BF_Websocket

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Brandon Fictorie / Mbed 2 deprecated BF_Websocket

NetServices/lwip/netif/ppp/auth.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	* auth.c - Network Authentication and Phase Control program file.
bfictorie	0:8cdad1c73e8e	3	*
bfictorie	0:8cdad1c73e8e	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
bfictorie	0:8cdad1c73e8e	5	* Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
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	* 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
bfictorie	0:8cdad1c73e8e	31	* Ported from public pppd code.
bfictorie	0:8cdad1c73e8e	32	*****************************************************************************/
bfictorie	0:8cdad1c73e8e	33	/*
bfictorie	0:8cdad1c73e8e	34	* auth.c - PPP authentication and phase control.
bfictorie	0:8cdad1c73e8e	35	*
bfictorie	0:8cdad1c73e8e	36	* Copyright (c) 1993 The Australian National University.
bfictorie	0:8cdad1c73e8e	37	* All rights reserved.
bfictorie	0:8cdad1c73e8e	38	*
bfictorie	0:8cdad1c73e8e	39	* Redistribution and use in source and binary forms are permitted
bfictorie	0:8cdad1c73e8e	40	* provided that the above copyright notice and this paragraph are
bfictorie	0:8cdad1c73e8e	41	* duplicated in all such forms and that any documentation,
bfictorie	0:8cdad1c73e8e	42	* advertising materials, and other materials related to such
bfictorie	0:8cdad1c73e8e	43	* distribution and use acknowledge that the software was developed
bfictorie	0:8cdad1c73e8e	44	* by the Australian National University. The name of the University
bfictorie	0:8cdad1c73e8e	45	* may not be used to endorse or promote products derived from this
bfictorie	0:8cdad1c73e8e	46	* software without specific prior written permission.
bfictorie	0:8cdad1c73e8e	47	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	48	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
bfictorie	0:8cdad1c73e8e	49	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
bfictorie	0:8cdad1c73e8e	50	*
bfictorie	0:8cdad1c73e8e	51	* Copyright (c) 1989 Carnegie Mellon University.
bfictorie	0:8cdad1c73e8e	52	* All rights reserved.
bfictorie	0:8cdad1c73e8e	53	*
bfictorie	0:8cdad1c73e8e	54	* Redistribution and use in source and binary forms are permitted
bfictorie	0:8cdad1c73e8e	55	* provided that the above copyright notice and this paragraph are
bfictorie	0:8cdad1c73e8e	56	* duplicated in all such forms and that any documentation,
bfictorie	0:8cdad1c73e8e	57	* advertising materials, and other materials related to such
bfictorie	0:8cdad1c73e8e	58	* distribution and use acknowledge that the software was developed
bfictorie	0:8cdad1c73e8e	59	* by Carnegie Mellon University. The name of the
bfictorie	0:8cdad1c73e8e	60	* University may not be used to endorse or promote products derived
bfictorie	0:8cdad1c73e8e	61	* from this software without specific prior written permission.
bfictorie	0:8cdad1c73e8e	62	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
bfictorie	0:8cdad1c73e8e	63	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
bfictorie	0:8cdad1c73e8e	64	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
bfictorie	0:8cdad1c73e8e	65	*/
bfictorie	0:8cdad1c73e8e	66
bfictorie	0:8cdad1c73e8e	67	#include "lwip/opt.h"
bfictorie	0:8cdad1c73e8e	68
bfictorie	0:8cdad1c73e8e	69	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
bfictorie	0:8cdad1c73e8e	70
bfictorie	0:8cdad1c73e8e	71	#include "ppp.h"
bfictorie	0:8cdad1c73e8e	72	#include "pppdebug.h"
bfictorie	0:8cdad1c73e8e	73
bfictorie	0:8cdad1c73e8e	74	#include "fsm.h"
bfictorie	0:8cdad1c73e8e	75	#include "lcp.h"
bfictorie	0:8cdad1c73e8e	76	#include "pap.h"
bfictorie	0:8cdad1c73e8e	77	#include "chap.h"
bfictorie	0:8cdad1c73e8e	78	#include "auth.h"
bfictorie	0:8cdad1c73e8e	79	#include "ipcp.h"
bfictorie	0:8cdad1c73e8e	80
bfictorie	0:8cdad1c73e8e	81	#if CBCP_SUPPORT
bfictorie	0:8cdad1c73e8e	82	#include "cbcp.h"
bfictorie	0:8cdad1c73e8e	83	#endif /* CBCP_SUPPORT */
bfictorie	0:8cdad1c73e8e	84
bfictorie	0:8cdad1c73e8e	85	#include "lwip/inet.h"
bfictorie	0:8cdad1c73e8e	86
bfictorie	0:8cdad1c73e8e	87	#include <string.h>
bfictorie	0:8cdad1c73e8e	88
bfictorie	0:8cdad1c73e8e	89	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	90	/* Bits in scan_authfile return value */
bfictorie	0:8cdad1c73e8e	91	#define NONWILD_SERVER 1
bfictorie	0:8cdad1c73e8e	92	#define NONWILD_CLIENT 2
bfictorie	0:8cdad1c73e8e	93
bfictorie	0:8cdad1c73e8e	94	#define ISWILD(word) (word[0] == '*' && word[1] == 0)
bfictorie	0:8cdad1c73e8e	95	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	96
bfictorie	0:8cdad1c73e8e	97	#if PAP_SUPPORT \|\| CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	98	/* The name by which the peer authenticated itself to us. */
bfictorie	0:8cdad1c73e8e	99	static char peer_authname[MAXNAMELEN];
bfictorie	0:8cdad1c73e8e	100	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	101
bfictorie	0:8cdad1c73e8e	102	/* Records which authentication operations haven't completed yet. */
bfictorie	0:8cdad1c73e8e	103	static int auth_pending[NUM_PPP];
bfictorie	0:8cdad1c73e8e	104
bfictorie	0:8cdad1c73e8e	105	/* Set if we have successfully called plogin() */
bfictorie	0:8cdad1c73e8e	106	static int logged_in;
bfictorie	0:8cdad1c73e8e	107
bfictorie	0:8cdad1c73e8e	108	/* Set if we have run the /etc/ppp/auth-up script. */
bfictorie	0:8cdad1c73e8e	109	static int did_authup; /* @todo, we don't need this in lwip*/
bfictorie	0:8cdad1c73e8e	110
bfictorie	0:8cdad1c73e8e	111	/* List of addresses which the peer may use. */
bfictorie	0:8cdad1c73e8e	112	static struct wordlist *addresses[NUM_PPP];
bfictorie	0:8cdad1c73e8e	113
bfictorie	0:8cdad1c73e8e	114	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	115	/* Wordlist giving addresses which the peer may use
bfictorie	0:8cdad1c73e8e	116	without authenticating itself. */
bfictorie	0:8cdad1c73e8e	117	static struct wordlist *noauth_addrs;
bfictorie	0:8cdad1c73e8e	118
bfictorie	0:8cdad1c73e8e	119	/* Extra options to apply, from the secrets file entry for the peer. */
bfictorie	0:8cdad1c73e8e	120	static struct wordlist *extra_options;
bfictorie	0:8cdad1c73e8e	121	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	122
bfictorie	0:8cdad1c73e8e	123	/* Number of network protocols which we have opened. */
bfictorie	0:8cdad1c73e8e	124	static int num_np_open;
bfictorie	0:8cdad1c73e8e	125
bfictorie	0:8cdad1c73e8e	126	/* Number of network protocols which have come up. */
bfictorie	0:8cdad1c73e8e	127	static int num_np_up;
bfictorie	0:8cdad1c73e8e	128
bfictorie	0:8cdad1c73e8e	129	#if PAP_SUPPORT \|\| CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	130	/* Set if we got the contents of passwd[] from the pap-secrets file. */
bfictorie	0:8cdad1c73e8e	131	static int passwd_from_file;
bfictorie	0:8cdad1c73e8e	132	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	133
bfictorie	0:8cdad1c73e8e	134	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	135	/* Set if we require authentication only because we have a default route. */
bfictorie	0:8cdad1c73e8e	136	static bool default_auth;
bfictorie	0:8cdad1c73e8e	137
bfictorie	0:8cdad1c73e8e	138	/* Hook to enable a plugin to control the idle time limit */
bfictorie	0:8cdad1c73e8e	139	int (idle_time_hook) __P((struct ppp_idle )) = NULL;
bfictorie	0:8cdad1c73e8e	140
bfictorie	0:8cdad1c73e8e	141	/* Hook for a plugin to say whether we can possibly authenticate any peer */
bfictorie	0:8cdad1c73e8e	142	int (*pap_check_hook) __P((void)) = NULL;
bfictorie	0:8cdad1c73e8e	143
bfictorie	0:8cdad1c73e8e	144	/* Hook for a plugin to check the PAP user and password */
bfictorie	0:8cdad1c73e8e	145	int (pap_auth_hook) __P((char user, char passwd, char *msgp,
bfictorie	0:8cdad1c73e8e	146	struct wordlist **paddrs,
bfictorie	0:8cdad1c73e8e	147	struct wordlist **popts)) = NULL;
bfictorie	0:8cdad1c73e8e	148
bfictorie	0:8cdad1c73e8e	149	/* Hook for a plugin to know about the PAP user logout */
bfictorie	0:8cdad1c73e8e	150	void (*pap_logout_hook) __P((void)) = NULL;
bfictorie	0:8cdad1c73e8e	151
bfictorie	0:8cdad1c73e8e	152	/* Hook for a plugin to get the PAP password for authenticating us */
bfictorie	0:8cdad1c73e8e	153	int (pap_passwd_hook) __P((char user, char *passwd)) = NULL;
bfictorie	0:8cdad1c73e8e	154
bfictorie	0:8cdad1c73e8e	155	/*
bfictorie	0:8cdad1c73e8e	156	* This is used to ensure that we don't start an auth-up/down
bfictorie	0:8cdad1c73e8e	157	* script while one is already running.
bfictorie	0:8cdad1c73e8e	158	*/
bfictorie	0:8cdad1c73e8e	159	enum script_state {
bfictorie	0:8cdad1c73e8e	160	s_down,
bfictorie	0:8cdad1c73e8e	161	s_up
bfictorie	0:8cdad1c73e8e	162	};
bfictorie	0:8cdad1c73e8e	163
bfictorie	0:8cdad1c73e8e	164	static enum script_state auth_state = s_down;
bfictorie	0:8cdad1c73e8e	165	static enum script_state auth_script_state = s_down;
bfictorie	0:8cdad1c73e8e	166	static pid_t auth_script_pid = 0;
bfictorie	0:8cdad1c73e8e	167
bfictorie	0:8cdad1c73e8e	168	/*
bfictorie	0:8cdad1c73e8e	169	* Option variables.
