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This library is stripped down version of NetServices library. HTTP server and client function is NOT supported.

lwip/netif/ppp/auth.c@0:dcf3c92487ca, 2011-07-20 (annotated)

Committer:: idinor
Date:: Wed Jul 20 11:45:39 2011 +0000
Revision:: 0:dcf3c92487ca

Who changed what in which revision?

User	Revision	Line number	New contents of line
idinor	0:dcf3c92487ca	1	/*****************************************************************************
idinor	0:dcf3c92487ca	2	* auth.c - Network Authentication and Phase Control program file.
idinor	0:dcf3c92487ca	3	*
idinor	0:dcf3c92487ca	4	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
idinor	0:dcf3c92487ca	5	* Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
idinor	0:dcf3c92487ca	6	*
idinor	0:dcf3c92487ca	7	* The authors hereby grant permission to use, copy, modify, distribute,
idinor	0:dcf3c92487ca	8	* and license this software and its documentation for any purpose, provided
idinor	0:dcf3c92487ca	9	* that existing copyright notices are retained in all copies and that this
idinor	0:dcf3c92487ca	10	* notice and the following disclaimer are included verbatim in any
idinor	0:dcf3c92487ca	11	* distributions. No written agreement, license, or royalty fee is required
idinor	0:dcf3c92487ca	12	* for any of the authorized uses.
idinor	0:dcf3c92487ca	13	*
idinor	0:dcf3c92487ca	14	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
idinor	0:dcf3c92487ca	15	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
idinor	0:dcf3c92487ca	16	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
idinor	0:dcf3c92487ca	17	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
idinor	0:dcf3c92487ca	18	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
idinor	0:dcf3c92487ca	19	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
idinor	0:dcf3c92487ca	20	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
idinor	0:dcf3c92487ca	21	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
idinor	0:dcf3c92487ca	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
idinor	0:dcf3c92487ca	23	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
idinor	0:dcf3c92487ca	24	*
idinor	0:dcf3c92487ca	25	******************************************************************************
idinor	0:dcf3c92487ca	26	* REVISION HISTORY
idinor	0:dcf3c92487ca	27	*
idinor	0:dcf3c92487ca	28	* 03-01-01 Marc Boucher <marc@mbsi.ca>
idinor	0:dcf3c92487ca	29	* Ported to lwIP.
idinor	0:dcf3c92487ca	30	* 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
idinor	0:dcf3c92487ca	31	* Ported from public pppd code.
idinor	0:dcf3c92487ca	32	*****************************************************************************/
idinor	0:dcf3c92487ca	33	/*
idinor	0:dcf3c92487ca	34	* auth.c - PPP authentication and phase control.
idinor	0:dcf3c92487ca	35	*
idinor	0:dcf3c92487ca	36	* Copyright (c) 1993 The Australian National University.
idinor	0:dcf3c92487ca	37	* All rights reserved.
idinor	0:dcf3c92487ca	38	*
idinor	0:dcf3c92487ca	39	* Redistribution and use in source and binary forms are permitted
idinor	0:dcf3c92487ca	40	* provided that the above copyright notice and this paragraph are
idinor	0:dcf3c92487ca	41	* duplicated in all such forms and that any documentation,
idinor	0:dcf3c92487ca	42	* advertising materials, and other materials related to such
idinor	0:dcf3c92487ca	43	* distribution and use acknowledge that the software was developed
idinor	0:dcf3c92487ca	44	* by the Australian National University. The name of the University
idinor	0:dcf3c92487ca	45	* may not be used to endorse or promote products derived from this
idinor	0:dcf3c92487ca	46	* software without specific prior written permission.
idinor	0:dcf3c92487ca	47	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
idinor	0:dcf3c92487ca	48	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
idinor	0:dcf3c92487ca	49	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
idinor	0:dcf3c92487ca	50	*
idinor	0:dcf3c92487ca	51	* Copyright (c) 1989 Carnegie Mellon University.
idinor	0:dcf3c92487ca	52	* All rights reserved.
idinor	0:dcf3c92487ca	53	*
idinor	0:dcf3c92487ca	54	* Redistribution and use in source and binary forms are permitted
idinor	0:dcf3c92487ca	55	* provided that the above copyright notice and this paragraph are
idinor	0:dcf3c92487ca	56	* duplicated in all such forms and that any documentation,
idinor	0:dcf3c92487ca	57	* advertising materials, and other materials related to such
idinor	0:dcf3c92487ca	58	* distribution and use acknowledge that the software was developed
idinor	0:dcf3c92487ca	59	* by Carnegie Mellon University. The name of the
idinor	0:dcf3c92487ca	60	* University may not be used to endorse or promote products derived
idinor	0:dcf3c92487ca	61	* from this software without specific prior written permission.
idinor	0:dcf3c92487ca	62	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
idinor	0:dcf3c92487ca	63	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
idinor	0:dcf3c92487ca	64	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
idinor	0:dcf3c92487ca	65	*/
idinor	0:dcf3c92487ca	66
idinor	0:dcf3c92487ca	67	#include "lwip/opt.h"
idinor	0:dcf3c92487ca	68
idinor	0:dcf3c92487ca	69	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
idinor	0:dcf3c92487ca	70
idinor	0:dcf3c92487ca	71	#include "ppp.h"
idinor	0:dcf3c92487ca	72	#include "pppdebug.h"
idinor	0:dcf3c92487ca	73
idinor	0:dcf3c92487ca	74	#include "fsm.h"
idinor	0:dcf3c92487ca	75	#include "lcp.h"
idinor	0:dcf3c92487ca	76	#include "pap.h"
idinor	0:dcf3c92487ca	77	#include "chap.h"
idinor	0:dcf3c92487ca	78	#include "auth.h"
idinor	0:dcf3c92487ca	79	#include "ipcp.h"
idinor	0:dcf3c92487ca	80
idinor	0:dcf3c92487ca	81	#if CBCP_SUPPORT
idinor	0:dcf3c92487ca	82	#include "cbcp.h"
idinor	0:dcf3c92487ca	83	#endif /* CBCP_SUPPORT */
idinor	0:dcf3c92487ca	84
idinor	0:dcf3c92487ca	85	#include "lwip/inet.h"
idinor	0:dcf3c92487ca	86
idinor	0:dcf3c92487ca	87	#include <string.h>
idinor	0:dcf3c92487ca	88
idinor	0:dcf3c92487ca	89	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	90	/* Bits in scan_authfile return value */
idinor	0:dcf3c92487ca	91	#define NONWILD_SERVER 1
idinor	0:dcf3c92487ca	92	#define NONWILD_CLIENT 2
idinor	0:dcf3c92487ca	93
idinor	0:dcf3c92487ca	94	#define ISWILD(word) (word[0] == '*' && word[1] == 0)
idinor	0:dcf3c92487ca	95	#endif /* UNUSED */
idinor	0:dcf3c92487ca	96
idinor	0:dcf3c92487ca	97	#if PAP_SUPPORT \|\| CHAP_SUPPORT
idinor	0:dcf3c92487ca	98	/* The name by which the peer authenticated itself to us. */
idinor	0:dcf3c92487ca	99	static char peer_authname[MAXNAMELEN];
idinor	0:dcf3c92487ca	100	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	101
idinor	0:dcf3c92487ca	102	/* Records which authentication operations haven't completed yet. */
idinor	0:dcf3c92487ca	103	static int auth_pending[NUM_PPP];
idinor	0:dcf3c92487ca	104
idinor	0:dcf3c92487ca	105	/* Set if we have successfully called plogin() */
idinor	0:dcf3c92487ca	106	static int logged_in;
idinor	0:dcf3c92487ca	107
idinor	0:dcf3c92487ca	108	/* Set if we have run the /etc/ppp/auth-up script. */
idinor	0:dcf3c92487ca	109	static int did_authup; /* @todo, we don't need this in lwip*/
idinor	0:dcf3c92487ca	110
idinor	0:dcf3c92487ca	111	/* List of addresses which the peer may use. */
idinor	0:dcf3c92487ca	112	static struct wordlist *addresses[NUM_PPP];
idinor	0:dcf3c92487ca	113
idinor	0:dcf3c92487ca	114	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	115	/* Wordlist giving addresses which the peer may use
idinor	0:dcf3c92487ca	116	without authenticating itself. */
idinor	0:dcf3c92487ca	117	static struct wordlist *noauth_addrs;
idinor	0:dcf3c92487ca	118
idinor	0:dcf3c92487ca	119	/* Extra options to apply, from the secrets file entry for the peer. */
idinor	0:dcf3c92487ca	120	static struct wordlist *extra_options;
idinor	0:dcf3c92487ca	121	#endif /* UNUSED */
idinor	0:dcf3c92487ca	122
idinor	0:dcf3c92487ca	123	/* Number of network protocols which we have opened. */
idinor	0:dcf3c92487ca	124	static int num_np_open;
idinor	0:dcf3c92487ca	125
idinor	0:dcf3c92487ca	126	/* Number of network protocols which have come up. */
idinor	0:dcf3c92487ca	127	static int num_np_up;
idinor	0:dcf3c92487ca	128
idinor	0:dcf3c92487ca	129	#if PAP_SUPPORT \|\| CHAP_SUPPORT
idinor	0:dcf3c92487ca	130	/* Set if we got the contents of passwd[] from the pap-secrets file. */
idinor	0:dcf3c92487ca	131	static int passwd_from_file;
idinor	0:dcf3c92487ca	132	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	133
idinor	0:dcf3c92487ca	134	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	135	/* Set if we require authentication only because we have a default route. */
idinor	0:dcf3c92487ca	136	static bool default_auth;
idinor	0:dcf3c92487ca	137
idinor	0:dcf3c92487ca	138	/* Hook to enable a plugin to control the idle time limit */
idinor	0:dcf3c92487ca	139	int (idle_time_hook) __P((struct ppp_idle )) = NULL;
idinor	0:dcf3c92487ca	140
idinor	0:dcf3c92487ca	141	/* Hook for a plugin to say whether we can possibly authenticate any peer */
idinor	0:dcf3c92487ca	142	int (*pap_check_hook) __P((void)) = NULL;
idinor	0:dcf3c92487ca	143
idinor	0:dcf3c92487ca	144	/* Hook for a plugin to check the PAP user and password */
idinor	0:dcf3c92487ca	145	int (pap_auth_hook) __P((char user, char passwd, char *msgp,
idinor	0:dcf3c92487ca	146	struct wordlist **paddrs,
idinor	0:dcf3c92487ca	147	struct wordlist **popts)) = NULL;
idinor	0:dcf3c92487ca	148
idinor	0:dcf3c92487ca	149	/* Hook for a plugin to know about the PAP user logout */
idinor	0:dcf3c92487ca	150	void (*pap_logout_hook) __P((void)) = NULL;
idinor	0:dcf3c92487ca	151
idinor	0:dcf3c92487ca	152	/* Hook for a plugin to get the PAP password for authenticating us */
idinor	0:dcf3c92487ca	153	int (pap_passwd_hook) __P((char user, char *passwd)) = NULL;
idinor	0:dcf3c92487ca	154
idinor	0:dcf3c92487ca	155	/*
idinor	0:dcf3c92487ca	156	* This is used to ensure that we don't start an auth-up/down
idinor	0:dcf3c92487ca	157	* script while one is already running.
