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adb shell tcpdump -i wlan0 -p -s 0 -w /sdcard/trout3.pcap 【#1】----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- echo 8 > /proc/sys/kernel/printk adb pull /system/etc/wifi/2351_wifi_configure.ini . adb push \shexsrvTo_Internaljinglong.chenittiam.ko /system/lib/modules adb push \shexsrvTo_Internaljinglong.chen2351_wifi_configure.ini /productinfo/ insmod /system/lib/modules/ittiam.ko ifconfig wlan0 up iwnpi wlan0 start iwnpi wlan0 set_channel 1 iwnpi wlan0 set_rate 54 iwnpi wlan0 tx_start iwnpi wlan0 get_reg phy0 0x70 2 iwnpi wlan0 set_channel 1 iwnpi wlan0 tx_start rmmod ittiam.ko npi_start_cmd-->itm_wlan_mac_open_cmd eng_vdiag_thread-->eng_diag-->eng_diag_parse-->is_ap_at_cmd_need_to_handle(解析出type) eng_vdiag_thread-->eng_diag-->eng_diag_user_handle-->eng_diag_apcmd_hdlr-->eng_linuxcmd_hdlr-->eng_linuxcmd[cmd]-->eng_linuxcmd_wifieutmode-->eng_atdiag_euthdlr(通过eut_cmds[]解析出cmd)-->wifi_eutops[] 【#2】----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- packages/apps/Settings/src/com/android/settings/wifi frameworks/base/wifi/java/android/net/wifi frameworks/base/services/java/com/android/server jni代码 android_net_wifi_Wifi.cpp wifi_itm.c wpa_supplicant下行代码：driver_nl80211.c driver_cmd_nl80211.c kernel wifi公共代码：nl80211.c net/wireless/core.c itm_cfg80211.c out/target/product/sp8830ec/obj/EXECUTABLES/wpa_supplicant_intermediates/ insmod /system/lib/modules/ittiam.ko wpa_supplicant -Dnl80211 -dd -iwlan0 -c/data/misc/wifi/wpa_supplicant.conf -C/data/misc/wifi/wpa_supplicant & wpa_cli -p/data/misc/wifi/wpa_supplicant -iwlan0 scan_results set_network 0 ssid "1102" set_network 0 key_mgmt NONE enable_network 1 logcat -s WifiHW logcat -s wpa_supplicant wpa_printf(MSG_ERROR, "%s(), line:%d ", __FUNCTION__,__LINE__); int wpa_debug_level = MSG_INFO; //MSG_DEBUG ADD_NETWORK SET_NETWORK 3 ssid "testap-2" SET_NETWORK 3 key_mgmt WPA-PSK SET_NETWORK 3 psk "fgfffffffgffff" SET_NETWORK 3 priority 0 ENABLE_NETWORK 3 【c/s建立链接】 main-->wpa_supplicant_add_iface-->wpa_supplicant_init_iface-->wpa_supplicant_ctrl_iface_init wpa_supplicant_ctrl_iface_init-->socket(PF_UNIX, SOCK_DGRAM, 0); -->fname = wpa_supplicant_ctrl_iface_path(wpa_s);// -->bind -->eloop_register_read_sock(priv->sock, wpa_supplicant_ctrl_iface_receive, wpa_s, priv);-->wpa_supplicant_ctrl_iface_process//!!!!!!控制接口 wifi_connect_on_socket_path-->wpa_ctrl_open-->bind/connect 【eloop】 eloop_register_sock eloop_run-->eloop_sock_table_dispatch wpa_supplicant_init_iface-->wpa_supplicant_init_eapol-->eapol_sm_init-->eloop_register_timeout(1, 0, eapol_port_timers_tick, NULL, sm); wpa_supplicant_init-->eloop_init(global) 【接口绑定】 wpa_drivers wpa_supplicant_add_iface-->wpa_supplicant_init_iface-->wpa_supplicant_set_driver-->select_driver-->wpa_drivers[i].global_init(); 【netlink机制】 (1)kernel部分 genl_register_family_with_ops(&nl80211_fam, nl80211_ops, ARRAY_SIZE(nl80211_ops)); (2)wpa部分 wpa_driver_nl80211_ops.nl80211_global_init-->netlink_init-->socket(PF_NETLINK, SOCK_RAW, NETLINK_ROUTE); -->bind -->eloop_register_read_sock(netlink->sock, netlink_receive, netlink, NULL);-->netlink_receive-->wpa_driver_nl80211_event_rtm_newlink 【scan过程】 (1)app部分 drv对app提供的接口定义在driver_i.h wpa_supplicant_req_scan-->wpa_supplicant_scan-->wpa_supplicant_trigger_scan-->wpa_drv_scan-->wpa_driver_nl80211_ops.scan2 = wpa_driver_nl80211_scan-->nl80211_cmd(drv, msg, 0, NL80211_CMD_TRIGGER_SCAN); (2)kernel部分 nl80211_ops.nl80211_trigger_scan-->rdev->ops->scan(&rdev->wiphy, dev, request);-->itm_cfg80211_ops.itm_wlan_cfg80211_scan -->nl80211_send_scan_start 【open式认证】 _wpa_supplicant_event_scan_results-->wpa_supplicant_connect-->wpa_supplicant_associate-->wpa_driver_nl80211_connect wpa_driver_nl80211_event_receive-->process_global_event-->do_process_drv_event-->mlme_event_connect-->wpa_supplicant_event-->wpa_supplicant_event_assoc 【wpa-psk认证】 eapol_supp_sm.c preauth.c .set_operstate = wpa_driver_nl80211_set_operstate, .set_supp_port = wpa_driver_nl80211_set_supp_port, wpa_supplicant_ctrl_iface_add_network wpa_supplicant_ctrl_iface_enable_network-->wpa_supplicant_enable_network-->wpa_supplicant_req_scan process_global_event-->do_process_drv_event-->send_scan_event send_scan_event-->wpa_supplicant_event-->wpa_supplicant_event_scan_results-->_wpa_supplicant_event_scan_results -->wpa_supplicant_rsn_preauth_scan_results -->wpa_supplicant_pick_network -->wpa_supplicant_connect-->wpa_supplicant_associate-->wpa_drv_associate-->wpa_driver_nl80211_associate-->wpa_driver_nl80211_connect -->wpa_supplicant_initiate_eapol wpa_driver_nl80211_associate(函数中!WPA_DRIVER_FLAGS_SME(wpa_driver_nl80211_capa获得),关联认证不分开,程序走到 wpa_driver_nl80211_connect,) nl80211_global_init-->wpa_driver_nl80211_init_nl_global-->wpa_driver_nl80211_event_receive nl_cb_set(global->nl_cb, NL_CB_VALID, NL_CB_CUSTOM,process_global_event, global); wpa_driver_nl80211_event_receive->process_global_event-->do_process_drv_event-->mlme_event_connect-->wpa_supplicant_event-->wpa_supplicant_event_assoc l2_packet_receive-->wpa_supplicant_rx_eapol-->wpa_sm_rx_eapol wpa_eapol_key_send-->wpa_sm_ether_send-->supp_ether_send-->l2_packet_send wpa_supplicant_process_1_of_4 wpa_supplicant_send_2_of_4 nl_send_auto_complete wpa_driver_nl80211_set_mode-->nl80211_mgmt_subscribe_non_ap-->nl80211_register_action_frame src/rsn_supp/preauth.c src/rsn_supp/wpa.c src/rsn_supp/peerkey.c src/commmon/wpa_common.c wpa_supplicant/scan.c wpa_supplicant/wpa_supplicant.c # wpa_supplicant/ctrl_iface.c # wap_supplicant/events.c wap_supplicant/scan.c wap_supplicant/sme.c src/l2_packet/l2_packet_linux.c src/drivers/driver_nl80211.c wpa_supplicant/wpa_supplicant.c wpa_supplicant/sme.c 通过 SIOCGIFHWADDR 获得 mac addr (记住在这里获得mac地址) netlink_send_oper_ifla /sys/class/net/wlan0/operstate 【driver】 printk("%s() ", __func__); drivers/net/wireless/ittiam/itm_cfg80211.c drivers/net/wireless/ittiam/itm_main.c drivers/net/wireless/ittiam/itm_sipc.c net/wireless/core.c net/wireless/nl80211.c nl80211_connect-->itm_wlan_cfg80211_connect genlmsg_multicast_netns 【802.1x相关】 eapol_supp_sm.c