bfictorie	0:8cdad1c73e8e	170	* lwip: some of these are present in the ppp_settings structure
bfictorie	0:8cdad1c73e8e	171	*/
bfictorie	0:8cdad1c73e8e	172	bool uselogin = 0; /* Use /etc/passwd for checking PAP */
bfictorie	0:8cdad1c73e8e	173	bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
bfictorie	0:8cdad1c73e8e	174	bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
bfictorie	0:8cdad1c73e8e	175	bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
bfictorie	0:8cdad1c73e8e	176	bool usehostname = 0; /* Use hostname for our_name */
bfictorie	0:8cdad1c73e8e	177	bool auth_required = 0; /* Always require authentication from peer */
bfictorie	0:8cdad1c73e8e	178	bool allow_any_ip = 0; /* Allow peer to use any IP address */
bfictorie	0:8cdad1c73e8e	179	bool explicit_remote = 0; /* User specified explicit remote name */
bfictorie	0:8cdad1c73e8e	180	char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
bfictorie	0:8cdad1c73e8e	181
bfictorie	0:8cdad1c73e8e	182	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	183
bfictorie	0:8cdad1c73e8e	184	/* Bits in auth_pending[] */
bfictorie	0:8cdad1c73e8e	185	#define PAP_WITHPEER 1
bfictorie	0:8cdad1c73e8e	186	#define PAP_PEER 2
bfictorie	0:8cdad1c73e8e	187	#define CHAP_WITHPEER 4
bfictorie	0:8cdad1c73e8e	188	#define CHAP_PEER 8
bfictorie	0:8cdad1c73e8e	189
bfictorie	0:8cdad1c73e8e	190	/* @todo, move this somewhere */
bfictorie	0:8cdad1c73e8e	191	/* Used for storing a sequence of words. Usually malloced. */
bfictorie	0:8cdad1c73e8e	192	struct wordlist {
bfictorie	0:8cdad1c73e8e	193	struct wordlist *next;
bfictorie	0:8cdad1c73e8e	194	char word[1];
bfictorie	0:8cdad1c73e8e	195	};
bfictorie	0:8cdad1c73e8e	196
bfictorie	0:8cdad1c73e8e	197
bfictorie	0:8cdad1c73e8e	198	extern char crypt (const char , const char *);
bfictorie	0:8cdad1c73e8e	199
bfictorie	0:8cdad1c73e8e	200	/* Prototypes for procedures local to this file. */
bfictorie	0:8cdad1c73e8e	201
bfictorie	0:8cdad1c73e8e	202	static void network_phase (int);
bfictorie	0:8cdad1c73e8e	203	static void check_idle (void *);
bfictorie	0:8cdad1c73e8e	204	static void connect_time_expired (void *);
bfictorie	0:8cdad1c73e8e	205	#if 0
bfictorie	0:8cdad1c73e8e	206	static int plogin (char , char , char *, int );
bfictorie	0:8cdad1c73e8e	207	#endif
bfictorie	0:8cdad1c73e8e	208	static void plogout (void);
bfictorie	0:8cdad1c73e8e	209	static int null_login (int);
bfictorie	0:8cdad1c73e8e	210	static int get_pap_passwd (int, char , char );
bfictorie	0:8cdad1c73e8e	211	static int have_pap_secret (void);
bfictorie	0:8cdad1c73e8e	212	static int have_chap_secret (char , char , u32_t);
bfictorie	0:8cdad1c73e8e	213	static int ip_addr_check (u32_t, struct wordlist *);
bfictorie	0:8cdad1c73e8e	214
bfictorie	0:8cdad1c73e8e	215	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	216	static int scan_authfile (FILE , char , char , char ,
bfictorie	0:8cdad1c73e8e	217	struct wordlist , struct wordlist ,
bfictorie	0:8cdad1c73e8e	218	char *);
bfictorie	0:8cdad1c73e8e	219	static void free_wordlist (struct wordlist *);
bfictorie	0:8cdad1c73e8e	220	static void auth_script (char *);
bfictorie	0:8cdad1c73e8e	221	static void auth_script_done (void *);
bfictorie	0:8cdad1c73e8e	222	static void set_allowed_addrs (int unit, struct wordlist *addrs);
bfictorie	0:8cdad1c73e8e	223	static int some_ip_ok (struct wordlist *);
bfictorie	0:8cdad1c73e8e	224	static int setupapfile (char **);
bfictorie	0:8cdad1c73e8e	225	static int privgroup (char **);
bfictorie	0:8cdad1c73e8e	226	static int set_noauth_addr (char **);
bfictorie	0:8cdad1c73e8e	227	static void check_access (FILE , char );
bfictorie	0:8cdad1c73e8e	228	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	229
bfictorie	0:8cdad1c73e8e	230	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	231	/*
bfictorie	0:8cdad1c73e8e	232	* Authentication-related options.
bfictorie	0:8cdad1c73e8e	233	*/
bfictorie	0:8cdad1c73e8e	234	option_t auth_options[] = {
bfictorie	0:8cdad1c73e8e	235	{ "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
bfictorie	0:8cdad1c73e8e	236	"Require PAP authentication from peer", 1, &auth_required },
bfictorie	0:8cdad1c73e8e	237	{ "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
bfictorie	0:8cdad1c73e8e	238	"Require PAP authentication from peer", 1, &auth_required },
bfictorie	0:8cdad1c73e8e	239	{ "refuse-pap", o_bool, &refuse_pap,
bfictorie	0:8cdad1c73e8e	240	"Don't agree to auth to peer with PAP", 1 },
bfictorie	0:8cdad1c73e8e	241	{ "-pap", o_bool, &refuse_pap,
bfictorie	0:8cdad1c73e8e	242	"Don't allow PAP authentication with peer", 1 },
bfictorie	0:8cdad1c73e8e	243	{ "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
bfictorie	0:8cdad1c73e8e	244	"Require CHAP authentication from peer", 1, &auth_required },
bfictorie	0:8cdad1c73e8e	245	{ "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
bfictorie	0:8cdad1c73e8e	246	"Require CHAP authentication from peer", 1, &auth_required },
bfictorie	0:8cdad1c73e8e	247	{ "refuse-chap", o_bool, &refuse_chap,
bfictorie	0:8cdad1c73e8e	248	"Don't agree to auth to peer with CHAP", 1 },
bfictorie	0:8cdad1c73e8e	249	{ "-chap", o_bool, &refuse_chap,
bfictorie	0:8cdad1c73e8e	250	"Don't allow CHAP authentication with peer", 1 },
bfictorie	0:8cdad1c73e8e	251	{ "name", o_string, our_name,
bfictorie	0:8cdad1c73e8e	252	"Set local name for authentication",
bfictorie	0:8cdad1c73e8e	253	OPT_PRIV\|OPT_STATIC, NULL, MAXNAMELEN },
bfictorie	0:8cdad1c73e8e	254	{ "user", o_string, user,
bfictorie	0:8cdad1c73e8e	255	"Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
bfictorie	0:8cdad1c73e8e	256	{ "usehostname", o_bool, &usehostname,
bfictorie	0:8cdad1c73e8e	257	"Must use hostname for authentication", 1 },
bfictorie	0:8cdad1c73e8e	258	{ "remotename", o_string, remote_name,
bfictorie	0:8cdad1c73e8e	259	"Set remote name for authentication", OPT_STATIC,
bfictorie	0:8cdad1c73e8e	260	&explicit_remote, MAXNAMELEN },
bfictorie	0:8cdad1c73e8e	261	{ "auth", o_bool, &auth_required,
bfictorie	0:8cdad1c73e8e	262	"Require authentication from peer", 1 },
bfictorie	0:8cdad1c73e8e	263	{ "noauth", o_bool, &auth_required,
bfictorie	0:8cdad1c73e8e	264	"Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
bfictorie	0:8cdad1c73e8e	265	{ "login", o_bool, &uselogin,
bfictorie	0:8cdad1c73e8e	266	"Use system password database for PAP", 1 },
bfictorie	0:8cdad1c73e8e	267	{ "papcrypt", o_bool, &cryptpap,
bfictorie	0:8cdad1c73e8e	268	"PAP passwords are encrypted", 1 },
bfictorie	0:8cdad1c73e8e	269	{ "+ua", o_special, (void *)setupapfile,
bfictorie	0:8cdad1c73e8e	270	"Get PAP user and password from file" },
bfictorie	0:8cdad1c73e8e	271	{ "password", o_string, passwd,
bfictorie	0:8cdad1c73e8e	272	"Password for authenticating us to the peer", OPT_STATIC,
bfictorie	0:8cdad1c73e8e	273	NULL, MAXSECRETLEN },
bfictorie	0:8cdad1c73e8e	274	{ "privgroup", o_special, (void *)privgroup,
bfictorie	0:8cdad1c73e8e	275	"Allow group members to use privileged options", OPT_PRIV },
bfictorie	0:8cdad1c73e8e	276	{ "allow-ip", o_special, (void *)set_noauth_addr,
bfictorie	0:8cdad1c73e8e	277	"Set IP address(es) which can be used without authentication",
bfictorie	0:8cdad1c73e8e	278	OPT_PRIV },
bfictorie	0:8cdad1c73e8e	279	{ NULL }
bfictorie	0:8cdad1c73e8e	280	};
bfictorie	0:8cdad1c73e8e	281	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	282	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	283	/*
bfictorie	0:8cdad1c73e8e	284	* setupapfile - specifies UPAP info for authenticating with peer.
bfictorie	0:8cdad1c73e8e	285	*/
bfictorie	0:8cdad1c73e8e	286	static int
bfictorie	0:8cdad1c73e8e	287	setupapfile(char **argv)
bfictorie	0:8cdad1c73e8e	288	{
bfictorie	0:8cdad1c73e8e	289	FILE * ufile;
bfictorie	0:8cdad1c73e8e	290	int l;
bfictorie	0:8cdad1c73e8e	291
bfictorie	0:8cdad1c73e8e	292	lcp_allowoptions[0].neg_upap = 1;
bfictorie	0:8cdad1c73e8e	293
bfictorie	0:8cdad1c73e8e	294	/* open user info file */
bfictorie	0:8cdad1c73e8e	295	seteuid(getuid());
bfictorie	0:8cdad1c73e8e	296	ufile = fopen(*argv, "r");
bfictorie	0:8cdad1c73e8e	297	seteuid(0);
bfictorie	0:8cdad1c73e8e	298	if (ufile == NULL) {
bfictorie	0:8cdad1c73e8e	299	option_error("unable to open user login data file %s", *argv);
bfictorie	0:8cdad1c73e8e	300	return 0;
bfictorie	0:8cdad1c73e8e	301	}
bfictorie	0:8cdad1c73e8e	302	check_access(ufile, *argv);
bfictorie	0:8cdad1c73e8e	303
bfictorie	0:8cdad1c73e8e	304	/* get username */
bfictorie	0:8cdad1c73e8e	305	if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
bfictorie	0:8cdad1c73e8e	306	\|\| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
bfictorie	0:8cdad1c73e8e	307	option_error("unable to read user login data file %s", *argv);
bfictorie	0:8cdad1c73e8e	308	return 0;
bfictorie	0:8cdad1c73e8e	309	}
bfictorie	0:8cdad1c73e8e	310	fclose(ufile);
bfictorie	0:8cdad1c73e8e	311
bfictorie	0:8cdad1c73e8e	312	/* get rid of newlines */
bfictorie	0:8cdad1c73e8e	313	l = strlen(user);
bfictorie	0:8cdad1c73e8e	314	if (l > 0 && user[l-1] == '\n')
bfictorie	0:8cdad1c73e8e	315	user[l-1] = 0;
bfictorie	0:8cdad1c73e8e	316	l = strlen(passwd);
bfictorie	0:8cdad1c73e8e	317	if (l > 0 && passwd[l-1] == '\n')
bfictorie	0:8cdad1c73e8e	318	passwd[l-1] = 0;
bfictorie	0:8cdad1c73e8e	319
bfictorie	0:8cdad1c73e8e	320	return (1);
bfictorie	0:8cdad1c73e8e	321	}
bfictorie	0:8cdad1c73e8e	322	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	323
bfictorie	0:8cdad1c73e8e	324	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	325	/*
bfictorie	0:8cdad1c73e8e	326	* privgroup - allow members of the group to have privileged access.
bfictorie	0:8cdad1c73e8e	327	*/
bfictorie	0:8cdad1c73e8e	328	static int
bfictorie	0:8cdad1c73e8e	329	privgroup(char **argv)
bfictorie	0:8cdad1c73e8e	330	{
bfictorie	0:8cdad1c73e8e	331	struct group *g;
bfictorie	0:8cdad1c73e8e	332	int i;
bfictorie	0:8cdad1c73e8e	333
bfictorie	0:8cdad1c73e8e	334	g = getgrnam(*argv);
bfictorie	0:8cdad1c73e8e	335	if (g == 0) {
bfictorie	0:8cdad1c73e8e	336	option_error("group %s is unknown", *argv);
bfictorie	0:8cdad1c73e8e	337	return 0;
bfictorie	0:8cdad1c73e8e	338	}
bfictorie	0:8cdad1c73e8e	339	for (i = 0; i < ngroups; ++i) {
bfictorie	0:8cdad1c73e8e	340	if (groups[i] == g->gr_gid) {
bfictorie	0:8cdad1c73e8e	341	privileged = 1;
bfictorie	0:8cdad1c73e8e	342	break;
bfictorie	0:8cdad1c73e8e	343	}
bfictorie	0:8cdad1c73e8e	344	}
bfictorie	0:8cdad1c73e8e	345	return 1;
bfictorie	0:8cdad1c73e8e	346	}
bfictorie	0:8cdad1c73e8e	347	#endif
bfictorie	0:8cdad1c73e8e	348
bfictorie	0:8cdad1c73e8e	349	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	350	/*
bfictorie	0:8cdad1c73e8e	351	* set_noauth_addr - set address(es) that can be used without authentication.
