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https://github.com/bol-van/zapret.git
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blockcheck: use socks mode for tpws tests
This commit is contained in:
bol-van
parent
2f9c69b33f
commit
44f9878655
145
blockcheck.sh
145
blockcheck.sh
@ -12,7 +12,7 @@ ZAPRET_BASE="$EXEDIR"
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. "$ZAPRET_BASE/common/virt.sh"
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[ -n "$QNUM" ] || QNUM=59780
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[ -n "$TPPORT" ] || TPPORT=993
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[ -n "$SOCKS_PORT" ] || SOCKS_PORT=1993
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[ -n "$TPWS_UID" ] || TPWS_UID=1
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[ -n "$TPWS_GID" ] || TPWS_GID=3003
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[ -n "$NFQWS" ] || NFQWS="$ZAPRET_BASE/nfq/nfqws"
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@ -41,7 +41,7 @@ DNSCHECK_DIGS=/tmp/digs.txt
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unset PF_STATUS
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PF_RULES_SAVE=/tmp/pf-zapret-save.conf
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CURL=curl
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unset ALL_PROXY
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killwait()
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{
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@ -123,26 +123,6 @@ opf_prepare_dvtws()
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opf_dvtws_anchor $1 | pfctl -qf -
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pfctl -qe
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}
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mpf_tpws_anchor()
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{
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# $1 - port
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case "$IPV" in
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4)
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echo "rdr pass on $LO_IFACE inet proto tcp from \!127.0.0.0/8 to any port $1 -> $LINKLOCAL port $TPPORT"
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echo "pass out route-to ($LO_IFACE $LINKLOCAL) inet proto tcp from any to any port $1 user { >root }"
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;;
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6)
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echo "rdr pass on $LO_IFACE inet6 proto tcp from \!::1 to any port $1 -> $LINKLOCAL port $TPPORT"
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echo "pass out route-to ($LO_IFACE $LINKLOCAL) inet6 proto tcp from any to any port $1 user { >root }"
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;;
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esac
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}
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mpf_prepare_tpws()
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{
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# $1 - port
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mpf_tpws_anchor $1 | pfctl -qf -
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pfctl -qe
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}
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cleanup()
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{
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@ -197,6 +177,13 @@ nft_has_nfq()
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return $res
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}
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mdig_resolve()
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{
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# $1 - ip version 4/6
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# $2 - hostname
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echo "$2" | "$MDIG" --family=$1 | head -n 1
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}
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check_system()
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{
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echo \* checking system
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@ -234,10 +221,6 @@ check_system()
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PKTWS="$DVTWS"
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PKTWSD=dvtws
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FWTYPE=mpf
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# will not redirect traffic for root
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CURL="sudo -u nobody curl"
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# /dev/pf requires root. hardcoded in kernel
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TPWS_UID=0
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LO_IFACE=lo0
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;;
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*)
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@ -308,11 +291,6 @@ check_prerequisites()
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echo pf is not available
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exitp 6
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}
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# I dont know how to redirect traffic originating from the host itself
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# even with route-to trick DIOCNATLOOK fails, thus making tpws unusable
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# this trick works fine on MacOS but doesn't work on FreeBSD and OpenBSD
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# socks version is also not a solution because I can't control ip version of the resolved domain
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[ "$UNAME" = "OpenBSD" ] && SKIP_TPWS=1
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# no divert sockets in MacOS
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[ "$UNAME" = "Darwin" ] && SKIP_PKTWS=1
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pf_save
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@ -393,6 +371,12 @@ curl_supports_tlsmax()
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[ $? != 2 ]
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}
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curl_supports_connect_to()
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{
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curl --connect-to 127.0.0.1:: -o /dev/null http://127.0.0.1:65535 2>/dev/null
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[ "$?" != 2 ]
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}
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hdrfile_http_code()
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{
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# $1 - hdr file
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@ -405,12 +389,34 @@ hdrfile_location()
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# some DPIs return CRLF line ending
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tr -d '\015' <"$1" | sed -nre 's/^[Ll][Oo][Cc][Aa][Tt][Ii][Oo][Nn]:[ ]*([^ ]*)[ ]*$/\1/p'
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}
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curl_connect_to()
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{
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# $1 - ip version : 4/6
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# $2 - domain name
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local ip=$(mdig_resolve $1 $2)
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[ -n "$ip" ] && echo "--connect-to $2::[$ip]"
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}
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curl_with_dig()
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{
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# $1 - ip version : 4/6
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# $2 - domain name
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# $3+ - curl params
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local connect_to=$(curl_connect_to $1 $2)
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[ -n "$connect_to" ] || {
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echo "could not resolve ipv$1 $2"
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return 6
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}
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shift ; shift
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ALL_PROXY="$ALL_PROXY" curl $connect_to "$@"
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}
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curl_test_http()
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{
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# $1 - ip version : 4/6
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# $2 - domain name
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local code loc
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$CURL -${1}SsD "$HDRTEMP" --max-time $CURL_MAX_TIME $CURL_OPT "http://$2" -o /dev/null 2>&1 || {
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curl_with_dig $1 $2 -SsD "$HDRTEMP" --max-time $CURL_MAX_TIME $CURL_OPT "http://$2" -o /dev/null 2>&1 || {
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code=$?
