Adam Green / Mbed 2 deprecated WeatherStation

Web server based weather station using Sparkfun Weather Meters.

Dependencies:   FatFileSystem mbed WeatherMeters SDFileSystem

NetStack/lwip/netif/ppp/auth.c@1:c7958aa34fa1, 2012-02-25 (annotated)

Committer:
AdamGreen
Date:
Sat Feb 25 03:28:05 2012 +0000
Revision:
1:c7958aa34fa1
Parent:
0:616601bde9fb 
Use published libraries where possible.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AdamGreen 0:616601bde9fb 1 /*****************************************************************************
AdamGreen 0:616601bde9fb 2 * auth.c - Network Authentication and Phase Control program file.
AdamGreen 0:616601bde9fb 3 *
AdamGreen 0:616601bde9fb 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
AdamGreen 0:616601bde9fb 5 * Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
AdamGreen 0:616601bde9fb 6 *
AdamGreen 0:616601bde9fb 7 * The authors hereby grant permission to use, copy, modify, distribute,
AdamGreen 0:616601bde9fb 8 * and license this software and its documentation for any purpose, provided
AdamGreen 0:616601bde9fb 9 * that existing copyright notices are retained in all copies and that this
AdamGreen 0:616601bde9fb 10 * notice and the following disclaimer are included verbatim in any
AdamGreen 0:616601bde9fb 11 * distributions. No written agreement, license, or royalty fee is required
AdamGreen 0:616601bde9fb 12 * for any of the authorized uses.
AdamGreen 0:616601bde9fb 13 *
AdamGreen 0:616601bde9fb 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
AdamGreen 0:616601bde9fb 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
AdamGreen 0:616601bde9fb 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
AdamGreen 0:616601bde9fb 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
AdamGreen 0:616601bde9fb 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
AdamGreen 0:616601bde9fb 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
AdamGreen 0:616601bde9fb 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
AdamGreen 0:616601bde9fb 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AdamGreen 0:616601bde9fb 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
AdamGreen 0:616601bde9fb 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AdamGreen 0:616601bde9fb 24 *
AdamGreen 0:616601bde9fb 25 ******************************************************************************
AdamGreen 0:616601bde9fb 26 * REVISION HISTORY
AdamGreen 0:616601bde9fb 27 *
AdamGreen 0:616601bde9fb 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
AdamGreen 0:616601bde9fb 29 * Ported to lwIP.
AdamGreen 0:616601bde9fb 30 * 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
AdamGreen 0:616601bde9fb 31 * Ported from public pppd code.
AdamGreen 0:616601bde9fb 32 *****************************************************************************/
AdamGreen 0:616601bde9fb 33 /*
AdamGreen 0:616601bde9fb 34 * auth.c - PPP authentication and phase control.
AdamGreen 0:616601bde9fb 35 *
AdamGreen 0:616601bde9fb 36 * Copyright (c) 1993 The Australian National University.
AdamGreen 0:616601bde9fb 37 * All rights reserved.
AdamGreen 0:616601bde9fb 38 *
AdamGreen 0:616601bde9fb 39 * Redistribution and use in source and binary forms are permitted
AdamGreen 0:616601bde9fb 40 * provided that the above copyright notice and this paragraph are
AdamGreen 0:616601bde9fb 41 * duplicated in all such forms and that any documentation,
AdamGreen 0:616601bde9fb 42 * advertising materials, and other materials related to such
AdamGreen 0:616601bde9fb 43 * distribution and use acknowledge that the software was developed
AdamGreen 0:616601bde9fb 44 * by the Australian National University. The name of the University
AdamGreen 0:616601bde9fb 45 * may not be used to endorse or promote products derived from this
AdamGreen 0:616601bde9fb 46 * software without specific prior written permission.
AdamGreen 0:616601bde9fb 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
AdamGreen 0:616601bde9fb 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
AdamGreen 0:616601bde9fb 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
AdamGreen 0:616601bde9fb 50 *
AdamGreen 0:616601bde9fb 51 * Copyright (c) 1989 Carnegie Mellon University.
AdamGreen 0:616601bde9fb 52 * All rights reserved.
AdamGreen 0:616601bde9fb 53 *
AdamGreen 0:616601bde9fb 54 * Redistribution and use in source and binary forms are permitted
AdamGreen 0:616601bde9fb 55 * provided that the above copyright notice and this paragraph are
AdamGreen 0:616601bde9fb 56 * duplicated in all such forms and that any documentation,
AdamGreen 0:616601bde9fb 57 * advertising materials, and other materials related to such
AdamGreen 0:616601bde9fb 58 * distribution and use acknowledge that the software was developed
AdamGreen 0:616601bde9fb 59 * by Carnegie Mellon University. The name of the
AdamGreen 0:616601bde9fb 60 * University may not be used to endorse or promote products derived
AdamGreen 0:616601bde9fb 61 * from this software without specific prior written permission.
AdamGreen 0:616601bde9fb 62 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
AdamGreen 0:616601bde9fb 63 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
AdamGreen 0:616601bde9fb 64 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
AdamGreen 0:616601bde9fb 65 */
AdamGreen 0:616601bde9fb 66
AdamGreen 0:616601bde9fb 67 #include "lwip/opt.h"
AdamGreen 0:616601bde9fb 68
AdamGreen 0:616601bde9fb 69 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
AdamGreen 0:616601bde9fb 70
AdamGreen 0:616601bde9fb 71 #include "ppp.h"
AdamGreen 0:616601bde9fb 72 #include "pppdebug.h"
AdamGreen 0:616601bde9fb 73
AdamGreen 0:616601bde9fb 74 #include "fsm.h"
AdamGreen 0:616601bde9fb 75 #include "lcp.h"
AdamGreen 0:616601bde9fb 76 #include "pap.h"
AdamGreen 0:616601bde9fb 77 #include "chap.h"
AdamGreen 0:616601bde9fb 78 #include "auth.h"
AdamGreen 0:616601bde9fb 79 #include "ipcp.h"
AdamGreen 0:616601bde9fb 80
AdamGreen 0:616601bde9fb 81 #if CBCP_SUPPORT
AdamGreen 0:616601bde9fb 82 #include "cbcp.h"
AdamGreen 0:616601bde9fb 83 #endif /* CBCP_SUPPORT */
AdamGreen 0:616601bde9fb 84
AdamGreen 0:616601bde9fb 85 #include "lwip/inet.h"
AdamGreen 0:616601bde9fb 86
AdamGreen 0:616601bde9fb 87 #include <string.h>
AdamGreen 0:616601bde9fb 88
AdamGreen 0:616601bde9fb 89 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 90 /* Bits in scan_authfile return value */
AdamGreen 0:616601bde9fb 91 #define NONWILD_SERVER 1
AdamGreen 0:616601bde9fb 92 #define NONWILD_CLIENT 2
AdamGreen 0:616601bde9fb 93
AdamGreen 0:616601bde9fb 94 #define ISWILD(word) (word[0] == '*' && word[1] == 0)
AdamGreen 0:616601bde9fb 95 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 96
AdamGreen 0:616601bde9fb 97 #if PAP_SUPPORT || CHAP_SUPPORT
AdamGreen 0:616601bde9fb 98 /* The name by which the peer authenticated itself to us. */
AdamGreen 0:616601bde9fb 99 static char peer_authname[MAXNAMELEN];
AdamGreen 0:616601bde9fb 100 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 101
AdamGreen 0:616601bde9fb 102 /* Records which authentication operations haven't completed yet. */
AdamGreen 0:616601bde9fb 103 static int auth_pending[NUM_PPP];
AdamGreen 0:616601bde9fb 104
AdamGreen 0:616601bde9fb 105 /* Set if we have successfully called plogin() */
AdamGreen 0:616601bde9fb 106 static int logged_in;
AdamGreen 0:616601bde9fb 107
AdamGreen 0:616601bde9fb 108 /* Set if we have run the /etc/ppp/auth-up script. */
AdamGreen 0:616601bde9fb 109 static int did_authup; /* @todo, we don't need this in lwip*/
AdamGreen 0:616601bde9fb 110
AdamGreen 0:616601bde9fb 111 /* List of addresses which the peer may use. */
AdamGreen 0:616601bde9fb 112 static struct wordlist *addresses[NUM_PPP];
AdamGreen 0:616601bde9fb 113
AdamGreen 0:616601bde9fb 114 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 115 /* Wordlist giving addresses which the peer may use
AdamGreen 0:616601bde9fb 116 without authenticating itself. */
AdamGreen 0:616601bde9fb 117 static struct wordlist *noauth_addrs;
AdamGreen 0:616601bde9fb 118
AdamGreen 0:616601bde9fb 119 /* Extra options to apply, from the secrets file entry for the peer. */
AdamGreen 0:616601bde9fb 120 static struct wordlist *extra_options;
AdamGreen 0:616601bde9fb 121 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 122
AdamGreen 0:616601bde9fb 123 /* Number of network protocols which we have opened. */
AdamGreen 0:616601bde9fb 124 static int num_np_open;
AdamGreen 0:616601bde9fb 125
AdamGreen 0:616601bde9fb 126 /* Number of network protocols which have come up. */
AdamGreen 0:616601bde9fb 127 static int num_np_up;
AdamGreen 0:616601bde9fb 128
AdamGreen 0:616601bde9fb 129 #if PAP_SUPPORT || CHAP_SUPPORT
AdamGreen 0:616601bde9fb 130 /* Set if we got the contents of passwd[] from the pap-secrets file. */
AdamGreen 0:616601bde9fb 131 static int passwd_from_file;
AdamGreen 0:616601bde9fb 132 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 133
AdamGreen 0:616601bde9fb 134 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 135 /* Set if we require authentication only because we have a default route. */
AdamGreen 0:616601bde9fb 136 static bool default_auth;
AdamGreen 0:616601bde9fb 137
AdamGreen 0:616601bde9fb 138 /* Hook to enable a plugin to control the idle time limit */
AdamGreen 0:616601bde9fb 139 int (*idle_time_hook) __P((struct ppp_idle *)) = NULL;
AdamGreen 0:616601bde9fb 140
AdamGreen 0:616601bde9fb 141 /* Hook for a plugin to say whether we can possibly authenticate any peer */
AdamGreen 0:616601bde9fb 142 int (*pap_check_hook) __P((void)) = NULL;
AdamGreen 0:616601bde9fb 143
AdamGreen 0:616601bde9fb 144 /* Hook for a plugin to check the PAP user and password */
AdamGreen 0:616601bde9fb 145 int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
AdamGreen 0:616601bde9fb 146 struct wordlist **paddrs,
AdamGreen 0:616601bde9fb 147 struct wordlist **popts)) = NULL;
AdamGreen 0:616601bde9fb 148
AdamGreen 0:616601bde9fb 149 /* Hook for a plugin to know about the PAP user logout */
AdamGreen 0:616601bde9fb 150 void (*pap_logout_hook) __P((void)) = NULL;
AdamGreen 0:616601bde9fb 151
AdamGreen 0:616601bde9fb 152 /* Hook for a plugin to get the PAP password for authenticating us */
AdamGreen 0:616601bde9fb 153 int (*pap_passwd_hook) __P((char *user, char *passwd)) = NULL;
AdamGreen 0:616601bde9fb 154
AdamGreen 0:616601bde9fb 155 /*
AdamGreen 0:616601bde9fb 156 * This is used to ensure that we don't start an auth-up/down
AdamGreen 0:616601bde9fb 157 * script while one is already running.
