1 /* ****************************************************************
3 * Copyright 2015 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 <sys/types.h>
22 #include <sys/socket.h>
23 #include <sys/select.h>
24 #include <sys/ioctl.h>
26 #include <tinyara/config.h>
34 #include <arpa/inet.h>
35 #include <netinet/in.h>
40 #include <sys/socket.h>
41 #include <netinet/in.h>
45 #include "catcpinterface.h"
46 #include "caipnwmonitor.h"
48 #include "caadapterutils.h"
50 #include "oic_malloc.h"
53 #include "ca_adapter_net_ssl.h"
57 * Logging tag for module name.
59 //#define TAG "OIC_CA_TCP_SERVER"
60 #define TAG TCP_SERVER_TAG
63 * Maximum CoAP over TCP header length
64 * to know the total data length.
66 #define COAP_MAX_HEADER_SIZE 6
71 #define TLS_HEADER_SIZE 5
74 * Max Connection Counts.
76 #define MAX_CONNECTION_COUNTS 500
78 #define COAP_TCP_MAX_BUFFER_CHUNK_SIZE 65530 //64kb - 6 (coap+tcp max header size)
80 #define MILLISECONDS_PER_SECOND (1000)
85 static ca_thread_pool_t g_threadPool = NULL;
88 * Mutex to synchronize device object list.
90 static oc_mutex g_mutexObjectList = NULL;
93 * Conditional mutex to synchronize.
95 static oc_cond g_condObjectList = NULL;
98 * Mutex to synchronize send.
100 static oc_mutex g_mutexSend = NULL;
103 * Conditional mutex to synchronize send.
105 static oc_cond g_condSend = NULL;
108 * Maintains the callback to be notified when data received from remote device.
110 static CATCPPacketReceivedCallback g_packetReceivedCallback = NULL;
113 * Error callback to update error in TCP.
115 static CATCPErrorHandleCallback g_tcpErrorHandler = NULL;
118 * Connected Callback to pass the connection information to RI.
120 static CATCPConnectionHandleCallback g_connectionCallback = NULL;
122 static CASocketFd_t CACreateAcceptSocket(int family, CASocket_t *sock);
123 static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock);
124 static void CAFindReadyMessage();
125 static void CASelectReturned(fd_set *readFds);
126 static void CAReceiveMessage(int fd);
127 static void CAReceiveHandler(void *data);
128 static CAResult_t CATCPCreateSocket(int family, CATCPSessionInfo_t *svritem);
129 static void CATCPInitializeSocket();
130 static CATCPSessionInfo_t *CAGetSessionInfoFromFDAsOwner(int fd, size_t *index);
132 #if defined(__TIZEN__)
133 static char g_cloudproxyUri[CA_MAX_URI_LENGTH];
135 CAResult_t CASetCloudAddressForProxy(const char *uri)
138 memset(g_cloudproxyUri, '\0', sizeof (g_cloudproxyUri));
140 OICStrcpy(g_cloudproxyUri, sizeof (g_cloudproxyUri), uri);
144 const char *CAGetCloudAddressForProxy()
146 if (g_cloudproxyUri[0] == '\0')
148 return g_cloudproxyUri;
152 #define CHECKFD(FD) \
153 if (FD > caglobals.tcp.maxfd) \
154 caglobals.tcp.maxfd = FD;
156 #define CLOSE_SOCKET(TYPE) \
157 if (caglobals.tcp.TYPE.fd != OC_INVALID_SOCKET) \
159 close(caglobals.tcp.TYPE.fd); \
160 caglobals.tcp.TYPE.fd = OC_INVALID_SOCKET; \
163 #define CA_FD_SET(TYPE, FDS) \
164 if (caglobals.tcp.TYPE.fd != OC_INVALID_SOCKET) \
166 FD_SET(caglobals.tcp.TYPE.fd, FDS); \
169 void CATCPDestroyMutex()
171 if (g_mutexObjectList)
173 oc_mutex_free(g_mutexObjectList);
174 g_mutexObjectList = NULL;
178 CAResult_t CATCPCreateMutex()
180 if (!g_mutexObjectList)
182 g_mutexObjectList = oc_mutex_new();
183 if (!g_mutexObjectList)
185 OIC_LOG(ERROR, TAG, "Failed to create mutex!");
186 return CA_STATUS_FAILED;
193 void CATCPDestroyCond()
195 if (g_condObjectList)
197 oc_cond_free(g_condObjectList);
198 g_condObjectList = NULL;
202 CAResult_t CATCPCreateCond()
204 if (!g_condObjectList)
206 g_condObjectList = oc_cond_new();
207 if (!g_condObjectList)
209 OIC_LOG(ERROR, TAG, "Failed to create cond!");
210 return CA_STATUS_FAILED;
216 void CATCPDestroySendMutex()
220 oc_mutex_free(g_mutexSend);
225 CAResult_t CATCPCreateSendMutex()
229 g_mutexSend = oc_mutex_new();
232 OIC_LOG(ERROR, TAG, "Failed to create send mutex!");
233 return CA_STATUS_FAILED;
240 void CATCPDestroySendCond()
244 oc_cond_free(g_condSend);
249 CAResult_t CATCPCreateSendCond()
253 g_condSend = oc_cond_new();
256 OIC_LOG(ERROR, TAG, "Failed to create send cond!");
257 return CA_STATUS_FAILED;
263 static void CAReceiveHandler(void *data)
266 OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
270 oc_mutex_lock(g_mutexObjectList);
271 if (caglobals.tcp.terminate)
273 oc_mutex_unlock(g_mutexObjectList);
276 oc_mutex_unlock(g_mutexObjectList);
277 CAFindReadyMessage();
280 oc_mutex_lock(g_mutexObjectList);
281 oc_cond_signal(g_condObjectList);
282 oc_mutex_unlock(g_mutexObjectList);
284 OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
