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update dhcp implementation for use with rocky

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This commit is contained in:
Samuel Lorch 2023-04-24 18:10:06 +02:00
parent a9a0bebc2f
commit 4bd5fba0de
3 changed files with 8 additions and 63 deletions
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26
internal/dhcp_server/apply.go
View file

@ -9,15 +9,10 @@ import (
"nfsense.net/nfsense/internal/definitions/config"
)
const defaultsFile = "/etc/default/isc-dhcp-server"
const dhcpv4File = "/etc/dhcp/dhcpd.conf"
const dhcpv6File = "/etc/dhcp/dhcpd6.conf"
func ApplyDHCPServerConfiguration(currentConfig config.Config, pendingConfig config.Config) error {
defaultsConfig, err := GenerateDHCPServerDefaultsConfiguration(pendingConfig)
if err != nil {
return fmt.Errorf("Generating DHCPServer Defaults Configuration: %w", err)
}
v4Conf, err := GenerateDHCPServerV4Configuration(pendingConfig)
if err != nil {
@ -29,11 +24,6 @@ func ApplyDHCPServerConfiguration(currentConfig config.Config, pendingConfig con
return fmt.Errorf("Generating DHCPServerV6 Configuration: %w", err)
}
err = OverwriteFile(defaultsFile, defaultsConfig)
if err != nil {
return fmt.Errorf("Writing defaults Configuration: %w", err)
}
err = OverwriteFile(dhcpv4File, v4Conf)
if err != nil {
return fmt.Errorf("Writing v4 Configuration: %w", err)
@ -51,24 +41,24 @@ func ApplyDHCPServerConfiguration(currentConfig config.Config, pendingConfig con
if len(pendingConfig.Service.DHCPv4Servers) == 0 && len(pendingConfig.Service.DHCPv6Servers) == 0 {
// if there are no servers stop the service instead
_, err := conn.StopUnitContext(context.Background(), "isc-dhcp-server.service", "replace", nil)
_, err := conn.StopUnitContext(context.Background(), "dhcpd.service", "replace", nil)
if err != nil {
return fmt.Errorf("stopping isc-dhcp-server.service: %w", err)
return fmt.Errorf("stopping dhcpd.service: %w", err)
}
_, err = conn.DisableUnitFilesContext(context.Background(), []string{"isc-dhcp-server.service"}, false)
_, err = conn.DisableUnitFilesContext(context.Background(), []string{"dhcpd.service"}, false)
if err != nil {
return fmt.Errorf("disableing isc-dhcp-server.service: %w", err)
return fmt.Errorf("disableing dhcpd.service: %w", err)
}
} else {
_, err := conn.ReloadOrRestartUnitContext(context.Background(), "isc-dhcp-server.service", "replace", nil)
_, err := conn.ReloadOrRestartUnitContext(context.Background(), "dhcpd.service", "replace", nil)
if err != nil {
return fmt.Errorf("restarting isc-dhcp-server.service: %w", err)
return fmt.Errorf("restarting dhcpd.service: %w", err)
}
_, _, err = conn.EnableUnitFilesContext(context.Background(), []string{"isc-dhcp-server.service"}, false, true)
_, _, err = conn.EnableUnitFilesContext(context.Background(), []string{"dhcpd.service"}, false, true)
if err != nil {
return fmt.Errorf("enableing isc-dhcp-server.service: %w", err)
return fmt.Errorf("enableing dhcpd.service: %w", err)
}
}
return nil

43
internal/dhcp_server/defaults.go
View file

@ -1,43 +0,0 @@
package dhcp
import (
"bytes"
"fmt"
"nfsense.net/nfsense/internal/definitions/config"
"nfsense.net/nfsense/internal/definitions/network"
)
type DHCPServerInterfaces struct {
V4 []string
V6 []string
}
func GenerateDHCPServerDefaultsConfiguration(conf config.Config) (string, error) {
v4 := []string{}
for _, s := range conf.Service.DHCPv4Servers {
if conf.Network.Interfaces[s.Interface].Type == network.Hardware {
v4 = append(v4, *conf.Network.Interfaces[s.Interface].HardwareDevice)
} else {
v4 = append(v4, s.Interface)
}
}
v6 := []string{}
for _, s := range conf.Service.DHCPv6Servers {
if conf.Network.Interfaces[s.Interface].Type == network.Hardware {
v6 = append(v6, *conf.Network.Interfaces[s.Interface].HardwareDevice)
} else {
v6 = append(v6, s.Interface)
}
}
interfaces := DHCPServerInterfaces{
V4: v4,
V6: v6,
}
buf := new(bytes.Buffer)
err := templates.ExecuteTemplate(buf, "default.tmpl", interfaces)
if err != nil {
return "", fmt.Errorf("executing default.tmpl template: %w", err)
}
return buf.String(), nil
}

2
internal/dhcp_server/template/default.tmpl
View file

@ -1,2 +0,0 @@
INTERFACESv4="{{range .V4}}{{.}} {{end}}"
INTERFACESv6="{{range .V6}}{{.}} {{end}}"