module sonic-acl {
	namespace "http://github.com/Azure/sonic-acl";
	prefix sacl;
	yang-version 1.1;

	import ietf-yang-types {
		prefix yang;
	}

	import ietf-inet-types {
		prefix inet;
	}

	import sonic-common {
		prefix scommon;
	}

	import sonic-port {
		prefix prt;
	}

	import sonic-portchannel {
		prefix spc;
	}

	import sonic-mirror-session {
		prefix sms;
	}

	import sonic-pf-limits {
		prefix spf;
	}

	organization
		"BRCM";

	contact
		"BRCM";

	description
		"SONIC ACL";

	revision 2019-05-15 {
		description
			"Initial revision.";
	}

	container sonic-acl {
			scommon:db-name "CONFIG_DB";

		list ACL_TABLE {
			key "aclname";
			scommon:key-delim "|";
			scommon:key-pattern "ACL_TABLE|{aclname}";

			/* must "count(/prt:sonic-port/prt:PORT) > 0"; */

			leaf aclname {
				type string;
			}

			leaf policy_desc {
				type string {
					length 1..255 {
						error-app-tag policy-desc-invalid-length;
					}
				}
			}

			leaf stage {
				type enumeration {
					enum INGRESS;
					enum EGRESS;
				}
			}

			leaf type {
				type enumeration {
					enum MIRROR;
					enum L2;
					enum L3;
					enum L3V6;
				}
			}

			leaf-list ports {
				/*type union { */
					type leafref {
						path "/prt:sonic-port/prt:PORT/prt:ifname";
					}
			/*		type leafref {
						path "/spc:sonic-portchannel/spc:PORTCHANNEL/spc:name";
					}
				}*/
			}
		}

		list ACL_RULE { 
			key "aclname rulename";
			scommon:key-delim "|";
			scommon:key-pattern "ACL_RULE|{aclname}|{rulename}";
			scommon:pf-check    "ACL_CheckAclLimits";	

			/* Limit for number of dynamic ACL rules */	
			/*must "count(../ACL_RULE) > /spf:sonic-pf-limits/acl/MAX_ACL_RULES" {
				error-message "Number of ACL rules reached max platform limit.";
			}
			must "PRIORITY > /spf:sonic-pf-limits/acl/MAX_PRIORITY" {
				error-message "Invalid ACL rule priority.";
			}
			 must "count(../ACL_TABLE) > 0 and count(/prt:sonic-port/prt:PORT) > 0"; //Temporary work-around 
			 */

			leaf aclname {
				type leafref {
					path "../../ACL_TABLE/aclname";
				}
				must "(/scommon:operation/scommon:operation != 'DELETE') or " +
					"count(../../ACL_TABLE[aclname=current()]/ports) = 0" {
						error-message "Ports are already bound to this rule.";
				}
			} 

			leaf rulename {
				type string;
			}

			leaf PRIORITY {
				type uint16 {
					range "1..65535";
				}
			}

			leaf RULE_DESCRIPTION {
				type string;
			}

			leaf PACKET_ACTION {
				type enumeration {
					enum FORWARD;
					enum DROP;
					enum REDIRECT;
				}
			}

			leaf MIRROR_ACTION {
				type leafref {
					path "/sms:sonic-mirror-session/sms:MIRROR_SESSION/sms:name";
				}
			}

			leaf IP_TYPE {
				type enumeration {
					enum any;
					enum ip;
					enum ipv4;
					enum ipv4any;
					enum non_ipv4;
					enum ipv6any;
					enum non_ipv6;
				}
			}
		
			leaf IP_PROTOCOL {
				type uint8 {
					range "1|2|6|17|46|47|51|103|115";
				}
			}

			leaf ETHER_TYPE {
				type string{
					pattern "(0x88CC)|(0x8100)|(0x8915)|(0x0806)|(0x0800)|(0x86DD)|(0x8847)";
				}
			}

			choice ip_src_dst {
				case ipv4_src_dst {
					leaf SRC_IP {
						mandatory true;
						type inet:ipv4-prefix;
					}
					leaf DST_IP {
						mandatory true;
						type inet:ipv4-prefix;
					}
				}
				case ipv6_src_dst {
					leaf SRC_IPV6 {
						mandatory true;
						type inet:ipv6-prefix;    
					}
					leaf DST_IPV6 {
						mandatory true;
						type inet:ipv6-prefix;    
					}
				}
			}

			choice src_port {
				case l4_src_port {
					leaf L4_SRC_PORT {
						type uint16;
					}
				}
				case l4_src_port_range {
					leaf L4_SRC_PORT_RANGE {
						type string {
							pattern "[0-9]{1,5}(-)[0-9]{1,5}";
						}
					}
				}
			}

			choice dst_port {
				case l4_dst_port {
					leaf L4_DST_PORT {
						type uint16;
					}
				}
				case l4_dst_port_range {
					leaf L4_DST_PORT_RANGE {
						type string {
							pattern "[0-9]{1,5}(-)[0-9]{1,5}";
						}
					}
				}
			}

			leaf TCP_FLAGS { 
				type string {
					pattern "0[xX][0-9a-fA-F]{2}[/]0[xX][0-9a-fA-F]{2}";
				}
			}

			leaf DSCP { 
				type uint8;
			}
		}

		container state {
			config false;

			leaf MATCHED_PACKETS {
				type yang:counter64;
			}

			leaf MATCHED_OCTETS {
				type yang:counter64;
			}
		}
	}
}