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-rw-r--r--bgpd/bgp_evpn_private.h763
1 files changed, 763 insertions, 0 deletions
diff --git a/bgpd/bgp_evpn_private.h b/bgpd/bgp_evpn_private.h
new file mode 100644
index 0000000..5af99af
--- /dev/null
+++ b/bgpd/bgp_evpn_private.h
@@ -0,0 +1,763 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* BGP EVPN internal definitions
+ * Copyright (C) 2017 Cumulus Networks, Inc.
+ */
+
+#ifndef _BGP_EVPN_PRIVATE_H
+#define _BGP_EVPN_PRIVATE_H
+
+#include "vxlan.h"
+#include "zebra.h"
+
+#include "bgpd/bgpd.h"
+#include "bgpd/bgp_ecommunity.h"
+
+#define RT_ADDRSTRLEN 28
+
+/* EVPN prefix lengths. This represents the sizeof struct evpn_addr
+ * in bits */
+#define EVPN_ROUTE_PREFIXLEN (sizeof(struct evpn_addr) * 8)
+
+/* EVPN route RD buffer length */
+#define BGP_EVPN_PREFIX_RD_LEN 100
+
+/* packet sizes for EVPN routes */
+/* Type-1 route should be 25 bytes
+ * RD (8), ESI (10), eth-tag (4), vni (3)
+ */
+#define BGP_EVPN_TYPE1_PSIZE 25
+/* Type-4 route should be either 23 or 35 bytes
+ * RD (8), ESI (10), ip-len (1), ip (4 or 16)
+ */
+#define BGP_EVPN_TYPE4_V4_PSIZE 23
+#define BGP_EVPN_TYPE4_V6_PSIZE 34
+
+RB_HEAD(bgp_es_evi_rb_head, bgp_evpn_es_evi);
+RB_PROTOTYPE(bgp_es_evi_rb_head, bgp_evpn_es_evi, rb_node,
+ bgp_es_evi_rb_cmp);
+/*
+ * Hash table of EVIs. Right now, the only type of EVI supported is with
+ * VxLAN encapsulation, hence each EVI corresponds to a L2 VNI.
+ * The VNIs are not "created" through BGP but through some other interface
+ * on the system. This table stores VNIs that BGP comes to know as present
+ * on the system (through interaction with zebra) as well as pre-configured
+ * VNIs (which need to be defined in the system to become "live").
+ */
+struct bgpevpn {
+ vni_t vni;
+ vrf_id_t tenant_vrf_id;
+ ifindex_t svi_ifindex;
+ uint32_t flags;
+#define VNI_FLAG_CFGD 0x1 /* VNI is user configured */
+#define VNI_FLAG_LIVE 0x2 /* VNI is "live" */
+#define VNI_FLAG_RD_CFGD 0x4 /* RD is user configured. */
+#define VNI_FLAG_IMPRT_CFGD 0x8 /* Import RT is user configured */
+#define VNI_FLAG_EXPRT_CFGD 0x10 /* Export RT is user configured */
+#define VNI_FLAG_USE_TWO_LABELS 0x20 /* Attach both L2-VNI and L3-VNI if
+ needed for this VPN */
+
+ struct bgp *bgp_vrf; /* back pointer to the vrf instance */
+
+ /* Flag to indicate if we are
+ * advertising the g/w mac ip for
+ * this VNI*/
+ uint8_t advertise_gw_macip;
+
+ /* Flag to indicate if we are
+ * advertising subnet for this VNI */
+ uint8_t advertise_subnet;
+
+ /* Flag to indicate if we are advertising the svi mac ip for this VNI*/
+ uint8_t advertise_svi_macip;
+
+ /* Id for deriving the RD
+ * automatically for this VNI */
+ uint16_t rd_id;
+
+ /* RD for this VNI. */
+ struct prefix_rd prd;
+ char *prd_pretty;
+
+ /* Route type 3 field */
+ struct in_addr originator_ip;
+
+ /* PIM-SM MDT group for BUM flooding */
+ struct in_addr mcast_grp;
+
+ /* Import and Export RTs. */
+ struct list *import_rtl;
+ struct list *export_rtl;
+
+ /*
+ * EVPN route that uses gateway IP overlay index as its nexthop
+ * needs to do a recursive lookup.
