1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** NetX Component */
16 /** */
17 /** Internet Control Message Protocol (ICMP) */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22 #define NX_SOURCE_CODE
23
24
25 /* Include necessary system files. */
26
27 #include "nx_api.h"
28 #include "nx_nd_cache.h"
29 #include "nx_icmpv6.h"
30
31
32 #ifdef FEATURE_NX_IPV6
33
34
35 /**************************************************************************/
36 /* */
37 /* FUNCTION RELEASE */
38 /* */
39 /* _nx_icmp_DAD_clear_NDCache_entry PORTABLE C */
40 /* 6.1 */
41 /* AUTHOR */
42 /* */
43 /* Yuxin Zhou, Microsoft Corporation */
44 /* */
45 /* DESCRIPTION */
46 /* */
47 /* INPUT */
48 /* */
49 /* ip_ptr Pointer to the IP instance */
50 /* ip_addr Neighbor IPv6 address of cache*/
51 /* entry to delete */
52 /* */
53 /* OUTPUT */
54 /* */
55 /* None */
56 /* */
57 /* CALLS */
58 /* */
59 /* tx_mutex_get Obtain exclusive lock (on table)*/
60 /* tx_mutex_put Release exclusive lock */
61 /* _nx_nd_cache_find_entry Find cache entry by IP address */
62 /* */
63 /* CALLED BY */
64 /* */
65 /* _nx_icmpv6_perform_DAD Verify IPv6 address is unique */
66 /* */
67 /* RELEASE HISTORY */
68 /* */
69 /* DATE NAME DESCRIPTION */
70 /* */
71 /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */
72 /* 09-30-2020 Yuxin Zhou Modified comment(s), */
73 /* resulting in version 6.1 */
74 /* */
75 /**************************************************************************/
_nx_icmpv6_DAD_clear_NDCache_entry(NX_IP * ip_ptr,ULONG * ip_addr)76 void _nx_icmpv6_DAD_clear_NDCache_entry(NX_IP *ip_ptr, ULONG *ip_addr)
77 {
78
79 ND_CACHE_ENTRY *NDCacheEntry;
80
81 /* Find the ND CACHE entry. */
82 if (_nx_nd_cache_find_entry(ip_ptr, ip_addr, &NDCacheEntry) == NX_SUCCESS)
83 {
84
85 /*lint -e{644} suppress variable might not be initialized, since "NDCacheEntry" was initialized in _nx_nd_cache_find_entry. */
86 NDCacheEntry -> nx_nd_cache_nd_status = ND_CACHE_STATE_INVALID;
87 }
88
89 return;
90 }
91 #endif /* FEATURE_NX_IPV6 */
92
93
