NetServicesMod - Modified version of NetServices. Fixes an issue w…

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Modified version of NetServices. Fixes an issue where connections failed should the HTTP response status line be received in a packet on its own prior to any further headers. Changes are made to the HTTPClient.cpp file's readHeaders method.

lwip/netif/ppp/auth.c@0:ec559500a63f, 2011-04-08 (annotated)

Committer:: andrewbonney
Date:: Fri Apr 08 14:39:41 2011 +0000
Revision:: 0:ec559500a63f

Who changed what in which revision?

User	Revision	Line number	New contents of line
andrewbonney	0:ec559500a63f	1	/*****************************************************************************
andrewbonney	0:ec559500a63f	2	* auth.c - Network Authentication and Phase Control program file.
andrewbonney	0:ec559500a63f	3	*
andrewbonney	0:ec559500a63f	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
andrewbonney	0:ec559500a63f	5	* Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
andrewbonney	0:ec559500a63f	6	*
andrewbonney	0:ec559500a63f	7	* The authors hereby grant permission to use, copy, modify, distribute,
andrewbonney	0:ec559500a63f	8	* and license this software and its documentation for any purpose, provided
andrewbonney	0:ec559500a63f	9	* that existing copyright notices are retained in all copies and that this
andrewbonney	0:ec559500a63f	10	* notice and the following disclaimer are included verbatim in any
andrewbonney	0:ec559500a63f	11	* distributions. No written agreement, license, or royalty fee is required
andrewbonney	0:ec559500a63f	12	* for any of the authorized uses.
andrewbonney	0:ec559500a63f	13	*
andrewbonney	0:ec559500a63f	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
andrewbonney	0:ec559500a63f	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
andrewbonney	0:ec559500a63f	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
andrewbonney	0:ec559500a63f	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
andrewbonney	0:ec559500a63f	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
andrewbonney	0:ec559500a63f	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
andrewbonney	0:ec559500a63f	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
andrewbonney	0:ec559500a63f	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
andrewbonney	0:ec559500a63f	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
andrewbonney	0:ec559500a63f	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
andrewbonney	0:ec559500a63f	24	*
andrewbonney	0:ec559500a63f	25	******************************************************************************
andrewbonney	0:ec559500a63f	26	* REVISION HISTORY
andrewbonney	0:ec559500a63f	27	*
andrewbonney	0:ec559500a63f	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
andrewbonney	0:ec559500a63f	29	* Ported to lwIP.
andrewbonney	0:ec559500a63f	30	* 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
andrewbonney	0:ec559500a63f	31	* Ported from public pppd code.
andrewbonney	0:ec559500a63f	32	*****************************************************************************/
andrewbonney	0:ec559500a63f	33	/*
andrewbonney	0:ec559500a63f	34	* auth.c - PPP authentication and phase control.
andrewbonney	0:ec559500a63f	35	*
andrewbonney	0:ec559500a63f	36	* Copyright (c) 1993 The Australian National University.
andrewbonney	0:ec559500a63f	37	* All rights reserved.
andrewbonney	0:ec559500a63f	38	*
andrewbonney	0:ec559500a63f	39	* Redistribution and use in source and binary forms are permitted
andrewbonney	0:ec559500a63f	40	* provided that the above copyright notice and this paragraph are
andrewbonney	0:ec559500a63f	41	* duplicated in all such forms and that any documentation,
andrewbonney	0:ec559500a63f	42	* advertising materials, and other materials related to such
andrewbonney	0:ec559500a63f	43	* distribution and use acknowledge that the software was developed
andrewbonney	0:ec559500a63f	44	* by the Australian National University. The name of the University
andrewbonney	0:ec559500a63f	45	* may not be used to endorse or promote products derived from this
andrewbonney	0:ec559500a63f	46	* software without specific prior written permission.
andrewbonney	0:ec559500a63f	47	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
andrewbonney	0:ec559500a63f	48	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
andrewbonney	0:ec559500a63f	49	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
andrewbonney	0:ec559500a63f	50	*
andrewbonney	0:ec559500a63f	51	* Copyright (c) 1989 Carnegie Mellon University.
andrewbonney	0:ec559500a63f	52	* All rights reserved.
andrewbonney	0:ec559500a63f	53	*
andrewbonney	0:ec559500a63f	54	* Redistribution and use in source and binary forms are permitted
andrewbonney	0:ec559500a63f	55	* provided that the above copyright notice and this paragraph are
andrewbonney	0:ec559500a63f	56	* duplicated in all such forms and that any documentation,
andrewbonney	0:ec559500a63f	57	* advertising materials, and other materials related to such
andrewbonney	0:ec559500a63f	58	* distribution and use acknowledge that the software was developed
andrewbonney	0:ec559500a63f	59	* by Carnegie Mellon University. The name of the
andrewbonney	0:ec559500a63f	60	* University may not be used to endorse or promote products derived
andrewbonney	0:ec559500a63f	61	* from this software without specific prior written permission.
andrewbonney	0:ec559500a63f	62	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
andrewbonney	0:ec559500a63f	63	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
andrewbonney	0:ec559500a63f	64	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
andrewbonney	0:ec559500a63f	65	*/
andrewbonney	0:ec559500a63f	66
andrewbonney	0:ec559500a63f	67	#include "lwip/opt.h"
andrewbonney	0:ec559500a63f	68
andrewbonney	0:ec559500a63f	69	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
andrewbonney	0:ec559500a63f	70
andrewbonney	0:ec559500a63f	71	#include "ppp.h"
andrewbonney	0:ec559500a63f	72	#include "pppdebug.h"
andrewbonney	0:ec559500a63f	73
andrewbonney	0:ec559500a63f	74	#include "fsm.h"
andrewbonney	0:ec559500a63f	75	#include "lcp.h"
andrewbonney	0:ec559500a63f	76	#include "pap.h"
andrewbonney	0:ec559500a63f	77	#include "chap.h"
andrewbonney	0:ec559500a63f	78	#include "auth.h"
andrewbonney	0:ec559500a63f	79	#include "ipcp.h"
andrewbonney	0:ec559500a63f	80
andrewbonney	0:ec559500a63f	81	#if CBCP_SUPPORT
andrewbonney	0:ec559500a63f	82	#include "cbcp.h"
andrewbonney	0:ec559500a63f	83	#endif /* CBCP_SUPPORT */
andrewbonney	0:ec559500a63f	84
andrewbonney	0:ec559500a63f	85	#include "lwip/inet.h"
andrewbonney	0:ec559500a63f	86
andrewbonney	0:ec559500a63f	87	#include <string.h>
andrewbonney	0:ec559500a63f	88
andrewbonney	0:ec559500a63f	89	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	90	/* Bits in scan_authfile return value */
andrewbonney	0:ec559500a63f	91	#define NONWILD_SERVER 1
andrewbonney	0:ec559500a63f	92	#define NONWILD_CLIENT 2
andrewbonney	0:ec559500a63f	93
andrewbonney	0:ec559500a63f	94	#define ISWILD(word) (word[0] == '*' && word[1] == 0)
andrewbonney	0:ec559500a63f	95	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	96
andrewbonney	0:ec559500a63f	97	#if PAP_SUPPORT \|\| CHAP_SUPPORT
andrewbonney	0:ec559500a63f	98	/* The name by which the peer authenticated itself to us. */
andrewbonney	0:ec559500a63f	99	static char peer_authname[MAXNAMELEN];
andrewbonney	0:ec559500a63f	100	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	101
andrewbonney	0:ec559500a63f	102	/* Records which authentication operations haven't completed yet. */
andrewbonney	0:ec559500a63f	103	static int auth_pending[NUM_PPP];
andrewbonney	0:ec559500a63f	104
andrewbonney	0:ec559500a63f	105	/* Set if we have successfully called plogin() */
andrewbonney	0:ec559500a63f	106	static int logged_in;
andrewbonney	0:ec559500a63f	107
andrewbonney	0:ec559500a63f	108	/* Set if we have run the /etc/ppp/auth-up script. */
andrewbonney	0:ec559500a63f	109	static int did_authup; /* @todo, we don't need this in lwip*/
andrewbonney	0:ec559500a63f	110
andrewbonney	0:ec559500a63f	111	/* List of addresses which the peer may use. */
andrewbonney	0:ec559500a63f	112	static struct wordlist *addresses[NUM_PPP];
andrewbonney	0:ec559500a63f	113
andrewbonney	0:ec559500a63f	114	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	115	/* Wordlist giving addresses which the peer may use
andrewbonney	0:ec559500a63f	116	without authenticating itself. */
andrewbonney	0:ec559500a63f	117	static struct wordlist *noauth_addrs;
andrewbonney	0:ec559500a63f	118
andrewbonney	0:ec559500a63f	119	/* Extra options to apply, from the secrets file entry for the peer. */
andrewbonney	0:ec559500a63f	120	static struct wordlist *extra_options;
andrewbonney	0:ec559500a63f	121	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	122
andrewbonney	0:ec559500a63f	123	/* Number of network protocols which we have opened. */
andrewbonney	0:ec559500a63f	124	static int num_np_open;
andrewbonney	0:ec559500a63f	125
andrewbonney	0:ec559500a63f	126	/* Number of network protocols which have come up. */
andrewbonney	0:ec559500a63f	127	static int num_np_up;
andrewbonney	0:ec559500a63f	128
andrewbonney	0:ec559500a63f	129	#if PAP_SUPPORT \|\| CHAP_SUPPORT
andrewbonney	0:ec559500a63f	130	/* Set if we got the contents of passwd[] from the pap-secrets file. */
andrewbonney	0:ec559500a63f	131	static int passwd_from_file;
andrewbonney	0:ec559500a63f	132	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	133
andrewbonney	0:ec559500a63f	134	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	135	/* Set if we require authentication only because we have a default route. */
andrewbonney	0:ec559500a63f	136	static bool default_auth;
andrewbonney	0:ec559500a63f	137
andrewbonney	0:ec559500a63f	138	/* Hook to enable a plugin to control the idle time limit */
andrewbonney	0:ec559500a63f	139	int (idle_time_hook) __P((struct ppp_idle )) = NULL;
andrewbonney	0:ec559500a63f	140
andrewbonney	0:ec559500a63f	141	/* Hook for a plugin to say whether we can possibly authenticate any peer */
andrewbonney	0:ec559500a63f	142	int (*pap_check_hook) __P((void)) = NULL;
andrewbonney	0:ec559500a63f	143
andrewbonney	0:ec559500a63f	144	/* Hook for a plugin to check the PAP user and password */
andrewbonney	0:ec559500a63f	145	int (pap_auth_hook) __P((char user, char passwd, char *msgp,
andrewbonney	0:ec559500a63f	146	struct wordlist **paddrs,
andrewbonney	0:ec559500a63f	147	struct wordlist **popts)) = NULL;
andrewbonney	0:ec559500a63f	148
andrewbonney	0:ec559500a63f	149	/* Hook for a plugin to know about the PAP user logout */
andrewbonney	0:ec559500a63f	150	void (*pap_logout_hook) __P((void)) = NULL;
andrewbonney	0:ec559500a63f	151
andrewbonney	0:ec559500a63f	152	/* Hook for a plugin to get the PAP password for authenticating us */
andrewbonney	0:ec559500a63f	153	int (pap_passwd_hook) __P((char user, char *passwd)) = NULL;
andrewbonney	0:ec559500a63f	154
andrewbonney	0:ec559500a63f	155	/*
andrewbonney	0:ec559500a63f	156	* This is used to ensure that we don't start an auth-up/down
andrewbonney	0:ec559500a63f	157	* script while one is already running.
