-/* ****************************************************************j
+/* ****************************************************************
*
* Copyright 2015 Samsung Electronics All Rights Reserved.
*
#include <sys/types.h>
#include <sys/socket.h>
+#include <sys/select.h>
#include <sys/ioctl.h>
+#ifdef __TIZENRT__
+#include <tinyara/config.h>
+#include <poll.h>
+#else
+#include <sys/poll.h>
+#endif
#include <stdio.h>
#include <unistd.h>
-#include <sys/types.h>
#include <fcntl.h>
-#include <sys/select.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <errno.h>
-#include <sys/poll.h>
#ifndef WITH_ARDUINO
#include <sys/socket.h>
#endif
#include "catcpinterface.h"
-#include "pdu.h"
+#include "caipnwmonitor.h"
+#include <coap/pdu.h>
#include "caadapterutils.h"
-#include "camutex.h"
+#include "octhread.h"
#include "oic_malloc.h"
-#include "oic_string.h"
+
+#ifdef __WITH_TLS__
+#include "ca_adapter_net_ssl.h"
+#endif
/**
* Logging tag for module name.
*/
-#define TAG "TCP_SERVER"
+//#define TAG "OIC_CA_TCP_SERVER"
+#define TAG TCP_SERVER_TAG
/**
- * Server port number for local test.
+ * Maximum CoAP over TCP header length
+ * to know the total data length.
*/
-#define SERVER_PORT 8000
+#define COAP_MAX_HEADER_SIZE 6
/**
- * Maximum CoAP over TCP header length
- * to know the total data length.
+ * TLS header size
*/
-#define TCP_MAX_HEADER_LEN 6
+#define TLS_HEADER_SIZE 5
/**
- * Default Thread Counts in TCP adapter
+ * Max Connection Counts.
*/
-#define CA_TCP_DEFAULT_THREAD_COUNTS 2
+#define MAX_CONNECTION_COUNTS 500
/**
- * Accept server file descriptor.
+ * Thread pool.
*/
-static int g_acceptServerFD = -1;
+static ca_thread_pool_t g_threadPool = NULL;
/**
- * Mutex to synchronize device object list.
+ * An unique identifier of receive thread.
*/
-static ca_mutex g_mutexObjectList = NULL;
+static uint32_t g_recvThreadId = 0;
/**
- * Conditional mutex to synchronize.
+ * Mutex to synchronize device object list.
*/
-static ca_cond g_condObjectList = NULL;
+static oc_mutex g_mutexObjectList = NULL;
/**
- * Maintains the current running thread counts.
+ * Conditional mutex to synchronize.
*/
-static uint32_t g_threadCounts = CA_TCP_DEFAULT_THREAD_COUNTS;
+static oc_cond g_condObjectList = NULL;
/**
* Maintains the callback to be notified when data received from remote device.
*/
-static CATCPPacketReceivedCallback g_packetReceivedCallback;
+static CATCPPacketReceivedCallback g_packetReceivedCallback = NULL;
/**
* Error callback to update error in TCP.
*/
-static CATCPErrorHandleCallback g_TCPErrorHandler = NULL;
+static CATCPErrorHandleCallback g_tcpErrorHandler = NULL;
+
+/**
+ * Connected Callback to pass the connection information to RI.
+ */
+static CATCPConnectionHandleCallback g_connectionCallback = NULL;
-static CAResult_t CATCPCreateMutex();
-static void CATCPDestroyMutex();
-static CAResult_t CATCPCreateCond();
-static void CATCPDestroyCond();
-static void CAAcceptHandler(void *data);
+static CASocketFd_t CACreateAcceptSocket(int family, CASocket_t *sock);
+static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock);
+static void CAFindReadyMessage();
+static void CASelectReturned(fd_set *readFds);
+static void CAReceiveMessage(int fd);
static void CAReceiveHandler(void *data);
-static CAResult_t CAReceiveMessage();
-static int CASetNonblocking(int fd);
-static int CATCPCreateSocket(int family, CATCPServerInfo_t *TCPServerInfo);
-static size_t CAGetTotalLengthFromHeader(const unsigned char *recvBuffer);
-static void CATCPDisconnectAll();
+static CAResult_t CATCPCreateSocket(int family, CATCPSessionInfo_t *svritem);
+static void CATCPInitializeSocket();
+
+#define CHECKFD(FD) \
+ if (FD > caglobals.tcp.maxfd) \
+ caglobals.tcp.maxfd = FD;
+
+#define CLOSE_SOCKET(TYPE) \
+ if (caglobals.tcp.TYPE.fd != OC_INVALID_SOCKET) \
+ { \
+ close(caglobals.tcp.TYPE.fd); \
+ caglobals.tcp.TYPE.fd = OC_INVALID_SOCKET; \
+ }
+
+#define CA_FD_SET(TYPE, FDS) \
+ if (caglobals.tcp.TYPE.fd != OC_INVALID_SOCKET) \
+ { \
+ FD_SET(caglobals.tcp.TYPE.fd, FDS); \
+ }
-static void CATCPDestroyMutex()
+void CATCPDestroyMutex()
{
if (g_mutexObjectList)
{
- ca_mutex_free(g_mutexObjectList);
+ oc_mutex_free(g_mutexObjectList);
g_mutexObjectList = NULL;
}
}
-static CAResult_t CATCPCreateMutex()
+CAResult_t CATCPCreateMutex()
{
if (!g_mutexObjectList)
{
- g_mutexObjectList = ca_mutex_new();
+ g_mutexObjectList = oc_mutex_new();
if (!g_mutexObjectList)
{
OIC_LOG(ERROR, TAG, "Failed to created mutex!");
return CA_STATUS_OK;
}
-static void CATCPDestroyCond()
+void CATCPDestroyCond()
{
if (g_condObjectList)
{
- ca_cond_free(g_condObjectList);
+ oc_cond_free(g_condObjectList);
g_condObjectList = NULL;
}
}
-static CAResult_t CATCPCreateCond()
+CAResult_t CATCPCreateCond()
{
if (!g_condObjectList)
{
- g_condObjectList = ca_cond_new();
+ g_condObjectList = oc_cond_new();
if (!g_condObjectList)
{
OIC_LOG(ERROR, TAG, "Failed to created cond!");
return CA_STATUS_OK;
}
-static void CATCPDisconnectAll()
+static void CAReceiveHandler(void *data)
{
- OIC_LOG(DEBUG, TAG, "IN");
+ (void)data;
+ OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
- ca_mutex_lock(g_mutexObjectList);
- uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ while (!caglobals.tcp.terminate)
+ {
+ CAFindReadyMessage();
+ }
+
+ oc_mutex_lock(g_mutexObjectList);
+ oc_cond_signal(g_condObjectList);
+ oc_mutex_unlock(g_mutexObjectList);
- CATCPServerInfo_t *svritem = NULL;
+ OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
+}
+
+static void CAFindReadyMessage()
+{
+ fd_set readFds;
+ struct timeval timeout = { .tv_sec = caglobals.tcp.selectTimeout };
+
+ FD_ZERO(&readFds);
+ CA_FD_SET(ipv4, &readFds);
+ CA_FD_SET(ipv4s, &readFds);
+ CA_FD_SET(ipv6, &readFds);
+ CA_FD_SET(ipv6s, &readFds);
+#ifndef __TIZENRT__
+ if (OC_INVALID_SOCKET != caglobals.tcp.shutdownFds[0])
+ {
+ FD_SET(caglobals.tcp.shutdownFds[0], &readFds);
+ }
+#endif
+ if (OC_INVALID_SOCKET != caglobals.tcp.connectionFds[0])
+ {
+ FD_SET(caglobals.tcp.connectionFds[0], &readFds);
+ }
+
+ uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
- svritem = (CATCPServerInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
- if (svritem && svritem->u4tcp.fd >= 0)
+ CATCPSessionInfo_t *svritem =
+ (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
+ if (svritem && 0 <= svritem->fd && CONNECTED == svritem->state)
{
- shutdown(svritem->u4tcp.fd, SHUT_RDWR);
- close(svritem->u4tcp.fd);
+ FD_SET(svritem->fd, &readFds);
}
}
- u_arraylist_destroy(caglobals.tcp.svrlist);
- caglobals.tcp.svrlist = NULL;
- ca_mutex_unlock(g_mutexObjectList);
- OIC_LOG(DEBUG, TAG, "OUT");
+ int ret = select(caglobals.tcp.maxfd + 1, &readFds, NULL, NULL, &timeout);
+
+ if (caglobals.tcp.terminate)
+ {
+ OIC_LOG_V(INFO, TAG, "Packet receiver Stop request received.");
+ return;
+ }
+ if (0 >= ret)
+ {
+ if (0 > ret)
+ {
+ OIC_LOG_V(FATAL, TAG, "select error %s", strerror(errno));
+ }
+ return;
+ }
+
+ CASelectReturned(&readFds);
}
-static void CAReceiveHandler(void *data)
+static void CASelectReturned(fd_set *readFds)
{
- (void)data;
- OIC_LOG(DEBUG, TAG, "IN - CAReceiveHandler");
+ VERIFY_NON_NULL_VOID(readFds, TAG, "readFds is NULL");
- while (!caglobals.tcp.terminate)
+ if (caglobals.tcp.ipv4.fd != -1 && FD_ISSET(caglobals.tcp.ipv4.fd, readFds))
{
- CAReceiveMessage();
+ CAAcceptConnection(CA_IPV4, &caglobals.tcp.ipv4);
+ return;
}
-
- ca_mutex_lock(g_mutexObjectList);
- // notify the thread
- g_threadCounts--;
- if (!g_threadCounts)
+ else if (caglobals.tcp.ipv4s.fd != -1 && FD_ISSET(caglobals.tcp.ipv4s.fd, readFds))
{
- ca_cond_signal(g_condObjectList);
+ CAAcceptConnection(CA_IPV4 | CA_SECURE, &caglobals.tcp.ipv4s);
+ return;
+ }
+ else if (caglobals.tcp.ipv6.fd != -1 && FD_ISSET(caglobals.tcp.ipv6.fd, readFds))
+ {
+ CAAcceptConnection(CA_IPV6, &caglobals.tcp.ipv6);
+ return;
+ }
+ else if (caglobals.tcp.ipv6s.fd != -1 && FD_ISSET(caglobals.tcp.ipv6s.fd, readFds))
+ {
+ CAAcceptConnection(CA_IPV6 | CA_SECURE, &caglobals.tcp.ipv6s);
+ return;
+ }
+ else if (-1 != caglobals.tcp.connectionFds[0] &&
+ FD_ISSET(caglobals.tcp.connectionFds[0], readFds))
+ {
+ // new connection was created from remote device.
