s3-libnet: fix bug #6364: Pull realm from supplied username on libnet join
[Samba.git] / source3 / modules / vfs_smb_traffic_analyzer.c
bloba7fbeadbbe09c06dd8edcf0764b1881949285185
1 /*
2 * traffic-analyzer VFS module. Measure the smb traffic users create
3 * on the net.
5 * Copyright (C) Holger Hetterich, 2008
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/>.
22 #include "includes.h"
24 /* abstraction for the send_over_network function */
26 enum sock_type {INTERNET_SOCKET = 0, UNIX_DOMAIN_SOCKET};
28 #define LOCAL_PATHNAME "/var/tmp/stadsocket"
30 static int vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
32 static enum sock_type smb_traffic_analyzer_connMode(vfs_handle_struct *handle)
34 connection_struct *conn = handle->conn;
35 const char *Mode;
36 Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
37 "internet_socket");
38 if (strstr(Mode,"unix_domain_socket")) {
39 return UNIX_DOMAIN_SOCKET;
40 } else {
41 return INTERNET_SOCKET;
46 /* 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 */
52 int sockfd = -1;
53 struct addrinfo hints;
54 struct addrinfo *ailist = NULL;
55 struct addrinfo *res = NULL;
56 int ret;
58 ZERO_STRUCT(hints);
59 /* By default make sure it supports TCP. */
60 hints.ai_socktype = SOCK_STREAM;
61 hints.ai_flags = AI_ADDRCONFIG;
63 ret = getaddrinfo(name,
64 NULL,
65 &hints,
66 &ailist);
68 if (ret) {
69 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
70 "getaddrinfo failed for name %s [%s]\n",
71 name,
72 gai_strerror(ret) ));
73 return -1;
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;
81 NTSTATUS status;
83 if (!res->ai_addr || res->ai_addrlen == 0) {
84 continue;
87 ZERO_STRUCT(ss);
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)) {
92 break;
96 if (ailist) {
97 freeaddrinfo(ailist);
100 if (sockfd == -1) {
101 DEBUG(1, ("smb_traffic_analyzer: unable to create "
102 "socket, error is %s",
103 strerror(errno)));
104 return -1;
107 return sockfd;
110 /* Connect to a unix domain socket */
112 static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
113 const char *name)
115 /* Create the socket to stad */
116 int len, sock;
117 struct sockaddr_un remote;
119 DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
120 "Unix domain socket mode. Using %s\n",
121 name ));
123 if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
124 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
125 "Couldn't create socket, "
126 "make sure stad is running!\n"));
127 return -1;
129 remote.sun_family = AF_UNIX;
130 strlcpy(remote.sun_path, name,
131 sizeof(remote.sun_path));
132 len=strlen(remote.sun_path) + sizeof(remote.sun_family);
133 if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
134 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
135 "Could not connect to "
136 "socket, make sure\nstad is running!\n"));
137 close(sock);
138 return -1;
140 return sock;
143 /* Private data allowing shared connection sockets. */
145 struct refcounted_sock {
146 struct refcounted_sock *next, *prev;
147 char *name;
148 uint16_t port;
149 int sock;
150 unsigned int ref_count;
153 /* Send data over a socket */
155 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
156 ssize_t result,
157 const char *file_name,
158 bool Write)
160 struct refcounted_sock *rf_sock = NULL;
161 struct timeval tv;
162 time_t tv_sec;
163 struct tm *tm = NULL;
164 int seconds;
165 char *str = NULL;
166 char *username = NULL;
167 const char *anon_prefix = NULL;
168 const char *total_anonymization = NULL;
169 size_t len;
171 SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
173 if (rf_sock == NULL || rf_sock->sock == -1) {
174 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
175 "closed\n"));
176 return;
179 GetTimeOfDay(&tv);
180 tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
181 tm = localtime(&tv_sec);
182 if (!tm) {
183 return;
185 seconds=(float) (tv.tv_usec / 1000);
187 /* check if anonymization is required */
189 total_anonymization=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",
190 "total_anonymization", NULL);
192 anon_prefix=lp_parm_const_string(SNUM(handle->conn),"smb_traffic_analyzer",\
193 "anonymize_prefix", NULL );
194 if (anon_prefix!=NULL) {
195 if (total_anonymization!=NULL) {
196 username = talloc_asprintf(talloc_tos(),
197 "%s",
198 anon_prefix);
199 } else {
200 username = talloc_asprintf(talloc_tos(),
201 "%s%i",
202 anon_prefix,
203 str_checksum(
204 handle->conn->server_info->sanitized_username ) );
207 } else {
208 username = handle->conn->server_info->sanitized_username;
211 if (!username) {
212 return;
215 str = talloc_asprintf(talloc_tos(),
216 "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
217 "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
218 (unsigned int)result,
219 username,
220 pdb_get_domain(handle->conn->server_info->sam_account),
221 Write ? 'W' : 'R',
222 handle->conn->connectpath,
223 file_name,
224 tm->tm_year+1900,
225 tm->tm_mon+1,
226 tm->tm_mday,
227 tm->tm_hour,
228 tm->tm_min,
229 tm->tm_sec,
230 (int)seconds);
232 if (!str) {
233 return;
236 len = strlen(str);
238 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: sending %s\n",
239 str));
