src/modules/rlm_perl/rlm_perl.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_perl.c
  19  * @brief Translates requests between the server an a perl interpreter.
  20  *
  21  * @copyright 2002,2006  The FreeRADIUS server project
  22  * @copyright 2002  Boian Jordanov <bjordanov@orbitel.bg>
  23  */
  24 RCSID("$Id$")
  25
  26 #include <freeradius-devel/radiusd.h>
  27 #include <freeradius-devel/modules.h>
  28 #include <freeradius-devel/rad_assert.h>
  29
  30 #ifdef INADDR_ANY
  31 #undef INADDR_ANY
  32 #endif
  33 #include <EXTERN.h>
  34 #include <perl.h>
  35 #include <XSUB.h>
  36 #include <dlfcn.h>
  37 #include <semaphore.h>
  38
  39 #ifdef __APPLE__
  40 extern char **environ;
  41 #endif
  42
  43 /*
  44  *      Define a structure for our module configuration.
  45  *
  46  *      These variables do not need to be in a structure, but it's
  47  *      a lot cleaner to do so, and a pointer to the structure can
  48  *      be used as the instance handle.
  49  */
  50 typedef struct rlm_perl_t {
  51         /* Name of the perl module */
  52         char    *module;
  53
  54         /* Name of the functions for each module method */
  55         char    *func_authorize;
  56         char    *func_authenticate;
  57         char    *func_accounting;
  58         char    *func_start_accounting;
  59         char    *func_stop_accounting;
  60         char    *func_preacct;
  61         char    *func_checksimul;
  62         char    *func_detach;
  63         char    *func_xlat;
  64 #ifdef WITH_PROXY
  65         char    *func_pre_proxy;
  66         char    *func_post_proxy;
  67 #endif
  68         char    *func_post_auth;
  69 #ifdef WITH_COA
  70         char    *func_recv_coa;
  71         char    *func_send_coa;
  72 #endif
  73         char    *xlat_name;
  74         char    *perl_flags;
  75         PerlInterpreter *perl;
  76         pthread_key_t   *thread_key;
  77
  78         pthread_mutex_t clone_mutex;
  79 } rlm_perl_t;
  80 /*
  81  *      A mapping of configuration file names to internal variables.
  82  */
  83 #define RLM_PERL_CONF(_x) { "func_" Stringify(_x), PW_TYPE_STRING_PTR, \
  84                         offsetof(rlm_perl_t,func_##_x), NULL, Stringify(_x)}
  85
  86 static const CONF_PARSER module_config[] = {
  87         { "module",  PW_TYPE_FILENAME,
  88           offsetof(rlm_perl_t,module), NULL,  "module"},
  89
  90         RLM_PERL_CONF(authorize),
  91         RLM_PERL_CONF(authenticate),
  92         RLM_PERL_CONF(post_auth),
  93         RLM_PERL_CONF(accounting),
  94         RLM_PERL_CONF(preacct),
  95         RLM_PERL_CONF(checksimul),
  96         RLM_PERL_CONF(detach),
  97         RLM_PERL_CONF(xlat),
  98
  99 #ifdef WITH_PROXY
 100         RLM_PERL_CONF(pre_proxy),
 101         RLM_PERL_CONF(post_proxy),
 102 #endif
 103 #ifdef WITH_COA
 104         RLM_PERL_CONF(recv_coa),
 105         RLM_PERL_CONF(send_coa),
 106 #endif
 107         { "perl_flags", PW_TYPE_STRING_PTR,
 108           offsetof(rlm_perl_t,perl_flags), NULL, NULL},
 109
 110         { "func_start_accounting", PW_TYPE_STRING_PTR,
 111           offsetof(rlm_perl_t,func_start_accounting), NULL, NULL},
 112
 113         { "func_stop_accounting", PW_TYPE_STRING_PTR,
 114           offsetof(rlm_perl_t,func_stop_accounting), NULL, NULL},
 115
 116         { NULL, -1, 0, NULL, NULL }             /* end the list */
 117 };
 118
 119 /*
 120  * man perlembed
 121  */
 122 EXTERN_C void boot_DynaLoader(pTHX_ CV* cv);
 123
 124 #ifdef USE_ITHREADS
 125 #define dl_librefs "DynaLoader::dl_librefs"
 126 #define dl_modules "DynaLoader::dl_modules"
 127 static void rlm_perl_clear_handles(pTHX)
 128 {
 129         AV *librefs = get_av(dl_librefs, FALSE);
 130         if (librefs) {
 131                 av_clear(librefs);
 132         }
 133 }
 134
 135 static void **rlm_perl_get_handles(pTHX)
 136 {
 137         I32 i;
 138         AV *librefs = get_av(dl_librefs, FALSE);
