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wg-quick: support v6 dual stack

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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2017-01-24 05:28:03 +01:00
parent 3606898d23
commit cf2cb85a08
1 changed files with 18 additions and 7 deletions
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25
src/wg-quick.bash
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@ -79,8 +79,10 @@ add_if() {
del_if() { del_if() {
if [[ $(ip route show table all) =~ .*\ dev\ $INTERFACE\ table\ ([0-9]+)\ .* ]]; then if [[ $(ip route show table all) =~ .*\ dev\ $INTERFACE\ table\ ([0-9]+)\ .* ]]; then
cmd ip rule delete table "${BASH_REMATCH[1]}" while [[ -n $(ip rule show table ${BASH_REMATCH[1]}) ]]; do
[[ $(ip rule show table main) == *"from all lookup main suppress_prefixlength 0"* ]] && cmd ip rule delete table main suppress_prefixlength 0 cmd ip rule delete table "${BASH_REMATCH[1]}"
[[ $(ip rule show table main) == *"from all lookup main suppress_prefixlength 0"* ]] && cmd ip rule delete table main suppress_prefixlength 0
done
fi fi
cmd ip link delete dev "$INTERFACE" cmd ip link delete dev "$INTERFACE"
} }
@ -101,13 +103,22 @@ add_route() {
fi fi
} }
DEFAULT_TABLE=
PREVIOUS_ENDPOINT=
add_default() { add_default() {
[[ $(join <(wg show "$INTERFACE" allowed-ips) <(wg show "$INTERFACE" endpoints)) =~ .*\ ${1//./\\.}\ \[?([0-9.:a-f]+)\]?:[0-9]+$ ]] && local endpoint="${BASH_REMATCH[1]}" [[ $(join <(wg show "$INTERFACE" allowed-ips) <(wg show "$INTERFACE" endpoints)) =~ ([A-Za-z0-9/+=]{44})\ ([0-9a-f/.:]+ )*${1//./\\.}\ ([0-9a-f/.:]+ )*\[?([0-9.:a-f]+)\]?:[0-9]+ ]] && local endpoint="${BASH_REMATCH[4]}"
[[ -n $endpoint ]] || return 0 [[ -n $endpoint ]] || return 0
local table=51820 local first=0
while [[ -n $(ip route show table $table) ]]; do ((table++)); done if [[ -z $DEFAULT_TABLE ]]; then
cmd ip route add "$1" dev "$INTERFACE" table $table first=1
cmd ip rule add not to "$endpoint" table $table DEFAULT_TABLE=51820
while [[ -n $(ip route show table $DEFAULT_TABLE) ]]; do ((DEFAULT_TABLE++)); done
fi
cmd ip route add "$1" dev "$INTERFACE" table $DEFAULT_TABLE
[[ $PREVIOUS_ENDPOINT == "$endpoint" ]] && return 0
PREVIOUS_ENDPOINT="$endpoint"
cmd ip rule add not to "$endpoint" table $DEFAULT_TABLE
[[ $first -eq 1 ]] || return 0
cmd ip rule add table main suppress_prefixlength 0 cmd ip rule add table main suppress_prefixlength 0
} }