--- /dev/null
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * SMBD RPC service callbacks
+ *
+ * Copyright (c) 2011 Andreas Schneider <asn@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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+
+#include "serverid.h"
+#include "../librpc/gen_ndr/messaging.h"
+#include "../librpc/gen_ndr/srv_epmapper.h"
+#include "rpc_server/rpc_server.h"
+
+#define DAEMON_NAME "epmd"
+
+void start_epmd(struct tevent_context *ev_ctx,
+ struct messaging_context *msg_ctx);
+
+static bool epmd_open_sockets(struct tevent_context *ev_ctx,
+ struct messaging_context *msg_ctx)
+{
+ uint32_t num_ifs = iface_count();
+ uint16_t port;
+ uint32_t i;
+
+ if (lp_interfaces() && lp_bind_interfaces_only()) {
+ /*
+ * We have been given an interfaces line, and been told to only
+ * bind to those interfaces. Create a socket per interface and
+ * bind to only these.
+ */
+
+ /* Now open a listen socket for each of the interfaces. */
+ for(i = 0; i < num_ifs; i++) {
+ const struct sockaddr_storage *ifss =
+ iface_n_sockaddr_storage(i);
+
+ port = setup_dcerpc_ncacn_tcpip_socket(ev_ctx,
+ msg_ctx,
+ ndr_table_epmapper.syntax_id,
+ ifss,
+ 135);
+ if (port == 0) {
+ return false;
+ }
+ }
+ } else {
+ const char *sock_addr = lp_socket_address();
+ const char *sock_ptr;
+ char *sock_tok;
+
+ for (sock_ptr = sock_addr;
+ next_token_talloc(talloc_tos(), &sock_ptr, &sock_tok, " \t,");
+ ) {
+ struct sockaddr_storage ss;
+
+ /* open an incoming socket */
+ if (!interpret_string_addr(&ss,
+ sock_tok,
+ AI_NUMERICHOST|AI_PASSIVE)) {
+ continue;
+ }
+
+ port = setup_dcerpc_ncacn_tcpip_socket(ev_ctx,
+ msg_ctx,
+ ndr_table_epmapper.syntax_id,
+ &ss,
+ 135);
+ if (port == 0) {
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+static void epmd_reopen_logs(void)
+{
+ char *lfile = lp_logfile();
+ int rc;
+
+ if (lfile == NULL || lfile[0] == '\0') {
+ rc = asprintf(&lfile, "%s/log.%s", get_dyn_LOGFILEBASE(), DAEMON_NAME);
+ if (rc > 0) {
+ lp_set_logfile(lfile);
+ SAFE_FREE(lfile);
+ }
+ } else {
+ if (strstr(lfile, DAEMON_NAME) == NULL) {
+ rc = asprintf(&lfile, "%s.%s", lp_logfile(), DAEMON_NAME);
+ if (rc > 0) {
+ lp_set_logfile(lfile);
+ SAFE_FREE(lfile);
+ }
+ }
+ }
+
+ reopen_logs();
+}
+
+static void epmd_smb_conf_updated(struct messaging_context *msg,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id server_id,
+ DATA_BLOB *data)
+{
+ struct tevent_context *ev_ctx =
+ talloc_get_type_abort(private_data, struct tevent_context);
+
+ DEBUG(10, ("Got message saying smb.conf was updated. Reloading.\n"));
+ change_to_root_user();
+ epmd_reopen_logs();
+}
+
+static void epmd_sig_term_handler(struct tevent_context *ev,
+ struct tevent_signal *se,
+ int signum,
+ int count,
+ void *siginfo,
+ void *private_data)
+{
+ exit_server_cleanly("termination signal");
+}
+
+static void epmd_setup_sig_term_handler(struct tevent_context *ev_ctx)
+{
+ struct tevent_signal *se;
