/***************************************************************************** * * socket.c - CC3000 Host Driver Implementation. * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS 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. * *****************************************************************************/ //***************************************************************************** // //! \addtogroup socket_api //! @{ // //***************************************************************************** #include #include #include #include #include #include #include //Enable this flag if and only if you must comply with BSD socket //close() function #ifdef _API_USE_BSD_CLOSE #define close(sd) closesocket(sd) #endif //Enable this flag if and only if you must comply with BSD socket read() and //write() functions #ifdef _API_USE_BSD_READ_WRITE #define read(sd, buf, len, flags) recv(sd, buf, len, flags) #define write(sd, buf, len, flags) send(sd, buf, len, flags) #endif #define SOCKET_OPEN_PARAMS_LEN (12) #define SOCKET_CLOSE_PARAMS_LEN (4) #define SOCKET_ACCEPT_PARAMS_LEN (4) #define SOCKET_BIND_PARAMS_LEN (20) #define SOCKET_LISTEN_PARAMS_LEN (8) #define SOCKET_GET_HOST_BY_NAME_PARAMS_LEN (9) #define SOCKET_CONNECT_PARAMS_LEN (20) #define SOCKET_SELECT_PARAMS_LEN (44) #define SOCKET_SET_SOCK_OPT_PARAMS_LEN (20) #define SOCKET_GET_SOCK_OPT_PARAMS_LEN (12) #define SOCKET_RECV_FROM_PARAMS_LEN (12) #define SOCKET_SENDTO_PARAMS_LEN (24) #define SOCKET_MDNS_ADVERTISE_PARAMS_LEN (12) // The legnth of arguments for the SEND command: sd + buff_offset + len + flags, // while size of each parameter is 32 bit - so the total length is 16 bytes; #define HCI_CMND_SEND_ARG_LENGTH (16) #define SELECT_TIMEOUT_MIN_MICRO_SECONDS 5000 #define HEADERS_SIZE_DATA (SPI_HEADER_SIZE + 5) #define SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE (SPI_HEADER_SIZE + SIMPLE_LINK_HCI_CMND_HEADER_SIZE) #define MDNS_DEVICE_SERVICE_MAX_LENGTH (32) //***************************************************************************** // //! HostFlowControlConsumeBuff //! //! @param sd socket descriptor //! //! @return 0 in case there are buffers available, //! -1 in case of bad socket //! -2 if there are no free buffers present (only when //! SEND_NON_BLOCKING is enabled) //! //! @brief if SEND_NON_BLOCKING not define - block until have free buffer //! becomes available, else return immediately with correct status //! regarding the buffers available. // //***************************************************************************** int HostFlowControlConsumeBuff(int sd) { #ifndef SEND_NON_BLOCKING /* wait in busy loop */ do { // In case last transmission failed then we will return the last failure // reason here. // Note that the buffer will not be allocated in this case if (tSLInformation.slTransmitDataError != 0) { errno = tSLInformation.slTransmitDataError; tSLInformation.slTransmitDataError = 0; return errno; } if(SOCKET_STATUS_ACTIVE != get_socket_active_status(sd)) return -1; } while(0 == tSLInformation.usNumberOfFreeBuffers); tSLInformation.usNumberOfFreeBuffers--; return 0; #else // In case last transmission failed then we will return the last failure // reason here. // Note that the buffer will not be allocated in this case if (tSLInformation.slTransmitDataError != 0) { errno = tSLInformation.slTransmitDataError; tSLInformation.slTransmitDataError = 0; return errno; } if(SOCKET_STATUS_ACTIVE != get_socket_active_status(sd)) return -1; //If there are no available buffers, return -2. It is recommended to use // select or receive to see if there is any buffer occupied with received data // If so, call receive() to release the buffer. if(0 == tSLInformation.usNumberOfFreeBuffers) { return -2; } else { tSLInformation.usNumberOfFreeBuffers--; return 0; } #endif } //***************************************************************************** // //! socket //! //! @param domain selects the protocol family which will be used for //! communication. On this version only AF_INET is supported //! @param type specifies the communication semantics. On this version //! only SOCK_STREAM, SOCK_DGRAM, SOCK_RAW are supported //! @param protocol specifies a particular protocol to be used with the //! socket IPPROTO_TCP, IPPROTO_UDP or IPPROTO_RAW are //! supported. //! //! @return On success, socket handle that is used for consequent socket //! operations. On error, -1 is returned. //! //! @brief create an endpoint for communication //! The socket function creates a socket that is bound to a specific //! transport service provider. This function is called by the //! application layer to obtain a socket handle. // //***************************************************************************** int socket(long domain, long type, long