1 /* ****************************************************************
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 #ifndef __APPLE_USE_RFC_3542
22 #define __APPLE_USE_RFC_3542 // for PKTINFO
25 #define _GNU_SOURCE // for in6_pktinfo
29 #include <tinyara/config.h>
34 #include "iotivity_config.h"
35 #include <sys/types.h>
37 #include <sys/socket.h>
50 #if !defined(_MSC_VER)
52 #endif //!defined(_MSC_VER)
53 #include <sys/types.h>
57 #include <arpa/inet.h>
58 #include <netinet/in.h>
63 #include <linux/netlink.h>
64 #include <linux/rtnetlink.h>
73 #include "caipinterface.h"
74 #include "caipnwmonitor.h"
75 #include "caadapterutils.h"
76 #if defined(__WITH_DTLS__) || defined(__WITH_TLS__)
77 #include "ca_adapter_net_ssl.h"
80 #include "oic_malloc.h"
81 #include "oic_string.h"
93 * Logging tag for module name
95 //#define TAG "OIC_CA_IP_SERVER"
96 #define TAG IP_SERVER_TAG
100 #ifdef CONFIG_NET_LWIP
101 #define SOCK_CLOEXEC 0
103 #define SOCK_CLOEXEC 1
106 #define SELECT_TIMEOUT 1 // select() seconds (and termination latency)
108 #define IPv4_MULTICAST "224.0.1.187"
109 static struct in_addr IPv4MulticastAddress = { 0 };
111 #define IPv6_DOMAINS 16
112 #define MOBILE_INTERFACES 2
113 #define IPv6_MULTICAST_INT "ff01::158"
114 static struct in6_addr IPv6MulticastAddressInt;
115 #define IPv6_MULTICAST_LNK "ff02::158"
116 static struct in6_addr IPv6MulticastAddressLnk;
117 #define IPv6_MULTICAST_RLM "ff03::158"
118 static struct in6_addr IPv6MulticastAddressRlm;
119 #define IPv6_MULTICAST_ADM "ff04::158"
120 static struct in6_addr IPv6MulticastAddressAdm;
121 #define IPv6_MULTICAST_SIT "ff05::158"
122 static struct in6_addr IPv6MulticastAddressSit;
123 #define IPv6_MULTICAST_ORG "ff08::158"
124 static struct in6_addr IPv6MulticastAddressOrg;
125 #define IPv6_MULTICAST_GLB "ff0e::158"
126 static struct in6_addr IPv6MulticastAddressGlb;
129 * Buffer size for the receive message buffer
131 #define RECV_MSG_BUF_LEN 16384
133 static char *ipv6mcnames[IPv6_DOMAINS] = {
153 static char *mobileinferfaces[MOBILE_INTERFACES] = {
159 struct in6_addr ipi6_addr;
165 unsigned int ipi_ifindex; /* Interface index */
166 struct in_addr ipi_spec_dst; /* Local address */
167 struct in_addr ipi_addr; /* Header Destination
172 #define RTMGRP_LINK 1
174 #define IPV6_PKTINFO 50
175 #define IPV6_MULTICAST_IF 9
176 #define IPV6_V6ONLY 27
177 #define IPV6_RECVPKTINFO 50
178 #define IPV6_JOIN_GROUP 12
182 * By default, IP multicast datagrams are sent with a time-to-live (TTL) of 1.
183 * An application can choose an initial TTL.
185 static size_t multicastTTL = 1;
188 #define IFF_UP_RUNNING_FLAGS (IFF_UP)
190 char* caips_get_error(){
191 static char buffer[32];
192 snprintf(buffer, 32, "%i", WSAGetLastError());
195 #define CAIPS_GET_ERROR \
198 #define IFF_UP_RUNNING_FLAGS (IFF_UP|IFF_RUNNING)
200 #define CAIPS_GET_ERROR \
203 static CAIPErrorHandleCallback g_ipErrorHandler = NULL;
205 static CAIPPacketReceivedCallback g_packetReceivedCallback = NULL;
207 static void CAFindReadyMessage();
208 #if !defined(WSA_WAIT_EVENT_0)
209 static void CAPollReturned(struct pollfd *readFds, int ret);
211 static void CAEventReturned(CASocketFd_t socket);
214 static CAResult_t CAReceiveMessage(CASocketFd_t fd, CATransportFlags_t flags);
217 static int cleanup_pop_arg = 1;
219 static void CAIPCleanupHandler(void *arg)
223 OIC_LOG(DEBUG, TAG, "Called clean-up handler");
225 if (caglobals.ip.shutdownFds[0] != OC_INVALID_SOCKET)
227 close(caglobals.ip.shutdownFds[0]);
228 caglobals.ip.shutdownFds[0] = OC_INVALID_SOCKET;
232 static void CAReceiveHandler(void *data)
235 OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
237 pthread_cleanup_push(CAIPCleanupHandler, NULL);
239 while (!caglobals.ip.terminate)
241 CAFindReadyMessage();
244 pthread_cleanup_pop(cleanup_pop_arg);
246 OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
249 static void CAReceiveHandler(void *data)
252 OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
254 while (!caglobals.ip.terminate)
256 CAFindReadyMessage();
259 if (caglobals.ip.shutdownFds[0] != OC_INVALID_SOCKET)
261 close(caglobals.ip.shutdownFds[0]);
262 caglobals.ip.shutdownFds[0] = OC_INVALID_SOCKET;
265 OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
269 #if !defined(WSA_WAIT_EVENT_0)
271 #define CLOSE_SOCKET(TYPE) \
272 if (caglobals.ip.TYPE.fd != OC_INVALID_SOCKET) \
274 close(caglobals.ip.TYPE.fd); \
275 caglobals.ip.TYPE.fd = OC_INVALID_SOCKET; \
278 #define SET(TYPE, FDS, COUNT) \
279 FDS[COUNT].fd = caglobals.ip.TYPE.fd; \
280 FDS[COUNT].events = POLLIN;
282 #define MAX_UDP_SOCK_COUNT 8
284 static const CASocketFd_t *sockFdPtr[MAX_UDP_SOCK_COUNT] = {
286 &caglobals.ip.u6s.fd,
288 &caglobals.ip.u4s.fd,
290 &caglobals.ip.m6s.fd,
295 static const CATransportFlags_t inputflags[MAX_UDP_SOCK_COUNT] = {
300 CA_MULTICAST | CA_IPV6,
301 CA_MULTICAST | CA_IPV6 | CA_SECURE,
302 CA_MULTICAST | CA_IPV4,
303 CA_MULTICAST | CA_IPV4 | CA_SECURE
306 static void CAFindReadyMessage()
308 struct pollfd readFds[MAX_UDP_SOCK_COUNT + 2]; // 8 UDP sockets, 1 netlink and 1 read pipe socket fd
309 int timeout = (caglobals.ip.selectTimeout * 1000);
312 SET(u6, readFds, counter);
314 SET(u6s, readFds, counter);
316 SET(u4, readFds, counter);
318 SET(u4s, readFds, counter);
320 SET(m6, readFds, counter);
322 SET(m6s, readFds, counter);
324 SET(m4, readFds, counter);
326 SET(m4s, readFds, counter);
330 readFds[counter].fd = caglobals.ip.shutdownFds[0];
331 readFds[counter].events = POLLIN;
334 readFds[counter].fd = caglobals.ip.netlinkFd;
335 readFds[counter].events = POLLIN;
339 int ret = poll(readFds, counter, timeout);
340 if (caglobals.ip.terminate)
342 OIC_LOG_V(INFO, TAG, "Packet receiver Stop request received.");
346 u_arraylist_t *iflist = CAFindInterfaceChange();
349 uint32_t listLength = u_arraylist_length(iflist);
350 for (uint32_t i = 0; i < listLength; i++)
352 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
355 CAProcessNewInterface(ifitem);
358 u_arraylist_destroy(iflist);
363 CAPollReturned(readFds, ret);
367 usleep(1000); /* Incase of failure of FastShutdownMechanism timeout will be set to 1.
