TCPSpeedTest - I have a problem getting this to work. Server onl…

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Jesper Taxbøl / Mbed 2 deprecated TCPSpeedTest

I have a problem getting this to work. Server only recieves half of the data being sent. Whats wrong

lwip/netif/ppp/auth.c@0:66300c77c6e9, 2011-03-29 (annotated)

Committer:: tax
Date:: Tue Mar 29 13:20:15 2011 +0000
Revision:: 0:66300c77c6e9

Who changed what in which revision?

User	Revision	Line number	New contents of line
tax	0:66300c77c6e9	1	/*****************************************************************************
tax	0:66300c77c6e9	2	* auth.c - Network Authentication and Phase Control program file.
tax	0:66300c77c6e9	3	*
tax	0:66300c77c6e9	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
tax	0:66300c77c6e9	5	* Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
tax	0:66300c77c6e9	6	*
tax	0:66300c77c6e9	7	* The authors hereby grant permission to use, copy, modify, distribute,
tax	0:66300c77c6e9	8	* and license this software and its documentation for any purpose, provided
tax	0:66300c77c6e9	9	* that existing copyright notices are retained in all copies and that this
tax	0:66300c77c6e9	10	* notice and the following disclaimer are included verbatim in any
tax	0:66300c77c6e9	11	* distributions. No written agreement, license, or royalty fee is required
tax	0:66300c77c6e9	12	* for any of the authorized uses.
tax	0:66300c77c6e9	13	*
tax	0:66300c77c6e9	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
tax	0:66300c77c6e9	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
tax	0:66300c77c6e9	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
tax	0:66300c77c6e9	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
tax	0:66300c77c6e9	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
tax	0:66300c77c6e9	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
tax	0:66300c77c6e9	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
tax	0:66300c77c6e9	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
tax	0:66300c77c6e9	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
tax	0:66300c77c6e9	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
tax	0:66300c77c6e9	24	*
tax	0:66300c77c6e9	25	******************************************************************************
tax	0:66300c77c6e9	26	* REVISION HISTORY
tax	0:66300c77c6e9	27	*
tax	0:66300c77c6e9	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
tax	0:66300c77c6e9	29	* Ported to lwIP.
tax	0:66300c77c6e9	30	* 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
tax	0:66300c77c6e9	31	* Ported from public pppd code.
tax	0:66300c77c6e9	32	*****************************************************************************/
tax	0:66300c77c6e9	33	/*
tax	0:66300c77c6e9	34	* auth.c - PPP authentication and phase control.
tax	0:66300c77c6e9	35	*
tax	0:66300c77c6e9	36	* Copyright (c) 1993 The Australian National University.
tax	0:66300c77c6e9	37	* All rights reserved.
tax	0:66300c77c6e9	38	*
tax	0:66300c77c6e9	39	* Redistribution and use in source and binary forms are permitted
tax	0:66300c77c6e9	40	* provided that the above copyright notice and this paragraph are
tax	0:66300c77c6e9	41	* duplicated in all such forms and that any documentation,
tax	0:66300c77c6e9	42	* advertising materials, and other materials related to such
tax	0:66300c77c6e9	43	* distribution and use acknowledge that the software was developed
tax	0:66300c77c6e9	44	* by the Australian National University. The name of the University
tax	0:66300c77c6e9	45	* may not be used to endorse or promote products derived from this
tax	0:66300c77c6e9	46	* software without specific prior written permission.
tax	0:66300c77c6e9	47	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
tax	0:66300c77c6e9	48	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
tax	0:66300c77c6e9	49	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
tax	0:66300c77c6e9	50	*
tax	0:66300c77c6e9	51	* Copyright (c) 1989 Carnegie Mellon University.
tax	0:66300c77c6e9	52	* All rights reserved.
tax	0:66300c77c6e9	53	*
tax	0:66300c77c6e9	54	* Redistribution and use in source and binary forms are permitted
tax	0:66300c77c6e9	55	* provided that the above copyright notice and this paragraph are
tax	0:66300c77c6e9	56	* duplicated in all such forms and that any documentation,
tax	0:66300c77c6e9	57	* advertising materials, and other materials related to such
tax	0:66300c77c6e9	58	* distribution and use acknowledge that the software was developed
tax	0:66300c77c6e9	59	* by Carnegie Mellon University. The name of the
tax	0:66300c77c6e9	60	* University may not be used to endorse or promote products derived
tax	0:66300c77c6e9	61	* from this software without specific prior written permission.
tax	0:66300c77c6e9	62	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
tax	0:66300c77c6e9	63	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
tax	0:66300c77c6e9	64	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
tax	0:66300c77c6e9	65	*/
tax	0:66300c77c6e9	66
tax	0:66300c77c6e9	67	#include "lwip/opt.h"
tax	0:66300c77c6e9	68
tax	0:66300c77c6e9	69	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
tax	0:66300c77c6e9	70
tax	0:66300c77c6e9	71	#include "ppp.h"
tax	0:66300c77c6e9	72	#include "pppdebug.h"
tax	0:66300c77c6e9	73
tax	0:66300c77c6e9	74	#include "fsm.h"
tax	0:66300c77c6e9	75	#include "lcp.h"
tax	0:66300c77c6e9	76	#include "pap.h"
tax	0:66300c77c6e9	77	#include "chap.h"
tax	0:66300c77c6e9	78	#include "auth.h"
tax	0:66300c77c6e9	79	#include "ipcp.h"
tax	0:66300c77c6e9	80
tax	0:66300c77c6e9	81	#if CBCP_SUPPORT
tax	0:66300c77c6e9	82	#include "cbcp.h"
tax	0:66300c77c6e9	83	#endif /* CBCP_SUPPORT */
tax	0:66300c77c6e9	84
tax	0:66300c77c6e9	85	#include "lwip/inet.h"
tax	0:66300c77c6e9	86
tax	0:66300c77c6e9	87	#include <string.h>
tax	0:66300c77c6e9	88
tax	0:66300c77c6e9	89	#if 0 /* UNUSED */
tax	0:66300c77c6e9	90	/* Bits in scan_authfile return value */
tax	0:66300c77c6e9	91	#define NONWILD_SERVER 1
tax	0:66300c77c6e9	92	#define NONWILD_CLIENT 2
tax	0:66300c77c6e9	93
tax	0:66300c77c6e9	94	#define ISWILD(word) (word[0] == '*' && word[1] == 0)
tax	0:66300c77c6e9	95	#endif /* UNUSED */
tax	0:66300c77c6e9	96
tax	0:66300c77c6e9	97	#if PAP_SUPPORT \|\| CHAP_SUPPORT
tax	0:66300c77c6e9	98	/* The name by which the peer authenticated itself to us. */
tax	0:66300c77c6e9	99	static char peer_authname[MAXNAMELEN];
tax	0:66300c77c6e9	100	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	101
tax	0:66300c77c6e9	102	/* Records which authentication operations haven't completed yet. */
tax	0:66300c77c6e9	103	static int auth_pending[NUM_PPP];
tax	0:66300c77c6e9	104
tax	0:66300c77c6e9	105	/* Set if we have successfully called plogin() */
tax	0:66300c77c6e9	106	static int logged_in;
tax	0:66300c77c6e9	107
tax	0:66300c77c6e9	108	/* Set if we have run the /etc/ppp/auth-up script. */
tax	0:66300c77c6e9	109	static int did_authup; /* @todo, we don't need this in lwip*/
tax	0:66300c77c6e9	110
tax	0:66300c77c6e9	111	/* List of addresses which the peer may use. */
tax	0:66300c77c6e9	112	static struct wordlist *addresses[NUM_PPP];
tax	0:66300c77c6e9	113
tax	0:66300c77c6e9	114	#if 0 /* UNUSED */
tax	0:66300c77c6e9	115	/* Wordlist giving addresses which the peer may use
tax	0:66300c77c6e9	116	without authenticating itself. */
tax	0:66300c77c6e9	117	static struct wordlist *noauth_addrs;
tax	0:66300c77c6e9	118
tax	0:66300c77c6e9	119	/* Extra options to apply, from the secrets file entry for the peer. */
tax	0:66300c77c6e9	120	static struct wordlist *extra_options;
tax	0:66300c77c6e9	121	#endif /* UNUSED */
tax	0:66300c77c6e9	122
tax	0:66300c77c6e9	123	/* Number of network protocols which we have opened. */
tax	0:66300c77c6e9	124	static int num_np_open;
tax	0:66300c77c6e9	125
tax	0:66300c77c6e9	126	/* Number of network protocols which have come up. */
tax	0:66300c77c6e9	127	static int num_np_up;
tax	0:66300c77c6e9	128
tax	0:66300c77c6e9	129	#if PAP_SUPPORT \|\| CHAP_SUPPORT
tax	0:66300c77c6e9	130	/* Set if we got the contents of passwd[] from the pap-secrets file. */
tax	0:66300c77c6e9	131	static int passwd_from_file;
tax	0:66300c77c6e9	132	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	133
tax	0:66300c77c6e9	134	#if 0 /* UNUSED */
tax	0:66300c77c6e9	135	/* Set if we require authentication only because we have a default route. */
tax	0:66300c77c6e9	136	static bool default_auth;
tax	0:66300c77c6e9	137
tax	0:66300c77c6e9	138	/* Hook to enable a plugin to control the idle time limit */
tax	0:66300c77c6e9	139	int (idle_time_hook) __P((struct ppp_idle )) = NULL;
tax	0:66300c77c6e9	140
tax	0:66300c77c6e9	141	/* Hook for a plugin to say whether we can possibly authenticate any peer */
tax	0:66300c77c6e9	142	int (*pap_check_hook) __P((void)) = NULL;
tax	0:66300c77c6e9	143
tax	0:66300c77c6e9	144	/* Hook for a plugin to check the PAP user and password */
tax	0:66300c77c6e9	145	int (pap_auth_hook) __P((char user, char passwd, char *msgp,
tax	0:66300c77c6e9	146	struct wordlist **paddrs,
tax	0:66300c77c6e9	147	struct wordlist **popts)) = NULL;
tax	0:66300c77c6e9	148
tax	0:66300c77c6e9	149	/* Hook for a plugin to know about the PAP user logout */
tax	0:66300c77c6e9	150	void (*pap_logout_hook) __P((void)) = NULL;
tax	0:66300c77c6e9	151
tax	0:66300c77c6e9	152	/* Hook for a plugin to get the PAP password for authenticating us */
tax	0:66300c77c6e9	153	int (pap_passwd_hook) __P((char user, char *passwd)) = NULL;
tax	0:66300c77c6e9	154
tax	0:66300c77c6e9	155	/*
tax	0:66300c77c6e9	156	* This is used to ensure that we don't start an auth-up/down
tax	0:66300c77c6e9	157	* script while one is already running.
