wg-quick: add 'strip' subcommand

`wg-quick strip` prints the config file to stdout after stripping it of
all wg-quick-specific options.

This enables tricks such as `wg addconf $DEV <(wg-quick strip $DEV)`.

Signed-off-by: Luis Ressel <aranea@aixah.de>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Luis Ressel 2019-03-14 00:36:22 +01:00 committed by Jason A. Donenfeld
parent 84cf22da0d
commit cdb687cc0b
5 changed files with 50 additions and 5 deletions

View file

@ -11,6 +11,8 @@ wg-quick - set up a WireGuard interface simply
.I down
|
.I save
|
.I strip
] [
.I CONFIG_FILE
|
@ -27,7 +29,11 @@ an interface. Running \fIup\fP adds a WireGuard interface, brings up the interfa
supplied IP addresses, sets up mtu and routes, and optionally runs pre/post up scripts. Running \fIdown\fP
optionally saves the current configuration, removes the WireGuard interface, and optionally
runs pre/post down scripts. Running \fIsave\fP saves the configuration of an existing
interface without bringing the interface down.
interface without bringing the interface down. Use \fIstrip\fP to output a configuration file
with all
.BR wg-quick (8)-specific
options removed, suitable for use with
.BR wg (8).
\fICONFIG_FILE\fP is a configuration file, whose filename is the interface name
followed by `.conf'. Otherwise, \fIINTERFACE\fP is an interface name, with configuration
@ -243,6 +249,13 @@ For convenience, if only an interface name is supplied, it automatically chooses
This will load the configuration file `/etc/wireguard/wgnet0.conf'.
The \fIstrip\fP command is useful for reloading configuration files without disrupting active
sessions:
\fB # wg addconf wgnet0 <(wg-quick strip wgnet0)\fP
(Note that the above command will add and update peers but will not remove peers.)
.SH SEE ALSO
.BR wg (8),
.BR ip (8),

View file

@ -385,7 +385,7 @@ execute_hooks() {
cmd_usage() {
cat >&2 <<-_EOF
Usage: $PROGRAM [ up | down | save ] [ CONFIG_FILE | INTERFACE ]
Usage: $PROGRAM [ up | down | save | strip ] [ CONFIG_FILE | INTERFACE ]
CONFIG_FILE is a configuration file, whose filename is the interface name
followed by \`.conf'. Otherwise, INTERFACE is an interface name, with
@ -452,6 +452,10 @@ cmd_save() {
save_config
}
cmd_strip() {
echo "$WG_CONFIG"
}
# ~~ function override insertion point ~~
if [[ $# -eq 1 && ( $1 == --help || $1 == -h || $1 == help ) ]]; then
@ -468,6 +472,10 @@ 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

View file

@ -368,7 +368,7 @@ execute_hooks() {
cmd_usage() {
cat >&2 <<-_EOF
Usage: $PROGRAM [ up | down | save ] [ CONFIG_FILE | INTERFACE ]
Usage: $PROGRAM [ up | down | save | strip ] [ CONFIG_FILE | INTERFACE ]
CONFIG_FILE is a configuration file, whose filename is the interface name
followed by \`.conf'. Otherwise, INTERFACE is an interface name, with
@ -431,6 +431,10 @@ cmd_save() {
save_config
}
cmd_strip() {
echo "$WG_CONFIG"
}
# ~~ function override insertion point ~~
make_temp
@ -450,6 +454,10 @@ 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

View file

@ -247,7 +247,7 @@ execute_hooks() {
cmd_usage() {
cat >&2 <<-_EOF
Usage: $PROGRAM [ up | down | save ] [ CONFIG_FILE | INTERFACE ]
Usage: $PROGRAM [ up | down | save | strip ] [ CONFIG_FILE | INTERFACE ]
CONFIG_FILE is a configuration file, whose filename is the interface name
followed by \`.conf'. Otherwise, INTERFACE is an interface name, with
@ -305,6 +305,10 @@ cmd_save() {
save_config
}
cmd_strip() {
echo "$WG_CONFIG"
}
# ~~ function override insertion point ~~
if [[ $# -eq 1 && ( $1 == --help || $1 == -h || $1 == help ) ]]; then
@ -321,6 +325,10 @@ 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

View file

@ -361,7 +361,7 @@ execute_hooks() {
cmd_usage() {
cat >&2 <<-_EOF
Usage: $PROGRAM [ up | down | save ] [ CONFIG_FILE | INTERFACE ]
Usage: $PROGRAM [ up | down | save | strip ] [ CONFIG_FILE | INTERFACE ]
CONFIG_FILE is a configuration file, whose filename is the interface name
followed by \`.conf'. Otherwise, INTERFACE is an interface name, with
@ -426,6 +426,10 @@ cmd_save() {
save_config
}
cmd_strip() {
echo "$WG_CONFIG"
}
# ~~ function override insertion point ~~
if [[ $# -eq 1 && ( $1 == --help || $1 == -h || $1 == help ) ]]; then
@ -442,6 +446,10 @@ 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