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
 321 void SaveModifiedRooms(struct ctdlroom *qrbuf, void *data, OneRoomNetCfg *OneRNCfg)
 322 {
 323         char filename[PATH_MAX];
 324
 325         if (OneRNCfg->changed)
 326         {
 327                 assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
 328                 SaveRoomNetConfigFile(OneRNCfg, filename);
 329                 OneRNCfg->changed = 0;
 330         }
 331 }
 332
 333
 334 void SaveChangedConfigs(void)
 335 {
 336         CtdlForEachNetCfgRoom(SaveModifiedRooms, NULL, maxRoomNetCfg);
 337 }
 338
 339
 340 void AddRoomCfgLine(OneRoomNetCfg *OneRNCfg, struct ctdlroom *qrbuf, RoomNetCfg LineType, RoomNetCfgLine *Line)
 341 {
 342         int new = 0;
 343         RoomNetCfgLine **pLine;
 344         char filename[PATH_MAX];
 345
 346         if (OneRNCfg == NULL)
 347         {
 348                 new = 1;
 349                 OneRNCfg = (OneRoomNetCfg*) malloc(sizeof(OneRoomNetCfg));
 350                 memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
 351         }
 352         pLine = &OneRNCfg->NetConfigs[LineType];
 353
 354         while(*pLine != NULL) pLine = &((*pLine)->next);
 355         *pLine = Line;
 356
 357         assoc_file_name(filename, sizeof filename, qrbuf, ctdl_netcfg_dir);
 358         SaveRoomNetConfigFile(OneRNCfg, filename);
 359         OneRNCfg->changed = 0;
 360         if (new)
 361         {
 362                 Put(RoomConfigs, LKEY(qrbuf->QRnumber), OneRNCfg, vFreeRoomNetworkStruct);
 363         }
 364 }
 365
 366
 367 void FreeRoomNetworkStructContent(OneRoomNetCfg *OneRNCfg)
 368 {
 369         RoomNetCfg eCfg;
 370         HashPos *CfgIt;
 371
 372         CfgIt = GetNewHashPos(CfgTypeHash, 1);
 373         for (eCfg = subpending; eCfg < maxRoomNetCfg; eCfg ++)
 374         {
 375                 const CfgLineType *pCfg;
 376                 RoomNetCfgLine *pNext, *pName;
 377
 378                 pCfg = GetCfgTypeByEnum(eCfg, CfgIt);
 379                 pName= OneRNCfg->NetConfigs[eCfg];
 380                 while (pName != NULL)
 381                 {
 382                         pNext = pName->next;
 383                         if (pCfg != NULL)
 384                         {
 385                                 pCfg->DeAllocator(pCfg, &pName);
 386                         }
 387                         else
 388                         {
 389                                 DeleteGenericCfgLine(NULL, &pName);
 390                         }
 391                         pName = pNext;
 392                 }
 393         }
 394         DeleteHashPos(&CfgIt);
 395
 396         FreeStrBuf(&OneRNCfg->Sender);
 397         FreeStrBuf(&OneRNCfg->RoomInfo);
 398         FreeStrBuf(&OneRNCfg->misc);
 399         memset(OneRNCfg, 0, sizeof(OneRoomNetCfg));
 400 }
 401
 402
 403 void vFreeRoomNetworkStruct(void *vOneRoomNetCfg)
 404 {
 405         OneRoomNetCfg *OneRNCfg;
 406         OneRNCfg = (OneRoomNetCfg*)vOneRoomNetCfg;
 407         FreeRoomNetworkStructContent(OneRNCfg);
 408         free(OneRNCfg);
 409 }
 410
 411
 412 void FreeRoomNetworkStruct(OneRoomNetCfg **pOneRNCfg)
 413 {
 414         vFreeRoomNetworkStruct(*pOneRNCfg);
 415         *pOneRNCfg=NULL;
 416 }
 417
 418
 419 OneRoomNetCfg* CtdlGetNetCfgForRoom(long QRNumber)
 420 {
 421         void *pv;
 422         GetHash(RoomConfigs, LKEY(QRNumber), &pv);
 423         return (OneRoomNetCfg*)pv;
 424 }
 425
 426
 427 void LoadAllNetConfigs(void)
 428 {
 429         DIR *filedir = NULL;
 430         struct dirent *d;
 431         struct dirent *filedir_entry;
 432         int d_type = 0;
 433         int d_namelen;
 434         long RoomNumber;
 435         OneRoomNetCfg *OneRNCfg;
 436         int IsNumOnly;
 437         const char *pch;
 438         char path[PATH_MAX];
 439
 440         RoomConfigs = NewHash(1, NULL);
 441         filedir = opendir (ctdl_netcfg_dir);
 442         if (filedir == NULL) {
 443                 return ; /// todo: panic!
