请问如何修复 "pcap init failed"? #10

wilia · 2018-06-28T14:43:11Z

安装号rsock后我使用以下命令
/opt/rsock/./server_rsock_Linux --dev=venet0 --taddr=127.0.0.1:32227 --ports=12221-12225
dev: venet0, ipv4: 127.0.0.1
Run in background. pid: 8226
但是在ps aux看不到进程，查看日志如下
2018-06-28 22:38:08.633 ERROR [8226] [RCap::doInit@108] init failed: arptype 65535 not supported by libpcap - falling back to cooked socket
2018-06-28 22:38:08.633 ERROR [8226] [ISockApp::doInit@211] pcap init failed
2018-06-28 22:38:08.633 DEBUG [8226] [ISockApp::Close@275]

组件安装了 libuv libnet libpcap libdnet gcc gcc-c++

iceonsun · 2018-06-29T02:02:49Z

root权限确认一下
你应该知道--dev的意思，是外网网卡(监听来自client的流量)。但我看这个dev是一loopback

你先照上面的错误排查一下。如果还有问题，请反馈。记得帖日志。

wilia · 2018-06-29T02:13:32Z

首先，谢谢大大百忙之中回复！
1、我查看的这台vps的网卡就是venet0，不知道对不对
[root@ss ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
link/void
inet 127.0.0.1/32 scope host venet0
inet 155.94.181.XX/32 brd 155.94.181.XX scope global venet0:0
[root@ss ~]#
2、然后我用的是root账户，这个是确认的，因为我懒得创建普通用户再配置sudo，感觉多此一举
3、请问贴日志是贴的默认生成/var/log/rsock/rsock.log这个嘛？
如果是的话我只有这个,我运行的时候加了-v参数，可是日志还是输出这些，没有变化
2018-06-29 10:09:38.982 DEBUG [27511] [ISockApp::doInit@182] conf: {"daemon": true, "log": "/var/log/rsock/rsock.log", "param": {"cap_timeout": 10, "dev": "venet0", "duration": 600, "hash": "bt25^n1", "keepalive": 4, "lcapIp": "155.94.181.xx", "ludp": "", "ports": "12221-12225", "taddr": "127.0.0.1:32227", "type": "all", "unPath": ""}, "server": true, "verbose": true}
2018-06-29 10:09:38.983 DEBUG [27511] [RCap::doInit@65] filter : ((tcp[tcpflags] & tcp-syn != 0) and tcp and (ip src 155.94.181.xx) and ( src portrange 12221-12225 )) or (tcp and (ip dst 155.94.181.xx) and ( dst portrange 12221-12225 )and (tcp[tcpflags] & (tcp-syn) == 0))
2018-06-29 10:09:38.997 ERROR [27511] [RCap::doInit@108] init failed: arptype 65535 not supported by libpcap - falling back to cooked socket
2018-06-29 10:09:38.997 ERROR [27511] [ISockApp::doInit@211] pcap init failed
2018-06-29 10:09:38.997 DEBUG [27511] [ISockApp::Close@275]

iceonsun · 2018-06-29T02:22:52Z

这应该是pcap的问题，我看网上也出现过这种问题。明天我仔细瞅瞅。工作日不方便干这事

…

On Fri, Jun 29, 2018 at 10:13 AM wilia ***@***.***> wrote: 首先，谢谢大大百忙之中回复！ 1、我查看的这台vps的网卡就是venet0，不知道对不对 ***@***.*** ~]# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN link/void inet 127.0.0.1/32 scope host venet0 inet 155.94.181.XX/32 brd 155.94.181.XX scope global venet0:0 ***@***.*** ~]# 2、然后我用的是root账户，这个是确认的，因为我懒得创建普通用户再配置sudo，感觉多此一举 3、请问贴日志是贴的默认生成/var/log/rsock/rsock.log这个嘛？如果是的话我只有这个,我运行的时候加了-v参数，可是日志还是输出这些，没有变化 2018-06-29 10:09:38.982 DEBUG [27511] ***@***.*** conf: {"daemon": true, "log": "/var/log/rsock/rsock.log", "param": {"cap_timeout": 10, "dev": "venet0", "duration": 600, "hash": "bt25^n1", "keepalive": 4, "lcapIp": "155.94.181.xx", "ludp": "", "ports": "12221-12225", "taddr": "127.0.0.1:32227", "type": "all", "unPath": ""}, "server": true, "verbose": true} 2018-06-29 10:09:38.983 DEBUG [27511] ***@***.*** filter : ((tcp[tcpflags] & tcp-syn != 0) and tcp and (ip src 155.94.181.xx) and ( src portrange 12221-12225 )) or (tcp and (ip dst 155.94.181.xx) and ( dst portrange 12221-12225 )and (tcp[tcpflags] & (tcp-syn) == 0)) 2018-06-29 10:09:38.997 ERROR [27511] ***@***.*** init failed: arptype 65535 not supported by libpcap - falling back to cooked socket 2018-06-29 10:09:38.997 ERROR [27511] ***@***.*** pcap init failed 2018-06-29 10:09:38.997 DEBUG [27511] ***@***.*** — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#10 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/Ae6H9GtxgNhF5YhCisGe432XMrvcrD39ks5uBY1OgaJpZM4U7hX9> .