wpa_supplicant_init_eapol-->eapol_sm_init #define SM_STATE(machine, state) static void sm_ ## machine ## _ ## state ## _Enter(STATE_MACHINE_DATA *sm, int global) #define SM_ENTER(machine, state) sm_ ## machine ## _ ## state ## _Enter(sm, 0) #define SM_STEP(machine) static void sm_ ## machine ## _Step(STATE_MACHINE_DATA *sm) #define SM_STEP_RUN(machine) sm_ ## machine ## _Step(sm) 【反馈扫描结果】 (1)kernel itm_cfg80211_report_scan_done-->cfg80211_inform_bss_frame-->cfg80211_bss_update-->(list_add_tail(&res->list, &dev->bss_list);) -->cfg80211_scan_done-->nl80211_send_scan_done(NL80211_CMD_NEW_SCAN_RESULTS) (2)wpa_supplicant do_process_drv_event-->send_scan_event-->wpa_supplicant_event(EVENT_SCAN_RESULTS)-->wpa_supplicant_event_scan_results-->_wpa_supplicant_event_scan_results-->wpa_supplicant_get_scan_results-->wpa_driver_nl80211_get_scan_results-->nl80211_get_scan_results-->nl80211_cmd(NL80211_CMD_GET_SCAN);send_and_recv_msgs(drv, msg, bss_info_handler, &arg); (3)kernel NL80211_CMD_GET_SCAN.nl80211_dump_scan-->list_for_each_entry(scan, &rdev->bss_list, list)-->nl80211_send_bss (4)wpa_supplicant bss_info_handler wpa_supplicant_ctrl_iface_scan_results 【定时扫描】 scan_interval SCAN_INTERVAL _wpa_supplicant_event_scan_results --> {int timeout_sec = wpa_s->scan_interval;} -------------------P2P kernel-------------------------------- nl80211_ops.NL80211_CMD_REMAIN_ON_CHANNEL-->nl80211_remain_on_channel nl80211_tx_mgmt(NL80211_CMD_FRAME)-->cfg80211_mlme_mgmt_tx-->(rdev->ops->mgmt_tx) ------------------------------------P2P wpa_supplicant---------------------------------- p2p_find()-->(p2p->cfg->p2p_scan)==wpas_p2p_scan()-->p2p_scan_ie p2p_listen p2p_ctrl_listen-->wpas_p2p_listen-->p2p_listen-->wpas_start_listen-->wpa_drv_remain_on_channel-->wpa_driver_nl80211_remain_on_channel nl80211_send_frame-->nl80211_send_frame_cmd(NL80211_CMD_FRAME) 【管理帧处理】 wpa_supplicant_event(EVENT_RX_MGMT)-->wpas_p2p_rx_action-->p2p_process_presence_resp 【p2p功能的支持】 wiphy_info_handler-->(capa->flags |= WPA_DRIVER_FLAGS_P2P_CAPABLE;) 【设置模式】 wpa_supplicant wpa_driver_nl80211_set_mode-->nl80211_set_mode(NL80211_CMD_SET_INTERFACE) kernel NL80211_CMD_SET_INTERFACE.nl80211_set_interface-->cfg80211_change_iface-->(rdev->ops->change_virtual_intf).itm_wlan_cfg80211_change_iface-->itm_wlan_change_mode 【p2p启动】 wpa_supplicant -iwlan0 -Dnl80211 -c/data/misc/wifi/p2p_supplicant.conf -puse_p2p_group_interface=1 -C/data/misc/wifi/wpa_supplicant & wpa_cli -p/data/misc/wifi/wpa_supplicant -iwlan0 wpa_printf(MSG_ERROR, "%s(), line:%d ", __FUNCTION__,__LINE__); wpa_printf(MSG_ERROR, "%s() ", __FUNCTION__); 【p2p_find】 p2p_find-->wpas_p2p_scan-->wpa_driver_nl80211_scan do_process_drv_event(NL80211_CMD_NEW_SCAN_RESULTS)-->send_scan_event-->wpa_supplicant_event(EVENT_SCAN_RESULTS)-->wpa_supplicant_event_scan_results-->_wpa_supplicant_event_scan_results-->wpas_p2p_scan_res_handler-->p2p_scan_res_handler-->p2p_add_device p2p_add_device-->p2p_parse_ies-->p2p_parse_wps_ie wpa_supplicant_event(EVENT_P2P_DEV_FOUND) p2p_connect f6:05:35:a9:3f:ff pbc auth go_intent=7