source3/modules/vfs_smb_traffic_analyzer.c

   1 /*
   2  * traffic-analyzer VFS module. Measure the smb traffic users create
   3  * on the net.
   4  *
   5  * Copyright (C) Holger Hetterich, 2008
   6  * Copyright (C) Jeremy Allison, 2008
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "includes.h"
  23 #include "../lib/crypto/crypto.h"
  24
  25 /* abstraction for the send_over_network function */
  26 enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
  27
  28 #define LOCAL_PATHNAME "/var/tmp/stadsocket"
  29
  30
  31 /*
  32  * Protocol version 2.0 description
  33  *
  34  * The following table shows the exact assembly of the 2.0 protocol.
  35  *
  36  * -->Header<--
  37  * The protocol header is always send first, and contains various
  38  * information about the data block to come.
  39  * The header is always of fixed length, and will be send unencrypted.
  40  *
  41  * Byte Number/Bytes    Description
  42  * 00-02                Contains always the string "V2."
  43  * 03                   This byte contains a possible subrelease number of the
  44  *                      protocol. This enables the receiver to make a version
  45  *                      check to ensure the compatibility and allows us to
  46  *                      release 2.x versions of the protocol with bugfixes or
  47  *                      enhancements.
  48  * 04                   Usually, this byte contains the character '0'. If the
  49  *                      VFS module is configured for anonymization, this is
  50  *                      set to 'A'. This information can be useful for the
  51  *                      receiver.
  52  * 05                   Usually, this byte contains the character '0'. If the
  53  *                      VFS module is configured for encryption of the data,
  54  *                      this byte is set to 'E'.
  55  * 06-09                These bytes contain the character '0' by default, and
  56  *                      are reserved for possible future extensions. They have
  57  *                      no function in 2.0.
  58  * 10-27                17 bytes containing a string representation of the
  59  *                      number of bytes to come in the following data block.
  60  *                      It is right aligned and filled from the left with '0'.
  61  *
  62  * -->Data Block<--
  63  * The data block is send immediately after the header was send. It's length
  64  * is exactly what was given in bytes 11-28 from in the header.
  65  *
  66  * The data block may be send encrypted.
  67  *
  68  * To make the data block easy for the receiver to read, it is divided into
  69  * several sub-blocks, each with it's own header of four byte length. In each
  70  * of the sub-headers, a string representation of the length of this block is
  71  * to be found.
  72  *
  73  * Thus the formal structure is very simple:
  74  *
  75  * [HEADER]data[HEADER]data[HEADER]data[END]
  76  *
  77  * whereas [END] is exactly at the position given in bytes 11-28 of the
  78  * header.
  79  *
  80  * Some data the VFS module is capturing is of use for any VFS operation.
  81  * Therefore, there is a "common set" of data, that will be send with any
  82  * data block. The following provides a list of this data.
  83  * - the VFS function identifier (see VFS function ifentifier table below).
  84  * - a timestamp to the millisecond.
  85  * - the username (as text) who runs the VFS operation.
  86  * - the SID of the user who run the VFS operation.
  87  * - the domain under which the VFS operation has happened.
