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Pull request: 3157 excessive ptrs

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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
parent 57171f0a61
commit 12ee287d0b
8 changed files with 46 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
internal/aghnet/arpdb_linux.go
View File

@@ -38,12 +38,17 @@ func newARPDB() (arp *arpdbs) {
fsys: rootDirFS,
filename: "proc/net/arp",
},
// Then, try "arp -a".
// Then, try "arp -a -n".
&cmdARPDB{
parse: parseF,
ns: ns,
cmd: "arp",
args: []string{"-a"},
// Use -n flag to avoid resolving the hostnames of the neighbors.
// By default ARP attempts to resolve the hostnames via DNS. See
// man 8 arp.
//
// See also https://github.com/AdguardTeam/AdGuardHome/issues/3157.
args: []string{"-a", "-n"},
},
// Finally, try "ip neigh".
&cmdARPDB{
@@ -109,11 +114,11 @@ func (arp *fsysARPDB) Neighbors() (ns []Neighbor) {
return arp.ns.clone()
}
// parseArpAWrt parses the output of the "arp -a" command on OpenWrt. The
// parseArpAWrt parses the output of the "arp -a -n" command on OpenWrt. The
// expected input format:
//
// IP address HW type Flags HW address Mask Device
// 192.168.11.98 0x1 0x2 5a:92:df:a9:7e:28 * wan
// IP address HW type Flags HW address Mask Device
// 192.168.11.98 0x1 0x2 5a:92:df:a9:7e:28 * wan
//
func parseArpAWrt(sc *bufio.Scanner, lenHint int) (ns []Neighbor) {
if !sc.Scan() {
@@ -153,8 +158,8 @@ func parseArpAWrt(sc *bufio.Scanner, lenHint int) (ns []Neighbor) {
return ns
}
// parseArpA parses the output of the "arp -a" command on Linux. The expected
// input format:
// parseArpA parses the output of the "arp -a -n" command on Linux. The
// expected input format:
//
// hostname (192.168.1.1) at ab:cd:ef:ab:cd:ef [ether] on enp0s3
//