+ // exit the function to update read file descriptor.
+ char buf[MAX_ADDR_STR_SIZE_CA] = {0};
+ ssize_t len = read(caglobals.tcp.connectionFds[0], buf, sizeof (buf));
+ if (-1 == len)
+ {
+ return;
+ }
+ OIC_LOG_V(DEBUG, TAG, "Received new connection event with [%s]", buf);
+ return;
+ }
+ else
+ {
+ uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ for (size_t i = 0; i < length; i++)
+ {
+ CATCPSessionInfo_t *svritem =
+ (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
+ if (svritem && svritem->fd >= 0)
+ {
+ if (FD_ISSET(svritem->fd, readFds))
+ {
+ CAReceiveMessage(svritem->fd);
+ }
+ }
+ }
}
- ca_mutex_unlock(g_mutexObjectList);
-
- OIC_LOG(DEBUG, TAG, "OUT - CAReceiveHandler");
}
-static size_t CAGetTotalLengthFromHeader(const unsigned char *recvBuffer)
+static void CAAcceptConnection(CATransportFlags_t flag, CASocket_t *sock)
{
- OIC_LOG(DEBUG, TAG, "IN - CAGetTotalLengthFromHeader");
+ OIC_LOG_V(INFO, TAG, "In %s", __func__);
+ VERIFY_NON_NULL_VOID(sock, TAG, "sock is NULL");
- coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
- ((unsigned char *)recvBuffer)[0] >> 4);
- size_t optPaylaodLen = coap_get_length_from_header((unsigned char *)recvBuffer,
- transport);
- size_t headerLen = coap_get_tcp_header_length((unsigned char *)recvBuffer);
+ if (MAX_CONNECTION_COUNTS == u_arraylist_length(caglobals.tcp.svrlist))
+ {
+ OIC_LOG_V(INFO, TAG, "Exceeding the max connection counts limit, close listening port");
+ close(sock->fd);
+ sock->fd = OC_INVALID_SOCKET;
+ return;
+ }
- OIC_LOG_V(DEBUG, TAG, "option/paylaod length [%d]", optPaylaodLen);
- OIC_LOG_V(DEBUG, TAG, "header length [%d]", headerLen);
- OIC_LOG_V(DEBUG, TAG, "total data length [%d]", headerLen + optPaylaodLen);
+ struct sockaddr_storage clientaddr;
+ socklen_t clientlen = sizeof (struct sockaddr_in);
+ if (flag & CA_IPV6)
+ {
+ clientlen = sizeof(struct sockaddr_in6);
+ }
- OIC_LOG(DEBUG, TAG, "OUT - CAGetTotalLengthFromHeader");
- return headerLen + optPaylaodLen;
+ CASocketFd_t sockfd = accept(sock->fd, (struct sockaddr *)&clientaddr, &clientlen);
+ if (OC_INVALID_SOCKET != sockfd)
+ {
+ CATCPSessionInfo_t *svritem =
+ (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
+ if (!svritem)
+ {
+ OIC_LOG(ERROR, TAG, "Out of memory");
+ close(sockfd);
+ return;
+ }
+
+ svritem->fd = sockfd;
+ svritem->sep.endpoint.flags = flag;
+ svritem->sep.endpoint.adapter = CA_ADAPTER_TCP;
+ svritem->state = CONNECTED;
+ svritem->isClient = false;
+ CAConvertAddrToName((struct sockaddr_storage *)&clientaddr, clientlen,
+ svritem->sep.endpoint.addr, &svritem->sep.endpoint.port);
+
+ oc_mutex_lock(g_mutexObjectList);
+ bool result = u_arraylist_add(caglobals.tcp.svrlist, svritem);
+ if (!result)
+ {
+ OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
+ close(sockfd);
+ OICFree(svritem);
+ oc_mutex_unlock(g_mutexObjectList);
+ return;
+ }
+ oc_mutex_unlock(g_mutexObjectList);
+
+ CHECKFD(sockfd);
+
+ // pass the connection information to CA Common Layer.
+ if (g_connectionCallback)
+ {
+ g_connectionCallback(&(svritem->sep.endpoint), true, svritem->isClient);
+ }
+ }
+ OIC_LOG_V(INFO, TAG, "Out %s", __func__);
}
-static CAResult_t CAReceiveMessage()
+/**
+ * Clean socket state data
+ *
+ * @param[in/out] item - socket state data
+ */
+void CACleanData(CATCPSessionInfo_t *svritem)
{
- uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ if (svritem)
+ {
+ OICFree(svritem->data);
+ svritem->data = NULL;
+ svritem->len = 0;
+#ifdef __WITH_TLS__
+ svritem->tlsLen = 0;
+#endif
+ svritem->totalLen = 0;
+ svritem->protocol = UNKNOWN;
+ }
+}
+
+/**
+ * Construct CoAP header and payload from buffer
+ *
+ * @param[in] svritem - used socket, buffer, current received message length and protocol
+ * @param[in/out] data - data buffer, this value is updated as data is copied to svritem
+ * @param[in/out] dataLength - length of data, this value decreased as data is copied to svritem
+ * @return - CA_STATUS_OK or appropriate error code
+ */
+CAResult_t CAConstructCoAP(CATCPSessionInfo_t *svritem, unsigned char **data,
+ size_t *dataLength)
+{
+ OIC_LOG_V(DEBUG, TAG, "In %s", __func__);
- size_t i = 0;
- unsigned char *recvBuffer = NULL;
- CATCPServerInfo_t *svritem = NULL;
- for (i = 0; i < length; i++)
+ if (NULL == svritem || NULL == data || NULL == dataLength)
{
- svritem = (CATCPServerInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
- if (svritem->u4tcp.fd < 0)
+ OIC_LOG(ERROR, TAG, "Invalid input parameter(NULL)");
+ return CA_STATUS_INVALID_PARAM;
+ }
+
+ unsigned char *inBuffer = *data;
+ size_t inLen = *dataLength;
+ OIC_LOG_V(DEBUG, TAG, "before-datalength : %u", *dataLength);
+
+ if (NULL == svritem->data && inLen > 0)
+ {
+ // allocate memory for message header (CoAP header size because it is bigger)
+ svritem->data = (unsigned char *) OICCalloc(1, COAP_MAX_HEADER_SIZE);
+ if (NULL == svritem->data)
{
- continue;
+ OIC_LOG(ERROR, TAG, "OICCalloc - out of memory");
+ return CA_MEMORY_ALLOC_FAILED;
}
- size_t bufSize = TCP_MAX_HEADER_LEN;
- recvBuffer = (unsigned char *) OICCalloc(1, bufSize);
- if (!recvBuffer)
+ // copy 1 byte to parse coap header length
+ memcpy(svritem->data, inBuffer, 1);
+ svritem->len = 1;
+ inBuffer++;
+ inLen--;
+ }
+
+ //if not enough data received - read them on next CAFillHeader() call
+ if (0 == inLen)
+ {
+ return CA_STATUS_OK;
+ }
+
+ //if enough data received - parse header
+ svritem->protocol = COAP;
+
+ //seems CoAP data received. read full coap header.
+ coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(svritem->data[0] >> 4);
+ size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
+ size_t copyLen = 0;
+
+ // HEADER
+ if (svritem->len < headerLen)
+ {
+ copyLen = headerLen - svritem->len;
+ if (inLen < copyLen)
{
- OIC_LOG(ERROR, TAG, "out of memory");
- goto exit;
+ copyLen = inLen;
}
- bool isHeaderChecked = false;
- size_t totalLen = 0;
- size_t totalReceivedLen = 0;
- do
+ //read required bytes to have full CoAP header
+ memcpy(svritem->data + svritem->len, inBuffer, copyLen);
+ svritem->len += copyLen;
+ inBuffer += copyLen;
+ inLen -= copyLen;
+
+ //if not enough data received - read them on next CAFillHeader() call
+ if (svritem->len < headerLen)
{
- ssize_t recvLen = recv(svritem->u4tcp.fd, recvBuffer + totalReceivedLen,
- bufSize - totalReceivedLen, 0);
- if (recvLen <= 0)
- {
- if(EWOULDBLOCK != errno)
- {
- OIC_LOG_V(ERROR, TAG, "Recvfrom failed %s", strerror(errno));
- goto exit;
- }
- // if received data length is zero, we are breaking loop.
- // because we use non-blocking socket to receive data from remote device.
- if (!totalReceivedLen)
- {
- break;
- }
- continue;
- }
+ *data = inBuffer;
+ *dataLength = inLen;
+ OIC_LOG(DEBUG, TAG, "CoAP header received partially. Wait for rest header data");
+ return CA_STATUS_OK;
+ }
- totalReceivedLen += recvLen;
- if (!isHeaderChecked && totalReceivedLen)
+ //calculate CoAP message length
+ svritem->totalLen = CAGetTotalLengthFromHeader(svritem->data);
+
+ // allocate required memory
+ unsigned char *buffer = OICRealloc(svritem->data, svritem->totalLen);
+ if (NULL == buffer)
+ {
+ OIC_LOG(ERROR, TAG, "OICRealloc - out of memory");
+ return CA_MEMORY_ALLOC_FAILED;
+ }
+ svritem->data = buffer;
+ }
+
+ // PAYLOAD
+ if (inLen > 0)
+ {
+ // read required bytes to have full CoAP payload
+ copyLen = svritem->totalLen - svritem->len;
+ if (inLen < copyLen)
+ {
+ copyLen = inLen;
+ }
+
+ //read required bytes to have full CoAP header
+ memcpy(svritem->data + svritem->len, inBuffer, copyLen);
+ svritem->len += copyLen;
+ inBuffer += copyLen;
+ inLen -= copyLen;
+ }
+
+ *data = inBuffer;
+ *dataLength = inLen;
+
+ OIC_LOG_V(DEBUG, TAG, "after-datalength : %u", *dataLength);
+ OIC_LOG_V(DEBUG, TAG, "Out %s", __func__);
+ return CA_STATUS_OK;
+}
+
+static void CAReceiveMessage(int fd)
+{
+ CAResult_t res = CA_STATUS_OK;
+
+ //get remote device information from file descriptor.
+ size_t index = 0;
+ CATCPSessionInfo_t *svritem = CAGetSessionInfoFromFD(fd, &index);
+ if (!svritem)
+ {
+ OIC_LOG(ERROR, TAG, "there is no connection information in list");
+ return;
+ }
+
+ // read data
+ int len = 0;
+
+ if (svritem->sep.endpoint.flags & CA_SECURE)
+ {
+ svritem->protocol = TLS;
+
+#ifdef __WITH_TLS__
+ size_t nbRead = 0;
+ size_t tlsLength = 0;
+
+ if (TLS_HEADER_SIZE > svritem->tlsLen)
+ {
+ nbRead = TLS_HEADER_SIZE - svritem->tlsLen;
+ }
+ else
+ {
+ //[3][4] bytes in tls header are tls payload length
+ tlsLength = TLS_HEADER_SIZE +
+ (size_t)((svritem->tlsdata[3] << 8) | svritem->tlsdata[4]);
+ OIC_LOG_V(DEBUG, TAG, "total tls length = %u", tlsLength);
+ if (tlsLength > sizeof(svritem->tlsdata))
{
- coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
- ((unsigned char *)recvBuffer)[0] >> 4);
- size_t headerLen = coap_get_tcp_header_length_for_transport(transport);
- if (totalReceivedLen >= headerLen)
+ OIC_LOG_V(ERROR, TAG, "total tls length is too big (buffer size : %u)",
+ sizeof(svritem->tlsdata));
+ if (CA_STATUS_OK != CAcloseSslConnection(&svritem->sep.endpoint))
{
- // get actual data length from coap over tcp header
- totalLen = CAGetTotalLengthFromHeader((unsigned char *) recvBuffer);
- bufSize = totalLen;
- unsigned char *newBuf = OICRealloc(recvBuffer, bufSize);
- if (NULL == newBuf)
- {
- OIC_LOG(ERROR, TAG, "out of memory");
- goto exit;
- }
- recvBuffer = newBuf;
- isHeaderChecked = true;
+ OIC_LOG(ERROR, TAG, "Failed to close TLS session");
}
+ CASearchAndDeleteTCPSession(&(svritem->sep.endpoint));
+ return;
}
- if (totalLen == totalReceivedLen)
- {
- CAEndpoint_t ep = { .adapter = CA_ADAPTER_TCP,
- .port = svritem->u4tcp.port };
- strncpy(ep.addr, svritem->addr, sizeof(ep.addr));
+ nbRead = tlsLength - svritem->tlsLen;
+ }
- if (g_packetReceivedCallback)
- {
- g_packetReceivedCallback(&ep, recvBuffer, totalLen);
- }
- OIC_LOG_V(DEBUG, TAG, "received data len:%d", totalLen);
- break;
+ len = recv(fd, svritem->tlsdata + svritem->tlsLen, nbRead, 0);
+ if (len < 0)
+ {
+ OIC_LOG_V(ERROR, TAG, "recv failed %s", strerror(errno));
+ res = CA_RECEIVE_FAILED;
+ }
+ else if (0 == len)
+ {
+ OIC_LOG(INFO, TAG, "Received disconnect from peer. Close connection");
+ svritem->state = DISCONNECTED;
+ res = CA_DESTINATION_DISCONNECTED;
+ }
+ else
+ {
+ svritem->tlsLen += len;
+ OIC_LOG_V(DEBUG, TAG, "nb_read : %u bytes , recv() : %d bytes, svritem->tlsLen : %u bytes",
+ nbRead, len, svritem->tlsLen);
+ if (tlsLength > 0 && tlsLength == svritem->tlsLen)
+ {
+ //when successfully read data - pass them to callback.
