src/modules/rlm_securid/rlm_securid.c

   1 /*
   2  *   This program is is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License, version 2 if the
   4  *   License as published by the Free Software Foundation.
   5  *
   6  *   This program is distributed in the hope that it will be useful,
   7  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   9  *   GNU General Public License for more details.
  10  *
  11  *   You should have received a copy of the GNU General Public License
  12  *   along with this program; if not, write to the Free Software
  13  *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  14  */
  15
  16 /**
  17  * $Id$
  18  * @file rlm_securid.c
  19  * @brief Supports auth against SecurID servers using OTP h/w tokens.
  20  *
  21  * Supports "next-token code" and "new-pin" modes.
  22  *
  23  * @copyright 2012  The FreeRADIUS server project
  24  * @copyright 2012  Alan DeKok <aland@networkradius.com>
  25  */
  26 #include <freeradius-devel/ident.h>
  27 #include <freeradius-devel/radiusd.h>
  28 #include <freeradius-devel/modules.h>
  29 #include <ctype.h>
  30
  31 #include "rlm_securid.h"
  32
  33 typedef enum {
  34         RC_SECURID_AUTH_SUCCESS = 0,
  35         RC_SECURID_AUTH_FAILURE = -3,
  36         RC_SECURID_AUTH_ACCESS_DENIED_FAILURE = -4,
  37         RC_SECURID_AUTH_INVALID_SERVER_FAILURE = -5,
  38         RC_SECURID_AUTH_CHALLENGE = -17
  39 } SECURID_AUTH_RC;
  40
  41
  42 static const CONF_PARSER module_config[] = {
  43         { "timer_expire", PW_TYPE_INTEGER,
  44           offsetof(rlm_securid_t, timer_limit), NULL, "600"},
  45         { "max_sessions", PW_TYPE_INTEGER,
  46           offsetof(rlm_securid_t, max_sessions), NULL, "2048"},
  47         { "max_trips_per_session", PW_TYPE_INTEGER,
  48           offsetof(rlm_securid_t, max_trips_per_session), NULL, NULL},
  49         { "max_round_trips", PW_TYPE_INTEGER,
  50           offsetof(rlm_securid_t, max_trips_per_session), NULL, "6"},
  51         { NULL, -1, 0, NULL, NULL }             /* end the list */
  52 };
  53
  54
  55 /* comparison function to find session in the tree */
  56 static int securid_session_cmp(const void *a, const void *b)
  57 {
  58         int rcode;
  59         const SECURID_SESSION *one = a;
  60         const SECURID_SESSION *two = b;
  61
  62         rad_assert(one != NULL);
  63         rad_assert(two != NULL);
  64
  65         rcode = fr_ipaddr_cmp(&one->src_ipaddr, &two->src_ipaddr);
  66         if (rcode != 0) return rcode;
  67
  68         return memcmp(one->state, two->state, sizeof(one->state));
  69 }
  70
  71
  72 static SECURID_AUTH_RC securidAuth(void *instance, REQUEST *request,
  73                                    const char* username,
  74                                    const char* passcode,
  75                                    char* replyMsgBuffer,int replyMsgBufferSize)
  76 {
  77         rlm_securid_t *inst = (rlm_securid_t *) instance;
  78         int         acmRet;
  79         SD_PIN pinParams;
  80         char newPin[10];
  81         char format[30];
  82         SECURID_SESSION *pSecurid_session=NULL;
  83         int rc=-1;
  84
  85         if (!username) {
  86                 radlog(L_ERR, "SecurID username is NULL");
  87                 return RC_SECURID_AUTH_FAILURE;
  88         }
  89
  90         if (!passcode) {
  91                 radlog(L_ERR, "SecurID passcode is NULL for %s user",username);
  92                 return RC_SECURID_AUTH_FAILURE;
  93         }
  94
  95         *replyMsgBuffer = '\0';
  96
  97         pSecurid_session = securid_sessionlist_find(inst,request);
  98         if (pSecurid_session == NULL) {
  99                 /* securid session not found */
 100                 SDI_HANDLE  sdiHandle = SDI_HANDLE_NONE;
 101
 102                 acmRet = SD_Init(&sdiHandle);
 103                 if (acmRet != ACM_OK) {
 104                         radlog(L_ERR, "Cannot communicate with the ACE/Server");
 105                         return -1;
 106                 }
 107
 108                 acmRet = SD_Lock(sdiHandle, (SD_CHAR*)username);
 109                 if (acmRet != ACM_OK) {
 110                         radlog(L_ERR,"SecurID: Access denied. Name [%s] lock failed.",username);
 111                         return -2;
 112                 }
 113
 114                 acmRet = SD_Check(sdiHandle, (SD_CHAR*) passcode,
 115                                   (SD_CHAR*) username);
 116                 switch (acmRet) {
 117                 case ACM_OK:
 118                         /* we are in now */
 119                         RDEBUG("SecurID authentication successful for %s.",
 120                                username);
 121                         SD_Close(sdiHandle);
 122
 123                         return RC_SECURID_AUTH_SUCCESS;
 124
 125                 case ACM_ACCESS_DENIED:
 126                         /* not this time */
 127                         RDEBUG("SecurID Access denied for %s", username);
 128                         SD_Close(sdiHandle);
 129                         return RC_SECURID_AUTH_ACCESS_DENIED_FAILURE;
 130
 131                 case ACM_INVALID_SERVER:
 132                         radlog(L_ERR,"SecurID: Invalid ACE server.");
 133                         return RC_SECURID_AUTH_INVALID_SERVER_FAILURE;
 134
 135                 case ACM_NEW_PIN_REQUIRED:
 136                         RDEBUG2("SeecurID new pin required for %s",
 137                                 username);
 138
 139                         /* create a new session */
 140                         pSecurid_session = securid_session_alloc();
 141                         pSecurid_session->sdiHandle = sdiHandle; /* save ACE handle for future use */
 142                         pSecurid_session->securidSessionState = NEW_PIN_REQUIRED_STATE;
 143                         pSecurid_session->identity = strdup(username);
 144
 145                         /* Get PIN requirements */
 146                         acmRet = AceGetPinParams(sdiHandle, &pinParams);
 147
 148                         /* If a system-generated PIN is required */
 149                         if (pinParams.Selectable == CANNOT_CHOOSE_PIN) {
 150                                 /* Prompt user to accept a system generated PIN */
 151                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 152                                          "\r\nAre you prepared to accept a new system-generated PIN [y/n]?");
 153                                 pSecurid_session->securidSessionState = NEW_PIN_SYSTEM_ACCEPT_STATE;
 154
 155                         } else if (pinParams.Selectable == USER_SELECTABLE) { //may be returned by AM 6.x servers.
 156                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 157                                          "\r\nPress 'y' to generate a new PIN\r\nOR\r\n'n'to enter a new PIN yourself [y/n]");
 158                                 pSecurid_session->securidSessionState = NEW_PIN_USER_SELECT_STATE;
 159
 160                         } else {
 161                                 if (pinParams.Alphanumeric) {
 162                                         strcpy(format, "alphanumeric characters");
 163                                 } else {
 164                                         strcpy(format, "digits");
 165                                 }
 166                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 167                                          " \r\n   Enter your new PIN of %d to %d %s,\r\n                or\r\n   <Ctrl-D> to cancel the New PIN procedure:",
 168                                          pinParams.Min, pinParams.Max, format);
 169                         }
 170
 171                         /* insert new session in the session list */
 172                         securid_sessionlist_add(inst,request,pSecurid_session);
 173
 174                         return RC_SECURID_AUTH_CHALLENGE;
 175
 176                 case ACM_NEXT_CODE_REQUIRED:
 177                         RDEBUG2("Next securid token code required for %s",
 178                                 username);
 179
 180                         /* create a new session */
 181                         pSecurid_session = securid_session_alloc();
 182                         pSecurid_session->sdiHandle = sdiHandle;
 183                         pSecurid_session->securidSessionState = NEXT_CODE_REQUIRED_STATE;
 184                         pSecurid_session->identity = strdup(username);
 185
 186                         /* insert new session in the session list */
 187                         securid_sessionlist_add(inst,request,pSecurid_session);
 188
 189                         strlcpy(replyMsgBuffer, "\r\nPlease Enter the Next Code from Your Token:", replyMsgBufferSize);
 190                         return RC_SECURID_AUTH_CHALLENGE;
 191                 default:
 192                         radlog(L_ERR,"SecurID: Unexpected error from ACE/Agent API acmRet=%d",acmRet);
 193                         return RC_SECURID_AUTH_FAILURE;
 194
 195
 196                 }
 197         } else {
 198                 /* existing session found */
 199                 RDEBUG("Continuing previous session found for user [%s]",username);
 200
 201                 /* continue previous session */
 202                 switch (pSecurid_session->securidSessionState) {
 203                 case NEXT_CODE_REQUIRED_STATE:
 204                         DEBUG2("Securid NEXT_CODE_REQUIRED_STATE: User [%s]",username);
 205                         /* next token code mode */
 206
 207                         acmRet = SD_Next(pSecurid_session->sdiHandle, (SD_CHAR*)passcode);
 208                         if (acmRet == ACM_OK) {