idinor	0:dcf3c92487ca	158	*/
idinor	0:dcf3c92487ca	159	enum script_state {
idinor	0:dcf3c92487ca	160	s_down,
idinor	0:dcf3c92487ca	161	s_up
idinor	0:dcf3c92487ca	162	};
idinor	0:dcf3c92487ca	163
idinor	0:dcf3c92487ca	164	static enum script_state auth_state = s_down;
idinor	0:dcf3c92487ca	165	static enum script_state auth_script_state = s_down;
idinor	0:dcf3c92487ca	166	static pid_t auth_script_pid = 0;
idinor	0:dcf3c92487ca	167
idinor	0:dcf3c92487ca	168	/*
idinor	0:dcf3c92487ca	169	* Option variables.
idinor	0:dcf3c92487ca	170	* lwip: some of these are present in the ppp_settings structure
idinor	0:dcf3c92487ca	171	*/
idinor	0:dcf3c92487ca	172	bool uselogin = 0; /* Use /etc/passwd for checking PAP */
idinor	0:dcf3c92487ca	173	bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
idinor	0:dcf3c92487ca	174	bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
idinor	0:dcf3c92487ca	175	bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
idinor	0:dcf3c92487ca	176	bool usehostname = 0; /* Use hostname for our_name */
idinor	0:dcf3c92487ca	177	bool auth_required = 0; /* Always require authentication from peer */
idinor	0:dcf3c92487ca	178	bool allow_any_ip = 0; /* Allow peer to use any IP address */
idinor	0:dcf3c92487ca	179	bool explicit_remote = 0; /* User specified explicit remote name */
idinor	0:dcf3c92487ca	180	char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
idinor	0:dcf3c92487ca	181
idinor	0:dcf3c92487ca	182	#endif /* UNUSED */
idinor	0:dcf3c92487ca	183
idinor	0:dcf3c92487ca	184	/* Bits in auth_pending[] */
idinor	0:dcf3c92487ca	185	#define PAP_WITHPEER 1
idinor	0:dcf3c92487ca	186	#define PAP_PEER 2
idinor	0:dcf3c92487ca	187	#define CHAP_WITHPEER 4
idinor	0:dcf3c92487ca	188	#define CHAP_PEER 8
idinor	0:dcf3c92487ca	189
idinor	0:dcf3c92487ca	190	/* @todo, move this somewhere */
idinor	0:dcf3c92487ca	191	/* Used for storing a sequence of words. Usually malloced. */
idinor	0:dcf3c92487ca	192	struct wordlist {
idinor	0:dcf3c92487ca	193	struct wordlist *next;
idinor	0:dcf3c92487ca	194	char word[1];
idinor	0:dcf3c92487ca	195	};
idinor	0:dcf3c92487ca	196
idinor	0:dcf3c92487ca	197
idinor	0:dcf3c92487ca	198	extern char crypt (const char , const char *);
idinor	0:dcf3c92487ca	199
idinor	0:dcf3c92487ca	200	/* Prototypes for procedures local to this file. */
idinor	0:dcf3c92487ca	201
idinor	0:dcf3c92487ca	202	static void network_phase (int);
idinor	0:dcf3c92487ca	203	static void check_idle (void *);
idinor	0:dcf3c92487ca	204	static void connect_time_expired (void *);
idinor	0:dcf3c92487ca	205	#if 0
idinor	0:dcf3c92487ca	206	static int plogin (char , char , char *, int );
idinor	0:dcf3c92487ca	207	#endif
idinor	0:dcf3c92487ca	208	static void plogout (void);
idinor	0:dcf3c92487ca	209	static int null_login (int);
idinor	0:dcf3c92487ca	210	static int get_pap_passwd (int, char , char );
idinor	0:dcf3c92487ca	211	static int have_pap_secret (void);
idinor	0:dcf3c92487ca	212	static int have_chap_secret (char , char , u32_t);
idinor	0:dcf3c92487ca	213	static int ip_addr_check (u32_t, struct wordlist *);
idinor	0:dcf3c92487ca	214
idinor	0:dcf3c92487ca	215	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	216	static int scan_authfile (FILE , char , char , char ,
idinor	0:dcf3c92487ca	217	struct wordlist , struct wordlist ,
idinor	0:dcf3c92487ca	218	char *);
idinor	0:dcf3c92487ca	219	static void free_wordlist (struct wordlist *);
idinor	0:dcf3c92487ca	220	static void auth_script (char *);
idinor	0:dcf3c92487ca	221	static void auth_script_done (void *);
idinor	0:dcf3c92487ca	222	static void set_allowed_addrs (int unit, struct wordlist *addrs);
idinor	0:dcf3c92487ca	223	static int some_ip_ok (struct wordlist *);
idinor	0:dcf3c92487ca	224	static int setupapfile (char **);
idinor	0:dcf3c92487ca	225	static int privgroup (char **);
idinor	0:dcf3c92487ca	226	static int set_noauth_addr (char **);
idinor	0:dcf3c92487ca	227	static void check_access (FILE , char );
idinor	0:dcf3c92487ca	228	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	229
idinor	0:dcf3c92487ca	230	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	231	/*
idinor	0:dcf3c92487ca	232	* Authentication-related options.
idinor	0:dcf3c92487ca	233	*/
idinor	0:dcf3c92487ca	234	option_t auth_options[] = {
idinor	0:dcf3c92487ca	235	{ "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
idinor	0:dcf3c92487ca	236	"Require PAP authentication from peer", 1, &auth_required },
idinor	0:dcf3c92487ca	237	{ "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
idinor	0:dcf3c92487ca	238	"Require PAP authentication from peer", 1, &auth_required },
idinor	0:dcf3c92487ca	239	{ "refuse-pap", o_bool, &refuse_pap,
idinor	0:dcf3c92487ca	240	"Don't agree to auth to peer with PAP", 1 },
idinor	0:dcf3c92487ca	241	{ "-pap", o_bool, &refuse_pap,
idinor	0:dcf3c92487ca	242	"Don't allow PAP authentication with peer", 1 },
idinor	0:dcf3c92487ca	243	{ "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
idinor	0:dcf3c92487ca	244	"Require CHAP authentication from peer", 1, &auth_required },
idinor	0:dcf3c92487ca	245	{ "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
idinor	0:dcf3c92487ca	246	"Require CHAP authentication from peer", 1, &auth_required },
idinor	0:dcf3c92487ca	247	{ "refuse-chap", o_bool, &refuse_chap,
idinor	0:dcf3c92487ca	248	"Don't agree to auth to peer with CHAP", 1 },
idinor	0:dcf3c92487ca	249	{ "-chap", o_bool, &refuse_chap,
idinor	0:dcf3c92487ca	250	"Don't allow CHAP authentication with peer", 1 },
idinor	0:dcf3c92487ca	251	{ "name", o_string, our_name,
idinor	0:dcf3c92487ca	252	"Set local name for authentication",
idinor	0:dcf3c92487ca	253	OPT_PRIV\|OPT_STATIC, NULL, MAXNAMELEN },
idinor	0:dcf3c92487ca	254	{ "user", o_string, user,
idinor	0:dcf3c92487ca	255	"Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
idinor	0:dcf3c92487ca	256	{ "usehostname", o_bool, &usehostname,
idinor	0:dcf3c92487ca	257	"Must use hostname for authentication", 1 },
idinor	0:dcf3c92487ca	258	{ "remotename", o_string, remote_name,
idinor	0:dcf3c92487ca	259	"Set remote name for authentication", OPT_STATIC,
idinor	0:dcf3c92487ca	260	&explicit_remote, MAXNAMELEN },
idinor	0:dcf3c92487ca	261	{ "auth", o_bool, &auth_required,
idinor	0:dcf3c92487ca	262	"Require authentication from peer", 1 },
idinor	0:dcf3c92487ca	263	{ "noauth", o_bool, &auth_required,
idinor	0:dcf3c92487ca	264	"Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
idinor	0:dcf3c92487ca	265	{ "login", o_bool, &uselogin,
idinor	0:dcf3c92487ca	266	"Use system password database for PAP", 1 },
idinor	0:dcf3c92487ca	267	{ "papcrypt", o_bool, &cryptpap,
idinor	0:dcf3c92487ca	268	"PAP passwords are encrypted", 1 },
idinor	0:dcf3c92487ca	269	{ "+ua", o_special, (void *)setupapfile,
idinor	0:dcf3c92487ca	270	"Get PAP user and password from file" },
idinor	0:dcf3c92487ca	271	{ "password", o_string, passwd,
idinor	0:dcf3c92487ca	272	"Password for authenticating us to the peer", OPT_STATIC,
idinor	0:dcf3c92487ca	273	NULL, MAXSECRETLEN },
idinor	0:dcf3c92487ca	274	{ "privgroup", o_special, (void *)privgroup,
idinor	0:dcf3c92487ca	275	"Allow group members to use privileged options", OPT_PRIV },
idinor	0:dcf3c92487ca	276	{ "allow-ip", o_special, (void *)set_noauth_addr,
idinor	0:dcf3c92487ca	277	"Set IP address(es) which can be used without authentication",
idinor	0:dcf3c92487ca	278	OPT_PRIV },
idinor	0:dcf3c92487ca	279	{ NULL }
idinor	0:dcf3c92487ca	280	};
idinor	0:dcf3c92487ca	281	#endif /* UNUSED */
idinor	0:dcf3c92487ca	282	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	283	/*
idinor	0:dcf3c92487ca	284	* setupapfile - specifies UPAP info for authenticating with peer.
idinor	0:dcf3c92487ca	285	*/
idinor	0:dcf3c92487ca	286	static int
idinor	0:dcf3c92487ca	287	setupapfile(char **argv)
idinor	0:dcf3c92487ca	288	{
idinor	0:dcf3c92487ca	289	FILE * ufile;
idinor	0:dcf3c92487ca	290	int l;
idinor	0:dcf3c92487ca	291
idinor	0:dcf3c92487ca	292	lcp_allowoptions[0].neg_upap = 1;
idinor	0:dcf3c92487ca	293
idinor	0:dcf3c92487ca	294	/* open user info file */
idinor	0:dcf3c92487ca	295	seteuid(getuid());
idinor	0:dcf3c92487ca	296	ufile = fopen(*argv, "r");
idinor	0:dcf3c92487ca	297	seteuid(0);
idinor	0:dcf3c92487ca	298	if (ufile == NULL) {
idinor	0:dcf3c92487ca	299	option_error("unable to open user login data file %s", *argv);
idinor	0:dcf3c92487ca	300	return 0;
idinor	0:dcf3c92487ca	301	}
idinor	0:dcf3c92487ca	302	check_access(ufile, *argv);
idinor	0:dcf3c92487ca	303
idinor	0:dcf3c92487ca	304	/* get username */
idinor	0:dcf3c92487ca	305	if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
idinor	0:dcf3c92487ca	306	\|\| fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
idinor	0:dcf3c92487ca	307	option_error("unable to read user login data file %s", *argv);
idinor	0:dcf3c92487ca	308	return 0;
idinor	0:dcf3c92487ca	309	}
idinor	0:dcf3c92487ca	310	fclose(ufile);
idinor	0:dcf3c92487ca	311
idinor	0:dcf3c92487ca	312	/* get rid of newlines */
idinor	0:dcf3c92487ca	313	l = strlen(user);
idinor	0:dcf3c92487ca	314	if (l > 0 && user[l-1] == '\n')
idinor	0:dcf3c92487ca	315	user[l-1] = 0;
idinor	0:dcf3c92487ca	316	l = strlen(passwd);
idinor	0:dcf3c92487ca	317	if (l > 0 && passwd[l-1] == '\n')
idinor	0:dcf3c92487ca	318	passwd[l-1] = 0;
idinor	0:dcf3c92487ca	319
idinor	0:dcf3c92487ca	320	return (1);
idinor	0:dcf3c92487ca	321	}
idinor	0:dcf3c92487ca	322	#endif /* UNUSED */
idinor	0:dcf3c92487ca	323
idinor	0:dcf3c92487ca	324	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	325	/*
idinor	0:dcf3c92487ca	326	* privgroup - allow members of the group to have privileged access.