 444         }
 445
 446         d = (struct dirent *)malloc(offsetof(struct dirent, d_name) + PATH_MAX + 1);
 447         if (d == NULL) {
 448                 closedir(filedir);
 449                 return ;
 450         }
 451
 452         while ((readdir_r(filedir, d, &filedir_entry) == 0) &&
 453                (filedir_entry != NULL))
 454         {
 455 #ifdef _DIRENT_HAVE_D_NAMLEN
 456                 d_namelen = filedir_entry->d_namlen;
 457 #else
 458                 d_namelen = strlen(filedir_entry->d_name);
 459 #endif
 460
 461 #ifdef _DIRENT_HAVE_D_TYPE
 462                 d_type = filedir_entry->d_type;
 463 #else
 464
 465 #ifndef DT_UNKNOWN
 466 #define DT_UNKNOWN     0
 467 #define DT_DIR         4
 468 #define DT_REG         8
 469 #define DT_LNK         10
 470
 471 #define IFTODT(mode)   (((mode) & 0170000) >> 12)
 472 #define DTTOIF(dirtype)        ((dirtype) << 12)
 473 #endif
 474                 d_type = DT_UNKNOWN;
 475 #endif
 476                 if ((d_namelen > 1) && filedir_entry->d_name[d_namelen - 1] == '~')
 477                         continue; /* Ignore backup files... */
 478
 479                 if ((d_namelen == 1) &&
 480                     (filedir_entry->d_name[0] == '.'))
 481                         continue;
 482
 483                 if ((d_namelen == 2) &&
 484                     (filedir_entry->d_name[0] == '.') &&
 485                     (filedir_entry->d_name[1] == '.'))
 486                         continue;
 487
 488                 snprintf(path, PATH_MAX, "%s/%s",
 489                          ctdl_netcfg_dir, filedir_entry->d_name);
 490
 491                 if (d_type == DT_UNKNOWN) {
 492                         struct stat s;
 493                         if (lstat(path, &s) == 0) {
 494                                 d_type = IFTODT(s.st_mode);
 495                         }
 496                 }
 497
 498                 switch (d_type)
 499                 {
 500                 case DT_DIR:
 501                         break;
 502                 case DT_LNK: /* TODO: check whether its a file or a directory */
 503                 case DT_REG:
 504                         IsNumOnly = 1;
 505                         pch = filedir_entry->d_name;
 506                         while (*pch != '\0')
 507                         {
 508                                 if (!isdigit(*pch))
 509                                 {
 510                                         IsNumOnly = 0;
 511                                 }
 512                                 pch ++;
 513                         }
 514                         if (IsNumOnly)
 515                         {
 516                                 OneRNCfg = NULL;
 517                                 RoomNumber = atol(filedir_entry->d_name);
 518                                 ReadRoomNetConfigFile(&OneRNCfg, path);
 519
 520                                 if (OneRNCfg != NULL)
 521                                         Put(RoomConfigs, LKEY(RoomNumber), OneRNCfg, vFreeRoomNetworkStruct);
 522                         }
 523                         break;
 524                 default:
 525                         break;
 526                 }
 527
 528
 529         }
 530         free(d);
 531         closedir(filedir);
 532 }
 533
 534
 535 /*-----------------------------------------------------------------------------*
 536  *              Per room network configs : exchange with client                *
 537  *-----------------------------------------------------------------------------*/
 538 void cmd_gnet(char *argbuf)
 539 {
 540         char filename[PATH_MAX];
 541         char buf[SIZ];
 542         FILE *fp;
 543
 544
 545         if (!IsEmptyStr(argbuf))
 546         {
 547                 if (CtdlAccessCheck(ac_aide)) return;
 548                 if (strcmp(argbuf, FILE_MAILALIAS))
 549                 {
 550                         cprintf("%d No such file or directory\n",
 551                                 ERROR + INTERNAL_ERROR);
 552                         return;
 553                 }
 554                 safestrncpy(filename, file_mail_aliases, sizeof(filename));
 555                 cprintf("%d Settings for <%s>\n",
 556                         LISTING_FOLLOWS,
 557                         filename);
 558         }
 559         else
 560         {
 561                 if ( (CC->room.QRflags & QR_MAILBOX) && (CC->user.usernum == atol(CC->room.QRname)) ) {
 562                         /* users can edit the netconfigs for their own mailbox rooms */
 563                 }
 564                 else if (CtdlAccessCheck(ac_room_aide)) return;
 565
 566                 assoc_file_name(filename, sizeof filename, &CC->room, ctdl_netcfg_dir);
 567                 cprintf("%d Network settings for room #%ld <%s>\n",
 568                         LISTING_FOLLOWS,
 569                         CC->room.QRnumber, CC->room.QRname);
 570         }
 571
 572         fp = fopen(filename, "r");
 573         if (fp != NULL) {
 574                 while (fgets(buf, sizeof buf, fp) != NULL) {
 575                         buf[strlen(buf)-1] = 0;
 576                         cprintf("%s\n", buf);
