Adding upstream version 8.4.4.upstream/8.4.4upstream

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

1 files changed, 265 insertions, 0 deletions

diff --git a/ldpd/lde.h b/ldpd/lde.h
new file mode 100644
index 0000000..bcb1e1c
--- /dev/null
+++ b/ldpd/lde.h
@@ -0,0 +1,265 @@
+/*	$OpenBSD$ */
+
+/*
+ * Copyright (c) 2013, 2016 Renato Westphal <renato@openbsd.org>
+ * Copyright (c) 2009 Michele Marchetto <michele@openbsd.org>
+ * Copyright (c) 2004, 2005 Esben Norby <norby@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _LDE_H_
+#define _LDE_H_
+
+#include "queue.h"
+#include "openbsd-tree.h"
+#include "if.h"
+
+enum fec_type {
+	FEC_TYPE_IPV4,
+	FEC_TYPE_IPV6,
+	FEC_TYPE_PWID
+};
+
+struct fec {
+	RB_ENTRY(fec)		entry;
+	enum fec_type		type;
+	union {
+		struct {
+			struct in_addr	prefix;
+			uint8_t		prefixlen;
+		} ipv4;
+		struct {
+			struct in6_addr	prefix;
+			uint8_t		prefixlen;
+		} ipv6;
+		struct {
+			uint16_t	type;
+			uint32_t	pwid;
+			struct in_addr	lsr_id;
+		} pwid;
+	} u;
+};
+RB_HEAD(fec_tree, fec);
+RB_PROTOTYPE(fec_tree, fec, entry, fec_compare)
+
+/* request entries */
+struct lde_req {
+	struct fec		 fec;
+	uint32_t		 msg_id;
+};
+
+/* mapping entries */
+struct lde_map {
+	struct fec		 fec;
+	struct lde_map_head	*head;	/* fec_node's upstream/downstream */
+	RB_ENTRY(lde_map)	 entry;
+	struct lde_nbr		*nexthop;
+	struct map		 map;
+};
+RB_HEAD(lde_map_head, lde_map);
+RB_PROTOTYPE(lde_map_head, lde_map, entry, lde_map_cmp);
+
+/* withdraw entries */
+struct lde_wdraw {
+	struct fec		 fec;
+	uint32_t		 label;
+};
+
+/* Addresses belonging to neighbor */
+struct lde_addr {
+	TAILQ_ENTRY(lde_addr)	 entry;
+	int			 af;
+	union ldpd_addr		 addr;
+};
+
+/* just the info LDE needs */
+struct lde_nbr {
+	RB_ENTRY(lde_nbr)	 entry;
+	uint32_t		 peerid;
+	struct in_addr		 id;
+	int			 v4_enabled;	/* announce/process v4 msgs */
+	int			 v6_enabled;	/* announce/process v6 msgs */
+	int			 flags;		/* capabilities */
+	struct fec_tree		 recv_req;
+	struct fec_tree		 sent_req;
+	struct fec_tree		 recv_map;
+	struct fec_tree		 sent_map;
+	struct fec_tree		 sent_map_pending;
+	struct fec_tree		 sent_wdraw;
+	TAILQ_HEAD(, lde_addr)	 addr_list;
+};
+RB_HEAD(nbr_tree, lde_nbr);
+RB_PROTOTYPE(nbr_tree, lde_nbr, entry, lde_nbr_compare)
+
+struct fec_nh {
+	LIST_ENTRY(fec_nh)	 entry;
+	int			 af;
+	union ldpd_addr		 nexthop;
+	ifindex_t		 ifindex;
+	uint32_t		 remote_label;
+	uint8_t			 route_type;
+	unsigned short		 route_instance;
+	uint8_t			 flags;
+};
+#define F_FEC_NH_NEW		0x01
+#define F_FEC_NH_CONNECTED	0x02
+#define F_FEC_NH_DEFER		0x04		/* running ordered control */
+#define F_FEC_NH_NO_LDP		0x08		/* no ldp on this interface */
+
+struct fec_node {
+	struct fec		 fec;
+
+	LIST_HEAD(, fec_nh)	 nexthops;	/* fib nexthops */
+	struct lde_map_head	 downstream;	/* recv mappings */
+	struct lde_map_head	 upstream;	/* sent mappings */
+
+	uint32_t		 local_label;
+
+	uint32_t		 pw_remote_status;
+
+	void			*data;		/* fec specific data */
+};
+
+#define CHUNK_SIZE		64
