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lwip/netif/ppp/auth.c@0:d7bd7384a37c, 2016-12-07 (annotated)

Committer:
grzemich
Date:
Wed Dec 07 23:47:50 2016 +0000
Revision:
0:d7bd7384a37c
dgd

Who changed what in which revision?

UserRevisionLine numberNew contents of line
grzemich 0:d7bd7384a37c 1 /*****************************************************************************
grzemich 0:d7bd7384a37c 2 * auth.c - Network Authentication and Phase Control program file.
grzemich 0:d7bd7384a37c 3 *
grzemich 0:d7bd7384a37c 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
grzemich 0:d7bd7384a37c 5 * Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
grzemich 0:d7bd7384a37c 6 *
grzemich 0:d7bd7384a37c 7 * The authors hereby grant permission to use, copy, modify, distribute,
grzemich 0:d7bd7384a37c 8 * and license this software and its documentation for any purpose, provided
grzemich 0:d7bd7384a37c 9 * that existing copyright notices are retained in all copies and that this
grzemich 0:d7bd7384a37c 10 * notice and the following disclaimer are included verbatim in any
grzemich 0:d7bd7384a37c 11 * distributions. No written agreement, license, or royalty fee is required
grzemich 0:d7bd7384a37c 12 * for any of the authorized uses.
grzemich 0:d7bd7384a37c 13 *
grzemich 0:d7bd7384a37c 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
grzemich 0:d7bd7384a37c 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
grzemich 0:d7bd7384a37c 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
grzemich 0:d7bd7384a37c 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
grzemich 0:d7bd7384a37c 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
grzemich 0:d7bd7384a37c 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
grzemich 0:d7bd7384a37c 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
grzemich 0:d7bd7384a37c 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
grzemich 0:d7bd7384a37c 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
grzemich 0:d7bd7384a37c 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
grzemich 0:d7bd7384a37c 24 *
grzemich 0:d7bd7384a37c 25 ******************************************************************************
grzemich 0:d7bd7384a37c 26 * REVISION HISTORY
grzemich 0:d7bd7384a37c 27 *
grzemich 0:d7bd7384a37c 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
grzemich 0:d7bd7384a37c 29 * Ported to lwIP.
grzemich 0:d7bd7384a37c 30 * 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
grzemich 0:d7bd7384a37c 31 * Ported from public pppd code.
grzemich 0:d7bd7384a37c 32 *****************************************************************************/
grzemich 0:d7bd7384a37c 33 /*
grzemich 0:d7bd7384a37c 34 * auth.c - PPP authentication and phase control.
grzemich 0:d7bd7384a37c 35 *
grzemich 0:d7bd7384a37c 36 * Copyright (c) 1993 The Australian National University.
grzemich 0:d7bd7384a37c 37 * All rights reserved.
grzemich 0:d7bd7384a37c 38 *
grzemich 0:d7bd7384a37c 39 * Redistribution and use in source and binary forms are permitted
grzemich 0:d7bd7384a37c 40 * provided that the above copyright notice and this paragraph are
grzemich 0:d7bd7384a37c 41 * duplicated in all such forms and that any documentation,
grzemich 0:d7bd7384a37c 42 * advertising materials, and other materials related to such
grzemich 0:d7bd7384a37c 43 * distribution and use acknowledge that the software was developed
grzemich 0:d7bd7384a37c 44 * by the Australian National University. The name of the University
grzemich 0:d7bd7384a37c 45 * may not be used to endorse or promote products derived from this
grzemich 0:d7bd7384a37c 46 * software without specific prior written permission.
grzemich 0:d7bd7384a37c 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
grzemich 0:d7bd7384a37c 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
grzemich 0:d7bd7384a37c 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
grzemich 0:d7bd7384a37c 50 *
grzemich 0:d7bd7384a37c 51 * Copyright (c) 1989 Carnegie Mellon University.
grzemich 0:d7bd7384a37c 52 * All rights reserved.
grzemich 0:d7bd7384a37c 53 *
grzemich 0:d7bd7384a37c 54 * Redistribution and use in source and binary forms are permitted
grzemich 0:d7bd7384a37c 55 * provided that the above copyright notice and this paragraph are
grzemich 0:d7bd7384a37c 56 * duplicated in all such forms and that any documentation,
grzemich 0:d7bd7384a37c 57 * advertising materials, and other materials related to such
grzemich 0:d7bd7384a37c 58 * distribution and use acknowledge that the software was developed
grzemich 0:d7bd7384a37c 59 * by Carnegie Mellon University. The name of the
grzemich 0:d7bd7384a37c 60 * University may not be used to endorse or promote products derived
grzemich 0:d7bd7384a37c 61 * from this software without specific prior written permission.
grzemich 0:d7bd7384a37c 62 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
grzemich 0:d7bd7384a37c 63 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
grzemich 0:d7bd7384a37c 64 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
grzemich 0:d7bd7384a37c 65 */
grzemich 0:d7bd7384a37c 66
grzemich 0:d7bd7384a37c 67 #include "lwip/opt.h"
grzemich 0:d7bd7384a37c 68
grzemich 0:d7bd7384a37c 69 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
grzemich 0:d7bd7384a37c 70
grzemich 0:d7bd7384a37c 71 #include "ppp.h"
grzemich 0:d7bd7384a37c 72 #include "pppdebug.h"
grzemich 0:d7bd7384a37c 73
grzemich 0:d7bd7384a37c 74 #include "fsm.h"
grzemich 0:d7bd7384a37c 75 #include "lcp.h"
grzemich 0:d7bd7384a37c 76 #include "pap.h"
grzemich 0:d7bd7384a37c 77 #include "chap.h"
grzemich 0:d7bd7384a37c 78 #include "auth.h"
grzemich 0:d7bd7384a37c 79 #include "ipcp.h"
grzemich 0:d7bd7384a37c 80
grzemich 0:d7bd7384a37c 81 #if CBCP_SUPPORT
grzemich 0:d7bd7384a37c 82 #include "cbcp.h"
grzemich 0:d7bd7384a37c 83 #endif /* CBCP_SUPPORT */
grzemich 0:d7bd7384a37c 84
grzemich 0:d7bd7384a37c 85 #include "lwip/inet.h"
grzemich 0:d7bd7384a37c 86
grzemich 0:d7bd7384a37c 87 #include <string.h>
grzemich 0:d7bd7384a37c 88
grzemich 0:d7bd7384a37c 89 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 90 /* Bits in scan_authfile return value */
grzemich 0:d7bd7384a37c 91 #define NONWILD_SERVER 1
grzemich 0:d7bd7384a37c 92 #define NONWILD_CLIENT 2
grzemich 0:d7bd7384a37c 93
grzemich 0:d7bd7384a37c 94 #define ISWILD(word) (word[0] == '*' && word[1] == 0)
grzemich 0:d7bd7384a37c 95 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 96
grzemich 0:d7bd7384a37c 97 #if PAP_SUPPORT || CHAP_SUPPORT
grzemich 0:d7bd7384a37c 98 /* The name by which the peer authenticated itself to us. */
grzemich 0:d7bd7384a37c 99 static char peer_authname[MAXNAMELEN];
grzemich 0:d7bd7384a37c 100 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 101
grzemich 0:d7bd7384a37c 102 /* Records which authentication operations haven't completed yet. */
grzemich 0:d7bd7384a37c 103 static int auth_pending[NUM_PPP];
grzemich 0:d7bd7384a37c 104
grzemich 0:d7bd7384a37c 105 /* Set if we have successfully called plogin() */
grzemich 0:d7bd7384a37c 106 static int logged_in;
grzemich 0:d7bd7384a37c 107
grzemich 0:d7bd7384a37c 108 /* Set if we have run the /etc/ppp/auth-up script. */
grzemich 0:d7bd7384a37c 109 static int did_authup; /* @todo, we don't need this in lwip*/
grzemich 0:d7bd7384a37c 110
grzemich 0:d7bd7384a37c 111 /* List of addresses which the peer may use. */
grzemich 0:d7bd7384a37c 112 static struct wordlist *addresses[NUM_PPP];
grzemich 0:d7bd7384a37c 113
grzemich 0:d7bd7384a37c 114 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 115 /* Wordlist giving addresses which the peer may use
grzemich 0:d7bd7384a37c 116 without authenticating itself. */
grzemich 0:d7bd7384a37c 117 static struct wordlist *noauth_addrs;
grzemich 0:d7bd7384a37c 118
grzemich 0:d7bd7384a37c 119 /* Extra options to apply, from the secrets file entry for the peer. */
grzemich 0:d7bd7384a37c 120 static struct wordlist *extra_options;
grzemich 0:d7bd7384a37c 121 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 122
grzemich 0:d7bd7384a37c 123 /* Number of network protocols which we have opened. */
grzemich 0:d7bd7384a37c 124 static int num_np_open;
grzemich 0:d7bd7384a37c 125
grzemich 0:d7bd7384a37c 126 /* Number of network protocols which have come up. */
grzemich 0:d7bd7384a37c 127 static int num_np_up;
grzemich 0:d7bd7384a37c 128
grzemich 0:d7bd7384a37c 129 #if PAP_SUPPORT || CHAP_SUPPORT
grzemich 0:d7bd7384a37c 130 /* Set if we got the contents of passwd[] from the pap-secrets file. */
grzemich 0:d7bd7384a37c 131 static int passwd_from_file;
grzemich 0:d7bd7384a37c 132 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 133
grzemich 0:d7bd7384a37c 134 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 135 /* Set if we require authentication only because we have a default route. */
grzemich 0:d7bd7384a37c 136 static bool default_auth;
grzemich 0:d7bd7384a37c 137
grzemich 0:d7bd7384a37c 138 /* Hook to enable a plugin to control the idle time limit */
grzemich 0:d7bd7384a37c 139 int (*idle_time_hook) __P((struct ppp_idle *)) = NULL;
grzemich 0:d7bd7384a37c 140
grzemich 0:d7bd7384a37c 141 /* Hook for a plugin to say whether we can possibly authenticate any peer */
grzemich 0:d7bd7384a37c 142 int (*pap_check_hook) __P((void)) = NULL;
grzemich 0:d7bd7384a37c 143
grzemich 0:d7bd7384a37c 144 /* Hook for a plugin to check the PAP user and password */
grzemich 0:d7bd7384a37c 145 int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
grzemich 0:d7bd7384a37c 146 struct wordlist **paddrs,
grzemich 0:d7bd7384a37c 147 struct wordlist **popts)) = NULL;
grzemich 0:d7bd7384a37c 148
grzemich 0:d7bd7384a37c 149 /* Hook for a plugin to know about the PAP user logout */
grzemich 0:d7bd7384a37c 150 void (*pap_logout_hook) __P((void)) = NULL;
grzemich 0:d7bd7384a37c 151
grzemich 0:d7bd7384a37c 152 /* Hook for a plugin to get the PAP password for authenticating us */
grzemich 0:d7bd7384a37c 153 int (*pap_passwd_hook) __P((char *user, char *passwd)) = NULL;
grzemich 0:d7bd7384a37c 154
grzemich 0:d7bd7384a37c 155 /*
grzemich 0:d7bd7384a37c 156 * This is used to ensure that we don't start an auth-up/down
grzemich 0:d7bd7384a37c 157 * script while one is already running.
