diff options
Diffstat (limited to 'zebra/zebra_mpls.h')
| -rw-r--r-- | zebra/zebra_mpls.h | 274 |
1 files changed, 124 insertions, 150 deletions
diff --git a/zebra/zebra_mpls.h b/zebra/zebra_mpls.h index a871fac651..6e45fb8649 100644 --- a/zebra/zebra_mpls.h +++ b/zebra/zebra_mpls.h @@ -40,9 +40,11 @@ #define MPLS_MAX_LABELS 2 /* Maximum # labels that can be pushed. */ -#define NHLFE_FAMILY(nhlfe) \ - (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 || \ - (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) ? AF_INET6 : AF_INET) +#define NHLFE_FAMILY(nhlfe) \ + (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 \ + || (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) \ + ? AF_INET6 \ + : AF_INET) /* Typedefs */ @@ -56,95 +58,89 @@ typedef struct zebra_lsp_t_ zebra_lsp_t; /* * (Outgoing) nexthop label forwarding entry configuration */ -struct zebra_snhlfe_t_ -{ - /* Nexthop information */ - enum nexthop_types_t gtype; - union g_addr gate; - char *ifname; - ifindex_t ifindex; - - /* Out label. */ - mpls_label_t out_label; - - /* Backpointer to base entry. */ - zebra_slsp_t *slsp; - - /* Pointers to more outgoing information for same in-label */ - zebra_snhlfe_t *next; - zebra_snhlfe_t *prev; +struct zebra_snhlfe_t_ { + /* Nexthop information */ + enum nexthop_types_t gtype; + union g_addr gate; + char *ifname; + ifindex_t ifindex; + + /* Out label. */ + mpls_label_t out_label; + + /* Backpointer to base entry. */ + zebra_slsp_t *slsp; + + /* Pointers to more outgoing information for same in-label */ + zebra_snhlfe_t *next; + zebra_snhlfe_t *prev; }; /* * (Outgoing) nexthop label forwarding entry */ -struct zebra_nhlfe_t_ -{ - /* Type of entry - static etc. */ - enum lsp_types_t type; +struct zebra_nhlfe_t_ { + /* Type of entry - static etc. */ + enum lsp_types_t type; - /* Nexthop information (with outgoing label) */ - struct nexthop *nexthop; + /* Nexthop information (with outgoing label) */ + struct nexthop *nexthop; - /* Backpointer to base entry. */ - zebra_lsp_t *lsp; + /* Backpointer to base entry. */ + zebra_lsp_t *lsp; - /* Runtime info - flags, pointers etc. */ - u_int32_t flags; + /* Runtime info - flags, pointers etc. */ + u_int32_t flags; #define NHLFE_FLAG_CHANGED (1 << 0) #define NHLFE_FLAG_SELECTED (1 << 1) #define NHLFE_FLAG_MULTIPATH (1 << 2) #define NHLFE_FLAG_DELETED (1 << 3) #define NHLFE_FLAG_INSTALLED (1 << 4) - zebra_nhlfe_t *next; - zebra_nhlfe_t *prev; - u_char distance; + zebra_nhlfe_t *next; + zebra_nhlfe_t *prev; + u_char distance; }; /* * Incoming label entry */ -struct zebra_ile_t_ -{ - mpls_label_t in_label; +struct zebra_ile_t_ { + mpls_label_t in_label; }; /* * Label swap entry static configuration. */ -struct zebra_slsp_t_ -{ - /* Incoming label */ - zebra_ile_t ile; - - /* List of outgoing nexthop static configuration */ - zebra_snhlfe_t *snhlfe_list; +struct zebra_slsp_t_ { + /* Incoming label */ + zebra_ile_t ile; + /* List of outgoing nexthop static configuration */ + zebra_snhlfe_t *snhlfe_list; }; /* * Label swap entry (ile -> list of nhlfes) */ -struct zebra_lsp_t_ -{ - /* Incoming label */ - zebra_ile_t ile; +struct zebra_lsp_t_ { + /* Incoming label */ + zebra_ile_t ile; - /* List of NHLFE, pointer to best and num equal-cost. */ - zebra_nhlfe_t *nhlfe_list; - zebra_nhlfe_t *best_nhlfe; - u_int32_t num_ecmp; + /* List of NHLFE, pointer to best and num equal-cost. */ + zebra_nhlfe_t *nhlfe_list; + zebra_nhlfe_t *best_nhlfe; + u_int32_t num_ecmp; - /* Flags */ - u_int32_t flags; + /* Flags */ + u_int32_t flags; #define LSP_FLAG_SCHEDULED (1 << 0) #define LSP_FLAG_INSTALLED (1 << 1) #define LSP_FLAG_CHANGED (1 << 2) - /* Address-family of NHLFE - saved