c73e8e	468	/* Warning: Using PPPAUTHTYPE_ANY might have security consequences.
bfictorie	0:8cdad1c73e8e	469	* RFC 1994 says:
bfictorie	0:8cdad1c73e8e	470	*
bfictorie	0:8cdad1c73e8e	471	* In practice, within or associated with each PPP server, there is a
bfictorie	0:8cdad1c73e8e	472	* database which associates "user" names with authentication
bfictorie	0:8cdad1c73e8e	473	* information ("secrets"). It is not anticipated that a particular
bfictorie	0:8cdad1c73e8e	474	* named user would be authenticated by multiple methods. This would
bfictorie	0:8cdad1c73e8e	475	* make the user vulnerable to attacks which negotiate the least secure
bfictorie	0:8cdad1c73e8e	476	* method from among a set (such as PAP rather than CHAP). If the same
bfictorie	0:8cdad1c73e8e	477	* secret was used, PAP would reveal the secret to be used later with
bfictorie	0:8cdad1c73e8e	478	* CHAP.
bfictorie	0:8cdad1c73e8e	479	*
bfictorie	0:8cdad1c73e8e	480	* Instead, for each user name there should be an indication of exactly
bfictorie	0:8cdad1c73e8e	481	* one method used to authenticate that user name. If a user needs to
bfictorie	0:8cdad1c73e8e	482	* make use of different authentication methods under different
bfictorie	0:8cdad1c73e8e	483	* circumstances, then distinct user names SHOULD be employed, each of
bfictorie	0:8cdad1c73e8e	484	* which identifies exactly one authentication method.
bfictorie	0:8cdad1c73e8e	485	*
bfictorie	0:8cdad1c73e8e	486	*/
bfictorie	0:8cdad1c73e8e	487	ppp_settings.refuse_pap = 0;
bfictorie	0:8cdad1c73e8e	488	ppp_settings.refuse_chap = 0;
bfictorie	0:8cdad1c73e8e	489	break;
bfictorie	0:8cdad1c73e8e	490
bfictorie	0:8cdad1c73e8e	491	case PPPAUTHTYPE_PAP:
bfictorie	0:8cdad1c73e8e	492	ppp_settings.refuse_pap = 0;
bfictorie	0:8cdad1c73e8e	493	ppp_settings.refuse_chap = 1;
bfictorie	0:8cdad1c73e8e	494	break;
bfictorie	0:8cdad1c73e8e	495
bfictorie	0:8cdad1c73e8e	496	case PPPAUTHTYPE_CHAP:
bfictorie	0:8cdad1c73e8e	497	ppp_settings.refuse_pap = 1;
bfictorie	0:8cdad1c73e8e	498	ppp_settings.refuse_chap = 0;
bfictorie	0:8cdad1c73e8e	499	break;
bfictorie	0:8cdad1c73e8e	500	}
bfictorie	0:8cdad1c73e8e	501
bfictorie	0:8cdad1c73e8e	502	if(user) {
bfictorie	0:8cdad1c73e8e	503	strncpy(ppp_settings.user, user, sizeof(ppp_settings.user)-1);
bfictorie	0:8cdad1c73e8e	504	ppp_settings.user[sizeof(ppp_settings.user)-1] = '\0';
bfictorie	0:8cdad1c73e8e	505	} else {
bfictorie	0:8cdad1c73e8e	506	ppp_settings.user[0] = '\0';
bfictorie	0:8cdad1c73e8e	507	}
bfictorie	0:8cdad1c73e8e	508
bfictorie	0:8cdad1c73e8e	509	if(passwd) {
bfictorie	0:8cdad1c73e8e	510	strncpy(ppp_settings.passwd, passwd, sizeof(ppp_settings.passwd)-1);
bfictorie	0:8cdad1c73e8e	511	ppp_settings.passwd[sizeof(ppp_settings.passwd)-1] = '\0';
bfictorie	0:8cdad1c73e8e	512	} else {
bfictorie	0:8cdad1c73e8e	513	ppp_settings.passwd[0] = '\0';
bfictorie	0:8cdad1c73e8e	514	}
bfictorie	0:8cdad1c73e8e	515	}
bfictorie	0:8cdad1c73e8e	516
bfictorie	0:8cdad1c73e8e	517	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	518	/** Open a new PPP connection using the given I/O device.
bfictorie	0:8cdad1c73e8e	519	* This initializes the PPP control block but does not
bfictorie	0:8cdad1c73e8e	520	* attempt to negotiate the LCP session. If this port
bfictorie	0:8cdad1c73e8e	521	* connects to a modem, the modem connection must be
bfictorie	0:8cdad1c73e8e	522	* established before calling this.
bfictorie	0:8cdad1c73e8e	523	* Return a new PPP connection descriptor on success or
bfictorie	0:8cdad1c73e8e	524	* an error code (negative) on failure.
bfictorie	0:8cdad1c73e8e	525	*
bfictorie	0:8cdad1c73e8e	526	* pppOpen() is directly defined to this function.
bfictorie	0:8cdad1c73e8e	527	*/
bfictorie	0:8cdad1c73e8e	528	int
bfictorie	0:8cdad1c73e8e	529	pppOverSerialOpen(sio_fd_t fd, void (linkStatusCB)(void ctx, int errCode, void arg), void linkStatusCtx)
bfictorie	0:8cdad1c73e8e	530	{
bfictorie	0:8cdad1c73e8e	531	PPPControl *pc;
bfictorie	0:8cdad1c73e8e	532	int pd;
bfictorie	0:8cdad1c73e8e	533
bfictorie	0:8cdad1c73e8e	534	if (linkStatusCB == NULL) {
bfictorie	0:8cdad1c73e8e	535	/* PPP is single-threaded: without a callback,
bfictorie	0:8cdad1c73e8e	536	* there is no way to know when the link is up. */
bfictorie	0:8cdad1c73e8e	537	return PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	538	}
bfictorie	0:8cdad1c73e8e	539
bfictorie	0:8cdad1c73e8e	540	/* Find a free PPP session descriptor. */
bfictorie	0:8cdad1c73e8e	541	for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
bfictorie	0:8cdad1c73e8e	542
bfictorie	0:8cdad1c73e8e	543	if (pd >= NUM_PPP) {
bfictorie	0:8cdad1c73e8e	544	pd = PPPERR_OPEN;
bfictorie	0:8cdad1c73e8e	545	} else {
bfictorie	0:8cdad1c73e8e	546	pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	547	/* @todo: is this correct or do I overwrite something? */
bfictorie	0:8cdad1c73e8e	548	memset(pc, 0, sizeof(PPPControl));
bfictorie	0:8cdad1c73e8e	549	pc->rx.pd = pd;
bfictorie	0:8cdad1c73e8e	550	pc->rx.fd = fd;
bfictorie	0:8cdad1c73e8e	551
bfictorie	0:8cdad1c73e8e	552	pc->openFlag = 1;
bfictorie	0:8cdad1c73e8e	553	pc->fd = fd;
bfictorie	0:8cdad1c73e8e	554
bfictorie	0:8cdad1c73e8e	555	#if VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	556	vj_compress_init(&pc->vjComp);
bfictorie	0:8cdad1c73e8e	557	#endif /* VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	558
bfictorie	0:8cdad1c73e8e	559	/*
bfictorie	0:8cdad1c73e8e	560	* Default the in and out accm so that escape and flag characters
bfictorie	0:8cdad1c73e8e	561	* are always escaped.
bfictorie	0:8cdad1c73e8e	562	*/
bfictorie	0:8cdad1c73e8e	563	pc->rx.inACCM[15] = 0x60; /* no need to protect since RX is not running */
bfictorie	0:8cdad1c73e8e	564	pc->outACCM[15] = 0x60;
bfictorie	0:8cdad1c73e8e	565
bfictorie	0:8cdad1c73e8e	566	pc->linkStatusCB = linkStatusCB;
bfictorie	0:8cdad1c73e8e	567	pc->linkStatusCtx = linkStatusCtx;
bfictorie	0:8cdad1c73e8e	568
bfictorie	0:8cdad1c73e8e	569	/*
bfictorie	0:8cdad1c73e8e	570	* Start the connection and handle incoming events (packet or timeout).
bfictorie	0:8cdad1c73e8e	571	*/
bfictorie	0:8cdad1c73e8e	572	PPPDEBUG(LOG_INFO, ("pppOverSerialOpen: unit %d: Connecting\n", pd));
bfictorie	0:8cdad1c73e8e	573	pppStart(pd);
bfictorie	0:8cdad1c73e8e	574	#if PPP_INPROC_OWNTHREAD
bfictorie	0:8cdad1c73e8e	575	sys_thread_new(PPP_THREAD_NAME, pppInputThread, (void*)&pc->rx, PPP_THREAD_STACKSIZE, PPP_THREAD_PRIO);
bfictorie	0:8cdad1c73e8e	576	#endif
bfictorie	0:8cdad1c73e8e	577	}
bfictorie	0:8cdad1c73e8e	578
bfictorie	0:8cdad1c73e8e	579	return pd;
bfictorie	0:8cdad1c73e8e	580	}
bfictorie	0:8cdad1c73e8e	581	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	582
bfictorie	0:8cdad1c73e8e	583	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	584	static void pppOverEthernetLinkStatusCB(int pd, int up);
bfictorie	0:8cdad1c73e8e	585
bfictorie	0:8cdad1c73e8e	586	void
bfictorie	0:8cdad1c73e8e	587	pppOverEthernetClose(int pd)
bfictorie	0:8cdad1c73e8e	588	{
bfictorie	0:8cdad1c73e8e	589	PPPControl* pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	590
bfictorie	0:8cdad1c73e8e	591	/* TJL There's no lcp_deinit */
bfictorie	0:8cdad1c73e8e	592	lcp_close(pd, NULL);
bfictorie	0:8cdad1c73e8e	593
bfictorie	0:8cdad1c73e8e	594	pppoe_destroy(&pc->netif);
bfictorie	0:8cdad1c73e8e	595	}
bfictorie	0:8cdad1c73e8e	596
bfictorie	0:8cdad1c73e8e	597	int pppOverEthernetOpen(struct netif ethif, const char service_name, const char concentrator_name, void (linkStatusCB)(void ctx, int errCode, void arg), void *linkStatusCtx)
bfictorie	0:8cdad1c73e8e	598	{
bfictorie	0:8cdad1c73e8e	599	PPPControl *pc;
bfictorie	0:8cdad1c73e8e	600	int pd;
bfictorie	0:8cdad1c73e8e	601
bfictorie	0:8cdad1c73e8e	602	LWIP_UNUSED_ARG(service_name);
bfictorie	0:8cdad1c73e8e	603	LWIP_UNUSED_ARG(concentrator_name);
bfictorie	0:8cdad1c73e8e	604
bfictorie	0:8cdad1c73e8e	605	if (linkStatusCB == NULL) {
bfictorie	0:8cdad1c73e8e	606	/* PPP is single-threaded: without a callback,
bfictorie	0:8cdad1c73e8e	607	* there is no way to know when the link is up. */
bfictorie	0:8cdad1c73e8e	608	return PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	609	}
bfictorie	0:8cdad1c73e8e	610
bfictorie	0:8cdad1c73e8e	611	/* Find a free PPP session descriptor. Critical region? */
bfictorie	0:8cdad1c73e8e	612	for (pd = 0; pd < NUM_PPP && pppControl[pd].openFlag != 0; pd++);
bfictorie	0:8cdad1c73e8e	613	if (pd >= NUM_PPP) {
bfictorie	0:8cdad1c73e8e	614	pd = PPPERR_OPEN;
bfictorie	0:8cdad1c73e8e	615	} else {
bfictorie	0:8cdad1c73e8e	616	pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	617	memset(pc, 0, sizeof(PPPControl));
bfictorie	0:8cdad1c73e8e	618	pc->openFlag = 1;
bfictorie	0:8cdad1c73e8e	619	pc->ethif = ethif;
bfictorie	0:8cdad1c73e8e	620
bfictorie	0:8cdad1c73e8e	621	pc->linkStatusCB = linkStatusCB;
bfictorie	0:8cdad1c73e8e	622	pc->linkStatusCtx = linkStatusCtx;
bfictorie	0:8cdad1c73e8e	623
bfictorie	0:8cdad1c73e8e	624	lcp_wantoptions[pd].mru = PPPOE_MAXMTU;
bfictorie	0:8cdad1c73e8e	625	lcp_wantoptions[pd].neg_asyncmap = 0;
bfictorie	0:8cdad1c73e8e	626	lcp_wantoptions[pd].neg_pcompression = 0;
bfictorie	0:8cdad1c73e8e	627	lcp_wantoptions[pd].neg_accompression = 0;
bfictorie	0:8cdad1c73e8e	628
bfictorie	0:8cdad1c73e8e	629	lcp_allowoptions[pd].mru = PPPOE_MAXMTU;
bfictorie	0:8cdad1c73e8e	630	lcp_allowoptions[pd].neg_asyncmap = 0;
bfictorie	0:8cdad1c73e8e	631	lcp_allowoptions[pd].neg_pcompression = 0;
bfictorie	0:8cdad1c73e8e	632	lcp_allowoptions[pd].neg_accompression = 0;
bfictorie	0:8cdad1c73e8e	633
bfictorie	0:8cdad1c73e8e	634	if(pppoe_create(ethif, pd, pppOverEthernetLinkStatusCB, &pc->pppoe_sc) != ERR_OK) {
bfictorie	0:8cdad1c73e8e	635	pc->openFlag = 0;
bfictorie	0:8cdad1c73e8e	636	return PPPERR_OPEN;
bfictorie	0:8cdad1c73e8e	637	}
bfictorie	0:8cdad1c73e8e	638
bfictorie	0:8cdad1c73e8e	639	pppoe_connect(pc->pppoe_sc);
bfictorie	0:8cdad1c73e8e	640	}
bfictorie	0:8cdad1c73e8e	641
bfictorie	0:8cdad1c73e8e	642	return pd;
bfictorie	0:8cdad1c73e8e	643	}
bfictorie	0:8cdad1c73e8e	644	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	645
bfictorie	0:8cdad1c73e8e	646
bfictorie	0:8cdad1c73e8e	647	/* Close a PPP connection and release the descriptor.
bfictorie	0:8cdad1c73e8e	648	* Any outstanding packets in the queues are dropped.