tax	0:66300c77c6e9	158	*/
tax	0:66300c77c6e9	159	enum script_state {
tax	0:66300c77c6e9	160	s_down,
tax	0:66300c77c6e9	161	s_up
tax	0:66300c77c6e9	162	};
tax	0:66300c77c6e9	163
tax	0:66300c77c6e9	164	static enum script_state auth_state = s_down;
tax	0:66300c77c6e9	165	static enum script_state auth_script_state = s_down;
tax	0:66300c77c6e9	166	static pid_t auth_script_pid = 0;
tax	0:66300c77c6e9	167
tax	0:66300c77c6e9	168	/*
tax	0:66300c77c6e9	169	* Option variables.
tax	0:66300c77c6e9	170	* lwip: some of these are present in the ppp_settings structure
tax	0:66300c77c6e9	171	*/
tax	0:66300c77c6e9	172	bool uselogin = 0; /* Use /etc/passwd for checking PAP */
tax	0:66300c77c6e9	173	bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
tax	0:66300c77c6e9	174	bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
tax	0:66300c77c6e9	175	bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
tax	0:66300c77c6e9	176	bool usehostname = 0; /* Use hostname for our_name */
tax	0:66300c77c6e9	177	bool auth_required = 0; /* Always require authentication from peer */
tax	0:66300c77c6e9	178	bool allow_any_ip = 0; /* Allow peer to use any IP address */
tax	0:66300c77c6e9	179	bool explicit_remote = 0; /* User specified explicit remote name */
tax	0:66300c77c6e9	180	char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
tax	0:66300c77c6e9	181
tax	0:66300c77c6e9	182	#endif /* UNUSED */
tax	0:66300c77c6e9	183
tax	0:66300c77c6e9	184	/* Bits in auth_pending[] */
tax	0:66300c77c6e9	185	#define PAP_WITHPEER 1
tax	0:66300c77c6e9	186	#define PAP_PEER 2
tax	0:66300c77c6e9	187	#define CHAP_WITHPEER 4
tax	0:66300c77c6e9	188	#define CHAP_PEER 8
tax	0:66300c77c6e9	189
tax	0:66300c77c6e9	190	/* @todo, move this somewhere */
tax	0:66300c77c6e9	191	/* Used for storing a sequence of words. Usually malloced. */
tax	0:66300c77c6e9	192	struct wordlist {
tax	0:66300c77c6e9	193	struct wordlist *next;
tax	0:66300c77c6e9	194	char word[1];
tax	0:66300c77c6e9	195	};
tax	0:66300c77c6e9	196
tax	0:66300c77c6e9	197
tax	0:66300c77c6e9	198	extern char crypt (const char , const char *);
tax	0:66300c77c6e9	199
tax	0:66300c77c6e9	200	/* Prototypes for procedures local to this file. */
tax	0:66300c77c6e9	201
tax	0:66300c77c6e9	202	static void network_phase (int);
tax	0:66300c77c6e9	203	static void check_idle (void *);
tax	0:66300c77c6e9	204	static void connect_time_expired (void *);
tax	0:66300c77c6e9	205	#if 0
tax	0:66300c77c6e9	206	static int plogin (char , char , char *, int );
tax	0:66300c77c6e9	207	#endif
tax	0:66300c77c6e9	208	static void plogout (void);
tax	0:66300c77c6e9	209	static int null_login (int);
tax	0:66300c77c6e9	210	static int get_pap_passwd (int, char , char );
tax	0:66300c77c6e9	211	static int have_pap_secret (void);
tax	0:66300c77c6e9	212	static int have_chap_secret (char , char , u32_t);
tax	0:66300c77c6e9	213	static int ip_addr_check (u32_t, struct wordlist *);
tax	0:66300c77c6e9	214
tax	0:66300c77c6e9	215	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	216	static int scan_authfile (FILE , char , char , char ,
tax	0:66300c77c6e9	217	struct wordlist , struct wordlist ,
tax	0:66300c77c6e9	218	char *);
tax	0:66300c77c6e9	219	static void free_wordlist (struct wordlist *);
tax	0:66300c77c6e9	220	static void auth_script (char *);
tax	0:66300c77c6e9	221	static void auth_script_done (void *);
tax	0:66300c77c6e9	222	static void set_allowed_addrs (int unit, struct wordlist *addrs);
tax	0:66300c77c6e9	223	static int some_ip_ok (struct wordlist *);
tax	0:66300c77c6e9	224	static int setupapfile (char **);
tax	0:66300c77c6e9	225	static int privgroup (char **);
tax	0:66300c77c6e9	226	static int set_noauth_addr (char **);
tax	0:66300c77c6e9	227	static void check_access (FILE , char );
tax	0:66300c77c6e9	228	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	229
tax	0:66300c77c6e9	230	#if 0 /* UNUSED */
tax	0:66300c77c6e9	231	/*
tax	0:66300c77c6e9	232	* Authentication-related options.
tax	0:66300c77c6e9	233	*/
tax	0:66300c77c6e9	234	option_t auth_options[] = {
tax	0:66300c77c6e9	235	{ "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
tax	0:66300c77c6e9	236	"Require PAP authentication from peer", 1, &auth_required },
tax	0:66300c77c6e9	237	{ "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
tax	0:66300c77c6e9	238	"Require PAP authentication from peer", 1, &auth_required },
tax	0:66300c77c6e9	239	{ "refuse-pap", o_bool, &refuse_pap,
tax	0:66300c77c6e9	240	"Don't agree to auth to peer with PAP", 1 },
tax	0:66300c77c6e9	241	{ "-pap", o_bool, &refuse_pap,
tax	0:66300c77c6e9	242	"Don't allow PAP authentication with peer", 1 },
tax	0:66300c77c6e9	243	{ "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
tax	0:66300c77c6e9	244	"Require CHAP authentication from peer", 1, &auth_required },
tax	0:66300c77c6e9	245	{ "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
tax	0:66300c77c6e9	246	"Require CHAP authentication from peer", 1, &auth_required },
tax	0:66300c77c6e9	247	{ "refuse-chap", o_bool, &refuse_chap,
tax	0:66300c77c6e9	248	"Don't agree to auth to peer with CHAP", 1 },
tax	0:66300c77c6e9	249	{ "-chap", o_bool, &refuse_chap,
tax	0:66300c77c6e9	250	"Don't allow CHAP authentication with peer", 1 },
tax	0:66300c77c6e9	251	{ "name", o_string, our_name,
tax	0:66300c77c6e9	252	"Set local name for authentication",
tax	0:66300c77c6e9	253	OPT_PRIV\|OPT_STATIC, NULL, MAXNAMELEN },
tax	0:66300c77c6e9	254	{ "user", o_string, user,
tax	0:66300c77c6e9	255	"Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
tax	0:66300c77c6e9	256	{ "usehostname", o_bool, &usehostname,
tax	0:66300c77c6e9	257	"Must use hostname for authentication", 1 },
tax	0:66300c77c6e9	258	{ "remotename", o_string, remote_name,
tax	0:66300c77c6e9	259	"Set remote name for authentication", OPT_STATIC,
tax	0:66300c77c6e9	260	&explicit_remote, MAXNAMELEN },
tax	0:66300c77c6e9	261	{ "auth", o_bool, &auth_required,
tax	0:66300c77c6e9	262	"Require authentication from peer", 1 },
tax	0:66300c77c6e9	263	{ "noauth", o_bool, &auth_required,
tax	0:66300c77c6e9	264	"Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
tax	0:66300c77c6e9	265	{ "login", o_bool, &uselogin,
tax	0:66300c77c6e9	266	"Use system password database for PAP", 1 },
tax	0:66300c77c6e9	267	{ "papcrypt", o_bool, &cryptpap,
tax	0:66300c77c6e9	268	"PAP passwords are encrypted", 1 },
tax	0:66300c77c6e9	269	{ "+ua", o_special, (void *)setupapfile,
tax	0:66300c77c6e9	270	"Get PAP user and password from file" },
tax	0:66300c77c6e9	271	{ "password", o_string, passwd,
tax	0:66300c77c6e9	272	"Password for authenticating us to the peer", OPT_STATIC,
tax	0:66300c77c6e9	273	NULL, MAXSECRETLEN },
tax	0:66300c77c6e9	274	{ "privgroup", o_special, (void *)privgroup,
tax	0:66300c77c6e9	275	"Allow group members to use privileged options", OPT_PRIV },
tax	0:66300c77c6e9	276	{ "allow-ip", o_special, (void *)set_noauth_addr,
tax	0:66300c77c6e9	277	"Set IP address(es) which can be used without authentication",
tax	0:66300c77c6e9	278	OPT_PRIV },
tax	0:66300c77c6e9	279	{ NULL }
tax	0:66300c77c6e9	280	};
tax	0:66300c77c6e9	281	#endif /* UNUSED */
tax	0:66300c77c6e9	282	#if 0 /* UNUSED */
tax	0:66300c77c6e9	283	/*
tax	0:66300c77c6e9	284	* setupapfile - specifies UPAP info for authenticating with peer.
tax	0:66300c77c6e9	285	*/
tax	0:66300c77c6e9	286	static int
tax	0:66300c77c6e9	287	setupapfile(char **argv)
tax	0:66300c77c6e9	288	{
tax	0:66300c77c6e9	289	FILE * ufile;
tax	0:66300c77c6e9	290	int l;
tax	0:66300c77c6e9	291
tax	0:66300c77c6e9	292	lcp_allowoptions[0].neg_upap = 1;
tax	0:66300c77c6e9	293
tax	0:66300c77c6e9	294	/* open user info file */
tax	0:66300c77c6e9	295	seteuid(getuid());
tax	0:66300c77c6e9	296	ufile = fopen(*argv, "r");
tax	0:66300c77c6e9	297	seteuid(0);
tax	0:66300c77c6e9	298	if (ufile == NULL) {
tax	0:66300c77c6e9	299	option_error("unable to open user login data file %s", *argv);
tax	0:66300c77c6e9	300	return 0;
tax	0:66300c77c6e9	301	}
tax	0:66300c77c6e9	302	check_access(ufile, *argv);
tax	0:66300c77c6e9	303
tax	0:66300c77c6e9	304	/* get username */
tax	0:66300c77c6e9	305	if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
tax	0:66300c77c6e9	306	\|\| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
tax	0:66300c77c6e9	307	option_error("unable to read user login data file %s", *argv);
tax	0:66300c77c6e9	308	return 0;
tax	0:66300c77c6e9	309	}
tax	0:66300c77c6e9	310	fclose(ufile);
tax	0:66300c77c6e9	311
tax	0:66300c77c6e9	312	/* get rid of newlines */
tax	0:66300c77c6e9	313	l = strlen(user);
tax	0:66300c77c6e9	314	if (l > 0 && user[l-1] == '\n')
tax	0:66300c77c6e9	315	user[l-1] = 0;
tax	0:66300c77c6e9	316	l = strlen(passwd);
tax	0:66300c77c6e9	317	if (l > 0 && passwd[l-1] == '\n')
tax	0:66300c77c6e9	318	passwd[l-1] = 0;
tax	0:66300c77c6e9	319
tax	0:66300c77c6e9	320	return (1);
tax	0:66300c77c6e9	321	}
tax	0:66300c77c6e9	322	#endif /* UNUSED */
tax	0:66300c77c6e9	323
tax	0:66300c77c6e9	324	#if 0 /* UNUSED */
tax	0:66300c77c6e9	325	/*
tax	0:66300c77c6e9	326	* privgroup - allow members of the group to have privileged access.
