source: trunk/server/source3/modules/vfs_smb_traffic_analyzer.c@ 920

Last change on this file since 920 was 751, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated trunk to 3.6.9
File size: 26.6 KB
Line 
1/*
2 * traffic-analyzer VFS module. Measure the smb traffic users create
3 * on the net.
4 *
5 * Copyright (C) Holger Hetterich, 2008-2010
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 "smbd/smbd.h"
24#include "../smbd/globals.h"
25#include "../lib/crypto/crypto.h"
26#include "vfs_smb_traffic_analyzer.h"
27#include "../libcli/security/security.h"
28#include "secrets.h"
29#include "../librpc/gen_ndr/ndr_netlogon.h"
30#include "auth.h"
31
32/* abstraction for the send_over_network function */
33enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
34
35#define LOCAL_PATHNAME "/var/tmp/stadsocket"
36
37static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
38
39static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
40{
41 connection_struct *conn = handle->conn;
42 const char *Mode;
43 Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
44 "internet_socket");
45 if (strstr(Mode,"unix_domain_socket")) {
46 return UNIX_DOMAIN_SOCKET;
47 } else {
48 return INTERNET_SOCKET;
49 }
50}
51
52
53/* Connect to an internet socket */
54static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
55 const char *name, uint16_t port)
56{
57 /* Create a streaming Socket */
58 int sockfd = -1;
59 struct addrinfo hints;
60 struct addrinfo *ailist = NULL;
61 struct addrinfo *res = NULL;
62 int ret;
63
64 ZERO_STRUCT(hints);
65 /* By default make sure it supports TCP. */
66 hints.ai_socktype = SOCK_STREAM;
67 hints.ai_flags = AI_ADDRCONFIG;
68
69 ret = getaddrinfo(name,
70 NULL,
71 &hints,
72 &ailist);
73
74 if (ret) {
75 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
76 "getaddrinfo failed for name %s [%s]\n",
77 name,
78 gai_strerror(ret) ));
79 return -1;
80 }
81
82 DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
83 "Port: %i\n", name, port));
84
85 for (res = ailist; res; res = res->ai_next) {
86 struct sockaddr_storage ss;
87 NTSTATUS status;
88
89 if (!res->ai_addr || res->ai_addrlen == 0) {
90 continue;
91 }
92
93 ZERO_STRUCT(ss);
94 memcpy(&ss, res->ai_addr, res->ai_addrlen);
95
96 status = open_socket_out(&ss, port, 10000, &sockfd);
97 if (NT_STATUS_IS_OK(status)) {
98 break;
99 }
100 }
101
102 if (ailist) {
103 freeaddrinfo(ailist);
104 }
105
106 if (sockfd == -1) {
107 DEBUG(1, ("smb_traffic_analyzer: unable to create "
108 "socket, error is %s",
109 strerror(errno)));
110 return -1;
111 }
112
113 return sockfd;
114}
115
116/* Connect to a unix domain socket */
117static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
118 const char *name)
119{
120 /* Create the socket to stad */
121 int len, sock;
122 struct sockaddr_un remote;
123
124 DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
125 "Unix domain socket mode. Using %s\n",
126 name ));
127
128 if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
129 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
130 "Couldn't create socket, "
131 "make sure stad is running!\n"));
132 return -1;
133 }
134 remote.sun_family = AF_UNIX;
135 strlcpy(remote.sun_path, name,
136 sizeof(remote.sun_path));
137 len=strlen(remote.sun_path) + sizeof(remote.sun_family);
138 if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
139 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
140 "Could not connect to "
141 "socket, make sure\nstad is running!\n"));
142 close(sock);
143 return -1;
144 }
145 return sock;
146}
147
148/* Private data allowing shared connection sockets. */
149struct refcounted_sock {
150 struct refcounted_sock *next, *prev;
151 char *name;
152 uint16_t port;
153 int sock;
154 unsigned int ref_count;
155};
156
157
158/**
159 * Encryption of a data block with AES
160 * TALLOC_CTX *ctx Talloc context to work on
161 * const char *akey 128bit key for the encryption
162 * const char *str Data buffer to encrypt, \0 terminated
163 * int *len Will be set to the length of the
164 * resulting data block
165 * The caller has to take care for the memory
166 * allocated on the context.
