2 * traffic-analyzer VFS module. Measure the smb traffic users create
5 * Copyright (C) Holger Hetterich, 2008-2010
6 * Copyright (C) Jeremy Allison, 2008
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.
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.
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/>.
23 #include "../lib/crypto/crypto.h"
24 #include "vfs_smb_traffic_analyzer.h"
26 /* abstraction for the send_over_network function */
27 enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
29 #define LOCAL_PATHNAME "/var/tmp/stadsocket"
31 static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
33 static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
35 connection_struct *conn = handle->conn;
37 Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
39 if (strstr(Mode,"unix_domain_socket")) {
40 return UNIX_DOMAIN_SOCKET;
42 return INTERNET_SOCKET;
47 /* Connect to an internet socket */
48 static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
49 const char *name, uint16_t port)
51 /* Create a streaming Socket */
53 struct addrinfo hints;
54 struct addrinfo *ailist = NULL;
55 struct addrinfo *res = NULL;
59 /* By default make sure it supports TCP. */
60 hints.ai_socktype = SOCK_STREAM;
61 hints.ai_flags = AI_ADDRCONFIG;
63 ret = getaddrinfo(name,
69 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
70 "getaddrinfo failed for name %s [%s]\n",
76 DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
77 "Port: %i\n", name, port));
79 for (res = ailist; res; res = res->ai_next) {
80 struct sockaddr_storage ss;
83 if (!res->ai_addr || res->ai_addrlen == 0) {
88 memcpy(&ss, res->ai_addr, res->ai_addrlen);
90 status = open_socket_out(&ss, port, 10000, &sockfd);
91 if (NT_STATUS_IS_OK(status)) {
101 DEBUG(1, ("smb_traffic_analyzer: unable to create "
102 "socket, error is %s",
110 /* Connect to a unix domain socket */
111 static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
114 /* Create the socket to stad */
116 struct sockaddr_un remote;
118 DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
119 "Unix domain socket mode. Using %s\n",
122 if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
123 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
124 "Couldn't create socket, "
125 "make sure stad is running!\n"));
128 remote.sun_family = AF_UNIX;
129 strlcpy(remote.sun_path, name,
130 sizeof(remote.sun_path));
131 len=strlen(remote.sun_path) + sizeof(remote.sun_family);
132 if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
133 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
134 "Could not connect to "
135 "socket, make sure\nstad is running!\n"));
142 /* Private data allowing shared connection sockets. */
143 struct refcounted_sock {
144 struct refcounted_sock *next, *prev;
148 unsigned int ref_count;
153 * Encryption of a data block with AES
154 * TALLOC_CTX *ctx Talloc context to work on
155 * const char *akey 128bit key for the encryption
156 * const char *str Data buffer to encrypt, \0 terminated
157 * int *len Will be set to the length of the
158 * resulting data block
159 * The caller has to take care for the memory
160 * allocated on the context.
162 static char *smb_traffic_analyzer_encrypt( TALLOC_CTX *ctx,
163 const char *akey, const char *str, size_t *len)
167 char filler[17]= "................";
170 if (akey == NULL) return NULL;
171 samba_AES_set_encrypt_key(akey, 128, &key);
172 s1 = strlen(str) / 16;
173 s2 = strlen(str) % 16;
174 for (h = 0; h < s2; h++) *(filler+h)=*(str+(s1*16)+h);
175 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created %s"
176 " as filling block.\n", filler));
177 output = talloc_array(ctx, char, (s1*16)+17 );
179 for (h = 0; h < s1; h++) {
180 samba_AES_encrypt(str+(16*h), crypted, &key);
181 for (d = 0; d<16; d++) output[d+(16*h)]=crypted[d];
183 samba_AES_encrypt( str+(16*h), filler, &key );
184 for (d = 0;d < 16; d++) output[d+(16*h)]=*(filler+d);
190 * Create a v2 header.
