Adding upstream version 9.1.upstream/9.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 214 insertions, 0 deletions

diff --git a/ospf6d/ospf6_neighbor.h b/ospf6d/ospf6_neighbor.h
new file mode 100644
index 0000000..226f4c1
--- /dev/null
+++ b/ospf6d/ospf6_neighbor.h
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2003 Yasuhiro Ohara
+ */
+
+#ifndef OSPF6_NEIGHBOR_H
+#define OSPF6_NEIGHBOR_H
+
+#include "hook.h"
+
+/* Forward declaration(s). */
+struct ospf6_area;
+
+/* Debug option */
+extern unsigned char conf_debug_ospf6_neighbor;
+#define OSPF6_DEBUG_NEIGHBOR_STATE   0x01
+#define OSPF6_DEBUG_NEIGHBOR_EVENT   0x02
+#define OSPF6_DEBUG_NEIGHBOR_ON(level) (conf_debug_ospf6_neighbor |= (level))
+#define OSPF6_DEBUG_NEIGHBOR_OFF(level) (conf_debug_ospf6_neighbor &= ~(level))
+#define IS_OSPF6_DEBUG_NEIGHBOR(level)                                         \
+	(conf_debug_ospf6_neighbor & OSPF6_DEBUG_NEIGHBOR_##level)
+
+struct ospf6_helper_info {
+
+	/* Grace interval received from
+	 * Restarting Router.
+	 */
+	uint32_t recvd_grace_period;
+
+	/* Grace interval used for grace
+	 * gracetimer.
+	 */
+	uint32_t actual_grace_period;
+
+	/* Grace timer,This Router acts as
+	 * helper until this timer until
+	 * this timer expires.
+	 */
+	struct event *t_grace_timer;
+
+	/* Helper status */
+	uint32_t gr_helper_status;
+
+	/* Helper exit reason*/
+	uint32_t helper_exit_reason;
+
+	/* Planned/Unplanned restart*/
+	uint32_t gr_restart_reason;
+
+
+	/* Helper rejected reason */
+	uint32_t rejected_reason;
+};
+
+/* Neighbor structure */
+struct ospf6_neighbor {
+	/* Neighbor Router ID String */
+	char name[36];
+
+	/* OSPFv3 Interface this neighbor belongs to */
+	struct ospf6_interface *ospf6_if;
+
+	/* Neighbor state */
+	uint8_t state;
+
+	/* timestamp of last changing state */
+	uint32_t state_change;
+	struct timeval last_changed;
+
+	/* last received hello */
+	struct timeval last_hello;
+	uint32_t hello_in;
+
+	/* Neighbor Router ID */
+	in_addr_t router_id;
+
+	/* Neighbor Interface ID */
+	ifindex_t ifindex;
+
+	/* Router Priority of this neighbor */
+	uint8_t priority;
+
+	in_addr_t drouter;
+	in_addr_t bdrouter;
+	in_addr_t prev_drouter;
+	in_addr_t prev_bdrouter;
+
+	/* Options field (Capability) */
+	char options[3];
+
+	/* IPaddr of I/F on neighbour's link */
+	struct in6_addr linklocal_addr;
+
+	/* For Database Exchange */
+	uint8_t dbdesc_bits;
+	uint32_t dbdesc_seqnum;
+	/* Last received Database Description packet */
+	struct ospf6_dbdesc dbdesc_last;
+
+	/* LS-list */
+	struct ospf6_lsdb *summary_list;
+	struct ospf6_lsdb *request_list;
+	struct ospf6_lsdb *retrans_list;
+
+	/* LSA list for message transmission */
+	struct ospf6_lsdb *dbdesc_list;
+	struct ospf6_lsdb *lsreq_list;
+	struct ospf6_lsdb *lsupdate_list;
+	struct ospf6_lsdb *lsack_list;
+
+	struct ospf6_lsa *last_ls_req;
+
+	/* Inactivity timer */
+	struct event *inactivity_timer;
+
+	/* Timer to release the last dbdesc packet */
+	struct event *last_dbdesc_release_timer;
+
+	/* Thread for sending message */
+	struct event *thread_send_dbdesc;
+	struct event *thread_send_lsreq;
+	struct event *thread_send_lsupdate;
+	struct event *thread_send_lsack;
+	struct event *thread_exchange_done;
