blob: 3aec58ec20ff7df192cf9b6eaed00ea6ab3b258e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/***************************************************************************
* 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 Control Message Protocol (ICMP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_ipv6.h"
#include "nx_icmpv6.h"
#ifdef NX_IPSEC_ENABLE
#include "nx_ipsec.h"
#endif /* NX_IPSEC_ENABLE */
#ifdef FEATURE_NX_IPV6
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_icmpv6_DAD_failure PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function is called when the DAD process determines that a */
/* duplicate address is present on the local network. The interface */
/* is set to an invalid state. */
/* */
/* INPUT */
/* */
/* ip_ptr IP stack instance */
/* ipv6_address The local IPv6 interface */
/* that detects the failure. */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* [ipv6_address_change_notify] User callback function */
/* */
/* CALLED BY */
/* */
/* _nx_icmpv6_process_na */
/* */
/**************************************************************************/
#ifndef NX_DISABLE_IPV6_DAD
VOID _nx_icmpv6_DAD_failure(NX_IP *ip_ptr, NXD_IPV6_ADDRESS *ipv6_address)
{
#ifdef NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY
UINT interface_index;
UINT ipv6_addr_index;
#endif /* NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY */
NXD_IPV6_ADDRESS *address_ptr;
/* Set the interface to an invalid state. */
ipv6_address -> nxd_ipv6_address_state = NX_IPV6_ADDR_STATE_UNKNOWN;
ipv6_address -> nxd_ipv6_address_valid = NX_FALSE;
/* Indicate the DAD process is disabled. */
ipv6_address -> nxd_ipv6_address_DupAddrDetectTransmit = 0;
#ifdef NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY
if (ip_ptr -> nx_ipv6_address_change_notify)
{
ipv6_addr_index = (ULONG)ipv6_address -> nxd_ipv6_address_index;
interface_index = (ULONG)ipv6_address -> nxd_ipv6_address_attached -> nx_interface_index;
ip_ptr -> nx_ipv6_address_change_notify(ip_ptr, NX_IPV6_ADDRESS_DAD_FAILURE, interface_index, ipv6_addr_index, &ipv6_address -> nxd_ipv6_address[0]);
}
#else
NX_PARAMETER_NOT_USED(ip_ptr);
#endif /* NX_ENABLE_IPV6_ADDRESS_CHANGE_NOTIFY */
/* Remove address from interface. */
if (ipv6_address == ipv6_address -> nxd_ipv6_address_attached -> nxd_interface_ipv6_address_list_head)
{
ipv6_address -> nxd_ipv6_address_attached -> nxd_interface_ipv6_address_list_head = ipv6_address -> nxd_ipv6_address_next;
}
else
{
for (address_ptr = ipv6_address -> nxd_ipv6_address_attached -> nxd_interface_ipv6_address_list_head;
address_ptr != NX_NULL;
address_ptr = address_ptr -> nxd_ipv6_address_next)
{
if (address_ptr -> nxd_ipv6_address_next == ipv6_address)
{
address_ptr -> nxd_ipv6_address_next = ipv6_address -> nxd_ipv6_address_next;
}
}
}
}
#endif /* NX_DISABLE_IPV6_DAD */
#endif /* FEATURE_NX_IPV6 */
|
