- local connt = {}
- if fs.access("/proc/net/nf_conntrack", "r") then
- for line in io.lines("/proc/net/nf_conntrack") do
- line = line:match "^(.-( [^ =]+=).-)%2"
- local entry, flags = _parse_mixed_record(line, " +")
- if flags[6] ~= "TIME_WAIT" then
- entry.layer3 = flags[1]
- entry.layer4 = flags[3]
- for i=1, #entry do
- entry[i] = nil
- end
-
- if callback then
- callback(entry)
- else
- connt[#connt+1] = entry
- end
- end
- end
- elseif fs.access("/proc/net/ip_conntrack", "r") then
- for line in io.lines("/proc/net/ip_conntrack") do
- line = line:match "^(.-( [^ =]+=).-)%2"
- local entry, flags = _parse_mixed_record(line, " +")
- if flags[4] ~= "TIME_WAIT" then
- entry.layer3 = "ipv4"
- entry.layer4 = flags[1]
- for i=1, #entry do
- entry[i] = nil
- end
-
- if callback then
- callback(entry)
- else
- connt[#connt+1] = entry
- end
- end
- end
- else
+ local ok, nfct = pcall(io.lines, "/proc/net/nf_conntrack")
+ if not ok or not nfct then