IPv6 addresses.

#include "lwip/opt.h"

Data Structures
struct	ip6_addr

struct	ip6_addr_packed

Macros
#define	IP6_ADDR(ip6addr, index, a, b, c, d)
	Set an IPv6 partial address given by byte-parts. More...

#define	IP6_ADDR_ANY ((ip6_addr_t *)&ip6_addr_any)

#define	IP6_ADDR_BLOCK1(ip6addr) ((u16_t)(htonl((ip6addr)->addr[0]) >> 16) & 0xffff)
	Access address in 16-bit block. More...

#define	IP6_ADDR_BLOCK2(ip6addr) ((u16_t)(htonl((ip6addr)->addr[0])) & 0xffff)

#define	IP6_ADDR_BLOCK3(ip6addr) ((u16_t)(htonl((ip6addr)->addr[1]) >> 16) & 0xffff)

#define	IP6_ADDR_BLOCK4(ip6addr) ((u16_t)(htonl((ip6addr)->addr[1])) & 0xffff)

#define	IP6_ADDR_BLOCK5(ip6addr) ((u16_t)(htonl((ip6addr)->addr[2]) >> 16) & 0xffff)

#define	IP6_ADDR_BLOCK6(ip6addr) ((u16_t)(htonl((ip6addr)->addr[2])) & 0xffff)

#define	IP6_ADDR_BLOCK7(ip6addr) ((u16_t)(htonl((ip6addr)->addr[3]) >> 16) & 0xffff)

#define	IP6_ADDR_BLOCK8(ip6addr) ((u16_t)(htonl((ip6addr)->addr[3])) & 0xffff)

#define	ip6_addr_cmp(addr1, addr2)

#define	ip6_addr_cmp_solicitednode(ip6addr, sn_addr)

#define	ip6_addr_copy(dest, src)
	Copy IPv6 address - faster than ip6_addr_set: no NULL check. More...

#define	ip6_addr_debug_print(debug, ipaddr)

#define	IP6_ADDR_DEPRECATED 0x50

#define	IP6_ADDR_INVALID 0x00

#define	ip6_addr_isallnodes_iflocal(ip6addr)

#define	ip6_addr_isallnodes_linklocal(ip6addr)

#define	ip6_addr_isallrouters_linklocal(ip6addr)

#define	ip6_addr_isany(ip6addr)

#define	ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED)

#define	ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))

#define	ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID)

#define	ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))

#define	ip6_addr_isloopback(ip6addr)

#define	ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))

#define	ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff040000UL))

#define	ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff0e0000UL))

#define	ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff010000UL))

#define	ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff020000UL))

#define	ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff080000UL))

#define	ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff050000UL))

#define	ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED)

#define	ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))

#define	ip6_addr_issolicitednode(ip6addr)

#define	ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE)

#define	ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))

#define	ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */

#define	ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))

#define	ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))

#define	ip6_addr_multicast_scope(ip6addr) ((htonl((ip6addr)->addr[0]) >> 16) & 0xf)

#define	ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))

#define	ip6_addr_netcmp(addr1, addr2)
	Determine if two IPv6 address are on the same network. More...

#define	IP6_ADDR_PREFERRED 0x30

#define	ip6_addr_set(dest, src)
	Safely copy one IPv6 address to another (src may be NULL) More...

#define	ip6_addr_set_allnodes_linklocal(ip6addr)

#define	ip6_addr_set_allrouters_linklocal(ip6addr)

#define	ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr)
	Set address to ipv6 'any' (no need for htonl()) More...

#define	ip6_addr_set_hton(dest, src)
	Safely copy one IPv6 address to another and change byte order from host- to network-order. More...

#define	ip6_addr_set_loopback(ip6addr)
	Set address to ipv6 loopback address. More...

#define	ip6_addr_set_solicitednode(ip6addr, if_id)

#define	ip6_addr_set_zero(ip6addr)
	Set complete address to zero. More...

#define	IP6_ADDR_TENTATIVE 0x08

#define	IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */

#define	IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */

#define	IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */

#define	IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */

#define	IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */

#define	IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */

#define	IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */

#define	IP6_ADDR_VALID 0x10

#define	ip6_get_subnet_id(ip6addr) (htonl((ip6addr)->addr[2]) & 0x0000ffffUL)

#define	IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4

#define	IP6_MULTICAST_SCOPE_GLOBAL 0xe

#define	IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1

#define	IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2

#define	IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8

#define	IP6_MULTICAST_SCOPE_RESERVED 0x0

#define	IP6_MULTICAST_SCOPE_RESERVED0 0x0

#define	IP6_MULTICAST_SCOPE_RESERVED3 0x3

#define	IP6_MULTICAST_SCOPE_RESERVEDF 0xf

#define	IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5

#define	IP6ADDR_STRLEN_MAX 46

Typedefs
typedef struct ip6_addr_packed	ip6_addr_p_t

typedef typedefPACK_STRUCT_END struct ip6_addr	ip6_addr_t
	ip6_addr_t uses a struct for convenience only, so that the same defines can operate both on ip6_addr_t as well as on ip6_addr_p_t. More...

