mirror of
https://github.com/bol-van/zapret.git
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blockcheck: update for new strategies. nfqws check order reworked.
This commit is contained in:
bol-van
parent
677feecada
commit
c56e672600
283
blockcheck.sh
283
blockcheck.sh
@ -45,7 +45,6 @@ HTTP_PORT=${HTTP_PORT:-80}
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HTTPS_PORT=${HTTPS_PORT:-443}
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QUIC_PORT=${QUIC_PORT:-443}
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UNBLOCKED_DOM=${UNBLOCKED_DOM:-iana.org}
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[ "$CURL_VERBOSE" = 1 ] && CURL_CMD=1
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HDRTEMP=/tmp/zapret-hdr.txt
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@ -792,7 +791,7 @@ pktws_ipt_prepare()
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# disable PF to avoid interferences
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pf_is_avail && pfctl -qd
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for ip in $3; do
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IPFW_ADD divert $IPFW_DIVERT_PORT $1 from me to $ip $2 proto ip${IPV} out not diverted not sockarg
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IPFW_ADD divert $IPFW_DIVERT_PORT $1 from me to $ip $2 proto ip${IPV} out not diverted
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done
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;;
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opf)
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@ -867,7 +866,7 @@ pktws_ipt_prepare_tcp()
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;;
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ipfw)
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for ip in $2; do
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IPFW_ADD divert $IPFW_DIVERT_PORT tcp from $ip $1 to me proto ip${IPV} tcpflags syn,ack in not diverted not sockarg
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IPFW_ADD divert $IPFW_DIVERT_PORT tcp from $ip $1 to me proto ip${IPV} tcpflags syn,ack in not diverted
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done
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;;
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esac
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@ -994,7 +993,6 @@ ws_curl_test()
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# $2 - test function
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# $3 - domain
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# $4,$5,$6, ... - ws params
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local code ws_start=$1 testf=$2 dom=$3
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shift
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shift
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@ -1088,7 +1086,7 @@ test_has_split()
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}
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test_has_fake()
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{
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contains "$1" fake
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[ "$1" = fake ] || starts_with "$1" fake,
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}
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warn_fool()
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{
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@ -1105,25 +1103,34 @@ pktws_curl_test_update_vary()
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# $4 - desync mode
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# $5,$6,... - strategy
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local testf=$1 sec=$2 domain=$3 desync=$4 zerofake split fake
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local testf=$1 sec=$2 domain=$3 desync=$4 proto zerofake= splits= pos fake ret=1
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shift; shift; shift; shift
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zerofake=http
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[ "$sec" = 0 ] || zerofake=tls
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zerofake="--dpi-desync-fake-$zerofake=0x00000000"
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proto=http
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[ "$sec" = 0 ] || proto=tls
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test_has_fake $desync && zerofake="--dpi-desync-fake-$proto=0x00000000"
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test_has_split $desync && {
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splits="method+2 midsld"
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[ "$sec" = 0 ] || splits="1 midsld 1,midsld"
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}
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for fake in '' $zerofake ; do
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for split in '' '--dpi-desync-split-pos=1' ; do
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pktws_curl_test_update $testf $domain --dpi-desync=$desync "$@" $fake $split && return 0
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# split-pos=1 is meaningful for DPIs searching for 16 03 in TLS. no reason to apply to http
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[ "$sec" = 1 ] || break
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test_has_split $desync || break
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done
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test_has_fake $desync || break
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if [ -n "$splits" ]; then
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for pos in $splits ; do
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pktws_curl_test_update $testf $domain --dpi-desync=$desync "$@" --dpi-desync-split-pos=$pos $fake && {
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[ "$SCANLEVEL" = force ] || return 0
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ret=0
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}
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done
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else
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pktws_curl_test_update $testf $domain --dpi-desync=$desync "$@" $fake && {
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[ "$SCANLEVEL" = force ] || return 0
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ret=0
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}
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fi
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done
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return 1
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return $ret
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}
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pktws_check_domain_http_bypass_()
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@ -1132,7 +1139,10 @@ pktws_check_domain_http_bypass_()
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# $2 - encrypted test : 0 = plain, 1 - encrypted with server reply risk, 2 - encrypted without server reply risk
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# $3 - domain
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local tests='fake' ret ok ttls s f e desync pos fooling frag sec="$2" delta hostcase
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local ok ttls s f f2 e desync pos fooling frag sec="$2" delta splits
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local need_split need_disorder need_fakedsplit need_fakeddisorder need_fake need_wssize
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local splits_http='method+2 midsld method+2,midsld'
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local splits_tls='2 1 sniext+1 host+1 midsld 1,midsld 1,sniext+1,host+1,midsld-2,midsld,midsld+2,endhost-1'
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[ "$sec" = 0 ] && {
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for s in '--hostcase' '--hostspell=hoSt' '--hostnospace' '--domcase'; do
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@ -1140,74 +1150,62 @@ pktws_check_domain_http_bypass_()
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done
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}
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s="--dpi-desync=split2"
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ok=0
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pktws_curl_test_update $1 $3 $s
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ret=$?
