77 #include "lib/random.h" 81 #define LOG_MODULE "IPv6 NDP" 82 #define LOG_LEVEL LOG_LEVEL_IPV6 97 #define UIP_IP_BUF ((struct uip_ip_hdr *)&uip_buf[UIP_LLH_LEN]) 98 #define UIP_ICMP_BUF ((struct uip_icmp_hdr *)&uip_buf[uip_l2_l3_hdr_len]) 100 #define UIP_ND6_RS_BUF ((uip_nd6_rs *)&uip_buf[uip_l2_l3_icmp_hdr_len]) 101 #define UIP_ND6_RA_BUF ((uip_nd6_ra *)&uip_buf[uip_l2_l3_icmp_hdr_len]) 102 #define UIP_ND6_NS_BUF ((uip_nd6_ns *)&uip_buf[uip_l2_l3_icmp_hdr_len]) 103 #define UIP_ND6_NA_BUF ((uip_nd6_na *)&uip_buf[uip_l2_l3_icmp_hdr_len]) 106 #define UIP_ND6_OPT_HDR_BUF ((uip_nd6_opt_hdr *)&uip_buf[uip_l2_l3_icmp_hdr_len + nd6_opt_offset]) 107 #define UIP_ND6_OPT_PREFIX_BUF ((uip_nd6_opt_prefix_info *)&uip_buf[uip_l2_l3_icmp_hdr_len + nd6_opt_offset]) 108 #define UIP_ND6_OPT_MTU_BUF ((uip_nd6_opt_mtu *)&uip_buf[uip_l2_l3_icmp_hdr_len + nd6_opt_offset]) 109 #define UIP_ND6_OPT_RDNSS_BUF ((uip_nd6_opt_dns *)&uip_buf[uip_l2_l3_icmp_hdr_len + nd6_opt_offset]) 112 #if UIP_ND6_SEND_NS || UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 113 static uint8_t nd6_opt_offset;
119 #if UIP_ND6_SEND_NS || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 123 #if !UIP_CONF_ROUTER // TBD see if we move it to ra_input 127 #if (!UIP_CONF_ROUTER || UIP_ND6_SEND_RA) 131 #if UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 147 create_llao(uint8_t *llao, uint8_t type) {
148 llao[UIP_ND6_OPT_TYPE_OFFSET] = type;
183 LOG_INFO(
"Received NS from ");
187 LOG_INFO_(
" with target address ");
188 LOG_INFO_6ADDR((uip_ipaddr_t *) (&UIP_ND6_NS_BUF->tgtipaddr));
192 #if UIP_CONF_IPV6_CHECKS 196 LOG_ERR(
"NS received is bad\n");
203 nd6_opt_offset = UIP_ND6_NS_LEN;
204 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
205 #if UIP_CONF_IPV6_CHECKS 207 LOG_ERR(
"NS received is bad\n");
212 case UIP_ND6_OPT_SLLAO:
214 #if UIP_CONF_IPV6_CHECKS 217 LOG_ERR(
"NS received is bad\n");
221 uip_lladdr_t lladdr_aligned;
223 nbr = uip_ds6_nbr_lookup(&
UIP_IP_BUF->srcipaddr);
226 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
228 const uip_lladdr_t *lladdr = uip_ds6_nbr_get_ll(nbr);
234 if(uip_ds6_nbr_update_ll(&nbr,
235 (
const uip_lladdr_t *)&lladdr_aligned)
240 nbr->state = NBR_STALE;
243 nbr->state = NBR_STALE;
247 #if UIP_CONF_IPV6_CHECKS 252 LOG_WARN(
"ND option not supported in NS");
258 addr = uip_ds6_addr_lookup(&UIP_ND6_NS_BUF->tgtipaddr);
262 #if UIP_ND6_DEF_MAXDADNS > 0 263 #if UIP_CONF_IPV6_CHECKS 265 LOG_ERR(
"NS received is bad\n");
272 flags = UIP_ND6_NA_FLAG_OVERRIDE;
283 #if UIP_CONF_IPV6_CHECKS 284 if(uip_ds6_is_my_addr(&
UIP_IP_BUF->srcipaddr)) {
291 LOG_ERR(
"NS received is bad\n");
300 flags = UIP_ND6_NA_FLAG_SOLICITED | UIP_ND6_NA_FLAG_OVERRIDE;
305 if(uip_ds6_addr_lookup(&
UIP_IP_BUF->destipaddr) == addr) {
308 flags = UIP_ND6_NA_FLAG_SOLICITED | UIP_ND6_NA_FLAG_OVERRIDE;
