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net/portmapper: support legacy "urn:dslforum-org" portmapping services

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These are functionally the same as the "urn:schemas-upnp-org" services
with a few minor changes, and are still used by older devices. Support
them to improve our ability to obtain an external IP on such networks.

Updates #10911

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I05501fad9d6f0a3b8cf19fc95eee80e7d16cc2cf
This commit is contained in:
Andrew Dunham
2024-01-22 16:48:26 -05:00
parent 75f1d3e7d7
commit fd94d96e2b
4 changed files with 488 additions and 2 deletions
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net/portmapper/portmapper.go
+4
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@@ -1199,6 +1199,10 @@ var (
// received a UPnP response from a port other than the UPnP port.
metricUPnPResponseAlternatePort = clientmetric.NewCounter("portmap_upnp_response_alternate_port")
// metricUPnPSelectLegacy counts the number of times that a legacy
// service was found in a UPnP response.
metricUPnPSelectLegacy = clientmetric.NewCounter("portmap_upnp_select_legacy")
// metricUPnPSelectSingle counts the number of times that only a single
// UPnP device was available in selectBestService.
metricUPnPSelectSingle = clientmetric.NewCounter("portmap_upnp_select_single")