mirror of
https://github.com/bol-van/zapret.git
synced 2024-11-14 18:48:33 +05:00
796 lines
16 KiB
Bash
796 lines
16 KiB
Bash
readonly GET_LIST_PREFIX=/ipset/get_
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SYSTEMD_DIR=/lib/systemd
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[ -d "$SYSTEMD_DIR" ] || SYSTEMD_DIR=/usr/lib/systemd
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[ -d "$SYSTEMD_DIR" ] && SYSTEMD_SYSTEM_DIR="$SYSTEMD_DIR/system"
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INIT_SCRIPT=/etc/init.d/zapret
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exitp()
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{
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echo
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echo press enter to continue
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read A
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exit $1
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}
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extract_var_def()
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{
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# $1 - var name
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# this sed script parses single or multi line shell var assignments with optional ' or " enclosure
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sed -n \
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"/^$1=\"/ {
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:s1
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/\".*\"/ {
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p
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b
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}
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N
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t c1
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b s1
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:c1
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}
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/^$1='/ {
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:s2
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/'.*'/ {
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p
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b
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}
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N
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t c2
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b s2
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:c2
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}
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/^$1=/p
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"
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}
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replace_var_def()
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{
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# $1 - var name
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# $2 - new val
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# $3 - conf file
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# this sed script replaces single or multi line shell var assignments with optional ' or " enclosure
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local repl
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if [ -z "$2" ]; then
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repl="#$1="
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elif contains "$2" " "; then
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repl="$1=\"$2\""
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else
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repl="$1=$2"
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fi
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local script=\
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"/^#*[[:space:]]*$1=\"/ {
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:s1
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/\".*\"/ {
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c\\
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$repl
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b
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}
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N
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t c1
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b s1
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:c1
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}
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/^#*[[:space:]]*$1='/ {
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:s2
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/'.*'/ {
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c\\
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$repl
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b
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}
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N
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t c2
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b s2
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:c2
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}
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/^#*[[:space:]]*$1=/c\\
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$repl"
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# there's incompatibility with -i option on MacOS/BSD and busybox/GNU
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if [ "$UNAME" = "Linux" ]; then
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sed -i -e "$script" "$3"
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else
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sed -i '' -e "$script" "$3"
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fi
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}
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parse_var_checked()
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{
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# $1 - file name
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# $2 - var name
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local tmp="/tmp/zvar-pid-$$.sh"
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local v
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cat "$1" | extract_var_def "$2" >"$tmp"
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. "$tmp"
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rm -f "$tmp"
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eval v="\$$2"
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# trim
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v="$(echo "$v" | trim)"
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eval $2=\""$v"\"
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}
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parse_vars_checked()
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{
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# $1 - file name
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# $2,$3,... - var names
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local f="$1"
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shift
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while [ -n "$1" ]; do
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parse_var_checked "$f" $1
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shift
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done
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}
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edit_file()
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{
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# $1 - file name
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local ed="$EDITOR"
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[ -n "$ed" ] || {
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for e in mcedit nano vim vi; do
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exists "$e" && {
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ed="$e"
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break
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}
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done
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}
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[ -n "$ed" ] && "$ed" "$1"
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}
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echo_var()
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{
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local v
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eval v="\$$1"
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if find_str_in_list $1 "$EDITVAR_NEWLINE_VARS"; then
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echo "$1=\""
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echo "$v\"" | sed "s/$EDITVAR_NEWLINE_DELIMETER /$EDITVAR_NEWLINE_DELIMETER\n/g"
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else
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if contains "$v" " "; then
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echo $1=\"$v\"
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else
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echo $1=$v
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fi
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fi
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}
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edit_vars()
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{
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# $1,$2,... - var names
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local n=1 var tmp="/tmp/zvars-pid-$$.txt"
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rm -f "$tmp"
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while : ; do
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eval var="\${$n}"
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[ -n "$var" ] || break
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echo_var $var >> "$tmp"
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n=$(($n+1))
