pub struct Header<'a> { /* private fields */ }
Expand description
BER/DER object header (identifier and length)
Implementations
sourceimpl<'a> Header<'a>
impl<'a> Header<'a>
sourcepub const fn new(
class: Class,
constructed: bool,
tag: Tag,
length: Length
) -> Self
pub const fn new(
class: Class,
constructed: bool,
tag: Tag,
length: Length
) -> Self
Build a new BER/DER header from the provided values
sourcepub const fn new_simple(tag: Tag) -> Self
pub const fn new_simple(tag: Tag) -> Self
Build a new BER/DER header from the provided tag, with default values for other fields
sourcepub fn with_class(self, class: Class) -> Self
pub fn with_class(self, class: Class) -> Self
Set the class of this Header
sourcepub fn with_constructed(self, constructed: bool) -> Self
pub fn with_constructed(self, constructed: bool) -> Self
Set the constructed flags of this Header
sourcepub fn with_length(self, length: Length) -> Self
pub fn with_length(self, length: Length) -> Self
Set the length of this Header
sourcepub fn with_raw_tag(self, raw_tag: Option<Cow<'a, [u8]>>) -> Self
pub fn with_raw_tag(self, raw_tag: Option<Cow<'a, [u8]>>) -> Self
Update header to add reference to raw tag
sourcepub const fn constructed(&self) -> bool
pub const fn constructed(&self) -> bool
Return true if this header has the ‘constructed’ flag.
sourcepub fn raw_tag(&self) -> Option<&[u8]>
pub fn raw_tag(&self) -> Option<&[u8]>
Return the raw tag encoding, if it was stored in this object
sourcepub const fn is_primitive(&self) -> bool
pub const fn is_primitive(&self) -> bool
Test if object is primitive
sourcepub const fn is_constructed(&self) -> bool
pub const fn is_constructed(&self) -> bool
Test if object is constructed
sourcepub const fn assert_class(&self, class: Class) -> Result<()>
pub const fn assert_class(&self, class: Class) -> Result<()>
Return error if class is not the expected class
sourcepub const fn assert_tag(&self, tag: Tag) -> Result<()>
pub const fn assert_tag(&self, tag: Tag) -> Result<()>
Return error if tag is not the expected tag
sourcepub const fn assert_primitive(&self) -> Result<()>
pub const fn assert_primitive(&self) -> Result<()>
Return error if object is not primitive
sourcepub const fn assert_constructed(&self) -> Result<()>
pub const fn assert_constructed(&self) -> Result<()>
Return error if object is primitive
sourcepub const fn is_universal(&self) -> bool
pub const fn is_universal(&self) -> bool
Test if object class is Universal
sourcepub const fn is_application(&self) -> bool
pub const fn is_application(&self) -> bool
Test if object class is Application
sourcepub const fn is_contextspecific(&self) -> bool
pub const fn is_contextspecific(&self) -> bool
Test if object class is Context-specific
sourcepub const fn is_private(&self) -> bool
pub const fn is_private(&self) -> bool
Test if object class is Private
sourcepub const fn assert_definite(&self) -> Result<()>
pub const fn assert_definite(&self) -> Result<()>
Return error if object length is definite
sourcepub fn parse_ber_content<'i>(&self, i: &'i [u8]) -> ParseResult<'i, &'i [u8]>
pub fn parse_ber_content<'i>(&self, i: &'i [u8]) -> ParseResult<'i, &'i [u8]>
Get the content following a BER header
sourcepub fn parse_der_content<'i>(&self, i: &'i [u8]) -> ParseResult<'i, &'i [u8]>
pub fn parse_der_content<'i>(&self, i: &'i [u8]) -> ParseResult<'i, &'i [u8]>
Get the content following a DER header
Trait Implementations
sourceimpl<'a> FromBer<'a, Error> for Header<'a>
impl<'a> FromBer<'a, Error> for Header<'a>
sourcefn from_ber(bytes: &'a [u8]) -> ParseResult<'_, Self>
fn from_ber(bytes: &'a [u8]) -> ParseResult<'_, Self>
Attempt to parse input bytes into a BER object
sourceimpl<'a> FromDer<'a, Error> for Header<'a>
impl<'a> FromDer<'a, Error> for Header<'a>
sourcefn from_der(bytes: &'a [u8]) -> ParseResult<'_, Self>
fn from_der(bytes: &'a [u8]) -> ParseResult<'_, Self>
Attempt to parse input bytes into a DER object (enforcing constraints)
sourceimpl<'a> PartialEq<Header<'a>> for Header<'a>
impl<'a> PartialEq<Header<'a>> for Header<'a>
Compare two BER headers. len
fields are compared only if both objects have it set (same for raw_tag
)
sourceimpl ToDer for Header<'_>
impl ToDer for Header<'_>
sourcefn to_der_len(&self) -> Result<usize>
fn to_der_len(&self) -> Result<usize>
Get the length of the object, when encoded Read more
sourcefn write_der_header(&self, writer: &mut dyn Write) -> SerializeResult<usize>
fn write_der_header(&self, writer: &mut dyn Write) -> SerializeResult<usize>
Attempt to write the DER header to this writer.
sourcefn write_der_content(&self, _writer: &mut dyn Write) -> SerializeResult<usize>
fn write_der_content(&self, _writer: &mut dyn Write) -> SerializeResult<usize>
Attempt to write the DER content (all except header) to this writer.
sourcefn write_der_raw(&self, writer: &mut dyn Write) -> SerializeResult<usize>
fn write_der_raw(&self, writer: &mut dyn Write) -> SerializeResult<usize>
Similar to using to_der
, but uses provided values without changes.
This can generate an invalid encoding for a DER object. Read more
sourcefn to_der_vec(&self) -> SerializeResult<Vec<u8>>
fn to_der_vec(&self) -> SerializeResult<Vec<u8>>
Write the DER encoded representation to a newly allocated Vec<u8>
.
sourcefn to_der_vec_raw(&self) -> SerializeResult<Vec<u8>>
fn to_der_vec_raw(&self) -> SerializeResult<Vec<u8>>
Similar to using to_vec
, but uses provided values without changes.
This can generate an invalid encoding for a DER object. Read more
impl Eq for Header<'_>
Auto Trait Implementations
impl<'a> RefUnwindSafe for Header<'a>
impl<'a> Send for Header<'a>
impl<'a> Sync for Header<'a>
impl<'a> Unpin for Header<'a>
impl<'a> UnwindSafe for Header<'a>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more