bfictorie	0:8cdad1c73e8e	649	* Return 0 on success, an error code on failure. */
bfictorie	0:8cdad1c73e8e	650	int
bfictorie	0:8cdad1c73e8e	651	pppClose(int pd)
bfictorie	0:8cdad1c73e8e	652	{
bfictorie	0:8cdad1c73e8e	653	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	654	int st = 0;
bfictorie	0:8cdad1c73e8e	655
bfictorie	0:8cdad1c73e8e	656	PPPDEBUG(LOG_DEBUG, ("pppClose() called\n"));
bfictorie	0:8cdad1c73e8e	657
bfictorie	0:8cdad1c73e8e	658	/* Disconnect */
bfictorie	0:8cdad1c73e8e	659	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	660	if(pc->ethif) {
bfictorie	0:8cdad1c73e8e	661	PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
bfictorie	0:8cdad1c73e8e	662	pc->errCode = PPPERR_USER;
bfictorie	0:8cdad1c73e8e	663	/* This will leave us at PHASE_DEAD. */
bfictorie	0:8cdad1c73e8e	664	pppStop(pd);
bfictorie	0:8cdad1c73e8e	665	} else
bfictorie	0:8cdad1c73e8e	666	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	667	{
bfictorie	0:8cdad1c73e8e	668	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	669	PPPDEBUG(LOG_DEBUG, ("pppClose: unit %d kill_link -> pppStop\n", pd));
bfictorie	0:8cdad1c73e8e	670	pc->errCode = PPPERR_USER;
bfictorie	0:8cdad1c73e8e	671	/* This will leave us at PHASE_DEAD. */
bfictorie	0:8cdad1c73e8e	672	pppStop(pd);
bfictorie	0:8cdad1c73e8e	673	pppRecvWakeup(pd);
bfictorie	0:8cdad1c73e8e	674	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	675	}
bfictorie	0:8cdad1c73e8e	676
bfictorie	0:8cdad1c73e8e	677	return st;
bfictorie	0:8cdad1c73e8e	678	}
bfictorie	0:8cdad1c73e8e	679
bfictorie	0:8cdad1c73e8e	680	/* This function is called when carrier is lost on the PPP channel. */
bfictorie	0:8cdad1c73e8e	681	void
bfictorie	0:8cdad1c73e8e	682	pppSigHUP(int pd)
bfictorie	0:8cdad1c73e8e	683	{
bfictorie	0:8cdad1c73e8e	684	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	685	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	686	if(pc->ethif) {
bfictorie	0:8cdad1c73e8e	687	PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
bfictorie	0:8cdad1c73e8e	688	pppHup(pd);
bfictorie	0:8cdad1c73e8e	689	} else
bfictorie	0:8cdad1c73e8e	690	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	691	{
bfictorie	0:8cdad1c73e8e	692	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	693	PPPDEBUG(LOG_DEBUG, ("pppSigHUP: unit %d sig_hup -> pppHupCB\n", pd));
bfictorie	0:8cdad1c73e8e	694	pppHup(pd);
bfictorie	0:8cdad1c73e8e	695	pppRecvWakeup(pd);
bfictorie	0:8cdad1c73e8e	696	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	697	}
bfictorie	0:8cdad1c73e8e	698	}
bfictorie	0:8cdad1c73e8e	699
bfictorie	0:8cdad1c73e8e	700	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	701	static void
bfictorie	0:8cdad1c73e8e	702	nPut(PPPControl pc, struct pbuf nb)
bfictorie	0:8cdad1c73e8e	703	{
bfictorie	0:8cdad1c73e8e	704	struct pbuf *b;
bfictorie	0:8cdad1c73e8e	705	int c;
bfictorie	0:8cdad1c73e8e	706
bfictorie	0:8cdad1c73e8e	707	for(b = nb; b != NULL; b = b->next) {
bfictorie	0:8cdad1c73e8e	708	if((c = sio_write(pc->fd, (u8_t *)b->payload, b->len)) != b->len) {
bfictorie	0:8cdad1c73e8e	709	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	710	("PPP nPut: incomplete sio_write(fd:%"SZT_F", len:%d, c: 0x%"X8_F") c = %d\n", (size_t)pc->fd, b->len, c, c));
bfictorie	0:8cdad1c73e8e	711	LINK_STATS_INC(link.err);
bfictorie	0:8cdad1c73e8e	712	pc->lastXMit = 0; /* prepend PPP_FLAG to next packet */
bfictorie	0:8cdad1c73e8e	713	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	714	pbuf_free(nb);
bfictorie	0:8cdad1c73e8e	715	return;
bfictorie	0:8cdad1c73e8e	716	}
bfictorie	0:8cdad1c73e8e	717	}
bfictorie	0:8cdad1c73e8e	718
bfictorie	0:8cdad1c73e8e	719	snmp_add_ifoutoctets(&pc->netif, nb->tot_len);
bfictorie	0:8cdad1c73e8e	720	snmp_inc_ifoutucastpkts(&pc->netif);
bfictorie	0:8cdad1c73e8e	721	pbuf_free(nb);
bfictorie	0:8cdad1c73e8e	722	LINK_STATS_INC(link.xmit);
bfictorie	0:8cdad1c73e8e	723	}
bfictorie	0:8cdad1c73e8e	724
bfictorie	0:8cdad1c73e8e	725	/*
bfictorie	0:8cdad1c73e8e	726	* pppAppend - append given character to end of given pbuf. If outACCM
bfictorie	0:8cdad1c73e8e	727	* is not NULL and the character needs to be escaped, do so.
bfictorie	0:8cdad1c73e8e	728	* If pbuf is full, append another.
bfictorie	0:8cdad1c73e8e	729	* Return the current pbuf.
bfictorie	0:8cdad1c73e8e	730	*/
bfictorie	0:8cdad1c73e8e	731	static struct pbuf *
bfictorie	0:8cdad1c73e8e	732	pppAppend(u_char c, struct pbuf nb, ext_accm outACCM)
bfictorie	0:8cdad1c73e8e	733	{
bfictorie	0:8cdad1c73e8e	734	struct pbuf *tb = nb;
bfictorie	0:8cdad1c73e8e	735
bfictorie	0:8cdad1c73e8e	736	/* Make sure there is room for the character and an escape code.
bfictorie	0:8cdad1c73e8e	737	* Sure we don't quite fill the buffer if the character doesn't
bfictorie	0:8cdad1c73e8e	738	* get escaped but is one character worth complicating this? */
bfictorie	0:8cdad1c73e8e	739	/* Note: We assume no packet header. */
bfictorie	0:8cdad1c73e8e	740	if (nb && (PBUF_POOL_BUFSIZE - nb->len) < 2) {
bfictorie	0:8cdad1c73e8e	741	tb = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
bfictorie	0:8cdad1c73e8e	742	if (tb) {
bfictorie	0:8cdad1c73e8e	743	nb->next = tb;
bfictorie	0:8cdad1c73e8e	744	} else {
bfictorie	0:8cdad1c73e8e	745	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	746	}
bfictorie	0:8cdad1c73e8e	747	nb = tb;
bfictorie	0:8cdad1c73e8e	748	}
bfictorie	0:8cdad1c73e8e	749
bfictorie	0:8cdad1c73e8e	750	if (nb) {
bfictorie	0:8cdad1c73e8e	751	if (outACCM && ESCAPE_P(*outACCM, c)) {
bfictorie	0:8cdad1c73e8e	752	((u_char)nb->payload + nb->len++) = PPP_ESCAPE;
bfictorie	0:8cdad1c73e8e	753	((u_char)nb->payload + nb->len++) = c ^ PPP_TRANS;
bfictorie	0:8cdad1c73e8e	754	} else {
bfictorie	0:8cdad1c73e8e	755	((u_char)nb->payload + nb->len++) = c;
bfictorie	0:8cdad1c73e8e	756	}
bfictorie	0:8cdad1c73e8e	757	}
bfictorie	0:8cdad1c73e8e	758
bfictorie	0:8cdad1c73e8e	759	return tb;
bfictorie	0:8cdad1c73e8e	760	}
bfictorie	0:8cdad1c73e8e	761	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	762
bfictorie	0:8cdad1c73e8e	763	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	764	static err_t
bfictorie	0:8cdad1c73e8e	765	pppifOutputOverEthernet(int pd, struct pbuf *p)
bfictorie	0:8cdad1c73e8e	766	{
bfictorie	0:8cdad1c73e8e	767	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	768	struct pbuf *pb;
bfictorie	0:8cdad1c73e8e	769	u_short protocol = PPP_IP;
bfictorie	0:8cdad1c73e8e	770	int i=0;
bfictorie	0:8cdad1c73e8e	771	u16_t tot_len;
bfictorie	0:8cdad1c73e8e	772
bfictorie	0:8cdad1c73e8e	773	/* @todo: try to use pbuf_header() here! */
bfictorie	0:8cdad1c73e8e	774	pb = pbuf_alloc(PBUF_LINK, PPPOE_HDRLEN + sizeof(protocol), PBUF_RAM);
bfictorie	0:8cdad1c73e8e	775	if(!pb) {
bfictorie	0:8cdad1c73e8e	776	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	777	LINK_STATS_INC(link.proterr);
bfictorie	0:8cdad1c73e8e	778	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	779	return ERR_MEM;
bfictorie	0:8cdad1c73e8e	780	}
bfictorie	0:8cdad1c73e8e	781
bfictorie	0:8cdad1c73e8e	782	pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
bfictorie	0:8cdad1c73e8e	783
bfictorie	0:8cdad1c73e8e	784	pc->lastXMit = sys_jiffies();
bfictorie	0:8cdad1c73e8e	785
bfictorie	0:8cdad1c73e8e	786	if (!pc->pcomp \|\| protocol > 0xFF) {
bfictorie	0:8cdad1c73e8e	787	((u_char)pb->payload + i++) = (protocol >> 8) & 0xFF;
bfictorie	0:8cdad1c73e8e	788	}
bfictorie	0:8cdad1c73e8e	789	((u_char)pb->payload + i) = protocol & 0xFF;
bfictorie	0:8cdad1c73e8e	790
bfictorie	0:8cdad1c73e8e	791	pbuf_chain(pb, p);
bfictorie	0:8cdad1c73e8e	792	tot_len = pb->tot_len;
bfictorie	0:8cdad1c73e8e	793
bfictorie	0:8cdad1c73e8e	794	if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
bfictorie	0:8cdad1c73e8e	795	LINK_STATS_INC(link.err);
bfictorie	0:8cdad1c73e8e	796	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	797	return PPPERR_DEVICE;
bfictorie	0:8cdad1c73e8e	798	}
bfictorie	0:8cdad1c73e8e	799
bfictorie	0:8cdad1c73e8e	800	snmp_add_ifoutoctets(&pc->netif, tot_len);
bfictorie	0:8cdad1c73e8e	801	snmp_inc_ifoutucastpkts(&pc->netif);
bfictorie	0:8cdad1c73e8e	802	LINK_STATS_INC(link.xmit);
bfictorie	0:8cdad1c73e8e	803	return ERR_OK;
bfictorie	0:8cdad1c73e8e	804	}
bfictorie	0:8cdad1c73e8e	805	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	806
bfictorie	0:8cdad1c73e8e	807	/* Send a packet on the given connection. */
bfictorie	0:8cdad1c73e8e	808	static err_t
bfictorie	0:8cdad1c73e8e	809	pppifOutput(struct netif netif, struct pbuf pb, ip_addr_t *ipaddr)
bfictorie	0:8cdad1c73e8e	810	{
bfictorie	0:8cdad1c73e8e	811	int pd = (int)(size_t)netif->state;
bfictorie	0:8cdad1c73e8e	812	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	813	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	814	u_short protocol = PPP_IP;
bfictorie	0:8cdad1c73e8e	815	u_int fcsOut = PPP_INITFCS;
bfictorie	0:8cdad1c73e8e	816	struct pbuf headMB = NULL, tailMB = NULL, *p;
bfictorie	0:8cdad1c73e8e	817	u_char c;
bfictorie	0:8cdad1c73e8e	818	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	819
bfictorie	0:8cdad1c73e8e	820	LWIP_UNUSED_ARG(ipaddr);
bfictorie	0:8cdad1c73e8e	821
bfictorie	0:8cdad1c73e8e	822	/* Validate parameters. */
bfictorie	0:8cdad1c73e8e	823	/* We let any protocol value go through - it can't hurt us
bfictorie	0:8cdad1c73e8e	824	* and the peer will just drop it if it's not accepting it. */
bfictorie	0:8cdad1c73e8e	825	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag \|\| !pb) {
bfictorie	0:8cdad1c73e8e	826	PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad parms prot=%d pb=%p\n",
bfictorie	0:8cdad1c73e8e	827	pd, PPP_IP, pb));
bfictorie	0:8cdad1c73e8e	828	LINK_STATS_INC(link.opterr);
bfictorie	0:8cdad1c73e8e	829	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	830	snmp_inc_ifoutdiscards(netif);
bfictorie	0:8cdad1c73e8e	831	return ERR_ARG;
bfictorie	0:8cdad1c73e8e	832	}
bfictorie	0:8cdad1c73e8e	833
bfictorie	0:8cdad1c73e8e	834	/* Check that the link is up. */
bfictorie	0:8cdad1c73e8e	835	if (lcp_phase[pd] == PHASE_DEAD) {
bfictorie	0:8cdad1c73e8e	836	PPPDEBUG(LOG_ERR, ("pppifOutput[%d]: link not up\n", pd));
bfictorie	0:8cdad1c73e8e	837	LINK_STATS_INC(link.rterr);
bfictorie	0:8cdad1c73e8e	838	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	839	snmp_inc_ifoutdiscards(netif);
bfictorie	0:8cdad1c73e8e	840	return ERR_RTE;
bfictorie	0:8cdad1c73e8e	841	}
bfictorie	0:8cdad1c73e8e	842
bfictorie	0:8cdad1c73e8e	843	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	844	if(pc->ethif) {
bfictorie	0:8cdad1c73e8e	845	return pppifOutputOverEthernet(pd, pb);
bfictorie	0:8cdad1c73e8e	846	}
bfictorie	0:8cdad1c73e8e	847	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	848
bfictorie	0:8cdad1c73e8e	849	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	850	/* Grab an output buffer. */
bfictorie	0:8cdad1c73e8e	851	headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
bfictorie	0:8cdad1c73e8e	852	if (headMB == NULL) {
bfictorie	0:8cdad1c73e8e	853	PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: first alloc fail\n", pd));
bfictorie	0:8cdad1c73e8e	854	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	855	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	856	snmp_inc_ifoutdiscards(netif);
bfictorie	0:8cdad1c73e8e	857	return ERR_MEM;
bfictorie	0:8cdad1c73e8e	858	}
bfictorie	0:8cdad1c73e8e	859
bfictorie	0:8cdad1c73e8e	860	#if VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	861	/*
bfictorie	0:8cdad1c73e8e	862	* Attempt Van Jacobson header compression if VJ is configured and
bfictorie	0:8cdad1c73e8e	863	* this is an IP packet.
bfictorie	0:8cdad1c73e8e	864	*/
bfictorie	0:8cdad1c73e8e	865	if (protocol == PPP_IP && pc->vjEnabled) {
bfictorie	0:8cdad1c73e8e	866	switch (vj_compress_tcp(&pc->vjComp, pb)) {
bfictorie	0:8cdad1c73e8e	867	case TYPE_IP:
bfictorie	0:8cdad1c73e8e	868	/* No change...
