nfqws,tpws: fix crash

blockcheck.sh

@@ -1173,7 +1173,7 @@ pktws_check_domain_http_bypass_()
 	local splits_tls='2 1 sniext+1 sniext+4 host+1 midsld 1,midsld 1,sniext+1,host+1,midsld-2,midsld,midsld+2,endhost-1'
 
 	[ "$sec" = 0 ] && {
-		for s in '--hostcase' '--hostspell=hoSt' '--hostnospace' '--domcase'; do
+		for s in '--hostcase' '--hostspell=hoSt' '--hostnospace' '--domcase' '--methodeol'; do
 			pktws_curl_test_update $1 $3 $s
 		done
 	}

docs/changes.txt

@@ -389,3 +389,14 @@ blockcheck: added CURL_OPT
 blockcheck: new strategies support
 blockcheck: test sequence rework
 blockcheck: view all working strategies in summary
+
+v69.1:
+
+init.d: keenetic udp fix custom
+tpws: fixed incorrect hostlist checks
+
+v69.2:
+
+nfqws,tpws: --skip
+nfqws: --methodeol
+init.d: do not use pgrep in sysv for busybox compat

docs/readme.en.md

@@ -146,6 +146,7 @@ nfqws takes the following parameters:
  --hostspell                                    ; exact spelling of "Host" header. must be 4 chars. default is "host"
  --hostnospace                                  ; remove space after Host: and add it to User-Agent: to preserve packet size
  --domcase                                      ; mix domain case : Host: TeSt.cOm
+ --methodeol					; add '\n' before method and remove space after Host:
  --dpi-desync=[<mode0>,]<mode>[,<mode2>]        ; try to desync dpi state. modes : synack fake fakeknown rst rstack hopbyhop destopt ipfrag1 multisplit multidisorder fakedsplit fakeddisorder ipfrag2 udplen tamper
  --dpi-desync-fwmark=<int|0xHEX>                ; override fwmark for desync packet. default = 0x40000000 (1073741824)
  --dpi-desync-ttl=<int>                         ; set ttl for desync packet
@@ -185,7 +186,8 @@ nfqws takes the following parameters:
  --hostlist-auto-fail-time=<int>                ; all failed attemps must be within these seconds (default : 60)
  --hostlist-auto-retrans-threshold=<int>        ; how many request retransmissions cause attempt to fail (default : 3)
  --hostlist-auto-debug=<logfile>        	; debug auto hostlist positives
- --new                                          ; begin new strategy
+ --new                                          ; begin new strategy (new profile)
+ --skip                                         ; do not use this profile
  --filter-l3=ipv4|ipv6                          ; L3 protocol filter. multiple comma separated values allowed.
  --filter-tcp=[~]port1[-port2]|*                ; TCP port filter. ~ means negation. setting tcp and not setting udp filter denies udp. comma separated list supported.
  --filter-udp=[~]port1[-port2]|*                ; UDP port filter. ~ means negation. setting udp and not setting tcp filter denies tcp. comma separated list supported.
@@ -267,7 +269,7 @@ Positions are defined by markers.
 
 Relative positions :
 
-* **method** - HTTP method start ('GET', 'POST', 'HEAD', ...). Method is usually always at position 0 but also supported `--methodeol` fooling by **tpws**. If fooled position can become 1 or 2.
+* **method** - HTTP method start ('GET', 'POST', 'HEAD', ...). Method is usually always at position 0 but can shift because of `--methodeol` fooling. If fooled position can become 1 or 2.
 * **host** - hostname start in a known protocol (http, TLS)
 * **endhost** - the byte next to the last hostname's byte
 * **sld** - second level domain start in the hostname
@@ -663,7 +665,8 @@ tpws is transparent proxy.
                                          ; its worth to make a reserve with 1.5 multiplier. by default maxfiles is (X*connections)*1.5+16
  --max-orphan-time=<sec>                 ; if local leg sends something and closes and remote leg is still connecting then cancel connection attempt after N seconds
 
- --new                                   ; begin new strategy
+ --new                                   ; begin new strategy (new profile)
+ --skip                                  ; do not use this profile
  --filter-l3=ipv4|ipv6                   ; L3 protocol filter. multiple comma separated values allowed.
  --filter-tcp=[~]port1[-port2]|*         ; TCP port filter. ~ means negation. comma separated list supported.
  --filter-l7=[http|tls|unknown]          ; L6-L7 protocol filter. multiple comma separated values allowed.

docs/readme.md

@@ -175,6 +175,7 @@ dvtws, собираемый из тех же исходников (см. [док
 --ctrack-timeouts=S:E:F[:U]           		; таймауты внутреннего conntrack в состояниях SYN, ESTABLISHED, FIN, таймаут udp. по умолчанию 60:300:60:60
 --hostcase					; менять регистр заголовка "Host:" по умолчанию на "host:".
 --hostnospace					; убрать пробел после "Host:" и переместить его в конец значения "User-Agent:" для сохранения длины пакета
+--methodeol                                     ; добавить перевод строки в unix стиле ('\n') перед методом и убрать пробел из Host: : "GET / ... Host: domain.com" => "\nGET  / ... Host:domain.com"
 --hostspell=HoST				; точное написание заголовка Host (можно "HOST" или "HoSt"). автоматом включает --hostcase
 --domcase					; домен после Host: сделать таким : TeSt.cOm
 --dpi-desync=[<mode0>,]<mode>[,<mode2]		; атака по десинхронизации DPI. mode : synack syndata fake fakeknown rst rstack hopbyhop destopt ipfrag1 multisplit multidisorder fakedsplit fakeddisorder ipfrag2 udplen tamper
@@ -217,6 +218,7 @@ dvtws, собираемый из тех же исходников (см. [док
 --hostlist-auto-retrans-threshold=<int>		; сколько ретрансмиссий запроса считать блокировкой (по умолчанию: 3)
 --hostlist-auto-debug=<logfile>			; лог положительных решений по autohostlist. позволяет разобраться почему там появляются хосты.
 --new						; начало новой стратегии (новый	профиль)
+--skip						; не использовать этот профиль . полезно для временной деактивации профиля без удаления параметров.
 --filter-l3=ipv4|ipv6				; фильтр версии ip для текущей стратегии
 --filter-tcp=[~]port1[-port2]|*			; фильтр портов tcp для текущей стратегии. ~ означает инверсию. установка фильтра tcp и неустановка фильтра udp запрещает udp. поддерживается список через запятую.
 --filter-udp=[~]port1[-port2]|*			; фильтр портов udp для текущей стратегии. ~ означает инверсию. установка фильтра udp и неустановка фильтра tcp запрещает tcp. поддерживается список через запятую.
@@ -323,7 +325,7 @@ dvtws, собираемый из тех же исходников (см. [док
 
 Относительные позиции :
 
-* **method** - начало метода HTTP ('GET', 'POST', 'HEAD', ...). Метод обычно всегда находится на позиции 0, но поддерживается и нахождение метода после дурение методом `--methodeol` от tpws. Тогда позиция может стать 1 или 2.
+* **method** - начало метода HTTP ('GET', 'POST', 'HEAD', ...). Метод обычно всегда находится на позиции 0, но может сместиться из-за `--methodeol`. Тогда позиция может стать 1 или 2.
 * **host** - начало имени хоста в известном протоколе (http, TLS)
 * **endhost** - байт, следующий за последним байтом имени хоста
 * **sld** - начало домена 2 уровня в имени хоста
@@ -826,6 +828,7 @@ tpws - это transparent proxy.
 --hostlist-auto-fail-time=<int>		; все эти ситуации должны быть в пределах указанного количества секунд (по умолчанию: 60)
 --hostlist-auto-debug=<logfile>		; лог положительных решений по autohostlist. позволяет разобраться почему там появляются хосты.
 --new					; начало новой стратегии (новый профиль)
+--skip					; не использовать этот профиль . полезно для временной деактивации профиля без удаления параметров.
 --filter-l3=ipv4|ipv6			; фильтр версии ip для текущей стратегии
 --filter-tcp=[~]port1[-port2]|*		; фильтр портов tcp для текущей стратегии. ~ означает инверсию. поддерживается список через запятую.
 --filter-l7=[http|tls|quic|wireguard|dht|unknown] ; фильтр протокола L6-L7. поддерживается несколько значений через запятую.