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[ "$ret" = 0 ] && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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}
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[ "$ret" != 0 -o "$SCANLEVEL" = force ] && {
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if [ "$sec" = 0 ]; then
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pktws_curl_test_update $1 $3 $s --hostcase && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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}
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for pos in method host; do
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for hostcase in '' '--hostcase'; do
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-http-req=$pos $hostcase && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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}
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done
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done
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else
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for pos in sni sniext; do
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-tls=$pos && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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}
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done
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fi
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for pos in 1 3 4 5 10 50; do
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s="--dpi-desync=split2 --dpi-desync-split-pos=$pos"
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if pktws_curl_test_update $1 $3 $s; then
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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[ "$SCANLEVEL" = force ] || break
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elif [ "$sec" = 0 ]; then
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pktws_curl_test_update $1 $3 $s --hostcase && [ "$SCANLEVEL" = quick ] && return
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fi
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done
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}
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[ "$ok" = 1 -a "$SCANLEVEL" != force ] || tests="$tests split fake,split2 fake,split"
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pktws_curl_test_update $1 $3 --dpi-desync=disorder2
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ret=$?
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[ "$ret" = 0 -a "$SCANLEVEL" = quick ] && return
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[ "$ret" != 0 -o "$SCANLEVEL" = force ] && {
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pktws_curl_test_update $1 $3 --dpi-desync=disorder2 --dpi-desync-split-pos=1
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ret=$?
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[ "$ret" = 0 -a "$SCANLEVEL" = quick ] && return
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}
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[ "$ret" != 0 -o "$SCANLEVEL" = force ] && tests="$tests disorder fake,disorder2 fake,disorder"
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ttls=$(seq -s ' ' $MIN_TTL $MAX_TTL)
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need_wssize=1
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for e in '' '--wssize 1:6'; do
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need_split=
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need_disorder=
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[ -n "$e" ] && {
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pktws_curl_test_update $1 $3 $e && [ "$SCANLEVEL" = quick ] && return
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for desync in split2 disorder2; do
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pktws_curl_test_update_vary $1 $2 $3 $desync $e && [ "$SCANLEVEL" = quick ] && return
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done
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}
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for desync in $tests; do
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for desync in multisplit multidisorder; do
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ok=0
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splits="$splits_http"
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[ "$sec" = 0 ] || splits="$splits_tls"
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for pos in $splits; do
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pktws_curl_test_update $1 $3 --dpi-desync=$desync --dpi-desync-split-pos=$pos $e && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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need_wssize=0
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[ "$SCANLEVEL" = force ] || break
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}
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done
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[ "$ok" = 1 -a "$SCANLEVEL" != force ] || {
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case $desync in
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multisplit)
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need_split=1
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;;
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multidisorder)
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need_disorder=1
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;;
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esac
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}
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done
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need_fakedsplit=1
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need_fakeddisorder=1
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need_fake=1
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for desync in fake ${need_split:+fakedsplit fake,multisplit fake,fakedsplit} ${need_disorder:+fakeddisorder fake,multidisorder fake,fakeddisorder}; do
