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Added use of local variables.

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Used flow.getInfo() and srv.ip instead flow.getServerKey().
Now the for breaks when a match is found.
This commit is contained in:
Daniele Zulberti 2020-10-11 18:09:47 +02:00
parent 735073f832
commit 3b8ee0e9f0
3 changed files with 39 additions and 42 deletions
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15
scripts/plugins/alerts/security/unexpected_dhcp/user_scripts/flow/unexpected_dhcp.lua
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@ -41,16 +41,15 @@ local script = {
function script.hooks.protocolDetected(now, conf)
if flow.isServerUnicast() then
if(table.len(conf.items) > 0) then
ok = 0
server_ip = flow.getServerKey()
-- the string format returned by flow.geServerKey() is "x.x.x.x@0", :sub(1, -3) deletes "@0"
server_ip = server_ip:sub(1, -3)
local ok = 0
local flow_info = flow.getInfo()
local server_ip = flow_info["srv.ip"]
for _, dns_ip in pairs(conf.items) do
if server_ip == dns_ip then
ok = 1
end
if server_ip == dns_ip then
ok = 1
break
end
end
if ok == 0 then