27 #ifndef NET_IPV6_ADDR_H 28 #define NET_IPV6_ADDR_H 43 #define IPV6_ADDR_BIT_LEN (128) 45 #ifdef MODULE_IPV4_ADDR 49 #define IPV6_ADDR_MAX_STR_LEN (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255")) 54 #define IPV6_ADDR_MAX_STR_LEN (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff")) 69 #define IPV6_ADDR_SITE_LOCAL_PREFIX (0xfec0) 88 #define IPV6_ADDR_UNSPECIFIED {{ 0x00, 0x00, 0x00, 0x00, \ 89 0x00, 0x00, 0x00, 0x00, \ 90 0x00, 0x00, 0x00, 0x00, \ 91 0x00, 0x00, 0x00, 0x00 }} 100 #define IPV6_ADDR_LOOPBACK {{ 0x00, 0x00, 0x00, 0x00, \ 101 0x00, 0x00, 0x00, 0x00, \ 102 0x00, 0x00, 0x00, 0x00, \ 103 0x00, 0x00, 0x00, 0x01 }} 111 #define IPV6_ADDR_LINK_LOCAL_PREFIX {{ 0xfe, 0x80, 0x00, 0x00, \ 112 0x00, 0x00, 0x00, 0x00, \ 113 0x00, 0x00, 0x00, 0x00, \ 114 0x00, 0x00, 0x00, 0x00 }} 124 #define IPV6_ADDR_ALL_NODES_IF_LOCAL {{ 0xff, 0x01, 0x00, 0x00, \ 125 0x00, 0x00, 0x00, 0x00, \ 126 0x00, 0x00, 0x00, 0x00, \ 127 0x00, 0x00, 0x00, 0x01 }} 137 #define IPV6_ADDR_ALL_NODES_LINK_LOCAL {{ 0xff, 0x02, 0x00, 0x00, \ 138 0x00, 0x00, 0x00, 0x00, \ 139 0x00, 0x00, 0x00, 0x00, \ 140 0x00, 0x00, 0x00, 0x01 }} 150 #define IPV6_ADDR_ALL_ROUTERS_IF_LOCAL {{ 0xff, 0x01, 0x00, 0x00, \ 151 0x00, 0x00, 0x00, 0x00, \ 152 0x00, 0x00, 0x00, 0x00, \ 153 0x00, 0x00, 0x00, 0x02 }} 163 #define IPV6_ADDR_ALL_ROUTERS_LINK_LOCAL {{ 0xff, 0x02, 0x00, 0x00, \ 164 0x00, 0x00, 0x00, 0x00, \ 165 0x00, 0x00, 0x00, 0x00, \ 166 0x00, 0x00, 0x00, 0x02 }} 177 #define IPV6_ADDR_ALL_ROUTERS_SITE_LOCAL {{ 0xff, 0x05, 0x00, 0x00, \ 178 0x00, 0x00, 0x00, 0x00, \ 179 0x00, 0x00, 0x00, 0x00, \ 180 0x00, 0x00, 0x00, 0x02 }} 190 #define IPV6_ADDR_SOLICITED_NODE_PREFIX {{ 0xff, 0x02, 0x00, 0x00, \ 191 0x00, 0x00, 0x00, 0x00, \ 192 0x00, 0x00, 0x00, 0x01, \ 193 0xff, 0x00, 0x00, 0x00 }} 208 #define IPV6_ADDR_MCAST_FLAG_TRANSIENT (0x01) 217 #define IPV6_ADDR_MCAST_FLAG_PREFIX_BASED (0x02) 226 #define IPV6_ADDR_MCAST_FLAG_EMBED_ON_RP (0x04) 238 #define IPV6_ADDR_MCAST_SCP_IF_LOCAL (0x1) 239 #define IPV6_ADDR_MCAST_SCP_LINK_LOCAL (0x2) 251 #define IPV6_ADDR_MCAST_SCP_REALM_LOCAL (0x3) 252 #define IPV6_ADDR_MCAST_SCP_ADMIN_LOCAL (0x4) 253 #define IPV6_ADDR_MCAST_SCP_SITE_LOCAL (0x5) 254 #define IPV6_ADDR_MCAST_SCP_ORG_LOCAL (0x8) 255 #define IPV6_ADDR_MCAST_SCP_GLOBAL (0xe) 265 extern const ipv6_addr_t ipv6_addr_unspecified; 341 return (memcmp(addr, &ipv6_addr_loopback,
sizeof(
ipv6_addr_t)) == 0);
378 (addr->
u16[5].
