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s3-vfs: rename open function to open_fn.
[Samba.git] / source3 / modules / vfs_smb_traffic_analyzer.c
blobe8aa385d69cf5c0ec44284194bce742cad67d89f
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 */
33 enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
34
35 #define LOCAL_PATHNAME "/var/tmp/stadsocket"
36
37 static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
38
39 static 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 */
54 static 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 */
117 static 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. */
149 struct 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 */
168 static char *smb_traffic_analyzer_encrypt( TALLOC_CTX *ctx,
169 const char *akey, const char *str, size_t *len)
170 {
171 int s1,s2,h,d;
172 AES_KEY key;
173 unsigned char filler[17]= "................";
174 char *output;
175 unsigned char crypted[18];
176 if (akey == NULL) return NULL;
177 samba_AES_set_encrypt_key((unsigned char *) akey, 128, &key);
178 s1 = strlen(str) / 16;
179 s2 = strlen(str) % 16;
180 for (h = 0; h < s2; h++) *(filler+h)=*(str+(s1*16)+h);
181 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created %s"
182 " as filling block.\n", filler));
183 output = talloc_array(ctx, char, (s1*16)+17 );
184 d=0;
185 for (h = 0; h < s1; h++) {
186 samba_AES_encrypt((unsigned char *) str+(16*h), crypted, &key);
187 for (d = 0; d<16; d++) output[d+(16*h)]=crypted[d];
188 }
189 samba_AES_encrypt( (unsigned char *) str+(16*h), filler, &key );
190 for (d = 0;d < 16; d++) output[d+(16*h)]=*(filler+d);
191 *len = (s1*16)+16;
192 return output;
193 }
194
195 /**
196 * Create a v2 header.
197 * TALLLOC_CTX *ctx Talloc context to work on
198 * const char *state_flags State flag string
199 * int len length of the data block
200 */
201 static char *smb_traffic_analyzer_create_header( TALLOC_CTX *ctx,
202 const char *state_flags, size_t data_len)
203 {
204 char *header = talloc_asprintf( ctx, "V2.%s%017u",
205 state_flags, (unsigned int) data_len);
206 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: created Header:\n"));
207 dump_data(10, (uint8_t *)header, strlen(header));
208 return header;
209 }
210
211
212 /**
213 * Actually send header and data over the network
214 * char *header Header data
215 * char *data Data Block
216 * int dlength Length of data block
217 * int socket
218 */
219 static void smb_traffic_analyzer_write_data( char *header, char *data,
220 int dlength, int _socket)
221 {
222 int len = strlen(header);
223 if (write_data( _socket, header, len) != len) {
224 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
225 "error sending the header"
226 " over the socket!\n"));
227 }
228 DEBUG(10,("smb_traffic_analyzer_write_data: sending data:\n"));
229 dump_data( 10, (uint8_t *)data, dlength);
230
231 if (write_data( _socket, data, dlength) != dlength) {
232 DEBUG(1, ("smb_traffic_analyzer_write_data: "
233 "error sending crypted data to socket!\n"));
234 }
235 }
236
237
238 /*
239 * Anonymize a string if required.
240 * TALLOC_CTX *ctx The talloc context to work on
241 * const char *str The string to anonymize
242 * vfs_handle_struct *handle The handle struct to work on
243 *
244 * Returns a newly allocated string, either the anonymized one,
245 * or a copy of const char *str. The caller has to take care for
246 * freeing the allocated memory.
247 */
248 static char *smb_traffic_analyzer_anonymize( TALLOC_CTX *ctx,
249 const char *str,
250 vfs_handle_struct *handle )
251 {
252 const char *total_anonymization;
253 const char *anon_prefix;
254 char *output;
255 total_anonymization=lp_parm_const_string(SNUM(handle->conn),
256 "smb_traffic_analyzer",
257 "total_anonymization", NULL);
258
259 anon_prefix=lp_parm_const_string(SNUM(handle->conn),
260 "smb_traffic_analyzer",
261 "anonymize_prefix", NULL );
262 if (anon_prefix != NULL) {
263 if (total_anonymization != NULL) {
264 output = talloc_asprintf(ctx, "%s",
265 anon_prefix);
266 } else {
267 output = talloc_asprintf(ctx, "%s%i", anon_prefix,
268 str_checksum(str));
269 }
270 } else {
271 output = talloc_asprintf(ctx, "%s", str);
272 }
273
274 return output;
275 }
276
277
278 /**
279 * The marshalling function for protocol v2.
