{{#
    How to fix an audit rule that watches a file.

:param path: Full path of file to watch
:type path: str
:param key: Auditd key for the system
:type key: str
:param rule_path: Full path to where the rule wil
:type rule_path: str

#}}
{{% macro fixtext_audit_file_watch_rule(path, key, rule_path) -%}}
Configure {{{ full_name }}} to generate audit records for all account creations, modifications, disabling, and termination events that <tt>"{{{ path }}}"</tt>.

Add or update the following file system rule to <tt>"{{{ rule_path }}}"</tt>:

-w {{{ path }}} -p wa -k {{{ key }}}

The audit daemon must be restarted for the changes to take effect.
{{% endmacro %}}


{{% macro fixtext_audit_rules(event, key, event_group, extra_params=False, flag=None) -%}}
Configure the audit system to generate an audit event for any successful/unsuccessful use of the "{{{ event }}}" system call by adding or updating the following rules in "/etc/audit/audit.rules" and adding the following rules to "/etc/audit/rules.d/{{{ key }}}.rules" or updating the existing rules in files in the "/etc/audit/rules.d/" directory:

{{% if extra_params -%}}
{{% if flag -%}}
-a always,exit -F arch=b32 -S {{{ event }}} -F {{{ flag }}} -F exit=-EPERM -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
-a always,exit -F arch=b64 -S {{{ event }}} -F {{{ flag }}} -F exit=-EPERM -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}

-a always,exit -F arch=b32 -S {{{ event }}} -F {{{ flag }}} -F exit=-EACCES -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
-a always,exit -F arch=b64 -S {{{ event }}} -F {{{ flag }}} -F exit=-EACCES -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
{{% else -%}}
-a always,exit -F arch=b32 -S {{{ event }}} -F exit=-EPERM -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
-a always,exit -F arch=b64 -S {{{ event }}} -F exit=-EPERM -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}

-a always,exit -F arch=b32 -S {{{ event }}} -F exit=-EACCES -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
-a always,exit -F arch=b64 -S {{{ event }}} -F exit=-EACCES -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
{{% endif %}}
{{% else %}}
-a always,exit -F arch=b32 -S {{{ event }}} -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
-a always,exit -F arch=b64 -S {{{ event }}} -F auid>={{{ uid_min }}} -F auid!=unset -k {{{ key }}}
{{%- endif -%}}

{{%- if event_group %}}
It's allowed to group this system call within the same line as {{{ event_group }}}.
{{%- endif %}}

The audit daemon must be restarted for the changes to take effect.
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for file deletion events

:param syscall: syscall name
:type syscall: str

#}}
{{% macro fixtext_audit_rules_file_deletion_events(syscall) -%}}
{{{ fixtext_audit_rules(syscall, "delete", '"rename", "unlink", "rmdir", "renameat", and "unlinkat"') }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for dac modification events - chmod

:param syscall: syscall name
:type syscall: str

#}}
{{% macro fixtext_audit_rules_dac_modification_chmod(syscall) -%}}
{{{ fixtext_audit_rules(syscall, "perm_mod", '"chmod", "fchmod" and "fchmodat"') }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for dac modification events - chown

:param syscall: syscall name
:type syscall: str

#}}
{{% macro fixtext_audit_rules_dac_modification_chown(syscall) -%}}
{{{ fixtext_audit_rules(syscall, "perm_mod", '"chown", "fchown", "fchownat" and "lchown"') }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for dac modification events - attr

:param syscall: syscall name
:type syscall: str

#}}
{{% macro fixtext_audit_rules_dac_modification_attr(syscall) -%}}
{{{ fixtext_audit_rules(syscall, "perm_mod", '"fremovexattr", "lremovexattr", "removexattr", "fsetxattr", "lsetxattr" and "setxattr"') }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for unsuccessful file modification
    Used in rules using template audit_rules_unsuccessful_file_modification

:param syscall: syscall name
:type syscall: str
:param syscall_grouping: A list of other syscalls that can be audited with the
    same audit rules.
:type syscall_grouping: list[str]

#}}
{{% macro fixtext_audit_rules_unsuccessful_file_modification(syscall, syscall_grouping) -%}}
{{%- set syscall_grouping_text = join_list(syscall_grouping) -%}}
{{{ fixtext_audit_rules(syscall, "access", syscall_grouping_text, extra_params=True) }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for unsuccessful file modification
    when O_CREAT flag is specified.
    Used in rules using template audit_rules_unsuccessful_file_modification_o_creat

:param syscall: syscall name
:type syscall: str
:param pos: position of the O_CREAT argument in the syscall parameters
:type pos: str