 139         AV *modules = get_av(dl_modules, FALSE);
 140         void **handles;
 141
 142         if (!librefs) return NULL;
 143
 144         if (!(AvFILL(librefs) >= 0)) {
 145                 return NULL;
 146         }
 147
 148         handles = (void **)rad_malloc(sizeof(void *) * (AvFILL(librefs)+2));
 149
 150         for (i=0; i<=AvFILL(librefs); i++) {
 151                 void *handle;
 152                 SV *handle_sv = *av_fetch(librefs, i, FALSE);
 153
 154                 if(!handle_sv) {
 155                         radlog(L_ERR,
 156                                "Could not fetch $%s[%d]!\n",
 157                                dl_librefs, (int)i);
 158                         continue;
 159                 }
 160                 handle = (void *)SvIV(handle_sv);
 161
 162                 if (handle) {
 163                         handles[i] = handle;
 164                 }
 165         }
 166
 167         av_clear(modules);
 168         av_clear(librefs);
 169
 170         handles[i] = (void *)0;
 171
 172         return handles;
 173 }
 174
 175 static void rlm_perl_close_handles(void **handles)
 176 {
 177         int i;
 178
 179         if (!handles) {
 180                 return;
 181         }
 182
 183         for (i=0; handles[i]; i++) {
 184                 DEBUG("close %p\n", handles[i]);
 185                 dlclose(handles[i]);
 186         }
 187
 188         free(handles);
 189 }
 190
 191 static void rlm_perl_destruct(PerlInterpreter *perl)
 192 {
 193         dTHXa(perl);
 194
 195         PERL_SET_CONTEXT(perl);
 196
 197         PL_perl_destruct_level = 2;
 198
 199         PL_origenviron = environ;
 200
 201 W_SHADOWDEC_OFF
 202         {
 203                 dTHXa(perl);
 204         }
 205 W_RST
 206         /*
 207          * FIXME: This shouldn't happen
 208          *
 209          */
 210         while (PL_scopestack_ix > 1 ){
 211                 LEAVE;
 212         }
 213
 214         perl_destruct(perl);
 215         perl_free(perl);
 216 }
 217
 218 static void rlm_destroy_perl(PerlInterpreter *perl)
 219 {
 220         void    **handles;
 221
 222         dTHXa(perl);
 223         PERL_SET_CONTEXT(perl);
 224
 225         handles = rlm_perl_get_handles(aTHX);
 226         if (handles) rlm_perl_close_handles(handles);
 227         rlm_perl_destruct(perl);
 228 }
 229
 230 /* Create Key */
 231 static void rlm_perl_make_key(pthread_key_t *key)
 232 {
 233         pthread_key_create(key, (void*)rlm_destroy_perl);
 234 }
 235
 236 static PerlInterpreter *rlm_perl_clone(PerlInterpreter *perl, pthread_key_t *key)
 237 {
 238         int ret;
 239
 240         PerlInterpreter *interp;
 241         UV clone_flags = 0;
 242
 243         PERL_SET_CONTEXT(perl);
 244
 245         interp = pthread_getspecific(*key);
 246         if (interp) return interp;
 247
 248         interp = perl_clone(perl, clone_flags);
 249         {
 250                 dTHXa(interp);
 251         }
 252 #if PERL_REVISION >= 5 && PERL_VERSION <8
 253         call_pv("CLONE",0);
 254 #endif
 255         ptr_table_free(PL_ptr_table);
 256         PL_ptr_table = NULL;
 257
 258         PERL_SET_CONTEXT(aTHX);
 259         rlm_perl_clear_handles(aTHX);
 260
 261         ret = pthread_setspecific(*key, interp);
 262         if (ret != 0) {
 263                 radlog(L_DBG,"rlm_perl: Failed associating interpretor "
 264                        "with thread %s", strerror(ret));
 265
 266                 rlm_perl_destruct(interp);
 267                 return NULL;
 268         }
 269
 270         return interp;
 271 }
 272 #endif
 273
 274 static void xs_init(pTHX)
 275 {
 276         const char *file = __FILE__;
 277
 278         /* DynaLoader is a special case */
 279         newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
 280
 281 }
 282 /*
 283  *
 284  * This is wrapper for radlog
 285  * Now users can call radiusd::radlog(level,msg) wich is the same
 286  * calling radlog from C code.
