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cifs NTLMv2/NTLMSSP Change variable name mac_key to session key to reflect the key it holds

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Change name of variable mac_key to session key.
The reason mac_key was changed to session key is, this structure does not
hold message authentication code, it holds the session key (for ntlmv2,
ntlmv1 etc.).  mac is generated as a signature in cifs_calc* functions.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Shirish Pargaonkar
2010-09-18 22:01:58 -05:00
committato da Steve French
parent aa91c7e4ab
commit 5f98ca9afb
5 ha cambiato i file con 23 aggiunte e 23 eliminazioni
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22
fs/cifs/cifsencrypt.c
Vedi File

@@ -42,7 +42,7 @@ extern void SMBencrypt(unsigned char *passwd, const unsigned char *c8,
unsigned char *p24);
static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
const struct mac_key *key, char *signature)
const struct session_key *key, char *signature)
{
struct MD5Context context;
@@ -78,7 +78,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
server->sequence_number++;
spin_unlock(&GlobalMid_Lock);
rc = cifs_calculate_signature(cifs_pdu, &server->mac_signing_key,
rc = cifs_calculate_signature(cifs_pdu, &server->session_key,
smb_signature);
if (rc)
memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
@@ -89,7 +89,7 @@ int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,
}
static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
const struct mac_key *key, char *signature)
const struct session_key *key, char *signature)
{
struct MD5Context context;
int i;
@@ -145,7 +145,7 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
server->sequence_number++;
spin_unlock(&GlobalMid_Lock);
rc = cifs_calc_signature2(iov, n_vec, &server->mac_signing_key,
rc = cifs_calc_signature2(iov, n_vec, &server->session_key,
smb_signature);
if (rc)
memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
@@ -156,14 +156,14 @@ int cifs_sign_smb2(struct kvec *iov, int n_vec, struct TCP_Server_Info *server,
}
int cifs_verify_signature(struct smb_hdr *cifs_pdu,
const struct mac_key *mac_key,
const struct session_key *session_key,
__u32 expected_sequence_number)
{
unsigned int rc;
char server_response_sig[8];
char what_we_think_sig_should_be[20];
if ((cifs_pdu == NULL) || (mac_key == NULL))
if (cifs_pdu == NULL || session_key == NULL)
return -EINVAL;
if (cifs_pdu->Command == SMB_COM_NEGOTIATE)
@@ -192,7 +192,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
cpu_to_le32(expected_sequence_number);
cifs_pdu->Signature.Sequence.Reserved = 0;
rc = cifs_calculate_signature(cifs_pdu, mac_key,
rc = cifs_calculate_signature(cifs_pdu, session_key,
what_we_think_sig_should_be);
if (rc)
@@ -209,7 +209,7 @@ int cifs_verify_signature(struct smb_hdr *cifs_pdu,
}
/* We fill in key by putting in 40 byte array which was allocated by caller */
int cifs_calculate_mac_key(struct mac_key *key, const char *rn,
int cifs_calculate_session_key(struct session_key *key, const char *rn,
const char *password)
{
char temp_key[16];
@@ -347,11 +347,11 @@ void setup_ntlmv2_rsp(struct cifsSesInfo *ses, char *resp_buf,
/* now calculate the MAC key for NTLMv2 */
hmac_md5_init_limK_to_64(ses->server->ntlmv2_hash, 16, &context);
hmac_md5_update(resp_buf, 16, &context);
hmac_md5_final(ses->server->mac_signing_key.data.ntlmv2.key, &context);
hmac_md5_final(ses->server->session_key.data.ntlmv2.key, &context);
memcpy(&ses->server->mac_signing_key.data.ntlmv2.resp, resp_buf,
memcpy(&ses->server->session_key.data.ntlmv2.resp, resp_buf,
sizeof(struct ntlmv2_resp));
ses->server->mac_signing_key.len = 16 + sizeof(struct ntlmv2_resp);
ses->server->session_key.len = 16 + sizeof(struct ntlmv2_resp);
}
void CalcNTLMv2_response(const struct cifsSesInfo *ses,