 209                                 radlog(L_INFO,"Next SecurID token accepted for [%s].",pSecurid_session->identity);
 210                                 rc = RC_SECURID_AUTH_SUCCESS;
 211
 212                         } else {
 213                                 radlog(L_INFO,"SecurID: Next token rejected for [%s].",pSecurid_session->identity);
 214                                 rc = RC_SECURID_AUTH_FAILURE;
 215                         }
 216
 217                         /* deallocate session */
 218                         securid_session_free(inst,request,pSecurid_session);
 219                         return rc;
 220
 221                 case NEW_PIN_REQUIRED_STATE:
 222                         RDEBUG2("SecurID NEW_PIN_REQUIRED_STATE for %s",
 223                                 username);
 224
 225                         /* save the previous pin */
 226                         if (pSecurid_session->pin) {
 227                                 free(pSecurid_session->pin);
 228                                 pSecurid_session->pin = NULL;
 229                         }
 230                         pSecurid_session->pin = strdup(passcode);
 231
 232                         strlcpy(replyMsgBuffer,"\r\n                 Please re-enter new PIN:", replyMsgBufferSize);
 233
 234                         /* set next state */
 235                         pSecurid_session->securidSessionState = NEW_PIN_USER_CONFIRM_STATE;
 236
 237                         /* insert the updated session in the session list */
 238                         securid_sessionlist_add(inst,request,pSecurid_session);
 239                         return RC_SECURID_AUTH_CHALLENGE;
 240
 241                 case NEW_PIN_USER_CONFIRM_STATE:
 242                         RDEBUG2("SecurID NEW_PIN_USER_CONFIRM_STATE: User [%s]",username);
 243                         /* compare previous pin and current pin */
 244                         if (!pSecurid_session->pin || strcmp(pSecurid_session->pin,passcode)) {
 245                                 RDEBUG2("Pin confirmation failed. Pins do not match [%s] and [%s]",
 246                                        SAFE_STR(pSecurid_session->pin),
 247                                        passcode);
 248                                 /* pins do not match */
 249
 250                                 /* challenge the user again */
 251                                 AceGetPinParams(pSecurid_session->sdiHandle, &pinParams);
 252                                 if (pinParams.Alphanumeric) {
 253                                         strcpy(format, "alphanumeric characters");
 254                                 } else {
 255                                         strcpy(format, "digits");
 256                                 }
 257                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 258                                          " \r\n   Pins do not match--Please try again.\r\n   Enter your new PIN of %d to %d %s,\r\n                or\r\n   <Ctrl-D> to cancel the New PIN procedure:",
 259                                          pinParams.Min, pinParams.Max, format);
 260
 261                                 pSecurid_session->securidSessionState = NEW_PIN_REQUIRED_STATE;
 262
 263                                 /* insert the updated session in the session list */
 264                                 securid_sessionlist_add(inst,request,pSecurid_session);
 265                                 rc = RC_SECURID_AUTH_CHALLENGE;
 266
 267                         } else {
 268                                 /* pins match */
 269                                 RDEBUG2("Pin confirmation succeeded. Pins match");
 270                                 acmRet = SD_Pin(pSecurid_session->sdiHandle, (SD_CHAR*)passcode);
 271                                 if (acmRet == ACM_NEW_PIN_ACCEPTED) {
 272                                         RDEBUG("New SecurID pin accepted for %s.",pSecurid_session->identity);
 273
 274                                         pSecurid_session->securidSessionState = NEW_PIN_AUTH_VALIDATE_STATE;
 275
 276                                         /* insert the updated session in the session list */
 277                                         securid_sessionlist_add(inst,request,pSecurid_session);
 278
 279                                         rc = RC_SECURID_AUTH_CHALLENGE;
 280                                         strlcpy(replyMsgBuffer," \r\n\r\nWait for the code on your card to change, then enter new PIN and TokenCode\r\n\r\nEnter PASSCODE:", replyMsgBufferSize);
 281                                 } else {
 282                                         RDEBUG("SecurID: New SecurID pin rejected for %s.",pSecurid_session->identity);
 283                                         SD_Pin(pSecurid_session->sdiHandle, (SD_CHAR*)"");  /* cancel PIN */
 284
 285