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done
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edit_file "$tmp" && parse_vars_checked "$tmp" "$@"
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rm -f "$tmp"
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}
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list_vars()
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{
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while [ -n "$1" ] ; do
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echo_var $1
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shift
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done
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}
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openrc_test()
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{
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exists rc-update || return 1
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# some systems do not usse openrc-init but launch openrc from inittab
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[ "$INIT" = "openrc-init" ] || grep -qE "sysinit.*openrc" /etc/inittab 2>/dev/null
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}
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check_system()
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{
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# $1 - nonempty = do not fail on unknown rc system
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echo \* checking system
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SYSTEM=
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SUBSYS=
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SYSTEMCTL=$(whichq systemctl)
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get_fwtype
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OPENWRT_FW3=
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local info
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UNAME=$(uname)
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if [ "$UNAME" = "Linux" ]; then
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# do not use 'exe' because it requires root
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local INIT="$(sed 's/\x0/\n/g' /proc/1/cmdline | head -n 1)"
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[ -L "$INIT" ] && INIT=$(readlink "$INIT")
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INIT="$(basename "$INIT")"
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# some distros include systemctl without systemd
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if [ -d "$SYSTEMD_DIR" ] && [ -x "$SYSTEMCTL" ] && [ "$INIT" = "systemd" ]; then
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SYSTEM=systemd
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elif [ -f "/etc/openwrt_release" ] && exists opkg && exists uci && [ "$INIT" = "procd" ] ; then
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{
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SYSTEM=openwrt
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if openwrt_fw3 ; then
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OPENWRT_FW3=1
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info="openwrt firewall uses fw3"
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if is_ipt_flow_offload_avail; then
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info="$info. hardware flow offloading requires iptables."
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else
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info="$info. flow offloading unavailable."
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fi
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elif openwrt_fw4; then
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info="openwrt firewall uses fw4. flow offloading requires nftables."
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fi
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}
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elif openrc_test; then
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SYSTEM=openrc
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else
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echo system is not either systemd, openrc or openwrt based
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echo easy installer can set up config settings but can\'t configure auto start
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echo you have to do it manually. check readme.txt for manual setup info.
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if [ -n "$1" ] || ask_yes_no N "do you want to continue"; then
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SYSTEM=linux
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else
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exitp 5
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fi
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fi
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linux_get_subsys
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elif [ "$UNAME" = "Darwin" ]; then
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SYSTEM=macos
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else
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echo easy installer only supports Linux and MacOS. check readme.txt for supported systems and manual setup info.
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exitp 5
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fi
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echo system is based on $SYSTEM
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[ -n "$info" ] && echo $info
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}
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get_free_space_mb()
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{
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df -m $PWD | awk '/[0-9]%/{print $(NF-2)}'
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}
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get_ram_kb()
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{
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grep MemTotal /proc/meminfo | awk '{print $2}'
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}
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get_ram_mb()
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{
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local R=$(get_ram_kb)
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echo $(($R/1024))
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}
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crontab_del()
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{
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exists crontab || return
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echo \* removing crontab entry
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CRONTMP=/tmp/cron.tmp
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crontab -l >$CRONTMP 2>/dev/null
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if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
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echo removing following entries from crontab :
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grep "$GET_LIST_PREFIX" $CRONTMP
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grep -v "$GET_LIST_PREFIX" $CRONTMP >$CRONTMP.2
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crontab $CRONTMP.2
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rm -f $CRONTMP.2
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fi
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rm -f $CRONTMP
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}
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crontab_del_quiet()
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{
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exists crontab || return
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CRONTMP=/tmp/cron.tmp
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crontab -l >$CRONTMP 2>/dev/null
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if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
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grep -v "$GET_LIST_PREFIX" $CRONTMP >$CRONTMP.2
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crontab $CRONTMP.2
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rm -f $CRONTMP.2
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fi
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rm -f $CRONTMP
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}
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crontab_add()
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{
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# $1 - hour min
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# $2 - hour max
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[ -x "$GET_LIST" ] && {
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echo \* adding crontab entry
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if exists crontab; then
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CRONTMP=/tmp/cron.tmp
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crontab -l >$CRONTMP 2>/dev/null
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if grep -q "$GET_LIST_PREFIX" $CRONTMP; then
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echo some entries already exist in crontab. check if this is corrent :
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grep "$GET_LIST_PREFIX" $CRONTMP
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else
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end_with_newline <"$CRONTMP" || echo >>"$CRONTMP"
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echo "$(random 0 59) $(random $1 $2) */2 * * $GET_LIST" >>$CRONTMP
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crontab $CRONTMP
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fi
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rm -f $CRONTMP
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else
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echo '!!! CRON IS ABSENT !!! LISTS AUTO UPDATE WILL NOT WORK !!!'
