Protobuf

syntax = "proto3";

package stream_changer;

message Request{
    int32 fd = 1;

    // структура для отправки

    message scst_user_get_cmd {
        sint32 cmd_h = 1;
        sint32 subcode = 2;
        sint64 preply=3;

        message scst_user_sess{
            sint64 sess_h=1;
            sint64 lun=2;
            sint32 threads_num=3;
            sint32 rd_only=4;
            sint32 scsi_transport_version=5;
            sint32 phys_transport_version=6;
            string initiator_name=7;
            string target_name=8;
        }
        scst_user_sess sess=4;

        message scst_user_scsi_cmd_parse{
            sint64 sess_h=1;
            repeated sint32 cdb=2;
            sint32 cdb_len=3;
            sint64 lba=4;
            sint64 data_len=5;
            int32 bufflen=6;
            int32 out_bufflen=7;
            sint32 timeout=8;
            sint32 op_flags=9;
            sint32 queue_type=10;
            sint32 data_direction=11;
            sint32 expected_values_set=12;
            sint32 expected_data_direction=13;
            int32 expected_transfer_len=14;
            int32 expected_out_transfer_len=15;
            sint32 sn=16;
        }
        scst_user_scsi_cmd_parse parse_cmd=5;

        message scst_user_scsi_cmd_alloc_mem{
            sint64 sess_h=1;
            repeated sint32 cdb=2;
            int32 alloc_len=3;
            sint32 queue_type=4;
            sint32 data_direction=5;
            sint32 sn=6;
        }
        scst_user_scsi_cmd_alloc_mem alloc_cmd=6;

        message scst_user_scsi_cmd_exec{
            sint64 sess_h=1;
            repeated sint32 cdb=2;
            sint32 cdb_len=3;
            int64 lba=4;
            int64 data_len=5;
            int32 bufflen=6;
            int32 alloc_len=7;
            sint64 pbuf=8;
            sint32 queue_type=9;
            sint32 data_direction=10;
            sint32 partial=11;
            int32 timeout=12;

            sint64 p_out_buf=13;
            int32 out_bufflen=14;

            sint32 sn=15;

            sint32 parent_cmd_h=16;
            int32 parent_cmd_data_len=17;
            sint32 partial_offset=18;
        }
        scst_user_scsi_cmd_exec exec_cmd=7;

        message scst_user_scsi_on_free_cmd{
            sint64 pbuf=1;
            int32 resp_data_len=2;
            sint32 buffer_cached=3;
            sint32 aborted=4;
            sint32 status=5;
            sint32 delivery_status=6;
        }
        scst_user_scsi_on_free_cmd on_free_cmd=8;

        message scst_user_on_cached_mem_free{
            sint64 pbuf=1;
        }
        scst_user_on_cached_mem_free on_cached_mem_free=9;

        message scst_user_tm{
            sint64 sess_h=1;
            sint32 fn=2;
            sint32 cmd_h_to_abort=3;
            sint32 cmd_sn=4;
            sint32 cmd_sn_set=5;
        }
        scst_user_tm tm_cmd=10;

        message scst_user_ext_copy_remap{
            sint64 sess_h=1;
            sint64 src_sess_h=2;
            sint64 dst_sess_h=3;
            message scst_user_ext_copy_data_descr{
                sint64 src_lba=1;
                sint64 dst_lba=2;
                int32 data_len=3;
            }
            scst_user_ext_copy_data_descr data_descr=4;
        }
        scst_user_ext_copy_remap remap_cmd=11;
    }
    scst_user_get_cmd cmd=2;

    message vdisk_dev{
        int32 scst_usr_fd=1;
        sint32 block_size=2;
        sint64 nblocks=3;
        int32 block_shift=4;
        int64 file_size=5;
        //pthread_mutex_t dev_mutex; - видимо опустим это поле
        sint32 rd_only_flag=6;
        sint32 wt_flag=7;
        sint32 nv_cache=8;
        sint32 o_direct_flag=9;
        sint32 media_changed=10;
        sint32 prevent_allow_medium_removal=11;
        sint32 nullio=12;
        sint32 cdrom_empty=13;
        sint32 non_blocking=14;
//#if defined(DEBUG_TM_IGNORE) || defined(DEBUG_TM_IGNORE_ALL)
//        unsigned int debug_tm_ignore:1;
//#if defined(DEBUG_TM_IGNORE_ALL)
//	volatile int debug_tm_ignore_all;
//#endif
//#endif - это мы тоже не передаём
        message vdisk_tgt_dev{
            sint64 sess_h=1;
        }
        repeated vdisk_tgt_dev tgt_devs=15;
        string name=16;
        string file_name=17;
        string usn=18;
        int32 type=19;
    }
    vdisk_dev dev=3;

    sint32 may_need_to_free_pbuf = 4;

    message scst_user_reply_cmd{
        sint32 cmd_h=1;
        sint32 subcode=2;
        int32 result=3;

        message scst_user_scsi_cmd_reply_parse{
            sint32 status=1;
            //_________________________
            sint32 queue_type=2;
            sint32 data_direction=3;
            sint32 cdb_len=4;
            int64 lba=5;
            int64 data_len=6;
            int32 bufflen=7;
            sint32 op_flags=8;
            int32 out_bufflen=9;
            //_________________________
            sint32 sense_len=10;
            sint64 psense_buffer=11;
        }
        scst_user_scsi_cmd_reply_parse parse_reply=4;

        message scst_user_scsi_cmd_reply_alloc_mem{
            sint64 pbuf=1;
        }
        scst_user_scsi_cmd_reply_alloc_mem alloc_reply=5;

        message scst_user_scsi_cmd_reply_exec{
            int32 resp_data_len=1;
            sint64 pbuf=2;
            sint32 reply_type=3;
            sint32 status=4;
            //_________________________
            sint32 sense_len=5;
            sint64 psense_buffer=6;
            //_________________________
            sint32 ws_descriptors_len=7;
            sint64 ws_descriptors=8;
        }
        scst_user_scsi_cmd_reply_exec exec_reply=6;

        message scst_user_ext_copy_reply_remap{
            sint64 remap_descriptors=1;
            sint32 remap_descriptors_len=2;
            sint32 status=3;
            sint32 sense_len=4;
            sint64 psense_buffer=5;
        }
        scst_user_ext_copy_reply_remap remap_reply=7;
    }
    scst_user_reply_cmd reply=5;

    repeated sint32 sense = 6;
};

message Response{
    bool ok = 1;
}