bfictorie	0:8cdad1c73e8e	869	protocol = PPP_IP_PROTOCOL; */
bfictorie	0:8cdad1c73e8e	870	break;
bfictorie	0:8cdad1c73e8e	871	case TYPE_COMPRESSED_TCP:
bfictorie	0:8cdad1c73e8e	872	protocol = PPP_VJC_COMP;
bfictorie	0:8cdad1c73e8e	873	break;
bfictorie	0:8cdad1c73e8e	874	case TYPE_UNCOMPRESSED_TCP:
bfictorie	0:8cdad1c73e8e	875	protocol = PPP_VJC_UNCOMP;
bfictorie	0:8cdad1c73e8e	876	break;
bfictorie	0:8cdad1c73e8e	877	default:
bfictorie	0:8cdad1c73e8e	878	PPPDEBUG(LOG_WARNING, ("pppifOutput[%d]: bad IP packet\n", pd));
bfictorie	0:8cdad1c73e8e	879	LINK_STATS_INC(link.proterr);
bfictorie	0:8cdad1c73e8e	880	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	881	snmp_inc_ifoutdiscards(netif);
bfictorie	0:8cdad1c73e8e	882	pbuf_free(headMB);
bfictorie	0:8cdad1c73e8e	883	return ERR_VAL;
bfictorie	0:8cdad1c73e8e	884	}
bfictorie	0:8cdad1c73e8e	885	}
bfictorie	0:8cdad1c73e8e	886	#endif /* VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	887
bfictorie	0:8cdad1c73e8e	888	tailMB = headMB;
bfictorie	0:8cdad1c73e8e	889
bfictorie	0:8cdad1c73e8e	890	/* Build the PPP header. */
bfictorie	0:8cdad1c73e8e	891	if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
bfictorie	0:8cdad1c73e8e	892	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
bfictorie	0:8cdad1c73e8e	893	}
bfictorie	0:8cdad1c73e8e	894
bfictorie	0:8cdad1c73e8e	895	pc->lastXMit = sys_jiffies();
bfictorie	0:8cdad1c73e8e	896	if (!pc->accomp) {
bfictorie	0:8cdad1c73e8e	897	fcsOut = PPP_FCS(fcsOut, PPP_ALLSTATIONS);
bfictorie	0:8cdad1c73e8e	898	tailMB = pppAppend(PPP_ALLSTATIONS, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	899	fcsOut = PPP_FCS(fcsOut, PPP_UI);
bfictorie	0:8cdad1c73e8e	900	tailMB = pppAppend(PPP_UI, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	901	}
bfictorie	0:8cdad1c73e8e	902	if (!pc->pcomp \|\| protocol > 0xFF) {
bfictorie	0:8cdad1c73e8e	903	c = (protocol >> 8) & 0xFF;
bfictorie	0:8cdad1c73e8e	904	fcsOut = PPP_FCS(fcsOut, c);
bfictorie	0:8cdad1c73e8e	905	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	906	}
bfictorie	0:8cdad1c73e8e	907	c = protocol & 0xFF;
bfictorie	0:8cdad1c73e8e	908	fcsOut = PPP_FCS(fcsOut, c);
bfictorie	0:8cdad1c73e8e	909	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	910
bfictorie	0:8cdad1c73e8e	911	/* Load packet. */
bfictorie	0:8cdad1c73e8e	912	for(p = pb; p; p = p->next) {
bfictorie	0:8cdad1c73e8e	913	int n;
bfictorie	0:8cdad1c73e8e	914	u_char *sPtr;
bfictorie	0:8cdad1c73e8e	915
bfictorie	0:8cdad1c73e8e	916	sPtr = (u_char*)p->payload;
bfictorie	0:8cdad1c73e8e	917	n = p->len;
bfictorie	0:8cdad1c73e8e	918	while (n-- > 0) {
bfictorie	0:8cdad1c73e8e	919	c = *sPtr++;
bfictorie	0:8cdad1c73e8e	920
bfictorie	0:8cdad1c73e8e	921	/* Update FCS before checking for special characters. */
bfictorie	0:8cdad1c73e8e	922	fcsOut = PPP_FCS(fcsOut, c);
bfictorie	0:8cdad1c73e8e	923
bfictorie	0:8cdad1c73e8e	924	/* Copy to output buffer escaping special characters. */
bfictorie	0:8cdad1c73e8e	925	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	926	}
bfictorie	0:8cdad1c73e8e	927	}
bfictorie	0:8cdad1c73e8e	928
bfictorie	0:8cdad1c73e8e	929	/* Add FCS and trailing flag. */
bfictorie	0:8cdad1c73e8e	930	c = ~fcsOut & 0xFF;
bfictorie	0:8cdad1c73e8e	931	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	932	c = (~fcsOut >> 8) & 0xFF;
bfictorie	0:8cdad1c73e8e	933	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	934	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
bfictorie	0:8cdad1c73e8e	935
bfictorie	0:8cdad1c73e8e	936	/* If we failed to complete the packet, throw it away. */
bfictorie	0:8cdad1c73e8e	937	if (!tailMB) {
bfictorie	0:8cdad1c73e8e	938	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	939	("pppifOutput[%d]: Alloc err - dropping proto=%d\n",
bfictorie	0:8cdad1c73e8e	940	pd, protocol));
bfictorie	0:8cdad1c73e8e	941	pbuf_free(headMB);
bfictorie	0:8cdad1c73e8e	942	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	943	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	944	snmp_inc_ifoutdiscards(netif);
bfictorie	0:8cdad1c73e8e	945	return ERR_MEM;
bfictorie	0:8cdad1c73e8e	946	}
bfictorie	0:8cdad1c73e8e	947
bfictorie	0:8cdad1c73e8e	948	/* Send it. */
bfictorie	0:8cdad1c73e8e	949	PPPDEBUG(LOG_INFO, ("pppifOutput[%d]: proto=0x%"X16_F"\n", pd, protocol));
bfictorie	0:8cdad1c73e8e	950
bfictorie	0:8cdad1c73e8e	951	nPut(pc, headMB);
bfictorie	0:8cdad1c73e8e	952	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	953
bfictorie	0:8cdad1c73e8e	954	return ERR_OK;
bfictorie	0:8cdad1c73e8e	955	}
bfictorie	0:8cdad1c73e8e	956
bfictorie	0:8cdad1c73e8e	957	/* Get and set parameters for the given connection.
bfictorie	0:8cdad1c73e8e	958	* Return 0 on success, an error code on failure. */
bfictorie	0:8cdad1c73e8e	959	int
bfictorie	0:8cdad1c73e8e	960	pppIOCtl(int pd, int cmd, void *arg)
bfictorie	0:8cdad1c73e8e	961	{
bfictorie	0:8cdad1c73e8e	962	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	963	int st = 0;
bfictorie	0:8cdad1c73e8e	964
bfictorie	0:8cdad1c73e8e	965	if (pd < 0 \|\| pd >= NUM_PPP) {
bfictorie	0:8cdad1c73e8e	966	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	967	} else {
bfictorie	0:8cdad1c73e8e	968	switch(cmd) {
bfictorie	0:8cdad1c73e8e	969	case PPPCTLG_UPSTATUS: /* Get the PPP up status. */
bfictorie	0:8cdad1c73e8e	970	if (arg) {
bfictorie	0:8cdad1c73e8e	971	(int )arg = (int)(pc->if_up);
bfictorie	0:8cdad1c73e8e	972	} else {
bfictorie	0:8cdad1c73e8e	973	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	974	}
bfictorie	0:8cdad1c73e8e	975	break;
bfictorie	0:8cdad1c73e8e	976	case PPPCTLS_ERRCODE: /* Set the PPP error code. */
bfictorie	0:8cdad1c73e8e	977	if (arg) {
bfictorie	0:8cdad1c73e8e	978	pc->errCode = (int )arg;
bfictorie	0:8cdad1c73e8e	979	} else {
bfictorie	0:8cdad1c73e8e	980	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	981	}
bfictorie	0:8cdad1c73e8e	982	break;
bfictorie	0:8cdad1c73e8e	983	case PPPCTLG_ERRCODE: /* Get the PPP error code. */
bfictorie	0:8cdad1c73e8e	984	if (arg) {
bfictorie	0:8cdad1c73e8e	985	(int )arg = (int)(pc->errCode);
bfictorie	0:8cdad1c73e8e	986	} else {
bfictorie	0:8cdad1c73e8e	987	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	988	}
bfictorie	0:8cdad1c73e8e	989	break;
bfictorie	0:8cdad1c73e8e	990	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	991	case PPPCTLG_FD: /* Get the fd associated with the ppp */
bfictorie	0:8cdad1c73e8e	992	if (arg) {
bfictorie	0:8cdad1c73e8e	993	(sio_fd_t )arg = pc->fd;
bfictorie	0:8cdad1c73e8e	994	} else {
bfictorie	0:8cdad1c73e8e	995	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	996	}
bfictorie	0:8cdad1c73e8e	997	break;
bfictorie	0:8cdad1c73e8e	998	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	999	default:
bfictorie	0:8cdad1c73e8e	1000	st = PPPERR_PARAM;
bfictorie	0:8cdad1c73e8e	1001	break;
bfictorie	0:8cdad1c73e8e	1002	}
bfictorie	0:8cdad1c73e8e	1003	}
bfictorie	0:8cdad1c73e8e	1004
bfictorie	0:8cdad1c73e8e	1005	return st;
bfictorie	0:8cdad1c73e8e	1006	}
bfictorie	0:8cdad1c73e8e	1007
bfictorie	0:8cdad1c73e8e	1008	/*
bfictorie	0:8cdad1c73e8e	1009	* Return the Maximum Transmission Unit for the given PPP connection.
bfictorie	0:8cdad1c73e8e	1010	*/
bfictorie	0:8cdad1c73e8e	1011	u_short
bfictorie	0:8cdad1c73e8e	1012	pppMTU(int pd)
bfictorie	0:8cdad1c73e8e	1013	{
bfictorie	0:8cdad1c73e8e	1014	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1015	u_short st;
bfictorie	0:8cdad1c73e8e	1016
bfictorie	0:8cdad1c73e8e	1017	/* Validate parameters. */
bfictorie	0:8cdad1c73e8e	1018	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1019	st = 0;
bfictorie	0:8cdad1c73e8e	1020	} else {
bfictorie	0:8cdad1c73e8e	1021	st = pc->mtu;
bfictorie	0:8cdad1c73e8e	1022	}
bfictorie	0:8cdad1c73e8e	1023
bfictorie	0:8cdad1c73e8e	1024	return st;
bfictorie	0:8cdad1c73e8e	1025	}
bfictorie	0:8cdad1c73e8e	1026
bfictorie	0:8cdad1c73e8e	1027	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	1028	int
bfictorie	0:8cdad1c73e8e	1029	pppWriteOverEthernet(int pd, const u_char *s, int n)
bfictorie	0:8cdad1c73e8e	1030	{
bfictorie	0:8cdad1c73e8e	1031	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1032	struct pbuf *pb;
bfictorie	0:8cdad1c73e8e	1033
bfictorie	0:8cdad1c73e8e	1034	/* skip address & flags */
bfictorie	0:8cdad1c73e8e	1035	s += 2;
bfictorie	0:8cdad1c73e8e	1036	n -= 2;
bfictorie	0:8cdad1c73e8e	1037
bfictorie	0:8cdad1c73e8e	1038	LWIP_ASSERT("PPPOE_HDRLEN + n <= 0xffff", PPPOE_HDRLEN + n <= 0xffff);
bfictorie	0:8cdad1c73e8e	1039	pb = pbuf_alloc(PBUF_LINK, (u16_t)(PPPOE_HDRLEN + n), PBUF_RAM);
bfictorie	0:8cdad1c73e8e	1040	if(!pb) {
bfictorie	0:8cdad1c73e8e	1041	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	1042	LINK_STATS_INC(link.proterr);
bfictorie	0:8cdad1c73e8e	1043	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	1044	return PPPERR_ALLOC;
bfictorie	0:8cdad1c73e8e	1045	}
bfictorie	0:8cdad1c73e8e	1046
bfictorie	0:8cdad1c73e8e	1047	pbuf_header(pb, -(s16_t)PPPOE_HDRLEN);
bfictorie	0:8cdad1c73e8e	1048
bfictorie	0:8cdad1c73e8e	1049	pc->lastXMit = sys_jiffies();
bfictorie	0:8cdad1c73e8e	1050
bfictorie	0:8cdad1c73e8e	1051	MEMCPY(pb->payload, s, n);
bfictorie	0:8cdad1c73e8e	1052
bfictorie	0:8cdad1c73e8e	1053	if(pppoe_xmit(pc->pppoe_sc, pb) != ERR_OK) {
bfictorie	0:8cdad1c73e8e	1054	LINK_STATS_INC(link.err);
bfictorie	0:8cdad1c73e8e	1055	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	1056	return PPPERR_DEVICE;
bfictorie	0:8cdad1c73e8e	1057	}
bfictorie	0:8cdad1c73e8e	1058
bfictorie	0:8cdad1c73e8e	1059	snmp_add_ifoutoctets(&pc->netif, (u16_t)n);
bfictorie	0:8cdad1c73e8e	1060	snmp_inc_ifoutucastpkts(&pc->netif);
bfictorie	0:8cdad1c73e8e	1061	LINK_STATS_INC(link.xmit);
bfictorie	0:8cdad1c73e8e	1062	return PPPERR_NONE;
bfictorie	0:8cdad1c73e8e	1063	}
bfictorie	0:8cdad1c73e8e	1064	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	1065
bfictorie	0:8cdad1c73e8e	1066	/*
bfictorie	0:8cdad1c73e8e	1067	* Write n characters to a ppp link.
bfictorie	0:8cdad1c73e8e	1068	* RETURN: >= 0 Number of characters written
bfictorie	0:8cdad1c73e8e	1069	* -1 Failed to write to device
bfictorie	0:8cdad1c73e8e	1070	*/
bfictorie	0:8cdad1c73e8e	1071	int
bfictorie	0:8cdad1c73e8e	1072	pppWrite(int pd, const u_char *s, int n)
bfictorie	0:8cdad1c73e8e	1073	{
bfictorie	0:8cdad1c73e8e	1074	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1075	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	1076	u_char c;
bfictorie	0:8cdad1c73e8e	1077	u_int fcsOut;
bfictorie	0:8cdad1c73e8e	1078	struct pbuf headMB, tailMB;
bfictorie	0:8cdad1c73e8e	1079	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	1080
bfictorie	0:8cdad1c73e8e	1081	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	1082	if(pc->ethif) {
bfictorie	0:8cdad1c73e8e	1083	return pppWriteOverEthernet(pd, s, n);
bfictorie	0:8cdad1c73e8e	1084	}
bfictorie	0:8cdad1c73e8e	1085	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	1086
bfictorie	0:8cdad1c73e8e	1087	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	1088	headMB = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
bfictorie	0:8cdad1c73e8e	1089	if (headMB == NULL) {
bfictorie	0:8cdad1c73e8e	1090	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	1091	LINK_STATS_INC(link.proterr);
bfictorie	0:8cdad1c73e8e	1092	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	1093	return PPPERR_ALLOC;
bfictorie	0:8cdad1c73e8e	1094	}
bfictorie	0:8cdad1c73e8e	1095
bfictorie	0:8cdad1c73e8e	1096	tailMB = headMB;
bfictorie	0:8cdad1c73e8e	1097
bfictorie	0:8cdad1c73e8e	1098	/* If the link has been idle, we'll send a fresh flag character to
bfictorie	0:8cdad1c73e8e	1099	* flush any noise. */
bfictorie	0:8cdad1c73e8e	1100	if ((sys_jiffies() - pc->lastXMit) >= PPP_MAXIDLEFLAG) {
bfictorie	0:8cdad1c73e8e	1101	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
bfictorie	0:8cdad1c73e8e	1102	}
bfictorie	0:8cdad1c73e8e	1103	pc->lastXMit = sys_jiffies();
bfictorie	0:8cdad1c73e8e	1104
bfictorie	0:8cdad1c73e8e	1105	fcsOut = PPP_INITFCS;
bfictorie	0:8cdad1c73e8e	1106	/* Load output buffer. */
bfictorie	0:8cdad1c73e8e	1107	while (n-- > 0) {
bfictorie	0:8cdad1c73e8e	1108	c = *s++;
bfictorie	0:8cdad1c73e8e	1109
bfictorie	0:8cdad1c73e8e	1110	/* Update FCS before checking for special characters. */
bfictorie	0:8cdad1c73e8e	1111	fcsOut = PPP_FCS(fcsOut, c);
bfictorie	0:8cdad1c73e8e	1112
bfictorie	0:8cdad1c73e8e	1113	/* Copy to output buffer escaping special characters. */
bfictorie	0:8cdad1c73e8e	1114	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	1115	}
bfictorie	0:8cdad1c73e8e	1116
bfictorie	0:8cdad1c73e8e	1117	/* Add FCS and trailing flag. */
bfictorie	0:8cdad1c73e8e	1118	c = ~fcsOut & 0xFF;
bfictorie	0:8cdad1c73e8e	1119	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	1120	c = (~fcsOut >> 8) & 0xFF;
bfictorie	0:8cdad1c73e8e	1121	tailMB = pppAppend(c, tailMB, &pc->outACCM);
bfictorie	0:8cdad1c73e8e	1122	tailMB = pppAppend(PPP_FLAG, tailMB, NULL);
bfictorie	0:8cdad1c73e8e	1123
bfictorie	0:8cdad1c73e8e	1124	/* If we failed to complete the packet, throw it away.
