linux_Wifi模块移植——station模式

作者：杨正 QQ：1209758756<[email protected]>2013.7.13

 

前言

wpa_supplicant本是开源项目源码，被谷歌修改后加入android移动平台，它主要是用来支持WEP，WPA/WAP2和WAPI无线协议和加密认证的，而实际上的工作内容是通过socket(不管是wpa_supplicant与上层还是wpa_supplicant与驱动都采用socket通讯)与驱动交互上数据报给用户，而用户可以通过socket发送命令给wpa_supplicant调用驱动来对wifi芯片操作。简单的说，wpa_supplicant就是wifi驱动和用户的中转站外加对协议和加密认证的支持。

 

移植

从Linux-3.0开始，RT2070/3070的STA驱动已经作为正式版本加入了Linux内核源码中了(从Linux-2.6.32开始以实验版本加入Linux内核中)。本篇文章主要介绍如何在内核中编译支持RT3070的STA驱动，并连接到我的无线路由器上去。

 

1、配置linux内核支持RT3070，我们以build-in(内置)的方式将RT3070的驱动集成到linux内核里面去：
[lingyun@localhostyangzheng]$ cd linux-3.0

[[email protected]]$ vt100

[[email protected]]$ make menuconig

[*] Networking support  --->

        -*-   Wireless  --->

             <*>   cfg80211 - wireless configuration API

              [ ]     nl80211 testmode command

              [ ]     enable developer warnings

              [ ]     cfg80211 regulatory debugging

              [*]     enable powersave by default

             [ ]     use statically compiled regulatory rulesdatabase

              [ ]     cfg80211 wireless extensions compatibility

              <*>   Common routines for IEEE802.11 drivers

              [ ]   lib80211 debugging messages

              <*>   Generic IEEE 802.11 Networking Stack(mac80211)

              [ ]   PID controller based rate control algorithm

              [*]   Minstrel

              [*]     Minstrel 802.11n support

                    Default rate controlalgorithm (Minstrel)  --->

              [ ]   Enable mac80211 mesh networking(pre-802.11s) support

              [ ]   Select mac80211 debugging features  --->

 

 Device Drivers  --->

      Generic Driver Options  --->

              (/sbin/hotplug) path to ueventhelper

             [ ] Maintain a devtmpfsfilesystem to mount at /dev

              [ ] Select only drivers thatdon't need compile-time external firmware

              [ ] Prevent firmware from beingbuilt

              -*- Userspace firmware loadingsupport

             [*]   Include in-kernel firmware blobs in kernelbinary

              ()    External firmware blobs to build into thekernel binary

 

     [*] Network device support --->

         [*]   Wireless LAN  --->

            <*>   Ralink driversupport  --->

                   --- Ralink driver support

                   < >   Ralink rt2500 (USB) support

                   < >   Ralink rt2501/rt73 (USB) support

                   <*>   Ralink rt27xx/rt28xx/rt30xx (USB) support

                   [ ]    rt2800usb - Include support for rt33xxdevices

                   [ ]    rt2800usb - Include support for rt35xxdevices (EXPERIMENTAL)

                   [ ]    rt2800usb - Include support for rt53xx devices(EXPERIMENTAL)

                   [ ]    rt2800usb - Include support for unknown(USB) devices

                  [*]  Ralink debug output

注：此过程默认linux内核已经能在开发板上跑了，这里只是添加对RT3070的支持。

 

2、重新编译内核，下载到开发板上，插入RT3070的无线网卡并启动内核：

……

usb 1-1.2: newfull speed USB device number 3 using s3c2410-ohci

usb 1-1.2: New USBdevice found, idVendor=148f,idProduct=3070

usb 1-1.2: New USBdevice strings: Mfr=1, Product=2, SerialNumber=3

usb 1-1.2:Product: 802.11 n WLAN

usb 1-1.2:Manufacturer: Ralink

usb 1-1.2:SerialNumber: 1.0

phy0 ->rt2x00_set_chip: Info - Chipset detected - rt: 3070, rf: 0005, rev: 0201.

dm9000 dm9000.0:eth0: link down

 

Copyright (C) 2013yangzheng<[email protected]>

root login: root

>: lsusb

Bus 001 Device001: ID 1d6b:0001

Bus 001 Device002: ID 05e3:0606

Bus 001Device 003: ID 148f:3070    //RT3070的厂商ID和设备ID

 

 

 

 

 