167 */
168static char *smb_traffic_analyzer_encrypt( TALLOC_CTX *ctx,
169 const char *akey, const char *str, size_t *len)
170{
171 int s1,s2,h;
172 AES_KEY key;
173 unsigned char filler[17]= "................";
174 char *output;
175 if (akey == NULL) return NULL;
176 samba_AES_set_encrypt_key((unsigned char *) akey, 128, &key);
177 s1 = strlen(str) / 16;
178 s2 = strlen(str) % 16;
179 memcpy(filler, str + (s1*16), s2);
180 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created %s"
181 " as filling block.\n", filler));
182
183 *len = ((s1 + 1)*16);
184 output = talloc_array(ctx, char, *len);
185 for (h = 0; h < s1; h++) {
186 samba_AES_encrypt((unsigned char *) str+(16*h), output+16*h,
187&key);
188 }
189 samba_AES_encrypt(filler, (unsigned char *)(output+(16*h)), &key);
190 *len = (s1*16)+16;
191 return output;
192}
193
194/**
195 * Create a v2 header.
196 * TALLLOC_CTX *ctx Talloc context to work on
197 * const char *state_flags State flag string
198 * int len length of the data block
199 */
200static char *smb_traffic_analyzer_create_header( TALLOC_CTX *ctx,
201 const char *state_flags, size_t data_len)
202{
203 char *header = talloc_asprintf( ctx, "V2.%s%017u",
204 state_flags, (unsigned int) data_len);
205 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created Header:\n"));
206 dump_data(10, (uint8_t *)header, strlen(header));
207 return header;
208}
209
210
211/**
212 * Actually send header and data over the network
213 * char *header Header data
214 * char *data Data Block
215 * int dlength Length of data block
216 * int socket
217 */
218static void smb_traffic_analyzer_write_data( char *header, char *data,
219 int dlength, int _socket)
220{
221 int len = strlen(header);
222 if (write_data( _socket, header, len) != len) {
223 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
224 "error sending the header"
225 " over the socket!\n"));
226 }
227 DEBUG(10,("smb_traffic_analyzer_write_data: sending data:\n"));
228 dump_data( 10, (uint8_t *)data, dlength);
229
230 if (write_data( _socket, data, dlength) != dlength) {
231 DEBUG(1, ("smb_traffic_analyzer_write_data: "
232 "error sending crypted data to socket!\n"));
233 }
234}
235
236
237/*
238 * Anonymize a string if required.
239 * TALLOC_CTX *ctx The talloc context to work on
240 * const char *str The string to anonymize
241 * vfs_handle_struct *handle The handle struct to work on
242 *
243 * Returns a newly allocated string, either the anonymized one,
244 * or a copy of const char *str. The caller has to take care for
245 * freeing the allocated memory.
246 */
247static char *smb_traffic_analyzer_anonymize( TALLOC_CTX *ctx,
248 const char *str,
249 vfs_handle_struct *handle )
250{
251 const char *total_anonymization;
252 const char *anon_prefix;
253 char *output;
254 total_anonymization=lp_parm_const_string(SNUM(handle->conn),
255 "smb_traffic_analyzer",
256 "total_anonymization", NULL);
257
258 anon_prefix=lp_parm_const_string(SNUM(handle->conn),
259 "smb_traffic_analyzer",
260 "anonymize_prefix", NULL );
261 if (anon_prefix != NULL) {
262 if (total_anonymization != NULL) {
263 output = talloc_asprintf(ctx, "%s",
264 anon_prefix);
265 } else {
266 output = talloc_asprintf(ctx, "%s%i", anon_prefix,
267 str_checksum(str));
268 }
269 } else {
270 output = talloc_asprintf(ctx, "%s", str);
271 }
272
273 return output;
274}
275
276
277/**
278 * The marshalling function for protocol v2.
279 * TALLOC_CTX *ctx Talloc context to work on
280 * struct tm *tm tm struct for the timestamp
281 * int seconds milliseconds of the timestamp
282 * vfs_handle_struct *handle vfs_handle_struct
283 * char *username Name of the user
284 * int vfs_operation VFS operation identifier
285 * int count Number of the common data blocks
286 * [...] variable args data blocks taken from the individual
287 * VFS data structures
288 *
289 * Returns the complete data block to send. The caller has to
290 * take care for freeing the allocated buffer.