Functions
int	ip6addr_aton (const char cp, ip6_addr_t addr)
	Check whether "cp" is a valid ascii representation of an IPv6 address and convert to a binary address. More...

char *	ip6addr_ntoa (const ip6_addr_t *addr)
	returns ptr to static buffer; not reentrant! More...

char *	ip6addr_ntoa_r (const ip6_addr_t addr, char buf, int buflen)
	Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. More...

Variables
const ip6_addr_t	ip6_addr_any
	IP6_ADDR_ANY can be used as a fixed IPv6 address for the wildcard. More...

PACK_STRUCT_BEGIN struct ip6_addr_packed	PACK_STRUCT_STRUCT

#define IP6_ADDR	(	ip6addr,
		index,
		a,
		b,
		c,
		d
	)

Value:

(ip6addr)->addr[index] = ((u32_t)((d) & 0xff) << 24) | \
                           ((u32_t)((c) & 0xff) << 16) | \
                           ((u32_t)((b) & 0xff) << 8)  | \
                            (u32_t)((a) & 0xff)

Set an IPv6 partial address given by byte-parts.

Little-endian version, stored in network order (no htonl).

#define IP6_ADDR_ANY ((ip6_addr_t *)&ip6_addr_any)

Referenced by ip6_output_if_src(), mld6_send(), nd6_send_ns(), and nd6_send_rs().

#define IP6_ADDR_BLOCK1 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[0]) >> 16) & 0xffff)

Access address in 16-bit block.

Referenced by ip6_output().

#define IP6_ADDR_BLOCK2 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[0])) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK3 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[1]) >> 16) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK4 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[1])) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK5 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[2]) >> 16) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK6 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[2])) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK7 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[3]) >> 16) & 0xffff)

Referenced by ip6_output().

#define IP6_ADDR_BLOCK8 ( ip6addr ) ((u16_t)(htonl((ip6addr)->addr[3])) & 0xffff)

Referenced by ip6_output().

#define ip6_addr_cmp	(	addr1,
		addr2
	)

Value:

(((addr1)->addr[0] == (addr2)->addr[0]) && \
                                    ((addr1)->addr[1] == (addr2)->addr[1]) && \
                                    ((addr1)->addr[2] == (addr2)->addr[2]) && \
                                    ((addr1)->addr[3] == (addr2)->addr[3]))

Referenced by ip6_input(), ip6_output_if_src(), ip6_reass(), ip6_route(), mld6_joingroup(), mld6_leavegroup(), mld6_lookfor_group(), nd6_find_destination_cache_entry(), nd6_find_neighbor_cache_entry(), nd6_get_next_hop_entry(), nd6_get_router(), nd6_input(), nd6_reachability_hint(), netif_get_ip6_addr_match(), and udp_input().

#define ip6_addr_cmp_solicitednode	(	ip6addr,
		sn_addr
	)

Value:

(((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
                                    ((ip6addr)->addr[1] == 0) && \
                                    ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
                                    ((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3])))

Referenced by ip6_input().

#define ip6_addr_copy	(	dest,
		src
	)

Value:

do{(dest).addr[0] = (src).addr[0]; \
                                    (dest).addr[1] = (src).addr[1]; \
                                    (dest).addr[2] = (src).addr[2]; \
                                    (dest).addr[3] = (src).addr[3];}while(0)

Copy IPv6 address - faster than ip6_addr_set: no NULL check.

Referenced by icmp6_send_response(), ip6_input(), ip6_output(), ip6_output_if_src(), and nd6_get_next_hop_entry().

#define ip6_addr_debug_print	(	debug,
		ipaddr
	)

Value:

LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \
                      ipaddr != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0,    \
                      ipaddr != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0))

#define IP6_ADDR_DEPRECATED 0x50

#define IP6_ADDR_INVALID 0x00

Referenced by nd6_input(), nd6_tmr(), and netif_add().

#define ip6_addr_isallnodes_iflocal ( ip6addr )

Value:

(((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \
    ((ip6addr)->addr[1] == 0UL) && \
    ((ip6addr)->addr[2] == 0UL) && \
    ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))

Referenced by ip6_input().

#define ip6_addr_isallnodes_linklocal ( ip6addr )

Value:

(((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
    ((ip6addr)->addr[1] == 0UL) && \
    ((ip6addr)->addr[2] == 0UL) && \
    ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))

Referenced by ip6_input(), and mld6_input().