andrewbonney	0:ec559500a63f	158	*/
andrewbonney	0:ec559500a63f	159	enum script_state {
andrewbonney	0:ec559500a63f	160	s_down,
andrewbonney	0:ec559500a63f	161	s_up
andrewbonney	0:ec559500a63f	162	};
andrewbonney	0:ec559500a63f	163
andrewbonney	0:ec559500a63f	164	static enum script_state auth_state = s_down;
andrewbonney	0:ec559500a63f	165	static enum script_state auth_script_state = s_down;
andrewbonney	0:ec559500a63f	166	static pid_t auth_script_pid = 0;
andrewbonney	0:ec559500a63f	167
andrewbonney	0:ec559500a63f	168	/*
andrewbonney	0:ec559500a63f	169	* Option variables.
andrewbonney	0:ec559500a63f	170	* lwip: some of these are present in the ppp_settings structure
andrewbonney	0:ec559500a63f	171	*/
andrewbonney	0:ec559500a63f	172	bool uselogin = 0; /* Use /etc/passwd for checking PAP */
andrewbonney	0:ec559500a63f	173	bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
andrewbonney	0:ec559500a63f	174	bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
andrewbonney	0:ec559500a63f	175	bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
andrewbonney	0:ec559500a63f	176	bool usehostname = 0; /* Use hostname for our_name */
andrewbonney	0:ec559500a63f	177	bool auth_required = 0; /* Always require authentication from peer */
andrewbonney	0:ec559500a63f	178	bool allow_any_ip = 0; /* Allow peer to use any IP address */
andrewbonney	0:ec559500a63f	179	bool explicit_remote = 0; /* User specified explicit remote name */
andrewbonney	0:ec559500a63f	180	char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
andrewbonney	0:ec559500a63f	181
andrewbonney	0:ec559500a63f	182	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	183
andrewbonney	0:ec559500a63f	184	/* Bits in auth_pending[] */
andrewbonney	0:ec559500a63f	185	#define PAP_WITHPEER 1
andrewbonney	0:ec559500a63f	186	#define PAP_PEER 2
andrewbonney	0:ec559500a63f	187	#define CHAP_WITHPEER 4
andrewbonney	0:ec559500a63f	188	#define CHAP_PEER 8
andrewbonney	0:ec559500a63f	189
andrewbonney	0:ec559500a63f	190	/* @todo, move this somewhere */
andrewbonney	0:ec559500a63f	191	/* Used for storing a sequence of words. Usually malloced. */
andrewbonney	0:ec559500a63f	192	struct wordlist {
andrewbonney	0:ec559500a63f	193	struct wordlist *next;
andrewbonney	0:ec559500a63f	194	char word[1];
andrewbonney	0:ec559500a63f	195	};
andrewbonney	0:ec559500a63f	196
andrewbonney	0:ec559500a63f	197
andrewbonney	0:ec559500a63f	198	extern char crypt (const char , const char *);
andrewbonney	0:ec559500a63f	199
andrewbonney	0:ec559500a63f	200	/* Prototypes for procedures local to this file. */
andrewbonney	0:ec559500a63f	201
andrewbonney	0:ec559500a63f	202	static void network_phase (int);
andrewbonney	0:ec559500a63f	203	static void check_idle (void *);
andrewbonney	0:ec559500a63f	204	static void connect_time_expired (void *);
andrewbonney	0:ec559500a63f	205	#if 0
andrewbonney	0:ec559500a63f	206	static int plogin (char , char , char *, int );
andrewbonney	0:ec559500a63f	207	#endif
andrewbonney	0:ec559500a63f	208	static void plogout (void);
andrewbonney	0:ec559500a63f	209	static int null_login (int);
andrewbonney	0:ec559500a63f	210	static int get_pap_passwd (int, char , char );
andrewbonney	0:ec559500a63f	211	static int have_pap_secret (void);
andrewbonney	0:ec559500a63f	212	static int have_chap_secret (char , char , u32_t);
andrewbonney	0:ec559500a63f	213	static int ip_addr_check (u32_t, struct wordlist *);
andrewbonney	0:ec559500a63f	214
andrewbonney	0:ec559500a63f	215	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	216	static int scan_authfile (FILE , char , char , char ,
andrewbonney	0:ec559500a63f	217	struct wordlist , struct wordlist ,
andrewbonney	0:ec559500a63f	218	char *);
andrewbonney	0:ec559500a63f	219	static void free_wordlist (struct wordlist *);
andrewbonney	0:ec559500a63f	220	static void auth_script (char *);
andrewbonney	0:ec559500a63f	221	static void auth_script_done (void *);
andrewbonney	0:ec559500a63f	222	static void set_allowed_addrs (int unit, struct wordlist *addrs);
andrewbonney	0:ec559500a63f	223	static int some_ip_ok (struct wordlist *);
andrewbonney	0:ec559500a63f	224	static int setupapfile (char **);
andrewbonney	0:ec559500a63f	225	static int privgroup (char **);
andrewbonney	0:ec559500a63f	226	static int set_noauth_addr (char **);
andrewbonney	0:ec559500a63f	227	static void check_access (FILE , char );
andrewbonney	0:ec559500a63f	228	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	229
andrewbonney	0:ec559500a63f	230	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	231	/*
andrewbonney	0:ec559500a63f	232	* Authentication-related options.
andrewbonney	0:ec559500a63f	233	*/
andrewbonney	0:ec559500a63f	234	option_t auth_options[] = {
andrewbonney	0:ec559500a63f	235	{ "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
andrewbonney	0:ec559500a63f	236	"Require PAP authentication from peer", 1, &auth_required },
andrewbonney	0:ec559500a63f	237	{ "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
andrewbonney	0:ec559500a63f	238	"Require PAP authentication from peer", 1, &auth_required },
andrewbonney	0:ec559500a63f	239	{ "refuse-pap", o_bool, &refuse_pap,
andrewbonney	0:ec559500a63f	240	"Don't agree to auth to peer with PAP", 1 },
andrewbonney	0:ec559500a63f	241	{ "-pap", o_bool, &refuse_pap,
andrewbonney	0:ec559500a63f	242	"Don't allow PAP authentication with peer", 1 },
andrewbonney	0:ec559500a63f	243	{ "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
andrewbonney	0:ec559500a63f	244	"Require CHAP authentication from peer", 1, &auth_required },
andrewbonney	0:ec559500a63f	245	{ "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
andrewbonney	0:ec559500a63f	246	"Require CHAP authentication from peer", 1, &auth_required },
andrewbonney	0:ec559500a63f	247	{ "refuse-chap", o_bool, &refuse_chap,
andrewbonney	0:ec559500a63f	248	"Don't agree to auth to peer with CHAP", 1 },
andrewbonney	0:ec559500a63f	249	{ "-chap", o_bool, &refuse_chap,
andrewbonney	0:ec559500a63f	250	"Don't allow CHAP authentication with peer", 1 },
andrewbonney	0:ec559500a63f	251	{ "name", o_string, our_name,
andrewbonney	0:ec559500a63f	252	"Set local name for authentication",
andrewbonney	0:ec559500a63f	253	OPT_PRIV\|OPT_STATIC, NULL, MAXNAMELEN },
andrewbonney	0:ec559500a63f	254	{ "user", o_string, user,
andrewbonney	0:ec559500a63f	255	"Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
andrewbonney	0:ec559500a63f	256	{ "usehostname", o_bool, &usehostname,
andrewbonney	0:ec559500a63f	257	"Must use hostname for authentication", 1 },
andrewbonney	0:ec559500a63f	258	{ "remotename", o_string, remote_name,
andrewbonney	0:ec559500a63f	259	"Set remote name for authentication", OPT_STATIC,
andrewbonney	0:ec559500a63f	260	&explicit_remote, MAXNAMELEN },
andrewbonney	0:ec559500a63f	261	{ "auth", o_bool, &auth_required,
andrewbonney	0:ec559500a63f	262	"Require authentication from peer", 1 },
andrewbonney	0:ec559500a63f	263	{ "noauth", o_bool, &auth_required,
andrewbonney	0:ec559500a63f	264	"Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
andrewbonney	0:ec559500a63f	265	{ "login", o_bool, &uselogin,
andrewbonney	0:ec559500a63f	266	"Use system password database for PAP", 1 },
andrewbonney	0:ec559500a63f	267	{ "papcrypt", o_bool, &cryptpap,
andrewbonney	0:ec559500a63f	268	"PAP passwords are encrypted", 1 },
andrewbonney	0:ec559500a63f	269	{ "+ua", o_special, (void *)setupapfile,
andrewbonney	0:ec559500a63f	270	"Get PAP user and password from file" },
andrewbonney	0:ec559500a63f	271	{ "password", o_string, passwd,
andrewbonney	0:ec559500a63f	272	"Password for authenticating us to the peer", OPT_STATIC,
andrewbonney	0:ec559500a63f	273	NULL, MAXSECRETLEN },
andrewbonney	0:ec559500a63f	274	{ "privgroup", o_special, (void *)privgroup,
andrewbonney	0:ec559500a63f	275	"Allow group members to use privileged options", OPT_PRIV },
andrewbonney	0:ec559500a63f	276	{ "allow-ip", o_special, (void *)set_noauth_addr,
andrewbonney	0:ec559500a63f	277	"Set IP address(es) which can be used without authentication",
andrewbonney	0:ec559500a63f	278	OPT_PRIV },
andrewbonney	0:ec559500a63f	279	{ NULL }
andrewbonney	0:ec559500a63f	280	};
andrewbonney	0:ec559500a63f	281	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	282	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	283	/*
andrewbonney	0:ec559500a63f	284	* setupapfile - specifies UPAP info for authenticating with peer.
andrewbonney	0:ec559500a63f	285	*/
andrewbonney	0:ec559500a63f	286	static int
andrewbonney	0:ec559500a63f	287	setupapfile(char **argv)
andrewbonney	0:ec559500a63f	288	{
andrewbonney	0:ec559500a63f	289	FILE * ufile;
andrewbonney	0:ec559500a63f	290	int l;
andrewbonney	0:ec559500a63f	291
andrewbonney	0:ec559500a63f	292	lcp_allowoptions[0].neg_upap = 1;
andrewbonney	0:ec559500a63f	293
andrewbonney	0:ec559500a63f	294	/* open user info file */
andrewbonney	0:ec559500a63f	295	seteuid(getuid());
andrewbonney	0:ec559500a63f	296	ufile = fopen(*argv, "r");
andrewbonney	0:ec559500a63f	297	seteuid(0);
andrewbonney	0:ec559500a63f	298	if (ufile == NULL) {
andrewbonney	0:ec559500a63f	299	option_error("unable to open user login data file %s", *argv);
andrewbonney	0:ec559500a63f	300	return 0;
andrewbonney	0:ec559500a63f	301	}
andrewbonney	0:ec559500a63f	302	check_access(ufile, *argv);
andrewbonney	0:ec559500a63f	303
andrewbonney	0:ec559500a63f	304	/* get username */
andrewbonney	0:ec559500a63f	305	if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
andrewbonney	0:ec559500a63f	306	\|\| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
andrewbonney	0:ec559500a63f	307	option_error("unable to read user login data file %s", *argv);
andrewbonney	0:ec559500a63f	308	return 0;
andrewbonney	0:ec559500a63f	309	}
andrewbonney	0:ec559500a63f	310	fclose(ufile);
andrewbonney	0:ec559500a63f	311
andrewbonney	0:ec559500a63f	312	/* get rid of newlines */
andrewbonney	0:ec559500a63f	313	l = strlen(user);
andrewbonney	0:ec559500a63f	314	if (l > 0 && user[l-1] == '\n')
andrewbonney	0:ec559500a63f	315	user[l-1] = 0;
andrewbonney	0:ec559500a63f	316	l = strlen(passwd);
andrewbonney	0:ec559500a63f	317	if (l > 0 && passwd[l-1] == '\n')
andrewbonney	0:ec559500a63f	318	passwd[l-1] = 0;
andrewbonney	0:ec559500a63f	319
andrewbonney	0:ec559500a63f	320	return (1);
andrewbonney	0:ec559500a63f	321	}
andrewbonney	0:ec559500a63f	322	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	323
andrewbonney	0:ec559500a63f	324	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	325	/*
andrewbonney	0:ec559500a63f	326	* privgroup - allow members of the group to have privileged access.
