77 #include "lib/random.h" 81 #define LOG_MODULE "IPv6 NDP" 82 #define LOG_LEVEL LOG_LEVEL_IPV6 90 #define UIP_ND6_RS_BUF ((uip_nd6_rs *)UIP_ICMP_PAYLOAD) 91 #define UIP_ND6_RA_BUF ((uip_nd6_ra *)UIP_ICMP_PAYLOAD) 92 #define UIP_ND6_NS_BUF ((uip_nd6_ns *)UIP_ICMP_PAYLOAD) 93 #define UIP_ND6_NA_BUF ((uip_nd6_na *)UIP_ICMP_PAYLOAD) 96 #define ND6_OPT(opt) ((unsigned char *)(UIP_ICMP_PAYLOAD + (opt))) 97 #define ND6_OPT_HDR_BUF(opt) ((uip_nd6_opt_hdr *)ND6_OPT(opt)) 98 #define ND6_OPT_PREFIX_BUF(opt) ((uip_nd6_opt_prefix_info *)ND6_OPT(opt)) 99 #define ND6_OPT_MTU_BUF(opt) ((uip_nd6_opt_mtu *)ND6_OPT(opt)) 100 #define ND6_OPT_RDNSS_BUF(opt) ((uip_nd6_opt_dns *)ND6_OPT(opt)) 103 #if UIP_ND6_SEND_NS || UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 104 static uint8_t nd6_opt_offset;
110 #if UIP_ND6_SEND_NS || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 114 #if !UIP_CONF_ROUTER // TBD see if we move it to ra_input 118 #if (!UIP_CONF_ROUTER || UIP_ND6_SEND_RA) 122 #if UIP_ND6_SEND_NA || UIP_ND6_SEND_RA || !UIP_CONF_ROUTER 138 create_llao(uint8_t *llao, uint8_t type) {
139 llao[UIP_ND6_OPT_TYPE_OFFSET] = type;
174 LOG_INFO(
"Received NS from ");
178 LOG_INFO_(
" with target address ");
179 LOG_INFO_6ADDR((uip_ipaddr_t *) (&UIP_ND6_NS_BUF->tgtipaddr));
183 #if UIP_CONF_IPV6_CHECKS 187 LOG_ERR(
"NS received is bad\n");
194 nd6_opt_offset = UIP_ND6_NS_LEN;
195 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
196 #if UIP_CONF_IPV6_CHECKS 197 if(ND6_OPT_HDR_BUF(nd6_opt_offset)->len == 0) {
198 LOG_ERR(
"NS received is bad\n");
202 switch (ND6_OPT_HDR_BUF(nd6_opt_offset)->type) {
203 case UIP_ND6_OPT_SLLAO:
205 #if UIP_CONF_IPV6_CHECKS 208 LOG_ERR(
"NS received is bad\n");
212 uip_lladdr_t lladdr_aligned;
217 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
226 (
const uip_lladdr_t *)&lladdr_aligned)
231 nbr->state = NBR_STALE;
234 nbr->state = NBR_STALE;
238 #if UIP_CONF_IPV6_CHECKS 243 LOG_WARN(
"ND option not supported in NS");
246 nd6_opt_offset += (ND6_OPT_HDR_BUF(nd6_opt_offset)->len << 3);
249 addr = uip_ds6_addr_lookup(&UIP_ND6_NS_BUF->tgtipaddr);
253 #if UIP_ND6_DEF_MAXDADNS > 0 254 #if UIP_CONF_IPV6_CHECKS 256 LOG_ERR(
"NS received is bad\n");
263 flags = UIP_ND6_NA_FLAG_OVERRIDE;
274 #if UIP_CONF_IPV6_CHECKS 275 if(uip_ds6_is_my_addr(&
UIP_IP_BUF->srcipaddr)) {
282 LOG_ERR(
"NS received is bad\n");
291 flags = UIP_ND6_NA_FLAG_SOLICITED | UIP_ND6_NA_FLAG_OVERRIDE;
296 if(uip_ds6_addr_lookup(&
UIP_IP_BUF->destipaddr) == addr) {
299 flags = UIP_ND6_NA_FLAG_SOLICITED | UIP_ND6_NA_FLAG_OVERRIDE;
302 #if UIP_CONF_IPV6_CHECKS 303 LOG_ERR(
"NS received is bad\n");
315 flags = flags | UIP_ND6_NA_FLAG_ROUTER;
328 UIP_ND6_NA_BUF->flagsreserved = flags;
329 memcpy(&UIP_ND6_NA_BUF->tgtipaddr, &addr->ipaddr,
sizeof(uip_ipaddr_t));
331 create_llao(&
uip_buf[uip_l3_icmp_hdr_len + UIP_ND6_NA_LEN],
340 LOG_INFO(
"Sending NA to ");
344 LOG_INFO_(
" with target address ");
