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 "registry/registry.h"
34 #include "ntvfs/ntvfs.h"
35 #include "ntptr/ntptr.h"
36 #include "auth/gensec/gensec.h"
37 #include "smbd/process_model.h"
38 #include "smbd/service.h"
39 #include "passdb/secrets.h"
40 #include "util/pidfile.h"
43 recursively delete a directory tree
45 static void recursive_delete(const char *path)
55 for (de=readdir(dir);de;de=readdir(dir)) {
59 if (strcmp(de->d_name, ".") == 0 ||
60 strcmp(de->d_name, "..") == 0) {
64 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
65 if (stat(fname, &st) != 0) {
68 if (S_ISDIR(st.st_mode)) {
69 recursive_delete(fname);
73 if (unlink(fname) != 0) {
74 DEBUG(0,("Unabled to delete '%s' - %s\n",
75 fname, strerror(errno)));
76 smb_panic("unable to cleanup tmp files");
84 cleanup temporary files. This is the new alternative to
85 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
86 efficient on unix systems due to the lack of scaling of the byte
87 range locking system. So instead of putting the burden on tdb to
88 cleanup tmp files, this function deletes them.
90 static void cleanup_tmp_files(void)
93 TALLOC_CTX *mem_ctx = talloc_new(NULL);
95 path = smbd_tmp_path(mem_ctx, NULL);
97 recursive_delete(path);
104 static void setup_signals(void)
106 /* we are never interested in SIGPIPE */
107 BlockSignals(True,SIGPIPE);
110 /* we are never interested in SIGFPE */
111 BlockSignals(True,SIGFPE);
114 /* We are no longer interested in USR1 */
115 BlockSignals(True, SIGUSR1);
118 /* We are no longer interested in USR2 */
119 BlockSignals(True,SIGUSR2);
122 /* POSIX demands that signals are inherited. If the invoking process has
123 * these signals masked, we will have problems, as we won't recieve them. */
124 BlockSignals(False, SIGHUP);
125 BlockSignals(False, SIGTERM);
127 /* as we don't handle on this signals yet, we need to ignore them,
128 * instead of terminating */
129 CatchSignal(SIGHUP, SIG_IGN);
135 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
136 uint16_t flags, void *private)
138 const char *binary_name = private;
140 if (read(0, &c, 1) == 0) {
141 DEBUG(0,("%s: EOF on stdin - terminating\n", binary_name));
147 die if the user selected maximum runtime is exceeded
149 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
150 struct timeval t, void *private)
152 const char *binary_name = private;
153 DEBUG(0,("%s: maximum runtime exceeded - terminating\n", binary_name));
160 static int binary_smbd_main(const char *binary_name, int argc, const char *argv[])
162 BOOL interactive = False;
165 init_module_fn static_init[] = STATIC_SERVER_SERVICE_MODULES;
166 init_module_fn *shared_init;
167 struct event_context *event_ctx;
169 const char *model = "standard";
171 struct poptOption long_options[] = {
173 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
174 "Run interactive (not a daemon)", NULL},
175 {"model", 'M', POPT_ARG_STRING, &model, True,
176 "Select process model", "MODEL"},
177 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
178 "set maximum runtime of the server process, till autotermination", "seconds"},
184 pc = poptGetContext(binary_name, argc, argv, long_options, 0);
186 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
190 setup_logging(binary_name, interactive?DEBUG_STDOUT:DEBUG_FILE);
193 /* we want total control over the permissions on created files,
194 so set our umask to 0 */
197 DEBUG(0,("%s version %s started.\n", binary_name, SAMBA_VERSION_STRING));
198 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2006\n"));
200 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
201 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
206 DEBUG(3,("Becoming a daemon.\n"));
212 if (!directory_exist(lp_lockdir())) {
213 mkdir(lp_lockdir(), 0755);
216 pidfile_create(binary_name);
218 /* Do *not* remove this, until you have removed
219 * passdb/secrets.c, and proved that Samba still builds... */
220 /* Setup the SECRETS subsystem */
221 if (!secrets_init()) {
227 registry_init(); /* FIXME: maybe run this in the initialization function
228 of the winreg RPC server instead? */
230 ntptr_init(); /* FIXME: maybe run this in the initialization function
231 of the spoolss RPC server instead? */
233 ntvfs_init(); /* FIXME: maybe run this in the initialization functions
234 of the SMB[,2] server instead? */
236 process_model_init();
238 shared_init = load_samba_modules(NULL, "service");
240 run_init_functions(static_init);
241 run_init_functions(shared_init);
243 talloc_free(shared_init);
245 /* the event context is the top level structure in smbd. Everything else
246 should hang off that */
247 event_ctx = event_context_init(NULL);
250 /* catch EOF on stdin */
252 signal(SIGTTIN, SIG_IGN);
254 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
255 server_stdin_handler,
256 discard_const(binary_name));
261 event_add_timed(event_ctx, event_ctx,
262 timeval_current_ofs(max_runtime, 0),
264 discard_const(binary_name));
267 DEBUG(0,("%s: using '%s' process model\n", binary_name, model));
268 status = server_service_startup(event_ctx, model, lp_server_services());
269 if (!NT_STATUS_IS_OK(status)) {
270 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
274 /* wait for events - this is where smbd sits for most of its
276 event_loop_wait(event_ctx);
278 /* as everything hangs off this event context, freeing it
279 should initiate a clean shutdown of all services */
280 talloc_free(event_ctx);
285 int main(int argc, const char *argv[])
287 return binary_smbd_main("smbd", argc, argv);