1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
|
/***************************************************************************/
/* Copyright (c) 2024 Microsoft Corporation */
/* Copyright (c) 2026 Eclipse ThreadX contributors */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the MIT License which is available at */
/* https://opensource.org/licenses/MIT. */
/* */
/* SPDX-License-Identifier: MIT */
/***************************************************************************/
/* This NetX test concentrates on sending the ICMP error message.
* The destination of incoming packet is link-layer broadcast address. */
#include "tx_api.h"
#include "nx_api.h"
#include "nx_ip.h"
#include "nx_icmp.h"
#if defined (__PRODUCT_NETXDUO__) && !defined (NX_DISABLE_ICMPV4_ERROR_MESSAGE) && !defined(NX_DISABLE_IPV4)
#define DEMO_STACK_SIZE 2048
/* Define the ThreadX and NetX object control blocks... */
static TX_THREAD ntest_0;
static NX_PACKET_POOL pool_0;
static NX_IP ip_0;
static NX_IP ip_1;
/* Define the counters used in the test application... */
static ULONG error_counter;
static ULONG ip_0_icmp_counter;
static ULONG ip_1_icmp_counter;
static ULONG ip_1_icmp_error_message_counter;
/* Define thread prototypes. */
static void ntest_0_entry(ULONG thread_input);
extern void test_control_return(UINT status);
extern void _nx_ram_network_driver_256(struct NX_IP_DRIVER_STRUCT *driver_req);
extern UINT (*packet_process_callback)(NX_IP *ip_ptr, NX_PACKET *packet_ptr);
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr);
/* Define what the initial system looks like. */
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_icmp_send_error_message_test_1_application_define(void *first_unused_memory)
#endif
{
CHAR *pointer;
UINT status;
/* Setup the working pointer. */
pointer = (CHAR *) first_unused_memory;
/* Initialize the value. */
error_counter = 0;
ip_0_icmp_counter = 0;
ip_1_icmp_counter = 0;
ip_1_icmp_error_message_counter = 0;
/* Create the main thread. */
tx_thread_create(&ntest_0, "thread 0", ntest_0_entry, 0,
pointer, DEMO_STACK_SIZE,
4, 4, TX_NO_TIME_SLICE, TX_AUTO_START);
pointer = pointer + DEMO_STACK_SIZE;
/* Initialize the NetX system. */
nx_system_initialize();
/* Create a packet pool. */
status = nx_packet_pool_create(&pool_0, "NetX Main Packet Pool", 256, pointer, 2048);
pointer = pointer + 2048;
if (status)
error_counter++;
/* Create an IP instance. */
status = nx_ip_create(&ip_0, "NetX IP Instance 0", IP_ADDRESS(1, 2, 3, 4), 0xFFFFFF00UL, &pool_0, _nx_ram_network_driver_256,
pointer, 2048, 1);
pointer = pointer + 2048;
/* Create another IP instance. */
status += nx_ip_create(&ip_1, "NetX IP Instance 1", IP_ADDRESS(1, 2, 3, 5), 0xFFFFFF00UL, &pool_0, _nx_ram_network_driver_256,
pointer, 2048, 2);
pointer = pointer + 2048;
if (status)
error_counter++;
/* Enable ARP and supply ARP cache memory for IP Instance 0. */
status = nx_arp_enable(&ip_0, (void *) pointer, 1024);
pointer = pointer + 1024;
if (status)
error_counter++;
/* Enable ARP and supply ARP cache memory for IP Instance 1. */
status = nx_arp_enable(&ip_1, (void *) pointer, 1024);
pointer = pointer + 1024;
if (status)
error_counter++;
/* Enable ICMP processing for both IP instances. */
status = nx_icmp_enable(&ip_0);
status = nx_icmp_enable(&ip_1);
/* Check TCP enable status. */
if (status)
error_counter++;
}
/* Define the test threads. */
static void ntest_0_entry(ULONG thread_input)
{
UINT status;
NX_PACKET *my_packet;
/* Print out test information banner. */
printf("NetX Test: ICMP Send Error Message Test 1............................");
/* Check for earlier error. */
if (error_counter)
{
printf("ERROR!\n");
test_control_return(1);
}
packet_process_callback = my_packet_process;
/* Test illegal length of NX_IP_OPTION_INTERNET_TIMESTAMP option and destination address (1, 2, 3, 255) by ping. */
status = nx_icmp_ping(&ip_0, IP_ADDRESS(1, 2, 3, 5), "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 28, &my_packet, 1 * NX_IP_PERIODIC_RATE);
/* Check the status. */
if ((status != NX_NO_RESPONSE) || (my_packet))
