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new: queue handle is not passed to the packet proxy plugins in order to be able to drop/accept packets from within the callback (fixes #1202)

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evilsocket 2025-07-12 11:59:55 +02:00
commit 414d18a6da
1 changed files with 5 additions and 3 deletions
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8
modules/packet_proxy/packet_proxy_linux.go
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@ -16,13 +16,15 @@ import (
"github.com/evilsocket/islazy/fs" "github.com/evilsocket/islazy/fs"
) )
type hookFunc func(q *nfqueue.Nfqueue, a nfqueue.Attribute) int
type PacketProxy struct { type PacketProxy struct {
session.SessionModule session.SessionModule
chainName string chainName string
rule string rule string
queue *nfqueue.Nfqueue queue *nfqueue.Nfqueue
queueNum int queueNum int
queueCb nfqueue.HookFunc queueCb hookFunc
pluginPath string pluginPath string
plugin *plugin.Plugin plugin *plugin.Plugin
} }
@ -149,7 +151,7 @@ func (mod *PacketProxy) Configure() (err error) {
return return
} else if sym, err = mod.plugin.Lookup("OnPacket"); err != nil { } else if sym, err = mod.plugin.Lookup("OnPacket"); err != nil {
return return
} else if mod.queueCb, ok = sym.(func(nfqueue.Attribute) int); !ok { } else if mod.queueCb, ok = sym.(hookFunc); !ok {
return fmt.Errorf("Symbol OnPacket is not a valid callback function.") return fmt.Errorf("Symbol OnPacket is not a valid callback function.")
} }
@ -198,7 +200,7 @@ func (mod *PacketProxy) Configure() (err error) {
// CGO callback ... ¯\_(ツ)_/¯ // CGO callback ... ¯\_(ツ)_/¯
func dummyCallback(attribute nfqueue.Attribute) int { func dummyCallback(attribute nfqueue.Attribute) int {
if mod.queueCb != nil { if mod.queueCb != nil {
return mod.queueCb(attribute) return mod.queueCb(mod.queue, attribute)
} else { } else {
id := *attribute.PacketID id := *attribute.PacketID