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 for IPv6 (ICMPv6)                 */
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_icmp.h"
29 #include "nx_icmpv6.h"
30 
31 
32 /**************************************************************************/
33 /*                                                                        */
34 /*  FUNCTION                                               RELEASE        */
35 /*                                                                        */
36 /*    _nxd_icmp_source_ping                               PORTABLE C      */
37 /*                                                           6.1          */
38 /*  AUTHOR                                                                */
39 /*                                                                        */
40 /*    Yuxin Zhou, Microsoft Corporation                                   */
41 /*                                                                        */
42 /*  DESCRIPTION                                                           */
43 /*                                                                        */
44 /*    Depending on the destination IP address, this function performs     */
45 /*    ICMP ping or ICMPv6 ping. using specified source address.           */
46 /*    For ICMPv6 ping, the sender address is set to the IPv6 indexed      */
47 /*    by address_index.  The parameter address_index is ignored for       */
48 /*    IPv4 ping operations.                                               */
49 /*                                                                        */
50 /*  INPUT                                                                 */
51 /*                                                                        */
52 /*    ip_ptr                                Pointer to IP instance        */
53 /*    ip_address                            IP address to ping            */
54 /*    address_index                         Index to the IPv6 address     */
55 /*    data_ptr                              User Data pointer             */
56 /*    data_size                             Size of User Data             */
57 /*    response_ptr                          Pointer to Response Packet    */
58 /*    wait_option                           Suspension option             */
59 /*                                                                        */
60 /*  OUTPUT                                                                */
61 /*                                                                        */
62 /*    NX_SUCCESS                            Successful completion         */
63 /*    NX_NOT_SUPPORTED                      IPv6 or ICMP not enabled      */
64 /*    status                                Actual completion status      */
65 /*                                                                        */
66 /*  CALLS                                                                 */
67 /*                                                                        */
68 /*    _nx_ip_route_find                     Find suitable interface       */
69 /*    _nx_icmp_interface_ping               IPv4 ICMP ping routine.       */
70 /*    _nx_icmp_interface_ping6              IPv6 ICMP ping routine.       */
71 /*                                                                        */
72 /*  CALLED BY                                                             */
73 /*                                                                        */
74 /*    Application Code                                                    */
75 /*                                                                        */
76 /*  RELEASE HISTORY                                                       */
77 /*                                                                        */
78 /*    DATE              NAME                      DESCRIPTION             */
79 /*                                                                        */
80 /*  05-19-2020     Yuxin Zhou               Initial Version 6.0           */
81 /*  09-30-2020     Yuxin Zhou               Modified comment(s),          */
82 /*                                            resulting in version 6.1    */
83 /*                                                                        */
84 /**************************************************************************/
_nxd_icmp_source_ping(NX_IP * ip_ptr,NXD_ADDRESS * ip_address,UINT address_index,CHAR * data_ptr,ULONG data_size,NX_PACKET ** response_ptr,ULONG wait_option)85 UINT  _nxd_icmp_source_ping(NX_IP *ip_ptr, NXD_ADDRESS *ip_address, UINT address_index,
86                             CHAR *data_ptr, ULONG data_size,
87                             NX_PACKET **response_ptr, ULONG wait_option)
88 {
89 
90 UINT          status = NX_NOT_SUPPORTED;
91 #ifndef NX_DISABLE_IPV4
92 ULONG         next_hop_address;
93 NX_INTERFACE *interface_ptr;
94 #endif /* !NX_DISABLE_IPV4  */
95 
96 #ifndef NX_DISABLE_IPV4
97     if (ip_address -> nxd_ip_version == NX_IP_VERSION_V4)
98     {
99 
100         /* Set the outgoing interface. */
101         interface_ptr = &ip_ptr -> nx_ip_interface[address_index];
102 
103         /* Find the next hop address. . */
104         _nx_ip_route_find(ip_ptr, ip_address -> nxd_ip_address.v4, &interface_ptr, &next_hop_address);
105 
106         /*lint -e{644} suppress variable might not be initialized, since "next_hop_address" was initialized in _nx_ip_route_find. */
107         status = _nx_icmp_interface_ping(ip_ptr, ip_address -> nxd_ip_address.v4, interface_ptr, next_hop_address,
108                                          data_ptr, data_size, response_ptr, wait_option);
109     }
110 #endif /* !NX_DISABLE_IPV4  */
111 
112 #ifdef FEATURE_NX_IPV6
113     if (ip_address -> nxd_ip_version == NX_IP_VERSION_V6)
114     {
115 
116         status = _nx_icmp_interface_ping6(ip_ptr, ip_address, data_ptr, data_size,
117                                           &ip_ptr -> nx_ipv6_address[address_index], response_ptr, wait_option);
118     }
119 #endif /* FEATURE_NX_IPV6 */
120 
121     return(status);
122 }
123 
124