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NAME

       orber_acl - Orber ACL operations

DESCRIPTION

       This  module  contains functions intended for analyzing Access Control List (ACL) filters.
       The filters uses a extended format of Classless Inter Domain Routing (CIDR). For  example,
       "123.123.123.10"  limits the connection to that particular host, while "123.123.123.10/17"
       allows connections to or from any host equal to the 17 most significant bits.  Orber  also
       allow   the   user   to   specify   a   certain   port   or   port   range,  for  example,
       "123.123.123.10/17#4001" and  "123.123.123.10/17#4001/5001"  respectively.  IPv4  or  none
       compressed IPv6 strings are accepted.

EXPORTS

       match(IP, Direction) -> boolean()
       match(IP, Direction, GetInfo) -> Reply

              Types:

                 IP = tuple() | [integer()]
                 Direction = tcp_in | ssl_in | tcp_out | ssl_out
                 GetInfo = boolean()
                 Reply = boolean() | {boolean(), [Interface], PortInfo}
                 Interface = string()
                 PortInfo = integer() | {integer(), integer()}

              If  GetInfo is not supplied or set to false, this operation returns a boolean which
              tells if the IPv4 or IPv6 address  would  pass  the  ACL  filter,  defined  by  the
              iiop_acl  configuration  parameter,  or  not.  When GetInfo is set to true, a tuple
              which, besides the boolean that tells if  access  was  granted,  also  include  the
              defined  interfaces  and port(s). This operation requires that Orber is running and
              can be used on a live node to determine if Orber has been properly configured.

       verify(IP, Filter, Family) -> Reply

              Types:

                 IP = string()
                 Filter = string()
                 Family = inet | inet6
                 Reply = true | {false, From, To} | {error, string()}
                 From = string()
                 To = string()

              This operation returns true if the IPv4 or IPv6 address  would  pass  the  supplied
              ACL.  If  that  is not the case, a tuple containing the accepted range is returned.
              This operation should only be used for test purposes.

       range(Filter, Family) -> Reply

              Types:

                 Filter = string()
                 Family = inet | inet6
                 Reply = {ok, From, To} | {error, string()}
                 From = string()
                 To = string()

              Returns the range of accepted IP addresses  based  on  the  supplied  filter.  This
              operation should only be used for test purposes.