Cadoles
/
owrt
10
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Adding uci firewall support 

* Traffic Rules -> uci_firewall_rules.go
 * Redirections -> uci_firewall_redirect.go
 * Custom rules -> uci_firewall_custom_rules.go
This commit is contained in:
Philippe Caseiro 2018-11-07 16:36:45 +01:00
parent 3409ab1960
commit 77fe2a91dd
12 changed files with 230 additions and 38 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
uci.go
View File

@ -13,22 +13,25 @@ type Action struct {
// UCI "Object"
type UCI struct {
exec Executor
Wireless *UCIWirelessConf
exec Executor
CustomFirewallFile string
Wireless *UCIWirelessConf
}
// NewUCI return an UCI instance to interact with UCI
func NewUCI() *UCI {
exec := &localExecutor{}
customFWFile := "/etc/"
wireless := &UCIWirelessConf{}
return &UCI{exec, wireless}
return &UCI{exec, customFWFile, wireless}
}
// NewUCIWithExecutor returns a UCI Instance an gives you the ability to provide
// a different command executor than the default one.
func NewUCIWithExecutor(exec Executor) *UCI {
func NewUCIWithExecutor(exec Executor, customFWFile string) *UCI {
wireless := &UCIWirelessConf{}
return &UCI{exec, wireless}
return &UCI{exec, customFWFile, wireless}
}
// uciRun, private method to run the UCI command
@ -157,3 +160,17 @@ func (u *UCI) GetWifiDeviceByName(name string) map[string]string {
}
return nil
}
// Service make restart services via the UCI client possible
func (u *UCI) Service(name string, action string) error {
sys := NewSystemWithExecutor(u.exec)
res := sys.Service(name, action)
if res.ReturnCode != 0 {
return fmt.Errorf("%d - %s - %s - %s",
res.ReturnCode,
res.Command,
res.Stdout,
res.Stderr)
}
return nil
}

6
uci_dhcp_conf_test.go
View File

@ -20,7 +20,7 @@ const (
func TestNetCreateWithDHCP(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifNameDHCP
@ -44,7 +44,7 @@ func TestNetCreateWithDHCP(t *testing.T) {
func TestNetUpdateWithDHCP(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifNameDHCP
@ -80,7 +80,7 @@ func TestNetUpdateWithDHCP(t *testing.T) {
func TestNetDeleteWithDHCP(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifNameDHCP

109
uci_firewall_custom_rules.go Normal file
View File

@ -0,0 +1,109 @@
package owrt
import (
"fmt"
"io/ioutil"
"os"
"strings"
)
// UCIFirewallCustomRule is the description of an Wireless interface (cf Openwrt doc) on top of an Wireless Device
type UCIFirewallCustomRule struct {
Name string
Rule string
UCI *UCI
}
// NewUCIFirewallCustomRule builds a new UCIFirewallCustomRule instance
func NewUCIFirewallCustomRule(client *UCI) *UCIFirewallCustomRule {
return &UCIFirewallCustomRule{
UCI: client,
}
}
// Create add a new firewall rule in UCI Configuration
func (cr *UCIFirewallCustomRule) Create() error {
var file *os.File
customFWFile := cr.UCI.CustomFirewallFile
fmt.Printf("DEBUG %s\n", customFWFile)
_, stErr := os.Stat(customFWFile)
if os.IsNotExist(stErr) {
var err error
file, err = os.Create(customFWFile)
if err != nil {
return err
}
} else {
var oErr error
file, oErr = os.OpenFile(customFWFile, os.O_RDWR, 0644)
if oErr != nil {
return oErr
}
}
defer file.Close()
line := fmt.Sprintf("%s # %s", cr.Rule, cr.Name)
_, err := file.WriteString(line)
return err
}
// Save commit and relaod configuration (writes it to files !)
func (cr *UCIFirewallCustomRule) Save() error {
reload := cr.UCI.Reload()
if reload.ReturnCode != 0 {
return fmt.Errorf("%d - %s - %s - %s",
reload.ReturnCode,
reload.Command,
reload.Stdout,
reload.Stderr)
}
sErr := cr.UCI.Service("firewall", "restart")
return sErr
}
// Delete remove wifi interface from UCI Configuration
func (cr *UCIFirewallCustomRule) Delete() error {
input, err := ioutil.ReadFile(cr.UCI.CustomFirewallFile)
if err != nil {
return err
}
lines := strings.Split(string(input), "\n")
var out []string
for _, line := range lines {
if !strings.Contains(line, cr.Name) {
out = append(out, line)
}
}
output := strings.Join(out, "\n")
err = ioutil.WriteFile(cr.UCI.CustomFirewallFile, []byte(output), 0644)
return err
}
// Update add a new entry for wifi interface in UCI Configuration
func (cr *UCIFirewallCustomRule) Update() error {
input, err := ioutil.ReadFile(cr.UCI.CustomFirewallFile)
if err != nil {
return err
}
lines := strings.Split(string(input), "\n")
var out []string
for _, line := range lines {
if strings.Contains(line, cr.Name) {
nContent := fmt.Sprintf("%s # %s", cr.Rule, cr.Name)
out = append(out, nContent)
} else {
out = append(out, line)
}
}
output := strings.Join(out, "\n")
err = ioutil.WriteFile(cr.UCI.CustomFirewallFile, []byte(output), 0644)
return err
}

