WIP: bird import proto

controlplane/libbird.h

@@ -0,0 +1,174 @@
+#ifndef LIBBIRD_H
+#define LIBBIRD_H
+
+#include <stdint.h>
+
+#define NET_IP4		1
+#define NET_IP6		2
+#define NET_VPN4	3
+#define NET_VPN6	4
+#define NET_ROA4	5
+#define NET_ROA6	6
+#define NET_FLOW4	7
+#define NET_FLOW6	8
+#define NET_IP6_SADR	9
+#define NET_MPLS	10
+#define NET_MAX		11
+
+#define NB_IP4		(1 << NET_IP4)
+#define NB_IP6		(1 << NET_IP6)
+#define NB_VPN4		(1 << NET_VPN4)
+#define NB_VPN6		(1 << NET_VPN6)
+#define NB_ROA4		(1 << NET_ROA4)
+#define NB_ROA6		(1 << NET_ROA6)
+#define NB_FLOW4	(1 << NET_FLOW4)
+#define NB_FLOW6	(1 << NET_FLOW6)
+#define NB_IP6_SADR	(1 << NET_IP6_SADR)
+#define NB_MPLS		(1 << NET_MPLS)
+
+#define NB_IP		(NB_IP4 | NB_IP6)
+#define NB_VPN		(NB_VPN4 | NB_VPN6)
+#define NB_ROA		(NB_ROA4 | NB_ROA6)
+#define NB_FLOW		(NB_FLOW4 | NB_FLOW6)
+#define NB_DEST		(NB_IP | NB_IP6_SADR | NB_VPN | NB_MPLS)
+#define NB_ANY		0xffffffff
+
+#define BA_ORIGIN		0x01	/* RFC 4271 */		/* WM */
+#define BA_AS_PATH		0x02				/* WM */
+#define BA_NEXT_HOP		0x03				/* WM */
+#define BA_MULTI_EXIT_DISC	0x04				/* ON */
+#define BA_LOCAL_PREF		0x05				/* WD */
+#define BA_ATOMIC_AGGR		0x06				/* WD */
+#define BA_AGGREGATOR		0x07				/* OT */
+#define BA_COMMUNITY		0x08	/* RFC 1997 */		/* OT */
+#define BA_ORIGINATOR_ID	0x09	/* RFC 4456 */		/* ON */
+#define BA_CLUSTER_LIST		0x0a	/* RFC 4456 */		/* ON */
+#define BA_MP_REACH_NLRI	0x0e	/* RFC 4760 */
+#define BA_MP_UNREACH_NLRI	0x0f	/* RFC 4760 */
+#define BA_EXT_COMMUNITY	0x10	/* RFC 4360 */
+#define BA_AS4_PATH             0x11	/* RFC 6793 */
+#define BA_AS4_AGGREGATOR       0x12	/* RFC 6793 */
+#define BA_AIGP			0x1a	/* RFC 7311 */
+#define BA_LARGE_COMMUNITY	0x20	/* RFC 8092 */
+#define BA_ONLY_TO_CUSTOMER	0x23	/* RFC 9234 */
+
+/* Bird's private internal BGP attributes */
+#define BA_MPLS_LABEL_STACK	0xfe	/* MPLS label stack transfer attribute */
+
+#define EA_ID(ea) ((ea) & 0xff)
+#define EA_PROTO(ea) ((ea) >> 8)
+
+typedef uint32_t ip4_addr;
+
+typedef struct ip6_addr {
+  uint32_t addr[4];
+} ip6_addr;
+
+typedef ip6_addr ip_addr;
+
+typedef struct net_addr {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  uint8_t data[20];
+  uint64_t align[0];
+} net_addr;
+
+typedef struct net_addr_ip4 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip4_addr prefix;
+} net_addr_ip4;
+
+typedef struct net_addr_ip6 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip6_addr prefix;
+} net_addr_ip6;
+
+typedef struct net_addr_vpn4 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip4_addr prefix;
+  uint64_t rd;
+} net_addr_vpn4;
+
+typedef struct net_addr_vpn6 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip6_addr prefix;
+  uint32_t padding;
+  uint64_t rd;
+} net_addr_vpn6;
+
+typedef struct net_addr_roa4 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip4_addr prefix;
+  uint32_t max_pxlen;
+  uint32_t asn;
+} net_addr_roa4;
+
+typedef struct net_addr_roa6 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip6_addr prefix;
+  uint32_t max_pxlen;
+  uint32_t asn;
+} net_addr_roa6;
+
+typedef struct net_addr_flow4 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip4_addr prefix;
+  uint8_t data[0];
+} net_addr_flow4;
+
+typedef struct net_addr_flow6 {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  ip6_addr prefix;
+  uint8_t data[0];
+} net_addr_flow6;
+
+typedef struct net_addr_mpls {
+  uint8_t type;
+  uint8_t pxlen;
+  uint16_t length;
+  uint32_t label;
+} net_addr_mpls;
+
+typedef struct net_addr_ip6_sadr {
+  uint8_t type;
+  uint8_t dst_pxlen;
+  uint16_t length;
+  ip6_addr dst_prefix;
+  int32_t src_pxlen; /* s32 to avoid padding */
+  ip6_addr src_prefix;
+} net_addr_ip6_sadr;
+
+typedef union net_addr_union {
+  net_addr n;
+  net_addr_ip4 ip4;
+  net_addr_ip6 ip6;
+  net_addr_vpn4 vpn4;
+  net_addr_vpn6 vpn6;
+  net_addr_roa4 roa4;
+  net_addr_roa6 roa6;
+  net_addr_flow4 flow4;
+  net_addr_flow6 flow6;
+  net_addr_ip6_sadr ip6_sadr;
+  net_addr_mpls mpls;
+} net_addr_union;
+
+
+
+#endif