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Add per endpoint ARP statistics

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The ARP stat NetworkUnreachable was removed, and was replaced by
InterfaceHasNoLocalAddress. No stats are recorded when dealing with an
missing endpoint (ErrNotConnected) (because if there is no endpoint,
there is no valid per-endpoint stats).

PiperOrigin-RevId: 353759462
This commit is contained in:
Arthur Sfez
2021-01-25 16:52:05 -08:00
committed by gVisor bot
parent b4665aef87
commit 39db3b9355
12 changed files with 389 additions and 164 deletions
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pkg/sentry/socket/netstack/netstack.go
-1
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@@ -193,7 +193,6 @@ var Metrics = tcpip.Stats{
RequestsReceivedUnknownTargetAddress: mustCreateMetric("/netstack/arp/requests_received_unknown_addr", "Number of ARP requests received with an unknown target address."),
OutgoingRequestInterfaceHasNoLocalAddressErrors: mustCreateMetric("/netstack/arp/outgoing_requests_iface_has_no_addr", "Number of failed attempts to send an ARP request with an interface that has no network address."),
OutgoingRequestBadLocalAddressErrors: mustCreateMetric("/netstack/arp/outgoing_requests_invalid_local_addr", "Number of failed attempts to send an ARP request with a provided local address that is invalid."),
OutgoingRequestNetworkUnreachableErrors: mustCreateMetric("/netstack/arp/outgoing_requests_network_unreachable", "Number of failed attempts to send an ARP request with a network unreachable error."),
OutgoingRequestsDropped: mustCreateMetric("/netstack/arp/outgoing_requests_dropped", "Number of ARP requests which failed to write to a link-layer endpoint."),
OutgoingRequestsSent: mustCreateMetric("/netstack/arp/outgoing_requests_sent", "Number of ARP requests sent."),
RepliesReceived: mustCreateMetric("/netstack/arp/replies_received", "Number of ARP replies received."),