>: ifconfigwlan0 up

phy0 -> rt2x00lib_request_firmware: Info - Loading firmware file 'rt2870.bin'.

phy0 -> rt2x00lib_request_firmware:Error - Failed to request Firmware.

ifconfig: SIOCSIFFLAGS: No such file ordirectory

这时我们在使用RT3070的驱动时发现，R3070的驱动还需要rt2870.bin这个系统固件(firmware)。

 

3、linux官方网站下载rt2870.bin这个系统固件：

1）、在pc上下载rt2870.bin这个系统固件：

[[email protected]]$ git clonegit://git.kernel.org/pub/scm/linux/kernel/git/dwmw2/linux-firmware.git

注：git 命令的讲解：http://blog.csdn.net/hudashi/article/details/7664396

2）、把rt2870.bin这个系统固件下载到开发板的/lib/filmware下，再重启网卡：

>: mkdir-p  /lib/firmware

>: cdlib/firmware/

>: tftp -grrt2870.bin 192.168.1.3

>: ifconfigwlan0 up

phy0 -> rt2x00lib_request_firmware:Info - Loading firmware file 'rt2870.bin'.

phy0 ->rt2x00lib_request_firmware: Info - Firmware detected - version: 0.29.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 3, CWmax: 4, Aifs: 2,TXop: 102.

phy0 -> rt2x00mac_conf_tx:Info - Configured TX queue 1 - CWmin: 4, CWmax: 5, Aifs: 2, TXop: 188.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 5, CWmax: 10, Aifs: 3,TXop: 0.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 5, CWmax: 10, Aifs: 7,TXop: 0.

 

4、wireless_tools和wpa_supplicant的交叉编译及移植：

1)、编译wireless_tools

[lingyun@localhostwireless]$ wget http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/wireless_tools.29.tar.gz

[lingyun@localhostwireless]$ tar -zxfwireless_tools.29.tar.gz

[lingyun@localhostwireless]$ mkdir

[lingyun@localhostwireless]$ cd wireless_tools.29

[lingyun@localhostwireless_tools.29]$ vim Makefile

修改的地方如下：

PREFIX =/home/lingyun/yangzheng/wireless/wireless_tools

Endif

 

CROSS=/opt/buildroot-2012.08/arm920t/usr/bin/arm-linux-

## Compiler to use(modify this for cross compile).

CC=${CROSS}gcc

## Other tools youneed to modify for cross compile (static lib only).

AR=${CROSS}ar

RANLIB=${CROSS}ranlib

 

## Distributionsshould probably use /, but they probably know better...

ifndef PREFIX

  PREFIX =/home/lingyun/yangzheng/wireless/wireless_tools //安装路径

endif

 

[lingyun@localhostwireless_tools.29]$ sudo make

[lingyun@localhostwireless_tools.29]$ ls

** iwlist  ** iwspy  **  iwgetid ** iwconfig  ** ifrename ** iwpriv         libiw.so.29 ** iwevent **   

 

2）、编译wpa_supplicant

       注意：由于wpa_supplicant依赖openssl库，所以这里我们得先交叉编译openssl，在交叉编译之前，我们得把wpa_supplicant-0.7.3.tar.gz源码中的openssl的补丁给打了

[lingyun@localhostwireless]$ wget http://hostap.epitest.fi/releases/wpa_supplicant-2.0.tar.gz

[lingyun@localhostwireless]$ wget http://www.openssl.org/source/openssl-0.9.8e.tar.gz

 

[lingyun@localhostwireless]$ tar -xzf openssl-0.9.8e.tar.gz

[lingyun@localhostwireless]$ tar -xzf wpa_supplicant-2.0.tar.gz

[lingyun@localhostwireless]$ cd wpa_supplicant-2.0

[lingyun@localhostwpa_supplicant-2.0]$ ls

COPYING  patches  README src  wpa_supplicant

[[email protected]]$ cp../wpa_supplicant-2.0/patches/openssl-0.9.8e-tls-extensions.patch .

