New netbsd.bash for wg-quick and removing the -v in install
Unfortunately, NetBSD's install(1) doesn't support -v, so I took the easy way and just removed it.
This commit is contained in:
parent
eb4665ecf0
commit
b1535a00ca
14
src/Makefile
14
src/Makefile
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@ -79,18 +79,18 @@ clean:
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$(RM) wg *.o *.d
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install: wg
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@install -v -d "$(DESTDIR)$(BINDIR)" && install -v -m 0755 wg "$(DESTDIR)$(BINDIR)/wg"
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@install -v -d "$(DESTDIR)$(MANDIR)/man8" && install -v -m 0644 man/wg.8 "$(DESTDIR)$(MANDIR)/man8/wg.8"
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@install -d "$(DESTDIR)$(BINDIR)" && install -m 0755 wg "$(DESTDIR)$(BINDIR)/wg"
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@install -d "$(DESTDIR)$(MANDIR)/man8" && install -m 0644 man/wg.8 "$(DESTDIR)$(MANDIR)/man8/wg.8"
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@[ "$(WITH_BASHCOMPLETION)" = "yes" ] || exit 0; \
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install -v -d "$(DESTDIR)$(BASHCOMPDIR)" && install -v -m 0644 completion/wg.bash-completion "$(DESTDIR)$(BASHCOMPDIR)/wg"
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install -d "$(DESTDIR)$(BASHCOMPDIR)" && install -m 0644 completion/wg.bash-completion "$(DESTDIR)$(BASHCOMPDIR)/wg"
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@[ "$(WITH_WGQUICK)" = "yes" ] || exit 0; \
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install -v -m 0755 wg-quick/$(PLATFORM).bash "$(DESTDIR)$(BINDIR)/wg-quick" && install -v -m 0700 -d "$(DESTDIR)$(SYSCONFDIR)/wireguard"
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install -m 0755 wg-quick/$(PLATFORM).bash "$(DESTDIR)$(BINDIR)/wg-quick" && install -m 0700 -d "$(DESTDIR)$(SYSCONFDIR)/wireguard"
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@[ "$(WITH_WGQUICK)" = "yes" ] || exit 0; \
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install -v -m 0644 man/wg-quick.8 "$(DESTDIR)$(MANDIR)/man8/wg-quick.8"
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install -m 0644 man/wg-quick.8 "$(DESTDIR)$(MANDIR)/man8/wg-quick.8"
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@[ "$(WITH_WGQUICK)" = "yes" -a "$(WITH_BASHCOMPLETION)" = "yes" ] || exit 0; \
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install -v -m 0644 completion/wg-quick.bash-completion "$(DESTDIR)$(BASHCOMPDIR)/wg-quick"
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install -m 0644 completion/wg-quick.bash-completion "$(DESTDIR)$(BASHCOMPDIR)/wg-quick"
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@[ "$(WITH_WGQUICK)" = "yes" -a "$(WITH_SYSTEMDUNITS)" = "yes" ] || exit 0; \
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install -v -d "$(DESTDIR)$(SYSTEMDUNITDIR)" && install -v -m 0644 systemd/* "$(DESTDIR)$(SYSTEMDUNITDIR)/"
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install -d "$(DESTDIR)$(SYSTEMDUNITDIR)" && install -m 0644 systemd/* "$(DESTDIR)$(SYSTEMDUNITDIR)/"
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check: clean
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scan-build --html-title=wireguard-tools -maxloop 100 --view --keep-going $(MAKE) wg
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485
src/wg-quick/netbsd.bash
Executable file
485
src/wg-quick/netbsd.bash
Executable file
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@ -0,0 +1,485 @@
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#!/usr/bin/env bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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#
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set -e -o pipefail
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shopt -s extglob
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export LC_ALL=C
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SELF="$(readlink -f "${BASH_SOURCE[0]}")"
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export PATH="${SELF%/*}:$PATH"
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WG_CONFIG=""
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INTERFACE=""
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ADDRESSES=( )
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MTU=""
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DNS=( )
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DNS_SEARCH=( )
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TABLE=""
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PRE_UP=( )
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POST_UP=( )
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PRE_DOWN=( )
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POST_DOWN=( )
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SAVE_CONFIG=0
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CONFIG_FILE=""
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PROGRAM="${0##*/}"
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ARGS=( "$@" )
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cmd() {
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echo "[#] $*" >&2
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"$@"
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}
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die() {
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echo "$PROGRAM: $*" >&2
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exit 1
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}
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CONFIG_SEARCH_PATHS=( /etc/wireguard /usr/local/etc/wireguard )
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unset ORIGINAL_TMPDIR
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make_temp() {
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local old_umask
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[[ -v ORIGINAL_TMPDIR ]] && export TMPDIR="$ORIGINAL_TMPDIR"
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ORIGINAL_TMPDIR="$TMPDIR"
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[[ -z $TMPDIR ]] && unset TMPDIR
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old_umask="$(umask)"
