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Add tcp syn packet fingerprinting to redbean

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This change also fixes bugs in enoprotoopt reporting with setsockopt and
getsockopt error returns.
This commit is contained in:
Justine Tunney 2022-07-17 02:40:39 -07:00
parent 866b21a151
commit 4d25f8c3c9
75 changed files with 1551 additions and 115 deletions
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12
tool/net/demo/.init.lua
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@ -20,8 +20,20 @@ db:exec[[
INSERT INTO test (content) VALUES ('Hello Sqlite3');
]]
function OnServerListen(fd, ip, port)
unix.setsockopt(fd, unix.SOL_TCP, unix.TCP_SAVE_SYN, true)
return false
end
function OnClientConnection(ip, port, serverip, serverport)
syn, synerr = unix.getsockopt(GetClientFd(), unix.SOL_TCP, unix.TCP_SAVED_SYN)
end
-- this intercepts all requests if it's defined
function OnHttpRequest()
Log(kLogInfo, "client is running %s and reports %s" % {
finger.GetSynFingerOs(finger.FingerSyn(syn)),
GetHeader('User-Agent')})
if HasParam('magic') then
Write('<p>\r\n')
Write('OnHttpRequest() has intercepted your request<br>\r\n')