[[email protected]]$ patch -p1 <./openssl-0.9.8e-tls-extensions.patch

[[email protected]]$ vim Makefile

# equal 4.

# PKCS1_CHECK -pkcs1 tests.

 

CROSS=/opt/buildroot-2012.08/arm920t/usr/bin/arm-linux-

CC=${CROSS}gcc

CXX=${CROSS}g++

AR=${CROSS}ar$(ARFLAGS) r

AS=${CROSS}as

LD=${CROSS}ld

NM=${CROSS}nm

RANLIB=${CROSS}ranlib

STRIP=${CROSS}strip

 

INSTALL_PREFIX=

#INSTALLTOP=/usr/local/ssl

INSTALLTOP=/home/lingyun/yangzheng/wireless/install

 

# Do not edit thismanually. Use Configure --openssldir=DIR do change this!

#OPENSSLDIR=/usr/local/ssl

OPENSSLDIR=/home/lingyun/yangzheng/wireless/install

 

[lingyun@localhostwireless]$ mkdir install

[lingyun@localhostwireless]$ cd openssl-0.9.8e

[[email protected]]$ sudo make

[[email protected]]$ sudo make install

[lingyun@localhostwireless]$ cd install/

[lingyun@localhostinstall]$ ls

bin  certs include  lib  man misc  openssl.cnf  private

 

[lingyun@localhostwpa_supplicant-2.0]$ cd wpa_supplicant/

[lingyun@localhostwpa_supplicant]$ cp defconfig .config

 

#LIBS = -lssl

###############################################################################

 

CROSS=/opt/buildroot-2012.08/arm920t/usr/bin/arm-linux-

OPENSSL_PATH=/home/lingyun/yangzheng/wireless

# Driver interfacefor Host AP driver

CONFIG_DRIVER_HOSTAP=y

 

CC=${CROSS}gcc

CFLAGS+=-I${OPENSSL_PATH}/install/include

LDFLAGS+=-L${OPENSSL_PATH}/install/lib–lssl

 

#CONFIG_DRIVER_ATMEL=y

 

CONFIG_DRIVER_RALINK=y

 

#CONFIG_PKCS12=y

 

#CONFIG_SMARTCARD=y

 

CONFIG_IEEE80211N=y

[lingyun@localhostwpa_supplicant]$ sudo make

[lingyun@localhostwpa_supplicant]$ /opt/buildroot-2012.08/arm920t/usr/bin/arm-linux-stripwpa_supplicant

 

[lingyun@localhostwpa_supplicant]$ ls

wpa_passphrase ** wpa_supplicant** wpa_supplicant_conf.sh ** wpa_cli

 

3)、安装交叉编译出来的二进制文件到arm开发板上

 

>: cdapps/tools/

>: ls

iwconfig        iwlist          iwpriv          wpa_passphrase  wpa_supplicant

>:

 

5、wpa_supplicant.conf文件的生成

>: wpa_passphrase 无线路遥的用户名 无线路遥密码 >> wpa_supplicant.conf

>: cat /etc/wpa_supplicant.conf

#WPA-PSK/TKIP

#wpa_supplicant -Dwext -iwlan0-c/etc/wpa_supplicant.conf

 

ctrl_interface=/var/run/wpa_supplicant

 

network={

       ssid="Router_LingYun" //无线路遥用户名

       key_mgmt=WPA-PSK

       proto=WPA

       pairwise=TKIP

       group=TKIP

       psk="password"   //无线路遥密码

       #psk=0f7b8ce91adcb61f1dcb6f76c87033c852fd3ebb7f4f2e2869860f077d376d9b

}

 

 

>: mkdir –p/var/run/wpa_supplicant

>: ifconfig -a

eth0      Link encap:Ethernet  HWaddr 5A:51:DE:6D:A0:07 

          inet addr:192.168.1.111  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST MULTICAST  MTU:1500 Metric:1

          RX packets:0 errors:0 dropped:0overruns:0 frame:0

          TX packets:0 errors:0 dropped:0overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

          Interrupt:51 Base address:0x4300

 

lo        Link encap:Local Loopback 

          LOOPBACK  MTU:16436 Metric:1

          RX packets:0 errors:0 dropped:0overruns:0 frame:0

          TX packets:0 errors:0 dropped:0overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

 

wlan0     Link encap:Ethernet  HWaddr 00:0C:43:30:72:81 

          UP BROADCAST MULTICAST  MTU:1500 Metric:1

          RX packets:0 errors:0 dropped:0overruns:0 frame:0

          TX packets:0 errors:0 dropped:0overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

 

>: ifconfigwlan0 192.168.1.198

>: ifconfig

eth0      Link encap:Ethernet  HWaddr 5A:51:DE:6D:A0:07 

          inet addr:192.168.1.111  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST MULTICAST  MTU:1500 Metric:1

          RX packets:0 errors:0 dropped:0overruns:0 frame:0

          TX packets:0 errors:0 dropped:0overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

