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"
35 #include "ntvfs/ntvfs.h"
36 #include "ntptr/ntptr.h"
37 #include "auth/gensec/gensec.h"
38 #include "smbd/process_model.h"
39 #include "smbd/service.h"
40 #include "passdb/secrets.h"
41 #include "util/pidfile.h"
44 recursively delete a directory tree
46 static void recursive_delete(const char *path)
56 for (de=readdir(dir);de;de=readdir(dir)) {
60 if (strcmp(de->d_name, ".") == 0 ||
61 strcmp(de->d_name, "..") == 0) {
65 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
66 if (stat(fname, &st) != 0) {
69 if (S_ISDIR(st.st_mode)) {
70 recursive_delete(fname);
74 if (unlink(fname) != 0) {
75 DEBUG(0,("Unabled to delete '%s' - %s\n",
76 fname, strerror(errno)));
77 smb_panic("unable to cleanup tmp files");
85 cleanup temporary files. This is the new alternative to
86 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
87 efficient on unix systems due to the lack of scaling of the byte
88 range locking system. So instead of putting the burden on tdb to
89 cleanup tmp files, this function deletes them.
91 static void cleanup_tmp_files(void)
94 TALLOC_CTX *mem_ctx = talloc_new(NULL);
96 path = smbd_tmp_path(mem_ctx, NULL);
98 recursive_delete(path);
102 static void sig_hup(int sig)
104 debug_schedule_reopen_logs();
110 static void setup_signals(void)
112 /* we are never interested in SIGPIPE */
113 BlockSignals(True,SIGPIPE);
116 /* we are never interested in SIGFPE */
117 BlockSignals(True,SIGFPE);
120 /* We are no longer interested in USR1 */
121 BlockSignals(True, SIGUSR1);
124 /* We are no longer interested in USR2 */
125 BlockSignals(True,SIGUSR2);
128 /* POSIX demands that signals are inherited. If the invoking process has
129 * these signals masked, we will have problems, as we won't recieve them. */
130 BlockSignals(False, SIGHUP);
131 BlockSignals(False, SIGTERM);
133 CatchSignal(SIGHUP, sig_hup);
139 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
140 uint16_t flags, void *private)
142 const char *binary_name = private;
144 if (read(0, &c, 1) == 0) {
145 DEBUG(0,("%s: EOF on stdin - terminating\n", binary_name));
151 die if the user selected maximum runtime is exceeded
153 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
154 struct timeval t, void *private)
156 const char *binary_name = private;
157 DEBUG(0,("%s: maximum runtime exceeded - terminating\n", binary_name));
164 static int binary_smbd_main(const char *binary_name, int argc, const char *argv[])
166 BOOL interactive = False;
169 init_module_fn static_init[] = STATIC_service_MODULES;
170 init_module_fn *shared_init;
171 struct event_context *event_ctx;
173 const char *model = "standard";
175 struct poptOption long_options[] = {
177 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
178 "Run interactive (not a daemon)", NULL},
179 {"model", 'M', POPT_ARG_STRING, &model, True,
180 "Select process model", "MODEL"},
181 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
182 "set maximum runtime of the server process, till autotermination", "seconds"},
188 pc = poptGetContext(binary_name, argc, argv, long_options, 0);
190 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
194 setup_logging(binary_name, interactive?DEBUG_STDOUT:DEBUG_FILE);
197 /* we want total control over the permissions on created files,
198 so set our umask to 0 */
201 DEBUG(0,("%s version %s started.\n", binary_name, SAMBA_VERSION_STRING));
202 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2006\n"));
204 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
205 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
210 DEBUG(3,("Becoming a daemon.\n"));
216 if (!directory_exist(lp_lockdir())) {
217 mkdir(lp_lockdir(), 0755);
220 pidfile_create(binary_name);
222 /* Do *not* remove this, until you have removed
223 * passdb/secrets.c, and proved that Samba still builds... */
224 /* Setup the SECRETS subsystem */
225 if (!secrets_init()) {
229 ldb_global_init(); /* FIXME: */
231 gensec_init(); /* FIXME: */
233 registry_init(); /* FIXME: maybe run this in the initialization function
234 of the winreg RPC server instead? */
236 ntptr_init(); /* FIXME: maybe run this in the initialization function
237 of the spoolss RPC server instead? */
239 ntvfs_init(); /* FIXME: maybe run this in the initialization functions
240 of the SMB[,2] server instead? */
242 process_model_init();
244 shared_init = load_samba_modules(NULL, "service");
246 run_init_functions(static_init);
247 run_init_functions(shared_init);
249 talloc_free(shared_init);
251 /* the event context is the top level structure in smbd. Everything else
252 should hang off that */
253 event_ctx = event_context_init(NULL);
256 /* catch EOF on stdin */
258 signal(SIGTTIN, SIG_IGN);
260 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
261 server_stdin_handler,
262 discard_const(binary_name));
267 event_add_timed(event_ctx, event_ctx,
268 timeval_current_ofs(max_runtime, 0),
270 discard_const(binary_name));
273 DEBUG(0,("%s: using '%s' process model\n", binary_name, model));
274 status = server_service_startup(event_ctx, model, lp_server_services());
275 if (!NT_STATUS_IS_OK(status)) {
276 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
280 /* wait for events - this is where smbd sits for most of its
282 event_loop_wait(event_ctx);
284 /* as everything hangs off this event context, freeing it
285 should initiate a clean shutdown of all services */
286 talloc_free(event_ctx);
291 int main(int argc, const char *argv[])
293 return binary_smbd_main("smbd", argc, argv);