291 */
292static char *smb_traffic_analyzer_create_string( TALLOC_CTX *ctx,
293 struct tm *tm, int seconds, vfs_handle_struct *handle, \
294 char *username, int vfs_operation, int count, ... )
295{
296
297 va_list ap;
298 char *arg = NULL;
299 int len;
300 char *common_data_count_str = NULL;
301 char *timestr = NULL;
302 char *sidstr = NULL;
303 char *usersid = NULL;
304 char *buf = NULL;
305 char *vfs_operation_str = NULL;
306 const char *service_name = lp_const_servicename(handle->conn->params->service);
307
308 /*
309 * first create the data that is transfered with any VFS op
310 * These are, in the following order:
311 *(0) number of data to come [6 in v2.0]
312 * 1.vfs_operation identifier
313 * 2.username
314 * 3.user-SID
315 * 4.affected share
316 * 5.domain
317 * 6.timestamp
318 * 7.IP Addresss of client
319 */
320
321 /*
322 * number of common data blocks to come,
323 * this is a #define in vfs_smb_traffic_anaylzer.h,
324 * it's length is known at compile time
325 */
326 common_data_count_str = talloc_strdup( ctx, SMBTA_COMMON_DATA_COUNT);
327 /* vfs operation identifier */
328 vfs_operation_str = talloc_asprintf( common_data_count_str, "%i",
329 vfs_operation);
330 /*
331 * Handle anonymization. In protocol v2, we have to anonymize
332 * both the SID and the username. The name is already
333 * anonymized if needed, by the calling function.
334 */
335 usersid = dom_sid_string( common_data_count_str,
336 &handle->conn->session_info->security_token->sids[0]);
337
338 sidstr = smb_traffic_analyzer_anonymize(
339 common_data_count_str,
340 usersid,
341 handle);
342
343 /* time stamp */
344 timestr = talloc_asprintf( common_data_count_str, \
345 "%04d-%02d-%02d %02d:%02d:%02d.%03d", \
346 tm->tm_year+1900, \
347 tm->tm_mon+1, \
348 tm->tm_mday, \
349 tm->tm_hour, \
350 tm->tm_min, \
351 tm->tm_sec, \
352 (int)seconds);
353 len = strlen( timestr );
354 /* create the string of common data */
355 buf = talloc_asprintf(ctx,
356 "%s%04u%s%04u%s%04u%s%04u%s%04u%s%04u%s%04u%s",
357 common_data_count_str,
358 (unsigned int) strlen(vfs_operation_str),
359 vfs_operation_str,
360 (unsigned int) strlen(username),
361 username,
362 (unsigned int) strlen(sidstr),
363 sidstr,
364 (unsigned int) strlen(service_name),
365 service_name,
366 (unsigned int)
367 strlen(handle->conn->session_info->info3->base.domain.string),
368 handle->conn->session_info->info3->base.domain.string,
369 (unsigned int) strlen(timestr),
370 timestr,
371 (unsigned int) strlen(handle->conn->sconn->client_id.addr),
372 handle->conn->sconn->client_id.addr);
373
374 talloc_free(common_data_count_str);
375
376 /* data blocks depending on the VFS function */
377 va_start( ap, count );
378 while ( count-- ) {
379 arg = va_arg( ap, char * );
380 /*
381 * protocol v2 sends a four byte string
382 * as a header to each block, including
383 * the numbers of bytes to come in the
384 * next string.
385 */
386 len = strlen( arg );
387 buf = talloc_asprintf_append( buf, "%04u%s", len, arg);
388 }
389 va_end( ap );
390 return buf;
391}
392
393static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
394 void *data,
395 enum vfs_id vfs_operation )
396{
397 struct refcounted_sock *rf_sock = NULL;
398 struct timeval tv;
399 time_t tv_sec;
400 struct tm *tm = NULL;
401 int seconds;
402 char *str = NULL;
403 char *username = NULL;
404 char *header = NULL;
405 const char *protocol_version = NULL;
406 bool Write = false;
407 size_t len;
408 size_t size;
409 char *akey, *output;
410
411 /*
412 * The state flags are part of the header
413 * and are descripted in the protocol description
414 * in vfs_smb_traffic_analyzer.h. They begin at byte
415 * 03 of the header.
416 */
417 char state_flags[9] = "000000\0";
418
419 /**
420 * The first byte of the state flag string represents
421 * the modules protocol subversion number, defined
422 * in smb_traffic_analyzer.h. smbtatools/smbtad are designed
423 * to handle not yet implemented protocol enhancements
424 * by ignoring them. By recognizing the SMBTA_SUBRELEASE
425 * smbtatools can tell the user to update the client
426 * software.