protocol) { long ret; unsigned char *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, domain); args = UINT32_TO_STREAM(args, type); args = UINT32_TO_STREAM(args, protocol); // Initiate a HCI command hci_command_send(HCI_CMND_SOCKET, ptr, SOCKET_OPEN_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_SOCKET, &ret); // Process the event errno = ret; set_socket_active_status(ret, SOCKET_STATUS_ACTIVE); return(ret); } //***************************************************************************** // //! closesocket //! //! @param sd socket handle. //! //! @return On success, zero is returned. On error, -1 is returned. //! //! @brief The socket function closes a created socket. // //***************************************************************************** long closesocket(long sd) { long ret; unsigned char *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, sd); // Initiate a HCI command hci_command_send(HCI_CMND_CLOSE_SOCKET, ptr, SOCKET_CLOSE_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_CLOSE_SOCKET, &ret); errno = ret; // since 'close' call may result in either OK (and then it closed) or error // mark this socket as invalid set_socket_active_status(sd, SOCKET_STATUS_INACTIVE); return(ret); } //***************************************************************************** // //! accept //! //! @param[in] sd socket descriptor (handle) //! @param[out] addr the argument addr is a pointer to a sockaddr structure //! This structure is filled in with the address of the //! peer socket, as known to the communications layer. //! determined. The exact format of the address returned //! addr is by the socket's address sockaddr. //! On this version only AF_INET is supported. //! This argument returns in network order. //! @param[out] addrlen the addrlen argument is a value-result argument: //! it should initially contain the size of the structure //! pointed to by addr. //! //! @return For socket in blocking mode: //! On success, socket handle. on failure negative //! For socket in non-blocking mode: //! - On connection establishment, socket handle //! - On connection pending, SOC_IN_PROGRESS (-2) //! - On failure, SOC_ERROR (-1) //! //! @brief accept a connection on a socket: //! This function is used with connection-based socket types //! (SOCK_STREAM). It extracts the first connection request on the //! queue of pending connections, creates a new connected socket, and //! returns a new file descriptor referring to that socket. //! The newly created socket is not in the listening state. //! The original socket sd is unaffected by this call. //! The argument sd is a socket that has been created with socket(), //! bound to a local address with bind(), and is listening for //! connections after a listen(). The argument addr is a pointer //! to a sockaddr structure. This structure is filled in with the //! address of the peer socket, as known to the communications layer. //! The exact format of the address returned addr is determined by the //! socket's address family. The addrlen argument is a value-result //! argument: it should initially contain the size of the structure //! pointed to by addr, on return it will contain the actual //! length (in bytes) of the address returned. //! //! @sa socket ; bind ; listen // //***************************************************************************** long accept(long sd, sockaddr *addr, socklen_t *addrlen) { long ret; unsigned char *ptr, *args; tBsdReturnParams tAcceptReturnArguments; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); // Initiate a HCI command hci_command_send(HCI_CMND_ACCEPT, ptr, SOCKET_ACCEPT_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_ACCEPT, &tAcceptReturnArguments); // need specify return parameters!!! memcpy(addr, &tAcceptReturnArguments.tSocketAddress, ASIC_ADDR_LEN); *addrlen = ASIC_ADDR_LEN; errno = tAcceptReturnArguments.iStatus; ret = errno; // if succeeded, iStatus = new socket descriptor. otherwise - error number if(M_IS_VALID_SD(ret)) { set_socket_active_status(ret, SOCKET_STATUS_ACTIVE); } else { set_socket_active_status(sd, SOCKET_STATUS_INACTIVE); } return(ret); } //***************************************************************************** // //! bind //! //! @param[in] sd socket descriptor (handle) //! @param[out] addr specifies the destination address. On this version //! only AF_INET is supported. //! @param[out] addrlen contains the size of the structure pointed to by addr. //! //! @return On success, zero is returned. On error, -1 is returned. //! //! @brief assign a name to a socket //! This function gives the socket the local address addr. //! addr is addrlen bytes long. Traditionally, this is called when a //! socket is created with socket, it exists in a name space (address //! family) but has