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wg-quick: various cleanups 

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2017-03-23 15:44:10 +01:00
parent 3067b59798
commit a8803c17a7
1 changed files with 6 additions and 5 deletions
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11
src/wg-quick.bash
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@ -79,9 +79,10 @@ add_if() {
}
del_if() {
local fwmark="$(wg show "$INTERFACE" fwmark)"
local fwmark
fwmark="$(wg show "$INTERFACE" fwmark)"
DEFAULT_TABLE=0
[[ $fwmark != off ]] && DEFAULT_TABLE=$(( $fwmark ))
[[ $fwmark != off ]] && DEFAULT_TABLE=$(( fwmark ))
if [[ $DEFAULT_TABLE -ne 0 ]]; then
while [[ $(ip -4 rule show) == *"lookup $DEFAULT_TABLE"* ]]; do
cmd ip -4 rule delete table $DEFAULT_TABLE
@ -127,8 +128,8 @@ add_default() {
cmd ip $proto route add "$1" dev "$INTERFACE" table $DEFAULT_TABLE
cmd ip $proto rule add not fwmark $DEFAULT_TABLE table $DEFAULT_TABLE
cmd ip $proto rule add table main suppress_prefixlength 0
local key equals value
while read -r key equals value; do
local key value
while read -r key _ value; do
[[ $value -eq 1 ]] && sysctl -q "$key=2"
done < <(sysctl -a -r 'net\.ipv4.conf\..+\.rp_filter')
return 0
@ -153,7 +154,7 @@ save_config() {
old_umask="$(umask)"
umask 077
current_config="$(cmd wg showconf "$INTERFACE")"
trap "rm -f '$CONFIG_FILE.tmp; exit'" INT TERM EXIT
trap 'rm -f "$CONFIG_FILE.tmp"; exit' INT TERM EXIT
echo "${current_config/\[Interface\]$'\n'/$new_config}" > "$CONFIG_FILE.tmp" || die "Could not write configuration file"
mv "$CONFIG_FILE.tmp" "$CONFIG_FILE" || die "Could not move configuration file"
trap - INT TERM EXIT