93ffc565e5
derp: remove protocol version 1 support
...
It hasn't existed for a long time and there are no current users.
Fixes #199
6 years ago
6b80bcf112
derp: remove a client round-trip waiting on serverInfo
...
It just has a version number in it and it's not really needed.
Instead just return it as a normal Recv message type for those
that care (currently only tests).
Updates #150 (in that it shares the same goal: initial DERP latency)
Updates #199 (in that it removes some DERP versioning)
6 years ago
f6dc47efe4
tailcfg, controlclient, magicsock: add control feature flag to enable DRPO
...
Updates #150
6 years ago
771e9541c7
cmd/tailscale/cli: appease staticcheck
6 years ago
337c86b89d
control/controlclient: don't crash on invalid filter CIDR from server
...
Fixes #691
6 years ago
e64ab89712
derp/derpmap: add Bangalore and Tokyo
6 years ago
adf4f3cce0
cmd/tailscale/cli: make netcheck sort regions, show full region names
6 years ago
80d0b88a89
derp/derpmap: fix constructor argument order
...
Fix of 3e2bfe48c3
6 years ago
f90f35c123
Merge pull request #686 from tailscale/rosszurowski/add-region-name-to-derpmap
...
derpmap: add full region name
6 years ago
3e2bfe48c3
derpmap: add full region name
...
We're beginning to reference DERP region names in the admin UI, so it's
best to consolidate this information in our DERP map.
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
6 years ago
062bd67d3b
derp: use rand instead of crypto/rand to generate jitter
...
We don't need crypto/rand. Let the OS keep its entropy bits.
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
6 years ago
dbb4c246fa
wgengine/monitor: add Windows linkchange monitor
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Updates tailscale/corp#553
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
85c3d17b3c
wgengine/magicsock: use disco ping src as a candidate endpoint
...
Consider:
Hard NAT (A) <---> Hard NAT w/ mapped port (B)
If A sends a packet to B's mapped port, A can disco ping B directly,
with low latency, without DERP.
But B couldn't establish a path back to A and needed to use DERP,
despite already logging about A's endpoint and adding a mapping to it
for other purposes (the wireguard conn.Endpoint lookup also needed
it).
This adds the tracking to discoEndpoint too so it'll be used for
finding a path back.
Fixes tailscale/corp#556
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
0512fd89a1
wgengine/magicsock: simplify handlePingLocked
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It's no longer true that 'de may be nil'
6 years ago
37c19970b3
derp: add a debug option to verbosely log drops to a destination.
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Signed-off-by: David Anderson <danderson@tailscale.com>
6 years ago
909c165382
derp: remove two key.Public allocations
...
Reading and writing a [32]byte key to a bufio.Reader/bufio.Writer
can easily by done without allocating. Do so.
It is slower; on my machine, it adds about 100ns per read/write.
However, the overall request takes a minimum of several µs,
and it cuts allocations meaningfully, so it is probably worth it.
name old time/op new time/op delta
SendRecv/msgsize=10-8 9.21µs ± 9% 9.08µs ± 8% ~ (p=0.250 n=15+15)
SendRecv/msgsize=100-8 6.51µs ± 9% 6.60µs ± 7% ~ (p=0.259 n=15+13)
SendRecv/msgsize=1000-8 7.24µs ±13% 7.61µs ±36% ~ (p=1.000 n=11+15)
SendRecv/msgsize=10000-8 19.5µs ±15% 19.9µs ±25% ~ (p=0.890 n=14+15)
name old speed new speed delta
SendRecv/msgsize=10-8 1.09MB/s ± 8% 1.10MB/s ± 8% ~ (p=0.286 n=15+15)
SendRecv/msgsize=100-8 15.4MB/s ± 8% 15.1MB/s ± 6% ~ (p=0.129 n=15+12)
SendRecv/msgsize=1000-8 139MB/s ±15% 135MB/s ±28% ~ (p=1.000 n=11+15)
SendRecv/msgsize=10000-8 516MB/s ±17% 506MB/s ±21% ~ (p=0.880 n=14+15)
name old alloc/op new alloc/op delta
SendRecv/msgsize=10-8 170B ± 1% 108B ± 1% -36.63% (p=0.000 n=15+15)
SendRecv/msgsize=100-8 265B ± 1% 203B ± 1% -23.34% (p=0.000 n=15+15)
SendRecv/msgsize=1000-8 1.18kB ± 1% 1.12kB ± 0% -5.31% (p=0.000 n=14+14)
SendRecv/msgsize=10000-8 18.8kB ± 2% 18.8kB ± 2% ~ (p=0.443 n=12+12)
name old allocs/op new allocs/op delta
SendRecv/msgsize=10-8 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=100-8 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=1000-8 4.00 ± 0% 2.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=10000-8 5.00 ± 0% 3.00 ± 0% -40.00% (p=0.000 n=13+14)
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
6 years ago
b983e5340f
wgengine/monitor: add, clean up netlink logging on route changes
...
