citadel/netconfig.c

   1 /*
   2  * This module handles shared rooms, inter-Citadel mail, and outbound
   3  * mailing list processing.
   4  *
   5  * Copyright (c) 2000-2016 by the citadel.org team
   6  *
   7  * This program is open source software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License, version 3.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  */
  16
  17 #include "sysdep.h"
  18 #include <stdio.h>
  19 #include <sys/types.h>
  20 #include <dirent.h>
  21
  22 #ifdef HAVE_SYSCALL_H
  23 # include <syscall.h>
  24 #else
  25 # if HAVE_SYS_SYSCALL_H
  26 #  include <sys/syscall.h>
  27 # endif
  28 #endif
  29 #include <dirent.h>
  30
  31 #include <libcitadel.h>
  32
  33 #include "include/ctdl_module.h"
  34 #include "serv_extensions.h"
  35 #include "config.h"
  36
  37 void vFreeRoomNetworkStruct(void *vOneRoomNetCfg);
  38 void FreeRoomNetworkStructContent(OneRoomNetCfg *OneRNCfg);
  39
  40 HashList *CfgTypeHash = NULL;
  41 HashList *RoomConfigs = NULL;
  42 /*-----------------------------------------------------------------------------*
  43  *                       Per room network configs                              *
  44  *-----------------------------------------------------------------------------*/
  45 void RegisterRoomCfgType(const char* Name, long len, RoomNetCfg eCfg, CfgLineParser p, int uniq,  int nSegments, CfgLineSerializer s, CfgLineDeAllocator d)
  46 {
  47         CfgLineType *pCfg;
  48
  49         pCfg = (CfgLineType*) malloc(sizeof(CfgLineType));
  50         pCfg->Parser = p;
  51         pCfg->Serializer = s;
  52         pCfg->DeAllocator = d;
  53         pCfg->C = eCfg;
  54         pCfg->Str.Key = Name;
  55         pCfg->Str.len = len;
  56         pCfg->IsSingleLine = uniq;
  57         pCfg->nSegments = nSegments;
  58         if (CfgTypeHash == NULL)
  59                 CfgTypeHash = NewHash(1, NULL);
  60         Put(CfgTypeHash, Name, len, pCfg, NULL);
  61 }
  62
  63
  64 const CfgLineType *GetCfgTypeByStr(const char *Key, long len)
  65 {
  66         void *pv;
  67
  68         if (GetHash(CfgTypeHash, Key, len, &pv) && (pv != NULL))
  69         {
  70                 return (const CfgLineType *) pv;
  71         }
  72         else
  73         {
  74                 return NULL;
  75         }
  76 }
  77
  78 const CfgLineType *GetCfgTypeByEnum(RoomNetCfg eCfg, HashPos *It)
  79 {
  80         const char *Key;
  81         long len;
  82         void *pv;
  83         CfgLineType *pCfg;
  84
  85         RewindHashPos(CfgTypeHash, It, 1);
  86         while (GetNextHashPos(CfgTypeHash, It, &len, &Key, &pv) && (pv != NULL))
  87         {
  88                 pCfg = (CfgLineType*) pv;
  89                 if (pCfg->C == eCfg)
  90                         return pCfg;
  91         }
  92         return NULL;
  93 }
  94 void ParseGeneric(const CfgLineType *ThisOne, StrBuf *Line, const char *LinePos, OneRoomNetCfg *OneRNCfg)
  95 {
  96         RoomNetCfgLine *nptr;
  97         int i;
  98
  99         nptr = (RoomNetCfgLine *)
 100                 malloc(sizeof(RoomNetCfgLine));
 101         nptr->next = OneRNCfg->NetConfigs[ThisOne->C];
 102         nptr->Value = malloc(sizeof(StrBuf*) * ThisOne->nSegments);
 103         nptr->nValues = 0;
 104         memset(nptr->Value, 0, sizeof(StrBuf*) * ThisOne->nSegments);
 105         if (ThisOne->nSegments == 1)
 106         {
 107                 nptr->Value[0] = NewStrBufPlain(LinePos, StrLength(Line) - ( LinePos - ChrPtr(Line)) );
 108                 nptr->nValues = 1;
 109         }
 110         else for (i = 0; i < ThisOne->nSegments; i++)
 111         {
 112                 nptr->nValues++;
 113                 nptr->Value[i] = NewStrBufPlain(NULL, StrLength(Line) - ( LinePos - ChrPtr(Line)) );
 114                 StrBufExtract_NextToken(nptr->Value[i], Line, &LinePos, '|');
 115         }
 116
 117         OneRNCfg->NetConfigs[ThisOne->C] = nptr;
 118 }
 119
 120 void SerializeGeneric(const CfgLineType *ThisOne, StrBuf *OutputBuffer, OneRoomNetCfg *OneRNCfg, RoomNetCfgLine *data)
 121 {
 122         int i;
 123
 124         StrBufAppendBufPlain(OutputBuffer, CKEY(ThisOne->Str), 0);
 125         StrBufAppendBufPlain(OutputBuffer, HKEY("|"), 0);
 126         for (i = 0; i < ThisOne->nSegments; i++)
 127         {
 128                 StrBufAppendBuf(OutputBuffer, data->Value[i], 0);
 129                 if (i + 1 < ThisOne->nSegments)
 130                         StrBufAppendBufPlain(OutputBuffer, HKEY("|"), 0);
 131         }
 132         StrBufAppendBufPlain(OutputBuffer, HKEY("\n"), 0);
 133 }
 134
 135 void DeleteGenericCfgLine(const CfgLineType *ThisOne, RoomNetCfgLine **data)
 136 {
 137         int i;
 138
 139         if (*data == NULL)
 140                 return;
 141
 142         for (i = 0; i < (*data)->nValues; i++)
 143         {
 144                 FreeStrBuf(&(*data)->Value[i]);
 145         }
 146         free ((*data)->Value);
 147         free(*data);
 148         *data = NULL;
 149 }
 150 RoomNetCfgLine *DuplicateOneGenericCfgLine(const RoomNetCfgLine *data)
 151 {
 152         int i;
 153         RoomNetCfgLine *NewData;
 154
 155         NewData = (RoomNetCfgLine*)malloc(sizeof(RoomNetCfgLine));
 156         memset(NewData, 0, sizeof(RoomNetCfgLine));
 157         NewData->Value = (StrBuf **)malloc(sizeof(StrBuf*) * data->nValues);
 158         memset(NewData->Value, 0, sizeof(StrBuf*) * data->nValues);
 159
 160         for (i = 0; i < data->nValues; i++)
 161         {
 162                 NewData->Value[i] = NewStrBufDup(data->Value[i]);
 163         }
 164         NewData->nValues = data->nValues;
