[PATCH] cifs: Fix multiuser packet signing to use the right sequence number and mac session key
Signed-off-by: Steve French (sfrench@us.ibm.com)
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 78829e7..1959c7c 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -50,7 +50,7 @@
return 0;
}
-int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct cifsSesInfo * ses,
+int cifs_sign_smb(struct smb_hdr * cifs_pdu, struct TCP_Server_Info * server,
__u32 * pexpected_response_sequence_number)
{
int rc = 0;
@@ -59,21 +59,21 @@
/* BB remember to initialize sequence number elsewhere and initialize mac_signing key elsewhere BB */
/* BB remember to add code to save expected sequence number in midQ entry BB */
- if((cifs_pdu == NULL) || (ses == NULL))
+ if((cifs_pdu == NULL) || (server == NULL))
return -EINVAL;
if((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0)
return rc;
spin_lock(&GlobalMid_Lock);
- cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(ses->sequence_number);
+ cifs_pdu->Signature.Sequence.SequenceNumber = cpu_to_le32(server->sequence_number);
cifs_pdu->Signature.Sequence.Reserved = 0;
- *pexpected_response_sequence_number = ses->sequence_number++;
- ses->sequence_number++;
+ *pexpected_response_sequence_number = server->sequence_number++;
+ server->sequence_number++;
spin_unlock(&GlobalMid_Lock);
- rc = cifs_calculate_signature(cifs_pdu, ses->mac_signing_key,smb_signature);
+ rc = cifs_calculate_signature(cifs_pdu, server->mac_signing_key,smb_signature);
if(rc)
memset(cifs_pdu->Signature.SecuritySignature, 0, 8);
else
@@ -190,7 +190,7 @@
hmac_md5_update((const unsigned char *) unicode_buf,
(user_name_len+dom_name_len)*2,&ctx);
- hmac_md5_final(ses->mac_signing_key,&ctx);
+ hmac_md5_final(ses->server->mac_signing_key,&ctx);
kfree(ucase_buf);
kfree(unicode_buf);
return 0;
@@ -200,7 +200,7 @@
struct HMACMD5Context context;
memcpy(v2_session_response + 8, ses->server->cryptKey,8);
/* gen_blob(v2_session_response + 16); */
- hmac_md5_init_limK_to_64(ses->mac_signing_key, 16, &context);
+ hmac_md5_init_limK_to_64(ses->server->mac_signing_key, 16, &context);
hmac_md5_update(ses->server->cryptKey,8,&context);
/* hmac_md5_update(v2_session_response+16)client thing,8,&context); */ /* BB fix */