diff options
| author | Tom Gundersen <teg@jklm.no> | 2014-08-18 12:29:45 +0200 |
|---|---|---|
| committer | Tom Gundersen <teg@jklm.no> | 2014-08-18 18:11:42 +0200 |
| commit | e0fbf1fcffe014d5af6767b29f9108c2f2444888 (patch) | |
| tree | cadef3f6460bd1b44b3a5c982a4fd01a42ceecaf | |
| parent | fac9c0d508f72cc5d469c969a4acc3694247c03b (diff) | |
networkd: warn when ignoring unsupported tuntap options
The interface for creating tuntap devices should be ported to rtnl so it would support the same settings
as other kinds. In the meantime, the best one can do is to drop in a .link file to set the desired options.
| -rw-r--r-- | man/systemd.netdev.xml | 5 | ||||
| -rw-r--r-- | src/network/networkd-netdev-tuntap.c | 27 |
2 files changed, 31 insertions, 1 deletions
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml index acd845498c..275ee528a0 100644 --- a/man/systemd.netdev.xml +++ b/man/systemd.netdev.xml @@ -177,7 +177,9 @@ <para>The maximum transmission unit in bytes to set for the device. The usual suffixes K, M, G, are supported and are understood to the base of - 1024.</para> + 1024. This key is not currently suported for + <literal>tun</literal> or <literal>tap</literal> devices. + </para> </listitem> </varlistentry> <varlistentry> @@ -187,6 +189,7 @@ If none is given, one is generated based on the interface name and the <citerefentry><refentrytitle>machine-id</refentrytitle><manvolnum>5</manvolnum></citerefentry>. + This key is not currently suported for <literal>tun</literal> or <literal>tap</literal> devices. </para> </listitem> </varlistentry> diff --git a/src/network/networkd-netdev-tuntap.c b/src/network/networkd-netdev-tuntap.c index dd3bd96dbb..eef8747210 100644 --- a/src/network/networkd-netdev-tuntap.c +++ b/src/network/networkd-netdev-tuntap.c @@ -172,9 +172,35 @@ static void tuntap_done(NetDev *netdev) { t->group_name = NULL; } +static int tuntap_verify(NetDev *netdev, const char *filename) { + TunTap *t = NULL; + + assert(netdev); + + if (netdev->kind == NETDEV_KIND_TUN) + t = TUN(netdev); + else + t = TAP(netdev); + + assert(t); + + if (netdev->mtu) { + log_warning_netdev(netdev, "MTU configured for %s, ignoring", + netdev_kind_to_string(netdev->kind)); + } + + if (netdev->mac) { + log_warning_netdev(netdev, "MAC configured for %s, ignoring", + netdev_kind_to_string(netdev->kind)); + } + + return 0; +} + const NetDevVTable tun_vtable = { .object_size = sizeof(TunTap), .sections = "Match\0NetDev\0Tun\0", + .config_verify = tuntap_verify, .done = tuntap_done, .create = netdev_create_tuntap, .create_type = NETDEV_CREATE_INDEPENDENT, @@ -183,6 +209,7 @@ const NetDevVTable tun_vtable = { const NetDevVTable tap_vtable = { .object_size = sizeof(TunTap), .sections = "Match\0NetDev\0Tap\0", + .config_verify = tuntap_verify, .done = tuntap_done, .create = netdev_create_tuntap, .create_type = NETDEV_CREATE_INDEPENDENT, |