bfictorie	0:8cdad1c73e8e	1125	* Otherwise send it. */
bfictorie	0:8cdad1c73e8e	1126	if (!tailMB) {
bfictorie	0:8cdad1c73e8e	1127	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	1128	("pppWrite[%d]: Alloc err - dropping pbuf len=%d\n", pd, headMB->len));
bfictorie	0:8cdad1c73e8e	1129	/"pppWrite[%d]: Alloc err - dropping %d:%.H", pd, headMB->len, LWIP_MIN(headMB->len * 2, 40), headMB->payload)); */
bfictorie	0:8cdad1c73e8e	1130	pbuf_free(headMB);
bfictorie	0:8cdad1c73e8e	1131	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	1132	LINK_STATS_INC(link.proterr);
bfictorie	0:8cdad1c73e8e	1133	snmp_inc_ifoutdiscards(&pc->netif);
bfictorie	0:8cdad1c73e8e	1134	return PPPERR_ALLOC;
bfictorie	0:8cdad1c73e8e	1135	}
bfictorie	0:8cdad1c73e8e	1136
bfictorie	0:8cdad1c73e8e	1137	PPPDEBUG(LOG_INFO, ("pppWrite[%d]: len=%d\n", pd, headMB->len));
bfictorie	0:8cdad1c73e8e	1138	/* "pppWrite[%d]: %d:%.H", pd, headMB->len, LWIP_MIN(headMB->len 2, 40), headMB->payload)); */
bfictorie	0:8cdad1c73e8e	1139	nPut(pc, headMB);
bfictorie	0:8cdad1c73e8e	1140	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	1141
bfictorie	0:8cdad1c73e8e	1142	return PPPERR_NONE;
bfictorie	0:8cdad1c73e8e	1143	}
bfictorie	0:8cdad1c73e8e	1144
bfictorie	0:8cdad1c73e8e	1145	/*
bfictorie	0:8cdad1c73e8e	1146	* ppp_send_config - configure the transmit characteristics of
bfictorie	0:8cdad1c73e8e	1147	* the ppp interface.
bfictorie	0:8cdad1c73e8e	1148	*/
bfictorie	0:8cdad1c73e8e	1149	void
bfictorie	0:8cdad1c73e8e	1150	ppp_send_config( int unit, u16_t mtu, u32_t asyncmap, int pcomp, int accomp)
bfictorie	0:8cdad1c73e8e	1151	{
bfictorie	0:8cdad1c73e8e	1152	PPPControl *pc = &pppControl[unit];
bfictorie	0:8cdad1c73e8e	1153	int i;
bfictorie	0:8cdad1c73e8e	1154
bfictorie	0:8cdad1c73e8e	1155	pc->mtu = mtu;
bfictorie	0:8cdad1c73e8e	1156	pc->pcomp = pcomp;
bfictorie	0:8cdad1c73e8e	1157	pc->accomp = accomp;
bfictorie	0:8cdad1c73e8e	1158
bfictorie	0:8cdad1c73e8e	1159	/* Load the ACCM bits for the 32 control codes. */
bfictorie	0:8cdad1c73e8e	1160	for (i = 0; i < 32/8; i++) {
bfictorie	0:8cdad1c73e8e	1161	pc->outACCM[i] = (u_char)((asyncmap >> (8 * i)) & 0xFF);
bfictorie	0:8cdad1c73e8e	1162	}
bfictorie	0:8cdad1c73e8e	1163	PPPDEBUG(LOG_INFO, ("ppp_send_config[%d]: outACCM=%X %X %X %X\n",
bfictorie	0:8cdad1c73e8e	1164	unit,
bfictorie	0:8cdad1c73e8e	1165	pc->outACCM[0], pc->outACCM[1], pc->outACCM[2], pc->outACCM[3]));
bfictorie	0:8cdad1c73e8e	1166	}
bfictorie	0:8cdad1c73e8e	1167
bfictorie	0:8cdad1c73e8e	1168
bfictorie	0:8cdad1c73e8e	1169	/*
bfictorie	0:8cdad1c73e8e	1170	* ppp_set_xaccm - set the extended transmit ACCM for the interface.
bfictorie	0:8cdad1c73e8e	1171	*/
bfictorie	0:8cdad1c73e8e	1172	void
bfictorie	0:8cdad1c73e8e	1173	ppp_set_xaccm(int unit, ext_accm *accm)
bfictorie	0:8cdad1c73e8e	1174	{
bfictorie	0:8cdad1c73e8e	1175	SMEMCPY(pppControl[unit].outACCM, accm, sizeof(ext_accm));
bfictorie	0:8cdad1c73e8e	1176	PPPDEBUG(LOG_INFO, ("ppp_set_xaccm[%d]: outACCM=%X %X %X %X\n",
bfictorie	0:8cdad1c73e8e	1177	unit,
bfictorie	0:8cdad1c73e8e	1178	pppControl[unit].outACCM[0],
bfictorie	0:8cdad1c73e8e	1179	pppControl[unit].outACCM[1],
bfictorie	0:8cdad1c73e8e	1180	pppControl[unit].outACCM[2],
bfictorie	0:8cdad1c73e8e	1181	pppControl[unit].outACCM[3]));
bfictorie	0:8cdad1c73e8e	1182	}
bfictorie	0:8cdad1c73e8e	1183
bfictorie	0:8cdad1c73e8e	1184
bfictorie	0:8cdad1c73e8e	1185	/*
bfictorie	0:8cdad1c73e8e	1186	* ppp_recv_config - configure the receive-side characteristics of
bfictorie	0:8cdad1c73e8e	1187	* the ppp interface.
bfictorie	0:8cdad1c73e8e	1188	*/
bfictorie	0:8cdad1c73e8e	1189	void
bfictorie	0:8cdad1c73e8e	1190	ppp_recv_config( int unit, int mru, u32_t asyncmap, int pcomp, int accomp)
bfictorie	0:8cdad1c73e8e	1191	{
bfictorie	0:8cdad1c73e8e	1192	PPPControl *pc = &pppControl[unit];
bfictorie	0:8cdad1c73e8e	1193	int i;
bfictorie	0:8cdad1c73e8e	1194	SYS_ARCH_DECL_PROTECT(lev);
bfictorie	0:8cdad1c73e8e	1195
bfictorie	0:8cdad1c73e8e	1196	LWIP_UNUSED_ARG(accomp);
bfictorie	0:8cdad1c73e8e	1197	LWIP_UNUSED_ARG(pcomp);
bfictorie	0:8cdad1c73e8e	1198	LWIP_UNUSED_ARG(mru);
bfictorie	0:8cdad1c73e8e	1199
bfictorie	0:8cdad1c73e8e	1200	/* Load the ACCM bits for the 32 control codes. */
bfictorie	0:8cdad1c73e8e	1201	SYS_ARCH_PROTECT(lev);
bfictorie	0:8cdad1c73e8e	1202	for (i = 0; i < 32 / 8; i++) {
bfictorie	0:8cdad1c73e8e	1203	/* @todo: does this work? ext_accm has been modified from pppd! */
bfictorie	0:8cdad1c73e8e	1204	pc->rx.inACCM[i] = (u_char)(asyncmap >> (i * 8));
bfictorie	0:8cdad1c73e8e	1205	}
bfictorie	0:8cdad1c73e8e	1206	SYS_ARCH_UNPROTECT(lev);
bfictorie	0:8cdad1c73e8e	1207	PPPDEBUG(LOG_INFO, ("ppp_recv_config[%d]: inACCM=%X %X %X %X\n",
bfictorie	0:8cdad1c73e8e	1208	unit,
bfictorie	0:8cdad1c73e8e	1209	pc->rx.inACCM[0], pc->rx.inACCM[1], pc->rx.inACCM[2], pc->rx.inACCM[3]));
bfictorie	0:8cdad1c73e8e	1210	}
bfictorie	0:8cdad1c73e8e	1211
bfictorie	0:8cdad1c73e8e	1212	#if 0
bfictorie	0:8cdad1c73e8e	1213	/*
bfictorie	0:8cdad1c73e8e	1214	* ccp_test - ask kernel whether a given compression method
bfictorie	0:8cdad1c73e8e	1215	* is acceptable for use. Returns 1 if the method and parameters
bfictorie	0:8cdad1c73e8e	1216	* are OK, 0 if the method is known but the parameters are not OK
bfictorie	0:8cdad1c73e8e	1217	* (e.g. code size should be reduced), or -1 if the method is unknown.
bfictorie	0:8cdad1c73e8e	1218	*/
bfictorie	0:8cdad1c73e8e	1219	int
bfictorie	0:8cdad1c73e8e	1220	ccp_test( int unit, int opt_len, int for_transmit, u_char *opt_ptr)
bfictorie	0:8cdad1c73e8e	1221	{
bfictorie	0:8cdad1c73e8e	1222	return 0; /* XXX Currently no compression. */
bfictorie	0:8cdad1c73e8e	1223	}
bfictorie	0:8cdad1c73e8e	1224
bfictorie	0:8cdad1c73e8e	1225	/*
bfictorie	0:8cdad1c73e8e	1226	* ccp_flags_set - inform kernel about the current state of CCP.
bfictorie	0:8cdad1c73e8e	1227	*/
bfictorie	0:8cdad1c73e8e	1228	void
bfictorie	0:8cdad1c73e8e	1229	ccp_flags_set(int unit, int isopen, int isup)
bfictorie	0:8cdad1c73e8e	1230	{
bfictorie	0:8cdad1c73e8e	1231	/* XXX */
bfictorie	0:8cdad1c73e8e	1232	}
bfictorie	0:8cdad1c73e8e	1233
bfictorie	0:8cdad1c73e8e	1234	/*
bfictorie	0:8cdad1c73e8e	1235	* ccp_fatal_error - returns 1 if decompression was disabled as a
bfictorie	0:8cdad1c73e8e	1236	* result of an error detected after decompression of a packet,
bfictorie	0:8cdad1c73e8e	1237	* 0 otherwise. This is necessary because of patent nonsense.
bfictorie	0:8cdad1c73e8e	1238	*/
bfictorie	0:8cdad1c73e8e	1239	int
bfictorie	0:8cdad1c73e8e	1240	ccp_fatal_error(int unit)
bfictorie	0:8cdad1c73e8e	1241	{
bfictorie	0:8cdad1c73e8e	1242	/* XXX */
bfictorie	0:8cdad1c73e8e	1243	return 0;
bfictorie	0:8cdad1c73e8e	1244	}
bfictorie	0:8cdad1c73e8e	1245	#endif
bfictorie	0:8cdad1c73e8e	1246
bfictorie	0:8cdad1c73e8e	1247	/*
bfictorie	0:8cdad1c73e8e	1248	* get_idle_time - return how long the link has been idle.
bfictorie	0:8cdad1c73e8e	1249	*/
bfictorie	0:8cdad1c73e8e	1250	int
bfictorie	0:8cdad1c73e8e	1251	get_idle_time(int u, struct ppp_idle *ip)
bfictorie	0:8cdad1c73e8e	1252	{
bfictorie	0:8cdad1c73e8e	1253	/* XXX */
bfictorie	0:8cdad1c73e8e	1254	LWIP_UNUSED_ARG(u);
bfictorie	0:8cdad1c73e8e	1255	LWIP_UNUSED_ARG(ip);
bfictorie	0:8cdad1c73e8e	1256
bfictorie	0:8cdad1c73e8e	1257	return 0;
bfictorie	0:8cdad1c73e8e	1258	}
bfictorie	0:8cdad1c73e8e	1259
bfictorie	0:8cdad1c73e8e	1260
bfictorie	0:8cdad1c73e8e	1261	/*
bfictorie	0:8cdad1c73e8e	1262	* Return user specified netmask, modified by any mask we might determine
bfictorie	0:8cdad1c73e8e	1263	* for address `addr' (in network byte order).
bfictorie	0:8cdad1c73e8e	1264	* Here we scan through the system's list of interfaces, looking for
bfictorie	0:8cdad1c73e8e	1265	* any non-point-to-point interfaces which might appear to be on the same
bfictorie	0:8cdad1c73e8e	1266	* network as `addr'. If we find any, we OR in their netmask to the
bfictorie	0:8cdad1c73e8e	1267	* user-specified netmask.
bfictorie	0:8cdad1c73e8e	1268	*/
bfictorie	0:8cdad1c73e8e	1269	u32_t
bfictorie	0:8cdad1c73e8e	1270	GetMask(u32_t addr)
bfictorie	0:8cdad1c73e8e	1271	{
bfictorie	0:8cdad1c73e8e	1272	u32_t mask, nmask;
bfictorie	0:8cdad1c73e8e	1273
bfictorie	0:8cdad1c73e8e	1274	htonl(addr);
bfictorie	0:8cdad1c73e8e	1275	if (IP_CLASSA(addr)) { /* determine network mask for address class */
bfictorie	0:8cdad1c73e8e	1276	nmask = IP_CLASSA_NET;
bfictorie	0:8cdad1c73e8e	1277	} else if (IP_CLASSB(addr)) {
bfictorie	0:8cdad1c73e8e	1278	nmask = IP_CLASSB_NET;
bfictorie	0:8cdad1c73e8e	1279	} else {
bfictorie	0:8cdad1c73e8e	1280	nmask = IP_CLASSC_NET;
bfictorie	0:8cdad1c73e8e	1281	}
bfictorie	0:8cdad1c73e8e	1282
bfictorie	0:8cdad1c73e8e	1283	/* class D nets are disallowed by bad_ip_adrs */
bfictorie	0:8cdad1c73e8e	1284	mask = subnetMask \| htonl(nmask);
bfictorie	0:8cdad1c73e8e	1285
bfictorie	0:8cdad1c73e8e	1286	/* XXX
bfictorie	0:8cdad1c73e8e	1287	* Scan through the system's network interfaces.
