IBM Watson IoT / Mbed OS IBMIoTClientEthernetExample

Contains example code to connect the mbed LPC1768 or FRDM-K64F devices to the IBM Internet of Things Cloud service via ethernet.

Dependencies:   C12832 MQTT LM75B MMA7660

Dependents:   MFT_IoT_demo_USB400 IBM_RFID

EthernetInterface/lwip/netif/ppp/auth.c@6:37b6d0d56190, 2014-08-20 (annotated)

Committer:
samdanbury
Date:
Wed Aug 20 12:45:14 2014 +0000
Revision:
6:37b6d0d56190
Code completely changed to improve the structure, flow and memory usage of the application

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samdanbury 6:37b6d0d56190 1 /*****************************************************************************
samdanbury 6:37b6d0d56190 2 * auth.c - Network Authentication and Phase Control program file.
samdanbury 6:37b6d0d56190 3 *
samdanbury 6:37b6d0d56190 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
samdanbury 6:37b6d0d56190 5 * Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
samdanbury 6:37b6d0d56190 6 *
samdanbury 6:37b6d0d56190 7 * The authors hereby grant permission to use, copy, modify, distribute,
samdanbury 6:37b6d0d56190 8 * and license this software and its documentation for any purpose, provided
samdanbury 6:37b6d0d56190 9 * that existing copyright notices are retained in all copies and that this
samdanbury 6:37b6d0d56190 10 * notice and the following disclaimer are included verbatim in any
samdanbury 6:37b6d0d56190 11 * distributions. No written agreement, license, or royalty fee is required
samdanbury 6:37b6d0d56190 12 * for any of the authorized uses.
samdanbury 6:37b6d0d56190 13 *
samdanbury 6:37b6d0d56190 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
samdanbury 6:37b6d0d56190 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
samdanbury 6:37b6d0d56190 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
samdanbury 6:37b6d0d56190 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
samdanbury 6:37b6d0d56190 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
samdanbury 6:37b6d0d56190 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
samdanbury 6:37b6d0d56190 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
samdanbury 6:37b6d0d56190 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
samdanbury 6:37b6d0d56190 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
samdanbury 6:37b6d0d56190 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
samdanbury 6:37b6d0d56190 24 *
samdanbury 6:37b6d0d56190 25 ******************************************************************************
samdanbury 6:37b6d0d56190 26 * REVISION HISTORY
samdanbury 6:37b6d0d56190 27 *
samdanbury 6:37b6d0d56190 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
samdanbury 6:37b6d0d56190 29 * Ported to lwIP.
samdanbury 6:37b6d0d56190 30 * 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
samdanbury 6:37b6d0d56190 31 * Ported from public pppd code.
samdanbury 6:37b6d0d56190 32 *****************************************************************************/
samdanbury 6:37b6d0d56190 33 /*
samdanbury 6:37b6d0d56190 34 * auth.c - PPP authentication and phase control.
samdanbury 6:37b6d0d56190 35 *
samdanbury 6:37b6d0d56190 36 * Copyright (c) 1993 The Australian National University.
samdanbury 6:37b6d0d56190 37 * All rights reserved.
samdanbury 6:37b6d0d56190 38 *
samdanbury 6:37b6d0d56190 39 * Redistribution and use in source and binary forms are permitted
samdanbury 6:37b6d0d56190 40 * provided that the above copyright notice and this paragraph are
samdanbury 6:37b6d0d56190 41 * duplicated in all such forms and that any documentation,
samdanbury 6:37b6d0d56190 42 * advertising materials, and other materials related to such
samdanbury 6:37b6d0d56190 43 * distribution and use acknowledge that the software was developed
samdanbury 6:37b6d0d56190 44 * by the Australian National University. The name of the University
samdanbury 6:37b6d0d56190 45 * may not be used to endorse or promote products derived from this
samdanbury 6:37b6d0d56190 46 * software without specific prior written permission.
samdanbury 6:37b6d0d56190 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
samdanbury 6:37b6d0d56190 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
samdanbury 6:37b6d0d56190 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
samdanbury 6:37b6d0d56190 50 *
samdanbury 6:37b6d0d56190 51 * Copyright (c) 1989 Carnegie Mellon University.
samdanbury 6:37b6d0d56190 52 * All rights reserved.
samdanbury 6:37b6d0d56190 53 *
samdanbury 6:37b6d0d56190 54 * Redistribution and use in source and binary forms are permitted
samdanbury 6:37b6d0d56190 55 * provided that the above copyright notice and this paragraph are
samdanbury 6:37b6d0d56190 56 * duplicated in all such forms and that any documentation,
samdanbury 6:37b6d0d56190 57 * advertising materials, and other materials related to such
samdanbury 6:37b6d0d56190 58 * distribution and use acknowledge that the software was developed
samdanbury 6:37b6d0d56190 59 * by Carnegie Mellon University. The name of the
samdanbury 6:37b6d0d56190 60 * University may not be used to endorse or promote products derived
samdanbury 6:37b6d0d56190 61 * from this software without specific prior written permission.
samdanbury 6:37b6d0d56190 62 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
samdanbury 6:37b6d0d56190 63 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
samdanbury 6:37b6d0d56190 64 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
samdanbury 6:37b6d0d56190 65 */
samdanbury 6:37b6d0d56190 66
samdanbury 6:37b6d0d56190 67 #include "lwip/opt.h"
samdanbury 6:37b6d0d56190 68
samdanbury 6:37b6d0d56190 69 #if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
samdanbury 6:37b6d0d56190 70
samdanbury 6:37b6d0d56190 71 #include "ppp.h"
samdanbury 6:37b6d0d56190 72 #include "pppdebug.h"
samdanbury 6:37b6d0d56190 73
samdanbury 6:37b6d0d56190 74 #include "fsm.h"
samdanbury 6:37b6d0d56190 75 #include "lcp.h"
samdanbury 6:37b6d0d56190 76 #include "pap.h"
samdanbury 6:37b6d0d56190 77 #include "chap.h"
samdanbury 6:37b6d0d56190 78 #include "auth.h"
samdanbury 6:37b6d0d56190 79 #include "ipcp.h"
samdanbury 6:37b6d0d56190 80
samdanbury 6:37b6d0d56190 81 #if CBCP_SUPPORT
samdanbury 6:37b6d0d56190 82 #include "cbcp.h"
samdanbury 6:37b6d0d56190 83 #endif /* CBCP_SUPPORT */
samdanbury 6:37b6d0d56190 84
samdanbury 6:37b6d0d56190 85 #include "lwip/inet.h"
samdanbury 6:37b6d0d56190 86
samdanbury 6:37b6d0d56190 87 #include <string.h>
samdanbury 6:37b6d0d56190 88
samdanbury 6:37b6d0d56190 89 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 90 /* Bits in scan_authfile return value */
samdanbury 6:37b6d0d56190 91 #define NONWILD_SERVER 1
samdanbury 6:37b6d0d56190 92 #define NONWILD_CLIENT 2
samdanbury 6:37b6d0d56190 93
samdanbury 6:37b6d0d56190 94 #define ISWILD(word) (word[0] == '*' && word[1] == 0)
samdanbury 6:37b6d0d56190 95 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 96
samdanbury 6:37b6d0d56190 97 #if PAP_SUPPORT || CHAP_SUPPORT
samdanbury 6:37b6d0d56190 98 /* The name by which the peer authenticated itself to us. */
samdanbury 6:37b6d0d56190 99 static char peer_authname[MAXNAMELEN];
samdanbury 6:37b6d0d56190 100 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 101
samdanbury 6:37b6d0d56190 102 /* Records which authentication operations haven't completed yet. */
samdanbury 6:37b6d0d56190 103 static int auth_pending[NUM_PPP];
samdanbury 6:37b6d0d56190 104
samdanbury 6:37b6d0d56190 105 /* Set if we have successfully called plogin() */
samdanbury 6:37b6d0d56190 106 static int logged_in;
samdanbury 6:37b6d0d56190 107
samdanbury 6:37b6d0d56190 108 /* Set if we have run the /etc/ppp/auth-up script. */
samdanbury 6:37b6d0d56190 109 static int did_authup; /* @todo, we don't need this in lwip*/
samdanbury 6:37b6d0d56190 110
samdanbury 6:37b6d0d56190 111 /* List of addresses which the peer may use. */
samdanbury 6:37b6d0d56190 112 static struct wordlist *addresses[NUM_PPP];
samdanbury 6:37b6d0d56190 113
samdanbury 6:37b6d0d56190 114 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 115 /* Wordlist giving addresses which the peer may use
samdanbury 6:37b6d0d56190 116 without authenticating itself. */
samdanbury 6:37b6d0d56190 117 static struct wordlist *noauth_addrs;
samdanbury 6:37b6d0d56190 118
samdanbury 6:37b6d0d56190 119 /* Extra options to apply, from the secrets file entry for the peer. */
samdanbury 6:37b6d0d56190 120 static struct wordlist *extra_options;
samdanbury 6:37b6d0d56190 121 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 122
samdanbury 6:37b6d0d56190 123 /* Number of network protocols which we have opened. */
samdanbury 6:37b6d0d56190 124 static int num_np_open;
samdanbury 6:37b6d0d56190 125
samdanbury 6:37b6d0d56190 126 /* Number of network protocols which have come up. */
samdanbury 6:37b6d0d56190 127 static int num_np_up;
samdanbury 6:37b6d0d56190 128
samdanbury 6:37b6d0d56190 129 #if PAP_SUPPORT || CHAP_SUPPORT
samdanbury 6:37b6d0d56190 130 /* Set if we got the contents of passwd[] from the pap-secrets file. */
samdanbury 6:37b6d0d56190 131 static int passwd_from_file;
samdanbury 6:37b6d0d56190 132 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 133
samdanbury 6:37b6d0d56190 134 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 135 /* Set if we require authentication only because we have a default route. */
samdanbury 6:37b6d0d56190 136 static bool default_auth;
samdanbury 6:37b6d0d56190 137
samdanbury 6:37b6d0d56190 138 /* Hook to enable a plugin to control the idle time limit */
samdanbury 6:37b6d0d56190 139 int (*idle_time_hook) __P((struct ppp_idle *)) = NULL;
samdanbury 6:37b6d0d56190 140
samdanbury 6:37b6d0d56190 141 /* Hook for a plugin to say whether we can possibly authenticate any peer */
samdanbury 6:37b6d0d56190 142 int (*pap_check_hook) __P((void)) = NULL;
samdanbury 6:37b6d0d56190 143
samdanbury 6:37b6d0d56190 144 /* Hook for a plugin to check the PAP user and password */
samdanbury 6:37b6d0d56190 145 int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
samdanbury 6:37b6d0d56190 146 struct wordlist **paddrs,
samdanbury 6:37b6d0d56190 147 struct wordlist **popts)) = NULL;
samdanbury 6:37b6d0d56190 148
samdanbury 6:37b6d0d56190 149 /* Hook for a plugin to know about the PAP user logout */
samdanbury 6:37b6d0d56190 150 void (*pap_logout_hook) __P((void)) = NULL;
samdanbury 6:37b6d0d56190 151
samdanbury 6:37b6d0d56190 152 /* Hook for a plugin to get the PAP password for authenticating us */
samdanbury 6:37b6d0d56190 153 int (*pap_passwd_hook) __P((char *user, char *passwd)) = NULL;
samdanbury 6:37b6d0d56190 154
samdanbury 6:37b6d0d56190 155 /*
samdanbury 6:37b6d0d56190 156 * This is used to ensure that we don't start an auth-up/down
samdanbury 6:37b6d0d56190 157 * script while one is already running.
samdanbury 6:37b6d0d56190 158 */
samdanbury 6:37b6d0d56190 159 enum script_state {
samdanbury 6:37b6d0d56190 160 s_down,
samdanbury 6:37b6d0d56190 161 s_up
samdanbury 6:37b6d0d56190 162 };
samdanbury 6:37b6d0d56190 163
samdanbury 6:37b6d0d56190 164 static enum script_state auth_state = s_down;
samdanbury 6:37b6d0d56190 165 static enum script_state auth_script_state = s_down;
samdanbury 6:37b6d0d56190 166 static pid_t auth_script_pid = 0;
samdanbury 6:37b6d0d56190 167
samdanbury 6:37b6d0d56190 168 /*
samdanbury 6:37b6d0d56190 169 * Option variables.