287 static void CAFindReadyMessage()
290 struct timeval timeout = { .tv_sec = caglobals.tcp.selectTimeout };
293 CA_FD_SET(ipv4, &readFds);
294 CA_FD_SET(ipv4s, &readFds);
295 CA_FD_SET(ipv6, &readFds);
296 CA_FD_SET(ipv6s, &readFds);
298 if (OC_INVALID_SOCKET != caglobals.tcp.shutdownFds[0])
300 FD_SET(caglobals.tcp.shutdownFds[0], &readFds);
303 if (OC_INVALID_SOCKET != caglobals.tcp.connectionFds[0])
305 FD_SET(caglobals.tcp.connectionFds[0], &readFds);
308 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
309 for (size_t i = 0; i < length; i++)
311 CATCPSessionInfo_t *svritem =
312 (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
313 if (svritem && 0 <= svritem->fd && CONNECTED == svritem->state)
315 FD_SET(svritem->fd, &readFds);
319 int ret = select(caglobals.tcp.maxfd + 1, &readFds, NULL, NULL, &timeout);
321 oc_mutex_lock(g_mutexObjectList);
322 if (caglobals.tcp.terminate)
324 oc_mutex_unlock(g_mutexObjectList);
325 OIC_LOG_V(INFO, TAG, "Packet receiver Stop request received.");
328 oc_mutex_unlock(g_mutexObjectList);
333 OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
338 CASelectReturned(&readFds);
341 static void CASelectReturned(fd_set *readFds)
343 VERIFY_NON_NULL_VOID(readFds, TAG, "readFds is NULL");
345 if (caglobals.tcp.ipv4.fd != -1 && FD_ISSET(caglobals.tcp.ipv4.fd, readFds))
347 CAAcceptConnection(CA_IPV4, &caglobals.tcp.ipv4);
350 else if (caglobals.tcp.ipv4s.fd != -1 && FD_ISSET(caglobals.tcp.ipv4s.fd, readFds))
352 CAAcceptConnection(CA_IPV4 | CA_SECURE, &caglobals.tcp.ipv4s);
355 else if (caglobals.tcp.ipv6.fd != -1 && FD_ISSET(caglobals.tcp.ipv6.fd, readFds))
357 CAAcceptConnection(CA_IPV6, &caglobals.tcp.ipv6);
360 else if (caglobals.tcp.ipv6s.fd != -1 && FD_ISSET(caglobals.tcp.ipv6s.fd, readFds))
362 CAAcceptConnection(CA_IPV6 | CA_SECURE, &caglobals.tcp.ipv6s);
365 else if (-1 != caglobals.tcp.connectionFds[0] &&
366 FD_ISSET(caglobals.tcp.connectionFds[0], readFds))
368 // new connection was created from remote device.
369 // exit the function to update read file descriptor.
370 char buf[MAX_ADDR_STR_SIZE_CA] = {0};
371 ssize_t len = read(caglobals.tcp.connectionFds[0], buf, sizeof (buf));
376 OIC_LOG_V(DEBUG, TAG, "Received new connection event with [%s]", buf);
381 int *readFDList = NULL;
382 size_t readFDListSize = 0;
384 oc_mutex_lock(g_mutexObjectList);
385 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
387 readFDList = (int*) OICCalloc(length, sizeof(int));
388 if (NULL == readFDList)
390 OIC_LOG_V(ERROR, TAG, "Failed to allocate memory!");
391 oc_mutex_unlock(g_mutexObjectList);
395 for (size_t i = 0; i < length; i++)
397 CATCPSessionInfo_t *svritem =
398 (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
399 if (svritem && svritem->fd >= 0)
401 if (FD_ISSET(svritem->fd, readFds))
403 readFDList[readFDListSize++] = svritem->fd;
407 oc_mutex_unlock(g_mutexObjectList);
409 // Read incomming messages from fds
410 for (size_t i = 0; i < readFDListSize; i++)
412 CAReceiveMessage(readFDList[i]);
419 static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock)
421 OIC_LOG_V(INFO, TAG, "In %s", __func__);
422 VERIFY_NON_NULL_VOID(sock, TAG, "sock is NULL");
424 if (MAX_CONNECTION_COUNTS == u_arraylist_length(caglobals.tcp.svrlist))
426 OIC_LOG_V(INFO, TAG, "Exceeding the max connection counts limit, close listening port");
428 sock->fd = OC_INVALID_SOCKET;
432 struct sockaddr_storage clientaddr;
433 socklen_t clientlen = sizeof (struct sockaddr_in);
436 clientlen = sizeof(struct sockaddr_in6);
439 CASocketFd_t sockfd = accept(sock->fd, (struct sockaddr *)&clientaddr, &clientlen);
440 if (OC_INVALID_SOCKET != sockfd)
442 CATCPSessionInfo_t *svritem =
443 (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
446 OIC_LOG(ERROR, TAG, "Out of memory");
451 svritem->fd = sockfd;
452 svritem->sep.endpoint.flags = flag;
453 svritem->sep.endpoint.adapter = CA_ADAPTER_TCP;
454 svritem->state = CONNECTED;
455 svritem->isClient = false;
456 CAConvertAddrToName((struct sockaddr_storage *)&clientaddr, clientlen,
457 svritem->sep.endpoint.addr, &svritem->sep.endpoint.port);
459 // Allocate message buffer
460 svritem->tlsdata = (unsigned char*) OICCalloc(TLS_DATA_MAX_SIZE, sizeof(unsigned char));
461 if (!svritem->tlsdata)
463 OIC_LOG(ERROR, TAG, "Out of memory");
469 oc_mutex_lock(g_mutexObjectList);
470 bool result = u_arraylist_add(caglobals.tcp.svrlist, svritem);
473 OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
475 OICFree(svritem->tlsdata);
477 oc_mutex_unlock(g_mutexObjectList);
480 oc_mutex_unlock(g_mutexObjectList);
484 // pass the connection information to CA Common Layer.