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[ "$need_fake" = 0 ] && test_has_fake "$desync" && continue
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[ "$need_fakedsplit" = 0 ] && contains "$desync" fakedsplit && continue
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[ "$need_fakeddisorder" = 0 ] && contains "$desync" fakeddisorder && continue
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ok=0
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for ttl in $ttls; do
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pktws_curl_test_update_vary $1 $2 $3 $desync --dpi-desync-ttl=$ttl $e && {
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[ "$SCANLEVEL" = quick ] && return
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ok=1
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need_wssize=0
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break
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}
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done
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# only skip tests if TTL succeeded. do not skip if TTL failed but fooling succeeded
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[ $ok = 1 -a "$SCANLEVEL" != force ] && {
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[ "$desync" = fake ] && need_fake=0
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[ "$desync" = fakedsplit ] && need_fakedsplit=0
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[ "$desync" = fakeddisorder ] && need_fakeddisorder=0
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}
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f=
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[ "$UNAME" = "OpenBSD" ] || f="badsum"
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f="$f badseq datanoack md5sig"
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@ -1216,37 +1214,62 @@ pktws_check_domain_http_bypass_()
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pktws_curl_test_update_vary $1 $2 $3 $desync --dpi-desync-fooling=$fooling $e && {
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warn_fool $fooling
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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}
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done
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done
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[ "$IPV" = 6 ] && {
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f="hopbyhop hopbyhop,split2 hopbyhop,disorder2 destopt destopt,split2 destopt,disorder2"
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[ -n "$IP6_DEFRAG_DISABLE" ] && f="$f ipfrag1 ipfrag1,split2 ipfrag1,disorder2"
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f="hopbyhop ${need_split:+hopbyhop,multisplit} ${need_disorder:+hopbyhop,multidisorder} destopt ${need_split:+destopt,multisplit} ${need_disorder:+destopt,multidisorder}"
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[ -n "$IP6_DEFRAG_DISABLE" ] && f="$f ipfrag1 ${need_split:+ ipfrag1,multisplit} ${need_disorder:+ ipfrag1,multidisorder}"
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for desync in $f; do
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pktws_curl_test_update_vary $1 $2 $3 $desync $e && [ "$SCANLEVEL" = quick ] && return
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pktws_curl_test_update_vary $1 $2 $3 $desync $e && {
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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}
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done
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}
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for desync in split2 disorder2; do
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s="--dpi-desync=$desync"
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[ "$need_split" = 1 ] && {
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f="method+2 midsld method+2,midsld"
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[ "$sec" = 0 ] || f="1 midsld sniext+1 1,midsld"
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for pos in $f; do
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pktws_curl_test_update $1 $3 --dpi-desync=multisplit --dpi-desync-split-pos=$pos --dpi-desync-split-seqovl=1 $e && {
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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}
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done
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[ "$sec" != 0 ] && pktws_curl_test_update $1 $3 --dpi-desync=multisplit --dpi-desync-split-pos=2 --dpi-desync-split-seqovl=336 --dpi-desync-split-seqovl-pattern="$ZAPRET_BASE/files/fake/tls_clienthello_iana_org.bin" $e && [ "$SCANLEVEL" = quick ] && return
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}
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[ "$need_disorder" = 1 ] && {
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if [ "$sec" = 0 ]; then
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for pos in method host; do
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-seqovl=1 --dpi-desync-split-http-req=$pos $e && [ "$SCANLEVEL" = quick ] && return
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for pos in 'method+1 method+2' 'midsld-1 midsld' 'method+1 method+2,midsld'; do
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f="$(extract_arg 1 $pos)"
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f2="$(extract_arg 2 $pos)"
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pktws_curl_test_update $1 $3 --dpi-desync=multidisorder --dpi-desync-split-pos=$f2 --dpi-desync-split-seqovl=$f $e && {
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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}
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done
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else
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for pos in sni sniext; do
