1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*
* PIM for Quagga
* Copyright (C) 2015 Cumulus Networks, Inc.
* Donald Sharp
*
* 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 2 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; see the file COPYING; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include <zebra.h>
#include "memory.h"
#include "log.h"
#include "if.h"
#include "pimd.h"
#include "pim_str.h"
#include "pim_br.h"
#include "linklist.h"
struct pim_br {
struct prefix_sg sg;
struct in_addr pmbr;
};
struct in_addr pim_br_unknown = { .s_addr = 0 };
static struct list *pim_br_list = NULL;
struct in_addr
pim_br_get_pmbr (struct prefix_sg *sg)
{
struct listnode *node;
struct pim_br *pim_br;
for (ALL_LIST_ELEMENTS_RO (pim_br_list, node, pim_br)) {
if (sg->src.s_addr == pim_br->sg.src.s_addr &&
sg->grp.s_addr == pim_br->sg.grp.s_addr)
return pim_br->pmbr;
}
return pim_br_unknown;
}
void
pim_br_set_pmbr (struct prefix_sg *sg, struct in_addr br)
{
struct listnode *node, *next;
struct pim_br *pim_br;
for (ALL_LIST_ELEMENTS (pim_br_list, node, next, pim_br)) {
if (sg->src.s_addr == pim_br->sg.src.s_addr &&
sg->grp.s_addr == pim_br->sg.grp.s_addr)
break;
}
if (!pim_br) {
pim_br = XCALLOC(MTYPE_PIM_BR, sizeof (*pim_br));
if (!pim_br) {
zlog_err("PIM XCALLOC(%zu) failure", sizeof(*pim_br));
return;
}
pim_br->sg = *sg;
listnode_add(pim_br_list, pim_br);
}
pim_br->pmbr = br;
}
/*
* Remove the (S,G) from the stored values
*/
void
pim_br_clear_pmbr (struct prefix_sg *sg)
{
struct listnode *node, *next;
struct pim_br *pim_br;
for (ALL_LIST_ELEMENTS (pim_br_list, node, next, pim_br)) {
if (sg->src.s_addr == pim_br->sg.src.s_addr &&
sg->grp.s_addr == pim_br->sg.grp.s_addr)
break;
}
if (!pim_br)
return;
listnode_delete (pim_br_list, pim_br);
}
void pim_br_init (void)
{
pim_br_list = list_new();
if (!pim_br_list) {
zlog_err("%s: Failure to create pim_br_list",
__PRETTY_FUNCTION__);
return;
}
}
|