+ * A remote MAC/IP entry should be present for the gateway IP.
+ * Maintain a hash of the addresses received via remote MAC/IP routes
+ * for efficient gateway IP recursive lookup in this EVI
+ */
+ struct hash *remote_ip_hash;
+
+ /* Route tables for EVPN routes for
+ * this VNI. */
+ struct bgp_table *ip_table;
+ struct bgp_table *mac_table;
+
+ /* RB tree of ES-EVIs */
+ struct bgp_es_evi_rb_head es_evi_rb_tree;
+
+ /* List of local ESs */
+ struct list *local_es_evi_list;
+
+ QOBJ_FIELDS;
+};
+
+DECLARE_QOBJ_TYPE(bgpevpn);
+
+/* Mapping of Import RT to VNIs.
+ * The Import RTs of all VNIs are maintained in a hash table with each
+ * RT linking to all VNIs that will import routes matching this RT.
+ */
+struct irt_node {
+ /* RT */
+ struct ecommunity_val rt;
+
+ /* List of VNIs importing routes matching this RT. */
+ struct list *vnis;
+};
+
+/* Mapping of Import RT to VRFs.
+ * The Import RTs of all VRFss are maintained in a hash table with each
+ * RT linking to all VRFs that will import routes matching this RT.
+ */
+struct vrf_irt_node {
+ /* RT */
+ struct ecommunity_val rt;
+
+ /* List of VNIs importing routes matching this RT. */
+ struct list *vrfs;
+};
+
+
+#define RT_TYPE_IMPORT 1
+#define RT_TYPE_EXPORT 2
+#define RT_TYPE_BOTH 3
+
+#define EVPN_DAD_DEFAULT_TIME 180 /* secs */
+#define EVPN_DAD_DEFAULT_MAX_MOVES 5 /* default from RFC 7432 */
+#define EVPN_DAD_DEFAULT_AUTO_RECOVERY_TIME 1800 /* secs */
+
+struct bgp_evpn_info {
+ /* enable disable dup detect */
+ bool dup_addr_detect;
+
+ /* Detection time(M) */
+ int dad_time;
+ /* Detection max moves(N) */
+ uint32_t dad_max_moves;
+ /* Permanent freeze */
+ bool dad_freeze;
+ /* Recovery time */
+ uint32_t dad_freeze_time;
+
+ /* EVPN enable - advertise svi macip routes */
+ int advertise_svi_macip;
+
+ /* MAC-VRF Site-of-Origin
+ * - added to all routes exported from L2VNI
+ * - Type-2/3 routes with matching SoO not imported into L2VNI
+ * - Type-2/5 routes with matching SoO not imported into L3VNI
+ */
+ struct ecommunity *soo;
+
+ /* PIP feature knob */
+ bool advertise_pip;
+ /* PIP IP (sys ip) */
+ struct in_addr pip_ip;
+ struct in_addr pip_ip_static;
+ /* PIP MAC (sys MAC) */
+ struct ethaddr pip_rmac;
+ struct ethaddr pip_rmac_static;
+ struct ethaddr pip_rmac_zebra;
+ bool is_anycast_mac;
+};
+
+/* This structure defines an entry in remote_ip_hash */
+struct evpn_remote_ip {
+ struct ipaddr addr;
+ struct list *macip_path_list;
+};
+
+/*
+ * Wrapper struct for l3 RT's
+ */
+struct vrf_route_target {
+ /* flags based on config to determine how RTs are handled */
+ uint8_t flags;
+#define BGP_VRF_RT_AUTO (1 << 0)
+#define BGP_VRF_RT_WILD (1 << 1)
+
+ struct ecommunity *ecom;
+};
+
+static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
+{
+ return (CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_RD_CFGD));
+}
+