 165         return NewData;
 166 }
 167 int ReadRoomNetConfigFile(OneRoomNetCfg **pOneRNCfg, char *filename)
 168 {
 169         int fd;
 170         const char *ErrStr = NULL;
 171         const char *Pos;
 172         const CfgLineType *pCfg;
 173         StrBuf *Line;
 174         StrBuf *InStr;
 175         OneRoomNetCfg *OneRNCfg = NULL;
 176
 177         fd = open(filename, O_NONBLOCK|O_RDONLY);
 178         if (fd == -1) {
 179                 *pOneRNCfg = NULL;
 180                 return 0;
 181         }
 182         fchown(fd, CTDLUID, (-1));
 183         fchmod(fd, 0600);
 184
 185         if (*pOneRNCfg != NULL)
 186         {
 187                 OneRNCfg = *pOneRNCfg;
 188                 FreeRoomNetworkStructContent (OneRNCfg);
 189         }
 190         else
 191                 OneRNCfg = malloc(sizeof(OneRoomNetCfg));
 192         memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
 193         *pOneRNCfg = OneRNCfg;
 194         Line = NewStrBuf();
 195         InStr = NewStrBuf();
 196
 197         while (StrBufTCP_read_line(Line, &fd, 0, &ErrStr) >= 0) {
 198                 if (StrLength(Line) == 0)
 199                         continue;
 200                 Pos = NULL;
 201                 StrBufExtract_NextToken(InStr, Line, &Pos, '|');
 202
 203                 pCfg = GetCfgTypeByStr(SKEY(InStr));
 204                 if (pCfg != NULL)
 205                 {
 206                         pCfg->Parser(pCfg, Line, Pos, OneRNCfg);
 207                 }
 208                 else
 209                 {
 210                         if (OneRNCfg->misc == NULL)
 211                         {
 212                                 OneRNCfg->misc = NewStrBufDup(Line);
 213                         }
 214                         else
 215                         {
 216                                 if(StrLength(OneRNCfg->misc) > 0)
 217                                         StrBufAppendBufPlain(OneRNCfg->misc, HKEY("\n"), 0);
 218                                 StrBufAppendBuf(OneRNCfg->misc, Line, 0);
 219                         }
 220                 }
 221         }
 222         if (fd > 0)
 223                 close(fd);
 224         FreeStrBuf(&InStr);
 225         FreeStrBuf(&Line);
 226         return 1;
 227 }
 228
 229 int SaveRoomNetConfigFile(OneRoomNetCfg *OneRNCfg, char *filename)
 230 {
 231         RoomNetCfg eCfg;
 232         StrBuf *Cfg = NULL;
 233         StrBuf *OutBuffer = NULL;
 234         char tempfilename[PATH_MAX];
 235         int TmpFD;
 236         long len;
 237         time_t unixtime;
 238         struct timeval tv;
 239         long reltid; /* if we don't have SYS_gettid, use "random" value */
 240         int rc;
 241         HashPos *CfgIt;
 242
 243         len = strlen(filename);
 244         memcpy(tempfilename, filename, len + 1);
 245
 246 #if defined(HAVE_SYSCALL_H) && defined (SYS_gettid)
 247         reltid = syscall(SYS_gettid);
 248 #endif
 249         gettimeofday(&tv, NULL);
 250         /* Promote to time_t; types differ on some OSes (like darwin) */
 251         unixtime = tv.tv_sec;
 252
 253         sprintf(tempfilename + len, ".%ld-%ld", reltid, unixtime);
 254         errno = 0;
 255         TmpFD = open(tempfilename, O_CREAT|O_EXCL|O_RDWR, S_IRUSR|S_IWUSR);
 256         Cfg = NewStrBuf();
 257         if ((TmpFD < 0) || (errno != 0)) {
 258                 syslog(LOG_CRIT, "ERROR: cannot open %s: %s",
 259                         filename, strerror(errno));
 260                 unlink(tempfilename);
 261                 FreeStrBuf(&Cfg);
 262                 return 0;
 263         }
 264         else {
 265                 OutBuffer = NewStrBuf();
 266                 CfgIt = GetNewHashPos(CfgTypeHash, 1);
 267                 fchown(TmpFD, ctdluid, 0);
 268                 for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
 269                 {
 270                         const CfgLineType *pCfg;
 271                         pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
 272                         if (pCfg->IsSingleLine)
 273                         {
 274                                 pCfg->Serializer(pCfg, OutBuffer, OneRNCfg, NULL);
 275                         }
 276                         else
 277                         {
 278                                 RoomNetCfgLine *pName = OneRNCfg->NetConfigs[pCfg->C];
 279                                 while (pName != NULL)
 280                                 {
 281                                         pCfg->Serializer(pCfg, OutBuffer, OneRNCfg, pName);
 282                                         pName = pName->next;
 283                                 }
 284
 285
 286                         }
 287
 288                 }
 289                 DeleteHashPos(&CfgIt);
 290
 291
 292                 if (OneRNCfg->misc != NULL) {
 293                         StrBufAppendBuf(OutBuffer, OneRNCfg->misc, 0);
 294                 }
 295
 296                 rc = write(TmpFD, ChrPtr(OutBuffer), StrLength(OutBuffer));
 297                 if ((rc >=0 ) && (rc == StrLength(OutBuffer)))
 298                 {
 299                         close(TmpFD);
 300                         rename(tempfilename, filename);
 301                         rc = 1;
 302                 }
 303                 else {
 304                         syslog(LOG_EMERG,
 305                               "unable to write %s; [%s]; not enough space on the disk?",
 306                               tempfilename,
 307                               strerror(errno)
 308                         );
 309                         close(TmpFD);
