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
32 /**************************************************************************/
33 /* */
34 /* FUNCTION RELEASE */
35 /* */
36 /* _nx_ip_raw_packet_source_send PORTABLE C */
37 /* 6.1 */
38 /* AUTHOR */
39 /* */
40 /* Yuxin Zhou, Microsoft Corporation */
41 /* */
42 /* DESCRIPTION */
43 /* */
44 /* This function sends a raw IP packet through the specified IP */
45 /* source. */
46 /* */
47 /* INPUT */
48 /* */
49 /* ip_ptr Pointer to IP control block */
50 /* packet_ptr Pointer to packet to send */
51 /* destination_ip Destination IP address */
52 /* address_index Index to the IPv6 address */
53 /* type_of_service Type of service for packet */
54 /* */
55 /* OUTPUT */
56 /* */
57 /* status Completion status */
58 /* */
59 /* CALLS */
60 /* */
61 /* nx_ip_packet_send Core IP packet send service */
62 /* nx_ip_route_find Find a suitable outgoing */
63 /* interface. */
64 /* tx_mutex_get Get protection mutex */
65 /* tx_mutex_put Put protection mutex */
66 /* */
67 /* CALLED BY */
68 /* */
69 /* Application */
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 /**************************************************************************/
_nx_ip_raw_packet_source_send(NX_IP * ip_ptr,NX_PACKET * packet_ptr,ULONG destination_ip,UINT address_index,ULONG type_of_service)80 UINT _nx_ip_raw_packet_source_send(NX_IP *ip_ptr, NX_PACKET *packet_ptr,
81 ULONG destination_ip, UINT address_index, ULONG type_of_service)
82 {
83
84 #ifndef NX_DISABLE_IPV4
85 ULONG next_hop_address;
86
87 /* Add debug information. */
88 NX_PACKET_DEBUG(__FILE__, __LINE__, packet_ptr);
89
90 /* Store interface information into the packet structure. */
91 packet_ptr -> nx_packet_address.nx_packet_interface_ptr = &(ip_ptr -> nx_ip_interface[address_index]);
92
93 /* Get mutex protection. */
94 tx_mutex_get(&(ip_ptr -> nx_ip_protection), TX_WAIT_FOREVER);
95
96 /* Figure out a suitable outgoing interface. */
97 _nx_ip_route_find(ip_ptr, destination_ip, &packet_ptr -> nx_packet_address.nx_packet_interface_ptr, &next_hop_address);
98
99 /* If trace is enabled, insert this event into the trace buffer. */
100 NX_TRACE_IN_LINE_INSERT(NX_TRACE_IP_RAW_PACKET_SEND, ip_ptr, packet_ptr, destination_ip, type_of_service, NX_TRACE_IP_EVENTS, 0, 0);
101
102 /* Yes, raw packet sending and receiving is enabled send packet! */
103 /*lint -e{644} suppress variable might not be initialized, since "next_hop_address" was initialized in _nx_ip_route_find. */
104 _nx_ip_packet_send(ip_ptr, packet_ptr, destination_ip, type_of_service, NX_IP_TIME_TO_LIVE, NX_IP_RAW, NX_FRAGMENT_OKAY, next_hop_address);
105
106 /* Release mutex protection. */
107 tx_mutex_put(&(ip_ptr -> nx_ip_protection));
108
109 /* Return a successful status! */
110 return(NX_SUCCESS);
111 #else /* NX_DISABLE_IPV4 */
112 NX_PARAMETER_NOT_USED(ip_ptr);
113 NX_PARAMETER_NOT_USED(packet_ptr);
114 NX_PARAMETER_NOT_USED(destination_ip);
115 NX_PARAMETER_NOT_USED(address_index);
116 NX_PARAMETER_NOT_USED(type_of_service);
117
118 return(NX_NOT_SUPPORTED);
119 #endif /* !NX_DISABLE_IPV4 */
120 }
121
122