+static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
+ struct prefix_rd *prd)
+{
+ return (memcmp(&bgp_vrf->vrf_prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
+}
+
+static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
+{
+ return vpn->bgp_vrf ? vpn->bgp_vrf->l3vni : 0;
+}
+
+static inline void bgpevpn_get_rmac(struct bgpevpn *vpn, struct ethaddr *rmac)
+{
+ memset(rmac, 0, sizeof(struct ethaddr));
+ if (!vpn->bgp_vrf)
+ return;
+ memcpy(rmac, &vpn->bgp_vrf->rmac, sizeof(struct ethaddr));
+}
+
+static inline struct list *bgpevpn_get_vrf_export_rtl(struct bgpevpn *vpn)
+{
+ if (!vpn->bgp_vrf)
+ return NULL;
+
+ return vpn->bgp_vrf->vrf_export_rtl;
+}
+
+static inline struct list *bgpevpn_get_vrf_import_rtl(struct bgpevpn *vpn)
+{
+ if (!vpn->bgp_vrf)
+ return NULL;
+
+ return vpn->bgp_vrf->vrf_import_rtl;
+}
+
+extern void bgp_evpn_es_evi_vrf_ref(struct bgpevpn *vpn);
+extern void bgp_evpn_es_evi_vrf_deref(struct bgpevpn *vpn);
+
+static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
+{
+ /* bail if vpn is not associated to bgp_vrf */
+ if (!vpn->bgp_vrf)
+ return;
+
+ UNSET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
+ listnode_delete(vpn->bgp_vrf->l2vnis, vpn);
+
+ bgp_evpn_es_evi_vrf_deref(vpn);
+
+ /* remove the backpointer to the vrf instance */
+ bgp_unlock(vpn->bgp_vrf);
+ vpn->bgp_vrf = NULL;
+}
+
+static inline void bgpevpn_link_to_l3vni(struct bgpevpn *vpn)
+{
+ struct bgp *bgp_vrf = NULL;
+
+ /* bail if vpn is already associated to vrf */
+ if (vpn->bgp_vrf)
+ return;
+
+ bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
+ if (!bgp_vrf)
+ return;
+
+ /* associate the vpn to the bgp_vrf instance */
+ vpn->bgp_vrf = bgp_lock(bgp_vrf);
+ listnode_add_sort(bgp_vrf->l2vnis, vpn);
+
+ /*
+ * If L3VNI is configured,
+ * check if we are advertising two labels for this vpn
+ */
+ if (bgp_vrf->l3vni &&
+ !CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY))
+ SET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
+
+ bgp_evpn_es_evi_vrf_ref(vpn);
+}
+
+static inline int is_vni_configured(struct bgpevpn *vpn)
+{
+ return (CHECK_FLAG(vpn->flags, VNI_FLAG_CFGD));
+}
+
+static inline int is_vni_live(struct bgpevpn *vpn)
+{
+ return (CHECK_FLAG(vpn->flags, VNI_FLAG_LIVE));
+}
+
+static inline int is_l3vni_live(struct bgp *bgp_vrf)
+{
+ return (bgp_vrf->l3vni && bgp_vrf->l3vni_svi_ifindex);
+}
+
+static inline int is_rd_configured(struct bgpevpn *vpn)
+{
+ return (CHECK_FLAG(vpn->flags, VNI_FLAG_RD_CFGD));
+}
+
+static inline int bgp_evpn_rd_matches_existing(struct bgpevpn *vpn,
+ struct prefix_rd *prd)
+{
+ return (memcmp(&vpn->prd.val, prd->val, ECOMMUNITY_SIZE) == 0);
+}
+
+static inline int is_import_rt_configured(struct bgpevpn *vpn)
+{
+ return (CHECK_FLAG(vpn->flags, VNI_FLAG_IMPRT_CFGD));
+}
+
+static inline int is_export_rt_configured(struct bgpevpn *vpn)
+{
+ return (CHECK_FLAG(vpn->flags, VNI_FLAG_EXPRT_CFGD));