 310                         unlink(tempfilename);
 311                         rc = 0;
 312                 }
 313                 FreeStrBuf(&OutBuffer);
 314
 315         }
 316         FreeStrBuf(&Cfg);
 317         return rc;
 318 }
 319
 320 void SaveModifiedRooms(struct ctdlroom *qrbuf, void *data, OneRoomNetCfg *OneRNCfg)
 321 {
 322         char filename[PATH_MAX];
 323
 324         if (OneRNCfg->changed)
 325         {
 326                 assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
 327                 SaveRoomNetConfigFile(OneRNCfg, filename);
 328                 OneRNCfg->changed = 0;
 329         }
 330 }
 331 void SaveChangedConfigs(void)
 332 {
 333         CtdlForEachNetCfgRoom(SaveModifiedRooms,
 334                               NULL,
 335                               maxRoomNetCfg);
 336 }
 337
 338
 339 void AddRoomCfgLine(OneRoomNetCfg *OneRNCfg, struct ctdlroom *qrbuf, RoomNetCfg LineType, RoomNetCfgLine *Line)
 340 {
 341         int new = 0;
 342         RoomNetCfgLine **pLine;
 343         char filename[PATH_MAX];
 344
 345         if (OneRNCfg == NULL)
 346         {
 347                 new = 1;
 348                 OneRNCfg = (OneRoomNetCfg*) malloc(sizeof(OneRoomNetCfg));
 349                 memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
 350         }
 351         pLine = &OneRNCfg->NetConfigs[LineType];
 352
 353         while(*pLine != NULL) pLine = &((*pLine)->next);
 354         *pLine = Line;
 355
 356         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
 357         SaveRoomNetConfigFile(OneRNCfg, filename);
 358         OneRNCfg->changed = 0;
 359         if (new)
 360         {
 361                 Put(RoomConfigs, LKEY(qrbuf->QRnumber), OneRNCfg, vFreeRoomNetworkStruct);
 362         }
 363 }
 364
 365 void FreeRoomNetworkStructContent(OneRoomNetCfg *OneRNCfg)
 366 {
 367         RoomNetCfg eCfg;
 368         HashPos *CfgIt;
 369
 370         CfgIt = GetNewHashPos(CfgTypeHash, 1);
 371         for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
 372         {
 373                 const CfgLineType *pCfg;
 374                 RoomNetCfgLine *pNext, *pName;
 375
 376                 pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
 377                 pName= OneRNCfg->NetConfigs[eCfg];
 378                 while (pName != NULL)
 379                 {
 380                         pNext = pName->next;
 381                         if (pCfg != NULL)
 382                         {
 383                                 pCfg->DeAllocator(pCfg, &pName);
 384                         }
 385                         else
 386                         {
 387                                 DeleteGenericCfgLine(NULL, &pName);
 388                         }
 389                         pName = pNext;
 390                 }
 391         }
 392         DeleteHashPos(&CfgIt);
 393
 394         FreeStrBuf(&OneRNCfg->Sender);
 395         FreeStrBuf(&OneRNCfg->RoomInfo);
 396         FreeStrBuf(&OneRNCfg->misc);
 397         memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
 398 }
 399 void vFreeRoomNetworkStruct(void *vOneRoomNetCfg)
 400 {
 401         OneRoomNetCfg *OneRNCfg;
 402         OneRNCfg = (OneRoomNetCfg*)vOneRoomNetCfg;
 403         FreeRoomNetworkStructContent(OneRNCfg);
 404         free(OneRNCfg);
 405 }
 406 void FreeRoomNetworkStruct(OneRoomNetCfg **pOneRNCfg)
 407 {
 408         vFreeRoomNetworkStruct(*pOneRNCfg);
 409         *pOneRNCfg=NULL;
 410 }
 411
 412 OneRoomNetCfg* CtdlGetNetCfgForRoom(long QRNumber)
 413 {
 414         void *pv;
 415         GetHash(RoomConfigs, LKEY(QRNumber), &pv);
 416         return (OneRoomNetCfg*)pv;
 417 }
 418
 419
 420 void LoadAllNetConfigs(void)
 421 {
 422         DIR *filedir = NULL;
 423         struct dirent *d;
 424         struct dirent *filedir_entry;
 425         int d_type = 0;
 426         int d_namelen;
 427         long RoomNumber;
 428         OneRoomNetCfg *OneRNCfg;
 429         int IsNumOnly;
 430         const char *pch;
 431         char path[PATH_MAX];
 432
 433         RoomConfigs = NewHash(1, NULL);
 434         filedir = opendir (ctdl_netcfg_dir);
 435         if (filedir == NULL) {
 436                 return ; /// todo: panic!
 437         }
 438
 439         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 440         if (d == NULL) {
 441                 closedir(filedir);
 442                 return ;
 443         }
 444
 445         while ((readdir_r(filedir, d, &filedir_entry) == 0) &&
 446                (filedir_entry != NULL))
 447         {
 448 #ifdef _DIRENT_HAVE_D_NAMLEN
 449                 d_namelen = filedir_entry->d_namlen;
 450 #else
 451                 d_namelen = strlen(filedir_entry->d_name);
 452 #endif
 453
 454 #ifdef _DIRENT_HAVE_D_TYPE
 455                 d_type = filedir_entry->d_type;
 456 #else
 457
 458 #ifndef DT_UNKNOWN
 459 #define DT_UNKNOWN     0
 460 #define DT_DIR         4
 461 #define DT_REG         8
 462 #define DT_LNK         10
 463
 464 #define IFTODT(mode)   (((mode) & 0170000) >> 12)
 465 #define DTTOIF(dirtype)        ((dirtype) << 12)
 466 #endif
 467                 d_type = DT_UNKNOWN;
 468 #endif
 469                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 470                         continue; /* Ignore backup files... */
 471
 472                 if ((d_namelen == 1) &&
 473                     (filedir_entry->d_name[0] == '.'))
 474                         continue;
 475
 476                 if ((d_namelen == 2) &&
 477                     (filedir_entry->d_name[0] == '.') &&
 478                     (filedir_entry->d_name[1] == '.'))
