1 files changed, 130 insertions, 0 deletions
diff --git a/lib/mlag.h b/lib/mlag.h
new file mode 100644
index 0000000..3aef0d7
--- /dev/null
+++ b/lib/mlag.h
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* mlag header.
+ * Copyright (C) 2018 Cumulus Networks, Inc.
+ *                    Donald Sharp
+ */
+#ifndef __MLAG_H__
+#define __MLAG_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "lib/if.h"
+#include "lib/vrf.h"
+#include "lib/stream.h"
+
+#define MLAG_MSG_NULL_PAYLOAD 0
+#define MLAG_MSG_NO_BATCH 1
+#define MLAG_BUF_LIMIT 2048
+
+enum mlag_role {
+	MLAG_ROLE_NONE,
+	MLAG_ROLE_PRIMARY,
+	MLAG_ROLE_SECONDARY
+};
+
+enum mlag_state {
+	MLAG_STATE_DOWN,
+	MLAG_STATE_RUNNING,
+};
+
+enum mlag_frr_state {
+	MLAG_FRR_STATE_NONE,
+	MLAG_FRR_STATE_DOWN,
+	MLAG_FRR_STATE_UP,
+};
+
+enum mlag_owner {
+	MLAG_OWNER_NONE,
+	MLAG_OWNER_INTERFACE,
+	MLAG_OWNER_VXLAN,
+};
+
+/*
+ * This message definition should match mlag.proto
+ * Because message registration is based on this
+ */
+enum mlag_msg_type {
+	MLAG_MSG_NONE = 0,
+	MLAG_REGISTER = 1,
+	MLAG_DEREGISTER = 2,
+	MLAG_STATUS_UPDATE = 3,
+	MLAG_MROUTE_ADD = 4,
+	MLAG_MROUTE_DEL = 5,
+	MLAG_DUMP = 6,
+	MLAG_MROUTE_ADD_BULK = 7,
+	MLAG_MROUTE_DEL_BULK = 8,
+	MLAG_PIM_CFG_DUMP = 10,
+	MLAG_VXLAN_UPDATE = 11,
+	MLAG_PEER_FRR_STATUS = 12,
+};
+
+struct mlag_frr_status {
+	enum mlag_frr_state frr_state;
+};
+
+struct mlag_status {
+	char peerlink_rif[INTERFACE_NAMSIZ];
+	enum mlag_role my_role;
+	enum mlag_state peer_state;
+};
+
+#define MLAG_ROLE_STRSIZE 16
+
+struct mlag_vxlan {
+	uint32_t anycast_ip;
+	uint32_t local_ip;
+};
+
+struct mlag_mroute_add {
+	char vrf_name[VRF_NAMSIZ];
+	uint32_t source_ip;
+	uint32_t group_ip;
+	uint32_t cost_to_rp;
+	enum mlag_owner owner_id;
+	bool am_i_dr;
+	bool am_i_dual_active;
+	vrf_id_t vrf_id;
+	char intf_name[INTERFACE_NAMSIZ];
+};
+
+struct mlag_mroute_del {
+	char vrf_name[VRF_NAMSIZ];
+	uint32_t source_ip;
+	uint32_t group_ip;
+	enum mlag_owner owner_id;
+	vrf_id_t vrf_id;
+	char intf_name[INTERFACE_NAMSIZ];
+};
+
+struct mlag_msg {
+	enum mlag_msg_type msg_type;
+	uint16_t data_len;
+	uint16_t msg_cnt;
+	uint8_t data[0];
+} __attribute__((packed));
+
+
+extern char *mlag_role2str(enum mlag_role role, char *buf, size_t size);
+extern char *mlag_lib_msgid_to_str(enum mlag_msg_type msg_type, char *buf,
+				   size_t size);
+extern int mlag_lib_decode_mlag_hdr(struct stream *s, struct mlag_msg *msg,
+				    size_t *length);
+extern int mlag_lib_decode_mroute_add(struct stream *s,
+				      struct mlag_mroute_add *msg,
+				      size_t *length);
+extern int mlag_lib_decode_mroute_del(struct stream *s,
+				      struct mlag_mroute_del *msg,
+				      size_t *length);
+extern int mlag_lib_decode_mlag_status(struct stream *s,
+				       struct mlag_status *msg);
+extern int mlag_lib_decode_vxlan_update(struct stream *s,
+					struct mlag_vxlan *msg);
+extern int mlag_lib_decode_frr_status(struct stream *s,
+				      struct mlag_frr_status *msg);
+#ifdef __cplusplus
+}
+#endif
+
+#endif