init.d/sysv/functions

@@ -167,9 +167,15 @@ run_daemon()
 	# use $PIDDIR/$DAEMONBASE$1.pid as pidfile
 
 	local DAEMONBASE="$(basename "$2")"
-	local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
+	local PID= PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
 	echo "Starting daemon $1: $2 $3"
-	if [ -f "$PIDFILE" ] && pgrep -F "$PIDFILE" "$DAEMONBASE" >/dev/null; then
+
+	[ -f "$PIDFILE" ] && {
+		read PID <"$PIDFILE"
+		[ -d "/proc/$PID" ] || PID=
+	}
+
+	if [ -n "$PID" ]; then
 		echo already running
 	else
 		"$2" $3 >/dev/null &
@@ -188,11 +194,8 @@ stop_daemon()
 	# $2 - daemon
 	# use $PIDDIR/$DAEMONBASE$1.pid as pidfile
 	local DAEMONBASE="$(basename "$2")"
-	local PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
+	local PID PIDFILE=$PIDDIR/$DAEMONBASE$1.pid
 	echo "Stopping daemon $1: $2"
-	if exists start-stop-daemon ; then
-		start-stop-daemon -K -p "$PIDFILE" -x "$2"
-	else
 	if [ -f "$PIDFILE" ]; then
 		read PID <"$PIDFILE"
 		kill $PID
@@ -200,7 +203,6 @@ stop_daemon()
 	else
 		echo no pidfile : $PIDFILE
 	fi
-	fi
 }
 do_daemon()
 {

nfq/Makefile

@@ -1,6 +1,6 @@
 CC ?= gcc
-CFLAGS += -std=gnu99 -Os
+CFLAGS += -std=gnu99 -Os -flto=auto
-CFLAGS_BSD = -Wno-address-of-packed-member -flto=auto
+CFLAGS_BSD = -Wno-address-of-packed-member
 CFLAGS_CYGWIN = -Wno-address-of-packed-member -static
 LIBS_LINUX = -lnetfilter_queue -lnfnetlink -lz
 LIBS_BSD = -lz

nfq/desync.c

@@ -1082,7 +1082,7 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
 		}
 
 		ttl_fake = (ctrack_replay && ctrack_replay->autottl) ? ctrack_replay->autottl : (dis->ip6 ? (dp->desync_ttl6 ? dp->desync_ttl6 : ttl_orig) : (dp->desync_ttl ? dp->desync_ttl : ttl_orig));
-		if ((l7proto == HTTP) && (dp->hostcase || dp->hostnospace || dp->domcase) && HttpFindHost(&phost,dis->data_payload,dis->len_payload))
+		if ((l7proto == HTTP) && (dp->hostcase || dp->hostnospace || dp->domcase || dp->methodeol) && HttpFindHost(&phost,dis->data_payload,dis->len_payload))
 		{
 			if (dp->hostcase)
 			{
@@ -1098,8 +1098,9 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
 				verdict=VERDICT_MODIFY;
 			}
 			uint8_t *pua;
-			if (dp->hostnospace &&
+			if (dp->hostnospace)
-				(pua = (uint8_t*)memmem(dis->data_payload, dis->len_payload, "\r\nUser-Agent: ", 14)) &&
+			{
+				if ((pua = (uint8_t*)memmem(dis->data_payload, dis->len_payload, "\r\nUser-Agent: ", 14)) &&
 					(pua = (uint8_t*)memmem(pua + 1, dis->len_payload - (pua - dis->data_payload) - 1, "\r\n", 2)))
 				{
 					DLOG("removing space after Host: and adding it to User-Agent:\n");
@@ -1115,6 +1116,22 @@ static uint8_t dpi_desync_tcp_packet_play(bool replay, size_t reasm_offset, uint
 					}
 					verdict=VERDICT_MODIFY;
 				}
+				else
+					DLOG("cannot do hostnospace because valid User-Agent: not found\n");
+			}
+			else if (dp->methodeol)
+			{
+				if (phost[5]==' ' || phost[5]=='\t')
+				{
+					DLOG("removing space after Host: and adding '\\n' before method\n");
+					memmove(dis->data_payload+1,dis->data_payload,phost-dis->data_payload+5);
+					dis->data_payload[0]='\n';
+					verdict=VERDICT_MODIFY;
+				}
+				else
+					DLOG("cannot do methodeol because there's no space or tab after Host:\n");
+			}
+			
 		}
 
 		if (dp->desync_mode==DESYNC_NONE)