 479                         continue;
 480
 481                 snprintf(path, PATH_MAX, "%s/%s",
 482                          ctdl_netcfg_dir, filedir_entry->d_name);
 483
 484                 if (d_type == DT_UNKNOWN) {
 485                         struct stat s;
 486                         if (lstat(path, &s) == 0) {
 487                                 d_type = IFTODT(s.st_mode);
 488                         }
 489                 }
 490
 491                 switch (d_type)
 492                 {
 493                 case DT_DIR:
 494                         break;
 495                 case DT_LNK: /* TODO: check whether its a file or a directory */
 496                 case DT_REG:
 497                         IsNumOnly = 1;
 498                         pch = filedir_entry->d_name;
 499                         while (*pch != '\0')
 500                         {
 501                                 if (!isdigit(*pch))
 502                                 {
 503                                         IsNumOnly = 0;
 504                                 }
 505                                 pch ++;
 506                         }
 507                         if (IsNumOnly)
 508                         {
 509                                 OneRNCfg = NULL;
 510                                 RoomNumber = atol(filedir_entry->d_name);
 511                                 ReadRoomNetConfigFile(&OneRNCfg, path);
 512
 513                                 if (OneRNCfg != NULL)
 514                                         Put(RoomConfigs, LKEY(RoomNumber), OneRNCfg, vFreeRoomNetworkStruct);
 515                         }
 516                         break;
 517                 default:
 518                         break;
 519                 }
 520
 521
 522         }
 523         free(d);
 524         closedir(filedir);
 525 }
 526
 527
 528 /*-----------------------------------------------------------------------------*
 529  *              Per room network configs : exchange with client                *
 530  *-----------------------------------------------------------------------------*/
 531 void cmd_gnet(char *argbuf)
 532 {
 533         char filename[PATH_MAX];
 534         char buf[SIZ];
 535         FILE *fp;
 536
 537
 538         if (!IsEmptyStr(argbuf))
 539         {
 540                 if (CtdlAccessCheck(ac_aide)) return;
 541                 if (strcmp(argbuf, FILE_MAILALIAS))
 542                 {
 543                         cprintf("%d No such file or directory\n",
 544                                 ERROR + INTERNAL_ERROR);
 545                         return;
 546                 }
 547                 safestrncpy(filename, file_mail_aliases, sizeof(filename));
 548                 cprintf("%d Settings for <%s>\n",
 549                         LISTING_FOLLOWS,
 550                         filename);
 551         }
 552         else
 553         {
 554                 if ( (CC->room.QRflags & QR_MAILBOX) && (CC->user.usernum == atol(CC->room.QRname)) ) {
 555                         /* users can edit the netconfigs for their own mailbox rooms */
 556                 }
 557                 else if (CtdlAccessCheck(ac_room_aide)) return;
 558
 559                 assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
 560                 cprintf("%d Network settings for room #%ld <%s>\n",
 561                         LISTING_FOLLOWS,
 562                         CC->room.QRnumber, CC->room.QRname);
 563         }
 564
 565         fp = fopen(filename, "r");
 566         if (fp != NULL) {
 567                 while (fgets(buf, sizeof buf, fp) != NULL) {
 568                         buf[strlen(buf)-1] = 0;
 569                         cprintf("%s\n", buf);
 570                 }
 571                 fclose(fp);
 572         }
 573
 574         cprintf("000\n");
 575 }
 576
 577 #define nForceAliases 5
 578 const ConstStr ForceAliases[nForceAliases] = {
 579         {HKEY("bbs,")},
 580         {HKEY("root,")},
 581         {HKEY("Auto,")},
 582         {HKEY("postmaster,")},
 583         {HKEY("abuse,")}
 584 };
 585 void cmd_snet(char *argbuf)
 586 {
 587         struct CitContext *CCC = CC;
 588         char tempfilename[PATH_MAX];
 589         char filename[PATH_MAX];
 590         int TmpFD;
 591         StrBuf *Line;
 592         struct stat StatBuf;
 593         long len;
 594         int rc;
 595         int IsMailAlias = 0;
 596         int MailAliasesFound[nForceAliases];
 597
 598         unbuffer_output();
 599
 600         if (!IsEmptyStr(argbuf))
 601         {
 602                 if (CtdlAccessCheck(ac_aide)) return;
 603                 if (strcmp(argbuf, FILE_MAILALIAS))
 604                 {
 605                         cprintf("%d No such file or directory\n",
 606                                 ERROR + INTERNAL_ERROR);
 607                         return;
 608                 }
 609                 len = safestrncpy(filename, file_mail_aliases, sizeof(filename));
 610                 memset(MailAliasesFound, 0, sizeof(MailAliasesFound));
 611                 memcpy(tempfilename, filename, len + 1);
 612                 IsMailAlias = 1;
 613         }
 614         else
 615         {
 616                 if ( (CCC->room.QRflags & QR_MAILBOX) && (CCC->user.usernum == atol(CCC->room.QRname)) ) {
 617                         /* users can edit the netconfigs for their own mailbox rooms */
 618                 }
 619                 else if (CtdlAccessCheck(ac_room_aide)) return;
 620
 621                 len = assoc_file_name(filename, sizeof filename, &CCC->room, ctdl_netcfg_dir);
 622                 memcpy(tempfilename, filename, len + 1);
 623         }
 624         memset(&StatBuf, 0, sizeof(struct stat));
 625         if ((stat(filename, &StatBuf)  == -1) || (StatBuf.st_size == 0))
 626                 StatBuf.st_size = 80; /* Not there or empty? guess 80 chars line. */
 627
 628         sprintf(tempfilename + len, ".%d", CCC->cs_pid);
 629         errno = 0;
