Pull request: 2846 cover aghnet vol.3

Merge in DNS/adguard-home from 2846-cover-aghnet-vol.3 to master

Updates #2846.

Squashed commit of the following:

commit cb22987c43c17bbc8d098e65639cc84e2284bc7b
Merge: cf995e9d f31ffcc5
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 30 15:01:10 2022 +0300

    Merge branch 'master' into 2846-cover-aghnet-vol.3

commit cf995e9dce635f16e10406a61e2ab12f06407f1f
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Mar 28 18:29:50 2022 +0300

    aghnet: imp tests

commit bc225fe8800633b29216840bc7d5b82d7c2d2bfb
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Mar 28 18:03:06 2022 +0300

    aghnet: imp tests

commit a82eb6045495b94a2e81ced9a3ef5bfe65788e56
Merge: f8081249 0d562a7b
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Mar 28 17:39:13 2022 +0300

    Merge branch 'master' into 2846-cover-aghnet-vol.3

commit f80812490c49f69655d409c6f015b069affa2f19
Merge: edccaa79 3603b1fc
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Mar 28 17:29:20 2022 +0300

    Merge branch 'master' into 2846-cover-aghnet-vol.3

commit edccaa79fca061ffeea1985c293eed123b16a09c
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Mon Mar 28 13:53:40 2022 +0300

    aghnet: imp tests

commit 7c5028c92f0a6680516bda67c73e794182c9b825
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Mar 25 18:01:28 2022 +0300

    aghnet: imp code & docs

commit 7897c6b13e9be340ae8a71947a8a0bab82c682eb
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Fri Mar 25 17:11:46 2022 +0300

    aghnet: imp coverage

commit 1eef110af3bf721a0275c695bf27c31815abff04
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Wed Mar 23 21:10:29 2022 +0300

    all: return byte slice
This commit is contained in:
Eugene Burkov
2022-03-30 15:11:57 +03:00
parent f31ffcc5d1
commit 5e71f5df6a
21 changed files with 789 additions and 391 deletions

View File

@@ -21,8 +21,7 @@ import (
// have a static IP.
func (n interfaceName) dhcpcdStaticConfig(r io.Reader) (subsources []string, cont bool, err error) {
s := bufio.NewScanner(r)
ifaceFound := findIfaceLine(s, string(n))
if !ifaceFound {
if !findIfaceLine(s, string(n)) {
return nil, true, s.Err()
}
@@ -61,9 +60,9 @@ func (n interfaceName) ifacesStaticConfig(r io.Reader) (sub []string, cont bool,
fields := strings.Fields(line)
fieldsNum := len(fields)
// Man page interfaces(5) declares that interface definition
// should consist of the key word "iface" followed by interface
// name, and method at fourth field.
// Man page interfaces(5) declares that interface definition should
// consist of the key word "iface" followed by interface name, and
// method at fourth field.
if fieldsNum >= 4 &&
fields[0] == "iface" && fields[1] == string(n) && fields[3] == "static" {
return nil, false, nil
@@ -78,10 +77,10 @@ func (n interfaceName) ifacesStaticConfig(r io.Reader) (sub []string, cont bool,
}
func ifaceHasStaticIP(ifaceName string) (has bool, err error) {
// TODO(a.garipov): Currently, this function returns the first
// definitive result. So if /etc/dhcpcd.conf has a static IP while
// /etc/network/interfaces doesn't, it will return true. Perhaps this
// is not the most desirable behavior.
// TODO(a.garipov): Currently, this function returns the first definitive
// result. So if /etc/dhcpcd.conf has and /etc/network/interfaces has no
// static IP configuration, it will return true. Perhaps this is not the
// most desirable behavior.
iface := interfaceName(ifaceName)
@@ -95,12 +94,10 @@ func ifaceHasStaticIP(ifaceName string) (has bool, err error) {
FileWalker: iface.ifacesStaticConfig,
filename: "etc/network/interfaces",
}} {
has, err = pair.Walk(aghos.RootDirFS(), pair.filename)
has, err = pair.Walk(rootDirFS, pair.filename)
if err != nil {
return false, err
}
if has {
} else if has {
return true, nil
}
}
@@ -141,13 +138,15 @@ func ifaceSetStaticIP(ifaceName string) (err error) {
gatewayIP := GatewayIP(ifaceName)
add := dhcpcdConfIface(ifaceName, ipNet, gatewayIP, ipNet.IP)
body, err := os.ReadFile("/etc/dhcpcd.conf")
const filename = "/etc/dhcpcd.conf"
body, err := os.ReadFile(filename)
if err != nil && !errors.Is(err, os.ErrNotExist) {
return err
}
body = append(body, []byte(add)...)
err = maybe.WriteFile("/etc/dhcpcd.conf", body, 0o644)
err = maybe.WriteFile(filename, body, 0o644)
if err != nil {
return fmt.Errorf("writing conf: %w", err)
}