nfq/nfqws.c

@@ -1020,6 +1020,7 @@ static void exithelp(void)
 #endif
 		"\nMULTI-STRATEGY:\n"
 		" --new\t\t\t\t\t\t; begin new strategy\n"
+		" --skip\t\t\t\t\t\t; do not use this strategy\n"
 		" --filter-l3=ipv4|ipv6\t\t\t\t; L3 protocol filter. multiple comma separated values allowed.\n"
 		" --filter-tcp=[~]port1[-port2]|*\t\t; TCP port filter. ~ means negation. setting tcp and not setting udp filter denies udp. comma separated list allowed.\n"
 		" --filter-udp=[~]port1[-port2]|*\t\t; UDP port filter. ~ means negation. setting udp and not setting tcp filter denies tcp. comma separated list allowed.\n"
@@ -1042,6 +1043,7 @@ static void exithelp(void)
 		" --hostspell\t\t\t\t\t; exact spelling of \"Host\" header. must be 4 chars. default is \"host\"\n"
 		" --hostnospace\t\t\t\t\t; remove space after Host: and add it to User-Agent: to preserve packet size\n"
 		" --domcase\t\t\t\t\t; mix domain case : Host: TeSt.cOm\n"
+		" --methodeol\t\t\t\t\t; add '\\n' before method and remove space from Host:\n"
 		" --dpi-desync=[<mode0>,]<mode>[,<mode2>]\t; try to desync dpi state. modes :\n"
 		"\t\t\t\t\t\t; synack syndata fake fakeknown rst rstack hopbyhop destopt ipfrag1\n"
 		"\t\t\t\t\t\t; multisplit multidisorder fakedsplit fakeddisorder ipfrag2 udplen tamper\n"
@@ -1139,7 +1141,7 @@ int main(int argc, char **argv)
 #endif
 	int result, v;
 	int option_index = 0;
-	bool daemon = false;
+	bool daemon = false, bSkip = false;
 	char pidfile[256];
 #ifdef __CYGWIN__
 	char windivert_filter[8192], wf_pf_tcp_src[256], wf_pf_tcp_dst[256], wf_pf_udp_src[256], wf_pf_udp_dst[256], wf_save_file[256];
@@ -1227,70 +1229,72 @@ int main(int argc, char **argv)
 		{"hostspell",required_argument,0,0},	// optidx=11
 		{"hostnospace",no_argument,0,0},	// optidx=12
 		{"domcase",no_argument,0,0 },		// optidx=13
-		{"dpi-desync",required_argument,0,0},		// optidx=14
+		{"methodeol",no_argument,0,0 },		// optidx=14
+		{"dpi-desync",required_argument,0,0},		// optidx=15
 #ifdef __linux__
-		{"dpi-desync-fwmark",required_argument,0,0},	// optidx=15
+		{"dpi-desync-fwmark",required_argument,0,0},	// optidx=16
 #elif defined(SO_USER_COOKIE)
-		{"dpi-desync-sockarg",required_argument,0,0},	// optidx=15
+		{"dpi-desync-sockarg",required_argument,0,0},	// optidx=16
 #else
-		{"disabled_argument_4",no_argument,0,0},	// optidx=15
+		{"disabled_argument_4",no_argument,0,0},	// optidx=16
 #endif
-		{"dpi-desync-ttl",required_argument,0,0},	// optidx=16
+		{"dpi-desync-ttl",required_argument,0,0},	// optidx=17
-		{"dpi-desync-ttl6",required_argument,0,0},	// optidx=17
+		{"dpi-desync-ttl6",required_argument,0,0},	// optidx=18
-		{"dpi-desync-autottl",optional_argument,0,0},	// optidx=18
+		{"dpi-desync-autottl",optional_argument,0,0},	// optidx=19
-		{"dpi-desync-autottl6",optional_argument,0,0},	// optidx=19
+		{"dpi-desync-autottl6",optional_argument,0,0},	// optidx=20
-		{"dpi-desync-fooling",required_argument,0,0},	// optidx=20
+		{"dpi-desync-fooling",required_argument,0,0},	// optidx=21
-		{"dpi-desync-repeats",required_argument,0,0},	// optidx=21
+		{"dpi-desync-repeats",required_argument,0,0},	// optidx=22
-		{"dpi-desync-skip-nosni",optional_argument,0,0},// optidx=22
+		{"dpi-desync-skip-nosni",optional_argument,0,0},// optidx=23
-		{"dpi-desync-split-pos",required_argument,0,0},// optidx=23
+		{"dpi-desync-split-pos",required_argument,0,0},// optidx=24
-		{"dpi-desync-split-http-req",required_argument,0,0 },// optidx=24
+		{"dpi-desync-split-http-req",required_argument,0,0 },// optidx=25
-		{"dpi-desync-split-tls",required_argument,0,0 },// optidx=25
+		{"dpi-desync-split-tls",required_argument,0,0 },// optidx=26
-		{"dpi-desync-split-seqovl",required_argument,0,0 },// optidx=26
+		{"dpi-desync-split-seqovl",required_argument,0,0 },// optidx=27
-		{"dpi-desync-split-seqovl-pattern",required_argument,0,0 },// optidx=27
+		{"dpi-desync-split-seqovl-pattern",required_argument,0,0 },// optidx=28
-		{"dpi-desync-ipfrag-pos-tcp",required_argument,0,0},// optidx=28
+		{"dpi-desync-ipfrag-pos-tcp",required_argument,0,0},// optidx=29
-		{"dpi-desync-ipfrag-pos-udp",required_argument,0,0},// optidx=29
+		{"dpi-desync-ipfrag-pos-udp",required_argument,0,0},// optidx=30
-		{"dpi-desync-badseq-increment",required_argument,0,0},// optidx=30
+		{"dpi-desync-badseq-increment",required_argument,0,0},// optidx=31
-		{"dpi-desync-badack-increment",required_argument,0,0},// optidx=31
+		{"dpi-desync-badack-increment",required_argument,0,0},// optidx=32
-		{"dpi-desync-any-protocol",optional_argument,0,0},// optidx=32
+		{"dpi-desync-any-protocol",optional_argument,0,0},// optidx=33
-		{"dpi-desync-fake-http",required_argument,0,0},// optidx=33
+		{"dpi-desync-fake-http",required_argument,0,0},// optidx=34
-		{"dpi-desync-fake-tls",required_argument,0,0},// optidx=34
+		{"dpi-desync-fake-tls",required_argument,0,0},// optidx=35
-		{"dpi-desync-fake-unknown",required_argument,0,0},// optidx=35
+		{"dpi-desync-fake-unknown",required_argument,0,0},// optidx=36
-		{"dpi-desync-fake-syndata",required_argument,0,0},// optidx=36
+		{"dpi-desync-fake-syndata",required_argument,0,0},// optidx=37
-		{"dpi-desync-fake-quic",required_argument,0,0},// optidx=37
+		{"dpi-desync-fake-quic",required_argument,0,0},// optidx=38
-		{"dpi-desync-fake-wireguard",required_argument,0,0},// optidx=38
+		{"dpi-desync-fake-wireguard",required_argument,0,0},// optidx=39
-		{"dpi-desync-fake-dht",required_argument,0,0},// optidx=39
+		{"dpi-desync-fake-dht",required_argument,0,0},// optidx=40
-		{"dpi-desync-fake-unknown-udp",required_argument,0,0},// optidx=40
+		{"dpi-desync-fake-unknown-udp",required_argument,0,0},// optidx=41
-		{"dpi-desync-udplen-increment",required_argument,0,0},// optidx=41
+		{"dpi-desync-udplen-increment",required_argument,0,0},// optidx=42
-		{"dpi-desync-udplen-pattern",required_argument,0,0},// optidx=42
+		{"dpi-desync-udplen-pattern",required_argument,0,0},// optidx=43
-		{"dpi-desync-cutoff",required_argument,0,0},// optidx=43
+		{"dpi-desync-cutoff",required_argument,0,0},// optidx=44
-		{"dpi-desync-start",required_argument,0,0},// optidx=43
+		{"dpi-desync-start",required_argument,0,0},// optidx=45
-		{"hostlist",required_argument,0,0},		// optidx=44
+		{"hostlist",required_argument,0,0},		// optidx=46
-		{"hostlist-exclude",required_argument,0,0},	// optidx=45
+		{"hostlist-exclude",required_argument,0,0},	// optidx=47
-		{"hostlist-auto",required_argument,0,0},	// optidx=46
+		{"hostlist-auto",required_argument,0,0},	// optidx=48
-		{"hostlist-auto-fail-threshold",required_argument,0,0},	// optidx=48
+		{"hostlist-auto-fail-threshold",required_argument,0,0},	// optidx=49
-		{"hostlist-auto-fail-time",required_argument,0,0},	// optidx=49
+		{"hostlist-auto-fail-time",required_argument,0,0},	// optidx=50
-		{"hostlist-auto-retrans-threshold",required_argument,0,0},	// optidx=50
+		{"hostlist-auto-retrans-threshold",required_argument,0,0},	// optidx=51
-		{"hostlist-auto-debug",required_argument,0,0},	// optidx=51
+		{"hostlist-auto-debug",required_argument,0,0},	// optidx=52
-		{"new",no_argument,0,0},	// optidx=52
+		{"new",no_argument,0,0},	// optidx=53
-		{"filter-l3",required_argument,0,0},	// optidx=53
+		{"skip",no_argument,0,0},	// optidx=54
-		{"filter-tcp",required_argument,0,0},	// optidx=54
+		{"filter-l3",required_argument,0,0},	// optidx=55
-		{"filter-udp",required_argument,0,0},	// optidx=55
+		{"filter-tcp",required_argument,0,0},	// optidx=56
-		{"filter-l7",required_argument,0,0},	// optidx=56
+		{"filter-udp",required_argument,0,0},	// optidx=57
-		{"ipset",required_argument,0,0},	// optidx=57
+		{"filter-l7",required_argument,0,0},	// optidx=58
-		{"ipset-exclude",required_argument,0,0},// optidx=58
+		{"ipset",required_argument,0,0},	// optidx=59
+		{"ipset-exclude",required_argument,0,0},// optidx=60
 #ifdef __linux__
-		{"bind-fix4",no_argument,0,0},		// optidx=59
+		{"bind-fix4",no_argument,0,0},		// optidx=61
-		{"bind-fix6",no_argument,0,0},		// optidx=60
+		{"bind-fix6",no_argument,0,0},		// optidx=62
 #elif defined(__CYGWIN__)
-		{"wf-iface",required_argument,0,0},	// optidx=59
+		{"wf-iface",required_argument,0,0},	// optidx=61
-		{"wf-l3",required_argument,0,0},	// optidx=60
+		{"wf-l3",required_argument,0,0},	// optidx=62
-		{"wf-tcp",required_argument,0,0},	// optidx=61
+		{"wf-tcp",required_argument,0,0},	// optidx=63
-		{"wf-udp",required_argument,0,0},	// optidx=62
+		{"wf-udp",required_argument,0,0},	// optidx=64
-		{"wf-raw",required_argument,0,0},	// optidx=63
+		{"wf-raw",required_argument,0,0},	// optidx=65
-		{"wf-save",required_argument,0,0},	// optidx=64
+		{"wf-save",required_argument,0,0},	// optidx=66
-		{"ssid-filter",required_argument,0,0},	// optidx=65
+		{"ssid-filter",required_argument,0,0},	// optidx=67
-		{"nlm-filter",required_argument,0,0},	// optidx=66
+		{"nlm-filter",required_argument,0,0},	// optidx=68
-		{"nlm-list",optional_argument,0,0},	// optidx=67
+		{"nlm-list",optional_argument,0,0},	// optidx=69
 #endif
 		{NULL,0,NULL,0}
 	};
@@ -1422,12 +1426,25 @@ int main(int argc, char **argv)
 			memcpy(dp->hostspell, optarg, 4);
 			break;
 		case 12: /* hostnospace */
+			if (dp->methodeol)
+			{
+				DLOG_ERR("--hostnospace and --methodeol are incompatible\n");
+				exit_clean(1);
+			}
 			dp->hostnospace = true;
 			break;
 		case 13: /* domcase */
 			dp->domcase = true;
 			break;
-		case 14: /* dpi-desync */
+		case 14: /* methodeol */
+			if (dp->hostnospace)
+			{
+				DLOG_ERR("--hostnospace and --methodeol are incompatible\n");
+				exit_clean(1);