311 #if UIP_CONF_IPV6_CHECKS 312 LOG_ERR(
"NS received is bad\n");
324 flags = flags | UIP_ND6_NA_FLAG_ROUTER;
338 UIP_ND6_NA_BUF->flagsreserved = flags;
339 memcpy(&UIP_ND6_NA_BUF->tgtipaddr, &addr->ipaddr,
sizeof(uip_ipaddr_t));
341 create_llao(&
uip_buf[uip_l2_l3_icmp_hdr_len + UIP_ND6_NA_LEN],
351 LOG_INFO(
"Sending NA to ");
355 LOG_INFO_(
" with target address ");
356 LOG_INFO_6ADDR(&UIP_ND6_NA_BUF->tgtipaddr);
386 UIP_ND6_NS_BUF->reserved = 0;
393 if(!(uip_ds6_is_my_addr(tgt))) {
400 LOG_ERR(
"Dropping NS due to no suitable source address\n");
407 create_llao(&
uip_buf[uip_l2_l3_icmp_hdr_len + UIP_ND6_NS_LEN],
414 UIP_IP_BUF->len[1] = UIP_ICMPH_LEN + UIP_ND6_NS_LEN;
415 uip_len = UIP_IPH_LEN + UIP_ICMPH_LEN + UIP_ND6_NS_LEN;
422 LOG_INFO(
"Sending NS to ");
426 LOG_INFO_(
" with target address ");
457 uint8_t is_solicited;
459 uip_lladdr_t lladdr_aligned;
461 LOG_INFO(
"Received NA from ");
465 LOG_INFO_(
" with target address ");
466 LOG_INFO_6ADDR((uip_ipaddr_t *) (&UIP_ND6_NA_BUF->tgtipaddr));
475 is_router = ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_ROUTER));
477 ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_SOLICITED));
479 ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_OVERRIDE));
481 #if UIP_CONF_IPV6_CHECKS 486 LOG_ERR(
"NA received is bad\n");
492 nd6_opt_offset = UIP_ND6_NA_LEN;
494 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
495 #if UIP_CONF_IPV6_CHECKS 497 LOG_ERR(
"NA received is bad\n");
502 case UIP_ND6_OPT_TLLAO:
506 LOG_WARN(
"ND option not supported in NA\n");
511 addr = uip_ds6_addr_lookup(&UIP_ND6_NA_BUF->tgtipaddr);
514 #if UIP_ND6_DEF_MAXDADNS > 0 519 LOG_ERR(
"NA received is bad\n");
522 const uip_lladdr_t *lladdr;
523 nbr = uip_ds6_nbr_lookup(&UIP_ND6_NA_BUF->tgtipaddr);
527 lladdr = uip_ds6_nbr_get_ll(nbr);
540 if(uip_ds6_nbr_update_ll(&nbr,
541 (
const uip_lladdr_t *)&lladdr_aligned) < 0) {
551 nbr->state = NBR_STALE;
553 nbr->isrouter = is_router;
555 if(!is_override && is_llchange) {
556 if(nbr->state == NBR_REACHABLE) {
557 nbr->state = NBR_STALE;
565 if(is_override || !is_llchange ||
nd6_opt_llao == NULL) {
568 uip_ds6_nbr_update_ll(&nbr,
569 (
const uip_lladdr_t *)&lladdr_aligned)
581 if(nbr->isrouter && !is_router) {
582 defrt = uip_ds6_defrt_lookup(&
UIP_IP_BUF->srcipaddr);
584 uip_ds6_defrt_rm(defrt);
587 nbr->isrouter = is_router;
590 #if UIP_CONF_IPV6_QUEUE_PKT 598 if(uip_packetqueue_buflen(&nbr->packethandle) != 0) {
599 uip_len = uip_packetqueue_buflen(&nbr->packethandle);
601 uip_packetqueue_free(&nbr->packethandle);
620 LOG_INFO(
"Received RS from ");
628 #if UIP_CONF_IPV6_CHECKS 635 LOG_ERR(
"RS received is bad\n");
642 nd6_opt_offset = UIP_ND6_RS_LEN;
645 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
646 #if UIP_CONF_IPV6_CHECKS 648 LOG_ERR(