AdamGreen 0:616601bde9fb 158 */
AdamGreen 0:616601bde9fb 159 enum script_state {
AdamGreen 0:616601bde9fb 160 s_down,
AdamGreen 0:616601bde9fb 161 s_up
AdamGreen 0:616601bde9fb 162 };
AdamGreen 0:616601bde9fb 163
AdamGreen 0:616601bde9fb 164 static enum script_state auth_state = s_down;
AdamGreen 0:616601bde9fb 165 static enum script_state auth_script_state = s_down;
AdamGreen 0:616601bde9fb 166 static pid_t auth_script_pid = 0;
AdamGreen 0:616601bde9fb 167
AdamGreen 0:616601bde9fb 168 /*
AdamGreen 0:616601bde9fb 169 * Option variables.
AdamGreen 0:616601bde9fb 170 * lwip: some of these are present in the ppp_settings structure
AdamGreen 0:616601bde9fb 171 */
AdamGreen 0:616601bde9fb 172 bool uselogin = 0; /* Use /etc/passwd for checking PAP */
AdamGreen 0:616601bde9fb 173 bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
AdamGreen 0:616601bde9fb 174 bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
AdamGreen 0:616601bde9fb 175 bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
AdamGreen 0:616601bde9fb 176 bool usehostname = 0; /* Use hostname for our_name */
AdamGreen 0:616601bde9fb 177 bool auth_required = 0; /* Always require authentication from peer */
AdamGreen 0:616601bde9fb 178 bool allow_any_ip = 0; /* Allow peer to use any IP address */
AdamGreen 0:616601bde9fb 179 bool explicit_remote = 0; /* User specified explicit remote name */
AdamGreen 0:616601bde9fb 180 char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
AdamGreen 0:616601bde9fb 181
AdamGreen 0:616601bde9fb 182 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 183
AdamGreen 0:616601bde9fb 184 /* Bits in auth_pending[] */
AdamGreen 0:616601bde9fb 185 #define PAP_WITHPEER 1
AdamGreen 0:616601bde9fb 186 #define PAP_PEER 2
AdamGreen 0:616601bde9fb 187 #define CHAP_WITHPEER 4
AdamGreen 0:616601bde9fb 188 #define CHAP_PEER 8
AdamGreen 0:616601bde9fb 189
AdamGreen 0:616601bde9fb 190 /* @todo, move this somewhere */
AdamGreen 0:616601bde9fb 191 /* Used for storing a sequence of words. Usually malloced. */
AdamGreen 0:616601bde9fb 192 struct wordlist {
AdamGreen 0:616601bde9fb 193 struct wordlist *next;
AdamGreen 0:616601bde9fb 194 char word[1];
AdamGreen 0:616601bde9fb 195 };
AdamGreen 0:616601bde9fb 196
AdamGreen 0:616601bde9fb 197
AdamGreen 0:616601bde9fb 198 extern char *crypt (const char *, const char *);
AdamGreen 0:616601bde9fb 199
AdamGreen 0:616601bde9fb 200 /* Prototypes for procedures local to this file. */
AdamGreen 0:616601bde9fb 201
AdamGreen 0:616601bde9fb 202 static void network_phase (int);
AdamGreen 0:616601bde9fb 203 static void check_idle (void *);
AdamGreen 0:616601bde9fb 204 static void connect_time_expired (void *);
AdamGreen 0:616601bde9fb 205 #if 0
AdamGreen 0:616601bde9fb 206 static int plogin (char *, char *, char **, int *);
AdamGreen 0:616601bde9fb 207 #endif
AdamGreen 0:616601bde9fb 208 static void plogout (void);
AdamGreen 0:616601bde9fb 209 static int null_login (int);
AdamGreen 0:616601bde9fb 210 static int get_pap_passwd (int, char *, char *);
AdamGreen 0:616601bde9fb 211 static int have_pap_secret (void);
AdamGreen 0:616601bde9fb 212 static int have_chap_secret (char *, char *, u32_t);
AdamGreen 0:616601bde9fb 213 static int ip_addr_check (u32_t, struct wordlist *);
AdamGreen 0:616601bde9fb 214
AdamGreen 0:616601bde9fb 215 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 216 static int scan_authfile (FILE *, char *, char *, char *,
AdamGreen 0:616601bde9fb 217 struct wordlist **, struct wordlist **,
AdamGreen 0:616601bde9fb 218 char *);
AdamGreen 0:616601bde9fb 219 static void free_wordlist (struct wordlist *);
AdamGreen 0:616601bde9fb 220 static void auth_script (char *);
AdamGreen 0:616601bde9fb 221 static void auth_script_done (void *);
AdamGreen 0:616601bde9fb 222 static void set_allowed_addrs (int unit, struct wordlist *addrs);
AdamGreen 0:616601bde9fb 223 static int some_ip_ok (struct wordlist *);
AdamGreen 0:616601bde9fb 224 static int setupapfile (char **);
AdamGreen 0:616601bde9fb 225 static int privgroup (char **);
AdamGreen 0:616601bde9fb 226 static int set_noauth_addr (char **);
AdamGreen 0:616601bde9fb 227 static void check_access (FILE *, char *);
AdamGreen 0:616601bde9fb 228 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 229
AdamGreen 0:616601bde9fb 230 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 231 /*
AdamGreen 0:616601bde9fb 232 * Authentication-related options.
AdamGreen 0:616601bde9fb 233 */
AdamGreen 0:616601bde9fb 234 option_t auth_options[] = {
AdamGreen 0:616601bde9fb 235 { "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
AdamGreen 0:616601bde9fb 236 "Require PAP authentication from peer", 1, &auth_required },
AdamGreen 0:616601bde9fb 237 { "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
AdamGreen 0:616601bde9fb 238 "Require PAP authentication from peer", 1, &auth_required },
AdamGreen 0:616601bde9fb 239 { "refuse-pap", o_bool, &refuse_pap,
AdamGreen 0:616601bde9fb 240 "Don't agree to auth to peer with PAP", 1 },
AdamGreen 0:616601bde9fb 241 { "-pap", o_bool, &refuse_pap,
AdamGreen 0:616601bde9fb 242 "Don't allow PAP authentication with peer", 1 },
AdamGreen 0:616601bde9fb 243 { "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
AdamGreen 0:616601bde9fb 244 "Require CHAP authentication from peer", 1, &auth_required },
AdamGreen 0:616601bde9fb 245 { "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
AdamGreen 0:616601bde9fb 246 "Require CHAP authentication from peer", 1, &auth_required },
AdamGreen 0:616601bde9fb 247 { "refuse-chap", o_bool, &refuse_chap,
AdamGreen 0:616601bde9fb 248 "Don't agree to auth to peer with CHAP", 1 },
AdamGreen 0:616601bde9fb 249 { "-chap", o_bool, &refuse_chap,
AdamGreen 0:616601bde9fb 250 "Don't allow CHAP authentication with peer", 1 },
AdamGreen 0:616601bde9fb 251 { "name", o_string, our_name,
AdamGreen 0:616601bde9fb 252 "Set local name for authentication",
AdamGreen 0:616601bde9fb 253 OPT_PRIV|OPT_STATIC, NULL, MAXNAMELEN },
AdamGreen 0:616601bde9fb 254 { "user", o_string, user,
AdamGreen 0:616601bde9fb 255 "Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
AdamGreen 0:616601bde9fb 256 { "usehostname", o_bool, &usehostname,
AdamGreen 0:616601bde9fb 257 "Must use hostname for authentication", 1 },
AdamGreen 0:616601bde9fb 258 { "remotename", o_string, remote_name,
AdamGreen 0:616601bde9fb 259 "Set remote name for authentication", OPT_STATIC,
AdamGreen 0:616601bde9fb 260 &explicit_remote, MAXNAMELEN },
AdamGreen 0:616601bde9fb 261 { "auth", o_bool, &auth_required,
AdamGreen 0:616601bde9fb 262 "Require authentication from peer", 1 },
AdamGreen 0:616601bde9fb 263 { "noauth", o_bool, &auth_required,
AdamGreen 0:616601bde9fb 264 "Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
AdamGreen 0:616601bde9fb 265 { "login", o_bool, &uselogin,
AdamGreen 0:616601bde9fb 266 "Use system password database for PAP", 1 },
AdamGreen 0:616601bde9fb 267 { "papcrypt", o_bool, &cryptpap,
AdamGreen 0:616601bde9fb 268 "PAP passwords are encrypted", 1 },
AdamGreen 0:616601bde9fb 269 { "+ua", o_special, (void *)setupapfile,
AdamGreen 0:616601bde9fb 270 "Get PAP user and password from file" },
AdamGreen 0:616601bde9fb 271 { "password", o_string, passwd,
AdamGreen 0:616601bde9fb 272 "Password for authenticating us to the peer", OPT_STATIC,
AdamGreen 0:616601bde9fb 273 NULL, MAXSECRETLEN },
AdamGreen 0:616601bde9fb 274 { "privgroup", o_special, (void *)privgroup,
AdamGreen 0:616601bde9fb 275 "Allow group members to use privileged options", OPT_PRIV },
AdamGreen 0:616601bde9fb 276 { "allow-ip", o_special, (void *)set_noauth_addr,
AdamGreen 0:616601bde9fb 277 "Set IP address(es) which can be used without authentication",
AdamGreen 0:616601bde9fb 278 OPT_PRIV },
AdamGreen 0:616601bde9fb 279 { NULL }
AdamGreen 0:616601bde9fb 280 };
AdamGreen 0:616601bde9fb 281 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 282 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 283 /*
AdamGreen 0:616601bde9fb 284 * setupapfile - specifies UPAP info for authenticating with peer.
AdamGreen 0:616601bde9fb 285 */
AdamGreen 0:616601bde9fb 286 static int
AdamGreen 0:616601bde9fb 287 setupapfile(char **argv)
AdamGreen 0:616601bde9fb 288 {
AdamGreen 0:616601bde9fb 289 FILE * ufile;
AdamGreen 0:616601bde9fb 290 int l;
AdamGreen 0:616601bde9fb 291
AdamGreen 0:616601bde9fb 292 lcp_allowoptions[0].neg_upap = 1;
AdamGreen 0:616601bde9fb 293
AdamGreen 0:616601bde9fb 294 /* open user info file */
AdamGreen 0:616601bde9fb 295 seteuid(getuid());
AdamGreen 0:616601bde9fb 296 ufile = fopen(*argv, "r");
AdamGreen 0:616601bde9fb 297 seteuid(0);
AdamGreen 0:616601bde9fb 298 if (ufile == NULL) {
AdamGreen 0:616601bde9fb 299 option_error("unable to open user login data file %s", *argv);
AdamGreen 0:616601bde9fb 300 return 0;
AdamGreen 0:616601bde9fb 301 }
AdamGreen 0:616601bde9fb 302 check_access(ufile, *argv);
AdamGreen 0:616601bde9fb 303
AdamGreen 0:616601bde9fb 304 /* get username */
AdamGreen 0:616601bde9fb 305 if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
AdamGreen 0:616601bde9fb 306 || fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
AdamGreen 0:616601bde9fb 307 option_error("unable to read user login data file %s", *argv);
AdamGreen 0:616601bde9fb 308 return 0;
AdamGreen 0:616601bde9fb 309 }
AdamGreen 0:616601bde9fb 310 fclose(ufile);
AdamGreen 0:616601bde9fb 311
AdamGreen 0:616601bde9fb 312 /* get rid of newlines */
AdamGreen 0:616601bde9fb 313 l = strlen(user);
AdamGreen 0:616601bde9fb 314 if (l > 0 && user[l-1] == '\n')
AdamGreen 0:616601bde9fb 315 user[l-1] = 0;
AdamGreen 0:616601bde9fb 316 l = strlen(passwd);
AdamGreen 0:616601bde9fb 317 if (l > 0 && passwd[l-1] == '\n')
AdamGreen 0:616601bde9fb 318 passwd[l-1] = 0;
AdamGreen 0:616601bde9fb 319
AdamGreen 0:616601bde9fb 320 return (1);
AdamGreen 0:616601bde9fb 321 }
AdamGreen 0:616601bde9fb 322 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 323
AdamGreen 0:616601bde9fb 324 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 325 /*
AdamGreen 0:616601bde9fb 326 * privgroup - allow members of the group to have privileged access.
