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Rectify shadowing of the packet module

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nnposter
2024-08-25 17:06:11 +00:00
parent c661b0af64
commit 5e35bc0952
1 changed files with 11 additions and 11 deletions
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22
nselib/eap.lua
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@@ -17,10 +17,10 @@
-- pcap:pcap_open(iface.device, 512, true, "ether proto 0x888e") -- pcap:pcap_open(iface.device, 512, true, "ether proto 0x888e")
-- ... -- ...
-- local _, _, l2_data, l3_data, _ = pcap:pcap_receive() -- local _, _, l2_data, l3_data, _ = pcap:pcap_receive()
-- local packet = eap.parse(l2_data .. l3_data3) -- local pkt = eap.parse(l2_data .. l3_data3)
-- if packet then -- if pkt then
-- if packet.eap.type == eap.eap_t.IDENTITY and packet.eap.code == eap.code_t.REQUEST then -- if pkt.eap.type == eap.eap_t.IDENTITY and pkt.eap.code == eap.code_t.REQUEST then
-- eap.send_identity_response(iface, packet.eap.id, "anonymous") -- eap.send_identity_response(iface, pkt.eap.id, "anonymous")
-- end -- end
-- end -- end
-- </code> -- </code>
@@ -186,18 +186,18 @@ local make_eap = function (arg)
return v return v
end end
parse = function (packet) parse = function (pkt)
local tb = {} local tb = {}
stdnse.debug2("packet size: 0x%x", #packet ) stdnse.debug2("packet size: 0x%x", #pkt )
-- parsing ethernet header -- parsing ethernet header
tb.mac_src, tb.mac_dst, tb.ether_type = string.unpack(">c6c6I2", packet) tb.mac_src, tb.mac_dst, tb.ether_type = string.unpack(">c6c6I2", pkt)
tb.mac_src_str = stdnse.tohex(tb.mac_src) tb.mac_src_str = stdnse.tohex(tb.mac_src)
tb.mac_dst_str = stdnse.tohex(tb.mac_dst) tb.mac_dst_str = stdnse.tohex(tb.mac_dst)
-- parsing eapol header -- parsing eapol header
tb.version, tb.type, tb.length = string.unpack(">BBI2", packet, ETHER_HEADER_SIZE + 1) tb.version, tb.type, tb.length = string.unpack(">BBI2", pkt, ETHER_HEADER_SIZE + 1)
stdnse.debug1("mac_src: %s, mac_dest: %s, ether_type: 0x%X", stdnse.debug1("mac_src: %s, mac_dest: %s, ether_type: 0x%X",
tb.mac_src_str, tb.mac_dst_str, tb.ether_type) tb.mac_src_str, tb.mac_dst_str, tb.ether_type)
@@ -213,7 +213,7 @@ parse = function (packet)
if tb.length > 0 then if tb.length > 0 then
-- parsing body -- parsing body
tb.eap.code, tb.eap.id, tb.eap.length, tb.eap.type = string.unpack(">BBI2B", packet, tb.eap.code, tb.eap.id, tb.eap.length, tb.eap.type = string.unpack(">BBI2B", pkt,
ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + 1) ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + 1)
stdnse.debug2("code: %s, id: 0x%X, length: 0x%X, type: %s", stdnse.debug2("code: %s, id: 0x%X, length: 0x%X, type: %s",
code_str[tb.eap.code] or "unknown", code_str[tb.eap.code] or "unknown",
@@ -227,13 +227,13 @@ parse = function (packet)
-- parsing payload -- parsing payload
if tb.length > 5 and tb.eap.type == eap_t.IDENTITY then if tb.length > 5 and tb.eap.type == eap_t.IDENTITY then
tb.eap.body.identity = string.unpack("z", packet, tb.eap.body.identity = string.unpack("z", pkt,
ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + EAP_HEADER_SIZE + 1) ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + EAP_HEADER_SIZE + 1)
stdnse.debug1("identity: %s", tb.eap.body.identity ) stdnse.debug1("identity: %s", tb.eap.body.identity )
end end
if tb.length > 5 and tb.eap.type == eap_t.MD5 then if tb.length > 5 and tb.eap.type == eap_t.MD5 then
tb.eap.body.challenge = string.unpack("s1", packet, ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + EAP_HEADER_SIZE + 1) tb.eap.body.challenge = string.unpack("s1", pkt, ETHER_HEADER_SIZE + EAPOL_HEADER_SIZE + EAP_HEADER_SIZE + 1)
end end
return tb return tb