Commit Graph

56 Commits

Author SHA1 Message Date
Hans Hasselberg 24c6ce0be0
tls: consider presented intermediates during server connection tls handshake. (#10964)
* use intermediates when verifying

* extract connection state

* remove useless import

* add changelog entry

* golint

* better error

* wording

* collect errors

* use SAN.DNSName instead of CommonName

* Add test for unknown intermediate

* improve changelog entry
2021-09-09 21:48:54 +02:00
Evan Culver 93f94ac24f
rpc: authorize raft requests (#10925) 2021-08-26 15:04:32 -07:00
Daniel Nephin 9c6458c6c2 rename GRPC->XDS where appropriate 2021-07-09 12:17:45 -04:00
Daniel Nephin e226733b26 fix 64-bit aligment for 32-bit platforms
sync/atomic must be used with 64-bit aligned fields, and that alignment is difficult to
ensure unless the field is the first one in the struct.

https://golang.org/pkg/sync/atomic/#pkg-note-BUG.
2021-06-29 16:10:21 -04:00
Daniel Nephin 4cc444e15f Invert the logic of outgoingRPCTLSDisabled
To remove the double negatives, which should make it easier to read.
2021-06-24 19:25:02 -04:00
Daniel Nephin 77dde1df38 tlsutil: inline verifyIncomingHTTPS
This function was only used in one place, and the indirection makes it slightly
harder to see what the one caller is doing. Since it's only accesing a couple fields
it seems like the logic can exist in the one caller.
2021-06-24 19:25:02 -04:00
Daniel Nephin 7342c7e977 tlsutil: remove indirection and duplication
VerifyIncomingRPC and verifyIncomingRPC were duplicate functions, and
once one is removed, Config.verifyIncomingRPC is only called in one place.

Remove 2 of the 3 functions to make the behaviour easier to follow (less indirection).
2021-06-24 18:43:30 -04:00
Daniel Nephin 9f9ffd990d tlsutil: remove unnecessary getter functions
These functions did nothing but hide the fields they were returning.
2021-06-24 18:43:29 -04:00
Daniel Nephin b30ec82d2d tlsutil: unexport and remove indirection
Unexport outgoingALPNRPCConfig since it is only used internally
Remove the MutualTLSCapable->mutualTLSCapable indirection, we only need the exported method.
Inline enableAgentTLSForChecks to make it more clear what it does, since it only has a single caller and is wrapping a single field lookup.
2021-06-24 18:43:29 -04:00
Daniel Nephin 6de514fbd1 tlsutil: fix default server name for health checks
Don't use the agent node name or agent server name when EnableAgentTLSForChecks=false.
2021-06-24 13:49:58 -04:00
Daniel Nephin 86c9cb037f tlsutil: reduce interface provided to auto-config
Replace two methods with a single one that returns the cert. This moves more
of the logic into the single caller (auto-config).

tlsutil.Configurator is widely used. By keeping it smaller and focused only on storing and
returning TLS config, we make the code easier to follow.

These two methods were more related to auto-config than to tlsutil, so reducing the interface
moves the logic closer to the feature that requires it.
2021-06-22 14:11:28 -04:00
Daniel Nephin 1bdcd3df91 tlsutil: un-ptr and document the manual struct 2021-06-21 12:52:54 -04:00
Daniel Nephin 106384a835 tlsutil: document Configurator and some of its fields 2021-06-21 12:52:54 -04:00
Daniel Nephin 96a1335874 tlsutil: un-ptr and add godoc to autoTLs struct
the autoTLS field on Configurator is only set once. By making it a value receiver it
should be allocated as a single block of memory along with Configurator.

Also add godoc to document what it is used for.
2021-06-21 12:52:54 -04:00
Daniel Nephin 212b8a7b3c tlsutil: remove unused method
Method was only used in tests, and an equivalent function alraedy exists.
2021-06-21 12:52:54 -04:00
Daniel Nephin f2a904db00 tlsutil: unexport two types
These types are only used internally and should not be exported.

Also remove some unnecessary function wrapping.
2021-06-21 12:52:54 -04:00
Daniel Nephin 63fdadfbe3 tlsutil: remove the RLock from log
The log method only needed the lock because it accessed version. By using an atomic
instead of a lock, we can remove the risk that the comments call out, making log safer
to use.

