1 /*****************************************************************j
3 * Copyright 2014 Samsung Electronics All Rights Reserved.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 ******************************************************************/
21 #include "caipinterface.h"
24 #include <asm/types.h>
26 #ifndef IPV6_ADD_MEMBERSHIP
27 #define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP
30 #include <sys/types.h>
31 #include <sys/socket.h>
34 #include <sys/types.h>
36 #include <sys/select.h>
37 #include <arpa/inet.h>
38 #include <netinet/in.h>
42 #include <linux/netlink.h>
43 #include <linux/rtnetlink.h>
47 #include "caadapterutils.h"
49 #include "caadapternetdtls.h"
52 #include "oic_malloc.h"
53 #include "oic_string.h"
57 * @brief Logging tag for module name
59 #define TAG "IP_SERVER"
61 #define SELECT_TIMEOUT 1 // select() seconds (and termination latency)
63 #define IPv4_MULTICAST "224.0.1.187"
64 static struct in_addr IPv4MulticastAddress = { 0 };
66 #define IPv6_DOMAINS 16
67 #define IPv6_MULTICAST_INT "ff01::fd"
68 static struct in6_addr IPv6MulticastAddressInt;
69 #define IPv6_MULTICAST_LNK "ff02::fd"
70 static struct in6_addr IPv6MulticastAddressLnk;
71 #define IPv6_MULTICAST_RLM "ff03::fd"
72 static struct in6_addr IPv6MulticastAddressRlm;
73 #define IPv6_MULTICAST_ADM "ff04::fd"
74 static struct in6_addr IPv6MulticastAddressAdm;
75 #define IPv6_MULTICAST_SIT "ff05::fd"
76 static struct in6_addr IPv6MulticastAddressSit;
77 #define IPv6_MULTICAST_ORG "ff08::fd"
78 static struct in6_addr IPv6MulticastAddressOrg;
79 #define IPv6_MULTICAST_GLB "ff0e::fd"
80 static struct in6_addr IPv6MulticastAddressGlb;
82 static char *ipv6mcnames[IPv6_DOMAINS] = {
101 static CAIPExceptionCallback g_exceptionCallback;
103 static CAIPPacketReceivedCallback g_packetReceivedCallback;
105 static void CAHandleNetlink();
106 static void CAApplyInterfaces();
107 static void CAFindReadyMessage();
108 static void CASelectReturned(fd_set *readFds, int ret);
109 static CAResult_t CAReceiveMessage(int fd, CATransportFlags_t flags);
111 #define SET(TYPE, FDS) \
112 if (caglobals.ip.TYPE.fd != -1) \
114 FD_SET(caglobals.ip.TYPE.fd, FDS); \
117 #define ISSET(TYPE, FDS, FLAGS) \
118 if (caglobals.ip.TYPE.fd != -1 && FD_ISSET(caglobals.ip.TYPE.fd, FDS)) \
120 fd = caglobals.ip.TYPE.fd; \
124 static void CAReceiveHandler(void *data)
126 OIC_LOG(DEBUG, TAG, "IN");
128 while (!caglobals.ip.terminate)
130 CAFindReadyMessage();
133 OIC_LOG(DEBUG, TAG, "OUT");
136 static void CAFindReadyMessage()
139 struct timeval timeout;
141 timeout.tv_sec = caglobals.ip.selectTimeout;
143 struct timeval *tv = caglobals.ip.selectTimeout == -1 ? NULL : &timeout;
154 if (caglobals.ip.shutdownFds[0] != -1)
156 FD_SET(caglobals.ip.shutdownFds[0], &readFds);
158 if (caglobals.ip.netlinkFd != -1)
160 FD_SET(caglobals.ip.netlinkFd, &readFds);
163 int ret = select(caglobals.ip.maxfd + 1, &readFds, NULL, NULL, tv);
165 if (caglobals.ip.terminate)
167 OIC_LOG_V(DEBUG, TAG, "Packet receiver Stop request received.");