bfictorie	0:8cdad1c73e8e	352	* Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
bfictorie	0:8cdad1c73e8e	353	*/
bfictorie	0:8cdad1c73e8e	354	static int
bfictorie	0:8cdad1c73e8e	355	set_noauth_addr(char **argv)
bfictorie	0:8cdad1c73e8e	356	{
bfictorie	0:8cdad1c73e8e	357	char addr = argv;
bfictorie	0:8cdad1c73e8e	358	int l = strlen(addr);
bfictorie	0:8cdad1c73e8e	359	struct wordlist *wp;
bfictorie	0:8cdad1c73e8e	360
bfictorie	0:8cdad1c73e8e	361	wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
bfictorie	0:8cdad1c73e8e	362	if (wp == NULL)
bfictorie	0:8cdad1c73e8e	363	novm("allow-ip argument");
bfictorie	0:8cdad1c73e8e	364	wp->word = (char *) (wp + 1);
bfictorie	0:8cdad1c73e8e	365	wp->next = noauth_addrs;
bfictorie	0:8cdad1c73e8e	366	BCOPY(addr, wp->word, l);
bfictorie	0:8cdad1c73e8e	367	noauth_addrs = wp;
bfictorie	0:8cdad1c73e8e	368	return 1;
bfictorie	0:8cdad1c73e8e	369	}
bfictorie	0:8cdad1c73e8e	370	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	371
bfictorie	0:8cdad1c73e8e	372	/*
bfictorie	0:8cdad1c73e8e	373	* An Open on LCP has requested a change from Dead to Establish phase.
bfictorie	0:8cdad1c73e8e	374	* Do what's necessary to bring the physical layer up.
bfictorie	0:8cdad1c73e8e	375	*/
bfictorie	0:8cdad1c73e8e	376	void
bfictorie	0:8cdad1c73e8e	377	link_required(int unit)
bfictorie	0:8cdad1c73e8e	378	{
bfictorie	0:8cdad1c73e8e	379	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	380
bfictorie	0:8cdad1c73e8e	381	AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
bfictorie	0:8cdad1c73e8e	382	}
bfictorie	0:8cdad1c73e8e	383
bfictorie	0:8cdad1c73e8e	384	/*
bfictorie	0:8cdad1c73e8e	385	* LCP has terminated the link; go to the Dead phase and take the
bfictorie	0:8cdad1c73e8e	386	* physical layer down.
bfictorie	0:8cdad1c73e8e	387	*/
bfictorie	0:8cdad1c73e8e	388	void
bfictorie	0:8cdad1c73e8e	389	link_terminated(int unit)
bfictorie	0:8cdad1c73e8e	390	{
bfictorie	0:8cdad1c73e8e	391	AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
bfictorie	0:8cdad1c73e8e	392	if (lcp_phase[unit] == PHASE_DEAD) {
bfictorie	0:8cdad1c73e8e	393	return;
bfictorie	0:8cdad1c73e8e	394	}
bfictorie	0:8cdad1c73e8e	395	if (logged_in) {
bfictorie	0:8cdad1c73e8e	396	plogout();
bfictorie	0:8cdad1c73e8e	397	}
bfictorie	0:8cdad1c73e8e	398	lcp_phase[unit] = PHASE_DEAD;
bfictorie	0:8cdad1c73e8e	399	AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
bfictorie	0:8cdad1c73e8e	400	pppLinkTerminated(unit);
bfictorie	0:8cdad1c73e8e	401	}
bfictorie	0:8cdad1c73e8e	402
bfictorie	0:8cdad1c73e8e	403	/*
bfictorie	0:8cdad1c73e8e	404	* LCP has gone down; it will either die or try to re-establish.
bfictorie	0:8cdad1c73e8e	405	*/
bfictorie	0:8cdad1c73e8e	406	void
bfictorie	0:8cdad1c73e8e	407	link_down(int unit)
bfictorie	0:8cdad1c73e8e	408	{
bfictorie	0:8cdad1c73e8e	409	int i;
bfictorie	0:8cdad1c73e8e	410	struct protent *protp;
bfictorie	0:8cdad1c73e8e	411
bfictorie	0:8cdad1c73e8e	412	AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
bfictorie	0:8cdad1c73e8e	413
bfictorie	0:8cdad1c73e8e	414	if (did_authup) {
bfictorie	0:8cdad1c73e8e	415	/* XXX Do link down processing. */
bfictorie	0:8cdad1c73e8e	416	did_authup = 0;
bfictorie	0:8cdad1c73e8e	417	}
bfictorie	0:8cdad1c73e8e	418	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
bfictorie	0:8cdad1c73e8e	419	if (!protp->enabled_flag) {
bfictorie	0:8cdad1c73e8e	420	continue;
bfictorie	0:8cdad1c73e8e	421	}
bfictorie	0:8cdad1c73e8e	422	if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
bfictorie	0:8cdad1c73e8e	423	(*protp->lowerdown)(unit);
bfictorie	0:8cdad1c73e8e	424	}
bfictorie	0:8cdad1c73e8e	425	if (protp->protocol < 0xC000 && protp->close != NULL) {
bfictorie	0:8cdad1c73e8e	426	(*protp->close)(unit, "LCP down");
bfictorie	0:8cdad1c73e8e	427	}
bfictorie	0:8cdad1c73e8e	428	}
bfictorie	0:8cdad1c73e8e	429	num_np_open = 0; /* number of network protocols we have opened */
bfictorie	0:8cdad1c73e8e	430	num_np_up = 0; /* Number of network protocols which have come up */
bfictorie	0:8cdad1c73e8e	431
bfictorie	0:8cdad1c73e8e	432	if (lcp_phase[unit] != PHASE_DEAD) {
bfictorie	0:8cdad1c73e8e	433	lcp_phase[unit] = PHASE_TERMINATE;
bfictorie	0:8cdad1c73e8e	434	}
bfictorie	0:8cdad1c73e8e	435	pppLinkDown(unit);
bfictorie	0:8cdad1c73e8e	436	}
bfictorie	0:8cdad1c73e8e	437
bfictorie	0:8cdad1c73e8e	438	/*
bfictorie	0:8cdad1c73e8e	439	* The link is established.
bfictorie	0:8cdad1c73e8e	440	* Proceed to the Dead, Authenticate or Network phase as appropriate.
bfictorie	0:8cdad1c73e8e	441	*/
bfictorie	0:8cdad1c73e8e	442	void
bfictorie	0:8cdad1c73e8e	443	link_established(int unit)
bfictorie	0:8cdad1c73e8e	444	{
bfictorie	0:8cdad1c73e8e	445	int auth;
bfictorie	0:8cdad1c73e8e	446	int i;
bfictorie	0:8cdad1c73e8e	447	struct protent *protp;
bfictorie	0:8cdad1c73e8e	448	lcp_options *wo = &lcp_wantoptions[unit];
bfictorie	0:8cdad1c73e8e	449	lcp_options *go = &lcp_gotoptions[unit];
bfictorie	0:8cdad1c73e8e	450	#if PAP_SUPPORT \|\| CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	451	lcp_options *ho = &lcp_hisoptions[unit];
bfictorie	0:8cdad1c73e8e	452	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	453
bfictorie	0:8cdad1c73e8e	454	AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
bfictorie	0:8cdad1c73e8e	455	/*
bfictorie	0:8cdad1c73e8e	456	* Tell higher-level protocols that LCP is up.
bfictorie	0:8cdad1c73e8e	457	*/
bfictorie	0:8cdad1c73e8e	458	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
bfictorie	0:8cdad1c73e8e	459	if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
bfictorie	0:8cdad1c73e8e	460	(*protp->lowerup)(unit);
bfictorie	0:8cdad1c73e8e	461	}
bfictorie	0:8cdad1c73e8e	462	}
bfictorie	0:8cdad1c73e8e	463	if (ppp_settings.auth_required && !(go->neg_chap \|\| go->neg_upap)) {
bfictorie	0:8cdad1c73e8e	464	/*
bfictorie	0:8cdad1c73e8e	465	* We wanted the peer to authenticate itself, and it refused:
bfictorie	0:8cdad1c73e8e	466	* treat it as though it authenticated with PAP using a username
bfictorie	0:8cdad1c73e8e	467	* of "" and a password of "". If that's not OK, boot it out.
bfictorie	0:8cdad1c73e8e	468	*/
bfictorie	0:8cdad1c73e8e	469	if (!wo->neg_upap \|\| !null_login(unit)) {
bfictorie	0:8cdad1c73e8e	470	AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
bfictorie	0:8cdad1c73e8e	471	lcp_close(unit, "peer refused to authenticate");
bfictorie	0:8cdad1c73e8e	472	return;
bfictorie	0:8cdad1c73e8e	473	}
bfictorie	0:8cdad1c73e8e	474	}
bfictorie	0:8cdad1c73e8e	475
bfictorie	0:8cdad1c73e8e	476	lcp_phase[unit] = PHASE_AUTHENTICATE;
bfictorie	0:8cdad1c73e8e	477	auth = 0;
bfictorie	0:8cdad1c73e8e	478	#if CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	479	if (go->neg_chap) {
bfictorie	0:8cdad1c73e8e	480	ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
bfictorie	0:8cdad1c73e8e	481	auth \|= CHAP_PEER;
bfictorie	0:8cdad1c73e8e	482	}
bfictorie	0:8cdad1c73e8e	483	#endif /* CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	484	#if PAP_SUPPORT && CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	485	else
bfictorie	0:8cdad1c73e8e	486	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	487	#if PAP_SUPPORT
bfictorie	0:8cdad1c73e8e	488	if (go->neg_upap) {
bfictorie	0:8cdad1c73e8e	489	upap_authpeer(unit);
bfictorie	0:8cdad1c73e8e	490	auth \|= PAP_PEER;
bfictorie	0:8cdad1c73e8e	491	}
bfictorie	0:8cdad1c73e8e	492	#endif /* PAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	493	#if CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	494	if (ho->neg_chap) {
bfictorie	0:8cdad1c73e8e	495	ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
bfictorie	0:8cdad1c73e8e	496	auth \|= CHAP_WITHPEER;
bfictorie	0:8cdad1c73e8e	497	}
bfictorie	0:8cdad1c73e8e	498	#endif /* CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	499	#if PAP_SUPPORT && CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	500	else
bfictorie	0:8cdad1c73e8e	501	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	502	#if PAP_SUPPORT
bfictorie	0:8cdad1c73e8e	503	if (ho->neg_upap) {
bfictorie	0:8cdad1c73e8e	504	if (ppp_settings.passwd[0] == 0) {
bfictorie	0:8cdad1c73e8e	505	passwd_from_file = 1;
bfictorie	0:8cdad1c73e8e	506	if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
bfictorie	0:8cdad1c73e8e	507	AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
bfictorie	0:8cdad1c73e8e	508	}
bfictorie	0:8cdad1c73e8e	509	}
bfictorie	0:8cdad1c73e8e	510	upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
bfictorie	0:8cdad1c73e8e	511	auth \|= PAP_WITHPEER;
bfictorie	0:8cdad1c73e8e	512	}
bfictorie	0:8cdad1c73e8e	513	#endif /* PAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	514	auth_pending[unit] = auth;
bfictorie	0:8cdad1c73e8e	515
bfictorie	0:8cdad1c73e8e	516	if (!auth) {
bfictorie	0:8cdad1c73e8e	517	network_phase(unit);
bfictorie	0:8cdad1c73e8e	518	}
bfictorie	0:8cdad1c73e8e	519	}
bfictorie	0:8cdad1c73e8e	520
bfictorie	0:8cdad1c73e8e	521	/*
bfictorie	0:8cdad1c73e8e	522	* Proceed to the network phase.
