mirror of
https://github.com/samba-team/samba.git
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66c8d4fb3d
(This used to be ctdb commit 866aa995dc029db6e510060e9e95a8ca149094ac)
327 lines
10 KiB
C
327 lines
10 KiB
C
/*
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standalone ctdb daemon
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Copyright (C) Andrew Tridgell 2006
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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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*/
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#include "includes.h"
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#include "lib/events/events.h"
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#include "system/filesys.h"
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#include "popt.h"
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#include "system/time.h"
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#include "system/wait.h"
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#include "system/network.h"
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#include "cmdline.h"
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#include "../include/ctdb_private.h"
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static struct {
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const char *nlist;
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const char *transport;
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const char *myaddress;
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const char *public_address_list;
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const char *event_script_dir;
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const char *notification_script;
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const char *logfile;
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const char *recovery_lock_file;
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const char *db_dir;
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const char *db_dir_persistent;
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const char *public_interface;
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const char *single_public_ip;
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const char *node_ip;
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int no_setsched;
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int use_syslog;
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int start_as_disabled;
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int start_as_stopped;
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int no_lmaster;
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int no_recmaster;
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int lvs;
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int script_log_level;
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int no_publicipcheck;
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} options = {
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.nlist = ETCDIR "/ctdb/nodes",
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.transport = "tcp",
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.event_script_dir = ETCDIR "/ctdb/events.d",
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.logfile = LOGDIR "/log.ctdb",
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.db_dir = VARDIR "/ctdb",
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.db_dir_persistent = VARDIR "/ctdb/persistent",
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.script_log_level = DEBUG_ERR,
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};
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int script_log_level;
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/*
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called by the transport layer when a packet comes in
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*/
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static void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length)
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{
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struct ctdb_req_header *hdr = (struct ctdb_req_header *)data;
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ctdb->statistics.node_packets_recv++;
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/* up the counter for this source node, so we know its alive */
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if (ctdb_validate_pnn(ctdb, hdr->srcnode)) {
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/* as a special case, redirected calls don't increment the rx_cnt */
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if (hdr->operation != CTDB_REQ_CALL ||
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((struct ctdb_req_call *)hdr)->hopcount == 0) {
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ctdb->nodes[hdr->srcnode]->rx_cnt++;
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}
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}
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ctdb_input_pkt(ctdb, hdr);
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}
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void ctdb_load_nodes_file(struct ctdb_context *ctdb)
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{
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int ret;
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ret = ctdb_set_nlist(ctdb, options.nlist);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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}
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static const struct ctdb_upcalls ctdb_upcalls = {
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.recv_pkt = ctdb_recv_pkt,
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.node_dead = ctdb_node_dead,
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.node_connected = ctdb_node_connected
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};
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/*
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main program
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*/
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int main(int argc, const char *argv[])
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{
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struct ctdb_context *ctdb;
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int interactive = 0;
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struct poptOption popt_options[] = {
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POPT_AUTOHELP
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POPT_CTDB_CMDLINE
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{ "interactive", 'i', POPT_ARG_NONE, &interactive, 0, "don't fork", NULL },
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{ "public-addresses", 0, POPT_ARG_STRING, &options.public_address_list, 0, "public address list file", "filename" },
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{ "public-interface", 0, POPT_ARG_STRING, &options.public_interface, 0, "public interface", "interface"},
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{ "single-public-ip", 0, POPT_ARG_STRING, &options.single_public_ip, 0, "single public ip", "ip-address"},
