1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** NetX Component                                                        */
17 /**                                                                       */
18 /**   Internet Protocol (IP)                                              */
19 /**                                                                       */
20 /**************************************************************************/
21 /**************************************************************************/
22 
23 #define NX_SOURCE_CODE
24 
25 
26 /* Include necessary system files.  */
27 
28 #include "nx_api.h"
29 #include "nx_ip.h"
30 
31 /* Bring in externs for caller checking code.  */
32 
33 NX_CALLER_CHECKING_EXTERNS
34 
35 
36 /**************************************************************************/
37 /*                                                                        */
38 /*  FUNCTION                                               RELEASE        */
39 /*                                                                        */
40 /*    _nxe_ip_address_change_notify                       PORTABLE C      */
41 /*                                                           6.1          */
42 /*  AUTHOR                                                                */
43 /*                                                                        */
44 /*    Yuxin Zhou, Microsoft Corporation                                   */
45 /*                                                                        */
46 /*  DESCRIPTION                                                           */
47 /*                                                                        */
48 /*    This function checks for errors in the IP address change notify     */
49 /*    function call.                                                      */
50 /*                                                                        */
51 /*  INPUT                                                                 */
52 /*                                                                        */
53 /*    ip_ptr                            IP control block pointer          */
54 /*    ip_address_change_notify          Application callback function     */
55 /*    additional_info                   Optional additional information   */
56 /*                                        for the callback function       */
57 /*                                                                        */
58 /*  OUTPUT                                                                */
59 /*                                                                        */
60 /*    status                            Completion status                 */
61 /*                                                                        */
62 /*  CALLS                                                                 */
63 /*                                                                        */
64 /*    _nx_ip_address_change_notify      Actual IP address change notify   */
65 /*                                        function                        */
66 /*                                                                        */
67 /*  CALLED BY                                                             */
68 /*                                                                        */
69 /*    Application Code                                                    */
70 /*                                                                        */
71 /*  RELEASE HISTORY                                                       */
72 /*                                                                        */
73 /*    DATE              NAME                      DESCRIPTION             */
74 /*                                                                        */
75 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
76 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
77 /*                                            resulting in version 6.1    */
78 /*                                                                        */
79 /**************************************************************************/
_nxe_ip_address_change_notify(NX_IP * ip_ptr,VOID (* ip_address_change_notify)(NX_IP *,VOID *),VOID * additional_info)80 UINT  _nxe_ip_address_change_notify(NX_IP *ip_ptr, VOID (*ip_address_change_notify)(NX_IP *, VOID *), VOID *additional_info)
81 {
82 
83 #ifndef NX_DISABLE_IPV4
84 UINT status;
85 
86 
87     /* Check for invalid input pointers.  */
88     if ((ip_ptr == NX_NULL) || (ip_ptr -> nx_ip_id != NX_IP_ID))
89     {
90         return(NX_PTR_ERROR);
91     }
92 
93     /* Check for appropriate caller.  */
94     NX_INIT_AND_THREADS_CALLER_CHECKING
95 
96     /* Call actual IP address change notify function.  */
97     status =  _nx_ip_address_change_notify(ip_ptr, ip_address_change_notify, additional_info);
98 
99     /* Return completion status.  */
100     return(status);
101 #else /* NX_DISABLE_IPV4  */
102     NX_PARAMETER_NOT_USED(ip_ptr);
103     NX_PARAMETER_NOT_USED(ip_address_change_notify);
104     NX_PARAMETER_NOT_USED(additional_info);
105 
106     return(NX_NOT_SUPPORTED);
107 #endif /* !NX_DISABLE_IPV4  */
108 }
109 
110