samdanbury 6:37b6d0d56190 170 * lwip: some of these are present in the ppp_settings structure
samdanbury 6:37b6d0d56190 171 */
samdanbury 6:37b6d0d56190 172 bool uselogin = 0; /* Use /etc/passwd for checking PAP */
samdanbury 6:37b6d0d56190 173 bool cryptpap = 0; /* Passwords in pap-secrets are encrypted */
samdanbury 6:37b6d0d56190 174 bool refuse_pap = 0; /* Don't wanna auth. ourselves with PAP */
samdanbury 6:37b6d0d56190 175 bool refuse_chap = 0; /* Don't wanna auth. ourselves with CHAP */
samdanbury 6:37b6d0d56190 176 bool usehostname = 0; /* Use hostname for our_name */
samdanbury 6:37b6d0d56190 177 bool auth_required = 0; /* Always require authentication from peer */
samdanbury 6:37b6d0d56190 178 bool allow_any_ip = 0; /* Allow peer to use any IP address */
samdanbury 6:37b6d0d56190 179 bool explicit_remote = 0; /* User specified explicit remote name */
samdanbury 6:37b6d0d56190 180 char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
samdanbury 6:37b6d0d56190 181
samdanbury 6:37b6d0d56190 182 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 183
samdanbury 6:37b6d0d56190 184 /* Bits in auth_pending[] */
samdanbury 6:37b6d0d56190 185 #define PAP_WITHPEER 1
samdanbury 6:37b6d0d56190 186 #define PAP_PEER 2
samdanbury 6:37b6d0d56190 187 #define CHAP_WITHPEER 4
samdanbury 6:37b6d0d56190 188 #define CHAP_PEER 8
samdanbury 6:37b6d0d56190 189
samdanbury 6:37b6d0d56190 190 /* @todo, move this somewhere */
samdanbury 6:37b6d0d56190 191 /* Used for storing a sequence of words. Usually malloced. */
samdanbury 6:37b6d0d56190 192 struct wordlist {
samdanbury 6:37b6d0d56190 193 struct wordlist *next;
samdanbury 6:37b6d0d56190 194 char word[1];
samdanbury 6:37b6d0d56190 195 };
samdanbury 6:37b6d0d56190 196
samdanbury 6:37b6d0d56190 197
samdanbury 6:37b6d0d56190 198 extern char *crypt (const char *, const char *);
samdanbury 6:37b6d0d56190 199
samdanbury 6:37b6d0d56190 200 /* Prototypes for procedures local to this file. */
samdanbury 6:37b6d0d56190 201
samdanbury 6:37b6d0d56190 202 static void network_phase (int);
samdanbury 6:37b6d0d56190 203 static void check_idle (void *);
samdanbury 6:37b6d0d56190 204 static void connect_time_expired (void *);
samdanbury 6:37b6d0d56190 205 #if 0
samdanbury 6:37b6d0d56190 206 static int plogin (char *, char *, char **, int *);
samdanbury 6:37b6d0d56190 207 #endif
samdanbury 6:37b6d0d56190 208 static void plogout (void);
samdanbury 6:37b6d0d56190 209 static int null_login (int);
samdanbury 6:37b6d0d56190 210 static int get_pap_passwd (int, char *, char *);
samdanbury 6:37b6d0d56190 211 static int have_pap_secret (void);
samdanbury 6:37b6d0d56190 212 static int have_chap_secret (char *, char *, u32_t);
samdanbury 6:37b6d0d56190 213 static int ip_addr_check (u32_t, struct wordlist *);
samdanbury 6:37b6d0d56190 214
samdanbury 6:37b6d0d56190 215 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 216 static int scan_authfile (FILE *, char *, char *, char *,
samdanbury 6:37b6d0d56190 217 struct wordlist **, struct wordlist **,
samdanbury 6:37b6d0d56190 218 char *);
samdanbury 6:37b6d0d56190 219 static void free_wordlist (struct wordlist *);
samdanbury 6:37b6d0d56190 220 static void auth_script (char *);
samdanbury 6:37b6d0d56190 221 static void auth_script_done (void *);
samdanbury 6:37b6d0d56190 222 static void set_allowed_addrs (int unit, struct wordlist *addrs);
samdanbury 6:37b6d0d56190 223 static int some_ip_ok (struct wordlist *);
samdanbury 6:37b6d0d56190 224 static int setupapfile (char **);
samdanbury 6:37b6d0d56190 225 static int privgroup (char **);
samdanbury 6:37b6d0d56190 226 static int set_noauth_addr (char **);
samdanbury 6:37b6d0d56190 227 static void check_access (FILE *, char *);
samdanbury 6:37b6d0d56190 228 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 229
samdanbury 6:37b6d0d56190 230 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 231 /*
samdanbury 6:37b6d0d56190 232 * Authentication-related options.
samdanbury 6:37b6d0d56190 233 */
samdanbury 6:37b6d0d56190 234 option_t auth_options[] = {
samdanbury 6:37b6d0d56190 235 { "require-pap", o_bool, &lcp_wantoptions[0].neg_upap,
samdanbury 6:37b6d0d56190 236 "Require PAP authentication from peer", 1, &auth_required },
samdanbury 6:37b6d0d56190 237 { "+pap", o_bool, &lcp_wantoptions[0].neg_upap,
samdanbury 6:37b6d0d56190 238 "Require PAP authentication from peer", 1, &auth_required },
samdanbury 6:37b6d0d56190 239 { "refuse-pap", o_bool, &refuse_pap,
samdanbury 6:37b6d0d56190 240 "Don't agree to auth to peer with PAP", 1 },
samdanbury 6:37b6d0d56190 241 { "-pap", o_bool, &refuse_pap,
samdanbury 6:37b6d0d56190 242 "Don't allow PAP authentication with peer", 1 },
samdanbury 6:37b6d0d56190 243 { "require-chap", o_bool, &lcp_wantoptions[0].neg_chap,
samdanbury 6:37b6d0d56190 244 "Require CHAP authentication from peer", 1, &auth_required },
samdanbury 6:37b6d0d56190 245 { "+chap", o_bool, &lcp_wantoptions[0].neg_chap,
samdanbury 6:37b6d0d56190 246 "Require CHAP authentication from peer", 1, &auth_required },
samdanbury 6:37b6d0d56190 247 { "refuse-chap", o_bool, &refuse_chap,
samdanbury 6:37b6d0d56190 248 "Don't agree to auth to peer with CHAP", 1 },
samdanbury 6:37b6d0d56190 249 { "-chap", o_bool, &refuse_chap,
samdanbury 6:37b6d0d56190 250 "Don't allow CHAP authentication with peer", 1 },
samdanbury 6:37b6d0d56190 251 { "name", o_string, our_name,
samdanbury 6:37b6d0d56190 252 "Set local name for authentication",
samdanbury 6:37b6d0d56190 253 OPT_PRIV|OPT_STATIC, NULL, MAXNAMELEN },
samdanbury 6:37b6d0d56190 254 { "user", o_string, user,
samdanbury 6:37b6d0d56190 255 "Set name for auth with peer", OPT_STATIC, NULL, MAXNAMELEN },
samdanbury 6:37b6d0d56190 256 { "usehostname", o_bool, &usehostname,
samdanbury 6:37b6d0d56190 257 "Must use hostname for authentication", 1 },
samdanbury 6:37b6d0d56190 258 { "remotename", o_string, remote_name,
samdanbury 6:37b6d0d56190 259 "Set remote name for authentication", OPT_STATIC,
samdanbury 6:37b6d0d56190 260 &explicit_remote, MAXNAMELEN },
samdanbury 6:37b6d0d56190 261 { "auth", o_bool, &auth_required,
samdanbury 6:37b6d0d56190 262 "Require authentication from peer", 1 },
samdanbury 6:37b6d0d56190 263 { "noauth", o_bool, &auth_required,
samdanbury 6:37b6d0d56190 264 "Don't require peer to authenticate", OPT_PRIV, &allow_any_ip },
samdanbury 6:37b6d0d56190 265 { "login", o_bool, &uselogin,
samdanbury 6:37b6d0d56190 266 "Use system password database for PAP", 1 },
samdanbury 6:37b6d0d56190 267 { "papcrypt", o_bool, &cryptpap,
samdanbury 6:37b6d0d56190 268 "PAP passwords are encrypted", 1 },
samdanbury 6:37b6d0d56190 269 { "+ua", o_special, (void *)setupapfile,
samdanbury 6:37b6d0d56190 270 "Get PAP user and password from file" },
samdanbury 6:37b6d0d56190 271 { "password", o_string, passwd,
samdanbury 6:37b6d0d56190 272 "Password for authenticating us to the peer", OPT_STATIC,
samdanbury 6:37b6d0d56190 273 NULL, MAXSECRETLEN },
samdanbury 6:37b6d0d56190 274 { "privgroup", o_special, (void *)privgroup,
samdanbury 6:37b6d0d56190 275 "Allow group members to use privileged options", OPT_PRIV },
samdanbury 6:37b6d0d56190 276 { "allow-ip", o_special, (void *)set_noauth_addr,
samdanbury 6:37b6d0d56190 277 "Set IP address(es) which can be used without authentication",
samdanbury 6:37b6d0d56190 278 OPT_PRIV },
samdanbury 6:37b6d0d56190 279 { NULL }
samdanbury 6:37b6d0d56190 280 };
samdanbury 6:37b6d0d56190 281 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 282 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 283 /*
samdanbury 6:37b6d0d56190 284 * setupapfile - specifies UPAP info for authenticating with peer.
samdanbury 6:37b6d0d56190 285 */
samdanbury 6:37b6d0d56190 286 static int
samdanbury 6:37b6d0d56190 287 setupapfile(char **argv)
samdanbury 6:37b6d0d56190 288 {
samdanbury 6:37b6d0d56190 289 FILE * ufile;
samdanbury 6:37b6d0d56190 290 int l;
samdanbury 6:37b6d0d56190 291
samdanbury 6:37b6d0d56190 292 lcp_allowoptions[0].neg_upap = 1;
samdanbury 6:37b6d0d56190 293
samdanbury 6:37b6d0d56190 294 /* open user info file */
samdanbury 6:37b6d0d56190 295 seteuid(getuid());
samdanbury 6:37b6d0d56190 296 ufile = fopen(*argv, "r");
samdanbury 6:37b6d0d56190 297 seteuid(0);
samdanbury 6:37b6d0d56190 298 if (ufile == NULL) {
samdanbury 6:37b6d0d56190 299 option_error("unable to open user login data file %s", *argv);
samdanbury 6:37b6d0d56190 300 return 0;
samdanbury 6:37b6d0d56190 301 }
samdanbury 6:37b6d0d56190 302 check_access(ufile, *argv);
samdanbury 6:37b6d0d56190 303
samdanbury 6:37b6d0d56190 304 /* get username */
samdanbury 6:37b6d0d56190 305 if (fgets(user, MAXNAMELEN - 1, ufile) == NULL
samdanbury 6:37b6d0d56190 306 || fgets(passwd, MAXSECRETLEN - 1, ufile) == NULL){
samdanbury 6:37b6d0d56190 307 option_error("unable to read user login data file %s", *argv);
samdanbury 6:37b6d0d56190 308 return 0;
samdanbury 6:37b6d0d56190 309 }
samdanbury 6:37b6d0d56190 310 fclose(ufile);
samdanbury 6:37b6d0d56190 311
samdanbury 6:37b6d0d56190 312 /* get rid of newlines */
samdanbury 6:37b6d0d56190 313 l = strlen(user);
samdanbury 6:37b6d0d56190 314 if (l > 0 && user[l-1] == '\n')
samdanbury 6:37b6d0d56190 315 user[l-1] = 0;
samdanbury 6:37b6d0d56190 316 l = strlen(passwd);
samdanbury 6:37b6d0d56190 317 if (l > 0 && passwd[l-1] == '\n')
samdanbury 6:37b6d0d56190 318 passwd[l-1] = 0;
samdanbury 6:37b6d0d56190 319
samdanbury 6:37b6d0d56190 320 return (1);
samdanbury 6:37b6d0d56190 321 }
samdanbury 6:37b6d0d56190 322 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 323
samdanbury 6:37b6d0d56190 324 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 325 /*
samdanbury 6:37b6d0d56190 326 * privgroup - allow members of the group to have privileged access.
