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authorMaria Matejka <mq@jmq.cz>2018-11-21 20:37:11 +0100
committerJan Maria Matejka <mq@ucw.cz>2018-12-06 09:55:21 +0100
commit265419a3695b9a5c0a01d9fffc60f66fea8bee13 (patch)
tree069d7d7ba9cc5ef23c8babbcd8947e42448dd724 /nest/route.h
parent0642fb4d456fe12e1bbeb2ffc2149433f228c02e (diff)
Custom route attributes
For local route marking purposes, local custom route attributes may be defined. These attributes are seamlessly stripped after export filter to every real protocol like Kernel, BGP or OSPF, they however pass through pipes. We currently allow at most 256 custom attributes. This should be much faster than currently used bgp communities for marking routes.
Diffstat (limited to 'nest/route.h')
-rw-r--r--nest/route.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/nest/route.h b/nest/route.h
index 080bbf58..2600f087 100644
--- a/nest/route.h
+++ b/nest/route.h
@@ -471,13 +471,20 @@ typedef struct eattr {
} u;
} eattr;
+
#define EA_CODE(proto,id) (((proto) << 8) | (id))
-#define EA_PROTO(ea) ((ea) >> 8)
#define EA_ID(ea) ((ea) & 0xff)
+#define EA_PROTO(ea) ((ea) >> 8)
+#define EA_CUSTOM(id) ((id) | EA_CUSTOM_BIT)
+#define EA_IS_CUSTOM(ea) ((ea) & EA_CUSTOM_BIT)
+#define EA_CUSTOM_ID(ea) ((ea) & ~EA_CUSTOM_BIT)
+
+const char *ea_custom_name(uint ea);
#define EA_GEN_IGP_METRIC EA_CODE(PROTOCOL_NONE, 0)
#define EA_CODE_MASK 0xffff
+#define EA_CUSTOM_BIT 0x8000
#define EA_ALLOW_UNDEF 0x10000 /* ea_find: allow EAF_TYPE_UNDEF */
#define EA_BIT(n) ((n) << 24) /* Used in bitfield accessors */