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 "dynconfig.h"
30 #include "lib/cmdline/popt_common.h"
31 #include "system/dir.h"
32 #include "system/filesys.h"
36 recursively delete a directory tree
38 static void recursive_delete(const char *path)
48 for (de=readdir(dir);de;de=readdir(dir)) {
52 if (strcmp(de->d_name, ".") == 0 ||
53 strcmp(de->d_name, "..") == 0) {
57 fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
58 if (stat(fname, &st) != 0) {
61 if (S_ISDIR(st.st_mode)) {
62 recursive_delete(fname);
66 if (unlink(fname) != 0) {
67 DEBUG(0,("Unabled to delete '%s' - %s\n",
68 fname, strerror(errno)));
69 smb_panic("unable to cleanup tmp files");
77 cleanup temporary files. This is the new alternative to
78 TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
79 efficient on unix systems due to the lack of scaling of the byte
80 range locking system. So instead of putting the burden on tdb to
81 cleanup tmp files, this function deletes them.
83 static void cleanup_tmp_files(void)
86 TALLOC_CTX *mem_ctx = talloc_new(NULL);
88 path = smbd_tmp_path(mem_ctx, NULL);
90 recursive_delete(path);
97 static void setup_signals(void)
99 /* we are never interested in SIGPIPE */
100 BlockSignals(True,SIGPIPE);
103 /* we are never interested in SIGFPE */
104 BlockSignals(True,SIGFPE);
108 /* We are no longer interested in USR2 */
109 BlockSignals(True,SIGUSR2);
112 /* POSIX demands that signals are inherited. If the invoking process has
113 * these signals masked, we will have problems, as we won't recieve them. */
114 BlockSignals(False, SIGHUP);
115 BlockSignals(False, SIGUSR1);
116 BlockSignals(False, SIGTERM);
123 static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
124 uint16_t flags, void *private)
127 if (read(0, &c, 1) == 0) {
128 DEBUG(0,("smbd: EOF on stdin - terminating\n"));
135 die if the user selected maximum runtime is exceeded
137 static void max_runtime_handler(struct event_context *ev, struct timed_event *te,
138 struct timeval t, void *private)
140 DEBUG(0,("smbd maximum runtime exceeded - terminating\n"));
148 static int binary_smbd_main(int argc, const char *argv[])
150 BOOL interactive = False;
153 struct event_context *event_ctx;
155 const char *model = "standard";
157 struct poptOption long_options[] = {
159 {"interactive", 'i', POPT_ARG_VAL, &interactive, True,
160 "Run interactive (not a daemon)", NULL},
161 {"model", 'M', POPT_ARG_STRING, &model, True,
162 "Select process model", "MODEL"},
163 {"maximum-runtime", 0, POPT_ARG_INT, &max_runtime, True,
164 "set maximum time for smbd to live", "seconds"},
170 pc = poptGetContext("smbd", argc, argv, long_options, 0);
172 while((opt = poptGetNextOpt(pc)) != -1) /* noop */ ;
176 setup_logging(argv[0], interactive?DEBUG_STDOUT:DEBUG_FILE);
179 /* we want total control over the permissions on created files,
180 so set our umask to 0 */
183 DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
184 DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2005\n"));
186 if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
187 DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
192 DEBUG(3,("Becoming a daemon.\n"));
198 if (!directory_exist(lp_lockdir())) {
199 mkdir(lp_lockdir(), 0755);
202 pidfile_create("smbd");
204 /* Do *not* remove this, until you have removed
205 * passdb/secrets.c, and proved that Samba still builds... */
206 /* Setup the SECRETS subsystem */
207 if (!secrets_init()) {
211 smbd_init_subsystems;
213 /* the event context is the top level structure in smbd. Everything else
214 should hang off that */
215 event_ctx = event_context_init(NULL);
218 /* catch EOF on stdin */
220 signal(SIGTTIN, SIG_IGN);
222 event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
223 server_stdin_handler, NULL);
228 event_add_timed(event_ctx, event_ctx,
229 timeval_current_ofs(max_runtime, 0),
230 max_runtime_handler, NULL);
233 DEBUG(0,("Using %s process model\n", model));
234 status = server_service_startup(event_ctx, model, lp_server_services());
235 if (!NT_STATUS_IS_OK(status)) {
236 DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
240 /* wait for events - this is where smbd sits for most of its
242 event_loop_wait(event_ctx);
244 /* as everything hangs off this event context, freeing it
245 should initiate a clean shutdown of all services */
246 talloc_free(event_ctx);
251 int main(int argc, const char *argv[])
253 return binary_smbd_main(argc, argv);