485 if (g_connectionCallback)
487 g_connectionCallback(&(svritem->sep.endpoint), true, svritem->isClient);
490 OIC_LOG_V(INFO, TAG, "Out %s", __func__);
494 * Clean socket state data
496 * @param[in/out] item - socket state data
498 void CACleanData(CATCPSessionInfo_t *svritem)
502 OICFree(svritem->data);
503 svritem->data = NULL;
508 svritem->totalLen = 0;
510 svritem->protocol = UNKNOWN;
515 * Construct CoAP header and payload from buffer
517 * @param[in] svritem - used socket, buffer, current received message length and protocol
518 * @param[in/out] data - data buffer, this value is updated as data is copied to svritem
519 * @param[in/out] dataLength - length of data, this value decreased as data is copied to svritem
520 * @return - CA_STATUS_OK or appropriate error code
522 CAResult_t CAConstructCoAP(CATCPSessionInfo_t *svritem, unsigned char **data,
525 OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
527 if (NULL == svritem || NULL == data || NULL == dataLength)
529 OIC_LOG(ERROR, TAG, "Invalid input parameter(NULL)");
530 return CA_STATUS_INVALID_PARAM;
533 unsigned char *inBuffer = *data;
534 size_t inLen = *dataLength;
535 OIC_LOG_V(DEBUG, TAG, "before-datalength : %zd", *dataLength);
537 if (NULL == svritem->data && inLen > 0)
539 // allocate memory for message header (CoAP header size because it is bigger)
540 svritem->data = (unsigned char *) OICCalloc(1, COAP_MAX_HEADER_SIZE);
541 if (NULL == svritem->data)
543 OIC_LOG(ERROR, TAG, "OICCalloc - out of memory");
544 return CA_MEMORY_ALLOC_FAILED;
547 // copy 1 byte to parse coap header length
548 memcpy(svritem->data, inBuffer, 1);
550 svritem->bufLen = COAP_MAX_HEADER_SIZE;
555 //if not enough data received - read them on next CAFillHeader() call
561 //if enough data received - parse header
562 svritem->protocol = COAP;
564 //seems CoAP data received. read full coap header.
565 coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(svritem->data[0] >> 4);
566 size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
570 if (svritem->len < headerLen)
572 copyLen = headerLen - svritem->len;
578 //read required bytes to have full CoAP header
579 memcpy(svritem->data + svritem->len, inBuffer, copyLen);
580 svritem->len += copyLen;
584 //if not enough data received - read them on next CAFillHeader() call
585 if (svritem->len < headerLen)
589 OIC_LOG(DEBUG, TAG, "CoAP header received partially. Wait for rest header data");
593 //calculate CoAP message length
594 svritem->totalLen = CAGetTotalLengthFromHeader(svritem->data);
600 // Calculate length of data to be copied.
601 copyLen = svritem->totalLen - svritem->len;
607 // Is buffer not big enough for remaining data ?
608 if (svritem->len + copyLen > svritem->bufLen)
610 // Resize buffer to accommodate enough space
611 size_t extLen = svritem->totalLen - svritem->bufLen;
612 if (extLen > COAP_TCP_MAX_BUFFER_CHUNK_SIZE)
614 extLen = COAP_TCP_MAX_BUFFER_CHUNK_SIZE;
617 // Allocate required memory
618 unsigned char *buffer = OICRealloc(svritem->data, svritem->bufLen + extLen);
621 OIC_LOG(ERROR, TAG, "OICRealloc - out of memory");
622 return CA_MEMORY_ALLOC_FAILED;
625 svritem->data = buffer;
626 svritem->bufLen += extLen;
629 // Read required bytes to have full CoAP payload
630 memcpy(svritem->data + svritem->len, inBuffer, copyLen);
631 svritem->len += copyLen;
639 OIC_LOG_V(DEBUG, TAG, "after-datalength : %zd", *dataLength);
640 OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
644 static void CAReceiveMessage(int fd)
646 CAResult_t res = CA_STATUS_OK;
648 oc_mutex_lock(g_mutexObjectList);
650 //get remote device information from file descriptor.
652 CATCPSessionInfo_t *svritem = CAGetSessionInfoFromFDAsOwner(fd, &index);
655 OIC_LOG(ERROR, TAG, "there is no connection information in list");
656 oc_mutex_unlock(g_mutexObjectList);
660 CASecureEndpoint_t peerEP = svritem->sep;
662 if (svritem->sep.endpoint.flags & CA_SECURE) // Secure connection
664 svritem->protocol = TLS;
668 size_t tlsLength = 0;
670 if (TLS_HEADER_SIZE > svritem->tlsLen)
672 nbRead = TLS_HEADER_SIZE - svritem->tlsLen;
676 //[3][4] bytes in tls header are tls payload length
677 tlsLength = TLS_HEADER_SIZE +
678 (size_t)((svritem->tlsdata[3] << 8) | svritem->tlsdata[4]);
679 OIC_LOG_V(DEBUG, TAG, "total tls length = %zd", tlsLength);
680 if (tlsLength > TLS_DATA_MAX_SIZE)
682 OIC_LOG_V(ERROR, TAG, "total tls length is too big (buffer size : %u)",
684 oc_mutex_unlock(g_mutexObjectList);
685 CATCPDisconnectSession(&peerEP.endpoint);
688 nbRead = tlsLength - svritem->tlsLen;
691 len = recv(fd, svritem->tlsdata + svritem->tlsLen, nbRead, 0);
694 OIC_LOG_V(ERROR, TAG, "recv failed %s", strerror(errno));
695 res = CA_RECEIVE_FAILED;
699 OIC_LOG(INFO, TAG, "Received disconnect from peer. Close connection");
700 svritem->state = DISCONNECTED;
701 res = CA_DESTINATION_DISCONNECTED;
705 svritem->tlsLen += len;
706 OIC_LOG_V(DEBUG, TAG, "nb_read : %zd bytes , recv() : %d bytes, svritem->tlsLen : %zd bytes",
707 nbRead, len, svritem->tlsLen);
708 if (tlsLength > 0 && tlsLength == svritem->tlsLen)
710 // When successfully read data - pass them to callback.