 287  * Boyan
 288  */
 289 static XS(XS_radiusd_radlog)
 290 {
 291         dXSARGS;
 292         if (items !=2)
 293                 croak("Usage: radiusd::radlog(level, message)");
 294         {
 295                 int     level;
 296                 char    *msg;
 297
 298                 level = (int) SvIV(ST(0));
 299                 msg   = (char *) SvPV(ST(1), PL_na);
 300
 301                 /*
 302                  *      Because 'msg' is a 'char *', we don't want '%s', etc.
 303                  *      in it to give us printf-style vulnerabilities.
 304                  */
 305                 radlog(level, "rlm_perl: %s", msg);
 306         }
 307         XSRETURN_NO;
 308 }
 309
 310 /*
 311  * The xlat function
 312  */
 313 static size_t perl_xlat(void *instance, REQUEST *request, const char *fmt,
 314                         char *out, size_t freespace)
 315 {
 316
 317         rlm_perl_t      *inst= (rlm_perl_t *) instance;
 318         PerlInterpreter *perl;
 319         char            *expanded, *ptr, *tmp;
 320         int             count;
 321         size_t          ret = 0;
 322         STRLEN          n_a;
 323
 324         expanded = fmt;         /* FIXME */
 325
 326 #ifndef WITH_ITHREADS
 327         perl = inst->perl;
 328 #else
 329         perl = rlm_perl_clone(inst->perl,inst->thread_key);
 330         {
 331                 dTHXa(perl);
 332         }
 333 #endif
 334         PERL_SET_CONTEXT(perl);
 335         {
 336                 dSP;
 337                 ENTER;SAVETMPS;
 338
 339                 ptr = strtok(expanded, " ");
 340
 341                 PUSHMARK(SP);
 342
 343                 while (ptr != NULL) {
 344                         XPUSHs(sv_2mortal(newSVpv(ptr,0)));
 345                         ptr = strtok(NULL, " ");
 346                 }
 347
 348                 PUTBACK;
 349
 350                 count = call_pv(inst->func_xlat, G_SCALAR | G_EVAL);
 351
 352                 SPAGAIN;
 353                 if (SvTRUE(ERRSV)) {
 354                         RDEBUGE("Exit %s", SvPV(ERRSV,n_a));
 355                         (void)POPs;
 356                 } else if (count > 0) {
 357                         tmp = POPp;
 358                         strlcpy(out, tmp, freespace);
 359                         ret = strlen(out);
 360
 361                         RDEBUG("Len is %zu , out is %s freespace is %zu", ret, out, freespace);
 362                 }
 363
 364                 PUTBACK ;
 365                 FREETMPS ;
 366                 LEAVE ;
 367
 368         }
 369
 370         talloc_free(expanded);
 371
 372         return ret;
 373 }
 374 /*
 375  *      Do any per-module initialization that is separate to each
 376  *      configured instance of the module.  e.g. set up connections
 377  *      to external databases, read configuration files, set up
 378  *      dictionary entries, etc.
 379  *
 380  *      If configuration information is given in the config section
 381  *      that must be referenced in later calls, store a handle to it
 382  *      in *instance otherwise put a null pointer there.