Also updates the log name to match the function names, and adds some comments about how
the lock is used.
2021-06-18 12:13:30 -04:00
Daniel Nephin e89dcf7783 tlsutil: Un-method Configurator.check
The method receiver was never used. Also rename it and add a godoc comment.
2021-06-18 12:13:30 -04:00
Daniel Nephin c9e53783d0 tlsutil: fix a panic
UpdateAutoTLSCA would panic if either of the calls errored, because the read lock was being unlocked
incorrectly.
2021-06-18 12:13:30 -04:00
Daniel Nephin 3717888b30 tlsutil: un-embed the RWMutex
Embedded structs make code harder to navidate because an IDE can not show all uses of
the methods of that field separate from other uses.

Generally embedding of structs should only be used to satisfy an interface, and in this
case the Configurator type does not need to implement the RWMutex interface.
2021-06-17 18:48:44 -04:00
Christopher Broglie 94b02c3954 Add support for configuring TLS ServerName for health checks
Some TLS servers require SNI, but the Golang HTTP client doesn't
include it in the ClientHello when connecting to an IP address. This
change adds a new TLSServerName field to health check definitions to
optionally set it. This fixes #9473.
2021-03-16 18:16:44 -04:00
Mike Morris a343365da7
ci: update to Go 1.15.4 and alpine:3.12 (#9036)
* ci: stop building darwin/386 binaries

Go 1.15 drops support for 32-bit binaries on Darwin https://golang.org/doc/go1.15#darwin

* tls: ConnectionState::NegotiatedProtocolIsMutual is deprecated in Go 1.15, this value is always true

* correct error messages that changed slightly

* Completely regenerate some TLS test data

Co-authored-by: R.B. Boyer <rb@hashicorp.com>
2020-11-13 13:02:59 -05:00
Daniel Nephin 06f8674cb6 tlsutil: remove unused UseTLS field 2020-10-27 16:34:17 -04:00
Tim Arenz 6dbb5f3234
Add support for -ca-path option in the connect envoy command (#8606)
* Add support for -ca-path option in the connect envoy command
* Adding changelog entry
2020-09-08 12:16:16 +02:00
Matt Keeler 76add4f24c
Allow setting verify_incoming* when using auto_encrypt or auto_config (#8394)
Ensure that enabling AutoConfig sets the tls configurator properly

This also refactors the TLS configurator a bit so the naming doesn’t imply only AutoEncrypt as the source of the automatically setup TLS cert info.
2020-07-30 10:15:12 -04:00
Matt Keeler fa6a2b38d9
Add an AutoEncrypt “integration” test
Also fix a bug where Consul could segfault if TLS was enabled but no client certificate was provided. How no one has reported this as a problem I am not sure.
2020-06-30 15:23:29 -04:00
Matt Keeler eda8cb39fd
Implement the insecure version of the Cluster.AutoConfig RPC endpoint
Right now this is only hooked into the insecure RPC server and requires JWT authorization. If no JWT authorizer is setup in the configuration then we inject a disabled “authorizer” to always report that JWT authorization is disabled.
2020-06-17 11:25:29 -04:00
Hans Hasselberg 6626cb69d6
rpc: oss changes for network area connection pooling (#7735) 2020-04-30 22:12:17 +02:00
Hans Hasselberg 6a55f70fa6
tls: remove old ciphers (#7282)
Following advice from:
https://github.com/ssllabs/research/wiki/SSL-and-TLS-Deployment-Best-Practices, this PR removes old ciphers.
2020-03-10 21:44:26 +01:00
R.B. Boyer a7fb26f50f
wan federation via mesh gateways (#6884)
This is like a Möbius strip of code due to the fact that low-level components (serf/memberlist) are connected to high-level components (the catalog and mesh-gateways) in a twisty maze of references which make it hard to dive into. With that in mind here's a high level summary of what you'll find in the patch:

There are several distinct chunks of code that are affected:

* new flags and config options for the server

* retry join WAN is slightly different

* retry join code is shared to discover primary mesh gateways from secondary datacenters

* because retry join logic runs in the *agent* and the results of that
  operation for primary mesh gateways are needed in the *server* there are
  some methods like `RefreshPrimaryGatewayFallbackAddresses` that must occur
  at multiple layers of abstraction just to pass the data down to the right
  layer.

