crypto/crypto_null.c
Source file repositories/reference/linux-study-clean/crypto/crypto_null.c
File Facts
- System
- Linux kernel
- Corpus path
crypto/crypto_null.c- Extension
.c- Size
- 2805 bytes
- Lines
- 125
- 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
crypto/null.hcrypto/internal/hash.hcrypto/internal/skcipher.hcrypto/scatterwalk.hlinux/init.hlinux/module.hlinux/string.h
Detected Declarations
function Copyrightfunction null_updatefunction null_finalfunction null_digestfunction null_hash_setkeyfunction null_skcipher_setkeyfunction null_skcipher_cryptfunction crypto_null_mod_initfunction crypto_null_mod_finimodule init crypto_null_mod_init
Annotated Snippet
module_init(crypto_null_mod_init);
module_exit(crypto_null_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Null Cryptographic Algorithms");Annotation
- Immediate include surface: `crypto/null.h`, `crypto/internal/hash.h`, `crypto/internal/skcipher.h`, `crypto/scatterwalk.h`, `linux/init.h`, `linux/module.h`, `linux/string.h`.
- Detected declarations: `function Copyright`, `function null_update`, `function null_final`, `function null_digest`, `function null_hash_setkey`, `function null_skcipher_setkey`, `function null_skcipher_crypt`, `function crypto_null_mod_init`, `function crypto_null_mod_fini`, `module init crypto_null_mod_init`.
- 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.