152 lines
8.0 KiB
Bash
Executable File
152 lines
8.0 KiB
Bash
Executable File
#!/bin/bash
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# PCA Phobos for macOS (no Network Extension, no paid Apple account):
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# wireguard-go (utun) -> 127.0.0.1:13255 wg-obfuscator -> server UDP, or via udptcp -> server TCP.
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# + optional "home" tunnel (plain WireGuard to the home Keenetic) for 192.168.88.0/24 when away.
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# Usage (root): phobos on | off | status | auto | udp | tcp | ru on|off | import <phobos://...>
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set -uo pipefail
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export PATH=/opt/homebrew/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
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D=/usr/local/pca-phobos
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RUN=/var/run/pca-phobos
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PROFILE=$D/profile.conf
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WGPORT=13255 TCPLOCAL=13256
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mkdir -p "$RUN"
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say() { echo "phobos: $*"; }
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need_root() { [ "$(id -u)" = 0 ] || { echo "run with sudo"; exit 1; }; }
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opt() { cat "$D/$1" 2>/dev/null || echo "$2"; } # opt transport auto | opt ru 1
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sec() { # sec <section> <key> -> value (no "= none")
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awk -v s="[$1]" -v k="$2" 'BEGIN{IGNORECASE=1}
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/^\[/{in_s=(tolower($0)==tolower(s)); next}
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in_s && !/^#/ { split($0,a,"="); key=a[1]; gsub(/[ \t]/,"",key);
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if (tolower(key)==tolower(k)) { v=substr($0,index($0,"=")+1); gsub(/^[ \t]+|[ \t]+$/,"",v);
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if (tolower(v)!="none") print v; exit } }' "$PROFILE"
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}
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tcp_port() { grep -E '^#.*pca-tcp' "$PROFILE" | sed 's/.*=[[:space:]]*//' | head -1; }
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target() { sec instance target; }
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host() { target | sed 's/:[0-9]*$//'; }
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gateway() { route -n get default 2>/dev/null | awk '/gateway:/{print $2; exit}'; }
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at_home() { [ "$(gateway)" = "$(opt home_gw 192.168.88.1)" ] && ipconfig getifaddr en0 2>/dev/null | grep -q '^192\.168\.88\.'; }
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utun() { cat "$RUN/utun" 2>/dev/null; }
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start_obfuscator() { # $1 = udp|tcp
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pkill -f "$D/bin/wg-obfuscator" 2>/dev/null; sleep 0.3
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local t; [ "$1" = tcp ] && t="127.0.0.1:$TCPLOCAL" || t="$(target)"
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{ echo "[instance]"; echo "source-if = 127.0.0.1"; echo "source-lport = $WGPORT"; echo "target = $t"
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awk 'BEGIN{IGNORECASE=1} /^\[/{i=(tolower($0)=="[instance]"); next}
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i && !/^#/ && !/^(source-if|source-lport|target|verbose)[ \t]*=/ && !/=[ \t]*none[ \t]*$/' "$PROFILE"
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echo "verbose = INFO"; } > "$RUN/obf.conf"
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nohup "$D/bin/wg-obfuscator" -c "$RUN/obf.conf" >> "$RUN/obf.log" 2>&1 &
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echo "$1" > "$RUN/transport"
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}
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dns_set() {
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: > "$RUN/dns.saved"
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networksetup -listallnetworkservices | tail -n +2 | grep -v '^\*' | while IFS= read -r s; do
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printf '%s\t%s\n' "$s" "$(networksetup -getdnsservers "$s" | tr '\n' ' ')" >> "$RUN/dns.saved"
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networksetup -setdnsservers "$s" 1.1.1.1 8.8.8.8 2>/dev/null
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done
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}
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dns_restore() {
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[ -f "$RUN/dns.saved" ] || return 0
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while IFS=$'\t' read -r s v; do
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case "$v" in *"aren't any"*|"") networksetup -setdnsservers "$s" empty ;; *) networksetup -setdnsservers "$s" $v ;; esac
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done < "$RUN/dns.saved"
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rm -f "$RUN/dns.saved"
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}
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home_up() {
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[ -f "$D/home.key" ] || return 0
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{ echo "[Interface]"; echo "PrivateKey = $(cat "$D/home.key")"; echo "Address = $(opt home_addr 172.16.6.32)/32"
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echo; echo "[Peer]"; echo "PublicKey = $(opt home_pub '')"; echo "Endpoint = $(opt home_endpoint '')"
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echo "AllowedIPs = 192.168.88.0/24, 172.16.6.0/24"; echo "PersistentKeepalive = 25"; } > "$RUN/pcahome.conf"
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chmod 600 "$RUN/pcahome.conf"
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wg-quick up "$RUN/pcahome.conf" >/dev/null 2>&1 && echo up > "$RUN/home" && say "home tunnel up"
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}
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home_down() { [ -f "$RUN/home" ] && wg-quick down "$RUN/pcahome.conf" >/dev/null 2>&1; rm -f "$RUN/home"; }
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watch() { # background: auto UDP->TCP, gateway changes, home on/off when roaming
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local started=$(date +%s) gw=$(gateway)
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while [ -f "$RUN/utun" ]; do
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sleep 5
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local now_gw=$(gateway)
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if [ -n "$now_gw" ] && [ "$now_gw" != "$gw" ]; then
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route -n delete -host "$(host)" >/dev/null 2>&1; route -n add -host "$(host)" "$now_gw" >/dev/null 2>&1
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gw=$now_gw; started=$(date +%s)
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if at_home; then home_down; elif [ ! -f "$RUN/home" ]; then home_up; fi
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fi