* new cache type `FederationStateListMeshGatewaysName` for use in `proxycfg/xds` layers

* the function signature for RPC dialing picked up a new required field (the
  node name of the destination)

* several new RPCs for manipulating a FederationState object:
  `FederationState:{Apply,Get,List,ListMeshGateways}`

* 3 read-only internal APIs for debugging use to invoke those RPCs from curl

* raft and fsm changes to persist these FederationStates

* replication for FederationStates as they are canonically stored in the
  Primary and replicated to the Secondaries.

* a special derivative of anti-entropy that runs in secondaries to snapshot
  their local mesh gateway `CheckServiceNodes` and sync them into their upstream
  FederationState in the primary (this works in conjunction with the
  replication to distribute addresses for all mesh gateways in all DCs to all
  other DCs)

* a "gateway locator" convenience object to make use of this data to choose
  the addresses of gateways to use for any given RPC or gossip operation to a
  remote DC. This gets data from the "retry join" logic in the agent and also
  directly calls into the FSM.

* RPC (`:8300`) on the server sniffs the first byte of a new connection to
  determine if it's actually doing native TLS. If so it checks the ALPN header
  for protocol determination (just like how the existing system uses the
  type-byte marker).

* 2 new kinds of protocols are exclusively decoded via this native TLS
  mechanism: one for ferrying "packet" operations (udp-like) from the gossip
  layer and one for "stream" operations (tcp-like). The packet operations
  re-use sockets (using length-prefixing) to cut down on TLS re-negotiation
  overhead.

* the server instances specially wrap the `memberlist.NetTransport` when running
  with gateway federation enabled (in a `wanfed.Transport`). The general gist is
  that if it tries to dial a node in the SAME datacenter (deduced by looking
  at the suffix of the node name) there is no change. If dialing a DIFFERENT
  datacenter it is wrapped up in a TLS+ALPN blob and sent through some mesh
  gateways to eventually end up in a server's :8300 port.

* a new flag when launching a mesh gateway via `consul connect envoy` to
  indicate that the servers are to be exposed. This sets a special service
  meta when registering the gateway into the catalog.

* `proxycfg/xds` notice this metadata blob to activate additional watches for
  the FederationState objects as well as the location of all of the consul
  servers in that datacenter.

* `xds:` if the extra metadata is in place additional clusters are defined in a
  DC to bulk sink all traffic to another DC's gateways. For the current
  datacenter we listen on a wildcard name (`server.<dc>.consul`) that load
  balances all servers as well as one mini-cluster per node
  (`<node>.server.<dc>.consul`)

* the `consul tls cert create` command got a new flag (`-node`) to help create
  an additional SAN in certs that can be used with this flavor of federation.
2020-03-09 15:59:02 -05:00
Hans Hasselberg 322367d476
tls: support tls 1.3 (#7325) 2020-02-19 23:22:31 +01:00
Chris Piraino 3dd0b59793
Allow users to configure either unstructured or JSON logging (#7130)
* hclog Allow users to choose between unstructured and JSON logging
2020-01-28 17:50:41 -06:00
Hans Hasselberg e00effa325
agent: setup grpc server with auto_encrypt certs and add -https-port (#7086)
* setup grpc server with TLS config used across consul.
* add -https-port flag
2020-01-22 11:32:17 +01:00
Hans Hasselberg 368d5c643f
tls: auto_encrypt and verify_incoming (#6811) (#6899)
* relax requirements for auto_encrypt on server
* better error message when auto_encrypt and verify_incoming on
* docs: explain verify_incoming on Consul clients.
2019-12-06 21:36:13 +01:00
Hans Hasselberg 707efc5b39 tls: return auto_encrypt cert for listeners (#6489)
* fix cert check

* fix lock

* add tests

* test: add comments describing expected behavior for auto-encrypt and manual certificates

