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標(biāo)題: MYZR IMX6 EK200 RTL8188EUS WIFI AP [打印本頁]

作者: myzr123 時(shí)間: 2018-7-1 21:45
標(biāo)題: MYZR IMX6 EK200 RTL8188EUS WIFI AP
主機(jī)平臺(tái)： UBUNTU14.04
硬件平臺(tái)：明遠(yuǎn)智睿MY-IMX6-EK200
編譯器: gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux.tar.xz
buildroot版本：buildroot-2017.02.5.tar.bz2
內(nèi)核版本 linux-3.14.52

1.內(nèi)核需要配置,配置完直接編譯zImage
CONFIG_CFG80211=y
CONFIG_MAC80211=y
CONFIG_HOSTAP=y
CONFIG_USB_USBNET=y

2. 編譯rtl8188eus模塊
源碼包：rtl8188EUS_linux_v4.3.0.9_15178.20150907%28myimx6%29.tar.xz
$ tar xvf rtl8188EUS_linux_v4.3.0.9_15178.20150907%28myimx6%29.tar.xz
$ cd rtl8188EUS_linux_v4.3.0.9_15178.20150907
$ vim Makefile
修改增加（源碼路徑和交叉編譯工具路徑）
ifeq ($(CONFIG_PLATFORM_ARM_MYIMX6), y)
EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN
ARCH := arm
CROSS_COMPILE ?= ~/IMX6/gcc-linaro-arm-linux-gnueabihf-4.9-2014.09_linux/bin/arm-linux-gnueabihf-
KVER ?= 3.14.52
KSRC ?= /home/linyn/rs485/linux-custom
endif

vim include/autoconf.h
修改：
#define CONFIG_IOCTL_CFG80211
#ifdef CONFIG_IOCTL_CFG80211
#define RTW_USE_CFG80211_STA_EVENT
//#defineCONFIG_CFG80211_FORCE_COMPATIBLE_2_6_37_UNDER
//#define CONFIG_DEBUG_CFG80211 1
#endif
...
...
#define CONFIG_CONCURRENT_MODE
…
最后編譯模塊8188eu.ko

3.移植hostapd和dhcpd
a)如果是用buildroot編譯的話，直接用make menuconfig配置就行,這里不講了
b)或者自己獨(dú)立編譯hostapd和dhcpd

4.配置hostapd和dhcpd
a) 配置hostapd
vim /etc/hostapd.conf
interface=wlan0
driver=nl80211
ssid=MYZR
channel=9
hw_mode=g
macaddr_acl=0
ignore_broadcast_ssid=0
auth_algs=1
wpa=3
wpa_passphrase=12345678
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP

b)配置dhcpd
touch /var/db/dhcpd.leases

vim /etc/dhcpd.conf
在最后增加：
subnet 192.168.155.0 netmask 255.255.255.0
{
range 192.168.155.2 192.168.155.10;
option domain-name-servers 8.8.8.8;
option routers 192.168.155.1;
}

5.啟動(dòng)熱點(diǎn)和自動(dòng)獲取IP
echo "1" >/proc/sys/net/ipv4/ip_forward
hostapd -B /etc/hostapd.conf
ifconfig wlan0 192.168.155.1
dhcpd wlan0
看圖片“WIFIAP.png”

最后通過手機(jī)，可以搜索“MYZR”的熱點(diǎn)，直接輸入密碼“12345678”，這樣手機(jī)WIF連接成功，會(huì)自動(dòng)分別192.168.155.*的IP.

注意：以上雖然分配到IP，但是不能上網(wǎng)，需要使用iptables開啟本地的SNAT
經(jīng)過前面幾個(gè)步驟，無線網(wǎng)卡已經(jīng)可以自動(dòng)分配IP，現(xiàn)在只需要把無線網(wǎng)卡的數(shù)據(jù)都經(jīng)過eth0(有線網(wǎng)絡(luò))發(fā)到外網(wǎng)去，這就需要IP轉(zhuǎn)發(fā)了。
6.配置內(nèi)核
Networking support --->
Networking options --->Network packet filtering framework (Netfilter) --->
Core Netfilter Configuration ---> //除了下面列出的其他全選
< > Transparent proxying support (EXPERIMENTAL)
< > set target and match support
< > CHECKSUM target support
< > "CT" target support
< > "DSCP" and "TOS" target support
< > "NOTRACK" target support
< > "TCPOPTSTRIP" target support (EXPERIMENTAL)
< > "dscp" and "tos" match support
< > "ipvs" match support
<*> IP set support --->
(256) Maximum number of IP sets
<*> bitmap:ip set support
<*> bitmap:ip,mac set support
<*> bitmap:port set support
<*> list:set set support
<*> IP virtual server support ---> //除了下面列出的其他全選
[ ] IP virtual server debugging
[ ] SCTP load balancing support
< > FTP protocol helper
< > SIP persistence engine
IP: Netfilter Configuration ---> //里面的全選
<*> RF switch subsystem support --->
//注意要選最后一項(xiàng)，不然在使用hostapd命令時(shí)會(huì)出錯(cuò)，“rfkill: Cannot open RFKILL control device”.
7.移植iptables直接用buildroot配置編譯就行，或者獨(dú)立編譯，這里不講了udhcpc -i eth0
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
這樣連接wifi，手機(jī)和ubuntu的WPA2-PSK的無線wifi AP設(shè)置完畢，可以正常使用了。

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