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tailscale/wgengine
Andrew Dunham 6540d1f018 wgengine/router: look up absolute path to netsh.exe on Windows
This is in response to logs from a customer that show that we're unable
to run netsh due to the following error:

    router: firewall: adding Tailscale-Process rule to allow UDP for "C:\\Program Files\\Tailscale\\tailscaled.exe" ...
    router: firewall: error adding Tailscale-Process rule: exec: "netsh": cannot run executable found relative to current directory:

There's approximately no reason to ever dynamically look up the path of
a system utility like netsh.exe, so instead let's first look for it
in the System32 directory and only if that fails fall back to the
previous behaviour.

Updates #10804

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I68cfeb4cab091c79ccff3187d35f50359a690573
11 months ago
..
bench tailcfg, all: use []netip.AddrPort instead of []string for Endpoints 1 year ago
capture various: add golangci-lint, fix issues (#7905) 2 years ago
filter wgengine/filter: add protocol-agnostic packet checker (#10446) 12 months ago
magicsock wgengine/magicsock: fix typos in docs (#10729) 11 months ago
netlog wgengine/netlog: fix nil pointer dereference in logtail (#8598) 1 year ago
netstack wgengine/netstack: disable RACK on Windows (#10402) 12 months ago
router wgengine/router: look up absolute path to netsh.exe on Windows 11 months ago
wgcfg cmd/cloner,*: revert: optimize nillable slice cloner 1 year ago
wgint all: update copyright and license headers 2 years ago
wglog all: update copyright and license headers 2 years ago
winnet all: update copyright and license headers 2 years ago
mem_ios.go all: update copyright and license headers 2 years ago
pendopen.go types/netmap, all: use read-only tailcfg.NodeView in NetworkMap 1 year ago
userspace.go all: cleanup unused code, part 1 (#10661) 11 months ago
userspace_ext_test.go tsd: add package with System type to unify subsystem init, discovery 2 years ago
userspace_test.go control,tailcfg,wgengine/magicsock: add nodeAttr to enable/disable peer MTU 1 year ago
watchdog.go wgengine, proxymap: split out port mapping from Engine to new type 1 year ago
watchdog_js.go all: update copyright and license headers 2 years ago
watchdog_test.go all: update copyright and license headers 2 years ago
wgengine.go wgengine, proxymap: split out port mapping from Engine to new type 1 year ago