diff options
| -rw-r--r-- | lib/nexthop.h | 9 | ||||
| -rw-r--r-- | zebra/Makefile.am | 2 | ||||
| -rw-r--r-- | zebra/zebra_mpls.h | 155 | ||||
| -rw-r--r-- | zebra/zebra_vrf.h | 6 |
4 files changed, 171 insertions, 1 deletions
diff --git a/lib/nexthop.h b/lib/nexthop.h index 39e8b5425f..801904306e 100644 --- a/lib/nexthop.h +++ b/lib/nexthop.h @@ -25,6 +25,7 @@ #define _LIB_NEXTHOP_H #include "prefix.h" +#include "mpls.h" /* Maximum next hop string length - gateway + ifindex */ #define NEXTHOP_STRLEN (INET6_ADDRSTRLEN + 30) @@ -44,6 +45,14 @@ enum nexthop_types_t NEXTHOP_TYPE_BLACKHOLE, /* Null0 nexthop. */ }; +/* Nexthop label structure. */ +struct nexthop_label +{ + u_int8_t num_labels; + u_int8_t reserved[3]; + mpls_label_t label[0]; /* 1 or more labels. */ +}; + /* Nexthop structure. */ struct nexthop { diff --git a/zebra/Makefile.am b/zebra/Makefile.am index 32c94d3f0e..4b6f9188bf 100644 --- a/zebra/Makefile.am +++ b/zebra/Makefile.am @@ -46,7 +46,7 @@ noinst_HEADERS = \ interface.h ipforward.h irdp.h router-id.h kernel_socket.h \ rt_netlink.h zebra_fpm.h zebra_fpm_private.h zebra_rnh.h \ zebra_ptm_redistribute.h zebra_ptm.h zebra_routemap.h \ - zebra_ns.h zebra_vrf.h ioctl_solaris.h zebra_static.h + zebra_ns.h zebra_vrf.h ioctl_solaris.h zebra_static.h zebra_mpls.h zebra_LDADD = $(otherobj) ../lib/libzebra.la $(LIBCAP) diff --git a/zebra/zebra_mpls.h b/zebra/zebra_mpls.h new file mode 100644 index 0000000000..b24a58e16a --- /dev/null +++ b/zebra/zebra_mpls.h @@ -0,0 +1,155 @@ +/* + * Zebra MPLS Data structures and definitions + * Copyright (C) 2015 Cumulus Networks, Inc. + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the Free + * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#ifndef _ZEBRA_MPLS_H +#define _ZEBRA_MPLS_H + +#include "prefix.h" +#include "table.h" +#include "queue.h" +#include "hash.h" +#include "jhash.h" +#include "nexthop.h" +#include "vty.h" +#include "memory.h" +#include "mpls.h" +#include "zebra/zserv.h" + + +/* Definitions and macros. */ + +#define NHLFE_FAMILY(nhlfe) \ + (((nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6 || \ + (nhlfe)->nexthop->type == NEXTHOP_TYPE_IPV6_IFINDEX) ? AF_INET6 : AF_INET) + + +/* Typedefs */ + +typedef struct zebra_ile_t_ zebra_ile_t; +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; + +/* LSP types. */ +enum lsp_types_t +{ + ZEBRA_LSP_INVALID = 0, /* Invalid. */ + ZEBRA_LSP_STATIC = 1, /* Static LSP. */ +}; + +/* + * (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; +}; + +/* + * (Outgoing) nexthop label forwarding entry + */ +struct zebra_nhlfe_t_ +{ + /* Type of entry - static etc. */ + enum lsp_types_t type; + + /* Nexthop information (with outgoing label) */ + struct nexthop *nexthop; + + /* Backpointer to base entry. */ + zebra_lsp_t *lsp; + + /* 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; +}; + +/* + * Incoming label entry + */ +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; + +}; + +/* + * Label swap entry (ile -> list of nhlfes) + */ +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; + + /* 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; +}; + + +#endif /*_ZEBRA_MPLS_H */ diff --git a/zebra/zebra_vrf.h b/zebra/zebra_vrf.h index 456c6fdad8..1062c90988 100644 --- a/zebra/zebra_vrf.h +++ b/zebra/zebra_vrf.h @@ -74,6 +74,12 @@ struct zebra_vrf * Back pointer to the owning namespace. */ struct zebra_ns *zns; + + /* MPLS static LSP config table */ + struct hash *slsp_table; + + /* MPLS label forwarding table */ + struct hash *lsp_table; }; extern struct list *zvrf_list; |