2 * traffic-analyzer VFS module. Measure the smb traffic users create
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/>.
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;
36 Mode=lp_parm_const_string(SNUM(conn), "smb_traffic_analyzer","mode", \
38 if (strstr(Mode,"unix_domain_socket")) {
39 return UNIX_DOMAIN_SOCKET;
41 return INTERNET_SOCKET;
45 /* Connect to an internet socket */
47 static int smb_traffic_analyzer_connect_inet_socket(vfs_handle_struct *handle,
48 const char *name, uint16_t port)
50 /* Create a streaming Socket */
52 struct addrinfo hints;
53 struct addrinfo *ailist = NULL;
54 struct addrinfo *res = NULL;
58 /* By default make sure it supports TCP. */
59 hints.ai_socktype = SOCK_STREAM;
60 hints.ai_flags = AI_ADDRCONFIG;
62 ret = getaddrinfo(name,
68 DEBUG(3,("smb_traffic_analyzer_connect_inet_socket: "
69 "getaddrinfo failed for name %s [%s]\n",
75 DEBUG(3,("smb_traffic_analyzer: Internet socket mode. Hostname: %s,"
76 "Port: %i\n", name, port));
78 for (res = ailist; res; res = res->ai_next) {
79 struct sockaddr_storage ss;
81 if (!res->ai_addr || res->ai_addrlen == 0) {
86 memcpy(&ss, res->ai_addr, res->ai_addrlen);
88 sockfd = open_socket_out(SOCK_STREAM, &ss, port, 10000);
99 DEBUG(1, ("smb_traffic_analyzer: unable to create "
100 "socket, error is %s",
108 /* Connect to a unix domain socket */
110 static int smb_traffic_analyzer_connect_unix_socket(vfs_handle_struct *handle,
113 /* Create the socket to stad */
115 struct sockaddr_un remote;
117 DEBUG(7, ("smb_traffic_analyzer_connect_unix_socket: "
118 "Unix domain socket mode. Using %s\n",
121 if ((sock = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) {
122 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
123 "Couldn't create socket, "
124 "make sure stad is running!\n"));
126 remote.sun_family = AF_UNIX;
127 strlcpy(remote.sun_path, name,
128 sizeof(remote.sun_path));
129 len=strlen(remote.sun_path) + sizeof(remote.sun_family);
130 if (connect(sock, (struct sockaddr *)&remote, len) == -1 ) {
131 DEBUG(1, ("smb_traffic_analyzer_connect_unix_socket: "
132 "Could not connect to "
133 "socket, make sure\nstad is running!\n"));
140 /* Private data allowing shared connection sockets. */
142 struct refcounted_sock {
143 struct refcounted_sock *next, *prev;
147 unsigned int ref_count;
150 /* Send data over a socket */
152 static void smb_traffic_analyzer_send_data(vfs_handle_struct *handle,
154 const char *file_name,
157 struct refcounted_sock *rf_sock = NULL;
160 struct tm *tm = NULL;
165 SMB_VFS_HANDLE_GET_DATA(handle, rf_sock, struct refcounted_sock, return);
167 if (rf_sock == NULL || rf_sock->sock == -1) {
168 DEBUG(1, ("smb_traffic_analyzer_send_data: socket is "
174 tv_sec = convert_timespec_to_time_t(convert_timeval_to_timespec(tv));
175 tm = localtime(&tv_sec);
179 seconds=(float) (tv.tv_usec / 1000);
181 str = talloc_asprintf(talloc_tos(),
182 "V1,%u,\"%s\",\"%s\",\"%c\",\"%s\",\"%s\","
183 "\"%04d-%02d-%02d %02d:%02d:%02d.%03d\"\n",
184 (unsigned int)result,
185 handle->conn->server_info->sanitized_username,
186 pdb_get_domain(handle->conn->server_info->sam_account),
188 handle->conn->connectpath,
204 DEBUG(10, ("smb_traffic_analyzer_send_data_socket: sending %s\n",
206 if (write_data(rf_sock->sock, str, len) != len) {
207 DEBUG(1, ("smb_traffic_analyzer_send_data_socket: "
208 "error sending data to socket!\n"));
213 static struct refcounted_sock *sock_list;
215 static void smb_traffic_analyzer_free_data(void **pptr)
217 struct refcounted_sock *rf_sock = *(struct refcounted_sock **)pptr;
218 if (rf_sock == NULL) {
221 rf_sock->ref_count--;
222 if (rf_sock->ref_count != 0) {
225 if (rf_sock->sock != -1) {
226 close(rf_sock->sock);
228 DLIST_REMOVE(sock_list, rf_sock);
229 TALLOC_FREE(rf_sock);
232 static int smb_traffic_analyzer_connect(struct vfs_handle_struct *handle,
236 connection_struct *conn = handle->conn;
237 enum sock_type st = smb_traffic_analyzer_connMode(handle);
