daxi20/AdGuardHome
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cherry-pick: 3157 excessive ptrs

Browse Source 
Merge in DNS/adguard-home from 3157-excessive-ptrs to master

Updates #3157.

Squashed commit of the following:

commit 6803988240dca2f147bb80a5b3f78d7749d2fa14
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 19 14:50:01 2022 +0300

    aghnet: and again

commit 1a7f4d1dbc8fd4d3ae620349917526a75fa71b47
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 19 14:49:20 2022 +0300

    aghnet: docs again

commit d88da1fc7135f3cd03aff10b02d9957c8ffdfd30
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 19 14:47:36 2022 +0300

    aghnet: imp docs

commit c45dbc7800e882c6c4110aab640c32b03046f89a
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 19 14:41:19 2022 +0300

    aghnet: keep alphabetical order

commit b61781785d096ef43f60fb4f1905a4ed3cdf7c68
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 19 13:50:56 2022 +0300

    aghnet: imp code quality

commit 578dbd71ed2f2089c69343d7d4bf8bbc29150ace
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Tue Apr 12 17:02:38 2022 +0300

    aghnet: imp arp container
This commit is contained in:
Eugene Burkov
2022-04-19 15:01:49 +03:00
committed by Ainar Garipov
parent 723279121a
commit c4a13b92d2
39 changed files with 2111 additions and 510 deletions
Download Patch File Download Diff File Expand all files Collapse all files