+struct label_chunk {
+	uint32_t		 start;
+	uint32_t		 end;
+	uint64_t		 used_mask;
+};
+
+#define LDE_GC_INTERVAL 300
+
+extern struct ldpd_conf	*ldeconf;
+extern struct fec_tree	 ft;
+extern struct nbr_tree	 lde_nbrs;
+extern struct thread	*gc_timer;
+
+/* lde.c */
+void		 lde(void);
+void		 lde_init(struct ldpd_init *);
+int		 lde_imsg_compose_parent(int, pid_t, void *, uint16_t);
+void		 lde_imsg_compose_parent_sync(int, pid_t, void *, uint16_t);
+int		 lde_imsg_compose_ldpe(int, uint32_t, pid_t, void *, uint16_t);
+int		 lde_acl_check(char *, int, union ldpd_addr *, uint8_t);
+uint32_t	 lde_update_label(struct fec_node *);
+void		 lde_free_label(uint32_t label);
+void		 lde_send_change_klabel(struct fec_node *, struct fec_nh *);
+void		 lde_send_delete_klabel(struct fec_node *, struct fec_nh *);
+void		 lde_fec2prefix(const struct fec *fec, struct prefix *prefix);
+void		 lde_prefix2fec(const struct prefix *prefix, struct fec *fec);
+void		 lde_fec2map(struct fec *, struct map *);
+void		 lde_map2fec(struct map *, struct in_addr, struct fec *);
+void		 lde_send_labelmapping(struct lde_nbr *, struct fec_node *,
+		    int);
+void		 lde_send_labelwithdraw(struct lde_nbr *, struct fec_node *,
+		    struct map *, struct status_tlv *);
+void		 lde_send_labelwithdraw_wcard(struct lde_nbr *, uint32_t);
+void		 lde_send_labelwithdraw_twcard_prefix(struct lde_nbr *,
+		    uint16_t, uint32_t);
+void		 lde_send_labelwithdraw_twcard_pwid(struct lde_nbr *, uint16_t,
+		    uint32_t);
+void		 lde_send_labelwithdraw_pwid_wcard(struct lde_nbr *, uint16_t,
+		    uint32_t);
+void		 lde_send_labelrelease(struct lde_nbr *, struct fec_node *,
+		    struct map *, uint32_t);
+void		 lde_send_labelrequest(struct lde_nbr *, struct fec_node *,
+		     struct map *, int);
+void		 lde_send_labelrequest_wcard(struct lde_nbr *, uint16_t af);
+void		 lde_send_notification(struct lde_nbr *, uint32_t, uint32_t,
+		    uint16_t);
+void		 lde_send_notification_eol_prefix(struct lde_nbr *, int);
+void		 lde_send_notification_eol_pwid(struct lde_nbr *, uint16_t);
+struct lde_nbr	*lde_nbr_find_by_lsrid(struct in_addr);
+struct lde_nbr	*lde_nbr_find_by_addr(int, union ldpd_addr *);
+struct lde_map	*lde_map_add(struct lde_nbr *, struct fec_node *, int);
+void		 lde_map_del(struct lde_nbr *, struct lde_map *, int);
+struct fec 	*lde_map_pending_add(struct lde_nbr *, struct fec_node *);
+void		 lde_map_pending_del(struct lde_nbr *, struct fec *);
+struct lde_req	*lde_req_add(struct lde_nbr *, struct fec *, int);
+void		 lde_req_del(struct lde_nbr *, struct lde_req *, int);
+struct lde_wdraw *lde_wdraw_add(struct lde_nbr *, struct fec_node *);
+void		 lde_wdraw_del(struct lde_nbr *, struct lde_wdraw *);
+void		 lde_change_egress_label(int);
+void		 lde_change_allocate_filter(int);
+void		 lde_change_advertise_filter(int);
+void		 lde_change_accept_filter(int);
+void		 lde_change_expnull_for_filter(int);
+void		 lde_route_update(struct iface *, int);
+void		 lde_route_update_release(struct iface *, int);
+void		 lde_route_update_release_all(int);
