tailscale

Commit Graph

Author	SHA1	Message	Date
David Crawshaw	ece138ffc3	staticcheck.conf: remove unnecessary warning Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
Brad Fitzpatrick	bb363095a5	tailcfg: add Debug.RandomizeClientPort Not yet used. Updates #2187 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	38be964c2b	go.mod: update netstack Fixes a atomic alignment crash on 32-bit machines. Fixes #2129 Fixes tailscale/tailscale-synology#66 (same) Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	a0c632f6b5	tstest/integration: fix a race Noticed on a CI failure. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	ad288baaea	net/interfaces: use IPv4 link local if nothing better The only connectivity an AWS Lambda container has is an IPv4 link-local 169.254.x.x address using NAT: 12: vtarget_1@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 7e:1c:3f:00:00:00 brd ff:ff:ff:ff:ff:ff link-netnsid 1 inet 169.254.79.1/32 scope global vtarget_1 valid_lft forever preferred_lft forever If there are no other IPv4/v6 addresses available, and we are running in AWS Lambda, allow IPv4 169.254.x.x addresses to be used. ---- Similarly, a Google Cloud Run container's only connectivity is a Unique Local Address fddf:3978:feb1:d745::c001/128. If there are no other addresses available then allow IPv6 Unique Local Addresses to be used. We actually did this in an earlier release, but now refactor it to work the same way as the IPv4 link-local support is being done. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
julianknodt	3687e5352b	derp: fix traffic handler peer addresses Before it was using the local address and port, so fix that. The fields in the response from `ss` are: State, Recv-Q, Send-Q, Local Address:Port, Peer Address:Port, Process Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
David Crawshaw	297b3d6fa4	staticcheck.conf: turn off noisy lint errors Signed-off-by: David Crawshaw <crawshaw@tailscale.com>	3 years ago
julianknodt	3728634af9	derp: add debug traffic handler This adds a handler on the DERP server for logging bytes send and received by clients of the server, by holding open a connection and recording if there is a difference between the number of bytes sent and received. It sends a JSON marshalled object if there is an increase in the number of bytes. Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
Brad Fitzpatrick	2f4817fe20	tstest/integration: fix race flake Fixes #2172 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	1ae35b6c59	net/{interfaces,netcheck}: rename some fields, funcs Split out of Denton's #2164, to make that diff smaller to review. This change has no behavior changes. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	03311bb0d6	hostinfo: add hostinfo package, move stuff out of controlclient And make it cheaper, so other parts of the code can check the environment. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
David Anderson	0022c3d2e2	tsweb: replace NewMux with a more flexible DebugHandler. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	b461ba9554	control/controlclient: fix typo/braino in error message Thanks to @normanr for noticing. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	0debb99f08	tailcfg: add DNSConfig.ExtraRecords Updates #1748 Updates #1235 Updates #2055 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Christine Dodrill	e0f0d10672	tstest/integration/vms: log to t.Logf directly (#2147 ) Previously we used t.Logf indirectly via package log. This worked, but it was not ideal for our needs. It could cause the streams of output to get crossed. This change uses a logger.FuncWriter every place log.Output was previously used, which will more correctly write log information to the right test output stream. Signed-off-by: Christine Dodrill <xe@tailscale.com>	3 years ago
Maisem Ali	f482321f67	ipn/ipnlocal: support exit node local access switching on darwin. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
Maisem Ali	2919b3e3e6	wf: loopback condition should use MatchTypeFlagsAllSet. Signed-off-by: Maisem Ali <maisem@tailscale.com>	3 years ago