280 * TALLOC_CTX *ctx Talloc context to work on
281 * struct tm *tm tm struct for the timestamp
282 * int seconds milliseconds of the timestamp
283 * vfs_handle_struct *handle vfs_handle_struct
284 * char *username Name of the user
285 * int vfs_operation VFS operation identifier
286 * int count Number of the common data blocks
287 * [...] variable args data blocks taken from the individual
288 * VFS data structures
289 *
290 * Returns the complete data block to send. The caller has to
291 * take care for freeing the allocated buffer.
292 */
293 static char *smb_traffic_analyzer_create_string( TALLOC_CTX *ctx,
294 struct tm *tm, int seconds, vfs_handle_struct *handle, \
295 char *username, int vfs_operation, int count, ... )
296 {
297
298 va_list ap;
299 char *arg = NULL;
300 int len;
301 char *common_data_count_str = NULL;
302 char *timestr = NULL;
303 char *sidstr = NULL;
304 char *usersid = NULL;
305 char *buf = NULL;
306 char *vfs_operation_str = NULL;
307 const char *service_name = lp_const_servicename(handle->conn->params->service);
308
309 /*
310 * first create the data that is transfered with any VFS op
311 * These are, in the following order:
312 *(0) number of data to come [6 in v2.0]
313 * 1.vfs_operation identifier
314 * 2.username
315 * 3.user-SID
316 * 4.affected share
317 * 5.domain
318 * 6.timestamp
319 * 7.IP Addresss of client
320 */
321
322 /*
323 * number of common data blocks to come,
324 * this is a #define in vfs_smb_traffic_anaylzer.h,
325 * it's length is known at compile time
326 */
327 common_data_count_str = talloc_strdup( ctx, SMBTA_COMMON_DATA_COUNT);
328 /* vfs operation identifier */
329 vfs_operation_str = talloc_asprintf( common_data_count_str, "%i",
330 vfs_operation);
331 /*
332 * Handle anonymization. In protocol v2, we have to anonymize
333 * both the SID and the username. The name is already
334 * anonymized if needed, by the calling function.
335 */
336 usersid = dom_sid_string( common_data_count_str,
337 &handle->conn->session_info->security_token->sids[0]);
338
339 sidstr = smb_traffic_analyzer_anonymize(
340 common_data_count_str,
341 usersid,
342 handle);
343
344 /* time stamp */
345 timestr = talloc_asprintf( common_data_count_str, \
346 "%04d-%02d-%02d %02d:%02d:%02d.%03d", \
347 tm->tm_year+1900, \
348 tm->tm_mon+1, \
349 tm->tm_mday, \
350 tm->tm_hour, \
351 tm->tm_min, \
352 tm->tm_sec, \
353 (int)seconds);
354 len = strlen( timestr );
355 /* create the string of common data */
356 buf = talloc_asprintf(ctx,
357 "%s%04u%s%04u%s%04u%s%04u%s%04u%s%04u%s%04u%s",
358 common_data_count_str,
359 (unsigned int) strlen(vfs_operation_str),
360 vfs_operation_str,
361 (unsigned int) strlen(username),
362 username,
363 (unsigned int) strlen(sidstr),
364 sidstr,
365 (unsigned int) strlen(service_name),
366 service_name,
367 (unsigned int)
368 strlen(handle->conn->session_info->info3->base.domain.string),
369 handle->conn->session_info->info3->base.domain.string,
370 (unsigned int) strlen(timestr),
371 timestr,
372 (unsigned int) strlen(handle->conn->sconn->client_id.addr),
373 handle->conn->sconn->client_id.addr);
374
375 talloc_free(common_data_count_str);
376
377 /* data blocks depending on the VFS function */
378 va_start( ap, count );
379 while ( count-- ) {
380 arg = va_arg( ap, char * );
381 /*
382 * protocol v2 sends a four byte string
383 * as a header to each block, including
384 * the numbers of bytes to come in the
385 * next string.
386 */
387 len = strlen( arg );
388 buf = talloc_asprintf_append( buf, "%04u%s", len, arg);
389 }
390 va_end( ap );
391 return buf;
392 }
393
394 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
395 void *data,
396 enum vfs_id vfs_operation )
397 {
398 struct refcounted_sock *rf_sock = NULL;
399 struct timeval tv;
400 time_t tv_sec;
401 struct tm *tm = NULL;
402 int seconds;
403 char *str = NULL;
404 char *username = NULL;
405 char *header = NULL;
406 const char *protocol_version = NULL;
407 bool Write = false;
408 size_t len;
409 size_t size;
410 char *akey, *output;
411
412 /*
413 * The state flags are part of the header
414 * and are descripted in the protocol description
415 * in vfs_smb_traffic_analyzer.h. They begin at byte
416 * 03 of the header.
