#define RT_ADDRSTRLEN 28
/* EVPN prefix lengths. This reprsent the sizeof struct prefix_evpn */
-#define EVPN_TYPE_2_ROUTE_PREFIXLEN 224
-#define EVPN_TYPE_3_ROUTE_PREFIXLEN 224
-#define EVPN_TYPE_5_ROUTE_PREFIXLEN 224
+#define EVPN_ROUTE_PREFIXLEN 224
/* EVPN route types. */
typedef enum {
struct bgpevpn {
vni_t vni;
vrf_id_t tenant_vrf_id;
- u_int32_t flags;
+ 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 */
- /* Flag to indicate if we are advertising the g/w mac ip for this VNI*/
- u_int8_t advertise_gw_macip;
+ struct bgp *bgp_vrf; /* back pointer to the vrf instance */
- /* Flag to indicate if we are advertising subnet for this VNI */
- u_int8_t advertise_subnet;
+ /* Flag to indicate if we are
+ * advertising the g/w mac ip for
+ * this VNI*/
+ uint8_t advertise_gw_macip;
- /* Id for deriving the RD automatically for this VNI */
- u_int16_t rd_id;
+ /* Flag to indicate if we are
+ * advertising subnet for this VNI */
+ uint8_t advertise_subnet;
+
+ /* Id for deriving the RD
+ * automatically for this VNI */
+ uint16_t rd_id;
/* RD for this VNI. */
struct prefix_rd prd;
struct list *import_rtl;
struct list *export_rtl;
- /* Route table for EVPN routes for this VNI. */
+ /* Route table for EVPN routes for
+ * this VNI. */
struct bgp_table *route_table;
QOBJ_FIELDS
DECLARE_QOBJ_TYPE(bgpevpn)
+struct evpnes {
+
+ /* Ethernet Segment Identifier */
+ esi_t esi;
+
+ /* es flags */
+ uint16_t flags;
+#define EVPNES_LOCAL 0x01
+#define EVPNES_REMOTE 0x02
+
+ /*
+ * Id for deriving the RD
+ * automatically for this ESI
+ */
+ uint16_t rd_id;
+
+ /* RD for this VNI. */
+ struct prefix_rd prd;
+
+ /* originator ip address */
+ struct ipaddr originator_ip;
+
+ /* list of VTEPs in the same site */
+ struct list *vtep_list;
+
+ /*
+ * Route table for EVPN routes for
+ * this ESI. - type4 routes
+ */
+ struct bgp_table *route_table;
+
+ QOBJ_FIELDS
+};
+
+DECLARE_QOBJ_TYPE(evpnes)
+
/* 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.
static inline int is_vrf_rd_configured(struct bgp *bgp_vrf)
{
- return (CHECK_FLAG(bgp_vrf->vrf_flags,
- BGP_VRF_RD_CFGD));
+ return (CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_RD_CFGD));
}
static inline int bgp_evpn_vrf_rd_matches_existing(struct bgp *bgp_vrf,
static inline vni_t bgpevpn_get_l3vni(struct bgpevpn *vpn)
{
- struct bgp *bgp_vrf = NULL;
-
- bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
- if (!bgp_vrf)
- return 0;
-
- return bgp_vrf->l3vni;
+ return vpn->bgp_vrf ? vpn->bgp_vrf->l3vni : 0;
}
static inline void bgpevpn_get_rmac(struct bgpevpn *vpn, struct ethaddr *rmac)
{
- struct bgp *bgp_vrf = NULL;
-
memset(rmac, 0, sizeof(struct ethaddr));
- bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
- if (!bgp_vrf)
+ if (!vpn->bgp_vrf)
return;
- memcpy(rmac, &bgp_vrf->rmac, sizeof(struct ethaddr));
+ memcpy(rmac, &vpn->bgp_vrf->rmac, sizeof(struct ethaddr));
}
static inline struct list *bgpevpn_get_vrf_export_rtl(struct bgpevpn *vpn)
{
- struct bgp *bgp_vrf = NULL;
-
- bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
- if (!bgp_vrf)
+ if (!vpn->bgp_vrf)
return NULL;
- return bgp_vrf->vrf_export_rtl;
+ return vpn->bgp_vrf->vrf_export_rtl;
}
