全志平台华为4G模块调试记录2_专栏

1. 前言

上篇主要是描述的需要修改的地方；
这里主要描述网络配置和调试方法

2. 修改ip-up脚本

#!/system/bin/sh

PPPD_PID_FILE=/data/system/${PHYINTERFACE}_pppd.pid

case $1 in
    ppp[1-9])
    /android/bin/iptables --flush;
    /android/bin/iptables --table nat --flush;
    /android/bin/iptables --delete-chain;
    /android/bin/iptables --table nat --append POSTROUTING --out-interface ppp0 -j MASQUERADE;
    /android/bin/iptables --append FORWARD --in-interface $1 -j ACCEPT;
    echo 0 > /proc/sys/net/ipv4/ip_forward;
    echo 1 > /proc/sys/net/ipv4/ip_forward;
    ;;
    ppp0)
        /system/bin/setprop "net.interfaces.defaultroute" "gprs";
        ;;
esac

#just for debug ...............shuge@allwinnertech.com
#/system/bin/log -t aw-pppoe "0: $0"
#/system/bin/log -t aw-pppoe "1: $1"
#/system/bin/log -t aw-pppoe "2: $2"
#/system/bin/log -t aw-pppoe "3: $3"
#/system/bin/log -t aw-pppoe "4: $4"
#/system/bin/log -t aw-pppoe "5: $5"
#/system/bin/log -t aw-pppoe "6: $6"
#
#/system/bin/log -t aw-pppoe "LINKNAME: $LINKNAME"
#/system/bin/log -t aw-pppoe "IFNAME: $IFNAME"
#/system/bin/log -t aw-pppoe "DEVICE: $DEVICE"
#/system/bin/log -t aw-pppoe "PPPLOGNAME: $PPPLOGNAME"
#/system/bin/log -t aw-pppoe "PPPD_PID: $PPPD_PID"
#/system/bin/log -t aw-pppoe "PEERNAME: $PEERNAME"
#/system/bin/log -t aw-pppoe "SPEED: $SPEED"
#/system/bin/log -t aw-pppoe "USEPEERDNS: $USEPEERDNS"
#/system/bin/log -t aw-pppoe "LINKINTERFACE: $LINKINTERFACE"

# Use interface name if linkname is not available
NAME="$PHYINTERFACE-"$1""

/system/bin/setprop "net.$NAME.dns1" "$DNS1"
/system/bin/setprop "net.$NAME.dns2" "$DNS2" 
/system/bin/setprop "net.$NAME.local-ip" "$IPLOCAL" 
/system/bin/setprop "net.$NAME.remote-ip" "$IPREMOTE" 
/system/bin/setprop "net.${PHYINTERFACE}-pppoe.phyif" "$1"
/system/bin/setprop "net.${PHYINTERFACE}-pppoe.status" "started"

3. 运行huawei-ppp-on脚本

sh ./huawei-ppp-on --user=card --pwd=card --pn=*99# --auth=chap --apn=1234
正常情况下打印为：


er=card --pwd=card --pn=*99# --auth=chap --apn=1234                           <
*=--user=card
--pwd*=--pwd=card
--pn*--pn=*99#
--auth*=--auth=chap
--apn*=--apn=1234
root@petrel-p1:/system/etc/ppp # abort on (NO CARRIER)
abort on (NO DIALTONE)
abort on (ERROR)
abort on (NO ANSWER)
abort on (BUSY)
abort on (Username/Password Incorrect)
send (AT^M)
expect (OK)
AT^M^M
OK
 -- got it
send (ATH0^M)
expect (OK)
^M
ATH0^M^M
OK
 -- got it

send (AT+CGDCONT=1,"IP","1234"^M)
expect (OK)
^M
AT+CGDCONT=1,"IP","1234"
OK
 -- got it

send (ATDT*99#^M)
expect (CONNECT)