368 some of the fields are not set by kernel on repeatedly calling
369 poll.Applying a sleep will solve this by providing a delay
370 between each subsequent poll system call */
374 OIC_LOG_V(FATAL, TAG, "poll error %s", CAIPS_GET_ERROR);
378 static void CAPollReturned(struct pollfd *readFds, int ret)
384 for (int i = 0; i < MAX_UDP_SOCK_COUNT && !caglobals.ip.terminate; i++)
386 if (*sockFdPtr[i] != OC_INVALID_SOCKET && readFds[i].revents == POLLIN)
388 (void)CAReceiveMessage(readFds[i].fd, inputflags[i]);
394 if (caglobals.ip.terminate)
399 if (caglobals.ip.shutdownFds[0] != -1 && readFds[counter].revents != 0)
402 ssize_t len = read(caglobals.ip.shutdownFds[0], buf, sizeof (buf));
405 // Write end of the pipe is closed. Indicates the termination of UDP server.
412 if (!caglobals.ip.terminate &&
413 (caglobals.ip.netlinkFd != OC_INVALID_SOCKET) && readFds[counter].revents != 0)
415 u_arraylist_t *iflist = CAFindInterfaceChange();
418 uint32_t listLength = u_arraylist_length(iflist);
419 for (uint32_t i = 0; i < listLength; i++)
421 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
424 CAProcessNewInterface(ifitem);
427 u_arraylist_destroy(iflist);
433 #else // if defined(WSA_WAIT_EVENT_0)
435 #define CLOSE_SOCKET(TYPE) \
436 if (caglobals.ip.TYPE.fd != OC_INVALID_SOCKET) \
438 closesocket(caglobals.ip.TYPE.fd); \
439 caglobals.ip.TYPE.fd = OC_INVALID_SOCKET; \
442 #define PUSH_HANDLE(HANDLE, ARRAY, INDEX) \
444 ARRAY[INDEX] = HANDLE; \
448 // Turn handle into WSAEvent and push to ARRAY
449 #define PUSH_SOCKET(SOCKET, ARRAY, INDEX) \
450 if (SOCKET != OC_INVALID_SOCKET) \
453 NewEvent = WSACreateEvent(); \
454 if (WSA_INVALID_EVENT != NewEvent) \
456 if (0 != WSAEventSelect(SOCKET, NewEvent, FD_READ)) \
458 OIC_LOG_V(ERROR, TAG, "WSAEventSelect failed 0x%08x ", WSAGetLastError()); \
459 if (!WSACloseEvent(NewEvent)) \
461 OIC_LOG_V(ERROR, TAG, "WSACloseEvent(NewEvent) failed 0x%08x", WSAGetLastError()); \
466 PUSH_HANDLE(NewEvent, ARRAY, INDEX); \
471 OIC_LOG_V(ERROR, TAG, "WSACreateEvent(NewEvent) failed 0x%08x", WSAGetLastError()); \
475 #define INSERT_SOCKET(FD, ARRAY, INDEX) \
477 if (OC_INVALID_SOCKET != FD) \
484 // Inserts the socket into the SOCKET_ARRAY and pushes the socket event into EVENT_ARRAY
485 #define PUSH_IP_SOCKET(TYPE, EVENT_ARRAY, SOCKET_ARRAY, INDEX) \
487 if (OC_INVALID_SOCKET != caglobals.ip.TYPE.fd) \
489 INSERT_SOCKET(caglobals.ip.TYPE.fd, SOCKET_ARRAY, INDEX); \
490 PUSH_SOCKET(caglobals.ip.TYPE.fd, EVENT_ARRAY, INDEX); \
494 #define IS_MATCHING_IP_SOCKET(TYPE, SOCKET, FLAGS) \
495 if ((caglobals.ip.TYPE.fd != OC_INVALID_SOCKET) && (caglobals.ip.TYPE.fd == SOCKET)) \
497 fd = caglobals.ip.TYPE.fd; \
501 #define EVENT_ARRAY_SIZE 10
503 static void CAFindReadyMessage()
505 CASocketFd_t socketArray[EVENT_ARRAY_SIZE];
506 HANDLE eventArray[EVENT_ARRAY_SIZE];
510 // socketArray and eventArray should have same number of elements
511 OC_STATIC_ASSERT(_countof(socketArray) == _countof(eventArray), "Arrays should have same number of elements");
513 PUSH_IP_SOCKET(u6, eventArray, socketArray, arraySize);
514 PUSH_IP_SOCKET(u6s, eventArray, socketArray, arraySize);
515 PUSH_IP_SOCKET(u4, eventArray, socketArray, arraySize);
516 PUSH_IP_SOCKET(u4s, eventArray, socketArray, arraySize);
517 PUSH_IP_SOCKET(m6, eventArray, socketArray, arraySize);
518 PUSH_IP_SOCKET(m6s, eventArray, socketArray, arraySize);
519 PUSH_IP_SOCKET(m4, eventArray, socketArray, arraySize);
520 PUSH_IP_SOCKET(m4s, eventArray, socketArray, arraySize);
522 if (WSA_INVALID_EVENT != caglobals.ip.shutdownEvent)
524 INSERT_SOCKET(OC_INVALID_SOCKET, socketArray, arraySize);
525 PUSH_HANDLE(caglobals.ip.shutdownEvent, eventArray, arraySize);
528 /** @todo Support netlink events */
530 // Should not have overflowed buffer
531 assert(arraySize <= (_countof(socketArray)));
533 // Timeout is unnecessary on Windows
534 assert(-1 == caglobals.ip.selectTimeout);
536 while (!caglobals.ip.terminate)
538 int ret = WSAWaitForMultipleEvents(arraySize, eventArray, FALSE, WSA_INFINITE, FALSE);
542 case WSA_WAIT_FAILED:
543 OIC_LOG_V(ERROR, TAG, "WSAWaitForMultipleEvents returned WSA_WAIT_FAILED 0x%08x", WSAGetLastError());
545 case WSA_WAIT_IO_COMPLETION:
546 OIC_LOG_V(ERROR, TAG, "WSAWaitForMultipleEvents returned WSA_WAIT_IO_COMPLETION 0x%08x", WSAGetLastError());
548 case WSA_WAIT_TIMEOUT:
549 OIC_LOG_V(ERROR, TAG, "WSAWaitForMultipleEvents returned WSA_WAIT_TIMEOUT 0x%08x", WSAGetLastError());
552 eventIndex = ret - WSA_WAIT_EVENT_0;
553 if ((eventIndex >= 0) && (eventIndex < arraySize))
555 if (false == WSAResetEvent(eventArray[eventIndex]))
557 OIC_LOG_V(ERROR, TAG, "WSAResetEvent failed 0x%08x", WSAGetLastError());
560 // Break out if shutdownEvent is triggered.