AdamGreen 0:616601bde9fb 327 */
AdamGreen 0:616601bde9fb 328 static int
AdamGreen 0:616601bde9fb 329 privgroup(char **argv)
AdamGreen 0:616601bde9fb 330 {
AdamGreen 0:616601bde9fb 331 struct group *g;
AdamGreen 0:616601bde9fb 332 int i;
AdamGreen 0:616601bde9fb 333
AdamGreen 0:616601bde9fb 334 g = getgrnam(*argv);
AdamGreen 0:616601bde9fb 335 if (g == 0) {
AdamGreen 0:616601bde9fb 336 option_error("group %s is unknown", *argv);
AdamGreen 0:616601bde9fb 337 return 0;
AdamGreen 0:616601bde9fb 338 }
AdamGreen 0:616601bde9fb 339 for (i = 0; i < ngroups; ++i) {
AdamGreen 0:616601bde9fb 340 if (groups[i] == g->gr_gid) {
AdamGreen 0:616601bde9fb 341 privileged = 1;
AdamGreen 0:616601bde9fb 342 break;
AdamGreen 0:616601bde9fb 343 }
AdamGreen 0:616601bde9fb 344 }
AdamGreen 0:616601bde9fb 345 return 1;
AdamGreen 0:616601bde9fb 346 }
AdamGreen 0:616601bde9fb 347 #endif
AdamGreen 0:616601bde9fb 348
AdamGreen 0:616601bde9fb 349 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 350 /*
AdamGreen 0:616601bde9fb 351 * set_noauth_addr - set address(es) that can be used without authentication.
AdamGreen 0:616601bde9fb 352 * Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
AdamGreen 0:616601bde9fb 353 */
AdamGreen 0:616601bde9fb 354 static int
AdamGreen 0:616601bde9fb 355 set_noauth_addr(char **argv)
AdamGreen 0:616601bde9fb 356 {
AdamGreen 0:616601bde9fb 357 char *addr = *argv;
AdamGreen 0:616601bde9fb 358 int l = strlen(addr);
AdamGreen 0:616601bde9fb 359 struct wordlist *wp;
AdamGreen 0:616601bde9fb 360
AdamGreen 0:616601bde9fb 361 wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
AdamGreen 0:616601bde9fb 362 if (wp == NULL)
AdamGreen 0:616601bde9fb 363 novm("allow-ip argument");
AdamGreen 0:616601bde9fb 364 wp->word = (char *) (wp + 1);
AdamGreen 0:616601bde9fb 365 wp->next = noauth_addrs;
AdamGreen 0:616601bde9fb 366 BCOPY(addr, wp->word, l);
AdamGreen 0:616601bde9fb 367 noauth_addrs = wp;
AdamGreen 0:616601bde9fb 368 return 1;
AdamGreen 0:616601bde9fb 369 }
AdamGreen 0:616601bde9fb 370 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 371
AdamGreen 0:616601bde9fb 372 /*
AdamGreen 0:616601bde9fb 373 * An Open on LCP has requested a change from Dead to Establish phase.
AdamGreen 0:616601bde9fb 374 * Do what's necessary to bring the physical layer up.
AdamGreen 0:616601bde9fb 375 */
AdamGreen 0:616601bde9fb 376 void
AdamGreen 0:616601bde9fb 377 link_required(int unit)
AdamGreen 0:616601bde9fb 378 {
AdamGreen 0:616601bde9fb 379 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 380
AdamGreen 0:616601bde9fb 381 AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
AdamGreen 0:616601bde9fb 382 }
AdamGreen 0:616601bde9fb 383
AdamGreen 0:616601bde9fb 384 /*
AdamGreen 0:616601bde9fb 385 * LCP has terminated the link; go to the Dead phase and take the
AdamGreen 0:616601bde9fb 386 * physical layer down.
AdamGreen 0:616601bde9fb 387 */
AdamGreen 0:616601bde9fb 388 void
AdamGreen 0:616601bde9fb 389 link_terminated(int unit)
AdamGreen 0:616601bde9fb 390 {
AdamGreen 0:616601bde9fb 391 AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
AdamGreen 0:616601bde9fb 392 if (lcp_phase[unit] == PHASE_DEAD) {
AdamGreen 0:616601bde9fb 393 return;
AdamGreen 0:616601bde9fb 394 }
AdamGreen 0:616601bde9fb 395 if (logged_in) {
AdamGreen 0:616601bde9fb 396 plogout();
AdamGreen 0:616601bde9fb 397 }
AdamGreen 0:616601bde9fb 398 lcp_phase[unit] = PHASE_DEAD;
AdamGreen 0:616601bde9fb 399 AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
AdamGreen 0:616601bde9fb 400 pppLinkTerminated(unit);
AdamGreen 0:616601bde9fb 401 }
AdamGreen 0:616601bde9fb 402
AdamGreen 0:616601bde9fb 403 /*
AdamGreen 0:616601bde9fb 404 * LCP has gone down; it will either die or try to re-establish.
AdamGreen 0:616601bde9fb 405 */
AdamGreen 0:616601bde9fb 406 void
AdamGreen 0:616601bde9fb 407 link_down(int unit)
AdamGreen 0:616601bde9fb 408 {
AdamGreen 0:616601bde9fb 409 int i;
AdamGreen 0:616601bde9fb 410 struct protent *protp;
AdamGreen 0:616601bde9fb 411
AdamGreen 0:616601bde9fb 412 AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
AdamGreen 0:616601bde9fb 413
AdamGreen 0:616601bde9fb 414 if (did_authup) {
AdamGreen 0:616601bde9fb 415 /* XXX Do link down processing. */
AdamGreen 0:616601bde9fb 416 did_authup = 0;
AdamGreen 0:616601bde9fb 417 }
AdamGreen 0:616601bde9fb 418 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
AdamGreen 0:616601bde9fb 419 if (!protp->enabled_flag) {
AdamGreen 0:616601bde9fb 420 continue;
AdamGreen 0:616601bde9fb 421 }
AdamGreen 0:616601bde9fb 422 if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
AdamGreen 0:616601bde9fb 423 (*protp->lowerdown)(unit);
AdamGreen 0:616601bde9fb 424 }
AdamGreen 0:616601bde9fb 425 if (protp->protocol < 0xC000 && protp->close != NULL) {
AdamGreen 0:616601bde9fb 426 (*protp->close)(unit, "LCP down");
AdamGreen 0:616601bde9fb 427 }
AdamGreen 0:616601bde9fb 428 }
AdamGreen 0:616601bde9fb 429 num_np_open = 0; /* number of network protocols we have opened */
AdamGreen 0:616601bde9fb 430 num_np_up = 0; /* Number of network protocols which have come up */
AdamGreen 0:616601bde9fb 431
AdamGreen 0:616601bde9fb 432 if (lcp_phase[unit] != PHASE_DEAD) {
AdamGreen 0:616601bde9fb 433 lcp_phase[unit] = PHASE_TERMINATE;
AdamGreen 0:616601bde9fb 434 }
AdamGreen 0:616601bde9fb 435 pppLinkDown(unit);
AdamGreen 0:616601bde9fb 436 }
AdamGreen 0:616601bde9fb 437
AdamGreen 0:616601bde9fb 438 /*
AdamGreen 0:616601bde9fb 439 * The link is established.
AdamGreen 0:616601bde9fb 440 * Proceed to the Dead, Authenticate or Network phase as appropriate.
AdamGreen 0:616601bde9fb 441 */
AdamGreen 0:616601bde9fb 442 void
AdamGreen 0:616601bde9fb 443 link_established(int unit)
AdamGreen 0:616601bde9fb 444 {
AdamGreen 0:616601bde9fb 445 int auth;
AdamGreen 0:616601bde9fb 446 int i;
AdamGreen 0:616601bde9fb 447 struct protent *protp;
AdamGreen 0:616601bde9fb 448 lcp_options *wo = &lcp_wantoptions[unit];
AdamGreen 0:616601bde9fb 449 lcp_options *go = &lcp_gotoptions[unit];
AdamGreen 0:616601bde9fb 450 #if PAP_SUPPORT || CHAP_SUPPORT
AdamGreen 0:616601bde9fb 451 lcp_options *ho = &lcp_hisoptions[unit];
AdamGreen 0:616601bde9fb 452 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 453
AdamGreen 0:616601bde9fb 454 AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
AdamGreen 0:616601bde9fb 455 /*
AdamGreen 0:616601bde9fb 456 * Tell higher-level protocols that LCP is up.
AdamGreen 0:616601bde9fb 457 */
AdamGreen 0:616601bde9fb 458 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
AdamGreen 0:616601bde9fb 459 if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
AdamGreen 0:616601bde9fb 460 (*protp->lowerup)(unit);
AdamGreen 0:616601bde9fb 461 }
AdamGreen 0:616601bde9fb 462 }
AdamGreen 0:616601bde9fb 463 if (ppp_settings.auth_required && !(go->neg_chap || go->neg_upap)) {
AdamGreen 0:616601bde9fb 464 /*
AdamGreen 0:616601bde9fb 465 * We wanted the peer to authenticate itself, and it refused:
AdamGreen 0:616601bde9fb 466 * treat it as though it authenticated with PAP using a username
AdamGreen 0:616601bde9fb 467 * of "" and a password of "". If that's not OK, boot it out.