345 LOG_INFO_6ADDR(&UIP_ND6_NA_BUF->tgtipaddr);
375 UIP_ND6_NS_BUF->reserved = 0;
381 if(!(uip_ds6_is_my_addr(tgt))) {
388 LOG_ERR(
"Dropping NS due to no suitable source address\n");
394 create_llao(&
uip_buf[uip_l3_icmp_hdr_len + UIP_ND6_NS_LEN],
401 UIP_IP_BUF->len[1] = UIP_ICMPH_LEN + UIP_ND6_NS_LEN;
402 uip_len = UIP_IPH_LEN + UIP_ICMPH_LEN + UIP_ND6_NS_LEN;
409 LOG_INFO(
"Sending NS to ");
413 LOG_INFO_(
" with target address ");
444 uint8_t is_solicited;
446 uip_lladdr_t lladdr_aligned;
448 LOG_INFO(
"Received NA from ");
452 LOG_INFO_(
" with target address ");
453 LOG_INFO_6ADDR((uip_ipaddr_t *) (&UIP_ND6_NA_BUF->tgtipaddr));
462 is_router = ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_ROUTER));
464 ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_SOLICITED));
466 ((UIP_ND6_NA_BUF->flagsreserved & UIP_ND6_NA_FLAG_OVERRIDE));
468 #if UIP_CONF_IPV6_CHECKS 473 LOG_ERR(
"NA received is bad\n");
479 nd6_opt_offset = UIP_ND6_NA_LEN;
481 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
482 #if UIP_CONF_IPV6_CHECKS 483 if(ND6_OPT_HDR_BUF(nd6_opt_offset)->len == 0) {
484 LOG_ERR(
"NA received is bad\n");
488 switch (ND6_OPT_HDR_BUF(nd6_opt_offset)->type) {
489 case UIP_ND6_OPT_TLLAO:
490 nd6_opt_llao = (uint8_t *)ND6_OPT_HDR_BUF(nd6_opt_offset);
493 LOG_WARN(
"ND option not supported in NA\n");
496 nd6_opt_offset += (ND6_OPT_HDR_BUF(nd6_opt_offset)->len << 3);
498 addr = uip_ds6_addr_lookup(&UIP_ND6_NA_BUF->tgtipaddr);
501 #if UIP_ND6_DEF_MAXDADNS > 0 506 LOG_ERR(
"NA received is bad\n");
509 const uip_lladdr_t *lladdr;
528 (
const uip_lladdr_t *)&lladdr_aligned) < 0) {
538 nbr->state = NBR_STALE;
540 nbr->isrouter = is_router;
542 if(!is_override && is_llchange) {
543 if(nbr->state == NBR_REACHABLE) {
544 nbr->state = NBR_STALE;
552 if(is_override || !is_llchange ||
nd6_opt_llao == NULL) {
556 (
const uip_lladdr_t *)&lladdr_aligned)
568 if(nbr->isrouter && !is_router) {
569 defrt = uip_ds6_defrt_lookup(&
UIP_IP_BUF->srcipaddr);
571 uip_ds6_defrt_rm(defrt);
574 nbr->isrouter = is_router;
577 #if UIP_CONF_IPV6_QUEUE_PKT 585 if(uip_packetqueue_buflen(&nbr->packethandle) != 0) {
586 uip_len = uip_packetqueue_buflen(&nbr->packethandle);
588 uip_packetqueue_free(&nbr->packethandle);
607 LOG_INFO(
"Received RS from ");
615 #if UIP_CONF_IPV6_CHECKS 622 LOG_ERR(
"RS received is bad\n");
629 nd6_opt_offset = UIP_ND6_RS_LEN;
632 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
633 #if UIP_CONF_IPV6_CHECKS 634 if(ND6_OPT_HDR_BUF(nd6_opt_offset)->len == 0) {
635 LOG_ERR(
"RS received is bad\n");
639 switch (ND6_OPT_HDR_BUF(nd6_opt_offset)->type) {
640 case UIP_ND6_OPT_SLLAO:
641 nd6_opt_llao = (uint8_t *)ND6_OPT_HDR_BUF(nd6_opt_offset);
644 LOG_WARN(
"ND option not supported in RS\n");
647 nd6_opt_offset += (ND6_OPT_HDR_BUF(nd6_opt_offset)->len << 3);
651 #if UIP_CONF_IPV6_CHECKS 653 LOG_ERR(
"RS received is bad\n");
657 uip_lladdr_t lladdr_aligned;