+
+ se = tevent_add_signal(ev_ctx,
+ ev_ctx,
+ SIGTERM, 0,
+ epmd_sig_term_handler,
+ NULL);
+ if (se == NULL) {
+ exit_server("failed to setup SIGTERM handler");
+ }
+}
+
+static void epmd_sig_hup_handler(struct tevent_context *ev,
+ struct tevent_signal *se,
+ int signum,
+ int count,
+ void *siginfo,
+ void *private_data)
+{
+ struct messaging_context *msg_ctx = talloc_get_type_abort(private_data,
+ struct messaging_context);
+
+ change_to_root_user();
+
+ DEBUG(1,("Reloading printers after SIGHUP\n"));
+ epmd_reopen_logs();
+}
+
+static void epmd_setup_sig_hup_handler(struct tevent_context *ev_ctx,
+ struct messaging_context *msg_ctx)
+{
+ struct tevent_signal *se;
+
+ se = tevent_add_signal(ev_ctx,
+ ev_ctx,
+ SIGHUP, 0,
+ epmd_sig_hup_handler,
+ msg_ctx);
+ if (se == NULL) {
+ exit_server("failed to setup SIGHUP handler");
+ }
+}
+
+void start_epmd(struct tevent_context *ev_ctx,
+ struct messaging_context *msg_ctx)
+{
+ NTSTATUS status;
+ pid_t pid;
+ bool ok;
+ int rc;
+
+ DEBUG(1, ("Forking Endpoint Mapper Daemon\n"));
+
+ pid = sys_fork();
+
+ if (pid == -1) {
+ DEBUG(0, ("Failed to fork Endpoint Mapper [%s], aborting ...\n",
+ strerror(errno)));
+ exit(1);
+ }
+
+ if (pid) {
+ /* parent */
+ return;
+ }
+
+ /* child */
+ close_low_fds(false);
+
+ status = reinit_after_fork(msg_ctx,
+ ev_ctx,
+ procid_self(),
+ true);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("reinit_after_fork() failed\n"));
+ smb_panic("reinit_after_fork() failed");
+ }
+
+ epmd_reopen_logs();
+
+ epmd_setup_sig_term_handler(ev_ctx);
+ epmd_setup_sig_hup_handler(ev_ctx, msg_ctx);
+
+ ok = serverid_register(procid_self(),
+ FLAG_MSG_GENERAL|FLAG_MSG_SMBD
+ |FLAG_MSG_PRINT_GENERAL);
+ if (!ok) {
+ DEBUG(0, ("Failed to register serverid in epmd!\n"));
+ exit(1);
+ }
+
+ messaging_register(msg_ctx,
+ ev_ctx,
+ MSG_SMB_CONF_UPDATED,
+ epmd_smb_conf_updated);
+
+ status = rpc_epmapper_init(NULL);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Failed to register epmd rpc inteface! (%s)\n",
+ nt_errstr(status)));
+ exit(1);
+ }
+
+ ok = setup_dcerpc_ncalrpc_socket(ev_ctx,
+ msg_ctx,
+ ndr_table_epmapper.syntax_id,
+ "EPMAPPER");
+ if (!ok) {
+ DEBUG(0, ("Failed to open epmd ncalrpc pipe!\n"));
+ exit(1);
+ }
+
+ ok = epmd_open_sockets(ev_ctx, msg_ctx);
+ if (!ok) {
+ DEBUG(0, ("Failed to open epmd tcpip sockets!\n"));
+ exit(1);
+ }
+
+ ok = setup_named_pipe_socket("epmapper", ev_ctx);
+ if (!ok) {
+ DEBUG(0, ("Failed to open epmd named pipe!\n"));
+ exit(1);
+ }
+
+ DEBUG(1, ("Endpoint Mapper Daemon Started (%d)\n", getpid()));
+
+ /* loop forever */
+ rc = tevent_loop_wait(ev_ctx);
+
+ /* should not be reached */
+ DEBUG(0,("background_queue: tevent_loop_wait() exited with %d - %s\n",
+ rc, (rc == 0) ? "out of events" : strerror(errno)));
+
+ exit(1);
+}
+
+/* vim: set ts=8 sw=8 noet cindent ft=c.doxygen: */
git.samba.org / nivanova / samba-autobuild / .git / commitdiff