ATDT*99#^M^M
CONNECT
 -- got it
send

4. 查看虚拟网卡

执行命令busybox ifconfig，可以看到生成了ppp0网口，如下：

但是此时是无法连接互联网的，因为没有配置dns

5. 查看dns

首先看下通过pppoe报文交互获得dns是什么，利用命令获取如下：getprop | grep dns

[net.-ppp0.dns1]: [211.136.20.203]
[net.-ppp0.dns2]: [211.136.17.107]

6. 配置dsn

root@petrel-p1:/system/etc/ppp # setprop net.dns1 211.136.20.203
root@petrel-p1:/system/etc/ppp # setprop net.dns2 211.136.17.107               
root@petrel-p1:/system/etc/ppp # ndc resolver setifdns ppp0 "" 211.136.20.203
200 0 Resolver command succeeded
root@petrel-p1:/system/etc/ppp # ndc resolver setdefaultif ppp0

7. ping百度

ping www.baidu.com

PING www.a.shifen.com (183.232.231.173) 56(84) bytes of data.
64 bytes from 183.232.231.173: icmp_seq=1 ttl=55 time=49.2 ms
64 bytes from 183.232.231.173: icmp_seq=2 ttl=55 time=31.4 ms
64 bytes from 183.232.231.173: icmp_seq=3 ttl=55 time=30.6 ms
64 bytes from 183.232.231.173: icmp_seq=4 ttl=55 time=29.7 ms
64 bytes from 183.232.231.173: icmp_seq=5 ttl=55 time=25.6 ms
64 bytes from 183.232.231.173: icmp_seq=6 ttl=55 time=32.8 ms
64 bytes from 183.232.231.173: icmp_seq=7 ttl=55 time=32.6 ms
64 bytes from 183.232.231.173: icmp_seq=8 ttl=55 time=28.5 ms
64 bytes from 183.232.231.173: icmp_seq=9 ttl=55 time=27.5 ms
64 bytes from 183.232.231.173: icmp_seq=10 ttl=55 time=33.8 ms
64 bytes from 183.232.231.173: icmp_seq=11 ttl=55 time=32.2 ms
64 bytes from 183.232.231.173: icmp_seq=12 ttl=55 time=31.3 ms
64 bytes from 183.232.231.173: icmp_seq=13 ttl=55 time=27.2 ms
64 bytes from 183.232.231.173: icmp_seq=14 ttl=55 time=33.6 ms
64 bytes from 183.232.231.173: icmp_seq=15 ttl=55 time=29.4 ms
64 bytes from 183.232.231.173: icmp_seq=16 ttl=55 time=31.2 ms
64 bytes from 183.232.231.173: icmp_seq=17 ttl=55 time=28.7 ms
64 bytes from 183.232.231.173: icmp_seq=18 ttl=55 time=33.5 ms
64 bytes from 183.232.231.173: icmp_seq=19 ttl=55 time=32.4 ms
64 bytes from 183.232.231.173: icmp_seq=20 ttl=55 time=30.1 ms
64 bytes from 183.232.231.173: icmp_seq=21 ttl=55 time=26.7 ms
64 bytes from 183.232.231.173: icmp_seq=22 ttl=55 time=33.5 ms
64 bytes from 183.232.231.173: icmp_seq=23 ttl=55 time=33.5 ms
64 bytes from 183.232.231.173: icmp_seq=24 ttl=55 time=28.5 ms
64 bytes from 183.232.231.173: icmp_seq=25 ttl=55 time=30.8 ms
64 bytes from 183.232.231.173: icmp_seq=26 ttl=55 time=33.6 ms
64 bytes from 183.232.231.173: icmp_seq=27 ttl=55 time=31.8 ms
64 bytes from 183.232.231.173: icmp_seq=28 ttl=55 time=29.5 ms
64 bytes from 183.232.231.173: icmp_seq=29 ttl=55 time=33.6 ms

表明手动测试，可以连接网络了。