no name assigned. //! It is necessary to assign a local address before a SOCK_STREAM //! socket may receive connections. //! //! @sa socket ; accept ; listen // //***************************************************************************** long bind(long sd, const sockaddr *addr, long addrlen) { long ret; unsigned char *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); addrlen = ASIC_ADDR_LEN; // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, addrlen); ARRAY_TO_STREAM(args, ((unsigned char *)addr), addrlen); // Initiate a HCI command hci_command_send(HCI_CMND_BIND, ptr, SOCKET_BIND_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_BIND, &ret); errno = ret; return(ret); } //***************************************************************************** // //! listen //! //! @param[in] sd socket descriptor (handle) //! @param[in] backlog specifies the listen queue depth. On this version //! backlog is not supported. //! @return On success, zero is returned. On error, -1 is returned. //! //! @brief listen for connections on a socket //! The willingness to accept incoming connections and a queue //! limit for incoming connections are specified with listen(), //! and then the connections are accepted with accept. //! The listen() call applies only to sockets of type SOCK_STREAM //! The backlog parameter defines the maximum length the queue of //! pending connections may grow to. //! //! @sa socket ; accept ; bind //! //! @note On this version, backlog is not supported // //***************************************************************************** long listen(long sd, long backlog) { long ret; unsigned char *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, backlog); // Initiate a HCI command hci_command_send(HCI_CMND_LISTEN, ptr, SOCKET_LISTEN_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_LISTEN, &ret); errno = ret; return(ret); } //***************************************************************************** // //! gethostbyname //! //! @param[in] hostname host name //! @param[in] usNameLen name length //! @param[out] out_ip_addr This parameter is filled in with host IP address. //! In case that host name is not resolved, //! out_ip_addr is zero. //! @return On success, positive is returned. On error, negative is returned //! //! @brief Get host IP by name. Obtain the IP Address of machine on network, //! by its name. //! //! @note On this version, only blocking mode is supported. Also note that //! the function requires DNS server to be configured prior to its usage. // //***************************************************************************** #ifndef CC3000_TINY_DRIVER int gethostbyname(char * hostname, unsigned short usNameLen, unsigned long* out_ip_addr) { tBsdGethostbynameParams ret; unsigned char *ptr, *args; errno = EFAIL; if (usNameLen > HOSTNAME_MAX_LENGTH) { return errno; } ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, 8); args = UINT32_TO_STREAM(args, usNameLen); ARRAY_TO_STREAM(args, hostname, usNameLen); // Initiate a HCI command hci_command_send(HCI_CMND_GETHOSTNAME, ptr, SOCKET_GET_HOST_BY_NAME_PARAMS_LEN + usNameLen - 1); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_EVNT_BSD_GETHOSTBYNAME, &ret); errno = ret.retVal; (*((long*)out_ip_addr)) = ret.outputAddress; return (errno); } #endif //***************************************************************************** // //! connect //! //! @param[in] sd socket descriptor (handle) //! @param[in] addr specifies the destination addr. On this version //! only AF_INET is supported. //! @param[out] addrlen contains the size of the structure pointed to by addr //! @return On success, zero is returned. On error, -1 is returned //! //! @brief initiate a connection on a socket //! Function connects the socket referred to by the socket descriptor //! sd, to the address specified by addr. The addrlen argument //! specifies the size of addr. The format of the address in addr is //! determined by the address space of the socket. If it is of type //! SOCK_DGRAM, this call specifies the peer with which the socket is //! to be associated; this address is that to which datagrams are to be //! sent, and the only address from which datagrams are to be received. //! If the socket is of type SOCK_STREAM, this call attempts to make a //! connection to another socket. The other socket is specified by //! address, which is an address in the communications space of the //! socket. Note that the function implements only blocking behavior //! thus the caller will be waiting either for the connection //! establishment or for the connection establishment failure. //! //! @sa socket // //***************************************************************************** long connect(long sd, const sockaddr *addr, long