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 /**
  93  * VFS Functions identifier table. In protocol version 2, every vfs
  94  * function is given a unique id.
  95  */
  96 enum vfs_id {
  97         /*
  98          * care for the order here, required for compatibility
  99          * with protocol version 1.
 100          */
 101         vfs_id_read,
 102         vfs_id_pread,
 103         vfs_id_write,
 104         vfs_id_pwrite,
 105         /* end of protocol version 1 identifiers. */
 106         vfs_id_mkdir,
 107         vfs_id_rmdir,
 108         vfs_id_rename,
 109         vfs_id_chdir
 110 };
 111
 112 /*
 113  * Specific data sets for the VFS functions.
 114  * A compatible receiver has to have the exact same dataset.
 115  */
 116 struct mkdir_data {
 117         const char *path;
 118         mode_t mode;
 119         int result;
 120 };
 121
 122 struct rmdir_data {
 123         const char *path;
 124         int result;
 125 };
 126
 127 struct rename_data {
 128         const char *src;
 129         const char *dst;
 130         int result;
 131 };
 132
 133 struct chdir_data {
 134         const char *path;
 135         int result;
 136 };
 137
 138 /* rw_data used for read/write/pread/pwrite */
 139 struct rw_data {
 140         char *filename;
 141         size_t len;
 142 };
 143
 144 static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
 145
 146 static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
 147 {
 148         connection_struct *conn = handle->conn;
 149         const char *Mode;
 150         Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
 151                         "internet_socket");
 152         if (strstr(Mode,"unix_domain_socket")) {
 153                 return UNIX_DOMAIN_SOCKET;
 154         } else {
 155                 return INTERNET_SOCKET;
 156         }
 157 }
 158
 159
 160 /* Connect to an internet socket */
 161 static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
 162                                         const char *name, uint16_t port)
 163 {
 164         /* Create a streaming Socket */
 165         int sockfd = -1;
 166         struct addrinfo hints;
 167         struct addrinfo *ailist = NULL;
 168         struct addrinfo *res = NULL;
 169         int ret;
 170
 171         ZERO_STRUCT(hints);
 172         /* By default make sure it supports TCP. */
 173         hints.ai_socktype = SOCK_STREAM;
 174         hints.ai_flags = AI_ADDRCONFIG;
 175
 176         ret = getaddrinfo(name,
 177                         NULL,
 178                         &hints,
 179                         &ailist);
 180
 181         if (ret) {
 182                 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
 183                         "getaddrinfo failed for name %s [%s]\n",
 184                         name,
 185                         gai_strerror(ret) ));
 186                 return -1;
 187         }
 188
 189         DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
 190                 "Port: %i\n", name, port));
 191
 192         for (res = ailist; res; res = res->ai_next) {
 193                 struct sockaddr_storage ss;
 194                 NTSTATUS status;
 195
 196                 if (!res->ai_addr || res->ai_addrlen == 0) {
 197                         continue;
 198                 }
 199
 200                 ZERO_STRUCT(ss);
 201                 memcpy(&ss, res->ai_addr, res->ai_addrlen);
 202
 203                 status = open_socket_out(&ss, port, 10000, &sockfd);
 204                 if (NT_STATUS_IS_OK(status)) {
 205                         break;
 206                 }
 207         }
 208
 209         if (ailist) {
 210                 freeaddrinfo(ailist);
 211         }
 212
 213         if (sockfd == -1) {
 214                 DEBUG(1, ("smb_traffic_analyzer: unable to create "
 215                         "socket, error is %s",
 216                         strerror(errno)));
 217                 return -1;
 218         }
 219
 220         return sockfd;
