Android5.0系统wifip2p默认ssid和密码
logcat -s WifiEnabler Wifimultisupport WifiPowerSetting WifiStateMachine wpa_supplicant ConnectivityService NetworkSettingsActivity WifiController WifiHW CommandListener WifiP2pService wifi wpa_supplicant WifiMonitor SupplicantStateTracker WifiP2pSettings WifiMonitor WifiNative-HAL
一、问题描述
无法通过配置文件修改默认的p2p的ssid和password。
二、问题原因
1.文件权限问题
Android系统wifi之p2p（wifi直连）配置文件权限导致应用不能使用wifi问题
2.设置密码命令执行错误问题
D/WifiP2pService( 2046): ---Mod Group info, pw: "eeeeeeee" D/wifi ( 2046): TK--------->>>>>>>JNI>>>>doBooleanCommand>>11111 D/WifiHW ( 2046): TK--------->>>>command is SET_NETWORK 0 psk "eeeeeeee",reply is ,reply_len is 4095 D/WifiHW ( 2046): TK-------->>>wifi_send_command,ctrl_conn is I/wpa_supplicant( 4841): [CTRL_IFACE_G]SET_NETWORK 0 psk "eeeeeeee" D/wifi ( 2046): TK--------->>>>>>>JNI>>>>doBooleanCommand>>33333>>>reply is UNKNOWN COMMAND D/WifiP2pService( 2046): ---set pw error原因；wps不识别“SET_NETWORK 0 psk "eeeeeeee"”命令。
修改如下：
frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiNative.java
public WifiNative(String interfaceName) {
mInterfaceName = interfaceName;
mTAG = "WifiNative";// + interfaceName; tank
//if (!interfaceName.equals("p2p0")) {
mInterfacePrefix = "IFNAME=" + interfaceName + " ";
//} else {
// commands for p2p0 interface don't need prefix
//mInterfacePrefix = "";
//} //tank
}结果：
D/WifiHW ( 2055): TK--------->>>>command is IFNAME=p2p0 SET_NETWORK 0 psk "dddddddd",reply is ,reply_len is 4095 D/WifiHW ( 2055): TK-------->>>wifi_send_command,ctrl_conn is � I/wpa_supplicant( 4846): [CTRL_IFACE]p2p0: SET_NETWORK 0 psk "dddddddd" D/wifi ( 2055): TK--------->>>>>>>JNI>>>>doBooleanCommand>>33333>>>reply is OK ...... D/WifiHW ( 2055): TK--------->>>>command is IFNAME=p2p0 P2P_GROUP_ADD persistent=1,reply is OK,reply_len is 4095 D/WifiHW ( 2055): TK-------->>>wifi_send_command,ctrl_conn is � I/wpa_supplicant( 4846): [CTRL_IFACE]p2p0: P2P_GROUP_ADD persistent=1 D/wifi ( 2055): TK--------->>>>>>>JNI>>>>doBooleanCommand>>33333>>>reply is OK其实没有设置成功。
3.修改“IFNAME=p2p0 P2P_GROUP_ADD persistent=1”为“IFNAME=p2p0 P2P_GROUP_ADD persistent=0”
frameworks/opt/net/wifi/service/java/com/android/server/wifi/WifiNative.java
public boolean p2pGroupAdd(boolean persistent) {
//modify by tank always add persistent 0 fixed 0 may cause cts verifiver p2p group owner fail
/*if (persistent) {
return doBooleanCommand("P2P_GROUP_ADD persistent");
}
return doBooleanCommand("P2P_GROUP_ADD");*/
return doBooleanCommand("P2P_GROUP_ADD" + " persistent=0");//mod by HQS
//end tank
}
public boolean p2pGroupAdd(int netId) {
//modify by tank always add persistent 0 fixed 0 may cause cts verifiver p2p group owner fail
//return doBooleanCommand("P2P_GROUP_ADD persistent=" + netId);
return doBooleanCommand("P2P_GROUP_ADD" + " persistent=0");//mod by HQS
//end tank
}结果：可以立即设置成功。
D/WifiHW ( 2026): TK--------->>>>command is IFNAME=p2p0 P2P_GROUP_ADD persistent=0,reply is ��K�L�pIN�,reply_len is 4095 D/WifiHW ( 2026): TK-------->>>wifi_send_command,ctrl_conn is � I/wpa_supplicant( 4657): [CTRL_IFACE]p2p0: P2P_GROUP_ADD persistent=0 D/wifi ( 2026): TK--------->>>>>>>JNI>>>>doBooleanCommand>>33333>>>reply is OK E/wpa_supplicant( 4657): Using interface p2p0 with hwaddr 7e:b2:32:24:9d:da and ssid "TANK_p2p"三、p2p默认配置文件
system/etc/wifi/p2p_supplicant.conf
ctrl_interface=/data/system/wpa_supplicant
update_config=1
device_type=10-0050F204-5
config_methods=virtual_push_button physical_display keypad
p2p_listen_reg_class=81
p2p_listen_channel=11
p2p_oper_reg_class=81
p2p_oper_channel=11
p2p_go_intent=0
persistent_reconnect=1
network={
ssid="TANK_p2p"
psk="123456789"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
mode=3
disabled=2
}