16 wpa_cli Summaries

V0.0.1

16.1 Histroy

• 2014-06-16, rayoslee, release V0.0.1

16.2 FAQ

1. How to use wpa_cli -a?
   • In Ubuntu side
     sudo wpa_cli -iwlan1 -a/home/ray/168_AcSip/wpa_cli_issue/wpa_action.sh &
sudo wpa_cli -iwlan1
     And enter interactive mode
     list_network to get interface_id
     To trigger wpa-action.sh
     disable_network interface_id to see some events and wpa-action.sh message
     enable_network interface_id to see some events again and wpa-action.sh message
     quit

   • In S605-32 demo kit (only STA mode)
     Almost the same upper case
     ./wpa_cli -p/tmp/wpa_supplicant -a/mnt/nand1-1/wifi/wpa_action.sh -iwlan0 &
./wpa_cli -p/tmp/wpa_supplicant -iwlan0

   • In S605-32 demo kit (concurrent with Soft AP and STA mode)
     Almost the same upper case, we can just use p2p_cli instead of wpa_cli because of two sockets definition.
     p2p_cli -p/tmp/wpa_supplicant -a/mnt/nand1-1/wifi/wpa_action.sh -iwlan0 &
p2p_cli -p/tmp/wpa_supplicant -iwlan0

2. About wpa_action.sh, this is a example to show the status in changed network.

   #!/bin/sh or #!/bin/bash
   
   #S605=DISABLE
   
   Time=`date`
   echo "rayos: GO======$Time===================" 
   echo "rayos: GO======$Time===================" > wpa.log
   IFNAME=$1
   CMD=$2
   echo "rayos: ========$IFNAME, $CMD==========="
   echo "rayos: ========$IFNAME, $CMD===========" >> wpa.log
   echo "rayos: ========$Time============="
   echo "rayos: ========$Time=============" >> wpa.log
   if [ "$S605" == "DISABLE" ]; then
      SSID=`wpa_cli -i$IFNAME status | grep ^ssid= | cut -f2- -d=`
      sleep 3
      ADDR=`wpa_cli -i$IFNAME status | grep ^ip_address= | cut -f2- -d=`
   else
      SSID=`./wpa_cli -p/tmp/wpa_supplicant -i$IFNAME status | grep ^ssid= | cut -f2- -d=`
      sleep 3
      ADDR=`./wpa_cli -p/tmp/wpa_supplicant -i$IFNAME status | grep ^ip_address= | cut -f2- -d=`   
   fi
   echo "rayos: ========$SSID============="
   echo "rayos: ========$ADDR============="
   Time2=`date`
   echo -e "rayos: DONE========$Time2======\n"

3. How to build wpa_supplicant in embedded linux (0.6.10 or 0.7.3)?

   • Download it and cp defconfig .config and modify it
     # Example configuration for various cross-compilation platforms
     
     #### sveasoft (e.g., for Linksys WRT54G) ######################################
     #CC=mipsel-uclibc-gcc
     ### 20140226, rayoslee@acsip, modify my CC and L
     CC=/usr/local/arm_linux_4.2/bin/arm-linux-gcc -L../../OPENSSL/lib.out/openssl/lib
     #rayoslee
     #CC=/opt/brcm/hndtools-mipsel-uclibc/bin/mipsel-uclibc-gcc
     #CFLAGS += -Os
     #CPPFLAGS += -I../src/include -I../../src/router/openssl/include
     #LIBS += -L/opt/brcm/hndtools-mipsel-uclibc-0.9.19/lib -lssl
     ###############################################################################
     
     ….
     # Select TLS implementation
     # openssl = OpenSSL (default)
     # gnutls = GnuTLS (needed for TLS/IA, see also CONFIG_GNUTLS_EXTRA)
     # internal = Internal TLSv1 implementation (experimental)
     # none = Empty template
     CONFIG_TLS=internal
     
     ….
     # If CONFIG_TLS=internal is used, additional library and include paths are
     # needed for LibTomMath. Alternatively, an integrated, minimal version of
     # LibTomMath can be used. See beginning of libtommath.c for details on benefits
     # and drawbacks of this option.
     
     CONFIG_INTERNAL_LIBTOMMATH=y
     #ifndef CONFIG_INTERNAL_LIBTOMMATH
     
     [options]
     # Driver interface for Host AP driver
     #CONFIG_DRIVER_HOSTAP=y
     # Driver interface for Atmel driver
     #CONFIG_DRIVER_ATMEL=y
     # Driver interface for wired Ethernet drivers
     #CONFIG_DRIVER_WIRED=y
     # EAP-FAST
     # Note: Default OpenSSL package does not include support for all the
     # functionality needed for EAP-FAST. If EAP-FAST is enabled with OpenSSL,
     # the OpenSSL library must be patched (openssl-0.9.8d-tls-extensions.patch)
     # to add the needed functions.
     CONFIG_EAP_FAST=y
     # Wi-Fi Protected Setup (WPS)
     CONFIG_WPS=y
     CONFIG_EAP_WPS=y
     
     ifndef CONFIG_INTERNAL_LIBTOMMATH
     #LTM_PATH=/usr/src/libtommath-0.39
     #20140226, rayoslee@acsip, modify LibTomMath path
     LTM_PATH=../../OPENSSL/lib.out
     #rayoslee
     CFLAGS += -I$(LTM_PATH)
LIBS += -L$(LTM_PATH)
LIBS_p += -L$(LTM_PATH)
     endif

   • Modify Makefile
     ifndef CC
     #CC=gcc
     #20140226, rayoslee@acsip
     CC=/usr/local/arm_linux_4.2/bin/arm-linux-gcc -L../../OPENSSL/lib.out/openssl/lib/
     #rayoslee
     endif
     
     ….
     ifndef CONFIG_ELOOP
     CONFIG_ELOOP=eloop
     endif
     OBJS += ../src/utils/$(CONFIG_ELOOP).o
     #20140615, rayoslee
     ifdef CONFIG_WAPI_SUPPORT
     CFLAGS += -DCONFIG_WAPI_SUPPORT
     endif
     #rayos

   • To make it, to get wpa_supplicant and wpa_cli.