+}
+
+static inline void encode_es_rt_extcomm(struct ecommunity_val *eval,
+ struct ethaddr *mac)
+{
+ memset(eval, 0, sizeof(struct ecommunity_val));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ES_IMPORT_RT;
+ memcpy(&eval->val[2], mac, ETH_ALEN);
+}
+
+static inline void encode_df_elect_extcomm(struct ecommunity_val *eval,
+ uint16_t pref)
+{
+ memset(eval, 0, sizeof(*eval));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DF_ELECTION;
+ eval->val[2] = EVPN_MH_DF_ALG_PREF;
+ eval->val[6] = (pref >> 8) & 0xff;
+ eval->val[7] = pref & 0xff;
+}
+
+static inline void encode_esi_label_extcomm(struct ecommunity_val *eval,
+ bool single_active)
+{
+ memset(eval, 0, sizeof(struct ecommunity_val));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ESI_LABEL;
+ if (single_active)
+ eval->val[2] |= (1 << 0);
+}
+
+static inline void encode_rmac_extcomm(struct ecommunity_val *eval,
+ struct ethaddr *rmac)
+{
+ memset(eval, 0, sizeof(*eval));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ROUTERMAC;
+ memcpy(&eval->val[2], rmac, ETH_ALEN);
+}
+
+static inline void encode_default_gw_extcomm(struct ecommunity_val *eval)
+{
+ memset(eval, 0, sizeof(*eval));
+ eval->val[0] = ECOMMUNITY_ENCODE_OPAQUE;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DEF_GW;
+}
+
+static inline void encode_mac_mobility_extcomm(int static_mac, uint32_t seq,
+ struct ecommunity_val *eval)
+{
+ memset(eval, 0, sizeof(*eval));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY;
+ if (static_mac)
+ eval->val[2] = ECOMMUNITY_EVPN_SUBTYPE_MACMOBILITY_FLAG_STICKY;
+ eval->val[4] = (seq >> 24) & 0xff;
+ eval->val[5] = (seq >> 16) & 0xff;
+ eval->val[6] = (seq >> 8) & 0xff;
+ eval->val[7] = seq & 0xff;
+}
+
+static inline void encode_na_flag_extcomm(struct ecommunity_val *eval,
+ uint8_t na_flag, bool proxy)
+{
+ memset(eval, 0, sizeof(*eval));
+ eval->val[0] = ECOMMUNITY_ENCODE_EVPN;
+ eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_ND;
+ if (na_flag)
+ eval->val[2] |= ECOMMUNITY_EVPN_SUBTYPE_ND_ROUTER_FLAG;
+ if (proxy)
+ eval->val[2] |= ECOMMUNITY_EVPN_SUBTYPE_PROXY_FLAG;
+}
+
+static inline void ip_prefix_from_type5_prefix(const struct prefix_evpn *evp,
+ struct prefix *ip)
+{
+ memset(ip, 0, sizeof(struct prefix));
+ if (is_evpn_prefix_ipaddr_v4(evp)) {
+ ip->family = AF_INET;
+ ip->prefixlen = evp->prefix.prefix_addr.ip_prefix_length;
+ memcpy(&(ip->u.prefix4), &(evp->prefix.prefix_addr.ip.ip),
+ IPV4_MAX_BYTELEN);
+ } else if (is_evpn_prefix_ipaddr_v6(evp)) {
+ ip->family = AF_INET6;
+ ip->prefixlen = evp->prefix.prefix_addr.ip_prefix_length;
+ memcpy(&(ip->u.prefix6), &(evp->prefix.prefix_addr.ip.ip),
+ IPV6_MAX_BYTELEN);
+ }
+}
+
+static inline int is_evpn_prefix_default(const struct prefix *evp)
+{
+ if (evp->family != AF_EVPN)
+ return 0;
+
+ return ((evp->u.prefix_evpn.prefix_addr.ip_prefix_length == 0) ?
