void CAIPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
bool isMulticast)
{
VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
bool isSecure = (endpoint->flags & CA_SECURE) != 0;
if (isMulticast)
{
endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
return;
}
if ((endpoint->flags & CA_IPV6) && caglobals.ip.ipv6enabled)
{
sendMulticastData6(iflist, endpoint, data, datalen);
}
if ((endpoint->flags & CA_IPV4) && caglobals.ip.ipv4enabled)
{
sendMulticastData4(iflist, endpoint, data, datalen);
}
u_arraylist_destroy(iflist);
}
else
{
if (!endpoint->port) // unicast discovery
{
endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
}
int fd;
if (caglobals.ip.ipv6enabled && (endpoint->flags & CA_IPV6))
{
fd = isSecure ? caglobals.ip.u6s.fd : caglobals.ip.u6.fd;
#ifndef __WITH_DTLS__
fd = caglobals.ip.u6.fd;
#endif
sendData(fd, endpoint, data, datalen, "unicast", "ipv6");
}
if (caglobals.ip.ipv4enabled && (endpoint->flags & CA_IPV4))
{
fd = isSecure ? caglobals.ip.u4s.fd : caglobals.ip.u4.fd;
#ifndef __WITH_DTLS__
fd = caglobals.ip.u4.fd;
#endif
sendData(fd, endpoint, data, datalen, "unicast", "ipv4");
}
}
}
static void sendMulticastData4(const u_arraylist_t *iflist,
CAEndpoint_t *endpoint,
const void *data, uint32_t datalen)
{
VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
struct ip_mreqn mreq = { .imr_multiaddr = IPv4MulticastAddress,
.imr_ifindex = 0 };
OICStrcpy(endpoint->addr, sizeof(endpoint->addr), IPv4_MULTICAST);
int fd = caglobals.ip.u4.fd;
uint32_t len = u_arraylist_length(iflist);
for (uint32_t i = 0; i < len; i++)
{
CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
if (!ifitem)
{
continue;
}
if ((ifitem->flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
{
continue;
}
if (ifitem->family != AF_INET)
{
continue;
}
struct in_addr inaddr;
inaddr.s_addr = ifitem->ipv4addr;
mreq.imr_address = inaddr;
if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, &mreq, sizeof (mreq)))
{
OIC_LOG_V(ERROR, TAG, "send IP_MULTICAST_IF failed: %s (using defualt)",
strerror(errno));
}
sendData(fd, endpoint, data, datalen, "multicast", "ipv4");
}
}
void CAIPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
bool isMulticast)
{
VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
bool isSecure = (endpoint->flags & CA_SECURE) != 0;
if (isMulticast)
{
endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
return;
}
if ((endpoint->flags & CA_IPV6) && caglobals.ip.ipv6enabled)
{
sendMulticastData6(iflist, endpoint, data, datalen);
}
if ((endpoint->flags & CA_IPV4) && caglobals.ip.ipv4enabled)
{
sendMulticastData4(iflist, endpoint, data, datalen);
}
u_arraylist_destroy(iflist);
}
else
{
if (!endpoint->port) // unicast discovery
{
endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
}
int fd;
if (caglobals.ip.ipv6enabled && (endpoint->flags & CA_IPV6))
{
fd = isSecure ? caglobals.ip.u6s.fd : caglobals.ip.u6.fd;
#ifndef __WITH_DTLS__
fd = caglobals.ip.u6.fd;
#endif
sendData(fd, endpoint, data, datalen, "unicast", "ipv6");
}
if (caglobals.ip.ipv4enabled && (endpoint->flags & CA_IPV4))
{
fd = isSecure ? caglobals.ip.u4s.fd : caglobals.ip.u4.fd;
#ifndef __WITH_DTLS__
fd = caglobals.ip.u4.fd;
#endif
sendData(fd, endpoint, data, datalen, "unicast", "ipv4");
}
}
}