andrewbonney	0:ec559500a63f	327	*/
andrewbonney	0:ec559500a63f	328	static int
andrewbonney	0:ec559500a63f	329	privgroup(char **argv)
andrewbonney	0:ec559500a63f	330	{
andrewbonney	0:ec559500a63f	331	struct group *g;
andrewbonney	0:ec559500a63f	332	int i;
andrewbonney	0:ec559500a63f	333
andrewbonney	0:ec559500a63f	334	g = getgrnam(*argv);
andrewbonney	0:ec559500a63f	335	if (g == 0) {
andrewbonney	0:ec559500a63f	336	option_error("group %s is unknown", *argv);
andrewbonney	0:ec559500a63f	337	return 0;
andrewbonney	0:ec559500a63f	338	}
andrewbonney	0:ec559500a63f	339	for (i = 0; i < ngroups; ++i) {
andrewbonney	0:ec559500a63f	340	if (groups[i] == g->gr_gid) {
andrewbonney	0:ec559500a63f	341	privileged = 1;
andrewbonney	0:ec559500a63f	342	break;
andrewbonney	0:ec559500a63f	343	}
andrewbonney	0:ec559500a63f	344	}
andrewbonney	0:ec559500a63f	345	return 1;
andrewbonney	0:ec559500a63f	346	}
andrewbonney	0:ec559500a63f	347	#endif
andrewbonney	0:ec559500a63f	348
andrewbonney	0:ec559500a63f	349	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	350	/*
andrewbonney	0:ec559500a63f	351	* set_noauth_addr - set address(es) that can be used without authentication.
andrewbonney	0:ec559500a63f	352	* Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
andrewbonney	0:ec559500a63f	353	*/
andrewbonney	0:ec559500a63f	354	static int
andrewbonney	0:ec559500a63f	355	set_noauth_addr(char **argv)
andrewbonney	0:ec559500a63f	356	{
andrewbonney	0:ec559500a63f	357	char addr = argv;
andrewbonney	0:ec559500a63f	358	int l = strlen(addr);
andrewbonney	0:ec559500a63f	359	struct wordlist *wp;
andrewbonney	0:ec559500a63f	360
andrewbonney	0:ec559500a63f	361	wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
andrewbonney	0:ec559500a63f	362	if (wp == NULL)
andrewbonney	0:ec559500a63f	363	novm("allow-ip argument");
andrewbonney	0:ec559500a63f	364	wp->word = (char *) (wp + 1);
andrewbonney	0:ec559500a63f	365	wp->next = noauth_addrs;
andrewbonney	0:ec559500a63f	366	BCOPY(addr, wp->word, l);
andrewbonney	0:ec559500a63f	367	noauth_addrs = wp;
andrewbonney	0:ec559500a63f	368	return 1;
andrewbonney	0:ec559500a63f	369	}
andrewbonney	0:ec559500a63f	370	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	371
andrewbonney	0:ec559500a63f	372	/*
andrewbonney	0:ec559500a63f	373	* An Open on LCP has requested a change from Dead to Establish phase.
andrewbonney	0:ec559500a63f	374	* Do what's necessary to bring the physical layer up.
andrewbonney	0:ec559500a63f	375	*/
andrewbonney	0:ec559500a63f	376	void
andrewbonney	0:ec559500a63f	377	link_required(int unit)
andrewbonney	0:ec559500a63f	378	{
andrewbonney	0:ec559500a63f	379	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	380
andrewbonney	0:ec559500a63f	381	AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
andrewbonney	0:ec559500a63f	382	}
andrewbonney	0:ec559500a63f	383
andrewbonney	0:ec559500a63f	384	/*
andrewbonney	0:ec559500a63f	385	* LCP has terminated the link; go to the Dead phase and take the
andrewbonney	0:ec559500a63f	386	* physical layer down.
andrewbonney	0:ec559500a63f	387	*/
andrewbonney	0:ec559500a63f	388	void
andrewbonney	0:ec559500a63f	389	link_terminated(int unit)
andrewbonney	0:ec559500a63f	390	{
andrewbonney	0:ec559500a63f	391	AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
andrewbonney	0:ec559500a63f	392	if (lcp_phase[unit] == PHASE_DEAD) {
andrewbonney	0:ec559500a63f	393	return;
andrewbonney	0:ec559500a63f	394	}
andrewbonney	0:ec559500a63f	395	if (logged_in) {
andrewbonney	0:ec559500a63f	396	plogout();
andrewbonney	0:ec559500a63f	397	}
andrewbonney	0:ec559500a63f	398	lcp_phase[unit] = PHASE_DEAD;
andrewbonney	0:ec559500a63f	399	AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
andrewbonney	0:ec559500a63f	400	pppLinkTerminated(unit);
andrewbonney	0:ec559500a63f	401	}
andrewbonney	0:ec559500a63f	402
andrewbonney	0:ec559500a63f	403	/*
andrewbonney	0:ec559500a63f	404	* LCP has gone down; it will either die or try to re-establish.
andrewbonney	0:ec559500a63f	405	*/
andrewbonney	0:ec559500a63f	406	void
andrewbonney	0:ec559500a63f	407	link_down(int unit)
andrewbonney	0:ec559500a63f	408	{
andrewbonney	0:ec559500a63f	409	int i;
andrewbonney	0:ec559500a63f	410	struct protent *protp;
andrewbonney	0:ec559500a63f	411
andrewbonney	0:ec559500a63f	412	AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
andrewbonney	0:ec559500a63f	413
andrewbonney	0:ec559500a63f	414	if (did_authup) {
andrewbonney	0:ec559500a63f	415	/* XXX Do link down processing. */
andrewbonney	0:ec559500a63f	416	did_authup = 0;
andrewbonney	0:ec559500a63f	417	}
andrewbonney	0:ec559500a63f	418	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
andrewbonney	0:ec559500a63f	419	if (!protp->enabled_flag) {
andrewbonney	0:ec559500a63f	420	continue;
andrewbonney	0:ec559500a63f	421	}
andrewbonney	0:ec559500a63f	422	if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
andrewbonney	0:ec559500a63f	423	(*protp->lowerdown)(unit);
andrewbonney	0:ec559500a63f	424	}
andrewbonney	0:ec559500a63f	425	if (protp->protocol < 0xC000 && protp->close != NULL) {
andrewbonney	0:ec559500a63f	426	(*protp->close)(unit, "LCP down");
andrewbonney	0:ec559500a63f	427	}
andrewbonney	0:ec559500a63f	428	}
andrewbonney	0:ec559500a63f	429	num_np_open = 0; /* number of network protocols we have opened */
andrewbonney	0:ec559500a63f	430	num_np_up = 0; /* Number of network protocols which have come up */
andrewbonney	0:ec559500a63f	431
andrewbonney	0:ec559500a63f	432	if (lcp_phase[unit] != PHASE_DEAD) {
andrewbonney	0:ec559500a63f	433	lcp_phase[unit] = PHASE_TERMINATE;
andrewbonney	0:ec559500a63f	434	}
andrewbonney	0:ec559500a63f	435	pppLinkDown(unit);
andrewbonney	0:ec559500a63f	436	}
andrewbonney	0:ec559500a63f	437
andrewbonney	0:ec559500a63f	438	/*
andrewbonney	0:ec559500a63f	439	* The link is established.
andrewbonney	0:ec559500a63f	440	* Proceed to the Dead, Authenticate or Network phase as appropriate.
andrewbonney	0:ec559500a63f	441	*/
andrewbonney	0:ec559500a63f	442	void
andrewbonney	0:ec559500a63f	443	link_established(int unit)
andrewbonney	0:ec559500a63f	444	{
andrewbonney	0:ec559500a63f	445	int auth;
andrewbonney	0:ec559500a63f	446	int i;
andrewbonney	0:ec559500a63f	447	struct protent *protp;
andrewbonney	0:ec559500a63f	448	lcp_options *wo = &lcp_wantoptions[unit];
andrewbonney	0:ec559500a63f	449	lcp_options *go = &lcp_gotoptions[unit];
andrewbonney	0:ec559500a63f	450	#if PAP_SUPPORT \|\| CHAP_SUPPORT
andrewbonney	0:ec559500a63f	451	lcp_options *ho = &lcp_hisoptions[unit];
andrewbonney	0:ec559500a63f	452	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	453
andrewbonney	0:ec559500a63f	454	AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
andrewbonney	0:ec559500a63f	455	/*
andrewbonney	0:ec559500a63f	456	* Tell higher-level protocols that LCP is up.
andrewbonney	0:ec559500a63f	457	*/
andrewbonney	0:ec559500a63f	458	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
andrewbonney	0:ec559500a63f	459	if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
andrewbonney	0:ec559500a63f	460	(*protp->lowerup)(unit);
andrewbonney	0:ec559500a63f	461	}
andrewbonney	0:ec559500a63f	462	}
andrewbonney	0:ec559500a63f	463	if (ppp_settings.auth_required && !(go->neg_chap \|\| go->neg_upap)) {
andrewbonney	0:ec559500a63f	464	/*
andrewbonney	0:ec559500a63f	465	* We wanted the peer to authenticate itself, and it refused:
andrewbonney	0:ec559500a63f	466	* treat it as though it authenticated with PAP using a username
andrewbonney	0:ec559500a63f	467	* of "" and a password of "". If that's not OK, boot it out.
