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Set ip if configured, otherwise just bring up link

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This commit is contained in:
Martin Eskdale Moen 2020-12-20 15:27:02 +00:00
parent e719f111f1
commit 7aa7548df6
1 changed files with 25 additions and 19 deletions
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44
up.go
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@ -17,6 +17,8 @@ func RunPostUp(conf *DsnetConfig) {
ShellOut(conf.PostUp, "PostUp") ShellOut(conf.PostUp, "PostUp")
} }
// CreateLink sets up the WG interface and link with the correct
// address
func CreateLink(conf *DsnetConfig) { func CreateLink(conf *DsnetConfig) {
linkAttrs := netlink.NewLinkAttrs() linkAttrs := netlink.NewLinkAttrs()
linkAttrs.Name = conf.InterfaceName linkAttrs.Name = conf.InterfaceName
@ -31,28 +33,32 @@ func CreateLink(conf *DsnetConfig) {
ExitFail("Could not add interface '%s' (%v)", conf.InterfaceName, err) ExitFail("Could not add interface '%s' (%v)", conf.InterfaceName, err)
} }
addr := &netlink.Addr{ if conf.IP != nil {
IPNet: &net.IPNet{ addr := &netlink.Addr{
IP: conf.IP, IPNet: &net.IPNet{
Mask: conf.Network.IPNet.Mask, IP: conf.IP,
}, Mask: conf.Network.IPNet.Mask,
},
}
err = netlink.AddrAdd(link, addr)
if err != nil {
ExitFail("Could not add ipv4 addr %s to interface %s", addr.IP, err)
}
} }
err = netlink.AddrAdd(link, addr) if conf.IP6 != nil {
if err != nil { addr6 := &netlink.Addr{
ExitFail("Could not add addr %s to interface %s", addr.IP, err) IPNet: &net.IPNet{
} IP: conf.IP6,
Mask: conf.Network6.IPNet.Mask,
},
}
addr6 := &netlink.Addr{ err = netlink.AddrAdd(link, addr6)
IPNet: &net.IPNet{ if err != nil {
IP: conf.IP6, ExitFail("Could not add ipv6 addr %s to interface %s", addr6.IP, err)
Mask: conf.Network6.IPNet.Mask, }
},
}
err = netlink.AddrAdd(link, addr6)
if err != nil {
ExitFail("Could not add addr %s to interface %s", addr.IP, err)
} }
// bring up interface (UNKNOWN state instead of UP, a wireguard quirk) // bring up interface (UNKNOWN state instead of UP, a wireguard quirk)