+ res = CAdecryptSsl(&svritem->sep, (uint8_t *)svritem->tlsdata, svritem->tlsLen);
+ svritem->tlsLen = 0;
+ OIC_LOG_V(INFO, TAG, "%s: CAdecryptSsl returned %d", __func__, res);
}
- } while (!totalLen || totalLen > totalReceivedLen);
+ }
+#endif
- OICFree(recvBuffer);
}
+ else
+ {
+ svritem->protocol = COAP;
- return CA_STATUS_OK;
+ // svritem->tlsdata can also be used as receiving buffer in case of raw tcp
+ len = recv(fd, svritem->tlsdata, sizeof(svritem->tlsdata), 0);
+ if (len < 0)
+ {
+ OIC_LOG_V(ERROR, TAG, "recv failed %s", strerror(errno));
+ res = CA_RECEIVE_FAILED;
+ }
+ else if (0 == len)
+ {
+ OIC_LOG(INFO, TAG, "Received disconnect from peer. Close connection");
+ res = CA_DESTINATION_DISCONNECTED;
+ }
+ else
+ {
+ OIC_LOG_V(DEBUG, TAG, "recv() : %d bytes", len);
+ //when successfully read data - pass them to callback.
+ if (g_packetReceivedCallback)
+ {
+ res = g_packetReceivedCallback(&svritem->sep, svritem->tlsdata, len);
+ }
+ }
+ }
-exit:
- ca_mutex_lock(g_mutexObjectList);
- close(svritem->u4tcp.fd);
- u_arraylist_remove(caglobals.tcp.svrlist, i);
- ca_mutex_unlock(g_mutexObjectList);
- OICFree(recvBuffer);
- return CA_STATUS_FAILED;
+ //disconnect session and clean-up data if any error occurs
+ if (res != CA_STATUS_OK)
+ {
+#ifdef __WITH_TLS__
+ if (CA_STATUS_OK != CAcloseSslConnection(&svritem->sep.endpoint))
+ {
+ OIC_LOG(ERROR, TAG, "Failed to close TLS session");
+ }
+#endif
+ CASearchAndDeleteTCPSession(&(svritem->sep.endpoint));
+ return;
+ }
}
-// TODO: resolving duplication.
-static int CASetNonblocking(int fd)
+static ssize_t CAWakeUpForReadFdsUpdate(const char *host)
{
- int fl = fcntl(fd, F_GETFL);
- if (fl == -1)
+ if (caglobals.tcp.connectionFds[1] != -1)
{
- OIC_LOG_V(ERROR, TAG, "Failed to get existing flags, Error code: %s",
- strerror(errno));
+ ssize_t len = 0;
+ do
+ {
+ len = write(caglobals.tcp.connectionFds[1], host, strlen(host));
+ } while ((len == -1) && (errno == EINTR));
+
+ if ((len == -1) && (errno != EINTR) && (errno != EPIPE))
+ {
+ OIC_LOG_V(DEBUG, TAG, "write failed: %s", strerror(errno));
+ }
+ return len;
}
- else if ((fl & O_NONBLOCK) != O_NONBLOCK)
+ return -1;
+}
+
+static CAResult_t CATCPConvertNameToAddr(int family, const char *host, uint16_t port,
+ struct sockaddr_storage *sockaddr)
+{
+ struct addrinfo *addrs = NULL;
+ struct addrinfo hints = { .ai_family = family,
+ .ai_protocol = IPPROTO_TCP,
+ .ai_socktype = SOCK_STREAM,
+ .ai_flags = AI_NUMERICHOST };
+
+ int r = getaddrinfo(host, NULL, &hints, &addrs);
+ if (r)
{
- fl = fcntl(fd, F_SETFL, fl | O_NONBLOCK);
- if (fl == -1)
+ if (EAI_SYSTEM == r)
+ {
+ OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: errno %s", strerror(errno));
+ }
+ else
{
- OIC_LOG_V(ERROR, TAG, "Failed to set non-blocking mode, Error code: %s",
- strerror(errno));
+ OIC_LOG_V(ERROR, TAG, "getaddrinfo failed: %s", gai_strerror(r));
}
+ freeaddrinfo(addrs);
+ return CA_STATUS_FAILED;
}
-
- return fl;
+ // assumption: in this case, getaddrinfo will only return one addrinfo
+ // or first is the one we want.
+ if (addrs[0].ai_family == AF_INET6)
+ {
+ memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in6));
+ ((struct sockaddr_in6 *)sockaddr)->sin6_port = htons(port);
+ }
+ else
+ {
+ memcpy(sockaddr, addrs[0].ai_addr, sizeof (struct sockaddr_in));
+ ((struct sockaddr_in *)sockaddr)->sin_port = htons(port);
+ }
+ freeaddrinfo(addrs);
+ return CA_STATUS_OK;
}
-static int CATCPCreateSocket(int family, CATCPServerInfo_t *TCPServerInfo)
+static CAResult_t CATCPCreateSocket(int family, CATCPSessionInfo_t *svritem)
{
- // create tcp socket
+ VERIFY_NON_NULL(svritem, TAG, "svritem is NULL");
+
+ OIC_LOG_V(INFO, TAG, "try to connect with [%s:%u]",
+ svritem->sep.endpoint.addr, svritem->sep.endpoint.port);
+
+ // #1. create tcp socket.
int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (-1 == fd)
{
OIC_LOG_V(ERROR, TAG, "create socket failed: %s", strerror(errno));
- goto exit;
- }
-
- // set non-blocking socket
- if (-1 == CASetNonblocking(fd))
- {
- goto exit;
+ return CA_SOCKET_OPERATION_FAILED;
}
+ svritem->fd = fd;
+ // #2. convert address from string to binary.
struct sockaddr_storage sa = { .ss_family = family };
- CAConvertNameToAddr(TCPServerInfo->addr, TCPServerInfo->u4tcp.port, &sa);
- socklen_t socklen = sizeof (struct sockaddr_in);
-
- // connect to TCP server
- int ret = connect(fd, (struct sockaddr *)&sa, socklen);
- if (0 == ret)
+ CAResult_t res = CATCPConvertNameToAddr(family, svritem->sep.endpoint.addr,
+ svritem->sep.endpoint.port, &sa);
+ if (CA_STATUS_OK != res)
{
- OIC_LOG(DEBUG, TAG, "connect socket success");
+ OIC_LOG(ERROR, TAG, "convert name to sockaddr failed");
+ return CA_SOCKET_OPERATION_FAILED;
}
- else if (EINPROGRESS == errno)
- {
- int error = 0;
- socklen_t len = sizeof(error);
- if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &len) < 0)
- {
- OIC_LOG(ERROR, TAG, "getsockopt() error");
- goto exit;
- }
- if (error)
+ // #3. set socket length.
+ socklen_t socklen = 0;
+ if (sa.ss_family == AF_INET6)
+ {
+ struct sockaddr_in6 *sock6 = (struct sockaddr_in6 *)&sa;
+ if (!sock6->sin6_scope_id)
{
- if (ECONNREFUSED == error)
- {
- OIC_LOG(ERROR, TAG, "connection refused");
- goto exit;
- }
- OIC_LOG(ERROR, TAG, "failed to connect socket");
- goto exit;
+ sock6->sin6_scope_id = svritem->sep.endpoint.ifindex;
}
- OIC_LOG(DEBUG, TAG, "connect socket success");
+ socklen = sizeof(struct sockaddr_in6);
}
else
{
- OIC_LOG(ERROR, TAG, "failed to connect socket");
- goto exit;
+ socklen = sizeof(struct sockaddr_in);
}
- return fd;
+ // #4. connect to remote server device.
+ if (connect(fd, (struct sockaddr *)&sa, socklen) < 0)
+ {
+ OIC_LOG_V(ERROR, TAG, "failed to connect socket, %s", strerror(errno));
+ CALogSendStateInfo(svritem->sep.endpoint.adapter, svritem->sep.endpoint.addr,
+ svritem->sep.endpoint.port, 0, false, strerror(errno));
+ return CA_SOCKET_OPERATION_FAILED;
+ }
-exit:
- if (fd >= 0)
+ OIC_LOG(INFO, TAG, "connect socket success");
+ svritem->state = CONNECTED;
+ CHECKFD(svritem->fd);
+ ssize_t len = CAWakeUpForReadFdsUpdate(svritem->sep.endpoint.addr);
+ if (-1 == len)
{
- close(fd);
+ OIC_LOG(ERROR, TAG, "wakeup receive thread failed");
+ return CA_SOCKET_OPERATION_FAILED;
}
- return -1;
+ return CA_STATUS_OK;
}
-static void CAAcceptHandler(void *data)
+static CASocketFd_t CACreateAcceptSocket(int family, CASocket_t *sock)
{
- (void)data;
- OIC_LOG(DEBUG, TAG, "IN - CAAcceptHandler");
+ VERIFY_NON_NULL_RET(sock, TAG, "sock", -1);
- int reuse = 1;
- struct sockaddr_in server = { .sin_addr.s_addr = INADDR_ANY,
- .sin_family = AF_INET,
- .sin_port = htons(SERVER_PORT) };
+ if (OC_INVALID_SOCKET != sock->fd)
+ {
+ OIC_LOG(DEBUG, TAG, "accept socket created already");
+ return sock->fd;
+ }
- g_acceptServerFD = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (g_acceptServerFD < 0)
+ socklen_t socklen = 0;
+ struct sockaddr_storage server = { .ss_family = family };
+
+ int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
+ if (OC_INVALID_SOCKET == fd)
{
OIC_LOG(ERROR, TAG, "Failed to create socket");
goto exit;
}
- if (-1 == setsockopt(g_acceptServerFD, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)))
+ if (family == AF_INET6)
+ {
+ // the socket is restricted to sending and receiving IPv6 packets only.