here for delete. All NHLFEs */ - /* have to be of the same AF */ - u_char addr_family; + /* Address-family of NHLFE - saved here for delete. All NHLFEs */ + /* have to be of the same AF */ + u_char addr_family; }; @@ -153,58 +149,51 @@ struct zebra_lsp_t_ /* * String to label conversion, labels separated by '/'. */ -int -mpls_str2label (const char *label_str, u_int8_t *num_labels, - mpls_label_t *labels); +int mpls_str2label(const char *label_str, u_int8_t *num_labels, + mpls_label_t *labels); /* * Label to string conversion, labels in string separated by '/'. */ -char * -mpls_label2str (u_int8_t num_labels, mpls_label_t *labels, - char *buf, int len); +char *mpls_label2str(u_int8_t num_labels, mpls_label_t *labels, char *buf, + int len); /* * Install/uninstall a FEC-To-NHLFE (FTN) binding. */ -int -mpls_ftn_update (int add, struct zebra_vrf *zvrf, enum lsp_types_t type, - struct prefix *prefix, enum nexthop_types_t gtype, - union g_addr *gate, ifindex_t ifindex, u_int8_t distance, - mpls_label_t out_label); +int mpls_ftn_update(int add, struct zebra_vrf *zvrf, enum lsp_types_t type, + struct prefix *prefix, enum nexthop_types_t gtype, + union g_addr *gate, ifindex_t ifindex, u_int8_t distance, + mpls_label_t out_label); /* * Install/update a NHLFE for an LSP in the forwarding table. This may be * a new LSP entry or a new NHLFE for an existing in-label or an update of * the out-label for an existing NHLFE (update case). */ -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); +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); /* * Uninstall a particular NHLFE in the forwarding table. If this is * the only NHLFE, the entire LSP forwarding entry has to be deleted. */ -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); +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); /* * Uninstall all LDP NHLFEs for a particular LSP forwarding entry. * If no other NHLFEs exist, the entry would be deleted. */ -void -mpls_ldp_lsp_uninstall_all (struct hash_backet *backet, void *ctxt); +void mpls_ldp_lsp_uninstall_all(struct hash_backet *backet, void *ctxt); /* * Uninstall all LDP FEC-To-NHLFE (FTN) bindings of the given address-family. */ -void -mpls_ldp_ftn_uninstall_all (struct zebra_vrf *zvrf, int afi); +void mpls_ldp_ftn_uninstall_all(struct zebra_vrf *zvrf, int afi); #if defined(HAVE_CUMULUS) /* @@ -213,10 +202,12 @@ mpls_ldp_ftn_uninstall_all (struct zebra_vrf *zvrf, int afi); * be consistent - i.e., all paths either do a swap or do PHP. This is due * to current HW restrictions. */ -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); +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); #endif /* HAVE_CUMULUS */ /* @@ -226,10 +217,10 @@ zebra_mpls_lsp_label_consistent (struct zebra_vrf *zvrf, mpls_label_t in_label, * Note: The label operation (swap or PHP) is common for the LSP entry (all * NHLFEs). */ -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); +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); /* * Delete static LSP entry. This may be the delete of one particular @@ -238,137 +229,120 @@ zebra_mpls_static_lsp_add (struct zebra_vrf *zvrf, mpls_label_t in_label, * NOTE: Delete of the only NHLFE will also end up deleting the entire * LSP configuration. */ -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); +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); /* * Schedule all MPLS label forwarding entries for processing. * Called upon changes that may affect one or more of them such as * interface or nexthop state changes. */ -void -zebra_mpls_lsp_schedule (struct zebra_vrf *zvrf); +void zebra_mpls_lsp_schedule(struct zebra_vrf *zvrf); /* * Display MPLS label forwarding