d4e6a52959
After r343619 ipfw uses own locking for packets flow. PULLUP_LEN() macro is used in ipfw_chk() to make m_pullup(). When m_pullup() fails, it just returns via `goto pullup_failed`. There are two places where PULLUP_LEN() is called with IPFW_PF_RLOCK() held. Add PULLUP_LEN_LOCKED() macro to use in these places to be able release the lock, when m_pullup() fails. Sponsored by: Yandex LLC
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