diff options
Diffstat (limited to 'Src/IP')
| -rw-r--r-- | Src/IP/MostIpc.cpp | 510 | ||||
| -rw-r--r-- | Src/IP/MostIpc.h | 164 | ||||
| -rw-r--r-- | Src/IP/MostMsg.cpp | 405 | ||||
| -rw-r--r-- | Src/IP/MostMsg.h | 184 | ||||
| -rw-r--r-- | Src/IP/MostMsgTx.cpp | 86 | ||||
| -rw-r--r-- | Src/IP/MostMsgTx.h | 96 | ||||
| -rw-r--r-- | Src/IP/MsgAddr.cpp | 71 | ||||
| -rw-r--r-- | Src/IP/MsgAddr.h | 73 | ||||
| -rw-r--r-- | Src/IP/MsgFilter.cpp | 47 | ||||
| -rw-r--r-- | Src/IP/MsgFilter.h | 72 |
10 files changed, 1708 insertions, 0 deletions
diff --git a/Src/IP/MostIpc.cpp b/Src/IP/MostIpc.cpp new file mode 100644 index 0000000..86e7341 --- /dev/null +++ b/Src/IP/MostIpc.cpp @@ -0,0 +1,510 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <arpa/inet.h> +#include <netinet/in.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <netinet/in.h> +#include <netdb.h> +#include <arpa/inet.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <errno.h> +#include <assert.h> +#include "Console.h" +#include "MostIpc.h" + + +#define TCP_BUFFER_SIZE (1024*1024) + +CMostIpc::CMostIpc( int port, bool server ) : isServer( server ), allowThreadRun( true ), + udpRxThreadIsRunning( false ), txThreadIsRunning (false), acceptThreadIsRunning( false ) +{ + if( isServer && 0 >= port ) + { + ConsolePrintf( PRIO_ERROR, RED"CMostIpc: Server port must be greater than 0!"RESETCOLOR"\n" ); + return; + } + pthread_mutex_init( &critical_mutex_tcp, NULL ); + sem_init( &semTx, 0, 0 ); //Mutex, initialized to 0 => sem_wait will block instantly + + struct sockaddr_in listenAddress; + /* Receive address configuration */ + memset( &listenAddress, 0, sizeof( listenAddress ) ); + listenAddress.sin_family = AF_INET; + listenAddress.sin_addr.s_addr = htonl( INADDR_ANY ); + listenAddress.sin_port = htons( port ); + + if( 0 > ( udpSock = socket( PF_INET, SOCK_DGRAM, IPPROTO_UDP ) ) ) + { + ConsolePrintf( PRIO_ERROR, RED"CMostIpc: Failed to create UDP socket"RESETCOLOR"\n" ); + return; + } + if( 0 > ( tcpSock = socket( PF_INET, SOCK_STREAM, 0 ) ) ) + { + ConsolePrintf( PRIO_ERROR, RED"CMostIpc: Failed to create TCP socket"RESETCOLOR"\n" ); + return; + } + + //Avoid hanging socket after killing application, only works with Linux kernel > 3.9 +#if defined (SO_REUSEADDR) && defined (SO_REUSEPORT) + int one = 1; + setsockopt(udpSock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &one, sizeof(one)); + setsockopt(tcpSock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &one, sizeof(one)); +#endif + + // this call is what allows broadcast UDP packets to be sent: + int enableSocketFlag = 1; + if( 0 > setsockopt( udpSock, SOL_SOCKET, SO_BROADCAST, &enableSocketFlag, sizeof( enableSocketFlag ) ) ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostIpc: setsockopt (SO_BROADCAST) failed, tried to set to: %d"RESETCOLOR"\n", enableSocketFlag ); + } + if( 0 < port ) + { + if( 0 > bind( udpSock, ( struct sockaddr * )&listenAddress, sizeof listenAddress ) ) + { + ConsolePrintf( PRIO_ERROR, RED"Failed to bind UDP socket"RESETCOLOR"\n" ); + } + if( 0 > bind( tcpSock, ( struct sockaddr * )&listenAddress, sizeof listenAddress ) ) + { + ConsolePrintf( PRIO_ERROR, RED"CMostIpc: Failed to bind TCP socket"RESETCOLOR"\n" ); + } + } + if( isServer ) + { + pthread_t acceptThread; + pthread_create( &acceptThread, NULL, CMostIpc::TcpAcceptThread, ( void * )this ); + } + pthread_t udpRxThread, txThread; + pthread_create( &udpRxThread, NULL, CMostIpc::UdpWorkerRXThread, ( void * )this ); + pthread_create( &txThread, NULL, CMostIpc::TXThread, ( void * )this ); +} + +CMostIpc::~CMostIpc() +{ + allowThreadRun = false; + close( udpSock ); + close( tcpSock ); + sem_post(&semTx); + int32_t timeout = 100; + while( ( udpRxThreadIsRunning || txThreadIsRunning || acceptThreadIsRunning ) && ( --timeout > 0 ) ) + usleep( 10000 ); + pthread_mutex_lock( &critical_mutex_tcp ); + for( uint32_t i = 0; i < m_TcpClientConnections.Size(); i++ ) + { + TcpClientInfo_t *var = m_TcpClientConnections[i]; + if( NULL != var ) + { + if( var->clientSock >= 0 ) + close( var->clientSock ); + var->clientSock = -1; + } + } + m_TcpClientConnections.RemoveAll(false); + pthread_mutex_unlock( &critical_mutex_tcp ); +} + +void CMostIpc::SendMsg( CMostMsgTx *Msg ) +{ + if( NULL != Msg ) + { + Msg->AddReference(); + m_MsgTxQueue.PushBack( Msg ); + sem_post(&semTx); + } +} + +void CMostIpc::RegisterMessageHandler( CMsgFilter *Filter ) +{ + m_MsgFilterQueue.PushBack( Filter ); +} + +void CMostIpc::UnregisterMessageHandler( CMsgFilter *Filter ) +{ + m_MsgFilterQueue.Remove(Filter); +} + +void *CMostIpc::TcpWorkerThread( void *pInst ) +{ + bool allowWorker = true; + TcpClientInfo_t *clientInfo = ( TcpClientInfo_t * )pInst; + if( NULL == clientInfo || NULL == clientInfo->ipc || 0 > clientInfo->clientSock ) + { + ConsolePrintf( PRIO_ERROR, RED"TcpWorkerThread: Invalid parameters"RESETCOLOR"\n" ); + return NULL; + } + uint8_t *buff = ( uint8_t * )malloc( TCP_BUFFER_SIZE ); + if( NULL == buff ) + { + ConsolePrintf( PRIO_ERROR, RED"TcpWorkerThread: Failed to allocate buffer"RESETCOLOR"\n" ); + return NULL; + } + + ConsolePrintf( PRIO_MEDIUM, "TcpWorkerThread: Start for IP:%s, Port:%d\n", clientInfo->clientIP, clientInfo->clientPort ); + + CMsgAddr *adr = new CMsgAddr( clientInfo->clientIP, clientInfo->clientPort, IpcTcp_V2_0 ); + CMostMsg *msg = NULL; + + while( clientInfo->ipc->allowThreadRun && allowWorker ) + { + int nRead; + if( 0 >= ( nRead = read( clientInfo->clientSock, buff, TCP_BUFFER_SIZE ) ) ) + { + if( clientInfo->ipc->allowThreadRun ) + { + if( 0 == nRead ) + ConsolePrintf( PRIO_MEDIUM, GREEN"TcpWorkerThread: TCP Client disconnected (IP:%s)"RESETCOLOR"\n", + clientInfo->clientIP ); + else + ConsolePrintf( PRIO_ERROR, YELLOW"TcpWorkerThread: Read error (return=%d), aborting .."RESETCOLOR"\n", nRead ); + } + allowWorker = false; + break; + } + for( int i = 0; i < nRead; i++ ) + { + if( NULL == msg ) + msg = new CMostMsg(); + if( !msg->Parse( buff[i] ) ) + { + ConsolePrintf( PRIO_ERROR, RED"TcpWorkerThread: Parse error, aborting.."RESETCOLOR"\n" ); + allowWorker = false; + break; + } + if( msg->IsValid() ) + { + clientInfo->ipc->OnMsgReceived( adr, msg ); + msg->RemoveReference(); + msg = NULL; + } + } + } + ConsolePrintf( PRIO_LOW, "TcpWorkerThread: End\n" ); + if( clientInfo->clientSock >= 0 ) + close( clientInfo->clientSock ); + + pthread_mutex_t *pMutex = &clientInfo->ipc->critical_mutex_tcp; + pthread_mutex_lock( pMutex ); + clientInfo->ipc->m_TcpClientConnections.Remove(clientInfo); + free( clientInfo ); + pthread_mutex_unlock( pMutex ); + + adr->RemoveReference(); + free( buff ); + return NULL; +} + +void *CMostIpc::TcpAcceptThread( void *pInst ) +{ + CMostIpc *ipc = ( CMostIpc * )pInst; + if( NULL == ipc || 0 > ipc->tcpSock ) + { + ConsolePrintf( PRIO_ERROR, RED"TcpAcceptThread was called with invalid parameters"RESETCOLOR"\n" ); + return NULL; + } + + ConsolePrintf( PRIO_LOW, "TcpAcceptThread starts\n" ); + ipc->acceptThreadIsRunning = true; + while( ipc->allowThreadRun ) + { + listen( ipc->tcpSock, 5 ); + socklen_t size = sizeof( struct sockaddr_in ); + TcpClientInfo_t *var = ( TcpClientInfo_t * )calloc( 1, sizeof( TcpClientInfo_t ) ); + if( NULL == var ) + { + ConsolePrintf( PRIO_ERROR, RED"Failed to allocate memory in TCP accept Thread, aborting.."RESETCOLOR"\n" ); + break; + } + struct sockaddr_in clientAddr; + var->clientSock = accept( ipc->tcpSock, ( struct sockaddr * )&clientAddr, &size ); + if( !ipc->allowThreadRun ) + break; + if( -1 == var->clientSock ) + { + ConsolePrintf( PRIO_ERROR, RED"Failed to accept connection"RESETCOLOR"\n" ); + free( var ); + continue; + } + var->ipc = ipc; + inet_ntop( AF_INET, ( struct sockaddr_in * )&clientAddr.sin_addr, var->clientIP, sizeof ( var->clientIP ) ); + var->clientPort = ntohs( clientAddr.sin_port ); + ConsolePrintf( PRIO_MEDIUM, GREEN"TCP Client connected: IP=%s, Port=%d"RESETCOLOR"\n", + var->clientIP, var->clientPort ); + pthread_mutex_lock( &var->ipc->critical_mutex_tcp ); + var->ipc->m_TcpClientConnections.PushBack( var ); + pthread_mutex_unlock( &var->ipc->critical_mutex_tcp ); + pthread_create( &var->workerThread, NULL, CMostIpc::TcpWorkerThread, ( void * )var ); + } + ConsolePrintf( PRIO_LOW, "TcpAcceptThread ends\n" ); + close( ipc->tcpSock ); + ipc->acceptThreadIsRunning = false; + return NULL; +} + +void CMostIpc::OnMsgReceived( CMsgAddr *Addr, CMostMsg *msg ) +{ + if( NULL == Addr || NULL == msg ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostIpc::OnMsgReceived was called with invalid parameters"RESETCOLOR"\n" ); + return; + } + ConsolePrintf( PRIO_LOW, "Received MOST-IPC message IP=%s, Protocol:%s, "\ + "FBlock:0x%X, Func:0x%X, OP:0x%X, PL:%d Bytes\n", Addr->GetInetAddress(), ( Addr->GetProtocol() == + IpcUdp_V2_0 ? "UDP" : "TCP" ), msg->GetFBlock(), msg->GetFunc(), msg->GetOpType(), msg->GetPayloadLen() ); + + for( uint32_t i = 0; i < m_MsgFilterQueue.Size(); i++ ) + { + m_MsgFilterQueue[i]->Filter( Addr, msg ); + } +} + +bool CMostIpc::SendUdp( const char *ipAddress, uint32_t port, const uint8_t *buffer, uint32_t bufferLen ) +{ + struct sockaddr_in destination; + memset( &destination, 0, sizeof ( destination ) ); + destination.sin_family = AF_INET; + destination.sin_addr.s_addr = inet_addr( ipAddress ); + destination.sin_port = htons( port ); + ssize_t bytesSent = sendto( udpSock, buffer, bufferLen, + 0, ( struct sockaddr * )&destination, sizeof ( destination ) ); + return ( ( uint32_t )bytesSent == bufferLen ); +} + +bool CMostIpc::SendTcp( const char *ipAddress, uint32_t port, const uint8_t *buffer, uint32_t bufferLen ) +{ + bool success = false; + TcpClientInfo_t *tcp = NULL; + + //Find the correct client connection + pthread_mutex_lock( &critical_mutex_tcp ); + for( uint32_t i = 0; i < m_TcpClientConnections.Size(); i++ ) + { + TcpClientInfo_t *t = m_TcpClientConnections[i]; + if( NULL != t && t->clientPort == port && 0 == strcmp( t->clientIP, ipAddress ) ) + { + tcp = t; + break; + } + } + //There is no connection matching to the given address and port, try to connect if we are not master + if( !isServer && NULL == tcp ) + { + TcpClientInfo_t *var = ( TcpClientInfo_t * )calloc( 1, sizeof( TcpClientInfo_t ) ); + if( NULL != var ) + { + var->ipc = this; + var->clientPort = port; + var->clientSock = tcpSock; + strncpy( var->clientIP, ipAddress, sizeof( var->clientIP ) ); + + struct hostent *hostp; + hostp = gethostbyname( var->clientIP ); + if( NULL != hostp ) + { + struct sockaddr_in addr; + memset( &addr, 0x00, sizeof( struct sockaddr_in ) ); + addr.sin_family = AF_INET; + addr.sin_port = htons( var->clientPort ); + memcpy( &addr.sin_addr, hostp->h_addr, sizeof( addr.sin_addr ) ); + if( 0 == connect( tcpSock, ( struct sockaddr * )&addr, sizeof( addr ) ) ) + { + tcp = var; + m_TcpClientConnections.PushBack( tcp ); + pthread_create( &tcp->workerThread, NULL, CMostIpc::TcpWorkerThread, ( void * )tcp ); + ConsolePrintf( PRIO_MEDIUM, GREEN"Connect to TCP host succeeded: IP=%s Port=%d"RESETCOLOR"\n", tcp->clientIP, + tcp->clientPort ); + + } + else + { + ConsolePrintf( PRIO_ERROR, RED"Could not connect to host: '%s'"RESETCOLOR"\n", var->clientIP ); + free( var ); + } + } + else + { + ConsolePrintf( PRIO_ERROR, RED"Could not find host: '%s'"RESETCOLOR"\n", var->clientIP ); + free( var ); + } + } + else + { + ConsolePrintf( PRIO_ERROR, RED"Failed to allocate memory in SendTcp method"RESETCOLOR"\n" ); + } + } + + if( NULL != tcp ) + { + int result; + uint32_t written = 0; + success = true; + while( written < bufferLen ) + { + result = write( tcp->clientSock, &buffer[written], bufferLen - written ); + if( result < 0 ) + { + ConsolePrintf( PRIO_ERROR, RED"SendTcp: Write error"RESETCOLOR"\n" ); + success = false; + break; + } + else if( result == 0 ) + { + //Socket is non blocking, sleep to avoid 100% CPU load + usleep( 1000 ); + } + else + { + written += result; + } + } + pthread_mutex_unlock( &critical_mutex_tcp ); + } + return success; +} + +void *CMostIpc::UdpWorkerRXThread( void *pInst ) +{ + CMostIpc *ipc = ( CMostIpc * )pInst; + if( NULL == ipc || 0 > ipc->udpSock ) + { + ConsolePrintf( PRIO_ERROR, RED"UdpWorkerRXThread was called with invalid parameters"RESETCOLOR"\n" ); + return NULL; + } + ipc->udpRxThreadIsRunning = true; + while( ipc->allowThreadRun ) + { + //Receive + if( ipc->allowThreadRun ) + { + uint8_t tempBuffer[8*1024]; + char remoteIP[INET6_ADDRSTRLEN]; + uint32_t port; + struct sockaddr_in fromAddr; + socklen_t fromAddrLen = sizeof( fromAddr ); + ssize_t receivedLength; + receivedLength = recvfrom + ( ipc->udpSock, tempBuffer, sizeof( tempBuffer ), + 0, ( struct sockaddr * )&fromAddr, &fromAddrLen ); + if( receivedLength > 0 ) + { + inet_ntop( AF_INET, ( struct sockaddr_in * )&fromAddr.sin_addr, remoteIP, sizeof( remoteIP ) ); + port = ntohs( fromAddr.sin_port ); + CMsgAddr *adr = new CMsgAddr( remoteIP, port ); + CMostMsg *msg = new CMostMsg(); + for( int32_t i = 0; i < receivedLength; i++ ) + { + if( !msg->Parse( tempBuffer[i] ) ) + { + ConsolePrintf( PRIO_ERROR, RED"CMostIpc UDP received unparsable message"RESETCOLOR"\n" ); + break; + } + } + if( msg->IsValid() ) + ipc->OnMsgReceived( adr, msg ); + adr->RemoveReference(); + msg->RemoveReference(); + } + } + } + ipc->udpRxThreadIsRunning = false; + return NULL; +} + +void *CMostIpc::TXThread( void *pInst ) +{ + CMostIpc *ipc = ( CMostIpc * )pInst; + if( NULL == ipc || 0 > ipc->udpSock ) + { + ConsolePrintf( PRIO_ERROR, RED"TXThread was called with invalid parameters"RESETCOLOR"\n" ); + return NULL; + } + ipc->txThreadIsRunning = true; + + while( ipc->allowThreadRun ) + { + sem_wait(&ipc->semTx); + if (!ipc->allowThreadRun) + break; + CMostMsgTx *MsgTx = ipc->m_MsgTxQueue.PopFront(); + assert (NULL != MsgTx); + if( NULL != MsgTx ) + { + uint8_t *tempBuffer = NULL; + uint32_t bytesUsed = MsgTx->ToByteArray( &tempBuffer ); + if( NULL == tempBuffer || 0 == bytesUsed ) + { + ConsolePrintf( PRIO_ERROR, RED"MOST-IP: Failed to serialize message"RESETCOLOR"\n" ); + if (NULL != tempBuffer) + free(tempBuffer); + MsgTx->MsgSent( false ); + continue; + } + CMsgAddr *addr = MsgTx->GetAddr(); + if( 0 != bytesUsed && NULL != addr ) + { + char *ipAddress = addr->GetInetAddress(); + uint32_t port = addr->GetPort(); + if( NULL != ipAddress ) + { + bool success = false; + switch( addr->GetProtocol() ) + { + case IpcUdp_V2_0: + success = ipc->SendUdp( ipAddress, port, tempBuffer, bytesUsed ); + break; + case IpcTcp_V2_0: + success = ipc->SendTcp( ipAddress, port, tempBuffer, bytesUsed ); + break; + default: + ConsolePrintf( PRIO_ERROR, RED"MOST-IP: Unknown Protocol"RESETCOLOR"\n" ); + break; + } + MsgTx->MsgSent( success ); + } + else + { + ConsolePrintf( PRIO_ERROR, RED"MOST-IP: Can not resolve IP address"RESETCOLOR"\n" ); + MsgTx->MsgSent( false ); + } + } + else + { + ConsolePrintf( PRIO_ERROR, RED"Error while sending in MOST IPC."RESETCOLOR"\n" ); + MsgTx->MsgSent( false ); + } + if (NULL != tempBuffer) + free( tempBuffer ); + MsgTx->RemoveReference(); + } + } + ipc->txThreadIsRunning = false; + return NULL; +} + diff --git a/Src/IP/MostIpc.h b/Src/IP/MostIpc.h new file mode 100644 index 0000000..0f8596d --- /dev/null +++ b/Src/IP/MostIpc.h @@ -0,0 +1,164 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*----------------------------------------------------------*/ +/*! \file + * \brief This file contains the CMostIpc class. + */ +/*----------------------------------------------------------*/ +#ifndef IPC_H +#define IPC_H + +#include <stdbool.h> +#include <pthread.h> +#include <semaphore.h> +#include "SafeVector.h" +#include "MsgAddr.h" +#include "MostMsgTx.h" +#include "MsgAddr.h" +#include "MsgFilter.h" + +class CMostIpc; + +/*! \cond PRIVATE */ +typedef struct +{ + pthread_t workerThread; + CMostIpc *ipc; + int clientSock; + char clientIP[46]; + uint32_t clientPort; +} TcpClientInfo_t; +/*! \endcond */ + +/*----------------------------------------------------------*/ +/*! + * \brief Inter Process Communication + * 1. sends messages using MOST protocol over UDP + * 2. receives messages and forwards them to their + * handlers + */ +/*----------------------------------------------------------*/ +class CMostIpc +{ +private: + bool isServer; + bool allowThreadRun; + bool udpRxThreadIsRunning; + bool txThreadIsRunning; + bool acceptThreadIsRunning; + CSafeVector<CMostMsgTx *> m_MsgTxQueue; + CSafeVector<CMsgFilter *> m_MsgFilterQueue; + CSafeVector<TcpClientInfo_t *> m_TcpClientConnections; + pthread_mutex_t critical_mutex_rx; + pthread_mutex_t