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/*
CTDB IP takeover code
Copyright (C) Ronnie Sahlberg 2007
Copyright (C) Andrew Tridgell 2007
Copyright (C) Martin Schwenke 2015
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/>.
*/
#ifndef __CTDB_IPALLOC_H__
#define __CTDB_IPALLOC_H__
#include <talloc.h>
#include "replace.h"
#include "system/network.h"
#include "lib/util/bitmap.h"
struct public_ip_list {
struct public_ip_list *next;
uint32_t pnn;
ctdb_sock_addr addr;
struct bitmap *known_on;
struct bitmap *available_on;
};
#define IP_KEYLEN 4
uint32_t *ip_key(ctdb_sock_addr *ip);
/* Flags used in IP allocation algorithms. */
enum ipalloc_algorithm {
IPALLOC_DETERMINISTIC,
IPALLOC_NONDETERMINISTIC,
IPALLOC_LCP2,
};
struct ipalloc_state;
struct ipalloc_state * ipalloc_state_init(TALLOC_CTX *mem_ctx,
uint32_t num_nodes,
enum ipalloc_algorithm algorithm,
bool no_ip_takeover,
bool no_ip_failback,
uint32_t *force_rebalance_nodes);
void ipalloc_set_public_ips(struct ipalloc_state *ipalloc_state,
struct ctdb_public_ip_list *known_ips,
struct ctdb_public_ip_list *available_ips);
bool ipalloc_can_host_ips(struct ipalloc_state *ipalloc_state);
struct public_ip_list *ipalloc(struct ipalloc_state *ipalloc_state);
#endif /* __CTDB_IPALLOC_H__ */
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