[pim] Initial pim 0.155
diff --git a/pimd/pim_igmp.h b/pimd/pim_igmp.h
new file mode 100644
index 0000000..656147f
--- /dev/null
+++ b/pimd/pim_igmp.h
@@ -0,0 +1,172 @@
+/*
+ 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_IGMP_H
+#define PIM_IGMP_H
+
+#include <netinet/in.h>
+
+#include <zebra.h>
+#include "vty.h"
+#include "linklist.h"
+
+/*
+ The following sizes are likely to support
+ any message sent within local MTU.
+*/
+#define PIM_IGMP_BUFSIZE_READ (20000)
+#define PIM_IGMP_BUFSIZE_WRITE (20000)
+
+#define PIM_IGMP_MEMBERSHIP_QUERY (0x11)
+#define PIM_IGMP_V1_MEMBERSHIP_REPORT (0x12)
+#define PIM_IGMP_V2_MEMBERSHIP_REPORT (0x16)
+#define PIM_IGMP_V2_LEAVE_GROUP (0x17)
+#define PIM_IGMP_V3_MEMBERSHIP_REPORT (0x22)
+
+#define IGMP_V3_REPORT_HEADER_SIZE (8)
+#define IGMP_V3_GROUP_RECORD_MIN_SIZE (8)
+#define IGMP_V3_MSG_MIN_SIZE (IGMP_V3_REPORT_HEADER_SIZE + \
+ IGMP_V3_GROUP_RECORD_MIN_SIZE)
+#define IGMP_V12_MSG_SIZE (8)
+
+#define IGMP_V3_GROUP_RECORD_TYPE_OFFSET (0)
+#define IGMP_V3_GROUP_RECORD_AUXDATALEN_OFFSET (1)
+#define IGMP_V3_GROUP_RECORD_NUMSOURCES_OFFSET (2)
+#define IGMP_V3_GROUP_RECORD_GROUP_OFFSET (4)
+#define IGMP_V3_GROUP_RECORD_SOURCE_OFFSET (8)
+
+/* RFC 3376: 8.1. Robustness Variable - Default: 2 */
+#define IGMP_DEFAULT_ROBUSTNESS_VARIABLE (2)
+
+/* RFC 3376: 8.2. Query Interval - Default: 125 seconds */
+#define IGMP_GENERAL_QUERY_INTERVAL (125)
+
+/* RFC 3376: 8.3. Query Response Interval - Default: 100 deciseconds */
+#define IGMP_QUERY_MAX_RESPONSE_TIME_DSEC (100)
+
+struct igmp_join {
+ struct in_addr group_addr;
+ struct in_addr source_addr;
+ int sock_fd;
+};
+
+struct igmp_sock {
+ int fd;
+ struct interface *interface;
+ struct in_addr ifaddr;
+ time_t sock_creation;
+
+ struct thread *t_igmp_read; /* read: IGMP sockets */
+ struct thread *t_igmp_query_timer; /* timer: issue IGMP general queries */
+ struct thread *t_other_querier_timer; /* timer: other querier present */
+
+ int querier_query_interval; /* QQI */
+ int querier_robustness_variable; /* QRV */
+ int startup_query_count;
+
+ struct list *igmp_group_list; /* list of struct igmp_group */
+};
+
+struct igmp_sock *pim_igmp_sock_lookup_ifaddr(struct list *igmp_sock_list,
+ struct in_addr ifaddr);
+struct igmp_sock *igmp_sock_lookup_by_fd(struct list *igmp_sock_list,
+ int fd);
+struct igmp_sock *pim_igmp_sock_add(struct list *igmp_sock_list,
+ struct in_addr ifaddr,
+ struct interface *ifp);
+void igmp_sock_delete(struct igmp_sock *igmp);
+void igmp_sock_free(struct igmp_sock *igmp);
+
+int pim_igmp_packet(struct igmp_sock *igmp, char *buf, size_t len);
+
+void pim_igmp_general_query_on(struct igmp_sock *igmp);
+void pim_igmp_general_query_off(struct igmp_sock *igmp);
+void pim_igmp_other_querier_timer_on(struct igmp_sock *igmp);
+void pim_igmp_other_querier_timer_off(struct igmp_sock *igmp);
+
+#define IGMP_SOURCE_MASK_FORWARDING (1 << 0)
+#define IGMP_SOURCE_MASK_DELETE (1 << 1)
+#define IGMP_SOURCE_MASK_SEND (1 << 2)
+#define IGMP_SOURCE_TEST_FORWARDING(flags) ((flags) & IGMP_SOURCE_MASK_FORWARDING)
+#define IGMP_SOURCE_TEST_DELETE(flags) ((flags) & IGMP_SOURCE_MASK_DELETE)
+#define IGMP_SOURCE_TEST_SEND(flags) ((flags) & IGMP_SOURCE_MASK_SEND)
+#define IGMP_SOURCE_DO_FORWARDING(flags) ((flags) |= IGMP_SOURCE_MASK_FORWARDING)
+#define IGMP_SOURCE_DO_DELETE(flags) ((flags) |= IGMP_SOURCE_MASK_DELETE)
+#define IGMP_SOURCE_DO_SEND(flags) ((flags) |= IGMP_SOURCE_MASK_SEND)
+#define IGMP_SOURCE_DONT_FORWARDING(flags) ((flags) &= ~IGMP_SOURCE_MASK_FORWARDING)
+#define IGMP_SOURCE_DONT_DELETE(flags) ((flags) &= ~IGMP_SOURCE_MASK_DELETE)
+#define IGMP_SOURCE_DONT_SEND(flags) ((flags) &= ~IGMP_SOURCE_MASK_SEND)
+
+struct igmp_source {
+ struct in_addr source_addr;
+ struct thread *t_source_timer;
+ struct igmp_group *source_group; /* back pointer */
+ time_t source_creation;
+ uint32_t source_flags;
+ struct channel_oil *source_channel_oil;
+
+ /*
+ RFC 3376: 6.6.3.2. Building and Sending Group and Source Specific Queries
+ */
+ int source_query_retransmit_count;
+};
+
+struct igmp_group {
+ /*
+ RFC 3376: 6.2.2. Definition of Group Timers
+
+ The group timer is only used when a group is in EXCLUDE mode and it
+ represents the time for the *filter-mode* of the group to expire and
+ switch to INCLUDE mode.
+ */
+ struct thread *t_group_timer;
+
+ /* Shared between group-specific and
+ group-and-source-specific retransmissions */
+ struct thread *t_group_query_retransmit_timer;
+
+ /* Counter exclusive for group-specific retransmissions
+ (not used by group-and-source-specific retransmissions,
+ since sources have their counters) */
+ int group_specific_query_retransmit_count;
+
+ struct in_addr group_addr;
+ int group_filtermode_isexcl; /* 0=INCLUDE, 1=EXCLUDE */
+ struct list *group_source_list; /* list of struct igmp_source */
+ time_t group_creation;
+ struct igmp_sock *group_igmp_sock; /* back pointer */
+ int64_t last_igmp_v1_report_dsec;
+ int64_t last_igmp_v2_report_dsec;
+};
+
+struct igmp_group *igmp_add_group_by_addr(struct igmp_sock *igmp,
+ struct in_addr group_addr,
+ const char *ifname);
+
+void igmp_group_delete_empty_include(struct igmp_group *group);
+
+void igmp_startup_mode_on(struct igmp_sock *igmp);
+
+void igmp_group_timer_on(struct igmp_group *group,
+ long interval_msec, const char *ifname);
+
+#endif /* PIM_IGMP_H */