+			}
+			dp->methodeol = true;
+			break;
+		case 15: /* dpi-desync */
 			{
 				char *mode=optarg,*mode2,*mode3;
 				mode2 = mode ? strchr(mode,',') : NULL;
@@ -1473,7 +1490,7 @@ int main(int argc, char **argv)
 			}
 			break;
 #ifndef __CYGWIN__
-		case 15: /* dpi-desync-fwmark/dpi-desync-sockarg */
+		case 16: /* dpi-desync-fwmark/dpi-desync-sockarg */
 #if defined(__linux__) || defined(SO_USER_COOKIE)
 			params.desync_fwmark = 0;
 			if (sscanf(optarg, "0x%X", &params.desync_fwmark)<=0) sscanf(optarg, "%u", &params.desync_fwmark);
@@ -1488,27 +1505,27 @@ int main(int argc, char **argv)
 #endif
 			break;
 #endif
-		case 16: /* dpi-desync-ttl */
+		case 17: /* dpi-desync-ttl */
 			dp->desync_ttl = (uint8_t)atoi(optarg);
 			break;
-		case 17: /* dpi-desync-ttl6 */
+		case 18: /* dpi-desync-ttl6 */
 			dp->desync_ttl6 = (uint8_t)atoi(optarg);
 			break;
-		case 18: /* dpi-desync-autottl */
+		case 19: /* dpi-desync-autottl */
 			if (!parse_autottl(optarg, &dp->desync_autottl))
 			{
 				DLOG_ERR("dpi-desync-autottl value error\n");
 				exit_clean(1);
 			}
 			break;
-		case 19: /* dpi-desync-autottl6 */
+		case 20: /* dpi-desync-autottl6 */
 			if (!parse_autottl(optarg, &dp->desync_autottl6))
 			{
 				DLOG_ERR("dpi-desync-autottl6 value error\n");
 				exit_clean(1);
 			}
 			break;
-		case 20: /* dpi-desync-fooling */
+		case 21: /* dpi-desync-fooling */
 			{
 				char *e,*p = optarg;
 				while (p)
@@ -1543,17 +1560,17 @@ int main(int argc, char **argv)
 				}
 			}
 			break;
-		case 21: /* dpi-desync-repeats */
+		case 22: /* dpi-desync-repeats */
 			if (sscanf(optarg,"%u",&dp->desync_repeats)<1 || !dp->desync_repeats || dp->desync_repeats>20)
 			{
 				DLOG_ERR("dpi-desync-repeats must be within 1..20\n");
 				exit_clean(1);
 			}
 			break;
-		case 22: /* dpi-desync-skip-nosni */
+		case 23: /* dpi-desync-skip-nosni */
 			dp->desync_skip_nosni = !optarg || atoi(optarg);
 			break;
-		case 23: /* dpi-desync-split-pos */
+		case 24: /* dpi-desync-split-pos */
 			{
 				int ct;
 				if (!parse_split_pos_list(optarg,dp->splits+dp->split_count,MAX_SPLITS-dp->split_count,&ct))
@@ -1564,7 +1581,7 @@ int main(int argc, char **argv)
 				dp->split_count += ct;
 			}
 			break;
-		case 24: /* dpi-desync-split-http-req */
+		case 25: /* dpi-desync-split-http-req */
 			// obsolete arg
 			DLOG_CONDUP("WARNING ! --dpi-desync-split-http-req is deprecated. use --dpi-desync-split-pos with markers.\n",MAX_SPLITS);
 			if (dp->split_count>=MAX_SPLITS)
@@ -1579,7 +1596,7 @@ int main(int argc, char **argv)
 			}
 			dp->split_count++;
 			break;
-		case 25: /* dpi-desync-split-tls */
+		case 26: /* dpi-desync-split-tls */
 			// obsolete arg
 			DLOG_CONDUP("WARNING ! --dpi-desync-split-tls is deprecated. use --dpi-desync-split-pos with markers.\n",MAX_SPLITS);
 			if (dp->split_count>=MAX_SPLITS)
@@ -1594,7 +1611,7 @@ int main(int argc, char **argv)
 			}
 			dp->split_count++;
 			break;
-		case 26: /* dpi-desync-split-seqovl */
+		case 27: /* dpi-desync-split-seqovl */
 			if (!strcmp(optarg,"0"))
 			{
 				// allow zero = disable seqovl
@@ -1607,7 +1624,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 27: /* dpi-desync-split-seqovl-pattern */
+		case 28: /* dpi-desync-split-seqovl-pattern */
 			{
 				char buf[sizeof(dp->seqovl_pattern)];
 				size_t sz=sizeof(buf);
@@ -1615,7 +1632,7 @@ int main(int argc, char **argv)
 				fill_pattern(dp->seqovl_pattern,sizeof(dp->seqovl_pattern),buf,sz);
 			}
 			break;
-		case 28: /* dpi-desync-ipfrag-pos-tcp */
+		case 29: /* dpi-desync-ipfrag-pos-tcp */
 			if (sscanf(optarg,"%u",&dp->desync_ipfrag_pos_tcp)<1 || dp->desync_ipfrag_pos_tcp<1 || dp->desync_ipfrag_pos_tcp>DPI_DESYNC_MAX_FAKE_LEN)
 			{
 				DLOG_ERR("dpi-desync-ipfrag-pos-tcp must be within 1..%u range\n",DPI_DESYNC_MAX_FAKE_LEN);
@@ -1627,7 +1644,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 29: /* dpi-desync-ipfrag-pos-udp */
+		case 30: /* dpi-desync-ipfrag-pos-udp */
 			if (sscanf(optarg,"%u",&dp->desync_ipfrag_pos_udp)<1 || dp->desync_ipfrag_pos_udp<1 || dp->desync_ipfrag_pos_udp>DPI_DESYNC_MAX_FAKE_LEN)
 			{
 				DLOG_ERR("dpi-desync-ipfrag-pos-udp must be within 1..%u range\n",DPI_DESYNC_MAX_FAKE_LEN);
@@ -1639,63 +1656,63 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 30: /* dpi-desync-badseq-increments */
+		case 31: /* dpi-desync-badseq-increments */
 			if (!parse_badseq_increment(optarg,&dp->desync_badseq_increment))
 			{
 				DLOG_ERR("dpi-desync-badseq-increment should be signed decimal or signed 0xHEX\n");
 				exit_clean(1);
 			}
 			break;
-		case 31: /* dpi-desync-badack-increment */
+		case 32: /* dpi-desync-badack-increment */
 			if (!parse_badseq_increment(optarg,&dp->desync_badseq_ack_increment))
 			{
 				DLOG_ERR("dpi-desync-badack-increment should be signed decimal or signed 0xHEX\n");
 				exit_clean(1);
 			}
 			break;
-		case 32: /* dpi-desync-any-protocol */
+		case 33: /* dpi-desync-any-protocol */
 			dp->desync_any_proto = !optarg || atoi(optarg);
 			break;
-		case 33: /* dpi-desync-fake-http */
+		case 34: /* dpi-desync-fake-http */
 			dp->fake_http_size = sizeof(dp->fake_http);
 			load_file_or_exit(optarg,dp->fake_http,&dp->fake_http_size);
 			break;
-		case 34: /* dpi-desync-fake-tls */
+		case 35: /* dpi-desync-fake-tls */
 			dp->fake_tls_size = sizeof(dp->fake_tls);
 			load_file_or_exit(optarg,dp->fake_tls,&dp->fake_tls_size);
 			break;
-		case 35: /* dpi-desync-fake-unknown */
+		case 36: /* dpi-desync-fake-unknown */
 			dp->fake_unknown_size = sizeof(dp->fake_unknown);
 			load_file_or_exit(optarg,dp->fake_unknown,&dp->fake_unknown_size);
 			break;
-		case 36: /* dpi-desync-fake-syndata */
+		case 37: /* dpi-desync-fake-syndata */
 			dp->fake_syndata_size = sizeof(dp->fake_syndata);
 			load_file_or_exit(optarg,dp->fake_syndata,&dp->fake_syndata_size);
 			break;
-		case 37: /* dpi-desync-fake-quic */
+		case 38: /* dpi-desync-fake-quic */
 			dp->fake_quic_size = sizeof(dp->fake_quic);
 			load_file_or_exit(optarg,dp->fake_quic,&dp->fake_quic_size);
 			break;
-		case 38: /* dpi-desync-fake-wireguard */
+		case 39: /* dpi-desync-fake-wireguard */
 			dp->fake_wg_size = sizeof(dp->fake_wg);
 			load_file_or_exit(optarg,dp->fake_wg,&dp->fake_wg_size);
 			break;
-		case 39: /* dpi-desync-fake-dht */
+		case 40: /* dpi-desync-fake-dht */
 			dp->fake_dht_size = sizeof(dp->fake_dht);
 			load_file_or_exit(optarg,dp->fake_dht,&dp->fake_dht_size);
 			break;
-		case 40: /* dpi-desync-fake-unknown-udp */
+		case 41: /* dpi-desync-fake-unknown-udp */
 			dp->fake_unknown_udp_size = sizeof(dp->fake_unknown_udp);
 			load_file_or_exit(optarg,dp->fake_unknown_udp,&dp->fake_unknown_udp_size);
 			break;
-		case 41: /* dpi-desync-udplen-increment */
+		case 42: /* dpi-desync-udplen-increment */
 			if (sscanf(optarg,"%d",&dp->udplen_increment)<1 || dp->udplen_increment>0x7FFF || dp->udplen_increment<-0x8000)
 			{
 				DLOG_ERR("dpi-desync-udplen-increment must be integer within -32768..32767 range\n");
 				exit_clean(1);
 			}
 			break;
-		case 42: /* dpi-desync-udplen-pattern */
+		case 43: /* dpi-desync-udplen-pattern */
 			{
 				char buf[sizeof(dp->udplen_pattern)];
 				size_t sz=sizeof(buf);
@@ -1703,35 +1720,35 @@ int main(int argc, char **argv)
 				fill_pattern(dp->udplen_pattern,sizeof(dp->udplen_pattern),buf,sz);
 			}
 			break;
-		case 43: /* desync-cutoff */
+		case 44: /* desync-cutoff */
 			if (!parse_cutoff(optarg, &dp->desync_cutoff, &dp->desync_cutoff_mode))
 			{
 				DLOG_ERR("invalid desync-cutoff value\n");
 				exit_clean(1);
 			}
 			break;
-		case 44: /* desync-start */
+		case 45: /* desync-start */
 			if (!parse_cutoff(optarg, &dp->desync_start, &dp->desync_start_mode))
 			{
 				DLOG_ERR("invalid desync-start value\n");
 				exit_clean(1);
 			}
 			break;
-		case 45: /* hostlist */
+		case 46: /* hostlist */
 			if (!RegisterHostlist(dp, false, optarg))
 			{
 				DLOG_ERR("failed to register hostlist '%s'\n", optarg);
 				exit_clean(1);
 			}
 			break;
-		case 46: /* hostlist-exclude */
+		case 47: /* hostlist-exclude */
 			if (!RegisterHostlist(dp, true, optarg))
 			{
 				DLOG_ERR("failed to register hostlist '%s'\n", optarg);
 				exit_clean(1);
 			}
 			break;
-		case 47: /* hostlist-auto */
+		case 48: /* hostlist-auto */
 			if (dp->hostlist_auto)
 			{
 				DLOG_ERR("only one auto hostlist per profile is supported\n");
@@ -1758,7 +1775,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 48: /* hostlist-auto-fail-threshold */
+		case 49: /* hostlist-auto-fail-threshold */
 			dp->hostlist_auto_fail_threshold = (uint8_t)atoi(optarg);
 			if (dp->hostlist_auto_fail_threshold<1 || dp->hostlist_auto_fail_threshold>20)
 			{
@@ -1766,7 +1783,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 49: /* hostlist-auto-fail-time */
+		case 50: /* hostlist-auto-fail-time */
 			dp->hostlist_auto_fail_time = (uint8_t)atoi(optarg);
 			if (dp->hostlist_auto_fail_time<1)
 			{
@@ -1774,7 +1791,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 50: /* hostlist-auto-retrans-threshold */
+		case 51: /* hostlist-auto-retrans-threshold */
 			dp->hostlist_auto_retrans_threshold = (uint8_t)atoi(optarg);
 			if (dp->hostlist_auto_retrans_threshold<2 || dp->hostlist_auto_retrans_threshold>10)
 			{
@@ -1782,7 +1799,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 51: /* hostlist-auto-debug */
+		case 52: /* hostlist-auto-debug */
 			{
 				FILE *F = fopen(optarg,"a+t");
 				if (!F)
@@ -1796,7 +1813,16 @@ int main(int argc, char **argv)
 			}
 			break;
 