AdamGreen 0:616601bde9fb 468 */
AdamGreen 0:616601bde9fb 469 if (!wo->neg_upap || !null_login(unit)) {
AdamGreen 0:616601bde9fb 470 AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
AdamGreen 0:616601bde9fb 471 lcp_close(unit, "peer refused to authenticate");
AdamGreen 0:616601bde9fb 472 return;
AdamGreen 0:616601bde9fb 473 }
AdamGreen 0:616601bde9fb 474 }
AdamGreen 0:616601bde9fb 475
AdamGreen 0:616601bde9fb 476 lcp_phase[unit] = PHASE_AUTHENTICATE;
AdamGreen 0:616601bde9fb 477 auth = 0;
AdamGreen 0:616601bde9fb 478 #if CHAP_SUPPORT
AdamGreen 0:616601bde9fb 479 if (go->neg_chap) {
AdamGreen 0:616601bde9fb 480 ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
AdamGreen 0:616601bde9fb 481 auth |= CHAP_PEER;
AdamGreen 0:616601bde9fb 482 }
AdamGreen 0:616601bde9fb 483 #endif /* CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 484 #if PAP_SUPPORT && CHAP_SUPPORT
AdamGreen 0:616601bde9fb 485 else
AdamGreen 0:616601bde9fb 486 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 487 #if PAP_SUPPORT
AdamGreen 0:616601bde9fb 488 if (go->neg_upap) {
AdamGreen 0:616601bde9fb 489 upap_authpeer(unit);
AdamGreen 0:616601bde9fb 490 auth |= PAP_PEER;
AdamGreen 0:616601bde9fb 491 }
AdamGreen 0:616601bde9fb 492 #endif /* PAP_SUPPORT */
AdamGreen 0:616601bde9fb 493 #if CHAP_SUPPORT
AdamGreen 0:616601bde9fb 494 if (ho->neg_chap) {
AdamGreen 0:616601bde9fb 495 ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
AdamGreen 0:616601bde9fb 496 auth |= CHAP_WITHPEER;
AdamGreen 0:616601bde9fb 497 }
AdamGreen 0:616601bde9fb 498 #endif /* CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 499 #if PAP_SUPPORT && CHAP_SUPPORT
AdamGreen 0:616601bde9fb 500 else
AdamGreen 0:616601bde9fb 501 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 502 #if PAP_SUPPORT
AdamGreen 0:616601bde9fb 503 if (ho->neg_upap) {
AdamGreen 0:616601bde9fb 504 if (ppp_settings.passwd[0] == 0) {
AdamGreen 0:616601bde9fb 505 passwd_from_file = 1;
AdamGreen 0:616601bde9fb 506 if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
AdamGreen 0:616601bde9fb 507 AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
AdamGreen 0:616601bde9fb 508 }
AdamGreen 0:616601bde9fb 509 }
AdamGreen 0:616601bde9fb 510 upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
AdamGreen 0:616601bde9fb 511 auth |= PAP_WITHPEER;
AdamGreen 0:616601bde9fb 512 }
AdamGreen 0:616601bde9fb 513 #endif /* PAP_SUPPORT */
AdamGreen 0:616601bde9fb 514 auth_pending[unit] = auth;
AdamGreen 0:616601bde9fb 515
AdamGreen 0:616601bde9fb 516 if (!auth) {
AdamGreen 0:616601bde9fb 517 network_phase(unit);
AdamGreen 0:616601bde9fb 518 }
AdamGreen 0:616601bde9fb 519 }
AdamGreen 0:616601bde9fb 520
AdamGreen 0:616601bde9fb 521 /*
AdamGreen 0:616601bde9fb 522 * Proceed to the network phase.
AdamGreen 0:616601bde9fb 523 */
AdamGreen 0:616601bde9fb 524 static void
AdamGreen 0:616601bde9fb 525 network_phase(int unit)
AdamGreen 0:616601bde9fb 526 {
AdamGreen 0:616601bde9fb 527 int i;
AdamGreen 0:616601bde9fb 528 struct protent *protp;
AdamGreen 0:616601bde9fb 529 lcp_options *go = &lcp_gotoptions[unit];
AdamGreen 0:616601bde9fb 530
AdamGreen 0:616601bde9fb 531 /*
AdamGreen 0:616601bde9fb 532 * If the peer had to authenticate, run the auth-up script now.
AdamGreen 0:616601bde9fb 533 */
AdamGreen 0:616601bde9fb 534 if ((go->neg_chap || go->neg_upap) && !did_authup) {
AdamGreen 0:616601bde9fb 535 /* XXX Do setup for peer authentication. */
AdamGreen 0:616601bde9fb 536 did_authup = 1;
AdamGreen 0:616601bde9fb 537 }
AdamGreen 0:616601bde9fb 538
AdamGreen 0:616601bde9fb 539 #if CBCP_SUPPORT
AdamGreen 0:616601bde9fb 540 /*
AdamGreen 0:616601bde9fb 541 * If we negotiated callback, do it now.
AdamGreen 0:616601bde9fb 542 */
AdamGreen 0:616601bde9fb 543 if (go->neg_cbcp) {
AdamGreen 0:616601bde9fb 544 lcp_phase[unit] = PHASE_CALLBACK;
AdamGreen 0:616601bde9fb 545 (*cbcp_protent.open)(unit);
AdamGreen 0:616601bde9fb 546 return;
AdamGreen 0:616601bde9fb 547 }
AdamGreen 0:616601bde9fb 548 #endif /* CBCP_SUPPORT */
AdamGreen 0:616601bde9fb 549
AdamGreen 0:616601bde9fb 550 lcp_phase[unit] = PHASE_NETWORK;
AdamGreen 0:616601bde9fb 551 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
AdamGreen 0:616601bde9fb 552 if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
AdamGreen 0:616601bde9fb 553 (*protp->open)(unit);
AdamGreen 0:616601bde9fb 554 if (protp->protocol != PPP_CCP) {
AdamGreen 0:616601bde9fb 555 ++num_np_open;
AdamGreen 0:616601bde9fb 556 }
AdamGreen 0:616601bde9fb 557 }
AdamGreen 0:616601bde9fb 558 }
AdamGreen 0:616601bde9fb 559
AdamGreen 0:616601bde9fb 560 if (num_np_open == 0) {
AdamGreen 0:616601bde9fb 561 /* nothing to do */
AdamGreen 0:616601bde9fb 562 lcp_close(0, "No network protocols running");
AdamGreen 0:616601bde9fb 563 }
AdamGreen 0:616601bde9fb 564 }
AdamGreen 0:616601bde9fb 565 /* @todo: add void start_networks(void) here (pppd 2.3.11) */
AdamGreen 0:616601bde9fb 566
AdamGreen 0:616601bde9fb 567 /*
AdamGreen 0:616601bde9fb 568 * The peer has failed to authenticate himself using `protocol'.
AdamGreen 0:616601bde9fb 569 */
AdamGreen 0:616601bde9fb 570 void
AdamGreen 0:616601bde9fb 571 auth_peer_fail(int unit, u16_t protocol)
AdamGreen 0:616601bde9fb 572 {
AdamGreen 0:616601bde9fb 573 LWIP_UNUSED_ARG(protocol);
AdamGreen 0:616601bde9fb 574
AdamGreen 0:616601bde9fb 575 AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
AdamGreen 0:616601bde9fb 576 /*
AdamGreen 0:616601bde9fb 577 * Authentication failure: take the link down
AdamGreen 0:616601bde9fb 578 */
AdamGreen 0:616601bde9fb 579 lcp_close(unit, "Authentication failed");
AdamGreen 0:616601bde9fb 580 }
AdamGreen 0:616601bde9fb 581
AdamGreen 0:616601bde9fb 582
AdamGreen 0:616601bde9fb 583 #if PAP_SUPPORT || CHAP_SUPPORT
AdamGreen 0:616601bde9fb 584 /*
AdamGreen 0:616601bde9fb 585 * The peer has been successfully authenticated using `protocol'.
AdamGreen 0:616601bde9fb 586 */
AdamGreen 0:616601bde9fb 587 void
AdamGreen 0:616601bde9fb 588 auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
AdamGreen 0:616601bde9fb 589 {
AdamGreen 0:616601bde9fb 590 int pbit;
AdamGreen 0:616601bde9fb 591
AdamGreen 0:616601bde9fb 592 AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
AdamGreen 0:616601bde9fb 593 switch (protocol) {
AdamGreen 0:616601bde9fb 594 case PPP_CHAP:
AdamGreen 0:616601bde9fb 595 pbit = CHAP_PEER;
AdamGreen 0:616601bde9fb 596 break;
AdamGreen 0:616601bde9fb 597 case PPP_PAP:
AdamGreen 0:616601bde9fb 598 pbit = PAP_PEER;
AdamGreen 0:616601bde9fb 599 break;
AdamGreen 0:616601bde9fb 600 default:
AdamGreen 0:616601bde9fb 601 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
AdamGreen 0:616601bde9fb 602 return;
AdamGreen 0:616601bde9fb 603 }
AdamGreen 0:616601bde9fb 604
AdamGreen 0:616601bde9fb 605 /*
AdamGreen 0:616601bde9fb 606 * Save the authenticated name of the peer for later.
AdamGreen 0:616601bde9fb 607 */
AdamGreen 0:616601bde9fb 608 if (namelen > (int)sizeof(peer_authname) - 1) {
AdamGreen 0:616601bde9fb 609 namelen = sizeof(peer_authname) - 1;
AdamGreen 0:616601bde9fb 610 }
AdamGreen 0:616601bde9fb 611 BCOPY(name, peer_authname, namelen);
AdamGreen 0:616601bde9fb 612 peer_authname[namelen] = 0;
AdamGreen 0:616601bde9fb 613
AdamGreen 0:616601bde9fb 614 /*
AdamGreen 0:616601bde9fb 615 * If there is no more authentication still to be done,
AdamGreen 0:616601bde9fb 616 * proceed to the network (or callback) phase.
AdamGreen 0:616601bde9fb 617 */
AdamGreen 0:616601bde9fb 618 if ((auth_pending[unit] &= ~pbit) == 0) {
AdamGreen 0:616601bde9fb 619 network_phase(unit);
AdamGreen 0:616601bde9fb 620 }
AdamGreen 0:616601bde9fb 621 }
AdamGreen 0:616601bde9fb 622
AdamGreen 0:616601bde9fb 623 /*
AdamGreen 0:616601bde9fb 624 * We have failed to authenticate ourselves to the peer using `protocol'.
AdamGreen 0:616601bde9fb 625 */
AdamGreen 0:616601bde9fb 626 void
AdamGreen 0:616601bde9fb 627 auth_withpeer_fail(int unit, u16_t protocol)
AdamGreen 0:616601bde9fb 628 {
AdamGreen 0:616601bde9fb 629 int errCode = PPPERR_AUTHFAIL;
AdamGreen 0:616601bde9fb 630
AdamGreen 0:616601bde9fb 631 LWIP_UNUSED_ARG(protocol);
AdamGreen 0:616601bde9fb 632
AdamGreen 0:616601bde9fb 633 AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
AdamGreen 0:616601bde9fb 634 if (passwd_from_file) {
AdamGreen 0:616601bde9fb 635 BZERO(ppp_settings.passwd, MAXSECRETLEN);
AdamGreen 0:616601bde9fb 636 }
AdamGreen 0:616601bde9fb 637
AdamGreen 0:616601bde9fb 638 /*
AdamGreen 0:616601bde9fb 639 * We've failed to authenticate ourselves to our peer.
AdamGreen 0:616601bde9fb 640 * He'll probably take the link down, and there's not much
AdamGreen 0:616601bde9fb 641 * we can do except wait for that.
AdamGreen 0:616601bde9fb 642 */
AdamGreen 0:616601bde9fb 643 pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
AdamGreen 0:616601bde9fb 644 lcp_close(unit, "Failed to authenticate ourselves to peer");
AdamGreen 0:616601bde9fb 645 }
AdamGreen 0:616601bde9fb 646
AdamGreen 0:616601bde9fb 647 /*
AdamGreen 0:616601bde9fb 648 * We have successfully authenticated ourselves with the peer using `protocol'.
AdamGreen 0:616601bde9fb 649 */
AdamGreen 0:616601bde9fb 650 void
AdamGreen 0:616601bde9fb 651 auth_withpeer_success(int unit, u16_t protocol)
AdamGreen 0:616601bde9fb 652 {
AdamGreen 0:616601bde9fb 653 int pbit;
AdamGreen 0:616601bde9fb 654
AdamGreen 0:616601bde9fb 655 AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
AdamGreen 0:616601bde9fb 656 switch (protocol) {
AdamGreen 0:616601bde9fb 657 case PPP_CHAP:
AdamGreen 0:616601bde9fb 658 pbit = CHAP_WITHPEER;
AdamGreen 0:616601bde9fb 659 break;
AdamGreen 0:616601bde9fb 660 case PPP_PAP:
AdamGreen 0:616601bde9fb 661 if (passwd_from_file) {
AdamGreen 0:616601bde9fb 662 BZERO(ppp_settings.passwd, MAXSECRETLEN);
AdamGreen 0:616601bde9fb 663 }
AdamGreen 0:616601bde9fb 664 pbit = PAP_WITHPEER;
AdamGreen 0:616601bde9fb 665 break;
AdamGreen 0:616601bde9fb 666 default:
AdamGreen 0:616601bde9fb 667 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
AdamGreen 0:616601bde9fb 668 pbit = 0;
AdamGreen 0:616601bde9fb 669 }
AdamGreen 0:616601bde9fb 670
AdamGreen 0:616601bde9fb 671 /*
AdamGreen 0:616601bde9fb 672 * If there is no more authentication still being done,
AdamGreen 0:616601bde9fb 673 * proceed to the network (or callback) phase.
