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351 lines
16 KiB
C
351 lines
16 KiB
C
8 years ago
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/*
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* FreeRTOS+TCP Labs Build 160919 (C) 2016 Real Time Engineers ltd.
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* Authors include Hein Tibosch and Richard Barry
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*
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*******************************************************************************
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***** NOTE ******* NOTE ******* NOTE ******* NOTE ******* NOTE ******* NOTE ***
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*** ***
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*** ***
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*** FREERTOS+TCP IS STILL IN THE LAB (mainly because the FTP and HTTP ***
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*** demos have a dependency on FreeRTOS+FAT, which is only in the Labs ***
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*** download): ***
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*** ***
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*** FreeRTOS+TCP is functional and has been used in commercial products ***
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*** for some time. Be aware however that we are still refining its ***
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*** design, the source code does not yet quite conform to the strict ***
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*** coding and style standards mandated by Real Time Engineers ltd., and ***
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*** the documentation and testing is not necessarily complete. ***
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*** ***
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*** PLEASE REPORT EXPERIENCES USING THE SUPPORT RESOURCES FOUND ON THE ***
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*** URL: http://www.FreeRTOS.org/contact Active early adopters may, at ***
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*** the sole discretion of Real Time Engineers Ltd., be offered versions ***
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*** under a license other than that described below. ***
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*** ***
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*** ***
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***** NOTE ******* NOTE ******* NOTE ******* NOTE ******* NOTE ******* NOTE ***
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*******************************************************************************
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*
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* FreeRTOS+TCP can be used under two different free open source licenses. The
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* license that applies is dependent on the processor on which FreeRTOS+TCP is
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* executed, as follows:
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*
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* If FreeRTOS+TCP is executed on one of the processors listed under the Special
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* License Arrangements heading of the FreeRTOS+TCP license information web
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* page, then it can be used under the terms of the FreeRTOS Open Source
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* License. If FreeRTOS+TCP is used on any other processor, then it can be used
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* under the terms of the GNU General Public License V2. Links to the relevant
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* licenses follow:
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*
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* The FreeRTOS+TCP License Information Page: http://www.FreeRTOS.org/tcp_license
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* The FreeRTOS Open Source License: http://www.FreeRTOS.org/license
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* The GNU General Public License Version 2: http://www.FreeRTOS.org/gpl-2.0.txt
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*
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* FreeRTOS+TCP is distributed in the hope that it will be useful. You cannot
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* use FreeRTOS+TCP unless you agree that you use the software 'as is'.
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* FreeRTOS+TCP is provided WITHOUT ANY WARRANTY; without even the implied
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* warranties of NON-INFRINGEMENT, MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. Real Time Engineers Ltd. disclaims all conditions and terms, be they
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* implied, expressed, or statutory.
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*
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* 1 tab == 4 spaces!
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*
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* http://www.FreeRTOS.org
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* http://www.FreeRTOS.org/plus
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* http://www.FreeRTOS.org/labs
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*
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*/
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#ifndef FREERTOS_IP_H
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#define FREERTOS_IP_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Application level configuration options. */
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#include "FreeRTOSIPConfig.h"
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#include "FreeRTOSIPConfigDefaults.h"
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#include "IPTraceMacroDefaults.h"
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/* Some constants defining the sizes of several parts of a packet */
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#define ipSIZE_OF_ETH_HEADER 14u
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#define ipSIZE_OF_IPv4_HEADER 20u
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#define ipSIZE_OF_IGMP_HEADER 8u
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#define ipSIZE_OF_ICMP_HEADER 8u
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#define ipSIZE_OF_UDP_HEADER 8u
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#define ipSIZE_OF_TCP_HEADER 20u
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/* The number of octets in the MAC and IP addresses respectively. */
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#define ipMAC_ADDRESS_LENGTH_BYTES ( 6 )
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#define ipIP_ADDRESS_LENGTH_BYTES ( 4 )
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/* IP protocol definitions. */
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#define ipPROTOCOL_ICMP ( 1 )
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#define ipPROTOCOL_IGMP ( 2 )
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#define ipPROTOCOL_TCP ( 6 )
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#define ipPROTOCOL_UDP ( 17 )
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/* Dimensions the buffers that are filled by received Ethernet frames. */
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#define ipSIZE_OF_ETH_CRC_BYTES ( 4UL )
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#define ipSIZE_OF_ETH_OPTIONAL_802_1Q_TAG_BYTES ( 4UL )
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#define ipTOTAL_ETHERNET_FRAME_SIZE ( ( ( uint32_t ) ipconfigNETWORK_MTU ) + ( ( uint32_t ) ipSIZE_OF_ETH_HEADER ) + ipSIZE_OF_ETH_CRC_BYTES + ipSIZE_OF_ETH_OPTIONAL_802_1Q_TAG_BYTES )
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/*_RB_ Comment may need updating. */
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/* Space left at the beginning of a network buffer storage area to store a
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pointer back to the network buffer. Should be a multiple of 8 to ensure 8 byte
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alignment is maintained on architectures that require it.