 630         TmpFD = open(tempfilename, O_CREAT|O_EXCL|O_RDWR, S_IRUSR|S_IWUSR);
 631
 632         if ((TmpFD > 0) && (errno == 0))
 633         {
 634                 char *tmp = malloc(StatBuf.st_size * 2);
 635                 memset(tmp, ' ', StatBuf.st_size * 2);
 636                 rc = write(TmpFD, tmp, StatBuf.st_size * 2);
 637                 free(tmp);
 638                 if ((rc <= 0) || (rc != StatBuf.st_size * 2))
 639                 {
 640                         close(TmpFD);
 641                         cprintf("%d Unable to allocate the space required for %s: %s\n",
 642                                 ERROR + INTERNAL_ERROR,
 643                                 tempfilename,
 644                                 strerror(errno));
 645                         unlink(tempfilename);
 646                         return;
 647                 }
 648                 lseek(TmpFD, SEEK_SET, 0);
 649         }
 650         else {
 651                 cprintf("%d Unable to allocate the space required for %s: %s\n",
 652                         ERROR + INTERNAL_ERROR,
 653                         tempfilename,
 654                         strerror(errno));
 655                 unlink(tempfilename);
 656                 return;
 657         }
 658         Line = NewStrBuf();
 659
 660         cprintf("%d %s\n", SEND_LISTING, tempfilename);
 661
 662         len = 0;
 663         while (rc = CtdlClientGetLine(Line),
 664                (rc >= 0))
 665         {
 666                 if ((rc == 3) && (strcmp(ChrPtr(Line), "000") == 0))
 667                         break;
 668                 if (IsMailAlias)
 669                 {
 670                         int i;
 671
 672                         for (i = 0; i < nForceAliases; i++)
 673                         {
 674                                 if ((!MailAliasesFound[i]) &&
 675                                     (strncmp(ForceAliases[i].Key,
 676                                              ChrPtr(Line),
 677                                              ForceAliases[i].len) == 0)
 678                                         )
 679                                     {
 680                                             MailAliasesFound[i] = 1;
 681                                             break;
 682                                     }
 683                         }
 684                 }
 685
 686                 StrBufAppendBufPlain(Line, HKEY("\n"), 0);
 687                 write(TmpFD, ChrPtr(Line), StrLength(Line));
 688                 len += StrLength(Line);
 689         }
 690         FreeStrBuf(&Line);
 691         ftruncate(TmpFD, len);
 692         close(TmpFD);
 693
 694         if (IsMailAlias)
 695         {
 696                 int i, state;
 697                 /*
 698                  * Sanity check whether all aliases required by the RFCs were set
 699                  * else bail out.
 700                  */
 701                 state = 1;
 702                 for (i = 0; i < nForceAliases; i++)
 703                 {
 704                         if (!MailAliasesFound[i])
 705                                 state = 0;
 706                 }
 707                 if (state == 0)
 708                 {
 709                         cprintf("%d won't do this - you're missing an RFC required alias.\n",
 710                                 ERROR + INTERNAL_ERROR);
 711                         unlink(tempfilename);
 712                         return;
 713                 }
 714         }
 715
 716         /* Now copy the temp file to its permanent location.
 717          * (We copy instead of link because they may be on different filesystems)
 718          */
 719         begin_critical_section(S_NETCONFIGS);
 720         rename(tempfilename, filename);
 721         if (!IsMailAlias)
 722         {
 723                 OneRoomNetCfg *RNCfg;
 724                 RNCfg = CtdlGetNetCfgForRoom(CCC->room.QRnumber);
 725                 if (RNCfg != NULL)
 726                 {
 727                         ReadRoomNetConfigFile(&RNCfg, filename);
 728                 }
 729                 else
 730                 {
 731                         ReadRoomNetConfigFile(&RNCfg, filename);
 732                         Put(RoomConfigs, LKEY(CCC->room.QRnumber), RNCfg, vFreeRoomNetworkStruct);
 733                 }
 734
 735                 PerformRoomHooks(&CCC->room);
 736         }
 737         end_critical_section(S_NETCONFIGS);
 738 }
 739
 740
 741 /*-----------------------------------------------------------------------------*
 742  *                       Per node network configs                              *
 743  *-----------------------------------------------------------------------------*/
 744 void DeleteCtdlNodeConf(void *vNode)
 745 {
 746         CtdlNodeConf *Node = (CtdlNodeConf*) vNode;
 747         FreeStrBuf(&Node->NodeName);
 748         FreeStrBuf(&Node->Secret);
 749         FreeStrBuf(&Node->Host);
 750         FreeStrBuf(&Node->Port);
 751         free(Node);
 752 }
 753
 754 CtdlNodeConf *NewNode(StrBuf *SerializedNode)
 755 {
 756         const char *Pos = NULL;
 757         CtdlNodeConf *Node;
 758
 759         /* we need at least 4 pipes and some other text so its invalid. */
 760         if (StrLength(SerializedNode) < 8)
 761                 return NULL;
 762         Node = (CtdlNodeConf *) malloc(sizeof(CtdlNodeConf));
 763
 764         Node->DeleteMe = 0;
 765
 766         Node->NodeName=NewStrBuf();
 767         StrBufExtract_NextToken(Node->NodeName, SerializedNode, &Pos, '|');
 768
 769         Node->Secret=NewStrBuf();
 770         StrBufExtract_NextToken(Node->Secret, SerializedNode, &Pos, '|');
 771
 772         Node->Host=NewStrBuf();
 773         StrBufExtract_NextToken(Node->Host, SerializedNode, &Pos, '|');
 774
 775         Node->Port=NewStrBuf();
 776         StrBufExtract_NextToken(Node->Port, SerializedNode, &Pos, '|');
 777         return Node;
 778 }
 779
 780
 781 /*
 782  * Load or refresh the Citadel network (IGnet) configuration for this node.