-		case 52: /* new */
+		case 53: /* new */
+			if (bSkip)
+			{
+				dp_clear(dp);
+				dp_init(dp);
+				dp->n = desync_profile_count;
+				bSkip = false;
+			}
+			else
+			{
 				if (!(dpl = dp_list_add(&params.desync_profiles)))
 				{
 					DLOG_ERR("desync_profile_add: out of memory\n");
@@ -1804,15 +1830,20 @@ int main(int argc, char **argv)
 				}
 				dp = &dpl->dp;
 				dp->n = ++desync_profile_count;
+			}
 			break;
-		case 53: /* filter-l3 */
+		case 54: /* skip */
+			bSkip = true;
+			break;
+
+		case 55: /* filter-l3 */
 			if (!wf_make_l3(optarg,&dp->filter_ipv4,&dp->filter_ipv6))
 			{
 				DLOG_ERR("bad value for --filter-l3\n");
 				exit_clean(1);
 			}
 			break;
-		case 54: /* filter-tcp */
+		case 56: /* filter-tcp */
 			if (!parse_pf_list(optarg,&dp->pf_tcp))
 			{
 				DLOG_ERR("Invalid port filter : %s\n",optarg);
@@ -1822,7 +1853,7 @@ int main(int argc, char **argv)
 			if (!port_filters_deny_if_empty(&dp->pf_udp))
 				exit_clean(1);
 			break;
-		case 55: /* filter-udp */
+		case 57: /* filter-udp */
 			if (!parse_pf_list(optarg,&dp->pf_udp))
 			{
 				DLOG_ERR("Invalid port filter : %s\n",optarg);
@@ -1832,21 +1863,21 @@ int main(int argc, char **argv)
 			if (!port_filters_deny_if_empty(&dp->pf_tcp))
 				exit_clean(1);
 			break;
-		case 56: /* filter-l7 */
+		case 58: /* filter-l7 */
 			if (!parse_l7_list(optarg,&dp->filter_l7))
 			{
 				DLOG_ERR("Invalid l7 filter : %s\n",optarg);
 				exit_clean(1);
 			}
 			break;
-		case 57: /* ipset */
+		case 59: /* ipset */
 			if (!RegisterIpset(dp, false, optarg))
 			{
 				DLOG_ERR("failed to register ipset '%s'\n", optarg);
 				exit_clean(1);
 			}
 			break;
-		case 58: /* ipset-exclude */
+		case 60: /* ipset-exclude */
 			if (!RegisterIpset(dp, true, optarg))
 			{
 				DLOG_ERR("failed to register ipset '%s'\n", optarg);
@@ -1857,28 +1888,28 @@ int main(int argc, char **argv)
 