wilia · 2018-06-29T02:23:59Z

嗯嗯，好的，麻烦大大了。

iceonsun · 2018-06-30T09:23:36Z

你运行下tcpdump，看一下输出是什么。

tcpdump "host your_ip"

wilia · 2018-06-30T10:00:34Z

测试过程如下：
[root@ss ~]# /opt/rsock/./server_rsock_Linux --lcapIp=155.94.181.X --type=all -t 127.0.0.1:32227 --ports=12221-12225 -v
Run in background. pid: 3786
[root@ss ~]# cat /var/log/rsock/rsock.log
2018-06-30 17:53:56.153 DEBUG [3786] [ISockApp::doInit@182] conf: {"daemon": true, "log": "/var/log/rsock/rsock.log", "param": {"cap_timeout": 10, "dev": "venet0", "duration": 600, "hash": "hello135", "keepalive": 4, "lcapIp": "155.94.181.X", "ludp": "", "ports": "12221-12225", "taddr": "127.0.0.1:32227", "type": "all", "unPath": ""}, "server": true, "verbose": true}
2018-06-30 17:53:56.153 DEBUG [3786] [RCap::doInit@65] filter : ((tcp[tcpflags] & tcp-syn != 0) and tcp and (ip src 155.94.181.X) and ( src portrange 12221-12225 )) or (tcp and (ip dst 155.94.181.X) and ( dst portrange 12221-12225 )and (tcp[tcpflags] & (tcp-syn) == 0))
2018-06-30 17:53:56.169 ERROR [3786] [RCap::doInit@108] init failed: arptype 65535 not supported by libpcap - falling back to cooked socket
2018-06-30 17:53:56.169 ERROR [3786] [ISockApp::doInit@211] pcap init failed
2018-06-30 17:53:56.169 DEBUG [3786] [ISockApp::Close@275]
[root@ss ~]#
[root@ss ~]#
[root@ss ~]#
[root@ss ~]# rm -rf /var/log/rsock/rsock.log
[root@ss ~]#
[root@ss ~]# /opt/rsock/./server_rsock_Linux --lcapIp=155.94.181.X --hash=bCt87^n2 --type=all -t 127.0.0.1:32227 --ports=12221-12225 -v
Run in background. pid: 4110
[root@ss ~]#
[root@ss ~]# cat /var/log/rsock/rsock.log
2018-06-30 17:55:34.623 DEBUG [4110] [ISockApp::doInit@182] conf: {"daemon": true, "log": "/var/log/rsock/rsock.log", "param": {"cap_timeout": 10, "dev": "venet0", "duration": 600, "hash": "bCt87^n2", "keepalive": 4, "lcapIp": "155.94.181.X", "ludp": "", "ports": "12221-12225", "taddr": "127.0.0.1:32227", "type": "all", "unPath": ""}, "server": true, "verbose": true}
2018-06-30 17:55:34.624 DEBUG [4110] [RCap::doInit@65] filter : ((tcp[tcpflags] & tcp-syn != 0) and tcp and (ip src 155.94.181.X) and ( src portrange 12221-12225 )) or (tcp and (ip dst 155.94.181.X) and ( dst portrange 12221-12225 )and (tcp[tcpflags] & (tcp-syn) == 0))
2018-06-30 17:55:34.642 ERROR [4110] [RCap::doInit@108] init failed: arptype 65535 not supported by libpcap - falling back to cooked socket
2018-06-30 17:55:34.642 ERROR [4110] [ISockApp::doInit@211] pcap init failed
2018-06-30 17:55:34.642 DEBUG [4110] [ISockApp::Close@275]
[root@ss ~]#
[root@ss ~]# tcpdump "host 158.94.181.x"
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on venet0, link-type LINUX_SLL (Linux cooked), capture size 262144 bytes