#define ip6_addr_isallrouters_linklocal ( ip6addr )

Value:

(((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
    ((ip6addr)->addr[1] == 0UL) && \
    ((ip6addr)->addr[2] == 0UL) && \
    ((ip6addr)->addr[3] == PP_HTONL(0x00000002UL)))

#define ip6_addr_isany ( ip6addr )

Value:

(((ip6addr) == NULL) || \
                             (((ip6addr)->addr[0] == 0) && \
                             ((ip6addr)->addr[1] == 0) && \
                             ((ip6addr)->addr[2] == 0) && \
                             ((ip6addr)->addr[3] == 0)))

Referenced by ip6_input(), ip6_output_if(), ip6_route(), mld6_input(), mld6_joingroup(), mld6_leavegroup(), mld6_send(), nd6_input(), nd6_new_destination_cache_entry(), and udp_input().

#define ip6_addr_isdeprecated ( addr_state ) (addr_state == IP6_ADDR_DEPRECATED)

#define ip6_addr_isglobal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_isinvalid ( addr_state ) (addr_state == IP6_ADDR_INVALID)

#define ip6_addr_islinklocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL))

Referenced by ip6_input(), ip6_route(), ip6_select_source_address(), nd6_get_next_hop_entry(), and nd6_input().

#define ip6_addr_isloopback ( ip6addr )

Value:

(((ip6addr)->addr[0] == 0UL) && \
                                      ((ip6addr)->addr[1] == 0UL) && \
                                      ((ip6addr)->addr[2] == 0UL) && \
                                      ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL)))

#define ip6_addr_ismulticast ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL))

Referenced by ethip6_output(), icmp6_input(), ip6_input(), nd6_input(), and udp_input().

#define ip6_addr_ismulticast_adminlocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff040000UL))

#define ip6_addr_ismulticast_global ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff0e0000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_ismulticast_iflocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff010000UL))

Referenced by ip6_select_source_address(), and mld6_input().

#define ip6_addr_ismulticast_linklocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff020000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_ismulticast_orglocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff080000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_ismulticast_sitelocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xff050000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_ispreferred ( addr_state ) (addr_state == IP6_ADDR_PREFERRED)

#define ip6_addr_issitelocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_issolicitednode ( ip6addr )

Value:

( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \
        ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \
        (((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) )

Referenced by ip6_input().

#define ip6_addr_istentative ( addr_state ) (addr_state & IP6_ADDR_TENTATIVE)

Referenced by nd6_input(), and nd6_tmr().

#define ip6_addr_isuniquelocal ( ip6addr ) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL))

Referenced by ip6_select_source_address().

#define ip6_addr_isvalid ( addr_state ) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */

Referenced by ip6_input(), ip6_output_if_src(), ip6_route(), ip6_select_source_address(), mld6_send(), nd6_input(), nd6_is_prefix_in_netif(), nd6_send_ns(), and nd6_send_rs().

#define ip6_addr_multicast_prefix_flag ( ip6addr ) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL))

#define ip6_addr_multicast_rendezvous_flag ( ip6addr ) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL))

#define ip6_addr_multicast_scope ( ip6addr ) ((htonl((ip6addr)->addr[0]) >> 16) & 0xf)

#define ip6_addr_multicast_transient_flag ( ip6addr ) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL))

#define ip6_addr_netcmp	(	addr1,
		addr2
	)

Value:

(((addr1)->addr[0] == (addr2)->addr[0]) && \

((addr1)->addr[1] == (addr2)->addr[1]))

Determine if two IPv6 address are on the same network.

addr1 IPv6 address 1
addr2 IPv6 address 2
Returns
!0 if the network identifiers of both address match

Referenced by ip6_route(), ip6_select_source_address(), nd6_get_onlink_prefix(), and nd6_is_prefix_in_netif().

#define IP6_ADDR_PREFERRED 0x30

Referenced by nd6_tmr(), and netif_create_ip6_linklocal_address().

#define ip6_addr_set	(	dest,
		src
	)

Value:

do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \
                                   (dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \
                                   (dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \
                                   (dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3];}while(0)

Safely copy one IPv6 address to another (src may be NULL)

Referenced by mld6_new_group(), mld6_send(), nd6_get_next_hop_entry(), nd6_input(), nd6_new_onlink_prefix(), nd6_new_router(), nd6_send_na(), nd6_send_ns(), and nd6_send_q().

#define ip6_addr_set_allnodes_linklocal ( ip6addr )

Value:

do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
                (ip6addr)->addr[1] = 0; \
                (ip6addr)->addr[2] = 0; \
                (ip6addr)->addr[3] = PP_HTONL(0x00000001UL);}while(0)

Referenced by nd6_send_na().