grzemich 0:d7bd7384a37c 158 */
grzemich 0:d7bd7384a37c 159 enum script_state {
grzemich 0:d7bd7384a37c 160 s_down,
grzemich 0:d7bd7384a37c 161 s_up
grzemich 0:d7bd7384a37c 162 };
grzemich 0:d7bd7384a37c 163
grzemich 0:d7bd7384a37c 164 static enum script_state auth_state = s_down;
grzemich 0:d7bd7384a37c 165 static enum script_state auth_script_state = s_down;
grzemich 0:d7bd7384a37c 166 static pid_t auth_script_pid = 0;
grzemich 0:d7bd7384a37c 167
grzemich 0:d7bd7384a37c 168 /*
grzemich 0:d7bd7384a37c 169 * Option variables.
grzemich 0:d7bd7384a37c 170 * lwip: some of these are present in the ppp_settings structure
grzemich 0:d7bd7384a37c 171 */
grzemich 0:d7bd7384a37c 172 bool uselogin = 0; /* Use /etc/passwd for checking PAP */
grzemich 0:d7bd7384a37c 173 bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
grzemich 0:d7bd7384a37c 174 bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
grzemich 0:d7bd7384a37c 175 bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
grzemich 0:d7bd7384a37c 176 bool usehostname = 0; /* Use hostname for our_name */
grzemich 0:d7bd7384a37c 177 bool auth_required = 0; /* Always require authentication from peer */
grzemich 0:d7bd7384a37c 178 bool allow_any_ip = 0; /* Allow peer to use any IP address */
grzemich 0:d7bd7384a37c 179 bool explicit_remote = 0; /* User specified explicit remote name */
grzemich 0:d7bd7384a37c 180 char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
grzemich 0:d7bd7384a37c 181
grzemich 0:d7bd7384a37c 182 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 183
grzemich 0:d7bd7384a37c 184 /* Bits in auth_pending[] */
grzemich 0:d7bd7384a37c 185 #define PAP_WITHPEER 1
grzemich 0:d7bd7384a37c 186 #define PAP_PEER 2
grzemich 0:d7bd7384a37c 187 #define CHAP_WITHPEER 4
grzemich 0:d7bd7384a37c 188 #define CHAP_PEER 8
grzemich 0:d7bd7384a37c 189
grzemich 0:d7bd7384a37c 190 /* @todo, move this somewhere */
grzemich 0:d7bd7384a37c 191 /* Used for storing a sequence of words. Usually malloced. */
grzemich 0:d7bd7384a37c 192 struct wordlist {
grzemich 0:d7bd7384a37c 193 struct wordlist *next;
grzemich 0:d7bd7384a37c 194 char word[1];
grzemich 0:d7bd7384a37c 195 };
grzemich 0:d7bd7384a37c 196
grzemich 0:d7bd7384a37c 197
grzemich 0:d7bd7384a37c 198 extern char *crypt (const char *, const char *);
grzemich 0:d7bd7384a37c 199
grzemich 0:d7bd7384a37c 200 /* Prototypes for procedures local to this file. */
grzemich 0:d7bd7384a37c 201
grzemich 0:d7bd7384a37c 202 static void network_phase (int);
grzemich 0:d7bd7384a37c 203 static void check_idle (void *);
grzemich 0:d7bd7384a37c 204 static void connect_time_expired (void *);
grzemich 0:d7bd7384a37c 205 #if 0
grzemich 0:d7bd7384a37c 206 static int plogin (char *, char *, char **, int *);
grzemich 0:d7bd7384a37c 207 #endif
grzemich 0:d7bd7384a37c 208 static void plogout (void);
grzemich 0:d7bd7384a37c 209 static int null_login (int);
grzemich 0:d7bd7384a37c 210 static int get_pap_passwd (int, char *, char *);
grzemich 0:d7bd7384a37c 211 static int have_pap_secret (void);
grzemich 0:d7bd7384a37c 212 static int have_chap_secret (char *, char *, u32_t);
grzemich 0:d7bd7384a37c 213 static int ip_addr_check (u32_t, struct wordlist *);
grzemich 0:d7bd7384a37c 214
grzemich 0:d7bd7384a37c 215 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 216 static int scan_authfile (FILE *, char *, char *, char *,
grzemich 0:d7bd7384a37c 217 struct wordlist **, struct wordlist **,
grzemich 0:d7bd7384a37c 218 char *);
grzemich 0:d7bd7384a37c 219 static void free_wordlist (struct wordlist *);
grzemich 0:d7bd7384a37c 220 static void auth_script (char *);
grzemich 0:d7bd7384a37c 221 static void auth_script_done (void *);
grzemich 0:d7bd7384a37c 222 static void set_allowed_addrs (int unit, struct wordlist *addrs);
grzemich 0:d7bd7384a37c 223 static int some_ip_ok (struct wordlist *);
grzemich 0:d7bd7384a37c 224 static int setupapfile (char **);
grzemich 0:d7bd7384a37c 225 static int privgroup (char **);
grzemich 0:d7bd7384a37c 226 static int set_noauth_addr (char **);
grzemich 0:d7bd7384a37c 227 static void check_access (FILE *, char *);
grzemich 0:d7bd7384a37c 228 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 229
grzemich 0:d7bd7384a37c 230 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 231 /*
grzemich 0:d7bd7384a37c 232 * Authentication-related options.
grzemich 0:d7bd7384a37c 233 */
grzemich 0:d7bd7384a37c 234 option_t auth_options[] = {
grzemich 0:d7bd7384a37c 235 { "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
grzemich 0:d7bd7384a37c 236 "Require PAP authentication from peer", 1, &auth_required },
grzemich 0:d7bd7384a37c 237 { "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
grzemich 0:d7bd7384a37c 238 "Require PAP authentication from peer", 1, &auth_required },
grzemich 0:d7bd7384a37c 239 { "refuse-pap", o_bool, &refuse_pap,
grzemich 0:d7bd7384a37c 240 "Don't agree to auth to peer with PAP", 1 },
grzemich 0:d7bd7384a37c 241 { "-pap", o_bool, &refuse_pap,
grzemich 0:d7bd7384a37c 242 "Don't allow PAP authentication with peer", 1 },
grzemich 0:d7bd7384a37c 243 { "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
grzemich 0:d7bd7384a37c 244 "Require CHAP authentication from peer", 1, &auth_required },
grzemich 0:d7bd7384a37c 245 { "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
grzemich 0:d7bd7384a37c 246 "Require CHAP authentication from peer", 1, &auth_required },
grzemich 0:d7bd7384a37c 247 { "refuse-chap", o_bool, &refuse_chap,
grzemich 0:d7bd7384a37c 248 "Don't agree to auth to peer with CHAP", 1 },
grzemich 0:d7bd7384a37c 249 { "-chap", o_bool, &refuse_chap,
grzemich 0:d7bd7384a37c 250 "Don't allow CHAP authentication with peer", 1 },
grzemich 0:d7bd7384a37c 251 { "name", o_string, our_name,
grzemich 0:d7bd7384a37c 252 "Set local name for authentication",
grzemich 0:d7bd7384a37c 253 OPT_PRIV|OPT_STATIC, NULL, MAXNAMELEN },
grzemich 0:d7bd7384a37c 254 { "user", o_string, user,
grzemich 0:d7bd7384a37c 255 "Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
grzemich 0:d7bd7384a37c 256 { "usehostname", o_bool, &usehostname,
grzemich 0:d7bd7384a37c 257 "Must use hostname for authentication", 1 },
grzemich 0:d7bd7384a37c 258 { "remotename", o_string, remote_name,
grzemich 0:d7bd7384a37c 259 "Set remote name for authentication", OPT_STATIC,
grzemich 0:d7bd7384a37c 260 &explicit_remote, MAXNAMELEN },
grzemich 0:d7bd7384a37c 261 { "auth", o_bool, &auth_required,
grzemich 0:d7bd7384a37c 262 "Require authentication from peer", 1 },
grzemich 0:d7bd7384a37c 263 { "noauth", o_bool, &auth_required,
grzemich 0:d7bd7384a37c 264 "Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
grzemich 0:d7bd7384a37c 265 { "login", o_bool, &uselogin,
grzemich 0:d7bd7384a37c 266 "Use system password database for PAP", 1 },
grzemich 0:d7bd7384a37c 267 { "papcrypt", o_bool, &cryptpap,
grzemich 0:d7bd7384a37c 268 "PAP passwords are encrypted", 1 },
grzemich 0:d7bd7384a37c 269 { "+ua", o_special, (void *)setupapfile,
grzemich 0:d7bd7384a37c 270 "Get PAP user and password from file" },
grzemich 0:d7bd7384a37c 271 { "password", o_string, passwd,
grzemich 0:d7bd7384a37c 272 "Password for authenticating us to the peer", OPT_STATIC,
grzemich 0:d7bd7384a37c 273 NULL, MAXSECRETLEN },
grzemich 0:d7bd7384a37c 274 { "privgroup", o_special, (void *)privgroup,
grzemich 0:d7bd7384a37c 275 "Allow group members to use privileged options", OPT_PRIV },
grzemich 0:d7bd7384a37c 276 { "allow-ip", o_special, (void *)set_noauth_addr,
grzemich 0:d7bd7384a37c 277 "Set IP address(es) which can be used without authentication",
grzemich 0:d7bd7384a37c 278 OPT_PRIV },
grzemich 0:d7bd7384a37c 279 { NULL }
grzemich 0:d7bd7384a37c 280 };
grzemich 0:d7bd7384a37c 281 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 282 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 283 /*
grzemich 0:d7bd7384a37c 284 * setupapfile - specifies UPAP info for authenticating with peer.
grzemich 0:d7bd7384a37c 285 */
grzemich 0:d7bd7384a37c 286 static int
grzemich 0:d7bd7384a37c 287 setupapfile(char **argv)
grzemich 0:d7bd7384a37c 288 {
grzemich 0:d7bd7384a37c 289 FILE * ufile;
grzemich 0:d7bd7384a37c 290 int l;
grzemich 0:d7bd7384a37c 291
grzemich 0:d7bd7384a37c 292 lcp_allowoptions[0].neg_upap = 1;
grzemich 0:d7bd7384a37c 293
grzemich 0:d7bd7384a37c 294 /* open user info file */
grzemich 0:d7bd7384a37c 295 seteuid(getuid());
grzemich 0:d7bd7384a37c 296 ufile = fopen(*argv, "r");
grzemich 0:d7bd7384a37c 297 seteuid(0);
grzemich 0:d7bd7384a37c 298 if (ufile == NULL) {
grzemich 0:d7bd7384a37c 299 option_error("unable to open user login data file %s", *argv);
grzemich 0:d7bd7384a37c 300 return 0;
grzemich 0:d7bd7384a37c 301 }
grzemich 0:d7bd7384a37c 302 check_access(ufile, *argv);
grzemich 0:d7bd7384a37c 303
grzemich 0:d7bd7384a37c 304 /* get username */
grzemich 0:d7bd7384a37c 305 if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
grzemich 0:d7bd7384a37c 306 || fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
grzemich 0:d7bd7384a37c 307 option_error("unable to read user login data file %s", *argv);
grzemich 0:d7bd7384a37c 308 return 0;
grzemich 0:d7bd7384a37c 309 }
grzemich 0:d7bd7384a37c 310 fclose(ufile);
grzemich 0:d7bd7384a37c 311
grzemich 0:d7bd7384a37c 312 /* get rid of newlines */
grzemich 0:d7bd7384a37c 313 l = strlen(user);
grzemich 0:d7bd7384a37c 314 if (l > 0 && user[l-1] == '\n')
grzemich 0:d7bd7384a37c 315 user[l-1] = 0;
grzemich 0:d7bd7384a37c 316 l = strlen(passwd);
grzemich 0:d7bd7384a37c 317 if (l > 0 && passwd[l-1] == '\n')
grzemich 0:d7bd7384a37c 318 passwd[l-1] = 0;
grzemich 0:d7bd7384a37c 319
grzemich 0:d7bd7384a37c 320 return (1);
grzemich 0:d7bd7384a37c 321 }
grzemich 0:d7bd7384a37c 322 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 323
grzemich 0:d7bd7384a37c 324 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 325 /*
grzemich 0:d7bd7384a37c 326 * privgroup - allow members of the group to have privileged access.