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umask 077
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export TMPDIR="$(mktemp -d)"
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umask "$old_umask"
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[[ -d $TMPDIR ]] || die "Unable to create safe temporary directory"
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CLEANUP_TMPDIR="$TMPDIR"
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}
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clean_temp() {
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[[ -n $CLEANUP_TMPDIR ]] && rm -rf "$CLEANUP_TMPDIR"
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}
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parse_options() {
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local interface_section=0 line key value stripped path v
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CONFIG_FILE="$1"
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if [[ $CONFIG_FILE =~ ^[a-zA-Z0-9_=+.-]{1,15}$ ]]; then
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for path in "${CONFIG_SEARCH_PATHS[@]}"; do
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CONFIG_FILE="$path/$1.conf"
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[[ -e $CONFIG_FILE ]] && break
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done
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fi
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[[ -e $CONFIG_FILE ]] || die "\`$CONFIG_FILE' does not exist"
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[[ $CONFIG_FILE =~ (^|/)([a-zA-Z0-9_=+.-]{1,15})\.conf$ ]] || die "The config file must be a valid interface name, followed by .conf"
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CONFIG_FILE="$(readlink -f "$CONFIG_FILE")"
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((($(stat -f '0%#p' "$CONFIG_FILE") & $(stat -f '0%#p' "${CONFIG_FILE%/*}") & 0007) == 0)) || echo "Warning: \`$CONFIG_FILE' is world accessible" >&2
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INTERFACE="${BASH_REMATCH[2]}"
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shopt -s nocasematch
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while read -r line || [[ -n $line ]]; do
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stripped="${line%%\#*}"
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key="${stripped%%=*}"; key="${key##*([[:space:]])}"; key="${key%%*([[:space:]])}"
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value="${stripped#*=}"; value="${value##*([[:space:]])}"; value="${value%%*([[:space:]])}"
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[[ $key == "["* ]] && interface_section=0
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[[ $key == "[Interface]" ]] && interface_section=1
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if [[ $interface_section -eq 1 ]]; then
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case "$key" in
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Address) ADDRESSES+=( ${value//,/ } ); continue ;;
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MTU) MTU="$value"; continue ;;
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DNS) for v in ${value//,/ }; do
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[[ $v =~ (^[0-9.]+$)|(^.*:.*$) ]] && DNS+=( $v ) || DNS_SEARCH+=( $v )
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done; continue ;;
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Table) TABLE="$value"; continue ;;
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PreUp) PRE_UP+=( "$value" ); continue ;;
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PreDown) PRE_DOWN+=( "$value" ); continue ;;
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PostUp) POST_UP+=( "$value" ); continue ;;
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PostDown) POST_DOWN+=( "$value" ); continue ;;
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SaveConfig) read_bool SAVE_CONFIG "$value"; continue ;;
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esac
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fi
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WG_CONFIG+="$line"$'\n'
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done < "$CONFIG_FILE"
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shopt -u nocasematch
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}
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read_bool() {
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case "$2" in
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true) printf -v "$1" 1 ;;
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false) printf -v "$1" 0 ;;
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*) die "\`$2' is neither true nor false"
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esac
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}
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auto_su() {
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[[ $UID == 0 ]] || exec sudo -p "$PROGRAM must be run as root. Please enter the password for %u to continue: " -- "$BASH" -- "$SELF" "${ARGS[@]}"
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}
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add_if() {
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cmd "${WG_QUICK_USERSPACE_IMPLEMENTATION:-wireguard-go}" "$INTERFACE"
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}
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del_routes() {
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local todelete=( ) destination gateway netif
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while read -r destination _ _ _ _ netif _; do
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[[ $netif == "$INTERFACE" ]] && todelete+=( "$destination" )
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done < <(netstat -nr -f inet)
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for destination in "${todelete[@]}"; do
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cmd route -q -n delete -inet "$destination" || true
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done
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todelete=( )
