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/*
standalone ctdb daemon
Copyright (C) Andrew Tridgell 2006
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 "lib/events/events.h"
#include "system/filesys.h"
#include "popt.h"
#include "system/wait.h"
#include "cmdline.h"
#include "../include/ctdb_private.h"
static void block_signal(int signum)
{
struct sigaction act;
memset(&act, 0, sizeof(act));
act.sa_handler = SIG_IGN;
sigemptyset(&act.sa_mask);
sigaddset(&act.sa_mask, signum);
sigaction(signum, &act, NULL);
}
static struct {
const char *nlist;
const char *transport;
const char *myaddress;
const char *public_address_list;
const char *public_interface;
const char *event_script;
const char *logfile;
const char *recovery_lock_file;
const char *db_dir;
} options = {
.nlist = ETCDIR "/ctdb/nodes",
.transport = "tcp",
.event_script = ETCDIR "/ctdb/events",
.logfile = VARDIR "/log/log.ctdb",
.db_dir = VARDIR "/ctdb",
};
/*
called by the transport layer when a packet comes in
*/
static void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length)
{
struct ctdb_req_header *hdr = (struct ctdb_req_header *)data;
ctdb->statistics.node_packets_recv++;
/* up the counter for this source node, so we know its alive */
if (ctdb_validate_vnn(ctdb, hdr->srcnode)) {
/* as a special case, redirected calls don't increment the rx_cnt */
if (hdr->operation != CTDB_REQ_CALL ||
((struct ctdb_req_call *)hdr)->hopcount == 0) {
ctdb->nodes[hdr->srcnode]->rx_cnt++;
}
}
ctdb_input_pkt(ctdb, hdr);
}
static const struct ctdb_upcalls ctdb_upcalls = {
.recv_pkt = ctdb_recv_pkt,
.node_dead = ctdb_node_dead,
.node_connected = ctdb_node_connected
};
/*
main program
*/
int main(int argc, const char *argv[])
{
struct ctdb_context *ctdb;
int interactive = 0;
struct poptOption popt_options[] = {
POPT_AUTOHELP
POPT_CTDB_CMDLINE
{ "interactive", 'i', POPT_ARG_NONE, &interactive, 0, "don't fork", NULL },
{ "public-addresses", 0, POPT_ARG_STRING, &options.public_address_list, 0, "public address list file", "filename" },
{ "public-interface", 0, POPT_ARG_STRING, &options.public_interface, 0, "public interface", "interface"},
{ "event-script", 0, POPT_ARG_STRING, &options.event_script, 0, "event script", "filename" },
{ "logfile", 0, POPT_ARG_STRING, &options.logfile, 0, "log file location", "filename" },
{ "nlist", 0, POPT_ARG_STRING, &options.nlist, 0, "node list file", "filename" },
{ "listen", 0, POPT_ARG_STRING, &options.myaddress, 0, "address to listen on", "address" },
{ "transport", 0, POPT_ARG_STRING, &options.transport, 0, "protocol transport", NULL },
{ "dbdir", 0, POPT_ARG_STRING, &options.db_dir, 0, "directory for the tdb files", NULL },
{ "reclock", 0, POPT_ARG_STRING, &options.recovery_lock_file, 0, "location of recovery lock file", "filename" },
POPT_TABLEEND
};
int opt, ret;
const char **extra_argv;
int extra_argc = 0;
poptContext pc;
struct event_context *ev;
pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
default:
fprintf(stderr, "Invalid option %s: %s\n",
poptBadOption(pc, 0), poptStrerror(opt));
exit(1);
}
}
/* setup the remaining options for the main program to use */
extra_argv = poptGetArgs(pc);
if (extra_argv) {
extra_argv++;
while (extra_argv[extra_argc]) extra_argc++;
}
if (!options.recovery_lock_file) {
DEBUG(0,("You must specifiy the location of a recovery lock file with --reclock\n"));
exit(1);
}
block_signal(SIGPIPE);
ev = s4_event_context_init(NULL);
ctdb = ctdb_cmdline_init(ev);
ctdb->recovery_mode = CTDB_RECOVERY_NORMAL;
ctdb->recovery_master = (uint32_t)-1;
ctdb->upcalls = &ctdb_upcalls;
ctdb->idr = idr_init(ctdb);
ctdb->recovery_lock_fd = -1;
ctdb->monitoring_mode = CTDB_MONITORING_ACTIVE;
ctdb_tunables_set_defaults(ctdb);
ret = ctdb_set_recovery_lock_file(ctdb, options.recovery_lock_file);
if (ret == -1) {
printf("ctdb_set_recovery_lock_file failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
ret = ctdb_set_transport(ctdb, options.transport);
if (ret == -1) {
printf("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
/* tell ctdb what address to listen on */
if (options.myaddress) {
ret = ctdb_set_address(ctdb, options.myaddress);
if (ret == -1) {
printf("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
}
/* tell ctdb what nodes are available */
ret = ctdb_set_nlist(ctdb, options.nlist);
if (ret == -1) {
printf("ctdb_set_nlist failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
if (options.db_dir) {
ret = ctdb_set_tdb_dir(ctdb, options.db_dir);
if (ret == -1) {
printf("ctdb_set_tdb_dir failed - %s\n", ctdb_errstr(ctdb));
exit(1);
}
}
ret = ctdb_set_logfile(ctdb, options.logfile);
if (ret == -1) {
printf("ctdb_set_logfile to %s failed - %s\n", options.logfile, ctdb_errstr(ctdb));
exit(1);
}
if (options.public_interface) {
ctdb->takeover.interface = talloc_strdup(ctdb, options.public_interface);
CTDB_NO_MEMORY(ctdb, ctdb->takeover.interface);
}
if (options.public_address_list) {
ret = ctdb_set_public_addresses(ctdb, options.public_address_list);
if (ret == -1) {
printf("Unable to setup public address list\n");
exit(1);
}
ctdb->takeover.enabled = true;
}
ret = ctdb_set_event_script(ctdb, options.event_script);
if (ret == -1) {
printf("Unable to setup event script\n");
exit(1);
}
/* useful default logfile */
if (ctdb->logfile == NULL) {
char *name = talloc_asprintf(ctdb, "%s/log.ctdb.vnn%u",
VARDIR, ctdb->vnn);
ctdb_set_logfile(ctdb, name);
talloc_free(name);
}
/* start the protocol running (as a child) */
return ctdb_start_daemon(ctdb, interactive?False:True);
}
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