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Thread safety for MTU API functions

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This commit is contained in:
Neil Alexander 2019-11-21 09:28:36 +00:00
parent e90be6f569
commit d1c445dc41
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GPG Key ID: A02A2019A2BB0944
2 changed files with 11 additions and 12 deletions
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21
src/yggdrasil/api.go
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@ -365,18 +365,19 @@ func (c *Core) SetNodeInfo(nodeinfo interface{}, nodeinfoprivacy bool) {
// GetMaximumSessionMTU returns the maximum allowed session MTU size.
func (c *Core) GetMaximumSessionMTU(mtu uint16) uint16 {
return c.router.sessions.myMaximumMTU
mtu := 0
phony.Block(c.router, func() {
mtu = c.router.sessions.myMaximumMTU
})
return mtu
}
// SetMaximumSessionMTU sets the maximum allowed session MTU size. The return
// value contains the actual set value, since Yggdrasil will not accept MTUs
// below 1280 bytes. The default value is 65535 bytes.
func (c *Core) SetMaximumSessionMTU(mtu uint16) uint16 {
if mtu < 1280 {
mtu = 1280
}
c.router.sessions.myMaximumMTU = mtu
return mtu
// SetMaximumSessionMTU sets the maximum allowed session MTU size. The default
// value is 65535 bytes.
func (c *Core) SetMaximumSessionMTU(mtu uint16) {
phony.Block(c.router, func() {
c.router.sessions.myMaximumMTU = mtu
})
}
// GetNodeInfo requests nodeinfo from a remote node, as specified by the public

2
src/yggdrasil/session.go
View File

@ -189,8 +189,6 @@ func (ss *sessions) createSession(theirPermKey *crypto.BoxPubKey) *sessionInfo {
sinfo.mySesPriv = *priv
sinfo.myNonce = *crypto.NewBoxNonce()
sinfo.theirMTU = 1280
// TODO: sinfo.myMTU becomes unnecessary if we always have a reference to the
// sessions struct so let's check if that is the case
sinfo.myMTU = ss.myMaximumMTU
now := time.Now()
sinfo.timeOpened = now