#}}
{{% macro fixtext_audit_rules_unsuccessful_file_modification_o_creat(syscall, pos) -%}}
{{{ fixtext_audit_rules(syscall, "unsuccesful-create", '"open", "openat" and "open_by_handle_at"', extra_params=True, flag=pos+"&amp;0100") }}}
{{% endmacro %}}


{{#
    Generate a fixtext for audit rules for unsuccessful file modification
    when O_TRUNC_WRITE flag is specified.
    Used in rules using template audit_rules_unsuccessful_file_modification_o_trunc_write

:param syscall: syscall name
:type syscall: str
:param pos: position of the O_CREAT argument in the syscall parameters
:type pos: str

#}}
{{% macro fixtext_audit_rules_unsuccessful_file_modification_o_trunc_write(syscall, pos) -%}}
{{{ fixtext_audit_rules(syscall, "unsuccesful-modification", '"openat" and "open_by_handle_at"', extra_params=True, flag=pos+"&amp;01003") }}}
{{% endmacro %}}


{{#
    Generate a fixtext for ordering of audit rules for unsuccessful file modification.
    Used in rules using template audit_rules_unsuccessful_file_modification_rule_order.

:param syscall: syscall name
:type syscall: str

#}}
{{% macro fixtext_audit_rules_unsuccessful_file_modification_rule_order(syscall) -%}}
    Make sure that rules for unsuccessful calls of the {{{ syscall }}} syscall are in the order shown below.

    Create the file "/etc/audit/rules.d/30-ospp-v42-remediation.rules" and insert exactly this content:

    {{{ audit_remediation_unsuccessful_file_modification_detailed_audit_file_content() }}}

    The audit daemon must be restarted for the changes to take effect.
{{% endmacro %}}


{{#
    Human readable text for how to fix ini files

:param section: Section on the value to be set
:type section: str
:param parameter: parameter to be change
:type parameter: str
:param value: value to be set
:type value: str

#}}
{{%- macro fixtext_dconf_ini_file(section, parameter, value) -%}}
    The dconf settings can be edited in the /etc/dconf/db/* location.

    First, add or update the [{{{ section }}}] section of the "/etc/dconf/db/local.d/00-security-settings" database file and add or update the following lines:

    [{{{ section }}}]
    {{{ parameter }}}={{{ value }}}

    Then, add the following line to "/etc/dconf/db/local.d/locks/00-security-settings-lock" to prevent user modification:

    /{{{ section }}}/{{{ parameter }}}

    Finally, update the dconf system databases:

    $ sudo dconf update
{{%- endmacro -%}}


{{#
    Human readable text for how to lock dconf settings

:param section: Section on the value to be locked
:type section: str

#}}
{{%- macro fixtext_dconf_lock_settings(section) -%}}
    Configure the operating system to prevent a user from overriding settings for graphical user interfaces.

    Create a database to contain the system-wide screensaver settings (if it does not already exist) with the following command:

    Note: The example below is using the database "local" for the system, so if the system is using another database in "/etc/dconf/profile/user", the file should be created under the appropriate subdirectory.

    $ sudo touch /etc/dconf/db/local.d/locks/session

    Add the following setting to prevent non-privileged users from modifying it:

    {{{ section }}}
{{%- endmacro -%}}


{{#
    Describe how to fix an ssh configure

:param parameter: parameter to set
:type parameter: str
:parameter value: Value to set
:type value: str
:param config_is_distributed: Should the value go in 00-complianceascode-hardening.conf vs the main sshd config file
:type config_is_distributed: bool

#}}
{{%- macro fixtext_sshd_lineinfile(parameter, value, config_is_distributed) -%}}
{{%- if config_is_distributed -%}}
{{%- set path = "/etc/ssh/sshd_config.d/00-complianceascode-hardening.conf" -%}}
{{%- else -%}}
{{%- set path = "/etc/ssh/sshd_config" -%}}
{{%- endif -%}}
    To configure the system add or modify the following line in "{{{ path }}}".

    {{{parameter}}} {{{value}}}

    Restart the SSH daemon for the settings to take effect:

    $ sudo systemctl restart sshd.service

{{%- endmacro -%}}


{{#
    Describe how to enable a service

:param service: service to enable
:type service: str

#}}
{{%- macro fixtext_service_enabled(service) -%}}
    To enable the {{{ service }}} service run the following command:

    $ sudo systemctl enable --now {{{ service }}}
{{%- endmacro -%}}


{{#
    Describe how to disable a service

:param service: service to be disabled
:type service: str

#}}
{{%- macro fixtext_service_disabled(service) -%}}
    To disable the {{{ service }}} service run the following command:

    $ sudo systemctl disable --now {{{ service }}}

    $ sudo systemctl mask --now {{{ service }}}
{{%- endmacro -%}}


{{#
    Describe how to disable a socket

:param socket: socket to be disabled
:type socket: str

#}}
{{%- macro fixtext_socket_disabled(socket) -%}}
    To disable the {{{ socket }}} socket run the following command:

    $ sudo systemctl disable --now {{{ socket }}}

    $ sudo systemctl mask --now {{{ socket }}}
{{%- endmacro -%}}


{{#
    Macro describing fix for sysctl rules.

