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                  *      FIXME: Add SRC/DST IP address!
 234                  */
 235                 if (packet) {
 236                         switch (da->attr) {
 237                         case PW_PACKET_TYPE:
 238                         {
 239                                 DICT_VALUE *dval;
 240
 241                                 dval = dict_valbyattr(da->attr, packet->code);
 242                                 if (dval) {
 243                                         snprintf(out, outlen, "%s", dval->name);
 244                                 } else {
 245                                         snprintf(out, outlen, "%d", packet->code);
 246                                 }
 247                                 return strlen(out);
 248                         }
 249                         break;
 250
 251                         default:
 252                                 break;
 253                         }
 254                 }
 255
 256                 /*
 257                  *      Not found, die.
 258                  */
 259                 return 0;
 260         }
 261
 262         if (!vps) return 0;     /* silently fail */
 263
 264         /*
 265          *      Convert the VP to a string, and return it.
 266          */
 267         return valuepair2str(out, outlen, vp, da->type, func);
 268 }
 269
 270 #ifdef HAVE_REGEX_H
 271 /*
 272  *      Pull %{0} to %{8} out of the packet.
 273  */
 274 static int xlat_regex(void *instance, REQUEST *request,
 275                       char *fmt, char *out, size_t outlen,
 276                       RADIUS_ESCAPE_STRING func)
 277 {
 278         char *regex;
 279
 280         /*
 281          *      We cheat: fmt is "0" to "8", but those numbers
 282          *      are already in the "instance".
 283          */
 284         fmt = fmt;              /* -Wunused */
 285         func = func;            /* -Wunused FIXME: do escaping? */
 286
 287         regex = request_data_get(request, request,
 288                                  REQUEST_DATA_REGEX | *(int *)instance);
 289         if (!regex) return 0;
 290
 291         /*
 292          *      Copy UP TO "freespace" bytes, including
 293          *      a zero byte.
 294          */
 295         strNcpy(out, regex, outlen);
 296         free(regex); /* was strdup'd */
 297         return strlen(out);
 298 }
 299 #endif                          /* HAVE_REGEX_H */
 300
 301 /*
 302  *      Compare two xlat_t structs, based ONLY on the module name.
 303  */
 304 static int xlat_cmp(const void *a, const void *b)
 305 {
 306         if (((const xlat_t *)a)->length != ((const xlat_t *)b)->length) {
 307                 return ((const xlat_t *)a)->length - ((const xlat_t *)b)->length;
 308         }
 309
 310         return memcmp(((const xlat_t *)a)->module,
 311                       ((const xlat_t *)b)->module,
 312                       ((const xlat_t *)a)->length);
 313 }
 314
 315
 316 /*
 317  *      find the appropriate registered xlat function.
 318  */
 319 static xlat_t *xlat_find(const char *module)
 320 {
 321         char *p;
 322         xlat_t my_xlat;
 323
 324         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 325
 326         /*
 327          *      We get passed the WHOLE string, and all we want here
 328          *      is the first piece.
 329          */
 330         p = strchr(my_xlat.module, ':');
 331         if (p) *p = '\0';
 332
 333         my_xlat.length = strlen(my_xlat.module);
 334
 335         return rbtree_finddata(xlat_root, &my_xlat);
 336 }
 337
 338
 339 /*
 340  *      Register an xlat function.
 341  */
 342 int xlat_register(const char *module, RAD_XLAT_FUNC func, void *instance)
 343 {
 344         xlat_t  *c;
 345         xlat_t  my_xlat;
 346
 347         if ((module == NULL) || (strlen(module) == 0)) {
 348                 DEBUG("xlat_register: Invalid module name");
 349                 return -1;
 350         }
 351
 352         /*
 353          *      First time around, build up the tree...
 354          *
 355          *      FIXME: This code should be hoisted out of this function,
 356          *      and into a global "initialization".  But it isn't critical...
 357          */
 358         if (!xlat_root) {
 359                 int i;
 360 #ifdef HAVE_REGEX_H
 361                 char buffer[2];
 362 #endif
 363
 364                 xlat_root = rbtree_create(xlat_cmp, free, 0);
 365                 if (!xlat_root) {
 366                         DEBUG("xlat_register: Failed to create tree.");
 367                         return -1;
 368                 }
 369
 370                 /*
 371                  *      Register the internal packet xlat's.
