// stream.proto

// FIXME: Re-evaluate Tag Values

package OstProto;

// Ethernet
message Mac {

	enum MacAddrMode {
		e_mm_fixed = 0;
		e_mm_inc = 1;
		e_mm_dec = 2;
	}

	// Dst Mac
	optional uint64			dst_mac = 1;
	optional MacAddrMode	dst_mac_mode = 2 [default = e_mm_fixed];
	optional uint32			dst_mac_count = 3 [default = 16];
	optional uint32			dst_mac_step = 4 [default = 1];

	// Src Mac
	optional uint32			src_mac = 5;
	optional MacAddrMode	src_mac_mode = 6 [default = e_mm_fixed];
	optional uint32			src_mac_count = 7 [default = 16];
	optional uint32			src_mac_step = 8 [default = 1];
}

message Llc {
	optional uint32			dsap = 1;
	optional uint32			ssap = 2;
	optional uint32			ctl = 3;
}

message Snap {
	optional uint32			oui = 1;
	//optional uint32			type = 2;
}

message Eth2 {
	optional uint32			type = 1;
}

message Vlan {
	// VLAN presence/absence
	optional bool is_cvlan_tagged = 9;
	optional bool is_ctpid_override = 10;
	optional bool is_svlan_tagged = 11;
	optional bool is_stpid_override = 12;

	// VLAN values
	optional uint32	ctpid = 13;
	optional uint32	cvlan_tag = 14; // includes prio, cfi and cvlanid
	optional uint32	stpid = 15;
	optional uint32	svlan_tag = 16; // includes pcp, de and svlanid
}

// IP
message Ip {

	enum IpAddrMode {
		e_im_fixed = 0;
		e_im_inc_host = 1;
		e_im_dec_host = 2;
		e_im_random_host = 3;
	}

	optional bool is_override_ver	= 1;
	optional bool is_override_hdrlen = 2;
	optional bool is_override_totlen = 3;
	optional bool is_override_cksum	= 4;

	optional uint32	ver_hdrlen = 5 [default = 0x45]; 
	optional uint32	tos = 6;
	optional uint32	tot_len = 7;
	optional uint32	id = 8 [default = 1234];
	// TODO: rename flags to frag_flags
	optional uint32	flags = 9;
	optional uint32	frag_ofs = 10;
	optional uint32	ttl = 11 [default = 127];
	optional uint32	proto = 12;
	optional uint32	cksum = 13;

	// Source IP
	optional fixed32	src_ip = 14;
	optional IpAddrMode	src_ip_mode = 15 [default = e_im_fixed];
	optional uint32		src_ip_count = 16 [default = 16];
	optional fixed32	src_ip_mask = 17 [default = 0xFFFFFFFF];
	
	// Destination IP
	optional fixed32	dst_ip = 18;
	optional IpAddrMode	dst_ip_mode = 19 [default = e_im_fixed];
	optional uint32		dst_ip_count = 20 [default = 16];
	optional fixed32	dst_ip_mask = 21 [default = 0xFFFFFFFF];

	// TODO: Options
}

message Arp {
// TODO: ARP
}

message Tcp {

	optional bool is_override_hdrlen = 1;	
	optional bool is_override_cksum = 2;	

	optional uint32		src_port = 3 [default = 8902];
	optional uint32		dst_port = 4 [default = 80];

	optional uint32		seq_num = 5 [default = 129018];
	optional uint32		ack_num = 6;

	optional uint32		hdrlen_rsvd = 7 [default = 0x50];
	optional uint32		flags = 8;

	optional uint32		window = 9 [default = 1024];
	optional uint32		cksum = 10;
	optional uint32		urg_ptr = 11;
}

// UDP
message Udp {
	optional bool is_override_totlen = 1;	
	optional bool is_override_cksum = 2;	

	optional uint32		src_port = 3 [default = 8902];
	optional uint32		dst_port = 4 [default = 80];
	optional uint32		totlen = 5;
	optional uint32		cksum = 6;
}

// TODO: ICMP
message Icmp {
}

// TODO: IGMP
message Igmp {
}

message StreamId {
	required uint32	id = 1;
}

message StreamCore {

	enum FrameType {
		e_ft_none = 0;
		e_ft_eth_2 = 1;
		e_ft_802_3_raw = 2;
		e_ft_802_3_llc = 3;
		e_ft_snap = 4;
	}

	enum L3Proto {
		e_l3_none = 0;
		e_l3_ip = 1;
		e_l3_arp = 2;
		//e_l3_other = 3;
	}

	enum L4Proto {
		e_l4_none = 0;
		e_l4_tcp = 1;
		e_l4_udp = 2;
		e_l4_icmp = 3;
		e_l4_igmp = 4;
		//e_l4_other = 5;
	}

	enum DataPatternMode {
		e_dp_fixed_word = 0;
		e_dp_inc_byte = 1;
		e_dp_dec_byte = 2;
		e_dp_random = 3;
	}

	enum FrameLengthMode {
		e_fl_fixed = 0;
		e_fl_inc = 1;
		e_fl_dec = 2;
		e_fl_random = 3;
	}
	