+ 1 : 0);
+}
+
+static inline void ip_prefix_from_type2_prefix(const struct prefix_evpn *evp,
+ struct prefix *ip)
+{
+ memset(ip, 0, sizeof(struct prefix));
+ if (is_evpn_prefix_ipaddr_v4(evp)) {
+ ip->family = AF_INET;
+ ip->prefixlen = IPV4_MAX_BITLEN;
+ memcpy(&(ip->u.prefix4), &(evp->prefix.macip_addr.ip.ip),
+ IPV4_MAX_BYTELEN);
+ } else if (is_evpn_prefix_ipaddr_v6(evp)) {
+ ip->family = AF_INET6;
+ ip->prefixlen = IPV6_MAX_BITLEN;
+ memcpy(&(ip->u.prefix6), &(evp->prefix.macip_addr.ip.ip),
+ IPV6_MAX_BYTELEN);
+ }
+}
+
+static inline void ip_prefix_from_evpn_prefix(const struct prefix_evpn *evp,
+ struct prefix *ip)
+{
+ if (evp->prefix.route_type == BGP_EVPN_MAC_IP_ROUTE)
+ ip_prefix_from_type2_prefix(evp, ip);
+ else if (evp->prefix.route_type == BGP_EVPN_IP_PREFIX_ROUTE)
+ ip_prefix_from_type5_prefix(evp, ip);
+}
+
+static inline void build_evpn_type2_prefix(struct prefix_evpn *p,
+ struct ethaddr *mac,
+ struct ipaddr *ip)
+{
+ memset(p, 0, sizeof(struct prefix_evpn));
+ p->family = AF_EVPN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
+ p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
+ memcpy(&p->prefix.macip_addr.mac.octet, mac->octet, ETH_ALEN);
+ p->prefix.macip_addr.ip.ipa_type = IPADDR_NONE;
+ memcpy(&p->prefix.macip_addr.ip, ip, sizeof(*ip));
+}
+
+static inline void
+build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
+ const struct prefix *ip_prefix)
+{
+ struct ipaddr ip;
+
+ memset(&ip, 0, sizeof(struct ipaddr));
+ if (ip_prefix->family == AF_INET) {
+ ip.ipa_type = IPADDR_V4;
+ memcpy(&ip.ipaddr_v4, &ip_prefix->u.prefix4,
+ sizeof(struct in_addr));
+ } else {
+ ip.ipa_type = IPADDR_V6;
+ memcpy(&ip.ipaddr_v6, &ip_prefix->u.prefix6,
+ sizeof(struct in6_addr));
+ }
+
+ memset(evp, 0, sizeof(struct prefix_evpn));
+ evp->family = AF_EVPN;
+ evp->prefixlen = EVPN_ROUTE_PREFIXLEN;
+ evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
+ evp->prefix.prefix_addr.ip_prefix_length = ip_prefix->prefixlen;
+ evp->prefix.prefix_addr.ip.ipa_type = ip.ipa_type;
+ memcpy(&evp->prefix.prefix_addr.ip, &ip, sizeof(struct ipaddr));
+}
+
+static inline void build_evpn_type3_prefix(struct prefix_evpn *p,
+ struct in_addr originator_ip)
+{
+ memset(p, 0, sizeof(struct prefix_evpn));
+ p->family = AF_EVPN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
+ p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
+ p->prefix.imet_addr.ip.ipa_type = IPADDR_V4;
+ p->prefix.imet_addr.ip.ipaddr_v4 = originator_ip;
+}
+
+static inline void build_evpn_type4_prefix(struct prefix_evpn *p,
+ esi_t *esi,
+ struct in_addr originator_ip)
+{
+ memset(p, 0, sizeof(struct prefix_evpn));
+ p->family = AF_EVPN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
+ p->prefix.route_type = BGP_EVPN_ES_ROUTE;
+ p->prefix.es_addr.ip_prefix_length = IPV4_MAX_BITLEN;
+ p->prefix.es_addr.ip.ipa_type = IPADDR_V4;
+ p->prefix.es_addr.ip.ipaddr_v4 = originator_ip;
+ memcpy(&p->prefix.es_addr.esi, esi, sizeof(esi_t));
+}
+
+static inline void build_evpn_type1_prefix(struct prefix_evpn *p,
+ uint32_t eth_tag,
+ esi_t *esi,