  88  *
  89  */
  90
  91
  92 /* VFS Functions identifier table. In protocol version 2, every vfs     */
  93 /* function is given a unique id.                                       */
  94 enum vfs_id {
  95         /* care for the order here, required for compatibility  */
  96         /* with protocol version 1.                             */
  97         vfs_id_read,
  98         vfs_id_pread,
  99         vfs_id_write,
 100         vfs_id_pwrite,
 101         /* end of protocol version 1 identifiers.               */
 102         vfs_id_mkdir,
 103         vfs_id_rmdir,
 104         vfs_id_rename,
 105         vfs_id_chdir
 106 };
 107
 108 /* Specific data sets for the VFS functions.                            */
 109
 110 struct mkdir_data {
 111         const char *path;
 112         mode_t mode;
 113         int result;
 114 };
 115
 116 struct rmdir_data {
 117         const char *path;
 118         int result;
 119 };
 120
 121 struct rename_data {
 122         const char *src;
 123         const char *dst;
 124         int result;
 125 };
 126
 127 struct chdir_data {
 128         const char *path;
 129         int result;
 130 };
 131
 132 /* rw_data used for read/write/pread/pwrite                             */
 133 struct rw_data {
 134         char *filename;
 135         size_t len;
 136 };
 137
 138 static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
 139
 140 static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
 141 {
 142         connection_struct *conn = handle->conn;
 143         const char *Mode;
 144         Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
 145                         "internet_socket");
 146         if (strstr(Mode,"unix_domain_socket")) {
 147                 return UNIX_DOMAIN_SOCKET;
 148         } else {
 149                 return INTERNET_SOCKET;
 150         }
 151 }
 152
 153
 154 /* Connect to an internet socket */
 155
 156 static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
 157                                         const char *name, uint16_t port)
 158 {
 159         /* Create a streaming Socket */
 160         int sockfd = -1;
 161         struct addrinfo hints;
 162         struct addrinfo *ailist = NULL;
 163         struct addrinfo *res = NULL;
 164         int ret;
 165
 166         ZERO_STRUCT(hints);
 167         /* By default make sure it supports TCP. */
 168         hints.ai_socktype = SOCK_STREAM;
 169         hints.ai_flags = AI_ADDRCONFIG;
 170
 171         ret = getaddrinfo(name,
 172                         NULL,
 173                         &hints,
 174                         &ailist);
 175
 176         if (ret) {
 177                 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
 178                         "getaddrinfo failed for name %s [%s]\n",
 179                         name,
 180                         gai_strerror(ret) ));
 181                 return -1;
 182         }
 183
 184         DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
 185                 "Port: %i\n", name, port));
 186
 187         for (res = ailist; res; res = res->ai_next) {
 188                 struct sockaddr_storage ss;
 189                 NTSTATUS status;
 190
 191                 if (!res->ai_addr || res->ai_addrlen == 0) {
 192                         continue;
 193                 }
 194
 195                 ZERO_STRUCT(ss);
 196                 memcpy(&ss, res->ai_addr, res->ai_addrlen);
 197
 198                 status = open_socket_out(&ss, port, 10000, &sockfd);
 199                 if (NT_STATUS_IS_OK(status)) {
 200                         break;
 201                 }
 202         }
 203
 204         if (ailist) {
 205                 freeaddrinfo(ailist);
 206         }
 207
 208         if (sockfd == -1) {
 209                 DEBUG(1, ("smb_traffic_analyzer: unable to create "
 210                         "socket, error is %s",
 211                         strerror(errno)));
 212                 return -1;
 213         }
 214
 215         return sockfd;
 216 }
 217
 218 /* Connect to a unix domain socket */
 219
 220 static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
 221                                                 const char *name)
 222 {
 223         /* Create the socket to stad */
 224         int len, sock;
 225         struct sockaddr_un remote;
 226
 227         DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
 228                         "Unix domain socket mode. Using %s\n",
 229                         name ));
 230
 231         if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
 232                 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
 233                         "Couldn't create socket, "
 234                         "make sure stad is running!\n"));
 235                 return -1;
 236         }
