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Current Path: /usr/src/contrib/ipfilter/iplang

usr / src / contrib / ipfilter / iplang /

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📄 BNF(2.89 KB)
📄 Makefile(957 B)
📄 iplang.h(937 B)
📄 iplang.tst(196 B)
📄 iplang_l.l(7.67 KB)
📄 iplang_y.y(34.04 KB)

Editing: BNF

line ::= iface | arp | send | defrouter | ipv4line .

iface ::= ifhdr "{" ifaceopts "}" ";" .
ifhdr ::= "interface" | "iface" .
ifaceopts ::= "ifname" name | "mtu" mtu | "v4addr" ipaddr |
	      "eaddr" eaddr .

send ::= "send" ";" | "send" "{" sendbodyopts "}" ";" .
sendbodyopts ::= sendbody [ sendbodyopts ] .
sendbody ::= "ifname" name | "via" ipaddr .

defrouter ::= "router" ipaddr .

arp ::= "arp" "{" arpbodyopts "}" ";" .
arpbodyopts ::= arpbody [ arpbodyopts ] .
arpbody ::= "v4addr" ipaddr | "eaddr" eaddr .

bodyline ::= ipv4line | tcpline | udpline | icmpline | dataline .

ipv4line ::= "ipv4" "{" ipv4bodyopts "}" ";" .
ipv4bodyopts ::= ipv4body [ ipv4bodyopts ] | bodyline .
ipv4body ::= "proto" protocol | "src" ipaddr | "dst" ipaddr |
	     "off" number | "v" number | "hl" number| "id" number |
	     "ttl" number | "tos" number | "sum" number | "len" number |
	     "opt" "{" ipv4optlist "}" ";" .
ipv4optlist ::= ipv4option [ ipv4optlist ] .
ipv4optlist = "nop" | "rr" | "zsu" | "mtup" | "mtur" | "encode" | "ts" |
	      "tr" | "sec" | "lsrr" | "e-sec" | "cipso" | "satid" |
	      "ssrr" | "addext" | "visa" | "imitd" | "eip" | "finn" |
	      "secclass" ipv4secclass.
ipv4secclass := "unclass" | "confid" | "reserv-1" | "reserv-2" |
		"reserv-3" | "reserv-4" | "secret" | "topsecret" .

tcpline ::= "tcp" "{" tcpbodyopts "}" ";" .
tcpbodyopts ::= tcpbody [ tcpbodyopts ] | bodyline .
tcpbody ::= "sport" port | "dport" port | "seq" number | "ack" number |
	    "off" number | "urp" number | "win" number | "sum" number |
	    "flags" tcpflags | data .

udpline ::= "udp" "{" udpbodyopts "}" ";" .
udpbodyopts ::= udpbody [ udpbodyopts ] | bodyline .
udpbody ::= "sport" port | "dport" port | "len" number | "sum" number |
	    data .

icmpline ::= "icmp" "{" icmpbodyopts "}" ";" .
icmpbodyopts ::= icmpbody [ icmpbodyopts ] | bodyline .
icmpbody ::= "type" icmptype [ "code" icmpcode ] .
icmptype ::= "echorep" | "echorep" "{" echoopts "}" ";" | "unreach" |
	     "unreach" "{" unreachtype "}" ";" | "squench" | "redir" |
	     "redir" "{" redirtype "}" ";" | "echo" "{" echoopts "}" ";" |
	     "echo" | "routerad" | "routersol" | "timex" |
	     "timex" "{" timextype "}" ";" | "paramprob" |
	     "paramprob" "{" parapptype "}" ";" | "timest" | "timestrep" |
	     "inforeq" | "inforep" | "maskreq" | "maskrep" .

data	::= "data" "{" databodyopts "}" ";" .
databodyopts ::= "len" number | "value" string | "file" filename .

icmpechoopts ::= "icmpseq" number | "icmpid" number .

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