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 Group Management Protocol (IGMP)                           */
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_igmp.h"
30 
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _nx_igmp_multicast_leave                            PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Yuxin Zhou, Microsoft Corporation                                   */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    This function handles the request to leave the specified multicast  */
45 /*    group.                                                              */
46 /*                                                                        */
47 /*  INPUT                                                                 */
48 /*                                                                        */
49 /*    ip_ptr                                IP instance pointer           */
50 /*    group_address                         Multicast group to join       */
51 /*                                                                        */
52 /*  OUTPUT                                                                */
53 /*                                                                        */
54 /*    NX_SUCCESS                            Successful completion status  */
55 /*    NX_ENTRY_NOT_FOUND                    Group address not found in the*/
56 /*                                                IGMP join list          */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*    _nx_igmp_multicast_interface_leave_internal                         */
61 /*                                                                        */
62 /*  CALLED BY                                                             */
63 /*                                                                        */
64 /*    Application Code                                                    */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
71 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
72 /*                                            resulting in version 6.1    */
73 /*                                                                        */
74 /**************************************************************************/
_nx_igmp_multicast_leave(NX_IP * ip_ptr,ULONG group_address)75 UINT  _nx_igmp_multicast_leave(NX_IP *ip_ptr, ULONG group_address)
76 {
77 
78 #ifndef NX_DISABLE_IPV4
79     return(_nx_igmp_multicast_interface_leave_internal(ip_ptr, group_address, 0));
80 #else /* NX_DISABLE_IPV4  */
81     NX_PARAMETER_NOT_USED(ip_ptr);
82     NX_PARAMETER_NOT_USED(group_address);
83 
84     return(NX_NOT_SUPPORTED);
85 #endif /* !NX_DISABLE_IPV4  */
86 }
87 
88