 286                                         rc = RC_SECURID_AUTH_FAILURE;
 287
 288                                         /* deallocate session */
 289                                         securid_session_free(inst, request,
 290                                                              pSecurid_session);
 291                                 }
 292                         }
 293                         return rc;
 294                 case NEW_PIN_AUTH_VALIDATE_STATE:
 295                         acmRet = SD_Check(pSecurid_session->sdiHandle, (SD_CHAR*)passcode, (SD_CHAR*)username);
 296                         if (acmRet == ACM_OK) {
 297                                 RDEBUG("New SecurID passcode accepted for %s.",
 298                                        pSecurid_session->identity);
 299                                 rc = RC_SECURID_AUTH_SUCCESS;
 300
 301                         } else {
 302                                 radlog(L_INFO,"SecurID: New passcode rejected for [%s].",pSecurid_session->identity);
 303                                 rc = RC_SECURID_AUTH_FAILURE;
 304                         }
 305
 306                         /* deallocate session */
 307                         securid_session_free(inst,request,pSecurid_session);
 308
 309                         return rc;
 310                 case NEW_PIN_SYSTEM_ACCEPT_STATE:
 311                         if (!strcmp(passcode, "y")) {
 312                                 AceGetSystemPin(pSecurid_session->sdiHandle, newPin);
 313
 314                                 /* Save the PIN for the next session
 315                                  * continuation */
 316                                 if (pSecurid_session->pin) {
 317                                         free(pSecurid_session->pin);
 318                                         pSecurid_session->pin = NULL;
 319                                 }
 320                                 pSecurid_session->pin = strdup(newPin);
 321
 322                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 323                                          "\r\nYour new PIN is: %s\r\nDo you accept this [y/n]?",
 324                                          newPin);
 325                                 pSecurid_session->securidSessionState = NEW_PIN_SYSTEM_CONFIRM_STATE;
 326
 327                                 /* insert the updated session in the
 328                                  * session list */
 329                                 securid_sessionlist_add(inst, request,
 330                                                         pSecurid_session);
 331
 332                                 rc = RC_SECURID_AUTH_CHALLENGE;
 333
 334                         } else {
 335                                 SD_Pin(pSecurid_session->sdiHandle, (SD_CHAR*)""); //Cancel new PIN
 336
 337                                 /* deallocate session */
 338                                 securid_session_free(inst, request,
 339                                                      pSecurid_session);
 340
 341                                 rc = RC_SECURID_AUTH_FAILURE;
 342                         }
 343
 344                         return rc;
 345
 346                 case NEW_PIN_SYSTEM_CONFIRM_STATE:
 347                         acmRet = SD_Pin(pSecurid_session->sdiHandle, (SD_CHAR*)pSecurid_session->pin);
 348                         if (acmRet == ACM_NEW_PIN_ACCEPTED) {
 349                                 strlcpy(replyMsgBuffer," \r\n\r\nPin Accepted. Wait for the code on your card to change, then enter new PIN and TokenCode\r\n\r\nEnter PASSCODE:",replyMsgBufferSize);
 350                                 pSecurid_session->securidSessionState = NEW_PIN_AUTH_VALIDATE_STATE;
 351                                 /* insert the updated session in the session list */
 352                                 securid_sessionlist_add(inst,request,pSecurid_session);
 353                                 rc = RC_SECURID_AUTH_CHALLENGE;
 354
 355                         } else {
 356                                 SD_Pin(pSecurid_session->sdiHandle, (SD_CHAR*)""); //Cancel new PIN
 357                                 strlcpy(replyMsgBuffer," \r\n\r\nPin Rejected. Wait for the code on your card to change, then try again.\r\n\r\nEnter PASSCODE:",replyMsgBufferSize);
 358                                 /* deallocate session */
 359                                 securid_session_free(inst, request,
 360                                                      pSecurid_session);
 361                                 rc = RC_SECURID_AUTH_FAILURE;
 362                         }
 363
 364                         return rc;
 365
 366                         /* USER_SELECTABLE state should be implemented to preserve compatibility with AM 6.x servers, which can return this state */
 367                 case NEW_PIN_USER_SELECT_STATE:
 368                         if (!strcmp(passcode, "y")) {
 369                                 /* User has opted for a system-generated PIN */
 370                                 AceGetSystemPin(pSecurid_session->sdiHandle, newPin);
 371                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 372                                          "\r\nYour new PIN is: %s\r\nDo you accept this [y/n]?",
 373                                          newPin);
 374                                 pSecurid_session->securidSessionState = NEW_PIN_SYSTEM_CONFIRM_STATE;
 375
 376                                 /* insert the updated session in the session list */
 377                                 securid_sessionlist_add(inst, request,
 378                                                         pSecurid_session);
 379                                 rc = RC_SECURID_AUTH_CHALLENGE;
 380
 381                         } else {
 382                                 /* User has opted for a user-defined PIN */
 383                                 AceGetPinParams(pSecurid_session->sdiHandle,
 384                                                 &pinParams);
 385                                 if (pinParams.Alphanumeric) {
 386                                         strcpy(format, "alphanumeric characters");
 387                                 } else {
 388                                         strcpy(format, "digits");
 389                                 }
 390
 391                                 snprintf(replyMsgBuffer, replyMsgBufferSize,
 392                                          " \r\n   Enter your new PIN of %d to %d %s,\r\n                or\r\n   <Ctrl-D> to cancel the New PIN procedure:",
 393                                          pinParams.Min, pinParams.Max, format);
 394                                 pSecurid_session->securidSessionState = NEW_PIN_REQUIRED_STATE;
 395
 396                                 /* insert the updated session in the session list */
 397                                 securid_sessionlist_add(inst, request,
 398                                                         pSecurid_session);
 399                                 rc = RC_SECURID_AUTH_CHALLENGE;
 400                         }
 401
 402                         return rc;
 403
 404                 default:
 405                         radlog(L_ERR, "rlm_securid: Invalid session state %d for user [%s]",
 406                                pSecurid_session->securidSessionState,
 407                                username);
 408                         break;
 409                 }
 410         }
 411
 412         return 0;
 413
 414 }
 415
 416 /******************************************/
 417 static int securid_detach(void *instance)
 418 {
 419         rlm_securid_t *inst = (rlm_securid_t *) instance;
 420
 421         /* delete session tree */
 422         if (inst->session_tree) {
 423                 rbtree_free(inst->session_tree);
 424                 inst->session_tree = NULL;
 425         }
 426
 427         pthread_mutex_destroy(&(inst->session_mutex));
 428
 429         return 0;
 430 }
 431
 432
 433 static rlm_rcode_t securid_instantiate(CONF_SECTION *conf, void **instance)
 434 {
 435         rlm_securid_t *inst;
 436
 437         /* Set up a storage area for instance data */
 438         *instance = inst = talloc_zero(conf, rlm_securid_t);
 439         if (!inst) return -1;
 440
 441         /* If the configuration parameters can't be parsed, then fail. */
 442         if (cf_section_parse(conf, inst, module_config) < 0) {
 443                 radlog(L_ERR, "rlm_securid: Unable to parse configuration section.");
 444                 return -1;
 445         }
 446
 447         /*
 448          *      Lookup sessions in the tree.  We don't free them in
 449          *      the tree, as that's taken care of elsewhere...
 450          */
 451         inst->session_tree = rbtree_create(securid_session_cmp, NULL, 0);
 452         if (!inst->session_tree) {
 453                 radlog(L_ERR, "rlm_securid: Cannot initialize session tree.");
 454                 return -1;
 455         }
 456
 457         pthread_mutex_init(&(inst->session_mutex), NULL);
 458         return 0;
 459 }
 460
 461
 462 /*
 463  *      Authenticate the user via one of any well-known password.
 464  */
 465 static int securid_authenticate(void *instance, REQUEST *request)
 466 {
 467         int rcode;
 468         rlm_securid_t *inst = instance;
 469         VALUE_PAIR *module_fmsg_vp;
 470         VALUE_PAIR *vp;
 471         char  buffer[MAX_STRING_LEN]="";
 472         const char *username=NULL, *password=NULL;
 473         char module_fmsg[MAX_STRING_LEN]="";
 474
 475         /*
 476          *      We can only authenticate user requests which HAVE
 477          *      a User-Name attribute.
