4 Copyright (C) Andrew Tridgell 2006
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, see <http://www.gnu.org/licenses/>.
21 #include "lib/events/events.h"
22 #include "system/filesys.h"
24 #include "system/time.h"
25 #include "system/wait.h"
26 #include "system/network.h"
28 #include "../include/ctdb_private.h"
32 const char *transport;
33 const char *myaddress;
34 const char *public_address_list;
35 const char *event_script_dir;
37 const char *recovery_lock_file;
39 const char *db_dir_persistent;
40 const char *public_interface;
41 const char *single_public_ip;
45 int start_as_disabled;
47 .nlist = ETCDIR "/ctdb/nodes",
49 .event_script_dir = ETCDIR "/ctdb/events.d",
50 .logfile = VARDIR "/log/log.ctdb",
51 .db_dir = VARDIR "/ctdb",
52 .db_dir_persistent = VARDIR "/ctdb/persistent",
57 called by the transport layer when a packet comes in
59 static void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length)
61 struct ctdb_req_header *hdr = (struct ctdb_req_header *)data;
63 ctdb->statistics.node_packets_recv++;
65 /* up the counter for this source node, so we know its alive */
66 if (ctdb_validate_pnn(ctdb, hdr->srcnode)) {
67 /* as a special case, redirected calls don't increment the rx_cnt */
68 if (hdr->operation != CTDB_REQ_CALL ||
69 ((struct ctdb_req_call *)hdr)->hopcount == 0) {
70 ctdb->nodes[hdr->srcnode]->rx_cnt++;
74 ctdb_input_pkt(ctdb, hdr);
77 void ctdb_load_nodes_file(struct ctdb_context *ctdb)
81 ret = ctdb_set_nlist(ctdb, options.nlist);
83 DEBUG(DEBUG_ALERT,("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb)));
88 static const struct ctdb_upcalls ctdb_upcalls = {
89 .recv_pkt = ctdb_recv_pkt,
90 .node_dead = ctdb_node_dead,
91 .node_connected = ctdb_node_connected
99 int main(int argc, const char *argv[])
101 struct ctdb_context *ctdb;
104 struct poptOption popt_options[] = {
107 { "interactive", 'i', POPT_ARG_NONE, &interactive, 0, "don't fork", NULL },
108 { "public-addresses", 0, POPT_ARG_STRING, &options.public_address_list, 0, "public address list file", "filename" },
109 { "public-interface", 0, POPT_ARG_STRING, &options.public_interface, 0, "public interface", "interface"},
110 { "single-public-ip", 0, POPT_ARG_STRING, &options.single_public_ip, 0, "single public ip", "ip-address"},
111 { "event-script-dir", 0, POPT_ARG_STRING, &options.event_script_dir, 0, "event script directory", "dirname" },
112 { "logfile", 0, POPT_ARG_STRING, &options.logfile, 0, "log file location", "filename" },
113 { "nlist", 0, POPT_ARG_STRING, &options.nlist, 0, "node list file", "filename" },
114 { "node-ip", 0, POPT_ARG_STRING, &options.node_ip, 0, "node ip", "ip-address"},
115 { "listen", 0, POPT_ARG_STRING, &options.myaddress, 0, "address to listen on", "address" },
116 { "transport", 0, POPT_ARG_STRING, &options.transport, 0, "protocol transport", NULL },
117 { "dbdir", 0, POPT_ARG_STRING, &options.db_dir, 0, "directory for the tdb files", NULL },
118 { "dbdir-persistent", 0, POPT_ARG_STRING, &options.db_dir_persistent, 0, "directory for persistent tdb files", NULL },
119 { "reclock", 0, POPT_ARG_STRING, &options.recovery_lock_file, 0, "location of recovery lock file", "filename" },
120 { "nosetsched", 0, POPT_ARG_NONE, &options.no_setsched, 0, "disable setscheduler SCHED_FIFO call", NULL },
121 { "syslog", 0, POPT_ARG_NONE, &options.use_syslog, 0, "log messages to syslog", NULL },
122 { "start-as-disabled", 0, POPT_ARG_NONE, &options.start_as_disabled, 0, "Node starts in disabled state", NULL },
126 const char **extra_argv;
129 struct event_context *ev;
131 pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
133 while ((opt = poptGetNextOpt(pc)) != -1) {
136 fprintf(stderr, "Invalid option %s: %s\n",
137 poptBadOption(pc, 0), poptStrerror(opt));
142 /* setup the remaining options for the main program to use */
143 extra_argv = poptGetArgs(pc);
146 while (extra_argv[extra_argc]) extra_argc++;
149 if (!options.recovery_lock_file) {