417 */
418 char state_flags[9] = "000000\0";
419
420 SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
421
422 if (rf_sock == NULL || rf_sock->sock == -1) {
423 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
424 "closed\n"));
425 return;
426 }
427
428 GetTimeOfDay(&tv);
429 tv_sec = tv.tv_sec;
430 tm = localtime(&tv_sec);
431 if (!tm) {
432 return;
433 }
434 seconds=(float) (tv.tv_usec / 1000);
435
436 /*
437 * Check if anonymization is required, and if yes do this only for
438 * the username here, needed vor protocol version 1. In v2 we
439 * additionally anonymize the SID, which is done in it's marshalling
440 * function.
441 */
442 username = smb_traffic_analyzer_anonymize( talloc_tos(),
443 handle->conn->session_info->sanitized_username,
444 handle);
445
446 if (!username) {
447 return;
448 }
449
450 protocol_version = lp_parm_const_string(SNUM(handle->conn),
451 "smb_traffic_analyzer",
452 "protocol_version", NULL );
453
454
455 if ( protocol_version == NULL || strcmp( protocol_version,"V1") == 0) {
456
457 struct rw_data *s_data = (struct rw_data *) data;
458
459 /*
460 * in case of protocol v1, ignore any vfs operations
461 * except read,pread,write,pwrite, and set the "Write"
462 * bool accordingly, send data and return.
463 */
464 if ( vfs_operation > vfs_id_pwrite ) return;
465
466 if ( vfs_operation <= vfs_id_pread ) Write=false;
467 else Write=true;
468
469 str = talloc_asprintf(talloc_tos(),
470 "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
471 "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
472 (unsigned int) s_data->len,
473 username,
474 handle->conn->session_info->info3->base.domain.string,
475 Write ? 'W' : 'R',
476 handle->conn->connectpath,
477 s_data->filename,
478 tm->tm_year+1900,
479 tm->tm_mon+1,
480 tm->tm_mday,
481 tm->tm_hour,
482 tm->tm_min,
483 tm->tm_sec,
484 (int)seconds);
485 len = strlen(str);
486 if (write_data(rf_sock->sock, str, len) != len) {
487 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
488 "error sending V1 protocol data to socket!\n"));
489 return;
490 }
491
492 } else if ( strcmp( protocol_version, "V2") == 0) {
493
494 switch( vfs_operation ) {
495 case vfs_id_open: ;
496 str = smb_traffic_analyzer_create_string( talloc_tos(),
497 tm, seconds, handle, username, vfs_id_open,
498 3, ((struct open_data *) data)->filename,
499 talloc_asprintf( talloc_tos(), "%u",
500 ((struct open_data *) data)->mode),
501 talloc_asprintf( talloc_tos(), "%u",
502 ((struct open_data *) data)->result));
503 break;
504 case vfs_id_close: ;
505 str = smb_traffic_analyzer_create_string( talloc_tos(),
506 tm, seconds, handle, username, vfs_id_close,
507 2, ((struct close_data *) data)->filename,
508 talloc_asprintf( talloc_tos(), "%u",
509 ((struct close_data *) data)->result));
510 break;
511 case vfs_id_mkdir: ;
512 str = smb_traffic_analyzer_create_string( talloc_tos(),
513 tm, seconds, handle, username, vfs_id_mkdir, \
514 3, ((struct mkdir_data *) data)->path, \
515 talloc_asprintf( talloc_tos(), "%u", \
516 ((struct mkdir_data *) data)->mode), \
517 talloc_asprintf( talloc_tos(), "%u", \
518 ((struct mkdir_data *) data)->result ));
519 break;
520 case vfs_id_rmdir: ;
521 str = smb_traffic_analyzer_create_string( talloc_tos(),
522 tm, seconds, handle, username, vfs_id_rmdir,
523 2, ((struct rmdir_data *) data)->path, \
524 talloc_asprintf( talloc_tos(), "%u", \
525 ((struct rmdir_data *) data)->result ));
526 break;
527 case vfs_id_rename: ;
528 str = smb_traffic_analyzer_create_string( talloc_tos(),
529 tm, seconds, handle, username, vfs_id_rename,
530 3, ((struct rename_data *) data)->src, \
531 ((struct rename_data *) data)->dst,
532 talloc_asprintf(talloc_tos(), "%u", \
533 ((struct rename_data *) data)->result));
534 break;
535 case vfs_id_chdir: ;
536 str = smb_traffic_analyzer_create_string( talloc_tos(),