#define ip6_addr_set_allrouters_linklocal ( ip6addr )

Value:

do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
                (ip6addr)->addr[1] = 0; \
                (ip6addr)->addr[2] = 0; \
                (ip6addr)->addr[3] = PP_HTONL(0x00000002UL);}while(0)

Referenced by nd6_send_rs().

#define ip6_addr_set_any ( ip6addr ) ip6_addr_set_zero(ip6addr)

Set address to ipv6 'any' (no need for htonl())

Referenced by ip6_input(), and nd6_get_next_hop_entry().

#define ip6_addr_set_hton	(	dest,
		src
	)

Value:

do{(dest)->addr[0] = (src) == NULL ? 0 : htonl((src)->addr[0]); \
                                        (dest)->addr[1] = (src) == NULL ? 0 : htonl((src)->addr[1]); \
                                        (dest)->addr[2] = (src) == NULL ? 0 : htonl((src)->addr[2]); \
                                        (dest)->addr[3] = (src) == NULL ? 0 : htonl((src)->addr[3]);}while(0)

Safely copy one IPv6 address to another and change byte order from host- to network-order.

#define ip6_addr_set_loopback ( ip6addr )

Value:

do{(ip6addr)->addr[0] = 0; \
                                          (ip6addr)->addr[1] = 0; \
                                          (ip6addr)->addr[2] = 0; \
                                          (ip6addr)->addr[3] = PP_HTONL(0x00000001UL);}while(0)

Set address to ipv6 loopback address.

#define ip6_addr_set_solicitednode	(	ip6addr,
		if_id
	)

Value:

do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \
                (ip6addr)->addr[1] = 0; \
                (ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \
                (ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id));}while(0)

Referenced by nd6_input(), nd6_send_na(), nd6_send_ns(), and nd6_tmr().

#define ip6_addr_set_zero ( ip6addr )

Value:

do{(ip6addr)->addr[0] = 0; \
                                         (ip6addr)->addr[1] = 0; \
                                         (ip6addr)->addr[2] = 0; \
                                         (ip6addr)->addr[3] = 0;}while(0)

Set complete address to zero.

Referenced by nd6_free_neighbor_cache_entry(), and netif_add().

#define IP6_ADDR_TENTATIVE 0x08

Referenced by nd6_tmr(), and netif_create_ip6_linklocal_address().

#define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */

#define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */

#define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */

#define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */

#define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */

#define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */

#define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */

#define IP6_ADDR_VALID 0x10

Referenced by netif_init().

#define ip6_get_subnet_id ( ip6addr ) (htonl((ip6addr)->addr[2]) & 0x0000ffffUL)

#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4

#define IP6_MULTICAST_SCOPE_GLOBAL 0xe

#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1

#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2

#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8

#define IP6_MULTICAST_SCOPE_RESERVED 0x0

#define IP6_MULTICAST_SCOPE_RESERVED0 0x0

#define IP6_MULTICAST_SCOPE_RESERVED3 0x3

#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf

#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5

#define IP6ADDR_STRLEN_MAX 46

typedef struct ip6_addr_packed ip6_addr_p_t

typedef typedefPACK_STRUCT_END struct ip6_addr ip6_addr_t

ip6_addr_t uses a struct for convenience only, so that the same defines can operate both on ip6_addr_t as well as on ip6_addr_p_t.

int ip6addr_aton	(	const char *	cp,
		ip6_addr_t *	addr
	)

Check whether "cp" is a valid ascii representation of an IPv6 address and convert to a binary address.

Returns 1 if the address is valid, 0 if not.

Parameters

cp	IPv6 address in ascii representation (e.g. "FF01::1")
addr	pointer to which to save the ip address in network order

Returns: 1 if cp could be converted to addr, 0 on failure

References htonl, isdigit, islower, and isxdigit.

char* ip6addr_ntoa ( const ip6_addr_t * addr )

returns ptr to static buffer; not reentrant!

Parameters

addr	ip6 address in network order to convert

Returns: pointer to a global static (!) buffer that holds the ASCII representation of addr

References ip6addr_ntoa_r().

char* ip6addr_ntoa_r	(	const ip6_addr_t *	addr,
		char *	buf,
		int	buflen
	)

Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used.

Parameters

addr	ip6 address in network order to convert
buf	target buffer where the string is stored
buflen	length of buf

Returns: either pointer to buf which now holds the ASCII representation of addr or NULL if buf was too small

References htonl, NULL, and xchar.

Referenced by ip6addr_ntoa().

const ip6_addr_t ip6_addr_any

IP6_ADDR_ANY can be used as a fixed IPv6 address for the wildcard.

PACK_STRUCT_BEGIN struct ip6_addr_packed PACK_STRUCT_STRUCT

Microchip® Advanced Software Framework

Data Structures

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