 372                  */
 373                 for (i = 0; internal_xlat[i] != NULL; i++) {
 374                         xlat_register(internal_xlat[i], xlat_packet, &xlat_inst[i]);
 375                         c = xlat_find(internal_xlat[i]);
 376                         rad_assert(c != NULL);
 377                         c->internal = TRUE;
 378                 }
 379
 380 #ifdef HAVE_REGEX_H
 381                 /*
 382                  *      Register xlat's for regexes.
 383                  */
 384                 buffer[1] = '\0';
 385                 for (i = 0; i <= REQUEST_MAX_REGEX; i++) {
 386                         buffer[0] = '0' + i;
 387                         xlat_register(buffer, xlat_regex, &xlat_inst[i]);
 388                         c = xlat_find(buffer);
 389                         rad_assert(c != NULL);
 390                         c->internal = TRUE;
 391                 }
 392 #endif /* HAVE_REGEX_H */
 393         }
 394
 395         /*
 396          *      If it already exists, replace the instance.
 397          */
 398         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 399         my_xlat.length = strlen(my_xlat.module);
 400         c = rbtree_finddata(xlat_root, &my_xlat);
 401         if (c) {
 402                 if (c->internal) {
 403                         DEBUG("xlat_register: Cannot re-define internal xlat");
 404                         return -1;
 405                 }
 406
 407                 c->do_xlat = func;
 408                 c->instance = instance;
 409                 return 0;
 410         }
 411
 412         /*
 413          *      Doesn't exist.  Create it.
 414          */
 415         c = rad_malloc(sizeof(xlat_t));
 416         memset(c, 0, sizeof(*c));
 417
 418         c->do_xlat = func;
 419         strNcpy(c->module, module, sizeof(c->module));
 420         c->length = strlen(c->module);
 421         c->instance = instance;
 422
 423         rbtree_insert(xlat_root, c);
 424
 425         return 0;
 426 }
 427
 428 /*
 429  *      Unregister an xlat function.
 430  *
 431  *      We can only have one function to call per name, so the
 432  *      passing of "func" here is extraneous.
 433  */
 434 void xlat_unregister(const char *module, RAD_XLAT_FUNC func)
 435 {
 436         rbnode_t        *node;
 437         xlat_t          my_xlat;
 438
 439         func = func;            /* -Wunused */
 440
 441         strNcpy(my_xlat.module, module, sizeof(my_xlat.module));
 442         my_xlat.length = strlen(my_xlat.module);
 443
 444         node = rbtree_find(xlat_root, &my_xlat);
 445         if (!node) return;
 446
 447         rbtree_delete(xlat_root, node);
 448 }
 449
 450 /*
 451  *      De-register all xlat functions,
 452  *      used mainly for debugging.
 453  */
 454 void xlat_free(void)
 455 {
 456         rbtree_free(xlat_root);
 457 }
 458
 459
 460 /*
 461  *      Decode an attribute name into a string.
 462  */
 463 static void decode_attribute(const char **from, char **to, int freespace,
 464                              int *open, REQUEST *request,
 465                              RADIUS_ESCAPE_STRING func)
 466 {
 467         int     do_length = 0;
 468         char attrname[256];
 469         const char *p;
 470         char *q, *pa;
 471         int stop=0, found=0, retlen=0;
 472         int openbraces = *open;
 473         xlat_t *c;
 474
 475         p = *from;
 476         q = *to;
 477         pa = &attrname[0];
 478
 479         *q = '\0';
 480
 481         /*
 482          * Skip the '{' at the front of 'p'
 483          * Increment open braces
 484          */
 485         p++;
 486         openbraces++;
 487
 488         if (*p == '#') {
 489                 p++;
 490                 do_length = 1;
 491         }
 492
 493         /*
 494          *  Copy over the rest of the string.
 495          */
 496         while ((*p) && (!stop)) {
 497                 switch(*p) {
 498                         /*
 499                          *  Allow braces inside things, too.
 500                          */
 501                         case '\\':
 502                                 p++; /* skip it */
 503                                 *pa++ = *p++;
 504                                 break;
 505
 506                         case '{':
 507                                 openbraces++;
 508                                 *pa++ = *p++;
 509                                 break;
 510
 511                         case '}':
 512                                 openbraces--;
 513                                 if (openbraces == *open) {
 514                                         p++;
 515                                         stop=1;
 516                                 } else {
 517                                         *pa++ = *p++;
 518                                 }
 519                                 break;
 520
 521                                 /*
 522                                  *  Attr-Name1:-Attr-Name2
 523                                  *
 524                                  *  Use Attr-Name1, and if not found,
 525                                  *  use Attr-Name2.