samdanbury 6:37b6d0d56190 327 */
samdanbury 6:37b6d0d56190 328 static int
samdanbury 6:37b6d0d56190 329 privgroup(char **argv)
samdanbury 6:37b6d0d56190 330 {
samdanbury 6:37b6d0d56190 331 struct group *g;
samdanbury 6:37b6d0d56190 332 int i;
samdanbury 6:37b6d0d56190 333
samdanbury 6:37b6d0d56190 334 g = getgrnam(*argv);
samdanbury 6:37b6d0d56190 335 if (g == 0) {
samdanbury 6:37b6d0d56190 336 option_error("group %s is unknown", *argv);
samdanbury 6:37b6d0d56190 337 return 0;
samdanbury 6:37b6d0d56190 338 }
samdanbury 6:37b6d0d56190 339 for (i = 0; i < ngroups; ++i) {
samdanbury 6:37b6d0d56190 340 if (groups[i] == g->gr_gid) {
samdanbury 6:37b6d0d56190 341 privileged = 1;
samdanbury 6:37b6d0d56190 342 break;
samdanbury 6:37b6d0d56190 343 }
samdanbury 6:37b6d0d56190 344 }
samdanbury 6:37b6d0d56190 345 return 1;
samdanbury 6:37b6d0d56190 346 }
samdanbury 6:37b6d0d56190 347 #endif
samdanbury 6:37b6d0d56190 348
samdanbury 6:37b6d0d56190 349 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 350 /*
samdanbury 6:37b6d0d56190 351 * set_noauth_addr - set address(es) that can be used without authentication.
samdanbury 6:37b6d0d56190 352 * Equivalent to specifying an entry like `"" * "" addr' in pap-secrets.
samdanbury 6:37b6d0d56190 353 */
samdanbury 6:37b6d0d56190 354 static int
samdanbury 6:37b6d0d56190 355 set_noauth_addr(char **argv)
samdanbury 6:37b6d0d56190 356 {
samdanbury 6:37b6d0d56190 357 char *addr = *argv;
samdanbury 6:37b6d0d56190 358 int l = strlen(addr);
samdanbury 6:37b6d0d56190 359 struct wordlist *wp;
samdanbury 6:37b6d0d56190 360
samdanbury 6:37b6d0d56190 361 wp = (struct wordlist *) malloc(sizeof(struct wordlist) + l + 1);
samdanbury 6:37b6d0d56190 362 if (wp == NULL)
samdanbury 6:37b6d0d56190 363 novm("allow-ip argument");
samdanbury 6:37b6d0d56190 364 wp->word = (char *) (wp + 1);
samdanbury 6:37b6d0d56190 365 wp->next = noauth_addrs;
samdanbury 6:37b6d0d56190 366 BCOPY(addr, wp->word, l);
samdanbury 6:37b6d0d56190 367 noauth_addrs = wp;
samdanbury 6:37b6d0d56190 368 return 1;
samdanbury 6:37b6d0d56190 369 }
samdanbury 6:37b6d0d56190 370 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 371
samdanbury 6:37b6d0d56190 372 /*
samdanbury 6:37b6d0d56190 373 * An Open on LCP has requested a change from Dead to Establish phase.
samdanbury 6:37b6d0d56190 374 * Do what's necessary to bring the physical layer up.
samdanbury 6:37b6d0d56190 375 */
samdanbury 6:37b6d0d56190 376 void
samdanbury 6:37b6d0d56190 377 link_required(int unit)
samdanbury 6:37b6d0d56190 378 {
samdanbury 6:37b6d0d56190 379 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 380
samdanbury 6:37b6d0d56190 381 AUTHDEBUG(LOG_INFO, ("link_required: %d\n", unit));
samdanbury 6:37b6d0d56190 382 }
samdanbury 6:37b6d0d56190 383
samdanbury 6:37b6d0d56190 384 /*
samdanbury 6:37b6d0d56190 385 * LCP has terminated the link; go to the Dead phase and take the
samdanbury 6:37b6d0d56190 386 * physical layer down.
samdanbury 6:37b6d0d56190 387 */
samdanbury 6:37b6d0d56190 388 void
samdanbury 6:37b6d0d56190 389 link_terminated(int unit)
samdanbury 6:37b6d0d56190 390 {
samdanbury 6:37b6d0d56190 391 AUTHDEBUG(LOG_INFO, ("link_terminated: %d\n", unit));
samdanbury 6:37b6d0d56190 392 if (lcp_phase[unit] == PHASE_DEAD) {
samdanbury 6:37b6d0d56190 393 return;
samdanbury 6:37b6d0d56190 394 }
samdanbury 6:37b6d0d56190 395 if (logged_in) {
samdanbury 6:37b6d0d56190 396 plogout();
samdanbury 6:37b6d0d56190 397 }
samdanbury 6:37b6d0d56190 398 lcp_phase[unit] = PHASE_DEAD;
samdanbury 6:37b6d0d56190 399 AUTHDEBUG(LOG_NOTICE, ("Connection terminated.\n"));
samdanbury 6:37b6d0d56190 400 pppLinkTerminated(unit);
samdanbury 6:37b6d0d56190 401 }
samdanbury 6:37b6d0d56190 402
samdanbury 6:37b6d0d56190 403 /*
samdanbury 6:37b6d0d56190 404 * LCP has gone down; it will either die or try to re-establish.
samdanbury 6:37b6d0d56190 405 */
samdanbury 6:37b6d0d56190 406 void
samdanbury 6:37b6d0d56190 407 link_down(int unit)
samdanbury 6:37b6d0d56190 408 {
samdanbury 6:37b6d0d56190 409 int i;
samdanbury 6:37b6d0d56190 410 struct protent *protp;
samdanbury 6:37b6d0d56190 411
samdanbury 6:37b6d0d56190 412 AUTHDEBUG(LOG_INFO, ("link_down: %d\n", unit));
samdanbury 6:37b6d0d56190 413
samdanbury 6:37b6d0d56190 414 if (did_authup) {
samdanbury 6:37b6d0d56190 415 /* XXX Do link down processing. */
samdanbury 6:37b6d0d56190 416 did_authup = 0;
samdanbury 6:37b6d0d56190 417 }
samdanbury 6:37b6d0d56190 418 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
samdanbury 6:37b6d0d56190 419 if (!protp->enabled_flag) {
samdanbury 6:37b6d0d56190 420 continue;
samdanbury 6:37b6d0d56190 421 }
samdanbury 6:37b6d0d56190 422 if (protp->protocol != PPP_LCP && protp->lowerdown != NULL) {
samdanbury 6:37b6d0d56190 423 (*protp->lowerdown)(unit);
samdanbury 6:37b6d0d56190 424 }
samdanbury 6:37b6d0d56190 425 if (protp->protocol < 0xC000 && protp->close != NULL) {
samdanbury 6:37b6d0d56190 426 (*protp->close)(unit, "LCP down");
samdanbury 6:37b6d0d56190 427 }
samdanbury 6:37b6d0d56190 428 }
samdanbury 6:37b6d0d56190 429 num_np_open = 0; /* number of network protocols we have opened */
samdanbury 6:37b6d0d56190 430 num_np_up = 0; /* Number of network protocols which have come up */
samdanbury 6:37b6d0d56190 431
samdanbury 6:37b6d0d56190 432 if (lcp_phase[unit] != PHASE_DEAD) {
samdanbury 6:37b6d0d56190 433 lcp_phase[unit] = PHASE_TERMINATE;
samdanbury 6:37b6d0d56190 434 }
samdanbury 6:37b6d0d56190 435 pppLinkDown(unit);
samdanbury 6:37b6d0d56190 436 }
samdanbury 6:37b6d0d56190 437
samdanbury 6:37b6d0d56190 438 /*
samdanbury 6:37b6d0d56190 439 * The link is established.
samdanbury 6:37b6d0d56190 440 * Proceed to the Dead, Authenticate or Network phase as appropriate.
samdanbury 6:37b6d0d56190 441 */
samdanbury 6:37b6d0d56190 442 void
samdanbury 6:37b6d0d56190 443 link_established(int unit)
samdanbury 6:37b6d0d56190 444 {
samdanbury 6:37b6d0d56190 445 int auth;
samdanbury 6:37b6d0d56190 446 int i;
samdanbury 6:37b6d0d56190 447 struct protent *protp;
samdanbury 6:37b6d0d56190 448 lcp_options *wo = &lcp_wantoptions[unit];
samdanbury 6:37b6d0d56190 449 lcp_options *go = &lcp_gotoptions[unit];
samdanbury 6:37b6d0d56190 450 #if PAP_SUPPORT || CHAP_SUPPORT
samdanbury 6:37b6d0d56190 451 lcp_options *ho = &lcp_hisoptions[unit];
samdanbury 6:37b6d0d56190 452 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 453
samdanbury 6:37b6d0d56190 454 AUTHDEBUG(LOG_INFO, ("link_established: unit %d; Lowering up all protocols...\n", unit));
samdanbury 6:37b6d0d56190 455 /*
samdanbury 6:37b6d0d56190 456 * Tell higher-level protocols that LCP is up.
samdanbury 6:37b6d0d56190 457 */
samdanbury 6:37b6d0d56190 458 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
samdanbury 6:37b6d0d56190 459 if (protp->protocol != PPP_LCP && protp->enabled_flag && protp->lowerup != NULL) {
samdanbury 6:37b6d0d56190 460 (*protp->lowerup)(unit);
samdanbury 6:37b6d0d56190 461 }
samdanbury 6:37b6d0d56190 462 }
samdanbury 6:37b6d0d56190 463 if (ppp_settings.auth_required && !(go->neg_chap || go->neg_upap)) {
samdanbury 6:37b6d0d56190 464 /*
samdanbury 6:37b6d0d56190 465 * We wanted the peer to authenticate itself, and it refused:
samdanbury 6:37b6d0d56190 466 * treat it as though it authenticated with PAP using a username
samdanbury 6:37b6d0d56190 467 * of "" and a password of "". If that's not OK, boot it out.