537 tm, seconds, handle, username, vfs_id_chdir,
538 2, ((struct chdir_data *) data)->path, \
539 talloc_asprintf(talloc_tos(), "%u", \
540 ((struct chdir_data *) data)->result));
541 break;
542
543 case vfs_id_write:
544 case vfs_id_pwrite:
545 case vfs_id_read:
546 case vfs_id_pread: ;
547 str = smb_traffic_analyzer_create_string( talloc_tos(),
548 tm, seconds, handle, username, vfs_operation,
549 2, ((struct rw_data *) data)->filename, \
550 talloc_asprintf(talloc_tos(), "%u", \
551 (unsigned int)
552 ((struct rw_data *) data)->len));
553 break;
554 default:
555 DEBUG(1, ("smb_traffic_analyzer: error! "
556 "wrong VFS operation id detected!\n"));
557 return;
558 }
559
560 } else {
561 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
562 "error, unknown protocol given!\n"));
563 return;
564 }
565
566 if (!str) {
567 DEBUG(1, ("smb_traffic_analyzer_send_data: "
568 "unable to create string to send!\n"));
569 return;
570 }
571
572
573 /*
574 * If configured, optain the key and run AES encryption
575 * over the data.
576 */
577 become_root();
578 akey = (char *) secrets_fetch("smb_traffic_analyzer_key", &size);
579 unbecome_root();
580 if ( akey != NULL ) {
581 state_flags[2] = 'E';
582 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: a key was"
583 " found, encrypting data!\n"));
584 output = smb_traffic_analyzer_encrypt( talloc_tos(),
585 akey, str, &len);
586 SAFE_FREE(akey);
587 header = smb_traffic_analyzer_create_header( talloc_tos(),
588 state_flags, len);
589
590 DEBUG(10, ("smb_traffic_analyzer_send_data_socket:"
591 " header created for crypted data: %s\n", header));
592 smb_traffic_analyzer_write_data(header, output, len,
593 rf_sock->sock);
594 return;
595
596 }
597
598 len = strlen(str);
599 header = smb_traffic_analyzer_create_header( talloc_tos(),
600 state_flags, len);
601 smb_traffic_analyzer_write_data(header, str, strlen(str),
602 rf_sock->sock);
603
604 }
605
606 static struct refcounted_sock *sock_list;
607
608 static void smb_traffic_analyzer_free_data(void **pptr)
609 {
610 struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
611 if (rf_sock == NULL) {
612 return;
613 }
614 rf_sock->ref_count--;
615 if (rf_sock->ref_count != 0) {
616 return;
617 }
618 if (rf_sock->sock != -1) {
619 close(rf_sock->sock);
620 }
621 DLIST_REMOVE(sock_list, rf_sock);
622 TALLOC_FREE(rf_sock);
623 }
624
625 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
626 const char *service,
627 const char *user)
628 {
629 connection_struct *conn = handle->conn;
630 enum sock_type st = smb_traffic_analyzer_connMode(handle);
631 struct refcounted_sock *rf_sock = NULL;
632 const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
633 lp_parm_const_string(SNUM(conn),
634 "smb_traffic_analyzer",
635 "host", "localhost");
636 uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
637 atoi( lp_parm_const_string(SNUM(conn),
638 "smb_traffic_analyzer", "port", "9430"));
639 int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
640
641 if (ret < 0) {
642 return ret;
643 }
644
645 /* Are we already connected ? */
646 for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
647 if (port == rf_sock->port &&
648 (strcmp(name, rf_sock->name) == 0)) {
649 break;
650 }
651 }
652
653 /* If we're connected already, just increase the
654 * reference count. */
655 if (rf_sock) {
656 rf_sock->ref_count++;
657 } else {
658 /* New connection. */
659 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
660 if (rf_sock == NULL) {
661 SMB_VFS_NEXT_DISCONNECT(handle);
662 errno = ENOMEM;
663 return -1;
664 }
665 rf_sock->name = talloc_strdup(rf_sock, name);
666 if (rf_sock->name == NULL) {
667 SMB_VFS_NEXT_DISCONNECT(handle);
668 TALLOC_FREE(rf_sock);
669 errno = ENOMEM;
670 return -1;
671 }
672 rf_sock->port = port;
673 rf_sock->ref_count = 1;
674