191 * TALLLOC_CTX *ctx Talloc context to work on
192 * const char *state_flags State flag string
193 * int len length of the data block
195 static char *smb_traffic_analyzer_create_header( TALLOC_CTX *ctx,
196 const char *state_flags, size_t data_len)
198 char *header = talloc_asprintf( ctx, "V2.%s%017u",
199 state_flags, data_len);
200 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created Header:\n"));
201 dump_data(10, (uint8_t *)header, strlen(header));
207 * Actually send header and data over the network
208 * char *header Header data
209 * char *data Data Block
210 * int dlength Length of data block
213 static void smb_traffic_analyzer_write_data( char *header, char *data,
214 int dlength, int _socket)
216 int len = strlen(header);
217 if (write_data( _socket, header, len) != len) {
218 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
219 "error sending the header"
220 " over the socket!\n"));
222 DEBUG(10,("smb_traffic_analyzer_write_data: sending data:\n"));
223 dump_data( 10, (uint8_t *)data, dlength);
225 if (write_data( _socket, data, dlength) != dlength) {
226 DEBUG(1, ("smb_traffic_analyzer_write_data: "
227 "error sending crypted data to socket!\n"));
233 * Anonymize a string if required.
234 * TALLOC_CTX *ctx The talloc context to work on
235 * const char *str The string to anonymize
236 * vfs_handle_struct *handle The handle struct to work on
238 * Returns a newly allocated string, either the anonymized one,
239 * or a copy of const char *str. The caller has to take care for
240 * freeing the allocated memory.
242 static char *smb_traffic_analyzer_anonymize( TALLOC_CTX *ctx,
244 vfs_handle_struct *handle )
246 const char *total_anonymization;
247 const char *anon_prefix;
249 total_anonymization=lp_parm_const_string(SNUM(handle->conn),
250 "smb_traffic_analyzer",
251 "total_anonymization", NULL);
253 anon_prefix=lp_parm_const_string(SNUM(handle->conn),
254 "smb_traffic_analyzer",
255 "anonymize_prefix", NULL );
256 if (anon_prefix != NULL) {
257 if (total_anonymization != NULL) {
258 output = talloc_asprintf(ctx, "%s",
261 output = talloc_asprintf(ctx, "%s%i", anon_prefix,
265 output = talloc_asprintf(ctx, "%s", str);
273 * The marshalling function for protocol v2.
274 * TALLOC_CTX *ctx Talloc context to work on
275 * struct tm *tm tm struct for the timestamp
276 * int seconds milliseconds of the timestamp
277 * vfs_handle_struct *handle vfs_handle_struct
278 * char *username Name of the user
279 * int vfs_operation VFS operation identifier
280 * int count Number of the common data blocks
281 * [...] variable args data blocks taken from the individual
282 * VFS data structures
284 * Returns the complete data block to send. The caller has to
285 * take care for freeing the allocated buffer.
287 static char *smb_traffic_analyzer_create_string( TALLOC_CTX *ctx,
288 struct tm *tm, int seconds, vfs_handle_struct *handle, \
289 char *username, int vfs_operation, int count, ... )
295 char *common_data_count_str = NULL;
296 char *timestr = NULL;
298 char *usersid = NULL;
300 char *vfs_operation_str = NULL;
302 * first create the data that is transfered with any VFS op
303 * These are, in the following order:
304 *(0) number of data to come [6 in v2.0]
305 * 1.vfs_operation identifier
314 * number of common data blocks to come,
315 * this is a #define in vfs_smb_traffic_anaylzer.h,
316 * it's length is known at compile time
318 common_data_count_str = talloc_strdup( ctx, SMBTA_COMMON_DATA_COUNT);
319 /* vfs operation identifier */
320 vfs_operation_str = talloc_asprintf( common_data_count_str, "%i",
323 * Handle anonymization. In protocol v2, we have to anonymize
324 * both the SID and the username. The name is already
325 * anonymized if needed, by the calling function.