:param sysctl: The kernel parameter to be changed.
:type sysctl: str
:param value: The value of the kernel parameter.
:type value: str

#}}
{{% macro fixtext_sysctl(sysctl, value) -%}}
Add or edit the following line in a system configuration file in the "/etc/sysctl.d/" directory:
{{{ sysctl }}} = {{{ value }}}

Load settings from all system configuration files with the following command:

$ sudo sysctl --system
{{%- endmacro %}}


{{#
    Describe fix for GRUB 2 bootloader kernel argument
    This can be used for rules that use grub2_bootloader_argument template
    or have macro grub2_bootloader_argument_remediation in their remediation.

:param argument: Kernel argument
:type argument: str
:param value: The argument's value
:type value: str

#}}
{{% macro fixtext_grub2_bootloader_argument(argument, value) %}}
{{% if 'ubuntu' in product or product in ['rhel7', 'ol7', 'sle12', 'sle15'] %}}
Update the GRUB_CMDLINE_LINUX line in '/etc/default/grub' so that it contains {{{ argument }}}={{{ value }}}.
{{% endif -%}}

Run the following command:

$ sudo {{{ grub_command("add", argument + "=" + value) }}}
{{% endmacro %}}


{{#
    Describe fix for removal of a GRUB 2 bootloader kernel argument
    This can be used for rules that use grub2_bootloader_argument_absent template
    or have macro grub2_bootloader_argument_remediation in their remediation.

:param argument: Kernel argument
:type argument: str

#}}
{{% macro fixtext_grub2_bootloader_argument_absent(argument) %}}
{{%- if 'ubuntu' in product or product in ['rhel7', 'ol7', 'sle12', 'sle15'] -%}}
Update the GRUB_CMDLINE_LINUX line in '/etc/default/grub' so that it does not contain any occurrence of {{{ argument }}} using the following command:

$ sudo sed -i 's/\(^GRUB_CMDLINE_LINUX=".*\){{{ argument }}}=?[^[:space:]]*\(.*"\)/\1 \2/' '/etc/default/grub'
{{%- endif -%}}

Run the following command:

$ sudo {{{ grub_command("remove", argument) }}}
{{% endmacro %}}


{{#
    Macro describing fix for audit configuration.

:param param: The audit configuration to be changed.
:type param: str
:param value: The value of the audit configuration.
:type value: str

#}}
{{% macro fixtext_audit_configuration(param, value) -%}}
Edit the file "/etc/audit/auditd.conf" and add or edit the following line:
{{{ param }}} = {{{ value }}}

{{%- endmacro %}}


{{#
Fixtext macro describing configuration of mount option,
for rules using the mount_option template.

:param mountpoint: mount point on the filesystem eg. /dev/shm
:type mountpoint: str
:param mountoption: mount option, eg. nosuid, logdev=device or hidepid
:type mountoption: str

#}}
{{% macro fixtext_mount_option(mountpoint, mountoption) -%}}
Modify "/etc/fstab" to use the "{{{ mountoption }}}" option on the "{{{ mountpoint }}}" directory.
{{%- endmacro %}}


{{#
Fixtext for ensuring that a privileged command is audited.

:param cmd: The command to audit
:type cmd: str
:param path_prefix: The directory the command is in
:type path_prefix: str

#}}
{{% macro fixtext_audit_rules_privileged_commands(cmd, path_prefix, key) -%}}
Configure {{{ full_name }}} to generate audit records upon successful/unsuccessful attempts to use the "{{{ cmd }}}" command by adding or updating the following rule in "/etc/audit/rules.d/audit.rules":

-a always,exit -F path={{{path_prefix}}}{{{ cmd }}} -F perm=x -F auid>={{{ uid_min }}} -F auid!=unset -k {{% if key %}}{{{ key }}}{{% else %}}privileged-{{{ cmd }}}{{% endif %}}

The audit daemon must be restarted for the changes to take effect.
{{%- endmacro %}}


{{#
Fixtext for removing a package

:param package: The package to remove
:type package: str

#}}
{{% macro fixtext_package_removed(package) %}}
To remove the {{{ full_name }}} package {{{ package }}} run the following command:

{{{ package_remove(package) }}}
{{%- endmacro %}}


{{#
Fixtext for installing a package

:param package: The package to install
:type package: str

#}}
{{% macro fixtext_package_installed(package) %}}
To install the {{{ full_name }}} package {{{ package }}} run the following command:

{{{ package_install(package) }}}
{{%- endmacro %}}


{{#
Fixtext for disabling a kernel module

:param module: module to disable
:type module: str

#}}
{{% macro fixtext_kernel_module_disabled(module) %}}
Configure {{{ full_name }}} to disable the ability to use the {{{ module }}} kernel module.

