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EbpfHeader

Struct EbpfHeader 

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#[repr(C)]
pub struct EbpfHeader { pub ebpf_magic: u32, pub header_version: u16, pub program_type: u8, pub attach_type: u8, pub program_flags: u32, pub insn_count: u16, pub max_dimension: u16, pub program_size: u64, pub map_count: u32, pub btf_size: u32, pub program_hash: [u8; 32], }
Expand description

64-byte header for EBPF_SEG payloads.

Follows the standard 64-byte SegmentHeader. All multi-byte fields are little-endian on the wire.

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§ebpf_magic: u32

Magic: EBPF_MAGIC (0x52564250, “RVBP”).

§header_version: u16

EbpfHeader format version (currently 1).

§program_type: u8

eBPF program type (see EbpfProgramType).

§attach_type: u8

eBPF attach point (see EbpfAttachType).

§program_flags: u32

Bitfield flags for the eBPF program.

§insn_count: u16

Number of BPF instructions (max 65535).

§max_dimension: u16

Maximum vector dimension this program handles.

§program_size: u64

ELF object size (bytes).

§map_count: u32

Number of BPF maps defined.

§btf_size: u32

BTF (BPF Type Format) section size.

§program_hash: [u8; 32]

SHAKE-256-256 of the ELF object.

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impl EbpfHeader

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pub fn to_bytes(&self) -> [u8; 64]

Serialize the header to a 64-byte little-endian array.

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pub fn from_bytes(data: &[u8; 64]) -> Result<Self, RvfError>

Deserialize an EbpfHeader from a 64-byte slice.

Trait Implementations§

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impl Clone for EbpfHeader

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fn clone(&self) -> EbpfHeader

Returns a duplicate 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 EbpfHeader

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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 Copy for EbpfHeader

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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, 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.