static inline struct list *bgpevpn_get_vrf_import_rtl(struct bgpevpn *vpn)
{
- struct bgp *bgp_vrf = NULL;
-
- bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
- if (!bgp_vrf)
+ if (!vpn->bgp_vrf)
return NULL;
- return bgp_vrf->vrf_import_rtl;
+ return vpn->bgp_vrf->vrf_import_rtl;
}
static inline void bgpevpn_unlink_from_l3vni(struct bgpevpn *vpn)
{
- struct bgp *bgp_vrf = NULL;
-
- bgp_vrf = bgp_lookup_by_vrf_id(vpn->tenant_vrf_id);
- if (!bgp_vrf || !bgp_vrf->l2vnis)
+ /* bail if vpn is not associated to bgp_vrf */
+ if (!vpn->bgp_vrf)
return;
- listnode_delete(bgp_vrf->l2vnis, vpn);
+
+ UNSET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
+ listnode_delete(vpn->bgp_vrf->l2vnis, vpn);
+
+ /* remove the backpointer to the vrf instance */
+ 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 || !bgp_vrf->l2vnis)
+ if (!bgp_vrf)
return;
+
+ /* associate the vpn to the bgp_vrf instance */
+ vpn->bgp_vrf = bgp_vrf;
listnode_add_sort(bgp_vrf->l2vnis, vpn);
+
+ /* check if we are advertising two labels for this vpn */
+ if (!CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_L3VNI_PREFIX_ROUTES_ONLY))
+ SET_FLAG(vpn->flags, VNI_FLAG_USE_TWO_LABELS);
}
static inline int is_vni_configured(struct bgpevpn *vpn)
|| is_export_rt_configured(vpn));
}
+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_rmac_extcomm(struct ecommunity_val *eval,
struct ethaddr *rmac)
{
eval->val[1] = ECOMMUNITY_EVPN_SUBTYPE_DEF_GW;
}
-static inline void encode_mac_mobility_extcomm(int static_mac, u_int32_t seq,
+static inline void encode_mac_mobility_extcomm(int static_mac, uint32_t seq,
struct ecommunity_val *eval)
{
memset(eval, 0, sizeof(*eval));
eval->val[7] = seq & 0xff;
}
+static inline void encode_na_flag_extcomm(struct ecommunity_val *eval,
+ uint8_t na_flag)
+{
+ 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;
+}
+
static inline void ip_prefix_from_type5_prefix(struct prefix_evpn *evp,
struct prefix *ip)
{
memset(ip, 0, sizeof(struct prefix));
- if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
+ if (is_evpn_prefix_ipaddr_v4(evp)) {
ip->family = AF_INET;
- ip->prefixlen = evp->prefix.ip_prefix_length;
- memcpy(&(ip->u.prefix4),
- &(evp->prefix.ip.ip),
+ 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)) {
+ } else if (is_evpn_prefix_ipaddr_v6(evp)) {
ip->family = AF_INET6;
- ip->prefixlen = evp->prefix.ip_prefix_length;
- memcpy(&(ip->u.prefix6),
- &(evp->prefix.ip.ip),
+ 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(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(struct prefix_evpn *evp,
struct prefix *ip)
{
memset(ip, 0, sizeof(struct prefix));
- if (IS_EVPN_PREFIX_IPADDR_V4(evp)) {
+ if (is_evpn_prefix_ipaddr_v4(evp)) {
ip->family = AF_INET;
ip->prefixlen = IPV4_MAX_BITLEN;
- memcpy(&(ip->u.prefix4),
- &(evp->prefix.ip.ip),
+ memcpy(&(ip->u.prefix4), &(evp->prefix.macip_addr.ip.ip),
IPV4_MAX_BYTELEN);
- } else if (IS_EVPN_PREFIX_IPADDR_V6(evp)) {
+ } else if (is_evpn_prefix_ipaddr_v6(evp)) {
ip->family = AF_INET6;
ip->prefixlen = IPV6_MAX_BITLEN;
- memcpy(&(ip->u.prefix6),
- &(evp->prefix.ip.ip),
+ memcpy(&(ip->u.prefix6), &(evp->prefix.macip_addr.ip.ip),
IPV6_MAX_BYTELEN);
}
}
