static void applyMulticastToInterface6(uint32_t interface)
{
if (!caglobals.ip.ipv6enabled)
{
return;
}
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressGlb, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressGlb, interface);
}
static void applyMulticastToInterface4(struct in_addr inaddr)
{
if (!caglobals.ip.ipv4enabled)
{
return;
}
struct ip_mreqn mreq = { .imr_multiaddr = IPv4MulticastAddress,
.imr_address = inaddr,
.imr_ifindex = 0 };
if (setsockopt(caglobals.ip.m4.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
if (setsockopt(caglobals.ip.m4s.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "secure IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
}
static void applyMulticast6(int fd, struct in6_addr *addr, uint32_t interface)
{
struct ipv6_mreq mreq = {.ipv6mr_multiaddr = *addr, .ipv6mr_interface = interface};
if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "IPv6 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
}
static void applyMulticastToInterface6(uint32_t interface)
{
if (!caglobals.ip.ipv6enabled)
{
return;
}
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressGlb, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressGlb, interface);
}
CAResult_t CAIPStartListenServer()
{
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
return CA_STATUS_FAILED;
}
uint32_t len = u_arraylist_length(iflist);
OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
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)
{
struct in_addr inaddr;
inaddr.s_addr = ifitem->ipv4addr;
applyMulticastToInterface4(inaddr);
OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s", ifitem->name);
}
if (ifitem->family == AF_INET6)
{
applyMulticastToInterface6(ifitem->index);
OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
}
}
u_arraylist_destroy(iflist);
return CA_STATUS_OK;
}
CAResult_t CAIPStopListenServer()
{
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "Get interface info failed: %s", strerror(errno));
return CA_STATUS_FAILED;
}
uint32_t len = u_arraylist_length(iflist);
OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
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)
{
close(caglobals.ip.m4.fd);
close(caglobals.ip.m4s.fd);
caglobals.ip.m4.fd = -1;
caglobals.ip.m4s.fd = -1;
OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s cloed", ifitem->name);
}
if (ifitem->family == AF_INET6)
{
close(caglobals.ip.m6.fd);
close(caglobals.ip.m6s.fd);
caglobals.ip.m6.fd = -1;
caglobals.ip.m6s.fd = -1;
OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
}
}
u_arraylist_destroy(iflist);
return CA_STATUS_OK;
}
static void CAProcessNewInterface(CAInterface_t *ifitem)
{
if (!ifitem)
{
OIC_LOG(DEBUG, TAG, "ifitem is null");
return;
}
if (ifitem->family == AF_INET6)
{
applyMulticastToInterface6(ifitem->index);
}
if (ifitem->family == AF_INET)
{
struct in_addr inaddr = { .s_addr = ifitem->ipv4addr };
applyMulticastToInterface4(inaddr);
}
}
void CAIPSetPacketReceiveCallback(CAIPPacketReceivedCallback callback)
{
g_packetReceivedCallback = callback;
}
void CAIPSetConnectionStateChangeCallback(CAIPConnectionStateChangeCallback callback)
{
CAIPSetNetworkMonitorCallback(callback);
}
static void sendData(int fd, const CAEndpoint_t *endpoint,
const void *data, uint32_t dlen,
const char *cast, const char *fam)
{
OIC_LOG(DEBUG, TAG, "IN");
if (!endpoint)
{
OIC_LOG(DEBUG, TAG, "endpoint is null");
if (g_ipErrorHandler)
{
g_ipErrorHandler(endpoint, data, dlen, CA_STATUS_INVALID_PARAM);
}
return;
}
char *secure = (endpoint->flags & CA_SECURE) ? "secure " : "";
(void)secure; // eliminates release warning
struct sockaddr_storage sock;
CAConvertNameToAddr(endpoint->addr, endpoint->port, &sock);
socklen_t socklen;
if (sock.ss_family == AF_INET6)
{
struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sock;
if (!sock6->sin6_scope_id)
{
sock6->sin6_scope_id = endpoint->interface;
}
socklen = sizeof(struct sockaddr_in6);
}
else
{
socklen = sizeof(struct sockaddr_in);
}
ssize_t len = sendto(fd, data, dlen, 0, (struct sockaddr *)&sock, socklen);
if (-1 == len)
{
// If logging is not defined/enabled.