David Anderson	48c25fa36f	tsweb: fold StdHandlerOpts and StdHandler200s with StdHandler. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	72343fbbec	tsweb: register expvars once at startup. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	9337826011	net/dns: fix inverted test for NetworkManager version. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	320cc8fa21	net/dns: verify that systemd-resolved is actually in charge. It's possible to install a configuration that passes our current checks for systemd-resolved, without actually pointing to systemd-resolved. In that case, we end up programming DNS in resolved, but that config never applies to any name resolution requests on the system. This is quite a far-out edge case, but there's a simple additional check we can do: if the header comment names systemd-resolved, there should be a single nameserver in resolv.conf pointing to 127.0.0.53. If not, the configuration should be treated as an unmanaged resolv.conf. Fixes #2136. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	e7164425b3	net/dns: don't use NetworkManager for DNS on very old NetworkManagers. Fixes #1945. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
David Anderson	ac07ff43bf	cmd/tailscaled: start after NetworkManager and systemd-resolved. The dependency is a "soft" ordering dependency only, meaning that tailscaled will start after those services if those services were going to be run anyway, but doesn't force either of them to run. That's why it's safe to specify this dependency unconditionally, even for systems that don't run those services. Updates #2127. Signed-off-by: David Anderson <danderson@tailscale.com>	3 years ago
Brad Fitzpatrick	cd282ec00f	tailcfg: add DNSConfig.CertDomains Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	082cc1b0a7	tstest/integration: reenable TestAddPingRequest Failure understood now; see: https://github.com/tailscale/tailscale/pull/2088#issuecomment-859896598 As of `333e9e75d4`, PingRequest is now safe for the server to send multiple times, without fear of the client handling it multiple times. Fixes #2079 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Brad Fitzpatrick	333e9e75d4	tailcfg, control/controlclient: clarify more, enforce PingRequest.URL is unique Updates #2079 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Denton Gentry	c61d777705	tstest/integration: disable TestAddPingRequest Failing often now, we don't want people to get used to routinely ignoring test failures. Can be re-enabled when https://github.com/tailscale/tailscale/issues/2079 is resolved. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Denton Gentry	857bc4a752	hostinfo: capitalization of AWS Missed one comment from https://github.com/tailscale/tailscale/pull/1868 should be isAWSLambda not isAwsLambda Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Denton Gentry	4b71291cdb	hostinfo: detect when running in Azure App Service. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Denton Gentry	3ab587abe7	hostinfo: detect Heroku Dyno. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Denton Gentry	3c1a73d370	hostinfo: detect AWS Lambda as a container. AWS Lambda uses Docker containers but does not have the string "docker" in its /proc/1/cgroup. Infer AWS Lambda via the environment variables it sets. Signed-off-by: Denton Gentry <dgentry@tailscale.com>	3 years ago
Brad Fitzpatrick	cc6ab0a70f	ipn/ipnlocal: retry peerapi listen on Android, like we do on Windows Updates #1960 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Julian Knodt	525eb5ce41	Merge pull request #2092 from tailscale/queue_latency derp: add pkt queue latency timer	3 years ago
julianknodt	fe54721e31	derp: add pkt queue latency timer It would be useful to know the time that packets spend inside of a queue before they are sent off, as that can be indicative of the load the server is handling (and there was also an existing TODO). This adds a simple exponential moving average metric to track the average packet queue duration. Changes during review: Add CAS loop for recording queue timing w/ expvar.Func, rm snake_case, annotate in milliseconds, convert Signed-off-by: julianknodt <julianknodt@gmail.com>	3 years ago
Brad Fitzpatrick	80a4052593	cmd/tailscale, wgengine, tailcfg: don't assume LastSeen is present [mapver 20] Updates #2107 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	3 years ago
Christine Dodrill	8b2b899989	tstest/integration: test Alpine Linux (#2098 ) Alpine Linux[1] is a minimal Linux distribution built around musl libc. It boots very quickly, requires very little ram and is as close as you can get to an ideal citizen for testing Tailscale on musl. Alpine has a Tailscale package already[2], but this patch also makes it easier for us to provide an Alpine Linux package off of pkgs in the future. Alpine only offers Tailscale on the rolling-release edge branch. [1]: https://alpinelinux.org/ [2]: https://pkgs.alpinelinux.org/packages?name=tailscale&branch=edge Updates #1988 Signed-off-by: Christine Dodrill <xe@tailscale.com>	3 years ago