662 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
675 0, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
676 nbr->reachable = nbr_data.reachable;
677 nbr->sendns = nbr_data.sendns;
678 nbr->nscount = nbr_data.nscount;
682 #if UIP_CONF_IPV6_CHECKS 688 uip_ds6_send_ra_sollicited();
697 uip_nd6_ra_output(uip_ipaddr_t * dest)
717 UIP_ND6_RA_BUF->cur_ttl =
uip_ds6_if.cur_hop_limit;
719 UIP_ND6_RA_BUF->flags_reserved =
720 (UIP_ND6_M_FLAG << 7) | (UIP_ND6_O_FLAG << 6);
722 UIP_ND6_RA_BUF->router_lifetime =
uip_htons(UIP_ND6_ROUTER_LIFETIME);
725 UIP_ND6_RA_BUF->reachable_time = 0;
726 UIP_ND6_RA_BUF->retrans_timer = 0;
728 uip_len = UIP_IPH_LEN + UIP_ICMPH_LEN + UIP_ND6_RA_LEN;
729 nd6_opt_offset = UIP_ND6_RA_LEN;
735 if((prefix->isused) && (prefix->advertise)) {
736 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->type = UIP_ND6_OPT_PREFIX_INFO;
737 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->len = UIP_ND6_OPT_PREFIX_INFO_LEN / 8;
738 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->preflen = prefix->length;
739 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->flagsreserved1 = prefix->l_a_reserved;
740 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->validlt = uip_htonl(prefix->vlifetime);
741 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->preferredlt = uip_htonl(prefix->plifetime);
742 ND6_OPT_PREFIX_BUF(nd6_opt_offset)->reserved2 = 0;
743 uip_ipaddr_copy(&(ND6_OPT_PREFIX_BUF(nd6_opt_offset)->prefix), &(prefix->ipaddr));
744 nd6_opt_offset += UIP_ND6_OPT_PREFIX_INFO_LEN;
745 uip_len += UIP_ND6_OPT_PREFIX_INFO_LEN;
750 create_llao((uint8_t *)ND6_OPT_HDR_BUF(nd6_opt_offset), UIP_ND6_OPT_SLLAO);
756 ND6_OPT_MTU_BUF(nd6_opt_offset)->type = UIP_ND6_OPT_MTU;
757 ND6_OPT_MTU_BUF(nd6_opt_offset)->len = UIP_ND6_OPT_MTU_LEN >> 3;
758 ND6_OPT_MTU_BUF(nd6_opt_offset)->reserved = 0;
760 ND6_OPT_MTU_BUF(nd6_opt_offset)->mtu = uip_htonl(1500);
762 uip_len += UIP_ND6_OPT_MTU_LEN;
763 nd6_opt_offset += UIP_ND6_OPT_MTU_LEN;
768 uip_ipaddr_t *ip = &ND6_OPT_RDNSS_BUF(nd6_opt_offset)->ip;
769 uip_ipaddr_t *dns = NULL;
770 ND6_OPT_RDNSS_BUF(nd6_opt_offset)->type = UIP_ND6_OPT_RDNSS;
771 ND6_OPT_RDNSS_BUF(nd6_opt_offset)->reserved = 0;
774 ND6_OPT_RDNSS_BUF(nd6_opt_offset)->lifetime -=
clock_seconds();
780 ND6_OPT_RDNSS_BUF(nd6_opt_offset)->len = UIP_ND6_OPT_RDNSS_LEN + (i << 1);
781 LOG_INFO(
"%d nameservers reported\n", i);
782 uip_len += ND6_OPT_RDNSS_BUF(nd6_opt_offset)->len << 3;
783 nd6_opt_offset += ND6_OPT_RDNSS_BUF(nd6_opt_offset)->len << 3;
794 LOG_INFO(
"Sending RA to ");
820 UIP_IP_BUF->len[1] = UIP_ICMPH_LEN + UIP_ND6_RS_LEN;
821 uip_len = uip_l3_icmp_hdr_len + UIP_ND6_RS_LEN;
824 uipbuf_set_len_field(
UIP_IP_BUF, UIP_ICMPH_LEN + UIP_ND6_RS_LEN + UIP_ND6_OPT_LLAO_LEN);
826 create_llao(&
uip_buf[uip_l3_icmp_hdr_len + UIP_ND6_RS_LEN],
834 LOG_INFO(
"Sending RS to ");
854 uip_lladdr_t lladdr_aligned;
856 LOG_INFO(
"Received RA from ");
863 #if UIP_CONF_IPV6_CHECKS 867 LOG_ERR(