andrewbonney	0:ec559500a63f	468	*/
andrewbonney	0:ec559500a63f	469	if (!wo->neg_upap \|\| !null_login(unit)) {
andrewbonney	0:ec559500a63f	470	AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
andrewbonney	0:ec559500a63f	471	lcp_close(unit, "peer refused to authenticate");
andrewbonney	0:ec559500a63f	472	return;
andrewbonney	0:ec559500a63f	473	}
andrewbonney	0:ec559500a63f	474	}
andrewbonney	0:ec559500a63f	475
andrewbonney	0:ec559500a63f	476	lcp_phase[unit] = PHASE_AUTHENTICATE;
andrewbonney	0:ec559500a63f	477	auth = 0;
andrewbonney	0:ec559500a63f	478	#if CHAP_SUPPORT
andrewbonney	0:ec559500a63f	479	if (go->neg_chap) {
andrewbonney	0:ec559500a63f	480	ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
andrewbonney	0:ec559500a63f	481	auth \|= CHAP_PEER;
andrewbonney	0:ec559500a63f	482	}
andrewbonney	0:ec559500a63f	483	#endif /* CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	484	#if PAP_SUPPORT && CHAP_SUPPORT
andrewbonney	0:ec559500a63f	485	else
andrewbonney	0:ec559500a63f	486	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	487	#if PAP_SUPPORT
andrewbonney	0:ec559500a63f	488	if (go->neg_upap) {
andrewbonney	0:ec559500a63f	489	upap_authpeer(unit);
andrewbonney	0:ec559500a63f	490	auth \|= PAP_PEER;
andrewbonney	0:ec559500a63f	491	}
andrewbonney	0:ec559500a63f	492	#endif /* PAP_SUPPORT */
andrewbonney	0:ec559500a63f	493	#if CHAP_SUPPORT
andrewbonney	0:ec559500a63f	494	if (ho->neg_chap) {
andrewbonney	0:ec559500a63f	495	ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
andrewbonney	0:ec559500a63f	496	auth \|= CHAP_WITHPEER;
andrewbonney	0:ec559500a63f	497	}
andrewbonney	0:ec559500a63f	498	#endif /* CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	499	#if PAP_SUPPORT && CHAP_SUPPORT
andrewbonney	0:ec559500a63f	500	else
andrewbonney	0:ec559500a63f	501	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	502	#if PAP_SUPPORT
andrewbonney	0:ec559500a63f	503	if (ho->neg_upap) {
andrewbonney	0:ec559500a63f	504	if (ppp_settings.passwd[0] == 0) {
andrewbonney	0:ec559500a63f	505	passwd_from_file = 1;
andrewbonney	0:ec559500a63f	506	if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
andrewbonney	0:ec559500a63f	507	AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
andrewbonney	0:ec559500a63f	508	}
andrewbonney	0:ec559500a63f	509	}
andrewbonney	0:ec559500a63f	510	upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
andrewbonney	0:ec559500a63f	511	auth \|= PAP_WITHPEER;
andrewbonney	0:ec559500a63f	512	}
andrewbonney	0:ec559500a63f	513	#endif /* PAP_SUPPORT */
andrewbonney	0:ec559500a63f	514	auth_pending[unit] = auth;
andrewbonney	0:ec559500a63f	515
andrewbonney	0:ec559500a63f	516	if (!auth) {
andrewbonney	0:ec559500a63f	517	network_phase(unit);
andrewbonney	0:ec559500a63f	518	}
andrewbonney	0:ec559500a63f	519	}
andrewbonney	0:ec559500a63f	520
andrewbonney	0:ec559500a63f	521	/*
andrewbonney	0:ec559500a63f	522	* Proceed to the network phase.
andrewbonney	0:ec559500a63f	523	*/
andrewbonney	0:ec559500a63f	524	static void
andrewbonney	0:ec559500a63f	525	network_phase(int unit)
andrewbonney	0:ec559500a63f	526	{
andrewbonney	0:ec559500a63f	527	int i;
andrewbonney	0:ec559500a63f	528	struct protent *protp;
andrewbonney	0:ec559500a63f	529	lcp_options *go = &lcp_gotoptions[unit];
andrewbonney	0:ec559500a63f	530
andrewbonney	0:ec559500a63f	531	/*
andrewbonney	0:ec559500a63f	532	* If the peer had to authenticate, run the auth-up script now.
andrewbonney	0:ec559500a63f	533	*/
andrewbonney	0:ec559500a63f	534	if ((go->neg_chap \|\| go->neg_upap) && !did_authup) {
andrewbonney	0:ec559500a63f	535	/* XXX Do setup for peer authentication. */
andrewbonney	0:ec559500a63f	536	did_authup = 1;
andrewbonney	0:ec559500a63f	537	}
andrewbonney	0:ec559500a63f	538
andrewbonney	0:ec559500a63f	539	#if CBCP_SUPPORT
andrewbonney	0:ec559500a63f	540	/*
andrewbonney	0:ec559500a63f	541	* If we negotiated callback, do it now.
andrewbonney	0:ec559500a63f	542	*/
andrewbonney	0:ec559500a63f	543	if (go->neg_cbcp) {
andrewbonney	0:ec559500a63f	544	lcp_phase[unit] = PHASE_CALLBACK;
andrewbonney	0:ec559500a63f	545	(*cbcp_protent.open)(unit);
andrewbonney	0:ec559500a63f	546	return;
andrewbonney	0:ec559500a63f	547	}
andrewbonney	0:ec559500a63f	548	#endif /* CBCP_SUPPORT */
andrewbonney	0:ec559500a63f	549
andrewbonney	0:ec559500a63f	550	lcp_phase[unit] = PHASE_NETWORK;
andrewbonney	0:ec559500a63f	551	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
andrewbonney	0:ec559500a63f	552	if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
andrewbonney	0:ec559500a63f	553	(*protp->open)(unit);
andrewbonney	0:ec559500a63f	554	if (protp->protocol != PPP_CCP) {
andrewbonney	0:ec559500a63f	555	++num_np_open;
andrewbonney	0:ec559500a63f	556	}
andrewbonney	0:ec559500a63f	557	}
andrewbonney	0:ec559500a63f	558	}
andrewbonney	0:ec559500a63f	559
andrewbonney	0:ec559500a63f	560	if (num_np_open == 0) {
andrewbonney	0:ec559500a63f	561	/* nothing to do */
andrewbonney	0:ec559500a63f	562	lcp_close(0, "No network protocols running");
andrewbonney	0:ec559500a63f	563	}
andrewbonney	0:ec559500a63f	564	}
andrewbonney	0:ec559500a63f	565	/* @todo: add void start_networks(void) here (pppd 2.3.11) */
andrewbonney	0:ec559500a63f	566
andrewbonney	0:ec559500a63f	567	/*
andrewbonney	0:ec559500a63f	568	* The peer has failed to authenticate himself using `protocol'.
andrewbonney	0:ec559500a63f	569	*/
andrewbonney	0:ec559500a63f	570	void
andrewbonney	0:ec559500a63f	571	auth_peer_fail(int unit, u16_t protocol)
andrewbonney	0:ec559500a63f	572	{
andrewbonney	0:ec559500a63f	573	LWIP_UNUSED_ARG(protocol);
andrewbonney	0:ec559500a63f	574
andrewbonney	0:ec559500a63f	575	AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
andrewbonney	0:ec559500a63f	576	/*
andrewbonney	0:ec559500a63f	577	* Authentication failure: take the link down
andrewbonney	0:ec559500a63f	578	*/
andrewbonney	0:ec559500a63f	579	lcp_close(unit, "Authentication failed");
andrewbonney	0:ec559500a63f	580	}
andrewbonney	0:ec559500a63f	581
andrewbonney	0:ec559500a63f	582
andrewbonney	0:ec559500a63f	583	#if PAP_SUPPORT \|\| CHAP_SUPPORT
andrewbonney	0:ec559500a63f	584	/*
andrewbonney	0:ec559500a63f	585	* The peer has been successfully authenticated using `protocol'.
andrewbonney	0:ec559500a63f	586	*/
andrewbonney	0:ec559500a63f	587	void
andrewbonney	0:ec559500a63f	588	auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
andrewbonney	0:ec559500a63f	589	{
andrewbonney	0:ec559500a63f	590	int pbit;
andrewbonney	0:ec559500a63f	591
andrewbonney	0:ec559500a63f	592	AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
andrewbonney	0:ec559500a63f	593	switch (protocol) {
andrewbonney	0:ec559500a63f	594	case PPP_CHAP:
andrewbonney	0:ec559500a63f	595	pbit = CHAP_PEER;
andrewbonney	0:ec559500a63f	596	break;
andrewbonney	0:ec559500a63f	597	case PPP_PAP:
andrewbonney	0:ec559500a63f	598	pbit = PAP_PEER;
andrewbonney	0:ec559500a63f	599	break;
andrewbonney	0:ec559500a63f	600	default:
andrewbonney	0:ec559500a63f	601	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
andrewbonney	0:ec559500a63f	602	return;
andrewbonney	0:ec559500a63f	603	}
andrewbonney	0:ec559500a63f	604
andrewbonney	0:ec559500a63f	605	/*
andrewbonney	0:ec559500a63f	606	* Save the authenticated name of the peer for later.
andrewbonney	0:ec559500a63f	607	*/
andrewbonney	0:ec559500a63f	608	if (namelen > (int)sizeof(peer_authname) - 1) {
andrewbonney	0:ec559500a63f	609	namelen = sizeof(peer_authname) - 1;
andrewbonney	0:ec559500a63f	610	}
andrewbonney	0:ec559500a63f	611	BCOPY(name, peer_authname, namelen);
andrewbonney	0:ec559500a63f	612	peer_authname[namelen] = 0;
andrewbonney	0:ec559500a63f	613
andrewbonney	0:ec559500a63f	614	/*
andrewbonney	0:ec559500a63f	615	* If there is no more authentication still to be done,
andrewbonney	0:ec559500a63f	616	* proceed to the network (or callback) phase.
andrewbonney	0:ec559500a63f	617	*/
andrewbonney	0:ec559500a63f	618	if ((auth_pending[unit] &= ~pbit) == 0) {
andrewbonney	0:ec559500a63f	619	network_phase(unit);
andrewbonney	0:ec559500a63f	620	}
andrewbonney	0:ec559500a63f	621	}
andrewbonney	0:ec559500a63f	622
andrewbonney	0:ec559500a63f	623	/*
andrewbonney	0:ec559500a63f	624	* We have failed to authenticate ourselves to the peer using `protocol'.
andrewbonney	0:ec559500a63f	625	*/
andrewbonney	0:ec559500a63f	626	void
andrewbonney	0:ec559500a63f	627	auth_withpeer_fail(int unit, u16_t protocol)
andrewbonney	0:ec559500a63f	628	{
andrewbonney	0:ec559500a63f	629	int errCode = PPPERR_AUTHFAIL;
andrewbonney	0:ec559500a63f	630
andrewbonney	0:ec559500a63f	631	LWIP_UNUSED_ARG(protocol);
andrewbonney	0:ec559500a63f	632
andrewbonney	0:ec559500a63f	633	AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
andrewbonney	0:ec559500a63f	634	if (passwd_from_file) {
andrewbonney	0:ec559500a63f	635	BZERO(ppp_settings.passwd, MAXSECRETLEN);
andrewbonney	0:ec559500a63f	636	}
andrewbonney	0:ec559500a63f	637
andrewbonney	0:ec559500a63f	638	/*
andrewbonney	0:ec559500a63f	639	* We've failed to authenticate ourselves to our peer.
andrewbonney	0:ec559500a63f	640	* He'll probably take the link down, and there's not much
andrewbonney	0:ec559500a63f	641	* we can do except wait for that.
andrewbonney	0:ec559500a63f	642	*/
andrewbonney	0:ec559500a63f	643	pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
andrewbonney	0:ec559500a63f	644	lcp_close(unit, "Failed to authenticate ourselves to peer");
andrewbonney	0:ec559500a63f	645	}
andrewbonney	0:ec559500a63f	646
andrewbonney	0:ec559500a63f	647	/*
andrewbonney	0:ec559500a63f	648	* We have successfully authenticated ourselves with the peer using `protocol'.
andrewbonney	0:ec559500a63f	649	*/
andrewbonney	0:ec559500a63f	650	void
andrewbonney	0:ec559500a63f	651	auth_withpeer_success(int unit, u16_t protocol)
andrewbonney	0:ec559500a63f	652	{
andrewbonney	0:ec559500a63f	653	int pbit;
andrewbonney	0:ec559500a63f	654
andrewbonney	0:ec559500a63f	655	AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
andrewbonney	0:ec559500a63f	656	switch (protocol) {
andrewbonney	0:ec559500a63f	657	case PPP_CHAP:
andrewbonney	0:ec559500a63f	658	pbit = CHAP_WITHPEER;
andrewbonney	0:ec559500a63f	659	break;
andrewbonney	0:ec559500a63f	660	case PPP_PAP:
andrewbonney	0:ec559500a63f	661	if (passwd_from_file) {
andrewbonney	0:ec559500a63f	662	BZERO(ppp_settings.passwd, MAXSECRETLEN);
andrewbonney	0:ec559500a63f	663	}
andrewbonney	0:ec559500a63f	664	pbit = PAP_WITHPEER;
andrewbonney	0:ec559500a63f	665	break;
andrewbonney	0:ec559500a63f	666	default:
andrewbonney	0:ec559500a63f	667	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
andrewbonney	0:ec559500a63f	668	pbit = 0;
andrewbonney	0:ec559500a63f	669	}
andrewbonney	0:ec559500a63f	670
andrewbonney	0:ec559500a63f	671	/*
andrewbonney	0:ec559500a63f	672	* If there is no more authentication still being done,
andrewbonney	0:ec559500a63f	673	* proceed to the network (or callback) phase.