711 // Dont invoke callback locking mutex
712 unsigned char *mesBuf = svritem->tlsdata;
713 size_t mesBufLen = svritem->tlsLen;
714 svritem->tlsdata = NULL;
715 oc_mutex_unlock(g_mutexObjectList);
717 res = CAdecryptSsl(&peerEP, (uint8_t *)mesBuf, mesBufLen);
718 OIC_LOG_V(INFO, TAG, "%s: CAdecryptSsl returned %d", __func__, res);
720 // Check for the svritem and reset buffer
721 oc_mutex_lock(g_mutexObjectList);
722 svritem = CAGetSessionInfoFromFDAsOwner(fd, &index);
725 svritem->tlsdata = mesBuf;
730 // svritem does not exist, thus free the message buffer
731 OIC_LOG(ERROR, TAG, "svritem not found. Freeing message buffer!");
738 else // Non-Secure connection
740 svritem->protocol = COAP;
742 // svritem->tlsdata can also be used as receiving buffer in case of raw tcp
743 len = recv(fd, svritem->tlsdata, TLS_DATA_MAX_SIZE, 0);
746 OIC_LOG_V(ERROR, TAG, "recv failed %s", strerror(errno));
747 res = CA_RECEIVE_FAILED;
751 OIC_LOG(INFO, TAG, "Received disconnect from peer. Close connection");
752 res = CA_DESTINATION_DISCONNECTED;
756 //when successfully read data - pass them to callback.
757 OIC_LOG_V(DEBUG, TAG, "recv() : %d bytes", len);
758 if (g_packetReceivedCallback)
760 // Dont invoke callback locking mutex
761 unsigned char *mesBuf = svritem->tlsdata;
762 svritem->tlsdata = NULL;
763 oc_mutex_unlock(g_mutexObjectList);
765 res = g_packetReceivedCallback(&peerEP, mesBuf, len);
767 // Check for the svritem and reset buffer
768 oc_mutex_lock(g_mutexObjectList);
769 svritem = CAGetSessionInfoFromFDAsOwner(fd, &index);
772 svritem->tlsdata = mesBuf;
777 // svritem does not exist, thus free the message buffer
778 OIC_LOG(ERROR, TAG, "svritem not found. Freeing message buffer!");
785 oc_mutex_unlock(g_mutexObjectList);
787 if (res != CA_STATUS_OK)
789 CATCPDisconnectSession(&peerEP.endpoint);
793 static ssize_t CAWakeUpForReadFdsUpdate(const char *host)
795 if (caglobals.tcp.connectionFds[1] != -1)
800 len = write(caglobals.tcp.connectionFds[1], host, strlen(host));
801 } while ((len == -1) && (errno == EINTR));
803 if ((len == -1) && (errno != EINTR) && (errno != EPIPE))
805 OIC_LOG_V(DEBUG, TAG, "write failed: %s", strerror(errno));
812 static CAResult_t CATCPConvertNameToAddr(int family, const char *host, uint16_t port,
813 struct sockaddr_storage *sockaddr)
815 struct addrinfo *addrs = NULL;
816 struct addrinfo hints = { .ai_family = family,
817 .ai_protocol = IPPROTO_TCP,
818 .ai_socktype = SOCK_STREAM,
819 .ai_flags = AI_NUMERICHOST };
821 int r = getaddrinfo(host, NULL, &hints, &addrs);
826 OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: errno %s", strerror(errno));
830 OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: %s", gai_strerror(r));
833 return CA_STATUS_FAILED;
835 // assumption: in this case, getaddrinfo will only return one addrinfo
836 // or first is the one we want.
837 if (addrs[0].ai_family == AF_INET6)
839 memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in6));
840 ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons(port);
844 memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in));
845 ((struct sockaddr_in *)sockaddr)->sin_port = htons(port);
851 #if defined(__TIZEN__)
852 static int CAGetHTTPStatusCode(char * response) {
853 char *resp, *code_plus, *ptrSave;
856 resp = strdup(response);
857 strtok_r(resp, " ", &ptrSave); /* skip HTTP version */
858 code_plus = strtok_r(NULL, " ", &ptrSave);
860 ret = code_plus ? atoi(code_plus) : -1;
866 static CAResult_t CATCPCreateSocket(int family, CATCPSessionInfo_t *svritem)
868 VERIFY_NON_NULL(svritem, TAG, "svritem is NULL");
870 OIC_LOG_V(INFO, TAG, "try to connect with [%s:%u]",
871 svritem->sep.endpoint.addr, svritem->sep.endpoint.port);
873 // #1. create tcp socket.
874 int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
877 OIC_LOG_V(ERROR, TAG, "create socket failed: %s", strerror(errno));
878 return CA_SOCKET_OPERATION_FAILED;
882 // #2. convert address from string to binary.
883 struct sockaddr_storage sa = { .ss_family = family };
884 CAResult_t res = CATCPConvertNameToAddr(family, svritem->sep.endpoint.addr,
885 svritem->sep.endpoint.port, &sa);
886 if (CA_STATUS_OK != res)
888 OIC_LOG(ERROR, TAG, "convert name to sockaddr failed");
889 return CA_SOCKET_OPERATION_FAILED;
892 // #3. set socket length.
893 socklen_t socklen = 0;
894 if (sa.ss_family == AF_INET6)
896 struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sa;
897 if (!sock6->sin6_scope_id)
899 sock6->sin6_scope_id = svritem->sep.endpoint.ifindex;
901 socklen = sizeof(struct sockaddr_in6);
905 socklen = sizeof(struct sockaddr_in);
908 // #4. connect to remote server device.
909 if (connect(fd, (struct sockaddr *)&sa, socklen) < 0)
911 OIC_LOG_V(ERROR, TAG, "failed to connect socket, %s", strerror(errno));
912 CALogSendStateInfo(svritem->sep.endpoint.adapter, svritem->sep.endpoint.addr,
913 svritem->sep.endpoint.port, 0, false, strerror(errno));
914 return CA_SOCKET_OPERATION_FAILED;
917 OIC_LOG(INFO, TAG, "connect socket success");
918 svritem->state = CONNECTED;
919 CHECKFD(svritem->fd);
920 ssize_t len = CAWakeUpForReadFdsUpdate(svritem->sep.endpoint.addr);
923 OIC_LOG(ERROR, TAG, "wakeup receive thread failed");
924 return CA_SOCKET_OPERATION_FAILED;
927 #if defined(__TIZEN__)
928 // #5. Send HTTP CONNECT to proxy if proxy
930 const char *cloud_address = CAGetCloudAddressForProxy();
931 OIC_LOG_V(INFO, TAG, "Proxy : '%s'", cloud_address ? cloud_address : "(nil)");
933 if(cloud_address && *cloud_address)
936 int len = sprintf(message,
937 "CONNECT %s HTTP/1.1\r\n"
938 "Host: %s\r\n\r\n", cloud_address, cloud_address
941 ssize_t l = send(fd, message, len, 0);
944 OIC_LOG_V(ERROR, TAG, "failed to send HTTP CONNECT data (expected %d bytes, ret %d)", len, l);
947 return CA_SOCKET_OPERATION_FAILED;
950 // maybe this should be called in other thread, it causes bottleneck.