samdanbury 6:37b6d0d56190 468 */
samdanbury 6:37b6d0d56190 469 if (!wo->neg_upap || !null_login(unit)) {
samdanbury 6:37b6d0d56190 470 AUTHDEBUG(LOG_WARNING, ("peer refused to authenticate\n"));
samdanbury 6:37b6d0d56190 471 lcp_close(unit, "peer refused to authenticate");
samdanbury 6:37b6d0d56190 472 return;
samdanbury 6:37b6d0d56190 473 }
samdanbury 6:37b6d0d56190 474 }
samdanbury 6:37b6d0d56190 475
samdanbury 6:37b6d0d56190 476 lcp_phase[unit] = PHASE_AUTHENTICATE;
samdanbury 6:37b6d0d56190 477 auth = 0;
samdanbury 6:37b6d0d56190 478 #if CHAP_SUPPORT
samdanbury 6:37b6d0d56190 479 if (go->neg_chap) {
samdanbury 6:37b6d0d56190 480 ChapAuthPeer(unit, ppp_settings.our_name, go->chap_mdtype);
samdanbury 6:37b6d0d56190 481 auth |= CHAP_PEER;
samdanbury 6:37b6d0d56190 482 }
samdanbury 6:37b6d0d56190 483 #endif /* CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 484 #if PAP_SUPPORT && CHAP_SUPPORT
samdanbury 6:37b6d0d56190 485 else
samdanbury 6:37b6d0d56190 486 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 487 #if PAP_SUPPORT
samdanbury 6:37b6d0d56190 488 if (go->neg_upap) {
samdanbury 6:37b6d0d56190 489 upap_authpeer(unit);
samdanbury 6:37b6d0d56190 490 auth |= PAP_PEER;
samdanbury 6:37b6d0d56190 491 }
samdanbury 6:37b6d0d56190 492 #endif /* PAP_SUPPORT */
samdanbury 6:37b6d0d56190 493 #if CHAP_SUPPORT
samdanbury 6:37b6d0d56190 494 if (ho->neg_chap) {
samdanbury 6:37b6d0d56190 495 ChapAuthWithPeer(unit, ppp_settings.user, ho->chap_mdtype);
samdanbury 6:37b6d0d56190 496 auth |= CHAP_WITHPEER;
samdanbury 6:37b6d0d56190 497 }
samdanbury 6:37b6d0d56190 498 #endif /* CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 499 #if PAP_SUPPORT && CHAP_SUPPORT
samdanbury 6:37b6d0d56190 500 else
samdanbury 6:37b6d0d56190 501 #endif /* PAP_SUPPORT && CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 502 #if PAP_SUPPORT
samdanbury 6:37b6d0d56190 503 if (ho->neg_upap) {
samdanbury 6:37b6d0d56190 504 if (ppp_settings.passwd[0] == 0) {
samdanbury 6:37b6d0d56190 505 passwd_from_file = 1;
samdanbury 6:37b6d0d56190 506 if (!get_pap_passwd(unit, ppp_settings.user, ppp_settings.passwd)) {
samdanbury 6:37b6d0d56190 507 AUTHDEBUG(LOG_ERR, ("No secret found for PAP login\n"));
samdanbury 6:37b6d0d56190 508 }
samdanbury 6:37b6d0d56190 509 }
samdanbury 6:37b6d0d56190 510 upap_authwithpeer(unit, ppp_settings.user, ppp_settings.passwd);
samdanbury 6:37b6d0d56190 511 auth |= PAP_WITHPEER;
samdanbury 6:37b6d0d56190 512 }
samdanbury 6:37b6d0d56190 513 #endif /* PAP_SUPPORT */
samdanbury 6:37b6d0d56190 514 auth_pending[unit] = auth;
samdanbury 6:37b6d0d56190 515
samdanbury 6:37b6d0d56190 516 if (!auth) {
samdanbury 6:37b6d0d56190 517 network_phase(unit);
samdanbury 6:37b6d0d56190 518 }
samdanbury 6:37b6d0d56190 519 }
samdanbury 6:37b6d0d56190 520
samdanbury 6:37b6d0d56190 521 /*
samdanbury 6:37b6d0d56190 522 * Proceed to the network phase.
samdanbury 6:37b6d0d56190 523 */
samdanbury 6:37b6d0d56190 524 static void
samdanbury 6:37b6d0d56190 525 network_phase(int unit)
samdanbury 6:37b6d0d56190 526 {
samdanbury 6:37b6d0d56190 527 int i;
samdanbury 6:37b6d0d56190 528 struct protent *protp;
samdanbury 6:37b6d0d56190 529 lcp_options *go = &lcp_gotoptions[unit];
samdanbury 6:37b6d0d56190 530
samdanbury 6:37b6d0d56190 531 /*
samdanbury 6:37b6d0d56190 532 * If the peer had to authenticate, run the auth-up script now.
samdanbury 6:37b6d0d56190 533 */
samdanbury 6:37b6d0d56190 534 if ((go->neg_chap || go->neg_upap) && !did_authup) {
samdanbury 6:37b6d0d56190 535 /* XXX Do setup for peer authentication. */
samdanbury 6:37b6d0d56190 536 did_authup = 1;
samdanbury 6:37b6d0d56190 537 }
samdanbury 6:37b6d0d56190 538
samdanbury 6:37b6d0d56190 539 #if CBCP_SUPPORT
samdanbury 6:37b6d0d56190 540 /*
samdanbury 6:37b6d0d56190 541 * If we negotiated callback, do it now.
samdanbury 6:37b6d0d56190 542 */
samdanbury 6:37b6d0d56190 543 if (go->neg_cbcp) {
samdanbury 6:37b6d0d56190 544 lcp_phase[unit] = PHASE_CALLBACK;
samdanbury 6:37b6d0d56190 545 (*cbcp_protent.open)(unit);
samdanbury 6:37b6d0d56190 546 return;
samdanbury 6:37b6d0d56190 547 }
samdanbury 6:37b6d0d56190 548 #endif /* CBCP_SUPPORT */
samdanbury 6:37b6d0d56190 549
samdanbury 6:37b6d0d56190 550 lcp_phase[unit] = PHASE_NETWORK;
samdanbury 6:37b6d0d56190 551 for (i = 0; (protp = ppp_protocols[i]) != NULL; ++i) {
samdanbury 6:37b6d0d56190 552 if (protp->protocol < 0xC000 && protp->enabled_flag && protp->open != NULL) {
samdanbury 6:37b6d0d56190 553 (*protp->open)(unit);
samdanbury 6:37b6d0d56190 554 if (protp->protocol != PPP_CCP) {
samdanbury 6:37b6d0d56190 555 ++num_np_open;
samdanbury 6:37b6d0d56190 556 }
samdanbury 6:37b6d0d56190 557 }
samdanbury 6:37b6d0d56190 558 }
samdanbury 6:37b6d0d56190 559
samdanbury 6:37b6d0d56190 560 if (num_np_open == 0) {
samdanbury 6:37b6d0d56190 561 /* nothing to do */
samdanbury 6:37b6d0d56190 562 lcp_close(0, "No network protocols running");
samdanbury 6:37b6d0d56190 563 }
samdanbury 6:37b6d0d56190 564 }
samdanbury 6:37b6d0d56190 565 /* @todo: add void start_networks(void) here (pppd 2.3.11) */
samdanbury 6:37b6d0d56190 566
samdanbury 6:37b6d0d56190 567 /*
samdanbury 6:37b6d0d56190 568 * The peer has failed to authenticate himself using `protocol'.
samdanbury 6:37b6d0d56190 569 */
samdanbury 6:37b6d0d56190 570 void
samdanbury 6:37b6d0d56190 571 auth_peer_fail(int unit, u16_t protocol)
samdanbury 6:37b6d0d56190 572 {
samdanbury 6:37b6d0d56190 573 LWIP_UNUSED_ARG(protocol);
samdanbury 6:37b6d0d56190 574
samdanbury 6:37b6d0d56190 575 AUTHDEBUG(LOG_INFO, ("auth_peer_fail: %d proto=%X\n", unit, protocol));
samdanbury 6:37b6d0d56190 576 /*
samdanbury 6:37b6d0d56190 577 * Authentication failure: take the link down
samdanbury 6:37b6d0d56190 578 */
samdanbury 6:37b6d0d56190 579 lcp_close(unit, "Authentication failed");
samdanbury 6:37b6d0d56190 580 }
samdanbury 6:37b6d0d56190 581
samdanbury 6:37b6d0d56190 582
samdanbury 6:37b6d0d56190 583 #if PAP_SUPPORT || CHAP_SUPPORT
samdanbury 6:37b6d0d56190 584 /*
samdanbury 6:37b6d0d56190 585 * The peer has been successfully authenticated using `protocol'.
samdanbury 6:37b6d0d56190 586 */
samdanbury 6:37b6d0d56190 587 void
samdanbury 6:37b6d0d56190 588 auth_peer_success(int unit, u16_t protocol, char *name, int namelen)
samdanbury 6:37b6d0d56190 589 {
samdanbury 6:37b6d0d56190 590 int pbit;
samdanbury 6:37b6d0d56190 591
samdanbury 6:37b6d0d56190 592 AUTHDEBUG(LOG_INFO, ("auth_peer_success: %d proto=%X\n", unit, protocol));
samdanbury 6:37b6d0d56190 593 switch (protocol) {
samdanbury 6:37b6d0d56190 594 case PPP_CHAP:
samdanbury 6:37b6d0d56190 595 pbit = CHAP_PEER;
samdanbury 6:37b6d0d56190 596 break;
samdanbury 6:37b6d0d56190 597 case PPP_PAP:
samdanbury 6:37b6d0d56190 598 pbit = PAP_PEER;
samdanbury 6:37b6d0d56190 599 break;
samdanbury 6:37b6d0d56190 600 default:
samdanbury 6:37b6d0d56190 601 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
samdanbury 6:37b6d0d56190 602 return;
samdanbury 6:37b6d0d56190 603 }
samdanbury 6:37b6d0d56190 604
samdanbury 6:37b6d0d56190 605 /*
samdanbury 6:37b6d0d56190 606 * Save the authenticated name of the peer for later.
samdanbury 6:37b6d0d56190 607 */
samdanbury 6:37b6d0d56190 608 if (namelen > (int)sizeof(peer_authname) - 1) {
samdanbury 6:37b6d0d56190 609 namelen = sizeof(peer_authname) - 1;
samdanbury 6:37b6d0d56190 610 }
samdanbury 6:37b6d0d56190 611 BCOPY(name, peer_authname, namelen);
samdanbury 6:37b6d0d56190 612 peer_authname[namelen] = 0;
samdanbury 6:37b6d0d56190 613
samdanbury 6:37b6d0d56190 614 /*
samdanbury 6:37b6d0d56190 615 * If there is no more authentication still to be done,
samdanbury 6:37b6d0d56190 616 * proceed to the network (or callback) phase.
samdanbury 6:37b6d0d56190 617 */
samdanbury 6:37b6d0d56190 618 if ((auth_pending[unit] &= ~pbit) == 0) {
samdanbury 6:37b6d0d56190 619 network_phase(unit);
samdanbury 6:37b6d0d56190 620 }
samdanbury 6:37b6d0d56190 621 }
samdanbury 6:37b6d0d56190 622
samdanbury 6:37b6d0d56190 623 /*
samdanbury 6:37b6d0d56190 624 * We have failed to authenticate ourselves to the peer using `protocol'.
samdanbury 6:37b6d0d56190 625 */
samdanbury 6:37b6d0d56190 626 void
samdanbury 6:37b6d0d56190 627 auth_withpeer_fail(int unit, u16_t protocol)
samdanbury 6:37b6d0d56190 628 {
samdanbury 6:37b6d0d56190 629 int errCode = PPPERR_AUTHFAIL;
samdanbury 6:37b6d0d56190 630
samdanbury 6:37b6d0d56190 631 LWIP_UNUSED_ARG(protocol);
samdanbury 6:37b6d0d56190 632
samdanbury 6:37b6d0d56190 633 AUTHDEBUG(LOG_INFO, ("auth_withpeer_fail: %d proto=%X\n", unit, protocol));
samdanbury 6:37b6d0d56190 634 if (passwd_from_file) {
samdanbury 6:37b6d0d56190 635 BZERO(ppp_settings.passwd, MAXSECRETLEN);
samdanbury 6:37b6d0d56190 636 }
samdanbury 6:37b6d0d56190 637
samdanbury 6:37b6d0d56190 638 /*
samdanbury 6:37b6d0d56190 639 * We've failed to authenticate ourselves to our peer.
samdanbury 6:37b6d0d56190 640 * He'll probably take the link down, and there's not much
samdanbury 6:37b6d0d56190 641 * we can do except wait for that.
samdanbury 6:37b6d0d56190 642 */
samdanbury 6:37b6d0d56190 643 pppIOCtl(unit, PPPCTLS_ERRCODE, &errCode);
samdanbury 6:37b6d0d56190 644 lcp_close(unit, "Failed to authenticate ourselves to peer");
samdanbury 6:37b6d0d56190 645 }
samdanbury 6:37b6d0d56190 646
samdanbury 6:37b6d0d56190 647 /*
samdanbury 6:37b6d0d56190 648 * We have successfully authenticated ourselves with the peer using `protocol'.
