Commit Graph

233 Commits

Author SHA1 Message Date
WangXi
f2d6722348
lib/connections: Use proper errors.Is check (#9538) 2024-05-16 07:01:16 +00:00
DerRockWolf
debbe726e0
lib/connections: Add syncthing_connections_active metric (fixes #9527) (#9528)
### Purpose

Adds a new metric `syncthing_connections_active` which equals to the
amount of active connections per device.

Fixes #9527 

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### Testing

I've manually tested it by running syncthing with these changes locally
and examining the returned metrics from `/metrics`.
I've done the following things:
- Connect & disconnect a device
- Increase & decrease the number of connections and verify that the
value of the metric matches with the amount displayed in the GUI.

### Documentation

https://github.com/syncthing/docs/blob/main/includes/metrics-list.rst
needs to be regenerated with
[find-metrics.go](https://github.com/syncthing/docs/blob/main/_script/find-metrics/find-metrics.go)

## Authorship

Your name and email will be added automatically to the AUTHORS file
based on the commit metadata.

---------

Co-authored-by: Jakob Borg <jakob@kastelo.net>
2024-05-04 22:31:37 +02:00
Jakob Borg
e1dd36561d
all: Use some Go 1.21 features (#9409) 2024-02-10 21:02:42 +01:00
Jakob Borg
fc8b353011
build: Use Go 1.22, minimum is Go 1.21 (#9408)
Also updated dependencies, and an adjustment to build tags for how those
are handled and how irrelevant go1.15 is nowadays...
2024-02-09 16:35:29 +01:00
greatroar
cdefa535ed
lib/connections: Skip allocation in check for missing port (#9297)
Micro-optimization. Already has unit tests.
2023-12-20 11:59:11 +01:00
Maximilian
16db6fcf3d
lib/nat, lib/upnp: IPv6 UPnP support (#9010)
This pull request allows syncthing to request an IPv6
[pinhole](https://en.wikipedia.org/wiki/Firewall_pinhole), addressing
issue #7406. This helps users who prefer to use IPv6 for hosting their
services or are forced to do so because of
[CGNAT](https://en.wikipedia.org/wiki/Carrier-grade_NAT). Otherwise,
such users would have to configure their firewall manually to allow
syncthing traffic to pass through while IPv4 users can use UPnP to take
care of network configuration already.

### Testing

I have tested this in a virtual machine setup with miniupnpd running on
the virtualized router. It successfully added an IPv6 pinhole when used
with IPv6 only, an IPv4 port mapping when used with IPv4 only and both
when dual-stack (IPv4 and IPv6) is used.

Automated tests could be added for SOAP responses from the router but
automatically testing this with a real network is likely infeasible.

### Documentation

https://docs.syncthing.net/users/firewall.html could be updated to
mention the fact that UPnP now works with IPv6, although this change is
more "behind the scenes".

---------

Co-authored-by: Simon Frei <freisim93@gmail.com>
Co-authored-by: bt90 <btom1990@googlemail.com>
Co-authored-by: André Colomb <github.com@andre.colomb.de>
2023-12-11 07:36:18 +01:00
Jakob Borg
b91d7711aa
Update dependencies (#9129)
And some QUIC API changes, of course.
2023-09-25 21:45:57 +02:00
bt90
cf46bf0297
lib/connections: Fix transport type detection for QUIC (fixes #8274) (#9114)
Check remote address
2023-09-20 11:23:48 +02:00
bt90
e860d3b974
lib/connections: Make assumptions about isLAN when interface address listing fails (#9093) 2023-09-12 12:34:30 +00:00
Jakob Borg
c6334e61aa
all: Support multiple device connections (fixes #141) (#8918)
This adds the ability to have multiple concurrent connections to a single device. This is primarily useful when the network has multiple physical links for aggregated bandwidth. A single connection will never see a higher rate than a single link can give, but multiple connections are load-balanced over multiple links.

