Adding upstream version 9.1.upstream/9.1

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

1 files changed, 65 insertions, 0 deletions

diff --git a/bgpd/bgp_bfd.h b/bgpd/bgp_bfd.h
new file mode 100644
index 0000000..61b4b76
--- /dev/null
+++ b/bgpd/bgp_bfd.h
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/**
+ * bgp_bfd.h: BGP BFD definitions and structures
+ *
+ * @copyright Copyright (C) 2015 Cumulus Networks, Inc.
+ */
+
+#ifndef _QUAGGA_BGP_BFD_H
+#define _QUAGGA_BGP_BFD_H
+
+#define PEER_IS_MULTIHOP(peer)                                                 \
+	((((peer)->sort == BGP_PEER_IBGP) && !(peer)->shared_network)          \
+	 || is_ebgp_multihop_configured((peer)))
+
+extern void bgp_bfd_init(struct event_loop *tm);
+
+extern void bgp_bfd_peer_config_write(struct vty *vty, const struct peer *peer,
+				      const char *addr);
+
+/**
+ * Show BFD information helper.
+ *
+ * \param vty the VTY pointer.
+ * \param peer the BGP configuration pointer.
+ * \param use_json unused.
+ * \param json_neigh JSON object when called as JSON command.
+ */
+extern void bgp_bfd_show_info(struct vty *vty, const struct peer *peer,
+			      json_object *json_neigh);
+
+/**
+ * When called on a group it applies configuration to all peers in that group,
+ * otherwise just applies the configuration to a single peer.
+ *
+ * This function should be called when configuration changes either on group
+ * or peer.
+ *
+ * \param p the BGP peer pointer.
+ * \param pg the BGP group to copy configuration from (it is usually
+ *           `p->group` exception when copying new group configuration
+ *           see `peer_group2peer_config_copy` function case).
+ */
+extern void bgp_peer_config_apply(struct peer *p, struct peer_group *pg);
+
+/**
+ * Allocates and configure BFD session for peer. If it is already configured,
+ * then it does nothing.
+ *
+ * Always call `bgp_peer_config_apply` afterwards if you need the changes
+ * immediately applied.
+ */
+extern void bgp_peer_configure_bfd(struct peer *p, bool manual);
+
+/**
+ * Removes BFD configuration from either peer or peer group.
+ */
+extern void bgp_peer_remove_bfd_config(struct peer *p);
+
+/**
+ * Special function to handle the case of changing source address. This
+ * happens when the peer/group is configured with `neigbor X update-source Y`.
+ */
+extern void bgp_peer_bfd_update_source(struct peer *p);
+
+#endif /* _QUAGGA_BGP_BFD_H */