Brad Fitzpatrick	0affcd4e12	tstest/integration: add some debugging for TestAddPingRequest flakes This fails pretty reliably with a lot of output now showing what's happening: TS_DEBUG_MAP=1 go test --failfast -v -run=Ping -race -count=20 ./tstest/integration --verbose-tailscaled I haven't dug into the details yet, though. Updates #2079	4 years ago
Brad Fitzpatrick	ee3df2f720	tstest/integration: rename ambiguous --verbose test flag Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Fletcher Nichol	a49df5cfda	wgenine/router: fix OpenBSD route creation The route creation for the `tun` device was augmented in #1469 but didn't account for adding IPv4 vs. IPv6 routes. There are 2 primary changes as a result: * Ensure that either `-inet` or `-inet6` was used in the [`route(8)`](https://man.openbsd.org/route) command * Use either the `localAddr4` or `localAddr6` for the gateway argument depending which destination network is being added The basis for the approach is based on the implementation from `router_userspace_bsd.go`, including the `inet()` helper function. Fixes #2048 References #1469 Signed-off-by: Fletcher Nichol <fnichol@nichol.ca>	4 years ago
Dave Anderson	144c68b80b	net/dns: avoid using NetworkManager as much as possible. (#1945 ) Addresses #1699 as best as possible. Signed-off-by: David Anderson <danderson@tailscale.com>	4 years ago
Maisem Ali	f944614c5c	cmd/tailscale/web: add support for QNAP Signed-off-by: Maisem Ali <maisem@tailscale.com>	4 years ago
Adrian Dewhurst	8b11937eaf	net/dns/resolver: permit larger max responses, signal truncation This raises the maximum DNS response message size from 512 to 4095. This should be large enough for almost all situations that do not need TCP. We still do not recognize EDNS, so we will still forward requests that claim support for a larger response size than 4095 (that will be solved later). For now, when a response comes back that is too large to fit in our receive buffer, we now set the truncation flag in the DNS header, which is an improvement from before but will prompt attempts to use TCP which isn't supported yet. On Windows, WSARecvFrom into a buffer that's too small returns an error in addition to the data. On other OSes, the extra data is silently discarded. In this case, we prefer the latter so need to catch the error on Windows. Partially addresses #1123 Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>	4 years ago
Brad Fitzpatrick	fc5fba0fbf	client/tailscale: document SetDNS more Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Brad Fitzpatrick	796e222901	client/tailscale: add SetDNS func Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago
Simeng He	f0121468f4	control/controlclient: add Pinger interface, Options.Pinger Plumbs down a pinger to the direct to enable client to client Ping functionality from control. Signed-off-by: Simeng He <simeng@tailscale.com>	4 years ago
Matt Layher	6956645ec8	go.mod: bump github.com/mdlayher/netlink to v1.4.1 Signed-off-by: Matt Layher <mdlayher@gmail.com>	4 years ago
Christine Dodrill	b402e76185	.github/workflows: add integration test with a custom runner (#2044 ) This runner is in my homelab while we muse about a better, more permanent home for these tests. Updates #1988 Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Christine Dodrill	622dc7b093	tstest/integration/vms: download images from s3 (#2035 ) This makes integration tests pull pristine VM images from Amazon S3 if they don't exist on disk. If the S3 fetch fails, it will fall back to grabbing the image from the public internet. The VM images on the public internet are known to be updated without warning and thusly change their SHA256 checksum. This is not ideal for a test that we want to be able to fire and forget, then run reliably for a very long time. This requires an AWS profile to be configured at the default path. The S3 bucket is rigged so that the requester pays. The VM images are currently about 6.9 gigabytes. Please keep this in mind when running these tests on your machine. Documentation was added to the integration test folder to aid others in running these tests on their machine. Some wording in the logs of the tests was altered. Updates #1988 Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Christine Dodrill	3f1405fa2a	tstest/integration/vms: bump images, fix caching bug (#2052 ) Before this redownloaded the image every time. Now it only redownloads it when it needs to. Signed-off-by: Christine Dodrill <xe@tailscale.com>	4 years ago
Brad Fitzpatrick	e29cec759a	ipn/{ipnlocal,localapi}, control/controlclient: add SetDNS localapi Updates #1235 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	4 years ago

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