"RS received is bad\n");
653 case UIP_ND6_OPT_SLLAO:
657 LOG_WARN(
"ND option not supported in RS\n");
664 #if UIP_CONF_IPV6_CHECKS 666 LOG_ERR(
"RS received is bad\n");
670 uip_lladdr_t lladdr_aligned;
672 if((nbr = uip_ds6_nbr_lookup(&
UIP_IP_BUF->srcipaddr)) == NULL) {
675 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
678 const uip_lladdr_t *lladdr = uip_ds6_nbr_get_ll(nbr);
688 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
689 nbr->reachable = nbr_data.reachable;
690 nbr->sendns = nbr_data.sendns;
691 nbr->nscount = nbr_data.nscount;
695 #if UIP_CONF_IPV6_CHECKS 701 uip_ds6_send_ra_sollicited();
710 uip_nd6_ra_output(uip_ipaddr_t * dest)
730 UIP_ND6_RA_BUF->cur_ttl =
uip_ds6_if.cur_hop_limit;
732 UIP_ND6_RA_BUF->flags_reserved =
733 (UIP_ND6_M_FLAG << 7) | (UIP_ND6_O_FLAG << 6);
735 UIP_ND6_RA_BUF->router_lifetime =
uip_htons(UIP_ND6_ROUTER_LIFETIME);
738 UIP_ND6_RA_BUF->reachable_time = 0;
739 UIP_ND6_RA_BUF->retrans_timer = 0;
741 uip_len = UIP_IPH_LEN + UIP_ICMPH_LEN + UIP_ND6_RA_LEN;
742 nd6_opt_offset = UIP_ND6_RA_LEN;
748 if((prefix->isused) && (prefix->advertise)) {
749 UIP_ND6_OPT_PREFIX_BUF->type = UIP_ND6_OPT_PREFIX_INFO;
750 UIP_ND6_OPT_PREFIX_BUF->len = UIP_ND6_OPT_PREFIX_INFO_LEN / 8;
751 UIP_ND6_OPT_PREFIX_BUF->preflen = prefix->length;
752 UIP_ND6_OPT_PREFIX_BUF->flagsreserved1 = prefix->l_a_reserved;
753 UIP_ND6_OPT_PREFIX_BUF->validlt = uip_htonl(prefix->vlifetime);
754 UIP_ND6_OPT_PREFIX_BUF->preferredlt = uip_htonl(prefix->plifetime);
755 UIP_ND6_OPT_PREFIX_BUF->reserved2 = 0;
757 nd6_opt_offset += UIP_ND6_OPT_PREFIX_INFO_LEN;
758 uip_len += UIP_ND6_OPT_PREFIX_INFO_LEN;
769 UIP_ND6_OPT_MTU_BUF->type = UIP_ND6_OPT_MTU;
770 UIP_ND6_OPT_MTU_BUF->len = UIP_ND6_OPT_MTU_LEN >> 3;
771 UIP_ND6_OPT_MTU_BUF->reserved = 0;
773 UIP_ND6_OPT_MTU_BUF->mtu = uip_htonl(1500);
775 uip_len += UIP_ND6_OPT_MTU_LEN;
776 nd6_opt_offset += UIP_ND6_OPT_MTU_LEN;
781 uip_ipaddr_t *ip = &UIP_ND6_OPT_RDNSS_BUF->ip;
782 uip_ipaddr_t *dns = NULL;
783 UIP_ND6_OPT_RDNSS_BUF->type = UIP_ND6_OPT_RDNSS;
784 UIP_ND6_OPT_RDNSS_BUF->reserved = 0;
793 UIP_ND6_OPT_RDNSS_BUF->len = UIP_ND6_OPT_RDNSS_LEN + (i << 1);
794 LOG_INFO(
"%d nameservers reported\n", i);
795 uip_len += UIP_ND6_OPT_RDNSS_BUF->len << 3;
796 nd6_opt_offset += UIP_ND6_OPT_RDNSS_BUF->len << 3;
808 LOG_INFO(
"Sending RA to ");
835 UIP_IP_BUF->len[1] = UIP_ICMPH_LEN + UIP_ND6_RS_LEN;
836 uip_len = uip_l3_icmp_hdr_len + UIP_ND6_RS_LEN;
842 create_llao(&
uip_buf[uip_l2_l3_icmp_hdr_len + UIP_ND6_RS_LEN],
850 LOG_INFO(
"Sending RS to ");
870 uip_lladdr_t lladdr_aligned;
872 LOG_INFO(
"Received RA from ");
879 #if UIP_CONF_IPV6_CHECKS 883 LOG_ERR(
"RA received is bad");
888 if(UIP_ND6_RA_BUF->cur_ttl != 0) {
889 uip_ds6_if.cur_hop_limit = UIP_ND6_RA_BUF->cur_ttl;
890 LOG_INFO(
