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authorSteve French <stfrench@microsoft.com>2020-10-15 00:25:02 -0500
committerSteve French <stfrench@microsoft.com>2020-10-19 15:11:06 -0500
commitfd08f2dbf0c2e95f8503e2c79339fe5711f1aa1d (patch)
treec767bea2dc0e360252ae5c49215c5711cc360648 /fs/cifs
parent511ac89e591ab9affce17a8be4c45f6c2bb837f0 (diff)
smb3.1.1: rename nonces used for GCM and CCM encryption
Now that 256 bit encryption can be negotiated, update names of the nonces to match the updated official protocol documentation (e.g. AES_GCM_NONCE instead of AES_128GCM_NONCE) since they apply to both 128 bit and 256 bit encryption. Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2ops.c8
-rw-r--r--fs/cifs/smb2pdu.h4
2 files changed, 6 insertions, 6 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 76d82a60a550..dd1edabec328 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -3821,9 +3821,9 @@ fill_transform_hdr(struct smb2_transform_hdr *tr_hdr, unsigned int orig_len,
tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len);
tr_hdr->Flags = cpu_to_le16(0x01);
if (cipher_type == SMB2_ENCRYPTION_AES128_GCM)
- get_random_bytes(&tr_hdr->Nonce, SMB3_AES128GCM_NONCE);
+ get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE);
else
- get_random_bytes(&tr_hdr->Nonce, SMB3_AES128CCM_NONCE);
+ get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE);
memcpy(&tr_hdr->SessionId, &shdr->SessionId, 8);
}
@@ -3993,10 +3993,10 @@ crypt_message(struct TCP_Server_Info *server, int num_rqst,
}
if (server->cipher_type == SMB2_ENCRYPTION_AES128_GCM)
- memcpy(iv, (char *)tr_hdr->Nonce, SMB3_AES128GCM_NONCE);
+ memcpy(iv, (char *)tr_hdr->Nonce, SMB3_AES_GCM_NONCE);
else {
iv[0] = 3;
- memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES128CCM_NONCE);
+ memcpy(iv + 1, (char *)tr_hdr->Nonce, SMB3_AES_CCM_NONCE);
}
aead_request_set_crypt(req, sg, sg, crypt_len, iv);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 6f65f1cec8ad..05b010e5a061 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -128,8 +128,8 @@ struct smb2_sync_pdu {
__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;
-#define SMB3_AES128CCM_NONCE 11
-#define SMB3_AES128GCM_NONCE 12
+#define SMB3_AES_CCM_NONCE 11
+#define SMB3_AES_GCM_NONCE 12
/* Transform flags (for 3.0 dialect this flag indicates CCM */
#define TRANSFORM_FLAG_ENCRYPTED 0x0001