From e134dc4171b051d0f98c7151ef32a347bc4f87e2 Mon Sep 17 00:00:00 2001 From: Christian Breunig Date: Thu, 7 Dec 2023 21:30:57 +0100 Subject: login: T4943: use pam-auth-update to enable/disable Google authenticator The initial version always enabled Google authenticator (2FA/MFA) support by hardcoding the PAM module for sshd and login. This change only enables the PAM module on demand if any use has 2FA/MFA configured. Enabling the module is done system wide via pam-auth-update by using a predefined template. Can be tested using: set system login user vyos authentication plaintext-password vyos set system login user vyos authentication otp key 'QY735IG5HDHBFHS5W7Y2A4EM274SMT3O' See https://docs.vyos.io/en/latest/configuration/system/login.html for additional details. --- src/conf_mode/system-login.py | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'src/conf_mode') diff --git a/src/conf_mode/system-login.py b/src/conf_mode/system-login.py index 87a269499..cd85a5066 100755 --- a/src/conf_mode/system-login.py +++ b/src/conf_mode/system-login.py @@ -306,6 +306,7 @@ def generate(login): def apply(login): + enable_otp = False if 'user' in login: for user, user_config in login['user'].items(): # make new user using vyatta shell and make home directory (-m), @@ -350,6 +351,7 @@ def apply(login): # Generate 2FA/MFA One-Time-Pad configuration if dict_search('authentication.otp.key', user_config): + enable_otp = True render(f'{home_dir}/.google_authenticator', 'login/pam_otp_ga.conf.j2', user_config, permission=0o400, user=user, group='users') else: @@ -398,6 +400,11 @@ def apply(login): pam_profile = 'tacplus-optional' cmd(f'pam-auth-update --enable {pam_profile}') + # Enable/disable Google authenticator + cmd('pam-auth-update --disable mfa-google-authenticator') + if enable_otp: + cmd(f'pam-auth-update --enable mfa-google-authenticator') + return None -- cgit v1.2.3