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运行socks server时,admin节点panic崩溃 #10

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ier005 opened this issue Sep 4, 2019 · 2 comments
Open

运行socks server时,admin节点panic崩溃 #10

ier005 opened this issue Sep 4, 2019 · 2 comments
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bug Something isn't working

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@ier005
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ier005 commented Sep 4, 2019

版本1.1.0,released on 10 Jun

在运行一段时间后,报错:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x40 pc=0x53e5e6]

goroutine 13303 [running]:
github.com/Dliv3/Venom/admin/dispather.localSocks5Server(0x5d0200, 0xc00000e010, 0xc00005e2c0, 0x40, 0xc000110000, 0xc000044000, 0x1, 0x1)
        /Users/dlive/Code/Go/src/github.com/Dliv3/Venom/admin/dispather/sender.go:427 +0xb6
created by github.com/Dliv3/Venom/netio.InitTCP.func1
        /Users/dlive/Code/Go/src/github.com/Dliv3/Venom/netio/init.go:56 +0x1e1

@Dliv3 Dliv3 added the bug Something isn't working label Sep 4, 2019
@ier005
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ier005 commented Sep 15, 2019

看了一波源码,发现问题出在下面的代码上:

peerNode := node.Nodes[peerNodeID]
currentSessionID := node.Nodes[peerNodeID].DataBuffers[protocol.SOCKSDATA].GetSessionID()

若是agent节点掉线被删除,对应的peerNodeID已经不存在,则此处会报错,个人认为出现此种情况应该停止监听此端口,即修改下述源码逻辑,在Accept处判断peerNodeID是否仍然合法,并做相应操作(不过仅修改此处无法保证已经被调用的handlerFunc中不出现非法引用?)

Venom/netio/init.go

Lines 49 to 58 in e13049c

for {
c <- true
conn, err := listener.Accept()
if err != nil {
log.Println("[-]listener.Accept error:", err)
// continue
break
}
go handlerFunc(conn, peerNodeID, c, args)
}

但在package netio内引入package node会导致循环引用问题,这样一来就需要对整个代码架构进行一定的修改,个人时间及能力有限,所以希望作者能够对该问题进行修正。。

BTW,在查看源码的过程中发现了上传与下载文件的一个小bug,已提PR。

@wanzhoukaoyu
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我也遇到这种情况了,怎么解决的?

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