 577                 }
 578                 fclose(fp);
 579         }
 580
 581         cprintf("000\n");
 582 }
 583
 584 #define nForceAliases 5
 585 const ConstStr ForceAliases[nForceAliases] = {
 586         {HKEY("bbs,")},
 587         {HKEY("root,")},
 588         {HKEY("Auto,")},
 589         {HKEY("postmaster,")},
 590         {HKEY("abuse,")}
 591 };
 592 void cmd_snet(char *argbuf)
 593 {
 594         struct CitContext *CCC = CC;
 595         char tempfilename[PATH_MAX];
 596         char filename[PATH_MAX];
 597         int TmpFD;
 598         StrBuf *Line;
 599         struct stat StatBuf;
 600         long len;
 601         int rc;
 602         int IsMailAlias = 0;
 603         int MailAliasesFound[nForceAliases];
 604
 605         unbuffer_output();
 606
 607         if (!IsEmptyStr(argbuf))
 608         {
 609                 if (CtdlAccessCheck(ac_aide)) return;
 610                 if (strcmp(argbuf, FILE_MAILALIAS))
 611                 {
 612                         cprintf("%d No such file or directory\n",
 613                                 ERROR + INTERNAL_ERROR);
 614                         return;
 615                 }
 616                 len = safestrncpy(filename, file_mail_aliases, sizeof(filename));
 617                 memset(MailAliasesFound, 0, sizeof(MailAliasesFound));
 618                 memcpy(tempfilename, filename, len + 1);
 619                 IsMailAlias = 1;
 620         }
 621         else
 622         {
 623                 if ( (CCC->room.QRflags & QR_MAILBOX) && (CCC->user.usernum == atol(CCC->room.QRname)) ) {
 624                         /* users can edit the netconfigs for their own mailbox rooms */
 625                 }
 626                 else if (CtdlAccessCheck(ac_room_aide)) return;
 627
 628                 len = assoc_file_name(filename, sizeof filename, &CCC->room, ctdl_netcfg_dir);
 629                 memcpy(tempfilename, filename, len + 1);
 630         }
 631         memset(&StatBuf, 0, sizeof(struct stat));
 632         if ((stat(filename, &StatBuf)  == -1) || (StatBuf.st_size == 0))
 633                 StatBuf.st_size = 80; /* Not there or empty? guess 80 chars line. */
 634
 635         sprintf(tempfilename + len, ".%d", CCC->cs_pid);
 636         errno = 0;
 637         TmpFD = open(tempfilename, O_CREAT|O_EXCL|O_RDWR, S_IRUSR|S_IWUSR);
 638
 639         if ((TmpFD > 0) && (errno == 0))
 640         {
 641                 char *tmp = malloc(StatBuf.st_size * 2);
 642                 memset(tmp, ' ', StatBuf.st_size * 2);
 643                 rc = write(TmpFD, tmp, StatBuf.st_size * 2);
 644                 free(tmp);
 645                 if ((rc <= 0) || (rc != StatBuf.st_size * 2))
 646                 {
 647                         close(TmpFD);
 648                         cprintf("%d Unable to allocate the space required for %s: %s\n",
 649                                 ERROR + INTERNAL_ERROR,
 650                                 tempfilename,
 651                                 strerror(errno));
 652                         unlink(tempfilename);
 653                         return;
 654                 }
 655                 lseek(TmpFD, SEEK_SET, 0);
 656         }
 657         else {
 658                 cprintf("%d Unable to allocate the space required for %s: %s\n",
 659                         ERROR + INTERNAL_ERROR,
 660                         tempfilename,
 661                         strerror(errno));
 662                 unlink(tempfilename);
 663                 return;
 664         }
 665         Line = NewStrBuf();
 666
 667         cprintf("%d %s\n", SEND_LISTING, tempfilename);
 668
 669         len = 0;
 670         while (rc = CtdlClientGetLine(Line),
 671                (rc >= 0))
 672         {
 673                 if ((rc == 3) && (strcmp(ChrPtr(Line), "000") == 0))
 674                         break;
 675                 if (IsMailAlias)
 676                 {
 677                         int i;
 678
 679                         for (i = 0; i < nForceAliases; i++)
 680                         {
 681                                 if ((!MailAliasesFound[i]) &&
 682                                     (strncmp(ForceAliases[i].Key,
 683                                              ChrPtr(Line),
 684                                              ForceAliases[i].len) == 0)
 685                                         )
 686                                     {
 687                                             MailAliasesFound[i] = 1;
 688                                             break;
 689                                     }
 690                         }
 691                 }
 692
 693                 StrBufAppendBufPlain(Line, HKEY("\n"), 0);
 694                 write(TmpFD, ChrPtr(Line), StrLength(Line));
 695                 len += StrLength(Line);
 696         }
 697         FreeStrBuf(&Line);
 698         ftruncate(TmpFD, len);
 699         close(TmpFD);
 700
 701         if (IsMailAlias)
 702         {
 703                 int i, state;
 704                 /*
 705                  * Sanity check whether all aliases required by the RFCs were set
 706                  * else bail out.