+struct lde_addr	*lde_address_find(struct lde_nbr *, int,
+		    union ldpd_addr *);
+void		 lde_allow_broken_lsp_update(int new_config);
+
+/* lde_lib.c */
+void		 fec_init(struct fec_tree *);
+struct fec	*fec_find(struct fec_tree *, struct fec *);
+int		 fec_insert(struct fec_tree *, struct fec *);
+int		 fec_remove(struct fec_tree *, struct fec *);
+void		 fec_clear(struct fec_tree *, void (*)(void *));
+void		 rt_dump(pid_t);
+void		 fec_snap(struct lde_nbr *);
+void		 fec_tree_clear(void);
+struct fec_nh	*fec_nh_find(struct fec_node *, int, union ldpd_addr *,
+		    ifindex_t, uint8_t, unsigned short);
+void		 lde_kernel_insert(struct fec *, int, union ldpd_addr *,
+		    ifindex_t, uint8_t, unsigned short, int, void *);
+void		 lde_kernel_remove(struct fec *, int, union ldpd_addr *,
+		    ifindex_t, uint8_t, unsigned short);
+void		 lde_kernel_update(struct fec *);
+void		 lde_check_mapping(struct map *, struct lde_nbr *, int);
+void		 lde_check_request(struct map *, struct lde_nbr *);
+void		 lde_check_request_wcard(struct map *, struct lde_nbr *);
+void		 lde_check_release(struct map *, struct lde_nbr *);
+void		 lde_check_release_wcard(struct map *, struct lde_nbr *);
+void		 lde_check_withdraw(struct map *, struct lde_nbr *);
+void		 lde_check_withdraw_wcard(struct map *, struct lde_nbr *);
+int		 lde_wildcard_apply(struct map *, struct fec *,
+		    struct lde_map *);
+void lde_gc_timer(struct thread *thread);
+void		 lde_gc_start_timer(void);
+void		 lde_gc_stop_timer(void);
+
+/* l2vpn.c */
+struct l2vpn	*l2vpn_new(const char *);
+struct l2vpn	*l2vpn_find(struct ldpd_conf *, const char *);
+void		 l2vpn_del(struct l2vpn *);
+void		 l2vpn_init(struct l2vpn *);
+void		 l2vpn_exit(struct l2vpn *);
+struct l2vpn_if	*l2vpn_if_new(struct l2vpn *, const char *);
+struct l2vpn_if	*l2vpn_if_find(struct l2vpn *, const char *);
+void		 l2vpn_if_update_info(struct l2vpn_if *, struct kif *);
+void		 l2vpn_if_update(struct l2vpn_if *);
+struct l2vpn_pw	*l2vpn_pw_new(struct l2vpn *, const char *);
+struct l2vpn_pw *l2vpn_pw_find(struct l2vpn *, const char *);
+struct l2vpn_pw	*l2vpn_pw_find_active(struct l2vpn *, const char *);
+struct l2vpn_pw	*l2vpn_pw_find_inactive(struct l2vpn *, const char *);
+void		 l2vpn_pw_update_info(struct l2vpn_pw *, struct kif *);
+void		 l2vpn_pw_init(struct l2vpn_pw *);
+void		 l2vpn_pw_exit(struct l2vpn_pw *);
+void		 l2vpn_pw_reset(struct l2vpn_pw *);
+int		 l2vpn_pw_ok(struct l2vpn_pw *, struct fec_nh *);
+int		 l2vpn_pw_negotiate(struct lde_nbr *, struct fec_node *,
+		    struct map *);
+void		 l2vpn_send_pw_status(struct lde_nbr *, uint32_t, struct fec *);
+void		 l2vpn_send_pw_status_wcard(struct lde_nbr *, uint32_t,
+		    uint16_t, uint32_t);
+void		 l2vpn_recv_pw_status(struct lde_nbr *, struct notify_msg *);
+void		 l2vpn_recv_pw_status_wcard(struct lde_nbr *,
+		    struct notify_msg *);
+int 		 l2vpn_pw_status_update(struct zapi_pw_status *);
+void		 l2vpn_pw_ctl(pid_t);
+void		 l2vpn_binding_ctl(pid_t);
+
+#endif	/* _LDE_H_ */