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rm -f "$HDRTEMP"
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return $code
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@ -439,7 +445,7 @@ curl_test_https_tls12()
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# $2 - domain name
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# do not use tls 1.3 to make sure server certificate is not encrypted
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$CURL -${1}ISs -A "$USER_AGENT" --max-time $CURL_MAX_TIME $CURL_OPT --tlsv1.2 $TLSMAX12 "https://$2" -o /dev/null 2>&1
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curl_with_dig $1 $2 -${1}ISs -A "$USER_AGENT" --max-time $CURL_MAX_TIME $CURL_OPT --tlsv1.2 $TLSMAX12 "https://$2" -o /dev/null 2>&1
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}
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curl_test_https_tls13()
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{
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@ -447,7 +453,7 @@ curl_test_https_tls13()
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# $2 - domain name
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# force TLS1.3 mode
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$CURL -${1}ISs -A "$USER_AGENT" --max-time $CURL_MAX_TIME $CURL_OPT --tlsv1.3 $TLSMAX13 "https://$2" -o /dev/null 2>&1
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curl_with_dig $1 $2 -${1}ISs -A "$USER_AGENT" --max-time $CURL_MAX_TIME $CURL_OPT --tlsv1.3 $TLSMAX13 "https://$2" -o /dev/null 2>&1
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}
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pktws_ipt_prepare()
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@ -485,7 +491,7 @@ pktws_ipt_prepare()
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nft "add rule inet $NFT_TABLE postnat meta nfproto ipv${IPV} tcp dport $1 mark and 0x40000000 != 0x40000000 queue num $QNUM"
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# for strategies with incoming packets involved (autottl)
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nft "add chain inet $NFT_TABLE prenat { type filter hook prerouting priority -102; }"
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nft "add rule inet $NFT_TABLE prenat meta nfproto ipv${IPV} tcp sport $1 ct original packets 1-1 queue num $QNUM"
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nft "add rule inet $NFT_TABLE prenat meta nfproto ipv${IPV} tcp sport $1 ct original packets 1 queue num $QNUM"
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# enable everything generated by nfqws (works only in OUTPUT, not in FORWARD)
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nft "add chain inet $NFT_TABLE predefrag { type filter hook output priority -402; }"
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nft "add rule inet $NFT_TABLE predefrag meta nfproto ipv${IPV} mark and $DESYNC_MARK !=0 notrack"
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@ -529,45 +535,6 @@ pktws_ipt_unprepare()
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;;
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esac
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}
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tpws_ipt_prepare()
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{
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# $1 - port
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case "$FWTYPE" in
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iptables)
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IPT OUTPUT -t nat -p tcp --dport $1 -m owner ! --uid-owner $TPWS_UID -j DNAT --to $LOCALHOST_IPT:$TPPORT
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;;
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nftables)
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nft add table inet $NFT_TABLE
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# -101 = pre dstnat
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nft "add chain inet $NFT_TABLE output { type nat hook output priority -102; }"
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nft "add rule inet $NFT_TABLE output tcp dport $1 skuid != $TPWS_UID dnat ip${IPVV} to $LOCALHOST_IPT:$TPPORT"
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;;
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ipfw)
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IPFW_ADD fwd $LOCALHOST,$TPPORT tcp from me to any $1 proto ip${IPV} not uid $TPWS_UID
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;;
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mpf)
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mpf_prepare_tpws $1
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;;
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esac
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}
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tpws_ipt_unprepare()
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{
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# $1 - port
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case "$FWTYPE" in
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iptables)
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IPT_DEL OUTPUT -t nat -p tcp --dport $1 -m owner ! --uid-owner $TPWS_UID -j DNAT --to $LOCALHOST_IPT:$TPPORT
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;;
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nftables)
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nft delete table inet $NFT_TABLE 2>/dev/null
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;;
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ipfw)
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IPFW_DEL
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;;
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mpf)
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pf_restore
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;;
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esac
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}
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pktws_start()
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{