327 usersid = dom_sid_string( common_data_count_str,
328 &handle->conn->server_info->ptok->user_sids[0]);
330 sidstr = smb_traffic_analyzer_anonymize(
331 common_data_count_str,
336 timestr = talloc_asprintf( common_data_count_str, \
337 "%04d-%02d-%02d %02d:%02d:%02d.%03d", \
345 len = strlen( timestr );
346 /* create the string of common data */
347 buf = talloc_asprintf(ctx,
348 "%s%04u%s%04u%s%04u%s%04u%s%04u%s%04u%s",
349 common_data_count_str,
350 strlen(vfs_operation_str),
356 strlen(handle->conn->connectpath),
357 handle->conn->connectpath,
358 strlen(pdb_get_domain(handle->conn->server_info->sam_account)),
359 pdb_get_domain(handle->conn->server_info->sam_account),
363 talloc_free(common_data_count_str);
365 /* data blocks depending on the VFS function */
366 va_start( ap, count );
368 arg = va_arg( ap, char * );
370 * protocol v2 sends a four byte string
371 * as a header to each block, including
372 * the numbers of bytes to come in the
376 buf = talloc_asprintf_append( buf, "%04u%s", len, arg);
382 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
384 enum vfs_id vfs_operation )
386 struct refcounted_sock *rf_sock = NULL;
389 struct tm *tm = NULL;
392 char *username = NULL;
394 const char *protocol_version = NULL;
401 * The state flags are part of the header
402 * and are descripted in the protocol description
403 * in vfs_smb_traffic_analyzer.h. They begin at byte
406 char state_flags[9] = "000000\0";
408 SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
410 if (rf_sock == NULL || rf_sock->sock == -1) {
411 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
417 tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
418 tm = localtime(&tv_sec);
422 seconds=(float) (tv.tv_usec / 1000);
425 * Check if anonymization is required, and if yes do this only for
426 * the username here, needed vor protocol version 1. In v2 we
427 * additionally anonymize the SID, which is done in it's marshalling
430 username = smb_traffic_analyzer_anonymize( talloc_tos(),
431 handle->conn->server_info->sanitized_username,
438 protocol_version = lp_parm_const_string(SNUM(handle->conn),
439 "smb_traffic_analyzer",
440 "protocol_version", NULL );
443 if ( protocol_version == NULL || strcmp( protocol_version,"V1") == 0) {
445 struct rw_data *s_data = (struct rw_data *) data;
448 * in case of protocol v1, ignore any vfs operations
449 * except read,pread,write,pwrite, and set the "Write"
450 * bool accordingly, send data and return.
452 if ( vfs_operation > vfs_id_pwrite ) return;
454 if ( vfs_operation <= vfs_id_pread ) Write=false;
457 str = talloc_asprintf(talloc_tos(),
458 "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
459 "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
460 (unsigned int) s_data->len,
462 pdb_get_domain(handle->conn->server_info->sam_account),
464 handle->conn->connectpath,
473 if (write_data(rf_sock->sock, str, len) != len) {
474 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
475 "error sending V1 protocol data to socket!\n"));
479 } else if ( strcmp( protocol_version, "V2") == 0) {
481 switch( vfs_operation ) {
483 str = smb_traffic_analyzer_create_string( talloc_tos(),
484 tm, seconds, handle, username, vfs_id_open,
485 3, ((struct open_data *) data)->filename,
486 talloc_asprintf( talloc_tos(), "%u",
487 ((struct open_data *) data)->mode),
488 talloc_asprintf( talloc_tos(), "%u",
489 ((struct open_data *) data)->result));
492 str = smb_traffic_analyzer_create_string( talloc_tos(),
493 tm, seconds, handle, username, vfs_id_close,
494 2, ((struct close_data *) data)->filename,
495 talloc_asprintf( talloc_tos(), "%u",
496 ((struct close_data *) data)->result));
499 str = smb_traffic_analyzer_create_string( talloc_tos(),
500 tm, seconds, handle, username, vfs_id_mkdir, \
501 3, ((struct mkdir_data *) data)->path, \
502 talloc_asprintf( talloc_tos(), "%u", \
503 ((struct mkdir_data *) data)->mode), \
504 talloc_asprintf( talloc_tos(), "%u", \
505 ((struct mkdir_data *) data)->result ));
508 str = smb_traffic_analyzer_create_string( talloc_tos(),
509 tm, seconds, handle, username, vfs_id_rmdir,
510 2, ((struct rmdir_data *) data)->path, \
511 talloc_asprintf( talloc_tos(), "%u", \
512 ((struct rmdir_data *) data)->result ));
514 case vfs_id_rename: ;
