无线驱动安装(BCM4312)

#lsb_release -a
LSB Version:    :core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 6.3 (Santiago)
Release:        6.3
Codename:       Santiago

#uname -r
2.6.32-279.el6.i686

# lspci | grep Net*
04:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
06:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5906M Fast Ethernet PCI Express (rev 02)

对于BCM4312有两种安装方式:
1.Broadcom提供的无线驱动wl
官方网址是:，通过查看README.txt安装.
参考链接:http://my.oschina.net/crazypenguin/blog/64240
参考链接:

2.Linux开源社区提供的B43
官方网址是:%2Fusers%2FDrivers%2Fbcm43x
参考链接:

我是用第二种方法安装,没有网络的可以通过配置本地Yum源来安装一些基本依赖软件,通过U盘拷贝下载的软件.
/etc/yum.repos.d/  打开一个repo后缀的仓库,修改baseurl=file://挂载点      
挂载点是ISO镜像的挂载目录,如果挂载在/mnt/cdrom下，baseurl=file:///mnt/cdrom

第一步:
http://bues.ch/b43/fwcutter/b43-fwcutter-017.tar.bz2 下载b43-fwcutter-017.tar.bz2
#tar jxvf b43-fwcutter-017.tar.bz2
#cd b43-fwcutter-017
#make && make install

第二步:
下载broadcom-wl-5.10.56.27.3_mipsel.tar.bz2
#tar jxvf broadcom-wl-5.10.56.27.3_mipsel.tar.bz2
#b43-fwcutter -w /lib/firmware broadcom-wl-5.10.56.27.3/driver/wl_apsta/wl_prebuilt.o

第三步:
下载wl_apsta-3.130.20.0.o
#b43-fwcutter -w /lib/firmware wl_apsta-3.130.20.0.o

第四步:
#modprobe b43
#iwconfig wlan0 up
#route add default gw 192.168.1.1
这个时候我的无线灯亮了.
如果没有亮
There are several other drivers (besides this one) that can drive
Broadcom 802.11 chips such as b43, bcma and ssb. They will conflict with
this driver and need to be uninstalled before this driver can be installed.
Any previous revisions of the wl driver also need to be removed.
这个是Broadcom WL官方文档中一段话，B43,BCMA,SSB,WL可能相互有冲突.
可以试试阻止这几个bcma,wl,ssb
#echo "blacklist 驱动名称" >> /etc/modprobe.d/blacklist

第五步：
#iwlist wlan0 scannig 产生类似的接入点
Cell 01 - Address: 1C:FA:68:BF:A4:DA
  Channel:1
  Frequency:2.412 GHz (Channel 1)
  Quality=23/70  Signal level=-87 dBm
  Encryption key:on
  ESSID:"Super man"
  Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
      9 Mb/s; 12 Mb/s; 18 Mb/s
  Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
  Mode:Master
  Extra:tsf=00000003c6bad180
  Extra: Last beacon: 268ms ago
  IE: Unknown: 00095375706572206D616E
  IE: Unknown: 010882848B960C121824
  IE: Unknown: 030101
  IE: Unknown: 050400010000
  IE: Unknown: 0706555320010D14
  IE: Unknown: 200100
  IE: Unknown: 2A0100
  IE: IEEE 802.11i/WPA2 Version 1
   Group Cipher : CCMP
   Pairwise Ciphers (1) : CCMP
   Authentication Suites (1) : PSK
  IE: Unknown: 32043048606C
  IE: Unknown: 2D1A6E1003FFFF000000000000000000000000000000000000000000
  IE: Unknown: 3D1601051100000000000000000000000000000000000000
  IE: WPA Version 1
   Group Cipher : CCMP
   Pairwise Ciphers (1) : CCMP
   Authentication Suites (1) : PSK
  IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
  IE: Unknown: DD0900037F01010000FF7F
  IE: Unknown: DD0E0050F204104A0001101044000102
主要关心ESSID:"Super man",这个是接入点.Super man就是一个接入点.
#iwlist wlan0 essid "Super man" keys s:"密码"
不过这个iwlist支持WEP ,不支持WPA1和WPA2.输入密码的时候会报错.

第六步:安装wpa_supplicant
官方文档:
下载地址:

可以通过本地Yum安装
#yum install wpa_su*
# rpm -qa | grep wpa*
wpa_supplicant-0.7.3-3.el6.i686

第七步:配置
官方文档:
参考链接:http://muyun107.blog.163.com/blog/static/6957547020112833940880/
参考链接:

#vim /etc/wpa_supplicant/wpa_supplicant.conf
在配置文件中添加
ctrl_interface_group=0
ap_scan=1
network={
 ssid="接入点"
 proto=WPA2
 key_mgmt=WPA-PSK
 pairwise=CCMP TKIP
 group=CCMP TKIP WEP104 WEP40
 psk=“密码'
 priority=2
}
需要填入接入点和登录的密码.

# vim /etc/sysconfig/wpa_supplicant
INTERFACES="-iwlan0" ；配置设备接口（Interface） wlan0
DRIVERS="-Dwext"  ；配置驱动(Driver) (Wireless Extensions)
OTHER_ARGS="-f /var/log/wpa_supplicant.log -P /var/run/wpa_supplicant.pid"

第八步:
chkconfig wpa_supplicant on
dhclient wlan0 ;动态获取Ip地址
测试:
# ping
PING (119.75.218.77) 56(84) bytes of data.
64 bytes from 119.75.218.77: icmp_seq=1 ttl=57 time=28.1 ms
64 bytes from 119.75.218.77: icmp_seq=2 ttl=57 time=35.6 ms
64 bytes from 119.75.218.77: icmp_seq=3 ttl=57 time=28.9 ms
64 bytes from 119.75.218.77: icmp_seq=4 ttl=57 time=34.8 ms