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mirror of https://github.com/cwinfo/yggdrasil-go.git synced 2024-12-23 04:05:39 +00:00

limit MTU to no more than what the packetconn claims to support

This commit is contained in:
Arceliar 2021-05-09 11:27:37 -05:00
parent 3bfd891fd4
commit b48962a69a
3 changed files with 11 additions and 3 deletions

2
go.mod
View File

@ -3,7 +3,7 @@ module github.com/yggdrasil-network/yggdrasil-go
go 1.16
require (
github.com/Arceliar/ironwood v0.0.0-20210508165109-414e0b35fc84
github.com/Arceliar/ironwood v0.0.0-20210509162436-68a5d50e0d8f
github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979
github.com/cheggaaa/pb/v3 v3.0.6
github.com/fatih/color v1.10.0 // indirect

4
go.sum
View File

@ -2,6 +2,10 @@ github.com/Arceliar/ironwood v0.0.0-20210508094446-74a68e4f5970 h1:sKiz18LynwIny
github.com/Arceliar/ironwood v0.0.0-20210508094446-74a68e4f5970/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
github.com/Arceliar/ironwood v0.0.0-20210508165109-414e0b35fc84 h1:hhgFLxGnMXtr1TwnFQcUudSphe7g8i0qB/xgfNlLmHE=
github.com/Arceliar/ironwood v0.0.0-20210508165109-414e0b35fc84/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
github.com/Arceliar/ironwood v0.0.0-20210509152840-bc3ec5afa1ed h1:LXo+ZsQIx2xI6pbojnhK7PenYNMi3edKI9xSdoX/iSw=
github.com/Arceliar/ironwood v0.0.0-20210509152840-bc3ec5afa1ed/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
github.com/Arceliar/ironwood v0.0.0-20210509162436-68a5d50e0d8f h1:kjCfDzlGtM3BD9X5kF8SxvFhghCncYyJb/rxA/NZwK4=
github.com/Arceliar/ironwood v0.0.0-20210509162436-68a5d50e0d8f/go.mod h1:RP72rucOFm5udrnEzTmIWLRVGQiV/fSUAQXJ0RST/nk=
github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979 h1:WndgpSW13S32VLQ3ugUxx2EnnWmgba1kCqPkd4Gk1yQ=
github.com/Arceliar/phony v0.0.0-20210209235338-dde1a8dca979/go.mod h1:6Lkn+/zJilRMsKmbmG1RPoamiArC6HS73xbwRyp3UyI=
github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdcM=

View File

@ -156,10 +156,14 @@ func (tun *TunAdapter) _start() error {
tun.log.Debugln("Not starting TUN as ifname is none or dummy")
return nil
}
if err := tun.setup(current.IfName, addr, current.IfMTU); err != nil {
mtu := current.IfMTU
if tun.core.MTU() < uint64(mtu) {
mtu = MTU(tun.core.MTU())
}
if err := tun.setup(current.IfName, addr, mtu); err != nil {
return err
}
if tun.MTU() != current.IfMTU {
if tun.MTU() != mtu {
tun.log.Warnf("Warning: Interface MTU %d automatically adjusted to %d (supported range is 1280-%d)", current.IfMTU, tun.MTU(), MaximumMTU())
}
// TODO tun.core.SetMaximumSessionMTU(tun.MTU())