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-rw-r--r--ctdb/server/ipalloc.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/ctdb/server/ipalloc.h b/ctdb/server/ipalloc.h
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+++ b/ctdb/server/ipalloc.h
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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__ */