It is also incidentally useful for older multi-core CPUs, where bandwidth could be limited by the TLS performance of a single CPU core -- using multiple connections achieves concurrency in the required crypto calculations...

Co-authored-by: Simon Frei <freisim93@gmail.com>
Co-authored-by: tomasz1986 <twilczynski@naver.com>
Co-authored-by: bt90 <btom1990@googlemail.com>
2023-09-06 12:52:01 +02:00
Maximilian
c42c0e7ceb
lib/connections: Fix WANAddresses returning only unspecified IPs (ref #9010) (#9073)
Avoids taking the address of the same variable twice.
2023-09-03 15:03:27 +00:00
bt90
467522d04d
lib/connections: Allow IPv6 ULA in discovery announcements (fixes #7456) (#9048)
The allowed IPv4 ranges are the same as before. But we now also accept IPv6 addresses in the ULA range FC00::/7. These addresses don't require an interface identifier and are roughly equivalent to the IPv4 private ranges.

Typical usecases:

VPN interface IPs: Wireguard, OpenVPN, Tailscale, ...
fixed IPv6 LAN addressing while the provider assigns a dynamic prefix. e.g used by pihole
https://cs.opensource.google/go/go/+/refs/tags/go1.21.0:src/net/ip.go;l=146
2023-08-23 12:28:48 +02:00
Jakob Borg
acd767b30b
all: Remove lib/util package (#9049)
Grab-bag packages are nasty, this cleans it up a little by splitting it
into topical packages sempahore, netutil, stringutil, structutil.
2023-08-21 19:44:33 +02:00
Jakob Borg
cbf0e31f69
all: Use Go 1.21, new QUIC API (#9040) 2023-08-21 15:25:52 +02:00
Chih-Hsuan Yen
b806026990
lib/connections: Fix building with -tags noquic (#9009) 2023-07-28 10:08:50 +00:00
deepsource-autofix[bot]
f23c41221b
all: fix unused method receiver (#8988)
refactor: fix unused method receiver

Methods with unused receivers can be a symptom of unfinished refactoring or a bug. To keep 
the same method signature, omit the receiver name or '_' as it is unused.

Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>
2023-07-18 14:34:50 +00:00
deepsource-autofix[bot]
24e230d455
all: unused parameter should be replaced by underscore (#8989)
refactor: unused parameter should be replaced by underscore

Unused parameters in functions or methods should be replaced with `_`
(underscore) or removed.

Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>
2023-07-18 14:33:13 +00:00
Alexander Seiler
ddce692f72
all: Correct various typos (#8870) 2023-05-09 08:54:02 +02:00
Jakob Borg
09efe03e1d lib/connections: Avoid using nil lanChecker
Otherwise it panics when someone calls Priority() on it...
2023-04-19 10:42:25 +02:00
Jakob Borg
9b660c1959
lib/config, lib/connections: Configurable protocol priority (ref #8626) (#8868)
This makes the various protocol priorities configurable among the other
options. With this, it's possible to prefer QUIC over TCP for WAN
connections, for example. Both sides need to be similarly configured for
this to work properly.

The default priority order remains the same as previously (TCP, QUIC,
Relay, with LAN better than WAN).

To make this happen I made each dialer & listener more priority aware,
and moved the check for whether a connection is LAN or not into the
dialer / listener -- this is the new "lanChecker" type that's passed
around.
2023-04-16 14:54:28 +02:00
Jakob Borg
466b56ded1
lib/protocol: Cache expensive key operations (fixes #8599) (#8820)
This adds a cache to the expensive key generation operations. It's fixes
size LRU/MRU stuff to keep memory usage bounded under absurd conditions.