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In order to get a 32-bit alignment of network packets, an offset of 2 bytes
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would be desirable, as defined by ipconfigPACKET_FILLER_SIZE. So the malloc'd
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buffer will have the following contents:
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uint32_t pointer; // word-aligned
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uchar_8 filler[6];
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<< ETH-header >> // half-word-aligned
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uchar_8 dest[6]; // start of pucEthernetBuffer
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uchar_8 dest[6];
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uchar16_t type;
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<< IP-header >> // word-aligned
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uint8_t ucVersionHeaderLength;
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etc
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*/
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#if( ipconfigBUFFER_PADDING != 0 )
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#define ipBUFFER_PADDING ipconfigBUFFER_PADDING
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#else
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#define ipBUFFER_PADDING ( 8u + ipconfigPACKET_FILLER_SIZE )
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#endif
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/* The structure used to store buffers and pass them around the network stack.
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Buffers can be in use by the stack, in use by the network interface hardware
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driver, or free (not in use). */
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typedef struct xNETWORK_BUFFER
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{
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ListItem_t xBufferListItem; /* Used to reference the buffer form the free buffer list or a socket. */
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uint32_t ulIPAddress; /* Source or destination IP address, depending on usage scenario. */
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uint8_t *pucEthernetBuffer; /* Pointer to the start of the Ethernet frame. */
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size_t xDataLength; /* Starts by holding the total Ethernet frame length, then the UDP/TCP payload length. */
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uint16_t usPort; /* Source or destination port, depending on usage scenario. */
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uint16_t usBoundPort; /* The port to which a transmitting socket is bound. */
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#if( ipconfigUSE_LINKED_RX_MESSAGES != 0 )
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struct xNETWORK_BUFFER *pxNextBuffer; /* Possible optimisation for expert users - requires network driver support. */
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#endif
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} NetworkBufferDescriptor_t;
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#include "pack_struct_start.h"
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struct xMAC_ADDRESS
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{
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uint8_t ucBytes[ ipMAC_ADDRESS_LENGTH_BYTES ];
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}
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#include "pack_struct_end.h"
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typedef struct xMAC_ADDRESS MACAddress_t;
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typedef enum eNETWORK_EVENTS
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{
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eNetworkUp, /* The network is configured. */
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eNetworkDown /* The network connection has been lost. */
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} eIPCallbackEvent_t;
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typedef enum ePING_REPLY_STATUS
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{
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eSuccess = 0, /* A correct reply has been received for an outgoing ping. */
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eInvalidChecksum, /* A reply was received for an outgoing ping but the checksum of the reply was incorrect. */
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eInvalidData /* A reply was received to an outgoing ping but the payload of the reply was not correct. */
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} ePingReplyStatus_t;
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/* Endian related definitions. */
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#if( ipconfigBYTE_ORDER == pdFREERTOS_LITTLE_ENDIAN )
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/* FreeRTOS_htons / FreeRTOS_htonl: some platforms might have built-in versions
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using a single instruction so allow these versions to be overridden. */
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#ifndef FreeRTOS_htons
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#define FreeRTOS_htons( usIn ) ( (uint16_t) ( ( ( usIn ) << 8U ) | ( ( usIn ) >> 8U ) ) )
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#endif