addrlen) { long int ret; unsigned char *ptr, *args; ret = EFAIL; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); addrlen = 8; // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, addrlen); ARRAY_TO_STREAM(args, ((unsigned char *)addr), addrlen); // Initiate a HCI command hci_command_send(HCI_CMND_CONNECT, ptr, SOCKET_CONNECT_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_CONNECT, &ret); errno = ret; return((long)ret); } //***************************************************************************** // //! select //! //! @param[in] nfds the highest-numbered file descriptor in any of the //! three sets, plus 1. //! @param[out] writesds socket descriptors list for write monitoring //! @param[out] readsds socket descriptors list for read monitoring //! @param[out] exceptsds socket descriptors list for exception monitoring //! @param[in] timeout is an upper bound on the amount of time elapsed //! before select() returns. Null means infinity //! timeout. The minimum timeout is 5 milliseconds, //! less than 5 milliseconds will be set //! automatically to 5 milliseconds. //! @return On success, select() returns the number of file descriptors //! contained in the three returned descriptor sets (that is, the //! total number of bits that are set in readfds, writefds, //! exceptfds) which may be zero if the timeout expires before //! anything interesting happens. //! On error, -1 is returned. //! *readsds - return the sockets on which Read request will //! return without delay with valid data. //! *writesds - return the sockets on which Write request //! will return without delay. //! *exceptsds - return the sockets which closed recently. //! //! @brief Monitor socket activity //! Select allow a program to monitor multiple file descriptors, //! waiting until one or more of the file descriptors become //! "ready" for some class of I/O operation //! //! @Note If the timeout value set to less than 5ms it will automatically set //! to 5ms to prevent overload of the system //! //! @sa socket // //***************************************************************************** int select(long nfds, TICC3000fd_set *readsds, TICC3000fd_set *writesds, TICC3000fd_set *exceptsds, struct timeval *timeout) { unsigned char *ptr, *args; tBsdSelectRecvParams tParams; unsigned long is_blocking; if( timeout == NULL) { is_blocking = 1; /* blocking , infinity timeout */ } else { is_blocking = 0; /* no blocking, timeout */ } // Fill in HCI packet structure ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, nfds); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, 0x00000014); args = UINT32_TO_STREAM(args, is_blocking); args = UINT32_TO_STREAM(args, ((readsds) ? *(unsigned long*)readsds : 0)); args = UINT32_TO_STREAM(args, ((writesds) ? *(unsigned long*)writesds : 0)); args = UINT32_TO_STREAM(args, ((exceptsds) ? *(unsigned long*)exceptsds : 0)); if (timeout) { if ( 0 == timeout->tv_sec && timeout->tv_usec < SELECT_TIMEOUT_MIN_MICRO_SECONDS) { timeout->tv_usec = SELECT_TIMEOUT_MIN_MICRO_SECONDS; } args = UINT32_TO_STREAM(args, timeout->tv_sec); args = UINT32_TO_STREAM(args, timeout->tv_usec); } // Initiate a HCI command hci_command_send(HCI_CMND_BSD_SELECT, ptr, SOCKET_SELECT_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_EVNT_SELECT, &tParams); // Update actually read FD if (tParams.iStatus >= 0) { if (readsds) { memcpy(readsds, &tParams.uiRdfd, sizeof(tParams.uiRdfd)); } if (writesds) { memcpy(writesds, &tParams.uiWrfd, sizeof(tParams.uiWrfd)); } if (exceptsds) { memcpy(exceptsds, &tParams.uiExfd, sizeof(tParams.uiExfd)); } return(tParams.iStatus); } else { errno = tParams.iStatus; return(-1); } } //***************************************************************************** // //! setsockopt //! //! @param[in] sd socket handle //! @param[in] level defines the protocol level for this option //! @param[in] optname defines the option name to Interrogate //! @param[in] optval specifies a value for the option //! @param[in] optlen specifies the length of the option value //! @return On success, zero is returned. On error, -1 is returned //! //! @brief set socket options //! This function manipulate the options associated with a socket. //! Options may exist at multiple protocol levels; they are always //! present at the uppermost socket level. //! When manipulating socket options the level at which the option //! resides and the name of the option must be specified. //! To manipulate options at the socket level, level is specified as //! SOL_SOCKET. To manipulate options at any other level the protocol //! number of the appropriate protocol controlling the option is //! supplied. For example, to indicate that an option is to be //! interpreted by the TCP protocol, level should be set to the //! protocol number of TCP; //! The parameters optval and optlen are used to access optval - //! use for setsockopt(). For getsockopt() they identify a buffer //! in which the value for the requested option(s) are to //! be returned. For getsockopt(), optlen is a value-result //! parameter, initially containing the size of the buffer //! pointed to by option_value, and modified on return to //! indicate the actual size of the value returned. If no option //! value is to be supplied or returned, option_value may be NULL. //! //! @Note On this version the following two socket options are enabled: //! The only protocol level supported in this version //! is SOL_SOCKET (level). //! 