 383  *
 384  *      Boyan:
 385  *      Setup a hashes wich we will use later
 386  *      parse a module and give him a chance to live
 387  *
 388  */
 389 static int mod_instantiate(CONF_SECTION *conf, void *instance)
 390 {
 391         rlm_perl_t       *inst = instance;
 392         AV              *end_AV;
 393
 394         char **embed;
 395         char **envp = NULL;
 396         const char *xlat_name;
 397         int exitstatus = 0, argc=0;
 398
 399         MEM(embed = talloc_zero_array(inst, char *, 4));
 400
 401         /*
 402          *      Create pthread key. This key will be stored in instance
 403          */
 404
 405 #ifdef USE_ITHREADS
 406         pthread_mutex_init(&inst->clone_mutex, NULL);
 407
 408         inst->thread_key = rad_malloc(sizeof(*inst->thread_key));
 409         memset(inst->thread_key,0,sizeof(*inst->thread_key));
 410
 411         rlm_perl_make_key(inst->thread_key);
 412 #endif
 413
 414         char arg[] = "0";
 415
 416         embed[0] = NULL;
 417         if (inst->perl_flags) {
 418                 embed[1] = inst->perl_flags;
 419                 embed[2] = inst->module;
 420                 embed[3] = arg;
 421                 argc = 4;
 422         } else {
 423                 embed[1] = inst->module;
 424                 embed[2] = arg;
 425                 argc = 3;
 426         }
 427
 428         PERL_SYS_INIT3(&argc, &embed, &envp);
 429
 430         if ((inst->perl = perl_alloc()) == NULL) {
 431                 radlog(L_ERR, "rlm_perl: No memory for allocating new perl !");
 432                 return (-1);
 433         }
 434
 435         perl_construct(inst->perl);
 436
 437 #ifdef USE_ITHREADS
 438         PL_perl_destruct_level = 2;
 439
 440         {
 441                 dTHXa(inst->perl);
 442         }
 443         PERL_SET_CONTEXT(inst->perl);
 444 #endif
 445
 446 #if PERL_REVISION >= 5 && PERL_VERSION >=8
 447         PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
 448 #endif
 449
 450         exitstatus = perl_parse(inst->perl, xs_init, argc, embed, NULL);
 451
 452         end_AV = PL_endav;
 453         PL_endav = Nullav;
 454
 455         newXS("radiusd::radlog",XS_radiusd_radlog, "rlm_perl");
 456
 457         if(!exitstatus) {
 458                 exitstatus = perl_run(inst->perl);
 459         } else {
 460                 radlog(L_ERR,"rlm_perl: perl_parse failed: %s not found or has syntax errors. \n", inst->module);
 461                 return (-1);
 462         }
 463
 464         PL_endav = end_AV;
 465
 466         xlat_name = cf_section_name2(conf);
 467         if (!xlat_name)
 468                 xlat_name = cf_section_name1(conf);
 469         if (xlat_name) {
 470                 xlat_register(xlat_name, perl_xlat, NULL, inst);
 471         }
 472
 473         return 0;
 474 }
 475
 476 /*
 477  *      get the vps and put them in perl hash
 478  *      If one VP have multiple values it is added as array_ref
 479  *      Example for this is Cisco-AVPair that holds multiple values.
 480  *      Which will be available as array_ref in $RAD_REQUEST{'Cisco-AVPair'}
 481  */
 482 static void perl_store_vps(TALLOC_CTX *ctx, VALUE_PAIR *vps, HV *rad_hv)
 483 {
 484         VALUE_PAIR *head, *sublist;
 485         AV *av;
 486         const char *name;
 487         char namebuf[256];
 488         char buffer[1024];
 489         int len;
 490
 491         hv_undef(rad_hv);
 492
 493         /*
 494          *      Copy the valuepair list so we can remove attributes
 495          *      we've already processed.  This is a horrible hack to
 496          *      get around various other stupidity.
 497          */
 498         head = paircopy(ctx, vps);
 499
 500         while (head) {
 501                 /*
 502                  *      Tagged attributes are added to the hash with name
 503                  *      <attribute>:<tag>, others just use the normal attribute
 504                  *      name as the key.