 237         remote.sun_family = AF_UNIX;
 238         strlcpy(remote.sun_path, name,
 239                     sizeof(remote.sun_path));
 240         len=strlen(remote.sun_path) + sizeof(remote.sun_family);
 241         if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
 242                 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
 243                         "Could not connect to "
 244                         "socket, make sure\nstad is running!\n"));
 245                 close(sock);
 246                 return -1;
 247         }
 248         return sock;
 249 }
 250
 251 /* Private data allowing shared connection sockets.     */
 252
 253 struct refcounted_sock {
 254         struct refcounted_sock *next, *prev;
 255         char *name;
 256         uint16_t port;
 257         int sock;
 258         unsigned int ref_count;
 259 };
 260
 261
 262 /* The marshaller for the protocol version 2.           */
 263 static char *smb_traffic_analyzer_create_string( struct tm *tm, \
 264         int seconds, vfs_handle_struct *handle, \
 265         char *username, int vfs_operation, int count, ... )
 266 {
 267
 268         va_list ap;
 269         char *arg = NULL;
 270         int len;
 271         char *header = NULL;
 272         char *buf = NULL;
 273         char *timestr = NULL;
 274         char *opstr = NULL;
 275         char *userSID = NULL;
 276
 277         /* first create the data that is transfered with any VFS op     */
 278         opstr = talloc_asprintf(talloc_tos(), "%i", vfs_operation);
 279         len = strlen(opstr);
 280         buf = talloc_asprintf(talloc_tos(), "%04u%s", len, opstr);
 281         len = strlen( username );
 282         buf = talloc_asprintf_append(buf, "%04u%s", len, username);
 283         userSID = dom_sid_string( talloc_tos(),
 284                 &handle->conn->server_info->ptok->user_sids[0]);
 285         len = strlen( userSID );
 286         buf = talloc_asprintf_append(buf, "%04u%s", len, userSID);
 287         len = strlen( handle->conn->connectpath );
 288         buf = talloc_asprintf_append( buf, "%04u%s", len, \
 289                 handle->conn->connectpath );
 290         len = strlen( pdb_get_domain(handle->conn->server_info->sam_account) );
 291         buf = talloc_asprintf_append( buf, "%04u%s", len, \
 292                 pdb_get_domain(handle->conn->server_info->sam_account) );
 293         timestr = talloc_asprintf(talloc_tos(), \
 294                 "%04d-%02d-%02d %02d:%02d:%02d.%03d", \
 295                 tm->tm_year+1900, \
 296                 tm->tm_mon+1, \
 297                 tm->tm_mday, \
 298                 tm->tm_hour, \
 299                 tm->tm_min, \
 300                 tm->tm_sec, \
 301                 (int)seconds);
 302         len = strlen( timestr );
 303         buf = talloc_asprintf_append( buf, "%04u%s", len, timestr);
 304
 305         va_start( ap, count );
 306         while ( count-- ) {
 307                 arg = va_arg( ap, char * );
 308                 /* protocol v2 sends a four byte string */
 309                 /* as a header to each block, including */
 310                 /* the numbers of bytes to come in the  */
 311                 /* next string.                         */
 312                 len = strlen( arg );
 313                 buf = talloc_asprintf_append( buf, "%04u%s", len, arg);
 314         }
 315         va_end( ap );
 316         return buf;
 317 }
 318
 319 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
 320                                         void *data,
 321                                         enum vfs_id vfs_operation )
 322 {
 323         struct refcounted_sock *rf_sock = NULL;
 324         struct timeval tv;
 325         time_t tv_sec;
 326         struct tm *tm = NULL;
 327         int seconds;
 328         char *str = NULL;
 329         char *username = NULL;
 330         char *header = NULL;
 331         const char *anon_prefix = NULL;
 332         const char *total_anonymization = NULL;
 333         const char *protocol_version = NULL;
 334         bool Write = false;
 335         size_t len;
 336         char state_flags[9] = "000000\0";
 337
 338         SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
 339
 340         if (rf_sock == NULL || rf_sock->sock == -1) {
 341                 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
 342                         "closed\n"));
 343                 return;
 344         }
 345
 346         GetTimeOfDay(&tv);
 347         tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
 348         tm = localtime(&tv_sec);
 349         if (!tm) {
 350                 return;
 351         }
 352         seconds=(float) (tv.tv_usec / 1000);
 353
 354         /* check if anonymization is required */
 355
