mirror of
https://github.com/bol-van/zapret.git
synced 2024-11-15 02:58:34 +05:00
blockcheck: restrict fooling only to domain's IPs
This commit is contained in:
bol-van
parent
8446470de3
commit
6e8dbb045a
129
blockcheck.sh
129
blockcheck.sh
@ -58,6 +58,8 @@ DNSCHECK_DIG1=/tmp/dig1.txt
|
||||
DNSCHECK_DIG2=/tmp/dig2.txt
|
||||
DNSCHECK_DIGS=/tmp/digs.txt
|
||||
|
||||
IPSET_FILE=/tmp/blockcheck_ipset.txt
|
||||
|
||||
unset PF_STATUS
|
||||
PF_RULES_SAVE=/tmp/pf-zapret-save.conf
|
||||
|
||||
@ -130,19 +132,22 @@ opf_dvtws_anchor()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
local family=inet
|
||||
# $3 - ip list
|
||||
local iplist family=inet
|
||||
[ "$IPV" = 6 ] && family=inet6
|
||||
make_comma_list iplist "$3"
|
||||
echo "set reassemble no"
|
||||
[ "$1" = tcp ] && echo "pass in quick $family proto $1 from port $2 flags SA/SA divert-packet port $IPFW_DIVERT_PORT no state"
|
||||
echo "pass in quick $family proto $1 from port $2 no state"
|
||||
echo "pass out quick $family proto $1 to port $2 divert-packet port $IPFW_DIVERT_PORT no state"
|
||||
[ "$1" = tcp ] && echo "pass in quick $family proto $1 from {$iplist} port $2 flags SA/SA divert-packet port $IPFW_DIVERT_PORT no state"
|
||||
echo "pass in quick $family proto $1 from {$iplist} port $2 no state"
|
||||
echo "pass out quick $family proto $1 to {$iplist} port $2 divert-packet port $IPFW_DIVERT_PORT no state"
|
||||
echo "pass"
|
||||
}
|
||||
opf_prepare_dvtws()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
opf_dvtws_anchor $1 $2 | pfctl -qf -
|
||||
# $3 - ip list
|
||||
opf_dvtws_anchor $1 $2 "$3" | pfctl -qf -
|
||||
pfctl -qe
|
||||
}
|
||||
|
||||
@ -700,13 +705,12 @@ curl_test_http3()
|
||||
curl_with_dig $1 $2 $QUIC_PORT -ISs -A "$USER_AGENT" --max-time $CURL_MAX_TIME_QUIC --http3-only $CURL_OPT "https://$2" -o /dev/null 2>&1
|
||||
}
|
||||
|
||||
ipt_scheme()
|
||||
ipt_aux_scheme()
|
||||
{
|
||||
# $1 - 1 - add , 0 - del
|
||||
# $2 - tcp/udp
|
||||
# $3 - port
|
||||
|
||||
IPT_ADD_DEL $1 OUTPUT -t mangle -p $2 --dport $3 -m mark ! --mark $DESYNC_MARK/$DESYNC_MARK -j NFQUEUE --queue-num $QNUM
|
||||
# to avoid possible INVALID state drop
|
||||
[ "$2" = tcp ] && IPT_ADD_DEL $1 INPUT -p $2 --sport $3 ! --syn -j ACCEPT
|
||||
# for strategies with incoming packets involved (autottl)
|
||||
@ -722,13 +726,42 @@ ipt_scheme()
|
||||
# raw table may not be present
|
||||
IPT_ADD_DEL $1 OUTPUT -t raw -m mark --mark $DESYNC_MARK/$DESYNC_MARK -j CT --notrack
|
||||
}
|
||||
ipt_scheme()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
# $3 - ip list
|
||||
|
||||
local ip
|
||||
|
||||
$IPTABLES -t mangle -N blockcheck_output 2>/dev/null
|
||||
$IPTABLES -t mangle -F blockcheck_output
|
||||
IPT OUTPUT -t mangle -j blockcheck_output
|
||||
|