+ struct in_addr originator_ip)
+{
+ memset(p, 0, sizeof(struct prefix_evpn));
+ p->family = AF_EVPN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
+ p->prefix.route_type = BGP_EVPN_AD_ROUTE;
+ p->prefix.ead_addr.eth_tag = eth_tag;
+ p->prefix.ead_addr.ip.ipa_type = IPADDR_V4;
+ p->prefix.ead_addr.ip.ipaddr_v4 = originator_ip;
+ memcpy(&p->prefix.ead_addr.esi, esi, sizeof(esi_t));
+}
+
+static inline void evpn_type1_prefix_global_copy(struct prefix_evpn *global_p,
+ const struct prefix_evpn *vni_p)
+{
+ memcpy(global_p, vni_p, sizeof(*global_p));
+ global_p->prefix.ead_addr.ip.ipa_type = 0;
+ global_p->prefix.ead_addr.ip.ipaddr_v4.s_addr = INADDR_ANY;
+ global_p->prefix.ead_addr.frag_id = 0;
+}
+
+/* EAD prefix in the global table doesn't include the VTEP-IP so
+ * we need to create a different copy for the VNI
+ */
+static inline struct prefix_evpn *
+evpn_type1_prefix_vni_ip_copy(struct prefix_evpn *vni_p,
+ const struct prefix_evpn *global_p,
+ struct in_addr originator_ip)
+{
+ memcpy(vni_p, global_p, sizeof(*vni_p));
+ vni_p->prefix.ead_addr.ip.ipa_type = IPADDR_V4;
+ vni_p->prefix.ead_addr.ip.ipaddr_v4 = originator_ip;
+
+ return vni_p;
+}
+
+static inline void evpn_type2_prefix_global_copy(
+ struct prefix_evpn *global_p, const struct prefix_evpn *vni_p,
+ const struct ethaddr *mac, const struct ipaddr *ip)
+{
+ memcpy(global_p, vni_p, sizeof(*global_p));
+
+ if (mac)
+ global_p->prefix.macip_addr.mac = *mac;
+
+ if (ip)
+ global_p->prefix.macip_addr.ip = *ip;
+}
+
+static inline void
+evpn_type2_prefix_vni_ip_copy(struct prefix_evpn *vni_p,
+ const struct prefix_evpn *global_p)
+{
+ memcpy(vni_p, global_p, sizeof(*vni_p));
+ memset(&vni_p->prefix.macip_addr.mac, 0, sizeof(struct ethaddr));
+}
+
+static inline void
+evpn_type2_prefix_vni_mac_copy(struct prefix_evpn *vni_p,
+ const struct prefix_evpn *global_p)
+{
+ memcpy(vni_p, global_p, sizeof(*vni_p));
+ memset(&vni_p->prefix.macip_addr.ip, 0, sizeof(struct ipaddr));
+}
+
+/* Get MAC of path_info prefix */
+static inline struct ethaddr *
+evpn_type2_path_info_get_mac(const struct bgp_path_info *local_pi)
+{
+ assert(local_pi->extra && local_pi->extra->evpn);
+ return &local_pi->extra->evpn->vni_info.mac;
+}
+
+/* Get IP of path_info prefix */
+static inline struct ipaddr *
+evpn_type2_path_info_get_ip(const struct bgp_path_info *local_pi)
+{
+ assert(local_pi->extra && local_pi->extra->evpn);
+ return &local_pi->extra->evpn->vni_info.ip;
+}
+
+/* Set MAC of path_info prefix */
+static inline void evpn_type2_path_info_set_mac(struct bgp_path_info *local_pi,
+ const struct ethaddr mac)
+{
+ assert(local_pi->extra && local_pi->extra->evpn);
+ local_pi->extra->evpn->vni_info.mac = mac;
+}
+
+/* Set IP of path_info prefix */
+static inline void evpn_type2_path_info_set_ip(struct bgp_path_info *local_pi,
+ const struct ipaddr ip)
+{
+ assert(local_pi->extra && local_pi->extra->evpn);
+ local_pi->extra->evpn->vni_info.ip = ip;
+}
+
+/* Is the IP empty for the RT's dest? */
+static inline bool is_evpn_type2_dest_ipaddr_none(const struct bgp_dest *dest)
+{
+ const struct prefix_evpn *evp =