+static inline void ip_prefix_from_evpn_prefix(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_TYPE_2_ROUTE_PREFIXLEN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
p->prefix.route_type = BGP_EVPN_MAC_IP_ROUTE;
- memcpy(&p->prefix.mac.octet, mac->octet, ETH_ALEN);
- p->prefix.ip.ipa_type = IPADDR_NONE;
+ memcpy(&p->prefix.macip_addr.mac.octet, mac->octet, ETH_ALEN);
+ p->prefix.macip_addr.ip.ipa_type = IPADDR_NONE;
if (ip)
- memcpy(&p->prefix.ip, ip, sizeof(*ip));
+ memcpy(&p->prefix.macip_addr.ip, ip, sizeof(*ip));
}
static inline void build_type5_prefix_from_ip_prefix(struct prefix_evpn *evp,
memset(evp, 0, sizeof(struct prefix_evpn));
evp->family = AF_EVPN;
- evp->prefixlen = EVPN_TYPE_5_ROUTE_PREFIXLEN;
- evp->prefix.ip_prefix_length = ip_prefix->prefixlen;
+ evp->prefixlen = EVPN_ROUTE_PREFIXLEN;
evp->prefix.route_type = BGP_EVPN_IP_PREFIX_ROUTE;
- evp->prefix.ip.ipa_type = ip.ipa_type;
- memcpy(&evp->prefix.ip, &ip, sizeof(struct ipaddr));
+ 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,
{
memset(p, 0, sizeof(struct prefix_evpn));
p->family = AF_EVPN;
- p->prefixlen = EVPN_TYPE_3_ROUTE_PREFIXLEN;
+ p->prefixlen = EVPN_ROUTE_PREFIXLEN;
p->prefix.route_type = BGP_EVPN_IMET_ROUTE;
- p->prefix.ip.ipa_type = IPADDR_V4;
- p->prefix.ip.ipaddr_v4 = originator_ip;
+ p->prefix.imet_addr.ip.ipa_type = IPADDR_V4;
+ p->prefix.imet_addr.ip.ipaddr_v4 = originator_ip;
}
-static inline int advertise_type5_routes(struct bgp *bgp_vrf,
- afi_t afi)
+static inline void build_evpn_type4_prefix(struct prefix_evpn *p,
+ esi_t *esi,
+ struct in_addr originator_ip)
{
- if (!bgp_vrf->l3vni)
- return 0;
+ 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 int evpn_default_originate_set(struct bgp *bgp, afi_t afi,
+ safi_t safi)
+{
if (afi == AFI_IP &&
- CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV4_IN_EVPN))
+ CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
+ BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV4))
return 1;
-
- if (afi == AFI_IP6 &&
- CHECK_FLAG(bgp_vrf->vrf_flags, BGP_VRF_ADVERTISE_IPV6_IN_EVPN))
+ else if (afi == AFI_IP6 &&
+ CHECK_FLAG(bgp->af_flags[AFI_L2VPN][SAFI_EVPN],
+ BGP_L2VPN_EVPN_DEFAULT_ORIGINATE_IPV6))
return 1;
-
return 0;
}
-extern void evpn_rt_delete_auto(struct bgp*, vni_t, struct list*);
+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 int is_es_local(struct evpnes *es)
+{
+ return CHECK_FLAG(es->flags, EVPNES_LOCAL) ? 1 : 0;
+}
+
+extern void evpn_rt_delete_auto(struct bgp *, vni_t, struct list *);
extern void bgp_evpn_configure_export_rt_for_vrf(struct bgp *bgp_vrf,
struct ecommunity *ecomadd);
extern void bgp_evpn_unconfigure_export_rt_for_vrf(struct bgp *bgp_vrf,
struct ecommunity *ecomdel);
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);
struct in_addr originator_ip,
vrf_id_t tenant_vrf_id);
extern void bgp_evpn_free(struct bgp *bgp, struct bgpevpn *vpn);
+extern struct evpnes *bgp_evpn_lookup_es(struct bgp *bgp, esi_t *esi);
+extern struct evpnes *bgp_evpn_es_new(struct bgp *bgp, esi_t *esi,
+ struct ipaddr *originator_ip);
+extern void bgp_evpn_es_free(struct bgp *bgp, struct evpnes *es);
#endif /* _BGP_EVPN_PRIVATE_H */
projects / mirror_frr.git / blobdiff