net/mac80211/aes_gcm.h

Source file repositories/reference/linux-study-clean/net/mac80211/aes_gcm.h

File Facts

System
Linux kernel
Corpus path
net/mac80211/aes_gcm.h
Extension
.h
Size
1013 bytes
Lines
44
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: implementation source
Status
source implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef AES_GCM_H
#define AES_GCM_H

#include "aead_api.h"

#define GCM_AAD_LEN	32

static inline int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm,
					    u8 *j_0, u8 *aad,  u8 *data,
					    size_t data_len, u8 *mic)
{
	return aead_encrypt(tfm, j_0, aad + 2,
			    be16_to_cpup((__be16 *)aad),
			    data, data_len, mic);
}

static inline int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm,
					    u8 *j_0, u8 *aad, u8 *data,
					    size_t data_len, u8 *mic)
{
	return aead_decrypt(tfm, j_0, aad + 2,
			    be16_to_cpup((__be16 *)aad),
			    data, data_len, mic);
}

static inline struct crypto_aead *
ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len)
{
	return aead_key_setup_encrypt("gcm(aes)", key,
				      key_len, IEEE80211_GCMP_MIC_LEN);
}

static inline void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
{
	return aead_key_free(tfm);
}

#endif /* AES_GCM_H */

Annotation

Implementation Notes