 707                  */
 708                 state = 1;
 709                 for (i = 0; i < nForceAliases; i++)
 710                 {
 711                         if (!MailAliasesFound[i])
 712                                 state = 0;
 713                 }
 714                 if (state == 0)
 715                 {
 716                         cprintf("%d won't do this - you're missing an RFC required alias.\n",
 717                                 ERROR + INTERNAL_ERROR);
 718                         unlink(tempfilename);
 719                         return;
 720                 }
 721         }
 722
 723         /* Now copy the temp file to its permanent location.
 724          * (We copy instead of link because they may be on different filesystems)
 725          */
 726         begin_critical_section(S_NETCONFIGS);
 727         rename(tempfilename, filename);
 728         if (!IsMailAlias)
 729         {
 730                 OneRoomNetCfg *RNCfg;
 731                 RNCfg = CtdlGetNetCfgForRoom(CCC->room.QRnumber);
 732                 if (RNCfg != NULL)
 733                 {
 734                         ReadRoomNetConfigFile(&RNCfg, filename);
 735                 }
 736                 else
 737                 {
 738                         ReadRoomNetConfigFile(&RNCfg, filename);
 739                         Put(RoomConfigs, LKEY(CCC->room.QRnumber), RNCfg, vFreeRoomNetworkStruct);
 740                 }
 741
 742                 PerformRoomHooks(&CCC->room);
 743         }
 744         end_critical_section(S_NETCONFIGS);
 745 }
 746
 747
 748 /*-----------------------------------------------------------------------------*
 749  *                       Per node network configs                              *
 750  *-----------------------------------------------------------------------------*/
 751 void DeleteCtdlNodeConf(void *vNode)
 752 {
 753         CtdlNodeConf *Node = (CtdlNodeConf*) vNode;
 754         FreeStrBuf(&Node->NodeName);
 755         FreeStrBuf(&Node->Secret);
 756         FreeStrBuf(&Node->Host);
 757         FreeStrBuf(&Node->Port);
 758         free(Node);
 759 }
 760
 761 CtdlNodeConf *NewNode(StrBuf *SerializedNode)
 762 {
 763         const char *Pos = NULL;
 764         CtdlNodeConf *Node;
 765
 766         /* we need at least 4 pipes and some other text so its invalid. */
 767         if (StrLength(SerializedNode) < 8)
 768                 return NULL;
 769         Node = (CtdlNodeConf *) malloc(sizeof(CtdlNodeConf));
 770
 771         Node->DeleteMe = 0;
 772
 773         Node->NodeName=NewStrBuf();
 774         StrBufExtract_NextToken(Node->NodeName, SerializedNode, &Pos, '|');
 775
 776         Node->Secret=NewStrBuf();
 777         StrBufExtract_NextToken(Node->Secret, SerializedNode, &Pos, '|');
 778
 779         Node->Host=NewStrBuf();
 780         StrBufExtract_NextToken(Node->Host, SerializedNode, &Pos, '|');
 781
 782         Node->Port=NewStrBuf();
 783         StrBufExtract_NextToken(Node->Port, SerializedNode, &Pos, '|');
 784         return Node;
 785 }
 786
 787
 788 /*
 789  * Load or refresh the Citadel network (IGnet) configuration for this node.