561 if ((caglobals.ip.shutdownEvent != WSA_INVALID_EVENT) &&
562 (caglobals.ip.shutdownEvent == eventArray[eventIndex]))
566 CAEventReturned(socketArray[eventIndex]);
570 OIC_LOG_V(ERROR, TAG, "WSAWaitForMultipleEvents failed 0x%08x", WSAGetLastError());
577 while (arraySize > 0)
580 if (!WSACloseEvent(eventArray[arraySize]))
582 OIC_LOG_V(ERROR, TAG, "WSACloseEvent (Index %i) failed 0x%08x", arraySize, WSAGetLastError());
586 if (caglobals.ip.terminate)
588 caglobals.ip.shutdownEvent = WSA_INVALID_EVENT;
593 static void CAEventReturned(CASocketFd_t socket)
595 CASocketFd_t fd = OC_INVALID_SOCKET;
596 CATransportFlags_t flags = CA_DEFAULT_FLAGS;
598 while (!caglobals.ip.terminate)
600 IS_MATCHING_IP_SOCKET(u6, socket, CA_IPV6)
601 else IS_MATCHING_IP_SOCKET(u6s, socket, CA_IPV6 | CA_SECURE)
602 else IS_MATCHING_IP_SOCKET(u4, socket, CA_IPV4)
603 else IS_MATCHING_IP_SOCKET(u4s, socket, CA_IPV4 | CA_SECURE)
604 else IS_MATCHING_IP_SOCKET(m6, socket, CA_MULTICAST | CA_IPV6)
605 else IS_MATCHING_IP_SOCKET(m6s, socket, CA_MULTICAST | CA_IPV6 | CA_SECURE)
606 else IS_MATCHING_IP_SOCKET(m4, socket, CA_MULTICAST | CA_IPV4)
607 else IS_MATCHING_IP_SOCKET(m4s, socket, CA_MULTICAST | CA_IPV4 | CA_SECURE)
612 (void)CAReceiveMessage(socket, flags);
613 // We will never get more than one match per socket, so always break.
620 void CADeInitializeIPGlobals()
622 CloseMulticastSocket();
624 if (caglobals.ip.netlinkFd != OC_INVALID_SOCKET)
627 closesocket(caglobals.ip.netlinkFd);
629 close(caglobals.ip.netlinkFd);
631 caglobals.ip.netlinkFd = OC_INVALID_SOCKET;
635 static CAResult_t CAReceiveMessage(CASocketFd_t fd, CATransportFlags_t flags)
637 OIC_LOG(DEBUG, TAG, "IN - CAReceiveMessage");
638 char recvBuffer[RECV_MSG_BUF_LEN] = {0};
644 struct sockaddr_storage srcAddr = { .ss_family = 0 };
645 unsigned char *pktinfo = NULL;
646 #if !defined(WSA_CMSG_DATA)
647 struct cmsghdr *cmp = NULL;
648 struct iovec iov = { .iov_base = recvBuffer, .iov_len = sizeof (recvBuffer) };
652 unsigned char data[CMSG_SPACE(sizeof (struct in6_pktinfo))];
657 namelen = sizeof (struct sockaddr_in6);
658 level = IPPROTO_IPV6;
660 len = sizeof (struct in6_pktinfo);
664 namelen = sizeof (struct sockaddr_in);
667 len = sizeof (struct in6_pktinfo);
670 struct msghdr msg = { .msg_name = &srcAddr,
671 .msg_namelen = namelen,
674 .msg_control = &cmsg,
675 .msg_controllen = CMSG_SPACE(len) };
677 ssize_t recvLen = recvmsg(fd, &msg, flags);
678 if (OC_SOCKET_ERROR == recvLen)
680 OIC_LOG_V(ERROR, TAG, "Recvfrom failed %s", strerror(errno));
681 return CA_STATUS_FAILED;
683 OIC_LOG_V(DEBUG, TAG, "recvd %zd bytes from recvmsg", recvLen);
685 if (flags & CA_MULTICAST)
687 for (cmp = CMSG_FIRSTHDR(&msg); cmp != NULL; cmp = CMSG_NXTHDR(&msg, cmp))
689 if (cmp->cmsg_level == level && cmp->cmsg_type == type)
691 pktinfo = CMSG_DATA(cmp);
695 #else // if defined(WSA_CMSG_DATA)
699 uint8_t data[WSA_CMSG_SPACE(sizeof (IN6_PKTINFO))];
701 memset(&cmsg, 0, sizeof(cmsg));
705 namelen = sizeof (struct sockaddr_in6);
706 level = IPPROTO_IPV6;
711 namelen = sizeof (struct sockaddr_in);
716 WSABUF iov = {.len = sizeof (recvBuffer), .buf = recvBuffer};
717 WSAMSG msg = {.name = (PSOCKADDR)&srcAddr,
721 .Control = {.buf = cmsg.data, .len = sizeof (cmsg)}
724 uint32_t recvLen = 0;
725 uint32_t ret = caglobals.ip.wsaRecvMsg(fd, &msg, &recvLen, 0,0);
726 OIC_LOG_V(DEBUG, TAG, "WSARecvMsg recvd %u bytes", recvLen);
727 if (OC_SOCKET_ERROR == ret)
729 OIC_LOG_V(ERROR, TAG, "WSARecvMsg failed %i", WSAGetLastError());
732 if (flags & CA_MULTICAST)
734 for (WSACMSGHDR *cmp = WSA_CMSG_FIRSTHDR(&msg); cmp != NULL;
735 cmp = WSA_CMSG_NXTHDR(&msg, cmp))
737 if (cmp->cmsg_level == level && cmp->cmsg_type == type)
