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tailcfg: add ServiceName

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Rather than using a string everywhere and needing to clarify that the
string should have the svc: prefix, create a separate type for Service
names.

Updates tailscale/corp#24607

Change-Id: I720e022f61a7221644bb60955b72cacf42f59960
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
This commit is contained in:
Adrian Dewhurst
2025-01-21 17:07:34 -05:00
committed by Adrian Dewhurst
parent d1b378504c
commit 0fa7b4a236
12 changed files with 95 additions and 72 deletions
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10
types/netmap/netmap.go
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@@ -427,10 +427,10 @@ const (
)
// IPServiceMappings maps IP addresses to service names. This is the inverse of
// [ServiceIPMappings], and is used to inform clients which services is an VIP
// address associated with. This is set to b.ipVIPServiceMap every time the
// netmap is updated. This is used to reduce the cost for looking up the service
// name for the dst IP address in the netStack packet processing workflow.
// [tailcfg.ServiceIPMappings], and is used to inform track which service a VIP
// is associated with. This is set to b.ipVIPServiceMap every time the netmap is
// updated. This is used to reduce the cost for looking up the service name for
// the dst IP address in the netStack packet processing workflow.
//
// This is of the form:
//
@@ -440,4 +440,4 @@ const (
// "100.102.42.3": "svc:web",
// "fd7a:115c:a1e0::abcd": "svc:web",
// }
type IPServiceMappings map[netip.Addr]string
type IPServiceMappings map[netip.Addr]tailcfg.ServiceName