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fi
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}
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}
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cron_ensure_running()
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{
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# if no crontabs present in /etc/cron openwrt init script does not launch crond. this is default
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[ "$SYSTEM" = "openwrt" ] && {
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/etc/init.d/cron enable
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/etc/init.d/cron start
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}
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}
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service_start_systemd()
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{
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echo \* starting zapret service
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"$SYSTEMCTL" start zapret || {
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echo could not start zapret service
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exitp 30
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}
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}
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service_stop_systemd()
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{
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echo \* stopping zapret service
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"$SYSTEMCTL" daemon-reload
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"$SYSTEMCTL" disable zapret
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"$SYSTEMCTL" stop zapret
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}
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service_remove_systemd()
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{
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echo \* removing zapret service
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rm -f "$SYSTEMD_SYSTEM_DIR/zapret.service"
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"$SYSTEMCTL" daemon-reload
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}
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timer_remove_systemd()
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{
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echo \* removing zapret-list-update timer
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"$SYSTEMCTL" daemon-reload
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"$SYSTEMCTL" disable zapret-list-update.timer
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"$SYSTEMCTL" stop zapret-list-update.timer
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rm -f "$SYSTEMD_SYSTEM_DIR/zapret-list-update.service" "$SYSTEMD_SYSTEM_DIR/zapret-list-update.timer"
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"$SYSTEMCTL" daemon-reload
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}
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install_sysv_init()
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{
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# $1 - "0"=disable
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echo \* installing init script
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[ -x "$INIT_SCRIPT" ] && {
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"$INIT_SCRIPT" stop
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"$INIT_SCRIPT" disable
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}
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ln -fs "$INIT_SCRIPT_SRC" "$INIT_SCRIPT"
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[ "$1" != "0" ] && "$INIT_SCRIPT" enable
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}
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install_openrc_init()
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{
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# $1 - "0"=disable
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echo \* installing init script
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[ -x "$INIT_SCRIPT" ] && {
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"$INIT_SCRIPT" stop
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rc-update del zapret
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}
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ln -fs "$INIT_SCRIPT_SRC" "$INIT_SCRIPT"
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[ "$1" != "0" ] && rc-update add zapret
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}
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service_remove_openrc()
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{
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echo \* removing zapret service
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[ -x "$INIT_SCRIPT" ] && {
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rc-update del zapret
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"$INIT_SCRIPT" stop
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}
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rm -f "$INIT_SCRIPT"
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}
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service_start_sysv()
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{
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[ -x "$INIT_SCRIPT" ] && {
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echo \* starting zapret service
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"$INIT_SCRIPT" start || {
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echo could not start zapret service
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exitp 30
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}
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}
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}
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service_stop_sysv()
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{
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[ -x "$INIT_SCRIPT" ] && {
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echo \* stopping zapret service
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"$INIT_SCRIPT" stop
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}
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}
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service_remove_sysv()
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{
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echo \* removing zapret service
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[ -x "$INIT_SCRIPT" ] && {
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"$INIT_SCRIPT" disable
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"$INIT_SCRIPT" stop
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}
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rm -f "$INIT_SCRIPT"
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}
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check_kmod()
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{
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[ -f "/lib/modules/$(uname -r)/$1.ko" ]
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}
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check_package_exists_openwrt()
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{
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[ -n "$(opkg list $1)" ]
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}
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check_package_openwrt()
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{
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[ -n "$(opkg list-installed $1)" ] && return 0
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local what="$(opkg whatprovides $1 | tail -n +2 | head -n 1)"
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[ -n "$what" ] || return 1
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[ -n "$(opkg list-installed $what)" ]
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}
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check_packages_openwrt()
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{
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for pkg in $@; do
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check_package_openwrt $pkg || return
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done
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}
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install_openwrt_iface_hook()
