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 /**   User Datagram Protocol (UDP)                                        */
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_udp.h"
30 
31 
32 /* Bring in externs for caller checking code.  */
33 
34 NX_CALLER_CHECKING_EXTERNS
35 
36 /**************************************************************************/
37 /*                                                                        */
38 /*  FUNCTION                                               RELEASE        */
39 /*                                                                        */
40 /*    _nxe_udp_socket_checksum_disable                    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 socket checksum disable      */
49 /*    function call.                                                      */
50 /*                                                                        */
51 /*  INPUT                                                                 */
52 /*                                                                        */
53 /*    socket_ptr                            Pointer to UDP socket         */
54 /*                                                                        */
55 /*  OUTPUT                                                                */
56 /*                                                                        */
57 /*    status                                Completion status             */
58 /*                                                                        */
59 /*  CALLS                                                                 */
60 /*                                                                        */
61 /*    _nx_udp_socket_checksum_disable       Actual socket checksum        */
62 /*                                            disable function            */
63 /*    None                                                                */
64 /*                                                                        */
65 /*  CALLED BY                                                             */
66 /*                                                                        */
67 /*    Application Code                                                    */
68 /*                                                                        */
69 /*  RELEASE HISTORY                                                       */
70 /*                                                                        */
71 /*    DATE              NAME                      DESCRIPTION             */
72 /*                                                                        */
73 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
74 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
75 /*                                            resulting in version 6.1    */
76 /*                                                                        */
77 /**************************************************************************/
_nxe_udp_socket_checksum_disable(NX_UDP_SOCKET * socket_ptr)78 UINT  _nxe_udp_socket_checksum_disable(NX_UDP_SOCKET *socket_ptr)
79 {
80 
81 UINT status;
82 
83 
84     /* Check for invalid input pointers.  */
85     if ((socket_ptr == NX_NULL) || (socket_ptr -> nx_udp_socket_id != NX_UDP_ID))
86     {
87         return(NX_PTR_ERROR);
88     }
89 
90     /* Check to see if UDP is enabled.  */
91     if (!(socket_ptr -> nx_udp_socket_ip_ptr) -> nx_ip_udp_packet_receive)
92     {
93         return(NX_NOT_ENABLED);
94     }
95 
96     /* Check for appropriate caller.  */
97     NX_NOT_ISR_CALLER_CHECKING
98 
99     /* Call actual UDP socket checksum disable function.  */
100     status =  _nx_udp_socket_checksum_disable(socket_ptr);
101 
102     /* Return completion status.  */
103     return(status);
104 }
105 
106