grzemich 0:d7bd7384a37c 327 */
grzemich 0:d7bd7384a37c 328 static int
grzemich 0:d7bd7384a37c 329 privgroup(char **argv)
grzemich 0:d7bd7384a37c 330 {
grzemich 0:d7bd7384a37c 331 struct group *g;
grzemich 0:d7bd7384a37c 332 int i;
grzemich 0:d7bd7384a37c 333
grzemich 0:d7bd7384a37c 334 g = getgrnam(*argv);
grzemich 0:d7bd7384a37c 335 if (g == 0) {
grzemich 0:d7bd7384a37c 336 option_error("group %s is unknown", *argv);
grzemich 0:d7bd7384a37c 337 return 0;
grzemich 0:d7bd7384a37c 338 }
grzemich 0:d7bd7384a37c 339 for (i = 0; i < ngroups; ++i) {
grzemich 0:d7bd7384a37c 340 if (groups[i] == g->gr_gid) {
grzemich 0:d7bd7384a37c 341 privileged = 1;
grzemich 0:d7bd7384a37c 342 break;
grzemich 0:d7bd7384a37c 343 }
grzemich 0:d7bd7384a37c 344 }
grzemich 0:d7bd7384a37c 345 return 1;
grzemich 0:d7bd7384a37c 346 }
grzemich 0:d7bd7384a37c 347 #endif
grzemich 0:d7bd7384a37c 348
grzemich 0:d7bd7384a37c 349 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 350 /*
grzemich 0:d7bd7384a37c 351 * set_noauth_addr - set address(es) that can be used without authentication.
grzemich 0:d7bd7384a37c 352 * Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
grzemich 0:d7bd7384a37c 353 */
grzemich 0:d7bd7384a37c 354 static int
grzemich 0:d7bd7384a37c 355 set_noauth_addr(char **argv)
grzemich 0:d7bd7384a37c 356 {
grzemich 0:d7bd7384a37c 357 char *addr = *argv;
grzemich 0:d7bd7384a37c 358 int l = strlen(addr);
grzemich 0:d7bd7384a37c 359 struct wordlist *wp;
grzemich 0:d7bd7384a37c 360
grzemich 0:d7bd7384a37c 361 wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
grzemich 0:d7bd7384a37c 362 if (wp == NULL)
grzemich 0:d7bd7384a37c 363 novm("allow-ip argument");
grzemich 0:d7bd7384a37c 364 wp->word = (char *) (wp + 1);
grzemich 0:d7bd7384a37c 365 wp->next = noauth_addrs;
grzemich 0:d7bd7384a37c 366 BCOPY(addr, wp->word, l);
grzemich 0:d7bd7384a37c 367 noauth_addrs = wp;
grzemich 0:d7bd7384a37c 368 return 1;
grzemich 0:d7bd7384a37c 369 }
grzemich 0:d7bd7384a37c 370 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 371
grzemich 0:d7bd7384a37c 372 /*
grzemich 0:d7bd7384a37c 373 * An Open on LCP has requested a change from Dead to Establish phase.
grzemich 0:d7bd7384a37c 374 * Do what's necessary to bring the physical layer up.
grzemich 0:d7bd7384a37c 375 */
grzemich 0:d7bd7384a37c 376 void
grzemich 0:d7bd7384a37c 377 link_required(int unit)
grzemich 0:d7bd7384a37c 378 {
grzemich 0:d7bd7384a37c 379 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 380
grzemich 0:d7bd7384a37c 381 AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
grzemich 0:d7bd7384a37c 382 }
grzemich 0:d7bd7384a37c 383
grzemich 0:d7bd7384a37c 384 /*
grzemich 0:d7bd7384a37c 385 * LCP has terminated the link; go to the Dead phase and take the
grzemich 0:d7bd7384a37c 386 * physical layer down.
grzemich 0:d7bd7384a37c 387 */
grzemich 0:d7bd7384a37c 388 void
grzemich 0:d7bd7384a37c 389 link_terminated(int unit)
grzemich 0:d7bd7384a37c 390 {
grzemich 0:d7bd7384a37c 391 AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
grzemich 0:d7bd7384a37c 392 if (lcp_phase[unit] == PHASE_DEAD) {
grzemich 0:d7bd7384a37c 393 return;
grzemich 0:d7bd7384a37c 394 }
grzemich 0:d7bd7384a37c 395 if (logged_in) {
grzemich 0:d7bd7384a37c 396 plogout();
grzemich 0:d7bd7384a37c 397 }
grzemich 0:d7bd7384a37c 398 lcp_phase[unit] = PHASE_DEAD;
grzemich 0:d7bd7384a37c 399 AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
grzemich 0:d7bd7384a37c 400 pppLinkTerminated(unit);
grzemich 0:d7bd7384a37c 401 }
grzemich 0:d7bd7384a37c 402
grzemich 0:d7bd7384a37c 403 /*
grzemich 0:d7bd7384a37c 404 * LCP has gone down; it will either die or try to re-establish.
grzemich 0:d7bd7384a37c 405 */
grzemich 0:d7bd7384a37c 406 void
grzemich 0:d7bd7384a37c 407 link_down(int unit)
grzemich 0:d7bd7384a37c 408 {
grzemich 0:d7bd7384a37c 409 int i;
grzemich 0:d7bd7384a37c 410 struct protent *protp;
grzemich 0:d7bd7384a37c 411
grzemich 0:d7bd7384a37c 412 AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
grzemich 0:d7bd7384a37c 413
grzemich 0:d7bd7384a37c 414 if (did_authup) {
grzemich 0:d7bd7384a37c 415 /* XXX Do link down processing. */
grzemich 0:d7bd7384a37c 416 did_authup = 0;
grzemich 0:d7bd7384a37c 417 }
grzemich 0:d7bd7384a37c 418 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
grzemich 0:d7bd7384a37c 419 if (!protp->enabled_flag) {
grzemich 0:d7bd7384a37c 420 continue;
grzemich 0:d7bd7384a37c 421 }
grzemich 0:d7bd7384a37c 422 if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
grzemich 0:d7bd7384a37c 423 (*protp->lowerdown)(unit);
grzemich 0:d7bd7384a37c 424 }
grzemich 0:d7bd7384a37c 425 if (protp->protocol < 0xC000 && protp->close != NULL) {
grzemich 0:d7bd7384a37c 426 (*protp->close)(unit, "LCP down");
grzemich 0:d7bd7384a37c 427 }
grzemich 0:d7bd7384a37c 428 }
grzemich 0:d7bd7384a37c 429 num_np_open = 0; /* number of network protocols we have opened */
grzemich 0:d7bd7384a37c 430 num_np_up = 0; /* Number of network protocols which have come up */
grzemich 0:d7bd7384a37c 431
grzemich 0:d7bd7384a37c 432 if (lcp_phase[unit] != PHASE_DEAD) {
grzemich 0:d7bd7384a37c 433 lcp_phase[unit] = PHASE_TERMINATE;
grzemich 0:d7bd7384a37c 434 }
grzemich 0:d7bd7384a37c 435 pppLinkDown(unit);
grzemich 0:d7bd7384a37c 436 }
grzemich 0:d7bd7384a37c 437
grzemich 0:d7bd7384a37c 438 /*
grzemich 0:d7bd7384a37c 439 * The link is established.
grzemich 0:d7bd7384a37c 440 * Proceed to the Dead, Authenticate or Network phase as appropriate.
grzemich 0:d7bd7384a37c 441 */
grzemich 0:d7bd7384a37c 442 void
grzemich 0:d7bd7384a37c 443 link_established(int unit)
grzemich 0:d7bd7384a37c 444 {
grzemich 0:d7bd7384a37c 445 int auth;
grzemich 0:d7bd7384a37c 446 int i;
grzemich 0:d7bd7384a37c 447 struct protent *protp;
grzemich 0:d7bd7384a37c 448 lcp_options *wo = &lcp_wantoptions[unit];
grzemich 0:d7bd7384a37c 449 lcp_options *go = &lcp_gotoptions[unit];
grzemich 0:d7bd7384a37c 450 #if PAP_SUPPORT || CHAP_SUPPORT
grzemich 0:d7bd7384a37c 451 lcp_options *ho = &lcp_hisoptions[unit];
grzemich 0:d7bd7384a37c 452 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 453
grzemich 0:d7bd7384a37c 454 AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
grzemich 0:d7bd7384a37c 455 /*
grzemich 0:d7bd7384a37c 456 * Tell higher-level protocols that LCP is up.
grzemich 0:d7bd7384a37c 457 */
grzemich 0:d7bd7384a37c 458 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
grzemich 0:d7bd7384a37c 459 if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
grzemich 0:d7bd7384a37c 460 (*protp->lowerup)(unit);
grzemich 0:d7bd7384a37c 461 }
grzemich 0:d7bd7384a37c 462 }
grzemich 0:d7bd7384a37c 463 if (ppp_settings.auth_required && !(go->neg_chap || go->neg_upap)) {
grzemich 0:d7bd7384a37c 464 /*
grzemich 0:d7bd7384a37c 465 * We wanted the peer to authenticate itself, and it refused:
grzemich 0:d7bd7384a37c 466 * treat it as though it authenticated with PAP using a username
grzemich 0:d7bd7384a37c 467 * of "" and a password of "". If that's not OK, boot it out.
grzemich 0:d7bd7384a37c 468 */
grzemich 0:d7bd7384a37c 469 if (!wo->neg_upap || !null_login(unit)) {
grzemich 0:d7bd7384a37c 470 AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
grzemich 0:d7bd7384a37c 471 lcp_close(unit, "peer refused to authenticate");
grzemich 0:d7bd7384a37c 472 return;
grzemich 0:d7bd7384a37c 473 }
grzemich 0:d7bd7384a37c 474 }
grzemich 0:d7bd7384a37c 475
grzemich 0:d7bd7384a37c 476 lcp_phase[unit] = PHASE_AUTHENTICATE;
grzemich 0:d7bd7384a37c 477 auth = 0;
grzemich 0:d7bd7384a37c 478 #if CHAP_SUPPORT
grzemich 0:d7bd7384a37c 479 if (go->neg_chap) {
grzemich 0:d7bd7384a37c 480 ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
grzemich 0:d7bd7384a37c 481 auth |= CHAP_PEER;
grzemich 0:d7bd7384a37c 482 }
grzemich 0:d7bd7384a37c 483 #endif /* CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 484 #if PAP_SUPPORT && CHAP_SUPPORT
grzemich 0:d7bd7384a37c 485 else
grzemich 0:d7bd7384a37c 486 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 487 #if PAP_SUPPORT
grzemich 0:d7bd7384a37c 488 if (go->neg_upap) {
grzemich 0:d7bd7384a37c 489 upap_authpeer(unit);
grzemich 0:d7bd7384a37c 490 auth |= PAP_PEER;
grzemich 0:d7bd7384a37c 491 }
grzemich 0:d7bd7384a37c 492 #endif /* PAP_SUPPORT */
grzemich 0:d7bd7384a37c 493 #if CHAP_SUPPORT
grzemich 0:d7bd7384a37c 494 if (ho->neg_chap) {
grzemich 0:d7bd7384a37c 495 ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
grzemich 0:d7bd7384a37c 496 auth |= CHAP_WITHPEER;
grzemich 0:d7bd7384a37c 497 }
grzemich 0:d7bd7384a37c 498 #endif /* CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 499 #if PAP_SUPPORT && CHAP_SUPPORT
grzemich 0:d7bd7384a37c 500 else
grzemich 0:d7bd7384a37c 501 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 502 #if PAP_SUPPORT
grzemich 0:d7bd7384a37c 503 if (ho->neg_upap) {
grzemich 0:d7bd7384a37c 504 if (ppp_settings.passwd[0] == 0) {
grzemich 0:d7bd7384a37c 505 passwd_from_file = 1;
grzemich 0:d7bd7384a37c 506 if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
grzemich 0:d7bd7384a37c 507 AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
grzemich 0:d7bd7384a37c 508 }
grzemich 0:d7bd7384a37c 509 }
grzemich 0:d7bd7384a37c 510 upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
grzemich 0:d7bd7384a37c 511 auth |= PAP_WITHPEER;
grzemich 0:d7bd7384a37c 512 }
grzemich 0:d7bd7384a37c 513 #endif /* PAP_SUPPORT */
grzemich 0:d7bd7384a37c 514 auth_pending[unit] = auth;
grzemich 0:d7bd7384a37c 515
grzemich 0:d7bd7384a37c 516 if (!auth) {
grzemich 0:d7bd7384a37c 517 network_phase(unit);
grzemich 0:d7bd7384a37c 518 }
grzemich 0:d7bd7384a37c 519 }
grzemich 0:d7bd7384a37c 520
grzemich 0:d7bd7384a37c 521 /*
grzemich 0:d7bd7384a37c 522 * Proceed to the network phase.