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#ifndef FreeRTOS_htonl
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#define FreeRTOS_htonl( ulIn ) \
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( \
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( uint32_t ) \
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( \
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( ( ( ( uint32_t ) ( ulIn ) ) ) << 24 ) | \
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( ( ( ( uint32_t ) ( ulIn ) ) & 0x0000ff00UL ) << 8 ) | \
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( ( ( ( uint32_t ) ( ulIn ) ) & 0x00ff0000UL ) >> 8 ) | \
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( ( ( ( uint32_t ) ( ulIn ) ) ) >> 24 ) \
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) \
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)
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#endif
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#else /* ipconfigBYTE_ORDER */
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#define FreeRTOS_htons( x ) ( ( uint16_t ) ( x ) )
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#define FreeRTOS_htonl( x ) ( ( uint32_t ) ( x ) )
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#endif /* ipconfigBYTE_ORDER == pdFREERTOS_LITTLE_ENDIAN */
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#define FreeRTOS_ntohs( x ) FreeRTOS_htons( x )
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#define FreeRTOS_ntohl( x ) FreeRTOS_htonl( x )
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#if( ipconfigHAS_INLINE_FUNCTIONS == 1 )
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static portINLINE int32_t FreeRTOS_max_int32 (int32_t a, int32_t b);
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static portINLINE uint32_t FreeRTOS_max_uint32 (uint32_t a, uint32_t b);
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static portINLINE int32_t FreeRTOS_min_int32 (int32_t a, int32_t b);
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static portINLINE uint32_t FreeRTOS_min_uint32 (uint32_t a, uint32_t b);
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static portINLINE uint32_t FreeRTOS_round_up (uint32_t a, uint32_t d);
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static portINLINE uint32_t FreeRTOS_round_down (uint32_t a, uint32_t d);
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static portINLINE BaseType_t FreeRTOS_min_BaseType (BaseType_t a, BaseType_t b);
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static portINLINE BaseType_t FreeRTOS_max_BaseType (BaseType_t a, BaseType_t b);
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static portINLINE UBaseType_t FreeRTOS_max_UBaseType (UBaseType_t a, UBaseType_t b);
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static portINLINE UBaseType_t FreeRTOS_min_UBaseType (UBaseType_t a, UBaseType_t b);
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static portINLINE int32_t FreeRTOS_max_int32 (int32_t a, int32_t b) { return a >= b ? a : b; }
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static portINLINE uint32_t FreeRTOS_max_uint32 (uint32_t a, uint32_t b) { return a >= b ? a : b; }
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static portINLINE int32_t FreeRTOS_min_int32 (int32_t a, int32_t b) { return a <= b ? a : b; }
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static portINLINE uint32_t FreeRTOS_min_uint32 (uint32_t a, uint32_t b) { return a <= b ? a : b; }
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static portINLINE uint32_t FreeRTOS_round_up (uint32_t a, uint32_t d) { return d * ( ( a + d - 1u ) / d ); }
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static portINLINE uint32_t FreeRTOS_round_down (uint32_t a, uint32_t d) { return d * ( a / d ); }
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static portINLINE BaseType_t FreeRTOS_max_BaseType (BaseType_t a, BaseType_t b) { return a >= b ? a : b; }
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static portINLINE UBaseType_t FreeRTOS_max_UBaseType (UBaseType_t a, UBaseType_t b) { return a >= b ? a : b; }
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static portINLINE BaseType_t FreeRTOS_min_BaseType (BaseType_t a, BaseType_t b) { return a <= b ? a : b; }
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static portINLINE UBaseType_t FreeRTOS_min_UBaseType (UBaseType_t a, UBaseType_t b) { return a <= b ? a : b; }
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#else
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#define FreeRTOS_max_int32(a,b) ( ( ( int32_t ) ( a ) ) >= ( ( int32_t ) ( b ) ) ? ( ( int32_t ) ( a ) ) : ( ( int32_t ) ( b ) ) )
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#define FreeRTOS_max_uint32(a,b) ( ( ( uint32_t ) ( a ) ) >= ( ( uint32_t ) ( b ) ) ? ( ( uint32_t ) ( a ) ) : ( ( uint32_t ) ( b ) ) )
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#define FreeRTOS_min_int32(a,b) ( ( ( int32_t ) a ) <= ( ( int32_t ) b ) ? ( ( int32_t ) a ) : ( ( int32_t ) b ) )
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#define FreeRTOS_min_uint32(a,b) ( ( ( uint32_t ) a ) <= ( ( uint32_t ) b ) ? ( ( uint32_t ) a ) : ( ( uint32_t ) b ) )
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/* Round-up: a = d * ( ( a + d - 1 ) / d ) */
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#define FreeRTOS_round_up(a,d) ( ( ( uint32_t ) ( d ) ) * ( ( ( ( uint32_t ) ( a ) ) + ( ( uint32_t ) ( d ) ) - 1UL ) / ( ( uint32_t ) ( d ) ) ) )