||||
# prevent loop
|
||||
$IPTABLES -t mangle -A blockcheck_output -m mark --mark $DESYNC_MARK/$DESYNC_MARK -j RETURN
|
||||
$IPTABLES -t mangle -A blockcheck_output ! -p $1 -j RETURN
|
||||
$IPTABLES -t mangle -A blockcheck_output -p $1 ! --dport $2 -j RETURN
|
||||
|
||||
for ip in $3; do
|
||||
$IPTABLES -t mangle -A blockcheck_output -d $ip -j NFQUEUE --queue-num $QNUM
|
||||
done
|
||||
|
||||
ipt_aux_scheme 1 $1 $2
|
||||
}
|
||||
nft_scheme()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
# $3 - ip list
|
||||
|
||||
local iplist ipver=$IPV
|
||||
[ "$IPV" = 6 ] || ipver=
|
||||
make_comma_list iplist $3
|
||||
|
||||
nft add table inet $NFT_TABLE
|
||||
nft "add chain inet $NFT_TABLE postnat { type filter hook output priority 102; }"
|
||||
nft "add rule inet $NFT_TABLE postnat meta nfproto ipv${IPV} $1 dport $2 mark and $DESYNC_MARK != $DESYNC_MARK queue num $QNUM"
|
||||
nft "add rule inet $NFT_TABLE postnat meta nfproto ipv${IPV} $1 dport $2 mark and $DESYNC_MARK != $DESYNC_MARK ip${ipver} daddr {$iplist} queue num $QNUM"
|
||||
# for strategies with incoming packets involved (autottl)
|
||||
nft "add chain inet $NFT_TABLE prenat { type filter hook prerouting priority -102; }"
|
||||
# enable everything generated by nfqws (works only in OUTPUT, not in FORWARD)
|
||||
@ -740,23 +773,33 @@ pktws_ipt_prepare()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
# $3 - ip list
|
||||
|
||||
local ip
|
||||
|
||||
case "$FWTYPE" in
|
||||
iptables)
|
||||
ipt_scheme 1 $1 $2
|
||||
ipt_scheme $1 $2 "$3"
|
||||
;;
|
||||
nftables)
|
||||
nft_scheme $1 $2
|
||||
nft_scheme $1 $2 "$3"
|
||||
;;
|
||||
ipfw)
|
||||
# disable PF to avoid interferences
|
||||
pf_is_avail && pfctl -qd
|
||||
IPFW_ADD divert $IPFW_DIVERT_PORT $1 from me to any $2 proto ip${IPV} out not diverted not sockarg
|
||||
for ip in $3; do
|
||||
IPFW_ADD divert $IPFW_DIVERT_PORT $1 from me to $ip $2 proto ip${IPV} out not diverted not sockarg
|
||||
done
|
||||
;;
|
||||
opf)
|
||||
opf_prepare_dvtws $1 $2
|
||||
opf_prepare_dvtws $1 $2 "$3"
|
||||
;;
|
||||
windivert)
|
||||
WF="--wf-l3=ipv${IPV} --wf-${1}=$2"
|
||||
rm -f "$IPSET_FILE"
|
||||
for ip in $3; do
|
||||
echo $ip >>"$IPSET_FILE"
|
||||
done
|
||||
;;
|
||||
|
||||
esac
|
||||
@ -765,9 +808,13 @@ pktws_ipt_unprepare()
|
||||
{
|
||||
# $1 - tcp/udp
|
||||
# $2 - port
|
||||
|
||||
case "$FWTYPE" in
|
||||
iptables)
|
||||
ipt_scheme 0 $1 $2
|
||||
ipt_aux_scheme 0 $1 $2
|
||||
IPT_DEL OUTPUT -t mangle -j blockcheck_output
|
||||
$IPTABLES -t mangle -F blockcheck_output 2>/dev/null
|
||||
$IPTABLES -t mangle -X blockcheck_output 2>/dev/null
|
||||
;;
|
||||
nftables)
|
||||
nft delete table inet $NFT_TABLE 2>/dev/null
|
||||
@ -781,6 +828,7 @@ pktws_ipt_unprepare()
|
||||
;;
|
||||
windivert)
