/
rpc-tun.go
78 lines (61 loc) · 2.19 KB
/
rpc-tun.go
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package rpc
/*
Sliver Implant Framework
Copyright (C) 2019 Bishop Fox
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import (
"time"
"github.com/bishopfox/sliver/server/core"
clientpb "github.com/bishopfox/sliver/protobuf/client"
sliverpb "github.com/bishopfox/sliver/protobuf/sliver"
"github.com/golang/protobuf/proto"
)
const (
tunDefaultTimeout = 30 * time.Second
)
func tunnelCreate(client *core.Client, req []byte, resp RPCResponse) {
tunCreateReq := &clientpb.TunnelCreateReq{}
proto.Unmarshal(req, tunCreateReq)
tunnel := core.Tunnels.CreateTunnel(client, tunCreateReq.SliverID)
data, err := proto.Marshal(&clientpb.TunnelCreate{
SliverID: tunnel.Sliver.ID,
TunnelID: tunnel.ID,
})
resp(data, err)
}
func tunnelData(client *core.Client, req []byte, _ RPCResponse) {
tunnelData := &sliverpb.TunnelData{}
proto.Unmarshal(req, tunnelData)
tunnel := core.Tunnels.Tunnel(tunnelData.TunnelID)
if tunnel != nil && client.ID == tunnel.Client.ID {
tunnel.Sliver.Request(sliverpb.MsgTunnelData, tunDefaultTimeout, req)
} else {
rpcLog.Warnf("Data sent on nil tunnel %d", tunnelData.TunnelID)
}
}
func tunnelClose(client *core.Client, req []byte, resp RPCResponse) {
tunCloseReq := &clientpb.TunnelCloseReq{}
proto.Unmarshal(req, tunCloseReq)
tunnel := core.Tunnels.Tunnel(tunCloseReq.TunnelID)
if tunnel != nil && client.ID == tunnel.Client.ID {
closed := core.Tunnels.CloseTunnel(tunCloseReq.TunnelID, "Client exit")
closeResp := &sliverpb.TunnelClose{
TunnelID: tunCloseReq.TunnelID,
}
if !closed {
closeResp.Err = "Failed to close tunnel"
}
data, err := proto.Marshal(closeResp)
resp(data, err)
}
}