template_ANSIBLE_audit_rules_path_syscall

# platform = multi_platform_rhel,multi_platform_fedora,multi_platform_ol,multi_platform_rhv
# reboot = true
# strategy = restrict
# complexity = low
# disruption = low

#
# What architecture are we on?
#
- name: Set architecture for audit {{{ SYSCALL }}} tasks
  set_fact:
    audit_arch: "b{{ ansible_architecture | regex_replace('.*(\\d\\d$)','\\1') }}"

#
# Inserts/replaces the rule in /etc/audit/rules.d
#
- name: Search /etc/audit/rules.d for other DAC audit rules
  find:
    paths: "/etc/audit/rules.d"
    recurse: no
    contains: ".*{{{ SYSCALL }}}(,[\\S]+)?[\\s]+-F[\\s]+{{{ POS }}}&03[\\s]+-F[\\s]+path={{{ PATH }}}.*"
    patterns: "*.rules"
  register: find_{{{ SYSCALL }}}

- name: If existing DAC ruleset not found, use /etc/audit/rules.d/modify.rules as the recipient for the rule
  set_fact:
    all_files:
      - /etc/audit/rules.d/modify.rules
  when: find_{{{ SYSCALL }}}.matched is defined and find_{{{ SYSCALL }}}.matched == 0

- name: Use matched file as the recipient for the rule
  set_fact:
    all_files:
      - "{{ find_{{{ SYSCALL }}}.files | map(attribute='path') | list | first }}"
  when: find_{{{ SYSCALL }}}.matched is defined and find_{{{ SYSCALL }}}.matched > 0

- name: Inserts/replaces the {{{ SYSCALL }}} rule in rules.d when on x86
  lineinfile:
    path: "{{ all_files[0] }}"
    line: "{{ item }}"
    create: yes
    regexp: "-a always,exit -F arch=b32 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=[\\S]+"
  with_items:
    - "-a always,exit -F arch=b32 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=modify"

- name: Inserts/replaces the {{{ SYSCALL }}} rule in rules.d when on x86_64
  lineinfile:
    path: "{{ all_files[0] }}"
    line: "{{ item }}"
    create: yes
    regexp: "-a always,exit -F arch=b64 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=[\\S]+"
  with_items:
    - "-a always,exit -F arch=b64 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=modify"
  when: audit_arch is defined and audit_arch == 'b64'
#   
# Inserts/replaces the rule in /etc/audit/audit.rules
#
- name: Inserts/replaces the {{{ SYSCALL }}} rule in /etc/audit/audit.rules when on x86
  lineinfile:
    line: "{{ item }}"
    state: present
    dest: /etc/audit/audit.rules
    create: yes
    regexp: "-a always,exit -F arch=b32 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=[\\S]+"
  with_items:
    - "-a always,exit -F arch=b32 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=modify"

- name: Inserts/replaces the {{{ SYSCALL }}} rule in audit.rules when on x86_64
  lineinfile:
    line: "{{ item }}"
    state: present
    dest: /etc/audit/audit.rules
    create: yes
    regexp: "-a always,exit -F arch=b64 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=[\\S]+"
  with_items:
    - "-a always,exit -F arch=b64 -S {{{ SYSCALL }}} -F {{{ POS }}}&03 -F path={{{ PATH }}} -F auid>={{{ auid }}} -F auid!=unset -F key=modify"
  when: audit_arch is defined and audit_arch == 'b64'