src/main/xlat.c

   1 /*
   2  * xlat.c       Translate strings.  This is the first version of xlat
   3  *              incorporated to RADIUS
   4  *
   5  * Version:     $Id$
   6  *
   7  *   This program is free software; you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License as published by
   9  *   the Free Software Foundation; either version 2 of the License, or
  10  *   (at your option) any later version.
  11  *
  12  *   This program is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with this program; if not, write to the Free Software
  19  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * Copyright 2000  The FreeRADIUS server project
  22  * Copyright 2000  Alan DeKok <aland@ox.org>
  23  */
  24
  25 static const char rcsid[] =
  26 "$Id$";
  27
  28 #include        "autoconf.h"
  29 #include        "libradius.h"
  30
  31 #include        <stdio.h>
  32 #include        <stdlib.h>
  33 #include        <string.h>
  34 #include        <ctype.h>
  35
  36 #include        "radiusd.h"
  37
  38 #include        "rad_assert.h"
  39
  40 typedef struct xlat_t {
  41         char            module[MAX_STRING_LEN];
  42         int             length;
  43         void            *instance;
  44         RAD_XLAT_FUNC   do_xlat;
  45         int             internal;       /* not allowed to re-define these */
  46 } xlat_t;
  47
  48 static rbtree_t *xlat_root = NULL;
  49
  50 /*
  51  *      Define all xlat's in the structure.
  52  */
  53 static const char *internal_xlat[] = {"check",
  54                                       "request",
  55                                       "reply",
  56                                       "proxy-request",
  57                                       "proxy-reply",
  58                                       NULL};
  59
  60 #if REQUEST_MAX_REGEX > 8
  61 #error Please fix the following line
  62 #endif
  63 static int xlat_inst[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8 }; /* up to 8 for regex */
  64
  65
  66 /*
  67  *      Convert the value on a VALUE_PAIR to string
  68  */
  69 static int valuepair2str(char * out,int outlen,VALUE_PAIR * pair,
  70                          int type, RADIUS_ESCAPE_STRING func)
  71 {
  72         char buffer[MAX_STRING_LEN * 4];
  73
  74         if (pair != NULL) {
  75                 vp_prints_value(buffer, sizeof(buffer), pair, -1);
  76                 return func(out, outlen, buffer);
  77         }
  78
  79         switch (type) {
  80         case PW_TYPE_STRING :
  81                 strNcpy(out,"_",outlen);
  82                 break;
  83         case PW_TYPE_INTEGER :
  84                 strNcpy(out,"0",outlen);
  85                 break;
  86         case PW_TYPE_IPADDR :
  87                 strNcpy(out,"?.?.?.?",outlen);
  88                 break;
  89         case PW_TYPE_DATE :
  90                 strNcpy(out,"0",outlen);
  91                 break;
  92         default :
  93                 strNcpy(out,"unknown_type",outlen);
  94         }
  95         return strlen(out);
  96 }
  97
  98
  99 /*
 100  *      Dynamically translate for check:, request:, reply:, etc.
 101  */
 102 static int xlat_packet(void *instance, REQUEST *request,
 103                        char *fmt, char *out, size_t outlen,
 104                        RADIUS_ESCAPE_STRING func)
 105 {
 106         DICT_ATTR       *da;
 107         VALUE_PAIR      *vp;
 108         VALUE_PAIR      *vps = NULL;
 109         RADIUS_PACKET   *packet = NULL;
 110
 111         switch (*(int*) instance) {
 112         case 0:
 113                 vps = request->config_items;
 114                 break;
 115
 116         case 1:
 117                 vps = request->packet->vps;
 118                 packet = request->packet;
 119                 break;
 120
 121         case 2:
 122                 vps = request->reply->vps;
 123                 packet = request->reply;
 124                 break;
 125
 126         case 3:
 127                 if (request->proxy) vps = request->proxy->vps;
 128                 packet = request->proxy;
 129                 break;
 130
 131         case 4:
 132                 if (request->proxy_reply) vps = request->proxy_reply->vps;
 133                 packet = request->proxy_reply;
 134                 break;
 135
 136         default:                /* WTF? */
 137                 return 0;
 138         }
 139
 140         /*
 141          *      The "format" string is the attribute name.