 505                  */
 506                 if (head->da->flags.has_tag && (head->tag != 0)) {
 507                         snprintf(namebuf, sizeof(namebuf), "%s:%d",
 508                                  head->da->name, head->tag);
 509                         name = namebuf;
 510                 } else {
 511                         name = head->da->name;
 512                 }
 513
 514                 /*
 515                  *      Create a new list with all the attributes like this one
 516                  *      which are in the same tag group.
 517                  */
 518                 sublist = NULL;
 519                 pairfilter(ctx, &sublist, &head, head->da->attr, head->da->vendor, head->tag);
 520
 521                 /*
 522                  *      Attribute has multiple values
 523                  */
 524                 if (sublist->next) {
 525                         VALUE_PAIR *vp;
 526
 527                         av = newAV();
 528                         for (vp = sublist; vp; vp = vp->next) {
 529                                 len = vp_prints_value(buffer, sizeof(buffer), vp, FALSE);
 530                                 av_push(av, newSVpv(buffer, len));
 531                         }
 532                         (void)hv_store(rad_hv, name, strlen(name), newRV_noinc((SV *)av), 0);
 533
 534                         /*
 535                          *      Attribute has a single value, so its value just gets
 536                          *      added to the hash.
 537                          */
 538                 } else {
 539                         len = vp_prints_value(buffer, sizeof(buffer), sublist, FALSE);
 540                         (void)hv_store(rad_hv, name, strlen(name), newSVpv(buffer, len), 0);
 541                 }
 542
 543                 pairfree(&sublist);
 544         }
 545
 546         rad_assert(!head);
 547 }
 548
 549 /*
 550  *
 551  *     Verify that a Perl SV is a string and save it in FreeRadius
 552  *     Value Pair Format
 553  *
 554  */
 555 static int pairadd_sv(TALLOC_CTX *ctx, VALUE_PAIR **vps, char *key, SV *sv, FR_TOKEN op)
 556 {
 557         char        *val;
 558         VALUE_PAIR      *vp;
 559
 560         if (SvOK(sv)) {
 561                 val = SvPV_nolen(sv);
 562                 vp = pairmake(ctx, vps, key, val, op);
 563                 if (vp != NULL) {
 564                         radlog(L_DBG,
 565                                "rlm_perl: Added pair %s = %s", key, val);
 566                         return 1;
 567                 } else {
 568                         radlog(L_DBG,
 569                                "rlm_perl: ERROR: Failed to create pair %s = %s",
 570                                key, val);
 571                 }
 572         }
 573         return 0;
 574 }
 575
 576 /*
 577  *     Boyan :
 578  *     Gets the content from hashes
 579  */
 580 static int get_hv_content(TALLOC_CTX *ctx, HV *my_hv, VALUE_PAIR **vps)
 581 {
 582         SV              *res_sv, **av_sv;
 583         AV              *av;
 584         char            *key;
 585         I32             key_len, len, i, j;
 586         int             ret=0;
 587
 588         *vps = NULL;
 589         for (i = hv_iterinit(my_hv); i > 0; i--) {
 590                 res_sv = hv_iternextsv(my_hv,&key,&key_len);
 591                 if (SvROK(res_sv) && (SvTYPE(SvRV(res_sv)) == SVt_PVAV)) {
 592                         av = (AV*)SvRV(res_sv);
 593                         len = av_len(av);
 594                         for (j = 0; j <= len; j++) {
 595                                 av_sv = av_fetch(av, j, 0);
 596                                 ret = pairadd_sv(ctx, vps, key, *av_sv, T_OP_ADD) + ret;
 597                         }
 598                 } else ret = pairadd_sv(ctx, vps, key, res_sv, T_OP_EQ) + ret;
 599         }
 600
 601         return ret;
 602 }
 603
 604 /*
 605  *      Call the function_name inside the module
 606  *      Store all vps in hashes %RAD_CHECK %RAD_REPLY %RAD_REQUEST
 607  *
 608  */
 609 static int do_perl(void *instance, REQUEST *request, char *function_name)
 610 {
 611
 612         rlm_perl_t      *inst = instance;
 613         VALUE_PAIR      *vp;
 614         int             exitstatus=0, count;
 615         STRLEN          n_a;
 616
 617         HV              *rad_reply_hv;
 618         HV              *rad_check_hv;
 619         HV              *rad_config_hv;
 620         HV              *rad_request_hv;
 621 #ifdef WITH_PROXY
 622         HV              *rad_request_proxy_hv;
 623         HV              *rad_request_proxy_reply_hv;
 624 #endif
 625
 626         /*
 627          *      Radius has told us to call this function, but none
 628          *      is defined.
