MagiTrickle/group.go

103 lines
1.6 KiB
Go
Raw Normal View History

2024-08-27 03:07:58 +03:00
package main
2024-08-30 04:30:33 +03:00
import (
"fmt"
2024-09-06 14:24:55 +03:00
netfilterHelper "kvas2-go/netfilter-helper"
2024-08-30 05:27:52 +03:00
"net"
"time"
2024-08-30 04:30:33 +03:00
"kvas2-go/models"
)
2024-08-27 03:07:58 +03:00
type Group struct {
*models.Group
2024-09-06 14:24:55 +03:00
Enabled bool
ipset *netfilterHelper.IPSet
ifaceToIPSet *netfilterHelper.IfaceToIPSet
2024-08-27 03:07:58 +03:00
}
2024-08-30 04:30:33 +03:00
2024-08-30 05:27:52 +03:00
func (g *Group) HandleIPv4(names []string, address net.IP, ttl time.Duration) error {
2024-09-06 14:24:55 +03:00
if !g.Enabled {
2024-08-30 05:27:52 +03:00
return nil
}
for _, domain := range g.Domains {
if !domain.IsEnabled() {
continue
}
for _, name := range names {
if domain.IsMatch(name) {
2024-09-06 14:24:55 +03:00
ttlSeconds := uint32(ttl.Seconds())
return g.ipset.Add(address, &ttlSeconds)
2024-08-30 05:27:52 +03:00
}
}
}
return nil
}
2024-09-06 14:24:55 +03:00
func (g *Group) Enable() error {
if g.Enabled {
2024-08-30 04:30:33 +03:00
return nil
}
2024-09-06 14:24:55 +03:00
defer func() {
if !g.Enabled {
_ = g.Disable()
2024-09-05 03:53:10 +03:00
}
2024-09-06 14:24:55 +03:00
}()
2024-09-05 03:53:10 +03:00
2024-09-06 14:24:55 +03:00
err := g.ipset.Create()
2024-08-30 04:30:33 +03:00
if err != nil {
2024-09-06 14:24:55 +03:00
return err
2024-08-30 04:30:33 +03:00
}
2024-09-06 14:24:55 +03:00
err = g.ifaceToIPSet.Enable()
2024-09-04 10:59:52 +03:00
if err != nil {
2024-09-06 14:24:55 +03:00
return err
2024-09-04 10:59:52 +03:00
}
2024-09-06 14:24:55 +03:00
g.Enabled = true
2024-09-04 10:59:52 +03:00
2024-09-06 14:24:55 +03:00
return nil
}
2024-09-05 05:42:10 +03:00
2024-09-06 14:24:55 +03:00
func (g *Group) Disable() []error {
var errs []error
2024-09-05 06:21:26 +03:00
2024-09-06 14:24:55 +03:00
if !g.Enabled {
return nil
2024-09-05 05:42:10 +03:00
}
2024-09-06 14:24:55 +03:00
errs2 := g.ifaceToIPSet.Disable()
if errs2 != nil {
errs = append(errs, errs2...)
2024-09-05 05:42:10 +03:00
}
2024-09-06 14:52:25 +03:00
err := g.ipset.Destroy()
if err != nil {
errs = append(errs, err)
}
2024-09-06 14:24:55 +03:00
g.Enabled = false
2024-08-30 04:30:33 +03:00
return nil
}
2024-09-06 14:24:55 +03:00
func (a *App) AddGroup(group *models.Group) error {
if _, exists := a.Groups[group.ID]; exists {
return ErrGroupIDConflict
2024-08-30 04:30:33 +03:00
}
2024-09-06 14:24:55 +03:00
ipsetName := fmt.Sprintf("%s%d", a.Config.IpSetPostfix, group.ID)
2024-09-05 05:42:10 +03:00
2024-09-06 14:24:55 +03:00
a.Groups[group.ID] = &Group{
Group: group,
ipset: a.NetfilterHelper.IPSet(ipsetName),
ifaceToIPSet: a.NetfilterHelper.IfaceToIPSet(fmt.Sprintf("%sROUTING_%d", a.Config.ChainPostfix, group.ID), group.Interface, ipsetName, false),
2024-08-30 04:30:33 +03:00
}
return nil
}