grzemich 0:d7bd7384a37c 523 */
grzemich 0:d7bd7384a37c 524 static void
grzemich 0:d7bd7384a37c 525 network_phase(int unit)
grzemich 0:d7bd7384a37c 526 {
grzemich 0:d7bd7384a37c 527 int i;
grzemich 0:d7bd7384a37c 528 struct protent *protp;
grzemich 0:d7bd7384a37c 529 lcp_options *go = &lcp_gotoptions[unit];
grzemich 0:d7bd7384a37c 530
grzemich 0:d7bd7384a37c 531 /*
grzemich 0:d7bd7384a37c 532 * If the peer had to authenticate, run the auth-up script now.
grzemich 0:d7bd7384a37c 533 */
grzemich 0:d7bd7384a37c 534 if ((go->neg_chap || go->neg_upap) && !did_authup) {
grzemich 0:d7bd7384a37c 535 /* XXX Do setup for peer authentication. */
grzemich 0:d7bd7384a37c 536 did_authup = 1;
grzemich 0:d7bd7384a37c 537 }
grzemich 0:d7bd7384a37c 538
grzemich 0:d7bd7384a37c 539 #if CBCP_SUPPORT
grzemich 0:d7bd7384a37c 540 /*
grzemich 0:d7bd7384a37c 541 * If we negotiated callback, do it now.
grzemich 0:d7bd7384a37c 542 */
grzemich 0:d7bd7384a37c 543 if (go->neg_cbcp) {
grzemich 0:d7bd7384a37c 544 lcp_phase[unit] = PHASE_CALLBACK;
grzemich 0:d7bd7384a37c 545 (*cbcp_protent.open)(unit);
grzemich 0:d7bd7384a37c 546 return;
grzemich 0:d7bd7384a37c 547 }
grzemich 0:d7bd7384a37c 548 #endif /* CBCP_SUPPORT */
grzemich 0:d7bd7384a37c 549
grzemich 0:d7bd7384a37c 550 lcp_phase[unit] = PHASE_NETWORK;
grzemich 0:d7bd7384a37c 551 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
grzemich 0:d7bd7384a37c 552 if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
grzemich 0:d7bd7384a37c 553 (*protp->open)(unit);
grzemich 0:d7bd7384a37c 554 if (protp->protocol != PPP_CCP) {
grzemich 0:d7bd7384a37c 555 ++num_np_open;
grzemich 0:d7bd7384a37c 556 }
grzemich 0:d7bd7384a37c 557 }
grzemich 0:d7bd7384a37c 558 }
grzemich 0:d7bd7384a37c 559
grzemich 0:d7bd7384a37c 560 if (num_np_open == 0) {
grzemich 0:d7bd7384a37c 561 /* nothing to do */
grzemich 0:d7bd7384a37c 562 lcp_close(0, "No network protocols running");
grzemich 0:d7bd7384a37c 563 }
grzemich 0:d7bd7384a37c 564 }
grzemich 0:d7bd7384a37c 565 /* @todo: add void start_networks(void) here (pppd 2.3.11) */
grzemich 0:d7bd7384a37c 566
grzemich 0:d7bd7384a37c 567 /*
grzemich 0:d7bd7384a37c 568 * The peer has failed to authenticate himself using `protocol'.
grzemich 0:d7bd7384a37c 569 */
grzemich 0:d7bd7384a37c 570 void
grzemich 0:d7bd7384a37c 571 auth_peer_fail(int unit, u16_t protocol)
grzemich 0:d7bd7384a37c 572 {
grzemich 0:d7bd7384a37c 573 LWIP_UNUSED_ARG(protocol);
grzemich 0:d7bd7384a37c 574
grzemich 0:d7bd7384a37c 575 AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
grzemich 0:d7bd7384a37c 576 /*
grzemich 0:d7bd7384a37c 577 * Authentication failure: take the link down
grzemich 0:d7bd7384a37c 578 */
grzemich 0:d7bd7384a37c 579 lcp_close(unit, "Authentication failed");
grzemich 0:d7bd7384a37c 580 }
grzemich 0:d7bd7384a37c 581
grzemich 0:d7bd7384a37c 582
grzemich 0:d7bd7384a37c 583 #if PAP_SUPPORT || CHAP_SUPPORT
grzemich 0:d7bd7384a37c 584 /*
grzemich 0:d7bd7384a37c 585 * The peer has been successfully authenticated using `protocol'.
grzemich 0:d7bd7384a37c 586 */
grzemich 0:d7bd7384a37c 587 void
grzemich 0:d7bd7384a37c 588 auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
grzemich 0:d7bd7384a37c 589 {
grzemich 0:d7bd7384a37c 590 int pbit;
grzemich 0:d7bd7384a37c 591
grzemich 0:d7bd7384a37c 592 AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
grzemich 0:d7bd7384a37c 593 switch (protocol) {
grzemich 0:d7bd7384a37c 594 case PPP_CHAP:
grzemich 0:d7bd7384a37c 595 pbit = CHAP_PEER;
grzemich 0:d7bd7384a37c 596 break;
grzemich 0:d7bd7384a37c 597 case PPP_PAP:
grzemich 0:d7bd7384a37c 598 pbit = PAP_PEER;
grzemich 0:d7bd7384a37c 599 break;
grzemich 0:d7bd7384a37c 600 default:
grzemich 0:d7bd7384a37c 601 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
grzemich 0:d7bd7384a37c 602 return;
grzemich 0:d7bd7384a37c 603 }
grzemich 0:d7bd7384a37c 604
grzemich 0:d7bd7384a37c 605 /*
grzemich 0:d7bd7384a37c 606 * Save the authenticated name of the peer for later.
grzemich 0:d7bd7384a37c 607 */
grzemich 0:d7bd7384a37c 608 if (namelen > (int)sizeof(peer_authname) - 1) {
grzemich 0:d7bd7384a37c 609 namelen = sizeof(peer_authname) - 1;
grzemich 0:d7bd7384a37c 610 }
grzemich 0:d7bd7384a37c 611 BCOPY(name, peer_authname, namelen);
grzemich 0:d7bd7384a37c 612 peer_authname[namelen] = 0;
grzemich 0:d7bd7384a37c 613
grzemich 0:d7bd7384a37c 614 /*
grzemich 0:d7bd7384a37c 615 * If there is no more authentication still to be done,
grzemich 0:d7bd7384a37c 616 * proceed to the network (or callback) phase.
grzemich 0:d7bd7384a37c 617 */
grzemich 0:d7bd7384a37c 618 if ((auth_pending[unit] &= ~pbit) == 0) {
grzemich 0:d7bd7384a37c 619 network_phase(unit);
grzemich 0:d7bd7384a37c 620 }
grzemich 0:d7bd7384a37c 621 }
grzemich 0:d7bd7384a37c 622
grzemich 0:d7bd7384a37c 623 /*
grzemich 0:d7bd7384a37c 624 * We have failed to authenticate ourselves to the peer using `protocol'.
grzemich 0:d7bd7384a37c 625 */
grzemich 0:d7bd7384a37c 626 void
grzemich 0:d7bd7384a37c 627 auth_withpeer_fail(int unit, u16_t protocol)
grzemich 0:d7bd7384a37c 628 {
grzemich 0:d7bd7384a37c 629 int errCode = PPPERR_AUTHFAIL;
grzemich 0:d7bd7384a37c 630
grzemich 0:d7bd7384a37c 631 LWIP_UNUSED_ARG(protocol);
grzemich 0:d7bd7384a37c 632
grzemich 0:d7bd7384a37c 633 AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
grzemich 0:d7bd7384a37c 634 if (passwd_from_file) {
grzemich 0:d7bd7384a37c 635 BZERO(ppp_settings.passwd, MAXSECRETLEN);
grzemich 0:d7bd7384a37c 636 }
grzemich 0:d7bd7384a37c 637
grzemich 0:d7bd7384a37c 638 /*
grzemich 0:d7bd7384a37c 639 * We've failed to authenticate ourselves to our peer.
grzemich 0:d7bd7384a37c 640 * He'll probably take the link down, and there's not much
grzemich 0:d7bd7384a37c 641 * we can do except wait for that.
grzemich 0:d7bd7384a37c 642 */
grzemich 0:d7bd7384a37c 643 pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
grzemich 0:d7bd7384a37c 644 lcp_close(unit, "Failed to authenticate ourselves to peer");
grzemich 0:d7bd7384a37c 645 }
grzemich 0:d7bd7384a37c 646
grzemich 0:d7bd7384a37c 647 /*
grzemich 0:d7bd7384a37c 648 * We have successfully authenticated ourselves with the peer using `protocol'.
grzemich 0:d7bd7384a37c 649 */
grzemich 0:d7bd7384a37c 650 void
grzemich 0:d7bd7384a37c 651 auth_withpeer_success(int unit, u16_t protocol)
grzemich 0:d7bd7384a37c 652 {
grzemich 0:d7bd7384a37c 653 int pbit;
grzemich 0:d7bd7384a37c 654
grzemich 0:d7bd7384a37c 655 AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
grzemich 0:d7bd7384a37c 656 switch (protocol) {
grzemich 0:d7bd7384a37c 657 case PPP_CHAP:
grzemich 0:d7bd7384a37c 658 pbit = CHAP_WITHPEER;
grzemich 0:d7bd7384a37c 659 break;
grzemich 0:d7bd7384a37c 660 case PPP_PAP:
grzemich 0:d7bd7384a37c 661 if (passwd_from_file) {
grzemich 0:d7bd7384a37c 662 BZERO(ppp_settings.passwd, MAXSECRETLEN);
grzemich 0:d7bd7384a37c 663 }
grzemich 0:d7bd7384a37c 664 pbit = PAP_WITHPEER;
grzemich 0:d7bd7384a37c 665 break;
grzemich 0:d7bd7384a37c 666 default:
grzemich 0:d7bd7384a37c 667 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
grzemich 0:d7bd7384a37c 668 pbit = 0;
grzemich 0:d7bd7384a37c 669 }
grzemich 0:d7bd7384a37c 670
grzemich 0:d7bd7384a37c 671 /*
grzemich 0:d7bd7384a37c 672 * If there is no more authentication still being done,
grzemich 0:d7bd7384a37c 673 * proceed to the network (or callback) phase.
