utils

const (
	// FamillyInet IPV4.
	FamillyInet = "inet"
	// FamillyInet6 IPV6.
	FamillyInet6 = "inet6"

	// DefaultMaxElem Default OptionMaxElem value.
	DefaultMaxElem = "65536"
	// DefaultHasSize Defaul OptionHashSize value.
	DefaultHasSize = "1024"

	// TypeHashIP The hash:ip set type uses a hash to store IP host addresses (default) or network addresses. Zero
	// valued IP address cannot be stored in a hash:ip type of set.
	TypeHashIP = "hash:ip"
	// TypeHashMac The hash:mac set type uses a hash to store MAC addresses. Zero valued MAC addresses cannot be stored
	// in a hash:mac type of set.
	TypeHashMac = "hash:mac"
	// TypeHashNet The hash:net set type uses a hash to store different sized IP network addresses. Network address with
	// zero prefix size cannot be stored in this type of sets.
	TypeHashNet = "hash:net"
	// TypeHashNetNet The hash:net,net set type uses a hash to store pairs of different sized IP network addresses. Bear
	// in mind that the first parameter has precedence over the second, so a nomatch entry could be potentially be
	// ineffective if a more specific first parameter existed with a suitable second parameter. Network address with
	// zero prefix size cannot be stored in this type of set.
	TypeHashNetNet = "hash:net,net"
	// TypeHashIPPort The hash:ip,port set type uses a hash to store IP address and port number pairs. The port number
	// is interpreted together with a protocol (default TCP) and zero protocol number cannot be used.
	TypeHashIPPort = "hash:ip,port"
	// TypeHashNetPort The hash:net,port set type uses a hash to store different sized IP network address and port
	// pairs. The port number is interpreted together with a protocol (default TCP) and zero protocol number cannot be
	// used. Network address with zero prefix size is not accepted either.
	TypeHashNetPort = "hash:net,port"
	// TypeHashIPPortIP The hash:ip,port,ip set type uses a hash to store IP address, port number and a second IP
	// address triples. The port number is interpreted together with a protocol (default TCP) and zero protocol number
	// cannot be used.
	TypeHashIPPortIP = "hash:ip,port,ip"
	// TypeHashIPPortNet The hash:ip,port,net set type uses a hash to store IP address, port number and IP network
	// address triples. The port number is interpreted together with a protocol (default TCP) and zero protocol number
	// cannot be used. Network address with zero prefix size cannot be stored either.
	TypeHashIPPortNet = "hash:ip,port,net"
	// TypeHashIPMark The hash:ip,mark set type uses a hash to store IP address and packet mark pairs.
	TypeHashIPMark = "hash:ip,mark"
	// TypeHashIPNetPortNet The hash:net,port,net set type behaves similarly to hash:ip,port,net but accepts a cidr
	// value for both the first and last parameter. Either subnet is permitted to be a /0 should you wish to match port
	// between all destinations.
	TypeHashIPNetPortNet = "hash:net,port,net"
	// TypeHashNetIface The hash:net,iface set type uses a hash to store different sized IP network address and
	// interface name pairs.
	TypeHashNetIface = "hash:net,iface"
	// TypeListSet The list:set type uses a simple list in which you can store set names.
	TypeListSet = "list:set"