"RA received is bad");
872 if(UIP_ND6_RA_BUF->cur_ttl != 0) {
873 uip_ds6_if.cur_hop_limit = UIP_ND6_RA_BUF->cur_ttl;
874 LOG_INFO(
"uip_ds6_if.cur_hop_limit %u\n",
uip_ds6_if.cur_hop_limit);
877 if(UIP_ND6_RA_BUF->reachable_time != 0) {
879 uip_ntohl(UIP_ND6_RA_BUF->reachable_time)) {
880 uip_ds6_if.base_reachable_time = uip_ntohl(UIP_ND6_RA_BUF->reachable_time);
884 if(UIP_ND6_RA_BUF->retrans_timer != 0) {
885 uip_ds6_if.retrans_timer = uip_ntohl(UIP_ND6_RA_BUF->retrans_timer);
889 nd6_opt_offset = UIP_ND6_RA_LEN;
890 while(uip_l3_icmp_hdr_len + nd6_opt_offset <
uip_len) {
891 if(ND6_OPT_HDR_BUF(nd6_opt_offset)->len == 0) {
892 LOG_ERR(
"RA received is bad");
895 switch (ND6_OPT_HDR_BUF(nd6_opt_offset)->type) {
896 case UIP_ND6_OPT_SLLAO:
897 LOG_DBG(
"Processing SLLAO option in RA\n");
898 nd6_opt_llao = (uint8_t *) ND6_OPT_HDR_BUF(nd6_opt_offset);
906 1, NBR_STALE, NBR_TABLE_REASON_IPV6_ND, NULL);
913 nbr->state = NBR_STALE;
919 (
const uip_lladdr_t *)&lladdr_aligned) < 0) {
923 nbr->state = NBR_STALE;
928 case UIP_ND6_OPT_MTU:
929 LOG_DBG(
"Processing MTU option in RA\n");
933 case UIP_ND6_OPT_PREFIX_INFO:
934 LOG_DBG(
"Processing PREFIX option in RA\n");
936 if((uip_ntohl(nd6_opt_prefix_info->validlt) >=
937 uip_ntohl(nd6_opt_prefix_info->preferredlt))
940 if(nd6_opt_prefix_info->flagsreserved1 & UIP_ND6_RA_FLAG_ONLINK) {
942 uip_ds6_prefix_lookup(&nd6_opt_prefix_info->prefix,
943 nd6_opt_prefix_info->preflen);
945 if(nd6_opt_prefix_info->validlt != 0) {
947 prefix = uip_ds6_prefix_add(&nd6_opt_prefix_info->prefix,
948 nd6_opt_prefix_info->preflen,
949 uip_ntohl(nd6_opt_prefix_info->
952 prefix = uip_ds6_prefix_add(&nd6_opt_prefix_info->prefix,
953 nd6_opt_prefix_info->preflen, 0);
957 switch (nd6_opt_prefix_info->validlt) {
959 uip_ds6_prefix_rm(prefix);
962 prefix->isinfinite = 1;
965 LOG_DBG(
"Updating timer of prefix ");
966 LOG_DBG_6ADDR(&prefix->ipaddr);
967 LOG_DBG_(
" new value %"PRIu32
"\n", uip_ntohl(nd6_opt_prefix_info->validlt));
969 uip_ntohl(nd6_opt_prefix_info->validlt));
970 prefix->isinfinite = 0;
977 if((nd6_opt_prefix_info->flagsreserved1 & UIP_ND6_RA_FLAG_AUTONOMOUS)
978 && (nd6_opt_prefix_info->validlt != 0)
979 && (nd6_opt_prefix_info->preflen == UIP_DEFAULT_PREFIX_LEN)) {
983 addr = uip_ds6_addr_lookup(&
ipaddr);
984 if((addr != NULL) && (addr->type == ADDR_AUTOCONF)) {
987 if((uip_ntohl(nd6_opt_prefix_info->validlt) > 2 * 60 * 60) ||
988 (uip_ntohl(nd6_opt_prefix_info->validlt) >
990 LOG_DBG(
"Updating timer of address ");
991 LOG_DBG_6ADDR(&addr->ipaddr);
992 LOG_DBG_(
" new value %lu\n",
993 (
unsigned long)uip_ntohl(nd6_opt_prefix_info->validlt));
995 uip_ntohl(nd6_opt_prefix_info->validlt));
998 LOG_DBG(
"Updating timer of address ");
999 LOG_DBG_6ADDR(&addr->ipaddr);
1000 LOG_DBG_(
" new value %lu\n", (
unsigned long)(2 * 60 * 60));
1002 addr->isinfinite = 0;
1004 addr->isinfinite = 1;
1007 if(uip_ntohl(nd6_opt_prefix_info->validlt) ==