 
 #ifdef __linux__
-		case 59: /* bind-fix4 */
+		case 61: /* bind-fix4 */
 			params.bind_fix4 = true;
 			break;
-		case 60: /* bind-fix6 */
+		case 62: /* bind-fix6 */
 			params.bind_fix6 = true;
 			break;
 #elif defined(__CYGWIN__)
-		case 59: /* wf-iface */
+		case 61: /* wf-iface */
 			if (!sscanf(optarg,"%u.%u",&IfIdx,&SubIfIdx))
 			{
 				DLOG_ERR("bad value for --wf-iface\n");
 				exit_clean(1);
 			}
 			break;
-		case 60: /* wf-l3 */
+		case 62: /* wf-l3 */
 			if (!wf_make_l3(optarg,&wf_ipv4,&wf_ipv6))
 			{
 				DLOG_ERR("bad value for --wf-l3\n");
 				exit_clean(1);
 			}
 			break;
-		case 61: /* wf-tcp */
+		case 63: /* wf-tcp */
 			hash_wf_tcp=hash_jen(optarg,strlen(optarg));
 			if (!wf_make_pf(optarg,"tcp","SrcPort",wf_pf_tcp_src,sizeof(wf_pf_tcp_src)) ||
 				!wf_make_pf(optarg,"tcp","DstPort",wf_pf_tcp_dst,sizeof(wf_pf_tcp_dst)))
@@ -1887,7 +1918,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 62: /* wf-udp */
+		case 64: /* wf-udp */
 			hash_wf_udp=hash_jen(optarg,strlen(optarg));
 			if (!wf_make_pf(optarg,"udp","SrcPort",wf_pf_udp_src,sizeof(wf_pf_udp_src)) ||
 				!wf_make_pf(optarg,"udp","DstPort",wf_pf_udp_dst,sizeof(wf_pf_udp_dst)))
@@ -1896,7 +1927,7 @@ int main(int argc, char **argv)
 				exit_clean(1);
 			}
 			break;
-		case 63: /* wf-raw */
+		case 65: /* wf-raw */
 			hash_wf_raw=hash_jen(optarg,strlen(optarg));
 			if (optarg[0]=='@')
 			{
@@ -1910,11 +1941,11 @@ int main(int argc, char **argv)
 				windivert_filter[sizeof(windivert_filter) - 1] = '\0';
 			}
 			break;
-		case 64: /* wf-save */
+		case 66: /* wf-save */
 			strncpy(wf_save_file, optarg, sizeof(wf_save_file));
 			wf_save_file[sizeof(wf_save_file) - 1] = '\0';
 			break;
-		case 65: /* ssid-filter */
+		case 67: /* ssid-filter */
 			hash_ssid_filter=hash_jen(optarg,strlen(optarg));
 			{
 				char *e,*p = optarg;
@@ -1932,7 +1963,7 @@ int main(int argc, char **argv)
 				}
 			}
 			break;
-		case 66: /* nlm-filter */
+		case 68: /* nlm-filter */
 			hash_nlm_filter=hash_jen(optarg,strlen(optarg));
 			{
 				char *e,*p = optarg;
@@ -1950,7 +1981,7 @@ int main(int argc, char **argv)
 				}
 			}
 			break;
-		case 67: /* nlm-list */
+		case 69: /* nlm-list */
 			if (!nlm_list(optarg && !strcmp(optarg,"all")))
 			{
 				DLOG_ERR("could not get list of NLM networks\n");
@@ -1961,6 +1992,12 @@ int main(int argc, char **argv)
 #endif
 		}
 	}
+	if (bSkip)
+	{
+		LIST_REMOVE(dpl,next);
+		dp_entry_destroy(dpl);
+		desync_profile_count--;
+	}
 
 	// do not need args from file anymore
 #if !defined( __OpenBSD__) && !defined(__ANDROID__)

nfq/params.c

@@ -170,45 +170,49 @@ void hexdump_limited_dlog(const uint8_t *data, size_t size, size_t limit)
 	if (bcut) DLOG(" ...");
 }
 
+void dp_init(struct desync_profile *dp)
+{
+	LIST_INIT(&dp->hl_collection);
+	LIST_INIT(&dp->hl_collection_exclude);
+	LIST_INIT(&dp->ips_collection);
+	LIST_INIT(&dp->ips_collection_exclude);
+	LIST_INIT(&dp->pf_tcp);
+	LIST_INIT(&dp->pf_udp);
+
+	memcpy(dp->hostspell, "host", 4); // default hostspell
+	dp->desync_skip_nosni = true;
+	dp->desync_ipfrag_pos_udp = IPFRAG_UDP_DEFAULT;
+	dp->desync_ipfrag_pos_tcp = IPFRAG_TCP_DEFAULT;
+	dp->desync_repeats = 1;
+	dp->fake_tls_size = sizeof(fake_tls_clienthello_default);
+	memcpy(dp->fake_tls,fake_tls_clienthello_default,dp->fake_tls_size);
+	randomize_default_tls_payload(dp->fake_tls);
+	dp->fake_http_size = strlen(fake_http_request_default);
+	memcpy(dp->fake_http,fake_http_request_default,dp->fake_http_size);
+	dp->fake_quic_size = 620; // must be 601+ for TSPU hack
+	dp->fake_quic[0] = 0x40; // russian TSPU QUIC short header fake
+	dp->fake_wg_size = 64;
+	dp->fake_dht_size = 64;
+	dp->fake_unknown_size = 256;
+	dp->fake_syndata_size = 16;
+	dp->fake_unknown_udp_size = 64;
+	dp->wscale=-1; // default - dont change scale factor (client)
+	dp->desync_ttl6 = 0xFF; // unused
+	dp->desync_badseq_increment = BADSEQ_INCREMENT_DEFAULT;
+	dp->desync_badseq_ack_increment = BADSEQ_ACK_INCREMENT_DEFAULT;
+	dp->wssize_cutoff_mode = dp->desync_start_mode = dp->desync_cutoff_mode = 'n'; // packet number by default
+	dp->udplen_increment = UDPLEN_INCREMENT_DEFAULT;
+	dp->hostlist_auto_fail_threshold = HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT;
+	dp->hostlist_auto_fail_time = HOSTLIST_AUTO_FAIL_TIME_DEFAULT;
+	dp->hostlist_auto_retrans_threshold = HOSTLIST_AUTO_RETRANS_THRESHOLD_DEFAULT;
+	dp->filter_ipv4 = dp->filter_ipv6 = true;
+}
 struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head)
 {
 	struct desync_profile_list *entry = calloc(1,sizeof(struct desync_profile_list));
 	if (!entry) return NULL;
 	
-	LIST_INIT(&entry->dp.hl_collection);
+	dp_init(&entry->dp);
-	LIST_INIT(&entry->dp.hl_collection_exclude);
-	LIST_INIT(&entry->dp.ips_collection);
-	LIST_INIT(&entry->dp.ips_collection_exclude);
-	LIST_INIT(&entry->dp.pf_tcp);
-	LIST_INIT(&entry->dp.pf_udp);
-
-	memcpy(entry->dp.hostspell, "host", 4); // default hostspell
-	entry->dp.desync_skip_nosni = true;
-	entry->dp.desync_ipfrag_pos_udp = IPFRAG_UDP_DEFAULT;
-	entry->dp.desync_ipfrag_pos_tcp = IPFRAG_TCP_DEFAULT;
-	entry->dp.desync_repeats = 1;
-	entry->dp.fake_tls_size = sizeof(fake_tls_clienthello_default);
-	memcpy(entry->dp.fake_tls,fake_tls_clienthello_default,entry->dp.fake_tls_size);
-	randomize_default_tls_payload(entry->dp.fake_tls);
-	entry->dp.fake_http_size = strlen(fake_http_request_default);
-	memcpy(entry->dp.fake_http,fake_http_request_default,entry->dp.fake_http_size);
-	entry->dp.fake_quic_size = 620; // must be 601+ for TSPU hack
-	entry->dp.fake_quic[0] = 0x40; // russian TSPU QUIC short header fake
-	entry->dp.fake_wg_size = 64;
-	entry->dp.fake_dht_size = 64;
-	entry->dp.fake_unknown_size = 256;
-	entry->dp.fake_syndata_size = 16;
-	entry->dp.fake_unknown_udp_size = 64;
-	entry->dp.wscale=-1; // default - dont change scale factor (client)
-	entry->dp.desync_ttl6 = 0xFF; // unused
-	entry->dp.desync_badseq_increment = BADSEQ_INCREMENT_DEFAULT;
-	entry->dp.desync_badseq_ack_increment = BADSEQ_ACK_INCREMENT_DEFAULT;
-	entry->dp.wssize_cutoff_mode = entry->dp.desync_start_mode = entry->dp.desync_cutoff_mode = 'n'; // packet number by default
-	entry->dp.udplen_increment = UDPLEN_INCREMENT_DEFAULT;
-	entry->dp.hostlist_auto_fail_threshold = HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT;
-	entry->dp.hostlist_auto_fail_time = HOSTLIST_AUTO_FAIL_TIME_DEFAULT;
-	entry->dp.hostlist_auto_retrans_threshold = HOSTLIST_AUTO_RETRANS_THRESHOLD_DEFAULT;
-	entry->dp.filter_ipv4 = entry->dp.filter_ipv6 = true;
 