"uip_ds6_if.cur_hop_limit %u\n",
uip_ds6_if.cur_hop_limit);
893 if(UIP_ND6_RA_BUF->reachable_time != 0) {
895 uip_ntohl(UIP_ND6_RA_BUF->reachable_time)) {
896 uip_ds6_if.base_reachable_time = uip_ntohl(UIP_ND6_RA_BUF->reachable_time);
900 if(UIP_ND6_RA_BUF->retrans_timer != 0) {
901 uip_ds6_if.retrans_timer = uip_ntohl(UIP_ND6_RA_BUF->retrans_timer);
905 nd6_opt_offset = UIP_ND6_RA_LEN;
906 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
908 LOG_ERR(
"RA received is bad");
912 case UIP_ND6_OPT_SLLAO:
913 LOG_DBG(
"Processing SLLAO option in RA\n");
915 nbr = uip_ds6_nbr_lookup(&
UIP_IP_BUF->srcipaddr);
922 1, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
924 const uip_lladdr_t *lladdr = uip_ds6_nbr_get_ll(nbr);
929 nbr->state = NBR_STALE;
934 if(uip_ds6_nbr_update_ll(&nbr,
935 (
const uip_lladdr_t *)&lladdr_aligned) < 0) {
939 nbr->state = NBR_STALE;
944 case UIP_ND6_OPT_MTU:
945 LOG_DBG(
"Processing MTU option in RA\n");
949 case UIP_ND6_OPT_PREFIX_INFO:
950 LOG_DBG(
"Processing PREFIX option in RA\n");
952 if((uip_ntohl(nd6_opt_prefix_info->validlt) >=
953 uip_ntohl(nd6_opt_prefix_info->preferredlt))
956 if(nd6_opt_prefix_info->flagsreserved1 & UIP_ND6_RA_FLAG_ONLINK) {
958 uip_ds6_prefix_lookup(&nd6_opt_prefix_info->prefix,
959 nd6_opt_prefix_info->preflen);
961 if(nd6_opt_prefix_info->validlt != 0) {
963 prefix = uip_ds6_prefix_add(&nd6_opt_prefix_info->prefix,
964 nd6_opt_prefix_info->preflen,
965 uip_ntohl(nd6_opt_prefix_info->
968 prefix = uip_ds6_prefix_add(&nd6_opt_prefix_info->prefix,
969 nd6_opt_prefix_info->preflen, 0);
973 switch (nd6_opt_prefix_info->validlt) {
975 uip_ds6_prefix_rm(prefix);
978 prefix->isinfinite = 1;
981 LOG_DBG(
"Updating timer of prefix ");
982 LOG_DBG_6ADDR(&prefix->ipaddr);
983 LOG_DBG_(
" new value %"PRIu32
"\n", uip_ntohl(nd6_opt_prefix_info->validlt));
985 uip_ntohl(nd6_opt_prefix_info->validlt));
986 prefix->isinfinite = 0;
993 if((nd6_opt_prefix_info->flagsreserved1 & UIP_ND6_RA_FLAG_AUTONOMOUS)
994 && (nd6_opt_prefix_info->validlt != 0)
995 && (nd6_opt_prefix_info->preflen == UIP_DEFAULT_PREFIX_LEN)) {
999 addr = uip_ds6_addr_lookup(&
ipaddr);
1000 if((addr != NULL) && (addr->type == ADDR_AUTOCONF)) {
1003 if((uip_ntohl(nd6_opt_prefix_info->validlt) > 2 * 60 * 60) ||
1004 (uip_ntohl(nd6_opt_prefix_info->validlt) >
1006 LOG_DBG(
"Updating timer of address ");
1007 LOG_DBG_6ADDR(&addr->ipaddr);
1008 LOG_DBG_(
" new value %lu\n",
1009 (
unsigned long)uip_ntohl(nd6_opt_prefix_info->validlt));
1011 uip_ntohl(nd6_opt_prefix_info->validlt));
1014 LOG_DBG(
"Updating timer of address ");
1015 LOG_DBG_6ADDR(&addr->ipaddr);
1016 LOG_DBG_(
" new value %lu\n", (
unsigned long)(2 * 60 * 60));
1018 addr->isinfinite = 0;
1020 addr->isinfinite = 1;
1023 if(uip_ntohl(nd6_opt_prefix_info->validlt) ==