idinor	0:dcf3c92487ca	327	*/
idinor	0:dcf3c92487ca	328	static int
idinor	0:dcf3c92487ca	329	privgroup(char **argv)
idinor	0:dcf3c92487ca	330	{
idinor	0:dcf3c92487ca	331	struct group *g;
idinor	0:dcf3c92487ca	332	int i;
idinor	0:dcf3c92487ca	333
idinor	0:dcf3c92487ca	334	g = getgrnam(*argv);
idinor	0:dcf3c92487ca	335	if (g == 0) {
idinor	0:dcf3c92487ca	336	option_error("group %s is unknown", *argv);
idinor	0:dcf3c92487ca	337	return 0;
idinor	0:dcf3c92487ca	338	}
idinor	0:dcf3c92487ca	339	for (i = 0; i < ngroups; ++i) {
idinor	0:dcf3c92487ca	340	if (groups[i] == g->gr_gid) {
idinor	0:dcf3c92487ca	341	privileged = 1;
idinor	0:dcf3c92487ca	342	break;
idinor	0:dcf3c92487ca	343	}
idinor	0:dcf3c92487ca	344	}
idinor	0:dcf3c92487ca	345	return 1;
idinor	0:dcf3c92487ca	346	}
idinor	0:dcf3c92487ca	347	#endif
idinor	0:dcf3c92487ca	348
idinor	0:dcf3c92487ca	349	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	350	/*
idinor	0:dcf3c92487ca	351	* set_noauth_addr - set address(es) that can be used without authentication.
idinor	0:dcf3c92487ca	352	* Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
idinor	0:dcf3c92487ca	353	*/
idinor	0:dcf3c92487ca	354	static int
idinor	0:dcf3c92487ca	355	set_noauth_addr(char **argv)
idinor	0:dcf3c92487ca	356	{
idinor	0:dcf3c92487ca	357	char addr = argv;
idinor	0:dcf3c92487ca	358	int l = strlen(addr);
idinor	0:dcf3c92487ca	359	struct wordlist *wp;
idinor	0:dcf3c92487ca	360
idinor	0:dcf3c92487ca	361	wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
idinor	0:dcf3c92487ca	362	if (wp == NULL)
idinor	0:dcf3c92487ca	363	novm("allow-ip argument");
idinor	0:dcf3c92487ca	364	wp->word = (char *) (wp + 1);
idinor	0:dcf3c92487ca	365	wp->next = noauth_addrs;
idinor	0:dcf3c92487ca	366	BCOPY(addr, wp->word, l);
idinor	0:dcf3c92487ca	367	noauth_addrs = wp;
idinor	0:dcf3c92487ca	368	return 1;
idinor	0:dcf3c92487ca	369	}
idinor	0:dcf3c92487ca	370	#endif /* UNUSED */
idinor	0:dcf3c92487ca	371
idinor	0:dcf3c92487ca	372	/*
idinor	0:dcf3c92487ca	373	* An Open on LCP has requested a change from Dead to Establish phase.
idinor	0:dcf3c92487ca	374	* Do what's necessary to bring the physical layer up.
idinor	0:dcf3c92487ca	375	*/
idinor	0:dcf3c92487ca	376	void
idinor	0:dcf3c92487ca	377	link_required(int unit)
idinor	0:dcf3c92487ca	378	{
idinor	0:dcf3c92487ca	379	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	380
idinor	0:dcf3c92487ca	381	AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
idinor	0:dcf3c92487ca	382	}
idinor	0:dcf3c92487ca	383
idinor	0:dcf3c92487ca	384	/*
idinor	0:dcf3c92487ca	385	* LCP has terminated the link; go to the Dead phase and take the
idinor	0:dcf3c92487ca	386	* physical layer down.
idinor	0:dcf3c92487ca	387	*/
idinor	0:dcf3c92487ca	388	void
idinor	0:dcf3c92487ca	389	link_terminated(int unit)
idinor	0:dcf3c92487ca	390	{
idinor	0:dcf3c92487ca	391	AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
idinor	0:dcf3c92487ca	392	if (lcp_phase[unit] == PHASE_DEAD) {
idinor	0:dcf3c92487ca	393	return;
idinor	0:dcf3c92487ca	394	}
idinor	0:dcf3c92487ca	395	if (logged_in) {
idinor	0:dcf3c92487ca	396	plogout();
idinor	0:dcf3c92487ca	397	}
idinor	0:dcf3c92487ca	398	lcp_phase[unit] = PHASE_DEAD;
idinor	0:dcf3c92487ca	399	AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
idinor	0:dcf3c92487ca	400	pppLinkTerminated(unit);
idinor	0:dcf3c92487ca	401	}
idinor	0:dcf3c92487ca	402
idinor	0:dcf3c92487ca	403	/*
idinor	0:dcf3c92487ca	404	* LCP has gone down; it will either die or try to re-establish.
idinor	0:dcf3c92487ca	405	*/
idinor	0:dcf3c92487ca	406	void
idinor	0:dcf3c92487ca	407	link_down(int unit)
idinor	0:dcf3c92487ca	408	{
idinor	0:dcf3c92487ca	409	int i;
idinor	0:dcf3c92487ca	410	struct protent *protp;
idinor	0:dcf3c92487ca	411
idinor	0:dcf3c92487ca	412	AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
idinor	0:dcf3c92487ca	413
idinor	0:dcf3c92487ca	414	if (did_authup) {
idinor	0:dcf3c92487ca	415	/* XXX Do link down processing. */
idinor	0:dcf3c92487ca	416	did_authup = 0;
idinor	0:dcf3c92487ca	417	}
idinor	0:dcf3c92487ca	418	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
idinor	0:dcf3c92487ca	419	if (!protp->enabled_flag) {
idinor	0:dcf3c92487ca	420	continue;
idinor	0:dcf3c92487ca	421	}
idinor	0:dcf3c92487ca	422	if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
idinor	0:dcf3c92487ca	423	(*protp->lowerdown)(unit);
idinor	0:dcf3c92487ca	424	}
idinor	0:dcf3c92487ca	425	if (protp->protocol < 0xC000 && protp->close != NULL) {
idinor	0:dcf3c92487ca	426	(*protp->close)(unit, "LCP down");
idinor	0:dcf3c92487ca	427	}
idinor	0:dcf3c92487ca	428	}
idinor	0:dcf3c92487ca	429	num_np_open = 0; /* number of network protocols we have opened */
idinor	0:dcf3c92487ca	430	num_np_up = 0; /* Number of network protocols which have come up */
idinor	0:dcf3c92487ca	431
idinor	0:dcf3c92487ca	432	if (lcp_phase[unit] != PHASE_DEAD) {
idinor	0:dcf3c92487ca	433	lcp_phase[unit] = PHASE_TERMINATE;
idinor	0:dcf3c92487ca	434	}
idinor	0:dcf3c92487ca	435	pppLinkDown(unit);
idinor	0:dcf3c92487ca	436	}
idinor	0:dcf3c92487ca	437
idinor	0:dcf3c92487ca	438	/*
idinor	0:dcf3c92487ca	439	* The link is established.
idinor	0:dcf3c92487ca	440	* Proceed to the Dead, Authenticate or Network phase as appropriate.
idinor	0:dcf3c92487ca	441	*/
idinor	0:dcf3c92487ca	442	void
idinor	0:dcf3c92487ca	443	link_established(int unit)
idinor	0:dcf3c92487ca	444	{
idinor	0:dcf3c92487ca	445	int auth;
idinor	0:dcf3c92487ca	446	int i;
idinor	0:dcf3c92487ca	447	struct protent *protp;
idinor	0:dcf3c92487ca	448	lcp_options *wo = &lcp_wantoptions[unit];
idinor	0:dcf3c92487ca	449	lcp_options *go = &lcp_gotoptions[unit];
idinor	0:dcf3c92487ca	450	#if PAP_SUPPORT \|\| CHAP_SUPPORT
idinor	0:dcf3c92487ca	451	lcp_options *ho = &lcp_hisoptions[unit];
idinor	0:dcf3c92487ca	452	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	453
idinor	0:dcf3c92487ca	454	AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
idinor	0:dcf3c92487ca	455	/*
idinor	0:dcf3c92487ca	456	* Tell higher-level protocols that LCP is up.
idinor	0:dcf3c92487ca	457	*/
idinor	0:dcf3c92487ca	458	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
idinor	0:dcf3c92487ca	459	if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
idinor	0:dcf3c92487ca	460	(*protp->lowerup)(unit);
idinor	0:dcf3c92487ca	461	}
idinor	0:dcf3c92487ca	462	}
idinor	0:dcf3c92487ca	463	if (ppp_settings.auth_required && !(go->neg_chap \|\| go->neg_upap)) {
idinor	0:dcf3c92487ca	464	/*
idinor	0:dcf3c92487ca	465	* We wanted the peer to authenticate itself, and it refused:
idinor	0:dcf3c92487ca	466	* treat it as though it authenticated with PAP using a username
idinor	0:dcf3c92487ca	467	* of "" and a password of "". If that's not OK, boot it out.