 221 }
 222
 223 /* Connect to a unix domain socket */
 224 static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
 225                                                 const char *name)
 226 {
 227         /* Create the socket to stad */
 228         int len, sock;
 229         struct sockaddr_un remote;
 230
 231         DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
 232                         "Unix domain socket mode. Using %s\n",
 233                         name ));
 234
 235         if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
 236                 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
 237                         "Couldn't create socket, "
 238                         "make sure stad is running!\n"));
 239                 return -1;
 240         }
 241         remote.sun_family = AF_UNIX;
 242         strlcpy(remote.sun_path, name,
 243                     sizeof(remote.sun_path));
 244         len=strlen(remote.sun_path) + sizeof(remote.sun_family);
 245         if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
 246                 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
 247                         "Could not connect to "
 248                         "socket, make sure\nstad is running!\n"));
 249                 close(sock);
 250                 return -1;
 251         }
 252         return sock;
 253 }
 254
 255 /* Private data allowing shared connection sockets. */
 256 struct refcounted_sock {
 257         struct refcounted_sock *next, *prev;
 258         char *name;
 259         uint16_t port;
 260         int sock;
 261         unsigned int ref_count;
 262 };
 263
 264
 265 /* The marshaller for the protocol version 2. */
 266 static char *smb_traffic_analyzer_create_string( struct tm *tm, \
 267         int seconds, vfs_handle_struct *handle, \
 268         char *username, int vfs_operation, int count, ... )
 269 {
 270
 271         va_list ap;
 272         char *arg = NULL;
 273         int len;
 274         char *header = NULL;
 275         char *buf = NULL;
 276         char *timestr = NULL;
 277         char *opstr = NULL;
 278         char *userSID = NULL;
 279
 280         /* first create the data that is transfered with any VFS op */
 281         opstr = talloc_asprintf(talloc_tos(), "%i", vfs_operation);
 282         len = strlen(opstr);
 283         buf = talloc_asprintf(talloc_tos(), "%04u%s", len, opstr);
 284         len = strlen( username );
 285         buf = talloc_asprintf_append(buf, "%04u%s", len, username);
 286         userSID = dom_sid_string( talloc_tos(),
 287                 &handle->conn->server_info->ptok->user_sids[0]);
 288         len = strlen( userSID );
 289         buf = talloc_asprintf_append(buf, "%04u%s", len, userSID);
 290         len = strlen( handle->conn->connectpath );
 291         buf = talloc_asprintf_append( buf, "%04u%s", len, \
 292                 handle->conn->connectpath );
 293         len = strlen( pdb_get_domain(handle->conn->server_info->sam_account) );
 294         buf = talloc_asprintf_append( buf, "%04u%s", len, \
 295                 pdb_get_domain(handle->conn->server_info->sam_account) );
 296         timestr = talloc_asprintf(talloc_tos(), \
 297                 "%04d-%02d-%02d %02d:%02d:%02d.%03d", \
 298                 tm->tm_year+1900, \
 299                 tm->tm_mon+1, \
 300                 tm->tm_mday, \
 301                 tm->tm_hour, \
 302                 tm->tm_min, \
 303                 tm->tm_sec, \
 304                 (int)seconds);
 305         len = strlen( timestr );
 306         buf = talloc_asprintf_append( buf, "%04u%s", len, timestr);
 307
 308         va_start( ap, count );
 309         while ( count-- ) {
 310                 arg = va_arg( ap, char * );
 311                 /*
 312                  *  protocol v2 sends a four byte string
 313                  * as a header to each block, including
 314                  * the numbers of bytes to come in the
 315                  * next string.
