PRIVATE_EXTERN int
inet6_linklocal_stop(const char * ifname)
{
int ret = 0;
int s = inet6_dgram_socket();
if (s < 0) {
ret = errno;
my_log(LOG_ERR,
"inet6_linklocal_stop(%s): socket() failed, %s (%d)",
ifname, strerror(ret), ret);
goto done;
}
if (siocll_stop(s, ifname) < 0) {
ret = errno;
if (errno != ENXIO) {
my_log(LOG_ERR, "siocll_stop(%s) failed, %s (%d)",
ifname, strerror(errno), errno);
}
}
close(s);
done:
return (ret);
}
PRIVATE_EXTERN int
inet6_linklocal_start(const char * ifname, boolean_t use_cga)
{
int ret = 0;
int s = inet6_dgram_socket();
if (s < 0) {
ret = errno;
my_log(LOG_ERR,
"inet6_linklocal_start(%s): socket() failed, %s (%d)",
ifname, strerror(ret), ret);
goto done;
}
nd_flags_set_with_socket(s, ifname, 0, ND6_IFF_IFDISABLED);
if (ll_start(s, ifname, use_cga) < 0) {
ret = errno;
if (errno != ENXIO) {
my_log(LOG_ERR, "siocll_start(%s) failed, %s (%d)",
ifname, strerror(errno), errno);
}
}
close(s);
done:
return (ret);
}
PRIVATE_EXTERN int
inet6_detach_interface(const char * ifname)
{
int ret = 0;
int s = inet6_dgram_socket();
if (s < 0) {
ret = errno;
my_log(LOG_ERR,
"inet6_detach_interface(%s): socket() failed, %s (%d)",
ifname, strerror(ret), ret);
goto done;
}
if (siocprotodetach_in6(s, ifname) < 0) {
ret = errno;
if (ret != ENXIO) {
my_log(LOG_DEBUG, "siocprotodetach_in6(%s) failed, %s (%d)",
ifname, strerror(errno), errno);
}
}
close(s);
done:
return (ret);
}
STATIC boolean_t
nd_flags_set(const char * if_name, uint32_t set_flags, uint32_t clear_flags)
{
int s;
boolean_t success = FALSE;
s = inet6_dgram_socket();
if (s < 0) {
my_log_fl(LOG_ERR, "socket failed, %s", strerror(errno));
}
else {
success = nd_flags_set_with_socket(s, if_name, set_flags, clear_flags);
close(s);
}
return (success);
}
PRIVATE_EXTERN boolean_t
inet6_set_perform_nud(const char * if_name, boolean_t perform_nud)
{
boolean_t need_set = FALSE;
struct in6_ndireq nd;
int s;
boolean_t success = FALSE;
s = inet6_dgram_socket();
if (s < 0) {
my_log_fl(LOG_ERR, "socket failed, %s", strerror(errno));
goto done;
}
bzero(&nd, sizeof(nd));
strncpy(nd.ifname, if_name, sizeof(nd.ifname));
if (ioctl(s, SIOCGIFINFO_IN6, &nd)) {
my_log_fl(LOG_ERR, "SIOCGIFINFO_IN6(%s) failed, %s",
if_name, strerror(errno));
goto done;
}
if (perform_nud) {
if ((nd.ndi.flags & ND6_IFF_PERFORMNUD) == 0) {
nd.ndi.flags |= ND6_IFF_PERFORMNUD;
need_set = TRUE;
}
}
else if ((nd.ndi.flags & ND6_IFF_PERFORMNUD) != 0) {
nd.ndi.flags &= ~ND6_IFF_PERFORMNUD;
need_set = TRUE;
}
if (need_set) {
if (ioctl(s, SIOCSIFINFO_FLAGS, (caddr_t)&nd)) {
my_log_fl(LOG_ERR, "SIOCSIFINFO_FLAGS(%s) failed, %s",
if_name, strerror(errno));
goto done;
}
}
success = TRUE;
done:
if (s >= 0) {
close(s);
}
return (success);
}
STATIC int
inet6_if_ioctl(const char * ifname, unsigned long request)
{
struct in6_ifreq ifr;
int ret = 0;
int s;
s = inet6_dgram_socket();
if (s < 0) {
ret = errno;
goto done;
}
bzero(&ifr, sizeof(ifr));
strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
if (ioctl(s, request, &ifr) < 0) {
ret = errno;
}
done:
if (s >=0) {
close(s);
}
return (ret);
}
PRIVATE_EXTERN int
inet6_rtadv_enable(const char * if_name)
{
int ret = 0;
int s = inet6_dgram_socket();
if (s < 0) {
ret = errno;
my_log(LOG_ERR,
"inet6_rtadv_enable(%s): socket() failed, %s (%d)",
if_name, strerror(ret), ret);
goto done;
}
if (siocautoconf_start(s, if_name) < 0) {
