crypto/cryptd.c

File Facts

System

Linux kernel

Corpus path

crypto/cryptd.c

Extension

.c

Size

26929 bytes

Lines

1030

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.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• crypto/internal/hash.h
• crypto/internal/aead.h
• crypto/internal/skcipher.h
• crypto/cryptd.h
• linux/refcount.h
• linux/err.h
• linux/init.h
• linux/kernel.h
• linux/list.h
• linux/module.h
• linux/scatterlist.h
• linux/sched.h
• linux/slab.h
• linux/workqueue.h

Detected Declarations

• struct cryptd_cpu_queue
• struct cryptd_queue
• struct cryptd_instance_ctx
• struct skcipherd_instance_ctx
• struct hashd_instance_ctx
• struct aead_instance_ctx
• struct cryptd_skcipher_ctx
• struct cryptd_skcipher_request_ctx
• struct cryptd_hash_ctx
• struct cryptd_hash_request_ctx
• struct cryptd_aead_ctx
• struct cryptd_aead_request_ctx
• function cryptd_init_queue
• function cryptd_fini_queue
• function for_each_possible_cpu
• function cryptd_enqueue_request
• function cryptd_queue_worker
• function cryptd_type_and_mask
• function cryptd_init_instance
• function cryptd_skcipher_setkey
• function cryptd_skcipher_complete
• function cryptd_skcipher_encrypt
• function cryptd_skcipher_decrypt
• function cryptd_skcipher_enqueue
• function cryptd_skcipher_encrypt_enqueue
• function cryptd_skcipher_decrypt_enqueue
• function cryptd_skcipher_init_tfm
• function cryptd_skcipher_exit_tfm
• function cryptd_skcipher_free
• function cryptd_create_skcipher
• function cryptd_hash_init_tfm
• function cryptd_hash_exit_tfm
• function cryptd_hash_setkey
• function cryptd_hash_enqueue
• function cryptd_hash_complete
• function cryptd_hash_init
• function cryptd_hash_init_enqueue
• function cryptd_hash_update
• function cryptd_hash_update_enqueue
• function cryptd_hash_final
• function cryptd_hash_final_enqueue
• function cryptd_hash_finup
• function cryptd_hash_finup_enqueue
• function cryptd_hash_digest
• function cryptd_hash_digest_enqueue
• function cryptd_hash_export
• function cryptd_hash_import
• function cryptd_hash_free

Annotated Snippet

module_init(cryptd_init);
module_exit(cryptd_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Software async crypto daemon");
MODULE_ALIAS_CRYPTO("cryptd");

Annotation

• Immediate include surface: `crypto/internal/hash.h`, `crypto/internal/aead.h`, `crypto/internal/skcipher.h`, `crypto/cryptd.h`, `linux/refcount.h`, `linux/err.h`, `linux/init.h`, `linux/kernel.h`.
• Detected declarations: `struct cryptd_cpu_queue`, `struct cryptd_queue`, `struct cryptd_instance_ctx`, `struct skcipherd_instance_ctx`, `struct hashd_instance_ctx`, `struct aead_instance_ctx`, `struct cryptd_skcipher_ctx`, `struct cryptd_skcipher_request_ctx`, `struct cryptd_hash_ctx`, `struct cryptd_hash_request_ctx`.
• 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.