240 if (write_data(rf_sock->sock, str, len) != len) {
241 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
242 "error sending data to socket!\n"));
243 return ;
247 static struct refcounted_sock *sock_list;
249 static void smb_traffic_analyzer_free_data(void **pptr)
251 struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
252 if (rf_sock == NULL) {
253 return;
255 rf_sock->ref_count--;
256 if (rf_sock->ref_count != 0) {
257 return;
259 if (rf_sock->sock != -1) {
260 close(rf_sock->sock);
262 DLIST_REMOVE(sock_list, rf_sock);
263 TALLOC_FREE(rf_sock);
266 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
267 const char *service,
268 const char *user)
270 connection_struct *conn = handle->conn;
271 enum sock_type st = smb_traffic_analyzer_connMode(handle);
272 struct refcounted_sock *rf_sock = NULL;
273 const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
274 lp_parm_const_string(SNUM(conn),
275 "smb_traffic_analyzer",
276 "host", "localhost");
277 uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
278 atoi( lp_parm_const_string(SNUM(conn),
279 "smb_traffic_analyzer", "port", "9430"));
281 /* Are we already connected ? */
282 for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
283 if (port == rf_sock->port &&
284 (strcmp(name, rf_sock->name) == 0)) {
285 break;
289 /* If we're connected already, just increase the
290 * reference count. */
291 if (rf_sock) {
292 rf_sock->ref_count++;
293 } else {
294 /* New connection. */
295 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
296 if (rf_sock == NULL) {
297 errno = ENOMEM;
298 return -1;
300 rf_sock->name = talloc_strdup(rf_sock, name);
301 if (rf_sock->name == NULL) {
302 TALLOC_FREE(rf_sock);
303 errno = ENOMEM;
304 return -1;
306 rf_sock->port = port;
307 rf_sock->ref_count = 1;
309 if (st == UNIX_DOMAIN_SOCKET) {
310 rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
311 name);
312 } else {
314 rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
315 name,
316 port);
318 if (rf_sock->sock == -1) {
319 TALLOC_FREE(rf_sock);
320 return -1;
322 DLIST_ADD(sock_list, rf_sock);
325 /* Store the private data. */
326 SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
327 struct refcounted_sock, return -1);
328 return SMB_VFS_NEXT_CONNECT(handle, service, user);
331 /* VFS Functions: write, read, pread, pwrite for now */
333 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
334 files_struct *fsp, void *data, size_t n)
336 ssize_t result;
338 result = SMB_VFS_NEXT_READ(handle, fsp, data, n);
339 DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp->fsp_name ));
341 smb_traffic_analyzer_send_data(handle,
342 result,
343 fsp->fsp_name,
344 false);
345 return result;
349 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
350 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
352 ssize_t result;
354 result = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
356 DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n", fsp->fsp_name ));
358 smb_traffic_analyzer_send_data(handle,
359 result,
360 fsp->fsp_name,
361 false);
363 return result;
366 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
367 files_struct *fsp, const void *data, size_t n)
369 ssize_t result;
371 result = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
373 DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n", fsp->fsp_name ));
375 smb_traffic_analyzer_send_data(handle,
376 result,
377 fsp->fsp_name,
378 true);
379 return result;
382 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
383 files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
385 ssize_t result;
387 result = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
389 DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", fsp->fsp_name ));
391 smb_traffic_analyzer_send_data(handle,
392 result,
393 fsp->fsp_name,
394 true);
395 return result;
398 /* VFS operations we use */
400 static vfs_op_tuple smb_traffic_analyzer_tuples[] = {
402 {SMB_VFS_OP(smb_traffic_analyzer_connect), SMB_VFS_OP_CONNECT,
403 SMB_VFS_LAYER_LOGGER},
404 {SMB_VFS_OP(smb_traffic_analyzer_read), SMB_VFS_OP_READ,
405 SMB_VFS_LAYER_LOGGER},
406 {SMB_VFS_OP(smb_traffic_analyzer_pread), SMB_VFS_OP_PREAD,
407 SMB_VFS_LAYER_LOGGER},
408 {SMB_VFS_OP(smb_traffic_analyzer_write), SMB_VFS_OP_WRITE,
409 SMB_VFS_LAYER_LOGGER},
410 {SMB_VFS_OP(smb_traffic_analyzer_pwrite), SMB_VFS_OP_PWRITE,
411 SMB_VFS_LAYER_LOGGER},
412 {SMB_VFS_OP(NULL),SMB_VFS_OP_NOOP,SMB_VFS_LAYER_NOOP}
415 /* Module initialization */
417 NTSTATUS vfs_smb_traffic_analyzer_init(void)
419 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, \
420 "smb_traffic_analyzer", smb_traffic_analyzer_tuples);
422 if (!NT_STATUS_IS_OK(ret)) {
423 return ret;
426 vfs_smb_traffic_analyzer_debug_level =
427 debug_add_class("smb_traffic_analyzer");
429 if (vfs_smb_traffic_analyzer_debug_level == -1) {
430 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
431 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
432 "debugging class!\n"));
433 } else {
434 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
435 "'smb_traffic_analyzer': %d\n", \
436 vfs_smb_traffic_analyzer_debug_level));
439 return ret;