 316                  */
 317                 len = strlen( arg );
 318                 buf = talloc_asprintf_append( buf, "%04u%s", len, arg);
 319         }
 320         va_end( ap );
 321         return buf;
 322 }
 323
 324 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
 325                                         void *data,
 326                                         enum vfs_id vfs_operation )
 327 {
 328         struct refcounted_sock *rf_sock = NULL;
 329         struct timeval tv;
 330         time_t tv_sec;
 331         struct tm *tm = NULL;
 332         int seconds;
 333         char *str = NULL;
 334         char *username = NULL;
 335         char *header = NULL;
 336         const char *anon_prefix = NULL;
 337         const char *total_anonymization = NULL;
 338         const char *protocol_version = NULL;
 339         bool Write = false;
 340         size_t len;
 341         char state_flags[9] = "000000\0";
 342
 343         SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
 344
 345         if (rf_sock == NULL || rf_sock->sock == -1) {
 346                 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
 347                         "closed\n"));
 348                 return;
 349         }
 350
 351         GetTimeOfDay(&tv);
 352         tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
 353         tm = localtime(&tv_sec);
 354         if (!tm) {
 355                 return;
 356         }
 357         seconds=(float) (tv.tv_usec / 1000);
 358
 359         /* check if anonymization is required */
 360         total_anonymization=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",
 361                                         "total_anonymization", NULL);
 362
 363         anon_prefix=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",\
 364                                         "anonymize_prefix", NULL );
 365         if (anon_prefix!=NULL) {
 366                 state_flags[1] = 'A';
 367                 if (total_anonymization!=NULL) {
 368                         username = talloc_asprintf(talloc_tos(),
 369                                 "%s",
 370                                 anon_prefix);
 371                 } else {
 372                         username = talloc_asprintf(talloc_tos(),
 373                                 "%s%i",
 374                                 anon_prefix,
 375                                 str_checksum(
 376                                         handle->conn->server_info->sanitized_username ) );
 377                 }
 378
 379         } else {
 380                 username = handle->conn->server_info->sanitized_username;
 381         }
 382
 383         if (!username) {
 384                 return;
 385         }
 386         protocol_version = lp_parm_const_string(SNUM(handle->conn),
 387                 "smb_traffic_analyzer",
 388                 "protocol_version", NULL );
 389
 390         if ( protocol_version == NULL || strcmp( protocol_version,"V1") == 0) {
 391
 392                 struct rw_data *s_data = (struct rw_data *) data;
 393
 394                 /*
 395                  * in case of protocol v1, ignore any vfs operations
 396                  * except read,pread,write,pwrite, and set the "Write"
 397                  * bool accordingly, send data and return.
 398                  */
 399                 if ( vfs_operation > vfs_id_pwrite ) return;
 400
 401                 if ( vfs_operation <= vfs_id_pread ) Write=false;
 402                         else Write=true;
 403
 404                 str = talloc_asprintf(talloc_tos(),
 405                         "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
 406                         "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
 407                         (unsigned int) s_data->len,
 408                         username,
 409                         pdb_get_domain(handle->conn->server_info->sam_account),
 410                         Write ? 'W' : 'R',
 411                         handle->conn->connectpath,
 412                         s_data->filename,
 413                         tm->tm_year+1900,
 414                         tm->tm_mon+1,
 415                         tm->tm_mday,
 416                         tm->tm_hour,
 417                         tm->tm_min,
 418                         tm->tm_sec,
 419                         (int)seconds);
 420                 if (write_data(rf_sock->sock, str, len) != len) {
 421                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 422                         "error sending V1 protocol data to socket!\n"));
 423                 return;
 424                 }
 425
 426         } else if ( strcmp( protocol_version, "V2") == 0) {
 427
 428                 switch( vfs_operation ) {
 429                 case vfs_id_mkdir: ;
 430                         str = smb_traffic_analyzer_create_string( tm, \
 431                                 seconds, handle, username, vfs_id_mkdir, 3,\
 432                                 ((struct mkdir_data *) data)->path, \
 433                                 talloc_asprintf( talloc_tos(), "%u", \
 434                                 ((struct mkdir_data *) data)->mode), \
