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