	// OptionTimeout All set types supports the optional timeout parameter when creating a set and adding entries. The
	// value of the timeout parameter for the create command means the default timeout value (in seconds) for new
	// entries. If a set is created with timeout support, then the same timeout option can be used to specify
	// non-default timeout values when adding entries. Zero timeout value means the entry is added permanent to the
	// set. The timeout value of already added elements can be changed by readding the element using the -exist option.
	// When listing the set, the number of entries printed in the header might be larger than the listed number of
	// entries for sets with the timeout extensions: the number of entries in the set is updated when elements
	// added/deleted to the set and periodically when the garbage colletor evicts the timed out entries.
	OptionTimeout = "timeout"
	// OptionCounters All set types support the optional counters option when creating a set. If the option is specified
	// then the set is created with packet and byte counters per element support. The packet and byte counters are
	// initialized to zero when the elements are (re-)added to the set, unless the packet and byte counter values are
	// explicitly specified by the packets and bytes options. An example when an element is added to a set with non-zero
	// counter values.
	OptionCounters = "counters"
	// OptionPackets All set types support the optional counters option when creating a set. If the option is specified
	// then the set is created with packet and byte counters per element support. The packet and byte counters are
	// initialized to zero when the elements are (re-)added to the set, unless the packet and byte counter values are
	// explicitly specified by the packets and bytes options. An example when an element is added to a set with non-zero
	// counter values.
	OptionPackets = "packets"
	// OptionBytes All set types support the optional counters option when creating a set. If the option is specified
	// then the set is created with packet and byte counters per element support. The packet and byte counters are
	// initialized to zero when the elements are (re-)added to the set, unless the packet and byte counter values are
	// explicitly specified by the packets and bytes options. An example when an element is added to a set with non-zero
	// counter values.
	OptionBytes = "bytes"
	// OptionComment All set types support the optional comment extension. Enabling this extension on an ipset enables
	// you to annotate an ipset entry with an arbitrary string. This string is completely ignored by both the kernel and
	// ipset itself and is purely for providing a convenient means to document the reason for an entry's existence.
	// Comments must not contain any quotation marks and the usual escape character (\) has no meaning.
	OptionComment = "comment"
	// OptionSkbinfo All set types support the optional skbinfo extension. This extension allow to store the metainfo
	// (firewall mark, tc class and hardware queue) with every entry and map it to packets by usage of SET netfilter
	// target with --map-set option. skbmark option format: MARK or MARK/MASK, where MARK and MASK are 32bit hex numbers
	// with 0x prefix. If only mark is specified mask 0xffffffff are used. skbprio option has tc class format:
	// MAJOR:MINOR, where major and minor numbers are hex without 0x prefix. skbqueue option is just decimal number.
	OptionSkbinfo = "skbinfo"
	// OptionSkbmark All set types support the optional skbinfo extension. This extension allow to store the metainfo
	// (firewall mark, tc class and hardware queue) with every entry and map it to packets by usage of SET netfilter
	// target with --map-set option. skbmark option format: MARK or MARK/MASK, where MARK and MASK are 32bit hex numbers
	// with 0x prefix. If only mark is specified mask 0xffffffff are used. skbprio option has tc class format:
	//MAJOR:MINOR, where major and minor numbers are hex without 0x prefix. skbqueue option is just decimal number.
	OptionSkbmark = "skbmark"
	// OptionSkbprio All set types support the optional skbinfo extension. This extension allow to store the metainfo
	// (firewall mark, tc class and hardware queue) with every entry and map it to packets by usage of SET netfilter
	// target with --map-set option. skbmark option format: MARK or MARK/MASK, where MARK and MASK are 32bit hex numbers
	// with 0x prefix. If only mark is specified mask 0xffffffff are used. skbprio option has tc class format:
	// MAJOR:MINOR, where major and minor numbers are hex without 0x prefix. skbqueue option is just decimal number.
	OptionSkbprio = "skbprio"
	// OptionSkbqueue All set types support the optional skbinfo extension. This extension allow to store the metainfo
	// (firewall mark, tc class and hardware queue) with every entry and map it to packets by usage of SET netfilter
	// target with --map-set option. skbmark option format: MARK or MARK/MASK, where MARK and MASK are 32bit hex numbers
	// with 0x prefix. If only mark is specified mask 0xffffffff are used. skbprio option has tc class format:
	// MAJOR:MINOR, where major and minor numbers are hex without 0x prefix. skbqueue option is just decimal number.
	OptionSkbqueue = "skbqueue"
	// OptionHashSize This parameter is valid for the create command of all hash type sets. It defines the initial hash
	// size for the set, default is 1024. The hash size must be a power of two, the kernel automatically rounds up non
	// power of two hash sizes to the first correct value.
	OptionHashSize = "hashsize"
	// OptionMaxElem This parameter is valid for the create command of all hash type sets. It does define the maximal
	// number of elements which can be stored in the set, default 65536.
	OptionMaxElem = "maxelem"
	// OptionFamilly This parameter is valid for the create command of all hash type sets except for hash:mac. It
	// defines the protocol family of the IP addresses to be stored in the set. The default is inet, i.e IPv4.
	OptionFamilly = "family"
	// OptionNoMatch The hash set types which can store net type of data (i.e. hash:*net*) support the optional nomatch
	// option when adding entries. When matching elements in the set, entries marked as nomatch are skipped as if those
	// were not added to the set, which makes possible to build up sets with exceptions. See the example at hash type
	// hash:net below. When elements are tested by ipset, the nomatch flags are taken into account. If one wants to test
	// the existence of an element marked with nomatch in a set, then the flag must be specified too.
	OptionNoMatch = "nomatch"
	// OptionForceAdd All hash set types support the optional forceadd parameter when creating a set. When sets created
	// with this option become full the next addition to the set may succeed and evict a random entry from the set.
	OptionForceAdd = "forceadd"
)

const (
	// Network Services Configuration Paths
	IPv4IPVSConntrack        = "net/ipv4/vs/conntrack"
	IPv4IPVSExpireNodestConn = "net/ipv4/vs/expire_nodest_conn"
	IPv4IPVSExpireQuiescent  = "net/ipv4/vs/expire_quiescent_template"
	IPv4IPVSConnReuseMode    = "net/ipv4/vs/conn_reuse_mode"
	IPv4ConfAllArpIgnore     = "net/ipv4/conf/all/arp_ignore"
	IPv4ConfAllArpAnnounce   = "net/ipv4/conf/all/arp_announce"

	// Network Routes Configuration Paths
	BridgeNFCallIPTables  = "net/bridge/bridge-nf-call-iptables"
	BridgeNFCallIP6Tables = "net/bridge/bridge-nf-call-ip6tables"

	// Template Configuration Paths
	IPv4ConfRPFilterTemplate = "net/ipv4/conf/%s/rp_filter"
)

const (
	IPInIPHeaderLength = 20
)