 356         total_anonymization=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",
 357                                         "total_anonymization", NULL);
 358
 359         anon_prefix=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",\
 360                                         "anonymize_prefix", NULL );
 361         if (anon_prefix!=NULL) {
 362                 state_flags[1] = 'A';
 363                 if (total_anonymization!=NULL) {
 364                         username = talloc_asprintf(talloc_tos(),
 365                                 "%s",
 366                                 anon_prefix);
 367                 } else {
 368                         username = talloc_asprintf(talloc_tos(),
 369                                 "%s%i",
 370                                 anon_prefix,
 371                                 str_checksum(
 372                                         handle->conn->server_info->sanitized_username ) );
 373                 }
 374
 375         } else {
 376                 username = handle->conn->server_info->sanitized_username;
 377         }
 378
 379         if (!username) {
 380                 return;
 381         }
 382         protocol_version = lp_parm_const_string(SNUM(handle->conn),
 383                 "smb_traffic_analyzer",
 384                 "protocol_version", NULL );
 385
 386         if ( protocol_version == NULL || strcmp( protocol_version,"V1") == 0) {
 387
 388                 struct rw_data *s_data = (struct rw_data *) data;
 389
 390                 /* in case of protocol v1, ignore any vfs operations    */
 391                 /* except read,pread,write,pwrite, and set the "Write"  */
 392                 /* bool accordingly, send data and return.              */
 393
 394                 if ( vfs_operation > vfs_id_pwrite ) return;
 395
 396                 if ( vfs_operation <= vfs_id_pread ) Write=false;
 397                         else Write=true;
 398
 399                 str = talloc_asprintf(talloc_tos(),
 400                         "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
 401                         "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
 402                         (unsigned int) s_data->len,
 403                         username,
 404                         pdb_get_domain(handle->conn->server_info->sam_account),
 405                         Write ? 'W' : 'R',
 406                         handle->conn->connectpath,
 407                         s_data->filename,
 408                         tm->tm_year+1900,
 409                         tm->tm_mon+1,
 410                         tm->tm_mday,
 411                         tm->tm_hour,
 412                         tm->tm_min,
 413                         tm->tm_sec,
 414                         (int)seconds);
 415                 if (write_data(rf_sock->sock, str, len) != len) {
 416                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 417                         "error sending V1 protocol data to socket!\n"));
 418                 return;
 419                 }
 420
 421         } else if ( strcmp( protocol_version, "V2") == 0) {
 422
 423                 switch( vfs_operation ) {
 424                 case vfs_id_mkdir: ;
 425                         str = smb_traffic_analyzer_create_string( tm, \
 426                                 seconds, handle, username, vfs_id_mkdir, 3,\
 427                                 ((struct mkdir_data *) data)->path, \
 428                                 talloc_asprintf( talloc_tos(), "%u", \
 429                                 ((struct mkdir_data *) data)->mode), \
 430                                 talloc_asprintf( talloc_tos(), "%u", \
 431                                 ((struct mkdir_data *) data)->result ));
 432                         break;
 433                 case vfs_id_rmdir: ;
 434                         str = smb_traffic_analyzer_create_string( tm, \
 435                                 seconds, handle, username, vfs_id_rmdir, 2,\
 436                                 ((struct rmdir_data *) data)->path, \
 437                                 talloc_asprintf( talloc_tos(), "%u", \
 438                                 ((struct rmdir_data *) data)->result ));
 439                         break;
 440                 case vfs_id_rename: ;
 441                         str = smb_traffic_analyzer_create_string( tm, \
 442                                 seconds, handle, username, vfs_id_rename, 3,\
 443                                 ((struct rename_data *) data)->src, \
 444                                 ((struct rename_data *) data)->dst,
 445                                 talloc_asprintf(talloc_tos(), "%u", \
 446                                 ((struct rename_data *) data)->result));
 447                         break;
 448                 case vfs_id_chdir: ;