grzemich 0:d7bd7384a37c 674 */
grzemich 0:d7bd7384a37c 675 if ((auth_pending[unit] &= ~pbit) == 0) {
grzemich 0:d7bd7384a37c 676 network_phase(unit);
grzemich 0:d7bd7384a37c 677 }
grzemich 0:d7bd7384a37c 678 }
grzemich 0:d7bd7384a37c 679 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 680
grzemich 0:d7bd7384a37c 681
grzemich 0:d7bd7384a37c 682 /*
grzemich 0:d7bd7384a37c 683 * np_up - a network protocol has come up.
grzemich 0:d7bd7384a37c 684 */
grzemich 0:d7bd7384a37c 685 void
grzemich 0:d7bd7384a37c 686 np_up(int unit, u16_t proto)
grzemich 0:d7bd7384a37c 687 {
grzemich 0:d7bd7384a37c 688 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 689 LWIP_UNUSED_ARG(proto);
grzemich 0:d7bd7384a37c 690
grzemich 0:d7bd7384a37c 691 AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
grzemich 0:d7bd7384a37c 692 if (num_np_up == 0) {
grzemich 0:d7bd7384a37c 693 AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
grzemich 0:d7bd7384a37c 694 /*
grzemich 0:d7bd7384a37c 695 * At this point we consider that the link has come up successfully.
grzemich 0:d7bd7384a37c 696 */
grzemich 0:d7bd7384a37c 697 if (ppp_settings.idle_time_limit > 0) {
grzemich 0:d7bd7384a37c 698 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
grzemich 0:d7bd7384a37c 699 }
grzemich 0:d7bd7384a37c 700
grzemich 0:d7bd7384a37c 701 /*
grzemich 0:d7bd7384a37c 702 * Set a timeout to close the connection once the maximum
grzemich 0:d7bd7384a37c 703 * connect time has expired.
grzemich 0:d7bd7384a37c 704 */
grzemich 0:d7bd7384a37c 705 if (ppp_settings.maxconnect > 0) {
grzemich 0:d7bd7384a37c 706 TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
grzemich 0:d7bd7384a37c 707 }
grzemich 0:d7bd7384a37c 708 }
grzemich 0:d7bd7384a37c 709 ++num_np_up;
grzemich 0:d7bd7384a37c 710 }
grzemich 0:d7bd7384a37c 711
grzemich 0:d7bd7384a37c 712 /*
grzemich 0:d7bd7384a37c 713 * np_down - a network protocol has gone down.
grzemich 0:d7bd7384a37c 714 */
grzemich 0:d7bd7384a37c 715 void
grzemich 0:d7bd7384a37c 716 np_down(int unit, u16_t proto)
grzemich 0:d7bd7384a37c 717 {
grzemich 0:d7bd7384a37c 718 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 719 LWIP_UNUSED_ARG(proto);
grzemich 0:d7bd7384a37c 720
grzemich 0:d7bd7384a37c 721 AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
grzemich 0:d7bd7384a37c 722 if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
grzemich 0:d7bd7384a37c 723 UNTIMEOUT(check_idle, NULL);
grzemich 0:d7bd7384a37c 724 }
grzemich 0:d7bd7384a37c 725 }
grzemich 0:d7bd7384a37c 726
grzemich 0:d7bd7384a37c 727 /*
grzemich 0:d7bd7384a37c 728 * np_finished - a network protocol has finished using the link.
grzemich 0:d7bd7384a37c 729 */
grzemich 0:d7bd7384a37c 730 void
grzemich 0:d7bd7384a37c 731 np_finished(int unit, u16_t proto)
grzemich 0:d7bd7384a37c 732 {
grzemich 0:d7bd7384a37c 733 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 734 LWIP_UNUSED_ARG(proto);
grzemich 0:d7bd7384a37c 735
grzemich 0:d7bd7384a37c 736 AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
grzemich 0:d7bd7384a37c 737 if (--num_np_open <= 0) {
grzemich 0:d7bd7384a37c 738 /* no further use for the link: shut up shop. */
grzemich 0:d7bd7384a37c 739 lcp_close(0, "No network protocols running");
grzemich 0:d7bd7384a37c 740 }
grzemich 0:d7bd7384a37c 741 }
grzemich 0:d7bd7384a37c 742
grzemich 0:d7bd7384a37c 743 /*
grzemich 0:d7bd7384a37c 744 * check_idle - check whether the link has been idle for long
grzemich 0:d7bd7384a37c 745 * enough that we can shut it down.
grzemich 0:d7bd7384a37c 746 */
grzemich 0:d7bd7384a37c 747 static void
grzemich 0:d7bd7384a37c 748 check_idle(void *arg)
grzemich 0:d7bd7384a37c 749 {
grzemich 0:d7bd7384a37c 750 struct ppp_idle idle;
grzemich 0:d7bd7384a37c 751 u_short itime;
grzemich 0:d7bd7384a37c 752
grzemich 0:d7bd7384a37c 753 LWIP_UNUSED_ARG(arg);
grzemich 0:d7bd7384a37c 754 if (!get_idle_time(0, &idle)) {
grzemich 0:d7bd7384a37c 755 return;
grzemich 0:d7bd7384a37c 756 }
grzemich 0:d7bd7384a37c 757 itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
grzemich 0:d7bd7384a37c 758 if (itime >= ppp_settings.idle_time_limit) {
grzemich 0:d7bd7384a37c 759 /* link is idle: shut it down. */
grzemich 0:d7bd7384a37c 760 AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
grzemich 0:d7bd7384a37c 761 lcp_close(0, "Link inactive");
grzemich 0:d7bd7384a37c 762 } else {
grzemich 0:d7bd7384a37c 763 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
grzemich 0:d7bd7384a37c 764 }
grzemich 0:d7bd7384a37c 765 }
grzemich 0:d7bd7384a37c 766
grzemich 0:d7bd7384a37c 767 /*
grzemich 0:d7bd7384a37c 768 * connect_time_expired - log a message and close the connection.
grzemich 0:d7bd7384a37c 769 */
grzemich 0:d7bd7384a37c 770 static void
grzemich 0:d7bd7384a37c 771 connect_time_expired(void *arg)
grzemich 0:d7bd7384a37c 772 {
grzemich 0:d7bd7384a37c 773 LWIP_UNUSED_ARG(arg);
grzemich 0:d7bd7384a37c 774
grzemich 0:d7bd7384a37c 775 AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
grzemich 0:d7bd7384a37c 776 lcp_close(0, "Connect time expired"); /* Close connection */
grzemich 0:d7bd7384a37c 777 }
grzemich 0:d7bd7384a37c 778
grzemich 0:d7bd7384a37c 779 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 780 /*
grzemich 0:d7bd7384a37c 781 * auth_check_options - called to check authentication options.
grzemich 0:d7bd7384a37c 782 */
grzemich 0:d7bd7384a37c 783 void
grzemich 0:d7bd7384a37c 784 auth_check_options(void)
grzemich 0:d7bd7384a37c 785 {
grzemich 0:d7bd7384a37c 786 lcp_options *wo = &lcp_wantoptions[0];
grzemich 0:d7bd7384a37c 787 int can_auth;
grzemich 0:d7bd7384a37c 788 ipcp_options *ipwo = &ipcp_wantoptions[0];
grzemich 0:d7bd7384a37c 789 u32_t remote;
grzemich 0:d7bd7384a37c 790
grzemich 0:d7bd7384a37c 791 /* Default our_name to hostname, and user to our_name */
grzemich 0:d7bd7384a37c 792 if (ppp_settings.our_name[0] == 0 || ppp_settings.usehostname) {
grzemich 0:d7bd7384a37c 793 strcpy(ppp_settings.our_name, ppp_settings.hostname);
grzemich 0:d7bd7384a37c 794 }
grzemich 0:d7bd7384a37c 795
grzemich 0:d7bd7384a37c 796 if (ppp_settings.user[0] == 0) {
grzemich 0:d7bd7384a37c 797 strcpy(ppp_settings.user, ppp_settings.our_name);
grzemich 0:d7bd7384a37c 798 }
grzemich 0:d7bd7384a37c 799
grzemich 0:d7bd7384a37c 800 /* If authentication is required, ask peer for CHAP or PAP. */
grzemich 0:d7bd7384a37c 801 if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
grzemich 0:d7bd7384a37c 802 wo->neg_chap = 1;
grzemich 0:d7bd7384a37c 803 wo->neg_upap = 1;
grzemich 0:d7bd7384a37c 804 }
grzemich 0:d7bd7384a37c 805
grzemich 0:d7bd7384a37c 806 /*
grzemich 0:d7bd7384a37c 807 * Check whether we have appropriate secrets to use
grzemich 0:d7bd7384a37c 808 * to authenticate the peer.
grzemich 0:d7bd7384a37c 809 */
grzemich 0:d7bd7384a37c 810 can_auth = wo->neg_upap && have_pap_secret();
grzemich 0:d7bd7384a37c 811 if (!can_auth && wo->neg_chap) {
grzemich 0:d7bd7384a37c 812 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
grzemich 0:d7bd7384a37c 813 can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
grzemich 0:d7bd7384a37c 814 }
grzemich 0:d7bd7384a37c 815
grzemich 0:d7bd7384a37c 816 if (ppp_settings.auth_required && !can_auth) {
grzemich 0:d7bd7384a37c 817 ppp_panic("No auth secret");
grzemich 0:d7bd7384a37c 818 }
grzemich 0:d7bd7384a37c 819 }
grzemich 0:d7bd7384a37c 820 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 821
grzemich 0:d7bd7384a37c 822 /*
grzemich 0:d7bd7384a37c 823 * auth_reset - called when LCP is starting negotiations to recheck
grzemich 0:d7bd7384a37c 824 * authentication options, i.e. whether we have appropriate secrets
grzemich 0:d7bd7384a37c 825 * to use for authenticating ourselves and/or the peer.
grzemich 0:d7bd7384a37c 826 */
grzemich 0:d7bd7384a37c 827 void
grzemich 0:d7bd7384a37c 828 auth_reset(int unit)
grzemich 0:d7bd7384a37c 829 {
grzemich 0:d7bd7384a37c 830 lcp_options *go = &lcp_gotoptions[unit];
grzemich 0:d7bd7384a37c 831 lcp_options *ao = &lcp_allowoptions[0];
grzemich 0:d7bd7384a37c 832 ipcp_options *ipwo = &ipcp_wantoptions[0];
grzemich 0:d7bd7384a37c 833 u32_t remote;
grzemich 0:d7bd7384a37c 834
grzemich 0:d7bd7384a37c 835 AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
grzemich 0:d7bd7384a37c 836 ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 || get_pap_passwd(unit, NULL, NULL));
grzemich 0:d7bd7384a37c 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)*/;
grzemich 0:d7bd7384a37c 838
grzemich 0:d7bd7384a37c 839 if (go->neg_upap && !have_pap_secret()) {
grzemich 0:d7bd7384a37c 840 go->neg_upap = 0;
grzemich 0:d7bd7384a37c 841 }
grzemich 0:d7bd7384a37c 842 if (go->neg_chap) {
grzemich 0:d7bd7384a37c 843 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
grzemich 0:d7bd7384a37c 844 if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
grzemich 0:d7bd7384a37c 845 go->neg_chap = 0;
grzemich 0:d7bd7384a37c 846 }
grzemich 0:d7bd7384a37c 847 }
grzemich 0:d7bd7384a37c 848 }
grzemich 0:d7bd7384a37c 849
grzemich 0:d7bd7384a37c 850 #if PAP_SUPPORT
grzemich 0:d7bd7384a37c 851 /*
grzemich 0:d7bd7384a37c 852 * check_passwd - Check the user name and passwd against the PAP secrets
grzemich 0:d7bd7384a37c 853 * file. If requested, also check against the system password database,
grzemich 0:d7bd7384a37c 854 * and login the user if OK.
