gandc/zapret2
Template
1
0
Fork 0
mirror of https://github.com/bol-van/zapret2.git synced 2026-03-14 06:13:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

zapret-auto: circular.reqhost parameter

Browse Source
This commit is contained in:
bol-van
2025-12-06 20:25:04 +03:00
parent 9d5435f977
commit 9125cb0205
1 changed files with 28 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

42
lua/zapret-auto.lua
View File

@@ -1,8 +1,19 @@
-- arg: reqhost - require hostname, do not work with ip
function automate_host_record(desync)
local key
if desync.arg.reqhost then
key = desync.track and desync.track.hostname
else
key = host_or_ip(desync)
end
if not key then
DLOG("automate: host record key unavailable")
return nil
end
DLOG("automate: host record key '"..key.."'")
if not autostate then
autostate = {}
end
local key = host_or_ip(desync)
if not autostate[key] then
autostate[key] = {}
end
@@ -68,6 +79,7 @@ end
-- arg: seq=<rseq> - if packet is beyond this relative sequence number treat this connection as successful. default is 64K
-- arg: rst=<rseq> - maximum relative sequence number to treat incoming RST as DPI reset. default is 1
-- arg: time=<sec> - if last failure happened earlier than `maxtime` seconds ago - reset failure counter. default is 60.
-- arg: reqhost - pass with no tampering if hostname is unavailable
-- test case: nfqws2 --qnum 200 --debug --lua-init=@zapret-lib.lua --lua-init=@zapret-auto.lua --in-range=-s1 --lua-desync=circular --lua-desync=argdebug:strategy=1 --lua-desync=argdebug:strategy=2
function circular(ctx, desync)
local function count_strategies(hrec, plan)
@@ -105,34 +117,37 @@ function circular(ctx, desync)
instance_cutoff(ctx)
return
end
if not desync.track then
DLOG_ERR("circular: conntrack is missing but required")
return
end
local rstseq = tonumber(desync.arg.rst) or 1
local maxseq = tonumber(desync.arg.seq) or 0x10000
local fails = tonumber(desync.arg.fails) or 3
local retrans = tonumber(desync.arg.retrans) or 3
local maxtime = tonumber(desync.arg.time) or 60
local hrec = automate_host_record(desync)
local crec = automate_conn_record(desync)
local pos = bitand(desync.track.tcp.seq - desync.track.tcp.seq0,0xFFFFFFFF)
local trigger = false
local once = true
local plan = execution_plan(ctx)
if #plan==0 then
DLOG("circular: need some desync instances or useless")
return
end
local hrec = automate_host_record(desync)
if not hrec then
DLOG("circular: passing with no tampering")
return
end
count_strategies(hrec, plan)
if hrec.ctstrategy==0 then
error("circular: add strategy=N tag argument to each following instance ! N must start from 1 and increment")
end
local rstseq = tonumber(desync.arg.rst) or 1
local maxseq = tonumber(desync.arg.seq) or 0x10000
local fails = tonumber(desync.arg.fails) or 3
local retrans = tonumber(desync.arg.retrans) or 3
local maxtime = tonumber(desync.arg.time) or 60
local crec = automate_conn_record(desync)
local pos = bitand(desync.track.tcp.seq - desync.track.tcp.seq0,0xFFFFFFFF)
local trigger = false
if not hrec.nstrategy then
DLOG("circular: start from strategy 1")
hrec.nstrategy = 1
@@ -147,7 +162,6 @@ function circular(ctx, desync)
end
local verdict = VERDICT_PASS
if not crec.nocheck and hrec.final~=hrec.nstrategy then
if desync.outgoing then
if #desync.dis.payload>0 and (crec.retrans or 0)<retrans then