+ int on = 1;
+//TODO: enable once IPv6 is supported
+#ifndef __TIZENRT__
+ if (-1 == setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof (on)))
+ {
+ OIC_LOG_V(ERROR, TAG, "IPV6_V6ONLY failed: %s", strerror(errno));
+ goto exit;
+ }
+#endif
+ ((struct sockaddr_in6 *)&server)->sin6_port = htons(sock->port);
+ socklen = sizeof (struct sockaddr_in6);
+ }
+ else
+ {
+ ((struct sockaddr_in *)&server)->sin_port = htons(sock->port);
+ socklen = sizeof (struct sockaddr_in);
+ }
+
+ int reuse = 1;
+ if (-1 == setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse)))
{
OIC_LOG(ERROR, TAG, "setsockopt SO_REUSEADDR");
goto exit;
}
- int serverlen = sizeof(server);
- if (-1 == bind(g_acceptServerFD, (struct sockaddr *)&server, serverlen))
+ if (-1 == bind(fd, (struct sockaddr *)&server, socklen))
{
- OIC_LOG(ERROR, TAG, "bind() error");
+ OIC_LOG_V(ERROR, TAG, "bind socket failed: %s", strerror(errno));
goto exit;
}
- if (listen(g_acceptServerFD, caglobals.tcp.listenBacklog) != 0)
+ if (listen(fd, caglobals.tcp.listenBacklog) != 0)
{
OIC_LOG(ERROR, TAG, "listen() error");
goto exit;
}
- struct pollfd acceptServerFD = { .fd = g_acceptServerFD,
- .events = POLLIN };
-
- while (!caglobals.tcp.terminate)
+ if (sock->port) // use the given port
{
- int pollState = poll(&acceptServerFD, 1, caglobals.tcp.selectTimeout);
- if (pollState < 0)
+ int on = 1;
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, OPTVAL_T(&on), sizeof (on)))
{
- OIC_LOG_V(FATAL, TAG, "polling error %s", strerror(errno));
- goto exit;
+ OIC_LOG_V(ERROR, TAG, "SO_REUSEADDR failed: %s", strerror(errno));
+ close(fd);
+ return OC_INVALID_SOCKET;
}
- else if (!pollState)
+ }
+ else // return the assigned port
+ {
+ if (-1 == getsockname(fd, (struct sockaddr *)&server, &socklen))
{
- continue;
+ OIC_LOG_V(ERROR, TAG, "getsockname failed: %s", strerror(errno));
+ goto exit;
}
+ sock->port = ntohs(family == AF_INET6 ?
+ ((struct sockaddr_in6 *)&server)->sin6_port :
+ ((struct sockaddr_in *)&server)->sin_port);
+ }
- if (acceptServerFD.revents & POLLIN)
- {
- struct sockaddr_storage clientaddr;
- socklen_t clientlen = sizeof (struct sockaddr_in);
-
- int sockfd = accept(g_acceptServerFD, (struct sockaddr *)&clientaddr, &clientlen);
- if (sockfd != -1)
- {
- CATCPServerInfo_t *svritem = (CATCPServerInfo_t *) OICMalloc(sizeof (*svritem));
- if (!svritem)
- {
- OIC_LOG(ERROR, TAG, "Out of memory");
- close(sockfd);
- return;
- }
-
- // set non-blocking socket
- if (-1 == CASetNonblocking(sockfd))
- {
- close(sockfd);
- OICFree(svritem);
- continue;
- }
- svritem->u4tcp.fd = sockfd;
-
- CAConvertAddrToName((struct sockaddr_storage *)&clientaddr,
- (char *) &svritem->addr, &svritem->u4tcp.port);
+ return fd;
- ca_mutex_lock(g_mutexObjectList);
- bool res = u_arraylist_add(caglobals.tcp.svrlist, svritem);
- if (!res)
- {
- OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
- close(sockfd);
- OICFree(svritem);
- ca_mutex_unlock(g_mutexObjectList);
- continue;
- }
- ca_mutex_unlock(g_mutexObjectList);
- }
- }
+exit:
+ if (fd >= 0)
+ {
+ close(fd);
}
+ return OC_INVALID_SOCKET;
+}
- ca_mutex_lock(g_mutexObjectList);
- // notify the thread
- g_threadCounts--;
- if (!g_threadCounts)
+static void CAInitializePipe(int *fds)
+{
+ int ret = pipe(fds);
+// TODO: Remove temporary workaround once F_GETFD / F_SETFD support is in TizenRT
+/* Temporary workaround: By pass F_GETFD / F_SETFD */
+#ifdef __TIZENRT__
+ if (-1 == ret)
{
- ca_cond_signal(g_condObjectList);
- }
- ca_mutex_unlock(g_mutexObjectList);
+ close(fds[1]);
+ close(fds[0]);
- OIC_LOG(DEBUG, TAG, "OUT - CAAcceptHandler");
+ fds[0] = -1;
+ fds[1] = -1;
-exit:
- if (g_acceptServerFD >= 0)
- {
- close(g_acceptServerFD);
+ OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
}
- ca_mutex_lock(g_mutexObjectList);
- g_threadCounts--;
- if (!g_threadCounts)
+#else
+ if (-1 != ret)
{
- ca_cond_signal(g_condObjectList);
+ ret = fcntl(fds[0], F_GETFD);
+ if (-1 != ret)
+ {
+ ret = fcntl(fds[0], F_SETFD, ret|FD_CLOEXEC);
+ }
+ if (-1 != ret)
+ {
+ ret = fcntl(fds[1], F_GETFD);
+ }
+ if (-1 != ret)
+ {
+ ret = fcntl(fds[1], F_SETFD, ret|FD_CLOEXEC);
+ }
+ if (-1 == ret)
+ {
+ close(fds[1]);
+ close(fds[0]);
+
+ fds[0] = -1;
+ fds[1] = -1;
+
+ OIC_LOG_V(ERROR, TAG, "pipe failed: %s", strerror(errno));
+ }
}
- ca_mutex_unlock(g_mutexObjectList);
- return;
+#endif
+}
+
+#define NEWSOCKET(FAMILY, NAME) \
+ caglobals.tcp.NAME.fd = CACreateAcceptSocket(FAMILY, &caglobals.tcp.NAME); \
+ if (caglobals.tcp.NAME.fd == -1) \
+ { \
+ caglobals.tcp.NAME.port = 0; \
+ caglobals.tcp.NAME.fd = CACreateAcceptSocket(FAMILY, &caglobals.tcp.NAME); \
+ } \
+ CHECKFD(caglobals.tcp.NAME.fd);
+
+void CATCPInitializeSocket()
+{
+#ifndef __WITH_TLS__
+ NEWSOCKET(AF_INET, ipv4);
+#else
+ NEWSOCKET(AF_INET, ipv4s);
+#endif
+
+//TODO Enable once TizenRT supports IPv6
+#ifndef __TIZENRT__
+#ifndef __WITH_TLS__
+ NEWSOCKET(AF_INET6, ipv6);
+#else
+ NEWSOCKET(AF_INET6, ipv6s);
+#endif
+#endif
+#ifndef __WITH_TLS__
+ OIC_LOG_V(DEBUG, TAG, "IPv4 socket fd=%d, port=%d",
+ caglobals.tcp.ipv4.fd, caglobals.tcp.ipv4.port);
+ OIC_LOG_V(DEBUG, TAG, "IPv6 socket fd=%d, port=%d",
+ caglobals.tcp.ipv6.fd, caglobals.tcp.ipv6.port);
+#else
+ OIC_LOG_V(DEBUG, TAG, "IPv4 secure socket fd=%d, port=%d",
+ caglobals.tcp.ipv4s.fd, caglobals.tcp.ipv4s.port);
+ OIC_LOG_V(DEBUG, TAG, "IPv6 secure socket fd=%d, port=%d",
+ caglobals.tcp.ipv6s.fd, caglobals.tcp.ipv6s.port);
+#endif
}
CAResult_t CATCPStartServer(const ca_thread_pool_t threadPool)
{
+ oc_mutex_lock(g_mutexObjectList);
if (caglobals.tcp.started)
{
+ oc_mutex_unlock(g_mutexObjectList);
+ OIC_LOG(INFO, TAG, "Adapter is started already");
return CA_STATUS_OK;
}
+ g_threadPool = threadPool;
+
if (!caglobals.tcp.ipv4tcpenabled)
{
caglobals.tcp.ipv4tcpenabled = true; // only needed to run CA tests