174 OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
179 CASelectReturned(&readFds, ret);
182 static void CASelectReturned(fd_set *readFds, int ret)
185 CATransportFlags_t flags = CA_DEFAULT_FLAGS;
187 while (!caglobals.ip.terminate)
189 ISSET(u6, readFds, CA_IPV6)
190 else ISSET(u6s, readFds, CA_IPV6 | CA_SECURE)
191 else ISSET(u4, readFds, CA_IPV4)
192 else ISSET(u4s, readFds, CA_IPV4 | CA_SECURE)
193 else ISSET(m6, readFds, CA_MULTICAST | CA_IPV6)
194 else ISSET(m6s, readFds, CA_MULTICAST | CA_IPV6 | CA_SECURE)
195 else ISSET(m4, readFds, CA_MULTICAST | CA_IPV4)
196 else ISSET(m4s, readFds, CA_MULTICAST | CA_IPV4 | CA_SECURE)
197 else if (FD_ISSET(caglobals.ip.netlinkFd, readFds))
207 (void)CAReceiveMessage(fd, flags);
212 static CAResult_t CAReceiveMessage(int fd, CATransportFlags_t flags)
214 char recvBuffer[COAP_MAX_PDU_SIZE];
216 struct sockaddr_storage srcAddr;
217 socklen_t srcAddrLen = sizeof (srcAddr);
219 ssize_t recvLen = recvfrom(fd,
223 (struct sockaddr *)&srcAddr,
227 OIC_LOG_V(ERROR, TAG, "Recvfrom failed %s", strerror(errno));
228 return CA_STATUS_FAILED;
231 CAEndpoint_t ep = { CA_ADAPTER_IP, flags };
235 ep.interface = ((struct sockaddr_in6 *)&srcAddr)->sin6_scope_id;
236 ((struct sockaddr_in6 *)&srcAddr)->sin6_scope_id = 0;
238 CAConvertAddrToName(&srcAddr, ep.addr, &ep.port);
240 if (flags & CA_SECURE)
243 int ret = CAAdapterNetDtlsDecrypt(&ep, (uint8_t *)recvBuffer, recvLen);
244 OIC_LOG_V(DEBUG, TAG, "CAAdapterNetDtlsDecrypt returns [%d]", ret);
246 OIC_LOG(ERROR, TAG, "Encrypted message but no DTLS");
251 if (g_packetReceivedCallback)
253 g_packetReceivedCallback(&ep, recvBuffer, recvLen);
262 OIC_LOG(DEBUG, TAG, "IN");
263 OIC_LOG(DEBUG, TAG, "OUT");
266 static int CACreateSocket(int family, uint16_t *port)
268 int socktype = SOCK_DGRAM;
270 socktype |= SOCK_CLOEXEC;
272 int fd = socket(family, socktype, IPPROTO_UDP);
275 OIC_LOG_V(ERROR, TAG, "create socket failed: %s", strerror(errno));
280 int fl = fcntl(fd, F_GETFD);
281 if (-1 == fl || -1 == fcntl(fd, F_SETFD, fl|FD_CLOEXEC))
283 OIC_LOG_V(ERROR, TAG, "set FD_CLOEXEC failed: %s", strerror(errno));
289 struct sockaddr_storage sa = { family };
290 if (family == AF_INET6)
293 if (-1 == setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on)))
295 OIC_LOG_V(ERROR, TAG, "IPV6_V6ONLY failed: %s", strerror(errno));
297 ((struct sockaddr_in6 *)&sa)->sin6_port = htons(*port);
301 ((struct sockaddr_in *)&sa)->sin_port = htons(*port);
304 if (*port) // use the given port
307 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof (on)))
309 OIC_LOG_V(ERROR, TAG, "SO_REUSEADDR failed: %s", strerror(errno));
315 if (-1 == bind(fd, (struct sockaddr *)&sa, sizeof(sa)))
317 OIC_LOG_V(ERROR, TAG, "bind socket failed: %s", strerror(errno));
322 if (!*port) // return the assigned port
324 struct sockaddr_storage sa;
325 socklen_t socklen = sizeof (sa);
326 if (-1 == getsockname(fd, (struct sockaddr *)&sa, &socklen))
328 OIC_LOG_V(ERROR, TAG, "getsockname failed: %s", strerror(errno));
332 *port = ntohs(family == AF_INET6 ?