 142          */
 143         da = dict_attrbyname(fmt);
 144         if (!da) {
 145                 int index;
 146                 const char *p = strchr(fmt, '[');
 147                 char buffer[256];
 148
 149                 if (!p) return 0;
 150                 if (strlen(fmt) > sizeof(buffer)) return 0;
 151
 152                 strNcpy(buffer, fmt, p - fmt + 1);
 153
 154                 da = dict_attrbyname(buffer);
 155                 if (!da) return 0;
 156
 157                 /*
 158                  *      %{Attribute-Name[#]} returns the count of
 159                  *      attributes of that name in the list.
 160                  */
 161                 if ((p[1] == '#') && (p[2] == ']')) {
 162                         index = 0;
 163
 164                         for (vp = pairfind(vps, da->attr);
 165                              vp != NULL;
 166                              vp = pairfind(vp->next, da->attr)) {
 167                                 index++;
 168                         }
 169                         snprintf(out, outlen, "%d", index);
 170                         return strlen(out);
 171                 }
 172
 173                 /*
 174                  *      %{Attribute-Name[*]} returns ALL of the
 175                  *      the attributes, separated by a newline.
 176                  */
 177                 if ((p[1] == '*') && (p[2] == ']')) {
 178                         int total = 0;
 179
 180                         for (vp = pairfind(vps, da->attr);
 181                              vp != NULL;
 182                              vp = pairfind(vp->next, da->attr)) {
 183                                 index = valuepair2str(out, outlen - 1, vp, da->type, func);
 184                                 rad_assert(index <= outlen);
 185                                 total += index + 1;
 186                                 outlen -= (index + 1);
 187                                 out += index;
 188
 189                                 *(out++) = '\n';
 190
 191                                 if (outlen == 0) break;
 192                         }
 193
 194                         return total;
 195                 }
 196
 197                 index = atoi(p + 1);
 198
 199                 /*
 200                  *      Skip the numbers.
 201                  */
 202                 p += 1 + strspn(p + 1, "0123456789");
 203                 if (*p != ']') {
 204                         DEBUG2("xlat: Invalid array reference in string at %s %s",
 205                                fmt, p);
 206                         return 0;
 207                 }
 208
 209                 /*
 210                  *      Find the N'th value.
 211                  */
 212                 for (vp = pairfind(vps, da->attr);
 213                      vp != NULL;
 214                      vp = pairfind(vp->next, da->attr)) {
 215                         if (index == 0) break;
 216                         index--;
 217                 }
 218
 219                 /*
 220                  *      Non-existent array reference.
 221                  */
 222                 if (!vp) return 0;
 223
 224                 return valuepair2str(out, outlen, vp, da->type, func);
 225         }
 226
 227         vp = pairfind(vps, da->attr);
 228         if (!vp) {
 229                 /*
 230                  *      Some "magic" handlers, which are never in VP's, but
 231                  *      which are in the packet.