}
-
- CAResult_t res = CATCPCreateMutex();
- if (CA_STATUS_OK != res)
- {
- OIC_LOG(ERROR, TAG, "failed to create mutex");
- return res;
- }
-
- res = CATCPCreateCond();
- if (CA_STATUS_OK != res)
+ if (!caglobals.tcp.ipv6tcpenabled)
{
- OIC_LOG(ERROR, TAG, "failed to create cond");
- return res;
+ caglobals.tcp.ipv6tcpenabled = true; // only needed to run CA tests
}
- ca_mutex_lock(g_mutexObjectList);
+ caglobals.tcp.terminate = false;
if (!caglobals.tcp.svrlist)
{
caglobals.tcp.svrlist = u_arraylist_create();
}
- ca_mutex_unlock(g_mutexObjectList);
-
- caglobals.tcp.terminate = false;
- res = ca_thread_pool_add_task(threadPool, CAAcceptHandler, NULL);
- if (CA_STATUS_OK != res)
+ if (caglobals.server)
{
- OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
- return res;
+ CATCPInitializeSocket();
}
- OIC_LOG(DEBUG, TAG, "CAAcceptHandler thread started successfully.");
-
- res = ca_thread_pool_add_task(threadPool, CAReceiveHandler, NULL);
+#ifndef __TIZENRT__
+ // create pipe for fast shutdown
+ CAInitializePipe(caglobals.tcp.shutdownFds);
+ CHECKFD(caglobals.tcp.shutdownFds[0]);
+ CHECKFD(caglobals.tcp.shutdownFds[1]);
+#endif
+ // create pipe for connection event
+ CAInitializePipe(caglobals.tcp.connectionFds);
+ CHECKFD(caglobals.tcp.connectionFds[0]);
+ CHECKFD(caglobals.tcp.connectionFds[1]);
+
+ CAResult_t res = CA_STATUS_OK;
+#ifndef __TIZENRT__
+ res = ca_thread_pool_add_task(g_threadPool, CAReceiveHandler, NULL, &g_recvThreadId);
+#else
+ res = ca_thread_pool_add_task(g_threadPool, CAReceiveHandler, NULL, &g_recvThreadId,
+ "IoT_TCPReceive", CONFIG_IOTIVITY_TCPRECEIVE_PTHREAD_STACKSIZE);
+#endif
if (CA_STATUS_OK != res)
{
+ g_recvThreadId = 0;
+ oc_mutex_unlock(g_mutexObjectList);
OIC_LOG(ERROR, TAG, "thread_pool_add_task failed");
+ CATCPStopServer();
return res;
}
- OIC_LOG(DEBUG, TAG, "CAReceiveHandler thread started successfully.");
caglobals.tcp.started = true;
+ oc_mutex_unlock(g_mutexObjectList);
- g_threadCounts = CA_TCP_DEFAULT_THREAD_COUNTS;
-
+ OIC_LOG(INFO, TAG, "CAReceiveHandler thread started successfully.");
return CA_STATUS_OK;
}
void CATCPStopServer()
{
- OIC_LOG(DEBUG, TAG, "IN");
-
- // mutex lock
- ca_mutex_lock(g_mutexObjectList);
+ oc_mutex_lock(g_mutexObjectList);
+ if (caglobals.tcp.terminate)
+ {
+ oc_mutex_unlock(g_mutexObjectList);
+ OIC_LOG(INFO, TAG, "Adapter is not enabled");
+ return;
+ }
- // set terminate flag
+ // set terminate flag.
caglobals.tcp.terminate = true;
- caglobals.tcp.started = false;
-
- ca_cond_wait(g_condObjectList, g_mutexObjectList);
- // mutex unlock
- ca_mutex_unlock(g_mutexObjectList);
+ // close accept socket.
+#ifndef __WITH_TLS__
+ CLOSE_SOCKET(ipv4);
+ CLOSE_SOCKET(ipv6);
+#else
+ CLOSE_SOCKET(ipv4s);
+ CLOSE_SOCKET(ipv6s);
+#endif
- if (-1 != g_acceptServerFD)
+ close(caglobals.tcp.connectionFds[1]);
+ close(caglobals.tcp.connectionFds[0]);
+ caglobals.tcp.connectionFds[1] = OC_INVALID_SOCKET;
+ caglobals.tcp.connectionFds[0] = OC_INVALID_SOCKET;
+#ifndef __TIZENRT__
+ if (caglobals.tcp.shutdownFds[1] != OC_INVALID_SOCKET)
+ {
+ close(caglobals.tcp.shutdownFds[1]);
+ caglobals.tcp.shutdownFds[1] = OC_INVALID_SOCKET;
+ // receive thread will stop immediately
+ }
+#endif
+ if (caglobals.tcp.started)
+ {
+ oc_cond_wait(g_condObjectList, g_mutexObjectList);
+ caglobals.tcp.started = false;
+ }
+#ifndef __TIZENRT__
+ if (caglobals.tcp.shutdownFds[0] != OC_INVALID_SOCKET)
+ {
+ close(caglobals.tcp.shutdownFds[0]);
+ caglobals.tcp.shutdownFds[0] = OC_INVALID_SOCKET;
+ }
+#endif
+ CAResult_t res = ca_thread_pool_remove_task(g_threadPool, g_recvThreadId);
+ if (CA_STATUS_OK != res)
{
- close(g_acceptServerFD);
- g_acceptServerFD = -1;
+ OIC_LOG(ERROR, TAG, "ca_thread_pool_remove_task failed");
}
+ g_recvThreadId = 0;
+ oc_mutex_unlock(g_mutexObjectList);
CATCPDisconnectAll();
- CATCPDestroyMutex();
- CATCPDestroyCond();
+ sleep(1);
- OIC_LOG(DEBUG, TAG, "OUT");
+ OIC_LOG(INFO, TAG, "Adapter terminated successfully");
}
void CATCPSetPacketReceiveCallback(CATCPPacketReceivedCallback callback)
{
- OIC_LOG(DEBUG, TAG, "IN");
-
g_packetReceivedCallback = callback;
+}
- OIC_LOG(DEBUG, TAG, "OUT");
+void CATCPSetConnectionChangedCallback(CATCPConnectionHandleCallback connHandler)
+{
+ g_connectionCallback = connHandler;
}
-static size_t CACheckPayloadLength(const void *data, size_t dlen)
+size_t CACheckPayloadLengthFromHeader(const void *data, size_t dlen)
{
- coap_transport_type transport = coap_get_tcp_header_type_from_initbyte(
+ VERIFY_NON_NULL_RET(data, TAG, "data", -1);
+
+ coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(
((unsigned char *)data)[0] >> 4);
- coap_pdu_t *pdu = coap_new_pdu(transport, dlen);
+ coap_pdu_t *pdu = coap_new_pdu2(transport, dlen);
if (!pdu)
{
OIC_LOG(ERROR, TAG, "outpdu is null");
return 0;
}
- int ret = coap_pdu_parse((unsigned char *) data, dlen, pdu, transport);
+ int ret = coap_pdu_parse2((unsigned char *) data, dlen, pdu, transport);
if (0 >= ret)
{
OIC_LOG(ERROR, TAG, "pdu parse failed");
size_t payloadLen = 0;
size_t headerSize = coap_get_tcp_header_length_for_transport(transport);
- OIC_LOG_V(DEBUG, TAG, "headerSize : %d, pdu length : %d",
+ OIC_LOG_V(DEBUG, TAG, "headerSize : %zu, pdu length : %d",
headerSize, pdu->length);
if (pdu->length > headerSize)
{
return payloadLen;
}
-static void sendData(const CAEndpoint_t *endpoint,
- const void *data, size_t dlen)
+static ssize_t sendData(const CAEndpoint_t *endpoint, const void *data,
+ size_t dlen, const char *fam)
{
- // #1. get TCP Server object from list
- uint32_t index = 0;
- CATCPServerInfo_t *svritem = CAGetTCPServerInfoFromList(endpoint->addr, endpoint->port,
- &index);
- if (!svritem)
+ OIC_LOG_V(INFO, TAG, "The length of data that needs to be sent is %zu bytes", dlen);
+
+ // #1. find a session info from list.
