Shamir seals now come in two varieties: legacy and new-style. Legacy
Shamir is automatically converted to new-style when a rekey operation
is performed. All new Vault initializations using Shamir are new-style.
New-style Shamir writes an encrypted master key to storage, just like
AutoUnseal. The stored master key is encrypted using the shared key that
is split via Shamir's algorithm. Thus when unsealing, we take the key
fragments given, combine them into a Key-Encryption-Key, and use that
to decrypt the master key on disk. Then the master key is used to read
the keyring that decrypts the barrier.
* Work on raft backend
* Add logstore locally
* Add encryptor and unsealable interfaces
* Add clustering support to raft
* Remove client and handler
* Bootstrap raft on init
* Cleanup raft logic a bit
* More raft work
* Work on TLS config
* More work on bootstrapping
* Fix build
* More work on bootstrapping
* More bootstrapping work
* fix build
* Remove consul dep
* Fix build
* merged oss/master into raft-storage
* Work on bootstrapping
* Get bootstrapping to work
* Clean up FMS and node-id
* Update local node ID logic
* Cleanup node-id change
* Work on snapshotting
* Raft: Add remove peer API (#906)
* Add remove peer API
* Add some comments
* Fix existing snapshotting (#909)
* Raft get peers API (#912)
* Read raft configuration
* address review feedback
* Use the Leadership Transfer API to step-down the active node (#918)
* Raft join and unseal using Shamir keys (#917)
* Raft join using shamir
* Store AEAD instead of master key
* Split the raft join process to answer the challenge after a successful unseal
* get the follower to standby state
* Make unseal work
* minor changes
* Some input checks
* reuse the shamir seal access instead of new default seal access
* refactor joinRaftSendAnswer function
* Synchronously send answer in auto-unseal case
* Address review feedback
* Raft snapshots (#910)
* Fix existing snapshotting
* implement the noop snapshotting
* Add comments and switch log libraries
* add some snapshot tests
* add snapshot test file
* add TODO
* More work on raft snapshotting
* progress on the ConfigStore strategy
* Don't use two buckets
* Update the snapshot store logic to hide the file logic
* Add more backend tests
* Cleanup code a bit
* [WIP] Raft recovery (#938)
* Add recovery functionality
* remove fmt.Printfs
* Fix a few fsm bugs
* Add max size value for raft backend (#942)
* Add max size value for raft backend
* Include physical.ErrValueTooLarge in the message
* Raft snapshot Take/Restore API (#926)
* Inital work on raft snapshot APIs
* Always redirect snapshot install/download requests
* More work on the snapshot APIs
* Cleanup code a bit
* On restore handle special cases
* Use the seal to encrypt the sha sum file
* Add sealer mechanism and fix some bugs
* Call restore while state lock is held
* Send restore cb trigger through raft log
* Make error messages nicer
* Add test helpers
* Add snapshot test
* Add shamir unseal test
* Add more raft snapshot API tests
* Fix locking
* Change working to initalize
* Add underlying raw object to test cluster core
* Move leaderUUID to core
* Add raft TLS rotation logic (#950)
* Add TLS rotation logic
* Cleanup logic a bit
* Add/Remove from follower state on add/remove peer
* add comments
* Update more comments
* Update request_forwarding_service.proto
* Make sure we populate all nodes in the followerstate obj
* Update times
* Apply review feedback
* Add more raft config setting (#947)
* Add performance config setting
* Add more config options and fix tests
* Test Raft Recovery (#944)
* Test raft recovery
* Leave out a node during recovery
* remove unused struct
* Update physical/raft/snapshot_test.go
* Update physical/raft/snapshot_test.go
* fix vendoring
* Switch to new raft interface
* Remove unused files
* Switch a gogo -> proto instance
* Remove unneeded vault dep in go.sum
* Update helper/testhelpers/testhelpers.go
Co-Authored-By: Calvin Leung Huang <cleung2010@gmail.com>
* Update vault/cluster/cluster.go
* track active key within the keyring itself (#6915)
* track active key within the keyring itself
* lookup and store using the active key ID
* update docstring
* minor refactor
* Small text fixes (#6912)
* Update physical/raft/raft.go
Co-Authored-By: Calvin Leung Huang <cleung2010@gmail.com>
* review feedback
* Move raft logical system into separate file
* Update help text a bit
* Enforce cluster addr is set and use it for raft bootstrapping
* Fix tests
* fix http test panic
* Pull in latest raft-snapshot library
* Add comment
* Fix a deadlock if a panic happens during request handling
During request handling, if a panic is created, deferred functions are
run but otherwise execution stops. #5889 changed some locks to
non-defers but had the side effect of causing the read lock to not be
released if the request panicked. This fixes that and addresses a few
other potential places where things could go wrong:
1) In sealInitCommon we always now defer a function that unlocks the
read lock if it hasn't been unlocked already
2) In StepDown we defer the RUnlock but we also had two error cases that
were calling it manually. These are unlikely to be hit but if they were
I believe would cause a panic.