          Interrupt:51 Base address:0x4300

 

wlan0     Link encap:Ethernet  HWaddr 00:0C:43:30:72:81 

          inet addr:192.168.1.198  Bcast:192.168.1.255  Mask:255.255.255.0

          UP BROADCAST MULTICAST  MTU:1500 Metric:1

          RX packets:0 errors:0 dropped:0overruns:0 frame:0

          TX packets:0 errors:0 dropped:0overruns:0 carrier:0

          collisions:0 txqueuelen:1000

          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

 

>: ifconfigeth0 down

>:  wpa_supplicant -Dwext -iwlan0-c/etc/wpa_supplicant.conf

Successfullyinitialized wpa_supplicant

wlan0: Trying toassociate with d8:5d:4c:18:04:7a (SSID='Router_LingYun' freq=2437 MHz)

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 2, CWmax: 3, Aifs: 2,TXop: 47.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2,TXop: 94.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3,TXop: 0.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7,TXop: 0.

wlan0: Associatedwith d8:5d:4c:18:04:7a

wlan0: WPA: Keynegotiation completed with d8:5d:4c:18:04:7a [PTK=TKIP GTK=TKIP]

wlan0:CTRL-EVENT-CONNECTED - Connection to d8:5d:4c:18:04:7a completed [id=0 id_str=]

wlan0: WPA: Grouprekeying completed with d8:5d:4c:18:04:7a [GTK=TKIP]

phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 0 -CWmin: 2, CWmax: 3, Aifs: 2, TXop: 47.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2,TXop: 94.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3,TXop: 0.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7,TXop: 0.

cfg80211: CallingCRDA to update world regulatory domain

wlan0:CTRL-EVENT-DISCONNECTED bssid=d8:5d:4c:18:04:7a reason=3 locally_generated=1

wlan0:CTRL-EVENT-TERMINATING

>:  wpa_supplicant -Dwext -iwlan0-c/etc/wpa_supplicant.conf & //后台运行

>: Successfullyinitialized wpa_supplicant

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 2, CWmax: 3, Aifs: 2,TXop: 47.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2,TXop: 94.

phy0 -> rt2x00mac_conf_tx:Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3, TXop: 0.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7,TXop: 0.

phy0 ->rt2800usb_watchdog: Warning - TX HW queue 1 timed out, invoke forced kick

phy0 ->rt2x00usb_watchdog_tx_status: Warning - TX queue 0 status timed out, invokeforced tx handler

wlan0: Trying toassociate with d8:5d:4c:18:04:7a (SSID='Router_LingYun' freq=2437 MHz)

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 2, CWmax: 3, Aifs: 2,TXop: 47.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2,TXop: 94.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3,TXop: 0.

phy0 ->rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7,TXop: 0.

wlan0: Associatedwith d8:5d:4c:18:04:7a

wlan0: WPA: Keynegotiation completed with d8:5d:4c:18:04:7a [PTK=TKIP GTK=TKIP]

wlan0:CTRL-EVENT-CONNECTED - Connection to d8:5d:4c:18:04:7a completed [id=0 id_str=]

wlan0: WPA: Grouprekeying completed with d8:5d:4c:18:04:7a [GTK=TKIP]

 

 

>: udhcpc -iwlan0

udhcpc (v1.20.2)started

Sendingdiscover...

Sending select for192.168.1.112...

Lease of192.168.1.112 obtained, lease time 7200

 

>: ping 192.168.1.2

PING 192.168.1.2 (192.168.1.2): 56 data bytes

64 bytes from192.168.1.2: seq=0 ttl=64 time=52.348 ms

64 bytes from192.168.1.2: seq=1 ttl=64 time=49.054 ms

64 bytes from192.168.1.2: seq=2 ttl=64 time=51.124 ms

64 bytes from192.168.1.2: seq=3 ttl=64 time=45.258 ms

64 bytes from192.168.1.2: seq=4 ttl=64 time=44.082 ms

 

参考： 

wpa_supplicant的编译，使用参考：

 http://blog.csdn.net/farsight2009/article/details/5660878

 http://www.linuxidc.com/Linux/2011-10/45202.htm

http://www.cnblogs.com/zhuqing/archive/2011/04/06/2006763.html

 http://blog.chinaunix.net/space.php?uid=22915173&do=blog&id=88182

 

 

到这里就可以就可以接到路由器上了！！！

AP模式还没做！！！！！