• Jussi Laakkonen's avatar
    [connman] Implement firewall failsafe mechanism. Contributes to JB#43998 · 328e19f0
    Jussi Laakkonen authored
    This commit adds a failsafe mechanism to set policies of all chains to
    ACCEPT in case the setup of dynamic rules fails due to iptables error.
    It will cleanup and initialize iptables.c before setting the policies.
    
    Also added a pre-cleanup for firewall. It sets the policies to defaults
    before the iptables content is saved. This would prevent network
    blocking in case of downgrading to version where the rules are not set.
    The saved filter.v4 table then has not got DROP as default INPUT chain
    policy.
    328e19f0
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