diff --git a/pimd/pim_igmpv3.h b/pimd/pim_igmpv3.h
new file mode 100644
index 0000000..bb7e926
--- /dev/null
+++ b/pimd/pim_igmpv3.h
@@ -0,0 +1,100 @@
+/*
+  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: $Format:%an, %ai, %h$ $
+*/
+
+#ifndef PIM_IGMPV3_H
+#define PIM_IGMPV3_H
+
+#include <zebra.h>
+#include "if.h"
+
+#define IGMP_V3_CHECKSUM_OFFSET            (2)
+#define IGMP_V3_REPORT_NUMGROUPS_OFFSET    (6)
+#define IGMP_V3_REPORT_GROUPPRECORD_OFFSET (8)
+#define IGMP_V3_NUMSOURCES_OFFSET          (10)
+#define IGMP_V3_SOURCES_OFFSET             (12)
+
+/* GMI: Group Membership Interval */
+#define PIM_IGMP_GMI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * (qri_dsec))
+
+/* OQPI: Other Querier Present Interval */
+#define PIM_IGMP_OQPI_MSEC(qrv,qqi,qri_dsec) ((qrv) * (1000 * (qqi)) + 100 * ((qri_dsec) >> 1))
+
+/* SQI: Startup Query Interval */
+#define PIM_IGMP_SQI(qi) (((qi) < 4) ? 1 : ((qi) >> 2))
+
+/* LMQT: Last Member Query Time */
+#define PIM_IGMP_LMQT_MSEC(lmqi_dsec, lmqc) ((lmqc) * (100 * (lmqi_dsec)))
+
+/* OHPI: Older Host Present Interval */
+#define PIM_IGMP_OHPI_DSEC(qrv,qqi,qri_dsec) ((qrv) * (10 * (qqi)) + (qri_dsec))
+
+void igmp_group_reset_gmi(struct igmp_group *group);
+void igmp_source_reset_gmi(struct igmp_sock *igmp,
+			   struct igmp_group *group,
+			   struct igmp_source *source);
+
+void igmp_source_free(struct igmp_source *source);
+void igmp_source_delete(struct igmp_source *source);
+void igmp_source_delete_expired(struct list *source_list);
+
+int igmp_group_compat_mode(const struct igmp_sock *igmp,
+			   const struct igmp_group *group);
+
+void igmpv3_report_isin(struct igmp_sock *igmp, struct in_addr from,
+			struct in_addr group_addr,
+			int num_sources, struct in_addr *sources);
+void igmpv3_report_isex(struct igmp_sock *igmp, struct in_addr from,
+			struct in_addr group_addr,
+			int num_sources, struct in_addr *sources);
+void igmpv3_report_toin(struct igmp_sock *igmp, struct in_addr from,
+			struct in_addr group_addr,
+			int num_sources, struct in_addr *sources);
+void igmpv3_report_toex(struct igmp_sock *igmp, struct in_addr from,
+			struct in_addr group_addr,
+			int num_sources, struct in_addr *sources);
+void igmpv3_report_allow(struct igmp_sock *igmp, struct in_addr from,
+			 struct in_addr group_addr,
+			 int num_sources, struct in_addr *sources);
+void igmpv3_report_block(struct igmp_sock *igmp, struct in_addr from,
+			 struct in_addr group_addr,
+			 int num_sources, struct in_addr *sources);
+
+void igmp_group_timer_lower_to_lmqt(struct igmp_group *group);
+void igmp_source_timer_lower_to_lmqt(struct igmp_source *source);
+
+struct igmp_source *igmp_find_source_by_addr(struct igmp_group *group,
+					     struct in_addr src_addr);
+
+void pim_igmp_send_membership_query(struct igmp_group *group,
+				    int fd,
+				    const char *ifname,
+				    char *query_buf,
+				    int query_buf_size,
+				    int num_sources,
+				    struct in_addr dst_addr,
+				    struct in_addr group_addr,
+				    int query_max_response_time_dsec,
+				    uint8_t s_flag,
+				    uint8_t querier_robustness_variable,
+				    uint16_t querier_query_interval);
+
+#endif /* PIM_IGMPV3_H */