 449                         str = smb_traffic_analyzer_create_string( tm, \
 450                                 seconds, handle, username, vfs_id_chdir, 2,\
 451                                 ((struct chdir_data *) data)->path, \
 452                                 talloc_asprintf(talloc_tos(), "%u", \
 453                                 ((struct chdir_data *) data)->result));
 454                         break;
 455
 456                 case vfs_id_write:
 457                 case vfs_id_pwrite:
 458                 case vfs_id_read:
 459                 case vfs_id_pread: ;
 460                         str = smb_traffic_analyzer_create_string( tm, \
 461                                 seconds, handle, username, vfs_operation, 2,\
 462                                 ((struct rw_data *) data)->filename, \
 463                                 talloc_asprintf(talloc_tos(), "%u", \
 464                                 ((struct rw_data *) data)->len));
 465                         break;
 466                 default:
 467                         DEBUG(1, ("smb_traffic_analyzer: error! "
 468                                 "wrong VFS operation id detected!\n"));
 469                         return;
 470                 }
 471
 472         } else {
 473                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 474                         "error, unkown protocol given!\n"));
 475                 return;
 476         }
 477
 478         if (!str) {
 479                 DEBUG(1, ("smb_traffic_analyzer_send_data: "
 480                         "unable to create string to send!\n"));
 481                 return;
 482         }
 483
 484
 485         /* If configured, optain the key and run AES encryption */
 486         /* over the data.                                       */
 487         size_t size;
 488         char *akey = secrets_fetch("smb_traffic_analyzer_key", &size);
 489         if ( akey != NULL ) {
 490                 char *crypted;
 491                 state_flags[2] = 'E';
 492                 DEBUG(10, ("smb_traffic_analyzer: a key was found, encrypting "
 493                         "data!"));
 494                 AES_KEY *key;
 495                 samba_AES_set_encrypt_key(akey, 128, key);
 496                 samba_AES_encrypt( str, crypted, key );
 497                 len = strlen( crypted );
 498                 header = talloc_asprintf( talloc_tos(), "V2.%s%017u",
 499                                                 state_flags, len);
 500
 501                 DEBUG(10, ("smb_traffic_analyzer_send_data_socket:"
 502                         " header created for crypted data: %s", header));
 503                 len = strlen(header);
 504                 if (write_data(rf_sock->sock, header, len) != len) {
 505                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 506                                                 "error sending the header"
 507                                                  " over the socket!\n"));
 508                 }
 509                 len = strlen(crypted);
 510                 if (write_data(rf_sock->sock, crypted, len) != len) {
 511                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 512                                 "error sending crypted data to socket!\n"));
 513                 free( crypted );
 514                 return ;
 515                 }
 516         }
 517
 518         len = strlen(str);
 519         header = talloc_asprintf(talloc_tos(), "V2.%s%017u", state_flags, len);
 520         DEBUG(10, ("smb_traffic_analyzer_send_data_socket: header created:"
 521                                                         "%s\n", header));
 522         len = strlen(header);
 523         if (write_data(rf_sock->sock, header, len) != len) {
 524                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: error "
 525                         "sending the header over the socket!\n"));
 526         }
 527         len = strlen(str);
 528         DEBUG(10, ("smb_traffic_analyzer_send_data_socket: going to send "
 529                         "data block: %s\n",str));
 530         if (write_data(rf_sock->sock, str, len) != len) {
 531                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 532                         "error sending data to socket!\n"));
 533                 return ;
 534         }
 535 }
 536
 537 static struct refcounted_sock *sock_list;
 538
 539 static void smb_traffic_analyzer_free_data(void **pptr)
 540 {
 541         struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
 542         if (rf_sock == NULL) {
 543                 return;
 544         }
 545         rf_sock->ref_count--;
 546         if (rf_sock->ref_count != 0) {
 547                 return;
 548         }
 549         if (rf_sock->sock != -1) {