 232                  */
 233                 if (packet) {
 234                         VALUE_PAIR localvp;
 235
 236                         localvp.strvalue[0] = 0;
 237
 238                         switch (da->attr) {
 239                         case PW_PACKET_TYPE:
 240                         {
 241                                 DICT_VALUE *dval;
 242
 243                                 dval = dict_valbyattr(da->attr, packet->code);
 244                                 if (dval) {
 245                                         snprintf(out, outlen, "%s", dval->name);
 246                                 } else {
 247                                         snprintf(out, outlen, "%d", packet->code);
 248                                 }
 249                                 return strlen(out);
 250                         }
 251                         break;
 252
 253                         case PW_PACKET_SRC_IP_ADDRESS:
 254                                 localvp.attribute = da->attr;
 255                                 localvp.lvalue = packet->src_ipaddr;
 256                                 break;
 257
 258                         case PW_PACKET_DST_IP_ADDRESS:
 259                                 localvp.attribute = da->attr;
 260                                 localvp.lvalue = packet->dst_ipaddr;
 261                                 break;
 262
 263                         case PW_PACKET_SRC_PORT:
 264                                 localvp.attribute = da->attr;
 265                                 localvp.lvalue = packet->src_port;
 266                                 break;
 267
 268                         case PW_PACKET_DST_PORT:
 269                                 localvp.attribute = da->attr;
 270                                 localvp.lvalue = packet->dst_port;
 271                                 break;
 272                         case PW_PACKET_AUTHENTICATION_VECTOR:
 273                                 localvp.attribute = da->attr;
 274                                 memcpy(localvp.strvalue, packet->vector,
 275                                        sizeof(packet->vector));
 276                                 localvp.length = sizeof(packet->vector);
 277                                 break;
 278
 279                         default:
 280                                 return 0; /* not found */
 281                                 break;
 282                         }
 283
 284                         localvp.type = da->type;
 285                         return valuepair2str(out, outlen, &localvp,
 286                                              da->type, func);
 287                 }
 288
 289                 /*
 290                  *      Not found, die.
 291                  */
 292                 return 0;
 293         }
 294
 295         if (!vps) return 0;     /* silently fail */
 296
 297         /*
 298          *      Convert the VP to a string, and return it.
 299          */
 300         return valuepair2str(out, outlen, vp, da->type, func);
 301 }
 302
 303 #ifdef HAVE_REGEX_H
 304 /*
 305  *      Pull %{0} to %{8} out of the packet.
 306  */
 307 static int xlat_regex(void *instance, REQUEST *request,
 308                       char *fmt, char *out, size_t outlen,
 309                       RADIUS_ESCAPE_STRING func)
 310 {
 311         char *regex;
 312
 313         /*
 314          *      We cheat: fmt is "0" to "8", but those numbers
 315          *      are already in the "instance".
 316          */
 317         fmt = fmt;              /* -Wunused */
 318         func = func;            /* -Wunused FIXME: do escaping? */
 319
 320         regex = request_data_get(request, request,
 321                                  REQUEST_DATA_REGEX | *(int *)instance);
 322         if (!regex) return 0;
 323
 324         /*
 325          *      Copy UP TO "freespace" bytes, including
 326          *      a zero byte.
 327          */
 328         strNcpy(out, regex, outlen);
 329         free(regex); /* was strdup'd */
 330         return strlen(out);
 331 }
 332 #endif                          /* HAVE_REGEX_H */
 333
 334 /*
 335  *      Compare two xlat_t structs, based ONLY on the module name.
 336  */
 337 static int xlat_cmp(const void *a, const void *b)
 338 {
 339         if (((const xlat_t *)a)->length != ((const xlat_t *)b)->length) {
 340                 return ((const xlat_t *)a)->length - ((const xlat_t *)b)->length;
 341         }
 342
 343         return memcmp(((const xlat_t *)a)->module,
 344                       ((const xlat_t *)b)->module,
 345                       ((const xlat_t *)a)->length);
 346 }
 347
 348
 349 /*
 350  *      find the appropriate registered xlat function.
 351  */
 352 static xlat_t *xlat_find(const char *module)
 353 {
 354         char *p;
 355         xlat_t my_xlat;
 356
 357         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 358
 359         /*
 360          *      We get passed the WHOLE string, and all we want here
 361          *      is the first piece.
 362          */
 363         p = strchr(my_xlat.module, ':');
 364         if (p) *p = '\0';
 365
 366         my_xlat.length = strlen(my_xlat.module);
 367
 368         return rbtree_finddata(xlat_root, &my_xlat);
 369 }
 370
 371
 372 /*
 373  *      Register an xlat function.
