/*
Unix SMB/CIFS implementation.
+
Main SMB server routines
- Copyright (C) Andrew Tridgell 1992-1998
+
+ Copyright (C) Andrew Tridgell 1992-2005
Copyright (C) Martin Pool 2002
Copyright (C) Jelmer Vernooij 2002
Copyright (C) James J Myers 2003 <myersjj@samba.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
+#include "lib/events/events.h"
+#include "version.h"
+#include "lib/cmdline/popt_common.h"
+#include "system/dir.h"
+#include "system/filesys.h"
+#include "build.h"
+#include "ldb/include/ldb.h"
+#include "registry/registry.h"
+#include "ntvfs/ntvfs.h"
+#include "ntptr/ntptr.h"
+#include "auth/gensec/gensec.h"
+#include "smbd/process_model.h"
+#include "smbd/service.h"
+#include "param/secrets.h"
+#include "smbd/pidfile.h"
+#include "cluster/ctdb/ctdb_cluster.h"
+#include "param/param.h"
-static void exit_server(const char *reason)
+/*
+ recursively delete a directory tree
+*/
+static void recursive_delete(const char *path)
{
- DEBUG(3,("Server exit (%s)\n", (reason ? reason : "")));
- exit(0);
-}
+ DIR *dir;
+ struct dirent *de;
-/****************************************************************************
- main server.
-****************************************************************************/
-static int binary_smbd_main(int argc,const char *argv[])
-{
- BOOL is_daemon = False;
- BOOL interactive = False;
- BOOL Fork = True;
- BOOL log_stdout = False;
- int opt;
- poptContext pc;
- struct server_context *srv_ctx;
- const char *model = "standard";
- struct poptOption long_options[] = {
- POPT_AUTOHELP
- {"daemon", 'D', POPT_ARG_VAL, &is_daemon, True, "Become a daemon (default)" },
- {"interactive", 'i', POPT_ARG_VAL, &interactive, True, "Run interactive (not a daemon)"},
- {"foreground", 'F', POPT_ARG_VAL, &Fork, False, "Run daemon in foreground (for daemontools & etc)" },
- {"log-stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
- {"port", 'p', POPT_ARG_STRING, NULL, 0, "Listen on the specified ports"},
- {"model", 'M', POPT_ARG_STRING, &model, 0, "select process model"},
- POPT_COMMON_SAMBA
- { NULL }
- };
-
- pc = poptGetContext("smbd", argc, argv, long_options, 0);
-
- while((opt = poptGetNextOpt(pc)) != -1) {
- switch (opt) {
- case 'p':
- lp_set_cmdline("smb ports", poptGetOptArg(pc));
- break;
- }
+ dir = opendir(path);
+ if (!dir) {
+ return;
}
- poptFreeContext(pc);
- load_case_tables();
+ for (de=readdir(dir);de;de=readdir(dir)) {
+ char *fname;
+ struct stat st;
- if (interactive) {
- Fork = False;
- log_stdout = True;
+ if (ISDOT(de->d_name) || ISDOTDOT(de->d_name)) {
+ continue;
+ }
+
+ fname = talloc_asprintf(path, "%s/%s", path, de->d_name);
+ if (stat(fname, &st) != 0) {
+ continue;
+ }
+ if (S_ISDIR(st.st_mode)) {
+ recursive_delete(fname);
+ talloc_free(fname);
+ continue;
+ }
+ if (unlink(fname) != 0) {
+ DEBUG(0,("Unabled to delete '%s' - %s\n",
+ fname, strerror(errno)));
+ smb_panic("unable to cleanup tmp files");
+ }
+ talloc_free(fname);
}
+ closedir(dir);
+}
- if (log_stdout && Fork) {
- DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
- exit(1);
+/*
+ cleanup temporary files. This is the new alternative to
+ TDB_CLEAR_IF_FIRST. Unfortunately TDB_CLEAR_IF_FIRST is not
+ efficient on unix systems due to the lack of scaling of the byte
+ range locking system. So instead of putting the burden on tdb to
+ cleanup tmp files, this function deletes them.