bfictorie	0:8cdad1c73e8e	523	*/
bfictorie	0:8cdad1c73e8e	524	static void
bfictorie	0:8cdad1c73e8e	525	network_phase(int unit)
bfictorie	0:8cdad1c73e8e	526	{
bfictorie	0:8cdad1c73e8e	527	int i;
bfictorie	0:8cdad1c73e8e	528	struct protent *protp;
bfictorie	0:8cdad1c73e8e	529	lcp_options *go = &lcp_gotoptions[unit];
bfictorie	0:8cdad1c73e8e	530
bfictorie	0:8cdad1c73e8e	531	/*
bfictorie	0:8cdad1c73e8e	532	* If the peer had to authenticate, run the auth-up script now.
bfictorie	0:8cdad1c73e8e	533	*/
bfictorie	0:8cdad1c73e8e	534	if ((go->neg_chap \|\| go->neg_upap) && !did_authup) {
bfictorie	0:8cdad1c73e8e	535	/* XXX Do setup for peer authentication. */
bfictorie	0:8cdad1c73e8e	536	did_authup = 1;
bfictorie	0:8cdad1c73e8e	537	}
bfictorie	0:8cdad1c73e8e	538
bfictorie	0:8cdad1c73e8e	539	#if CBCP_SUPPORT
bfictorie	0:8cdad1c73e8e	540	/*
bfictorie	0:8cdad1c73e8e	541	* If we negotiated callback, do it now.
bfictorie	0:8cdad1c73e8e	542	*/
bfictorie	0:8cdad1c73e8e	543	if (go->neg_cbcp) {
bfictorie	0:8cdad1c73e8e	544	lcp_phase[unit] = PHASE_CALLBACK;
bfictorie	0:8cdad1c73e8e	545	(*cbcp_protent.open)(unit);
bfictorie	0:8cdad1c73e8e	546	return;
bfictorie	0:8cdad1c73e8e	547	}
bfictorie	0:8cdad1c73e8e	548	#endif /* CBCP_SUPPORT */
bfictorie	0:8cdad1c73e8e	549
bfictorie	0:8cdad1c73e8e	550	lcp_phase[unit] = PHASE_NETWORK;
bfictorie	0:8cdad1c73e8e	551	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
bfictorie	0:8cdad1c73e8e	552	if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
bfictorie	0:8cdad1c73e8e	553	(*protp->open)(unit);
bfictorie	0:8cdad1c73e8e	554	if (protp->protocol != PPP_CCP) {
bfictorie	0:8cdad1c73e8e	555	++num_np_open;
bfictorie	0:8cdad1c73e8e	556	}
bfictorie	0:8cdad1c73e8e	557	}
bfictorie	0:8cdad1c73e8e	558	}
bfictorie	0:8cdad1c73e8e	559
bfictorie	0:8cdad1c73e8e	560	if (num_np_open == 0) {
bfictorie	0:8cdad1c73e8e	561	/* nothing to do */
bfictorie	0:8cdad1c73e8e	562	lcp_close(0, "No network protocols running");
bfictorie	0:8cdad1c73e8e	563	}
bfictorie	0:8cdad1c73e8e	564	}
bfictorie	0:8cdad1c73e8e	565	/* @todo: add void start_networks(void) here (pppd 2.3.11) */
bfictorie	0:8cdad1c73e8e	566
bfictorie	0:8cdad1c73e8e	567	/*
bfictorie	0:8cdad1c73e8e	568	* The peer has failed to authenticate himself using `protocol'.
bfictorie	0:8cdad1c73e8e	569	*/
bfictorie	0:8cdad1c73e8e	570	void
bfictorie	0:8cdad1c73e8e	571	auth_peer_fail(int unit, u16_t protocol)
bfictorie	0:8cdad1c73e8e	572	{
bfictorie	0:8cdad1c73e8e	573	LWIP_UNUSED_ARG(protocol);
bfictorie	0:8cdad1c73e8e	574
bfictorie	0:8cdad1c73e8e	575	AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
bfictorie	0:8cdad1c73e8e	576	/*
bfictorie	0:8cdad1c73e8e	577	* Authentication failure: take the link down
bfictorie	0:8cdad1c73e8e	578	*/
bfictorie	0:8cdad1c73e8e	579	lcp_close(unit, "Authentication failed");
bfictorie	0:8cdad1c73e8e	580	}
bfictorie	0:8cdad1c73e8e	581
bfictorie	0:8cdad1c73e8e	582
bfictorie	0:8cdad1c73e8e	583	#if PAP_SUPPORT \|\| CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	584	/*
bfictorie	0:8cdad1c73e8e	585	* The peer has been successfully authenticated using `protocol'.
bfictorie	0:8cdad1c73e8e	586	*/
bfictorie	0:8cdad1c73e8e	587	void
bfictorie	0:8cdad1c73e8e	588	auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
bfictorie	0:8cdad1c73e8e	589	{
bfictorie	0:8cdad1c73e8e	590	int pbit;
bfictorie	0:8cdad1c73e8e	591
bfictorie	0:8cdad1c73e8e	592	AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
bfictorie	0:8cdad1c73e8e	593	switch (protocol) {
bfictorie	0:8cdad1c73e8e	594	case PPP_CHAP:
bfictorie	0:8cdad1c73e8e	595	pbit = CHAP_PEER;
bfictorie	0:8cdad1c73e8e	596	break;
bfictorie	0:8cdad1c73e8e	597	case PPP_PAP:
bfictorie	0:8cdad1c73e8e	598	pbit = PAP_PEER;
bfictorie	0:8cdad1c73e8e	599	break;
bfictorie	0:8cdad1c73e8e	600	default:
bfictorie	0:8cdad1c73e8e	601	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
bfictorie	0:8cdad1c73e8e	602	return;
bfictorie	0:8cdad1c73e8e	603	}
bfictorie	0:8cdad1c73e8e	604
bfictorie	0:8cdad1c73e8e	605	/*
bfictorie	0:8cdad1c73e8e	606	* Save the authenticated name of the peer for later.
bfictorie	0:8cdad1c73e8e	607	*/
bfictorie	0:8cdad1c73e8e	608	if (namelen > (int)sizeof(peer_authname) - 1) {
bfictorie	0:8cdad1c73e8e	609	namelen = sizeof(peer_authname) - 1;
bfictorie	0:8cdad1c73e8e	610	}
bfictorie	0:8cdad1c73e8e	611	BCOPY(name, peer_authname, namelen);
bfictorie	0:8cdad1c73e8e	612	peer_authname[namelen] = 0;
bfictorie	0:8cdad1c73e8e	613
bfictorie	0:8cdad1c73e8e	614	/*
bfictorie	0:8cdad1c73e8e	615	* If there is no more authentication still to be done,
bfictorie	0:8cdad1c73e8e	616	* proceed to the network (or callback) phase.
bfictorie	0:8cdad1c73e8e	617	*/
bfictorie	0:8cdad1c73e8e	618	if ((auth_pending[unit] &= ~pbit) == 0) {
bfictorie	0:8cdad1c73e8e	619	network_phase(unit);
bfictorie	0:8cdad1c73e8e	620	}
bfictorie	0:8cdad1c73e8e	621	}
bfictorie	0:8cdad1c73e8e	622
bfictorie	0:8cdad1c73e8e	623	/*
bfictorie	0:8cdad1c73e8e	624	* We have failed to authenticate ourselves to the peer using `protocol'.
bfictorie	0:8cdad1c73e8e	625	*/
bfictorie	0:8cdad1c73e8e	626	void
bfictorie	0:8cdad1c73e8e	627	auth_withpeer_fail(int unit, u16_t protocol)
bfictorie	0:8cdad1c73e8e	628	{
bfictorie	0:8cdad1c73e8e	629	int errCode = PPPERR_AUTHFAIL;
bfictorie	0:8cdad1c73e8e	630
bfictorie	0:8cdad1c73e8e	631	LWIP_UNUSED_ARG(protocol);
bfictorie	0:8cdad1c73e8e	632
bfictorie	0:8cdad1c73e8e	633	AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
bfictorie	0:8cdad1c73e8e	634	if (passwd_from_file) {
bfictorie	0:8cdad1c73e8e	635	BZERO(ppp_settings.passwd, MAXSECRETLEN);
bfictorie	0:8cdad1c73e8e	636	}
bfictorie	0:8cdad1c73e8e	637
bfictorie	0:8cdad1c73e8e	638	/*
bfictorie	0:8cdad1c73e8e	639	* We've failed to authenticate ourselves to our peer.
bfictorie	0:8cdad1c73e8e	640	* He'll probably take the link down, and there's not much
bfictorie	0:8cdad1c73e8e	641	* we can do except wait for that.
bfictorie	0:8cdad1c73e8e	642	*/
bfictorie	0:8cdad1c73e8e	643	pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
bfictorie	0:8cdad1c73e8e	644	lcp_close(unit, "Failed to authenticate ourselves to peer");
bfictorie	0:8cdad1c73e8e	645	}
bfictorie	0:8cdad1c73e8e	646
bfictorie	0:8cdad1c73e8e	647	/*
bfictorie	0:8cdad1c73e8e	648	* We have successfully authenticated ourselves with the peer using `protocol'.
bfictorie	0:8cdad1c73e8e	649	*/
bfictorie	0:8cdad1c73e8e	650	void
bfictorie	0:8cdad1c73e8e	651	auth_withpeer_success(int unit, u16_t protocol)
bfictorie	0:8cdad1c73e8e	652	{
bfictorie	0:8cdad1c73e8e	653	int pbit;
bfictorie	0:8cdad1c73e8e	654
bfictorie	0:8cdad1c73e8e	655	AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
bfictorie	0:8cdad1c73e8e	656	switch (protocol) {
bfictorie	0:8cdad1c73e8e	657	case PPP_CHAP:
bfictorie	0:8cdad1c73e8e	658	pbit = CHAP_WITHPEER;
bfictorie	0:8cdad1c73e8e	659	break;
bfictorie	0:8cdad1c73e8e	660	case PPP_PAP:
bfictorie	0:8cdad1c73e8e	661	if (passwd_from_file) {
bfictorie	0:8cdad1c73e8e	662	BZERO(ppp_settings.passwd, MAXSECRETLEN);
bfictorie	0:8cdad1c73e8e	663	}
bfictorie	0:8cdad1c73e8e	664	pbit = PAP_WITHPEER;
bfictorie	0:8cdad1c73e8e	665	break;
bfictorie	0:8cdad1c73e8e	666	default:
bfictorie	0:8cdad1c73e8e	667	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
bfictorie	0:8cdad1c73e8e	668	pbit = 0;
bfictorie	0:8cdad1c73e8e	669	}
bfictorie	0:8cdad1c73e8e	670
bfictorie	0:8cdad1c73e8e	671	/*
bfictorie	0:8cdad1c73e8e	672	* If there is no more authentication still being done,
bfictorie	0:8cdad1c73e8e	673	* proceed to the network (or callback) phase.
bfictorie	0:8cdad1c73e8e	674	*/
bfictorie	0:8cdad1c73e8e	675	if ((auth_pending[unit] &= ~pbit) == 0) {
bfictorie	0:8cdad1c73e8e	676	network_phase(unit);
bfictorie	0:8cdad1c73e8e	677	}
bfictorie	0:8cdad1c73e8e	678	}
bfictorie	0:8cdad1c73e8e	679	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	680
bfictorie	0:8cdad1c73e8e	681
bfictorie	0:8cdad1c73e8e	682	/*
bfictorie	0:8cdad1c73e8e	683	* np_up - a network protocol has come up.
