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
|
use std::hash::{Hash, Hasher};
use std::cmp::Ordering;
use crate::packet::Tag;
use crate::packet;
use crate::Packet;
/// Holds an unknown packet.
///
/// This is used by the parser to hold packets that it doesn't know
/// how to process rather than abort.
///
/// This packet effectively holds a binary blob.
///
/// # A note on equality
///
/// Two `Unknown` packets are considered equal if their tags and their
/// bodies are equal.
#[derive(Debug)]
pub struct Unknown {
/// CTB packet header fields.
pub(crate) common: packet::Common,
/// Packet tag.
tag: Tag,
/// Error that caused parsing or processing to abort.
error: anyhow::Error,
/// The unknown data packet is a container packet, but cannot
/// store packets.
///
/// This is written when serialized, and set by the packet parser
/// if `buffer_unread_content` is used.
container: packet::Container,
}
assert_send_and_sync!(Unknown);
impl PartialEq for Unknown {
fn eq(&self, other: &Unknown) -> bool {
self.tag == other.tag
&& self.container == other.container
}
}
impl Eq for Unknown { }
impl Hash for Unknown {
fn hash<H: Hasher>(&self, state: &mut H) {
self.tag.hash(state);
self.container.hash(state);
}
}
impl Clone for Unknown {
fn clone(&self) -> Self {
Unknown {
common: self.common.clone(),
tag: self.tag,
error: anyhow::anyhow!("{}", self.error),
container: self.container.clone(),
}
}
}
impl Unknown {
/// Returns a new `Unknown` packet.
pub fn new(tag: Tag, error: anyhow::Error) -> Self {
Unknown {
common: Default::default(),
tag,
error,
container: packet::Container::default_unprocessed(),
}
}
/// Gets the unknown packet's tag.
pub fn tag(&self) -> Tag {
self.tag
}
/// Sets the unknown packet's tag.
pub fn set_tag(&mut self, tag: Tag) -> Tag {
::std::mem::replace(&mut self.tag, tag)
}
/// Gets the unknown packet's error.
///
/// This is the error that caused parsing or processing to abort.
pub fn error(&self) -> &anyhow::Error {
&self.error
}
/// Sets the unknown packet's error.
///
/// This is the error that caused parsing or processing to abort.
pub fn set_error(&mut self, error: anyhow::Error) -> anyhow::Error {
::std::mem::replace(&mut self.error, error)
}
/// Best effort Ord implementation.
///
/// The Cert canonicalization needs to order Unknown packets.
/// However, due to potential streaming, Unknown cannot implement
/// Eq. This is cheating a little, we simply ignore the streaming
/// case.
pub(crate) // For cert/mod.rs
fn best_effort_cmp(&self, other: &Unknown) -> Ordering {
self.tag.cmp(&other.tag).then_with(|| self.body().cmp(&other.body()))
}
}
impl_body_forwards!(Unknown);
impl From<Unknown> for Packet {
fn from(s: Unknown) -> Self {
Packet::Unknown(s)
}
}
|