134
internal/aghnet/net_darwin.go
View File

@@ -4,10 +4,11 @@
package aghnet
import (
"bufio"
"bytes"
"fmt"
"os"
"io"
"regexp"
"strings"
"github.com/AdguardTeam/AdGuardHome/internal/aghos"
"github.com/AdguardTeam/golibs/errors"
@@ -23,7 +24,7 @@ type hardwarePortInfo struct {
static bool
}
func ifaceHasStaticIP(ifaceName string) (bool, error) {
func ifaceHasStaticIP(ifaceName string) (ok bool, err error) {
portInfo, err := getCurrentHardwarePortInfo(ifaceName)
if err != nil {
return false, err
@@ -32,9 +33,10 @@ func ifaceHasStaticIP(ifaceName string) (bool, error) {
return portInfo.static, nil
}
// getCurrentHardwarePortInfo gets information for the specified network interface.
// getCurrentHardwarePortInfo gets information for the specified network
// interface.
func getCurrentHardwarePortInfo(ifaceName string) (hardwarePortInfo, error) {
// First of all we should find hardware port name
// First of all we should find hardware port name.
m := getNetworkSetupHardwareReports()
hardwarePort, ok := m[ifaceName]
if !ok {
@@ -44,6 +46,10 @@ func getCurrentHardwarePortInfo(ifaceName string) (hardwarePortInfo, error) {
return getHardwarePortInfo(hardwarePort)
}
// hardwareReportsReg is the regular expression matching the lines of
// networksetup command output lines containing the interface information.
var hardwareReportsReg = regexp.MustCompile("Hardware Port: (.*?)\nDevice: (.*?)\n")
// getNetworkSetupHardwareReports parses the output of the `networksetup
// -listallhardwareports` command it returns a map where the key is the
// interface name, and the value is the "hardware port" returns nil if it fails
@@ -52,54 +58,44 @@ func getCurrentHardwarePortInfo(ifaceName string) (hardwarePortInfo, error) {
// TODO(e.burkov): There should be more proper approach than parsing the
// command output. For example, see
// https://developer.apple.com/documentation/systemconfiguration.
func getNetworkSetupHardwareReports() map[string]string {
_, out, err := aghos.RunCommand("networksetup", "-listallhardwareports")
func getNetworkSetupHardwareReports() (reports map[string]string) {
_, out, err := aghosRunCommand("networksetup", "-listallhardwareports")
if err != nil {
return nil
}
re, err := regexp.Compile("Hardware Port: (.*?)\nDevice: (.*?)\n")
if err != nil {
return nil
reports = make(map[string]string)
matches := hardwareReportsReg.FindAllSubmatch(out, -1)
for _, m := range matches {
reports[string(m[2])] = string(m[1])
}
m := make(map[string]string)
matches := re.FindAllStringSubmatch(out, -1)
for i := range matches {
port := matches[i][1]
device := matches[i][2]
m[device] = port
}
return m
return reports
}
func getHardwarePortInfo(hardwarePort string) (hardwarePortInfo, error) {
h := hardwarePortInfo{}
// hardwarePortReg is the regular expression matching the lines of networksetup
// command output lines containing the port information.
var hardwarePortReg = regexp.MustCompile("IP address: (.*?)\nSubnet mask: (.*?)\nRouter: (.*?)\n")
_, out, err := aghos.RunCommand("networksetup", "-getinfo", hardwarePort)
func getHardwarePortInfo(hardwarePort string) (h hardwarePortInfo, err error) {
_, out, err := aghosRunCommand("networksetup", "-getinfo", hardwarePort)
if err != nil {
return h, err
}
re := regexp.MustCompile("IP address: (.*?)\nSubnet mask: (.*?)\nRouter: (.*?)\n")
match := re.FindStringSubmatch(out)
if len(match) == 0 {
match := hardwarePortReg.FindSubmatch(out)
if len(match) != 4 {
return h, errors.Error("could not find hardware port info")
}
h.name = hardwarePort
h.ip = match[1]
h.subnet = match[2]
h.gatewayIP = match[3]
if strings.Index(out, "Manual Configuration") == 0 {
h.static = true
}
return h, nil
return hardwarePortInfo{
name: hardwarePort,
ip: string(match[1]),
subnet: string(match[2]),
gatewayIP: string(match[3]),
static: bytes.Index(out, []byte("Manual Configuration")) == 0,
}, nil
}
func ifaceSetStaticIP(ifaceName string) (err error) {
@@ -109,7 +105,7 @@ func ifaceSetStaticIP(ifaceName string) (err error) {
}
if portInfo.static {
return errors.Error("IP address is already static")
return errors.Error("ip address is already static")
}
dnsAddrs, err := getEtcResolvConfServers()
@@ -117,50 +113,62 @@ func ifaceSetStaticIP(ifaceName string) (err error) {
return err
}
args := make([]string, 0)
args = append(args, "-setdnsservers", portInfo.name)
args = append(args, dnsAddrs...)
args := append([]string{"-setdnsservers", portInfo.name}, dnsAddrs...)
// Setting DNS servers is necessary when configuring a static IP
code, _, err := aghos.RunCommand("networksetup", args...)
code, _, err := aghosRunCommand("networksetup", args...)
if err != nil {
return err
}
if code != 0 {
} else if code != 0 {
return fmt.Errorf("failed to set DNS servers, code=%d", code)
}
// Actually configures hardware port to have static IP
code, _, err = aghos.RunCommand("networksetup", "-setmanual",
portInfo.name, portInfo.ip, portInfo.subnet, portInfo.gatewayIP)
code, _, err = aghosRunCommand(
"networksetup",
"-setmanual",
portInfo.name,
portInfo.ip,
portInfo.subnet,
portInfo.gatewayIP,
)
if err != nil {
return err
}
if code != 0 {
} else if code != 0 {
return fmt.Errorf("failed to set DNS servers, code=%d", code)
}
return nil
}
// etcResolvConfReg is the regular expression matching the lines of resolv.conf
// file containing a name server information.
var etcResolvConfReg = regexp.MustCompile("nameserver ([a-zA-Z0-9.:]+)")
// getEtcResolvConfServers returns a list of nameservers configured in
// /etc/resolv.conf.
func getEtcResolvConfServers() ([]string, error) {
body, err := os.ReadFile("/etc/resolv.conf")
func getEtcResolvConfServers() (addrs []string, err error) {
const filename = "etc/resolv.conf"
_, err = aghos.FileWalker(func(r io.Reader) (_ []string, _ bool, err error) {
sc := bufio.NewScanner(r)
for sc.Scan() {
matches := etcResolvConfReg.FindAllStringSubmatch(sc.Text(), -1)
if len(matches) == 0 {
continue
}
for _, m := range matches {
addrs = append(addrs, m[1])
}
}
return nil, false, sc.Err()
}).Walk(rootDirFS, filename)
if err != nil {
return nil, err
}
re := regexp.MustCompile("nameserver ([a-zA-Z0-9.:]+)")
matches := re.FindAllStringSubmatch(string(body), -1)
if len(matches) == 0 {
return nil, errors.Error("found no DNS servers in /etc/resolv.conf")
}
addrs := make([]string, 0)
for i := range matches {
addrs = append(addrs, matches[i][1])
return nil, fmt.Errorf("parsing etc/resolv.conf file: %w", err)
} else if len(addrs) == 0 {
return nil, fmt.Errorf("found no dns servers in %s", filename)
}
return addrs, nil