u16 == 0xffff));
395 return (addr->
u8[0] == 0xff);
415 return (memcmp(addr, &ipv6_addr_link_local_prefix,
sizeof(addr->
u64[0])) == 0) ||
458 return ((addr->
u8[0] == 0xfc) || (addr->
u8[0] == 0xfd));
501 return (memcmp(addr, &ipv6_addr_solicited_node_prefix,
590 memcpy(addr, &ipv6_addr_link_local_prefix,
sizeof(addr->
u64[0]));
622 memcpy(&addr->
u64[1], iid,
sizeof(addr->
u64[1]));
640 addr->
u8[1] = (((uint8_t)flags) << 4) | (((uint8_t) scope) & 0x0f);
656 memcpy(addr, &ipv6_addr_all_nodes_if_local,
sizeof(
ipv6_addr_t));
657 addr->
u8[1] = (uint8_t)scope;
673 memcpy(addr, &ipv6_addr_all_routers_if_local,
sizeof(
ipv6_addr_t));
674 addr->
u8[1] = (uint8_t)scope;
693 out->
u8[13] = in->
u8[13];
uint8_t u8[16]
divided by 16 8-bit words.
static void ipv6_addr_set_aiid(ipv6_addr_t *addr, uint8_t *iid)
Sets the 64-bit interface ID (as array) of a unicast or anycast IPv6 address.
static bool ipv6_addr_is_link_local(const ipv6_addr_t *addr)
Check if addr is a link-local address.
IPv6 address type and helper functions definitions.
#define IPV6_ADDR_MCAST_SCP_GLOBAL
global scope
static void ipv6_addr_set_all_nodes_multicast(ipv6_addr_t *addr, unsigned int scope)
Sets addr dynamically to an all nodes multicast IPv6 address (ff0S::1, where S is the scope)...
const ipv6_addr_t ipv6_addr_all_routers_site_local
const ipv6_addr_t ipv6_addr_all_nodes_if_local
static bool ipv6_addr_is_ipv4_compat(const ipv6_addr_t *addr)
Checks if addr is a IPv4-compatible IPv6 address.
network_uint64_t u64[2]
divided by 2 64-bit words.
const ipv6_addr_t ipv6_addr_all_routers_link_local
A 32 bit integer in big endian aka network byte order.
uint8_t ipv6_addr_match_prefix(const ipv6_addr_t *a, const ipv6_addr_t *b)
Checks up to which bit-count two IPv6 addresses match in their prefix.
const ipv6_addr_t ipv6_addr_loopback
network_uint16_t u16[8]
divided by 8 16-bit words.
A 16 bit integer in big endian aka network byte order.
static bool ipv6_addr_is_unique_local_unicast(const ipv6_addr_t *addr)
Check if addr is unique local unicast address.
static bool ipv6_addr_is_global(const ipv6_addr_t *addr)
Check if addr is global unicast address.
void ipv6_addr_init_iid(ipv6_addr_t *out, const uint8_t *iid, uint8_t bits)
Sets the last bits of IPv6 address out to iid.
static uint16_t byteorder_ntohs(network_uint16_t v)
Convert from network byte order to host byte order, 16 bit.
static void ipv6_addr_set_multicast(ipv6_addr_t *addr, unsigned int flags, unsigned int scope)
Sets the bits for an address required to be a multicast address.
