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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2025-present Eclipse ThreadX Contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Component */
/** */
/** Internet Protocol (IP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_ip.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_ip_raw_packet_source_send PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function sends a raw IP packet through the specified IP */
/* source. */
/* */
/* INPUT */
/* */
/* ip_ptr Pointer to IP control block */
/* packet_ptr Pointer to packet to send */
/* destination_ip Destination IP address */
/* address_index Index to the IPv6 address */
/* type_of_service Type of service for packet */
/* */
/* OUTPUT */
/* */
/* status Completion status */
/* */
/* CALLS */
/* */
/* nx_ip_packet_send Core IP packet send service */
/* nx_ip_route_find Find a suitable outgoing */
/* interface. */
/* tx_mutex_get Get protection mutex */
/* tx_mutex_put Put protection mutex */
/* */
/* CALLED BY */
/* */
/* Application */
/* */
/**************************************************************************/
UINT _nx_ip_raw_packet_source_send(NX_IP *ip_ptr, NX_PACKET *packet_ptr,
ULONG destination_ip, UINT address_index, ULONG type_of_service)
{
#ifndef NX_DISABLE_IPV4
ULONG next_hop_address;
/* Add debug information. */
NX_PACKET_DEBUG(__FILE__, __LINE__, packet_ptr);
/* Store interface information into the packet structure. */
packet_ptr -> nx_packet_address.nx_packet_interface_ptr = &(ip_ptr -> nx_ip_interface[address_index]);
/* Get mutex protection. */
tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
/* Figure out a suitable outgoing interface. */
_nx_ip_route_find(ip_ptr, destination_ip, &packet_ptr -> nx_packet_address.nx_packet_interface_ptr, &next_hop_address);
/* If trace is enabled, insert this event into the trace buffer. */
NX_TRACE_IN_LINE_INSERT(NX_TRACE_IP_RAW_PACKET_SEND, ip_ptr, packet_ptr, destination_ip, type_of_service, NX_TRACE_IP_EVENTS, 0, 0);
/* Yes, raw packet sending and receiving is enabled send packet! */
/*lint -e{644} suppress variable might not be initialized, since "next_hop_address" was initialized in _nx_ip_route_find. */
_nx_ip_packet_send(ip_ptr, packet_ptr, destination_ip, type_of_service, NX_IP_TIME_TO_LIVE, NX_IP_RAW, NX_FRAGMENT_OKAY, next_hop_address);
/* Release mutex protection. */
tx_mutex_put(&(ip_ptr -> nx_ip_protection));
/* Return a successful status! */
return(NX_SUCCESS);
#else /* NX_DISABLE_IPV4 */
NX_PARAMETER_NOT_USED(ip_ptr);
NX_PARAMETER_NOT_USED(packet_ptr);
NX_PARAMETER_NOT_USED(destination_ip);
NX_PARAMETER_NOT_USED(address_index);
NX_PARAMETER_NOT_USED(type_of_service);
return(NX_NOT_SUPPORTED);
#endif /* !NX_DISABLE_IPV4 */
}
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