tax	0:66300c77c6e9	327	*/
tax	0:66300c77c6e9	328	static int
tax	0:66300c77c6e9	329	privgroup(char **argv)
tax	0:66300c77c6e9	330	{
tax	0:66300c77c6e9	331	struct group *g;
tax	0:66300c77c6e9	332	int i;
tax	0:66300c77c6e9	333
tax	0:66300c77c6e9	334	g = getgrnam(*argv);
tax	0:66300c77c6e9	335	if (g == 0) {
tax	0:66300c77c6e9	336	option_error("group %s is unknown", *argv);
tax	0:66300c77c6e9	337	return 0;
tax	0:66300c77c6e9	338	}
tax	0:66300c77c6e9	339	for (i = 0; i < ngroups; ++i) {
tax	0:66300c77c6e9	340	if (groups[i] == g->gr_gid) {
tax	0:66300c77c6e9	341	privileged = 1;
tax	0:66300c77c6e9	342	break;
tax	0:66300c77c6e9	343	}
tax	0:66300c77c6e9	344	}
tax	0:66300c77c6e9	345	return 1;
tax	0:66300c77c6e9	346	}
tax	0:66300c77c6e9	347	#endif
tax	0:66300c77c6e9	348
tax	0:66300c77c6e9	349	#if 0 /* UNUSED */
tax	0:66300c77c6e9	350	/*
tax	0:66300c77c6e9	351	* set_noauth_addr - set address(es) that can be used without authentication.
tax	0:66300c77c6e9	352	* Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
tax	0:66300c77c6e9	353	*/
tax	0:66300c77c6e9	354	static int
tax	0:66300c77c6e9	355	set_noauth_addr(char **argv)
tax	0:66300c77c6e9	356	{
tax	0:66300c77c6e9	357	char addr = argv;
tax	0:66300c77c6e9	358	int l = strlen(addr);
tax	0:66300c77c6e9	359	struct wordlist *wp;
tax	0:66300c77c6e9	360
tax	0:66300c77c6e9	361	wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
tax	0:66300c77c6e9	362	if (wp == NULL)
tax	0:66300c77c6e9	363	novm("allow-ip argument");
tax	0:66300c77c6e9	364	wp->word = (char *) (wp + 1);
tax	0:66300c77c6e9	365	wp->next = noauth_addrs;
tax	0:66300c77c6e9	366	BCOPY(addr, wp->word, l);
tax	0:66300c77c6e9	367	noauth_addrs = wp;
tax	0:66300c77c6e9	368	return 1;
tax	0:66300c77c6e9	369	}
tax	0:66300c77c6e9	370	#endif /* UNUSED */
tax	0:66300c77c6e9	371
tax	0:66300c77c6e9	372	/*
tax	0:66300c77c6e9	373	* An Open on LCP has requested a change from Dead to Establish phase.
tax	0:66300c77c6e9	374	* Do what's necessary to bring the physical layer up.
tax	0:66300c77c6e9	375	*/
tax	0:66300c77c6e9	376	void
tax	0:66300c77c6e9	377	link_required(int unit)
tax	0:66300c77c6e9	378	{
tax	0:66300c77c6e9	379	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	380
tax	0:66300c77c6e9	381	AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
tax	0:66300c77c6e9	382	}
tax	0:66300c77c6e9	383
tax	0:66300c77c6e9	384	/*
tax	0:66300c77c6e9	385	* LCP has terminated the link; go to the Dead phase and take the
tax	0:66300c77c6e9	386	* physical layer down.
tax	0:66300c77c6e9	387	*/
tax	0:66300c77c6e9	388	void
tax	0:66300c77c6e9	389	link_terminated(int unit)
tax	0:66300c77c6e9	390	{
tax	0:66300c77c6e9	391	AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
tax	0:66300c77c6e9	392	if (lcp_phase[unit] == PHASE_DEAD) {
tax	0:66300c77c6e9	393	return;
tax	0:66300c77c6e9	394	}
tax	0:66300c77c6e9	395	if (logged_in) {
tax	0:66300c77c6e9	396	plogout();
tax	0:66300c77c6e9	397	}
tax	0:66300c77c6e9	398	lcp_phase[unit] = PHASE_DEAD;
tax	0:66300c77c6e9	399	AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
tax	0:66300c77c6e9	400	pppLinkTerminated(unit);
tax	0:66300c77c6e9	401	}
tax	0:66300c77c6e9	402
tax	0:66300c77c6e9	403	/*
tax	0:66300c77c6e9	404	* LCP has gone down; it will either die or try to re-establish.
tax	0:66300c77c6e9	405	*/
tax	0:66300c77c6e9	406	void
tax	0:66300c77c6e9	407	link_down(int unit)
tax	0:66300c77c6e9	408	{
tax	0:66300c77c6e9	409	int i;
tax	0:66300c77c6e9	410	struct protent *protp;
tax	0:66300c77c6e9	411
tax	0:66300c77c6e9	412	AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
tax	0:66300c77c6e9	413
tax	0:66300c77c6e9	414	if (did_authup) {
tax	0:66300c77c6e9	415	/* XXX Do link down processing. */
tax	0:66300c77c6e9	416	did_authup = 0;
tax	0:66300c77c6e9	417	}
tax	0:66300c77c6e9	418	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
tax	0:66300c77c6e9	419	if (!protp->enabled_flag) {
tax	0:66300c77c6e9	420	continue;
tax	0:66300c77c6e9	421	}
tax	0:66300c77c6e9	422	if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
tax	0:66300c77c6e9	423	(*protp->lowerdown)(unit);
tax	0:66300c77c6e9	424	}
tax	0:66300c77c6e9	425	if (protp->protocol < 0xC000 && protp->close != NULL) {
tax	0:66300c77c6e9	426	(*protp->close)(unit, "LCP down");
tax	0:66300c77c6e9	427	}
tax	0:66300c77c6e9	428	}
tax	0:66300c77c6e9	429	num_np_open = 0; /* number of network protocols we have opened */
tax	0:66300c77c6e9	430	num_np_up = 0; /* Number of network protocols which have come up */
tax	0:66300c77c6e9	431
tax	0:66300c77c6e9	432	if (lcp_phase[unit] != PHASE_DEAD) {
tax	0:66300c77c6e9	433	lcp_phase[unit] = PHASE_TERMINATE;
tax	0:66300c77c6e9	434	}
tax	0:66300c77c6e9	435	pppLinkDown(unit);
tax	0:66300c77c6e9	436	}
tax	0:66300c77c6e9	437
tax	0:66300c77c6e9	438	/*
tax	0:66300c77c6e9	439	* The link is established.
tax	0:66300c77c6e9	440	* Proceed to the Dead, Authenticate or Network phase as appropriate.
tax	0:66300c77c6e9	441	*/
tax	0:66300c77c6e9	442	void
tax	0:66300c77c6e9	443	link_established(int unit)
tax	0:66300c77c6e9	444	{
tax	0:66300c77c6e9	445	int auth;
tax	0:66300c77c6e9	446	int i;
tax	0:66300c77c6e9	447	struct protent *protp;
tax	0:66300c77c6e9	448	lcp_options *wo = &lcp_wantoptions[unit];
tax	0:66300c77c6e9	449	lcp_options *go = &lcp_gotoptions[unit];
tax	0:66300c77c6e9	450	#if PAP_SUPPORT \|\| CHAP_SUPPORT
tax	0:66300c77c6e9	451	lcp_options *ho = &lcp_hisoptions[unit];
tax	0:66300c77c6e9	452	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	453
tax	0:66300c77c6e9	454	AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
tax	0:66300c77c6e9	455	/*
tax	0:66300c77c6e9	456	* Tell higher-level protocols that LCP is up.
tax	0:66300c77c6e9	457	*/
tax	0:66300c77c6e9	458	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
tax	0:66300c77c6e9	459	if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
tax	0:66300c77c6e9	460	(*protp->lowerup)(unit);
tax	0:66300c77c6e9	461	}
tax	0:66300c77c6e9	462	}
tax	0:66300c77c6e9	463	if (ppp_settings.auth_required && !(go->neg_chap \|\| go->neg_upap)) {
tax	0:66300c77c6e9	464	/*
tax	0:66300c77c6e9	465	* We wanted the peer to authenticate itself, and it refused:
tax	0:66300c77c6e9	466	* treat it as though it authenticated with PAP using a username
tax	0:66300c77c6e9	467	* of "" and a password of "". If that's not OK, boot it out.
