I noticed we were allocating these every time when they could just
share the same memory. Rather than document ownership, just lock it
down with a view.
I was considering doing all of the fields but decided to just do this
one first as test to see how infectious it became. Conclusion: not
very.
Updates #cleanup (while working towards tailscale/corp#20514)
Change-Id: I8ce08519de0c9a53f20292adfbecd970fe362de0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This moves NewContainsIPFunc from tsaddr to new ipset package.
And wgengine/filter types gets split into wgengine/filter/filtertype,
so netmap (and thus the CLI, etc) doesn't need to bring in ipset,
bart, etc.
Then add a test making sure the CLI deps don't regress.
Updates #1278
Change-Id: Ia246d6d9502bbefbdeacc4aef1bed9c8b24f54d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
NewContainsIPFunc returns a contains matcher optimized for its
input. Use that instead of what this did before, always doing a test
over each of a list of netip.Prefixes.
goos: darwin
goarch: arm64
pkg: tailscale.com/wgengine/filter
│ before │ after │
│ sec/op │ sec/op vs base │
FilterMatch/file1-8 32.60n ± 1% 18.87n ± 1% -42.12% (p=0.000 n=10)
Updates #12486
Change-Id: I8f902bc064effb431e5b46751115942104ff6531
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This adds a new RawMessage type backed by string instead of the
json.RawMessage which is backed by []byte. The byte slice makes
the generated views be a lot more defensive than the need to be
which we can get around by using a string instead.
Updates #cleanup
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Define PeerCapabilty and PeerCapMap as the new way of sending down
inter-peer capability information.
Previously, this was unstructured and you could only send down strings
which got too limiting for certain usecases. Instead add the ability
to send down raw JSON messages that are opaque to Tailscale but provide
the applications to define them however they wish.
Also update accessors to use the new values.
Updates #4217
Signed-off-by: Maisem Ali <maisem@tailscale.com>
This updates all source files to use a new standard header for copyright
and license declaration. Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.
This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.
Updates #6865
Signed-off-by: Will Norris <will@tailscale.com>
Add proto to flowtrack.Tuple.
Add types/ipproto leaf package to break a cycle.
Server-side ACL work remains.
Updates #1516
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We still use the packet.* alloc-free types in the data path, but
the compilation from netaddr to packet happens within the filter
package.
Signed-off-by: David Anderson <danderson@tailscale.com>
This depends on improved support from the control server, to send the
new subnet width (Bits) fields. If these are missing, we fall back to
assuming their value is /32.
Conversely, if the server sends Bits fields to an older client, it will
interpret them as /32 addresses. Since the only rules we allow are
"accept" rules, this will be narrower or equal to the intended rule, so
older clients will simply reject hosts on the wider subnet (fail
closed).
With this change, the internal filter.Matches format has diverged
from the wire format used by controlclient, so move the wire format
into tailcfg and convert it to filter.Matches in controlclient.
Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
This avoids a non-obvious data race, where the JSON decoder ends
up creating do-nothing writes into global variables.
==================
WARNING: DATA RACE
Write at 0x0000011e1860 by goroutine 201:
tailscale.com/wgengine/packet.(*IP).UnmarshalJSON()
/home/crawshaw/repo/corp/oss/wgengine/packet/packet.go:83 +0x2d9
encoding/json.(*decodeState).literalStore()
/home/crawshaw/go/go/src/encoding/json/decode.go:877 +0x445e
...
encoding/json.Unmarshal()
/home/crawshaw/go/go/src/encoding/json/decode.go:107 +0x1de
tailscale.com/control/controlclient.(*Direct).decodeMsg()
/home/crawshaw/repo/corp/oss/control/controlclient/direct.go:615 +0x1ab
tailscale.com/control/controlclient.(*Direct).PollNetMap()
/home/crawshaw/repo/corp/oss/control/controlclient/direct.go:525 +0x1053
tailscale.com/control/controlclient.(*Client).mapRoutine()
/home/crawshaw/repo/corp/oss/control/controlclient/auto.go:428 +0x3a6
Previous read at 0x0000011e1860 by goroutine 86:
tailscale.com/wgengine/filter.matchIPWithoutPorts()
/home/crawshaw/repo/corp/oss/wgengine/filter/match.go:108 +0x91
tailscale.com/wgengine/filter.(*Filter).runIn()
/home/crawshaw/repo/corp/oss/wgengine/filter/filter.go:147 +0x3c6
tailscale.com/wgengine/filter.(*Filter).RunIn()
/home/crawshaw/repo/corp/oss/wgengine/filter/filter.go:127 +0xb0
tailscale.com/wgengine.(*userspaceEngine).SetFilter.func1()
/home/crawshaw/repo/corp/oss/wgengine/userspace.go:390 +0xfc
github.com/tailscale/wireguard-go/device.(*Device).RoutineDecryption()
/home/crawshaw/repo/corp/wireguard-go/device/receive.go:295 +0xa1f
For #112
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