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-seqovl=1 --dpi-desync-split-tls=$pos $e && [ "$SCANLEVEL" = quick ] && return
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for pos in '1 2' 'sniext sniext+1' 'midsld-1 midsld' '1 2,midsld'; do
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f=$(extract_arg 1 $pos)
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f2=$(extract_arg 2 $pos)
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pktws_curl_test_update $1 $3 --dpi-desync=multidisorder --dpi-desync-split-pos=$f2 --dpi-desync-split-seqovl=$f $e && {
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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}
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done
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fi
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for pos in 2 3 4 5 10 50; do
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-seqovl=$(($pos - 1)) --dpi-desync-split-pos=$pos $e && [ "$SCANLEVEL" = quick ] && return
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done
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[ "$sec" != 0 -a $desync = split2 ] && {
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pktws_curl_test_update $1 $3 $s --dpi-desync-split-seqovl=336 --dpi-desync-split-seqovl-pattern="$ZAPRET_BASE/files/fake/tls_clienthello_iana_org.bin" $e && [ "$SCANLEVEL" = quick ] && return
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}
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done
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}
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for desync in $tests; do
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need_fakedsplit=1
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need_fakeddisorder=1
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need_fake=1
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for desync in fake ${need_split:+fakedsplit fake,multisplit fake,fakedsplit} ${need_disorder:+fakeddisorder fake,multidisorder fake,fakeddisorder}; do
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[ "$need_fake" = 0 ] && test_has_fake "$desync" && continue
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[ "$need_fakedsplit" = 0 ] && contains "$desync" fakedsplit && continue
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[ "$need_fakeddisorder" = 0 ] && contains "$desync" fakeddisorder && continue
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ok=0
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for delta in 1 2 3 4 5; do
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pktws_curl_test_update_vary $1 $2 $3 $desync --dpi-desync-ttl=1 --dpi-desync-autottl=$delta $e && ok=1
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@ -1256,18 +1279,25 @@ pktws_check_domain_http_bypass_()
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echo "WARNING ! although autottl worked it requires testing on multiple domains to find out reliable delta"
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echo "WARNING ! if a reliable delta cannot be found it's a good idea not to use autottl"
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[ "$SCANLEVEL" = quick ] && return
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need_wssize=0
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[ "$SCANLEVEL" = force ] || {
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[ "$desync" = fake ] && need_fake=0
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[ "$desync" = fakedsplit ] && need_fakedsplit=0
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[ "$desync" = fakeddisorder ] && need_fakeddisorder=0
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}
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}
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done
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s="http_iana_org.bin"
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[ "$sec" = 0 ] || s="tls_clienthello_iana_org.bin"
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for desync in syndata syndata,split2 syndata,disorder2 ; do
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for desync in syndata ${need_split:+syndata,multisplit} ${need_disorder:+syndata,multidisorder} ; do
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pktws_curl_test_update_vary $1 $2 $3 $desync $e && [ "$SCANLEVEL" = quick ] && return
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pktws_curl_test_update_vary $1 $2 $3 $desync --dpi-desync-fake-syndata="$ZAPRET_BASE/files/fake/$s" $e && [ "$SCANLEVEL" = quick ] && return
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done
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# do not do wssize test for http and TLS 1.3. it's useless
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[ "$sec" = 1 ] || break
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[ "$SCANLEVEL" = force -o "$need_wssize" = 1 ] || break
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done
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}
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pktws_check_domain_http_bypass()
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@ -1338,15 +1368,28 @@ tpws_check_domain_http_bypass_()
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# $2 - encrypted test : 0 = plain, 1 - encrypted with server reply risk, 2 - encrypted without server reply risk
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# $3 - domain
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local s mss s2 s3 pos sec="$2"
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local s mss s2 s3 oobdis pos sec="$2"
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local splits_tls='2 1 sniext+1 host+1 midsld 1,midsld 1,sniext+1,host+1,midsld,endhost-1'
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local splits_http='method+2 midsld method+2,midsld'
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# simulteneous oob and disorder works properly only in linux. other systems retransmit oob byte without URG tcp flag and poison tcp stream.