427 */
428 state_flags[0] = SMBTA_SUBRELEASE;
429
430 SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
431
432 if (rf_sock == NULL || rf_sock->sock == -1) {
433 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
434 "closed\n"));
435 return;
436 }
437
438 GetTimeOfDay(&tv);
439 tv_sec = tv.tv_sec;
440 tm = localtime(&tv_sec);
441 if (!tm) {
442 return;
443 }
444 seconds=(float) (tv.tv_usec / 1000);
445
446 /*
447 * Check if anonymization is required, and if yes do this only for
448 * the username here, needed vor protocol version 1. In v2 we
449 * additionally anonymize the SID, which is done in it's marshalling
450 * function.
451 */
452 username = smb_traffic_analyzer_anonymize( talloc_tos(),
453 handle->conn->session_info->sanitized_username,
454 handle);
455
456 if (!username) {
457 return;
458 }
459
460 protocol_version = lp_parm_const_string(SNUM(handle->conn),
461 "smb_traffic_analyzer",
462 "protocol_version", NULL );
463
464
465 if (protocol_version != NULL && strcmp(protocol_version,"V1") == 0) {
466
467 struct rw_data *s_data = (struct rw_data *) data;
468
469 /*
470 * in case of protocol v1, ignore any vfs operations
471 * except read,pread,write,pwrite, and set the "Write"
472 * bool accordingly, send data and return.
473 */
474 if ( vfs_operation > vfs_id_pwrite ) return;
475
476 if ( vfs_operation <= vfs_id_pread ) Write=false;
477 else Write=true;
478
479 str = talloc_asprintf(talloc_tos(),
480 "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
481 "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
482 (unsigned int) s_data->len,
483 username,
484 handle->conn->session_info->info3->base.domain.string,
485 Write ? 'W' : 'R',
486 handle->conn->connectpath,
487 s_data->filename,
488 tm->tm_year+1900,
489 tm->tm_mon+1,
490 tm->tm_mday,
491 tm->tm_hour,
492 tm->tm_min,
493 tm->tm_sec,
494 (int)seconds);
495 len = strlen(str);
496 if (write_data(rf_sock->sock, str, len) != len) {
497 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
498 "error sending V1 protocol data to socket!\n"));
499 return;
500 }
501
502 } else {
503 /**
504 * Protocol 2 is used by default.
505 */
506
507 switch( vfs_operation ) {
508 case vfs_id_open: ;
509 str = smb_traffic_analyzer_create_string( talloc_tos(),
510 tm, seconds, handle, username, vfs_id_open,
511 3, ((struct open_data *) data)->filename,
512 talloc_asprintf( talloc_tos(), "%u",
513 ((struct open_data *) data)->mode),
514 talloc_asprintf( talloc_tos(), "%u",
515 ((struct open_data *) data)->result));
516 break;
517 case vfs_id_close: ;
518 str = smb_traffic_analyzer_create_string( talloc_tos(),
519 tm, seconds, handle, username, vfs_id_close,
520 2, ((struct close_data *) data)->filename,
521 talloc_asprintf( talloc_tos(), "%u",
522 ((struct close_data *) data)->result));
523 break;
524 case vfs_id_mkdir: ;
525 str = smb_traffic_analyzer_create_string( talloc_tos(),
526 tm, seconds, handle, username, vfs_id_mkdir, \
527 3, ((struct mkdir_data *) data)->path, \
528 talloc_asprintf( talloc_tos(), "%u", \
529 ((struct mkdir_data *) data)->mode), \
530 talloc_asprintf( talloc_tos(), "%u", \
531 ((struct mkdir_data *) data)->result ));
532 break;
533 case vfs_id_rmdir: ;
534 str = smb_traffic_analyzer_create_string( talloc_tos(),
535 tm, seconds, handle, username, vfs_id_rmdir,
536 2, ((struct rmdir_data *) data)->path, \
537 talloc_asprintf( talloc_tos(), "%u", \
538 ((struct rmdir_data *) data)->result ));
539 break;
540 case vfs_id_rename: ;
541 str = smb_traffic_analyzer_create_string( talloc_tos(),
542 tm, seconds, handle, username, vfs_id_rename,
543 3, ((struct rename_data *) data)->src, \
544 ((struct rename_data *) data)->dst,
545 talloc_asprintf(talloc_tos(), "%u", \
546 ((struct rename_data *) data)->result));
547 break;
548 case vfs_id_chdir: ;