andrewbonney	0:ec559500a63f	674	*/
andrewbonney	0:ec559500a63f	675	if ((auth_pending[unit] &= ~pbit) == 0) {
andrewbonney	0:ec559500a63f	676	network_phase(unit);
andrewbonney	0:ec559500a63f	677	}
andrewbonney	0:ec559500a63f	678	}
andrewbonney	0:ec559500a63f	679	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	680
andrewbonney	0:ec559500a63f	681
andrewbonney	0:ec559500a63f	682	/*
andrewbonney	0:ec559500a63f	683	* np_up - a network protocol has come up.
andrewbonney	0:ec559500a63f	684	*/
andrewbonney	0:ec559500a63f	685	void
andrewbonney	0:ec559500a63f	686	np_up(int unit, u16_t proto)
andrewbonney	0:ec559500a63f	687	{
andrewbonney	0:ec559500a63f	688	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	689	LWIP_UNUSED_ARG(proto);
andrewbonney	0:ec559500a63f	690
andrewbonney	0:ec559500a63f	691	AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
andrewbonney	0:ec559500a63f	692	if (num_np_up == 0) {
andrewbonney	0:ec559500a63f	693	AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
andrewbonney	0:ec559500a63f	694	/*
andrewbonney	0:ec559500a63f	695	* At this point we consider that the link has come up successfully.
andrewbonney	0:ec559500a63f	696	*/
andrewbonney	0:ec559500a63f	697	if (ppp_settings.idle_time_limit > 0) {
andrewbonney	0:ec559500a63f	698	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
andrewbonney	0:ec559500a63f	699	}
andrewbonney	0:ec559500a63f	700
andrewbonney	0:ec559500a63f	701	/*
andrewbonney	0:ec559500a63f	702	* Set a timeout to close the connection once the maximum
andrewbonney	0:ec559500a63f	703	* connect time has expired.
andrewbonney	0:ec559500a63f	704	*/
andrewbonney	0:ec559500a63f	705	if (ppp_settings.maxconnect > 0) {
andrewbonney	0:ec559500a63f	706	TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
andrewbonney	0:ec559500a63f	707	}
andrewbonney	0:ec559500a63f	708	}
andrewbonney	0:ec559500a63f	709	++num_np_up;
andrewbonney	0:ec559500a63f	710	}
andrewbonney	0:ec559500a63f	711
andrewbonney	0:ec559500a63f	712	/*
andrewbonney	0:ec559500a63f	713	* np_down - a network protocol has gone down.
andrewbonney	0:ec559500a63f	714	*/
andrewbonney	0:ec559500a63f	715	void
andrewbonney	0:ec559500a63f	716	np_down(int unit, u16_t proto)
andrewbonney	0:ec559500a63f	717	{
andrewbonney	0:ec559500a63f	718	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	719	LWIP_UNUSED_ARG(proto);
andrewbonney	0:ec559500a63f	720
andrewbonney	0:ec559500a63f	721	AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
andrewbonney	0:ec559500a63f	722	if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
andrewbonney	0:ec559500a63f	723	UNTIMEOUT(check_idle, NULL);
andrewbonney	0:ec559500a63f	724	}
andrewbonney	0:ec559500a63f	725	}
andrewbonney	0:ec559500a63f	726
andrewbonney	0:ec559500a63f	727	/*
andrewbonney	0:ec559500a63f	728	* np_finished - a network protocol has finished using the link.
andrewbonney	0:ec559500a63f	729	*/
andrewbonney	0:ec559500a63f	730	void
andrewbonney	0:ec559500a63f	731	np_finished(int unit, u16_t proto)
andrewbonney	0:ec559500a63f	732	{
andrewbonney	0:ec559500a63f	733	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	734	LWIP_UNUSED_ARG(proto);
andrewbonney	0:ec559500a63f	735
andrewbonney	0:ec559500a63f	736	AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
andrewbonney	0:ec559500a63f	737	if (--num_np_open <= 0) {
andrewbonney	0:ec559500a63f	738	/* no further use for the link: shut up shop. */
andrewbonney	0:ec559500a63f	739	lcp_close(0, "No network protocols running");
andrewbonney	0:ec559500a63f	740	}
andrewbonney	0:ec559500a63f	741	}
andrewbonney	0:ec559500a63f	742
andrewbonney	0:ec559500a63f	743	/*
andrewbonney	0:ec559500a63f	744	* check_idle - check whether the link has been idle for long
andrewbonney	0:ec559500a63f	745	* enough that we can shut it down.
andrewbonney	0:ec559500a63f	746	*/
andrewbonney	0:ec559500a63f	747	static void
andrewbonney	0:ec559500a63f	748	check_idle(void *arg)
andrewbonney	0:ec559500a63f	749	{
andrewbonney	0:ec559500a63f	750	struct ppp_idle idle;
andrewbonney	0:ec559500a63f	751	u_short itime;
andrewbonney	0:ec559500a63f	752
andrewbonney	0:ec559500a63f	753	LWIP_UNUSED_ARG(arg);
andrewbonney	0:ec559500a63f	754	if (!get_idle_time(0, &idle)) {
andrewbonney	0:ec559500a63f	755	return;
andrewbonney	0:ec559500a63f	756	}
andrewbonney	0:ec559500a63f	757	itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
andrewbonney	0:ec559500a63f	758	if (itime >= ppp_settings.idle_time_limit) {
andrewbonney	0:ec559500a63f	759	/* link is idle: shut it down. */
andrewbonney	0:ec559500a63f	760	AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
andrewbonney	0:ec559500a63f	761	lcp_close(0, "Link inactive");
andrewbonney	0:ec559500a63f	762	} else {
andrewbonney	0:ec559500a63f	763	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
andrewbonney	0:ec559500a63f	764	}
andrewbonney	0:ec559500a63f	765	}
andrewbonney	0:ec559500a63f	766
andrewbonney	0:ec559500a63f	767	/*
andrewbonney	0:ec559500a63f	768	* connect_time_expired - log a message and close the connection.
andrewbonney	0:ec559500a63f	769	*/
andrewbonney	0:ec559500a63f	770	static void
andrewbonney	0:ec559500a63f	771	connect_time_expired(void *arg)
andrewbonney	0:ec559500a63f	772	{
andrewbonney	0:ec559500a63f	773	LWIP_UNUSED_ARG(arg);
andrewbonney	0:ec559500a63f	774
andrewbonney	0:ec559500a63f	775	AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
andrewbonney	0:ec559500a63f	776	lcp_close(0, "Connect time expired"); /* Close connection */
andrewbonney	0:ec559500a63f	777	}
andrewbonney	0:ec559500a63f	778
andrewbonney	0:ec559500a63f	779	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	780	/*
andrewbonney	0:ec559500a63f	781	* auth_check_options - called to check authentication options.
andrewbonney	0:ec559500a63f	782	*/
andrewbonney	0:ec559500a63f	783	void
andrewbonney	0:ec559500a63f	784	auth_check_options(void)
andrewbonney	0:ec559500a63f	785	{
andrewbonney	0:ec559500a63f	786	lcp_options *wo = &lcp_wantoptions[0];
andrewbonney	0:ec559500a63f	787	int can_auth;
andrewbonney	0:ec559500a63f	788	ipcp_options *ipwo = &ipcp_wantoptions[0];
andrewbonney	0:ec559500a63f	789	u32_t remote;
andrewbonney	0:ec559500a63f	790
andrewbonney	0:ec559500a63f	791	/* Default our_name to hostname, and user to our_name */
andrewbonney	0:ec559500a63f	792	if (ppp_settings.our_name[0] == 0 \|\| ppp_settings.usehostname) {
andrewbonney	0:ec559500a63f	793	strcpy(ppp_settings.our_name, ppp_settings.hostname);
andrewbonney	0:ec559500a63f	794	}
andrewbonney	0:ec559500a63f	795
andrewbonney	0:ec559500a63f	796	if (ppp_settings.user[0] == 0) {
andrewbonney	0:ec559500a63f	797	strcpy(ppp_settings.user, ppp_settings.our_name);
andrewbonney	0:ec559500a63f	798	}
andrewbonney	0:ec559500a63f	799
andrewbonney	0:ec559500a63f	800	/* If authentication is required, ask peer for CHAP or PAP. */
andrewbonney	0:ec559500a63f	801	if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
andrewbonney	0:ec559500a63f	802	wo->neg_chap = 1;
andrewbonney	0:ec559500a63f	803	wo->neg_upap = 1;
andrewbonney	0:ec559500a63f	804	}
andrewbonney	0:ec559500a63f	805
andrewbonney	0:ec559500a63f	806	/*
andrewbonney	0:ec559500a63f	807	* Check whether we have appropriate secrets to use
andrewbonney	0:ec559500a63f	808	* to authenticate the peer.
andrewbonney	0:ec559500a63f	809	*/
andrewbonney	0:ec559500a63f	810	can_auth = wo->neg_upap && have_pap_secret();
andrewbonney	0:ec559500a63f	811	if (!can_auth && wo->neg_chap) {
andrewbonney	0:ec559500a63f	812	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
andrewbonney	0:ec559500a63f	813	can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
andrewbonney	0:ec559500a63f	814	}
andrewbonney	0:ec559500a63f	815
andrewbonney	0:ec559500a63f	816	if (ppp_settings.auth_required && !can_auth) {
andrewbonney	0:ec559500a63f	817	ppp_panic("No auth secret");
andrewbonney	0:ec559500a63f	818	}
andrewbonney	0:ec559500a63f	819	}
andrewbonney	0:ec559500a63f	820	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	821
andrewbonney	0:ec559500a63f	822	/*
andrewbonney	0:ec559500a63f	823	* auth_reset - called when LCP is starting negotiations to recheck
andrewbonney	0:ec559500a63f	824	* authentication options, i.e. whether we have appropriate secrets
andrewbonney	0:ec559500a63f	825	* to use for authenticating ourselves and/or the peer.
andrewbonney	0:ec559500a63f	826	*/
andrewbonney	0:ec559500a63f	827	void
andrewbonney	0:ec559500a63f	828	auth_reset(int unit)
andrewbonney	0:ec559500a63f	829	{
andrewbonney	0:ec559500a63f	830	lcp_options *go = &lcp_gotoptions[unit];
andrewbonney	0:ec559500a63f	831	lcp_options *ao = &lcp_allowoptions[0];
andrewbonney	0:ec559500a63f	832	ipcp_options *ipwo = &ipcp_wantoptions[0];
andrewbonney	0:ec559500a63f	833	u32_t remote;
andrewbonney	0:ec559500a63f	834
andrewbonney	0:ec559500a63f	835	AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
andrewbonney	0:ec559500a63f	836	ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 \|\| get_pap_passwd(unit, NULL, NULL));
andrewbonney	0:ec559500a63f	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)/;
andrewbonney	0:ec559500a63f	838
andrewbonney	0:ec559500a63f	839	if (go->neg_upap && !have_pap_secret()) {
andrewbonney	0:ec559500a63f	840	go->neg_upap = 0;
andrewbonney	0:ec559500a63f	841	}
andrewbonney	0:ec559500a63f	842	if (go->neg_chap) {
andrewbonney	0:ec559500a63f	843	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
andrewbonney	0:ec559500a63f	844	if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
andrewbonney	0:ec559500a63f	845	go->neg_chap = 0;
andrewbonney	0:ec559500a63f	846	}
andrewbonney	0:ec559500a63f	847	}
andrewbonney	0:ec559500a63f	848	}
andrewbonney	0:ec559500a63f	849
andrewbonney	0:ec559500a63f	850	#if PAP_SUPPORT
andrewbonney	0:ec559500a63f	851	/*
andrewbonney	0:ec559500a63f	852	* check_passwd - Check the user name and passwd against the PAP secrets
andrewbonney	0:ec559500a63f	853	* file. If requested, also check against the system password database,
andrewbonney	0:ec559500a63f	854	* and login the user if OK.