951 OIC_LOG_V(INFO, TAG, "Message sent is : '%s'\n", message);
954 OIC_LOG_V(INFO, TAG, "Receiving response to CONNECT from proxy...");
956 l = recv(fd, message, 4096, 0);
958 OIC_LOG_V(INFO, TAG, "Received data : '%s'", message);
959 OIC_LOG_V(INFO, TAG, "Received len = %d", l);
961 int status_code = CAGetHTTPStatusCode(message);
963 OIC_LOG_V(INFO, TAG, "HTTP status_code : %d", status_code);
964 if(status_code < 200 || status_code > 299)
966 OIC_LOG_V(ERROR, TAG, "Error, Wrong status code: %d", status_code);
969 return CA_SOCKET_OPERATION_FAILED;
977 static CASocketFd_t CACreateAcceptSocket(int family, CASocket_t *sock)
979 VERIFY_NON_NULL_RET(sock, TAG, "sock", -1);
981 if (OC_INVALID_SOCKET != sock->fd)
983 OIC_LOG(DEBUG, TAG, "accept socket created already");
987 socklen_t socklen = 0;
988 struct sockaddr_storage server = { .ss_family = family };
990 int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
991 if (OC_INVALID_SOCKET == fd)
993 OIC_LOG(ERROR, TAG, "Failed to create socket");
997 if (family == AF_INET6)
999 // the socket is restricted to sending and receiving IPv6 packets only.
1001 //TODO: enable once IPv6 is supported
1003 if (-1 == setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on)))
1005 OIC_LOG_V(ERROR, TAG, "IPV6_V6ONLY failed: %s", strerror(errno));
1009 ((struct sockaddr_in6 *)&server)->sin6_port = htons(sock->port);
1010 socklen = sizeof (struct sockaddr_in6);
1014 ((struct sockaddr_in *)&server)->sin_port = htons(sock->port);
1015 socklen = sizeof (struct sockaddr_in);
1019 if (-1 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)))
1021 OIC_LOG(ERROR, TAG, "setsockopt SO_REUSEADDR");
1025 if (-1 == bind(fd, (struct sockaddr *)&server, socklen))
1027 OIC_LOG_V(ERROR, TAG, "bind socket failed: %s", strerror(errno));
1031 if (listen(fd, caglobals.tcp.listenBacklog) != 0)
1033 OIC_LOG(ERROR, TAG, "listen() error");
1037 if (sock->port) // use the given port
1040 if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, OPTVAL_T(&on), sizeof (on)))
1042 OIC_LOG_V(ERROR, TAG, "SO_REUSEADDR failed: %s", strerror(errno));
1044 return OC_INVALID_SOCKET;
1047 else // return the assigned port
1049 if (-1 == getsockname(fd, (struct sockaddr *)&server, &socklen))
1051 OIC_LOG_V(ERROR, TAG, "getsockname failed: %s", strerror(errno));
1054 sock->port = ntohs(family == AF_INET6 ?
1055 ((struct sockaddr_in6 *)&server)->sin6_port :
1056 ((struct sockaddr_in *)&server)->sin_port);
1066 return OC_INVALID_SOCKET;
1069 static void CAInitializePipe(int *fds)
1071 int ret = pipe(fds);
1072 // TODO: Remove temporary workaround once F_GETFD / F_SETFD support is in TizenRT
1073 /* Temporary workaround: By pass F_GETFD / F_SETFD */
1083 OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
1088 ret = fcntl(fds[0], F_GETFD);
1091 ret = fcntl(fds[0], F_SETFD, ret|FD_CLOEXEC);
1095 ret = fcntl(fds[1], F_GETFD);
1099 ret = fcntl(fds[1], F_SETFD, ret|FD_CLOEXEC);
1109 OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
1115 #ifndef DISABLE_TCP_SERVER
1116 #define NEWSOCKET(FAMILY, NAME) \
1117 caglobals.tcp.NAME.fd = CACreateAcceptSocket(FAMILY, &caglobals.tcp.NAME); \
1118 if (caglobals.tcp.NAME.fd == -1) \
1120 caglobals.tcp.NAME.port = 0; \
1121 caglobals.tcp.NAME.fd = CACreateAcceptSocket(FAMILY, &caglobals.tcp.NAME); \
1123 CHECKFD(caglobals.tcp.NAME.fd);
1125 void CATCPInitializeSocket()
1127 #ifndef __WITH_TLS__
1128 NEWSOCKET(AF_INET, ipv4);
1130 NEWSOCKET(AF_INET, ipv4s);
1133 //TODO Enable once TizenRT supports IPv6
1135 #ifndef __WITH_TLS__
1136 NEWSOCKET(AF_INET6, ipv6);
1138 NEWSOCKET(AF_INET6, ipv6s);
1141 #ifndef __WITH_TLS__
1142 OIC_LOG_V(DEBUG, TAG, "IPv4 socket fd=%d, port=%d",
1143 caglobals.tcp.ipv4.fd, caglobals.tcp.ipv4.port);
1144 OIC_LOG_V(DEBUG, TAG, "IPv6 socket fd=%d, port=%d",
1145 caglobals.tcp.ipv6.fd, caglobals.tcp.ipv6.port);
1147 OIC_LOG_V(DEBUG, TAG, "IPv4 secure socket fd=%d, port=%d",
1148 caglobals.tcp.ipv4s.fd, caglobals.tcp.ipv4s.port);
1149 OIC_LOG_V(DEBUG, TAG, "IPv6 secure socket fd=%d, port=%d",
1150 caglobals.tcp.ipv6s.fd, caglobals.tcp.ipv6s.port);
1153 #endif // DISABLE_TCP_SERVER
1155 CAResult_t CATCPStartServer(const ca_thread_pool_t threadPool)
1157 oc_mutex_lock(g_mutexObjectList);
1158 if (caglobals.tcp.started)
1160 oc_mutex_unlock(g_mutexObjectList);