idinor	0:dcf3c92487ca	468	*/
idinor	0:dcf3c92487ca	469	if (!wo->neg_upap \|\| !null_login(unit)) {
idinor	0:dcf3c92487ca	470	AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
idinor	0:dcf3c92487ca	471	lcp_close(unit, "peer refused to authenticate");
idinor	0:dcf3c92487ca	472	return;
idinor	0:dcf3c92487ca	473	}
idinor	0:dcf3c92487ca	474	}
idinor	0:dcf3c92487ca	475
idinor	0:dcf3c92487ca	476	lcp_phase[unit] = PHASE_AUTHENTICATE;
idinor	0:dcf3c92487ca	477	auth = 0;
idinor	0:dcf3c92487ca	478	#if CHAP_SUPPORT
idinor	0:dcf3c92487ca	479	if (go->neg_chap) {
idinor	0:dcf3c92487ca	480	ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
idinor	0:dcf3c92487ca	481	auth \|= CHAP_PEER;
idinor	0:dcf3c92487ca	482	}
idinor	0:dcf3c92487ca	483	#endif /* CHAP_SUPPORT */
idinor	0:dcf3c92487ca	484	#if PAP_SUPPORT && CHAP_SUPPORT
idinor	0:dcf3c92487ca	485	else
idinor	0:dcf3c92487ca	486	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
idinor	0:dcf3c92487ca	487	#if PAP_SUPPORT
idinor	0:dcf3c92487ca	488	if (go->neg_upap) {
idinor	0:dcf3c92487ca	489	upap_authpeer(unit);
idinor	0:dcf3c92487ca	490	auth \|= PAP_PEER;
idinor	0:dcf3c92487ca	491	}
idinor	0:dcf3c92487ca	492	#endif /* PAP_SUPPORT */
idinor	0:dcf3c92487ca	493	#if CHAP_SUPPORT
idinor	0:dcf3c92487ca	494	if (ho->neg_chap) {
idinor	0:dcf3c92487ca	495	ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
idinor	0:dcf3c92487ca	496	auth \|= CHAP_WITHPEER;
idinor	0:dcf3c92487ca	497	}
idinor	0:dcf3c92487ca	498	#endif /* CHAP_SUPPORT */
idinor	0:dcf3c92487ca	499	#if PAP_SUPPORT && CHAP_SUPPORT
idinor	0:dcf3c92487ca	500	else
idinor	0:dcf3c92487ca	501	#endif /* PAP_SUPPORT && CHAP_SUPPORT */
idinor	0:dcf3c92487ca	502	#if PAP_SUPPORT
idinor	0:dcf3c92487ca	503	if (ho->neg_upap) {
idinor	0:dcf3c92487ca	504	if (ppp_settings.passwd[0] == 0) {
idinor	0:dcf3c92487ca	505	passwd_from_file = 1;
idinor	0:dcf3c92487ca	506	if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
idinor	0:dcf3c92487ca	507	AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
idinor	0:dcf3c92487ca	508	}
idinor	0:dcf3c92487ca	509	}
idinor	0:dcf3c92487ca	510	upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
idinor	0:dcf3c92487ca	511	auth \|= PAP_WITHPEER;
idinor	0:dcf3c92487ca	512	}
idinor	0:dcf3c92487ca	513	#endif /* PAP_SUPPORT */
idinor	0:dcf3c92487ca	514	auth_pending[unit] = auth;
idinor	0:dcf3c92487ca	515
idinor	0:dcf3c92487ca	516	if (!auth) {
idinor	0:dcf3c92487ca	517	network_phase(unit);
idinor	0:dcf3c92487ca	518	}
idinor	0:dcf3c92487ca	519	}
idinor	0:dcf3c92487ca	520
idinor	0:dcf3c92487ca	521	/*
idinor	0:dcf3c92487ca	522	* Proceed to the network phase.
idinor	0:dcf3c92487ca	523	*/
idinor	0:dcf3c92487ca	524	static void
idinor	0:dcf3c92487ca	525	network_phase(int unit)
idinor	0:dcf3c92487ca	526	{
idinor	0:dcf3c92487ca	527	int i;
idinor	0:dcf3c92487ca	528	struct protent *protp;
idinor	0:dcf3c92487ca	529	lcp_options *go = &lcp_gotoptions[unit];
idinor	0:dcf3c92487ca	530
idinor	0:dcf3c92487ca	531	/*
idinor	0:dcf3c92487ca	532	* If the peer had to authenticate, run the auth-up script now.
idinor	0:dcf3c92487ca	533	*/
idinor	0:dcf3c92487ca	534	if ((go->neg_chap \|\| go->neg_upap) && !did_authup) {
idinor	0:dcf3c92487ca	535	/* XXX Do setup for peer authentication. */
idinor	0:dcf3c92487ca	536	did_authup = 1;
idinor	0:dcf3c92487ca	537	}
idinor	0:dcf3c92487ca	538
idinor	0:dcf3c92487ca	539	#if CBCP_SUPPORT
idinor	0:dcf3c92487ca	540	/*
idinor	0:dcf3c92487ca	541	* If we negotiated callback, do it now.
idinor	0:dcf3c92487ca	542	*/
idinor	0:dcf3c92487ca	543	if (go->neg_cbcp) {
idinor	0:dcf3c92487ca	544	lcp_phase[unit] = PHASE_CALLBACK;
idinor	0:dcf3c92487ca	545	(*cbcp_protent.open)(unit);
idinor	0:dcf3c92487ca	546	return;
idinor	0:dcf3c92487ca	547	}
idinor	0:dcf3c92487ca	548	#endif /* CBCP_SUPPORT */
idinor	0:dcf3c92487ca	549
idinor	0:dcf3c92487ca	550	lcp_phase[unit] = PHASE_NETWORK;
idinor	0:dcf3c92487ca	551	for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
idinor	0:dcf3c92487ca	552	if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
idinor	0:dcf3c92487ca	553	(*protp->open)(unit);
idinor	0:dcf3c92487ca	554	if (protp->protocol != PPP_CCP) {
idinor	0:dcf3c92487ca	555	++num_np_open;
idinor	0:dcf3c92487ca	556	}
idinor	0:dcf3c92487ca	557	}
idinor	0:dcf3c92487ca	558	}
idinor	0:dcf3c92487ca	559
idinor	0:dcf3c92487ca	560	if (num_np_open == 0) {
idinor	0:dcf3c92487ca	561	/* nothing to do */
idinor	0:dcf3c92487ca	562	lcp_close(0, "No network protocols running");
idinor	0:dcf3c92487ca	563	}
idinor	0:dcf3c92487ca	564	}
idinor	0:dcf3c92487ca	565	/* @todo: add void start_networks(void) here (pppd 2.3.11) */
idinor	0:dcf3c92487ca	566
idinor	0:dcf3c92487ca	567	/*
idinor	0:dcf3c92487ca	568	* The peer has failed to authenticate himself using `protocol'.
idinor	0:dcf3c92487ca	569	*/
idinor	0:dcf3c92487ca	570	void
idinor	0:dcf3c92487ca	571	auth_peer_fail(int unit, u16_t protocol)
idinor	0:dcf3c92487ca	572	{
idinor	0:dcf3c92487ca	573	LWIP_UNUSED_ARG(protocol);
idinor	0:dcf3c92487ca	574
idinor	0:dcf3c92487ca	575	AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
idinor	0:dcf3c92487ca	576	/*
idinor	0:dcf3c92487ca	577	* Authentication failure: take the link down
idinor	0:dcf3c92487ca	578	*/
idinor	0:dcf3c92487ca	579	lcp_close(unit, "Authentication failed");
idinor	0:dcf3c92487ca	580	}
idinor	0:dcf3c92487ca	581
idinor	0:dcf3c92487ca	582
idinor	0:dcf3c92487ca	583	#if PAP_SUPPORT \|\| CHAP_SUPPORT
idinor	0:dcf3c92487ca	584	/*
idinor	0:dcf3c92487ca	585	* The peer has been successfully authenticated using `protocol'.
idinor	0:dcf3c92487ca	586	*/
idinor	0:dcf3c92487ca	587	void
idinor	0:dcf3c92487ca	588	auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
idinor	0:dcf3c92487ca	589	{
idinor	0:dcf3c92487ca	590	int pbit;
idinor	0:dcf3c92487ca	591
idinor	0:dcf3c92487ca	592	AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
idinor	0:dcf3c92487ca	593	switch (protocol) {
idinor	0:dcf3c92487ca	594	case PPP_CHAP:
idinor	0:dcf3c92487ca	595	pbit = CHAP_PEER;
idinor	0:dcf3c92487ca	596	break;
idinor	0:dcf3c92487ca	597	case PPP_PAP:
idinor	0:dcf3c92487ca	598	pbit = PAP_PEER;
idinor	0:dcf3c92487ca	599	break;
idinor	0:dcf3c92487ca	600	default:
idinor	0:dcf3c92487ca	601	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
idinor	0:dcf3c92487ca	602	return;
idinor	0:dcf3c92487ca	603	}
idinor	0:dcf3c92487ca	604
idinor	0:dcf3c92487ca	605	/*
idinor	0:dcf3c92487ca	606	* Save the authenticated name of the peer for later.
idinor	0:dcf3c92487ca	607	*/
idinor	0:dcf3c92487ca	608	if (namelen > (int)sizeof(peer_authname) - 1) {
idinor	0:dcf3c92487ca	609	namelen = sizeof(peer_authname) - 1;
idinor	0:dcf3c92487ca	610	}
idinor	0:dcf3c92487ca	611	BCOPY(name, peer_authname, namelen);
idinor	0:dcf3c92487ca	612	peer_authname[namelen] = 0;
idinor	0:dcf3c92487ca	613
idinor	0:dcf3c92487ca	614	/*
idinor	0:dcf3c92487ca	615	* If there is no more authentication still to be done,
idinor	0:dcf3c92487ca	616	* proceed to the network (or callback) phase.
idinor	0:dcf3c92487ca	617	*/
idinor	0:dcf3c92487ca	618	if ((auth_pending[unit] &= ~pbit) == 0) {
idinor	0:dcf3c92487ca	619	network_phase(unit);
idinor	0:dcf3c92487ca	620	}
idinor	0:dcf3c92487ca	621	}
idinor	0:dcf3c92487ca	622
idinor	0:dcf3c92487ca	623	/*
idinor	0:dcf3c92487ca	624	* We have failed to authenticate ourselves to the peer using `protocol'.
idinor	0:dcf3c92487ca	625	*/
idinor	0:dcf3c92487ca	626	void
idinor	0:dcf3c92487ca	627	auth_withpeer_fail(int unit, u16_t protocol)
idinor	0:dcf3c92487ca	628	{
idinor	0:dcf3c92487ca	629	int errCode = PPPERR_AUTHFAIL;
idinor	0:dcf3c92487ca	630
idinor	0:dcf3c92487ca	631	LWIP_UNUSED_ARG(protocol);
idinor	0:dcf3c92487ca	632
idinor	0:dcf3c92487ca	633	AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
idinor	0:dcf3c92487ca	634	if (passwd_from_file) {
idinor	0:dcf3c92487ca	635	BZERO(ppp_settings.passwd, MAXSECRETLEN);
idinor	0:dcf3c92487ca	636	}
idinor	0:dcf3c92487ca	637
idinor	0:dcf3c92487ca	638	/*
idinor	0:dcf3c92487ca	639	* We've failed to authenticate ourselves to our peer.
idinor	0:dcf3c92487ca	640	* He'll probably take the link down, and there's not much
idinor	0:dcf3c92487ca	641	* we can do except wait for that.
idinor	0:dcf3c92487ca	642	*/
idinor	0:dcf3c92487ca	643	pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
idinor	0:dcf3c92487ca	644	lcp_close(unit, "Failed to authenticate ourselves to peer");
idinor	0:dcf3c92487ca	645	}
idinor	0:dcf3c92487ca	646
idinor	0:dcf3c92487ca	647	/*
idinor	0:dcf3c92487ca	648	* We have successfully authenticated ourselves with the peer using `protocol'.
idinor	0:dcf3c92487ca	649	*/
idinor	0:dcf3c92487ca	650	void
idinor	0:dcf3c92487ca	651	auth_withpeer_success(int unit, u16_t protocol)
idinor	0:dcf3c92487ca	652	{
idinor	0:dcf3c92487ca	653	int pbit;
idinor	0:dcf3c92487ca	654
idinor	0:dcf3c92487ca	655	AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
idinor	0:dcf3c92487ca	656	switch (protocol) {
idinor	0:dcf3c92487ca	657	case PPP_CHAP:
idinor	0:dcf3c92487ca	658	pbit = CHAP_WITHPEER;
idinor	0:dcf3c92487ca	659	break;
idinor	0:dcf3c92487ca	660	case PPP_PAP:
idinor	0:dcf3c92487ca	661	if (passwd_from_file) {
idinor	0:dcf3c92487ca	662	BZERO(ppp_settings.passwd, MAXSECRETLEN);
idinor	0:dcf3c92487ca	663	}
idinor	0:dcf3c92487ca	664	pbit = PAP_WITHPEER;
idinor	0:dcf3c92487ca	665	break;
idinor	0:dcf3c92487ca	666	default:
idinor	0:dcf3c92487ca	667	AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
idinor	0:dcf3c92487ca	668	pbit = 0;
idinor	0:dcf3c92487ca	669	}
idinor	0:dcf3c92487ca	670
idinor	0:dcf3c92487ca	671	/*
idinor	0:dcf3c92487ca	672	* If there is no more authentication still being done,
idinor	0:dcf3c92487ca	673	* proceed to the network (or callback) phase.
