diff options
| -rw-r--r-- | modules/luci-base/luasrc/sys/iptparser.lua | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/modules/luci-base/luasrc/sys/iptparser.lua b/modules/luci-base/luasrc/sys/iptparser.lua index a9dbc30826..7ff665e7af 100644 --- a/modules/luci-base/luasrc/sys/iptparser.lua +++ b/modules/luci-base/luasrc/sys/iptparser.lua @@ -31,29 +31,43 @@ function IptParser.__init__( self, family ) self._family = (tonumber(family) == 6) and 6 or 4 self._rules = { } self._chains = { } + self._tables = { } + + local t = self._tables + local s = self:_supported_tables(self._family) + + if s.filter then t[#t+1] = "filter" end + if s.nat then t[#t+1] = "nat" end + if s.mangle then t[#t+1] = "mangle" end + if s.raw then t[#t+1] = "raw" end if self._family == 4 then self._nulladdr = "0.0.0.0/0" - self._tables = { "filter", "nat", "mangle", "raw" } self._command = "iptables -t %s --line-numbers -nxvL" else self._nulladdr = "::/0" - self._tables = { "filter", "mangle", "raw" } - local ok, lines = pcall(io.lines, "/proc/net/ip6_tables_names") - if ok and lines then - local line - for line in lines do - if line == "nat" then - self._tables = { "filter", "nat", "mangle", "raw" } - end - end - end self._command = "ip6tables -t %s --line-numbers -nxvL" end self:_parse_rules() end +function IptParser._supported_tables( self, family ) + local tables = { } + local ok, lines = pcall(io.lines, + (family == 6) and "/proc/net/ip6_tables_names" + or "/proc/net/ip_tables_names") + + if ok and lines then + local line + for line in lines do + tables[line] = true + end + end + + return tables +end + -- search criteria as only argument. If args is nil or an empty table then all -- rules will be returned. -- |