Updates #643
6 years ago
6fa7a9a055
wgengine/router/router_userspace_bsd: on Mac the route program syntax expects delete not del -- this had caused router reconfig to fail in some cases. Fixes #673
...
Signed-off-by: Mike Kramlich <groglogic@gmail.com>
6 years ago
95a18f815c
router/dns: detect host endianness for NetworkManager.
...
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
6 years ago
b97aac1718
net/interfaces: include DefaultRouteInterface in interfaces.State
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And log it in wgengine on change. Changing bug in #643 .
Updates #643
6 years ago
75225368a4
derp: fix 32-bit struct field alignment
6 years ago
15949ad77d
derp: export the new expvar.
6 years ago
13661e195a
derp: rename "wireguard" packet type to "other".
...
Strictly speaking, we don't know that it's a wireguard packet, just that
it doesn't look like a disco packet.
Signed-off-by: David Anderson <danderson@tailscale.com>
6 years ago
1b5b59231b
derp: break down received packets by kind (disco vs. wireguard).
...
Signed-off-by: David Anderson <danderson@tailscale.com>
6 years ago
c2b63ba363
cmd/microproxy: add a quick hack for some malformed variables.
...
Signed-off-by: David Anderson <danderson@tailscale.com>
6 years ago
5a0c37aafd
logpolicy: consider /var/lib/tailscale when no STATE_DIRECTORY
...
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
1f7a7a4ffe
tailcfg: add missing Node.DERP check in Node.Equals
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Updates tailscale/corp#549
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
4e63a4fda3
cmd/tailscale/cli: remove already done TODO
6 years ago
a9b1e3f9e8
net/interfaces: remove old debug old
...
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
6 years ago
e577303dc7
derp: make writeUint32 and readUint32 not allocate
...
The allocations are small, but they're easy enough to avoid.
And it removes some clutter from the pprof output.
name old time/op new time/op delta
SendRecv/msgsize=10-8 10.1µs ± 9% 9.7µs ± 7% -3.45% (p=0.035 n=14+14)
SendRecv/msgsize=100-8 8.12µs ± 7% 7.38µs ± 9% -9.02% (p=0.000 n=15+15)
SendRecv/msgsize=1000-8 9.51µs ±25% 8.76µs ±22% ~ (p=0.202 n=15+15)
SendRecv/msgsize=10000-8 21.1µs ±25% 19.9µs ±14% ~ (p=0.270 n=15+14)
WriteUint32-8 25.1ns ± 4% 21.3ns ±12% -15.01% (p=0.000 n=14+14)
ReadUint32-8 35.4ns ± 4% 21.9ns ± 4% -38.06% (p=0.000 n=15+15)
name old alloc/op new alloc/op delta
SendRecv/msgsize=10-8 182B ± 2% 169B ± 1% -7.22% (p=0.000 n=15+13)
SendRecv/msgsize=100-8 282B ± 1% 265B ± 1% -5.85% (p=0.000 n=15+15)
SendRecv/msgsize=1000-8 1.19kB ± 1% 1.18kB ± 0% -1.26% (p=0.000 n=14+15)
SendRecv/msgsize=10000-8 19.3kB ± 4% 18.7kB ± 4% -3.44% (p=0.006 n=12+12)
WriteUint32-8 4.00B ± 0% 0.00B -100.00% (p=0.000 n=15+15)
ReadUint32-8 4.00B ± 0% 0.00B -100.00% (p=0.000 n=15+15)
name old allocs/op new allocs/op delta
SendRecv/msgsize=10-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=100-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=1000-8 8.00 ± 0% 4.00 ± 0% -50.00% (p=0.000 n=15+15)
SendRecv/msgsize=10000-8 8.47 ±17% 5.00 ± 0% -40.94% (p=0.000 n=15+14)
WriteUint32-8 1.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15)
ReadUint32-8 1.00 ± 0% 0.00 -100.00% (p=0.000 n=15+15)
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
6 years ago
355c6296f0
derp: add readUint32 and writeUint32 benchmarks
...
