/usr/lib/ruby/vendor_ruby/net/ssh/authentication/methods/abstract.rb is in ruby-net-ssh 1:2.6.8-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | require 'net/ssh/buffer'
require 'net/ssh/errors'
require 'net/ssh/loggable'
require 'net/ssh/authentication/constants'
module Net; module SSH; module Authentication; module Methods
# The base class of all user authentication methods. It provides a few
# bits of common functionality.
class Abstract
include Constants, Loggable
# The authentication session object
attr_reader :session
# The key manager object. Not all authentication methods will require
# this.
attr_reader :key_manager
# Instantiates a new authentication method.
def initialize(session, options={})
@session = session
@key_manager = options[:key_manager]
@options = options
self.logger = session.logger
end
# Returns the session-id, as generated during the first key exchange of
# an SSH connection.
def session_id
session.transport.algorithms.session_id
end
# Sends a message via the underlying transport layer abstraction. This
# will block until the message is completely sent.
def send_message(msg)
session.transport.send_message(msg)
end
# Creates a new USERAUTH_REQUEST packet. The extra arguments on the end
# must be either boolean values or strings, and are tacked onto the end
# of the packet. The new packet is returned, ready for sending.
def userauth_request(username, next_service, auth_method, *others)
buffer = Net::SSH::Buffer.from(:byte, USERAUTH_REQUEST,
:string, username, :string, next_service, :string, auth_method)
others.each do |value|
case value
when true, false then buffer.write_bool(value)
when String then buffer.write_string(value)
else raise ArgumentError, "don't know how to write #{value.inspect}"
end
end
buffer
end
end
end; end; end; end
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