diff options
Diffstat (limited to 'zebra/zebra_mpls.h')
| -rw-r--r-- | zebra/zebra_mpls.h | 146 |
1 files changed, 141 insertions, 5 deletions
diff --git a/zebra/zebra_mpls.h b/zebra/zebra_mpls.h index a871fac651..e271edd2eb 100644 --- a/zebra/zebra_mpls.h +++ b/zebra/zebra_mpls.h @@ -52,6 +52,7 @@ typedef struct zebra_snhlfe_t_ zebra_snhlfe_t; typedef struct zebra_slsp_t_ zebra_slsp_t; typedef struct zebra_nhlfe_t_ zebra_nhlfe_t; typedef struct zebra_lsp_t_ zebra_lsp_t; +typedef struct zebra_fec_t_ zebra_fec_t; /* * (Outgoing) nexthop label forwarding entry configuration @@ -147,6 +148,27 @@ struct zebra_lsp_t_ u_char addr_family; }; +/* + * FEC to label binding. + */ +struct zebra_fec_t_ +{ + /* FEC (prefix) */ + struct route_node *rn; + + /* In-label - either statically bound or derived from label block. */ + mpls_label_t label; + + /* Label index (into global label block), if valid */ + u_int32_t label_index; + + /* Flags. */ + u_int32_t flags; +#define FEC_FLAG_CONFIGURED (1 << 0) + + /* Clients interested in this FEC. */ + struct list *client_list; +}; /* Function declarations. */ @@ -165,6 +187,116 @@ mpls_label2str (u_int8_t num_labels, mpls_label_t *labels, char *buf, int len); /* + * Add/update global label block. + */ +int +zebra_mpls_label_block_add (struct zebra_vrf *zvrf, u_int32_t start_label, + u_int32_t end_label); + +/* + * Delete global label block. + */ +int +zebra_mpls_label_block_del (struct zebra_vrf *vrf); + +/* + * Display MPLS global label block configuration (VTY command handler). + */ +int +zebra_mpls_write_label_block_config (struct vty *vty, struct zebra_vrf *vrf); + +/* + * Install dynamic LSP entry. + */ +int +zebra_mpls_lsp_install (struct zebra_vrf *zvrf, struct route_node *rn, struct rib *rib); + +/* + * Uninstall dynamic LSP entry, if any. + */ +int +zebra_mpls_lsp_uninstall (struct zebra_vrf *zvrf, struct route_node *rn, struct rib *rib); + +/* + * Registration from a client for the label binding for a FEC. If a binding + * already exists, it is informed to the client. + * NOTE: If there is a manually configured label binding, that is used. + * Otherwise, if aa label index is specified, it means we have to allocate the + * label from a locally configured label block (SRGB), if one exists and index + * is acceptable. + */ +int +zebra_mpls_fec_register (struct zebra_vrf *zvrf, struct prefix *p, + u_int32_t label_index, struct zserv *client); + +/* + * Deregistration from a client for the label binding for a FEC. The FEC + * itself is deleted if no other registered clients exist and there is no + * label bound to the FEC. + */ +int +zebra_mpls_fec_unregister (struct zebra_vrf *zvrf, struct prefix *p, + struct zserv *client); + +/* + * Cleanup any FECs registered by this client. + */ +int +zebra_mpls_cleanup_fecs_for_client (struct zebra_vrf *zvrf, struct zserv *client); + +/* + * Return FEC (if any) to which this label is bound. + * Note: Only works for per-prefix binding and when the label is not + * implicit-null. + * TODO: Currently walks entire table, can optimize later with another + * hash.. + */ +zebra_fec_t * +zebra_mpls_fec_for_label (struct zebra_vrf *zvrf, mpls_label_t label); + +/* + * Inform if specified label is currently bound to a FEC or not. + */ +int +zebra_mpls_label_already_bound (struct zebra_vrf *zvrf, mpls_label_t