2 Unix SMB/CIFS implementation.
4 Main SMB server routines
6 Copyright (C) Andrew Tridgell 1992-2005
7 Copyright (C) Martin Pool 2002
8 Copyright (C) Jelmer Vernooij 2002
9 Copyright (C) James J Myers 2003 <myersjj@samba.org>
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include "lib/events/events.h"
29 #include "lib/cmdline/popt_common.h"
30 #include "system/dir.h"
31 #include "system/filesys.h"
33 #include "ldb/include/ldb.h"
34 #include "registry/registry.h"
36 #include "smb_server/smb_server.h"
37 #include "ntvfs/ntvfs.h"
38 #include "ntptr/ntptr.h"
39 #include "auth/gensec/gensec.h"
40 #include "smbd/process_model.h"
41 #include "smbd/service.h"
42 #include "passdb/secrets.h"
43 #include "lib/util/pidfile.h"
46 recursively delete a directory tree
48 static void recursive_delete(const char *path)
58 for (de=readdir(dir);de;de=readdir(dir)) {
62 if (strcmp(de->d_name, ".") == 0 ||
63 strcmp(de->d_name, "..") == 0) {
67 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
68 if (stat(fname, &st) != 0) {
71 if (S_ISDIR(st.st_mode)) {
72 recursive_delete(fname);
76 if (unlink(fname) != 0) {
77 DEBUG(0,("Unabled to delete '%s' - %s\n",
78 fname, strerror(errno)));
79 smb_panic("unable to cleanup tmp files");
87 cleanup temporary files. This is the new alternative to
88 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
89 efficient on unix systems due to the lack of scaling of the byte
90 range locking system. So instead of putting the burden on tdb to
91 cleanup tmp files, this function deletes them.
93 static void cleanup_tmp_files(void)
96 TALLOC_CTX *mem_ctx = talloc_new(NULL);
98 path = smbd_tmp_path(mem_ctx, NULL);
100 recursive_delete(path);
101 talloc_free(mem_ctx);
104 static void sig_hup(int sig)
106 debug_schedule_reopen_logs();
112 static void setup_signals(void)
114 /* we are never interested in SIGPIPE */
115 BlockSignals(True,SIGPIPE);
118 /* we are never interested in SIGFPE */
119 BlockSignals(True,SIGFPE);
122 /* We are no longer interested in USR1 */
123 BlockSignals(True, SIGUSR1);
126 /* We are no longer interested in USR2 */
127 BlockSignals(True,SIGUSR2);
130 /* POSIX demands that signals are inherited. If the invoking process has
131 * these signals masked, we will have problems, as we won't recieve them. */
132 BlockSignals(False, SIGHUP);
133 BlockSignals(False, SIGTERM);
135 CatchSignal(SIGHUP, sig_hup);
141 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
142 uint16_t flags, void *private)
144 const char *binary_name = private;
146 if (read(0, &c, 1) == 0) {
147 DEBUG(0,("%s: EOF on stdin - terminating\n", binary_name));
153 die if the user selected maximum runtime is exceeded
155 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
156 struct timeval t, void *private)
158 const char *binary_name = private;
159 DEBUG(0,("%s: maximum runtime exceeded - terminating\n", binary_name));
166 static int binary_smbd_main(const char *binary_name, int argc, const char *argv[])
168 BOOL interactive = False;
171 init_module_fn static_init[] = STATIC_service_MODULES;
172 init_module_fn *shared_init;
173 struct event_context *event_ctx;
175 const char *model = "standard";
177 struct poptOption long_options[] = {
179 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
180 "Run interactive (not a daemon)", NULL},
181 {"model", 'M', POPT_ARG_STRING, &model, True,
182 "Select process model", "MODEL"},
183 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
184 "set maximum runtime of the server process, till autotermination", "seconds"},
190 pc = poptGetContext(binary_name, argc, argv, long_options, 0);
192 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
196 setup_logging(binary_name, interactive?DEBUG_STDOUT:DEBUG_FILE);
199 /* we want total control over the permissions on created files,
200 so set our umask to 0 */
203 DEBUG(0,("%s version %s started.\n", binary_name, SAMBA_VERSION_STRING));
204 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2006\n"));
206 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
207 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
212 DEBUG(3,("Becoming a daemon.\n"));
218 if (!directory_exist(lp_lockdir())) {
219 mkdir(lp_lockdir(), 0755);
222 pidfile_create(binary_name);
224 /* Do *not* remove this, until you have removed
225 * passdb/secrets.c, and proved that Samba still builds... */
226 /* Setup the SECRETS subsystem */
227 if (!secrets_init()) {
231 ldb_global_init(); /* FIXME: */
233 gensec_init(); /* FIXME: */
235 registry_init(); /* FIXME: maybe run this in the initialization function
236 of the winreg RPC server instead? */
238 ntptr_init(); /* FIXME: maybe run this in the initialization function
239 of the spoolss RPC server instead? */
241 ntvfs_init(); /* FIXME: maybe run this in the initialization functions
242 of the SMB[,2] server instead? */
244 process_model_init();
246 shared_init = load_samba_modules(NULL, "service");
248 run_init_functions(static_init);
249 run_init_functions(shared_init);
251 talloc_free(shared_init);
253 /* the event context is the top level structure in smbd. Everything else
254 should hang off that */
255 event_ctx = event_context_init(NULL);
258 /* catch EOF on stdin */
260 signal(SIGTTIN, SIG_IGN);
262 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
263 server_stdin_handler,
264 discard_const(binary_name));
269 event_add_timed(event_ctx, event_ctx,
270 timeval_current_ofs(max_runtime, 0),
272 discard_const(binary_name));
275 DEBUG(0,("%s: using '%s' process model\n", binary_name, model));
276 status = server_service_startup(event_ctx, model, lp_server_services());
277 if (!NT_STATUS_IS_OK(status)) {
278 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
282 /* wait for events - this is where smbd sits for most of its
284 event_loop_wait(event_ctx);
286 /* as everything hangs off this event context, freeing it
287 should initiate a clean shutdown of all services */
288 talloc_free(event_ctx);
293 int main(int argc, const char *argv[])
295 return binary_smbd_main("smbd", argc, argv);