ret = errno;
if (errno != ENXIO) {
my_log(LOG_ERR, "siocautoconf_start(%s) failed, %s (%d)",
if_name, strerror(errno), errno);
}
}
close(s);
done:
return (ret);
}
PRIVATE_EXTERN void
inet6_addrlist_copy(inet6_addrlist_t * addr_list_p, int if_index)
{
int addr_index = 0;
char * buf = NULL;
char * buf_end;
int buf_len;
int count;
int error;
int i;
char ifname[IFNAMSIZ + 1];
inet6_addrinfo_t * linklocal = NULL;
inet6_addrinfo_t * list = NULL;
char * scan;
struct rt_msghdr * rtm;
int s = -1;
buf = get_if_info(if_index, AF_INET6, &buf_len);
if (buf == NULL) {
goto done;
}
buf_end = buf + buf_len;
/* figure out how many IPv6 addresses there are */
count = 0;
ifname[0] = '\0';
for (scan = buf; scan < buf_end; scan += rtm->rtm_msglen) {
struct if_msghdr * ifm;
/* ALIGN: buf aligned (from calling get_if_info), scan aligned,
* cast ok. */
rtm = (struct rt_msghdr *)(void *)scan;
if (rtm->rtm_version != RTM_VERSION) {
continue;
}
switch (rtm->rtm_type) {
case RTM_IFINFO:
ifm = (struct if_msghdr *)rtm;
if (ifm->ifm_addrs & RTA_IFP) {
struct sockaddr_dl * dl_p;
dl_p = (struct sockaddr_dl *)(ifm + 1);
if (dl_p->sdl_nlen == 0
|| dl_p->sdl_nlen >= sizeof(ifname)) {
goto done;
}
bcopy(dl_p->sdl_data, ifname, dl_p->sdl_nlen);
ifname[dl_p->sdl_nlen] = '\0';
}
break;
case RTM_NEWADDR:
count++;
break;
default:
break;
}
}
if (ifname[0] == '\0') {
goto done;
}
if (count == 0) {
goto done;
}
if (count > INET6_ADDRLIST_N_STATIC) {
list = (inet6_addrinfo_t *)malloc(sizeof(*list) * count);
if (list == NULL) {
goto done;
}
}
else {
list = addr_list_p->list_static;
}
for (scan = buf; scan < buf_end; scan += rtm->rtm_msglen) {
boolean_t got_address = FALSE;
struct ifa_msghdr * ifam;
struct rt_addrinfo info;
rtm = (struct rt_msghdr *)(void *)scan;
if (rtm->rtm_version != RTM_VERSION) {
continue;
}
if (rtm->rtm_type == RTM_NEWADDR) {
ifam = (struct ifa_msghdr *)rtm;
info.rti_addrs = ifam->ifam_addrs;
error = rt_xaddrs((char *)(ifam + 1),
((char *)ifam) + ifam->ifam_msglen,
&info);
if (error) {
fprintf(stderr, "couldn't extract rt_addrinfo %s (%d)\n",
strerror(error), error);
goto done;
}
for (i = 0; i < RTAX_MAX; i++) {
struct sockaddr_in6 * sin6_p;
/* ALIGN: info.rti_info aligned (sockaddr), cast ok. */
sin6_p = (struct sockaddr_in6 *)(void *)info.rti_info[i];
if (sin6_p == NULL
|| sin6_p->sin6_len < sizeof(struct sockaddr_in6)) {
continue;
}
switch (i) {
case RTAX_NETMASK:
list[addr_index].prefix_length
= count_prefix_bits(&sin6_p->sin6_addr,
sizeof(sin6_p->sin6_addr));
break;
case RTAX_IFA:
list[addr_index].addr = sin6_p->sin6_addr;
got_address = TRUE;
break;
default:
break;
}
}
if (got_address) {
if (s < 0) {
s = inet6_dgram_socket();
}
if (s >= 0) {
siocgifaflag_in6(s, ifname,
&list[addr_index].addr,
&list[addr_index].addr_flags);
siocgifalifetime_in6(s, ifname,
&list[addr_index].addr,
&list[addr_index].valid_lifetime,
&list[addr_index].preferred_lifetime);
}
/* Mask the v6 LL scope id */
if (IN6_IS_ADDR_LINKLOCAL(&list[addr_index].addr)) {
list[addr_index].addr.s6_addr16[1] = 0;
if (linklocal == NULL) {
linklocal = &list[addr_index];
}
}
addr_index++;
}
}
}
if (addr_index == 0) {
if (list != addr_list_p->list_static) {
free(list);
}
list = NULL;
}
done:
if (s >= 0) {
close(s);
}
if (buf != NULL) {
free(buf);
}
addr_list_p->list = list;
addr_list_p->count = addr_index;
addr_list_p->linklocal = linklocal;
return;
}