bfictorie	0:8cdad1c73e8e	1288	* Get each netmask and OR them into our mask.
bfictorie	0:8cdad1c73e8e	1289	*/
bfictorie	0:8cdad1c73e8e	1290
bfictorie	0:8cdad1c73e8e	1291	return mask;
bfictorie	0:8cdad1c73e8e	1292	}
bfictorie	0:8cdad1c73e8e	1293
bfictorie	0:8cdad1c73e8e	1294	/*
bfictorie	0:8cdad1c73e8e	1295	* sifvjcomp - config tcp header compression
bfictorie	0:8cdad1c73e8e	1296	*/
bfictorie	0:8cdad1c73e8e	1297	int
bfictorie	0:8cdad1c73e8e	1298	sifvjcomp(int pd, int vjcomp, u8_t cidcomp, u8_t maxcid)
bfictorie	0:8cdad1c73e8e	1299	{
bfictorie	0:8cdad1c73e8e	1300	#if PPPOS_SUPPORT && VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	1301	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1302
bfictorie	0:8cdad1c73e8e	1303	pc->vjEnabled = vjcomp;
bfictorie	0:8cdad1c73e8e	1304	pc->vjComp.compressSlot = cidcomp;
bfictorie	0:8cdad1c73e8e	1305	pc->vjComp.maxSlotIndex = maxcid;
bfictorie	0:8cdad1c73e8e	1306	PPPDEBUG(LOG_INFO, ("sifvjcomp: VJ compress enable=%d slot=%d max slot=%d\n",
bfictorie	0:8cdad1c73e8e	1307	vjcomp, cidcomp, maxcid));
bfictorie	0:8cdad1c73e8e	1308	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1309	LWIP_UNUSED_ARG(pd);
bfictorie	0:8cdad1c73e8e	1310	LWIP_UNUSED_ARG(vjcomp);
bfictorie	0:8cdad1c73e8e	1311	LWIP_UNUSED_ARG(cidcomp);
bfictorie	0:8cdad1c73e8e	1312	LWIP_UNUSED_ARG(maxcid);
bfictorie	0:8cdad1c73e8e	1313	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1314
bfictorie	0:8cdad1c73e8e	1315	return 0;
bfictorie	0:8cdad1c73e8e	1316	}
bfictorie	0:8cdad1c73e8e	1317
bfictorie	0:8cdad1c73e8e	1318	/*
bfictorie	0:8cdad1c73e8e	1319	* pppifNetifInit - netif init callback
bfictorie	0:8cdad1c73e8e	1320	*/
bfictorie	0:8cdad1c73e8e	1321	static err_t
bfictorie	0:8cdad1c73e8e	1322	pppifNetifInit(struct netif *netif)
bfictorie	0:8cdad1c73e8e	1323	{
bfictorie	0:8cdad1c73e8e	1324	netif->name[0] = 'p';
bfictorie	0:8cdad1c73e8e	1325	netif->name[1] = 'p';
bfictorie	0:8cdad1c73e8e	1326	netif->output = pppifOutput;
bfictorie	0:8cdad1c73e8e	1327	netif->mtu = pppMTU((int)(size_t)netif->state);
bfictorie	0:8cdad1c73e8e	1328	netif->flags = NETIF_FLAG_POINTTOPOINT \| NETIF_FLAG_LINK_UP;
bfictorie	0:8cdad1c73e8e	1329	#if LWIP_NETIF_HOSTNAME
bfictorie	0:8cdad1c73e8e	1330	/* @todo: Initialize interface hostname */
bfictorie	0:8cdad1c73e8e	1331	/* netif_set_hostname(netif, "lwip"); */
bfictorie	0:8cdad1c73e8e	1332	#endif /* LWIP_NETIF_HOSTNAME */
bfictorie	0:8cdad1c73e8e	1333	return ERR_OK;
bfictorie	0:8cdad1c73e8e	1334	}
bfictorie	0:8cdad1c73e8e	1335
bfictorie	0:8cdad1c73e8e	1336
bfictorie	0:8cdad1c73e8e	1337	/*
bfictorie	0:8cdad1c73e8e	1338	* sifup - Config the interface up and enable IP packets to pass.
bfictorie	0:8cdad1c73e8e	1339	*/
bfictorie	0:8cdad1c73e8e	1340	int
bfictorie	0:8cdad1c73e8e	1341	sifup(int pd)
bfictorie	0:8cdad1c73e8e	1342	{
bfictorie	0:8cdad1c73e8e	1343	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1344	int st = 1;
bfictorie	0:8cdad1c73e8e	1345
bfictorie	0:8cdad1c73e8e	1346	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1347	st = 0;
bfictorie	0:8cdad1c73e8e	1348	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1349	} else {
bfictorie	0:8cdad1c73e8e	1350	netif_remove(&pc->netif);
bfictorie	0:8cdad1c73e8e	1351	if (netif_add(&pc->netif, &pc->addrs.our_ipaddr, &pc->addrs.netmask,
bfictorie	0:8cdad1c73e8e	1352	&pc->addrs.his_ipaddr, (void *)(size_t)pd, pppifNetifInit, ip_input)) {
bfictorie	0:8cdad1c73e8e	1353	netif_set_up(&pc->netif);
bfictorie	0:8cdad1c73e8e	1354	pc->if_up = 1;
bfictorie	0:8cdad1c73e8e	1355	pc->errCode = PPPERR_NONE;
bfictorie	0:8cdad1c73e8e	1356
bfictorie	0:8cdad1c73e8e	1357	PPPDEBUG(LOG_DEBUG, ("sifup: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
bfictorie	0:8cdad1c73e8e	1358	if (pc->linkStatusCB) {
bfictorie	0:8cdad1c73e8e	1359	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode, &pc->addrs);
bfictorie	0:8cdad1c73e8e	1360	}
bfictorie	0:8cdad1c73e8e	1361	} else {
bfictorie	0:8cdad1c73e8e	1362	st = 0;
bfictorie	0:8cdad1c73e8e	1363	PPPDEBUG(LOG_ERR, ("sifup[%d]: netif_add failed\n", pd));
bfictorie	0:8cdad1c73e8e	1364	}
bfictorie	0:8cdad1c73e8e	1365	}
bfictorie	0:8cdad1c73e8e	1366
bfictorie	0:8cdad1c73e8e	1367	return st;
bfictorie	0:8cdad1c73e8e	1368	}
bfictorie	0:8cdad1c73e8e	1369
bfictorie	0:8cdad1c73e8e	1370	/*
bfictorie	0:8cdad1c73e8e	1371	* sifnpmode - Set the mode for handling packets for a given NP.
bfictorie	0:8cdad1c73e8e	1372	*/
bfictorie	0:8cdad1c73e8e	1373	int
bfictorie	0:8cdad1c73e8e	1374	sifnpmode(int u, int proto, enum NPmode mode)
bfictorie	0:8cdad1c73e8e	1375	{
bfictorie	0:8cdad1c73e8e	1376	LWIP_UNUSED_ARG(u);
bfictorie	0:8cdad1c73e8e	1377	LWIP_UNUSED_ARG(proto);
bfictorie	0:8cdad1c73e8e	1378	LWIP_UNUSED_ARG(mode);
bfictorie	0:8cdad1c73e8e	1379	return 0;
bfictorie	0:8cdad1c73e8e	1380	}
bfictorie	0:8cdad1c73e8e	1381
bfictorie	0:8cdad1c73e8e	1382	/*
bfictorie	0:8cdad1c73e8e	1383	* sifdown - Config the interface down and disable IP.
bfictorie	0:8cdad1c73e8e	1384	*/
bfictorie	0:8cdad1c73e8e	1385	int
bfictorie	0:8cdad1c73e8e	1386	sifdown(int pd)
bfictorie	0:8cdad1c73e8e	1387	{
bfictorie	0:8cdad1c73e8e	1388	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1389	int st = 1;
bfictorie	0:8cdad1c73e8e	1390
bfictorie	0:8cdad1c73e8e	1391	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1392	st = 0;
bfictorie	0:8cdad1c73e8e	1393	PPPDEBUG(LOG_WARNING, ("sifdown[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1394	} else {
bfictorie	0:8cdad1c73e8e	1395	pc->if_up = 0;
bfictorie	0:8cdad1c73e8e	1396	/* make sure the netif status callback is called */
bfictorie	0:8cdad1c73e8e	1397	netif_set_down(&pc->netif);
bfictorie	0:8cdad1c73e8e	1398	netif_remove(&pc->netif);
bfictorie	0:8cdad1c73e8e	1399	PPPDEBUG(LOG_DEBUG, ("sifdown: unit %d: linkStatusCB=%p errCode=%d\n", pd, pc->linkStatusCB, pc->errCode));
bfictorie	0:8cdad1c73e8e	1400	if (pc->linkStatusCB) {
bfictorie	0:8cdad1c73e8e	1401	pc->linkStatusCB(pc->linkStatusCtx, PPPERR_CONNECT, NULL);
bfictorie	0:8cdad1c73e8e	1402	}
bfictorie	0:8cdad1c73e8e	1403	}
bfictorie	0:8cdad1c73e8e	1404	return st;
bfictorie	0:8cdad1c73e8e	1405	}
bfictorie	0:8cdad1c73e8e	1406
bfictorie	0:8cdad1c73e8e	1407	/**
bfictorie	0:8cdad1c73e8e	1408	* sifaddr - Config the interface IP addresses and netmask.
bfictorie	0:8cdad1c73e8e	1409	* @param pd Interface unit ???
bfictorie	0:8cdad1c73e8e	1410	* @param o Our IP address ???
bfictorie	0:8cdad1c73e8e	1411	* @param h His IP address ???
bfictorie	0:8cdad1c73e8e	1412	* @param m IP subnet mask ???
bfictorie	0:8cdad1c73e8e	1413	* @param ns1 Primary DNS
bfictorie	0:8cdad1c73e8e	1414	* @param ns2 Secondary DNS
bfictorie	0:8cdad1c73e8e	1415	*/
bfictorie	0:8cdad1c73e8e	1416	int
bfictorie	0:8cdad1c73e8e	1417	sifaddr( int pd, u32_t o, u32_t h, u32_t m, u32_t ns1, u32_t ns2)
bfictorie	0:8cdad1c73e8e	1418	{
bfictorie	0:8cdad1c73e8e	1419	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1420	int st = 1;
bfictorie	0:8cdad1c73e8e	1421
bfictorie	0:8cdad1c73e8e	1422	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1423	st = 0;
bfictorie	0:8cdad1c73e8e	1424	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1425	} else {
bfictorie	0:8cdad1c73e8e	1426	SMEMCPY(&pc->addrs.our_ipaddr, &o, sizeof(o));
bfictorie	0:8cdad1c73e8e	1427	SMEMCPY(&pc->addrs.his_ipaddr, &h, sizeof(h));
bfictorie	0:8cdad1c73e8e	1428	SMEMCPY(&pc->addrs.netmask, &m, sizeof(m));
bfictorie	0:8cdad1c73e8e	1429	SMEMCPY(&pc->addrs.dns1, &ns1, sizeof(ns1));
bfictorie	0:8cdad1c73e8e	1430	SMEMCPY(&pc->addrs.dns2, &ns2, sizeof(ns2));
bfictorie	0:8cdad1c73e8e	1431	}
bfictorie	0:8cdad1c73e8e	1432	return st;
bfictorie	0:8cdad1c73e8e	1433	}
bfictorie	0:8cdad1c73e8e	1434
bfictorie	0:8cdad1c73e8e	1435	/**
bfictorie	0:8cdad1c73e8e	1436	* cifaddr - Clear the interface IP addresses, and delete routes
bfictorie	0:8cdad1c73e8e	1437	* through the interface if possible.
bfictorie	0:8cdad1c73e8e	1438	* @param pd Interface unit ???
bfictorie	0:8cdad1c73e8e	1439	* @param o Our IP address ???
bfictorie	0:8cdad1c73e8e	1440	* @param h IP broadcast address ???
bfictorie	0:8cdad1c73e8e	1441	*/
bfictorie	0:8cdad1c73e8e	1442	int
bfictorie	0:8cdad1c73e8e	1443	cifaddr( int pd, u32_t o, u32_t h)
bfictorie	0:8cdad1c73e8e	1444	{
bfictorie	0:8cdad1c73e8e	1445	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1446	int st = 1;
bfictorie	0:8cdad1c73e8e	1447
bfictorie	0:8cdad1c73e8e	1448	LWIP_UNUSED_ARG(o);
bfictorie	0:8cdad1c73e8e	1449	LWIP_UNUSED_ARG(h);
bfictorie	0:8cdad1c73e8e	1450	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1451	st = 0;
bfictorie	0:8cdad1c73e8e	1452	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1453	} else {
bfictorie	0:8cdad1c73e8e	1454	IP4_ADDR(&pc->addrs.our_ipaddr, 0,0,0,0);
bfictorie	0:8cdad1c73e8e	1455	IP4_ADDR(&pc->addrs.his_ipaddr, 0,0,0,0);
bfictorie	0:8cdad1c73e8e	1456	IP4_ADDR(&pc->addrs.netmask, 255,255,255,0);
bfictorie	0:8cdad1c73e8e	1457	IP4_ADDR(&pc->addrs.dns1, 0,0,0,0);
bfictorie	0:8cdad1c73e8e	1458	IP4_ADDR(&pc->addrs.dns2, 0,0,0,0);
bfictorie	0:8cdad1c73e8e	1459	}
bfictorie	0:8cdad1c73e8e	1460	return st;
bfictorie	0:8cdad1c73e8e	1461	}
bfictorie	0:8cdad1c73e8e	1462
bfictorie	0:8cdad1c73e8e	1463	/*
bfictorie	0:8cdad1c73e8e	1464	* sifdefaultroute - assign a default route through the address given.
bfictorie	0:8cdad1c73e8e	1465	*/
bfictorie	0:8cdad1c73e8e	1466	int
bfictorie	0:8cdad1c73e8e	1467	sifdefaultroute(int pd, u32_t l, u32_t g)
bfictorie	0:8cdad1c73e8e	1468	{
bfictorie	0:8cdad1c73e8e	1469	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1470	int st = 1;
bfictorie	0:8cdad1c73e8e	1471
bfictorie	0:8cdad1c73e8e	1472	LWIP_UNUSED_ARG(l);
bfictorie	0:8cdad1c73e8e	1473	LWIP_UNUSED_ARG(g);
bfictorie	0:8cdad1c73e8e	1474
bfictorie	0:8cdad1c73e8e	1475	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1476	st = 0;
bfictorie	0:8cdad1c73e8e	1477	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1478	} else {
bfictorie	0:8cdad1c73e8e	1479	netif_set_default(&pc->netif);
bfictorie	0:8cdad1c73e8e	1480	}
bfictorie	0:8cdad1c73e8e	1481
bfictorie	0:8cdad1c73e8e	1482	/* TODO: check how PPP handled the netMask, previously not set by ipSetDefault */
bfictorie	0:8cdad1c73e8e	1483
bfictorie	0:8cdad1c73e8e	1484	return st;
bfictorie	0:8cdad1c73e8e	1485	}
bfictorie	0:8cdad1c73e8e	1486
bfictorie	0:8cdad1c73e8e	1487	/*
bfictorie	0:8cdad1c73e8e	1488	* cifdefaultroute - delete a default route through the address given.