grzemich 0:d7bd7384a37c 855 *
grzemich 0:d7bd7384a37c 856 * returns:
grzemich 0:d7bd7384a37c 857 * UPAP_AUTHNAK: Authentication failed.
grzemich 0:d7bd7384a37c 858 * UPAP_AUTHACK: Authentication succeeded.
grzemich 0:d7bd7384a37c 859 * In either case, msg points to an appropriate message.
grzemich 0:d7bd7384a37c 860 */
grzemich 0:d7bd7384a37c 861 u_char
grzemich 0:d7bd7384a37c 862 check_passwd( int unit, char *auser, int userlen, char *apasswd, int passwdlen, char **msg, int *msglen)
grzemich 0:d7bd7384a37c 863 {
grzemich 0:d7bd7384a37c 864 #if 1 /* XXX Assume all entries OK. */
grzemich 0:d7bd7384a37c 865 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 866 LWIP_UNUSED_ARG(auser);
grzemich 0:d7bd7384a37c 867 LWIP_UNUSED_ARG(userlen);
grzemich 0:d7bd7384a37c 868 LWIP_UNUSED_ARG(apasswd);
grzemich 0:d7bd7384a37c 869 LWIP_UNUSED_ARG(passwdlen);
grzemich 0:d7bd7384a37c 870 LWIP_UNUSED_ARG(msglen);
grzemich 0:d7bd7384a37c 871 *msg = (char *) 0;
grzemich 0:d7bd7384a37c 872 return UPAP_AUTHACK; /* XXX Assume all entries OK. */
grzemich 0:d7bd7384a37c 873 #else
grzemich 0:d7bd7384a37c 874 u_char ret = 0;
grzemich 0:d7bd7384a37c 875 struct wordlist *addrs = NULL;
grzemich 0:d7bd7384a37c 876 char passwd[256], user[256];
grzemich 0:d7bd7384a37c 877 char secret[MAXWORDLEN];
grzemich 0:d7bd7384a37c 878 static u_short attempts = 0;
grzemich 0:d7bd7384a37c 879
grzemich 0:d7bd7384a37c 880 /*
grzemich 0:d7bd7384a37c 881 * Make copies of apasswd and auser, then null-terminate them.
grzemich 0:d7bd7384a37c 882 */
grzemich 0:d7bd7384a37c 883 BCOPY(apasswd, passwd, passwdlen);
grzemich 0:d7bd7384a37c 884 passwd[passwdlen] = '\0';
grzemich 0:d7bd7384a37c 885 BCOPY(auser, user, userlen);
grzemich 0:d7bd7384a37c 886 user[userlen] = '\0';
grzemich 0:d7bd7384a37c 887 *msg = (char *) 0;
grzemich 0:d7bd7384a37c 888
grzemich 0:d7bd7384a37c 889 /* XXX Validate user name and password. */
grzemich 0:d7bd7384a37c 890 ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
grzemich 0:d7bd7384a37c 891
grzemich 0:d7bd7384a37c 892 if (ret == UPAP_AUTHNAK) {
grzemich 0:d7bd7384a37c 893 if (*msg == (char *) 0) {
grzemich 0:d7bd7384a37c 894 *msg = "Login incorrect";
grzemich 0:d7bd7384a37c 895 }
grzemich 0:d7bd7384a37c 896 *msglen = strlen(*msg);
grzemich 0:d7bd7384a37c 897 /*
grzemich 0:d7bd7384a37c 898 * Frustrate passwd stealer programs.
grzemich 0:d7bd7384a37c 899 * Allow 10 tries, but start backing off after 3 (stolen from login).
grzemich 0:d7bd7384a37c 900 * On 10'th, drop the connection.
grzemich 0:d7bd7384a37c 901 */
grzemich 0:d7bd7384a37c 902 if (attempts++ >= 10) {
grzemich 0:d7bd7384a37c 903 AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
grzemich 0:d7bd7384a37c 904 /*ppp_panic("Excess Bad Logins");*/
grzemich 0:d7bd7384a37c 905 }
grzemich 0:d7bd7384a37c 906 if (attempts > 3) {
grzemich 0:d7bd7384a37c 907 /* @todo: this was sleep(), i.e. seconds, not milliseconds
grzemich 0:d7bd7384a37c 908 * I don't think we really need this in lwIP - we would block tcpip_thread!
grzemich 0:d7bd7384a37c 909 */
grzemich 0:d7bd7384a37c 910 /*sys_msleep((attempts - 3) * 5);*/
grzemich 0:d7bd7384a37c 911 }
grzemich 0:d7bd7384a37c 912 if (addrs != NULL) {
grzemich 0:d7bd7384a37c 913 free_wordlist(addrs);
grzemich 0:d7bd7384a37c 914 }
grzemich 0:d7bd7384a37c 915 } else {
grzemich 0:d7bd7384a37c 916 attempts = 0; /* Reset count */
grzemich 0:d7bd7384a37c 917 if (*msg == (char *) 0) {
grzemich 0:d7bd7384a37c 918 *msg = "Login ok";
grzemich 0:d7bd7384a37c 919 }
grzemich 0:d7bd7384a37c 920 *msglen = strlen(*msg);
grzemich 0:d7bd7384a37c 921 set_allowed_addrs(unit, addrs);
grzemich 0:d7bd7384a37c 922 }
grzemich 0:d7bd7384a37c 923
grzemich 0:d7bd7384a37c 924 BZERO(passwd, sizeof(passwd));
grzemich 0:d7bd7384a37c 925 BZERO(secret, sizeof(secret));
grzemich 0:d7bd7384a37c 926
grzemich 0:d7bd7384a37c 927 return ret;
grzemich 0:d7bd7384a37c 928 #endif
grzemich 0:d7bd7384a37c 929 }
grzemich 0:d7bd7384a37c 930 #endif /* PAP_SUPPORT */
grzemich 0:d7bd7384a37c 931
grzemich 0:d7bd7384a37c 932 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 933 /*
grzemich 0:d7bd7384a37c 934 * This function is needed for PAM.
grzemich 0:d7bd7384a37c 935 */
grzemich 0:d7bd7384a37c 936
grzemich 0:d7bd7384a37c 937 #ifdef USE_PAM
grzemich 0:d7bd7384a37c 938
grzemich 0:d7bd7384a37c 939 /* lwip does not support PAM*/
grzemich 0:d7bd7384a37c 940
grzemich 0:d7bd7384a37c 941 #endif /* USE_PAM */
grzemich 0:d7bd7384a37c 942
grzemich 0:d7bd7384a37c 943 #endif /* UNUSED */
grzemich 0:d7bd7384a37c 944
grzemich 0:d7bd7384a37c 945
grzemich 0:d7bd7384a37c 946 #if 0 /* UNUSED */
grzemich 0:d7bd7384a37c 947 /*
grzemich 0:d7bd7384a37c 948 * plogin - Check the user name and password against the system
grzemich 0:d7bd7384a37c 949 * password database, and login the user if OK.
grzemich 0:d7bd7384a37c 950 *
grzemich 0:d7bd7384a37c 951 * returns:
grzemich 0:d7bd7384a37c 952 * UPAP_AUTHNAK: Login failed.
grzemich 0:d7bd7384a37c 953 * UPAP_AUTHACK: Login succeeded.
grzemich 0:d7bd7384a37c 954 * In either case, msg points to an appropriate message.
grzemich 0:d7bd7384a37c 955 */
grzemich 0:d7bd7384a37c 956 static int
grzemich 0:d7bd7384a37c 957 plogin(char *user, char *passwd, char **msg, int *msglen)
grzemich 0:d7bd7384a37c 958 {
grzemich 0:d7bd7384a37c 959
grzemich 0:d7bd7384a37c 960 LWIP_UNUSED_ARG(user);
grzemich 0:d7bd7384a37c 961 LWIP_UNUSED_ARG(passwd);
grzemich 0:d7bd7384a37c 962 LWIP_UNUSED_ARG(msg);
grzemich 0:d7bd7384a37c 963 LWIP_UNUSED_ARG(msglen);
grzemich 0:d7bd7384a37c 964
grzemich 0:d7bd7384a37c 965
grzemich 0:d7bd7384a37c 966 /* The new lines are here align the file when
grzemich 0:d7bd7384a37c 967 * compared against the pppd 2.3.11 code */
grzemich 0:d7bd7384a37c 968
grzemich 0:d7bd7384a37c 969
grzemich 0:d7bd7384a37c 970
grzemich 0:d7bd7384a37c 971
grzemich 0:d7bd7384a37c 972
grzemich 0:d7bd7384a37c 973
grzemich 0:d7bd7384a37c 974
grzemich 0:d7bd7384a37c 975
grzemich 0:d7bd7384a37c 976
grzemich 0:d7bd7384a37c 977
grzemich 0:d7bd7384a37c 978
grzemich 0:d7bd7384a37c 979
grzemich 0:d7bd7384a37c 980
grzemich 0:d7bd7384a37c 981
grzemich 0:d7bd7384a37c 982
grzemich 0:d7bd7384a37c 983
grzemich 0:d7bd7384a37c 984 /* XXX Fail until we decide that we want to support logins. */
grzemich 0:d7bd7384a37c 985 return (UPAP_AUTHNAK);
grzemich 0:d7bd7384a37c 986 }
grzemich 0:d7bd7384a37c 987 #endif
grzemich 0:d7bd7384a37c 988
grzemich 0:d7bd7384a37c 989
grzemich 0:d7bd7384a37c 990
grzemich 0:d7bd7384a37c 991 /*
grzemich 0:d7bd7384a37c 992 * plogout - Logout the user.
grzemich 0:d7bd7384a37c 993 */
grzemich 0:d7bd7384a37c 994 static void
grzemich 0:d7bd7384a37c 995 plogout(void)
grzemich 0:d7bd7384a37c 996 {
grzemich 0:d7bd7384a37c 997 logged_in = 0;
grzemich 0:d7bd7384a37c 998 }
grzemich 0:d7bd7384a37c 999
grzemich 0:d7bd7384a37c 1000 /*
grzemich 0:d7bd7384a37c 1001 * null_login - Check if a username of "" and a password of "" are
grzemich 0:d7bd7384a37c 1002 * acceptable, and iff so, set the list of acceptable IP addresses
grzemich 0:d7bd7384a37c 1003 * and return 1.
grzemich 0:d7bd7384a37c 1004 */
grzemich 0:d7bd7384a37c 1005 static int
grzemich 0:d7bd7384a37c 1006 null_login(int unit)
grzemich 0:d7bd7384a37c 1007 {
grzemich 0:d7bd7384a37c 1008 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 1009 /* XXX Fail until we decide that we want to support logins. */
grzemich 0:d7bd7384a37c 1010 return 0;
grzemich 0:d7bd7384a37c 1011 }
grzemich 0:d7bd7384a37c 1012
grzemich 0:d7bd7384a37c 1013
grzemich 0:d7bd7384a37c 1014 /*
grzemich 0:d7bd7384a37c 1015 * get_pap_passwd - get a password for authenticating ourselves with
grzemich 0:d7bd7384a37c 1016 * our peer using PAP. Returns 1 on success, 0 if no suitable password
grzemich 0:d7bd7384a37c 1017 * could be found.