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[ "$UNAME" = Linux ] && oobdis='--oob --disorder'
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if [ "$sec" = 0 ]; then
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for s in '--hostcase' '--hostspell=hoSt' '--hostdot' '--hosttab' '--hostnospace' '--domcase' \
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'--hostpad=1024' '--hostpad=2048' '--hostpad=4096' '--hostpad=8192' '--hostpad=16384' ; do
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for s in '--hostcase' '--hostspell=hoSt' '--hostdot' '--hosttab' '--hostnospace' '--domcase' ; do
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tpws_curl_test_update $1 $3 $s && [ "$SCANLEVEL" = quick ] && return
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done
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for s2 in '' '--oob' '--disorder' '--oob --disorder'; do
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for s in '--split-http-req=method' '--split-http-req=method --hostcase' '--split-http-req=host' '--split-http-req=host --hostcase' ; do
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tpws_curl_test_update $1 $3 $s $s2 && [ "$SCANLEVEL" = quick ] && return
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for s in 1024 2048 4096 8192 16384 ; do
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tpws_curl_test_update $1 $3 --hostpad=$s && [ "$SCANLEVEL" != force ] && {
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[ "$SCANLEVEL" = quick ] && return
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break
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}
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done
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for s2 in '' '--hostcase' '--oob' '--disorder' ${oobdis:+"$oobdis"}; do
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for s in $splits_http ; do
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tpws_curl_test_update $1 $3 --split-pos=$s $s2 && [ "$SCANLEVEL" != force ] && {
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[ "$SCANLEVEL" = quick ] && return
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break
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}
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done
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done
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for s in '--methodspace' '--unixeol' '--methodeol'; do
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@ -1355,30 +1398,21 @@ tpws_check_domain_http_bypass_()
|
||||
else
|
||||
for mss in '' 88; do
|
||||
s3=${mss:+--mss=$mss}
|
||||
for s2 in '' '--oob' '--disorder' '--oob --disorder'; do
|
||||
for pos in sni sniext; do
|
||||
s="--split-tls=$pos"
|
||||
tpws_curl_test_update $1 $3 $s $s2 $s3 && warn_mss $s3 && [ "$SCANLEVEL" != force ] && {
|
||||
[ "$SCANLEVEL" = quick ] && return
|
||||
break
|
||||
}
|
||||
done
|
||||
for pos in 1 2 3 4 5 10 50; do
|
||||
s="--split-pos=$pos"
|
||||
tpws_curl_test_update $1 $3 $s $s2 $s3 && warn_mss $s3 && [ "$SCANLEVEL" != force ] && {
|
||||
for s2 in '' '--oob' '--disorder' ${oobdis:+"$oobdis"}; do
|
||||
for pos in $splits_tls; do
|
||||
tpws_curl_test_update $1 $3 --split-pos=$pos $s2 $s3 && warn_mss $s3 && [ "$SCANLEVEL" != force ] && {
|
||||
[ "$SCANLEVEL" = quick ] && return
|
||||
break
|
||||
}
|
||||
done
|
||||
done
|
||||
for s2 in '--tlsrec=sni' '--tlsrec=sni --split-tls=sni' '--tlsrec=sni --split-tls=sni --oob' \
|
||||
'--tlsrec=sni --split-tls=sni --disorder' '--tlsrec=sni --split-tls=sni --oob --disorder' \
|
||||
'--tlsrec=sni --split-pos=1' '--tlsrec=sni --split-pos=1 --oob' '--tlsrec=sni --split-pos=1 --disorder' \
|
||||
'--tlsrec=sni --split-pos=1 --oob --disorder'; do
|
||||
tpws_curl_test_update $1 $3 $s2 $s3 && warn_mss $s3 && [ "$SCANLEVEL" != force ] && {
|
||||
[ "$SCANLEVEL" = quick ] && return
|
||||
break
|
||||
}
|
||||
for s in '' '--oob' '--disorder' ${oobdis:+"$oobdis"}; do
|
||||
for s2 in '--tlsrec=midsld' '--tlsrec=sniext+1 --split-pos=midsld' '--tlsrec=sniext+1 --split-pos=1,midsld' ; do
|
||||
tpws_curl_test_update $1 $3 $s2 $s $s3 && warn_mss $s3 && [ "$SCANLEVEL" != force ] && {
|
||||
[ "$SCANLEVEL" = quick ] && return
|
||||
break
|
||||
}
|
||||
done
|
||||
done
|
||||
# only linux supports mss
|
||||
[ "$UNAME" = Linux -a "$sec" = 1 ] || break
|
||||
@ -1682,17 +1716,6 @@ ask_params()
|
||||
echo "installed curl version does not support http3 QUIC. tests disabled."