samdanbury 6:37b6d0d56190 649 */
samdanbury 6:37b6d0d56190 650 void
samdanbury 6:37b6d0d56190 651 auth_withpeer_success(int unit, u16_t protocol)
samdanbury 6:37b6d0d56190 652 {
samdanbury 6:37b6d0d56190 653 int pbit;
samdanbury 6:37b6d0d56190 654
samdanbury 6:37b6d0d56190 655 AUTHDEBUG(LOG_INFO, ("auth_withpeer_success: %d proto=%X\n", unit, protocol));
samdanbury 6:37b6d0d56190 656 switch (protocol) {
samdanbury 6:37b6d0d56190 657 case PPP_CHAP:
samdanbury 6:37b6d0d56190 658 pbit = CHAP_WITHPEER;
samdanbury 6:37b6d0d56190 659 break;
samdanbury 6:37b6d0d56190 660 case PPP_PAP:
samdanbury 6:37b6d0d56190 661 if (passwd_from_file) {
samdanbury 6:37b6d0d56190 662 BZERO(ppp_settings.passwd, MAXSECRETLEN);
samdanbury 6:37b6d0d56190 663 }
samdanbury 6:37b6d0d56190 664 pbit = PAP_WITHPEER;
samdanbury 6:37b6d0d56190 665 break;
samdanbury 6:37b6d0d56190 666 default:
samdanbury 6:37b6d0d56190 667 AUTHDEBUG(LOG_WARNING, ("auth_peer_success: unknown protocol %x\n", protocol));
samdanbury 6:37b6d0d56190 668 pbit = 0;
samdanbury 6:37b6d0d56190 669 }
samdanbury 6:37b6d0d56190 670
samdanbury 6:37b6d0d56190 671 /*
samdanbury 6:37b6d0d56190 672 * If there is no more authentication still being done,
samdanbury 6:37b6d0d56190 673 * proceed to the network (or callback) phase.
samdanbury 6:37b6d0d56190 674 */
samdanbury 6:37b6d0d56190 675 if ((auth_pending[unit] &= ~pbit) == 0) {
samdanbury 6:37b6d0d56190 676 network_phase(unit);
samdanbury 6:37b6d0d56190 677 }
samdanbury 6:37b6d0d56190 678 }
samdanbury 6:37b6d0d56190 679 #endif /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 680
samdanbury 6:37b6d0d56190 681
samdanbury 6:37b6d0d56190 682 /*
samdanbury 6:37b6d0d56190 683 * np_up - a network protocol has come up.
samdanbury 6:37b6d0d56190 684 */
samdanbury 6:37b6d0d56190 685 void
samdanbury 6:37b6d0d56190 686 np_up(int unit, u16_t proto)
samdanbury 6:37b6d0d56190 687 {
samdanbury 6:37b6d0d56190 688 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 689 LWIP_UNUSED_ARG(proto);
samdanbury 6:37b6d0d56190 690
samdanbury 6:37b6d0d56190 691 AUTHDEBUG(LOG_INFO, ("np_up: %d proto=%X\n", unit, proto));
samdanbury 6:37b6d0d56190 692 if (num_np_up == 0) {
samdanbury 6:37b6d0d56190 693 AUTHDEBUG(LOG_INFO, ("np_up: maxconnect=%d idle_time_limit=%d\n",ppp_settings.maxconnect,ppp_settings.idle_time_limit));
samdanbury 6:37b6d0d56190 694 /*
samdanbury 6:37b6d0d56190 695 * At this point we consider that the link has come up successfully.
samdanbury 6:37b6d0d56190 696 */
samdanbury 6:37b6d0d56190 697 if (ppp_settings.idle_time_limit > 0) {
samdanbury 6:37b6d0d56190 698 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit);
samdanbury 6:37b6d0d56190 699 }
samdanbury 6:37b6d0d56190 700
samdanbury 6:37b6d0d56190 701 /*
samdanbury 6:37b6d0d56190 702 * Set a timeout to close the connection once the maximum
samdanbury 6:37b6d0d56190 703 * connect time has expired.
samdanbury 6:37b6d0d56190 704 */
samdanbury 6:37b6d0d56190 705 if (ppp_settings.maxconnect > 0) {
samdanbury 6:37b6d0d56190 706 TIMEOUT(connect_time_expired, 0, ppp_settings.maxconnect);
samdanbury 6:37b6d0d56190 707 }
samdanbury 6:37b6d0d56190 708 }
samdanbury 6:37b6d0d56190 709 ++num_np_up;
samdanbury 6:37b6d0d56190 710 }
samdanbury 6:37b6d0d56190 711
samdanbury 6:37b6d0d56190 712 /*
samdanbury 6:37b6d0d56190 713 * np_down - a network protocol has gone down.
samdanbury 6:37b6d0d56190 714 */
samdanbury 6:37b6d0d56190 715 void
samdanbury 6:37b6d0d56190 716 np_down(int unit, u16_t proto)
samdanbury 6:37b6d0d56190 717 {
samdanbury 6:37b6d0d56190 718 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 719 LWIP_UNUSED_ARG(proto);
samdanbury 6:37b6d0d56190 720
samdanbury 6:37b6d0d56190 721 AUTHDEBUG(LOG_INFO, ("np_down: %d proto=%X\n", unit, proto));
samdanbury 6:37b6d0d56190 722 if (--num_np_up == 0 && ppp_settings.idle_time_limit > 0) {
samdanbury 6:37b6d0d56190 723 UNTIMEOUT(check_idle, NULL);
samdanbury 6:37b6d0d56190 724 }
samdanbury 6:37b6d0d56190 725 }
samdanbury 6:37b6d0d56190 726
samdanbury 6:37b6d0d56190 727 /*
samdanbury 6:37b6d0d56190 728 * np_finished - a network protocol has finished using the link.
samdanbury 6:37b6d0d56190 729 */
samdanbury 6:37b6d0d56190 730 void
samdanbury 6:37b6d0d56190 731 np_finished(int unit, u16_t proto)
samdanbury 6:37b6d0d56190 732 {
samdanbury 6:37b6d0d56190 733 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 734 LWIP_UNUSED_ARG(proto);
samdanbury 6:37b6d0d56190 735
samdanbury 6:37b6d0d56190 736 AUTHDEBUG(LOG_INFO, ("np_finished: %d proto=%X\n", unit, proto));
samdanbury 6:37b6d0d56190 737 if (--num_np_open <= 0) {
samdanbury 6:37b6d0d56190 738 /* no further use for the link: shut up shop. */
samdanbury 6:37b6d0d56190 739 lcp_close(0, "No network protocols running");
samdanbury 6:37b6d0d56190 740 }
samdanbury 6:37b6d0d56190 741 }
samdanbury 6:37b6d0d56190 742
samdanbury 6:37b6d0d56190 743 /*
samdanbury 6:37b6d0d56190 744 * check_idle - check whether the link has been idle for long
samdanbury 6:37b6d0d56190 745 * enough that we can shut it down.
samdanbury 6:37b6d0d56190 746 */
samdanbury 6:37b6d0d56190 747 static void
samdanbury 6:37b6d0d56190 748 check_idle(void *arg)
samdanbury 6:37b6d0d56190 749 {
samdanbury 6:37b6d0d56190 750 struct ppp_idle idle;
samdanbury 6:37b6d0d56190 751 u_short itime;
samdanbury 6:37b6d0d56190 752
samdanbury 6:37b6d0d56190 753 LWIP_UNUSED_ARG(arg);
samdanbury 6:37b6d0d56190 754 if (!get_idle_time(0, &idle)) {
samdanbury 6:37b6d0d56190 755 return;
samdanbury 6:37b6d0d56190 756 }
samdanbury 6:37b6d0d56190 757 itime = LWIP_MIN(idle.xmit_idle, idle.recv_idle);
samdanbury 6:37b6d0d56190 758 if (itime >= ppp_settings.idle_time_limit) {
samdanbury 6:37b6d0d56190 759 /* link is idle: shut it down. */
samdanbury 6:37b6d0d56190 760 AUTHDEBUG(LOG_INFO, ("Terminating connection due to lack of activity.\n"));
samdanbury 6:37b6d0d56190 761 lcp_close(0, "Link inactive");
samdanbury 6:37b6d0d56190 762 } else {
samdanbury 6:37b6d0d56190 763 TIMEOUT(check_idle, NULL, ppp_settings.idle_time_limit - itime);
samdanbury 6:37b6d0d56190 764 }
samdanbury 6:37b6d0d56190 765 }
samdanbury 6:37b6d0d56190 766
samdanbury 6:37b6d0d56190 767 /*
samdanbury 6:37b6d0d56190 768 * connect_time_expired - log a message and close the connection.
samdanbury 6:37b6d0d56190 769 */
samdanbury 6:37b6d0d56190 770 static void
samdanbury 6:37b6d0d56190 771 connect_time_expired(void *arg)
samdanbury 6:37b6d0d56190 772 {
samdanbury 6:37b6d0d56190 773 LWIP_UNUSED_ARG(arg);
samdanbury 6:37b6d0d56190 774
samdanbury 6:37b6d0d56190 775 AUTHDEBUG(LOG_INFO, ("Connect time expired\n"));
samdanbury 6:37b6d0d56190 776 lcp_close(0, "Connect time expired"); /* Close connection */
samdanbury 6:37b6d0d56190 777 }
samdanbury 6:37b6d0d56190 778
samdanbury 6:37b6d0d56190 779 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 780 /*
samdanbury 6:37b6d0d56190 781 * auth_check_options - called to check authentication options.
samdanbury 6:37b6d0d56190 782 */
samdanbury 6:37b6d0d56190 783 void
samdanbury 6:37b6d0d56190 784 auth_check_options(void)
samdanbury 6:37b6d0d56190 785 {
samdanbury 6:37b6d0d56190 786 lcp_options *wo = &lcp_wantoptions[0];
samdanbury 6:37b6d0d56190 787 int can_auth;
samdanbury 6:37b6d0d56190 788 ipcp_options *ipwo = &ipcp_wantoptions[0];
samdanbury 6:37b6d0d56190 789 u32_t remote;
samdanbury 6:37b6d0d56190 790
samdanbury 6:37b6d0d56190 791 /* Default our_name to hostname, and user to our_name */
samdanbury 6:37b6d0d56190 792 if (ppp_settings.our_name[0] == 0 || ppp_settings.usehostname) {
samdanbury 6:37b6d0d56190 793 strcpy(ppp_settings.our_name, ppp_settings.hostname);
samdanbury 6:37b6d0d56190 794 }
samdanbury 6:37b6d0d56190 795
samdanbury 6:37b6d0d56190 796 if (ppp_settings.user[0] == 0) {
samdanbury 6:37b6d0d56190 797 strcpy(ppp_settings.user, ppp_settings.our_name);
samdanbury 6:37b6d0d56190 798 }
samdanbury 6:37b6d0d56190 799
samdanbury 6:37b6d0d56190 800 /* If authentication is required, ask peer for CHAP or PAP. */
samdanbury 6:37b6d0d56190 801 if (ppp_settings.auth_required && !wo->neg_chap && !wo->neg_upap) {
samdanbury 6:37b6d0d56190 802 wo->neg_chap = 1;
samdanbury 6:37b6d0d56190 803 wo->neg_upap = 1;
samdanbury 6:37b6d0d56190 804 }
samdanbury 6:37b6d0d56190 805
samdanbury 6:37b6d0d56190 806 /*
samdanbury 6:37b6d0d56190 807 * Check whether we have appropriate secrets to use
samdanbury 6:37b6d0d56190 808 * to authenticate the peer.
samdanbury 6:37b6d0d56190 809 */
samdanbury 6:37b6d0d56190 810 can_auth = wo->neg_upap && have_pap_secret();
samdanbury 6:37b6d0d56190 811 if (!can_auth && wo->neg_chap) {
samdanbury 6:37b6d0d56190 812 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
samdanbury 6:37b6d0d56190 813 can_auth = have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote);
samdanbury 6:37b6d0d56190 814 }
samdanbury 6:37b6d0d56190 815
samdanbury 6:37b6d0d56190 816 if (ppp_settings.auth_required && !can_auth) {
samdanbury 6:37b6d0d56190 817 ppp_panic("No auth secret");
samdanbury 6:37b6d0d56190 818 }
samdanbury 6:37b6d0d56190 819 }
samdanbury 6:37b6d0d56190 820 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 821
samdanbury 6:37b6d0d56190 822 /*
samdanbury 6:37b6d0d56190 823 * auth_reset - called when LCP is starting negotiations to recheck
samdanbury 6:37b6d0d56190 824 * authentication options, i.e. whether we have appropriate secrets
samdanbury 6:37b6d0d56190 825 * to use for authenticating ourselves and/or the peer.