AdamGreen 0:616601bde9fb 674 */
AdamGreen 0:616601bde9fb 675 if ((auth_pending[unit] &= ~pbit) == 0) {
AdamGreen 0:616601bde9fb 676 network_phase(unit);
AdamGreen 0:616601bde9fb 677 }
AdamGreen 0:616601bde9fb 678 }
AdamGreen 0:616601bde9fb 679 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 680
AdamGreen 0:616601bde9fb 681
AdamGreen 0:616601bde9fb 682 /*
AdamGreen 0:616601bde9fb 683 * np_up - a network protocol has come up.
AdamGreen 0:616601bde9fb 684 */
AdamGreen 0:616601bde9fb 685 void
AdamGreen 0:616601bde9fb 686 np_up(int unit, u16_t proto)
AdamGreen 0:616601bde9fb 687 {
AdamGreen 0:616601bde9fb 688 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 689 LWIP_UNUSED_ARG(proto);
AdamGreen 0:616601bde9fb 690
AdamGreen 0:616601bde9fb 691 AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
AdamGreen 0:616601bde9fb 692 if (num_np_up == 0) {
AdamGreen 0:616601bde9fb 693 AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
AdamGreen 0:616601bde9fb 694 /*
AdamGreen 0:616601bde9fb 695 * At this point we consider that the link has come up successfully.
AdamGreen 0:616601bde9fb 696 */
AdamGreen 0:616601bde9fb 697 if (ppp_settings.idle_time_limit > 0) {
AdamGreen 0:616601bde9fb 698 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
AdamGreen 0:616601bde9fb 699 }
AdamGreen 0:616601bde9fb 700
AdamGreen 0:616601bde9fb 701 /*
AdamGreen 0:616601bde9fb 702 * Set a timeout to close the connection once the maximum
AdamGreen 0:616601bde9fb 703 * connect time has expired.
AdamGreen 0:616601bde9fb 704 */
AdamGreen 0:616601bde9fb 705 if (ppp_settings.maxconnect > 0) {
AdamGreen 0:616601bde9fb 706 TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
AdamGreen 0:616601bde9fb 707 }
AdamGreen 0:616601bde9fb 708 }
AdamGreen 0:616601bde9fb 709 ++num_np_up;
AdamGreen 0:616601bde9fb 710 }
AdamGreen 0:616601bde9fb 711
AdamGreen 0:616601bde9fb 712 /*
AdamGreen 0:616601bde9fb 713 * np_down - a network protocol has gone down.
AdamGreen 0:616601bde9fb 714 */
AdamGreen 0:616601bde9fb 715 void
AdamGreen 0:616601bde9fb 716 np_down(int unit, u16_t proto)
AdamGreen 0:616601bde9fb 717 {
AdamGreen 0:616601bde9fb 718 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 719 LWIP_UNUSED_ARG(proto);
AdamGreen 0:616601bde9fb 720
AdamGreen 0:616601bde9fb 721 AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
AdamGreen 0:616601bde9fb 722 if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
AdamGreen 0:616601bde9fb 723 UNTIMEOUT(check_idle, NULL);
AdamGreen 0:616601bde9fb 724 }
AdamGreen 0:616601bde9fb 725 }
AdamGreen 0:616601bde9fb 726
AdamGreen 0:616601bde9fb 727 /*
AdamGreen 0:616601bde9fb 728 * np_finished - a network protocol has finished using the link.
AdamGreen 0:616601bde9fb 729 */
AdamGreen 0:616601bde9fb 730 void
AdamGreen 0:616601bde9fb 731 np_finished(int unit, u16_t proto)
AdamGreen 0:616601bde9fb 732 {
AdamGreen 0:616601bde9fb 733 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 734 LWIP_UNUSED_ARG(proto);
AdamGreen 0:616601bde9fb 735
AdamGreen 0:616601bde9fb 736 AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
AdamGreen 0:616601bde9fb 737 if (--num_np_open <= 0) {
AdamGreen 0:616601bde9fb 738 /* no further use for the link: shut up shop. */
AdamGreen 0:616601bde9fb 739 lcp_close(0, "No network protocols running");
AdamGreen 0:616601bde9fb 740 }
AdamGreen 0:616601bde9fb 741 }
AdamGreen 0:616601bde9fb 742
AdamGreen 0:616601bde9fb 743 /*
AdamGreen 0:616601bde9fb 744 * check_idle - check whether the link has been idle for long
AdamGreen 0:616601bde9fb 745 * enough that we can shut it down.
AdamGreen 0:616601bde9fb 746 */
AdamGreen 0:616601bde9fb 747 static void
AdamGreen 0:616601bde9fb 748 check_idle(void *arg)
AdamGreen 0:616601bde9fb 749 {
AdamGreen 0:616601bde9fb 750 struct ppp_idle idle;
AdamGreen 0:616601bde9fb 751 u_short itime;
AdamGreen 0:616601bde9fb 752
AdamGreen 0:616601bde9fb 753 LWIP_UNUSED_ARG(arg);
AdamGreen 0:616601bde9fb 754 if (!get_idle_time(0, &idle)) {
AdamGreen 0:616601bde9fb 755 return;
AdamGreen 0:616601bde9fb 756 }
AdamGreen 0:616601bde9fb 757 itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
AdamGreen 0:616601bde9fb 758 if (itime >= ppp_settings.idle_time_limit) {
AdamGreen 0:616601bde9fb 759 /* link is idle: shut it down. */
AdamGreen 0:616601bde9fb 760 AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
AdamGreen 0:616601bde9fb 761 lcp_close(0, "Link inactive");
AdamGreen 0:616601bde9fb 762 } else {
AdamGreen 0:616601bde9fb 763 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
AdamGreen 0:616601bde9fb 764 }
AdamGreen 0:616601bde9fb 765 }
AdamGreen 0:616601bde9fb 766
AdamGreen 0:616601bde9fb 767 /*
AdamGreen 0:616601bde9fb 768 * connect_time_expired - log a message and close the connection.
AdamGreen 0:616601bde9fb 769 */
AdamGreen 0:616601bde9fb 770 static void
AdamGreen 0:616601bde9fb 771 connect_time_expired(void *arg)
AdamGreen 0:616601bde9fb 772 {
AdamGreen 0:616601bde9fb 773 LWIP_UNUSED_ARG(arg);
AdamGreen 0:616601bde9fb 774
AdamGreen 0:616601bde9fb 775 AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
AdamGreen 0:616601bde9fb 776 lcp_close(0, "Connect time expired"); /* Close connection */
AdamGreen 0:616601bde9fb 777 }
AdamGreen 0:616601bde9fb 778
AdamGreen 0:616601bde9fb 779 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 780 /*
AdamGreen 0:616601bde9fb 781 * auth_check_options - called to check authentication options.
AdamGreen 0:616601bde9fb 782 */
AdamGreen 0:616601bde9fb 783 void
AdamGreen 0:616601bde9fb 784 auth_check_options(void)
AdamGreen 0:616601bde9fb 785 {
AdamGreen 0:616601bde9fb 786 lcp_options *wo = &lcp_wantoptions[0];
AdamGreen 0:616601bde9fb 787 int can_auth;
AdamGreen 0:616601bde9fb 788 ipcp_options *ipwo = &ipcp_wantoptions[0];
AdamGreen 0:616601bde9fb 789 u32_t remote;
AdamGreen 0:616601bde9fb 790
AdamGreen 0:616601bde9fb 791 /* Default our_name to hostname, and user to our_name */
AdamGreen 0:616601bde9fb 792 if (ppp_settings.our_name[0] == 0 || ppp_settings.usehostname) {
AdamGreen 0:616601bde9fb 793 strcpy(ppp_settings.our_name, ppp_settings.hostname);
AdamGreen 0:616601bde9fb 794 }
AdamGreen 0:616601bde9fb 795
AdamGreen 0:616601bde9fb 796 if (ppp_settings.user[0] == 0) {
AdamGreen 0:616601bde9fb 797 strcpy(ppp_settings.user, ppp_settings.our_name);
AdamGreen 0:616601bde9fb 798 }
AdamGreen 0:616601bde9fb 799
AdamGreen 0:616601bde9fb 800 /* If authentication is required, ask peer for CHAP or PAP. */
AdamGreen 0:616601bde9fb 801 if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
AdamGreen 0:616601bde9fb 802 wo->neg_chap = 1;
AdamGreen 0:616601bde9fb 803 wo->neg_upap = 1;
AdamGreen 0:616601bde9fb 804 }
AdamGreen 0:616601bde9fb 805
AdamGreen 0:616601bde9fb 806 /*
AdamGreen 0:616601bde9fb 807 * Check whether we have appropriate secrets to use
AdamGreen 0:616601bde9fb 808 * to authenticate the peer.
AdamGreen 0:616601bde9fb 809 */
AdamGreen 0:616601bde9fb 810 can_auth = wo->neg_upap && have_pap_secret();
AdamGreen 0:616601bde9fb 811 if (!can_auth && wo->neg_chap) {
AdamGreen 0:616601bde9fb 812 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
AdamGreen 0:616601bde9fb 813 can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
AdamGreen 0:616601bde9fb 814 }
AdamGreen 0:616601bde9fb 815
AdamGreen 0:616601bde9fb 816 if (ppp_settings.auth_required && !can_auth) {
AdamGreen 0:616601bde9fb 817 ppp_panic("No auth secret");
AdamGreen 0:616601bde9fb 818 }
AdamGreen 0:616601bde9fb 819 }
AdamGreen 0:616601bde9fb 820 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 821
AdamGreen 0:616601bde9fb 822 /*
AdamGreen 0:616601bde9fb 823 * auth_reset - called when LCP is starting negotiations to recheck
AdamGreen 0:616601bde9fb 824 * authentication options, i.e. whether we have appropriate secrets
AdamGreen 0:616601bde9fb 825 * to use for authenticating ourselves and/or the peer.
AdamGreen 0:616601bde9fb 826 */
AdamGreen 0:616601bde9fb 827 void
AdamGreen 0:616601bde9fb 828 auth_reset(int unit)
AdamGreen 0:616601bde9fb 829 {
AdamGreen 0:616601bde9fb 830 lcp_options *go = &lcp_gotoptions[unit];
AdamGreen 0:616601bde9fb 831 lcp_options *ao = &lcp_allowoptions[0];
AdamGreen 0:616601bde9fb 832 ipcp_options *ipwo = &ipcp_wantoptions[0];
AdamGreen 0:616601bde9fb 833 u32_t remote;
AdamGreen 0:616601bde9fb 834
AdamGreen 0:616601bde9fb 835 AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
AdamGreen 0:616601bde9fb 836 ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 || get_pap_passwd(unit, NULL, NULL));
AdamGreen 0:616601bde9fb 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)*/;
AdamGreen 0:616601bde9fb 838
AdamGreen 0:616601bde9fb 839 if (go->neg_upap && !have_pap_secret()) {
AdamGreen 0:616601bde9fb 840 go->neg_upap = 0;
AdamGreen 0:616601bde9fb 841 }
AdamGreen 0:616601bde9fb 842 if (go->neg_chap) {
AdamGreen 0:616601bde9fb 843 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
AdamGreen 0:616601bde9fb 844 if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
AdamGreen 0:616601bde9fb 845 go->neg_chap = 0;
AdamGreen 0:616601bde9fb 846 }
AdamGreen 0:616601bde9fb 847 }
AdamGreen 0:616601bde9fb 848 }
AdamGreen 0:616601bde9fb 849
AdamGreen 0:616601bde9fb 850 #if PAP_SUPPORT
AdamGreen 0:616601bde9fb 851 /*
AdamGreen 0:616601bde9fb 852 * check_passwd - Check the user name and passwd against the PAP secrets
AdamGreen 0:616601bde9fb 853 * file. If requested, also check against the system password database,
AdamGreen 0:616601bde9fb 854 * and login the user if OK.