549 str = smb_traffic_analyzer_create_string( talloc_tos(),
550 tm, seconds, handle, username, vfs_id_chdir,
551 2, ((struct chdir_data *) data)->path, \
552 talloc_asprintf(talloc_tos(), "%u", \
553 ((struct chdir_data *) data)->result));
554 break;
555
556 case vfs_id_write:
557 case vfs_id_pwrite:
558 case vfs_id_read:
559 case vfs_id_pread: ;
560 str = smb_traffic_analyzer_create_string( talloc_tos(),
561 tm, seconds, handle, username, vfs_operation,
562 2, ((struct rw_data *) data)->filename, \
563 talloc_asprintf(talloc_tos(), "%u", \
564 (unsigned int)
565 ((struct rw_data *) data)->len));
566 break;
567 default:
568 DEBUG(1, ("smb_traffic_analyzer: error! "
569 "wrong VFS operation id detected!\n"));
570 return;
571 }
572
573 }
574
575 if (!str) {
576 DEBUG(1, ("smb_traffic_analyzer_send_data: "
577 "unable to create string to send!\n"));
578 return;
579 }
580
581
582 /*
583 * If configured, optain the key and run AES encryption
584 * over the data.
585 */
586 become_root();
587 akey = (char *) secrets_fetch("smb_traffic_analyzer_key", &size);
588 unbecome_root();
589 if ( akey != NULL ) {
590 state_flags[2] = 'E';
591 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: a key was"
592 " found, encrypting data!\n"));
593 output = smb_traffic_analyzer_encrypt( talloc_tos(),
594 akey, str, &len);
595 SAFE_FREE(akey);
596 header = smb_traffic_analyzer_create_header( talloc_tos(),
597 state_flags, len);
598
599 DEBUG(10, ("smb_traffic_analyzer_send_data_socket:"
600 " header created for crypted data: %s\n", header));
601 smb_traffic_analyzer_write_data(header, output, len,
602 rf_sock->sock);
603 return;
604
605 }
606
607 len = strlen(str);
608 header = smb_traffic_analyzer_create_header( talloc_tos(),
609 state_flags, len);
610 smb_traffic_analyzer_write_data(header, str, strlen(str),
611 rf_sock->sock);
612
613}
614
615static struct refcounted_sock *sock_list;
616
617static void smb_traffic_analyzer_free_data(void **pptr)
618{
619 struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
620 if (rf_sock == NULL) {
621 return;
622 }
623 rf_sock->ref_count--;
624 if (rf_sock->ref_count != 0) {
625 return;
626 }
627 if (rf_sock->sock != -1) {
628 close(rf_sock->sock);
629 }
630 DLIST_REMOVE(sock_list, rf_sock);
631 TALLOC_FREE(rf_sock);
632}
633
634static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
635 const char *service,
636 const char *user)
637{
638 connection_struct *conn = handle->conn;
639 enum sock_type st = smb_traffic_analyzer_connMode(handle);
640 struct refcounted_sock *rf_sock = NULL;
641 const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
642 lp_parm_const_string(SNUM(conn),
643 "smb_traffic_analyzer",
644 "host", "localhost");
645 uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
646 atoi( lp_parm_const_string(SNUM(conn),
647 "smb_traffic_analyzer", "port", "9430"));
648 int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
649
650 if (ret < 0) {
651 return ret;
652 }
653
654 /* Are we already connected ? */
655 for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
656 if (port == rf_sock->port &&
657 (strcmp(name, rf_sock->name) == 0)) {
658 break;
659 }
660 }
661
662 /* If we're connected already, just increase the
663 * reference count. */
664 if (rf_sock) {
665 rf_sock->ref_count++;
666 } else {
667 /* New connection. */
668 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
669 if (rf_sock == NULL) {
670 SMB_VFS_NEXT_DISCONNECT(handle);
671 errno = ENOMEM;
672 return -1;
673 }
674 rf_sock->name = talloc_strdup(rf_sock, name);
675 if (rf_sock->name == NULL) {
676 SMB_VFS_NEXT_DISCONNECT(handle);
677 TALLOC_FREE(rf_sock);
678 errno = ENOMEM;
679 return -1;
680 }
681 rf_sock->port = port;
682 rf_sock->ref_count = 1;
683
684 if (st == UNIX_DOMAIN_SOCKET) {