 783  */
 784 HashList* CtdlLoadIgNetCfg(void)
 785 {
 786         const char *LinePos;
 787         char       *Cfg;
 788         StrBuf     *Buf;
 789         StrBuf     *LineBuf;
 790         HashList   *Hash;
 791         CtdlNodeConf   *Node;
 792
 793         Cfg =  CtdlGetSysConfig(IGNETCFG);
 794         if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
 795                 if (Cfg != NULL)
 796                         free(Cfg);
 797                 return NULL;
 798         }
 799
 800         Hash = NewHash(1, NULL);
 801         Buf = NewStrBufPlain(Cfg, -1);
 802         free(Cfg);
 803         LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
 804         LinePos = NULL;
 805         do
 806         {
 807                 StrBufSipLine(LineBuf, Buf, &LinePos);
 808                 if (StrLength(LineBuf) != 0) {
 809                         Node = NewNode(LineBuf);
 810                         if (Node != NULL) {
 811                                 Put(Hash, SKEY(Node->NodeName), Node, DeleteCtdlNodeConf);
 812                         }
 813                 }
 814         } while (LinePos != StrBufNOTNULL);
 815         FreeStrBuf(&Buf);
 816         FreeStrBuf(&LineBuf);
 817         return Hash;
 818 }
 819
 820
 821 int is_recipient(OneRoomNetCfg *RNCfg, const char *Name)
 822 {
 823         const RoomNetCfg RecipientCfgs[] = {
 824                 listrecp,
 825                 digestrecp,
 826                 participate,
 827                 maxRoomNetCfg
 828         };
 829         int i;
 830         RoomNetCfgLine *nptr;
 831         size_t len;
 832
 833         len = strlen(Name);
 834         i = 0;
 835         while (RecipientCfgs[i] != maxRoomNetCfg)
 836         {
 837                 nptr = RNCfg->NetConfigs[RecipientCfgs[i]];
 838
 839                 while (nptr != NULL)
 840                 {
 841                         if ((StrLength(nptr->Value[0]) == len) &&
 842                             (!strcmp(Name, ChrPtr(nptr->Value[0]))))
 843                         {
 844                                 return 1;
 845                         }
 846                         nptr = nptr->next;
 847                 }
 848                 i++;
 849         }
 850         return 0;
 851 }
 852
 853
 854
 855 int CtdlNetconfigCheckRoomaccess(
 856         char *errmsgbuf,
 857         size_t n,
 858         const char* RemoteIdentifier)
 859 {
 860         OneRoomNetCfg *RNCfg;
 861         int found;
 862
 863         if (RemoteIdentifier == NULL)
 864         {
 865                 snprintf(errmsgbuf, n, "Need sender to permit access.");
 866                 return (ERROR + USERNAME_REQUIRED);
 867         }
 868
 869         begin_critical_section(S_NETCONFIGS);
 870         RNCfg = CtdlGetNetCfgForRoom (CC->room.QRnumber);
 871         if (RNCfg == NULL)
 872         {
 873                 end_critical_section(S_NETCONFIGS);
 874                 snprintf(errmsgbuf, n,
 875                          "This mailing list only accepts posts from subscribers.");
 876                 return (ERROR + NO_SUCH_USER);
 877         }
 878         found = is_recipient (RNCfg, RemoteIdentifier);
 879         end_critical_section(S_NETCONFIGS);
 880
 881         if (found) {
 882                 return (0);
 883         }
 884         else {
 885                 snprintf(errmsgbuf, n,
 886                          "This mailing list only accepts posts from subscribers.");
 887                 return (ERROR + NO_SUCH_USER);
 888         }
 889 }
 890
 891
 892
 893 /*
 894  * cmd_netp() - authenticate to the server as another Citadel node polling
 895  *            for network traffic
 896  */
 897 void cmd_netp(char *cmdbuf)
 898 {
 899         struct CitContext *CCC = CC;
 900         HashList *working_ignetcfg;
 901         char *node;
 902         StrBuf *NodeStr;
 903         long nodelen;
 904         int v;
 905         long lens[2];
 906         const char *strs[2];
 907
 908         const StrBuf *secret = NULL;
 909         const StrBuf *nexthop = NULL;
 910         char err_buf[SIZ] = "";
 911
 912         /* Authenticate */
 913         node = CCC->curr_user;
 914         nodelen = extract_token(CCC->curr_user, cmdbuf, 0, '|', sizeof CCC->curr_user);
 915         NodeStr = NewStrBufPlain(node, nodelen);
 916         /* load the IGnet Configuration to check node validity */
 917         working_ignetcfg = CtdlLoadIgNetCfg();
 918         v = CtdlIsValidNode(&nexthop, &secret, NodeStr, working_ignetcfg, NULL);
 919         if (v != 0) {
 920                 snprintf(err_buf, sizeof err_buf,
 921                         "An unknown Citadel server called \"%s\" attempted to connect from %s [%s].\n",
 922                         node, CCC->cs_host, CCC->cs_addr
 923                 );
 924                 syslog(LOG_WARNING, "%s", err_buf);
 925                 cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
 926
 927                 strs[0] = CCC->cs_addr;
 928                 lens[0] = strlen(CCC->cs_addr);
 929
 930                 strs[1] = "SRV_UNKNOWN";
 931                 lens[1] = sizeof("SRV_UNKNOWN") - 1;
 932
 933                 CtdlAideFPMessage(
 934                         err_buf,
 935                         "IGNet Networking.",
 936                         2, strs, (long*) &lens,
 937                         CCC->cs_pid, 0,
 938                         time(NULL));
 939
 940                 DeleteHash(&working_ignetcfg);
 941                 FreeStrBuf(&NodeStr);
 942                 return;
 943         }
 944
 945         extract_token(CCC->user.password, cmdbuf, 1, '|', sizeof CCC->user.password);
 946         if (strcasecmp(CCC->user.password, ChrPtr(secret))) {
 947                 snprintf(err_buf, sizeof err_buf,
 948                         "A Citadel server at %s [%s] failed to authenticate as network node \"%s\".\n",
 949                         CCC->cs_host, CCC->cs_addr, node
 950                 );
 951                 syslog(LOG_WARNING, "%s", err_buf);
 952                 cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
 953
 954                 strs[0] = CCC->cs_addr;
 955                 lens[0] = strlen(CCC->cs_addr);
 956
 957                 strs[1] = "SRV_PW";
