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Unix SMB/Netbios implementation.
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Copyright (C) Simo Sorce 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include "smbd/smbd.h"
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#include "include/printing.h"
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#include "printing/nt_printing_migrate_internal.h"
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#include "librpc/gen_ndr/srv_winreg.h"
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#include "librpc/gen_ndr/srv_spoolss.h"
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#include "rpc_server/rpc_server.h"
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#include "rpc_server/rpc_ep_setup.h"
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#include "rpc_server/spoolss/srv_spoolss_nt.h"
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#define SPOOLSS_PIPE_NAME "spoolss"
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#define DAEMON_NAME "spoolssd"
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void start_spoolssd(struct tevent_context *ev_ctx,
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struct messaging_context *msg_ctx);
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static void spoolss_reopen_logs(void)
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char *lfile = lp_logfile();
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if (lfile == NULL || lfile[0] == '\0') {
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rc = asprintf(&lfile, "%s/log.%s", get_dyn_LOGFILEBASE(), DAEMON_NAME);
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lp_set_logfile(lfile);
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if (strstr(lfile, DAEMON_NAME) == NULL) {
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rc = asprintf(&lfile, "%s.%s", lp_logfile(), DAEMON_NAME);
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lp_set_logfile(lfile);
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static void smb_conf_updated(struct messaging_context *msg,
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struct server_id server_id,
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struct tevent_context *ev_ctx = talloc_get_type_abort(private_data,
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struct tevent_context);
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DEBUG(10, ("Got message saying smb.conf was updated. Reloading.\n"));
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change_to_root_user();
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reload_printers(ev_ctx, msg);
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spoolss_reopen_logs();
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static void spoolss_sig_term_handler(struct tevent_context *ev,
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struct tevent_signal *se,
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exit_server_cleanly("termination signal");
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static void spoolss_setup_sig_term_handler(struct tevent_context *ev_ctx)
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struct tevent_signal *se;
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se = tevent_add_signal(ev_ctx,
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spoolss_sig_term_handler,
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exit_server("failed to setup SIGTERM handler");
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static void spoolss_sig_hup_handler(struct tevent_context *ev,
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struct tevent_signal *se,
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struct messaging_context *msg_ctx = talloc_get_type_abort(private_data,
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struct messaging_context);
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change_to_root_user();
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DEBUG(1,("Reloading printers after SIGHUP\n"));
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reload_printers(ev, msg_ctx);
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spoolss_reopen_logs();
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static void spoolss_setup_sig_hup_handler(struct tevent_context *ev_ctx,
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struct messaging_context *msg_ctx)
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struct tevent_signal *se;
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se = tevent_add_signal(ev_ctx,
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spoolss_sig_hup_handler,
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exit_server("failed to setup SIGHUP handler");
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static bool spoolss_init_cb(void *ptr)
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struct messaging_context *msg_ctx = talloc_get_type_abort(
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ptr, struct messaging_context);
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return nt_printing_tdb_migrate(msg_ctx);
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static bool spoolss_shutdown_cb(void *ptr)
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srv_spoolss_cleanup();
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void start_spoolssd(struct tevent_context *ev_ctx,
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struct messaging_context *msg_ctx)
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struct rpc_srv_callbacks spoolss_cb;
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DEBUG(1, ("Forking SPOOLSS Daemon\n"));
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DEBUG(0, ("Failed to fork SPOOLSS [%s], aborting ...\n",
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close_low_fds(false);
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status = reinit_after_fork(msg_ctx,
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procid_self(), true);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0,("reinit_after_fork() failed\n"));
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smb_panic("reinit_after_fork() failed");
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spoolss_reopen_logs();
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spoolss_setup_sig_term_handler(ev_ctx);
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spoolss_setup_sig_hup_handler(ev_ctx, msg_ctx);
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if (!serverid_register(procid_self(),
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FLAG_MSG_GENERAL|FLAG_MSG_SMBD
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|FLAG_MSG_PRINT_GENERAL)) {
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if (!locking_init()) {
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messaging_register(msg_ctx, NULL,
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MSG_PRINTER_UPDATE, print_queue_receive);
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messaging_register(msg_ctx, ev_ctx,
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MSG_SMB_CONF_UPDATED, smb_conf_updated);
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* Initialize spoolss with an init function to convert printers first.
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* static_init_rpc will try to initialize the spoolss server too but you
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* can't register it twice.
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spoolss_cb.init = spoolss_init_cb;
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spoolss_cb.shutdown = spoolss_shutdown_cb;
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spoolss_cb.private_data = msg_ctx;
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status = rpc_winreg_init(NULL);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0, ("Failed to register winreg rpc inteface! (%s)\n",
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status = rpc_spoolss_init(&spoolss_cb);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0, ("Failed to register spoolss rpc inteface! (%s)\n",
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if (!setup_named_pipe_socket(SPOOLSS_PIPE_NAME, ev_ctx)) {
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status = rpc_ep_setup_register(ev_ctx, msg_ctx, &ndr_table_spoolss, NULL, 0);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(0, ("Failed to register spoolss endpoint! (%s)\n",
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DEBUG(1, ("SPOOLSS Daemon Started (%d)\n", getpid()));
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ret = tevent_loop_wait(ev_ctx);
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/* should not be reached */
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DEBUG(0,("background_queue: tevent_loop_wait() exited with %d - %s\n",
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ret, (ret == 0) ? "out of events" : strerror(errno)));