critical_mutex_tcp; + sem_t semTx; + int udpSock; + int tcpSock; + + /*----------------------------------------------------------*/ + /*! \brief TCP accept thread + * \note Never call this method directly! + */ + /*----------------------------------------------------------*/ + static void *TcpAcceptThread( void *pInst ); + + /*----------------------------------------------------------*/ + /*! \brief TCP read / write thread + * \note Never call this method directly! + */ + /*----------------------------------------------------------*/ + static void *TcpWorkerThread( void *pInst ); + + + /*----------------------------------------------------------*/ + /*! \brief UDP receiving thread + * \note Never call this method directly! + */ + /*----------------------------------------------------------*/ + static void *UdpWorkerRXThread( void *pInst ); + + /*----------------------------------------------------------*/ + /*! \brief Sending thread + * \note Never call this method directly! + */ + /*----------------------------------------------------------*/ + static void *TXThread( void *pInst ); + + /*----------------------------------------------------------*/ + /*! \brief handle a received message + */ + /*----------------------------------------------------------*/ + void OnMsgReceived( CMsgAddr *Addr, CMostMsg *msg ); + + bool SendUdp( const char *ipAddress, uint32_t port, const uint8_t *buffer, uint32_t bufferLen ); + bool SendTcp( const char *ipAddress, uint32_t port, const uint8_t *buffer, uint32_t bufferLen ); + +public: + + + /*----------------------------------------------------------*/ + /*! \brief constructs Inter Process Communication, which acts as Server + * \param port - If set to server by isServer=true, this value is the server port which the UDP and TCP sockets are listening. + * If set to client by isServer=false, this is the client socket port. If set to 0 or below, a random port will be chosen. + * Otherwise the given port will be used as source port of the connection. The server always can handle random and fixed client port connections. + * \param isServer - true, if this component shall act as "the" server. false, if this component shall act as one of many clients. + */ + /*----------------------------------------------------------*/ + CMostIpc( int port, bool isServer ); + + /*----------------------------------------------------------*/ + /*! \brief Deletes every resources used by Inter Process Communication + */ + /*----------------------------------------------------------*/ + ~CMostIpc(); + + + /*----------------------------------------------------------*/ + /*! \brief send a MOST message + */ + /*----------------------------------------------------------*/ + void SendMsg( CMostMsgTx *Msg ); + + + + + /*----------------------------------------------------------*/ + /*! \brief adds a message handler + */ + /*----------------------------------------------------------*/ + void RegisterMessageHandler( CMsgFilter *Filter ); + + + + + /*----------------------------------------------------------*/ + /*! \brief removes a message handler + */ + /*----------------------------------------------------------*/ + void UnregisterMessageHandler( CMsgFilter *Filter ); + +}; + +#endif //IPC_H + diff --git a/Src/IP/MostMsg.cpp b/Src/IP/MostMsg.cpp new file mode 100644 index 0000000..3ca043f --- /dev/null +++ b/Src/IP/MostMsg.cpp @@ -0,0 +1,405 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +#include "Console.h" +#include "MostMsg.h" +#include <stdlib.h> + +static uint32_t crc32_tab[] = +{ + 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, + 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, + 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2, + 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, + 0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, + 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, + 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c, + 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59, + 0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, + 0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, + 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106, + 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433, + 0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, + 0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, + 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950, + 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65, + 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, + 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, + 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, + 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f, + 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, + 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, + 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84, + 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, + 0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, + 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, + 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e, + 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b, + 0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, + 0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, + 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28, + 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d, + 0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, + 0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, + 