idinor	0:dcf3c92487ca	674	*/
idinor	0:dcf3c92487ca	675	if ((auth_pending[unit] &= ~pbit) == 0) {
idinor	0:dcf3c92487ca	676	network_phase(unit);
idinor	0:dcf3c92487ca	677	}
idinor	0:dcf3c92487ca	678	}
idinor	0:dcf3c92487ca	679	#endif /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	680
idinor	0:dcf3c92487ca	681
idinor	0:dcf3c92487ca	682	/*
idinor	0:dcf3c92487ca	683	* np_up - a network protocol has come up.
idinor	0:dcf3c92487ca	684	*/
idinor	0:dcf3c92487ca	685	void
idinor	0:dcf3c92487ca	686	np_up(int unit, u16_t proto)
idinor	0:dcf3c92487ca	687	{
idinor	0:dcf3c92487ca	688	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	689	LWIP_UNUSED_ARG(proto);
idinor	0:dcf3c92487ca	690
idinor	0:dcf3c92487ca	691	AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
idinor	0:dcf3c92487ca	692	if (num_np_up == 0) {
idinor	0:dcf3c92487ca	693	AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
idinor	0:dcf3c92487ca	694	/*
idinor	0:dcf3c92487ca	695	* At this point we consider that the link has come up successfully.
idinor	0:dcf3c92487ca	696	*/
idinor	0:dcf3c92487ca	697	if (ppp_settings.idle_time_limit > 0) {
idinor	0:dcf3c92487ca	698	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
idinor	0:dcf3c92487ca	699	}
idinor	0:dcf3c92487ca	700
idinor	0:dcf3c92487ca	701	/*
idinor	0:dcf3c92487ca	702	* Set a timeout to close the connection once the maximum
idinor	0:dcf3c92487ca	703	* connect time has expired.
idinor	0:dcf3c92487ca	704	*/
idinor	0:dcf3c92487ca	705	if (ppp_settings.maxconnect > 0) {
idinor	0:dcf3c92487ca	706	TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
idinor	0:dcf3c92487ca	707	}
idinor	0:dcf3c92487ca	708	}
idinor	0:dcf3c92487ca	709	++num_np_up;
idinor	0:dcf3c92487ca	710	}
idinor	0:dcf3c92487ca	711
idinor	0:dcf3c92487ca	712	/*
idinor	0:dcf3c92487ca	713	* np_down - a network protocol has gone down.
idinor	0:dcf3c92487ca	714	*/
idinor	0:dcf3c92487ca	715	void
idinor	0:dcf3c92487ca	716	np_down(int unit, u16_t proto)
idinor	0:dcf3c92487ca	717	{
idinor	0:dcf3c92487ca	718	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	719	LWIP_UNUSED_ARG(proto);
idinor	0:dcf3c92487ca	720
idinor	0:dcf3c92487ca	721	AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
idinor	0:dcf3c92487ca	722	if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
idinor	0:dcf3c92487ca	723	UNTIMEOUT(check_idle, NULL);
idinor	0:dcf3c92487ca	724	}
idinor	0:dcf3c92487ca	725	}
idinor	0:dcf3c92487ca	726
idinor	0:dcf3c92487ca	727	/*
idinor	0:dcf3c92487ca	728	* np_finished - a network protocol has finished using the link.
idinor	0:dcf3c92487ca	729	*/
idinor	0:dcf3c92487ca	730	void
idinor	0:dcf3c92487ca	731	np_finished(int unit, u16_t proto)
idinor	0:dcf3c92487ca	732	{
idinor	0:dcf3c92487ca	733	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	734	LWIP_UNUSED_ARG(proto);
idinor	0:dcf3c92487ca	735
idinor	0:dcf3c92487ca	736	AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
idinor	0:dcf3c92487ca	737	if (--num_np_open <= 0) {
idinor	0:dcf3c92487ca	738	/* no further use for the link: shut up shop. */
idinor	0:dcf3c92487ca	739	lcp_close(0, "No network protocols running");
idinor	0:dcf3c92487ca	740	}
idinor	0:dcf3c92487ca	741	}
idinor	0:dcf3c92487ca	742
idinor	0:dcf3c92487ca	743	/*
idinor	0:dcf3c92487ca	744	* check_idle - check whether the link has been idle for long
idinor	0:dcf3c92487ca	745	* enough that we can shut it down.
idinor	0:dcf3c92487ca	746	*/
idinor	0:dcf3c92487ca	747	static void
idinor	0:dcf3c92487ca	748	check_idle(void *arg)
idinor	0:dcf3c92487ca	749	{
idinor	0:dcf3c92487ca	750	struct ppp_idle idle;
idinor	0:dcf3c92487ca	751	u_short itime;
idinor	0:dcf3c92487ca	752
idinor	0:dcf3c92487ca	753	LWIP_UNUSED_ARG(arg);
idinor	0:dcf3c92487ca	754	if (!get_idle_time(0, &idle)) {
idinor	0:dcf3c92487ca	755	return;
idinor	0:dcf3c92487ca	756	}
idinor	0:dcf3c92487ca	757	itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
idinor	0:dcf3c92487ca	758	if (itime >= ppp_settings.idle_time_limit) {
idinor	0:dcf3c92487ca	759	/* link is idle: shut it down. */
idinor	0:dcf3c92487ca	760	AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
idinor	0:dcf3c92487ca	761	lcp_close(0, "Link inactive");
idinor	0:dcf3c92487ca	762	} else {
idinor	0:dcf3c92487ca	763	TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
idinor	0:dcf3c92487ca	764	}
idinor	0:dcf3c92487ca	765	}
idinor	0:dcf3c92487ca	766
idinor	0:dcf3c92487ca	767	/*
idinor	0:dcf3c92487ca	768	* connect_time_expired - log a message and close the connection.
idinor	0:dcf3c92487ca	769	*/
idinor	0:dcf3c92487ca	770	static void
idinor	0:dcf3c92487ca	771	connect_time_expired(void *arg)
idinor	0:dcf3c92487ca	772	{
idinor	0:dcf3c92487ca	773	LWIP_UNUSED_ARG(arg);
idinor	0:dcf3c92487ca	774
idinor	0:dcf3c92487ca	775	AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
idinor	0:dcf3c92487ca	776	lcp_close(0, "Connect time expired"); /* Close connection */
idinor	0:dcf3c92487ca	777	}
idinor	0:dcf3c92487ca	778
idinor	0:dcf3c92487ca	779	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	780	/*
idinor	0:dcf3c92487ca	781	* auth_check_options - called to check authentication options.
idinor	0:dcf3c92487ca	782	*/
idinor	0:dcf3c92487ca	783	void
idinor	0:dcf3c92487ca	784	auth_check_options(void)
idinor	0:dcf3c92487ca	785	{
idinor	0:dcf3c92487ca	786	lcp_options *wo = &lcp_wantoptions[0];
idinor	0:dcf3c92487ca	787	int can_auth;
idinor	0:dcf3c92487ca	788	ipcp_options *ipwo = &ipcp_wantoptions[0];
idinor	0:dcf3c92487ca	789	u32_t remote;
idinor	0:dcf3c92487ca	790
idinor	0:dcf3c92487ca	791	/* Default our_name to hostname, and user to our_name */
idinor	0:dcf3c92487ca	792	if (ppp_settings.our_name[0] == 0 \|\| ppp_settings.usehostname) {
idinor	0:dcf3c92487ca	793	strcpy(ppp_settings.our_name, ppp_settings.hostname);
idinor	0:dcf3c92487ca	794	}
idinor	0:dcf3c92487ca	795
idinor	0:dcf3c92487ca	796	if (ppp_settings.user[0] == 0) {
idinor	0:dcf3c92487ca	797	strcpy(ppp_settings.user, ppp_settings.our_name);
idinor	0:dcf3c92487ca	798	}
idinor	0:dcf3c92487ca	799
idinor	0:dcf3c92487ca	800	/* If authentication is required, ask peer for CHAP or PAP. */
idinor	0:dcf3c92487ca	801	if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
idinor	0:dcf3c92487ca	802	wo->neg_chap = 1;
idinor	0:dcf3c92487ca	803	wo->neg_upap = 1;
idinor	0:dcf3c92487ca	804	}
idinor	0:dcf3c92487ca	805
idinor	0:dcf3c92487ca	806	/*
idinor	0:dcf3c92487ca	807	* Check whether we have appropriate secrets to use
idinor	0:dcf3c92487ca	808	* to authenticate the peer.
idinor	0:dcf3c92487ca	809	*/
idinor	0:dcf3c92487ca	810	can_auth = wo->neg_upap && have_pap_secret();
idinor	0:dcf3c92487ca	811	if (!can_auth && wo->neg_chap) {
idinor	0:dcf3c92487ca	812	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
idinor	0:dcf3c92487ca	813	can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
idinor	0:dcf3c92487ca	814	}
idinor	0:dcf3c92487ca	815
idinor	0:dcf3c92487ca	816	if (ppp_settings.auth_required && !can_auth) {
idinor	0:dcf3c92487ca	817	ppp_panic("No auth secret");
idinor	0:dcf3c92487ca	818	}
idinor	0:dcf3c92487ca	819	}
idinor	0:dcf3c92487ca	820	#endif /* UNUSED */
idinor	0:dcf3c92487ca	821
idinor	0:dcf3c92487ca	822	/*
idinor	0:dcf3c92487ca	823	* auth_reset - called when LCP is starting negotiations to recheck
idinor	0:dcf3c92487ca	824	* authentication options, i.e. whether we have appropriate secrets
idinor	0:dcf3c92487ca	825	* to use for authenticating ourselves and/or the peer.
idinor	0:dcf3c92487ca	826	*/
idinor	0:dcf3c92487ca	827	void
idinor	0:dcf3c92487ca	828	auth_reset(int unit)
idinor	0:dcf3c92487ca	829	{
idinor	0:dcf3c92487ca	830	lcp_options *go = &lcp_gotoptions[unit];
idinor	0:dcf3c92487ca	831	lcp_options *ao = &lcp_allowoptions[0];
idinor	0:dcf3c92487ca	832	ipcp_options *ipwo = &ipcp_wantoptions[0];
idinor	0:dcf3c92487ca	833	u32_t remote;
idinor	0:dcf3c92487ca	834
idinor	0:dcf3c92487ca	835	AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
idinor	0:dcf3c92487ca	836	ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 \|\| get_pap_passwd(unit, NULL, NULL));
idinor	0:dcf3c92487ca	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)/;
idinor	0:dcf3c92487ca	838
idinor	0:dcf3c92487ca	839	if (go->neg_upap && !have_pap_secret()) {
idinor	0:dcf3c92487ca	840	go->neg_upap = 0;
idinor	0:dcf3c92487ca	841	}
idinor	0:dcf3c92487ca	842	if (go->neg_chap) {
idinor	0:dcf3c92487ca	843	remote = ipwo->accept_remote? 0: ipwo->hisaddr;
idinor	0:dcf3c92487ca	844	if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
idinor	0:dcf3c92487ca	845	go->neg_chap = 0;
idinor	0:dcf3c92487ca	846	}
idinor	0:dcf3c92487ca	847	}
idinor	0:dcf3c92487ca	848	}
idinor	0:dcf3c92487ca	849
idinor	0:dcf3c92487ca	850	#if PAP_SUPPORT
idinor	0:dcf3c92487ca	851	/*
idinor	0:dcf3c92487ca	852	* check_passwd - Check the user name and passwd against the PAP secrets
idinor	0:dcf3c92487ca	853	* file. If requested, also check against the system password database,
idinor	0:dcf3c92487ca	854	* and login the user if OK.