333 ((struct sockaddr_in6 *)&sa)->sin6_port :
334 ((struct sockaddr_in *)&sa)->sin_port);
340 #define CHECKFD(FD) \
341 if (FD > caglobals.ip.maxfd) \
342 caglobals.ip.maxfd = FD;
343 #define NEWSOCKET(FAMILY, NAME) \
344 caglobals.ip.NAME.fd = CACreateSocket(FAMILY, &caglobals.ip.NAME.port); \
345 CHECKFD(caglobals.ip.NAME.fd)
347 static void CAInitializeNetlink()
350 // create NETLINK fd for interface change notifications
351 struct sockaddr_nl sa = { AF_NETLINK, 0, 0, RTMGRP_LINK };
353 caglobals.ip.netlinkFd = socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE);
354 if (caglobals.ip.netlinkFd == -1)
356 OIC_LOG_V(ERROR, TAG, "netlink socket failed: %s", strerror(errno));
360 int r = bind(caglobals.ip.netlinkFd, (struct sockaddr *)&sa, sizeof (sa));
363 OIC_LOG_V(ERROR, TAG, "netlink bind failed: %s", strerror(errno));
364 close(caglobals.ip.netlinkFd);
365 caglobals.ip.netlinkFd = -1;
369 CHECKFD(caglobals.ip.netlinkFd);
375 static void CAInitializePipe()
377 caglobals.ip.selectTimeout = -1;
379 int ret = pipe2(caglobals.ip.shutdownFds, O_CLOEXEC);
381 int ret = pipe(caglobals.ip.shutdownFds);
384 ret = fcntl(caglobals.ip.shutdownFds[0], F_GETFD);
387 ret = fcntl(caglobals.ip.shutdownFds[0], F_SETFD, ret|FD_CLOEXEC);
391 ret = fcntl(caglobals.ip.shutdownFds[1], F_GETFD);
395 ret = fcntl(caglobals.ip.shutdownFds[1], F_SETFD, ret|FD_CLOEXEC);
399 close(caglobals.ip.shutdownFds[1]);
400 close(caglobals.ip.shutdownFds[0]);
401 caglobals.ip.shutdownFds[0] = -1;
402 caglobals.ip.shutdownFds[1] = -1;
408 OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
409 caglobals.ip.selectTimeout = SELECT_TIMEOUT; //poll needed for shutdown
413 CAResult_t CAIPStartServer(const ca_thread_pool_t threadPool)
415 CAResult_t res = CA_STATUS_OK;
417 if (caglobals.ip.started)
422 if (!IPv4MulticastAddress.s_addr)
424 (void)inet_aton(IPv4_MULTICAST, &IPv4MulticastAddress);
425 (void)inet_pton(AF_INET6, IPv6_MULTICAST_INT, &IPv6MulticastAddressInt);
426 (void)inet_pton(AF_INET6, IPv6_MULTICAST_LNK, &IPv6MulticastAddressLnk);
427 (void)inet_pton(AF_INET6, IPv6_MULTICAST_RLM, &IPv6MulticastAddressRlm);
428 (void)inet_pton(AF_INET6, IPv6_MULTICAST_ADM, &IPv6MulticastAddressAdm);
429 (void)inet_pton(AF_INET6, IPv6_MULTICAST_SIT, &IPv6MulticastAddressSit);
430 (void)inet_pton(AF_INET6, IPv6_MULTICAST_ORG, &IPv6MulticastAddressOrg);
431 (void)inet_pton(AF_INET6, IPv6_MULTICAST_GLB, &IPv6MulticastAddressGlb);
434 if (!caglobals.ip.ipv6enabled && !caglobals.ip.ipv4enabled)
436 caglobals.ip.ipv4enabled = true; // only needed to run CA tests
439 if (caglobals.ip.ipv6enabled)
441 NEWSOCKET(AF_INET6, u6)
442 NEWSOCKET(AF_INET6, u6s)
443 NEWSOCKET(AF_INET6, m6)
444 NEWSOCKET(AF_INET6, m6s)
445 OIC_LOG_V(INFO, TAG, "IPv6 unicast port: %u", caglobals.ip.u6.port);
447 if (caglobals.ip.ipv4enabled)
449 NEWSOCKET(AF_INET, u4)
450 NEWSOCKET(AF_INET, u4s)
451 NEWSOCKET(AF_INET, m4)
452 NEWSOCKET(AF_INET, m4s)
453 OIC_LOG_V(INFO, TAG, "IPv4 unicast port: %u", caglobals.ip.u4.port);
456 OIC_LOG_V(DEBUG, TAG,
457 "socket summary: u6=%d, u6s=%d, u4=%d, u4s=%d, m6=%d, m6s=%d, m4=%d, m4s=%d",
458 caglobals.ip.u6.fd, caglobals.ip.u6s.fd,
459 caglobals.ip.u4.fd, caglobals.ip.u4s.fd,
460 caglobals.ip.m6.fd, caglobals.ip.m6s.fd,
461 caglobals.ip.m4.fd, caglobals.ip.m4s.fd);
463 // create pipe for fast shutdown
