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12e41d03 DL |
1 | /* |
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 | |
16 | along with this program; see the file COPYING; if not, write to the | |
17 | Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, | |
18 | MA 02110-1301 USA | |
12e41d03 DL |
19 | */ |
20 | ||
21 | #ifndef PIM_ASSERT_H | |
22 | #define PIM_ASSERT_H | |
23 | ||
24 | #include <zebra.h> | |
25 | ||
26 | #include "if.h" | |
27 | ||
28 | #include "pim_neighbor.h" | |
29 | #include "pim_ifchannel.h" | |
30 | ||
31 | /* | |
32 | RFC 4601: 4.11. Timer Values | |
33 | ||
34 | Note that for historical reasons, the Assert message lacks a | |
35 | Holdtime field. Thus, changing the Assert Time from the default | |
36 | value is not recommended. | |
37 | */ | |
38 | #define PIM_ASSERT_OVERRIDE_INTERVAL (3) /* seconds */ | |
39 | #define PIM_ASSERT_TIME (180) /* seconds */ | |
40 | ||
41 | #define PIM_ASSERT_METRIC_PREFERENCE_MAX (0xFFFFFFFF) | |
42 | #define PIM_ASSERT_ROUTE_METRIC_MAX (0xFFFFFFFF) | |
43 | ||
44 | void pim_ifassert_winner_set(struct pim_ifchannel *ch, | |
45 | enum pim_ifassert_state new_state, | |
46 | struct in_addr winner, | |
47 | struct pim_assert_metric winner_metric); | |
48 | ||
49 | int pim_assert_recv(struct interface *ifp, | |
50 | struct pim_neighbor *neigh, | |
51 | struct in_addr src_addr, | |
52 | uint8_t *buf, int buf_size); | |
53 | ||
54 | int pim_assert_metric_better(const struct pim_assert_metric *m1, | |
55 | const struct pim_assert_metric *m2); | |
56 | int pim_assert_metric_match(const struct pim_assert_metric *m1, | |
57 | const struct pim_assert_metric *m2); | |
58 | ||
59 | int pim_assert_build_msg(uint8_t *pim_msg, int buf_size, | |
60 | struct interface *ifp, | |
61 | struct in_addr group_addr, | |
62 | struct in_addr source_addr, | |
63 | uint32_t metric_preference, | |
64 | uint32_t route_metric, | |
65 | uint32_t rpt_bit_flag); | |
66 | ||
67 | int pim_assert_send(struct pim_ifchannel *ch); | |
68 | ||
69 | int assert_action_a1(struct pim_ifchannel *ch); | |
70 | void assert_action_a4(struct pim_ifchannel *ch); | |
71 | void assert_action_a5(struct pim_ifchannel *ch); | |
72 | ||
73 | #endif /* PIM_ASSERT_H */ |