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if [ "$(opt transport auto)" = auto ] && [ "$(cat "$RUN/transport")" = udp ] && [ -n "$(tcp_port)" ] \
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&& [ $(( $(date +%s) - started )) -ge 15 ]; then
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local hs=$(wg show "$(utun)" latest-handshakes 2>/dev/null | awk '{print $2; exit}')
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if [ "${hs:-0}" = 0 ]; then say "no UDP answer in 15 s -> TCP"; start_obfuscator tcp; fi
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fi
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done
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}
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cmd_on() {
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need_root
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[ -f "$PROFILE" ] || { say "no profile: sudo phobos import 'phobos://...'"; exit 1; }
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[ -f "$RUN/utun" ] && cmd_off >/dev/null
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local gw=$(gateway) h=$(host) tp=$(tcp_port)
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[ -n "$gw" ] || { say "no network"; exit 1; }
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route -n add -host "$h" "$gw" >/dev/null 2>&1 # obfuscator/udptcp go around the tunnel
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if [ -n "$tp" ]; then nohup "$D/bin/udptcp" -c "127.0.0.1:$TCPLOCAL" "$h:$tp" >> "$RUN/tcp.log" 2>&1 & fi
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local mode=$(opt transport auto)
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start_obfuscator "$([ "$mode" = tcp ] && echo tcp || echo udp)"
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WG_TUN_NAME_FILE="$RUN/utun" wireguard-go utun >/dev/null 2>&1
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local u=$(utun) addr=$(sec Interface Address | cut -d, -f1) mtu=$(sec Interface MTU)
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[ -n "$u" ] || { say "wireguard-go failed"; cmd_off; exit 1; }
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umask 077
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{ echo "[Interface]"; echo "PrivateKey = $(sec Interface PrivateKey)"
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echo; echo "[Peer]"; echo "PublicKey = $(sec Peer PublicKey)"
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psk=$(sec Peer PresharedKey); [ -n "$psk" ] && echo "PresharedKey = $psk"
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echo "Endpoint = 127.0.0.1:$WGPORT"; echo "AllowedIPs = 0.0.0.0/0"; echo "PersistentKeepalive = 25"; } > "$RUN/wg.conf"
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wg setconf "$u" "$RUN/wg.conf"
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ifconfig "$u" inet "${addr%/*}" "${addr%/*}" netmask 255.255.255.255 mtu "${mtu:-1420}" up
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if [ "$(opt ru 1)" = 1 ]; then # Internet minus Russian networks
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grep -v '^#' "$D/ru_bypass.txt" | tr ',' '\n' | sed 's/ //g' | grep / | while read -r n; do
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route -q -n add -inet "$n" -interface "$u" >/dev/null 2>&1; done
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else
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route -q -n add -inet 0.0.0.0/1 -interface "$u"; route -q -n add -inet 128.0.0.0/1 -interface "$u"
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fi
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dns_set
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at_home || home_up
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nohup "$0" _watch >/dev/null 2>&1 &
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echo $! > "$RUN/watch.pid"
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say "on ($(cat "$RUN/transport"), RU direct: $(opt ru 1), home: $([ -f "$RUN/home" ] && echo up || echo off))"
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}
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cmd_off() {
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need_root
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[ -f "$RUN/watch.pid" ] && kill "$(cat "$RUN/watch.pid")" 2>/dev/null
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local u=$(utun)
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rm -f "$RUN/utun" "$RUN/watch.pid"
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[ -n "$u" ] && rm -f "/var/run/wireguard/$u.sock" # wireguard-go exits, its routes go with utun
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pkill -f "$D/bin/wg-obfuscator" 2>/dev/null; pkill -f "$D/bin/udptcp" 2>/dev/null
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[ -f "$PROFILE" ] && route -n delete -host "$(host)" >/dev/null 2>&1
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dns_restore; home_down
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say "off"
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}
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cmd_status() {
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local u=$(utun)
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if [ -z "$u" ]; then echo "VPN: выключен"; else
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local hs=$(wg show "$u" latest-handshakes 2>/dev/null | awk '{print $2; exit}')
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echo "VPN: включён · $(cat "$RUN/transport" | tr a-z A-Z) · рукопожатие $([ "${hs:-0}" = 0 ] && echo нет || echo "$(( $(date +%s) - hs )) с назад")"
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fi
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echo "Режим: $(opt transport auto) · РФ напрямую: $([ "$(opt ru 1)" = 1 ] && echo да || echo нет) · Дом: $([ -f "$RUN/home" ] && echo подключён || ( at_home && echo 'вы дома' || echo выкл ))"
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}
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case "${1:-status}" in
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on) cmd_on ;;
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off) cmd_off ;;
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status) cmd_status ;;
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auto|udp|tcp) need_root; echo "$1" > "$D/transport"; [ -f "$RUN/utun" ] && cmd_on >/dev/null; cmd_status ;;
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ru) need_root; [ "${2:-on}" = on ] && echo 1 > "$D/ru" || echo 0 > "$D/ru"; [ -f "$RUN/utun" ] && cmd_on >/dev/null; cmd_status ;;
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import) need_root; s="${2#phobos://}"; s="${s%%#*}"; s=$(echo "$s" | tr '_-' '/+')
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while [ $(( ${#s} % 4 )) -ne 0 ]; do s="$s="; done
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echo "$s" | base64 -D > "$PROFILE.new" && grep -q '\[instance\]' "$PROFILE.new" && mv "$PROFILE.new" "$PROFILE" && chmod 600 "$PROFILE" && say "imported $(target)" ;;
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_watch) watch ;;
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*) echo "usage: phobos on|off|status|auto|udp|tcp|ru on|off|import <phobos://...>"; exit 2 ;;
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esac
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