 435                                 talloc_asprintf( talloc_tos(), "%u", \
 436                                 ((struct mkdir_data *) data)->result ));
 437                         break;
 438                 case vfs_id_rmdir: ;
 439                         str = smb_traffic_analyzer_create_string( tm, \
 440                                 seconds, handle, username, vfs_id_rmdir, 2,\
 441                                 ((struct rmdir_data *) data)->path, \
 442                                 talloc_asprintf( talloc_tos(), "%u", \
 443                                 ((struct rmdir_data *) data)->result ));
 444                         break;
 445                 case vfs_id_rename: ;
 446                         str = smb_traffic_analyzer_create_string( tm, \
 447                                 seconds, handle, username, vfs_id_rename, 3,\
 448                                 ((struct rename_data *) data)->src, \
 449                                 ((struct rename_data *) data)->dst,
 450                                 talloc_asprintf(talloc_tos(), "%u", \
 451                                 ((struct rename_data *) data)->result));
 452                         break;
 453                 case vfs_id_chdir: ;
 454                         str = smb_traffic_analyzer_create_string( tm, \
 455                                 seconds, handle, username, vfs_id_chdir, 2,\
 456                                 ((struct chdir_data *) data)->path, \
 457                                 talloc_asprintf(talloc_tos(), "%u", \
 458                                 ((struct chdir_data *) data)->result));
 459                         break;
 460
 461                 case vfs_id_write:
 462                 case vfs_id_pwrite:
 463                 case vfs_id_read:
 464                 case vfs_id_pread: ;
 465                         str = smb_traffic_analyzer_create_string( tm, \
 466                                 seconds, handle, username, vfs_operation, 2,\
 467                                 ((struct rw_data *) data)->filename, \
 468                                 talloc_asprintf(talloc_tos(), "%u", \
 469                                 ((struct rw_data *) data)->len));
 470                         break;
 471                 default:
 472                         DEBUG(1, ("smb_traffic_analyzer: error! "
 473                                 "wrong VFS operation id detected!\n"));
 474                         return;
 475                 }
 476
 477         } else {
 478                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 479                         "error, unkown protocol given!\n"));
 480                 return;
 481         }
 482
 483         if (!str) {
 484                 DEBUG(1, ("smb_traffic_analyzer_send_data: "
 485                         "unable to create string to send!\n"));
 486                 return;
 487         }
 488
 489
 490         /*
 491          * If configured, optain the key and run AES encryption
 492          * over the data.
 493          */
 494         size_t size;
 495         char *akey = secrets_fetch("smb_traffic_analyzer_key", &size);
 496         if ( akey != NULL ) {
 497                 char *crypted;
 498                 state_flags[2] = 'E';
 499                 DEBUG(10, ("smb_traffic_analyzer: a key was found, encrypting "
 500                         "data!"));
 501                 AES_KEY *key;
 502                 samba_AES_set_encrypt_key(akey, 128, key);
 503                 samba_AES_encrypt( str, crypted, key );
 504                 len = strlen( crypted );
 505                 header = talloc_asprintf( talloc_tos(), "V2.%s%017u",
 506                                                 state_flags, len);
 507
 508                 DEBUG(10, ("smb_traffic_analyzer_send_data_socket:"
 509                         " header created for crypted data: %s", header));
 510                 len = strlen(header);
 511                 if (write_data(rf_sock->sock, header, len) != len) {
 512                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 513                                                 "error sending the header"
 514                                                  " over the socket!\n"));
 515                 }
 516                 len = strlen(crypted);
 517                 if (write_data(rf_sock->sock, crypted, len) != len) {
 518                         DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 519                                 "error sending crypted data to socket!\n"));
 520                 free( crypted );
 521                 return ;
 522                 }
 523         }
 524
 525         len = strlen(str);
 526         header = talloc_asprintf(talloc_tos(), "V2.%s%017u", state_flags, len);
 527         DEBUG(10, ("smb_traffic_analyzer_send_data_socket: header created:"
 528                                                         "%s\n", header));
 529         len = strlen(header);
 530         if (write_data(rf_sock->sock, header, len) != len) {
 531                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: error "
 532                         "sending the header over the socket!\n"));
 533         }
 534         len = strlen(str);