tax	0:66300c77c6e9	468	*/
tax	0:66300c77c6e9	469	if (!wo->neg_upap \|\| !null_login(unit)) {
tax	0:66300c77c6e9	470	AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
tax	0:66300c77c6e9	471	lcp_close(unit, "peer refused to authenticate");
tax	0:66300c77c6e9	472	return;
tax	0:66300c77c6e9	473	}
tax	0:66300c77c6e9	474	}
tax	0:66300c77c6e9	475
tax	0:66300c77c6e9	476	lcp_phase[unit] = PHASE_AUTHENTICATE;
tax	0:66300c77c6e9	477	auth = 0;
tax	0:66300c77c6e9	478	#if CHAP_SUPPORT
tax	0:66300c77c6e9	479	if (go->neg_chap) {
tax	0:66300c77c6e9	480	ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
tax	0:66300c77c6e9	481	auth \|= CHAP_PEER;
tax	0:66300c77c6e9	482	}
tax	0:66300c77c6e9	483	#endif /* CHAP_SUPPORT */
tax	0:66300c77c6e9	484	#if PAP_SUPPORT && CHAP_SUPPORT
tax	0:66300c77c6e9	485	else
tax	0:66300c77c6e9	486	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
tax	0:66300c77c6e9	487	#if PAP_SUPPORT
tax	0:66300c77c6e9	488	if (go->neg_upap) {
tax	0:66300c77c6e9	489	upap_authpeer(unit);
tax	0:66300c77c6e9	490	auth \|= PAP_PEER;
tax	0:66300c77c6e9	491	}
tax	0:66300c77c6e9	492	#endif /* PAP_SUPPORT */
tax	0:66300c77c6e9	493	#if CHAP_SUPPORT
tax	0:66300c77c6e9	494	if (ho->neg_chap) {
tax	0:66300c77c6e9	495	ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
tax	0:66300c77c6e9	496	auth \|= CHAP_WITHPEER;
tax	0:66300c77c6e9	497	}
tax	0:66300c77c6e9	498	#endif /* CHAP_SUPPORT */
tax	0:66300c77c6e9	499	#if PAP_SUPPORT && CHAP_SUPPORT
tax	0:66300c77c6e9	500	else
tax	0:66300c77c6e9	501	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
tax	0:66300c77c6e9	502	#if PAP_SUPPORT
tax	0:66300c77c6e9	503	if (ho->neg_upap) {
tax	0:66300c77c6e9	504	if (ppp_settings.passwd[0] == 0) {
tax	0:66300c77c6e9	505	passwd_from_file = 1;
tax	0:66300c77c6e9	506	if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
tax	0:66300c77c6e9	507	AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
tax	0:66300c77c6e9	508	}
tax	0:66300c77c6e9	509	}
tax	0:66300c77c6e9	510	upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
tax	0:66300c77c6e9	511	auth \|= PAP_WITHPEER;
tax	0:66300c77c6e9	512	}
tax	0:66300c77c6e9	513	#endif /* PAP_SUPPORT */
tax	0:66300c77c6e9	514	auth_pending[unit] = auth;
tax	0:66300c77c6e9	515
tax	0:66300c77c6e9	516	if (!auth) {
tax	0:66300c77c6e9	517	network_phase(unit);
tax	0:66300c77c6e9	518	}
tax	0:66300c77c6e9	519	}
tax	0:66300c77c6e9	520
tax	0:66300c77c6e9	521	/*
tax	0:66300c77c6e9	522	* Proceed to the network phase.
tax	0:66300c77c6e9	523	*/
tax	0:66300c77c6e9	524	static void
tax	0:66300c77c6e9	525	network_phase(int unit)
tax	0:66300c77c6e9	526	{
tax	0:66300c77c6e9	527	int i;
tax	0:66300c77c6e9	528	struct protent *protp;
tax	0:66300c77c6e9	529	lcp_options *go = &lcp_gotoptions[unit];
tax	0:66300c77c6e9	530
tax	0:66300c77c6e9	531	/*
tax	0:66300c77c6e9	532	* If the peer had to authenticate, run the auth-up script now.
tax	0:66300c77c6e9	533	*/
tax	0:66300c77c6e9	534	if ((go->neg_chap \|\| go->neg_upap) && !did_authup) {
tax	0:66300c77c6e9	535	/* XXX Do setup for peer authentication. */
tax	0:66300c77c6e9	536	did_authup = 1;
tax	0:66300c77c6e9	537	}
tax	0:66300c77c6e9	538
tax	0:66300c77c6e9	539	#if CBCP_SUPPORT
tax	0:66300c77c6e9	540	/*
tax	0:66300c77c6e9	541	* If we negotiated callback, do it now.
tax	0:66300c77c6e9	542	*/
tax	0:66300c77c6e9	543	if (go->neg_cbcp) {
tax	0:66300c77c6e9	544	lcp_phase[unit] = PHASE_CALLBACK;
tax	0:66300c77c6e9	545	(*cbcp_protent.open)(unit);
tax	0:66300c77c6e9	546	return;
tax	0:66300c77c6e9	547	}
tax	0:66300c77c6e9	548	#endif /* CBCP_SUPPORT */
tax	0:66300c77c6e9	549
tax	0:66300c77c6e9	550	lcp_phase[unit] = PHASE_NETWORK;
tax	0:66300c77c6e9	551	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
tax	0:66300c77c6e9	552	if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
tax	0:66300c77c6e9	553	(*protp->open)(unit);
tax	0:66300c77c6e9	554	if (protp->protocol != PPP_CCP) {
tax	0:66300c77c6e9	555	++num_np_open;
tax	0:66300c77c6e9	556	}
tax	0:66300c77c6e9	557	}
tax	0:66300c77c6e9	558	}
tax	0:66300c77c6e9	559
tax	0:66300c77c6e9	560	if (num_np_open == 0) {
tax	0:66300c77c6e9	561	/* nothing to do */
tax	0:66300c77c6e9	562	lcp_close(0, "No network protocols running");
tax	0:66300c77c6e9	563	}
tax	0:66300c77c6e9	564	}
tax	0:66300c77c6e9	565	/* @todo: add void start_networks(void) here (pppd 2.3.11) */
tax	0:66300c77c6e9	566
tax	0:66300c77c6e9	567	/*
tax	0:66300c77c6e9	568	* The peer has failed to authenticate himself using `protocol'.
tax	0:66300c77c6e9	569	*/
tax	0:66300c77c6e9	570	void
tax	0:66300c77c6e9	571	auth_peer_fail(int unit, u16_t protocol)
tax	0:66300c77c6e9	572	{
tax	0:66300c77c6e9	573	LWIP_UNUSED_ARG(protocol);
tax	0:66300c77c6e9	574
tax	0:66300c77c6e9	575	AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
tax	0:66300c77c6e9	576	/*
tax	0:66300c77c6e9	577	* Authentication failure: take the link down
tax	0:66300c77c6e9	578	*/
tax	0:66300c77c6e9	579	lcp_close(unit, "Authentication failed");
tax	0:66300c77c6e9	580	}
tax	0:66300c77c6e9	581
tax	0:66300c77c6e9	582
tax	0:66300c77c6e9	583	#if PAP_SUPPORT \|\| CHAP_SUPPORT
tax	0:66300c77c6e9	584	/*
tax	0:66300c77c6e9	585	* The peer has been successfully authenticated using `protocol'.
tax	0:66300c77c6e9	586	*/
tax	0:66300c77c6e9	587	void
tax	0:66300c77c6e9	588	auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
tax	0:66300c77c6e9	589	{
tax	0:66300c77c6e9	590	int pbit;
tax	0:66300c77c6e9	591
tax	0:66300c77c6e9	592	AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
tax	0:66300c77c6e9	593	switch (protocol) {
tax	0:66300c77c6e9	594	case PPP_CHAP:
tax	0:66300c77c6e9	595	pbit = CHAP_PEER;
tax	0:66300c77c6e9	596	break;
tax	0:66300c77c6e9	597	case PPP_PAP:
tax	0:66300c77c6e9	598	pbit = PAP_PEER;
tax	0:66300c77c6e9	599	break;
tax	0:66300c77c6e9	600	default:
tax	0:66300c77c6e9	601	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
tax	0:66300c77c6e9	602	return;
tax	0:66300c77c6e9	603	}
tax	0:66300c77c6e9	604
tax	0:66300c77c6e9	605	/*
tax	0:66300c77c6e9	606	* Save the authenticated name of the peer for later.
tax	0:66300c77c6e9	607	*/
tax	0:66300c77c6e9	608	if (namelen > (int)sizeof(peer_authname) - 1) {
tax	0:66300c77c6e9	609	namelen = sizeof(peer_authname) - 1;
tax	0:66300c77c6e9	610	}
tax	0:66300c77c6e9	611	BCOPY(name, peer_authname, namelen);
tax	0:66300c77c6e9	612	peer_authname[namelen] = 0;
tax	0:66300c77c6e9	613
tax	0:66300c77c6e9	614	/*
tax	0:66300c77c6e9	615	* If there is no more authentication still to be done,
tax	0:66300c77c6e9	616	* proceed to the network (or callback) phase.
tax	0:66300c77c6e9	617	*/
tax	0:66300c77c6e9	618	if ((auth_pending[unit] &= ~pbit) == 0) {
tax	0:66300c77c6e9	619	network_phase(unit);
tax	0:66300c77c6e9	620	}
tax	0:66300c77c6e9	621	}
tax	0:66300c77c6e9	622
tax	0:66300c77c6e9	623	/*
tax	0:66300c77c6e9	624	* We have failed to authenticate ourselves to the peer using `protocol'.
tax	0:66300c77c6e9	625	*/
tax	0:66300c77c6e9	626	void
tax	0:66300c77c6e9	627	auth_withpeer_fail(int unit, u16_t protocol)
tax	0:66300c77c6e9	628	{
tax	0:66300c77c6e9	629	int errCode = PPPERR_AUTHFAIL;
tax	0:66300c77c6e9	630
tax	0:66300c77c6e9	631	LWIP_UNUSED_ARG(protocol);
tax	0:66300c77c6e9	632
tax	0:66300c77c6e9	633	AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
tax	0:66300c77c6e9	634	if (passwd_from_file) {
tax	0:66300c77c6e9	635	BZERO(ppp_settings.passwd, MAXSECRETLEN);
tax	0:66300c77c6e9	636	}
tax	0:66300c77c6e9	637
tax	0:66300c77c6e9	638	/*
tax	0:66300c77c6e9	639	* We've failed to authenticate ourselves to our peer.
tax	0:66300c77c6e9	640	* He'll probably take the link down, and there's not much
tax	0:66300c77c6e9	641	* we can do except wait for that.
tax	0:66300c77c6e9	642	*/
tax	0:66300c77c6e9	643	pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
tax	0:66300c77c6e9	644	lcp_close(unit, "Failed to authenticate ourselves to peer");
tax	0:66300c77c6e9	645	}
tax	0:66300c77c6e9	646
tax	0:66300c77c6e9	647	/*
tax	0:66300c77c6e9	648	* We have successfully authenticated ourselves with the peer using `protocol'.
