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lib/connections, lib/model, gui: Specify allowed networks per device (fixes #219)

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This adds a new config AllowedNetworks per device, which when set should
contain a list of network prefixes (192.168.0.0/126 etc) that are
allowed for the given device. The connection service will not attempt
connections to addresses outside of the given networks and incoming
connections will be rejected as well.

I've added the config to the normal device editor and shown it (when
set) in the device summary on the main screen.

There's a unit test for the IsAllowedNetwork method, I've done some
manual sanity testing on top of that.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4073
This commit is contained in:
Jakob Borg
2017-04-01 09:52:31 +00:00
committed by Audrius Butkevicius
parent 4253f22680
commit c5e0c47989
8 changed files with 199 additions and 63 deletions
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24
lib/config/deviceconfiguration.go
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@@ -18,22 +18,36 @@ type DeviceConfiguration struct {
SkipIntroductionRemovals bool `xml:"skipIntroductionRemovals,attr" json:"skipIntroductionRemovals"`
IntroducedBy protocol.DeviceID `xml:"introducedBy,attr" json:"introducedBy"`
Paused bool `xml:"paused" json:"paused"`
AllowedNetworks []string `xml:"allowedNetwork,omitempty" json:"allowedNetworks"`
}
func NewDeviceConfiguration(id protocol.DeviceID, name string) DeviceConfiguration {
return DeviceConfiguration{
d := DeviceConfiguration{
DeviceID: id,
Name: name,
}
d.prepare()
return d
}
func (orig DeviceConfiguration) Copy() DeviceConfiguration {
c := orig
c.Addresses = make([]string, len(orig.Addresses))
copy(c.Addresses, orig.Addresses)
func (cfg DeviceConfiguration) Copy() DeviceConfiguration {
c := cfg
c.Addresses = make([]string, len(cfg.Addresses))
copy(c.Addresses, cfg.Addresses)
c.AllowedNetworks = make([]string, len(cfg.AllowedNetworks))
copy(c.AllowedNetworks, cfg.AllowedNetworks)
return c
}
func (cfg *DeviceConfiguration) prepare() {
if len(cfg.Addresses) == 0 || len(cfg.Addresses) == 1 && cfg.Addresses[0] == "" {
cfg.Addresses = []string{"dynamic"}
}
if len(cfg.AllowedNetworks) == 0 {
cfg.AllowedNetworks = []string{}
}
}
type DeviceConfigurationList []DeviceConfiguration
func (l DeviceConfigurationList) Less(a, b int) bool {