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Implement FromTLV for Extensions manually

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This commit is contained in:
Shane Snover 2023-09-17 16:42:37 -06:00
parent 8b73cbd71a
commit 5e81647291
1 changed files with 51 additions and 1 deletions
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52
rs-matter/src/cert/mod.rs
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@ -215,7 +215,7 @@ fn encode_extension_end(w: &mut dyn CertConsumer) -> Result<(), Error> {
w.end_seq()
}
#[derive(FromTLV, ToTLV, Default, Debug)]
#[derive(ToTLV, Default, Debug)]
#[tlvargs(lifetime = "'a", start = 1, datatype = "list")]
struct Extensions<'a> {
basic_const: Option<BasicConstraints>,
@ -272,6 +272,56 @@ impl<'a> Extensions<'a> {
}
}
impl<'a> crate::tlv::FromTLV<'a> for Extensions<'a> {
fn from_tlv(t: &TLVElement<'a>) -> Result<Self, Error> {
let tlv_iter = t
.confirm_list()?
.enter()
.ok_or_else(|| Error::new(ErrorCode::Invalid))?;
let mut extensions = Extensions::default();
for item in tlv_iter {
if item.check_ctx_tag(1u8) {
if extensions.basic_const.is_none() {
extensions.basic_const = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
} else if item.check_ctx_tag(2u8) {
if extensions.key_usage.is_none() {
extensions.key_usage = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
} else if item.check_ctx_tag(3u8) {
if extensions.ext_key_usage.is_none() {
extensions.ext_key_usage = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
} else if item.check_ctx_tag(4u8) {
if extensions.subj_key_id.is_none() {
extensions.subj_key_id = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
} else if item.check_ctx_tag(5u8) {
if extensions.auth_key_id.is_none() {
extensions.auth_key_id = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
} else if item.check_ctx_tag(6u8) {
if extensions.future_extensions.is_none() {
extensions.future_extensions = Option::from_tlv(&item)?;
} else {
return Err(Error::new(ErrorCode::InvalidData));
}
}
}
Ok(extensions)
}
}
#[derive(FromPrimitive, Copy, Clone)]
enum DnTags {
CommonName = 1,