# orber_acl

### MODULE

orber_acl

### MODULE SUMMARY

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.

### AUTHORS

Support - support@erlang.ericsson.se

orber 3.6.4
Copyright © 1991-2007 Ericsson AB