|
||||
unset WF
|
||||
rm -f "$IPSET_FILE"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
@ -788,21 +836,37 @@ pktws_ipt_unprepare()
|
||||
pktws_ipt_prepare_tcp()
|
||||
{
|
||||
# $1 - port
|
||||
# $2 - ip list
|
||||
|
||||
pktws_ipt_prepare tcp $1
|
||||
local ip iplist ipver
|
||||
|
||||
pktws_ipt_prepare tcp $1 "$2"
|
||||
|
||||
case "$FWTYPE" in
|
||||
iptables)
|
||||
# for autottl
|
||||
IPT INPUT -t mangle -p tcp --sport $1 -m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:1 -j NFQUEUE --queue-num $QNUM
|
||||
$IPTABLES -N blockcheck_input -t mangle 2>/dev/null
|
||||
$IPTABLES -F blockcheck_input -t mangle 2>/dev/null
|
||||
IPT INPUT -t mangle -j blockcheck_input
|
||||
$IPTABLES -t mangle -A blockcheck_input ! -p tcp -j RETURN
|
||||
$IPTABLES -t mangle -A blockcheck_input -p tcp ! --sport $1 -j RETURN
|
||||
$IPTABLES -t mangle -A blockcheck_input -m connbytes --connbytes-dir=reply --connbytes-mode=packets ! --connbytes 1 -j RETURN
|
||||
for ip in $2; do
|
||||
$IPTABLES -A blockcheck_input -t mangle -s $ip -j NFQUEUE --queue-num $QNUM
|
||||
done
|
||||
;;
|
||||
nftables)
|
||||
ipver=$IPV
|
||||
[ "$IPV" = 6 ] || ipver=
|
||||
# for autottl
|
||||
nft "add rule inet $NFT_TABLE prenat meta nfproto ipv${IPV} tcp sport $1 ct original packets 1 queue num $QNUM"
|
||||
make_comma_list iplist $2
|
||||
nft "add rule inet $NFT_TABLE prenat meta nfproto ipv${IPV} tcp sport $1 ip${ipver} saddr {$iplist} ct original packets 1 queue num $QNUM"
|
||||
;;
|
||||
ipfw)
|
||||
# for autottl mode
|
||||
IPFW_ADD divert $IPFW_DIVERT_PORT tcp from any $1 to me proto ip${IPV} tcpflags syn,ack in not diverted not sockarg
|
||||
for ip in $2; do
|
||||
IPFW_ADD divert $IPFW_DIVERT_PORT tcp from $ip $1 to me proto ip${IPV} tcpflags syn,ack in not diverted not sockarg
|
||||
done
|
||||
;;
|
||||
esac
|
||||
}
|
||||
@ -814,15 +878,18 @@ pktws_ipt_unprepare_tcp()
|
||||
|
||||
case "$FWTYPE" in
|
||||
iptables)
|
||||
IPT_DEL INPUT -t mangle -p tcp --sport $1 -m connbytes --connbytes-dir=original --connbytes-mode=packets --connbytes 1:1 -j NFQUEUE --queue-num $QNUM
|
||||
IPT_DEL INPUT -t mangle -j blockcheck_input
|
||||
$IPTABLES -t mangle -F blockcheck_input 2>/dev/null
|
||||
$IPTABLES -t mangle -X blockcheck_input 2>/dev/null
|
||||
;;
|
||||
esac
|
||||
}
|
||||
pktws_ipt_prepare_udp()
|
||||
{
|
||||
# $1 - port
|
||||
# $2 - ip list
|
||||
|
||||
pktws_ipt_prepare udp $1
|
||||
pktws_ipt_prepare udp $1 "$2"
|
||||
}
|
||||
pktws_ipt_unprepare_udp()
|
||||
{
|
||||
@ -841,7 +908,7 @@ pktws_start()
|
||||
"$DVTWS" --port=$IPFW_DIVERT_PORT "$@" >/dev/null &
|
||||
;;
|
||||
CYGWIN)
|
||||
"$WINWS" $WF "$@" >/dev/null &
|
||||
"$WINWS" $WF --ipset="$IPSET_FILE" "$@" >/dev/null &
|
||||
;;
|
||||
esac
|
||||
PID=$!
