Linux: Required Packages

# SPDX-FileCopyrightText: 2020 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.150086");
  script_version("2023-07-27T05:05:09+0000");
  script_tag(name:"last_modification", value:"2023-07-27 05:05:09 +0000 (Thu, 27 Jul 2023)");
  script_tag(name:"creation_date", value:"2020-01-20 09:10:10 +0100 (Mon, 20 Jan 2020)");
  script_tag(name:"cvss_base", value:"0.0");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:H/Au:S/C:N/I:N/A:N");
  script_tag(name:"qod", value:"97");

  script_name("Linux: Required Packages");

  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone AG");
  script_family("Policy");
  script_dependencies("compliance_tests.nasl", "gather-package-list.nasl");
  script_mandatory_keys("Compliance/Launch");
  script_exclude_keys("ssh/no_linux_shell");

  script_add_preference(name:"Value", type:"entry", value:"tcpd", id:1);

  script_tag(name:"summary", value:"This script checks if all of the given packages are installed
on the host.");

  exit(0);
}

include("ssh_func.inc");
include("policy_functions.inc");

cmd = "[rpm -q, dpkg -s] PACKAGE";
title = "Required Packages";
solution = "Install packages";
test_type = "SSH_Cmd";
default = script_get_preference("Value", id:1);

if(!get_kb_item("login/SSH/success")) {
  value = "Error";
  compliant = "incomplete";
  note = "No SSH connection possible";
} else {
  package_list = split(default, sep:",", keep:FALSE);
  foreach package (package_list) {
    version = get_package_version(package:package);
    if(!version)
      value += "," + package;
  }

  if(value) {
    value = str_replace(string:value, find:",", replace:"", count:1);
    compliant = "no";
  } else {
    compliant = "yes";
    value = "None";
  }
  note = "'Actual Value' show missing packages.";
}

policy_reporting(result:value, default:default, compliant:compliant, fixtext:solution,
  type:test_type, test:cmd, info:note);
policy_set_kbs(type:test_type, cmd:cmd, default:default, solution:solution, title:title,
  value:value, compliant:compliant);

exit(0);