samdanbury 6:37b6d0d56190 826 */
samdanbury 6:37b6d0d56190 827 void
samdanbury 6:37b6d0d56190 828 auth_reset(int unit)
samdanbury 6:37b6d0d56190 829 {
samdanbury 6:37b6d0d56190 830 lcp_options *go = &lcp_gotoptions[unit];
samdanbury 6:37b6d0d56190 831 lcp_options *ao = &lcp_allowoptions[0];
samdanbury 6:37b6d0d56190 832 ipcp_options *ipwo = &ipcp_wantoptions[0];
samdanbury 6:37b6d0d56190 833 u32_t remote;
samdanbury 6:37b6d0d56190 834
samdanbury 6:37b6d0d56190 835 AUTHDEBUG(LOG_INFO, ("auth_reset: %d\n", unit));
samdanbury 6:37b6d0d56190 836 ao->neg_upap = !ppp_settings.refuse_pap && (ppp_settings.passwd[0] != 0 || get_pap_passwd(unit, NULL, NULL));
samdanbury 6:37b6d0d56190 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)*/;
samdanbury 6:37b6d0d56190 838
samdanbury 6:37b6d0d56190 839 if (go->neg_upap && !have_pap_secret()) {
samdanbury 6:37b6d0d56190 840 go->neg_upap = 0;
samdanbury 6:37b6d0d56190 841 }
samdanbury 6:37b6d0d56190 842 if (go->neg_chap) {
samdanbury 6:37b6d0d56190 843 remote = ipwo->accept_remote? 0: ipwo->hisaddr;
samdanbury 6:37b6d0d56190 844 if (!have_chap_secret(ppp_settings.remote_name, ppp_settings.our_name, remote)) {
samdanbury 6:37b6d0d56190 845 go->neg_chap = 0;
samdanbury 6:37b6d0d56190 846 }
samdanbury 6:37b6d0d56190 847 }
samdanbury 6:37b6d0d56190 848 }
samdanbury 6:37b6d0d56190 849
samdanbury 6:37b6d0d56190 850 #if PAP_SUPPORT
samdanbury 6:37b6d0d56190 851 /*
samdanbury 6:37b6d0d56190 852 * check_passwd - Check the user name and passwd against the PAP secrets
samdanbury 6:37b6d0d56190 853 * file. If requested, also check against the system password database,
samdanbury 6:37b6d0d56190 854 * and login the user if OK.
samdanbury 6:37b6d0d56190 855 *
samdanbury 6:37b6d0d56190 856 * returns:
samdanbury 6:37b6d0d56190 857 * UPAP_AUTHNAK: Authentication failed.
samdanbury 6:37b6d0d56190 858 * UPAP_AUTHACK: Authentication succeeded.
samdanbury 6:37b6d0d56190 859 * In either case, msg points to an appropriate message.
samdanbury 6:37b6d0d56190 860 */
samdanbury 6:37b6d0d56190 861 u_char
samdanbury 6:37b6d0d56190 862 check_passwd( int unit, char *auser, int userlen, char *apasswd, int passwdlen, char **msg, int *msglen)
samdanbury 6:37b6d0d56190 863 {
samdanbury 6:37b6d0d56190 864 #if 1 /* XXX Assume all entries OK. */
samdanbury 6:37b6d0d56190 865 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 866 LWIP_UNUSED_ARG(auser);
samdanbury 6:37b6d0d56190 867 LWIP_UNUSED_ARG(userlen);
samdanbury 6:37b6d0d56190 868 LWIP_UNUSED_ARG(apasswd);
samdanbury 6:37b6d0d56190 869 LWIP_UNUSED_ARG(passwdlen);
samdanbury 6:37b6d0d56190 870 LWIP_UNUSED_ARG(msglen);
samdanbury 6:37b6d0d56190 871 *msg = (char *) 0;
samdanbury 6:37b6d0d56190 872 return UPAP_AUTHACK; /* XXX Assume all entries OK. */
samdanbury 6:37b6d0d56190 873 #else
samdanbury 6:37b6d0d56190 874 u_char ret = 0;
samdanbury 6:37b6d0d56190 875 struct wordlist *addrs = NULL;
samdanbury 6:37b6d0d56190 876 char passwd[256], user[256];
samdanbury 6:37b6d0d56190 877 char secret[MAXWORDLEN];
samdanbury 6:37b6d0d56190 878 static u_short attempts = 0;
samdanbury 6:37b6d0d56190 879
samdanbury 6:37b6d0d56190 880 /*
samdanbury 6:37b6d0d56190 881 * Make copies of apasswd and auser, then null-terminate them.
samdanbury 6:37b6d0d56190 882 */
samdanbury 6:37b6d0d56190 883 BCOPY(apasswd, passwd, passwdlen);
samdanbury 6:37b6d0d56190 884 passwd[passwdlen] = '\0';
samdanbury 6:37b6d0d56190 885 BCOPY(auser, user, userlen);
samdanbury 6:37b6d0d56190 886 user[userlen] = '\0';
samdanbury 6:37b6d0d56190 887 *msg = (char *) 0;
samdanbury 6:37b6d0d56190 888
samdanbury 6:37b6d0d56190 889 /* XXX Validate user name and password. */
samdanbury 6:37b6d0d56190 890 ret = UPAP_AUTHACK; /* XXX Assume all entries OK. */
samdanbury 6:37b6d0d56190 891
samdanbury 6:37b6d0d56190 892 if (ret == UPAP_AUTHNAK) {
samdanbury 6:37b6d0d56190 893 if (*msg == (char *) 0) {
samdanbury 6:37b6d0d56190 894 *msg = "Login incorrect";
samdanbury 6:37b6d0d56190 895 }
samdanbury 6:37b6d0d56190 896 *msglen = strlen(*msg);
samdanbury 6:37b6d0d56190 897 /*
samdanbury 6:37b6d0d56190 898 * Frustrate passwd stealer programs.
samdanbury 6:37b6d0d56190 899 * Allow 10 tries, but start backing off after 3 (stolen from login).
samdanbury 6:37b6d0d56190 900 * On 10'th, drop the connection.
samdanbury 6:37b6d0d56190 901 */
samdanbury 6:37b6d0d56190 902 if (attempts++ >= 10) {
samdanbury 6:37b6d0d56190 903 AUTHDEBUG(LOG_WARNING, ("%d LOGIN FAILURES BY %s\n", attempts, user));
samdanbury 6:37b6d0d56190 904 /*ppp_panic("Excess Bad Logins");*/
samdanbury 6:37b6d0d56190 905 }
samdanbury 6:37b6d0d56190 906 if (attempts > 3) {
samdanbury 6:37b6d0d56190 907 /* @todo: this was sleep(), i.e. seconds, not milliseconds
samdanbury 6:37b6d0d56190 908 * I don't think we really need this in lwIP - we would block tcpip_thread!
samdanbury 6:37b6d0d56190 909 */
samdanbury 6:37b6d0d56190 910 /*sys_msleep((attempts - 3) * 5);*/
samdanbury 6:37b6d0d56190 911 }
samdanbury 6:37b6d0d56190 912 if (addrs != NULL) {
samdanbury 6:37b6d0d56190 913 free_wordlist(addrs);
samdanbury 6:37b6d0d56190 914 }
samdanbury 6:37b6d0d56190 915 } else {
samdanbury 6:37b6d0d56190 916 attempts = 0; /* Reset count */
samdanbury 6:37b6d0d56190 917 if (*msg == (char *) 0) {
samdanbury 6:37b6d0d56190 918 *msg = "Login ok";
samdanbury 6:37b6d0d56190 919 }
samdanbury 6:37b6d0d56190 920 *msglen = strlen(*msg);
samdanbury 6:37b6d0d56190 921 set_allowed_addrs(unit, addrs);
samdanbury 6:37b6d0d56190 922 }
samdanbury 6:37b6d0d56190 923
samdanbury 6:37b6d0d56190 924 BZERO(passwd, sizeof(passwd));
samdanbury 6:37b6d0d56190 925 BZERO(secret, sizeof(secret));
samdanbury 6:37b6d0d56190 926
samdanbury 6:37b6d0d56190 927 return ret;
samdanbury 6:37b6d0d56190 928 #endif
samdanbury 6:37b6d0d56190 929 }
samdanbury 6:37b6d0d56190 930 #endif /* PAP_SUPPORT */
samdanbury 6:37b6d0d56190 931
samdanbury 6:37b6d0d56190 932 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 933 /*
samdanbury 6:37b6d0d56190 934 * This function is needed for PAM.
samdanbury 6:37b6d0d56190 935 */
samdanbury 6:37b6d0d56190 936
samdanbury 6:37b6d0d56190 937 #ifdef USE_PAM
samdanbury 6:37b6d0d56190 938
samdanbury 6:37b6d0d56190 939 /* lwip does not support PAM*/
samdanbury 6:37b6d0d56190 940
samdanbury 6:37b6d0d56190 941 #endif /* USE_PAM */
samdanbury 6:37b6d0d56190 942
samdanbury 6:37b6d0d56190 943 #endif /* UNUSED */
samdanbury 6:37b6d0d56190 944
samdanbury 6:37b6d0d56190 945
samdanbury 6:37b6d0d56190 946 #if 0 /* UNUSED */
samdanbury 6:37b6d0d56190 947 /*
samdanbury 6:37b6d0d56190 948 * plogin - Check the user name and password against the system
samdanbury 6:37b6d0d56190 949 * password database, and login the user if OK.
samdanbury 6:37b6d0d56190 950 *
samdanbury 6:37b6d0d56190 951 * returns:
samdanbury 6:37b6d0d56190 952 * UPAP_AUTHNAK: Login failed.
samdanbury 6:37b6d0d56190 953 * UPAP_AUTHACK: Login succeeded.
samdanbury 6:37b6d0d56190 954 * In either case, msg points to an appropriate message.
samdanbury 6:37b6d0d56190 955 */
samdanbury 6:37b6d0d56190 956 static int
samdanbury 6:37b6d0d56190 957 plogin(char *user, char *passwd, char **msg, int *msglen)
samdanbury 6:37b6d0d56190 958 {
samdanbury 6:37b6d0d56190 959
samdanbury 6:37b6d0d56190 960 LWIP_UNUSED_ARG(user);
samdanbury 6:37b6d0d56190 961 LWIP_UNUSED_ARG(passwd);
samdanbury 6:37b6d0d56190 962 LWIP_UNUSED_ARG(msg);
samdanbury 6:37b6d0d56190 963 LWIP_UNUSED_ARG(msglen);
samdanbury 6:37b6d0d56190 964
samdanbury 6:37b6d0d56190 965
samdanbury 6:37b6d0d56190 966 /* The new lines are here align the file when
samdanbury 6:37b6d0d56190 967 * compared against the pppd 2.3.11 code */
samdanbury 6:37b6d0d56190 968
samdanbury 6:37b6d0d56190 969
samdanbury 6:37b6d0d56190 970
samdanbury 6:37b6d0d56190 971
samdanbury 6:37b6d0d56190 972
samdanbury 6:37b6d0d56190 973
samdanbury 6:37b6d0d56190 974
samdanbury 6:37b6d0d56190 975
samdanbury 6:37b6d0d56190 976
samdanbury 6:37b6d0d56190 977
samdanbury 6:37b6d0d56190 978
samdanbury 6:37b6d0d56190 979
samdanbury 6:37b6d0d56190 980
samdanbury 6:37b6d0d56190 981
samdanbury 6:37b6d0d56190 982
samdanbury 6:37b6d0d56190 983
samdanbury 6:37b6d0d56190 984 /* XXX Fail until we decide that we want to support logins. */
samdanbury 6:37b6d0d56190 985 return (UPAP_AUTHNAK);
samdanbury 6:37b6d0d56190 986 }
samdanbury 6:37b6d0d56190 987 #endif
samdanbury 6:37b6d0d56190 988
samdanbury 6:37b6d0d56190 989
samdanbury 6:37b6d0d56190 990
samdanbury 6:37b6d0d56190 991 /*
samdanbury 6:37b6d0d56190 992 * plogout - Logout the user.
samdanbury 6:37b6d0d56190 993 */
samdanbury 6:37b6d0d56190 994 static void
samdanbury 6:37b6d0d56190 995 plogout(void)
samdanbury 6:37b6d0d56190 996 {
samdanbury 6:37b6d0d56190 997 logged_in = 0;
samdanbury 6:37b6d0d56190 998 }
samdanbury 6:37b6d0d56190 999
samdanbury 6:37b6d0d56190 1000 /*
samdanbury 6:37b6d0d56190 1001 * null_login - Check if a username of "" and a password of "" are
samdanbury 6:37b6d0d56190 1002 * acceptable, and iff so, set the list of acceptable IP addresses
samdanbury 6:37b6d0d56190 1003 * and return 1.