Also closes #8600.
2023-03-12 20:06:59 +01:00
greatroar
38f2b34d29
all: Use new Go 1.19 atomic types (#8772) 2023-02-07 12:07:34 +01:00
Jakob Borg
99595ce3d9
build: Update quic-go and pfilter for Go 1.20 (fixes #8768) (#8769) 2023-02-02 22:00:50 +01:00
André Colomb
ab0eb909a2
gui, lib/connections: Let the backend decide whether connection is local (fixes #8686) (#8694)
* lib/connections: Cache isLAN decision for later external access.

The check whether a remote device's address is on a local network
currently happens when handling the Hello message, to configure the
limiters.  Save the result to the ConnectionInfo and pass it out as
part of the model's ConnectionInfo struct in ConnectionStats().

* gui: Use provided connection attribute to distinguish LAN / WAN.

Replace the dumb IP address check which didn't catch common cases and
actually could contradict what the backend decided.  That could have
been confusing if the GUI says WAN, but the limiter is not actually
applied because the backend thinks it's a LAN.

Add strings for QUIC and relay connections to also differentiate
between LAN and WAN.

* gui: Redefine reception level icons for all connection types.

Move the mapping to the JS code, as it is much easier to handle
multiple switch cases by fall-through there.

QUIC is regarded no less than TCP anymore.  LAN and WAN make the
difference between levels 4 / 3 and 2 / 1:

{TCP,QUIC} LAN --> {TCP,QUIC} WAN --> Relay LAN --> Relay WAN -->
Disconnected.
2022-11-28 09:28:33 +01:00
Jakob Borg
413c8cf4ea
lib/connections: Use adaptive write size for rate limited connections (fixes #8630) (#8631) 2022-11-03 15:44:46 +01:00
greatroar
8065cf7e97
lib: Factor out getting IP address from net.Addr (#8538)
... and add fast paths for common cases.
2022-09-14 08:44:46 +02:00
luzpaz
837ffcfab5
all: Fix various user-facing and non-user-facing typos (#8509)
Found via `codespell -q 3 -S lang,./gui/default/vendor -L benchs,bu,inflight,ro`
2022-08-23 15:44:11 +02:00
Jakob Borg
b10d106a55
all: Modernize error wrapping (#8491)
This replaces old style errors.Wrap with modern fmt.Errorf and removes
the (direct) dependency on github.com/pkg/errors. A couple of cases are
adjusted by hand as previously errors.Wrap(nil, ...) would return nil,
which is not what fmt.Errorf does.
2022-08-16 10:01:49 +02:00
Jakob Borg
209e68c1ba
build: Update quic-go for Go 1.19 (#8483)
Also adds idle time and keepalive parameters because how this is
configured has changed in the new package version. The values are those
that seems like might already be default, if keep-alives were enabled,
which is not obvious from the doc comments.

Also, Go 1.19 gofmt reformatting of comments.
2022-08-03 15:43:26 +02:00
Jakob Borg
dde275c6cc all: Unused errors 2022-07-28 19:08:51 +02:00
deepsource-autofix[bot]
81d8fa1cb5
all: Fix unused method receiver (further) (#8466)
Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>
2022-07-28 17:55:29 +02:00
deepsource-autofix[bot]
755d21953f
all: Remove unused method receivers (#8462)
Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>
2022-07-28 17:32:45 +02:00
deepsource-autofix[bot]
5130c414da
all: Unused parameter should be replaced by underscore (#8464)
Co-authored-by: deepsource-autofix[bot] <62050782+deepsource-autofix[bot]@users.noreply.github.com>
2022-07-28 17:17:29 +02:00
Jakob Borg
7bdb5faa9c
all: Remove or convert deprecated API usages (#8459) 2022-07-28 17:14:49 +02:00
Jakob Borg
ce0ded7c78
lib/connections: Correct race on loop variable (fixes #8320) (#8321) 2022-05-04 18:16:36 +02:00
Simon Frei
0525c755f4
build: Bump quic-go to 0.26.0 for go1.18 update (#8231)
Merging because I want this in the RC, when we do the RC...
2022-04-12 16:27:29 +04:00
Simon Frei
bcd91f536e
lib/connections: Create the forgotten channel (ref #8263) (#8267) 2022-04-11 17:32:22 +04:00
Jakob Borg
9b09bcc5f1
lib/connections: Always run a simple connection test (#7866) 2022-04-10 20:54:42 +02:00
Simon Frei
b947056e62
lib: Removal global connection registry (#8254) 2022-04-09 16:04:56 +02:00
Simon Frei
072fa46bfd
lib/connections, lib/model: Improve new conn handling (#8253) 2022-04-07 17:35:33 +02:00
greatroar
4be867c560
all: Replace errors.Cause with errors.Is (#8236) 2022-03-26 12:05:57 +02:00
greatroar
bf89bffb0b
lib/config: Decouple VerifyConfiguration from Committer (#7939)
... and remove 8/10 implementations, which were no-ops. This saves code
and time copying configurations.
2021-11-22 08:45:29 +01:00
greatroar
8265dac127
lib/nat: Fix race condition in Mapping (#8042)
The locking protocol in nat.Mapping was racy:

* Mapping.addressMap RLock'd, but then returned a map shared between
  caller and Mapping, so the lock didn't do anything.

* Operations inside Service.{verifyExistingMappings,acquireNewMappings}
  would lock the map for every update, but that means callers to
  Mapping.ExternalAddresses can be looping over the map while the
  Service methods are concurrently modifying it. When the Go runtime
  detects that happening, it panics.

* Mapping.expires was read and updated without locking.

The Service methods now lock the map once and release the lock only when
done.

Also, subscribers no longer get the added and removed addresses, because
none of them were using the information. This was changed for a previous
attempt to retain the fine-grained locking and not reverted because it
simplifies the code.
2021-11-22 08:29:44 +01:00
André Colomb
ec8a748514
lib/syncthing: Clean up / refactor LoadOrGenerateCertificate() utility function. (#8025)
LoadOrGenerateCertificate() takes two file path arguments, but then
uses the locations package to determine the actual path.  Fix that
with a minimally invasive change, by using the arguments instead.
Factor out GenerateCertificate().

The only caller of this function is cmd/syncthing, which passes the
same values, so this is technically a no-op.

* lib/tlsutil: Make storing generated certificate optional.  Avoid
  temporary cert and key files in tests, keep cert in memory.
2021-11-07 23:59:48 +01:00
greatroar
7c292cc812
lib/connections: Fix and optimize registry (#7996)
Registry.Get used a full sort to get the minimum of a list, and the sort
was broken because util.AddressUnspecifiedLess assumed it could find out
whether an address is IPv4 or IPv6 from its Network method. However,
net.(TCP|UDP)Addr.Network always returns "tcp"/"udp".
2021-10-06 10:52:51 +02:00
Simon Frei
70a840d3d5
lib/connections: Remove future go build constraints on quic (#7898) 2021-08-19 21:05:28 +02:00
Jakob Borg
d47745a86b
all: Update build constraints to Go 1.17 style (#7894) 2021-08-17 10:10:41 +02:00
Audrius Butkevicius
fe77fac23f
Update quic to 0.22.0 to support RFC9000, enable batch reads (#7862)
* Update quic to 0.22.0 to support RFC9000, enable batch reads
* Remove wrappers that are not needed anymore
2021-08-05 05:44:22 +02:00
greatroar
1e21042138
lib/connections: switch statement to get the QUIC network (#7816) 2021-07-10 13:53:51 +02:00
Chih-Hsuan Yen
11c57b9097
lib/connections: Resolve IPv6 for quic6:// peers (fixes #7809) (#7810)
Before this patch, IPv4-compatible addresses (::ffff:aaa.bbb.ccc.ddd)
may be used if a quic6://some.domain:port is specified and both IPv4 and
IPv6 addresses exist for that domain name.
2021-07-05 13:19:56 +02:00