tax	0:66300c77c6e9	649	*/
tax	0:66300c77c6e9	650	void
tax	0:66300c77c6e9	651	auth_withpeer_success(int unit, u16_t protocol)
tax	0:66300c77c6e9	652	{
tax	0:66300c77c6e9	653	int pbit;
tax	0:66300c77c6e9	654
tax	0:66300c77c6e9	655	AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
tax	0:66300c77c6e9	656	switch (protocol) {
tax	0:66300c77c6e9	657	case PPP_CHAP:
tax	0:66300c77c6e9	658	pbit = CHAP_WITHPEER;
tax	0:66300c77c6e9	659	break;
tax	0:66300c77c6e9	660	case PPP_PAP:
tax	0:66300c77c6e9	661	if (passwd_from_file) {
tax	0:66300c77c6e9	662	BZERO(ppp_settings.passwd, MAXSECRETLEN);
tax	0:66300c77c6e9	663	}
tax	0:66300c77c6e9	664	pbit = PAP_WITHPEER;
tax	0:66300c77c6e9	665	break;
tax	0:66300c77c6e9	666	default:
tax	0:66300c77c6e9	667	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
tax	0:66300c77c6e9	668	pbit = 0;
tax	0:66300c77c6e9	669	}
tax	0:66300c77c6e9	670
tax	0:66300c77c6e9	671	/*
tax	0:66300c77c6e9	672	* If there is no more authentication still being done,
tax	0:66300c77c6e9	673	* proceed to the network (or callback) phase.
tax	0:66300c77c6e9	674	*/
tax	0:66300c77c6e9	675	if ((auth_pending[unit] &= ~pbit) == 0) {
tax	0:66300c77c6e9	676	network_phase(unit);
tax	0:66300c77c6e9	677	}
tax	0:66300c77c6e9	678	}
tax	0:66300c77c6e9	679	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	680
tax	0:66300c77c6e9	681
tax	0:66300c77c6e9	682	/*
tax	0:66300c77c6e9	683	* np_up - a network protocol has come up.
tax	0:66300c77c6e9	684	*/
tax	0:66300c77c6e9	685	void
tax	0:66300c77c6e9	686	np_up(int unit, u16_t proto)
tax	0:66300c77c6e9	687	{
tax	0:66300c77c6e9	688	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	689	LWIP_UNUSED_ARG(proto);
tax	0:66300c77c6e9	690
tax	0:66300c77c6e9	691	AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
tax	0:66300c77c6e9	692	if (num_np_up == 0) {
tax	0:66300c77c6e9	693	AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
tax	0:66300c77c6e9	694	/*
tax	0:66300c77c6e9	695	* At this point we consider that the link has come up successfully.
tax	0:66300c77c6e9	696	*/
tax	0:66300c77c6e9	697	if (ppp_settings.idle_time_limit > 0) {
tax	0:66300c77c6e9	698	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
tax	0:66300c77c6e9	699	}
tax	0:66300c77c6e9	700
tax	0:66300c77c6e9	701	/*
tax	0:66300c77c6e9	702	* Set a timeout to close the connection once the maximum
tax	0:66300c77c6e9	703	* connect time has expired.
tax	0:66300c77c6e9	704	*/
tax	0:66300c77c6e9	705	if (ppp_settings.maxconnect > 0) {
tax	0:66300c77c6e9	706	TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
tax	0:66300c77c6e9	707	}
tax	0:66300c77c6e9	708	}
tax	0:66300c77c6e9	709	++num_np_up;
tax	0:66300c77c6e9	710	}
tax	0:66300c77c6e9	711
tax	0:66300c77c6e9	712	/*
tax	0:66300c77c6e9	713	* np_down - a network protocol has gone down.
tax	0:66300c77c6e9	714	*/
tax	0:66300c77c6e9	715	void
tax	0:66300c77c6e9	716	np_down(int unit, u16_t proto)
tax	0:66300c77c6e9	717	{
tax	0:66300c77c6e9	718	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	719	LWIP_UNUSED_ARG(proto);
tax	0:66300c77c6e9	720
tax	0:66300c77c6e9	721	AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
tax	0:66300c77c6e9	722	if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
tax	0:66300c77c6e9	723	UNTIMEOUT(check_idle, NULL);
tax	0:66300c77c6e9	724	}
tax	0:66300c77c6e9	725	}
tax	0:66300c77c6e9	726
tax	0:66300c77c6e9	727	/*
tax	0:66300c77c6e9	728	* np_finished - a network protocol has finished using the link.
tax	0:66300c77c6e9	729	*/
tax	0:66300c77c6e9	730	void
tax	0:66300c77c6e9	731	np_finished(int unit, u16_t proto)
tax	0:66300c77c6e9	732	{
tax	0:66300c77c6e9	733	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	734	LWIP_UNUSED_ARG(proto);
tax	0:66300c77c6e9	735
tax	0:66300c77c6e9	736	AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
tax	0:66300c77c6e9	737	if (--num_np_open <= 0) {
tax	0:66300c77c6e9	738	/* no further use for the link: shut up shop. */
tax	0:66300c77c6e9	739	lcp_close(0, "No network protocols running");
tax	0:66300c77c6e9	740	}
tax	0:66300c77c6e9	741	}
tax	0:66300c77c6e9	742
tax	0:66300c77c6e9	743	/*
tax	0:66300c77c6e9	744	* check_idle - check whether the link has been idle for long
tax	0:66300c77c6e9	745	* enough that we can shut it down.
tax	0:66300c77c6e9	746	*/
tax	0:66300c77c6e9	747	static void
tax	0:66300c77c6e9	748	check_idle(void *arg)
tax	0:66300c77c6e9	749	{
tax	0:66300c77c6e9	750	struct ppp_idle idle;
tax	0:66300c77c6e9	751	u_short itime;
tax	0:66300c77c6e9	752
tax	0:66300c77c6e9	753	LWIP_UNUSED_ARG(arg);
tax	0:66300c77c6e9	754	if (!get_idle_time(0, &idle)) {
tax	0:66300c77c6e9	755	return;
tax	0:66300c77c6e9	756	}
tax	0:66300c77c6e9	757	itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
tax	0:66300c77c6e9	758	if (itime >= ppp_settings.idle_time_limit) {
tax	0:66300c77c6e9	759	/* link is idle: shut it down. */
tax	0:66300c77c6e9	760	AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
tax	0:66300c77c6e9	761	lcp_close(0, "Link inactive");
tax	0:66300c77c6e9	762	} else {
tax	0:66300c77c6e9	763	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
tax	0:66300c77c6e9	764	}
tax	0:66300c77c6e9	765	}
tax	0:66300c77c6e9	766
tax	0:66300c77c6e9	767	/*
tax	0:66300c77c6e9	768	* connect_time_expired - log a message and close the connection.
tax	0:66300c77c6e9	769	*/
tax	0:66300c77c6e9	770	static void
tax	0:66300c77c6e9	771	connect_time_expired(void *arg)
tax	0:66300c77c6e9	772	{
tax	0:66300c77c6e9	773	LWIP_UNUSED_ARG(arg);
tax	0:66300c77c6e9	774
tax	0:66300c77c6e9	775	AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
tax	0:66300c77c6e9	776	lcp_close(0, "Connect time expired"); /* Close connection */
tax	0:66300c77c6e9	777	}
tax	0:66300c77c6e9	778
tax	0:66300c77c6e9	779	#if 0 /* UNUSED */
tax	0:66300c77c6e9	780	/*
tax	0:66300c77c6e9	781	* auth_check_options - called to check authentication options.
tax	0:66300c77c6e9	782	*/
tax	0:66300c77c6e9	783	void
tax	0:66300c77c6e9	784	auth_check_options(void)
tax	0:66300c77c6e9	785	{
tax	0:66300c77c6e9	786	lcp_options *wo = &lcp_wantoptions[0];
tax	0:66300c77c6e9	787	int can_auth;
tax	0:66300c77c6e9	788	ipcp_options *ipwo = &ipcp_wantoptions[0];
tax	0:66300c77c6e9	789	u32_t remote;
tax	0:66300c77c6e9	790
tax	0:66300c77c6e9	791	/* Default our_name to hostname, and user to our_name */
tax	0:66300c77c6e9	792	if (ppp_settings.our_name[0] == 0 \|\| ppp_settings.usehostname) {
tax	0:66300c77c6e9	793	strcpy(ppp_settings.our_name, ppp_settings.hostname);
tax	0:66300c77c6e9	794	}
tax	0:66300c77c6e9	795
tax	0:66300c77c6e9	796	if (ppp_settings.user[0] == 0) {
tax	0:66300c77c6e9	797	strcpy(ppp_settings.user, ppp_settings.our_name);
tax	0:66300c77c6e9	798	}
tax	0:66300c77c6e9	799
tax	0:66300c77c6e9	800	/* If authentication is required, ask peer for CHAP or PAP. */
tax	0:66300c77c6e9	801	if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
tax	0:66300c77c6e9	802	wo->neg_chap = 1;
tax	0:66300c77c6e9	803	wo->neg_upap = 1;
tax	0:66300c77c6e9	804	}
tax	0:66300c77c6e9	805
tax	0:66300c77c6e9	806	/*
tax	0:66300c77c6e9	807	* Check whether we have appropriate secrets to use
tax	0:66300c77c6e9	808	* to authenticate the peer.
tax	0:66300c77c6e9	809	*/
tax	0:66300c77c6e9	810	can_auth = wo->neg_upap && have_pap_secret();
tax	0:66300c77c6e9	811	if (!can_auth && wo->neg_chap) {
tax	0:66300c77c6e9	812	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
tax	0:66300c77c6e9	813	can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
tax	0:66300c77c6e9	814	}
tax	0:66300c77c6e9	815
tax	0:66300c77c6e9	816	if (ppp_settings.auth_required && !can_auth) {
tax	0:66300c77c6e9	817	ppp_panic("No auth secret");
tax	0:66300c77c6e9	818	}
tax	0:66300c77c6e9	819	}
tax	0:66300c77c6e9	820	#endif /* UNUSED */
tax	0:66300c77c6e9	821
tax	0:66300c77c6e9	822	/*
tax	0:66300c77c6e9	823	* auth_reset - called when LCP is starting negotiations to recheck
tax	0:66300c77c6e9	824	* authentication options, i.e. whether we have appropriate secrets
tax	0:66300c77c6e9	825	* to use for authenticating ourselves and/or the peer.