bfictorie	0:8cdad1c73e8e	684	*/
bfictorie	0:8cdad1c73e8e	685	void
bfictorie	0:8cdad1c73e8e	686	np_up(int unit, u16_t proto)
bfictorie	0:8cdad1c73e8e	687	{
bfictorie	0:8cdad1c73e8e	688	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	689	LWIP_UNUSED_ARG(proto);
bfictorie	0:8cdad1c73e8e	690
bfictorie	0:8cdad1c73e8e	691	AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
bfictorie	0:8cdad1c73e8e	692	if (num_np_up == 0) {
bfictorie	0:8cdad1c73e8e	693	AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
bfictorie	0:8cdad1c73e8e	694	/*
bfictorie	0:8cdad1c73e8e	695	* At this point we consider that the link has come up successfully.
bfictorie	0:8cdad1c73e8e	696	*/
bfictorie	0:8cdad1c73e8e	697	if (ppp_settings.idle_time_limit > 0) {
bfictorie	0:8cdad1c73e8e	698	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
bfictorie	0:8cdad1c73e8e	699	}
bfictorie	0:8cdad1c73e8e	700
bfictorie	0:8cdad1c73e8e	701	/*
bfictorie	0:8cdad1c73e8e	702	* Set a timeout to close the connection once the maximum
bfictorie	0:8cdad1c73e8e	703	* connect time has expired.
bfictorie	0:8cdad1c73e8e	704	*/
bfictorie	0:8cdad1c73e8e	705	if (ppp_settings.maxconnect > 0) {
bfictorie	0:8cdad1c73e8e	706	TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
bfictorie	0:8cdad1c73e8e	707	}
bfictorie	0:8cdad1c73e8e	708	}
bfictorie	0:8cdad1c73e8e	709	++num_np_up;
bfictorie	0:8cdad1c73e8e	710	}
bfictorie	0:8cdad1c73e8e	711
bfictorie	0:8cdad1c73e8e	712	/*
bfictorie	0:8cdad1c73e8e	713	* np_down - a network protocol has gone down.
bfictorie	0:8cdad1c73e8e	714	*/
bfictorie	0:8cdad1c73e8e	715	void
bfictorie	0:8cdad1c73e8e	716	np_down(int unit, u16_t proto)
bfictorie	0:8cdad1c73e8e	717	{
bfictorie	0:8cdad1c73e8e	718	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	719	LWIP_UNUSED_ARG(proto);
bfictorie	0:8cdad1c73e8e	720
bfictorie	0:8cdad1c73e8e	721	AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
bfictorie	0:8cdad1c73e8e	722	if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
bfictorie	0:8cdad1c73e8e	723	UNTIMEOUT(check_idle, NULL);
bfictorie	0:8cdad1c73e8e	724	}
bfictorie	0:8cdad1c73e8e	725	}
bfictorie	0:8cdad1c73e8e	726
bfictorie	0:8cdad1c73e8e	727	/*
bfictorie	0:8cdad1c73e8e	728	* np_finished - a network protocol has finished using the link.
bfictorie	0:8cdad1c73e8e	729	*/
bfictorie	0:8cdad1c73e8e	730	void
bfictorie	0:8cdad1c73e8e	731	np_finished(int unit, u16_t proto)
bfictorie	0:8cdad1c73e8e	732	{
bfictorie	0:8cdad1c73e8e	733	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	734	LWIP_UNUSED_ARG(proto);
bfictorie	0:8cdad1c73e8e	735
bfictorie	0:8cdad1c73e8e	736	AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
bfictorie	0:8cdad1c73e8e	737	if (--num_np_open <= 0) {
bfictorie	0:8cdad1c73e8e	738	/* no further use for the link: shut up shop. */
bfictorie	0:8cdad1c73e8e	739	lcp_close(0, "No network protocols running");
bfictorie	0:8cdad1c73e8e	740	}
bfictorie	0:8cdad1c73e8e	741	}
bfictorie	0:8cdad1c73e8e	742
bfictorie	0:8cdad1c73e8e	743	/*
bfictorie	0:8cdad1c73e8e	744	* check_idle - check whether the link has been idle for long
bfictorie	0:8cdad1c73e8e	745	* enough that we can shut it down.
bfictorie	0:8cdad1c73e8e	746	*/
bfictorie	0:8cdad1c73e8e	747	static void
bfictorie	0:8cdad1c73e8e	748	check_idle(void *arg)
bfictorie	0:8cdad1c73e8e	749	{
bfictorie	0:8cdad1c73e8e	750	struct ppp_idle idle;
bfictorie	0:8cdad1c73e8e	751	u_short itime;
bfictorie	0:8cdad1c73e8e	752
bfictorie	0:8cdad1c73e8e	753	LWIP_UNUSED_ARG(arg);
bfictorie	0:8cdad1c73e8e	754	if (!get_idle_time(0, &idle)) {
bfictorie	0:8cdad1c73e8e	755	return;
bfictorie	0:8cdad1c73e8e	756	}
bfictorie	0:8cdad1c73e8e	757	itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
bfictorie	0:8cdad1c73e8e	758	if (itime >= ppp_settings.idle_time_limit) {
bfictorie	0:8cdad1c73e8e	759	/* link is idle: shut it down. */
bfictorie	0:8cdad1c73e8e	760	AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
bfictorie	0:8cdad1c73e8e	761	lcp_close(0, "Link inactive");
bfictorie	0:8cdad1c73e8e	762	} else {
bfictorie	0:8cdad1c73e8e	763	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
bfictorie	0:8cdad1c73e8e	764	}
bfictorie	0:8cdad1c73e8e	765	}
bfictorie	0:8cdad1c73e8e	766
bfictorie	0:8cdad1c73e8e	767	/*
bfictorie	0:8cdad1c73e8e	768	* connect_time_expired - log a message and close the connection.
bfictorie	0:8cdad1c73e8e	769	*/
bfictorie	0:8cdad1c73e8e	770	static void
bfictorie	0:8cdad1c73e8e	771	connect_time_expired(void *arg)
bfictorie	0:8cdad1c73e8e	772	{
bfictorie	0:8cdad1c73e8e	773	LWIP_UNUSED_ARG(arg);
bfictorie	0:8cdad1c73e8e	774
bfictorie	0:8cdad1c73e8e	775	AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
bfictorie	0:8cdad1c73e8e	776	lcp_close(0, "Connect time expired"); /* Close connection */
bfictorie	0:8cdad1c73e8e	777	}
bfictorie	0:8cdad1c73e8e	778
bfictorie	0:8cdad1c73e8e	779	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	780	/*
bfictorie	0:8cdad1c73e8e	781	* auth_check_options - called to check authentication options.
bfictorie	0:8cdad1c73e8e	782	*/
bfictorie	0:8cdad1c73e8e	783	void
bfictorie	0:8cdad1c73e8e	784	auth_check_options(void)
bfictorie	0:8cdad1c73e8e	785	{
bfictorie	0:8cdad1c73e8e	786	lcp_options *wo = &lcp_wantoptions[0];
bfictorie	0:8cdad1c73e8e	787	int can_auth;
bfictorie	0:8cdad1c73e8e	788	ipcp_options *ipwo = &ipcp_wantoptions[0];
bfictorie	0:8cdad1c73e8e	789	u32_t remote;
bfictorie	0:8cdad1c73e8e	790
bfictorie	0:8cdad1c73e8e	791	/* Default our_name to hostname, and user to our_name */
bfictorie	0:8cdad1c73e8e	792	if (ppp_settings.our_name[0] == 0 \|\| ppp_settings.usehostname) {
bfictorie	0:8cdad1c73e8e	793	strcpy(ppp_settings.our_name, ppp_settings.hostname);
bfictorie	0:8cdad1c73e8e	794	}
bfictorie	0:8cdad1c73e8e	795
bfictorie	0:8cdad1c73e8e	796	if (ppp_settings.user[0] == 0) {
bfictorie	0:8cdad1c73e8e	797	strcpy(ppp_settings.user, ppp_settings.our_name);
bfictorie	0:8cdad1c73e8e	798	}
bfictorie	0:8cdad1c73e8e	799
bfictorie	0:8cdad1c73e8e	800	/* If authentication is required, ask peer for CHAP or PAP. */
bfictorie	0:8cdad1c73e8e	801	if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
bfictorie	0:8cdad1c73e8e	802	wo->neg_chap = 1;
bfictorie	0:8cdad1c73e8e	803	wo->neg_upap = 1;
bfictorie	0:8cdad1c73e8e	804	}
bfictorie	0:8cdad1c73e8e	805
bfictorie	0:8cdad1c73e8e	806	/*
bfictorie	0:8cdad1c73e8e	807	* Check whether we have appropriate secrets to use
bfictorie	0:8cdad1c73e8e	808	* to authenticate the peer.
bfictorie	0:8cdad1c73e8e	809	*/
bfictorie	0:8cdad1c73e8e	810	can_auth = wo->neg_upap && have_pap_secret();
bfictorie	0:8cdad1c73e8e	811	if (!can_auth && wo->neg_chap) {
bfictorie	0:8cdad1c73e8e	812	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
bfictorie	0:8cdad1c73e8e	813	can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
bfictorie	0:8cdad1c73e8e	814	}
bfictorie	0:8cdad1c73e8e	815
bfictorie	0:8cdad1c73e8e	816	if (ppp_settings.auth_required && !can_auth) {
bfictorie	0:8cdad1c73e8e	817	ppp_panic("No auth secret");
bfictorie	0:8cdad1c73e8e	818	}
bfictorie	0:8cdad1c73e8e	819	}
bfictorie	0:8cdad1c73e8e	820	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	821
bfictorie	0:8cdad1c73e8e	822	/*
bfictorie	0:8cdad1c73e8e	823	* auth_reset - called when LCP is starting negotiations to recheck
bfictorie	0:8cdad1c73e8e	824	* authentication options, i.e. whether we have appropriate secrets
bfictorie	0:8cdad1c73e8e	825	* to use for authenticating ourselves and/or the peer.
bfictorie	0:8cdad1c73e8e	826	*/
bfictorie	0:8cdad1c73e8e	827	void
bfictorie	0:8cdad1c73e8e	828	auth_reset(int unit)
bfictorie	0:8cdad1c73e8e	829	{
bfictorie	0:8cdad1c73e8e	830	lcp_options *go = &lcp_gotoptions[unit];
bfictorie	0:8cdad1c73e8e	831	lcp_options *ao = &lcp_allowoptions[0];
bfictorie	0:8cdad1c73e8e	832	ipcp_options *ipwo = &ipcp_wantoptions[0];
bfictorie	0:8cdad1c73e8e	833	u32_t remote;
bfictorie	0:8cdad1c73e8e	834
bfictorie	0:8cdad1c73e8e	835	AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
bfictorie	0:8cdad1c73e8e	836	ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 \|\| get_pap_passwd(unit, NULL, NULL));
bfictorie	0:8cdad1c73e8e	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)/;
bfictorie	0:8cdad1c73e8e	838
bfictorie	0:8cdad1c73e8e	839	if (go->neg_upap && !have_pap_secret()) {
bfictorie	0:8cdad1c73e8e	840	go->neg_upap = 0;
bfictorie	0:8cdad1c73e8e	841	}
bfictorie	0:8cdad1c73e8e	842	if (go->neg_chap) {
bfictorie	0:8cdad1c73e8e	843	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
bfictorie	0:8cdad1c73e8e	844	if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
bfictorie	0:8cdad1c73e8e	845	go->neg_chap = 0;
bfictorie	0:8cdad1c73e8e	846	}
bfictorie	0:8cdad1c73e8e	847	}
bfictorie	0:8cdad1c73e8e	848	}
bfictorie	0:8cdad1c73e8e	849
bfictorie	0:8cdad1c73e8e	850	#if PAP_SUPPORT
bfictorie	0:8cdad1c73e8e	851	/*
bfictorie	0:8cdad1c73e8e	852	* check_passwd - Check the user name and passwd against the PAP secrets
bfictorie	0:8cdad1c73e8e	853	* file. If requested, also check against the system password database,
bfictorie	0:8cdad1c73e8e	854	* and login the user if OK.
bfictorie	0:8cdad1c73e8e	855	*
bfictorie	0:8cdad1c73e8e	856	* returns:
bfictorie	0:8cdad1c73e8e	857	* UPAP_AUTHNAK: Authentication failed.
