crypto/bpf_crypto_skcipher.c

File Facts

System

Linux kernel

Corpus path

crypto/bpf_crypto_skcipher.c

Extension

.c

Size

2253 bytes

Lines

84

Domain

Kernel Services

Bucket

crypto

Inferred role

Kernel Services: exported/initcall integration point

Status

integration implementation candidate

Why This File Exists

Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.

• Shared kernel service surface used by multiple subsystems, including helpers, cryptography, virtualization support, and async I/O infrastructure.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h
• linux/module.h
• linux/bpf_crypto.h
• crypto/skcipher.h

Detected Declarations

• function bpf_crypto_lskcipher_free_tfm
• function bpf_crypto_lskcipher_has_algo
• function bpf_crypto_lskcipher_setkey
• function bpf_crypto_lskcipher_get_flags
• function bpf_crypto_lskcipher_ivsize
• function bpf_crypto_lskcipher_statesize
• function bpf_crypto_lskcipher_encrypt
• function bpf_crypto_lskcipher_decrypt
• function bpf_crypto_skcipher_init
• function bpf_crypto_skcipher_exit
• module init bpf_crypto_skcipher_init

Annotated Snippet

module_init(bpf_crypto_skcipher_init);
module_exit(bpf_crypto_skcipher_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Symmetric key cipher support for BPF");

Annotation

• Immediate include surface: `linux/types.h`, `linux/module.h`, `linux/bpf_crypto.h`, `crypto/skcipher.h`.
• Detected declarations: `function bpf_crypto_lskcipher_free_tfm`, `function bpf_crypto_lskcipher_has_algo`, `function bpf_crypto_lskcipher_setkey`, `function bpf_crypto_lskcipher_get_flags`, `function bpf_crypto_lskcipher_ivsize`, `function bpf_crypto_lskcipher_statesize`, `function bpf_crypto_lskcipher_encrypt`, `function bpf_crypto_lskcipher_decrypt`, `function bpf_crypto_skcipher_init`, `function bpf_crypto_skcipher_exit`.
• Atlas domain: Kernel Services / crypto.
• Implementation status: integration implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.