 526                                  */
 527                         case ':':
 528                                 if (p[1] == '-') {
 529                                         p += 2;
 530                                         stop = 1;
 531                                         break;
 532                                 }
 533                                 /* else FALL-THROUGH */
 534
 535                         default:
 536                                 *pa++ = *p++;
 537                                 break;
 538                 }
 539         }
 540         *pa = '\0';
 541
 542         /*
 543          *      Look up almost everything in the new tree of xlat
 544          *      functions.  this makes it a little quicker...
 545          */
 546         if ((c = xlat_find(attrname)) != NULL) {
 547                 if (!c->internal) DEBUG("radius_xlat: Running registered xlat function of module %s for string \'%s\'",
 548                                         c->module, attrname+ c->length + 1);
 549                 retlen = c->do_xlat(c->instance, request, attrname+(c->length+1), q, freespace, func);
 550                 /* If retlen is 0, treat it as not found */
 551                 if (retlen > 0) found = 1;
 552
 553                 /*
 554                  *      Not in the default xlat database.  Must be
 555                  *      a bare attribute number.
 556                  */
 557         } else if ((retlen = xlat_packet(&xlat_inst[1], request, attrname,
 558                                          q, freespace, func)) > 0) {
 559                 found = 1;
 560
 561                 /*
 562                  *      Look up the name, in order to get the correct
 563                  *      debug message.
 564                  */
 565 #ifndef NDEBUG
 566         } else if (dict_attrbyname(attrname) == NULL) {
 567                 /*
 568                  *      No attribute by that name, return an error.
 569                  */
 570                 DEBUG2("WARNING: Attempt to use unknown xlat function, or non-existent attribute in string %%{%s}", attrname);
 571 #endif
 572         } /* else the attribute is known, but not in the request */
 573
 574         /*
 575          * Skip to last '}' if attr is found
 576          * The rest of the stuff within the braces is
 577          * useless if we found what we need
 578          */
 579         if (found) {
 580                 if (do_length) {
 581                         snprintf(q, freespace, "%d", retlen);
 582                         retlen = strlen(q);
 583                 }
 584
 585                 q += retlen;
 586
 587                 while((*p != '\0') && (openbraces > 0)) {
 588                         /*
 589                          *      Handle escapes outside of the loop.
 590                          */
 591                         if (*p == '\\') {
 592                                 p++;
 593                                 if (!*p) break;
 594                                 p++; /* get & ignore next character */
 595                                 continue;
 596                         }
 597
 598                         switch (*p) {
 599                         default:
 600                                 break;
 601
 602                                 /*
 603                                  *  Bare brace
 604                                  */
 605                         case '{':
 606                                 openbraces++;
 607                                 break;
 608
 609                         case '}':
 610                                 openbraces--;
 611                                 break;
 612                         }
 613                         p++;    /* skip the character */
 614                 }
 615         }
 616
 617         *open = openbraces;
 618         *from = p;
 619         *to = q;
 620 }
 621
 622 /*
 623  *  If the caller doesn't pass xlat an escape function, then
 624  *  we use this one.  It simplifies the coding, as the check for
 625  *  func == NULL only happens once.
 626  */
 627 static int xlat_copy(char *out, int outlen, const char *in)
 628 {
 629         int len = 0;
 630
 631         while (*in) {
 632                 /*
 633                  *  Truncate, if too much.
 634                  */
 635                 if (len >= outlen) {
 636                         break;
 637                 }
 638
 639                 /*
 640                  *  Copy data.
 641                  *
 642                  *  FIXME: Do escaping of bad stuff!
 643                  */
 644                 *out = *in;
 645
 646                 out++;
 647                 in++;
 648                 len++;
 649         }
 650
 651         *out = '\0';
 652         return len;
 653 }
 654
 655 /*
 656  *      Replace %<whatever> in a string.
 657  *
 658  *      See 'doc/variables.txt' for more information.
 659  */
 660 int radius_xlat(char *out, int outlen, const char *fmt,
 661                 REQUEST *request, RADIUS_ESCAPE_STRING func)
 662 {
 663         int i, c,freespace;
 664         const char *p;
 665         char *q;
 666         VALUE_PAIR *tmp;
 667         struct tm *TM, s_TM;
 668         char tmpdt[40]; /* For temporary storing of dates */
 669         int openbraces=0;
 670
 671         /*
 672          *      Catch bad modules.
 673          */
 674         if (!fmt || !out || !request) return 0;
 675
 676         /*
 677          *  Ensure that we always have an escaping function.