739 pktinfo = WSA_CMSG_DATA(cmp);
743 #endif // !defined(WSA_CMSG_DATA)
744 CASecureEndpoint_t sep = {.endpoint = {.adapter = CA_ADAPTER_IP, .flags = flags}};
749 /** @todo figure out correct usage for ifindex, and sin6_scope_id.*/
750 if ((flags & CA_MULTICAST) && pktinfo)
752 struct in6_addr *addr = &(((struct in6_pktinfo *)pktinfo)->ipi6_addr);
753 unsigned char topbits = ((unsigned char *)addr)[0];
756 sep.endpoint.flags &= ~CA_MULTICAST;
763 if ((flags & CA_MULTICAST) && pktinfo)
765 struct in_addr *addr = &((struct in_pktinfo *)pktinfo)->ipi_addr;
766 uint32_t host = ntohl(addr->s_addr);
767 unsigned char topbits = ((unsigned char *)&host)[3];
768 if (topbits < 224 || topbits > 239)
770 sep.endpoint.flags &= ~CA_MULTICAST;
775 CAConvertAddrToName(&srcAddr, namelen, sep.endpoint.addr, &sep.endpoint.port);
777 if (flags & CA_SECURE)
780 int ret = CAdecryptSsl(&sep, (uint8_t *)recvBuffer, recvLen);
781 OIC_LOG_V(INFO, TAG, "CAdecryptSsl returns [%d]", ret);
783 OIC_LOG(ERROR, TAG, "Encrypted message but no DTLS");
788 if (g_packetReceivedCallback)
790 OIC_LOG(DEBUG, TAG, "call receivedCB");
791 g_packetReceivedCallback(&sep, recvBuffer, recvLen);
795 OIC_LOG(DEBUG, TAG, "OUT - CAReceiveMessage");
802 OIC_LOG(DEBUG, TAG, "IN");
803 OIC_LOG(DEBUG, TAG, "OUT");
806 static CASocketFd_t CACreateSocket(int family, uint16_t *port, bool isMulticast)
808 int socktype = SOCK_DGRAM;
810 socktype |= SOCK_CLOEXEC;
812 CASocketFd_t fd = socket(family, socktype, IPPROTO_UDP);
813 if (OC_INVALID_SOCKET == fd)
815 OIC_LOG_V(ERROR, TAG, "create socket failed: %s", CAIPS_GET_ERROR);
816 return OC_INVALID_SOCKET;
819 #if !defined(SOCK_CLOEXEC) && defined(FD_CLOEXEC)
820 int fl = fcntl(fd, F_GETFD);
821 if (-1 == fl || -1 == fcntl(fd, F_SETFD, fl|FD_CLOEXEC))
823 OIC_LOG_V(ERROR, TAG, "set FD_CLOEXEC failed: %s", strerror(errno));
825 return OC_INVALID_SOCKET;
828 struct sockaddr_storage sa = { .ss_family = family };
829 socklen_t socklen = 0;
831 if (family == AF_INET6)
835 if (OC_SOCKET_ERROR == setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, OPTVAL_T(&on), sizeof (on)))
837 OIC_LOG_V(ERROR, TAG, "IPV6_V6ONLY failed: %s", CAIPS_GET_ERROR);
840 if (isMulticast && *port) // only do this for multicast ports
842 #if defined(IPV6_RECVPKTINFO)
843 if (OC_SOCKET_ERROR == setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, sizeof (on)))
845 if (OC_SOCKET_ERROR == setsockopt(fd, IPPROTO_IPV6, IPV6_PKTINFO, OPTVAL_T(&on), sizeof (on)))
848 OIC_LOG_V(ERROR, TAG, "IPV6_RECVPKTINFO failed: %s",CAIPS_GET_ERROR);
852 ((struct sockaddr_in6 *)&sa)->sin6_port = htons(*port);
853 socklen = sizeof (struct sockaddr_in6);
857 if (isMulticast && *port) // only do this for multicast ports
860 if (OC_SOCKET_ERROR == setsockopt(fd, IPPROTO_IP, IP_PKTINFO, OPTVAL_T(&on), sizeof (on)))
862 OIC_LOG_V(ERROR, TAG, "IP_PKTINFO failed: %s", CAIPS_GET_ERROR);
866 ((struct sockaddr_in *)&sa)->sin_port = htons(*port);
867 socklen = sizeof (struct sockaddr_in);
870 if (isMulticast && *port) // use the given port
873 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, OPTVAL_T(&on), sizeof (on)))
875 OIC_LOG_V(ERROR, TAG, "SO_REUSEADDR failed: %s", CAIPS_GET_ERROR);
881 return OC_INVALID_SOCKET;
885 if (OC_SOCKET_ERROR == bind(fd, (struct sockaddr *)&sa, socklen))
887 OIC_LOG_V(ERROR, TAG, "bind socket failed: %s", CAIPS_GET_ERROR);
893 return OC_INVALID_SOCKET;
896 if (!*port) // return the assigned port
898 if (OC_SOCKET_ERROR == getsockname(fd, (struct sockaddr *)&sa, &socklen))
900 OIC_LOG_V(ERROR, TAG, "getsockname failed: %s", CAIPS_GET_ERROR);
906 return OC_INVALID_SOCKET;
908 *port = ntohs(family == AF_INET6 ?