	// Basics
	optional string	name = 1;
	optional bool	is_enabled = 2;
	optional uint32	ordinal = 3;

	// Data Pattern
	optional DataPatternMode	pattern_mode = 11;
	optional uint32				pattern = 12;
	optional uint32				data_start_ofs = 13;

	// Frame Length (includes CRC)
	optional FrameLengthMode	len_mode = 14 [default = e_fl_fixed];
	optional uint32				frame_len = 15 [default = 64];
	optional uint32				frame_len_min = 16 [default = 64];
	optional uint32				frame_len_max = 17 [default = 1518];

	// Currently Selected Protocols
	optional FrameType	ft = 21 [default = e_ft_none];
	optional L3Proto	l3_proto = 22;
	optional L4Proto	l4_proto = 23;
}

message StreamControl {
	enum SendUnit {
		e_su_packets = 0;
		e_su_bursts = 1;
	}

	enum SendMode {
		e_sm_fixed = 0;
		e_sm_continuous = 1;
	}

	enum NextWhat {
		e_nw_stop = 0;
		e_nw_goto_next = 1;
		e_nw_goto_id = 2;
	}

	optional SendUnit	unit = 1 [default = e_su_packets];
	optional SendMode	mode = 2 [default = e_sm_fixed];
	optional uint32		num_packets = 3 [default = 1];
	optional uint32		num_bursts = 4 [default = 1];
	optional uint32		packets_per_burst = 5 [default = 10];
	optional NextWhat	next = 6 [default = e_nw_goto_next];
	optional uint32		packets_per_sec = 7;
	optional uint32		bursts_per_sec = 8;

	// TODO: Gaps?

}

message Stream {

	required StreamId stream_id = 1;
	optional StreamCore core = 2;
	optional StreamControl control = 3;

	// Protocol data - L2
	optional Mac 	mac = 51;

	optional Llc 	llc = 52;
	optional Snap 	snap = 53;
	optional Eth2 	eth2 = 54;
	optional Vlan 	vlan = 55;

	// Protocol data - L3	
	optional Ip		ip = 61;
	optional Arp	arp = 62;

	// Protocol data - L4
	optional Tcp	tcp = 71;
	optional Udp	udp = 72;
	optional Icmp	icmp = 73;
	optional Igmp	igmp = 74;

}

message Void {
	// nothing!
}

message Ack {
	// TODO
}

message PortId {
	required uint32 id = 1;
}

message PortIdList {
	repeated PortId port_id = 1;
}

message StreamIdList {
	required PortId port_id = 1;
	repeated StreamId stream_id = 2;
}


message Port {
	required PortId port_id = 1;
	optional string name = 2;
	optional string description = 3;
	optional bool is_enabled = 4;
	optional bool is_oper_up = 5;
	optional bool is_exclusive_control = 6;
}

message PortConfigList {
	repeated Port port = 1;
}

message StreamConfigList {
	required PortId	port_id = 1;
	repeated Stream stream = 2;
}

message CaptureBuffer {
	// TODO
}

message CaptureBufferList {
	repeated CaptureBuffer list = 1;
}

message PortStats {
	required PortId	port_id = 1;

	optional uint64 rx_pkts = 11;
	optional uint64 rx_bytes = 12;
	optional uint64 rx_pkts_nic = 13;
	optional uint64 rx_bytes_nic = 14;
	optional uint64 rx_pps = 15;
	optional uint64 rx_bps = 16;

	optional uint64 tx_pkts = 21;
	optional uint64 tx_bytes = 22;
	optional uint64 tx_pkts_nic = 23;
	optional uint64 tx_bytes_nic = 24;
	optional uint64 tx_pps = 25;
	optional uint64 tx_bps = 26;
}

message PortStatsList {
	repeated PortStats port_stats = 1;
}

service OstService {
	rpc getPortIdList(Void) returns (PortIdList);
	rpc getPortConfig(PortIdList) returns (PortConfigList);

	rpc getStreamIdList(PortId) returns (StreamIdList);
	rpc getStreamConfig(StreamIdList) returns (StreamConfigList);
	rpc addStream(StreamIdList) returns (Ack);
	rpc deleteStream(StreamIdList) returns (Ack);
	rpc modifyStream(StreamConfigList) returns (Ack);

	rpc startTx(PortIdList) returns (Ack);
	rpc stopTx(PortIdList) returns (Ack);

	rpc startCapture(PortIdList) returns (Ack);
	rpc stopCapture(PortIdList) returns (Ack);
	rpc getCaptureBuffer(PortIdList) returns (CaptureBufferList);

	rpc getStats(PortIdList) returns (PortStatsList);
	rpc clearStats(PortIdList) returns (Ack);
}