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242, + 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777, + 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, + 0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, + 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, + 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9, + 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, + 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, + 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d +}; + +static uint32_t CalcCRC32( const uint8_t *p, uint32_t size ) +{ + uint32_t crc = ~0U; + + while( size-- ) + crc = crc32_tab[( crc ^ *p++ ) & 0xFF] ^ ( crc >> 8 ); + + return crc ^ ~0U; +} + + +CMostMsg::CMostMsg() : m_nIsValid( false ), m_nRefCount( 1 ), m_nFBlock( 0 ), m_nFunc( 0 ), m_nInst( 0 ), + m_nOpType( 0 ), m_nPayloadLen( 0 ), m_Payload( NULL ), m_nParsePos( 0 ), + m_nHeaderCrc( 0 ), m_nPayloadCrc( 0 ) +{ +} + +CMostMsg::CMostMsg( uint32_t nFBlock, uint32_t nInst, uint32_t nFunc, uint8_t nOpType, uint32_t nPayloadLen, + const uint8_t *Payload ) : m_nIsValid( true ), m_nRefCount( 1 ), m_Payload( NULL ), + m_nParsePos( 0xFFFFFFFF ), m_nHeaderCrc( 0 ), m_nPayloadCrc( 0 ) +{ + m_nFBlock = nFBlock; + m_nInst = nInst; + m_nFunc = nFunc; + m_nOpType = nOpType; + m_nPayloadLen = nPayloadLen; + if( nPayloadLen > 0 ) + { + m_Payload = ( uint8_t * )malloc( m_nPayloadLen ); + if( NULL == m_Payload ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostMsg Constructor failed to allocated %d bytes of memory"RESETCOLOR"\n", m_nPayloadLen ); + m_nIsValid = false; + m_nPayloadLen = 0; + return; + } + memcpy( m_Payload, Payload, nPayloadLen ); + } +} + +CMostMsg::~CMostMsg() +{ + m_nIsValid = false; + m_nPayloadLen = 0; + if( NULL != m_Payload ) + { + free( m_Payload ); + m_Payload = NULL; + } +} + +void CMostMsg::AddReference() +{ + ++m_nRefCount; +} + +void CMostMsg::RemoveReference() +{ + if( 0 == --m_nRefCount ) + delete this; +} + +uint32_t CMostMsg::ToByteArray( uint8_t **ppBuffer ) +{ + if( NULL == ppBuffer ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostMsg::ToByteArray ppBuffer is NULL < %d"RESETCOLOR"\n" ); + return 0; + } + uint32_t serializedLen = 20; + if( 0 != m_nPayloadLen ) + serializedLen += m_nPayloadLen + 4; //If there is payload, it will be CRC checked + uint8_t *b = ( uint8_t * )malloc( serializedLen ); + if( NULL == b ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostMsg::ToByteArray failed to allocate %d bytes"RESETCOLOR"\n", ( m_nPayloadLen + 24 ) ); + *ppBuffer = NULL; + return 0; + } + *ppBuffer = b; + b[0] = ( uint8_t )0x49; + b[1] = ( uint8_t )0x72; + b[2] = ( uint8_t )0x16; + b[3] = ( uint8_t )0x25; + b[4] = ( uint8_t )( m_nFBlock & 0xFF ); + b[5] = ( uint8_t )( m_nInst & 0xFF ); + b[6] = ( uint8_t )( ( m_nFunc >> 8 ) & 0xFF ); + b[7] = ( uint8_t )( ( m_nFunc )&0xFF ); + b[8] = ( uint8_t )( m_nOpType ); + b[9] = ( uint8_t )0x0; + b[10] = ( uint8_t )0x0; + b[11] = ( uint8_t )0x0; + b[12] = ( uint8_t )( ( m_nPayloadLen >> 24 ) & 0xFF ); + b[13] = ( uint8_t )( ( m_nPayloadLen >> 16 ) & 0xFF ); + b[14] = ( uint8_t )( ( m_nPayloadLen >> 8 ) & 0xFF ); + b[15] = ( uint8_t )( m_nPayloadLen & 0xFF ); + + uint32_t headerCrc = CalcCRC32( b, 16 ); + + b[16] = ( uint8_t )( ( headerCrc >> 24 ) & 0xFF ); + b[17] = ( uint8_t )( ( headerCrc >> 16 ) & 0xFF ); + b[18] = ( uint8_t )( ( headerCrc >> 8 ) & 0xFF ); + b[19] = ( uint8_t )( headerCrc & 0xFF ); + + if( 0 != m_nPayloadLen ) + { + for( uint32_t i = 0; i < m_nPayloadLen; i++ ) + b[20 + i] = m_Payload[i]; + + uint32_t payloadCrc = CalcCRC32( &b[20], m_nPayloadLen ); + + b[20 + m_nPayloadLen] = ( uint8_t )( ( payloadCrc >> 24 ) & 0xFF ); + b[21 + m_nPayloadLen] = ( uint8_t )( ( payloadCrc >> 16 ) & 0xFF ); + b[22 + m_nPayloadLen] = ( uint8_t )( ( payloadCrc >> 8 ) & 0xFF ); + b[23 + m_nPayloadLen] = ( uint8_t )( payloadCrc & 0xFF ); + } + return serializedLen; +} + +bool CMostMsg::Parse( uint8_t receivedByte ) +{ + if( 0xFFFFFFFF == m_nParsePos ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMostMsg::Parse was called, but the parse state is invalid"RESETCOLOR"\n" ); + return false; + } + bool valid = true; + if( m_nParsePos <= 19 ) + { + if( m_nParsePos <= 15 ) + m_zHeader[m_nParsePos] = receivedByte; + + //Check Header + switch( m_nParsePos ) + { + case 0: + if( 0x49 != receivedByte ) + valid = false; + break; + case 1: + if( 0x72 != receivedByte ) + valid = false; + break; + case 2: + if( 0x16 != receivedByte ) + valid = false; + break; + case 3: + if( 0x25 != receivedByte ) + valid = false; + break; + case 4: + m_nFBlock = receivedByte; + break; + case 5: + m_nInst = receivedByte; + break; + case 6: + m_nFunc = receivedByte << 8; + break; + case 7: + m_nFunc += receivedByte; + break; + case 8: + m_nOpType = receivedByte; + break; + case 9: + case 10: + case 11: + //Reserved for future use cases + break; + case 12: + m_nPayloadLen = receivedByte << 24; + break; + case 13: + m_nPayloadLen += receivedByte << 16; + break; + case 14: + m_nPayloadLen += receivedByte << 8; + break; + case 15: + m_nPayloadLen += receivedByte; + break; + case 16: + m_nHeaderCrc = receivedByte << 24; + break; + case 17: + m_nHeaderCrc += receivedByte << 16; + break; + case 18: + m_nHeaderCrc += receivedByte << 8; + break; + case 19: + m_nHeaderCrc += receivedByte; + if( m_nHeaderCrc == CalcCRC32( m_zHeader, 16 ) ) + { + if( 0 != m_nPayloadLen ) + { + //Continue to parse the payload + m_Payload = ( uint8_t * )malloc( m_nPayloadLen ); + if( NULL == m_Payload ) + { + ConsolePrintf( + PRIO_ERROR, RED"MostMsg::Protocol deserializing error, could not allocate %d bytes of memory"RESETCOLOR + "\n", m_nPayloadLen ); + valid = false; + m_nPayloadLen = 0; + } + } + else + { + //No payload, we are finished + m_nIsValid = true; + m_nParsePos = 0xFFFFFFFF - 1; + } + } + else + { + ConsolePrintf( + PRIO_ERROR, RED"MostMsg::Protocol error, header CRC does not match"RESETCOLOR"\n" ); + valid = false; + } + break; + } + } + else + { + if( m_nParsePos < ( m_nPayloadLen + 20 ) ) + { + //Check Payload and store it + if( NULL != m_Payload ) + { + m_Payload[m_nParsePos - 20] = receivedByte; + } + else + { + ConsolePrintf( + PRIO_ERROR, RED"MostMsg::Protocol deserializing error, payload buffer is NULL"RESETCOLOR"\n" ); + valid = false; + m_nPayloadLen = 0; + } + } + else + { + //Finally check CRC of payload + uint32_t crcState = m_nParsePos - m_nPayloadLen - 20; + switch( crcState ) + { + case 0: + m_nPayloadCrc = receivedByte << 24; + break; + case 1: + m_nPayloadCrc += receivedByte << 16; + break; + case 2: + m_nPayloadCrc += receivedByte << 8; + break; + case 3: + m_nPayloadCrc += receivedByte; + if( m_nPayloadCrc == CalcCRC32( m_Payload, m_nPayloadLen ) ) + { + //Payload is successfully received + m_nIsValid = true; + m_nParsePos = 0xFFFFFFFF - 1; + } + else + { + ConsolePrintf( + PRIO_ERROR, RED"MostMsg::Protocol deserializing error, Payload CRC mismatch"RESETCOLOR"\n" ); + valid = false; + } + break; + default: + ConsolePrintf( + PRIO_ERROR, RED"MostMsg::Protocol deserializing error, Payload CRC state is out of range"RESETCOLOR"\n" ); + valid = false; + } + } + } + + if( valid ) + { + ++m_nParsePos; + } + else + { + ConsolePrintf( + PRIO_ERROR, RED"CMostMsg::Parse failed at parse position %d"RESETCOLOR"\n", m_nParsePos ); + m_nParsePos = 0xFFFFFFFF; + } + return valid; +} + +bool CMostMsg::IsValid() +{ + return m_nIsValid; +} + +uint32_t CMostMsg::GetFBlock() +{ + return m_nFBlock; +} + +uint32_t CMostMsg::GetFunc() +{ + return m_nFunc; +} + +uint32_t CMostMsg::GetInst() +{ + return m_nInst; +} + +uint8_t CMostMsg::GetOpType() +{ + return m_nOpType; +} + +uint8_t *CMostMsg::GetPayload() +{ + return m_Payload; +} + +uint32_t CMostMsg::GetPayloadLen() +{ + return m_nPayloadLen; +} diff --git a/Src/IP/MostMsg.h b/Src/IP/MostMsg.h new file mode 100644 index 0000000..fb4bdd8 --- /dev/null +++ b/Src/IP/MostMsg.h @@ -0,0 +1,184 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*----------------------------------------------------------*/ +/*! \file + * \brief This file contains the CMostMsg class. + */ +/*----------------------------------------------------------*/ +#ifndef MOSTMSG_H +#define MOSTMSG_H + +#include <stdint.h> +#include <stdbool.h> +#include <string.h> + + +/*----------------------------------------------------------*/ +/*! + * \brief class holding a MOST message, it support serializing and deserializing + * \note Serialize-Protocol is: </br> + * p[0] = 0x49 (Start) </br> + * p[1] = 0x72 (Start) </br> + * p[2] = 0x16 (Start) </br> + * p[3] = 0x25 (Start) </br> + * p[4] = FBlock Identifier </br> + * p[5] = Instance Identifier </br> + * p[6] = Function Identifier << 8 </br> + * p[7] = Function Identifier << 0 </br> + * p[8] = OP Type </br> + * p[9] = 0x0 (Reserved) </br> + * p[10] = 0x0 (Reserved) </br> + * p[11] = 0x0 (Reserved) </br> + * p[12] = Payload Length << 24 </br> + * p[13] = Payload Length << 16 </br> + * p[14] = Payload Length << 8 </br> + * p[15] = Payload Length << 0 </br> + * p[16] = Header CRC32(p[0] - p[15]) << 24 </br> + * p[17] = Header CRC32(p[0] - p[15]) << 16 </br> + * p[18] = Header CRC32(p[0] - p[15]) << 8 </br> + * p[19] = Header CRC32(p[0] - p[15]) << 0 </br> + * p[20] - p[n] = Payload </br> + * p[n+1] = Payload CRC32(p[20] - p[n]) << 24 </br> + * p[n+2] = Payload CRC32(p[20] - p[n]) << 16 </br> + * p[n+3] = Payload CRC32(p[20] - p[n]) << 8 </br> + * p[n+4] = Payload CRC32(p[20] - p[n]) << 0 </br> + */ + +/*----------------------------------------------------------*/ +class CMostMsg +{ +private: + bool m_nIsValid; + int32_t m_nRefCount; + uint32_t m_nFBlock; + uint32_t m_nFunc; + uint32_t m_nInst; + uint8_t m_nOpType; + uint32_t m_nPayloadLen; + uint8_t *m_Payload; + uint32_t m_nParsePos; + uint32_t m_nHeaderCrc; + uint32_t m_nPayloadCrc; + uint8_t m_zHeader[16]; + +protected: + /*----------------------------------------------------------*/ + /*! \brief Default Destructor + */ + /*----------------------------------------------------------*/ + virtual ~CMostMsg(); + +public: + + static const uint8_t OP_SET = 0x0; + static const uint8_t OP_GET = 0x1; + static const uint8_t OP_SETGET = 0x2; + static const uint8_t OP_INC = 0x3; + static const uint8_t OP_DEC = 0x4; + static const uint8_t OP_GETINTERFACE = 0x5; + static const uint8_t OP_STATUS = 0xC; + static const uint8_t OP_INTERFACE = 0xE; + static const uint8_t OP_ERROR = 0xF; + static const uint8_t OP_START = 0x0; + static const uint8_t OP_ABORT = 0x1; + static const uint8_t OP_STARTRESULT = 0x2; + static const uint8_t OP_STARTRESULTACK = 0x6; + static const uint8_t OP_ABORTACK = 0x7; + static const uint8_t OP_STARTACK = 0x8; + static const uint8_t OP_ERRORACK = 0x9; + static const uint8_t OP_PROCESSINGACK = 0xA; + static const uint8_t OP_PROCESSING = 0xB; + static const uint8_t OP_RESULT = 0xC; + static const uint8_t OP_RESULTACK = 0xD; + static const uint8_t OP_REPORTS = 0x9; + + + /*----------------------------------------------------------*/ + /*! \brief constructs a new message, which is initial not valid. + * \note It has to fed by the Parse method until IsValid method reports true. + */ + /*----------------------------------------------------------*/ + CMostMsg(); + + + /*----------------------------------------------------------*/ + /*! \brief constructs a new message which is fully set up and valid + * \param nFBlock - The MOST Function Block Identifier + * \param nInst - The MOST Function Block Instance Identifier + * \param nFunc - The MOST Function Block Function Identifier + * \param nPayloadLen - The amount of bytes stored in Payload + * \param Payload - The pointer to the payload byte array. + */ + /*----------------------------------------------------------*/ + CMostMsg( uint32_t nFBlock, uint32_t nInst, uint32_t nFunc, uint8_t nOpType, uint32_t nPayloadLen, + const uint8_t *Payload ); + + /*----------------------------------------------------------*/ + /*! \brief Increments the reference counter + */ + /*----------------------------------------------------------*/ + void AddReference(); + + /*----------------------------------------------------------*/ + /*! \brief Decrements the reference counter, if the value reaches 0, this object destroys it self. + */ + /*----------------------------------------------------------*/ + void RemoveReference(); + + /*----------------------------------------------------------*/ + /*! \brief Fills out an empty CMostMsg (created with default constructor) + * \return true, if parsing was valid. false, parser error, no way to continue. + * \note Check with IsValid method if parsing is finished. + */ + /*----------------------------------------------------------*/ + bool Parse( uint8_t receivedByte ); + + + + /*----------------------------------------------------------*/ + /*! \brief serializes a message to an byte array + * \note The byte array will be created inside this method and has to be freed after usage! + * \return The bytes used inside the given buffer. + */ + /*----------------------------------------------------------*/ + uint32_t ToByteArray( uint8_t **ppBuffer ); + + + bool IsValid(); + + uint32_t GetFBlock(); + + uint32_t GetFunc(); + + uint32_t GetInst(); + + uint8_t GetOpType(); + + uint8_t *GetPayload(); + + uint32_t GetPayloadLen(); +}; + + +#endif //MOSTMSG_H diff --git a/Src/IP/MostMsgTx.cpp b/Src/IP/MostMsgTx.cpp new file mode 100644 index 0000000..d3c5864 --- /dev/null +++ b/Src/IP/MostMsgTx.cpp @@ -0,0 +1,86 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +#include "MostMsgTx.h" + +CMostMsgTx::CMostMsgTx( CMsgAddr *Addr, uint32_t nFBlock, uint32_t nInst, uint32_t nFunc, uint8_t nOpType, + uint32_t nPayloadLen, const uint8_t *Payload, uint32_t nTimeoutMs, OnMessageSent_t MessageSent, + void *UserContext ) : CMostMsg( nFBlock, nInst, nFunc, nOpType, nPayloadLen, Payload ) +{ + if( NULL != Addr ) + { + Addr->AddReference(); + m_Addr = Addr; + } + m_nTimeoutMs = nTimeoutMs; + m_MessageSent = MessageSent; + m_UserContext = UserContext; +} + +CMostMsgTx::~CMostMsgTx() +{ + if( NULL != m_Addr ) + { + m_Addr->RemoveReference(); + m_Addr = NULL; + } +} + + + +/*----------------------------------------------------------*/ +/*! \brief calls message handler with the send result +*/ + +/*----------------------------------------------------------*/ +void CMostMsgTx::MsgSent( bool bSuccess ) +{ + if( NULL != m_MessageSent ) + m_MessageSent( bSuccess, this ); +} + + + + +/*----------------------------------------------------------*/ +/*! \brief get target address +*/ + +/*----------------------------------------------------------*/ +CMsgAddr *CMostMsgTx::GetAddr() +{ + return m_Addr; +} + + + + +/*----------------------------------------------------------*/ +/*! \brief get user context +*/ + +/*----------------------------------------------------------*/ +void *CMostMsgTx::GetUserContext() +{ + return m_UserContext; +} diff --git a/Src/IP/MostMsgTx.h b/Src/IP/MostMsgTx.h new file mode 100644 index 0000000..00736ae --- /dev/null +++ b/Src/IP/MostMsgTx.h @@ -0,0 +1,96 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*----------------------------------------------------------*/ +/*! \file + * \brief This file contains the CMostMsgTx class. + */ +/*----------------------------------------------------------*/ +#ifndef MOSTMSGTX_H +#define MOSTMSGTX_H + +#include <stdint.h> +#include <stdbool.h> +#include "MostMsg.h" +#include "MsgAddr.h" + + + + +/*----------------------------------------------------------*/ +/*! +* \brief class holding a MOST message which needs to be +* sent +*/ + +/*----------------------------------------------------------*/ +class CMostMsgTx : public CMostMsg +{ +private: + typedef void ( *OnMessageSent_t )( bool bSucceeded, CMostMsgTx *Msg ); + CMsgAddr *m_Addr; + uint32_t m_nTimeoutMs; + OnMessageSent_t m_MessageSent; + void *m_UserContext; + +protected: + virtual ~CMostMsgTx(); + +public: + + + /*----------------------------------------------------------*/ + /*! \brief constructs a new message + * + * \param Addr - Target address + * \param nFBlock - Function Block ID + * \param nInst - Instance ID + * \param nFunc - Function ID + * \param nOpType - Operation + * \param nPayloadLen - length of payload in bytes + * \param Payload - Payload + * \param nTimeoutMs - Timeout for sending in Milliseconds + * \param MessageSentCB - Handler called, after message was sent + * \param UserContext - a class passed to the handler + */ + /*----------------------------------------------------------*/ + CMostMsgTx( CMsgAddr *Addr, uint32_t nFBlock, uint32_t nInst, uint32_t nFunc, uint8_t nOpType, + uint32_t nPayloadLen, const uint8_t *Payload, uint32_t nTimeoutMs, OnMessageSent_t MessageSentCB, + void *UserContext ); + + + void MsgSent( bool bSuccess ); + + + + + CMsgAddr *GetAddr(); + + + + + void *GetUserContext(); +}; + + +#endif //MOSTMSGTX_H diff --git a/Src/IP/MsgAddr.cpp b/Src/IP/MsgAddr.cpp new file mode 100644 index 0000000..6c80222 --- /dev/null +++ b/Src/IP/MsgAddr.cpp @@ -0,0 +1,71 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +#include <string.h> +#include <stdio.h> +#include "MsgAddr.h" +#include "Console.h" + +CMsgAddr::CMsgAddr( const char *Addr, uint32_t nPort ) : m_nRefCount( 1 ), m_nPort( nPort ), + m_protocol( IpcUdp_V2_0 ) +{ + if( NULL != Addr ) + strncpy( m_IpAddr, Addr, sizeof( m_IpAddr ) ); +} + +CMsgAddr::CMsgAddr( const char *Addr, uint32_t nPort, IpcProtocol_t protocol ) : m_nRefCount( 1 ), m_nPort( nPort ), + m_protocol( protocol ) +{ + if( NULL != Addr ) + strncpy( m_IpAddr, Addr, sizeof( m_IpAddr ) ); +} + +CMsgAddr::~CMsgAddr() +{ +} + +void CMsgAddr::AddReference() +{ + ++m_nRefCount; +} + +void CMsgAddr::RemoveReference() +{ + if( 0 >= --m_nRefCount ) + delete this; +} + +char *CMsgAddr::GetInetAddress() +{ + return ( char * )m_IpAddr; +} + +uint32_t CMsgAddr::GetPort() +{ + return m_nPort; +} + +IpcProtocol_t CMsgAddr::GetProtocol() +{ + return m_protocol; +} diff --git a/Src/IP/MsgAddr.h b/Src/IP/MsgAddr.h new file mode 100644 index 0000000..9a3fa80 --- /dev/null +++ b/Src/IP/MsgAddr.h @@ -0,0 +1,73 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*----------------------------------------------------------*/ +/*! \file + * \brief This file contains the CMsgAddr class. + */ +/*----------------------------------------------------------*/ +#ifndef MSGADDR_H +#define MSGADDR_H +#include <stdint.h> + +typedef enum +{ + IpcUdp_V2_0 = 1, + IpcTcp_V2_0 = 2 +} IpcProtocol_t; + +/*----------------------------------------------------------*/ +/*! \brief Storage class, which holds IP address, IP port and MAC address. +*/ +/*----------------------------------------------------------*/ +class CMsgAddr +{ +private: + int32_t m_nRefCount; + char m_IpAddr[32]; + uint32_t m_nPort; + IpcProtocol_t m_protocol; + +public: + CMsgAddr( const char *Addr, uint32_t nPort ); + CMsgAddr( const char *Addr, uint32_t nPort, IpcProtocol_t protocol ); + ~CMsgAddr(); + + /*----------------------------------------------------------*/ + /*! \brief Increments the reference counter + */ + /*----------------------------------------------------------*/ + void AddReference(); + + /*----------------------------------------------------------*/ + /*! \brief Decrements the reference counter, if the value reaches 0, this object destroys it self. + */ + /*----------------------------------------------------------*/ + void RemoveReference(); + + char *GetInetAddress(); + uint32_t GetPort(); + IpcProtocol_t GetProtocol(); +}; + +#endif //MSGADDR_H diff --git a/Src/IP/MsgFilter.cpp b/Src/IP/MsgFilter.cpp new file mode 100644 index 0000000..f9684f4 --- /dev/null +++ b/Src/IP/MsgFilter.cpp @@ -0,0 +1,47 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +#include "Console.h" +#include "MsgFilter.h" + +CMsgFilter::CMsgFilter( uint32_t nFBlock, uint32_t nFunc, uint8_t nOpType, OnMsg_t MsgHandler ) +{ + m_nFBlock = nFBlock; + m_nFunc = nFunc; + m_nOpType = nOpType; + m_MsgHandler = MsgHandler; +} + +void CMsgFilter::Filter( CMsgAddr *Addr, CMostMsg *Msg ) +{ + if( NULL == Addr || NULL == Msg ) + { + ConsolePrintf( + PRIO_ERROR, RED"CMsgFilter::Filter was called with invalid parameters"RESETCOLOR"\n" ); + return; + } + if( NULL != m_MsgHandler ) + if( Msg->GetFBlock() == m_nFBlock && Msg->GetFunc() == m_nFunc + && Msg->GetOpType() == m_nOpType ) + m_MsgHandler( Addr, Msg ); +} diff --git a/Src/IP/MsgFilter.h b/Src/IP/MsgFilter.h new file mode 100644 index 0000000..72ef45f --- /dev/null +++ b/Src/IP/MsgFilter.h @@ -0,0 +1,72 @@ +/* + * Video On Demand Samples + * + * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * You may also obtain this software under a propriety license from Microchip. + * Please contact Microchip for further information. + * + */ + +/*----------------------------------------------------------*/ +/*! \file + * \brief This file contains the CMsgFilter class. + */ +/*----------------------------------------------------------*/ +#ifndef MSGFILTER_H +#define MSGFILTER_H + +#include <stdint.h> +#include "MsgAddr.h" +#include "MostMsg.h" + +typedef void ( *OnMsg_t )( CMsgAddr *Addr, CMostMsg *Msg ); + +/*----------------------------------------------------------*/ +/*! + * \brief filters messages and dispatches result to a + * handler + */ + +/*----------------------------------------------------------*/ +class CMsgFilter +{ + uint32_t m_nFBlock; + uint32_t m_nFunc; + uint8_t m_nOpType; + OnMsg_t m_MsgHandler; + +public: + + + /*----------------------------------------------------------*/ + /*! \brief construct a message filter + */ + /*----------------------------------------------------------*/ + CMsgFilter( uint32_t nFBlock, uint32_t nFunc, uint8_t nOpType, OnMsg_t MsgHandler ); + + + + + /*----------------------------------------------------------*/ + /*! \brief filter an incoming message + */ + /*----------------------------------------------------------*/ + void Filter( CMsgAddr *Addr, CMostMsg *Msg ); +}; + + +#endif //MSGFILTER_H |