675 if (st == UNIX_DOMAIN_SOCKET) {
676 rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
677 name);
678 } else {
679
680 rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
681 name,
682 port);
683 }
684 if (rf_sock->sock == -1) {
685 SMB_VFS_NEXT_DISCONNECT(handle);
686 TALLOC_FREE(rf_sock);
687 return -1;
688 }
689 DLIST_ADD(sock_list, rf_sock);
690 }
691
692 /* Store the private data. */
693 SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
694 struct refcounted_sock, return -1);
695 return 0;
696 }
697
698 /* VFS Functions */
699 static int smb_traffic_analyzer_chdir(vfs_handle_struct *handle, \
700 const char *path)
701 {
702 struct chdir_data s_data;
703 s_data.result = SMB_VFS_NEXT_CHDIR(handle, path);
704 s_data.path = path;
705 DEBUG(10, ("smb_traffic_analyzer_chdir: CHDIR: %s\n", path));
706 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_chdir);
707 return s_data.result;
708 }
709
710 static int smb_traffic_analyzer_rename(vfs_handle_struct *handle, \
711 const struct smb_filename *smb_fname_src,
712 const struct smb_filename *smb_fname_dst)
713 {
714 struct rename_data s_data;
715 s_data.result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, \
716 smb_fname_dst);
717 s_data.src = smb_fname_src->base_name;
718 s_data.dst = smb_fname_dst->base_name;
719 DEBUG(10, ("smb_traffic_analyzer_rename: RENAME: %s / %s\n",
720 smb_fname_src->base_name,
721 smb_fname_dst->base_name));
722 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rename);
723 return s_data.result;
724 }
725
726 static int smb_traffic_analyzer_rmdir(vfs_handle_struct *handle, \
727 const char *path)
728 {
729 struct rmdir_data s_data;
730 s_data.result = SMB_VFS_NEXT_RMDIR(handle, path);
731 s_data.path = path;
732 DEBUG(10, ("smb_traffic_analyzer_rmdir: RMDIR: %s\n", path));
733 smb_traffic_analyzer_send_data(handle, &s_data, vfs_id_rmdir);
734 return s_data.result;
735 }
736
737 static int smb_traffic_analyzer_mkdir(vfs_handle_struct *handle, \
738 const char *path, mode_t mode)
739 {
740 struct mkdir_data s_data;
741 s_data.result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
742 s_data.path = path;
743 s_data.mode = mode;
744 DEBUG(10, ("smb_traffic_analyzer_mkdir: MKDIR: %s\n", path));
745 smb_traffic_analyzer_send_data(handle,
746 &s_data,
747 vfs_id_mkdir);
748 return s_data.result;
749 }
750
751 static ssize_t smb_traffic_analyzer_sendfile(vfs_handle_struct *handle,
752 int tofd,
753 files_struct *fromfsp,
754 const DATA_BLOB *hdr,
755 SMB_OFF_T offset,
756 size_t n)
757 {
758 struct rw_data s_data;
759 s_data.len = SMB_VFS_NEXT_SENDFILE(handle,
760 tofd, fromfsp, hdr, offset, n);
761 s_data.filename = fromfsp->fsp_name->base_name;
762 DEBUG(10, ("smb_traffic_analyzer_sendfile: sendfile(r): %s\n",
763 fsp_str_dbg(fromfsp)));
764 smb_traffic_analyzer_send_data(handle,
765 &s_data,
766 vfs_id_read);
767 return s_data.len;
768 }
769
770 static ssize_t smb_traffic_analyzer_recvfile(vfs_handle_struct *handle,
771 int fromfd,
772 files_struct *tofsp,
773 SMB_OFF_T offset,
774 size_t n)
775 {
776 struct rw_data s_data;
777 s_data.len = SMB_VFS_NEXT_RECVFILE(handle,
778 fromfd, tofsp, offset, n);
779 s_data.filename = tofsp->fsp_name->base_name;
780 DEBUG(10, ("smb_traffic_analyzer_recvfile: recvfile(w): %s\n",
781 fsp_str_dbg(tofsp)));
782 smb_traffic_analyzer_send_data(handle,
783 &s_data,
784 vfs_id_write);
785 return s_data.len;
786 }
787
788
789 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
790 files_struct *fsp, void *data, size_t n)
791 {
792 struct rw_data s_data;
793
794 s_data.len = SMB_VFS_NEXT_READ(handle, fsp, data, n);
795 s_data.filename = fsp->fsp_name->base_name;
796 DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp_str_dbg(fsp)));
797
798 smb_traffic_analyzer_send_data(handle,
799 &s_data,
800 vfs_id_read);
801 return s_data.len;
