/** * * \file * * \brief BSD compatible socket interface. * * Copyright (c) 2016-2017 Atmel Corporation. All rights reserved. * * \asf_license_start * * \page License * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The name of Atmel may not be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * \asf_license_stop * */ /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=* INCLUDES *=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/ #include #include "bsp/include/nm_bsp.h" #include "socket/include/socket.h" #include "driver/source/m2m_hif.h" #include "socket/source/socket_internal.h" #include "driver/include/m2m_types.h" /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=* MACROS *=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/ #define TLS_RECORD_HEADER_LENGTH (5) #define ETHERNET_HEADER_OFFSET (34) #define ETHERNET_HEADER_LENGTH (14) #define TCP_IP_HEADER_LENGTH (40) #define UDP_IP_HEADER_LENGTH (28) #define IP_PACKET_OFFSET (ETHERNET_HEADER_LENGTH + ETHERNET_HEADER_OFFSET - M2M_HIF_HDR_OFFSET) #define TCP_TX_PACKET_OFFSET (IP_PACKET_OFFSET + TCP_IP_HEADER_LENGTH) #define UDP_TX_PACKET_OFFSET (IP_PACKET_OFFSET + UDP_IP_HEADER_LENGTH) #define SSL_TX_PACKET_OFFSET (TCP_TX_PACKET_OFFSET + TLS_RECORD_HEADER_LENGTH) #define SOCKET_REQUEST(reqID, reqArgs, reqSize, reqPayload, reqPayloadSize, reqPayloadOffset) \ hif_send(M2M_REQ_GROUP_IP, reqID, reqArgs, reqSize, reqPayload, reqPayloadSize, reqPayloadOffset) #define SSL_FLAGS_ACTIVE NBIT0 #define SSL_FLAGS_BYPASS_X509 NBIT1 #define SSL_FLAGS_2_RESERVD NBIT2 #define SSL_FLAGS_3_RESERVD NBIT3 #define SSL_FLAGS_CACHE_SESSION NBIT4 #define SSL_FLAGS_NO_TX_COPY NBIT5 #define SSL_FLAGS_CHECK_SNI NBIT6 /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=* PRIVATE DATA TYPES *=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/ /*! * @brief */ typedef struct{ SOCKET sock; uint8 u8Dummy; uint16 u16SessionID; }tstrCloseCmd; /*! * @brief */ typedef struct{ uint8 *pu8UserBuffer; uint16 u16UserBufferSize; uint16 u16SessionID; uint16 u16DataOffset; uint8 bIsUsed; uint8 u8SSLFlags; uint8 bIsRecvPending; }tstrSocket; /*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=* GLOBALS *=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*=*/ volatile sint8 gsockerrno; volatile tstrSocket gastrSockets[MAX_SOCKET]; volatile uint8 gu8OpCode; volatile uint16 gu16BufferSize; volatile uint16 gu16SessionID = 0; volatile tpfAppSocketCb gpfAppSocketCb; volatile tpfAppResolveCb gpfAppResolveCb; volatile uint8 gbSocketInit = 0; volatile tpfPingCb gfpPingCb; /********************************************************************* Function Socket_ReadSocketData Description Callback function used by the NMC1500 driver to deliver messages for socket layer. Return None. Author Ahmed Ezzat Version 1.0 Date 17 July 2012 *********************************************************************/ #ifndef ARDUINO NMI_API void Socket_ReadSocketData(SOCKET sock, tstrSocketRecvMsg *pstrRecv,uint8 u8SocketMsg, uint32 u32StartAddress,uint16 u16ReadCount) { if((u16ReadCount > 0) && (gastrSockets[sock].pu8UserBuffer != NULL) && (gastrSockets[sock].u16UserBufferSize > 0) && (gastrSockets[sock].bIsUsed == 1)) { uint32 u32Address = u32StartAddress; uint16 u16Read; sint16 s16Diff; uint8 u8SetRxDone; pstrRecv->u16RemainingSize = u16ReadCount; do { u8SetRxDone = 1; u16Read = u16ReadCount; s16Diff = u16Read - gastrSockets[sock].u16UserBufferSize; if(s16Diff > 0) { u8SetRxDone = 0; u16Read = gastrSockets[sock].u16UserBufferSize; } if(hif_receive(u32Address, gastrSockets[sock].pu8UserBuffer, u16Read, u8SetRxDone) == M2M_SUCCESS) { pstrRecv->pu8Buffer = gastrSockets[sock].pu8UserBuffer; pstrRecv->s16BufferSize = u16Read; pstrRecv->u16RemainingSize -= u16Read; if (gpfAppSocketCb) gpfAppSocketCb(sock,u8SocketMsg, pstrRecv); u16ReadCount -= u16Read; u32Address += u16Read; if((!gastrSockets[sock].bIsUsed) && (u16ReadCount)) { M2M_DBG("Application Closed Socket While Rx Is not Complete\n"); if(hif_receive(0, NULL, 0, 1) == M2M_SUCCESS) M2M_DBG("hif_receive Success\n"); else M2M_DBG("hif_receive Fail\n"); break; } } else { M2M_INFO("(ERRR)Current <%d>\n", u16ReadCount); break; } }while(u16ReadCount != 0); } } #endif /********************************************************************* Function m2m_ip_cb Description Callback function used by the NMC1000 driver to deliver messages for socket layer. Return None. Author Ahmed Ezzat Version 1.0 Date 17 July 2012 *********************************************************************/ #ifdef ARDUINO extern uint8 hif_receive_blocked; #endif static void m2m_ip_cb(uint8 u8OpCode, uint16 u16BufferSize,uint32 u32Address) { if((u8OpCode == SOCKET_CMD_BIND) || (u8OpCode == SOCKET_CMD_SSL_BIND)) { tstrBindReply strBindReply; tstrSocketBindMsg strBind; if(hif_receive(u32Address, (uint8*)&strBindReply, sizeof(tstrBindReply), 0) == M2M_SUCCESS) { strBind.status = strBindReply.s8Status; if(gpfAppSocketCb) gpfAppSocketCb(strBindReply.sock,SOCKET_MSG_BIND,&strBind); } } else if(u8OpCode == SOCKET_CMD_LISTEN) { tstrListenReply strListenReply; tstrSocketListenMsg strListen; if(hif_receive(u32Address, (uint8*)&strListenReply, sizeof(tstrListenReply), 0) == M2M_SUCCESS) { strListen.status = strListenReply.s8Status; if(gpfAppSocketCb) gpfAppSocketCb(strListenReply.sock,SOCKET_MSG_LISTEN, &strListen); } } else if(u8OpCode == SOCKET_CMD_ACCEPT) { tstrAcceptReply strAcceptReply; tstrSocketAcceptMsg strAccept; if(hif_receive(u32Address, (uint8*)&strAcceptReply, sizeof(tstrAcceptReply), 0) == M2M_SUCCESS) { if(strAcceptReply.sConnectedSock >= 0) { gastrSockets[strAcceptReply.sConnectedSock].u8SSLFlags = gastrSockets[strAcceptReply.sListenSock].u8SSLFlags; gastrSockets[strAcceptReply.sConnectedSock].bIsUsed = 1; gastrSockets[strAcceptReply.sConnectedSock].u16DataOffset = strAcceptReply.u16AppDataOffset - M2M_HIF_HDR_OFFSET; /* The session ID is used to distinguish different socket connections by comparing the assigned session ID to the one reported by the firmware*/ ++gu16SessionID; if(gu16SessionID == 0) ++gu16SessionID; gastrSockets[strAcceptReply.sConnectedSock].u16SessionID = gu16SessionID; M2M_DBG("Socket %d session ID = %d\r\n",strAcceptReply.sConnectedSock , gu16SessionID ); } strAccept.sock = strAcceptReply.sConnectedSock; strAccept.strAddr.sin_family = AF_INET; strAccept.strAddr.sin_port = strAcceptReply.strAddr.u16Port; strAccept.strAddr.sin_addr.s_addr = strAcceptReply.strAddr.u32IPAddr; if(gpfAppSocketCb) gpfAppSocketCb(strAcceptReply.sListenSock, SOCKET_MSG_ACCEPT, &strAccept); } } else if((u8OpCode == SOCKET_CMD_CONNECT) || (u8OpCode == SOCKET_CMD_SSL_CONNECT)) { tstrConnectReply strConnectReply; tstrSocketConnectMsg strConnMsg; if(hif_receive(u32Address, (uint8*)&strConnectReply, sizeof(tstrConnectReply), 0) == M2M_SUCCESS) { strConnMsg.sock = strConnectReply.sock; strConnMsg.s8Error = strConnectReply.s8Error; if(strConnectReply.s8Error == SOCK_ERR_NO_ERROR) { gastrSockets[strConnectReply.sock].u16DataOffset = strConnectReply.u16AppDataOffset - M2M_HIF_HDR_OFFSET; } if(gpfAppSocketCb) gpfAppSocketCb(strConnectReply.sock,SOCKET_MSG_CONNECT, &strConnMsg); } } else if(u8OpCode == SOCKET_CMD_DNS_RESOLVE) { tstrDnsReply strDnsReply; if(hif_receive(u32Address, (uint8*)&strDnsReply, sizeof(tstrDnsReply), 0) == M2M_SUCCESS) { if(gpfAppResolveCb) gpfAppResolveCb((uint8*)strDnsReply.acHostName, strDnsReply.u32HostIP); } } else if((u8OpCode == SOCKET_CMD_RECV) || (u8OpCode == SOCKET_CMD_RECVFROM) || (u8OpCode == SOCKET_CMD_SSL_RECV)) { SOCKET sock; sint16 s16RecvStatus; tstrRecvReply strRecvReply; uint16 u16ReadSize; tstrSocketRecvMsg strRecvMsg; uint8 u8CallbackMsgID = SOCKET_MSG_RECV; uint16 u16DataOffset; if(u8OpCode == SOCKET_CMD_RECVFROM) u8CallbackMsgID = SOCKET_MSG_RECVFROM; /* Read RECV REPLY data structure. */ u16ReadSize = sizeof(tstrRecvReply); if(hif_receive(u32Address, (uint8*)&strRecvReply, u16ReadSize, 0) == M2M_SUCCESS) { uint16 u16SessionID = 0; sock = strRecvReply.sock; u16SessionID = strRecvReply.u16SessionID; M2M_DBG("recv callback session ID = %d\r\n",u16SessionID); /* Reset the Socket RX Pending Flag. */ gastrSockets[sock].bIsRecvPending = 0; s16RecvStatus = NM_BSP_B_L_16(strRecvReply.s16RecvStatus); u16DataOffset = NM_BSP_B_L_16(strRecvReply.u16DataOffset); strRecvMsg.strRemoteAddr.sin_port = strRecvReply.strRemoteAddr.u16Port; strRecvMsg.strRemoteAddr.sin_addr.s_addr = strRecvReply.strRemoteAddr.u32IPAddr; if(u16SessionID == gastrSockets[sock].u16SessionID) { #ifdef ARDUINO if((s16RecvStatus > 0) && (s16RecvStatus < (sint32)u16BufferSize)) #else if((s16RecvStatus > 0) && (s16RecvStatus < u16BufferSize)) #endif { /* Skip incoming bytes until reaching the Start of Application Data. */ u32Address += u16DataOffset; #ifdef ARDUINO // Avoid calling Socket_ReadSocketData because it pulls all the socket data // from the WINC1500 at once. // // Call the callback with the recv address and recv data info. Later, // the data will be pulled from the address using hif_receive. hif_receive_blocked = 1; strRecvMsg.s16BufferSize = s16RecvStatus; strRecvMsg.pu8Buffer = u32Address; strRecvMsg.u16RemainingSize = 0; if(gpfAppSocketCb) { gpfAppSocketCb(sock,u8CallbackMsgID, &strRecvMsg); } #else /* Read the Application data and deliver it to the application callback in the given application buffer. If the buffer is smaller than the received data, the data is passed to the application in chunks according to its buffer size. */ u16ReadSize = (uint16)s16RecvStatus; Socket_ReadSocketData(sock, &strRecvMsg, u8CallbackMsgID, u32Address, u16ReadSize); #endif } else { strRecvMsg.s16BufferSize = s16RecvStatus; #ifdef ARDUINO strRecvMsg.pu8Buffer = 0; #else strRecvMsg.pu8Buffer = NULL; #endif if(gpfAppSocketCb) gpfAppSocketCb(sock,u8CallbackMsgID, &strRecvMsg); } } else { M2M_DBG("Discard recv callback %d %d \r\n",u16SessionID , gastrSockets[sock].u16SessionID); if(u16ReadSize < u16BufferSize) { if(hif_receive(0, NULL, 0, 1) == M2M_SUCCESS) M2M_DBG("hif_receive Success\n"); else #ifdef ARDUINO { #endif M2M_DBG("hif_receive Fail\n"); #ifdef ARDUINO } #endif } } } } else if((u8OpCode == SOCKET_CMD_SEND) || (u8OpCode == SOCKET_CMD_SENDTO) || (u8OpCode == SOCKET_CMD_SSL_SEND)) { SOCKET sock; sint16 s16Rcvd; tstrSendReply strReply; uint8 u8CallbackMsgID = SOCKET_MSG_SEND; if(u8OpCode == SOCKET_CMD_SENDTO) u8CallbackMsgID = SOCKET_MSG_SENDTO; if(hif_receive(u32Address, (uint8*)&strReply, sizeof(tstrSendReply), 0) == M2M_SUCCESS) { uint16 u16SessionID = 0; sock = strReply.sock; u16SessionID = strReply.u16SessionID; M2M_DBG("send callback session ID = %d\r\n",u16SessionID); s16Rcvd = NM_BSP_B_L_16(strReply.s16SentBytes); if(u16SessionID == gastrSockets[sock].u16SessionID) { if(gpfAppSocketCb) gpfAppSocketCb(sock,u8CallbackMsgID, &s16Rcvd); } else { M2M_DBG("Discard send callback %d %d \r\n",u16SessionID , gastrSockets[sock].u16SessionID); } } } else if(u8OpCode == SOCKET_CMD_PING) { tstrPingReply strPingReply; if(hif_receive(u32Address, (uint8*)&strPingReply, sizeof(tstrPingReply), 1) == M2M_SUCCESS) { gfpPingCb = (void (*)(uint32 , uint32 , uint8))(uintptr_t)strPingReply.u32CmdPrivate; if(gfpPingCb != NULL) { gfpPingCb(strPingReply.u32IPAddr, strPingReply.u32RTT, strPingReply.u8ErrorCode); } } } } /********************************************************************* Function socketInit Description Return None. Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ void socketInit(void) { if(gbSocketInit == 0) { m2m_memset((uint8*)gastrSockets, 0, MAX_SOCKET * sizeof(tstrSocket)); hif_register_cb(M2M_REQ_GROUP_IP,m2m_ip_cb); gbSocketInit = 1; gu16SessionID = 0; } } /********************************************************************* Function socketDeinit Description Return None. Author Samer Sarhan Version 1.0 Date 27 Feb 2015 *********************************************************************/ void socketDeinit(void) { m2m_memset((uint8*)gastrSockets, 0, MAX_SOCKET * sizeof(tstrSocket)); hif_register_cb(M2M_REQ_GROUP_IP, NULL); gpfAppSocketCb = NULL; gpfAppResolveCb = NULL; gbSocketInit = 0; } /********************************************************************* Function registerSocketCallback Description Return None. Author Ahmed Ezzat Versio 1.0 Date 4 June 2012 *********************************************************************/ void registerSocketCallback(tpfAppSocketCb pfAppSocketCb, tpfAppResolveCb pfAppResolveCb) { gpfAppSocketCb = pfAppSocketCb; gpfAppResolveCb = pfAppResolveCb; } /********************************************************************* Function socket Description Creates a socket. Return - Negative value for error. - ZERO or positive value as a socket ID if successful. Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ SOCKET socket(uint16 u16Domain, uint8 u8Type, uint8 u8Flags) { SOCKET sock = -1; uint8 u8SockID; uint8 u8Count; volatile tstrSocket *pstrSock; static volatile uint8 u8NextTcpSock = 0; static volatile uint8 u8NextUdpSock = 0; /* The only supported family is the AF_INET for UDP and TCP transport layer protocols. */ if(u16Domain == AF_INET) { if(u8Type == SOCK_STREAM) { for(u8Count = 0; u8Count < TCP_SOCK_MAX; u8Count ++) { u8SockID = u8NextTcpSock; pstrSock = &gastrSockets[u8NextTcpSock]; u8NextTcpSock = (u8NextTcpSock + 1) % TCP_SOCK_MAX; if(!pstrSock->bIsUsed) { sock = (SOCKET)u8SockID; break; } } } else if(u8Type == SOCK_DGRAM) { volatile tstrSocket *pastrUDPSockets = &gastrSockets[TCP_SOCK_MAX]; for(u8Count = 0; u8Count < UDP_SOCK_MAX; u8Count ++) { u8SockID = u8NextUdpSock; pstrSock = &pastrUDPSockets[u8NextUdpSock]; u8NextUdpSock = (u8NextUdpSock + 1) % UDP_SOCK_MAX; if(!pstrSock->bIsUsed) { sock = (SOCKET)(u8SockID + TCP_SOCK_MAX); break; } } } if(sock >= 0) { m2m_memset((uint8*)pstrSock, 0, sizeof(tstrSocket)); pstrSock->bIsUsed = 1; /* The session ID is used to distinguish different socket connections by comparing the assigned session ID to the one reported by the firmware*/ ++gu16SessionID; if(gu16SessionID == 0) ++gu16SessionID; pstrSock->u16SessionID = gu16SessionID; M2M_INFO("Socket %d session ID = %d\r\n",sock, gu16SessionID ); if(u8Flags & SOCKET_FLAGS_SSL) { tstrSSLSocketCreateCmd strSSLCreate; strSSLCreate.sslSock = sock; pstrSock->u8SSLFlags = SSL_FLAGS_ACTIVE | SSL_FLAGS_NO_TX_COPY; SOCKET_REQUEST(SOCKET_CMD_SSL_CREATE, (uint8*)&strSSLCreate, sizeof(tstrSSLSocketCreateCmd), 0, 0, 0); } } } return sock; } /********************************************************************* Function bind Description Request to bind a socket on a local address. Return Author Ahmed Ezzat Version 1.0 Date 5 June 2012 *********************************************************************/ sint8 bind(SOCKET sock, struct sockaddr *pstrAddr, uint8 u8AddrLen) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; if((pstrAddr != NULL) && (sock >= 0) && (gastrSockets[sock].bIsUsed == 1) && (u8AddrLen != 0)) { tstrBindCmd strBind; uint8 u8CMD = SOCKET_CMD_BIND; if(gastrSockets[sock].u8SSLFlags & SSL_FLAGS_ACTIVE) { u8CMD = SOCKET_CMD_SSL_BIND; } /* Build the bind request. */ strBind.sock = sock; m2m_memcpy((uint8 *)&strBind.strAddr, (uint8 *)pstrAddr, sizeof(tstrSockAddr)); strBind.u16SessionID = gastrSockets[sock].u16SessionID; /* Send the request. */ s8Ret = SOCKET_REQUEST(u8CMD, (uint8*)&strBind,sizeof(tstrBindCmd) , NULL , 0, 0); if(s8Ret != SOCK_ERR_NO_ERROR) { s8Ret = SOCK_ERR_INVALID; } } return s8Ret; } /********************************************************************* Function listen Description Return Author Ahmed Ezzat Version 1.0 Date 5 June 2012 *********************************************************************/ sint8 listen(SOCKET sock, uint8 backlog) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; if(sock >= 0 && (gastrSockets[sock].bIsUsed == 1)) { tstrListenCmd strListen; strListen.sock = sock; strListen.u8BackLog = backlog; strListen.u16SessionID = gastrSockets[sock].u16SessionID; s8Ret = SOCKET_REQUEST(SOCKET_CMD_LISTEN, (uint8*)&strListen, sizeof(tstrListenCmd), NULL, 0, 0); if(s8Ret != SOCK_ERR_NO_ERROR) { s8Ret = SOCK_ERR_INVALID; } } return s8Ret; } /********************************************************************* Function accept Description Return Author Ahmed Ezzat Version 1.0 Date 5 June 2012 *********************************************************************/ sint8 accept(SOCKET sock, struct sockaddr *addr, uint8 *addrlen) { #ifdef ARDUINO // Silence "unused" warning (void)addr; (void)addrlen; #endif sint8 s8Ret = SOCK_ERR_INVALID_ARG; if(sock >= 0 && (gastrSockets[sock].bIsUsed == 1) ) { s8Ret = SOCK_ERR_NO_ERROR; } return s8Ret; } /********************************************************************* Function connect Description Connect to a remote TCP Server. Return Author Ahmed Ezzat Version 1.0 Date 5 June 2012 *********************************************************************/ sint8 connect(SOCKET sock, struct sockaddr *pstrAddr, uint8 u8AddrLen) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; if((sock >= 0) && (pstrAddr != NULL) && (gastrSockets[sock].bIsUsed == 1) && (u8AddrLen != 0)) { tstrConnectCmd strConnect; uint8 u8Cmd = SOCKET_CMD_CONNECT; if((gastrSockets[sock].u8SSLFlags) & SSL_FLAGS_ACTIVE) { u8Cmd = SOCKET_CMD_SSL_CONNECT; strConnect.u8SslFlags = gastrSockets[sock].u8SSLFlags; } strConnect.sock = sock; m2m_memcpy((uint8 *)&strConnect.strAddr, (uint8 *)pstrAddr, sizeof(tstrSockAddr)); strConnect.u16SessionID = gastrSockets[sock].u16SessionID; s8Ret = SOCKET_REQUEST(u8Cmd, (uint8*)&strConnect,sizeof(tstrConnectCmd), NULL, 0, 0); if(s8Ret != SOCK_ERR_NO_ERROR) { s8Ret = SOCK_ERR_INVALID; } } return s8Ret; } /********************************************************************* Function send Description Return Author Ahmed Ezzat Version 1.0 Date 5 June 2012 *********************************************************************/ sint16 send(SOCKET sock, void *pvSendBuffer, uint16 u16SendLength, uint16 flags) { #ifdef ARDUINO (void)flags; // Silence "unused" warning #endif sint16 s16Ret = SOCK_ERR_INVALID_ARG; if((sock >= 0) && (pvSendBuffer != NULL) && (u16SendLength <= SOCKET_BUFFER_MAX_LENGTH) && (gastrSockets[sock].bIsUsed == 1)) { uint16 u16DataOffset; tstrSendCmd strSend; uint8 u8Cmd; u8Cmd = SOCKET_CMD_SEND; u16DataOffset = TCP_TX_PACKET_OFFSET; strSend.sock = sock; strSend.u16DataSize = NM_BSP_B_L_16(u16SendLength); strSend.u16SessionID = gastrSockets[sock].u16SessionID; if(sock >= TCP_SOCK_MAX) { u16DataOffset = UDP_TX_PACKET_OFFSET; } if(gastrSockets[sock].u8SSLFlags & SSL_FLAGS_ACTIVE) { u8Cmd = SOCKET_CMD_SSL_SEND; u16DataOffset = gastrSockets[sock].u16DataOffset; #ifdef ARDUINO extern uint32 nmdrv_firm_ver; if (nmdrv_firm_ver < M2M_MAKE_VERSION(19, 4, 0)) { // firmware 19.3.0 and older