71
uci_firewall_custom_rules_test.go Normal file
View File

@ -0,0 +1,71 @@
package owrt
import (
"io/ioutil"
"os"
"strings"
"testing"
)
const (
ruleA = "iptables -A PREROUTING -i br-dds -p tcp -m tcp --dport 443 -j DNAT --to-destination 10.100.10.1:8443"
ruleB = "iptables -A PREROUTING -i br-dds -p tcp -m tcp --dport 80 -j DNAT --to-destination 10.100.10.1:8080"
)
func TestFWCustomRuleCreate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec, "/tmp/myCustomRuleFile")
_, sErr := os.Stat(uci.CustomFirewallFile)
if os.IsExist(sErr) {
rErr := os.Remove(uci.CustomFirewallFile)
if rErr != nil {
t.Fatal("Error cleaning temporary file")
}
}
custom := NewUCIFirewallCustomRule(uci)
custom.Name = "TestRule"
custom.Rule = ruleA
create := custom.Create()
if create != nil {
t.Fatalf("UCIFirewallCustomRule.Create() failed !\n%s", create.Error())
}
sv := custom.Save()
if sv != nil {
t.Fatalf("%s", sv.Error())
}
}
func TestFWCustomRuleUpdate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec, "/tmp/myCustomRuleFile")
custom := NewUCIFirewallCustomRule(uci)
custom.Name = "SecondRule"
custom.Rule = ruleB
if cr := custom.Create(); cr != nil {
t.Fatalf("UCIFirewallCustomRule.Create() failed !\n%s", cr.Error())
}
b, err := ioutil.ReadFile(uci.CustomFirewallFile)
if err != nil {
t.Fatalf("%s", err.Error())
}
if !strings.Contains(string(b), ruleB) {
t.Fatalf("Rule is not present in %s file", uci.CustomFirewallFile)
}
custom.Rule = ruleA
if uErr := custom.Update(); uErr != nil {
t.Fatalf("UCIFirewallCustomRule.Update() faild ! %s", uErr.Error())
}
sv := custom.Save()
if sv != nil {
t.Fatalf("%s", sv.Error())
}
}

4
uci_firewall_redirect.go
View File

@ -25,9 +25,7 @@ func NewUCIFirewallRedirect() *UCIFirewallRedirect {
// Create add a new firewall rule in UCI Configuration
func (rd *UCIFirewallRedirect) Create(uci *UCI) *Action {
var confPrefix string
confPrefix = fmt.Sprintf("firewall.@redirect[%d]", rd.Index)
confPrefix := fmt.Sprintf("firewall.@redirect[%d]", rd.Index)
conf := make(map[string][]string)

8
uci_firewall_redirect_test.go
View File

@ -18,7 +18,7 @@ const (
func TestFWRedirectCreate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
redirect := NewUCIFirewallRedirect()
redirect.Name = redirectName
@ -38,7 +38,7 @@ func TestFWRedirectCreate(t *testing.T) {
func TestFWRedirectUpdate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
redirect := NewUCIFirewallRedirect()
redirect.Name = redirectName
@ -55,7 +55,7 @@ func TestFWRedirectUpdate(t *testing.T) {
t.Fatalf("UCIFirewallRedirect.Create() failed !")
}
redirect.Name = "Tutu"
redirect.Name = "NewRedirect"
if redirect.Update(uci).ReturnCode != 0 {
t.Fatalf("UCIFirewallRedirect.Update() failed !")
@ -64,7 +64,7 @@ func TestFWRedirectUpdate(t *testing.T) {
func TestFWRedirectDelete(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
redirect := NewUCIFirewallRedirect()
redirect.Name = redirectName

5
uci_firewall_rules.go
View File

@ -22,12 +22,9 @@ func NewUCIFirewallRule() *UCIFirewallRule {
// Create add a new firewall rule in UCI Configuration
func (fw *UCIFirewallRule) Create(uci *UCI) *Action {
var confPrefix string
confPrefix = fmt.Sprintf("firewall.@rule[%d]", fw.Index)
confPrefix := fmt.Sprintf("firewall.@rule[%d]", fw.Index)
conf := make(map[string][]string)
conf["name"] = append(conf["network"], fmt.Sprintf("%s.name", confPrefix), fw.Name)
conf["src"] = append(conf["src"], fmt.Sprintf("%s.src", confPrefix), fw.Src)
conf["target"] = append(conf["target"], fmt.Sprintf("%s.target", confPrefix), fw.Target)

