[pim] Initial pim 0.155
diff --git a/pimd/pim_ifchannel.h b/pimd/pim_ifchannel.h
new file mode 100644
index 0000000..e6f1c29
--- /dev/null
+++ b/pimd/pim_ifchannel.h
@@ -0,0 +1,145 @@
+/*
+ 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_IFCHANNEL_H
+#define PIM_IFCHANNEL_H
+
+#include <zebra.h>
+
+#include "if.h"
+
+#include "pim_upstream.h"
+
+enum pim_ifmembership {
+ PIM_IFMEMBERSHIP_NOINFO,
+ PIM_IFMEMBERSHIP_INCLUDE
+};
+
+enum pim_ifjoin_state {
+ PIM_IFJOIN_NOINFO,
+ PIM_IFJOIN_JOIN,
+ PIM_IFJOIN_PRUNE_PENDING
+};
+
+enum pim_ifassert_state {
+ PIM_IFASSERT_NOINFO,
+ PIM_IFASSERT_I_AM_WINNER,
+ PIM_IFASSERT_I_AM_LOSER
+};
+
+struct pim_assert_metric {
+ uint32_t rpt_bit_flag;
+ uint32_t metric_preference;
+ uint32_t route_metric;
+ struct in_addr ip_address; /* neighbor router that sourced the Assert message */
+};
+
+/*
+ Flag to detect change in CouldAssert(S,G,I)
+*/
+#define PIM_IF_FLAG_MASK_COULD_ASSERT (1 << 0)
+#define PIM_IF_FLAG_TEST_COULD_ASSERT(flags) ((flags) & PIM_IF_FLAG_MASK_COULD_ASSERT)
+#define PIM_IF_FLAG_SET_COULD_ASSERT(flags) ((flags) |= PIM_IF_FLAG_MASK_COULD_ASSERT)
+#define PIM_IF_FLAG_UNSET_COULD_ASSERT(flags) ((flags) &= ~PIM_IF_FLAG_MASK_COULD_ASSERT)
+/*
+ Flag to detect change in AssertTrackingDesired(S,G,I)
+*/
+#define PIM_IF_FLAG_MASK_ASSERT_TRACKING_DESIRED (1 << 1)
+#define PIM_IF_FLAG_TEST_ASSERT_TRACKING_DESIRED(flags) ((flags) & PIM_IF_FLAG_MASK_ASSERT_TRACKING_DESIRED)
+#define PIM_IF_FLAG_SET_ASSERT_TRACKING_DESIRED(flags) ((flags) |= PIM_IF_FLAG_MASK_ASSERT_TRACKING_DESIRED)
+#define PIM_IF_FLAG_UNSET_ASSERT_TRACKING_DESIRED(flags) ((flags) &= ~PIM_IF_FLAG_MASK_ASSERT_TRACKING_DESIRED)
+
+/*
+ Per-interface (S,G) state
+*/
+struct pim_ifchannel {
+ struct in_addr source_addr; /* (S,G) source key */
+ struct in_addr group_addr; /* (S,G) group key */
+ struct interface *interface; /* backpointer to interface */
+ uint32_t flags;
+
+ /* IGMPv3 determined interface has local members for (S,G) ? */
+ enum pim_ifmembership local_ifmembership;
+
+ /* Per-interface (S,G) Join/Prune State (Section 4.1.4 of RFC4601) */
+ enum pim_ifjoin_state ifjoin_state;
+ struct thread *t_ifjoin_expiry_timer;
+ struct thread *t_ifjoin_prune_pending_timer;
+ int64_t ifjoin_creation; /* Record uptime of ifjoin state */
+
+ /* Per-interface (S,G) Assert State (Section 4.6.1 of RFC4601) */
+ enum pim_ifassert_state ifassert_state;
+ struct thread *t_ifassert_timer;
+ struct in_addr ifassert_winner;
+ struct pim_assert_metric ifassert_winner_metric;
+ int64_t ifassert_creation; /* Record uptime of ifassert state */
+ struct pim_assert_metric ifassert_my_metric;
+
+ /* Upstream (S,G) state */
+ struct pim_upstream *upstream;
+};
+
+void pim_ifchannel_free(struct pim_ifchannel *ch);
+void pim_ifchannel_delete(struct pim_ifchannel *ch);
+void pim_ifchannel_membership_clear(struct interface *ifp);
+void pim_ifchannel_delete_on_noinfo(struct interface *ifp);
+struct pim_ifchannel *pim_ifchannel_find(struct interface *ifp,
+ struct in_addr source_addr,
+ struct in_addr group_addr);
+struct pim_ifchannel *pim_ifchannel_add(struct interface *ifp,
+ struct in_addr source_addr,
+ struct in_addr group_addr);
+void pim_ifchannel_join_add(struct interface *ifp,
+ struct in_addr neigh_addr,
+ struct in_addr upstream,
+ struct in_addr source_addr,
+ struct in_addr group_addr,
+ uint8_t source_flags,
+ uint16_t holdtime);
+void pim_ifchannel_prune(struct interface *ifp,
+ struct in_addr upstream,
+ struct in_addr source_addr,
+ struct in_addr group_addr,
+ uint8_t source_flags,
+ uint16_t holdtime);
+void pim_ifchannel_local_membership_add(struct interface *ifp,
+ struct in_addr source_addr,
+ struct in_addr group_addr);
+void pim_ifchannel_local_membership_del(struct interface *ifp,
+ struct in_addr source_addr,
+ struct in_addr group_addr);
+
+void pim_ifchannel_ifjoin_switch(const char *caller,
+ struct pim_ifchannel *ch,
+ enum pim_ifjoin_state new_state);
+const char *pim_ifchannel_ifjoin_name(enum pim_ifjoin_state ifjoin_state);
+const char *pim_ifchannel_ifassert_name(enum pim_ifassert_state ifassert_state);
+
+int pim_ifchannel_isin_oiflist(struct pim_ifchannel *ch);
+
+void reset_ifassert_state(struct pim_ifchannel *ch);
+
+void pim_ifchannel_update_could_assert(struct pim_ifchannel *ch);
+void pim_ifchannel_update_my_assert_metric(struct pim_ifchannel *ch);
+void pim_ifchannel_update_assert_tracking_desired(struct pim_ifchannel *ch);
+
+#endif /* PIM_IFCHANNEL_H */