150 DEBUG(DEBUG_ALERT,("You must specifiy the location of a recovery lock file with --reclock\n"));
154 talloc_enable_null_tracking();
156 ctdb_block_signal(SIGPIPE);
158 ev = event_context_init(NULL);
160 ctdb = ctdb_cmdline_init(ev);
162 ctdb->start_as_disabled = options.start_as_disabled;
164 ret = ctdb_set_logfile(ctdb, options.logfile, options.use_syslog);
166 printf("ctdb_set_logfile to %s failed - %s\n",
167 options.use_syslog?"syslog":options.logfile, ctdb_errstr(ctdb));
171 DEBUG(DEBUG_NOTICE,("Starting CTDB daemon\n"));
172 gettimeofday(&ctdb->ctdbd_start_time, NULL);
173 gettimeofday(&ctdb->last_recovery_time, NULL);
174 ctdb->recovery_mode = CTDB_RECOVERY_NORMAL;
175 ctdb->recovery_master = (uint32_t)-1;
176 ctdb->upcalls = &ctdb_upcalls;
177 ctdb->idr = idr_init(ctdb);
178 ctdb->recovery_lock_fd = -1;
180 ctdb_tunables_set_defaults(ctdb);
182 ret = ctdb_set_recovery_lock_file(ctdb, options.recovery_lock_file);
184 DEBUG(DEBUG_ALERT,("ctdb_set_recovery_lock_file failed - %s\n", ctdb_errstr(ctdb)));
188 ret = ctdb_set_transport(ctdb, options.transport);
190 DEBUG(DEBUG_ALERT,("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb)));
194 /* tell ctdb what address to listen on */
195 if (options.myaddress) {
196 ret = ctdb_set_address(ctdb, options.myaddress);
198 DEBUG(DEBUG_ALERT,("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb)));
203 /* set ctdbd capabilities */
204 /* We can be an lmaster, we can also be a recmaster */
205 ctdb->capabilities = CTDB_CAP_LMASTER | CTDB_CAP_RECMASTER;
207 /* tell ctdb what nodes are available */
208 ctdb_load_nodes_file(ctdb);
210 /* if a node-ip was specified, verify that it exists in the
213 if (options.node_ip != NULL) {
214 DEBUG(DEBUG_NOTICE,("IP for this node is %s\n", options.node_ip));
215 ret = ctdb_ip_to_nodeid(ctdb, options.node_ip);
217 DEBUG(DEBUG_ALERT,("The specified node-ip:%s is not a valid node address. Exiting.\n", options.node_ip));
220 ctdb->node_ip = options.node_ip;
221 DEBUG(DEBUG_NOTICE,("This is node %d\n", ret));
224 if (options.db_dir) {
225 ret = ctdb_set_tdb_dir(ctdb, options.db_dir);
227 DEBUG(DEBUG_ALERT,("ctdb_set_tdb_dir failed - %s\n", ctdb_errstr(ctdb)));
231 if (options.db_dir_persistent) {
232 ret = ctdb_set_tdb_dir_persistent(ctdb, options.db_dir_persistent);
234 DEBUG(DEBUG_ALERT,("ctdb_set_tdb_dir_persistent failed - %s\n", ctdb_errstr(ctdb)));
239 if (options.public_interface) {
240 ctdb->default_public_interface = talloc_strdup(ctdb, options.public_interface);
241 CTDB_NO_MEMORY(ctdb, ctdb->default_public_interface);
244 if (options.single_public_ip) {
245 struct ctdb_vnn *svnn;
247 if (options.public_interface == NULL) {
248 DEBUG(DEBUG_ALERT,("--single_public_ip used but --public_interface is not specified. You must specify the public interface when using single public ip. Exiting\n"));
252 svnn = talloc_zero(ctdb, struct ctdb_vnn);
253 CTDB_NO_MEMORY(ctdb, svnn);
255 ctdb->single_ip_vnn = svnn;
256 svnn->iface = talloc_strdup(svnn, options.public_interface);
257 CTDB_NO_MEMORY(ctdb, svnn->iface);
259 if (inet_aton(options.single_public_ip,
260 &svnn->public_address.sin_addr) == 0) {
261 DEBUG(DEBUG_ALERT,("Invalid --single-public-ip argument : %s . This is not a valid ip address. Exiting.\n", options.single_public_ip));
264 svnn->public_address.sin_family = AF_INET;
265 svnn->public_address.sin_port = 0;
268 if (options.public_address_list) {
269 ret = ctdb_set_public_addresses(ctdb, options.public_address_list);
271 DEBUG(DEBUG_ALERT,("Unable to setup public address list\n"));
276 ret = ctdb_set_event_script_dir(ctdb, options.event_script_dir);
278 DEBUG(DEBUG_ALERT,("Unable to setup event script directory\n"));
282 ctdb->do_setsched = !options.no_setsched;
284 /* setup a environment variable for the event scripts to use to find the
285 installation directory */
286 setenv("CTDB_BASE", ETCDIR "/ctdb", 1);
288 /* start the protocol running (as a child) */
289 return ctdb_start_daemon(ctdb, interactive?False:True);