* test: expect nil *tls.Certificate for empty string certFile or keyFile arg
2019-11-12 13:40:32 -05:00
Hans Hasselberg 73c4e9f07c
tls: auto_encrypt enables automatic RPC cert provisioning for consul clients (#5597) 2019-06-27 22:22:07 +02:00
Hans Hasselberg d511e86491
agent: enable reloading of tls config (#5419)
This PR introduces reloading tls configuration. Consul will now be able to reload the TLS configuration which previously required a restart. It is not yet possible to turn TLS ON or OFF with these changes. Only when TLS is already turned on, the configuration can be reloaded. Most importantly the certificates and CAs.
2019-03-13 10:29:06 +01:00
R.B. Boyer 91e78e00c7
fix typos reported by golangci-lint:misspell (#5434) 2019-03-06 11:13:28 -06:00
Hans Hasselberg af1de3c81c
tlsutil: don't use `server_name` config for RPC connections (#5394)
* server name only for outgoing https for checks
2019-03-05 21:35:43 +01:00
Hans Hasselberg c6ad6daa09
Centralise tls configuration part 2 (#5374)
This PR is based on #5366 and continues to centralise the tls configuration in order to be reloadable eventually!

This PR is another refactoring. No tests are changed, beyond calling other functions or cosmetic stuff. I added a bunch of tests, even though they might be redundant.
2019-02-27 10:14:59 +01:00
Hans Hasselberg 75ababb54f
Centralise tls configuration part 1 (#5366)
In order to be able to reload the TLS configuration, we need one way to generate the different configurations.

This PR introduces a `tlsutil.Configurator` which holds a `tlsutil.Config`. Afterwards it is responsible for rendering every `tls.Config`. In this particular PR I moved `IncomingHTTPSConfig`, `IncomingTLSConfig`, and `OutgoingTLSWrapper` into `tlsutil.Configurator`.

This PR is a pure refactoring - not a single feature added. And not a single test added. I only slightly modified existing tests as necessary.
2019-02-26 16:52:07 +01:00
Hans Hasselberg d7e96cd4ae agent: honor when ca is set but verify_outgoing is disabled (#4826)
* honor when verify_outgoing is false but ca is set

* Remove code that exists only for tests

* fix formatting
2018-12-17 09:56:18 -08:00
Jack Pearkes 9d170164e4
Documentation and changes for `verify_server_hostname` (#5069)
* verify_server_hostname implies verify_outgoing

* mention CVE in the docs.
2018-12-06 13:51:49 -08:00
Devin Canterberry 881d20c606
🐛 Formatting changes only; add missing trailing commas 2018-03-15 10:19:46 -07:00
Devin Canterberry ece32fce53
🔒 Update supported TLS cipher suites
The list of cipher suites included in this commit are consistent with
the values and precedence in the [Golang TLS documentation](https://golang.org/src/crypto/tls/cipher_suites.go).

> **Note:** Cipher suites with RC4 are still included within the list
> of accepted values for compatibility, but **these cipher suites are
> not safe to use** and should be deprecated with warnings and
> subsequently removed. Support for RC4 ciphers has already been
> removed or disabled by default in many prominent browsers and tools,
> including Golang.
>
> **References:**
>
>  * [RC4 on Wikipedia](https://en.wikipedia.org/wiki/RC4)
>  * [Mozilla Security Blog](https://blog.mozilla.org/security/2015/09/11/deprecating-the-rc4-cipher/)
2018-03-15 10:19:46 -07:00
James Phillips e8eafc4809
Removes stale TLS config clone() in favor of new supported method. 2018-01-10 15:24:26 -08:00
Kyle Havlovitz e4af6583f5 Add a path for transitioning to TLS on an existing cluster (#3001)
Fixes #1705
2017-05-10 14:25:48 -07:00
Kyle Havlovitz 42cf797ad9 Add TLS cipher suite options and CA path support (#2963)
This patch adds options to configure the available
TLS cipher suites and adds support for a path
for multiple CA certificates.

Fixes #2959
2017-04-27 01:29:39 -07:00
Frank Schroeder 9de4555c0c golint: Untangle if blocks with return in else 2017-04-25 09:26:13 -07:00
Kyle Havlovitz 086975ac0a
Add TLSMinVersion to config options 2017-02-01 16:20:33 -05:00