andrewbonney	0:ec559500a63f	855	*
andrewbonney	0:ec559500a63f	856	* returns:
andrewbonney	0:ec559500a63f	857	* UPAP_AUTHNAK: Authentication failed.
andrewbonney	0:ec559500a63f	858	* UPAP_AUTHACK: Authentication succeeded.
andrewbonney	0:ec559500a63f	859	* In either case, msg points to an appropriate message.
andrewbonney	0:ec559500a63f	860	*/
andrewbonney	0:ec559500a63f	861	u_char
andrewbonney	0:ec559500a63f	862	check_passwd( int unit, char auser, int userlen, char apasswd, int passwdlen, char *msg, int msglen)
andrewbonney	0:ec559500a63f	863	{
andrewbonney	0:ec559500a63f	864	#if 1 /* XXX Assume all entries OK. */
andrewbonney	0:ec559500a63f	865	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	866	LWIP_UNUSED_ARG(auser);
andrewbonney	0:ec559500a63f	867	LWIP_UNUSED_ARG(userlen);
andrewbonney	0:ec559500a63f	868	LWIP_UNUSED_ARG(apasswd);
andrewbonney	0:ec559500a63f	869	LWIP_UNUSED_ARG(passwdlen);
andrewbonney	0:ec559500a63f	870	LWIP_UNUSED_ARG(msglen);
andrewbonney	0:ec559500a63f	871	msg = (char ) 0;
andrewbonney	0:ec559500a63f	872	return UPAP_AUTHACK; /* XXX Assume all entries OK. */
andrewbonney	0:ec559500a63f	873	#else
andrewbonney	0:ec559500a63f	874	u_char ret = 0;
andrewbonney	0:ec559500a63f	875	struct wordlist *addrs = NULL;
andrewbonney	0:ec559500a63f	876	char passwd[256], user[256];
andrewbonney	0:ec559500a63f	877	char secret[MAXWORDLEN];
andrewbonney	0:ec559500a63f	878	static u_short attempts = 0;
andrewbonney	0:ec559500a63f	879
andrewbonney	0:ec559500a63f	880	/*
andrewbonney	0:ec559500a63f	881	* Make copies of apasswd and auser, then null-terminate them.
andrewbonney	0:ec559500a63f	882	*/
andrewbonney	0:ec559500a63f	883	BCOPY(apasswd, passwd, passwdlen);
andrewbonney	0:ec559500a63f	884	passwd[passwdlen] = '\0';
andrewbonney	0:ec559500a63f	885	BCOPY(auser, user, userlen);
andrewbonney	0:ec559500a63f	886	user[userlen] = '\0';
andrewbonney	0:ec559500a63f	887	msg = (char ) 0;
andrewbonney	0:ec559500a63f	888
andrewbonney	0:ec559500a63f	889	/* XXX Validate user name and password. */
andrewbonney	0:ec559500a63f	890	ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
andrewbonney	0:ec559500a63f	891
andrewbonney	0:ec559500a63f	892	if (ret == UPAP_AUTHNAK) {
andrewbonney	0:ec559500a63f	893	if (msg == (char ) 0) {
andrewbonney	0:ec559500a63f	894	*msg = "Login incorrect";
andrewbonney	0:ec559500a63f	895	}
andrewbonney	0:ec559500a63f	896	msglen = strlen(msg);
andrewbonney	0:ec559500a63f	897	/*
andrewbonney	0:ec559500a63f	898	* Frustrate passwd stealer programs.
andrewbonney	0:ec559500a63f	899	* Allow 10 tries, but start backing off after 3 (stolen from login).
andrewbonney	0:ec559500a63f	900	* On 10'th, drop the connection.
andrewbonney	0:ec559500a63f	901	*/
andrewbonney	0:ec559500a63f	902	if (attempts++ >= 10) {
andrewbonney	0:ec559500a63f	903	AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
andrewbonney	0:ec559500a63f	904	/ppp_panic("Excess Bad Logins");/
andrewbonney	0:ec559500a63f	905	}
andrewbonney	0:ec559500a63f	906	if (attempts > 3) {
andrewbonney	0:ec559500a63f	907	/* @todo: this was sleep(), i.e. seconds, not milliseconds
andrewbonney	0:ec559500a63f	908	* I don't think we really need this in lwIP - we would block tcpip_thread!
andrewbonney	0:ec559500a63f	909	*/
andrewbonney	0:ec559500a63f	910	/sys_msleep((attempts - 3) 5);*/
andrewbonney	0:ec559500a63f	911	}
andrewbonney	0:ec559500a63f	912	if (addrs != NULL) {
andrewbonney	0:ec559500a63f	913	free_wordlist(addrs);
andrewbonney	0:ec559500a63f	914	}
andrewbonney	0:ec559500a63f	915	} else {
andrewbonney	0:ec559500a63f	916	attempts = 0; /* Reset count */
andrewbonney	0:ec559500a63f	917	if (msg == (char ) 0) {
andrewbonney	0:ec559500a63f	918	*msg = "Login ok";
andrewbonney	0:ec559500a63f	919	}
andrewbonney	0:ec559500a63f	920	msglen = strlen(msg);
andrewbonney	0:ec559500a63f	921	set_allowed_addrs(unit, addrs);
andrewbonney	0:ec559500a63f	922	}
andrewbonney	0:ec559500a63f	923
andrewbonney	0:ec559500a63f	924	BZERO(passwd, sizeof(passwd));
andrewbonney	0:ec559500a63f	925	BZERO(secret, sizeof(secret));
andrewbonney	0:ec559500a63f	926
andrewbonney	0:ec559500a63f	927	return ret;
andrewbonney	0:ec559500a63f	928	#endif
andrewbonney	0:ec559500a63f	929	}
andrewbonney	0:ec559500a63f	930	#endif /* PAP_SUPPORT */
andrewbonney	0:ec559500a63f	931
andrewbonney	0:ec559500a63f	932	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	933	/*
andrewbonney	0:ec559500a63f	934	* This function is needed for PAM.
andrewbonney	0:ec559500a63f	935	*/
andrewbonney	0:ec559500a63f	936
andrewbonney	0:ec559500a63f	937	#ifdef USE_PAM
andrewbonney	0:ec559500a63f	938
andrewbonney	0:ec559500a63f	939	/* lwip does not support PAM*/
andrewbonney	0:ec559500a63f	940
andrewbonney	0:ec559500a63f	941	#endif /* USE_PAM */
andrewbonney	0:ec559500a63f	942
andrewbonney	0:ec559500a63f	943	#endif /* UNUSED */
andrewbonney	0:ec559500a63f	944
andrewbonney	0:ec559500a63f	945
andrewbonney	0:ec559500a63f	946	#if 0 /* UNUSED */
andrewbonney	0:ec559500a63f	947	/*
andrewbonney	0:ec559500a63f	948	* plogin - Check the user name and password against the system
andrewbonney	0:ec559500a63f	949	* password database, and login the user if OK.
andrewbonney	0:ec559500a63f	950	*
andrewbonney	0:ec559500a63f	951	* returns:
andrewbonney	0:ec559500a63f	952	* UPAP_AUTHNAK: Login failed.
andrewbonney	0:ec559500a63f	953	* UPAP_AUTHACK: Login succeeded.
andrewbonney	0:ec559500a63f	954	* In either case, msg points to an appropriate message.
andrewbonney	0:ec559500a63f	955	*/
andrewbonney	0:ec559500a63f	956	static int
andrewbonney	0:ec559500a63f	957	plogin(char user, char passwd, char *msg, int msglen)
andrewbonney	0:ec559500a63f	958	{
andrewbonney	0:ec559500a63f	959
andrewbonney	0:ec559500a63f	960	LWIP_UNUSED_ARG(user);
andrewbonney	0:ec559500a63f	961	LWIP_UNUSED_ARG(passwd);
andrewbonney	0:ec559500a63f	962	LWIP_UNUSED_ARG(msg);
andrewbonney	0:ec559500a63f	963	LWIP_UNUSED_ARG(msglen);
andrewbonney	0:ec559500a63f	964
andrewbonney	0:ec559500a63f	965
andrewbonney	0:ec559500a63f	966	/* The new lines are here align the file when
andrewbonney	0:ec559500a63f	967	* compared against the pppd 2.3.11 code */
andrewbonney	0:ec559500a63f	968
andrewbonney	0:ec559500a63f	969
andrewbonney	0:ec559500a63f	970
andrewbonney	0:ec559500a63f	971
andrewbonney	0:ec559500a63f	972
andrewbonney	0:ec559500a63f	973
andrewbonney	0:ec559500a63f	974
andrewbonney	0:ec559500a63f	975
andrewbonney	0:ec559500a63f	976
andrewbonney	0:ec559500a63f	977
andrewbonney	0:ec559500a63f	978
andrewbonney	0:ec559500a63f	979
andrewbonney	0:ec559500a63f	980
andrewbonney	0:ec559500a63f	981
andrewbonney	0:ec559500a63f	982
andrewbonney	0:ec559500a63f	983
andrewbonney	0:ec559500a63f	984	/* XXX Fail until we decide that we want to support logins. */
andrewbonney	0:ec559500a63f	985	return (UPAP_AUTHNAK);
andrewbonney	0:ec559500a63f	986	}
andrewbonney	0:ec559500a63f	987	#endif
andrewbonney	0:ec559500a63f	988
andrewbonney	0:ec559500a63f	989
andrewbonney	0:ec559500a63f	990
andrewbonney	0:ec559500a63f	991	/*
andrewbonney	0:ec559500a63f	992	* plogout - Logout the user.
andrewbonney	0:ec559500a63f	993	*/
andrewbonney	0:ec559500a63f	994	static void
andrewbonney	0:ec559500a63f	995	plogout(void)
andrewbonney	0:ec559500a63f	996	{
andrewbonney	0:ec559500a63f	997	logged_in = 0;
andrewbonney	0:ec559500a63f	998	}
andrewbonney	0:ec559500a63f	999
andrewbonney	0:ec559500a63f	1000	/*
andrewbonney	0:ec559500a63f	1001	* null_login - Check if a username of "" and a password of "" are
andrewbonney	0:ec559500a63f	1002	* acceptable, and iff so, set the list of acceptable IP addresses
andrewbonney	0:ec559500a63f	1003	* and return 1.
andrewbonney	0:ec559500a63f	1004	*/
andrewbonney	0:ec559500a63f	1005	static int
andrewbonney	0:ec559500a63f	1006	null_login(int unit)
andrewbonney	0:ec559500a63f	1007	{
andrewbonney	0:ec559500a63f	1008	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	1009	/* XXX Fail until we decide that we want to support logins. */
andrewbonney	0:ec559500a63f	1010	return 0;
andrewbonney	0:ec559500a63f	1011	}
andrewbonney	0:ec559500a63f	1012
andrewbonney	0:ec559500a63f	1013
andrewbonney	0:ec559500a63f	1014	/*
andrewbonney	0:ec559500a63f	1015	* get_pap_passwd - get a password for authenticating ourselves with
andrewbonney	0:ec559500a63f	1016	* our peer using PAP. Returns 1 on success, 0 if no suitable password
andrewbonney	0:ec559500a63f	1017	* could be found.