{
printf("ERROR!\n");
test_control_return(1);
}
/* Check the value. */
if ((ip_0_icmp_counter != 1) && (ip_1_icmp_counter != 0))
{
printf("ERROR!\n");
test_control_return(1);
}
printf("SUCCESS!\n");
test_control_return(0);
}
static UINT my_packet_process(NX_IP *ip_ptr, NX_PACKET *packet_ptr)
{
NX_IPV4_HEADER *ip_header_ptr;
NX_ICMP_HEADER *icmp_header_ptr;
ULONG ip_header_length;
ULONG protocol;
ULONG checksum;
ULONG val;
ULONG offset = 0;
ULONG shift;
ULONG message_word;
/* Get the IP header pointer. */
ip_header_ptr = (NX_IPV4_HEADER*)(packet_ptr -> nx_packet_prepend_ptr);
/* Get IP header. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
protocol = (ip_header_ptr -> nx_ip_header_word_2 >> 16) & 0xFF;
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_2);
/* Only process ICMP message. */
if (protocol != NX_PROTOCOL_ICMP)
return (NX_TRUE);
/* Modify the ICMP packet from ip_0 instance. */
if(ip_ptr == &ip_0)
{
/* Update the icmp_counter. */
ip_0_icmp_counter++;
/* Get the IP header pointer. */
ip_header_ptr = (NX_IPV4_HEADER*)(packet_ptr -> nx_packet_prepend_ptr);
/* Calculate the IPv4 option length. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_0);
ip_header_length = ((ip_header_ptr -> nx_ip_header_word_0 & NX_IP_LENGTH_MASK) >> 24) * sizeof(ULONG);
/* Get ICMP header. */
icmp_header_ptr = (NX_ICMP_HEADER *)(packet_ptr -> nx_packet_prepend_ptr + ip_header_length);
/* Add the illegal length 7 for NX_IP_OPTION_INTERNET_TIMESTAMP option. */
/* Move the data to add the option. */
offset = 12;
shift = packet_ptr -> nx_packet_length - ip_header_length;
memmove(((UCHAR *)(icmp_header_ptr)) + offset, icmp_header_ptr, shift);
/* Clear memory. */
memset(&message_word, 0, sizeof(ULONG));
/* Add type, length, offset, overflw and flags. */
message_word = (ULONG)((NX_IP_OPTION_INTERNET_TIMESTAMP << 24) | (7 << 16) | (5 << 8) );
/* Adjust for endianness. */
NX_CHANGE_ULONG_ENDIAN(message_word);
/* Add type, length, offset, overflw and flags. */
memcpy(icmp_header_ptr, &message_word, sizeof(ULONG));
/* Clear the time stamp value. */
memset(((UCHAR *)(icmp_header_ptr)) + sizeof(ULONG), 0 , offset - sizeof(ULONG));
/* Modified the destination address to 1.2.3.255. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_destination_ip);
ip_header_ptr -> nx_ip_header_destination_ip = IP_ADDRESS(1, 2, 3, 255);
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_destination_ip);
/* Update the header IP length and total length. */
ip_header_length += offset;
packet_ptr -> nx_packet_append_ptr += offset;
packet_ptr -> nx_packet_length += offset;
/* Rebuild the first 32-bit word of the IP header. */
ip_header_ptr -> nx_ip_header_word_0 = (ULONG)((NX_IP_VERSION_V4 << 28) |
((ip_header_length/sizeof(ULONG)) << 24) |
NX_IP_NORMAL |
(0xFFFF & packet_ptr -> nx_packet_length));
/* Endian swapping logic. */
NX_CHANGE_ULONG_ENDIAN(ip_header_ptr -> nx_ip_header_word_0);
/* Clear the checksum . */
ip_header_ptr -> nx_ip_header_word_2 = ip_header_ptr -> nx_ip_header_word_2 & 0x0000FFFF;
/* Calculate the checksum. */
checksum = _nx_ip_checksum_compute(packet_ptr, NX_IP_VERSION_V4,
/* Length is the size of IP header, including options */
(UINT)(ip_header_length),
/* IPv4 header checksum does not use src/dest addresses */
NULL, NULL);
val = (ULONG)(~checksum);
val = val & NX_LOWER_16_MASK;
/* Convert to network byte order. */
NX_CHANGE_ULONG_ENDIAN(val);
/* Now store the checksum in the IP header. */
ip_header_ptr -> nx_ip_header_word_2 = ip_header_ptr -> nx_ip_header_word_2 | val;
}
/* Check the ICMP packet from ip_1 instance. */
else if(ip_ptr == &ip_1)
{
/* Update the icmp_counter. */
ip_1_icmp_counter++;
}
return NX_TRUE;
}
#else
extern void test_control_return(UINT status);
#ifdef CTEST
VOID test_application_define(void *first_unused_memory)
#else
void netx_icmp_send_error_message_test_1_application_define(void *first_unused_memory)
#endif
{
printf("NetX Test: ICMP Send Error Message Test 1............................N/A\n");
test_control_return(3);
}
#endif
|