 535         DEBUG(10, ("smb_traffic_analyzer_send_data_socket: going to send "
 536                         "data block: %s\n",str));
 537         if (write_data(rf_sock->sock, str, len) != len) {
 538                 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
 539                         "error sending data to socket!\n"));
 540                 return ;
 541         }
 542 }
 543
 544 static struct refcounted_sock *sock_list;
 545
 546 static void smb_traffic_analyzer_free_data(void **pptr)
 547 {
 548         struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
 549         if (rf_sock == NULL) {
 550                 return;
 551         }
 552         rf_sock->ref_count--;
 553         if (rf_sock->ref_count != 0) {
 554                 return;
 555         }
 556         if (rf_sock->sock != -1) {
 557                 close(rf_sock->sock);
 558         }
 559         DLIST_REMOVE(sock_list, rf_sock);
 560         TALLOC_FREE(rf_sock);
 561 }
 562
 563 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
 564                          const char *service,
 565                          const char *user)
 566 {
 567         connection_struct *conn = handle->conn;
 568         enum sock_type st = smb_traffic_analyzer_connMode(handle);
 569         struct refcounted_sock *rf_sock = NULL;
 570         const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
 571                                 lp_parm_const_string(SNUM(conn),
 572                                         "smb_traffic_analyzer",
 573                                 "host", "localhost");
 574         uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
 575                                 atoi( lp_parm_const_string(SNUM(conn),
 576                                 "smb_traffic_analyzer", "port", "9430"));
 577         int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
 578
 579         if (ret < 0) {
 580                 return ret;
 581         }
 582
 583         /* Are we already connected ? */
 584         for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
 585                 if (port == rf_sock->port &&
 586                                 (strcmp(name, rf_sock->name) == 0)) {
 587                         break;
 588                 }
 589         }
 590
 591         /* If we're connected already, just increase the
 592          * reference count. */
 593         if (rf_sock) {
 594                 rf_sock->ref_count++;
 595         } else {
 596                 /* New connection. */
 597                 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
 598                 if (rf_sock == NULL) {
 599                         SMB_VFS_NEXT_DISCONNECT(handle);
 600                         errno = ENOMEM;
 601                         return -1;
 602                 }
 603                 rf_sock->name = talloc_strdup(rf_sock, name);
 604                 if (rf_sock->name == NULL) {
 605                         SMB_VFS_NEXT_DISCONNECT(handle);
 606                         TALLOC_FREE(rf_sock);
 607                         errno = ENOMEM;
 608                         return -1;
 609                 }
 610                 rf_sock->port = port;
 611                 rf_sock->ref_count = 1;
 612
 613                 if (st == UNIX_DOMAIN_SOCKET) {
 614                         rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
 615                                                         name);
 616                 } else {
 617
 618                         rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
 619                                                         name,
 620                                                         port);
 621                 }
 622                 if (rf_sock->sock == -1) {
 623                         SMB_VFS_NEXT_DISCONNECT(handle);
 624                         TALLOC_FREE(rf_sock);
 625                         return -1;
 626                 }
 627                 DLIST_ADD(sock_list, rf_sock);
 628         }
 629
 630         /* Store the private data. */
 631         SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
 632                                 struct refcounted_sock, return -1);
 633         return 0;
 634 }
 635
 636 /* VFS Functions */
 637 static int smb_traffic_analyzer_chdir(vfs_handle_struct *handle, \
 638                         const char *path)
 639 {
 640         struct chdir_data s_data;
 641         s_data.result = SMB_VFS_NEXT_CHDIR(handle, path);
 642         s_data.path = path;
 643         DEBUG(10, ("smb_traffic_analyzer_chdir: CHDIR: %s\n", path));
 644         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_chdir);
 645         return s_data.result;
 646 }
 647
 648 static int smb_traffic_analyzer_rename(vfs_handle_struct *handle, \
 649                 const struct smb_filename *smb_fname_src,
 650                 const struct smb_filename *smb_fname_dst)
 651 {
 652         struct rename_data s_data;
 653         s_data.result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, \
 654                 smb_fname_dst);
 655         s_data.src = smb_fname_src->base_name;
 656         s_data.dst = smb_fname_dst->base_name;
 657         DEBUG(10, ("smb_traffic_analyzer_rename: RENAME: %s / %s\n",