* Add panic recovery test
Move audit.LogInput to sdk/logical. Allow the Data values in audited
logical.Request and Response to implement OptMarshaler, in which case
we delegate hashing/serializing responsibility to them. Add new
ClientCertificateSerialNumber audit request field.
SystemView can now be cast to ExtendedSystemView to expose the Auditor
interface, which allows submitting requests and responses to the audit
broker.
* Port over OSS cluster port refactor components
* Start forwarding
* Cleanup a bit
* Fix copy error
* Return error from perf standby creation
* Add some more comments
* Fix copy/paste error
* Two things:
* Change how we populate and clear leader UUID. This fixes a case where
if a standby disconnects from an active node and reconnects, without the
active node restarting, the UUID doesn't change so triggers on a new
active node don't get run.
* Add a bunch of test helpers and minor updates to things.
This lets other parts of Vault that can't depend on the vault package
take advantage of the subview functionality.
This also allows getting rid of BarrierStorage and vault.Entry, two
totally redundant abstractions.
* Initial work on templating
* Add check for unbalanced closing in front
* Add missing templated assignment
* Add first cut of end-to-end test on templating.
* Make template errors be 403s and finish up testing
* Review feedback
* plumbing request context to expiration manager
* moar context
* address feedback
* only using active context for revoke prefix
* using active context for revoke commands
* cancel tidy on active context
* address feedback
* core: Cancel context before taking state lock
* Create active context outside of postUnseal
* Attempt to drain requests before canceling context
* fix test
* Add request timeouts in normal request path and to expirations
* Add ability to adjust default max request duration
* Some test fixes
* Ensure tests have defaults set for max request duration
* Add context cancel checking to inmem/file
* Fix tests
* Fix tests
* Set default max request duration to basically infinity for this release for BC
* Address feedback
* Tackle #4929 a different way
This turns c.sealed into an atomic, which allows us to call sealInternal
without a lock. By doing so we can better control lock grabbing when a
condition causing the standby loop to get out of active happens. This
encapsulates that logic into two distinct pieces (although they could
be combined into one), and makes lock guarding more understandable.
* Re-add context canceling to the non-HA version of sealInternal
* Return explicitly after stopCh triggered
* This changes the way policies are reported in audit logs.
Previously, only policies tied to tokens would be reported. This could
make it difficult to perform after-the-fact analysis based on both the
initial response entry and further requests. Now, the full set of
applicable policies from both the token and any derived policies from
Identity are reported.
To keep things consistent, token authentications now also return the
full set of policies in api.Secret.Auth responses, so this both makes it
easier for users to understand their actual full set, and it matches
what the audit logs now report.
* Remove a lot of deferred functions in the request path.
There is an interesting benchmark at https://www.reddit.com/r/golang/comments/3h21nk/simple_micro_benchmark_to_measure_the_overhead_of/
It shows that defer actually adds quite a lot of overhead -- maybe 100ns
per call but we defer a *lot* of functions in the request path. So this
removes some of the ones in request handling, ha, barrier, router, and
physical cache.
One meta-note: nearly every metrics function is in a defer which means
every metrics call we add could add a non-trivial amount of time, e.g.
for every 10 extra metrics statements we add 1ms to a request. I don't
know how to solve this right now without doing what I did in some of
these cases and putting that call into a simple function call that then
goes before each return.
* Simplify barrier defer cleanup
Taking inspiration from
https://github.com/golang/go/issues/17604#issuecomment-256384471
suggests that taking the address of a stack variable for use in atomics
works (at least, the race detector doesn't complain) but is doing it
wrong.
The only other change is a change in Leader() detecting if HA is enabled
to fast-path out. This value never changes after NewCore, so we don't
need to grab the read lock to check it.