idinor	0:dcf3c92487ca	855	*
idinor	0:dcf3c92487ca	856	* returns:
idinor	0:dcf3c92487ca	857	* UPAP_AUTHNAK: Authentication failed.
idinor	0:dcf3c92487ca	858	* UPAP_AUTHACK: Authentication succeeded.
idinor	0:dcf3c92487ca	859	* In either case, msg points to an appropriate message.
idinor	0:dcf3c92487ca	860	*/
idinor	0:dcf3c92487ca	861	u_char
idinor	0:dcf3c92487ca	862	check_passwd( int unit, char auser, int userlen, char apasswd, int passwdlen, char *msg, int msglen)
idinor	0:dcf3c92487ca	863	{
idinor	0:dcf3c92487ca	864	#if 1 /* XXX Assume all entries OK. */
idinor	0:dcf3c92487ca	865	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	866	LWIP_UNUSED_ARG(auser);
idinor	0:dcf3c92487ca	867	LWIP_UNUSED_ARG(userlen);
idinor	0:dcf3c92487ca	868	LWIP_UNUSED_ARG(apasswd);
idinor	0:dcf3c92487ca	869	LWIP_UNUSED_ARG(passwdlen);
idinor	0:dcf3c92487ca	870	LWIP_UNUSED_ARG(msglen);
idinor	0:dcf3c92487ca	871	msg = (char ) 0;
idinor	0:dcf3c92487ca	872	return UPAP_AUTHACK; /* XXX Assume all entries OK. */
idinor	0:dcf3c92487ca	873	#else
idinor	0:dcf3c92487ca	874	u_char ret = 0;
idinor	0:dcf3c92487ca	875	struct wordlist *addrs = NULL;
idinor	0:dcf3c92487ca	876	char passwd[256], user[256];
idinor	0:dcf3c92487ca	877	char secret[MAXWORDLEN];
idinor	0:dcf3c92487ca	878	static u_short attempts = 0;
idinor	0:dcf3c92487ca	879
idinor	0:dcf3c92487ca	880	/*
idinor	0:dcf3c92487ca	881	* Make copies of apasswd and auser, then null-terminate them.
idinor	0:dcf3c92487ca	882	*/
idinor	0:dcf3c92487ca	883	BCOPY(apasswd, passwd, passwdlen);
idinor	0:dcf3c92487ca	884	passwd[passwdlen] = '\0';
idinor	0:dcf3c92487ca	885	BCOPY(auser, user, userlen);
idinor	0:dcf3c92487ca	886	user[userlen] = '\0';
idinor	0:dcf3c92487ca	887	msg = (char ) 0;
idinor	0:dcf3c92487ca	888
idinor	0:dcf3c92487ca	889	/* XXX Validate user name and password. */
idinor	0:dcf3c92487ca	890	ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
idinor	0:dcf3c92487ca	891
idinor	0:dcf3c92487ca	892	if (ret == UPAP_AUTHNAK) {
idinor	0:dcf3c92487ca	893	if (msg == (char ) 0) {
idinor	0:dcf3c92487ca	894	*msg = "Login incorrect";
idinor	0:dcf3c92487ca	895	}
idinor	0:dcf3c92487ca	896	msglen = strlen(msg);
idinor	0:dcf3c92487ca	897	/*
idinor	0:dcf3c92487ca	898	* Frustrate passwd stealer programs.
idinor	0:dcf3c92487ca	899	* Allow 10 tries, but start backing off after 3 (stolen from login).
idinor	0:dcf3c92487ca	900	* On 10'th, drop the connection.
idinor	0:dcf3c92487ca	901	*/
idinor	0:dcf3c92487ca	902	if (attempts++ >= 10) {
idinor	0:dcf3c92487ca	903	AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
idinor	0:dcf3c92487ca	904	/ppp_panic("Excess Bad Logins");/
idinor	0:dcf3c92487ca	905	}
idinor	0:dcf3c92487ca	906	if (attempts > 3) {
idinor	0:dcf3c92487ca	907	/* @todo: this was sleep(), i.e. seconds, not milliseconds
idinor	0:dcf3c92487ca	908	* I don't think we really need this in lwIP - we would block tcpip_thread!
idinor	0:dcf3c92487ca	909	*/
idinor	0:dcf3c92487ca	910	/sys_msleep((attempts - 3) 5);*/
idinor	0:dcf3c92487ca	911	}
idinor	0:dcf3c92487ca	912	if (addrs != NULL) {
idinor	0:dcf3c92487ca	913	free_wordlist(addrs);
idinor	0:dcf3c92487ca	914	}
idinor	0:dcf3c92487ca	915	} else {
idinor	0:dcf3c92487ca	916	attempts = 0; /* Reset count */
idinor	0:dcf3c92487ca	917	if (msg == (char ) 0) {
idinor	0:dcf3c92487ca	918	*msg = "Login ok";
idinor	0:dcf3c92487ca	919	}
idinor	0:dcf3c92487ca	920	msglen = strlen(msg);
idinor	0:dcf3c92487ca	921	set_allowed_addrs(unit, addrs);
idinor	0:dcf3c92487ca	922	}
idinor	0:dcf3c92487ca	923
idinor	0:dcf3c92487ca	924	BZERO(passwd, sizeof(passwd));
idinor	0:dcf3c92487ca	925	BZERO(secret, sizeof(secret));
idinor	0:dcf3c92487ca	926
idinor	0:dcf3c92487ca	927	return ret;
idinor	0:dcf3c92487ca	928	#endif
idinor	0:dcf3c92487ca	929	}
idinor	0:dcf3c92487ca	930	#endif /* PAP_SUPPORT */
idinor	0:dcf3c92487ca	931
idinor	0:dcf3c92487ca	932	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	933	/*
idinor	0:dcf3c92487ca	934	* This function is needed for PAM.
idinor	0:dcf3c92487ca	935	*/
idinor	0:dcf3c92487ca	936
idinor	0:dcf3c92487ca	937	#ifdef USE_PAM
idinor	0:dcf3c92487ca	938
idinor	0:dcf3c92487ca	939	/* lwip does not support PAM*/
idinor	0:dcf3c92487ca	940
idinor	0:dcf3c92487ca	941	#endif /* USE_PAM */
idinor	0:dcf3c92487ca	942
idinor	0:dcf3c92487ca	943	#endif /* UNUSED */
idinor	0:dcf3c92487ca	944
idinor	0:dcf3c92487ca	945
idinor	0:dcf3c92487ca	946	#if 0 /* UNUSED */
idinor	0:dcf3c92487ca	947	/*
idinor	0:dcf3c92487ca	948	* plogin - Check the user name and password against the system
idinor	0:dcf3c92487ca	949	* password database, and login the user if OK.
idinor	0:dcf3c92487ca	950	*
idinor	0:dcf3c92487ca	951	* returns:
idinor	0:dcf3c92487ca	952	* UPAP_AUTHNAK: Login failed.
idinor	0:dcf3c92487ca	953	* UPAP_AUTHACK: Login succeeded.
idinor	0:dcf3c92487ca	954	* In either case, msg points to an appropriate message.
idinor	0:dcf3c92487ca	955	*/
idinor	0:dcf3c92487ca	956	static int
idinor	0:dcf3c92487ca	957	plogin(char user, char passwd, char *msg, int msglen)
idinor	0:dcf3c92487ca	958	{
idinor	0:dcf3c92487ca	959
idinor	0:dcf3c92487ca	960	LWIP_UNUSED_ARG(user);
idinor	0:dcf3c92487ca	961	LWIP_UNUSED_ARG(passwd);
idinor	0:dcf3c92487ca	962	LWIP_UNUSED_ARG(msg);
idinor	0:dcf3c92487ca	963	LWIP_UNUSED_ARG(msglen);
idinor	0:dcf3c92487ca	964
idinor	0:dcf3c92487ca	965
idinor	0:dcf3c92487ca	966	/* The new lines are here align the file when
idinor	0:dcf3c92487ca	967	* compared against the pppd 2.3.11 code */
idinor	0:dcf3c92487ca	968
idinor	0:dcf3c92487ca	969
idinor	0:dcf3c92487ca	970
idinor	0:dcf3c92487ca	971
idinor	0:dcf3c92487ca	972
idinor	0:dcf3c92487ca	973
idinor	0:dcf3c92487ca	974
idinor	0:dcf3c92487ca	975
idinor	0:dcf3c92487ca	976
idinor	0:dcf3c92487ca	977
idinor	0:dcf3c92487ca	978
idinor	0:dcf3c92487ca	979
idinor	0:dcf3c92487ca	980
idinor	0:dcf3c92487ca	981
idinor	0:dcf3c92487ca	982
idinor	0:dcf3c92487ca	983
idinor	0:dcf3c92487ca	984	/* XXX Fail until we decide that we want to support logins. */
idinor	0:dcf3c92487ca	985	return (UPAP_AUTHNAK);
idinor	0:dcf3c92487ca	986	}
idinor	0:dcf3c92487ca	987	#endif
idinor	0:dcf3c92487ca	988
idinor	0:dcf3c92487ca	989
idinor	0:dcf3c92487ca	990
idinor	0:dcf3c92487ca	991	/*
idinor	0:dcf3c92487ca	992	* plogout - Logout the user.
idinor	0:dcf3c92487ca	993	*/
idinor	0:dcf3c92487ca	994	static void
idinor	0:dcf3c92487ca	995	plogout(void)
idinor	0:dcf3c92487ca	996	{
idinor	0:dcf3c92487ca	997	logged_in = 0;
idinor	0:dcf3c92487ca	998	}
idinor	0:dcf3c92487ca	999
idinor	0:dcf3c92487ca	1000	/*
idinor	0:dcf3c92487ca	1001	* null_login - Check if a username of "" and a password of "" are
idinor	0:dcf3c92487ca	1002	* acceptable, and iff so, set the list of acceptable IP addresses
idinor	0:dcf3c92487ca	1003	* and return 1.
idinor	0:dcf3c92487ca	1004	*/
idinor	0:dcf3c92487ca	1005	static int
idinor	0:dcf3c92487ca	1006	null_login(int unit)
idinor	0:dcf3c92487ca	1007	{
idinor	0:dcf3c92487ca	1008	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	1009	/* XXX Fail until we decide that we want to support logins. */
idinor	0:dcf3c92487ca	1010	return 0;
idinor	0:dcf3c92487ca	1011	}
idinor	0:dcf3c92487ca	1012
idinor	0:dcf3c92487ca	1013
idinor	0:dcf3c92487ca	1014	/*
idinor	0:dcf3c92487ca	1015	* get_pap_passwd - get a password for authenticating ourselves with
idinor	0:dcf3c92487ca	1016	* our peer using PAP. Returns 1 on success, 0 if no suitable password
idinor	0:dcf3c92487ca	1017	* could be found.