 790  */
 791 HashList* CtdlLoadIgNetCfg(void)
 792 {
 793         const char *LinePos;
 794         char       *Cfg;
 795         StrBuf     *Buf;
 796         StrBuf     *LineBuf;
 797         HashList   *Hash;
 798         CtdlNodeConf   *Node;
 799
 800         Cfg =  CtdlGetSysConfig(IGNETCFG);
 801         if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
 802                 if (Cfg != NULL)
 803                         free(Cfg);
 804                 return NULL;
 805         }
 806
 807         Hash = NewHash(1, NULL);
 808         Buf = NewStrBufPlain(Cfg, -1);
 809         free(Cfg);
 810         LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
 811         LinePos = NULL;
 812         do
 813         {
 814                 StrBufSipLine(LineBuf, Buf, &LinePos);
 815                 if (StrLength(LineBuf) != 0) {
 816                         Node = NewNode(LineBuf);
 817                         if (Node != NULL) {
 818                                 Put(Hash, SKEY(Node->NodeName), Node, DeleteCtdlNodeConf);
 819                         }
 820                 }
 821         } while (LinePos != StrBufNOTNULL);
 822         FreeStrBuf(&Buf);
 823         FreeStrBuf(&LineBuf);
 824         return Hash;
 825 }
 826
 827
 828 int is_recipient(OneRoomNetCfg *RNCfg, const char *Name)
 829 {
 830         const RoomNetCfg RecipientCfgs[] = {
 831                 listrecp,
 832                 digestrecp,
 833                 participate,
 834                 maxRoomNetCfg
 835         };
 836         int i;
 837         RoomNetCfgLine *nptr;
 838         size_t len;
 839
 840         len = strlen(Name);
 841         i = 0;
 842         while (RecipientCfgs[i] != maxRoomNetCfg)
 843         {
 844                 nptr = RNCfg->NetConfigs[RecipientCfgs[i]];
 845
 846                 while (nptr != NULL)
 847                 {
 848                         if ((StrLength(nptr->Value[0]) == len) &&
 849                             (!strcmp(Name, ChrPtr(nptr->Value[0]))))
 850                         {
 851                                 return 1;
 852                         }
 853                         nptr = nptr->next;
 854                 }
 855                 i++;
 856         }
 857         return 0;
 858 }
 859
 860
 861
 862 int CtdlNetconfigCheckRoomaccess(
 863         char *errmsgbuf,
 864         size_t n,
 865         const char* RemoteIdentifier)
 866 {
 867         OneRoomNetCfg *RNCfg;
 868         int found;
 869
 870         if (RemoteIdentifier == NULL)
 871         {
 872                 snprintf(errmsgbuf, n, "Need sender to permit access.");
 873                 return (ERROR + USERNAME_REQUIRED);
 874         }
 875
 876         begin_critical_section(S_NETCONFIGS);
 877         RNCfg = CtdlGetNetCfgForRoom (CC->room.QRnumber);
 878         if (RNCfg == NULL)
 879         {
 880                 end_critical_section(S_NETCONFIGS);
 881                 snprintf(errmsgbuf, n,
 882                          "This mailing list only accepts posts from subscribers.");
 883                 return (ERROR + NO_SUCH_USER);
 884         }
 885         found = is_recipient (RNCfg, RemoteIdentifier);
 886         end_critical_section(S_NETCONFIGS);
 887
 888         if (found) {
 889                 return (0);
 890         }
 891         else {
 892                 snprintf(errmsgbuf, n,
 893                          "This mailing list only accepts posts from subscribers.");
 894                 return (ERROR + NO_SUCH_USER);
 895         }
 896 }
 897
 898
 899
 900 /*
 901  * cmd_netp() - authenticate to the server as another Citadel node polling
 902  *            for network traffic
 903  */
 904 void cmd_netp(char *cmdbuf)
 905 {
 906         struct CitContext *CCC = CC;
 907         HashList *working_ignetcfg;
 908         char *node;
 909         StrBuf *NodeStr;
 910         long nodelen;
 911         int v;
 912         long lens[2];
 913         const char *strs[2];
 914
 915         const StrBuf *secret = NULL;
 916         const StrBuf *nexthop = NULL;
 917         char err_buf[SIZ] = "";
 918
 919         /* Authenticate */
 920         node = CCC->curr_user;
 921         nodelen = extract_token(CCC->curr_user, cmdbuf, 0, '|', sizeof CCC->curr_user);
 922         NodeStr = NewStrBufPlain(node, nodelen);
 923         /* load the IGnet Configuration to check node validity */
 924         working_ignetcfg = CtdlLoadIgNetCfg();
 925         v = CtdlIsValidNode(&nexthop, &secret, NodeStr, working_ignetcfg, NULL);
 926         if (v != 0) {
 927                 snprintf(err_buf, sizeof err_buf,
 928                         "An unknown Citadel server called \"%s\" attempted to connect from %s [%s].\n",
 929                         node, CCC->cs_host, CCC->cs_addr
