The following variables needs to be implemented inside libModSecurity: - PERF_ALL - PERF_COMBINED - PERF_GC - PERF_LOGGING - PERF_PHASE1 - PERF_PHASE2 - PERF_PHASE3 - PERF_PHASE4 - PERF_PHASE5 - PERF_RULES - PERF_SREAD - PERF_SWRITE More information about these variables can be found at ModSecurity reference manual: https://github.com/SpiderLabs/ModSecurity/wiki/Reference-Manual