515 str = smb_traffic_analyzer_create_string( talloc_tos(),
516 tm, seconds, handle, username, vfs_id_rename,
517 3, ((struct rename_data *) data)->src, \
518 ((struct rename_data *) data)->dst,
519 talloc_asprintf(talloc_tos(), "%u", \
520 ((struct rename_data *) data)->result));
523 str = smb_traffic_analyzer_create_string( talloc_tos(),
524 tm, seconds, handle, username, vfs_id_chdir,
525 2, ((struct chdir_data *) data)->path, \
526 talloc_asprintf(talloc_tos(), "%u", \
527 ((struct chdir_data *) data)->result));
534 str = smb_traffic_analyzer_create_string( talloc_tos(),
535 tm, seconds, handle, username, vfs_operation,
536 2, ((struct rw_data *) data)->filename, \
537 talloc_asprintf(talloc_tos(), "%u", \
538 ((struct rw_data *) data)->len));
541 DEBUG(1, ("smb_traffic_analyzer: error! "
542 "wrong VFS operation id detected!\n"));
547 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
548 "error, unkown protocol given!\n"));
553 DEBUG(1, ("smb_traffic_analyzer_send_data: "
554 "unable to create string to send!\n"));
560 * If configured, optain the key and run AES encryption
564 akey = (char *) secrets_fetch("smb_traffic_analyzer_key", &size);
566 if ( akey != NULL ) {
567 state_flags[2] = 'E';
568 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: a key was"
569 " found, encrypting data!\n"));
570 output = smb_traffic_analyzer_encrypt( talloc_tos(),
572 header = smb_traffic_analyzer_create_header( talloc_tos(),
575 DEBUG(10, ("smb_traffic_analyzer_send_data_socket:"
576 " header created for crypted data: %s\n", header));
577 smb_traffic_analyzer_write_data(header, output, len,
584 header = smb_traffic_analyzer_create_header( talloc_tos(),
586 smb_traffic_analyzer_write_data(header, str, strlen(str),
591 static struct refcounted_sock *sock_list;
593 static void smb_traffic_analyzer_free_data(void **pptr)
595 struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
596 if (rf_sock == NULL) {
599 rf_sock->ref_count--;
600 if (rf_sock->ref_count != 0) {
603 if (rf_sock->sock != -1) {
604 close(rf_sock->sock);
606 DLIST_REMOVE(sock_list, rf_sock);
607 TALLOC_FREE(rf_sock);
610 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
614 connection_struct *conn = handle->conn;
615 enum sock_type st = smb_traffic_analyzer_connMode(handle);
616 struct refcounted_sock *rf_sock = NULL;
617 const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
618 lp_parm_const_string(SNUM(conn),
619 "smb_traffic_analyzer",
620 "host", "localhost");
621 uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
622 atoi( lp_parm_const_string(SNUM(conn),
623 "smb_traffic_analyzer", "port", "9430"));
624 int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
630 /* Are we already connected ? */
631 for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
632 if (port == rf_sock->port &&
633 (strcmp(name, rf_sock->name) == 0)) {
638 /* If we're connected already, just increase the
639 * reference count. */
641 rf_sock->ref_count++;
643 /* New connection. */
644 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
645 if (rf_sock == NULL) {
646 SMB_VFS_NEXT_DISCONNECT(handle);
650 rf_sock->name = talloc_strdup(rf_sock, name);
651 if (rf_sock->name == NULL) {
652 SMB_VFS_NEXT_DISCONNECT(handle);
653 TALLOC_FREE(rf_sock);
657 rf_sock->port = port;
658 rf_sock->ref_count = 1;
660 if (st == UNIX_DOMAIN_SOCKET) {
661 rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
665 rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
669 if (rf_sock->sock == -1) {
670 SMB_VFS_NEXT_DISCONNECT(handle);
671 TALLOC_FREE(rf_sock);
674 DLIST_ADD(sock_list, rf_sock);
677 /* Store the private data. */
678 SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
679 struct refcounted_sock, return -1);
684 static int smb_traffic_analyzer_chdir(vfs_handle_struct *handle, \
687 struct chdir_data s_data;
688 s_data.result = SMB_VFS_NEXT_CHDIR(handle, path);
690 DEBUG(10, ("smb_traffic_analyzer_chdir: CHDIR: %s\n", path));
691 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_chdir);
692 return s_data.result;
695 static int smb_traffic_analyzer_rename(vfs_handle_struct *handle, \
696 const struct smb_filename *smb_fname_src,
697 const struct smb_filename *smb_fname_dst)
699 struct rename_data s_data;
700 s_data.result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, \
