1Net::SSH::Perl::Auth(3)User Contributed Perl DocumentatioNnet::SSH::Perl::Auth(3)
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6 Net::SSH::Perl::Auth - Base authentication class, plus utility methods
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9 use Net::SSH::Perl::Cipher;
10 # Get list of supported authentication IDs.
12 my $supported = Net::SSH::Perl::Auth::supported();
13 # Translate an auth name into an ID.
15 my $id = Net::SSH::Perl::Auth::id($name);
16 # Translate an auth ID into a name.
18 my $name = Net::SSH::Perl::Auth::name($id);
19 # Get the order in which auth methods are tested.
21 my $order = Net::SSH::Perl::Auth::order();
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24 Net::SSH::Perl::Auth provides a base class for each of the
25 authentication method classes. In addition, it defines a set of utility
26 methods that can be called either as functions or object methods.
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29 supported( [ $auth_id [, $server_supports ] ])
30 Without arguments, returns a reference to an array of auth methods
31 supported by Net::SSH::Perl. These are methods that have working
32 Net::SSH::Perl::Auth:: implementations, essentially.
33 With one argument $auth_id, returns a true value if that auth method is
35 supported by Net::SSH::Perl, and false otherwise.
36 With two arguments, $auth_id and $server_supports, returns true if the
38 auth represented by $auth_id is supported both by Net::SSH::Perl and by
39 the sshd server. The list of methods supported by the server should be
40 in $server_supports, a bit mask sent from the server during the session
41 identification phase.
42 Can be called either as a non-exported function, i.e.
44 my $i_support = Net::SSH::Perl::Auth::supported();
46 or as an object method of a Net::SSH::Perl::Auth object, or an object
48 of a subclass (in which case the first argument should be
49 $server_supports, not the $auth_id):
50 if ($auth->supported($server_supports)) {
52 print "Server supports auth method $auth";
53 }
54 id( [ $auth_name ] )
56 Translates an auth method name into an ID (suitable for sending to the
57 sshd server, for example).
58 If given $auth_name translates that name into the corresponding ID. If
60 called as an object method, translates the object's auth class name
61 into the ID.
62 name( [ $auth_id ] )
64 Translates an auth method ID into a name.
65 If given $auth_id translates that ID into the corresponding name. If
67 called as an object method, returns the (stripped) object's auth class
68 name; for example, if the object were of type
69 Net::SSH::Perl::Auth::Rhosts, name would return Rhosts.
70 auth_order()
72 Returns a reference to an array containing auth method IDs. These IDs
73 describe the order in which authentication should be tested against the
74 server. So, for example, if the array listed (2, 4, 3), then the client
75 should test: RSA, then Rhosts-RSA, then Password authentication.
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78 Net::SSH::Perl::Auth->new($auth_name, $ssh)
79 Instantiates a new auth object of the type $auth_name, and gives it the
80 Net::SSH::Perl object $ssh, which should contain an open connection to
81 an sshd server.
82 Returns the auth object, which will be blessed into the actual auth
84 subclass.
85 $valid = $auth->authenticate()
87 Talks to the sshd server to authenticate the user; if valid, returns
88 true, and if invalid, returns false.
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91 Classes implementing an authentication method must implement the
92 following two methods:
93 • $class->new($ssh)
95 Given a Net::SSH::Perl object $ssh, should construct a new auth
97 object and bless it into $class, presumably.
98 • $class->authenticate()
100 Authenticate the current user with the remote daemon. This requires
102 following the messaging protocol defined for your authentication
103 method. All of the data you need--user name, password (if
104 required), etc.--should be in the $ssh object.
105 Returns 1 if the authentication is successful, 0 otherwise.
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109 Please see the Net::SSH::Perl manpage for author, copyright, and
110 license information.
111perl v5.34.0 2022-03-04 Net::SSH::Perl::Auth(3)