909 ((struct sockaddr_in6 *)&sa)->sin6_port :
910 ((struct sockaddr_in *)&sa)->sin_port);
916 #define NEWSOCKET(FAMILY, NAME, MULTICAST) \
917 if (caglobals.ip.NAME.fd == OC_INVALID_SOCKET) \
919 caglobals.ip.NAME.fd = CACreateSocket(FAMILY, &caglobals.ip.NAME.port, MULTICAST); \
920 if (caglobals.ip.NAME.fd == OC_INVALID_SOCKET) \
922 caglobals.ip.NAME.port = 0; \
923 caglobals.ip.NAME.fd = CACreateSocket(FAMILY, &caglobals.ip.NAME.port, MULTICAST); \
927 void CreateMulticastSocket()
929 OIC_LOG_V(INFO, TAG, "In %s", __func__);
931 if (caglobals.ip.ipv6enabled)
933 NEWSOCKET(AF_INET6, u6, false)
934 NEWSOCKET(AF_INET6, u6s, false)
935 NEWSOCKET(AF_INET6, m6, true)
936 NEWSOCKET(AF_INET6, m6s, true)
937 OIC_LOG_V(INFO, TAG, "IPv6 unicast port: %u", caglobals.ip.u6.port);
939 if (caglobals.ip.ipv4enabled)
941 NEWSOCKET(AF_INET, u4, false)
942 NEWSOCKET(AF_INET, u4s, false)
943 NEWSOCKET(AF_INET, m4, true)
944 NEWSOCKET(AF_INET, m4s, true)
945 OIC_LOG_V(INFO, TAG, "IPv4 unicast port: %u", caglobals.ip.u4.port);
948 OIC_LOG_V(INFO, TAG, "Out %s", __func__);
951 void CloseMulticastSocket()
953 OIC_LOG_V(INFO, TAG, "In %s", __func__);
964 OIC_LOG_V(INFO, TAG, "Out %s", __func__);
967 static void CAInitializeNetlink()
969 caglobals.ip.netlinkFd = OC_INVALID_SOCKET;
971 // create NETLINK fd for interface change notifications
972 struct sockaddr_nl sa = { AF_NETLINK, 0, 0,
973 RTMGRP_LINK | RTMGRP_IPV4_IFADDR | RTMGRP_IPV6_IFADDR };
975 caglobals.ip.netlinkFd = socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE);
976 if (caglobals.ip.netlinkFd == OC_INVALID_SOCKET)
978 OIC_LOG_V(ERROR, TAG, "netlink socket failed: %s", strerror(errno));
982 int r = bind(caglobals.ip.netlinkFd, (struct sockaddr *)&sa, sizeof (sa));
985 OIC_LOG_V(ERROR, TAG, "netlink bind failed: %s", strerror(errno));
986 close(caglobals.ip.netlinkFd);
987 caglobals.ip.netlinkFd = OC_INVALID_SOCKET;
990 #elif defined (__TIZENRT__) // pkmsgq
991 struct mq_attr lq_attr;
992 lq_attr.mq_maxmsg = 10;
993 lq_attr.mq_msgsize = 4;
994 lq_attr.mq_flags = 0;
995 g_nwevent_mqfd = mq_open("netlink_evtq", O_RDWR | O_NONBLOCK | O_CREAT, 0666, &lq_attr);
996 if (g_nwevent_mqfd == (mqd_t) - 1)
998 OIC_LOG_V(ERROR, TAG,"RECV mq_open failed\n");
1004 static void CAInitializeFastShutdownMechanism()
1006 caglobals.ip.selectTimeout = -1; // don't poll for shutdown
1008 #if defined(WSA_WAIT_EVENT_0)
1009 caglobals.ip.shutdownEvent = WSACreateEvent();
1010 if (WSA_INVALID_EVENT != caglobals.ip.shutdownEvent)
1014 #elif defined(HAVE_PIPE2)
1016 ret = pipe2(caglobals.ip.shutdownFds, O_CLOEXEC);
1020 ret = pipe(caglobals.ip.shutdownFds);
1023 ret = fcntl(caglobals.ip.shutdownFds[0], F_GETFD);
1026 ret = fcntl(caglobals.ip.shutdownFds[0], F_SETFD, ret|FD_CLOEXEC);
1030 ret = fcntl(caglobals.ip.shutdownFds[1], F_GETFD);
1034 ret = fcntl(caglobals.ip.shutdownFds[1], F_SETFD, ret|FD_CLOEXEC);
1038 close(caglobals.ip.shutdownFds[1]);
1039 close(caglobals.ip.shutdownFds[0]);
1040 caglobals.ip.shutdownFds[0] = -1;
1041 caglobals.ip.shutdownFds[1] = -1;
1048 OIC_LOG_V(ERROR, TAG, "fast shutdown mechanism init failed: %s", CAIPS_GET_ERROR);
1049 caglobals.ip.selectTimeout = SELECT_TIMEOUT; //poll needed for shutdown
1053 CAResult_t CAIPStartServer(const ca_thread_pool_t threadPool)
1055 CAResult_t res = CA_STATUS_OK;
1057 if (caglobals.ip.started)
1061 #if defined (_WIN32)
1062 WORD wVersionRequested = MAKEWORD(2, 2);
1063 WSADATA wsaData ={.wVersion = 0};
1064 int err = WSAStartup(wVersionRequested, &wsaData);
1067 OIC_LOG_V(ERROR, TAG, "WSAStartup failed: %i", err);
1068 return CA_STATUS_FAILED;
1070 OIC_LOG(DEBUG, TAG, "WSAStartup Succeeded");
1072 if (!IPv4MulticastAddress.s_addr)
1074 (void)inet_pton(AF_INET, IPv4_MULTICAST, &IPv4MulticastAddress);
1075 (void)inet_pton(AF_INET6, IPv6_MULTICAST_INT, &IPv6MulticastAddressInt);
1076 (void)inet_pton(AF_INET6, IPv6_MULTICAST_LNK, &IPv6MulticastAddressLnk);
1077 (void)inet_pton(AF_INET6, IPv6_MULTICAST_RLM, &IPv6MulticastAddressRlm);
1078 (void)inet_pton(AF_INET6, IPv6_MULTICAST_ADM, &IPv6MulticastAddressAdm);
1079 (void)inet_pton(AF_INET6, IPv6_MULTICAST_SIT, &IPv6MulticastAddressSit);
1080 (void)inet_pton(AF_INET6, IPv6_MULTICAST_ORG, &IPv6MulticastAddressOrg);
1081 (void)inet_pton(AF_INET6, IPv6_MULTICAST_GLB, &IPv6MulticastAddressGlb);
1084 if (!caglobals.ip.ipv6enabled && !caglobals.ip.ipv4enabled)
1086 caglobals.ip.ipv4enabled = true; // only needed to run CA tests