 	// add to the tail
 	struct desync_profile_list *dpn,*dpl=LIST_FIRST(&params.desync_profiles);
@@ -222,15 +226,24 @@ struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head)
 
 	return entry;
 }
-static void dp_entry_destroy(struct desync_profile_list *entry)
+static void dp_clear_dynamic(struct desync_profile *dp)
 {
-	hostlist_collection_destroy(&entry->dp.hl_collection);
+	hostlist_collection_destroy(&dp->hl_collection);
-	hostlist_collection_destroy(&entry->dp.hl_collection_exclude);
+	hostlist_collection_destroy(&dp->hl_collection_exclude);
-	ipset_collection_destroy(&entry->dp.ips_collection);
+	ipset_collection_destroy(&dp->ips_collection);
-	ipset_collection_destroy(&entry->dp.ips_collection_exclude);
+	ipset_collection_destroy(&dp->ips_collection_exclude);
-	port_filters_destroy(&entry->dp.pf_tcp);
+	port_filters_destroy(&dp->pf_tcp);
-	port_filters_destroy(&entry->dp.pf_udp);
+	port_filters_destroy(&dp->pf_udp);
-	HostFailPoolDestroy(&entry->dp.hostlist_auto_fail_counters);
+	HostFailPoolDestroy(&dp->hostlist_auto_fail_counters);
+}
+void dp_clear(struct desync_profile *dp)
+{
+	dp_clear_dynamic(dp);
+	memset(dp,0,sizeof(*dp));
+}
+void dp_entry_destroy(struct desync_profile_list *entry)
+{
+	dp_clear_dynamic(&entry->dp);
 	free(entry);
 }
 void dp_list_destroy(struct desync_profile_list_head *head)

nfq/params.h

@@ -51,7 +51,7 @@ struct desync_profile
 	char wssize_cutoff_mode; // n - packets, d - data packets, s - relative sequence
 	unsigned int wssize_cutoff;
 
-	bool hostcase, hostnospace, domcase;
+	bool hostcase, hostnospace, domcase, methodeol;
 	char hostspell[4];
 	enum dpi_desync_mode desync_mode0,desync_mode,desync_mode2;
 	bool desync_retrans,desync_skip_nosni,desync_any_proto;
@@ -99,8 +99,11 @@ struct desync_profile_list {
 };
 LIST_HEAD(desync_profile_list_head, desync_profile_list);
 struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head);
+void dp_entry_destroy(struct desync_profile_list *entry);
 void dp_list_destroy(struct desync_profile_list_head *head);
 bool dp_list_have_autohostlist(struct desync_profile_list_head *head);
+void dp_init(struct desync_profile *dp);
+void dp_clear(struct desync_profile *dp);
 
 struct params_s
 {

tpws/params.c

@@ -155,22 +155,26 @@ void hexdump_limited_dlog(const uint8_t *data, size_t size, size_t limit)
 	if (bcut) VPRINT(" ...");
 }
 
+void dp_init(struct desync_profile *dp)
+{
+	LIST_INIT(&dp->hl_collection);
+	LIST_INIT(&dp->hl_collection_exclude);
+	LIST_INIT(&dp->ips_collection);
+	LIST_INIT(&dp->ips_collection_exclude);
+	LIST_INIT(&dp->pf_tcp);
+
+	dp->filter_ipv4 = dp->filter_ipv6 = true;
+	memcpy(dp->hostspell, "host", 4); // default hostspell
+	dp->hostlist_auto_fail_threshold = HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT;
+	dp->hostlist_auto_fail_time = HOSTLIST_AUTO_FAIL_TIME_DEFAULT;
+}
 
 struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head)
 {
 	struct desync_profile_list *entry = calloc(1,sizeof(struct desync_profile_list));
 	if (!entry) return NULL;
 
-	LIST_INIT(&entry->dp.hl_collection);
+	dp_init(&entry->dp);
-	LIST_INIT(&entry->dp.hl_collection_exclude);
-	LIST_INIT(&entry->dp.ips_collection);
-	LIST_INIT(&entry->dp.ips_collection_exclude);
-	LIST_INIT(&entry->dp.pf_tcp);
-
-	entry->dp.filter_ipv4 = entry->dp.filter_ipv6 = true;
-	memcpy(entry->dp.hostspell, "host", 4); // default hostspell
-	entry->dp.hostlist_auto_fail_threshold = HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT;
-	entry->dp.hostlist_auto_fail_time = HOSTLIST_AUTO_FAIL_TIME_DEFAULT;
 
 	// add to the tail
 	struct desync_profile_list *dpn,*dpl=LIST_FIRST(&params.desync_profiles);
@@ -184,14 +188,23 @@ struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head)
 
 	return entry;
 }
-static void dp_entry_destroy(struct desync_profile_list *entry)
+static void dp_clear_dynamic(struct desync_profile *dp)
 {
-	hostlist_collection_destroy(&entry->dp.hl_collection);
+	hostlist_collection_destroy(&dp->hl_collection);
-	hostlist_collection_destroy(&entry->dp.hl_collection_exclude);
+	hostlist_collection_destroy(&dp->hl_collection_exclude);
-	ipset_collection_destroy(&entry->dp.ips_collection);
+	ipset_collection_destroy(&dp->ips_collection);
-	ipset_collection_destroy(&entry->dp.ips_collection_exclude);
+	ipset_collection_destroy(&dp->ips_collection_exclude);
-	port_filters_destroy(&entry->dp.pf_tcp);
+	port_filters_destroy(&dp->pf_tcp);
-	HostFailPoolDestroy(&entry->dp.hostlist_auto_fail_counters);
+	HostFailPoolDestroy(&dp->hostlist_auto_fail_counters);
+}
+void dp_clear(struct desync_profile *dp)
+{
+	dp_clear_dynamic(dp);
+	memset(dp,0,sizeof(*dp));
+}
+void dp_entry_destroy(struct desync_profile_list *entry)
+{
+	dp_clear_dynamic(&entry->dp);
 	free(entry);
 }
 void dp_list_destroy(struct desync_profile_list_head *head)

tpws/params.h

@@ -83,7 +83,10 @@ struct desync_profile_list {
 };
 LIST_HEAD(desync_profile_list_head, desync_profile_list);
 struct desync_profile_list *dp_list_add(struct desync_profile_list_head *head);
+void dp_entry_destroy(struct desync_profile_list *entry);
 void dp_list_destroy(struct desync_profile_list_head *head);
+void dp_init(struct desync_profile *dp);
+void dp_clear(struct desync_profile *dp);
 
 struct params_s
 {

tpws/tpws.c

@@ -177,6 +177,7 @@ static void exithelp(void)
 		" --debug-level=0|1|2\t\t\t; specify debug level\n"
 		"\nMULTI-STRATEGY:\n"
 		" --new\t\t\t\t\t; begin new strategy\n"
+		" --skip\t\t\t\t\t; do not use this strategy\n"
 		" --filter-l3=ipv4|ipv6\t\t\t; L3 protocol filter. multiple comma separated values allowed.\n"
 		" --filter-tcp=[~]port1[-port2]|*\t; TCP port filter. ~ means negation. multiple comma separated values allowed.\n"
 		" --filter-l7=[http|tls|unknown]\t\t; L6-L7 protocol filter. multiple comma separated values allowed.\n"
@@ -524,6 +525,7 @@ void parse_params(int argc, char *argv[])
 {
 	int option_index = 0;
 	int v, i;
+	bool bSkip=false;
 
 	memset(&params, 0, sizeof(params));
 	params.maxconn = DEFAULT_MAX_CONN;
@@ -630,24 +632,25 @@ void parse_params(int argc, char *argv[])
 		{ "connect-bind-addr",required_argument,0,0 },// optidx=55
 