+ CASocketFd_t sockFd = CAGetSocketFDFromEndpoint(endpoint);
+ if (OC_INVALID_SOCKET == sockFd)
{
- // if there is no connection info, connect to TCP Server
- svritem = CAConnectToTCPServer(endpoint);
- if (!svritem)
+ // if there is no connection info, connect to remote device.
+ sockFd = CAConnectTCPSession(endpoint);
+ if (OC_INVALID_SOCKET == sockFd)
{
- OIC_LOG(ERROR, TAG, "Failed to create TCP server object");
- g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
- return;
+ OIC_LOG(ERROR, TAG, "Failed to create tcp session object");
+ return -1;
}
}
- // #2. check payload length
- size_t payloadLen = CACheckPayloadLength(data, dlen);
- // if payload length is zero, disconnect from TCP server
- if (!payloadLen)
- {
- OIC_LOG(DEBUG, TAG, "payload length is zero, disconnect from remote device");
- CADisconnectFromTCPServer(endpoint);
- return;
- }
-
- // #3. check connection state
- if (svritem->u4tcp.fd < 0)
- {
- // if file descriptor value is wrong, remove TCP Server info from list
- OIC_LOG(ERROR, TAG, "Failed to connect to TCP server");
- CADisconnectFromTCPServer(endpoint);
- g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
- return;
- }
-
- // #4. send data to TCP Server
+ // #2. send data to remote device.
ssize_t remainLen = dlen;
do
{
- ssize_t len = send(svritem->u4tcp.fd, data, remainLen, 0);
+#ifdef MSG_NOSIGNAL
+ ssize_t len = send(sockFd, data, remainLen, MSG_NOSIGNAL);
+#else
+ ssize_t len = send(sockFd, data, remainLen, 0);
+#endif
if (-1 == len)
{
if (EWOULDBLOCK != errno)
{
OIC_LOG_V(ERROR, TAG, "unicast ipv4tcp sendTo failed: %s", strerror(errno));
- g_TCPErrorHandler(endpoint, data, dlen, CA_SEND_FAILED);
- return;
+ CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
+ len, false, strerror(errno));
+ return len;
}
continue;
}
remainLen -= len;
} while (remainLen > 0);
- OIC_LOG_V(INFO, TAG, "unicast ipv4tcp sendTo is successful: %d bytes", dlen);
+#ifndef TB_LOG
+ (void)fam;
+#endif
+ OIC_LOG_V(INFO, TAG, "unicast %stcp sendTo is successful: %zu bytes", fam, dlen);
+ CALogSendStateInfo(endpoint->adapter, endpoint->addr, endpoint->port,
+ dlen, true, NULL);
+ return dlen;
}
-void CATCPSendData(CAEndpoint_t *endpoint, const void *data, uint32_t datalen,
- bool isMulticast)
+ssize_t CATCPSendData(CAEndpoint_t *endpoint, const void *data, size_t datalen)
{
- VERIFY_NON_NULL_VOID(endpoint, TAG, "endpoint is NULL");
- VERIFY_NON_NULL_VOID(data, TAG, "data is NULL");
+ VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", -1);
+ VERIFY_NON_NULL_RET(data, TAG, "data is NULL", -1);
- if (!isMulticast)
+ if (caglobals.tcp.ipv6tcpenabled && (endpoint->flags & CA_IPV6))
{
- if (caglobals.tcp.ipv4tcpenabled && (endpoint->adapter & CA_ADAPTER_TCP))
- {
- sendData(endpoint, data, datalen);
- }
+ return sendData(endpoint, data, datalen, "ipv6");
+ }
+ if (caglobals.tcp.ipv4tcpenabled && (endpoint->flags & CA_IPV4))
+ {
+ return sendData(endpoint, data, datalen, "ipv4");
}
+
+ OIC_LOG(ERROR, TAG, "Not supported transport flags");
+ return -1;
}
CAResult_t CAGetTCPInterfaceInformation(CAEndpoint_t **info, uint32_t *size)
{
- OIC_LOG(DEBUG, TAG, "IN");
-
VERIFY_NON_NULL(info, TAG, "info is NULL");
VERIFY_NON_NULL(size, TAG, "size is NULL");
return CA_NOT_SUPPORTED;
}
-CATCPServerInfo_t *CAConnectToTCPServer(const CAEndpoint_t *TCPServerInfo)
+CASocketFd_t CAConnectTCPSession(const CAEndpoint_t *endpoint)
{
- VERIFY_NON_NULL_RET(TCPServerInfo, TAG, "TCPServerInfo is NULL", NULL);
+ VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", OC_INVALID_SOCKET);
// #1. create TCP server object
- CATCPServerInfo_t *svritem = (CATCPServerInfo_t *) OICMalloc(sizeof (*svritem));
+ CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) OICCalloc(1, sizeof (*svritem));
if (!svritem)
{
OIC_LOG(ERROR, TAG, "Out of memory");
- return NULL;
- }
- memcpy(svritem->addr, TCPServerInfo->addr, sizeof(svritem->addr));
- svritem->u4tcp.port = TCPServerInfo->port;
-
- // #2. create the socket and connect to TCP server
- if (caglobals.tcp.ipv4tcpenabled)
- {
- svritem->u4tcp.fd = CATCPCreateSocket(AF_INET, svritem);
- if (-1 == svritem->u4tcp.fd)
- {
- OICFree(svritem);
- return NULL;
- }
+ return OC_INVALID_SOCKET;
}
-
- // #3. add TCP connection info to list
- ca_mutex_lock(g_mutexObjectList);
+ memcpy(svritem->sep.endpoint.addr, endpoint->addr, sizeof(svritem->sep.endpoint.addr));
+ svritem->sep.endpoint.adapter = endpoint->adapter;
+ svritem->sep.endpoint.port = endpoint->port;
+ svritem->sep.endpoint.flags = endpoint->flags;
+ svritem->sep.endpoint.ifindex = endpoint->ifindex;
+ svritem->state = CONNECTING;
+ svritem->isClient = true;
+
+ // #2. add TCP connection info to list
+ oc_mutex_lock(g_mutexObjectList);
if (caglobals.tcp.svrlist)
{
bool res = u_arraylist_add(caglobals.tcp.svrlist, svritem);
if (!res)
{
OIC_LOG(ERROR, TAG, "u_arraylist_add failed.");
- close(svritem->u4tcp.fd);
+ close(svritem->fd);
OICFree(svritem);
- ca_mutex_unlock(g_mutexObjectList);
- return NULL;
+ oc_mutex_unlock(g_mutexObjectList);
+ return OC_INVALID_SOCKET;
}
}
- ca_mutex_unlock(g_mutexObjectList);
+ oc_mutex_unlock(g_mutexObjectList);
+
+ // #3. create the socket and connect to TCP server
+ int family = (svritem->sep.endpoint.flags & CA_IPV6) ? AF_INET6 : AF_INET;
+ if (CA_STATUS_OK != CATCPCreateSocket(family, svritem))
+ {
+ return OC_INVALID_SOCKET;
+ }
- return svritem;
+ // #4. pass the connection information to CA Common Layer.
