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wgengine,ipn,cmd/tailscale: add size option to ping (#8739)

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This adds the capability to pad disco ping message payloads to reach a
specified size. It also plumbs it through to the tailscale ping -size
flag.

Disco pings used for actual endpoint discovery do not use this yet.

Updates #311.

Signed-off-by: salman <salman@tailscale.com>
Co-authored-by: Val <valerie@tailscale.com>
This commit is contained in:
salman aljammaz
2023-08-08 13:11:28 +01:00
committed by GitHub
parent 49896cbdfa
commit 25a7204bb4
12 changed files with 125 additions and 30 deletions
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wgengine/wgengine.go
+5 -3
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@@ -150,9 +150,11 @@ type Engine interface {
// status builder.
UpdateStatus(*ipnstate.StatusBuilder)
// Ping is a request to start a ping with the peer handling the given IP and
// then call cb with its ping latency & method.
Ping(ip netip.Addr, pingType tailcfg.PingType, cb func(*ipnstate.PingResult))
// Ping is a request to start a ping of the given message size to the peer
// handling the given IP, then call cb with its ping latency & method.
//
// If size is zero too small, it is ignored. See tailscale.PingOpts for details.
Ping(ip netip.Addr, pingType tailcfg.PingType, size int, cb func(*ipnstate.PingResult))
// RegisterIPPortIdentity registers a given node (identified by its
// Tailscale IP) as temporarily having the given IP:port for whois lookups.