 629          */
 630         if (!function_name) return RLM_MODULE_FAIL;
 631
 632 #ifdef USE_ITHREADS
 633         pthread_mutex_lock(&inst->clone_mutex);
 634
 635         PerlInterpreter *interp;
 636
 637         interp = rlm_perl_clone(inst->perl,inst->thread_key);
 638         {
 639                 dTHXa(interp);
 640                 PERL_SET_CONTEXT(interp);
 641         }
 642
 643         pthread_mutex_unlock(&inst->clone_mutex);
 644 #else
 645         PERL_SET_CONTEXT(inst->perl);
 646 #endif
 647
 648         {
 649                 dSP;
 650
 651                 ENTER;
 652                 SAVETMPS;
 653
 654                 rad_reply_hv = get_hv("RAD_REPLY",1);
 655                 rad_check_hv = get_hv("RAD_CHECK",1);
 656                 rad_config_hv = get_hv("RAD_CONFIG",1);
 657                 rad_request_hv = get_hv("RAD_REQUEST",1);
 658
 659                 perl_store_vps(request->reply, request->reply->vps, rad_reply_hv);
 660                 perl_store_vps(request, request->config_items, rad_check_hv);
 661                 perl_store_vps(request->packet, request->packet->vps, rad_request_hv);
 662                 perl_store_vps(request, request->config_items, rad_config_hv);
 663
 664 #ifdef WITH_PROXY
 665                 rad_request_proxy_hv = get_hv("RAD_REQUEST_PROXY",1);
 666                 rad_request_proxy_reply_hv = get_hv("RAD_REQUEST_PROXY_REPLY",1);
 667
 668                 if (request->proxy != NULL) {
 669                         perl_store_vps(request->proxy, request->proxy->vps, rad_request_proxy_hv);
 670                 } else {
 671                         hv_undef(rad_request_proxy_hv);
 672                 }
 673
 674                 if (request->proxy_reply !=NULL) {
 675                         perl_store_vps(request->proxy_reply, request->proxy_reply->vps, rad_request_proxy_reply_hv);
 676                 } else {
 677                         hv_undef(rad_request_proxy_reply_hv);
 678                 }
 679 #endif
 680
 681                 PUSHMARK(SP);
 682                 /*
 683                  * This way %RAD_xx can be pushed onto stack as sub parameters.
 684                  * XPUSHs( newRV_noinc((SV *)rad_request_hv) );
 685                  * XPUSHs( newRV_noinc((SV *)rad_reply_hv) );
 686                  * XPUSHs( newRV_noinc((SV *)rad_check_hv) );
 687                  * PUTBACK;
 688                  */
 689
 690                 count = call_pv(function_name, G_SCALAR | G_EVAL | G_NOARGS);
 691
 692                 SPAGAIN;
 693
 694                 if (SvTRUE(ERRSV)) {
 695                         radlog(L_ERR, "rlm_perl: perl_embed:: module = %s , func = %s exit status= %s\n",
 696                                inst->module,
 697                                function_name, SvPV(ERRSV,n_a));
 698                         (void)POPs;
 699                 }
 700
 701                 if (count == 1) {
 702                         exitstatus = POPi;
 703                         if (exitstatus >= 100 || exitstatus < 0) {
 704                                 exitstatus = RLM_MODULE_FAIL;
 705                         }
 706                 }
 707
 708
 709                 PUTBACK;
 710                 FREETMPS;
 711                 LEAVE;
 712
 713                 vp = NULL;
 714                 if ((get_hv_content(request->packet, rad_request_hv, &vp)) > 0 ) {
 715                         pairfree(&request->packet->vps);
 716                         request->packet->vps = vp;
 717                         vp = NULL;
 718
 719                         /*
 720                          *      Update cached copies
 721                          */
 722                         request->username = pairfind(request->packet->vps, PW_USER_NAME, 0, TAG_ANY);
 723                         request->password = pairfind(request->packet->vps, PW_USER_PASSWORD, 0, TAG_ANY);
 724                         if (!request->password)
 725                                 request->password = pairfind(request->packet->vps, PW_CHAP_PASSWORD, 0, TAG_ANY);
