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https://github.com/netbirdio/netbird.git
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9bc7b9e897
This PR implements the following posture checks: * Agent minimum version allowed * OS minimum version allowed * Geo-location based on connection IP For the geo-based location, we rely on GeoLite2 databases which are free IP geolocation databases. MaxMind was tested and we provide a script that easily allows to download of all necessary files, see infrastructure_files/download-geolite2.sh. The OpenAPI spec should extensively cover the life cycle of current version posture checks.
100 lines
2.4 KiB
Go
100 lines
2.4 KiB
Go
package posture
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import (
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"strings"
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"github.com/hashicorp/go-version"
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nbpeer "github.com/netbirdio/netbird/management/server/peer"
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log "github.com/sirupsen/logrus"
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)
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type MinVersionCheck struct {
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MinVersion string
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}
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type MinKernelVersionCheck struct {
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MinKernelVersion string
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}
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type OSVersionCheck struct {
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Android *MinVersionCheck
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Darwin *MinVersionCheck
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Ios *MinVersionCheck
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Linux *MinKernelVersionCheck
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Windows *MinKernelVersionCheck
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}
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var _ Check = (*OSVersionCheck)(nil)
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func (c *OSVersionCheck) Check(peer nbpeer.Peer) (bool, error) {
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peerGoOS := peer.Meta.GoOS
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switch peerGoOS {
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case "android":
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return checkMinVersion(peerGoOS, peer.Meta.OSVersion, c.Android)
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case "darwin":
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return checkMinVersion(peerGoOS, peer.Meta.OSVersion, c.Darwin)
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case "ios":
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return checkMinVersion(peerGoOS, peer.Meta.OSVersion, c.Ios)
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case "linux":
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kernelVersion := strings.Split(peer.Meta.KernelVersion, "-")[0]
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return checkMinKernelVersion(peerGoOS, kernelVersion, c.Linux)
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case "windows":
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return checkMinKernelVersion(peerGoOS, peer.Meta.KernelVersion, c.Windows)
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}
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return true, nil
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}
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func (c *OSVersionCheck) Name() string {
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return OSVersionCheckName
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}
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func checkMinVersion(peerGoOS, peerVersion string, check *MinVersionCheck) (bool, error) {
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if check == nil {
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log.Debugf("peer %s OS is not allowed in the check", peerGoOS)
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return false, nil
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}
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peerNBVersion, err := version.NewVersion(peerVersion)
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if err != nil {
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return false, err
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}
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constraints, err := version.NewConstraint(">= " + check.MinVersion)
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if err != nil {
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return false, err
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}
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if constraints.Check(peerNBVersion) {
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return true, nil
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}
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log.Debugf("peer %s OS version %s is older than minimum allowed version %s", peerGoOS, peerVersion, check.MinVersion)
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return false, nil
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}
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func checkMinKernelVersion(peerGoOS, peerVersion string, check *MinKernelVersionCheck) (bool, error) {
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if check == nil {
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log.Debugf("peer %s OS is not allowed in the check", peerGoOS)
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return false, nil
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}
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peerNBVersion, err := version.NewVersion(peerVersion)
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if err != nil {
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return false, err
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}
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constraints, err := version.NewConstraint(">= " + check.MinKernelVersion)
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if err != nil {
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return false, err
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}
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if constraints.Check(peerNBVersion) {
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return true, nil
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}
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log.Debugf("peer %s kernel version %s is older than minimum allowed version %s", peerGoOS, peerVersion, check.MinKernelVersion)
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return false, nil
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}
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