only works with this specific offset u16DataOffset = SSL_TX_PACKET_OFFSET; } #endif } s16Ret = SOCKET_REQUEST(u8Cmd|M2M_REQ_DATA_PKT, (uint8*)&strSend, sizeof(tstrSendCmd), pvSendBuffer, u16SendLength, u16DataOffset); if(s16Ret != SOCK_ERR_NO_ERROR) { s16Ret = SOCK_ERR_BUFFER_FULL; } } return s16Ret; } /********************************************************************* Function sendto Description Return Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ sint16 sendto(SOCKET sock, void *pvSendBuffer, uint16 u16SendLength, uint16 flags, struct sockaddr *pstrDestAddr, uint8 u8AddrLen) { #ifdef ARDUINO // Silence "unused" warning (void)flags; (void)u8AddrLen; #endif sint16 s16Ret = SOCK_ERR_INVALID_ARG; if((sock >= 0) && (pvSendBuffer != NULL) && (u16SendLength <= SOCKET_BUFFER_MAX_LENGTH) && (gastrSockets[sock].bIsUsed == 1)) { if(gastrSockets[sock].bIsUsed) { tstrSendCmd strSendTo; m2m_memset((uint8*)&strSendTo, 0, sizeof(tstrSendCmd)); strSendTo.sock = sock; strSendTo.u16DataSize = NM_BSP_B_L_16(u16SendLength); strSendTo.u16SessionID = gastrSockets[sock].u16SessionID; if(pstrDestAddr != NULL) { struct sockaddr_in *pstrAddr; pstrAddr = (void*)pstrDestAddr; strSendTo.strAddr.u16Family = pstrAddr->sin_family; strSendTo.strAddr.u16Port = pstrAddr->sin_port; strSendTo.strAddr.u32IPAddr = pstrAddr->sin_addr.s_addr; } s16Ret = SOCKET_REQUEST(SOCKET_CMD_SENDTO|M2M_REQ_DATA_PKT, (uint8*)&strSendTo, sizeof(tstrSendCmd), pvSendBuffer, u16SendLength, UDP_TX_PACKET_OFFSET); if(s16Ret != SOCK_ERR_NO_ERROR) { s16Ret = SOCK_ERR_BUFFER_FULL; } } } return s16Ret; } /********************************************************************* Function recv Description Return Author Ahmed Ezzat Version 1.0 2.0 9 April 2013 --> Add timeout for recv operation. Date 5 June 2012 *********************************************************************/ sint16 recv(SOCKET sock, void *pvRecvBuf, uint16 u16BufLen, uint32 u32Timeoutmsec) { sint16 s16Ret = SOCK_ERR_INVALID_ARG; #ifdef ARDUINO if((sock >= 0) && /*(pvRecvBuf != NULL) && (u16BufLen != 0) &&*/ (gastrSockets[sock].bIsUsed == 1)) #else if((sock >= 0) && (pvRecvBuf != NULL) && (u16BufLen != 0) && (gastrSockets[sock].bIsUsed == 1)) #endif { s16Ret = SOCK_ERR_NO_ERROR; gastrSockets[sock].pu8UserBuffer = (uint8*)pvRecvBuf; gastrSockets[sock].u16UserBufferSize = u16BufLen; if(!gastrSockets[sock].bIsRecvPending) { tstrRecvCmd strRecv; uint8 u8Cmd = SOCKET_CMD_RECV; gastrSockets[sock].bIsRecvPending = 1; if(gastrSockets[sock].u8SSLFlags & SSL_FLAGS_ACTIVE) { u8Cmd = SOCKET_CMD_SSL_RECV; } /* Check the timeout value. */ if(u32Timeoutmsec == 0) strRecv.u32Timeoutmsec = 0xFFFFFFFF; else strRecv.u32Timeoutmsec = NM_BSP_B_L_32(u32Timeoutmsec); strRecv.sock = sock; strRecv.u16SessionID = gastrSockets[sock].u16SessionID; s16Ret = SOCKET_REQUEST(u8Cmd, (uint8*)&strRecv, sizeof(tstrRecvCmd), NULL , 0, 0); if(s16Ret != SOCK_ERR_NO_ERROR) { s16Ret = SOCK_ERR_BUFFER_FULL; } } } return s16Ret; } /********************************************************************* Function close Description Return None. Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ sint8 close(SOCKET sock) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; M2M_INFO("Sock to delete <%d>\n", sock); if(sock >= 0 && (gastrSockets[sock].bIsUsed == 1)) { uint8 u8Cmd = SOCKET_CMD_CLOSE; tstrCloseCmd strclose; strclose.sock = sock; strclose.u16SessionID = gastrSockets[sock].u16SessionID; gastrSockets[sock].bIsUsed = 0; gastrSockets[sock].u16SessionID =0; if(gastrSockets[sock].u8SSLFlags & SSL_FLAGS_ACTIVE) { u8Cmd = SOCKET_CMD_SSL_CLOSE; } s8Ret = SOCKET_REQUEST(u8Cmd, (uint8*)&strclose, sizeof(tstrCloseCmd), NULL,0, 0); if(s8Ret != SOCK_ERR_NO_ERROR) { s8Ret = SOCK_ERR_INVALID; } m2m_memset((uint8*)&gastrSockets[sock], 