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all: declare & plumb IPv6 masquerade address for peer

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This PR plumbs through awareness of an IPv6 SNAT/masquerade address from the wire protocol
through to the low-level (tstun / wgengine). This PR is the first in two PRs for implementing
IPv6 NAT support to/from peers.

A subsequent PR will implement the data-plane changes to implement IPv6 NAT - this is just plumbing.

Signed-off-by: Tom DNetto <tom@tailscale.com>
Updates ENG-991
This commit is contained in:
Tom DNetto
2023-09-18 17:03:53 -07:00
committed by Tom
parent d9ae7d670e
commit c08cf2a9c6
13 changed files with 81 additions and 9 deletions
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9
tailcfg/tailcfg_view.go
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@@ -186,6 +186,14 @@ func (v NodeView) SelfNodeV4MasqAddrForThisPeer() *netip.Addr {
return &x
}
func (v NodeView) SelfNodeV6MasqAddrForThisPeer() *netip.Addr {
if v.ж.SelfNodeV6MasqAddrForThisPeer == nil {
return nil
}
x := *v.ж.SelfNodeV6MasqAddrForThisPeer
return &x
}
func (v NodeView) IsWireGuardOnly() bool { return v.ж.IsWireGuardOnly }
func (v NodeView) ExitNodeDNSResolvers() views.SliceView[*dnstype.Resolver, dnstype.ResolverView] {
return views.SliceOfViews[*dnstype.Resolver, dnstype.ResolverView](v.ж.ExitNodeDNSResolvers)
@@ -225,6 +233,7 @@ var _NodeViewNeedsRegeneration = Node(struct {
DataPlaneAuditLogID string
Expired bool
SelfNodeV4MasqAddrForThisPeer *netip.Addr
SelfNodeV6MasqAddrForThisPeer *netip.Addr
IsWireGuardOnly bool
ExitNodeDNSResolvers []*dnstype.Resolver
}{})