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New uip_is_addr macros for multicast addresses

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This commit is contained in:
George Oikonomou 2011-11-11 11:34:05 +00:00 committed by George Oikonomou
parent be098f39e8
commit 68c5584488
1 changed files with 29 additions and 0 deletions
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29
core/net/ip/uip.h
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@ -2093,6 +2093,35 @@ CCIF extern uip_lladdr_t uip_lladdr;
#define uip_is_addr_mcast(a) \
(((a)->u8[0]) == 0xFF)
/**
* \brief is address a global multicast address (FFxE::/16),
* a is of type uip_ip6addr_t*
* */
#define uip_is_addr_mcast_global(a) \
((((a)->u8[0]) == 0xFF) && \
(((a)->u8[1] & 0x0F) == 0x0E))
/**
* \brief is address a non-routable multicast address.
* Scopes 1 (interface-local) and 2 (link-local) are non-routable
* See RFC4291 and draft-ietf-6man-multicast-scopes
* a is of type uip_ip6addr_t*
* */
#define uip_is_addr_mcast_non_routable(a) \
((((a)->u8[0]) == 0xFF) && \
(((a)->u8[1] & 0x0F) <= 0x02))
/**
* \brief is address a routable multicast address.
* Scope 3 (Realm-Local) or higher are routable
* Realm-Local scope is defined in draft-ietf-6man-multicast-scopes
* See RFC4291 and draft-ietf-6man-multicast-scopes
* a is of type uip_ip6addr_t*
* */
#define uip_is_addr_mcast_routable(a) \
((((a)->u8[0]) == 0xFF) && \
(((a)->u8[1] & 0x0F) > 0x02))
/**
* \brief is group-id of multicast address a
* the all nodes group-id