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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 Control Message Protocol (ICMP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_icmp.h"
#ifndef NX_DISABLE_IPV4
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_icmp_queue_process PORTABLE C */
/* 6.1 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes the ICMP receive packet queue. */
/* */
/* INPUT */
/* */
/* ip_ptr Pointer to IP control block */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _nx_icmp_packet_process Process ICMP packet */
/* */
/* CALLED BY */
/* */
/* _nx_ip_thread_entry IP helper thread processing */
/* */
/* 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 */
/* */
/**************************************************************************/
VOID _nx_icmp_queue_process(NX_IP *ip_ptr)
{
TX_INTERRUPT_SAVE_AREA
NX_PACKET *queue_head;
NX_PACKET *packet_ptr;
/* Disable interrupts. */
TX_DISABLE
/* Remove the ICMP message queue from the IP structure. */
queue_head = ip_ptr -> nx_ip_icmp_queue_head;
ip_ptr -> nx_ip_icmp_queue_head = NX_NULL;
/* Restore interrupts. */
TX_RESTORE
/* Walk through the entire ICMP message queue and process packets
one by one. */
while (queue_head)
{
/* Pickup the first queued ICMP message and remove it from the
ICMP queue. */
packet_ptr = queue_head;
queue_head = queue_head -> nx_packet_queue_next;
packet_ptr -> nx_packet_queue_next = NX_NULL;
/* Process the packet. */
_nx_icmp_packet_process(ip_ptr, packet_ptr);
}
}
#endif /* !NX_DISABLE_IPV4 */