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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
19
20 $QuaggaId: $Format:%an, %ai, %h$ $
21*/
22
23#ifndef PIM_OIL_H
24#define PIM_OIL_H
25
26#include "pim_mroute.h"
27
0fba6e63
DS
28/*
29 * Where did we get this (S,G) from?
30 *
31 * IGMP - Learned from IGMP
32 * PIM - Learned from PIM
33 * SOURCE - Learned from Source multicast packet received
34 */
35#define PIM_OIF_FLAG_PROTO_IGMP (1 << 0)
36#define PIM_OIF_FLAG_PROTO_PIM (1 << 1)
37#define PIM_OIF_FLAG_PROTO_SOURCE (2 << 1)
38#define PIM_OIF_FLAG_PROTO_ANY (PIM_OIF_FLAG_PROTO_IGMP | \
39 PIM_OIF_FLAG_PROTO_PIM | \
40 PIM_OIF_FLAG_PROTO_SOURCE)
12e41d03 41
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42/*
43 * We need a pimreg vif id from the kernel.
44 * Since ifindex == vif id for most cases and the number
45 * of expected interfaces is at most 100, using MAXVIFS -1
46 * is probably ok.
47 * Don't come running to me if this assumption is bad,
48 * fix it.
49 */
50#define PIM_OIF_PIM_REGISTER_VIF (MAXVIFS - 1)
51#define PIM_MAX_USABLE_VIFS (MAXVIFS - 2)
52
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53
54struct channel_counts
55{
56 unsigned long pktcnt;
57 unsigned long oldpktcnt;
58 unsigned long bytecnt;
59 unsigned long oldbytecnt;
60 unsigned long wrong_if;
61 unsigned long oldwrong_if;
62};
63
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64/*
65 qpim_channel_oil_list holds a list of struct channel_oil.
66
67 Each channel_oil.oil is used to control an (S,G) entry in the Kernel
68 Multicast Forwarding Cache.
69*/
70
71struct channel_oil {
72 struct mfcctl oil;
58302dc7 73 int installed;
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74 int oil_size;
75 int oil_ref_count;
76 time_t oif_creation[MAXVIFS];
77 uint32_t oif_flags[MAXVIFS];
3667e8a0 78 struct channel_counts cc;
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79};
80
81void pim_channel_oil_free(struct channel_oil *c_oil);
82struct channel_oil *pim_channel_oil_add(struct in_addr group_addr,
83 struct in_addr source_addr,
84 int input_vif_index);
85void pim_channel_oil_del(struct channel_oil *c_oil);
86
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87int pim_channel_add_oif(struct channel_oil *c_oil,
88 struct interface *oif,
89 uint32_t proto_mask);
90
12e41d03 91#endif /* PIM_OIL_H */