1090 bool hasWifiConnection = isWifiConnectedDuringInit();
1091 if (hasWifiConnection)
1093 CreateMulticastSocket();
1097 OIC_LOG(INFO, TAG, "No WiFi connection. So UDP sockets are not created.");
1100 CreateMulticastSocket();
1103 OIC_LOG_V(INFO, TAG,
1104 "socket summary: u6=%d, u6s=%d, u4=%d, u4s=%d, m6=%d, m6s=%d, m4=%d, m4s=%d",
1105 caglobals.ip.u6.fd, caglobals.ip.u6s.fd, caglobals.ip.u4.fd, caglobals.ip.u4s.fd,
1106 caglobals.ip.m6.fd, caglobals.ip.m6s.fd, caglobals.ip.m4.fd, caglobals.ip.m4s.fd);
1108 OIC_LOG_V(INFO, TAG,
1109 "port summary: u6 port=%d, u6s port=%d, u4 port=%d, u4s port=%d, m6 port=%d,"
1110 "m6s port=%d, m4 port=%d, m4s port=%d",
1111 caglobals.ip.u6.port, caglobals.ip.u6s.port, caglobals.ip.u4.port,
1112 caglobals.ip.u4s.port, caglobals.ip.m6.port, caglobals.ip.m6s.port,
1113 caglobals.ip.m4.port, caglobals.ip.m4s.port);
1115 #if defined (SIO_GET_EXTENSION_FUNCTION_POINTER)
1116 caglobals.ip.wsaRecvMsg = NULL;
1117 GUID GuidWSARecvMsg = WSAID_WSARECVMSG;
1119 err = WSAIoctl(caglobals.ip.u4.fd, SIO_GET_EXTENSION_FUNCTION_POINTER, &GuidWSARecvMsg, sizeof(GuidWSARecvMsg), &(caglobals.ip.wsaRecvMsg), sizeof(caglobals.ip.wsaRecvMsg), &copied, 0, 0);
1122 OIC_LOG_V(ERROR, TAG, "WSAIoctl failed %i", WSAGetLastError());
1123 return CA_STATUS_FAILED;
1126 // set up appropriate FD mechanism for fast shutdown
1127 CAInitializeFastShutdownMechanism();
1129 // create source of network interface change notifications
1130 CAInitializeNetlink();
1132 caglobals.ip.selectTimeout = CAGetPollingInterval(caglobals.ip.selectTimeout);
1135 if (hasWifiConnection)
1137 res = CAIPStartListenServer();
1141 OIC_LOG(INFO, TAG, "No WiFi connection. So IP Listen/Multicast server is not started.");
1144 res = CAIPStartListenServer();
1147 if (CA_STATUS_OK != res)
1149 OIC_LOG_V(ERROR, TAG, "Failed to start listening server![%d]", res);
1153 caglobals.ip.terminate = false;
1155 res = ca_thread_pool_add_task(threadPool, CAReceiveHandler, NULL, NULL);
1157 res = ca_thread_pool_add_task(threadPool, CAReceiveHandler, NULL, NULL, "IoT_ReceiveHandler",
1158 CONFIG_IOTIVITY_RECEIVEHANDLER_PTHREAD_STACKSIZE);
1160 if (CA_STATUS_OK != res)
1162 OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
1166 OIC_LOG(INFO, TAG, "CAReceiveHandler thread started successfully.");
1168 caglobals.ip.started = true;
1169 return CA_STATUS_OK;
1172 void CAIPStopServer()
1174 caglobals.ip.started = false;
1175 caglobals.ip.terminate = true;
1177 CADeInitializeIPGlobals();
1179 #if !defined(WSA_WAIT_EVENT_0)
1181 if (caglobals.ip.shutdownFds[1] != -1)
1183 close(caglobals.ip.shutdownFds[1]);
1184 caglobals.ip.shutdownFds[1] = -1;
1185 // receive thread will stop immediately
1189 // receive thread will stop in SELECT_TIMEOUT seconds.
1193 // receive thread will stop immediately.
1194 if (!WSASetEvent(caglobals.ip.shutdownEvent))
1196 OIC_LOG_V(DEBUG, TAG, "set shutdown event failed: %#08X", GetLastError());
1200 OIC_LOG(INFO, TAG, "Adapter terminated successfully");
1203 static void applyMulticastToInterface4(uint32_t ifindex)
1205 if (!caglobals.ip.ipv4enabled)
1210 #if defined(USE_IP_MREQN)
1211 struct ip_mreqn mreq = { .imr_multiaddr = IPv4MulticastAddress,
1212 .imr_address.s_addr = htonl(INADDR_ANY),
1213 .imr_ifindex = ifindex };
1215 struct ip_mreq mreq = { .imr_multiaddr.s_addr = IPv4MulticastAddress.s_addr,
1216 .imr_interface.s_addr = htonl(ifindex) };
1219 int ret = setsockopt(caglobals.ip.m4.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, OPTVAL_T(&mreq), sizeof (mreq));
1220 if (OC_SOCKET_ERROR == ret)
1222 #if !defined(WSAEINVAL)
1223 if (EADDRINUSE != errno)
1225 if (WSAEINVAL != WSAGetLastError()) // Joining multicast group more than once (IPv4 Flavor)
1228 OIC_LOG_V(ERROR, TAG, " IPv4 IP_ADD_MEMBERSHIP failed: %s", CAIPS_GET_ERROR);
1231 ret = setsockopt(caglobals.ip.m4s.fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, OPTVAL_T(&mreq), sizeof (mreq));
1232 if (OC_SOCKET_ERROR == ret)
1234 #if !defined(WSAEINVAL)
1235 if (EADDRINUSE != errno)
1237 if (WSAEINVAL != WSAGetLastError()) // Joining multicast group more than once (IPv4 Flavor)
1240 OIC_LOG_V(ERROR, TAG, "SECURE IPv4 IP_ADD_MEMBERSHIP failed: %s", CAIPS_GET_ERROR);
1245 static void applyMulticast6(int fd, struct in6_addr *addr, uint32_t ifindex)
1248 struct ipv6_mreq mreq = {.ipv6mr_multiaddr = {{{0}}},
1249 .ipv6mr_interface = ifindex };
1251 // VS2013 has problems with struct copies inside struct initializers, so copy separately.