1. SOCKOPT_RECV_TIMEOUT (optname) //! SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout //! in milliseconds. //! In that case optval should be pointer to unsigned long. //! 2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on //! or off. //! In that case optval should be SOCK_ON or SOCK_OFF (optval). //! //! @sa getsockopt // //***************************************************************************** #ifndef CC3000_TINY_DRIVER int setsockopt(long sd, long level, long optname, const void *optval, socklen_t optlen) { int ret; unsigned char *ptr, *args; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, level); args = UINT32_TO_STREAM(args, optname); args = UINT32_TO_STREAM(args, 0x00000008); args = UINT32_TO_STREAM(args, optlen); ARRAY_TO_STREAM(args, ((unsigned char *)optval), optlen); // Initiate a HCI command hci_command_send(HCI_CMND_SETSOCKOPT, ptr, SOCKET_SET_SOCK_OPT_PARAMS_LEN + optlen); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_SETSOCKOPT, &ret); if (ret >= 0) { return (0); } else { errno = ret; return ret; } } #endif //***************************************************************************** // //! getsockopt //! //! @param[in] sd socket handle //! @param[in] level defines the protocol level for this option //! @param[in] optname defines the option name to Interrogate //! @param[out] optval specifies a value for the option //! @param[out] optlen specifies the length of the option value //! @return On success, zero is returned. On error, -1 is returned //! //! @brief set socket options //! This function manipulate the options associated with a socket. //! Options may exist at multiple protocol levels; they are always //! present at the uppermost socket level. //! When manipulating socket options the level at which the option //! resides and the name of the option must be specified. //! To manipulate options at the socket level, level is specified as //! SOL_SOCKET. To manipulate options at any other level the protocol //! number of the appropriate protocol controlling the option is //! supplied. For example, to indicate that an option is to be //! interpreted by the TCP protocol, level should be set to the //! protocol number of TCP; //! The parameters optval and optlen are used to access optval - //! use for setsockopt(). For getsockopt() they identify a buffer //! in which the value for the requested option(s) are to //! be returned. For getsockopt(), optlen is a value-result //! parameter, initially containing the size of the buffer //! pointed to by option_value, and modified on return to //! indicate the actual size of the value returned. If no option //! value is to be supplied or returned, option_value may be NULL. //! //! @Note On this version the following two socket options are enabled: //! The only protocol level supported in this version //! is SOL_SOCKET (level). //! 1. SOCKOPT_RECV_TIMEOUT (optname) //! SOCKOPT_RECV_TIMEOUT configures recv and recvfrom timeout //! in milliseconds. //! In that case optval should be pointer to unsigned long. //! 2. SOCKOPT_NONBLOCK (optname). sets the socket non-blocking mode on //! or off. //! In that case optval should be SOCK_ON or SOCK_OFF (optval). //! //! @sa setsockopt // //***************************************************************************** int getsockopt (long sd, long level, long optname, void *optval, socklen_t *optlen) { unsigned char *ptr, *args; tBsdGetSockOptReturnParams tRetParams; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, level); args = UINT32_TO_STREAM(args, optname); // Initiate a HCI command hci_command_send(HCI_CMND_GETSOCKOPT, ptr, SOCKET_GET_SOCK_OPT_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_CMND_GETSOCKOPT, &tRetParams); if (((signed char)tRetParams.iStatus) >= 0) { *optlen = 4; memcpy(optval, tRetParams.ucOptValue, 4); return (0); } else { errno = tRetParams.iStatus; return errno; } } //***************************************************************************** // //! simple_link_recv //! //! @param sd socket handle //! @param buf read buffer //! @param len buffer length //! @param flags indicates