Add or update the following lines in the file "/etc/modprobe.d/blacklist.conf":

install {{{ module }}} /bin/true
blacklist {{{ module }}}

Reboot the system for the settings to take effect.
{{%- endmacro %}}


{{#
Fixtext for setting the owner on a file.

:param file: The file to set the owner on
:type file: str
:param owner: The owner to be set
:type owner: str

#}}
{{% macro fixtext_file_owner(file, owner) %}}
Change the owner of the file {{{ file }}} to {{{ owner }}} by running the following command:

$ sudo chown {{{ owner }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for setting the group owner on a file.

:param file: The file to set the group owner on
:type file: str
:param group: The group to be set
:type group: str

#}}
{{% macro fixtext_file_group_owner(file, group) %}}
Change the group of the file {{{ file }}} to {{{ group }}} by running the following command:

$ sudo chgrp {{{ group }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for setting the owner on a directory.

:param file: The directory to set the owner on
:type file: str
:param owner: The owner to be set
:type owner: str

#}}
{{% macro fixtext_directory_owner(file, owner) %}}
Change the owner of the directory {{{ file }}} to {{{ owner }}} by running the following command:

$ sudo chown {{{ owner }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for setting the group owner on a directory.

:param file: The directory to set the group owner on
:type file: str
:param group: The group to be set
:type group: str

#}}
{{% macro fixtext_directory_group_owner(file, group) %}}
Change the group of the directory {{{ file }}} to {{{ group }}} by running the following command:

$ sudo chgrp {{{ group }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for setting the permissions on a directory.

:param file: The directory to set the permissions on
:type file: str
:param mode: The permissions to be set
:type mode: str

#}}
{{% macro fixtext_directory_permissions(file, mode) %}}
Change the permissions of the directory "{{{ file }}}" to "{{{ mode }}}" by running the following command:

$ sudo chmod {{{ mode }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for setting the permissions on a file.

:param file: The file to set the permissions on
:type file: str
:param mode: The permissions to be set
:type mode: str

#}}
{{% macro fixtext_file_permissions(file, mode) %}}
Configure the "{{{ file }}}" file to "{{{ mode }}}" by running the following command:

$ sudo chmod {{{ mode }}} {{{ file }}}
{{%- endmacro %}}


{{#
Fixtext for having a mount point on another partition

:param part: The mount point
:type part: str

#}}
{{% macro fixtext_separate_partition(part) -%}}
Migrate the "{{{ part }}}" path onto a separate file system.
{{%- endmacro %}}


{{#
Fixtext for how to restrict RBAC permissions for cluster logging

:param verb: The RBAC verb to restrict
:type verb: str

#}}
{{% macro fix_openshift_logging_rbac(verb) -%}}
Remove {{{ verb }}} permissions from any unauthorized user or group by performing one or more of the following commands:

* Remove role from user
> oc adm policy remove-role-from-user ROLE USER -n openshift-logging

* Remove role from group
> oc adm policy remove-role-from-group ROLE GROUP -n openshift-logging

* Remove cluster role from user
> oc adm policy remove-cluster-role-from-user CLUSTER_ROLE USER -n openshift-logging

* Remove cluster role from group
> oc adm policy remove-cluster-role-from-group CLUSTER_ROLE GROUP -n openshift-logging

Where ROLE/CLUSTER_ROLE is the role granting user {{{ verb }}} permission to resources in openshift-logging namespace.
{{%- endmacro %}}

{{#
Fixtext for how to restrict RBAC permissions for cluster logging

:param verb: The RBAC verb to restrict

#}}
{{% macro fix_openshift_rbac_least_privilege() -%}}
If users or groups exist that are bound to roles they must not have, modify the user or group permissions using the following cluster and local role binding commands:

Remove a User from a Cluster RBAC role by executing the following:

oc adm policy remove-cluster-role-from-user role username

Remove a Group from a Cluster RBAC role by executing the following:

oc adm policy remove-cluster-role-from-group role groupname

Remove a User from a Local RBAC role by executing the following:

oc adm policy remove-role-from-user role username

Remove a Group from a Local RBAC role by executing the following:

oc adm policy remove-role-from-group role groupname

NOTE: For additional information. https://docs.openshift.com/container-platform/latest/authentication/using-rbac.html
{{%- endmacro %}}
