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12e41d03 1/*
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2 * PIM for Quagga
3 * Copyright (C) 2008 Everton da Silva Marques
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; see the file COPYING; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
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19
20#ifndef PIM_ASSERT_H
21#define PIM_ASSERT_H
22
23#include <zebra.h>
24
25#include "if.h"
26
27#include "pim_neighbor.h"
28#include "pim_ifchannel.h"
29
30/*
31 RFC 4601: 4.11. Timer Values
32
33 Note that for historical reasons, the Assert message lacks a
34 Holdtime field. Thus, changing the Assert Time from the default
35 value is not recommended.
36 */
37#define PIM_ASSERT_OVERRIDE_INTERVAL (3) /* seconds */
38#define PIM_ASSERT_TIME (180) /* seconds */
39
40#define PIM_ASSERT_METRIC_PREFERENCE_MAX (0xFFFFFFFF)
41#define PIM_ASSERT_ROUTE_METRIC_MAX (0xFFFFFFFF)
42
d62a17ae 43void pim_ifassert_winner_set(struct pim_ifchannel *ch,
44 enum pim_ifassert_state new_state,
45 struct in_addr winner,
46 struct pim_assert_metric winner_metric);
12e41d03 47
d62a17ae 48int pim_assert_recv(struct interface *ifp, struct pim_neighbor *neigh,
49 struct in_addr src_addr, uint8_t *buf, int buf_size);
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50
51int pim_assert_metric_better(const struct pim_assert_metric *m1,
52 const struct pim_assert_metric *m2);
53int pim_assert_metric_match(const struct pim_assert_metric *m1,
54 const struct pim_assert_metric *m2);
55
d62a17ae 56int pim_assert_build_msg(uint8_t *pim_msg, int buf_size, struct interface *ifp,
57 struct in_addr group_addr, struct in_addr source_addr,
58 uint32_t metric_preference, uint32_t route_metric,
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59 uint32_t rpt_bit_flag);
60
61int pim_assert_send(struct pim_ifchannel *ch);
62
63int assert_action_a1(struct pim_ifchannel *ch);
64void assert_action_a4(struct pim_ifchannel *ch);
65void assert_action_a5(struct pim_ifchannel *ch);
66
67#endif /* PIM_ASSERT_H */