685 rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
686 name);
687 } else {
688
689 rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
690 name,
691 port);
692 }
693 if (rf_sock->sock == -1) {
694 SMB_VFS_NEXT_DISCONNECT(handle);
695 TALLOC_FREE(rf_sock);
696 return -1;
697 }
698 DLIST_ADD(sock_list, rf_sock);
699 }
700
701 /* Store the private data. */
702 SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
703 struct refcounted_sock, return -1);
704 return 0;
705}
706
707/* VFS Functions */
708static int smb_traffic_analyzer_chdir(vfs_handle_struct *handle, \
709 const char *path)
710{
711 struct chdir_data s_data;
712 s_data.result = SMB_VFS_NEXT_CHDIR(handle, path);
713 s_data.path = path;
714 DEBUG(10, ("smb_traffic_analyzer_chdir: CHDIR: %s\n", path));
715 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_chdir);
716 return s_data.result;
717}
718
719static int smb_traffic_analyzer_rename(vfs_handle_struct *handle, \
720 const struct smb_filename *smb_fname_src,
721 const struct smb_filename *smb_fname_dst)
722{
723 struct rename_data s_data;
724 s_data.result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, \
725 smb_fname_dst);
726 s_data.src = smb_fname_src->base_name;
727 s_data.dst = smb_fname_dst->base_name;
728 DEBUG(10, ("smb_traffic_analyzer_rename: RENAME: %s / %s\n",
729 smb_fname_src->base_name,
730 smb_fname_dst->base_name));
731 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rename);
732 return s_data.result;
733}
734
735static int smb_traffic_analyzer_rmdir(vfs_handle_struct *handle, \
736 const char *path)
737{
738 struct rmdir_data s_data;
739 s_data.result = SMB_VFS_NEXT_RMDIR(handle, path);
740 s_data.path = path;
741 DEBUG(10, ("smb_traffic_analyzer_rmdir: RMDIR: %s\n", path));
742 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rmdir);
743 return s_data.result;
744}
745
746static int smb_traffic_analyzer_mkdir(vfs_handle_struct *handle, \
747 const char *path, mode_t mode)
748{
749 struct mkdir_data s_data;
750 s_data.result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
751 s_data.path = path;
752 s_data.mode = mode;
753 DEBUG(10, ("smb_traffic_analyzer_mkdir: MKDIR: %s\n", path));
754 smb_traffic_analyzer_send_data(handle,
755 &s_data,
756 vfs_id_mkdir);
757 return s_data.result;
758}
759
760static ssize_t smb_traffic_analyzer_sendfile(vfs_handle_struct *handle,
761 int tofd,
762 files_struct *fromfsp,
763 const DATA_BLOB *hdr,
764 SMB_OFF_T offset,
765 size_t n)
766{
767 struct rw_data s_data;
768 s_data.len = SMB_VFS_NEXT_SENDFILE(handle,
769 tofd, fromfsp, hdr, offset, n);
770 s_data.filename = fromfsp->fsp_name->base_name;
771 DEBUG(10, ("smb_traffic_analyzer_sendfile: sendfile(r): %s\n",
772 fsp_str_dbg(fromfsp)));
773 smb_traffic_analyzer_send_data(handle,
774 &s_data,
775 vfs_id_read);
776 return s_data.len;
777}
778
779static ssize_t smb_traffic_analyzer_recvfile(vfs_handle_struct *handle,
780 int fromfd,
781 files_struct *tofsp,
782 SMB_OFF_T offset,
783 size_t n)
784{
785 struct rw_data s_data;
786 s_data.len = SMB_VFS_NEXT_RECVFILE(handle,
787 fromfd, tofsp, offset, n);
788 s_data.filename = tofsp->fsp_name->base_name;
789 DEBUG(10, ("smb_traffic_analyzer_recvfile: recvfile(w): %s\n",
790 fsp_str_dbg(tofsp)));
791 smb_traffic_analyzer_send_data(handle,
792 &s_data,
793 vfs_id_write);
794 return s_data.len;
795}
796
797
798static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
799 files_struct *fsp, void *data, size_t n)
800{
801 struct rw_data s_data;
802
803 s_data.len = SMB_VFS_NEXT_READ(handle, fsp, data, n);
804 s_data.filename = fsp->fsp_name->base_name;
805 DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp_str_dbg(fsp)));
806
807 smb_traffic_analyzer_send_data(handle,
808 &s_data,
809 vfs_id_read);
810 return s_data.len;
811}
812
813