bfictorie	0:8cdad1c73e8e	1489	*/
bfictorie	0:8cdad1c73e8e	1490	int
bfictorie	0:8cdad1c73e8e	1491	cifdefaultroute(int pd, u32_t l, u32_t g)
bfictorie	0:8cdad1c73e8e	1492	{
bfictorie	0:8cdad1c73e8e	1493	PPPControl *pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1494	int st = 1;
bfictorie	0:8cdad1c73e8e	1495
bfictorie	0:8cdad1c73e8e	1496	LWIP_UNUSED_ARG(l);
bfictorie	0:8cdad1c73e8e	1497	LWIP_UNUSED_ARG(g);
bfictorie	0:8cdad1c73e8e	1498
bfictorie	0:8cdad1c73e8e	1499	if (pd < 0 \|\| pd >= NUM_PPP \|\| !pc->openFlag) {
bfictorie	0:8cdad1c73e8e	1500	st = 0;
bfictorie	0:8cdad1c73e8e	1501	PPPDEBUG(LOG_WARNING, ("sifup[%d]: bad parms\n", pd));
bfictorie	0:8cdad1c73e8e	1502	} else {
bfictorie	0:8cdad1c73e8e	1503	netif_set_default(NULL);
bfictorie	0:8cdad1c73e8e	1504	}
bfictorie	0:8cdad1c73e8e	1505
bfictorie	0:8cdad1c73e8e	1506	return st;
bfictorie	0:8cdad1c73e8e	1507	}
bfictorie	0:8cdad1c73e8e	1508
bfictorie	0:8cdad1c73e8e	1509	/**********************************/
bfictorie	0:8cdad1c73e8e	1510	/* LOCAL FUNCTION DEFINITIONS */
bfictorie	0:8cdad1c73e8e	1511	/**********************************/
bfictorie	0:8cdad1c73e8e	1512
bfictorie	0:8cdad1c73e8e	1513	#if PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD
bfictorie	0:8cdad1c73e8e	1514	/* The main PPP process function. This implements the state machine according
bfictorie	0:8cdad1c73e8e	1515	* to section 4 of RFC 1661: The Point-To-Point Protocol. */
bfictorie	0:8cdad1c73e8e	1516	static void
bfictorie	0:8cdad1c73e8e	1517	pppInputThread(void *arg)
bfictorie	0:8cdad1c73e8e	1518	{
bfictorie	0:8cdad1c73e8e	1519	int count;
bfictorie	0:8cdad1c73e8e	1520	PPPControlRx *pcrx = arg;
bfictorie	0:8cdad1c73e8e	1521
bfictorie	0:8cdad1c73e8e	1522	while (lcp_phase[pcrx->pd] != PHASE_DEAD) {
bfictorie	0:8cdad1c73e8e	1523	count = sio_read(pcrx->fd, pcrx->rxbuf, PPPOS_RX_BUFSIZE);
bfictorie	0:8cdad1c73e8e	1524	if(count > 0) {
bfictorie	0:8cdad1c73e8e	1525	pppInProc(pcrx, pcrx->rxbuf, count);
bfictorie	0:8cdad1c73e8e	1526	} else {
bfictorie	0:8cdad1c73e8e	1527	/* nothing received, give other tasks a chance to run */
bfictorie	0:8cdad1c73e8e	1528	sys_msleep(1);
bfictorie	0:8cdad1c73e8e	1529	}
bfictorie	0:8cdad1c73e8e	1530	}
bfictorie	0:8cdad1c73e8e	1531	}
bfictorie	0:8cdad1c73e8e	1532	#endif /* PPPOS_SUPPORT && PPP_INPROC_OWNTHREAD */
bfictorie	0:8cdad1c73e8e	1533
bfictorie	0:8cdad1c73e8e	1534	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	1535
bfictorie	0:8cdad1c73e8e	1536	void
bfictorie	0:8cdad1c73e8e	1537	pppOverEthernetInitFailed(int pd)
bfictorie	0:8cdad1c73e8e	1538	{
bfictorie	0:8cdad1c73e8e	1539	PPPControl* pc;
bfictorie	0:8cdad1c73e8e	1540
bfictorie	0:8cdad1c73e8e	1541	pppHup(pd);
bfictorie	0:8cdad1c73e8e	1542	pppStop(pd);
bfictorie	0:8cdad1c73e8e	1543
bfictorie	0:8cdad1c73e8e	1544	pc = &pppControl[pd];
bfictorie	0:8cdad1c73e8e	1545	pppoe_destroy(&pc->netif);
bfictorie	0:8cdad1c73e8e	1546	pc->openFlag = 0;
bfictorie	0:8cdad1c73e8e	1547
bfictorie	0:8cdad1c73e8e	1548	if(pc->linkStatusCB) {
bfictorie	0:8cdad1c73e8e	1549	pc->linkStatusCB(pc->linkStatusCtx, pc->errCode ? pc->errCode : PPPERR_PROTOCOL, NULL);
bfictorie	0:8cdad1c73e8e	1550	}
bfictorie	0:8cdad1c73e8e	1551	}
bfictorie	0:8cdad1c73e8e	1552
bfictorie	0:8cdad1c73e8e	1553	static void
bfictorie	0:8cdad1c73e8e	1554	pppOverEthernetLinkStatusCB(int pd, int up)
bfictorie	0:8cdad1c73e8e	1555	{
bfictorie	0:8cdad1c73e8e	1556	if(up) {
bfictorie	0:8cdad1c73e8e	1557	PPPDEBUG(LOG_INFO, ("pppOverEthernetLinkStatusCB: unit %d: Connecting\n", pd));
bfictorie	0:8cdad1c73e8e	1558	pppStart(pd);
bfictorie	0:8cdad1c73e8e	1559	} else {
bfictorie	0:8cdad1c73e8e	1560	pppOverEthernetInitFailed(pd);
bfictorie	0:8cdad1c73e8e	1561	}
bfictorie	0:8cdad1c73e8e	1562	}
bfictorie	0:8cdad1c73e8e	1563	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	1564
bfictorie	0:8cdad1c73e8e	1565	struct pbuf *
bfictorie	0:8cdad1c73e8e	1566	pppSingleBuf(struct pbuf *p)
bfictorie	0:8cdad1c73e8e	1567	{
bfictorie	0:8cdad1c73e8e	1568	struct pbuf q, b;
bfictorie	0:8cdad1c73e8e	1569	u_char *pl;
bfictorie	0:8cdad1c73e8e	1570
bfictorie	0:8cdad1c73e8e	1571	if(p->tot_len == p->len) {
bfictorie	0:8cdad1c73e8e	1572	return p;
bfictorie	0:8cdad1c73e8e	1573	}
bfictorie	0:8cdad1c73e8e	1574
bfictorie	0:8cdad1c73e8e	1575	q = pbuf_alloc(PBUF_RAW, p->tot_len, PBUF_RAM);
bfictorie	0:8cdad1c73e8e	1576	if(!q) {
bfictorie	0:8cdad1c73e8e	1577	PPPDEBUG(LOG_ERR,
bfictorie	0:8cdad1c73e8e	1578	("pppSingleBuf: unable to alloc new buf (%d)\n", p->tot_len));
bfictorie	0:8cdad1c73e8e	1579	return p; /* live dangerously */
bfictorie	0:8cdad1c73e8e	1580	}
bfictorie	0:8cdad1c73e8e	1581
bfictorie	0:8cdad1c73e8e	1582	for(b = p, pl = (u_char *) q->payload; b != NULL; b = b->next) {
bfictorie	0:8cdad1c73e8e	1583	MEMCPY(pl, b->payload, b->len);
bfictorie	0:8cdad1c73e8e	1584	pl += b->len;
bfictorie	0:8cdad1c73e8e	1585	}
bfictorie	0:8cdad1c73e8e	1586
bfictorie	0:8cdad1c73e8e	1587	pbuf_free(p);
bfictorie	0:8cdad1c73e8e	1588
bfictorie	0:8cdad1c73e8e	1589	return q;
bfictorie	0:8cdad1c73e8e	1590	}
bfictorie	0:8cdad1c73e8e	1591
bfictorie	0:8cdad1c73e8e	1592	struct pppInputHeader {
bfictorie	0:8cdad1c73e8e	1593	int unit;
bfictorie	0:8cdad1c73e8e	1594	u16_t proto;
bfictorie	0:8cdad1c73e8e	1595	};
bfictorie	0:8cdad1c73e8e	1596
bfictorie	0:8cdad1c73e8e	1597	/*
bfictorie	0:8cdad1c73e8e	1598	* Pass the processed input packet to the appropriate handler.
bfictorie	0:8cdad1c73e8e	1599	* This function and all handlers run in the context of the tcpip_thread
bfictorie	0:8cdad1c73e8e	1600	*/
bfictorie	0:8cdad1c73e8e	1601	static void
bfictorie	0:8cdad1c73e8e	1602	pppInput(void *arg)
bfictorie	0:8cdad1c73e8e	1603	{
bfictorie	0:8cdad1c73e8e	1604	struct pbuf nb = (struct pbuf )arg;
bfictorie	0:8cdad1c73e8e	1605	u16_t protocol;
bfictorie	0:8cdad1c73e8e	1606	int pd;
bfictorie	0:8cdad1c73e8e	1607
bfictorie	0:8cdad1c73e8e	1608	pd = ((struct pppInputHeader *)nb->payload)->unit;
bfictorie	0:8cdad1c73e8e	1609	protocol = ((struct pppInputHeader *)nb->payload)->proto;
bfictorie	0:8cdad1c73e8e	1610
bfictorie	0:8cdad1c73e8e	1611	if(pbuf_header(nb, -(int)sizeof(struct pppInputHeader))) {
bfictorie	0:8cdad1c73e8e	1612	LWIP_ASSERT("pbuf_header failed\n", 0);
bfictorie	0:8cdad1c73e8e	1613	goto drop;
bfictorie	0:8cdad1c73e8e	1614	}
bfictorie	0:8cdad1c73e8e	1615
bfictorie	0:8cdad1c73e8e	1616	LINK_STATS_INC(link.recv);
bfictorie	0:8cdad1c73e8e	1617	snmp_inc_ifinucastpkts(&pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1618	snmp_add_ifinoctets(&pppControl[pd].netif, nb->tot_len);
bfictorie	0:8cdad1c73e8e	1619
bfictorie	0:8cdad1c73e8e	1620	/*
bfictorie	0:8cdad1c73e8e	1621	* Toss all non-LCP packets unless LCP is OPEN.
bfictorie	0:8cdad1c73e8e	1622	* Until we get past the authentication phase, toss all packets
bfictorie	0:8cdad1c73e8e	1623	* except LCP, LQR and authentication packets.
bfictorie	0:8cdad1c73e8e	1624	*/
bfictorie	0:8cdad1c73e8e	1625	if((lcp_phase[pd] <= PHASE_AUTHENTICATE) && (protocol != PPP_LCP)) {
bfictorie	0:8cdad1c73e8e	1626	if(!((protocol == PPP_LQR) \|\| (protocol == PPP_PAP) \|\| (protocol == PPP_CHAP)) \|\|
bfictorie	0:8cdad1c73e8e	1627	(lcp_phase[pd] != PHASE_AUTHENTICATE)) {
bfictorie	0:8cdad1c73e8e	1628	PPPDEBUG(LOG_INFO, ("pppInput: discarding proto 0x%"X16_F" in phase %d\n", protocol, lcp_phase[pd]));
bfictorie	0:8cdad1c73e8e	1629	goto drop;
bfictorie	0:8cdad1c73e8e	1630	}
bfictorie	0:8cdad1c73e8e	1631	}
bfictorie	0:8cdad1c73e8e	1632
bfictorie	0:8cdad1c73e8e	1633	switch(protocol) {
bfictorie	0:8cdad1c73e8e	1634	case PPP_VJC_COMP: /* VJ compressed TCP */
bfictorie	0:8cdad1c73e8e	1635	#if PPPOS_SUPPORT && VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	1636	PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_comp in pbuf len=%d\n", pd, nb->len));
bfictorie	0:8cdad1c73e8e	1637	/*
bfictorie	0:8cdad1c73e8e	1638	* Clip off the VJ header and prepend the rebuilt TCP/IP header and
bfictorie	0:8cdad1c73e8e	1639	* pass the result to IP.
bfictorie	0:8cdad1c73e8e	1640	*/
bfictorie	0:8cdad1c73e8e	1641	if ((vj_uncompress_tcp(&nb, &pppControl[pd].vjComp) >= 0) && (pppControl[pd].netif.input)) {
bfictorie	0:8cdad1c73e8e	1642	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1643	return;
bfictorie	0:8cdad1c73e8e	1644	}
bfictorie	0:8cdad1c73e8e	1645	/* Something's wrong so drop it. */
bfictorie	0:8cdad1c73e8e	1646	PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ compressed\n", pd));
bfictorie	0:8cdad1c73e8e	1647	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1648	/* No handler for this protocol so drop the packet. */
bfictorie	0:8cdad1c73e8e	1649	PPPDEBUG(LOG_INFO, ("pppInput[%d]: drop VJ Comp in %d:%s\n", pd, nb->len, nb->payload));
bfictorie	0:8cdad1c73e8e	1650	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1651	break;
bfictorie	0:8cdad1c73e8e	1652
bfictorie	0:8cdad1c73e8e	1653	case PPP_VJC_UNCOMP: /* VJ uncompressed TCP */
bfictorie	0:8cdad1c73e8e	1654	#if PPPOS_SUPPORT && VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	1655	PPPDEBUG(LOG_INFO, ("pppInput[%d]: vj_un in pbuf len=%d\n", pd, nb->len));
bfictorie	0:8cdad1c73e8e	1656	/*
bfictorie	0:8cdad1c73e8e	1657	* Process the TCP/IP header for VJ header compression and then pass
bfictorie	0:8cdad1c73e8e	1658	* the packet to IP.
bfictorie	0:8cdad1c73e8e	1659	*/
bfictorie	0:8cdad1c73e8e	1660	if ((vj_uncompress_uncomp(nb, &pppControl[pd].vjComp) >= 0) && pppControl[pd].netif.input) {
bfictorie	0:8cdad1c73e8e	1661	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1662	return;
bfictorie	0:8cdad1c73e8e	1663	}
bfictorie	0:8cdad1c73e8e	1664	/* Something's wrong so drop it. */
bfictorie	0:8cdad1c73e8e	1665	PPPDEBUG(LOG_WARNING, ("pppInput[%d]: Dropping VJ uncompressed\n", pd));
bfictorie	0:8cdad1c73e8e	1666	#else /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1667	/* No handler for this protocol so drop the packet. */
bfictorie	0:8cdad1c73e8e	1668	PPPDEBUG(LOG_INFO,
bfictorie	0:8cdad1c73e8e	1669	("pppInput[%d]: drop VJ UnComp in %d:.*H\n",
bfictorie	0:8cdad1c73e8e	1670	pd, nb->len, LWIP_MIN(nb->len * 2, 40), nb->payload));
bfictorie	0:8cdad1c73e8e	1671	#endif /* PPPOS_SUPPORT && VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1672	break;
bfictorie	0:8cdad1c73e8e	1673
bfictorie	0:8cdad1c73e8e	1674	case PPP_IP: /* Internet Protocol */
bfictorie	0:8cdad1c73e8e	1675	PPPDEBUG(LOG_INFO, ("pppInput[%d]: ip in pbuf len=%d\n", pd, nb->len));
bfictorie	0:8cdad1c73e8e	1676	if (pppControl[pd].netif.input) {
bfictorie	0:8cdad1c73e8e	1677	pppControl[pd].netif.input(nb, &pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1678	return;
bfictorie	0:8cdad1c73e8e	1679	}
bfictorie	0:8cdad1c73e8e	1680	break;
bfictorie	0:8cdad1c73e8e	1681
bfictorie	0:8cdad1c73e8e	1682	default: {
bfictorie	0:8cdad1c73e8e	1683	struct protent *protp;
bfictorie	0:8cdad1c73e8e	1684	int i;
bfictorie	0:8cdad1c73e8e	1685
bfictorie	0:8cdad1c73e8e	1686	/*
bfictorie	0:8cdad1c73e8e	1687	* Upcall the proper protocol input routine.