 678          */
 679         if (func == NULL) {
 680                 func = xlat_copy;
 681         }
 682
 683         q = out;
 684         p = fmt;
 685         while (*p) {
 686                 /* Calculate freespace in output */
 687                 freespace = outlen - (q - out);
 688                 if (freespace <= 1)
 689                         break;
 690                 c = *p;
 691
 692                 if ((c != '%') && (c != '$') && (c != '\\')) {
 693                         /*
 694                          * We check if we're inside an open brace.  If we are
 695                          * then we assume this brace is NOT literal, but is
 696                          * a closing brace and apply it
 697                          */
 698                         if ((c == '}') && openbraces) {
 699                                 openbraces--;
 700                                 p++; /* skip it */
 701                                 continue;
 702                         }
 703                         *q++ = *p++;
 704                         continue;
 705                 }
 706
 707                 /*
 708                  *      There's nothing after this character, copy
 709                  *      the last '%' or "$' or '\\' over to the output
 710                  *      buffer, and exit.
 711                  */
 712                 if (*++p == '\0') {
 713                         *q++ = c;
 714                         break;
 715                 }
 716
 717                 if (c == '\\') {
 718                         switch(*p) {
 719                         case '\\':
 720                                 *q++ = *p;
 721                                 break;
 722                         case 't':
 723                                 *q++ = '\t';
 724                                 break;
 725                         case 'n':
 726                                 *q++ = '\n';
 727                                 break;
 728                         default:
 729                                 *q++ = c;
 730                                 *q++ = *p;
 731                                 break;
 732                         }
 733                         p++;
 734
 735                         /*
 736                          *      Hmmm... ${User-Name} is a synonym for
 737                          *      %{User-Name}.
 738                          *
 739                          *      Why, exactly?
 740                          */
 741                 } else if (c == '$') switch(*p) {
 742                         case '{': /* Attribute by Name */
 743                                 decode_attribute(&p, &q, freespace, &openbraces, request, func);
 744                                 break;
 745                         default:
 746                                 *q++ = c;
 747                                 *q++ = *p++;
 748                                 break;
 749
 750                 } else if (c == '%') switch(*p) {
 751                         case '{':
 752                                 decode_attribute(&p, &q, freespace, &openbraces, request, func);
 753                                 break;
 754
 755                         case '%':
 756                                 *q++ = *p++;
 757                                 break;
 758                         case 'a': /* Protocol: */
 759                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_PROTOCOL),PW_TYPE_INTEGER, func);
 760                                 p++;
 761                                 break;
 762                         case 'c': /* Callback-Number */
 763                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_CALLBACK_NUMBER),PW_TYPE_STRING, func);
 764                                 p++;
 765                                 break;
 766                         case 'd': /* request day */
 767                                 TM = localtime_r(&request->timestamp, &s_TM);
 768                                 strftime(tmpdt,sizeof(tmpdt),"%d",TM);
 769                                 strNcpy(q,tmpdt,freespace);
 770                                 q += strlen(q);
 771                                 p++;
 772                                 break;
 773                         case 'f': /* Framed IP address */
 774                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_IP_ADDRESS),PW_TYPE_IPADDR, func);
 775                                 p++;
 776                                 break;
 777                         case 'i': /* Calling station ID */
 778                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_CALLING_STATION_ID),PW_TYPE_STRING, func);
 779                                 p++;
 780                                 break;
 781                         case 'l': /* request timestamp */
 782                                 snprintf(tmpdt, sizeof(tmpdt), "%lu",
 783                                          (unsigned long) request->timestamp);
 784                                 strNcpy(q,tmpdt,freespace);
 785                                 q += strlen(q);
 786                                 p++;
 787                                 break;
 788                         case 'm': /* request month */
 789                                 TM = localtime_r(&request->timestamp, &s_TM);
 790                                 strftime(tmpdt,sizeof(tmpdt),"%m",TM);
 791                                 strNcpy(q,tmpdt,freespace);
 792                                 q += strlen(q);
 793                                 p++;
 794                                 break;
 795                         case 'n': /* NAS IP address */
 796                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_NAS_IP_ADDRESS),PW_TYPE_IPADDR, func);
 797                                 p++;
 798                                 break;
 799                         case 'p': /* Port number */
 800                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_NAS_PORT),PW_TYPE_INTEGER, func);
 801                                 p++;
 802                                 break;
 803                         case 's': /* Speed */
 804                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_CONNECT_INFO),PW_TYPE_STRING, func);
 805                                 p++;