bfictorie	0:8cdad1c73e8e	858	* UPAP_AUTHACK: Authentication succeeded.
bfictorie	0:8cdad1c73e8e	859	* In either case, msg points to an appropriate message.
bfictorie	0:8cdad1c73e8e	860	*/
bfictorie	0:8cdad1c73e8e	861	u_char
bfictorie	0:8cdad1c73e8e	862	check_passwd( int unit, char auser, int userlen, char apasswd, int passwdlen, char *msg, int msglen)
bfictorie	0:8cdad1c73e8e	863	{
bfictorie	0:8cdad1c73e8e	864	#if 1 /* XXX Assume all entries OK. */
bfictorie	0:8cdad1c73e8e	865	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	866	LWIP_UNUSED_ARG(auser);
bfictorie	0:8cdad1c73e8e	867	LWIP_UNUSED_ARG(userlen);
bfictorie	0:8cdad1c73e8e	868	LWIP_UNUSED_ARG(apasswd);
bfictorie	0:8cdad1c73e8e	869	LWIP_UNUSED_ARG(passwdlen);
bfictorie	0:8cdad1c73e8e	870	LWIP_UNUSED_ARG(msglen);
bfictorie	0:8cdad1c73e8e	871	msg = (char ) 0;
bfictorie	0:8cdad1c73e8e	872	return UPAP_AUTHACK; /* XXX Assume all entries OK. */
bfictorie	0:8cdad1c73e8e	873	#else
bfictorie	0:8cdad1c73e8e	874	u_char ret = 0;
bfictorie	0:8cdad1c73e8e	875	struct wordlist *addrs = NULL;
bfictorie	0:8cdad1c73e8e	876	char passwd[256], user[256];
bfictorie	0:8cdad1c73e8e	877	char secret[MAXWORDLEN];
bfictorie	0:8cdad1c73e8e	878	static u_short attempts = 0;
bfictorie	0:8cdad1c73e8e	879
bfictorie	0:8cdad1c73e8e	880	/*
bfictorie	0:8cdad1c73e8e	881	* Make copies of apasswd and auser, then null-terminate them.
bfictorie	0:8cdad1c73e8e	882	*/
bfictorie	0:8cdad1c73e8e	883	BCOPY(apasswd, passwd, passwdlen);
bfictorie	0:8cdad1c73e8e	884	passwd[passwdlen] = '\0';
bfictorie	0:8cdad1c73e8e	885	BCOPY(auser, user, userlen);
bfictorie	0:8cdad1c73e8e	886	user[userlen] = '\0';
bfictorie	0:8cdad1c73e8e	887	msg = (char ) 0;
bfictorie	0:8cdad1c73e8e	888
bfictorie	0:8cdad1c73e8e	889	/* XXX Validate user name and password. */
bfictorie	0:8cdad1c73e8e	890	ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
bfictorie	0:8cdad1c73e8e	891
bfictorie	0:8cdad1c73e8e	892	if (ret == UPAP_AUTHNAK) {
bfictorie	0:8cdad1c73e8e	893	if (msg == (char ) 0) {
bfictorie	0:8cdad1c73e8e	894	*msg = "Login incorrect";
bfictorie	0:8cdad1c73e8e	895	}
bfictorie	0:8cdad1c73e8e	896	msglen = strlen(msg);
bfictorie	0:8cdad1c73e8e	897	/*
bfictorie	0:8cdad1c73e8e	898	* Frustrate passwd stealer programs.
bfictorie	0:8cdad1c73e8e	899	* Allow 10 tries, but start backing off after 3 (stolen from login).
bfictorie	0:8cdad1c73e8e	900	* On 10'th, drop the connection.
bfictorie	0:8cdad1c73e8e	901	*/
bfictorie	0:8cdad1c73e8e	902	if (attempts++ >= 10) {
bfictorie	0:8cdad1c73e8e	903	AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
bfictorie	0:8cdad1c73e8e	904	/ppp_panic("Excess Bad Logins");/
bfictorie	0:8cdad1c73e8e	905	}
bfictorie	0:8cdad1c73e8e	906	if (attempts > 3) {
bfictorie	0:8cdad1c73e8e	907	/* @todo: this was sleep(), i.e. seconds, not milliseconds
bfictorie	0:8cdad1c73e8e	908	* I don't think we really need this in lwIP - we would block tcpip_thread!
bfictorie	0:8cdad1c73e8e	909	*/
bfictorie	0:8cdad1c73e8e	910	/sys_msleep((attempts - 3) 5);*/
bfictorie	0:8cdad1c73e8e	911	}
bfictorie	0:8cdad1c73e8e	912	if (addrs != NULL) {
bfictorie	0:8cdad1c73e8e	913	free_wordlist(addrs);
bfictorie	0:8cdad1c73e8e	914	}
bfictorie	0:8cdad1c73e8e	915	} else {
bfictorie	0:8cdad1c73e8e	916	attempts = 0; /* Reset count */
bfictorie	0:8cdad1c73e8e	917	if (msg == (char ) 0) {
bfictorie	0:8cdad1c73e8e	918	*msg = "Login ok";
bfictorie	0:8cdad1c73e8e	919	}
bfictorie	0:8cdad1c73e8e	920	msglen = strlen(msg);
bfictorie	0:8cdad1c73e8e	921	set_allowed_addrs(unit, addrs);
bfictorie	0:8cdad1c73e8e	922	}
bfictorie	0:8cdad1c73e8e	923
bfictorie	0:8cdad1c73e8e	924	BZERO(passwd, sizeof(passwd));
bfictorie	0:8cdad1c73e8e	925	BZERO(secret, sizeof(secret));
bfictorie	0:8cdad1c73e8e	926
bfictorie	0:8cdad1c73e8e	927	return ret;
bfictorie	0:8cdad1c73e8e	928	#endif
bfictorie	0:8cdad1c73e8e	929	}
bfictorie	0:8cdad1c73e8e	930	#endif /* PAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	931
bfictorie	0:8cdad1c73e8e	932	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	933	/*
bfictorie	0:8cdad1c73e8e	934	* This function is needed for PAM.
bfictorie	0:8cdad1c73e8e	935	*/
bfictorie	0:8cdad1c73e8e	936
bfictorie	0:8cdad1c73e8e	937	#ifdef USE_PAM
bfictorie	0:8cdad1c73e8e	938
bfictorie	0:8cdad1c73e8e	939	/* lwip does not support PAM*/
bfictorie	0:8cdad1c73e8e	940
bfictorie	0:8cdad1c73e8e	941	#endif /* USE_PAM */
bfictorie	0:8cdad1c73e8e	942
bfictorie	0:8cdad1c73e8e	943	#endif /* UNUSED */
bfictorie	0:8cdad1c73e8e	944
bfictorie	0:8cdad1c73e8e	945
bfictorie	0:8cdad1c73e8e	946	#if 0 /* UNUSED */
bfictorie	0:8cdad1c73e8e	947	/*
bfictorie	0:8cdad1c73e8e	948	* plogin - Check the user name and password against the system
bfictorie	0:8cdad1c73e8e	949	* password database, and login the user if OK.
bfictorie	0:8cdad1c73e8e	950	*
bfictorie	0:8cdad1c73e8e	951	* returns:
bfictorie	0:8cdad1c73e8e	952	* UPAP_AUTHNAK: Login failed.
bfictorie	0:8cdad1c73e8e	953	* UPAP_AUTHACK: Login succeeded.
bfictorie	0:8cdad1c73e8e	954	* In either case, msg points to an appropriate message.
bfictorie	0:8cdad1c73e8e	955	*/
bfictorie	0:8cdad1c73e8e	956	static int
bfictorie	0:8cdad1c73e8e	957	plogin(char user, char passwd, char *msg, int msglen)
bfictorie	0:8cdad1c73e8e	958	{
bfictorie	0:8cdad1c73e8e	959
bfictorie	0:8cdad1c73e8e	960	LWIP_UNUSED_ARG(user);
bfictorie	0:8cdad1c73e8e	961	LWIP_UNUSED_ARG(passwd);
bfictorie	0:8cdad1c73e8e	962	LWIP_UNUSED_ARG(msg);
bfictorie	0:8cdad1c73e8e	963	LWIP_UNUSED_ARG(msglen);
bfictorie	0:8cdad1c73e8e	964
bfictorie	0:8cdad1c73e8e	965
bfictorie	0:8cdad1c73e8e	966	/* The new lines are here align the file when
bfictorie	0:8cdad1c73e8e	967	* compared against the pppd 2.3.11 code */
bfictorie	0:8cdad1c73e8e	968
bfictorie	0:8cdad1c73e8e	969
bfictorie	0:8cdad1c73e8e	970
bfictorie	0:8cdad1c73e8e	971
bfictorie	0:8cdad1c73e8e	972
bfictorie	0:8cdad1c73e8e	973
bfictorie	0:8cdad1c73e8e	974
bfictorie	0:8cdad1c73e8e	975
bfictorie	0:8cdad1c73e8e	976
bfictorie	0:8cdad1c73e8e	977
bfictorie	0:8cdad1c73e8e	978
bfictorie	0:8cdad1c73e8e	979
bfictorie	0:8cdad1c73e8e	980
bfictorie	0:8cdad1c73e8e	981
bfictorie	0:8cdad1c73e8e	982
bfictorie	0:8cdad1c73e8e	983
bfictorie	0:8cdad1c73e8e	984	/* XXX Fail until we decide that we want to support logins. */
bfictorie	0:8cdad1c73e8e	985	return (UPAP_AUTHNAK);
bfictorie	0:8cdad1c73e8e	986	}
bfictorie	0:8cdad1c73e8e	987	#endif
bfictorie	0:8cdad1c73e8e	988
bfictorie	0:8cdad1c73e8e	989
bfictorie	0:8cdad1c73e8e	990
bfictorie	0:8cdad1c73e8e	991	/*
bfictorie	0:8cdad1c73e8e	992	* plogout - Logout the user.
bfictorie	0:8cdad1c73e8e	993	*/
bfictorie	0:8cdad1c73e8e	994	static void
bfictorie	0:8cdad1c73e8e	995	plogout(void)
bfictorie	0:8cdad1c73e8e	996	{
bfictorie	0:8cdad1c73e8e	997	logged_in = 0;
bfictorie	0:8cdad1c73e8e	998	}
bfictorie	0:8cdad1c73e8e	999
bfictorie	0:8cdad1c73e8e	1000	/*
bfictorie	0:8cdad1c73e8e	1001	* null_login - Check if a username of "" and a password of "" are
bfictorie	0:8cdad1c73e8e	1002	* acceptable, and iff so, set the list of acceptable IP addresses
bfictorie	0:8cdad1c73e8e	1003	* and return 1.
bfictorie	0:8cdad1c73e8e	1004	*/
bfictorie	0:8cdad1c73e8e	1005	static int
bfictorie	0:8cdad1c73e8e	1006	null_login(int unit)
bfictorie	0:8cdad1c73e8e	1007	{
bfictorie	0:8cdad1c73e8e	1008	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	1009	/* XXX Fail until we decide that we want to support logins. */
bfictorie	0:8cdad1c73e8e	1010	return 0;
bfictorie	0:8cdad1c73e8e	1011	}
bfictorie	0:8cdad1c73e8e	1012
bfictorie	0:8cdad1c73e8e	1013
bfictorie	0:8cdad1c73e8e	1014	/*
bfictorie	0:8cdad1c73e8e	1015	* get_pap_passwd - get a password for authenticating ourselves with
bfictorie	0:8cdad1c73e8e	1016	* our peer using PAP. Returns 1 on success, 0 if no suitable password
bfictorie	0:8cdad1c73e8e	1017	* could be found.