bfictorie	0:8cdad1c73e8e	1688	*/
bfictorie	0:8cdad1c73e8e	1689	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
bfictorie	0:8cdad1c73e8e	1690	if (protp->protocol == protocol && protp->enabled_flag) {
bfictorie	0:8cdad1c73e8e	1691	PPPDEBUG(LOG_INFO, ("pppInput[%d]: %s len=%d\n", pd, protp->name, nb->len));
bfictorie	0:8cdad1c73e8e	1692	nb = pppSingleBuf(nb);
bfictorie	0:8cdad1c73e8e	1693	(protp->input)(pd, (u_char )nb->payload, nb->len);
bfictorie	0:8cdad1c73e8e	1694	PPPDEBUG(LOG_DETAIL, ("pppInput[%d]: packet processed\n", pd));
bfictorie	0:8cdad1c73e8e	1695	goto out;
bfictorie	0:8cdad1c73e8e	1696	}
bfictorie	0:8cdad1c73e8e	1697	}
bfictorie	0:8cdad1c73e8e	1698
bfictorie	0:8cdad1c73e8e	1699	/* No handler for this protocol so reject the packet. */
bfictorie	0:8cdad1c73e8e	1700	PPPDEBUG(LOG_INFO, ("pppInput[%d]: rejecting unsupported proto 0x%"X16_F" len=%d\n", pd, protocol, nb->len));
bfictorie	0:8cdad1c73e8e	1701	if (pbuf_header(nb, sizeof(protocol))) {
bfictorie	0:8cdad1c73e8e	1702	LWIP_ASSERT("pbuf_header failed\n", 0);
bfictorie	0:8cdad1c73e8e	1703	goto drop;
bfictorie	0:8cdad1c73e8e	1704	}
bfictorie	0:8cdad1c73e8e	1705	#if BYTE_ORDER == LITTLE_ENDIAN
bfictorie	0:8cdad1c73e8e	1706	protocol = htons(protocol);
bfictorie	0:8cdad1c73e8e	1707	SMEMCPY(nb->payload, &protocol, sizeof(protocol));
bfictorie	0:8cdad1c73e8e	1708	#endif /* BYTE_ORDER == LITTLE_ENDIAN */
bfictorie	0:8cdad1c73e8e	1709	lcp_sprotrej(pd, (u_char *)nb->payload, nb->len);
bfictorie	0:8cdad1c73e8e	1710	}
bfictorie	0:8cdad1c73e8e	1711	break;
bfictorie	0:8cdad1c73e8e	1712	}
bfictorie	0:8cdad1c73e8e	1713
bfictorie	0:8cdad1c73e8e	1714	drop:
bfictorie	0:8cdad1c73e8e	1715	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	1716	snmp_inc_ifindiscards(&pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1717
bfictorie	0:8cdad1c73e8e	1718	out:
bfictorie	0:8cdad1c73e8e	1719	pbuf_free(nb);
bfictorie	0:8cdad1c73e8e	1720	return;
bfictorie	0:8cdad1c73e8e	1721	}
bfictorie	0:8cdad1c73e8e	1722
bfictorie	0:8cdad1c73e8e	1723	#if PPPOS_SUPPORT
bfictorie	0:8cdad1c73e8e	1724	/*
bfictorie	0:8cdad1c73e8e	1725	* Drop the input packet.
bfictorie	0:8cdad1c73e8e	1726	*/
bfictorie	0:8cdad1c73e8e	1727	static void
bfictorie	0:8cdad1c73e8e	1728	pppDrop(PPPControlRx *pcrx)
bfictorie	0:8cdad1c73e8e	1729	{
bfictorie	0:8cdad1c73e8e	1730	if (pcrx->inHead != NULL) {
bfictorie	0:8cdad1c73e8e	1731	#if 0
bfictorie	0:8cdad1c73e8e	1732	PPPDEBUG(LOG_INFO, ("pppDrop: %d:%.H\n", pcrx->inHead->len, min(60, pcrx->inHead->len 2), pcrx->inHead->payload));
bfictorie	0:8cdad1c73e8e	1733	#endif
bfictorie	0:8cdad1c73e8e	1734	PPPDEBUG(LOG_INFO, ("pppDrop: pbuf len=%d, addr %p\n", pcrx->inHead->len, (void*)pcrx->inHead));
bfictorie	0:8cdad1c73e8e	1735	if (pcrx->inTail && (pcrx->inTail != pcrx->inHead)) {
bfictorie	0:8cdad1c73e8e	1736	pbuf_free(pcrx->inTail);
bfictorie	0:8cdad1c73e8e	1737	}
bfictorie	0:8cdad1c73e8e	1738	pbuf_free(pcrx->inHead);
bfictorie	0:8cdad1c73e8e	1739	pcrx->inHead = NULL;
bfictorie	0:8cdad1c73e8e	1740	pcrx->inTail = NULL;
bfictorie	0:8cdad1c73e8e	1741	}
bfictorie	0:8cdad1c73e8e	1742	#if VJ_SUPPORT
bfictorie	0:8cdad1c73e8e	1743	vj_uncompress_err(&pppControl[pcrx->pd].vjComp);
bfictorie	0:8cdad1c73e8e	1744	#endif /* VJ_SUPPORT */
bfictorie	0:8cdad1c73e8e	1745
bfictorie	0:8cdad1c73e8e	1746	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	1747	snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
bfictorie	0:8cdad1c73e8e	1748	}
bfictorie	0:8cdad1c73e8e	1749
bfictorie	0:8cdad1c73e8e	1750	/** Pass received raw characters to PPPoS to be decoded. This function is
bfictorie	0:8cdad1c73e8e	1751	* thread-safe and can be called from a dedicated RX-thread or from a main-loop.
bfictorie	0:8cdad1c73e8e	1752	*
bfictorie	0:8cdad1c73e8e	1753	* @param pd PPP descriptor index, returned by pppOpen()
bfictorie	0:8cdad1c73e8e	1754	* @param data received data
bfictorie	0:8cdad1c73e8e	1755	* @param len length of received data
bfictorie	0:8cdad1c73e8e	1756	*/
bfictorie	0:8cdad1c73e8e	1757	void
bfictorie	0:8cdad1c73e8e	1758	pppos_input(int pd, u_char* data, int len)
bfictorie	0:8cdad1c73e8e	1759	{
bfictorie	0:8cdad1c73e8e	1760	pppInProc(&pppControl[pd].rx, data, len);
bfictorie	0:8cdad1c73e8e	1761	}
bfictorie	0:8cdad1c73e8e	1762
bfictorie	0:8cdad1c73e8e	1763	/**
bfictorie	0:8cdad1c73e8e	1764	* Process a received octet string.
bfictorie	0:8cdad1c73e8e	1765	*/
bfictorie	0:8cdad1c73e8e	1766	static void
bfictorie	0:8cdad1c73e8e	1767	pppInProc(PPPControlRx pcrx, u_char s, int l)
bfictorie	0:8cdad1c73e8e	1768	{
bfictorie	0:8cdad1c73e8e	1769	struct pbuf *nextNBuf;
bfictorie	0:8cdad1c73e8e	1770	u_char curChar;
bfictorie	0:8cdad1c73e8e	1771	u_char escaped;
bfictorie	0:8cdad1c73e8e	1772	SYS_ARCH_DECL_PROTECT(lev);
bfictorie	0:8cdad1c73e8e	1773
bfictorie	0:8cdad1c73e8e	1774	PPPDEBUG(LOG_DEBUG, ("pppInProc[%d]: got %d bytes\n", pcrx->pd, l));
bfictorie	0:8cdad1c73e8e	1775	while (l-- > 0) {
bfictorie	0:8cdad1c73e8e	1776	curChar = *s++;
bfictorie	0:8cdad1c73e8e	1777
bfictorie	0:8cdad1c73e8e	1778	SYS_ARCH_PROTECT(lev);
bfictorie	0:8cdad1c73e8e	1779	escaped = ESCAPE_P(pcrx->inACCM, curChar);
bfictorie	0:8cdad1c73e8e	1780	SYS_ARCH_UNPROTECT(lev);
bfictorie	0:8cdad1c73e8e	1781	/* Handle special characters. */
bfictorie	0:8cdad1c73e8e	1782	if (escaped) {
bfictorie	0:8cdad1c73e8e	1783	/* Check for escape sequences. */
bfictorie	0:8cdad1c73e8e	1784	/* XXX Note that this does not handle an escaped 0x5d character which
bfictorie	0:8cdad1c73e8e	1785	* would appear as an escape character. Since this is an ASCII ']'
bfictorie	0:8cdad1c73e8e	1786	* and there is no reason that I know of to escape it, I won't complicate
bfictorie	0:8cdad1c73e8e	1787	* the code to handle this case. GLL */
bfictorie	0:8cdad1c73e8e	1788	if (curChar == PPP_ESCAPE) {
bfictorie	0:8cdad1c73e8e	1789	pcrx->inEscaped = 1;
bfictorie	0:8cdad1c73e8e	1790	/* Check for the flag character. */
bfictorie	0:8cdad1c73e8e	1791	} else if (curChar == PPP_FLAG) {
bfictorie	0:8cdad1c73e8e	1792	/* If this is just an extra flag character, ignore it. */
bfictorie	0:8cdad1c73e8e	1793	if (pcrx->inState <= PDADDRESS) {
bfictorie	0:8cdad1c73e8e	1794	/* ignore it */;
bfictorie	0:8cdad1c73e8e	1795	/* If we haven't received the packet header, drop what has come in. */
bfictorie	0:8cdad1c73e8e	1796	} else if (pcrx->inState < PDDATA) {
bfictorie	0:8cdad1c73e8e	1797	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	1798	("pppInProc[%d]: Dropping incomplete packet %d\n",
bfictorie	0:8cdad1c73e8e	1799	pcrx->pd, pcrx->inState));
bfictorie	0:8cdad1c73e8e	1800	LINK_STATS_INC(link.lenerr);
bfictorie	0:8cdad1c73e8e	1801	pppDrop(pcrx);
bfictorie	0:8cdad1c73e8e	1802	/* If the fcs is invalid, drop the packet. */
bfictorie	0:8cdad1c73e8e	1803	} else if (pcrx->inFCS != PPP_GOODFCS) {
bfictorie	0:8cdad1c73e8e	1804	PPPDEBUG(LOG_INFO,
bfictorie	0:8cdad1c73e8e	1805	("pppInProc[%d]: Dropping bad fcs 0x%"X16_F" proto=0x%"X16_F"\n",
bfictorie	0:8cdad1c73e8e	1806	pcrx->pd, pcrx->inFCS, pcrx->inProtocol));
bfictorie	0:8cdad1c73e8e	1807	/* Note: If you get lots of these, check for UART frame errors or try different baud rate */
bfictorie	0:8cdad1c73e8e	1808	LINK_STATS_INC(link.chkerr);
bfictorie	0:8cdad1c73e8e	1809	pppDrop(pcrx);
bfictorie	0:8cdad1c73e8e	1810	/* Otherwise it's a good packet so pass it on. */
bfictorie	0:8cdad1c73e8e	1811	} else {
bfictorie	0:8cdad1c73e8e	1812	/* Trim off the checksum. */
bfictorie	0:8cdad1c73e8e	1813	if(pcrx->inTail->len >= 2) {
bfictorie	0:8cdad1c73e8e	1814	pcrx->inTail->len -= 2;
bfictorie	0:8cdad1c73e8e	1815
bfictorie	0:8cdad1c73e8e	1816	pcrx->inTail->tot_len = pcrx->inTail->len;
bfictorie	0:8cdad1c73e8e	1817	if (pcrx->inTail != pcrx->inHead) {
bfictorie	0:8cdad1c73e8e	1818	pbuf_cat(pcrx->inHead, pcrx->inTail);
bfictorie	0:8cdad1c73e8e	1819	}
bfictorie	0:8cdad1c73e8e	1820	} else {
bfictorie	0:8cdad1c73e8e	1821	pcrx->inTail->tot_len = pcrx->inTail->len;
bfictorie	0:8cdad1c73e8e	1822	if (pcrx->inTail != pcrx->inHead) {
bfictorie	0:8cdad1c73e8e	1823	pbuf_cat(pcrx->inHead, pcrx->inTail);
bfictorie	0:8cdad1c73e8e	1824	}
bfictorie	0:8cdad1c73e8e	1825
bfictorie	0:8cdad1c73e8e	1826	pbuf_realloc(pcrx->inHead, pcrx->inHead->tot_len - 2);
bfictorie	0:8cdad1c73e8e	1827	}
bfictorie	0:8cdad1c73e8e	1828
bfictorie	0:8cdad1c73e8e	1829	/* Dispatch the packet thereby consuming it. */
bfictorie	0:8cdad1c73e8e	1830	#if PPP_INPROC_MULTITHREADED
bfictorie	0:8cdad1c73e8e	1831	if(tcpip_callback_with_block(pppInput, pcrx->inHead, 0) != ERR_OK) {
bfictorie	0:8cdad1c73e8e	1832	PPPDEBUG(LOG_ERR, ("pppInProc[%d]: tcpip_callback() failed, dropping packet\n", pcrx->pd));
bfictorie	0:8cdad1c73e8e	1833	pbuf_free(pcrx->inHead);
bfictorie	0:8cdad1c73e8e	1834	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	1835	snmp_inc_ifindiscards(&pppControl[pcrx->pd].netif);
bfictorie	0:8cdad1c73e8e	1836	}
bfictorie	0:8cdad1c73e8e	1837	#else /* PPP_INPROC_MULTITHREADED */
bfictorie	0:8cdad1c73e8e	1838	pppInput(pcrx->inHead);
bfictorie	0:8cdad1c73e8e	1839	#endif /* PPP_INPROC_MULTITHREADED */
bfictorie	0:8cdad1c73e8e	1840	pcrx->inHead = NULL;
bfictorie	0:8cdad1c73e8e	1841	pcrx->inTail = NULL;
bfictorie	0:8cdad1c73e8e	1842	}
bfictorie	0:8cdad1c73e8e	1843
bfictorie	0:8cdad1c73e8e	1844	/* Prepare for a new packet. */
bfictorie	0:8cdad1c73e8e	1845	pcrx->inFCS = PPP_INITFCS;
bfictorie	0:8cdad1c73e8e	1846	pcrx->inState = PDADDRESS;
bfictorie	0:8cdad1c73e8e	1847	pcrx->inEscaped = 0;
bfictorie	0:8cdad1c73e8e	1848	/* Other characters are usually control characters that may have
bfictorie	0:8cdad1c73e8e	1849	* been inserted by the physical layer so here we just drop them. */
bfictorie	0:8cdad1c73e8e	1850	} else {
bfictorie	0:8cdad1c73e8e	1851	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	1852	("pppInProc[%d]: Dropping ACCM char <%d>\n", pcrx->pd, curChar));
bfictorie	0:8cdad1c73e8e	1853	}
bfictorie	0:8cdad1c73e8e	1854	/* Process other characters. */