AdamGreen 0:616601bde9fb 855 *
AdamGreen 0:616601bde9fb 856 * returns:
AdamGreen 0:616601bde9fb 857 * UPAP_AUTHNAK: Authentication failed.
AdamGreen 0:616601bde9fb 858 * UPAP_AUTHACK: Authentication succeeded.
AdamGreen 0:616601bde9fb 859 * In either case, msg points to an appropriate message.
AdamGreen 0:616601bde9fb 860 */
AdamGreen 0:616601bde9fb 861 u_char
AdamGreen 0:616601bde9fb 862 check_passwd( int unit, char *auser, int userlen, char *apasswd, int passwdlen, char **msg, int *msglen)
AdamGreen 0:616601bde9fb 863 {
AdamGreen 0:616601bde9fb 864 #if 1 /* XXX Assume all entries OK. */
AdamGreen 0:616601bde9fb 865 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 866 LWIP_UNUSED_ARG(auser);
AdamGreen 0:616601bde9fb 867 LWIP_UNUSED_ARG(userlen);
AdamGreen 0:616601bde9fb 868 LWIP_UNUSED_ARG(apasswd);
AdamGreen 0:616601bde9fb 869 LWIP_UNUSED_ARG(passwdlen);
AdamGreen 0:616601bde9fb 870 LWIP_UNUSED_ARG(msglen);
AdamGreen 0:616601bde9fb 871 *msg = (char *) 0;
AdamGreen 0:616601bde9fb 872 return UPAP_AUTHACK; /* XXX Assume all entries OK. */
AdamGreen 0:616601bde9fb 873 #else
AdamGreen 0:616601bde9fb 874 u_char ret = 0;
AdamGreen 0:616601bde9fb 875 struct wordlist *addrs = NULL;
AdamGreen 0:616601bde9fb 876 char passwd[256], user[256];
AdamGreen 0:616601bde9fb 877 char secret[MAXWORDLEN];
AdamGreen 0:616601bde9fb 878 static u_short attempts = 0;
AdamGreen 0:616601bde9fb 879
AdamGreen 0:616601bde9fb 880 /*
AdamGreen 0:616601bde9fb 881 * Make copies of apasswd and auser, then null-terminate them.
AdamGreen 0:616601bde9fb 882 */
AdamGreen 0:616601bde9fb 883 BCOPY(apasswd, passwd, passwdlen);
AdamGreen 0:616601bde9fb 884 passwd[passwdlen] = '\0';
AdamGreen 0:616601bde9fb 885 BCOPY(auser, user, userlen);
AdamGreen 0:616601bde9fb 886 user[userlen] = '\0';
AdamGreen 0:616601bde9fb 887 *msg = (char *) 0;
AdamGreen 0:616601bde9fb 888
AdamGreen 0:616601bde9fb 889 /* XXX Validate user name and password. */
AdamGreen 0:616601bde9fb 890 ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
AdamGreen 0:616601bde9fb 891
AdamGreen 0:616601bde9fb 892 if (ret == UPAP_AUTHNAK) {
AdamGreen 0:616601bde9fb 893 if (*msg == (char *) 0) {
AdamGreen 0:616601bde9fb 894 *msg = "Login incorrect";
AdamGreen 0:616601bde9fb 895 }
AdamGreen 0:616601bde9fb 896 *msglen = strlen(*msg);
AdamGreen 0:616601bde9fb 897 /*
AdamGreen 0:616601bde9fb 898 * Frustrate passwd stealer programs.
AdamGreen 0:616601bde9fb 899 * Allow 10 tries, but start backing off after 3 (stolen from login).
AdamGreen 0:616601bde9fb 900 * On 10'th, drop the connection.
AdamGreen 0:616601bde9fb 901 */
AdamGreen 0:616601bde9fb 902 if (attempts++ >= 10) {
AdamGreen 0:616601bde9fb 903 AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
AdamGreen 0:616601bde9fb 904 /*ppp_panic("Excess Bad Logins");*/
AdamGreen 0:616601bde9fb 905 }
AdamGreen 0:616601bde9fb 906 if (attempts > 3) {
AdamGreen 0:616601bde9fb 907 /* @todo: this was sleep(), i.e. seconds, not milliseconds
AdamGreen 0:616601bde9fb 908 * I don't think we really need this in lwIP - we would block tcpip_thread!
AdamGreen 0:616601bde9fb 909 */
AdamGreen 0:616601bde9fb 910 /*sys_msleep((attempts - 3) * 5);*/
AdamGreen 0:616601bde9fb 911 }
AdamGreen 0:616601bde9fb 912 if (addrs != NULL) {
AdamGreen 0:616601bde9fb 913 free_wordlist(addrs);
AdamGreen 0:616601bde9fb 914 }
AdamGreen 0:616601bde9fb 915 } else {
AdamGreen 0:616601bde9fb 916 attempts = 0; /* Reset count */
AdamGreen 0:616601bde9fb 917 if (*msg == (char *) 0) {
AdamGreen 0:616601bde9fb 918 *msg = "Login ok";
AdamGreen 0:616601bde9fb 919 }
AdamGreen 0:616601bde9fb 920 *msglen = strlen(*msg);
AdamGreen 0:616601bde9fb 921 set_allowed_addrs(unit, addrs);
AdamGreen 0:616601bde9fb 922 }
AdamGreen 0:616601bde9fb 923
AdamGreen 0:616601bde9fb 924 BZERO(passwd, sizeof(passwd));
AdamGreen 0:616601bde9fb 925 BZERO(secret, sizeof(secret));
AdamGreen 0:616601bde9fb 926
AdamGreen 0:616601bde9fb 927 return ret;
AdamGreen 0:616601bde9fb 928 #endif
AdamGreen 0:616601bde9fb 929 }
AdamGreen 0:616601bde9fb 930 #endif /* PAP_SUPPORT */
AdamGreen 0:616601bde9fb 931
AdamGreen 0:616601bde9fb 932 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 933 /*
AdamGreen 0:616601bde9fb 934 * This function is needed for PAM.
AdamGreen 0:616601bde9fb 935 */
AdamGreen 0:616601bde9fb 936
AdamGreen 0:616601bde9fb 937 #ifdef USE_PAM
AdamGreen 0:616601bde9fb 938
AdamGreen 0:616601bde9fb 939 /* lwip does not support PAM*/
AdamGreen 0:616601bde9fb 940
AdamGreen 0:616601bde9fb 941 #endif /* USE_PAM */
AdamGreen 0:616601bde9fb 942
AdamGreen 0:616601bde9fb 943 #endif /* UNUSED */
AdamGreen 0:616601bde9fb 944
AdamGreen 0:616601bde9fb 945
AdamGreen 0:616601bde9fb 946 #if 0 /* UNUSED */
AdamGreen 0:616601bde9fb 947 /*
AdamGreen 0:616601bde9fb 948 * plogin - Check the user name and password against the system
AdamGreen 0:616601bde9fb 949 * password database, and login the user if OK.
AdamGreen 0:616601bde9fb 950 *
AdamGreen 0:616601bde9fb 951 * returns:
AdamGreen 0:616601bde9fb 952 * UPAP_AUTHNAK: Login failed.
AdamGreen 0:616601bde9fb 953 * UPAP_AUTHACK: Login succeeded.
AdamGreen 0:616601bde9fb 954 * In either case, msg points to an appropriate message.
AdamGreen 0:616601bde9fb 955 */
AdamGreen 0:616601bde9fb 956 static int
AdamGreen 0:616601bde9fb 957 plogin(char *user, char *passwd, char **msg, int *msglen)
AdamGreen 0:616601bde9fb 958 {
AdamGreen 0:616601bde9fb 959
AdamGreen 0:616601bde9fb 960 LWIP_UNUSED_ARG(user);
AdamGreen 0:616601bde9fb 961 LWIP_UNUSED_ARG(passwd);
AdamGreen 0:616601bde9fb 962 LWIP_UNUSED_ARG(msg);
AdamGreen 0:616601bde9fb 963 LWIP_UNUSED_ARG(msglen);
AdamGreen 0:616601bde9fb 964
AdamGreen 0:616601bde9fb 965
AdamGreen 0:616601bde9fb 966 /* The new lines are here align the file when
AdamGreen 0:616601bde9fb 967 * compared against the pppd 2.3.11 code */
AdamGreen 0:616601bde9fb 968
AdamGreen 0:616601bde9fb 969
AdamGreen 0:616601bde9fb 970
AdamGreen 0:616601bde9fb 971
AdamGreen 0:616601bde9fb 972
AdamGreen 0:616601bde9fb 973
AdamGreen 0:616601bde9fb 974
AdamGreen 0:616601bde9fb 975
AdamGreen 0:616601bde9fb 976
AdamGreen 0:616601bde9fb 977
AdamGreen 0:616601bde9fb 978
AdamGreen 0:616601bde9fb 979
AdamGreen 0:616601bde9fb 980
AdamGreen 0:616601bde9fb 981
AdamGreen 0:616601bde9fb 982
AdamGreen 0:616601bde9fb 983
AdamGreen 0:616601bde9fb 984 /* XXX Fail until we decide that we want to support logins. */
AdamGreen 0:616601bde9fb 985 return (UPAP_AUTHNAK);
AdamGreen 0:616601bde9fb 986 }
AdamGreen 0:616601bde9fb 987 #endif
AdamGreen 0:616601bde9fb 988
AdamGreen 0:616601bde9fb 989
AdamGreen 0:616601bde9fb 990
AdamGreen 0:616601bde9fb 991 /*
AdamGreen 0:616601bde9fb 992 * plogout - Logout the user.
AdamGreen 0:616601bde9fb 993 */
AdamGreen 0:616601bde9fb 994 static void
AdamGreen 0:616601bde9fb 995 plogout(void)
AdamGreen 0:616601bde9fb 996 {
AdamGreen 0:616601bde9fb 997 logged_in = 0;
AdamGreen 0:616601bde9fb 998 }
AdamGreen 0:616601bde9fb 999
AdamGreen 0:616601bde9fb 1000 /*
AdamGreen 0:616601bde9fb 1001 * null_login - Check if a username of "" and a password of "" are
AdamGreen 0:616601bde9fb 1002 * acceptable, and iff so, set the list of acceptable IP addresses
AdamGreen 0:616601bde9fb 1003 * and return 1.
AdamGreen 0:616601bde9fb 1004 */
AdamGreen 0:616601bde9fb 1005 static int
AdamGreen 0:616601bde9fb 1006 null_login(int unit)
AdamGreen 0:616601bde9fb 1007 {
AdamGreen 0:616601bde9fb 1008 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 1009 /* XXX Fail until we decide that we want to support logins. */
AdamGreen 0:616601bde9fb 1010 return 0;
AdamGreen 0:616601bde9fb 1011 }
AdamGreen 0:616601bde9fb 1012
AdamGreen 0:616601bde9fb 1013
AdamGreen 0:616601bde9fb 1014 /*
AdamGreen 0:616601bde9fb 1015 * get_pap_passwd - get a password for authenticating ourselves with
AdamGreen 0:616601bde9fb 1016 * our peer using PAP. Returns 1 on success, 0 if no suitable password
AdamGreen 0:616601bde9fb 1017 * could be found.
