{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "https://github.com/linux-nvme/libnvme/doc/config-schema.json",
    "title": "config.json",
    "description": "libnvme JSON configuration",
    "type": "object",
    "properties": {
	"hosts": {
	    "description": "Array of NVMe Host properties",
	    "type": "array",
	    "items": { "$ref": "#/$defs/host" }
	}
    },
    "$defs": {
	"host": {
	    "description": "NVMe Host properties",
	    "type": "object",
	    "properties": {
		"hostnqn": {
		    "description": "NVMe host NQN",
		    "type": "string",
		    "maxLength": 223
		},
		"hostid": {
		    "description": "NVMe host ID",
		    "type": "string"
		},
		"dhchap_key": {
		    "description": "Host DH-HMAC-CHAP key",
		    "type": "string"
		},
		"hostsymname": {
		    "description": "NVMe host symbolic name",
		    "type": "string"
		},
		"persistent_discovery_ctrl": {
			"description": "Enable/disable Persistent Discovery Controller",
			"type": "boolean"
		},
		"required": [ "hostnqn" ],
		"subsystems": {
		    "description": "Array of NVMe subsystem properties",
		    "type": "array",
		    "items": { "$ref": "#/$defs/subsystem" }
		}
	    }
	},
	"subsystem": {
	    "description": "NVMe subsystem properties",
	    "type": "object",
	    "properties": {
		"nqn": {
		    "description": "Subsystem NQN",
		    "type": "string",
		    "maxLength": 223
		},
		"ports": {
		    "description": "Array of NVMe subsystem ports",
		    "type": "array",
		    "items": { "$ref": "#/$defs/port" }
		},
		"application": {
		    "description": "Program managing this subsystem",
		    "type": "string"
		},
		"required": [ "nqn" ]
	    }
	},
	"port": {
	    "description": "NVMe subsystem port",
	    "type": "object",
	    "properties": {
		"transport": {
		    "description": "Transport type",
		    "type": "string"
		},
		"traddr": {
		    "description": "Transport address",
		    "type": "string"
		},
		"host_traddr": {
		    "description": "Host transport address",
		    "type": "string"
		},
		"host_iface": {
		    "description": "Host interface name",
		    "type": "string"
		},
		"trsvcid": {
		    "description": "Transport service identifier",
		    "type": "string"
		},
		"dhchap_key": {
		    "description": "Host DH-HMAC-CHAP key",
		    "type": "string"
		},
		"dhchap_ctrl_key": {
		    "description": "Controller DH-HMAC-CHAP key",
		    "type": "string"
		},
		"keyring": {
		    "description": "Keyring for TLS key lookup",
		    "type": "string"
		},
		"tls_key_identity": {
		    "description": "PSK identity for the TLS PSK (tls_key)",
		    "type": "string"
		},
		"tls_key": {
		    "description": "TLS PSK in PSK interchange format",
		    "type": "string"
		},
		"nr_io_queues": {
		    "description": "Number of I/O queues",
		    "type": "integer"
		},
		"nr_write_queues": {
		    "description": "Number of write queues",
		    "type": "integer"
		},
		"nr_poll_queues": {
		    "description": "Number of poll queues",
		    "type": "integer"
		},
		"queue_size": {
		    "description": "Queue size",
		    "type": "integer"
		},
		"keep_alive_tmo": {
		    "description": "Keep-Alive timeout (in seconds)",
		    "type": "integer"
		},
		"reconnect_delay": {
		    "description": "Reconnect delay (in seconds)",
		    "type": "integer"
		},
		"ctrl_loss_tmo": {
		    "description": "Controller loss timeout (in seconds)",
		    "type": "integer"
		},
		"fast_io_fail_tmo": {
		    "description": "Fast I/O Fail timeout (in seconds)",
		    "type": "integer",
		    "default": 600
		},
		"tos": {
		    "description": "Type of service",
		    "type": "integer",
		    "default": -1
		},
		"duplicate_connect": {
		    "description": "Allow duplicate connections",
		    "type": "boolean",
		    "default": false
		},
		"disable_sqflow": {
		    "description": "Explicitly disable SQ flow control",
		    "type": "boolean",
		    "default": false
		},
		"hdr_digest": {
		    "description": "Enable header digest",
		    "type": "boolean",
		    "default": false
		},
		"data_digest": {
		    "description": "Enable data digest",
		    "type": "boolean",
		    "default": false
		},
		"tls": {
		    "description": "Enable TLS encryption",
		    "type": "boolean",
		    "default": false
		},
		"concat": {
		    "description": "Enable secure concatenation",
		    "type": "boolean",
		    "default": false
		},
		"persistent": {
		    "description": "Create persistent discovery connection",
		    "type": "boolean"
		},
		"discovery": {
		    "description": "Connect to a discovery controller",
		    "type": "boolean"
		}
	    },
	    "required": [ "transport" ]
	}
    }
}