6
uci_firewall_rules_test.go
View File

@ -16,7 +16,7 @@ const (
func TestFWRuleCreate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
rule := NewUCIFirewallRule()
rule.Name = ruleName
@ -34,7 +34,7 @@ func TestFWRuleCreate(t *testing.T) {
func TestFWRuleUpdate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
rule := NewUCIFirewallRule()
rule.Name = ruleName
@ -58,7 +58,7 @@ func TestFWRuleUpdate(t *testing.T) {
func TestFWRuleDelete(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
rule := NewUCIFirewallRule()
rule.Name = ruleName

6
uci_network_interface_test.go
View File

@ -17,7 +17,7 @@ const (
func TestNetCreate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifName
@ -36,7 +36,7 @@ func TestNetCreate(t *testing.T) {
func TestNetUpdate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifName
@ -61,7 +61,7 @@ func TestNetUpdate(t *testing.T) {
func TestNetDelete(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCINetworkInterface(uci)
iface.Name = ifName

14
uci_test.go
View File

@ -8,7 +8,7 @@ import (
func TestUCIAdd(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Add("wireless", "test")
if res.ReturnCode != 0 {
t.Error("Bad Return Code !")
@ -25,7 +25,7 @@ func TestUCIAdd(t *testing.T) {
func TestUCIAddFailed(t *testing.T) {
exec := createMockExecutor("", "BigError", 3)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Add("wireless", "test")
if res.ReturnCode != 3 {
t.Error("Bad Return Code !")
@ -34,7 +34,7 @@ func TestUCIAddFailed(t *testing.T) {
func TestUCIDelete(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Delete("wireless.@wifi-iface[1]")
if res.ReturnCode != 0 {
t.Error("Bad Return Code !")
@ -51,7 +51,7 @@ func TestUCIDelete(t *testing.T) {
func TestUCISet(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Set("wireless.@wifi-iface[1].network", "OrionNetwork")
if res.ReturnCode != 0 {
t.Error("Bad Return Code !")
@ -68,7 +68,7 @@ func TestUCISet(t *testing.T) {
func TestUCICommit(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Commit()
if res.ReturnCode != 0 {
t.Error("Bad Return Code !")
@ -85,7 +85,7 @@ func TestUCICommit(t *testing.T) {
func TestUCIReload(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
res := uci.Reload()
if res.ReturnCode != 0 {
t.Error("Bad Return Code !")
@ -106,7 +106,7 @@ func TestGetWifiIfaceBySSID(t *testing.T) {
t.Fatal(err)
}
exec := createMockExecutor(string(config), "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
uci.LoadWirelessConf()
wifi := uci.GetWifiIfaceBySSID("Pyxis2")
fmt.Printf("%s\n", wifi.Ssid)

4
uci_wireless_conf_test.go
View File

@ -11,7 +11,7 @@ func TestUCIGetWirelessConf(t *testing.T) {
t.Fatal(err)
}
exec := createMockExecutor(string(config), "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
uci.LoadWirelessConf()
if g, e := uci.Wireless.DefaultInterface["Name"], "wifi-iface"; g != e {
t.Fatalf("DefaultDevice.Name is expected to be [%s] and we have [%s]", e, g)
@ -22,7 +22,7 @@ func TestUCIGetWirelessConf(t *testing.T) {
t.Fatal(err)
}
exec = createMockExecutor(string(config), "", 0)
uci = NewUCIWithExecutor(exec)
uci = NewUCIWithExecutor(exec, "")
uci.LoadWirelessConf()
if g, e := uci.Wireless.Interfaces[1].Name, "wifi-iface"; g != e {
t.Fatalf("DefaultDevice.Name is expected to be [%s] and we have [%s]", e, g)

8
uci_wireless_interface_test.go
View File

@ -56,7 +56,7 @@ func TestGetSysDevName(t *testing.T) {
func TestCreate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCIWirelessInterface()
iface.Name = ifaceName
@ -75,7 +75,7 @@ func TestCreate(t *testing.T) {
func TestUpdate(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCIWirelessInterface()
iface.Name = ifaceName
@ -102,7 +102,7 @@ func TestUpdate(t *testing.T) {
func TestDelete(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCIWirelessInterface()
iface.Name = ifaceName
@ -124,7 +124,7 @@ func TestDelete(t *testing.T) {
func TestConnect(t *testing.T) {
exec := createMockExecutor("", "", 0)
uci := NewUCIWithExecutor(exec)
uci := NewUCIWithExecutor(exec, "")
iface := NewUCIWirelessInterface()
iface.Name = ifaceName