func doNetworkGet(d *Daemon, name string) (shared.NetworkConfig, error) {
// Get some information
osInfo, _ := net.InterfaceByName(name)
_, dbInfo, _ := dbNetworkGet(d.db, name)
// Sanity check
if osInfo == nil && dbInfo == nil {
return shared.NetworkConfig{}, os.ErrNotExist
}
// Prepare the response
n := shared.NetworkConfig{}
n.Name = name
n.UsedBy = []string{}
n.Config = map[string]string{}
// Look for containers using the interface
cts, err := dbContainersList(d.db, cTypeRegular)
if err != nil {
return shared.NetworkConfig{}, err
}
for _, ct := range cts {
c, err := containerLoadByName(d, ct)
if err != nil {
return shared.NetworkConfig{}, err
}
if networkIsInUse(c, n.Name) {
n.UsedBy = append(n.UsedBy, fmt.Sprintf("/%s/containers/%s", shared.APIVersion, ct))
}
}
// Set the device type as needed
if osInfo != nil && shared.IsLoopback(osInfo) {
n.Type = "loopback"
} else if dbInfo != nil || shared.PathExists(fmt.Sprintf("/sys/class/net/%s/bridge", n.Name)) {
if dbInfo != nil {
n.Managed = true
n.Config = dbInfo.Config
}
n.Type = "bridge"
} else if shared.PathExists(fmt.Sprintf("/sys/class/net/%s/device", n.Name)) {
n.Type = "physical"
} else if shared.PathExists(fmt.Sprintf("/sys/class/net/%s/bonding", n.Name)) {
n.Type = "bond"
} else {
_, err := exec.Command("ovs-vsctl", "br-exists", n.Name).CombinedOutput()
if err == nil {
n.Type = "bridge"
} else {
n.Type = "unknown"
}
}
return n, nil
}