 550                 close(rf_sock->sock);
 551         }
 552         DLIST_REMOVE(sock_list, rf_sock);
 553         TALLOC_FREE(rf_sock);
 554 }
 555
 556 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
 557                          const char *service,
 558                          const char *user)
 559 {
 560         connection_struct *conn = handle->conn;
 561         enum sock_type st = smb_traffic_analyzer_connMode(handle);
 562         struct refcounted_sock *rf_sock = NULL;
 563         const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
 564                                 lp_parm_const_string(SNUM(conn),
 565                                         "smb_traffic_analyzer",
 566                                 "host", "localhost");
 567         uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
 568                                 atoi( lp_parm_const_string(SNUM(conn),
 569                                 "smb_traffic_analyzer", "port", "9430"));
 570         int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
 571
 572         if (ret < 0) {
 573                 return ret;
 574         }
 575
 576         /* Are we already connected ? */
 577         for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
 578                 if (port == rf_sock->port &&
 579                                 (strcmp(name, rf_sock->name) == 0)) {
 580                         break;
 581                 }
 582         }
 583
 584         /* If we're connected already, just increase the
 585          * reference count. */
 586         if (rf_sock) {
 587                 rf_sock->ref_count++;
 588         } else {
 589                 /* New connection. */
 590                 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
 591                 if (rf_sock == NULL) {
 592                         SMB_VFS_NEXT_DISCONNECT(handle);
 593                         errno = ENOMEM;
 594                         return -1;
 595                 }
 596                 rf_sock->name = talloc_strdup(rf_sock, name);
 597                 if (rf_sock->name == NULL) {
 598                         SMB_VFS_NEXT_DISCONNECT(handle);
 599                         TALLOC_FREE(rf_sock);
 600                         errno = ENOMEM;
 601                         return -1;
 602                 }
 603                 rf_sock->port = port;
 604                 rf_sock->ref_count = 1;
 605
 606                 if (st == UNIX_DOMAIN_SOCKET) {
 607                         rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
 608                                                         name);
 609                 } else {
 610
 611                         rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
 612                                                         name,
 613                                                         port);
 614                 }
 615                 if (rf_sock->sock == -1) {
 616                         SMB_VFS_NEXT_DISCONNECT(handle);
 617                         TALLOC_FREE(rf_sock);
 618                         return -1;
 619                 }
 620                 DLIST_ADD(sock_list, rf_sock);
 621         }
 622
 623         /* Store the private data. */
 624         SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
 625                                 struct refcounted_sock, return -1);
 626         return 0;
 627 }
 628
 629 /* VFS Functions */
 630 static int smb_traffic_analyzer_chdir(vfs_handle_struct *handle, \
 631                         const char *path)
 632 {
 633         struct chdir_data s_data;
 634         s_data.result = SMB_VFS_NEXT_CHDIR(handle, path);
 635         s_data.path = path;
 636         DEBUG(10, ("smb_traffic_analyzer_chdir: CHDIR: %s\n", path));
 637         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_chdir);
 638         return s_data.result;
 639 }
 640
 641 static int smb_traffic_analyzer_rename(vfs_handle_struct *handle, \
 642                 const struct smb_filename *smb_fname_src,
 643                 const struct smb_filename *smb_fname_dst)
 644 {
 645         struct rename_data s_data;
 646         s_data.result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, \
 647                 smb_fname_dst);
 648         s_data.src = smb_fname_src->base_name;
 649         s_data.dst = smb_fname_dst->base_name;
 650         DEBUG(10, ("smb_traffic_analyzer_rename: RENAME: %s / %s\n",
 651                 smb_fname_src->base_name,
 652                 smb_fname_dst->base_name));
 653         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rename);
 654         return s_data.result;
 655 }
 656
 657 static int smb_traffic_analyzer_rmdir(vfs_handle_struct *handle, \
 658                         const char *path)
 659 {
 660         struct rmdir_data s_data;