1035 #if UIP_ND6_RA_RDNSS 1036 case UIP_ND6_OPT_RDNSS:
1037 LOG_DBG(
"Processing RDNSS option\n");
1038 uint8_t naddr = (UIP_ND6_OPT_RDNSS_BUF->len - 1) / 2;
1039 uip_ipaddr_t *ip = (uip_ipaddr_t *)(&UIP_ND6_OPT_RDNSS_BUF->ip);
1040 LOG_DBG(
"got %d nameservers\n", naddr);
1041 while(naddr-- > 0) {
1042 LOG_DBG(
"nameserver: ");
1044 LOG_DBG_(
" lifetime: %"PRIx32
"\n", uip_ntohl(UIP_ND6_OPT_RDNSS_BUF->lifetime));
1051 LOG_ERR(
"ND option not supported in RA\n");
1057 defrt = uip_ds6_defrt_lookup(&
UIP_IP_BUF->srcipaddr);
1058 if(UIP_ND6_RA_BUF->router_lifetime != 0) {
1065 long)(uip_ntohs(UIP_ND6_RA_BUF->router_lifetime)));
1068 (
unsigned long)(uip_ntohs(UIP_ND6_RA_BUF->router_lifetime)));
1072 uip_ds6_defrt_rm(defrt);
1076 #if UIP_CONF_IPV6_QUEUE_PKT 1085 if(nbr != NULL && uip_packetqueue_buflen(&nbr->packethandle) != 0) {
1086 uip_len = uip_packetqueue_buflen(&nbr->packethandle);
1088 uip_packetqueue_free(&nbr->packethandle);
1102 UIP_ICMP6_HANDLER(ns_input_handler,
ICMP6_NS, UIP_ICMP6_HANDLER_CODE_ANY,
1106 UIP_ICMP6_HANDLER(na_input_handler,
ICMP6_NA, UIP_ICMP6_HANDLER_CODE_ANY,
1110 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA 1111 UIP_ICMP6_HANDLER(rs_input_handler,
ICMP6_RS, UIP_ICMP6_HANDLER_CODE_ANY,
1115 #if !UIP_CONF_ROUTER 1116 UIP_ICMP6_HANDLER(ra_input_handler,
ICMP6_RA, UIP_ICMP6_HANDLER_CODE_ANY,
1134 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA 1139 #if !UIP_CONF_ROUTER static uip_ipaddr_t ipaddr
Pointer to prefix information option in uip_buf.
#define UIP_IP_BUF
Pointer to IP header.
An entry in the default router list.
uip_lladdr_t uip_lladdr
Host L2 address.
Header file for ICMPv6 message and error handing (RFC 4443)
#define UIP_ND6_OPT_LLAO_LEN
length of a ND6 LLAO option for default L2 type (e.g.
static uip_ds6_nbr_t * nbr
Pointer to llao option in uip_buf.
unsigned long stimer_remaining(struct stimer *t)
The time until the timer expires.
uint16_t uip_len
The length of the packet in the uip_buf buffer.
static uip_ds6_addr_t * addr
Pointer to a nbr cache entry.
void ra_input(void)
Process a Router Advertisement.
#define UIP_ICMP_BUF
Pointer to ICMP header.
uint32_t uip_nameserver_next_expiration(void)
Get next expiration time.
#define UIP_NAMESERVER_INFINITE_LIFETIME
Infinite Lifetime indicator.
void uip_nd6_init()
Initialise the uIP ND core.
void uip_ds6_set_addr_iid(uip_ipaddr_t *ipaddr, uip_lladdr_t *lladdr)
set the last 64 bits of an IP address based on the MAC address
static int extract_lladdr_from_llao_aligned(uip_lladdr_t *dest)
Pointer to a prefix list entry.
unsigned long clock_seconds(void)
Get the current value of the platform seconds.
uip_ds6_prefix_t uip_ds6_prefix_list[UIP_DS6_PREFIX_NB]
Prefix list.
uint16_t uip_htons(uint16_t val)
Convert a 16-bit quantity from host byte order to network byte order.