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while read -r destination gateway _ netif; do
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[[ $netif == "$INTERFACE" || ( $netif == lo* && $gateway == "$INTERFACE" ) ]] && todelete+=( "$destination" )
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done < <(netstat -nr -f inet6)
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for destination in "${todelete[@]}"; do
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cmd route -q -n delete -inet6 "$destination" || true
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done
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for destination in "${ENDPOINTS[@]}"; do
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if [[ $destination == *:* ]]; then
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cmd route -q -n delete -inet6 "$destination" || true
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else
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cmd route -q -n delete -inet "$destination" || true
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fi
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done
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}
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if_exists() {
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# HACK: The goal is simply to determine whether or not the interface exists. The
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# straight-forward way of doing this would be `ifconfig $INTERFACE`, but this
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# invokes the SIOCGIFSTATUS ioctl, which races with interface shutdown inside
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# the tun driver, resulting in a kernel panic. So we work around it the stupid
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# way by using the one utility that appears to call if_nametoindex fairly early
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# and fails if it doesn't exist: `arp`.
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if arp -i "$INTERFACE" -a -n >/dev/null 2>&1; then
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return 0
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else
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return 1
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fi
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}
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del_if() {
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[[ $HAVE_SET_DNS -eq 0 ]] || unset_dns
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cmd rm -f "/var/run/wireguard/$INTERFACE.sock"
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while if_exists; do
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# HACK: it would be nice to `route monitor` here and wait for RTM_IFANNOUNCE
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# but it turns out that the announcement is made before the interface
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# disappears so we sometimes get a hang. So, we're instead left with polling
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# in a sleep loop like this.
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sleep 0.1
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done
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}
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up_if() {
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cmd ifconfig "$INTERFACE" up
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}
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add_addr() {
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if [[ $1 == *:* ]]; then
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cmd ifconfig "$INTERFACE" inet6 "$1" alias
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else
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cmd ifconfig "$INTERFACE" inet "$1" "${1%%/*}" alias
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fi
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}
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set_mtu() {
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local mtu=0 endpoint output family
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if [[ -n $MTU ]]; then
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cmd ifconfig "$INTERFACE" mtu "$MTU"
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return
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fi
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while read -r _ endpoint; do
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[[ $endpoint =~ ^\[?([a-z0-9:.]+)\]?:[0-9]+$ ]] || continue
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family=inet
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[[ ${BASH_REMATCH[1]} == *:* ]] && family=inet6
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output="$(route -n get "-$family" "${BASH_REMATCH[1]}" || true)"
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[[ $output =~ interface:\ ([^ ]+)$'\n' && $(ifconfig "${BASH_REMATCH[1]}") =~ mtu\ ([0-9]+) && ${BASH_REMATCH[1]} -gt $mtu ]] && mtu="${BASH_REMATCH[1]}"
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done < <(wg show "$INTERFACE" endpoints)
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if [[ $mtu -eq 0 ]]; then
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read -r output < <(route -n get default || true) || true
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[[ $output =~ interface:\ ([^ ]+)$'\n' && $(ifconfig "${BASH_REMATCH[1]}") =~ mtu\ ([0-9]+) && ${BASH_REMATCH[1]} -gt $mtu ]] && mtu="${BASH_REMATCH[1]}"
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fi
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[[ $mtu -gt 0 ]] || mtu=1500
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cmd ifconfig "$INTERFACE" mtu $(( mtu - 80 ))
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}
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collect_gateways() {
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local destination gateway
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GATEWAY4=""
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while read -r destination gateway _; do