andrewbonney	0:ec559500a63f	1018	*/
andrewbonney	0:ec559500a63f	1019	static int
andrewbonney	0:ec559500a63f	1020	get_pap_passwd(int unit, char user, char passwd)
andrewbonney	0:ec559500a63f	1021	{
andrewbonney	0:ec559500a63f	1022	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	1023	/* normally we would reject PAP if no password is provided,
andrewbonney	0:ec559500a63f	1024	but this causes problems with some providers (like CHT in Taiwan)
andrewbonney	0:ec559500a63f	1025	who incorrectly request PAP and expect a bogus/empty password, so
andrewbonney	0:ec559500a63f	1026	always provide a default user/passwd of "none"/"none"
andrewbonney	0:ec559500a63f	1027
andrewbonney	0:ec559500a63f	1028	@todo: This should be configured by the user, instead of being hardcoded here!
andrewbonney	0:ec559500a63f	1029	*/
andrewbonney	0:ec559500a63f	1030	if(user) {
andrewbonney	0:ec559500a63f	1031	strcpy(user, "none");
andrewbonney	0:ec559500a63f	1032	}
andrewbonney	0:ec559500a63f	1033	if(passwd) {
andrewbonney	0:ec559500a63f	1034	strcpy(passwd, "none");
andrewbonney	0:ec559500a63f	1035	}
andrewbonney	0:ec559500a63f	1036	return 1;
andrewbonney	0:ec559500a63f	1037	}
andrewbonney	0:ec559500a63f	1038
andrewbonney	0:ec559500a63f	1039	/*
andrewbonney	0:ec559500a63f	1040	* have_pap_secret - check whether we have a PAP file with any
andrewbonney	0:ec559500a63f	1041	* secrets that we could possibly use for authenticating the peer.
andrewbonney	0:ec559500a63f	1042	*/
andrewbonney	0:ec559500a63f	1043	static int
andrewbonney	0:ec559500a63f	1044	have_pap_secret(void)
andrewbonney	0:ec559500a63f	1045	{
andrewbonney	0:ec559500a63f	1046	/* XXX Fail until we set up our passwords. */
andrewbonney	0:ec559500a63f	1047	return 0;
andrewbonney	0:ec559500a63f	1048	}
andrewbonney	0:ec559500a63f	1049
andrewbonney	0:ec559500a63f	1050	/*
andrewbonney	0:ec559500a63f	1051	* have_chap_secret - check whether we have a CHAP file with a
andrewbonney	0:ec559500a63f	1052	* secret that we could possibly use for authenticating `client'
andrewbonney	0:ec559500a63f	1053	* on `server'. Either can be the null string, meaning we don't
andrewbonney	0:ec559500a63f	1054	* know the identity yet.
andrewbonney	0:ec559500a63f	1055	*/
andrewbonney	0:ec559500a63f	1056	static int
andrewbonney	0:ec559500a63f	1057	have_chap_secret(char client, char server, u32_t remote)
andrewbonney	0:ec559500a63f	1058	{
andrewbonney	0:ec559500a63f	1059	LWIP_UNUSED_ARG(client);
andrewbonney	0:ec559500a63f	1060	LWIP_UNUSED_ARG(server);
andrewbonney	0:ec559500a63f	1061	LWIP_UNUSED_ARG(remote);
andrewbonney	0:ec559500a63f	1062
andrewbonney	0:ec559500a63f	1063	/* XXX Fail until we set up our passwords. */
andrewbonney	0:ec559500a63f	1064	return 0;
andrewbonney	0:ec559500a63f	1065	}
andrewbonney	0:ec559500a63f	1066	#if CHAP_SUPPORT
andrewbonney	0:ec559500a63f	1067
andrewbonney	0:ec559500a63f	1068	/*
andrewbonney	0:ec559500a63f	1069	* get_secret - open the CHAP secret file and return the secret
andrewbonney	0:ec559500a63f	1070	* for authenticating the given client on the given server.
andrewbonney	0:ec559500a63f	1071	* (We could be either client or server).
andrewbonney	0:ec559500a63f	1072	*/
andrewbonney	0:ec559500a63f	1073	int
andrewbonney	0:ec559500a63f	1074	get_secret(int unit, char client, char server, char secret, int secret_len, int save_addrs)
andrewbonney	0:ec559500a63f	1075	{
andrewbonney	0:ec559500a63f	1076	#if 1
andrewbonney	0:ec559500a63f	1077	int len;
andrewbonney	0:ec559500a63f	1078	struct wordlist *addrs;
andrewbonney	0:ec559500a63f	1079
andrewbonney	0:ec559500a63f	1080	LWIP_UNUSED_ARG(unit);
andrewbonney	0:ec559500a63f	1081	LWIP_UNUSED_ARG(server);
andrewbonney	0:ec559500a63f	1082	LWIP_UNUSED_ARG(save_addrs);
andrewbonney	0:ec559500a63f	1083
andrewbonney	0:ec559500a63f	1084	addrs = NULL;
andrewbonney	0:ec559500a63f	1085
andrewbonney	0:ec559500a63f	1086	if(!client \|\| !client[0] \|\| strcmp(client, ppp_settings.user)) {
andrewbonney	0:ec559500a63f	1087	return 0;
andrewbonney	0:ec559500a63f	1088	}
andrewbonney	0:ec559500a63f	1089
andrewbonney	0:ec559500a63f	1090	len = (int)strlen(ppp_settings.passwd);
andrewbonney	0:ec559500a63f	1091	if (len > MAXSECRETLEN) {
andrewbonney	0:ec559500a63f	1092	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
andrewbonney	0:ec559500a63f	1093	len = MAXSECRETLEN;
andrewbonney	0:ec559500a63f	1094	}
andrewbonney	0:ec559500a63f	1095
andrewbonney	0:ec559500a63f	1096	BCOPY(ppp_settings.passwd, secret, len);
andrewbonney	0:ec559500a63f	1097	*secret_len = len;
andrewbonney	0:ec559500a63f	1098
andrewbonney	0:ec559500a63f	1099	return 1;
andrewbonney	0:ec559500a63f	1100	#else
andrewbonney	0:ec559500a63f	1101	int ret = 0, len;
andrewbonney	0:ec559500a63f	1102	struct wordlist *addrs;
andrewbonney	0:ec559500a63f	1103	char secbuf[MAXWORDLEN];
andrewbonney	0:ec559500a63f	1104
andrewbonney	0:ec559500a63f	1105	addrs = NULL;
andrewbonney	0:ec559500a63f	1106	secbuf[0] = 0;
andrewbonney	0:ec559500a63f	1107
andrewbonney	0:ec559500a63f	1108	/* XXX Find secret. */
andrewbonney	0:ec559500a63f	1109	if (ret < 0) {
andrewbonney	0:ec559500a63f	1110	return 0;
andrewbonney	0:ec559500a63f	1111	}
andrewbonney	0:ec559500a63f	1112
andrewbonney	0:ec559500a63f	1113	if (save_addrs) {
andrewbonney	0:ec559500a63f	1114	set_allowed_addrs(unit, addrs);
andrewbonney	0:ec559500a63f	1115	}
andrewbonney	0:ec559500a63f	1116
andrewbonney	0:ec559500a63f	1117	len = strlen(secbuf);
andrewbonney	0:ec559500a63f	1118	if (len > MAXSECRETLEN) {
andrewbonney	0:ec559500a63f	1119	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
andrewbonney	0:ec559500a63f	1120	len = MAXSECRETLEN;
andrewbonney	0:ec559500a63f	1121	}
andrewbonney	0:ec559500a63f	1122
andrewbonney	0:ec559500a63f	1123	BCOPY(secbuf, secret, len);
andrewbonney	0:ec559500a63f	1124	BZERO(secbuf, sizeof(secbuf));
andrewbonney	0:ec559500a63f	1125	*secret_len = len;
andrewbonney	0:ec559500a63f	1126
andrewbonney	0:ec559500a63f	1127	return 1;
andrewbonney	0:ec559500a63f	1128	#endif
andrewbonney	0:ec559500a63f	1129	}
andrewbonney	0:ec559500a63f	1130	#endif /* CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	1131
andrewbonney	0:ec559500a63f	1132
andrewbonney	0:ec559500a63f	1133	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	1134	/*
andrewbonney	0:ec559500a63f	1135	* set_allowed_addrs() - set the list of allowed addresses.
andrewbonney	0:ec559500a63f	1136	*/
andrewbonney	0:ec559500a63f	1137	static void
andrewbonney	0:ec559500a63f	1138	set_allowed_addrs(int unit, struct wordlist *addrs)
andrewbonney	0:ec559500a63f	1139	{
andrewbonney	0:ec559500a63f	1140	if (addresses[unit] != NULL) {
andrewbonney	0:ec559500a63f	1141	free_wordlist(addresses[unit]);
andrewbonney	0:ec559500a63f	1142	}
andrewbonney	0:ec559500a63f	1143	addresses[unit] = addrs;
andrewbonney	0:ec559500a63f	1144
andrewbonney	0:ec559500a63f	1145	#if 0
andrewbonney	0:ec559500a63f	1146	/*
andrewbonney	0:ec559500a63f	1147	* If there's only one authorized address we might as well
andrewbonney	0:ec559500a63f	1148	* ask our peer for that one right away
andrewbonney	0:ec559500a63f	1149	*/
andrewbonney	0:ec559500a63f	1150	if (addrs != NULL && addrs->next == NULL) {
andrewbonney	0:ec559500a63f	1151	char *p = addrs->word;
andrewbonney	0:ec559500a63f	1152	struct ipcp_options *wo = &ipcp_wantoptions[unit];
andrewbonney	0:ec559500a63f	1153	u32_t a;
andrewbonney	0:ec559500a63f	1154	struct hostent *hp;
andrewbonney	0:ec559500a63f	1155
andrewbonney	0:ec559500a63f	1156	if (wo->hisaddr == 0 && p != '!' && p != '-' && strchr(p, '/') == NULL) {
andrewbonney	0:ec559500a63f	1157	hp = gethostbyname(p);
andrewbonney	0:ec559500a63f	1158	if (hp != NULL && hp->h_addrtype == AF_INET) {
andrewbonney	0:ec559500a63f	1159	a = (u32_t )hp->h_addr;
andrewbonney	0:ec559500a63f	1160	} else {
andrewbonney	0:ec559500a63f	1161	a = inet_addr(p);
andrewbonney	0:ec559500a63f	1162	}
andrewbonney	0:ec559500a63f	1163	if (a != (u32_t) -1) {
andrewbonney	0:ec559500a63f	1164	wo->hisaddr = a;
andrewbonney	0:ec559500a63f	1165	}
andrewbonney	0:ec559500a63f	1166	}
andrewbonney	0:ec559500a63f	1167	}
andrewbonney	0:ec559500a63f	1168	#endif
andrewbonney	0:ec559500a63f	1169	}
andrewbonney	0:ec559500a63f	1170	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	1171
andrewbonney	0:ec559500a63f	1172	/*
andrewbonney	0:ec559500a63f	1173	* auth_ip_addr - check whether the peer is authorized to use
andrewbonney	0:ec559500a63f	1174	* a given IP address. Returns 1 if authorized, 0 otherwise.