grzemich 0:d7bd7384a37c 1018 */
grzemich 0:d7bd7384a37c 1019 static int
grzemich 0:d7bd7384a37c 1020 get_pap_passwd(int unit, char *user, char *passwd)
grzemich 0:d7bd7384a37c 1021 {
grzemich 0:d7bd7384a37c 1022 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 1023 /* normally we would reject PAP if no password is provided,
grzemich 0:d7bd7384a37c 1024 but this causes problems with some providers (like CHT in Taiwan)
grzemich 0:d7bd7384a37c 1025 who incorrectly request PAP and expect a bogus/empty password, so
grzemich 0:d7bd7384a37c 1026 always provide a default user/passwd of "none"/"none"
grzemich 0:d7bd7384a37c 1027
grzemich 0:d7bd7384a37c 1028 @todo: This should be configured by the user, instead of being hardcoded here!
grzemich 0:d7bd7384a37c 1029 */
grzemich 0:d7bd7384a37c 1030 if(user) {
grzemich 0:d7bd7384a37c 1031 strcpy(user, "none");
grzemich 0:d7bd7384a37c 1032 }
grzemich 0:d7bd7384a37c 1033 if(passwd) {
grzemich 0:d7bd7384a37c 1034 strcpy(passwd, "none");
grzemich 0:d7bd7384a37c 1035 }
grzemich 0:d7bd7384a37c 1036 return 1;
grzemich 0:d7bd7384a37c 1037 }
grzemich 0:d7bd7384a37c 1038
grzemich 0:d7bd7384a37c 1039 /*
grzemich 0:d7bd7384a37c 1040 * have_pap_secret - check whether we have a PAP file with any
grzemich 0:d7bd7384a37c 1041 * secrets that we could possibly use for authenticating the peer.
grzemich 0:d7bd7384a37c 1042 */
grzemich 0:d7bd7384a37c 1043 static int
grzemich 0:d7bd7384a37c 1044 have_pap_secret(void)
grzemich 0:d7bd7384a37c 1045 {
grzemich 0:d7bd7384a37c 1046 /* XXX Fail until we set up our passwords. */
grzemich 0:d7bd7384a37c 1047 return 0;
grzemich 0:d7bd7384a37c 1048 }
grzemich 0:d7bd7384a37c 1049
grzemich 0:d7bd7384a37c 1050 /*
grzemich 0:d7bd7384a37c 1051 * have_chap_secret - check whether we have a CHAP file with a
grzemich 0:d7bd7384a37c 1052 * secret that we could possibly use for authenticating `client'
grzemich 0:d7bd7384a37c 1053 * on `server'. Either can be the null string, meaning we don't
grzemich 0:d7bd7384a37c 1054 * know the identity yet.
grzemich 0:d7bd7384a37c 1055 */
grzemich 0:d7bd7384a37c 1056 static int
grzemich 0:d7bd7384a37c 1057 have_chap_secret(char *client, char *server, u32_t remote)
grzemich 0:d7bd7384a37c 1058 {
grzemich 0:d7bd7384a37c 1059 LWIP_UNUSED_ARG(client);
grzemich 0:d7bd7384a37c 1060 LWIP_UNUSED_ARG(server);
grzemich 0:d7bd7384a37c 1061 LWIP_UNUSED_ARG(remote);
grzemich 0:d7bd7384a37c 1062
grzemich 0:d7bd7384a37c 1063 /* XXX Fail until we set up our passwords. */
grzemich 0:d7bd7384a37c 1064 return 0;
grzemich 0:d7bd7384a37c 1065 }
grzemich 0:d7bd7384a37c 1066 #if CHAP_SUPPORT
grzemich 0:d7bd7384a37c 1067
grzemich 0:d7bd7384a37c 1068 /*
grzemich 0:d7bd7384a37c 1069 * get_secret - open the CHAP secret file and return the secret
grzemich 0:d7bd7384a37c 1070 * for authenticating the given client on the given server.
grzemich 0:d7bd7384a37c 1071 * (We could be either client or server).
grzemich 0:d7bd7384a37c 1072 */
grzemich 0:d7bd7384a37c 1073 int
grzemich 0:d7bd7384a37c 1074 get_secret(int unit, char *client, char *server, char *secret, int *secret_len, int save_addrs)
grzemich 0:d7bd7384a37c 1075 {
grzemich 0:d7bd7384a37c 1076 #if 1
grzemich 0:d7bd7384a37c 1077 int len;
grzemich 0:d7bd7384a37c 1078 struct wordlist *addrs;
grzemich 0:d7bd7384a37c 1079
grzemich 0:d7bd7384a37c 1080 LWIP_UNUSED_ARG(unit);
grzemich 0:d7bd7384a37c 1081 LWIP_UNUSED_ARG(server);
grzemich 0:d7bd7384a37c 1082 LWIP_UNUSED_ARG(save_addrs);
grzemich 0:d7bd7384a37c 1083
grzemich 0:d7bd7384a37c 1084 addrs = NULL;
grzemich 0:d7bd7384a37c 1085
grzemich 0:d7bd7384a37c 1086 if(!client || !client[0] || strcmp(client, ppp_settings.user)) {
grzemich 0:d7bd7384a37c 1087 return 0;
grzemich 0:d7bd7384a37c 1088 }
grzemich 0:d7bd7384a37c 1089
grzemich 0:d7bd7384a37c 1090 len = (int)strlen(ppp_settings.passwd);
grzemich 0:d7bd7384a37c 1091 if (len > MAXSECRETLEN) {
grzemich 0:d7bd7384a37c 1092 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
grzemich 0:d7bd7384a37c 1093 len = MAXSECRETLEN;
grzemich 0:d7bd7384a37c 1094 }
grzemich 0:d7bd7384a37c 1095
grzemich 0:d7bd7384a37c 1096 BCOPY(ppp_settings.passwd, secret, len);
grzemich 0:d7bd7384a37c 1097 *secret_len = len;
grzemich 0:d7bd7384a37c 1098
grzemich 0:d7bd7384a37c 1099 return 1;
grzemich 0:d7bd7384a37c 1100 #else
grzemich 0:d7bd7384a37c 1101 int ret = 0, len;
grzemich 0:d7bd7384a37c 1102 struct wordlist *addrs;
grzemich 0:d7bd7384a37c 1103 char secbuf[MAXWORDLEN];
grzemich 0:d7bd7384a37c 1104
grzemich 0:d7bd7384a37c 1105 addrs = NULL;
grzemich 0:d7bd7384a37c 1106 secbuf[0] = 0;
grzemich 0:d7bd7384a37c 1107
grzemich 0:d7bd7384a37c 1108 /* XXX Find secret. */
grzemich 0:d7bd7384a37c 1109 if (ret < 0) {
grzemich 0:d7bd7384a37c 1110 return 0;
grzemich 0:d7bd7384a37c 1111 }
grzemich 0:d7bd7384a37c 1112
grzemich 0:d7bd7384a37c 1113 if (save_addrs) {
grzemich 0:d7bd7384a37c 1114 set_allowed_addrs(unit, addrs);
grzemich 0:d7bd7384a37c 1115 }
grzemich 0:d7bd7384a37c 1116
grzemich 0:d7bd7384a37c 1117 len = strlen(secbuf);
grzemich 0:d7bd7384a37c 1118 if (len > MAXSECRETLEN) {
grzemich 0:d7bd7384a37c 1119 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
grzemich 0:d7bd7384a37c 1120 len = MAXSECRETLEN;
grzemich 0:d7bd7384a37c 1121 }
grzemich 0:d7bd7384a37c 1122
grzemich 0:d7bd7384a37c 1123 BCOPY(secbuf, secret, len);
grzemich 0:d7bd7384a37c 1124 BZERO(secbuf, sizeof(secbuf));
grzemich 0:d7bd7384a37c 1125 *secret_len = len;
grzemich 0:d7bd7384a37c 1126
grzemich 0:d7bd7384a37c 1127 return 1;
grzemich 0:d7bd7384a37c 1128 #endif
grzemich 0:d7bd7384a37c 1129 }
grzemich 0:d7bd7384a37c 1130 #endif /* CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 1131
grzemich 0:d7bd7384a37c 1132
grzemich 0:d7bd7384a37c 1133 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 1134 /*
grzemich 0:d7bd7384a37c 1135 * set_allowed_addrs() - set the list of allowed addresses.
grzemich 0:d7bd7384a37c 1136 */
grzemich 0:d7bd7384a37c 1137 static void
grzemich 0:d7bd7384a37c 1138 set_allowed_addrs(int unit, struct wordlist *addrs)
grzemich 0:d7bd7384a37c 1139 {
grzemich 0:d7bd7384a37c 1140 if (addresses[unit] != NULL) {
grzemich 0:d7bd7384a37c 1141 free_wordlist(addresses[unit]);
grzemich 0:d7bd7384a37c 1142 }
grzemich 0:d7bd7384a37c 1143 addresses[unit] = addrs;
grzemich 0:d7bd7384a37c 1144
grzemich 0:d7bd7384a37c 1145 #if 0
grzemich 0:d7bd7384a37c 1146 /*
grzemich 0:d7bd7384a37c 1147 * If there's only one authorized address we might as well
grzemich 0:d7bd7384a37c 1148 * ask our peer for that one right away
grzemich 0:d7bd7384a37c 1149 */
grzemich 0:d7bd7384a37c 1150 if (addrs != NULL && addrs->next == NULL) {
grzemich 0:d7bd7384a37c 1151 char *p = addrs->word;
grzemich 0:d7bd7384a37c 1152 struct ipcp_options *wo = &ipcp_wantoptions[unit];
grzemich 0:d7bd7384a37c 1153 u32_t a;
grzemich 0:d7bd7384a37c 1154 struct hostent *hp;
grzemich 0:d7bd7384a37c 1155
grzemich 0:d7bd7384a37c 1156 if (wo->hisaddr == 0 && *p != '!' && *p != '-' && strchr(p, '/') == NULL) {
grzemich 0:d7bd7384a37c 1157 hp = gethostbyname(p);
grzemich 0:d7bd7384a37c 1158 if (hp != NULL && hp->h_addrtype == AF_INET) {
grzemich 0:d7bd7384a37c 1159 a = *(u32_t *)hp->h_addr;
grzemich 0:d7bd7384a37c 1160 } else {
grzemich 0:d7bd7384a37c 1161 a = inet_addr(p);
grzemich 0:d7bd7384a37c 1162 }
grzemich 0:d7bd7384a37c 1163 if (a != (u32_t) -1) {
grzemich 0:d7bd7384a37c 1164 wo->hisaddr = a;
grzemich 0:d7bd7384a37c 1165 }
grzemich 0:d7bd7384a37c 1166 }
grzemich 0:d7bd7384a37c 1167 }
grzemich 0:d7bd7384a37c 1168 #endif
grzemich 0:d7bd7384a37c 1169 }
grzemich 0:d7bd7384a37c 1170 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 1171
grzemich 0:d7bd7384a37c 1172 /*
grzemich 0:d7bd7384a37c 1173 * auth_ip_addr - check whether the peer is authorized to use
grzemich 0:d7bd7384a37c 1174 * a given IP address. Returns 1 if authorized, 0 otherwise.