AdamGreen 0:616601bde9fb 1018 */
AdamGreen 0:616601bde9fb 1019 static int
AdamGreen 0:616601bde9fb 1020 get_pap_passwd(int unit, char *user, char *passwd)
AdamGreen 0:616601bde9fb 1021 {
AdamGreen 0:616601bde9fb 1022 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 1023 /* normally we would reject PAP if no password is provided,
AdamGreen 0:616601bde9fb 1024 but this causes problems with some providers (like CHT in Taiwan)
AdamGreen 0:616601bde9fb 1025 who incorrectly request PAP and expect a bogus/empty password, so
AdamGreen 0:616601bde9fb 1026 always provide a default user/passwd of "none"/"none"
AdamGreen 0:616601bde9fb 1027
AdamGreen 0:616601bde9fb 1028 @todo: This should be configured by the user, instead of being hardcoded here!
AdamGreen 0:616601bde9fb 1029 */
AdamGreen 0:616601bde9fb 1030 if(user) {
AdamGreen 0:616601bde9fb 1031 strcpy(user, "none");
AdamGreen 0:616601bde9fb 1032 }
AdamGreen 0:616601bde9fb 1033 if(passwd) {
AdamGreen 0:616601bde9fb 1034 strcpy(passwd, "none");
AdamGreen 0:616601bde9fb 1035 }
AdamGreen 0:616601bde9fb 1036 return 1;
AdamGreen 0:616601bde9fb 1037 }
AdamGreen 0:616601bde9fb 1038
AdamGreen 0:616601bde9fb 1039 /*
AdamGreen 0:616601bde9fb 1040 * have_pap_secret - check whether we have a PAP file with any
AdamGreen 0:616601bde9fb 1041 * secrets that we could possibly use for authenticating the peer.
AdamGreen 0:616601bde9fb 1042 */
AdamGreen 0:616601bde9fb 1043 static int
AdamGreen 0:616601bde9fb 1044 have_pap_secret(void)
AdamGreen 0:616601bde9fb 1045 {
AdamGreen 0:616601bde9fb 1046 /* XXX Fail until we set up our passwords. */
AdamGreen 0:616601bde9fb 1047 return 0;
AdamGreen 0:616601bde9fb 1048 }
AdamGreen 0:616601bde9fb 1049
AdamGreen 0:616601bde9fb 1050 /*
AdamGreen 0:616601bde9fb 1051 * have_chap_secret - check whether we have a CHAP file with a
AdamGreen 0:616601bde9fb 1052 * secret that we could possibly use for authenticating `client'
AdamGreen 0:616601bde9fb 1053 * on `server'. Either can be the null string, meaning we don't
AdamGreen 0:616601bde9fb 1054 * know the identity yet.
AdamGreen 0:616601bde9fb 1055 */
AdamGreen 0:616601bde9fb 1056 static int
AdamGreen 0:616601bde9fb 1057 have_chap_secret(char *client, char *server, u32_t remote)
AdamGreen 0:616601bde9fb 1058 {
AdamGreen 0:616601bde9fb 1059 LWIP_UNUSED_ARG(client);
AdamGreen 0:616601bde9fb 1060 LWIP_UNUSED_ARG(server);
AdamGreen 0:616601bde9fb 1061 LWIP_UNUSED_ARG(remote);
AdamGreen 0:616601bde9fb 1062
AdamGreen 0:616601bde9fb 1063 /* XXX Fail until we set up our passwords. */
AdamGreen 0:616601bde9fb 1064 return 0;
AdamGreen 0:616601bde9fb 1065 }
AdamGreen 0:616601bde9fb 1066 #if CHAP_SUPPORT
AdamGreen 0:616601bde9fb 1067
AdamGreen 0:616601bde9fb 1068 /*
AdamGreen 0:616601bde9fb 1069 * get_secret - open the CHAP secret file and return the secret
AdamGreen 0:616601bde9fb 1070 * for authenticating the given client on the given server.
AdamGreen 0:616601bde9fb 1071 * (We could be either client or server).
AdamGreen 0:616601bde9fb 1072 */
AdamGreen 0:616601bde9fb 1073 int
AdamGreen 0:616601bde9fb 1074 get_secret(int unit, char *client, char *server, char *secret, int *secret_len, int save_addrs)
AdamGreen 0:616601bde9fb 1075 {
AdamGreen 0:616601bde9fb 1076 #if 1
AdamGreen 0:616601bde9fb 1077 int len;
AdamGreen 0:616601bde9fb 1078 struct wordlist *addrs;
AdamGreen 0:616601bde9fb 1079
AdamGreen 0:616601bde9fb 1080 LWIP_UNUSED_ARG(unit);
AdamGreen 0:616601bde9fb 1081 LWIP_UNUSED_ARG(server);
AdamGreen 0:616601bde9fb 1082 LWIP_UNUSED_ARG(save_addrs);
AdamGreen 0:616601bde9fb 1083
AdamGreen 0:616601bde9fb 1084 addrs = NULL;
AdamGreen 0:616601bde9fb 1085
AdamGreen 0:616601bde9fb 1086 if(!client || !client[0] || strcmp(client, ppp_settings.user)) {
AdamGreen 0:616601bde9fb 1087 return 0;
AdamGreen 0:616601bde9fb 1088 }
AdamGreen 0:616601bde9fb 1089
AdamGreen 0:616601bde9fb 1090 len = (int)strlen(ppp_settings.passwd);
AdamGreen 0:616601bde9fb 1091 if (len > MAXSECRETLEN) {
AdamGreen 0:616601bde9fb 1092 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
AdamGreen 0:616601bde9fb 1093 len = MAXSECRETLEN;
AdamGreen 0:616601bde9fb 1094 }
AdamGreen 0:616601bde9fb 1095
AdamGreen 0:616601bde9fb 1096 BCOPY(ppp_settings.passwd, secret, len);
AdamGreen 0:616601bde9fb 1097 *secret_len = len;
AdamGreen 0:616601bde9fb 1098
AdamGreen 0:616601bde9fb 1099 return 1;
AdamGreen 0:616601bde9fb 1100 #else
AdamGreen 0:616601bde9fb 1101 int ret = 0, len;
AdamGreen 0:616601bde9fb 1102 struct wordlist *addrs;
AdamGreen 0:616601bde9fb 1103 char secbuf[MAXWORDLEN];
AdamGreen 0:616601bde9fb 1104
AdamGreen 0:616601bde9fb 1105 addrs = NULL;
AdamGreen 0:616601bde9fb 1106 secbuf[0] = 0;
AdamGreen 0:616601bde9fb 1107
AdamGreen 0:616601bde9fb 1108 /* XXX Find secret. */
AdamGreen 0:616601bde9fb 1109 if (ret < 0) {
AdamGreen 0:616601bde9fb 1110 return 0;
AdamGreen 0:616601bde9fb 1111 }
AdamGreen 0:616601bde9fb 1112
AdamGreen 0:616601bde9fb 1113 if (save_addrs) {
AdamGreen 0:616601bde9fb 1114 set_allowed_addrs(unit, addrs);
AdamGreen 0:616601bde9fb 1115 }
AdamGreen 0:616601bde9fb 1116
AdamGreen 0:616601bde9fb 1117 len = strlen(secbuf);
AdamGreen 0:616601bde9fb 1118 if (len > MAXSECRETLEN) {
AdamGreen 0:616601bde9fb 1119 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
AdamGreen 0:616601bde9fb 1120 len = MAXSECRETLEN;
AdamGreen 0:616601bde9fb 1121 }
AdamGreen 0:616601bde9fb 1122
AdamGreen 0:616601bde9fb 1123 BCOPY(secbuf, secret, len);
AdamGreen 0:616601bde9fb 1124 BZERO(secbuf, sizeof(secbuf));
AdamGreen 0:616601bde9fb 1125 *secret_len = len;
AdamGreen 0:616601bde9fb 1126
AdamGreen 0:616601bde9fb 1127 return 1;
AdamGreen 0:616601bde9fb 1128 #endif
AdamGreen 0:616601bde9fb 1129 }
AdamGreen 0:616601bde9fb 1130 #endif /* CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 1131
AdamGreen 0:616601bde9fb 1132
AdamGreen 0:616601bde9fb 1133 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 1134 /*
AdamGreen 0:616601bde9fb 1135 * set_allowed_addrs() - set the list of allowed addresses.
AdamGreen 0:616601bde9fb 1136 */
AdamGreen 0:616601bde9fb 1137 static void
AdamGreen 0:616601bde9fb 1138 set_allowed_addrs(int unit, struct wordlist *addrs)
AdamGreen 0:616601bde9fb 1139 {
AdamGreen 0:616601bde9fb 1140 if (addresses[unit] != NULL) {
AdamGreen 0:616601bde9fb 1141 free_wordlist(addresses[unit]);
AdamGreen 0:616601bde9fb 1142 }
AdamGreen 0:616601bde9fb 1143 addresses[unit] = addrs;
AdamGreen 0:616601bde9fb 1144
AdamGreen 0:616601bde9fb 1145 #if 0
AdamGreen 0:616601bde9fb 1146 /*
AdamGreen 0:616601bde9fb 1147 * If there's only one authorized address we might as well
AdamGreen 0:616601bde9fb 1148 * ask our peer for that one right away
AdamGreen 0:616601bde9fb 1149 */
AdamGreen 0:616601bde9fb 1150 if (addrs != NULL && addrs->next == NULL) {
AdamGreen 0:616601bde9fb 1151 char *p = addrs->word;
AdamGreen 0:616601bde9fb 1152 struct ipcp_options *wo = &ipcp_wantoptions[unit];
AdamGreen 0:616601bde9fb 1153 u32_t a;
AdamGreen 0:616601bde9fb 1154 struct hostent *hp;
AdamGreen 0:616601bde9fb 1155
AdamGreen 0:616601bde9fb 1156 if (wo->hisaddr == 0 && *p != '!' && *p != '-' && strchr(p, '/') == NULL) {
AdamGreen 0:616601bde9fb 1157 hp = gethostbyname(p);
AdamGreen 0:616601bde9fb 1158 if (hp != NULL && hp->h_addrtype == AF_INET) {
AdamGreen 0:616601bde9fb 1159 a = *(u32_t *)hp->h_addr;
AdamGreen 0:616601bde9fb 1160 } else {
AdamGreen 0:616601bde9fb 1161 a = inet_addr(p);
AdamGreen 0:616601bde9fb 1162 }
AdamGreen 0:616601bde9fb 1163 if (a != (u32_t) -1) {
AdamGreen 0:616601bde9fb 1164 wo->hisaddr = a;
AdamGreen 0:616601bde9fb 1165 }
AdamGreen 0:616601bde9fb 1166 }
AdamGreen 0:616601bde9fb 1167 }
AdamGreen 0:616601bde9fb 1168 #endif
AdamGreen 0:616601bde9fb 1169 }
AdamGreen 0:616601bde9fb 1170 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 1171
AdamGreen 0:616601bde9fb 1172 /*
AdamGreen 0:616601bde9fb 1173 * auth_ip_addr - check whether the peer is authorized to use
AdamGreen 0:616601bde9fb 1174 * a given IP address. Returns 1 if authorized, 0 otherwise.