1252 mreq.ipv6mr_multiaddr = *addr;
1254 int ret = setsockopt(fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, OPTVAL_T(&mreq), sizeof (mreq));
1255 if (OC_SOCKET_ERROR == ret)
1257 #if !defined(_WIN32)
1258 if (EADDRINUSE != errno)
1260 if (WSAEINVAL != WSAGetLastError()) // Joining multicast group more than once (IPv6 Flavor)
1263 OIC_LOG_V(ERROR, TAG, "IPv6 IPV6_JOIN_GROUP failed: %s", CAIPS_GET_ERROR);
1269 static void applyMulticastToInterface6(uint32_t ifindex)
1271 if (!caglobals.ip.ipv6enabled)
1275 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressInt, ifindex);
1276 applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressLnk, ifindex);
1277 applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressRlm, ifindex);
1278 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressAdm, ifindex);
1279 applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressSit, ifindex);
1280 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressOrg, ifindex);
1281 //applyMulticast6(caglobals.ip.m6.fd, &IPv6MulticastAddressGlb, ifindex);
1283 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressInt, ifindex);
1284 applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressLnk, ifindex);
1285 applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressRlm, ifindex);
1286 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressAdm, ifindex);
1287 applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressSit, ifindex);
1288 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressOrg, ifindex);
1289 //applyMulticast6(caglobals.ip.m6s.fd, &IPv6MulticastAddressGlb, ifindex);
1292 CAResult_t CAIPStartListenServer()
1294 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
1297 OIC_LOG_V(ERROR, TAG, "CAIPGetInterfaceInformation() failed: %s", strerror(errno));
1298 return CA_STATUS_FAILED;
1301 uint32_t len = u_arraylist_length(iflist);
1302 OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
1304 for (uint32_t i = 0; i < len; i++)
1306 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
1312 if ((ifitem->flags & IFF_UP_RUNNING_FLAGS) != IFF_UP_RUNNING_FLAGS)
1316 if (ifitem->family == AF_INET)
1318 OIC_LOG_V(DEBUG, TAG, "Adding IPv4 interface(%d) to multicast group", ifitem->index);
1319 applyMulticastToInterface4(ifitem->index);
1321 if (ifitem->family == AF_INET6)
1323 OIC_LOG_V(DEBUG, TAG, "Adding IPv6 interface(%d) to multicast group", ifitem->index);
1324 applyMulticastToInterface6(ifitem->index);
1328 u_arraylist_destroy(iflist);
1329 return CA_STATUS_OK;
1332 CAResult_t CAIPStopListenServer()
1334 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
1337 OIC_LOG_V(ERROR, TAG, "Get interface info failed: %s", strerror(errno));
1338 return CA_STATUS_FAILED;
1341 uint32_t len = u_arraylist_length(iflist);
1342 OIC_LOG_V(DEBUG, TAG, "IP network interfaces found: %d", len);
1344 for (uint32_t i = 0; i < len; i++)
1346 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
1352 if ((ifitem->flags & IFF_UP_RUNNING_FLAGS) != IFF_UP_RUNNING_FLAGS)
1356 if (ifitem->family == AF_INET)
1360 OIC_LOG_V(DEBUG, TAG, "IPv4 network interface: %s cloed", ifitem->name);
1362 if (ifitem->family == AF_INET6)
1366 OIC_LOG_V(DEBUG, TAG, "IPv6 network interface: %s", ifitem->name);
1369 u_arraylist_destroy(iflist);
1370 return CA_STATUS_OK;
1373 void CAProcessNewInterface(CAInterface_t *ifitem)
1377 OIC_LOG(DEBUG, TAG, "ifitem is null");
1381 if (ifitem->family == AF_INET6)
1383 OIC_LOG_V(DEBUG, TAG, "Adding a new IPv6 interface(%d) to multicast group", ifitem->index);
1384 applyMulticastToInterface6(ifitem->index);
1386 if (ifitem->family == AF_INET)
1388 OIC_LOG_V(DEBUG, TAG, "Adding a new IPv4 interface(%d) to multicast group", ifitem->index);
1389 applyMulticastToInterface4(ifitem->index);
1393 void CAIPSetPacketReceiveCallback(CAIPPacketReceivedCallback callback)
1395 g_packetReceivedCallback = callback;
1398 static void sendData(int fd, const CAEndpoint_t *endpoint,
1399 const void *data, uint32_t dlen,
1400 const char *cast, const char *fam)
1402 OIC_LOG(DEBUG, TAG, "IN");
1406 OIC_LOG(DEBUG, TAG, "endpoint is null");
1407 if (g_ipErrorHandler)
1409 g_ipErrorHandler(endpoint, data, dlen, CA_STATUS_INVALID_PARAM);
1414 (void)cast; // eliminates release warning
1417 struct sockaddr_storage sock = { .ss_family = 0 };
1418 CAConvertNameToAddr(endpoint->addr, endpoint->port, &sock);
1420 socklen_t socklen = 0;
1421 if (sock.ss_family == AF_INET6)
1423 /** @todo figure out correct usage for ifindex, and sin6_scope_id */
1424 socklen = sizeof(struct sockaddr_in6);
1428 socklen = sizeof(struct sockaddr_in);
1432 const char *secure = (endpoint->flags & CA_SECURE) ? "secure " : "";
1434 #if !defined(_WIN32)
1435 ssize_t len = sendto(fd, data, dlen, 0, (struct sockaddr *)&sock, socklen);
1436 if (OC_SOCKET_ERROR == len)
1438 // If logging is not defined/enabled.
1439 if (g_ipErrorHandler)
1441 g_ipErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
1443 OIC_LOG_V(ERROR, TAG, "%s%s %s sendTo failed: %s", secure, cast, fam, strerror(errno));
1444 CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
1445 len, false, strerror(errno));
1449 OIC_LOG_V(INFO, TAG, "%s%s %s sendTo is successful: %zd bytes", secure, cast, fam, len);
1450 CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
1458 len = sendto(fd, ((char*)data) + sent, dlen - sent, 0, (struct sockaddr *)&sock, socklen);
1459 if (OC_SOCKET_ERROR == len)
1461 err = WSAGetLastError();
1462 if ((WSAEWOULDBLOCK != err) && (WSAENOBUFS != err))
1464 // If logging is not defined/enabled.