 478          */
 479         if (!request->username) {
 480                 radlog(L_AUTH, "rlm_securid: Attribute \"User-Name\" is required for authentication.");
 481                 return RLM_MODULE_INVALID;
 482         }
 483
 484         if (!request->password) {
 485                 radlog_request(L_AUTH, 0, request, "Attribute \"Password\" is required for authentication.");
 486                 return RLM_MODULE_INVALID;
 487         }
 488
 489         /*
 490          *      Clear-text passwords are the only ones we support.
 491          */
 492         if (request->password->da->attr != PW_USER_PASSWORD) {
 493                 radlog_request(L_AUTH, 0, request, "Attribute \"User-Password\" is required for authentication. Cannot use \"%s\".", request->password->da->name);
 494                 return RLM_MODULE_INVALID;
 495         }
 496
 497         /*
 498          *      The user MUST supply a non-zero-length password.
 499          */
 500         if (request->password->length == 0) {
 501                 snprintf(module_fmsg,sizeof(module_fmsg),"rlm_securid: empty password supplied");
 502                 module_fmsg_vp = pairmake("Module-Failure-Message", module_fmsg, T_OP_EQ);
 503                 pairadd(&request->packet->vps, module_fmsg_vp);
 504                 return RLM_MODULE_INVALID;
 505         }
 506
 507         /*
 508          *      shortcuts
 509          */
 510         username = request->username->vp_strvalue;
 511         password = request->password->vp_strvalue;
 512
 513         RDEBUG("User [%s] login attempt with password [%s]",
 514                username, password);
 515
 516         rcode = securidAuth(inst, request, username, password,
 517                             buffer, sizeof(buffer));
 518
 519         switch (rcode) {
 520         case RC_SECURID_AUTH_SUCCESS:
 521                 rcode = RLM_MODULE_OK;
 522                 break;
 523
 524         case RC_SECURID_AUTH_CHALLENGE:
 525                 /* reply with Access-challenge message code (11) */
 526
 527                 /* Generate Prompt attribute */
 528                 vp = paircreate(PW_PROMPT, 0);
 529
 530                 rad_assert(vp != NULL);
 531                 vp->vp_integer = 0; /* no echo */
 532                 pairadd(&request->reply->vps, vp);
 533
 534                 /* Mark the packet as a Acceess-Challenge Packet */
 535                 request->reply->code = PW_ACCESS_CHALLENGE;
 536                 RDEBUG("Sending Access-Challenge.");
 537                 rcode = RLM_MODULE_HANDLED;
 538                 break;
 539
 540         case RC_SECURID_AUTH_FAILURE:
 541         case RC_SECURID_AUTH_ACCESS_DENIED_FAILURE:
 542         case RC_SECURID_AUTH_INVALID_SERVER_FAILURE:
 543         default:
 544                 rcode = RLM_MODULE_REJECT;
 545                 break;
 546         }
 547
 548         if (*buffer) {
 549                 /* Generate Reply-Message attribute with reply message data */
 550                 vp = pairmake("Reply-Message", buffer, T_OP_EQ);
 551
 552                 /* make sure message ends with '\0' */
 553                 if (vp->length < (int) sizeof(vp->vp_strvalue)) {
 554                         vp->vp_strvalue[vp->length] = '\0';
 555                         vp->length++;
 556                 }
 557                 pairadd(&request->reply->vps,vp);
 558         }
 559         return rcode;
 560 }
 561
 562
 563 /*
 564  *      The module name should be the only globally exported symbol.
 565  *      That is, everything else should be 'static'.
 566  *
 567  *      If the module needs to temporarily modify it's instantiation
 568  *      data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
 569  *      The server will then take care of ensuring that the module
 570  *      is single-threaded.
 571  */
 572 module_t rlm_securid = {
 573         RLM_MODULE_INIT,
 574         "securid",
 575         RLM_TYPE_CHECK_CONFIG_SAFE | RLM_TYPE_HUP_SAFE,         /* type */
 576         securid_instantiate,            /* instantiation */
 577         securid_detach,                 /* detach */
 578         {
 579                 securid_authenticate,   /* authentication */
 580                 NULL,                   /* authorization */
 581                 NULL,                   /* preaccounting */
 582                 NULL,                   /* accounting */
 583                 NULL,                   /* checksimul */
 584                 NULL,                   /* pre-proxy */
 585                 NULL,                   /* post-proxy */
 586                 NULL                    /* post-auth */
 587         },
 588 };