idinor	0:dcf3c92487ca	1018	*/
idinor	0:dcf3c92487ca	1019	static int
idinor	0:dcf3c92487ca	1020	get_pap_passwd(int unit, char user, char passwd)
idinor	0:dcf3c92487ca	1021	{
idinor	0:dcf3c92487ca	1022	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	1023	/* normally we would reject PAP if no password is provided,
idinor	0:dcf3c92487ca	1024	but this causes problems with some providers (like CHT in Taiwan)
idinor	0:dcf3c92487ca	1025	who incorrectly request PAP and expect a bogus/empty password, so
idinor	0:dcf3c92487ca	1026	always provide a default user/passwd of "none"/"none"
idinor	0:dcf3c92487ca	1027
idinor	0:dcf3c92487ca	1028	@todo: This should be configured by the user, instead of being hardcoded here!
idinor	0:dcf3c92487ca	1029	*/
idinor	0:dcf3c92487ca	1030	if(user) {
idinor	0:dcf3c92487ca	1031	strcpy(user, "none");
idinor	0:dcf3c92487ca	1032	}
idinor	0:dcf3c92487ca	1033	if(passwd) {
idinor	0:dcf3c92487ca	1034	strcpy(passwd, "none");
idinor	0:dcf3c92487ca	1035	}
idinor	0:dcf3c92487ca	1036	return 1;
idinor	0:dcf3c92487ca	1037	}
idinor	0:dcf3c92487ca	1038
idinor	0:dcf3c92487ca	1039	/*
idinor	0:dcf3c92487ca	1040	* have_pap_secret - check whether we have a PAP file with any
idinor	0:dcf3c92487ca	1041	* secrets that we could possibly use for authenticating the peer.
idinor	0:dcf3c92487ca	1042	*/
idinor	0:dcf3c92487ca	1043	static int
idinor	0:dcf3c92487ca	1044	have_pap_secret(void)
idinor	0:dcf3c92487ca	1045	{
idinor	0:dcf3c92487ca	1046	/* XXX Fail until we set up our passwords. */
idinor	0:dcf3c92487ca	1047	return 0;
idinor	0:dcf3c92487ca	1048	}
idinor	0:dcf3c92487ca	1049
idinor	0:dcf3c92487ca	1050	/*
idinor	0:dcf3c92487ca	1051	* have_chap_secret - check whether we have a CHAP file with a
idinor	0:dcf3c92487ca	1052	* secret that we could possibly use for authenticating `client'
idinor	0:dcf3c92487ca	1053	* on `server'. Either can be the null string, meaning we don't
idinor	0:dcf3c92487ca	1054	* know the identity yet.
idinor	0:dcf3c92487ca	1055	*/
idinor	0:dcf3c92487ca	1056	static int
idinor	0:dcf3c92487ca	1057	have_chap_secret(char client, char server, u32_t remote)
idinor	0:dcf3c92487ca	1058	{
idinor	0:dcf3c92487ca	1059	LWIP_UNUSED_ARG(client);
idinor	0:dcf3c92487ca	1060	LWIP_UNUSED_ARG(server);
idinor	0:dcf3c92487ca	1061	LWIP_UNUSED_ARG(remote);
idinor	0:dcf3c92487ca	1062
idinor	0:dcf3c92487ca	1063	/* XXX Fail until we set up our passwords. */
idinor	0:dcf3c92487ca	1064	return 0;
idinor	0:dcf3c92487ca	1065	}
idinor	0:dcf3c92487ca	1066	#if CHAP_SUPPORT
idinor	0:dcf3c92487ca	1067
idinor	0:dcf3c92487ca	1068	/*
idinor	0:dcf3c92487ca	1069	* get_secret - open the CHAP secret file and return the secret
idinor	0:dcf3c92487ca	1070	* for authenticating the given client on the given server.
idinor	0:dcf3c92487ca	1071	* (We could be either client or server).
idinor	0:dcf3c92487ca	1072	*/
idinor	0:dcf3c92487ca	1073	int
idinor	0:dcf3c92487ca	1074	get_secret(int unit, char client, char server, char secret, int secret_len, int save_addrs)
idinor	0:dcf3c92487ca	1075	{
idinor	0:dcf3c92487ca	1076	#if 1
idinor	0:dcf3c92487ca	1077	int len;
idinor	0:dcf3c92487ca	1078	struct wordlist *addrs;
idinor	0:dcf3c92487ca	1079
idinor	0:dcf3c92487ca	1080	LWIP_UNUSED_ARG(unit);
idinor	0:dcf3c92487ca	1081	LWIP_UNUSED_ARG(server);
idinor	0:dcf3c92487ca	1082	LWIP_UNUSED_ARG(save_addrs);
idinor	0:dcf3c92487ca	1083
idinor	0:dcf3c92487ca	1084	addrs = NULL;
idinor	0:dcf3c92487ca	1085
idinor	0:dcf3c92487ca	1086	if(!client \|\| !client[0] \|\| strcmp(client, ppp_settings.user)) {
idinor	0:dcf3c92487ca	1087	return 0;
idinor	0:dcf3c92487ca	1088	}
idinor	0:dcf3c92487ca	1089
idinor	0:dcf3c92487ca	1090	len = (int)strlen(ppp_settings.passwd);
idinor	0:dcf3c92487ca	1091	if (len > MAXSECRETLEN) {
idinor	0:dcf3c92487ca	1092	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
idinor	0:dcf3c92487ca	1093	len = MAXSECRETLEN;
idinor	0:dcf3c92487ca	1094	}
idinor	0:dcf3c92487ca	1095
idinor	0:dcf3c92487ca	1096	BCOPY(ppp_settings.passwd, secret, len);
idinor	0:dcf3c92487ca	1097	*secret_len = len;
idinor	0:dcf3c92487ca	1098
idinor	0:dcf3c92487ca	1099	return 1;
idinor	0:dcf3c92487ca	1100	#else
idinor	0:dcf3c92487ca	1101	int ret = 0, len;
idinor	0:dcf3c92487ca	1102	struct wordlist *addrs;
idinor	0:dcf3c92487ca	1103	char secbuf[MAXWORDLEN];
idinor	0:dcf3c92487ca	1104
idinor	0:dcf3c92487ca	1105	addrs = NULL;
idinor	0:dcf3c92487ca	1106	secbuf[0] = 0;
idinor	0:dcf3c92487ca	1107
idinor	0:dcf3c92487ca	1108	/* XXX Find secret. */
idinor	0:dcf3c92487ca	1109	if (ret < 0) {
idinor	0:dcf3c92487ca	1110	return 0;
idinor	0:dcf3c92487ca	1111	}
idinor	0:dcf3c92487ca	1112
idinor	0:dcf3c92487ca	1113	if (save_addrs) {
idinor	0:dcf3c92487ca	1114	set_allowed_addrs(unit, addrs);
idinor	0:dcf3c92487ca	1115	}
idinor	0:dcf3c92487ca	1116
idinor	0:dcf3c92487ca	1117	len = strlen(secbuf);
idinor	0:dcf3c92487ca	1118	if (len > MAXSECRETLEN) {
idinor	0:dcf3c92487ca	1119	AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
idinor	0:dcf3c92487ca	1120	len = MAXSECRETLEN;
idinor	0:dcf3c92487ca	1121	}
idinor	0:dcf3c92487ca	1122
idinor	0:dcf3c92487ca	1123	BCOPY(secbuf, secret, len);
idinor	0:dcf3c92487ca	1124	BZERO(secbuf, sizeof(secbuf));
idinor	0:dcf3c92487ca	1125	*secret_len = len;
idinor	0:dcf3c92487ca	1126
idinor	0:dcf3c92487ca	1127	return 1;
idinor	0:dcf3c92487ca	1128	#endif
idinor	0:dcf3c92487ca	1129	}
idinor	0:dcf3c92487ca	1130	#endif /* CHAP_SUPPORT */
idinor	0:dcf3c92487ca	1131
idinor	0:dcf3c92487ca	1132
idinor	0:dcf3c92487ca	1133	#if 0 /* PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	1134	/*
idinor	0:dcf3c92487ca	1135	* set_allowed_addrs() - set the list of allowed addresses.
idinor	0:dcf3c92487ca	1136	*/
idinor	0:dcf3c92487ca	1137	static void
idinor	0:dcf3c92487ca	1138	set_allowed_addrs(int unit, struct wordlist *addrs)
idinor	0:dcf3c92487ca	1139	{
idinor	0:dcf3c92487ca	1140	if (addresses[unit] != NULL) {
idinor	0:dcf3c92487ca	1141	free_wordlist(addresses[unit]);
idinor	0:dcf3c92487ca	1142	}
idinor	0:dcf3c92487ca	1143	addresses[unit] = addrs;
idinor	0:dcf3c92487ca	1144
idinor	0:dcf3c92487ca	1145	#if 0
idinor	0:dcf3c92487ca	1146	/*
idinor	0:dcf3c92487ca	1147	* If there's only one authorized address we might as well
idinor	0:dcf3c92487ca	1148	* ask our peer for that one right away
idinor	0:dcf3c92487ca	1149	*/
idinor	0:dcf3c92487ca	1150	if (addrs != NULL && addrs->next == NULL) {
idinor	0:dcf3c92487ca	1151	char *p = addrs->word;
idinor	0:dcf3c92487ca	1152	struct ipcp_options *wo = &ipcp_wantoptions[unit];
idinor	0:dcf3c92487ca	1153	u32_t a;
idinor	0:dcf3c92487ca	1154	struct hostent *hp;
idinor	0:dcf3c92487ca	1155
idinor	0:dcf3c92487ca	1156	if (wo->hisaddr == 0 && p != '!' && p != '-' && strchr(p, '/') == NULL) {
idinor	0:dcf3c92487ca	1157	hp = gethostbyname(p);
idinor	0:dcf3c92487ca	1158	if (hp != NULL && hp->h_addrtype == AF_INET) {
idinor	0:dcf3c92487ca	1159	a = (u32_t )hp->h_addr;
idinor	0:dcf3c92487ca	1160	} else {
idinor	0:dcf3c92487ca	1161	a = inet_addr(p);
idinor	0:dcf3c92487ca	1162	}
idinor	0:dcf3c92487ca	1163	if (a != (u32_t) -1) {
idinor	0:dcf3c92487ca	1164	wo->hisaddr = a;
idinor	0:dcf3c92487ca	1165	}
idinor	0:dcf3c92487ca	1166	}
idinor	0:dcf3c92487ca	1167	}
idinor	0:dcf3c92487ca	1168	#endif
idinor	0:dcf3c92487ca	1169	}
idinor	0:dcf3c92487ca	1170	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	1171
idinor	0:dcf3c92487ca	1172	/*
idinor	0:dcf3c92487ca	1173	* auth_ip_addr - check whether the peer is authorized to use
idinor	0:dcf3c92487ca	1174	* a given IP address. Returns 1 if authorized, 0 otherwise.