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[[ $destination == default ]] || continue
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GATEWAY4="$gateway"
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break
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done < <(netstat -nr -f inet)
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GATEWAY6=""
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while read -r destination gateway _; do
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[[ $destination == default ]] || continue
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GATEWAY6="$gateway"
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break
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done < <(netstat -nr -f inet6)
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}
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collect_endpoints() {
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ENDPOINTS=( )
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while read -r _ endpoint; do
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[[ $endpoint =~ ^\[?([a-z0-9:.]+)\]?:[0-9]+$ ]] || continue
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ENDPOINTS+=( "${BASH_REMATCH[1]}" )
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done < <(wg show "$INTERFACE" endpoints)
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}
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set_endpoint_direct_route() {
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local old_endpoints endpoint old_gateway4 old_gateway6 remove_all_old=0 added=( )
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old_endpoints=( "${ENDPOINTS[@]}" )
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old_gateway4="$GATEWAY4"
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old_gateway6="$GATEWAY6"
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collect_gateways
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collect_endpoints
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[[ $old_gateway4 != "$GATEWAY4" || $old_gateway6 != "$GATEWAY6" ]] && remove_all_old=1
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if [[ $remove_all_old -eq 1 ]]; then
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for endpoint in "${ENDPOINTS[@]}"; do
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[[ " ${old_endpoints[*]} " == *" $endpoint "* ]] || old_endpoints+=( "$endpoint" )
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done
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fi
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for endpoint in "${old_endpoints[@]}"; do
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[[ $remove_all_old -eq 0 && " ${ENDPOINTS[*]} " == *" $endpoint "* ]] && continue
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if [[ $endpoint == *:* && $AUTO_ROUTE6 -eq 1 ]]; then
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cmd route -q -n delete -inet6 "$endpoint" 2>/dev/null || true
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elif [[ $AUTO_ROUTE4 -eq 1 ]]; then
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cmd route -q -n delete -inet "$endpoint" 2>/dev/null || true
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fi
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done
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for endpoint in "${ENDPOINTS[@]}"; do
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if [[ $remove_all_old -eq 0 && " ${old_endpoints[*]} " == *" $endpoint "* ]]; then
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added+=( "$endpoint" )
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continue
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fi
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if [[ $endpoint == *:* && $AUTO_ROUTE6 -eq 1 ]]; then
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if [[ -n $GATEWAY6 ]]; then
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cmd route -q -n add -inet6 "$endpoint" -gateway "$GATEWAY6" || true
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else
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# Prevent routing loop
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cmd route -q -n add -inet6 "$endpoint" ::1 -blackhole || true
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fi
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added+=( "$endpoint" )
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elif [[ $AUTO_ROUTE4 -eq 1 ]]; then
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if [[ -n $GATEWAY4 ]]; then
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cmd route -q -n add -inet "$endpoint" -gateway "$GATEWAY4" || true
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else
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# Prevent routing loop
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cmd route -q -n add -inet "$endpoint" 127.0.0.1 -blackhole || true
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fi
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added+=( "$endpoint" )
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fi
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done
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ENDPOINTS=( "${added[@]}" )
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}
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monitor_daemon() {
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echo "[+] Backgrounding route monitor" >&2
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(make_temp
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trap 'del_routes; clean_temp; exit 0' INT TERM EXIT
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exec >/dev/null 2>&1
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local event
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# TODO: this should also check to see if the endpoint actually changes
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# in response to incoming packets, and then call set_endpoint_direct_route
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# then too. That function should be able to gracefully cleanup if the
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# endpoints change.