tax	0:66300c77c6e9	826	*/
tax	0:66300c77c6e9	827	void
tax	0:66300c77c6e9	828	auth_reset(int unit)
tax	0:66300c77c6e9	829	{
tax	0:66300c77c6e9	830	lcp_options *go = &lcp_gotoptions[unit];
tax	0:66300c77c6e9	831	lcp_options *ao = &lcp_allowoptions[0];
tax	0:66300c77c6e9	832	ipcp_options *ipwo = &ipcp_wantoptions[0];
tax	0:66300c77c6e9	833	u32_t remote;
tax	0:66300c77c6e9	834
tax	0:66300c77c6e9	835	AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
tax	0:66300c77c6e9	836	ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 \|\| get_pap_passwd(unit, NULL, NULL));
tax	0:66300c77c6e9	837	ao->neg_chap = !ppp_settings.refuse_chap && ppp_settings.passwd[0] != 0 /have_chap_secret(ppp_settings.user, ppp_settings.remote_name, (u32_t)0)/;
tax	0:66300c77c6e9	838
tax	0:66300c77c6e9	839	if (go->neg_upap && !have_pap_secret()) {
tax	0:66300c77c6e9	840	go->neg_upap = 0;
tax	0:66300c77c6e9	841	}
tax	0:66300c77c6e9	842	if (go->neg_chap) {
tax	0:66300c77c6e9	843	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
tax	0:66300c77c6e9	844	if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
tax	0:66300c77c6e9	845	go->neg_chap = 0;
tax	0:66300c77c6e9	846	}
tax	0:66300c77c6e9	847	}
tax	0:66300c77c6e9	848	}
tax	0:66300c77c6e9	849
tax	0:66300c77c6e9	850	#if PAP_SUPPORT
tax	0:66300c77c6e9	851	/*
tax	0:66300c77c6e9	852	* check_passwd - Check the user name and passwd against the PAP secrets
tax	0:66300c77c6e9	853	* file. If requested, also check against the system password database,
tax	0:66300c77c6e9	854	* and login the user if OK.
tax	0:66300c77c6e9	855	*
tax	0:66300c77c6e9	856	* returns:
tax	0:66300c77c6e9	857	* UPAP_AUTHNAK: Authentication failed.
tax	0:66300c77c6e9	858	* UPAP_AUTHACK: Authentication succeeded.
tax	0:66300c77c6e9	859	* In either case, msg points to an appropriate message.
tax	0:66300c77c6e9	860	*/
tax	0:66300c77c6e9	861	u_char
tax	0:66300c77c6e9	862	check_passwd( int unit, char auser, int userlen, char apasswd, int passwdlen, char *msg, int msglen)
tax	0:66300c77c6e9	863	{
tax	0:66300c77c6e9	864	#if 1 /* XXX Assume all entries OK. */
tax	0:66300c77c6e9	865	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	866	LWIP_UNUSED_ARG(auser);
tax	0:66300c77c6e9	867	LWIP_UNUSED_ARG(userlen);
tax	0:66300c77c6e9	868	LWIP_UNUSED_ARG(apasswd);
tax	0:66300c77c6e9	869	LWIP_UNUSED_ARG(passwdlen);
tax	0:66300c77c6e9	870	LWIP_UNUSED_ARG(msglen);
tax	0:66300c77c6e9	871	msg = (char ) 0;
tax	0:66300c77c6e9	872	return UPAP_AUTHACK; /* XXX Assume all entries OK. */
tax	0:66300c77c6e9	873	#else
tax	0:66300c77c6e9	874	u_char ret = 0;
tax	0:66300c77c6e9	875	struct wordlist *addrs = NULL;
tax	0:66300c77c6e9	876	char passwd[256], user[256];
tax	0:66300c77c6e9	877	char secret[MAXWORDLEN];
tax	0:66300c77c6e9	878	static u_short attempts = 0;
tax	0:66300c77c6e9	879
tax	0:66300c77c6e9	880	/*
tax	0:66300c77c6e9	881	* Make copies of apasswd and auser, then null-terminate them.
tax	0:66300c77c6e9	882	*/
tax	0:66300c77c6e9	883	BCOPY(apasswd, passwd, passwdlen);
tax	0:66300c77c6e9	884	passwd[passwdlen] = '\0';
tax	0:66300c77c6e9	885	BCOPY(auser, user, userlen);
tax	0:66300c77c6e9	886	user[userlen] = '\0';
tax	0:66300c77c6e9	887	msg = (char ) 0;
tax	0:66300c77c6e9	888
tax	0:66300c77c6e9	889	/* XXX Validate user name and password. */
tax	0:66300c77c6e9	890	ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
tax	0:66300c77c6e9	891
tax	0:66300c77c6e9	892	if (ret == UPAP_AUTHNAK) {
tax	0:66300c77c6e9	893	if (msg == (char ) 0) {
tax	0:66300c77c6e9	894	*msg = "Login incorrect";
tax	0:66300c77c6e9	895	}
tax	0:66300c77c6e9	896	msglen = strlen(msg);
tax	0:66300c77c6e9	897	/*
tax	0:66300c77c6e9	898	* Frustrate passwd stealer programs.
tax	0:66300c77c6e9	899	* Allow 10 tries, but start backing off after 3 (stolen from login).
tax	0:66300c77c6e9	900	* On 10'th, drop the connection.
tax	0:66300c77c6e9	901	*/
tax	0:66300c77c6e9	902	if (attempts++ >= 10) {
tax	0:66300c77c6e9	903	AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
tax	0:66300c77c6e9	904	/ppp_panic("Excess Bad Logins");/
tax	0:66300c77c6e9	905	}
tax	0:66300c77c6e9	906	if (attempts > 3) {
tax	0:66300c77c6e9	907	/* @todo: this was sleep(), i.e. seconds, not milliseconds
tax	0:66300c77c6e9	908	* I don't think we really need this in lwIP - we would block tcpip_thread!
tax	0:66300c77c6e9	909	*/
tax	0:66300c77c6e9	910	/sys_msleep((attempts - 3) 5);*/
tax	0:66300c77c6e9	911	}
tax	0:66300c77c6e9	912	if (addrs != NULL) {
tax	0:66300c77c6e9	913	free_wordlist(addrs);
tax	0:66300c77c6e9	914	}
tax	0:66300c77c6e9	915	} else {
tax	0:66300c77c6e9	916	attempts = 0; /* Reset count */
tax	0:66300c77c6e9	917	if (msg == (char ) 0) {
tax	0:66300c77c6e9	918	*msg = "Login ok";
tax	0:66300c77c6e9	919	}
tax	0:66300c77c6e9	920	msglen = strlen(msg);
tax	0:66300c77c6e9	921	set_allowed_addrs(unit, addrs);
tax	0:66300c77c6e9	922	}
tax	0:66300c77c6e9	923
tax	0:66300c77c6e9	924	BZERO(passwd, sizeof(passwd));
tax	0:66300c77c6e9	925	BZERO(secret, sizeof(secret));
tax	0:66300c77c6e9	926
tax	0:66300c77c6e9	927	return ret;
tax	0:66300c77c6e9	928	#endif
tax	0:66300c77c6e9	929	}
tax	0:66300c77c6e9	930	#endif /* PAP_SUPPORT */
tax	0:66300c77c6e9	931
tax	0:66300c77c6e9	932	#if 0 /* UNUSED */
tax	0:66300c77c6e9	933	/*
tax	0:66300c77c6e9	934	* This function is needed for PAM.
tax	0:66300c77c6e9	935	*/
tax	0:66300c77c6e9	936
tax	0:66300c77c6e9	937	#ifdef USE_PAM
tax	0:66300c77c6e9	938
tax	0:66300c77c6e9	939	/* lwip does not support PAM*/
tax	0:66300c77c6e9	940
tax	0:66300c77c6e9	941	#endif /* USE_PAM */
tax	0:66300c77c6e9	942
tax	0:66300c77c6e9	943	#endif /* UNUSED */
tax	0:66300c77c6e9	944
tax	0:66300c77c6e9	945
tax	0:66300c77c6e9	946	#if 0 /* UNUSED */
tax	0:66300c77c6e9	947	/*
tax	0:66300c77c6e9	948	* plogin - Check the user name and password against the system
tax	0:66300c77c6e9	949	* password database, and login the user if OK.
tax	0:66300c77c6e9	950	*
tax	0:66300c77c6e9	951	* returns:
tax	0:66300c77c6e9	952	* UPAP_AUTHNAK: Login failed.
tax	0:66300c77c6e9	953	* UPAP_AUTHACK: Login succeeded.
tax	0:66300c77c6e9	954	* In either case, msg points to an appropriate message.
tax	0:66300c77c6e9	955	*/
tax	0:66300c77c6e9	956	static int
tax	0:66300c77c6e9	957	plogin(char user, char passwd, char *msg, int msglen)
tax	0:66300c77c6e9	958	{
tax	0:66300c77c6e9	959
tax	0:66300c77c6e9	960	LWIP_UNUSED_ARG(user);
tax	0:66300c77c6e9	961	LWIP_UNUSED_ARG(passwd);
tax	0:66300c77c6e9	962	LWIP_UNUSED_ARG(msg);
tax	0:66300c77c6e9	963	LWIP_UNUSED_ARG(msglen);
tax	0:66300c77c6e9	964
tax	0:66300c77c6e9	965
tax	0:66300c77c6e9	966	/* The new lines are here align the file when
tax	0:66300c77c6e9	967	* compared against the pppd 2.3.11 code */
tax	0:66300c77c6e9	968
tax	0:66300c77c6e9	969
tax	0:66300c77c6e9	970
tax	0:66300c77c6e9	971
tax	0:66300c77c6e9	972
tax	0:66300c77c6e9	973
tax	0:66300c77c6e9	974
tax	0:66300c77c6e9	975
tax	0:66300c77c6e9	976
tax	0:66300c77c6e9	977
tax	0:66300c77c6e9	978
tax	0:66300c77c6e9	979
tax	0:66300c77c6e9	980
tax	0:66300c77c6e9	981
tax	0:66300c77c6e9	982
tax	0:66300c77c6e9	983
tax	0:66300c77c6e9	984	/* XXX Fail until we decide that we want to support logins. */
tax	0:66300c77c6e9	985	return (UPAP_AUTHNAK);
tax	0:66300c77c6e9	986	}
tax	0:66300c77c6e9	987	#endif
tax	0:66300c77c6e9	988
tax	0:66300c77c6e9	989
tax	0:66300c77c6e9	990
tax	0:66300c77c6e9	991	/*
tax	0:66300c77c6e9	992	* plogout - Logout the user.
tax	0:66300c77c6e9	993	*/
tax	0:66300c77c6e9	994	static void
tax	0:66300c77c6e9	995	plogout(void)
tax	0:66300c77c6e9	996	{
tax	0:66300c77c6e9	997	logged_in = 0;
tax	0:66300c77c6e9	998	}
tax	0:66300c77c6e9	999
tax	0:66300c77c6e9	1000	/*
tax	0:66300c77c6e9	1001	* null_login - Check if a username of "" and a password of "" are
tax	0:66300c77c6e9	1002	* acceptable, and iff so, set the list of acceptable IP addresses
tax	0:66300c77c6e9	1003	* and return 1.