 958                 lens[1] = sizeof("SRV_PW") - 1;
 959
 960                 CtdlAideFPMessage(
 961                         err_buf,
 962                         "IGNet Networking.",
 963                         2, strs,
 964                         (long*) &lens,
 965                         CCC->cs_pid, 0,
 966                         time(NULL));
 967
 968                 DeleteHash(&working_ignetcfg);
 969                 FreeStrBuf(&NodeStr);
 970                 return;
 971         }
 972
 973         if (CtdlNetworkTalkingTo(node, nodelen, NTT_CHECK)) {
 974                 syslog(LOG_WARNING, "Duplicate session for network node <%s>", node);
 975                 cprintf("%d Already talking to %s right now\n", ERROR + RESOURCE_BUSY, node);
 976                 DeleteHash(&working_ignetcfg);
 977                 FreeStrBuf(&NodeStr);
 978                 return;
 979         }
 980         nodelen = safestrncpy(CCC->net_node, node, sizeof CCC->net_node);
 981         CtdlNetworkTalkingTo(CCC->net_node, nodelen, NTT_ADD);
 982         syslog(LOG_NOTICE, "Network node <%s> logged in from %s [%s]",
 983                 CCC->net_node, CCC->cs_host, CCC->cs_addr
 984         );
 985         cprintf("%d authenticated as network node '%s'\n", CIT_OK, CCC->net_node);
 986         DeleteHash(&working_ignetcfg);
 987         FreeStrBuf(&NodeStr);
 988 }
 989
 990
 991 /*-----------------------------------------------------------------------------*
 992  *                 Network maps: evaluate other nodes                          *
 993  *-----------------------------------------------------------------------------*/
 994
 995 void DeleteNetMap(void *vNetMap)
 996 {
 997         CtdlNetMap *TheNetMap = (CtdlNetMap*) vNetMap;
 998         FreeStrBuf(&TheNetMap->NodeName);
 999         FreeStrBuf(&TheNetMap->NextHop);
1000         free(TheNetMap);
1001 }
1002
1003 CtdlNetMap *NewNetMap(StrBuf *SerializedNetMap)
1004 {
1005         const char *Pos = NULL;
1006         CtdlNetMap *NM;
1007
1008         /* we need at least 3 pipes and some other text so its invalid. */
1009         if (StrLength(SerializedNetMap) < 6)
1010                 return NULL;
1011         NM = (CtdlNetMap *) malloc(sizeof(CtdlNetMap));
1012
1013         NM->NodeName=NewStrBuf();
1014         StrBufExtract_NextToken(NM->NodeName, SerializedNetMap, &Pos, '|');
1015
1016         NM->lastcontact = StrBufExtractNext_long(SerializedNetMap, &Pos, '|');
1017
1018         NM->NextHop=NewStrBuf();
1019         StrBufExtract_NextToken(NM->NextHop, SerializedNetMap, &Pos, '|');
1020
1021         return NM;
1022 }
1023
1024 HashList* CtdlReadNetworkMap(void)
1025 {
1026         const char *LinePos;
1027         char       *Cfg;
1028         StrBuf     *Buf;
1029         StrBuf     *LineBuf;
1030         HashList   *Hash;
1031         CtdlNetMap     *TheNetMap;
1032
1033         Hash = NewHash(1, NULL);
1034         Cfg =  CtdlGetSysConfig(IGNETMAP);
1035         if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
1036                 if (Cfg != NULL)
1037                         free(Cfg);
1038                 return Hash;
1039         }
1040
1041         Buf = NewStrBufPlain(Cfg, -1);
1042         free(Cfg);
1043         LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
1044         LinePos = NULL;
1045         while (StrBufSipLine(Buf, LineBuf, &LinePos))
1046         {
1047                 TheNetMap = NewNetMap(LineBuf);
1048                 if (TheNetMap != NULL) { /* TODO: is the NodeName Uniq? */
1049                         Put(Hash, SKEY(TheNetMap->NodeName), TheNetMap, DeleteNetMap);
1050                 }
1051         }
1052         FreeStrBuf(&Buf);
1053         FreeStrBuf(&LineBuf);
1054         return Hash;
1055 }
1056
1057 StrBuf *CtdlSerializeNetworkMap(HashList *Map)
1058 {
1059         void *vMap;
1060         const char *key;
1061         long len;
1062         StrBuf *Ret = NewStrBuf();
1063         HashPos *Pos = GetNewHashPos(Map, 0);
1064
1065         while (GetNextHashPos(Map, Pos, &len, &key, &vMap))
1066         {
1067                 CtdlNetMap *pMap = (CtdlNetMap*) vMap;
1068                 StrBufAppendBuf(Ret, pMap->NodeName, 0);
1069                 StrBufAppendBufPlain(Ret, HKEY("|"), 0);
1070
1071                 StrBufAppendPrintf(Ret, "%ld", pMap->lastcontact, 0);
1072                 StrBufAppendBufPlain(Ret, HKEY("|"), 0);
1073
1074                 StrBufAppendBuf(Ret, pMap->NextHop, 0);
1075                 StrBufAppendBufPlain(Ret, HKEY("\n"), 0);
1076         }
1077         DeleteHashPos(&Pos);
1078         return Ret;
1079 }
1080
1081
1082 /*
1083  * Learn topology from path fields
1084  */
1085 void NetworkLearnTopology(char *node, char *path, HashList *the_netmap, int *netmap_changed)
1086 {
1087         CtdlNetMap *pNM = NULL;
1088         void *vptr;
1089         char nexthop[256];
1090         CtdlNetMap *nmptr;
1091
1092         if (GetHash(the_netmap, node, strlen(node), &vptr) &&
1093             (vptr != NULL))/* TODO: is the NodeName Uniq? */
1094         {
1095                 pNM = (CtdlNetMap*)vptr;
1096                 extract_token(nexthop, path, 0, '!', sizeof nexthop);
1097                 if (!strcmp(nexthop, ChrPtr(pNM->NextHop))) {
1098                         pNM->lastcontact = time(NULL);
1099                         (*netmap_changed) ++;
1100                         return;
1101                 }
1102         }
1103
1104         /* If we got here then it's not in the map, so add it. */
1105         nmptr = (CtdlNetMap *) malloc(sizeof (CtdlNetMap));
1106         nmptr->NodeName = NewStrBufPlain(node, -1);
1107         nmptr->lastcontact = time(NULL);
1108         nmptr->NextHop = NewStrBuf ();
1109         StrBufExtract_tokenFromStr(nmptr->NextHop, path, strlen(path), 0, '!');
1110         /* TODO: is the NodeName Uniq? */
1111         Put(the_netmap, SKEY(nmptr->NodeName), nmptr, DeleteNetMap);
1112         (*netmap_changed) ++;
1113 }
1114
1115
1116 /*
1117  * Check the network map and determine whether the supplied node name is
1118  * valid.  If it is not a neighbor node, supply the name of a neighbor node
1119  * which is the next hop.  If it *is* a neighbor node, we also fill in the
1120  * shared secret.