These aren't particularly performance critical,
but since I have an optimization pending for them,
it's worth having a corresponding benchmark.
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
6 years ago
25b021388b
net/netns, net/interfaces: move defaultRouteInterface, add Android fallback
...
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
84dc891843
cmd/tailscale/cli: add ping subcommand
...
For example:
$ tailscale ping -h
USAGE
ping <hostname-or-IP>
FLAGS
-c 10 max number of pings to send
-stop-once-direct true stop once a direct path is established
-verbose false verbose output
$ tailscale ping mon.ts.tailscale.com
pong from monitoring (100.88.178.64) via DERP(sfo) in 65ms
pong from monitoring (100.88.178.64) via DERP(sfo) in 252ms
pong from monitoring (100.88.178.64) via [2604:a880:2:d1::36:d001]:41641 in 33ms
Fixes #661
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
d65e2632ab
derp: add basic benchmark
...
This benchmark is far from perfect: It mixes together
client and server. Still, it provides a starting point
for easy profiling.
Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
6 years ago
87cbc067c2
cmd/tailscale/cli: validate advertised routes' IP address-vs-network bits
...
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
a275b9d7aa
control/controlclient: use less battery when stopped, stop map requests
...
Updates #604
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
dd97111d06
backoff: update to Go style, document a bit, make 30s explicit
...
Also, bit of behavior change: on non-nil err but expired context,
don't reset the consecutive failure count. I don't think the old
behavior was intentional.
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
696020227c
tailcfg, control/controlclient: support delta-encoded netmaps
...
Should greatly reduce bandwidth for large networks (including our
hello.ipn.dev node).
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
b23f2263c1
derp: add server version to /debug, expvars
...
This will make it easier for a human to tell what
version is deployed, for (say) correlating line numbers
in profiles or panics to corresponding source code.
It'll also let us observe version changes in prometheus.
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
6 years ago
c64a43a734
wgengine/router: set MTU on Windows to min(configured,possible)
...
Fixes tailscale/corp#542
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
9318b4758c
README: update contributing section
6 years ago
6818bb843d
Update README, remove old relaynode dredge
6 years ago
24f78eff62
version: new week, new date
6 years ago
5590daa97d
control/controlclient: reset timeout timer on non-keepalive map updates
...
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
6 years ago
b840e7dd5b
go mod tidy
6 years ago
1b27eb431a
go.mod: update to newly rebased wireguard-go
6 years ago
2622e8e082
wgenginer/router: fix build
...
Rebasing github.com/tailscale/wireguard-go to upstream
wireguard-go changed the API.
This commit is analogous to
https://git.zx2c4.com/wireguard-windows/commit/?id=6823cc10ffe193c0cb1d61a5d1828d563d3d0e5f
6 years ago
b62b07bc2d
ipn: jack up the MaxMessageSize from 1MB to 10MB
...
hello.ipn.dev has a 2.5MB network map
6 years ago
cb01058a53
wgengine: stop giving tsdns a buffer that will be reused
...
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
6 years ago
9a346fd8b4
wgengine,magicsock: fix two lazy wireguard config issues
...
1) we weren't waking up a discoEndpoint that once existed and
went idle for 5 minutes and then got a disco message again.
2) userspaceEngine.noteReceiveActivity had a buggy check; fixed
and added a test
6 years ago
Brad Fitzpatrick
Ross Zurowski
Josh Bleecher Snyder
David Anderson
Mike Kramlich
Dmytro Shynkevych
Josh Bleecher Snyder