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tailscale/control/controlclient
David Anderson 02ad987e24 control/controlbase: make the protocol version number selectable.
This is so that we can plumb our client capability version through
the protocol as the Noise version. The capability version increments
more frequently than strictly required (the Noise version only needs
to change when cryptographically-significant changes are made to
the protocol, whereas the capability version also indicates changes
in non-cryptographically-significant parts of the protocol), but this
gives us a safe pre-auth way to determine if the client supports
future protocol features, while still relying on Noise's strong
assurance that the client and server have agreed on the same version.

Currently, the server executes the same protocol regardless of the
version number, and just presents the version to the caller so they
can do capability-based things in the upper RPC protocol. In future,
we may add a ratchet to disallow obsolete protocols, or vary the
Noise handshake behavior based on requested version.

Updates #3488

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
..
auto.go all: use any instead of interface{} 3 years ago
client.go ssh/tailssh, ipnlocal, controlclient: fetch next SSHAction from network 3 years ago
controlclient_test.go hostinfo: add SetDeviceModel setter, move remaining code from controlclient 3 years ago
debug.go control/controlclient: grow goroutine debug buffer as needed 3 years ago
debug_test.go control/controlclient: don't use regexp in goroutine stack scrubbing 3 years ago
direct.go net/netutil: add CheckIPForwardingLinux (#4301) 3 years ago
direct_test.go types/key: add a special key with custom serialization for control private keys (#2792) 3 years ago
map.go control/controlclient, ipn/ipnlocal, tailcfg: add MapResponse.PopBrowserURL 3 years ago
map_test.go control/controlclient: stop using wgkey. 3 years ago
noise.go control/controlbase: make the protocol version number selectable. 3 years ago
noise_test.go control/controlbase: make the protocol version number selectable. 3 years ago
sign.go control/controlclient: update machine certificate signature version 3 years ago
sign_supported.go go.mod: update to latest certstore 3 years ago
sign_supported_test.go go.mod: update to latest certstore 3 years ago
sign_unsupported.go go.mod: update to latest certstore 3 years ago
status.go control/controlclient,tailcfg: propagate registration errors to the frontend 3 years ago