 		{ "new",no_argument,0,0 },				// optidx=56
-		{ "filter-l3",required_argument,0,0 },			// optidx=57
+		{ "skip",no_argument,0,0 },				// optidx=57
-		{ "filter-tcp",required_argument,0,0 },			// optidx=58
+		{ "filter-l3",required_argument,0,0 },			// optidx=58
-		{ "filter-l7",required_argument,0,0 },			// optidx=59
+		{ "filter-tcp",required_argument,0,0 },			// optidx=59
-		{ "ipset",required_argument,0,0 },			// optidx=60
+		{ "filter-l7",required_argument,0,0 },			// optidx=60
-		{ "ipset-exclude",required_argument,0,0 },		// optidx=61
+		{ "ipset",required_argument,0,0 },			// optidx=61
+		{ "ipset-exclude",required_argument,0,0 },		// optidx=62
 
 #if defined(__FreeBSD__)
 		{ "enable-pf",no_argument,0,0 },// optidx=62
 #elif defined(__APPLE__)
-		{ "local-tcp-user-timeout",required_argument,0,0 },	// optidx=62
+		{ "local-tcp-user-timeout",required_argument,0,0 },	// optidx=63
-		{ "remote-tcp-user-timeout",required_argument,0,0 },	// optidx=63
+		{ "remote-tcp-user-timeout",required_argument,0,0 },	// optidx=64
 #elif defined(__linux__)
-		{ "local-tcp-user-timeout",required_argument,0,0 },	// optidx=62
+		{ "local-tcp-user-timeout",required_argument,0,0 },	// optidx=63
-		{ "remote-tcp-user-timeout",required_argument,0,0 },	// optidx=63
+		{ "remote-tcp-user-timeout",required_argument,0,0 },	// optidx=64
-		{ "mss",required_argument,0,0 },			// optidx=64
+		{ "mss",required_argument,0,0 },			// optidx=65
-		{ "fix-seg",optional_argument,0,0 },			// optidx=65
+		{ "fix-seg",optional_argument,0,0 },			// optidx=66
 #ifdef SPLICE_PRESENT
-		{ "nosplice",no_argument,0,0 },				// optidx=66
+		{ "nosplice",no_argument,0,0 },				// optidx=67
 #endif
 #endif
 		{ "hostlist-auto-retrans-threshold",optional_argument,0,0}, // ignored. for nfqws command line compatibility
@@ -1160,6 +1163,15 @@ void parse_params(int argc, char *argv[])
 
 
 		case 56: /* new */
+			if (bSkip)
+			{
+				dp_clear(dp);
+				dp_init(dp);
+				dp->n = desync_profile_count;
+				bSkip = false;
+			}
+			else
+			{
 				if (!(dpl = dp_list_add(&params.desync_profiles)))
 				{
 					DLOG_ERR("desync_profile_add: out of memory\n");
@@ -1167,29 +1179,33 @@ void parse_params(int argc, char *argv[])
 				}
 				dp = &dpl->dp;
 				dp->n = ++desync_profile_count;
+			}
 			break;
-		case 57: /* filter-l3 */
+		case 57: /* skip */
+			bSkip = true;
+			break;
+		case 58: /* filter-l3 */
 			if (!wf_make_l3(optarg,&dp->filter_ipv4,&dp->filter_ipv6))
 			{
 				DLOG_ERR("bad value for --filter-l3\n");
 				exit_clean(1);
 			}
 			break;
-		case 58: /* filter-tcp */
+		case 59: /* filter-tcp */
 			if (!parse_pf_list(optarg,&dp->pf_tcp))
 			{
 				DLOG_ERR("Invalid port filter : %s\n",optarg);
 				exit_clean(1);
 			}
 			break;
-		case 59: /* filter-l7 */
+		case 60: /* filter-l7 */
 			if (!parse_l7_list(optarg,&dp->filter_l7))
 			{
 				DLOG_ERR("Invalid l7 filter : %s\n",optarg);
 				exit_clean(1);
 			}
 			break;
-		case 60: /* ipset */
+		case 61: /* ipset */
 			if (!RegisterIpset(dp, false, optarg))
 			{
 				DLOG_ERR("failed to register ipset '%s'\n", optarg);
@@ -1197,7 +1213,7 @@ void parse_params(int argc, char *argv[])
 			}
 			params.tamper = true;
 			break;
-		case 61: /* ipset-exclude */
+		case 62: /* ipset-exclude */
 			if (!RegisterIpset(dp, true, optarg))
 			{
 				DLOG_ERR("failed to register ipset '%s'\n", optarg);
@@ -1207,11 +1223,11 @@ void parse_params(int argc, char *argv[])
 			break;
 
 #if defined(__FreeBSD__)
-		case 62: /* enable-pf */
+		case 63: /* enable-pf */
 			params.pf_enable = true;
 			break;
 #elif defined(__linux__) || defined(__APPLE__)
-		case 62: /* local-tcp-user-timeout */
+		case 63: /* local-tcp-user-timeout */
 			params.tcp_user_timeout_local = atoi(optarg);
 			if (params.tcp_user_timeout_local<0 || params.tcp_user_timeout_local>86400)
 			{
@@ -1219,7 +1235,7 @@ void parse_params(int argc, char *argv[])
 				exit_clean(1);
 			}
 			break;
-		case 63: /* remote-tcp-user-timeout */
+		case 64: /* remote-tcp-user-timeout */
 			params.tcp_user_timeout_remote = atoi(optarg);
 			if (params.tcp_user_timeout_remote<0 || params.tcp_user_timeout_remote>86400)
 			{
@@ -1230,7 +1246,7 @@ void parse_params(int argc, char *argv[])
 #endif
 
 #if defined(__linux__)
-		case 64: /* mss */
+		case 65: /* mss */
 			// this option does not work in any BSD and MacOS. OS may accept but it changes nothing
 			dp->mss = atoi(optarg);
 			if (dp->mss<88 || dp->mss>32767)
@@ -1239,7 +1255,7 @@ void parse_params(int argc, char *argv[])
 				exit_clean(1);
 			}
 			break;
-		case 65: /* fix-seg */
+		case 66: /* fix-seg */
 			if (!params.fix_seg_avail)
 			{
 				DLOG_ERR("--fix-seg is supported since kernel 4.6\n");
@@ -1259,13 +1275,20 @@ void parse_params(int argc, char *argv[])
 				params.fix_seg = FIX_SEG_DEFAULT_MAX_WAIT;
 			break;
 #ifdef SPLICE_PRESENT
-		case 66: /* nosplice */
+		case 67: /* nosplice */
 			params.nosplice = true;
 			break;
 #endif
 #endif
 		}
 	}
+	if (bSkip)
+	{
+		LIST_REMOVE(dpl,next);
+		dp_entry_destroy(dpl);
+		desync_profile_count--;
+	}
+
 	if (!params.bind_wait_only && !params.port)
 	{
 		DLOG_ERR("Need port number\n");

tpws/tpws_conn.c

@@ -485,7 +485,7 @@ static bool connect_remote_conn(tproxy_conn_t *conn)
 
 	apply_desync_profile(&conn->track, (struct sockaddr *)&conn->dest);
 
-	if (conn->track.dp)
+	if (conn->track.dp && conn->track.dp->mss)
 	{
 		mss = conn->track.dp->mss;
 		if (conn->track.dp->hostlist_auto)
@@ -836,7 +836,6 @@ static bool proxy_mode_connect_remote(tproxy_conn_t *conn, struct tailhead *conn
 		return false;
 	}
 
-
 	if (!(conn->partner = new_conn(remote_fd, true)))
 	{
 		close(remote_fd);