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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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4
wgengine/wgcfg/wgcfg_clone.go
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@@ -60,6 +60,9 @@ func (src *Peer) Clone() *Peer {
if dst.V4MasqAddr != nil {
dst.V4MasqAddr = ptr.To(*src.V4MasqAddr)
}
if dst.V6MasqAddr != nil {
dst.V6MasqAddr = ptr.To(*src.V6MasqAddr)
}
return dst
}
@@ -69,6 +72,7 @@ var _PeerCloneNeedsRegeneration = Peer(struct {
DiscoKey key.DiscoPublic
AllowedIPs []netip.Prefix
V4MasqAddr *netip.Addr
V6MasqAddr *netip.Addr
PersistentKeepalive uint16
WGEndpoint key.NodePublic
}{})