1161 OIC_LOG(INFO, TAG, "Adapter is started already");
1162 return CA_STATUS_OK;
1165 g_threadPool = threadPool;
1167 if (!caglobals.tcp.ipv4tcpenabled)
1169 caglobals.tcp.ipv4tcpenabled = true; // only needed to run CA tests
1171 if (!caglobals.tcp.ipv6tcpenabled)
1173 caglobals.tcp.ipv6tcpenabled = true; // only needed to run CA tests
1176 caglobals.tcp.terminate = false;
1177 if (!caglobals.tcp.svrlist)
1179 caglobals.tcp.svrlist = u_arraylist_create();
1182 #ifndef DISABLE_TCP_SERVER
1183 if (caglobals.server)
1185 CATCPInitializeSocket();
1190 // create pipe for fast shutdown
1191 CAInitializePipe(caglobals.tcp.shutdownFds);
1192 CHECKFD(caglobals.tcp.shutdownFds[0]);
1193 CHECKFD(caglobals.tcp.shutdownFds[1]);
1195 // create pipe for connection event
1196 CAInitializePipe(caglobals.tcp.connectionFds);
1197 CHECKFD(caglobals.tcp.connectionFds[0]);
1198 CHECKFD(caglobals.tcp.connectionFds[1]);
1200 CAResult_t res = CA_STATUS_OK;
1202 res = ca_thread_pool_add_task(g_threadPool, CAReceiveHandler, NULL, NULL);
1204 res = ca_thread_pool_add_task(g_threadPool, CAReceiveHandler, NULL, NULL,
1205 "IoT_TCPReceive", CONFIG_IOTIVITY_TCPRECEIVE_PTHREAD_STACKSIZE);
1207 if (CA_STATUS_OK != res)
1209 oc_mutex_unlock(g_mutexObjectList);
1210 OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
1215 caglobals.tcp.started = true;
1216 oc_mutex_unlock(g_mutexObjectList);
1218 OIC_LOG(INFO, TAG, "CAReceiveHandler thread started successfully.");
1219 return CA_STATUS_OK;
1222 void CATCPStopServer()
1224 oc_mutex_lock(g_mutexObjectList);
1225 if (caglobals.tcp.terminate)
1227 oc_mutex_unlock(g_mutexObjectList);
1228 OIC_LOG(INFO, TAG, "Adapter is not enabled");
1232 // set terminate flag.
1233 caglobals.tcp.terminate = true;
1235 oc_mutex_lock(g_mutexSend);
1236 oc_cond_signal(g_condSend);
1237 oc_mutex_unlock(g_mutexSend);
1240 if (caglobals.tcp.started)
1242 oc_cond_wait(g_condObjectList, g_mutexObjectList);
1243 caglobals.tcp.started = false;
1247 // close accept socket.
1248 #ifndef __WITH_TLS__
1252 CLOSE_SOCKET(ipv4s);
1253 CLOSE_SOCKET(ipv6s);
1256 if (caglobals.tcp.connectionFds[1] != OC_INVALID_SOCKET)
1258 close(caglobals.tcp.connectionFds[1]);
1259 caglobals.tcp.connectionFds[1] = OC_INVALID_SOCKET;
1261 if (caglobals.tcp.connectionFds[0] != OC_INVALID_SOCKET)
1263 close(caglobals.tcp.connectionFds[0]);
1264 caglobals.tcp.connectionFds[0] = OC_INVALID_SOCKET;
1267 if (caglobals.tcp.shutdownFds[1] != OC_INVALID_SOCKET)
1269 close(caglobals.tcp.shutdownFds[1]);
1270 caglobals.tcp.shutdownFds[1] = OC_INVALID_SOCKET;
1271 // receive thread will stop immediately
1273 if (caglobals.tcp.started)
1275 oc_cond_wait(g_condObjectList, g_mutexObjectList);
1276 caglobals.tcp.started = false;
1278 if (caglobals.tcp.shutdownFds[0] != OC_INVALID_SOCKET)
1280 close(caglobals.tcp.shutdownFds[0]);
1281 caglobals.tcp.shutdownFds[0] = OC_INVALID_SOCKET;
1284 oc_mutex_unlock(g_mutexObjectList);
1286 CATCPDisconnectAll();
1289 OIC_LOG(INFO, TAG, "Adapter terminated successfully");
1292 void CATCPSetPacketReceiveCallback(CATCPPacketReceivedCallback callback)
1294 g_packetReceivedCallback = callback;
1297 void CATCPSetConnectionChangedCallback(CATCPConnectionHandleCallback connHandler)
1299 g_connectionCallback = connHandler;
1302 size_t CACheckPayloadLengthFromHeader(const void *data, size_t dlen)
1304 VERIFY_NON_NULL_RET(data, TAG, "data", -1);
1306 coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(
1307 ((unsigned char *)data)[0] >> 4);
1309 coap_pdu_t *pdu = coap_new_pdu2(transport, dlen);
1312 OIC_LOG(ERROR, TAG, "outpdu is null");
1313 OIC_LOG_V(ERROR, TAG, "data length: %zu", dlen);
1317 int ret = coap_pdu_parse2((unsigned char *) data, dlen, pdu, transport);
1320 OIC_LOG(ERROR, TAG, "pdu parse failed");
1321 coap_delete_pdu(pdu);
1325 size_t payloadLen = 0;
1326 size_t headerSize = coap_get_tcp_header_length_for_transport(transport);
1327 OIC_LOG_V(DEBUG, TAG, "headerSize : %zu, pdu length : %d",
1328 headerSize, pdu->length);
1329 if (pdu->length > headerSize)
1331 payloadLen = (unsigned char *) pdu->hdr + pdu->length - pdu->data;
1339 static ssize_t sendData(const CAEndpoint_t *endpoint, const void *data,
1340 size_t dlen, const char *fam)
1342 OIC_LOG_V(INFO, TAG, "The length of data that needs to be sent is %zu bytes", dlen);
1344 // #1. find a session info from list.
