lib/crypto/gf128hash.c

File Facts

System

Linux kernel

Corpus path

lib/crypto/gf128hash.c

Extension

.c

Size

13780 bytes

Lines

435

Domain

Kernel Services

Bucket

lib

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/gf128hash.h
• linux/export.h
• linux/module.h
• linux/string.h
• linux/unaligned.h
• gf128hash.h

Detected Declarations

• function GF
• function clmul32
• function clmul64
• function polyval_mul_generic
• function ghash_blocks_generic
• function polyval_blocks_generic
• function ghash_key_to_polyval
• function polyval_acc_to_ghash
• function ghash_acc_to_polyval
• function ghash_preparekey
• function ghash_mul
• function ghash_blocks
• function ghash_update
• function ghash_final
• function polyval_preparekey
• function polyval_mul_generic
• function polyval_blocks
• function polyval_update
• function polyval_final
• function gf128hash_mod_init
• function gf128hash_mod_exit
• module init gf128hash_mod_init
• export ghash_preparekey
• export ghash_update
• export ghash_final
• export polyval_preparekey
• export polyval_update
• export polyval_final

Annotated Snippet

subsys_initcall(gf128hash_mod_init);

static void __exit gf128hash_mod_exit(void)
{
}
module_exit(gf128hash_mod_exit);
#endif

MODULE_DESCRIPTION("GF(2^128) polynomial hashing: GHASH and POLYVAL");
MODULE_LICENSE("GPL");

Annotation

• Immediate include surface: `crypto/gf128hash.h`, `linux/export.h`, `linux/module.h`, `linux/string.h`, `linux/unaligned.h`, `gf128hash.h`.
• Detected declarations: `function GF`, `function clmul32`, `function clmul64`, `function polyval_mul_generic`, `function ghash_blocks_generic`, `function polyval_blocks_generic`, `function ghash_key_to_polyval`, `function polyval_acc_to_ghash`, `function ghash_acc_to_polyval`, `function ghash_preparekey`.
• Atlas domain: Kernel Services / lib.
• 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.