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{ "event-script-dir", 0, POPT_ARG_STRING, &options.event_script_dir, 0, "event script directory", "dirname" },
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{ "logfile", 0, POPT_ARG_STRING, &options.logfile, 0, "log file location", "filename" },
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{ "nlist", 0, POPT_ARG_STRING, &options.nlist, 0, "node list file", "filename" },
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{ "node-ip", 0, POPT_ARG_STRING, &options.node_ip, 0, "node ip", "ip-address"},
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{ "notification-script", 0, POPT_ARG_STRING, &options.notification_script, 0, "notification script", "filename" },
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{ "listen", 0, POPT_ARG_STRING, &options.myaddress, 0, "address to listen on", "address" },
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{ "transport", 0, POPT_ARG_STRING, &options.transport, 0, "protocol transport", NULL },
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{ "dbdir", 0, POPT_ARG_STRING, &options.db_dir, 0, "directory for the tdb files", NULL },
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{ "dbdir-persistent", 0, POPT_ARG_STRING, &options.db_dir_persistent, 0, "directory for persistent tdb files", NULL },
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{ "reclock", 0, POPT_ARG_STRING, &options.recovery_lock_file, 0, "location of recovery lock file", "filename" },
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{ "nosetsched", 0, POPT_ARG_NONE, &options.no_setsched, 0, "disable setscheduler SCHED_FIFO call", NULL },
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{ "syslog", 0, POPT_ARG_NONE, &options.use_syslog, 0, "log messages to syslog", NULL },
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{ "start-as-disabled", 0, POPT_ARG_NONE, &options.start_as_disabled, 0, "Node starts in disabled state", NULL },
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{ "start-as-stopped", 0, POPT_ARG_NONE, &options.start_as_stopped, 0, "Node starts in stopped state", NULL },
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{ "no-lmaster", 0, POPT_ARG_NONE, &options.no_lmaster, 0, "disable lmaster role on this node", NULL },
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{ "no-recmaster", 0, POPT_ARG_NONE, &options.no_recmaster, 0, "disable recmaster role on this node", NULL },
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{ "lvs", 0, POPT_ARG_NONE, &options.lvs, 0, "lvs is enabled on this node", NULL },
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{ "script-log-level", 0, POPT_ARG_INT, &options.script_log_level, DEBUG_ERR, "log level of event script output", NULL },
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{ "nopublicipcheck", 0, POPT_ARG_NONE, &options.no_publicipcheck, 0, "dont check we have/dont have the correct public ip addresses", NULL },
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POPT_TABLEEND
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};
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int opt, ret;
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const char **extra_argv;
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int extra_argc = 0;
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poptContext pc;
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struct event_context *ev;
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pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
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while ((opt = poptGetNextOpt(pc)) != -1) {
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switch (opt) {
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default:
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fprintf(stderr, "Invalid option %s: %s\n",
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poptBadOption(pc, 0), poptStrerror(opt));
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exit(1);
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}
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}
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/* setup the remaining options for the main program to use */
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extra_argv = poptGetArgs(pc);
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if (extra_argv) {
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extra_argv++;
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while (extra_argv[extra_argc]) extra_argc++;
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}
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talloc_enable_null_tracking();
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ctdb_block_signal(SIGPIPE);
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ev = event_context_init(NULL);
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ctdb = ctdb_cmdline_init(ev);
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ctdb->start_as_disabled = options.start_as_disabled;
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ctdb->start_as_stopped = options.start_as_stopped;
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script_log_level = options.script_log_level;
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ret = ctdb_set_logfile(ctdb, options.logfile, options.use_syslog);
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if (ret == -1) {
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printf("ctdb_set_logfile to %s failed - %s\n",
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options.use_syslog?"syslog":options.logfile, ctdb_errstr(ctdb));
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exit(1);
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}
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DEBUG(DEBUG_NOTICE,("Starting CTDB daemon\n"));
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gettimeofday(&ctdb->ctdbd_start_time, NULL);
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gettimeofday(&ctdb->last_recovery_started, NULL);
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gettimeofday(&ctdb->last_recovery_finished, NULL);
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ctdb->recovery_mode = CTDB_RECOVERY_NORMAL;
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ctdb->recovery_master = (uint32_t)-1;
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ctdb->upcalls = &ctdb_upcalls;
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ctdb->idr = idr_init(ctdb);
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ctdb->recovery_lock_fd = -1;
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ctdb_tunables_set_defaults(ctdb);
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ret = ctdb_set_recovery_lock_file(ctdb, options.recovery_lock_file);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_recovery_lock_file failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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ret = ctdb_set_transport(ctdb, options.transport);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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/* tell ctdb what address to listen on */
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if (options.myaddress) {