 374  */
 375 int xlat_register(const char *module, RAD_XLAT_FUNC func, void *instance)
 376 {
 377         xlat_t  *c;
 378         xlat_t  my_xlat;
 379
 380         if ((module == NULL) || (strlen(module) == 0)) {
 381                 DEBUG("xlat_register: Invalid module name");
 382                 return -1;
 383         }
 384
 385         /*
 386          *      First time around, build up the tree...
 387          *
 388          *      FIXME: This code should be hoisted out of this function,
 389          *      and into a global "initialization".  But it isn't critical...
 390          */
 391         if (!xlat_root) {
 392                 int i;
 393 #ifdef HAVE_REGEX_H
 394                 char buffer[2];
 395 #endif
 396
 397                 xlat_root = rbtree_create(xlat_cmp, free, 0);
 398                 if (!xlat_root) {
 399                         DEBUG("xlat_register: Failed to create tree.");
 400                         return -1;
 401                 }
 402
 403                 /*
 404                  *      Register the internal packet xlat's.
 405                  */
 406                 for (i = 0; internal_xlat[i] != NULL; i++) {
 407                         xlat_register(internal_xlat[i], xlat_packet, &xlat_inst[i]);
 408                         c = xlat_find(internal_xlat[i]);
 409                         rad_assert(c != NULL);
 410                         c->internal = TRUE;
 411                 }
 412
 413 #ifdef HAVE_REGEX_H
 414                 /*
 415                  *      Register xlat's for regexes.
 416                  */
 417                 buffer[1] = '\0';
 418                 for (i = 0; i <= REQUEST_MAX_REGEX; i++) {
 419                         buffer[0] = '0' + i;
 420                         xlat_register(buffer, xlat_regex, &xlat_inst[i]);
 421                         c = xlat_find(buffer);
 422                         rad_assert(c != NULL);
 423                         c->internal = TRUE;
 424                 }
 425 #endif /* HAVE_REGEX_H */
 426         }
 427
 428         /*
 429          *      If it already exists, replace the instance.
 430          */
 431         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 432         my_xlat.length = strlen(my_xlat.module);
 433         c = rbtree_finddata(xlat_root, &my_xlat);
 434         if (c) {
 435                 if (c->internal) {
 436                         DEBUG("xlat_register: Cannot re-define internal xlat");
 437                         return -1;
 438                 }
 439
 440                 c->do_xlat = func;
 441                 c->instance = instance;
 442                 return 0;
 443         }
 444
 445         /*
 446          *      Doesn't exist.  Create it.
 447          */
 448         c = rad_malloc(sizeof(xlat_t));
 449         memset(c, 0, sizeof(*c));
 450
 451         c->do_xlat = func;
 452         strNcpy(c->module, module, sizeof(c->module));
 453         c->length = strlen(c->module);
 454         c->instance = instance;
 455
 456         rbtree_insert(xlat_root, c);
 457
 458         return 0;
 459 }
 460
 461 /*
 462  *      Unregister an xlat function.
 463  *
 464  *      We can only have one function to call per name, so the
 465  *      passing of "func" here is extraneous.
 466  */
 467 void xlat_unregister(const char *module, RAD_XLAT_FUNC func)
 468 {
 469         rbnode_t        *node;
 470         xlat_t          my_xlat;
 471
 472         func = func;            /* -Wunused */
 473
 474         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 475         my_xlat.length = strlen(my_xlat.module);
 476
 477         node = rbtree_find(xlat_root, &my_xlat);
 478         if (!node) return;
 479
 480         rbtree_delete(xlat_root, node);
 481 }
 482
 483 /*
 484  *      De-register all xlat functions,
 485  *      used mainly for debugging.
