You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
tailscale/cmd
Brad Fitzpatrick 9bb601ebe8 ipn/ipnlocal, wgengine/netstack: use netstack for peerapi server
We're finding a bunch of host operating systems/firewalls interact poorly
with peerapi. We either get ICMP errors from the host or users need to run
commands to allow the peerapi port:

https://github.com/tailscale/tailscale/issues/3842#issuecomment-1025133727

... even though the peerapi should be an internal implementation detail.

Rather than fight the host OS & firewalls, this change handles the
server side of peerapi entirely in netstack (except on iOS), so it
never makes its way to the host OS where it might be messed with. Two
main downsides are:

1) netstack isn't as fast, but we don't really need speed for peerapi.
   And actually, with fewer trips to/from the kernel, we might
   actually make up for some of the netstack performance loss by
   staying in userspace.

2) tcpdump / Wireshark etc packet captures will no longer see the peerapi
   traffic. Oh well. Crawshaw's been wanting to add packet capture server
   support to tailscaled, so we'll probably do that sooner now.

   A future change might also then use peerapi for the client-side
   (except on iOS).

Updates #3842 (probably fixes, as well as many exit node issues I bet)

Change-Id: Ibc25edbb895dc083d1f07bd3cab614134705aa39
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
(cherry picked from commit bd90781b34) + edits
(and cherry picked part of commit f3c0023add)
4 years ago
..
addlicense cmd/addlicense: add command to add licenseheaders to generated code 5 years ago
cloner cmd/cloner: mangle "go:generate" in cloner.go 4 years ago
derper cmd/derper: in manual cert mode, don't discard error from VerifyHostname 4 years ago
derpprobe derp: use new node key type. 4 years ago
hello cmd/hello: also redirect https://hello.ipn.dev to hello.ts.net 4 years ago
mkpkg cmd/mkpkg: allow zero files in a package. 5 years ago
printdep cmd/printdep: add flag to print out Go toolchain tarball URL 4 years ago
speedtest cmd: upgrade to ffcli v3 4 years ago
tailscale cmd/tailscale: fix up --reset, again 4 years ago
tailscaled ipn/ipnlocal, wgengine/netstack: use netstack for peerapi server 4 years ago
testcontrol cmd/testcontrol: add test control server 4 years ago
tsshd tsshd: fix double exit with different exit codes 4 years ago