grzemich 0:d7bd7384a37c 1175 */
grzemich 0:d7bd7384a37c 1176 int
grzemich 0:d7bd7384a37c 1177 auth_ip_addr(int unit, u32_t addr)
grzemich 0:d7bd7384a37c 1178 {
grzemich 0:d7bd7384a37c 1179 return ip_addr_check(addr, addresses[unit]);
grzemich 0:d7bd7384a37c 1180 }
grzemich 0:d7bd7384a37c 1181
grzemich 0:d7bd7384a37c 1182 static int /* @todo: integrate this funtion into auth_ip_addr()*/
grzemich 0:d7bd7384a37c 1183 ip_addr_check(u32_t addr, struct wordlist *addrs)
grzemich 0:d7bd7384a37c 1184 {
grzemich 0:d7bd7384a37c 1185 /* don't allow loopback or multicast address */
grzemich 0:d7bd7384a37c 1186 if (bad_ip_adrs(addr)) {
grzemich 0:d7bd7384a37c 1187 return 0;
grzemich 0:d7bd7384a37c 1188 }
grzemich 0:d7bd7384a37c 1189
grzemich 0:d7bd7384a37c 1190 if (addrs == NULL) {
grzemich 0:d7bd7384a37c 1191 return !ppp_settings.auth_required; /* no addresses authorized */
grzemich 0:d7bd7384a37c 1192 }
grzemich 0:d7bd7384a37c 1193
grzemich 0:d7bd7384a37c 1194 /* XXX All other addresses allowed. */
grzemich 0:d7bd7384a37c 1195 return 1;
grzemich 0:d7bd7384a37c 1196 }
grzemich 0:d7bd7384a37c 1197
grzemich 0:d7bd7384a37c 1198 /*
grzemich 0:d7bd7384a37c 1199 * bad_ip_adrs - return 1 if the IP address is one we don't want
grzemich 0:d7bd7384a37c 1200 * to use, such as an address in the loopback net or a multicast address.
grzemich 0:d7bd7384a37c 1201 * addr is in network byte order.
grzemich 0:d7bd7384a37c 1202 */
grzemich 0:d7bd7384a37c 1203 int
grzemich 0:d7bd7384a37c 1204 bad_ip_adrs(u32_t addr)
grzemich 0:d7bd7384a37c 1205 {
grzemich 0:d7bd7384a37c 1206 addr = ntohl(addr);
grzemich 0:d7bd7384a37c 1207 return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
grzemich 0:d7bd7384a37c 1208 || IN_MULTICAST(addr) || IN_BADCLASS(addr);
grzemich 0:d7bd7384a37c 1209 }
grzemich 0:d7bd7384a37c 1210
grzemich 0:d7bd7384a37c 1211 #if 0 /* UNUSED */ /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 1212 /*
grzemich 0:d7bd7384a37c 1213 * some_ip_ok - check a wordlist to see if it authorizes any
grzemich 0:d7bd7384a37c 1214 * IP address(es).
grzemich 0:d7bd7384a37c 1215 */
grzemich 0:d7bd7384a37c 1216 static int
grzemich 0:d7bd7384a37c 1217 some_ip_ok(struct wordlist *addrs)
grzemich 0:d7bd7384a37c 1218 {
grzemich 0:d7bd7384a37c 1219 for (; addrs != 0; addrs = addrs->next) {
grzemich 0:d7bd7384a37c 1220 if (addrs->word[0] == '-')
grzemich 0:d7bd7384a37c 1221 break;
grzemich 0:d7bd7384a37c 1222 if (addrs->word[0] != '!')
grzemich 0:d7bd7384a37c 1223 return 1; /* some IP address is allowed */
grzemich 0:d7bd7384a37c 1224 }
grzemich 0:d7bd7384a37c 1225 return 0;
grzemich 0:d7bd7384a37c 1226 }
grzemich 0:d7bd7384a37c 1227
grzemich 0:d7bd7384a37c 1228 /*
grzemich 0:d7bd7384a37c 1229 * check_access - complain if a secret file has too-liberal permissions.
grzemich 0:d7bd7384a37c 1230 */
grzemich 0:d7bd7384a37c 1231 static void
grzemich 0:d7bd7384a37c 1232 check_access(FILE *f, char *filename)
grzemich 0:d7bd7384a37c 1233 {
grzemich 0:d7bd7384a37c 1234 struct stat sbuf;
grzemich 0:d7bd7384a37c 1235
grzemich 0:d7bd7384a37c 1236 if (fstat(fileno(f), &sbuf) < 0) {
grzemich 0:d7bd7384a37c 1237 warn("cannot stat secret file %s: %m", filename);
grzemich 0:d7bd7384a37c 1238 } else if ((sbuf.st_mode & (S_IRWXG | S_IRWXO)) != 0) {
grzemich 0:d7bd7384a37c 1239 warn("Warning - secret file %s has world and/or group access",
grzemich 0:d7bd7384a37c 1240 filename);
grzemich 0:d7bd7384a37c 1241 }
grzemich 0:d7bd7384a37c 1242 }
grzemich 0:d7bd7384a37c 1243
grzemich 0:d7bd7384a37c 1244
grzemich 0:d7bd7384a37c 1245 /*
grzemich 0:d7bd7384a37c 1246 * scan_authfile - Scan an authorization file for a secret suitable
grzemich 0:d7bd7384a37c 1247 * for authenticating `client' on `server'. The return value is -1
grzemich 0:d7bd7384a37c 1248 * if no secret is found, otherwise >= 0. The return value has
grzemich 0:d7bd7384a37c 1249 * NONWILD_CLIENT set if the secret didn't have "*" for the client, and
grzemich 0:d7bd7384a37c 1250 * NONWILD_SERVER set if the secret didn't have "*" for the server.
grzemich 0:d7bd7384a37c 1251 * Any following words on the line up to a "--" (i.e. address authorization
grzemich 0:d7bd7384a37c 1252 * info) are placed in a wordlist and returned in *addrs. Any
grzemich 0:d7bd7384a37c 1253 * following words (extra options) are placed in a wordlist and
grzemich 0:d7bd7384a37c 1254 * returned in *opts.
grzemich 0:d7bd7384a37c 1255 * We assume secret is NULL or points to MAXWORDLEN bytes of space.
grzemich 0:d7bd7384a37c 1256 */
grzemich 0:d7bd7384a37c 1257 static int
grzemich 0:d7bd7384a37c 1258 scan_authfile(FILE *f, char *client, char *server, char *secret, struct wordlist **addrs, struct wordlist **opts, char *filename)
grzemich 0:d7bd7384a37c 1259 {
grzemich 0:d7bd7384a37c 1260 /* We do not (currently) need this in lwip */
grzemich 0:d7bd7384a37c 1261 return 0; /* dummy */
grzemich 0:d7bd7384a37c 1262 }
grzemich 0:d7bd7384a37c 1263 /*
grzemich 0:d7bd7384a37c 1264 * free_wordlist - release memory allocated for a wordlist.
grzemich 0:d7bd7384a37c 1265 */
grzemich 0:d7bd7384a37c 1266 static void
grzemich 0:d7bd7384a37c 1267 free_wordlist(struct wordlist *wp)
grzemich 0:d7bd7384a37c 1268 {
grzemich 0:d7bd7384a37c 1269 struct wordlist *next;
grzemich 0:d7bd7384a37c 1270
grzemich 0:d7bd7384a37c 1271 while (wp != NULL) {
grzemich 0:d7bd7384a37c 1272 next = wp->next;
grzemich 0:d7bd7384a37c 1273 free(wp);
grzemich 0:d7bd7384a37c 1274 wp = next;
grzemich 0:d7bd7384a37c 1275 }
grzemich 0:d7bd7384a37c 1276 }
grzemich 0:d7bd7384a37c 1277
grzemich 0:d7bd7384a37c 1278 /*
grzemich 0:d7bd7384a37c 1279 * auth_script_done - called when the auth-up or auth-down script
grzemich 0:d7bd7384a37c 1280 * has finished.
grzemich 0:d7bd7384a37c 1281 */
grzemich 0:d7bd7384a37c 1282 static void
grzemich 0:d7bd7384a37c 1283 auth_script_done(void *arg)
grzemich 0:d7bd7384a37c 1284 {
grzemich 0:d7bd7384a37c 1285 auth_script_pid = 0;
grzemich 0:d7bd7384a37c 1286 switch (auth_script_state) {
grzemich 0:d7bd7384a37c 1287 case s_up:
grzemich 0:d7bd7384a37c 1288 if (auth_state == s_down) {
grzemich 0:d7bd7384a37c 1289 auth_script_state = s_down;
grzemich 0:d7bd7384a37c 1290 auth_script(_PATH_AUTHDOWN);
grzemich 0:d7bd7384a37c 1291 }
grzemich 0:d7bd7384a37c 1292 break;
grzemich 0:d7bd7384a37c 1293 case s_down:
grzemich 0:d7bd7384a37c 1294 if (auth_state == s_up) {
grzemich 0:d7bd7384a37c 1295 auth_script_state = s_up;
grzemich 0:d7bd7384a37c 1296 auth_script(_PATH_AUTHUP);
grzemich 0:d7bd7384a37c 1297 }
grzemich 0:d7bd7384a37c 1298 break;
grzemich 0:d7bd7384a37c 1299 }
grzemich 0:d7bd7384a37c 1300 }
grzemich 0:d7bd7384a37c 1301
grzemich 0:d7bd7384a37c 1302 /*
grzemich 0:d7bd7384a37c 1303 * auth_script - execute a script with arguments
grzemich 0:d7bd7384a37c 1304 * interface-name peer-name real-user tty speed
grzemich 0:d7bd7384a37c 1305 */
grzemich 0:d7bd7384a37c 1306 static void
grzemich 0:d7bd7384a37c 1307 auth_script(char *script)
grzemich 0:d7bd7384a37c 1308 {
grzemich 0:d7bd7384a37c 1309 char strspeed[32];
grzemich 0:d7bd7384a37c 1310 struct passwd *pw;
grzemich 0:d7bd7384a37c 1311 char struid[32];
grzemich 0:d7bd7384a37c 1312 char *user_name;
grzemich 0:d7bd7384a37c 1313 char *argv[8];
grzemich 0:d7bd7384a37c 1314
grzemich 0:d7bd7384a37c 1315 if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
grzemich 0:d7bd7384a37c 1316 user_name = pw->pw_name;
grzemich 0:d7bd7384a37c 1317 else {
grzemich 0:d7bd7384a37c 1318 slprintf(struid, sizeof(struid), "%d", getuid());
grzemich 0:d7bd7384a37c 1319 user_name = struid;
grzemich 0:d7bd7384a37c 1320 }
grzemich 0:d7bd7384a37c 1321 slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
grzemich 0:d7bd7384a37c 1322
grzemich 0:d7bd7384a37c 1323 argv[0] = script;
grzemich 0:d7bd7384a37c 1324 argv[1] = ifname;
grzemich 0:d7bd7384a37c 1325 argv[2] = peer_authname;
grzemich 0:d7bd7384a37c 1326 argv[3] = user_name;
grzemich 0:d7bd7384a37c 1327 argv[4] = devnam;
grzemich 0:d7bd7384a37c 1328 argv[5] = strspeed;
grzemich 0:d7bd7384a37c 1329 argv[6] = NULL;
grzemich 0:d7bd7384a37c 1330
grzemich 0:d7bd7384a37c 1331 auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
grzemich 0:d7bd7384a37c 1332 }
grzemich 0:d7bd7384a37c 1333 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
grzemich 0:d7bd7384a37c 1334 #endif /* PPP_SUPPORT */