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...
...
...
#define NX_SOURCE_CODE
#include "nx_api.h"
#include "nx_arp.h"
#include "nx_packet.h"
#ifndef NX_DISABLE_IPV4...
...
UINT _nx_arp_announce_send(NX_IP *ip_ptr, UINT interface_index)
{
NX_INTERFACE *nx_interface;
NX_PACKET *request_ptr;
ULONG *message_ptr;
NX_IP_DRIVER driver_request;
#ifdef NX_ENABLE_DUAL_PACKET_POOL
if (_nx_packet_allocate(ip_ptr -> nx_ip_auxiliary_packet_pool, &request_ptr, (NX_PHYSICAL_HEADER + NX_ARP_MESSAGE_SIZE), NX_NO_WAIT))
{
if (ip_ptr -> nx_ip_auxiliary_packet_pool != ip_ptr -> nx_ip_default_packet_pool)
#endif
{
if (_nx_packet_allocate(ip_ptr -> nx_ip_default_packet_pool, &request_ptr, (NX_PHYSICAL_HEADER + NX_ARP_MESSAGE_SIZE), NX_NO_WAIT))
{
return(NX_NO_PACKET);
}if (_nx_packet_allocate(ip_ptr -> nx_ip_default_packet_pool, &request_ptr, (NX_PHYSICAL_HEADER + NX_ARP_MESSAGE_SIZE), NX_NO_WAIT)) { ... }
...}
#ifdef NX_ENABLE_DUAL_PACKET_POOL
else
{
return(NX_NO_PACKET);
}else { ... }
}/* ... */
if (_nx_packet_allocate(ip_ptr -> nx_ip_auxiliary_packet_pool, &request_ptr, (NX_PHYSICAL_HEADER + NX_ARP_MESSAGE_SIZE), NX_NO_WAIT)) { ... }#endif
NX_PACKET_DEBUG(__FILE__, __LINE__, request_ptr);
tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
nx_interface = &(ip_ptr -> nx_ip_interface[interface_index]);
request_ptr -> nx_packet_address.nx_packet_interface_ptr = nx_interface;
#ifndef NX_DISABLE_ARP_INFO
ip_ptr -> nx_ip_arp_requests_sent++;/* ... */
#endif
NX_TRACE_IN_LINE_INSERT(NX_TRACE_INTERNAL_ARP_REQUEST_SEND, ip_ptr, nx_interface -> nx_interface_ip_address, request_ptr, 0, NX_TRACE_INTERNAL_EVENTS, 0, 0);
request_ptr -> nx_packet_length = NX_ARP_MESSAGE_SIZE;
request_ptr -> nx_packet_prepend_ptr -= NX_ARP_MESSAGE_SIZE;
message_ptr = (ULONG *)request_ptr -> nx_packet_prepend_ptr;
*message_ptr = (ULONG)(NX_ARP_HARDWARE_TYPE << 16) | (NX_ARP_PROTOCOL_TYPE);
*(message_ptr+1) = (ULONG)(NX_ARP_HARDWARE_SIZE << 24) | (NX_ARP_PROTOCOL_SIZE << 16) |
NX_ARP_OPTION_REQUEST;
*(message_ptr + 2) = (ULONG)(nx_interface -> nx_interface_physical_address_msw << 16) |
(nx_interface -> nx_interface_physical_address_lsw >> 16);
*(message_ptr + 3) = (ULONG)(nx_interface -> nx_interface_physical_address_lsw << 16) |
(nx_interface -> nx_interface_ip_address >> 16);
*(message_ptr + 4) = (ULONG)(nx_interface -> nx_interface_ip_address << 16);
*(message_ptr + 5) = (ULONG)0;
*(message_ptr + 6) = (ULONG)nx_interface -> nx_interface_ip_address;
/* ... */
NX_CHANGE_ULONG_ENDIAN(*(message_ptr));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 1));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 2));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 3));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 4));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 5));
NX_CHANGE_ULONG_ENDIAN(*(message_ptr + 6));
driver_request.nx_ip_driver_ptr = ip_ptr;
driver_request.nx_ip_driver_command = NX_LINK_ARP_SEND;
driver_request.nx_ip_driver_packet = request_ptr;
driver_request.nx_ip_driver_physical_address_msw = 0xFFFFUL;
driver_request.nx_ip_driver_physical_address_lsw = 0xFFFFFFFFUL;
driver_request.nx_ip_driver_interface = nx_interface;
NX_TRACE_IN_LINE_INSERT(NX_TRACE_INTERNAL_IO_DRIVER_ARP_SEND, ip_ptr, request_ptr, request_ptr -> nx_packet_length, 0, NX_TRACE_INTERNAL_EVENTS, 0, 0);
NX_PACKET_DEBUG(__FILE__, __LINE__, request_ptr);
(nx_interface -> nx_interface_link_driver_entry)(&driver_request);
tx_mutex_put(&(ip_ptr -> nx_ip_protection));
return(NX_SUCCESS);
}{ ... }
#endif/* ... */