mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-01 08:01:31 +02:00
05adaa9794
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5622 3c298f89-4303-0410-b956-a3cf2f4a3e73
69 lines
1.7 KiB
Awk
69 lines
1.7 KiB
Awk
# Copyright (C) 2006 OpenWrt.org
|
|
|
|
function portstr(type, str) {
|
|
gsub(/-/, ":", str)
|
|
if (insmod_mport != 1) {
|
|
print "insmod ipt_multiport >&- 2>&-"
|
|
insmod_mport = 1
|
|
}
|
|
if (type == "src") return " -m multiport --sports " str
|
|
else return " -m multiport --dports " str
|
|
}
|
|
|
|
function str2ipt(str) {
|
|
str2data(str)
|
|
_cmd = ""
|
|
if (_l["src"] != "") _cmd = _cmd " -s " _l["src"]
|
|
if (_l["dest"] != "") _cmd = _cmd " -d " _l["dest"]
|
|
if (_l["proto"] != "") {
|
|
_cmd = _cmd " -p " _l["proto"]
|
|
}
|
|
# scripts need to check for proto="" and emit two rules in that case
|
|
if ((_l["proto"] == "") || (_l["proto"] == "tcp") || (_l["proto"] == "udp")) {
|
|
if (_l["sport"] != "") _cmd = _cmd portstr("src", _l["sport"])
|
|
if (_l["dport"] != "") _cmd = _cmd portstr("dest", _l["dport"])
|
|
}
|
|
if (_l["layer7"] != "") {
|
|
if (insmod_l7 != 1) {
|
|
print "insmod ipt_layer7 >&- 2>&-"
|
|
insmod_l7 = 1
|
|
}
|
|
_cmd = _cmd " -m layer7 --l7proto " _l["layer7"]
|
|
}
|
|
return _cmd
|
|
}
|
|
|
|
function str2data(str) {
|
|
delete _l
|
|
_n = split(str, _o, "[\t ]")
|
|
for (_i = 1; _i <= _n; _i++) {
|
|
_n2 = split(_o[_i], _c, "=")
|
|
if (_n2 == 2) _l[_c[1]] = _c[2]
|
|
}
|
|
}
|
|
|
|
function bitcount(c) {
|
|
c=and(rshift(c, 1),0x55555555)+and(c,0x55555555)
|
|
c=and(rshift(c, 2),0x33333333)+and(c,0x33333333)
|
|
c=and(rshift(c, 4),0x0f0f0f0f)+and(c,0x0f0f0f0f)
|
|
c=and(rshift(c, 8),0x00ff00ff)+and(c,0x00ff00ff)
|
|
c=and(rshift(c,16),0x0000ffff)+and(c,0x0000ffff)
|
|
return c
|
|
}
|
|
|
|
function validate_netmask(nm) {
|
|
return and(-nm,compl(nm))
|
|
}
|
|
|
|
function ip2int(ip) {
|
|
for (ret=0,n=split(ip,a,"\."),x=1;x<=n;x++) ret=or(lshift(ret,8),a[x])
|
|
return ret
|
|
}
|
|
|
|
function int2ip(ip,ret,x) {
|
|
ret=and(ip,255)
|
|
ip=rshift(ip,8)
|
|
for(;x<3;ret=and(ip,255)"."ret,ip=rshift(ip,8),x++);
|
|
return ret
|
|
}
|