2 * Auditing VFS module for samba. Log selected file operations to syslog
5 * Copyright (C) Tim Potter, 1999-2000
6 * Copyright (C) Alexander Bokovoy, 2002
7 * Copyright (C) John H Terpstra, 2003
8 * Copyright (C) Stefan (metze) Metzmacher, 2003
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, see <http://www.gnu.org/licenses/>.
26 #include "system/filesys.h"
27 #include "system/syslog.h"
28 #include "smbd/smbd.h"
30 static int vfs_extd_audit_debug_level = DBGC_VFS;
33 #define DBGC_CLASS vfs_extd_audit_debug_level
35 static int audit_syslog_facility(vfs_handle_struct *handle)
37 static const struct enum_list enum_log_facilities[] = {
39 { LOG_LOCAL0, "LOCAL0" },
40 { LOG_LOCAL1, "LOCAL1" },
41 { LOG_LOCAL2, "LOCAL2" },
42 { LOG_LOCAL3, "LOCAL3" },
43 { LOG_LOCAL4, "LOCAL4" },
44 { LOG_LOCAL5, "LOCAL5" },
45 { LOG_LOCAL6, "LOCAL6" },
46 { LOG_LOCAL7, "LOCAL7" },
52 facility = lp_parm_enum(SNUM(handle->conn), "extd_audit", "facility", enum_log_facilities, LOG_USER);
58 static int audit_syslog_priority(vfs_handle_struct *handle)
60 static const struct enum_list enum_log_priorities[] = {
61 { LOG_EMERG, "EMERG" },
62 { LOG_ALERT, "ALERT" },
65 { LOG_WARNING, "WARNING" },
66 { LOG_NOTICE, "NOTICE" },
68 { LOG_DEBUG, "DEBUG" },
74 priority = lp_parm_enum(SNUM(handle->conn), "extd_audit", "priority",
75 enum_log_priorities, LOG_NOTICE);
77 priority = LOG_WARNING;
83 /* Implementation of vfs_ops. Pass everything on to the default
84 operation but log event first. */
86 static int audit_connect(vfs_handle_struct *handle, const char *svc, const char *user)
88 int result = SMB_VFS_NEXT_CONNECT(handle, svc, user);
94 openlog("smbd_audit", LOG_PID, audit_syslog_facility(handle));
96 if (lp_syslog() > 0) {
97 syslog(audit_syslog_priority(handle),
98 "connect to service %s by user %s\n",
101 DEBUG(10, ("Connected to service %s as user %s\n",
107 static void audit_disconnect(vfs_handle_struct *handle)
109 if (lp_syslog() > 0) {
110 syslog(audit_syslog_priority(handle), "disconnected\n");
112 DEBUG(10, ("Disconnected from VFS module extd_audit\n"));
113 SMB_VFS_NEXT_DISCONNECT(handle);
118 static SMB_STRUCT_DIR *audit_opendir(vfs_handle_struct *handle, const char *fname, const char *mask, uint32 attr)
120 SMB_STRUCT_DIR *result;
122 result = SMB_VFS_NEXT_OPENDIR(handle, fname, mask, attr);
124 if (lp_syslog() > 0) {
125 syslog(audit_syslog_priority(handle), "opendir %s %s%s\n",
127 (result == NULL) ? "failed: " : "",
128 (result == NULL) ? strerror(errno) : "");
130 DEBUG(1, ("vfs_extd_audit: opendir %s %s %s\n",
132 (result == NULL) ? "failed: " : "",
133 (result == NULL) ? strerror(errno) : ""));
138 static int audit_mkdir(vfs_handle_struct *handle, const char *path, mode_t mode)
142 result = SMB_VFS_NEXT_MKDIR(handle, path, mode);
144 if (lp_syslog() > 0) {
145 syslog(audit_syslog_priority(handle), "mkdir %s %s%s\n",
147 (result < 0) ? "failed: " : "",
148 (result < 0) ? strerror(errno) : "");
150 DEBUG(0, ("vfs_extd_audit: mkdir %s %s %s\n",
152 (result < 0) ? "failed: " : "",
153 (result < 0) ? strerror(errno) : ""));
158 static int audit_rmdir(vfs_handle_struct *handle, const char *path)
162 result = SMB_VFS_NEXT_RMDIR(handle, path);
164 if (lp_syslog() > 0) {
165 syslog(audit_syslog_priority(handle), "rmdir %s %s%s\n",
167 (result < 0) ? "failed: " : "",
168 (result < 0) ? strerror(errno) : "");
170 DEBUG(0, ("vfs_extd_audit: rmdir %s %s %s\n",
172 (result < 0) ? "failed: " : "",
173 (result < 0) ? strerror(errno) : ""));
178 static int audit_open(vfs_handle_struct *handle,
179 struct smb_filename *smb_fname, files_struct *fsp,
180 int flags, mode_t mode)
184 result = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
186 if (lp_syslog() > 0) {
187 syslog(audit_syslog_priority(handle), "open %s (fd %d) %s%s%s\n",
188 smb_fname->base_name, result,
189 ((flags & O_WRONLY) || (flags & O_RDWR)) ? "for writing " : "",
190 (result < 0) ? "failed: " : "",
191 (result < 0) ? strerror(errno) : "");
193 DEBUG(2, ("vfs_extd_audit: open %s %s %s\n",
194 smb_fname_str_dbg(smb_fname),
195 (result < 0) ? "failed: " : "",
196 (result < 0) ? strerror(errno) : ""));
201 static int audit_close(vfs_handle_struct *handle, files_struct *fsp)
205 result = SMB_VFS_NEXT_CLOSE(handle, fsp);
207 if (lp_syslog() > 0) {
208 syslog(audit_syslog_priority(handle), "close fd %d %s%s\n",
210 (result < 0) ? "failed: " : "",