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case "$UNAME" in
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@ -584,7 +551,7 @@ pktws_start()
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}
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tpws_start()
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{
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"$TPWS" --uid $TPWS_UID:$TPWS_GID --bind-addr=$LINKLOCAL%$LO_IFACE --port=$TPPORT "$@" >/dev/null &
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"$TPWS" --uid $TPWS_UID:$TPWS_GID --socks --bind-addr=127.0.0.1 --port=$SOCKS_PORT "$@" >/dev/null &
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PID=$!
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# give some time to initialize
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minsleep
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@ -643,6 +610,7 @@ tpws_curl_test()
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# $2 - domain
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# $3,$4,$5, ... - tpws params
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echo - checking tpws $3 $4 $5 $6 $7 $8 $9
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local ALL_PROXY="socks5://127.0.0.1:$SOCKS_PORT"
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ws_curl_test tpws_start "$@"
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}
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pktws_curl_test()
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@ -862,7 +830,6 @@ check_domain()
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# in case was interrupted before
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pktws_ipt_unprepare $2
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tpws_ipt_unprepare $2
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ws_kill
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echo "- checking without DPI bypass"
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@ -879,17 +846,8 @@ check_domain()
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done
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echo
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if [ "$SUBSYS" = "pfSense" ] ; then
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echo "tpws tests are not possible on pfSense"
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report_append "ipv${IPV} $4 $1 : automated tpws tests are not possible on pfSense. check docs/bsd.txt"
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elif [ "$SKIP_TPWS" != 1 ]; then
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echo preparing tpws redirection
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tpws_ipt_prepare $2
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if [ "$SKIP_TPWS" != 1 ]; then
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tpws_check_domain_bypass $1 $3 $4
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echo clearing tpws redirection
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tpws_ipt_unprepare $2
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fi
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echo
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@ -925,16 +883,11 @@ configure_ip_version()
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if [ "$IPV" = 6 ]; then
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LOCALHOST=::1
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LOCALHOST_IPT=[${LOCALHOST}]
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LINKLOCAL=$LOCALHOST
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[ "$UNAME" = Darwin ] && LINKLOCAL=fe80::1
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LINKLOCAL_IPT=[${LINKLOCAL}]
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IPVV=6
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else
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IPTABLES=iptables
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LOCALHOST=127.0.0.1
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LOCALHOST_IPT=$LOCALHOST
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LINKLOCAL=$LOCALHOST
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LINKLOCAL_IPT=$LINKLOCAL
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IPVV=
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fi
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IPTABLES=ip${IPVV}tables
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@ -1008,6 +961,14 @@ ask_params()
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echo NOTE ! this test should be run with zapret or any other bypass software disabled, without VPN
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echo
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curl_supports_connect_to || {
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echo "installed curl does not support --connect-to option. pls install at least curl 7.49"
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echo "current curl version:"
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curl --version
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exitp 1
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}
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echo "specify domain(s) to test. multiple domains are space separated."
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printf "domain(s) (default: $DOMAINS) : "
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local dom
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@ -1201,8 +1162,6 @@ unprepare_all()
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# make sure we are not in a middle state that impacts connectivity
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rm -f "$HDRTEMP"
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[ -n "$IPV" ] && {
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tpws_ipt_unprepare 80
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tpws_ipt_unprepare 443
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pktws_ipt_unprepare 80
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pktws_ipt_unprepare 443
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}
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