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f-25: dhcp: fill db with dhcp data

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Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>
This commit is contained in:
GnomeZworc 2026-04-26 18:08:04 +02:00
commit 5ee2ba1669
Signed by: nicolas.boufideline
GPG key ID: 4406BBBF8845D632
5 changed files with 41 additions and 13 deletions
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12
internal/dhcp/generate.go
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@ -8,7 +8,7 @@ import (
"strings"
)
func GenerateConfig(c Config) (string, error) {
func GenerateConfig(c Config) (string, map[string]string, error) {
mask := fmt.Sprintf("%d.%d.%d.%d", c.Network.Mask[0], c.Network.Mask[1], c.Network.Mask[2], c.Network.Mask[3])
var sb strings.Builder
@ -17,18 +17,20 @@ func GenerateConfig(c Config) (string, error) {
fmt.Fprintf(&sb, "dhcp-option=3,%s\n", c.Gateway.String())
fmt.Fprintf(&sb, "dhcp-option=6,1.1.1.1,8.8.8.8\n\n")
entries := make(map[string]string)
i := 0
for ip := cloneIP(c.Network.IP); c.Network.Contains(ip); incrementIP(ip) {
fmt.Fprintf(&sb, "dhcp-host=00:22:33:%02X:%02X:%02X,%s\n",
(i>>16)&0xFF, (i>>8)&0xFF, i&0xFF, ip)
mac := fmt.Sprintf("00:22:33:%02X:%02X:%02X", (i>>16)&0xFF, (i>>8)&0xFF, i&0xFF)
fmt.Fprintf(&sb, "dhcp-host=%s,%s\n", mac, ip)
entries[ip.String()] = mac
i++
}
outPath := filepath.Join(c.ConfDir, c.Name+".conf")
if err := os.MkdirAll(c.ConfDir, 0755); err != nil {
return "", err
return "", nil, err
}
return outPath, os.WriteFile(outPath, []byte(sb.String()), 0644)
return outPath, entries, os.WriteFile(outPath, []byte(sb.String()), 0644)
}
func incrementIP(ip net.IP) {