^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
[root@ss ~]#
使用tcpdump "host your_ip"似乎没有出现什么问题

iceonsun · 2018-06-30T10:14:10Z

自己下源代码手动编译试试吧。tcpdump ok的话，按理说pcap就应该支持这个网卡设备。编译指南请看这里 https://github.com/iceonsun/rsock/wiki/%E7%BC%96%E8%AF%91%E6%8C%87%E5%8D%97

如果仍然不ok的话，我现阶段也木有办法，找这个bug估计得需要一番精力

wilia · 2018-06-30T10:17:49Z

使用Linux/macOS里面的步骤编译的话报这个错误
Scanning dependencies of target client_rsock_Linux
[ 0%] Building C object CMakeFiles/client_rsock_Linux.dir/src/rcommon.c.o
In file included from /opt/rsock/src/rcommon.c:6:0:
/opt/rsock/./include/rcommon.h:9:16: fatal error: uv.h: No such file or directory
#include <uv.h>
^
compilation terminated.
make[2]: *** [CMakeFiles/client_rsock_Linux.dir/src/rcommon.c.o] Error 1
make[1]: *** [CMakeFiles/client_rsock_Linux.dir/all] Error 2
make: *** [all] Error 2

iceonsun · 2018-06-30T10:46:12Z

安装libuv等依赖库没有

输入

updatdb
locate uv.h

第2步如果有输出，切输出的路径以/usr/开头。证明有安装。

wilia · 2018-06-30T10:51:08Z

第一个是updatedb命令嘛？updatedb可以，updatdb不行，
[root@ss ~]# updatedb
[root@ss ~]# locate uv.h
/opt/rsock/xbuild/include/libuv/uv.h
/root/cmake-3.11.4/Utilities/cm_uv.h
/root/cmake-3.11.4/Utilities/cmlibuv/include/uv.h
这样表示我没有安装依赖嘛？
请问我还需要安装什么依赖呢？CentOS 7
[root@ss ~]#
[root@ss ~]# yum -y install libuv libnet libdnet libpcap flex byacc gcc gcc-c++
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile

base: repos-lax.psychz.net
epel: mirror.hmc.edu
extras: centos.mirror.ndchost.com
updates: repos-lax.psychz.net
Package 1:libuv-1.19.2-1.el7.x86_64 already installed and latest version
Package libnet-1.1.6-7.el7.x86_64 already installed and latest version
Package libdnet-1.12-13.1.el7.x86_64 already installed and latest version
Package 14:libpcap-1.5.3-11.el7.x86_64 already installed and latest version
Package flex-2.5.37-3.el7.x86_64 already installed and latest version
Package byacc-1.9.20130304-3.el7.x86_64 already installed and latest version
Package gcc-4.8.5-28.el7_5.1.x86_64 already installed and latest version
Package gcc-c++-4.8.5-28.el7_5.1.x86_64 already installed and latest version
Nothing to do
[root@ss ~]#

iceonsun · 2018-06-30T10:57:45Z

是updatedb，我打错了。

这输出不正常啊。安装了uv等库，会有uv.h等头文件啊。你ls -al /usr/include/uv*， /usr/local/include/uv*，/usr/x86-linux(大概是这样)/include/uv* 下面找一下。

wilia · 2018-06-30T10:59:29Z

确实不对呀，这些目录都找不到
[root@ss ~]# ls -al /usr/include/uv*
ls: cannot access /usr/include/uv*: No such file or directory
[root@ss ~]#
[root@ss ~]#
[root@ss ~]# ls -al /usr/local/include/uv*
ls: cannot access /usr/local/include/uv*: No such file or directory
[root@ss ~]#
[root@ss ~]#
[root@ss ~]# ls -al /usr/
bin/ etc/ games/ include/ lib/ lib64/ libexec/ local/ sbin/ share/ src/ tmp/
[root@ss ~]# ls -al /usr/
bin/ etc/ games/ include/ lib/ lib64/ libexec/ local/ sbin/ share/ src/ tmp/
[root@ss ~]# ls -al /usr/

iceonsun · 2018-06-30T11:02:22Z

这个 /usr/include/lib，以及类似的。有include的文件夹，都ls -al 输出一下

比如 ls -al /usr/include/lib/uv*

wilia · 2018-06-30T11:07:47Z

查了下，都没有，这么看来是安装失败了吧，
[root@ss ~]#
[root@ss ~]# ls -al /usr/libexec/nv*
ls: cannot access /usr/libexec/nv*: No such file or directory
[root@ss ~]#
[root@ss ~]# ls -al /usr/libexec/lib*
ls: cannot access /usr/libexec/lib*: No such file or directory
[root@ss ~]#
[root@ss ~]# ls -al /usr/lib64/u*
ls: cannot access /usr/lib64/u*: No such file or directory
[root@ss ~]#
[root@ss ~]#
[root@ss ~]#
[root@ss ~]# ls -al /usr/include/uv*
ls: cannot access /usr/include/uv*: No such file or directory
[root@ss ~]#
[root@ss ~]# ls -al /usr/include/lib*
-rw-r--r-- 1 root root 1398 Apr 10 15:56 /usr/include/libgen.h
-rw-r--r-- 1 root root 4597 Apr 10 15:56 /usr/include/libintl.h
-rw-r--r-- 1 root root 17276 Apr 10 15:56 /usr/include/libio.h
-rw-r--r-- 1 root root 3958 Jun 10 2014 /usr/include/libnet.h