bfictorie	0:8cdad1c73e8e	1018	*/
bfictorie	0:8cdad1c73e8e	1019	static int
bfictorie	0:8cdad1c73e8e	1020	get_pap_passwd(int unit, char user, char passwd)
bfictorie	0:8cdad1c73e8e	1021	{
bfictorie	0:8cdad1c73e8e	1022	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	1023	/* normally we would reject PAP if no password is provided,
bfictorie	0:8cdad1c73e8e	1024	but this causes problems with some providers (like CHT in Taiwan)
bfictorie	0:8cdad1c73e8e	1025	who incorrectly request PAP and expect a bogus/empty password, so
bfictorie	0:8cdad1c73e8e	1026	always provide a default user/passwd of "none"/"none"
bfictorie	0:8cdad1c73e8e	1027
bfictorie	0:8cdad1c73e8e	1028	@todo: This should be configured by the user, instead of being hardcoded here!
bfictorie	0:8cdad1c73e8e	1029	*/
bfictorie	0:8cdad1c73e8e	1030	if(user) {
bfictorie	0:8cdad1c73e8e	1031	strcpy(user, "none");
bfictorie	0:8cdad1c73e8e	1032	}
bfictorie	0:8cdad1c73e8e	1033	if(passwd) {
bfictorie	0:8cdad1c73e8e	1034	strcpy(passwd, "none");
bfictorie	0:8cdad1c73e8e	1035	}
bfictorie	0:8cdad1c73e8e	1036	return 1;
bfictorie	0:8cdad1c73e8e	1037	}
bfictorie	0:8cdad1c73e8e	1038
bfictorie	0:8cdad1c73e8e	1039	/*
bfictorie	0:8cdad1c73e8e	1040	* have_pap_secret - check whether we have a PAP file with any
bfictorie	0:8cdad1c73e8e	1041	* secrets that we could possibly use for authenticating the peer.
bfictorie	0:8cdad1c73e8e	1042	*/
bfictorie	0:8cdad1c73e8e	1043	static int
bfictorie	0:8cdad1c73e8e	1044	have_pap_secret(void)
bfictorie	0:8cdad1c73e8e	1045	{
bfictorie	0:8cdad1c73e8e	1046	/* XXX Fail until we set up our passwords. */
bfictorie	0:8cdad1c73e8e	1047	return 0;
bfictorie	0:8cdad1c73e8e	1048	}
bfictorie	0:8cdad1c73e8e	1049
bfictorie	0:8cdad1c73e8e	1050	/*
bfictorie	0:8cdad1c73e8e	1051	* have_chap_secret - check whether we have a CHAP file with a
bfictorie	0:8cdad1c73e8e	1052	* secret that we could possibly use for authenticating `client'
bfictorie	0:8cdad1c73e8e	1053	* on `server'. Either can be the null string, meaning we don't
bfictorie	0:8cdad1c73e8e	1054	* know the identity yet.
bfictorie	0:8cdad1c73e8e	1055	*/
bfictorie	0:8cdad1c73e8e	1056	static int
bfictorie	0:8cdad1c73e8e	1057	have_chap_secret(char client, char server, u32_t remote)
bfictorie	0:8cdad1c73e8e	1058	{
bfictorie	0:8cdad1c73e8e	1059	LWIP_UNUSED_ARG(client);
bfictorie	0:8cdad1c73e8e	1060	LWIP_UNUSED_ARG(server);
bfictorie	0:8cdad1c73e8e	1061	LWIP_UNUSED_ARG(remote);
bfictorie	0:8cdad1c73e8e	1062
bfictorie	0:8cdad1c73e8e	1063	/* XXX Fail until we set up our passwords. */
bfictorie	0:8cdad1c73e8e	1064	return 0;
bfictorie	0:8cdad1c73e8e	1065	}
bfictorie	0:8cdad1c73e8e	1066	#if CHAP_SUPPORT
bfictorie	0:8cdad1c73e8e	1067
bfictorie	0:8cdad1c73e8e	1068	/*
bfictorie	0:8cdad1c73e8e	1069	* get_secret - open the CHAP secret file and return the secret
bfictorie	0:8cdad1c73e8e	1070	* for authenticating the given client on the given server.
bfictorie	0:8cdad1c73e8e	1071	* (We could be either client or server).
bfictorie	0:8cdad1c73e8e	1072	*/
bfictorie	0:8cdad1c73e8e	1073	int
bfictorie	0:8cdad1c73e8e	1074	get_secret(int unit, char client, char server, char secret, int secret_len, int save_addrs)
bfictorie	0:8cdad1c73e8e	1075	{
bfictorie	0:8cdad1c73e8e	1076	#if 1
bfictorie	0:8cdad1c73e8e	1077	int len;
bfictorie	0:8cdad1c73e8e	1078	struct wordlist *addrs;
bfictorie	0:8cdad1c73e8e	1079
bfictorie	0:8cdad1c73e8e	1080	LWIP_UNUSED_ARG(unit);
bfictorie	0:8cdad1c73e8e	1081	LWIP_UNUSED_ARG(server);
bfictorie	0:8cdad1c73e8e	1082	LWIP_UNUSED_ARG(save_addrs);
bfictorie	0:8cdad1c73e8e	1083
bfictorie	0:8cdad1c73e8e	1084	addrs = NULL;
bfictorie	0:8cdad1c73e8e	1085
bfictorie	0:8cdad1c73e8e	1086	if(!client \|\| !client[0] \|\| strcmp(client, ppp_settings.user)) {
bfictorie	0:8cdad1c73e8e	1087	return 0;
bfictorie	0:8cdad1c73e8e	1088	}
bfictorie	0:8cdad1c73e8e	1089
bfictorie	0:8cdad1c73e8e	1090	len = (int)strlen(ppp_settings.passwd);
bfictorie	0:8cdad1c73e8e	1091	if (len > MAXSECRETLEN) {
bfictorie	0:8cdad1c73e8e	1092	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
bfictorie	0:8cdad1c73e8e	1093	len = MAXSECRETLEN;
bfictorie	0:8cdad1c73e8e	1094	}
bfictorie	0:8cdad1c73e8e	1095
bfictorie	0:8cdad1c73e8e	1096	BCOPY(ppp_settings.passwd, secret, len);
bfictorie	0:8cdad1c73e8e	1097	*secret_len = len;
bfictorie	0:8cdad1c73e8e	1098
bfictorie	0:8cdad1c73e8e	1099	return 1;
bfictorie	0:8cdad1c73e8e	1100	#else
bfictorie	0:8cdad1c73e8e	1101	int ret = 0, len;
bfictorie	0:8cdad1c73e8e	1102	struct wordlist *addrs;
bfictorie	0:8cdad1c73e8e	1103	char secbuf[MAXWORDLEN];
bfictorie	0:8cdad1c73e8e	1104
bfictorie	0:8cdad1c73e8e	1105	addrs = NULL;
bfictorie	0:8cdad1c73e8e	1106	secbuf[0] = 0;
bfictorie	0:8cdad1c73e8e	1107
bfictorie	0:8cdad1c73e8e	1108	/* XXX Find secret. */
bfictorie	0:8cdad1c73e8e	1109	if (ret < 0) {
bfictorie	0:8cdad1c73e8e	1110	return 0;
bfictorie	0:8cdad1c73e8e	1111	}
bfictorie	0:8cdad1c73e8e	1112
bfictorie	0:8cdad1c73e8e	1113	if (save_addrs) {
bfictorie	0:8cdad1c73e8e	1114	set_allowed_addrs(unit, addrs);
bfictorie	0:8cdad1c73e8e	1115	}
bfictorie	0:8cdad1c73e8e	1116
bfictorie	0:8cdad1c73e8e	1117	len = strlen(secbuf);
bfictorie	0:8cdad1c73e8e	1118	if (len > MAXSECRETLEN) {
bfictorie	0:8cdad1c73e8e	1119	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
bfictorie	0:8cdad1c73e8e	1120	len = MAXSECRETLEN;
bfictorie	0:8cdad1c73e8e	1121	}
bfictorie	0:8cdad1c73e8e	1122
bfictorie	0:8cdad1c73e8e	1123	BCOPY(secbuf, secret, len);
bfictorie	0:8cdad1c73e8e	1124	BZERO(secbuf, sizeof(secbuf));
bfictorie	0:8cdad1c73e8e	1125	*secret_len = len;
bfictorie	0:8cdad1c73e8e	1126
bfictorie	0:8cdad1c73e8e	1127	return 1;
bfictorie	0:8cdad1c73e8e	1128	#endif
bfictorie	0:8cdad1c73e8e	1129	}
bfictorie	0:8cdad1c73e8e	1130	#endif /* CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	1131
bfictorie	0:8cdad1c73e8e	1132
bfictorie	0:8cdad1c73e8e	1133	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	1134	/*
bfictorie	0:8cdad1c73e8e	1135	* set_allowed_addrs() - set the list of allowed addresses.
bfictorie	0:8cdad1c73e8e	1136	*/
bfictorie	0:8cdad1c73e8e	1137	static void
bfictorie	0:8cdad1c73e8e	1138	set_allowed_addrs(int unit, struct wordlist *addrs)
bfictorie	0:8cdad1c73e8e	1139	{
bfictorie	0:8cdad1c73e8e	1140	if (addresses[unit] != NULL) {
bfictorie	0:8cdad1c73e8e	1141	free_wordlist(addresses[unit]);
bfictorie	0:8cdad1c73e8e	1142	}
bfictorie	0:8cdad1c73e8e	1143	addresses[unit] = addrs;
bfictorie	0:8cdad1c73e8e	1144
bfictorie	0:8cdad1c73e8e	1145	#if 0
bfictorie	0:8cdad1c73e8e	1146	/*
bfictorie	0:8cdad1c73e8e	1147	* If there's only one authorized address we might as well
bfictorie	0:8cdad1c73e8e	1148	* ask our peer for that one right away
bfictorie	0:8cdad1c73e8e	1149	*/
bfictorie	0:8cdad1c73e8e	1150	if (addrs != NULL && addrs->next == NULL) {
bfictorie	0:8cdad1c73e8e	1151	char *p = addrs->word;
bfictorie	0:8cdad1c73e8e	1152	struct ipcp_options *wo = &ipcp_wantoptions[unit];
bfictorie	0:8cdad1c73e8e	1153	u32_t a;
bfictorie	0:8cdad1c73e8e	1154	struct hostent *hp;
bfictorie	0:8cdad1c73e8e	1155
bfictorie	0:8cdad1c73e8e	1156	if (wo->hisaddr == 0 && p != '!' && p != '-' && strchr(p, '/') == NULL) {
bfictorie	0:8cdad1c73e8e	1157	hp = gethostbyname(p);
bfictorie	0:8cdad1c73e8e	1158	if (hp != NULL && hp->h_addrtype == AF_INET) {
bfictorie	0:8cdad1c73e8e	1159	a = (u32_t )hp->h_addr;
bfictorie	0:8cdad1c73e8e	1160	} else {
bfictorie	0:8cdad1c73e8e	1161	a = inet_addr(p);
bfictorie	0:8cdad1c73e8e	1162	}
bfictorie	0:8cdad1c73e8e	1163	if (a != (u32_t) -1) {
bfictorie	0:8cdad1c73e8e	1164	wo->hisaddr = a;
bfictorie	0:8cdad1c73e8e	1165	}
bfictorie	0:8cdad1c73e8e	1166	}
bfictorie	0:8cdad1c73e8e	1167	}
bfictorie	0:8cdad1c73e8e	1168	#endif
bfictorie	0:8cdad1c73e8e	1169	}
bfictorie	0:8cdad1c73e8e	1170	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	1171
bfictorie	0:8cdad1c73e8e	1172	/*
bfictorie	0:8cdad1c73e8e	1173	* auth_ip_addr - check whether the peer is authorized to use
bfictorie	0:8cdad1c73e8e	1174	* a given IP address. Returns 1 if authorized, 0 otherwise.