802 }
803
804
805 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
806 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
807 {
808 struct rw_data s_data;
809
810 s_data.len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
811 s_data.filename = fsp->fsp_name->base_name;
812 DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n",
813 fsp_str_dbg(fsp)));
814
815 smb_traffic_analyzer_send_data(handle,
816 &s_data,
817 vfs_id_pread);
818
819 return s_data.len;
820 }
821
822 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
823 files_struct *fsp, const void *data, size_t n)
824 {
825 struct rw_data s_data;
826
827 s_data.len = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
828 s_data.filename = fsp->fsp_name->base_name;
829 DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n",
830 fsp_str_dbg(fsp)));
831
832 smb_traffic_analyzer_send_data(handle,
833 &s_data,
834 vfs_id_write);
835 return s_data.len;
836 }
837
838 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
839 files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
840 {
841 struct rw_data s_data;
842
843 s_data.len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
844 s_data.filename = fsp->fsp_name->base_name;
845 DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", \
846 fsp_str_dbg(fsp)));
847
848 smb_traffic_analyzer_send_data(handle,
849 &s_data,
850 vfs_id_pwrite);
851 return s_data.len;
852 }
853
854 static int smb_traffic_analyzer_open(vfs_handle_struct *handle, \
855 struct smb_filename *smb_fname, files_struct *fsp,\
856 int flags, mode_t mode)
857 {
858 struct open_data s_data;
859
860 s_data.result = SMB_VFS_NEXT_OPEN( handle, smb_fname, fsp,
861 flags, mode);
862 DEBUG(10,("smb_traffic_analyzer_open: OPEN: %s\n",
863 fsp_str_dbg(fsp)));
864 s_data.filename = fsp->fsp_name->base_name;
865 s_data.mode = mode;
866 smb_traffic_analyzer_send_data(handle,
867 &s_data,
868 vfs_id_open);
869 return s_data.result;
870 }
871
872 static int smb_traffic_analyzer_close(vfs_handle_struct *handle, \
873 files_struct *fsp)
874 {
875 struct close_data s_data;
876 s_data.result = SMB_VFS_NEXT_CLOSE(handle, fsp);
877 DEBUG(10,("smb_traffic_analyzer_close: CLOSE: %s\n",
878 fsp_str_dbg(fsp)));
879 s_data.filename = fsp->fsp_name->base_name;
880 smb_traffic_analyzer_send_data(handle,
881 &s_data,
882 vfs_id_close);
883 return s_data.result;
884 }
885
886
887 static struct vfs_fn_pointers vfs_smb_traffic_analyzer_fns = {
888 .connect_fn = smb_traffic_analyzer_connect,
889 .vfs_read = smb_traffic_analyzer_read,
890 .pread = smb_traffic_analyzer_pread,
891 .write = smb_traffic_analyzer_write,
892 .pwrite = smb_traffic_analyzer_pwrite,
893 .mkdir = smb_traffic_analyzer_mkdir,
894 .rename = smb_traffic_analyzer_rename,
895 .chdir = smb_traffic_analyzer_chdir,
896 .open_fn = smb_traffic_analyzer_open,
897 .rmdir = smb_traffic_analyzer_rmdir,
898 .close_fn = smb_traffic_analyzer_close,
899 .sendfile = smb_traffic_analyzer_sendfile,
900 .recvfile = smb_traffic_analyzer_recvfile
901 };
902
903 /* Module initialization */
904 NTSTATUS vfs_smb_traffic_analyzer_init(void)
905 {
906 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
907 "smb_traffic_analyzer",
908 &vfs_smb_traffic_analyzer_fns);
909
910 if (!NT_STATUS_IS_OK(ret)) {
911 return ret;
912 }
913
914 vfs_smb_traffic_analyzer_debug_level =
915 debug_add_class("smb_traffic_analyzer");
916
917 if (vfs_smb_traffic_analyzer_debug_level == -1) {
918 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
919 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
920 "debugging class!\n"));
921 } else {
922 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
923 "'smb_traffic_analyzer': %d\n", \
924 vfs_smb_traffic_analyzer_debug_level));
925 }
926
927 return ret;
928 }
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