]>
Commit | Line | Data |
---|---|---|
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 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 | */ | |
19 | ||
20 | #ifndef PIM_IGMP_JOIN_H | |
21 | #define PIM_IGMP_JOIN_H | |
22 | ||
23 | /* required headers #include'd by caller */ | |
24 | ||
25 | #ifndef SOL_IP | |
26 | #define SOL_IP IPPROTO_IP | |
27 | #endif | |
28 | ||
29 | #ifndef MCAST_JOIN_SOURCE_GROUP | |
30 | #define MCAST_JOIN_SOURCE_GROUP 46 | |
31 | struct group_source_req { | |
32 | uint32_t gsr_interface; | |
33 | struct sockaddr_storage gsr_group; | |
34 | struct sockaddr_storage gsr_source; | |
35 | }; | |
36 | #endif | |
37 | ||
38 | static int pim_igmp_join_source(int fd, ifindex_t ifindex, | |
39 | struct in_addr group_addr, | |
40 | struct in_addr source_addr) | |
41 | { | |
42 | struct group_source_req req; | |
43 | struct sockaddr_in group; | |
44 | struct sockaddr_in source; | |
45 | ||
46 | memset(&req, 0, sizeof(req)); | |
47 | memset(&group, 0, sizeof(group)); | |
48 | group.sin_family = AF_INET; | |
49 | group.sin_addr = group_addr; | |
50 | group.sin_port = htons(0); | |
51 | memcpy(&req.gsr_group, &group, sizeof(struct sockaddr_in)); | |
52 | ||
53 | memset(&source, 0, sizeof(source)); | |
54 | source.sin_family = AF_INET; | |
55 | source.sin_addr = source_addr; | |
56 | source.sin_port = htons(0); | |
57 | memcpy(&req.gsr_source, &source, sizeof(struct sockaddr_in)); | |
58 | ||
59 | req.gsr_interface = ifindex; | |
60 | ||
61 | return setsockopt(fd, SOL_IP, MCAST_JOIN_SOURCE_GROUP, &req, | |
62 | sizeof(req)); | |
63 | } | |
64 | ||
65 | #endif /* PIM_IGMP_JOIN_H */ |