465 CHECKFD(caglobals.ip.shutdownFds[0]);
466 CHECKFD(caglobals.ip.shutdownFds[1]);
468 // create source of network interface change notifications
469 CAInitializeNetlink();
473 caglobals.ip.terminate = false;
474 res = ca_thread_pool_add_task(threadPool, CAReceiveHandler, NULL);
475 if (CA_STATUS_OK != res)
477 OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
480 OIC_LOG(DEBUG, TAG, "CAReceiveHandler thread started successfully.");
482 caglobals.ip.started = true;
486 void CAIPStopServer()
488 OIC_LOG(DEBUG, TAG, "IN");
490 caglobals.ip.terminate = true;
492 if (caglobals.ip.shutdownFds[1] != -1)
494 close(caglobals.ip.shutdownFds[1]);
495 // receive thread will stop immediately
499 // receive thread will stop in SELECT_TIMEOUT seconds.
502 OIC_LOG(DEBUG, TAG, "OUT");
505 static void applyMulticastToInterface4(struct in_addr inaddr)
507 if (!caglobals.ip.ipv4enabled)
512 struct ip_mreq mreq = { IPv4MulticastAddress };
513 mreq.imr_interface = inaddr;
514 if (setsockopt(caglobals.ip.m4.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
516 if (EADDRINUSE != errno)
518 OIC_LOG_V(ERROR, TAG, "IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
521 if (setsockopt(caglobals.ip.m4s.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
523 if (EADDRINUSE != errno)
525 OIC_LOG_V(ERROR, TAG, "secure IPv4 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
530 static void applyMulticast6(int fd, struct in6_addr *addr, uint32_t interface)
532 struct ipv6_mreq mreq;
533 mreq.ipv6mr_multiaddr = *addr;
534 mreq.ipv6mr_interface = interface;
535 if (setsockopt(fd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq, sizeof (mreq)))
537 if (EADDRINUSE != errno)
539 OIC_LOG_V(ERROR, TAG, "IPv6 IP_ADD_MEMBERSHIP failed: %s", strerror(errno));
544 static void applyMulticastToInterface6(uint32_t interface)
546 if (!caglobals.ip.ipv6enabled)
550 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressInt, interface);
551 applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressLnk, interface);
552 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressRlm, interface);
553 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressAdm, interface);
554 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressSit, interface);
555 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressOrg, interface);
556 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressGlb, interface);
557 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressInt, interface);
558 applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressLnk, interface);
559 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressRlm, interface);
560 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressAdm, interface);
561 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressSit, interface);
562 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressOrg, interface);
563 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressGlb, interface);
566 static void CAApplyInterfaces()
568 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
571 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
575 uint32_t len = u_arraylist_length(iflist);
576 OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
578 for (uint32_t i = 0; i < len; i++)
580 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