table for a specific LSP * (VTY command handler). */ -void -zebra_mpls_print_lsp (struct vty *vty, struct zebra_vrf *zvrf, mpls_label_t label, - u_char use_json); +void zebra_mpls_print_lsp(struct vty *vty, struct zebra_vrf *zvrf, + mpls_label_t label, u_char use_json); /* * Display MPLS label forwarding table (VTY command handler). */ -void -zebra_mpls_print_lsp_table (struct vty *vty, struct zebra_vrf *zvrf, - u_char use_json); +void zebra_mpls_print_lsp_table(struct vty *vty, struct zebra_vrf *zvrf, + u_char use_json); /* * Display MPLS LSP configuration of all static LSPs (VTY command handler). */ -int -zebra_mpls_write_lsp_config (struct vty *vty, struct zebra_vrf *zvrf); +int zebra_mpls_write_lsp_config(struct vty *vty, struct zebra_vrf *zvrf); /* * Called upon process exiting, need to delete LSP forwarding * entries from the kernel. * NOTE: Currently supported only for default VRF. */ -void -zebra_mpls_close_tables (struct zebra_vrf *zvrf); +void zebra_mpls_close_tables(struct zebra_vrf *zvrf); /* * Allocate MPLS tables for this VRF. * NOTE: Currently supported only for default VRF. */ -void -zebra_mpls_init_tables (struct zebra_vrf *zvrf); +void zebra_mpls_init_tables(struct zebra_vrf *zvrf); /* * Global MPLS initialization. */ -void -zebra_mpls_init (void); +void zebra_mpls_init(void); /* * MPLS VTY. */ -void -zebra_mpls_vty_init (void); +void zebra_mpls_vty_init(void); /* Inline functions. */ /* * Distance (priority) definition for LSP NHLFE. */ -static inline u_char -lsp_distance (enum lsp_types_t type) +static inline u_char lsp_distance(enum lsp_types_t type) { - if (type == ZEBRA_LSP_STATIC) - return (route_distance (ZEBRA_ROUTE_STATIC)); + if (type == ZEBRA_LSP_STATIC) + return (route_distance(ZEBRA_ROUTE_STATIC)); - return 150; + return 150; } /* * Map RIB type to LSP type. Used when labeled-routes from BGP * are converted into LSPs. */ -static inline enum lsp_types_t -lsp_type_from_rib_type (int rib_type) +static inline enum lsp_types_t lsp_type_from_rib_type(int rib_type) { - switch (rib_type) - { - case ZEBRA_ROUTE_STATIC: - return ZEBRA_LSP_STATIC; - default: - return ZEBRA_LSP_NONE; - } + switch (rib_type) { + case ZEBRA_ROUTE_STATIC: + return ZEBRA_LSP_STATIC; + default: + return ZEBRA_LSP_NONE; + } } /* NHLFE type as printable string. */ -static inline const char * -nhlfe_type2str(enum lsp_types_t lsp_type) +static inline const char *nhlfe_type2str(enum lsp_types_t lsp_type) { - switch (lsp_type) - { - case ZEBRA_LSP_STATIC: - return "Static"; - case ZEBRA_LSP_LDP: - return "LDP"; - default: - return "Unknown"; - } + switch (lsp_type) { + case ZEBRA_LSP_STATIC: + return "Static"; + case ZEBRA_LSP_LDP: + return "LDP"; + default: + return "Unknown"; + } } -static inline void -mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf) +static inline void mpls_mark_lsps_for_processing(struct zebra_vrf *zvrf) { - if (!zvrf) - return; + if (!zvrf) + return; - zvrf->mpls_flags |= MPLS_FLAG_SCHEDULE_LSPS; + zvrf->mpls_flags |= MPLS_FLAG_SCHEDULE_LSPS; } -static inline void -mpls_unmark_lsps_for_processing(struct zebra_vrf *zvrf) +static inline void mpls_unmark_lsps_for_processing(struct zebra_vrf *zvrf) { - if (!zvrf) - return; + if (!zvrf) + return; - zvrf->mpls_flags &= ~MPLS_FLAG_SCHEDULE_LSPS; + zvrf->mpls_flags &= ~MPLS_FLAG_SCHEDULE_LSPS; } -static inline int -mpls_should_lsps_be_processed(struct zebra_vrf *zvrf) +static inline int mpls_should_lsps_be_processed(struct zebra_vrf *zvrf) { - if (!zvrf) - return 0; + if (!zvrf) + return 0; - return ((zvrf->mpls_flags & MPLS_FLAG_SCHEDULE_LSPS) ? 1 : 0); + return ((zvrf->mpls_flags & MPLS_FLAG_SCHEDULE_LSPS) ? 1 : 0); } /* Global variables. */ |