1121  */
1122 int CtdlIsValidNode(const StrBuf **nexthop,
1123                     const StrBuf **secret,
1124                     StrBuf *node,
1125                     HashList *IgnetCfg,
1126                     HashList *the_netmap)
1127 {
1128         void *vNetMap;
1129         void *vNodeConf;
1130         CtdlNodeConf *TheNode;
1131         CtdlNetMap *TheNetMap;
1132
1133         if (StrLength(node) == 0) {
1134                 return(-1);
1135         }
1136
1137         /*
1138          * First try the neighbor nodes
1139          */
1140         if (GetCount(IgnetCfg) == 0) {
1141                 syslog(LOG_INFO, "IgnetCfg is empty!");
1142                 if (nexthop != NULL) {
1143                         *nexthop = NULL;
1144                 }
1145                 return(-1);
1146         }
1147
1148         /* try to find a neigbour with the name 'node' */
1149         if (GetHash(IgnetCfg, SKEY(node), &vNodeConf) &&
1150             (vNodeConf != NULL))
1151         {
1152                 TheNode = (CtdlNodeConf*)vNodeConf;
1153                 if (secret != NULL)
1154                         *secret = TheNode->Secret;
1155                 return 0;               /* yup, it's a direct neighbor */
1156         }
1157
1158         /*
1159          * If we get to this point we have to see if we know the next hop
1160          *//* TODO: is the NodeName Uniq? */
1161         if ((GetCount(the_netmap) > 0) &&
1162             (GetHash(the_netmap, SKEY(node), &vNetMap)))
1163         {
1164                 TheNetMap = (CtdlNetMap*)vNetMap;
1165                 if (nexthop != NULL)
1166                         *nexthop = TheNetMap->NextHop;
1167                 return(0);
1168         }
1169
1170         /*
1171          * If we get to this point, the supplied node name is bogus.
1172          */
1173         syslog(LOG_ERR, "Invalid node name <%s>", ChrPtr(node));
1174         return(-1);
1175 }
1176
1177
1178 void destroy_network_cfgs(void)
1179 {
1180         HashList *pCfgTypeHash = CfgTypeHash;
1181         HashList *pRoomConfigs;
1182
1183         begin_critical_section(S_NETCONFIGS);
1184         pRoomConfigs = RoomConfigs;
1185         RoomConfigs = NULL;
1186         end_critical_section(S_NETCONFIGS);
1187         DeleteHash(&pRoomConfigs);
1188
1189         CfgTypeHash = NULL;
1190         DeleteHash(&pCfgTypeHash);
1191 }
1192
1193
1194
1195
1196 /*
1197  * Create a config key for a room's netconfig entry
1198  */
1199 void netcfg_keyname(char *keybuf, long roomnum)
1200 {
1201         if (!keybuf) return;
1202         sprintf(keybuf, "c_netconfig_%010ld", roomnum);
1203 }
1204
1205
1206
1207
1208 /*
1209  * Convert any legacy configuration files in the "netconfigs" directory
1210  */
1211 void convert_legacy_netcfg_files(void)
1212 {
1213         DIR *dh = NULL;
1214         struct dirent *dit = NULL;
1215         char keyname[25];
1216         char filename[PATH_MAX];
1217         long roomnum;
1218         FILE *fp;
1219         long len;
1220         char *v;
1221
1222         dh = opendir(ctdl_netcfg_dir);
1223         if (!dh) return;
1224
1225         syslog(LOG_INFO, "Legacy netconfig files exist - converting them!");
1226
1227         while (dit = readdir(dh), dit != NULL) {                // yes, we use the non-reentrant version; we're not in threaded mode yet
1228                 roomnum = atol(dit->d_name);
1229                 if (roomnum > 0) {
1230                         netcfg_keyname(keyname, roomnum);
1231                         snprintf(filename, sizeof filename, "%s/%ld", ctdl_netcfg_dir, roomnum);
1232                         fp = fopen(filename, "r");
1233                         if (fp) {
1234                                 fseek(fp, 0L, SEEK_END);
1235                                 len = ftell(fp);
1236                                 v = malloc(len);
1237                                 if (v) {
1238                                         rewind(fp);
1239                                         if (fread(v, len, 1, fp)) {
1240                                                 char *enc = malloc(len * 2);
1241                                                 int enc_len;
1242                                                 if (enc) {
1243                                                         enc_len = CtdlEncodeBase64(enc, v, len, 0);
1244                                                         if ((enc_len > 1) && (enc[enc_len-2] == 13)) enc[enc_len-2] = 0;
1245                                                         if ((enc_len > 0) && (enc[enc_len-1] == 10)) enc[enc_len-1] = 0;
1246                                                         enc[enc_len] = 0;
1247                                                         syslog(LOG_DEBUG, "Writing key '%s' (length=%d)", keyname, enc_len);
1248                                                         CtdlSetConfigStr(keyname, enc);
1249                                                         free(enc);
1250                                                         // unlink(filename);            // FIXME uncomment this when ready
1251                                                         fclose(fp);
1252                                                 }
1253                                         }
1254                                 free(v);
1255                                 }
1256                         }
1257                 }
1258         }
1259
1260         closedir(dh);
1261         // rmdir(ctdl_netcfg_dir);              // FIXME uncomment this when ready
1262 }
1263
1264
1265
1266 /*
1267  * Module entry point
1268  */
1269 CTDL_MODULE_INIT(netconfig)
1270 {
1271         if (!threading)
1272         {
1273                 CtdlRegisterCleanupHook(destroy_network_cfgs);
1274                 convert_legacy_netcfg_files();
1275                 LoadAllNetConfigs();
1276                 CtdlRegisterProtoHook(cmd_gnet, "GNET", "Get network config");
1277                 CtdlRegisterProtoHook(cmd_snet, "SNET", "Set network config");
1278                 CtdlRegisterProtoHook(cmd_netp, "NETP", "Identify as network poller");
1279         }
1280         return "netconfig";
1281 }