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
// Copyright (C) 2022 The uecho-rs Authors All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
use crate::node_profile::*;
use crate::object::ObjectCode;
use crate::protocol::ESV;
use crate::protocol::Message;
use crate::protocol::Property;
use crate::util::Bytes;
pub struct SearchMessage {}
impl SearchMessage {
pub fn from_object_code(code: ObjectCode) -> Message {
let mut msg = Message::new();
msg.set_esv(ESV::ReadRequest);
msg.set_seoj(NODE_PROFILE_OBJECT_CODE);
msg.set_deoj(code);
let mut prop = Property::new();
prop.set_code(NODE_PROFILE_CLASS_SELF_NODE_INSTANCE_LIST_S);
msg.add_property(prop);
msg
}
pub fn new() -> Message {
SearchMessage::from_object_code(NODE_PROFILE_OBJECT_CODE)
}
}
pub struct ResponseErrorMessage {}
impl ResponseErrorMessage {
pub fn from(req_msg: &Message) -> Message {
let mut msg = Message::new();
match req_msg.esv() {
// 4.2.3.1 Property value write service (no response required) [0x60, 0x50]
ESV::WriteRequest => {
msg.set_esv(ESV::WriteRequestError);
}
// 4.2.3.2 Property value write service (response required) [0x61,0x71,0x51]
ESV::WriteRequestResponseRequired => {
msg.set_esv(ESV::WriteRequestResponseRequiredError);
}
// 4.2.3.3 Property value read service [0x62,0x72,0x52]
ESV::ReadRequest => {
msg.set_esv(ESV::ReadRequestError);
}
// 4.2.3.4 Property value write & read service [0x6E,0x7E,0x5E]
ESV::WriteReadRequest => {
msg.set_esv(ESV::WriteReadRequestError);
}
// 4.2.3.5 Property value notification service [0x63,0x73,0x53]
ESV::NotificationRequest => {
msg.set_esv(ESV::NotificationRequestError);
}
// 4.2.3.6 Property value notification service (response required) [0x74, 0x7A]
ESV::NotificationResponseRequired => {
msg.set_esv(ESV::NotificationRequestError);
}
_ => {
msg.set_esv(ESV::Unknown);
}
}
msg.set_tid(req_msg.tid());
msg.set_seoj(req_msg.deoj());
msg.set_deoj(req_msg.seoj());
match msg.esv() {
// 4.2.3.4 Property value write & read service [0x6E,0x7E,0x5E]
ESV::WriteReadRequestError => {
for req_prop in req_msg.properties_set().iter() {
msg.add_property(req_prop.clone());
}
for req_prop in req_msg.properties_set().iter() {
msg.add_property(req_prop.clone());
}
}
_ => {
for req_prop in req_msg.properties().iter() {
msg.add_property(req_prop.clone());
}
}
}
msg
}
}
pub struct ResponseMessage {}
impl ResponseMessage {
pub fn from(req_msg: &Message) -> Message {
let mut msg = Message::new();
msg.set_tid(req_msg.tid());
match req_msg.esv() {
// 4.2.3.2 Property value write service (response required) [0x61,0x71,0x51]
ESV::WriteRequestResponseRequired => {
msg.set_esv(ESV::WriteResponse);
}
// 4.2.3.3 Property value read service [0x62,0x72,0x52]
ESV::ReadRequest => {
msg.set_esv(ESV::ReadResponse);
}
// 4.2.3.4 Property value write & read service [0x6E,0x7E,0x5E]
ESV::WriteReadRequest => {
msg.set_esv(ESV::WriteReadResponse);
}
// 4.2.3.5 Property value notification service [0x63,0x73,0x53]
ESV::NotificationRequest => {
msg.set_esv(ESV::Notification);
}
// 4.2.3.6 Property value notification service (response required) [0x74, 0x7A]
ESV::NotificationResponseRequired => {
msg.set_esv(ESV::NotificationResponse);
}
_ => {
msg.set_esv(ESV::Unknown);
}
}
msg.set_seoj(req_msg.deoj());
msg.set_deoj(req_msg.seoj());
msg
}
}
pub struct NodeProfileMessage<'a> {
obj_codes: Vec<ObjectCode>,
msg: &'a Message,
}
impl NodeProfileMessage<'_> {
pub fn from_message<'a>(msg: &'a Message) -> NodeProfileMessage<'a> {
NodeProfileMessage {
msg: msg,
obj_codes: Vec::new(),
}
}
pub fn object_codes(&self) -> &Vec<ObjectCode> {
return &self.obj_codes;
}
pub fn parse(&mut self) -> bool {
let opc = self.msg.opc();
for n in 0..opc {
let prop = self.msg.property(n);
if prop.code() != NODE_PROFILE_CLASS_SELF_NODE_INSTANCE_LIST_S {
continue;
}
let prop_data = prop.data();
let prop_data_len = prop_data.len();
if prop_data_len < 1 {
continue;
}
let num_objs = prop_data[0] as usize;
if prop_data_len < ((num_objs * 3) + 1) {
continue;
}
for idx in (1..prop_data_len).step_by(3) {
if (prop_data.len() - idx) < 3 {
continue;
}
let obj_code_bytes = &prop_data[idx..(idx + 3)];
let obj_code = Bytes::to_u32(obj_code_bytes) as ObjectCode;
self.obj_codes.push(obj_code);
}
}
true
}
}
impl Message {
pub fn is_node_profile_message(&self) -> bool {
let esv = self.esv();
if esv != ESV::Notification && esv != ESV::ReadResponse {
return false;
}
let dst_obj = self.deoj();
if dst_obj != NODE_PROFILE_OBJECT_CODE && dst_obj != NODE_PROFILE_OBJECT_READ_ONLY {
return false;
}
true
}
}