40 static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,  in cifs_calculate_signature()  argument
45 	if (cifs_pdu == NULL || signature == NULL || server == NULL)  in cifs_calculate_signature()
63 		cifs_pdu->Protocol, cifs_pdu->smb_buf_length);  in cifs_calculate_signature()
71 int cifs_sign_smb(struct smb_hdr *cifs_pdu, struct TCP_Server_Info *server,  in cifs_sign_smb()  argument
77 	if ((cifs_pdu == NULL) || (server == NULL))  in cifs_sign_smb()
80 	if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0)  in cifs_sign_smb()
83 	cifs_pdu->Signature.Sequence.SequenceNumber =  in cifs_sign_smb()
85 	cifs_pdu->Signature.Sequence.Reserved = 0;  in cifs_sign_smb()
90 	rc = cifs_calculate_signature(cifs_pdu, server, smb_signature);  in cifs_sign_smb()
92 		memset(cifs_pdu->Signature.SecuritySignature, 0, 8);  in cifs_sign_smb()
94 		memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8);  in cifs_sign_smb()
152 	struct smb_hdr *cifs_pdu = iov[0].iov_base;  in cifs_sign_smb2()  local
154 	if ((cifs_pdu == NULL) || (server == NULL))  in cifs_sign_smb2()
157 	if ((cifs_pdu->Flags2 & SMBFLG2_SECURITY_SIGNATURE) == 0)  in cifs_sign_smb2()
160 	cifs_pdu->Signature.Sequence.SequenceNumber =  in cifs_sign_smb2()
162 	cifs_pdu->Signature.Sequence.Reserved = 0;  in cifs_sign_smb2()
169 		memset(cifs_pdu->Signature.SecuritySignature, 0, 8);  in cifs_sign_smb2()
171 		memcpy(cifs_pdu->Signature.SecuritySignature, smb_signature, 8);  in cifs_sign_smb2()
176 int cifs_verify_signature(struct smb_hdr *cifs_pdu,  in cifs_verify_signature()  argument
184 	if (cifs_pdu == NULL || server == NULL)  in cifs_verify_signature()
187 	if (cifs_pdu->Command == SMB_COM_NEGOTIATE)  in cifs_verify_signature()
190 	if (cifs_pdu->Command == SMB_COM_LOCKING_ANDX) {  in cifs_verify_signature()
192 			(struct smb_com_lock_req *)cifs_pdu;  in cifs_verify_signature()
201 	if (memcmp(cifs_pdu->Signature.SecuritySignature, "BSRSPYL ", 8) == 0)  in cifs_verify_signature()
203 			cifs_pdu->Command);  in cifs_verify_signature()
207 	memcpy(server_response_sig, cifs_pdu->Signature.SecuritySignature, 8);  in cifs_verify_signature()
209 	cifs_pdu->Signature.Sequence.SequenceNumber =  in cifs_verify_signature()
211 	cifs_pdu->Signature.Sequence.Reserved = 0;  in cifs_verify_signature()
214 	rc = cifs_calculate_signature(cifs_pdu, server,  in cifs_verify_signature()