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- /*
- PIM for Quagga
- Copyright (C) 2008 Everton da Silva Marques
- 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
-
- $QuaggaId: $Format:%an, %ai, %h$ $
- */
- #include <zebra.h>
- #include <sys/types.h>
- #include <sys/socket.h>
- #include <string.h>
- #include "zebra.h"
- #include "pim_igmp_join.h"
- #ifndef SOL_IP
- #define SOL_IP IPPROTO_IP
- #endif
- #ifndef MCAST_JOIN_SOURCE_GROUP
- #define MCAST_JOIN_SOURCE_GROUP 46
- struct group_source_req
- {
- uint32_t gsr_interface;
- struct sockaddr_storage gsr_group;
- struct sockaddr_storage gsr_source;
- };
- #endif
- int pim_igmp_join_source(int fd, ifindex_t ifindex,
- struct in_addr group_addr,
- struct in_addr source_addr)
- {
- struct group_source_req req;
- struct sockaddr_in group;
- struct sockaddr_in source;
- memset(&group, 0, sizeof(group));
- group.sin_family = AF_INET;
- group.sin_addr = group_addr;
- group.sin_port = htons(0);
- memcpy(&req.gsr_group, &group, sizeof(struct sockaddr_in));
- memset(&source, 0, sizeof(source));
- source.sin_family = AF_INET;
- source.sin_addr = source_addr;
- source.sin_port = htons(0);
- memcpy(&req.gsr_source, &source, sizeof(struct sockaddr_in));
- req.gsr_interface = ifindex;
- return setsockopt(fd, SOL_IP, MCAST_JOIN_SOURCE_GROUP,
- &req, sizeof(req));
- return 0;
- }
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