package core_unix

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package core_unix
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A representation of CIDR netmasks (e.g. "192.168.0.0/24") and functions to match if a given address is inside the range or not. Only IPv4 addresses are supported. Values are always normalized so the base address is the lowest IP address in the range, so for example to_string (of_string "192.168.1.101/24") = "192.168.1.0/24".

type t
include Sexplib0.Sexpable.S with type t := t
include Core.Bin_prot.Binable.S with type t := t
val arg_type : t Core.Command.Arg_type.t

of_string Generates a Cidr.t based on a string like "10.0.0.0/8". Addresses are not expanded, i.e. "10/8" is invalid.

include Core.Identifiable.S with type t := t
include Bin_prot.Binable.S with type t := t
val bin_size_t : t Bin_prot.Size.sizer
val bin_write_t : t Bin_prot.Write.writer
val bin_read_t : t Bin_prot.Read.reader
val __bin_read_t__ : (int -> t) Bin_prot.Read.reader
val bin_shape_t : Bin_prot.Shape.t
val bin_writer_t : t Bin_prot.Type_class.writer
val bin_reader_t : t Bin_prot.Type_class.reader
val bin_t : t Bin_prot.Type_class.t
include Ppx_hash_lib.Hashable.S with type t := t
include Sexplib0.Sexpable.S with type t := t
val t_of_sexp : Sexplib0__.Sexp.t -> t
include Ppx_compare_lib.Comparable.S with type t := t
include Ppx_hash_lib.Hashable.S with type t := t
val sexp_of_t : t -> Sexplib0.Sexp.t
val of_string : string -> t
val to_string : t -> string
val pp : Base__.Formatter.t -> t -> unit
include Core.Comparable.S_binable with type t := t
include Base.Comparable.S with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int
val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int
val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val clamp_exn : t -> min:t -> max:t -> t
val clamp : t -> min:t -> max:t -> t Base__.Or_error.t
type comparator_witness
val validate_lbound : min:t Core.Maybe_bound.t -> t Validate.check
val validate_ubound : max:t Core.Maybe_bound.t -> t Validate.check
val validate_bound : min:t Core.Maybe_bound.t -> max:t Core.Maybe_bound.t -> t Validate.check
module Replace_polymorphic_compare : sig ... end
include Core.Comparator.S with type t := t with type comparator_witness := comparator_witness
include Core.Hashable.S_binable with type t := t
include Ppx_hash_lib.Hashable.S with type t := t
val hash_fold_t : t Base__Ppx_hash_lib.hash_fold
val hash : t -> Base__Ppx_hash_lib.Std.Hash.hash_value
val hashable : t Core__.Hashtbl.Hashable.t
module Table : Core.Hashtbl.S_binable with type key = t
module Hash_set : Core.Hash_set.S_binable with type elt = t
module Hash_queue : Core.Hash_queue.S with type key = t
include Core.Invariant.S with type t := t
val invariant : t Base__Invariant_intf.inv
val create : base_address:Inet_addr.t -> bits:int -> t
val base_address : t -> Inet_addr.t

Accessors.

  • base_address 192.168.0.0/24 = 192.168.0.0
  • bits 192.168.0.0/24 = 24.
val bits : t -> int
val all_matching_addresses : t -> Inet_addr.t Core.Sequence.t

Generate a sequence of all addresses in the block.

val broadcast_address : t -> Inet_addr.t

Compute the broadcast address associated with the subnet (the top IP in the range). NB: The computed broadcast address may not be useful for small (/31 and /32) ranges.

val multicast : t

IPv4 multicast address can be represented by the CIDR prefix 224.0.0.0/4, (i.e. addresses from 224.0.0.0 to 239.255.255.255, inclusive)

val does_match : t -> Inet_addr.t -> bool

Is the given address inside the given Cidr.t? Note that the broadcast and network addresses are considered valid so does_match 10.0.0.0/8 10.0.0.0 is true.

val netmask_of_bits : t -> Inet_addr.t

Return the netmask corresponding to the number of network bits in the CIDR. For example, the netmask for a CIDR with 24 network bits (e.g. 1.2.3.0/24) is 255.255.255.0.

val is_subset : t -> of_:t -> bool

is_subset t1 ~of:t2 is true iff the set of IP addresses specified by t1 is a subset of those specified by t2.

If is_subset t1 ~of_:t2, then does_match t1 x implies does_match t2 x.

If does_match t1 x and does_match t2 x, then either is_subset t1 ~of_:t2 or is_subset t2 ~of_:t1 (or both).

module Stable : sig ... end
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