tax	0:66300c77c6e9	1004	*/
tax	0:66300c77c6e9	1005	static int
tax	0:66300c77c6e9	1006	null_login(int unit)
tax	0:66300c77c6e9	1007	{
tax	0:66300c77c6e9	1008	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	1009	/* XXX Fail until we decide that we want to support logins. */
tax	0:66300c77c6e9	1010	return 0;
tax	0:66300c77c6e9	1011	}
tax	0:66300c77c6e9	1012
tax	0:66300c77c6e9	1013
tax	0:66300c77c6e9	1014	/*
tax	0:66300c77c6e9	1015	* get_pap_passwd - get a password for authenticating ourselves with
tax	0:66300c77c6e9	1016	* our peer using PAP. Returns 1 on success, 0 if no suitable password
tax	0:66300c77c6e9	1017	* could be found.
tax	0:66300c77c6e9	1018	*/
tax	0:66300c77c6e9	1019	static int
tax	0:66300c77c6e9	1020	get_pap_passwd(int unit, char user, char passwd)
tax	0:66300c77c6e9	1021	{
tax	0:66300c77c6e9	1022	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	1023	/* normally we would reject PAP if no password is provided,
tax	0:66300c77c6e9	1024	but this causes problems with some providers (like CHT in Taiwan)
tax	0:66300c77c6e9	1025	who incorrectly request PAP and expect a bogus/empty password, so
tax	0:66300c77c6e9	1026	always provide a default user/passwd of "none"/"none"
tax	0:66300c77c6e9	1027
tax	0:66300c77c6e9	1028	@todo: This should be configured by the user, instead of being hardcoded here!
tax	0:66300c77c6e9	1029	*/
tax	0:66300c77c6e9	1030	if(user) {
tax	0:66300c77c6e9	1031	strcpy(user, "none");
tax	0:66300c77c6e9	1032	}
tax	0:66300c77c6e9	1033	if(passwd) {
tax	0:66300c77c6e9	1034	strcpy(passwd, "none");
tax	0:66300c77c6e9	1035	}
tax	0:66300c77c6e9	1036	return 1;
tax	0:66300c77c6e9	1037	}
tax	0:66300c77c6e9	1038
tax	0:66300c77c6e9	1039	/*
tax	0:66300c77c6e9	1040	* have_pap_secret - check whether we have a PAP file with any
tax	0:66300c77c6e9	1041	* secrets that we could possibly use for authenticating the peer.
tax	0:66300c77c6e9	1042	*/
tax	0:66300c77c6e9	1043	static int
tax	0:66300c77c6e9	1044	have_pap_secret(void)
tax	0:66300c77c6e9	1045	{
tax	0:66300c77c6e9	1046	/* XXX Fail until we set up our passwords. */
tax	0:66300c77c6e9	1047	return 0;
tax	0:66300c77c6e9	1048	}
tax	0:66300c77c6e9	1049
tax	0:66300c77c6e9	1050	/*
tax	0:66300c77c6e9	1051	* have_chap_secret - check whether we have a CHAP file with a
tax	0:66300c77c6e9	1052	* secret that we could possibly use for authenticating `client'
tax	0:66300c77c6e9	1053	* on `server'. Either can be the null string, meaning we don't
tax	0:66300c77c6e9	1054	* know the identity yet.
tax	0:66300c77c6e9	1055	*/
tax	0:66300c77c6e9	1056	static int
tax	0:66300c77c6e9	1057	have_chap_secret(char client, char server, u32_t remote)
tax	0:66300c77c6e9	1058	{
tax	0:66300c77c6e9	1059	LWIP_UNUSED_ARG(client);
tax	0:66300c77c6e9	1060	LWIP_UNUSED_ARG(server);
tax	0:66300c77c6e9	1061	LWIP_UNUSED_ARG(remote);
tax	0:66300c77c6e9	1062
tax	0:66300c77c6e9	1063	/* XXX Fail until we set up our passwords. */
tax	0:66300c77c6e9	1064	return 0;
tax	0:66300c77c6e9	1065	}
tax	0:66300c77c6e9	1066	#if CHAP_SUPPORT
tax	0:66300c77c6e9	1067
tax	0:66300c77c6e9	1068	/*
tax	0:66300c77c6e9	1069	* get_secret - open the CHAP secret file and return the secret
tax	0:66300c77c6e9	1070	* for authenticating the given client on the given server.
tax	0:66300c77c6e9	1071	* (We could be either client or server).
tax	0:66300c77c6e9	1072	*/
tax	0:66300c77c6e9	1073	int
tax	0:66300c77c6e9	1074	get_secret(int unit, char client, char server, char secret, int secret_len, int save_addrs)
tax	0:66300c77c6e9	1075	{
tax	0:66300c77c6e9	1076	#if 1
tax	0:66300c77c6e9	1077	int len;
tax	0:66300c77c6e9	1078	struct wordlist *addrs;
tax	0:66300c77c6e9	1079
tax	0:66300c77c6e9	1080	LWIP_UNUSED_ARG(unit);
tax	0:66300c77c6e9	1081	LWIP_UNUSED_ARG(server);
tax	0:66300c77c6e9	1082	LWIP_UNUSED_ARG(save_addrs);
tax	0:66300c77c6e9	1083
tax	0:66300c77c6e9	1084	addrs = NULL;
tax	0:66300c77c6e9	1085
tax	0:66300c77c6e9	1086	if(!client \|\| !client[0] \|\| strcmp(client, ppp_settings.user)) {
tax	0:66300c77c6e9	1087	return 0;
tax	0:66300c77c6e9	1088	}
tax	0:66300c77c6e9	1089
tax	0:66300c77c6e9	1090	len = (int)strlen(ppp_settings.passwd);
tax	0:66300c77c6e9	1091	if (len > MAXSECRETLEN) {
tax	0:66300c77c6e9	1092	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
tax	0:66300c77c6e9	1093	len = MAXSECRETLEN;
tax	0:66300c77c6e9	1094	}
tax	0:66300c77c6e9	1095
tax	0:66300c77c6e9	1096	BCOPY(ppp_settings.passwd, secret, len);
tax	0:66300c77c6e9	1097	*secret_len = len;
tax	0:66300c77c6e9	1098
tax	0:66300c77c6e9	1099	return 1;
tax	0:66300c77c6e9	1100	#else
tax	0:66300c77c6e9	1101	int ret = 0, len;
tax	0:66300c77c6e9	1102	struct wordlist *addrs;
tax	0:66300c77c6e9	1103	char secbuf[MAXWORDLEN];
tax	0:66300c77c6e9	1104
tax	0:66300c77c6e9	1105	addrs = NULL;
tax	0:66300c77c6e9	1106	secbuf[0] = 0;
tax	0:66300c77c6e9	1107
tax	0:66300c77c6e9	1108	/* XXX Find secret. */
tax	0:66300c77c6e9	1109	if (ret < 0) {
tax	0:66300c77c6e9	1110	return 0;
tax	0:66300c77c6e9	1111	}
tax	0:66300c77c6e9	1112
tax	0:66300c77c6e9	1113	if (save_addrs) {
tax	0:66300c77c6e9	1114	set_allowed_addrs(unit, addrs);
tax	0:66300c77c6e9	1115	}
tax	0:66300c77c6e9	1116
tax	0:66300c77c6e9	1117	len = strlen(secbuf);
tax	0:66300c77c6e9	1118	if (len > MAXSECRETLEN) {
tax	0:66300c77c6e9	1119	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
tax	0:66300c77c6e9	1120	len = MAXSECRETLEN;
tax	0:66300c77c6e9	1121	}
tax	0:66300c77c6e9	1122
tax	0:66300c77c6e9	1123	BCOPY(secbuf, secret, len);
tax	0:66300c77c6e9	1124	BZERO(secbuf, sizeof(secbuf));
tax	0:66300c77c6e9	1125	*secret_len = len;
tax	0:66300c77c6e9	1126
tax	0:66300c77c6e9	1127	return 1;
tax	0:66300c77c6e9	1128	#endif
tax	0:66300c77c6e9	1129	}
tax	0:66300c77c6e9	1130	#endif /* CHAP_SUPPORT */
tax	0:66300c77c6e9	1131
tax	0:66300c77c6e9	1132
tax	0:66300c77c6e9	1133	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	1134	/*
tax	0:66300c77c6e9	1135	* set_allowed_addrs() - set the list of allowed addresses.
tax	0:66300c77c6e9	1136	*/
tax	0:66300c77c6e9	1137	static void
tax	0:66300c77c6e9	1138	set_allowed_addrs(int unit, struct wordlist *addrs)
tax	0:66300c77c6e9	1139	{
tax	0:66300c77c6e9	1140	if (addresses[unit] != NULL) {
tax	0:66300c77c6e9	1141	free_wordlist(addresses[unit]);
tax	0:66300c77c6e9	1142	}
tax	0:66300c77c6e9	1143	addresses[unit] = addrs;
tax	0:66300c77c6e9	1144
tax	0:66300c77c6e9	1145	#if 0
tax	0:66300c77c6e9	1146	/*
tax	0:66300c77c6e9	1147	* If there's only one authorized address we might as well
tax	0:66300c77c6e9	1148	* ask our peer for that one right away
tax	0:66300c77c6e9	1149	*/
tax	0:66300c77c6e9	1150	if (addrs != NULL && addrs->next == NULL) {
tax	0:66300c77c6e9	1151	char *p = addrs->word;
tax	0:66300c77c6e9	1152	struct ipcp_options *wo = &ipcp_wantoptions[unit];
tax	0:66300c77c6e9	1153	u32_t a;
tax	0:66300c77c6e9	1154	struct hostent *hp;
tax	0:66300c77c6e9	1155
tax	0:66300c77c6e9	1156	if (wo->hisaddr == 0 && p != '!' && p != '-' && strchr(p, '/') == NULL) {
tax	0:66300c77c6e9	1157	hp = gethostbyname(p);
tax	0:66300c77c6e9	1158	if (hp != NULL && hp->h_addrtype == AF_INET) {
tax	0:66300c77c6e9	1159	a = (u32_t )hp->h_addr;
tax	0:66300c77c6e9	1160	} else {
tax	0:66300c77c6e9	1161	a = inet_addr(p);
tax	0:66300c77c6e9	1162	}
tax	0:66300c77c6e9	1163	if (a != (u32_t) -1) {
tax	0:66300c77c6e9	1164	wo->hisaddr = a;
tax	0:66300c77c6e9	1165	}
tax	0:66300c77c6e9	1166	}
tax	0:66300c77c6e9	1167	}
tax	0:66300c77c6e9	1168	#endif
tax	0:66300c77c6e9	1169	}
tax	0:66300c77c6e9	1170	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	1171
tax	0:66300c77c6e9	1172	/*
tax	0:66300c77c6e9	1173	* auth_ip_addr - check whether the peer is authorized to use
tax	0:66300c77c6e9	1174	* a given IP address. Returns 1 if authorized, 0 otherwise.