 930                 );
 931                 syslog(LOG_WARNING, "%s", err_buf);
 932                 cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
 933
 934                 strs[0] = CCC->cs_addr;
 935                 lens[0] = strlen(CCC->cs_addr);
 936
 937                 strs[1] = "SRV_UNKNOWN";
 938                 lens[1] = sizeof("SRV_UNKNOWN") - 1;
 939
 940                 CtdlAideFPMessage(
 941                         err_buf,
 942                         "IGNet Networking.",
 943                         2, strs, (long*) &lens,
 944                         CCC->cs_pid, 0,
 945                         time(NULL));
 946
 947                 DeleteHash(&working_ignetcfg);
 948                 FreeStrBuf(&NodeStr);
 949                 return;
 950         }
 951
 952         extract_token(CCC->user.password, cmdbuf, 1, '|', sizeof CCC->user.password);
 953         if (strcasecmp(CCC->user.password, ChrPtr(secret))) {
 954                 snprintf(err_buf, sizeof err_buf,
 955                         "A Citadel server at %s [%s] failed to authenticate as network node \"%s\".\n",
 956                         CCC->cs_host, CCC->cs_addr, node
 957                 );
 958                 syslog(LOG_WARNING, "%s", err_buf);
 959                 cprintf("%d authentication failed\n", ERROR + PASSWORD_REQUIRED);
 960
 961                 strs[0] = CCC->cs_addr;
 962                 lens[0] = strlen(CCC->cs_addr);
 963
 964                 strs[1] = "SRV_PW";
 965                 lens[1] = sizeof("SRV_PW") - 1;
 966
 967                 CtdlAideFPMessage(
 968                         err_buf,
 969                         "IGNet Networking.",
 970                         2, strs,
 971                         (long*) &lens,
 972                         CCC->cs_pid, 0,
 973                         time(NULL));
 974
 975                 DeleteHash(&working_ignetcfg);
 976                 FreeStrBuf(&NodeStr);
 977                 return;
 978         }
 979
 980         if (CtdlNetworkTalkingTo(node, nodelen, NTT_CHECK)) {
 981                 syslog(LOG_WARNING, "Duplicate session for network node <%s>", node);
 982                 cprintf("%d Already talking to %s right now\n", ERROR + RESOURCE_BUSY, node);
 983                 DeleteHash(&working_ignetcfg);
 984                 FreeStrBuf(&NodeStr);
 985                 return;
 986         }
 987         nodelen = safestrncpy(CCC->net_node, node, sizeof CCC->net_node);
 988         CtdlNetworkTalkingTo(CCC->net_node, nodelen, NTT_ADD);
 989         syslog(LOG_NOTICE, "Network node <%s> logged in from %s [%s]",
 990                 CCC->net_node, CCC->cs_host, CCC->cs_addr
 991         );
 992         cprintf("%d authenticated as network node '%s'\n", CIT_OK, CCC->net_node);
 993         DeleteHash(&working_ignetcfg);
 994         FreeStrBuf(&NodeStr);
 995 }
 996
 997
 998 /*-----------------------------------------------------------------------------*
 999  *                 Network maps: evaluate other nodes                          *
1000  *-----------------------------------------------------------------------------*/
1001
1002 void DeleteNetMap(void *vNetMap)
1003 {
1004         CtdlNetMap *TheNetMap = (CtdlNetMap*) vNetMap;
1005         FreeStrBuf(&TheNetMap->NodeName);
1006         FreeStrBuf(&TheNetMap->NextHop);
1007         free(TheNetMap);
1008 }
1009
1010 CtdlNetMap *NewNetMap(StrBuf *SerializedNetMap)
1011 {
1012         const char *Pos = NULL;
1013         CtdlNetMap *NM;
1014
1015         /* we need at least 3 pipes and some other text so its invalid. */
1016         if (StrLength(SerializedNetMap) < 6)
1017                 return NULL;
1018         NM = (CtdlNetMap *) malloc(sizeof(CtdlNetMap));
1019
1020         NM->NodeName=NewStrBuf();
1021         StrBufExtract_NextToken(NM->NodeName, SerializedNetMap, &Pos, '|');
1022
1023         NM->lastcontact = StrBufExtractNext_long(SerializedNetMap, &Pos, '|');
1024
1025         NM->NextHop=NewStrBuf();
1026         StrBufExtract_NextToken(NM->NextHop, SerializedNetMap, &Pos, '|');
1027
1028         return NM;
1029 }
1030
1031 HashList* CtdlReadNetworkMap(void)
1032 {
1033         const char *LinePos;
1034         char       *Cfg;
1035         StrBuf     *Buf;
1036         StrBuf     *LineBuf;
1037         HashList   *Hash;
1038         CtdlNetMap     *TheNetMap;
1039
1040         Hash = NewHash(1, NULL);
1041         Cfg =  CtdlGetSysConfig(IGNETMAP);
1042         if ((Cfg == NULL) || IsEmptyStr(Cfg)) {
1043                 if (Cfg != NULL)
1044                         free(Cfg);
1045                 return Hash;
1046         }
1047
1048         Buf = NewStrBufPlain(Cfg, -1);
1049         free(Cfg);
1050         LineBuf = NewStrBufPlain(NULL, StrLength(Buf));