238 struct refcounted_sock *rf_sock = NULL;
239 const char *name = (st == UNIX_DOMAIN_SOCKET) ? LOCAL_PATHNAME :
240 lp_parm_const_string(SNUM(conn),
241 "smb_traffic_analyzer",
242 "host", "localhost");
243 uint16_t port = (st == UNIX_DOMAIN_SOCKET) ? 0 :
244 atoi( lp_parm_const_string(SNUM(conn),
245 "smb_traffic_analyzer", "port", "9430"));
247 /* Are we already connected ? */
248 for (rf_sock = sock_list; rf_sock; rf_sock = rf_sock->next) {
249 if (port == rf_sock->port &&
250 (strcmp(name, rf_sock->name) == 0)) {
255 /* If we're connected already, just increase the
256 * reference count. */
258 rf_sock->ref_count++;
260 /* New connection. */
261 rf_sock = TALLOC_ZERO_P(NULL, struct refcounted_sock);
262 if (rf_sock == NULL) {
266 rf_sock->name = talloc_strdup(rf_sock, name);
267 if (rf_sock->name == NULL) {
268 TALLOC_FREE(rf_sock);
272 rf_sock->port = port;
273 rf_sock->ref_count = 1;
275 if (st == UNIX_DOMAIN_SOCKET) {
276 rf_sock->sock = smb_traffic_analyzer_connect_unix_socket(handle,
280 rf_sock->sock = smb_traffic_analyzer_connect_inet_socket(handle,
284 if (rf_sock->sock == -1) {
285 TALLOC_FREE(rf_sock);
288 DLIST_ADD(sock_list, rf_sock);
291 /* Store the private data. */
292 SMB_VFS_HANDLE_SET_DATA(handle, rf_sock, smb_traffic_analyzer_free_data,
293 struct refcounted_sock, return -1);
294 return SMB_VFS_NEXT_CONNECT(handle, service, user);
297 /* VFS Functions: write, read, pread, pwrite for now */
299 static ssize_t smb_traffic_analyzer_read(vfs_handle_struct *handle, \
300 files_struct *fsp, void *data, size_t n)
304 result = SMB_VFS_NEXT_READ(handle, fsp, data, n);
305 DEBUG(10, ("smb_traffic_analyzer_read: READ: %s\n", fsp->fsp_name ));
307 smb_traffic_analyzer_send_data(handle,
315 static ssize_t smb_traffic_analyzer_pread(vfs_handle_struct *handle, \
316 files_struct *fsp, void *data, size_t n, SMB_OFF_T offset)
320 result = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
322 DEBUG(10, ("smb_traffic_analyzer_pread: PREAD: %s\n", fsp->fsp_name ));
324 smb_traffic_analyzer_send_data(handle,
332 static ssize_t smb_traffic_analyzer_write(vfs_handle_struct *handle, \
333 files_struct *fsp, const void *data, size_t n)
337 result = SMB_VFS_NEXT_WRITE(handle, fsp, data, n);
339 DEBUG(10, ("smb_traffic_analyzer_write: WRITE: %s\n", fsp->fsp_name ));
341 smb_traffic_analyzer_send_data(handle,
348 static ssize_t smb_traffic_analyzer_pwrite(vfs_handle_struct *handle, \
349 files_struct *fsp, const void *data, size_t n, SMB_OFF_T offset)
353 result = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
355 DEBUG(10, ("smb_traffic_analyzer_pwrite: PWRITE: %s\n", fsp->fsp_name ));
357 smb_traffic_analyzer_send_data(handle,
364 /* VFS operations we use */
366 static vfs_op_tuple smb_traffic_analyzer_tuples[] = {
368 {SMB_VFS_OP(smb_traffic_analyzer_connect), SMB_VFS_OP_CONNECT,
369 SMB_VFS_LAYER_LOGGER},
370 {SMB_VFS_OP(smb_traffic_analyzer_read), SMB_VFS_OP_READ,
371 SMB_VFS_LAYER_LOGGER},
372 {SMB_VFS_OP(smb_traffic_analyzer_pread), SMB_VFS_OP_PREAD,
373 SMB_VFS_LAYER_LOGGER},
374 {SMB_VFS_OP(smb_traffic_analyzer_write), SMB_VFS_OP_WRITE,
375 SMB_VFS_LAYER_LOGGER},
376 {SMB_VFS_OP(smb_traffic_analyzer_pwrite), SMB_VFS_OP_PWRITE,
377 SMB_VFS_LAYER_LOGGER},
378 {SMB_VFS_OP(NULL),SMB_VFS_OP_NOOP,SMB_VFS_LAYER_NOOP}
381 /* Module initialization */
383 NTSTATUS vfs_smb_traffic_analyzer_init(void)
385 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, \
386 "smb_traffic_analyzer", smb_traffic_analyzer_tuples);
388 if (!NT_STATUS_IS_OK(ret)) {
392 vfs_smb_traffic_analyzer_debug_level =
393 debug_add_class("smb_traffic_analyzer");
395 if (vfs_smb_traffic_analyzer_debug_level == -1) {
396 vfs_smb_traffic_analyzer_debug_level = DBGC_VFS;
397 DEBUG(1, ("smb_traffic_analyzer_init: Couldn't register custom"
398 "debugging class!\n"));
400 DEBUG(3, ("smb_traffic_analyzer_init: Debug class number of"
401 "'smb_traffic_analyzer': %d\n", \
402 vfs_smb_traffic_analyzer_debug_level));