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zapret-lib: tcp_nop_del

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bol-van
2026-01-16 21:34:18 +03:00
parent 73c10e3f15
commit fe318a42e8
5 changed files with 13 additions and 1 deletions
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8
lua/zapret-lib.lua
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@@ -789,6 +789,7 @@ end
-- tcp_flags_set=<list> - set tcp flags in comma separated list
-- tcp_flags_unset=<list> - unset tcp flags in comma separated list
-- tcp_ts_up - move timestamp tcp option to the top if it's present. this allows linux not to accept badack segments without badseq. this is very strange discovery but it works.
-- tcp_nop_del - delete NOP tcp options to free space in tcp header
-- fool - custom fooling function : fool_func(dis, fooling_options)
function apply_fooling(desync, dis, fooling_options)
@@ -850,6 +851,13 @@ function apply_fooling(desync, dis, fooling_options)
if fooling_options.tcp_flags_set then
dis.tcp.th_flags = bitor(dis.tcp.th_flags, parse_tcp_flags(fooling_options.tcp_flags_set))
end
if fooling_options.tcp_nop_del then
for i=#dis.tcp.options,1,-1 do
if dis.tcp.options[i].kind==TCP_KIND_NOOP then
table.remove(dis.tcp.options,i)
end
end
end
if tonumber(fooling_options.tcp_ts) then
local idx = find_tcp_option(dis.tcp.options,TCP_KIND_TS)
if idx and (dis.tcp.options[idx].data and #dis.tcp.options[idx].data or 0)==8 then