 661         s_data.result = SMB_VFS_NEXT_RMDIR(handle, path);
 662         s_data.path = path;
 663         DEBUG(10, ("smb_traffic_analyzer_rmdir: RMDIR: %s\n", path));
 664         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rmdir);
 665         return s_data.result;
 666 }
 667
 668 static int smb_traffic_analyzer_mkdir(vfs_handle_struct *handle, \
 669                         const char *path, mode_t mode)
 670 {
 671         struct mkdir_data s_data;
 672         s_data.result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
 673         s_data.path = path;
 674         s_data.mode = mode;
 675         DEBUG(10, ("smb_traffic_analyzer_mkdir: MKDIR: %s\n", path));
 676         smb_traffic_analyzer_send_data(handle,
 677                         &s_data,
 678                         vfs_id_mkdir);
 679         return s_data.result;
 680 }
 681
 682 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
 683                                 files_struct *fsp, void *data, size_t n)
 684 {
 685         struct rw_data s_data;
 686
 687         s_data.len = SMB_VFS_NEXT_READ(handle, fsp, data, n);
 688         s_data.filename = fsp->fsp_name->base_name;
 689         DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp_str_dbg(fsp)));
 690
 691         smb_traffic_analyzer_send_data(handle,
 692                         &s_data,
 693                         vfs_id_read);
 694         return s_data.len;
 695 }
 696
 697
 698 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
 699                 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
 700 {
 701         struct rw_data s_data;
 702
 703         s_data.len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 704         s_data.filename = fsp->fsp_name->base_name;
 705         DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n",
 706                    fsp_str_dbg(fsp)));
 707
 708         smb_traffic_analyzer_send_data(handle,
 709                         &s_data,
 710                         vfs_id_pread);
 711
 712         return s_data.len;
 713 }
 714
 715 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
 716                         files_struct *fsp, const void *data, size_t n)
 717 {
 718         struct rw_data s_data;
 719
 720         s_data.len = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
 721         s_data.filename = fsp->fsp_name->base_name;
 722         DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n",
 723                    fsp_str_dbg(fsp)));
 724
 725         smb_traffic_analyzer_send_data(handle,
 726                         &s_data,
 727                         vfs_id_write);
 728         return s_data.len;
 729 }
 730
 731 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
 732              files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
 733 {
 734         struct rw_data s_data;
 735
 736         s_data.len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 737         s_data.filename = fsp->fsp_name->base_name;
 738         DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", \
 739                 fsp_str_dbg(fsp)));
 740
 741         smb_traffic_analyzer_send_data(handle,
 742                         &s_data,
 743                         vfs_id_pwrite);
 744         return s_data.len;
 745 }
 746
 747 static struct vfs_fn_pointers vfs_smb_traffic_analyzer_fns = {
 748         .connect_fn = smb_traffic_analyzer_connect,
 749         .vfs_read = smb_traffic_analyzer_read,
 750         .pread = smb_traffic_analyzer_pread,
 751         .write = smb_traffic_analyzer_write,
 752         .pwrite = smb_traffic_analyzer_pwrite,
 753         .mkdir = smb_traffic_analyzer_mkdir,
 754         .rename = smb_traffic_analyzer_rename,
 755         .chdir = smb_traffic_analyzer_chdir
 756 };
 757
 758 /* Module initialization */
 759
 760 NTSTATUS vfs_smb_traffic_analyzer_init(void)
 761 {
 762         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
 763                                         "smb_traffic_analyzer",
 764                                         &vfs_smb_traffic_analyzer_fns);
 765
 766         if (!NT_STATUS_IS_OK(ret)) {
 767                 return ret;
 768         }
 769
 770         vfs_smb_traffic_analyzer_debug_level =
 771                 debug_add_class("smb_traffic_analyzer");
 772
 773         if (vfs_smb_traffic_analyzer_debug_level == -1) {
 774                 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
 775                 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
 776                          "debugging class!\n"));
 777         } else {
 778                 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
 779                         "'smb_traffic_analyzer': %d\n", \
 780                         vfs_smb_traffic_analyzer_debug_level));
 781         }
 782
 783         return ret;
 784 }