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{
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echo \* installing ifup hook
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ln -fs "$OPENWRT_IFACE_HOOK" /etc/hotplug.d/iface
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}
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remove_openwrt_iface_hook()
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{
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echo \* removing ifup hook
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rm -f /etc/hotplug.d/iface/??-zapret
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}
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openwrt_fw_section_find()
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{
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# $1 - fw include postfix
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# echoes section number
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i=0
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while true
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do
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path=$(uci -q get firewall.@include[$i].path)
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[ -n "$path" ] || break
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[ "$path" = "$OPENWRT_FW_INCLUDE$1" ] && {
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echo $i
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return 0
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}
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i=$(($i+1))
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done
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return 1
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}
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openwrt_fw_section_del()
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{
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# $1 - fw include postfix
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local id="$(openwrt_fw_section_find $1)"
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[ -n "$id" ] && {
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uci delete firewall.@include[$id] && uci commit firewall
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rm -f "$OPENWRT_FW_INCLUDE$1"
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}
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}
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openwrt_fw_section_add()
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{
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openwrt_fw_section_find ||
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{
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uci add firewall include >/dev/null || return
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echo -1
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}
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}
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openwrt_fw_section_configure()
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{
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local id="$(openwrt_fw_section_add $1)"
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[ -z "$id" ] ||
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! uci set firewall.@include[$id].path="$OPENWRT_FW_INCLUDE" ||
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! uci set firewall.@include[$id].reload="1" ||
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! uci commit firewall &&
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{
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echo could not add firewall include
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exitp 50
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}
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}
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install_openwrt_firewall()
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{
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echo \* installing firewall script $1
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[ -n "MODE" ] || {
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echo should specify MODE in $ZAPRET_CONFIG
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exitp 7
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}
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echo "linking : $FW_SCRIPT_SRC => $OPENWRT_FW_INCLUDE"
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ln -fs "$FW_SCRIPT_SRC" "$OPENWRT_FW_INCLUDE"
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openwrt_fw_section_configure $1
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}
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restart_openwrt_firewall()
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{
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echo \* restarting firewall
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local FW=fw4
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[ -n "$OPENWRT_FW3" ] && FW=fw3
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$FW -q restart || {
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echo could not restart firewall $FW
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exitp 30
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}
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}
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remove_openwrt_firewall()
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{
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echo \* removing firewall script
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openwrt_fw_section_del
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# from old zapret versions. now we use single include
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openwrt_fw_section_del 6
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}
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clear_ipset()
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{
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echo "* clearing ipset(s)"
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# free some RAM
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"$IPSET_DIR/create_ipset.sh" clear
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}
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service_install_macos()
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{
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echo \* installing zapret service
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ln -fs "$ZAPRET_BASE/init.d/macos/zapret.plist" /Library/LaunchDaemons
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}
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service_start_macos()
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{
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echo \* starting zapret service
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"$INIT_SCRIPT_SRC" start
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}
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service_stop_macos()
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{
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echo \* stopping zapret service
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"$INIT_SCRIPT_SRC" stop
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}
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service_remove_macos()
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{
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echo \* removing zapret service
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rm -f /Library/LaunchDaemons/zapret.plist
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zapret_stop_daemons
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}
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remove_macos_firewall()
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{
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echo \* removing zapret PF hooks
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pf_anchors_clear
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pf_anchors_del
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pf_anchor_root_del
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pf_anchor_root_reload
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}
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sedi()
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{
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# MacOS doesnt support -i without parameter. busybox doesnt support -i with parameter.