blocking or non-blocking operation //! @param from pointer to an address structure indicating source address //! @param fromlen source address structure size //! //! @return Return the number of bytes received, or -1 if an error //! occurred //! //! @brief Read data from socket //! Return the length of the message on successful completion. //! If a message is too long to fit in the supplied buffer, //! excess bytes may be discarded depending on the type of //! socket the message is received from // //***************************************************************************** int simple_link_recv(long sd, void *buf, long len, long flags, sockaddr *from, socklen_t *fromlen, long opcode) { unsigned char *ptr, *args; tBsdReadReturnParams tSocketReadEvent; ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_CMD); // Fill in HCI packet structure args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, len); args = UINT32_TO_STREAM(args, flags); // Generate the read command, and wait for the hci_command_send(opcode, ptr, SOCKET_RECV_FROM_PARAMS_LEN); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(opcode, &tSocketReadEvent); // In case the number of bytes is more then zero - read data if (tSocketReadEvent.iNumberOfBytes > 0) { // Wait for the data in a synchronous way. Here we assume that the bug is // big enough to store also parameters of receive from too.... SimpleLinkWaitData((unsigned char *)buf, (unsigned char *)from, (unsigned char *)fromlen); } errno = tSocketReadEvent.iNumberOfBytes; return(tSocketReadEvent.iNumberOfBytes); } //***************************************************************************** // //! recv //! //! @param[in] sd socket handle //! @param[out] buf Points to the buffer where the message should be stored //! @param[in] len Specifies the length in bytes of the buffer pointed to //! by the buffer argument. //! @param[in] flags Specifies the type of message reception. //! On this version, this parameter is not supported. //! //! @return Return the number of bytes received, or -1 if an error //! occurred //! //! @brief function receives a message from a connection-mode socket //! //! @sa recvfrom //! //! @Note On this version, only blocking mode is supported. // //***************************************************************************** int recv(long sd, void *buf, long len, long flags) { return(simple_link_recv(sd, buf, len, flags, NULL, NULL, HCI_CMND_RECV)); } //***************************************************************************** // //! recvfrom //! //! @param[in] sd socket handle //! @param[out] buf Points to the buffer where the message should be stored //! @param[in] len Specifies the length in bytes of the buffer pointed to //! by the buffer argument. //! @param[in] flags Specifies the type of message reception. //! On this version, this parameter is not supported. //! @param[in] from pointer to an address structure indicating the source //! address: sockaddr. On this version only AF_INET is //! supported. //! @param[in] fromlen source address tructure size //! //! @return Return the number of bytes received, or -1 if an error //! occurred //! //! @brief read data from socket //! function receives a message from a connection-mode or //! connectionless-mode socket. Note that raw sockets are not //! supported. //! //! @sa recv //! //! @Note On this version, only blocking mode is supported. // //***************************************************************************** int recvfrom(long sd, void *buf, long len, long flags, sockaddr *from, socklen_t *fromlen) { return(simple_link_recv(sd, buf, len, flags, from, fromlen, HCI_CMND_RECVFROM)); } //***************************************************************************** // //! simple_link_send //! //! @param sd socket handle //! @param buf write buffer //! @param len buffer length //! @param flags On this version, this parameter is not supported //! @param to pointer to an address structure indicating destination //! address //! @param tolen destination address structure size //! //! @return Return the number of bytes transmitted, or -1 if an error //! occurred, or -2 in case there are no free buffers available //! (only when SEND_NON_BLOCKING is enabled) //! //! @brief This function is used to transmit a message to another //! socket // //***************************************************************************** int simple_link_send(long sd, const void *buf, long len, long flags, const sockaddr *to, long tolen, long opcode) { unsigned char uArgSize = 0, addrlen; unsigned char *ptr, *pDataPtr = NULL, *args; unsigned long addr_offset = 0; int res; tBsdReadReturnParams tSocketSendEvent; // Check the bsd_arguments if (0 != (res = HostFlowControlConsumeBuff(sd))) { return res; } //Update the number of