/usr/include/libnet:
total 204
drwxr-xr-x 2 root root 4096 Jun 28 16:06 .
drwxr-xr-x 38 root root 4096 Jun 30 18:55 ..
-rw-r--r-- 1 root root 8031 Mar 6 2012 libnet-asn1.h
-rw-r--r-- 1 root root 96475 Mar 7 2012 libnet-functions.h
-rw-r--r-- 1 root root 62050 Mar 30 2012 libnet-headers.h
-rw-r--r-- 1 root root 6832 Mar 6 2012 libnet-macros.h
-rw-r--r-- 1 root root 12706 Mar 6 2012 libnet-structures.h
-rw-r--r-- 1 root root 1734 Feb 2 2011 libnet-types.h
[root@ss ~]#
[root@ss ~]# ls -al /usr/lib64/uv*
ls: cannot access /usr/lib64/uv*: No such file or directory
[root@ss ~]#
[root@ss ~]# ls -al /usr/lib64/lib*
-rwxr-xr-x 1 root root 8816 Apr 10 16:24 /usr/lib64/libBrokenLocale-2.17.so
lrwxrwxrwx 1 root root 32 Jun 15 12:53 /usr/lib64/libBrokenLocale.so -> ../../lib64/libBrokenLocale.so.1
lrwxrwxrwx 1 root root 23 Jun 15 12:53 /usr/lib64/libBrokenLocale.so.1 -> libBrokenLocale-2.17.so
lrwxrwxrwx 1 root root 15 Jun 15 12:53 /usr/lib64/libEGL.so.1 -> libEGL.so.1.0.0
............
-rwxr-xr-x 1 root root 53600 May 16 16:13 /usr/lib64/libxtables.so.10.0.0
lrwxrwxrwx 1 root root 13 Jun 15 13:07 /usr/lib64/libz.so.1 -> libz.so.1.2.7
-rwxr-xr-x 1 root root 90664 Nov 6 2016 /usr/lib64/libz.so.1.2.7

/usr/lib64/libuser:
total 192
drwxr-xr-x 2 root root 4096 Jun 15 13:08 .
dr-xr-xr-x 34 root root 36864 Jun 30 17:57 ..
-rwxr-xr-x 1 root root 45520 Apr 13 02:44 libuser_files.so
-rwxr-xr-x 1 root root 49400 Apr 13 02:44 libuser_ldap.so
-rwxr-xr-x 1 root root 45512 Apr 13 02:44 libuser_shadow.so

/usr/lib64/libxslt-plugins:
total 44
drwxr-xr-x 2 root root 4096 Jun 10 2014 .
dr-xr-xr-x 34 root root 36864 Jun 30 17:57 ..
[root@ss ~]#

iceonsun · 2018-06-30T11:14:12Z

这个不是有输出么/usr/include/libnet。 ls -al /usr/include/libuv 这样，换一下。

或者这样 locate uv.so locate uv.a

wilia · 2018-06-30T11:29:18Z

只有locate uv.so有/usr/输出
[root@ss ~]# /usr/include/libnet
-bash: /usr/include/libnet: Is a directory
[root@ss ~]#
[root@ss ~]# ls -al /usr/include/libnet/
total 204
drwxr-xr-x 2 root root 4096 Jun 28 16:06 .
drwxr-xr-x 38 root root 4096 Jun 30 18:55 ..
-rw-r--r-- 1 root root 8031 Mar 6 2012 libnet-asn1.h
-rw-r--r-- 1 root root 96475 Mar 7 2012 libnet-functions.h
-rw-r--r-- 1 root root 62050 Mar 30 2012 libnet-headers.h
-rw-r--r-- 1 root root 6832 Mar 6 2012 libnet-macros.h
-rw-r--r-- 1 root root 12706 Mar 6 2012 libnet-structures.h
-rw-r--r-- 1 root root 1734 Feb 2 2011 libnet-types.h
[root@ss ~]# ls -al /usr/include/libuv
ls: cannot access /usr/include/libuv: No such file or directory
[root@ss ~]#
[root@ss ~]# locate uv.so
/usr/lib64/libuv.so.1
/usr/lib64/libuv.so.1.0.0
[root@ss ~]#
[root@ss ~]# locate uv.a
/opt/rsock/xbuild/lib/Darwin_x86_64/libuv.a
/opt/rsock/xbuild/lib/Linux_x86_64/libuv.a
/root/cmake-3.11.4/Utilities/cmlibuv/libcmlibuv.a
[root@ss ~]#

