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Rework map session

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This commit restructures the map session in to a struct
holding the state of what is needed during its lifetime.

For streaming sessions, the event loop is structured a
bit differently not hammering the clients with updates
but rather batching them over a short, configurable time
which should significantly improve cpu usage, and potentially
flakyness.

The use of Patch updates has been dialed back a little as
it does not look like its a 100% ready for prime time. Nodes
are now updated with full changes, except for a few things
like online status.

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This commit is contained in:
Kristoffer Dalby 2024-02-23 10:59:24 +01:00 • committed by Juan Font
parent dd693c444c
commit 58c94d2bd3
35 changed files with 1803 additions and 1716 deletions
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41
hscontrol/policy/acls.go
View file

@ -114,7 +114,7 @@ func LoadACLPolicyFromBytes(acl []byte, format string) (*ACLPolicy, error) {
return &policy, nil
}
func GenerateFilterAndSSHRules(
func GenerateFilterAndSSHRulesForTests(
policy *ACLPolicy,
node *types.Node,
peers types.Nodes,
@ -124,40 +124,31 @@ func GenerateFilterAndSSHRules(
return tailcfg.FilterAllowAll, &tailcfg.SSHPolicy{}, nil
}
rules, err := policy.generateFilterRules(node, peers)
rules, err := policy.CompileFilterRules(append(peers, node))
if err != nil {
return []tailcfg.FilterRule{}, &tailcfg.SSHPolicy{}, err
}
log.Trace().Interface("ACL", rules).Str("node", node.GivenName).Msg("ACL rules")
var sshPolicy *tailcfg.SSHPolicy
sshRules, err := policy.generateSSHRules(node, peers)
sshPolicy, err := policy.CompileSSHPolicy(node, peers)
if err != nil {
return []tailcfg.FilterRule{}, &tailcfg.SSHPolicy{}, err
}
log.Trace().
Interface("SSH", sshRules).
Str("node", node.GivenName).
Msg("SSH rules")
if sshPolicy == nil {
sshPolicy = &tailcfg.SSHPolicy{}
}
sshPolicy.Rules = sshRules
return rules, sshPolicy, nil
}
// generateFilterRules takes a set of nodes and an ACLPolicy and generates a
// CompileFilterRules takes a set of nodes and an ACLPolicy and generates a
// set of Tailscale compatible FilterRules used to allow traffic on clients.
func (pol *ACLPolicy) generateFilterRules(
node *types.Node,
peers types.Nodes,
func (pol *ACLPolicy) CompileFilterRules(
nodes types.Nodes,
) ([]tailcfg.FilterRule, error) {
if pol == nil {
return tailcfg.FilterAllowAll, nil
}
rules := []tailcfg.FilterRule{}
nodes := append(peers, node)
for index, acl := range pol.ACLs {
if acl.Action != "accept" {
@ -279,10 +270,14 @@ func ReduceFilterRules(node *types.Node, rules []tailcfg.FilterRule) []tailcfg.F
return ret
}
func (pol *ACLPolicy) generateSSHRules(
func (pol *ACLPolicy) CompileSSHPolicy(
node *types.Node,
peers types.Nodes,
) ([]*tailcfg.SSHRule, error) {
) (*tailcfg.SSHPolicy, error) {
if pol == nil {
return nil, nil
}
rules := []*tailcfg.SSHRule{}
acceptAction := tailcfg.SSHAction{
@ -393,7 +388,9 @@ func (pol *ACLPolicy) generateSSHRules(
})
}
return rules, nil
return &tailcfg.SSHPolicy{
Rules: rules,
}, nil
}
func sshCheckAction(duration string) (*tailcfg.SSHAction, error) {