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Fix bug #47641: lwIP would accept IPv6 source addresses from the network that are mapped IPv4 adresses

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Dirk Ziegelmeier
2016-04-27 21:35:34 +02:00
parent 30e6f908ee
commit 2e05856f90
2 changed files with 10 additions and 0 deletions
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2
src/include/lwip/ip6_addr.h
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@@ -179,6 +179,8 @@ Little-endian version, stored in network order (no htonl). */
#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))
#define ip6_addr_isipv6mappedipv4(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL)))
#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))
#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))
#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))