 726                 }
 727
 728                 if ((get_hv_content(request->reply, rad_reply_hv, &vp)) > 0 ) {
 729                         pairfree(&request->reply->vps);
 730                         request->reply->vps = vp;
 731                         vp = NULL;
 732                 }
 733
 734                 if ((get_hv_content(request, rad_check_hv, &vp)) > 0 ) {
 735                         pairfree(&request->config_items);
 736                         request->config_items = vp;
 737                         vp = NULL;
 738                 }
 739
 740 #ifdef WITH_PROXY
 741                 if (request->proxy &&
 742                     (get_hv_content(request->proxy, rad_request_proxy_hv, &vp) > 0)) {
 743                         pairfree(&request->proxy->vps);
 744                         request->proxy->vps = vp;
 745                         vp = NULL;
 746                 }
 747
 748                 if (request->proxy_reply &&
 749                     (get_hv_content(request->proxy_reply, rad_request_proxy_reply_hv, &vp) > 0)) {
 750                         pairfree(&request->proxy_reply->vps);
 751                         request->proxy_reply->vps = vp;
 752                         vp = NULL;
 753                 }
 754 #endif
 755
 756         }
 757         return exitstatus;
 758 }
 759
 760 #define RLM_PERL_FUNC(_x) static rlm_rcode_t mod_##_x(void *instance, REQUEST *request) \
 761         {                                                               \
 762                 return do_perl(instance, request,                       \
 763                                ((rlm_perl_t *)instance)->func_##_x); \
 764         }
 765
 766 RLM_PERL_FUNC(authorize)
 767 RLM_PERL_FUNC(authenticate)
 768 RLM_PERL_FUNC(post_auth)
 769
 770 RLM_PERL_FUNC(checksimul)
 771
 772 #ifdef WITH_PROXY
 773 RLM_PERL_FUNC(pre_proxy)
 774 RLM_PERL_FUNC(post_proxy)
 775 #endif
 776
 777 #ifdef WITH_COA
 778 RLM_PERL_FUNC(recv_coa)
 779 RLM_PERL_FUNC(send_coa)
 780 #endif
 781
 782 RLM_PERL_FUNC(preacct)
 783
 784 /*
 785  *      Write accounting information to this modules database.
 786  */
 787 static rlm_rcode_t mod_accounting(void *instance, REQUEST *request)
 788 {
 789         VALUE_PAIR      *pair;
 790         int             acctstatustype=0;
 791
 792         if ((pair = pairfind(request->packet->vps, PW_ACCT_STATUS_TYPE, 0, TAG_ANY)) != NULL) {
 793                 acctstatustype = pair->vp_integer;
 794         } else {
 795                 radlog(L_ERR, "Invalid Accounting Packet");
 796                 return RLM_MODULE_INVALID;
 797         }
 798
 799         switch (acctstatustype) {
 800
 801         case PW_STATUS_START:
 802
 803                 if (((rlm_perl_t *)instance)->func_start_accounting) {
 804                         return do_perl(instance, request,
 805                                        ((rlm_perl_t *)instance)->func_start_accounting);
 806                 } else {
 807                         return do_perl(instance, request,
 808                                        ((rlm_perl_t *)instance)->func_accounting);
 809                 }
 810                 break;
 811
 812         case PW_STATUS_STOP:
 813
 814                 if (((rlm_perl_t *)instance)->func_stop_accounting) {
 815                         return do_perl(instance, request,
 816                                        ((rlm_perl_t *)instance)->func_stop_accounting);
 817                 } else {
 818                         return do_perl(instance, request,
 819                                        ((rlm_perl_t *)instance)->func_accounting);
 820                 }
 821                 break;
 822         default:
 823                 return do_perl(instance, request,
 824                                ((rlm_perl_t *)instance)->func_accounting);
 825
 826         }
 827 }
 828
 829
 830 /*
 831  * Detach a instance give a chance to a module to make some internal setup ...