702 s_data.src = smb_fname_src->base_name;
703 s_data.dst = smb_fname_dst->base_name;
704 DEBUG(10, ("smb_traffic_analyzer_rename: RENAME: %s / %s\n",
705 smb_fname_src->base_name,
706 smb_fname_dst->base_name));
707 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rename);
708 return s_data.result;
712 static int smb_traffic_analyzer_rmdir(vfs_handle_struct *handle, \
715 struct rmdir_data s_data;
716 s_data.result = SMB_VFS_NEXT_RMDIR(handle, path);
718 DEBUG(10, ("smb_traffic_analyzer_rmdir: RMDIR: %s\n", path));
719 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rmdir);
720 return s_data.result;
724 static int smb_traffic_analyzer_mkdir(vfs_handle_struct *handle, \
725 const char *path, mode_t mode)
727 struct mkdir_data s_data;
728 s_data.result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
731 DEBUG(10, ("smb_traffic_analyzer_mkdir: MKDIR: %s\n", path));
732 smb_traffic_analyzer_send_data(handle,
735 return s_data.result;
738 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
739 files_struct *fsp, void *data, size_t n)
741 struct rw_data s_data;
743 s_data.len = SMB_VFS_NEXT_READ(handle, fsp, data, n);
744 s_data.filename = fsp->fsp_name->base_name;
745 DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp_str_dbg(fsp)));
747 smb_traffic_analyzer_send_data(handle,
754 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
755 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
757 struct rw_data s_data;
759 s_data.len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
760 s_data.filename = fsp->fsp_name->base_name;
761 DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n",
764 smb_traffic_analyzer_send_data(handle,
771 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
772 files_struct *fsp, const void *data, size_t n)
774 struct rw_data s_data;
776 s_data.len = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
777 s_data.filename = fsp->fsp_name->base_name;
778 DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n",
781 smb_traffic_analyzer_send_data(handle,
787 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
788 files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
790 struct rw_data s_data;
792 s_data.len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
793 s_data.filename = fsp->fsp_name->base_name;
794 DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", \
797 smb_traffic_analyzer_send_data(handle,
803 static int smb_traffic_analyzer_open(vfs_handle_struct *handle, \
804 struct smb_filename *smb_fname, files_struct *fsp,\
805 int flags, mode_t mode)
807 struct open_data s_data;
809 s_data.result = SMB_VFS_NEXT_OPEN( handle, smb_fname, fsp,
811 DEBUG(10,("smb_traffic_analyzer_open: OPEN: %s\n",
813 s_data.filename = fsp->fsp_name->base_name;
814 smb_traffic_analyzer_send_data(handle,
817 return s_data.result;
820 static int smb_traffic_analyzer_close(vfs_handle_struct *handle, \
823 struct close_data s_data;
824 s_data.result = SMB_VFS_NEXT_CLOSE(handle, fsp);
825 DEBUG(10,("smb_traffic_analyzer_close: CLOSE: %s\n",
827 s_data.filename = fsp->fsp_name->base_name;
828 smb_traffic_analyzer_send_data(handle,
831 return s_data.result;
835 static struct vfs_fn_pointers vfs_smb_traffic_analyzer_fns = {
836 .connect_fn = smb_traffic_analyzer_connect,
837 .vfs_read = smb_traffic_analyzer_read,
838 .pread = smb_traffic_analyzer_pread,
839 .write = smb_traffic_analyzer_write,
840 .pwrite = smb_traffic_analyzer_pwrite,
841 .mkdir = smb_traffic_analyzer_mkdir,
842 .rename = smb_traffic_analyzer_rename,
843 .chdir = smb_traffic_analyzer_chdir,
844 .open = smb_traffic_analyzer_open,
845 .close_fn = smb_traffic_analyzer_close
848 /* Module initialization */
849 NTSTATUS vfs_smb_traffic_analyzer_init(void)
851 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
852 "smb_traffic_analyzer",
853 &vfs_smb_traffic_analyzer_fns);
855 if (!NT_STATUS_IS_OK(ret)) {
859 vfs_smb_traffic_analyzer_debug_level =
860 debug_add_class("smb_traffic_analyzer");
862 if (vfs_smb_traffic_analyzer_debug_level == -1) {
863 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
864 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
865 "debugging class!\n"));
867 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
868 "'smb_traffic_analyzer': %d\n", \
869 vfs_smb_traffic_analyzer_debug_level));