 806                                 break;
 807                         case 't': /* request timestamp */
 808                                 CTIME_R(&request->timestamp, q, freespace);
 809                                 q += strlen(q);
 810                                 p++;
 811                                 break;
 812                         case 'u': /* User name */
 813                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_USER_NAME),PW_TYPE_STRING, func);
 814                                 p++;
 815                                 break;
 816                         case 'A': /* radacct_dir */
 817                                 strNcpy(q,radacct_dir,freespace-1);
 818                                 q += strlen(q);
 819                                 p++;
 820                                 break;
 821                         case 'C': /* ClientName */
 822                                 strNcpy(q,client_name(request->packet->src_ipaddr),freespace-1);
 823                                 q += strlen(q);
 824                                 p++;
 825                                 break;
 826                         case 'D': /* request date */
 827                                 TM = localtime_r(&request->timestamp, &s_TM);
 828                                 strftime(tmpdt,sizeof(tmpdt),"%Y%m%d",TM);
 829                                 strNcpy(q,tmpdt,freespace);
 830                                 q += strlen(q);
 831                                 p++;
 832                                 break;
 833                         case 'H': /* request hour */
 834                                 TM = localtime_r(&request->timestamp, &s_TM);
 835                                 strftime(tmpdt,sizeof(tmpdt),"%H",TM);
 836                                 strNcpy(q,tmpdt,freespace);
 837                                 q += strlen(q);
 838                                 p++;
 839                                 break;
 840                         case 'L': /* radlog_dir */
 841                                 strNcpy(q,radlog_dir,freespace-1);
 842                                 q += strlen(q);
 843                                 p++;
 844                                 break;
 845                         case 'M': /* MTU */
 846                                 q += valuepair2str(q,freespace,pairfind(request->reply->vps,PW_FRAMED_MTU),PW_TYPE_INTEGER, func);
 847                                 p++;
 848                                 break;
 849                         case 'R': /* radius_dir */
 850                                 strNcpy(q,radius_dir,freespace-1);
 851                                 q += strlen(q);
 852                                 p++;
 853                                 break;
 854                         case 'S': /* request timestamp in SQL format*/
 855                                 TM = localtime_r(&request->timestamp, &s_TM);
 856                                 strftime(tmpdt,sizeof(tmpdt),"%Y-%m-%d %H:%M:%S",TM);
 857                                 strNcpy(q,tmpdt,freespace);
 858                                 q += strlen(q);
 859                                 p++;
 860                                 break;
 861                         case 'T': /* request timestamp */
 862                                 TM = localtime_r(&request->timestamp, &s_TM);
 863                                 strftime(tmpdt,sizeof(tmpdt),"%Y-%m-%d-%H.%M.%S.000000",TM);
 864                                 strNcpy(q,tmpdt,freespace);
 865                                 q += strlen(q);
 866                                 p++;
 867                                 break;
 868                         case 'U': /* Stripped User name */
 869                                 q += valuepair2str(q,freespace,pairfind(request->packet->vps,PW_STRIPPED_USER_NAME),PW_TYPE_STRING, func);
 870                                 p++;
 871                                 break;
 872                         case 'V': /* Request-Authenticator */
 873                                 if (request->packet->verified)
 874                                         strNcpy(q,"Verified",freespace-1);
 875                                 else
 876                                         strNcpy(q,"None",freespace-1);
 877                                 q += strlen(q);
 878                                 p++;
 879                                 break;
 880                         case 'Y': /* request year */
 881                                 TM = localtime_r(&request->timestamp, &s_TM);
 882                                 strftime(tmpdt,sizeof(tmpdt),"%Y",TM);
 883                                 strNcpy(q,tmpdt,freespace);
 884                                 q += strlen(q);
 885                                 p++;
 886                                 break;
 887                         case 'Z': /* Full request pairs except password */
 888                                 tmp = request->packet->vps;
 889                                 while (tmp && (freespace > 3)) {
 890                                         if (tmp->attribute != PW_PASSWORD) {
 891                                                 *q++ = '\t';
 892                                                 i = vp_prints(q,freespace-2,tmp);
 893                                                 q += i;
 894                                                 freespace -= (i+2);
 895                                                 *q++ = '\n';
 896                                         }
 897                                         tmp = tmp->next;
 898                                 }
 899                                 p++;
 900                                 break;
 901                         default:
 902                                 DEBUG2("WARNING: Unknown variable '%%%c': See 'doc/variables.txt'", *p);
 903                                 if (freespace > 2) {
 904                                         *q++ = '%';
 905                                         *q++ = *p++;
 906                                 }
 907                                 break;
 908                 }
 909         }
 910         *q = '\0';
 911
 912         DEBUG2("radius_xlat:  '%s'", out);
 913
 914         return strlen(out);
 915 }