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"
35 recursively delete a directory tree
37 static void recursive_delete(const char *path)
47 for (de=readdir(dir);de;de=readdir(dir)) {
51 if (strcmp(de->d_name, ".") == 0 ||
52 strcmp(de->d_name, "..") == 0) {
56 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
57 if (stat(fname, &st) != 0) {
60 if (S_ISDIR(st.st_mode)) {
61 recursive_delete(fname);
65 if (unlink(fname) != 0) {
66 DEBUG(0,("Unabled to delete '%s' - %s\n",
67 fname, strerror(errno)));
68 smb_panic("unable to cleanup tmp files");
76 cleanup temporary files. This is the new alternative to
77 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
78 efficient on unix systems due to the lack of scaling of the byte
79 range locking system. So instead of putting the burden on tdb to
80 cleanup tmp files, this function deletes them.
82 static void cleanup_tmp_files(void)
85 TALLOC_CTX *mem_ctx = talloc_new(NULL);
87 path = smbd_tmp_path(mem_ctx, NULL);
89 recursive_delete(path);
96 static void setup_signals(void)
98 /* we are never interested in SIGPIPE */
99 BlockSignals(True,SIGPIPE);
102 /* we are never interested in SIGFPE */
103 BlockSignals(True,SIGFPE);
107 /* We are no longer interested in USR2 */
108 BlockSignals(True,SIGUSR2);
111 /* POSIX demands that signals are inherited. If the invoking process has
112 * these signals masked, we will have problems, as we won't recieve them. */
113 BlockSignals(False, SIGHUP);
114 BlockSignals(False, SIGUSR1);
115 BlockSignals(False, SIGTERM);
122 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
123 uint16_t flags, void *private)
126 if (read(0, &c, 1) == 0) {
127 DEBUG(0,("smbd: EOF on stdin - terminating\n"));
134 die if the user selected maximum runtime is exceeded
136 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
137 struct timeval t, void *private)
139 DEBUG(0,("smbd maximum runtime exceeded - terminating\n"));
147 static int binary_smbd_main(int argc, const char *argv[])
149 BOOL interactive = False;
152 struct event_context *event_ctx;
154 const char *model = "standard";
156 struct poptOption long_options[] = {
158 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
159 "Run interactive (not a daemon)", NULL},
160 {"model", 'M', POPT_ARG_STRING, &model, True,
161 "Select process model", "MODEL"},
162 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
163 "set maximum time for smbd to live", "seconds"},
169 pc = poptGetContext("smbd", argc, argv, long_options, 0);
171 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
175 setup_logging(argv[0], interactive?DEBUG_STDOUT:DEBUG_FILE);
178 /* we want total control over the permissions on created files,
179 so set our umask to 0 */
182 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
183 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2005\n"));
185 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
186 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
191 DEBUG(3,("Becoming a daemon.\n"));
197 if (!directory_exist(lp_lockdir())) {
198 mkdir(lp_lockdir(), 0755);
201 pidfile_create("smbd");
203 /* Do *not* remove this, until you have removed
204 * passdb/secrets.c, and proved that Samba still builds... */
205 /* Setup the SECRETS subsystem */
206 if (!secrets_init()) {
210 smbd_init_subsystems;
212 /* the event context is the top level structure in smbd. Everything else
213 should hang off that */
214 event_ctx = event_context_init(NULL);
217 /* catch EOF on stdin */
219 signal(SIGTTIN, SIG_IGN);
221 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
222 server_stdin_handler, NULL);
227 event_add_timed(event_ctx, event_ctx,
228 timeval_current_ofs(max_runtime, 0),
229 max_runtime_handler, NULL);
232 DEBUG(0,("Using %s process model\n", model));
233 status = server_service_startup(event_ctx, model, lp_server_services());
234 if (!NT_STATUS_IS_OK(status)) {
235 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
239 /* wait for events - this is where smbd sits for most of its
241 event_loop_wait(event_ctx);
243 /* as everything hangs off this event context, freeing it
244 should initiate a clean shutdown of all services */
245 talloc_free(event_ctx);
250 int main(int argc, const char *argv[])
252 return binary_smbd_main(argc, argv);