 486  */
 487 void xlat_free(void)
 488 {
 489         rbtree_free(xlat_root);
 490 }
 491
 492
 493 /*
 494  *      Decode an attribute name into a string.
 495  */
 496 static void decode_attribute(const char **from, char **to, int freespace,
 497                              int *open, REQUEST *request,
 498                              RADIUS_ESCAPE_STRING func)
 499 {
 500         int     do_length = 0;
 501         char attrname[256];
 502         const char *p;
 503         char *q, *pa;
 504         int stop=0, found=0, retlen=0;
 505         int openbraces = *open;
 506         xlat_t *c;
 507
 508         p = *from;
 509         q = *to;
 510         pa = &attrname[0];
 511
 512         *q = '\0';
 513
 514         /*
 515          * Skip the '{' at the front of 'p'
 516          * Increment open braces
 517          */
 518         p++;
 519         openbraces++;
 520
 521         if (*p == '#') {
 522                 p++;
 523                 do_length = 1;
 524         }
 525
 526         /*
 527          *  Copy over the rest of the string.
 528          */
 529         while ((*p) && (!stop)) {
 530                 switch(*p) {
 531                         /*
 532                          *  Allow braces inside things, too.
 533                          */
 534                         case '\\':
 535                                 p++; /* skip it */
 536                                 *pa++ = *p++;
 537                                 break;
 538
 539                         case '{':
 540                                 openbraces++;
 541                                 *pa++ = *p++;
 542                                 break;
 543
 544                         case '}':
 545                                 openbraces--;
 546                                 if (openbraces == *open) {
 547                                         p++;
 548                                         stop=1;
 549                                 } else {
 550                                         *pa++ = *p++;
 551                                 }
 552                                 break;
 553
 554                                 /*
 555                                  *  Attr-Name1:-Attr-Name2
 556                                  *
 557                                  *  Use Attr-Name1, and if not found,
 558                                  *  use Attr-Name2.
 559                                  */
 560                         case ':':
 561                                 if (p[1] == '-') {
 562                                         p += 2;
 563                                         stop = 1;
 564                                         break;
 565                                 }
 566                                 /* else FALL-THROUGH */
 567
 568                         default:
 569                                 *pa++ = *p++;
 570                                 break;
 571                 }
 572         }
 573         *pa = '\0';
 574
 575         /*
 576          *      Look up almost everything in the new tree of xlat
 577          *      functions.  this makes it a little quicker...
 578          */
 579         if ((c = xlat_find(attrname)) != NULL) {
 580                 if (!c->internal) DEBUG("radius_xlat: Running registered xlat function of module %s for string \'%s\'",
 581                                         c->module, attrname+ c->length + 1);
 582                 retlen = c->do_xlat(c->instance, request, attrname+(c->length+1), q, freespace, func);
 583                 /* If retlen is 0, treat it as not found */
 584                 if (retlen > 0) found = 1;
 585
 586                 /*
 587                  *      Not in the default xlat database.  Must be
 588                  *      a bare attribute number.
 589                  */
 590         } else if ((retlen = xlat_packet(&xlat_inst[1], request, attrname,
 591                                          q, freespace, func)) > 0) {
 592                 found = 1;
 593
 594                 /*
 595                  *      Look up the name, in order to get the correct
 596                  *      debug message.
 597                  */
 598 #ifndef NDEBUG
 599         } else if (dict_attrbyname(attrname) == NULL) {
 600                 /*
 601                  *      No attribute by that name, return an error.
 602                  */
 603                 DEBUG2("WARNING: Attempt to use unknown xlat function, or non-existent attribute in string %%{%s}", attrname);
 604 #endif
 605         } /* else the attribute is known, but not in the request */
 606
 607         /*
 608          * Skip to last '}' if attr is found
 609          * The rest of the stuff within the braces is
 610          * useless if we found what we need
 611          */
 612         if (found) {
 613                 if (do_length) {
 614                         snprintf(q, freespace, "%d", retlen);
 615                         retlen = strlen(q);
 616                 }
 617
 618                 q += retlen;
 619
 620                 while((*p != '\0') && (openbraces > 0)) {
 621                         /*
 622                          *      Handle escapes outside of the loop.
