596 	off_t offset_s = TPM_HEADER_SIZE, offset_p;  in tpm_buf_fill_hmac_session()  local
625 		u32 handle = tpm_buf_read_u32(buf, &offset_s);  in tpm_buf_fill_hmac_session()
634 	val = tpm_buf_read_u32(buf, &offset_s);  in tpm_buf_fill_hmac_session()
636 	offset_p = offset_s + val;  in tpm_buf_fill_hmac_session()
637 	for (i = 1; offset_s < offset_p; i++) {  in tpm_buf_fill_hmac_session()
638 		u32 handle = tpm_buf_read_u32(buf, &offset_s);  in tpm_buf_fill_hmac_session()
643 		len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_fill_hmac_session()
644 		offset_s += len;  in tpm_buf_fill_hmac_session()
646 		a = tpm_buf_read_u8(buf, &offset_s);  in tpm_buf_fill_hmac_session()
648 		len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_fill_hmac_session()
650 			hmac = &buf->data[offset_s];  in tpm_buf_fill_hmac_session()
658 		offset_s += len;  in tpm_buf_fill_hmac_session()
660 	if (offset_s != offset_p) {  in tpm_buf_fill_hmac_session()
706 	if (offset_s != tpm_buf_length(buf))  in tpm_buf_fill_hmac_session()
707 		sha256_update(&sctx, &buf->data[offset_s],  in tpm_buf_fill_hmac_session()
708 			      tpm_buf_length(buf) - offset_s);  in tpm_buf_fill_hmac_session()
755 	off_t offset_s, offset_p;  in tpm_buf_check_hmac_response()  local
789 	offset_s = TPM_HEADER_SIZE + handles * 4;  in tpm_buf_check_hmac_response()
790 	parm_len = tpm_buf_read_u32(buf, &offset_s);  in tpm_buf_check_hmac_response()
791 	offset_p = offset_s;  in tpm_buf_check_hmac_response()
792 	offset_s += parm_len;  in tpm_buf_check_hmac_response()
795 		len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_check_hmac_response()
796 		offset_s += len + 1;  in tpm_buf_check_hmac_response()
797 		len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_check_hmac_response()
798 		offset_s += len;  in tpm_buf_check_hmac_response()
801 	len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_check_hmac_response()
802 	if (offset_s + len > tpm_buf_length(buf))  in tpm_buf_check_hmac_response()
806 	memcpy(auth->tpm_nonce, &buf->data[offset_s], len);  in tpm_buf_check_hmac_response()
807 	offset_s += len;  in tpm_buf_check_hmac_response()
808 	attrs = tpm_buf_read_u8(buf, &offset_s);  in tpm_buf_check_hmac_response()
809 	len = tpm_buf_read_u16(buf, &offset_s);  in tpm_buf_check_hmac_response()
810 	if (offset_s + len != tpm_buf_length(buf))  in tpm_buf_check_hmac_response()
837 	if (memcmp(rphash, &buf->data[offset_s], SHA256_DIGEST_SIZE) == 0) {  in tpm_buf_check_hmac_response()