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64c6252e7c
For the upcoming rework of protocol state information propagation, we need some more eattr types to be defined. These types are probably not defined completely and before using them for route attributes, you should check that they don't lack some crucial methods.
131 lines
3.6 KiB
C
131 lines
3.6 KiB
C
/*
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* BIRD Internet Routing Daemon -- Internal Data Types
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*
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* (c) 2022 Maria Matejka <mq@jmq.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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#ifndef _BIRD_TYPE_H_
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#define _BIRD_TYPE_H_
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#include "lib/birdlib.h"
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#include "lib/attrs.h"
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union bval {
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#define BVAL_ITEMS \
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struct { \
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u32 data; /* Integer type inherited from eattrs */ \
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PADDING(data, 0, 4); /* Must be padded on 64-bits */ \
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}; \
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struct { \
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u32 i; /* Integer type inherited from filters */ \
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PADDING(i, 0, 4); /* Must be padded on 64-bits */ \
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}; \
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const struct adata *ptr; /* Generic attribute data inherited from eattrs */ \
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const struct adata *ad; /* Generic attribute data inherited from filters */ \
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const void * v_ptr; /* Stored pointer */ \
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BVAL_ITEMS;
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};
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union bval_long {
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union bval bval; /* For direct assignments */
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BVAL_ITEMS; /* For item-wise access */
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u64 ec;
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lcomm lc;
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ip_addr ip;
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const net_addr *net;
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const char *s;
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const struct adata *bs;
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const struct f_tree *t;
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const struct f_trie *ti;
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const struct f_path_mask *path_mask;
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struct f_path_mask_item pmi;
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struct rte *rte;
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struct rte_block {
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struct rte **rte;
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uint len;
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} rte_block;
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};
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/* Internal types */
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enum btype {
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/* Nothing. Simply nothing. */
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T_VOID = 0,
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T_NONE = 0xff,
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/* Something but inaccessible. */
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T_OPAQUE = 0x02, /* Opaque byte string (not filterable) */
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T_IFACE = 0x0c, /* Pointer to an interface (inside adata) */
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T_ROUTES_BLOCK = 0x68, /* Block of route pointers */
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T_ROUTE = 0x6a, /* One route pointer */
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T_NEXTHOP_LIST = 0x6c, /* The whole nexthop block */
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T_HOSTENTRY = 0x6e, /* Hostentry with possible MPLS labels */
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/* Types shared with eattrs */
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T_INT = 0x01, /* 32-bit unsigned integer number */
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T_IP = 0x04, /* IP address */
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T_QUAD = 0x05, /* Router ID (IPv4 address) */
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T_PATH = 0x06, /* BGP AS path (encoding per RFC 1771:4.3) */
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T_CLIST = 0x0a, /* Set of u32's (e.g., a community list) */
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T_ECLIST = 0x0e, /* Set of pairs of u32's - ext. community list */
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T_LCLIST = 0x08, /* Set of triplets of u32's - large community list */
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T_STRING = 0x10,
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T_PTR = 0x11, /* Void pointer */
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T_ENUM_BGP_ORIGIN = 0x13, /* BGP Origin enum */
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T_ENUM_RA_PREFERENCE = 0x15, /* RA Preference enum */
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T_ENUM_FLOWSPEC_VALID = 0x17, /* Flowspec validation result */
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#define EAF_EMBEDDED 0x01 /* Data stored in eattr.u.data (part of type spec) */
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/* Otherwise, attribute data is adata */
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/* Other user visible types which fit in int */
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T_BOOL = 0xa0,
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T_PAIR = 0xa4, /* Notice that pair is stored as integer: first << 16 | second */
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/* Put enumerational types in 0x20..0x3f range */
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T_ENUM_LO = 0x12,
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T_ENUM_HI = 0x3f,
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T_ENUM_RTS = 0x31,
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T_ENUM_SCOPE = 0x33,
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T_ENUM_MPLS_POLICY = 0x35,
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T_ENUM_RTD = 0x37,
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T_ENUM_ROA = 0x39,
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T_ENUM_NETTYPE = 0x3b,
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T_ENUM_AF = 0x3d,
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/* new enums go here */
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#define T_ENUM T_ENUM_LO ... T_ENUM_HI
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/* Bigger ones */
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T_NET = 0xb0,
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T_PATH_MASK = 0xb8, /* mask for BGP path */
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T_EC = 0xbc, /* Extended community value, u64 */
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T_LC = 0xc0, /* Large community value, lcomm */
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T_RD = 0xc4, /* Route distinguisher for VPN addresses */
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T_PATH_MASK_ITEM = 0xc8, /* Path mask item for path mask constructors */
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T_BYTESTRING = 0xcc,
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T_ROA_AGGREGATED = 0xd0, /* ASN and maxlen tuple list */
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T_SET = 0x80,
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T_PREFIX_SET = 0x84,
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/* protocol */
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T_ENUM_STATE = 0xd1,
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T_BTIME = 0xd4,
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} PACKED;
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typedef enum btype btype;
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STATIC_ASSERT(sizeof(btype) == sizeof(byte));
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#endif
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