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#define FreeRTOS_round_down(a,d) ( ( ( uint32_t ) ( d ) ) * ( ( ( uint32_t ) ( a ) ) / ( ( uint32_t ) ( d ) ) ) )
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#define FreeRTOS_max_BaseType(a, b) ( ( ( BaseType_t ) ( a ) ) >= ( ( BaseType_t ) ( b ) ) ? ( ( BaseType_t ) ( a ) ) : ( ( BaseType_t ) ( b ) ) )
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#define FreeRTOS_max_UBaseType(a, b) ( ( ( UBaseType_t ) ( a ) ) >= ( ( UBaseType_t ) ( b ) ) ? ( ( UBaseType_t ) ( a ) ) : ( ( UBaseType_t ) ( b ) ) )
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#define FreeRTOS_min_BaseType(a, b) ( ( ( BaseType_t ) ( a ) ) <= ( ( BaseType_t ) ( b ) ) ? ( ( BaseType_t ) ( a ) ) : ( ( BaseType_t ) ( b ) ) )
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#define FreeRTOS_min_UBaseType(a, b) ( ( ( UBaseType_t ) ( a ) ) <= ( ( UBaseType_t ) ( b ) ) ? ( ( UBaseType_t ) ( a ) ) : ( ( UBaseType_t ) ( b ) ) )
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#endif /* ipconfigHAS_INLINE_FUNCTIONS */
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#define pdMS_TO_MIN_TICKS( xTimeInMs ) ( pdMS_TO_TICKS( ( xTimeInMs ) ) < ( ( TickType_t ) 1 ) ? ( ( TickType_t ) 1 ) : pdMS_TO_TICKS( ( xTimeInMs ) ) )
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#ifndef pdTRUE_SIGNED
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/* Temporary solution: eventually the defines below will appear in 'Source\include\projdefs.h' */
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#define pdTRUE_SIGNED pdTRUE
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#define pdFALSE_SIGNED pdFALSE
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#define pdTRUE_UNSIGNED ( ( UBaseType_t ) 1u )
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#define pdFALSE_UNSIGNED ( ( UBaseType_t ) 0u )
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#endif
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/*
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* FULL, UP-TO-DATE AND MAINTAINED REFERENCE DOCUMENTATION FOR ALL THESE
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* FUNCTIONS IS AVAILABLE ON THE FOLLOWING URL:
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* http://www.FreeRTOS.org/FreeRTOS-Plus/FreeRTOS_Plus_TCP/FreeRTOS_TCP_API_Functions.html
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*/
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BaseType_t FreeRTOS_IPInit( const uint8_t ucIPAddress[ ipIP_ADDRESS_LENGTH_BYTES ],
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const uint8_t ucNetMask[ ipIP_ADDRESS_LENGTH_BYTES ],
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const uint8_t ucGatewayAddress[ ipIP_ADDRESS_LENGTH_BYTES ],
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const uint8_t ucDNSServerAddress[ ipIP_ADDRESS_LENGTH_BYTES ],
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const uint8_t ucMACAddress[ ipMAC_ADDRESS_LENGTH_BYTES ] );
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void * FreeRTOS_GetUDPPayloadBuffer( size_t xRequestedSizeBytes, TickType_t xBlockTimeTicks );
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void FreeRTOS_GetAddressConfiguration( uint32_t *pulIPAddress, uint32_t *pulNetMask, uint32_t *pulGatewayAddress, uint32_t *pulDNSServerAddress );
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void FreeRTOS_SetAddressConfiguration( const uint32_t *pulIPAddress, const uint32_t *pulNetMask, const uint32_t *pulGatewayAddress, const uint32_t *pulDNSServerAddress );
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BaseType_t FreeRTOS_SendPingRequest( uint32_t ulIPAddress, size_t xNumberOfBytesToSend, TickType_t xBlockTimeTicks );
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void FreeRTOS_ReleaseUDPPayloadBuffer( void *pvBuffer );
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const uint8_t * FreeRTOS_GetMACAddress( void );
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void vApplicationIPNetworkEventHook( eIPCallbackEvent_t eNetworkEvent );
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void vApplicationPingReplyHook( ePingReplyStatus_t eStatus, uint16_t usIdentifier );
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uint32_t FreeRTOS_GetIPAddress( void );
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void FreeRTOS_SetIPAddress( uint32_t ulIPAddress );
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void FreeRTOS_SetNetmask( uint32_t ulNetmask );
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void FreeRTOS_SetGatewayAddress( uint32_t ulGatewayAddress );
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uint32_t FreeRTOS_GetGatewayAddress( void );
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uint32_t FreeRTOS_GetDNSServerAddress( void );
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uint32_t FreeRTOS_GetNetmask( void );
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void FreeRTOS_OutputARPRequest( uint32_t ulIPAddress );
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BaseType_t FreeRTOS_IsNetworkUp( void );
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#if( ipconfigCHECK_IP_QUEUE_SPACE != 0 )
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UBaseType_t uxGetMinimumIPQueueSpace( void );
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#endif
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/*
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* Defined in FreeRTOS_Sockets.c
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* //_RB_ Don't think this comment is correct. If this is for internal use only it should appear after all the public API functions and not start with FreeRTOS_.