1345 CASocketFd_t sockFd = CAGetSocketFDFromEndpoint(endpoint);
1346 if (OC_INVALID_SOCKET == sockFd)
1348 // if there is no connection info, connect to remote device.
1349 sockFd = CAConnectTCPSession(endpoint);
1350 if (OC_INVALID_SOCKET == sockFd)
1352 OIC_LOG(ERROR, TAG, "Failed to create tcp session object");
1357 // #2. send data to remote device.
1358 ssize_t remainLen = dlen;
1359 unsigned int sendRetryTime = 1;
1363 ssize_t len = send(sockFd, data, remainLen, MSG_DONTWAIT | MSG_NOSIGNAL);
1365 ssize_t len = send(sockFd, data, remainLen, MSG_DONTWAIT);
1369 if (EWOULDBLOCK != errno && EAGAIN != errno)
1371 OIC_LOG_V(ERROR, TAG, "unicast ipv4tcp sendTo failed: %s", strerror(errno));
1372 CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
1373 len, false, strerror(errno));
1377 // re-trying send after 10, 20, 40, 80, 160 and 320 milliseconds
1378 if (sendRetryTime > 32)
1383 unsigned int waitTime = sendRetryTime * 10 * MILLISECONDS_PER_SECOND;
1384 OIC_LOG_V(WARNING, TAG, "send blocked. trying send after %u microseconds", waitTime);
1386 oc_mutex_lock(g_mutexSend);
1387 oc_cond_wait_for(g_condSend, g_mutexSend, waitTime);
1388 oc_mutex_unlock(g_mutexSend);
1390 oc_mutex_lock(g_mutexObjectList);
1391 if (caglobals.tcp.terminate)
1393 oc_mutex_unlock(g_mutexObjectList);
1396 oc_mutex_unlock(g_mutexObjectList);
1398 sendRetryTime = (sendRetryTime << 1);
1405 } while (remainLen > 0);
1410 OIC_LOG_V(INFO, TAG, "unicast %stcp sendTo is successful: %zu bytes", fam, dlen);
1411 CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
1416 ssize_t CATCPSendData(CAEndpoint_t *endpoint, const void *data, size_t datalen)
1418 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", -1);
1419 VERIFY_NON_NULL_RET(data, TAG, "data is NULL", -1);
1421 if (caglobals.tcp.ipv6tcpenabled && (endpoint->flags & CA_IPV6))
1423 return sendData(endpoint, data, datalen, "ipv6");
1425 if (caglobals.tcp.ipv4tcpenabled && (endpoint->flags & CA_IPV4))
1427 return sendData(endpoint, data, datalen, "ipv4");
1430 OIC_LOG(ERROR, TAG, "Not supported transport flags");
1434 CAResult_t CAGetTCPInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
1436 VERIFY_NON_NULL(info, TAG, "info is NULL");
1437 VERIFY_NON_NULL(size, TAG, "size is NULL");
1439 return CA_NOT_SUPPORTED;
1442 CASocketFd_t CAConnectTCPSession(const CAEndpoint_t *endpoint)
1444 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", OC_INVALID_SOCKET);
1446 // #1. create TCP server object
1447 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
1450 OIC_LOG(ERROR, TAG, "Out of memory");
1451 return OC_INVALID_SOCKET;
1453 memcpy(svritem->sep.endpoint.addr, endpoint->addr, sizeof(svritem->sep.endpoint.addr));
1454 svritem->sep.endpoint.adapter = endpoint->adapter;
1455 svritem->sep.endpoint.port = endpoint->port;
1456 svritem->sep.endpoint.flags = endpoint->flags;
1457 svritem->sep.endpoint.ifindex = endpoint->ifindex;
1458 svritem->state = CONNECTING;
1459 svritem->isClient = true;
1461 // Allocate message buffer
1462 svritem->tlsdata = (unsigned char*) OICCalloc(TLS_DATA_MAX_SIZE, sizeof(unsigned char));
1463 if (!svritem->tlsdata)
1465 OIC_LOG(ERROR, TAG, "Out of memory");
1467 return OC_INVALID_SOCKET;
1470 // #2. add TCP connection info to list
1471 oc_mutex_lock(g_mutexObjectList);
1472 if (caglobals.tcp.svrlist)
1474 bool res = u_arraylist_add(caglobals.tcp.svrlist, svritem);
1477 OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
1479 OICFree(svritem->tlsdata);
1481 oc_mutex_unlock(g_mutexObjectList);
1482 return OC_INVALID_SOCKET;
1485 oc_mutex_unlock(g_mutexObjectList);
1487 // #3. create the socket and connect to TCP server
1488 int family = (svritem->sep.endpoint.flags & CA_IPV6) ? AF_INET6 : AF_INET;
1489 if (CA_STATUS_OK != CATCPCreateSocket(family, svritem))
1491 return OC_INVALID_SOCKET;
1494 // #4. pass the connection information to CA Common Layer.
1495 if (g_connectionCallback)
1497 g_connectionCallback(&(svritem->sep.endpoint), true, svritem->isClient);
1503 CAResult_t CADisconnectTCPSession(size_t index)
1505 CATCPSessionInfo_t *removedData = u_arraylist_remove(caglobals.tcp.svrlist, index);
1508 OIC_LOG(DEBUG, TAG, "there is no data to be removed");
1509 return CA_STATUS_OK;
1512 // close the socket and remove session info in list.
1513 if (removedData->fd >= 0)
1515 shutdown(removedData->fd, SHUT_RDWR);
1516 close(removedData->fd);
1517 removedData->fd = -1;
1518 removedData->state = (CONNECTED == removedData->state) ?
1519 DISCONNECTED : removedData->state;
1521 // pass the connection information to CA Common Layer.
1522 if (g_connectionCallback && DISCONNECTED == removedData->state)
1524 g_connectionCallback(&(removedData->sep.endpoint), false, removedData->isClient);
1527 OICFree(removedData->data);
1528 removedData->data = NULL;
1530 OICFree(removedData->tlsdata);
1531 removedData->tlsdata = NULL;
1533 OICFree(removedData);
1536 OIC_LOG(DEBUG, TAG, "data is removed from session list");
1538 #ifndef DISABLE_TCP_SERVER
1539 if (caglobals.server && MAX_CONNECTION_COUNTS == u_arraylist_length(caglobals.tcp.svrlist) + 1)
1541 CATCPInitializeSocket();
1545 return CA_STATUS_OK;
1548 void CATCPDisconnectAll()
1550 OIC_LOG(DEBUG, TAG, "IN - CATCPDisconnectAll");
1552 oc_mutex_lock(g_mutexObjectList);
1554 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1555 for (ssize_t index = length; index > 0; index--)
1557 // disconnect session from remote device.