(void)cast;
(void)fam;
if (g_ipErrorHandler)
{
g_ipErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
}
OIC_LOG_V(ERROR, TAG, "%s%s %s sendTo failed: %s", secure, cast, fam, strerror(errno));
}
else
{
OIC_LOG_V(INFO, TAG, "%s%s %s sendTo is successful: %zd bytes", secure, cast, fam, len);
}
}
static void applyMulticastToInterface4(struct in_addr inaddr)
{
if (!caglobals.ip.ipv4enabled)
{
return;
}
struct ip_mreqn mreq = { .imr_multiaddr = IPv4MulticastAddress,
.imr_address = inaddr,
.imr_ifindex = 0 };
if (setsockopt(caglobals.ip.m4.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
if (setsockopt(caglobals.ip.m4s.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "secure IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
}
static void applyMulticast6(int fd, struct in6_addr *addr, uint32_t interface)
{
struct ipv6_mreq mreq = {.ipv6mr_multiaddr = *addr, .ipv6mr_interface = interface};
if (setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, sizeof (mreq)))
{
if (EADDRINUSE != errno)
{
OIC_LOG_V(ERROR, TAG, "IPv6 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
}
}
}
static void applyMulticastToInterface6(uint32_t interface)
{
if (!caglobals.ip.ipv6enabled)
{
return;
}
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressGlb, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressInt, interface);
applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressLnk, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressRlm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressAdm, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressSit, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressOrg, interface);
//applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressGlb, interface);
}
CAResult_t CAIPStartListenServer()
{
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
return CA_STATUS_FAILED;
}
uint32_t len = u_arraylist_length(iflist);
OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
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)
{
struct in_addr inaddr;
inaddr.s_addr = ifitem->ipv4addr;
applyMulticastToInterface4(inaddr);
OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s", ifitem->name);
}
if (ifitem->family == AF_INET6)
{
applyMulticastToInterface6(ifitem->index);
OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
}
}
u_arraylist_destroy(iflist);
return CA_STATUS_OK;
}
CAResult_t CAIPStopListenServer()
{
u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "Get interface info failed: %s", strerror(errno));
return CA_STATUS_FAILED;
}
uint32_t len = u_arraylist_length(iflist);
OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
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)
{
close(caglobals.ip.m4.fd);
close(caglobals.ip.m4s.fd);
caglobals.ip.m4.fd = -1;
caglobals.ip.m4s.fd = -1;
OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s cloed", ifitem->name);
}
if (ifitem->family == AF_INET6)
{
close(caglobals.ip.m6.fd);
close(caglobals.ip.m6s.fd);
caglobals.ip.m6.fd = -1;
caglobals.ip.m6s.fd = -1;
OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
}
}
u_arraylist_destroy(iflist);
return CA_STATUS_OK;
}
static void CAProcessNewInterface(CAInterface_t *ifitem)
{
if (!ifitem)
{
OIC_LOG(DEBUG, TAG, "ifitem is null");
return;
}
applyMulticastToInterface6(ifitem->index);
struct in_addr inaddr = { .s_addr = ifitem->ipv4addr };
applyMulticastToInterface4(inaddr);
}
static void CAHandleNetlink()
{
#ifdef __linux__
char buf[4096];
struct nlmsghdr *nh;
struct sockaddr_nl sa;
struct iovec iov = { buf, sizeof (buf) };
struct msghdr msg = { (void *)&sa, sizeof (sa), &iov, 1, NULL, 0, 0 };
size_t len = recvmsg(caglobals.ip.netlinkFd, &msg, 0);
for (nh = (struct nlmsghdr *)buf; NLMSG_OK(nh, len); nh = NLMSG_NEXT(nh, len))
{
if (nh->nlmsg_type != RTM_NEWLINK)
{
continue;
}
struct ifinfomsg *ifi = (struct ifinfomsg *)NLMSG_DATA(nh);
if (!ifi || (ifi->ifi_flags & IFF_LOOPBACK) || !(ifi->ifi_flags & IFF_RUNNING))
{
continue;
}
int newIndex = ifi->ifi_index;
u_arraylist_t *iflist = CAIPGetInterfaceInformation(newIndex);
if (!iflist)
{
OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
return;
}
uint32_t listLength = u_arraylist_length(iflist);
for (uint32_t i = 0; i < listLength; i++)
{
CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
if (!ifitem)
{
continue;
}
if ((int)ifitem->index != newIndex)
{
continue;
}
CAProcessNewInterface(ifitem);
break; // we found the one we were looking for
}
u_arraylist_destroy(iflist);
}
#endif // __linux__
}
void CAIPSetPacketReceiveCallback(CAIPPacketReceivedCallback callback)
{
g_packetReceivedCallback = callback;
}
void CAIPSetExceptionCallback(CAIPExceptionCallback callback)
{
g_exceptionCallback = callback;
}
static void sendData(int fd, const CAEndpoint_t *endpoint,
const void *data, uint32_t dlen,
const char *cast, const char *fam)
{
OIC_LOG(DEBUG, TAG, "IN");
if (!endpoint)
{
OIC_LOG(DEBUG, TAG, "endpoint is null");
return;
}
char *secure = (endpoint->flags & CA_SECURE) ? "secure " : "";
(void)secure; // eliminates release warning
struct sockaddr_storage sock;
CAConvertNameToAddr(endpoint->addr, endpoint->port, &sock);
socklen_t socklen;
if (sock.ss_family == AF_INET6)
{
struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sock;
if (!sock6->sin6_scope_id)
{
sock6->sin6_scope_id = endpoint->interface;
}
socklen = sizeof(struct sockaddr_in6);
}
else
{
socklen = sizeof(struct sockaddr_in);
}
ssize_t len = sendto(fd, data, dlen, 0, (struct sockaddr *)&sock, socklen);
if (-1 == len)
{
// If logging is not defined/enabled.
(void)cast;
(void)fam;
OIC_LOG_V(ERROR, TAG, "%s%s %s sendTo failed: %s", secure, cast, fam, strerror(errno));
}
else
{
OIC_LOG_V(INFO, TAG, "%s%s %s sendTo is successful: %zd bytes", secure, cast, fam, len);
}
}