1051         LinePos = NULL;
1052         while (StrBufSipLine(Buf, LineBuf, &LinePos))
1053         {
1054                 TheNetMap = NewNetMap(LineBuf);
1055                 if (TheNetMap != NULL) { /* TODO: is the NodeName Uniq? */
1056                         Put(Hash, SKEY(TheNetMap->NodeName), TheNetMap, DeleteNetMap);
1057                 }
1058         }
1059         FreeStrBuf(&Buf);
1060         FreeStrBuf(&LineBuf);
1061         return Hash;
1062 }
1063
1064 StrBuf *CtdlSerializeNetworkMap(HashList *Map)
1065 {
1066         void *vMap;
1067         const char *key;
1068         long len;
1069         StrBuf *Ret = NewStrBuf();
1070         HashPos *Pos = GetNewHashPos(Map, 0);
1071
1072         while (GetNextHashPos(Map, Pos, &len, &key, &vMap))
1073         {
1074                 CtdlNetMap *pMap = (CtdlNetMap*) vMap;
1075                 StrBufAppendBuf(Ret, pMap->NodeName, 0);
1076                 StrBufAppendBufPlain(Ret, HKEY("|"), 0);
1077
1078                 StrBufAppendPrintf(Ret, "%ld", pMap->lastcontact, 0);
1079                 StrBufAppendBufPlain(Ret, HKEY("|"), 0);
1080
1081                 StrBufAppendBuf(Ret, pMap->NextHop, 0);
1082                 StrBufAppendBufPlain(Ret, HKEY("\n"), 0);
1083         }
1084         DeleteHashPos(&Pos);
1085         return Ret;
1086 }
1087
1088
1089 /*
1090  * Learn topology from path fields
1091  */
1092 void NetworkLearnTopology(char *node, char *path, HashList *the_netmap, int *netmap_changed)
1093 {
1094         CtdlNetMap *pNM = NULL;
1095         void *vptr;
1096         char nexthop[256];
1097         CtdlNetMap *nmptr;
1098
1099         if (GetHash(the_netmap, node, strlen(node), &vptr) &&
1100             (vptr != NULL))/* TODO: is the NodeName Uniq? */
1101         {
1102                 pNM = (CtdlNetMap*)vptr;
1103                 extract_token(nexthop, path, 0, '!', sizeof nexthop);
1104                 if (!strcmp(nexthop, ChrPtr(pNM->NextHop))) {
1105                         pNM->lastcontact = time(NULL);
1106                         (*netmap_changed) ++;
1107                         return;
1108                 }
1109         }
1110
1111         /* If we got here then it's not in the map, so add it. */
1112         nmptr = (CtdlNetMap *) malloc(sizeof (CtdlNetMap));
1113         nmptr->NodeName = NewStrBufPlain(node, -1);
1114         nmptr->lastcontact = time(NULL);
1115         nmptr->NextHop = NewStrBuf ();
1116         StrBufExtract_tokenFromStr(nmptr->NextHop, path, strlen(path), 0, '!');
1117         /* TODO: is the NodeName Uniq? */
1118         Put(the_netmap, SKEY(nmptr->NodeName), nmptr, DeleteNetMap);
1119         (*netmap_changed) ++;
1120 }
1121
1122
1123 /*
1124  * Check the network map and determine whether the supplied node name is
1125  * valid.  If it is not a neighbor node, supply the name of a neighbor node
1126  * which is the next hop.  If it *is* a neighbor node, we also fill in the
1127  * shared secret.
1128  */
1129 int CtdlIsValidNode(const StrBuf **nexthop,
1130                     const StrBuf **secret,
1131                     StrBuf *node,
1132                     HashList *IgnetCfg,
1133                     HashList *the_netmap)
1134 {
1135         void *vNetMap;
1136         void *vNodeConf;
1137         CtdlNodeConf *TheNode;
1138         CtdlNetMap *TheNetMap;
1139
1140         if (StrLength(node) == 0) {
1141                 return(-1);
1142         }
1143
1144         /*
1145          * First try the neighbor nodes
1146          */
1147         if (GetCount(IgnetCfg) == 0) {
1148                 syslog(LOG_INFO, "IgnetCfg is empty!");
1149                 if (nexthop != NULL) {
1150                         *nexthop = NULL;
1151                 }
1152                 return(-1);
1153         }
1154
1155         /* try to find a neigbour with the name 'node' */
1156         if (GetHash(IgnetCfg, SKEY(node), &vNodeConf) &&
1157             (vNodeConf != NULL))
1158         {
1159                 TheNode = (CtdlNodeConf*)vNodeConf;
1160                 if (secret != NULL)
1161                         *secret = TheNode->Secret;
1162                 return 0;               /* yup, it's a direct neighbor */
1163         }
1164
1165         /*
1166          * If we get to this point we have to see if we know the next hop
1167          *//* TODO: is the NodeName Uniq? */
1168         if ((GetCount(the_netmap) > 0) &&
1169             (GetHash(the_netmap, SKEY(node), &vNetMap)))
1170         {
1171                 TheNetMap = (CtdlNetMap*)vNetMap;
1172                 if (nexthop != NULL)
1173                         *nexthop = TheNetMap->NextHop;
1174                 return(0);
1175         }
1176
1177         /*
1178          * If we get to this point, the supplied node name is bogus.
