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Diffstat (limited to 'pimd/pim_ifchannel.h')
| -rw-r--r-- | pimd/pim_ifchannel.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/pimd/pim_ifchannel.h b/pimd/pim_ifchannel.h new file mode 100644 index 0000000..0c5b678 --- /dev/null +++ b/pimd/pim_ifchannel.h @@ -0,0 +1,161 @@ +/* + * 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 + */ + +#ifndef PIM_IFCHANNEL_H +#define PIM_IFCHANNEL_H + +#include <zebra.h> + +#include "if.h" +#include "prefix.h" + +#include "pim_assert.h" + +struct pim_ifchannel; +#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, + PIM_IFJOIN_PRUNE_PENDING, + PIM_IFJOIN_PRUNE_TMP, + PIM_IFJOIN_PRUNE_PENDING_TMP, +}; + +/* + 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) + +/* + * Flag to tell us if the ifchannel is (S,G,rpt) + */ +#define PIM_IF_FLAG_MASK_S_G_RPT (1 << 2) +#define PIM_IF_FLAG_TEST_S_G_RPT(flags) ((flags) & PIM_IF_FLAG_MASK_S_G_RPT) +#define PIM_IF_FLAG_SET_S_G_RPT(flags) ((flags) |= PIM_IF_FLAG_MASK_S_G_RPT) +#define PIM_IF_FLAG_UNSET_S_G_RPT(flags) ((flags) &= ~PIM_IF_FLAG_MASK_S_G_RPT) + +/* + * Flag to tell us if the ifchannel is proto PIM + */ +#define PIM_IF_FLAG_MASK_PROTO_PIM (1 << 3) +#define PIM_IF_FLAG_TEST_PROTO_PIM(flags) ((flags)&PIM_IF_FLAG_MASK_PROTO_PIM) +#define PIM_IF_FLAG_SET_PROTO_PIM(flags) ((flags) |= PIM_IF_FLAG_MASK_PROTO_PIM) +#define PIM_IF_FLAG_UNSET_PROTO_PIM(flags) \ + ((flags) &= ~PIM_IF_FLAG_MASK_PROTO_PIM) +/* + * Flag to tell us if the ifchannel is proto IGMP + */ +#define PIM_IF_FLAG_MASK_PROTO_IGMP (1 << 4) +#define PIM_IF_FLAG_TEST_PROTO_IGMP(flags) ((flags)&PIM_IF_FLAG_MASK_PROTO_IGMP) +#define PIM_IF_FLAG_SET_PROTO_IGMP(flags) \ + ((flags) |= PIM_IF_FLAG_MASK_PROTO_IGMP) +#define PIM_IF_FLAG_UNSET_PROTO_IGMP(flags) \ + ((flags) &= ~PIM_IF_FLAG_MASK_PROTO_IGMP) +/* + Per-interface (S,G) state +*/ +struct pim_ifchannel { + RB_ENTRY(rb_ifchannel) pim_ifp_rb; + + struct pim_ifchannel *parent; + struct list *sources; + pim_sgaddr sg; + char sg_str[PIM_SG_LEN]; + 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; + pim_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; +}; + +RB_HEAD(pim_ifchannel_rb, pim_ifchannel); +RB_PROTOTYPE(pim_ifchannel_rb, pim_ifchannel, pim_ifp_rb, + pim_ifchannel_compare); + +void pim_ifchannel_delete(struct pim_ifchannel *ch); +void pim_ifchannel_delete_all(struct interface *ifp); +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, pim_sgaddr *sg); +struct pim_ifchannel *pim_ifchannel_add(struct interface *ifp, pim_sgaddr *sg, + uint8_t ch_flags, int up_flags); +void pim_ifchannel_join_add(struct interface *ifp, pim_addr neigh_addr, + pim_addr upstream, pim_sgaddr *sg, + uint8_t source_flags, uint16_t holdtime); +void pim_ifchannel_prune(struct interface *ifp, pim_addr upstream, + pim_sgaddr *sg, uint8_t source_flags, + uint16_t holdtime); +int pim_ifchannel_local_membership_add(struct interface *ifp, pim_sgaddr *sg, + bool is_vxlan); +void pim_ifchannel_local_membership_del(struct interface *ifp, pim_sgaddr *sg); + +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, + int flags); +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); + +void pim_ifchannel_scan_forward_start(struct interface *new_ifp); +void pim_ifchannel_set_star_g_join_state(struct pim_ifchannel *ch, int eom, + uint8_t join); + +int pim_ifchannel_compare(const struct pim_ifchannel *ch1, + const struct pim_ifchannel *ch2); + +void delete_on_noinfo(struct pim_ifchannel *ch); +#endif /* PIM_IFCHANNEL_H */ |