cam/ctl/ctl_frontend_iscsi.c

682 	size_t copy_len, len, off, buffer_offset;
720 		buffer_offset = ntohl(bhsdo->bhsdo_buffer_offset);
722 		buffer_offset = 0;
729 	if (buffer_offset >
731 	    buffer_offset + len <=
734 		    "expected %zd; dropping connection", buffer_offset,
744 	 * to buffer_offset, which is the offset within the task (SCSI
748 	    buffer_offset;
2424 	size_t len, expected_len, sg_len, buffer_offset;
2458 	buffer_offset = io->scsiio.kern_rel_offset;
2474 	if (buffer_offset >= expected_len) {
2476 		CFISCSI_SESSION_DEBUG(cs, "buffer_offset = %zd, "
2477 		    "already sent the expected len", buffer_offset);
2506 			bhsdi->bhsdi_buffer_offset = htonl(buffer_offset);
2535 		KASSERT(buffer_offset + response->ip_data_len < expected_len,
2536 		    ("buffer_offset %zd + ip_data_len %zd >= expected_len %zd",
2537 		    buffer_offset, response->ip_data_len, expected_len));
2538 		if (buffer_offset + response->ip_data_len + len > expected_len) {
2541 			    buffer_offset + response->ip_data_len + len, expected_len);
2542 			len = expected_len - (buffer_offset + response->ip_data_len);
2561 		KASSERT(buffer_offset + response->ip_data_len <= expected_len,
2562 		    ("buffer_offset %zd + ip_data_len %zd > expected_len %zd",
2563 		    buffer_offset, response->ip_data_len, expected_len));
2564 		if (buffer_offset + response->ip_data_len == expected_len) {
2594 			buffer_offset += response->ip_data_len;
2595 			if (buffer_offset == io->scsiio.kern_total_len ||
2596 			    buffer_offset == expected_len) {
2597 				buffer_offset -= response->ip_data_len;
2606 		buffer_offset += response->ip_data_len;
2607 		if (buffer_offset == io->scsiio.kern_total_len ||
2608 		    buffer_offset == expected_len) {