0, sizeof(tstrSocket)); } return s8Ret; } /********************************************************************* Function recvfrom Description Return Author Ahmed Ezzat Version 1.0 2.0 9 April 2013 --> Add timeout for recv operation. Date 5 June 2012 *********************************************************************/ sint16 recvfrom(SOCKET sock, void *pvRecvBuf, uint16 u16BufLen, uint32 u32Timeoutmsec) { sint16 s16Ret = SOCK_ERR_NO_ERROR; #ifdef ARDUINO if((sock >= 0) && /*(pvRecvBuf != NULL) && (u16BufLen != 0) &&*/ (gastrSockets[sock].bIsUsed == 1)) #else if((sock >= 0) && (pvRecvBuf != NULL) && (u16BufLen != 0) && (gastrSockets[sock].bIsUsed == 1)) #endif { if(gastrSockets[sock].bIsUsed) { s16Ret = SOCK_ERR_NO_ERROR; gastrSockets[sock].pu8UserBuffer = (uint8*)pvRecvBuf; gastrSockets[sock].u16UserBufferSize = u16BufLen; if(!gastrSockets[sock].bIsRecvPending) { tstrRecvCmd strRecv; gastrSockets[sock].bIsRecvPending = 1; /* Check the timeout value. */ if(u32Timeoutmsec == 0) strRecv.u32Timeoutmsec = 0xFFFFFFFF; else strRecv.u32Timeoutmsec = NM_BSP_B_L_32(u32Timeoutmsec); strRecv.sock = sock; strRecv.u16SessionID = gastrSockets[sock].u16SessionID; s16Ret = SOCKET_REQUEST(SOCKET_CMD_RECVFROM, (uint8*)&strRecv, sizeof(tstrRecvCmd), NULL , 0, 0); if(s16Ret != SOCK_ERR_NO_ERROR) { s16Ret = SOCK_ERR_BUFFER_FULL; } } } } else { s16Ret = SOCK_ERR_INVALID_ARG; } return s16Ret; } /********************************************************************* Function nmi_inet_addr Description Return Unsigned 32-bit integer representing the IP address in Network byte order. Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ uint32 nmi_inet_addr(char *pcIpAddr) { uint8 tmp; uint32 u32IP = 0; uint8 au8IP[4]; uint8 c; uint8 i, j; tmp = 0; for(i = 0; i < 4; ++i) { j = 0; do { c = *pcIpAddr; ++j; if(j > 4) { return 0; } if(c == '.' || c == 0) { au8IP[i] = tmp; tmp = 0; } else if(c >= '0' && c <= '9') { tmp = (tmp * 10) + (c - '0'); } else { return 0; } ++pcIpAddr; } while(c != '.' && c != 0); } m2m_memcpy((uint8*)&u32IP, au8IP, 4); return u32IP; } /********************************************************************* Function gethostbyname Description Return None. Author Ahmed Ezzat Version 1.0 Date 4 June 2012 *********************************************************************/ sint8 gethostbyname(uint8 * pcHostName) { sint8 s8Err = SOCK_ERR_INVALID_ARG; uint8 u8HostNameSize = (uint8)m2m_strlen(pcHostName); if(u8HostNameSize <= HOSTNAME_MAX_SIZE) { s8Err = SOCKET_REQUEST(SOCKET_CMD_DNS_RESOLVE, (uint8*)pcHostName, u8HostNameSize + 1, NULL,0, 0); } return s8Err; } /********************************************************************* Function setsockopt Description Return None. Author Abdelrahman Diab Version 1.0 Date 9 September 2014 *********************************************************************/ static sint8 sslSetSockOpt(SOCKET sock, uint8 u8Opt, const void *pvOptVal, uint16 u16OptLen) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; if(sock < TCP_SOCK_MAX) { if(gastrSockets[sock].u8SSLFlags & SSL_FLAGS_ACTIVE) { if(u8Opt == SO_SSL_BYPASS_X509_VERIF) { int optVal = *((int*)pvOptVal); if(optVal) { gastrSockets[sock].u8SSLFlags |= SSL_FLAGS_BYPASS_X509; } else { gastrSockets[sock].u8SSLFlags &= ~SSL_FLAGS_BYPASS_X509; } s8Ret = SOCK_ERR_NO_ERROR; } else if(u8Opt == SO_SSL_ENABLE_SESSION_CACHING) { int optVal = *((int*)pvOptVal); if(optVal) { gastrSockets[sock].u8SSLFlags |= SSL_FLAGS_CACHE_SESSION; } else { gastrSockets[sock].u8SSLFlags &= ~SSL_FLAGS_CACHE_SESSION; } s8Ret = SOCK_ERR_NO_ERROR; } else if(u8Opt == SO_SSL_ENABLE_SNI_VALIDATION) { int optVal = *((int*)pvOptVal); if(optVal) { gastrSockets[sock].u8SSLFlags |= SSL_FLAGS_CHECK_SNI; } else { gastrSockets[sock].u8SSLFlags &= ~SSL_FLAGS_CHECK_SNI; } s8Ret = SOCK_ERR_NO_ERROR; } else if(u8Opt == SO_SSL_SNI) { if(u16OptLen < HOSTNAME_MAX_SIZE) { uint8 *pu8SNI = (uint8*)pvOptVal; tstrSSLSetSockOptCmd strCmd; strCmd.sock = sock; strCmd.u16SessionID = gastrSockets[sock].u16SessionID; strCmd.u8Option = u8Opt; strCmd.u32OptLen = u16OptLen; m2m_memcpy(strCmd.au8OptVal, pu8SNI, HOSTNAME_MAX_SIZE); if(SOCKET_REQUEST(SOCKET_CMD_SSL_SET_SOCK_OPT, (uint8*)&strCmd, sizeof(tstrSSLSetSockOptCmd), 0, 0, 0) == M2M_ERR_MEM_ALLOC) { s8Ret = SOCKET_REQUEST(SOCKET_CMD_SSL_SET_SOCK_OPT | M2M_REQ_DATA_PKT, (uint8*)&strCmd, sizeof(tstrSSLSetSockOptCmd), 0, 0, 0); } s8Ret = SOCK_ERR_NO_ERROR; } else { M2M_ERR("SNI Exceeds Max Length\n"); } } else { M2M_ERR("Unknown SSL Socket Option %d\n",u8Opt); } } else { M2M_ERR("Not SSL Socket\n"); } } return s8Ret; } /********************************************************************* Function setsockopt Description Return None. Author Abdelrahman Diab Version 1.0 Date 9 September 2014 *********************************************************************/ sint8 setsockopt(SOCKET sock, uint8 u8Level, uint8 option_name, const void *option_value, uint16 u16OptionLen) { sint8 s8Ret = SOCK_ERR_INVALID_ARG; if((sock >= 0) && (option_value != NULL) && (gastrSockets[sock].bIsUsed == 1)) { if(u8Level == SOL_SSL_SOCKET) { s8Ret = sslSetSockOpt(sock, option_name, option_value, u16OptionLen); } else { uint8 u8Cmd = SOCKET_CMD_SET_SOCKET_OPTION; tstrSetSocketOptCmd strSetSockOpt; strSetSockOpt.u8Option=option_name; strSetSockOpt.sock = sock; strSetSockOpt.u32OptionValue = *(uint32*)option_value; strSetSockOpt.u16SessionID = gastrSockets[sock].u16SessionID; s8Ret = SOCKET_REQUEST(u8Cmd, (uint8*)&strSetSockOpt, sizeof(tstrSetSocketOptCmd), NULL,0, 0); if(s8Ret != SOCK_ERR_NO_ERROR) { s8Ret = SOCK_ERR_INVALID; } } } return s8Ret; } /********************************************************************* Function getsockopt Description Return None. Author Ahmed Ezzat Version 1.0 Date 24 August 2014 *********************************************************************/ sint8 getsockopt(SOCKET sock, uint8 u8Level, uint8 u8OptName, const void *pvOptValue, uint8* pu8OptLen) { #ifdef ARDUINO // Silence "unused" warning (void)sock; (void)u8Level; (void)u8OptName; (void)pvOptValue; (void)pu8OptLen; #endif /* TBD */ return M2M_SUCCESS; } /********************************************************************* Function m2m_ping_req Description Send Ping request. Return Author Ahmed Ezzat Version 1.0 Date 4 June 2015 *********************************************************************/ sint8 m2m_ping_req(uint32 u32DstIP, uint8 u8TTL, tpfPingCb fpPingCb) { sint8 s8Ret = M2M_ERR_INVALID_ARG; if((u32DstIP != 0) && (fpPingCb != NULL)) { tstrPingCmd strPingCmd; strPingCmd.u16PingCount = 1; strPingCmd.u32DestIPAddr = u32DstIP; #ifdef ARDUINO strPingCmd.u32CmdPrivate = (uint32)(uintptr_t)(fpPingCb); #else strPingCmd.u32CmdPrivate = (uint32)(fpPingCb); #endif strPingCmd.u8TTL = u8TTL; s8Ret = SOCKET_REQUEST(SOCKET_CMD_PING, (uint8*)&strPingCmd, sizeof(tstrPingCmd), NULL, 0, 0); } return s8Ret; } /********************************************************************* Function sslEnableCertExpirationCheck Description Enable/Disable TLS Certificate Expiration Check. Return Author Ahmed Ezzat Version 1.0 Date *********************************************************************/ sint8 sslEnableCertExpirationCheck(tenuSslCertExpSettings enuValidationSetting) { tstrSslCertExpSettings strSettings; strSettings.u32CertExpValidationOpt = (uint32)enuValidationSetting; return SOCKET_REQUEST(SOCKET_CMD_SSL_EXP_CHECK, (uint8*)&strSettings, sizeof(tstrSslCertExpSettings), NULL, 0, 0); }