andrewbonney	0:ec559500a63f	1175	*/
andrewbonney	0:ec559500a63f	1176	int
andrewbonney	0:ec559500a63f	1177	auth_ip_addr(int unit, u32_t addr)
andrewbonney	0:ec559500a63f	1178	{
andrewbonney	0:ec559500a63f	1179	return ip_addr_check(addr, addresses[unit]);
andrewbonney	0:ec559500a63f	1180	}
andrewbonney	0:ec559500a63f	1181
andrewbonney	0:ec559500a63f	1182	static int /* @todo: integrate this funtion into auth_ip_addr()*/
andrewbonney	0:ec559500a63f	1183	ip_addr_check(u32_t addr, struct wordlist *addrs)
andrewbonney	0:ec559500a63f	1184	{
andrewbonney	0:ec559500a63f	1185	/* don't allow loopback or multicast address */
andrewbonney	0:ec559500a63f	1186	if (bad_ip_adrs(addr)) {
andrewbonney	0:ec559500a63f	1187	return 0;
andrewbonney	0:ec559500a63f	1188	}
andrewbonney	0:ec559500a63f	1189
andrewbonney	0:ec559500a63f	1190	if (addrs == NULL) {
andrewbonney	0:ec559500a63f	1191	return !ppp_settings.auth_required; /* no addresses authorized */
andrewbonney	0:ec559500a63f	1192	}
andrewbonney	0:ec559500a63f	1193
andrewbonney	0:ec559500a63f	1194	/* XXX All other addresses allowed. */
andrewbonney	0:ec559500a63f	1195	return 1;
andrewbonney	0:ec559500a63f	1196	}
andrewbonney	0:ec559500a63f	1197
andrewbonney	0:ec559500a63f	1198	/*
andrewbonney	0:ec559500a63f	1199	* bad_ip_adrs - return 1 if the IP address is one we don't want
andrewbonney	0:ec559500a63f	1200	* to use, such as an address in the loopback net or a multicast address.
andrewbonney	0:ec559500a63f	1201	* addr is in network byte order.
andrewbonney	0:ec559500a63f	1202	*/
andrewbonney	0:ec559500a63f	1203	int
andrewbonney	0:ec559500a63f	1204	bad_ip_adrs(u32_t addr)
andrewbonney	0:ec559500a63f	1205	{
andrewbonney	0:ec559500a63f	1206	addr = ntohl(addr);
andrewbonney	0:ec559500a63f	1207	return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
andrewbonney	0:ec559500a63f	1208	\|\| IN_MULTICAST(addr) \|\| IN_BADCLASS(addr);
andrewbonney	0:ec559500a63f	1209	}
andrewbonney	0:ec559500a63f	1210
andrewbonney	0:ec559500a63f	1211	#if 0 /* UNUSED / / PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	1212	/*
andrewbonney	0:ec559500a63f	1213	* some_ip_ok - check a wordlist to see if it authorizes any
andrewbonney	0:ec559500a63f	1214	* IP address(es).
andrewbonney	0:ec559500a63f	1215	*/
andrewbonney	0:ec559500a63f	1216	static int
andrewbonney	0:ec559500a63f	1217	some_ip_ok(struct wordlist *addrs)
andrewbonney	0:ec559500a63f	1218	{
andrewbonney	0:ec559500a63f	1219	for (; addrs != 0; addrs = addrs->next) {
andrewbonney	0:ec559500a63f	1220	if (addrs->word[0] == '-')
andrewbonney	0:ec559500a63f	1221	break;
andrewbonney	0:ec559500a63f	1222	if (addrs->word[0] != '!')
andrewbonney	0:ec559500a63f	1223	return 1; /* some IP address is allowed */
andrewbonney	0:ec559500a63f	1224	}
andrewbonney	0:ec559500a63f	1225	return 0;
andrewbonney	0:ec559500a63f	1226	}
andrewbonney	0:ec559500a63f	1227
andrewbonney	0:ec559500a63f	1228	/*
andrewbonney	0:ec559500a63f	1229	* check_access - complain if a secret file has too-liberal permissions.
andrewbonney	0:ec559500a63f	1230	*/
andrewbonney	0:ec559500a63f	1231	static void
andrewbonney	0:ec559500a63f	1232	check_access(FILE f, char filename)
andrewbonney	0:ec559500a63f	1233	{
andrewbonney	0:ec559500a63f	1234	struct stat sbuf;
andrewbonney	0:ec559500a63f	1235
andrewbonney	0:ec559500a63f	1236	if (fstat(fileno(f), &sbuf) < 0) {
andrewbonney	0:ec559500a63f	1237	warn("cannot stat secret file %s: %m", filename);
andrewbonney	0:ec559500a63f	1238	} else if ((sbuf.st_mode & (S_IRWXG \| S_IRWXO)) != 0) {
andrewbonney	0:ec559500a63f	1239	warn("Warning - secret file %s has world and/or group access",
andrewbonney	0:ec559500a63f	1240	filename);
andrewbonney	0:ec559500a63f	1241	}
andrewbonney	0:ec559500a63f	1242	}
andrewbonney	0:ec559500a63f	1243
andrewbonney	0:ec559500a63f	1244
andrewbonney	0:ec559500a63f	1245	/*
andrewbonney	0:ec559500a63f	1246	* scan_authfile - Scan an authorization file for a secret suitable
andrewbonney	0:ec559500a63f	1247	* for authenticating `client' on `server'. The return value is -1
andrewbonney	0:ec559500a63f	1248	* if no secret is found, otherwise >= 0. The return value has
andrewbonney	0:ec559500a63f	1249	* NONWILD_CLIENT set if the secret didn't have "*" for the client, and
andrewbonney	0:ec559500a63f	1250	* NONWILD_SERVER set if the secret didn't have "*" for the server.
andrewbonney	0:ec559500a63f	1251	* Any following words on the line up to a "--" (i.e. address authorization
andrewbonney	0:ec559500a63f	1252	* info) are placed in a wordlist and returned in *addrs. Any
andrewbonney	0:ec559500a63f	1253	* following words (extra options) are placed in a wordlist and
andrewbonney	0:ec559500a63f	1254	* returned in *opts.
andrewbonney	0:ec559500a63f	1255	* We assume secret is NULL or points to MAXWORDLEN bytes of space.
andrewbonney	0:ec559500a63f	1256	*/
andrewbonney	0:ec559500a63f	1257	static int
andrewbonney	0:ec559500a63f	1258	scan_authfile(FILE f, char client, char server, char secret, struct wordlist addrs, struct wordlist opts, char *filename)
andrewbonney	0:ec559500a63f	1259	{
andrewbonney	0:ec559500a63f	1260	/* We do not (currently) need this in lwip */
andrewbonney	0:ec559500a63f	1261	return 0; /* dummy */
andrewbonney	0:ec559500a63f	1262	}
andrewbonney	0:ec559500a63f	1263	/*
andrewbonney	0:ec559500a63f	1264	* free_wordlist - release memory allocated for a wordlist.
andrewbonney	0:ec559500a63f	1265	*/
andrewbonney	0:ec559500a63f	1266	static void
andrewbonney	0:ec559500a63f	1267	free_wordlist(struct wordlist *wp)
andrewbonney	0:ec559500a63f	1268	{
andrewbonney	0:ec559500a63f	1269	struct wordlist *next;
andrewbonney	0:ec559500a63f	1270
andrewbonney	0:ec559500a63f	1271	while (wp != NULL) {
andrewbonney	0:ec559500a63f	1272	next = wp->next;
andrewbonney	0:ec559500a63f	1273	free(wp);
andrewbonney	0:ec559500a63f	1274	wp = next;
andrewbonney	0:ec559500a63f	1275	}
andrewbonney	0:ec559500a63f	1276	}
andrewbonney	0:ec559500a63f	1277
andrewbonney	0:ec559500a63f	1278	/*
andrewbonney	0:ec559500a63f	1279	* auth_script_done - called when the auth-up or auth-down script
andrewbonney	0:ec559500a63f	1280	* has finished.
andrewbonney	0:ec559500a63f	1281	*/
andrewbonney	0:ec559500a63f	1282	static void
andrewbonney	0:ec559500a63f	1283	auth_script_done(void *arg)
andrewbonney	0:ec559500a63f	1284	{
andrewbonney	0:ec559500a63f	1285	auth_script_pid = 0;
andrewbonney	0:ec559500a63f	1286	switch (auth_script_state) {
andrewbonney	0:ec559500a63f	1287	case s_up:
andrewbonney	0:ec559500a63f	1288	if (auth_state == s_down) {
andrewbonney	0:ec559500a63f	1289	auth_script_state = s_down;
andrewbonney	0:ec559500a63f	1290	auth_script(_PATH_AUTHDOWN);
andrewbonney	0:ec559500a63f	1291	}
andrewbonney	0:ec559500a63f	1292	break;
andrewbonney	0:ec559500a63f	1293	case s_down:
andrewbonney	0:ec559500a63f	1294	if (auth_state == s_up) {
andrewbonney	0:ec559500a63f	1295	auth_script_state = s_up;
andrewbonney	0:ec559500a63f	1296	auth_script(_PATH_AUTHUP);
andrewbonney	0:ec559500a63f	1297	}
andrewbonney	0:ec559500a63f	1298	break;
andrewbonney	0:ec559500a63f	1299	}
andrewbonney	0:ec559500a63f	1300	}
andrewbonney	0:ec559500a63f	1301
andrewbonney	0:ec559500a63f	1302	/*
andrewbonney	0:ec559500a63f	1303	* auth_script - execute a script with arguments
andrewbonney	0:ec559500a63f	1304	* interface-name peer-name real-user tty speed
andrewbonney	0:ec559500a63f	1305	*/
andrewbonney	0:ec559500a63f	1306	static void
andrewbonney	0:ec559500a63f	1307	auth_script(char *script)
andrewbonney	0:ec559500a63f	1308	{
andrewbonney	0:ec559500a63f	1309	char strspeed[32];
andrewbonney	0:ec559500a63f	1310	struct passwd *pw;
andrewbonney	0:ec559500a63f	1311	char struid[32];
andrewbonney	0:ec559500a63f	1312	char *user_name;
andrewbonney	0:ec559500a63f	1313	char *argv[8];
andrewbonney	0:ec559500a63f	1314
andrewbonney	0:ec559500a63f	1315	if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
andrewbonney	0:ec559500a63f	1316	user_name = pw->pw_name;
andrewbonney	0:ec559500a63f	1317	else {
andrewbonney	0:ec559500a63f	1318	slprintf(struid, sizeof(struid), "%d", getuid());
andrewbonney	0:ec559500a63f	1319	user_name = struid;
andrewbonney	0:ec559500a63f	1320	}
andrewbonney	0:ec559500a63f	1321	slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
andrewbonney	0:ec559500a63f	1322
andrewbonney	0:ec559500a63f	1323	argv[0] = script;
andrewbonney	0:ec559500a63f	1324	argv[1] = ifname;
andrewbonney	0:ec559500a63f	1325	argv[2] = peer_authname;
andrewbonney	0:ec559500a63f	1326	argv[3] = user_name;
andrewbonney	0:ec559500a63f	1327	argv[4] = devnam;
andrewbonney	0:ec559500a63f	1328	argv[5] = strspeed;
andrewbonney	0:ec559500a63f	1329	argv[6] = NULL;
andrewbonney	0:ec559500a63f	1330
andrewbonney	0:ec559500a63f	1331	auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
andrewbonney	0:ec559500a63f	1332	}
andrewbonney	0:ec559500a63f	1333	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
andrewbonney	0:ec559500a63f	1334	#endif /* PPP_SUPPORT */

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Type:	Library
Created:	08 Apr 2011
Imports:	86
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	3

lwip/netif/ppp/auth.c@0:ec559500a63f, 2011-04-08 (annotated)

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