This commit rearranges the poll handler to immediatly accept
updates and notify its peers and return, not travel down the
function for a bit. This reduces the DB calls and other
holdups that isnt necessary to send a "lite response", a
map response without peers, or accepting an endpoint update.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This field is no longer used, it was used in our old state
"algorithm" to determine if we should send an update.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit changes the internals of the mapper to
track all the changes to peers over its lifetime.
This means that it no longer depends on the database
and this should hopefully help with locks and timing issues.
When the mapper is created, it needs the current list of peers,
the world view, when the polling session was started. Then as
update changes are called, it tracks the changes and generates
responses based on its internal list.
As a side, the types.Machines and types.MachinesP, as well as
types.Machine being passed as a full struct and pointer has been
changed to always be pointers, everywhere.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commits extends the mapper with functions for creating "delta"
MapResponses for different purposes (peer changed, peer removed, derp).
This wires up the new state management with a new StateUpdate struct
letting the poll worker know what kind of update to send to the
connected nodes.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit replaces the timestamp based state system with a new
one that has update channels directly to the connected nodes. It
will send an update to all listening clients via the polling
mechanism.
It introduces a new package notifier, which has a concurrency safe
manager for all our channels to the connected nodes.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit makes a wrapper function round the normalisation requiring
"stripEmailDomain" which has to be passed in almost all functions of
headscale by loading it from Viper instead.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit allows SSH rules to be assigned to each relevant not and
by doing that allow SSH to be rejected, completing the initial SSH
support.
This commit enables SSH by default and removes the experimental flag.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Prior to the code reorg, we would generate rules from the Policy and
store it on the global object. Now we generate it on the fly for each node
and this commit cleans up the old variables to make sure we have no
unexpected side effects.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
The mapper package contains functions related to creating and marshalling
reponses to machines.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This is a massive commit that restructures the code into modules:
db/
All functions related to modifying the Database
types/
All type definitions and methods that can be exclusivly used on
these types without dependencies
policy/
All Policy related code, now without dependencies on the Database.
policy/matcher/
Dedicated code to match machines in a list of FilterRules
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
