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espnow/pmf: Implement ESPNOW + PMF Co-existance

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H/W decryption of Mgmt frames was disabled for PMF and done through
S/W. If ESPNOW packets go through this path, it affects backward
compatibility since method of decrypting Mgmt packets is different in H/W.

To address PMF + ESPNOW Co-existance, CCMP decryption method is modified
for ESPNOW packets so that they can be decrypted correctly. Since Tx
of ESPNOW packets can still be done in H/W alongside PMF, no change
required in encryption method in S/W.

Co-Authored-By: Nachiket Kukade <nachiket.kukade@espressif.com>
Co-Authored-By: zhangyanjiao <zhangyanjiao@espressif.com>
Co-Authored-By: kapil.gupta <kapil.gupta@espressif.com>
This commit is contained in:
Nachiket Kukade
2020-09-02 10:45:08 +08:00
parent 587f97ab15
commit 3308ede898
6 changed files with 29 additions and 20 deletions
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4
components/wpa_supplicant/src/crypto/aes.h
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@@ -29,8 +29,8 @@ int omac1_aes_128(const u8 *key, const u8 *data, size_t data_len, u8 *mac);
int aes_ccm_ae(const u8 *key, size_t key_len, const u8 *nonce,
size_t M, const u8 *plain, size_t plain_len,
const u8 *aad, size_t aad_len, u8 *crypt, u8 *auth);
int aes_ccm_ad(const u8 *key, size_t key_len, const u8 *nonce,
int aes_ccm_ad(const u8 *key, size_t key_len, u8 *nonce,
size_t M, const u8 *crypt, size_t crypt_len,
const u8 *aad, size_t aad_len, const u8 *auth,
u8 *plain);
u8 *plain, bool skip_auth);
#endif /* AES_H */