|
||||
fi
|
||||
|
||||
IGNORE_CA=0
|
||||
CURL_OPT=
|
||||
[ $ENABLE_HTTPS_TLS13 = 1 -o $ENABLE_HTTPS_TLS12 = 1 ] && {
|
||||
echo
|
||||
echo "on limited systems like openwrt CA certificates might not be installed to preserve space"
|
||||
echo "in such a case curl cannot verify server certificate and you should either install ca-bundle or disable verification"
|
||||
echo "however disabling verification will break https check if ISP does MitM attack and substitutes server certificate"
|
||||
ask_yes_no_var IGNORE_CA "do not verify server certificate"
|
||||
[ "$IGNORE_CA" = 1 ] && CURL_OPT=-k
|
||||
}
|
||||
|
||||
echo
|
||||
echo "sometimes ISPs use multiple DPIs or load balancing. bypass strategies may work unstable."
|
||||
printf "how many times to repeat each test (default: 1) : "
|
||||
|
||||
@ -60,11 +60,22 @@ starts_with()
|
||||
esac
|
||||
return 1
|
||||
}
|
||||
extract_arg()
|
||||
{
|
||||
# $1 - arg number
|
||||
# $2,$3,... - args
|
||||
local n=$1
|
||||
while [ -n "$1" ]; do
|
||||
shift
|
||||
[ $n -eq 1 ] && { echo "$1"; return 0; }
|
||||
n=$(($n-1))
|
||||
done
|
||||
return 1
|
||||
}
|
||||
find_str_in_list()
|
||||
{
|
||||
# $1 - string
|
||||
# $2 - space separated values
|
||||
|
||||
local v
|
||||
[ -n "$1" ] && {
|
||||
for v in $2; do
|
||||
|
||||
@ -221,7 +221,7 @@ check_system()
|
||||
else
|
||||
echo system is not either systemd, openrc or openwrt based
|
||||
echo easy installer can set up config settings but can\'t configure auto start
|
||||
echo you have to do it manually. check readme.txt for manual setup info.
|
||||
echo you have to do it manually. check readme.md for manual setup info.
|
||||
if [ -n "$1" ] || ask_yes_no N "do you want to continue"; then
|
||||
SYSTEM=linux
|
||||
else
|
||||
@ -232,7 +232,7 @@ check_system()
|
||||
elif [ "$UNAME" = "Darwin" ]; then
|
||||
SYSTEM=macos
|
||||
else
|
||||
echo easy installer only supports Linux and MacOS. check readme.txt for supported systems and manual setup info.
|
||||
echo easy installer only supports Linux and MacOS. check readme.md for supported systems and manual setup info.
|
||||
exitp 5
|
||||
fi
|
||||
echo system is based on $SYSTEM
|
||||
|
||||
Loading…
Reference in New Issue
Block a user