bfictorie	0:8cdad1c73e8e	1175	*/
bfictorie	0:8cdad1c73e8e	1176	int
bfictorie	0:8cdad1c73e8e	1177	auth_ip_addr(int unit, u32_t addr)
bfictorie	0:8cdad1c73e8e	1178	{
bfictorie	0:8cdad1c73e8e	1179	return ip_addr_check(addr, addresses[unit]);
bfictorie	0:8cdad1c73e8e	1180	}
bfictorie	0:8cdad1c73e8e	1181
bfictorie	0:8cdad1c73e8e	1182	static int /* @todo: integrate this funtion into auth_ip_addr()*/
bfictorie	0:8cdad1c73e8e	1183	ip_addr_check(u32_t addr, struct wordlist *addrs)
bfictorie	0:8cdad1c73e8e	1184	{
bfictorie	0:8cdad1c73e8e	1185	/* don't allow loopback or multicast address */
bfictorie	0:8cdad1c73e8e	1186	if (bad_ip_adrs(addr)) {
bfictorie	0:8cdad1c73e8e	1187	return 0;
bfictorie	0:8cdad1c73e8e	1188	}
bfictorie	0:8cdad1c73e8e	1189
bfictorie	0:8cdad1c73e8e	1190	if (addrs == NULL) {
bfictorie	0:8cdad1c73e8e	1191	return !ppp_settings.auth_required; /* no addresses authorized */
bfictorie	0:8cdad1c73e8e	1192	}
bfictorie	0:8cdad1c73e8e	1193
bfictorie	0:8cdad1c73e8e	1194	/* XXX All other addresses allowed. */
bfictorie	0:8cdad1c73e8e	1195	return 1;
bfictorie	0:8cdad1c73e8e	1196	}
bfictorie	0:8cdad1c73e8e	1197
bfictorie	0:8cdad1c73e8e	1198	/*
bfictorie	0:8cdad1c73e8e	1199	* bad_ip_adrs - return 1 if the IP address is one we don't want
bfictorie	0:8cdad1c73e8e	1200	* to use, such as an address in the loopback net or a multicast address.
bfictorie	0:8cdad1c73e8e	1201	* addr is in network byte order.
bfictorie	0:8cdad1c73e8e	1202	*/
bfictorie	0:8cdad1c73e8e	1203	int
bfictorie	0:8cdad1c73e8e	1204	bad_ip_adrs(u32_t addr)
bfictorie	0:8cdad1c73e8e	1205	{
bfictorie	0:8cdad1c73e8e	1206	addr = ntohl(addr);
bfictorie	0:8cdad1c73e8e	1207	return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
bfictorie	0:8cdad1c73e8e	1208	\|\| IN_MULTICAST(addr) \|\| IN_BADCLASS(addr);
bfictorie	0:8cdad1c73e8e	1209	}
bfictorie	0:8cdad1c73e8e	1210
bfictorie	0:8cdad1c73e8e	1211	#if 0 /* UNUSED / / PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	1212	/*
bfictorie	0:8cdad1c73e8e	1213	* some_ip_ok - check a wordlist to see if it authorizes any
bfictorie	0:8cdad1c73e8e	1214	* IP address(es).
bfictorie	0:8cdad1c73e8e	1215	*/
bfictorie	0:8cdad1c73e8e	1216	static int
bfictorie	0:8cdad1c73e8e	1217	some_ip_ok(struct wordlist *addrs)
bfictorie	0:8cdad1c73e8e	1218	{
bfictorie	0:8cdad1c73e8e	1219	for (; addrs != 0; addrs = addrs->next) {
bfictorie	0:8cdad1c73e8e	1220	if (addrs->word[0] == '-')
bfictorie	0:8cdad1c73e8e	1221	break;
bfictorie	0:8cdad1c73e8e	1222	if (addrs->word[0] != '!')
bfictorie	0:8cdad1c73e8e	1223	return 1; /* some IP address is allowed */
bfictorie	0:8cdad1c73e8e	1224	}
bfictorie	0:8cdad1c73e8e	1225	return 0;
bfictorie	0:8cdad1c73e8e	1226	}
bfictorie	0:8cdad1c73e8e	1227
bfictorie	0:8cdad1c73e8e	1228	/*
bfictorie	0:8cdad1c73e8e	1229	* check_access - complain if a secret file has too-liberal permissions.
bfictorie	0:8cdad1c73e8e	1230	*/
bfictorie	0:8cdad1c73e8e	1231	static void
bfictorie	0:8cdad1c73e8e	1232	check_access(FILE f, char filename)
bfictorie	0:8cdad1c73e8e	1233	{
bfictorie	0:8cdad1c73e8e	1234	struct stat sbuf;
bfictorie	0:8cdad1c73e8e	1235
bfictorie	0:8cdad1c73e8e	1236	if (fstat(fileno(f), &sbuf) < 0) {
bfictorie	0:8cdad1c73e8e	1237	warn("cannot stat secret file %s: %m", filename);
bfictorie	0:8cdad1c73e8e	1238	} else if ((sbuf.st_mode & (S_IRWXG \| S_IRWXO)) != 0) {
bfictorie	0:8cdad1c73e8e	1239	warn("Warning - secret file %s has world and/or group access",
bfictorie	0:8cdad1c73e8e	1240	filename);
bfictorie	0:8cdad1c73e8e	1241	}
bfictorie	0:8cdad1c73e8e	1242	}
bfictorie	0:8cdad1c73e8e	1243
bfictorie	0:8cdad1c73e8e	1244
bfictorie	0:8cdad1c73e8e	1245	/*
bfictorie	0:8cdad1c73e8e	1246	* scan_authfile - Scan an authorization file for a secret suitable
bfictorie	0:8cdad1c73e8e	1247	* for authenticating `client' on `server'. The return value is -1
bfictorie	0:8cdad1c73e8e	1248	* if no secret is found, otherwise >= 0. The return value has
bfictorie	0:8cdad1c73e8e	1249	* NONWILD_CLIENT set if the secret didn't have "*" for the client, and
bfictorie	0:8cdad1c73e8e	1250	* NONWILD_SERVER set if the secret didn't have "*" for the server.
bfictorie	0:8cdad1c73e8e	1251	* Any following words on the line up to a "--" (i.e. address authorization
bfictorie	0:8cdad1c73e8e	1252	* info) are placed in a wordlist and returned in *addrs. Any
bfictorie	0:8cdad1c73e8e	1253	* following words (extra options) are placed in a wordlist and
bfictorie	0:8cdad1c73e8e	1254	* returned in *opts.
bfictorie	0:8cdad1c73e8e	1255	* We assume secret is NULL or points to MAXWORDLEN bytes of space.
bfictorie	0:8cdad1c73e8e	1256	*/
bfictorie	0:8cdad1c73e8e	1257	static int
bfictorie	0:8cdad1c73e8e	1258	scan_authfile(FILE f, char client, char server, char secret, struct wordlist addrs, struct wordlist opts, char *filename)
bfictorie	0:8cdad1c73e8e	1259	{
bfictorie	0:8cdad1c73e8e	1260	/* We do not (currently) need this in lwip */
bfictorie	0:8cdad1c73e8e	1261	return 0; /* dummy */
bfictorie	0:8cdad1c73e8e	1262	}
bfictorie	0:8cdad1c73e8e	1263	/*
bfictorie	0:8cdad1c73e8e	1264	* free_wordlist - release memory allocated for a wordlist.
bfictorie	0:8cdad1c73e8e	1265	*/
bfictorie	0:8cdad1c73e8e	1266	static void
bfictorie	0:8cdad1c73e8e	1267	free_wordlist(struct wordlist *wp)
bfictorie	0:8cdad1c73e8e	1268	{
bfictorie	0:8cdad1c73e8e	1269	struct wordlist *next;
bfictorie	0:8cdad1c73e8e	1270
bfictorie	0:8cdad1c73e8e	1271	while (wp != NULL) {
bfictorie	0:8cdad1c73e8e	1272	next = wp->next;
bfictorie	0:8cdad1c73e8e	1273	free(wp);
bfictorie	0:8cdad1c73e8e	1274	wp = next;
bfictorie	0:8cdad1c73e8e	1275	}
bfictorie	0:8cdad1c73e8e	1276	}
bfictorie	0:8cdad1c73e8e	1277
bfictorie	0:8cdad1c73e8e	1278	/*
bfictorie	0:8cdad1c73e8e	1279	* auth_script_done - called when the auth-up or auth-down script
bfictorie	0:8cdad1c73e8e	1280	* has finished.
bfictorie	0:8cdad1c73e8e	1281	*/
bfictorie	0:8cdad1c73e8e	1282	static void
bfictorie	0:8cdad1c73e8e	1283	auth_script_done(void *arg)
bfictorie	0:8cdad1c73e8e	1284	{
bfictorie	0:8cdad1c73e8e	1285	auth_script_pid = 0;
bfictorie	0:8cdad1c73e8e	1286	switch (auth_script_state) {
bfictorie	0:8cdad1c73e8e	1287	case s_up:
bfictorie	0:8cdad1c73e8e	1288	if (auth_state == s_down) {
bfictorie	0:8cdad1c73e8e	1289	auth_script_state = s_down;
bfictorie	0:8cdad1c73e8e	1290	auth_script(_PATH_AUTHDOWN);
bfictorie	0:8cdad1c73e8e	1291	}
bfictorie	0:8cdad1c73e8e	1292	break;
bfictorie	0:8cdad1c73e8e	1293	case s_down:
bfictorie	0:8cdad1c73e8e	1294	if (auth_state == s_up) {
bfictorie	0:8cdad1c73e8e	1295	auth_script_state = s_up;
bfictorie	0:8cdad1c73e8e	1296	auth_script(_PATH_AUTHUP);
bfictorie	0:8cdad1c73e8e	1297	}
bfictorie	0:8cdad1c73e8e	1298	break;
bfictorie	0:8cdad1c73e8e	1299	}
bfictorie	0:8cdad1c73e8e	1300	}
bfictorie	0:8cdad1c73e8e	1301
bfictorie	0:8cdad1c73e8e	1302	/*
bfictorie	0:8cdad1c73e8e	1303	* auth_script - execute a script with arguments
bfictorie	0:8cdad1c73e8e	1304	* interface-name peer-name real-user tty speed
bfictorie	0:8cdad1c73e8e	1305	*/
bfictorie	0:8cdad1c73e8e	1306	static void
bfictorie	0:8cdad1c73e8e	1307	auth_script(char *script)
bfictorie	0:8cdad1c73e8e	1308	{
bfictorie	0:8cdad1c73e8e	1309	char strspeed[32];
bfictorie	0:8cdad1c73e8e	1310	struct passwd *pw;
bfictorie	0:8cdad1c73e8e	1311	char struid[32];
bfictorie	0:8cdad1c73e8e	1312	char *user_name;
bfictorie	0:8cdad1c73e8e	1313	char *argv[8];
bfictorie	0:8cdad1c73e8e	1314
bfictorie	0:8cdad1c73e8e	1315	if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
bfictorie	0:8cdad1c73e8e	1316	user_name = pw->pw_name;
bfictorie	0:8cdad1c73e8e	1317	else {
bfictorie	0:8cdad1c73e8e	1318	slprintf(struid, sizeof(struid), "%d", getuid());
bfictorie	0:8cdad1c73e8e	1319	user_name = struid;
bfictorie	0:8cdad1c73e8e	1320	}
bfictorie	0:8cdad1c73e8e	1321	slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
bfictorie	0:8cdad1c73e8e	1322
bfictorie	0:8cdad1c73e8e	1323	argv[0] = script;
bfictorie	0:8cdad1c73e8e	1324	argv[1] = ifname;
bfictorie	0:8cdad1c73e8e	1325	argv[2] = peer_authname;
bfictorie	0:8cdad1c73e8e	1326	argv[3] = user_name;
bfictorie	0:8cdad1c73e8e	1327	argv[4] = devnam;
bfictorie	0:8cdad1c73e8e	1328	argv[5] = strspeed;
bfictorie	0:8cdad1c73e8e	1329	argv[6] = NULL;
bfictorie	0:8cdad1c73e8e	1330
bfictorie	0:8cdad1c73e8e	1331	auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
bfictorie	0:8cdad1c73e8e	1332	}
bfictorie	0:8cdad1c73e8e	1333	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
bfictorie	0:8cdad1c73e8e	1334	#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/auth.c@0:8cdad1c73e8e, 2012-03-25 (annotated)

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

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