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while read -r event; do
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[[ $event == RTM_* ]] || continue
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[[ -e /var/run/wireguard/$INTERFACE.sock ]] || break
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if_exists || break
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[[ $AUTO_ROUTE4 -eq 1 || $AUTO_ROUTE6 -eq 1 ]] && set_endpoint_direct_route
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# TODO: set the mtu as well, but only if up
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done < <(route -n monitor)) & disown
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}
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HAVE_SET_DNS=0
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set_dns() {
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[[ ${#DNS[@]} -gt 0 ]] || return 0
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{ printf 'nameserver %s\n' "${DNS[@]}"
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[[ ${#DNS_SEARCH[@]} -eq 0 ]] || printf 'search %s\n' "${DNS_SEARCH[*]}"
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} | cmd resolvconf -a "$INTERFACE" -x
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HAVE_SET_DNS=1
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}
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unset_dns() {
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[[ ${#DNS[@]} -gt 0 ]] || return 0
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cmd resolvconf -d "$INTERFACE"
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}
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add_route() {
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[[ $TABLE != off ]] || return 0
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local family=inet
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[[ $1 == *:* ]] && family=inet6
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if [[ -n $TABLE && $TABLE != auto ]]; then
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cmd route -q -n add "-$family" -fib "$TABLE" "$1" -interface "$INTERFACE"
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elif [[ $1 == */0 ]]; then
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if [[ $1 == *:* ]]; then
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AUTO_ROUTE6=1
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cmd route -q -n add -inet6 ::/1 -interface "$INTERFACE"
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cmd route -q -n add -inet6 8000::/1 -interface "$INTERFACE"
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else
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AUTO_ROUTE4=1
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cmd route -q -n add -inet 0.0.0.0/1 -interface "$INTERFACE"
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cmd route -q -n add -inet 128.0.0.0/1 -interface "$INTERFACE"
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fi
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else
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[[ $(route -n get "-$family" "$1" 2>/dev/null) =~ interface:\ $INTERFACE$'\n' ]] || cmd route -q -n add "-$family" "$1" -interface "$INTERFACE"
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fi
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}
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set_config() {
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cmd wg setconf "$INTERFACE" <(echo "$WG_CONFIG")
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}
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save_config() {
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local old_umask new_config current_config address cmd
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new_config=$'[Interface]\n'
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{ read -r _; while read -r _ _ _ address _; do
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new_config+="Address = $address"$'\n'
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done } < <(netstat -I "$INTERFACE" -n -W -f inet)
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{ read -r _; while read -r _ _ _ address _; do
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new_config+="Address = $address"$'\n'
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done } < <(netstat -I "$INTERFACE" -n -W -f inet6)
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while read -r address; do
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[[ $address =~ ^nameserver\ ([a-zA-Z0-9_=+:%.-]+)$ ]] && new_config+="DNS = ${BASH_REMATCH[1]}"$'\n'
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done < <(resolvconf -l "$INTERFACE" 2>/dev/null)
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[[ -n $MTU ]] && new_config+="MTU = $MTU"$'\n'
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[[ -n $TABLE ]] && new_config+="Table = $TABLE"$'\n'
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[[ $SAVE_CONFIG -eq 0 ]] || new_config+=$'SaveConfig = true\n'
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for cmd in "${PRE_UP[@]}"; do
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new_config+="PreUp = $cmd"$'\n'
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done
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for cmd in "${POST_UP[@]}"; do
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new_config+="PostUp = $cmd"$'\n'
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done
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for cmd in "${PRE_DOWN[@]}"; do
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new_config+="PreDown = $cmd"$'\n'
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done
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for cmd in "${POST_DOWN[@]}"; do
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new_config+="PostDown = $cmd"$'\n'
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done
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old_umask="$(umask)"
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umask 077
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current_config="$(cmd wg showconf "$INTERFACE")"
|
||||
trap 'rm -f "$CONFIG_FILE.tmp"; clean_temp; exit' INT TERM EXIT
|
||||
echo "${current_config/\[Interface\]$'\n'/$new_config}" > "$CONFIG_FILE.tmp" || die "Could not write configuration file"
|
||||
sync "$CONFIG_FILE.tmp"
|
||||
mv "$CONFIG_FILE.tmp" "$CONFIG_FILE" || die "Could not move configuration file"
|
||||
trap 'clean_temp; exit' INT TERM EXIT
|
||||
umask "$old_umask"
|
||||
}
|
||||
|
||||
execute_hooks() {
|
||||
local hook
|
||||
for hook in "$@"; do
|
||||
hook="${hook//%i/$INTERFACE}"
|
||||
echo "[#] $hook" >&2
|
||||
(eval "$hook")
|
||||
done
|
||||
}
|
||||
|
||||
cmd_usage() {
|
||||
cat >&2 <<-_EOF
|
||||
Usage: $PROGRAM [ up | down | save | strip ] [ CONFIG_FILE | INTERFACE ]
|
||||
|
||||
CONFIG_FILE is a configuration file, whose filename is the interface name
|
||||
followed by \`.conf'. Otherwise, INTERFACE is an interface name, with
|
||||
configuration found at:
|
||||
${CONFIG_SEARCH_PATHS[@]/%//INTERFACE.conf}.
