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tailscale/cmd/tailscaled
Aaron Klotz 95671b71a6 ipn, safesocket: use Windows token in LocalAPI
On Windows, the idiomatic way to check access on a named pipe is for
the server to impersonate the client on its current OS thread, perform
access checks using the client's access token, and then revert the OS
thread's access token back to its true self.

The access token is a better representation of the client's rights than just
a username/userid check, as it represents the client's effective rights
at connection time, which might differ from their normal rights.

This patch updates safesocket to do the aforementioned impersonation,
extract the token handle, and then revert the impersonation. We retain
the token handle for the remaining duration of the connection (the token
continues to be valid even after we have reverted back to self).

Since the token is a property of the connection, I changed ipnauth to wrap
the concrete net.Conn to include the token. I then plumbed that change
through ipnlocal, ipnserver, and localapi as necessary.

I also added a PermitLocalAdmin flag to the localapi Handler which I intend
to use for controlling access to a few new localapi endpoints intended
for configuring auto-update.

Updates https://github.com/tailscale/tailscale/issues/755

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
7 months ago
..
childproc all: update copyright and license headers 1 year ago
debug.go net/netmon: make ChangeFunc's signature take new ChangeDelta, not bool 9 months ago
depaware.txt ipn, safesocket: use Windows token in LocalAPI 7 months ago
generate.go cmd/mkmanifest, cmd/tailscale, cmd/tailscaled: remove Windows arm32 resources from OSS 1 year ago
install_darwin.go all: update copyright and license headers 1 year ago
install_windows.go all: update copyright and license headers 1 year ago
manifest_windows_386.syso cmd/{tailscale,tailscaled}: embed manifest into Windows binaries 2 years ago
manifest_windows_amd64.syso cmd/{tailscale,tailscaled}: embed manifest into Windows binaries 2 years ago
manifest_windows_arm64.syso cmd/{tailscale,tailscaled}: embed manifest into Windows binaries 2 years ago
proxy.go all: update copyright and license headers 1 year ago
required_version.go all: require Go 1.21 10 months ago
sigpipe.go all: adjust some build tags for plan9 9 months ago
ssh.go all: update copyright and license headers 1 year ago
taildrop.go various: add detection and Taildrop for Unraid 1 year ago
tailscaled.defaults cmd/tailscaled: rename relaynode reference in defaults file comment 4 years ago
tailscaled.go cmd/tailscaled,*: add start of configuration file support 8 months ago
tailscaled.openrc tstest/integration/vms: use an in-process logcatcher (#2360) 3 years ago
tailscaled.service cmd/tailscaled: use explicit equal sign in --port=$PORT in tailscaled.service 2 years ago
tailscaled_bird.go all: update copyright and license headers 1 year ago
tailscaled_notwindows.go all: update copyright and license headers 1 year ago
tailscaled_test.go util/linuxfw: remove yet-unused code to fix linux/arm64 crash 11 months ago
tailscaled_windows.go util/syspolicy: add read boolean setting (#9592) 8 months ago
windows-manifest.xml cmd/{tailscale,tailscaled}: embed manifest into Windows binaries 2 years ago
with_cli.go all: update copyright and license headers 1 year ago