samdanbury 6:37b6d0d56190 1004 */
samdanbury 6:37b6d0d56190 1005 static int
samdanbury 6:37b6d0d56190 1006 null_login(int unit)
samdanbury 6:37b6d0d56190 1007 {
samdanbury 6:37b6d0d56190 1008 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 1009 /* XXX Fail until we decide that we want to support logins. */
samdanbury 6:37b6d0d56190 1010 return 0;
samdanbury 6:37b6d0d56190 1011 }
samdanbury 6:37b6d0d56190 1012
samdanbury 6:37b6d0d56190 1013
samdanbury 6:37b6d0d56190 1014 /*
samdanbury 6:37b6d0d56190 1015 * get_pap_passwd - get a password for authenticating ourselves with
samdanbury 6:37b6d0d56190 1016 * our peer using PAP. Returns 1 on success, 0 if no suitable password
samdanbury 6:37b6d0d56190 1017 * could be found.
samdanbury 6:37b6d0d56190 1018 */
samdanbury 6:37b6d0d56190 1019 static int
samdanbury 6:37b6d0d56190 1020 get_pap_passwd(int unit, char *user, char *passwd)
samdanbury 6:37b6d0d56190 1021 {
samdanbury 6:37b6d0d56190 1022 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 1023 /* normally we would reject PAP if no password is provided,
samdanbury 6:37b6d0d56190 1024 but this causes problems with some providers (like CHT in Taiwan)
samdanbury 6:37b6d0d56190 1025 who incorrectly request PAP and expect a bogus/empty password, so
samdanbury 6:37b6d0d56190 1026 always provide a default user/passwd of "none"/"none"
samdanbury 6:37b6d0d56190 1027
samdanbury 6:37b6d0d56190 1028 @todo: This should be configured by the user, instead of being hardcoded here!
samdanbury 6:37b6d0d56190 1029 */
samdanbury 6:37b6d0d56190 1030 if(user) {
samdanbury 6:37b6d0d56190 1031 strcpy(user, "none");
samdanbury 6:37b6d0d56190 1032 }
samdanbury 6:37b6d0d56190 1033 if(passwd) {
samdanbury 6:37b6d0d56190 1034 strcpy(passwd, "none");
samdanbury 6:37b6d0d56190 1035 }
samdanbury 6:37b6d0d56190 1036 return 1;
samdanbury 6:37b6d0d56190 1037 }
samdanbury 6:37b6d0d56190 1038
samdanbury 6:37b6d0d56190 1039 /*
samdanbury 6:37b6d0d56190 1040 * have_pap_secret - check whether we have a PAP file with any
samdanbury 6:37b6d0d56190 1041 * secrets that we could possibly use for authenticating the peer.
samdanbury 6:37b6d0d56190 1042 */
samdanbury 6:37b6d0d56190 1043 static int
samdanbury 6:37b6d0d56190 1044 have_pap_secret(void)
samdanbury 6:37b6d0d56190 1045 {
samdanbury 6:37b6d0d56190 1046 /* XXX Fail until we set up our passwords. */
samdanbury 6:37b6d0d56190 1047 return 0;
samdanbury 6:37b6d0d56190 1048 }
samdanbury 6:37b6d0d56190 1049
samdanbury 6:37b6d0d56190 1050 /*
samdanbury 6:37b6d0d56190 1051 * have_chap_secret - check whether we have a CHAP file with a
samdanbury 6:37b6d0d56190 1052 * secret that we could possibly use for authenticating `client'
samdanbury 6:37b6d0d56190 1053 * on `server'. Either can be the null string, meaning we don't
samdanbury 6:37b6d0d56190 1054 * know the identity yet.
samdanbury 6:37b6d0d56190 1055 */
samdanbury 6:37b6d0d56190 1056 static int
samdanbury 6:37b6d0d56190 1057 have_chap_secret(char *client, char *server, u32_t remote)
samdanbury 6:37b6d0d56190 1058 {
samdanbury 6:37b6d0d56190 1059 LWIP_UNUSED_ARG(client);
samdanbury 6:37b6d0d56190 1060 LWIP_UNUSED_ARG(server);
samdanbury 6:37b6d0d56190 1061 LWIP_UNUSED_ARG(remote);
samdanbury 6:37b6d0d56190 1062
samdanbury 6:37b6d0d56190 1063 /* XXX Fail until we set up our passwords. */
samdanbury 6:37b6d0d56190 1064 return 0;
samdanbury 6:37b6d0d56190 1065 }
samdanbury 6:37b6d0d56190 1066 #if CHAP_SUPPORT
samdanbury 6:37b6d0d56190 1067
samdanbury 6:37b6d0d56190 1068 /*
samdanbury 6:37b6d0d56190 1069 * get_secret - open the CHAP secret file and return the secret
samdanbury 6:37b6d0d56190 1070 * for authenticating the given client on the given server.
samdanbury 6:37b6d0d56190 1071 * (We could be either client or server).
samdanbury 6:37b6d0d56190 1072 */
samdanbury 6:37b6d0d56190 1073 int
samdanbury 6:37b6d0d56190 1074 get_secret(int unit, char *client, char *server, char *secret, int *secret_len, int save_addrs)
samdanbury 6:37b6d0d56190 1075 {
samdanbury 6:37b6d0d56190 1076 #if 1
samdanbury 6:37b6d0d56190 1077 int len;
samdanbury 6:37b6d0d56190 1078 struct wordlist *addrs;
samdanbury 6:37b6d0d56190 1079
samdanbury 6:37b6d0d56190 1080 LWIP_UNUSED_ARG(unit);
samdanbury 6:37b6d0d56190 1081 LWIP_UNUSED_ARG(server);
samdanbury 6:37b6d0d56190 1082 LWIP_UNUSED_ARG(save_addrs);
samdanbury 6:37b6d0d56190 1083
samdanbury 6:37b6d0d56190 1084 addrs = NULL;
samdanbury 6:37b6d0d56190 1085
samdanbury 6:37b6d0d56190 1086 if(!client || !client[0] || strcmp(client, ppp_settings.user)) {
samdanbury 6:37b6d0d56190 1087 return 0;
samdanbury 6:37b6d0d56190 1088 }
samdanbury 6:37b6d0d56190 1089
samdanbury 6:37b6d0d56190 1090 len = (int)strlen(ppp_settings.passwd);
samdanbury 6:37b6d0d56190 1091 if (len > MAXSECRETLEN) {
samdanbury 6:37b6d0d56190 1092 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
samdanbury 6:37b6d0d56190 1093 len = MAXSECRETLEN;
samdanbury 6:37b6d0d56190 1094 }
samdanbury 6:37b6d0d56190 1095
samdanbury 6:37b6d0d56190 1096 BCOPY(ppp_settings.passwd, secret, len);
samdanbury 6:37b6d0d56190 1097 *secret_len = len;
samdanbury 6:37b6d0d56190 1098
samdanbury 6:37b6d0d56190 1099 return 1;
samdanbury 6:37b6d0d56190 1100 #else
samdanbury 6:37b6d0d56190 1101 int ret = 0, len;
samdanbury 6:37b6d0d56190 1102 struct wordlist *addrs;
samdanbury 6:37b6d0d56190 1103 char secbuf[MAXWORDLEN];
samdanbury 6:37b6d0d56190 1104
samdanbury 6:37b6d0d56190 1105 addrs = NULL;
samdanbury 6:37b6d0d56190 1106 secbuf[0] = 0;
samdanbury 6:37b6d0d56190 1107
samdanbury 6:37b6d0d56190 1108 /* XXX Find secret. */
samdanbury 6:37b6d0d56190 1109 if (ret < 0) {
samdanbury 6:37b6d0d56190 1110 return 0;
samdanbury 6:37b6d0d56190 1111 }
samdanbury 6:37b6d0d56190 1112
samdanbury 6:37b6d0d56190 1113 if (save_addrs) {
samdanbury 6:37b6d0d56190 1114 set_allowed_addrs(unit, addrs);
samdanbury 6:37b6d0d56190 1115 }
samdanbury 6:37b6d0d56190 1116
samdanbury 6:37b6d0d56190 1117 len = strlen(secbuf);
samdanbury 6:37b6d0d56190 1118 if (len > MAXSECRETLEN) {
samdanbury 6:37b6d0d56190 1119 AUTHDEBUG(LOG_ERR, ("Secret for %s on %s is too long\n", client, server));
samdanbury 6:37b6d0d56190 1120 len = MAXSECRETLEN;
samdanbury 6:37b6d0d56190 1121 }
samdanbury 6:37b6d0d56190 1122
samdanbury 6:37b6d0d56190 1123 BCOPY(secbuf, secret, len);
samdanbury 6:37b6d0d56190 1124 BZERO(secbuf, sizeof(secbuf));
samdanbury 6:37b6d0d56190 1125 *secret_len = len;
samdanbury 6:37b6d0d56190 1126
samdanbury 6:37b6d0d56190 1127 return 1;
samdanbury 6:37b6d0d56190 1128 #endif
samdanbury 6:37b6d0d56190 1129 }
samdanbury 6:37b6d0d56190 1130 #endif /* CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 1131
samdanbury 6:37b6d0d56190 1132
samdanbury 6:37b6d0d56190 1133 #if 0 /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 1134 /*
samdanbury 6:37b6d0d56190 1135 * set_allowed_addrs() - set the list of allowed addresses.
samdanbury 6:37b6d0d56190 1136 */
samdanbury 6:37b6d0d56190 1137 static void
samdanbury 6:37b6d0d56190 1138 set_allowed_addrs(int unit, struct wordlist *addrs)
samdanbury 6:37b6d0d56190 1139 {
samdanbury 6:37b6d0d56190 1140 if (addresses[unit] != NULL) {
samdanbury 6:37b6d0d56190 1141 free_wordlist(addresses[unit]);
samdanbury 6:37b6d0d56190 1142 }
samdanbury 6:37b6d0d56190 1143 addresses[unit] = addrs;
samdanbury 6:37b6d0d56190 1144
samdanbury 6:37b6d0d56190 1145 #if 0
samdanbury 6:37b6d0d56190 1146 /*
samdanbury 6:37b6d0d56190 1147 * If there's only one authorized address we might as well
samdanbury 6:37b6d0d56190 1148 * ask our peer for that one right away
samdanbury 6:37b6d0d56190 1149 */
samdanbury 6:37b6d0d56190 1150 if (addrs != NULL && addrs->next == NULL) {
samdanbury 6:37b6d0d56190 1151 char *p = addrs->word;
samdanbury 6:37b6d0d56190 1152 struct ipcp_options *wo = &ipcp_wantoptions[unit];
samdanbury 6:37b6d0d56190 1153 u32_t a;
samdanbury 6:37b6d0d56190 1154 struct hostent *hp;
samdanbury 6:37b6d0d56190 1155
samdanbury 6:37b6d0d56190 1156 if (wo->hisaddr == 0 && *p != '!' && *p != '-' && strchr(p, '/') == NULL) {
samdanbury 6:37b6d0d56190 1157 hp = gethostbyname(p);
samdanbury 6:37b6d0d56190 1158 if (hp != NULL && hp->h_addrtype == AF_INET) {
samdanbury 6:37b6d0d56190 1159 a = *(u32_t *)hp->h_addr;
samdanbury 6:37b6d0d56190 1160 } else {
samdanbury 6:37b6d0d56190 1161 a = inet_addr(p);
samdanbury 6:37b6d0d56190 1162 }
samdanbury 6:37b6d0d56190 1163 if (a != (u32_t) -1) {
samdanbury 6:37b6d0d56190 1164 wo->hisaddr = a;
samdanbury 6:37b6d0d56190 1165 }
samdanbury 6:37b6d0d56190 1166 }
samdanbury 6:37b6d0d56190 1167 }
samdanbury 6:37b6d0d56190 1168 #endif
samdanbury 6:37b6d0d56190 1169 }
samdanbury 6:37b6d0d56190 1170 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 1171
samdanbury 6:37b6d0d56190 1172 /*
samdanbury 6:37b6d0d56190 1173 * auth_ip_addr - check whether the peer is authorized to use
samdanbury 6:37b6d0d56190 1174 * a given IP address. Returns 1 if authorized, 0 otherwise.