bfictorie	0:8cdad1c73e8e	1855	} else {
bfictorie	0:8cdad1c73e8e	1856	/* Unencode escaped characters. */
bfictorie	0:8cdad1c73e8e	1857	if (pcrx->inEscaped) {
bfictorie	0:8cdad1c73e8e	1858	pcrx->inEscaped = 0;
bfictorie	0:8cdad1c73e8e	1859	curChar ^= PPP_TRANS;
bfictorie	0:8cdad1c73e8e	1860	}
bfictorie	0:8cdad1c73e8e	1861
bfictorie	0:8cdad1c73e8e	1862	/* Process character relative to current state. */
bfictorie	0:8cdad1c73e8e	1863	switch(pcrx->inState) {
bfictorie	0:8cdad1c73e8e	1864	case PDIDLE: /* Idle state - waiting. */
bfictorie	0:8cdad1c73e8e	1865	/* Drop the character if it's not 0xff
bfictorie	0:8cdad1c73e8e	1866	* we would have processed a flag character above. */
bfictorie	0:8cdad1c73e8e	1867	if (curChar != PPP_ALLSTATIONS) {
bfictorie	0:8cdad1c73e8e	1868	break;
bfictorie	0:8cdad1c73e8e	1869	}
bfictorie	0:8cdad1c73e8e	1870
bfictorie	0:8cdad1c73e8e	1871	/* Fall through */
bfictorie	0:8cdad1c73e8e	1872	case PDSTART: /* Process start flag. */
bfictorie	0:8cdad1c73e8e	1873	/* Prepare for a new packet. */
bfictorie	0:8cdad1c73e8e	1874	pcrx->inFCS = PPP_INITFCS;
bfictorie	0:8cdad1c73e8e	1875
bfictorie	0:8cdad1c73e8e	1876	/* Fall through */
bfictorie	0:8cdad1c73e8e	1877	case PDADDRESS: /* Process address field. */
bfictorie	0:8cdad1c73e8e	1878	if (curChar == PPP_ALLSTATIONS) {
bfictorie	0:8cdad1c73e8e	1879	pcrx->inState = PDCONTROL;
bfictorie	0:8cdad1c73e8e	1880	break;
bfictorie	0:8cdad1c73e8e	1881	}
bfictorie	0:8cdad1c73e8e	1882	/* Else assume compressed address and control fields so
bfictorie	0:8cdad1c73e8e	1883	* fall through to get the protocol... */
bfictorie	0:8cdad1c73e8e	1884	case PDCONTROL: /* Process control field. */
bfictorie	0:8cdad1c73e8e	1885	/* If we don't get a valid control code, restart. */
bfictorie	0:8cdad1c73e8e	1886	if (curChar == PPP_UI) {
bfictorie	0:8cdad1c73e8e	1887	pcrx->inState = PDPROTOCOL1;
bfictorie	0:8cdad1c73e8e	1888	break;
bfictorie	0:8cdad1c73e8e	1889	}
bfictorie	0:8cdad1c73e8e	1890	#if 0
bfictorie	0:8cdad1c73e8e	1891	else {
bfictorie	0:8cdad1c73e8e	1892	PPPDEBUG(LOG_WARNING,
bfictorie	0:8cdad1c73e8e	1893	("pppInProc[%d]: Invalid control <%d>\n", pcrx->pd, curChar));
bfictorie	0:8cdad1c73e8e	1894	pcrx->inState = PDSTART;
bfictorie	0:8cdad1c73e8e	1895	}
bfictorie	0:8cdad1c73e8e	1896	#endif
bfictorie	0:8cdad1c73e8e	1897	case PDPROTOCOL1: /* Process protocol field 1. */
bfictorie	0:8cdad1c73e8e	1898	/* If the lower bit is set, this is the end of the protocol
bfictorie	0:8cdad1c73e8e	1899	* field. */
bfictorie	0:8cdad1c73e8e	1900	if (curChar & 1) {
bfictorie	0:8cdad1c73e8e	1901	pcrx->inProtocol = curChar;
bfictorie	0:8cdad1c73e8e	1902	pcrx->inState = PDDATA;
bfictorie	0:8cdad1c73e8e	1903	} else {
bfictorie	0:8cdad1c73e8e	1904	pcrx->inProtocol = (u_int)curChar << 8;
bfictorie	0:8cdad1c73e8e	1905	pcrx->inState = PDPROTOCOL2;
bfictorie	0:8cdad1c73e8e	1906	}
bfictorie	0:8cdad1c73e8e	1907	break;
bfictorie	0:8cdad1c73e8e	1908	case PDPROTOCOL2: /* Process protocol field 2. */
bfictorie	0:8cdad1c73e8e	1909	pcrx->inProtocol \|= curChar;
bfictorie	0:8cdad1c73e8e	1910	pcrx->inState = PDDATA;
bfictorie	0:8cdad1c73e8e	1911	break;
bfictorie	0:8cdad1c73e8e	1912	case PDDATA: /* Process data byte. */
bfictorie	0:8cdad1c73e8e	1913	/* Make space to receive processed data. */
bfictorie	0:8cdad1c73e8e	1914	if (pcrx->inTail == NULL \|\| pcrx->inTail->len == PBUF_POOL_BUFSIZE) {
bfictorie	0:8cdad1c73e8e	1915	if(pcrx->inTail) {
bfictorie	0:8cdad1c73e8e	1916	pcrx->inTail->tot_len = pcrx->inTail->len;
bfictorie	0:8cdad1c73e8e	1917	if (pcrx->inTail != pcrx->inHead) {
bfictorie	0:8cdad1c73e8e	1918	pbuf_cat(pcrx->inHead, pcrx->inTail);
bfictorie	0:8cdad1c73e8e	1919	}
bfictorie	0:8cdad1c73e8e	1920	}
bfictorie	0:8cdad1c73e8e	1921	/* If we haven't started a packet, we need a packet header. */
bfictorie	0:8cdad1c73e8e	1922	nextNBuf = pbuf_alloc(PBUF_RAW, 0, PBUF_POOL);
bfictorie	0:8cdad1c73e8e	1923	if (nextNBuf == NULL) {
bfictorie	0:8cdad1c73e8e	1924	/* No free buffers. Drop the input packet and let the
bfictorie	0:8cdad1c73e8e	1925	* higher layers deal with it. Continue processing
bfictorie	0:8cdad1c73e8e	1926	* the received pbuf chain in case a new packet starts. */
bfictorie	0:8cdad1c73e8e	1927	PPPDEBUG(LOG_ERR, ("pppInProc[%d]: NO FREE MBUFS!\n", pcrx->pd));
bfictorie	0:8cdad1c73e8e	1928	LINK_STATS_INC(link.memerr);
bfictorie	0:8cdad1c73e8e	1929	pppDrop(pcrx);
bfictorie	0:8cdad1c73e8e	1930	pcrx->inState = PDSTART; /* Wait for flag sequence. */
bfictorie	0:8cdad1c73e8e	1931	break;
bfictorie	0:8cdad1c73e8e	1932	}
bfictorie	0:8cdad1c73e8e	1933	if (pcrx->inHead == NULL) {
bfictorie	0:8cdad1c73e8e	1934	struct pppInputHeader pih = (struct pppInputHeader )nextNBuf->payload;
bfictorie	0:8cdad1c73e8e	1935
bfictorie	0:8cdad1c73e8e	1936	pih->unit = pcrx->pd;
bfictorie	0:8cdad1c73e8e	1937	pih->proto = pcrx->inProtocol;
bfictorie	0:8cdad1c73e8e	1938
bfictorie	0:8cdad1c73e8e	1939	nextNBuf->len += sizeof(*pih);
bfictorie	0:8cdad1c73e8e	1940
bfictorie	0:8cdad1c73e8e	1941	pcrx->inHead = nextNBuf;
bfictorie	0:8cdad1c73e8e	1942	}
bfictorie	0:8cdad1c73e8e	1943	pcrx->inTail = nextNBuf;
bfictorie	0:8cdad1c73e8e	1944	}
bfictorie	0:8cdad1c73e8e	1945	/* Load character into buffer. */
bfictorie	0:8cdad1c73e8e	1946	((u_char*)pcrx->inTail->payload)[pcrx->inTail->len++] = curChar;
bfictorie	0:8cdad1c73e8e	1947	break;
bfictorie	0:8cdad1c73e8e	1948	}
bfictorie	0:8cdad1c73e8e	1949
bfictorie	0:8cdad1c73e8e	1950	/* update the frame check sequence number. */
bfictorie	0:8cdad1c73e8e	1951	pcrx->inFCS = PPP_FCS(pcrx->inFCS, curChar);
bfictorie	0:8cdad1c73e8e	1952	}
bfictorie	0:8cdad1c73e8e	1953	} /* while (l-- > 0), all bytes processed */
bfictorie	0:8cdad1c73e8e	1954
bfictorie	0:8cdad1c73e8e	1955	avRandomize();
bfictorie	0:8cdad1c73e8e	1956	}
bfictorie	0:8cdad1c73e8e	1957	#endif /* PPPOS_SUPPORT */
bfictorie	0:8cdad1c73e8e	1958
bfictorie	0:8cdad1c73e8e	1959	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	1960	void
bfictorie	0:8cdad1c73e8e	1961	pppInProcOverEthernet(int pd, struct pbuf *pb)
bfictorie	0:8cdad1c73e8e	1962	{
bfictorie	0:8cdad1c73e8e	1963	struct pppInputHeader *pih;
bfictorie	0:8cdad1c73e8e	1964	u16_t inProtocol;
bfictorie	0:8cdad1c73e8e	1965
bfictorie	0:8cdad1c73e8e	1966	if(pb->len < sizeof(inProtocol)) {
bfictorie	0:8cdad1c73e8e	1967	PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: too small for protocol field\n"));
bfictorie	0:8cdad1c73e8e	1968	goto drop;
bfictorie	0:8cdad1c73e8e	1969	}
bfictorie	0:8cdad1c73e8e	1970
bfictorie	0:8cdad1c73e8e	1971	inProtocol = (((u8_t )pb->payload)[0] << 8) \| ((u8_t)pb->payload)[1];
bfictorie	0:8cdad1c73e8e	1972
bfictorie	0:8cdad1c73e8e	1973	/* make room for pppInputHeader - should not fail */
bfictorie	0:8cdad1c73e8e	1974	if (pbuf_header(pb, sizeof(*pih) - sizeof(inProtocol)) != 0) {
bfictorie	0:8cdad1c73e8e	1975	PPPDEBUG(LOG_ERR, ("pppInProcOverEthernet: could not allocate room for header\n"));
bfictorie	0:8cdad1c73e8e	1976	goto drop;
bfictorie	0:8cdad1c73e8e	1977	}
bfictorie	0:8cdad1c73e8e	1978
bfictorie	0:8cdad1c73e8e	1979	pih = pb->payload;
bfictorie	0:8cdad1c73e8e	1980
bfictorie	0:8cdad1c73e8e	1981	pih->unit = pd;
bfictorie	0:8cdad1c73e8e	1982	pih->proto = inProtocol;
bfictorie	0:8cdad1c73e8e	1983
bfictorie	0:8cdad1c73e8e	1984	/* Dispatch the packet thereby consuming it. */
bfictorie	0:8cdad1c73e8e	1985	pppInput(pb);
bfictorie	0:8cdad1c73e8e	1986	return;
bfictorie	0:8cdad1c73e8e	1987
bfictorie	0:8cdad1c73e8e	1988	drop:
bfictorie	0:8cdad1c73e8e	1989	LINK_STATS_INC(link.drop);
bfictorie	0:8cdad1c73e8e	1990	snmp_inc_ifindiscards(&pppControl[pd].netif);
bfictorie	0:8cdad1c73e8e	1991	pbuf_free(pb);
bfictorie	0:8cdad1c73e8e	1992	return;
bfictorie	0:8cdad1c73e8e	1993	}
bfictorie	0:8cdad1c73e8e	1994	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	1995
bfictorie	0:8cdad1c73e8e	1996	#if LWIP_NETIF_STATUS_CALLBACK
bfictorie	0:8cdad1c73e8e	1997	/** Set the status callback of a PPP's netif
bfictorie	0:8cdad1c73e8e	1998	*
bfictorie	0:8cdad1c73e8e	1999	* @param pd The PPP descriptor returned by pppOpen()
bfictorie	0:8cdad1c73e8e	2000	* @param status_callback pointer to the status callback function
bfictorie	0:8cdad1c73e8e	2001	*
bfictorie	0:8cdad1c73e8e	2002	* @see netif_set_status_callback
bfictorie	0:8cdad1c73e8e	2003	*/
bfictorie	0:8cdad1c73e8e	2004	void
bfictorie	0:8cdad1c73e8e	2005	ppp_set_netif_statuscallback(int pd, netif_status_callback_fn status_callback)
bfictorie	0:8cdad1c73e8e	2006	{
bfictorie	0:8cdad1c73e8e	2007	netif_set_status_callback(&pppControl[pd].netif, status_callback);
bfictorie	0:8cdad1c73e8e	2008	}
bfictorie	0:8cdad1c73e8e	2009	#endif /* LWIP_NETIF_STATUS_CALLBACK */
bfictorie	0:8cdad1c73e8e	2010
bfictorie	0:8cdad1c73e8e	2011	#if LWIP_NETIF_LINK_CALLBACK
bfictorie	0:8cdad1c73e8e	2012	/** Set the link callback of a PPP's netif
bfictorie	0:8cdad1c73e8e	2013	*
bfictorie	0:8cdad1c73e8e	2014	* @param pd The PPP descriptor returned by pppOpen()
bfictorie	0:8cdad1c73e8e	2015	* @param link_callback pointer to the link callback function
bfictorie	0:8cdad1c73e8e	2016	*
bfictorie	0:8cdad1c73e8e	2017	* @see netif_set_link_callback
bfictorie	0:8cdad1c73e8e	2018	*/
bfictorie	0:8cdad1c73e8e	2019	void
bfictorie	0:8cdad1c73e8e	2020	ppp_set_netif_linkcallback(int pd, netif_status_callback_fn link_callback)
bfictorie	0:8cdad1c73e8e	2021	{
bfictorie	0:8cdad1c73e8e	2022	netif_set_link_callback(&pppControl[pd].netif, link_callback);
bfictorie	0:8cdad1c73e8e	2023	}
bfictorie	0:8cdad1c73e8e	2024	#endif /* LWIP_NETIF_LINK_CALLBACK */
bfictorie	0:8cdad1c73e8e	2025
bfictorie	0:8cdad1c73e8e	2026	#endif /* PPP_SUPPORT */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	25 Mar 2012
Imports:	10
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

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NetServices/lwip/netif/ppp/ppp.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

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