nfqws: fix breaking tcp if ts fooling is enabled but no timestamps present

common/dialog.sh

@@ -37,8 +37,7 @@ ask_list()
 	local M_DEFAULT
 	eval M_DEFAULT="\$$1"
 	local M_ALL=$M_DEFAULT
-	local M=""
+	local M="" m
-	local m
 	
 	[ -n "$3" ] && { find_str_in_list "$M_DEFAULT" "$2" || M_DEFAULT="$3" ;}
 	
@@ -54,5 +53,5 @@ ask_list()
 	echo selected : $M
 	eval $1="\"$M\""
 	
-	[ "$M" != "$M_OLD" ]
+	[ "$M" != "$M_DEFAULT" ]
 }

common/installer.sh

@@ -256,7 +256,7 @@ check_system()
 
 get_free_space_mb()
 {
-    df -m $PWD | awk '/[0-9]%/{print $(NF-2)}'
+    df -m "$1" | awk '/[0-9]%/{print $(NF-2)}'
 }
 get_ram_kb()
 {
@@ -522,11 +522,6 @@ install_openwrt_firewall()
 {
 	echo \* installing firewall script $1
 	
-	[ -n "MODE" ] || {
-		echo should specify MODE in $ZAPRET_CONFIG
-		exitp 7
-	}
-	
 	echo "linking : $FW_SCRIPT_SRC => $OPENWRT_FW_INCLUDE"
 	ln -fs "$FW_SCRIPT_SRC" "$OPENWRT_FW_INCLUDE"
 	

common/ipt.sh

@@ -43,7 +43,7 @@ ipt6_add_del()
 }
 ipt6a_add_del()
 {
-	on_off_function ipt6 ipt6a_del "$@"
+	on_off_function ipt6a ipt6_del "$@"
 }
 
 is_ipt_flow_offload_avail()

docs/changes.txt

@@ -591,3 +591,7 @@ blockcheck: fix tpws test regression
 
 nfqws,tpws: memleak fix
 mdig: --eagain, --eagain-delay
+
+73.8
+
+nfqws: fix breaking tcp if ts fooling is enabled but no timestamps present

docs/readme.md

@@ -4,6 +4,12 @@ zapret является свободным и open source.
 Всякий, кто понуждает вас скачивать zapret только с его ресурса, требует удалить ссылки, видео, файлы, обосновывая эти требования авторскими правами, сам нарушает [лицензию](./LICENSE.txt).
 Однако, это не исключает [добровольные пожертвования](#поддержать-разработчика).
 
+# zapret2
+
+Эта версия zapret более не развивается и находится в режиме EOL (End-Of-Life). Никаких новых функций больше не будет. Только багфиксы.
+
+[Актуальная версия - zapret 2](https://github.com/bol-van/zapret2)
+
 # Multilanguage README
 
 [![en](https://img.shields.io/badge/lang-en-red.svg)](./readme.en.md)

install_easy.sh

@@ -323,7 +323,7 @@ ask_config_tmpdir()
 		echo /tmp in openwrt is tmpfs. on low RAM systems there may be not enough RAM to store downloaded files
 		echo default tmpfs has size of 50% RAM
 		echo "RAM  : $(get_ram_mb) Mb"
-		echo "DISK : $(get_free_space_mb) Mb"
+		echo "DISK : $(get_free_space_mb "$EXEDIR/tmp") Mb"
 		echo select temp file location
 		[ -z "$TMPDIR" ] && TMPDIR=/tmp
 		ask_list TMPDIR "/tmp $EXEDIR/tmp" && {

nfq/darkmagic.c

@@ -192,7 +192,7 @@ static uint16_t tcpopt_len(bool sack, bool mss, uint32_t fooling, const uint32_t
 	if (sack) t+=2;
 	if (mss) t+=4;
 	if (fooling & FOOL_MD5SIG) t+=18;
-	if ((fooling & FOOL_TS) || timestamps) t+=10;
+	if (timestamps) t+=10;
 	if (scale_factor!=SCALE_NONE) t+=3;
 	return (t+3)&~3;
 }

nfq/protocol.c

@@ -615,24 +615,18 @@ bool IsQUICCryptoHello(const uint8_t *data, size_t len, size_t *hello_offset, si
 uint8_t QUICDraftVersion(uint32_t version)
 {
 	/* IETF Draft versions */
-	if ((version >> 8) == 0xff0000) {
+	if ((version >> 8) == 0xff0000)
 		return (uint8_t)version;
-	}
 	/* Facebook mvfst, based on draft -22. */
-	if (version == 0xfaceb001) {
+	if (version == 0xfaceb001)
 		return 22;
-	}
 	/* Facebook mvfst, based on draft -27. */
-	if (version == 0xfaceb002 || version == 0xfaceb00e) {
+	if (version == 0xfaceb002 || version == 0xfaceb00e)
 		return 27;
-	}
 	/* GQUIC Q050, T050 and T051: they are not really based on any drafts,
 	 * but we must return a sensible value */
-	if (version == 0x51303530 ||
+	if (version == 0x51303530 || version == 0x54303530 || version == 0x54303531)
-		version == 0x54303530 ||
-		version == 0x54303531) {
 		return 27;
-	}
 	/* https://tools.ietf.org/html/draft-ietf-quic-transport-32#section-15
 	   "Versions that follow the pattern 0x?a?a?a?a are reserved for use in
 	   forcing version negotiation to be exercised"
@@ -640,19 +634,17 @@ uint8_t QUICDraftVersion(uint32_t version)
 	   used to select a proper salt (which depends on the version itself), but
 	   we don't have a real version here! Let's hope that we need to handle
 	   only latest drafts... */
-	if ((version & 0x0F0F0F0F) == 0x0a0a0a0a) {
+	if ((version & 0x0F0F0F0F) == 0x0a0a0a0a)
 		return 29;
-	}
 	/* QUIC (final?) constants for v1 are defined in draft-33, but draft-34 is the
 	   final draft version */
-	if (version == 0x00000001) {
+	if (version == 0x00000001)
 		return 34;
-	}
 	/* QUIC Version 2 */
 	/* TODO: for the time being use 100 as a number for V2 and let see how v2 drafts evolve */
-	if (version == 0x709A50C4) {
+	if ((version == 0x709A50C4) || (version == 0x6b3343cf))
 		return 100;
-	}
+
 	return 0;
 }
 
@@ -662,7 +654,7 @@ static bool is_quic_draft_max(uint32_t draft_version, uint8_t max_version)
 }
 static bool is_quic_v2(uint32_t version)
 {
-    return version == 0x6b3343cf;
+    return (version == 0x709A50C4) || (version == 0x6b3343cf);
 }
 
 static bool quic_hkdf_expand_label(const uint8_t *secret, uint8_t secret_len, const char *label, uint8_t *out, size_t out_len)
@@ -811,6 +803,7 @@ bool QUICDecryptInitial(const uint8_t *data, size_t data_len, uint8_t *clean, si
 	if ((pn_offset + tvb_get_size(data[pn_offset])) >= data_len) return false;
 	pn_offset += tvb_get_varint(data + pn_offset, &token_len);
 	pn_offset += token_len;
+	if (pn_offset >= data_len) return false;
 	if ((pn_offset + tvb_get_size(data[pn_offset])) >= data_len) return false;
 	pn_offset += tvb_get_varint(data + pn_offset, &payload_len);
 	if (payload_len<20 || (pn_offset + payload_len)>data_len) return false;