|
|
# its not possible to put "sed -i ''" to a variable and then use it
|
|
if [ "$SYSTEM" = "macos" ]; then
|
|
sed -i '' "$@"
|
|
else
|
|
sed -i "$@"
|
|
fi
|
|
}
|
|
|
|
write_config_var()
|
|
{
|
|
# $1 - mode var
|
|
local M
|
|
eval M="\$$1"
|
|
# replace / => \/
|
|
#M=${M//\//\\\/}
|
|
M=$(echo $M | sed 's/\//\\\//g' | trim)
|
|
grep -q "^[[:space:]]*$1=\|^#*[[:space:]]*$1=" "$ZAPRET_CONFIG" || {
|
|
# var does not exist in config. add it
|
|
echo $1= >>"$ZAPRET_CONFIG"
|
|
}
|
|
replace_var_def $1 "$M" "$ZAPRET_CONFIG"
|
|
}
|
|
|
|
check_prerequisites_linux()
|
|
{
|
|
echo \* checking prerequisites
|
|
|
|
local s cmd PKGS UTILS req="curl curl"
|
|
case "$FWTYPE" in
|
|
iptables)
|
|
req="$req iptables iptables ip6tables iptables ipset ipset"
|
|
;;
|
|
nftables)
|
|
req="$req nft nftables"
|
|
;;
|
|
esac
|
|
|
|
PKGS=$(for s in $req; do echo $s; done |
|
|
while read cmd; do
|
|
read pkg
|
|
exists $cmd || echo $pkg
|
|
done | sort -u | xargs)
|
|
UTILS=$(for s in $req; do echo $s; done |
|
|
while read cmd; do
|
|
read pkg
|
|
echo $cmd
|
|
done | sort -u | xargs)
|
|
|
|
if [ -z "$PKGS" ] ; then
|
|
echo required utilities exist : $UTILS
|
|
else
|
|
echo \* installing prerequisites
|
|
|
|
echo packages required : $PKGS
|
|
|
|
APTGET=$(whichq apt-get)
|
|
YUM=$(whichq yum)
|
|
PACMAN=$(whichq pacman)
|
|
ZYPPER=$(whichq zypper)
|
|
EOPKG=$(whichq eopkg)
|
|
APK=$(whichq apk)
|
|
if [ -x "$APTGET" ] ; then
|
|
"$APTGET" update
|
|
"$APTGET" install -y --no-install-recommends $PKGS dnsutils || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
elif [ -x "$YUM" ] ; then
|
|
"$YUM" -y install $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
elif [ -x "$PACMAN" ] ; then
|
|
"$PACMAN" -Syy
|
|
"$PACMAN" --noconfirm -S $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
elif [ -x "$ZYPPER" ] ; then
|
|
"$ZYPPER" --non-interactive install $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
elif [ -x "$EOPKG" ] ; then
|
|
"$EOPKG" -y install $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
elif [ -x "$APK" ] ; then
|
|
"$APK" update
|
|
# for alpine
|
|
[ "$FWTYPE" = iptables ] && [ -n "$($APK list ip6tables)" ] && PKGS="$PKGS ip6tables"
|
|
"$APK" add $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
else
|
|
echo supported package manager not found
|
|
echo you must manually install : $UTILS
|
|
exitp 5
|
|
fi
|
|
fi
|
|
}
|
|
|
|
removable_pkgs_openwrt()
|
|
{
|
|
PKGS="iptables-mod-extra iptables-mod-nfqueue iptables-mod-filter iptables-mod-ipopt iptables-mod-conntrack-extra ip6tables-mod-nat ip6tables-extra kmod-nft-queue gzip coreutils-sort coreutils-sleep curl"
|
|
}
|
|
|
|
remove_extra_pkgs_openwrt()
|
|
{
|
|
local PKGS
|
|
echo \* remove dependencies
|
|
removable_pkgs_openwrt
|
|
echo these packages may have been installed by install_easy.sh : $PKGS
|
|
