netxduo
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Outline
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#define NX_SOURCE_CODE
#include "nx_api.h"
#include "nx_ip.h"
#include "nx_packet.h"
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_nxe_ip_raw_packet_send(NX_IP *, NX_PACKET **, ULONG, ULONG)
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SourceVuSTM32 Libraries and Samplesnetxduocommon/src/nxe_ip_raw_packet_send.c
 
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/**************************************************************************/ /* */ /* Copyright (c) Microsoft Corporation. All rights reserved. */ /* */ /* This software is licensed under the Microsoft Software License */ /* Terms for Microsoft Azure RTOS. Full text of the license can be */ /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ /* and in the root directory of this software. */ /* */... /**************************************************************************/ ... /**************************************************************************/ /**************************************************************************/ /** */ /** NetX Component */ /** */ /** Internet Protocol (IP) */ /** */... /**************************************************************************/ /**************************************************************************/ #define NX_SOURCE_CODE /* Include necessary system files. */ #include "nx_api.h" #include "nx_ip.h" #include "nx_packet.h" /* Bring in externs for caller checking code. */ NX_CALLER_CHECKING_EXTERNS ... /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _nxe_ip_raw_packet_send PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* Yuxin Zhou, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function checks for errors in the IP raw packet send */ /* function call. */ /* */ /* INPUT */ /* */ /* ip_ptr Pointer to IP control block */ /* packet_ptr Pointer to packet to send */ /* destination_ip Destination IP address */ /* type_of_service Type of service for packet */ /* */ /* OUTPUT */ /* */ /* status Completion status */ /* */ /* CALLS */ /* */ /* _nx_ip_raw_packet_send Actual IP raw packet send */ /* function */ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* RELEASE HISTORY */ /* */ /* DATE NAME DESCRIPTION */ /* */ /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ /* 09-30-2020 Yuxin Zhou Modified comment(s), */ /* resulting in version 6.1 */ /* */... /**************************************************************************/ UINT _nxe_ip_raw_packet_send(NX_IP *ip_ptr, NX_PACKET **packet_ptr_ptr, ULONG destination_ip, ULONG type_of_service) { #ifndef NX_DISABLE_IPV4 UINT status; NX_PACKET *packet_ptr; /* Setup packet pointer. */ packet_ptr = *packet_ptr_ptr; /* Check for invalid input pointers. */ /*lint -e{923} suppress cast of ULONG to pointer. */ if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID) || (packet_ptr == NX_NULL) || (packet_ptr -> nx_packet_union_next.nx_packet_tcp_queue_next != ((NX_PACKET *)NX_PACKET_ALLOCATED))) { return(NX_PTR_ERROR); }if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID) || (packet_ptr == NX_NULL) || (packet_ptr -> nx_packet_union_next.nx_packet_tcp_queue_next != ((NX_PACKET *)NX_PACKET_ALLOCATED))) { ... } /* Check to see if IP raw packet processing is enabled. */ if (!ip_ptr -> nx_ip_raw_ip_processing) { return(NX_NOT_ENABLED); }if (!ip_ptr -> nx_ip_raw_ip_processing) { ... } /* Check for invalid IP address. */ if (!destination_ip) { return(NX_IP_ADDRESS_ERROR); }if (!destination_ip) { ... } /* Check for valid type of service. */ if (type_of_service & ~(NX_IP_TOS_MASK)) { return(NX_OPTION_ERROR); }if (type_of_service & ~(NX_IP_TOS_MASK)) { ... } /* Check for an invalid packet prepend pointer. */ /*lint -e{946} suppress pointer subtraction, since it is necessary. */ if ((packet_ptr -> nx_packet_prepend_ptr - sizeof(NX_IPV4_HEADER)) < packet_ptr -> nx_packet_data_start) { return(NX_UNDERFLOW); }if ((packet_ptr -> nx_packet_prepend_ptr - sizeof(NX_IPV4_HEADER)) < packet_ptr -> nx_packet_data_start) { ... } /* Check for an invalid packet append pointer. */ /*lint -e{946} suppress pointer subtraction, since it is necessary. */ if (packet_ptr -> nx_packet_append_ptr > packet_ptr -> nx_packet_data_end) { return(NX_OVERFLOW); }if (packet_ptr -> nx_packet_append_ptr > packet_ptr -> nx_packet_data_end) { ... } /* Check for appropriate caller. */ NX_THREADS_ONLY_CALLER_CHECKING /* Call actual IP raw packet send function. */ status = _nx_ip_raw_packet_send(ip_ptr, packet_ptr, destination_ip, type_of_service); /* Determine if the raw packet send was successful. */ if (status == NX_SUCCESS) { /* Yes, now clear the application's packet pointer so it can't be accidentally used again by the application. This is only done when error checking is enabled. *//* ... */ *packet_ptr_ptr = NX_NULL; }if (status == NX_SUCCESS) { ... } /* Return completion status. */ return(status);/* ... */ #else /* NX_DISABLE_IPV4 */ NX_PARAMETER_NOT_USED(ip_ptr); NX_PARAMETER_NOT_USED(packet_ptr_ptr); NX_PARAMETER_NOT_USED(destination_ip); NX_PARAMETER_NOT_USED(type_of_service); return(NX_NOT_SUPPORTED);/* ... */ #endif /* !NX_DISABLE_IPV4 */ }{ ... }
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