idinor	0:dcf3c92487ca	1175	*/
idinor	0:dcf3c92487ca	1176	int
idinor	0:dcf3c92487ca	1177	auth_ip_addr(int unit, u32_t addr)
idinor	0:dcf3c92487ca	1178	{
idinor	0:dcf3c92487ca	1179	return ip_addr_check(addr, addresses[unit]);
idinor	0:dcf3c92487ca	1180	}
idinor	0:dcf3c92487ca	1181
idinor	0:dcf3c92487ca	1182	static int /* @todo: integrate this funtion into auth_ip_addr()*/
idinor	0:dcf3c92487ca	1183	ip_addr_check(u32_t addr, struct wordlist *addrs)
idinor	0:dcf3c92487ca	1184	{
idinor	0:dcf3c92487ca	1185	/* don't allow loopback or multicast address */
idinor	0:dcf3c92487ca	1186	if (bad_ip_adrs(addr)) {
idinor	0:dcf3c92487ca	1187	return 0;
idinor	0:dcf3c92487ca	1188	}
idinor	0:dcf3c92487ca	1189
idinor	0:dcf3c92487ca	1190	if (addrs == NULL) {
idinor	0:dcf3c92487ca	1191	return !ppp_settings.auth_required; /* no addresses authorized */
idinor	0:dcf3c92487ca	1192	}
idinor	0:dcf3c92487ca	1193
idinor	0:dcf3c92487ca	1194	/* XXX All other addresses allowed. */
idinor	0:dcf3c92487ca	1195	return 1;
idinor	0:dcf3c92487ca	1196	}
idinor	0:dcf3c92487ca	1197
idinor	0:dcf3c92487ca	1198	/*
idinor	0:dcf3c92487ca	1199	* bad_ip_adrs - return 1 if the IP address is one we don't want
idinor	0:dcf3c92487ca	1200	* to use, such as an address in the loopback net or a multicast address.
idinor	0:dcf3c92487ca	1201	* addr is in network byte order.
idinor	0:dcf3c92487ca	1202	*/
idinor	0:dcf3c92487ca	1203	int
idinor	0:dcf3c92487ca	1204	bad_ip_adrs(u32_t addr)
idinor	0:dcf3c92487ca	1205	{
idinor	0:dcf3c92487ca	1206	addr = ntohl(addr);
idinor	0:dcf3c92487ca	1207	return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
idinor	0:dcf3c92487ca	1208	\|\| IN_MULTICAST(addr) \|\| IN_BADCLASS(addr);
idinor	0:dcf3c92487ca	1209	}
idinor	0:dcf3c92487ca	1210
idinor	0:dcf3c92487ca	1211	#if 0 /* UNUSED / / PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	1212	/*
idinor	0:dcf3c92487ca	1213	* some_ip_ok - check a wordlist to see if it authorizes any
idinor	0:dcf3c92487ca	1214	* IP address(es).
idinor	0:dcf3c92487ca	1215	*/
idinor	0:dcf3c92487ca	1216	static int
idinor	0:dcf3c92487ca	1217	some_ip_ok(struct wordlist *addrs)
idinor	0:dcf3c92487ca	1218	{
idinor	0:dcf3c92487ca	1219	for (; addrs != 0; addrs = addrs->next) {
idinor	0:dcf3c92487ca	1220	if (addrs->word[0] == '-')
idinor	0:dcf3c92487ca	1221	break;
idinor	0:dcf3c92487ca	1222	if (addrs->word[0] != '!')
idinor	0:dcf3c92487ca	1223	return 1; /* some IP address is allowed */
idinor	0:dcf3c92487ca	1224	}
idinor	0:dcf3c92487ca	1225	return 0;
idinor	0:dcf3c92487ca	1226	}
idinor	0:dcf3c92487ca	1227
idinor	0:dcf3c92487ca	1228	/*
idinor	0:dcf3c92487ca	1229	* check_access - complain if a secret file has too-liberal permissions.
idinor	0:dcf3c92487ca	1230	*/
idinor	0:dcf3c92487ca	1231	static void
idinor	0:dcf3c92487ca	1232	check_access(FILE f, char filename)
idinor	0:dcf3c92487ca	1233	{
idinor	0:dcf3c92487ca	1234	struct stat sbuf;
idinor	0:dcf3c92487ca	1235
idinor	0:dcf3c92487ca	1236	if (fstat(fileno(f), &sbuf) < 0) {
idinor	0:dcf3c92487ca	1237	warn("cannot stat secret file %s: %m", filename);
idinor	0:dcf3c92487ca	1238	} else if ((sbuf.st_mode & (S_IRWXG \| S_IRWXO)) != 0) {
idinor	0:dcf3c92487ca	1239	warn("Warning - secret file %s has world and/or group access",
idinor	0:dcf3c92487ca	1240	filename);
idinor	0:dcf3c92487ca	1241	}
idinor	0:dcf3c92487ca	1242	}
idinor	0:dcf3c92487ca	1243
idinor	0:dcf3c92487ca	1244
idinor	0:dcf3c92487ca	1245	/*
idinor	0:dcf3c92487ca	1246	* scan_authfile - Scan an authorization file for a secret suitable
idinor	0:dcf3c92487ca	1247	* for authenticating `client' on `server'. The return value is -1
idinor	0:dcf3c92487ca	1248	* if no secret is found, otherwise >= 0. The return value has
idinor	0:dcf3c92487ca	1249	* NONWILD_CLIENT set if the secret didn't have "*" for the client, and
idinor	0:dcf3c92487ca	1250	* NONWILD_SERVER set if the secret didn't have "*" for the server.
idinor	0:dcf3c92487ca	1251	* Any following words on the line up to a "--" (i.e. address authorization
idinor	0:dcf3c92487ca	1252	* info) are placed in a wordlist and returned in *addrs. Any
idinor	0:dcf3c92487ca	1253	* following words (extra options) are placed in a wordlist and
idinor	0:dcf3c92487ca	1254	* returned in *opts.
idinor	0:dcf3c92487ca	1255	* We assume secret is NULL or points to MAXWORDLEN bytes of space.
idinor	0:dcf3c92487ca	1256	*/
idinor	0:dcf3c92487ca	1257	static int
idinor	0:dcf3c92487ca	1258	scan_authfile(FILE f, char client, char server, char secret, struct wordlist addrs, struct wordlist opts, char *filename)
idinor	0:dcf3c92487ca	1259	{
idinor	0:dcf3c92487ca	1260	/* We do not (currently) need this in lwip */
idinor	0:dcf3c92487ca	1261	return 0; /* dummy */
idinor	0:dcf3c92487ca	1262	}
idinor	0:dcf3c92487ca	1263	/*
idinor	0:dcf3c92487ca	1264	* free_wordlist - release memory allocated for a wordlist.
idinor	0:dcf3c92487ca	1265	*/
idinor	0:dcf3c92487ca	1266	static void
idinor	0:dcf3c92487ca	1267	free_wordlist(struct wordlist *wp)
idinor	0:dcf3c92487ca	1268	{
idinor	0:dcf3c92487ca	1269	struct wordlist *next;
idinor	0:dcf3c92487ca	1270
idinor	0:dcf3c92487ca	1271	while (wp != NULL) {
idinor	0:dcf3c92487ca	1272	next = wp->next;
idinor	0:dcf3c92487ca	1273	free(wp);
idinor	0:dcf3c92487ca	1274	wp = next;
idinor	0:dcf3c92487ca	1275	}
idinor	0:dcf3c92487ca	1276	}
idinor	0:dcf3c92487ca	1277
idinor	0:dcf3c92487ca	1278	/*
idinor	0:dcf3c92487ca	1279	* auth_script_done - called when the auth-up or auth-down script
idinor	0:dcf3c92487ca	1280	* has finished.
idinor	0:dcf3c92487ca	1281	*/
idinor	0:dcf3c92487ca	1282	static void
idinor	0:dcf3c92487ca	1283	auth_script_done(void *arg)
idinor	0:dcf3c92487ca	1284	{
idinor	0:dcf3c92487ca	1285	auth_script_pid = 0;
idinor	0:dcf3c92487ca	1286	switch (auth_script_state) {
idinor	0:dcf3c92487ca	1287	case s_up:
idinor	0:dcf3c92487ca	1288	if (auth_state == s_down) {
idinor	0:dcf3c92487ca	1289	auth_script_state = s_down;
idinor	0:dcf3c92487ca	1290	auth_script(_PATH_AUTHDOWN);
idinor	0:dcf3c92487ca	1291	}
idinor	0:dcf3c92487ca	1292	break;
idinor	0:dcf3c92487ca	1293	case s_down:
idinor	0:dcf3c92487ca	1294	if (auth_state == s_up) {
idinor	0:dcf3c92487ca	1295	auth_script_state = s_up;
idinor	0:dcf3c92487ca	1296	auth_script(_PATH_AUTHUP);
idinor	0:dcf3c92487ca	1297	}
idinor	0:dcf3c92487ca	1298	break;
idinor	0:dcf3c92487ca	1299	}
idinor	0:dcf3c92487ca	1300	}
idinor	0:dcf3c92487ca	1301
idinor	0:dcf3c92487ca	1302	/*
idinor	0:dcf3c92487ca	1303	* auth_script - execute a script with arguments
idinor	0:dcf3c92487ca	1304	* interface-name peer-name real-user tty speed
idinor	0:dcf3c92487ca	1305	*/
idinor	0:dcf3c92487ca	1306	static void
idinor	0:dcf3c92487ca	1307	auth_script(char *script)
idinor	0:dcf3c92487ca	1308	{
idinor	0:dcf3c92487ca	1309	char strspeed[32];
idinor	0:dcf3c92487ca	1310	struct passwd *pw;
idinor	0:dcf3c92487ca	1311	char struid[32];
idinor	0:dcf3c92487ca	1312	char *user_name;
idinor	0:dcf3c92487ca	1313	char *argv[8];
idinor	0:dcf3c92487ca	1314
idinor	0:dcf3c92487ca	1315	if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
idinor	0:dcf3c92487ca	1316	user_name = pw->pw_name;
idinor	0:dcf3c92487ca	1317	else {
idinor	0:dcf3c92487ca	1318	slprintf(struid, sizeof(struid), "%d", getuid());
idinor	0:dcf3c92487ca	1319	user_name = struid;
idinor	0:dcf3c92487ca	1320	}
idinor	0:dcf3c92487ca	1321	slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
idinor	0:dcf3c92487ca	1322
idinor	0:dcf3c92487ca	1323	argv[0] = script;
idinor	0:dcf3c92487ca	1324	argv[1] = ifname;
idinor	0:dcf3c92487ca	1325	argv[2] = peer_authname;
idinor	0:dcf3c92487ca	1326	argv[3] = user_name;
idinor	0:dcf3c92487ca	1327	argv[4] = devnam;
idinor	0:dcf3c92487ca	1328	argv[5] = strspeed;
idinor	0:dcf3c92487ca	1329	argv[6] = NULL;
idinor	0:dcf3c92487ca	1330
idinor	0:dcf3c92487ca	1331	auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
idinor	0:dcf3c92487ca	1332	}
idinor	0:dcf3c92487ca	1333	#endif /* 0 / / PAP_SUPPORT \|\| CHAP_SUPPORT */
idinor	0:dcf3c92487ca	1334	#endif /* PPP_SUPPORT */

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Type:	Library
Created:	20 Jul 2011
Imports:	35
Forks:	0
Commits:	1
Dependents:	1
Dependencies:	0
Followers:	1

lwip/netif/ppp/auth.c@0:dcf3c92487ca, 2011-07-20 (annotated)

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