 623                          */
 624                         if (*p == '\\') {
 625                                 p++;
 626                                 if (!*p) break;
 627                                 p++; /* get & ignore next character */
 628                                 continue;
 629                         }
 630
 631                         switch (*p) {
 632                         default:
 633                                 break;
 634
 635                                 /*
 636                                  *  Bare brace
 637                                  */
 638                         case '{':
 639                                 openbraces++;
 640                                 break;
 641
 642                         case '}':
 643                                 openbraces--;
 644                                 break;
 645                         }
 646                         p++;    /* skip the character */
 647                 }
 648         }
 649
 650         *open = openbraces;
 651         *from = p;
 652         *to = q;
 653 }
 654
 655 /*
 656  *  If the caller doesn't pass xlat an escape function, then
 657  *  we use this one.  It simplifies the coding, as the check for
 658  *  func == NULL only happens once.
 659  */
 660 static int xlat_copy(char *out, int outlen, const char *in)
 661 {
 662         int len = 0;
 663
 664         while (*in) {
 665                 /*
 666                  *  Truncate, if too much.
 667                  */
 668                 if (len >= outlen) {
 669                         break;
 670                 }
 671
 672                 /*
 673                  *  Copy data.
 674                  *
 675                  *  FIXME: Do escaping of bad stuff!
 676                  */
 677                 *out = *in;
 678
 679                 out++;
 680                 in++;
 681                 len++;
 682         }
 683
 684         *out = '\0';
 685         return len;
 686 }
 687
 688 /*
 689  *      Replace %<whatever> in a string.
 690  *
 691  *      See 'doc/variables.txt' for more information.
 692  */
 693 int radius_xlat(char *out, int outlen, const char *fmt,
 694                 REQUEST *request, RADIUS_ESCAPE_STRING func)
 695 {
 696         int i, c,freespace;
 697         const char *p;
 698         char *q;
 699         VALUE_PAIR *tmp;
 700         struct tm *TM, s_TM;
 701         char tmpdt[40]; /* For temporary storing of dates */
 702         int openbraces=0;
 703
 704         /*
 705          *      Catch bad modules.
 706          */
 707         if (!fmt || !out || !request) return 0;
 708
 709         /*
 710          *  Ensure that we always have an escaping function.
 711          */
 712         if (func == NULL) {
 713                 func = xlat_copy;
 714         }
 715
 716         q = out;
 717         p = fmt;
 718         while (*p) {
 719                 /* Calculate freespace in output */
 720                 freespace = outlen - (q - out);
 721                 if (freespace <= 1)
 722                         break;
 723                 c = *p;
 724
 725                 if ((c != '%') && (c != '$') && (c != '\\')) {
 726                         /*
 727                          * We check if we're inside an open brace.  If we are
 728                          * then we assume this brace is NOT literal, but is
 729                          * a closing brace and apply it
 730                          */
 731                         if ((c == '}') && openbraces) {
 732                                 openbraces--;
 733                                 p++; /* skip it */
 734                                 continue;
 735                         }
 736                         *q++ = *p++;
 737                         continue;
 738                 }
 739
 740                 /*
 741                  *      There's nothing after this character, copy
 742                  *      the last '%' or "$' or '\\' over to the output
 743                  *      buffer, and exit.
 744                  */
 745                 if (*++p == '\0') {
 746                         *q++ = c;
 747                         break;
 748                 }
 749
 750                 if (c == '\\') {
 751                         switch(*p) {
 752                         case '\\':
 753                                 *q++ = *p;
 754                                 break;
 755                         case 't':
 756                                 *q++ = '\t';
 757                                 break;
 758                         case 'n':
 759                                 *q++ = '\n';
 760                                 break;
 761                         default:
 762                                 *q++ = c;
 763                                 *q++ = *p;
 764                                 break;
 765                         }
 766                         p++;
 767
 768                         /*
 769                          *      Hmmm... ${User-Name} is a synonym for
 770                          *      %{User-Name}.
