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"
32 #include "system/kerberos.h"
33 #include "smb_build.h"
34 #include "registry/registry.h"
35 #include "ntvfs/ntvfs.h"
36 #include "ntptr/ntptr.h"
39 recursively delete a directory tree
41 static void recursive_delete(const char *path)
51 for (de=readdir(dir);de;de=readdir(dir)) {
55 if (strcmp(de->d_name, ".") == 0 ||
56 strcmp(de->d_name, "..") == 0) {
60 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
61 if (stat(fname, &st) != 0) {
64 if (S_ISDIR(st.st_mode)) {
65 recursive_delete(fname);
69 if (unlink(fname) != 0) {
70 DEBUG(0,("Unabled to delete '%s' - %s\n",
71 fname, strerror(errno)));
72 smb_panic("unable to cleanup tmp files");
80 cleanup temporary files. This is the new alternative to
81 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
82 efficient on unix systems due to the lack of scaling of the byte
83 range locking system. So instead of putting the burden on tdb to
84 cleanup tmp files, this function deletes them.
86 static void cleanup_tmp_files(void)
89 TALLOC_CTX *mem_ctx = talloc_new(NULL);
91 path = smbd_tmp_path(mem_ctx, NULL);
93 recursive_delete(path);
100 static void setup_signals(void)
102 /* we are never interested in SIGPIPE */
103 BlockSignals(True,SIGPIPE);
106 /* we are never interested in SIGFPE */
107 BlockSignals(True,SIGFPE);
110 /* We are no longer interested in USR1 */
111 BlockSignals(True, SIGUSR1);
114 /* We are no longer interested in USR2 */
115 BlockSignals(True,SIGUSR2);
118 /* POSIX demands that signals are inherited. If the invoking process has
119 * these signals masked, we will have problems, as we won't recieve them. */
120 BlockSignals(False, SIGHUP);
121 BlockSignals(False, SIGTERM);
123 /* as we don't handle on this signals yet, we need to ignore them,
124 * instead of terminating */
125 CatchSignal(SIGHUP, SIG_IGN);
131 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
132 uint16_t flags, void *private)
134 const char *binary_name = private;
136 if (read(0, &c, 1) == 0) {
137 DEBUG(0,("%s: EOF on stdin - terminating\n", binary_name));
143 die if the user selected maximum runtime is exceeded
145 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
146 struct timeval t, void *private)
148 const char *binary_name = private;
149 DEBUG(0,("%s: maximum runtime exceeded - terminating\n", binary_name));
156 static int binary_smbd_main(const char *binary_name, int argc, const char *argv[])
158 BOOL interactive = False;
161 init_module_fn static_init[] = STATIC_SERVER_SERVICE_MODULES;
162 init_module_fn *shared_init;
163 struct event_context *event_ctx;
165 const char *model = "standard";
167 struct poptOption long_options[] = {
169 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
170 "Run interactive (not a daemon)", NULL},
171 {"model", 'M', POPT_ARG_STRING, &model, True,
172 "Select process model", "MODEL"},
173 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
174 "set maximum runtime of the server process, till autotermination", "seconds"},
180 pc = poptGetContext(binary_name, argc, argv, long_options, 0);
182 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
186 setup_logging(binary_name, interactive?DEBUG_STDOUT:DEBUG_FILE);
189 /* we want total control over the permissions on created files,
190 so set our umask to 0 */
193 DEBUG(0,("%s version %s started.\n", binary_name, SAMBA_VERSION_STRING));
194 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2005\n"));
196 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
197 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
202 DEBUG(3,("Becoming a daemon.\n"));
208 if (!directory_exist(lp_lockdir())) {
209 mkdir(lp_lockdir(), 0755);
212 pidfile_create(binary_name);
214 /* Do *not* remove this, until you have removed
215 * passdb/secrets.c, and proved that Samba still builds... */
216 /* Setup the SECRETS subsystem */
217 if (!secrets_init()) {
221 smbd_init_subsystems;
223 registry_init(); /* FIXME: maybe run this in the initialization function
224 of the winreg RPC server instead? */
226 ntptr_init(); /* FIXME: maybe run this in the initialization function
227 of the spoolss RPC server instead? */
229 ntvfs_init(); /* FIXME: maybe run this in the initialization functions
230 of the SMB[,2] server instead? */
232 process_model_init();
234 shared_init = load_samba_modules(NULL, "service");
236 run_init_functions(static_init);
237 run_init_functions(shared_init);
239 talloc_free(shared_init);
241 /* the event context is the top level structure in smbd. Everything else
242 should hang off that */
243 event_ctx = event_context_init(NULL);
246 /* catch EOF on stdin */
248 signal(SIGTTIN, SIG_IGN);
250 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
251 server_stdin_handler,
252 discard_const(binary_name));
257 event_add_timed(event_ctx, event_ctx,
258 timeval_current_ofs(max_runtime, 0),
260 discard_const(binary_name));
263 DEBUG(0,("%s: using '%s' process model\n", binary_name, model));
264 status = server_service_startup(event_ctx, model, lp_server_services());
265 if (!NT_STATUS_IS_OK(status)) {
266 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
270 /* wait for events - this is where smbd sits for most of its
272 event_loop_wait(event_ctx);
274 /* as everything hangs off this event context, freeing it
275 should initiate a clean shutdown of all services */
276 talloc_free(event_ctx);
281 int main(int argc, const char *argv[])
283 return binary_smbd_main("smbd", argc, argv);