Header file for IPv6-related data structures.
int uip_ds6_dad_failed(uip_ds6_addr_t *addr)
Callback when DAD failed.
#define ICMP6_RA
Router Advertisement.
#define UIP_LLADDR_LEN
802.15.4 address
void uip_nd6_ns_output(uip_ipaddr_t *src, uip_ipaddr_t *dest, uip_ipaddr_t *tgt)
Send a neighbor solicitation, send a Neighbor Advertisement.
void stimer_set(struct stimer *t, unsigned long interval)
Set a timer.
void uip_nameserver_update(const uip_ipaddr_t *nameserver, uint32_t lifetime)
Initialize the module variables.
static uint8_t * nd6_opt_llao
Offset from the end of the icmpv6 header to the option in uip_buf.
#define uip_create_linklocal_allnodes_mcast(a)
set IP address a to the link local all-nodes multicast address
#define UIP_ND6_INFINITE_LIFETIME
INFINITE lifetime.
uIP Name Server interface
#define uip_is_addr_unspecified(a)
Is IPv6 address a the unspecified address a is of type uip_ipaddr_t.
#define uip_buf
Macro to access uip_aligned_buf as an array of bytes.
Unicast address structure.
#define uip_ipaddr_copy(dest, src)
Copy an IP address from one place to another.
#define uip_is_addr_solicited_node(a)
is addr (a) a solicited node multicast address, see RFC 4291 a is of type uip_ipaddr_t* ...
#define ICMP6_NS
Neighbor Solicitation.
#define UIP_STAT(s)
The uIP TCP/IP statistics.
#define uip_create_linklocal_allrouters_mcast(a)
set IP address a to the link local all-routers multicast address
#define ADDR_TENTATIVE
Possible states for the an address (RFC 4862)
ND option prefix information.
uip_ds6_addr_t * uip_ds6_addr_add(uip_ipaddr_t *ipaddr, unsigned long vlifetime, uint8_t type)
Add a unicast address to the interface.
#define NBR_INCOMPLETE
Possible states for the nbr cache entries.
#define uip_is_addr_mcast(a)
is address a multicast address, see RFC 4291 a is of type uip_ipaddr_t*
static uip_nd6_opt_prefix_info * nd6_opt_prefix_info
Pointer to a router list entry.
#define ICMP6_RS
Router Solicitation.
#define uip_create_unspecified(a)
set IP address a to unspecified
#define ICMP6_NA
Neighbor advertisement.
uint8_t uip_ext_len
The length of the extension headers.
uip_ds6_nbr_t * uip_ds6_nbr_add(const uip_ipaddr_t *ipaddr, const uip_lladdr_t *lladdr, uint8_t isrouter, uint8_t state, nbr_table_reason_t reason, void *data)
Neighbor Cache basic routines.
Header file for IPv6 Neighbor discovery (RFC 4861)
uip_ds6_netif_t uip_ds6_if
The single interface.
uint16_t uip_icmp6chksum(void)
Calculate the ICMP checksum of the packet in uip_buf.
#define UIP_ND6_OPT_HDR_BUF
Pointer to ND option.
#define UIP_ND6_HOP_LIMIT
HOP LIMIT to be used when sending ND messages (255)
void uip_icmp6_register_input_handler(uip_icmp6_input_handler_t *handler)
Register a handler which can handle a specific ICMPv6 message type.
#define uip_is_addr_linklocal(a)
is addr (a) a link local unicast address, see RFC 4291 i.e.
static uip_ds6_defrt_t * defrt
Pointer to an interface address.
Header file for the logging system
uint16_t uip_nameserver_count(void)
Get the number of recorded name servers.
void uip_nd6_rs_output(void)
Neighbor Solicitation Processing.
uip_ipaddr_t * uip_nameserver_get(uint8_t num)
Get a Nameserver ip address given in RA.
#define uip_create_solicited_node(a, b)
put in b the solicited node address corresponding to address a both a and b are of type uip_ipaddr_t*...
void uip_ds6_select_src(uip_ipaddr_t *src, uip_ipaddr_t *dst)
Source address selection, see RFC 3484.
uint32_t uip_ds6_compute_reachable_time(void)
Compute the reachable time based on base reachable time, see RFC 4861.
An entry in the nbr cache.