sent packets tSLInformation.NumberOfSentPackets++; // Allocate a buffer and construct a packet and send it over spi ptr = tSLInformation.pucTxCommandBuffer; args = (ptr + HEADERS_SIZE_DATA); // Update the offset of data and parameters according to the command switch(opcode) { case HCI_CMND_SENDTO: { addr_offset = len + sizeof(len) + sizeof(len); addrlen = 8; uArgSize = SOCKET_SENDTO_PARAMS_LEN; pDataPtr = ptr + HEADERS_SIZE_DATA + SOCKET_SENDTO_PARAMS_LEN; break; } case HCI_CMND_SEND: { tolen = 0; to = NULL; uArgSize = HCI_CMND_SEND_ARG_LENGTH; pDataPtr = ptr + HEADERS_SIZE_DATA + HCI_CMND_SEND_ARG_LENGTH; break; } default: { break; } } // Fill in temporary command buffer args = UINT32_TO_STREAM(args, sd); args = UINT32_TO_STREAM(args, uArgSize - sizeof(sd)); args = UINT32_TO_STREAM(args, len); args = UINT32_TO_STREAM(args, flags); if (opcode == HCI_CMND_SENDTO) { args = UINT32_TO_STREAM(args, addr_offset); args = UINT32_TO_STREAM(args, addrlen); } // Copy the data received from user into the TX Buffer ARRAY_TO_STREAM(pDataPtr, ((unsigned char *)buf), len); // In case we are using SendTo, copy the to parameters if (opcode == HCI_CMND_SENDTO) { ARRAY_TO_STREAM(pDataPtr, ((unsigned char *)to), tolen); } // Initiate a HCI command hci_data_send(opcode, ptr, uArgSize, len,(unsigned char*)to, tolen); if (opcode == HCI_CMND_SENDTO) SimpleLinkWaitEvent(HCI_EVNT_SENDTO, &tSocketSendEvent); else SimpleLinkWaitEvent(HCI_EVNT_SEND, &tSocketSendEvent); return (len); } //***************************************************************************** // //! send //! //! @param sd socket handle //! @param buf Points to a buffer containing the message to be sent //! @param len message size in bytes //! @param flags On this version, this parameter is not supported //! //! @return Return the number of bytes transmitted, or -1 if an //! error occurred //! //! @brief Write data to TCP socket //! This function is used to transmit a message to another //! socket. //! //! @Note On this version, only blocking mode is supported. //! //! @sa sendto // //***************************************************************************** int send(long sd, const void *buf, long len, long flags) { return(simple_link_send(sd, buf, len, flags, NULL, 0, HCI_CMND_SEND)); } //***************************************************************************** // //! sendto //! //! @param sd socket handle //! @param buf Points to a buffer containing the message to be sent //! @param len message size in bytes //! @param flags On this version, this parameter is not supported //! @param to pointer to an address structure indicating the destination //! address: sockaddr. On this version only AF_INET is //! supported. //! @param tolen destination address structure size //! //! @return Return the number of bytes transmitted, or -1 if an //! error occurred //! //! @brief Write data to TCP socket //! This function is used to transmit a message to another //! socket. //! //! @Note On this version, only blocking mode is supported. //! //! @sa send // //***************************************************************************** int sendto(long sd, const void *buf, long len, long flags, const sockaddr *to, socklen_t tolen) { return(simple_link_send(sd, buf, len, flags, to, tolen, HCI_CMND_SENDTO)); } //***************************************************************************** // //! mdnsAdvertiser //! //! @param[in] mdnsEnabled flag to enable/disable the mDNS feature //! @param[in] deviceServiceName Service name as part of the published //! canonical domain name //! @param[in] deviceServiceNameLength Length of the service name //! //! //! @return On success, zero is returned, return SOC_ERROR if socket was not //! opened successfully, or if an error occurred. //! //! @brief Set CC3000 in mDNS advertiser mode in order to advertise itself. // //***************************************************************************** int mdnsAdvertiser(unsigned short mdnsEnabled, char * deviceServiceName, unsigned short deviceServiceNameLength) { int ret; unsigned char *pTxBuffer, *pArgs; if (deviceServiceNameLength > MDNS_DEVICE_SERVICE_MAX_LENGTH) { return EFAIL; } pTxBuffer = tSLInformation.pucTxCommandBuffer; pArgs = (pTxBuffer + SIMPLE_LINK_HCI_CMND_TRANSPORT_HEADER_SIZE); // Fill in HCI packet structure pArgs = UINT32_TO_STREAM(pArgs, mdnsEnabled); pArgs = UINT32_TO_STREAM(pArgs, 8); pArgs = UINT32_TO_STREAM(pArgs, deviceServiceNameLength); ARRAY_TO_STREAM(pArgs, deviceServiceName, deviceServiceNameLength); // Initiate a HCI command hci_command_send(HCI_CMND_MDNS_ADVERTISE, pTxBuffer, SOCKET_MDNS_ADVERTISE_PARAMS_LEN + deviceServiceNameLength); // Since we are in blocking state - wait for event complete SimpleLinkWaitEvent(HCI_EVNT_MDNS_ADVERTISE, &ret); return ret; }