582 if ((ifitem->flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
586 if (ifitem->family == AF_INET)
588 struct in_addr inaddr;
589 inaddr.s_addr = ifitem->ipv4addr;
590 applyMulticastToInterface4(inaddr);
591 OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s", ifitem->name);
593 if (ifitem->family == AF_INET6)
595 applyMulticastToInterface6(ifitem->index);
596 OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
600 u_arraylist_destroy(iflist);
603 static void CAHandleNetlink()
608 struct sockaddr_nl sa;
609 struct iovec iov = { buf, sizeof(buf) };
610 struct msghdr msg = { (void *)&sa, sizeof(sa), &iov, 1, NULL, 0, 0 };
612 int len = recvmsg(caglobals.ip.netlinkFd, &msg, 0);
613 for (nh = (struct nlmsghdr *)buf; NLMSG_OK(nh, len); nh = NLMSG_NEXT(nh, len))
615 if (nh->nlmsg_type == RTM_NEWLINK)
617 struct ifinfomsg *ifi = (struct ifinfomsg *)NLMSG_DATA(nh);
618 if ((ifi->ifi_flags & IFF_LOOPBACK) || !(ifi->ifi_flags & IFF_RUNNING))
623 int newIndex = ifi->ifi_index;
625 u_arraylist_t *iflist = CAIPGetInterfaceInformation(newIndex);
628 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
632 uint32_t len = u_arraylist_length(iflist);
633 for (uint32_t i = 0; i < len; i++)
635 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
636 if (ifitem->index != newIndex)
641 applyMulticastToInterface6(newIndex);
642 struct in_addr inaddr;
643 inaddr.s_addr = ifitem->ipv4addr;
644 applyMulticastToInterface4(inaddr);
645 break; // we found the one we were looking for
647 u_arraylist_destroy(iflist);
653 void CAIPSetPacketReceiveCallback(CAIPPacketReceivedCallback callback)
655 OIC_LOG(DEBUG, TAG, "IN");
657 g_packetReceivedCallback = callback;
659 OIC_LOG(DEBUG, TAG, "OUT");
662 void CAIPSetExceptionCallback(CAIPExceptionCallback callback)
664 OIC_LOG(DEBUG, TAG, "IN");
666 g_exceptionCallback = callback;
668 OIC_LOG(DEBUG, TAG, "OUT");
671 static void sendData(int fd, const CAEndpoint_t *endpoint,
672 const void *data, uint32_t dlen,
673 const char *cast, const char *fam)
675 OIC_LOG(DEBUG, TAG, "IN");
677 char *secure = (endpoint->flags & CA_SECURE) ? "secure " : "";
678 (void)secure; // eliminates release warning
679 struct sockaddr_storage sock;
680 CAConvertNameToAddr(endpoint->addr, endpoint->port, &sock);
682 if (sock.ss_family == AF_INET6)
684 struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sock;
685 if (!sock6->sin6_scope_id)
687 sock6->sin6_scope_id = endpoint->interface;
691 ssize_t len = sendto(fd, data, dlen, 0, (struct sockaddr *)&sock, sizeof (sock));
694 OIC_LOG_V(ERROR, TAG, "%s%s %s sendTo failed: %s", secure, cast, fam, strerror(errno));
698 OIC_LOG_V(INFO, TAG, "%s%s %s sendTo is successful: %d bytes", secure, cast, fam, len);
702 static void sendMulticastData6(const u_arraylist_t *iflist,
703 CAEndpoint_t *endpoint,
704 const void *data, uint32_t datalen)
706 int scope = endpoint->flags & CA_SCOPE_MASK;
707 char *ipv6mcname = ipv6mcnames[scope];
710 OIC_LOG_V(INFO, TAG, "IPv6 multicast scope invalid: %d", scope);
713 strncpy(endpoint->addr, ipv6mcname, MAX_ADDR_STR_SIZE_CA);
714 int fd = caglobals.ip.u6.fd;
716 uint32_t len = u_arraylist_length(iflist);
717 for (uint32_t i = 0; i < len; i++)
719 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
720 if ((ifitem->flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
724 if (ifitem->family != AF_INET6)
729 int index = ifitem->index;