label); + +/* + * Add static FEC to label binding. If there are clients registered for this + * FEC, notify them. If there are labeled routes for this FEC, install the + * label forwarding entry. + */ +int +zebra_mpls_static_fec_add (struct zebra_vrf *zvrf, struct prefix *p, + mpls_label_t in_label); + +/* + * Remove static FEC to label binding. If there are no clients registered + * for this FEC, delete the FEC; else notify clients. + * Note: Upon delete of static binding, if label index exists for this FEC, + * client may need to be updated with derived label. + */ +int +zebra_mpls_static_fec_del (struct zebra_vrf *zvrf, struct prefix *p); + +/* + * Display MPLS FEC to label binding configuration (VTY command handler). + */ +int +zebra_mpls_write_fec_config (struct vty *vty, struct zebra_vrf *zvrf); + +/* + * Display MPLS FEC to label binding (VTY command handler). + */ +void +zebra_mpls_print_fec_table (struct vty *vty, struct zebra_vrf *zvrf); + +/* + * Display MPLS FEC to label binding for a specific FEC (VTY command handler). + */ +void +zebra_mpls_print_fec (struct vty *vty, struct zebra_vrf *zvrf, struct prefix *p); + +/* * Install/uninstall a FEC-To-NHLFE (FTN) binding. */ int @@ -182,7 +314,7 @@ int mpls_lsp_install (struct zebra_vrf *zvrf, enum lsp_types_t type, mpls_label_t in_label, mpls_label_t out_label, enum nexthop_types_t gtype, union g_addr *gate, - char *ifname, ifindex_t ifindex); + ifindex_t ifindex); /* * Uninstall a particular NHLFE in the forwarding table. If this is @@ -191,7 +323,7 @@ mpls_lsp_install (struct zebra_vrf *zvrf, enum lsp_types_t type, int mpls_lsp_uninstall (struct zebra_vrf *zvrf, enum lsp_types_t type, mpls_label_t in_label, enum nexthop_types_t gtype, - union g_addr *gate, char *ifname, ifindex_t ifindex); + union g_addr *gate, ifindex_t ifindex); /* * Uninstall all LDP NHLFEs for a particular LSP forwarding entry. @@ -216,7 +348,7 @@ mpls_ldp_ftn_uninstall_all (struct zebra_vrf *zvrf, int afi); int zebra_mpls_lsp_label_consistent (struct zebra_vrf *zvrf, mpls_label_t in_label, mpls_label_t out_label, enum nexthop_types_t gtype, - union g_addr *gate, char *ifname, ifindex_t ifindex); + union g_addr *gate, ifindex_t ifindex); #endif /* HAVE_CUMULUS */ /* @@ -229,7 +361,7 @@ zebra_mpls_lsp_label_consistent (struct zebra_vrf *zvrf, mpls_label_t in_label, int zebra_mpls_static_lsp_add (struct zebra_vrf *zvrf, mpls_label_t in_label, mpls_label_t out_label, enum nexthop_types_t gtype, - union g_addr *gate, char *ifname, ifindex_t ifindex); + union g_addr *gate, ifindex_t ifindex); /* * Delete static LSP entry. This may be the delete of one particular @@ -241,7 +373,7 @@ zebra_mpls_static_lsp_add (struct zebra_vrf *zvrf, mpls_label_t in_label, int zebra_mpls_static_lsp_del (struct zebra_vrf *zvrf, mpls_label_t in_label, enum nexthop_types_t gtype, union g_addr *gate, - char *ifname, ifindex_t ifindex); + ifindex_t ifindex); /* * Schedule all MPLS label forwarding entries for processing. @@ -324,6 +456,8 @@ lsp_type_from_rib_type (int rib_type) { case ZEBRA_ROUTE_STATIC: return ZEBRA_LSP_STATIC; + case ZEBRA_ROUTE_BGP: + return ZEBRA_LSP_BGP; default: return ZEBRA_LSP_NONE; } @@ -339,6 +473,8 @@ nhlfe_type2str(enum lsp_types_t lsp_type) return "Static"; case ZEBRA_LSP_LDP: return "LDP"; + case ZEBRA_LSP_BGP: + return "BGP"; default: return "Unknown"; } |