#define IPV6_ADDR_MCAST_SCP_LINK_LOCAL
link-local scope
const ipv6_addr_t ipv6_addr_all_routers_if_local
static bool ipv6_addr_is_loopback(const ipv6_addr_t *addr)
Checks if addr is a loopback address.
const ipv6_addr_t ipv6_addr_link_local_prefix
const ipv6_addr_t ipv6_addr_unspecified
In-memory constants of defined addresses and prefixes.
network_uint32_t u32[4]
divided by 4 32-bit words.
static void ipv6_addr_set_solicited_nodes(ipv6_addr_t *out, const ipv6_addr_t *in)
Set out to the solicited-node multicast address computed from in.
static int ipv6_addr_split_prefix(char *addr_str)
split IPv6 prefix string representation
static bool ipv6_addr_is_solicited_node(const ipv6_addr_t *addr)
Check if addr is solicited-node multicast address.
bool ipv6_addr_equal(const ipv6_addr_t *a, const ipv6_addr_t *b)
Checks if two IPv6 addresses are equal.
char * ipv6_addr_to_str(char *result, const ipv6_addr_t *addr, uint8_t result_len)
Converts an IPv6 address to its string representation.
static bool ipv6_addr_is_site_local(const ipv6_addr_t *addr)
Checks if addr is a site-local address.
const ipv6_addr_t ipv6_addr_all_nodes_link_local
uint16_t u16
16 bit representation
#define IPV6_ADDR_MCAST_SCP_SITE_LOCAL
site-local scope
static int ipv6_addr_split_iface(char *addr_str)
split IPv6 address + interface specifier
static void ipv6_addr_set_loopback(ipv6_addr_t *addr)
Sets addr dynamically to the loopback IPv6 address (::1).
static bool ipv6_addr_is_ipv4_mapped(const ipv6_addr_t *addr)
Checks if addr is a IPv4-mapped IPv6 address.
static network_uint32_t byteorder_htonl(uint32_t v)
Convert from host byte order to network byte order, 32 bit.
Functions to work with different byte orders.
static void ipv6_addr_set_link_local_prefix(ipv6_addr_t *addr)
Sets the first 64 bit of addr to link local prefix (fe08::/64).
Data type to represent an IPv4 address.
static void ipv6_addr_set_iid(ipv6_addr_t *addr, uint64_t iid)
Sets the 64-bit interface ID (as integer) of a unicast or anycast IPv6 address.
Data type to represent an IPv6 address.
static void ipv6_addr_set_all_routers_multicast(ipv6_addr_t *addr, unsigned int scope)
Sets addr dynamically to an all routers multicast IPv6 address (ff0S::2, where S is the scope)...
void ipv6_addr_init_prefix(ipv6_addr_t *out, const ipv6_addr_t *prefix, uint8_t bits)
Sets IPv6 address out with the first bits taken from prefix and leaves the remaining bits untouched...
ipv6_addr_t * ipv6_addr_from_str(ipv6_addr_t *result, const char *addr)
Converts an IPv6 address string representation to a byte-represented IPv6 address.
static bool ipv6_addr_is_unspecified(const ipv6_addr_t *addr)
Checks if addr is unspecified (all zero).
void ipv6_addr_print(const ipv6_addr_t *addr)
Print IPv6 address to stdout.
A 64 bit integer in big endian aka network byte order.
static bool ipv6_addr_is_multicast(const ipv6_addr_t *addr)
Check if addr is a multicast address.
static void ipv6_addr_set_unspecified(ipv6_addr_t *addr)
Sets addr dynamically to the unspecified IPv6 address (::).
#define IPV6_ADDR_SITE_LOCAL_PREFIX
The first 10 bits of a site-local IPv6 unicast address.
int ipv6_addr_split(char *addr_str, char seperator, int _default)
split IPv6 address string representation
const ipv6_addr_t ipv6_addr_solicited_node_prefix
static network_uint64_t byteorder_htonll(uint64_t v)
Convert from host byte order to network byte order, 64 bit.