2 * File Server Shadow-Copy Daemon
4 * Copyright (C) David Disseldorp 2012-2015
7 * Copyright (c) 2011 Andreas Schneider <asn@samba.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
29 #include "librpc/rpc/dcerpc_ep.h"
30 #include "../librpc/gen_ndr/srv_fsrvp.h"
31 #include "rpc_server/rpc_server.h"
32 #include "rpc_server/rpc_sock_helper.h"
33 #include "rpc_server/fss/srv_fss_agent.h"
35 #define DAEMON_NAME "fssd"
37 void start_fssd(struct tevent_context *ev_ctx,
38 struct messaging_context *msg_ctx);
40 static void fssd_reopen_logs(void)
42 char *lfile = lp_logfile(NULL);
45 if (lfile == NULL || lfile[0] == '\0') {
46 rc = asprintf(&lfile, "%s/log.%s", get_dyn_LOGFILEBASE(), DAEMON_NAME);
48 lp_set_logfile(lfile);
52 if (strstr(lfile, DAEMON_NAME) == NULL) {
53 rc = asprintf(&lfile, "%s.%s", lp_logfile(NULL), DAEMON_NAME);
55 lp_set_logfile(lfile);
64 static void fssd_smb_conf_updated(struct messaging_context *msg,
67 struct server_id server_id,
70 DEBUG(10, ("Got message saying smb.conf was updated. Reloading.\n"));
71 change_to_root_user();
75 static void fssd_sig_term_handler(struct tevent_context *ev,
76 struct tevent_signal *se,
82 rpc_FileServerVssAgent_shutdown();
84 exit_server_cleanly("termination signal");
87 static void fssd_setup_sig_term_handler(struct tevent_context *ev_ctx)
89 struct tevent_signal *se;
91 se = tevent_add_signal(ev_ctx,
94 fssd_sig_term_handler,
97 exit_server("failed to setup SIGTERM handler");
101 static void fssd_sig_hup_handler(struct tevent_context *ev,
102 struct tevent_signal *se,
108 change_to_root_user();
110 DEBUG(1,("reopening logs after SIGHUP\n"));
114 static void fssd_setup_sig_hup_handler(struct tevent_context *ev_ctx,
115 struct messaging_context *msg_ctx)
117 struct tevent_signal *se;
119 se = tevent_add_signal(ev_ctx,
122 fssd_sig_hup_handler,
125 exit_server("failed to setup SIGHUP handler");
129 static bool fss_shutdown_cb(void *ptr)
135 static bool fss_init_cb(void *ptr)
138 struct messaging_context *msg_ctx;
140 msg_ctx = talloc_get_type_abort(ptr, struct messaging_context);
141 status = srv_fssa_start(msg_ctx);
142 return NT_STATUS_IS_OK(status);
145 void start_fssd(struct tevent_context *ev_ctx,
146 struct messaging_context *msg_ctx)
148 struct rpc_srv_callbacks fss_cb;
154 fss_cb.init = fss_init_cb;
155 fss_cb.shutdown = fss_shutdown_cb;
156 fss_cb.private_data = msg_ctx;
158 DEBUG(1, ("Forking File Server Shadow-copy Daemon\n"));
163 DEBUG(0, ("failed to fork file server shadow-copy daemon [%s], "
164 "aborting ...\n", strerror(errno)));
174 status = smbd_reinit_after_fork(msg_ctx, ev_ctx, true, NULL);
175 if (!NT_STATUS_IS_OK(status)) {
176 DEBUG(0,("reinit_after_fork() failed\n"));
177 smb_panic("reinit_after_fork() failed");
182 fssd_setup_sig_term_handler(ev_ctx);
183 fssd_setup_sig_hup_handler(ev_ctx, msg_ctx);
185 ok = serverid_register(messaging_server_id(msg_ctx),
187 FLAG_MSG_PRINT_GENERAL);
189 DEBUG(0, ("Failed to register serverid in fssd!\n"));
193 messaging_register(msg_ctx,
195 MSG_SMB_CONF_UPDATED,
196 fssd_smb_conf_updated);
198 status = rpc_FileServerVssAgent_init(&fss_cb);
199 if (!NT_STATUS_IS_OK(status)) {
200 DEBUG(0, ("Failed to register fssd rpc interface! (%s)\n",
205 /* case is normalized by smbd on connection */
206 ok = setup_named_pipe_socket("fssagentrpc", ev_ctx, msg_ctx);
208 DEBUG(0, ("Failed to open fssd named pipe!\n"));
212 DEBUG(1, ("File Server Shadow-copy Daemon Started (%d)\n",
216 rc = tevent_loop_wait(ev_ctx);
218 /* should not be reached */
219 DEBUG(0,("tevent_loop_wait() exited with %d - %s\n",
220 rc, (rc == 0) ? "out of events" : strerror(errno)));