|
||||
It is to be readable by wg(8)'s \`setconf' sub-command, with the exception
|
||||
of the following additions to the [Interface] section, which are handled
|
||||
by $PROGRAM:
|
||||
|
||||
- Address: may be specified one or more times and contains one or more
|
||||
IP addresses (with an optional CIDR mask) to be set for the interface.
|
||||
- DNS: an optional DNS server to use while the device is up.
|
||||
- MTU: an optional MTU for the interface; if unspecified, auto-calculated.
|
||||
- Table: an optional routing table to which routes will be added; if
|
||||
unspecified or \`auto', the default table is used. If \`off', no routes
|
||||
are added.
|
||||
- PreUp, PostUp, PreDown, PostDown: script snippets which will be executed
|
||||
by bash(1) at the corresponding phases of the link, most commonly used
|
||||
to configure DNS. The string \`%i' is expanded to INTERFACE.
|
||||
- SaveConfig: if set to \`true', the configuration is saved from the current
|
||||
state of the interface upon shutdown.
|
||||
|
||||
See wg-quick(8) for more info and examples.
|
||||
_EOF
|
||||
}
|
||||
|
||||
cmd_up() {
|
||||
local i
|
||||
[[ -z $(ifconfig "$INTERFACE" 2>/dev/null) ]] || die "\`$INTERFACE' already exists"
|
||||
trap 'del_if; del_routes; clean_temp; exit' INT TERM EXIT
|
||||
execute_hooks "${PRE_UP[@]}"
|
||||
add_if
|
||||
set_config
|
||||
for i in "${ADDRESSES[@]}"; do
|
||||
add_addr "$i"
|
||||
done
|
||||
set_mtu
|
||||
up_if
|
||||
set_dns
|
||||
for i in $(while read -r _ i; do for i in $i; do [[ $i =~ ^[0-9a-z:.]+/[0-9]+$ ]] && echo "$i"; done; done < <(wg show "$INTERFACE" allowed-ips) | sort -nr -k 2 -t /); do
|
||||
add_route "$i"
|
||||
done
|
||||
[[ $AUTO_ROUTE4 -eq 1 || $AUTO_ROUTE6 -eq 1 ]] && set_endpoint_direct_route
|
||||
monitor_daemon
|
||||
execute_hooks "${POST_UP[@]}"
|
||||
trap 'clean_temp; exit' INT TERM EXIT
|
||||
}
|
||||
|
||||
cmd_down() {
|
||||
[[ " $(wg show interfaces) " == *" $INTERFACE "* ]] || die "\`$INTERFACE' is not a WireGuard interface"
|
||||
execute_hooks "${PRE_DOWN[@]}"
|
||||
[[ $SAVE_CONFIG -eq 0 ]] || save_config
|
||||
del_if
|
||||
unset_dns
|
||||
execute_hooks "${POST_DOWN[@]}"
|
||||
}
|
||||
|
||||
cmd_save() {
|
||||
[[ " $(wg show interfaces) " == *" $INTERFACE "* ]] || die "\`$INTERFACE' is not a WireGuard interface"
|
||||
save_config
|
||||
}
|
||||
|
||||
cmd_strip() {
|
||||
echo "$WG_CONFIG"
|
||||
}
|
||||
|
||||
# ~~ function override insertion point ~~
|
||||
|
||||
make_temp
|
||||
trap 'clean_temp; exit' INT TERM EXIT
|
||||
|
||||
if [[ $# -eq 1 && ( $1 == --help || $1 == -h || $1 == help ) ]]; then
|
||||
cmd_usage
|
||||
elif [[ $# -eq 2 && $1 == up ]]; then
|
||||
auto_su
|
||||
parse_options "$2"
|
||||
cmd_up
|
||||
elif [[ $# -eq 2 && $1 == down ]]; then
|
||||
auto_su
|
||||
parse_options "$2"
|
||||
cmd_down
|
||||
elif [[ $# -eq 2 && $1 == save ]]; then
|
||||
auto_su
|
||||
parse_options "$2"
|
||||
cmd_save
|
||||
elif [[ $# -eq 2 && $1 == strip ]]; then
|
||||
auto_su
|
||||
parse_options "$2"
|
||||
cmd_strip
|
||||
else
|
||||
cmd_usage
|
||||
exit 1
|
||||
fi
|
||||
|
||||
exit 0
|
||||
Loading…
Reference in a new issue