730 if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF, &index, sizeof (index)))
732 OIC_LOG_V(ERROR, TAG, "setsockopt6 failed: %s", strerror(errno));
735 sendData(fd, endpoint, data, datalen, "multicast", "ipv6");
739 static void sendMulticastData4(const u_arraylist_t *iflist,
740 CAEndpoint_t *endpoint,
741 const void *data, uint32_t datalen)
743 struct ip_mreq mreq = { IPv4MulticastAddress };
744 strncpy(endpoint->addr, IPv4_MULTICAST, MAX_ADDR_STR_SIZE_CA);
745 int fd = caglobals.ip.u4.fd;
747 uint32_t len = u_arraylist_length(iflist);
748 for (uint32_t i = 0; i < len; i++)
750 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
751 if ((ifitem->flags & (IFF_UP|IFF_RUNNING)) != (IFF_UP|IFF_RUNNING))
755 if (ifitem->family != AF_INET)
760 struct in_addr inaddr;
761 inaddr.s_addr = ifitem->ipv4addr;
762 mreq.imr_interface = inaddr;
763 if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, &mreq, sizeof (mreq)))
765 OIC_LOG_V(ERROR, TAG, "send IP_MULTICAST_IF failed: %s (using defualt)", strerror(errno));
767 sendData(fd, endpoint, data, datalen, "multicast", "ipv4");
771 void CAIPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
774 VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
775 VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
777 bool isSecure = (endpoint->flags & CA_SECURE) != 0;
781 endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
783 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
786 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
790 if ((endpoint->flags & CA_IPV6) && caglobals.ip.ipv6enabled)
792 sendMulticastData6(iflist, endpoint, data, datalen);
794 if ((endpoint->flags & CA_IPV4) && caglobals.ip.ipv4enabled)
796 sendMulticastData4(iflist, endpoint, data, datalen);
799 u_arraylist_destroy(iflist);
803 if (!endpoint->port) // unicast discovery
805 endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
809 if (caglobals.ip.ipv6enabled && (endpoint->flags & CA_IPV6))
811 fd = isSecure ? caglobals.ip.u6s.fd : caglobals.ip.u6.fd;
812 #ifndef __WITH_DTLS__
813 fd = caglobals.ip.u6.fd;
815 sendData(fd, endpoint, data, datalen, "unicast", "ipv6");
817 if (caglobals.ip.ipv4enabled && (endpoint->flags & CA_IPV4))
819 fd = isSecure ? caglobals.ip.u4s.fd : caglobals.ip.u4.fd;
820 #ifndef __WITH_DTLS__
821 fd = caglobals.ip.u4.fd;
823 sendData(fd, endpoint, data, datalen, "unicast", "ipv4");
828 CAResult_t CAGetIPInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
830 OIC_LOG(DEBUG, TAG, "IN");
832 VERIFY_NON_NULL(info, TAG, "info is NULL");
833 VERIFY_NON_NULL(size, TAG, "size is NULL");
835 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
838 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
839 return CA_STATUS_FAILED;
842 uint32_t len = u_arraylist_length(iflist);
844 CAEndpoint_t *eps = (CAEndpoint_t *)OICCalloc(len, sizeof (CAEndpoint_t));
847 OIC_LOG(ERROR, TAG, "Malloc Failed");
848 u_arraylist_destroy(iflist);
849 return CA_MEMORY_ALLOC_FAILED;
852 for (uint32_t i = 0, j = 0; i < len; i++)
854 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
856 OICStrcpy(eps[j].addr, CA_INTERFACE_NAME_SIZE, ifitem->name);
857 eps[j].flags = ifitem->family == AF_INET6 ? CA_IPV6 : CA_IPV4;
858 eps[j].adapter = CA_ADAPTER_IP;
859 eps[j].interface = 0;
867 u_arraylist_destroy(iflist);
869 OIC_LOG(DEBUG, TAG, "OUT");