+*/
+static void cleanup_tmp_files(struct loadparm_context *lp_ctx)
+{
+ char *path;
+ TALLOC_CTX *mem_ctx = talloc_new(NULL);
+
+ path = smbd_tmp_path(mem_ctx, lp_ctx, NULL);
+
+ recursive_delete(path);
+ talloc_free(mem_ctx);
+}
+
+static void sig_hup(int sig)
+{
+ debug_schedule_reopen_logs();
+}
+
+static void sig_term(int sig)
+{
+#if HAVE_GETPGRP
+ static int done_sigterm;
+ if (done_sigterm == 0 && getpgrp() == getpid()) {
+ DEBUG(0,("SIGTERM: killing children\n"));
+ done_sigterm = 1;
+ kill(-getpgrp(), SIGTERM);
}
- setup_logging(argv[0], log_stdout?DEBUG_STDOUT:DEBUG_FILE);
+#endif
+ exit(0);
+}
- fault_setup((void (*)(void *))exit_server);
-
+/*
+ setup signal masks
+*/
+static void setup_signals(void)
+{
/* we are never interested in SIGPIPE */
- BlockSignals(True,SIGPIPE);
+ BlockSignals(true,SIGPIPE);
#if defined(SIGFPE)
/* we are never interested in SIGFPE */
- BlockSignals(True,SIGFPE);
+ BlockSignals(true,SIGFPE);
#endif
+ /* We are no longer interested in USR1 */
+ BlockSignals(true, SIGUSR1);
+
#if defined(SIGUSR2)
/* We are no longer interested in USR2 */
- BlockSignals(True,SIGUSR2);
+ BlockSignals(true,SIGUSR2);
#endif
/* POSIX demands that signals are inherited. If the invoking process has
* these signals masked, we will have problems, as we won't recieve them. */
- BlockSignals(False, SIGHUP);
- BlockSignals(False, SIGUSR1);
- BlockSignals(False, SIGTERM);
+ BlockSignals(false, SIGHUP);
+ BlockSignals(false, SIGTERM);
+
+ CatchSignal(SIGHUP, sig_hup);
+ CatchSignal(SIGTERM, sig_term);
+}
+
+/*
+ handle io on stdin
+*/
+static void server_stdin_handler(struct event_context *event_ctx, struct fd_event *fde,
+ uint16_t flags, void *private)
+{
+ const char *binary_name = (const char *)private;
+ uint8_t c;
+ if (read(0, &c, 1) == 0) {
+ DEBUG(0,("%s: EOF on stdin - terminating\n", binary_name));
+#if HAVE_GETPGRP
+ if (getpgrp() == getpid()) {
+ kill(-getpgrp(), SIGTERM);
+ }
+#endif
+ exit(0);
+ }
+}
+
+/*
+ die if the user selected maximum runtime is exceeded
+*/
+_NORETURN_ static void max_runtime_handler(struct event_context *ev,
+ struct timed_event *te,
+ struct timeval t, void *private)
+{
+ const char *binary_name = (const char *)private;
+ DEBUG(0,("%s: maximum runtime exceeded - terminating\n", binary_name));
+ exit(0);
+}
+
+/*
+ main server.
+*/
+static int binary_smbd_main(const char *binary_name, int argc, const char *argv[])
+{
+ bool opt_daemon = false;
+ bool opt_interactive = false;
+ int opt;
+ poptContext pc;
+ init_module_fn static_init[] = { STATIC_service_MODULES };
+ init_module_fn *shared_init;
+ struct event_context *event_ctx;
+ NTSTATUS status;
+ const char *model = "standard";
+ int max_runtime = 0;
+ enum {
+ OPT_DAEMON = 1000,
+ OPT_INTERACTIVE,
+ OPT_PROCESS_MODEL
+ };
+ struct poptOption long_options[] = {
+ POPT_AUTOHELP
+ {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON,
+ "Become a daemon (default)", NULL },
+ {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE,
+ "Run interactive (not a daemon)", NULL},
+ {"model", 'M', POPT_ARG_STRING, NULL, OPT_PROCESS_MODEL,
+ "Select process model", "MODEL"},
+ {"maximum-runtime",0, POPT_ARG_INT, &max_runtime, 0,
+ "set maximum runtime of the server process, till autotermination", "seconds"},
+ POPT_COMMON_SAMBA
+ POPT_COMMON_VERSION
+ { NULL }
+ };
+
+ pc = poptGetContext(binary_name, argc, argv, long_options, 0);
+ while((opt = poptGetNextOpt(pc)) != -1) {
+ switch(opt) {
+ case OPT_DAEMON:
+ opt_daemon = true;
+ break;
+ case OPT_INTERACTIVE:
+ opt_interactive = true;
+ break;
+ case OPT_PROCESS_MODEL:
+ model = poptGetOptArg(pc);
+ break;
+ default:
+ fprintf(stderr, "\nInvalid option %s: %s\n\n",
+ poptBadOption(pc, 0), poptStrerror(opt));
+ poptPrintUsage(pc, stderr, 0);
+ exit(1);
+ }
+ }
+
+ if (opt_daemon && opt_interactive) {
+ fprintf(stderr,"\nERROR: "
+ "Option -i|--interactive is not allowed together with -D|--daemon\n\n");
+ poptPrintUsage(pc, stderr, 0);
+ exit(1);
+ } else if (!opt_interactive) {
+ /* default is --daemon */
+ opt_daemon = true;
+ }
+
+ poptFreeContext(pc);
+