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* Socket has had activity, reset the timer so it will not be closed
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* because of inactivity
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*/
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const char *FreeRTOS_GetTCPStateName( UBaseType_t ulState);
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/* _HT_ Temporary: show all valid ARP entries
|
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*/
|
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void FreeRTOS_PrintARPCache( void );
|
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void FreeRTOS_ClearARP( void );
|
||
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#if( ipconfigDHCP_REGISTER_HOSTNAME == 1 )
|
||
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||
|
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/* DHCP has an option for clients to register their hostname. It doesn't
|
||
|
|
have much use, except that a device can be found in a router along with its
|
||
|
|
name. If this option is used the callback below must be provided by the
|
||
|
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application writer to return a const string, denoting the device's name. */
|
||
|
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const char *pcApplicationHostnameHook( void );
|
||
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||
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#endif /* ipconfigDHCP_REGISTER_HOSTNAME */
|
||
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||
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||
|
|
/* For backward compatibility define old structure names to the newer equivalent
|
||
|
|
structure name. */
|
||
|
|
#ifndef ipconfigENABLE_BACKWARD_COMPATIBILITY
|
||
|
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#define ipconfigENABLE_BACKWARD_COMPATIBILITY 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if( ipconfigENABLE_BACKWARD_COMPATIBILITY == 1 )
|
||
|
|
#define xIPStackEvent_t IPStackEvent_t
|
||
|
|
#define xNetworkBufferDescriptor_t NetworkBufferDescriptor_t
|
||
|
|
#define xMACAddress_t MACAddress_t
|
||
|
|
#define xWinProperties_t WinProperties_t
|
||
|
|
#define xSocket_t Socket_t
|
||
|
|
#define xSocketSet_t SocketSet_t
|
||
|
|
#define ipSIZE_OF_IP_HEADER ipSIZE_OF_IPv4_HEADER
|
||
|
|
|
||
|
|
/* Since August 2016, the public types and fields below have changed name:
|
||
|
|
abbreviations TCP/UDP are now written in capitals, and type names now end with "_t". */
|
||
|
|
#define FOnConnected FOnConnected_t
|
||
|
|
#define FOnTcpReceive FOnTCPReceive_t
|
||
|
|
#define FOnTcpSent FOnTCPSent_t
|
||
|
|
#define FOnUdpReceive FOnUDPReceive_t
|
||
|
|
#define FOnUdpSent FOnUDPSent_t
|
||
|
|
|
||
|
|
#define pOnTcpConnected pxOnTCPConnected
|
||
|
|
#define pOnTcpReceive pxOnTCPReceive
|
||
|
|
#define pOnTcpSent pxOnTCPSent
|
||
|
|
#define pOnUdpReceive pxOnUDPReceive
|
||
|
|
#define pOnUdpSent pxOnUDPSent
|
||
|
|
|
||
|
|
#define FOnUdpSent FOnUDPSent_t
|
||
|
|
#define FOnTcpSent FOnTCPSent_t
|
||
|
|
#endif /* ipconfigENABLE_BACKWARD_COMPATIBILITY */
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
} /* extern "C" */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* FREERTOS_IP_H */
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
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|
||
|
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|
||
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