|
||||
@ -1215,7 +1282,7 @@ pktws_check_domain_http3_bypass_()
|
||||
{
|
||||
# $1 - test function
|
||||
# $2 - domain
|
||||
|
||||
|
||||
local f desync frag tests rep
|
||||
|
||||
for rep in '' 2 5 10 20; do
|
||||
@ -1413,7 +1480,7 @@ check_domain_http_tcp()
|
||||
[ "$SKIP_PKTWS" = 1 ] || {
|
||||
echo
|
||||
echo preparing $PKTWSD redirection
|
||||
pktws_ipt_prepare_tcp $2
|
||||
pktws_ipt_prepare_tcp $2 "$(mdig_resolve_all $IPV $4)"
|
||||
|
||||
pktws_check_domain_http_bypass $1 $3 $4
|
||||
|
||||
@ -1436,7 +1503,7 @@ check_domain_http_udp()
|
||||
[ "$SKIP_PKTWS" = 1 ] || {
|
||||
echo
|
||||
echo preparing $PKTWSD redirection
|
||||
pktws_ipt_prepare_udp $2
|
||||
pktws_ipt_prepare_udp $2 "$(mdig_resolve_all $IPV $3)"
|
||||
|
||||
pktws_check_domain_http3_bypass $1 $3
|
||||
|
||||
@ -1756,7 +1823,7 @@ check_dns_cleanup()
|
||||
{
|
||||
rm -f "$DNSCHECK_DIG1" "$DNSCHECK_DIG2" "$DNSCHECK_DIGS" 2>/dev/null
|
||||
}
|
||||
check_dns()
|
||||
check_dns_()
|
||||
{
|
||||
local C1 C2 dom
|
||||
|
||||
@ -1799,8 +1866,8 @@ check_dns()
|
||||
for dom in $DNSCHECK_DOM; do echo $dom; done | "$MDIG" --threads=10 --family=4 >"$DNSCHECK_DIGS"
|
||||
fi
|
||||
|
||||
echo checking resolved IP uniqueness for : $DNSCHECK_DOM
|
||||
echo censor\'s DNS can return equal result for multiple blocked domains.
|
||||
echo "checking resolved IP uniqueness for : $DNSCHECK_DOM"
|
||||
echo "censor's DNS can return equal result for multiple blocked domains."
|
||||
C1=$(wc -l <"$DNSCHECK_DIGS")
|
||||
C2=$(sort -u "$DNSCHECK_DIGS" | wc -l)
|
||||
[ "$C1" -eq 0 ] &&
|
||||
@ -1828,6 +1895,14 @@ check_dns()
|
||||
return 0
|
||||
}
|
||||
|
||||
check_dns()
|
||||
{
|
||||
local r
|
||||
check_dns_
|
||||
r=$?
|
||||
[ "$SECURE_DNS" = 1 ] && doh_find_working
|
||||
return $r
|
||||
}
|
||||
|
||||
unprepare_all()
|
||||
{
|
||||
@ -1860,6 +1935,7 @@ sigsilent()
|
||||
exit 1
|
||||
}
|
||||
|
||||
|
||||
fsleep_setup
|
||||
fix_sbin_path
|
||||
check_system
|
||||
@ -1868,7 +1944,6 @@ check_already
|
||||
check_prerequisites
|
||||
trap sigint_cleanup INT
|
||||
check_dns
|
||||
[ "$SECURE_DNS" = 1 ] && doh_find_working
|
||||
check_virt
|
||||
ask_params
|
||||
trap - INT
|
||||
|
||||
Loading…
Reference in New Issue
Block a user