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Pull request 2271: AGDNS-2374-slog-arpdb

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Squashed commit of the following:

commit 355136e6e2f3e77b483d97fbc01fbef562c319eb
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Tue Aug 27 18:09:51 2024 +0300

    arpdb: imp docs

commit 27383833033216ab938b0896dbc39e5af8d4dde9
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Aug 26 19:11:10 2024 +0300

    all: slog arpdb
This commit is contained in:
Stanislav Chzhen
2024-08-27 20:42:10 +03:00
parent 738958d90a
commit 0b8bf13453
8 changed files with 110 additions and 142 deletions
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31
internal/arpdb/arpdb_bsd.go
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@@ -4,17 +4,17 @@ package arpdb
import (
"bufio"
"net"
"net/netip"
"log/slog"
"strings"
"sync"
"github.com/AdguardTeam/golibs/log"
"github.com/AdguardTeam/golibs/logutil/slogutil"
)
func newARPDB() (arp *cmdARPDB) {
func newARPDB(logger *slog.Logger) (arp *cmdARPDB) {
return &cmdARPDB{
parse: parseArpA,
logger: logger,
parse: parseArpA,
ns: &neighs{
mu: &sync.RWMutex{},
ns: make([]Neighbor, 0),
@@ -33,7 +33,7 @@ func newARPDB() (arp *cmdARPDB) {
// The expected input format:
//
// host.name (192.168.0.1) at ff:ff:ff:ff:ff:ff on en0 ifscope [ethernet]
func parseArpA(sc *bufio.Scanner, lenHint int) (ns []Neighbor) {
func parseArpA(logger *slog.Logger, sc *bufio.Scanner, lenHint int) (ns []Neighbor) {
ns = make([]Neighbor, 0, lenHint)
for sc.Scan() {
ln := sc.Text()
@@ -48,26 +48,15 @@ func parseArpA(sc *bufio.Scanner, lenHint int) (ns []Neighbor) {
continue
}
ip, err := netip.ParseAddr(ipStr[1 : len(ipStr)-1])
host := validatedHostname(logger, fields[0])
n, err := newNeighbor(host, ipStr[1:len(ipStr)-1], fields[3])
if err != nil {
log.Debug("arpdb: parsing arp output: ip: %s", err)
logger.Debug("parsing arp output", "line", ln, slogutil.KeyError, err)
continue
}
hwStr := fields[3]
mac, err := net.ParseMAC(hwStr)
if err != nil {
log.Debug("arpdb: parsing arp output: mac: %s", err)
continue
}
ns = append(ns, Neighbor{
IP: ip,
MAC: mac,
Name: validatedHostname(fields[0]),
})
ns = append(ns, *n)
}
return ns