+ (const struct prefix_evpn *)bgp_dest_get_prefix(dest);
+
+ assert(evp->prefix.route_type == BGP_EVPN_MAC_IP_ROUTE);
+ return is_evpn_prefix_ipaddr_none(evp);
+}
+
+static inline int evpn_default_originate_set(struct bgp *bgp, afi_t afi,
+ safi_t safi)
+{
+ if (afi == AFI_IP &&
+ CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
+ BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4))
+ return 1;
+ else if (afi == AFI_IP6 &&
+ CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
+ BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6))
+ return 1;
+ return 0;
+}
+
+static inline void es_get_system_mac(esi_t *esi,
+ struct ethaddr *mac)
+{
+ /*
+ * for type-1 and type-3 ESIs,
+ * the system mac starts at val[1]
+ */
+ memcpy(mac, &esi->val[1], ETH_ALEN);
+}
+
+static inline bool bgp_evpn_is_svi_macip_enabled(struct bgpevpn *vpn)
+{
+ struct bgp *bgp_evpn = NULL;
+
+ bgp_evpn = bgp_get_evpn();
+
+ return (bgp_evpn->evpn_info->advertise_svi_macip ||
+ vpn->advertise_svi_macip);
+}
+
+static inline bool bgp_evpn_is_path_local(struct bgp *bgp,
+ struct bgp_path_info *pi)
+{
+ return (pi->peer == bgp->peer_self
+ && pi->type == ZEBRA_ROUTE_BGP
+ && pi->sub_type == BGP_ROUTE_STATIC);
+}
+
+extern struct zclient *zclient;
+
+extern void bgp_evpn_install_uninstall_default_route(struct bgp *bgp_vrf,
+ afi_t afi, safi_t safi,
+ bool add);
+extern void evpn_rt_delete_auto(struct bgp *bgp, vni_t vni, struct list *rtl,
+ bool is_l3);
+extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp *bgp_vrf,
+ struct ecommunity *ecomadd);
+extern void bgp_evpn_configure_export_auto_rt_for_vrf(struct bgp *bgp_vrf);
+extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp *bgp_vrf,
+ struct ecommunity *ecomdel);
+extern void bgp_evpn_unconfigure_export_auto_rt_for_vrf(struct bgp *bgp_vrf);
+extern void bgp_evpn_configure_import_rt_for_vrf(struct bgp *bgp_vrf,
+ struct ecommunity *ecomadd,
+ bool is_wildcard);
+extern void bgp_evpn_configure_import_auto_rt_for_vrf(struct bgp *bgp_vrf);
+extern void bgp_evpn_unconfigure_import_rt_for_vrf(struct bgp *bgp_vrf,
+ struct ecommunity *ecomdel);
+extern void bgp_evpn_unconfigure_import_auto_rt_for_vrf(struct bgp *bgp_vrf);
+extern int bgp_evpn_handle_export_rt_change(struct bgp *bgp,
+ struct bgpevpn *vpn);
+extern void bgp_evpn_handle_autort_change(struct bgp *bgp);
+extern void bgp_evpn_handle_vrf_rd_change(struct bgp *bgp_vrf, int withdraw);
+extern void bgp_evpn_handle_rd_change(struct bgp *bgp, struct bgpevpn *vpn,
+ int withdraw);
+void bgp_evpn_handle_global_macvrf_soo_change(struct bgp *bgp,
+ struct ecommunity *new_soo);
+extern int bgp_evpn_install_routes(struct bgp *bgp, struct bgpevpn *vpn);
+extern int bgp_evpn_uninstall_routes(struct bgp *bgp, struct bgpevpn *vpn);
+extern void bgp_evpn_map_vrf_to_its_rts(struct bgp *bgp_vrf);
+extern void bgp_evpn_unmap_vrf_from_its_rts(struct bgp *bgp_vrf);
+extern void bgp_evpn_map_vni_to_its_rts(struct bgp *bgp, struct bgpevpn *vpn);
+extern void bgp_evpn_unmap_vni_from_its_rts(struct bgp *bgp,
+ struct bgpevpn *vpn);