+ setup_logging(binary_name, opt_interactive?DEBUG_STDOUT:DEBUG_FILE);
+ setup_signals();
/* we want total control over the permissions on created files,
so set our umask to 0 */
umask(0);
- reopen_logs();
-
- DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
- DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2004\n"));
+ DEBUG(0,("%s version %s started.\n", binary_name, SAMBA_VERSION_STRING));
+ DEBUGADD(0,("Copyright Andrew Tridgell and the Samba Team 1992-2007\n"));
if (sizeof(uint16_t) < 2 || sizeof(uint32_t) < 4 || sizeof(uint64_t) < 8) {
DEBUG(0,("ERROR: Samba is not configured correctly for the word size on your machine\n"));
+ DEBUGADD(0,("sizeof(uint16_t) = %u, sizeof(uint32_t) %u, sizeof(uint64_t) = %u\n",
+ (unsigned int)sizeof(uint16_t), (unsigned int)sizeof(uint32_t), (unsigned int)sizeof(uint64_t)));
exit(1);
}
- if (!reload_services(NULL, False))
- return(-1);
-
- if (!is_daemon && !is_a_socket(0)) {
- if (!interactive)
- DEBUG(0,("standard input is not a socket, assuming -D option\n"));
+ if (opt_daemon) {
+ DEBUG(3,("Becoming a daemon.\n"));
+ become_daemon(true);
+ }
- /*
- * Setting is_daemon here prevents us from eventually calling
- * the open_sockets_inetd()
- */
+ cleanup_tmp_files(cmdline_lp_ctx);
- is_daemon = True;
+ if (!directory_exist(lp_lockdir(cmdline_lp_ctx))) {
+ mkdir(lp_lockdir(cmdline_lp_ctx), 0755);
}
- if (is_daemon && !interactive) {
- DEBUG(3,("Becoming a daemon.\n"));
- become_daemon(Fork);
+ pidfile_create(lp_piddir(cmdline_lp_ctx), binary_name);
+
+ /* Do *not* remove this, until you have removed
+ * passdb/secrets.c, and proved that Samba still builds... */
+ /* Setup the SECRETS subsystem */
+ if (!secrets_init(cmdline_lp_ctx)) {
+ exit(1);
}
- if (!directory_exist(lp_lockdir(), NULL)) {
- mkdir(lp_lockdir(), 0755);
+ share_init();
+
+ gensec_init(cmdline_lp_ctx); /* FIXME: */
+
+ ntptr_init(cmdline_lp_ctx); /* FIXME: maybe run this in the initialization function
+ of the spoolss RPC server instead? */
+
+ ntvfs_init(cmdline_lp_ctx); /* FIXME: maybe run this in the initialization functions
+ of the SMB[,2] server instead? */
+
+ process_model_init(cmdline_lp_ctx);
+
+ shared_init = load_samba_modules(NULL, cmdline_lp_ctx, "service");
+
+ run_init_functions(static_init);
+ run_init_functions(shared_init);
+
+ talloc_free(shared_init);
+
+ /* the event context is the top level structure in smbd. Everything else
+ should hang off that */
+ event_ctx = event_context_init(talloc_autofree_context());
+
+ if (event_ctx == NULL) {
+ DEBUG(0,("Initializing event context failed\n"));
+ return 1;
}
- if (is_daemon) {
- pidfile_create("smbd");
+ /* initialise clustering if needed */
+ cluster_ctdb_init(cmdline_lp_ctx, event_ctx, model);
+
+ if (opt_interactive) {
+ /* catch EOF on stdin */
+#ifdef SIGTTIN
+ signal(SIGTTIN, SIG_IGN);
+#endif
+ event_add_fd(event_ctx, event_ctx, 0, EVENT_FD_READ,
+ server_stdin_handler,
+ discard_const(binary_name));
}
- init_subsystems();
- DEBUG(0,("Using %s process model\n", model));
- srv_ctx = server_service_startup(model);
- if (!srv_ctx) {
- DEBUG(0,("Starting Services failed.\n"));
+ if (max_runtime) {
+ event_add_timed(event_ctx, event_ctx,
+ timeval_current_ofs(max_runtime, 0),
+ max_runtime_handler,
+ discard_const(binary_name));
+ }
+
+ DEBUG(0,("%s: using '%s' process model\n", binary_name, model));
+ status = server_service_startup(event_ctx, cmdline_lp_ctx, model,
+ lp_server_services(cmdline_lp_ctx));
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("Starting Services failed - %s\n", nt_errstr(status)));
return 1;
}
- /* wait for events */
- return event_loop_wait(srv_ctx->events);
+ /* wait for events - this is where smbd sits for most of its
+ life */
+ event_loop_wait(event_ctx);
+
+ /* as everything hangs off this event context, freeing it
+ should initiate a clean shutdown of all services */
+ talloc_free(event_ctx);
+
+ return 0;
}
int main(int argc, const char *argv[])
{
- return binary_smbd_main(argc, argv);
+ return binary_smbd_main("smbd", argc, argv);
}
git.samba.org / ira / wip.git / blobdiff