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58eae32688
* Updated nfs_file_systems example in docs Signed-off-by: Jennifer Burns <jburns@mitre.org>
102 lines
3 KiB
Ruby
102 lines
3 KiB
Ruby
# encoding: utf-8
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# copyright:
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# author: Matthew Dromazos
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require 'utils/parser'
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module Inspec::Resources
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class EtcFstab < Inspec.resource(1)
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name 'etc_fstab'
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desc 'Use the etc_fstab InSpec audit resource to check the configuration of the etc/fstab file.'
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example "
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nfs_systems = etc_fstab.nfs_file_systems.entries
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nfs_systems.each do |file_system|
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describe file_system do
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its ('mount_options') { should include 'nosuid' }
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its ('mount_options') { should include 'noexec' }
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its ('mount_options') { should include 'sec=krb5:krb5i:krb5p }
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end
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end
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describe etc_fstab do
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its ('home_mount_options') { should include 'nosuid' }
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end
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"
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attr_reader :params
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include CommentParser
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def initialize(fstab_path = nil)
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return skip_resource 'The `etc_fstab` resource is not supported on your OS.' unless inspec.os.linux?
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@conf_path = fstab_path || '/etc/fstab'
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@files_contents = {}
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@content = nil
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@params = nil
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read_content
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end
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filter = FilterTable.create
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filter.add_accessor(:where)
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.add_accessor(:entries)
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.add(:device_name, field: 'device_name')
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.add(:mount_point, field: 'mount_point')
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.add(:file_system_type, field: 'file_system_type')
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.add(:mount_options, field: 'mount_options')
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.add(:dump_options, field: 'dump_options')
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.add(:file_system_options, field: 'file_system_options')
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.add(:configured?) { |x| x.entries.any? }
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filter.connect(self, :params)
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def nfs_file_systems
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where { file_system_type.match(/nfs/) }
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end
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def home_mount_options
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return nil unless where { mount_point == '/home' }.configured?
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where { mount_point == '/home' }.entries[0].mount_options
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end
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private
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def read_content
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@content = ''
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@params = {}
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@content = read_file(@conf_path)
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@params = parse_conf(@content)
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end
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def parse_conf(content)
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content.map do |line|
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data, = parse_comment_line(line, comment_char: '#', standalone_comments: false)
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parse_line(data) unless data == ''
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end.compact
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end
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def parse_line(line)
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attributes = line.split
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{
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'device_name' => attributes[0],
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'mount_point' => attributes[1],
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'file_system_type' => attributes[2],
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'mount_options' => attributes[3].split(','),
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'dump_options' => attributes[4].to_i,
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'file_system_options' => attributes[5].to_i,
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}
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end
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def read_file(conf_path = @conf_path)
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file = inspec.file(conf_path)
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if !file.file?
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return skip_resource "Can't find \"#{@conf_path}\""
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end
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raw_conf = file.content
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if raw_conf.empty? && !file.empty?
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return skip_resource("File is empty or unable to read file at path:\"#{@conf_path}\"")
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end
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raw_conf.lines
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end
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end
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end
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