1179          */
1180         syslog(LOG_ERR, "Invalid node name <%s>", ChrPtr(node));
1181         return(-1);
1182 }
1183
1184
1185 void destroy_network_cfgs(void)
1186 {
1187         HashList *pCfgTypeHash = CfgTypeHash;
1188         HashList *pRoomConfigs;
1189
1190         begin_critical_section(S_NETCONFIGS);
1191         pRoomConfigs = RoomConfigs;
1192         RoomConfigs = NULL;
1193         end_critical_section(S_NETCONFIGS);
1194         DeleteHash(&pRoomConfigs);
1195
1196         CfgTypeHash = NULL;
1197         DeleteHash(&pCfgTypeHash);
1198 }
1199
1200
1201
1202
1203 /*
1204  * Create a config key for a room's netconfig entry
1205  */
1206 void netcfg_keyname(char *keybuf, long roomnum)
1207 {
1208         if (!keybuf) return;
1209         sprintf(keybuf, "c_netconfig_%010ld", roomnum);
1210 }
1211
1212
1213
1214
1215 /*
1216  * Convert any legacy configuration files in the "netconfigs" directory
1217  */
1218 void convert_legacy_netcfg_files(void)
1219 {
1220         DIR *dh = NULL;
1221         struct dirent *dit = NULL;
1222         char keyname[25];
1223         char filename[PATH_MAX];
1224         long roomnum;
1225         FILE *fp;
1226         long len;
1227         char *v;
1228
1229         dh = opendir(ctdl_netcfg_dir);
1230         if (!dh) return;
1231
1232         syslog(LOG_INFO, "Legacy netconfig files exist - converting them!");
1233
1234         while (dit = readdir(dh), dit != NULL) {                // yes, we use the non-reentrant version; we're not in threaded mode yet
1235                 roomnum = atol(dit->d_name);
1236                 if (roomnum > 0) {
1237                         netcfg_keyname(keyname, roomnum);
1238                         snprintf(filename, sizeof filename, "%s/%ld", ctdl_netcfg_dir, roomnum);
1239                         fp = fopen(filename, "r");
1240                         if (fp) {
1241                                 fseek(fp, 0L, SEEK_END);
1242                                 len = ftell(fp);
1243                                 v = malloc(len);
1244                                 if (v) {
1245                                         rewind(fp);
1246                                         if (fread(v, len, 1, fp)) {
1247                                                 char *enc = malloc(len * 2);
1248                                                 int enc_len;
1249                                                 if (enc) {
1250                                                         enc_len = CtdlEncodeBase64(enc, v, len, 0);
1251                                                         if ((enc_len > 1) && (enc[enc_len-2] == 13)) enc[enc_len-2] = 0;
1252                                                         if ((enc_len > 0) && (enc[enc_len-1] == 10)) enc[enc_len-1] = 0;
1253                                                         enc[enc_len] = 0;
1254                                                         syslog(LOG_DEBUG, "Writing key '%s' (length=%d)", keyname, enc_len);
1255                                                         CtdlSetConfigStr(keyname, enc);
1256                                                         free(enc);
1257                                                         // unlink(filename);            // FIXME uncomment this when ready
1258                                                         fclose(fp);
1259                                                 }
1260                                         }
1261                                 free(v);
1262                                 }
1263                         }
1264                 }
1265         }
1266
1267         closedir(dh);
1268         // rmdir(ctdl_netcfg_dir);              // FIXME uncomment this when ready
1269 }
1270
1271
1272
1273 /*
1274  * Module entry point
1275  */
1276 CTDL_MODULE_INIT(netconfig)
1277 {
1278         if (!threading)
1279         {
1280                 CtdlRegisterCleanupHook(destroy_network_cfgs);
1281                 convert_legacy_netcfg_files();
1282                 LoadAllNetConfigs();
1283                 CtdlRegisterProtoHook(cmd_gnet, "GNET", "Get network config");
1284                 CtdlRegisterProtoHook(cmd_snet, "SNET", "Set network config");
1285                 CtdlRegisterProtoHook(cmd_netp, "NETP", "Identify as network poller");
1286         }
1287         return "netconfig";
1288 }