Struct Config

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pub struct Config {
    pub max_len_array: usize,
    pub max_len_bytes: usize,
    pub max_len_text: usize,
    pub max_size_map: usize,
    pub max_nesting: usize,
    pub skip_tags: bool,
    pub check_tags: bool,
}
Expand description

Config contains various settings which limit resource consumption or enable certain validation options. Please note that the various maximum length/size values apply to an individual element only.

This is mainly to prevent attackers from providing CBOR values whose length is larger than the available memory. In combination the memory consumption can still become large and it is best to limit the incoming bytes to a specific upper bound, e.g. by using std::io::Take.

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§max_len_array: usize

Maximum number of array elements

§max_len_bytes: usize

Maximum length of a byte string

§max_len_text: usize

Maximum length of a string

§max_size_map: usize

Maximum number of object fields

§max_nesting: usize

Maximum recursion steps when decoder Values

§skip_tags: bool

Ignore Tags when decoding Values

§check_tags: bool

Validate Value type matches Tag.

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impl Config

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pub fn default() -> Config

Create default configuration with

  • max_len_array = 1000
  • max_len_bytes = 5 MB
  • max_len_text = 5 MB
  • max_size_map = 1000
  • max_nesting = 16
  • skip_tags = false
  • check_tags = true

Trait Implementations§

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impl Clone for Config

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fn clone(&self) -> Config

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Config

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl PartialEq for Config

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fn eq(&self, other: &Config) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Eq for Config

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impl StructuralPartialEq for Config

Auto Trait Implementations§

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impl Freeze for Config

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impl RefUnwindSafe for Config

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impl Send for Config

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impl Sync for Config

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impl Unpin for Config

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impl UnwindSafe for Config

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.