ask_yes_no N "do you want to remove them" && opkg remove --autoremove $PKGS
|
|
}
|
|
|
|
check_prerequisites_openwrt()
|
|
{
|
|
echo \* checking prerequisites
|
|
|
|
local PKGS="curl" UPD=0
|
|
|
|
case "$FWTYPE" in
|
|
iptables)
|
|
PKGS="$PKGS ipset iptables iptables-mod-extra iptables-mod-nfqueue iptables-mod-filter iptables-mod-ipopt iptables-mod-conntrack-extra"
|
|
[ "$DISABLE_IPV6" != "1" ] && PKGS="$PKGS ip6tables ip6tables-mod-nat ip6tables-extra"
|
|
;;
|
|
nftables)
|
|
PKGS="$PKGS nftables kmod-nft-nat kmod-nft-offload kmod-nft-queue"
|
|
;;
|
|
esac
|
|
|
|
if check_packages_openwrt $PKGS ; then
|
|
echo everything is present
|
|
else
|
|
echo \* installing prerequisites
|
|
|
|
opkg update
|
|
UPD=1
|
|
opkg install $PKGS || {
|
|
echo could not install prerequisites
|
|
exitp 6
|
|
}
|
|
fi
|
|
|
|
is_linked_to_busybox gzip && {
|
|
echo
|
|
echo your system uses default busybox gzip. its several times slower than GNU gzip.
|
|
echo ip/host list scripts will run much faster with GNU gzip
|
|
echo installer can install GNU gzip but it requires about 100 Kb space
|
|
if ask_yes_no N "do you want to install GNU gzip"; then
|
|
[ "$UPD" = "0" ] && {
|
|
opkg update
|
|
UPD=1
|
|
}
|
|
opkg install --force-overwrite gzip
|
|
fi
|
|
}
|
|
is_linked_to_busybox sort && {
|
|
echo
|
|
echo your system uses default busybox sort. its much slower and consumes much more RAM than GNU sort
|
|
echo ip/host list scripts will run much faster with GNU sort
|
|
echo installer can install GNU sort but it requires about 100 Kb space
|
|
if ask_yes_no N "do you want to install GNU sort"; then
|
|
[ "$UPD" = "0" ] && {
|
|
opkg update
|
|
UPD=1
|
|
}
|
|
opkg install --force-overwrite coreutils-sort
|
|
fi
|
|
}
|
|
[ "$FSLEEP" = 0 ] && is_linked_to_busybox sleep && {
|
|
echo
|
|
echo no methods of sub-second sleep were found.
|
|
echo if you want to speed up blockcheck install coreutils-sleep. it requires about 40 Kb space
|
|
if ask_yes_no N "do you want to install COREUTILS sleep"; then
|
|
[ "$UPD" = "0" ] && {
|
|
opkg update
|
|
UPD=1
|
|
}
|
|
opkg install --force-overwrite coreutils-sleep
|
|
fsleep_setup
|
|
fi
|
|
}
|
|
}
|
|
|
|
|
|
|
|
select_ipv6()
|
|
{
|
|
local T=N
|
|
|
|
[ "$DISABLE_IPV6" != '1' ] && T=Y
|
|
local old6=$DISABLE_IPV6
|
|
echo
|
|
if ask_yes_no $T "enable ipv6 support"; then
|
|
DISABLE_IPV6=0
|
|
else
|
|
DISABLE_IPV6=1
|
|
fi
|
|
[ "$old6" != "$DISABLE_IPV6" ] && write_config_var DISABLE_IPV6
|
|
}
|
|
select_fwtype()
|
|
{
|
|
echo
|
|
[ $(get_ram_mb) -le 400 ] && {
|
|
echo WARNING ! you are running a low RAM system
|
|
echo WARNING ! nft requires lots of RAM to load huge ip sets, much more than ipsets require
|
|
echo WARNING ! if you need large lists it may be necessary to fall back to iptables+ipset firewall
|
|
}
|
|
echo select firewall type :
|
|
ask_list FWTYPE "iptables nftables" "$FWTYPE" && write_config_var FWTYPE
|
|
}
|