 658                 smb_fname_src->base_name,
 659                 smb_fname_dst->base_name));
 660         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rename);
 661         return s_data.result;
 662 }
 663
 664 static int smb_traffic_analyzer_rmdir(vfs_handle_struct *handle, \
 665                         const char *path)
 666 {
 667         struct rmdir_data s_data;
 668         s_data.result = SMB_VFS_NEXT_RMDIR(handle, path);
 669         s_data.path = path;
 670         DEBUG(10, ("smb_traffic_analyzer_rmdir: RMDIR: %s\n", path));
 671         smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rmdir);
 672         return s_data.result;
 673 }
 674
 675 static int smb_traffic_analyzer_mkdir(vfs_handle_struct *handle, \
 676                         const char *path, mode_t mode)
 677 {
 678         struct mkdir_data s_data;
 679         s_data.result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
 680         s_data.path = path;
 681         s_data.mode = mode;
 682         DEBUG(10, ("smb_traffic_analyzer_mkdir: MKDIR: %s\n", path));
 683         smb_traffic_analyzer_send_data(handle,
 684                         &s_data,
 685                         vfs_id_mkdir);
 686         return s_data.result;
 687 }
 688
 689 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
 690                                 files_struct *fsp, void *data, size_t n)
 691 {
 692         struct rw_data s_data;
 693
 694         s_data.len = SMB_VFS_NEXT_READ(handle, fsp, data, n);
 695         s_data.filename = fsp->fsp_name->base_name;
 696         DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp_str_dbg(fsp)));
 697
 698         smb_traffic_analyzer_send_data(handle,
 699                         &s_data,
 700                         vfs_id_read);
 701         return s_data.len;
 702 }
 703
 704
 705 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
 706                 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
 707 {
 708         struct rw_data s_data;
 709
 710         s_data.len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
 711         s_data.filename = fsp->fsp_name->base_name;
 712         DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n",
 713                    fsp_str_dbg(fsp)));
 714
 715         smb_traffic_analyzer_send_data(handle,
 716                         &s_data,
 717                         vfs_id_pread);
 718
 719         return s_data.len;
 720 }
 721
 722 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
 723                         files_struct *fsp, const void *data, size_t n)
 724 {
 725         struct rw_data s_data;
 726
 727         s_data.len = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
 728         s_data.filename = fsp->fsp_name->base_name;
 729         DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n",
 730                    fsp_str_dbg(fsp)));
 731
 732         smb_traffic_analyzer_send_data(handle,
 733                         &s_data,
 734                         vfs_id_write);
 735         return s_data.len;
 736 }
 737
 738 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
 739              files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
 740 {
 741         struct rw_data s_data;
 742
 743         s_data.len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
 744         s_data.filename = fsp->fsp_name->base_name;
 745         DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", \
 746                 fsp_str_dbg(fsp)));
 747
 748         smb_traffic_analyzer_send_data(handle,
 749                         &s_data,
 750                         vfs_id_pwrite);
 751         return s_data.len;
 752 }
 753
 754 static struct vfs_fn_pointers vfs_smb_traffic_analyzer_fns = {
 755         .connect_fn = smb_traffic_analyzer_connect,
 756         .vfs_read = smb_traffic_analyzer_read,
 757         .pread = smb_traffic_analyzer_pread,
 758         .write = smb_traffic_analyzer_write,
 759         .pwrite = smb_traffic_analyzer_pwrite,
 760         .mkdir = smb_traffic_analyzer_mkdir,
 761         .rename = smb_traffic_analyzer_rename,
 762         .chdir = smb_traffic_analyzer_chdir
 763 };
 764
 765 /* Module initialization */
 766 NTSTATUS vfs_smb_traffic_analyzer_init(void)
 767 {
 768         NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
 769                                         "smb_traffic_analyzer",
 770                                         &vfs_smb_traffic_analyzer_fns);
 771
 772         if (!NT_STATUS_IS_OK(ret)) {
 773                 return ret;
 774         }
 775
 776         vfs_smb_traffic_analyzer_debug_level =
 777                 debug_add_class("smb_traffic_analyzer");
 778
 779         if (vfs_smb_traffic_analyzer_debug_level == -1) {
 780                 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
 781                 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
 782                          "debugging class!\n"));
 783         } else {
 784                 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
 785                         "'smb_traffic_analyzer': %d\n", \
 786                         vfs_smb_traffic_analyzer_debug_level));
 787         }
 788
 789         return ret;
 790 }