 771                          *
 772                          *      Why, exactly?
 773                          */
 774                 } else if (c == '$') switch(*p) {
 775                         case '{': /* Attribute by Name */
 776                                 decode_attribute(&p, &q, freespace, &openbraces, request, func);
 777                                 break;
 778                         default:
 779                                 *q++ = c;
 780                                 *q++ = *p++;
 781                                 break;
 782
 783                 } else if (c == '%') switch(*p) {
 784                         case '{':
 785                                 decode_attribute(&p, &q, freespace, &openbraces, request, func);
 786                                 break;
 787
 788                         case '%':
 789                                 *q++ = *p++;
 790                                 break;
 791                         case 'a': /* Protocol: */
 792                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_PROTOCOL),PW_TYPE_INTEGER, func);
 793                                 p++;
 794                                 break;
 795                         case 'c': /* Callback-Number */
 796                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_CALLBACK_NUMBER),PW_TYPE_STRING, func);
 797                                 p++;
 798                                 break;
 799                         case 'd': /* request day */
 800                                 TM = localtime_r(&request->timestamp, &s_TM);
 801                                 strftime(tmpdt,sizeof(tmpdt),"%d",TM);
 802                                 strNcpy(q,tmpdt,freespace);
 803                                 q += strlen(q);
 804                                 p++;
 805                                 break;
 806                         case 'f': /* Framed IP address */
 807                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_IP_ADDRESS),PW_TYPE_IPADDR, func);
 808                                 p++;
 809                                 break;
 810                         case 'i': /* Calling station ID */
 811                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_CALLING_STATION_ID),PW_TYPE_STRING, func);
 812                                 p++;
 813                                 break;
 814                         case 'l': /* request timestamp */
 815                                 snprintf(tmpdt, sizeof(tmpdt), "%lu",
 816                                          (unsigned long) request->timestamp);
 817                                 strNcpy(q,tmpdt,freespace);
 818                                 q += strlen(q);
 819                                 p++;
 820                                 break;
 821                         case 'm': /* request month */
 822                                 TM = localtime_r(&request->timestamp, &s_TM);
 823                                 strftime(tmpdt,sizeof(tmpdt),"%m",TM);
 824                                 strNcpy(q,tmpdt,freespace);
 825                                 q += strlen(q);
 826                                 p++;
 827                                 break;
 828                         case 'n': /* NAS IP address */
 829                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_NAS_IP_ADDRESS),PW_TYPE_IPADDR, func);
 830                                 p++;
 831                                 break;
 832                         case 'p': /* Port number */
 833                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_NAS_PORT),PW_TYPE_INTEGER, func);
 834                                 p++;
 835                                 break;
 836                         case 's': /* Speed */
 837                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_CONNECT_INFO),PW_TYPE_STRING, func);
 838                                 p++;
 839                                 break;
 840                         case 't': /* request timestamp */
 841                                 CTIME_R(&request->timestamp, q, freespace);
 842                                 q += strlen(q);
 843                                 p++;
 844                                 break;
 845                         case 'u': /* User name */
 846                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_USER_NAME),PW_TYPE_STRING, func);
 847                                 p++;
 848                                 break;
 849                         case 'A': /* radacct_dir */
 850                                 strNcpy(q,radacct_dir,freespace-1);
 851                                 q += strlen(q);
 852                                 p++;
 853                                 break;
 854                         case 'C': /* ClientName */
 855                                 strNcpy(q,client_name(request->packet->src_ipaddr),freespace-1);
 856                                 q += strlen(q);
 857                                 p++;
 858                                 break;