1465 if (g_ipErrorHandler)
1467 g_ipErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
1470 OIC_LOG_V(ERROR, TAG, "%s%s %s sendTo failed: %i", secure, cast, fam, err);
1478 OIC_LOG_V(INFO, TAG, "%s%s %s sendTo (Partial Send) is successful: "
1479 "currently sent: %ld bytes, "
1480 "total sent: %ld bytes, "
1481 "remaining: %ld bytes",
1482 secure, cast, fam, len, sent, dlen-sent);
1486 OIC_LOG_V(INFO, TAG, "%s%s %s sendTo is successful: %ld bytes",
1487 secure, cast, fam, len);
1490 } while ((OC_SOCKET_ERROR == len) && ((WSAEWOULDBLOCK == err) || (WSAENOBUFS == err)) || (sent < dlen));
1494 static void sendMulticastData6(const u_arraylist_t *iflist,
1495 CAEndpoint_t *endpoint,
1496 const void *data, uint32_t datalen)
1500 OIC_LOG(DEBUG, TAG, "endpoint is null");
1504 int scope = endpoint->flags & CA_SCOPE_MASK;
1505 char *ipv6mcname = ipv6mcnames[scope];
1508 OIC_LOG_V(INFO, TAG, "IPv6 multicast scope invalid: %d", scope);
1511 OICStrcpy(endpoint->addr, sizeof(endpoint->addr), ipv6mcname);
1512 int fd = caglobals.ip.u6.fd;
1514 uint32_t len = u_arraylist_length(iflist);
1515 for (uint32_t i = 0; i < len; i++)
1517 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
1522 if ((ifitem->flags & IFF_UP_RUNNING_FLAGS) != IFF_UP_RUNNING_FLAGS)
1526 if (ifitem->family != AF_INET6)
1531 bool isMobile = false;
1532 for (uint32_t j = 0; j < MOBILE_INTERFACES; j++)
1534 if (strstr(ifitem->name, mobileinferfaces[j]))
1545 int index = ifitem->index;
1546 if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_IF, OPTVAL_T(&index), sizeof (index)))
1548 OIC_LOG_V(ERROR, TAG, "setsockopt6 failed: %s", CAIPS_GET_ERROR);
1553 // Set multicast packet TTL; default TTL is 1
1554 if (setsockopt(fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &multicastTTL, sizeof(multicastTTL)))
1556 OIC_LOG_V(ERROR, TAG, "IPV6_MULTICAST_HOPS failed: %s", CAIPS_GET_ERROR);
1559 sendData(fd, endpoint, data, datalen, "multicast", "ipv6");
1563 static void sendMulticastData4(const u_arraylist_t *iflist,
1564 CAEndpoint_t *endpoint,
1565 const void *data, uint32_t datalen)
1567 VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
1569 #if defined(USE_IP_MREQN)
1570 struct ip_mreqn mreq = { .imr_multiaddr = IPv4MulticastAddress,
1571 .imr_address.s_addr = htonl(INADDR_ANY),
1574 struct ip_mreq mreq = { .imr_multiaddr.s_addr = IPv4MulticastAddress.s_addr,
1575 .imr_interface = {0}};
1578 OICStrcpy(endpoint->addr, sizeof(endpoint->addr), IPv4_MULTICAST);
1579 int fd = caglobals.ip.u4.fd;
1581 uint32_t len = u_arraylist_length(iflist);
1582 for (uint32_t i = 0; i < len; i++)
1584 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
1589 if ((ifitem->flags & IFF_UP_RUNNING_FLAGS) != IFF_UP_RUNNING_FLAGS)
1593 if (ifitem->family != AF_INET)
1598 bool isMobile = false;
1599 for (uint32_t j = 0; j < MOBILE_INTERFACES; j++)
1601 if (strstr(ifitem->name, mobileinferfaces[j]))
1612 #if defined(USE_IP_MREQN)
1613 mreq.imr_ifindex = ifitem->index;
1615 mreq.imr_interface.s_addr = htonl(ifitem->index);
1617 if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_IF, OPTVAL_T(&mreq), sizeof (mreq)))
1619 OIC_LOG_V(ERROR, TAG, "send IP_MULTICAST_IF failed: %s (using defualt)",
1623 // Set multicast packet TTL; default TTL is 1
1624 if (setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, &multicastTTL, sizeof(multicastTTL)))
1626 OIC_LOG_V(ERROR, TAG, "IP_MULTICAST_TTL failed: %s", CAIPS_GET_ERROR);
1628 sendData(fd, endpoint, data, datalen, "multicast", "ipv4");
1632 void CAIPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
1635 VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
1636 VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
1638 bool isSecure = (endpoint->flags & CA_SECURE) != 0;
1642 endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
1644 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
1647 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
1651 if ((endpoint->flags & CA_IPV6) && caglobals.ip.ipv6enabled)
1653 sendMulticastData6(iflist, endpoint, data, datalen);
1655 if ((endpoint->flags & CA_IPV4) && caglobals.ip.ipv4enabled)
1657 sendMulticastData4(iflist, endpoint, data, datalen);
1660 u_arraylist_destroy(iflist);
1664 if (!endpoint->port) // unicast discovery
1666 endpoint->port = isSecure ? CA_SECURE_COAP : CA_COAP;
1670 if (caglobals.ip.ipv6enabled && (endpoint->flags & CA_IPV6))
1672 fd = isSecure ? caglobals.ip.u6s.fd : caglobals.ip.u6.fd;
1673 #ifndef __WITH_DTLS__
1674 fd = caglobals.ip.u6.fd;
1676 sendData(fd, endpoint, data, datalen, "unicast", "ipv6");
1678 if (caglobals.ip.ipv4enabled && (endpoint->flags & CA_IPV4))
1680 fd = isSecure ? caglobals.ip.u4s.fd : caglobals.ip.u4.fd;
1681 #ifndef __WITH_DTLS__
1682 fd = caglobals.ip.u4.fd;
1684 sendData(fd, endpoint, data, datalen, "unicast", "ipv4");
1689 CAResult_t CAGetIPInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
1691 VERIFY_NON_NULL(info, TAG, "info is NULL");
1692 VERIFY_NON_NULL(size, TAG, "size is NULL");
1694 u_arraylist_t *iflist = CAIPGetInterfaceInformation(0);
1697 OIC_LOG_V(ERROR, TAG, "get interface info failed: %s", strerror(errno));
1698 return CA_STATUS_FAILED;
1701 uint32_t len = u_arraylist_length(iflist);
1702 uint32_t length = len;
1704 #ifdef __WITH_DTLS__
1705 //If DTLS is supported, each interface can support secure port as well
1709 CAEndpoint_t *eps = (CAEndpoint_t *)OICCalloc(length, sizeof (CAEndpoint_t));
1712 OIC_LOG(ERROR, TAG, "Malloc Failed");
1713 u_arraylist_destroy(iflist);
1714 return CA_MEMORY_ALLOC_FAILED;
1717 for (uint32_t i = 0, j = 0; i < len; i++)
1719 CAInterface_t *ifitem = (CAInterface_t *)u_arraylist_get(iflist, i);
1725 eps[j].adapter = CA_ADAPTER_IP;
1728 if (ifitem->family == AF_INET6)
1730 eps[j].flags = CA_IPV6;
1731 eps[j].port = caglobals.ip.u6.port;
1735 eps[j].flags = CA_IPV4;
1736 eps[j].port = caglobals.ip.u4.port;
1738 OICStrcpy(eps[j].addr, sizeof(eps[j].addr), ifitem->addr);
1740 #ifdef __WITH_DTLS__
1743 eps[j].adapter = CA_ADAPTER_IP;
1746 if (ifitem->family == AF_INET6)
1748 eps[j].flags = CA_IPV6 | CA_SECURE;
1749 eps[j].port = caglobals.ip.u6s.port;
1753 eps[j].flags = CA_IPV4 | CA_SECURE;
1754 eps[j].port = caglobals.ip.u4s.port;
1756 OICStrcpy(eps[j].addr, sizeof(eps[j].addr), ifitem->addr);
1764 u_arraylist_destroy(iflist);
1766 return CA_STATUS_OK;
1769 void CAIPSetErrorHandler(CAIPErrorHandleCallback errorHandleCallback)
1771 g_ipErrorHandler = errorHandleCallback;
1774 CAResult_t CAIPSetMulticastTTL(size_t ttl)
1777 return CA_STATUS_OK;
1780 CAResult_t CAIPGetMulticastTTL(size_t *ttl)
1782 VERIFY_NON_NULL(ttl, TAG, "ttl is NULL");
1784 *ttl = multicastTTL;
1785 return CA_STATUS_OK;