diff options
Diffstat (limited to 'src/ip6.h')
| -rw-r--r-- | src/ip6.h | 9 |
1 files changed, 8 insertions, 1 deletions
@@ -98,11 +98,13 @@ } \ } +/* Check that two IPv6 addresses are equal */ static inline bool in6_equal(const struct in6_addr *a, const struct in6_addr *b) { return memcmp(a, b, sizeof(*a)) == 0; } +/* Check that two IPv6 addresses are equal in their network part */ static inline bool in6_equal_net(const struct in6_addr *a, const struct in6_addr *b, int prefix_len) { @@ -118,6 +120,7 @@ static inline bool in6_equal_net(const struct in6_addr *a, b->s6_addr[prefix_len / 8] >> (8 - (prefix_len % 8)); } +/* Check that two IPv6 addresses are equal in their machine part */ static inline bool in6_equal_mach(const struct in6_addr *a, const struct in6_addr *b, int prefix_len) { @@ -136,24 +139,28 @@ static inline bool in6_equal_mach(const struct in6_addr *a, (b->s6_addr[prefix_len / 8] & ((1U << (8 - (prefix_len % 8))) - 1)); } - +/* Check that the IPv6 is equal to the virtual router */ #define in6_equal_router(a) \ ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len) && \ in6_equal_mach(a, &slirp->vhost_addr6, slirp->vprefix_len)) || \ (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64) && \ in6_equal_mach(a, &slirp->vhost_addr6, 64))) +/* Check that the IPv6 is equal to the virtual DNS server */ #define in6_equal_dns(a) \ ((in6_equal_net(a, &slirp->vprefix_addr6, slirp->vprefix_len) && \ in6_equal_mach(a, &slirp->vnameserver_addr6, slirp->vprefix_len)) || \ (in6_equal_net(a, &(struct in6_addr)LINKLOCAL_ADDR, 64) && \ in6_equal_mach(a, &slirp->vnameserver_addr6, 64))) +/* Check that the IPv6 is equal to the host */ #define in6_equal_host(a) (in6_equal_router(a) || in6_equal_dns(a)) +/* Check that the IPv6 is within the sollicited node multicast network */ #define in6_solicitednode_multicast(a) \ (in6_equal_net(a, &(struct in6_addr)SOLICITED_NODE_PREFIX, 104)) +/* Check that the IPv6 is zero */ #define in6_zero(a) (in6_equal(a, &(struct in6_addr)ZERO_ADDR)) /* Compute emulated host MAC address from its ipv6 address */ |