+	struct event *thread_adj_ok;
+	struct event *event_loading_done;
+
+	/* BFD information */
+	struct bfd_session_params *bfd_session;
+
+	/* ospf6 graceful restart HELPER info */
+	struct ospf6_helper_info gr_helper_info;
+
+	/* seqnum_h/l is used to compare sequence
+	 * number in received packet Auth header
+	 */
+	uint32_t seqnum_h[OSPF6_MESSAGE_TYPE_MAX];
+	uint32_t seqnum_l[OSPF6_MESSAGE_TYPE_MAX];
+	bool auth_present;
+	bool lls_present;
+};
+
+/* Neighbor state */
+#define OSPF6_NEIGHBOR_DOWN     1
+#define OSPF6_NEIGHBOR_ATTEMPT  2
+#define OSPF6_NEIGHBOR_INIT     3
+#define OSPF6_NEIGHBOR_TWOWAY   4
+#define OSPF6_NEIGHBOR_EXSTART  5
+#define OSPF6_NEIGHBOR_EXCHANGE 6
+#define OSPF6_NEIGHBOR_LOADING  7
+#define OSPF6_NEIGHBOR_FULL     8
+
+/* Neighbor Events */
+#define OSPF6_NEIGHBOR_EVENT_NO_EVENT             0
+#define OSPF6_NEIGHBOR_EVENT_HELLO_RCVD           1
+#define OSPF6_NEIGHBOR_EVENT_TWOWAY_RCVD          2
+#define OSPF6_NEIGHBOR_EVENT_NEGOTIATION_DONE     3
+#define OSPF6_NEIGHBOR_EVENT_EXCHANGE_DONE        4
+#define OSPF6_NEIGHBOR_EVENT_LOADING_DONE         5
+#define OSPF6_NEIGHBOR_EVENT_ADJ_OK               6
+#define OSPF6_NEIGHBOR_EVENT_SEQNUMBER_MISMATCH   7
+#define OSPF6_NEIGHBOR_EVENT_BAD_LSREQ            8
+#define OSPF6_NEIGHBOR_EVENT_ONEWAY_RCVD          9
+#define OSPF6_NEIGHBOR_EVENT_INACTIVITY_TIMER    10
+#define OSPF6_NEIGHBOR_EVENT_MAX_EVENT           11
+
+extern const char *const ospf6_neighbor_event_str[];
+
+static inline const char *ospf6_neighbor_event_string(int event)
+{
+#define OSPF6_NEIGHBOR_UNKNOWN_EVENT_STRING "UnknownEvent"
+
+	if (event < OSPF6_NEIGHBOR_EVENT_MAX_EVENT)
+		return ospf6_neighbor_event_str[event];
+	return OSPF6_NEIGHBOR_UNKNOWN_EVENT_STRING;
+}
+
+extern const char *const ospf6_neighbor_state_str[];
+
+
+/* Function Prototypes */
+int ospf6_neighbor_cmp(void *va, void *vb);
+void ospf6_neighbor_dbex_init(struct ospf6_neighbor *on);
+
+struct ospf6_neighbor *ospf6_neighbor_lookup(uint32_t router_id,
+					     struct ospf6_interface *oi);
+struct ospf6_neighbor *ospf6_area_neighbor_lookup(struct ospf6_area *area,
+						  uint32_t router_id);
+struct ospf6_neighbor *ospf6_neighbor_create(uint32_t router_id,
+					     struct ospf6_interface *oi);
+void ospf6_neighbor_delete(struct ospf6_neighbor *on);
+
+/* Neighbor event */
+extern void hello_received(struct event *thread);
+extern void twoway_received(struct event *thread);
+extern void negotiation_done(struct event *thread);
+extern void exchange_done(struct event *thread);
+extern void loading_done(struct event *thread);
+extern void adj_ok(struct event *thread);
+extern void seqnumber_mismatch(struct event *thread);
+extern void bad_lsreq(struct event *thread);
+extern void oneway_received(struct event *thread);
+extern void inactivity_timer(struct event *thread);
+extern void ospf6_check_nbr_loading(struct ospf6_neighbor *on);
+
+extern void ospf6_neighbor_init(void);
+extern int config_write_ospf6_debug_neighbor(struct vty *vty);
+extern void install_element_ospf6_debug_neighbor(void);
+
+DECLARE_HOOK(ospf6_neighbor_change,
+	     (struct ospf6_neighbor * on, int state, int next_state),
+	     (on, state, next_state));
+
+#endif /* OSPF6_NEIGHBOR_H */