1019 #if UIP_ND6_RA_RDNSS 1020 case UIP_ND6_OPT_RDNSS:
1021 LOG_DBG(
"Processing RDNSS option\n");
1022 uint8_t naddr = (ND6_OPT_RDNSS_BUF(nd6_opt_offset)->len - 1) / 2;
1023 uip_ipaddr_t *ip = (uip_ipaddr_t *)(&ND6_OPT_RDNSS_BUF(nd6_opt_offset)->ip);
1024 LOG_DBG(
"got %d nameservers\n", naddr);
1025 while(naddr-- > 0) {
1026 LOG_DBG(
"nameserver: ");
1028 LOG_DBG_(
" lifetime: %"PRIx32
"\n", uip_ntohl(ND6_OPT_RDNSS_BUF(nd6_opt_offset)->lifetime));
1035 LOG_ERR(
"ND option not supported in RA\n");
1038 nd6_opt_offset += (ND6_OPT_HDR_BUF(nd6_opt_offset)->len << 3);
1041 defrt = uip_ds6_defrt_lookup(&
UIP_IP_BUF->srcipaddr);
1042 if(UIP_ND6_RA_BUF->router_lifetime != 0) {
1049 long)(uip_ntohs(UIP_ND6_RA_BUF->router_lifetime)));
1052 (
unsigned long)(uip_ntohs(UIP_ND6_RA_BUF->router_lifetime)));
1056 uip_ds6_defrt_rm(defrt);
1060 #if UIP_CONF_IPV6_QUEUE_PKT 1069 if(nbr != NULL && uip_packetqueue_buflen(&nbr->packethandle) != 0) {
1070 uip_len = uip_packetqueue_buflen(&nbr->packethandle);
1072 uip_packetqueue_free(&nbr->packethandle);
1086 UIP_ICMP6_HANDLER(ns_input_handler,
ICMP6_NS, UIP_ICMP6_HANDLER_CODE_ANY,
1090 UIP_ICMP6_HANDLER(na_input_handler,
ICMP6_NA, UIP_ICMP6_HANDLER_CODE_ANY,
1094 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA 1095 UIP_ICMP6_HANDLER(rs_input_handler,
ICMP6_RS, UIP_ICMP6_HANDLER_CODE_ANY,
1099 #if !UIP_CONF_ROUTER 1100 UIP_ICMP6_HANDLER(ra_input_handler,
ICMP6_RA, UIP_ICMP6_HANDLER_CODE_ANY,
1118 #if UIP_CONF_ROUTER && UIP_ND6_SEND_RA 1123 #if !UIP_CONF_ROUTER static uip_ipaddr_t ipaddr
Pointer to prefix information option in uip_buf.
#define UIP_IP_BUF
Direct access to IPv6 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
Direct access to ICMP, UDP, and TCP headers and payload, with implicit ext header offset (global uip_...
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
uip_ds6_nbr_t * uip_ds6_nbr_lookup(const uip_ipaddr_t *ipaddr)
Get the neighbor cache associated with a specified IPv6 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.
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)
Add a neighbor cache for a specified IPv6 address, which is associated with a specified link-layer ad...
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_HOP_LIMIT
HOP LIMIT to be used when sending ND messages (255)
int uip_ds6_nbr_update_ll(uip_ds6_nbr_t **nbr_pp, const uip_lladdr_t *new_ll_addr)
Update the link-layer address associated with an IPv6 address.
int uip_ds6_nbr_rm(uip_ds6_nbr_t *nbr)
Remove a neighbor cache.
void uip_icmp6_register_input_handler(uip_icmp6_input_handler_t *handler)
Register a handler which can handle a specific ICMPv6 message type.
const uip_lladdr_t * uip_ds6_nbr_get_ll(const uip_ds6_nbr_t *nbr)
Get the link-layer address associated with a specified nbr cache.
#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.
The default nbr_table entry (when UIP_DS6_NBR_MULTI_IPV6_ADDRS is disabled), that implements nbr cach...