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ret = ctdb_set_address(ctdb, options.myaddress);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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}
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/* set ctdbd capabilities */
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ctdb->capabilities = 0;
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if (options.no_lmaster == 0) {
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ctdb->capabilities |= CTDB_CAP_LMASTER;
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}
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if (options.no_recmaster == 0) {
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ctdb->capabilities |= CTDB_CAP_RECMASTER;
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}
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if (options.lvs != 0) {
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ctdb->capabilities |= CTDB_CAP_LVS;
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}
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/* tell ctdb what nodes are available */
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ctdb_load_nodes_file(ctdb);
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/* if a node-ip was specified, verify that it exists in the
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nodes file
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*/
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if (options.node_ip != NULL) {
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DEBUG(DEBUG_NOTICE,("IP for this node is %s\n", options.node_ip));
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ret = ctdb_ip_to_nodeid(ctdb, options.node_ip);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("The specified node-ip:%s is not a valid node address. Exiting.\n", options.node_ip));
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exit(1);
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}
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ctdb->node_ip = options.node_ip;
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DEBUG(DEBUG_NOTICE,("This is node %d\n", ret));
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}
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if (options.db_dir) {
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ret = ctdb_set_tdb_dir(ctdb, options.db_dir);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_tdb_dir failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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}
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if (options.db_dir_persistent) {
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ret = ctdb_set_tdb_dir_persistent(ctdb, options.db_dir_persistent);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("ctdb_set_tdb_dir_persistent failed - %s\n", ctdb_errstr(ctdb)));
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exit(1);
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}
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}
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if (options.public_interface) {
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ctdb->default_public_interface = talloc_strdup(ctdb, options.public_interface);
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CTDB_NO_MEMORY(ctdb, ctdb->default_public_interface);
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}
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if (options.single_public_ip) {
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struct ctdb_vnn *svnn;
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if (options.public_interface == NULL) {
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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"));
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exit(10);
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}
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svnn = talloc_zero(ctdb, struct ctdb_vnn);
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CTDB_NO_MEMORY(ctdb, svnn);
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ctdb->single_ip_vnn = svnn;
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svnn->iface = talloc_strdup(svnn, options.public_interface);
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CTDB_NO_MEMORY(ctdb, svnn->iface);
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if (parse_ip(options.single_public_ip,
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svnn->iface,
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0,
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&svnn->public_address) == 0) {
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DEBUG(DEBUG_ALERT,("Invalid --single-public-ip argument : %s . This is not a valid ip address. Exiting.\n", options.single_public_ip));
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exit(10);
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}
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}
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if (options.public_address_list) {
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ret = ctdb_set_public_addresses(ctdb, options.public_address_list);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("Unable to setup public address list\n"));
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exit(1);
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}
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}
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ret = ctdb_set_event_script_dir(ctdb, options.event_script_dir);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("Unable to setup event script directory\n"));
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exit(1);
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}
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if (options.notification_script != NULL) {
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ret = ctdb_set_notification_script(ctdb, options.notification_script);
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if (ret == -1) {
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DEBUG(DEBUG_ALERT,("Unable to setup notification script\n"));
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exit(1);
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}
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}
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ctdb->do_setsched = !options.no_setsched;
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ctdb->do_checkpublicip = !options.no_publicipcheck;
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if (getenv("CTDB_BASE") == NULL) {
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/* setup a environment variable for the event scripts to use
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to find the installation directory */
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setenv("CTDB_BASE", ETCDIR "/ctdb", 1);
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}
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/* start the protocol running (as a child) */
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return ctdb_start_daemon(ctdb, interactive?False:True);
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}
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