 859                         case 'D': /* request date */
 860                                 TM = localtime_r(&request->timestamp, &s_TM);
 861                                 strftime(tmpdt,sizeof(tmpdt),"%Y%m%d",TM);
 862                                 strNcpy(q,tmpdt,freespace);
 863                                 q += strlen(q);
 864                                 p++;
 865                                 break;
 866                         case 'H': /* request hour */
 867                                 TM = localtime_r(&request->timestamp, &s_TM);
 868                                 strftime(tmpdt,sizeof(tmpdt),"%H",TM);
 869                                 strNcpy(q,tmpdt,freespace);
 870                                 q += strlen(q);
 871                                 p++;
 872                                 break;
 873                         case 'L': /* radlog_dir */
 874                                 strNcpy(q,radlog_dir,freespace-1);
 875                                 q += strlen(q);
 876                                 p++;
 877                                 break;
 878                         case 'M': /* MTU */
 879                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_MTU),PW_TYPE_INTEGER, func);
 880                                 p++;
 881                                 break;
 882                         case 'R': /* radius_dir */
 883                                 strNcpy(q,radius_dir,freespace-1);
 884                                 q += strlen(q);
 885                                 p++;
 886                                 break;
 887                         case 'S': /* request timestamp in SQL format*/
 888                                 TM = localtime_r(&request->timestamp, &s_TM);
 889                                 strftime(tmpdt,sizeof(tmpdt),"%Y-%m-%d %H:%M:%S",TM);
 890                                 strNcpy(q,tmpdt,freespace);
 891                                 q += strlen(q);
 892                                 p++;
 893                                 break;
 894                         case 'T': /* request timestamp */
 895                                 TM = localtime_r(&request->timestamp, &s_TM);
 896                                 strftime(tmpdt,sizeof(tmpdt),"%Y-%m-%d-%H.%M.%S.000000",TM);
 897                                 strNcpy(q,tmpdt,freespace);
 898                                 q += strlen(q);
 899                                 p++;
 900                                 break;
 901                         case 'U': /* Stripped User name */
 902                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_STRIPPED_USER_NAME),PW_TYPE_STRING, func);
 903                                 p++;
 904                                 break;
 905                         case 'V': /* Request-Authenticator */
 906                                 if (request->packet->verified)
 907                                         strNcpy(q,"Verified",freespace-1);
 908                                 else
 909                                         strNcpy(q,"None",freespace-1);
 910                                 q += strlen(q);
 911                                 p++;
 912                                 break;
 913                         case 'Y': /* request year */
 914                                 TM = localtime_r(&request->timestamp, &s_TM);
 915                                 strftime(tmpdt,sizeof(tmpdt),"%Y",TM);
 916                                 strNcpy(q,tmpdt,freespace);
 917                                 q += strlen(q);
 918                                 p++;
 919                                 break;
 920                         case 'Z': /* Full request pairs except password */
 921                                 tmp = request->packet->vps;
 922                                 while (tmp && (freespace > 3)) {
 923                                         if (tmp->attribute != PW_PASSWORD) {
 924                                                 *q++ = '\t';
 925                                                 i = vp_prints(q,freespace-2,tmp);
 926                                                 q += i;
 927                                                 freespace -= (i+2);
 928                                                 *q++ = '\n';
 929                                         }
 930                                         tmp = tmp->next;
 931                                 }
 932                                 p++;
 933                                 break;
 934                         default:
 935                                 DEBUG2("WARNING: Unknown variable '%%%c': See 'doc/variables.txt'", *p);
 936                                 if (freespace > 2) {
 937                                         *q++ = '%';
 938                                         *q++ = *p++;
 939                                 }
 940                                 break;
 941                 }
 942         }
 943         *q = '\0';
 944
 945         DEBUG2("radius_xlat:  '%s'", out);
 946
 947         return strlen(out);
 948 }