samdanbury 6:37b6d0d56190 1175 */
samdanbury 6:37b6d0d56190 1176 int
samdanbury 6:37b6d0d56190 1177 auth_ip_addr(int unit, u32_t addr)
samdanbury 6:37b6d0d56190 1178 {
samdanbury 6:37b6d0d56190 1179 return ip_addr_check(addr, addresses[unit]);
samdanbury 6:37b6d0d56190 1180 }
samdanbury 6:37b6d0d56190 1181
samdanbury 6:37b6d0d56190 1182 static int /* @todo: integrate this funtion into auth_ip_addr()*/
samdanbury 6:37b6d0d56190 1183 ip_addr_check(u32_t addr, struct wordlist *addrs)
samdanbury 6:37b6d0d56190 1184 {
samdanbury 6:37b6d0d56190 1185 /* don't allow loopback or multicast address */
samdanbury 6:37b6d0d56190 1186 if (bad_ip_adrs(addr)) {
samdanbury 6:37b6d0d56190 1187 return 0;
samdanbury 6:37b6d0d56190 1188 }
samdanbury 6:37b6d0d56190 1189
samdanbury 6:37b6d0d56190 1190 if (addrs == NULL) {
samdanbury 6:37b6d0d56190 1191 return !ppp_settings.auth_required; /* no addresses authorized */
samdanbury 6:37b6d0d56190 1192 }
samdanbury 6:37b6d0d56190 1193
samdanbury 6:37b6d0d56190 1194 /* XXX All other addresses allowed. */
samdanbury 6:37b6d0d56190 1195 return 1;
samdanbury 6:37b6d0d56190 1196 }
samdanbury 6:37b6d0d56190 1197
samdanbury 6:37b6d0d56190 1198 /*
samdanbury 6:37b6d0d56190 1199 * bad_ip_adrs - return 1 if the IP address is one we don't want
samdanbury 6:37b6d0d56190 1200 * to use, such as an address in the loopback net or a multicast address.
samdanbury 6:37b6d0d56190 1201 * addr is in network byte order.
samdanbury 6:37b6d0d56190 1202 */
samdanbury 6:37b6d0d56190 1203 int
samdanbury 6:37b6d0d56190 1204 bad_ip_adrs(u32_t addr)
samdanbury 6:37b6d0d56190 1205 {
samdanbury 6:37b6d0d56190 1206 addr = ntohl(addr);
samdanbury 6:37b6d0d56190 1207 return (addr >> IN_CLASSA_NSHIFT) == IN_LOOPBACKNET
samdanbury 6:37b6d0d56190 1208 || IN_MULTICAST(addr) || IN_BADCLASS(addr);
samdanbury 6:37b6d0d56190 1209 }
samdanbury 6:37b6d0d56190 1210
samdanbury 6:37b6d0d56190 1211 #if 0 /* UNUSED */ /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 1212 /*
samdanbury 6:37b6d0d56190 1213 * some_ip_ok - check a wordlist to see if it authorizes any
samdanbury 6:37b6d0d56190 1214 * IP address(es).
samdanbury 6:37b6d0d56190 1215 */
samdanbury 6:37b6d0d56190 1216 static int
samdanbury 6:37b6d0d56190 1217 some_ip_ok(struct wordlist *addrs)
samdanbury 6:37b6d0d56190 1218 {
samdanbury 6:37b6d0d56190 1219 for (; addrs != 0; addrs = addrs->next) {
samdanbury 6:37b6d0d56190 1220 if (addrs->word[0] == '-')
samdanbury 6:37b6d0d56190 1221 break;
samdanbury 6:37b6d0d56190 1222 if (addrs->word[0] != '!')
samdanbury 6:37b6d0d56190 1223 return 1; /* some IP address is allowed */
samdanbury 6:37b6d0d56190 1224 }
samdanbury 6:37b6d0d56190 1225 return 0;
samdanbury 6:37b6d0d56190 1226 }
samdanbury 6:37b6d0d56190 1227
samdanbury 6:37b6d0d56190 1228 /*
samdanbury 6:37b6d0d56190 1229 * check_access - complain if a secret file has too-liberal permissions.
samdanbury 6:37b6d0d56190 1230 */
samdanbury 6:37b6d0d56190 1231 static void
samdanbury 6:37b6d0d56190 1232 check_access(FILE *f, char *filename)
samdanbury 6:37b6d0d56190 1233 {
samdanbury 6:37b6d0d56190 1234 struct stat sbuf;
samdanbury 6:37b6d0d56190 1235
samdanbury 6:37b6d0d56190 1236 if (fstat(fileno(f), &sbuf) < 0) {
samdanbury 6:37b6d0d56190 1237 warn("cannot stat secret file %s: %m", filename);
samdanbury 6:37b6d0d56190 1238 } else if ((sbuf.st_mode & (S_IRWXG | S_IRWXO)) != 0) {
samdanbury 6:37b6d0d56190 1239 warn("Warning - secret file %s has world and/or group access",
samdanbury 6:37b6d0d56190 1240 filename);
samdanbury 6:37b6d0d56190 1241 }
samdanbury 6:37b6d0d56190 1242 }
samdanbury 6:37b6d0d56190 1243
samdanbury 6:37b6d0d56190 1244
samdanbury 6:37b6d0d56190 1245 /*
samdanbury 6:37b6d0d56190 1246 * scan_authfile - Scan an authorization file for a secret suitable
samdanbury 6:37b6d0d56190 1247 * for authenticating `client' on `server'. The return value is -1
samdanbury 6:37b6d0d56190 1248 * if no secret is found, otherwise >= 0. The return value has
samdanbury 6:37b6d0d56190 1249 * NONWILD_CLIENT set if the secret didn't have "*" for the client, and
samdanbury 6:37b6d0d56190 1250 * NONWILD_SERVER set if the secret didn't have "*" for the server.
samdanbury 6:37b6d0d56190 1251 * Any following words on the line up to a "--" (i.e. address authorization
samdanbury 6:37b6d0d56190 1252 * info) are placed in a wordlist and returned in *addrs. Any
samdanbury 6:37b6d0d56190 1253 * following words (extra options) are placed in a wordlist and
samdanbury 6:37b6d0d56190 1254 * returned in *opts.
samdanbury 6:37b6d0d56190 1255 * We assume secret is NULL or points to MAXWORDLEN bytes of space.
samdanbury 6:37b6d0d56190 1256 */
samdanbury 6:37b6d0d56190 1257 static int
samdanbury 6:37b6d0d56190 1258 scan_authfile(FILE *f, char *client, char *server, char *secret, struct wordlist **addrs, struct wordlist **opts, char *filename)
samdanbury 6:37b6d0d56190 1259 {
samdanbury 6:37b6d0d56190 1260 /* We do not (currently) need this in lwip */
samdanbury 6:37b6d0d56190 1261 return 0; /* dummy */
samdanbury 6:37b6d0d56190 1262 }
samdanbury 6:37b6d0d56190 1263 /*
samdanbury 6:37b6d0d56190 1264 * free_wordlist - release memory allocated for a wordlist.
samdanbury 6:37b6d0d56190 1265 */
samdanbury 6:37b6d0d56190 1266 static void
samdanbury 6:37b6d0d56190 1267 free_wordlist(struct wordlist *wp)
samdanbury 6:37b6d0d56190 1268 {
samdanbury 6:37b6d0d56190 1269 struct wordlist *next;
samdanbury 6:37b6d0d56190 1270
samdanbury 6:37b6d0d56190 1271 while (wp != NULL) {
samdanbury 6:37b6d0d56190 1272 next = wp->next;
samdanbury 6:37b6d0d56190 1273 free(wp);
samdanbury 6:37b6d0d56190 1274 wp = next;
samdanbury 6:37b6d0d56190 1275 }
samdanbury 6:37b6d0d56190 1276 }
samdanbury 6:37b6d0d56190 1277
samdanbury 6:37b6d0d56190 1278 /*
samdanbury 6:37b6d0d56190 1279 * auth_script_done - called when the auth-up or auth-down script
samdanbury 6:37b6d0d56190 1280 * has finished.
samdanbury 6:37b6d0d56190 1281 */
samdanbury 6:37b6d0d56190 1282 static void
samdanbury 6:37b6d0d56190 1283 auth_script_done(void *arg)
samdanbury 6:37b6d0d56190 1284 {
samdanbury 6:37b6d0d56190 1285 auth_script_pid = 0;
samdanbury 6:37b6d0d56190 1286 switch (auth_script_state) {
samdanbury 6:37b6d0d56190 1287 case s_up:
samdanbury 6:37b6d0d56190 1288 if (auth_state == s_down) {
samdanbury 6:37b6d0d56190 1289 auth_script_state = s_down;
samdanbury 6:37b6d0d56190 1290 auth_script(_PATH_AUTHDOWN);
samdanbury 6:37b6d0d56190 1291 }
samdanbury 6:37b6d0d56190 1292 break;
samdanbury 6:37b6d0d56190 1293 case s_down:
samdanbury 6:37b6d0d56190 1294 if (auth_state == s_up) {
samdanbury 6:37b6d0d56190 1295 auth_script_state = s_up;
samdanbury 6:37b6d0d56190 1296 auth_script(_PATH_AUTHUP);
samdanbury 6:37b6d0d56190 1297 }
samdanbury 6:37b6d0d56190 1298 break;
samdanbury 6:37b6d0d56190 1299 }
samdanbury 6:37b6d0d56190 1300 }
samdanbury 6:37b6d0d56190 1301
samdanbury 6:37b6d0d56190 1302 /*
samdanbury 6:37b6d0d56190 1303 * auth_script - execute a script with arguments
samdanbury 6:37b6d0d56190 1304 * interface-name peer-name real-user tty speed
samdanbury 6:37b6d0d56190 1305 */
samdanbury 6:37b6d0d56190 1306 static void
samdanbury 6:37b6d0d56190 1307 auth_script(char *script)
samdanbury 6:37b6d0d56190 1308 {
samdanbury 6:37b6d0d56190 1309 char strspeed[32];
samdanbury 6:37b6d0d56190 1310 struct passwd *pw;
samdanbury 6:37b6d0d56190 1311 char struid[32];
samdanbury 6:37b6d0d56190 1312 char *user_name;
samdanbury 6:37b6d0d56190 1313 char *argv[8];
samdanbury 6:37b6d0d56190 1314
samdanbury 6:37b6d0d56190 1315 if ((pw = getpwuid(getuid())) != NULL && pw->pw_name != NULL)
samdanbury 6:37b6d0d56190 1316 user_name = pw->pw_name;
samdanbury 6:37b6d0d56190 1317 else {
samdanbury 6:37b6d0d56190 1318 slprintf(struid, sizeof(struid), "%d", getuid());
samdanbury 6:37b6d0d56190 1319 user_name = struid;
samdanbury 6:37b6d0d56190 1320 }
samdanbury 6:37b6d0d56190 1321 slprintf(strspeed, sizeof(strspeed), "%d", baud_rate);
samdanbury 6:37b6d0d56190 1322
samdanbury 6:37b6d0d56190 1323 argv[0] = script;
samdanbury 6:37b6d0d56190 1324 argv[1] = ifname;
samdanbury 6:37b6d0d56190 1325 argv[2] = peer_authname;
samdanbury 6:37b6d0d56190 1326 argv[3] = user_name;
samdanbury 6:37b6d0d56190 1327 argv[4] = devnam;
samdanbury 6:37b6d0d56190 1328 argv[5] = strspeed;
samdanbury 6:37b6d0d56190 1329 argv[6] = NULL;
samdanbury 6:37b6d0d56190 1330
samdanbury 6:37b6d0d56190 1331 auth_script_pid = run_program(script, argv, 0, auth_script_done, NULL);
samdanbury 6:37b6d0d56190 1332 }
samdanbury 6:37b6d0d56190 1333 #endif /* 0 */ /* PAP_SUPPORT || CHAP_SUPPORT */
samdanbury 6:37b6d0d56190 1334 #endif /* PPP_SUPPORT */