iceonsun · 2018-06-30T12:16:53Z

uv没装上。

如果你会手动编译且自己愿意折腾的话，这样做做：修改CMakeLists.txt，像这行一样: https://github.com/iceonsun/rsock/blob/master/CMakeLists.txt#L8

加入 include_directories(/opt/rsock/xbuild/include/libuv/)，一次加入libpcap, libnet, libdnet的。然后重新编译。如果还报错说没找文件，那就肯定是你的库没装好。

如果不愿意折腾，且客户端不是mac或者windows，就别折腾了。改用kcpraw或者udp2raw吧。不过我没试过

wilia · 2018-06-30T12:41:17Z

嗯，好的

wangyu- · 2018-06-30T17:59:07Z

网卡叫venet0，应该是openvz的(跟我的搬瓦工一个样)。openvz上面不支持SOCK_RAW，所以pcap fallback到了SOCK_DGRAM(也就是所谓的cooked mode)：

2018-06-28 22:38:08.633 ERROR [8226] [RCap::doInit@108] init failed: arptype 65535 not supported by libpcap - falling back to cooked socket

这时pcap_datalink()返回的datalink类型就不再是DLT_EN10MB了，而是DLT_LINUX_SLL，得在代码里单独处理一下。

wilia · 2018-07-02T01:06:37Z

@wangyu- 大佬，没错我是openvz，不过不是帮瓦工，请问该怎么处理呢？

wilia · 2018-07-02T02:35:07Z

编译的话，这次报错不是说没找到文件
[root@ss build]# make
Scanning dependencies of target client_rsock_Linux
[ 0%] Building C object CMakeFiles/client_rsock_Linux.dir/src/rcommon.c.o
[ 1%] Building CXX object CMakeFiles/client_rsock_Linux.dir/src/ISockApp.cpp.o
In file included from /opt/rsock/src/../net/TcpAckPool.h:17:0,
from /opt/rsock/src/ISockApp.cpp:19:
/opt/rsock/src/../net/../bean/TcpInfo.h:15:20: error: 'TH_ACK' was not declared in this scope
uint8_t flag = TH_ACK;
^
/opt/rsock/src/../net/../bean/TcpInfo.h: In member function 'bool TcpInfo::HasCloseFlag()':
/opt/rsock/src/../net/../bean/TcpInfo.h:32:42: error: 'TH_FIN' was not declared in this scope
return static_cast(flag & (TH_FIN | TH_RST));
^
/opt/rsock/src/../net/../bean/TcpInfo.h:32:51: error: 'TH_RST' was not declared in this scope
return static_cast(flag & (TH_FIN | TH_RST));
^
/opt/rsock/src/ISockApp.cpp: In member function 'virtual void ISockApp::initSingletons()':
/opt/rsock/src/ISockApp.cpp:129:10: warning: unused variable 'manager' [-Wunused-variable]
auto manager = ServiceManager::GetInstance();
^
/opt/rsock/src/ISockApp.cpp:130:10: warning: unused variable 'handlerUtil' [-Wunused-variable]
auto handlerUtil = HandlerUtil::GetInstance(mLoop);
^
make[2]: *** [CMakeFiles/client_rsock_Linux.dir/src/ISockApp.cpp.o] Error 1
make[1]: *** [CMakeFiles/client_rsock_Linux.dir/all] Error 2
make: *** [all] Error 2

wangyu- · 2018-07-02T04:41:40Z

@wilia 你自己编译解决不了，得改代码。不过改起来不难，等作者更新吧。

wilia · 2018-07-02T04:42:56Z

@wangyu- 嗯嗯，好的，多谢大佬提醒，我试试 udp2raw 去

xiebruce · 2018-10-31T10:36:38Z

@wilia @wangyu- 请问这个bug现在解决了吗？

iceonsun added the bug Something isn't working label Jun 30, 2018

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请问如何修复 "pcap init failed"? #10

请问如何修复 "pcap init failed"? #10

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请问如何修复 "pcap init failed"? #10

请问如何修复 "pcap init failed"? #10

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wilia commented Jun 28, 2018

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xiebruce commented Oct 31, 2018