1558 CADisconnectTCPSession(index - 1);
1561 u_arraylist_destroy(caglobals.tcp.svrlist);
1562 caglobals.tcp.svrlist = NULL;
1564 oc_mutex_unlock(g_mutexObjectList);
1567 CAcloseSslConnectionAll(CA_ADAPTER_TCP);
1570 OIC_LOG(DEBUG, TAG, "OUT - CATCPDisconnectAll");
1573 CATCPSessionInfo_t *CAGetTCPSessionInfoFromEndpoint(const CAEndpoint_t *endpoint, size_t *index)
1575 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", NULL);
1576 VERIFY_NON_NULL_RET(index, TAG, "index is NULL", NULL);
1578 OIC_LOG_V(DEBUG, TAG, "Looking for [%s:%d]", endpoint->addr, endpoint->port);
1580 // get connection info from list
1581 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1582 for (size_t i = 0; i < length; i++)
1584 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
1585 caglobals.tcp.svrlist, i);
1591 if (!strncmp(svritem->sep.endpoint.addr, endpoint->addr,
1592 sizeof(svritem->sep.endpoint.addr))
1593 && (svritem->sep.endpoint.port == endpoint->port)
1594 && (svritem->sep.endpoint.flags & endpoint->flags))
1596 OIC_LOG(DEBUG, TAG, "Found in session list");
1602 OIC_LOG(DEBUG, TAG, "Session not found");
1606 CASocketFd_t CAGetSocketFDFromEndpoint(const CAEndpoint_t *endpoint)
1608 VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", OC_INVALID_SOCKET);
1610 OIC_LOG_V(DEBUG, TAG, "Looking for [%s:%d]", endpoint->addr, endpoint->port);
1612 // get connection info from list.
1613 oc_mutex_lock(g_mutexObjectList);
1614 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1615 for (size_t i = 0; i < length; i++)
1617 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
1618 caglobals.tcp.svrlist, i);
1624 if (!strncmp(svritem->sep.endpoint.addr, endpoint->addr,
1625 sizeof(svritem->sep.endpoint.addr))
1626 && (svritem->sep.endpoint.port == endpoint->port)
1627 && (svritem->sep.endpoint.flags & endpoint->flags))
1629 oc_mutex_unlock(g_mutexObjectList);
1630 OIC_LOG(DEBUG, TAG, "Found in session list");
1635 oc_mutex_unlock(g_mutexObjectList);
1636 OIC_LOG(DEBUG, TAG, "Session not found");
1637 return OC_INVALID_SOCKET;
1640 CATCPSessionInfo_t *CAGetSessionInfoFromFD(int fd, size_t *index)
1643 // check from the last item.
1644 CATCPSessionInfo_t *svritem = NULL;
1645 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1646 for (size_t i = 0; i < length; i++)
1648 svritem = (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
1650 if (svritem && svritem->fd == fd)
1653 oc_mutex_unlock(g_mutexObjectList);
1662 static CATCPSessionInfo_t *CAGetSessionInfoFromFDAsOwner(int fd, size_t *index)
1664 CATCPSessionInfo_t *svritem = NULL;
1665 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1666 for (size_t i = 0; i < length; i++)
1668 svritem = (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
1670 if (svritem && svritem->fd == fd)
1680 CAResult_t CASearchAndDeleteTCPSession(const CAEndpoint_t *endpoint)
1682 oc_mutex_lock(g_mutexObjectList);
1684 CAResult_t result = CA_STATUS_OK;
1686 CATCPSessionInfo_t *svritem = CAGetTCPSessionInfoFromEndpoint(endpoint, &index);
1689 result = CADisconnectTCPSession(index);
1690 if (CA_STATUS_OK != result)
1692 OIC_LOG_V(ERROR, TAG, "CADisconnectTCPSession failed, result[%d]", result);
1696 oc_mutex_unlock(g_mutexObjectList);
1700 void CATCPCloseInProgressConnections()
1702 OIC_LOG(INFO, TAG, "IN - CATCPCloseInProgressConnections");
1704 oc_mutex_lock(g_mutexObjectList);
1706 uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
1707 for (size_t index = 0; index < length; index++)
1709 CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
1710 caglobals.tcp.svrlist, index);
1716 // Session which are connecting state
1717 if (svritem->fd >= 0 && svritem->state == CONNECTING)
1719 shutdown(svritem->fd, SHUT_RDWR);
1722 svritem->state = DISCONNECTED;
1726 oc_mutex_unlock(g_mutexObjectList);
1728 OIC_LOG(INFO, TAG, "OUT - CATCPCloseInProgressConnections");
1731 size_t CAGetTotalLengthFromHeader(const unsigned char *recvBuffer)
1733 OIC_LOG(DEBUG, TAG, "IN - CAGetTotalLengthFromHeader");
1735 coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(
1736 ((unsigned char *)recvBuffer)[0] >> 4);
1737 size_t optPaylaodLen = coap_get_length_from_header((unsigned char *)recvBuffer,
1739 size_t headerLen = coap_get_tcp_header_length((unsigned char *)recvBuffer);
1741 OIC_LOG_V(DEBUG, TAG, "option/paylaod length [%zu]", optPaylaodLen);
1742 OIC_LOG_V(DEBUG, TAG, "header length [%zu]", headerLen);
1743 OIC_LOG_V(DEBUG, TAG, "total data length [%zu]", headerLen + optPaylaodLen);
1745 OIC_LOG(DEBUG, TAG, "OUT - CAGetTotalLengthFromHeader");
1746 return headerLen + optPaylaodLen;
1749 void CATCPSetErrorHandler(CATCPErrorHandleCallback errorHandleCallback)
1751 g_tcpErrorHandler = errorHandleCallback;