 832  */
 833 static int mod_detach(void *instance)
 834 {
 835         rlm_perl_t      *inst = (rlm_perl_t *) instance;
 836         int             exitstatus = 0, count = 0;
 837
 838 #if 0
 839         /*
 840          *      FIXME: Call this in the destruct function?
 841          */
 842         {
 843                 dTHXa(handle->clone);
 844                 PERL_SET_CONTEXT(handle->clone);
 845                 {
 846                         dSP; ENTER; SAVETMPS; PUSHMARK(SP);
 847                         count = call_pv(inst->func_detach, G_SCALAR | G_EVAL );
 848                         SPAGAIN;
 849
 850                         if (count == 1) {
 851                                 exitstatus = POPi;
 852                                 /*
 853                                  * FIXME: bug in perl
 854                                  *
 855                                  */
 856                                 if (exitstatus >= 100 || exitstatus < 0) {
 857                                         exitstatus = RLM_MODULE_FAIL;
 858                                 }
 859                         }
 860                         PUTBACK;
 861                         FREETMPS;
 862                         LEAVE;
 863                 }
 864         }
 865 #endif
 866
 867         if (inst->func_detach) {
 868                 dTHXa(inst->perl);
 869                 PERL_SET_CONTEXT(inst->perl);
 870                 {
 871                         dSP; ENTER; SAVETMPS;
 872                         PUSHMARK(SP);
 873
 874                         count = call_pv(inst->func_detach, G_SCALAR | G_EVAL );
 875                         SPAGAIN;
 876
 877                         if (count == 1) {
 878                                 exitstatus = POPi;
 879                                 if (exitstatus >= 100 || exitstatus < 0) {
 880                                         exitstatus = RLM_MODULE_FAIL;
 881                                 }
 882                         }
 883                         PUTBACK;
 884                         FREETMPS;
 885                         LEAVE;
 886                 }
 887         }
 888
 889 #ifdef USE_ITHREADS
 890         rlm_perl_destruct(inst->perl);
 891         pthread_mutex_destroy(&inst->clone_mutex);
 892 #else
 893         perl_destruct(inst->perl);
 894         perl_free(inst->perl);
 895 #endif
 896
 897         PERL_SYS_TERM();
 898         return exitstatus;
 899 }
 900
 901
 902 /*
 903  *      The module name should be the only globally exported symbol.
 904  *      That is, everything else should be 'static'.
 905  *
 906  *      If the module needs to temporarily modify it's instantiation
 907  *      data, the type should be changed to RLM_TYPE_THREAD_UNSAFE.
 908  *      The server will then take care of ensuring that the module
 909  *      is single-threaded.
 910  */
 911 module_t rlm_perl = {
 912         RLM_MODULE_INIT,
 913         "perl",                         /* Name */
 914 #ifdef USE_ITHREADS
 915         RLM_TYPE_THREAD_SAFE,           /* type */
 916 #else
 917         RLM_TYPE_THREAD_UNSAFE,
 918 #endif
 919         sizeof(rlm_perl_t),
 920         module_config,
 921         mod_instantiate,                /* instantiation */
 922         mod_detach,                     /* detach */
 923         {
 924                 mod_authenticate,       /* authenticate */
 925                 mod_authorize,          /* authorize */
 926                 mod_preacct,            /* preacct */
 927                 mod_accounting, /* accounting */
 928                 mod_checksimul,         /* check simul */
 929 #ifdef WITH_PROXY
 930                 mod_pre_proxy,          /* pre-proxy */
 931                 mod_post_proxy, /* post-proxy */
 932 #else
 933                 NULL, NULL,
 934 #endif
 935                 mod_post_auth           /* post-auth */
 936 #ifdef WITH_COA
 937                 , mod_recv_coa,
 938                 mod_send_coa
 939 #endif
 940         },
 941 };