+extern void bgp_evpn_derive_auto_rt_import(struct bgp *bgp,
+ struct bgpevpn *vpn);
+extern void bgp_evpn_derive_auto_rt_export(struct bgp *bgp,
+ struct bgpevpn *vpn);
+extern void bgp_evpn_derive_auto_rd(struct bgp *bgp, struct bgpevpn *vpn);
+extern void bgp_evpn_derive_auto_rd_for_vrf(struct bgp *bgp);
+extern struct bgpevpn *bgp_evpn_lookup_vni(struct bgp *bgp, vni_t vni);
+extern struct bgpevpn *bgp_evpn_new(struct bgp *bgp, vni_t vni,
+ struct in_addr originator_ip,
+ vrf_id_t tenant_vrf_id,
+ struct in_addr mcast_grp,
+ ifindex_t svi_ifindex);
+extern void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn);
+extern bool bgp_evpn_lookup_l3vni_l2vni_table(vni_t vni);
+extern int update_routes_for_vni(struct bgp *bgp, struct bgpevpn *vpn);
+extern void delete_evpn_route_entry(struct bgp *bgp, afi_t afi, safi_t safi,
+ struct bgp_dest *dest,
+ struct bgp_path_info **pi);
+int vni_list_cmp(void *p1, void *p2);
+extern int evpn_route_select_install(struct bgp *bgp, struct bgpevpn *vpn,
+ struct bgp_dest *dest);
+extern struct bgp_dest *
+bgp_evpn_global_node_get(struct bgp_table *table, afi_t afi, safi_t safi,
+ const struct prefix_evpn *evp, struct prefix_rd *prd,
+ const struct bgp_path_info *local_pi);
+extern struct bgp_dest *bgp_evpn_global_node_lookup(
+ struct bgp_table *table, safi_t safi, const struct prefix_evpn *evp,
+ struct prefix_rd *prd, const struct bgp_path_info *local_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_ip_node_get(struct bgp_table *const table,
+ const struct prefix_evpn *evp,
+ const struct bgp_path_info *parent_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_ip_node_lookup(const struct bgp_table *const table,
+ const struct prefix_evpn *evp,
+ const struct bgp_path_info *parent_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_mac_node_get(struct bgp_table *const table,
+ const struct prefix_evpn *evp,
+ const struct bgp_path_info *parent_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_mac_node_lookup(const struct bgp_table *const table,
+ const struct prefix_evpn *evp,
+ const struct bgp_path_info *parent_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_node_get(struct bgpevpn *vpn, const struct prefix_evpn *p,
+ const struct bgp_path_info *parent_pi);
+extern struct bgp_dest *
+bgp_evpn_vni_node_lookup(const struct bgpevpn *vpn, const struct prefix_evpn *p,
+ const struct bgp_path_info *parent_pi);
+
+extern void bgp_evpn_import_route_in_vrfs(struct bgp_path_info *pi, int import);
+extern void bgp_evpn_update_type2_route_entry(struct bgp *bgp,
+ struct bgpevpn *vpn,
+ struct bgp_dest *rn,
+ struct bgp_path_info *local_pi,
+ const char *caller);
+extern int bgp_evpn_route_entry_install_if_vrf_match(struct bgp *bgp_vrf,
+ struct bgp_path_info *pi,
+ int install);
+extern void bgp_evpn_import_type2_route(struct bgp_path_info *pi, int import);
+extern void bgp_evpn_xxport_delete_ecomm(void *val);
+extern int bgp_evpn_route_target_cmp(struct ecommunity *ecom1,
+ struct ecommunity *ecom2);
+#endif /* _BGP_EVPN_PRIVATE_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 08:49:28 +0000