AdamGreen 0:616601bde9fb 1175 */
AdamGreen 0:616601bde9fb 1176 int
AdamGreen 0:616601bde9fb 1177 auth_ip_addr(int unit, u32_t addr)
AdamGreen 0:616601bde9fb 1178 {
AdamGreen 0:616601bde9fb 1179 return ip_addr_check(addr, addresses[unit]);
AdamGreen 0:616601bde9fb 1180 }
AdamGreen 0:616601bde9fb 1181
AdamGreen 0:616601bde9fb 1182 static int /* @todo: integrate this funtion into auth_ip_addr()*/
AdamGreen 0:616601bde9fb 1183 ip_addr_check(u32_t addr, struct wordlist *addrs)
AdamGreen 0:616601bde9fb 1184 {
AdamGreen 0:616601bde9fb 1185 /* don't allow loopback or multicast address */
AdamGreen 0:616601bde9fb 1186 if (bad_ip_adrs(addr)) {
AdamGreen 0:616601bde9fb 1187 return 0;
AdamGreen 0:616601bde9fb 1188 }
AdamGreen 0:616601bde9fb 1189
AdamGreen 0:616601bde9fb 1190 if (addrs == NULL) {
AdamGreen 0:616601bde9fb 1191 return !ppp_settings.auth_required; /* no addresses authorized */
AdamGreen 0:616601bde9fb 1192 }
AdamGreen 0:616601bde9fb 1193
AdamGreen 0:616601bde9fb 1194 /* XXX All other addresses allowed. */
AdamGreen 0:616601bde9fb 1195 return 1;
AdamGreen 0:616601bde9fb 1196 }
AdamGreen 0:616601bde9fb 1197
AdamGreen 0:616601bde9fb 1198 /*
AdamGreen 0:616601bde9fb 1199 * bad_ip_adrs - return 1 if the IP address is one we don't want
AdamGreen 0:616601bde9fb 1200 * to use, such as an address in the loopback net or a multicast address.
AdamGreen 0:616601bde9fb 1201 * addr is in network byte order.
AdamGreen 0:616601bde9fb 1202 */
AdamGreen 0:616601bde9fb 1203 int
AdamGreen 0:616601bde9fb 1204 bad_ip_adrs(u32_t addr)
AdamGreen 0:616601bde9fb 1205 {
AdamGreen 0:616601bde9fb 1206 addr = ntohl(addr);
AdamGreen 0:616601bde9fb 1207 return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
AdamGreen 0:616601bde9fb 1208 || IN_MULTICAST(addr) || IN_BADCLASS(addr);
AdamGreen 0:616601bde9fb 1209 }
AdamGreen 0:616601bde9fb 1210
AdamGreen 0:616601bde9fb 1211 #if 0 /* UNUSED */ /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 1212 /*
AdamGreen 0:616601bde9fb 1213 * some_ip_ok - check a wordlist to see if it authorizes any
AdamGreen 0:616601bde9fb 1214 * IP address(es).
AdamGreen 0:616601bde9fb 1215 */
AdamGreen 0:616601bde9fb 1216 static int
AdamGreen 0:616601bde9fb 1217 some_ip_ok(struct wordlist *addrs)
AdamGreen 0:616601bde9fb 1218 {
AdamGreen 0:616601bde9fb 1219 for (; addrs != 0; addrs = addrs->next) {
AdamGreen 0:616601bde9fb 1220 if (addrs->word[0] == '-')
AdamGreen 0:616601bde9fb 1221 break;
AdamGreen 0:616601bde9fb 1222 if (addrs->word[0] != '!')
AdamGreen 0:616601bde9fb 1223 return 1; /* some IP address is allowed */
AdamGreen 0:616601bde9fb 1224 }
AdamGreen 0:616601bde9fb 1225 return 0;
AdamGreen 0:616601bde9fb 1226 }
AdamGreen 0:616601bde9fb 1227
AdamGreen 0:616601bde9fb 1228 /*
AdamGreen 0:616601bde9fb 1229 * check_access - complain if a secret file has too-liberal permissions.
AdamGreen 0:616601bde9fb 1230 */
AdamGreen 0:616601bde9fb 1231 static void
AdamGreen 0:616601bde9fb 1232 check_access(FILE *f, char *filename)
AdamGreen 0:616601bde9fb 1233 {
AdamGreen 0:616601bde9fb 1234 struct stat sbuf;
AdamGreen 0:616601bde9fb 1235
AdamGreen 0:616601bde9fb 1236 if (fstat(fileno(f), &sbuf) < 0) {
AdamGreen 0:616601bde9fb 1237 warn("cannot stat secret file %s: %m", filename);
AdamGreen 0:616601bde9fb 1238 } else if ((sbuf.st_mode & (S_IRWXG | S_IRWXO)) != 0) {
AdamGreen 0:616601bde9fb 1239 warn("Warning - secret file %s has world and/or group access",
AdamGreen 0:616601bde9fb 1240 filename);
AdamGreen 0:616601bde9fb 1241 }
AdamGreen 0:616601bde9fb 1242 }
AdamGreen 0:616601bde9fb 1243
AdamGreen 0:616601bde9fb 1244
AdamGreen 0:616601bde9fb 1245 /*
AdamGreen 0:616601bde9fb 1246 * scan_authfile - Scan an authorization file for a secret suitable
AdamGreen 0:616601bde9fb 1247 * for authenticating `client' on `server'. The return value is -1
AdamGreen 0:616601bde9fb 1248 * if no secret is found, otherwise >= 0. The return value has
AdamGreen 0:616601bde9fb 1249 * NONWILD_CLIENT set if the secret didn't have "*" for the client, and
AdamGreen 0:616601bde9fb 1250 * NONWILD_SERVER set if the secret didn't have "*" for the server.
AdamGreen 0:616601bde9fb 1251 * Any following words on the line up to a "--" (i.e. address authorization
AdamGreen 0:616601bde9fb 1252 * info) are placed in a wordlist and returned in *addrs. Any
AdamGreen 0:616601bde9fb 1253 * following words (extra options) are placed in a wordlist and
AdamGreen 0:616601bde9fb 1254 * returned in *opts.
AdamGreen 0:616601bde9fb 1255 * We assume secret is NULL or points to MAXWORDLEN bytes of space.
AdamGreen 0:616601bde9fb 1256 */
AdamGreen 0:616601bde9fb 1257 static int
AdamGreen 0:616601bde9fb 1258 scan_authfile(FILE *f, char *client, char *server, char *secret, struct wordlist **addrs, struct wordlist **opts, char *filename)
AdamGreen 0:616601bde9fb 1259 {
AdamGreen 0:616601bde9fb 1260 /* We do not (currently) need this in lwip */
AdamGreen 0:616601bde9fb 1261 return 0; /* dummy */
AdamGreen 0:616601bde9fb 1262 }
AdamGreen 0:616601bde9fb 1263 /*
AdamGreen 0:616601bde9fb 1264 * free_wordlist - release memory allocated for a wordlist.
AdamGreen 0:616601bde9fb 1265 */
AdamGreen 0:616601bde9fb 1266 static void
AdamGreen 0:616601bde9fb 1267 free_wordlist(struct wordlist *wp)
AdamGreen 0:616601bde9fb 1268 {
AdamGreen 0:616601bde9fb 1269 struct wordlist *next;
AdamGreen 0:616601bde9fb 1270
AdamGreen 0:616601bde9fb 1271 while (wp != NULL) {
AdamGreen 0:616601bde9fb 1272 next = wp->next;
AdamGreen 0:616601bde9fb 1273 free(wp);
AdamGreen 0:616601bde9fb 1274 wp = next;
AdamGreen 0:616601bde9fb 1275 }
AdamGreen 0:616601bde9fb 1276 }
AdamGreen 0:616601bde9fb 1277
AdamGreen 0:616601bde9fb 1278 /*
AdamGreen 0:616601bde9fb 1279 * auth_script_done - called when the auth-up or auth-down script
AdamGreen 0:616601bde9fb 1280 * has finished.
AdamGreen 0:616601bde9fb 1281 */
AdamGreen 0:616601bde9fb 1282 static void
AdamGreen 0:616601bde9fb 1283 auth_script_done(void *arg)
AdamGreen 0:616601bde9fb 1284 {
AdamGreen 0:616601bde9fb 1285 auth_script_pid = 0;
AdamGreen 0:616601bde9fb 1286 switch (auth_script_state) {
AdamGreen 0:616601bde9fb 1287 case s_up:
AdamGreen 0:616601bde9fb 1288 if (auth_state == s_down) {
AdamGreen 0:616601bde9fb 1289 auth_script_state = s_down;
AdamGreen 0:616601bde9fb 1290 auth_script(_PATH_AUTHDOWN);
AdamGreen 0:616601bde9fb 1291 }
AdamGreen 0:616601bde9fb 1292 break;
AdamGreen 0:616601bde9fb 1293 case s_down:
AdamGreen 0:616601bde9fb 1294 if (auth_state == s_up) {
AdamGreen 0:616601bde9fb 1295 auth_script_state = s_up;
AdamGreen 0:616601bde9fb 1296 auth_script(_PATH_AUTHUP);
AdamGreen 0:616601bde9fb 1297 }
AdamGreen 0:616601bde9fb 1298 break;
AdamGreen 0:616601bde9fb 1299 }
AdamGreen 0:616601bde9fb 1300 }
AdamGreen 0:616601bde9fb 1301
AdamGreen 0:616601bde9fb 1302 /*
AdamGreen 0:616601bde9fb 1303 * auth_script - execute a script with arguments
AdamGreen 0:616601bde9fb 1304 * interface-name peer-name real-user tty speed
AdamGreen 0:616601bde9fb 1305 */
AdamGreen 0:616601bde9fb 1306 static void
AdamGreen 0:616601bde9fb 1307 auth_script(char *script)
AdamGreen 0:616601bde9fb 1308 {
AdamGreen 0:616601bde9fb 1309 char strspeed[32];
AdamGreen 0:616601bde9fb 1310 struct passwd *pw;
AdamGreen 0:616601bde9fb 1311 char struid[32];
AdamGreen 0:616601bde9fb 1312 char *user_name;
AdamGreen 0:616601bde9fb 1313 char *argv[8];
AdamGreen 0:616601bde9fb 1314
AdamGreen 0:616601bde9fb 1315 if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
AdamGreen 0:616601bde9fb 1316 user_name = pw->pw_name;
AdamGreen 0:616601bde9fb 1317 else {
AdamGreen 0:616601bde9fb 1318 slprintf(struid, sizeof(struid), "%d", getuid());
AdamGreen 0:616601bde9fb 1319 user_name = struid;
AdamGreen 0:616601bde9fb 1320 }
AdamGreen 0:616601bde9fb 1321 slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
AdamGreen 0:616601bde9fb 1322
AdamGreen 0:616601bde9fb 1323 argv[0] = script;
AdamGreen 0:616601bde9fb 1324 argv[1] = ifname;
AdamGreen 0:616601bde9fb 1325 argv[2] = peer_authname;
AdamGreen 0:616601bde9fb 1326 argv[3] = user_name;
AdamGreen 0:616601bde9fb 1327 argv[4] = devnam;
AdamGreen 0:616601bde9fb 1328 argv[5] = strspeed;
AdamGreen 0:616601bde9fb 1329 argv[6] = NULL;
AdamGreen 0:616601bde9fb 1330
AdamGreen 0:616601bde9fb 1331 auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
AdamGreen 0:616601bde9fb 1332 }
AdamGreen 0:616601bde9fb 1333 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
AdamGreen 0:616601bde9fb 1334 #endif /* PPP_SUPPORT */