tax	0:66300c77c6e9	1175	*/
tax	0:66300c77c6e9	1176	int
tax	0:66300c77c6e9	1177	auth_ip_addr(int unit, u32_t addr)
tax	0:66300c77c6e9	1178	{
tax	0:66300c77c6e9	1179	return ip_addr_check(addr, addresses[unit]);
tax	0:66300c77c6e9	1180	}
tax	0:66300c77c6e9	1181
tax	0:66300c77c6e9	1182	static int /* @todo: integrate this funtion into auth_ip_addr()*/
tax	0:66300c77c6e9	1183	ip_addr_check(u32_t addr, struct wordlist *addrs)
tax	0:66300c77c6e9	1184	{
tax	0:66300c77c6e9	1185	/* don't allow loopback or multicast address */
tax	0:66300c77c6e9	1186	if (bad_ip_adrs(addr)) {
tax	0:66300c77c6e9	1187	return 0;
tax	0:66300c77c6e9	1188	}
tax	0:66300c77c6e9	1189
tax	0:66300c77c6e9	1190	if (addrs == NULL) {
tax	0:66300c77c6e9	1191	return !ppp_settings.auth_required; /* no addresses authorized */
tax	0:66300c77c6e9	1192	}
tax	0:66300c77c6e9	1193
tax	0:66300c77c6e9	1194	/* XXX All other addresses allowed. */
tax	0:66300c77c6e9	1195	return 1;
tax	0:66300c77c6e9	1196	}
tax	0:66300c77c6e9	1197
tax	0:66300c77c6e9	1198	/*
tax	0:66300c77c6e9	1199	* bad_ip_adrs - return 1 if the IP address is one we don't want
tax	0:66300c77c6e9	1200	* to use, such as an address in the loopback net or a multicast address.
tax	0:66300c77c6e9	1201	* addr is in network byte order.
tax	0:66300c77c6e9	1202	*/
tax	0:66300c77c6e9	1203	int
tax	0:66300c77c6e9	1204	bad_ip_adrs(u32_t addr)
tax	0:66300c77c6e9	1205	{
tax	0:66300c77c6e9	1206	addr = ntohl(addr);
tax	0:66300c77c6e9	1207	return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
tax	0:66300c77c6e9	1208	\|\| IN_MULTICAST(addr) \|\| IN_BADCLASS(addr);
tax	0:66300c77c6e9	1209	}
tax	0:66300c77c6e9	1210
tax	0:66300c77c6e9	1211	#if 0 /* UNUSED / / PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	1212	/*
tax	0:66300c77c6e9	1213	* some_ip_ok - check a wordlist to see if it authorizes any
tax	0:66300c77c6e9	1214	* IP address(es).
tax	0:66300c77c6e9	1215	*/
tax	0:66300c77c6e9	1216	static int
tax	0:66300c77c6e9	1217	some_ip_ok(struct wordlist *addrs)
tax	0:66300c77c6e9	1218	{
tax	0:66300c77c6e9	1219	for (; addrs != 0; addrs = addrs->next) {
tax	0:66300c77c6e9	1220	if (addrs->word[0] == '-')
tax	0:66300c77c6e9	1221	break;
tax	0:66300c77c6e9	1222	if (addrs->word[0] != '!')
tax	0:66300c77c6e9	1223	return 1; /* some IP address is allowed */
tax	0:66300c77c6e9	1224	}
tax	0:66300c77c6e9	1225	return 0;
tax	0:66300c77c6e9	1226	}
tax	0:66300c77c6e9	1227
tax	0:66300c77c6e9	1228	/*
tax	0:66300c77c6e9	1229	* check_access - complain if a secret file has too-liberal permissions.
tax	0:66300c77c6e9	1230	*/
tax	0:66300c77c6e9	1231	static void
tax	0:66300c77c6e9	1232	check_access(FILE f, char filename)
tax	0:66300c77c6e9	1233	{
tax	0:66300c77c6e9	1234	struct stat sbuf;
tax	0:66300c77c6e9	1235
tax	0:66300c77c6e9	1236	if (fstat(fileno(f), &sbuf) < 0) {
tax	0:66300c77c6e9	1237	warn("cannot stat secret file %s: %m", filename);
tax	0:66300c77c6e9	1238	} else if ((sbuf.st_mode & (S_IRWXG \| S_IRWXO)) != 0) {
tax	0:66300c77c6e9	1239	warn("Warning - secret file %s has world and/or group access",
tax	0:66300c77c6e9	1240	filename);
tax	0:66300c77c6e9	1241	}
tax	0:66300c77c6e9	1242	}
tax	0:66300c77c6e9	1243
tax	0:66300c77c6e9	1244
tax	0:66300c77c6e9	1245	/*
tax	0:66300c77c6e9	1246	* scan_authfile - Scan an authorization file for a secret suitable
tax	0:66300c77c6e9	1247	* for authenticating `client' on `server'. The return value is -1
tax	0:66300c77c6e9	1248	* if no secret is found, otherwise >= 0. The return value has
tax	0:66300c77c6e9	1249	* NONWILD_CLIENT set if the secret didn't have "*" for the client, and
tax	0:66300c77c6e9	1250	* NONWILD_SERVER set if the secret didn't have "*" for the server.
tax	0:66300c77c6e9	1251	* Any following words on the line up to a "--" (i.e. address authorization
tax	0:66300c77c6e9	1252	* info) are placed in a wordlist and returned in *addrs. Any
tax	0:66300c77c6e9	1253	* following words (extra options) are placed in a wordlist and
tax	0:66300c77c6e9	1254	* returned in *opts.
tax	0:66300c77c6e9	1255	* We assume secret is NULL or points to MAXWORDLEN bytes of space.
tax	0:66300c77c6e9	1256	*/
tax	0:66300c77c6e9	1257	static int
tax	0:66300c77c6e9	1258	scan_authfile(FILE f, char client, char server, char secret, struct wordlist addrs, struct wordlist opts, char *filename)
tax	0:66300c77c6e9	1259	{
tax	0:66300c77c6e9	1260	/* We do not (currently) need this in lwip */
tax	0:66300c77c6e9	1261	return 0; /* dummy */
tax	0:66300c77c6e9	1262	}
tax	0:66300c77c6e9	1263	/*
tax	0:66300c77c6e9	1264	* free_wordlist - release memory allocated for a wordlist.
tax	0:66300c77c6e9	1265	*/
tax	0:66300c77c6e9	1266	static void
tax	0:66300c77c6e9	1267	free_wordlist(struct wordlist *wp)
tax	0:66300c77c6e9	1268	{
tax	0:66300c77c6e9	1269	struct wordlist *next;
tax	0:66300c77c6e9	1270
tax	0:66300c77c6e9	1271	while (wp != NULL) {
tax	0:66300c77c6e9	1272	next = wp->next;
tax	0:66300c77c6e9	1273	free(wp);
tax	0:66300c77c6e9	1274	wp = next;
tax	0:66300c77c6e9	1275	}
tax	0:66300c77c6e9	1276	}
tax	0:66300c77c6e9	1277
tax	0:66300c77c6e9	1278	/*
tax	0:66300c77c6e9	1279	* auth_script_done - called when the auth-up or auth-down script
tax	0:66300c77c6e9	1280	* has finished.
tax	0:66300c77c6e9	1281	*/
tax	0:66300c77c6e9	1282	static void
tax	0:66300c77c6e9	1283	auth_script_done(void *arg)
tax	0:66300c77c6e9	1284	{
tax	0:66300c77c6e9	1285	auth_script_pid = 0;
tax	0:66300c77c6e9	1286	switch (auth_script_state) {
tax	0:66300c77c6e9	1287	case s_up:
tax	0:66300c77c6e9	1288	if (auth_state == s_down) {
tax	0:66300c77c6e9	1289	auth_script_state = s_down;
tax	0:66300c77c6e9	1290	auth_script(_PATH_AUTHDOWN);
tax	0:66300c77c6e9	1291	}
tax	0:66300c77c6e9	1292	break;
tax	0:66300c77c6e9	1293	case s_down:
tax	0:66300c77c6e9	1294	if (auth_state == s_up) {
tax	0:66300c77c6e9	1295	auth_script_state = s_up;
tax	0:66300c77c6e9	1296	auth_script(_PATH_AUTHUP);
tax	0:66300c77c6e9	1297	}
tax	0:66300c77c6e9	1298	break;
tax	0:66300c77c6e9	1299	}
tax	0:66300c77c6e9	1300	}
tax	0:66300c77c6e9	1301
tax	0:66300c77c6e9	1302	/*
tax	0:66300c77c6e9	1303	* auth_script - execute a script with arguments
tax	0:66300c77c6e9	1304	* interface-name peer-name real-user tty speed
tax	0:66300c77c6e9	1305	*/
tax	0:66300c77c6e9	1306	static void
tax	0:66300c77c6e9	1307	auth_script(char *script)
tax	0:66300c77c6e9	1308	{
tax	0:66300c77c6e9	1309	char strspeed[32];
tax	0:66300c77c6e9	1310	struct passwd *pw;
tax	0:66300c77c6e9	1311	char struid[32];
tax	0:66300c77c6e9	1312	char *user_name;
tax	0:66300c77c6e9	1313	char *argv[8];
tax	0:66300c77c6e9	1314
tax	0:66300c77c6e9	1315	if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
tax	0:66300c77c6e9	1316	user_name = pw->pw_name;
tax	0:66300c77c6e9	1317	else {
tax	0:66300c77c6e9	1318	slprintf(struid, sizeof(struid), "%d", getuid());
tax	0:66300c77c6e9	1319	user_name = struid;
tax	0:66300c77c6e9	1320	}
tax	0:66300c77c6e9	1321	slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
tax	0:66300c77c6e9	1322
tax	0:66300c77c6e9	1323	argv[0] = script;
tax	0:66300c77c6e9	1324	argv[1] = ifname;
tax	0:66300c77c6e9	1325	argv[2] = peer_authname;
tax	0:66300c77c6e9	1326	argv[3] = user_name;
tax	0:66300c77c6e9	1327	argv[4] = devnam;
tax	0:66300c77c6e9	1328	argv[5] = strspeed;
tax	0:66300c77c6e9	1329	argv[6] = NULL;
tax	0:66300c77c6e9	1330
tax	0:66300c77c6e9	1331	auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
tax	0:66300c77c6e9	1332	}
tax	0:66300c77c6e9	1333	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
tax	0:66300c77c6e9	1334	#endif /* PPP_SUPPORT */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	29 Mar 2011
Imports:	16
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

lwip/netif/ppp/auth.c@0:66300c77c6e9, 2011-03-29 (annotated)

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