211 (result < 0) ? strerror(errno) : "");
213 DEBUG(2, ("vfs_extd_audit: close fd %d %s %s\n",
215 (result < 0) ? "failed: " : "",
216 (result < 0) ? strerror(errno) : ""));
221 static int audit_rename(vfs_handle_struct *handle,
222 const struct smb_filename *smb_fname_src,
223 const struct smb_filename *smb_fname_dst)
227 result = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
229 if (lp_syslog() > 0) {
230 syslog(audit_syslog_priority(handle), "rename %s -> %s %s%s\n",
231 smb_fname_src->base_name,
232 smb_fname_dst->base_name,
233 (result < 0) ? "failed: " : "",
234 (result < 0) ? strerror(errno) : "");
236 DEBUG(1, ("vfs_extd_audit: rename old: %s newname: %s %s %s\n",
237 smb_fname_str_dbg(smb_fname_src),
238 smb_fname_str_dbg(smb_fname_dst),
239 (result < 0) ? "failed: " : "",
240 (result < 0) ? strerror(errno) : ""));
245 static int audit_unlink(vfs_handle_struct *handle,
246 const struct smb_filename *smb_fname)
250 result = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
252 if (lp_syslog() > 0) {
253 syslog(audit_syslog_priority(handle), "unlink %s %s%s\n",
254 smb_fname->base_name,
255 (result < 0) ? "failed: " : "",
256 (result < 0) ? strerror(errno) : "");
258 DEBUG(0, ("vfs_extd_audit: unlink %s %s %s\n",
259 smb_fname_str_dbg(smb_fname),
260 (result < 0) ? "failed: " : "",
261 (result < 0) ? strerror(errno) : ""));
266 static int audit_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
270 result = SMB_VFS_NEXT_CHMOD(handle, path, mode);
272 if (lp_syslog() > 0) {
273 syslog(audit_syslog_priority(handle), "chmod %s mode 0x%x %s%s\n",
275 (result < 0) ? "failed: " : "",
276 (result < 0) ? strerror(errno) : "");
278 DEBUG(1, ("vfs_extd_audit: chmod %s mode 0x%x %s %s\n",
279 path, (unsigned int)mode,
280 (result < 0) ? "failed: " : "",
281 (result < 0) ? strerror(errno) : ""));
286 static int audit_chmod_acl(vfs_handle_struct *handle, const char *path, mode_t mode)
290 result = SMB_VFS_NEXT_CHMOD_ACL(handle, path, mode);
292 if (lp_syslog() > 0) {
293 syslog(audit_syslog_priority(handle), "chmod_acl %s mode 0x%x %s%s\n",
295 (result < 0) ? "failed: " : "",
296 (result < 0) ? strerror(errno) : "");
298 DEBUG(1, ("vfs_extd_audit: chmod_acl %s mode 0x%x %s %s\n",
299 path, (unsigned int)mode,
300 (result < 0) ? "failed: " : "",
301 (result < 0) ? strerror(errno) : ""));
306 static int audit_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
310 result = SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
312 if (lp_syslog() > 0) {
313 syslog(audit_syslog_priority(handle), "fchmod %s mode 0x%x %s%s\n",
314 fsp->fsp_name->base_name, mode,
315 (result < 0) ? "failed: " : "",
316 (result < 0) ? strerror(errno) : "");
318 DEBUG(1, ("vfs_extd_audit: fchmod %s mode 0x%x %s %s",
319 fsp_str_dbg(fsp), (unsigned int)mode,
320 (result < 0) ? "failed: " : "",
321 (result < 0) ? strerror(errno) : ""));
326 static int audit_fchmod_acl(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
330 result = SMB_VFS_NEXT_FCHMOD_ACL(handle, fsp, mode);
332 if (lp_syslog() > 0) {
333 syslog(audit_syslog_priority(handle), "fchmod_acl %s mode 0x%x %s%s\n",
334 fsp->fsp_name->base_name, mode,
335 (result < 0) ? "failed: " : "",
336 (result < 0) ? strerror(errno) : "");
338 DEBUG(1, ("vfs_extd_audit: fchmod_acl %s mode 0x%x %s %s",
339 fsp_str_dbg(fsp), (unsigned int)mode,
340 (result < 0) ? "failed: " : "",
341 (result < 0) ? strerror(errno) : ""));
346 static struct vfs_fn_pointers vfs_extd_audit_fns = {
347 .connect_fn = audit_connect,
348 .disconnect = audit_disconnect,
349 .opendir = audit_opendir,
350 .mkdir = audit_mkdir,
351 .rmdir = audit_rmdir,
352 .open_fn = audit_open,
353 .close_fn = audit_close,
354 .rename = audit_rename,
355 .unlink = audit_unlink,
356 .chmod = audit_chmod,
357 .fchmod = audit_fchmod,
358 .chmod_acl = audit_chmod_acl,
359 .fchmod_acl = audit_fchmod_acl,
362 NTSTATUS vfs_extd_audit_init(void)
364 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
365 "extd_audit", &vfs_extd_audit_fns);
367 if (!NT_STATUS_IS_OK(ret))
370 vfs_extd_audit_debug_level = debug_add_class("extd_audit");
371 if (vfs_extd_audit_debug_level == -1) {
372 vfs_extd_audit_debug_level = DBGC_VFS;
373 DEBUG(0, ("vfs_extd_audit: Couldn't register custom debugging class!\n"));
375 DEBUG(10, ("vfs_extd_audit: Debug class number of 'extd_audit': %d\n", vfs_extd_audit_debug_level));