814static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
815 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
816{
817 struct rw_data s_data;
818
819 s_data.len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
820 s_data.filename = fsp->fsp_name->base_name;
821 DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n",
822 fsp_str_dbg(fsp)));
823
824 smb_traffic_analyzer_send_data(handle,
825 &s_data,
826 vfs_id_pread);
827
828 return s_data.len;
829}
830
831static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
832 files_struct *fsp, const void *data, size_t n)
833{
834 struct rw_data s_data;
835
836 s_data.len = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
837 s_data.filename = fsp->fsp_name->base_name;
838 DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n",
839 fsp_str_dbg(fsp)));
840
841 smb_traffic_analyzer_send_data(handle,
842 &s_data,
843 vfs_id_write);
844 return s_data.len;
845}
846
847static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
848 files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
849{
850 struct rw_data s_data;
851
852 s_data.len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
853 s_data.filename = fsp->fsp_name->base_name;
854 DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", \
855 fsp_str_dbg(fsp)));
856
857 smb_traffic_analyzer_send_data(handle,
858 &s_data,
859 vfs_id_pwrite);
860 return s_data.len;
861}
862
863static int smb_traffic_analyzer_open(vfs_handle_struct *handle, \
864 struct smb_filename *smb_fname, files_struct *fsp,\
865 int flags, mode_t mode)
866{
867 struct open_data s_data;
868
869 s_data.result = SMB_VFS_NEXT_OPEN( handle, smb_fname, fsp,
870 flags, mode);
871 DEBUG(10,("smb_traffic_analyzer_open: OPEN: %s\n",
872 fsp_str_dbg(fsp)));
873 s_data.filename = fsp->fsp_name->base_name;
874 s_data.mode = mode;
875 smb_traffic_analyzer_send_data(handle,
876 &s_data,
877 vfs_id_open);
878 return s_data.result;
879}
880
881static int smb_traffic_analyzer_close(vfs_handle_struct *handle, \
882 files_struct *fsp)
883{
884 struct close_data s_data;
885 s_data.result = SMB_VFS_NEXT_CLOSE(handle, fsp);
886 DEBUG(10,("smb_traffic_analyzer_close: CLOSE: %s\n",
887 fsp_str_dbg(fsp)));
888 s_data.filename = fsp->fsp_name->base_name;
889 smb_traffic_analyzer_send_data(handle,
890 &s_data,
891 vfs_id_close);
892 return s_data.result;
893}
894
895
896static struct vfs_fn_pointers vfs_smb_traffic_analyzer_fns = {
897 .connect_fn = smb_traffic_analyzer_connect,
898 .vfs_read = smb_traffic_analyzer_read,
899 .pread = smb_traffic_analyzer_pread,
900 .write = smb_traffic_analyzer_write,
901 .pwrite = smb_traffic_analyzer_pwrite,
902 .mkdir = smb_traffic_analyzer_mkdir,
903 .rename = smb_traffic_analyzer_rename,
904 .chdir = smb_traffic_analyzer_chdir,
905 .open_fn = smb_traffic_analyzer_open,
906 .rmdir = smb_traffic_analyzer_rmdir,
907 .close_fn = smb_traffic_analyzer_close,
908 .sendfile = smb_traffic_analyzer_sendfile,
909 .recvfile = smb_traffic_analyzer_recvfile
910};
911
912/* Module initialization */
913NTSTATUS vfs_smb_traffic_analyzer_init(void)
914{
915 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
916 "smb_traffic_analyzer",
917 &vfs_smb_traffic_analyzer_fns);
918
919 if (!NT_STATUS_IS_OK(ret)) {
920 return ret;
921 }
922
923 vfs_smb_traffic_analyzer_debug_level =
924 debug_add_class("smb_traffic_analyzer");
925
926 if (vfs_smb_traffic_analyzer_debug_level == -1) {
927 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
928 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
929 "debugging class!\n"));
930 } else {
931 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
932 "'smb_traffic_analyzer': %d\n", \
933 vfs_smb_traffic_analyzer_debug_level));
934 }
935
936 return ret;
937}
Note: See TracBrowser for help on using the repository browser.