+ if (g_connectionCallback)
+ {
+ g_connectionCallback(&(svritem->sep.endpoint), true, svritem->isClient);
+ }
+
+ return svritem->fd;
}
-CAResult_t CADisconnectFromTCPServer(const CAEndpoint_t *TCPServerInfo)
+CAResult_t CADisconnectTCPSession(size_t index)
{
- VERIFY_NON_NULL(TCPServerInfo, TAG, "TCP server info is NULL");
-
- // #1. get server info
- uint32_t index = 0;
- ca_mutex_lock(g_mutexObjectList);
- CATCPServerInfo_t *svritem = CAGetTCPServerInfoFromList(TCPServerInfo->addr,
- TCPServerInfo->port,
- &index);
- if (!svritem)
+ CATCPSessionInfo_t *removedData = u_arraylist_remove(caglobals.tcp.svrlist, index);
+ if (!removedData)
{
- OIC_LOG(ERROR, TAG, "there is no connection info");
- ca_mutex_unlock(g_mutexObjectList);
- return CA_STATUS_FAILED;
+ OIC_LOG(DEBUG, TAG, "there is no data to be removed");
+ return CA_STATUS_OK;
}
- // #2. close the socket and remove TCP connection info in list
- if (svritem->u4tcp.fd >= 0)
+ // close the socket and remove session info in list.
+ if (removedData->fd >= 0)
{
- close(svritem->u4tcp.fd);
+ shutdown(removedData->fd, SHUT_RDWR);
+ close(removedData->fd);
+ removedData->fd = -1;
+ removedData->state = (CONNECTED == removedData->state) ?
+ DISCONNECTED : removedData->state;
+
+ // pass the connection information to CA Common Layer.
+ if (g_connectionCallback && DISCONNECTED == removedData->state)
+ {
+ g_connectionCallback(&(removedData->sep.endpoint), false, removedData->isClient);
+ }
}
- u_arraylist_remove(caglobals.tcp.svrlist, index);
- ca_mutex_unlock(g_mutexObjectList);
+ OICFree(removedData->data);
+ removedData->data = NULL;
+ OICFree(removedData);
+ removedData = NULL;
+
+ OIC_LOG(DEBUG, TAG, "data is removed from session list");
+
+ if (caglobals.server && MAX_CONNECTION_COUNTS == u_arraylist_length(caglobals.tcp.svrlist) + 1)
+ {
+ CATCPInitializeSocket();
+ }
return CA_STATUS_OK;
}
-CATCPServerInfo_t *CAGetTCPServerInfoFromList(const char *addr, const uint16_t port,
- uint32_t *index)
+void CATCPDisconnectAll()
{
- VERIFY_NON_NULL_RET(addr, TAG, "addr is NULL", NULL);
+ oc_mutex_lock(g_mutexObjectList);
+
+ uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ for (ssize_t index = length; index > 0; index--)
+ {
+ // disconnect session from remote device.
+ CADisconnectTCPSession(index - 1);
+ }
+
+ u_arraylist_destroy(caglobals.tcp.svrlist);
+ caglobals.tcp.svrlist = NULL;
+
+ oc_mutex_unlock(g_mutexObjectList);
+
+#ifdef __WITH_TLS__
+ CAcloseSslConnectionAll(CA_ADAPTER_TCP);
+#endif
+
+}
+
+CATCPSessionInfo_t *CAGetTCPSessionInfoFromEndpoint(const CAEndpoint_t *endpoint, size_t *index)
+{
+ VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", NULL);
VERIFY_NON_NULL_RET(index, TAG, "index is NULL", NULL);
+ OIC_LOG_V(DEBUG, TAG, "Looking for [%s:%d]", endpoint->addr, endpoint->port);
+
// get connection info from list
uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ for (size_t i = 0; i < length; i++)
+ {
+ CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
+ caglobals.tcp.svrlist, i);
+ if (!svritem)
+ {
+ continue;
+ }
+
+ if (!strncmp(svritem->sep.endpoint.addr, endpoint->addr,
+ sizeof(svritem->sep.endpoint.addr))
+ && (svritem->sep.endpoint.port == endpoint->port)
+ && (svritem->sep.endpoint.flags & endpoint->flags))
+ {
+ OIC_LOG(DEBUG, TAG, "Found in session list");
+ *index = i;
+ return svritem;
+ }
+ }
+
+ OIC_LOG(DEBUG, TAG, "Session not found");
+ return NULL;
+}
+
+CASocketFd_t CAGetSocketFDFromEndpoint(const CAEndpoint_t *endpoint)
+{
+ VERIFY_NON_NULL_RET(endpoint, TAG, "endpoint is NULL", OC_INVALID_SOCKET);
+
+ OIC_LOG_V(DEBUG, TAG, "Looking for [%s:%d]", endpoint->addr, endpoint->port);
+ // get connection info from list.
+ oc_mutex_lock(g_mutexObjectList);
+ uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
for (size_t i = 0; i < length; i++)
{
- CATCPServerInfo_t *svritem = (CATCPServerInfo_t *) u_arraylist_get(
+ CATCPSessionInfo_t *svritem = (CATCPSessionInfo_t *) u_arraylist_get(
caglobals.tcp.svrlist, i);
if (!svritem)
{
continue;
}
- if (!strncmp(svritem->addr, addr, sizeof(svritem->addr))
- && (svritem->u4tcp.port == port))
+ if (!strncmp(svritem->sep.endpoint.addr, endpoint->addr,
+ sizeof(svritem->sep.endpoint.addr))
+ && (svritem->sep.endpoint.port == endpoint->port)
+ && (svritem->sep.endpoint.flags & endpoint->flags))
+ {
+ oc_mutex_unlock(g_mutexObjectList);
+ OIC_LOG(DEBUG, TAG, "Found in session list");
+ return svritem->fd;
+ }
+ }
+
+ oc_mutex_unlock(g_mutexObjectList);
+ OIC_LOG(DEBUG, TAG, "Session not found");
+ return OC_INVALID_SOCKET;
+}
+
+CATCPSessionInfo_t *CAGetSessionInfoFromFD(int fd, size_t *index)
+{
+ oc_mutex_lock(g_mutexObjectList);
+
+ // check from the last item.
+ CATCPSessionInfo_t *svritem = NULL;
+ uint32_t length = u_arraylist_length(caglobals.tcp.svrlist);
+ for (size_t i = 0; i < length; i++)
+ {
+ svritem = (CATCPSessionInfo_t *) u_arraylist_get(caglobals.tcp.svrlist, i);
+
+ if (svritem && svritem->fd == fd)
{
*index = i;
+ oc_mutex_unlock(g_mutexObjectList);
return svritem;
}
}
+ oc_mutex_unlock(g_mutexObjectList);
+
return NULL;
}
+CAResult_t CASearchAndDeleteTCPSession(const CAEndpoint_t *endpoint)
+{
+ oc_mutex_lock(g_mutexObjectList);
+
+ CAResult_t result = CA_STATUS_OK;
+ size_t index = 0;
+ CATCPSessionInfo_t *svritem = CAGetTCPSessionInfoFromEndpoint(endpoint, &index);
+ if (svritem)
+ {
+ result = CADisconnectTCPSession(index);
+ if (CA_STATUS_OK != result)
+ {
+ OIC_LOG_V(ERROR, TAG, "CADisconnectTCPSession failed, result[%d]", result);
+ }
+ }
+
+ oc_mutex_unlock(g_mutexObjectList);
+ return result;
+}
+
+size_t CAGetTotalLengthFromHeader(const unsigned char *recvBuffer)
+{
+ OIC_LOG(DEBUG, TAG, "IN - CAGetTotalLengthFromHeader");
+
+ coap_transport_t transport = coap_get_tcp_header_type_from_initbyte(
+ ((unsigned char *)recvBuffer)[0] >> 4);
+ size_t optPaylaodLen = coap_get_length_from_header((unsigned char *)recvBuffer,
+ transport);
+ size_t headerLen = coap_get_tcp_header_length((unsigned char *)recvBuffer);
+
+ OIC_LOG_V(DEBUG, TAG, "option/paylaod length [%zu]", optPaylaodLen);
+ OIC_LOG_V(DEBUG, TAG, "header length [%zu]", headerLen);
+ OIC_LOG_V(DEBUG, TAG, "total data length [%zu]", headerLen + optPaylaodLen);
+
+ OIC_LOG(DEBUG, TAG, "OUT - CAGetTotalLengthFromHeader");
+ return headerLen + optPaylaodLen;
+}
+
void CATCPSetErrorHandler(CATCPErrorHandleCallback errorHandleCallback)
{
- g_TCPErrorHandler = errorHandleCallback;
+ g_tcpErrorHandler = errorHandleCallback;
}